JP2001235306A - Rotational position sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotational position sensor for use in automotive engine control or the like, having stable output characteristics while preventing variation in the mounting angle of the sensor on a mating throttle body when it is mounted on the body. SOLUTION: Mounting metal pieces 27 are installed on the inner surfaces of through holes 26 in a pair of mounting portions 25 provided in a case 21 made of resin, and the mounting portions 25 are provided with recess grooves 28 located around the ends of the outer surfaces of the mounting metal pieces 27, so that even if flashes of resin form near the mounting fittings 27 when the case 21 is molded from resin by insertion molding, the flashes are collected in the recess grooves 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotational position sensor used for detecting a position of a throttle shaft of an internal combustion engine, for example.

[0002]

2. Description of the Related Art Generally, an internal combustion engine such as a vehicle uses a throttle valve to control the amount of air flowing into the engine. When the throttle valve is opened, a large amount of air is sucked, and when the throttle valve is closed, a small amount of air is sucked. As a result, the speed of the engine is controlled. The throttle valve is connected to an accelerator pedal, and the opening and closing of the throttle valve is controlled by the amount of depression of the accelerator pedal.

[0003] Conventional rotary position sensors of this type include:
One disclosed in JP-A-7-151508 is known.

Hereinafter, a conventional rotational position sensor will be described with reference to the drawings.

FIG. 9 is a top view showing the internal structure of a conventional rotation position sensor, and FIG. 10 is a side sectional view of the rotation position sensor.

[0009] In FIGS. 9 and 10, reference numeral 1 denotes a cylindrical resin case having a bottom, and this case 1 is provided with a connector portion 2 so as to protrude outward. Is provided with a connector terminal 3, which has one end disposed inside the case 1 and the other end protruding outward. The case 1 is provided with a pair of mounting portions 4 so as to protrude outward from the outer surface, and the mounting portions 4 are provided with through holes 5 from the upper surface to the lower surface. Reference numeral 6 denotes a film-shaped resistor base. The resistor base 6 is disposed so as to be in contact with the inner surface of the case 1, and an electrode ( (Not shown), and a resistance pattern (not shown) is provided so as to be electrically connected to the electrode (not shown). Reference numeral 7 denotes a metal leaf spring. The leaf spring 7 is inserted from the opening side of the case 1 and an electrode (not shown) of the resistor base 6 is connected to the connector terminal 3 of the case 1.
Are electrically connected to each other by press-contacting one end of each of them. Reference numeral 8 denotes a resin rotor. The rotor 8 is rotatably housed in the case 1 and has a brush 9 on a side surface. The brush 9 is connected to a resistance pattern (shown in FIG. ), And a hole 10 is provided inside the rotor 8 from the upper surface to the lower surface, and by inserting a mating rotary shaft (not shown) into the hole 10, The side rotation shaft (not shown) is mechanically connected. Reference numeral 11 denotes a metal cover. The cover 11 closes an opening of the case 1 and has an insertion hole 12 substantially at the center. The insertion hole 12 is provided with the mating rotary shaft (not shown). It is to be inserted.

Next, the operation of the conventional rotational position sensor having the above configuration will be described.

When a counterpart rotating shaft (not shown) mechanically connected to the rotor 8 in the rotation position sensor is rotated, the rotor 8 is rotated with the rotation of the counterpart rotating shaft (not shown).
The position of the brush 9 provided on the resistor base 6 in contact with a resistance pattern (not shown) on the resistor body 6 is changed, whereby a computer or the like on the other side is connected via an electrode (not shown) and the connector terminal 3. The output signal fluctuates and detects the rotation angle of the mating circuit shaft (not shown).

Considering the case where the rotational position sensor is attached to the throttle body body, in the conventional rotational position sensor, a metal mounting bracket (not shown) is inserted into the through hole 5 in the mounting portion 4 of the case 1. ), And a bolt (not shown) is inserted into this mounting bracket (not shown) to attach the rotational position sensor to the throttle body.

[0010]

However, in the above-described conventional configuration, burrs of the mounting portion 4 in the resin case 1 are generated on the upper surface or the lower surface of a mounting bracket (not shown), and the burrs are attached. If it enters between the metal fittings (not shown) and the throttle body main body, the strength of fixing the rotation position sensor to the throttle body main body (not shown) will be deteriorated. There has been a problem that the output signal of the rotational position sensor becomes unstable due to fluctuations.

The present invention solves the above-mentioned conventional problems, and provides a rotational position sensor having a stable output characteristic without the mounting angle being deviated when the rotational position sensor is mounted on the mating throttle body. It is intended to do so.

[0012]

In order to achieve the above object, a rotation position sensor according to the present invention has one end of a connector terminal disposed inside and the other end provided in a connector projecting outward, and A bottomed cylindrical resin case provided with a pair of mounting portions having through holes so as to protrude outward from the outer side surface, and an inner surface of the case provided so as to contact the inner side surface of the case. An electrode is provided at an end of a surface that does not abut on the film, and a film-shaped resistor base provided with a resistor pattern electrically connected to the electrode is provided. A leaf spring that presses an electrode of the body base to one end of the connector terminal inside the case to electrically connect the two to each other; and a rotatable housing that is rotatably housed inside the case and that has a resistance of the resistor body. putter A brush provided in sliding contact with the rotor, and a rotor coupled to the counterpart rotary shaft, and a cover that closes an opening of the case and has an insertion hole into which the counterpart rotary shaft is inserted substantially at the center, A mounting bracket is installed on the inner surface of the through hole in the pair of mounting portions provided in the case, and a concave groove is provided in the mounting portion at a position around the end on the outer surface of the mounting metal. According to this, when the rotation position sensor is mounted on the mating throttle body, the mounting angle does not deviate, and a rotation position sensor with stable output characteristics can be provided.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a connector terminal according to a first embodiment of the present invention; FIG. A bottomed cylindrical resin case provided with a pair of mounting portions having through holes so as to protrude into the case, and a surface provided so as to be in contact with the inner surface of the case and not in contact with the inner surface of the case And a film-shaped resistor base provided with a resistance pattern electrically connected to the electrode, and an electrode of the resistor base inserted from the opening side of the case. A leaf spring that is pressed into contact with one end of the connector terminal inside the case to electrically connect the two to each other, and a brush that is rotatably housed inside the case and slidably contacts a resistance pattern of the resistor body. To provide A pair of mounting portions provided on the case, the rotor including a rotor coupled to the counterpart rotary shaft, and a cover having a through hole into which the counterpart rotary shaft is inserted substantially at the center while closing the opening of the case; The mounting bracket is installed on the inner side surface of the through hole, and the mounting portion is provided with a concave groove located around the end of the outer side surface of the mounting bracket. According to this configuration, a resin case is provided. The mounting bracket is installed on the inner side surface of the through hole in the pair of mounting portions provided in the above, and a concave groove is provided in the mounting portion located around the end on the outer side surface of the mounting portion, so that insert molding etc. Even if resin burrs are generated near the mounting bracket when molding the case with resin, the burrs will collect in the concave grooves provided in the mounting portion, and as a result, the resin burrs will be attached to the mounting bracket. Top side and opponent Since it does not enter between the main body of the rottle body and the strength of fixing the rotational position sensor to the main body of the mating throttle body as in the conventional case, the mounting angle of the rotational position sensor does not deviate. It has.

According to a second aspect of the present invention, a retaining means is provided on the outer side surface of the mounting bracket of the first aspect and on the inner side surface of the through hole in the mounting portion. Since the outer surface and the inner surface of the through hole in the mounting portion are provided with a release means, when the external position is applied to the mounting bracket to mount the rotational position sensor on the mating throttle body, the mounting bracket is moved from the mounting portion. The rotation position sensor does not come off, thereby having the effect that the rotational position sensor can be securely attached to the mating throttle body.

According to a third aspect of the present invention, the mounting bracket according to the second aspect is provided with a concave portion or a convex portion on an outer surface and a convex portion or a concave portion on an inner surface of a through hole in the mounting portion. The retaining means is formed by fitting the convex part of the through-hole to the concave part of the fitting, or by fitting the concave part of the through-hole to the convex part of the fitting. Since a concave portion or a convex portion is provided on the side surface and a convex portion or a concave portion is provided on the inner side surface of the through hole in the mounting portion, a resin case provided with the concave portion or the convex portion provided with the mounting bracket in a mold is provided. Can be formed on the inner surface of the through-hole in the mounting portion by simply molding the
This has the effect that the retaining means can be easily formed.

According to a fourth aspect of the present invention, a large-diameter portion is provided on one or both of the upper and lower portions of the mounting bracket according to the second aspect, and the large-diameter portion is provided on the upper and lower surfaces of the mounting portion. According to this configuration, a large diameter portion is provided on one or both of the upper and lower portions of the mounting bracket, and the large diameter portion is provided. The large diameter portion contacts one or both of the upper surface and the lower surface of the mounting portion because the retaining portion is configured by contacting the mounting portion with one or both of the upper surface and the lower surface of the mounting portion. Therefore, since the mounting bracket does not move toward the side opposite to the side where the large-diameter portion is provided, the rotation position sensor can be more firmly attached to the mating throttle body. Cormorant is expected to have an effect.

According to a fifth aspect of the present invention, a screw-shaped concave portion is provided on an outer surface of the mounting bracket of the second aspect, and a screw-shaped convex portion is provided on an inner surface of a through hole in the mounting portion. A screw-shaped convex portion in a through-hole of the mounting portion is fitted into the screw-shaped concave portion of the mounting bracket, and a formed portion and a non-formed portion of the screw-shaped concave portion are provided on an outer surface of the mounting bracket, and a retaining means is provided. According to this configuration, according to this configuration, the screw-shaped concave portion of the mounting part is fitted with the screw-shaped convex part of the through hole of the mounting part, and the screw-shaped concave part is formed on the outer surface of the mounting part. And the non-formed portion is provided to constitute the retaining means, so that when the mounting bracket tries to rotate in the through hole, the screw-shaped recess in the mounting bracket is Will be convex portion screw-shaped abuts the through-hole of the mounting portion forming portion, thereby, those having the effect of being able to prevent rotation of the mounting bracket.

According to a sixth aspect of the present invention, in the mounting bracket according to the second aspect, a concave / convex portion is provided on the outer surface by knurling to form a retaining means. Since it is easy to provide an uneven portion on the outer side surface of the mounting bracket, there is an effect that the retaining means can be easily formed.

Hereinafter, a rotational position sensor according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view of a rotation position sensor according to an embodiment of the present invention, FIG. 2 is a top view showing a state where a cover of the rotation position sensor is removed, and FIG. FIG. 4 is a side sectional view of a case mounting portion in the rotation position sensor.

1 to 4, reference numeral 21 denotes a bottomed cylindrical case formed of a synthetic resin having excellent heat resistance and mechanical strength such as polybutylene terephthalate mixed with glass fibers. Book connector terminal 2
2 is inserted by insert molding, and the connector terminal 22 has one end exposed inside the case 21 and the other end provided on a part of the outer peripheral surface of the case 21 so as to project outward. It protrudes into the part 23. A part of the outer peripheral surface of the case 21 is provided with a pair of mounting portions 25 at opposing positions, and a through hole 2 is provided substantially at the center of the mounting portion 25 from the upper surface to the lower surface.
6 are provided. As shown in FIG. 4, a mounting bracket 27 is mounted on the inner surface of the through hole 26 in the mounting portion 25 of the case 21.
A concave groove 28 is provided in the mounting portion 25 at a position around the end on the outer surface of the mounting member 25. Further, a concave portion 27a is provided on the outer side surface of the mounting bracket 27, and a convex portion 25a is provided on the inner side surface of the through hole 26 of the mounting portion 25. The convex portion 25a of the through hole 26 is provided in the concave portion 27a of the mounting bracket 27. Mated. Reference numeral 30 denotes a resistor base made of a resin film such as a polyimide film. The resistor base 30 is disposed so as to contact the inner surface of the case 21. An electrode 31 made of a mixture of silver and a phenol resin is provided on a surface of the resistor base 30 which does not contact the inner surface of the case 21.
1 is in contact with one end of the connector terminal 22.
Further, a resistance pattern 32 made of a mixture of carbon and a polyimide resin is provided in a longitudinal direction on a surface of the resistor base 30 not in contact with the inner surface of the case 21, and the resistance pattern 32 is electrically connected to the electrode 31. Connected. Reference numeral 33 denotes a metal leaf spring bent in a V-shape. The leaf spring 33 is inserted from the opening side of the case 21 and connects the electrode 31 of the resistor body 30 to the connector. The two terminals are electrically connected by being pressed against one end of the terminal 22. Reference numeral 34 denotes a cylindrical rotor made of a synthetic resin such as polybutylene terephthalate mixed with glass fibers. The rotor 34 is rotatably housed in the case 21 and a brush 35 is provided on an outer surface of the rotor 34. And the brush 35 is connected to the resistance pattern 32 of the resistor body 30.
And sliding contact. A hole 4 is provided inside the rotor 34.
0 is provided, and a mating rotary shaft (not shown) is inserted into the hole 40. Reference numeral 41 denotes a cover made of resin. The cover 41 closes an opening in the case 21 and has an insertion hole 42 provided substantially at the center thereof. A mating rotary shaft (not shown) is inserted into the insertion hole 42. It is to let.

Next, a method of assembling the rotational position sensor having the above-described structure according to the embodiment of the present invention will be described.

First, after three connector terminals 22 and mounting fittings 27 are installed in a molding die (not shown), polybutylene terephthalate melted at about 200 ° C. is placed in the molding die (not shown). The case 21 is molded by pouring in a thermoplastic resin such as the like and cooling at room temperature.

In this case, the recess 2 is formed on the outer surface of the mounting bracket 27.
7a and through holes 26 in the mounting portion 25.
Since the convex portion 25a is provided on the inner side surface of the mounting portion 25, the mounting case 27 provided with the concave portion 27a is set in a mold, and then the resin case 21 is integrally molded. A convex portion 25a can be formed on the inner surface,
This has the effect that the retaining means can be easily formed.

Next, after a resistor paste (not shown) containing a binder resin such as polyimide is printed on a film-shaped resistor substrate 30 made of a resin such as polyimide cut to a width of about 70 to 120 mm. , About 180 ° C
Baking at about 270 ° C. for about 1 to 120 minutes, the resistance pattern 3
2 is printed on the resistor substrate 30.

Next, a silver paste (not shown) containing a binder resin such as polyimide is printed on the resistor substrate 30 on which the resistor pattern 32 is provided.
The electrode 31 is baked at 0 ° C. for about 1 to 120 minutes, and the electrode 31 is baked on the resistor substrate 30.

Next, the resistor base 30 is inserted from the opening side of the case 21 so as to be in contact with the inner surface of the case 21 so that the electrode 31 is electrically connected to one end of the connector terminal 22.

Next, the leaf spring 33 is inserted from the opening side of the case 21, and the electrode 31 on the resistor base 30 is pressed against one end of the connector terminal 22.

Next, from the opening side of the case 21 in which the resistor base 30 and the leaf spring 33 are provided, the rotor 34 to which the brush 35 is fixed in advance is moved by the brush 35 against the resistance pattern 32 of the resistor base 30. Insert so that it touches.

Next, the opening of the case 21 is closed by mounting the cover 41 at the opening of the case 21.

Next, the operation of the rotational position sensor constructed and assembled as described above will be described.

A mating rotary shaft (not shown) near the internal combustion engine is inserted into a hole 40 provided inside the rotor 34 through an insertion hole 42 in the cover 41, and a mating rotary shaft (not shown) is inserted. Is rotated, the rotor 34 rotates in synchronization with the rotation of the counterpart rotating shaft (not shown), and the brush 35 attached to the rotor 34 determines the contact position of the resistor base 30 with the resistance pattern 32. By changing the output voltage, an output voltage corresponding to the contact position can be obtained at the connector terminal 22, and the amount of fuel injected into the engine of a car or the like can be controlled by using the fluctuation of the output voltage as a signal. is there.

Here, considering the case where the rotational position sensor is attached to the mating throttle body (not shown), the rotational position sensor according to the embodiment of the present invention is provided in a resin case 21. A pair of mounting parts 2
The mounting bracket 27 is installed on the inner side surface of the through hole 26 in FIG. 5 and the concave portion 28 is provided in the mounting portion 25 at a position around the end on the outer side surface of the mounting bracket 27. Even when resin burrs are generated in the vicinity of the mounting bracket 27 when the case 21 is formed of resin, the burrs are accumulated in the concave grooves 28 provided in the mounting portion 25, whereby the resin burrs are formed. Does not enter between the upper surface of the mounting bracket 27 and the mating throttle body main body (not shown), so that the strength for fixing the rotational position sensor to the mating throttle body main body (not shown) as in the related art is increased. When the rotational position sensor is degraded and the rotational position sensor is attached to the mating throttle body (not shown), the rotational angle sensor is not loosened and the mounting angle is not shifted. Those having an effect of being able to provide a stable rotational position sensor characteristics.

In the rotation position sensor according to the embodiment of the present invention, a concave portion 27a is provided on the outer surface of the mounting member 27, and a convex portion 25a is provided on the inner surface of the through hole 26 of the mounting portion 25. The projection 25a of the through-hole 26 is fitted into the recess 27a of the mounting bracket 27. However, as shown in FIG.
5, a concave portion 37 is provided on the inner side surface of the through hole 26, and the concave portion 37 of the through hole 26 is fitted to the convex portion 36 of the mounting bracket 27. Have

In the rotation position sensor according to the embodiment of the present invention, a concave portion 27a is provided on the outer surface of the mounting member 27 and the through hole 2 in the mounting portion 25 is provided.
6, a convex portion 25a is provided on the inner surface of the mounting bracket 27, and the convex portion 25a of the through hole 26 is fitted into the concave portion 27a of the mounting bracket 27. However, as shown in FIG. The large diameter portion 38 is provided.
May come into contact with a concave groove 28 provided on the upper surface of the mounting portion 25 to constitute a retaining means. According to this configuration,
Since the large-diameter portion 38 is provided at the upper portion of the mounting bracket 27 and the large-diameter portion 38 contacts the concave groove 28 provided on the upper surface of the mounting portion 25 to constitute a retaining means, the large-diameter portion 38 is formed. By contacting the concave groove 28 provided on the upper surface of the mounting portion 25, the mounting bracket 27 does not move toward the side opposite to the side where the large-diameter portion 38 is provided. This has the effect that it can be more firmly attached to the side throttle body main body.

In the rotation position sensor according to the embodiment of the present invention, a concave portion 27a is provided on the outer surface of the mounting member 27, and a convex portion 25a is provided on the inner surface of the through hole 26 of the mounting portion 25. The mounting bracket 2
7, the projection 25a in the through hole 26
7, a screw-shaped recess 39 is provided on the outer surface of the mounting bracket 27, and a screw-shaped projection 44 is provided on the inner surface of the through hole 26 in the mounting portion 25, as shown in FIG. The screw-shaped concave portion 39 of the mounting member 27 is fitted with the screw-shaped convex portion 44 of the through-hole 26 of the mounting portion 25, and the screw-shaped concave portion 39 is formed on the outer surface of the mounting member 27. And the unformed portion 46 may be provided to constitute the retaining means. According to this configuration, the screw-shaped convex portion 44 in the through hole 26 of the mounting portion 25 is inserted into the screw-shaped concave portion 39 of the mounting bracket 27. And a formed portion 45 and an unformed portion 46 of the screw-shaped concave portion 39 are provided on the outer surface of the mounting bracket 27 to provide a retaining means. Since the forms, the mounting bracket 27 attempts to rotate in the through-hole 26, through the mounting portion 25 to the non-formation portion 46 of the recess 39 in the mounting bracket 27 hole 2
6 comes into contact with the screw-shaped convex portion 44, thereby preventing the rotation of the mounting bracket, so that the mounting angle of the rotation position sensor is not shifted and the screw-shaped projection 44 is screwed to the mounting bracket 27. Recess 3
9 is easy to form, and as a result, there is an effect that a rotational position sensor having stable output characteristics can be easily provided.

Further, in the rotation position sensor according to the embodiment of the present invention, a concave portion 27a is provided on the outer surface of the mounting member 27, and a convex portion 25a is provided on the inner surface of the through hole 26 of the mounting portion 25. Although the projections 25a of the through holes 26 are fitted into the recesses 27a of the mounting bracket 27, as shown in FIG.
3 may be provided to constitute the retaining means. According to this configuration, it is easy to provide the concave and convex portions 43 on the outer surface of the mounting bracket 27 by knurling. It has the effect that it can be formed.

Further, in the rotation position sensor according to the embodiment of the present invention, a large-diameter portion 38 is provided at an upper portion of the mounting bracket 27, and the large-diameter portion 38 is attached to the mounting portion 25.
The retaining means is constituted by contacting the concave groove 28 provided on the upper surface of the mounting member 27. However, a large diameter portion is provided at both the lower portion and the upper and lower portions of the mounting bracket 27, and this large diameter portion is attached to the lower surface of the mounting portion 25. Alternatively, the retaining means may be configured to be in contact with both the upper and lower surfaces, and this configuration has the same effect as the above-described embodiment of the present invention.

[0039]

As described above, in the rotational position sensor of the present invention, one end of the connector terminal is disposed inside and the other end is provided in the connector projecting outward, and the terminal protrudes outward from the outer surface. A bottomed cylindrical resin case provided with a pair of mounting portions having through holes so as to make contact with the inner surface of the case, and an end of a surface not in contact with the inner surface of the case And a film-shaped resistor base provided with a resistor pattern electrically connected to the electrode, and an electrode of the resistor base which is inserted from the opening side of the case and is connected to the case. A leaf spring that is pressed into contact with one end of the connector terminal to electrically connect the two to the inside of the connector terminal; and a brush that is rotatably housed inside the case and slidably contacts the resistance pattern of the resistor base. Or A pair of mounting portions provided on the case, the rotor including a rotor coupled to the counterpart rotary shaft, and a cover having a through hole into which the counterpart rotary shaft is inserted substantially at the center while closing the opening of the case; The mounting bracket is installed on the inner side surface of the through hole, and the mounting portion is provided with a concave groove located around the end of the outer side surface of the mounting bracket. According to this configuration, a resin case is provided. The mounting bracket is installed on the inner side surface of the through hole in the pair of mounting portions provided in the above, and a concave groove is provided in the mounting portion located around the end on the outer side surface of the mounting portion, so that insert molding etc. Even if resin burrs are generated near the mounting bracket when molding the case with resin, the burrs will collect in the concave grooves provided in the mounting portion, and as a result, the resin burrs will be attached to the mounting bracket. Top side and opponent Since it does not enter between the rotor body and the rotary body, the strength of fixing the rotational position sensor to the mating throttle body as in the past has deteriorated, and it will loosen when attaching the rotational position sensor to the mating throttle body. The mounting angle of the position sensor does not deviate, and as a result, a rotational position sensor having stable output characteristics can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a rotation position sensor according to an embodiment of the present invention.

FIG. 2 is a top view showing a state where a cover of the rotation position sensor is removed.

FIG. 3 is a side sectional view of the rotation position sensor.

FIG. 4 is a side sectional view of a mounting portion of a case in the rotation position sensor.

FIG. 5 is a side sectional view of a case mounting portion in a rotational position sensor according to another embodiment of the present invention.

FIG. 6 is a side sectional view of a case mounting portion in a rotation position sensor according to another embodiment of the present invention.

FIG. 7 is a side sectional view of a case mounting portion in a rotational position sensor according to another embodiment of the present invention.

FIG. 8 is a side sectional view of a case mounting portion in a rotational position sensor according to another embodiment of the present invention.

FIG. 9 is a top view showing a state where a cover of a conventional rotation position sensor is removed.

FIG. 10 is a side sectional view of a conventional rotation position sensor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Case 22 Connector terminal 23 Connector part 25 Attachment part 25a, 36, 44 Convex part 26 Through hole 27 Attachment fitting 27a, 37, 39 Depression 28 Depression groove 30 Resistor base 31 Electrode 32 Resistance pattern 33 Leaf spring 34 Rotor 35 Brush 38 Large diameter part 40 hole 41 cover 42 insertion hole 43 uneven part

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor ▲ Takeshi Shima 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term (reference) 2F063 AA35 BA06 BA30 CA40 DA02 DB07 DD02 FA01 FA17 FA18 FA20 KA01 KA05 ZA01 2F077 CC02 EE02 VV02 5E030 BA03 CA05 CB01 CC02 CC11 FB06

Claims (6)

[Claims] 1. A connector terminal, wherein one end of a connector terminal is disposed inside and the other end is provided in a connector part projecting outward.
And a bottomed cylindrical resin case provided with a pair of mounting portions having through holes so as to protrude outward from the outer surface, and provided so as to abut on an inner surface of the case, and An electrode is provided at an end of a surface that does not abut against the side surface, and a film-shaped resistor base provided with a resistor pattern electrically connected to the electrode, and the resistor is inserted from the opening side of the case and A leaf spring that presses an electrode of a resistor body to one end of the connector terminal inside the case to electrically connect the two to each other, and a rotatable housing that is rotatably housed inside the case and is connected to the resistor body. A rotor provided with a brush that is in sliding contact with the resistance pattern and coupled to the counterpart rotary shaft; and a cover that closes an opening of the case and has an insertion hole at substantially the center where the counterpart rotary shaft is inserted. , With installing a mounting bracket to the inner surface of the through-holes in the pair of mounting portions provided on the serial case,
A rotational position sensor having a concave groove in the mounting portion, which is located around an end on the outer surface of the mounting bracket. 2. A retainer is provided on an outer surface of the mounting bracket and on an inner surface of the through hole in the mounting portion.
The rotational position sensor as described in the above. 3. A concave portion or a convex portion is provided on the outer surface of the mounting member, and a convex portion or a concave portion is provided on the inner surface of the through hole in the mounting portion, and the convex portion of the through hole is fitted into the concave portion of the mounting member. 3. The rotation position sensor according to claim 2, wherein a retaining portion is formed by fitting a concave portion of the through hole into a convex portion of the mounting bracket. 4. A large-diameter portion is provided on one or both of an upper portion and a lower portion of a mounting bracket, and the large-diameter portion is brought into contact with one or both of an upper surface and a lower surface of the mounting portion to prevent the mounting portion from falling off. 3. The rotational position sensor according to claim 2, wherein said rotational position sensor comprises means. 5. A screw-shaped concave portion is provided on an outer surface of the mounting bracket, and a screw-shaped convex portion is provided on an inner surface of the through hole in the mounting portion. 3. The rotation position sensor according to claim 2, wherein a screw-shaped convex portion is fitted, and a portion where a screw-shaped concave portion is formed and a portion where no screw-shaped concave portion is formed are provided on an outer surface of the mounting bracket. 6. The rotation position sensor according to claim 2, wherein a concave / convex portion is provided by knurling on an outer surface of the mounting bracket to form a retaining means.