KR100885675B1 - Position sensing device for rotating body and electronic accelerator pedal using the same - Google Patents

Abstract

In order to improve the assembly and productivity and to share the parts, the case, a rotating lever exposed to the outside of the case and a rotating pin of the rotating body is inserted, and rotatably installed inside the case A sensing member having an assembly hole formed at one side thereof, an elastic member installed inside the case and always applying a force in a direction in which the sensing member is home, and installed inside the case to sense a rotation angle of the sensing member It provides a position detection device for a rotating body comprising a position sensor for converting into a conventional signal.

Description

Position Sensor for Body of Rotation and Electronic Accelerator Using of The Same

The present invention relates to a position sensing device for a rotating body and an electronic accelerator pedal using the same, and more particularly, a position sensing device for a rotating body which can be easily combined with an application object and improves assembling, and which can be used for parts. It relates to the electric accelerator pedal used.

In general, the internal combustion engine used in automobiles, ships, aircrafts, etc., the output is determined according to the opening and closing amount of the throttle of the carburetor, in the case of a car, the opening and closing amount of the throttle is adjusted according to the degree of the driver's pedaling of the accelerator.

In the above, the accelerator of the automobile mainly used the pedal and the throttle connected to the cable, and the majority of the methods of controlling the opening and closing amount of the throttle according to the amount of pulling the cable, this mechanical method is difficult to control the throttle fine for a long time Phenomena such as cable wear and sagging make it difficult to open and close the throttle and the structure is complicated.

Therefore, conventionally, an electronic accelerator pedal that detects the position of the pedal using a position sensor and adjusts the opening / closing amount of the throttle according to the detected signal has been very useful.

For example, a conventional electronic accelerator pedal is a support frame which is supported on a vehicle, a pedal having one end rotatably coupled to the support frame using a hinge shaft and a footrest installed at the other end thereof, It consists of a spring that always applies force to the pedal in the opposite direction and a position sensor for sensing the position of the pedal.

In the conventional accelerator pedal configured as described above, since each part is manufactured and then assembled on the same assembly line to be manufactured as a finished product and constitutes one assembly, the assembly process is complicated and there is a limit in improving productivity.

And since each part is not useful alone, it is difficult to share the parts, and in case of repair, maintenance, replacement, etc., it is difficult to disassemble and assemble the parts, and the position sensor can be very sensitive. If it is not circulated alone, a problem arises that the whole must be exchanged.

In addition, since each part is manufactured separately by various manufacturers and then assembled together, it is often released as a finished product, so that defective products such as defects are likely to occur due to errors or deviations during the assembly process.

In addition, the conventional accelerator pedal is generally manufactured in a variety of sizes and structures, etc., depending on the type and manufacturer of the vehicle, and the mounting structure of the position sensor is often determined in particular in the process of manufacturing the support frame, Since the mounting structure of the position sensor is also very diverse, it is difficult to share parts.

Furthermore, the failure rate can be lowered only when the performance test of the finished product composed by assembling the parts manufactured by various manufacturers is performed, but the manufacturer of each part has such a difficult performance test, so the reliability of the product may be lowered.

The present invention has been made in view of the above, it is possible to use easily combined after each assembly is assembled through a separate assembly process, it is possible to improve the assembly and overcome the limitations of productivity, It is an object of the present invention to provide a position sensing device for a rotating body and an electronic accelerator pedal using the same, which have a common utility value and enable common use of components and increase reliability.

The position detection device for a rotating body proposed by the present invention includes a case, a rotating lever exposed to the outside of the case and inserted with a rotating pin of the rotating body, and rotatably installed inside the case. A sensing member having an assembly hole formed at one side thereof, an elastic member installed inside the case and always exerting a force in a direction in which the sensing member is home, and a rotation angle of the sensing member installed inside the case. It includes a position sensor for sensing and converting into an electrical signal.

The case is formed in a cylindrical shape with one end face opened, and one side is provided with a housing in which a connector part is electrically connected to the position sensor, and is installed to block one open end face of the housing, and the sensing member is rotatable. It comprises a cover plate is formed through holes to be assembled.

In the cover plate is a flat plate portion formed so as to cross the one open end of the housing , the boss portion is formed to form the through hole along the central axis line and the end portion protrudes to both sides of the flat plate, respectively; And a reinforcing ring portion formed on one side of the flat plate portion and protruding in a ring shape around one end portion of the boss portion, and a reinforcing rib connecting one end portion of the reinforcing ring portion and the boss portion.

The rotating lever has a shaft portion assembled in the assembling hole of the sensing member, and is formed to be bent and extended at an angle from the end of the shaft portion, and the end portion of the rotating lever is bifurcated so that the pivot pin of the rotating body is inserted therein. And a pair of reinforcing protrusions formed at an end portion of the cam portion extending from the cam portion.

In the shaft portion of the rotary lever at least one engaging groove is formed long in the longitudinal direction at regular intervals along the circumference, the assembling hole of the sensing member is formed to protrude the engaging projection to the engaging groove.

The cam groove formed in the cam portion of the rotary lever is formed in a substantially "U" shape.

The position sensor may include at least one resistance pattern printed at regular intervals, installed in the housing of the case, and electrically connected to the connector, and installed at regular intervals on the sensing member, And at least one sweeper that is installed at a corresponding position and contacts the resistance pattern as the sensing member rotates.

In the case, the case is formed in a cylindrical shape with both ends opened, and a partition plate portion for partitioning the inner space on both sides is formed at the center portion, and a housing portion formed with a connector portion formed at one side, and intercepts one open end surface of the housing. And a support plate provided with a through hole on which the sensing member is rotatably assembled, and a support plate installed to block the other open end of the housing, wherein the position sensor is printed with a magnetoresistive element pattern. A substrate electrically connected to the connector portion and installed between the partition plate portion and the support plate of the housing, and formed in a plate shape and installed between the partition plate and the cover plate of the housing and facing the magnetoresistive element pattern of the substrate. Assembled rotatable integrally with the end face of the member It is also possible to include a magnetic member formed at one or more places along the circumference.

In addition, the electronic accelerator pedal proposed by the present invention is a support frame fixed to an automobile and a coupling part is formed, a pedal rotatably coupled to the support frame using a hinge shaft, and a footrest is installed at an end thereof, and an opposite side of the footrest of the pedal. Rotating pin is integrally rotatably installed at the end, the spring is always applied to the pedal in the direction opposite to the rotation direction, and a position sensing device for the rotating body.

The position sensor for the rotating body is detachably coupled to the coupling portion of the support frame is installed, the rotation lever is installed exposed to the outside of the case and the rotation pin is inserted, and rotates inside the case A sensing member which is installed as possible and has an assembly hole in which one side of the rotary lever is assembled, an elastic member which is installed inside the case and always exerts a force in a direction in which the sensing member is returned, and is installed in the case It comprises a position sensor for detecting the rotation angle of the sensing member to convert into an electrical signal.

According to the position sensing device for a rotating body and the electronic accelerator pedal using the same according to the present invention, it is possible to easily attach and detach after being assembled through a separate assembly process from other components, thereby improving the assemblability and overcoming the limitation of productivity. It is possible.

In addition, since the number of parts is reduced, defective products such as defects are less likely to occur due to errors or deviations during the assembly process, and are easily detachable, disassembled, and assembled in the case of repair, maintenance, and replacement.

Furthermore, since it is manufactured so as to be effective alone, it is close to a finished product, and thus performance tests can be performed, and thus the parts can be shared, and the reliability of the product can be improved.

According to the position sensing device for a rotating body and the electronic accelerator pedal using the same according to the present invention, the support strength of the rotating lever and the sensing member is improved by strengthening the strength around the through hole of the cover plate constituting the case, thereby improving the life of the product. Extension is possible.

In addition, by configuring the position sensor in a non-contact manner, noise, abrasion, etc. due to contact are prevented, so that accurate detection performance is maintained for a long time and durability is greatly improved.

In addition, in the case of the non-contact method, the board is isolated and installed in a space separately provided in the housing of the case, such as moisture, dust, foreign matter, and powder caused by abrasion of parts generated in the space where the magnetic member of the housing is installed. Effective isolation from harmfully harmful elements can be prevented from malfunctioning and accurate detection can be maintained for a long time.

According to the position sensing device for a rotating body and the electronic accelerator pedal using the same according to the present invention, since the reinforcement protrusion is formed in the cam portion of the rotating lever, the strength of the portion where the pivot pin is inserted is improved, so that the cam portion is deformed or damaged. Rotating pin and bonding force are well maintained.

One embodiment of the position sensing device for a rotating body according to the present invention, as shown in Figures 1 to 3, the case 10, the rotating lever 30 is exposed to the outside of the case 10 and installed; A sensing member 40 installed inside the case 10 and rotating together with the rotary lever 30, an elastic member 50 which always applies a force in a direction in which the sensing member 40 is returned, and the sensing It comprises a position sensor 60 for detecting the rotation angle of the member 40 and converts it to an electrical signal.

The case 10 includes a housing 11 having a cylindrical shape with one end surface opened, and a cover plate 20 having a plate shape and detachably assembled to the housing 11.

At least one through hole 14 through which a bolt or the like penetrates is formed at an edge of the housing 11 at regular intervals.

In addition, one side of the housing 11 is provided with a connector portion 12 is provided with a connecting pin 13 to be electrically connected to the position sensor 60.

As shown in FIG. 4, the cover plate 20 penetrates the open one end surface of the housing 11 and is installed to penetrate through the flat plate 21 and the sensing member. A boss portion 23 having a through hole 22 so as to be rotatably assembled, and end portions protruding from both sides of the flat plate portion 21, and one side of the flat plate portion 21. A plurality of reinforcing ring portions 24 formed at and formed to protrude in a ring shape around one end portion of the boss portion 23 and connecting one end portion of the reinforcing ring portion 24 and the boss portion 23. It comprises a reinforcing bar 25.

As shown in FIGS. 4 to 6, the rotary lever 30 is formed to extend and bend at a right angle at the end of the shaft portion 32 and the shaft portion 32 assembled to the sensing member 40. The end portion is divided into two, the cam portion 34 is formed in the cam groove 36 of the substantially "U" shape, and a pair of reinforcement projections 35 formed at the end portion extending from the cam portion 34 )

The rotating pin 3 of the rotating body 2 is inserted into the cam groove 36.

When the reinforcement protrusion part 35 is formed in the cam part 34 of the rotary lever 30, the strength of the part into which the pivot pin 3 is inserted is improved, so that the cam part 34 is rotated without being deformed or damaged. The engagement force with the pin 3 is well maintained.

The sensing member 40 is formed in a substantially cylindrical shape and is rotatably assembled to the boss portion 23 of the cover plate 20, and the assembly yoke 42 to which the shaft portion 32 of the rotary lever 30 is assembled. ) Is formed.

As shown in FIG. 7, in the shaft portion 32 of the rotary lever 30, a plurality of locking grooves 33 are formed to extend in the longitudinal direction at regular intervals along the circumference thereof, and the assembling holes of the sensing member 40 are provided. In the 42, a plurality of locking protrusions 43 corresponding to the locking grooves 33 may protrude.

The catching grooves 32 and the catching protrusions 43 are engaged with each other and are formed about 1 to 6 at regular intervals along the circumference.

The locking groove 32 and the locking protrusion 43 is not limited to only one to six, but may be formed in various numbers.

Although not shown in the drawing, in the shaft portion 32 of the rotary lever 30, a plurality of the engaging projections 43 are formed to protrude in the longitudinal direction at regular intervals along the circumference, the assembly of the sensing member 40 The hole 42 may be formed with a plurality of locking grooves 33 corresponding to the locking protrusion 43.

The elastic member 50 is made of a metal wire and is formed in a cylindrical shape spirally wound along the circumference of the sensing member 40, a pair of support portions 51 formed at both ends bent vertically, ( 52) is formed.

The support part 51 positioned on one side of the pair of support parts 51 and 52 is supported by the cover plate 20 of the case 10 and the support part 52 formed at the other end thereof detects the sensing part. It is caught and supported by the member 40.

As shown in FIG. 8, the position sensor 60 is provided with a substrate 61 on which a plurality of resistance patterns 62 are printed at a predetermined interval, and is installed at a predetermined interval on the sensing member 40. And at least one sweeper 64 which is installed at a position corresponding to the resistance pattern 62 of 61 and contacts the resistance pattern 62 as the sensing member 40 rotates.

The substrate 61 is fixed to the housing 11 of the case 10 and electrically connected to the connecting pin 13 of the connector part 12.

The resistance patterns 62 may be formed in a substantially arc shape and may be formed in one or two or more at regular intervals.

And another embodiment of the position sensing device for a rotating body according to the present invention as shown in Figure 9 to 11, the case 70 is a housing 71, the cover plate 80 and the backing plate 90 The position sensor 100 includes a substrate 102 on which the magnetoresistive element pattern 102 is printed, and a magnetic force member 104.

The housing 71 is made of a transparent or semi-transparent synthetic resin and has a cylindrical shape in which both ends are opened.

In the central portion of the housing 71 is formed partition plate 72 for partitioning the inner space on both sides. In addition, a connector portion 74 having a connection pin 73 electrically connected to the substrate 101 is installed at one side of the housing 71. In addition, a plurality of coupling holes 76 through which bolts or the like penetrate the corners of the housing 71 are formed at regular intervals.

The cover plate 80 is detachably assembled to one open end surface of the housing 71, and a through hole 81 is formed in which the sensing member 40 is rotatably assembled.

The cover plate 80 may be implemented in the same configuration as in the above-described embodiment.

That is, the cover plate 80 is formed to intersect one side of the opening of the housing 71, the plate portion 81 is installed, and the sensing member 40 is rotatable through the plate portion 81 The through hole 82 is formed so as to be assembled so that the boss portion 83 is formed so that the end portion protrudes on both sides of the flat plate 81, and the boss portion formed on one side of the flat plate 81 Reinforcing ring portion 84 protruding in a ring shape around one end of the 83, and a plurality of reinforcing ribs 85 connecting one end of the reinforcing ring portion 84 and the boss portion 83 It is made to include.

The support plate 90 is detachably assembled to the other open end of the housing 71.

In the above, the support plate 90 may be formed so as to intersect the other open end surface of the housing 71, and the support part 92 may be formed to support and support the substrate 101.

The substrate 101 is electrically connected to the connector portion 74 and is installed between the partition plate portion 72 of the housing 71 and the support plate 90.

The magnetic force member 104 is formed in a plate shape, and a substantially fan-shaped magnetic force piece 105 is formed at one or more places along the circumference.

The magnetic force member 104 is installed between the partition plate portion 72 and the cover plate 80 of the housing 71 and faces the magnetoresistive element pattern 102 of the substrate 101. It is assembled rotatably in one end of the).

Also in the above-described other embodiments, the present invention can be implemented in the same configuration as the above-described embodiment except for the above-described configuration, and thus detailed description thereof will be omitted.

Furthermore, an embodiment of the electronic accelerator pedal according to the present invention, as shown in Figure 12 and 13, the support frame 110, the pedal 114 rotatably coupled to the support frame 110, and the pedal It includes a rotating pin 116, a spring 118, and a position detecting device 8 for the rotating body installed on the 114.

The position sensing device 8 for the rotating body may be implemented in the same configuration as in one embodiment or the other embodiment of the position sensing device for the rotating body according to the present invention described above.

For example, the position detecting device 8 for the rotating body is installed to be detachably coupled to the support frame 110, and is installed exposed to the outside of the case 10 and the rotating pin The sensing member 40 having a rotating lever 30 into which the 116 is inserted and an assembly hole 41 rotatably installed inside the case 10 and to which one side of the rotating lever 30 is assembled. And an elastic member 50 installed inside the case 10 and always applying a force in a direction in which the sensing member 40 is in the original position, and installed inside the case 10 and of the sensing member 40. It comprises a position sensor 60 for detecting the rotation angle and converting it into an electrical signal.

The support frame 110 is fixed to the vehicle and the coupling portion 111 to which the case 10 is detachably coupled is formed at one side.

The pedal 114 is rotatably coupled to the support frame 110 by using a hinge shaft 112 and a footrest 115 is installed at one end thereof.

The pivot pin 116 is formed to rotate together with the pedal 114 at a position corresponding to the coupling portion 111.

The elastic member 118 is formed using a torsion coil spring or the like and is positioned around the hinge shaft 112 and installed to always apply a force in a direction opposite to the step of stepping on the pedal 114.

In the above, a preferred embodiment of the position sensing device for a rotating body and an electronic accelerator pedal using the same has been described, but the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention. It is possible to carry out by way of example, which also falls within the scope of the present invention.

1 is a perspective view showing an embodiment of a position detecting device for a rotating body according to the present invention.

Figure 2 is an exploded perspective view showing an embodiment of a position detecting device for a rotating body according to the present invention.

Figure 3 is a partial cross-sectional view showing an embodiment of the position sensing device for a rotating body according to the present invention.

Figure 4 is an exploded cross-sectional view showing a case in an embodiment of the position detecting device for a rotating body according to the present invention.

5 is an exploded perspective view illustrating a rotating lever and a sensing member in one embodiment of a position detecting device for a rotating body according to the present invention.

6 is an assembled cross-sectional view showing a rotating lever and a sensing member in one embodiment of a position detecting device for a rotating body according to the present invention.

7 is a front view showing an operating state of the rotary lever in one embodiment of the position detecting device for a rotating body according to the present invention.

8 is a plan view showing a position sensor in an embodiment of the position detecting device for a rotating body according to the present invention.

9 is an exploded perspective view showing another embodiment of the position detecting device for a rotating body according to the present invention.

10 is a partial cross-sectional view showing another embodiment of the position sensing device for a rotating body according to the present invention.

11 is a plan view showing a position sensor in another embodiment of the position detecting device for a rotating body according to the present invention.

12 is an exploded perspective view showing an embodiment of an electronic accelerator pedal using a position sensor for a rotating body according to the present invention.

13 is a partial cross-sectional view showing an embodiment of the electronic accelerator pedal using the position sensor for a rotating body according to the present invention.

Claims (13)

With the case, A rotating lever exposed to the outside of the case and inserted with a rotation pin of the rotating body; A sensing member rotatably installed inside the case and having an assembly hole for assembling one side of the rotary lever; An elastic member installed inside the case and always applying a force in a direction in which the sensing member is returned; A position sensor installed inside the case and detecting a rotation angle of the sensing member and converting the electrical signal into an electrical signal; The rotating lever has a shaft portion assembled in the assembling hole of the sensing member, and is formed to be bent and extended at an angle from the end of the shaft portion, and the end portion of the rotating lever is bifurcated so that the pivot pin of the rotating body is inserted therein. And a pair of reinforcing protrusions formed at an end portion of the cam portion, the cam portion being formed with a cam groove. The method according to claim 1, At least one locking groove is formed in the shaft portion of the rotary lever at a predetermined interval along the circumference in the longitudinal direction, Positioning device for a rotating body formed in the assembly hole of the sensing member protrudes the engaging projection is assembled to the locking groove. The method according to claim 1, At least one locking protrusion is formed on the shaft of the rotary lever at a predetermined interval along the circumference to protrude in the longitudinal direction. Positioning device for a rotating body is formed in the assembling hole of the sensing member the engaging groove is assembled with the engaging projection. The method according to any one of claims 1 to 3, Cam groove formed in the cam portion of the rotary lever is a position sensing device for a rotating body is formed in a "U" shape. The method according to claim 1, The case is formed in a cylindrical shape with one end face opened, and one side is provided with a housing in which a connector part is electrically connected to the position sensor, and is installed to block one open end face of the housing, and the sensing member is rotatable. A cover plate having a through hole formed thereon, The position sensor may include one or more resistance patterns printed on the substrate at regular intervals and fixed to the housing and electrically connected to the connector, and installed at regular intervals on the sensing member and corresponding to the resistance patterns on the substrate. And at least one sweeper which is installed at each position and contacts the resistance pattern as the sensing member rotates. The method according to claim 1, The housing is formed in a tubular shape with both ends opened, a partition plate portion for partitioning the inner space on both sides is formed in the center portion and one side is formed with a connector portion electrically connected to the position sensor, the housing of the housing A cover plate provided to block one opened end surface and having a through hole through which the sensing member is rotatably assembled, and a support plate installed to block the other open end surface of the housing; The position sensor is a substrate having a magnetoresistive element pattern printed thereon and electrically connected to the connector portion and installed between the partition plate portion and the support plate of the housing, and formed in a plate shape and installed between the partition plate and the cover plate of the housing. And a magnetic force member integrally rotatably assembled to an end surface of the sensing member facing the magnetoresistive element pattern of the substrate, and having a fan-shaped magnetic force piece formed at one or more locations along a circumference thereof. The method according to claim 6, The housing is a position detecting device for a rotating body is formed transparent or translucent. The method according to any one of claims 5 to 7, The cover plate of the case has a boss portion which forms the through hole and the flat part that is installed is formed so as to intercept the end face of the opening side of the housing, along the center axial line and formed to each end of the projecting each side of the flat panel portion And a reinforcing ring portion formed on one side of the flat plate portion and protruding in a ring shape around one end portion of the boss portion, and a reinforcing rib portion connecting one end portion of the reinforcing ring portion and the boss portion. Sensing device. A support frame fixed to a vehicle and having a coupling portion formed thereon, a pedal rotatably coupled to the support frame using a hinge shaft, and a footrest provided at an end thereof, and integrally rotatable at an end opposite to the footrest of the pedal. A rotation pin, a spring which always applies force to the pedal in a direction opposite to the rotation direction, and a position sensing device for the rotating body, The position sensor for the rotating body is detachably coupled to the coupling portion of the support frame is installed, the rotation lever is installed exposed to the outside of the case and the rotation pin is inserted, and rotates inside the case A sensing member which is installed to be capable of being installed and has an assembly hole for assembling one of the rotary levers, an elastic member which is installed inside the case and always exerts a force in a direction in which the sensing member is in the original position, and installed inside the case And a position sensor for detecting a rotation angle of the sensing member and converting the electrical signal into an electrical signal. The rotary lever is formed with one or more engaging grooves extending in the longitudinal direction at regular intervals along the circumference and being assembled to the assembling hole of the sensing member, and bent and extended at right angles at the end of the shaft portion to be formed and extended. One end portion is divided into two and comprises a cam portion is formed a cam groove into which the rotation pin is inserted, and a pair of reinforcement protrusions formed on the end portion extending from the cam portion, Electronic accelerator pedal is formed in the assembly hole of the sensing member protruding the engaging projection is assembled to the engaging groove. The method according to claim 9, The case is formed in a tubular shape with one end face opened and a connector part formed on one side thereof to be electrically connected to the position sensor, and installed to block one end face of the housing, and the sensing member is rotatably assembled. A cover plate on which a through hole is formed, The position sensor includes at least one resistance pattern printed at regular intervals and fixed to the inside of the housing and electrically connected to the connector, and installed at regular intervals on the sensing member and corresponding to the resistance pattern of the substrate. And at least one sweeper in contact with the resistance pattern as the sensing member rotates. The method according to claim 9, The housing is formed in a tubular shape with both ends opened, a partition plate portion for partitioning the inner space on both sides is formed in the center portion and one side is formed with a connector portion electrically connected to the position sensor, the housing of the housing A cover plate provided to block one opened end surface and having a through hole through which the sensing member is rotatably assembled, and a support plate installed to block the other open end surface of the housing; The position sensor is a substrate which is printed with a magnetoresistive element pattern and electrically connected to the connector portion, and is installed between the partition plate portion and the support plate of the housing, and has a plate shape and is installed between the partition plate portion and the cover plate of the housing. An electronic accelerator pedal including a magnetic member that is integrally rotatably assembled to an end surface of the sensing member facing the magnetoresistive element pattern of the substrate, and wherein a fan-shaped magnetic force piece is formed at one or more places along a circumference. The method according to claim 11, And the housing is transparent or translucent. The method according to any one of claims 10 to 12, The cover plate of the case is formed with a flat plate portion formed so as to block the open one side of the housing, and the boss portion formed to form the through hole along the center axis line and the end portions protrude to both sides of the flat plate, respectively. And a reinforcing ring part formed on one side of the flat plate part and protruding in a ring shape around one end of the boss part, and a reinforcing bar connecting one end of the reinforcing ring part and the boss part.

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