KR101181636B1 - Steering wheel switching unit - Google Patents

Abstract

The present invention includes a unit housing having a housing base, a lever movable block rotatably disposed in the unit housing, a lever switch movably disposed in the unit housing, and the housing base of the lever switch. And a switch portion for operating a signal applied to the vehicle, the switch detent portion being disposed in the lever movable block toward the housing base, and the switch detent portion. And a switch movable part which is always in contact with the switch, the switch movable part disposed to be movable by the switch detent part when the lever switch is rotated, and the switch movable part and a contact state when the switch movable part is disposed on the housing base. With formable switch fixture Provides a steering wheel switch unit for a vehicle.

Description

Steering wheel switch unit for vehicles {STEERING WHEEL SWITCHING UNIT}

The present invention relates to a steering wheel switch unit for a vehicle, and more particularly, to a steering wheel switch unit for a vehicle to realize a more durable and more concise and stable switching function.

Typically, a vehicle steering wheel assembly includes a steering wheel, a steering column, a steering roll connector assembly, a multifunction switch assembly, and the like. The steering wheel is for the driver to set the steering direction, the rotation of the steering wheel by the driver is transmitted to the wheel through the steering column to set the steering angle of the vehicle. In addition, a vehicle such as an automobile is required to function beyond various functions as a moving means as various convenient means for allowing a user to provide a more stable and comfortable driving state. Therefore, the vehicle is equipped with various convenience facilities and various switches for operating and controlling the same, and in consideration of the driver's operability, various switches tend to be concentrated in the steering unit.

For example, a steering wheel of a recently produced vehicle is provided with a window switch for opening and closing a window, a steering light switch for turning on / off a steering light, an audio switch for driving audio, a wiper switch for driving a wiper, and the like.

The multi-function switch assembly is equipped with lights, a gramper, a wiper, various audio devices, a vehicle window switch, and the like, which allows the driver to increase the operability of the various devices so that the front attention is not lost even during operation of the various devices. It is embodied as a button switch on top of it or as a lever switch on the side of the steering wheel. In addition, an airbag is installed at the top of the steering wheel to ensure driver safety.

In the case of such a vehicle steering wheel switch device, the assembly space is not sufficient due to the compactness of the device, thereby increasing the assembly time, thereby increasing the process cost. In addition, the possibility of malfunction due to wear should be eliminated through repeated operation.

However, according to the related art, the switch device including the lever switch on the steering wheel side implements a switching function through the operation of the slider contact when the lever switch is operated, so that wear, grease, or the like due to repetitive operation is reduced to dust and the like. There was a high probability of malfunction due to entanglement.

It is an object of the present invention to provide a steering wheel switch device for a vehicle having a structure capable of significantly reducing the possibility of wear, reducing the possibility of malfunction and improving reliability to achieve a clear switching operation even in repetitive operation.

The present invention for achieving the above object includes a unit housing having a housing base, a lever movable block rotatably disposed in the unit housing, a lever switch movably disposed in the unit housing; And a switch portion for operating a signal applied to the vehicle and operated by a rotational movement on a plane parallel to the housing base of the lever switch, wherein the switch portion: a switch detent portion disposed on the lever movable block toward the housing base And a switch movable part which is in constant contact with the switch detent part and is arranged to be movable by the switch detent part when the lever switch is rotated; In case of contact state with the switch moving part It provides a vehicle steering wheel switch unit including a possible switch fixing section.

In the vehicular steering wheel switch unit, the switch movable portion has a V shape, and the switch movable portion includes: a movable portion support portion supported by the housing base and a movable portion inclination arrangement with respect to the housing base from the movable portion support portion. And a movable portion contact portion extending from an end portion of the movable portion inclined portion and arranged to be in contact with the switch fixing portion.

In the vehicular steering wheel switch unit, the switch detent portion includes: a detent receiving portion formed toward the housing base toward the lower end of the lever movable block, and a detent elastic portion receiving one end of the detent receiving portion; And a detent block, one end of which is accommodated in the detent receiving part and elastically supported by the detent elastic part, and the other end of which is in contact with the switch movable part.

In the vehicle steering wheel switch unit, a base support seating recess for accommodating the movable part supporter may be disposed in the housing base.

In the vehicle steering wheel switch unit, the switch movable portion may include a movable portion elastic support portion extending toward the housing base.

In the vehicle steering wheel switch unit, the movable part elastic support part is formed to be punched from the movable part inclined part, and one end of the movable part elastic support part is connected to the movable part support part and the other end may be arranged to form a contact state with the housing base. have.

In the vehicle steering wheel switch unit, the movable portion elastic support portion may have an initial inclination angle inclined with respect to a plane parallel to the housing base.

The steering wheel switch unit for a vehicle according to the present invention having the configuration as described above has the following effects.

First, the steering wheel switch unit for a vehicle according to the present invention has a simple structure by implementing a detent function and a seesaw switching function perpendicular to a parallel plane of the housing vence through a switch detent part, a switch movable part, and a switch fixing part. Through this, stable and clear operation can be realized.

Secondly, the steering wheel switch unit for a vehicle according to the present invention can implement a detent function and a seesaw switching function and at the same time can provide excellent durability even for their repeated operation.

Third, the vehicle steering wheel switch unit according to the present invention can achieve a more stable three-stage seesaw movement through the switch movable portion having a predetermined movable portion elastic support.

Fourth, the steering wheel switch unit for a vehicle according to the present invention may be provided with a base support seating recess on one surface of the housing base to achieve a more stable operation of the switch mover, thereby clarifying the switch operation.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1 is a schematic perspective view of a vehicle steering wheel switch unit according to an embodiment of the present invention.
2 is a schematic partial exploded perspective view of a steering wheel switch unit for a vehicle according to an embodiment of the present invention.
3 is an enlarged detailed perspective view of a switch unit including a switch dent part, a switch movable part, and a switch fixing part of a vehicle steering wheel switch unit according to an exemplary embodiment of the present invention.
4 and 5 are schematic state diagrams showing the operation of the switch unit of the vehicle steering wheel switch unit according to an embodiment of the present invention.
6 is a schematic state diagram illustrating a modification for mounting the switch movable part of the steering wheel switch unit for a vehicle according to an embodiment of the present invention.
7 is a schematic perspective view showing a modification of the switch movable portion of the vehicle steering wheel switch unit according to an embodiment of the present invention.
8 is a schematic state diagram of a modification of the switch movable portion of the vehicle steering wheel switch unit according to an embodiment of the present invention.
9 is yet another state diagram of a modification of the switch movable portion of the vehicle steering wheel switch unit according to an embodiment of the present invention.

Hereinafter, a vehicle steering wheel switch unit will be described with reference to the drawings.

1 is a schematic perspective view of a vehicle steering wheel switch unit according to an embodiment of the present invention, Figure 2 is a schematic partial exploded perspective view of a vehicle steering wheel switch unit according to an embodiment of the present invention, FIG. 3 is a detailed enlarged perspective view of a switch part including a switch dedent part, a switch movable part, and a switch fixing part of a vehicle steering wheel switch unit according to an embodiment of the present invention, and FIGS. 4 and 5 are shown in FIG. A schematic state diagram showing the operation of the switch unit of the vehicle steering wheel switch unit according to an embodiment of the present invention is shown, Figure 6 is a modification for mounting the switch movable portion of the vehicle steering wheel switch unit according to an embodiment of the present invention A schematic state diagram is shown, which is shown in FIG. 7 according to an embodiment of the present invention. A schematic perspective view showing a modification of the switch movable portion of the vehicle steering wheel switch unit is shown, Figure 8 is a schematic state diagram of a modification of the switch movable portion of the vehicle steering wheel switch unit according to an embodiment of the present invention is shown 9 shows another state diagram of a modification of the switch movable part of the steering wheel switch unit for a vehicle according to the embodiment of the present invention.

The vehicle steering wheel switch unit 10 according to an embodiment of the present invention includes a unit housing 100, a lever switch 30, and a switch unit 300. The lever switch 30 and the switch unit 300 are provided. Are each movable in the unit housing 100 and the switch unit 300 is operated by the operation of the lever switch 30.

The unit housing 100 includes a housing body 110, a housing medium 120, and a housing base 130. The housing body 110, the housing medium 120, and the housing base 130 are fastened to each other to form an internal space. And other components are stably housed or movably disposed in the interior space.

A body through hole 111 is disposed at one end of the housing body 110, and the body through hole 111 has a structure in which a steering shaft (not shown) is connected to a steering wheel (not shown). On one side or both sides of the body 110, a body lever mounting portion 113 for mounting each lever switch 30 is disposed, the lever switch 30 through the body lever mounting portion 113 can be mounted to be movable. have.

The housing base 130 is disposed below the housing body 110 and fastened together with the housing body 110 to form an internal space. The housing base 130 may be implemented as an insert injection method without a separate printed circuit board, and may have a structure in which a predetermined circuit wiring is embedded, and the circuit wiring is connected to the connector pin (not shown) through the base connector 131. By drawing out this structure, it is possible to implement a structure that makes electrical communication with an external electric device.

The housing medium 120 is disposed between the housing body 110 and the housing base 130. One end of the housing medium 120 is connected to the housing body 110, and the other end of the housing medium 120 is connected to the housing base 120. 130). The housing medium 120 accommodates a lever movable block 200 that enables the movable movement of the lever switch 30 together with the housing body 110, and a lever movable block hinge disposed on the upper side of the lever movable block 200. 201 is engaged with a body movable block corresponding hinge (not shown) of the housing body 110. In addition, a lever movable block hinge (not shown) corresponding to the lever movable block hinge 201 at the upper end is disposed at the lower end of the lever movable block 200, and the lever movable block hinge (not shown) at the bottom is the housing medium 120. Rotation direction on a plane parallel to the housing base 130 by the lever movable block pivot guide 121 formed toward the lever movable block 200 of the vehicle). The switching function can be implemented.

One end of the lever switch 30 is attached to the unit housing so as to achieve a predetermined rotational motion or the like, and the lever switch 30 includes a lever switch body 31 and lever switch rotary knobs 33 and 35. do. A predetermined lever rotary shaft (not shown) or the like may be disposed inside the lever switch body 31 to implement a predetermined switching operation through a rotational movement through the lever switch rotary knob 33. In addition, a rotary switch (not shown) may be built in the lever switch body 31 to transmit an electrical signal generated when the other lever switch rotary knob 35 is rotated to the external electric device through the unit housing 100. have.

A lever movable block 200 is disposed at an end of the lever switch 30, which enables the hinge operation by the lever switch body 31 of the lever switch 30 and the lever switch body 31. ) To smoothly transmit the rotational motion to the inside of the unit housing 100 to transmit a driving force for implementing a predetermined switching function. The lever movable block 31 is connected to the plate cam 21 and the tension spring 23 to realize a predetermined cancellation function, so that the steering wheel after performing a function such as turning on a direction indicator light due to the rotation operation of the lever switch body 31 is performed. When the home position is returned to the home position, the rotation state such as turning on the direction indicator light through the lever switch 30 can be returned to the home position by performing a cancel function.

The switch unit 300 generates a change in the electrical signal by the rotational motion on a plane parallel to the housing base 130 of the lever switch 30, the lever switch 30 of the present invention is a switching signal, for example Apply the turn signal of the vehicle. The switch unit 300 includes a switch detent unit 320 and a switch contact unit 350. The switch contact unit 350 includes a switch mover 330 and a switch fixing unit 340, and the switch mover 330. ) And a change in a predetermined electrical signal by intermittent contact between the switch fixing part 340.

The switch detent part 320 is disposed toward the housing base 130 in the lever movable block 200 disposed at the end of the lever switch 30, and is disposed at the lower end of the lever movable block 200. The switch detent part 320 includes a detent receiving part 321, a detent elastic part 323, and a detent block 325. The detent receiver 321 forms a groove structure which is formed toward the housing base 130 at the lower end of the lever movable block 200. The detent elastic part 323 is implemented with a component that provides a predetermined elastic force. The detent elastic part 323 has one detent block 325 having one end accommodated in the detent receiving part 321 and the other end thereof. ) And the detent block 325 is elastically supported. The detent elastic part 323 is implemented with a coil spring in this embodiment.

One end of the detent block 325 is accommodated in the detent receiving portion 321 and elastically supported by the detent elastic portion 323, and the upper end of the detent block 325, that is, the detent receiving portion 321 is provided. The detent block receiving portion 326 is formed at the facing end to accommodate the detent elastic portion 323. That is, the detent block 325 is movably received in the detent receiving portion 321 formed toward the housing base 130 at the end of the lever movable block 200 and the detent elastic portion 323 is detented. The detent block 325 is stably disposed between the accommodating part 321 and the detent block 325 to be elastically deformable so that the detent block 325 is movable inside the detent accommodating part 321. Elastic support.

The other end of the detent block 325 is disposed toward the housing base 130, and the other end of the detent block 325 forms a constant contact state with the switch movable part 340. That is, the detent block contacting portion 324 is formed at the end of the detent block 325 facing the housing base 130, and the detent block contacting portion 324 is formed in a hemispherical shape having a predetermined radius to be switched. A movable contact structure for smoothing the seesaw motion of the movable portion 330 is formed.

The switch movable part 330 forms a permanent contact state with the switch detent part 320, more specifically, the detent block 325, and performs a rotational motion on a plane in which the lever switch 30 is parallel to the housing base 130. In this case, a predetermined movement is performed by the switch detent unit 320 to control the switch fixing unit 340. The switch movable part 330 has a V shape, and the switch movable part 330 includes a movable part supporter 332, a movable part inclined part 333, and a movable part contact part 335 as shown in FIG. 3. The movable part supporter 332 is disposed on the opposite side of the V-shaped support bending point 331, and the movable part supporter 332 penetrates the medium through hole 123 of the housing medium 120 to the housing base 130. It forms a constant contact pivot support state. The support bent portion 331 of the bent structure disposed on the back side of the movable part support portion 332 is in a neutral state when the lever switch 30 is not provided with an external force for rotation on a plane parallel to the housing base 130. In this case, a contact state of the detent block contacting portion 324 of the detent block 325 of the switch detent portion 320 is formed. On both sides of the movable part support part 332, the movable part inclined part 333 is formed to extend, and the movable part inclined part 333 has a housing in a normal state in which no external force is applied to the lever switch 30 through the movable part support part 332. It is formed to be inclined with the base 130. The other end of the movable part inclined part 333 extends to the movable part contact part 335, and the movable part contact part 335 forms an intermittent state with the switch fixing part 340 described below. An inclined bent portion 334 is disposed between the movable portion contact portion 335 and the movable portion inclined portion 333 so that the line segments forming both traveling directions between the movable portion contact portion 335 and the movable portion inclined portion 333 are inclined with each other. That is, the movable part contacting part 335 has an inclination angle that is parallel to the plane to which the housing base 130 belongs or is smaller than the movable part inclined part 333. The switch movable part 330 may be configured to be bent by pressing the metal plate, the switch movable part 330 has a predetermined rigidity and can be various configurations in a range formed of a conductive material.

The switch fixing part 340 within the movable range of the switch moving part 330 is disposed, and the switch fixing part 340 is disposed on one surface of the housing base 130 to switch the moving part 330 by the operation of the lever switch 30. ) Is activated to form a contact state with the switch movable unit 330 to form an electrical connection state to generate a change in the electrical signal. The switch fixing part 340 is connected to an external electric device through various circuit wires which are formed by insert injection molding in the housing base 130 and connector pins (not shown) of the base connector 131. Signal changes through the target device. For example, when the driver wants to change direction, when the lever switch 30 is rotated on a plane parallel to the housing base 130, the housing base 130 is disposed at the tip of the lever movable block 200 of the lever switch 30. As the switch detent unit 320 disposed toward the activator operates the switch movable unit 330, the switch movable unit 330 and the switch fixing unit 340 may form a contact state to implement a predetermined switching function.

The switch fixing part 340 includes a fixing part first terminal 341 and a fixing part second multiparty 343, which are each disposed in pairs to face each other. The fixing unit first terminal 341 is positioned such that the fixing unit second terminal 342 is disposed between the movable unit supporting unit 332 of the switch movable unit 330. The fixing part first terminal 341 is disposed to make contact with the movable part contacting part 335, and the fixing part second terminal 342 is arranged to be in contact with the rear surface of the movable part inclined part 333 toward the housing base 130. . The fixing part first terminal 341 and the fixing part second terminal 342 are spaced apart from each other and are connected to respective circuit wires, and both are connected to each other through the switch movable part 330 to form a predetermined electrical connection state.

Hereinafter, an operation process thereof will be described with reference to the drawings. First, as shown in FIG. 4, when an external force for rotation on a plane parallel to the housing base 130 is not applied by the driver through the lever switch 30, the switch detent portion 320 may be formed. The detent block 335 forms a contact state with the support bent portion 331 of the switch movable portion 330, so that the contact state between the switch movable portion 330 and the switch fixing portion 340 is not formed.

Then, when an external force is applied by the driver, the lever movable block 200 is also operated together with the operation of the lever switch 30. At this time, the switch detent portion 320 disposed at the lower end of the lever movable block 200 also makes a horizontal movement, and the lever movable block which has made contact with the support bent portion 331 of the switch movable portion 330. The detent block contact portion 324 of the 200 maintains the contact state continuously while the switch movable portion 330 is the movable portion support portion 332 while changing the contact state with the movable portion inclined portion 333 connected to the support bent portion 331. And the switch movable part 330 are moved together in the horizontal movement direction of the operation of the lever movable block 200 while maintaining a contact state between the housing base 130 and the housing base 130.

As shown in FIG. 5, the switch movable part 330 forms a state inclined to one side through a seesaw motion, so that the switch movable part 330 forms a contact state with the switch fixing part 340. The movable part contact portion 335 of the fixed portion first terminal 341 and the movable portion inclined portion 333 form a contact state with the fixed portion second terminal 342, and a predetermined energized state is formed to change the electrical signal. Occurs. In addition, the fixing part first terminal 341 and the fixing part second terminal 342 may prevent the switch moving part 330 from being displaced by limiting excessive seesaw rotation of the switch moving part 330.

Through such a configuration, the switch unit 300 of the vehicle steering wheel switch unit 10 according to the present invention takes a structure in which a three-stage operation is performed in a neutral, forward, and rearward motion on a plane parallel to the housing base 130. It is possible to achieve a more smooth home position return structure of the lever switch (30).

On the other hand, the switch movable part of the switch unit of the vehicle wheel steering switch unit 10 according to an embodiment of the present invention forms a stable neutral state and configured to achieve a smooth operation when the external force is removed after the seesaw movement to one side is returned to the original position The element may be further provided. That is, as shown in FIG. 6, the base support seating recess is positioned on one surface of the housing base 130 on which the switch movable part 330 is disposed, and more specifically, in a position where the movable part supporting part 332 of the switch movable part 330 contacts. 135 is disposed, the base support seating groove 135 is formed on one surface of the housing base 130. The base support seating recess 135 has a shape corresponding to a predetermined radius of curvature and the contact surface of the movable part supporter 332, so that both the movable contacting portion 335 and the fixed portion at both ends in a neutral state in which a smooth seesaw motion and external force are not provided. It is also possible to more firmly maintain the state where the first terminal 341 is not in contact.

In addition, the switch movable portion may further include a component for maintaining a predetermined position state and for smooth home position return. For example, FIG. 7 shows a variation of the switch movable part of the present invention, in which the same components are given the same reference numerals as in the above embodiment. The switch movable part 330a also includes a movable part support part having a support bent part 331 formed thereon, and a movable part inclined part 333 and a movable part contact part 335. The switch movable part 330 is provided with a housing base ( And a movable part elastic support part 339 extending toward 130. The movable part elastic support part 339 is punched from the movable part inclined part 333, one end of the movable part elastic support part 339 is connected to the movable part support part 332 to the movable part inclined part 333, and the other end thereof is connected to the housing base 130. It is arranged to form a contactable state. Through the modified configuration of the switch movable portion 330a as shown in FIGS. 7 and 8, a more stable neutral state of the switch movable portion 330a can be formed, and an external force is removed and a cancel cam for canceling the direction indicating function When a cancel operation such as (not shown) is performed, a structure that is converted to a neutral state more smoothly can be formed. In some cases, in order to further strengthen the elastic restoring force of the switch movable portion, the movable portion elastic support portion 339 (see FIG. 9) of the switch movable portion may have the length of the movable portion elastic support portion 339 with respect to the plane II parallel to the housing base 130. The direction line segment OO may also take the form of forming a predetermined preset angle θ. Through such a configuration, the switch operating device can achieve more smooth operation. Of course, in this case, the neutral state of the predetermined home position return is formed only when the cancel function is completed when the lever switch 30 is rotated on a plane parallel to the housing base 130 to implement the direction indicating function. Naturally, the angle adjustment is made within the range in which the initial elastic force to be provided.

The above embodiments are examples for describing the present invention, but the present invention is not limited thereto. For example, the present invention may be applied to a predetermined shift lever and the like in the range of simultaneously implementing the seesaw motion and the detent function of the embodiment according to the present invention. Modifications are possible.

10 ... Vehicle steering wheel switch unit 30 ... Lever switch
100 ... Unit housing 200 ... Lever moving block
300 ... switch section 320 ... switch detent section
330 ... switch moving part 340 ... switch fixing part

Claims (7)

A unit housing including a housing base, a lever movable block rotatably disposed in the unit housing, a lever switch movably disposed in the unit housing, and a plane parallel to the housing base of the lever switch. It is operated by the rotational movement on the phase and provided with a switch unit for applying a signal of the vehicle,
The switch portion: the switch detent portion disposed in the lever movable block toward the housing base, and always in contact with the switch detent portion, and when the lever switch is rotated by the switch detent portion A switch movable part disposed to be capable of being disposed, and a switch fixing part disposed on the housing base and capable of forming a contact state with the switch movable part when the switch movable part is operated;
The switch movable portion has a V shape,
The switch movable portion: a movable portion support portion supported by the housing base, a movable portion inclined portion inclined with respect to the housing base from the movable portion support portion, and extended from an end portion of the movable portion inclined portion and arranged in contact with the switch fixing portion. Steering wheel switch unit for a vehicle, characterized in that it comprises a movable contact portion. delete The method of claim 1,
The switch detent unit:
A detent receiving portion formed toward the housing base toward the lower end of the lever movable block;
A detent elastic part having one end accommodated in the detent receiving part;
And a detent block, one end of which is received by the detent resilient part and elastically supported by the detent elastic part, and the other end of the detent block makes contact with the switch movable part. The method of claim 1,
And a base support seating recess for accommodating the movable part support part in the housing base. The method of claim 1,
And the switch movable part includes a movable part elastic support part extending toward the housing base. 6. The method of claim 5,
The movable portion elastic support portion is formed punching from the movable portion inclined portion,
One end of the movable part elastic support is connected to the movable part support and the other end is arranged to form a contact state with the housing base. The method according to claim 6,
And the movable part elastic support part has an initial inclination angle inclined with respect to a plane parallel to the housing base.

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