KR101373972B1 - Switching unit for a vehicular steering wheel - Google Patents

Abstract

The present invention provides a switch unit disposed on a steering wheel of a vehicle, comprising: a housing disposed on a vehicle steering wheel; A substrate disposed inside the housing; A push switch knob including a push switch knob exposed to one surface of the housing and operatively disposed, and a push switch operated by the push switch knob; A scroll switch unit disposed through the push switch knob, the scroll switch knob being rotatably supported by the housing, and a scroll switch operated by rotation of the scroll switch knob; Provided is a vehicle steering wheel switch unit disposed inside the housing, the both ends of which are rotatably disposed in the housing, and having a universal plate portion rotatably connected to the scroll knob so as to intersect the rotational axis of the housing. .

Description

Vehicle steering wheel switch unit {SWITCHING UNIT FOR A VEHICULAR STEERING WHEEL}

The present invention relates to a switch unit. More specifically, as a switch unit mounted on a steering wheel of a vehicle, a user can easily operate by a user to provide safer driving performance, and a switch that can easily perform a manufacturing and assembling process and also reduce a manufacturing cost. It is about a unit.

BACKGROUND ART A vehicle such as an automobile has a function as a variety of convenience means for enabling a user to provide a more stable and comfortable running state beyond a function as a moving means. Accordingly, the vehicle is equipped with various convenience facilities and various switches for operating and controlling the same.

In general, when an operation in the opposite direction is required, for example, opening and closing a window of a vehicle, a seesaw switch device or a sliding switch device or the like for allowing the vertical movement of the window to correspond to the operation of the front and rear ends is provided. In order to select each operation mode, a rotary switch device or the like capable of selecting a plurality of modes is used.

Such switch devices are generally equipped with a PCB substrate inside the housing, and one side of the housing is equipped with an operation knob operated by a user, and a contact switch mounted on the PCB substrate is operated according to the operation of the operation knob by the user. In accordance with the operation of the contact switch, the PCB is configured to generate an electrical signal.

Such switch devices are configured in such a way that one switch device typically performs one function. For example, in the case of a window open / close switch device, a signal for opening or closing one window is generated, and a vehicle audio system In the case of the control switch, one switch device for adjusting the volume and the other switch device for changing the track are arranged in a separate manner.

Therefore, a plurality of switch devices for controlling various electronic devices are installed in a vehicle interior, and in recent years, the number of such switch devices is increasing due to the increase of various convenience equipments. As the number of switch devices increases, the configuration of the vehicle interior becomes complicated. In particular, since the driver operates various switch devices while driving, the method of operation is not easy and causes serious obstacles in safe driving. there was.

In addition, according to the tendency of the switch to be concentrated on the steering wheel of the vehicle, the switch device according to the prior art allows only a simple push action or a scroll action or propose an integrated structure through their adjacent arrangement.

On the other hand, the universal joint used in the implementation of the tilting operation according to the prior art took a structure that is connected around the miniature universal joint in order to implement the universal operation encountered a considerable difficulty in assembly.

The present invention has been invented to solve the problems of the prior art, and provides a switch unit that implements a push switch and a scroll operation in combination to enable the push operation through the tilting motion, the vehicle steering of the structure with improved assembly To provide a wheel switch unit.

The present invention provides a switch unit disposed on a steering wheel of a vehicle, comprising: a housing disposed on a vehicle steering wheel; A substrate disposed inside the housing; A push switch knob including a push switch knob exposed to one surface of the housing and operatively disposed, and a push switch operated by the push switch knob; A scroll switch unit disposed through the push switch knob, the scroll switch knob being rotatably supported by the housing, and a scroll switch operated by rotation of the scroll switch knob; Provided is a vehicle steering wheel switch unit disposed inside the housing, the both ends of which are rotatably disposed in the housing, and having a universal plate portion rotatably connected to the scroll knob so as to intersect the rotational axis of the housing. .

In the vehicle steering wheel switch unit, the housing includes: a housing cover through which the push switch knob is exposed, a housing guide rotatably supporting a scroll switch knob shaft connected to the scroll switch knob, and the housing And a housing body disposed to face the housing cover with a guide interposed therebetween, wherein the universal plate portion includes: a universal plate disposed between the substrate and the housing body, and a universal hinge portion extended from the universal plate. It may be.

In the vehicle steering wheel switch unit, the universal hinge portion: a universal knob hinge portion which is connected to the push knob hinge portions disposed on both sides of the push switch knob in a rotatable manner, and is disposed on the housing body, wherein the push It may be provided with a universal body hinge portion connected to the body hinge portion disposed so as to intersect the rotation axis of the knob hinge portion and the relative rotation.

In the vehicle steering wheel switch unit, the rotation shafts of the universal knob hinge portion and the universal body hinge portion may be non-orthogonal to each other.

In the vehicle steering wheel switch unit, the push switch unit: a push switch knob movable portion disposed on the lower surface of the push switch knob, and disposed on the one surface of the substrate in correspondence with the push switch knob movable portion, the push switch knob It may be provided with a push switch that is actuated by the movable portion to generate a change in the electrical signal.

In the vehicle steering wheel switch unit, a rubber pad may be further provided between the substrate and the push switch knob to prevent damage caused by foreign matter.

In the vehicular steering wheel switch unit, the scroll switch unit includes: a scroll switch movable part disposed on a scroll switch shaft connected to the scroll switch knob and rotating together with the scroll switch knob, and the outer side of the substrate outside the scroll switch movable part; It may be provided with a scroll switch disposed on one surface and including a scroll switch sensor for generating a change in the electrical signal by the rotation of the scroll switch movable portion.

In the vehicle steering wheel switch unit, the scroll switch moving part may be formed as an encoder wheel having a gear wheel shape, and the scroll switch sensor may be implemented as an optical sensor including a light emitting part and a light receiving part.

According to the present invention, it is possible to provide a vehicle steering wheel switch unit having a push switch unit for a push operation and a scroll switch unit for a scroll operation.

In addition, the steering wheel switch unit for a vehicle according to the present invention can take a universal plate portion structure to provide a more stable push operation.

In addition, the steering wheel switch unit for a vehicle according to the present invention may take the structure of the universal plate portion to improve the assemblage to prevent misassembly and to reduce the process time, and also to reduce the production cost by easily performing the manufacturing and assembly process It can be effected.

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 exploded perspective view of a vehicle steering wheel switch unit according to an embodiment of the present invention.
3 is a schematic bottom perspective view of a push switch knob of a vehicle steering wheel switch unit according to an embodiment of the present invention.
4 is a schematic plan view of a vehicle steering wheel switch unit according to an embodiment of the present invention.
5 is a schematic partial cross-sectional view taken along the line AA of FIG. 4.
6 and 7 are schematic partial sectional views and operating state partial sectional views taken along the line BB of FIG. 4.
8 and 9 are schematic partial sectional views and operating state partial sectional views taken along the line CC of FIG. 4.
10 and 11 are diagrams reconstructed from the black and white diagrams of FIGS. 2 and 4, respectively.
12 and 13 are partial perspective views of the operating states of FIGS. 7 and 9, respectively.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

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 exploded perspective view of a vehicle steering wheel switch unit according to an embodiment of the present invention, Figure 3 is a schematic bottom perspective view of a push switch knob of a vehicle steering wheel switch unit according to an embodiment of the present invention, Figure 4 is a schematic plan view of a vehicle steering wheel switch unit according to an embodiment of the present invention 5 shows a schematic partial cross sectional view taken along the line AA of FIG. 4, FIGS. 6 and 7 show a schematic partial cross sectional view and an operating state partial sectional view taken along the line BB of FIG. 4, and FIG. 8. And FIG. 9 shows a schematic partial sectional view and an operating state partial sectional view taken along the line CC of FIG. 4.

The vehicle steering wheel switch unit 10 according to an embodiment of the present invention includes a housing 100, a substrate 200, a push switch unit 300, a scroll switch unit 400, and a universal plate 500. The substrate 200 is disposed inside the housing 100, and the change of the electrical signal due to the operation of the push switch 300 and the scroll switch 400 is transmitted to the external electric device through the substrate 200. .

The housing 100 includes a housing cover 110, a housing body 120, and a housing guide 130. As illustrated in FIG. 1, the housing cover 110 and the housing body 120 are fastened to each other to form an internal space. And other components are arranged in the interior space.

One surface of the housing cover 110 is disposed through to expose one surface of the push switch knob 310 of the push switch 300 to be described below. The housing body 120 has a structure disposed to face the housing cover 110 with the housing guide 130 therebetween. The housing body 120 is combined with the housing cover 110 to form an internal space. In the interior space other components are arranged. The housing cover 120 includes a body scroll support 121 for rotatably supporting the scroll switch unit 300 and a body hinge part 123 for uniaxially rotating the universal plate unit 500 described below. .

The housing guide 130 is disposed in an inner space formed by the housing cover 110 and the housing body 120, and the housing guide 130 is a scroll switch connected to the scroll switch knob 410 of the scroll switch unit 400. And a guide shaft support 133 for rotatably supporting the knob shaft. In addition, the housing guide 130 is provided with a guide knob through hole 131 to allow the operation of the scroll switch knob 410, the push to allow the penetrating operation of the push knob movable portion 315 of the push switch 300. The switch movable part through hole 135 is provided. In addition, the housing guide 130 is further provided with a guide universal through hole 137 for the connection of the push switch knob 310 and the universal plate 500 of the push switch 300. In addition, the housing guide 130 includes a guide scroll sensor part penetrating portion 139, and the guide scroll sensor part penetrating portion 139 has a guide shaft support 133 between the guide knob penetrating opening 131 therebetween. It is formed to put.

The substrate 200 is disposed between the housing guide 130 and the housing body 120. The substrate 200 is connected to an external device such as a power supply (not shown) and / or a controller (not shown) through a connector (not shown). Make electrical connections with electrical devices. The push switch 330 of the push switch 300 may be disposed on one surface of the substrate 200, and in some cases, a light source such as an LED for irradiating light with the push switch knob of the push switch may be further provided. May be The universal plate 501 of the universal plate part 500 to be described below is disposed below the substrate 200. The housing body 120 includes a body scroll support 121 to be described below, and a substrate through hole 201 is provided in the substrate 200, and the body scroll support 121 penetrates through the substrate through hole 201. Through the rubber pad through hole 321 of the rubber pad 320 and the guide knob through hole 131 of the housing guide 130, the scroll switch knob 410 of the scroll switch 400 may be rotatably supported. Can be.

The push switch unit 300 includes a push switch knob 310 and a push switch 330, which is a housing cover 110 at the top of the housing 100, more specifically, the housing guide 130. It is exposed to one surface of the) is arranged to be movable, the push switch 330 is operated by the push switch knob 310 to transmit a change in the electrical signal to the external electrical device through the substrate 200.

The push switch knob movable part 315 is disposed on the lower surface of the push switch knob 310, and the push switch knob movable part 315 has a structure extending from the lower surface. The push switch knob movable part 315 has a cross shape to stably transmit the pressing force for achieving a stable operation of the push switch 330.

The push switch 330 is disposed on or above one surface of the substrate 200 to a corresponding position of the push switch knob moving part 315, and the push switch 330 is operated by the push switch knob moving part 315 to perform an electrical signal. Produces a change of and is transmitted through the substrate 200 to an external electrical device or the like.

The push switch 330 of the push switch unit 300 is implemented as a tact switch in this embodiment. On the other hand, the push switch unit 300 is further provided with a rubber pad 320, the rubber pad 320 can prevent damage to the unit due to foreign matter. That is, the rubber pad 320 is disposed between the substrate 200 and the housing guide 130. The vehicle steering wheel switch unit 10 according to the present embodiment is disposed on the steering wheel (not shown) of the vehicle. Unlike other vehicle switches disposed perpendicular to the ground, the rubber pad 320 is further provided as a component for protecting the lower substrate in that foreign matter such as liquid is highly introduced, and the rubber pad 320 is provided from the outside. Inflow of foreign matter is transferred to the lower substrate to prevent damage caused by the occurrence of an electrical short.

A rubber pad through hole 321 is disposed at the center of the rubber pad 320 to secure a movable space such as the scroll switch knob 410 of the scroll switch 400. The rubber pad switch protrusion 323 is disposed at a corresponding position of the push switch knob movable portion 315 to the outside of the rubber pad through hole 321, and the rubber pad switch protrusion 323 has an elastic restoring force, thereby providing a push switch knob movable portion. If the external force is removed after being pressed by the 315 may be restored to the original position by the elastic restoring force.

The scroll switch unit 400 includes a scroll switch knob 410 and a scroll switch 420, the scroll switch 420 is operated by the scroll knob 410. The scroll switch 420 includes a scroll switch mover 421 and a scroll switch sensor 423, and the scroll switch mover 421 is connected to the scroll switch knob 410. The scroll switch knob 410 has a cylindrical structure, which has a scroll switch knob shaft 411. The scroll switch knob shaft 411 is formed along the rotational axis of the scroll switch knob 410 and the scroll switch knob shaft 411 is supported by the guide shaft support 133 of the housing guide 130. Protruding ends are formed at both ends of the scroll switch knob 410, which are rotatably supported by the body scroll support 121 on the housing body 120. Through this, even if an external force is applied to the scroll switch knob 410 through a finger such as a driver, a stable position can be achieved.

The scroll switch movable portion 421 is disposed on one end side of the scroll switch knob shaft 411 to rotate together when the scroll switch knob 410 pivots. A scroll switch sensor 423 is disposed on one surface of the substrate 200 outside the scroll switch moving part 421, which is activated by the scroll switch moving part 421 to generate a change in an electrical signal. . The scroll switch sensor 423 may have various configurations in a range in which an electrical signal is changed by the rotation of the scroll switch movable unit 421. The scroll switch sensor 423 according to the present embodiment includes an optical sensor including a light emitting unit and a light receiving unit. The scroll switch mover 421 is implemented as an encoder wheel of a gear type, so that the rotation amount of the scroll switch knob 410 can be sensed through the presence or absence of reflected light. In addition, in some cases, the scroll switch sensor is implemented as a magnetic sensor, and the scroll switch moving part is formed as a gear-type ferromagnetic wheel to sense a change in the magnetic field. Various configurations are possible in the range.

On the other hand, the vehicle steering wheel switch unit 10 according to the present invention forms the operation of the push switch unit 300 through the universal plate portion 500. The universal plate part 500 is disposed inside the housing 100, and both ends thereof are rotatably disposed in the housing 100, and the scroll switch knob 410 is rotatable so as to intersect the rotational axis of the housing 100. The universal plate portion 500 includes a universal plate 501 and a universal hinge portion 503. The substrate 200 is positioned and fixedly positioned between the housing body 120 and the housing guide 130, and the universal plate 501 is disposed between the substrate 200 and the housing body 120, and the universal plate 501. The substrate 200 may be spaced apart by a predetermined interval so that the interference with the substrate 200 may be prevented when the universal plate 501 is operated. The outer side of the universal plate 501 is provided with a universal hinge 503 extending from the universal plate 501.

The universal plate 501 has a structure in which one side is formed with a groove, and prevents contact with the body scroll support 121 extending from the housing body 120 through such a structure, and the universal plate 501 is movable. In this case, interference with other components can be prevented.

The universal hinge part 503 is connected to the housing 100 and / or the push switch knob 310 so as to be able to rotate relatively to enable the smooth operation of the push switch part 300.

The universal hinge portion 503 includes a universal knob hinge portion 510 and a universal body hinge portion 520, wherein the universal knob hinge portion 510 is disposed on both sides of the universal plate 501 and push switch knob 310. And a push knob hinge portion 313 formed corresponding to both sides of the < RTI ID = 0.0 >

Universal body hinge portion 520 is disposed on both sides of the side of the universal plate 501 is formed to form a rotation axis different from the universal knob hinge portion 510. That is, the universal body hinge portion 520 is connected to the body hinge portion 123 so as to be relatively rotatable, and the body hinge portion 123 opens the universal plate 501 from one surface of the housing body 120 of the housing 100. It is formed extending in the direction, the rotating shaft to form the body hinge portion 123 is disposed to intersect the rotating shaft of the push knob hinge 313. That is, the universal body hinge portion 520 and the universal knob hinge portion 510 extending from the universal body plate 501 have rotational shafts intersecting with each other and are respectively provided on the housing body 120 and the push switch knob 310. The body hinge 123 and the push knob hinge 313 which are formed are connected to each other in a rotatable manner.

These rotating shafts form an intersecting structure, but these rotating shafts may form an orthogonal structure, but the vehicle steering wheel switch unit 10 according to the present invention forms a non-orthogonal state to form three contact movable structures. The push switch unit 300 of the switching movable structure can be formed.

6 to 9 are cross-sectional views illustrating a structure in which the push switch unit 300 according to the present invention is operated through the universal plate unit 500. As shown in FIG. 6, an external force P is applied. Previously, the push switch knob 310 of the push switch unit 300 occupies a normal parallel position, wherein the push knob hinge portion 313 formed on the outer side of the push switch knob 310 is a universal part of the universal plate portion 500. It is connected to the knob hinge portion 510 to form a structure for supporting the line II (see Fig. 3) by the rotation axis. In this case, when the external force P is applied, as shown in FIGS. 7 and 12, the push switch knob 310 rotates using the line II as the rotation shaft, and the push switch knob movable part 315 moves the push rubber switch protrusion 323. A push switch 330 that is pressurized and disposed below is also activated to generate a change in a predetermined electrical signal and transmit it through the substrate 200. That is, the push switch knob 310 is rotated with respect to the universal plate 500 by a predetermined angle θ1 about an axis forming the line I-I of the universal plate 500. At this time, the rotational motion does not occur in the connecting hinge structure between the universal body hinge portion 520 and the body hinge portion 123 having the line II-II intersected as the rotation axis.

Also,

As shown in FIG. 8, before the external force P is applied, the push switch knob 310 of the push switch unit 300 occupies a normal parallel position. In this case, the push knob is formed outside the push switch knob 310. In a state in which the hinge portion 313 is connected to the universal knob hinge portion 510 of the universal plate portion 500, the universal body hinge portion 520 of the universal plate portion 500 extends from the housing body 120. It is also connected to the hinge portion 123 to form a structure for supporting the line II-II (see FIG. 3) by the rotation axis. In this case, when the external force P is applied at a position spaced apart from the rotation axis of the line II, as shown in FIGS. 9 and 13, the push switch knob 310 and the universal plate connected thereto using the line II-II as the rotation axis ( 501 is rotated so that another push switch knob movable portion 315 presses another push rubber switch protrusion 323 and a push switch 330 disposed below is also activated to generate a change in a predetermined electrical signal and to change the substrate ( Through 200). That is, the push switch knob 310 is rotated with respect to the universal plate portion 500 by a predetermined angle θ2 about the axis forming the line II-II of the universal plate portion 500. At this time, the rotational movement does not occur in the connecting hinge structure between the universal knob hinge portion 510 and the push switch knob hinge portion 313 having the line I-I intersected as the rotation axis.

When the external force P is removed after such a series of operations, the push switch knob 310 and / or the universal plate part 500 may be returned to their original positions by the restoring force of the push switch 330 and the restoring force of the rubber pad 320. .

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: housing 200 ... substrate
300 ... push switch section 400 ... scroll switch section
500 ... universal plate

Claims (8)

A switch unit arranged on the steering wheel of the vehicle,
A housing disposed on the vehicle steering wheel;
A substrate disposed inside the housing;
A push switch knob including a push switch knob exposed to one surface of the housing and operatively disposed, and a push switch operated by the push switch knob;
A scroll switch unit disposed through the push switch knob, the scroll switch knob being rotatably supported by the housing, and a scroll switch operated by rotation of the scroll switch knob;
And a universal plate part disposed inside the housing, the both ends of which are rotatably disposed in the housing, and in which the scroll knob is rotatably connected so as to intersect the rotation axis with respect to the housing. The method of claim 1,
Said housing comprising:
A housing cover through which the push switch knob is exposed;
A housing guide rotatably supporting a scroll switch knob shaft connected to the scroll switch knob;
A housing body disposed to face the housing cover with the housing guide therebetween,
The universal plate portion:
A universal plate disposed between the substrate and the housing body;
And a universal hinge portion extending from the universal plate. 3. The method of claim 2,
The universal hinge portion:
A universal knob hinge portion connected to the push knob hinge portions disposed at both sides of the push switch knob in a relative rotatable manner,
And a universal body hinge portion disposed on the housing body, the universal body hinge portion being rotatably connected to the body hinge portion disposed to intersect the pivot axis of the push knob hinge portion. The method of claim 3, wherein
And a rotation shaft of the universal knob hinge portion and the universal body hinge portion is non-orthogonal to each other. The method of claim 1,
The push switch unit:
A push switch knob movable part disposed on a lower surface of the push switch knob;
And a push switch disposed on one surface of the substrate in correspondence with the push switch knob moving part and operated by the push switch knob moving part to generate a change in an electrical signal. 6. The method of claim 5,
A vehicle steering wheel switch unit, further comprising a rubber pad between the substrate and the push switch knob to prevent damage caused by foreign matter. The method of claim 1,
The scroll switch unit:
A scroll switch movable part disposed on a scroll switch shaft connected to the scroll switch knob and rotating together with the scroll switch knob;
And a scroll switch including a scroll switch sensor disposed on one surface of the substrate outside the scroll switch moving part and generating a change in an electrical signal by rotation of the scroll switch moving part. . 8. The method of claim 7,
The scroll switch moving part is formed of an encoder wheel having a gear wheel shape,
The scroll switch sensor is a vehicle steering wheel switch unit, characterized in that implemented by an optical sensor including a light emitting unit and a light receiving unit.

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