KR102234693B1 - Automotive metal rotary switch - Google Patents

Abstract

The objective of the present invention is to provide an automotive metal rotary switch which creates a smooth sense of rotation by reducing friction force generated between a base plate and a wheel when the wheel is rotated by a user, creates a high-quality sense of wheel rotation by applying a metal wheel, prevents slippage and upgrades the design by designing a sharp edge pattern on a wheel, and creates a sense of detent to enable a user to recognize the position of a contact pad by touch, thereby making a user's operation easier. To this end, the automotive metal rotary switch according to the present invention comprises: a base plate, formed rotatably at an upper surface on which a plurality of detent grooves are separately disposed in a single circle; a wheel, formed at a lower surface which includes: a receiving groove at a position corresponding to the single circle on the base plate; and a guide groove formed in an outer periphery than the receiving groove; a detent ball of which at least a part is received in the receiving groove of the wheel; a ball bearing of which at least a part is received in the guiding groove of the wheel; and a contact pad which is coupled to the wheel, and generates an electrical signal when in contact with a predetermined object.

Description

Automotive metal rotary switch {Automotive metal rotary switch}

The present invention relates to a rotation switch, and more particularly, to a rotation switch of a vehicle that provides a high-quality wheel rotation feeling by applying metal to the wheel, prevents slipping, and enhances the interior design of the vehicle.

In general, a plurality of single function switches are formed in automobiles for the user's convenience. However, due to the increase of such single function switches, the operation method of the switch function becomes inconvenient, and the space charge ratio is inefficient.

As an example of a conventional technique for solving this, it is disclosed in Korean Patent Registration No. 10-1855445 (announced on June 08, 2018). Briefly looking at this, the touch pad described above is provided so that the user can manipulate the selection item desired by the user by simply touching it with a finger, and has a separate rotary knob and a plurality of buttons at the lower end of the touch pad. A switch assembly is provided so that it can be physically operated in parallel with the touch operation of the unit, thereby solving the inefficiency of the space charge ratio by merging the functions of a single function switch.

However, in the case of operating the switch assembly according to the prior art, since the touch pad and a plurality of buttons must be accurately touched, there remains a problem of obstructing the driving field of view while driving, making the user's operation method uncomfortable.

As another example, it is disclosed in Korean Patent Registration No. 10-1977054 (announced on May 10, 2019) for the conventional technology. Briefly looking at this, it relates to a rotary switch capable of installing another switch in an inner space of the dial switch by configuring the overall shape of the dial switch device in an annular shape.

However, the rotary switch uses a radial ball bearing structure in which a ball is inserted between the inner and outer races as a means for smoothly coupling the fixed portion and the rotating portion, and thus, there is a problem in that the size of the switch is increased as a bearing portion is additionally configured.

Korean Patent Registration No. 10-1855445 (published on February 13, 2018) Korean Patent Registration No. 10-1977054 (announced on May 10, 2019)

The first problem to be solved by the present invention is to provide a metal rotary switch for a vehicle that minimizes friction with a base when a user rotates a wheel.

A second problem to be solved by the present invention is to provide a metal rotary switch for a vehicle in which the exposed surface of the wheel is made of real metal.

A third problem to be solved by the present invention is to provide a metal rotary switch for a vehicle that minimizes the size of the switch.

A fourth problem to be solved by the present invention is to provide a metal rotary switch for a vehicle that forms a detent feeling so that a user can perceive the position of a contact pad by tactile sensation.

The subject of the present invention is not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the metal rotary switch of the vehicle according to the present invention corresponds to a base plate having a plurality of detent grooves disposed to be spaced apart from each other along a single circle on the top surface, and a single circle of the base plate. A receiving groove is formed at a position where the receiving groove is formed, a guide groove is formed outside the receiving groove at a lower surface, and a wheel installed so as to be rotatable in the base plate, and a detent ball receiving at least a part of the receiving groove of the wheel And a plurality of ball bearings, at least partially accommodated in the guide groove of the wheel, and a contact pad coupled to the wheel to generate an electrical signal when contacting a predetermined object.

Here, the wheel may include an inner wheel formed to pass through the receiving groove and the guide groove and disposed above the base plate, and an outer wheel having a plate portion disposed above the inner wheel. .

In addition, it may further include a spring installed on the upper side of the detent ball, accommodated in the receiving groove.

In addition, 24 detent grooves are spaced apart from each other at 15° intervals on the single circle, and four receiving grooves are spaced apart from each other at 90° intervals at positions corresponding to the single circle. .

In addition, the ball bearing may be accommodated in a band ring hole formed in the band ring, and at least a portion of the band ring may be accommodated in the guide groove.

In addition, 48 band ring holes may be formed at 7.5° based on the center of the band ring.

In addition, the base plate has a ring-shaped upward protrusion formed on the inner side in an upward direction, the outer wheel has a ring-shaped downward protrusion formed on the inner side, and the downward protrusion is formed of the upward protrusion and the inner wheel. It can be placed between the inner surfaces.

In addition, a separation preventing unit may be provided between the upward protrusion and the downward protrusion to prevent the base plate and the outer wheel from being separated in the vertical direction.

In addition, a ring-shaped groove may be formed in at least one of an outer surface of the upward protrusion and an inner surface of the downward protrusion, so that a part of the separation prevention part may be inserted into the groove.

In addition, the contact pad may have a plate-shaped pad body, a support rod protruding upward from the pad body, and at least one hook protruding upward from the pad body.

In addition, in the inner wheel, a skirt portion surrounding an outer surface of the base plate may be formed, a through hole and a hook groove may be formed in the skirt portion, and a support groove communicating with the through hole may be formed in the outer wheel.

In addition, the support rod is inserted into the through hole and the support groove, the hook is inserted into the hook groove to be hooked, and the through hole and the support groove have an elastic member pressing the contact pad in a downward direction of the support rod. Can be accommodated on the upper side.

In addition, the contact pad may be formed of a conductive material.

In addition, a touch display coupled to a lower surface of the base plate may be further included, and the touch display and the base plate may be coupled with a double-sided tape.

In addition, a pattern in which a plurality of uneven portions are uniformly disposed may be formed on an upper surface or an exposed surface of the wheel.

In addition, a base decor may be coupled to the inner side of the upward protrusion.

Details of other embodiments are included in the detailed description and drawings.

The rotation switch device of the touch pad of an automobile according to the present invention can obtain an effect of forming a high-quality wheel rotation by first minimizing the frictional force between the wheel and the base plate when the wheel is rotated.

Second, since the exposed surface of the wheel is made to form a pattern with real metal, it is possible to obtain the effect of preventing slipping when rotating the wheel and enhancing the interior design of the vehicle.

Third, it is possible to obtain the effect of smoothly forming the interior design of the vehicle by minimizing the size of the metal wheel controller.

Fourth, a teat feeling is formed so that the user can perceive the position of the contact pad by tactile sensation, and thus, an effect of making the user's operation method easier can be obtained.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is an exploded perspective view of a metal rotary switch of a vehicle according to an embodiment of the present invention.
2 is a plan view of a base plate according to an embodiment of the present invention.
3 is a bottom view of a wheel according to an embodiment of the present invention.
4 is a plan view of a band ring according to an embodiment of the present invention.
5 is a combined perspective view of FIG. 1.
6A is an AA cross-sectional view of FIG. 4.
6B is a cross-sectional view taken along BB of FIG. 5.
6C is a cross-sectional view taken along the line CC of FIG. 5.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and are not limiting. The scope of the present invention is indicated by the scope of the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. It must be interpreted.

Hereinafter, a metal rotary switch of a vehicle according to an embodiment of the present invention will be described with reference to the drawings.

1 is an exploded perspective view of a metal rotary switch of a vehicle according to an exemplary embodiment of the present invention, FIG. 2 is a plan view of a base plate according to an exemplary embodiment of the present invention, and FIG. 3 is a bottom view and a view of a wheel according to an exemplary embodiment of the present invention. 4 is a plan view of a band ring according to an embodiment of the present invention, FIG. 5 is a perspective view of the combination of FIG. 1, FIG. 6A is an AA cross-sectional view of FIG. 4, FIG. 6B is a BB cross-sectional view of FIG. 5, and FIG. 6C is a CC cross-sectional view of FIG. .

Referring to FIG. 1, a metal rotary switch of a vehicle according to the present invention includes a base plate 10, a wheel 20, a detent ball 30, a ball bearing 40, and a contact pad 50.

Referring to FIG. 2, the base plate 10 may be formed as an annular plate through which the center is penetrated. The base plate 10 may have a center knob (not shown) accommodated in the opened center. On the upper surface of the drawing of the base plate 10, a plurality of detent grooves 11 spaced apart from each other at a predetermined angle are formed on the movement trajectory C (hereinafter referred to as a single circle C) of the detent ball. It is preferable that the detent grooves 11 are spaced apart from each other at an angle of 15° to form a pole divided by 24 during one rotation of the wheel 20. A protruding upward protrusion 12 is formed on the upper surface of the base plate 10. Hereinafter, in all configurations of the metal rotary switch of a vehicle according to an embodiment of the present invention, the upper surface means the upper surface in the drawing, and the lower surface means the lower surface in the drawing.

Referring to FIG. 3, the wheel 20 may be formed as an annular plate through which the center is penetrated. The wheel 20 can be rotated by being spaced apart from the top surface of the base plate 10 at a predetermined interval. On the lower surface of the wheel 20, a plurality of receiving grooves 21 spaced apart from each other at a certain angle are formed on a trajectory corresponding to the single circle C, and guided outside the receiving groove 21 at the lower surface. A groove 22 is formed.

Referring to FIG. 5, a pattern in which a plurality of uneven portions are uniformly arranged is formed on an upper surface or an exposed surface of the wheel 20. The pattern of the wheel 20 may be made of metal. The pattern made of metal prevents slipping when the wheel 20 is rotated, and can form a high-end design that gives a sense of mystery to the user.

Referring to FIG. 6B, the wheel 20 includes an inner wheel 20a disposed above the base plate 10 and an outer wheel 20b having a plate portion 23 disposed above the inner wheel 20a. Includes.

The outer wheel 20b is formed with a ring-shaped downward protrusion 23 in the downward direction. The downward protrusion 23 is disposed between the upward protrusion 12 and the inner surface of the inner wheel 20a. A separation prevention part 60 is installed between the upward protrusion 12 and the downward protrusion 23 to prevent separation of the base plate 10 and the outer wheel 20b in the vertical direction.

Ring-shaped grooves 120 and 230 are formed on at least one of the outer surface of the upward protrusion 12 and the inner surface of the downward protrusion 23, and the departure prevention part 60 is formed in the grooves 120 and 230. A part is inserted to form a hook joint.

It is preferable that the spacing between the base plate 10 and the wheel 20 is 0.3mm. If the separation distance is less than 0.2mm, friction is often caused during rotation of the wheel 20, so smooth operation cannot be formed, and when the separation distance is greater than 0.4mm, the gap is caused during rotation of the wheel 20. The shaking of the wheel 20 may be severe, so that the feeling of operation may be reduced.

At least a part of the detent ball 30 may be accommodated in the receiving groove 21. The detent ball 30 is disposed between the base plate 10 and the wheel 20, and a spring 31 is installed on the upper side of the detent ball 30. The detent ball 30 rotates along the receiving groove 21 rotated when the wheel 20 rotates, and may contact the detent groove 11. Whenever the detent ball 30 comes into contact with the detent groove 11, it moves downward by the spring 31 to give the user a sense of detent.

3 and 6B, the detent ball 30 and the spring 31 are accommodated in the receiving groove 21 and act as a support to separate the base plate 10 and the wheel 20 by exerting an elastic force up and down. In addition, since it is performed, it is preferable to prevent eccentricity that the receiving grooves 21 are separated from each other at an angle of 90° so that four are formed on the trajectory corresponding to the single circle C. Since the detent ball 30 moves downward whenever it comes into contact with the detent groove 11, it creates a feeling of detent to the user so that the 24 divided poles of the base plate 10, which is the preferred embodiment, can be clearly recognized by the user. I can.

4, 6A and 6B, the ball bearing 40 may be accommodated in the band ring 41, and at least part of the ball bearing 40 may be accommodated in the guide groove 22 together with the band ring 41. The ball bearing 40 is disposed between the base plate 10 and the wheel 20, and is disposed outside the detent ball 30. The ball bearing 40 rotates along the guide groove 22 rotated when the wheel 20 rotates, and reduces the frictional force between the base plate 10 and the wheel 20.

The band ring 41 accommodates the ball bearing 40 in the band ring hole 42 to fix the relative position between the ball bearings 40 so as not to deviate, and at the same time rotates along the guide groove 22 when the wheel rotates. Guide the ball bearing 40.

Referring to FIG. 6B, the upper and lower diameters of the band ring holes 42 are smaller than the diameter of the center of the band ring hole 42 so that the ball bearing 40 does not deviate in the vertical direction. Since the band ring hole 42 accommodates a ball bearing 40 that reduces the frictional force generated between the base plate 10 and the wheel 20, the effect increases as the number increases, and 48 band ring holes 42 at an angle of 7.5° It is preferably formed.

Since the ball bearing 40 is accommodated in the guide groove 22 of the wheel 20 together with the band ring 41, a separate space is not required, so that the size of the rotary switch can be reduced.

Since the contact pad 50 is formed of a conductive material and is coupled to the lower surface of the outer circumference of the wheel 20, it may contact a predetermined object when the wheel 20 is operated in the vertical direction to induce an electrical signal.

1 and 6C, the contact pad 50 protrudes upwardly from the plate-shaped pad body 51 and the support rod 52 formed protruding upward from the pad body 51 and the pad body 51. At least one hook 53 is included.

6B and 6C, the inner wheel 20a is provided with a skirt portion 25 surrounding the outer surface of the base plate 10. A through hole 26 and a hook groove 28 are formed on the lower surface of the skirt portion 25, a support rod 52 and an elastic member 70 are inserted into the through hole 26, and a hook is inserted into the hook groove 28. 53 is inserted.

A support groove 27 communicating with the through hole 26 is formed on the lower surface of the outer wheel 20b, and the support rod 52 and the elastic member 70 are accommodated in the support groove 27.

The elastic member 70 is installed on the upper side of the support rod 52, and the elastic member 70 is supported by the support groove 27 to transmit elastic force to the pad main body 51 in the downward direction. Protruding from the center of (51) is preferable to prevent eccentricity. Since the hook 53 is accommodated in the hook groove 28 of the inner wheel 20a and is hooked to prevent the contact pad 50 from being separated in the downward direction, it is eccentric that it is composed of two, one at both ends of the pad main body 51. It is desirable to prevent. The contact pad 50 is firmly coupled to the wheel 20 by hooking the hook 53 and an elastic force applied in the downward direction of the elastic member 70.

Referring to FIG. 1, a lower surface of the base plate 10 may be coupled to an upper surface of a touch display (not shown). A double-sided tape 14 may be attached and coupled between the touch display (not shown) and the base plate 10. As a touch display (not shown), a capacitive touch display may be used.

It is preferable that the double-sided tape 14 has a thickness of 0.15mm, and the wheel 20 is spaced apart from the touch display (not shown) by the thickness so as not to rub against the touch display (not shown) when the wheel 20 rotates. I can. In addition, the preferred separation distance between the base plate 10 and the wheel 20 is 0.3 mm, which is greater than 0.15 mm, which is the preferred separation distance between the touch display (not shown) and the wheel 20, thereby reducing friction when the wheel 20 rotates. When the wheel 20 is pressed downward for signal input, the contact pad 50 coupled to the lower surface of the outer circumference of the wheel 20 may contact the touch display (not shown).

When the wheel 20 is pressed downward, the contact pad 50 of a touch display (not shown) corresponding to the 24 divided poles of the base plate 10, which is the preferred embodiment, when the contact pad 50 is made of a conductive material. Since a predetermined electrical signal can be generated by contacting the 24 divided positions, the number of switches can be reduced by performing functions corresponding to 24 switches.

Referring to FIG. 1, a base decor 13 of a rose gold color is coupled to an exposed inner surface of the upward protrusion 12.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims. And all changes or modified forms derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

10: base plate 11: detent groove
12: upward protrusion 13: base decor
14: double-sided tape 20: wheel
20a: inner wheel 20b: outer wheel
21: receiving groove 22: guide groove
23: plate portion 24: downward protrusion
25: skirt portion 26: through hole
27: support groove 28: hook groove
30: detent ball 31: spring
40: ball bearing 41: band ring
42: band ring hole 50: contact pad
51: pad body 52: support rod
53: hook 60: separation prevention part
70: elastic member 120, 230: concave portion
C: single circle

Claims (16)

A base plate having a plurality of detent grooves disposed to be spaced apart from each other along a single circle on the upper surface;
A wheel having a receiving groove formed at a position corresponding to a single circle of the base plate, a guide groove formed outside the receiving groove at a lower surface, and rotatably installed on the base plate;
A detent ball that is at least partially accommodated in the receiving groove of the wheel;
A plurality of ball bearings at least partially accommodated in the guide groove of the wheel;
Includes; a contact pad coupled to the wheel to generate an electrical signal when in contact with a predetermined object,
The detent ball is in contact with the plurality of detent grooves according to the rotation of the wheel,
The wheel,
An inner wheel formed to pass through the receiving groove and the guide groove and disposed above the base plate,
Including an outer wheel having a plate portion disposed on the upper side of the inner wheel,
The ball bearing is accommodated in a band ring hole formed in the band ring,
The band ring is a metal rotary switch of a vehicle at least partially accommodated in the guide groove. delete The method according to claim 1,
A metal rotary switch for a vehicle, further comprising a spring installed on the upper side of the detent ball and accommodated in the receiving groove. The method of claim 3
24 of the detent grooves are spaced apart from each other at 15° intervals on the single circle,
A metal rotary switch of a vehicle in which four receiving grooves are spaced apart from each other at 90° intervals at a position corresponding to the single circle. delete The method according to claim 1,
The metal rotary switch of a vehicle in which 48 band ring holes are formed at 7.5° with respect to the center of the band ring. The method according to claim 1,
The base plate has a ring-shaped upward protrusion formed on the inside in the upward direction,
The outer wheel has a ring-shaped downward protrusion formed in a downward direction,
The downward protrusion is a metal rotation switch of a vehicle disposed between the upward protrusion and the inner surface of the inner wheel. The method of claim 7,
A metal rotation switch of a vehicle in which a separation preventing part is installed between the upward protruding part and the downward protruding part to prevent separation of the base plate and the outer wheel in the vertical direction. The method of claim 8,
A metal rotary switch of a vehicle in which a ring-shaped groove is formed in at least one of an outer surface of the upward protrusion and an inner surface of the downward protrusion, and a part of the departure prevention part is inserted into the groove. The method according to claim 1,
The contact pad includes a plate-shaped pad body,
A support rod protruding upward from the pad body is formed,
A metal rotary switch of a vehicle in which at least one hook protruding upwardly from the pad body is formed. The method of claim 10,
The inner wheel has a skirt portion surrounding the outer surface of the base plate,
A through hole and a hook groove are formed in the skirt part,
A metal rotation switch of a vehicle in which a support groove communicating with the through hole is formed in the outer wheel. The method of claim 11,
The support rod is inserted into the through hole and the support groove,
The hook is inserted into the hook groove to be hooked,
A metal rotary switch of a vehicle in which an elastic member for pressing the contact pad in a downward direction is accommodated in the through hole and the support groove. The method according to claim 1,
The contact pad is a metal rotary switch of a vehicle formed of a conductive material. delete The method according to claim 1,
A metal rotary switch of an automobile in which a pattern in which a plurality of uneven portions are uniformly arranged is formed on an upper surface or an exposed surface of the wheel. The method of claim 7,
On the inside of the upward protrusion, the metal rotary switch of the car to which the base decor is coupled.

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