KR20100053721A - Rotary push button switch - Google Patents

Abstract

PURPOSE: A rotary push button switch is provided to reduce the number of printed circuit boards needed by increasing freedom in the designing of a circuit pattern of a printed circuit board. CONSTITUTION: A signal conductor(60) controls the strength and weakness of a fixed signal. A body(50) is supported in the inner part of the signal conductor. The body is connected to a printed circuit board(70). A switch knob(40) is moved perpendicularly from the inside of the body. The switch board generates a corresponding by pressing a push switch of the printed circuit board while being pressed from outside. The rotary knob is rotated together with the signal conductor according to an external operation. A breaking rib(110) supports the switch knob according to contact with the push switch. The breaking rib guides the switch knob and the rotary knob in the direction of the printed circuit board depending on the occurrence of external shock.

Description

Rotary push button switch {ROTARY PUSH BUTTON SWITCH}

The present invention relates to a rotary push button switch, and more particularly, to damage the passenger inside the rotary push button switch in the event of an external shock and to protect the occupant, and also to eliminate the space constraints when designing the circuit pattern of the printed circuit board, thereby printing It relates to a rotary push button switch that can reduce the number of circuit boards required.

In order to create a comfortable riding environment, the vehicle is provided with an air conditioning apparatus that controls the temperature and humidity of the vehicle indoor air.

In general, the center fascia panel (reference plane) installed in the center of the instrument panel of the vehicle is provided with a plurality of mode switches for operating the air conditioning mode, the radio and the air conditioning apparatus, and the like. Are protruding.

Knobs as described above must satisfy the legal regulations (9.5 mm or less with respect to the reference plane) for the regulation of protrusions as automobile safety regulations.

By the way, the protrusion that the height of protrusion must be large due to the convenience of the occupant, in order to satisfy the above protrusion regulation, for example, when the impact is more than a predetermined size (38.5kgf) by the passenger seat occupant in a car crash accident, It is designed to protect the occupant by absorbing the shock by allowing the inside of the reference plane (center fascia panel) to enter.

1 illustrates a mode switch to which a general knob shock absorbing structure is applied.

Referring to FIG. 1, the knob shock absorbing structure according to the related art has a connection part 2 formed on a front surface of a printed circuit board 1 and a printed circuit board 1, and connected to the connection part 2 to manipulate various functions. It consists of a knob (5).

The printed circuit board 1 is formed with a fracture portion 7 whose circumference is cut off based on the connection portion 2, and is connected and connected by the fracture portion 7 and the connection piece 9.

Accordingly, when an impact of a predetermined size or more (38.5 kgf) is applied to the front side of the knob 5, the breakage portion 7 is cut off from the printed circuit board 1 while the connecting piece 9 is broken and protrudes from the reference plane. The knob 5 that was present has a structure that enters the inside.

According to the knob shock absorbing structure according to the prior art, since a portion of the printed circuit board is cut and broken in order to alleviate external shock, there is a problem in that the design is difficult due to the limitation of space in the design of the circuit pattern.

In addition, due to the structure of the printed circuit board has a narrow width of the connection piece can not be formed, there is a problem that the operation is not economical and difficult to work due to breakage of the connection piece.

In addition, the printed circuit board has a problem that the assembly cost is increased as two pieces are provided to free the design of the circuit pattern. Therefore, there is a need for improvement.

The present invention was devised to improve the problems of the prior art as described above, and is damaged inside the rotary push button switch in the event of an external shock to protect the occupant and eliminate space constraints when designing the circuit pattern of the printed circuit board, Therefore, it is an object of the present invention to provide a rotary push button switch that can reduce the number of printed circuit boards required.

The rotary push button switch according to the present invention comprises: a signal conductor for controlling the strength of the corresponding signal by forming a plurality of signal ribs along a circular trajectory on the lower side and overlapping the sensor members formed on the printed circuit board in rotation in order. A body that is supported inside the signal conductor and connected to the printed circuit board, and a switch knob that is formed to be capable of lifting and lowering inside the body to press the push switch of the printed circuit board to generate a corresponding signal when the external press is pressed. Rotary knob which is formed to be connected to the upper side of the rotary knob and rotates together with the signal conductor by external operation and is formed inside of the switch knob to support the switch knob as it comes in contact with the push switch, and when the external shock occurs, the switch knob and the rotary And break ribs to guide the knobs toward the printed circuit board.

The switch knob is preferably formed notched grooves on both sides based on the portion that is connected to the break rib.

The body forms an operation sensing pin at an upper side, and the rotary knob forms a serration portion having a wavy wave shape accommodating the operation sensing pin inside the lower side to give a rotational operation feeling.

The switch knob protrudes a guide rib on an outer circumferential surface, and the body preferably forms a guide groove for receiving and guiding the guide rib.

The signal conductor forms a support groove on the inner side, and the body protrudes a support protrusion on the outer circumferential surface to be supported inside the signal conductor, and the signal conductor supports the external shock of the rotary knob. It is preferable to further form a binding release portion for inducing the support protrusion to be separated from the groove.

In addition, the binding release portion extends outwardly of the signal conductor to support the lower side of the rotary knob, and extends upwardly from the support ribs and the support ribs bent downward together with the edge of the signal conductor when a pressing force is generated. It includes a coupling rib coupled to the rotary knob.

The rotary knob is supported on the coupling rib by forming a locking step on the lower outer side.

According to the rotary push button switch of the present invention, when the external impact is broken inside the rotary push button switch can protect the occupants. In addition, the present invention can eliminate space constraints when designing a circuit pattern of a printed circuit board. In addition, the present invention is free to design the circuit pattern of the printed circuit board can reduce the required number of printed circuit boards.

Hereinafter, an embodiment of a rotary push button switch according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

2 is a perspective view of a rotary push button switch according to an embodiment of the present invention, Figure 3 is an exploded perspective view of a rotary push button switch according to an embodiment of the present invention, Figure 4 is according to an embodiment of the present invention Bottom exploded perspective view of a rotary push button switch.

5 is a cross-sectional view of a rotary push button switch according to an embodiment of the present invention, Figure 6 and Figure 7 is a cross-sectional view showing the internal broken state of the rotary push button switch according to an embodiment of the present invention.

2 to 5, the rotary push button switch according to the exemplary embodiment of the present invention may include a rotary knob 20, a cap 30, a switch knob 40, a body 50, and a signal conductor 60. It includes.

Here, the rotary knob 20 and the signal conductor 60 are connected to each other and rotate together to perform a rotary switch function, and the cap 30 and the switch knob 40 and the body 50 are connected to each other and pressed externally. When elastically lowered and performs the function of the push switch 74 to generate a corresponding signal.

At this time, the rotary knob 20 forms the external shape of the rotary push button switch. The user grabs and rotates the rotary knob 20. Rotary knob 20 is applicable to a variety of shapes are shown in a cylindrical shape for convenience.

In addition, the signal conductor 60 is connected to the lower side of the rotary knob 20 to rotate together with the rotary knob 20. In particular, the signal conductor 60 protrudes a plurality of signal ribs 62 on the circular locus along the lower edge. At this time, the printed circuit board 70 forms a sensor member 72. The sensor member 72 detects the rotational direction and the amount of rotation of the signal conductor 60 and serves to generate a corresponding signal such as adjusting the intensity of the volume. Thus, as the signal conductor 60 rotates, the signal rib 62 sequentially overlaps the sensor member 72 to generate the corresponding signal.

In particular, the signal conductor 60 may be integrally formed with the rotary knob 20, but the cap 30, the switch knob 40, the body 50, and the like may be easily assembled inside the rotary knob 20. It is preferable that the rotary knob 20 is formed to be detachable. In this case, the signal conductor 60 is coupled to the rotary knob 20 by various methods, and is illustrated as being coupled by a hook coupling method for convenience.

The signal conductor 60, the signal rib 62, and the sensor member 72 may be applied in various shapes.

On the other hand, the body 50 is assembled and supported inside the signal conductor 60.

The body 50 serves to support the rotary knob 20. In addition, the body 50 is supported by the printed circuit board 70. In particular, the body 50 is preferably firmly coupled to the printed circuit board 70 by bolting or the like. In addition, the signal conductor 60 is supported on the circumferential surface of the body 50 to maintain the clearance with the printed circuit board 70. Of course, the signal conductor 60 is rotatably supported by the body 50.

In particular, the rotary knob 20 is preferably to allow the user to feel the operation when rotated. Thus, the body 50 forms an operation sensing pin 132 upwards, and the rotary knob 20 forms a serration portion 134 of a wave shape or a sinusoidal shape on an inner surface thereof. Therefore, when the rotary knob 20 is rotated, the serration unit 134 continuously guides the operation detecting pin 132 along the corresponding trajectory. Thus, since the rotary knob 20 repeatedly moves up and down by the trajectory of the serration portion 134, the rotary knob 20 gives a rotational feeling of operation. The operation detecting pin 132 may be integrally formed with the body 50 or may be detachably formed. In addition, the operation detection pin 132 is applicable to a variety of shapes.

At this time, the reason why the operation sensing pin 132 is formed on the upper side of the body 50 is to induce the damage to the signal conductor 60 during an external impact.

In addition, a switch knob 40 is provided inside the body 50. The switch knob 40 is formed to be able to move up and down inside the body 50 to elastically lower when an external pressing force is generated. At this time, as the elastic member (not shown) is mounted between the switch knob 40 and the printed circuit board 70, the switch knob 40 is raised to an initial position when the external force is pressed. In particular, the printed circuit board 70 includes a push switch 74 corresponding to the switch knob 40. Thus, when the switch knob 40 is lowered and the push switch 74 is pressed, a signal such as an air conditioner ON / OFF corresponding to the push switch 74 is generated.

In addition, a cap 30 is formed above the switch knob 40. The cap 30 prevents the switch knob 40 from being directly exposed to the outside of the rotary knob 20 and increases the interior sensation. The cap 30 can be changed in various shapes.

In addition, the rotary knob 20 further forms a guide ring 10 on the upper side. The guide ring 10 serves to prevent the cap 30 from being separated above the rotary knob 20. At this time, the guide ring 10 is preferably detachably fitted to the rotary knob 20. Of course, the guide ring 10 may be integrally formed with the rotary knob 20. The shape of the guide ring 10 can be variously modified.

On the other hand, the switch knob 40 is formed to extend the break rib 110. The breaking rib 110 extends downward from the inside of the switch knob 40 to be in contact with the push switch 74. Thus, the breaking rib 110 serves to support the switch knob 40. Of course, as the switch knob 40 is elastically supported by the elastic member, the breaking rib 110 may not be in contact with the push switch 74. In addition, when the shock is pressed from the outside, the switch knob 40 is forcibly pressed together with the cap 30 and the rotary knob 20, accordingly, the breaking rib 110 is a push switch fixed in position ( 74) and easily breaks down. At this time, the external shock refers to the passenger hit the cap 30 and the rotary knob 20 severely. Thus, the rotary knob 20, the cap 30 and the switch knob 40 are pressed in the direction of the printed circuit board 70, thereby protecting the occupant.

In particular, the switch knob 40 forms a notch groove 120 on both sides of the switch rib 40 on the basis of the portion connected to the break rib 110. The notch groove 120 serves to break the breaking rib 110 as soon as possible by breaking the breaking rib 110 itself and breaking the circumferential surface of the switch knob 40 connecting the breaking rib 110. do.

On the other hand, the switch knob 40 is preferably assembled to move up and down while being guided straight inside the body (50). Thus, the switch knob 40 protrudes the guide rib 142 along the direction of lifting up and down the outer circumferential surface and the body 50 recesses the guide groove 144 to accommodate the guide rib 142. . Therefore, as the guide rib 142 is moved up and down along the guide groove 144, the switch knob 40 is raised and lowered stably in the body 50.

In particular, the signal conductor 60 is preferably rotatably supported by the body 50. Thus, the signal conductor 60 forms a support groove 152 on the inner side, and the body 50 protrudes the support protrusion 154 on the outer circumferential surface so as to be supported inside the signal conductor 60. Therefore, as the support groove 152 of the signal conductor 60 receives the support protrusion 154 of the body 50, the signal conductor 60 is rotatable while maintaining a distance from the printed circuit board 70. do.

At this time, since the support protrusion 154 is inserted into the support groove 152, when an external shock occurs, the signal conductor 60 can maintain a distance from the printed circuit board 70.

Accordingly, the signal conductor 60 further forms a binding release part 156 that guides the support protrusion 154 from the support groove 152 when the external impact of the rotary knob 20 is transmitted.

Here, the binding release portion 156 includes a support rib 157 and the coupling rib 158.

The support rib 157 extends to the outside of the signal conductor 60 to support the lower side of the rotary knob 20 and bend downward with the edge of the signal conductor 60 when a pressing force is generated due to an external impact. In addition, the coupling rib 158 extends upward from the support rib 157 and is coupled to the rotary knob 20.

Therefore, when an external impact is applied to the cap 30 and the rotary knob 20, the support rib 157 is bent outwardly and the support protrusion 154 is separated from the support groove 152. As a result, the signal conductor 60 is pushed to the printed circuit board 70.

At the same time, the break rib 110 of the switch knob 40 is damaged while hitting the printed circuit board 70 or the push switch 74, and thus, the switch knob 40 and the cap 30 are separated from the printed circuit board ( 70) direction.

On the other hand, the rotary knob 20 is supported on the coupling rib 158 by forming a locking step 160 on the lower outer side. This is for the rotary knob 20 to stably push the support rib 157 downward.

Hereinafter, the operation and effect of the rotary push button switch according to an embodiment of the present invention.

Referring to FIG. 6, when an impact applied from the outside is applied, the rotary knob 20 is pushed in the direction of the printed circuit board 70, and the pushing force lowers the support rib 157 and the coupling rib 158. It bends. Then, the support groove 152 of the signal conductor 60 is separated from the support protrusion 154 of the body 50, whereby the signal conductor 60 is lowered by contact with the printed circuit board 70. Done.

Unexplained reference numerals are replaced with those described above.

Referring to FIG. 7, the cap 30 and the switch knob 40 are pushed toward the printed circuit board 70 while the rotary knob 20 is in contact with the printed circuit board 70 by an external impact. Due to this, the breaking rib 110 collides with the printed circuit board 70 or the push switch 74 and is damaged.

Thus, the switch knob 40 is lowered until it comes in contact with the printed circuit board 70.

In addition, since a momentary external shock is applied, the rotary knob 20 pushes the signal conductor 60 toward the printed circuit board 70 while bending the support rib 157. Then, the signal rib 62 of the signal conductor 60 collides with the printed circuit board 70 and is folded, and the signal conductor 60 and the rotary knob 20 are lowered by the signal rib 62. Of course, the signal rib 62 may be broken by itself.

Unexplained reference numerals are replaced with those described above.

Accordingly, the rotary push button switch according to the present invention protects the occupant from impact as the break rib 110 and the signal rib 62 are damaged in a short time when the impact force is transmitted from the occupant.

In addition, the rotary push button switch induces itself to be broken in comparison with a structure in which the printed circuit board 70 is broken so that the printed circuit board 70 is damaged. It can be designed without restriction and mass production is easy.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a view showing a mode switch to which a conventional knob shock absorbing structure is applied.

2 is a perspective view of a rotary push button switch according to an embodiment of the present invention.

3 is an exploded perspective view of a rotary push button switch according to an embodiment of the present invention.

Figure 4 is a bottom exploded perspective view of a rotary push button switch according to an embodiment of the present invention.

5 is a cross-sectional view of a rotary push button switch according to an embodiment of the present invention.

6 and 7 are cross-sectional views showing an internal broken state of the rotary push button switch according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: guide ring 20: rotary knob

30: cap 40: switch knob

50: body 60: signal conductor

70: printed circuit board 110: break rib

120: notch groove 132: operation detection pin

134: serration part 142: guide rib

144: guide groove 152: support groove

154: support protrusion 156: binding

157: support rib 158: combined rib

160: hanging jaw

Claims (7)

A signal conductor for adjusting the strength of the set signal; A body supported inside the signal conductor and connected to a printed circuit board; A switch knob which is formed to be movable up and down inside the body and generates a corresponding signal by pressing a push switch of the printed circuit board when an external press is pressed; A rotary knob formed to be connected to an upper side of the signal conductor and supported by the body and rotated together with the signal conductor by external manipulation; And A break rib formed inside the switch knob to support the switch knob as it comes in contact with the push switch, and to guide the switch knob and the rotary knob to fall down in the direction of the printed circuit board as it is damaged when an external impact occurs. Rotary push button switch comprising a. The method of claim 1, The switch knob is a rotary push button switch, characterized in that to form a notch groove on both sides with respect to the portion connected to the break rib. The method of claim 1, The body forms an operation sensing pin upward; The rotary knob is a rotary push button switch, characterized in that to form a serrated wave-like serration portion for receiving the operation sensing pin in the lower side to give a rotational operation feeling. The method according to any one of claims 1 to 3, The switch knob protrudes a guide rib on an outer circumferential surface thereof; The body is a rotary push button switch, characterized in that to form a guide groove for receiving and guide the guide rib. The method according to any one of claims 1 to 3, The signal conductor forms a support groove on an inner side thereof; The body protrudes a support protrusion on an outer circumferential surface to be supported inside the signal conductor; The signal conductor further comprises a binding release part for inducing the support protrusion from the support groove when the external impact transmission of the rotary knob to the rotary push button switch. The method of claim 5, wherein the binding termination unit, A support rib extending outwardly of the signal conductor to support the lower side of the rotary knob and bent downward together with an edge of the signal conductor when a pressing force is generated; And And a coupling rib extending upward from the support rib and coupled to the rotary knob. The method of claim 6, The rotary knob is a rotary push button switch, characterized in that the engaging jaw formed on the lower outer side is supported by the coupling rib.

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