KR20010011338A - Push type On/off switch - Google Patents

Abstract

PURPOSE: A pushing switch is provided to make successive ON/OFF operations of a switch possible by using a cam operation lever and a cam mechanism. CONSTITUTION: A knob(60) is mounted to an upper portion of a switch case(50) and moves up and down. A push rod(65) of the knob(60) is extended into the switch case(50). A switch body(70) is mounted to a lower portion of a switch case(50). The switch body(70) has a plurality of terminals(75) which are connected to an outer circuit. One end of a contact terminal(77) is connected to one switch terminal(75a) and the other end contacts/separates to/from another switch terminal(75b), so as to turn the switch circuit ON/OFF. A cam operating means(80) is mounted in the switch case(50) and moves up and down by the push rod(65) of the knob(60). A cam means(85) rotates in one or other direction in the switch body according as the cam operating means(80) moves up and down, so as to contact/separate the contact terminal(77) to/from the switch terminal(75).

Description

Push-type switch {Push type On / off switch}

The present invention relates to a push-actuated switch used for on / off operation of a fog light or an emergency light of an automobile, and in particular, by constituting a switch in a counter contact method using a cam operating lever and a cam mechanism, and assembling the overall structure simply. It is a push-operated switch that reduces the number of parts and reduces manufacturing costs.

Normally, a fog light switch or an emergency light switch of an automobile is turned on by pressing an operation button, and is pressed off by pressing an operation button again.

1 is a front view showing a fog light switch of the prior art of the automobile switch as described above, Figures 2 and 3 is a cross-sectional view of the line A-A and B-B of FIG.

The fog light switch of the prior art, as shown in Figs. 1 to 3 and the switch operating portion (3) which is moved linearly according to the operation of the large push button (1) and the contact terminal (2) is fixed therein, and A switch case 4 fixed to a panel of the vehicle body in a state in which the switch actuating portion 3 is fitted to be linearly movable, and positioned in the switch actuating portion 3 to be supported by the switch case 4 and to an external circuit. And a terminal body (5) connected to the switch body (6), the switch body part (6) having an on-off operation by sliding contact of the contact terminal (2).

Then, pressing the push button (1) once between the switch operating part (3) and the switch body part (6) so that the switch operating part (3) is in the on operation position and presses it again to turn off the switch operating part (3). A positioning member 7 is provided to be in position, and a return spring 8 is provided to push the switch operating portion 3 to the off operation position.

Here, the positioning member 7 is a normal operation member composed of a cam 7a, a lock pin 7b, and the like fixed to the switch operating portion 3 and the switch body portion 6, respectively.

In addition, two lamps 9 are provided in the switch body 6, and a lamp terminal 10 is connected to supply power to the lamps 9.

Here, one lamp (9) is a lighting lamp that is turned on when the switch-on operation, the other lamp (9) is a position notification lamp that informs the position of the fog light switch is connected to the power by the driver's operation at night driving to be.

In the fog light switch of the prior art made as described above, when the user presses the push button 1, the switch actuating unit 3 overcomes the elastic force of the return spring 8 and moves to the inside of the switch case 4, wherein the switch The switch is turned on by contacting the terminal terminal 5 of the switch body portion 6 while the contact terminal 2 of the actuating portion 3 slides inward.

Of course, the switch operating portion 3 remains in the on operating position by the positioning member 7, and the lamp indicating the switch on operation of the two lamps 9 is turned on.

When the switch is turned on in the above state, the circuit is connected and the fog light is turned on.

In such a state, in order to turn off the fog light switch, when the push button 1 is pressed again, the on-operation position of the positioning member 7 is released and the switch operating part 3 is switched by the return spring 8. It moves to the outside of the case 4.

At this time, the contact terminal 2 of the switch operating part 3 is separated from the terminal terminal 5 of the switch body part 6, the switch is turned off, the lamp 9 is flickered, and the fog light circuit is also turned off, and the fog light blinks. .

As a result, in the fog light switch or the emergency light switch of the related art as described above, the contact terminal 2 of the switch operating part 3 is connected to the terminal terminal 5 of the switch body part 6 according to the operation of the push button 1. The switch on / off operation is made by sliding in contact with.

However, the conventional push-operated switch as described above is configured to turn the switch on and off in a sliding contact manner, so that the contact load capacity of the switch is about 5A, so that a separate relay circuit must be provided to ensure stability of the switch operation. It becomes possible.

Therefore, the above-described switch of the prior art is not suitable for a high load switch of about 10A, and in order to compensate for this disadvantage, a separate relay circuit must be provided so that the structure of the switch is complicated, and the cost also increases. .

In addition, the conventional push-operated switch as described above is provided with a positioning member (7) consisting of a cam (7a), a lock pin (7b), etc., press once to switch on, and press once to switch off. Since the switch structure is configured to be complicated, the manufacturing cost is also increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and by using a cam operating lever and a cam mechanism to enable continuous switch on / off operation and at the same time configure the switch in a counter contact method, the overall switch structure is simplified. In particular, the present invention provides a push-actuated switch that can be used reliably for high loads without having a relay circuit.

The push-actuated switch of the present invention for realizing the above object comprises a switch case; A knob coupled to an upper portion of the switch case and vertically moved, and having a push rod extending into the switch housing; A switch body coupled to the lower part of the switch case and having a plurality of terminal terminals fixed to the external circuit; A contact terminal having an end portion connected to the one terminal terminal and having a tip portion spaced apart from each other in a contact manner with respect to the other terminal terminal to turn on / off a switch circuit; Cam operating means installed in the switch case and vertically moved by a push rod of the knob; It is possible to be characterized in that it consists of a cam means for contacting the contact terminal to the terminal terminal while rotating to one side or the other side in accordance with the vertical movement of the cam operating means in the switch body.

1 is a front view showing a fog light switch of the prior art,

2 is a cross-sectional view taken along the line A-A of FIG. 1;

3 is a cross-sectional view taken along the line B-B of FIG.

4 is a plan view, front view, side view, rear view, showing a push-actuated switch according to the present invention;

5 is a cross-sectional view taken along the line C-C in FIG. 4;

FIG. 6 is a sectional view taken along the line D-D and line E-E of FIG. 5;

7 is a cross-sectional view taken along the line F-F and line G-G of FIG. 5;

8 is a cross-sectional view taken along the line H-H in FIG. 4;

9 are operational state diagrams of a switch according to the invention.

<Explanation of symbols for main parts of drawing>

50: switch case 55A, 55B: lamp

60: knob 65: push rod

70: switch body 73: connector terminal

75: switch terminal 77: contact terminal

77a: elastic portion 80: cam operating lever

81: crosspiece 82: push lever

83: elastic lever 85: rotating cam

86: cam portion 87: groove portion

88: lever fitting

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 4 is a plan view, front view, side view, rear view showing the appearance of the push-actuated switch according to the present invention.

As shown in FIG. 4, the push-operated switch of the present invention is coupled to an upper portion of the switch case 50 and a switch case 50 whose external configuration is fixed to a panel of a vehicle body, and the switch according to the user's pressing. The switch body 70 is exposed to a knob 60 that is linearly moved so as to turn on / off, and a plurality of terminal terminals 73 coupled to a lower portion of the switch case 50 and connected to an external circuit. Is done.

Here, the knob 60 is an example of a fog light switch of the vehicle, the shape of the fog light is illustrated on the upper surface.

5 to 8 are cross-sectional views showing the internal structure of the push-operated switch according to the present invention, Figure 5 is a cross-sectional view of the CC line direction of Figure 4, Figure 6 is a cross-sectional view of the DD line, EE line direction of Figure 5 7 is a sectional view taken along the FF line and the GG line in FIG. 5, and FIG. 8 is a cross sectional view taken along the HH line in FIG. 4.

5 to 8, the components of the present invention will be described in more detail as follows.

First, as shown in FIGS. 5 and 6, the knob 60 is capped on the switch case 50 and moved upward and downward, and a push rod 65 is extended in the inside. In addition, a return spring 67 is provided between the upper portion of the switch case 50 and is always provided with an elastic force in an upward direction.

Next, the switch case 50 is formed with a hole 51 penetrated in the vertical direction to allow the push rod 65 of the knob 60 to pass therethrough, and also two lamps 55A at the upper center ( The lamp mounting hole 52 is formed so that 55B) can be installed. And, as shown in Figure 7, the guide groove 56 is formed in the vertical direction so that the cam operating lever 80 can move up and down.

Next, the switch body 70 is inserted into and fixed to the inner side of the lower portion of the switch case 50, as shown in Figure 6, the upper terminal indentation portion protruding long so that the two lamps (55A, 55B) are connected At the same time as the 71 is formed, the switch terminal 75 connected with the connector terminal 73 is exposed at the center portion.

In addition, a connector portion 72 is formed at a lower portion thereof so as to be connected to an external circuit, and a connector terminal 73 connected to the lamps 55A and 55B and the switch terminal 75 is formed in the connector portion 72. Exposed.

Two lamps 55A and 55B connected to the terminal terminal 73 are installed on the upper portion of the switch body 70, and one of the lamps 55A is an external switch such as a night light switch or the like. (Not shown) is turned on by the operation of the fog light switch to inform the position of the switch, the other lamp 55B is switched on / off in accordance with the contact / separation of the switch terminal 75 and the contact terminal 77 switch operating state You will be informed.

In addition, the contact terminal 77 is formed in an elongated plate shape as shown in FIG. 8, and an end portion thereof is connected to one switch terminal 75a, and the end portion thereof is contacted and spaced apart from each other in a contact manner with respect to the other switch terminal 75b. It is installed to turn on / off.

In the center of the contact terminal 77, a rounded bent elastic portion 77a is formed.

Next, inside the switch case 50 and the switch body 70 as described above, when the knob 60 is operated, the switch terminal 75 and the contact terminal 77 are in contact with each other so that the switch is turned on. Next, the cam operating lever 80 and the rotating cam 85 are provided to be turned off.

The cam operating lever 80 is installed in the switch case 50 so as to be linearly moved upward and downward by the push rod 65 of the knob 60, and the rotation cam 85 is the switch body 70. The contact terminal 77 is spaced apart from the contact contact with the switch terminal 75 while rotating to one side or the other side in accordance with the vertical movement of the cam operating lever 80 in the upper portion of the.

The cam actuating lever 80 is positioned below the push rod 65 and moves up and down along the guide 56 of the switch case 50, and the center of the cross rod 81. The push lever 82 which extends to the upper portion of the rotation cam 85 to rotate the rotation cam 85 to one side or the other side, and extends from both sides of the crosspiece 81 so that the end portion is connected to the rotation cam 85. It is composed of an elastic lever 83 is inserted to provide an elastic force to move the crosspiece 81 in the upward direction.

In addition, both ends of the rotation cam 85 are rotatably fixed in the switch body 70 as shown in FIG. 7 and upwardly rotated by the push lever 82 of the cam operation lever 80 on the upper surface thereof. A protruding cam portion 86 is formed, and as shown in FIG. 6, a groove portion 87 on which the elastic portion 77a of the contact terminal 77 is supported is formed.

The contact terminal 77 is contacted / separated from the switch terminal 75 while the front end portion moves up and down in accordance with the rotation of the rotation cam 85 because the elastic portion 77a is supported by the groove portion 87.

In addition, both side portions of the rotation cam 85 are provided with a lever fitting portion 88 which penetrates up and down so that the elastic lever 83 of the cam operation lever 80 is fitted.

Here, the elastic lever 83 of the cam operation lever 80 is formed to be wider toward the upper side, the lever fitting portion 88 of the rotation cam 85 can be inserted only the lower side of the elastic lever 83. Since the elastic lever 83 is not fully inserted into the lever fitting portion 88 when the cam operation lever 80 is lowered and is formed in a size, the elastic lever 83 is bent as shown in FIG.

Referring to the operation of the push-actuated switch according to the present invention configured as described above are as follows.

When the switch according to the present invention is used as a fog light switch, when the night light switch (not shown) is turned on during night driving, power is supplied through the terminal terminal 73 so that one of the two lamps 55A and 55B ( 55A) lights up to indicate the position of the fog light switch.

Of course, the lamp 55A is in a flashing state because the night lighting switch is normally turned off when driving during the day.

In this state, the switch operation process will be described with reference to FIG. 9. In the off state in which the fog light switch is not operated, as shown in FIG. 9A, the knob 60 comes out by the elastic force of the return spring 67. The cam operating lever 80 is also in a state of moving upward.

Since the contact terminal 77 is not pressed by the rotation cam 85, the contact terminal 77 is spaced apart from the switch terminal 75 to maintain the switched off state.

In such a state, when the knob 60 is pressed as shown in FIG. 9B to turn on the fog light switch, the cam operating lever 80 is lowered by the push rod 65, and at this time, the cam operating lever 80. The rotary cam 85 is lifted to the right by the push lever 82 of the &lt; RTI ID = 0.0 &gt;), &lt; / RTI &gt; so that the contact terminal 77 contacts the switch terminal 75 so that the switch It works on.

When the knob 60 is released after the contact terminal 77 and the switch terminal 75 are turned on as described above, the knob 60 is raised by the return spring 67 as shown in FIG. The cam operating lever 80 is also raised by the elastic lever 83.

In addition, the push lever 82 of the cam operating lever 80 is also raised to be positioned on the opposite cam surface of the rotation cam 85 to prevent the rotation cam 85 from rotating to the left side, and the contact terminal 77 ) And the switch terminal 75 remain in contact with each other, so that the switch-on state is maintained.

When the knob 60 is pressed again in the above switch-on state, as shown in FIG. 9D, the push lever 82 of the cam operating lever 80 rotates the rotation cam 85 to the left, and thus the contact terminal. The 77 and the switch terminal 75 are spaced apart to be switched off. When the knob 60 is released in this state, only the cam operating lever 80 is raised as shown in FIG. 9A and the switch off state is maintained.

Therefore, the push-operated switch of the present invention configured and operated as described above can be easily applied to a high load switch without having a relay circuit because the switch is configured to operate on / off in a counter contact manner. Of course, it has the advantage of improving the durability of the switch and the reliability of the switch.

In addition, since the push-operated switch of the present invention is configured to enable continuous switch on / off operation using a cam operating lever and a cam mechanism, the switch structure can be simplified and the manufacturing cost can be reduced. There is also an advantage.

Claims (6)

Switch case; A knob coupled to an upper portion of the switch case and vertically moved, and having a push rod extending into the switch housing; A switch body coupled to a lower portion of the switch case and having a plurality of terminal terminals and switch terminals connected to an external circuit; An end terminal connected to the one switch terminal, and a contact terminal for turning the switch circuit on / off while the front end is spaced in contact with the other switch terminal in a contact manner; Cam operating means installed in the switch case and vertically moved by a push rod of the knob; And a cam means for contacting and spaced apart the contact terminal from the switch terminal while rotating to one side or the other side in accordance with the vertical movement of the cam operating means from the inside of the switch body. The method of claim 1, A plurality of lamps connected to the terminal terminals are installed in the switch case, one lamp of which is operated by an on / off operation of an external switch, and the other lamp of the contact / contact between the switch terminal and the contact terminal. Push-actuated switch, characterized in that operated according to the separation. The method of claim 1, And the contact terminal extends from the front end thereof so that an end thereof is supported by the cam means such that an elastic part is formed so that the front end moves up and down with the rotation of the cam means to contact / separate the switch terminal. The method of claim 1, The cam operating means is located in the lower portion of the push rod is moved across the guide along the guide of the switch case, a push lever extending from the center of the cross to the upper portion of the cam means to rotate the cam means to one side or the other side; And an elastic lever extending from both sides of the crossbar and having an end portion fitted to the cam means to provide an elastic force to move the crossbar in an upward direction. The method according to any one of claims 1, 3, and 4, Both ends of the cam means are rotatably fixed in the switch body, a cam portion protruding upwardly by the cam actuating means is formed on the upper surface thereof, and a groove portion is formed on the side thereof to support the elastic portion of the contact terminal. Push-actuated switch. The method of claim 5, The cam means is a push-actuated switch, characterized in that the lever fitting portion is formed on both sides of the elastic lever of the cam operating means is fitted.