JPH0735200U - Remote control mirror switch - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the waterproofness of the remote control mirror switch, and to provide the one with excellent safety that does not cause malfunction or electrical failure on the board etc. on which electric circuit parts are mounted. thing. [Structure] A rubber cover 4 is provided so as to cover an inner case 5 provided with an actuator 6 in a case 2 provided with a knob 3 for switching left and right mirrors and a push plate 1, and between the inner case and the holder. The packing 8 having the substrate 7 and the seal lip provided therebetween is sandwiched between the rubber cover 4 and the rubber cover 4, and the wall thickness reinforcing portion 42 is formed on the periphery of the rubber cover 4 to hermetically seal the outer circumference of the inter case.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a switch for a remote control mirror of an automobile, and particularly to a waterproof structure of a mirror switch.

[0002]

[Prior art]

 Because this type of switch for remote control mirrors is installed on the door armrests, console boxes, etc., rainwater, drinking water, etc. can easily enter the switch and contact the circuit components. When the left and right side mirrors of the vehicle are remote-controlled in the vehicle compartment, the switch case 2 has the mirrors on the switch case 2 in four directions (up, down, left, left, right) as shown in FIGS. 4 and 5. It is provided with a push plate 1 operated to the right) and a knob 3 for switching between left and right, and further, an inner case 5 having actuators 6 projecting near four corners is provided so as to be covered with a rubber cover 4 from above. Furthermore, the switch is assembled by inserting the packing 8 between the substrate 7 and the holder 9 and engaging and locking the engaging projection provided on the outer periphery of the holder 10 in the groove of the side wall of the case 1. is there. The moderating plate 9 and the terminal 12 are inserted and molded when the connector part 11 is integrally molded with the holder 10 to form a holder assembly.

[0003]

[Problems to be solved by the device]

 However, in the conventional waterproof structure for the remote control mirror switch described above, the rubber cover 4 is provided so as to cover the outer side of the inner case 5, and the packing 8 is only sandwiched between the substrate 7 and the holder 10. Water penetrates into the switch through the cutouts on the top or side of the switch, and since the inner case 5 and the holder 10 are only made of resin, water passes through the gap between them and the internal circuit parts. There has been a problem that water enters the substrate 7 on which is mounted and becomes an electric contact and the switch function is impaired.

The present invention has been made to solve the above problems, and its purpose is to prevent water from entering the inside of the remote control mirror switch, have excellent waterproofness, and have electrical characteristics. It is intended to provide a remote-control mirror switch that is good in terms of safety and does not cause a failure.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the remote control mirror switch of the present invention is provided with a knob for switching between left and right mirrors, a case provided with a push plate for operating in four directions, and an actuator provided in the case. And an inner case, a rubber cover for covering the inner case, and a substrate on which circuit parts are placed. A packing having a seal lip is sandwiched between the inner case and the holder, and the rubber cover is provided. The outer periphery of the inner case is hermetically sealed by forming a wall thickness reinforcing portion on the periphery of the inner case.

[0006]

[Action]

 With the above configuration, the inner diameter of the rubber cover is made slightly smaller than the outer diameter of the inner case, the inner case is covered so as to expand the rubber cover, and the wall thickness formed on the outer periphery of the inner case at the periphery of the rubber cover. The reinforcing part is pressed into a sealed state to prevent water and the like from entering the circuit board on which the circuit parts are placed, and there is no malfunction or electrical failure, providing excellent safety. In addition, since a seal lip is provided on the peripheral flange of the packing and the packing is sandwiched between the inner case and the holder, the airtightness is further improved and the electrical contact between the rubber cover and the packing is improved. The board on which the circuit parts are placed can be sealed in a sandwich shape, improving the waterproofness of the switch.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a main part of a remote control mirror switch, FIG. 2 is a perspective view of the switch in an exploded state, and FIG. 3 is a sectional view showing a part of a packing.

The remote control mirror switch according to the present invention is a switch knob 3 for switching between the left side mirror and the right side mirror of the vehicle body, and a push plate for operating the four directions of square, up, down, left and right. 1 is provided with a switch case 2. A shaft portion 31 is provided on the knob 3. Further, the inner case 5 is provided with an actuator 6 which is provided in the case 2 and which has four protrusions near the four corners thereof, and a rubber cover 4 which covers the inner case 5 from above the inner case 5. The rubber cover 4 has a thickness reinforcement portion 42 formed on a peripheral edge 41 thereof. The rubber cover 4 is formed such that the inner diameter of the rubber cover 4 is slightly smaller than the outer diameter of the inner case 5. When the inner case 5 is covered with the unfolded state 4, the thick-walled reinforcing portion 42 provided on the peripheral edge 41 of the rubber cover 4 on the outer peripheral side 51 of the inner case 5 is elastically pressed into a tight contact state.

Further, a board 7 on which circuit components are mounted is provided, and the board 7 is sandwiched between a holder 10 via an inner case 5 and a packing 8. A sealing lip 81 on the upper surface and a sealing lip 82 on the lower surface are formed on the peripheral flange of the packing 8, and the sealing lip 81 on the upper surface of the packing 8 is brought into contact with the outer peripheral lower end of the inner case 5, and further the lower surface. The seal lip 82 is in contact with the upper surface of the outer peripheral edge of the holder 8. Therefore, the packing 8 is made watertight by the inner case 5 and the holder 10 in close contact with the upper surface seal lip 81 and the lower surface seal lip 82 with certainty.

Reference numeral 9 is a moderation plate, which is inserted when the connector part 11 is integrally molded with the terminal 10 together with the terminal 12 to form a holder assembly. However, the engaging protrusion provided on the outer periphery of the holder 10 is fitted into the engaging groove of the case.

As is clear from the above description, in the remote control mirror switch of the present invention, the inner diameter of the rubber cover is formed slightly smaller than the outer diameter of the inner case, and the inner case is covered so as to expand the rubber cover. On the outer periphery of the inner case, the thick wall reinforcement part formed on the peripheral edge of the rubber cover is elastically pressed into a hermetically sealed state to prevent water from entering the circuit board on which the circuit parts are mounted, preventing malfunctions and electrical Excellent safety with no breakdowns. In addition, a seal lip is provided on the peripheral flange of the packing, and this packing is sandwiched between the inner case and the holder, further improving the airtightness and making electrical contact between the rubber cover and the packing. The substrate on which the circuit components are placed can be sealed like a sandwich, improving the waterproofness of the switch.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a remote control mirror switch according to an embodiment of the present invention.

FIG. 2 is a perspective view of the switch in an exploded state.

FIG. 3 is a cross-sectional view showing a seal lip of a packing.

FIG. 4 is a plan view of a conventional remote control mirror switch.

FIG. 5 is a cross-sectional view of a conventional remote control mirror switch.

[Explanation of symbols]

 1 Push Plate 2 Case 3 Knob 4 Rubber Cover 42 Wall Thickness Reinforcement 5 Inner Case 6 Actuator 7 Board 8 Packing 81 Seal Lip (Upper) 82 Seal Lip (Lower) 10 Holder

Claims (1)

[Scope of utility model registration request] 1. A knob for switching between left and right mirrors, a case provided with a push plate for operating in four directions, an inner case provided with an actuator arranged in the case, and a rubber cover for covering the inner case. , A circuit board on which circuit parts are placed, a packing provided with a seal lip is sandwiched between the inner case and a holder, and a wall thickness reinforcing portion is formed on a peripheral edge of the rubber cover. A remote control mirror switch whose outer circumference is sealed.