KR102432459B1 - Elevator button with waterproofing function - Google Patents

Abstract

The present invention relates to an elevator button with a waterproof function, wherein when water penetrates between an outer housing and a button unit, the water is blocked by a waterproof cover sealing and covering a front surface of a board so as to prevent the water from penetrating the board, and when a buffer protrusion of the waterproof cover, which is pressed by a touch protrusion of the button unit when the button unit is pressed, presses and operates a tact switch on the board so as to prevent the external pressure from being applied to the tact switch. According to the present invention, a waterproof cover is installed to surround the outer surface of the board, a front surface of the board is sealed and covered by the waterproof cover, and a sealing cover of the board prevents the generation of a gap between the board and the waterproof cover. Accordingly, there is no risk of water flowing into the board. Since the board is waterproof with the waterproof cover, there is no risk that the board will be electrically damaged. Since the tact switch is covered with the buffer protrusion of the waterproof cover, there is no risk of water penetrating the tact switch and causing electrical damage. In particular, when the buffer protrusion is pressed by the touch protrusion, the tact switch is pressed and operated so as to buffer the external pressure applied to the tact switch. Accordingly, the damage rate of the tact switch is significantly reduced, and the elevator button can be used for a long time. Therefore, product reliability can be improved.

Description

Elevator button with a waterproof function {Elevator button with waterproofing function}

The present invention relates to an elevator button, and more particularly, by placing a waterproof cover between the button unit and the substrate installed in the outer housing, and covering the front surface of the substrate with the waterproof cover so as to be sealed, so that it penetrates between the button unit and the outer housing It relates to an elevator button having a waterproof function that prevents moisture from coming into contact with a substrate by being blocked by a waterproof cover.

In general, elevators, escalators, etc. are installed in various buildings built for residential or business purposes in order to move people or things in a vertical direction. In particular, the elevator is a representative transportation means having the advantage of quickly moving people or things in the elevator in a high-rise building to the corresponding floor.

As for the elevator installed in the building, when the height of the building exceeds 31m, the installation of an emergency elevator is compulsory. When firefighters use the elevator for reasons such as fire, water may flow into the elevator.

That is, when a fire occurs inside a building, an automatic fire extinguishing facility such as a sprinkler installed on the ceiling is activated by detecting it, and such a sprinkler is installed on the ceiling and sprays water to spread downward. .

In addition, since firefighters spray water with a fire hose to extinguish a fire, water may flow into the elevator.

Patent Document 1 shows a conventional elevator button device having a waterproof function, and with reference to this, a guide ring having an open upper and lower ends, and a fulcrum portion formed in an annular shape along the inner wall surface of the lower end,

The PCB fastened to the bottom of the guide ring and the upper edge is covered by the rib,

A knob fastened to the top of the guide ring to form a dial on its upper surface,

A rod that is positioned between the board and the knob, and the bottom edge is adhesively fixed to the upper surface of the fulcrum part of the guide ring by the first adhesive part, and is integrally connected with the knob by covering the top of the PCB, and pressing and pressing the tekt switch of the board in the center part. It is composed of a plate forming a

Here, the rod of the plate maintains a state in contact with the pressing part, and as the dial is pressed and pressed, the knob is pressed while pressing the pressing part, and the rod is moved downward by the pressing part to press and operate the tekt switch.

At this time, a spring is installed between the knob and the plate, and the knob pressed downward by the restoring force of the spring is returned to its original position.

In particular, when moisture permeates through the elevator button, the water flows in along the guide ring and is blocked on the ribs of the plate and guide ring, thereby preventing water from penetrating into the substrate.

However, in Patent Document 1 as described above, when the knob is pressed, the rod directly strikes the tekt switch, repeatedly external pressure is applied to the tekt switch, and the repetitive external pressure causes damage to the tekt switch, and the function of the elevator button is lost. , In addition, the water introduced into the guide ring penetrates into the substrate through the gap between the plate and the supporting jaw of the guide ring, causing electrical damage to the substrate, and in particular, among the water penetrating into the guide ring, the water penetrating into the guide hole of the plate. Water comes into direct contact with the tact switch on the rod, causing electrical damage to the tact switch, and the function of the first adhesive is lost due to the water penetrating into the gap between the plate and the fulcrum of the guide ring. There is a problem in that the plate is detached, and at the same time as the plate is detached, the waterproof function is lost, causing damage to the PCB and lowering the reliability of the product.

US 10-2321612 B1

The present invention is to solve the above-described problems, and an object of the present invention is to form a mark of a predetermined pattern on the front end of the outer housing, but fasten the button part having the touch protrusion and the fastening protrusion on the rear side, and the outer housing It is fastened to the rear end and provided with a substrate having a tact switch and an LED element formed on the front side, and is fixed in close contact with the outer surface of the substrate between the substrate and the button part to seal and cover the front of the substrate, but a buffer that presses the tact switch in the center When a waterproof cover with projections is installed, and an elastic spring is installed between the fastening projections of the button part and the seating groove of the waterproof cover, when water penetrates between the outer housing and the button part, this water is caused by the waterproof cover sealing the front of the board. It is blocked and prevents water from penetrating into the substrate, and at the same time, when the button part is pressed, the buffer projection of the waterproof cover that is pressed on the touch projection of the button part presses the tact switch of the substrate, thereby buffering the external pressure applied to the tact switch. It relates to an elevator button having a waterproof function.

In order to achieve the object of the present invention as described above, an elevator button having a waterproof function according to the present invention includes: a hollow outer housing with an open front and rear; It is movably inserted and caught in the front end of the outer housing, forms a mark formed of any one of letters, numbers, or figures of a translucent material on the front side, forms a touch protrusion in the rear center part, and a fastening protrusion on the edge of the touch protrusion a button portion forming a; a substrate fastened to the rear end of the outer housing, forming a tact switch on the front side, and forming a plurality of LED elements on the edge of the tact switch to irradiate light in the direction of the mark of the button part; It is located between the substrate and the button part, is closely fixed to the outer surface of the substrate so as to cover and seal the entire surface of the substrate, form a plurality of seating grooves on the front edge, and cover the tact switch with a silicon material in the central part. a waterproof cover formed with a buffer protrusion that is pressed on the touch protrusion of the button unit and presses the tact switch; An elastic spring having one end fixed to the fastening protrusion of the button part, and the other end being fastened to the seating groove of the waterproof cover so that the button part pressed by external pressure returns to its original state; characterized in that it comprises a.

In the elevator button having a waterproof function according to the present invention, the outer housing forms a plurality of stoppers protruding at a predetermined interval along the inner wall surface, and forms a clasp between the stoppers, the button portion, Doedoe inserted into the front end of the outer housing, the bottom surface is caught by the stopper, the depth of entering into the outer housing is limited, the lower edge is caught by the locking jaw to further form a stopper to block the departure to the front end of the outer housing characterized.

In the elevator button having a waterproof function according to the present invention, the buffer protrusion of the waterproof cover is formed to seal the central edge of the waterproof cover, and moisture penetrates in the direction of the substrate through the central edge of the waterproof cover. It is characterized by blocking.

In the elevator button having a waterproof function according to the present invention, the waterproof cover is formed of a silicone material to protrude in a ring shape from the bottom edge of the buffer protrusion, and the bottom surface is in close contact with the tact switch of the substrate, the tact switch It is characterized in that it further forms a packing ring to block the penetration of moisture.

In the elevator button having a waterproof function according to the present invention, the waterproof cover is fixed in close contact with the outer surface of the substrate on the inner wall surface edge, characterized in that it further forms an O-ring for sealing the gap between the waterproof cover and the substrate. do.

In the elevator button having a waterproof function according to the present invention, the waterproof cover is formed to have a predetermined color with a transparent material, and it is characterized in that the light color of the LED element passing through the waterproof cover is changed.

According to the present invention, the waterproof cover is installed so as to surround the outer surface of the substrate, the front of the substrate is sealed and covered by the waterproof cover, and the gap between the substrate and the waterproof cover is prevented by the sealing cover of the substrate, and water flows into the substrate. There is no fear of being damaged by electrical damage by waterproofing the substrate with a waterproof cover, and there is no fear of causing electrical damage due to water penetration into the tact switch by covering the tact switch with the buffer projection of the waterproof cover. As the buffer protrusion is pressed against the touch protrusion, the tact switch is pressed and operated, so that the external pressure applied to the tact switch is buffered. There are advantages.

1 is a perspective view showing an elevator button having a waterproof function according to the present invention.
Figure 2 is an exploded perspective view of the elevator button having a waterproof function according to the present invention.
Figure 3 is an exploded perspective view of Figure 2 viewed from the rear.
Figure 4 is a partially cut-away perspective view of the elevator button having a waterproof function according to the present invention.
5 is a side cross-sectional view of the elevator button having a waterproof function according to the present invention.

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

1 to 5 , the outer housing 100 is formed in a hollow shape with an open front and rear.

The outer housing 100 allows the substrate 300 and the waterproof cover 400 to be accommodated therein.

The outer housing 100 exposes the output terminal 303 formed on the substrate 300 to the outside to form a through hole 103 that allows a wiring to be connected to the output terminal 303 on the outer surface.

The shape of the through hole 103 preferably corresponds to the shape of the output terminal 303 of the substrate 300 .

The outer housing 100 forms a plurality of protruding stoppers 101 to be spaced apart from each other at a predetermined interval along the inner wall surface, and a locking protrusion 102 is formed between the stoppers 101 .

The stopper 101 locks the rear surface of the button unit 200 to prevent the button unit 200 from entering the outer housing 100 by a predetermined depth or more.

The clasp 102 allows the clasp 204 of the button unit 200 to be engaged, thereby preventing the button unit 200 from being separated from the outer housing 200 .

The outer housing 100 allows the button unit 200 to flow forward and backward in proportion to the distance between the stopper 101 and the locking jaw 102 .

The front end of the outer housing 100 is closed by the button unit 200 , and the rear end is closed by the substrate 300 .

The button unit 200 is movably inserted and caught in the front end of the outer housing 100, and forms a mark 201 formed of any one of letters, numbers, or figures of a translucent material on the front side, and touches the rear center portion A protrusion 202 is formed, and a fastening protrusion 203 is formed on the edge of the touch protrusion 202 .

The button unit 200 operates the tact switch 301 of the substrate 300 while moving in the inner direction of the outer housing 100 by external pressure.

The button unit 200 compresses the elastic spring 500 while being pressed, and is pressed forward by the elastic spring 500 restored to its original state, and returns to its original position.

The button unit 200 allows the light irradiated from the substrate 300 to pass through the mark 201, so that whether the tact switch 301 of the substrate 300 is operated or not is identified from the outside.

The button unit 200 is inserted into the front end of the outer housing 100, the bottom surface is caught by the stopper 101, the depth of entering into the outer housing 100 is limited, the bottom edge of the engaging projection 102 ) to further form a stopper 204 to block the outer housing 100 from being separated from the front end.

The button unit 200 flows back and forth at the front end of the outer housing 100 in proportion to the distance between the stopper 101 of the outer housing 100 and the locking jaw 102, and the tact switch 301 ) works.

The mark 201 is formed on the front surface of the button unit 200 to identify the function of the button from the outside.

The touch protrusion 202 is in close contact with the buffer protrusion 402 of the waterproof cover 400 , and presses the buffer protrusion 402 in the direction of the tact switch 301 .

When the touch protrusion 202 is pressed by external pressure, it is preferable to press and press the buffer protrusion 402 so as to be spaced apart from the tact switch 301 .

The fastening protrusion 203 allows one end of the elastic spring 500 to be press-fitted, so that the elastic spring 500 is fixed to the rear surface of the button unit 200 .

It is preferable that a plurality of the fastening protrusions 203 are formed in an annular shape along the rear edge of the button unit 200 .

The substrate 300 is fastened to the rear end of the outer housing 100 , and forms a tact switch 301 on the front side, and a plurality of marks 201 on the rim of the tact switch 301 are formed on the button unit 200 . ) to form the LED element 302 irradiating light in the direction.

It is preferable that a single output terminal 303 is formed on the upper edge of the substrate 300 .

The output terminal 303 is connected to a wiring, and outputs a pressing operation signal of the tact switch 301 to the outside.

The output terminal 303 is inserted into the through hole 103 of the outer housing 100 and exposed to the outside of the outer housing 100 .

The tact switch 301 is formed in the front central portion of the substrate 300 and comes into contact with the buffer projection 402 of the waterproof cover 400 .

The tact switch 301 is pressed by the buffer protrusion 402 pressed by the touch protrusion 202 , and outputs a signal to the output terminal 303 .

The tact switch 301 is restored to its original state when the pressing of the buffer protrusion 402 is released after being pressed by the buffer protrusion 402 .

The LED element 302 irradiates light so that the light is transmitted in the direction of the mark 201 .

The LED element 302 receives a press operation signal of the tact switch 301 and irradiates light.

The substrate 300 is hermetically covered by the waterproof cover 400 to prevent electrical damage caused by water.

The waterproof cover 400 is positioned between the substrate 300 and the button unit 200, is closely fixed to the outer surface of the substrate 300 so as to cover and seal the entire surface of the substrate 300, and has a plurality of A buffer protrusion that forms a seating groove 401 and is pressed by the touch protrusion 202 of the button unit 200 while covering the tact switch 301 with a silicon material in the central portion to press and press the tact switch 301 402 .

The waterproof cover 400 is preferably formed of a transparent material so that the light irradiated from the LED element 302 of the substrate 300 is irradiated in the direction of the mark 201 .

The waterproof cover 400 allows the substrate 300 to enter the rear end, and wraps and covers the outer surface of the substrate 300 .

The waterproof cover 400 is formed of a plastic material to seal and cover the front surface of the substrate 300 .

The seating groove 401 supports the elastic spring 500 by allowing the elastic spring 500 fixedly installed on the fastening protrusion 203 of the button part 200 to be seated.

The seating groove 401 is formed to correspond to the fastening protrusion 203 , and supports the elastic spring 500 .

The buffer protrusion 402 buffers the external pressure applied to the tact switch 301 .

The buffer protrusion 402 of the waterproof cover 400 is formed to seal the central edge of the waterproof cover 400, and moisture penetrates in the direction of the substrate 300 through the central edge of the waterproof cover 400. block that

The waterproof cover 400 is made of a silicone material and is formed to protrude in a ring shape from the bottom edge of the buffer protrusion 402, the bottom of which is in close contact with the tact switch 301 of the substrate 300, the tact switch 301 ) to further form a packing ring 403 to block the penetration of moisture.

The packing ring 403 is press-fitted in close contact with the peripheral edge of the tact switch 301 to seal and cover the tact switch 301 .

The packing ring 403 is formed to be detachably attached to, or integrally formed with, the rear central portion of the waterproof cover 400 to prevent water from penetrating.

The waterproof cover 400 is fixed to the outer surface of the substrate 300 on the inner wall edge, and further forms an O-ring 404 sealing the gap between the waterproof cover 400 and the substrate 300 .

The O-ring 404 prevents water from penetrating into a gap between the waterproof cover 400 and the substrate 300 .

The O-ring 404 is press-fitted between the waterproof cover 400 and the substrate 300 to seal a gap between the waterproof cover 400 and the substrate 300 .

The waterproof cover 400 is formed of a transparent material to have a predetermined color, and changes the color of the light of the LED element 302 passing through the waterproof cover 400 .

The waterproof cover 400 is formed by injection molding a pigment having a predetermined color, so that the color of the waterproof cover 400 is determined.

The waterproof cover 400 transmits the light irradiated from the LED element 302 as it is, and the color of the light is transformed to correspond to the color of the waterproof cover 400 , and the mark 201 of the button part 200 . to allow the color changed to be transmitted.

One end of the elastic spring 500 is fitted and fixed to the fastening protrusion 203 of the button unit 200, and the other end is fastened to the seating groove 401 of the waterproof cover 400, and the button pressed by external pressure. The unit 200 is returned to its original state.

The elastic spring 500 is compressed by being pressed by the button unit 200, and the button unit 200 returns to its original position while being restored to its original state when the pressure is released.

The elastic spring 500 is formed in plurality to correspond to the number of the fastening protrusions 203 , and returns the button unit 200 to its original position.

The elevator button having a waterproof function according to the present invention configured as described above is used as follows.

First, the button unit 200 is positioned at the front end of the outer housing 100 so that the button unit 200 enters the front end of the outer housing 100 .

Then, the rear surface of the button unit 200 is caught by the stopper 101 of the outer housing 100, while preventing it from entering the outer housing 100 by a predetermined depth or more, of the button unit 200 The button part 200 is movably coupled to the front end of the outer housing 100 in such a way that the locking member 204 is caught on the locking jaw 102 of the outer housing 100 .

Here, the button unit 200 is to flow forward and backward in proportion to the distance between the stopper 101 and the locking jaw 102 .

Then, the substrate 300 is provided, but the substrate 300 is introduced into the rear end of the waterproof cover 400 so that the inner peripheral surface of the waterproof cover 400 is in close contact with the outer peripheral surface of the substrate 300 .

Then, the front surface of the substrate 300 is hermetically covered by the waterproof cover 400 , and at this time, the buffer projection 402 formed on the waterproof cover 400 is on the tact switch 301 of the substrate 300 . to remain in contact.

In particular, an O-ring 404 is formed on the inner circumferential surface of the rear end of the waterproof cover 400 , and the O-ring 404 is in a state where the O-ring 404 is forcibly fitted in the gap between the waterproof cover 400 and the substrate 300 , The gap between the waterproof cover 400 and the substrate 300 is sealed.

In addition, the packing ring 403 formed on the buffer projection 402 of the waterproof cover 400 is in close contact with the periphery of the tact switch 301 of the substrate 300 to seal the tact switch 301 . .

That is, the front surface of the substrate 300 is firstly sealed covered by the waterproof cover 400, and the tact switch 301 of the substrate 300 is secondarily sealed and covered by the packing ring 403, The substrate 300 is protected.

Next, the waterproof cover 400 to which the substrate 300 is coupled is positioned at the rear end of the outer housing 100 , and in that state, the seating groove 401 of the waterproof cover 400 is the button part 200 . Aligned so as to be positioned on the same line with the fastening protrusion 203 of the, by positioning the elastic spring 500 between the seating groove 401 and the fastening protrusion 203, one end of the elastic spring 500 is fastened The waterproof cover 400 is coupled to the rear end of the outer housing 100 so that the other end is seated in the seating groove 401 while being fitted to the protrusion 203 .

Then, while maintaining the state in which the elastic spring 500 is fixed between the seating groove 401 and the fastening protrusion 203, press and press the button part 200 in the front end direction of the outer housing 100. , the button part 200 is located at the front end of the outer housing 100 .

In addition, the touch protrusion 202 of the button unit 200 is in contact with the buffer protrusion 402 of the waterproof cover 400, and is positioned on the same line as the buffer protrusion 402 .

At this time, the output terminal 303 formed on the substrate 300 maintains a state exposed to the outside through the through hole 103 of the outer housing 100 to connect the wiring to the output terminal 303 . .

Then, by fastening a fastening bolt (not shown) through the rear surface of the substrate 300 , the substrate 300 and the waterproof cover 400 are fixed in the outer housing 100 , and then, the button part When external pressure is applied to 200, the button part 200 is pressed by the external pressure and presses the elastic spring 500, and accordingly, the elastic spring 500 is seated in the seating groove 401. is compressed by the button unit 200 in the

In addition, while the touch protrusion 202 of the button unit 200 is pressed in the direction of the buffer protrusion 402 of the waterproof cover 400, the buffer protrusion 402 is pressed and pressed, and at this time, the buffer protrusion 402 ) is pressed while the tact switch 301 of the substrate 300 is pressed.

Then, the operation signal of the tact switch 301 is output to the outside through the output terminal 303 and at the same time the LED element 302 receives the signal from the tact switch 301 and irradiates light, so that the LED element ( The light irradiated from the 302) passes through the mark 201 of the waterproof cover 400 and the button unit 200, and is irradiated to the outside.

At this time, by checking the light transmitted through the mark 201 of the button unit 200 from the outside, it is determined whether the tact switch 301 is operated.

Here, the waterproof cover 400 is formed in a color (eg, red, yellow, blue) whose color is determined, and the light of the LED element 302 that transmits in the direction of the mark 201 is the waterproof cover ( 400), it can be modified to correspond to the color.

Here, when the external pressure applied to the button part 200 is released, the elastic spring 500 is restored to its original state and the button part 200 is pressed in the front end direction of the external housing 100, and accordingly, the The button unit 200 is returned to its original position.

On the other hand, when water is sprayed on the outer housing 100 by an external factor (eg, a fire hose or a sprinkler), water penetrates between the outer housing 100 and the button unit 200, and at this time, the Water that has penetrated into the outer housing 100 is blocked by the waterproof cover 400 sealing the front surface of the substrate 300 , thereby preventing water from penetrating into the substrate 300 .

That is, water is first blocked by the waterproof cover 400, and the water reaching the gap between the waterproof cover 400 and the substrate 300 is secondarily blocked by the O-ring 404, and Water is blocked thirdly by the packing ring 403 that seals and covers the periphery of the tact switch 301 , thereby preventing water from penetrating into the substrate 300 or the tact switch 301 .

Then, penetration of water into the substrate 300 is prevented by the waterproof cover 400 , and at the same time as electrical damage to the substrate 300 , the external force applied to the tact switch 301 is reduced by the buffer projection 402 . ), it is possible to prevent damage to the tact switch 301 .

As described above, the front surface of the substrate 300 is sealed and covered with the waterproof cover 400, but the buffer projection 402 is in contact with the tact switch 301 to prevent damage to the tact switch 301 while waterproofing the substrate 300. The structure is installed so that the waterproof cover 400 surrounds the outer surface of the substrate 300 , the front surface of the substrate 300 is hermetically covered by the waterproof cover 400 , and the substrate 300 is waterproofed with the waterproof cover 400 . Thus, there is no risk of damage to the substrate 300 due to electrical damage, and as the buffer protrusion 402 is pressed by the touch protrusion 202, the tact switch 301 is pressed and operated, so that the external pressure applied to the tact switch 301 is buffered do.

The elevator button having a waterproof function according to the present invention described above is not limited to the above embodiment, and those of ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the following claims It has the technical spirit to the extent that anyone can change it in various ways.

100: outer housing 101: stopper
102: locking jaw 103: through hole
200: button 201: mark
202: touch projection 203: fastening projection
204: catch 300: substrate
301: tact switch 302: LED element
303: output terminal 400: waterproof cover
401: seating groove 402: buffer projection
403: packing ring 404: O-ring
500: elastic spring

Claims (6)

The front and rear are open hollow outer housing 100 and;
The outer housing 100 is movably inserted and caught in front and back, and forms a mark 201 formed of any one of letters, numbers or figures of a translucent material on the front, and a touch protrusion 202 is formed in the center of the rear and a button unit 200 having a fastening protrusion 203 formed on the edge of the touch protrusion 202;
It is fastened to the rear end of the outer housing 100, and a tact switch 301 is formed on the front side, and a plurality of tact switches 301 are formed on the edge of the button unit 200 to emit light in the direction of the mark 201. a substrate 300 on which an LED element 302 to be irradiated is formed;
It is located between the substrate 300 and the button unit 200, is closely fixed to the outer surface of the substrate 300 so as to cover and seal the entire surface of the substrate 300, and a plurality of seating grooves 401 are formed on the front edge. Formed, while covering the tact switch 301 with a silicon material in the center portion is pressed by the touch protrusion 202 of the button unit 200 to form a buffer protrusion 402 for pressing and pressing the tact switch 301 waterproof cover 400;
One end is fitted and fixed to the fastening protrusion 203 of the button unit 200, and the other end is fastened to the seating groove 401 of the waterproof cover 400, and the button unit 200 pressed by external pressure is in its original state. an elastic spring 500 to return to;
is composed of
The waterproof cover 400,
The silicon material is formed to protrude in a ring shape from the bottom edge of the buffer protrusion 402, and the bottom is in close contact with the tact switch 301 of the substrate 300 to prevent moisture from penetrating into the tact switch 301. Elevator button having a waterproof function, characterized in that further forming a packing ring (403) to block. The method of claim 1,
The outer housing 100,
A plurality of protruding stoppers 101 are formed to be spaced apart from each other along the inner wall surface, and a stopping protrusion 102 is formed between the stoppers 101,
The button unit 200,
It is inserted into the front end of the outer housing 100, the bottom surface is caught by the stopper 101, the depth of entering into the outer housing 100 is limited, the bottom edge is caught by the engaging projection 102, the outer housing (100) Elevator button having a waterproof function, characterized in that further forming a stopper 204 to block the separation by the front end. The method of claim 1,
The buffer projection 402 of the waterproof cover 400 is,
Elevator button having a waterproof function, which is formed to seal the central edge of the waterproof cover 400, and blocks moisture from penetrating in the direction of the substrate 300 through the central edge of the waterproof cover 400 . delete The method of claim 1,
The waterproof cover 400,
Elevator having a waterproof function, characterized in that an O-ring 404 is further formed on the inner wall edge of the substrate 300 to be fixed in close contact with the outer surface of the substrate 300 to seal the gap between the waterproof cover 400 and the substrate 300 button. The method of claim 1,
The waterproof cover 400,
Elevator button, characterized in that it is formed to have a predetermined color of a transparent material, characterized in that for changing the color of the light of the LED element (302) that passes through the waterproof cover (400).

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