JP3972570B2 - Transmitter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable transmitter that remotely controls locking and unlocking of an automobile door.
[0002]
[Prior art]
In recent years, as automobiles have become more sophisticated and diversified, in addition to those that directly lock and unlock doors using keys, there are an increasing number of remote controls that use infrared or radio wave transmitters. .
[0003]
Such a conventional transmitter will be described with reference to FIG.
[0004]
FIG. 5 is an exploded perspective view of a conventional transmitter. In FIG. 5, reference numeral 1 denotes a box-shaped upper case having an opening on the lower surface, 2 denotes an elastic body made of an elastic material such as rubber, and is provided on the upper surface of the upper case 1 An operation portion 2A provided on the upper surface of the elastic body 2 protrudes from the through hole 1A so as to be movable up and down.
[0005]
Reference numeral 3 denotes a wiring board disposed below the elastic body 2. On the upper surface of the wiring board 3, a push button switch 3A is mounted as a switch contact that is opened and closed by the lower surface of the operation unit 2A. A transmission circuit 3B is formed by mounting a semiconductor or the like.
[0006]
4 is a button type battery, and 5 is a lower case that covers the lower surface opening of the upper case 1. A circular battery holding portion 5A is provided on the upper surface of the lower case 5, and the battery 4 is stored therein. In addition, a positive electrode 6A is attached to the outer periphery of the battery 4.
[0007]
The positive electrode 6A is connected to the lower surface of the wiring board 3, and the negative electrode 6B on the lower surface of the wiring board 3 is connected to the upper surface of the battery 4 to constitute a transmitter.
[0008]
In the above configuration, when the operation portion 2A of the elastic body 2 protruding from the upper surface of the upper case 1 is pressed, the push button switch 3A is opened and closed by the lower surface of the operation portion 2A, and the transmission circuit 3B is activated to transmit infrared rays or radio waves to the automobile. By being transmitted, the door is locked and unlocked remotely.
[0009]
[Problems to be solved by the invention]
However, in the above-described conventional transmitter, when the transmitter is disassembled when the battery 4 is replaced, etc., the individual components are separated, so that each component mounted on the upper and lower surfaces of the wiring board 3, the positive electrode 6A, etc. There has been a problem that hands and tools are touched, or each part is in contact with each other, and these parts are likely to be deformed or damaged.
[0010]
The present invention solves such a conventional problem, and an object of the present invention is to provide a transmitter that can be easily disassembled and assembled without causing deformation or breakage of components.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration.
[0012]
The invention according to claim 1 of the present invention is an elastic material made of an elastic material having a box-shaped upper case having a lower surface opening having a through-hole on the upper surface and an operation portion projecting from the through-hole of the upper case so as to move up and down. A wiring board provided with a switch contact and a transmission circuit disposed below the elastic body and opened and closed by the operation unit, and a lower case covering the lower surface opening of the upper case. A box-shaped inner case is disposed between the cases with an opening on the upper surface, and the wiring board is stored and held in the inner case, and a protruding portion formed at an intermediate portion of the side wall of the elastic body is formed on the inner case side wall. The transmitter is engaged with the groove provided, and the upper surface opening of the inner case is covered with the elastic body, so that the inner case, the wiring board, and the elastic body are combined into one unit . , Switch contacts and transmission circuits, Since the wiring board with the poles etc. is housed in the inner case, and the elastic body is locked to the inner case and these are unitized, it is difficult for the component parts to be deformed or damaged during disassembly. It has the effect that a transmitter that can be easily assembled can be obtained.
[0013]
According to a second aspect of the present invention, in the first aspect of the present invention, an annular protrusion is formed on either the upper case lower surface or the upper surface of the elastic body, and the protrusion is formed on the upper surface of the elastic body or the upper case lower surface. Since the wiring board on which the switch contact, the transmission circuit, the electrode, and the like are mounted can be hermetically sealed by the protrusion, the transmitter having an excellent dustproof and waterproof property can be obtained.
[0014]
The invention according to claim 3 is the invention according to claim 1, wherein a vehicle key is integrally formed with the upper case or the lower case, and the vehicle key for directly locking and unlocking the door is provided. Since it is integrated with a transmitter that performs remote operation, it has an effect that a user-friendly transmitter can be obtained.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0016]
In addition, the same code | symbol is attached | subjected to the part of the structure same as the structure demonstrated in the term of the prior art, and detailed description is abbreviate | omitted.
[0017]
(Embodiment)
1 is a cross-sectional view of a transmitter according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, in which 11 is an upper case made of a box-shaped insulating resin with a bottom opening, 12 is a rubber or An operation part 12A provided on the upper surface of the elastic body 12 protrudes from a through-hole 11A provided on the upper surface of the upper case 11 so as to be movable up and down by an elastic body made of an elastic material such as elastomer.
[0018]
A wiring board 13 is disposed below the elastic body 12. On the upper surface of the wiring board 13, a push button switch 3A is mounted as a switch contact that is opened and closed by the lower surface of the operation unit 12A. A transmission circuit 3B is formed by mounting a semiconductor or the like, and these are connected by wiring patterns (not shown) formed on the upper and lower surfaces of the wiring board 13.
[0019]
Further, a positive electrode 14A and a negative electrode 14B made of a conductive metal thin plate are connected to the lower surface of the wiring board 13 by soldering or the like, and the positive electrode 14A is in contact with the outer periphery of the battery 4 and the negative electrode 14B is in contact with the upper surface of the battery 4. The button-type battery 4 is held.
[0020]
Reference numeral 15 denotes an inner case made of a box-shaped insulating resin having an opening on the upper surface, provided with an insertion / removal hole 15A for inserting / removing the battery 4 on the upper surface, and an elastic claw 15B protruding upward, and this elastic claw 15B Thus, the wiring board 13 is housed and held in the inner case 15.
[0021]
In addition, a side wall 12B extending downward is formed on the outer periphery of the elastic body 12, and a protruding portion 12C extending inward from the lower end of the side wall 12B is locked to the bottom surface of the inner case 15, so that the inner case 15 The wiring board 13 and the elastic body 12 constitute a single unit.
[0022]
Reference numeral 16 denotes a lower case made of a box-shaped insulating resin having an upper surface opening. The lower case 16 covers the lower surface opening of the upper case 11, and the convex portion 12D formed in the middle of the outer periphery of the side wall 12B of the elastic body 12. Is inserted into a groove 16A formed on the mating surface of the upper case 11 and the lower case 16, and is sandwiched between the upper case 11 and the lower case 16 to intrude dust and water from the through-hole 11A and the mating surfaces of the upper and lower cases. Is preventing.
[0023]
Further, the lower surface of the upper case 11 and the upper surface of the lower case 16 are respectively formed with annular protrusions 11B and 16B, and the protrusions 11B and 16B are pressed against the upper and lower surfaces of the elastic body 12 to constitute a transmitter. Yes.
[0024]
In the above configuration, when the operation portion 12A of the elastic body 12 protruding from the upper surface of the upper case 11 is pressed, the push button switch 3A is opened and closed by the lower surface of the operation portion 12A, and the transmission circuit 3B is activated to transmit infrared rays, radio waves, and the like. It is the same as in the case of the prior art that the door is locked and unlocked remotely by being transmitted to the automobile.
[0025]
In addition, when replacing the battery 4 or the like, it is possible to remove the screw 17 and the like to disassemble the transmitter as in the case of the prior art, but the push button switch 3A, the transmission circuit 3B, the electrodes 14A and 14B, etc. Since the mounted wiring board 13 is housed in the inner case 15 and covered with the elastic body 12 to form a unit, when the transmitter is disassembled and the battery 4 is inserted and removed from the insertion / removal hole 15A of the inner case 15, Each component is configured not to be deformed or damaged by hand, tool, or contact between the components.
[0026]
As described above, according to the present embodiment, the box-shaped inner case 15 is disposed between the wiring substrate 13 and the lower case 16, and the wiring substrate 13 is accommodated in the inner case 15. Since the transmitter is configured by locking the protruding portion 12C of the side wall 12B of the elastic body 12 to the bottom surface and using them as one unit, the components are not easily deformed or damaged during disassembly, and disassembly and assembly are easy. A simple transmitter can be obtained.
[0027]
Then, in addition to the convex portion 12D of the elastic body 12 sandwiched between the mating surfaces of the upper case 11 and the lower case 16, projecting portions 11B and 16B are formed in an annular shape on the lower surface of the upper case 11 and the upper surface of the lower case 16, and this protrusion By pressing the portions 11B and 16B against the upper and lower surfaces of the elastic body 12, the wiring board 13 on which the push button switch 3A, the transmission circuit 3B, the battery 4 and the like are mounted can be sealed, so that the transmitter is excellent in dust resistance and waterproofness. Can be.
[0028]
In the above description, the protruding portion 12C at the lower end of the side wall 12B of the elastic body 12 is locked to the bottom surface of the inner case 15, and the inner case 15, the wiring board 13, and the elastic body 12 are configured as one unit. As described above, as shown in the cross-sectional view of the unit of FIG. 3, the protruding portion 12E is formed at the intermediate portion of the side wall 12B of the elastic body 12, and this is engaged with the groove portion 15C of the side wall of the inner case 15; Alternatively, the present invention can be carried out by providing the elastic body 12 and the protrusions and grooves of the inner case 15 in reverse.
[0029]
In addition, the protrusions 11B and 16B formed on the lower surface of the upper case 11 and the upper surface of the lower case 16 are pressed against the upper and lower surfaces of the elastic body 12 to improve dustproofness and waterproofness. A similar effect can be obtained by providing annular protrusions on the upper and lower surfaces of the body 12 and pressing them on the lower surface of the upper case 11 and the upper surface of the lower case 16.
[0030]
Further, as shown in the perspective view of FIG. 4, the vehicle key 18 that directly locks and unlocks the door can be remotely controlled by integrally molding the vehicle key 18 in the upper case 11 or the lower case 16. Since the transmitter is integrated with the transmitter, a user-friendly transmitter can be obtained.
[0031]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain an advantageous effect that it is possible to obtain a transmitter in which component parts are hardly deformed or damaged during disassembly and can be easily disassembled and assembled.
[Brief description of the drawings]
FIG. 1 is a sectional view of a transmitter according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the transmitter. FIG. 3 is a sectional view of the unit. FIG. 5 is an exploded perspective view of a conventional transmitter.
3A Push button switch 3B Transmitter circuit 4 Battery 11 Upper case 11A Through hole 11B, 16B Protrusion part 12 Elastic body 12A Operation part 12B Side wall 12C, 12E Protrusion part 12D Protrusion part 13 Wiring board 14A Positive electrode 14B Negative electrode 15 Inner case 15A Insertion / extraction hole 15B Elastic Claw 15C Groove 16 Lower Case 16A Groove 17 Screw 18 Vehicle Key

Claims (3)

A box-shaped upper case with a bottom opening having a through-hole on the upper surface, an elastic body made of an elastic material having an operation part that protrudes up and down from the through-hole of the upper case, and disposed below the elastic body, A wiring board having a switch contact and a transmission circuit that are opened and closed by the operation unit, and a lower case that covers a lower surface opening of the upper case, and a box-shaped inner case with an upper surface opening between the wiring board and the lower case and disposed, the wiring board is housed and held within the inner case, the projecting portion formed at an intermediate portion of the side wall of the elastic body is locked in the groove provided in the inner case side wall, in the A transmitter in which an upper surface opening of a case is covered with the elastic body, and the inner case, the wiring board, and the elastic body are combined into one unit . Either or upper case lower surface of the upper surface of the elastic body, annularly formed protrusions, the transmitter of claim 1, wherein the press-contact the protrusion on the lower surface the upper surface or the upper case of the elastic body.   The transmitter according to claim 1, wherein a vehicle key is integrally insert-molded in the upper case or the lower case.

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