JP2614445B2 - Cart type wireless transmitter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a card-type wireless transmitter formed small and thin.

(Background technology)

A portable wireless transmitter used as a wireless chime or an emergency transmitter is desired to be small and thin, but the conventional one has a structural limitation.

7 and 8 show the external view of a conventional wireless transmitter of this type and its cross-sectional structure. The wireless transmitter is composed of a body 100, a base 101, and a cover 102. It has a structure in which a transmission circuit 103 formed by mounting electronic components on a printed circuit board 103 is covered with a body 100 and a base 101, and has a dip switch for setting a house code. A thickness is required, which hinders a reduction in thickness.

[Object of the invention]

The present invention provides a thinner wireless transmitter.

[Disclosure of the Invention]

The card-type wireless transmitter of the present invention proposed to achieve the above object has a box-shaped body having a U-shaped cross section open at one end, a printed circuit board on which electronic components are mounted, and a part of a main body case. In the first aspect of the present invention, the printed circuit board is a positive electrode of a button battery in that the main body case is configured by being combined so that the mounting surface is located inside. It has a conductive part to be connected and a conductive part to be connected to the negative pole of the button battery, and an opening of the main body case accommodates the button battery, and a conductive part of the printed circuit board on the upper surface of the battery. A lid cover attached with a conductive plate that forms a spring piece that comes into contact is configured to be inserted,
When the lid cover is inserted, power is supplied from the button battery to the printed circuit board.

Further, such a card-type wireless transmitter of the present invention is embodied in various modifications, and in the second invention proposed in claim 2, the printed circuit board is a positive electrode of a button battery. A conductive piece to be connected and a group of isolated conductive parts connected to the negative pole of the button battery, and a conductive part connected to the ground pattern of the printed circuit board at one end and the other end connected to the negative pole of the button battery. The button case is accommodated in the opening of the main body case, the upper surface of the battery is always in contact with the conductive portion of the printed circuit board, and is selectively in contact with the plurality of conductive portion groups. A lid cover provided with a channel setting plate having a spring piece is configured to be inserted.When the lid cover is inserted, power is supplied to the printed circuit board from the button battery, and Channel of printed circuit boards is adapted to be set. In claim 3, the channel setting plate has the same number of spring pieces as the conductive part group on the printed circuit board side, and the contact between the negative electrode of the button battery and the conductive part group is the same. This is selectively performed by an insulating plate having a through hole formed therein.

In addition, the third method proposed in claim 4
In the invention, the printed board has a plurality of conductive spring pieces for setting a channel code connected to a ground pattern, and a plurality of isolated conductive portions that are always in contact with these conductive spring pieces, and On the lid of the case,
A channel setting claw for selectively preventing contact between the conductive spring piece and the isolated conductive portion is provided, and a lid cover for accommodating a button battery is inserted therein.
When the cover is inserted into the opening, power is supplied to the printed circuit board from the button battery, and a channel code is set at the same time. Further, in claim 5, the printed circuit board includes a plurality of conductive spring pieces for channel setting connected to the ground pattern;
It has a plurality of isolated conductive portions that are in constant contact with these conductive spring pieces, and a transparent portion that selectively allows contact between the conductive spring pieces and the isolated conductive pieces is provided in the opening of the main body case. The cover has a structure in which a channel setting insulating plate having a hole is attached, and a lid cover for accommodating a button battery is inserted.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 1a show a first invention.

FIG. 1 shows a first embodiment, in which a printed circuit board 2 on which electronic components are surface-mounted is opened at one end face provided with operation buttons on the bottom side so that the mounting surface is located inside. A body case A is formed by combining a body 1 having a U-shaped cross section, and a lid in which a button battery 5 is accommodated and fixed in a space 1b formed between the printed circuit board 2 and the body 1 of the body case A. A cover 3 is inserted, and a conductive plate formed of a conductive material on the upper surface of the button battery 5 (negative pole) and in contact with a conductive portion 2b provided corresponding to the printed circuit board 2 side. 4 are provided. This conductive plate 4
Has a spring piece 4a that extends upward and bends, as shown in the figure, and has a convex portion 4c that contacts the upper surface of the battery 5 on the lower surface. A conductive piece 2a is provided at an appropriate position on the printed circuit board 2 to be in contact with the side surface (positive electrode) of the button battery 5, and a nameplate 6 is attached to the non-mounting surface side of the printed circuit board 2. This is indicated on the nameplate 6.

The structure of the lid cover 3 will be described in more detail. A locking claw that engages with locking projections 1a, 1a provided inside the main body case A is provided on both sides of the lid 3a that closes the opening 1b of the main body case A. 3b, 3b
The battery 5 is fitted and fixed inside the locking claws 3b, 3b on a base plate (not shown) provided between the locking claws 3b, 3b. Also, a projection 3c is provided at the center of the locking claws 3b, 3b, a hole 4b provided corresponding to the above-described conductive plate 4 is fitted to the projection 3c, and the conductive plate 4 is attached by heat welding or a screw. ing.

According to such a structure, when the lid cover 3 accommodating and fixing the battery 5 is inserted into the opening 1b of the main case A,
The hooks 3d, 3d of the locking claws 3b, 3b engage with the projections 1a, 1a in the case, so that the side surface of the battery 5, that is, the positive pole is printed as shown in FIG. Since the upper surface of the battery 5, that is, the negative electrode contacts the conductive portion 2 b on the negative electrode side of the printed circuit board 2 via the spring piece 4 a of the conductive plate 4, the printed circuit board 2 contacts the conductive member 2 a extending from the substrate 2. 2 is supplied with power from a battery 5.

Further, with such a structure, the printed circuit board 2 forms a part of the main body case A and forms an outer shell of the main body case A, so that there can be a structure in which no electronic components are mounted other than the printed circuit board 2. On the bottom surface provided as an outer shell on the opposite side of the printed circuit board 2 of the main body case A, a sufficient space for an operation switch is provided, so that the thickness can be extremely thin as compared with the conventional one.

FIGS. 2 to 3a show an embodiment of the second invention, in which a printed circuit board 2 surface-mounted as in the above-described embodiment and operation buttons (not shown) are provided on the bottom side. A main body case A is formed by combining a box-shaped body 1 having a U-shaped cross section with an open end, and a cover 1 on which a button battery 5 is placed is provided in a space 1b between the printed board 2 and the body 1. The channel setting plate 7 made of a conductive material is provided on the upper surface (minus pole) of the button battery 5.
Is placed, so that the house code of the transmitter can be set. A nameplate 6 is attached to the non-mounting surface side of the printed circuit board 2, and necessary labels are written on the nameplate.

The channel setting plate 7 in this embodiment includes a plurality of spring pieces 7a for setting channels and a spring piece 7a 'for connecting the negative pole of the battery 5 to the ground pattern 2c' of the printed circuit board 2 for connection. A plurality of isolated conductive portion groups 2c... 2c ′ are formed on the printed circuit board 2 corresponding to such spring pieces 7a. The holes 7b, 7b of the channel setting plate 7 are fitted into projections 3c ', 3c' provided at the bases of the locking claws 3b, 3b of the lid cover 3, and are attached with an adhesive or the like as necessary. In such a structure, when the button battery 5 is housed and fixed in the lid cover 3 and then inserted into the opening 1b of the main body case A, as shown in FIG. Are brought into contact with the conductive pieces 2c of the printed circuit board 2 via the spring pieces 7a of the plate 7, and the spring pieces 7a 'are connected to the ground pattern 2c' of the printed board 2 at the same time. If the number of the spring pieces 7a contacting with... Is selected, for example, by dividing the number, the DIP switch becomes unnecessary and the channel code can be set arbitrarily as understood from the equivalent circuit diagram of FIG. 2b. .

FIG. 3 is an improvement of the embodiment shown in FIG.
The channel code is set without breaking the spring pieces 7a.

As shown in the figure, in this embodiment, the contact of the spring pieces a of the channel setting plate 7 with the conductive pieces 2c is formed by forming through holes 8a placed on the channel setting plate 7. The channel setting can be easily changed only by replacing the insulating plate 8 because the selection is made by the used insulating plate 8. FIG. 3a shows a longitudinal sectional structural view in this embodiment,
A spring piece 7a provided corresponding to the position of the through hole 8a of the insulating plate 8 (a)
Only the contact with the conductive piece group 2c is allowed, and the spring piece 7a (b) provided corresponding to the position without the through hole prevents the contact with the conductive piece group 2c, thereby setting the channel code. You can see what is done.

 4 to 6a show a third invention.

In the example shown in FIG. 4, the lid cover 3 inserted into the opening 1b of the main case A is provided with channel setting claws 3e.

In the case of this embodiment, the printed board 2 is provided with a plurality of spring pieces 2e each having one end connected to a ground pattern, and the spring pieces 2e are conductive portions connected to a transmission circuit separately provided on the printed board 2. It comes in constant contact with 2d….

In such a structure, when the lid cover 3 is inserted into the opening 1b of the main body case A, as shown in FIG. 4a, the conductive portion 2d and the spring piece are set by the channel setting claws 3e of the lid cover 3.
Since the contact of 2e is prevented, an arbitrary channel code can be set by folding the nail 3e according to the channel code to be set.

FIG. 4b shows an equivalent circuit of this embodiment.

FIG. 5 shows a further embodiment in which the embodiment of FIG. 4 is improved.

The feature of this embodiment is that the lid cover 3 is not provided with claws, but is provided with a projecting piece 3f having an opening, and a channel setting insulating plate 9 having a through hole 9a is mounted on the projecting piece 3f. Has become. FIG. 5a illustrates the principle of channel setting in this embodiment. The spring piece 2e (a) provided at a position corresponding to the through hole 9a of the insulating plate 9 is allowed to contact, and a portion without a through hole is provided. The spring piece 2e (b) provided at the corresponding position is configured such that the contact is prevented by the insulating plate 9 so that the channel code can be set. FIGS. 6 and 6a show a further improvement of this embodiment, in which only the portion corresponding to the thickness of the channel setting insulating plate 9 is provided with the concave step 3g on the protruding piece 3f, thereby further reducing the thickness. It can be planned.

〔The invention's effect〕

According to the wireless transmitter of the present invention, a main body case is assembled by combining a printed circuit board on which electronic components are mounted with a box-shaped body having a U-shaped cross section with one end surface opened so that the mounting surface is located inside. With this configuration, the printed circuit board forms the outer shell of the main body case.Furthermore, since it is possible to adopt a structure in which circuit components are not mounted on parts other than the printed circuit board, a wireless transmitter that can be made even thinner is provided. Is achieved.

[Brief description of the drawings]

1 to 1a show a first invention. FIG. 1 is an external structural view of one embodiment, FIG. 1a is a longitudinal sectional structural view thereof, and FIGS. 2 to 3a show a second present invention. FIG. 2 is an external view of one embodiment, FIG.
FIG. 2b is an equivalent circuit diagram, FIG. 3 is an external configuration diagram of the second embodiment, and FIG. 3a is a longitudinal sectional structure diagram. 4 to 6a show a third invention. FIG. 4 is an external configuration diagram of one embodiment, FIG. 4a is a vertical cross-sectional structure diagram, FIG. 4b is an equivalent circuit diagram thereof, FIG. 5 is an external configuration diagram of another embodiment, and FIG. FIG. 6 is a view showing the external structure of another embodiment, and FIG. 6a is a longitudinal sectional view showing the same. FIG. 7 is an explanatory view of a structure of a conventional wireless transmitter, and FIG. 8 is an explanatory view of a longitudinal sectional structure thereof. (Explanation of symbols) A: Body case 1: Box-shaped body 2: Printed circuit board 3: Lid cover

Claims (5)

(57) [Claims] 1. A printed circuit board on which electronic components are mounted on a box-shaped body having a U-shaped cross section with an open end, so that the mounting surface is located inside so as to form a part of the main body. Wherein the printed circuit board has a conductive piece connected to the positive pole of the button battery and a conductive portion connected to the negative pole of the button battery, and an opening in the main body case. Has a structure in which a button cover is accommodated, and a lid cover is attached to the upper surface of the battery, which is attached with a conductive plate formed with a spring piece that contacts the conductive portion of the printed circuit board. A card-type wireless transmitter configured to supply power to the printed circuit board from the button battery when inserted. 2. A printed circuit board on which electronic components are mounted is combined with a box-shaped body having a U-shaped cross section having an open end, so that the mounting surface is located inside so as to form a part of the main body. The printed circuit board comprises a conductive piece connected to the positive electrode of the button battery, a plurality of isolated conductive parts connected to the negative electrode of the button battery, and a ground pattern of the printed circuit board. Has a conductive portion connected to one end and the other end connected to the negative pole of the button battery, and accommodates the button battery in the opening of the main body case, and has a conductive portion of the printed circuit board on the upper surface of the battery. And a lid cover provided with a channel setting plate having a spring piece that is in constant contact with the portion and selectively contacts with the plurality of conductive portion groups, and the lid cover is inserted. When the power is supplied to the printed circuit board from the button battery, a channel code of the printed circuit board is set. 3. The card-type wireless transmitter according to claim 2, wherein the channel setting plate has the same number of spring pieces as the conductive portion group on the printed circuit board side, and the button button A card-type wireless transmitter wherein contact between the negative electrode of the battery and the group of conductive parts is selectively performed by an insulating plate having a through hole interposed therebetween. 4. A printed circuit board on which electronic components are mounted on a box-shaped body having a U-shaped cross section having an open end, so that the mounting surface is located inside so as to form a part of the main body. In the wireless transmitter, the printed circuit board has a plurality of conductive spring pieces for channel setting connected to a ground pattern, and a plurality of isolated conductive parts that are always in contact with these conductive spring pieces. And, the lid cover of the main body case is provided with a channel setting claw for selectively blocking the contact between the conductive spring piece and the isolated conductive portion, and the lid cover for accommodating the button battery is provided. When the lid cover is inserted into the opening, power is supplied from the button battery to the printed circuit board, and at the same time, when the lid cover is inserted into the opening. Card type wireless transmitter with channel code set. 5. A printed circuit board on which electronic components are mounted is combined with a box-shaped body having a U-shaped cross section open at one end so that the mounting surface is located inside so as to form a part of the main body. In the wireless transmitter constituting the main body case, the printed circuit board has a plurality of conductive spring pieces for channel setting connected to a ground pattern, and a plurality of isolated conductive parts that are always in contact with these conductive spring pieces. And, in the opening of the main body case, a channel setting insulating plate having a through hole for selectively allowing contact between the conductive spring piece and the isolated conductive portion is attached, and the button battery is accommodated. Card-type wireless transmitter with a lid cover inserted.