JPH0412540Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to electronic devices such as electronic pulse meters, and relates to the wiring and storage structure of electronic components inside the devices.

(b) Conventional technology As shown in Japanese Utility Model Application Publication No. 57-87584, for example, the storage of electronic components inside the case of conventional electronic equipment involves placing a printed circuit board on which an electronic circuit including a flat IC is mounted in the upper case. For those installed inside the lower case, a through hole is drilled in the upper case opposite the IC, and a push button switch that controls the electronic circuit is inserted between the upper case and the IC so that the push button protrudes from the through hole. It is placed. However, this technology uses a steel material such as stainless steel to fix the LCD board to the printed circuit board, and twists and tightens it on the back of the board. Since the printed circuit board and the display board are located on the same plane, the surface area of the printed circuit board itself becomes large, which poses a problem in that miniaturization of the device is hindered.

(c) Problems to be solved by the invention The problems to be solved by the invention are to minimize the area of the printed circuit board on which electronic components are attached, and to ensure a stable and strong connection between the printed circuit board and the electronic components. The purpose of the present invention is to improve the storage structure for electronic components and printed circuit boards in a main body case.

(d) Measures to solve the problem In an electronic device whose main body case is constructed by overlapping the upper and lower halves of the case, and the liquid crystal display member and the printed circuit board are stacked and stored in the upper case with the liquid crystal display member and printed circuit board electrically connected to each other. , the liquid crystal display member is positioned and housed by a rib formed protruding around the display window on the inner surface of the upper case and the printed circuit board mounting boss, and the liquid crystal display member is mounted via the printed circuit board mounting boss. A cushioning material is inserted between the printed circuit board and the liquid crystal display member, and the liquid crystal display member and the printed circuit board are inserted into a space formed between one side edge of the cushioning material and the rib of the upper case. Contains rubber connectors for electrical connections.

(E) Function The liquid crystal display member is positioned and fixed to the ribs on the inner surface of the upper case by the printed circuit board via the cushioning material, and the liquid crystal display member and the printed circuit board are fixed in the space formed by the cushioning material and the ribs. .

(F) Embodiments The electronic device of the present invention will be described in detail below with reference to the drawings, taking a pulse meter as an example.

In Figures 2 (a) and (b), 1 is a synthetic resin top.
The main body case of the pulse meter is constructed by combining lower cases 1a and 1b.A display window 2 is formed on the front surface of the upper case 1a, and a transparent resin 3 is fitted into the display window 2. Button 4 is attached so that it can appear and retract freely. Reference numeral 5 denotes a connecting member that connects the pulse detection portion (not shown) of the pulse meter and the main body case 1, and is composed of a cord 6 and a plug body 7;
It is inserted into a jack (not shown) provided on one side of the main body case 1. Further, on the other side of the main body case 1, a sliding knob 8 for switching the power on/off is provided.

Next, the internal structure of the main body case 1 will be explained with reference to FIGS. 1 and 3.

First, 9 is a microcomputer chip 10, transistors 11, 11, resistors 12, 12, IC 13
Printed circuit boards made by mounting and connecting electronic components such as
14 is a liquid crystal display member electrically connected to the printed circuit board 9 by a rubber connector 15.

Columnar ribs 16a, 16 are provided on the inner surface of the upper case 1a to regulate the mounting position of the liquid crystal display member 14.
b and plate-like ribs 17 are formed, and printed circuit board mounting bosses 18a, are formed on both sides of the plate-like ribs 17.
18b is erected. The liquid crystal display member 14 is positioned and accommodated in a space 19 surrounded by the columnar ribs 16a, 16b, plate-like ribs 17, and mounting bosses 18a, 18b, and the cushioning material 20 with adhesive tape is attached to the Boss 18a, 1
8b, the liquid crystal display member 14 is attached to the upper case 1a as shown in FIG.
Fix it on the inside. At this time, a space 21 is formed between the plate-like rib 17 and the side surface of the buffer material 20, and this space 21 is used to position and hold the rubber connector 15 as shown in FIG. 4B.

Next, the printed circuit board 9 is attached to the mounting boss 18.
The liquid crystal display member 1 is fixed to the upper case 1a with screws 22a and 22b via a and 18b.
4 to the rubber connector 20 to the connecting portion 9a of the printed circuit board 9.

A battery storage recess 23 is provided in one of the lower cases 1b.
are formed, battery connecting conductors 24a and 24b are fixed to the top plate of the battery storage recess 23, button type batteries 25a and 25b are connected and stored in series in this recess 23, and the opening of the recess 23 is can be opened and closed with a battery storage lid 26. The batteries 25a and 25b supply operating current to each electronic component of the printed circuit board 9 via the switch section of the power on/off switch knob 8.

(G) Effects of the invention As explained above, the invention consists of a main body case made by overlapping the upper and lower halves of the case, and storing the liquid crystal display member and the printed circuit board electrically connected to each other in the upper case by stacking them. In the electronic device, the liquid crystal display member is positioned and housed by a rib protrudingly formed around the display window on the inner surface of the upper case and by the printed circuit board mounting boss, and the liquid crystal display member is positioned and housed by the printed circuit board mounting boss. A cushioning material is inserted between the printed circuit board and the liquid crystal display member, which are attached to the printed circuit board, and the liquid crystal display member and the liquid crystal display member are inserted into the space formed between one edge of the cushioning material and the rib of the upper case. By housing the rubber connector that electrically connects the printed circuit board, the electronic components on the printed circuit board and the liquid crystal display section form a double structure, reducing the surface area of the printed circuit board itself. There is an effect that a frame is not required, the structure is simple, and the device can be made smaller and thinner. Furthermore, the liquid crystal display member and the printed circuit board are electrically connected by a rubber connector, which ensures a secure connection and improves the reliability of the device.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a pulse meter which is an embodiment of the electronic device of the present invention, Fig. 2 A is its front view; B is the same side view, Fig. 3 is an exploded perspective view of the upper case, and Fig. 4
Figure A is a completed assembled view of Figure 3; Figure B is a schematic overview of the rubber connector. 1...Main case, 1a...Upper case, 1b...
... lower case, 14 ... liquid crystal display member, 2 ... display window, 16a, 16b, 17 ... rib, 18a, 1
8b... Printed circuit board mounting boss, 9... Printed circuit board, 20... Cushioning material, 21... Space, 15...
...Rubber connector.

Claims (1)

[Scope of utility model registration request] In an electronic device in which the main body case is constructed by overlapping the upper and lower halves of the case, and the liquid crystal display member and the printed circuit board are stacked and stored in the upper case with the liquid crystal display member and the printed circuit board electrically connected to each other, the liquid crystal display member is formed on the inner surface of the upper case. is positioned and housed by a rib protrudingly formed around the display window and the printed circuit board mounting boss, and between the printed circuit board and the liquid crystal display member which are mounted via the printed circuit board mounting boss. A cushioning material is inserted, and a rubber connector for electrically connecting the liquid crystal display member and the printed circuit board is housed in a space formed between one side edge of the cushioning material and the rib of the upper case. and electronic equipment.