JP3375036B2 - Terminal structure of small electronic equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal structure of a small electronic device for connecting a battery and a wiring board in a small electronic device such as a portable small electronic device. is there. 2. Description of the Related Art A coin-type battery is used as a power source in a small electronic device such as a portable paging receiver, and the battery can be easily attached and detached. Are connected via terminals. Referring to FIG. 4, a terminal structure of a conventional small electronic device will be described. In FIG. 1, reference numeral 1 denotes a terminal, and 2 denotes a wiring board. The wiring board 2 is formed with a notch 4 for loading a coin-shaped battery 3. When the battery 3 is loaded in the notch 4, the battery 3 and the wiring board 2 are separated. A required circuit (not shown) is connected via the terminal 1. [0005] The terminal 1 is made of a conductive strip-shaped plate material such as a metal plate. The terminal 1 has a fixing portion 5 to be soldered to the wiring board 2, and is bent at a right angle from the fixing portion 5 to form the chip. It has a strip-shaped battery contact portion 6 extending toward the cut portion 4 and having a slightly bent front end portion. The fixing part 5
When the battery 3 is loaded into the notch 4 in a state where the battery 3 is soldered to the wiring board 2, the battery contact portion 6 comes into contact with the side surface of the battery 3 by elastic force. However, in the terminal structure of the above-mentioned conventional small electronic device, since the terminals 1 are soldered to the wiring board 2, the number of working steps is increased and the work is complicated. There were inconveniences such as high costs. The present invention has been made in view of the above circumstances, and aims to reduce the number of working steps and cost. According to the present invention, at least two opposing holding pieces are formed in a housing of a small electronic device such as a portable paging receiver, and a contact between the holding pieces and a wiring board is provided. The terminal structure of a small electronic device in which a terminal having a battery contact portion that contacts a battery is press-fitted and fixed, wherein the terminal is fixed to a housing side by the terminal holding piece, and the terminal and the wiring board, The terminal and the battery come into contact with each other by elastic force. Embodiments of the present invention will be described below with reference to the drawings. The housing of the small electronic device shown in FIGS. 1 to 3 comprises a box-shaped front case 10 and a box-shaped rear case 11, in which a terminal holding portion 12 is formed. The terminal 13 is attached to 12. The terminal 13 is made of a conductive material such as a metal plate or a strip. The terminal 13 is bent in a U-shape substantially at the center, and one end of one of the bent pieces is near the tip. The other piece is bent slightly in a V-shape to form a battery contact portion 14, and the other portion is bent at a substantially right angle outward toward the outside, and the right-angle bent portion forms a first fixing portion 15, and further has a tip. The portion is bent in the shape of an arrowhead to form a second fixing portion 16. From the U-shaped bent portion of the terminal 13 on the side of the first fixing portion 15, the strip-shaped substrate contact portion 17 is connected to the rear case 11.
When attached to the rear case 11, substantially parallel to the bottom surface of the rear case 11,
Further, the first fixing portion 15 and the second fixing portion 16 extend in the same direction, and the tip of the substrate contact portion 17 is slightly bent in a V-shape. The terminal holding portion 12 is connected to the rear case 11
Strip-shaped holding pieces 18 and 19 projecting from the bottom of
The one holding piece 18 has a substantially center bent at a right angle, one end of which is joined to the inner surface of the peripheral wall of the rear case 11, and the other end of which can be engaged with the second fixing portion 16. It is tapered. The other holding piece 19 is the holding piece 1
A terminal holding groove 20 is formed at a position away from the terminal 8 by the thickness of the terminal 13, and the central portion is bent at a right angle similarly to the holding piece 18, and the terminal holding groove 20 is provided in the terminal holding groove 20. 13 is press-fittable. The first fixing portion 15 of the terminal 13 is press-fitted between the holding pieces 18 and 19, and the second fixing portion 16 is engaged with the tip of the holding piece 18 to fix the terminal 13. When the wiring board 21 is assembled into the rear case 11, the board contact portion 17 is pressed by the wiring board 21, and a power supply pattern (not shown) of the wiring board 21 and the board contact portion 17 are connected. Contact. Coin-shaped battery 2
When the battery 2 is loaded, the battery contact portion 14 comes into contact with the side surface of the battery 22 by elastic force. The battery 22 and the wiring board 21
The terminal 13 is connected to the side via the terminal 13, and the terminal 13 is incorporated in the housing without soldering. In this embodiment, the terminal holding portion 12
Although provided on the rear case 11 side, it goes without saying that the terminal 13 may be provided on the front case 10 side, and the shape of the terminal 13 is not limited to the above embodiment. As described above, according to the present invention, the terminals are press-fitted and fixed between the holding pieces formed on the housing, and the board contact portions of the terminals are the wiring board and the battery contact portions are the same. Since the batteries are in contact with the batteries by elastic force, there is no need for soldering, and a complicated soldering operation can be omitted, and an excellent effect such as a reduction in operation steps and a reduction in cost can be exhibited.

[Brief description of the drawings] FIG. 1 is a rear view showing an embodiment of the present invention. FIG. 2 is an exploded front view showing the first embodiment. FIG. 3 is a front view showing the first embodiment. FIG. 4 is a front view showing a conventional example. [Explanation of symbols] 10 Front case 11 Rear case 12 Terminal holding part 13 terminals 14 Battery contact 15 First fixed part 16 Second fixed part 17 Substrate contact 18 Holding piece 19 Holding piece 20 Holding groove 21 Wiring board 22 batteries

Claims (1)

(57) [Claim 1] At least two opposing holding pieces are formed in a housing of a small electronic device such as a portable paging receiver, and a terminal is pressed and fixed between the holding pieces. In the same manner, the terminal is press-fitted between the holding pieces, a battery contact portion extending from the fixing portion, and the battery contact portion is independent of the battery contact portion parallel to the bottom surface of the housing from the fixed portion. And a cantilever strip-shaped substrate contact portion extending therefrom, wherein the battery contact portion makes contact with the side surface of the battery by elastic force, and the substrate contact portion is perpendicular to the pattern of the wiring board.
A terminal structure for a small electronic device, wherein the terminal structure comes into direct contact with an elastic force.