JPH0215983B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention provides a battery mounting mechanism that facilitates battery replacement with a simple configuration using an engaging body and first and second contact members having elasticity. The present invention relates to an electronic device having the following features.

[Conventional technology]

Conventionally, electronic devices using thin batteries such as coin-type lithium batteries have been mounted with batteries as shown in FIGS. 1 and 2. FIG. 1 shows the bottom surface (back view) of a conventional electronic device body 1 when the bottom cover 2 (FIG. 2) is removed, and the circuit board 3 attached to the electronic device body 1 has a coin-shaped An elastic cathode contact 5 that connects to the cathode and anode of the battery 4, respectively.
and an anode contact 6 are fixed by soldering. In addition, in order to prevent the coin-type battery 4 from flying out, a battery cover 7 is provided on the electronic device main body 1 in a detachable manner. 1, and the other end of the battery cover 7 is screwed and fixed to the electronic device main body 1 with screws 9.

[Problem that the invention seeks to solve]

However, the above-described structure not only requires the battery cover 7 and the screws 9, making the structure complicated, but also requires removing these members from the main body when replacing the coin-type battery 4. The work was complicated, the operability was very poor, and there were problems such as parts being lost.

[Means for solving problems]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide an electronic device having a battery mounting mechanism that has a simple structure and is easy to operate since no parts are lost during battery replacement. To this end, the present invention provides an electronic device having the following configuration, that is, a battery mounting mechanism.
6, a first contact member 18, and a second contact member 19, the battery storage part 15 is formed in one side of the circuit devices 10, 13, and is a notch having an inner part 15a and an outer part 15b. The coin-type battery 14 is housed therein, and the engaging body 16 is located inside the inner part 15a of the battery housing part 15.
The upper surface of the circuit device 10, 13 is formed to protrude above the circuit device 10, 13, and the upper surface thereof is an inclined surface 16a, and the lower side thereof is formed with a first engaging portion 16b, which engages with one of the upper ends of the coin-type battery 14. The first contact member 18 is a bent elastic plate disposed on the outer side 15b of the battery storage section 15 and comes into contact with the side surface of the coin-shaped battery 14, and the first contact member 18
The second contact member 19 has elasticity and is bent toward the battery storage section 15 above the middle part of the elastic plate to connect to the other upper end of the coin-shaped battery 14. A configuration is adopted in which the coin-shaped battery 14 is supported by being placed on the bottom surface of the storage section 15 and biased upward.

〔Example〕

Embodiments of the present invention will be described in detail below based on the drawings.

3 to 5 show one embodiment of the present invention. In FIG. 3, for example, an electronic device main body 10 such as a thin electronic desktop calculator has a bottom cover 11 and a top plate 12 (FIG. 4).
It is held and fixed together with the circuit board 13 inside. There is a rectangular notch in the central side portion of the circuit board 13, and a concave hole 15 into which the coin-type battery 14 is inserted is provided in a portion corresponding to the notch in the electronic device main body 10. There is a rib 16 (engaging body) formed protrudingly on the upper part of the electronic device main body 10 (circuit device A) at a position close to the inner side 15a of this concave hole 15 (battery storage part), and the upper surface of this rib 16 is The first engaging portion 16b is formed on the lower side of the inclined surface 16a, and one end of the coin-type battery 14 is engaged with the first engaging portion 16b.

In the conventional example (cross-sectional view) shown in FIG. 2, the claw 8 at the tip of the battery cover 7 is engaged with the lower surface of the protrusion corresponding to the rib 16. By engaging one end of the battery cover 7 and the screw 9, the battery cover 7 and the screw 9 can be omitted. Next, the fourth aspect of the present invention
Returning to the drawing, the upper right surface (the surface on the battery insertion side) of the rib 16 forms an inclined surface 16a that descends (as shown) toward the claw 17a (second engaging portion). On the other hand, the claw 17a bends and protrudes a part of the anode battery contact 18 (first contact member) in order to engage the other end of the coin-type battery 14. This anode battery contact 1
8 is a third hole near the outer part 15b of the concave hole part 15.
As shown in the figure, both ends are held and fixed to the circuit board 13 (circuit device B) by soldering, and when the coin type battery 14 is pressed into the concave hole 15, the rib 1
and the anode battery contact 18. Furthermore, the anode battery contact 19 (second contact member) having elasticity is
It is arranged at the bottom of a rectangular notch having the concave hole 15, and its upper end is held and fixed to the circuit board 13 by soldering.

After the coin-type battery 14 is inserted, the cathode battery contact 19 biases the battery 14 upward in FIG. The battery 14 is pressed against the second engaging portion. The anode battery contact 18 also has a battery removal claw 17b on the battery insertion side.
(battery removal protrusion) protrudes straight.

Next, the operation will be explained. When installing the battery, hold the upper right side of the coin-type battery 14 with a nail 1 as shown in Figure 5.
7a, press the battery 14 in the direction of arrow B while pressing the anode battery contact 18 in the direction of arrow A, slide the lower left surface of the battery 14 on the inclined surface 16a of the rib 16, and Attach as shown.

Conversely, when removing the battery 14, move the battery removal claw 17b together with the coin-shaped battery 14 in the direction of arrow C in FIG.
Move to the position indicated by the broken line in Figure 3. As a result, a space is created in the concave hole 15, and the coin-shaped battery 14 is released from the restriction by the protrusion of the rib 16 and ejected diagonally upward due to the pushing force of the cathode battery contact 19, so that it can be easily replaced.

[Effects of the Invention] As described above, according to the present invention, for example, the battery cover and screws shown in FIG. The structure of the battery storage chamber is simplified. and,
The anode battery contact and the cathode battery contact (that is, the first and second contact members) are both provided at predetermined positions, so when replacing the battery, there is no risk of wear or poor contact due to loss of parts or attachment/detachment. No such deterioration occurs.

Further, it is advantageous from the viewpoint of product packaging, and moreover, the attachment/detachment operation for battery replacement by electronic device users is greatly improved.

[Brief explanation of drawings]

Figure 1a is a rear view of an electronic device with a conventional battery mounting mechanism, Figure 1b is a front view of the battery cover, Figure 1c is a side view of Figure 1b, and Figure 2 is the same as Figure 1. −
3 is a back view of the embodiment according to the present invention, FIG. 4 is a sectional view taken along the - line in FIG. 3, and FIG. 5 is a sectional view taken along the - line when the battery is installed in FIG. 3. . 10...Electronic device main body (circuit device A), 13...
...Circuit board (circuit device B), 14...Coin type battery, 15...Concave hole (battery storage part), 15a...
...Inner part, 15b...Outer part, 16...Rib (engaging body), 16a...Slanted surface, 16b...First engaging part, 17a...Claw (second engaging part), 17b...Battery Removal claw (battery removal protrusion), 18...
Anode battery contact (first contact member), 19... cathode battery contact (second contact member).

Claims (1)

[Claims] 1. An electronic device having a battery mounting mechanism, wherein the battery mounting mechanism includes a battery storage section 15 and an engaging body 1.
6, a first contact member 18, and a second contact member 19, the battery storage part 15 is formed in one side of the circuit devices 10, 13, and is a notch having an inner part 15a and an outer part 15b. The coin-type battery 14 is housed therein, and the engaging body 16 is located inside the inner part 15a of the battery housing part 15.
The upper surface of the circuit device 10, 13 is formed to protrude above the circuit device 10, 13, and the upper surface thereof is an inclined surface 16a, and the lower side thereof is formed with a first engaging portion 16b, which engages with one of the upper ends of the coin-type battery 14. The first contact member 18 is a bent elastic plate disposed on the outer side 15b of the battery storage section 15 and comes into contact with the side surface of the coin-shaped battery 14, and the first contact member 18
The second contact member 19 has elasticity and is bent toward the battery storage section 15 above the intermediate portion of the elastic plate and engages with the other upper end of the coin-shaped battery 14. An electronic device having a battery mounting mechanism, which is disposed on the bottom surface of a battery storage section 15 to urge and support a coin-shaped battery 14 upward. 2. An electronic device having a battery mounting mechanism according to claim 1, wherein the first contact member 18 has a protrusion 17b for a battery removal claw.