JPH0338096A - Preventing structure for miserasure of memory at time of exchanging battery - Google Patents

Abstract

PURPOSE:To prevent memory miserasure at time of exchanging battery by inhibiting the sliding of a battery cap unless a new battery is mounted after an old battery is removed. CONSTITUTION:When both of two batteries 51 and 52 are mounted, levers 71 and 72 are displaced in the direction in which the levers 71 and 72 are separated farther from the batteries 51 and 52 and a battery cap 60 can make sliding motions, because notched sections of the levers 71 and 72 are faced to a groove 15 and a projecting piece 61 can move in the groove 15. When one 51 of the batteries is removed, the lever 71 advances to the position from which the battery 51 is removed and the piece 61 cannot move in the groove 15, namely, the cap 60 cannot make sliding motions. When a new battery 51 is mounted in such a state, the lever 71 is displaced in the direction in which the lever 71 is separated farther from the battery 51 and the cap 60 can make sliding motions. As a result, the battery 52 can be removed. Therefore, it is not possible to remove both batteries 51 and 52 at one time and miserasure of memory can be prevented at the time of exchanging battery.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention is applicable to equipment that has two batteries, such as a main battery and an auxiliary battery, when all the batteries are accidentally removed when replacing the batteries. This invention relates to a structure for preventing erroneous memory erasure when replacing batteries, which can prevent memory from being lost.

<Conventional technology> The conventional technology will be explained below with reference to the drawings.

FIG. 9 is a diagram for explaining a conventional memory erroneous erasure prevention mechanism, in which (a) is a plan view without a battery installed, and (b) is a plan view with a battery installed.

(C) Yes) is a sectional view taken along the line C-C, and (d) is a circuit diagram.

As shown in FIG. 9(a), a chassis 10 of electronic equipment, etc.
A pair of battery terminals 21 and 22 on the negative electrode side are provided in the battery holder part 11, which is a recess formed in a part of the battery holder. The battery terminals 21, 22 are electrically connected, and each of the battery terminals 21, 22 is cut and bent to form a plurality of contact pieces 23 that contact the negative electrode of the button-shaped battery. In addition, as battery terminals on the positive electrode side, a pair of battery terminals 31 and 31 correspond to the battery terminal 21.
However, a pair of battery terminals 32 and 32 are also provided corresponding to the power and other terminals 22. These battery terminals 3
1.32 is connected to the common piece 3o.

The positive electrode of the battery 51 placed on the battery terminal 21 contacts the battery terminals 31 and 31, as shown in FIG. 9(c).

In addition, the positive electrode of the battery 52 placed on the battery terminal 22,
Contact battery terminal 32.32. The batteries 51 and 52 are
As shown in FIG. 9(d), they are connected in parallel, and the positive electrode sides of these batteries 51, 52 are connected via the terminal 33 provided on the common piece 30 to the board shown in FIG. 9(C). 40 is connected to an electric circuit (not shown), and similarly a battery 51.
The negative electrode side of 52 is also connected to the board 40 via the battery terminal 2L 22.
is connected to an electric circuit (not shown).

If batteries 5L and 52 are removed at the same time by mistake, the memory will be lost, so to prevent this, either batteries 51 or 52 are always covered, as shown in Figure 9(e). A battery 112 like this is provided. This battery 112 can be slid left and right by operating the knob 13.

<Problem to be solved by the invention> By providing the battery M12 as described above, the battery 51
．． Although it is possible to prevent the batteries 52 from being removed all at once, when replacing the batteries 51 and 52, for example, first remove the batteries 51;
If you forget to remove the battery 51 and install a new battery 51 and move the slide cover 12 to remove the battery 52, both batteries will be removed, leaving the problem that the memory will be erased. .

The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a mechanism for preventing erroneous memory erasure during battery replacement, which prevents both batteries from being removed by mistake.

Means for Solving the Problems> In order to solve the above problems, the memory accidental erasure prevention mechanism of the present invention has a notch portion that is biased to advance to the mounting position of each of the two batteries provided in the chassis. a lever having a lever, a battery lid having a protrusion formed substantially perpendicular to the lever and slidably attached to the chassis so as to cover any of the batteries; and a groove provided in the chassis, and when the 11η battery is installed, the lever is displaced and the notch corresponds to the groove, allowing the convex vein to move within the groove, and the battery By removing the lever, the lever advances to the battery mounting position, and a portion of the lever that does not form the notch corresponds to the groove and blocks movement of the convex vein.

<Function> When both batteries are installed, the lever is displaced in the direction away from the battery by the battery, and the notch of the lever corresponds to the groove so that the convex vein can move within the groove. The battery cover can be slid. When one battery is removed to replace the battery, the lever advances to the battery installation position, and the part of the lever that does not have a cutout corresponds to the groove, and the convex vein cannot move within the groove, which means that the battery cover cannot slide.

When a new battery is installed, the lever is displaced by the battery in the direction away from the battery installation position, the notch of the lever corresponds to the groove, the protrusion can move within the premises, and the battery cover slides. be able to.

After this, remove the other battery and then install the new battery.

<Example> Hereinafter, an example of the present invention will be described with reference to the drawings. 1 to 7 are drawings for explaining one embodiment of the present invention, in which FIG. 1 is a plan view of the state where the battery and battery cover are not attached, and FIG. 2 is the same as that of FIG. 1. A-A line arrow sectional view, Figure 3 is a plan view with the battery and battery cover attached, and Figure 4 is the third
A sectional view taken along arrows BB and 4Q in the figure, and FIG. 5 are a perspective view of the lever. FIG. 6 is a perspective view for explaining the movement of the lever, in which (a) shows a state in which no battery is installed, and (b) shows a state in which a battery is installed. FIG. 7 is a plan view for explaining the movement of the battery cover when one battery is not inserted. Components similar to or similar to those of the conventional memory erase prevention mechanism described in FIG. 9 will be described with the same reference numerals as in FIG. 9.

As shown in FIG. 1(a), a chassis 10 of electronic equipment, etc.
A pair of battery terminals 21 and 22 on the negative electrode side are provided in the battery holder part 11, which is a recess formed in a part of the battery holder. These battery terminals 21.22 are the same as the battery terminals 21.22 explained in FIG. 9, so their explanation will be omitted.

As battery terminals on the positive electrode side, a battery terminal 31 is provided corresponding to the battery terminal 21, and a battery terminal 32 is provided corresponding to the battery terminal 22. These battery terminals 31 , 32 are connected to the common piece 30 .

The positive electrode of the battery 51 placed on the battery terminal 21 contacts the battery terminal 31, as shown in FIG. Further, the positive electrode of the battery 52 placed on the battery terminal 22 is connected to the battery terminal 32.
come into contact with. Batteries 51 and 52 are connected in parallel as shown in FIG. Similarly, the negative electrode side of the battery 5152 is also connected to an electric circuit (not shown) of the board 40 via the battery terminal 2L 22.

Reference numerals 71 and 72 are levers for detecting whether or not the batteries 51 and 52 are installed, and are arranged in a pair of grooves 16 provided in the chassis 10 so as to be electrically connected to the battery holder part 11. . The levers 71, 72, as shown in FIG.
A notch 75 is provided on the upper long side 76 of the rectangle, and an opening 74 is formed.

As shown in FIG. 1(a), a spring 73 having a rectangular shape is inserted through the opening 74. As shown in FIG. The spring 73 biases the levers 71, 72 to advance into the battery holder portion 11.

A groove 15 is formed in the chassis 10 so as to be perpendicular to the groove 16, and the groove 15 is formed so as to fit into a convex groove 61 formed on the back side of the battery cover 60 over the entire width of the battery 160. ing. The flat battery cover 60 has a third
As shown in the figure, it is attached to the chassis IO so as to cover either one of the batteries 51 and 52. And batteries! [As shown in FIG. 4, hook-shaped portions 62 having a hook-shaped cross section are formed at the upper and lower end portions of the 60 (upper and lower in FIGS. 3 and 4). The shaped portion 62 fits loosely into the hooked portion 17 formed as a part of the chassis 1O so as to come into contact with the substrate 40, so that the battery M2O does not come off from the chassis 10; it can slide in the longitudinal direction of 115. can.

Next, the operation of this embodiment will be explained. When two batteries 51 and 52 are installed in the battery holder part 11,
The levers 71, 72 are each displaced by the batteries 51, 52 in a direction away from the battery holder part 11 (downward in FIG. 3) against the elasticity of the springs 73. Therefore,
As shown in FIG. 6(b), the lever 71
Since the notch 75 is located at a position opposite to the groove 15, the protrusion 61 of the battery M2O can be slid while being fitted into the groove 15.

When the batteries 5L and 52 shown in FIG.
When trying to replace the battery 51 by sliding it to the left (to the left in Figure 3), a new battery 52 is not installed, so as shown in Figure 5 (a) (Figure 5 (a) ), (
b) Both show the movement of the lever 71, but the lever 7
2 moves similarly to the movement shown in these figures), the lever 72 extends into the battery holder part 11, so that the upper long side 76 of the lever 72 is in the groove 1.
Since the long side 76 protrudes from the upper end of the battery cover 5 and faces the groove 15, the convex vein 61 of the battery cover 60 is blocked by the long side 76, making it impossible for the battery 160 to slide to the left. That is, since the battery cover 60 does not move unless a new battery 52 is installed, the battery 51 cannot be replaced. In this way, it is possible to prevent both batteries 51 and 52 from being removed at the same time.

FIG. 8 is a perspective view of a lever and a board for explaining another embodiment of the present invention. The lever 77 is formed by integrally forming the lever 7172 and the spring 73 of the previous embodiment in a box-like shape, and both ends of the lever 77 also serve as the battery terminals 31 and 32. A protrusion 78 is formed at the center of the lever 77, and the protrusion 78 is inserted into the hole 18 made in the substrate 10, and the protrusion 78 is inserted into the substrate 10.
The positive electrodes of the batteries 51 and 52 can be electrically connected to the substrate IO by electrically connecting them to the wiring pattern 19 provided on the substrate IO.

<Effects of the Invention> As explained above, the structure for preventing erroneous memory erasure during battery replacement of the present invention includes a lever having a notch that is biased to advance to the mounting position of each of the two batteries, and The battery cover has a convex vein formed almost perpendicular to the lever and is slidably attached to the chassis so as to cover any of the batteries, and a groove provided in the chassis to fit into the convex vein. When the battery is installed, the lever is displaced and the notch corresponds to the groove, allowing movement within the convex groove, and when the battery is removed, the lever advances to the battery installation position and the notch of the lever corresponds to the groove. The portions that are not formed correspond to the grooves and block the movement of the convex veins.

Therefore, the memory accidental erasure prevention structure of the present invention prevents the battery lid from sliding unless a new battery is installed after removing the battery when replacing the battery. Erroneous erasure of memory during replacement can be completely prevented.

[Brief explanation of drawings]

1 to 7 are drawings for explaining one embodiment of the present invention, in which FIG. 1 is a plan view of the state where the battery and battery cover are not attached, and FIG. 2 is the same as that of FIG. 1. A-A line arrow sectional view, 3rd
4 is a sectional view taken along the line BB in FIG. 3, and FIG. 5 is a perspective view of the lever. FIG. 6 is a perspective view for explaining the movement of the lever, in which (a) shows a state in which no battery is installed, and (b) shows a state in which a battery is installed. FIG. 7 is a plan view for explaining the movement of the battery cover when one battery is not inserted, and FIG. 8 is a perspective view of the lever and the board for explaining another embodiment. FIG. 9 is a diagram for explaining a conventional memory erase prevention mechanism, in which (a) is a plan view with no battery installed, (b) is a plan view with a battery installed, and ( C
) is a sectional view taken along the line C-C in (b), (d) is a circuit diagram, (
e) is a plan view with the battery and battery cover attached. lO... Chassis, 15... Groove, 51.52...
・Battery, 60...Battery cover, 61...Convex vein, 7I, 7
2.77・Lever, 75・・Notch.

Claims (1)

[Claims] (1) A lever with a notch that is biased to advance to the installation position of each of the two batteries provided on the chassis, and a convex vein formed almost perpendicular to the lever, which is attached to either of the batteries. a battery cover slidably attached to the chassis so as to cover the battery cover, and a groove provided in the chassis so as to fit into the convex groove, and when the battery is attached, the lever is displaced and the A notch corresponds to the groove and allows the convex vein to move within the groove, and when the battery is removed, the lever advances to the battery mounting position to form the notch of the lever. A structure for preventing erroneous memory erasure at the time of battery replacement, characterized in that a portion that is not covered corresponds to the groove and blocks movement of the convex vein.