JP2578301Y2 - Battery holding terminal - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery holding terminal of a printed circuit board mounted on a personal computer and other electronic devices, and more particularly to a battery holding terminal of a printed circuit board for non-detachably mounting a battery. is there.

[0002]

2. Description of the Related Art Conventionally, printed circuit boards on which various components such as active components and passive components are mounted have been used for various electronic devices. On the other hand, the necessity for imparting a clock function and a timer function to electronic devices has recently been increasing. As a result, the demand for printed circuit boards on which batteries for constantly operating these clock and timer functions are increasing.

In order to obtain a printed board on which such a battery is mounted, the following structure has conventionally been generally employed as a structure for mounting a battery on the printed board.
First, as shown in FIG. 13, there is a structure in which the terminal 4 of the battery 3 is inserted into the terminal hole 2 provided in the printed board 1, and the end of the terminal 4 is fixed to the printed board 1 by soldering. Was. In this case, the printed circuit board 1 of the terminal 4
The battery 3 is fixed to the printed board 1 by soldering, and is electrically connected to an electric circuit of the printed board 1.

In the structure shown in FIG. 14, the battery 5 is electrically connected to the printed circuit board 1 via the lead wires 6 and the coupler 7, and the battery 5 itself is fixed to the printed circuit board 1 by some other means. Is done. Japanese Patent Laid-Open No. Hei 3
No. 789633 shows a structure for mounting a battery on a printed circuit board as shown in FIGS. In the structure shown in the figure, when mounting the battery 9 having the output pins 8 on the printed circuit board 1, a pin socket 10 corresponding to the arrangement of the output pins 8 of the battery 9 is provided in advance on the printed circuit board 1 and the vicinity of the pin socket 10 is provided. The output member 8 of the battery 9 is mounted on the pin socket 10 to be electrically connected to the pin socket 10.
2, the battery 9 is fixed to the printed circuit board 1 through the through hole 11. In the structure shown in the figure, the battery 9 has a plurality of button batteries (not shown) inside the box 9a, and each button battery and the output pin 8 are also electrically connected by an internal wiring (not shown). Have been.

[0005]

However, the above-mentioned various conventional structures have the following problems. First, in the structure shown in FIG. 13, since the terminals 4 of the battery 3 are fixed to the printed circuit board 1 by soldering, the battery 3 is collected from the printed circuit board 1 when disassembling and disposing of the used electronic device. There is a disadvantage that the operation to perform is complicated. This point will be described in more detail. Recently, the collection of used batteries has been strongly demanded for the purpose of prevention of environmental destruction and recycling for resource saving. In view of this, the battery 3 in the structure shown in FIG. When removing the battery 3 from the printed circuit board 1, the soldered portion where the terminal 4 of the battery 3 is fixed to the printed circuit board 1 must be destroyed, and the labor required for the removal is large. There is a problem that the operation is complicated. In addition, expensive printed circuit board 1
There is also a problem that the device itself and peripheral components may be damaged.

In addition, the structure shown in FIG. 14 requires a lead wire 6, a connector 7 and the like for electrical connection of the battery 5 to the printed circuit board 1, and in that sense, the number of components is increased. Since the lead wire 6 must be soldered to the wire 5, it takes much time and there is a problem in workability. In addition, there is a problem that it is necessary to examine the arrangement of the battery 5 and the fixing structure separately from such electrical connection. In addition, it is necessary to fix the lead wire 6 on the printed circuit board 1, so that it is necessary to perform operations such as band fixing and adhesive fixing, and in some cases, a separate battery box or the like is required. In addition, in the structure shown in FIG. 14, it is necessary to mount the pin connector on the mating connection side on the printed circuit board, and there is a problem that the cost is considerably increased including parts cost.

Further, in the structure shown in FIGS. 15 and 16, in recovering the battery 9 from the printed circuit board 1, the pin socket 10 is released after the fixing of the strip 9 to the battery 9 is released.
The operation of pulling out the output pin 8 is necessary, and the labor required for the operation complicates the operation of removing the battery 9 from the large number of printed circuit boards 1. The same problem as described with reference to the structure shown in FIG. Occurs. Also, the structure shown in FIGS. 15 and 16 requires the pin socket 10, the output pin 8, the box 9b and the strip 12, and the internal wiring of the box 9b, and the number of parts is larger than that of the structure shown in FIG. There's a problem.

Accordingly, the present invention has been made in view of the above-mentioned problems in the prior art, and has been used as a battery holding terminal for mounting a battery on a printed circuit board. It is an object of the present invention to provide a battery holding terminal capable of easily collecting a battery from a battery.

[0009]

That is, the battery holding terminal of the present invention comprises a terminal body fixed to the battery and a spring contact fixed to the printed circuit board via the fixing terminal. Is characterized in that a holding portion is formed to fit the locking portion formed on the terminal body. The spring contact may be fixed to the printed circuit board by soldering. The terminal body is spot-welded to the battery at a plurality of positions, so that the battery and the terminal body can be securely fixed to each other. Spots can be provided by providing slits in the terminal body between the plurality of spot welding positions. It is possible to prevent a short-circuit current from flowing directly between welding points during welding. The holding portion has a convex portion protruding inward, so that the holding of the spring contact in the holding portion can be ensured. In this case, if the convex portion is formed only at the central portion except for the end portion of the holding portion, the work of fitting the terminal body into the holding portion of the spring contact can be easily performed. Furthermore, by forming a cutout in the spring contact at a position corresponding to the spot welding position of the terminal body to the battery, the terminal body can be fixed to the battery by spot welding in a state where the terminal body and the spring contact are combined.

[0010]

Therefore, according to the battery holding terminal of the printed circuit board of the present invention, mounting of the battery on the printed circuit board and collection of the battery from the printed circuit board are performed as follows. That is, the spring contact of the battery holding terminal of the present invention was fixed to the printed board by soldering the fixed terminal on the back surface of the printed board, while the flat plate portion of the terminal body was brought into contact with the end face of the battery. The terminal body is fixed to the battery by spot welding in the state. Next, the terminal body is fixed inside the holding part by fitting the terminal body into the holding part of the spring contact, and the battery is fixed to the printed circuit board via the terminal body and the spring contact. Also, when removing the battery mounted on the printed circuit board from the printed circuit board as described above, if a force is applied in the direction to separate the battery from the printed circuit board, the terminal body will be pulled out from the spring contact holding part and detached from the spring contact. Can be easily removed from the printed circuit board.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a battery 22 with a holding terminal 21 according to an embodiment of the present invention. As shown in the figure, the battery 22 has holding terminals 21a, 21b attached to both ends thereof, and the holding terminals 21a, 21b are composed of spring contacts 23a, 23b and terminal bodies 24a, 24b in which the spring contacts 23a, 23b are combined. Consisting of The battery 22 is fixed to the printed circuit board 1 via the terminal bodies 24a and 24b of the holding terminals 21a and 21b and the spring contacts 23a and 23b.

As shown in FIGS. 4 and 5, the terminal members 24a and 24b are provided with a flat plate portion 25 directly in contact with the battery 22, and on both sides of the flat plate portion 25 with the flat plate portion 25.
And a locking portion 26 formed in a manner to be bent from the front. Further, a slit 27 is formed in the flat plate portion 25 at a substantially central portion thereof in such a manner as to cut inward from an edge portion thereof.
As will be described later, a plurality of spot welding points 28 on the battery 22 of the terminal bodies 24a and 24b are set with the slit 27 interposed therebetween.

On the other hand, as shown in FIGS. 6 and 7, the spring contacts 23a and 23b have fixed terminals 29a, 29a and 2
9b, 29b are formed and the fixed terminals 29a, 29
a and spring contacts 23a via 29b, 29b,
23b is fixed to the printed circuit board 1 by means such as soldering. The distance a between the fixed terminals 29a, 29a and the distance b between the fixed terminals 29b, 29b are appropriately set in relation to the distance between the mounting holes formed in the printed circuit board 1 in advance. The interval b between the fixed terminals 29b, 29b is set to be narrower than the interval a at 29a.

The fixed terminals 29a, 29a and the fixed terminals 29b, 29b are connected to the spring contacts 23a, 23b.
The holding part 30 is formed above. The holding portion 30 is provided with a convex portion 31 so as to protrude inward from the inner wall portion. The convex portion 31 extends from one end inside the holding portion 30 to the other end except for a region 32 near the end. It is formed long only in the central part. Further, a notch 33 is formed at substantially the center of each of the spring contacts 23a and 23b.
Position is that the spring contacts 23a and 23b are
4a, 24b, the terminal bodies 24a, 2b
4b are set as positions where a plurality of spot welding points 28 are exposed to the outside.

Therefore, according to the holding terminals 21a and 21b, the battery 22 is mounted on the printed circuit board 1 in the following manner. As shown in FIGS. 8 to 10, the spring contact 23a of the holding terminal 21a is fixed to its fixed terminal 29a,
29a is fixed to the printed circuit board 1 by soldering on the back surface of the printed circuit board 1. Further, in a state where the flat plate portion 25 of the terminal body 24a is in contact with the end face of the battery 22, a spot welding point 28 is spot-welded to the terminal body 24a.
a is fixed to the battery 22.

On the other hand, the spring contact 2 of the holding terminal 21b
3b is fixed to the printed circuit board 1 by soldering the fixing terminals 29b, 29b on the back surface of the printed circuit board 1. At the same time, the flat plate portion 2 of the terminal body 24b
The terminal body 24b is fixed to the battery 22 by spot welding the spot welding point 28 in a state where the terminal body 5 contacts the end face of the battery 22. Next, the locking portion 26 of the terminal body 24a is attached to the holding portion 30 of the spring contact 23a.
Into the holding portion 30 of the spring contact 23b. As a result, the locking portions 26 of the terminal bodies 24a and 24b are held by the holding portions 3 by the convex portions 31 provided inside the holding portion 30.
0 fixed inside. At this time, the convex portion 31 is
Since the end portions 32 are formed on the inside except for the end region 32, the fitting of the locking portions 26 of the terminal bodies 24a and 24b into the holding portion 30 can be easily performed.

In the above procedure, the terminal 24
a of the retaining portion 26 of the spring contact 23a.
And the locking portion 26 of the terminal body 24b is connected to the spring contact 23b.
Of the terminal bodies 24a, 24b to be fixed inside the holding parts 30 of the spring contacts 23a, 23b, and the flat portions 25 of the terminal bodies 24a, 24b.
The spot welding point 2 is
8 by spot welding to connect the terminals 24a and 24b to the battery 22.
And the holding terminals 21a and 21b can be assembled in advance in a state where the holding terminals 21a and 21b are combined with the battery 22. In that case, the holding terminal 21a combined with the battery 22,
Fixed terminals 29 of spring contacts 23a, 23b of 21b
The battery 22 can be mounted on the printed circuit board 1 by fixing the a, 29a and 29b, 29b to the printed circuit board 1 by soldering on the back surface of the printed circuit board 1.

In particular, the holding terminals 21a, 21b formed in advance by combining the spring contacts 23a, 23b with the terminal bodies 24a, 24b as described above are used for the battery 2 in that state.
2, the spring contacts 23a, 23
b, a notch 33 is formed, and the spring contact 23 is formed.
The spot welding point 28 is exposed to the outside from the notch 33 even when the terminals 23a and 23b are combined with the terminals 24a and 24b, and can be easily spot-welded. Further, when the battery 22 mounted on the printed circuit board 1 is detached from the printed circuit board 1 as described above, a force is applied in a direction in which the battery 22 is separated from the printed circuit board 1 so that the locking portions 26 of the terminal bodies 24a and 24b can be held. 30 and pulled out of the spring contacts 23a and 23b to remove the battery 2
2 can be separated from the holding terminals 21a and 21b, and the battery 22 can be easily removed from the printed circuit board 1.

[0019]

As described above, the holding terminal of the present invention is composed of the terminal body fixed to the battery and the spring contact fixed to the printed circuit board via the fixing terminal. Since the holding portion for fitting the locking portion formed on the body is formed, the battery can be securely mounted on the printed circuit board and electrically connected with a simple structure having a small number of components. In addition, by using the holding terminal of the present invention, the battery can be easily collected from the used printed circuit board. In particular, recently used batteries, which are strongly demanded by society for the purpose of preventing environmental destruction and recycling for resource saving, can be easily collected with little labor. The work of removing the battery can also be performed smoothly.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing a state in which a battery is mounted on a printed circuit board by a holding terminal according to an embodiment of the present invention.

FIG. 2 is a view taken in the direction of the arrow II in FIG.

FIG. 3 is a view taken in the direction of the arrow III in FIG. 1;

FIG. 4 is a front view of components of the holding terminal of the embodiment shown in FIG.

5 is an IV diagram as viewed from the direction of the arrow in FIG. 4;

6 is a view taken in the direction of arrow V in FIG. 4;

FIG. 7 is a front view of other components of the holding terminal of the embodiment shown in FIG.

8 is a view taken in the direction of arrow VIII in FIG. 7;

FIG. 9 is a front view of still another component of the holding terminal of the embodiment shown in FIG. 1;

FIG. 10 is a view showing one mode of mounting a battery on a printed circuit board by the holding terminals of the embodiment shown in FIG. 1;

FIG. 11 is a XI view as viewed from the direction of the arrow in FIG. 10;

FIG. 12 is a XII view as viewed from the direction of the arrow in FIG. 10;

FIG. 13 is a cross-sectional view showing a conventional example of a structure for mounting a battery on a printed circuit board.

FIG. 14 is a cross-sectional view showing another conventional example of a structure for mounting a battery on a printed circuit board.

FIG. 15 is a partially cutaway perspective view showing another conventional example of a structure for mounting a battery on a printed circuit board.

16 is a partially cutaway perspective view showing a state where the battery is mounted on the printed circuit board by the structure for mounting the battery on the printed circuit board shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Printed circuit board, 22 ... Battery, 21a, 21
b: holding terminal, 23a, 23b: spring contact, 24a, 24b: terminal body, 26: locking part,
27: slit, 28: spot welding point, 29
a, 29a, 29b, 29b ... fixed terminals, 30 ...
-Holding part, 31 ... convex part, 33 ... notch.

Claims (6)

(57) [Scope of request for utility model registration] 1. A pair of terminal bodies fixed to both poles of a battery , and a pair of spring contacts fixed to a printed circuit board via fixing terminals. A battery holding terminal, characterized in that a holding portion is formed to fit a locking portion formed on the terminal body. 2. The battery holding terminal according to claim 1, wherein the spring contact is fixed to the printed circuit board by soldering. 3. The battery holder according to claim 1, wherein the terminal body is spot-welded to the battery at a plurality of positions, and a slit is formed in the terminal body between the plurality of spot-welding positions. Terminal. 4. The battery holding terminal according to claim 1, wherein the holding portion has a protrusion protruding toward the inside of the holding portion. 5. The battery holding terminal according to claim 4, wherein the convex portion is formed except for an end of the holding portion. 6. The battery holding terminal according to claim 1, wherein a cutout is formed in the spring contact at a position corresponding to the spot welding position of the terminal body.