JPH0655282U - Battery holding terminal - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a battery holding terminal which has a simple structure with a small number of parts and which can easily collect a battery from a printed circuit board after use. [Structure] The fixed terminals 31a, 31b of the terminal bodies 23a, b of the holding terminals 21a, b are soldered on the back surface of the printed circuit board 1, and the flat plate portions 25 of the spring contacts 24a, b are spot-welded to the end faces of the battery 22. Next, by fitting the terminal body 23a into the holding portion 26 of the spring contact 24a and the terminal body 23b into the holding portion 26 of the spring contact 24b, the terminal bodies 23a and 23b are fixed inside the holding portion 26 by the convex portion 29. . Further, if a force is applied in the direction of pulling the battery 22 away from the printed circuit board 1, the terminal bodies 23a and 23b are pulled out from the holding portion 26 and the spring contacts 24a and 24b.
The battery 22 can be easily removed by detaching the battery 22 from the holding terminals 21a and 21b.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a battery holding terminal of a printed board mounted on a personal computer and other electronic devices, and more particularly to a battery holding terminal of a printed board for non-detachably mounting a battery.

[0002]

[Prior art]

 Conventionally, printed circuit boards on which various components such as active components and passive components are mounted have been used in various electronic devices, while the need to add clock and timer functions to electronic devices has increased in recent years. As a result, there is an increasing demand for printed circuit boards that have batteries installed to keep these clock and timer functions operating all the time.

In order to obtain a printed circuit board on which such a battery is mounted, the following structure has been generally adopted as a structure for mounting the battery on the printed circuit board. First, as shown in FIG. 12, 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 portion of the terminal 4 is fixed to the printed board 1 by soldering. It was In this case, the battery 3 is fixed to the printed board 1 by soldering the terminals 4 to the printed board 1, and is electrically connected to the electric circuit of the printed board 1.

Further, in the structure shown in FIG. 13, the battery 5 is electrically connected to the printed circuit board 1 through the lead wire 6 and the coupler 7, and the battery 5 itself is separately connected to the printed circuit board 1 by some means. Fixed. Further, Japanese Patent Laid-Open No. 3-78963 discloses a battery mounting structure 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, the pin sockets 10 corresponding to the arrangement of the output pins 8 of the battery 9 are provided on the printed circuit board 1 in advance, and the pin sockets 10 A through hole 11 is provided in the vicinity, and the output pin 8 of the battery 9 is attached to the pin socket 10 for electrical connection, and the battery 9 is connected via the through hole 11 by the strip 12 made of an electrically insulating member. It is fixed to the printed circuit board 1. 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 electrically connected by internal wiring (not shown). Has been done.

[0005]

[Problems to be solved by the device]

 However, the above various conventional structures have the following problems, respectively. First, in the structure shown in FIG. 12, since the terminals 4 of the battery 3 are fixed to the printed circuit board 1 by soldering, when disassembling and discarding used electronic devices, the printed circuit board 1 is removed. There is a drawback that the work of collecting the battery 3 becomes complicated. To explain this point in more detail, recently, it is strongly required to collect used batteries after the necessity of recycling for the purpose of preventing environmental damage and saving resources. From this point, in the structure shown in FIG. When detaching from the printed circuit board 1, the soldering part where the terminals 4 of the battery 3 are fixed to the printed circuit board 1 must be destroyed, and the labor required for that is to remove the battery 3 from many printed circuit boards 1. There is a problem that the removal work becomes complicated. In addition, there is a problem in that the expensive printed circuit board 1 itself and peripheral parts may be damaged during the work.

Further, the structure shown in FIG. 13 has a drawback in that the lead wire 6, the connector 7 and the like are required for electrically connecting the battery 5 to the printed circuit board 1, and in that sense, the number of parts is large. Since the lead wire 6 has to be soldered to the battery 5, it is troublesome and there is a problem in workability. In addition, there is a problem in that it is necessary to study the arrangement and fixing structure of the battery 5 separately from the electrical connection. In addition, it is necessary to fix the lead wires 6 on the printed circuit board 1 as well, and therefore work such as band fixing and adhesive fixing is necessary, and in some cases, a separate battery box or the like is required. In addition, in the structure shown in FIG. 13, it is necessary to mount the pin connector on the mating side on the printed circuit board, and there is a problem that the cost is considerably increased including the component cost.

Further, in the structure shown in FIGS. 14 and 15, when recovering the battery 9 from the printed circuit board 1, the output pin 8 is pulled out from the pin socket 10 after the fixing of the battery 12 to the battery 9 is released. The work according to the procedure is required, and the labor required therefor complicates the work for removing the battery 9 from the large number of printed circuit boards 1, and the same problem as described with respect to the structure shown in FIG. 12 occurs. Also in the structure shown in FIGS. 14 and 15, the pin socket 10, the output pin 8, the box 9b and the strip 12, and the internal wiring of the box 9b are required, and the number of parts is larger than that of the structure shown in FIG. There is a problem.

Therefore, the present invention has been made in view of the above-mentioned problems in the prior art, and is used as a battery holding terminal for mounting a battery on a printed board and has a simple structure with a small number of parts and is used for printing after use. An object of the present invention is to provide a battery holding terminal that can easily collect a battery from a substrate.

[0009]

[Means for Solving the Problems]

 That is, the battery holding terminal of the present invention comprises a spring contact fixed to the battery and a terminal body fixed to the printed circuit board through the fixed terminal, and the spring contact holds the terminal body fitted therein. It is characterized in that a part is formed. The terminal body may be fixed to the printed board by soldering. By forming a stopper on the terminal body to prevent the spring contact from sliding in the holding portion, it is possible to prevent rattling between the spring contact and the terminal body when a battery is mounted. By spot welding the spring contact to the battery at multiple positions, it is possible to ensure the mutual fixation of the battery and the spring contact, and to provide a slit in the spring contact between the multiple spot welding positions. This can prevent a short-circuit current from flowing directly between the welding points during spot welding. By forming a convex portion projecting inward on the holding portion, the holding of the terminal body in the holding portion can be ensured. In that case, if the convex portion is formed only in the central portion excluding the end portion of the holding portion, the work of inserting and mounting the terminal body into the holding portion of the spring contact can be easily performed. Further, by forming a hole in the terminal body at a position corresponding to the spot welding position of the spring contact to the battery, the spring contact can be fixed to the battery by spot welding in a state where the spring contact and the terminal body are combined. .

[0010]

[Action]

 Therefore, according to the battery holding terminal of the printed circuit board of the present invention, the mounting of the battery on the printed circuit board and the recovery of the battery from the printed circuit board are performed as follows. That is, the terminal body of the battery holding terminal of the present invention was fixed to the printed circuit board by soldering the fixed terminal to the back surface of the printed circuit board, while the flat part of the spring contact was brought into contact with the end surface of the battery. Then, spot weld and fix the spring contact to the battery. Then, the terminal body is fitted into the holding portion of the spring contact so that the terminal body is fixed inside the holding portion, and the battery is fixed to the printed board through the spring contact and the terminal body. In addition, 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 of separating the battery from the printed circuit board, the terminal body is pulled out from the holding part of the spring contact and separated from the spring contact. Can be easily removed from the printed circuit board.

[0011]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a battery 22 having a holding terminal 21 attached thereto according to an embodiment of the present invention. As shown in the drawing, holding terminals 21a and 21b are attached to both ends of the battery 22, and the holding terminals 21a and 21b are the terminal bodies 23a and 23b and the spring contacts 24a into which the terminal bodies 23a and 23b are fitted. , 24b. The battery 22 is fixed to the printed circuit board 1 via the spring contacts 24a and 24b of the holding terminals 21a and 21b and the terminal bodies 23a and 23b.

As shown in FIGS. 4 and 5, the spring contacts 24 a and 24 b are flat plate portions 25 that directly contact the battery 22 and holding portions formed on both sides of the flat plate portions 25 integrally with the flat plate portions 25. And 26. The flat plate portion 25 has a slit 27 formed substantially in the center thereof so as to be cut inward from its edge portion, and the spring contacts 24a, 24b of the battery are sandwiched between the slits 27 as will be described later. Multiple spot weld points 28 for 22 are set. Further, the holding portion 26 is provided with a convex portion 29 so as to project inward from the wall portion thereof. The convex portion 29 is formed long only in the central portion from one end inside the holding portion 26 toward the other end except for the region 30 near the end.

On the other hand, as shown in FIGS. 6 and 7, fixed terminals 31a, 31a and 31b, 31b for the printed circuit board (not shown) are formed at the lower ends of the terminal bodies 23a, 23b. The terminal bodies 23a and 23b are fixed to the printed circuit board 1 by means of soldering or the like via 31 and 31b. Further, the distance a between the fixed terminals 31a, 31a and the distance b between the fixed terminals 31b, 31b are appropriately set in relation to the distance between the mounting holes formed in the printed circuit board 1 in advance. The distance b between the fixed terminals 31b and 31b is set narrower than the distance a between the fixed terminals 31a and 31b.

Further, a rectangular hole 32 is formed in substantially the center of each of the terminal bodies 23a and 23b. The position of the hole 32 is such that the terminal bodies 23a and 23b are combined with the spring contacts 24a and 24b. The spot contacts 28 of the spring contacts 24a and 24b are set as positions exposed to the outside. In addition, stoppers 33 are formed on the terminal bodies 23a and 23b at the base end positions of the fixed terminals 31a, 31a and 31b and 31b so as to project outward.

Therefore, according to the above holding terminals 21a and 21b, the battery 22 is mounted on the printed circuit board 1 as follows. As shown in FIGS. 8 to 10, the terminal body 23a of the holding terminal 21a is fixed to the printed board 1 by soldering the fixed terminals 31a and 31a on the back surface of the printed board 1. Further, the spot welding point 28 is spot-welded with the flat plate portion 25 of the spring contact 24a being in contact with the end surface of the battery 22, and the spring contact 24a is fixedly attached to the battery 22.

On the other hand, the terminal body 23b of the holding terminal 21b is fixed to the printed board 1 by soldering the fixed terminals 31b and 31b on the back surface of the printed board 1. At the same time, with the flat plate portion 25 of the spring contact 24b in contact with the end surface of the battery 22, the spot welding point 28 is spot-welded to fix the spring contact 24b to the battery 22. Next, the terminal body 23a is fitted in the holding portion 26 of the spring contact 24a, and the terminal body 23b is fitted in the holding portion 26 of the spring contact 24b. Thereby, the terminal bodies 23a and 23b are fixed inside the holding portion 26 by the convex portion 29 provided inside the holding portion 26. At this time, since the convex portion 29 is formed inside the holding portion 26 except for the end region 30, the terminal bodies 23a and 23b can be easily fitted into the holding portion 26. Further, since the stoppers 33 are formed on the terminal bodies 23a and 23b, the fitting of the terminal bodies 23a and 23b into the holding portion 26 is stopped at the position of the stopper 33.

In the above procedure, the terminal body 23a is fitted into the holding portion 26 of the spring contact 24a, the terminal body 23b is fitted into the holding portion 26 of the spring contact 24b, and the terminal bodies 23a and 23b are placed inside the holding portion 26 in advance. In this state, the spot contacts 28 are spot-welded with the flat plate portions 25 of the spring contacts 24a, 24b in contact with the end faces of the battery 22 to fix the spring contacts 24a, 24b to the battery 22. Alternatively, the holding terminals 21a and 21b may be assembled beforehand with the battery 22 as an assembly. In that case, the fixed terminals 31a, 31a and 31b, 31b of the terminal bodies 23a, 23b of the holding terminals 21a, 21b combined with the battery 22 are soldered on the back surface of the printed board 1 to the printed board 1. By fixing, the battery 22 can be attached to the printed board 1.

In particular, when the holding terminals 21a and 21b formed by combining the terminal bodies 23a and 23b with the spring contacts 24a and 24b in advance as described above are attached to the battery 22 in that state, the terminal bodies 23a and 23b are The hole 32 is formed in the hole, and even when the terminals 23a and 23b are combined with the spring contacts 24a and 24b, the spot welding point 28 is exposed to the outside from the hole 32, and spot welding is performed easily. Can be installed. Furthermore, since the stoppers 33 are formed on the terminal bodies 23a and 23b, even when the holding terminals 21a and 21b are formed by previously combining the terminal bodies 23a and 23b with the spring contacts 24a and 24b as described above. Since the terminal bodies 23a, 23b and the spring contacts 24a, 24b are fixedly positioned and combined by the stopper 33, they are fixed even when the battery 22 is fixed to the printed board 1 via the holding terminals 21a, 21b. The terminals 31a, 31a and 31b, 31b do not have any length.

Further, when the battery 22 mounted on the printed circuit board 1 is removed from the printed circuit board 1 as described above, if a force is applied in a direction of separating the battery 22 from the printed circuit board 1, the terminals 23a and 23b are held in the holding portion 26. The battery 22 can be easily removed from the print substrate 1 by pulling it out from the spring contacts 24a, 24b to separate the battery 22 from the holding terminals 21a, 21b. FIG. 11 shows another embodiment of the holding terminal of the present invention. In this embodiment, the stopper 41 provided on the terminal body 40 is formed by bending the terminal body 40. The battery 22 can be attached to the printed circuit board 1 and the battery 22 can be removed from the printed circuit board 1 in the same manner as in the above embodiment.

[0020]

[Effect of device]

 As described above, the holding terminal of the present invention comprises the spring contact fixed to the battery and the terminal body fixed to the printed circuit board through the fixed terminal. The spring contact holds the terminal body fitted therein. Since the parts are formed, the battery can be securely mounted and electrically connected to the printed circuit board with a simple structure having a small number of parts. Also, by using the holding terminal of the present invention, it is possible to easily collect the battery from the printed circuit board after use. In particular, since it is possible to easily collect post-use batteries, which have been strongly demanded by society for the purpose of preventing environmental damage and recycling for resource saving, with a small amount of labor, many printed circuit boards can be used. You can smoothly remove the battery.

[Brief description of 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 on arrow II in FIG.

FIG. 3 is a view on arrow III in FIG.

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

5 is a view on arrow V in FIG. 4. FIG.

FIG. 6 is a front view of another component of the holding terminal of the embodiment shown in FIG.

FIG. 7 is a front view of still another component of the holding terminal of the embodiment shown in FIG.

FIG. 8 is a diagram showing an aspect in which a battery is mounted on a printed circuit board by using the holding terminal of the embodiment shown in FIG.

FIG. 9 is a view taken along the arrow IX in FIG.

FIG. 10 is an X view taken in the direction of an arrow in FIG.

FIG. 11 is a side view showing a state in which a battery is mounted on a printed circuit board by holding terminals according to another embodiment of the present invention.

FIG. 12 is a cross-sectional view showing a conventional example of a battery mounting structure on a printed circuit board.

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

FIG. 14 is a partially cutaway perspective view showing another conventional example of a battery mounting structure on a printed circuit board.

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

[Explanation of symbols]

1 ... Printed circuit board, 22 ... Battery, 21a, 21
b ... holding terminal, 23a, 23b ... terminal body, 24
a, 24b ... Spring contact, 26 ... Holding portion,
27 ... Slit, 28 ... Spot welding point, 29
... Projections, 31a, 31a, 31b, 31b ... Fixed terminals, 32 ... Holes, 33 ... Stoppers.

Claims (7)

[Scope of utility model registration request] 1. A spring contact fixed to a battery and a terminal body fixed to a printed circuit board via a fixed terminal, and a holding portion into which the terminal body is fitted is formed in the spring contact. A battery holding terminal characterized by being formed. 2. The battery holding terminal according to claim 1, wherein the terminal body is fixed to the printed board by soldering. 3. The battery holding terminal according to claim 1, wherein the terminal body is provided with a stopper for stopping sliding of the spring contact in the holding portion. 4. The spring contact is spot welded to the battery at a plurality of positions, and a slit is formed in the spring contact between the plurality of spot welding positions. Battery holding terminal described. 5. The battery holding terminal according to claim 1, wherein the holding portion is formed with a convex portion that projects toward the inside of the holding portion. 6. The battery holding terminal according to claim 5, wherein the convex portion is formed excluding an end portion of the holding portion. 7. The battery holding terminal according to claim 1, wherein a hole is formed in the terminal body at a position corresponding to the spot welding position of the spring contact.