JPH0442956Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a structure for connecting a battery built in an electrical device to a printed board in the device.

(b) Prior art When connecting the battery inside the device and the circuit on the printed board in portable electrical equipment such as radios and tape recorders, conventionally, as shown in Figure 1,
Electrode plates 2a, 2b and 3a, 3b made of spring steel plates are attached to the ends of the battery compartment 1 in the device using eyelets 4, etc., and the electrode plates 2a, 2b are printed using lead wires 5, 6, respectively. It was designed to connect to predetermined conductor patterns 8 and 9 on the plate 7.

However, in such a conventional structure, the lead wires 5 and 6 must be manually soldered to the electrode plates 2a and 2b and the conductor patterns 8 and 9, and the lead wires 5 and 6 must be printed. Since work such as insertion into the gaps A and B between the plate 7 and the equipment case 10 is required, work efficiency is extremely low. Furthermore, since the electrode plates 2a, 2b and 3a, 3b, eyelets 4, etc. made of spring steel plates are required, there is also the drawback that the cost is high.

(c) Purpose of the invention The present invention has been made in consideration of the above points, and proposes a battery-accommodating electric device that requires less man-hours during assembly and can significantly reduce costs. The purpose is to

(d) Structure of the invention The battery-accommodating electric device of the invention comprises a printed circuit board with a conductor pattern formed at the rear end for connecting the battery, and a plurality of through holes provided at predetermined intervals on the conductor pattern. The synthetic resin is integrally molded so that the front half becomes the printed board mounting part to which the printed board is fixed, and the latter part becomes the battery storage part in which the battery is stored in the direction perpendicular to the rear end of the printed board. The end portion is inserted into the through hole on the conductor pattern, and is soldered to the conductor pattern, and extends vertically across the rear edge of the printed board.
The electrode steel wire is brought into contact with both sides of the printed board and is bent and shaped so as to sandwich the printed board by the corresponding contact portions, and is pressed into contact with the electrode on the printed board side of the battery arranged in the storage section. It is characterized by:

(E) Example Figure 2 shows an example of the present invention.
1 is a case made of synthetic resin for a remote control transmitter used in a television receiver or the like, and this case is divided into two parts: a battery storage part 12 and a printed board mounting part 13.

The battery storage section 12 is designed to accommodate two AA batteries in the direction of the illustrated battery mark, and one end of the battery storage section 12 has a first rib formed of a pair of ribs 14a and 14b facing each other. A second electrode comprising an electrode holding plate 14 and a similar pair of ribs 15a and 15b.
The electrode holding portion 15 is molded integrally with the inner surface of the case. Further, at the other end of the battery storage section 12,
A boss 16 with a screw hole and a third electrode holding part 17 consisting of ribs 17a, 17b, 17c, and 17d are integrally molded.
A spring steel wire 18 for the common electrode is inserted into and attached to the common electrode.

On the other hand, 19 is a printed board that is attached to the printed board mounting section 13, and this printed board is placed on the rubber switch sheet 20 (on the back side) that was previously attached to the mounting section 13, and
One end of this printed board is locked by claws 21, 21 integrally molded on the case 11. Also,
The other end (not shown) of the printed board 19 is also locked by a claw integrally molded on the case 11.

The printed board 19 has conductor patterns 22, 2 for connection with the battery at the end of the back side shown in FIG.
3 are formed, and each conductor pattern 22,
23 wide soldering land portions 22a, 2
A pair of through holes (not shown) are provided in each of 2b, 23a, and 23b. Then, a first hole shaped into each through hole as shown in Fig. 3 is inserted.
The respective ends of the spring steel wires 24 and 25 for the second electrode are inserted from opposite sides of the printed board 19. The spring steel wires 24 and 25 are brought into contact with both sides of the printed board 19, and the printed board 1
It is attached by sandwiching the 9 edges. Therefore, the spring steel wires 24 and 25 are temporarily fixed to the printed board 19 in an extremely stable state. In this state, each end of the spring steel wires 24, 25 is soldered by dipping or the like. Further, on the front surface side (the side not shown in FIG. 2) of this printed board 19, a pair of switch contacts are configured, each of which is opened and closed by each of the conductive contact pieces 20a formed on the switch sheet 20. A conductor pattern is formed.

The printed board 19 configured in this way has a fourth
As shown in the figure, a rubber switch sheet 20 is placed on a plurality of support ribs 26 integrally molded on the case 11.
After being placed on the top, it is locked by the claws 21, 21, etc., but in this state, the
The spring steel wires 24 and 25 for electrodes are attached to each pair of ribs 14a and 14 of the first and second electrode holding parts 14 and 15, respectively.
The battery 2 stored in the battery storage part 12 is slightly protruding from the space between b and between 15a and 15b.
It comes into pressure contact with the electrodes 29 and 30 of 7 and 28. At this time, the other electrode 3 of the batteries 27 and 28
1 and 32 are contact portions 18 of the common electrode spring steel wire 18
It is in pressure contact with a and 18b.

Note that a lid (not shown) is placed on the back side of the printed board, and this lid is screwed onto the aforementioned boss 16 (see FIG. 2) to be combined with the case 11.

Moreover, FIG. 5 shows another embodiment. That is, in this embodiment, the first electrode part 33a and the second electrode part 33b are continuously made from one spring steel wire 33 as shown in the figure, and the central convex part 3 of this spring steel wire 33 is
3c is inserted into the notch hole 34 of the printed board 19, and the part of the spring steel wire 33 in contact with the back side of the printed board 19 and the part in contact with the front side of the convex part 33c,
Spring steel wire 3 is sandwiched between the ends of the printed board.
3 and temporarily fix it. Then, in this temporarily fixed state, both ends of the spring steel wire 33 are soldered to the conductor patterns 22 and 23, and then the spring steel wire 33 is cut at the E section and F section shown in the figure. In this case, the spring steel wire 33 can be easily attached to the printed board 19, and work efficiency is further improved. In this embodiment, the first and second electrode holding parts 35 and 36 provided in the case 11 are in contact with the back side of the first and second electrode parts 33a and 33b as shown in the figure, and are pushed toward the rear of each electrode part. It is desirable to have a shape that prevents deformation.

Note that both of the above embodiments are cases in which two batteries connected in series are built in, but if only one battery is built in, the electrode portion located on the side far from the edge of the printed board 19 is Similarly, it must be connected to the printed board using lead wires.
However, in this case as well, the work of soldering and shaping the lead wire to the other electrode part can be omitted.

(F) Effects of the invention According to the battery-accommodating electric device of the invention, the electrode steel wire is brought into contact with both sides of the printed board, and the contact portions are bent and shaped so as to sandwich the printed board. Therefore, it is temporarily fixed to the printed board in an extremely stable state. Therefore, even if the printed board is moved for soldering, it will not fall off the printed board. Then, with the electrode steel wire temporarily fixed, use deep solder to
Since it can be soldered to the printed board at the same time as other electrical components, it is possible to reduce the manual soldering of the lead wires for connecting the battery electrodes and the printed board, as well as the work of shaping the lead wires after soldering. Furthermore, since an electrode plate having a specific shape formed by press molding or the like is not used, manufacturing costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional battery connection structure of electrical equipment, Fig. 2 is a perspective view showing an embodiment of the present invention in the middle of assembly, and Fig. 3 shows the printed board in Fig. 2 in the direction of the arrow. FIG. 4 is a sectional view showing the state of the above embodiment after assembly; FIG.
The figure is a perspective view of main parts showing another embodiment. 11... Case, 12... Battery storage section, 19...
...Printed board, 22, 23...Conductor pattern, 2
4, 25...Steel wire for electrode, 27...Battery.

Claims (1)

[Claims for Utility Model Registration] A printed board having a conductive pattern for connecting a battery formed at its rear end; a plurality of through holes provided at predetermined intervals on the conductive pattern; a case made of synthetic resin that is integrally molded so that it becomes a printed board mounting part to which a printed board is fixed, and the rear half serves as a battery storage part in which a battery is stored in a direction perpendicular to the rear end of the printed board; The end portion is inserted into the through hole on the conductive pattern, is soldered to the conductive pattern, and is brought into contact with both sides of the printed board by vertically crossing the rear edge of the printed board. A battery storage comprising: an electrode steel wire that is bent and shaped so as to sandwich the printed board by the corresponding contact portion, and is pressed into contact with an electrode on the printed board side of the battery arranged in the storage part. type electrical equipment.