JPH0430709B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a connection terminal structure in a battery case.

Conventional technology Conventionally, this type of connection terminal is as shown in Fig. 3.
The terminal shaft 1 is passed through a horizontal rib 4 protruding from the inner surface of a frame-shaped synthetic resin cabinet 3 constituting the battery case 2, and the terminal shaft 1 is held movably up and down using the rib 4 as a guide. An insulating protection bushing 5 is installed at the tip to prevent accidents such as metal objects coming into contact with the terminals and causing a short circuit.
The structure is such that the bush 5 protrudes above the tip of the terminal, a lug plate 6 is caulked to the lower end of the terminal shaft 1, and a lead wire 7 is soldered to this to connect it to the battery inside the case. Further, a flange 8 is formed integrally with the terminal shaft at the midsection of the terminal shaft 1, and a coil spring 9 is inserted into the terminal shaft 1 between the lower surface of the flange 8 and the upper surface of the horizontal rib 4 described above, and the terminal shaft 1 is held in place. It had a similar structure.

When connecting the battery case 2 having such a connection terminal to an electric device such as a player, the connection terminal is pressed against a connection terminal plate provided at a position corresponding to the connection terminal on the bottom of the device body, It was electrically conductive.

Problems to be Solved by the Invention However, the conventional structure had the following problems.

(1) A coil spring 9 for pressing the terminal shaft 1 against the terminal plate of the main body, a guide plate 4 (horizontal rib) that holds the terminal shaft 1 movably up and down, and a lug plate 6 that connects the terminal shaft 1 and the lead wire 7. The solder connections between the lug plate 6 and the lead wires 7, etc. are configured in series in the vertical direction, and in order to house these parts in the battery case 2, the entire thickness of the battery case 2 is required. In addition, since the bottom pulse 10 of the battery case 2 is often formed of a metal plate, when the lug plate 6 to which the lead wire 7 is soldered is pushed downward (when it is in a state of engagement with the main body), This lug board 6 and the bottom panel 10
Since there is a possibility of contact with the bottom pulse, and depending on the variation, some may come into contact with each other, so in order to prevent this, it was necessary to attach an insulating sheet 11 to the inner surface of the bottom pulse. As a result, many dimensions have to be added in the above-mentioned vertical direction, resulting in an increase in the thickness of the battery case.

(2) Also, since the terminal shaft 1 must be fitted into the horizontal rib 4 of the cabinet 3, if the battery case 2 requires two or three terminal shafts 1, the battery case 2 must be assembled. This sometimes requires a large amount of man-hours, and it is necessary to assemble the terminal shaft 1 together with the battery to be assembled into the battery case 2, resulting in a complicated work.

The other parts that make up the connection terminal include a bush 5 and a coil spring (not shown) that holds the bush 5 facing upward, and these must be assembled when inserting the top cover 12 of the battery case 2. Therefore, the detailed assembly work had to be performed during the assembly work of the battery case 2, which was complicated.

An object of the present invention is to realize a structure that reduces such dimensions, and to eliminate the need to assemble connection terminals at the same time during the final step of assembling the battery into the battery case.

Means for Solving the Problems To this end, the present invention includes a movable terminal shaft that supplies electricity from a battery case to an electric device such as a player;
A bush that covers the side surface of the terminal shaft and moves along the terminal shaft, an outer periphery of this bush that surrounds the bush and its inner wall as a guide part, a shelf below the bush, and a shelf that is placed on the terminal shaft. a terminal holder with a movable guide hole penetrating through the terminal holder, and a guide that engages the terminal holder and presses and holds both ends of the bush along the terminal shaft, and The connection terminal structure is made by caulking and fixing a thin flexible cord that is electrically conductive from the midsection.

Function: By caulking a thin flexible cord to the midsection of the terminal shaft in this way, it is possible to reduce the size of the structure that connects the terminal shaft and the lead wire for electrical continuity, and the flexible cord is thin and flexible. Since the wire is rich in wire, even if it is fixed to the terminal shaft and the terminal shaft moves, it has flexibility between it and the lead wire. Furthermore, since the connecting terminal is unitized, the process can be completed by simply arranging the connecting terminal at a predetermined position without assembling individual parts when assembling the battery.

Example Examples of the present invention will be described below.

1 is a battery case, 2 is a connection terminal for supplying electricity from the battery case 1 to the terminal 4 of the player 3, and this connection terminal is composed of the following parts. 5 is a movable terminal shaft that presses into contact with the terminal 4; 6 is a bush that covers the side surface of the terminal shaft and is movable along the terminal shaft; 7 surrounds the outer periphery of the bush 6 and uses its inner wall as a guide portion 7'. In one example, a shelf part 8 is disposed below the bush 6, and a guide hole 9 is formed in the shelf part 8 so that the terminal shaft 5 passes through the terminal shaft 5 and is movable. The lower end 14 of the terminal shaft 5 has a guide pin 13 which is fitted with a claw portion 11 and which presses and holds both ends 12 of the bush 6 along the terminal shaft 5.
A terminal board having a seat 16 containing a spring 15 for further pressing, 17 a flexible cord electrically connected to the midsection 18 of the terminal shaft 5, and 19 integrally formed with the midsection 18 of the terminal shaft. The flange 20 is a coil spring that presses the bush 6 and is inserted into the guide pin 13 of the terminal board 10. Numerals 21 are claws provided at both ends of the bush 6 and are engaged with locking portions 22 inside both ends of the terminal holder 7. 23 is an inverted U on both ends of the terminal board 10.
The claws 11 provided at both ends of the terminal holder 7 are engaged with the holding portions formed in the shape of a letter, and the connecting terminal 2, which is made up of the above-mentioned series of parts, is attached to the inside of the cabinet 24, which is the resin frame of the battery case 1. It is engaged with a protrusion (not shown) provided on the wall.

The connection terminal 2 is sandwiched between the bottom panel 25 of the battery case 1 and the battery case lid 26 from above and below in a sandwich-like manner.
5 is fitted so as to wrap around the outer periphery of the cabinet 24 from the lower surface thereof, and the battery case lid 26 is fitted onto the inner wall of the cabinet 24 in the form of a dowel.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) Unlike conventional connection terminals, the connection terminals are unitized and function independently without being incorporated into the battery case, and can be compactly stored within the limited thickness of the battery case. . This is because the flexible cord is dimensionally effectively caulked and fixed to the midsection of the terminal shaft, and the vertical movement of the terminal shaft can be absorbed by the flexibility of the flexible cord.

(2) In the normal state, the connecting terminal is pressed by the coil springs 20 inserted at both ends of the bushing and rises to the maximum extent as shown by the two-dot chain line in FIG. The terminal shaft 5 is held by the flange 1 provided on the midsection 18.
The top surface of the terminal shaft 9 contacts the bottom surface of the shelf section 8 of the terminal holder 7, and its movement is restricted, and the terminal shaft is covered with a bushing, which prevents it from being thrown between the terminals. It has been realized.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the mounting positional relationship of the connection terminals of the battery case in the present invention, Fig. 2 is a perspective view showing the connection terminals, Fig. 3 is a sectional view showing the connection terminal portion of the conventional example, and Fig. 4 is A vertical cross-sectional view of the connecting terminal according to the present invention, FIG. 5 is a cross-sectional view showing the positional relationship between the connecting terminal of the battery case and the main body of the electrical equipment, and FIG. 6 is a cross-sectional view of the connecting terminal when it is in the normal open state. figure,
FIG. 7 is a cross-sectional view showing how the pressing coil spring of the terminal holder is housed. 1...Battery case, 2...Connection terminal, 5...Terminal shaft, 6...Button, 7...Terminal holder, 1
0...Terminal board, 7'...Guide part, 8...Shelf part,
9... Guide hole, 15... Spring, 16... Seat part,
18...mid abdomen, 17...flexible cord,
19...Flange, 13...Guide pin, 20...
...Coil spring, 11...Claw portion.

Claims (1)

[Scope of Claims] 1. A battery case, a movable terminal shaft that supplies power to electrical equipment from a battery built into the case, a bushing that covers the side surface of the terminal shaft and moves along the terminal shaft, and a bushing that covers the side surface of the terminal shaft and moves along the terminal shaft. This terminal holder is attached to a terminal holder whose outer periphery is surrounded and whose inner wall serves as a guide part, and a shelf part is disposed below the bushing, and the terminal shaft is passed through the shelf part to form a movable guide hole. and a terminal board having a guide that presses and holds both ends of the bushing along the terminal shaft, and a seat containing a spring that presses the terminal shaft from its lower end; A connection terminal structure in a battery case to which an electrically conductive cord is fixed. 2 A flange is integrally formed in the midsection of the terminal shaft,
A connection terminal structure in a battery case according to claim 1, wherein a flexible cord is passed through and abutted on the lower surface, and the flexible cord and the terminal shaft are electrically and mechanically fixed. 3. A connecting terminal structure in a battery case according to claim 1, wherein a guide pin passing through both ends of a bush is formed to protrude from the terminal board, and a coil spring is inserted into the guide pin to press the bush. . 4 The terminal shaft is the lower surface of the shelf provided on the terminal holder, and the bush engages the claws formed on both sides of the bush with the terminal holder to restrict the vertical movable range, and when normally opened, the terminal shaft A connection terminal structure in a battery case according to claim 1, wherein the bush protrudes further and the tip of the terminal shaft is housed inside the bush.