JPS622919Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bicycle generator, and particularly relates to an improvement in the output terminal structure thereof.

Conventionally, this type of bicycle generator, as shown in FIGS. 1 and 2, includes a roller 1' that rotates in contact with the tire, and a rotor 2' that is composed of a magnet that rotates as the roller 1' rotates. (not shown) and a stator 4' that generates an electromotive force by the rotation of the rotor. 5' is a lower case that closes the lower end opening of the case body 2', and the open end of the case body 2' is folded inward. Lower case 5' by bending etc.
was fixed. 6' is the protruding piece 6 for caulking.
A' is the first terminal cup, and the protruding piece 6a' is disposed through the lower case 5', and the terminal plate 7' and the lug terminal 8' are disposed in an overlapping manner on the lower case 5'. The protruding piece 6a' was caulked to fix the lower case 5', the terminal plate 7', and the lug terminal 8' together. Further, a spring 9' and one end of a second terminal cup 10' are contained within the first terminal cup 6', and the second terminal cup 10' is disposed so as to be movable in the upward and downward directions. At the same time, a lead wire 12' was soldered to the lug terminal 8' for electrical connection.

However, according to the structure of the bicycle generator as described above, there are many parts that make up the output terminal section.
In addition, there is a caulking operation for fixing the lower case 5', the terminal plate 7', the lug terminal 8', and the first terminal cup 6' together, and for electrically connecting the lead wire 12' and the lug terminal 8'. This required complicated work such as soldering, resulting in very poor productivity. Also, when the second terminal cup 10' is pushed and the cord (not shown) is inserted into the through holes 6b' and 10a' formed in the first and second terminal cups, the second terminal cup 10' The first terminal cup 6' was caught, and the second terminal cup 10' could not be moved smoothly in the upward and downward directions.

In order to eliminate the above-mentioned defects, the present invention provides a spring holder plate between the lower surface of the protrusion of the iron core constituting the stator and the inner wall of the resin lower case, and a lead on the lower surface of the spring holder plate. By arranging the lead wire, arranging one end of the spring and the terminal plate in the spring holding part formed on the lower surface of the spring holder plate, and electrically connecting the lead wire, spring, and terminal plate, the bicycle The purpose of this invention is to reduce the number of parts constituting the output terminal section of the generator, and to eliminate caulking and soldering operations, thereby improving the productivity of bicycle generators.

The present invention will now be described with reference to the drawings showing embodiments thereof.

1 is a roller that rotates in contact with the tire; 2 is a case body that incorporates a stator 4 that generates an electromotive force by the rotation of a rotor 3 made of a magnet that rotates with the rotation of the roller 1; and 5 is a case body that closes the opening at the lower end of the case body 2. The resin lower case is held by bending the open end of the case body 2 inward. The stator 4 includes a power generation coil wound around an iron core 6;
It consists of a winding frame 8 arranged above and below the generating coil 7. 5a is a bulge formed on the lower surface of the resin lower case 5, and the bulge 5a has a long hole 9 extending upwardly and downwardly and a through hole 10 intersecting the long hole 9 laterally. Form. 11 is a spring holder plate interposed between the lower surface of the protruding part 6a of the iron core 6 constituting the stator 4 and the locking part 5b of the inner wall of the resin lower case 5, and made of an insulator such as synthetic resin; The upper surface of the spring holder plate 11 has an insertion hole 6b formed in the bulge 6a of the iron core 6.
A protrusion 11a for press-fitting and fixing is formed on the lower surface opposite to the surface on which the protrusion 11a is formed. immanent,
In addition, a plurality of spring holding portions 11c are formed so that the approximately T-shaped terminal plate 14 can move upward and downward. The spring holder plate 11 is attached to the lower surface of the stator 4 by press-fitting the projection 11a into an insertion hole 6b formed in the bulge of the iron core 6. In addition, a spring 13 and a bulging portion 14 of a substantially T-shaped terminal plate 14 are provided in the spring holding portion 11c.
a is disposed, and the bulging portion 14a is connected to the resin lower case 5.
The sliding portion 14b of the terminal plate 14 is inserted into the elongated hole 9 by the urging force of the spring 13, and the sliding portion 14b has a portion that resists the urging force. By pressing the terminal plate 14 into the resin lower case 5, the through hole 1 of the bulge portion 5a is opened.
It has a through hole 14c communicating with 0. moreover,
A flange 11d is formed at the tip of the projection 11a to prevent the spring holder plate 11 from coming off from the insertion hole 6b, and a claw 11e is formed at the lower end of the rotary holding part 11c to prevent the spring 13 from falling. At the same time, one end of the generating coil 7 is grounded to the case body 2, and the other end is a lead wire arranged on the lower surface of the spring holder plate 11.
The lead wire 12 is electrically connected to a terminal plate 14 via a spring 13. Reference numeral 15 denotes a mounting bracket for attaching the bicycle generator to the bicycle frame.

The present invention having the above configuration has a lead wire 1.
After passing through the spring holding part 11c of the spring holder plate 11 and wrapping and fixing it around the fixed protrusion 11b, the protrusion 11a of the spring holder plate 11 is inserted into the insertion hole 6 formed in the bulging part 6a of the iron core 6.
Spring holder plate 1 by press-fitting into b.
1 is attached to the stator 4, the lead wire 12, the spring 13 and the terminal plate 14 are arranged in the spring holding part 11c of the spring holder plate 11,
The lead wire 12 electrically connects the terminal plate 14 via a spring 13. After that, the terminal plate 1
The lower case 5 is disposed at the lower end opening of the case body 2 such that the sliding portion 14b of the resin lower case 5 is disposed in the long hole 9 of the resin lower case 5, and the open end of the case body 2 is folded inward. Since the output terminal structure is bent and held, the output terminal portion of the bicycle generator can be assembled by simple operations such as insertion and press-fitting.

As mentioned above, the output terminal structure of the present invention is press-fitted and fixed into the insertion hole formed in the bulge between the lower surface of the bulge of the iron core constituting the stator and the locking part of the lower case. A spring holder plate is provided, which has a protrusion for winding and fixing the lead wire, a fixing protrusion for wrapping and fixing the lead wire, and a spring holding part for accommodating the spring and the bulging part of the terminal plate.
In addition, since the output terminal structure is such that the sliding part of the terminal plate is disposed in the elongated hole formed in the lower case body, the terminal plate, lower case and The effect of improving the productivity of bicycle generators is that it eliminates complicated work such as caulking work to secure the terminal cup together and soldering work to electrically connect the lead wire and lug terminal. In addition, the number of parts constituting the output terminal section can be significantly reduced, and the manufacturing cost can be reduced, which is an extremely excellent practical effect.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway cross-sectional view of a conventional bicycle generator, Figure 2 is an enlarged cross-sectional view showing the output terminal of a conventional bicycle generator, and Figures 3 to 5 are a cross-sectional view of a conventional bicycle generator. 3 is a partially cutaway sectional view of the bicycle generator, FIG. 4 is an exploded view of the output terminal portion, and FIG. 5 is an exploded perspective view of the output terminal portion. 1...Roller, 3...Rotor, 4...Stator, 6...Iron core, 6b...Insertion hole, 11...Spring holder plate, 11a...Protrusion, 11c
... Spring holding part, 12 ... Lead wire, 13
... Spring, 14 ... Terminal board.

Claims (1)

[Scope of utility model registration request] A roller that rotates in contact with a bicycle tire,
In a bicycle generator comprising a rotor made of a magnet that rotates with the rotation of the roller, and a stator that generates an electromotive force due to the rotation of the rotor, an insertion hole is formed in the lower surface of the iron core constituting the stator; A protrusion to be inserted into the insertion hole is formed on the upper surface of the spring holder plate, and the lower surface opposite to the surface on which the protrusion is formed contains the lead wire and spring from the power generation coil, and the terminal plate is placed on the upper surface. A spring holding part that is movable in a downward direction is formed, and a lead wire,
A bicycle power generator characterized in that a spring and a terminal plate are sequentially arranged from the bottom side of a spring holder plate, and the lead wire and the upper end of the spring and the lower end of the spring and the upper part of the terminal plate are electrically connected. Machine.