JP2000182685A - Terminal structure of electric apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric appliance terminal structure capable of preventing contamination or rusting of the contact surface of a contact terminal by removing dust, rust, etc., from the contact surface through rotating the terminal when it is connected, capable of eliminating poor workmanship in contact of each terminal, and of keeping electric connections through ensuring contact of each terminal. SOLUTION: The terminal 2 of one electric appliance is connected with the terminal 1 of another electric appliance so that the electric continuity condition is generated, and the terminal 1 is equipped with a rotating mechanism 3 to rotate it with a push applied when the terminal is put in contact, and a restituting mechanism 4 is provided to restitute this terminal to the initial state when the terminals 1 and 2 in connected condition are released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal structure of electric equipment such as a charging terminal of a charger.

[0002]

2. Description of the Related Art The terminal structure of a conventional electric device is, for example, as follows.
As shown in FIG. 4, the charging terminals 106 provided opposite to each other.
And the charging terminal 110 is configured to come into contact with each other due to the weight of the portable device 102. And the spring plate 107
This contact state is maintained by the urging force of the portable device 102.
And the electric jack 109 of the charger 101 are electrically connected so that the built-in battery of the portable device 102 can be charged. However, in this case, since the charging terminal 106 and the charging terminal 110 are in metal contact, if the surface of the terminal becomes dirty or rusted, a poor connection occurs, and the electrical connection required for charging cannot be maintained. There was a problem that the battery could not be charged.

[0003] In order to solve this problem, there is a charging terminal structure of a charging device described in Japanese Patent Application Laid-Open No. 7-283852. This is, as shown in FIGS. 5A and 5B, the charging terminal exposure windows 220 and 223 of the portable wireless device.
The first rotary charging terminal 221 which is rotatably provided so as to be in contact with the outside via the charging terminal and the charging terminal exposure window 22 of the charging device
And a rotatable second rotary charging terminal 224 provided so as to be opposed to and contact with the first rotary charging terminal 221 via 0 and 223. When the first rotating charging terminal 221 and the second rotating charging terminal 224 come into contact with each other, the rotating charging terminals 221 and 224 rotate so that the contact points do not concentrate on one point, and a new terminal surface is formed. The contact is made to prevent a contact failure.

However, even in this case, the surfaces of the rotary charging terminals 221 and 224 may become dirty or rusted. When the dirty or rusted terminal surfaces come into contact with each other, poor contact occurs and charging is required. There is a problem that an electrical connection may not be possible.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and rotates the terminal when the terminal is connected to remove dirt and rust from the contact surface so that the contact surface of the contacting terminal is removed. The terminal structure of electrical equipment that can prevent dirt and rust, eliminate poor contact of each terminal, ensure contact of each terminal, and maintain electrical connection It is intended to provide.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a terminal of one electric device is connected to a terminal of the other electric device so as to be in an energized state. In the terminal structure of the electric equipment, a rotation mechanism is provided for rotating one of the terminals on one side or both terminals by pressing when the terminal is connected, and when the connection state of each terminal is released, the terminal is returned to its original state. A return mechanism is provided for returning to the state.

According to a second aspect of the present invention, the rotating mechanism includes a groove formed in the rod-like portion of the terminal and a groove inserted into a part of the groove, and the terminal is pressed by a pressing force when the terminal is connected. And an insertion fixing piece for rotating along the groove. The invention according to claim 3 is characterized in that the return mechanism is constituted by an urging spring.

According to a fourth aspect of the present invention, the urging spring is formed on a back surface of the terminal and a lower edge portion of a through hole provided in the main body of the electric device and into which a rod portion of the terminal is inserted. The spring is interposed between the spring member and the inward flange portion. The invention according to claim 5 is characterized in that the electric device comprises a charger, and the terminal is a charging terminal.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a terminal structure of an electric device according to the present invention. FIG. 1 is a cross-sectional view showing a state at the time of terminal connection in a terminal structure of an electric device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a state at the time of completion of terminal connection in a terminal structure of the electric device of the embodiment. FIG. 3 is a cross-sectional view showing a state in which connection of terminals in the terminal structure of the electric device according to the embodiment is released.

As shown in FIGS. 1, 2, and 3, the terminal structure of the electric device according to the present embodiment connects the terminals 1 and 2 by pressing the terminal 2 on the other side against the terminal 1 on the one side. In addition, a rotation mechanism 3 for rotating one terminal 1 by pressing force is provided, and when the connection state of the terminals 1 and 2 is released, the one terminal 1 returns to the original state. There is provided a return mechanism 4 for performing the operation. The above-mentioned rotating mechanism 3 has a screw-shaped groove 3a formed in the rod-shaped portion 1a of the terminal 1 on one side, and is inserted into a part of the groove 3a. An insertion fixing piece 3b for rotating the terminal 1 on one side along the groove 3a by pressing force.

The above-mentioned return mechanism 4 is constituted by an urging spring, and this urging spring is connected to the terminal 1 on one side.
Between the back surface of the head 1a and the inward flange 5b formed in the lower edge portion of the through hole 5a provided in the electric device body 5 and into which the rod-shaped portion 1a of the terminal 1 on one side is inserted. And a spring 4a interposed therebetween. In addition, the lower part of the rod-shaped portion 1a of the terminal 1 on one side is supported by the support member 6 so as to be rotatable and vertically movable.

In this embodiment, the electric device comprises a charger and the terminals 1 and 2 are charging terminals. The operation of the terminal structure of the electric device according to the present embodiment will be described. As shown in FIG. 1, when the other terminal 2 is pressed against the one terminal 1 and connected to the rod 1 a of the one terminal 1. Since the insertion fixing piece 3b is inserted into the screw-shaped groove 3a of the formed rotation mechanism 3, the terminal 1 on one side is connected to the screw-shaped groove 3a.
As shown in FIG. 2, while rotating along the line a, it descends while rotating in a direction of immersing in the through hole 5a in the electric device body 5 against the urging force of the return mechanism 4 composed of the spring 4a. I do. At this time, when the terminal 1 on one side rotates, the connection surface between the terminal 1 on one side and the terminal 2 on the other side is rubbed, and dirt, rust, etc. attached to these connection surfaces are removed. As a result, the terminals 1 and 2 are securely brought into contact with each other, and no contact failure occurs.

Further, as shown in FIG.
When the terminal 1 is removed, the terminal 1 on one side rises while rotating counterclockwise along the screw-shaped groove 3a by the urging force of the return mechanism 4 composed of the spring 4a, and returns to the original position shown in FIG. As described above, when the terminal 1 on one side is connected to the terminal 2 on the other side, the terminal 1 on one side rotates while being pressed by the terminal 2 on the other side.
The contact surfaces are rubbed, dirt and rust attached to these contact surfaces are removed, and no poor contact occurs.
Good electrical contact between both terminals 1 and 2 is always maintained.

In this embodiment, the description has been given of the case where the electric device is a charger and the terminals 1 and 2 are charging terminals. However, the present invention is not limited to this, and it is needless to say that the present invention can be applied to the terminals of other electric devices. It is. Further, in the present embodiment, the case where only one terminal 2 rotates at the time of contact is described. However, the present invention is not limited to this, and both the one terminal and the other terminal rotate at the time of contact. It may be.

[0015]

As described above, according to the first aspect of the present invention, when one terminal is connected to the other terminal, one terminal or one terminal is rotated by the rotating mechanism. And the other terminal is rotated, so that the contact surface between the one terminal and the other terminal is rubbed, and the dirt and rust attached to the contact surface of these terminals are removed. Contact failure of the terminal can be eliminated, contact of each terminal can be ensured, and electrical connection can be maintained.

Further, when the connection state of each terminal is released, the terminal is returned to the original state by the return mechanism. Therefore, when the terminal is not connected, the terminal is accurately returned to the normal state before the connection. Can be done. According to the second aspect of the present invention, since the rotating mechanism is constituted by the groove formed in the rod portion of the terminal and the insertion fixing piece inserted into the groove, the structure is simple, and When the terminals are connected, the terminals can be reliably rotated by the pressing force.

According to the third aspect of the present invention, since the return mechanism for returning the terminal to the original state is constituted by the urging spring, the structure is simple and the terminal is returned to the original state. The spring can be reliably returned by the biasing spring.
According to the fourth aspect of the present invention, the biasing spring is a spring interposed between the back surface of the terminal and the inward flange formed at the lower edge portion of the through hole in the electric device body. Therefore, the structure is simple, and when the connection state of each terminal is released, the terminal can be reliably returned to the original state by the urging force of the spring.

According to the fifth aspect of the present invention, when the electric device comprises a charger and the terminal is a charging terminal, the charging terminal on one side and the charging terminal on the other side are reliably connected as described above. Since the connection is made by contact, the charging can be reliably performed without causing a contact failure.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state when a terminal is connected in a terminal structure of an electric device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a state when terminal connection is completed in the terminal structure of the electric device according to the embodiment.

FIG. 3 is a cross-sectional view illustrating a state in which connection of terminals in the terminal structure of the electric device according to the embodiment is released.

FIG. 4 is a cross-sectional view showing a state before connection of terminals of a first conventional filling terminal structure.

5A and 5B show a second conventional charging terminal structure, in which FIG. 5A is a cross-sectional view showing a state before terminal connection, and FIG. 5B is a cross-sectional view showing a state at the time of terminal connection.

[Explanation of symbols]

 Reference Signs List 1 terminal on one side 2 terminal on the other side 3 rotation mechanism 3a groove 3b insertion fixing piece 4 return mechanism 4a spring (biasing spring) 5 electric equipment main body 5a through hole 5b inward flange

Claims (5)

[Claims] 1. A terminal structure of an electric device in which a terminal of an electric device on one side is connected to a terminal of an electric device on the other side so as to be in an energized state. And a return mechanism for returning the terminal to its original state when the connection state of each terminal is released. 2. The rotation mechanism according to claim 1, wherein the rotation mechanism is inserted into a part of the groove formed in the rod portion of the terminal, and rotates the terminal along the groove by a pressing force when the terminal is connected. 2. The terminal structure for an electric device according to claim 1, wherein said terminal structure comprises an insertion fixing piece. 3. The terminal structure for an electric device according to claim 1, wherein the return mechanism is constituted by an urging spring. 4. An urging spring formed between an underside of the terminal and an inward flange formed in a lower edge portion of a through hole provided in an electric device main body and into which a rod portion of the terminal is inserted. 4. The terminal structure for an electric device according to claim 3, wherein the terminal structure is a spring interposed therebetween. 5. The electric device according to claim 1, wherein the electric device comprises a charger, and the terminal is a charging terminal.
The terminal structure of an electric device according to any one of the above.