WARNING DEVICE FOR AUTOMOBILE ALTERNATOR REPLACEMENT
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Accused Products
Abstract
Provided is a warning device for automobile alternator replacement which warns a driver of the replacement timing of an automobile alternator in advance. A conducting sensor that surrounds a conductor with an insulator is embedded into a brush so that the conducting sensor can be electrically conducted before the brush reaches its wear limit. A push switch is installed between the brush and a brush holder so that the push switch can be turned on before the brush reaches its wear limit. The conducting sensor or the push switch is connected to a warning unit so that the warning unit can be operated when the conducting sensor is electrically conducted or when the push switch is turned on. Thereby, the warning device can warn the driver to replace the alternator before the alternator becomes inoperable due to the wear of the brush.
45 Citations
19 Claims
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1-9. -9. (canceled)
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10. A warning device for an automobile alternator having a shaft on which at least one slip ring is installed with at least one brush installed in a brush holder, comprising:
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a wear limit line setting a critical operating condition of the alternator; at least one conducting sensor installed in the brush and including a conductor installed so that a leading end thereof is located below the wear limit line at a predetermined depth and an insulator case of a cylindrical shape which insulates the conductor; and a warning unit connected to the conducting sensor, the warning unit including a battery in circuit with the conductor, and configured to generate a warning signal when the conductor of the conducting sensor comes in contact with the slip ring due to wear of the brush. - View Dependent Claims (11, 12, 13, 17)
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14. A warning device for an automobile alternator replacement having a shaft on which at least one slip ring is installed, with at least one brush installed in a brush holder, comprising:
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the brush having a wear limit line setting a critical operating condition of the alternator; at least one case installed on the brush, the case including an elastic body in an upper portion thereof and a movable member pushing the brush by the aid of the elastic body; at least one push switch closeable by contact with a head of the movable member, and installed in the case so that an initial setting distance from an initial position of the head to a position of the head at position where the push switch is contacted and turned on by the head is set so as to be smaller than a length from a leading end of the brush to the wear limit line of the brush by a predetermined amount; a ground wire connected to one end of the push switch; and a warning unit connected to the push switch at one end thereof, the warning unit including a battery in circuit with the conductor, and configured to generate a warning signal when the head of the movable member pushes and turns on the push switch due to wear of the brush. - View Dependent Claims (15, 16, 18, 19)
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Specification