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Electromagnetic friction connecting apparatus

Imported: 24 Feb '17 | Published: 06 Jan '04

Akihiro Iwazaki, Rikiya Kunii, Kenji Honda

USPTO - Utility Patents

Abstract

The object of the present invention is to provide an electromagnetic friction connecting apparatus, which allows the easier operations associated with the installation of an exciting coil or a search coil in a core element. Input and output terminals having second horizontal parts extending in the vehicle inward direction and second vertical parts extending from the ends of the second horizontal parts into the radial outward direction are provided for the exciting coil and the search coil. Each end of the second vertical parts is situated radially inside a periphery surface of the exciting coil. Holes which allow the respective ends of the second vertical parts of the input and output terminals to face the outside are made on the core element and the housing. They are connected to the ends of the second vertical parts of the input and output terminals by inserting couplers into these holes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a sectional view showing the structure of the rear wheel differential unit of the four-wheel-drive vehicle based upon a front-engine-front-drive vehicle, to which the electromagnetic friction connecting apparatus according to the present invention is applied.

FIG. 2 is an enlarged section view showing the structure of the electromagnetic brake shown in FIG.

1.

FIG. 3 is a front view showing the core element of the electromagnetic brake according to the present embodiment.

FIG. 4A is a sectional view taken along the line IVA—IVA in FIG. 3 showing the core element and the exciting coil according to the present embodiment. FIG. 4B is a sectional view taken along the line IVB—IVB in FIG. 3 showing the search coil.

FIG. 5A is a front view showing the pressing element of the electromagnetic brake according to the present embodiment. FIG. 5B is a sectional view taken along the line VB—VB in FIG. 5A showing the electromagnetic brake.

FIG. 6 is a sectional view showing the coupler of the electromagnetic brake according to the present embodiment.

Claims

1. An electromagnetic friction connecting apparatus comprising:

2. An electromagnetic friction connecting apparatus according to claim 1 wherein said search coil is disposed so that a peripheral surface of said search coil is situated radially inside said first extension of said wiring terminal of said exciting coil, and said openings of said exciting coil and said search coil which are made on said core element and said housing are offset circumferentially.

3. An electromagnetic friction connecting apparatus according to claim 1 wherein said housing is filled with a lubricant partially at least, seal elements of leak protection for said lubricant are provided for each of said couplers and at least one of said connection openings for said exciting coil and said search coil is made in an upper half of said housing.

4. An electromagnetic friction connecting apparatus according to claim 2 wherein said housing is filled with a lubricant partially at least, seal elements of leak protection for said lubricant are provided for each of said couplers and at least one of said connection openings for said exciting coil and said search coil is made in an upper half of said housing.

5. An electromagnetic friction connecting apparatus according to claim 1 ,

6. An electromagnetic friction connecting apparatus according to claim 2 ,

7. An electromagnetic friction connecting apparatus according to claim 3 ,

8. An electromagnetic friction connecting apparatus according to claim 4,