Abrégé

A drive plate of an electromagnetic-fan clutch comprises: a body of the drive plate provided with magnetic-insulation air holes, connection ribs, and magnetic conductive layers. The magnetic-insulation air holes and the magnetic conductive layers are arranged alternatively along a radial direction of the body of the drive plate. A friction-increasing groove is opened on the magnetic conductive layer. The thickness of the magnetic insulation air holes and the thickness of the connection ribs are less than the thickness of the magnetic conductive layers. Six connection ribs are distributed uniformly between the magnetic conductive layers, and the connection ribs at two sides of the magnetic conductive layer are distributed along the radial direction of the body of the drive plate at an interval of 30 degrees. A drive plate through hole is opened in the body of the drive plate, and accommodation walls are disposed on the magnetic conductive layers.

Classes IPC  ?

• B21D 53/26 - Fabrication d'autres objets particuliers de roues ou de pièces similaires
• B21D 22/14 - Repoussage des pièces de révolution par rotation
• B21D 53/88 - Fabrication d'autres objets particuliers d'autres parties de véhicules, p. ex. capots, garde-boue
• B23B 1/00 - Méthodes de tournage ou méthodes de travail impliquant l'utilisation de toursUtilisation d'équipements auxiliaires en relation avec ces méthodes
• F16D 27/14 - Éléments constitutifs
• F16D 27/112 - Embrayages actionnés magnétiquementLeur commande ou leurs circuits électriques avec un électro-aimant ne tournant pas avec un organe de l'embrayage, c.-à-d. sans bagues collectrices avec des organes d'embrayage mobiles selon l'axe avec des surfaces de friction plates, p. ex. des disques
• F16D 27/00 - Embrayages actionnés magnétiquementLeur commande ou leurs circuits électriques

Abrégé

Provided are an electromagnetic driving device that is resistant to failure, highly practicable, safe and reliable and of a simple structure, and methods for manufacturing and controlling the electromagnetic driving device. The present invention aims to provide an electromagnetic driving device able to operate and serve the function of driving even if a power supply system of an electromagnetic clutch malfunctions or a sudden power cut occurs, avoiding the series of adverse effects brought about by the failure of the electromagnetic clutch. The electromagnetic driving device comprises a driving disc (102; 202; 302; 402; 502; 602), and also a first driving device (106; 206; 306; 406; 506; 606), a second driving device (107; 207; 307; 407; 507; 607) and a first electrical control device (103, 104; 203, 204; 303, 304a; 403, 404; 503, 504; 603, 604). When the first electrical control device (103, 104; 203, 204; 303, 304a; 403, 404; 503, 504; 603, 604) is energized, the first electrical control device (103, 104; 203, 204; 303, 304a; 403, 404; 503, 504; 603, 604) drives the first driving device (106; 206; 306; 406; 506; 606) such that the second driving device (107; 207; 307; 407; 507; 607) is disengaged from the driving disc (102; 202; 302; 402; 502; 602). When the first electrical control device (103, 104; 203, 204; 303, 304a; 403, 404; 503, 504; 603, 604) is denergized, the first electrical control device (103, 104; 203, 204; 303, 304a; 403, 404; 503, 504; 603, 604) drives the first driving device (106; 206; 306; 406; 506; 606) such that the second driving device (107; 207; 307; 407; 507; 607) is engaged with the driving disc (102; 202; 302; 402; 502; 602).

Classes IPC  ?

• F16D 43/18 - Embrayages automatiques à commande interne actionnés entièrement mécaniquement commandés par la vitesse angulaire avec masses centrifuges actionnant directement les organes d'embrayage dans une direction qui a au moins une composante radialeEmbrayages automatiques à commande interne actionnés entièrement mécaniquement commandés par la vitesse angulaire avec masses centrifuges constituant elles-mêmes les organes d'embrayage les organes d'embrayages étant à friction

Abrégé

A drive plate of an electromagnetic-fan clutch. A body of the drive plate is provided with magnetic-insulation air holes (103, 103a, 103b), connection ribs (104, 104a, 104b), and magnetic conductive layers. The magnetic-insulation air holes (103, 103a, 103b) and the magnetic conductive layers are arranged alternatively along a radial direction of the body of the drive plate. A friction-increasing groove (105) is opened on the magnetic conductive layer. The thickness of the magnetic-insulation air holes (103, 103a, 103b) and the thickness of the connection ribs (104, 104a, 104b) are less than the thickness of the magnetic conductive layers. Six connection ribs (104, 104a, 104b) are distributed uniformly between the magnetic conductive layers, and the connection ribs (104, 104a, 104b) at two sides of the magnetic conductive layer are distributed along the radial direction of the body of the drive plate at an interval of 30 degrees. A drive plate through hole (101) is opened in the body of the drive plate, and accommodation walls (107, 107a) are disposed on the magnetic conductive layers. The drive plate is made of an SPHE steel plate or SPHD steel plate, implements magnetic insulation effect of a solid magnetic insulation layer by using the magnetic-insulation air holes, reduces the weight of the plate body, and improves the transmission efficiency. The disposition of the connection ribs and the grooves on end surfaces satisfies the rigidity of the plate body while ensuring the friction effect of the end faces as friction surfaces. In addition, also disclosed are a method and mould for manufacturing the drive plate of the electromagnetic-fan clutch.

Classes IPC  ?

• F01P 7/12 - Commande du débit de l'agent de refroidissement l'agent de refroidissement étant de "l'air de refroidissement" en agissant sur la section de la veine d'air circulant dans les échangeurs de chaleur "liquide vers air" par commande thermostatique
• F16D 27/14 - Éléments constitutifs
• B21D 22/14 - Repoussage des pièces de révolution par rotation

Abrégé

Disclosed is a flexible connection device which comprises a fan fixing disk (521) and a magnet fixing disk (522), with permanent magnets (255) uniformly distributed on the outer circumference surface of the magnet fixing disk; soft magnets (104) are uniformly provided in the circumference surface of an inner cavity of the disk body of the fan fixing disk in a manner corresponding to the permanent magnets. The magnet fixing disk drives the fan fixing disk to rotate, and the direction of the attractive force from the magnetic field points from the outer circumference surface of the magnet fixing disk to the centre of the disk body of the magnet fixing disk, which thereby causes radial forces acting on respective transmission bearings to counterbalance each other, and achieves a normal rolling state for the cylinder rollers or balls arranged between the inner races and the outer races of the transmission bearings in the disk bodies, so that the problem that the transmission bearings leak lubricating oil/grease due to single side eccentric wear of the cylinder rollers or the balls can be avoided. At the same time, a manufacturing method for the flexible connection device and a vehicle electromagnetic fan clutch using the flexible connection device are provided.

Classes IPC  ?

• F01P 7/12 - Commande du débit de l'agent de refroidissement l'agent de refroidissement étant de "l'air de refroidissement" en agissant sur la section de la veine d'air circulant dans les échangeurs de chaleur "liquide vers air" par commande thermostatique
• F16D 27/14 - Éléments constitutifs
• B22D 17/00 - Coulée sous pression ou moulage par injection, c.-à-d. moulage en introduisant le métal dans le moule sous haute pression

Abrégé

A magnet fixing tray of electromagnetic clutch mainly comprises: radiation fins (1), radiating venting holes (2) and second radiating fins (13). The tray body can be cooled by cyclone air flow produced by radiation fins (1) rotating with tray body passing through the radiation venting holes (2), and it is avoided that the heat is conducted to each driving bearing, lubricating grease is diluted by the heat of high temperature and overflows, and thus the driving bearings are prematurely worn and damaged. A method for manufacturing the magnet fixing tray of electromagnetic clutch by compression casting molding and a electromagnetic clutch having this magnet fixing tray are also provided.

Classes IPC  ?

• F16D 27/14 - Éléments constitutifs