CN102306998A

CN102306998A - Electromagnetic separation coupler for automobile fan

Info

Publication number: CN102306998A
Application number: CN201110096954A
Authority: CN
Inventors: 张春明; 仲维全
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-07
Filing date: 2011-04-07
Publication date: 2012-01-04

Abstract

The invention discloses an electromagnetic separation coupler for an automobile fan. A magnet fixing disc is fixedly connected with the inner end face of an annular track of a bearing (14). The outer end face of the magnet fixing disc is circumferentially provided with a plurality of through holes in which permanent magnets (10) are axially connected in a sliding way. The inner end faces of the permanent magnets are connected with the end face of a movable magnetic iron plate (9) on the inner end face of the magnet fixing disc in an attraction way, and the outer end faces of the permanent magnets are connected with a separation and coupling iron plate (11) fixedly connected to the circumference of the inner cavity end face of a fan fixing disc (16) in the attraction way. The separation and coupling iron plate forms a gap with and corresponds to the outer end face of the magnet fixing disc (12). When the separation coupler works, the complete separation or coupling of a plurality of axially sliding permanent magnets connected to the outer end face of the magnet fixing disc from or with the separation and coupling iron plate on the inner cavity end face of the fan fixing disc is realized by the power-on or power-off of an internal coil, mutual abrasion and damages are reduced, the service life of the product is remarkably prolonged, and the using cost of an automobile user is effectively decreased.

Description

A kind of automobile fan electromagnetism separates coupler

(1) technical field: the present invention relates to the automobile electromagnetic separation coupling device; Be specifically related to a kind of automobile fan electromagnetism and separate coupler.

(2) background technology: the automobile fan electromagnetism separates coupler in the prior art, normally is fixed with some block permanent magnets placing to distribute on the magnet fixed disc end face circumference of fan fixed disk inner chamber.To be the fixed interval (FI) corresponding for resonator end surface in the end face of said permanent magnet and the said fan fixed disk.During work; Utilize the some block permanent magnets that are connected on the said magnet fixed disc end face; The driving torque that the eddy current magnetism that the magnetic conduction iron plate that is connected in the resonator end surface in the said relatively fan fixed disk produces forms; The fan that is connected with on the drive fan fixed disk rotates, and automobile engine work water temperature is carried out radiating and cooling in good time.Because resonator end surface and magnet fixed disc end face are in manufacturing process in the described fan fixed disk, the corresponding end face of the described amphidisc center of relatively rotating exists bigger axial runout error.The end face of the corresponding joint of amphidisc in long-term work very easily causes mutual wearing and tearing to damage because separation or coupling are not thorough.Need repairing when changing when described fan fixed disk and/or magnet fixed disc component wear damage, maintenance producer dislikes dismounting and change associated components trouble usually, the automobile fan electromagnetism of integral body is separated coupler do and scrap processing and renew separately.So just reduce the useful life of product, increased the use cost of user vehicle significantly.

(3) summary of the invention: to the deficiency of above-mentioned prior art existence; The object of the present invention is to provide a kind of automobile fan electromagnetism to separate coupler; Be intended to reduce the mutual wearing and tearing of interior resonator end surface of fan fixed disk and magnet fixed disc end face corresponding, reach useful life of improving product and the use cost that reduces user vehicle with it.

For realizing above-mentioned purpose; The technical scheme that a kind of automobile fan electromagnetism of the present invention separates coupler is to realize like this; Mainly be rotatably connected with on the power transmission shaft of transmission device that magnet fixed disc joins through shell fragment and interior adhesive dish elasticity and fan fixed disk through bearing and the said power transmission shaft formation that is rotatedly connected; It is that the circular orbit inner face of said magnet fixed disc and said bearing is connected; On the circumference of the outer face of said magnet fixed disc, all endwisely slip in several through holes of distribution and be connected with permanent magnet; Movable magnetic conduction iron plate end face adhesive on the inner face of said permanent magnet and the said magnet fixed disc inner face is joined; The clutch iron plate end face adhesive that is connected on the interior resonator end surface circumference of the outer face of said permanent magnet and said fan fixed disk links to each other; It is corresponding that said clutch iron plate end face and the outer face of said magnet fixed disc are the gap.

The present invention is through taking said structure; Interior loop during work in the control electromagnetic core gets the electromagnetic field couples suction of electric generation; The permanent magnet that all endwisely slips and be connected with in several through holes on the said magnet fixed disc of the adhesive outer face; Do axial slip together with movable magnetic conduction iron plate, make the clutch iron plate end face that is connected with on the interior resonator end surface circumference of the relative fan fixed disk in outer face of said some permanent magnets isolate the gap.The driving torque that the eddy current magnetism that utilizes said some permanent magnets to be the relative clutch iron plate generation in gap forms, the fan that is connected with on the drive fan fixed disk is done slip velocity and is rotated, and realizes the radiating and cooling to the engine operation water temperature.After the interior loop outage of control in the electromagnetic core, the coupling suction that electromagnetic field produces disappears immediately, and adhesive is connected with the permanent magnet of movable magnetic conduction iron plate, through self suction axial slip again with fan fixed disk in the clutch iron plate end face adhesive that is connected with of resonator end surface link to each other.The end face separation or the coupling that have realized the corresponding joint of amphidisc are thorough.Reduced in manufacturing process, the mutual wearing and tearing that the amphidisc end face center that relatively rotates exists bigger axial runout error to be caused damage.Improve the useful life of product significantly, reduced the use cost of user vehicle effectively.

(4) description of drawings: Fig. 1 is the cutaway view of an embodiment of the present invention.

(5) embodiment: shown in Figure 1.This automobile fan electromagnetism separates coupler, mainly be rotatably connected with on the power transmission shaft 2 of transmission device that magnet fixed disc 12 joins through shell fragment 13 and interior adhesive dish 15 elasticity and fan fixed disk 16 through bearing 14 and the said power transmission shaft formation that is rotatedly connected; It is that the circular orbit inner face of said magnet fixed disc and said bearing 14 is connected; On the circumference of the outer face of said magnet fixed disc, all endwisely slip in several through holes of distribution and be connected with permanent magnet 10 (shown in Figure 1); Movable magnetic conduction iron plate 9 end face adhesives on the inner face of said permanent magnet and the said magnet fixed disc inner face are joined; The clutch iron plate 11 end face adhesives that are connected on the interior resonator end surface circumference of the outer face of said permanent magnet and said fan fixed disk 16 link to each other; Said clutch iron plate end face is 0.3 millimeter gap corresponding (shown in Figure 1) usually with the outer face of said magnet fixed disc 12.During work, adpting flange of the present invention 1 usually and the car engine body join.The belt pulley 3 that drives said transmission device through engine power output drives power transmission shafts 2 and rotates together with drive plate 17, rotates the electromagnetic core 4 that is connected on the power transmission shaft through bearing this moment and joins with fixture and do not rotate (shown in Figure 1).When the work water temperature of engine reaches setting value; Interior loop 6 in the temperature controller control electromagnetic core 4 gets the interior adhesive dish 15 of electric adhesive and engages with drive plate 17; Driving magnet fixed disc 12 rotation synchronously by drive plate when (shown in Figure 1); The electromagnetic field couples suction that interior loop 6 in the electromagnetic core produces; The some permanent magnets 10 that distribute on the adhesive magnet fixed disc 12 outer face circumference are with micro displacement; Together with movable magnetic conduction iron plate 9 axial slip 0.1 mm distance left, make described some permanent magnet outer faces isolate 0.1 mm clearance (with reference to shown in Figure 1) with clutch iron plate 11 end faces that are connected with on the resonator end surface circumference in the said fan fixed disk 16.The driving torque that the eddy current magnetism that utilizes said some permanent magnets 10 to be relative clutch iron plate 11 generations in gap forms; The fan that is connected with on the drive fan fixed disk 16 is done differential relative to magnet fixed disc 12 and is rotated, and has realized the radiating and cooling to the engine operation water temperature.When the engine operation water temperature continues to rise to the high temperature limit value; Exterior loop 5 in the temperature detect switch (TDS) control electromagnetic core 4 gets the outer adhesive dish 8 of electric adhesive and engages with drive plate 17, and outer adhesive dish carries out full speed through the outer shell fragment 7 direct fans that drive on the fan fixed disk 16 to the engine operation water temperature and rotates radiating and cooling (shown in Figure 1).When the engine operation water temperature is reduced to the high temperature set point, control inside and outside coil 6,5 through thermostat and cut off the power supply simultaneously.This moment, inside and outside adhesive dish 15,8 separated joint with drive plate 17 simultaneously under the elastic force effect of inside and outside shell fragment 13,7.Because interior loop 6 outages in the electromagnetic core; The coupling suction that electromagnetic field produces disappears immediately; Adhesive is connected with the permanent magnet 10 of movable magnetic conduction iron plate 9, through self suction to the right axial slip again with fan fixed disk 16 in the clutch iron plate 11 end face adhesives that are connected with of resonator end surfaces link to each other (shown in Figure 1).The end face separation or the coupling that have realized the corresponding joint of amphidisc are thorough.Reduced in manufacturing process, the mutual wearing and tearing that the amphidisc end face center that relatively rotates exists bigger axial runout error to be caused damage.Improve the useful life of product significantly, reduced the use cost of user vehicle effectively.

The above only is a preferred implementation of the present invention.Be noted that for the person of ordinary skill of the art; Under the prerequisite that does not break away from the principle of the invention; Need not other technical characterictic that the process creative work just can be associated; Can also make the modification and/or the improvement of some kinds of basic identical modes, realize essentially identical function and produce essentially identical effect.These variations should be considered as equivalent feature, all belong within the protection range of patent of the present invention.

Claims

1. an automobile fan electromagnetism separates coupler; Mainly be to be rotatably connected with magnet fixed disc (12) on the power transmission shaft (2) at transmission device to join, and fan fixed disk (16) is through bearing (14) and the said power transmission shaft formation that is rotatedly connected through shell fragment and interior adhesive dish (15) elasticity; It is characterized in that: the circular orbit inner face of said magnet fixed disc and said bearing (14) is connected; On the circumference of the outer face of said magnet fixed disc, all endwisely slip in several through holes of distribution and be connected with permanent magnet (10); Movable magnetic conduction iron plate (9) end face adhesive on the inner face of said permanent magnet and the said magnet fixed disc inner face is joined; Clutch iron plate (11) the end face adhesive that is connected on the interior resonator end surface circumference of the outer face of said permanent magnet and said fan fixed disk (16) links to each other; It is corresponding that said clutch iron plate end face and the outer face of said magnet fixed disc (12) are the gap.