CN2458734Y

CN2458734Y - Radiator with magnetic positioning fan set

Info

Publication number: CN2458734Y
Application number: CN 00268656
Authority: CN
Inventors: 谢新茂
Original assignee: XIEXI MOTOR CO Ltd
Current assignee: XIEXI MOTOR CO Ltd
Priority date: 2000-12-20
Filing date: 2000-12-20
Publication date: 2001-11-07
Anticipated expiration: 2010-12-20

Abstract

The utility model relates to a radiator structure with a magnetic positioning fan set. A magnetic induction sheet metal is arranged between a stator set of the radiator and a circuit board, the middle of the magnetic induction sheet metal is provided with a lantern ring part, and the circumference of the lantern ring part is extended with a symmetric corona part in which a hollow part is formed. The circumference of the corona part is an arched magnetic induction zone which is positioned at the lower side of a permanent magnet of the fan set. In this way, the mutual attraction of the magnetic induction zone and the permanent magnet causes the fan set to go down, and an axle bed of the fan set is abutted on a ball bearing to eliminate a clearance of a mandrel pivoted on a stator set axle sleeve. Thereby, when the fan set rotates, the float is avoided, the rotation of the fan set is smoother, and the service life of the radiator is prolonged.

Description

Radiator with magnetic location fan group

The utility model is a kind of radiator, relevant specifically a kind of radiator with magnetic location fan group.

Radiator is a kind of common radiator structure; it mainly can provide electronic component, electrical machine element or have in the machinery of heat energy generation; and can start the rotation of fan group and extract the heat that is wherein produced; help distribute heat and then reach the heat radiation cooling purpose; can protect electronics, motor or mechanical organ like this, to prolong its life-span and to avoid the impaired and influence running of Yin Gaowen.

Present heat spreader structures majority is carbon-free brush design, its structural form, can cooperate referring to Fig. 4 and Fig. 5, as shown in the figure, it is by fan group 70, stator pack 60, circuit board 65 and shell body 50 constitute, wherein, on the stator pack 60, following long-pending yoke sheet 62, folder is established coil 64 between 63, one axle sleeve 61 wears therebetween and is positioned on the circuit board 65, and plug in the base plate 51 that is consolidated in shell body 50, on, following long-

pending yoke sheet

62,63 peripheries then are convexly equipped with out several magnetic sheet bendings, on, following long-

pending yoke sheet

62,63 pairs of fashionable magnetic sheets are staggered and arrange, fan group 70 with fan blade wears by axle 75 set in its bottom axle bed 74 and is articulated in the axle sleeve 61, thereby the set permanent magnet 73 of fan group 70 inner peripherals is positioned at, following long-

pending yoke sheet

62,63 magnetic sheet periphery, after making coil 64 logical upward electric currents, be staggered magnetic sheet and can form magnetic pole, set hall sensor 651 can be responded to the magnetic pole of the pairing permanent magnet 73 of magnetic sheet on the circuit board 65, use the magnetic pole of continuous replacing magnetic sheet, and the 73 pairs of seasonable magnetic poles of permanent magnet in making magnetic sheet and rotating keep same magnetic, for example, S-S homopolarity or N-N homopolarity, and can reach the purpose of homopolarity mutual exclusion, constantly rotate with the permanent magnet 73 that forces stator pack 60 outer shroud peripheries, and the rotation of permanent magnet 73, the fan group 70 of shape such as one is rotated, but so that the fan blade priming air-flow of fan group 70 peripheries and reach the practical effect of heat radiation.

Its actual motion uses, can cooperate referring to Fig. 5, as shown in the figure, the set motor shell 72 of flabellum housing 71 inner edges of this fan group 70 refills establishes permanent magnet 73, and axle 75 is hubbed in the axle sleeve 61 of stator pack 60, promptly penetrate ball bearing set in the axle sleeve 61 611, in pad 612 and the self-lubricating plain besring 613, be held on axle 75 ends with clasp 751 again, therefore, in the process of coil 64 energisings and 70 rotations of fan group, the rotation of this fan group 70 can be subjected to the influence in clasp 751 and self-lubricating plain besring 613 gaps, and if clasp 751 is too big with the gap of self-lubricating plain besring 613, its axle 75 can be moving of floating up and down because of the gap when then fan group 70 was rotated, cause unsettled unsteady rotation, and produce bigger noise, and can't reach preferable equilbrium running effect; And if the too small even driving fit in gap after clasp 751 clampings, then axle 75 be pivoted and can be too urgent, and when rotated, then cause frictional resistance easily, and then consume rotary power and power.

The purpose of this utility model is to provide a kind of floating when avoiding the fan rotation, and makes the radiator of fan group even running.

For achieving the above object, the utility model provides a kind of heat spreader structures with fan group of magnetic location, it is by the fan group, stator pack and shell body constitute, the flabellum housing inner edge of fan group is provided with motor shell and permanent magnet, in the axle bed of bottom axle is set, stator pack comprises long-pending yoke sheet, following long-pending yoke sheet, and establish coil in folder wherein, and can wear one by axle sleeve, on the base plate of shell body circuit board is set, circuit board is positioned at stator pack element bottom, after axle sleeve wears stator pack, can pass the mesopore of circuit board and the end simultaneously so that stator pack is consolidated in the shell body, set axle penetrates in the axle sleeve in the axle bed of fan group, and in the axle end clasp is set and is pivoted, it is characterized in that: sense magnetic sheet metal is set between stator pack and circuit board, in the middle of the sense magnetic sheet metal is collar portion, the collar portion periphery extends the coronal of symmetrical expression, the coronal periphery is the sense magnetic region section of arc, the collar portion of sense magnetic sheet metal can wear for axle sleeve, and the sense magnetic region section of sense magnetic sheet metal is positioned at the permanent magnet downside of fan group, and the permanent magnet of fan group attracts each other with the sense magnetic region section of feeling the magnetic sheet metal and the fan group is descended and is resisted against on the ball bearing with the axle bed that gets the fan group.

Adopt such scheme of the present utility model, the permanent magnet by the fan group attracts each other with the sense magnetic region section of sense magnetic sheet metal, makes the fan group descend and axle bed can be resisted against on the ball bearing and can get rid of the gap that axle is hubbed at the stator pack axle sleeve; Therefore, floating of fan group when rotation can be avoided, and the rotation that makes fan group steady and smooth more, and the useful life of radiator can be prolonged effectively.

For enabling further to understand the purpose of this utility model, characteristics and advantage, be elaborated below in conjunction with the radiator of accompanying drawing to a preferred embodiment of the present utility model.

Fig. 1 is the radiator three-dimensional exploded view of a preferred embodiment of the present utility model;

Fig. 2 is the radiator assembled sectional view of a preferred embodiment of the present utility model;

Fig. 3 is the vertical view of the radiator combination of the utility model one preferred embodiment;

The three-dimensional exploded view of the radiator that Fig. 4 is traditional;

The assembled sectional view of the radiator that Fig. 5 is traditional.

At first, please cooperate referring to Fig. 1 and Fig. 2, as shown in the figure, radiator is by fan group 40, stator pack 30 and shell body 10 constitute, flabellum housing 41 inner edges of this fan group 40 are provided with motor shell 42 and permanent magnet 43, in the axle bed 44 of bottom axle 45 is set, stator pack 30 comprises long-pending yoke sheet 32, following long-pending yoke sheet 33, and establish coil 34 in folder wherein, and can wear one by axle sleeve 31, on the base plate 11 of shell body 10 circuit board 12 is set, circuit board 12 is positioned at stator pack 30 bottoms, after axle sleeve 31 passes stator pack 30, can pass the mesopore 121 and the base plate 11 of circuit board 12 simultaneously, and stator pack 30 is fixed in the shell body 10, set axle 45 in the axle bed 44 of fan group 40, be arranged in set ball bearing 311 in the axle sleeve 31, in pad 313 and the self-lubricating plain besring 312, and in axle 45 ends clasp 451 is set and is pivoted.Characteristics of the present utility model are: 12 of stator pack 30 and circuit boards are provided with sense magnetic sheet metal 20, sense magnetic sheet metal 20 middle parts form collar portion 21, collar portion 21 peripheries form the coronal 22 of symmetrical shape, form hollow-out parts 221 in the coronal 22, and in the sense magnetic region section 222 of coronal 22 peripheries formation arc, sense magnetic sheet metal 20 upsides and 30 of stator pack are provided with insulating trip 23, forming mesopore 231 in the middle of this insulating trip 23 can wear for axle sleeve 31, the external diameter of insulating trip 23 is less than sense magnetic region section 222 internal diameters of the arc of sense magnetic sheet metal 20, perforation 232 is set on the insulating trip 23, can supplying down, the grab 331 of long-pending yoke sheet 33 passes through, and clip is in the location hole 122 of circuit board 12, and set hall sensor 123 is positioned at the outside, zone of the coronal 22 contained lids of sense magnetic sheet metal 20 on the circuit board 12.

This sense magnetic sheet metal 20 with coronal 22 of symmetrical expression is arranged at 12 of stator pack 30 and circuit boards, the sense magnetic region section 222 of sense magnetic sheet metal 20 periphery arcs just in time is positioned at permanent magnet 43 downsides of fan group 40 inner edges, therefore, the sense magnetic region section 222 of sense magnetic sheet metal 36 can form sucking action with permanent magnet 43, make the flabellum housing 41 of fan group 40 to be attracted decline because of magnetic attraction, and can be resisted against on the ball bearing 311 by axle bed 44, gap when design can be got rid of axle 45 and is pivoted by this, it can more stably be rotated, so can overcome the shortcoming of traditional structure, more smooth and easy when reaching rotation, and the minimizing power loss, and then reach the ideal effect that increases the service life.

By the above-mentioned detailed description that design feature, compound mode and operation are used, can know and find out the utility model design advantage:

This have the radiator of magnetic positioning fan group because sense magnetic gold is set between the stator pack of radiator and circuit board Belonging to sheet, is collar portion in the middle of the sense magnetic sheet metal, and the collar portion periphery extends the coronal of symmetrical expression, shape in the coronal Become hollow-out parts, the coronal periphery is the sense magnetic region section of arc, sense magnetic region section be positioned at the fan group the permanent magnet downside and Can attract each other, sense magnetic sheet metal is fixedly arranged between stator pack and circuit board, and therefore, sense magnetic sheet metal is with permanent The magnetic attraction effect of magnet, the flabellum housing that axle is established descends, and makes the axle bed of fan group be resisted against the ball axle Hold, be hubbed at the gap of axle sleeve to eliminate axle, so that the fan group can more stablely rotate smoothly, and energy Reduce power attenuation, and reach the excellent effect that increases the service life.

Claims

1. one kind has the radiator that magnetic is located the fan group, it is by the fan group, stator pack and shell body constitute, the flabellum housing inner edge of fan group is provided with motor shell and permanent magnet, in the axle bed of bottom axle is set, stator pack comprises long-pending yoke sheet, following long-pending yoke sheet, and establish coil in folder wherein, and can wear one by axle sleeve, on the base plate of shell body circuit board is set, circuit board is positioned at stator pack element bottom, after axle sleeve wears stator pack, can pass the mesopore of circuit board and the end simultaneously so that stator pack is consolidated in the shell body, axle set in the axle bed of fan group penetrates in the axle sleeve, and in the axle end clasp is set and is pivoted, and it is characterized in that:

Sense magnetic sheet metal is set between stator pack and circuit board, in the middle of the sense magnetic sheet metal is collar portion, the collar portion periphery extends the coronal of symmetrical expression, the coronal periphery is the sense magnetic region section of arc, the collar portion of sense magnetic sheet metal can wear for axle sleeve, and the sense magnetic region section of sense magnetic sheet metal is positioned at the permanent magnet downside of fan group, and the permanent magnet of fan group attracts each other with the sense magnetic region section of feeling the magnetic sheet metal and the fan group is descended, so that the axle bed of fan group is resisted against on the ball bearing.

2. the radiator with magnetic location fan group as claimed in claim 1 is characterized in that, between sense magnetic sheet metal and stator pack insulating trip is set, and the external diameter of insulating trip is less than the internal diameter of the sense magnetic region section of sense magnetic sheet metal.

3. the radiator with magnetic location fan group as claimed in claim 1 is characterized in that, the symmetrical expression of sense magnetic sheet metal coronal in form hollow-out parts.