CN2280165Y

CN2280165Y - Super thin electric fan able to selecting blowing driection

Info

Publication number: CN2280165Y
Application number: CN 96240273
Authority: CN
Inventors: 洪陈富英
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-06
Filing date: 1996-11-06
Publication date: 1998-04-29
Anticipated expiration: 2006-11-06

Abstract

The utility model relates to a super thin electric fan being able to select blowing direction. A base is provided with containing space for an eddy path and an air outlet, wherein, the containing space can combine a coil holder and a fan wheel. A base plate is provided with fastening holes by which a cover plate combines with the base plate using inverted hooks in a fastening way, the base is provided with a conductive wire groove through which a power-supply wire passes, the cover plate is provided with posts by which the power-supply wire can be slightly pressed, and the fan wheel is provided with a containing chamber for containing the coil holder. The blades of the fan wheel extend out of middle part in an oblique angle, and the surfaces of the blades, which face the coil holder, are slightly concave cambered surfaces.

Description

The super thin fan of orientable air-supply

The utility model relates to a kind of super thin fan of orientable air-supply.

No. 95205315.2 " sink of very thin computer central processing unit (CPU) " patent case of application China before the claimant, it mainly comprises substrate, heat-dissipating fan and radiating fin, with set seat board of substrate and heat-dissipating fan combination, substrate itself is provided with the radiation hole that circulates each other for two side air and supplies the positioning hole of positioning element in conjunction with radiating fin; This radiating fin is that metal material is made, and it is provided with several straight sheets, is provided with conduit between straight sheet, and the straight sheet of two sides is higher, and the middle straight sheet is lower, and the vertical parallax of straight sheet forms the heat-dissipating fan revolution space.

What this patent case was disclosed mainly is with the axial flow flabellum substrate to be dispelled the heat, because the air quantity of axial flow fan is big, blast is little, cause formed air quantity when sending, to scatter, cause air quantity can't reach efficiently radiates heat, and this kind axial flow fan is subjected to installation position and height restriction when installing, so its radiating effect is not good.

The purpose of this utility model is to provide a kind of super thin fan of orientable air-supply, and it can form ultra-thin, extra small design, and makes the air quantity of sending form directed transmission according to the needs that use.

Another purpose of the present utility model is to provide a kind of super thin fan of orientable air-supply, and its cover plate can form assembling fast, and can reduce reject ratio and cost of production by easily in conjunction with assembling.

A purpose more of the present utility model is to provide a kind of super thin fan of orientable air-supply, and the power line of its coil base is subjected to good arrangement, makes power line avoid drawing or suffering the hook that revolves of fan leaf to pull and suffer to decrease ring because of pulling of external force.

Another purpose of the present utility model is to provide a kind of super thin fan of orientable air-supply, and it can make the more concentrated and enhancing of air quantity.

The purpose of this utility model is to realize like this, a kind of super thin fan of orientable air-supply promptly is provided, it is provided with the exhaust outlet that the holding space and that forms the vortex passage forms breach by pedestal, described holding space is provided with the base for the central siphon winding of coil base, coil base is planted with the axle of axis hole and impeller, be provided with in the coil base and produce magnetic field to drive the wire coil of impeller rotation, impeller is provided with and can drives the blade that wind is sent by exhaust outlet, described substrate is by a cover plate combination, and cover plate is provided with the intake grill less than the impeller diameter; Described pedestal is provided with several snapping holes, and the relative position of described cover plate is provided with barb, and described barb is buckled in described snapping hole, and described cover plate combines with described pedestal; The blade of described impeller is the thin slice by formed several the oblique protrusions of impeller waist, and blade slightly becomes recessed cambered surface towards the face of coil base, and impeller is provided with the medium altitude chamber that holds coil base.

The advantage of the utility model device is that volume is little, and wiring is rationally, and is easy to assembly, rapid, orientable concentrated air-supply, and air quantity is big.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:

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

Fig. 2 is a combination top view of the present utility model;

Fig. 3 is a 3-3 line sectional drawing among Fig. 2;

Fig. 4 is a 4-4 line sectional drawing among Fig. 2.

See also shown in Figure 1, preferred embodiment of the present utility model, it is made up of members such as pedestal 1, cover plate 2, coil base 3, impellers 4.

This pedestal 1 is provided with the exhaust outlet 12 that a recessed holding space 11 and forms breach, this holding space 11 forms the vortex passage, and form a recessed counterbore 13 again by this holding space 11, this counterbore 13 can be for circuit board 33 heavy the putting that are incorporated into coil base 3 bottom surfaces, and by forming a base 14 that protrudes in the middle of the counterbore 13, this base 14 can stretch into fixing for the central siphon 35 of coil base 3, and make 1 of circuit board 33 and pedestal form appropriate gap, can make circuit board 33 that preferable radiating effect is arranged first, moreover the power line 32 of circuit board 33 is pulled smoothly, can do not suppressed, establish a metallic channel that communicates 15 by counterbore 13 again, this metallic channel 15 be positioned at the vortex passage to open top the most suitable, metallic channel 15 terminals are run through by pedestal 1 body, and semiclosed by half wall 16 formation, the height of half wall 16 makes 32 one-tenth turnovers of power line around drawing more less than this pedestal 1 thickness; Pedestal 1 itself is provided with several snapping holes 17, and this snapping hole 17 can snap in for cover plate 2 set barbs 21, cover plate 2 is fastened with it form positioning combination; Pedestal 1 is provided with several holes 18 in addition, and this hole 18 can be fixed on the appropriate location with whole super thin fan for positioning element.

This cover plate 2 is provided with several barbs 21, make cover plate 2 can be snapped in the snapping hole 17 of pedestal 1 easily by barb 21, the two can be fastened by existing various snapping modes, make cover plate 2 cover on the top surface of substrate 1 securely, cover plate 2 is established a circular intake opening 22, can introduce a large amount of cooling airs by intake opening 22; Cover plate 2 is provided with a post 23 that protrudes downwards again, and this post 23 is positioned at metallic channel 15 tops, can compress the power line 32 that is passed through by metallic channel 15 by post 23, makes power line 32 fixing by constraining of appropriateness, and the outlet of sealing power line 32 simultaneously.

This coil base 3 is combined with circuit board 33, and establish central siphon 35 by the bottom and can overlap the base 14 that inserts in pedestal 1, and make 1 of circuit board 33 and pedestal form appropriate gap, coil base 3 passes through with the axle 41 of an axis hole 31 for impeller 4, wire coil 34 on the coil base 3 can be in order to produce magnetic field, and to drive impeller 4 rotations, wire coil 34 is introduced power supply by

power line

32,32 of power lines cause pedestal 1 outside by metallic channel 15, and are constrained by post 23.

This impeller 4 is set in the axis hole 31 of coil base 3 by axle 41, and fasten and to deviate from for C shape clasp 44 with annular groove 43, impeller 4 is formed with the thin slice flabellum 42 of several oblique protrusions by waist, flabellum 42 is established limit and top with connecing of impeller 4, the bottom plane becomes gradient setting, become 45 degree angles the most suitable approximately, flabellum 42 slightly becomes recessed cambered surface towards the face of coil, the internal diameter of impeller 4 forms the room 45 (as shown in Figure 3) of hollow, this room 45 can hold coil base 3, make the two that minimum thickness be arranged, and the magnetic field induction that impeller 4 can be generated by wire coil 34 rotates, and by the rotation of impeller 4, can make flabellum 42 propellant vortexs by 12 one-tenth directed air-supplies of exhaust outlet.

See also Fig. 2, combination situations of the present utility model shown in 3, after it is bonded to pedestal 1 by the coil base 3 that is combined with circuit board 33 respectively with impeller 4, be fastened on the snapping hole 17 of pedestal 1 easily with barb 21 by cover plate 2, and cover plate 2 set posts 23 can become the oppressive power line 32 (as shown in Figure 4) of suitable pressure, make the turnover of 32 one-tenth of power lines around half wall 16 more, so, power line 32 is flattened in the metallic channel 15, the problem that does not have buoyance lift and pulled by fan leaf drawing and power line is pullled from external force, also can avoid contact directly to be pulled pulls, and also with the outlet of the post 23 sealing power lines 32 of cover plate 2, make the holding space of vortex passage that single exhaust outlet only be arranged, and do not have any breach, so that air quantity is more concentrated and enhancing.

The utility model forms less thickness and diameter, and the air-flow that is generated can form single sending by exhaust outlet 12, to reach the purpose that orientation blows, it can be assembled easily, and form ultra-thin, extra small design, and this cover plate does not have the problem that is difficult for fixing or forming breakage yet when covering, and this power line is made appropriate arrangements, and has to be difficult for pullling the problem that comes off.

Claims

1, a kind of super thin fan of orientable air-supply, it is provided with the exhaust outlet that the holding space and that forms the vortex passage forms breach by pedestal, described holding space is provided with the base for the central siphon winding of coil base, coil base is planted with the axle of axis hole and impeller, be provided with in the coil base and produce magnetic field to drive the wire coil of impeller rotation, impeller is provided with and can drives the blade that wind is sent by exhaust outlet, and described substrate is by a cover plate combination, and cover plate is provided with the intake grill less than the impeller diameter; It is characterized in that described pedestal is provided with several snapping holes, the relative position of described cover plate is provided with barb, and described barb is buckled in described snapping hole, and described cover plate combines with described pedestal; The blade of described impeller is the thin slice by formed several the oblique protrusions of impeller waist, and blade slightly becomes recessed cambered surface towards the face of coil base, and impeller is provided with the medium altitude chamber that holds coil base.

According to the super thin fan of the described orientable air-supply of claim 1, it is characterized in that 2, described blade becomes 45 degree angles with the edge fit of impeller with impeller top, bottom surface.

3, according to the super thin fan of the described orientable air-supply of claim 1, it is characterized in that, the holding space of described pedestal is provided with recessed counterbore, counterbore is provided with the metallic channel that communicates, the metallic channel terminal is run through by substrate, and formed semiclosedly by half wall, half wall height is less than the thickness of pedestal, power line become turnover around half wall more.

4, according to the super thin fan of the described orientable air-supply of claim 3, it is characterized in that, described metallic channel be positioned at pedestal the vortex holding space open top.

According to the super thin fan of the described orientable air-supply of claim 3, it is characterized in that 5, described cover plate bottom is provided with the post of downward protrusion, post is positioned at the top of metallic channel, and described post presses in the power line that passes through, and the outlet of sealing power line.

According to the super thin fan of the described orientable air-supply of claim 1, it is characterized in that 6, the blade of described impeller is the axial flow fan leaf.