CN202176555U

CN202176555U - Fan

Info

Publication number: CN202176555U
Application number: CN2011202651282U
Authority: CN
Inventors: 李耀强
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-25
Filing date: 2011-07-25
Publication date: 2012-03-28
Anticipated expiration: 2021-07-25

Abstract

A fan consists of a base, an air flow injection device and an air boosting device. The air flow injection device is above the base, taking a hollow annular structure. The air boosting deice is arranged in the center of a first air flow channel, and a cross gas pipe is communicated with an air passage of the air flow injection device. The structure reduces the distance from a turbocharger from every air outlet on the one hand to increase air pressure, and keeps the air pressure at all the air outlets basically consistent. The air boosting device adopts a modular structure. An intake cover and a dustproof cover are easy to dismantle and clean, a filter screen is easy to replace, and after the intake cover is dismantled, the fan is easy to clean so that all main parts of the fan can keep clean for long time.

Description

A kind of fan

Technical field

The utility model relates to a kind of fan, belongs to the optimisation technique of fan.

Background technique

Existing fan is through the rotation of driven by motor blade; Through blade air pressurized is quickened to blow to then the user; Advantage is to bring the sensation of blowing to the user; But there are following 4 deficiencies: the one, the velocity of blade of rotation is very high, runs into because of carelessness and can damage, so most fan adopts outer cover to surround blade to reduce danger; The 2nd, blade and outer cover clean difficulty; The 3rd, also can produce throat sound in the blade rotary course, bring interference to the user; The 4th, because air-flow changes when passing blade surface, the wind of producing by boasting is inhomogeneous, and the user can feel a burst of high wind that similar pulse is such.

Application number be 200810177843.3 be to disclose a kind of fan in 200810177844.8 the patent document with application number; Form by pedestal and the annular row gas port that is installed on the pedestal; Be provided with inner passage and the relief opening of reception in the annular row gas port from the air-flow in the pedestal; The fan air outside is deflated the air-flow suction that mouth ejects, and the air-flow that blows to the user is increased.The advantage of this design is not have exposed blade; Solve leaf wind and be difficult to clean and have the deficiency of potential safety hazard, and reduced and fallen sound, had stronger visual impact; The speed uniform airflow that ejects through relief opening; Utilize Coanda effect to change the flow direction of relief opening air-out well, and drive the fan air outside and flow, make the user experience comparatively stable blowing effect to the user.But because blower fan is placed in the pedestal, the air channel of wind through annular blows out from the relief opening of annular, and the air channel each several part is different with the distance of pedestal, so also difference just of the blast that the different air-out point of annular row gas port blows out; Intake grill and blower fan are arranged on the pedestal, and service time one is long, and intake grill, blower fan, air channel all can adhere to a large amount of dust, and cleaning process is more more difficult than conventional fan.

Therefore, need to seek a kind of fan that can make annular row gas port each point blast basically identical and clean easily.

Summary of the invention

The purpose of the utility model provides a kind of fan, the wind blast basically identical that annular row gas port each point is blown out, and the fan that cleans easily.

The technological scheme of the utility model is: a kind of fan is made up of pedestal 1, air flow jetting device 2 and Air pressurizer 3, and described air flow jetting device 2 is positioned at the top of pedestal 1, is the loop configuration of hollow; The middle part of described air flow jetting device is first air-flow path 21; On air flow jetting device 2, be provided with second air-flow path 22 of annular and the relief opening 23 of annular; Described Air pressurizer 3 is placed in the central position of first air-flow path 21, through air flue 25 UNICOMs of pneumatic tube 38 with air flow jetting device 2.

Described Air pressurizer 3 middle parts are housing 32, and housing 32 connects with airscoop shroud 31 towards an end opening of suction port, and the other end seals, and connect with dust-proof cover 33.

Be provided with turbocharger 35 and motor 36 in the described housing 32, the edge of the suction port end of the air guide sleeve of turbocharger 35 connects with the edge of the opening end of housing 32.

Be provided with filter screen 34 in the described airscoop shroud 31.

Described airscoop shroud 31 connects with housing 32 through bayonet socket or silk mouth with dust-proof cover 33, and storage box 37 is settled in the space between housing 32 and dust-proof cover 33.

Described pneumatic tube 38 is the axle center with Air pressurizer 3, and the space of first air-flow path 21 is divided into 3 to 6 parts.

The inner space UNICOM of described pneumatic tube 38 and housing 32.

In described storage box 37, place aromatizing agent, culicifuge or negative ion generator.

Described airscoop shroud 31 is provided with inlet hole with dust-proof cover 33.

The beneficial effect of the utility model is:

1, Air pressurizer is placed in the central position of air flow jetting device, the distance that has shortened each air-out point of turbocharger arrival on the one hand makes blast bigger, makes the blast basically identical of each air-out point on the other hand.

2, Air pressurizer adopts modular construction, and airscoop shroud and dust-proof cover all are easy to unpick and wash, and filter screen is changed easily, and airscoop shroud is pulled down rear fan and also cleaned easily, makes each critical piece of fan can keep clean for a long time.

3, in airscoop shroud, be provided with filter screen, help filtered air; In dust-proof cover, settle storage box, can put aromatizing agent and beautify the living environment, also can place negative ion or plasma generator, further purify air.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.

Fig. 1 is the main TV structure schematic representation of the utility model;

Fig. 2 is that partial sectional view is looked on the left side of the utility model;

Fig. 3 is the partial enlarged drawing of Fig. 2;

Among the figure 1, pedestal, 11, connecting base, 12, the connecting base platform, 13, wave motor, 14, regulating block; 15, set screw, 16, strut, 17, base, 2, the air flow jetting device, 21, first air-flow path; 22, second air-flow path, 23, relief opening, 24, demarcation strip, 25, air flue; 26, connecting tendon, 27, puff prot, 28, outer wall, 29, inwall.3, Air pressurizer, 31, airscoop shroud, 32, housing, 33, dust-proof cover, 34, filter screen, 35, turbocharger, 36, motor, 37, storage box, 38, pneumatic tube.

Embodiment

Like Fig. 1, Fig. 2, shown in Figure 3, a kind of fan is made up of pedestal 1, air flow jetting device 2 and Air pressurizer 3, and described air flow jetting device 2 is positioned at the top of pedestal 1, is the loop configuration of hollow; The middle part of described air flow jetting device is first air-flow path 21; On air flow jetting device 2, be provided with second air-flow path 22 of annular and the relief opening 23 of annular; Described Air pressurizer 3 is placed in the central position of first air-flow path 21, through air flue 25 UNICOMs of pneumatic tube 38 with air flow jetting device 2.The air flue 25 that air arrives the air flow jetting device 2 through pneumatic tube 38 from Air pressurizer 3; Make the distance of each several part and Air pressurizer 3 of air flue 25 all similar, therefore, air pressure is just more approaching; Approaching from the stream pressure of relief opening ejection, sensation is just more comfortable.

Be provided with turbocharger 35 and motor 36 in the described housing 32, the edge of the suction port end of the air guide sleeve of turbocharger 35 connects with the edge of the opening end of housing 32.Through the air guide sleeve of turbocharger 35, the inner space of housing 32 and the inner space of airscoop shroud to be separated, all must could get into the inner space of housing 32 through after turbocharger 35 superchargings from the airscoop shroud inhaled air.

Be provided with filter screen 34 in the described airscoop shroud 31.Inhaled air all will purify through filter screen 34 earlier, is inhaled into turbocharger 35 again, after supercharging, blows into pneumatic tube 38, is sent to air channel 25 again, blows out through relief opening 23.

Described airscoop shroud 31 connects with housing 32 through bayonet socket or silk mouth with dust-proof cover 33, and storage box 37 is settled in the space between housing 32 and dust-proof cover 33.Use a period of time, can pull down airscoop shroud 31 at an easy rate and clean, change filter screen 34, blow to the user with the air that prevents to be stained with dust and cause harmful effects such as sensitivity with dust-proof cover 33.

The inner space UNICOM of described pneumatic tube 38 and housing 32.

In described storage box, place aromatizing agent, culicifuge or negative ion generator.According to user's hobby, can in storage box, place aromatizing agent, make the wind band that blows out the light fragrance of a flower; If mosquito is many, can place culicifuge, wind blows to each corner to mosquito-repellent incense, and repelling effect is better; Can also in storage box, settle negative ion generator or plasma generator, every now and then air carried out sterilization, play the effect of fresh air; If just fitted up, can also in storage box, place ozonizer, indoor harmful gas is carried out decomposition-reduction.

The intake grill of second air-flow path 22 is positioned at the outer wall of air flow jetting device 2, and exhaust outlet is positioned at the inwall of air flow jetting device 2.Make the outer air of air flow jetting device 2 outer walls, can pass through second air-flow path 22, import in first air-flow path 21.

Described second air-flow path 22 is separated through demarcation strip 24 and air flue 25, and described demarcation strip 24 is connected with ring jet mouth 27 through connecting tendon 26.

Said air flue 25 is the air-flow paths that are positioned at air flow jetting device 2 inside, and being linked in sequence by outer wall 28, demarcation strip 24 and inwall 29 forms.Therefore, taking under the situation in equal space, the air flue 25 of the utility model is than the airway constriction of other no blade fans, so air pressure is bigger, jet power is stronger.

One end of said outer wall 28 is connected with demarcation strip 24, and the other end is crooked and wrap up the end of inwall 29 to the direction of inwall 29.One end of said inwall 29 is connected with demarcation strip 24; The other end curves inwardly, and curved section is thickeied end gradually and is water droplet shape, that is to say; The end of outer wall 29 is the circular arc bending towards the direction of a side direction outer wall 28 of air flue 25; High-pressure air in the air flue 25 can be flowed out swimmingly, through relief opening 23 ejections along the inboard camber line of inwall 29.

The gap is left in the inboard of the end of described inwall 29 and outer wall 28, forms the relief opening 23 of the annular that is communicated with air flue 25.

Through hole and air passageways 14 UNICOMs of pedestal 1 of said air flue 25 through being positioned at air flow jetting device 2 belows.

The air-flow that the utility model blows to the user comprises three parts, and first portion is the main air flow from 23 ejections of ring jet mouth; Second portion is a main air flow when flowing, and attracts the air-flow at fan rear to get into first air-flow path 21; Third part is that the main air flow high speed flow is when crossing the exhaust outlet of second air-flow path 22; Can produce venturi-effect; Cross second air-flow path 22 to the air communication of fan side and entrainment in entering first air-flow path 21, above-mentioned three strands of air-flows are merged into one more powerful air-flow.

During work, the motor 36 in the Air pressurizer 3 drives turbocharger 35 work, and air is sucked from airscoop shroud 31, after filter screen 34 filters, gets into turbocharger 35, is sent to air flue 25 through pneumatic tube 38 after the supercharging, again through relief opening 23 ejections.Because inwall 29 curves inwardly towards an end of annular row gas port 23, curved section is more thickeied and is water droplet shape, makes the side line bar smoothness towards air flue, and like this, the air-flows in the air flue 25 will flow toward annular row gas port 23 swimmingly, from 23 ejections of annular row gas port.Because inwall 29 curves inwardly, therefore, the surface of the inwall 29 around annular row gas port 23 forms the coanda surface; Make the air-flow of relief opening 23 ejections change the flow direction; Surface along inwall 29 blows to the user, and entrainments the air that is positioned at air flow jetting device 2 rears and blow to the user through first air-flow path 21, simultaneously; Because the exhaust outlet of second air-flow path 22 is positioned at the inwall of air flow jetting device 2; When the air flow stream that ejects from the annular row gas port is crossed this position,, can produce low pressure area at the exhaust outlet of second air-flow path 22 according to venturi-effect; Attract the outer air of air flow jetting device 2 outer walls to flow into second air-flow path 22, import first air-flow path 21 again and blow to the user.

Therefore, the fan of the utility model because the air pressure of the relief opening of diverse location ejection is approaching, makes the air that blows to the user more even, and because Air pressurizer 3 is nearer from relief opening, air pressure is also just correspondingly bigger,

Entrainment get into first air-flow path 21 air-flow also just than application number be 200810177843.3 with application number be that disclosed a kind of fan is big in 200810177844.8 the patent document; Therefore; The fan of the utility model; Under comparable size, power, can produce more powerful air-flow, just the bigger effect of wind is better.

The foregoing description only is to be used for the purposes of interpretation the utility model; And be not to be the restriction to the utility model, those skilled in the art are in the essential scope of the utility model; Make various variations or alternative, also should belong to the protection category of the utility model.

Claims

1. a fan is made up of pedestal (1), air flow jetting device (2) and Air pressurizer (3), and described air flow jetting device (2) is positioned at the top of pedestal (1), is the loop configuration of hollow; The middle part of described air flow jetting device is first air-flow path (21); On air flow jetting device (2), be provided with second air-flow path (22) of annular and the relief opening (23) of annular; It is characterized in that: described Air pressurizer (3) is placed in the central position of first air-flow path (21), through air flue (25) UNICOM of pneumatic tube (38) with air flow jetting device (2).

2. a kind of fan according to claim 1 is characterized in that: described Air pressurizer (3) middle part is housing (32), and housing (32) connects with airscoop shroud (31) towards an end opening of suction port, and the other end seals, and connects with dust-proof cover (33).

3. a kind of fan according to claim 2 is characterized in that: be provided with turbocharger (35) and motor (36) in the described housing (32), the edge of the suction port end of the air guide sleeve of turbocharger (35) connects with the edge of the opening end of housing (32).

4. a kind of fan according to claim 2 is characterized in that: be provided with filter screen (34) in the described airscoop shroud (31).

5. a kind of fan according to claim 2 is characterized in that: described airscoop shroud (31) and dust-proof cover (33) connect with housing (32) through bayonet socket or silk mouth, and storage box (37) is settled in the space between housing (32) and dust-proof cover (33).

6. a kind of fan according to claim 1 is characterized in that: described pneumatic tube (38) is the axle center with Air pressurizer (3), and the space of first air-flow path (21) is divided into 3 to 6 parts.

7. a kind of fan according to claim 2 is characterized in that: the inner space UNICOM of described pneumatic tube (38) and housing (32).

8. a kind of fan according to claim 5 is characterized in that: in described storage box (37), place aromatizing agent, culicifuge or negative ion generator.

9. a kind of fan according to claim 2 is characterized in that: described airscoop shroud (31) and dust-proof cover (33) are provided with inlet hole.