CN217518882U - Fan with cooling device - Google Patents

Abstract

The utility model provides a fan, including wind-force portion and fixed part, the fixed part includes base and support, and wind-force portion installs on the support, and wind-force portion includes: the air inlet part comprises an air inlet cover, and an air inlet is formed in the air inlet cover; the air outlet part comprises a pressurizing piece and an air outlet cover connected to the radial outer side of the pressurizing piece, an air outlet is formed between the front end of the pressurizing piece and the front end of the air outlet cover, and the air outlet part and the air inlet part are matched in the front and back direction to form an accommodating part; a mixed flow fan which is accommodated in the accommodating part and is positioned at the rear side of the pressurizing piece, and the mixed flow fan rotates around the rotating shaft; the supercharger is accommodated in the accommodating part and is positioned on the radial outer side of the mixed flow fan, and the supercharger extends from the radial inner side of the air inlet cover to the radial inner side of the air outlet cover. Through set up booster, mixed flow fan and pressurization spare at the radial inboard of air inlet cover and air outlet cover for carry out the pressure boost to the wind that gets into from the air intake, increased the energy of the wind that blows out, promoted user experience.

Description

Fan with cooling device

Technical Field

The utility model relates to a fan technical field, concretely relates to fan of wind pressure increase.

Background

In the existing fan, an axial flow fan is usually adopted, and the axial flow fan is characterized in that the path of wind from the wind inlet to the wind outlet cannot deviate in the radial direction, the radial deviation is basically equivalent to straight-in and straight-out, and the wind enters the axial flow fan from the wind inlet end and then leaves the axial fan from the wind outlet end, so that the mode has small wind resistance and small wind loss. Moreover, because the axial flow fan is less in research and development, low in cost and mature in product development, generally, a person skilled in the art will default to the axial flow fan.

However, the axial flow fan has a low wind pressure and a short air supply distance, and when the axial flow fan is used, the distance between a user and the fan is required, and when the distance between the user and the fan is large, the fan reduces the blowing, cooling and heat dissipation functions of the user, so that the user requirements cannot be well met.

Disclosure of Invention

In view of this, the utility model provides a through setting up booster, mixed flow fan and the pressure piece in the radial inboard of air inlet cover and air-out cover for to the follow the wind that the air intake got into carries out the pressure boost, has increased the energy of the wind that blows off, has promoted user experience.

The utility model provides a fan, a serial communication port, including wind-force portion and fixed part, the fixed part includes base and support, wind-force portion install in on the support, wind-force portion includes: the air inlet part comprises an air inlet cover, and an air inlet is formed in the air inlet cover; the air outlet part comprises a pressurizing piece and an air outlet cover connected to the radial outer side of the pressurizing piece, an air outlet is formed between the front end of the pressurizing piece and the front end of the air outlet cover, and the air outlet part and the air inlet part are matched in the front and back direction to form a containing part; the mixed flow fan is accommodated in the accommodating part and is positioned at the rear side of the pressurizing piece, and the mixed flow fan rotates around a rotating shaft; the supercharger is accommodated in the accommodating part and positioned on the radial outer side of the mixed flow fan, and the supercharger extends from the radial inner side of the air inlet cover to the radial inner side of the air outlet cover.

Further, the ratio of the thickness of the pressurizing piece to the thickness of the air outlet cover ranges from 0.6 to 1.2; and/or the thickness of the pressure piece is 20-35mm, so that a safe space without damage after the slender foreign matters enter from the air outlet is formed.

Further, the air conditioner further comprises a front cover, the pressurizing part is provided with a negative pressure area with a forward opening, and the front cover is installed in the negative pressure area to reduce the volume of the negative pressure area, so that air outlet is uniform and comfortable.

Further, the mixed flow fan comprises a rotating seat and a plurality of first blades, the rotating seat comprises a wind guide surface which is radially enlarged from back to front, and the plurality of first blades are connected and equidistantly arranged on the wind guide surface; the pressurizing piece comprises a pressurizing seat and a plurality of second blades, the pressurizing seat comprises a pressurizing surface which is radially enlarged from back to front, the plurality of second blades are connected and are arranged on the pressurizing surface at equal intervals, and the plurality of second blades are connected with the air outlet cover; the booster includes a booster face that increases radially from the rear to the front toward the mixed flow fan.

Furthermore, the air guide surface and the pressurizing surface are arranged closely at intervals, and the interval between the air guide surface and the pressurizing surface is 1.8-2.2 mm; the radial length of the projection of the pressurizing surface in the radial direction is 44-48mm to form a larger blowing surface, and the distance between the air outlet and the mixed flow fan is increased in the radial direction to further form a safety space after the slender foreign matters enter from the air outlet.

Further, the air guide surface and the pressurizing surface form a pressurizing inclined surface which is increased in the radial direction integrally, and a pressurizing flow guide channel is formed among the pressurizing inclined surface, the pressurizing surface and the air outlet cover; at least part of the air guide surface is radially recessed to form a concave surface, the pressurizing surface is radially recessed from back to front to form a concave surface, and the pressurizing surface is radially protruded to form a convex surface.

Furthermore, the supercharging surface is protruded from back to front in a radial direction to form a convex surface, and then is sunken from back in a radial direction to form a concave surface, and the supercharging surface is smoothly connected with the inner wall surface of the air outlet cover, so that the wind generated by the mixed flow fan flows forwards smoothly.

Further, the front end of booster with it connects to go out the fan housing, the rear end of booster is unsettled, the booster with air inlet cover and part form the transition zone between the fan housing, the transition zone is used for inhaling the sound and falls and fall the noise and buffer memory wind.

Furthermore, the pressurizing piece protrudes backwards to form a convex pipe, and the rotating shaft penetrates through the mixed flow fan from the rear part and extends into the convex pipe so as to fix the mixed flow fan behind the pressurizing piece.

Further, the wind power part is rotatably installed on the bracket, the bracket comprises a handle formed on the upper side of the wind power part, and the wind power part is positioned inside a frame formed by the bracket and the base when viewed from the front to the back.

Compared with the prior art, the utility model discloses the fan has following beneficial effect: after entering the mixed flow fan from the air inlet end in the axial direction, the air obliquely leaves from the air outlet end, and the advantages of large air volume of the axial flow fan and large air pressure of the centrifugal fan are combined. Simultaneously, at the radial inboard of air inlet cover and air outlet cover, still be provided with booster and pressurization spare, further carry out the pressure boost to the wind that the air intake got into, increased the energy of the wind that blows out, promoted user experience.

Drawings

Fig. 1 is a perspective view of the fan of the present invention;

fig. 2 is an exploded perspective view of the fan of the present invention at one angle;

fig. 3 is an exploded perspective view of the fan according to another angle of the present invention;

fig. 4 is a sectional view of the fan of the present invention.

Detailed Description

For the purpose of better understanding the objects, structure, features and functions of the present invention, the fan 100 will be further described with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 to 4, in order to provide the fan 100 of the present invention, the fan 100 includes a wind power part 1 and a fixing part 2, the wind power part 1 is installed on the fixing part 2, and the fixing part 2 is used for fixing the wind power part 1 to the outside. The wind power part 1 comprises an air inlet part 11, an air outlet part 13 and a mixed flow fan 3. The air inlet part 11 comprises an air inlet cover 12 and a supercharger 5 at least partially positioned on the radial inner side of the air inlet cover 12, and an air inlet 121 is formed in the air inlet cover 12. The air-out portion 13 includes the pressurization piece 4 and connect in the air-out cover 14 of the pressurization piece 4 radial outside, the front end of pressurization piece 4 with form the air outlet 141 between the front end of air-out cover 14 is radial, air-out portion 13 with cooperate around the air inlet portion 11, and form holding portion 15 jointly. The mixed flow fan 3 is accommodated in the accommodating portion 15 and rotates around a rotating shaft 34. The air inlet 121 is communicated with the air outlet 141, and air enters the accommodating portion 15 from the air inlet 121 and then is blown out from the air outlet 141. The supercharger 5 is also accommodated in the accommodating portion 15 and located radially outside the mixed flow fan 3, and the supercharger 5 extends from the radially inner side of the air inlet hood 12 to the radially inner side of the air outlet hood 14.

As shown in fig. 1 to 3, the fixing portion 2 includes a base 21 and a bracket 22, the wind power portion 1 is rotatably mounted on the bracket 22, specifically, the left and right sides of the wind power portion 1 are connected to the bracket 22, and the wind power portion 1 is rotatable relative to two joints with the bracket 22. In this embodiment, the base 21 is located below the wind power portion 1, the lower end of the base 21 is a plane, so that the fan 100 is integrally erected on an external plane, a battery 7 is disposed in the base 21, a switch 6 and an interface 8 are exposed on the surface of the base 21, the battery 7 is used for supplying power, the switch 6 is used for starting, adjusting wind speed and closing, and the interface 8 is used for connecting an external power supply to charge the battery 7. Of course, the structure of the base 21 is not limited to this, and the positions of the battery 7 and the switch 6 are not limited to the base 21. The bracket 22 comprises a handle 221 formed on the upper side of the wind power part 1, and the wind power part 1 is positioned inside a frame formed by the bracket 22 and the base 21 when viewed from the front to the back. The support 22 has both supporting, fixing, and carrying functions by the handle 221 formed on the upper side of the wind power section 1.

As shown in fig. 2 to 4, the mixed flow fan 3 includes a rotating base 31 and a plurality of first blades 32, the rotating base 31 includes a wind guide surface 311 that increases radially from back to front, the wind guide surface 311 may increase radially as a whole or may increase partially radially, and the plurality of first blades 32 are connected to and equidistantly arranged on the wind guide surface 311. The rotary base 31 is substantially truncated cone-shaped, a radial sectional area of the rotary base 31 at the rear end is smaller than a radial sectional area of the rotary base at the front end, and the rotary base 31 is formed with a housing cavity 312 with a forward opening, so that the outer rotor brushless motor 33 can be easily placed in the housing cavity 312. The service life of the outer rotor brushless motor 33 can reach 1 ten thousand 5 hours, and electric sparks generated when the brush motor runs are not generated, so that the interference of the electric sparks on remote control radio equipment can be greatly reduced; the friction is greatly reduced when the brushless mode is operated, the operation is smooth, and the noise reduction effect is good.

As shown in fig. 2 to 4, the pressing member 4 includes a pressing base 41 and a plurality of second blades 42, the pressing base 41 includes a pressing surface 411 that increases radially from the back to the front, the plurality of second blades 42 are connected and equidistantly arranged on the pressing surface 411, and the plurality of second blades 42 are connected to the wind outlet cover 14. The pressurizing member 4 further comprises a front cover 43, the pressurizing seat 41 has a negative pressure region 412 with a forward opening, and the front cover 43 is installed on the negative pressure region 412 to reduce the volume of the negative pressure region 412, so that the air outlet is uniform and comfortable. The front cover 43 covers only a part of the central area of the negative pressure region 412, and the whole area of the negative pressure region 412 is recessed backward under the arrangement of the front cover 43, so that turbulence can be reduced, and noise can be reduced. Meanwhile, in other embodiments, the front cover 43 may also be an IP image object (not shown, the same applies below) for detachable arrangement, and the front cover 43 may be exposed or covered by at least a partially transparent material to enhance the user's interaction with the IP image object. By arranging the detachable and replaceable type, different cooperators are prevented from customizing different molds, one mold can be butted with a plurality of IP cooperators, and the production cost of the IP cooperators can be reduced by about 40%; the exposed IP image objects increase the number of users who directly touch the IP image objects, and the traditional use experience is changed. The front cover 43 may also be used to provide an aromatherapy component, or a component combining humidification and aromatherapy, or a component receiving a USB harness, or a mirror for an LED lamp, without limitation.

As shown in fig. 2 to 4, the mixed flow fan 3 and the pressurizing member 4 are axially disposed adjacent to each other at a distance, the rotary seat 31 and the pressurizing seat 41 are axially disposed adjacent to each other at a distance, and the air guide surface 311 and the pressurizing surface 411 are axially disposed adjacent to each other at a distance. The interval between the air guiding surface 311 and the pressing surface 411 is 1.8-2.2mm (mm, the same below) to block the interval between the mixed flow fan 3 and the pressing member 4, so that the air generated by the mixed flow fan 3 smoothly flows forward to the air outlet 141 through the pressing member 4. Of course, the value of the interval is not limited thereto. In this embodiment, the pressure member 4 protrudes rearward to form a protruding tube 44, and the rotating shaft 34 extends into the protruding tube 44 from the rear through the mixed flow fan 3 to fix the mixed flow fan 3 behind the pressure member 4. When the fan 100 is a large-sized fan 100 such as a desk fan 100 or a floor fan 100, the mixed-flow fan 3 is large and heavy as a whole, so that the rotating shaft 34 passes through the mixed-flow fan 3 from the rear and then extends into the protruding pipe 44, the stability between the mixed-flow fan 3 and the pressurizing member 4 is increased, and the mixed-flow fan 3 stably operates. Of course, the manner in which the mixed flow fan 3 is fixed to the rear side of the pressure member 4 is not limited thereto.

As shown in fig. 2 to 4, the pressure seat 41 radially increases from back to front, and the axial projection of the plurality of first blades 32 does not extend outward beyond the radial cross-sectional edge of the front end of the pressure seat 41, that is, the first blades 32 are not visible from the air outlet 141 when viewed from front to back, and the user does not see the rotation of the mixed flow fan 3, so that when the user is an infant or a child, the attention of the infant or the child is reduced, and the situation that the infant or the child wants to touch the mixed flow fan 3 is avoided. In some embodiments, the radial distance between the front end of the pressure seat 41 and the front end of the air outlet housing 14 is 4-6mm, the air inlet 121 comprises a plurality of circular holes, the radius of the circular holes is 1.05-1.45mm, the diameter of the infant is about 20-40mm, the diameter of the child is larger, the design of the small opening further avoids the possibility that the fingers of the infant or the child can extend into the small opening, and a safety aperture for preventing foreign matters from entering is formed in both the air inlet 121 and the air outlet 141.

Meanwhile, in some embodiments, the thickness of the pressure member 4 is 20-35mm, and a certain distance is provided between the air inlet 121 and the rotating mixed flow fan 3, so as to form a safe space for allowing the slender foreign matters to enter from the air outlet 141 without damage; the radial length of the projection of the pressurizing surface 411 in the radial direction is 44-48mm, and the distance between the air outlet 141 and the mixed flow fan 3 is increased in the radial direction, so as to further form a safe space which can allow long and thin foreign matters to enter from the air outlet 141 without damage. And the radial length of the projection of the pressurizing surface 411 in the radial direction is 44-48mm, so that a large blowing surface is formed, and the use experience of a user is improved. Of course, it is to be understood that the specific values are not so limited.

The ratio of the thickness of the pressure member 4 to the thickness of the wind outlet cover 14 is in the range of 0.6-1.2, and the ratio of the thickness of the pressure member 4 to the thickness of the mixed flow fan 3 is in the range of 0.46-0.86, so that after the airflow is subjected to high-pressure wind gathering through the first blades 32, the airflow is subjected to equivalent distance carding through the second blades 42, and the maximum used air volume constructed by the high-pressure air volume of the final airflow generated from the pressure member 4 and the external negative pressure air volume and the aggregated air supply distance of the maximum used air volume are ensured. It will be appreciated that the resultant airflow generated by the pressure member 4 is high in pressure, and can drive the negative pressure air around the outside of the casing, thereby further increasing the airflow. Of course, the above ratio range is not limited thereto.

The supercharger 5 includes a supercharging surface 51 that increases radially from the rear to the front toward the mixed flow fan 3. In this embodiment, the front end of the supercharger 5 is connected with the air outlet cover 14, the rear end of the supercharger 5 is suspended, the supercharger 5 is connected with the air inlet cover 12 and part of the air outlet cover 14 to form a transition area 52, the transition area 52 is used for absorbing sound, reducing noise and buffering air, and the transition area 52 belongs to a part of the accommodating part 15. The booster 5 connect in go out fan housing 14, and be located air inlet cover 12 and part go out fan housing 14's radial inboard, booster 5 has removed the effect that has the pressure boost, has similar sound insulating glass's effect in addition, plays the effect of making an uproar of falling. Of course, the front end of the supercharger 5 may also be connected to the air inlet cover 12, or connected to the joint position of the air inlet cover 12 and the air outlet cover 14. In some embodiments, the front end of the supercharger 5 is connected to the air outlet cover 14, or connected to the air inlet cover 12 and the air outlet cover 14, and the rear end of the supercharger 5 is connected to the air inlet cover 12, and the transition area 52 is used for absorbing sound and reducing noise.

The air guide surface 311 and the pressurizing surface 411 form a radially enlarged pressurizing inclined surface M integrally, and a pressurizing flow guide channel T is formed between the pressurizing inclined surface M, the pressurizing surface 51 and the air outlet housing 14. At least part of the air guide surface 311 is radially recessed to form a concave surface, the pressurizing surface 411 is radially recessed from back to front to form a concave surface, and is radially protruded from back to form a convex surface, so that the volume of the pressurizing flow guide channel T is increased to gather air quantity, and meanwhile, the air guide cannot be blown out through outward diffusion too much, but is blown out in parallel or inwards slightly. The pressurizing surface 51 radially protrudes from back to front to form a convex surface, and the back radially protrudes to form a concave surface, so that the air is pressurized, and meanwhile, the air is guided not to be diffused outwards and blown out. The supercharging surface 51 is smoothly connected with the inner wall surface of the air outlet cover 14, so that the wind generated by the mixed flow fan 3 smoothly flows forwards. Wind certainly air intake 121 gets into pressurization water conservancy diversion passageway T, process the two segmentation pressurizations on pressurization inclined plane M, the wind pressure increases and air supply distance increases the back, certainly air outlet 141 derives.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims (10)

1. The utility model provides a fan, its characterized in that includes wind-force portion and fixed part, the fixed part includes base and support, wind-force portion install in on the support, wind-force portion includes:

the air inlet part comprises an air inlet cover, and an air inlet is formed in the air inlet cover;

the air outlet part comprises a pressurizing piece and an air outlet cover connected to the radial outer side of the pressurizing piece, an air outlet is formed between the front end of the pressurizing piece and the front end of the air outlet cover, and the air outlet part and the air inlet part are matched in the front and back direction to form a containing part;

the mixed flow fan is accommodated in the accommodating part and is positioned at the rear side of the pressurizing piece, and the mixed flow fan rotates around a rotating shaft;

the supercharger is accommodated in the accommodating part and positioned on the radial outer side of the mixed flow fan, and the supercharger extends from the radial inner side of the air inlet cover to the radial inner side of the air outlet cover.

2. The fan of claim 1, wherein: the ratio range of the thickness of the pressurizing piece to the thickness of the air outlet cover is 0.6-1.2; and/or the thickness of the pressure piece is 20-35mm, so that a safe space without damage after the slender foreign matters enter from the air outlet is formed.

3. The fan of claim 1, wherein: the air conditioner further comprises a front cover, the pressurizing part is provided with a negative pressure area with a forward opening, and the front cover is installed in the negative pressure area to reduce the volume of the negative pressure area, so that air outlet is uniform and comfortable.

4. The fan of claim 1, wherein: the mixed flow fan comprises a rotating seat and a plurality of first blades, wherein the rotating seat comprises an air guide surface which is radially enlarged from back to front, and the first blades are connected and equidistantly arranged on the air guide surface; the pressurizing piece comprises a pressurizing seat and a plurality of second blades, the pressurizing seat comprises a pressurizing surface which is radially enlarged from back to front, the plurality of second blades are connected and are arranged on the pressurizing surface at equal intervals, and the plurality of second blades are connected with the air outlet cover; the booster includes a booster face that increases radially from the rear to the front toward the mixed flow fan.

5. The fan as claimed in claim 4, wherein: the air guide surface and the pressurizing surface are arranged closely at intervals, and the interval between the air guide surface and the pressurizing surface is 1.8-2.2 mm; the radial length of the projection of the pressurizing surface in the radial direction is 44-48mm to form a larger blowing surface, and the distance between the air outlet and the mixed flow fan is increased in the radial direction to further form a safety space after the slender foreign matters enter from the air outlet.

6. The fan of claim 4, wherein: the air guide surface and the pressurizing surface integrally form a pressurizing inclined surface with the radial enlargement, and a pressurizing flow guide channel is formed among the pressurizing inclined surface, the pressurizing surface and the air outlet cover; at least part of the air guide surface is radially sunken to form a concave surface, the pressurizing surface is radially sunken from back to front to form a concave surface, and the pressurizing surface is radially protruded to form a convex surface.

7. The fan of claim 4, wherein: the supercharging surface is protruded radially from back to front to form a convex surface, and then is sunken radially to form a concave surface, and the supercharging surface is smoothly connected with the inner wall surface of the air outlet cover, so that the wind generated by the mixed flow fan flows forwards smoothly.

8. The fan of claim 1, wherein: the front end of booster with it connects to go out the fan housing, the rear end of booster is unsettled, the booster with air inlet cover and part form the transition zone between the fan housing, the transition zone is used for inhaling the sound and falls and buffer memory wind.

9. The fan of claim 1, wherein: the pressurizing piece protrudes backwards to extend to form a convex pipe, and the rotating shaft penetrates through the mixed flow fan from the rear side to extend into the convex pipe so as to fix the mixed flow fan behind the pressurizing piece.

10. The fan of claim 1, wherein: the wind power part is rotatably arranged on the bracket, the bracket comprises a handle formed on the upper side of the wind power part, and the wind power part is positioned inside a frame formed by the bracket and the base when viewed from front to back.

Images