CN214036211U

CN214036211U - Reasonable-layout fan

Info

Publication number: CN214036211U
Application number: CN202120031089.3U
Authority: CN
Inventors: 时沈祥; 林圣全; 丁云斌; 陈玉龙
Original assignee: Zhejiang Youbang Integrated Ceiling Co Ltd
Current assignee: Zhejiang Youbang Integrated Ceiling Co Ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-08-24
Anticipated expiration: 2031-01-05

Abstract

The utility model relates to a rationally distributed fan. The air outlet channel of the existing fan is connected with the volute through a connecting pipeline, and the wind resistance is large. The utility model discloses a casing, be equipped with spiral case, air-out passageway and inlet air channel in the casing, be equipped with the fan in the spiral case, the pivoted fan obtains the air supply and forms the outer air current of arranging along the air-out passageway through inlet air channel, the axis of air-out passageway with the spiral case periphery each other is the tangential setting, and when the fan rotated and ordered about the air current and flowed along spiral case circumference, the air current can be followed air-out passageway axis direction and flowed and arrange outward. Set up the air-out passageway on the tangential direction of spiral case, can turn to the windage when effectively reducing the interior air current of spiral case and flowing into the air-out passageway through reducing the air current, can also effectively utilize the width of casing to increase the spiral case size, and then promote the air current flow through increase fan size, ensure that the air current is carried the diffusion effectively, promote to use and experience.

Description

Reasonable-layout fan

Technical Field

The utility model relates to a ventilation field, concretely relates to fan.

Background

The existing fan comprises a shell, wherein a volute, an air outlet channel and an air inlet channel are arranged in the shell, a fan is arranged in the volute, and the rotating fan obtains an air source through the air inlet channel and forms an air flow which is discharged along the air outlet channel. The volute and the air outlet channel are respectively arranged on two sides of the shell, the air outlet of the volute and the air inlet of the air outlet channel are connected in a cross-connection mode through the connecting pipeline, the air outlet channel is arranged along the length direction of the shell, the volute and the air outlet channel are respectively arranged on two sides of the width direction of the volute, so that the connecting pipeline cannot be coaxially arranged with the air outlet channel, more kinetic energy can be lost when air flows through the connecting pipeline and enters the air outlet channel, the air flow diffusion efficiency is influenced, the size of the volute is limited due to the fact that the size of the shell is limited by use standards, the air flow efficiency is influenced due to the fact that the size of a fan is influenced, and the use experience is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough of prior art, the utility model provides a rationally distributed fan sets up the air-out passageway on the tangential direction of spiral case, and the existing windage that reduces when air current flows in the air-out passageway in the spiral case effectively increases the spiral case size, promotes the air current flow, promotes to use and experiences.

The utility model discloses a following mode realizes: a fan reasonable in layout comprises a shell, wherein a volute, an air outlet channel and an air inlet channel are arranged in the shell, a fan is arranged in the volute, the rotating fan obtains an air source through the air inlet channel and forms an air flow which is arranged along the outer side of the air outlet channel, the axis of the air outlet channel and the periphery of the volute are arranged in a tangential mode, and when the fan rotates and drives the air flow to flow along the circumferential direction of the volute, the air flow can flow along the axis direction of the air outlet channel and is arranged outside. Set up the air-out passageway on the tangential direction of spiral case, can turn to the windage when effectively reducing the interior air current of spiral case and flowing into the air-out passageway through reducing the air current, can also effectively utilize the width of casing to increase the spiral case size, and then promote the air current flow through increase fan size, ensure that the air current is carried the diffusion effectively, promote to use and experience.

Preferably, the side wall of the volute is spiral, and the air inlet of the air outlet channel is communicated with the outer end part of the large-diameter end surface of the volute in a matching manner. The spiral volute has the functions of gathering and discharging airflow outwards, and external air extracted by the fan can be effectively accelerated and directly input into the air outlet channel along the tangential direction. The lateral wall that the diameter grow gradually can turn into the radial effort of air current into circumference effort, and then makes things convenient for the air current to arrange outward through the air-out passageway after accelerating along spiral case circumference.

Preferably, the side wall of the volute is arranged in an expanding manner along the circumferential direction by taking the axis of the fan as a center, so that two end edges of the side wall of the volute are arranged in a staggered manner in the radial direction to form a reserved space provided with the air outlet. Each section of the side wall of the volute is in a step-by-step diameter expansion shape, so that the end edges of the two ends of the side wall of the volute are intersected in the same radial plane, an opening communicated with the air inlet of the air outlet channel is formed between the two end edges of the side wall of the volute, the air flow in the volute is ensured to be input into the air outlet channel along the axis of the air inlet after flowing along the side wall, and the air flow is further ensured to flow along the axis of the air outlet channel and be uniformly discharged.

Preferably, the air inlet of the air outlet channel comprises a circumferential air inlet area arranged on the head end surface of the air outlet channel and a radial air inlet area arranged at the head end part of the air outlet channel and facing the fan side. The circumferential air inlet area is used for receiving airflow flowing along the side wall of the volute, the radial air inlet area is used for receiving airflow which is thrown out by the fan and flows to the air inlet along the radial direction, the received airflow flow is increased by increasing the area and the orientation of the air inlet, and the airflow conveying efficiency is effectively improved.

Preferably, the circumferential air inlet area and the radial air inlet area are communicated with each other and are arranged at the same height with the volute. The circumferential air inlet area and the radial air inlet area are spliced to form an air inlet with an L-shaped vertical section, the resistance to air flow is reduced by increasing the size of the air inlet, the height of the air inlet is the same as that of the volute, so that the top wall and the bottom wall of the volute can be smoothly connected with the top edge and the bottom edge of the air inlet, the wind resistance is effectively reduced, the air flow is improved,

preferably, the projection of the rotating shaft of the fan along the direction perpendicular to the axial line of the air outlet channel falls into the radial air inlet area. The radial air inlet area is arranged towards the rotating shaft of the fan, so that air flow radially thrown out by the fan can be effectively received by the radial air inlet area.

Preferably, the side edge of the air inlet is in transition connection with the corresponding side wall of the volute through a fillet. The resistance when the air current flows through is reduced through setting up the fillet, and then reduces the loss to the air current kinetic energy.

Preferably, the side wall of the volute and the corresponding outer side wall of the housing are arranged adjacent to each other, and the vertical projection of the volute completely falls into the housing. The volute effectively utilizes the width of the shell, and the fan with larger size is configured by increasing the size of the volute, so that the airflow flow is increased.

Preferably, the axis of the air outlet channel is arranged along the length direction of the shell, so that the length of the air outlet channel is effectively increased, the coverage area of an air outlet of the air outlet channel is further increased, and the air flow diffusion effect is improved.

Preferably, the middle of the bottom surface of the volute is communicated with the air inlet channel. The fan extracts outside air through an air inlet channel communicated with the middle of the volute so as to provide an air source for forming air flow.

The utility model has the advantages that: set up the air-out passageway on the tangential direction of spiral case, can turn to the windage when effectively reducing the interior air current of spiral case and flowing into the air-out passageway through reducing the air current, can also effectively utilize the width of casing to increase the spiral case size, and then promote the air current flow through increase fan size, ensure that the air current is carried the diffusion effectively, promote to use and experience.

Drawings

FIG. 1 is a schematic top view of the housing;

FIG. 2 is a schematic structural view of the housing;

FIG. 3 is a schematic bottom view of the blower;

FIG. 4 is a partial schematic view of the cross-sectional structure of the housing;

in the figure: 1. the fan comprises a shell, 2, a volute, 3, an air outlet channel, 4, an air inlet channel, 5, a fan, 6, a circumferential air inlet area and 7, a radial air inlet area.

Detailed Description

The essential features of the invention will be further explained below with reference to the drawings and the detailed description of the invention.

A reasonable layout fan as shown in fig. 1-4, which is composed of a casing 1, a volute 2, an air outlet channel 3 and an air inlet channel 4 are arranged in the casing 1, a fan 5 is arranged in the volute 2, the rotating fan 5 obtains an air source through the air inlet channel 4 and forms an air flow discharged along the air outlet channel 3, the axis of the air outlet channel 3 and the periphery of the volute 2 are arranged in a tangential direction, and when the fan 5 rotates and drives the air flow to flow along the circumferential direction of the volute 2, the air flow can flow along the axis of the air outlet channel 3 and be discharged. Set up air-out passageway 3 on the tangential direction of spiral case 2, can turn to the windage when effectively reducing 2 interior airflows of spiral case and flowing into air-out passageway 3 through reducing the air current, can also effectively utilize casing 1's width to increase 2 sizes of spiral case, and then promote the air current flow through 5 sizes of increase fan, ensure that the air current is carried the diffusion effectively, promote to use and experience.

In practical operation, the air inlet channel 4 is communicated with the middle of the volute 2, the air outlet channel 3 is communicated with the periphery of the volute 2, and the fan 5 is coaxially and rotatably installed in the volute 2. When the air-saving device is used, the fan 5 rotates and forms a low-pressure area in the middle area of the fan, so that the low-pressure area can extract air in an external space through the air inlet channel 4, the rotating fan 5 throws the continuously obtained air away and flows along the side wall of the volute 2 in the circumferential direction, and when the air flows to the air inlet of the air outlet channel 3, the air flows into the air outlet channel 3 through the air inlet and flows along the axis of the air outlet channel 3 to finish turning and discharging. In the process, the axis of the air outlet channel 3 is arranged along the tangential direction of the periphery of the volute 2, so that the airflow flowing along the circumferential direction of the side wall of the volute 2 can flow into the air outlet channel 3 by inertia after losing the guiding of the side wall of the volute 2, the resistance of the airflow during flowing is effectively reduced, the flow speed of the airflow leaving the air outlet channel 3 is further improved by maintaining the kinetic energy of the airflow, and the diffusion efficiency is effectively improved.

In actual operation, the side wall of the volute 2 is spiral, and the air inlet of the air outlet channel 3 is communicated with the outer end part of the large-diameter end surface of the volute 2 in a matching manner. The side wall of the volute 2 is arranged in an expanding manner along the circumferential direction by taking the axis of the fan 5 as the center, so that two end edges of the side wall of the volute 2 are arranged in a radial staggered manner and form a reserved space provided with an air outlet. The big-diameter end and the small-diameter end of the side wall of the volute 2 are converged in the same radial surface through circumferential extension, so that a reserved space which can be communicated with the air outlet channel 3 exists between the big-diameter end and the small-diameter end due to the fact that a radius difference exists between the big-diameter end and the small-diameter end, and air flow is guaranteed to flow into the air outlet channel 3 from the small-diameter end to the big-diameter end through the air inlet. The rotating direction of the fan 5 is consistent with the direction that the radius of the volute 2 is gradually increased, and the air flow can be ensured to flow into the air outlet channel 3 along a preset path.

In actual operation, the air inlet of the air outlet channel 3 includes a circumferential air inlet area 6 arranged on the head end surface of the air outlet channel 3 and a radial air inlet area 7 arranged at the head end of the air outlet channel 3 and facing the fan 5. The circumferential air inlet area 6 and the radial air inlet area 7 are communicated with each other and are arranged at the same height with the volute 2. The resistance of the air flow during flowing is reduced by increasing the area of the air inlet, so that the kinetic energy of the air flow is maintained, and the diffusion effect is improved. Specifically, the top edge and the bottom edge of the air inlet are respectively and smoothly connected with the top edge and the bottom edge of the volute 2, the lateral edge of the air inlet far away from the fan 5 is smoothly connected with the large-diameter section of the side wall of the volute 2, and the lateral edge of the air inlet close to the fan 5 is connected with the small-diameter section of the side wall of the volute 2.

In practical operation, the projection of the rotating shaft of the fan 5 along the direction perpendicular to the axis of the air outlet channel 3 falls into the radial air inlet area 7. The air outlet channel 3 can directly receive air flow from the fan 5 through the radial air inlet area 7, and the received air quantity is effectively improved.

In practical operation, the side edge of the air inlet is in transition connection with the corresponding side wall of the volute 2 through a fillet. Connect the region that links up each other smoothly through setting up the fillet, effectively reduce the resistance when the air current flows through.

In practical operation, the side wall of the volute 2 and the corresponding outer side wall of the housing 1 are disposed adjacent to each other, and the vertical projection of the volute 2 completely falls into the housing 1. The axis of air-out passageway 3 is followed the length direction setting of casing 1, air-out passageway 3 is followed 1 length direction's of casing projection completely falls into spiral case 2 for spiral case 2 can increase size and effectively utilize casing 1's broadwise size, and then promotes the air current flow through increase fan 5 diameter. Specifically, when the fan was used for integrated furred ceiling field, because the rigid coupling size corresponds with the decorative plate size between the fossil fragments for the fan for 1 size of casing is injectd, increases 5 sizes of fan under the prerequisite that does not increase 1 size of casing, effectively promotes airflow, promotes to use and experiences.

In actual operation, spiral case 2 leads to with outdoor space through inlet air channel 4 for the fan has the new trend function, perhaps spiral case 2 leads to with indoor space through inlet air channel 4, and sets up heating element in air-out passageway 3, makes the fan have the warm braw function, all should regard as the utility model discloses a specific embodiment.

Claims

1. The utility model provides a rationally distributed fan, includes casing (1), be equipped with spiral case (2), air-out passageway (3) and inlet air channel (4) in casing (1), be equipped with fan (5) in spiral case (2), pivoted fan (5) obtain the air supply and form along the outer air current that arranges of air-out passageway (3) through inlet air channel (4), its characterized in that, the axis of air-out passageway (3) with spiral case (2) periphery each other is the tangential setting, and when fan (5) rotated and ordered about the air current and flowed along spiral case (2) circumference, the air current can flow and arrange outward along air-out passageway (3) axis direction.

2. The reasonable layout fan according to claim 1, wherein the side wall of the volute (2) is spiral, and the air inlet of the air outlet channel (3) is in matching communication with the outer end part of the large-diameter end face of the volute (2).

3. The blower with reasonable layout according to claim 2, wherein the side wall of the volute (2) is arranged with a diameter expansion along the circumferential direction by taking the axis of the fan (5) as a center, so that two end edges of the side wall of the volute (2) are arranged in a staggered manner in the radial direction and form a reserved space with an air outlet.

4. The blower with reasonable layout according to claim 1, wherein the air inlet of the air outlet channel (3) comprises a circumferential air inlet area (6) arranged on the head end surface of the air outlet channel (3) and a radial air inlet area (7) arranged at the head end of the air outlet channel (3) and facing the fan (5).

5. A reasonably arranged fan according to claim 4, wherein the circumferential air intake area (6) and the radial air intake area (7) are communicated with each other and arranged at the same height as the volute (2).

6. A reasonably arranged fan according to claim 4, characterized in that the projection of the rotating shaft of the fan (5) along the direction perpendicular to the axis of the air outlet channel (3) falls into the radial air inlet area (7).

7. A rational arrangement fan according to claim 4, characterized in that the lateral edge of the inlet opening is in transition with the corresponding lateral wall of the volute (2) by means of rounded corners.

8. A rational fan according to any one of claims 1-7, characterized in that the side wall of the volute (2) and the corresponding outer side wall of the housing (1) are arranged adjacent to each other, the vertical projection of the volute (2) falling completely inside the housing (1).

9. A reasonably arranged fan according to claim 8, wherein the axis of the air outlet channel (3) is arranged along the length direction of the casing (1).

10. A reasonably arranged fan according to claim 8, wherein the middle of the bottom surface of the volute (2) is communicated with the air inlet channel (4).