CN217950785U

CN217950785U - Energy-saving centrifugal fan

Info

Publication number: CN217950785U
Application number: CN202221912329.1U
Authority: CN
Inventors: 曹高琴; 海进; 罗凌红
Original assignee: Jiangxi Haoyu Ventilation Equipment Co ltd
Current assignee: Jiangxi Haoyu Ventilation Equipment Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-02
Anticipated expiration: 2032-07-22

Abstract

The utility model discloses an energy-saving centrifugal fan, including centrifugal fan main part and driving motor. Has the beneficial effects that: the utility model discloses a bleed pipe, the return bend, back flow and back shroud, the back shroud cover is established in driving motor's the rear end cap outside, the centrifugal fan main part produces the air current and enters into the connecting tube through the air-out end, partial air current enters into the return bend through the bleed pipe in, enter into driving motor's shell through the intake pipe, the louvre that the air current passed driving motor's rear end cap enters into the return pipe, flow back to in the connecting tube, the air current is when passing driving motor inside, take away the inside heat of driving motor, thereby for the driving motor cooling, reduce the inside energy consumption that arouses the increase of internal resistance value because of the temperature risees and the mechanical loss that the temperature risees and increase of driving motor, the air current that utilizes centrifugal fan main part self to produce carries out the heat dissipation that circulates, the problem of addding heat radiation structure for driving motor alone has been saved, and is more energy-conserving.

Description

Energy-saving centrifugal fan

Technical Field

The utility model relates to a centrifugal fan technical field particularly, relates to energy-saving centrifugal fan.

Background

The centrifugal fan is a machine which relies on input mechanical energy to improve gas pressure and discharge gas, and is a driven fluid machine, the centrifugal fan adopts a driving motor to drive a impeller to rotate to work, main electric equipment is the driving motor, main energy consumption equipment is also the driving motor, when the driving motor works continuously, the internal temperature can rise, the internal temperature rise can lead to the increase of the resistance value of the metal material in the centrifugal fan, the increase of the resistance value can lead electric energy to be converted into heat energy, the heat energy does not have beneficial effect in the centrifugal fan, the energy consumption is increased, although the driving motor at the present stage is internally provided with a fan structure to help heat dissipation, however, the driving motor still needs an electric driving fan structure, the electric quantity consumption is caused, and the improvement can be further made.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an energy-saving centrifugal fan possesses and utilizes self-production wind-force to dispel the heat, more energy-conserving advantage, and then solves the problem among the above-mentioned background art.

(II) technical scheme

For the above-mentioned advantage that utilizes self-production wind-force to dispel the heat, more energy-conserving, the utility model discloses a concrete technical scheme as follows:

energy-saving centrifugal fan, including centrifugal fan main part and driving motor, the centrifugal fan main part includes driving motor and air-out end, and air-out end side surface through connection has the bleed pipe to the bleed pipe other end through connection has the return bend, the return bend other end through connection has the filtration storehouse, and filters the storehouse bottom surface through connection and have the intake pipe to the intake pipe other end and driving motor's shell through connection, the fixed cover in the driving motor rear end cap outside is equipped with the back shroud, and the back shroud just facade through connection has the back flow, air-out end through connection has the connecting tube, the back flow other end and connecting tube through connection.

Further, the inside slant staggered arrangement of filtration storehouse has held the cage, and holds the inside active carbon that has held of cage to it has the filter screen to hold cage below in the inside fixed mounting of filtration storehouse.

Furthermore, the right vertical surface of the filter bin is hinged with a cleaning door, and the cleaning door is a sealed door.

Furthermore, one end of the rear cover is integrally connected with a connecting disc, and the connecting disc is fixedly connected with the rear end cover of the driving motor through a fixing screw.

Furthermore, the bottom surface of the air inlet pipe is in through connection with the top surface of the shell, close to the front end cover, of the driving motor.

Furthermore, the containing cage is of a hollow structure, and the pore diameter of the surface of the containing cage is smaller than the minimum particle diameter of the activated carbon.

Further, the surface of the elbow is provided with a switch valve.

(III) advantageous effects

Compared with the prior art, the utility model provides an energy-saving centrifugal fan possesses following beneficial effect:

(1) The utility model discloses a bleed pipe, the return bend, back flow and back shroud, the back shroud cover is established in driving motor's the rear end cap outside, the centrifugal fan main part produces the air current and enters into the connecting tube through the air-out end, partial air current enters into in the return bend through bleed pipe, enter into driving motor's shell through the intake pipe, the louvre that the air current passed driving motor's rear end cap enters into the back flow, flow back in the connecting tube, the air current is when passing driving motor inside, take away the inside heat of driving motor, thereby for the driving motor cooling, reduce inside because of the temperature risees and arouse that the internal resistance value increases and the mechanical loss that the temperature risees and increase of driving motor, the air current that utilizes centrifugal fan main part self to produce carries out the circulation heat dissipation, the problem of addding heat radiation structure for driving motor alone has been saved, it is more energy-conserving.

(2) The utility model discloses a cross the filter bin, cross the inside staggered arrangement in filter bin and hold the cage, the air current when holding the cage, with hold the inside active carbon contact of cage, the active carbon adsorbs the tiny particle dust to increase the cleanliness factor that enters into the air current among the driving motor, avoid haring driving motor, simultaneously, cross the inside filter screen interception large granule impurity in filter bin, arouse driving motor in avoiding entering into driving motor and damage, protected driving motor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an energy-saving centrifugal fan proposed by the present invention;

fig. 2 is a front view of the energy-saving centrifugal fan provided by the present invention;

fig. 3 is an enlarged view of a node a of the energy-saving centrifugal fan provided by the present invention;

fig. 4 is a schematic structural view of the rear cover provided by the present invention.

In the figure:

1. a centrifugal fan main body; 2. an air outlet end; 3. a bleed pipe; 4. bending a pipe; 5. a filtering bin; 6. an air inlet pipe; 7. a drive motor; 8. a rear cover; 9. a return pipe; 10. cleaning the door; 11. a containing cage; 12. activated carbon; 13. a filter screen; 14. a connecting disc; 15. and connecting the pipelines.

Detailed Description

To further illustrate the various embodiments, the present invention provides the accompanying drawings, which are part of the disclosure and which are primarily intended to illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and, by reference to these drawings, those of ordinary skill in the art will understand the principles of the invention and its advantages, with reference to the drawings and figures, in which elements are not drawn to scale and like elements are generally designated by like reference numerals.

According to the utility model discloses an embodiment provides energy-saving centrifugal fan.

The present invention will be further explained with reference to the accompanying drawings and specific embodiments, as shown in fig. 1-4, an energy-saving centrifugal fan according to an embodiment of the present invention comprises a centrifugal fan main body 1 and a driving motor 7, the centrifugal fan main body 1 comprises a driving motor 7 and an air outlet 2, which are common structures in the art and will not be described herein, and a surface of one side of the air outlet 2 is connected to a bleed air pipe 3, and another end of the bleed air pipe 3 is connected to an elbow 4, and another end of the elbow 4 is connected to a filtering bin 5, and a bottom surface of the filtering bin 5 is connected to an air inlet pipe 6, and another end of the air inlet pipe 6 is connected to a housing of the driving motor 7, wherein a bottom surface of the air inlet pipe 6 is connected to a top surface of the housing of the driving motor 7 near a front end cap, so as to increase a length of an airflow path and improve heat dissipation efficiency, and a rear cover 8 is fixedly covered on an outer side of the rear end cap of the driving motor 7, and the front vertical surface of the rear cover 8 is connected with a return pipe 9 in a through way, the air outlet end 2 is connected with a connecting pipeline 15 in a through way, the other end of the return pipe 9 is connected with the connecting pipeline 15 in a through way, the rear cover 8 covers the outer side of the rear end cover of the driving motor 7, the centrifugal fan body 1 generates airflow which enters the connecting pipeline 15 through the air outlet end 2, part of the airflow enters the elbow 4 through the air guide pipe 3 and enters the shell of the driving motor 7 through the air inlet pipe 6, the airflow passes through the radiating holes of the rear end cover of the driving motor 7 and enters the return pipe 9 to flow back into the connecting pipeline 15, and when the airflow passes through the inside of the driving motor 7, the heat inside of the driving motor 7 is taken away, so that the driving motor 7 is cooled, the energy consumption increased due to the increase of the internal resistance value caused by the temperature rise in the inside of the driving motor 7 and the mechanical loss increased due to the temperature rise are reduced, the air flow generated by the centrifugal fan main body 1 is utilized to circularly dissipate heat, so that the problem that a heat dissipation structure is additionally arranged for the driving motor 7 independently is solved, and the energy is saved.

In one embodiment, the holding cages 11 are obliquely and alternately arranged inside the filtering bin 5, and the activated carbon 12 is held inside the holding cages 11, wherein the holding cages 11 are hollow structures, the surface pore diameters of the holding cages 11 are smaller than the minimum particle diameter of the activated carbon 12, and a filter screen 13 is fixedly mounted inside the filtering bin 5 below the holding cages 11, wherein the front vertical surface of the filtering bin 5 is hinged with a cleaning door 10, the cleaning door 10 is a closed door which is a common structure and avoids air leakage, the holding cages 11 are alternately arranged inside the filtering bin 5, when air flows pass through the holding cages 11, the air flows are in contact with the activated carbon 12 inside the holding cages 11, the activated carbon 12 adsorbs small-particle dust, so that the cleanliness of the air flow entering the driving motor 7 is increased, the driving motor 7 is prevented from being damaged, and meanwhile, the filter screen 13 inside the filtering bin 5 intercepts large-particle impurities and avoids entering the driving motor 7 to cause damage to the driving motor 7, and the driving motor 7 is protected.

In one embodiment, one end of the rear cover 8 is integrally connected with a connecting disc 14, the connecting disc 14 is fixedly connected with a rear end cover of the driving motor 7 through a fixing screw, and a contact position of the rear end cover and the rear cover 8 can be sealed by applying sealant in an adhesion mode, so that air leakage is reduced.

In one embodiment, the surface of the elbow 4 is provided with a switch valve which can be closed when the weather is cold.

The working principle is as follows:

the centrifugal fan main body 1 generates air flow which enters a connecting pipeline 15 through an air outlet end 2, partial air flow enters a bent pipe 4 through an air guide pipe 3, enters a shell of a driving motor 7 through an air inlet pipe 6, the air flow passes through heat dissipation holes of a rear end cover of the driving motor 7 and enters a return pipe 9 and flows back to the connecting pipeline 15, when the air flow passes through the inside of the driving motor 7, heat inside the driving motor 7 is taken away, so that the driving motor 7 is cooled, the energy consumption increased due to the increase of an internal resistance value caused by the increase of the temperature inside the driving motor 7 and the mechanical loss increased due to the increase of the temperature are reduced, the air flow generated by the centrifugal fan main body 1 per se is utilized for circulating heat dissipation, the problem that a heat dissipation structure is separately added for the driving motor 7 is solved, energy is saved, meanwhile, before the air flow enters the inside of the driving motor 7, the air flow firstly passes through a filter bin 5, when the air flow passes through the filter bin 11, the air flow is in contact with an active carbon 12 inside the filter bin 11, the active carbon 12 adsorbs small-particle dust, the cleanliness of the air flow entering the driving motor 7 is improved, damage of the filter screen 13 is avoided, and the driving motor 7 is prevented, and the driving motor 7 is protected.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Energy-saving centrifugal fan, its characterized in that, including centrifugal fan main part (1) and driving motor (7), centrifugal fan main part (1) includes driving motor (7) and air-out end (2), and air-out end (2) side surface through connection has bleed pipe (3) to bleed pipe (3) other end through connection has return bend (4), return bend (4) other end through connection has filter bin (5), and filter bin (5) bottom surface through connection has intake pipe (6) to the shell through connection of intake pipe (6) other end and driving motor (7), the fixed cover in driving motor (7) rear end cap outside is equipped with rear cover (8), and rear cover (8) just founds face through connection and has back flow (9), air-out end (2) through connection has connecting tube (15), back flow (9) other end and connecting tube (15) through connection.

2. The energy-saving centrifugal fan as claimed in claim 1, wherein the filtering bin (5) is provided with holding cages (11) in an obliquely staggered manner, the holding cages (11) are filled with activated carbon (12), and a filter screen (13) is fixedly mounted inside the filtering bin (5) below the holding cages (11).

3. Energy-saving centrifugal fan according to claim 1, characterized in that the right vertical surface of the filtration cabin (5) is hinged with a cleaning door (10), and the cleaning door (10) is a sealed door.

4. The energy-saving centrifugal fan as claimed in claim 1, wherein one end of the rear cover (8) is integrally connected with a connecting disc (14), and the connecting disc (14) is fixedly connected with the rear end cover of the driving motor (7) through a fixing screw.

5. The energy-saving centrifugal fan as claimed in claim 1, wherein the bottom surface of the air inlet pipe (6) is connected with the top surface of the shell of the driving motor (7) close to the front end cover in a penetrating way.

6. The energy-saving centrifugal fan as claimed in claim 2, wherein the holding cage (11) is a hollow structure, and the pore diameter of the surface of the holding cage (11) is smaller than the minimum particle diameter of the activated carbon (12).

7. Energy saving centrifugal fan according to claim 1, characterized in that the elbow (4) is surface mounted with a switch valve.