CN220227284U - Double-horizontal-type structural coil fan - Google Patents

Abstract

The two fan components are horizontally arranged in the unit shell and are symmetrically distributed left and right, each fan component comprises a volute, a motor and an impeller, wherein the motor and the impeller are arranged in the volute, an inclined angle is formed between blades and end faces of the impeller, and the inclined angle is 60-80 degrees; the fan assembly adopting the double horizontal design can properly increase the diameter of the impeller in a limited installation space, the two spiral cases are symmetrically distributed, the flow velocity of the air outlet end of the unit shell is gradually reduced from the middle to the two sides, the phenomenon of flow velocity dip does not exist, the air flow is stable, the blades adopt an inclined design, in the rotating process, the different depths of the blades and the spiral tongues alternately act, the phase difference exists, and the pressure pulsation amplitude is reduced.

Description

Double-horizontal-type structural coil fan

Technical Field

The utility model relates to a double-horizontal-type structural coil fan.

Background

The coil fan is used for central air conditioning air supply, and the air current is formed by fan drive, flows out in the air outlet position after radiating fin, and the fan subassembly of current coil fan is generally vertical installation, has restricted fan subassembly's impeller diameter because of the limited mounted position of furred ceiling, when the circumstances of amount of wind demand is great, need rely on the fan to provide bigger rotational speed, leads to the air outlet of current vertical coil fan to outwards radiate the noise great, for the air-out noise of reduction unit, promotes the comfort level, need propose the fan unit design scheme of low noise.

Disclosure of Invention

Aiming at the defects existing in the problems, the utility model provides a double-horizontal-type structure coil fan.

In order to achieve the above purpose, the utility model provides a double-horizontal-type structural coil fan, which comprises a unit shell, two fan assemblies and a fan heat fin, wherein a partition plate is fixed in the middle of the unit shell, an air inlet end of the unit shell and an air outlet end of the unit shell are respectively formed at two sides of the partition plate, the fan heat fin is arranged at the air outlet end side of the unit shell, the two fan assemblies enter from the air inlet end side of the unit shell and are fixedly arranged on the partition plate, the two fan assemblies are horizontally arranged in the unit shell and are distributed in a bilateral symmetry manner, the fan assemblies comprise a volute, a motor and an impeller, the motor and the impeller are arranged in the volute, an inclined angle is formed between blades of the impeller and end faces, and the inclined angle is 60-80 degrees.

Further, a volute air inlet and a volute air outlet are formed in the volute, a connecting flange is formed on one side of the volute air outlet, the volute is fixedly connected to the partition board through the function of the connecting flange, and the partition board is provided with a vent hole matched with the connecting flange in size.

Further, during fixed installation, the two connecting flanges are close to each other, so that the two spiral cases are tightly attached to each other at the middle position, and meanwhile, the spiral cases are tightly attached to the unit shell at two sides.

Furthermore, the volute is also provided with a flat bottom, and the flat bottom is tightly attached to and fixed with the unit shell during installation.

Further, the fan assembly further comprises a motor mounting plate, the size of the motor mounting plate is larger than that of the air inlet of the volute, the motor is fixedly mounted on the motor mounting plate, the impeller is fixed on an output shaft of the motor, and the motor mounting plate is fixed on the volute through bolts, so that the impeller and the motor are mounted in the volute.

Further, the impeller is an integral piece and is made of PP material.

Compared with the prior art, the utility model has the beneficial effects that:

1. the fan assembly with double horizontal designs is adopted, so that the diameter of an impeller can be properly increased in a limited installation space, the rotating speed of a rated working condition is reduced, and the noise is reduced;

2. the two spiral cases are symmetrically distributed, the flow velocity of the air outlet end of the unit shell is gradually reduced from the middle to the two sides, the phenomenon of flow velocity dip does not exist, the airflow is stable, and the noise is low;

3. the blades adopt an inclined design, and in the rotating process, the blades have different depths and alternately act on the volute tongue, so that phase difference exists, the pressure pulsation amplitude is reduced, and further, the flow-induced noise is reduced.

Drawings

FIG. 1 is a perspective view of a dual horizontal construction coil blower of the present utility model;

FIG. 2 is an exploded view of a dual horizontal construction coil blower of the present utility model;

FIG. 3 is a perspective view of a dual horizontal construction coil fan of the present utility model (concealing the top of the unit housing);

FIG. 4 is an exploded view of the fan assembly involved;

fig. 5 is a schematic view of the inclination angle of the blades of the impeller.

In the figure: 1. a unit housing; 11. a partition plate; 12. an air inlet end of the unit shell; 13. an air outlet end of the unit shell; 2. a fan assembly; 21. a volute; 211. a volute air inlet; 212. a volute air outlet; 213. a connecting flange; 214. a flat bottom; 22. an impeller; 23. a motor; 24. a motor mounting plate; 3. and a heat radiating fin.

Detailed Description

As shown in fig. 1 to 5, a double horizontal type structural coil fan in the embodiment of the utility model comprises a unit shell 1, two fan assemblies 2 and a fan heat fin 3, wherein a partition plate 11 is fixed in the middle of the unit shell 1, a unit shell air inlet end 12 and a unit shell air outlet end 13 are respectively formed on two sides of the partition plate 11, the fan heat fin 3 is arranged on the unit shell air outlet end 13 side, the two fan assemblies 2 enter from the unit shell air inlet end 12 side and are fixedly arranged on the partition plate 11, the two fan assemblies 2 are horizontally arranged in the unit shell 1 and are symmetrically distributed left and right, the fan assemblies 2 comprise a volute 21, a motor 23 and an impeller 22 which are arranged in the volute 21, and an inclined angle is formed between the blades of the impeller 22 and the end face, wherein the inclined angle is 60-80 degrees; the volute 21 is provided with a volute air inlet 211 and a volute air outlet 212, the volute 21 is provided with a connecting flange 213 at one side of the volute air outlet 212, the connecting flange 213 is fixedly connected to the partition 11, and the partition 11 is provided with a vent hole with a size matched with the connecting flange 213.

During fixed installation, the two connecting flanges 213 are close to each other, so that the two volutes 21 are tightly attached to each other at the middle position, and meanwhile, the two sides of each volute 21 are tightly attached to the unit housing 1; the volute 21 is also formed with a flat bottom 214, and when installed, the flat bottom 214 is also tightly attached and fixed with the unit housing 1; the spiral case 21 adopts a double fixed supporting structure, and meanwhile, the side part of the spiral case 21 is limited, so that the spiral case 21 has no degree of freedom in the vertical direction and the horizontal direction, and the installation of the spiral case 21 is very stable.

The fan assembly 2 further comprises a motor mounting plate 24, the size of the motor mounting plate 24 is larger than that of the air inlet 211 of the volute, the motor 23 is fixedly mounted on the motor mounting plate 24, the impeller 22 is fixed on an output shaft of the motor 23, and the motor mounting plate 24 is fixed on the volute 21 through bolts, so that the impeller 22 and the motor 23 are mounted in the volute 21; impeller 22 is a unitary piece and is made of PP material.

The fan assembly with double horizontal designs is adopted, so that the diameter of an impeller can be properly increased in a limited installation space, the rotating speed of a rated working condition is reduced, and the noise is reduced; the two spiral cases are symmetrically distributed, the flow velocity of the air outlet end of the unit shell is gradually reduced from the middle to the two sides, the phenomenon of flow velocity dip does not exist, the airflow is stable, and the noise is low; the blades adopt an inclined design, and in the rotating process, the blades have different depths and alternately act on the volute tongue, so that phase difference exists, the pressure pulsation amplitude is reduced, and further, the flow-induced noise is reduced.

When in specific use, the utility model is described with reference to the drawings for convenient understanding;

when the fan assembly works, the impellers 22 of the two fan assemblies 2 rotate in opposite directions, gas flows from the volute air inlets 211 to the volute air outlets 212, the gas flows out of the air outlet end 13 of the unit shell after passing through the radiating fins 3, and meanwhile, a large amount of gas is sucked into the volute air inlets 211 of the volute 21 due to negative pressure at the air inlet end 12 side of the unit shell to form circulation.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A double horizontal structure coil fan, its characterized in that: including unit shell (1), two fan subassembly (2) and a fan heat fin (3), the middle part of unit shell (1) is fixed with baffle (11) and is in unit shell air inlet end (12), unit shell air-out end (13) are formed respectively to the both sides of baffle (11), fan heat fin (3) are installed unit shell air-out end (13) side, two fan subassembly (2) by unit shell air inlet end (12) side get into and fixed mounting are in on baffle (11), two fan subassembly (2) are in inside for horizontal installation and being a bilateral symmetry distribution of unit shell (1), fan subassembly (2) include spiral case (21), built-in motor (23) and impeller (22) of spiral case (21), form an inclination angle between the blade and the terminal surface of impeller (22), the angle of this inclination angle is 60~80 degrees.

2. The dual horizontal construction coil fan as set forth in claim 1 wherein: the spiral case (21) is provided with a spiral case air inlet (211) and a spiral case air outlet (212), one side of the spiral case air outlet (212) of the spiral case (21) is provided with a connecting flange (213), the spiral case is fixedly connected to the partition board (11) through the action of the connecting flange (213), and the partition board (11) is provided with a vent hole matched with the connecting flange (213) in size.

3. The dual horizontal construction coil fan as set forth in claim 2 wherein: during fixed installation, the two connecting flanges (213) are close to each other, so that the two spiral cases (21) are tightly attached to each other at the middle position, and meanwhile, the spiral cases (21) are tightly attached to the unit housing (1) at two sides.

4. A dual horizontal construction coil fan as set forth in claim 3 wherein: the volute (21) is also provided with a flat bottom (214), and when the volute is installed, the flat bottom (214) is also tightly attached and fixed with the unit shell (1).

5. The dual horizontal construction coil fan as set forth in claim 2 wherein: the fan assembly (2) further comprises a motor mounting plate (24), the size of the motor mounting plate (24) is larger than that of the volute air inlet (211), the motor (23) is fixedly mounted on the motor mounting plate (24), the impeller (22) is fixed on an output shaft of the motor (23), and the motor mounting plate (24) is fixed on the volute (21) through bolts, so that the impeller (22) and the motor (23) are mounted in the volute (21).

6. The dual horizontal construction coil fan as set forth in claim 1 wherein: the impeller (22) is an integral piece and is made of PP material.