CN204693608U - Fan system and air conditioner - Google Patents

Abstract

The utility model discloses a fan system and an air conditioner, which belong to the technical field of air conditioning and are designed to solve the problems of small air output and poor air circulation effect of the existing air conditioner. A fan system, comprising a hollow casing, a centrifugal fan arranged in the casing, an air return port and an air outlet arranged on the casing, and a cross-flow fan arranged opposite to the air outlet of the centrifugal fan in the casing, And a heat exchanger provided between the centrifugal fan and the cross-flow fan, wherein the heat exchanger includes at least one set of fin structures arranged circumferentially along the air inlet side of the cross-flow fan; the heat exchanger is used for The centrifugal fan is used for heat exchange, and the cross-flow fan is used to send the air after the heat exchange of the heat exchanger from the air outlet. The fan system has a large air volume and a good air circulation effect. An air conditioner, including the above-mentioned fan system, has a high degree of comfort, can supply air from multiple angles, and can improve indoor air quality.

Description

Fan system and air conditioner

technical field

The utility model relates to a fan system and an air conditioner with the fan system.

Background technique

At present, most of the household small ducted air conditioners use a centrifugal fan system to realize the air inlet and outlet. There are two commonly used structures for the centrifugal fan system: one is to use a return air outlet and an air outlet on the side of the shell to realize the side return air and side air outlet of the air conditioner, as shown in Figure 1, the air outlet direction of this structure is Single, the air circulation effect is poor; the other is to use a return air outlet on the bottom of the shell, and an air outlet on the side of the shell. Indoors, as shown in Figure 2, this structure is essentially the same as the previous structure, and the air is blown from the side, the air volume is small, and the air conditioning comfort is poor.

Utility model content

One purpose of the utility model is to propose a fan system with larger air volume and better air circulation effect.

Another purpose of the utility model is to provide an air conditioner with high comfort, multi-angle air supply and improved indoor air quality.

For this purpose, on the one hand, the utility model adopts the following technical solutions:

A fan system, comprising a hollow casing, a centrifugal fan provided in the casing, an air return port and an air outlet provided on the casing, and an air outlet connected to the centrifugal fan in the casing. A cross-flow fan with opposite air outlets, and a heat exchanger provided between the centrifugal fan and the cross-flow fan, wherein the heat exchanger includes at least one set of fin structures along the The air inlet side of the cross-flow fan is arranged circumferentially; the heat exchanger is used to exchange heat for the air outlet of the centrifugal fan, and the cross-flow fan is used to transfer the heat exchanged wind from the heat exchanger to The air outlet sends out.

Further, the fan system also includes at least one fresh air outlet provided on the housing for communicating with the outdoor, and the centrifugal fan is used to combine the outdoor fresh air at the new air outlet with the air return at the return air outlet. Indoor return air is drawn into the housing.

Further, the air outlet of the cross-flow fan is arranged opposite to the air outlet.

Further, an air deflector that can adjust the air outlet angle is provided at the air outlet, and the air deflector is used to change the direction of the air flow of the air outlet.

As a preferred solution of the present invention, the heat exchanger includes a first fin structure, a second fin structure, and a third fin structure, wherein the first fin structure and the air outlet of the centrifugal fan Opposite; one end of the second fin structure is connected to the first fin structure, and the other end is connected to the third fin structure; the second fin structure and the third fin structure form a V shape structure and is located at the bottom of the cross-flow fan.

Further, the angle α between the first fin structure and the horizontal direction is less than or equal to 90°.

Further, the angle β between two adjacent fin structures is greater than 90° and less than 150°.

Further, the inclination angle Φ between the outlet diffuser section of the cross-flow fan and the horizontal direction is greater than 10° and less than 60°.

On the other hand, the utility model adopts the following technical solutions:

An air conditioner, comprising the above-mentioned fan system.

The fan system provided by the utility model is provided with a cross-flow fan sharing an air duct with the centrifugal fan in the shell, and a heat exchanger with a fin structure is arranged circumferentially on the air inlet side of the cross-flow fan, and a plurality of fin structures The heat exchanger increases the heat exchange area; there is also a fresh air outlet connected to the outdoor on the shell, and the centrifugal fan can draw in the fresh air and return air at the same time, which can not only increase the air volume but also improve the air quality. The air circulation effect of the system is good, and it can realize multi-angle air supply.

The air conditioner provided by the utility model is equipped with the above-mentioned air outlet system. The air conditioner has a high degree of comfort, can supply air from multiple angles, can improve indoor air quality, and can reduce power consumption.

Description of drawings

Fig. 1 is one of structural schematic diagrams of existing blower system;

Fig. 2 is the second structural diagram of the existing blower system;

Fig. 3 is a schematic structural diagram of the fan system provided by the preferred embodiment 1 of the present invention.

Labeled in the figure:

1. Fresh air outlet; 2. Return air outlet; 3. Centrifugal fan; 4. Heat exchanger; 41. First fin structure; 42. Second fin structure; 43. Third fin structure; 5. Cross-flow fan ; 6, air outlet; 7, wind deflector.

Detailed ways

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Preferred embodiment one:

This preferred embodiment provides a blower system. As shown in Figure 3, the fan system includes a hollow casing, a centrifugal fan 3 provided in the casing, an air return port 2 and an air outlet 6 provided on the casing, and an air outlet connected to the centrifugal fan 3 in the casing. The cross-flow fan 5 with the tuyere oppositely arranged, and the heat exchanger 4 provided between the centrifugal fan 3 and the cross-flow fan 5, wherein the heat exchanger 4 includes at least one set of fin structures, and the fin structure is along the cross-flow fan. 5 are arranged circumferentially on the side of the air inlet; the heat exchanger 4 is used to exchange heat for the air from the centrifugal fan 3 , and the cross-flow fan 5 is used to send the air after the heat exchange of the heat exchanger 4 through the air outlet 6 .

The fan system also includes at least one fresh air outlet 1 provided on the housing for communicating with the outside, and the centrifugal fan 3 is used to draw the outdoor fresh air at the fresh air outlet 1 and the indoor return air at the return air outlet 2 into the housing. In this embodiment, the fan system includes a fresh air outlet 1 arranged on one side of the housing. The fresh air outlet 1 can introduce fresh air and work simultaneously with the return air outlet 2 to increase the air volume of the indoor unit.

Specifically, the air outlet of the cross-flow fan 5 is arranged opposite to the air outlet 6; the air outlet 6 is provided with an air deflector 7 that can adjust the angle of the air outlet, and the air deflector 7 is used to change the direction of the air flow of the air outlet. The direction of the air outlet airflow can be flexibly adjusted according to actual needs.

In this embodiment, the heat exchanger 4 includes a first fin structure 41, a second fin structure 42 and a third fin structure 43, wherein the first fin structure 41 is opposite to the air outlet of the centrifugal fan 3; One end of the fin structure 42 is connected to the first fin structure 41, and the other end is connected to the third fin structure 43; the second fin structure 42 and the third fin structure 43 form a V-shaped structure and are located at the bottom of the cross-flow fan 5 . The angle α between the first fin structure 41 and the horizontal direction is less than or equal to 90°; the angle β between two adjacent fin structures is greater than 90° and less than 150°; The inclination angle Ф of the direction is greater than 10° and less than 60°. This design changes the situation that the airflow of the existing air conditioner can only be blown directly, and the user can adjust the airflow direction according to the actual use requirements; the height H1 of the outlet of the centrifugal fan 3 is smaller than that of the first fin The vertical distance H3 from the top of the structure 41 to the end of the second fin structure 42; the height H2 of the first fin structure 41 is smaller than the height H1 of the outlet of the centrifugal fan 3, and can also be set as the first fin structure 41 according to actual needs The height H2 is greater than or equal to the height H1 of the centrifugal fan 3 outlet.

Preferred embodiment two:

This preferred embodiment discloses a fan system, which has basically the same structure as the preferred embodiment 1, including a hollow casing, a centrifugal fan inside the casing, an air return port and an air outlet on the casing , also includes a cross-flow fan arranged opposite to the air outlet of the centrifugal fan in the casing, and a heat exchanger provided between the centrifugal fan and the cross-flow fan, wherein the heat exchanger includes at least one set of fin structures, and the fins The structure is arranged circumferentially along the air inlet side of the cross-flow fan; the heat exchanger is used to exchange heat for the air discharged by the centrifugal fan, and the cross-flow fan is used to send the air after heat exchange by the heat exchanger from the air outlet.

The difference is that the housing is not limited to one fresh air outlet, but multiple fresh air outlets for connecting to the outdoors can be installed, as long as the outdoor fresh air can be drawn into the housing by the centrifugal fan; the heat exchanger is also not It is not limited to the three-fin structure, as long as it can be arranged circumferentially on the air inlet side of the cross-flow fan to realize the heat exchange function, the structure and number of heat exchangers can be based on the size and actual needs of the cross-flow fan to set.

Preferred embodiment three:

This embodiment discloses an air conditioner, and the air conditioner includes the fan system as described in the preferred embodiment 1 or the preferred embodiment 2. The air conditioner provided by this embodiment has high comfort, can supply air from multiple angles, can improve indoor air quality, and can reduce power consumption.

The embodiments of the present utility model have been described above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned specific implementation manners, and those skilled in the art can Many forms can also be obtained, and these are all within the protection scope of the present utility model.

Claims (9)

1. a blower fan system, comprise the housing of hollow, the centrifugal blower (3) be provided with in described housing, the return air inlet (2) be provided with on the housing and air outlet (6), it is characterized in that, also be included in described housing and cross flow fan (5) that described centrifugal blower (3) air outlet is oppositely arranged and the heat exchanger (4) that is provided with between described centrifugal blower (3) and described cross flow fan (5), wherein

Described heat exchanger (4) comprises at least one group of fin structure, and described fin structure is circumferentially arranged along described cross flow fan (5) air inlet side; Described heat exchanger (4) is for carrying out heat exchange for described centrifugal blower (3) air-out, and described cross flow fan (5) is for sending the wind after described heat exchanger (4) heat exchange from described air outlet (6).

2. a kind of blower fan system according to claim 1, it is characterized in that, described blower fan system also comprise be provided with on the housing at least one fresh wind port (1) outside communication chamber, described centrifugal blower (3) is for by housing described in the new wind in outdoor at described fresh wind port (1) place and the indoor return air suction at described return air inlet (2) place.

3. a kind of blower fan system according to claim 2, is characterized in that, gas outlet and the described air outlet (6) of described cross flow fan (5) are oppositely arranged.

4. according to the arbitrary described a kind of blower fan system of claim 1-3, it is characterized in that, be provided with the wind deflector (7) of adjustable air outlet angle at described air outlet (6) place, described wind deflector (7) is for changing the direction of air-out air-flow.

5. a kind of blower fan system according to claim 4, is characterized in that, described heat exchanger (4) comprises the first fin structure (41), the second fin structure (42) and the 3rd fin structure (43), wherein,

Described first fin structure (41) is relative with the gas outlet of described centrifugal blower (3); Described second fin structure (42) one end is connected with described first fin structure (41), and the other end is connected with described 3rd fin structure (43); Described second fin structure (42) and described 3rd fin structure (43) form V-shaped structure and are positioned at the bottom of described cross flow fan (5).

6. a kind of blower fan system according to claim 5, is characterized in that, described first fin structure (41) is less than or equal to 90 ° with the angle α of horizontal direction.

7. a kind of blower fan system according to claim 6, is characterized in that, the angle β between two adjacent fins structure is greater than 90 ° and is less than 150 °.

8. a kind of blower fan system according to claim 7, is characterized in that, the outlet diffuser of described cross flow fan (5) and the inclination angle Ф of horizontal direction are greater than 10 ° and are less than 60 °.

9. an air-conditioner, is characterized in that, comprise as arbitrary in claim 1-8 as described in blower fan system.