CN204227642U - Through-flow ducting assembly and vertical air-conditioner indoor unit - Google Patents

Abstract

The utility model discloses a cross-flow air channel assembly, which comprises a first volute and a second volute combined to form an air channel that guides the air flow, and the first volute and/or the second volute At least one inwardly protruding air guide structure is provided on the inner surface defining the air channel, and the air guide structure extends vertically as a whole. The utility model also discloses a vertical air conditioner indoor unit. The utility model adjusts the direction of the air flow through the air duct by setting the air guiding structure, and prevents the air flow in the air duct from generating eddy currents and turbulent flows that are likely to cause unstable air outlet and abnormal sound, thereby reducing the noise of the air outlet and improving the sound quality of the air outlet. The effect of improving user comfort is achieved.

Description

Cross-flow air duct assembly and vertical air conditioner indoor unit

technical field

The utility model relates to the technical field of air conditioners, in particular to a cross-flow air duct assembly and a vertical air conditioner indoor unit.

Background technique

Vertical air conditioners have been widely used in family and office environments. Although its noise is lower than the national standard, in a closed and quiet environment, the noise generated by the indoor cabinet machine during work is still too loud, which cannot meet the requirements of high-end customers. The noise generated by the indoor cabinet machine is composed of airflow noise and mechanical noise, and the airflow noise is far greater than the mechanical noise. Airflow noise mainly includes air intake noise, wind wheel noise (including rotation noise and vortex noise), evaporator noise and exhaust port noise.

In order to solve the above problems, the cross-flow air duct system is usually used to replace the existing centrifugal air duct system. Although the noise of the whole machine is reduced to a certain extent, due to the problem of the air duct curve, the airflow will generate eddies and turbulence when passing through the air duct. On the one hand, it causes the problem of unstable air outlet, and on the other hand, it is easy to produce abnormal sounds similar to "huhu", which affects the sound quality of the air outlet of the whole machine and reduces the comfort of use.

The above content is only used to assist in understanding the technical solution of the present utility model, and does not mean to admit that the above content is the prior art.

Utility model content

The main purpose of the utility model is to solve the technical problem that the air outlet of the air duct of the existing vertical air conditioner indoor unit is unstable and the abnormal sound of the air flow is easy to be generated.

In order to achieve the above object, the utility model provides a cross-flow air duct assembly, including a first volute and a second volute combined to form an air duct that guides the airflow, the first volute and/or the second volute At least one inwardly protruding air guide structure is provided on the inner surface of the second volute defining the air passage, and the air guide structure extends vertically as a whole.

Preferably, the inner surfaces of the first volute and the second volute are respectively provided with one wind guide structure, and the air guide structure of the first volute and the air guide structure of the second volute They are spaced apart at a given distance in the air outlet direction of the air duct.

Preferably, the inner surfaces of the first volute and the second volute are respectively provided with a plurality of the air guide structures, and the air guide structures on each side are spaced apart along the air outlet direction of the air duct.

Preferably, the cross-section of the air guiding structure of the first volute is triangular, trapezoidal or arc-shaped.

Preferably, the air guide structure of the second volute is in the shape of a flat plate, and is inclined toward the air inlet of the air duct relative to the inner surface of the second volute.

Preferably, the cross-flow air duct assembly further includes a cross-flow wind wheel and a motor installed above or below the cross-flow wind wheel to control the rotation of the cross-flow wind wheel, and the cross-flow wind wheel is placed vertically.

Preferably, the inner surfaces defining the air channel in the first volute and the second volute are planes, and the inner surfaces defining the air channel in the first volute and the cross-flow rotor The outer contour formed during rotation is tangent.

Preferably, the inner surface defining the air channel in the first volute is parallel to the inner surface defining the air channel in the second volute.

In addition, in order to achieve the above object, the utility model also provides a vertical air conditioner indoor unit, which includes the cross-flow air duct assembly described in any one of the above technical solutions.

The utility model provides a cross-flow air duct assembly and a vertical air-conditioning indoor unit. The air guide structure extending along the vertical direction is arranged in the air duct to adjust the direction of the air flow through the air duct and prevent the air flow from being blown by the wind. The vortex and turbulent flow that easily cause unstable air outlet and abnormal sound are generated in the channel, thereby reducing the noise of the air outlet, improving the sound quality of the air outlet, and achieving the effect of improving the comfort of the user.

Description of drawings

Fig. 1 is a schematic diagram of assembly of an embodiment of the through-flow air duct assembly of the present invention;

Fig. 2 is a cross-sectional view of the through-flow air duct assembly shown in Fig. 1 along line A-A;

Fig. 3 is a partially enlarged view of part B shown in Fig. 2;

Fig. 4 is a partially enlarged view of part C shown in Fig. 2;

Fig. 5 is a schematic structural view of the first volute shown in Fig. 1;

FIG. 6 is a schematic structural diagram of the second volute shown in FIG. 1 .

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Figure 1 is a preferred embodiment of the cross-flow air duct assembly of the present utility model; in the figure shown, the top of the definition diagram is the top of the cross-flow air duct assembly, and the bottom of the definition illustration is the bottom of the cross-flow air duct assembly end, the direction from the top end to the base is the vertical direction.

The utility model provides a cross-flow air duct assembly, referring to Fig. 1 and Fig. 2. In one embodiment, the cross-flow air duct assembly is combined to form the first volute 100 and The second volute 200, for example, the first volute 100 and the second volute 200 are plastic parts, and the two can be fixed together by screws, buckles or a combination of the two. It can be used together with the cross-flow air duct assembly to form air-conditioning products such as vertical air conditioner indoor units, air purifiers, etc. With the help of the cross-flow air duct assembly, the airflow that quickly flows through the heat exchanger and purification device can be generated, and the temperature will , The filtered air flow is sent out.

In this embodiment, the cross-flow air duct assembly also includes a cross-flow wind wheel 400 and a motor 300 installed above or below the cross-flow wind wheel 400 to control the rotation of the cross-flow wind wheel 400. As shown in FIG. The top of the flow wind wheel 400, and the cross-flow wind wheel 400 is placed vertically. In order to reduce the noise generated when the airflow passes through the air duct 500, at least one inwardly protruding air guiding structure is provided on the inner surface of the first volute 100 and/or the second volute 200 defining the air duct 500 (refer to FIG. and Fig. 4 are respectively the first air guide structure 110 and the second air guide structure 210), the air guide structure extends vertically as a whole, preferably, the two ends of the air guide structure extend to the upper end and the upper end of the air duct 500 respectively. lower end.

Driven by the cross-flow wind wheel 400, the airflow enters the air duct 500 at a certain deflection angle, so there are some areas on the wall of the air duct 500 that the airflow cannot reach, and these areas and the surrounding areas that the airflow cannot reach often generate eddies and turbulence. As a result, the wind is unstable and the noise is large. By setting the air guide structure extending along the vertical direction in the air duct 500, the direction of the airflow passing through the air duct 500 is adjusted to prevent the air flow from generating eddy currents and Turbulent flow, thereby reducing the noise of the wind, improving the sound quality of the wind, and achieving the effect of improving the comfort of the user.

2 to 6, in a specific embodiment, the inner surfaces of the first volute 100 and the second volute 200 are respectively provided with an air guiding structure, namely the first air guiding structure 110 and the second air guiding structure 210 , the first air guide structure 110 and the second air guide structure 210 are separated by a given distance in the air outlet direction of the air duct 500, as shown in FIG. The wind structure 110 and the second wind guide structure 210 , the first wind guide structure 110 and the second wind guide structure 210 can change the direction of the airflow, thereby eliminating the eddy and turbulent flow in the air duct 500 . Preferably, the cross-section of the first air guide structure 110 is triangular, trapezoidal or arc-shaped. For example, the cross-section of the first air guide structure 110 in this embodiment is an isosceles trapezoidal shape. Concave, and protruding inside the first volute 100 to form an integrated first air guide structure 110, the structure is simple and easy to realize, and the air resistance can be reduced under the premise of eliminating the phenomenon of unstable air outlet and abnormal sound in the air duct 500 , will not affect the air volume.

As shown in Figure 2, when the cross-flow rotor 400 is in normal operation, the cross-flow rotor 400 rotates counterclockwise, so the air volume of the part of the air duct 500 close to the first volute 100 is relatively large, while the part of the air volume close to the second volute 200 Relatively small, so the wind pressure difference on both sides of the air duct 500 is relatively large, which is likely to cause unstable wind. However, by designing the second air guide structure 210 as a flat plate, and the second air guide structure 210 is relatively The inner surface of the volute 200 is inclined towards the airflow inlet of the air duct 500, so the wind pressure on the side of the second volute 200 close to the cross-flow wind wheel 400 can be increased, so that the wind pressure in the air duct 500 is evenly distributed, and the air output is more efficient. It is smooth and reduces noise to a certain extent. Thus, in the technical solution that combines the first air guide structure 110 and the second air guide structure 210, it can prevent the airflow from generating eddies and turbulent flows in the air duct 500 that are likely to cause unstable air outlet and abnormal noise, thereby reducing the Wind noise and improved wind sound quality have achieved the effect of improving user comfort.

It is worth mentioning that the inner surface of the first volute 100 may be provided with a plurality of first air guiding structures 110 , and of course the inner surface of the second volute 200 may also be provided with a plurality of second air guiding structures 210 . Wherein the first air guiding structures 110 are sequentially spaced apart along the air outlet direction of the air duct 500, and the second air guiding structures 210 are sequentially spaced along the air outlet direction of the air duct 500, and the more finely distributed air guiding structures can achieve fine-tuning The purpose of the airflow direction is to have a better effect on the whole, so that the airflow is stable, the noise is small, and the sound quality of the airflow is good. However, too many air guide structures should not be provided, so as not to increase the wind resistance of the air duct 500. At the same time, the protrusion height of the air guide structure should also be limited. Parameter design such as air volume is not listed here.

Further, the inner surfaces defining the air passage 500 in the first volute 100 and the second volute 200 are planes, and the inner surface defining the air passage 500 in the first volute 100 and the outer contour formed when the cross-flow fan wheel 400 rotates tangent, thereby reducing the momentum loss caused by the airflow hitting the inner surface of the first volute 100. In addition, the part of the inner surface of the first volute 100 close to the cross-flow fan wheel 400 can also form an involute shape to The air volume of the air duct 500 is increased, and the noise can also be reduced. Preferably, the inner surface defining the air channel 500 in the first volute 100 is parallel to the inner surface defining the air channel 500 in the second volute 200, this type of air channel structure can significantly reduce noise and improve user comfort sex.

According to the through-flow air duct assembly of the embodiment of the present utility model, the air guide structure extending along the vertical direction is arranged in the air duct 500 to adjust the direction of the air flow through the air duct and prevent the air flow from being easily generated in the air duct 500. The vortex and turbulent flow that cause unstable air outlet and abnormal sound, thereby reducing the noise of the air outlet, improving the sound quality of the air outlet, and achieving the effect of improving the comfort of the user.

The utility model also provides a vertical air conditioner indoor unit. In one embodiment, the vertical air conditioner indoor unit includes a cross-flow air duct assembly, and a set of cross-flow air duct assemblies can be provided, or two sets of cross-flow air duct assemblies can be provided. When two sets of cross-flow air duct assemblies are provided, the indoor unit of the vertical air conditioner can form two air outlets, which can realize multi-directional air supply, and the air supply coverage is large.

The embodiment of the indoor unit of the vertical air conditioner includes the technical solutions of all the embodiments of the above-mentioned cross-flow air duct assembly, and the technical effects achieved are also completely the same, which will not be repeated here.

The above are only preferred embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process conversion made by using the description of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are all included in the scope of patent protection of the utility model in the same way.

Claims (9)

1. A cross-flow air duct assembly, comprising a first volute and a second volute combined to form an air duct that guides the air flow, characterized in that the first volute and/or the second volute At least one inwardly protruding air guide structure is provided on the inner surface defining the air channel, and the air guide structure extends vertically as a whole. 2. The cross-flow air duct assembly according to claim 1, characterized in that, the inner surfaces of the first volute and the second volute are respectively provided with one said air guiding structure, and the first volute The air guiding structure of the second volute is spaced apart from the air guiding structure of the second volute by a given distance in the air outlet direction of the air channel. 3. The cross-flow air duct assembly according to claim 1, characterized in that, the inner surfaces of the first volute and the second volute are respectively provided with a plurality of the air guiding structures, and the guiding structures on each side The wind structures are spaced apart along the wind outlet direction of the air duct. 4. The through-flow air duct assembly according to claim 1, 2 or 3, wherein the cross-section of the air guide structure of the first volute is triangular, trapezoidal or arc-shaped. 5. The cross-flow air duct assembly according to claim 1, 2 or 3, characterized in that, the air guide structure of the second volute is in the shape of a flat plate, and faces the inner surface of the second volute toward the The air inlet of the air duct is inclined. 6. The cross-flow air duct assembly according to claim 1, characterized in that, the cross-flow air duct assembly further comprises a cross-flow wind wheel and is installed above or below the cross-flow wind wheel to control the rotation of the cross-flow wind wheel The motor, the cross-flow wind wheel is placed vertically. 7. The cross-flow air duct assembly according to claim 6, wherein the inner surfaces of the first volute and the second volute defining the air duct are planes, and the first volute The inner surface defining the air passage is tangent to the outer contour formed when the cross-flow rotor rotates. 8. The through-flow air duct assembly according to claim 7, wherein the inner surface of the first volute defining the air duct is the same as the inner surface of the second volute defining the air duct parallel. 9. A vertical air conditioner indoor unit, characterized in that it comprises the cross-flow air duct assembly according to any one of claims 1-8.