Ducted air conditioner and control method

Abstract

The invention discloses a duct type air conditioner and a control method, the duct type air conditioner comprises a fan cavity and an air return cover plate, an air inlet is formed in one side of the fan cavity and used for air return through the air inlet, and a fan used for air return is arranged in the fan cavity; the air return cover plate communicates with the fan cavity through an auxiliary air return through hole and is used for assisting the fan cavity in air return through the auxiliary air return through hole, so that one side of the fan cavity returns air through the air inlet, the other side of the fan cavity assists air return through the auxiliary air return through hole, and bidirectional air return is achieved. One side of the fan cavity returns air through the air inlet, the other side of the fan cavity assists in air return through the auxiliary air return through hole, bidirectional air return is achieved, the air return area is greatly increased, the air return amount is increased, the air return requirements in different scenes are better met, meanwhile, the rotating speed of the fan is prevented from being too high by increasing the air return amount, the durability and operation stability of the fan are improved, and the service life of the fan is prolonged. The equipment noise is reduced, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a ducted air conditioner and a control method. BACKGROUND

[0002] The ducted air conditioner, also known as a hidden air conditioner, is usually installed by being hoisted on the ceiling and is used for air delivery. At present, the ducted air conditioners in the industry are mostly single-side pipe layout, and the shell of the ducted air conditioner is generally a regular cuboid, which is mainly composed of sheet metal parts. The bending strength of the long strip plate shell is weak, and the middle part is prone to collapse.

[0003] When the ducted air conditioner is working, there are mainly two return air modes, one is rear return air, and the other is lower return air. However, both of them return air through a single air inlet, and the return air area is small. Therefore, when the air volume does not meet the demand, the air conditioning unit generally increases the fan speed to meet the indoor air volume demand. However, when the indoor temperature is too high or too low, rapid cooling or heating is required. In order to achieve rapid temperature adjustment, the demand for output air volume is high. However, the return air area is difficult to meet the demand through a single air inlet, and the fan speed can only be maximized to meet the air volume demand, which is easy to cause equipment damage, high energy consumption, and high fan noise, thereby bringing poor user experience. SUMMARY

[0004] In order to solve the problem that the air volume demand is difficult to meet in the prior art, the present application provides a ducted air conditioner and a control method.

[0005] The present application adopts the following technical solutions.

[0006] The present application discloses a ducted air conditioner, which comprises a fan cavity and a return air cover plate,

[0007] One side of the fan cavity is an air inlet for returning air through the air inlet, and the fan cavity is provided with a fan for returning air;

[0008] The return air cover plate is communicated with the fan cavity through an auxiliary return air through hole, and is used for assisting the fan cavity to return air through the auxiliary return air through hole, so that one side of the fan cavity returns air through the air inlet, and the other side returns air through the auxiliary return air through hole, thereby realizing bidirectional return air.

[0009] Preferably, the ducted air conditioner further comprises a shell, one side of the shell is the fan cavity, and the other side is a heat exchange cavity. The return air cover plate is arranged between the fan cavity and the heat exchange cavity.

[0010] Preferably, the return air cover plate comprises a first side wall, a second side wall and a third side wall. One side of the second side wall is connected with the side wall of the heat exchange cavity through the first side wall, and the other side is provided with the third side wall, so that the return air cover plate forms a C-shaped structure.

[0011] Preferably, the return air cover further includes a fourth sidewall, one side of which is connected to the third sidewall and the other side of which is connected to the sidewall of the fan cavity, and the third sidewall is provided with a plurality of auxiliary return air passages.

[0012] Preferably, the return air cover further includes a reinforcing fold, and the return air cover is connected to the housing through the reinforcing fold.

[0013] A second aspect of the present invention discloses a control method for the aforementioned duct machine, comprising:

[0014] Start the fan to allow air to return through the fan chamber;

[0015] The fan cavity returns air through the air inlet on one side;

[0016] On the other side, auxiliary return air is assisted through the auxiliary return air vent to achieve bidirectional return air.

[0017] A third aspect of the present invention discloses an air conditioner, including the aforementioned ducted air conditioner.

[0018] The beneficial effects of this invention are that, compared with the prior art,

[0019] The present invention provides bidirectional air return through an air inlet on one side of the fan cavity and an auxiliary air return through an auxiliary air return throughlet on the other side, which greatly increases the air return area and air return volume, better meets the air return needs in different scenarios, improves heat exchange efficiency, and at the same time avoids excessive fan speed by increasing air return volume, thereby improving the fan's durability and operational stability, reducing equipment noise, and improving the user experience.

[0020] The return air cover of the present invention is disposed between the fan cavity and the heat exchange cavity, which on the one hand increases the return air volume of the fan cavity, and on the other hand avoids the loss of airflow in the heat exchange cavity, which would lead to a decrease in heat exchange efficiency.

[0021] The return air cover of the present invention forms a C-shaped structure by connecting the first, second and third side walls, which improves the bending strength, transportation stability and resistance to deformation of the shell, and effectively prevents the middle of the shell from collapsing.

[0022] This invention connects the auxiliary return air passage on the third side wall to the fan cavity, enabling auxiliary return air to be assisted when the fan returns air, thereby increasing the return air area, which in turn reduces the fan speed, reduces noise, and improves user comfort. At the same time, because the auxiliary return air passage is only provided on the third side wall, the airflow in the heat exchange cavity will not be lost, which increases the return air volume while ensuring heat exchange efficiency.

[0023] The return air cover of the present invention improves the bending strength and overall strength of the shell by strengthening the connection between the folded edge and the shell, and improves the connection stability between the return air cover and the shell. Attached Figure Description

[0024] Figure 1 This is a front view structural diagram of the duct unit of the present invention;

[0025] Figure 2 This is a rear view structural diagram of the ductwork unit of the present invention;

[0026] Figure 3 This is a structural diagram of the return air cover of the present invention;

[0027] Figure 4 This is a side view of the return air cover of the present invention;

[0028] In the diagram: 1. Shell; 2. Fan; 3. Return air cover; 4. First side wall; 5. Second side wall; 6. Third side wall; 7. Fourth side wall; 8. Reinforcing fold; 9. Side plate; 10. Heat exchange plate; 11. Air outlet; 12. Air inlet; 13. Pipe cavity; 14. Return air plate; 15. Auxiliary return air passage. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0030] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] like Figures 1-4 As shown, Embodiment 1 of the present invention discloses a ducted air conditioner, comprising: a fan chamber, a heat exchange chamber, and a return air cover 3.

[0032] An air inlet 12 is provided on one side of the fan cavity for returning air through the air inlet 12, and a fan 2 for returning air is provided inside the fan cavity;

[0033] The heat exchange chamber is used to exchange heat with the airflow and exhaust air through the air outlet 11;

[0034] The return air cover 3 is connected to the fan cavity through the auxiliary return air ...

[0035] The present invention provides bidirectional return air by means of an air inlet 12 on one side of the fan cavity and an auxiliary return air throughlet 15 on the other side, which greatly increases the return air area and the return air volume, better meets the return air requirements in different scenarios, improves heat exchange efficiency, and avoids excessive fan speed by increasing the return air volume, thereby improving the durability and operational stability of the fan, reducing equipment noise, and improving the user experience.

[0036] like Figure 1 and Figure 2 As shown, the ducted air conditioner also includes a housing 1, which includes a side plate 9, a heat exchange plate 10, and a return air plate 14. The heat exchange plate 10 and the return air plate 14 are connected on the left and right sides by the side plate 9, and on opposite sides by a return air cover 3. The housing 1 has a heat exchange chamber on the side corresponding to the heat exchange plate 10 and a fan chamber on the side corresponding to the return air plate 14. The return air cover 3 is disposed between the fan chamber and the heat exchange chamber. The fan chamber has an air inlet 12 on one side and an air outlet 11 on the other side of the heat exchange chamber.

[0037] Preferably, but not limitingly, the heat exchange plate 10 and the return air plate 14 can be disposed at the bottom of the housing 1, and the return air cover plate 3 is also disposed at the bottom of the housing 1.

[0038] The return air cover 3 of the present invention is disposed between the fan cavity and the heat exchange cavity, which on the one hand increases the return air volume of the fan cavity, and on the other hand avoids the loss of airflow in the heat exchange cavity, which would lead to a decrease in heat exchange efficiency.

[0039] The return air cover 3 includes a first side wall 4, a second side wall 5 and a third side wall 6. One side of the second side wall 5 is connected to the side wall of the heat exchange chamber through the first side wall 4, and the other side is provided with the third side wall 6, so that the return air cover 3 forms a C-shaped structure, thereby forming a pipe cavity 13 inside.

[0040] The return air cover 3 of the present invention forms a C-shaped structure by connecting the first, second and third side walls, which improves the bending strength, transportation stability and resistance to deformation of the shell 1, effectively prevents the middle of the shell 1 from collapsing, and at the same time, the passage of the duct 13 is also conducive to the smooth return air.

[0041] The return air cover 3 also includes a fourth side wall 7, one side of which is connected to the third side wall 6 and the other side is connected to the side wall of the fan cavity. The third side wall 6 is provided with a plurality of auxiliary return air passages 15.

[0042] Preferably, but not limitingly, the auxiliary return air vent 15 can be honeycomb-shaped or circular, with a diameter of three to four millimeters, and multiple auxiliary return air vents 15 can be arranged side by side or staggered along the length direction.

[0043] The present invention connects the auxiliary return air passage 15 on the third side wall 6 to the fan cavity, so that when the fan returns air, it can assist in the return air through the auxiliary return air passage 15, thereby increasing the return air area, which can reduce the fan speed, reduce noise, and improve user comfort. At the same time, since the auxiliary return air passage 15 is only provided on the third side wall 6, the airflow in the heat exchange cavity will not be lost, which increases the return air volume while ensuring heat exchange efficiency.

[0044] like Figure 4 As shown, the return air cover 3 further includes a reinforcing fold 8, and the return air cover 3 is connected to the housing 1 through the reinforcing fold 8.

[0045] The return air cover 3 can be provided with a reinforcing fold 8 on any side wall, and the reinforcing fold 8 is connected to the side plate 9 on the housing 1.

[0046] The return air cover 3 of the present invention is connected to the housing 1 by strengthening the folded edge 8, which further improves the bending strength and overall strength of the housing 1 and improves the connection stability between the return air cover 3 and the housing 1.

[0047] Embodiment 2 of the present invention discloses a control method for the aforementioned duct machine, comprising:

[0048] Start the fan 2 to allow air to return through the fan chamber;

[0049] The fan cavity returns air through the air inlet 12 on one side and through the auxiliary return air through the auxiliary return air throughlet 16 on the other side, thus achieving bidirectional return air.

[0050] The airflow in the fan cavity flows to the heat exchange cavity after passing through the return air of fan 2;

[0051] The airflow is discharged from the air outlet 11 after heat exchange in the heat exchange chamber.

[0052] Embodiment 3 of the present invention discloses an air conditioner, including the aforementioned ducted air conditioner.

[0053] The beneficial effects of this invention are that, compared with the prior art,

[0054] The present invention provides bidirectional air return through an air inlet on one side of the fan cavity and an auxiliary air return through an auxiliary air return throughlet on the other side, which greatly increases the air return area and air return volume, better meets the air return needs in different scenarios, improves heat exchange efficiency, and at the same time avoids excessive fan speed by increasing air return volume, thereby improving the fan's durability and operational stability, reducing equipment noise, and improving the user experience.

[0055] The return air cover of the present invention is disposed between the fan cavity and the heat exchange cavity, which on the one hand increases the return air volume of the fan cavity, and on the other hand avoids the loss of airflow in the heat exchange cavity, which would lead to a decrease in heat exchange efficiency.

[0056] The return air cover of the present invention forms a C-shaped structure by connecting the first, second and third side walls, which improves the bending strength, transportation stability and resistance to deformation of the shell, and effectively prevents the middle of the shell from collapsing.

[0057] This invention connects the auxiliary return air passage on the third side wall to the fan cavity, enabling auxiliary return air to be assisted when the fan returns air, thereby increasing the return air area, which in turn reduces the fan speed, reduces noise, and improves user comfort. At the same time, because the auxiliary return air passage is only provided on the third side wall, the airflow in the heat exchange cavity will not be lost, which increases the return air volume while ensuring heat exchange efficiency.

[0058] The return air cover of the present invention improves the bending strength and overall strength of the shell by strengthening the connection between the folded edge and the shell, and improves the connection stability between the return air cover and the shell.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A ducted air conditioning unit, comprising: The fan cavity and return air cover (3) are characterized in that: One side of the fan cavity is an air inlet (12) for returning air through the air inlet (12), and a fan (2) for returning air is provided inside the fan cavity; The return air cover (3) is connected to the fan cavity through the auxiliary return air through hole (15) and is used to assist the return air of the fan cavity through the auxiliary return air through hole (15), so that the fan cavity returns air through the air inlet (12) on one side and through the auxiliary return air through hole (15) on the other side, thereby realizing bidirectional return air.

2. The duct air conditioner according to claim 1, characterized in that: The duct unit also includes: a housing (1), one side of which is the fan chamber and the other side is the heat exchange chamber, and the return air cover (3) is disposed between the fan chamber and the heat exchange chamber.

3. A duct air conditioner according to claim 2, characterized in that: The return air cover (3) includes a first sidewall (4), a second sidewall (5) and a third sidewall (6). One side of the second sidewall (5) is connected to the sidewall of the heat exchange chamber through the first sidewall (4), and the other side is provided with the third sidewall (6), so that the return air cover (3) forms a C-shaped structure.

4. A duct air conditioner according to claim 3, characterized in that: The return air cover (3) further includes a fourth side wall (7), one side of which is connected to the third side wall (6), and the other side is connected to the side wall of the fan cavity. The third side wall (6) is provided with a plurality of auxiliary return air through holes (15).

5. A duct air conditioner according to claim 2, characterized in that: The return air cover (3) further includes a reinforcing fold (8), and the return air cover (3) is connected to the housing (1) through the reinforcing fold (8).

6. A control method for a ducted air conditioner according to any one of claims 1 to 5, characterized in that: Start the fan (2) to allow the fan chamber to return air through the fan (2); The fan cavity returns air through the air inlet (12) on one side; On the other side, the auxiliary return air through the auxiliary return air through hole (15) is used to assist in the return air, thereby achieving bidirectional return air.

7. An air conditioner, characterized in that: Includes a duct machine as described in any one of claims 1 to 5.

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