Air duct structure and cabinet air conditioner

Abstract

The invention relates to the technical field of air conditioner accessory production, in particular to an air duct structure and a cabinet air conditioner. The air duct structure comprises an air duct shell, the air duct shell is provided with a first air duct opening and a second air duct opening, and the first air duct opening and the second air duct opening are located in the upper end area and the lower end area of an air outlet range correspondingly; the second air duct opening is provided with a switching mechanism, the switching mechanism adjusts the opening and closing degree of the second air duct opening, the air duct structure evenly supplies air to the whole space, the air outlet time can be effectively guaranteed, and the air duct structure has the advantage of being simple in structure.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioner accessory production, and in particular to an air duct structure and a cabinet air conditioner. Background Art

[0002] At present, the main air outlet modes of cabinet air conditioners in the market are: Figure 2 However, the current upper air outlet air outlet mode and the vertical middle air outlet air outlet both have shortcomings.

[0003] The disadvantage of the upper air outlet is that the foam volute is used as the static pressure generating area, and the motor and centrifugal fan blades generate static pressure. It draws air from the air inlets on the left and right sides of the lower part of the cabinet, passes through the volute and the upper shell of the cabinet, and then exhausts air from the upper air outlet. The height of the airflow from the ground is limited by the height of the internal unit, generally about 1.4 to 1.5 meters. The airflow blows directly on the human head and is difficult to reach the ground directly, resulting in a cold head and hot feet in summer and a hot head and cold feet in winter, affecting comfort.

[0004] The disadvantages of the vertical middle air outlet are: the injection molded parts air duct constitutes a static pressure generating area, and the motor and the crossflow fan blades generate static pressure. Air is sucked from the air inlet behind the cabinet. The air flow is discharged from the air outlet. The vertical height is relatively large, designed according to the cabinet height, generally about 1.0-1.2 meters, and the height from the ground is about 0.3-0.4 meters. The width of the air outlet is relatively narrow, generally 0.15-0.25m. The air flow blowing time is short, and it is difficult to cool down quickly; the air outlet is a certain distance from the ground, and there is a problem of cold head and hot feet, or hot head and cold feet.

[0005] These two air outlet methods still have the problem of being unable to effectively adjust indoor temperature distribution, resulting in reduced human comfort. Summary of the invention

[0006] The purpose of the present invention is to avoid the deficiencies in the prior art and provide an air duct structure, which can evenly supply air to the entire space and can effectively ensure the air outlet time, and has the advantage of a simple structure.

[0007] To achieve one of the above purposes, the present invention provides the following technical solutions:

[0008] Provided is an air duct structure, comprising:

[0009] The air duct housing has a first air duct opening and a second air duct opening.

[0010] A first air duct opening and a second air duct opening are reserved on the air duct housing. In actual production, more air duct openings can be reserved as needed.

[0011] The first air duct opening and the second air duct opening are respectively located in the upper end area and the lower end area of ​​the air outlet range;

[0012] The first air duct opening and the second air duct opening are arranged in the upper and lower areas of the air outlet range so that the upper and lower areas of the air outlet range are given priority to receive the wind, and the air outlets in the upper and lower areas move toward the middle area at the same time. At this time, the entire space can receive the wind evenly, avoiding the problem of traditional air outlet only from the upper end resulting in no wind at the lower end and uneven heating and cooling in the space.

[0013] Furthermore, since the first air duct opening and the second air duct opening are both located at the two ends, the first air duct opening and the second air duct opening can be opened larger, thereby ensuring a larger air volume and allowing the air outlet to cover a larger range, thereby improving human comfort.

[0014] The second air duct opening is provided with a switch mechanism, and the switch mechanism adjusts the opening and closing degree of the second air duct opening.

[0015] The function of the switch structure is to control whether the second air duct opening is open. When only the first air duct opening is needed, the second air duct opening can be closed by the switch structure shown to ensure the air volume of the first air duct opening. When the first air duct opening and the second air duct opening are needed, the second air duct opening can be opened by the switch structure so that both the first air duct opening and the second air duct opening can discharge air, making the air flow of the entire space uniform. When a large air volume is required at the first air duct opening and a small air volume is required at the second air duct opening, the air outlet area of ​​the second air duct opening can be reduced by the switch structure to adjust the air volume on demand and meet different heating and cooling requirements.

[0016] In some embodiments, the air duct housing is configured as a volute housing, and two ends of the volute housing extend to form an upper end channel and a lower end channel.

[0017] The first air duct opening and the second air duct opening are respectively located at the outlet of the upper end channel and the outlet of the lower end channel of the volute casing.

[0018] The volute shell can effectively reduce the blowing force of direct wind and improve comfort.

[0019] In some embodiments, a centrifugal fan is provided in the middle of the volute casing, and the upper end channel and the lower end channel are respectively connected to the air outlet surface of the centrifugal fan.

[0020] The centrifugal fan is driven to discharge air by a motor. Since the centrifugal fan is arranged in the middle of the volute casing and the upper end channel and the lower end channel are respectively connected to the air outlet surface of the centrifugal fan, only one motor and one centrifugal fan are needed to drive the air outlet of all the first air duct openings and the second air duct openings, which has the advantages of simple structure and low cost.

[0021] In some embodiments, the switch mechanism includes a closing plate assembly, which is disposed in the lower end channel and is connected to a driving assembly, and the driving assembly drives the closing plate assembly to swing, and the swinging angle of the closing plate assembly controls the opening and closing degree of the second air duct.

[0022] The closing plate assembly is a plate structure. After the closing plate assembly is set in the lower end channel, the area of ​​the channel covered by the closing plate assembly can be adjusted by adjusting the angle between the closing plate assembly and the channel cross section, thereby adjusting the opening and closing degree of the lower end channel. Therefore, the closing plate assembly is connected through the driving assembly, thereby driving the closing plate assembly to swing, thereby controlling the opening and closing degree of the second air duct.

[0023] In some embodiments, the driving assembly includes a motor, a first gear and a second gear, the rotating shaft of the motor drives the first gear, the first gear is meshed with the second gear, the second gear is connected to a rotating shaft, a fixing rod is provided on one side of the second gear, and the fixing rod is fixedly connected to the side edge of the closing plate assembly.

[0024] When in use, the motor shaft drives the first gear to rotate, the first gear in turn drives the second gear to rotate, and the second gear drives the closing assembly to swing around the shaft through the fixed rod. When the lower end channel needs to be closed, the second gear rotates in one direction to drive the closing plate assembly to close the lower end channel, and when the lower end channel needs to be opened, the second gear rotates in the opposite direction to drive the closing plate assembly to open the lower end channel.

[0025] In some embodiments, the second gear is a sector gear, and the rotating shaft is disposed at the center point of the sector gear.

[0026] By configuring the second gear as a sector gear, the swing amplitude of the closing component can be effectively limited, thereby avoiding the problem of excessive swing causing loud noise in the channel.

[0027] In some embodiments, the closed panel assembly includes a frame and a panel body, the panel body is assembled in the frame, the edge of the panel body is aligned with the inner wall of the frame, the outer wall surface of the frame slides along the inner wall of the air duct shell, and the fixing rod is fixedly connected to the edge of the frame.

[0028] The purpose of dividing the closed plate assembly shown into a frame and a plate body is that the frame will rub against the air duct shell and is easily scrapped, so a separate frame is provided so that the frame can be replaced separately, thereby reducing the cost of replacing parts. At the same time, the width of the frame can be increased separately, while the thickness of the plate body can be reduced, thereby reducing the weight of the entire closed plate assembly.

[0029] In some embodiments, a slide groove is provided on the inner side wall of the air duct housing, and the corner end of the outer side wall of the frame slides in the slide groove.

[0030] A slide groove is provided on the air duct housing to facilitate the closure plate assembly to slide stably in the air duct housing. More specifically, the outer wall corner of the frame is placed on the slide groove to facilitate stabilizing the closure plate assembly. The slide groove is in an arc shape.

[0031] Beneficial effects of an air duct structure of the present invention:

[0032] (1) The air duct structure of the present invention has two air duct openings, the first air duct opening and the second air duct opening are respectively located in the upper end area and the lower end area of ​​the air outlet range, so that the air volume is evenly distributed in the upper end area and the lower end area of ​​the space through the air duct opening, thereby avoiding the problem of uneven wind in the space; and, because the air duct opening can be opened in a larger range, the wind that can be blown out covers a wide range, and there is no need to quickly change the air outlet direction. The air outlet volume and air outlet time are stable, thereby improving the cooling and heating speeds and ensuring human comfort.

[0033] (2) The air duct structure of the present invention has a switch mechanism for adjusting the opening and closing degree of the second air duct opening. When the first air duct requires a large air volume and the second air duct requires a small air volume, the opening and closing degree of the second air duct opening can be controlled by adjusting the switch mechanism, so that more air can be discharged from the first air duct opening, so that the air volume in the spatial area can be effectively adjusted, and the adaptability is stronger.

[0034] To achieve the second objective above, the present invention provides the following technical solutions:

[0035] A cabinet air conditioner is provided, comprising a cabinet, wherein the cabinet is provided with the above-mentioned air duct structure, wherein the upper end and the lower end of the cabinet are respectively provided with an upper end air outlet and a lower end air outlet, wherein the upper end air outlet and the lower end air outlet are distributed on the machine surface of the cabinet,

[0036] The first air duct opening and the second air duct opening are connected to the upper air outlet and the lower air outlet respectively.

[0037] Providing air outlets at the upper and lower ends of the cabinet air conditioner can effectively improve the experience. Moreover, since the air outlets at the upper and lower ends can be opened according to actual needs, the air volume is guaranteed.

[0038] In some embodiments, the lower air outlet is less than 0.1 m from the ground. The lower air outlet is made as close to the ground as possible to improve the comfort of human feet.

[0039] The beneficial effects of the cabinet air conditioner of the present invention are as follows:

[0040] The cabinet air conditioner of the present invention has an upper air outlet and a lower air outlet located at the upper and lower ends on the cabinet surface, so that an air duct structure with double air duct openings is connected to the upper air outlet and the lower air outlet, so that air can be discharged from the upper and lower ends of the entire cabinet air conditioner, thereby improving the comfort of the cabinet air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a first visual diagram of the air duct structure of the embodiment.

[0042] Figure 2 is a second visual diagram of the air duct structure of the embodiment.

[0043] Figure 3 is a third visual diagram of the air duct structure of the embodiment.

[0044] Figure 4 Schematic diagram of the decomposition of the air duct structure of the embodiment.

[0045] Figure 5 Schematic diagram of the structure of the switch mechanism of the air duct structure of the embodiment.

[0046] Figure 6 It is a partial enlarged structural schematic diagram of the switch mechanism of the air duct structure of the embodiment.

[0047] Reference numerals

[0048] 1. Air duct housing; 2. First air duct opening; 3. Second air duct opening; 4. Switch mechanism; 41. Closing plate assembly; 42. Driving assembly; 5. Upper end channel; 6. Lower end channel; 7. Centrifugal fan; 8. Motor; 9. First gear; 10. Second gear; 11. Rotating shaft; 12. Fixed rod; 13. Frame; 14. Plate; 15. Slide; 16. First volute member; 17. Second volute member; 18. Centrifuge motor. DETAILED DESCRIPTION

[0049] The following 13 pages will describe the preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0050] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" used in the present invention and the appended claims are intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0051] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0052] At present, there are two types of air outlets used by mainstream cabinet air conditioners in the market: 1. Air outlet from the upper air outlet; 2. Air outlet from the vertical middle air outlet. The former air duct design uses the foam volute as the static pressure generating area, generates static pressure through the motor and centrifugal fan blades, draws air from the air inlets on the left and right sides of the lower part of the cabinet, and exhausts air from the upper air outlet after passing through the volute and the upper shell of the cabinet. The height of the air flow from the ground in this air outlet method is limited by the height of the indoor unit, and is generally about 1.4 to 1.5 meters above the ground. When using the air conditioner, the air flow often blows directly on the human head, and it is difficult to reach the indoor floor directly. In summer, the body will feel cold in the head and hot in the feet, and in winter, the head will be hot and the feet will be cold, which reduces the comfort of the human body. The latter air duct design is that the injection molded air duct forms a static pressure generating area, the motor and the cross-flow fan blades generate static pressure, draw air from the air inlet behind the cabinet, and discharge the air flow from the outlet. Because it is a vertical narrow air outlet, the vertical height of the airflow is relatively large. It is designed according to the height of the cabinet, generally about 1.0 to 1.2 meters, and the height from the ground is about 0.3 to 0.4 meters. However, this type of air outlet will have the problem of narrow airflow width, which is generally 0.15 to 0.25 meters. The human body will feel that the time when the air flow blows over the body is very short, and it is difficult to cool down quickly. At the same time, since the air outlet is a long distance from the ground, there will still be problems such as cold head and hot feet, or hot head and cold feet. In this regard, the following content is disclosed.

[0053] Example 1

[0054] This embodiment discloses an air duct structure, such as Figure 1 to Figure 6 As shown, including:

[0055] The air duct housing 1 is provided with a first air duct opening 2 and a second air duct opening 3.

[0056] A first air duct opening 2 and a second air duct opening 3 are reserved on the air duct housing 1. In actual production, more air duct openings can be reserved as needed.

[0057] The first air duct opening 2 and the second air duct opening 3 are respectively located in the upper end area and the lower end area of ​​the air outlet range;

[0058] The first air duct opening 2 and the second air duct opening 3 are arranged in the upper and lower areas of the air outlet range so that the upper and lower areas of the air outlet range are given priority to receive the wind, and the air outlets in the upper and lower areas move toward the middle area at the same time. At this time, the entire space can receive the wind evenly, avoiding the problem of traditional air outlet only from the upper end resulting in no wind at the lower end and uneven heating and cooling in the space.

[0059] In order to realize that the first air duct opening 2 and the second air duct opening 3 are arranged in the upper end area and the lower end area of ​​the air outlet range, so that the upper end area and the lower end area of ​​the air outlet range are preferentially blown, and the air outlets of the upper end area and the lower end area are simultaneously moved to the middle area, so as to realize that the whole space is blown evenly, and avoid the problem that the conventional method of only blowing out air from the upper end leads to no wind at the lower end and uneven heating and cooling in the space, the following specific implementation methods can be adopted:

[0060] Specifically, a first air duct opening 2 is reserved in the upper end area of ​​the air duct housing 1 for the upper end area to receive wind first. A second air duct opening 3 is reserved in the lower end area of ​​the air duct housing 1 for the lower end area to receive wind first. As needed, an additional air duct opening can be reserved in the middle of the air duct housing 1 to enhance the air flow in the middle area. The shape and size of the air duct opening are designed to ensure that the air flow can effectively cover the upper and lower end areas. Diffusers or grille air vents can be used, which can form attached jets, which can meet the use requirements and are more beautiful for air-conditioned areas with low indoor height. The air volume can be adjusted in conjunction with a split multi-leaf regulating valve. The blades of the air vent can be adjusted arbitrarily within the range of 0-90 degrees, thereby obtaining different air supply distances and diffusion angles. Through the above-mentioned implementation, it is possible to effectively achieve the upper and lower end areas of the air outlet range to receive wind first, while promoting the air outlet of the upper end area and the air outlet of the lower end area to move to the middle area, so that the entire space is evenly winded and the comfort of air conditioning is improved.

[0061] Furthermore, since the first air duct opening 2 and the second air duct opening 3 are both located at the two ends, the first air duct opening 2 and the second air duct opening 3 can be opened larger, thereby ensuring a larger air volume and allowing the air outlet to cover a larger range, thereby improving human comfort.

[0062] Specifically, in order to respectively set a larger first air duct opening 2 and a larger second air duct opening 3 at the upper end area and the lower end area of ​​the air duct housing 1 to ensure a larger air volume and coverage range and improve the comfort of people, the first air duct opening 2 and the second air duct opening 3 are designed to be large enough according to the structure and space of the air duct housing 1 to ensure the air volume and coverage range. Grille or diffuser air ducts can be used, which can effectively disperse the air flow, reduce the direct blowing feeling, and improve the comfort.

[0063] The first air duct opening 2 (upper end area) and the second air duct opening 3 (lower end area) should be located at the upper end and lower end of the air duct housing 1, respectively, to achieve the effect of preferential wind reception. In this way, the air outlets of the upper end area and the lower end area can move to the middle area at the same time, so that the entire space can be evenly winded.

[0064] The second air duct opening 3 is provided with a switch mechanism 4, and the switch mechanism 4 adjusts the opening and closing degree of the second air duct opening 3.

[0065] The function of the switch structure is to control whether the second air duct opening 3 is open. When only the first air duct opening 2 is needed, the second air duct opening 3 can be closed by the switch structure shown to ensure the air volume of the first air duct opening 2. When the first air duct opening 2 and the second air duct opening 3 are needed, the second air duct opening 3 can be opened by the switch structure so that both the first air duct opening 2 and the second air duct opening 3 can discharge air, so that the air volume of the entire space is uniform. When a large air volume is required for the first air duct opening 2 and a small air volume for the second air duct opening 3, the air outlet area of ​​the second air duct opening 3 can be reduced by the switch structure to adjust the air volume on demand to meet different heating and cooling requirements.

[0066] Furthermore, an air volume adjustment indicator, such as a dial or an LED display screen, is provided on the switch structure to display the current opening and closing degree of the damper and the air volume, so as to facilitate intuitive operation by the user.

[0067] Through the above implementation, a switch structure can be designed to control whether the second air duct opening 3 is open, so as to adjust the air volume on demand, meet different cooling and heating requirements, and improve the air outlet uniformity and comfort of the entire space.

[0068] In this embodiment, the air duct housing 1 is constructed as a volute housing, and the two ends of the volute extend to form an upper end channel 5 and a lower end channel 6.

[0069] The first air duct opening 2 and the second air duct opening 3 are respectively located at the outlet of the upper end channel 5 and the outlet of the lower end channel 6 of the volute casing.

[0070] The volute shell can effectively reduce the blowing force of direct wind and improve comfort.

[0071] Specifically, the volute can be designed as an eccentric structure, which means that the conversion of part of the kinetic energy to the head is completed inside the shell. The cross-sectional area of ​​the volute should be gradually increased, and the diffusion angle should be between 7° and 13° to meet the needs of different air volumes.

[0072] The two ends of the volute housing extend to form an upper channel 5 and a lower channel 6, which are respectively connected to the first air duct opening 2 and the second air duct opening 3. The design of the channel should ensure smooth airflow and reduce pressure drop and noise.

[0073] The first air duct opening 2 is located at the outlet of the upper channel 5 of the volute casing, and the second air duct opening 3 is located at the outlet of the lower channel 6. Such a layout allows the upper and lower areas of the wind outlet range to receive wind first, while promoting the air outlet of the upper area and the air outlet of the lower area to move to the middle area, so as to achieve uniform wind reception in the entire space.

[0074] In this embodiment, a centrifugal fan 7 is provided in the middle of the volute casing, and the upper end channel 5 and the lower end channel 6 are respectively connected to the air outlet surfaces of the centrifugal fan 7 .

[0075] The centrifugal fan 7 is driven to discharge air through a centrifugal motor 18. Since the centrifugal fan 7 is arranged in the middle of the volute casing and the upper end channel 5 and the lower end channel 6 are respectively connected to the air outlet surface of the centrifugal fan 7, only one centrifugal motor 18 and one centrifugal fan 7 are needed to drive the air outlet of all the first air duct openings 2 and the second air duct openings 3, which has the advantages of simple structure and low cost.

[0076] Specifically, the two ends of the volute casing extend to form an upper channel 5 and a lower channel 6. This design is conducive to the reasonable distribution and flow of airflow. The structure of the volute casing can be made into a sturdy and reliable casing through steel plates, which is divided into an integral type and a semi-open type, and the semi-open type is easy to maintain. The centrifugal fan 7 is positioned in the middle of the volute casing to ensure that the air outlet surface of the fan is connected to the upper channel 5 and the lower channel 6. In this way, only one centrifuge motor 18 and one centrifugal fan 7 are needed to drive the air outlet of all the first air duct openings 2 and the second air duct openings 3.

[0077] The centrifuge motor 18 drives the impeller of the centrifugal fan 7 to rotate through the shaft connection, and this connection mode is simple and has low cost. The centrifuge motor 18 can be externally arranged outside the fan exhaust cylinder and connected to the impeller of the fan through the shaft.

[0078] The first air duct opening 2 and the second air duct opening 3 are respectively located at the outlet of the upper end channel 5 and the outlet of the lower end channel 6 of the volute housing. Such a layout allows the upper end area and the lower end area to receive wind first, while promoting the air outlet of the upper end area and the air outlet of the lower end area to move to the middle area, so as to achieve uniform wind reception in the entire space.

[0079] By utilizing the shape of the volute casing and the action of centrifugal force, the gas is thrown out from around the impeller, and the velocity energy is converted into pressure energy through the volute casing, thereby achieving effective distribution of the airflow.

[0080] Through the above implementation, a centrifugal fan 7 system with simple structure and low cost can be constructed to achieve efficient air distribution and flow.

[0081] In this embodiment, the switch mechanism 4 includes a closing plate assembly 41, which is arranged in the lower end channel 6 and is connected to a driving assembly 42. The driving assembly 42 drives the closing plate assembly 41 to swing, and the swinging angle of the closing plate assembly 41 controls the opening and closing degree of the second air duct opening 3.

[0082] The closing plate assembly 41 is a plate structure. After the closing plate assembly 41 is set in the lower end channel 6, the area of ​​the channel covered by the closing plate assembly 41 can be adjusted by adjusting the angle between the closing plate assembly 41 and the channel cross section, thereby adjusting the opening and closing degree of the lower end channel 6. Therefore, the closing plate assembly 41 is connected through the driving assembly 42, thereby driving the closing plate assembly 41 to swing, thereby controlling the opening and closing degree of the second air duct opening 3.

[0083] Specifically, the closing plate assembly 41 is arranged at the rear end of the lower end channel 6, and its design allows the area of ​​the covered channel to be adjusted by adjusting the angle between the lower end channel 6 and the channel cross section. This adjustment can change the degree of opening and closing of the lower end channel 6, thereby controlling the flow of the airflow.

[0084] The driving assembly 42 is used to connect the closing plate assembly 41. By rotating the driving assembly 42, the closing plate assembly 41 can be driven to swing. This swing controls the area of ​​the passage covered by the closing plate assembly 41, thereby adjusting the opening and closing degree of the second air duct opening 3.

[0085] By precisely controlling the rotation of the drive assembly 42, it is possible to precisely adjust the position of the closing plate assembly 41. This control can be achieved by electric, pneumatic or manual means, depending on the application scenario and design requirements.

[0086] In order to achieve precise adjustment, it may be necessary to equip sensors and control systems to monitor the position of the closing plate assembly 41 and make fine adjustments as needed. This can be achieved through an automated control system to improve the response speed and accuracy of the adjustment.

[0087] Through the above-mentioned implementation, the closing plate assembly 41 can be effectively controlled by the driving assembly 42, thereby adjusting the opening and closing degree of the second air duct, thereby achieving precise control of the airflow.

[0088] In this embodiment, the driving assembly 42 includes a motor 8, a first gear 9 and a second gear 10. The rotating shaft 11 of the motor 8 drives the first gear 9. The first gear 9 is meshed with the second gear 10. The second gear 10 is connected to the rotating shaft 11. A fixing rod 12 is provided on one side of the second gear 10. The fixing rod 12 is fixedly connected to the side edge of the closing plate assembly 41.

[0089] When in use, the motor 8 rotates the shaft 11 to drive the first gear 9 to rotate, and the first gear 9 in turn drives the second gear 10 to rotate, and the second gear 10 drives the closing assembly to swing around the shaft 11 through the fixing rod 12. When the lower end channel 6 needs to be closed, the second gear 10 rotates in one direction to drive the closing plate assembly 41 to close the lower end channel 6, and when the lower end channel 6 needs to be opened, the second gear 10 rotates in the opposite direction to drive the closing plate assembly 41 to open the lower end channel 6.

[0090] Specifically, a suitable motor 8 is selected, whose rotating shaft 11 can provide sufficient torque to drive the entire gear system. The speed and torque of the motor 8 should be determined according to the weight of the closing plate assembly 41 and the required adjustment speed.

[0091] The first gear 9 is directly connected to the rotating shaft 11 of the motor 8 and is usually a driving gear.

[0092] The second gear 10 meshes with the first gear 9 as a driven gear. The rotating shaft 11 is the central axis around which the second gear 10 rotates, and the fixing rod 12 is a mechanical structure connecting the second gear 10 and the closing plate assembly 41. According to the required force and speed, a suitable gear ratio is designed. The gear ratio determines the rotation speed and torque of the second gear 10. The fixing rod 12 needs to be strong enough to convert the rotation of the second gear 10 into the swinging of the closing plate assembly 41. The swinging of the closing plate assembly 41 can be achieved by a hinge, a bearing or other swinging mechanism to ensure that the closing plate assembly 41 can swing flexibly and stably.

[0093] The start, stop and rotation direction of the motor 8 are controlled by a control system. This can be achieved by a simple switch, a timer or a more complex automated control system. In order to ensure that the closing plate assembly 41 reaches the correct position, a limit switch or position sensor can be installed to provide a feedback signal to the control system.

[0094] In this embodiment, the second gear 10 is a sector gear, and the rotating shaft 11 is disposed at the center point of the sector gear.

[0095] By configuring the second gear 10 as a sector gear, the swing amplitude of the closing assembly can be effectively limited, thereby avoiding the problem of excessive swing causing loud noise in the channel.

[0096] Specifically, the fan gear rotates around the rotating shaft 11, and the rotating shaft 11 is located at the center point of the fan gear. Such a design allows the edge of the fan gear to move along a circular path when it rotates, thereby driving the closing plate assembly 41 to swing. The rotating shaft 11 is fixed at the center of the fan gear as the center point of the fan gear rotation. The design of the rotating shaft 11 needs to ensure sufficient strength and rigidity to withstand the force generated by the fan gear when it rotates. The rotating shaft 11 of the motor 8 is directly or through a coupling connected to the first gear 9. The selection of the motor 8 should take into account the required torque and speed to ensure that the entire gear system can be driven. The first gear 9 is meshed with the second gear 10 (fan gear) to transmit the rotational power of the motor 8. The gear ratio of the first gear 9 and the second gear 10 should be adjusted according to the required force and speed to achieve precise control. The closing plate assembly 41 is connected to the edge of the fan gear through a fixed rod 12. When the fan gear rotates, the fixed rod 12 drives the closing plate assembly 41 to swing along the arc, thereby controlling the opening and closing of the lower end channel 6.

[0097] In this embodiment, the closed plate assembly 41 includes a frame 13 and a plate body 14, the plate body 14 is assembled in the frame 13, the edge of the plate body 14 is aligned with the inner wall of the frame 13, the outer wall surface of the frame 13 slides along the inner wall of the air duct shell 1, and the fixing rod 12 is fixedly connected to the edge of the frame 13.

[0098] The closed plate assembly 41 shown is divided into a frame 13 and a plate body 14. The frame 13 may rub against the air duct housing 1 and may be easily scrapped. Therefore, the frame 13 is provided separately so that the frame 13 can be replaced separately, thereby reducing the cost of replacing parts. At the same time, the width of the frame 13 can be increased separately, while the thickness of the plate body 14 can be reduced, thereby reducing the weight of the entire closed plate assembly 41.

[0099] Specifically, the frame 13 is easily worn out due to friction with the inner wall of the air duct housing 1. By separately providing the frame 13, only the frame 13 can be replaced without replacing the entire closing plate assembly 41, thereby reducing the cost of replacing parts.

[0100] The plate body 14 is assembled in the frame 13, and its edge is aligned with the inner side wall of the frame 13. Such a design allows the plate body 14 to be stably fixed in the frame 13, while reducing the thickness of the plate body 14 and reducing the weight of the entire closed plate assembly 41.

[0101] The outer wall of the frame 13 slides along the inner wall of the air duct housing 1. This sliding mechanism allows the closing plate assembly 41 to move flexibly in the air duct to control the opening and closing degree of the air duct.

[0102] The fixing rod 12 is fixedly connected to the edge of the frame 13 . This connection mode ensures that when the closing plate assembly 41 swings, the fixing rod 12 can stably transmit power to drive the closing plate assembly 41 .

[0103] In this embodiment, a slide groove 15 is provided on the inner side wall of the air duct housing 1 , and the corner end of the outer side wall of the frame 13 slides in the slide groove 15 .

[0104] A slide groove 15 is provided on the air duct housing 1 to facilitate the closure plate assembly 41 to slide stably in the air duct housing 1. More specifically, the outer wall corner of the frame 13 is on the slide groove 15, so that the closure plate assembly 41 can be more easily stabilized. The slide groove 15 is in an arc shape.

[0105] Specifically, the slide groove 15 is arc-shaped to adapt to the corner of the outer wall of the frame 13 of the closing plate assembly 41, which can reduce friction and make the closing plate assembly 41 slide more smoothly in the air duct housing 1. The slide groove 15 is set on the inner wall of the air duct housing 1 to ensure that the arc trajectory of the slide groove 15 matches the moving path of the closing plate assembly 41. The slide groove 15 can be a part of the air duct housing 1, or it can be an independent component fixed to the air duct housing 1 by welding, bolting, etc. The outer wall of the frame 13 of the closing plate assembly 41 is designed to fall on the slide groove 15, so that the corner of the frame 13 can slide stably along the slide groove 15. Such a design can easily stabilize the closing plate assembly 41 and reduce wear caused by friction.

[0106] Example 2

[0107] The cabinet air conditioner disclosed in this embodiment includes a cabinet, in which the air duct structure of Example 1 is provided, and the upper end and the lower end of the cabinet are respectively provided with an upper air outlet and a lower air outlet (not shown in the figure), and the upper air outlet and the lower air outlet are distributed on the machine surface of the cabinet, and the first air duct opening 2 and the second air duct opening 3 are respectively connected to the upper air outlet and the lower air outlet.

[0108] Providing air outlets at the upper and lower ends of the cabinet air conditioner can effectively improve the experience. Moreover, since the air outlets at the upper and lower ends can be opened according to actual needs, the air volume is guaranteed.

[0109] In this embodiment, the lower air outlet is less than 0.1 m from the ground, which can improve the comfort of human feet by making the lower air outlet close to the ground as much as possible.

[0110] Specifically, the upper air outlet is adapted to the upper structure of the cabinet air conditioner to ensure that the air outlet direction and air volume meet the design requirements. The upper air outlet can be designed as a grille type or a shutter type to control the air outlet direction and air volume. The lower air outlet is less than 0.1 meters from the ground to improve foot comfort. This design helps to directly deliver cold air to the area near the ground, increasing the comfort of the area.

[0111] The first air duct opening 2 connected to the upper air outlet should be designed to efficiently transport air to the upper area of ​​the air conditioner.

[0112] The second air duct opening 3 connected to the lower air outlet should be designed to deliver cold air directly to the ground to improve foot comfort. Ensure that air flows smoothly from the internal components of the air conditioner (such as the evaporator) to the upper and lower air outlets. The air duct should be of sufficient length and width to reduce resistance to air flow.

[0113] Regulation mechanism:

[0114] Design adjustable dampers or shutters to control the amount of air flowing through the upper and lower outlets. This allows the user to adjust the amount and direction of air as needed.

[0115] Through the above implementation, the cabinet air conditioner can effectively improve the user experience while ensuring the air volume and foot comfort. This design not only improves the practicality of the air conditioner, but also enhances its aesthetics and user satisfaction.

[0117] Currently, there are two types of air outlet methods used by mainstream cabinet air conditioners in the market: 1. Air outlet from the upper air outlet; 2. Air outlet from the vertical middle air outlet.

[0118] The former air duct design uses the foam volute as the static pressure generating area, and the motor + centrifugal fan blades generate static pressure, sucking air from the air inlets on the left and right sides of the lower part of the cabinet, and exhausting air from the upper air outlet after passing through the volute and the upper shell of the cabinet. The height of the airflow from the ground in this air outlet method is limited by the height of the indoor unit, and is generally about 1.4-1.5 meters from the ground. When using the air conditioner, the airflow often blows directly on the human head, and it is difficult to reach the indoor floor directly. In summer, the body will feel cold in the head and hot in the feet, and in winter, the head will be hot and the feet will be cold, which reduces the comfort of the human body.

[0119] The latter air duct design is that the injection molded air duct constitutes the static pressure generating area, the motor + crossflow fan blades generate static pressure, suck air from the air inlet behind the cabinet, and discharge the airflow from the air outlet. Because it is a vertical and narrow air outlet, the vertical height of the airflow is relatively large. It is designed according to the height of the cabinet, generally about 1.0-1.2 meters, and the height from the ground is about 0.3-0.4 meters. However, this type of air outlet will have the problem of narrow airflow width, and the width of the air outlet is generally 0.15-0.25 meters. The human body will feel that the time when the air flow blows over the body is very short, and it is difficult to cool down quickly. At the same time, due to the large distance between the air outlet and the ground, there will still be problems such as cold head and hot feet, or hot head and cold feet.

[0120] The above two air outlet modes lack the function of downward air outlet, which results in a lack of user experience. However, this patent proposes a dual-end air outlet air conditioning duct component, which designs a set of structural solutions. The air outlet mode is designed to discharge air at both ends at the same time, so that the air flow can reach the ground through the lower air outlet, and the lower air outlet can be opened and closed independently, solving the problem of users feeling cold head and hot feet, or hot head and cold feet, which can greatly enhance the user experience of our air conditioning products.

[0121] The above-mentioned cabinet air conditioner has a relatively simple structure and only uses one set of motor and centrifugal fan blades, without the need for multiple sets of duplicate systems; the whole machine has two air outlets, which can blow air at the same time, and the lower air outlet can also be closed separately; the lower air outlet is a short distance from the ground, which can solve the problem of poor leg experience for users.

[0122] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0123] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air duct structure, characterized in that: include: The air duct housing has a first air duct opening and a second air duct opening. The first air duct opening and the second air duct opening are respectively located in the upper end area and the lower end area of ​​the air outlet range; The second air duct opening is provided with a switch mechanism, and the switch mechanism adjusts the opening and closing degree of the second air duct opening.

2. The air duct structure according to claim 1, characterized in that: The air duct housing is constructed as a volute housing, and the two ends of the volute extend to form an upper end channel and a lower end channel. The first air duct opening and the second air duct opening are respectively located at the outlet of the upper end channel and the outlet of the lower end channel of the volute casing.

3. The air duct structure according to claim 2, characterized in that: A centrifugal fan is installed in the middle of the volute casing, and the upper end channel and the lower end channel are respectively connected to the air outlet surface of the centrifugal fan.

4. The air duct structure according to claim 1, characterized in that: The switch mechanism includes a closing plate assembly, which is arranged in the lower end channel and is connected to a driving assembly. The driving assembly drives the closing plate assembly to swing, and the swing angle of the closing plate assembly controls the opening and closing degree of the second air duct.

5. The air duct structure according to claim 4, characterized in that: The driving assembly includes a motor, a first gear and a second gear. The rotating shaft of the motor drives the first gear. The first gear is meshed with the second gear. The second gear is connected to a rotating shaft. A fixing rod is provided on one side of the second gear. The fixing rod is fixedly connected to the side edge of the closing plate assembly.

6. The air duct structure according to claim 5, characterized in that: The second gear is a sector gear, and the rotating shaft is arranged on the center point of the sector gear.

7. The air duct structure according to claim 5, characterized in that: The closed plate assembly includes a frame and a plate body, the plate body is assembled in the frame, the edge of the plate body is aligned with the inner wall of the frame, the outer wall surface of the frame slides along the inner wall of the air duct shell, and the fixing rod is fixedly connected to the edge of the frame.

8. The air duct structure according to claim 7, characterized in that: The inner side wall of the air duct housing is provided with a slide groove, and the corner end of the outer side wall of the frame slides in the slide groove.

9. A cabinet air conditioner, characterized in that: A cabinet is provided, wherein the cabinet is provided with the air duct structure according to any one of claims 1 to 8, wherein the upper end and the lower end of the cabinet are respectively provided with an upper air outlet and a lower air outlet, wherein the upper air outlet and the lower air outlet are distributed on the machine surface of the cabinet, The first air duct opening and the second air duct opening are connected to the upper air outlet and the lower air outlet respectively.

10. The cabinet air conditioner according to claim 9, characterized in that: The lower air outlet is less than 0.1m from the ground.

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