Air conditioner

Abstract

The present invention relates to the technical field of air conditioners, and particularly relates to an air conditioner. The air conditioner of the present invention includes: a main body having an opening at the top and an air outlet passage provided inside; and a wind guiding member disposed at the opening, the upper surface of the wind guiding member being located above the opening, a upper air outlet communicating with the air outlet passage being formed between the wind guiding member and the top end of the main body, and the upper edge of the upper air outlet being located inside the lower edge of the upper air outlet. Based on this, most of the air flow flowing out from the upper air outlet can flow obliquely upward, reducing the direct blowing on the human body, achieving a better effect of cold air not blowing on people, and thus effectively improving the comfort of using the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly relates to an air conditioner. Background Art

[0002] Currently, air conditioners have become essential appliances in household life. Moreover, with the improvement of living standards, higher requirements are put forward for the use comfort of air conditioners. Among them, cold air not blowing directly on people is an important aspect reflecting the use comfort of air conditioners.

[0003] However, the air conditioners in related technologies still cannot truly achieve cold air not blowing directly on people, which affects the use comfort. Summary of the Invention

[0004] One technical problem to be solved by the present invention is to improve the use comfort of air conditioners.

[0005] To solve the above technical problem, the present invention provides an air conditioner, which includes:

[0006] A main body with an opening at the top and an air outlet channel inside; and

[0007] A wind guiding component arranged at the opening, the upper surface of the wind guiding component is located above the opening, an upper air outlet communicating with the air outlet channel is formed between the wind guiding component and the top end of the main body, and the upper edge of the upper air outlet is located inside the lower edge of the upper air outlet.

[0008] In some embodiments, the horizontal distance d between the lowest point of the upper edge of the upper air outlet and the lowest point of the lower edge of the upper air outlet is greater than 0 mm and less than or equal to 50 mm.

[0009] In some embodiments, the horizontal distance d between the lowest point of the upper edge of the upper air outlet and the lowest point of the lower edge of the upper air outlet is 15 - 20 mm.

[0010] In some embodiments, the vertical distance b between the lowest point of the upper edge of the upper air outlet and the lowest point of the lower edge of the upper air outlet is 30 - 200 mm; and / or, the horizontal distance c between the projection of the lowest point of the upper edge of the upper air outlet on the horizontal plane where the lowest point of the lower edge of the upper air outlet is located and the wind guiding component is 50 - 200 mm.

[0011] In some embodiments, the vertical distance b between the lowest point of the upper edge of the upper air outlet and the lowest point of the lower edge of the upper air outlet is 60 - 120 mm; and / or, the horizontal distance c between the projection of the lowest point of the upper edge of the upper air outlet on the horizontal plane where the lowest point of the lower edge of the upper air outlet is located and the wind guiding component is 75 - 85 mm.

[0012] In some embodiments, the wind guiding component is adjustably arranged at the opening.

[0013] In some embodiments, the air guiding component is rotatably arranged and changes its position by rotating relative to the body.

[0014] In some embodiments, the circumferential angle of the upper air outlet is 180°.

[0015] In some embodiments, the height difference between the lowest point of the lower edge of the upper air outlet and the bottom end of the body is 175 cm.

[0016] In some embodiments, a lower air outlet communicating with the air outlet passage is further provided at the lower part of the body, and the air conditioner further includes a damper movably arranged on the body for opening or closing the lower air outlet.

[0017] In some embodiments, the damper is movably arranged up and down on the body to open or close the lower air outlet.

[0018] In some embodiments, the body includes a housing and a first blower. The opening is located at the top of the housing. The first blower is arranged in the housing, and the upper part of the first blower discharges air while the lower part is closed.

[0019] In some embodiments, the body further includes a second blower. The second blower is arranged in the housing and is located below the first blower, and both the upper and lower parts of the second blower discharge air.

[0020] By providing an upper air outlet at the top of the air conditioner and setting the upper edge of the upper air outlet inside the lower edge, most of the air flow flowing out of the upper air outlet can flow obliquely upward, reducing the direct blowing on the human body, achieving a better effect of not blowing cold air directly on people, and thus effectively improving the comfort of using the air conditioner.

[0021] Other features and advantages of the present invention will become clear by describing the exemplary embodiments of the present invention in detail with reference to the following drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a longitudinal sectional view of the air conditioner in some embodiments of the present invention.

[0024] Figure 2 For Figure 1 The schematic diagram of the air flow when the lower air outlet of the shown air conditioner is opened.

[0025] Figure 3 For Figure 1Schematic diagram of air flow when the lower air outlet of the shown air conditioner is closed.

[0026] Figure 4 is Figure 1 Schematic diagram of air flow at the upper outlet of the shown air conditioner.

[0027] Figure 5 is Figure 1 Three-dimensional schematic diagram of the shown air conditioner at the upper air outlet.

[0028] Figure 6 is Figure 1 Longitudinal sectional view of the shown air conditioner at the upper air outlet.

[0029] Figure 7 is Figure 1 Schematic diagram of the layout of the shown air conditioner in the test room.

[0030] Figure 8 is based on Figure 7 Cold air non-blowing air supply effect curve measured based on the shown layout method.

[0031] Figure 9 is based on Figure 7 Refrigeration long-distance air supply effect curve measured based on the shown layout method.

[0032] Figure 10 is based on Figure 7 Heating long-distance air supply effect curve measured based on the shown layout method.

[0033] Figure 11 is based on Figure 7 Refrigeration short-distance air supply effect curve measured based on the shown layout method.

[0034] Figure 12 is based on Figure 7 Heating short-distance air supply effect curve tested based on the shown layout method.

[0035] In the figure:

[0036] 10. Air conditioner;

[0037] 1. Body; 11. Housing; 12. First fan; 121. First motor; 122. First blade; 123. First wind deflector; 123a. First wind deflector part; 123b. Second wind deflector part; 13. Second fan; 131. Second motor; 132. Second blade; 133. Second wind deflector; 133a. Third wind deflector part; 14. Decorative panel; 15. Outer shell; 1a. Opening; 1b. Air outlet channel; 1c. Upper air outlet; 1d. Lower air outlet;

[0038] 2. Air guide component; 21. Cover body; 22. Air deflector;

[0039] 3. Driving mechanism;

[0040] 4. Air damper;

[0041] 5. Window; 6. Door. Detailed implementation manners

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the authorization specification.

[0044] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without further statement, the above terms have no special meanings and therefore cannot be construed as limiting the protection scope of the present invention.

[0045] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] After the air conditioner reaches a stable state during refrigeration, if the cold air blows directly on people, it will cause discomfort to the human body. When the cold air blows directly on people, it will also make people distracted and difficult to concentrate. Moreover, being in a state of direct cold air blowing for a long time is also likely to induce various diseases in the human body. Therefore, during the use of the air conditioner, it is hoped to reduce or even avoid the phenomenon of direct cold air blowing to provide a more comfortable environment for users.

[0047] However, in the related art, the effect of preventing the cold air of the air conditioner from blowing on people is still not ideal, which affects the comfort of using the air conditioner.

[0048] Taking a floor-standing air conditioner as an example. To improve the effect of preventing cold air from directly blowing on people, the applicant has proposed a floor-standing air conditioner with a wind guiding component provided at the top of the main body, and an upper air outlet is formed between the wind guiding component and the top end of the main body. When it is necessary to prevent cold air from directly blowing on people, the wind guiding component at the upper air outlet is adjusted to guide the cold air to flow upward in the room. Compared with the conventional air outlet mode of a vertical long strip-shaped air outlet, this air outlet mode can reduce the direct blowing of cold air to a certain extent. However, in actual application, it is found that there is still a certain problem of direct blowing of cold air in this floor-standing air conditioner. In particular, for people with a relatively high height, when they approach the air conditioner, they will still feel the cold air blowing on them.

[0049] Through research, it is found that the obstruction of the air flow by the wind guiding component is an important reason for the problem of direct blowing of cold air in this floor-standing air conditioner. Specifically, in the related art, the outer edge (i.e., the outer margin) of the wind guiding component located at the upper air outlet is wider than or flush with the outer edge of the top end of the main body in the horizontal direction. In this case, during the air outlet process, the wind guiding component will form a certain obstruction to the air flow, causing most of the air flow to impact on the side wall of the wind guiding component during the process of flowing to the upper air outlet, changing the flow direction, changing from upward flow to forward flow, resulting in that even if the wind guiding component is adjusted, there is still a relatively large amount of air flow flowing forward and directly blowing on the human body, which means that this floor-standing air conditioner is still an air conditioner with the front air outlet as the main air outlet mode.

[0050] Based on the above findings, the present invention improves the air conditioner structure to improve the use comfort of the air conditioner by further improving the effect of preventing cold air from directly blowing on people.

[0051] Figures 1 - 6 The structure of the air conditioner of the present invention is exemplarily shown.

[0052] Next, it will be first combined with Figures 1 - 6 to describe the structure of the air conditioner of the present invention.

[0053] For the convenience of description, the upper, lower, left, right, front and back directions are defined in the state when the air conditioner 10 is placed normally. Among them, the direction in which the main body 1 and the wind guiding component 2 are oppositely arranged is the up-down direction, and the direction in which the wind guiding component 2 is located relative to the main body 1 is defined as up, and the direction in which the main body 1 is located relative to the wind guiding component 2 is defined as down. Based on this definition, "up" and "down" are consistent with what people usually understand as up and down, corresponding to the direction from the floor of the room to the ceiling and the direction from the ceiling to the floor respectively. At the same time, with Figure 1 the side where the lower air outlet 1d is located as the front, and the side opposite to the lower air outlet 1d as the back.

[0054] Referring to Figure 1 , in some embodiments, the air conditioner 10 is a floor-standing air conditioner, which includes a main body 1, a wind guiding component 2, etc.

[0055] Among them, as Figure 1As shown, an opening 1a is provided at the top of the main body 1, and an air outlet channel 1b is provided inside. The opening 1a is used for the air guiding component 2 to be inserted into the main body 1, and together with the air guiding component 2, an upper air outlet 1c is formed. The air outlet channel 1b serves as a channel for air flow, guiding the air flow to the outside of the air conditioner 10.

[0056] And, referring to Figure 1 , in some embodiments, a lower air outlet 1d is further provided at the lower part of the main body 1. Together with the upper air outlet 1c, the lower air outlet 1d and the upper air outlet 1c form the upper and lower air outlets of the air conditioner 10, allowing the air flow to flow out from the lower and upper parts of the air conditioner 10. Both the upper air outlet 1c and the lower air outlet 1d are communicated with the air outlet channel 1b.

[0057] Based on the upper air outlet 1c, further setting the lower air outlet 1d has the advantage that, on the one hand, it is convenient during the initial stage of cooling when the cooling has not reached the steady state and is still in the dynamic cooling process. By simultaneously discharging air from the upper and lower parts, the room and the human body can be quickly cooled down, shortening the transition time from the dynamic cooling process to the cooling steady state and more quickly meeting the user's cooling needs. On the other hand, it is also convenient during the heating process. By discharging air from the lower air outlet 1d, the user can feel warm from the feet first, avoiding hot head and cold feet and improving the heating comfort.

[0058] Among them, in order to avoid affecting the body feeling comfort when the cooling reaches the steady state due to the air discharge from the lower air outlet 1d, referring to Figure 1 , in some embodiments, the air conditioner 10 further includes a damper 4. The damper 4 is movably provided on the main body 1 and is used to open or close the lower air outlet 1d. For example, in some embodiments, the damper 4 is movably provided up and down on the main body 1. At this time, the damper 4 can open and close the lower air outlet 1d by moving up and down. Or, in other embodiments, the damper 4 can also be rotatably provided on the main body 1, enabling the damper 4 to open and close the lower air outlet 1d by rotating. In this way, the damper 4 can be used to control the opening and closing of the lower air outlet 1d, and further control whether the air conditioner 10 discharges air downward. For example, during the initial stage of cooling (or heating), the damper 4 can be used to open the lower air outlet 1d so that the cold air (or hot air) can blow to parts such as the calves that are more sensitive to heat stimulation (or cold stimulation) in a relatively hot (or cold) environment. Through this local cold (or hot) stimulation, the human body can feel more comfortable. For another example, when the cooling reaches the steady state, the damper 4 can be used to close the lower air outlet 1d to prevent the cold air flowing out from the lower air outlet 1d from directly blowing on the human body and affecting the comfort. For yet another example, when the heating reaches the steady state, the hot air rises, the room temperature stratification is obvious, and most of the heat accumulates in the upper area of the room. At this time, opening the lower air outlet 1c can send the hot air to the feet first, making the feet warm and avoiding hot head and cold feet, improving the steady-state thermal comfort of the human body.

[0059] Specifically, as Figure 1As shown, in some embodiments, the main body 1 includes a housing 11 and a wind generating device. The top of the housing 11 is open, forming an opening 1a, such that the opening 1a is provided at the top of the housing 11. The bottom of the front wall of the housing 11 is provided with a lower air outlet 1b, such that the lower air outlet 1b is provided on the front wall of the housing 11 and is located at the bottom of the front wall of the housing 11, facilitating downward air outlet. The wind generating device is disposed inside the housing 11 and is used to drive the gas flow to generate an air outlet airflow. The wind generating device is arranged at an interval from the inner wall of the housing 11, forming an air outlet channel 1b, that is, the air outlet channel 1b is provided between the wind generating device and the inner wall of the housing 11.

[0060] More specifically, as Figure 1 shown, in some embodiments, the housing 11 includes an outer shell 15 and a decorative panel 14. The inside of the outer shell 15 is hollow and is used to accommodate the wind generating device and the like. In some embodiments, the outer shell 15 is generally cylindrical. The top of the outer shell 15 is open, forming an opening 1a. Moreover, the front of the top of the outer shell 15 is lower and the rear is higher, such that the opening 1a is inclined with the front lower and the rear higher. The decorative panel 14 is provided on the inner wall of the outer shell 15 and extends downward from the top of the outer shell 15. The air outlet channel 1b is located between the wind generating device and the decorative panel 14. In some embodiments, the decorative panel 14 is connected to the front wall of the outer shell 15, and the wind generating device is installed on the rear wall of the outer shell 15. At this time, the air outlet channel 1b is located between the wind generating device and the front wall of the housing 11, the air outlet airflow contacts the decorative panel 14, and the space between the wind generating device and the rear wall of the housing 11 is blocked and no air is discharged.

[0061] Continuing to refer to Figure 1 , in some embodiments, the wind generating device includes a first blower 12. The first blower 12 includes a first motor 121 and a first blade 122. The first motor 121 is drivingly connected to the first blade 122 and is used to drive the first blade 122 to rotate to generate an air outlet airflow. The first blade 122 can be a centrifugal blade.

[0062] Moreover, as Figure 1 shown, in some embodiments, the wind generating device further includes a second blower 13. The second blower 13 is disposed below the first blower 12 and includes a second motor 131 and a second blade 132. The second motor 131 is drivingly connected to the second blade 132 and is used to drive the second blade 132 to rotate to generate an air outlet airflow. The second blade 132 can be a centrifugal blade.

[0063] The airflows generated by the first blower 12 and the second blower 13 flow along the air outlet channel 1b and finally flow out of the air conditioner 10 to enter the room, achieving the purpose of refrigeration or heating.

[0064] Referring to Figure 2 and Figure 3, in some embodiments, the upper part of the first blower 12 discharges air, and the lower part is closed. While both the upper and lower parts of the second blower 13 discharge air. The advantage of such a setting is that, on the one hand, both the first blower 12 and the second blower 13 can discharge air upwards, which can provide more air volume for the upper air outlet 1c serving as the main air outlet and better meet the actual air outlet requirements; on the other hand, the second blower 13 can discharge air downwards to meet the air outlet requirements of the lower air outlet 1d; on the further hand, the air flow of the first blower 12 does not flow downwards, which can also avoid the cross of the air flow provided by the first blower 12 and the upward air flow provided by the second blower 13, thereby avoiding the air volume loss and noise problems caused by the cross of the upper and lower air flows and realizing a more smooth and low-noise air outlet process.

[0065] Among them, in order to better guide the air flow of the first blower 12, referring to Figure 1 , in some embodiments, the first blower 12 further includes a first wind shield 123, which is arranged on the first motor 121 and is specifically located at one end of the first motor 121 facing the front wall of the housing 1. In some embodiments, the first wind shield 123 includes a first wind shielding portion 123a and a second wind shielding portion 123b. The first wind shielding portion 123a extends substantially vertically and extends above the first blade 122 to guide the air flow discharged by the first blower 12 to flow upwards. The second wind shielding portion 123b closes the lower space of the first motor 121. For example, in some embodiments, the second wind shielding portion 123b inclines from one end of the first motor 121 facing the front wall of the housing 1 to the side of the rear wall of the housing 1 to close the space below the first motor 121, so that the air flow generated by the first blower 12 cannot be discharged downwards. In this way, under the action of the first wind shielding portion 123a and the second wind shielding portion 123b, the first blower 12 can conveniently achieve only upward air discharge and no downward air discharge, which is beneficial to realizing more efficient and low-noise air flow of the first blower 12 flowing to the upper air outlet 1c.

[0066] And in order to better guide the air flow of the second blower 13, referring to Figure 1 , in some embodiments, the second blower 13 further includes a second wind shield 133. The second wind shield 133 is arranged on the second motor 131 and is specifically located at one end of the second motor 131 facing the front wall of the housing 1. In some embodiments, the second wind shield 133 includes a third wind shielding portion 133a, which extends substantially vertically and extends to the upper and lower sides of the second blade 132 to guide the air flow discharged by the second blower 13 to flow both upwards and downwards, realizing the two-way air discharge of the second blower 13 up and down.

[0067] Among them, the first wind shield 123 and the second wind shield 133 can be specifically constructed as wind plates.

[0068] During the operation of the air conditioner 10, referring toFigure 2 and Figure 3 When the air damper 4 is opened, the air flow discharged downward by the second blower 13 directly blows out from the lower air outlet 1d to the outside. When the air damper 4 is closed, due to the obstruction of the air damper 4, the air flow discharged downward by the second blower 13 turns upward and flows together with the air flow discharged upward by the second blower 13 and the air flow discharged upward by the first blower 12 in the air outlet passage 1b and blows out from the upper air outlet 1c.

[0069] The air guiding member 2 is disposed at the opening 1a for forming the upper air outlet 1c between the air guiding member 2 and the main body 1 and guiding the air flow flowing out from the upper air outlet 1c to flow as expected. Refer to Figure 1 The upper surface of the air guiding member 2 is located above the opening 1a. And an upper air outlet 1c communicating with the air outlet passage 1b is formed between the top end of the air guiding member 2 and the main body 1. In this way, the air flow flowing upward along the air outlet passage 1b can be discharged to the outside of the air conditioner 10 through the upper air outlet 1c.

[0070] When the air outlet passage 1b is located between the air generating device and the front wall of the housing 11, the upper air outlet 1c is located between the front part of the air guiding member 2 and the front part of the top end of the main body 1. For example, in some embodiments, an upper air outlet 1c is formed between the front half part of the air guiding member 2 and the front half part of the top end of the main body 1, and the space between the rear half part of the air guiding member 2 and the rear half part of the top end of the main body 1 is partitioned and not used for air outlet. At this time, refer to Figure 5 Only the front half part of the side wall of the air guiding member 2 is in contact with the air flow, the circumferential angle of the upper air outlet 1c is 180°, and there is a space for the air flow to flow out within the range of 180° on the front surface of the top of the air conditioner 10, and 180° wide-angle air supply can be realized.

[0071] Refer to Figures 1 - 6 In some embodiments, the rear end of the air guiding member 2 is high and the front end is low, and the air guiding member 2 is inclinedly installed at the opening 1a. In this way, the inclined manner of the air guiding member 2 is consistent with the inclined manner of the opening 1a, which is convenient for better cooperation between the two to guide the flow of the air outlet air flow.

[0072] Continue to refer to Figures 1 - 6 In some embodiments, the air guiding member 2 includes a fluid guide 22 and a cover 21. The fluid guide 22 extends below the opening 1a, has an open top, has a cavity inside, and the side wall is arc-shaped and the cross-sectional area gradually increases from bottom to top. The cover 21 is disposed on the top of the fluid guide 22 for sealing the open top of the fluid guide 22. In this way, the side wall of the fluid guide 22 becomes the side wall of the air guiding member 2, and the upper surface of the cover 21 becomes the upper surface of the air guiding member 2. At this time, the upper air outlet 1c is specifically formed between the outer edge of the upper surface of the cover 21 and the top end of the housing 11.

[0073] In order to improve the effect of not blowing cold air on people, refer to Figures 1 - 6, in some embodiments, the upper edge of the upper air outlet 1c is located inside the lower edge of the upper air outlet 1c.

[0074] It can be understood that the upper edge of the upper air outlet 1c is the part of the outer edge of the upper surface of the air guiding member 2 corresponding to the upper air outlet 1c, and the lower edge of the upper air outlet 1c is the part of the top end of the main body 1 corresponding to the upper air outlet 1c. The upper edge of the upper air outlet 1c being located inside the lower edge of the upper air outlet 1c means that the part of the outer edge of the upper surface of the air guiding member 2 corresponding to the upper air outlet 1c is located inside the part of the top end of the main body 1 corresponding to the upper air outlet 1c. In other words, the part of the outer edge of the upper surface of the air guiding member 2 corresponding to the upper air outlet 1c is narrower than the part of the top end of the main body 1 corresponding to the upper air outlet 1c, and the part of the outer edge of the upper surface of the air guiding member 2 corresponding to the upper air outlet 1c does not protrude above the part of the top end of the main body 1 corresponding to the upper air outlet 1c in the horizontal plane. Among them, the part of the outer edge of the upper surface of the air guiding member 2 corresponding to the upper air outlet 1c is also the part of the outer edge of the upper surface of the air guiding member 2 in contact with the outgoing air flow. The part of the top end of the main body 1 corresponding to the upper air outlet 1c is also the part of the top end of the main body 1 in contact with the outgoing air flow. The inner side refers to the side close to the inside of the main body 1. When the main body 1 is generally in a cylindrical or other rotational body structure, the inner side specifically refers to the side radially close to the inside of the main body 1, or simply referred to as the radial inner side.

[0075] Specifically in the illustrated embodiment, the air guiding member 2 is entirely located in the opening 1a in the horizontal direction, that is, the entire outer edge of the upper surface of the air guiding member 2 is located inside the top end of the main body 1. Of course, in other embodiments, only the part of the outer edge of the upper surface of the air guiding member 2 corresponding to the upper air outlet 1c may be located inside the part of the top end of the main body 1 corresponding to the upper air outlet 1c, while the remaining part is located outside the top end of the main body 1 or is flush with the top end of the main body 1 in the horizontal plane. For example, when the circumferential angle of the upper air outlet 1c is 180°, the air guiding member 2 may only have the front half part located radially inside the front half part of the top end of the main body 1, and the rear half part is located radially outside the rear half part of the top end of the main body 1 or is vertically aligned with the rear half part of the top end of the main body 1.

[0076] Figures 2 to 4 Shows the air outlet situation of the air conditioner 10. Figures 2 - 4 The arrows in indicate the general flow direction of the air flow. From Figure 2 and Figure 4It can be seen that when the upper edge of the upper air outlet 1c is located inside the lower edge of the upper air outlet 1c, the shielding of the air guiding component 2 from the air flow is reduced. As a result, most of the air flow will not hit the side wall of the air guiding component 2 again during the process of flowing towards the upper air outlet 1c, or even if it hits the side wall of the air guiding component 2, it will not flow forward in advance. Therefore, when the air flows out of the air outlet 1c, the air supply height is effectively increased, and most of the air flow can flow obliquely upward towards the upper part of the room where people cannot be blown, avoiding direct blowing of cold air on people, improving the effect of not blowing cold air on people, and enhancing the comfort of using the air conditioner 10.

[0077] The air flow flowing towards the upper part of the space sinks under the action of gravity to provide cold air for the room, forming a shower-like air supply method, and the user's comfort experience is better.

[0078] It can be seen that by changing the relationship between the upper edge and the lower edge of the upper air outlet 1c from the upper edge being located outside the lower edge or the upper edge being flush with the lower edge in the horizontal direction to the upper edge being located inside the lower edge, the shielding of the air guiding component 2 from the air flow out can be effectively reduced, the air flow rate flowing towards the upper part of the room space can be increased, the air supply height can be increased, the direct blowing air flow can be reduced, and the shower-like cooling effect of not blowing cold air on people can be achieved, effectively enhancing the comfort of users.

[0079] After research, it is found that Figure 6 Several dimensional parameters of the upper air outlet 1c shown have an important impact on the air outlet effect. Among them, point A represents the lowest point of the upper edge of the upper air outlet 1c and also the lowest point of the outer edge of the upper surface of the air guiding component 2. Point B represents the lowest point of the lower edge of the upper air outlet 1c and also the lowest point of the top of the main body 1, specifically the lowest point of the top of the housing 11. Point C represents the intersection point of the horizontal plane where point B is located and the side wall of the air guiding component 2 facing point B. Point D represents the projection of point A on the horizontal plane where point B is located. Dimension a represents the straight-line distance between point A and point B, which is actually the width of the upper air outlet 1c. Dimension b represents the vertical distance between point A and point B, which is actually the straight-line distance between point A and point D. Dimension d represents the horizontal distance between point A and point B, which is actually the horizontal distance between point D and point B. Dimension c represents the horizontal distance between point D and point C, which is actually the horizontal distance between point D and the air guiding component 2, or the horizontal depth of the side wall of the air guiding component 2 that is flush with point B in the height direction.

[0080] Among them, dimension a characterizes the opening size of the upper air outlet 1c and directly affects the flow-through area of the upper air outlet 1c.

[0081] Dimension b can affect the flow-through area of the upper air outlet 1c by affecting the vertical height of the upper air outlet 1c.

[0082] The dimension d can affect the flow-through area of the upper air outlet 1c by influencing the horizontal width of the upper air outlet 1c. It can be understood that if the d value when the upper edge of the upper air outlet 1c is inside the lower edge (i.e., point A is inside point B) is defined as a positive value, then the d value when the upper edge of the upper air outlet 1c is outside the lower edge or the two are flush in the horizontal direction (i.e., point A is outside point B or point A is directly above or below point B) is a negative value.

[0083] The dimension c affects the smoothness of air outlet. The larger the dimension c, the smoother the air outlet and the greater the air volume. However, if the dimension c is too large, it will affect the aesthetics of the air conditioner 10.

[0084] Based on the above findings, the present invention also sets the sizes of the dimension d, the dimension b, the dimension c, etc., to further improve the air outlet effect.

[0085] Among them, in some embodiments, d is greater than 0 mm and less than or equal to 50 mm. For example, it is 15 - 20 mm. b is 30 - 200 mm. For example, it is 60 - 120 mm. c is 50 - 200 mm. For example, it is 75 - 85 mm.

[0086] Based on the above parameter settings, better effects of cold air not blowing on people and large air volume blowing can be achieved. This is also reflected in the experiments to be introduced later.

[0087] The air guiding member 2 can be fixedly arranged at the opening 1a, or can also be arranged at the opening 1a with adjustable position.

[0088] Among them, when the air guiding member 2 is arranged at the opening 1a with adjustable position, the flow-through area of the upper air outlet 1c can be conveniently changed by adjusting the position of the air guiding member 2, which enables the flow-through area of the upper air outlet 1c to be flexibly adjusted according to actual working conditions, such as the installation position of the air conditioner 10, the size of the room where the air conditioner 10 is located, and the required heating or cooling degree of the user, so as to better meet the user's needs.

[0089] In particular, the flow-through area of the upper air outlet 1c also affects the air supply distance. Therefore, by adjusting the position of the air guiding member 2 to adjust the flow-through area of the upper air outlet 1c, the adjustment of the air supply distance can also be achieved, flexibly meeting the requirements of different use scenarios for different air supply distances. For example, when long-distance air supply is required, the air guiding member 2 can be lowered to reduce the air outlet area of the upper air outlet 1c, increase the air outlet speed, and increase the air supply distance; while when short-distance air supply is required, the air guiding member 2 can be raised to increase the air outlet area of the upper air outlet 1c, reduce the air outlet speed, and shorten the air supply distance.

[0090] Moreover, by changing the position of the air guiding component 2 to adjust the air supply distance, the adjustment of the air supply distance is no longer limited to adjusting the fan speed, effectively solving the problem that the air supply distance is limited by the adjustment range of the fan speed when solely relying on adjusting the fan speed to adjust the air supply distance.

[0091] Taking a cabinet air conditioner as an example. A household cabinet air conditioner is generally placed in a corner of the living room. When the user is in the living room and close to the air conditioner, the user does not want the high wind speed to blow on the body, because direct high-speed blowing will cause discomfort. At the same time, the user also does not want the air supply distance to be too far, because the air blowing to the area where no one is active in the distance will cause energy waste; while when the user is far from the air conditioner, for example, in the dining room, there will be a need for long-distance air supply.

[0092] Traditional air conditioners can only adjust the air supply distance by adjusting the fan speed. In this case, when the wind gear has been adjusted to the highest gear, the fan speed cannot be further increased, and thus the demand for a farther air supply distance cannot be met; in addition, when the user needs short-distance and low-wind-speed air supply, only by reducing the fan speed can the purpose of reducing the air supply distance and air supply wind speed be achieved. However, when the air volume decreases, it is easy to cause insufficient cooling / heating capacity, affecting the cold / hot comfort.

[0093] By setting the air guiding component 2 to be position adjustable, the adjustment methods of the air supply distance can be enriched. When using the air conditioner 10, without adjusting the wind gear, only by changing the position of the air guiding component 2 can the adjustment of the air supply distance be achieved. Or, after the wind gear has been adjusted to the maximum / minimum gear, the air supply distance can still be further changed by changing the position of the air guiding component 2, so as to more flexibly meet the more diverse demands for the air supply distance in people's daily lives.

[0094] Among them, the position adjustment of the air guiding component 2 can be achieved either by the vertical movement of the air guiding component 2 or by other means.

[0095] For example, in some embodiments, the air guiding component 2 is rotatably arranged and changes its position by rotating relative to the body 1. At this time, the change in the position of the air guiding component 2 not only includes the change in the height position of the air guiding component 2, but also includes the change in the horizontal position of the air guiding component 2, so that not only Figure 6 the parameter b shown is adjustable, but also Figure 6 the parameters c and d shown are adjustable.

[0096] Specifically, referring to Figure 1 and Figure 6, In some embodiments, the air guiding member 2 swings around a horizontal axis extending in the left - right direction. This horizontal axis is arranged at the rear side of the air guiding member 2. In this way, when the air guiding member 2 rotates around this horizontal axis, it will swing back and forth. When point A generates a displacement in the up - down direction, it will also generate a displacement in the front - back direction. As a result, not only the value of b changes, but also the values of c and d change, realizing the adjustment of the parameters b, c, and d. For the same air conditioner 10, the parameters d, b, and c are no longer fixed values, but can vary within a certain parameter range (such as the several parameter ranges mentioned above). Furthermore, it is possible to more flexibly adjust the flow - through area of the upper air outlet 1c according to actual needs, meeting more diverse air - supply distance requirements.

[0097] Moreover, since the parameter d is set to be adjustable, it is also possible to adjust the degree of blocking of the air - outlet airflow by the air guiding member 2 according to the actual situation, change the obliquely - upward air - supply volume, adjust the air - supply height, and obtain a more satisfactory effect of cold air not blowing directly on people.

[0098] It can be seen that setting the air guiding member 2 to achieve lifting through rotation is not only beneficial to realizing flexible adjustment of the air - supply distance, but also conducive to improving the effect of cold air not blowing directly on people, obtaining a more comfortable user experience.

[0099] To achieve automatic adjustment of the position of the air guiding member 2, referring to Figure 1 and Figure 6 , in some embodiments, the air conditioner 10 further includes a driving mechanism 3. The driving mechanism 3 is drivingly connected to the air guiding member 2 and is used to drive the air guiding member 2 to move and change the position of the air guiding member 2. For example, when the position of the air guiding member 2 is changed by rotation, the driving mechanism 3 drives the air guiding member 2 to rotate to drive the air guiding member 2 to change its position. In this way, under the action of the driving mechanism 3, the air guiding member 2 can automatically change its position, realizing automatic adjustment of the flow - through area of the upper air outlet 1c.

[0100] Among them, the implementation manner of the driving mechanism 3 can be diverse. For example, it includes a power mechanism such as a motor and a transmission mechanism such as a gear mechanism, as long as it can drive the air guiding member 2 to change its position, which will not be elaborated here.

[0101] To more clearly reflect the air - supply effect of the air conditioner 10 of the present invention, tests were conducted on the air conditioner 10 of the present invention. Next, the corresponding test process and test results will be described in combination with Figures 7 - 12 to illustrate.

[0102] Figure 7 shows the layout of the air conditioner 10 during the test. As Figure 7As shown in the figure, the air conditioner 10 is placed in the corner of the room to simulate the actual installation position of the user in the living room. Among them, the height difference between point B of the air conditioner 10 and the bottom end of the main body 1 is 175 cm. The length L of the room is 6.8 m, the width W is 5.2 m, the height H (not shown in the figure) is 2.8 m, and the area is 47.16 m 2 . The room has a door 6 and a window 5.

[0103] During the test, the parameter b is adjusted within the range of 60 - 120 mm, while the parameters c and d are both set to fixed values. Among them, the parameter c is selected as 80 mm, and the parameter d is selected as 18 mm to simplify the test process.

[0104] During the test, the effects of cold air not blowing on people and the air supply distance are mainly tested.

[0105] First, the test of cold air not blowing on people is introduced.

[0106] Under the condition of indoor temperature of 27 °C and outdoor temperature of 35 °C, the air conditioner 10 is set to 16 °C in strong wind gear. The position of the air deflector 4 is adjusted so that the parameter b is 90 mm, and the air damper 4 is closed. The air conditioner 10 is started, and starting from the upper air outlet 1c, a wind speed test is carried out every 0.5 m in the horizontal direction and every 10 cm in height in the vertical direction using a vane anemometer. For example, when the room height is 280 cm, at each horizontal distance of 0.5 m, the upper edge of the air supply (the highest position of the air supply from the ground) and the lower edge of the air supply (the lowest position of the air supply from the ground) are tested at heights of 280 cm, 270 cm, 260 cm... 0 cm from the ground. Among them, since 0.3 m / s is the lower limit of the measurement range of the vane anemometer, the wind speed less than 0.3 m / s can be considered as no wind. Therefore, the wind speed area where the measured wind speed is greater than or equal to 0.3 m / s is determined as the windy area, and the wind speed area where the wind speed is less than 0.3 m / s is determined as the non-windy area. Furthermore, the height position corresponding to the wind speed of 0.3 m / s is determined as the lower edge of the air supply, and the height position corresponding to the maximum wind speed higher than 0.3 m / s is determined as the lower edge of the air supply.

[0107] The test data obtained according to the above test method is plotted as a curve to obtain the Figure 8 cold air non-blowing air supply effect curve shown in the figure.

[0108] From Figure 8 it can be seen that for the air conditioner 10 with the obliquely upward air outlet of the present invention, the air supply height range of the upper air outlet 1c (that is, the height area where the wind speed is greater than or equal to 0.3 m / s) is between 190 cm and 280 cm, which is in the non-human activity area of the entire room. At this time, the cold air blows obliquely upward, flows to the upper space of the room, and then slowly sinks under the action of gravity, which can achieve the effect of cold air not blowing on people and shower cooling.

[0109] Furthermore, a thermal comfort tester is used to detect the draft feeling index of the room. The thermal comfort tester is placed at the center of the room, and the height of the thermal comfort tester from the ground is 1.1 m, simulating the height of the head position in the sitting posture of a human body for testing. The test results show that the draft feeling index of this monitoring point is only 5.3%, while the draft feeling index of a conventional front air outlet air conditioner under the same conditions is 30%. Therefore, the effect of cold air not blowing on people is effectively improved.

[0110] Among them, the draft feeling index is used to quantitatively predict the percentage of dissatisfied people caused by the draft feeling.

[0111] Next, the long-distance air supply test is introduced.

[0112] When conducting the long-distance air supply test, the refrigeration long-distance air supply test and the heating long-distance air supply test are respectively implemented.

[0113] Among them, when implementing the refrigeration long-distance air supply test, under the working conditions of indoor temperature of 27 °C and outdoor temperature of 35 °C, the air conditioner is set at 16 °C in the strong wind gear, the position of the air guide component 2 is adjusted to make the parameter b reach 60 mm, and the air damper 4 is closed. The air conditioner 10 is started, and in a similar manner to the cold air not blowing on people test described above, at every 0.5 m interval in the horizontal distance starting from the upper air outlet 1c, the wind speed at every 10 cm interval in the vertical direction of the air supply is measured using a vane anemometer, and the measurement is carried out from top to bottom until the wind speed is less than 0.3 m / s, and the upper edge and lower edge of the air supply are determined.

[0114] The test data obtained according to the above test method are plotted into a curve to obtain the Figure 9 refrigeration long-distance air supply effect curve diagram as shown.

[0115] Comparing Figure 8 and Figure 9 it can be seen that by adopting the adjustable inclined upward air outlet mode of the present invention and adjusting the parameter b from 90 mm to 60 mm, the refrigeration air supply distance can be increased from 7 m to 8.5 m, which can meet the long-distance air supply requirements of positions such as restaurants.

[0116] Similarly, a thermal comfort tester is used to detect the draft feeling index of the room. The thermal comfort tester is placed at the center of the room, and the height of the thermal comfort tester from the ground is 1.1 m, simulating the height of the head position in the sitting posture of a human body for testing. The test results show that the draft feeling index of this monitoring point is 7.6%. Compared with the result of 5.3% when b was 90 mm described above, the draft feeling index slightly increases, but compared with the draft feeling index of 30% of a conventional front air outlet air conditioner, it still has a great advantage.

[0117] Among them, when b is 90 mm, the reason for the increase in the blowing feeling index is mainly that the area of the upper air outlet 1c decreases, while the fan speed remains unchanged, the air speed at the upper air outlet 1c increases, and the air flow speed in the room accelerates.

[0118] When conducting the heating long-distance air supply test, under the condition of indoor temperature of 0°C and outdoor temperature of -5°C, the air conditioner is set at 30°C in the strong wind gear. Adjust the position of the air guide component 2 to make the parameter b reach 60 mm, and open the air door 4. Start the air conditioner 10, and in a similar manner to the aforementioned cold air non-blowing test, at every 0.5 m interval of the horizontal distance starting from the upper air outlet 1c, use a vane anemometer to measure the air speed at a vertical distance of 10 cm. Measure from top to bottom until the measured air speed is less than 0.3 m / s, record the vertical height at this time, and determine the upper and lower edges of the air supply.

[0119] Plot the test data obtained according to the above test method into a curve to obtain the Figure 10 heating long-distance air supply effect curve diagram as shown.

[0120] It can be seen from Figure 10 that when the adjustable inclined upward air supply method of the present invention is adopted, in the heating mode, the air supply distance can also reach 8.5 m, effectively meeting the long-distance air supply requirements in locations such as restaurants.

[0121] Next, the short-distance air supply test is introduced.

[0122] When conducting the short-distance air supply test, the refrigeration short-distance air supply test and the heating short-distance air supply test are respectively implemented.

[0123] Among them, when implementing the refrigeration short-distance air supply test, under the condition of indoor temperature of 27°C and outdoor temperature of 35°C, the air conditioner is set at 16°C in the strong wind gear. Adjust the position of the air guide component 2 to make the parameter b reach 120 mm, and close the air door 4. Start the air conditioner 10, and in a similar manner to the aforementioned cold air non-blowing test, at every 0.5 m interval of the horizontal distance starting from the upper air outlet 1c, use a vane anemometer to measure the air speed at a vertical distance of 10 cm. Measure from top to bottom until the measured air speed is less than 0.3 m / s, record the vertical height at this time, and determine the upper and lower edges of the air supply.

[0124] Plot the test data obtained according to the above test method into a curve to obtain the Figure 11 refrigeration short-distance air supply effect curve diagram as shown.

[0125] By comparing Figure 8 and Figure 11 it can be known that by adopting the adjustable inclined upward air supply method of the present invention and adjusting the parameter b from 90 mm to 120 mm, the refrigeration air supply distance can be shortened from 7 m to 5.5 m, which can meet the short-distance air supply requirements.

[0126] Similarly, a thermal comfort tester is used to detect the draft feeling index of the room. The thermal comfort tester is placed at the center of the room, and the height of the thermal comfort tester from the ground is 1.1 m, simulating the height of the head position in the sitting posture of the human body for testing. The test results show that the draft feeling index at this monitoring point is 3.8%, and compared with the result of 5.3% when b is 90 mm as described above, the draft feeling index is further reduced.

[0127] Among them, compared with when b is 90 mm, the main reason for the further reduction of the draft feeling index is that the area of the upper air outlet 1c increases, while the fan speed remains unchanged, the air speed at the upper air outlet 1c decreases, and the air flow speed in the room slows down, which can meet the air supply requirements of the user for short distance, large air volume and low air speed, and ensure indoor cold / hot comfort.

[0128] When conducting the heating short-distance air supply test, under the condition that the indoor temperature is 0 °C and the outdoor temperature is -5 °C, the air conditioner is set to 30 °C, the strong wind gear is selected, the position of the air deflector 2 is adjusted to make the parameter b reach 120 mm, and the air door 4 is opened. The air conditioner 10 is started, and in a similar way to the cold air non-blowing test described above, at every 0.5 m interval of the horizontal distance starting from the upper air outlet 1c, the air speed at a vertical distance of 10 cm is measured by a vane anemometer in the vertical direction, and the measurement is carried out from top to bottom until the measured air speed is less than 0.3 m / s, and the vertical height at this time is recorded to determine the upper edge and lower edge of the air supply.

[0129] The test data obtained according to the above test method are plotted into a curve to obtain the Figure 12 heating short-distance air supply effect curve diagram as shown.

[0130] Comparing Figure 10 and Figure 12 it can be known that when the adjustable diagonal upward air supply mode of the present invention is adopted, when the parameter b is adjusted from 60 mm to 120 mm, the heating air supply distance can be shortened from 8.5 m to 5 m to meet the short-distance air supply requirements.

[0131] In summary, it can be seen that for the air conditioner 10 of the present invention, adopting the adjustable diagonal upward air supply mode can make the lowest position of the lower edge of the air supply at the upper air outlet 1c be located at the position of 180 cm of the room height, which is in the non-human activity area of the whole room. The refrigeration draft index in the human activity area is only 3.8 - 7.6%, which can completely solve the problem of cold air blowing on people; and without adjusting the wind gear, it can meet the air supply distance requirements in different scenarios. At the same time, after being set to the highest wind gear, the position of the air deflector 2 can still be adjusted to change the air supply distance, so that the refrigeration air supply distance can be adjusted between 5.5 - 8.5 m, and the heating air supply distance can be adjusted within the range of 5 - 8.5 m, and the air supply requirements of the user for short distance, large air volume and low air speed can be realized under the strong wind gear.

[0132] The above are only exemplary embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An air conditioner (10), characterized in that, it includes: a main body (1) with an opening (1a) at the top and an air outlet passage (1b) inside; and a wind guiding component (2) rotatably arranged at the opening (1a), and by rotating relative to the main body (1) to change the height position and horizontal position of the wind guiding component (2), the rear end of the wind guiding component (2) is high and the front end is low, and it is inclinedly installed at the opening (1a), the inclination mode of the wind guiding component (2) is consistent with the inclination mode of the opening (1a), the upper surface of the wind guiding component (2) is located above the opening (1a), an upper air outlet (1c) communicating with the air outlet passage (1b) is formed between the wind guiding component (2) and the top end of the main body (1), and the upper edge of the upper air outlet (1c) is located inside the lower edge of the upper air outlet (1c), and the horizontal distance d between the lowest point (A) of the upper edge of the upper air outlet (1c) and the lowest point (B) of the lower edge of the upper air outlet (1c) is greater than 0 mm and less than or equal to 50 mm.

2. The air conditioner (10) according to claim 1, characterized in that, the horizontal distance d between the lowest point (A) of the upper edge of the upper air outlet (1c) and the lowest point (B) of the lower edge of the upper air outlet (1c) is 15 - 20 mm.

3. The air conditioner (10) according to claim 1, characterized in that, the vertical distance b between the lowest point (A) of the upper edge of the upper air outlet (1c) and the lowest point (B) of the lower edge of the upper air outlet (1c) is 30 - 200 mm; and / or, the horizontal distance c between the projection (D) of the lowest point (A) of the upper edge of the upper air outlet (1c) on the horizontal plane where the lowest point (B) of the lower edge of the upper air outlet (1c) is located and the wind guiding component (2) is 50 - 200 mm.

4. The air conditioner (10) according to claim 3, characterized in that, the vertical distance b between the lowest point (A) of the upper edge of the upper air outlet (1c) and the lowest point (B) of the lower edge of the upper air outlet (1c) is 60 - 120 mm; and / or, the horizontal distance c between the projection (D) of the lowest point (A) of the upper edge of the upper air outlet (1c) on the horizontal plane where the lowest point (B) of the lower edge of the upper air outlet (1c) is located and the wind guiding component (2) is 75 - 85 mm.

5. The air conditioner (10) according to any one of claims 1 - 4, characterized in that, the circumferential angle of the upper air outlet (1c) is 180°.

6. The air conditioner (10) according to any one of claims 1 - 4, characterized in that, the height difference between the lowest point of the lower edge of the upper air outlet (1c) and the bottom end of the main body (1) is 175 cm.

7. The air conditioner (10) according to any one of claims 1 - 4, characterized in that, a lower air outlet (1d) communicating with the air outlet passage (1b) is further provided at the lower part of the main body (1), and the air conditioner (10) further includes a damper (4), the damper (4) is movably arranged on the main body (1) and is used to open or close the lower air outlet (1d).

8. The air conditioner (10) according to claim 7, wherein, the air damper (4) is movably arranged on the body (1) up and down to open or close the lower air outlet (1d).

9. The air conditioner (10) according to any one of claims 1-4, wherein, the body (1) includes a housing (11) and a first blower (12), the opening (1a) is located at the top of the housing (11), the first blower (12) is arranged in the housing (11), and the first blower (12) blows air from the upper part and is closed at the lower part.

10. The air conditioner (10) according to claim 9, wherein, the body (1) further includes a second blower (13), the second blower (13) is arranged in the housing (11) and is located below the first blower (12), and the second blower (13) blows air from both the upper part and the lower part.

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