Air conditioning cabinet and air conditioner

Abstract

The present invention discloses an air conditioning cabinet and an air conditioner, wherein the air conditioning cabinet comprises a shell and a cross-flow fan wheel erected in the shell, the front part of the shell has an air outlet extending in the up-down direction, the width of the upper part of the air outlet is greater than the width of the lower part of the air outlet, and the cross-flow fan wheel is arranged corresponding to the air outlet. In the air conditioning cabinet of the present invention, the average air outlet speed of the lower part of the air outlet is greater than the average air outlet speed of the upper part of the air outlet, and the airflow with a higher speed can produce a suction effect, driving the surrounding airflow to move in the same direction together. When the air conditioning cabinet is heated, the hot air with a higher wind speed at the lower part of the air outlet can be made to suck the surrounding airflow forward or forward and downward, thereby increasing the air supply distance of the air conditioning cabinet, and further increasing the air supply comfort of the air conditioning cabinet. At the same time, since the hot air delivered from the lower part of the air conditioning cabinet has a long air supply distance, the phenomenon of temperature stratification in the room can be greatly improved or even avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning cabinet and an air conditioner. Background Art

[0002] When the air conditioner is in heating mode, the hot air from its outlet tends to move upward, which results in insufficient air supply distance and poor air supply comfort. At the same time, the premature upward movement of hot air can easily cause temperature stratification in the room: the temperature above the room is high, while the temperature at the knees and calves is relatively low, which can easily bring a bad experience to users. Summary of the invention

[0003] The main purpose of the present invention is to provide an air conditioning cabinet, aiming to solve the technical problem that the air supply distance is insufficient when the existing air conditioning cabinet is heated.

[0004] To achieve the above-mentioned objectives, the present invention proposes an air conditioning cabinet, comprising a shell and a cross-flow fan wheel erected in the shell, the front portion of the shell having an air outlet extending in the up and down directions, the width of the upper portion of the air outlet being greater than the width of the lower portion of the air outlet, and the cross-flow fan wheel being arranged corresponding to the air outlet.

[0005] Preferably, the width of the air outlet is gradually decreased from top to bottom.

[0006] Preferably, the air outlet is arranged in a multi-step manner with a width gradually decreasing from top to bottom.

[0007] Preferably, there is a first ratio between the height of the lowest step of the air outlet and the height of the air outlet, and the first ratio is greater than or equal to 0.1 and less than or equal to 0.5.

[0008] Preferably, the air outlet includes a first section and a second section connected to the first section, and the first section is located above the second section;

[0009] The width of the first section remains unchanged, and the width of the second section is gradually decreased from top to bottom; or, the width of the first section is gradually decreased from top to bottom, and the width of the second section remains unchanged.

[0010] Preferably, there is a second ratio between the height of the first section and the height of the air outlet, and the second ratio is greater than or equal to 0.1 and less than or equal to 0.5.

[0011] Preferably, the air conditioning cabinet further includes a heat exchanger, and the heat exchanger is configured as a single-row heat exchanger.

[0012] Preferably, the air conditioning cabinet further comprises a heat exchanger, the upper portion of the heat exchanger is arranged in double rows, and the lower portion of the heat exchanger is arranged in single row.

[0013] Preferably, the heat exchanger is configured such that a third ratio exists between the height of the single-row portion and the height of the heat exchanger, and the third ratio is greater than or equal to 0.1 and less than 1.

[0014] Preferably, the crossflow wind wheel includes a first sub-wind wheel and a second sub-wind wheel arranged from top to bottom, the lower end of the first sub-wind wheel is connected to the upper end of the second sub-wind wheel, the first sub-wind wheel and the second sub-wind wheel are coaxially arranged, and the diameter of the first sub-wind wheel is smaller than the diameter of the second sub-wind wheel.

[0015] Preferably, the crossflow wind wheel includes a first sub-wind wheel and a second sub-wind wheel arranged from top to bottom, the lower end of the first sub-wind wheel is connected to the upper end of the second sub-wind wheel, the first sub-wind wheel and the second sub-wind wheel are coaxially arranged, the diameter of the first sub-wind wheel is the same as the diameter of the second sub-wind wheel, and the blade chord length of the first sub-wind wheel is smaller than the blade chord length of the second sub-wind wheel.

[0016] Preferably, the crossflow wind wheel includes a first sub-wind wheel and a second sub-wind wheel arranged from top to bottom, the lower end of the first sub-wind wheel is connected to the upper end of the second sub-wind wheel, the first sub-wind wheel and the second sub-wind wheel are coaxially arranged, and the blade distribution density of the first sub-wind wheel is less than the blade distribution density of the second sub-wind wheel.

[0017] Preferably, the air-conditioning cabinet also includes a volute assembly, which has a first air duct and a second air duct arranged in the up-down direction, the diffuser section of the first air duct is connected to the upper part of the air outlet, the diffuser section of the second air duct is connected to the lower part of the air outlet, and the width of the diffuser section of the first air duct is greater than the width of the diffuser section of the second air duct.

[0018] Preferably, the volute assembly comprises a volute and a volute tongue;

[0019] The volute tongue comprises an upper volute tongue and a lower volute tongue connected up and down, the projection of the root of the upper volute tongue on the horizontal plane coincides with the projection of the root of the lower volute tongue on the horizontal plane, and the projection of the diffuser section of the upper volute tongue on the horizontal plane is located inside the projection of the diffuser section of the lower volute tongue on the horizontal plane;

[0020] The volute comprises an upper volute and a lower volute which are respectively arranged corresponding to the upper volute tongue and the lower volute tongue and are connected up and down, the projection of the air induction section of the upper volute on the horizontal plane coincides with the projection of the air induction section of the lower volute on the horizontal plane, and the projection of the expansion section of the upper volute on the horizontal plane is located on the inner side of the projection of the expansion section of the lower volute on the horizontal plane;

[0021] Wherein, the first air duct is arranged between the upper volute tongue and the upper volute, and the second air duct is arranged between the upper volute and the lower volute.

[0022] The present invention also provides an air conditioner, including an air conditioner cabinet. The air conditioner cabinet includes a shell and a crossflow fan wheel erected in the shell, the front part of the shell has an air outlet extending in the up-down direction, the width of the upper part of the air outlet is greater than the width of the lower part of the air outlet, and the crossflow fan wheel is arranged corresponding to the air outlet.

[0023] The air conditioner cabinet of the present invention increases the outflow speed of the air flow flowing out of the lower part of the air outlet by making the width of the upper part of the air outlet greater than the width of the lower part of the air outlet, that is, shrinking the width of the lower part of the air outlet, that is, increasing the average air outlet speed of the lower part of the air outlet, so that the average air outlet speed of the lower part of the air outlet is greater than the average air outlet speed of the upper part of the air outlet, so that the air flow with a higher speed at the lower part of the air outlet can produce a suction effect, driving the surrounding air flow to move in the same direction together, so that when the air conditioner cabinet is heated, the hot air with a higher wind speed at the lower part of the air outlet can suck the surrounding air flow forward or forward and downward, thereby suppressing the upward movement trend of the hot air, thereby avoiding the premature upward movement of the hot air sent by the air conditioner cabinet, thereby increasing the air supply distance of the air conditioner cabinet, and further improving the air supply comfort of the air conditioner cabinet. At the same time, since the hot air sent from the lower part of the air outlet of the air conditioner cabinet has a long air supply distance, the temperature stratification phenomenon in the room can be greatly improved or even avoided, so that the temperature in the lower part of the room is high, achieving a warm effect, and further improving the user experience of the air conditioner cabinet. Based on basically the same principle, during cooling, since the average air outlet velocity at the lower part of the air outlet is greater than the average air outlet velocity at the upper part of the air outlet, the air supply distance of the air conditioning cabinet, especially the lower part of the air conditioning cabinet, can also be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 This is a schematic structural diagram of an embodiment of an air conditioning cabinet of the present invention;

[0026] Figure 2 The air conditioner cabinet of the present invention Figure 1 A schematic cross-sectional view of line II-II, wherein the heat exchanger is configured as a single-row heat exchanger;

[0027] Figure 3 The air conditioner cabinet of the present invention Figure 1 The schematic cross-sectional view of line II-II in the middle, wherein the upper part of the heat exchanger is arranged as a double row and the lower part is arranged as a single row;

[0028] Figure 4 It is a structural schematic diagram of another embodiment of the air conditioning cabinet of the present invention, wherein the air outlet is arranged in two steps;

[0029] Figure 5 It is a structural schematic diagram of another embodiment of the air conditioning cabinet of the present invention, wherein the air outlet is arranged in three steps;

[0030] Figure 6 The air conditioner cabinet of the present invention Figure 5 Schematic diagram of the cross section along line VI-VI;

[0031] Figure 7 It is a structural schematic diagram of another embodiment of the air conditioning cabinet of the present invention, wherein the width of the first section remains unchanged, and the width of the second section is gradually reduced from top to bottom;

[0032] Figure 8 It is a structural schematic diagram of another embodiment of the air conditioning cabinet of the present invention, wherein the width of the first section is gradually reduced from top to bottom, and the width of the second section remains unchanged;

[0033] Fig. 9 for Figure 2 Schematic diagram of the structure of the heat exchanger;

[0034] Fig.10 for Figure 3 Schematic diagram of the structure of the heat exchanger;

[0035] Fig.11 for Figure 2 A schematic diagram of the structure of a medium crossflow wind wheel, wherein the diameter of the first wind wheel sub-wheel is the same as the diameter of the second wind wheel sub-wheel;

[0036] Fig.12 for Figure 3 A schematic diagram of the structure of a medium crossflow wind wheel, wherein the diameter of the first sub-wind wheel is smaller than the diameter of the second sub-wind wheel;

[0037] Fig.13 It is a schematic structural diagram of the limiting partition in the present invention.

[0038] Description of Figure Numbers:

[0039]

[0040]

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The invention provides an air conditioning cabinet.

[0046] In the embodiment of the present invention, Figures 1 to 13 As shown, the air conditioning cabinet 100 includes a shell 10 and a cross-flow fan wheel 20 erected in the shell 10. The front part of the shell 10 has an air outlet 11 extending in the up and down directions. The width of the upper part of the air outlet 11 is greater than the width of the lower part of the air outlet 11. The cross-flow fan wheel 20 is arranged corresponding to the air outlet 11.

[0047] In a specific embodiment, the air conditioning cabinet 100 also includes a volute assembly 40 and a heat exchanger 50, the crossflow impeller 20 is arranged on the inner side of the heat exchanger 50, and the air duct assembly 40 is arranged between the crossflow impeller 20 and the air outlet 11, and is used to guide the air from the heat exchanger 50 forward to the air outlet 11.

[0048] The air conditioning cabinet 100 of the present invention can increase the outflow speed of the air flow flowing out through the lower part of the air outlet 11 by making the width of the upper part of the air outlet 11 larger than the width of the lower part of the air outlet 11, that is, shrinking the width of the lower part of the air outlet 11, that is, increasing the average air outlet speed of the lower part of the air outlet 11, so that the average air outlet speed of the lower part of the air outlet 11 is greater than the average air outlet speed of the upper part of the air outlet, and the air flow with a higher speed can produce a suction effect, driving the surrounding air flow to move in the same direction, so that the hot air with a higher wind speed at the lower part of the air outlet 11 sucks the surrounding air flow to move forward or forward and downward, so that when the air conditioning cabinet 100 is heating, the upward movement trend of the hot air can be suppressed, thereby avoiding the premature upward movement of the hot air delivered by the air conditioning cabinet 100, thereby increasing the air supply distance of the air conditioning cabinet 100, and further improving the air supply comfort of the air conditioning cabinet 100. At the same time, since the hot air sent out from the lower part of the air outlet 11 of the air-conditioning cabinet 100 has a long air supply distance, the temperature stratification phenomenon in the room can be greatly improved or even avoided, so that the temperature in the lower part of the room is high, achieving a warm effect, thereby improving the user experience of the air-conditioning cabinet 100. Based on the same principle, during cooling, since the average air outlet speed at the lower part of the air outlet 11 is greater than the average air outlet speed at the upper part of the air outlet, the air supply distance of the air-conditioning cabinet 100, especially the lower part, can be increased.

[0049] Therefore, the air conditioner cabinet 100 of the present invention can make the average speed of the air outflow from the lower part of the air outlet 11 greater than the average speed of the air outflow from the upper part of the air outlet 11 by making the width of the upper part of the air outlet 11 greater than the width of the lower part of the air outlet 11. The airflow with a higher speed can produce a suction effect, driving the surrounding airflow to move in the same direction. When the air conditioner cabinet 100 is heating, the hot air with a higher wind speed from the lower part of the air outlet 11 can be sucked by the surrounding airflow to move forward or forward and downward, thereby suppressing the upward movement trend of the hot air, thereby avoiding the premature upward movement of the hot air sent by the air conditioner cabinet 100, thereby increasing the air supply distance of the air conditioner cabinet 100, and further improving the air supply comfort of the air conditioner cabinet 100. At the same time, since the hot air sent from the lower part of the air conditioner cabinet 100 has a long air supply distance, the phenomenon of temperature stratification in the room can be greatly improved or even avoided.

[0050] Furthermore, if Figure 1 As shown, the width of the air outlet 11 is gradually reduced from top to bottom. In this way, the width of the upper part of the air outlet 11 can be greater than the width of the lower part of the air outlet 11. At the same time, since the width of the air outlet 11 gradually decreases from top to bottom, the flow rate of the airflow delivered by the air outlet 11 gradually increases from top to bottom, thereby reducing the sudden turning of the airflow, thereby reducing the flow loss of the airflow, and further increasing the air supply distance of the air conditioner cabinet 100 and reducing noise.

[0051] Of course, the air outlet 11 may also be configured in other structural forms.

[0052] In another embodiment, if Figure 4 and Figure 5 As shown, the air outlet 11 is arranged in a multi-step ladder shape with a width gradually decreasing from top to bottom. In this way, the width of the upper part of the air outlet 11 can be greater than the width of the lower part of the air outlet 11.

[0053] In this embodiment, further, Figure 4 and Figure 5 As shown, there is a first ratio between the height h1 of the lowest step of the air outlet 11 and the overall height h of the air outlet 11 , and the first ratio is greater than or equal to 0.1 and less than or equal to 0.5.

[0054] It can be understood that if the first ratio is too small, the airflow with high air velocity at the lower part of the air outlet 11 will be too small, which is not enough to drive the airflow with low air velocity at the upper part of the air outlet 11 to move forward, so that the air supply distance of the air conditioner cabinet 100 is not significantly increased; if the first ratio is too large, the airflow with high air velocity at the lower part of the air outlet 11 will be too large and the airflow with low air velocity at the upper part of the air outlet will be too small, which will cause waste. Therefore, in this embodiment, the first ratio is preferably greater than or equal to 0.1 and less than or equal to 0.5.

[0055] In yet another embodiment, Figure 7 and Figure 8 As shown, the air outlet 11 includes a first section 111 and a second section 112 connected to the first section 111, the first section 111 and the second section 112 are connected end to end, and the first section 111 is located above the second section 112;

[0056] The width of the first section 111 remains unchanged, and the width of the second section 112 is gradually decreased from top to bottom; or, the width of the first section 111 is gradually decreased from top to bottom, and the width of the second section 112 remains unchanged.

[0057] In this way, it can also be achieved that the width of the upper portion of the air outlet 11 is greater than the width of the lower portion of the air outlet 11 .

[0058] In this embodiment, further, Figure 7 and Figure 8 As shown, there is a second ratio between the height h1 of the first section 111 and the overall height h of the air outlet 11 , and the second ratio is greater than or equal to 0.1 and less than or equal to 0.5.

[0059] It can be understood that if the second ratio is too small, the airflow with high air velocity at the lower part of the air outlet 11 will be too small, which is not enough to drive the airflow with low air velocity at the upper part of the air outlet 11 to move forward, so that the air supply distance of the air conditioner cabinet 100 is not significantly increased; if the second ratio is too large, the airflow with high air velocity at the lower part of the air outlet 11 will be too large and the airflow with low air velocity at the upper part of the air outlet will be too small, which will cause waste. Therefore, in this embodiment, the second ratio is preferably greater than or equal to 0.1 and less than or equal to 0.5.

[0060] Of course, based on the inventive concept of the present invention, those skilled in the art can easily think of more structural forms of the air outlet 11, which need not be described one by one here.

[0061] The air conditioning cabinet 100 of the present invention can also obtain the best implementation effect by adjusting the ratio of the width of the upper part of the air outlet 11 to the width of the lower part of the air outlet 11 and taking into account the height ratio, so that the air conditioning cabinet 100 can supply air over a long distance and with low noise.

[0062] Furthermore, if Figure 2 and Fig. 9 As shown, the heat exchanger 50 is configured as a single-row heat exchanger.

[0063] In this way, by setting the heat exchanger 50 as a single-row heat exchanger, the air intake resistance of the heat exchanger 50 is small, so that the air intake volume can be increased, thereby increasing the air supply volume and air supply distance of the air conditioning cabinet 100. At the same time, the phenomenon of indoor temperature stratification can be further improved or even eliminated. In addition, setting the heat exchanger 50 as a single-row heat exchanger can make the heat exchange more sufficient, thereby improving the heat exchange efficiency.

[0064] Furthermore, the flow path of the heat exchanger 50 is configured to be bottom-in and top-out.

[0065] In this way, the cooling effect of the air-conditioning cabinet 100 can be guaranteed, and the heating effect of the air-conditioning cabinet 100 can be improved. Specifically, when the air-conditioning cabinet 100 is in the heating mode, since the flow path of the heat exchanger 50 is bottom-in and top-out, the temperature of the air flow passing through the lower part of the heat exchanger 50 is relatively high, and the temperature of the air flow passing through the upper part of the heat exchanger 50 is relatively low, so that the temperature of the air flow flowing out through the lower part of the air outlet 11 is relatively high, and the temperature of the air flow flowing out through the upper part of the air outlet 11 is relatively low, so that the temperature of the air flow in front of the upper part of the air outlet 11 is lower than the temperature of the air flow in front of the lower part of the air outlet 11, so that the hot air flow sent out from the lower part of the air outlet 11 can be suppressed from floating up, so that the hot air flow sent out from the lower part of the air outlet 11 can be sent farther, thereby not only improving the air supply distance of the air-conditioning cabinet 100, but more importantly, it can also form an air supply effect of warm feet and cool head, thereby improving the air supply comfort of the air-conditioning cabinet 100.

[0066] In other embodiments of the present invention, Figure 3 and Fig.10 As shown, in order to achieve the above effects or similar effects, the upper portion of the heat exchanger 50 is arranged in double rows, and the lower portion of the heat exchanger 50 is arranged in single row.

[0067] In this way, the lower part of the heat exchanger 50 is arranged in a single row, which can reduce the resistance of the lower part of the crossflow impeller 20 when sucking air, increase the air intake, and thus increase the air volume generated by the lower part of the crossflow impeller, thereby increasing the air supply volume, air supply speed and air supply distance of the lower part of the air conditioning cabinet 100, so that when the air conditioning cabinet 100 is heating, the air supply distance of the air conditioning cabinet 100 can be further increased, and the air supply comfort of the air conditioning cabinet 100 can be further improved. At the same time, the phenomenon of indoor temperature stratification can be further improved or even eliminated.

[0068] In this embodiment, further, the heat exchanger 50 is configured such that a third ratio exists between a height H1 of a single-row portion and a height H of the heat exchanger 50 , and the third ratio is greater than or equal to 0.1 and less than 1.

[0069] It is understandable that if the third ratio is too small, the above effect will not be obvious, and if the third ratio is too large, the effect of the double-row part cannot be reflected. Therefore, the third ratio is preferably greater than or equal to 0.2 and less than 0.8.

[0070] Similarly, in this embodiment, the flow path of the heat exchanger 50 is also set to enter from the bottom and exit from the top. In this way, the cooling effect of the air-conditioning cabinet 100 can be guaranteed, and the heating effect of the air-conditioning cabinet 100 can be improved. Specifically, when the air-conditioning cabinet 100 is in the heating mode, the air flow temperature in front of the upper part of the air outlet 11 is lower than the air flow temperature in front of the lower part of the air outlet 11, thereby suppressing the floating of the hot air flow sent out from the lower part of the air outlet 11, so that the hot air flow sent out from the lower part of the air outlet 11 can be sent farther, thereby not only increasing the air supply distance of the air-conditioning cabinet 100, but more importantly, it can also form an air supply effect of warming the feet and cooling the head, thereby improving the air supply comfort of the air-conditioning cabinet 100.

[0071] In this embodiment, if the air outlet 11 is arranged in a two-step ladder-like arrangement with a gradually decreasing width from top to bottom, the heat exchanger 50 corresponding to the upper-step sub-air outlet can be arranged in double rows, and the heat exchanger 50 corresponding to the lower-step sub-air outlet can be arranged in a single row. If the air outlet 11 is arranged as a first section 111 and a second section 112 connected end to end, the heat exchanger 50 corresponding to the first section 111 can be arranged in double rows, and the heat exchanger 50 corresponding to the second section 112 can be arranged in a single row.

[0072] In a specific embodiment, Figure 2 , Figure 3 , Fig. 9 as well as Fig.10As shown, the heat exchanger 50 is preferably a "U"-shaped heat exchanger extending vertically and opening forward. The heat exchanger 50 is erected in the shell 10, and the crossflow impeller 20 is located on the front inner side of the heat exchanger 50, thereby increasing the heat exchange area of ​​the heat exchanger 50 and improving the air circulation of the heat exchanger 50, thereby improving the heat exchange efficiency of the heat exchanger 50.

[0073] Of course, in other embodiments, the heat exchanger 50 may also be a flat plate heat exchanger or a “V” shaped heat exchanger.

[0074] Furthermore, if Fig.11 As shown, the crossflow wind wheel 20 includes a first sub-wind wheel 21 and a second sub-wind wheel 22 arranged from top to bottom, the lower end of the first sub-wind wheel 21 is connected to the upper end of the second sub-wind wheel 22, the first sub-wind wheel 21 and the second sub-wind wheel 22 are coaxially arranged, the diameter of the first sub-wind wheel 21 is the same as the diameter of the second sub-wind wheel 22, and the blade chord length L1 of the first sub-wind wheel 21 is smaller than the blade chord length L2 of the second sub-wind wheel 22.

[0075] It can be understood that the first sub-wind wheel 21 and the second sub-wind wheel 22 are coaxially arranged and connected together, so when the crossflow wind wheel 20 rotates, the first sub-wind wheel 21 and the second sub-wind wheel 22 rotate at the same speed. Because the diameter of the first sub-wind wheel 21 is the same as the diameter of the second sub-wind wheel 22, and the blade chord length L2 of the second sub-wind wheel 22 is greater than the blade chord length L1 of the first sub-wind wheel 21, the air volume generated by the second sub-wind wheel 22 when it rotates is greater than the air volume generated by the first sub-wind wheel 21 when it rotates, so that the average air volume and the average air speed at the lower part of the air outlet 11 are higher than the average air volume and the average air speed at the upper part of the air outlet 11, and the air flow with a higher speed can produce a suction effect, driving the surrounding air flow to move in the same direction, thereby also causing the hot air with a higher wind speed at the lower part of the air outlet 11 to suck the surrounding air flow forward or forward and downward, so that when the air-conditioning cabinet 100 is heating, the upward movement trend of the hot air can be suppressed, and the hot air delivered from the lower part of the air outlet 11 of the air-conditioning cabinet 100 can be avoided from moving upward too early, thereby increasing the air supply distance of the air-conditioning cabinet 100, and further improving the air supply comfort of the air-conditioning cabinet 100. At the same time, since the hot air delivered from the lower part of the air outlet 11 of the air-conditioning cabinet 100 has a long air delivery distance, it can greatly improve or even avoid the temperature stratification phenomenon in the room, thereby making the temperature in the lower part of the room high, achieving a warm effect, and thus improving the user experience of the air-conditioning cabinet 100.

[0076] That is to say, by making the diameter of the first sub-wind wheel 21 the same as the diameter of the second sub-wind wheel 22 and the blade chord length L2 of the second sub-wind wheel 22 larger than the blade chord length L1 of the first sub-wind wheel 21, the average air volume and the average air speed at the lower part of the air outlet 11 can be made higher than the average air volume and the average air speed at the upper part of the air outlet 11, thereby increasing the air supply distance of the air-conditioning cabinet 100 and further improving the air supply comfort of the air-conditioning cabinet 100.

[0077] Specifically, if the air outlet 11 is arranged in a two-step ladder-like arrangement with a width gradually decreasing from top to bottom, the first sub-wind wheel 21 can be arranged corresponding to the upper sub-air outlet, and the second sub-wind wheel 22 can be arranged corresponding to the lower sub-air outlet. If the air outlet 11 is arranged as a first section 111 and a second section 112 connected end to end, the first sub-wind wheel 21 can be arranged corresponding to the first section 111, and the second sub-wind wheel 22 can be arranged corresponding to the second section 112.

[0078] Of course, other designs may be used to achieve the above effects or similar effects.

[0079] For example, in some embodiments of the present invention, the cross-flow wind wheel 20 includes a first sub-wind wheel 21 and a second sub-wind wheel 22 arranged from top to bottom, the lower end of the first sub-wind wheel 21 is connected to the upper end of the second sub-wind wheel 22, the first sub-wind wheel 21 and the second sub-wind wheel 22 are coaxially arranged, and the blade distribution density of the first sub-wind wheel 21 is less than the blade distribution density of the second sub-wind wheel 22.

[0080] It can be understood that in this embodiment, the first sub-wind wheel 21 and the second sub-wind wheel 22 are coaxially arranged, and the first sub-wind wheel 21 and the second sub-wind wheel 22 are connected together, so when the cross-flow wind wheel 20 rotates, the first sub-wind wheel 21 and the second sub-wind wheel 22 rotate at the same speed. Because the blade distribution density of the second sub-wind wheel 22 is greater than the blade distribution density of the first sub-wind wheel 21, the air volume generated by the second sub-wind wheel 22 can be greater than the air volume generated by the first sub-wind wheel 21, so that the air supply volume and air supply speed at the lower part of the air outlet 11 can be higher than the air supply volume and air supply speed at the upper part of the air outlet 11, so that the hot air with a higher wind speed in front of the lower part of the air outlet 11 sucks the surrounding air flow forward or forward and downward, thereby suppressing the upward movement trend of the hot air, so that the air supply distance of the air-conditioning cabinet 100 can be longer, so that when the air-conditioning cabinet 100 is heating, the hot air delivered from the lower part of the air outlet 11 of the air-conditioning cabinet 100 can be avoided from moving upward too early, thereby increasing the air supply distance of the air-conditioning cabinet 100, and further improving the air supply comfort of the air-conditioning cabinet 100. At the same time, since the hot air delivered from the lower part of the air outlet 11 of the air-conditioning cabinet 100 has a long air delivery distance, it can greatly improve or even avoid the temperature stratification phenomenon in the room, thereby making the temperature in the lower part of the room high, achieving a warm effect, and thus improving the user experience of the air-conditioning cabinet 100.

[0081] For example, in some other embodiments of the present invention, Fig.12 As shown, the cross-flow wind wheel 20 includes a first sub-wind wheel 21 and a second sub-wind wheel 22 arranged from top to bottom, the lower end of the first sub-wind wheel 21 is connected to the upper end of the second sub-wind wheel 22, the first sub-wind wheel 21 and the second sub-wind wheel 22 are coaxially arranged, and the diameter of the first sub-wind wheel 21 is smaller than the diameter of the second sub-wind wheel 22.

[0082] It can be understood that in this embodiment, the first sub-wind wheel 21 and the second sub-wind wheel 22 are coaxially arranged, and the first sub-wind wheel 21 and the second sub-wind wheel 22 are connected together, so when the cross-flow wind wheel 20 rotates, the first sub-wind wheel 21 and the second sub-wind wheel 22 rotate at the same speed. Because the diameter of the first sub-wind wheel 21 is smaller than the diameter of the second sub-wind wheel 22, the air volume generated by the second sub-wind wheel 22 can be greater than that generated by the first sub-wind wheel 21, so that the air supply volume and air supply speed at the lower part of the air outlet 11 can be higher than the air supply volume and air supply speed at the upper part of the air outlet 11, so that the hot air with a higher wind speed in front of the lower part of the air outlet 11 sucks the surrounding air flow forward or forward and downward, thereby suppressing the upward movement trend of the hot air, so that the air supply distance of the air-conditioning cabinet 100 can be longer, so that when the air-conditioning cabinet 100 is heating, the hot air delivered from the lower part of the air outlet 11 of the air-conditioning cabinet 100 can be avoided from moving upward too early, thereby increasing the air supply distance of the air-conditioning cabinet 100, and further improving the air supply comfort of the air-conditioning cabinet 100. At the same time, since the hot air delivered from the lower part of the air outlet 11 of the air-conditioning cabinet 100 has a long air delivery distance, it can greatly improve or even avoid the temperature stratification phenomenon in the room, thereby making the temperature in the lower part of the room high, achieving a warm effect, and thus improving the user experience of the air-conditioning cabinet 100.

[0083] Furthermore, since the air volume generated by the second sub-wind wheel 22 is greater than the air volume generated by the first sub-wind wheel 21, the resistance encountered by the second sub-wind wheel 22 during its rotation is greater than the resistance encountered by the first sub-wind wheel 21 during its rotation, which makes the force applied to the second sub-wind wheel 22 and the first sub-wind wheel 21 uneven, making it easy for the cross-flow wind wheel 20 to deform or break, thereby affecting the service life of the cross-flow wind wheel 20.

[0084] To solve this problem, Fig.13 As shown, the air conditioning cabinet 100 also includes a limiting partition 30, and the limiting partition 30 is fixed in the shell 10; an avoidance hole 31 is opened on the limiting partition 30, and the cross-flow wind wheel 20 is arranged in the avoidance hole 31, and the limiting partition 30 is arranged near the connection between the first sub-wind wheel 21 and the second sub-wind wheel 22, and the limiting partition 30 is rotatably connected to the cross-flow wind wheel 20.

[0085] In this way, by setting the limiting baffle 30 and making the limiting baffle 30 rotatably connected to the crossflow wind wheel 20, the limiting baffle 30 can limit the crossflow wind wheel 20, so as to buffer the force received by the crossflow wind wheel 20 when rotating, thereby reducing the risk of deformation and damage of the crossflow wind wheel 20, and improving the service life of the crossflow wind wheel 20; and the limiting baffle 30 is set close to the connection between the first sub-wind wheel 21 and the second sub-wind wheel 22, which can achieve the above effect to a greater extent. At the same time, by setting the limiting baffle 30, the peripheral space of the first sub-wind wheel 21 and the second sub-wind wheel 22 can be separated, so as to reduce the frequency of the occurrence of phenomena such as airflow separation, de-flow, and vortex, thereby reducing noise.

[0086] Specifically, the limiting partition plate 30 is sleeved on the first sub-wind wheel 21 or the second sub-wind wheel 22 , and the limiting partition plate 30 is rotatably connected to the first sub-wind wheel 21 or the second sub-wind wheel 22 .

[0087] Specifically, the air conditioning cabinet 100 also includes a limit bearing (not shown), which is located between the cross-flow wind wheel 20 (the first sub-wind wheel 21 or the second sub-wind wheel 22) and the limit partition 30, and the inner ring of the limit bearing is fixedly connected to the outer peripheral surface of the cross-flow wind wheel 20 (the first sub-wind wheel 21 or the second sub-wind wheel 22), and the outer ring of the limit bearing is fixedly connected to the inner wall surface of the limit through hole 31. In this way, the limit partition 30 can be rotatably connected to the cross-flow wind wheel 20 (the first sub-wind wheel 21 or the second sub-wind wheel 22). At the same time, by connecting the cross-flow wind wheel 20 (the first sub-wind wheel 21 or the second sub-wind wheel 22) and the limit partition 30 through the limit bearing, the cross-flow wind wheel 20 (the first sub-wind wheel 21 or the second sub-wind wheel 22) and the limit partition 30 can be made simple in structure.

[0088] In other embodiments of the present invention, the limiting partition 30 can also be rotatably connected to the crossflow wind wheel 20 in other ways. Specifically, an annular ring groove (not shown) is formed on the outer peripheral surface of the crossflow wind wheel 20 (the first sub-wind wheel 21 or the second sub-wind wheel 22), and the annular ring groove is arranged near the connection between the first sub-wind wheel 21 and the second sub-wind wheel 22, and the inner edge of the limiting partition 30 is rotatably installed in the annular slide groove; in order to reduce the friction between the inner edge of the limiting partition 30 and the annular slide groove 222, the air conditioning cabinet 100 also includes a limiting ball (not shown), and the limiting ball is arranged between the inner wall surface of the annular slide groove and the outer surface of the inner edge of the limiting partition 30.

[0089] Furthermore, if Figure 2 and Figure 3As shown, the volute assembly 40 has a first air duct 41 and a second air duct 42 arranged in the up-down direction, the diffuser section of the first air duct 41 is connected to the upper part of the air outlet 11, the diffuser section of the second air duct 41 is connected to the lower part of the air outlet 11, and the width of the diffuser section of the first air duct 41 is greater than the width of the diffuser section of the second air duct 42.

[0090] In this way, the first air duct 41 can be matched with the upper part of the air outlet 11, and the second air duct 42 can be matched with the lower part of the air outlet 11, so that a continuous normal flow channel can be formed, thereby reducing the flow loss of the airflow and reducing the noise.

[0091] Specifically, if the air outlet 11 is configured to be a two-step staircase arrangement with a width gradually decreasing from top to bottom, the first air duct 41 can be connected to the upper step sub-air outlet, and the second air duct 42 can be connected to the lower step sub-air outlet. If the air outlet 11 is configured to be a first section 111 and a second section 112 connected end to end, the first air duct 41 can be connected to the first section 111, and the second air duct 42 can be connected to the second section 112.

[0092] Specifically, Figure 2 and Figure 3 As shown, the volute assembly 40 also includes a volute and a volute tongue;

[0093] The volute tongue comprises an upper volute tongue 43 and a lower volute tongue 44 connected to each other, the projection of the root 431 of the upper volute tongue on the horizontal plane coincides with the projection of the root 441 of the lower volute tongue on the horizontal plane, and the projection of the diffuser section 432 of the upper volute tongue on the horizontal plane is located inside the projection of the diffuser section 442 of the lower volute tongue on the horizontal plane;

[0094] The volute comprises an upper volute 45 and a lower volute 46 which are respectively arranged corresponding to the upper volute tongue 43 and the lower volute tongue 44 and connected up and down, the projection of the air induction section 451 of the upper volute on the horizontal plane coincides with the projection of the air induction section 461 of the lower volute on the horizontal plane, and the projection of the diffuser section 452 of the upper volute on the horizontal plane is located on the inner side of the projection of the diffuser section 462 of the lower volute on the horizontal plane;

[0095] The first air duct 41 is disposed between the upper volute tongue 43 and the upper volute 45 , and the second air duct 42 is disposed between the upper volute 44 and the lower volute 46 .

[0096] In this way, the width of the expansion section of the first air duct 41 can be greater than the width of the expansion section of the second air duct 42. At the same time, it is also helpful to simplify the structure of the volute assembly 40 and facilitate the manufacture of the volute assembly 40.

[0097] The present invention also proposes an air conditioner, which includes an outdoor unit and an air conditioning cabinet as described above. The specific structure of the air conditioning cabinet refers to the above embodiment. Since the air conditioner of the present invention adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0098] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air conditioning cabinet, comprising a housing and a crossflow impeller erected in the housing, characterized in that: The front part of the shell has an air outlet extending in the up-down direction, the width of the upper part of the air outlet is greater than the width of the lower part of the air outlet, and the crossflow impeller is arranged corresponding to the air outlet so that the average speed of the air outflowing from the lower part of the air outlet is greater than the average speed of the air outflowing from the upper part of the air outlet, so that the airflow with higher speed outflowing from the lower part of the air outlet can produce a suction effect, driving the surrounding airflow to move in the same direction; The air outlet is arranged in a multi-step manner with a width gradually decreasing from top to bottom; Alternatively, the air outlet includes a first section and a second section connected to the first section, and the first section is located above the second section; the width of the first section remains unchanged, and the width of the second section is gradually decreased from top to bottom; or, the width of the first section is gradually decreased from top to bottom, and the width of the second section remains unchanged; The air conditioning cabinet also includes a heat exchanger, and the flow path of the heat exchanger is arranged to enter from the bottom and exit from the top.

2. The air conditioning cabinet according to claim 1, characterized in that: When "the air outlet is arranged in a multi-step stepped manner with the width gradually decreasing from top to bottom", there is a first ratio between the height of the lowest step of the air outlet and the height of the air outlet, and the first ratio is greater than or equal to 0.1 and less than or equal to 0.

5.

3. The air conditioning cabinet according to claim 1, characterized in that: When "the air outlet includes a first section and a second section connected to the first section, and the first section is located above the second section; the width of the first section remains unchanged, and the width of the second section is gradually decreased from top to bottom; or, the width of the first section is gradually decreased from top to bottom, and the width of the second section remains unchanged", there is a second ratio between the height of the first section and the height of the air outlet, and the second ratio is greater than or equal to 0.1 and less than or equal to 0.

5.

4. The air conditioning cabinet according to any one of claims 1 to 3, characterized in that: The heat exchanger is configured as a single-row heat exchanger.

5. The air conditioning cabinet according to any one of claims 1 to 3, characterized in that: The upper portion of the heat exchanger is arranged in double rows, and the lower portion of the heat exchanger is arranged in single row.

6. The air conditioning cabinet according to claim 4, characterized in that: The heat exchanger is configured such that a third ratio exists between the height of a single-row portion and the height of the heat exchanger, and the third ratio is greater than or equal to 0.1 and less than 1.

7. The air conditioning cabinet according to any one of claims 1 to 3, characterized in that: The crossflow wind wheel includes a first sub-wind wheel and a second sub-wind wheel arranged from top to bottom, the lower end of the first sub-wind wheel is connected to the upper end of the second sub-wind wheel, the first sub-wind wheel and the second sub-wind wheel are coaxially arranged, and the diameter of the first sub-wind wheel is smaller than the diameter of the second sub-wind wheel.

8. The air conditioning cabinet according to any one of claims 1 to 3, characterized in that: The crossflow wind wheel includes a first sub-wind wheel and a second sub-wind wheel arranged from top to bottom, the lower end of the first sub-wind wheel is connected to the upper end of the second sub-wind wheel, the first sub-wind wheel and the second sub-wind wheel are coaxially arranged, the diameter of the first sub-wind wheel is the same as the diameter of the second sub-wind wheel, and the blade chord length of the first sub-wind wheel is smaller than the blade chord length of the second sub-wind wheel.

9. The air conditioning cabinet according to any one of claims 1 to 3, characterized in that: The crossflow wind wheel includes a first sub-wind wheel and a second sub-wind wheel arranged from top to bottom, the lower end of the first sub-wind wheel is connected to the upper end of the second sub-wind wheel, the first sub-wind wheel and the second sub-wind wheel are coaxially arranged, and the blade distribution density of the first sub-wind wheel is less than the blade distribution density of the second sub-wind wheel.

10. The air conditioning cabinet according to any one of claims 1 to 3, characterized in that: The air conditioning cabinet also includes a volute assembly, which has a first air duct and a second air duct arranged in an up-down direction, the diffuser section of the first air duct is connected to the upper part of the air outlet, the diffuser section of the second air duct is connected to the lower part of the air outlet, and the width of the diffuser section of the first air duct is greater than the width of the diffuser section of the second air duct.

11. The air conditioning cabinet according to claim 10, characterized in that: The volute assembly comprises a volute and a volute tongue; The volute tongue comprises an upper volute tongue and a lower volute tongue connected up and down, the projection of the root of the upper volute tongue on the horizontal plane coincides with the projection of the root of the lower volute tongue on the horizontal plane, and the projection of the diffuser section of the upper volute tongue on the horizontal plane is located inside the projection of the diffuser section of the lower volute tongue on the horizontal plane; The volute comprises an upper volute and a lower volute which are respectively arranged corresponding to the upper volute tongue and the lower volute tongue and are connected up and down, the projection of the air induction section of the upper volute on the horizontal plane coincides with the projection of the air induction section of the lower volute on the horizontal plane, and the projection of the expansion section of the upper volute on the horizontal plane is located on the inner side of the projection of the expansion section of the lower volute on the horizontal plane; Wherein, the first air duct is arranged between the upper volute tongue and the upper volute, and the second air duct is arranged between the upper volute and the lower volute.

12. An air conditioner, characterized in that: It comprises an air conditioning cabinet as described in any one of claims 1 to 11.

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