air conditioner

Abstract

The present invention provides an air conditioner comprising: a body, a main air duct disposed therein, the main air duct having an air inlet for introducing airflow and an air outlet for discharging airflow; an auxiliary air duct, the air inlet end of the auxiliary air duct being connected to the outdoor airflow, and the air outlet end of the auxiliary air duct being connected to the main air duct; wherein the auxiliary air duct includes multiple air inlet branches, each of which is provided with an air outlet. The present invention solves the problem of insufficient fresh air volume in conventional air conditioners, which reduces the user comfort of the air conditioner.

Description

Technical Field

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

[0002] With the progress and development of society, people have higher and higher requirements for the quality of life, among which air conditioners have become an indispensable household appliance.

[0003] At present, when an air conditioner with a fresh air function uses the fresh air mode, the pressure of the fresh air is too low and the blowing distance is limited. Users who are far away from the air outlet of the air conditioner cannot feel the fresh air blowing out. They need to use an air conditioning circulation fan or a tower fan to increase the air supply volume and air supply distance, resulting in insufficient fresh air volume in the room and a low fresh air outlet temperature, which reduces the user's comfort when using the air conditioner. Summary of the Invention

[0004] The main purpose of the present invention is to provide an air conditioner to solve the problem in the prior art that the fresh air volume of the air conditioner is insufficient, resulting in reduced comfort in use of the air conditioner.

[0005] In order to achieve the above-mentioned purpose, the present invention provides an air conditioner, comprising: a body, a main air duct is arranged in the body, the main air duct has an air inlet for introducing air flow and an air outlet for discharging air flow; an auxiliary air duct, the air inlet end of the auxiliary air duct is used to communicate with the outdoor air flow, and the air outlet end of the auxiliary air duct is connected to the main air duct; wherein, the auxiliary air duct includes multiple air inlet branches, and each air inlet branch is provided with an air outlet.

[0006] Furthermore, the auxiliary air duct also includes: an air inlet main path, the air inlet end of the auxiliary air duct is arranged on the air inlet main path, and each air inlet branch path is connected to an end of the air inlet main path away from the air inlet end.

[0007] Furthermore, the air conditioner also includes: an air inlet main pipe, the main air inlet path is the pipe cavity of the air inlet main pipe; multiple air inlet branch pipes, each air inlet branch pipe is connected to the air inlet main pipe, the multiple air inlet branch pipes are arranged in a one-to-one correspondence with the multiple air inlet branches, and each air inlet branch is the pipe cavity of the corresponding air inlet branch pipe.

[0008] Furthermore, the air conditioner also includes: multiple air guide components, each air guide component is arranged in the body, each air guide component has a guide air duct, multiple air guide components are arranged in a one-to-one correspondence with multiple air inlet branches, and the two ends of each guide air duct are respectively connected to the corresponding air inlet branch and the main air duct.

[0009] Furthermore, the air guide assembly also includes: a guide body, the guide air duct is arranged in the guide body, a connecting port is provided on the guide body, and the corresponding air inlet branch is connected with the guide air duct through the connecting port; a centrifugal fan blade is arranged in the guide air duct, and the centrifugal fan blade is rotatably arranged around a predetermined axis to guide the airflow in the guide air duct to the main air duct.

[0010] Furthermore, the multiple air inlet branches include a first air inlet branch and a second air inlet branch; the multiple air guide components include a first air guide component and a second air guide component arranged at intervals along the extension direction of the body: the first air guide component has a first guide air duct, and the two ends of the first guide air duct are respectively connected to the first air inlet branch and the main air duct; the second air guide component has a second guide air duct, and the two ends of the second guide air duct are respectively connected to the second air inlet branch and the main air duct.

[0011] Furthermore, the first air guide assembly includes a first centrifugal fan blade, which is arranged in the first guide air duct; the second air guide assembly includes a second centrifugal fan blade, which is arranged in the second guide air duct; the air conditioner also includes: a driving component, the driving component includes a first driving shaft and a second driving shaft, the first driving shaft is drivingly connected to the first centrifugal fan blade, and the second driving shaft is drivingly connected to the second centrifugal fan blade.

[0012] Furthermore, the orthographic projection of the first air guide component on the horizontal plane coincides with the orthographic projection of the second air guide component on the horizontal plane, and the first air guide component and the second air guide component are both centrifugal fans; the air conditioner also includes: a cross-flow fan, arranged in the main air duct, the cross-flow fan extends along the length direction of the body, and the cross-flow fan includes a cross-flow fan blade and a first volute tongue; along the outflow direction of the air flow, the first volute tongue includes a first connecting end and a second connecting end arranged oppositely, and the volute of the centrifugal fan includes a third connecting end and a fourth connecting end arranged oppositely; the horizontal line segment between the axis of the cross-flow fan blade and the first connecting end of the first volute tongue is a, and the horizontal line segment between the axis of the cross-flow fan blade and the fourth connecting end of the volute of the centrifugal fan is b; the angle between the straight line where the line segment a is located and the straight line where the line segment b is located is β, and the range of angle β is 15° to 30°.

[0013] Furthermore, along the outflow direction of the airflow, the second volute tongue of the centrifugal fan includes a fifth connecting end and a sixth connecting end that are relatively arranged; the horizontal line segment between the axis of the centrifugal fan and the fourth connecting end of the volute of the centrifugal fan is d, the horizontal line segment between the axis of the centrifugal fan and the fifth connecting end of the second volute tongue is c, and the angle between the straight line where the line segment d is located and the straight line where the line segment c is located is α; the range of angle α is 30° to 60°.

[0014] Furthermore, the diameter of the centrifugal fan blades is The diameter of the crossflow blade is The horizontal distance between the axis of the centrifugal fan blade and the axis of the crossflow fan blade is L; The range is 94mm~103mm; The range of is 78mm~82mm; the range of L is 94mm~221mm.

[0015] Furthermore, along the outflow direction of the airflow, the volute of the cross-flow fan includes a seventh connecting end and an eighth connecting end relatively arranged, the horizontal line segment between the axial center line of the cross-flow blade and the seventh connecting end of the volute of the cross-flow fan is e, and the angle between the straight line where the line segment e is located and the straight line where the line segment a is located ranges from 178° to 185°.

[0016] Furthermore, the air conditioner further comprises: an evaporator component, which is arranged in the main air duct, and the air outlet end of the auxiliary air duct is located on a side of the evaporator component close to the air inlet of the main air duct.

[0017] Furthermore, the evaporator component also includes: an evaporator bracket, which is arranged in the main air duct and is used to install the evaporator; an opening is provided on the evaporator bracket, the opening is opposite to the evaporator, the air outlet end of the auxiliary air duct is connected to the opening, and the air flow in the auxiliary air duct flows through the evaporator and then flows into the main air duct.

[0018] The technical solution of the present invention is applied to an air conditioner including a main air duct, the main air duct having an air inlet for introducing airflow and an air outlet for discharging airflow; the air inlet end of the auxiliary air duct is used to communicate with the outdoor airflow, and the air outlet end of the auxiliary air duct is connected to the main air duct; wherein the auxiliary air duct includes multiple air inlet branches, each of which is provided with an air outlet. By providing multiple air inlet branches, each of which is connected to the main air duct, during the operation of the air conditioner, fresh air is supplied to the main air duct by the multiple air inlet branches, thereby increasing the amount of fresh air in the room. At the same time, after the fresh air mixes with the existing airflow in the main air duct, the pressure is increased, which increases the air supply distance of the air conditioner, thereby improving the user comfort of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 Shows a structural exploded view of an embodiment of an air conditioner according to the present invention;

[0021] Figure 2 A schematic diagram showing the cooperation between the evaporator bracket and the auxiliary air duct of the air conditioner according to the present invention is shown;

[0022] Figure 3A schematic diagram showing the air flow direction of the air conditioner according to the present invention is shown;

[0023] Figure 4 A schematic cross-sectional view of an air conditioner according to the present invention is shown. Figure 1 ;

[0024] Figure 5 A schematic cross-sectional view of an air conditioner according to the present invention is shown. Figure 2 .

[0025] The above drawings include the following reference numerals:

[0026] 1. Machine body; 100. Air inlet panel; 200. Air outlet panel; 300. Air inlet main pipe; 310. Air inlet branch pipe; 10. Main air duct; 11. Air inlet; 12. Air outlet;

[0027] 2. Auxiliary air duct; 201. Air inlet; 202. Air outlet; 20. Main air inlet; 21. Branch air inlet; 210. First branch air inlet; 211. Second branch air inlet;

[0028] 3. Evaporator component; 30. Evaporator bracket; 31. Evaporator; 301. Opening;

[0029] 4. Air guide assembly; 40. Air guide duct; 41. Air guide body; 410. Communication port; 42. Centrifugal blade; 43. Second volute tongue; 430. Fifth connection end; 431. Sixth connection end; 44. First air guide assembly; 440. First air guide duct; 45. Second air guide assembly; 450. Second air guide duct; 441. First centrifugal blade; 451. Second centrifugal blade; 46. Third connection end; 47. Fourth connection end;

[0030] 5. Driving component; 51. First driving shaft; 52. Second driving shaft; 6. Crossflow fan; 60. Crossflow blade; 61. First volute tongue; 610. First connecting end; 611. Second connecting end; 62. Seventh connecting end; 63. Eighth connecting end. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Please refer to Figures 1 to 5The present invention provides an air conditioner, comprising: a body 1, a main air duct 10 is provided in the body 1, the main air duct 10 has an air inlet 11 for introducing air flow and an air outlet 12 for discharging air flow; an auxiliary air duct 2, an air inlet end 201 of the auxiliary air duct 2 is used to communicate with the outdoor air flow, and an air outlet end 202 of the auxiliary air duct 2 is connected to the main air duct 10; wherein, the auxiliary air duct 2 includes a plurality of air inlet branches 21, and each air inlet branch 21 is provided with an air outlet.

[0033] The air conditioner provided by the present invention includes a body 1 and an auxiliary air duct 2. The body 1 is provided with a main air duct 10, and the main air duct 10 has an air inlet 11 for introducing air flow and an air outlet 12 for discharging air flow. The air inlet end 201 of the auxiliary air duct 2 is used to communicate with the outdoor air flow, and the air outlet end 202 of the auxiliary air duct 2 is connected to the main air duct 10. The auxiliary air duct 2 includes a plurality of air inlet branches 21, each of which is provided with an air outlet. By providing a plurality of air inlet branches 21, and by connecting the plurality of air inlet branches 21 to the main air duct 10, during the operation of the air conditioner, fresh air is supplied to the main air duct 10 by the plurality of air inlet branches 21, thereby increasing the amount of fresh air in the room. At the same time, after the fresh air mixes with the original air flow in the main air duct 10, the pressure is increased, thereby increasing the air supply distance of the air conditioner, thereby improving the user comfort of the air conditioner.

[0034] Specifically, the auxiliary air duct 2 further includes a main air inlet path 20. An air inlet end 201 of the auxiliary air duct 2 is disposed on the main air inlet path 20, and each of the branch air inlets 21 is connected to an end of the main air inlet path 20 remote from the air inlet end 201. This configuration simplifies the structure and reduces the workload of assembling multiple branch air inlets 21 during air conditioner assembly. Furthermore, the provision of the main air inlet path 20 allows outdoor fresh air to flow into the main air inlet path 20 in a concentrated manner, and then into the main air duct 10 through the multiple branch air inlets 21, further increasing the indoor fresh air flow rate.

[0035] In a specific application, the air conditioner further includes: an air inlet main pipe 300, wherein the main air inlet path 20 is a lumen of the air inlet main pipe 300; and a plurality of air inlet branch pipes 310, each of which is connected to the air inlet main pipe 300. The plurality of air inlet branch pipes 310 are provided in a one-to-one correspondence with the plurality of air inlet branch paths 21, and each air inlet branch 21 is a lumen of a corresponding air inlet branch pipe 310. This arrangement facilitates assembly of the air conditioner, as there is no need to provide a passage in the air conditioner body. The air inlet main pipe 300 and the air inlet branch pipes 310 can be directly assembled within the air conditioner body 1, thereby introducing outdoor fresh air. Simultaneously, the plurality of air inlet branch pipes 310 are provided to enable independent operation of each air inlet branch 21. If any air inlet branch 21 becomes blocked or malfunctions, the other air inlet branches 21 can continue to operate. During maintenance, only the air inlet branch pipe 310 corresponding to the malfunctioning air inlet branch 21 needs to be removed for repair, without affecting the normal operation of the air conditioner. Preferably, the air conditioner further comprises a filter component, which is arranged in the air inlet main pipe 300 at one end close to the air inlet end 201 to filter the outdoor fresh air.

[0036] Among them, a plurality of flow openings are provided on the tube body of the air inlet main pipe 300, and the air inlet main pipe 300 is connected with the air inlet branch pipe 310 through the flow openings. The plurality of flow openings are provided in a one-to-one correspondence with the plurality of air inlet branch pipes 310. The air conditioner also includes a sliding baffle, which can be slidably provided on the air inlet main pipe 300 to block or avoid the flow opening. A first protrusion and a second protrusion are provided on the air inlet main pipe 300, and the first protrusion and the second protrusion are respectively located on both sides of the flow opening. A first bayonet is provided on the first protrusion, and at least a portion of the sliding baffle is clamped in the first bayonet so that the sliding baffle is in a avoidance position for avoiding the flow opening. At this time, the airflow in the air inlet main pipe 300 flows normally into the air inlet branch pipe 310; a second bayonet is provided on the second protrusion, and at least a portion of the sliding baffle is clamped in the second bayonet so that the sliding baffle is in a blocking position for blocking the flow opening. During use, when one of the air inlet branch pipes 310 fails, the staff will remove the corresponding air inlet branch pipe 310 and slide the sliding baffle to a position where it engages with the second opening. At this time, the airflow in the air inlet main pipe 300 can flow normally into other air inlet branch pipes 310 without affecting the normal operation of the air conditioner.

[0037] In this application, if Figure 2As shown, in order to introduce outdoor fresh air into the main air duct 10, the air conditioner further includes: multiple air guide components 4, each of which is arranged in the body 1, and each of which has a guide air duct 40. The multiple air guide components 4 are arranged in a one-to-one correspondence with the multiple air inlet branches 21, and the two ends of each guide air duct 40 are respectively connected to the corresponding air inlet branch 21 and the main air duct 10. Under the action of the air guide components 4, the airflow in the main air inlet path 20 is respectively introduced into each air inlet branch 21, thereby increasing the flow rate of the airflow in the air inlet branch 21 and making the multiple air inlet branches 21 work together to increase the amount of fresh air flowing into the main air duct 10.

[0038] Specifically, the air guide assembly 4 further includes: a guide body 41, in which the guide air duct 40 is disposed. The guide body 41 is provided with a communication port 410, through which the corresponding air inlet branch 21 communicates with the guide air duct 40; and centrifugal blades 42, which are disposed in the guide air duct 40 and rotatably arranged about a predetermined axis to guide the airflow in the guide air duct 40 to the main air duct 10. The centrifugal force generated by the centrifugal blades 42 during rotation draws the airflow in the air inlet branch 21 into the guide air duct 40, where it is then directed into the main air duct 10 to mix with the airflow in the main air duct 10. The guide body 41 is a volute, with a volute cover fastened thereto. The guide air duct 40 is located between the volute and the volute cover, and the volute and the volute cover are interference-fitted. A sealing sponge is provided on the connecting end surface of the volute and the volute cover to seal the guide air duct 40. Preferably, the air inlet branch pipe 310 is threadedly connected to the guide body 41 so that the air inlet branch 21 is connected to the connecting port 410. Furthermore, the connecting port 410 is provided on the volute cover, and the air inlet branch pipe 310 is threadedly connected to the volute cover.

[0039] In the embodiments provided by the present invention, Figure 2 As shown, the plurality of air inlet branches 21 include a first air inlet branch 210 and a second air inlet branch 211, which are spaced apart along the extension direction of the housing 1. The plurality of air guide assemblies 4 include a first air guide assembly 44 and a second air guide assembly 45, which are spaced apart along the extension direction of the housing 1. The first air guide assembly 44 includes a first air guide duct 440, the two ends of which are respectively connected to the first air inlet branch 210 and the main air duct 10. The second air guide assembly 45 includes a second air guide duct 450, the two ends of which are respectively connected to the second air inlet branch 211 and the main air duct 10. The plurality of air inlet branches 21 are preferably two, with the first air inlet branch 210 and the second air inlet branch 211 spaced apart along the extension direction of the housing 1. This makes the overall structure of the air conditioner more compact and the arrangement of the air inlet branches 21 more reasonable.

[0040] Furthermore, the first air guide assembly 44 includes a first centrifugal fan blade 441, which is disposed within the first guide air duct 440. The second air guide assembly 45 includes a second centrifugal fan blade 451, which is disposed within the second guide air duct 450. The air conditioner further includes a drive component 5, which includes a first drive shaft 51 and a second drive shaft 52, the first drive shaft 51 being drivably connected to the first centrifugal fan blade 441, and the second drive shaft 52 being drivably connected to the second centrifugal fan blade 451. By providing a single drive component 5 to simultaneously drive the operation of the first air guide assembly 44 and the second air guide assembly 45, the number of components within the air conditioner is reduced, while ensuring the synchronization of the first air inlet branch 210 and the second air inlet branch 211, so that they work together to supply fresh air into the main air duct 10.

[0041] In this application, if Figure 5 As shown, the orthographic projection of the first air guide component 44 on the horizontal plane coincides with the orthographic projection of the second air guide component 45 on the horizontal plane, and the first air guide component 44 and the second air guide component 45 are both centrifugal fans; the air conditioner also includes: a cross-flow fan 6, which is arranged in the main air duct 10, and the cross-flow fan 6 extends along the length direction of the body 1, and the cross-flow fan 6 includes a cross-flow fan blade 60 and a first volute tongue 61; along the outflow direction of the air flow, the first volute tongue 61 includes a first connecting end 610 and a second connecting end 611 arranged oppositely, and the volute of the centrifugal fan includes a third connecting end 46 and a fourth connecting end 47 arranged oppositely; the horizontal line segment between the axis of the cross-flow fan blade 60 and the first connecting end 610 of the first volute tongue 61 is a, and the horizontal line segment between the axis of the cross-flow fan blade 60 and the fourth connecting end 47 of the volute of the centrifugal fan is b; the angle between the straight line where the line segment a is located and the straight line where the line segment b is located is β, and the range of angle β is 15° to 30°. When the angle β is within this range, the air intake of the auxiliary air duct 2 is maximized. The air inlet end 201 of the auxiliary air duct 2 is located on the side of the crossflow fan 6 close to the air inlet 11 of the main air duct 10. Thus, during operation of the crossflow fan 6, a negative pressure condition exists on the side of the crossflow fan 6 close to the air inlet 11 of the main air duct 10. At this time, the pressure difference can be used to draw fresh air from the auxiliary air duct 2 into the main air duct 10.

[0042] Along the outflow direction of the airflow, the second volute tongue 43 of the centrifugal fan includes a fifth connecting end 430 and a sixth connecting end 431 disposed opposite each other. The horizontal line segment between the axis of the centrifugal fan and the fourth connecting end 47 of the centrifugal fan volute is d, and the horizontal line segment between the axis of the centrifugal fan and the fifth connecting end 430 of the second volute tongue 43 is c. The angle α between the straight line containing line segment d and the straight line containing line segment c is α. The angle α ranges from 30° to 60°. Within this range, the airflow outflow distance within the volute is optimized, avoiding conflict with the airflow within the main air duct 10 due to different flow directions.

[0043] Due to the limited installation range in the body 1, the diameter of the centrifugal fan blades 42 is The diameter of the cross flow blade 60 is The horizontal distance between the axis of the centrifugal fan blade 42 and the axis of the crossflow fan blade 60 is L; The range is 94mm~103mm; The range of is 78mm~82mm; the range of L is 94mm~221mm.

[0044] Along the outflow direction of the airflow, the volute of the crossflow fan 6 includes a seventh connecting end 62 and an eighth connecting end 63 disposed opposite each other. The horizontal line segment e is between the axis of the crossflow blade 60 and the seventh connecting end 62 of the volute of the crossflow fan 6. The angle between the line containing line segment e and the line containing line segment a ranges from 178° to 185°. This angle represents the indoor airflow intake angle, and within this angle range, the indoor air intake volume is optimized.

[0045] It should be noted here that the volute of the centrifugal fan and the second volute tongue are connected through a first connecting shell, the third connecting end of the volute of the centrifugal fan is an end connected to the first connecting shell, and the fourth connecting end 47 is an end connected to the evaporator bracket 30; the fifth connecting end 430 of the second volute tongue 43 of the centrifugal fan is an end connected to the first connecting shell, and the sixth connecting end 431 of the second volute tongue 43 is an end connected to the evaporator bracket 30; the volute of the cross-flow fan and the first volute tongue are connected through a second connecting shell, the first connecting end 610 of the first volute tongue of the cross-flow fan is an end connected to the second connecting shell, the second connecting end 611 of the first volute tongue is an end connected to the air-conditioning outlet panel 200, the seventh connecting end 62 of the volute of the cross-flow fan is an end connected to the second connecting shell, and the eighth connecting end of the volute of the cross-flow fan is an end connected to the air-conditioning outlet panel 200.

[0046] In this application, if Figure 2 and Figure 3 As shown, the air conditioner further includes an evaporator component 3 disposed within the main air duct 10, and an air outlet end of the auxiliary air duct 2 is located on the side of the evaporator component 3 close to the air inlet 11 of the main air duct 10. This allows the fresh air in the auxiliary air duct 2 to flow into the room after passing through the evaporator component 3, preventing the fresh air from being too cold and affecting the user's experience.

[0047] Specifically, the evaporator component 3 also includes: an evaporator bracket 30, which is arranged in the main air duct 10 and is used to install the evaporator 31; an opening 301 is provided on the evaporator bracket 30, and the opening 301 is opposite to the evaporator 31. The air outlet end of the auxiliary air duct 2 is connected to the opening 301, and the air flow in the auxiliary air duct 2 flows through the evaporator 31 and then flows into the main air duct 10. By providing the opening 301 on the evaporator bracket 30, the air flow in the auxiliary air duct 2 is blown into the main air duct 10 through the opening 301. Among them, the air guide assembly 4 is installed on the evaporator bracket 30, and a limiting slide is provided on the evaporator bracket 30. The air outlet end of the air guide assembly 4 is provided with a guide rib. The air guide assembly 4 slides in the limiting slide through the guide rib to be fixed on the evaporator bracket 30 or removed from the evaporator bracket 30. This matching method facilitates the disassembly and maintenance of the air guide assembly 4.

[0048] Preferably, there are multiple openings 301, each corresponding to one of the multiple air guide assemblies 4. A shielding plate is provided on the evaporator support 30. The shielding plate is movably positioned on the evaporator support 30 to block or avoid the openings 301. The shielding plate is slidably arranged along the extension direction of the evaporator support 30 to facilitate operator control of the shielding plate's movement. In the event of a malfunction in the corresponding air inlet branch pipe 310, the corresponding opening 301 is shielded by the shielding plate to prevent debris within the machine body 1 from falling through the opening 301 into the main air duct 10.

[0049] In actual application, the body 1 further includes an air inlet panel 100 and an air outlet panel 200 , the air inlet 11 is provided on the air inlet panel 100 , and the air outlet 12 is provided on the air outlet panel 200 .

[0050] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0051] The air conditioner provided by the present invention includes a body 1 and an auxiliary air duct 2. The body 1 is provided with a main air duct 10, and the main air duct 10 has an air inlet 11 for introducing air flow and an air outlet 12 for discharging air flow. The air inlet end 201 of the auxiliary air duct 2 is used to communicate with the outdoor air flow, and the air outlet end 202 of the auxiliary air duct 2 is connected to the main air duct 10. The auxiliary air duct 2 includes a plurality of air inlet branches 21, each of which is provided with an air outlet. By providing a plurality of air inlet branches 21, and by connecting the plurality of air inlet branches 21 to the main air duct 10, during the operation of the air conditioner, fresh air is supplied to the main air duct 10 by the plurality of air inlet branches 21, thereby increasing the amount of fresh air in the room. At the same time, after the fresh air mixes with the original air flow in the main air duct 10, the pressure is increased, thereby increasing the air supply distance of the air conditioner, thereby improving the user comfort of the air conditioner.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An air conditioner, characterized in that: include: A machine body (1), wherein a main air duct (10) is provided in the machine body (1), and the main air duct (10) has an air inlet (11) for introducing air flow and an air outlet (12) for discharging air flow; An auxiliary air duct (2), wherein the air inlet end (201) of the auxiliary air duct (2) is used to communicate with the outdoor air flow, and the air outlet end (202) of the auxiliary air duct (2) is communicated with the main air duct (10); The auxiliary air duct (2) comprises a plurality of air inlet branches (21), and each of the air inlet branches (21) is provided with the air outlet end (202); The air conditioner further comprises: a plurality of air guide assemblies (4), each of the air guide assemblies (4) being arranged in the body (1), each of the air guide assemblies (4) having a guide air duct (40), the plurality of air guide assemblies (4) being arranged in a one-to-one correspondence with the plurality of air inlet branches (21), and the two ends of each guide air duct (40) being respectively connected to the corresponding air inlet branch (21) and the main air duct (10); The plurality of air inlet branches (21) include a first air inlet branch (210) and a second air inlet branch (211); the plurality of air guide assemblies (4) include a first air guide assembly (44) and a second air guide assembly (45) spaced apart along the extension direction of the machine body (1); The first air guide assembly (44) has a first air guide duct (440), and two ends of the first air guide duct (440) are respectively connected to the first air inlet branch (210) and the main air duct (10); The second air guide assembly (45) has a second air guide duct (450), and two ends of the second air guide duct (450) are respectively connected to the second air inlet branch (211) and the main air duct (10); The orthographic projection of the first air guide component (44) on the horizontal plane coincides with the orthographic projection of the second air guide component (45) on the horizontal plane, and both the first air guide component (44) and the second air guide component (45) are centrifugal fans; the air conditioner further comprises: A cross-flow fan (6) is arranged in the main air duct (10), the cross-flow fan (6) extends along the length direction of the machine body (1), and the cross-flow fan (6) includes a cross-flow fan blade (60) and a first volute tongue (61); Along the outflow direction of the airflow, the first volute tongue (61) includes a first connecting end (610) and a second connecting end (611) that are arranged opposite to each other, and the volute of the centrifugal fan includes a third connecting end (46) and a fourth connecting end (47) that are arranged opposite to each other; The horizontal line segment between the axis of the crossflow blade (60) and the first connection end (610) of the first volute tongue (61) is a, and the horizontal line segment between the axis of the crossflow blade (60) and the fourth connection end (47) of the volute of the centrifugal fan is b; The angle β between the straight line where the line segment a is located and the straight line where the line segment b is located is 15° to 30°.

2. The air conditioner according to claim 1, characterized in that The auxiliary air duct (2) further comprises: The air inlet main path (20) is provided with an air inlet end (201) of the auxiliary air duct (2) on the air inlet main path (20), and each of the air inlet branch paths (21) is connected to an end of the air inlet main path (20) away from the air inlet end (201).

3. The air conditioner according to claim 2, characterized in that The air conditioner further comprises: An air inlet main pipe (300), wherein the air inlet main path (20) is a lumen of the air inlet main pipe (300); A plurality of air inlet branch pipes (310), each of the air inlet branch pipes (310) is connected to the air inlet main pipe (300), the plurality of air inlet branch pipes (310) are arranged in a one-to-one correspondence with the plurality of air inlet branches (21), and each of the air inlet branches (21) is a tube cavity of the corresponding air inlet branch pipe (310).

4. The air conditioner according to claim 1, wherein: Each of the air guide components (4) further comprises: A flow guide body (41), the flow guide duct (40) being arranged in the flow guide body (41), the flow guide body (41) being provided with a communication port (410), and the corresponding air inlet branch (21) being connected to the flow guide duct (40) through the communication port (410); A centrifugal fan blade (42) is arranged in the guide air duct (40), and the centrifugal fan blade (42) is rotatably arranged around a predetermined axis to guide the airflow in the guide air duct (40) to the main air duct (10).

5. The air conditioner according to claim 1, characterized in that The first air guide assembly (44) comprises a first centrifugal fan blade (441), and the first centrifugal fan blade (441) is arranged in the first air guide duct (440); The second air guide assembly (45) comprises a second centrifugal fan blade (451), and the second centrifugal fan blade (451) is arranged in the second air guide duct (450); The air conditioner further comprises: A driving component (5), the driving component (5) comprising a first driving shaft (51) and a second driving shaft (52), the first driving shaft (51) being drivingly connected to the first centrifugal fan blade (441), and the second driving shaft (52) being drivingly connected to the second centrifugal fan blade (451).

6. The air conditioner according to claim 1, characterized in that Along the outflow direction of the airflow, the second volute tongue (43) of the centrifugal fan includes a fifth connecting end (430) and a sixth connecting end (431) that are arranged opposite to each other; The horizontal line segment between the axis of the centrifugal fan and the fourth connection end (47) of the volute of the centrifugal fan is d, the horizontal line segment between the axis of the centrifugal fan and the fifth connection end (430) of the second volute tongue (43) is c, and the angle between the straight line where the line segment d is located and the straight line where the line segment c is located is α; The angle α ranges from 30° to 60°.

7. The air conditioner according to claim 6, characterized in that The diameter of the centrifugal fan blade (42) is ∅1, the diameter of the crossflow fan blade (60) is ∅2, and the horizontal distance between the axis center line of the centrifugal fan blade (42) and the axis center line of the crossflow fan blade (60) is L; Among them, the range of ∅2 is 94mm~103mm; the range of ∅1 is 78mm~82mm; the range of L is 94mm~221mm.

8. The air conditioner according to claim 1, wherein: Along the outflow direction of the airflow, the volute of the cross-flow fan (6) includes a seventh connecting end (62) and an eighth connecting end (63) arranged opposite to each other. The horizontal line segment between the axis of the crossflow blade (60) and the seventh connection end (62) of the volute of the crossflow fan (6) is e, and the angle between the straight line where the line segment e is located and the straight line where the line segment a is located ranges from 178° to 185°.

9. The air conditioner according to claim 1, wherein: The air conditioner further comprises: The evaporator component (3) is arranged in the main air duct (10), and the air outlet end of the auxiliary air duct (2) is located on a side of the evaporator component (3) close to the air inlet (11) of the main air duct (10).

10. The air conditioner according to claim 9, characterized in that The evaporator component (3) further comprises: an evaporator bracket (30), disposed in the main air duct (10) and used for mounting the evaporator (31); An opening (301) is provided on the evaporator bracket (30), the opening (301) is opposite to the evaporator (31), the air outlet end of the auxiliary air duct (2) is connected to the opening (301), and the air flow in the auxiliary air duct (2) flows through the evaporator (31) and then flows into the main air duct (10).

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