Air conditioner

Abstract

The utility model discloses an air conditioner, which relates to the technical field of air conditioners, and comprises a shell, a first fan and a second fan, the shell is provided with a main air duct, an auxiliary air duct mutually independent from the main air duct, a main air outlet communicated with the main air duct, and an auxiliary air outlet communicated with the auxiliary air duct, the main air duct is matched with an indoor side heat exchanger of the air conditioner; the first fan is arranged in the main air duct; the second fan is arranged corresponding to the auxiliary air duct; the auxiliary air outlet is arranged close to the main air outlet, and an included angle is formed between the air outlet direction of the auxiliary air outlet and the air outlet direction of the main air outlet. According to the technical scheme provided by the utility model, the resistance of airflow can be reduced while wind-feeling-free air supply is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an air conditioner. Background Art

[0002] In the field of household refrigeration air conditioners, existing air conditioners often experience excessive airflow and very low air temperature, which can cause colds or even facial paralysis when blown directly onto people. Air conditioners with a wind-free feel on the market utilize soft air holes on the inner air guide plate. To achieve a wind-free feel, the inner air guide plate is closed, softening the air through the soft air holes, but this significantly increases the resistance to airflow. Utility Model Content

[0003] The main purpose of the utility model is to provide an air conditioner, which aims to achieve windless air supply and reduce the exhaust resistance of the air flow.

[0004] To achieve the above-mentioned purpose, the air conditioner proposed by the present invention comprises:

[0005] The housing is provided with a main air duct, a secondary air duct independent of the main air duct, a main air outlet communicating with the main air duct, and a secondary air outlet communicating with the secondary air duct, wherein the main air duct cooperates with the indoor heat exchanger of the air conditioner;

[0006] A first fan is provided in the main air duct; and

[0007] A second fan is provided corresponding to the auxiliary air duct;

[0008] The auxiliary air outlet is arranged close to the main air outlet, and the air outlet direction of the auxiliary air outlet is arranged at an angle to the air outlet direction of the main air outlet.

[0009] In one embodiment, the auxiliary air outlet is arranged at the lower side of the main air outlet.

[0010] In one embodiment, the angle between the outlet direction of the auxiliary air outlet and the horizontal plane is α, the angle between the line connecting the center of the auxiliary air duct and the upper edge of the main air outlet and the horizontal plane is β, and α<β.

[0011] In one embodiment, the main air outlet is arranged in a long strip shape, and the auxiliary air outlet is arranged in a long strip shape corresponding to the main air outlet.

[0012] In one embodiment, the width of the auxiliary air outlet is L, and the range of L is: 1mm≤L≤10mm.

[0013] In one embodiment, the shell is further provided with a first secondary air inlet connected to the secondary air duct, and the first secondary air inlet is used to connect to the interior of the room.

[0014] In one embodiment, the housing is further provided with a second secondary air inlet connected to the secondary air duct, and the second secondary air inlet is used to connect to the outdoors.

[0015] In one embodiment, the second fan is configured as a double-suction centrifugal fan, and the air conditioner further includes a first valve assembly and a second valve assembly, the first air suction port of the double-suction centrifugal fan is connected to the first auxiliary air inlet, the first valve assembly is used to close or open the first auxiliary air inlet, the second air suction port of the double-suction centrifugal fan is connected to the second auxiliary air inlet, and the second valve assembly is used to close or open the second auxiliary air inlet.

[0016] In one embodiment, the first valve assembly includes a first driving member and a sliding door, and the driving member drives the sliding door to slide to close the first auxiliary air inlet.

[0017] In one embodiment, the first valve assembly further comprises a meshing rack and gear, the first driving member is configured as a rotary motor, the gear is provided on an output shaft of the rotary motor, and the rack is provided on an edge of the sliding door.

[0018] In one embodiment, the second valve assembly includes a rotary door and a second driving member, the rotary door is rotatably connected to the wall of the first auxiliary air inlet, and the second driving member is drivingly connected to the rotary door to drive the rotary door to open or close the first auxiliary air inlet.

[0019] In one embodiment, the air conditioner includes a wall-mounted indoor unit and an outdoor unit connected to the wall-mounted indoor unit, and the wall-mounted indoor unit includes the housing, the first fan, and the second fan.

[0020] The technical solution of the present invention is to provide a secondary air duct on the shell, and to arrange the secondary air outlet connected to the secondary air duct close to the main air outlet for the exhaust of the air after heat exchange. In addition, the air outlet direction of the secondary air outlet is arranged at an angle to the air outlet direction of the main air outlet. In this way, the airflow discharged from the secondary air outlet can be used to exert a thrust on the airflow discharged from the main air outlet, thereby forcibly reversing the airflow direction of the airflow discharged from the main air outlet, so that the airflow flows toward the outer wall of the shell, and then the airflow continues to flow along the outer wall of the shell, thereby achieving a windless effect. Since the airflow of this solution flows along the side wall of the shell, it can achieve full-time and full-area windless air supply. Secondly, compared with the solutions in the prior art for achieving a windless effect, this solution has no blocking structure at the main air outlet (such as the surface of an inner air guide plate with soft wind holes) for the airflow after heat exchange in this solution. It can be understood that the airflow blowing onto the surface of the inner air guide plate will produce a reverse resistance. This solution uses the auxiliary air outlet to apply a lateral thrust to the airflow at the main air outlet. Therefore, this solution can greatly reduce the wind resistance in the opposite direction of the air outlet of the main air outlet, thereby reducing the discharge resistance of the airflow, and further reducing the impact on the heat exchange efficiency of the indoor heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0022] Figure 1 A structural diagram of an embodiment of an air conditioner provided by the utility model;

[0023] Figure 2 This is a schematic diagram of the first cross-sectional structure of the air conditioner provided by the utility model;

[0024] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0025] Figure 4 A schematic diagram of the structure of part of the air conditioner provided by the utility model;

[0026] Figure 5 This is a structural diagram of the air conditioner provided by the utility model in a closed state of the second auxiliary air inlet;

[0027] Figure 6 This is a structural diagram of the air conditioner provided by the present invention in a state where the second auxiliary air inlet is open;

[0028] Figure 7A second cross-sectional structural diagram of the air conditioner provided by the present utility model;

[0029] Figure 8 This is a structural diagram of the air conditioner provided by the utility model in a closed state of the first auxiliary air inlet;

[0030] Figure 9 This is a structural schematic diagram of the air conditioner provided by the utility model in an open state of the first auxiliary air inlet.

[0031] Description of Figure Numbers:

[0032] 100. Housing; 110. Main air duct; 120. Auxiliary air duct; 130. Main air outlet; 140. Auxiliary air outlet; 150. First auxiliary air inlet; 160. Second auxiliary air inlet; 170. Slide rail; 200. First fan; 300. Second fan; 400. First valve assembly; 410. First driving member; 420. Sliding door; 430. Rack; 440. Gear; 500. Second valve assembly.

[0033] 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

[0034] 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 embodiments described 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 making any creative work are within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] 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 for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually 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.

[0037] In the field of household refrigeration air conditioners, existing air conditioners often experience excessive airflow and very low air temperature, which can cause colds or even facial paralysis when blown directly onto people. Air conditioners with a wind-free feel on the market utilize soft air holes on the inner air guide plate. To achieve a wind-free feel, the inner air guide plate is closed, softening the air through the soft air holes, but this significantly increases the resistance to airflow.

[0038] In order to solve the above problems, the present invention provides an air conditioner.

[0039] See also Figure 1 and Figure 2 In one embodiment of the present invention, the air conditioner includes a housing 100, a first fan 200 and a second fan 300. The housing 100 is provided with a main air duct 110, an auxiliary air duct 120 independent of the main air duct 110, a main air outlet 130 connected to the main air duct 110, and an auxiliary air outlet 140 connected to the auxiliary air duct 120. The main air duct 110 cooperates with the indoor heat exchanger of the air conditioner; the first fan 200 is provided in the main air duct 110; the second fan 300 is provided corresponding to the auxiliary air duct 120; the auxiliary air outlet 140 is provided close to the main air outlet 130, and the air outlet direction of the auxiliary air outlet 140 is provided at an angle to the air outlet direction of the main air outlet 130.

[0040] The technical solution of the present invention is to provide a secondary air duct 120 on the housing 100, and to arrange a secondary air outlet 140 connected to the secondary air duct 120 close to the main air outlet 130 for discharging the air after heat exchange. In addition, the air outlet direction of the secondary air outlet 140 is arranged at an angle to the air outlet direction of the main air outlet 130. In this way, the airflow discharged from the secondary air outlet 140 can be used to exert a thrust on the airflow discharged from the main air outlet 130, thereby forcibly reversing the airflow direction of the airflow discharged from the main air outlet 130, so that the airflow flows toward the wall surface of the housing 100, and then the airflow continues to flow along the wall surface of the housing 100, thereby achieving a windless effect. Moreover, because the airflow flows along the side wall of the housing 100, it can achieve a windless air supply at all times and in all areas.

[0041] Compared with the solutions in the prior art for achieving a windless effect (such as providing an inner wind guide plate with soft wind holes to disperse the wind), this solution has no blocking structure at the main air outlet 130 (such as the surface of the inner wind guide plate with soft wind holes) for the airflow after heat exchange in this solution. It can be understood that the airflow blowing onto the surface of the inner wind guide plate will produce a reverse resistance. This solution utilizes the auxiliary air outlet 140 to apply a lateral thrust to the airflow of the main air outlet 130. Therefore, this solution can greatly reduce the wind resistance in the opposite direction of the air outlet of the main air outlet 130, thereby reducing the discharge resistance of the airflow, and further reducing the impact on the heat exchange efficiency of the indoor heat exchanger.

[0042] The wind-free structure of this solution refers to the auxiliary air duct 120, the auxiliary air outlet 140 and the air flow in the auxiliary air duct 120. The air outlet direction of the auxiliary air outlet 140 and the air outlet direction of the main air outlet 130 are toward the front side of the housing 100.

[0043] It should be noted that when air flows toward the outer wall of housing 100, it will avoid continuing to flow along the outside of housing 100. This is due to the Coanda effect (also known as the wall adhesion effect or Coanda effect), which is the tendency of fluid (water flow or air flow) to deviate from its original flow direction and instead flow along the protruding surface of an object. According to Bernoulli's principle, a decrease in flow velocity will lead to an increase in fluid pressure, which creates a suction force toward the surface, causing the fluid to be attracted to the surface and continue to flow. This solution uses the wall adhesion effect to deliver air, which can also accelerate indoor heat exchange efficiency and improve air supply comfort.

[0044] Furthermore, the arrangement of the second fan 300 corresponding to the auxiliary air duct 120 can be understood as the second fan 300 being used to transport the airflow to the auxiliary air duct 120 and discharge it from the auxiliary air outlet 140. Specifically, the second fan 300 can be arranged outside the auxiliary air duct 120 or inside the auxiliary air duct 120.

[0045] Optionally, the auxiliary air outlet 140 is disposed below the main air outlet 130. It is understood that in this case, the airflow discharged from the auxiliary air outlet 140 will blow upward the airflow discharged from the main air outlet 130, causing the airflow discharged from the main air outlet 130 to flow upward, thereby flowing upward along the side wall of the housing 100, thereby further enhancing the windless air supply effect. Of course, this solution is not limited to this. In other embodiments, the auxiliary air outlet 140 can also be disposed above the main air outlet 130.

[0046] Reference Figure 3 In one embodiment, the angle between the air outlet direction of the auxiliary air outlet 140 and the horizontal plane is α, and the angle between the line connecting the center of the auxiliary air duct 120 and the upper edge of the main air outlet 130 and the horizontal plane is β, α<β, which is conducive to further reducing the wind resistance of the windless structure.

[0047] In this embodiment, the secondary air outlet 140 is located inside the main air outlet 130, that is, on the side of the main air outlet 130 closer to the indoor heat exchanger. This can improve the airflow's wall adhesion effect. Of course, this solution is not limited to this. In other embodiments, the secondary air duct 120 is located outside the main air outlet 130, and the secondary air outlet 140 discharges air at an angle toward the main air outlet 130.

[0048] Reference Figure 4 Furthermore, the main air outlet 130 is configured as an elongated opening, and the auxiliary air outlet 140 is configured to correspond to the main air outlet 130. It can be understood that the main air outlet 130 and the auxiliary air outlet 140 extend in the same direction and have matching lengths. The airflow from the auxiliary air outlet 140 can reverse the airflow discharged from each part of the main air outlet 130, which helps further improve the windless air supply effect. Of course, this solution is not limited to this. In other embodiments, the main air outlet 130 is configured as an elongated opening, and the auxiliary air outlet 140 is provided with multiple auxiliary air outlets, which are arranged along the extension direction of the main air outlet 130 and are configured to correspond to the main air outlet 130.

[0049] Among them, the width of the auxiliary air outlet 140 is L, and the range of L is: 1mm≤L≤10mm. In this way, the centrifugal force of the second fan 300 can be used to appropriately accelerate the outlet wind speed of the air flow discharged from the auxiliary air outlet 140, thereby further improving the reversing effect of the air flow discharged from the auxiliary air outlet 140 on the air flow discharged from the main air outlet 130.

[0050] Reference Figures 5 to 9Furthermore, the housing 100 is further provided with a first auxiliary air inlet 150 that communicates with the auxiliary air duct 120. The first auxiliary air inlet 150 is used to communicate with the indoor air. It can be understood that the first auxiliary air inlet 150 of the auxiliary air duct 120 is provided on the housing 100 and communicates with the indoor air. In this case, the airflow discharged from the auxiliary air outlet 140 is the indoor airflow, which can ensure that the cooling or heating efficiency of the air conditioner is not reduced. Of course, this solution is not limited to this. In other embodiments, the first auxiliary air inlet 150 can also be connected to the outdoors, and the outdoor airflow is used to forcibly reverse the airflow of the main air outlet 130. In this case, fresh air from the outdoors can be introduced, and a windless air supply effect can be achieved.

[0051] Furthermore, the shell 100 is also provided with a second auxiliary air inlet 160 connected to the auxiliary air duct 120. The second auxiliary air inlet 160 is used to connect to the outdoors. It can be understood that the second auxiliary air inlet 160 introduces fresh air from the outdoors, so that the indoor air can be replaced, so that the indoor air can remain fresh for a long time, thereby avoiding the problem of staying indoors for a long time causing stuffy air, affecting user comfort and even causing harm to user health; moreover, the fresh air from the second auxiliary air inlet 160 is discharged into the auxiliary air duct 120 through the second fan 300, and finally discharged from the auxiliary air outlet 140. Since the air outlet direction of the auxiliary air outlet 140 is inclined toward the air outlet direction of the main air outlet 130, the fresh air from the auxiliary air outlet 140 can force the airflow of the main air outlet 130 to be reversed, thereby producing a wall attachment effect to achieve a windless air supply effect.

[0052] Optionally, the second fan 300 is configured as a double-suction centrifugal fan, and the air conditioner further includes a first valve assembly 400 and a second valve assembly 500. The first air intake of the double-suction centrifugal fan is connected to the first auxiliary air inlet 150, and the first valve assembly 400 is used to close or open the first auxiliary air inlet 150. The second air intake of the double-suction centrifugal fan is connected to the second auxiliary air inlet 160, and the second valve assembly 500 is used to close or open the second auxiliary air inlet 160. It can be understood that configuring the second fan 300 as a double-suction centrifugal fan can achieve the first auxiliary air inlet 150 and the second auxiliary air inlet 160 sharing a single fan, thereby reducing the weight and cost of the air conditioner. Of course, this solution is not limited to this. In other embodiments, the second fan 300 can also include two blowers, one blower's air inlet is connected to the first auxiliary air inlet 150, and the other blower's air outlet is connected to the second auxiliary air inlet 160, and the air outlets of the two blowers are respectively connected to the auxiliary air duct 120.

[0053] It should be noted that, when there is no wind supply, the second valve assembly 500 closes the second auxiliary air inlet 160, and the first valve assembly 400 opens the first auxiliary air inlet 150. At this time, the airflow discharged from the auxiliary air outlet 140 is mixed with the airflow discharged from the main air outlet 130 and the direction of the airflow discharged from the main air outlet 130 is changed, so that the airflow is sent upward along the wall, achieving the effect of no wind supply.

[0054] When the fresh air function is turned on, the second valve assembly 500 opens the second auxiliary air inlet 160, and the first valve assembly 400 closes the first auxiliary air inlet 150. At this time, the airflow discharged from the auxiliary air outlet 140 is mixed with the airflow discharged from the main air outlet 130 and the direction of the airflow discharged from the main air outlet 130 is changed, so that the airflow is sent upward along the wall, achieving a windless air supply effect while improving the freshness of the indoor air.

[0055] Furthermore, the first valve assembly 400 includes a first driving member 410 and a sliding door 420. The driving member drives the sliding door 420 to slide, thereby closing the first auxiliary air inlet 150. Such a first valve assembly 400 has a simple structure and is easy to purchase, making it easy to promote and apply. Of course, this solution is not limited to this. In other embodiments, the first valve assembly 400 may also include a valve and a motor. The valve is rotatably installed at the first auxiliary air inlet 150, and the motor drives the valve to rotate to open or close the first auxiliary air inlet 150.

[0056] The housing 100 is provided with two slide rails 170 , and the sliding door 420 is provided with a sliding protrusion corresponding to each slide rail 170 , and the sliding protrusion is slidably disposed in the slide rail 170 .

[0057] Furthermore, the first valve assembly 400 further includes a meshing rack 430 and a gear 440. The first drive member 410 is configured as a rotary motor, the gear 440 is disposed on the output shaft of the rotary motor, and the rack 430 is disposed on the edge of the sliding door 420. It is understood that by configuring the first drive member 410 as a rotary motor and configuring the linkage structure of the first valve assembly 400 as the gear 440 and the rack 430, the first drive member 410 and the linkage structure can be disposed lateral to the sliding door 420, thereby reducing the space occupied by the first valve assembly 400 in the direction of operation of the sliding door 420 and shortening the length of the air conditioner in the direction of operation of the sliding door 420. Of course, the present invention is not limited to this. In other embodiments, the first drive member 410 can also be configured as a cylinder or a linear motor, which can directly drive the sliding door 420.

[0058] Optionally, the second valve assembly 500 includes a rotating door and a second driving member. The rotating door is rotatably connected to the wall of the first auxiliary air inlet 150. The second driving member is drivingly connected to the rotating door to drive the rotating door to open or close the first auxiliary air inlet 150. Such a second valve assembly 500 has a simple structure, is easily available, and is easy to promote and apply. Of course, this solution is not limited to this. In other embodiments, the second valve assembly 500 may also include a valve and a linear motor. The valve is slidably disposed on the housing 100, and the linear motor drives the valve to slide to open or close the second auxiliary air inlet 160.

[0059] Optionally, the air conditioner includes a wall-mounted indoor unit and an outdoor unit connected to the wall-mounted indoor unit. The wall-mounted indoor unit includes a housing 100, a first fan 200, and a second fan 300. The housing 100 is provided with a main air duct 110, a secondary air duct 120 independent of the main air duct 110, a main air outlet 130 communicating with the main air duct 110, and a secondary air outlet 140 communicating with the secondary air duct 120. The main air duct 110 cooperates with an indoor heat exchanger of the air conditioner. The first fan 200 is provided in the main air duct 110; the second fan 300 is provided in the secondary air duct 120; and the secondary air outlet 140 is provided near the main air outlet 130, with the air outlet direction of the secondary air outlet 140 being inclined toward the air outlet direction of the main air outlet 130. Of course, this solution is not limited to this. In other embodiments, the air conditioner may also be an integrated air conditioner.

[0060] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air conditioner, characterized in that: include: The housing is provided with a main air duct, a secondary air duct independent of the main air duct, a main air outlet communicating with the main air duct, and a secondary air outlet communicating with the secondary air duct, wherein the main air duct cooperates with the indoor heat exchanger of the air conditioner; A first fan is provided in the main air duct; as well as A second fan is provided corresponding to the auxiliary air duct; The auxiliary air outlet is arranged close to the main air outlet, and the air outlet direction of the auxiliary air outlet is arranged at an angle to the air outlet direction of the main air outlet.

2. The air conditioner according to claim 1, wherein The auxiliary air outlet is arranged at the lower side of the main air outlet.

3. The air conditioner according to claim 2, wherein: The angle between the air outlet direction of the auxiliary air outlet and the horizontal plane is α, the angle between the line connecting the center of the auxiliary air duct and the upper edge of the main air outlet and the horizontal plane is β, and α<β.

4. The air conditioner according to claim 1, wherein The main air outlet is arranged in a long strip shape, and the auxiliary air outlet is arranged in a long strip shape corresponding to the main air outlet.

5. The air conditioner according to claim 4, wherein: The width of the auxiliary air outlet is L, and the range of L is: 1mm≤L≤10mm.

6. The air conditioner according to any one of claims 1 to 5, characterized in that: The shell is further provided with a first auxiliary air inlet communicated with the auxiliary air duct, and the first auxiliary air inlet is used to communicate with the interior of the room.

7. The air conditioner according to claim 6, wherein: The housing is further provided with a second auxiliary air inlet communicated with the auxiliary air duct, and the second auxiliary air inlet is used to communicate with the outdoors.

8. The air conditioner according to claim 7, wherein: The second fan is configured as a double-suction centrifugal fan, and the air conditioner also includes a first valve assembly and a second valve assembly. The first air suction port of the double-suction centrifugal fan is connected to the first auxiliary air inlet, and the first valve assembly is used to close or open the first auxiliary air inlet. The second air suction port of the double-suction centrifugal fan is connected to the second auxiliary air inlet, and the second valve assembly is used to close or open the second auxiliary air inlet.

9. The air conditioner according to claim 8, wherein The first valve assembly includes a first driving member and a sliding door, and the driving member drives the sliding door to slide to close the first auxiliary air inlet.

10. The air conditioner according to claim 9, wherein The first valve assembly further includes a meshing rack and a gear. The first driving member is configured as a rotary motor. The gear is disposed on an output shaft of the rotary motor, and the rack is disposed on an edge of the sliding door.

11. The air conditioner according to claim 8, wherein The second valve assembly includes a rotary door and a second driving member. The rotary door is rotatably connected to the wall of the first auxiliary air inlet. The second driving member is drivingly connected to the rotary door to drive the rotary door to open or close the first auxiliary air inlet.

12. The air conditioner according to any one of claims 1 to 11, characterized in that: The air conditioner includes a wall-mounted indoor unit and an outdoor unit connected to the wall-mounted indoor unit. The wall-mounted indoor unit includes the housing, the first fan, and the second fan.

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