Indoor unit of floor air conditioner

Abstract

The invention provides an indoor unit of a floor air conditioner. The indoor unit of the floor air conditioner comprises a shell, a main air duct and an auxiliary air duct are defined in the shell; the heat exchanger is arranged in the main air duct and is configured to perform heat exchange on air entering the main air duct; the main fan is arranged in the main air duct and is configured to send out the air subjected to heat exchange; and the auxiliary fan is arranged in the auxiliary air duct and is configured to send out the air which enters the auxiliary air duct and is not subjected to heat exchange. According to the indoor unit of the floor air conditioner, the main air duct and the auxiliary air duct are arranged and matched with the main fan and the auxiliary fan in the main air duct and the auxiliary air duct, so that air after heat exchange and air without heat exchange can be mixed and then sent to the indoor environment, and the problem that the temperature difference between the air outlet temperature and the room temperature is too large when the indoor unit of the floor air conditioner is used for refrigerating or heating is effectively solved; and the comfort requirement of the user is fully met.

Description

Technical Field

[0001] The present invention relates to the field of household electrical appliances, and particularly to an indoor unit of a vertical air conditioner. Background Art

[0002] With the development of society and the continuous improvement of people's living standards, various air conditioning devices have become one of the indispensable electrical appliances in people's daily lives. Various air conditioning devices can help people reach an adaptable temperature when the environmental temperature is too high or too low. Currently, the air conditioning devices mainly include various types of air conditioners and fans.

[0003] Among them, air conditioners can be divided into vertical, wall-mounted, ceiling-mounted, etc. according to the different settings of the indoor unit. The indoor unit of a vertical air conditioner is mainly used in places with large areas such as living rooms, schools, hospitals, etc., and can quickly provide more cooling or heating capacity to these places, so that the environmental temperature can meet the comfort requirements of users as soon as possible. However, the temperature difference between the air outlet temperature and the room temperature of the existing indoor unit of a vertical air conditioner is often too large during refrigeration or heating, which is likely to bring discomfort to users.

[0004] In addition, the wind speed of the existing indoor unit of a vertical air conditioner generally decreases slowly from the high-wind area on the left to one end of the rear volute on the right. Especially in the rear volute area, the wind speed drops exponentially. The low wind speed directly leads to a decrease in the utilization efficiency of the heat exchanger. Due to the wind speed relationship, the heat exchanger on the right cannot exert its optimal performance, affecting the heat exchange effect of the indoor unit of the vertical air conditioner and unable to fully meet the user's usage requirements. Summary of the Invention

[0005] An object of the present invention is to solve the problem that the temperature difference between the air outlet temperature and the room temperature of the indoor unit of a vertical air conditioner is too large, and to meet the comfort requirements of users.

[0006] A further object of the present invention is to reduce or eliminate the air supply deviation of the indoor unit of a vertical air conditioner, effectively improve the overall energy efficiency, and enhance the user's usage experience.

[0007] A further object of the present invention is to achieve the balance between the air inflow volume at the air inlet and the heat exchange efficiency of the heat exchanger through the unique structure setting of the heat exchanger.

[0008] In particular, the present invention provides an indoor unit of a vertical air conditioner, including:

[0009] A housing, which defines a main air duct and an auxiliary air duct inside;

[0010] A heat exchanger, disposed in the main air duct, configured to exchange heat with the air entering the main air duct;

[0011] A main fan, disposed in the main air duct, configured to send out the heat-exchanged air; and

[0012] The auxiliary fan is disposed in the auxiliary air duct and configured to send out the unheated air entering the auxiliary air duct.

[0013] Optionally, the air outlets of the main fan and the auxiliary fan converge, so that the heated air and the unheated air are mixed and then sent to the indoor environment.

[0014] Optionally, the indoor unit of the vertical air conditioner further includes:

[0015] The flow guide plate is disposed at the air outlet of the auxiliary fan as a part of the main air duct, and

[0016] The flow guide plate divides the auxiliary air duct into two parts, so as to mix air on the front and rear sides of the flow guide plate respectively, improving the air mixing effect.

[0017] Optionally, the housing includes a front door panel, and a micropore penetrating up and down is provided on the right side of the front door panel, configured to allow the air in the indoor environment to enter the auxiliary air duct through the micropore.

[0018] Optionally, the housing further includes: a front scroll tongue and a rear scroll tongue, and

[0019] One end of the front scroll tongue and one end of the rear scroll tongue are both connected to the front door panel,

[0020] An air outlet is formed between the front scroll tongue and the rear scroll tongue.

[0021] Optionally, a vertical swing blade is provided at the air outlet, configured to be controlled to rotate to a preset angle to reduce or eliminate the leftward deviation of the air supply caused by the auxiliary air duct.

[0022] Optionally, the housing further includes: an air inlet grille, connected to the front door panel, and an air inlet is provided on the air inlet grille, configured to allow the air in the indoor environment to enter the main air duct through the air inlet.

[0023] Optionally, the air inlet grille includes a body part and support parts on the left and right sides of the body part, and

[0024] The front side of the auxiliary air duct is lapped with the front door panel, and the rear side of the auxiliary air duct is connected to the support part on the right side.

[0025] Optionally, both the main fan and the auxiliary fan are cross-flow fans or centrifugal fans, and

[0026] The air intake volume at the air inlet gradually decreases from left to right.

[0027] Optionally, the heat exchange units of the heat exchanger gradually decrease from left to right to match the gradually decreasing air intake volume at the air inlet from left to right.

[0028] The indoor unit of the vertical air conditioner of the present invention includes: a housing, which defines a main air duct and an auxiliary air duct inside; a heat exchanger, disposed in the main air duct, configured to exchange heat with the air entering the main air duct; a main fan, disposed in the main air duct, configured to send out the heat-exchanged air; and an auxiliary fan, disposed in the auxiliary air duct, configured to send out the unheated air entering the auxiliary air duct. By providing the main air duct and the auxiliary air duct and cooperating with the main fan and the auxiliary fan therein, the heat-exchanged air and the unheated air can be mixed and sent to the indoor environment, thereby effectively solving the problem of excessive temperature difference between the air outlet temperature and the room temperature of the indoor unit of the vertical air conditioner during refrigeration or heating, and fully meeting the comfort requirements of users.

[0029] Further, for the indoor unit of the vertical air conditioner of the present invention, the housing further includes: a front scroll tongue and a rear scroll tongue, and one end of the front scroll tongue and one end of the rear scroll tongue are both connected to the front door panel, and an air outlet is formed between the front scroll tongue and the rear scroll tongue; a vertical swing blade is disposed at the air outlet, configured to be controlled to rotate to a preset angle to reduce or eliminate the leftward deviation of the air supply caused by the auxiliary air duct, effectively improving the overall energy efficiency and enhancing the user experience.

[0030] Furthermore, for the indoor unit of the vertical air conditioner of the present invention, both the main fan and the auxiliary fan are cross-flow fans or centrifugal fans, and the air intake at the air inlet gradually decreases from left to right; the heat exchange units of the heat exchanger gradually decrease from left to right to match the gradually decreasing air intake at the air inlet. Through the unique structural setting of the heat exchanger, the balance between the air intake at the air inlet and the heat exchange efficiency of the heat exchanger is achieved.

[0031] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will more clearly understand the above and other objects, advantages and features of the present invention. Description of the Drawings

[0032] Hereinafter, some specific embodiments of the present invention will be described in detail with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 is a front view of the indoor unit of the vertical air conditioner according to an embodiment of the present invention;

[0034] Figure 2 is a side view of the indoor unit of the vertical air conditioner according to an embodiment of the present invention; and

[0035] Figure 3 is a cross-sectional view of the indoor unit of the vertical air conditioner according to an embodiment of the present invention. Detailed Description of the Embodiments

[0036] This embodiment provides an indoor unit of a vertical air conditioner. By setting up a makeup air structure, it can solve the problems of blocked air volume and slow wind speed at one end of the rear scroll tongue of the vertical air conditioner, effectively improve the overall energy efficiency, and enhance the user experience. Figure 1 It is a front view of the indoor unit 100 of a vertical air conditioner according to an embodiment of the present invention. Figure 2 It is a side view of the indoor unit 100 of a vertical air conditioner according to an embodiment of the present invention. Figure 3 It is a cross-sectional view of the indoor unit 100 of a vertical air conditioner according to an embodiment of the present invention. As Figures 1 to 3 shown, the indoor unit 100 of the vertical air conditioner in this embodiment generally may include: a housing 110, a heat exchanger 120, a main fan 130, and an auxiliary fan 132.

[0037] Among them, a main air duct 181 and an auxiliary air duct 182 are defined inside the housing 110. Specifically, a cavity 111 may be defined inside the housing 110, and the cavity 111 may be divided into the main air duct 181 and the auxiliary air duct 182. The heat exchanger 120 may be disposed in the main air duct 181 and configured to exchange heat with the air entering the main air duct 181. That is to say, the air exchanged heat by the heat exchanger 120 is cold air during refrigeration or hot air during heating.

[0038] The main fan 130 may be disposed in the main air duct 181 and configured to send out the heat-exchanged air. That is, the main fan 130 can send out cold air during refrigeration or hot air during heating. The auxiliary fan 132 may be disposed in the auxiliary air duct 182 and configured to send out the air that has not been heat-exchanged and enters the auxiliary air duct 182. That is, the auxiliary fan 132 can send out air at room temperature. In a preferred embodiment, the air outlets of the main fan 130 and the auxiliary fan 132 converge, so that the heat-exchanged air and the non-heat-exchanged air are mixed and then sent to the indoor environment.

[0039] Since the indoor unit 100 of the vertical air conditioner is cold air with a lower temperature after heat exchange during refrigeration and hot air with a higher temperature after heat exchange during heating, directly sending the cold air or hot air to the indoor environment and blowing it on the user may cause the user to feel uncomfortable because the temperature difference from the air in the indoor environment may be large. Therefore, in this embodiment, by setting up the main air duct 181, the auxiliary air duct 182, and the main fan 130 and the auxiliary fan 132 therein, mixing the heat-exchanged cold air or hot air with the non-heat-exchanged room-temperature air, and then sending it to the indoor environment, it can effectively solve the problem of too large a temperature difference between the outlet air temperature and the room temperature of the indoor unit 100 of the vertical air conditioner during refrigeration or heating, and fully meet the comfort requirements of users.

[0040] In a preferred embodiment, as Figure 3As shown, the indoor unit 100 of the vertical air conditioner may further include: a deflector 183. The deflector 183 may be provided at the air outlet of the auxiliary fan 132 as a part of the main air duct 181. And the deflector 183 can divide the auxiliary air duct 182 into two parts, so that air mixing can be carried out on both the front and back sides of the deflector 183, thereby improving the air mixing effect. That is to say, the cooled or heated air after heat exchange can be mixed with the unheated air on both the front and back sides of the deflector 183 respectively, improving the air mixing efficiency and effect.

[0041] As Figure 2 and Figure 3 shown, the housing 110 may include a front door panel 112, and a micropore 184 penetrating up and down is provided on the right side of the front door panel 112, configured to allow the air in the indoor environment to enter the auxiliary air duct 182 through the micropore 184. Since the auxiliary air duct 182 and the auxiliary fan 132 are arranged at a position biased to the right in the cavity 111, a micropore 184 can be provided on the right side of the front door panel 112, so that the room temperature air can enter the auxiliary air duct 182 from the micropore 184 and be sent out by the auxiliary fan 132 and then mixed with the air after heat exchange. The specific number and arrangement of the micropores 184 can be set according to the actual situation, but it is necessary to ensure that the room temperature air can smoothly enter the auxiliary air duct 182.

[0042] As Figure 3 shown, the housing 110 may further include: a front scroll tongue 114 and a rear scroll tongue 113. And one end of the front scroll tongue 114 and one end of the rear scroll tongue 113 are both connected to the front door panel 112, and an air outlet 117 is formed between the front scroll tongue 114 and the rear scroll tongue 113. A vertical swing blade 118 is provided at the air outlet 117, configured to be controlled to rotate to a preset angle to reduce or eliminate the leftward offset of the air supply caused by the auxiliary air duct 182. Since the auxiliary air duct 182 is located on the right side of the cavity and the auxiliary fan 132 in the auxiliary air duct 182 supplies air to the left, a certain degree of leftward offset of the air supply may occur. The leftward offset of the air supply can be effectively reduced or eliminated by the correction of the vertical swing blade.

[0043] In a specific embodiment, the main fan 130 may be provided in front of the heat exchanger 120. The types of fans generally used in the indoor unit of the air conditioner mainly include: centrifugal fans, cross-flow fans, and axial fans. Among them, the air in the centrifugal fan is affected by the centrifugal force, generating a vacuum degree in the center of the impeller. The inhaled air turns 90° at the impeller inlet and then enters the flow channel formed by the blades, and obtains kinetic energy and pressure energy under the action of the blades. The air flow discharged from the blade channel enters the volute, and after concentration and diversion, it is discharged from the outlet of the centrifugal fan.

[0044] The cross-flow fan can also be called a transverse-flow fan. The air flow radially enters the blade row from the open part of the impeller, passes through the inside of the impeller, and is discharged into the volute from the other blade row, forming the working air flow. The air flow in the axial-flow fan flows axially within the impeller. Each of the above three types of fans has its own advantages and disadvantages and can be set according to the actual situation. In this embodiment, the main fan 130 and the auxiliary fan 132 can both be cross-flow fans or centrifugal fans. Preferably, both the main fan 130 and the auxiliary fan 132 can be cross-flow fans.

[0045] The main fan 130 can also be correspondingly provided with a motor (not shown in the figure), configured to drive the main fan 130 to rotate. Similarly, the auxiliary fan 132 can also be correspondingly provided with a motor, configured to drive the auxiliary fan 132 to rotate. And the air supply speed of the indoor unit 100 of the vertical air conditioner can be adjusted by adjusting the rotation speeds of the motors driving the main fan 130 and the auxiliary fan 132.

[0046] In this embodiment, both the main fan 130 and the auxiliary fan 132 can be cross-flow fans. This is because the axial length of the cross-flow fan is not limited, and the length of the impeller can be arbitrarily selected according to different usage requirements. Moreover, the air flow passes through the impeller, and is affected by the force of the blades twice, so the air flow can reach a long distance and the air supply is relatively far. In addition, the cross-flow fan has no turbulent flow, the air outlet is uniform, and the noise is low, which can effectively improve the user experience.

[0047] In a preferred embodiment, the housing 110 can further include: an air inlet grille 115, connected to the front door panel 112, and an air inlet 116 is provided on the air inlet grille 115, configured to allow the air in the indoor environment to enter the cavity 111 through the air inlet 116. In fact, the housing 110 can include a front door panel 112 and a rear door panel 119, and the air inlet grille 115 can be provided on the rear door panel 119. A filter screen can be provided at the air inlet 116 of the air inlet grille 115, so as to preliminarily filter the air entering the cavity 111 through the air inlet 116 and improve the cleanliness of the interior of the indoor unit 100 of the vertical air conditioner and the final air outlet. The air outlet 117 formed between the front scroll tongue 114 and the rear scroll tongue 113 can also be reflected on the front door panel 112.

[0048] In addition, the housing 110 can further include panels such as a top plate and a bottom plate. The setting of the top plate and the bottom plate can make the overall integrity of the indoor unit 100 of the vertical air conditioner better and make the indoor unit 100 of the vertical air conditioner more stable when installed in the indoor environment. The front door panel 112 and the rear door panel 119 of the indoor unit 100 of this embodiment can be directly connected without additionally setting side panels. In some other embodiments, the housing 110 can further include side panels, and the side panels can include a left side panel and a right side panel, which are respectively connected to the front door panel 112 and the rear door panel 119.

[0049] Traditional indoor units of vertical air conditioners are only equipped with a single air supply fan, which is prone to the following problems: The cross-flow fan has an inherent problem of wind speed difference, which causes the wind speed of the indoor unit of the vertical air conditioner to gradually decrease from the high-wind area on the left to one end of the rear volute tongue on the right. Especially in the area of the rear volute tongue, the wind speed drops exponentially. The low wind speed directly leads to a decrease in the utilization efficiency of the heat exchanger. Due to the wind speed relationship, the heat exchanger on the right cannot exert its optimal performance, affecting the heat exchange effect of the indoor unit of the vertical air conditioner and unable to fully meet the user's usage requirements.

[0050] When both the main fan 130 and the auxiliary fan 132 in this embodiment are cross-flow fans, the air intake volume at the air inlet 117 also gradually decreases from left to right. Therefore, the heat exchange units of the heat exchanger 120 in this embodiment can be gradually reduced from left to right to match the gradually decreasing air intake volume at the air inlet 117. In this way, through the unique structure setting of the heat exchanger 120, the balance between the air intake volume at the air inlet 117 and the heat exchange efficiency of the heat exchanger 120 can be achieved.

[0051] As mentioned above, the heat exchanger 120 is configured to exchange heat with the air entering the main air duct 181. When the indoor unit 100 of the vertical air conditioner operates in the cooling mode, the air heated by the heat exchanger 120 is cold air. After being mixed with the unheated air and sent to the indoor environment through the air outlet 117, the temperature of the indoor environment can be reduced, making the user feel cool. When the indoor unit 100 of the vertical air conditioner operates in the heating mode, the air heated by the heat exchanger 120 is hot air. After being mixed with the unheated air and sent to the indoor environment through the air outlet 117, the temperature of the indoor environment can be increased, making the user feel warm.

[0052] In a specific embodiment, the indoor unit 100 of the vertical air conditioner can start the cooling mode or the heating mode after receiving the user's activation trigger signal. More specifically, it can receive the activation trigger signal sent by the user through the display device, voice device, remote control of the indoor unit 100 of the vertical air conditioner, or the mobile terminal bound to the indoor unit 100 of the vertical air conditioner. The mobile terminal can be a portable intelligent device, such as a smart phone, a tablet computer, etc.

[0053] The heat exchanger 120 can be disposed in the main air duct 181 near the air inlet 116, and the shape of the heat exchanger 120 can be matched with the air inlet 116, so that the air entering the cavity 111 through the air inlet 116 can be completely heated or cooled by the heat exchanger 120, improving the heat exchange efficiency of the heat exchanger 120. In a specific embodiment, the heat exchanger 120 of the vertical air conditioner indoor unit 100 in this embodiment can be V-shaped and bent backward. Moreover, the heat exchanger 120 can include a tube sheet 121 and elbows 122 at both ends of the tube sheet 121. The V-shaped heat exchanger 120 can effectively increase the heat exchange area and improve the heat exchange efficiency. As mentioned above, the heat exchange units of the heat exchanger 120 can gradually decrease from left to right to match the gradually decreasing air intake at the air inlet 117. As Figure 3 shown, the tube sheet 121 of the V-shaped heat exchanger 120 can gradually decrease from left to right, with the most rows at the left end, medium rows in the middle, and the fewest rows at the right end.

[0054] In a preferred embodiment, the vertical air conditioner indoor unit may further include: a baffle 140, disposed between the heat exchanger 120 and the air inlet grille 115, configured to fix the heat exchanger 120 and the air inlet grille 115 and play a buffering role. At present, the distance between the air inlet grille and the heat exchanger of the vertical air conditioner indoor unit is relatively close, and there is often a risk that the air inlet grille deforms and touches the heat exchanger when the unit is dropped during transportation. For the vertical air conditioner indoor unit 100 in this embodiment, by disposing the baffle 140 between the heat exchanger 120 and the air inlet grille 115, the transportation impact can be effectively reduced, and it can be avoided that the air inlet grille 115 deforms and collides with the heat exchanger 120 due to transportation drops, ensuring the working reliability of the vertical air conditioner indoor unit 100 and improving the user experience.

[0055] The air inlet grille of the existing vertical air conditioner indoor unit generally has separate components such as filter tracks, resulting in a large number of components, many installation overlapping surfaces, and difficult effective control of the problems of thermal expansion and contraction noise. However, the vertical air conditioner indoor unit 100 in this embodiment can well solve the above problems through a unique structural setting. In a specific embodiment, as Figure 3 shown, the air inlet grille 115 can include a body portion 151 and support portions 152 on the left and right sides of the body portion 151. That is to say, the body portion 151 and the support portions 152 on the left and right sides of the body portion 151 are integrally formed as the air inlet grille 115, realizing the integration of the air inlet grille 115, reducing parts and optimizing the structure.

[0056] In a preferred embodiment, the main body portion 151 and the support portions 152 on the left and right sides of the main body portion 151 can both be made of plastic, that is, the entire air inlet grille 115 is made of plastic. Compared with the traditional air inlet grille with two sheet metal columns on the left and right for support, the main body portion 151 and the support portions 152 on the left and right sides of the main body portion 151 in this embodiment are made of the same plastic material, which is convenient for realizing the integration of the air inlet grille 115 while taking into account the support strength.

[0057] In addition, the baffle 140 can have a flat plate portion 141 on the side close to the air inlet grille 115 and a convex portion 142 on the side close to the heat exchanger 120. The convex portion 142 is fixed to the tube sheet 121, and the front end of the flat plate portion 141 is fixed to the support portion 152 on the right side. Since both the convex portion 142 and the flat plate portion 141 are part of the baffle 140, and the convex portion 142 is fixed to the tube sheet 121, it actually realizes the fixation of the baffle 140 to the heat exchanger 120; the front end of the flat plate portion 141 is fixed to the support portion 152 on the right side, which actually realizes the fixation of the baffle 140 to the air inlet grille 115. That is to say, the baffle 140 is fixed to the heat exchanger 120 and the air inlet grille 115 respectively, so that the heat exchanger 120 and the air inlet grille 115 are indirectly fixed together.

[0058] For the indoor unit 100 of the vertical air conditioner in this embodiment, considering the optimal utilization efficiency of the heat exchanger 120, the elbow 122 of the heat exchanger 120 is relatively close to the air inlet grille 115 on the right side, and there is a risk that the air inlet grille 115 deforms and touches the elbow 122 during transportation and dropping. That is to say, the baffle 140 is arranged between the heat exchanger 120 and the air inlet grille 115 to achieve the function of buffering during dropping. In fact, it avoids the collision between the elbow 122 of the heat exchanger 120 and the air inlet grille 115, which may cause component damage, and effectively reduces various impacts during the transportation process.

[0059] The indoor unit 100 of the vertical air conditioner can further include: a filter screen (not shown in the figure), which is arranged at the air inlet grille 115 and is configured to perform primary filtration on the air entering the cavity 111. And the baffle 140 is further configured to: serve as a track for the filter screen so that the filter screen can slide in and be installed. Due to the problem formed by the ejection cam of the mold for the integrated air inlet grille 115, it is impossible to make a filter screen track structure. Therefore, it is very important that the baffle 140 in this embodiment serves as a track for the filter screen, which can enable the filter screen to slide in and be installed.

[0060] In addition, the internal components can often be seen through the air inlet grille at the rear of the current vertical air conditioner indoor unit. For example, the elbow part of the heat exchanger affects the visual effect of the whole machine. The baffle 140 of the vertical air conditioner indoor unit 100 in this embodiment can also be configured to: serve as an obstacle to the elbow 122 to prevent the elbow 122 from being seen from behind the air inlet grille 115. That is to say, in the vertical air conditioner indoor unit 100 of this embodiment, by setting the baffle 140, a single component can achieve multiple functions, effectively simplifying the structure of the vertical air conditioner indoor unit 100 and effectively improving the visual effect of the whole vertical air conditioner indoor unit 100.

[0061] The heat exchanger of the existing vertical air conditioner indoor unit often uses the heat exchanger tray component as the main support of the heat exchanger. The vertical air conditioner indoor unit 100 in this embodiment may further include: an air duct assembly 150, arranged at the rear side of the heat exchanger 120 and configured to fix the heat exchanger 120 to the air inlet grille 115. That is to say, the vertical air conditioner indoor unit 100 in this embodiment does not need to additionally set a tray component to support the heat exchanger 120, but uses the air duct assembly 150 that originally needs to be set to fix the heat exchanger 120, further reducing the number of parts and simplifying the structure.

[0062] It should be emphasized that the air duct assembly 150 can fix the heat exchanger 120 to the air inlet grille 115, and as mentioned before, the baffle 140 can indirectly fix the heat exchanger 120 and the air inlet grille 115 together. Through the air duct assembly 150 and the baffle 140, double fixation of the heat exchanger 120 and the air inlet grille 115 is achieved, effectively playing a strengthening role, improving the connection stability, and further reducing the risks of collision and impact that may occur during transportation and dropping.

[0063] In a specific embodiment, a horizontal swing blade (not shown in the figure) may also be provided at the air outlet 117. The vertical swing blade 118 can be configured to adjust the left - right air outlet direction at the air outlet 117, and the horizontal swing blade can be configured to adjust the up - down air outlet direction at the air outlet 117. In a specific embodiment, the horizontal swing blade and the vertical swing blade 118 are configured to adjust the specific posture according to the air supply mode. For example, the air supply mode may include a variety of different air supply instructions, and the horizontal swing blade and the vertical swing blade 118 can adjust the specific posture according to different air supply instructions.

[0064] More specifically, the specific postures of the vertical swing blade 118 may include facing left, facing middle, and facing right. The specific postures of the horizontal swing blade include facing up, facing middle, and facing down. In a preferred embodiment, the horizontal swing blade and the vertical swing blade 118 can also adjust the specific angle of the air outlet to achieve different air volumes. For example, when facing left, the air outlet angles of the vertical swing blade 118 can be different. When facing up, the air outlet angles of the horizontal swing blade can be different.

[0065] Regarding the specific posture of the horizontal swing blade, it should be noted that when the horizontal swing blade faces upward, the vertical air conditioner indoor unit 100 realizes upward air outlet, which is more suitable for the case where the vertical air conditioner indoor unit 100 operates in the cooling mode. Since the cold air is sent out by the vertical air conditioner indoor unit 100 in the cooling mode, according to the characteristics of the cold air, it will gradually sink after being blown upward, so that the temperature of the entire indoor environment can be reduced. The prevention of direct blowing of cold air can also effectively avoid situations such as headaches and colds for users.

[0066] When the horizontal swing blade faces downward, the vertical air conditioner indoor unit 100 realizes downward air outlet, which is more suitable for the case where the vertical air conditioner indoor unit 100 operates in the heating mode. Since the hot air is sent out by the vertical air conditioner indoor unit 100 in the heating mode, according to the characteristics of the hot air, it will gradually rise after being blown downward, so that the temperature of the entire indoor environment can be increased. The downward blowing of hot air can also blow more effectively towards the user, making the user feel warm and comfortable.

[0067] In addition, an air outlet guide plate (not shown in the figure) can also be provided at the air outlet 117, configured to open and close the air outlet 117. When the air outlet guide plate opens the air outlet 117, the air guided by the horizontal swing blade and the vertical swing blade 118 can be sent to the indoor environment. If the air outlet guide plate closes the air outlet 117, no air will be blown out at the air outlet 117. Generally, when the vertical air conditioner indoor unit 100 is closed, the air outlet guide plate can be made to close the air outlet 117 to prevent external dust from entering the interior of the housing 110 through the air outlet 117, effectively ensuring the cleanliness of the interior of the housing 110.

[0068] In summary, the vertical air conditioner indoor unit 100 of this embodiment includes: a housing 110, which defines a main air duct 181 and an auxiliary air duct 182 inside; a heat exchanger 120, arranged in the main air duct 181, configured to exchange heat with the air entering the main air duct 181; a main fan 130, arranged in the main air duct 181, configured to send out the heat-exchanged air; and an auxiliary fan 132, arranged in the auxiliary air duct 182, configured to send out the unheated air entering the auxiliary air duct 182. By setting the main air duct 181 and the auxiliary air duct 182, and cooperating with the main fan 130 and the auxiliary fan 132 therein, the heat-exchanged air and the unheated air can be mixed and sent to the indoor environment, thereby effectively solving the problem of too large a temperature difference between the air outlet temperature and the room temperature of the vertical air conditioner indoor unit 100 during cooling or heating, and fully meeting the comfort requirements of users.

[0069] Further, for the indoor unit 100 of the vertical air conditioner according to this embodiment, the housing 110 further includes a front scroll tongue 114 and a rear scroll tongue 113. One end of the front scroll tongue 114 and one end of the rear scroll tongue 113 are both connected to the front door panel 112, and an air outlet 117 is formed between the front scroll tongue 114 and the rear scroll tongue 113. A vertical swing blade 1118 is provided at the air outlet 117 and configured to be controllably rotated to a preset angle to reduce or eliminate the leftward deviation of the air supply caused by the auxiliary air duct 182, effectively improving the overall energy efficiency and enhancing the user experience.

[0070] Furthermore, for the indoor unit 100 of the vertical air conditioner according to this embodiment, both the main fan 130 and the auxiliary fan 132 are cross-flow fans or centrifugal fans, and the air inflow at the air inlet 117 gradually decreases from left to right; the heat exchange units of the heat exchanger 120 gradually decrease from left to right to match the gradually decreasing air inflow at the air inlet 117. Through the unique structural setting of the heat exchanger 120, the balance between the air inflow at the air inlet 117 and the heat exchange efficiency of the heat exchanger 120 is achieved.

[0071] Those skilled in the art should understand that, without special description, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc., which are used to represent the orientation or position relationship in the embodiments of the present invention, are only for the convenience of describing and understanding the technical solutions of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0072] The terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0073] Unless otherwise clearly stipulated and defined, terms such as "install", "connect", "join", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0074] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", or "under" the second feature may be the first feature being directly below or obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0075] In the description of this embodiment, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0076] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, still, without departing from the spirit and scope of the present invention, many other variations or modifications that conform to the principles of the present invention can be directly determined or derived based on the content disclosed in the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A vertical air conditioner indoor unit, comprising: A housing, which defines a main air duct and an auxiliary air duct inside; A heat exchanger, disposed in the main air duct, configured to exchange heat with the air entering the main air duct; A main fan, disposed in the main air duct, configured to send out the heat-exchanged air; And An auxiliary fan, disposed in the auxiliary air duct, configured to send out the unheated air entering the auxiliary air duct.

2. The vertical air conditioner indoor unit according to claim 1, wherein The air outlets of the main fan and the auxiliary fan converge, so that the heat-exchanged air and the unheated air are mixed and then sent to the indoor environment.

3. The vertical air conditioner indoor unit according to claim 2, further comprising: A deflector, which is disposed at the air outlet of the auxiliary fan as a part of the main air duct, and The deflector divides the auxiliary air duct into two parts, so as to mix air on both sides of the deflector respectively, and improve the air mixing effect.

4. The vertical air conditioner indoor unit according to claim 1, wherein The housing includes a front door panel, and a vertically penetrating micropore is provided on the right side of the front door panel, configured to allow the air in the indoor environment to enter the auxiliary air duct through the micropore.

5. The vertical air conditioner indoor unit according to claim 4, wherein The housing further includes: a front scroll tongue and a rear scroll tongue, and One end of the front scroll tongue and one end of the rear scroll tongue are both connected to the front door panel, An air outlet is formed between the front scroll tongue and the rear scroll tongue.

6. The vertical air conditioner indoor unit according to claim 5, wherein A vertical swing blade is provided at the air outlet, configured to be controlled to rotate to a preset angle to reduce or eliminate the leftward deviation of the air supply caused by the auxiliary air duct.

7. The vertical air conditioner indoor unit according to claim 4, wherein The housing further includes: an air inlet grille, connected to the front door panel, and an air inlet is provided on the air inlet grille, configured to allow the air in the indoor environment to enter the main air duct through the air inlet.

8. The vertical air conditioner indoor unit according to claim 7, wherein The air inlet grille includes a main body part and support parts on both left and right sides of the main body part, and The front side of the auxiliary air duct is lapped with the front door panel, and the rear side of the auxiliary air duct is connected to the support part on the right side.

9. The vertical air conditioner indoor unit according to claim 7, wherein Both the main fan and the auxiliary fan are cross-flow fans or centrifugal fans, and The air inflow at the air inlet gradually decreases from left to right.

10. The vertical air conditioner indoor unit according to claim 9, wherein The heat exchange units of the heat exchanger gradually decrease from left to right to match the gradually decreasing air inflow at the air inlet.

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