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 rear volute tongue, a front volute tongue and a rear volute tongue, the heat exchanger is arranged in the cavity and configured to conduct heat exchange on air entering the cavity, and one end of the heat exchanger is located on the rear side of the rear vortex tongue; the air supplementing structure is arranged on the rear side of the heat exchanger, is close to one end, located on the rear side of the rear vortex tongue, of the heat exchanger and is configured to compensate for the air volume blocked by the rear vortex tongue. According to the floor air conditioner indoor unit, the problems that the air volume at one end of the rear vortex tongue of the floor air conditioner indoor unit is blocked and the air speed is low can be solved by arranging the air supplementing structure, the overall energy efficiency is effectively improved, and the use experience of a user is improved; the air expansion structure is configured to increase the air inlet area of the heat exchanger, the heat exchange efficiency of the heat exchanger can be improved, the heat exchange effect of the floor air conditioner indoor unit is guaranteed, and the use requirements of users are fully met.

Description

Technical Field

[0001] The invention relates to the field of household electrical appliances, and in particular to a vertical air conditioner indoor unit. 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 equipment in people's daily lives. Various air conditioning devices can help people reach a temperature they can adapt to when the ambient temperature is too high or too low. Current 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 ways of setting the indoor unit. The indoor unit of the 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 to these places, so that the ambient temperature can meet the user's comfort needs as soon as possible. However, the wind speed of the existing vertical air conditioner indoor unit generally decreases slowly from the high wind area on the left to the end of the rear vortex tongue on the right, especially in the rear vortex tongue area. The wind speed decreases by times. The low wind speed directly leads to a decrease in the utilization efficiency of the heat exchanger. Due to the limitation of the wind speed, the heat exchanger on the right cannot perform at its optimal performance, affecting the heat exchange effect of the indoor unit of the vertical air conditioner, and cannot fully meet the user's use needs. Summary of the invention

[0004] One purpose of the present invention is to solve the problem of blocked air volume and slow wind speed at one end of a rear vortex tongue of a vertical air conditioner indoor unit, and effectively improve the overall energy efficiency.

[0005] A further object of the present invention is to improve the heat exchange efficiency of the heat exchanger by increasing the air inlet area of ​​the heat exchanger, thereby fully meeting the usage requirements of users.

[0006] In particular, the present invention provides a vertical air conditioner indoor unit, comprising:

[0007] A housing having a cavity defined therein, the housing comprising a rear scroll tongue;

[0008] a heat exchanger disposed in the cavity and configured to perform heat exchange on the air entering the cavity, wherein one end of the heat exchanger is located at the rear side of the rear vortex tongue; and

[0009] The air supply structure is arranged at the rear side of the heat exchanger and close to one end of the heat exchanger located at the rear side of the rear vortex tongue, and is configured to make up for the air volume blocked by the rear vortex tongue at this location.

[0010] Optionally, the vertical air conditioner indoor unit further includes:

[0011] The air supply fan is arranged in the cavity and located in front of the heat exchanger.

[0012] Both the air supply fan and the air make-up structure are cross-flow fans or centrifugal fans.

[0013] Optionally, the air make-up structure is also configured to make up for the reduced wind speed at one end of the heat exchanger located behind the rear scroll tongue caused by the air supply fan.

[0014] Optionally, the housing further includes a front door panel and a front scroll tongue, and

[0015] One end of the front scroll tongue and one end of the rear scroll tongue are both connected to the front door panel,

[0016] An air outlet is formed between the front scroll tongue and the rear scroll tongue.

[0017] Optionally, the housing further includes an air inlet grille connected to the front door panel. An air inlet is provided on the air inlet grille and is configured to allow the air in the indoor environment to enter the cavity through the air inlet.

[0018] Optionally, the indoor unit of the vertical air conditioner further includes:

[0019] A wind diffusing structure is provided between the air inlet grille and the heat exchanger, and the wind diffusing structure is located in the left middle part on the front side of the air inlet grille and is configured to increase the air inlet area of the heat exchanger.

[0020] Optionally, the indoor unit of the vertical air conditioner further includes:

[0021] A baffle is provided between the heat exchanger and the air inlet grille and is configured to fix the heat exchanger to the air inlet grille and play a buffering role.

[0022] Optionally, the air inlet grille includes a main body part and support parts on the left and right sides of the main body part,

[0023] The baffle has a flat plate part on the side close to the air inlet grille and a convex part on the side close to the heat exchanger.

[0024] Optionally, the heat exchanger is V-shaped and bent backward, and

[0025] The heat exchanger includes a tube sheet and elbows at both ends of the tube sheet.

[0026] Optionally, the convex part is fixed to the tube sheet, and the front end of the flat plate part is fixed to the support part on the right side.

[0027] The indoor unit of the vertical air conditioner according to the present invention includes: a housing whose interior defines a cavity, the housing including a rear scroll tongue; a heat exchanger disposed in the cavity and configured to exchange heat for the air entering the cavity, one end of the heat exchanger being located behind the rear scroll tongue; and an air make-up structure disposed behind the heat exchanger and close to the end of the heat exchanger located behind the rear scroll tongue, configured to make up for the air volume blocked by the rear scroll tongue here. By providing the air make-up structure, the problems of blocked air volume and slow wind speed at one end of the rear scroll tongue of the indoor unit of the vertical air conditioner can be solved, the overall energy efficiency can be effectively improved, and the user experience can be enhanced.

[0028] Furthermore, in the indoor unit of the vertical air conditioner of the present invention, the air diffusion structure is disposed between the air inlet grille and the heat exchanger, and the air diffusion structure is located in the left middle part on the front side of the air inlet grille, configured to increase the air inlet area of the heat exchanger, thereby improving the heat exchange efficiency of the heat exchanger, ensuring the heat exchange effect of the indoor unit of the vertical air conditioner, and fully meeting the user's usage requirements; the baffle is disposed between the heat exchanger and the air inlet grille, configured to fix the heat exchanger and the air inlet grille and play a buffering role. By providing a baffle between the heat exchanger and the air inlet grille, the transportation impact can be effectively reduced, and the deformation of the air inlet grille and the collision with the heat exchanger caused by transportation drops can be avoided, ensuring the working reliability of the indoor unit of the vertical air conditioner and enhancing the user's usage experience.

[0029] From the following detailed description of specific embodiments of the present invention in conjunction with the drawings, those skilled in the art will become more apparent about the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the drawings in an exemplary but not restrictive 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:

[0031] Figure 1 is a front view of the indoor unit of the vertical air conditioner according to an embodiment of the present invention;

[0032] Figure 2 is a side view of the indoor unit of the vertical air conditioner according to an embodiment of the present invention; and

[0033] 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

[0034] This embodiment provides an indoor unit of a vertical air conditioner, which can solve the problems of air volume obstruction and slow wind speed at one end of the rear scroll tongue of the vertical air conditioner by providing a supplementary air structure, effectively improving the overall energy efficiency and enhancing the user's usage experience. Figure 1 is a front view of the indoor unit 100 of the vertical air conditioner according to an embodiment of the present invention, Figure 2 is a side view of the indoor unit 100 of the vertical air conditioner according to an embodiment of the present invention, Figure 3 is a cross-sectional view of the indoor unit 100 of the 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, and a supplementary air structure 132.

[0035] Among them, an inner cavity 111 can be defined inside the housing 110, and the housing 110 can include a rear scroll tongue 113. The heat exchanger 120 can be disposed in the cavity 111 and configured to exchange heat with the air entering the cavity 111. One end of the heat exchanger 120 is located at the rear side of the rear scroll tongue 113. This may cause the air volume at one end of the heat exchanger 120 located at the rear side of the rear scroll tongue 113 to be blocked by the rear scroll tongue 113, resulting in air volume loss. Therefore, the air supply compensation structure 132 in this embodiment can be disposed at the rear side of the heat exchanger 120 and close to one end of the heat exchanger 120 located at the rear side of the rear scroll tongue 113, and is configured to compensate for the air volume blocked by the rear scroll tongue 113 here. The air supply compensation structure 132 can solve the problem that part of the air volume of the heat exchanger 120 is blocked by the rear scroll tongue 113, and can further increase the air volume and strongly boost the pressure.

[0036] In a specific embodiment, the indoor unit 100 of the vertical air conditioner may further include: a supply air fan 130, which is disposed in the cavity 111 and in front of the heat exchanger 120. The supply air fan 130 can send the air heat-exchanged by the heat exchanger 120 to the indoor environment. The common types of fans that can be used in the indoor unit of the air conditioner mainly include: centrifugal fans, cross-flow fans, and axial fans.

[0037] Among them, the air inside the centrifugal fan is affected by the centrifugal force, generating a vacuum degree in the center of the impeller. After the inhaled air turns 90° at the impeller inlet, it 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 being concentrated and guided, it is discharged from the outlet of the centrifugal fan.

[0038] The cross-flow fan can also be called a transverse flow fan. The air flow radially enters the blade grid from the open part of the impeller, passes through the inside of the impeller, and is discharged into the volute from the other side of the blade grid to form a working air flow. The air flow in the axial fan flows axially inside 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. The supply air fan 130 and the air supply compensation structure 132 in this embodiment can both be cross-flow fans or centrifugal fans. Preferably, both the supply air fan 130 and the air supply compensation structure 132 can be cross-flow fans.

[0039] A motor (not shown in the figure) can also be correspondingly provided for the supply air fan 130, configured to drive the supply air fan 130 to rotate. And the air supply speed of the indoor unit 100 of the vertical air conditioner can be adjusted by adjusting the rotation speed of the motor driving the supply air fan 130. Similarly, a motor can also be correspondingly provided for the air supply compensation structure 132, configured to drive the air supply compensation structure 132 to rotate.

[0040] In this embodiment, both the air supply fan 130 and the air make-up structure 132 can be cross-flow fans. This is because the axial length of the cross-flow fan is not restricted, 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 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.

[0041] For traditional vertical air conditioner indoor units with only a single air supply fan, the following problems are likely to occur: The cross-flow fan has an inherent problem of wind speed difference, which will cause the wind speed of the vertical air conditioner indoor unit to gradually decrease slowly 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 vertical air conditioner indoor unit and unable to fully meet the user's usage requirements. In this embodiment, this problem can be effectively solved by setting the air make-up structure 132. Specifically, the air make-up structure 132 can also be configured to make up for the slow wind speed at one end of the heat exchanger 120 located behind the rear volute tongue 113 caused by the air supply fan 130.

[0042] That is to say, for the vertical air conditioner indoor unit 100 of this embodiment, by arranging the air make-up structure 132 behind the heat exchanger 120 and close to one end of the heat exchanger 120 located behind the rear volute tongue 113, the problems of air volume obstruction and slow wind speed at one end of the rear volute tongue 113 of the vertical air conditioner indoor unit 100 can be solved, effectively improving the overall energy efficiency and the user experience.

[0043] In a preferred embodiment, the housing 110 of the vertical air conditioner indoor unit 100 may further include: a front door panel 112 and a front volute tongue 114. Moreover, one end of the front volute tongue 114 and one end of the rear volute tongue 113 are both connected to the front door panel 112, and an air outlet 117 is formed between the front volute tongue 114 and the rear volute tongue 113. In addition, the housing 110 may further include: an air inlet grille 115, which is 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.

[0044] Actually, the housing 110 may include a front door panel 112 and a rear panel 119, and the air inlet grille 115 may be provided on the rear panel 119. A filter screen may be provided at the air inlet 116 of the air inlet grille 115, so as to be able to preliminarily filter the air entering the cavity 111 through the air inlet 116 and improve the cleanliness of the interior of the vertical air conditioner indoor unit 100 and the finally discharged air. The formation of the air outlet 117 between the front volute tongue 114 and the rear volute tongue 113 can also be reflected on the front door panel 112.

[0045] In addition, the housing 110 may further include panels such as a top plate and a bottom plate. The arrangement of the top plate and the bottom plate can make the overall integrity of the vertical air conditioner indoor unit 100 better and make the vertical air conditioner indoor unit 100 more stable when installed in the indoor environment. The front door panel 112 and the rear panel 119 of the vertical air conditioner indoor unit 100 in this embodiment can be directly connected without additionally providing side panels. In some other embodiments, the housing 110 may further include side panels, which may include a left side panel and a right side panel, respectively connected to the front door panel 112 and the rear panel 119.

[0046] As mentioned above, the heat exchanger 120 is disposed in the cavity 111 and configured to exchange heat with the air entering the cavity 111. When the vertical air conditioner indoor unit 100 operates in the cooling mode, the air heated by the heat exchanger 120 is cold air, which can reduce the temperature of the indoor environment after being sent to the indoor environment through the air outlet 117, making the user feel cool. When the vertical air conditioner indoor unit 100 operates in the heating mode, the air heated by the heat exchanger 120 is hot air, which can increase the temperature of the indoor environment after being sent to the indoor environment through the air outlet 117, making the user feel warm.

[0047] In a specific embodiment, the vertical air conditioner indoor unit 100 can turn on 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 vertical air conditioner indoor unit 100 or the mobile terminal bound to the vertical air conditioner indoor unit 100. The mobile terminal can be a portable intelligent device, such as a smart phone, a tablet computer, etc.

[0048] The heat exchanger 120 can be disposed in the cavity 111 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 exchanged heat by the heat exchanger 120, improving the heat exchange efficiency of the heat exchanger 120. In a preferred embodiment, the vertical air conditioner indoor unit 100 may further include: a wind diffusing structure 160, disposed between the air inlet grille 115 and the heat exchanger 120. And, the wind diffusing structure 160 is located at the left middle part in front of the air inlet grille 115 and configured to increase the air inlet area of the heat exchanger 120, so as to further improve the heat exchange efficiency of the heat exchanger 120.

[0049] It should be noted that the vertical air conditioner indoor unit 100 in this embodiment, as a type of split air conditioner, can be commonly used in places such as homes and offices. The vertical air conditioner indoor unit 100 has advantages such as high power and strong wind force compared to the wall-mounted air conditioner indoor unit, and the price starting point is relatively higher. The vertical air conditioner indoor unit 100 is usually suitable for indoor environments with a relatively large area. For example, if the living room area is relatively large, it is best to choose the vertical air conditioner indoor unit 100 to ensure good cooling, heating, and air supply effects.

[0050] However, the body thickness of the existing vertical air conditioner indoor units is generally relatively thick, and usually has relatively high requirements for the installation space. The main factors restricting the reduction of the body thickness of the vertical air conditioner indoor unit are the heat exchanger 120 and ensuring the air inlet area of the air inlet grille 115. The body thickness of the current vertical air conditioner indoor units generally reaches 370 mm or even more.

[0051] Moreover, reducing the body thickness of the current vertical air conditioner indoor units often causes a part of the heat exchanger 120 to extend into the front door panel 112, resulting in the air inlet of the part extending into the front door panel 112 being blocked, the utilization efficiency of the heat exchanger 120 being poor, affecting the heat exchange effect of the vertical air conditioner indoor unit, and being unable to fully meet the user's usage requirements.

[0052] Specifically, in order to reduce the body thickness of the vertical air conditioner indoor unit 100, in this embodiment, the other end of the heat exchanger 120 far from the rear scroll tongue 113 can extend into the front door panel 112, and a air supply device similar to the air supply structure 132 (not shown in the figure) can be provided on the rear side of the heat exchanger 120 and far from the other end of the rear scroll tongue 113. The air supply device can be configured to make up for the air volume blocked by the front door panel 112 at the other end of the heat exchanger 120 far from the rear scroll tongue 113. By setting the air supply device, the problem of the air volume being blocked at the part where the heat exchanger 120 extends into the door panel can be effectively solved, the air volume and energy efficiency can be effectively improved, and the user's usage experience can be improved.

[0053] The vertical air conditioner indoor unit 100 of this embodiment can effectively reduce the body thickness of the vertical air conditioner indoor unit 100 while ensuring the air volume by setting the air supply device. Preferably, the body thickness of the vertical air conditioner indoor unit 100 of this embodiment is less than 370 mm, which can improve the overall aesthetics of the vertical air conditioner indoor unit 100 and reduce the occupied space. The reduction of the body thickness of the vertical air conditioner indoor unit 100 can also further expand its installation scenarios, making it possible to install in spaces that were previously restricted by the body thickness and unable to be installed.

[0054] In a specific embodiment, the body thickness of the vertical air conditioner indoor unit 100 can be 330 to 340 mm. Preferably, the body thickness of the vertical air conditioner indoor unit 100 can be 331 mm. The body thickness of the vertical air conditioner indoor unit 100 in this embodiment has been greatly reduced compared to the traditional body thickness of 370 mm or even more. It should be noted that the specific values of the above body thickness are only examples and are not limitations to the present invention. In some other embodiments, it can also be set to other values according to the actual situation, but all can be less than 370 mm.

[0055] 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. And, 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. However, at the same time, the V-shaped heat exchanger 120 will make the situation of air intake obstruction of the part of the heat exchanger 120 extending into the front door panel 112 more serious. Therefore, it is very crucial and effective to solve the problem of air volume obstruction of the part of the heat exchanger 120 extending into the door panel by setting an air supply compensation device.

[0056] It should be emphasized that the volume of the air supply compensation structure 132 and the air supply compensation device of the vertical air conditioner indoor unit 100 in this embodiment is smaller than that of the air supply fan 130. While the air supply fan 130 plays a major air supply role, the air supply compensation structure 132 and the air supply compensation device play an effective supplementary and cooperative role to make up for the air volume obstructed at both ends of the heat exchanger 120. The vertical air conditioner indoor unit 100 in this embodiment realizes air supply through the combined action of the air supply fan 130, the air supply compensation structure 132 and the air supply compensation device, and can effectively improve the air volume. In a specific embodiment, the air volume can be increased by about 40% compared with the traditional single-fan air supply. At the same time, the energy efficiency ratio APF of the vertical air conditioner indoor unit 100 can also be increased by about 25%.

[0057] 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 is deformed and touches the heat exchanger if it drops during transportation. For the vertical air conditioner indoor unit 100 in this embodiment, by setting a 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 is deformed and collides with the heat exchanger 120 due to transportation drop, ensuring the working reliability of the vertical air conditioner indoor unit 100 and improving the user experience.

[0058] The air inlet grille of the existing vertical air conditioner indoor unit generally has separate components such as a filter screen track, resulting in a large number of components, many installation overlapping surfaces, and difficulty in effectively controlling the volume problems caused by thermal expansion and contraction. However, the vertical air conditioner indoor unit 100 of 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 main body portion 151 and support portions 152 on the left and right sides of the main body portion 151. That is to say, the main body portion 151 and the support portions 152 on the left and right sides of the main body portion 151 are integrally formed as the air inlet grille 115, realizing the integration of the air inlet grille 115, reducing components and optimizing the structure.

[0059] 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 column 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 and taking into account the support strength at the same time.

[0060] 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, in fact, the baffle 140 is fixed 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, in fact, the baffle 140 is fixed 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.

[0061] For the vertical air conditioner indoor unit 100 of 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 play a role in buffering the drop, which actually avoids the collision between the elbow 122 of the heat exchanger 120 and the air inlet grille 115 and causes component damage, and effectively slows down various impacts during the transportation process.

[0062] The indoor unit 100 of the vertical air conditioner may further include: a filter screen (not shown in the figure), which is disposed at the air inlet grille 115 and configured to perform primary filtration on the air entering the cavity 111. Moreover, 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. Since the integrated air inlet grille 115 is limited by the problem formed by the ejection lifter of the mold, 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.

[0063] In addition, the internal components can often be seen through the air inlet grille at the rear of the current indoor unit of the vertical air conditioner, such as the elbow part of the heat exchanger, which affects the visual effect of the whole machine. The baffle 140 of the indoor unit 100 of the vertical air conditioner in this embodiment can also be configured to: serve as an obstruction for the elbow 122 to prevent the elbow 122 from being seen from behind the air inlet grille 115. That is to say, for the indoor unit 100 of the vertical air conditioner in this embodiment, by setting the baffle 140, a single component can achieve multiple functions, effectively simplifying the structure of the indoor unit 100 of the vertical air conditioner and effectively improving the visual effect of the whole machine of the indoor unit 100 of the vertical air conditioner.

[0064] In a specific embodiment, a horizontal louver (not shown in the figure) and a vertical louver 118 may further be provided at the air outlet 117. The vertical louver 118 may be configured to adjust the left-right air outlet direction at the air outlet 117, and the horizontal louver may be configured to adjust the up-down air outlet direction at the air outlet 117. In a specific embodiment, the horizontal louver and the vertical louver 118 are configured to adjust specific postures according to the air supply mode. For example, the air supply mode may include a variety of different air supply instructions, and the horizontal louver and the vertical louver 118 may adjust specific postures according to different air supply instructions.

[0065] More specifically, the specific postures of the vertical louver 118 may include facing left, facing middle, and facing right. The specific postures of the horizontal louver include facing up, facing middle, and facing down. In a preferred embodiment, the horizontal louver and the vertical louver 118 may also adjust the specific angles of the air outlet to achieve different air volumes. For example, for the same posture of facing left, the air outlet angles of the vertical louver 118 may be different. For the same posture of facing up, the air outlet angles of the horizontal louver may be different.

[0066] Regarding the specific posture of the horizontal louver, it should be noted that when the horizontal louver faces up, the indoor unit 100 of the vertical air conditioner realizes upward air outlet, which is more suitable for the situation where the indoor unit 100 of the vertical air conditioner operates in the cooling mode. Since the cold air is sent out by the indoor unit 100 of the vertical air conditioner 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 prevent users from having headaches, colds and other conditions.

[0067] The horizontal swing blades face downward, enabling the indoor unit 100 of the vertical air conditioner to achieve downward air outlet, which is more suitable for the case where the indoor unit 100 of the vertical air conditioner operates in the heating mode. Since the hot air is sent out by the indoor unit 100 of the vertical air conditioner 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. Blowing the hot air downward can also more effectively blow towards the user, making the user feel warm and comfortable.

[0068] In addition, an air outlet guide plate (not shown in the figure) can 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 blades and the vertical swing blades 118 can be sent to the indoor environment. If the air outlet guide plate closes the air outlet 117, no air will blow out at the air outlet 117. Generally, when the indoor unit 100 of the vertical air conditioner is turned off, 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.

[0069] In summary, the indoor unit 100 of the vertical air conditioner in this embodiment includes: a housing 110, which defines a cavity 111 inside, and the housing 110 includes a rear scroll tongue 113; a heat exchanger 120, disposed in the cavity 111, configured to exchange heat with the air entering the cavity 111, and one end of the heat exchanger 120 is located behind the rear scroll tongue 113; and a supplementary air structure 132, disposed behind the heat exchanger 120 and near one end of the heat exchanger 120 located behind the rear scroll tongue 113, configured to make up for the air volume blocked by the rear scroll tongue 113 here. By providing the supplementary air structure 132, the problems of blocked air volume and slow air speed at one end of the rear scroll tongue 113 of the indoor unit 100 of the vertical air conditioner can be solved, effectively improving the overall energy efficiency and enhancing the user experience.

[0070] Furthermore, in the indoor unit 100 of the vertical air conditioner in this embodiment, a wind expansion structure 160 is disposed between the air inlet grille 115 and the heat exchanger 120, and the wind expansion structure 160 is located in the left middle part in front of the air inlet grille 115, configured to increase the air inlet area of the heat exchanger 120, thereby improving the heat exchange efficiency of the heat exchanger 120, ensuring the heat exchange effect of the indoor unit 100 of the vertical air conditioner, and fully meeting the user's usage requirements; a baffle 140 is 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. By providing 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 deformation of the air inlet grille 115 caused by transportation drop collides with the heat exchanger 120, ensuring the working reliability of the indoor unit 100 of the vertical air conditioner and enhancing the user experience.

[0071] Those skilled in the art should understand that, without special instructions, terms indicating orientation or positional relationships 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. in the embodiments of the present invention are only for the convenience of describing and understanding the technical solutions of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation, and thus should not be construed as a limitation to the present invention.

[0072] Terms such as "first", "second", etc. are only used for descriptive purposes, and should not 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 such feature, that is, including one or more such features. In the description of the present invention, the meaning of "a plurality of" 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 specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of 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", "above", and "on" 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 descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0076] Up to 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, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. An indoor unit of a vertical air conditioner, comprising: A housing, which defines a cavity inside, and the housing includes a rear scroll tongue; A heat exchanger, disposed in the cavity, configured to exchange heat with the air entering the cavity, and one end of the heat exchanger is located at the rear side of the rear scroll tongue; And A supplementary air structure, disposed at the rear side of the heat exchanger and near one end of the heat exchanger located at the rear side of the rear scroll tongue, configured to make up for the air volume blocked by the rear scroll tongue here.

2. The indoor unit of the vertical air conditioner according to claim 1, further comprising: A supply air fan, disposed in the cavity and in front of the heat exchanger, Both the supply air fan and the supplementary air structure are cross-flow fans or centrifugal fans.

3. The indoor unit of the vertical air conditioner according to claim 2, wherein, The supplementary air structure is further configured to make up for the reduced air velocity at one end of the heat exchanger located at the rear side of the rear scroll tongue caused by the supply air fan.

4. The indoor unit of the vertical air conditioner according to claim 1, wherein, The housing further includes a front door panel and a front 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.

5. The indoor unit of the vertical air conditioner 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 cavity through the air inlet.

6. The indoor unit of the vertical air conditioner according to claim 5, further comprising: An air diffusing structure, disposed between the air inlet grille and the heat exchanger, and the air diffusing structure is located at the left middle part on the front side of the air inlet grille, configured to increase the air inlet area of the heat exchanger.

7. The indoor unit of the vertical air conditioner according to claim 5, further comprising: A baffle, disposed between the heat exchanger and the air inlet grille, configured to fix the heat exchanger to the air inlet grille and play a buffering role.

8. The indoor unit of the vertical air conditioner according to claim 7, wherein, The air inlet grille includes a main body part and support parts on the left and right sides of the main body part, The baffle has a flat part on the side close to the air inlet grille and a convex part on the side close to the heat exchanger.

9. The indoor unit of the vertical air conditioner according to claim 8, wherein, The heat exchanger is V-shaped and bent backward, and The heat exchanger includes a tube sheet and elbows at both ends of the tube sheet.

10. The indoor unit of the vertical air conditioner according to claim 9, wherein, The convex part is fixed to the tube sheet, and the front end of the flat part is fixed to the support part on the right side.

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