An air conditioner

Abstract

The application provides an air conditioner, and relates to the technical field of air conditioners. The air conditioner comprises an air conditioner body and a cross-flow fan blade. The cross-flow fan blade is arranged in the interior of the air conditioner body. The air conditioner body is provided with an air outlet in a first direction with the center of the cross-flow fan blade as a reference; and the air conditioner body has a rear wall in a second direction with the center of the cross-flow fan blade as a reference. The distance between the center of the cross-flow fan blade and the air outlet is a first preset distance; the distance between the rear wall and the center of the cross-flow fan blade is a second preset distance; the first direction and the second direction are opposite, and the first preset distance is smaller than the second preset distance. The air conditioner provided by the application can improve the air outlet effect of the air conditioner.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioner. Background Technology

[0002] With the development of technology, air conditioners are increasingly being used in consumers' living and working environments to improve comfort. Air conditioners deliver treated airflow to the environment, improving air quality and thus enhancing comfort. The cross-flow fan blades play a crucial role in this airflow delivery; therefore, their design directly affects the effectiveness of airflow delivery.

[0003] In existing technologies, the cross-flow fan blades are not optimally positioned within the overall unit, resulting in lower airflow performance. The relative positions of the evaporator and cross-flow fan blades are also suboptimal, leading to obstructed airflow. The overall airflow system is not fully utilized, impacting overall unit performance. Summary of the Invention

[0004] The problem solved by this invention is how to improve the air output effect of an air conditioner.

[0005] To address the above problems, the present invention provides an air conditioner, which includes an air conditioning unit and a cross-flow fan blade;

[0006] The cross-flow fan blades are disposed inside the air conditioner body;

[0007] The air conditioner body has an air outlet in a first direction with the center of the cross-flow fan blade as a reference; the air conditioner body has a rear wall in a second direction with the center of the cross-flow fan blade as a reference; the first direction and the second direction are opposite;

[0008] The distance between the center of the cross-flow fan blade and the air outlet is a first preset distance; the distance between the rear wall and the center of the cross-flow fan blade is a second preset distance; the first preset distance is less than the second preset distance.

[0009] Optionally, the ratio of the second preset distance to the first preset distance is less than 1.4.

[0010] Optionally, the air conditioner further includes an air outlet casing, which is disposed inside the air conditioner body, and the cross-flow fan blade is disposed inside the air outlet casing;

[0011] An air outlet duct is formed on the air outlet shell, and a volute tongue and a guide wall are formed on both sides of the air outlet duct, respectively; the volute tongue and the guide wall are located on both sides of the straight line in the first direction.

[0012] Optionally, the air conditioner body has a first sidewall in a third direction relative to the center of the cross-flow fan blade, the first sidewall and the volute tongue being located on the same side of the straight line of the first direction; the air conditioner body has a second sidewall in a fourth direction relative to the center of the cross-flow fan blade, the second sidewall and the air guide wall being located on the same side of the straight line of the first direction; the third direction is opposite to the fourth direction, and both the third direction and the fourth direction are perpendicular to the first direction;

[0013] The distance between the first sidewall and the center of the cross-flow fan blade is a third preset distance, and the distance between the second sidewall and the center of the cross-flow fan blade is a fourth preset distance; the third preset distance is greater than the fourth preset distance.

[0014] Optionally, the ratio of the third preset distance to the fourth preset distance is less than 1.2.

[0015] Optionally, the air conditioner further includes a heat exchanger, and the line connecting the center of the cross-flow fan blade and the point where the distance to the heat exchanger is the greatest is a first straight line, and the straight line in the first direction is a second straight line; the first straight line and the second straight line are set at an obtuse angle.

[0016] Optionally, the angle formed by the first straight line and the second straight line is greater than 140°.

[0017] Optionally, the heat exchanger includes a first straight section, a second straight section, and an arc section; the arc section is curved in an arc shape, and the first straight section and the second straight section are respectively disposed on both sides of the arc section; the cross-flow fan is located between the first straight section and the second straight section, and the distance between the center of the cross-flow fan and the arc section is greater than the distance between the center of the cross-flow fan and the first straight section, and also greater than the distance between the center of the cross-flow fan and the second straight section; the first straight line passes through the arc section.

[0018] Optionally, the first straight line passes through the middle of the arc segment.

[0019] Optionally, the first straight segment and the arc segment are located on the same side of the second straight line, and the first straight segment is parallel to the second straight line.

[0020] The advantages of the air conditioner provided in this invention compared to the prior art include:

[0021] This air conditioner optimizes the placement of the cross-flow fan blades, thereby optimizing the placement of the air outlet structure inside the air conditioner. Specifically, the first preset distance between the center of the cross-flow fan blades and the air outlet is set to be smaller than the second preset distance between the center of the cross-flow fan blades and the rear wall. This optimizes the air intake and exhaust of the air conditioner, allowing for smoother airflow. Furthermore, it fully utilizes the air duct formed by the exhaust structure, increasing the air volume of the exhaust structure and thus improving the air conditioner's exhaust performance.

[0022] Specifically, the ratio of the second preset distance to the first preset distance is set to be greater than 1 and less than 1.4, and the ratio of the third preset distance to the fourth preset distance is set to be greater than 1 and less than 1.2; the angle between the first straight line and the second straight line is set to be greater than 140° and less than 180°. This optimizes the air intake range of the air conditioner, allowing it to take in sufficient air and ensure sufficient air volume, thereby increasing the air output. In other words, it allows the air conditioner to take in and output air more smoothly. Furthermore, it can optimize the area of ​​the upper and lower sweeping blades, improve the sweeping effect of the upper and lower sweeping blades, reduce the landing distance of the airflow from the air conditioner, improve the air output effect, enhance the efficiency of air conditioning, and reduce energy consumption. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of the air conditioner provided in the embodiments of this application;

[0024] Figure 2 This is a cross-sectional view of the air conditioner provided in the embodiments of this application;

[0025] Figure 3 A comparison diagram showing the airflow landing distance before and after optimizing the upper and lower sweeping blades, in heating mode and when the cross-flow fan is running at its highest speed.

[0026] Figure 4 A comparison chart showing the effect of optimizing the airflow of an air conditioner before and after optimization.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10-Air conditioner; 11-First straight line; 12-Second straight line; 100-Air conditioner body; 110-Air outlet; 120-Rear wall; 130-First side wall; 140-Second side wall; 200-Air outlet structure; 210-Cross-flow fan blade; 220-Air outlet shell; 221-Vortex tongue; 222-Air guide wall; 223-Air outlet duct; 300-Heat exchanger; 310-First straight section; 320-Second straight section; 330-Circular arc section. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Please see Figure 1 This application provides an air conditioner 10, which includes an indoor unit and an outdoor unit. The indoor unit is installed in a designated area to provide air conditioning to the environment within that area, thereby improving the air quality and comfort of users. The outdoor unit is located outside the designated area and is connected to the indoor unit. During operation, the outdoor unit circulates refrigerant between the outdoor and indoor units to facilitate air conditioning from the indoor unit to the designated area. Since the indoor unit directly regulates the air in the designated area, in the following embodiments, "air conditioner 10" can refer to the "indoor unit" of the air conditioner 10.

[0031] In the embodiments of this application, the air conditioner 10 includes an air conditioning body 100 and a cross-flow fan blade 210. The cross-flow fan blade 210 is rotatably disposed inside the air conditioning body 100. When the cross-flow fan blade 210 rotates relative to the air conditioning body 100, airflow can be drawn into the air conditioning body 100 from one side. Then, guided by the cross-flow fan blade 210, the airflow is directed out from the other side of the air conditioning body 100 to a designated area, thereby providing air conditioning to that area. Of course, to facilitate the airflow outflow from the air conditioning body 100, an air outlet 110 is provided on the air conditioning body 100 for airflow outflow.

[0032] It should be noted that, in the embodiments of this application, the air conditioner 10 is described as a cabinet air conditioner. When the air conditioner 10 is normally placed, the air outlet 110 can be considered as being located on the front side of the air conditioner body 100, and the air outlet 110 can be considered as being vertically positioned. Correspondingly, the cross-flow fan blade 210 is vertically arranged inside the air conditioner body 100, and the rotation axis of the cross-flow fan blade 210 is approximately perpendicular to the horizontal plane.

[0033] Optionally, the air outlet 110 can be considered as one side of the air conditioning body 100 in a first direction with the center of the cross-flow fan blade 210 as a reference. Correspondingly, the air conditioning body 100 has a rear wall 120 in a second direction with the center of the cross-flow fan blade 210 as a reference. It is worth noting that the air conditioning body 100 has a front panel assembly (not shown) along the first direction, and the air outlet 110 is opened on the front panel assembly; the air conditioning body 100 has a rear panel assembly (not shown) along the second direction. The rear panel assembly and the front panel assembly together enclose the internal space of the air conditioning body 100, and the cross-flow fan is arranged in the internal space of the air conditioning body 100; the aforementioned rear wall 120 refers to the part of the structure of the rear panel assembly located in the second direction. The first direction and the second direction are opposite, in other words, the air outlet 110 and the rear wall 120 are located on opposite sides of the air conditioning body 100; of course, it can also be seen that the air outlet 110 and the rear wall 120 are located on opposite sides of the air conditioning body 100 in the front-rear direction, respectively. Here, "the first direction and the second direction are opposite" means that the line containing the first direction and the line containing the second direction are collinear. Of course, in other embodiments of this application, if the angle between the line containing the first direction and the line containing the second direction is less than 10°, the first direction and the second direction can be considered to be opposite. Figure 1 In the diagram, direction A represents the first direction, and direction B represents the second direction.

[0034] It is worth noting that the center of the cross-flow fan blade 210 refers to the point on the cross-section formed by the rotation axis of the cross-flow fan blade 210 on the horizontal plane of the air conditioner 10. Similarly, both the first direction and the second direction are parallel to the cross-section. The first direction can be considered as a ray extending from the center of the cross-flow fan blade 210 toward the air outlet 110. In addition, the plane of the air outlet 110 intersects the cross-section to form a straight line. In some embodiments of this application, the first direction is perpendicular to this straight line. It should be understood that in other embodiments of this application, the first direction can also be reset according to the opening method of the air outlet 110. For example, the straight line containing the first direction is the line connecting the position of the center of the cross-flow fan blade 210 closest to the air outlet 110 and the center of the cross-flow fan blade 210; or, for example, the straight line containing the first direction is the line connecting the center of the cross-flow fan blade 210 and the center of the air outlet 110.

[0035] To improve the poor airflow performance of the air conditioner 10 in the prior art, in other words, to improve the airflow efficiency of the air conditioner 10, the air conditioner 10 provided in this application embodiment has the following features: the distance between the center of the cross-flow fan blade 210 and the air outlet 110 is a first preset distance; the distance between the center of the cross-flow fan blade 210 and the rear wall 120 is a second preset distance; wherein the first preset distance is less than the second preset distance. It should be noted that, in the embodiments of this application, the distance between the center of the cross-flow fan blade 210 and the air outlet 110 refers to the distance between the center of the cross-flow fan blade 210 and the air outlet 110 in a first direction; the distance between the center of the cross-flow fan blade 210 and the rear wall 120 refers to the distance between the center of the cross-flow fan blade 210 and the rear wall 120 in a second direction.

[0036] By setting the first preset distance to be less than the second preset distance, the placement of the cross-flow fan blade 210 can be optimized, that is, the placement of the air outlet structure 200 inside the air conditioner 10 can be optimized. This optimizes the position of the heat exchanger 300 inside the air conditioner 10, thereby optimizing the air intake range and ensuring that the air conditioner 10 can receive sufficient air, thus increasing the air output of the air conditioning unit 100. In other words, by setting the first preset distance between the center of the cross-flow fan blade 210 and the air outlet 110 to be less than the second preset distance between the center of the cross-flow fan blade 210 and the rear wall 120, the air intake and exhaust of the air conditioner 10 can be optimized, allowing for smoother air intake and exhaust. Furthermore, the air outlet duct 223 formed by the air outlet structure 200 can be fully utilized, increasing the air output of the air outlet structure 200, thereby improving the air output effect of the air conditioner 10.

[0037] Optionally, in some embodiments of this application, the ratio of the second preset distance to the first preset distance is less than 1.4. It should be noted that the ratio of the second preset distance to the first preset distance refers to the ratio obtained by using the value of the second preset distance as the numerator and the value of the first preset distance as the denominator. In other words, in embodiments of this application, the ratio of the second preset distance to the first preset distance is greater than 1 and less than 1.4; optionally, the value of the ratio of the second preset distance to the first preset distance can be 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, or 1.35, etc.

[0038] By setting the ratio of the second preset distance to the first preset distance to be greater than 1 and less than 1.4, it is possible not only to ensure the optimized placement of the cross-flow fan blades 210 to improve the air intake effect of the air conditioning unit 100, thereby improving the air outlet effect, but also to ensure that the air outlet structure 200 has sufficient air outlet ducts 223, avoiding the situation where the first preset distance is too small, which would cause air outlet turbulence and lead to a deterioration in the air outlet effect. This can improve the air outlet effect of the air conditioner 10, thereby improving the air conditioning efficiency provided by the air conditioner 10 and saving energy.

[0039] In addition, in the embodiments of this application, the air conditioner 10 further includes an air outlet shell 220, which is the outer shell of the air outlet structure 200 and is used to form an air cavity. A cross-flow fan blade 210 is disposed inside the air outlet shell 220, that is, the cross-flow fan blade 210 is disposed inside the air outlet cavity. The air outlet shell 220 can provide a guiding function for the airflow, so that the airflow can be effectively discharged from the air outlet 110. An air outlet duct 223 is formed on the air outlet shell 220, which provides a guiding function for the airflow guided by the cross-flow fan blade 210 and directs the airflow to the air outlet 110 to facilitate the airflow being discharged from the air outlet 110. A volute tongue 221 and a guide wall 222 are formed on both sides of the air outlet duct 223, both of which can guide the airflow. Furthermore, in the embodiments of this application, the volute tongue 221 and the air guide wall 222 are located on both sides of the straight line of the first direction.

[0040] The air conditioning unit 100 has a first sidewall 130 in a third direction, with the center of the cross-flow fan blade 210 as the reference. The first sidewall 130 and the volute tongue 221 are located on the same side of the line containing the first direction. Additionally, the air conditioning unit 100 has a second sidewall 140 in a fourth direction, with the center of the cross-flow fan blade 210 as the reference. The second sidewall 140 and the air guide wall 222 are located on the same side of the line containing the first direction. The third and fourth directions are opposite, and both are perpendicular to the first direction. It should be understood that in other embodiments of this application, if the difference between the angle formed between the third and first directions and 90° is less than or equal to 5°, the third direction can be considered perpendicular to the first direction. Similarly, if the difference between the angle formed between the fourth and first directions and 90° is less than or equal to 5°, the fourth direction can be considered perpendicular to the first direction. Furthermore, if the angle between the line containing the third direction and the line containing the fourth direction is less than 10°, the third and fourth directions can be considered opposite. Figure 1 In the middle, C direction represents the third direction, and D direction represents the fourth direction.

[0041] It should be noted that, based on the assumption that the air outlet 110 and the rear wall 120 are located in the front-rear direction of the air conditioner 10, the first side wall 130 and the second side wall 140 can be considered as side walls in the left-right direction of the air conditioner 10, and this left-right direction is perpendicular to the front-rear direction. Furthermore, in the embodiments of this application, both the first side wall 130 and the second side wall 140 can be considered as part of the front bulkhead assembly.

[0042] In the embodiments of this application, the distance between the center of the first sidewall 130 and the center of the cross-flow fan blade 210 is a third preset distance, and the distance between the center of the second sidewall 140 and the center of the cross-flow fan blade 210 is a fourth preset distance. To further improve the air outlet effect of the air conditioner 10, the third preset distance is greater than the fourth preset distance. This arrangement further optimizes the placement of the cross-flow fan blade 210 inside the air conditioner 10, thereby optimizing the air intake effect of the air conditioner 10. With sufficient air intake, the air outlet volume of the air conditioner 10 can be increased. Furthermore, this arrangement also makes the air outlet structure 200 more efficient, ensuring that the airflow can be smoothly discharged from the air conditioning unit 100, thereby improving the air outlet effect.

[0043] Optionally, in some embodiments of this application, the ratio of the third preset distance to the fourth preset distance is less than 1.2. The ratio of the third preset distance to the fourth preset distance represents a ratio obtained by using the value of the third preset distance as the numerator and the value of the fourth preset distance as the denominator. In other words, in embodiments of this application, the ratio of the third preset distance to the fourth preset distance is greater than 1 and less than 1.2; optionally, the ratio of the second preset distance to the first preset distance can be 1.05, 1.1, or 1.15, etc.

[0044] By setting the ratio of the third preset distance to the fourth preset distance to be greater than 1 and less than 1.2, it is possible not only to ensure the optimized placement of the cross-flow fan blade 210 to improve the air intake effect of the air conditioning unit 100, thereby improving the air outlet effect, but also to ensure that the air outlet structure 200 has a smoother air outlet. This can improve the air outlet effect of the air conditioner 10, thereby improving the air conditioning efficiency provided by the air conditioner 10 and saving energy.

[0045] It is worth noting that by optimizing the placement of the cross-flow fan blades 210, the overall position of the air outlet structure 200 is optimized. This not only improves the air intake and exhaust effect of the air outlet structure 200, but also optimizes the spatial shape, spatial position, and spatial volume between the air outlet structure 200 and the air outlet 110. As a result, the area of ​​the upper and lower sweeping blades of the air conditioner 10 is optimized, thereby improving the sweeping effect of the upper and lower sweeping blades. This reduces the landing distance of the air outlet airflow of the air conditioner 10, improves the air outlet effect, enhances the efficiency of air conditioning, and reduces energy consumption.

[0046] like Figure 3 As shown, Figure 3 The diagram shows a comparison of the airflow landing distance before and after optimization of the upper and lower sweeping blades, under heating mode and the highest fan speed of the cross-flow fan 210. It can be seen that after optimizing the position of the cross-flow fan 210 of the air conditioner 10, the landing distance of the airflow from both the upper and lower sweeping blades at the upper and lower edges decreases within the commonly used height range. This demonstrates that optimizing the area of ​​the upper and lower sweeping blades reduces the airflow landing distance, thus improving the airflow efficiency.

[0047] Please refer to the embodiments in this application. Figure 1 and Figure 2 Taking the center of the cross-flow fan blade 210 as a reference, the line connecting the center of the cross-flow fan blade 210 and the point where the distance to the heat exchanger 300 is maximum is the first straight line 11; it should be noted that the first straight line 11 is located in the aforementioned cross section. Furthermore, the straight line containing the first direction is the second straight line 12; to optimize the installation method of the cross-flow fan blade 210, the first straight line 11 and the second straight line 12 are set at an obtuse angle; in other words, an obtuse angle is formed between the first straight line 11 and the second straight line 12. This not only optimizes the correspondence between the air inlet and the air outlet of the air outlet structure 200, thereby increasing the air inlet range of the air outlet structure 200, but also, with sufficient air intake, increases the air volume of the air conditioner 10, thereby improving the air outlet effect.

[0048] Optionally, in some embodiments of this application, the angle formed by the first straight line 11 and the second straight line 12 is greater than 140°. In other words, the angle formed by the first straight line 11 and the second straight line 12 is greater than 140° and less than 180°. That is, the angle between the first straight line 11 and the second straight line 12 can be 145°, 150°, 155°, 160°, 165°, 170° or 175°, etc.

[0049] It is worth noting that by setting the angle between the first straight line 11 and the second straight line 12 to be greater than 140° and less than 180°, the air intake of the exhaust structure 200 can be better optimized, thereby ensuring sufficient air intake and increasing the air volume of the exhaust structure 200. Figure 4 As shown, Figure 4 The image shows a comparison of the airflow volume of air conditioner 10 before and after optimization. Figure 4 The vertical axis represents the hourly air volume, meaning the unit of the vertical axis is meters (m). 2 / h; In addition, Figure 4 The horizontal axis in the figure represents the rotational speed of the cross-flow fan blade 210, and its unit is r / min. Figure 4The “before improvement” in the text refers to the curve of the air volume of the cross-flow fan blade 210 under different speeds before the air conditioner 10 was optimized. Figure 4 The phrase "after improvement" indicates the airflow curve of the cross-flow fan blade 210 at different speeds after optimizing the air conditioner 10. This shows that after optimizing the air conditioner 10, its airflow is effectively increased, significantly improving the airflow performance.

[0050] In an embodiment of this application, the heat exchanger 300 may optionally include a first straight section 310, a second straight section 320, and an arc section 330. The arc segment 330 is curved into an arc shape, and the first straight section 310 and the second straight section 320 are respectively arranged on both sides of the arc segment 330. The cross-flow fan blade 210 is located between the first straight section 310 and the second straight section 320. It should be noted that, in order to facilitate the positioning of the air outlet structure 200, the distance between the first straight section 310 and the second straight section 320 gradually increases from the side closer to the arc segment 330 to the side farther away from the arc segment 330, and the air outlet structure 200 is located at the end closer to the first straight section 310 and farther away from the arc segment 330. That is, the distance between the center of the cross-flow fan blade 210 and the arc segment 330 is greater than the distance between the center of the cross-flow fan blade 210 and the first straight section 310, and is also greater than the distance between the center of the cross-flow fan blade 210 and the second straight section 320. The first straight line 11 passes through the arc segment 330. Therefore, the first straight line 11 is the line connecting the center of the cross-flow fan blade 210 and the point on the arc segment 330 that is farthest from the cross-flow fan blade 210.

[0051] Of course, in other embodiments of this application, the shape and structure of the heat exchanger 300 can also be set in other ways. When the shape and structure of the heat exchanger 300 changes, for example, the arc segment 330 is canceled and a flat plate structure is used instead of the arc segment 330. In this case, the first straight line 11 can be formed with the point on the flat plate structure that is farthest from the center of the cross-flow fan blade 210 as the reference point.

[0052] Optionally, in embodiments of this application, to ensure that the airflow drawn into the outlet structure 200 can fully contact the heat exchanger 300 for heat exchange, the outlet structure 200 is approximately located in the middle of the first straight section 310 and the second straight section 320. This maximizes the distance between the cross-flow fan blade 210 and the middle of the arc section 330. Therefore, in some embodiments of this application, the first straight line 11 passes through the middle of the arc section 330. Thus, the line connecting the center of the cross-flow fan blade 210 and the middle of the arc section 330 can be considered as the first straight line 11. Of course, in other embodiments of this application, the position of the first straight line 11 can also be determined based on actual factors such as the location of the outlet structure 200 and the curvature of the arc section 330.

[0053] Furthermore, in some embodiments of this application, the first straight section 310 and the arc section 330 are located on the same side of the second straight line 12, and the first straight section 310 is parallel to the second straight line 12. With the first straight section 310 parallel to the second straight line 12, it can be ensured that the arc section 330 is positioned close to the rear side of the air conditioning unit 100. This facilitates the placement of the heat exchanger 300 corresponding to the air inlet of the air conditioning unit 100, improving airflow into the air conditioning unit 100, allowing for smoother airflow into the exhaust structure 200, and also facilitating the placement of the exhaust structure 200.

[0054] In summary, the air conditioner 10 provided in this embodiment optimizes the placement of the cross-flow fan blades 210, thereby optimizing the placement of the air outlet structure 200 inside the air conditioner 10. Specifically, the first preset distance between the center of the cross-flow fan blades 210 and the air outlet 110 is set to be less than the second preset distance between the center of the cross-flow fan blades 210 and the rear wall 120, thereby optimizing the air intake and exhaust of the air conditioner 10, allowing for smoother air intake and exhaust; furthermore, the air outlet duct 223 formed by the air outlet structure 200 can be fully utilized to increase the air volume of the air outlet structure 200, thereby improving the air outlet effect of the air conditioner 10. Specifically, the ratio of the second preset distance to the first preset distance is set to be greater than 1 and less than 1.4, and the ratio of the third preset distance to the fourth preset distance is set to be greater than 1 and less than 1.2; the angle between the first straight line 11 and the second straight line 12 is set to be greater than 140° and less than 180°. This optimizes the air intake range of the air conditioner 10, allowing it to take in sufficient air and ensure sufficient air volume, thereby increasing the air output. In other words, it allows the air conditioner 10 to take in and output air more smoothly. Furthermore, this also optimizes the area of ​​the upper and lower sweeping blades, improving their sweeping effect and reducing the landing distance of the air outlet airflow from the air conditioner 10, thus improving the air output effect, increasing the efficiency of air conditioning, and reducing energy consumption.

[0055] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An air conditioner, characterized in that, The air conditioner includes an air conditioning unit and cross-flow fan blades; The cross-flow fan blades are disposed inside the air conditioner body; The air conditioner body has an air outlet in a first direction with the center of the cross-flow fan blade as a reference; the air conditioner body has a rear wall in a second direction with the center of the cross-flow fan blade as a reference; the first direction and the second direction are opposite; The distance between the center of the cross-flow fan blade and the air outlet is a first preset distance; the distance between the rear wall and the center of the cross-flow fan blade is a second preset distance; the first preset distance is less than the second preset distance; The ratio of the second preset distance to the first preset distance is less than 1.4; The air conditioner also includes a heat exchanger. The line connecting the center of the cross-flow fan blade and the point where the distance to the heat exchanger is the greatest is a first straight line, and the straight line in the first direction is a second straight line. The first straight line and the second straight line are set at an obtuse angle.

2. The air conditioner according to claim 1, characterized in that, The air conditioner also includes an air outlet shell, which is disposed inside the air conditioner body, and the cross-flow fan blade is disposed inside the air outlet shell. An air outlet duct is formed on the air outlet shell, and a volute tongue and a guide wall are formed on both sides of the air outlet duct, respectively; the volute tongue and the guide wall are located on both sides of the straight line in the first direction.

3. The air conditioner according to claim 2, characterized in that, The air conditioner body has a first sidewall in a third direction with the center of the cross-flow fan blade as a reference, and the first sidewall and the volute tongue are located on the same side of the straight line of the first direction; the air conditioner body has a second sidewall in a fourth direction with the center of the cross-flow fan blade as a reference, and the second sidewall and the air guide wall are located on the same side of the straight line of the first direction; the third direction is opposite to the fourth direction, and both the third direction and the fourth direction are perpendicular to the first direction; The distance between the first sidewall and the center of the cross-flow fan blade is a third preset distance, and the distance between the second sidewall and the center of the cross-flow fan blade is a fourth preset distance; the third preset distance is greater than the fourth preset distance.

4. The air conditioner according to claim 3, characterized in that, The ratio of the third preset distance to the fourth preset distance is less than 1.

2.

5. The air conditioner according to claim 1, characterized in that, The angle formed by the first straight line and the second straight line is greater than 140°.

6. The air conditioner according to claim 1, characterized in that, The heat exchanger includes a first straight section, a second straight section, and an arc section; the arc section is curved in an arc shape, and the first straight section and the second straight section are respectively disposed on both sides of the arc section; the cross-flow fan is located between the first straight section and the second straight section, and the distance between the center of the cross-flow fan and the arc section is greater than the distance between the center of the cross-flow fan and the first straight section, and also greater than the distance between the center of the cross-flow fan and the second straight section; the first straight section passes through the arc section.

7. The air conditioner according to claim 6, characterized in that, The first straight line passes through the middle of the arc segment.

8. The air conditioner according to claim 6, characterized in that, The first straight segment and the arc segment are located on the same side of the second straight line, and the first straight segment is parallel to the second straight line.

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