An air conditioner

Abstract

The embodiment of the application provides an air conditioner, and relates to the technical field of air conditioner equipment. The air conditioner comprises a shell, an evaporator and a fan blade which are arranged in the shell, the shell is provided with an air outlet, the evaporator comprises a first evaporation section, a circular arc section and a second evaporation section which are arranged in sequence, and the fan blade is located at one side of the evaporator close to the air outlet. An included angle between the first evaporation section and the second evaporation section is a, and a is 70-95 DEG. Since the included angle a between the first evaporation section and the second evaporation section is 70-95 DEG, the distance between the first evaporation section or the second evaporation section and the fan blade can be increased, sufficient space is ensured for air to spread before entering the evaporator, air volume attenuation is reduced, air inlet is smoother, and air inlet volume is improved.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of people's living standards, air conditioners, which can regulate temperature, have been used more and more widely.

[0003] In existing cabinet air conditioners, the evaporator has a 60° bending angle, and the distance between the evaporator and the fan blades is too short. This results in poor air intake, reduced airflow, and consequently, reduced system utilization and performance loss. Therefore, improving the evaporator layout and optimizing the distance between the evaporator and the fan blades in existing cabinet air conditioners is crucial.

[0004] Application content

[0005] The object of this invention includes providing an air conditioner that can increase the air intake volume of the air conditioner.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides an air conditioner, including a housing and an evaporator and a fan blade installed inside the housing. The housing is provided with an air outlet, and the evaporator includes a first evaporation section, an arc section and a second evaporation section arranged in sequence. The fan blade is located on the side of the evaporator near the air outlet.

[0008] The angle between the first evaporation section and the second evaporation section is α, where α is 70°–95°.

[0009] By setting the above, the distance between the first or second evaporation section and the fan blades can be increased, ensuring that the air has enough space to spread before entering the evaporator, reducing airflow attenuation, ensuring smoother air intake, and increasing airflow.

[0010] In an optional embodiment, the angle between the first evaporation section and the second evaporation section is 90°.

[0011] The above settings can make air intake smoother and increase the air volume.

[0012] In an optional embodiment, the angle between the first evaporation section and the second evaporation section is 80°.

[0013] The above settings can make air intake smoother and increase the air volume.

[0014] In an optional embodiment, the two ends of the arc segment are tangent to the first evaporation segment and the second evaporation segment, respectively.

[0015] By avoiding sharp corners, the airflow resistance is reduced, making the air intake smoother and increasing the air volume.

[0016] In an optional embodiment, the radius of the fan blade is R3, the distance between the axis of the fan blade and the inner wall of the outer casing in a first preset direction is D1, and the distance between the axis of the fan blade and the inner wall of the outer casing in a second preset direction is D2. The first preset direction is parallel to the horizontal direction and perpendicular to the axis of the fan blade. In the first preset direction, the fan blade points to the rear volute of the air conditioner. The first preset direction is opposite to the second preset direction, and 1.8R3 < D1 < 2R3, D1 < D2.

[0017] The above settings improve the smoothness of air intake, making the fan blades closer to the rear volute relative to the front volute of the air conditioner. This provides a larger bending space for the evaporator, allowing it to bend at a larger angle.

[0018] In an optional implementation, R3 = 71 mm and D1 = 135 mm.

[0019] The above settings ensure smooth airflow into the air conditioner.

[0020] In an optional implementation, R3 = 71 mm and D1 = 130 mm.

[0021] The above settings ensure smooth airflow into the air conditioner.

[0022] In an optional embodiment, the air conditioner further includes a rear volute, a rear volute, and a rear diffuser section. The rear volute has a first arc segment and a second arc segment that are connected and tangent to each other. The end of the first arc segment away from the second arc segment is connected to the rear volute. The rear diffuser section is connected and tangent to the end of the second arc segment away from the first arc segment. The radius of the first arc segment is R1, the radius of the second arc segment is R2, and the end of the first arc segment away from the second arc segment has a preset gap L in the radial direction with the fan blade. The radius of the fan blade is R3, R3+L≤R1<1.3R3, and R1<R2.

[0023] The above settings can make the airflow smoother and increase the air volume of the air conditioner vents.

[0024] In an optional implementation, R3 is 71 mm, L is 5 mm, R1 is 86.3 mm or 89.3 mm, and R2 is 111.2 mm or 112.2 mm.

[0025] In an optional implementation, the central angle corresponding to the first arc segment is 50°, and the central angle corresponding to the second arc segment is 40°.

[0026] An air conditioner provided in this embodiment of the invention includes a housing and an evaporator and a fan blade installed within the housing. The housing has an air outlet. The evaporator includes a first evaporation section and a second evaporation section at an angle. The fan blade is located on the side of the evaporator near the air outlet. The angle between the first and second evaporation sections is α, where α is 70–95°. Because the angle α between the first and second evaporation sections is 70–95°, the distance between the first or second evaporation section and the fan blade can be increased, ensuring that air has sufficient space to expand before entering the evaporator, reducing airflow attenuation, ensuring smoother air intake, and increasing the air intake volume. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the air conditioner provided in this embodiment;

[0029] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0030] Figure 3 A schematic table showing the angle α between the first evaporation section and the second evaporation section and the air volume growth rate is provided for this embodiment;

[0031] Figure 4 A line graph showing the angle α between the first evaporation section and the second evaporation section and the air volume growth rate provided in this embodiment;

[0032] Figure 5 The line graph showing the relationship between the rear volute radius and the air volume growth rate in this embodiment.

[0033] Icons: 1-Air conditioner; 100-Outer casing; 200-Evaporator; 210-First evaporator section; 220-Second evaporator section; 230-Circular arc section; 300-Air outlet; 400-Rear volute; 410-First circular arc section; 420-Second circular arc section; 500-Rear diffuser section; 600-Fan blade; 700-Rear volute tongue. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product is usually placed in during use, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0038] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0040] Some existing air conditioners 1 have poor air intake, which can easily cause abnormal noises. After research, the inventors found that the bending angle of the existing evaporator 200 is 60°, which makes the distance between the evaporator 200 and the fan blade 600 too close, resulting in poor air intake and thus reducing the air intake volume.

[0041] Therefore, this embodiment of the invention provides an air conditioner 1 to increase the air intake volume of the air conditioner 1, making the air intake of the air conditioner 1 smoother and reducing abnormal noises caused by air intake.

[0042] It should be noted that air conditioner 1 in this embodiment can be understood as a cabinet air conditioner. Please refer to [reference needed]. Figure 1 The first preset direction is the n-direction, and the second preset direction is the m-direction.

[0043] The following describes in detail, with reference to the accompanying drawings, the specific structure of an air conditioner 1 provided by an embodiment of the present invention and the corresponding technical effects it brings.

[0044] Please refer to Figures 1-2 An air conditioner 1 provided in this embodiment of the invention includes a housing 100 and an evaporator 200 and a fan blade 600 installed inside the housing 100. The housing 100 is provided with an air outlet 300. The evaporator 200 includes a first evaporation section 210, an arc section 230 and a second evaporation section 220 arranged in sequence. The first evaporation section 210 and the second evaporation section 220 form an angle. The fan blade 600 is located on the side of the evaporator 200 near the air outlet 300. The angle between the first evaporation section 210 and the second evaporation section 220 is α, where α is 70° to 95°.

[0045] Understandably, since the angle α between the first evaporation section 210 and the second evaporation section 220 is 70-95°, the distance between the first evaporation section 210 or the second evaporation section 220 and the fan blade 600 can be increased. This ensures that the air has sufficient space to expand before entering the evaporator 200, reducing airflow attenuation. This reduces airflow resistance, increases airflow volume and heat exchange efficiency, ensures smoother airflow, increases airflow volume, and makes airflow more uniform, thereby improving the overall performance of the cabinet air conditioner. It also reduces abnormal noises caused by poor airflow.

[0046] For example, the angle α between the first evaporation section 210 and the second evaporation section 220 can be 70°, 72°, 75°, 76°, 78°, 80°, 82°, 85°, 86°, 88°, 90°, 92° or 95°.

[0047] Please refer to Figures 3-4 Based on an air intake volume with an angle of 60° between the first evaporation section 210 and the second evaporation section 220, when the angle between the first evaporation section 210 and the second evaporation section 220 is 70°, the air volume growth rate relative to the angle of 60° is 2.7%. When the angle between the first evaporation section 210 and the second evaporation section 220 is 80°, the air volume growth rate relative to the angle of 60° is 4.6%. When the angle between the first evaporation section 210 and the second evaporation section 220 is 90°, the air volume growth rate relative to the angle of 60° is 5%.

[0048] As can be seen from the above, the greater the angle between the first evaporation section 210 and the second evaporation section 220, the greater the increase in air intake volume.

[0049] It should be noted that, in order to ensure the space utilization rate inside the air conditioner 1 and to avoid the evaporator 200 occupying too much space in the casing due to the large angle α between the first evaporator section 210 and the second evaporator section 220, and to ensure that the casing of the air conditioner 1 is relatively compact, in this embodiment, the angle α between the first evaporator section 210 and the second evaporator section 220 can be 90°.

[0050] Understandably, the 90° angle α between the first evaporation section 210 and the second evaporation section 220 helps ensure that airflow can enter the surface of the evaporator 200 evenly, improving heat exchange efficiency. This ensures smooth airflow, effectively utilizes space, and the 90° angle α between the first evaporation section 210 and the second evaporation section 220 provides good mutual support, ensuring the stability of the evaporator 200 during long-term use.

[0051] The first evaporation section 210 and the second evaporation section 220 are connected by an arc transition section 230. In other words, the first evaporation section 210 and the second evaporation section 220 are connected by an arc transition, which avoids sharp corners, reduces airflow resistance, makes air intake smoother, increases air intake volume, and thus enhances the performance of the cabinet air conditioner.

[0052] The arc transition also helps to reduce local turbulence, allowing the airflow to enter and exit the evaporator 200 more smoothly. In other words, the arc transition allows air to flow more smoothly from the first evaporation section 210 into the second evaporation section 220, reducing airflow separation and eddy currents. When the airflow passes through the arc transition area, it can also be better and more evenly distributed across the entire surface of the evaporator 200, improving heat exchange efficiency.

[0053] Furthermore, the two ends of the arc segment 230 are tangent to the first evaporation segment 210 and the second evaporation segment 220 respectively, which avoids sharp corners, reduces airflow resistance, makes air intake smoother, and increases air volume.

[0054] In detail, in this embodiment, the distance between the axis of the fan blade 600 and the inner wall of the outer casing 100 in the first preset direction is D1, and the distance between the axis of the fan blade 600 and the inner wall of the outer casing 100 in the second preset direction is D2. The radius of the fan blade 600 is R3. The first preset direction is parallel to the horizontal direction and perpendicular to the axis of the fan blade 600. In the first preset direction, the fan blade 600 points towards the rear volute 400 of the air conditioner 1. The first preset direction is opposite to the second preset direction.

[0055] In some existing air conditioners 1, the distance between the fan blade 600 and the inner wall of the outer casing 100 in a first preset direction is D1, which is approximately 2.25R3. In this case, the fan blade 600 will affect the bending angle of the evaporator 200, thereby affecting the air intake volume. For example, the air intake volume is based on the radius dimension R3 of the fan blade 600 being 71mm and the distance between the fan blade 600 and the inner wall of the outer casing 100 in the first preset direction being D1 being 140mm.

[0056] Optionally, in this embodiment, in order to improve the smoothness of air intake, the fan blade 600 can be made closer to the rear volute 400 relative to the front volute of the air conditioner 1, and the evaporator 200 can be bent at the largest possible angle to further improve the smoothness of air intake and increase the air intake volume, 1.8R3 < D < 2R3, D1 < D2.

[0057] In other words, in this embodiment, the fan blade 600 is closer to the rear volute 400 relative to the front volute of the air conditioner 1, so as to maximize the bending angle of the evaporator 200, that is, to maximize the included angle α between the first evaporator section 210 and the second evaporator section 220, so as to improve the smoothness of air intake.

[0058] For example, in this embodiment, when the radius of the fan blade 600 is R3 = 71mm, the distance D1 between the fan blade 600 and the inner wall of the outer casing 100 in the first preset direction can be 135mm or 130mm. Of course, in some other embodiments, D1 can be 135mm or 130mm instead of 140mm to improve the smoothness of air intake of the air conditioner 1.

[0059] Please continue to refer to this. Figures 1-2 In detail, the air conditioner 1 also includes a rear volute 700, a rear volute 400, and a rear diffuser section 500. The rear volute 400 has a first arc segment 410 and a second arc segment 420 that are connected and tangent to each other. The end of the first arc segment 410 away from the second arc segment 420 is connected to the rear volute 700. The rear diffuser section 500 is connected to and tangent to the end of the second arc segment 420 away from the first arc segment 410. The radius of the first arc segment 410 is R1, the radius of the second arc segment 420 is R2, and the end of the first arc segment 410 away from the second arc segment 420 has a preset gap L in the radial direction with the fan blade 600. The radius of the fan blade is R3.

[0060] Where R1 < R2, and the distance between the rear volute 400 and the fan blade 600 gradually increases in the direction close to the rear diffuser section 500.

[0061] In some existing air conditioners 1, the air outlet effect is poor. Research has found that the first arc segment 410 and the second arc segment 420 of the rear volute 400 affect the air outlet effect. In some existing air conditioners, R1≥1.3R3, the air outlet effect is poor.

[0062] Optionally, in some embodiments, R3+L≤R1<1.3R3, R1<R2, while ensuring that the end of the first arc segment 410 away from the second arc segment 420 has a preset gap L in the radial direction with the fan blade 600, and ensuring that the rear diffuser segment 500 remains unchanged and the second arc segment 420 is tangent to the rear diffuser segment 500, the first arc segment 410 and the second arc segment 420 are as close as possible to R3+L, which can increase the air volume of the same fan blade 600 at the same speed.

[0063] Optionally, 1.5R3≤R2<1.6R3.

[0064] For example, please refer to Figure 5 When R3 is 71mm and L is 5mm, with the fan blade rotating at the same speed of 600, the airflow of the volute is based on R1 being 92.3mm and R2 being 113.2mm.

[0065] Optionally, in order to ensure that the end of the first arc segment 410 away from the second arc segment 420 has a preset gap of 5mm with the fan blade 600, and to ensure that the second arc segment 420 is tangent to the rear diffuser segment 500 while the rear diffuser segment 500 remains unchanged.

[0066] Optionally, 80mm≤R1<92mm, 111mm≤R2<113.6.

[0067] For example, in the case of a rear volute 400 with R1 of 86.3mm and R2 of 111.2mm, the air volume growth rate is approximately 2% compared to R1 of 92.3mm and R2 of 113.2mm.

[0068] When the rear volute 400 has R1 of 89.3mm and R2 of 112.2mm, taking this as example 2, the air volume growth rate is approximately 0.3% compared to R1 of 92.3mm and R2 of 113.2mm.

[0069] When the rear volute 400 has R1 of 95.3mm and R2 of 114.2mm, taking this as example 3, the air volume growth rate is approximately -3.8% compared to R1 of 92.3mm and R2 of 113.2mm.

[0070] Optionally, based on the above analysis, in some embodiments, in order to ensure the air volume, R3 is 71mm, L is 5mm, R1 is 86.3mm, and R2 is 111.2mm.

[0071] Alternatively, in some other embodiments, in order to ensure air volume, R3 is 71mm, L is 5mm, R1 is 89.3mm, and R2 is 112.2mm.

[0072] Of course, in other embodiments, when R3 is 71mm and L is 5mm, R1 can also be 80mm, 81mm, 82mm, 83mm, 84mm, 85mm, 86mm, 87mm, 88mm, 89mm or 90mm. R2 can also be 111mm, 111.5mm, 112mm, 112.4mm, 112.5mm, 112.8mm or 113mm.

[0073] Of course, the preset gap L mentioned above is not limited to 5mm. The preset gap L can also be 4mm, 4.5mm, 5.5mm or 6mm.

[0074] It should be noted that in this embodiment, the central angle of the first arc segment 410 is 50° and the central angle of the second arc segment 420 is 40°, so as to ensure a smoother connection between the first arc segment 410 and the second arc segment 420. Since the first arc segment 410 and the second arc segment 420 are tangent, the airflow is smoother under the guidance of the first arc segment 410 and the second arc segment 420.

[0075] Similarly, since the second arc segment 420 is tangent to the rear diffuser segment 500, the air outlet of the air conditioner 1 provided in this embodiment is also smoother.

[0076] In summary, the air conditioner 1 provided by this embodiment of the invention includes a housing 100 and an evaporator 200 and a fan blade 600 installed within the housing 100. The housing 100 is provided with an air outlet 300. The evaporator 200 includes a first evaporation section 210, an arc section 230, and a second evaporation section 220 arranged sequentially. The fan blade 600 is located on the side of the evaporator 200 near the air outlet 300. The angle between the first evaporation section 210 and the second evaporation section 220 is α, where α is 70-95°. Since the angle α between the first evaporation section 210 and the second evaporation section 220 is 70-95°, the distance between the first evaporation section 210 or the second evaporation section 220 and the fan blade 600 can be increased, ensuring that the air has sufficient space to expand before entering the evaporator 200, reducing airflow attenuation, ensuring smoother air intake, and increasing the air intake volume.

[0077] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An air conditioner, characterized in that, The device includes a housing (100) and an evaporator (200) and a fan blade (600) installed inside the housing (100). The housing (100) is provided with an air outlet (300). The evaporator (200) includes a first evaporation section (210), an arc section (230) and a second evaporation section (220) arranged in sequence. The fan blade (600) is located on the side of the evaporator (200) near the air outlet (300). The angle between the first evaporation section (210) and the second evaporation section (220) is α, where α is 70-95°.

2. The air conditioner according to claim 1, characterized in that: The angle between the first evaporation section (210) and the second evaporation section (220) is 90°.

3. The air conditioner according to claim 1, characterized in that: The angle between the first evaporation section (210) and the second evaporation section (220) is 80°.

4. The air conditioner according to claim 1, characterized in that: The radius of the fan blade (600) is R3. The distance between the axis of the fan blade (600) and the inner wall of the outer casing (100) in a first preset direction is D1. The distance between the axis of the fan blade (600) and the inner wall of the outer casing (100) in a second preset direction is D2. The first preset direction is parallel to the horizontal direction and perpendicular to the axis of the fan blade (600). In the first preset direction, the fan blade (600) points towards the rear volute (400) of the air conditioner. The first preset direction is opposite to the second preset direction. 1.8R3 < D1 < 2R3, D1 < D2.

5. The air conditioner according to claim 4, characterized in that: R3 = 71mm, and D1 = 135mm.

6. The air conditioner according to claim 4, characterized in that: R3 = 71 mm, and D1 = 130 mm.

7. The air conditioner according to claim 1, characterized in that: The air conditioner further includes a rear volute (700), a rear volute (400), and a rear diffuser section (500). The rear volute (400) has a first arc segment (410) and a second arc segment (420) that are connected and tangent to each other. The end of the first arc segment (410) away from the second arc segment (420) is connected to the rear volute (700). The rear diffuser section (500) is connected to and tangent to the end of the second arc segment (420) away from the first arc segment (410). The radius of the first arc segment (410) is R1, the radius of the second arc segment (420) is R2, and the end of the first arc segment (410) away from the second arc segment (420) has a preset gap L with the fan blade (600). The radius of the fan blade is R3, R3+L≤R1<1.3R3, and R1<R2.

8. The air conditioner according to claim 7, characterized in that: R3 is 71mm, L is 5mm, R1 is 86.3mm or 89.3mm, and R2 is 111.2mm or 112.2mm.

9. The air conditioner according to claim 7, characterized in that: The central angle corresponding to the first arc segment (410) is 50°, and the central angle corresponding to the second arc segment (420) is 40°.

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