Air supply device and air conditioning apparatus

Abstract

The application discloses an air supply device and air conditioning equipment. The air supply device comprises at least one air supply unit, and the air supply unit comprises a synthetic jet module and an air multiplier. The synthetic jet module comprises at least one synthetic jet, and the synthetic jet comprises a shell and a jet body. The shell has an air inlet and an air outlet. The jet body is arranged in the shell and defines an air channel with the shell. The air channel is communicated with the air inlet and the air outlet. The jet body has a jet port communicated with the air outlet and adapted to jet air flow to the air outlet. The air multiplier is located at a downstream side of the synthetic jet module. The air multiplier has at least one slit-shaped air outlet air duct. The air outlet of each synthetic jet is communicated with the air outlet air duct. According to the air supply device, the air supply device can realize air supply without a fan while meeting the air volume requirement, fundamentally solves the problem of high noise, and has no rotating part and no friction loss, so that the reliability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, in particular to an air supply device and an air conditioning equipment. BACKGROUND

[0002] In the related art, air conditioning equipment such as electric fans and air conditioners has air conditioning function, and air flow is driven by a fan to achieve air supply. However, during operation of the fan, a large noise is usually generated due to mechanical vibration and aerodynamic turbulence, and mechanical rotation of the fan rotor will wear the bearing, which will cause more vibration and greater noise.

[0003] In order to reduce the noise generated by the operation of the fan, a fan without blades appears in the related art, although the noise is reduced, the fan without blades still has the above-mentioned problems because it generates original air flow by using the fan. SUMMARY

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present application is to provide an air supply device which utilizes the characteristics of fast speed and large wind pressure of synthetic jet to generate original air flow, and the air flow ejected by the synthetic jet module is ejected at high speed through the air outlet air duct of the air multiplier to achieve air multiplication, so as to meet the air volume requirement, realize fanless air supply, fundamentally solve the problem of high noise, and realize low-noise air supply; and there is no rotating part and no friction loss, so the reliability is improved.

[0005] The present application also provides an air conditioning equipment having the above-mentioned air supply device.

[0006] According to the air supply device of the first aspect of the present application, at least one air supply unit is provided, and the air supply unit comprises: a synthetic jet module, the synthetic jet module comprises at least one synthetic jet device, the synthetic jet device comprises an outer shell and a jet device body, the outer shell has an air inlet and an air outlet, the jet device body is arranged in the outer shell and defines an air channel with the outer shell, the air channel communicates the air inlet and the air outlet, and the jet device body has a jet port which communicates with the air outlet and is adapted to jet air flow to the air outlet; an air multiplier is located on the downstream side of the synthetic jet module, the air multiplier has at least one air outlet air duct in the form of a slit, and the air outlet of each synthetic jet device communicates with the air outlet air duct.

[0007] According to the air supply device, the synthetic jet module is arranged instead of the traditional fan, the synthetic jet module has the characteristics of high speed and high wind pressure, original airflow is generated, the airflow is driven, air supply is realized, the air multiplier is arranged on the downstream side of the synthetic jet module, the airflow ejected by the synthetic jet module is ejected at high speed through the air outlet air duct of the air multiplier, Bernoulli effect is utilized, air multiplication is realized, a large amount of air is driven to flow by the original airflow generated by the synthetic jet, the requirement of air volume is met, air supply without fan is realized, the problem of high noise is fundamentally solved, and low-noise air supply is realized; and no rotating part and no friction loss, reliability is improved.

[0008] According to some embodiments of the present application, the flow area of the air outlet is less than the flow area of the air channel; and / or, the flow area of the air outlet is not greater than the flow area of the ejection port.

[0009] According to some embodiments of the present application, the ejection port is opposite to the air outlet, and the central axis of the air outlet coincides with the central axis of the ejection port.

[0010] According to some embodiments of the present application, the air channel comprises: a first air channel, the inner peripheral surface of the shell and the outer peripheral surface of the jet device body are spaced apart and define the first air channel; a second air channel, the second air channel is located on the downstream side of the first air channel, and the second air channel communicates the ejection port and the air outlet.

[0011] According to some embodiments of the present application, the jet device body comprises a jet device shell and a piezoelectric element, at least part of the jet device shell is a vibrating diaphragm, a compression cavity communicating with the ejection port is defined in the jet device shell, and the piezoelectric element is arranged on the vibrating diaphragm and located outside the compression cavity.

[0012] According to some embodiments of the present application, the air multiplier has a flow surface for guiding airflow, the flow surface comprises a first flow surface, a guide surface and a second flow surface, the first flow surface constitutes part of the wall surface of the air outlet air duct, the second flow surface is connected on the downstream side of the first flow surface and located outside the air outlet air duct, the guide surface is connected between the first flow surface and the second flow surface, one side of the flow surface for the airflow is a flow side, and the guide surface is formed as a curved surface bending and protruding towards the flow side.

[0013] According to some embodiments of the present application, the air multiplier has an air cavity, the wall of the air multiplier is formed with the air outlet air duct, and the air cavity communicates the air outlet of the synthetic jet device and the air outlet air duct.

[0014] According to some optional embodiments of the present invention, the synthetic jet module is configured as an elongated strip formed by arranging a plurality of the synthetic jets and extending in a direction perpendicular to or inclined to the central axis of the air outlet, the air multiplier being elongated and consistent with the extension direction of the synthetic jet module, and the air outlet duct extending in an elongated slit shape along the extension direction of the air multiplier.

[0015] According to some optional embodiments of the present invention, the air supply device further includes: an air manifold located between the synthetic jet module and the air multiplier, the air manifold having a confluence cavity communicating with the air outlet and the air cavity.

[0016] In some specific embodiments of the present invention, the air manifold is connected to the synthetic jet module, and the air outlet is located inside the manifold cavity; and / or, the air manifold is connected to the air multiplier, and the airflow outlet of the manifold cavity is opposite to and connected to the airflow inlet of the air cavity.

[0017] According to some embodiments of the present invention, all the synthetic jet generators of the synthetic jet module are arranged in rows, columns, multiple rows and columns, or irregularly; and / or, there are multiple air supply units, which are arranged in the vertical direction, the horizontal direction, or at least some of the multiple air supply units are staggered in the front-back direction.

[0018] An air conditioning device according to a second aspect of the present invention includes: an air supply device according to the first aspect of the present invention described above.

[0019] According to the air conditioning equipment of the present invention, by setting the above-mentioned air supply device, the air volume requirement can be met while achieving fanless air supply, fundamentally solving the problem of high noise and achieving low-noise air supply; moreover, there are no rotating parts and no friction loss, thus improving reliability.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the indoor unit of an air conditioning device according to some embodiments of the present invention.

[0023] Figure 2 yes Figure 1 Exploded view of the indoor unit;

[0024] Figure 3 yes Figure 1 A sectional view of the indoor unit;

[0025] Figure 4 yes Figure 1 A schematic diagram of the air supply device in the middle;

[0026] Figure 5 yes Figure 4 A schematic diagram of the air manifold of the air supply device in the diagram;

[0027] Figure 6 yes Figure 4 A schematic diagram of the air multiplier in the air supply device;

[0028] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0029] Figure 8 yes Figure 4 A schematic diagram of the synthetic jet module in the image;

[0030] Figure 9 yes Figure 8 A schematic diagram of a single synthetic jet injector;

[0031] Figure 10 yes Figure 9 A cross-sectional view of the synthetic jet generator in the image;

[0032] Figure 11 yes Figure 8 A cross-sectional view of the two synthetic jet injectors in the image;

[0033] Figure 12 This is a cross-sectional view of an air supply device according to some embodiments of the present invention;

[0034] Figure 13 yes Figure 12 A cross-sectional view of the air multiplier in the middle;

[0035] Figure 14 This is a cross-sectional view of an air supply device according to some embodiments of the present invention;

[0036] Figure 15 yes Figure 14 A cross-sectional view of the air multiplier in the image.

[0037] Figure label:

[0038] 100. Indoor unit;

[0039] 10. Housing; 11. Rear housing; 12. Top panel; 13. Front frame; 14. Air inlet; 15. Air outlet;

[0040] 20. Air supply device; 30. Air supply unit;

[0041] 40. Synthetic jet module; 2. Synthetic jet injector; 21. Housing; 22. Air inlet; 23. Air outlet; 24. Air passage; 241. First air passage; 242. Second air passage; 25. Connecting bracket; 251. Communicating hole; 26. Jet injector body; 261. Jet injector shell; 262. Vibrating diaphragm; 263. Piezoelectric element; 264. Compression chamber; 265. Injection port;

[0042] 3. Air manifold; 31. Manifold cavity; 32. Opening; 33. Airflow outlet;

[0043] 4. Air multiplier; 41. Air cavity; 42. Air outlet duct; 421. Air inlet; 422. Air outlet; 43. Flow surface; 431. First flow surface; 432. Second flow surface; 433. Guide surface; 44. Airflow inlet; 45. Flow side;

[0044] 50. Fixed bracket;

[0045] 60. Heat exchanger; 70. Water receiving tray; 80. Electrical control components. Detailed Implementation

[0046] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0047] The air supply device 20 according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0048] Reference Figures 2-4 According to a first aspect of the present invention, the air supply device 20 includes an air supply unit 30, which can supply air and play a role in regulating indoor air.

[0049] The air supply unit 30 can be one or more. When there are multiple air supply units 30, they can be arranged in a set manner as needed, so that the air supply device 20 can supply air according to a set area and range. Compared with a single air supply unit 30, the air supply volume of the air supply device 20 can be increased to meet the requirements of large air volume and improve the efficiency of indoor air conditioning.

[0050] It should be noted that "multiple" in this invention refers to two or more.

[0051] Optionally, when the air supply device 20 includes multiple air supply units 30, the multiple air supply units 30 can be controlled synchronously. When the air supply device 20 is turned on, all the air supply units 30 of the air supply device 20 are turned on at the same time, thereby achieving a large air volume; when the air supply device 20 is turned off, all the air supply units 30 of the air supply device 20 are turned off at the same time.

[0052] Optionally, when the air supply device 20 includes multiple air supply units 30, each air supply unit 30 can be independently controlled. Different numbers of air supply units 30 can be activated depending on the required air supply range and air volume. For example, when the required air supply range is small or the required air volume is low, one or a smaller number of air supply units 30 can be activated; when the required air supply range is large or the required air volume is high, a larger number or all of the air supply units 30 can be activated. By independently controlling each air supply unit 30, the air supply modes of the air supply device 20 can be diversified to meet more of the user's air supply needs.

[0053] For example, when there are multiple air supply units 30, they can be arranged vertically. When multiple air supply units 30 are turned on simultaneously, a wide range of air supply in the vertical direction can be achieved. When each air supply unit 30 can be controlled independently, multiple areas of air supply can be selected in the vertical direction. For example, the air supply unit 30 located on the upper side can be controlled to supply air to a higher area, and the air supply unit 30 located on the lower side can be controlled to supply air to a lower area. When the air supply device 20 is used in an air conditioner, when the air conditioner is in cooling mode, the air supply unit 30 located on the upper side can be controlled to supply air, which is beneficial for the uniformity of the overall indoor temperature, taking advantage of the fact that cold air tends to sink. When the air conditioner is in heating mode, the air supply unit 30 located on the lower side can be controlled to supply air, which is also beneficial for the uniformity of the overall indoor temperature, taking advantage of the fact that hot air tends to rise.

[0054] For example, when there are multiple air supply units 30, they can be arranged in a left-right direction. When multiple air supply units 30 are turned on simultaneously, a wide range of air supply in the left-right direction and a large-angle air supply can be achieved. When each air supply unit 30 can be controlled independently, multiple areas of air supply can be selected in the left-right direction. For example, the air supply unit 30 on the left can be controlled to supply air to the left area of ​​the air supply device 20, and the air supply unit 30 on the right can be controlled to supply air to the right area of ​​the air supply device 20. When a user is at different angles of the air supply device 20, the user can turn on the air supply unit 30 in the corresponding area as needed. When there are multiple users in the room where the air supply device 20 is located, the air supply units 30 in both the left and right areas can supply air, so that users at different angles of the air supply device 20 can all feel the airflow.

[0055] For example, when there are multiple air supply units 30, these units can be arranged in multiple rows and columns in both the left-right and up-down directions. When all air supply units 30 are activated, air supply over a larger area can be achieved, further increasing the air volume and range. Furthermore, when each air supply unit 30 is independently controlled, the selection of the air supply area by the air supply device 20 becomes more diverse. For example, it can achieve upper area air supply, lower area air supply, left area air supply, right area air supply, upper left area air supply, lower left area air supply, upper right area air supply, and lower right area air supply, meeting more of the user's air supply requirements.

[0056] For example, when there are multiple air supply units 30, at least some of the multiple air supply units 30 are staggered in the front-back direction. In this way, when at least some of the air supply units 30 are arranged in the front-back direction, the air supply units 30 arranged in the front-back direction are staggered in the front-back direction, which can prevent the air supply unit 30 located in front from blocking the air supply unit located behind it, so that each air supply unit 30 can smoothly supply air forward.

[0057] Optionally, when there are multiple air supply units 30, two adjacent air supply units 30 can be detachably connected, thereby facilitating the maintenance and replacement of the air supply units 30. Of course, the air supply device 20 may also include a mounting bracket, and multiple air supply units 30 can be mounted on the mounting bracket. The air supply units 30 can be detachably mounted on the mounting bracket, thereby facilitating the maintenance and replacement of the air supply units 30.

[0058] Reference Figures 2-4 The air supply unit 30 may include a synthetic jet module 40, which can replace a traditional fan to drive the airflow and generate the original airflow, thereby achieving air supply.

[0059] The synthetic jet module 40 may include at least one synthetic jet injector 2, or multiple synthetic jet injectors 2. When the synthetic jet module 40 includes multiple synthetic jet injectors 2, all the synthetic jet injectors 2 of the synthetic jet module 40 may be arranged in rows, such as sequentially arranged in rows along the horizontal direction, or sequentially arranged in rows along the left-right direction; or, all the synthetic jet injectors 2 of the synthetic jet module 40 may be arranged in columns, such as sequentially arranged in columns along the vertical direction; or, all the synthetic jet injectors 2 of the synthetic jet module 40 may be arranged in multiple rows and columns, such as in both the left-right and vertical directions; or, all the synthetic jet injectors 2 of the synthetic jet module 40 may be arranged randomly.

[0060] Optionally, when the synthetic jet module 40 includes multiple synthetic jet injectors 2, adjacent synthetic jet injectors 2 in the synthetic jet module 40 are connected, thereby making the synthetic jet module 40 a whole, resulting in a compact overall structure and reduced space occupation. Optionally, adjacent synthetic jet injectors 2 in the synthetic jet module 40 can be detachably connected, thereby facilitating the maintenance and replacement of individual synthetic jet injectors 2.

[0061] Reference Figure 9 and Figure 10 The synthetic jet ejector 2 may include a housing 21 and an ejector body 26. The housing 21 may have an air inlet 22 and an air outlet 23. The ejector body 26 is disposed within the housing 21, and an air passage 24 may be defined between the ejector body 26 and the housing 21. The air passage 24 may connect the air inlet 22 and the air outlet 23. The ejector body 26 has a nozzle 265, which can eject airflow. The nozzle 265 of the ejector body 26 is connected to the air outlet 23. When the ejector body 26 is in operation, the nozzle 265 of the ejector body 26 is adapted to eject airflow to the air outlet 23.

[0062] When airflow is ejected from the nozzle 265 of the jet injector body 26 to the air outlet 23, the ejected airflow has a high velocity, utilizing Bernoulli's principle. This creates a negative pressure between the nozzle 265 and the air outlet 23, driving external air from the air inlet 22 into the air channel 24 and flowing towards the air outlet 23. This results in the airflow from the nozzle 265 of the jet injector body 26 mixing with the airflow entering the air channel 24 from the air inlet 22 before being ejected from the air outlet 23, thus driving the airflow and generating the initial airflow for ventilation. The structure of this synthetic jet injector 2 utilizes Bernoulli's principle to expand the jet flow of the jet injector body 26. The synthetic jet module 40 can replace a traditional fan, achieving fanless air delivery, fundamentally solving the problem of high noise and achieving low-noise air delivery; furthermore, with no rotating parts and no frictional losses, reliability is improved.

[0063] Optionally, the ejector body 26 can be a piezoelectric ejector, which uses reverse piezoelectricity to cause a change in the volume of air in the compression chamber 264 of the ejector body 26, thereby generating an airflow that is ejected from the injection port 265 of the ejector body 26.

[0064] Optionally, when the synthetic jet module 40 includes multiple synthetic jet injectors 2, the orientation of the nozzles 265 of all synthetic jet injectors 2 in the synthetic jet module 40 can be the same. For example, the nozzles 265 of all synthetic jet injectors 2 in the synthetic jet module 40 can face forward, thereby enabling forward air delivery.

[0065] Furthermore, the air supply device 20 also includes an air multiplier 4, which can be located downstream of the synthetic jet module 40 (the downstream side being relative to the airflow direction). The original airflow generated by the synthetic jet module 40 is multiplied by the air multiplier 4 to meet the airflow requirements. The air multiplier 4 has a slit-shaped air outlet duct 42, and the air outlet 23 of each synthetic jet 2 can be connected to the air outlet duct 42. The airflow from the air outlet 23 of each synthetic jet 2 can flow into the air outlet duct 42. Since the air outlet duct 42 is slit-shaped, the velocity of the airflow flowing into the air outlet 42 can be further increased when it is ejected from the air outlet 422 within the air outlet duct 42. Utilizing Bernoulli's principle, a large negative pressure is generated near the high-speed airflow ejected from the air outlet 42, thereby driving more external airflow and achieving air multiplication, increasing the airflow of a single air supply unit 30, and meeting the airflow requirements. Furthermore, given a fixed air volume requirement, the number of synthetic jet injectors 2 can be reduced, thereby reducing the volume of the air supply unit 30. When the air supply device 20 is used in an air conditioning device, the volume of the air conditioning device can be reduced.

[0066] According to the embodiment of the present invention, the air supply device 20 replaces the traditional fan with a synthetic jet module 40. Utilizing the high speed and high pressure of the synthetic jet from the synthetic jet module 40, a primary airflow is generated, driving the airflow and thus achieving air supply. Furthermore, by setting an air multiplier 4 downstream of the synthetic jet module 40, the airflow ejected from the synthetic jet module 40 is ejected at high speed through the air outlet duct 42 of the air multiplier 4. Utilizing Bernoulli's principle, air multiplication is achieved. The primary airflow generated by the synthetic jet drives a large volume of airflow, thereby meeting the required air volume. This allows for fanless air supply, fundamentally solving the problem of high noise and achieving low-noise air supply. Moreover, the absence of rotating parts and frictional losses improves reliability.

[0067] According to some embodiments of the present invention, with reference to Figure 9 and Figure 10The flow area of ​​the air outlet 23 of the synthetic jet injector 2 can be smaller than the flow area of ​​the air channel 24 of the synthetic jet injector 2. During the process of air entering the air channel 24 from the air inlet 22 and being ejected through the air outlet 23, the air outlet 23 is formed into a constricted structure. This can utilize the Venturi effect to make the airflow flowing into the air channel 24 and the airflow ejected from the nozzle 265 of the jet injector body 26 mix and then be ejected through the air inlet 22. This can further increase the airflow rate by drawing more air into the air channel 24 and flowing to the air outlet 23, thereby increasing the airflow rate and improving the airflow rate and velocity of the single synthetic jet injector 2. This can improve the air volume and air velocity of the air supply unit 30.

[0068] According to some embodiments of the present invention, with reference to Figure 9 and Figure 10 The flow area of ​​air outlet 23 can be no larger than the flow area of ​​nozzle 265. For example, the flow area of ​​air outlet 23 can be the same as that of nozzle 265, or it can be slightly smaller than that of nozzle 265. In this way, when the airflow drawn into the air passage 24 from air inlet 22 mixes with the airflow ejected from nozzle 265 and is then ejected from air outlet 23, the smaller flow area of ​​air outlet 23 can increase the velocity of the airflow ejected from air outlet 23, which is beneficial to increasing the air supply velocity of air supply unit 30.

[0069] According to some embodiments of the present invention, with reference to Figure 9 and Figure 10 The flow area of ​​the air outlet 23 of the synthetic jet injector 2 can be smaller than the flow area of ​​the air passage 24 of the synthetic jet injector 2, and the flow area of ​​the air outlet 23 can be no larger than the flow area of ​​the nozzle 265. This increases the airflow rate and velocity of a single synthetic jet injector 2, thereby increasing the air volume and velocity of the air supply unit 30.

[0070] According to some embodiments of the present invention, with reference to Figure 9 and Figure 10 The nozzle 265 can be positioned opposite the air outlet 23, allowing the airflow ejected from the nozzle 265 to flow directly to the air outlet 23, reducing the resistance to the airflow from the nozzle 265 flowing to the air outlet 23. Optionally, the central axis of the air outlet 23 can coincide with the central axis of the nozzle 265. This allows for better utilization of Bernoulli's principle, drawing more airflow through the air inlet 22 into the air channel 24, further increasing the airflow and thus further increasing the air volume.

[0071] According to some embodiments of the present invention, with reference toFigure 10 The air passage 24 may include a first air passage 241 and a second air passage 242. The inner peripheral surface of the housing 21 is spaced apart from the outer peripheral surface of the ejector body 26, and the first air passage 241 is defined between the inner peripheral surface of the housing 21 and the outer peripheral surface of the ejector body 26. The cross-section of the first air passage 241 may be annular, for example, the cross-section of the first air passage 241 may be polygonal (e.g., quadrilateral) or circular. The second air passage 242 is located downstream of the first air passage 241, and the cross-section of the second air passage 242 may be polygonal (e.g., rectangular or square) or circular. The second air passage 242 connects the first air passage 241 and the air outlet 23, and the second air passage 242 also connects the injection port 265 and the air outlet 23.

[0072] When airflow is ejected from the nozzle 265 of the ejector body 26 toward the air inlet 22, external air is drawn into the air passage 24 from the air inlet 22. The airflow drawn into the air passage 24 can first flow through the first air passage 241, and then through the second air passage 242. When the airflow flows through the portion of the second air passage 242 located between the nozzle 265 and the air outlet 23, the airflow in the air passage 24 mixes with the airflow ejected from the nozzle 265 of the ejector body 26. After mixing, the mixture flows toward the air outlet 23 and is ejected from the air outlet 23, thereby achieving air delivery. By configuring the air passage 24 to include the first air passage 241 and the second air passage 242 described above, the structure of the air passage 24 is simple, and it facilitates the flow and mixing of airflow.

[0073] According to some embodiments of the present invention, with reference to Figure 10 When the ejector body 26 is a piezoelectric ejector, the ejector body 26 may include an ejector shell 261 and a piezoelectric element 263. At least a portion of the ejector shell 261 is a vibrating diaphragm 262; for example, a portion of the ejector shell 261 may be a vibrating diaphragm 262, or the entire ejector shell 261 may be a vibrating diaphragm 262. A compression chamber 264 is defined within the ejector shell, which communicates with the injection port 265. The piezoelectric element 263 is disposed on the vibrating diaphragm 262. When the ejector body 26 is powered, the piezoelectric element 263 deforms under the action of the applied electric field, thereby causing the vibrating diaphragm 262 to deform and vibrate. This can change the volume of the compression chamber 264, for example, compressing the compression chamber 264, thereby compressing the airflow within the compression chamber 264 and ejecting it from the injection port 265. The vibrating diaphragm 262 can be a metal foil, such as aluminum foil, copper foil, or other metal foils.

[0074] Optionally, the piezoelectric element 263 can be located outside the compression chamber 264. By placing the piezoelectric element 263 outside the compression chamber 264, it is convenient to connect the piezoelectric element 263 and at the same time reduce the impact on the airflow inside the compression chamber 264.

[0075] According to some embodiments of the present invention, with reference to Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figures 12-15 The air multiplier 4 has a flow surface 43 for guiding airflow. The flow surface 43 includes a first flow surface 431, a guide surface 433, and a second flow surface 432. The first flow surface 431 forms part of the wall of the air outlet duct 42. The second flow surface 432 is connected to the downstream side of the first flow surface 431 and located on the outside of the air outlet duct 42. The second flow surface 432 can form part of the outer surface of the air multiplier 4. The guide surface 433 connects the first flow surface 431 and the second flow surface 432. The side of the flow surface 43 that supplies airflow is the flow side 45. The guide surface 433 is formed as a curved surface that bends and convexes toward the flow side 45. The guide surface 433 can be formed as an arc-shaped surface. The guide surface 433 can be smoothly connected to the first flow surface 431 and the second flow surface 432.

[0076] By configuring the flow surface 43 to include the first flow surface 431, the second flow surface 432, and the guide surface 433 protruding toward the flow side 45, since a portion of the flow surface 43 (including the guide surface 433) protrudes toward the flow side 45, the airflow flowing along the outlet duct 42 will flow along the first flow surface 431 when it flows inside the outlet duct 42. When the airflow flows out of the outlet duct 42 or before it flows out of the outlet duct 42, the airflow will flow along the guide surface 433 and flow toward the second flow surface 432 under the guidance of the guide surface 433. The airflow will continue to flow along the second flow surface 432. Furthermore, due to the Bernoulli effect, a negative pressure will be generated around the high-speed airflow along the second flow surface 432, which will drive the surrounding gas flow, thereby achieving air multiplication and increasing the air volume of the air supply unit 30, which can meet the air volume requirements. Furthermore, given a fixed air volume requirement, the number of synthetic jet injectors 2 can be reduced more effectively, thereby further reducing the volume of the air supply device 20. When the air supply device 20 is used in air conditioning equipment, the volume of the air conditioning equipment can be further reduced.

[0077] Optionally, a portion of the guide surface 433 can serve as the inner wall surface of the air outlet duct 42, while another portion of the guide surface 433 is located outside the air outlet duct 42 and can constitute a portion of the outer surface of the air multiplier 4. An angle may be formed between the first flow surface 431 and the second flow surface 432, and at least a portion of the guide surface 433 may be located at the angle between the first flow surface 431 and the second flow surface 432.

[0078] According to some embodiments of the present invention, with reference to Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figures 12-15 The air multiplier 4 may have an air cavity 41. An air outlet duct 42 is formed on the wall of the air multiplier 4. The air outlet duct 42 can penetrate the wall of the air multiplier 4. The air inlet 421 of the air outlet duct 42 penetrates the inner wall of the air cavity 41 and communicates with the air cavity 41. The air outlet 422 of the air outlet duct 42 penetrates the outer surface of the air multiplier 4. The air cavity 41 can connect the air outlet 23 of the synthesizing jet 2 with the air outlet duct 42. The air outlet 23 of each synthesizing jet 2 can be connected to the air outlet duct 42 through the air cavity 41.

[0079] When the synthetic jet module 40 is working, the airflow ejected from the air outlet 23 of each synthetic jet 2 of the synthetic jet module 40 can flow into the air cavity 41 inside the air multiplier 4. The airflow ejected from the air outlet 23 of each synthetic jet 2 of the synthetic jet module 40 can converge in the air cavity 41 of the air multiplier 4, thereby causing a large amount of airflow to converge in the air cavity 41 of the air multiplier 4. The large amount of airflow is then ejected at high speed from the air outlet 42 of the air multiplier 4, thereby further increasing the airflow velocity ejected from the air outlet 422 of the air outlet 42, driving more surrounding gas to flow, and thus further increasing the air volume and airflow velocity.

[0080] According to some optional embodiments of the present invention, refer to Figures 1-8The synthetic jet module 40 can be configured as an elongated shape formed by arranging multiple synthetic jet injectors 2, extending along a direction perpendicular to or inclined to the central axis of the air outlet 23. The extension direction of the synthetic jet module 40 can be perpendicular to the central axis of the air outlet 23 of the synthetic jet injector 2, or it can form an acute or obtuse angle with the central axis of the air outlet 23 of the synthetic jet injector 2. Here, "inclined to the central axis of the air outlet 23" means that the extension direction of the synthetic jet module 40 forms an acute or obtuse angle with the central axis of the air outlet 23 of the synthetic jet injector 2. The synthetic jet module 40 can be an elongated shape extending horizontally or vertically. The multiple jet injectors 2 of the jet injector module 40 can be arranged sequentially along the extension direction of the jet injector module 40, or they can be arranged in multiple rows and columns. The number of jet injectors 2 arranged along the length direction of the jet injector module 40 is significantly greater than the number of jet injectors 2 arranged along the width direction of the jet injector module 40. The air multiplier 4 can also be elongated and its extension direction is consistent with that of the jet injector module 40. The extension length of the air multiplier 4 can be approximately the same as that of the jet injector module 40. For example, the two ends of the extension length of the air multiplier 4 can be approximately aligned with the two ends of the extension direction of the jet injector module 40, thereby making the individual air supply unit 30 elongated as a whole.

[0081] Furthermore, the air outlet duct 42 formed on the air multiplier 4 can extend in the direction of extension of the air multiplier 4 into a long slit shape. In this way, when the airflow ejected from the synthetic jet module 40 passes through the air outlet duct 42 of the air multiplier 4, it can be discharged along the length of the air supply unit 30, thereby increasing the air outlet range.

[0082] Optionally, the air multiplier 4 may have one air outlet duct 42 or multiple air outlet ducts 42. For example, the air multiplier 4 may have two air outlet ducts 42, which may be located on opposite sides of the air multiplier 4.

[0083] According to some optional embodiments of the present invention, refer to Figures 1-8 as well as Figure 12 , Figure 14The air supply device 20 may further include an air manifold 3, which can be disposed between the synthetic jet module 40 and the air multiplier 4. The air manifold 3 has a confluence cavity 31, which can connect the air outlet 23 and the air cavity 41. When the synthetic jet module 40 is working, the airflow ejected from the air outlet 23 of each synthetic jet module 40 can flow into the confluence cavity 31 of the air manifold 3. In this way, the airflow ejected from the air outlet 23 of each synthetic jet module 40 can be pre-converged in the confluence cavity 31 of the air manifold 3, so that a large amount of airflow is gathered in the confluence cavity 31, which also has a certain regulating effect on the airflow, reducing turbulence and noise. The airflow gathered in the confluence chamber 31 then flows into the air chamber 41 of the air multiplier 4. As a result, the amount of airflow flowing into the air chamber 41 is not only large but also relatively stable with less turbulence. The large amount of airflow flowing into the air chamber 41 is then ejected at high speed from the air outlet 42 of the air multiplier 4, which can further increase the airflow velocity ejected from the air outlet 422 of the air outlet 42, driving more surrounding gas to flow, thereby further increasing the air volume and air velocity.

[0084] In some alternative embodiments of the present invention, reference is made to... Figures 1-8 as well as Figure 12 , Figure 14 The air manifold 3 can be connected to the synthetic jet module 40, for example, it can be directly connected to the synthetic jet module 40. This shortens the distance between the air outlet 23 of each synthetic jet 2 in the synthetic jet module 40 and the confluence cavity 31 of the air manifold 3, reducing the airflow path and thus reducing airflow loss and improving air output efficiency. Furthermore, by connecting the air manifold 3 to the synthetic jet module 40, the air supply unit 30 can be made more compact, reducing its space requirement. Further, at least a portion of the air outlet 23 of each synthetic jet 2 in the synthetic jet module 40 can be located within the confluence cavity 31 of the air manifold 3. This further shortens the airflow path from the air outlet 23 of the synthetic jet 2 to the confluence cavity 31, further reducing flow loss. This further makes the air supply unit 30 more compact, further reducing its space requirement.

[0085] Optionally, the air manifold 3 can be detachably connected to the synthetic jet module 40, thereby facilitating the disassembly, assembly, and maintenance of the air manifold 3 and the synthetic jet module 40.

[0086] In some alternative embodiments of the present invention, reference is made to... Figures 1-8 as well as Figure 12 , Figure 14The air manifold 3 can be connected to the air multiplier 4, for example, directly. This shortens the distance between the manifold cavity 31 of the air manifold 3 and the air cavity 41 of the air multiplier 4, reducing the airflow path and thus reducing airflow loss and improving air output efficiency. Furthermore, connecting the air manifold 3 to the air multiplier 4 makes the air supply unit 30 more compact and reduces its space requirement. Further, the airflow outlet 33 of the manifold cavity 31 is opposite to and connected to the airflow inlet 44 of the air cavity 41. The airflow in the manifold cavity 31 flows into the air cavity 41 through the airflow outlet 33 and the airflow inlet 44, further shortening the airflow path from the manifold cavity 31 to the air cavity 41 and further reducing flow loss. This further makes the air supply unit 30 more compact and reduces its space requirement.

[0087] Optionally, the air manifold 3 can be detachably connected to the air multiplier 4, thereby facilitating the installation, removal, and maintenance of the air manifold 3 and the air multiplier 4.

[0088] In some alternative embodiments of the present invention, reference is made to... Figures 1-8 as well as Figure 12 , Figure 14 The air manifold 3 can be connected to the synthetic jet module 40, and the air multiplier 4 can be connected to the air manifold 3. For example, the air manifold 3 can be directly connected to the synthetic jet module 40, and the air manifold 3 can be directly connected to the air multiplier 4, thereby making the individual air supply unit 30 a whole, making the structure of the air supply unit 30 more compact and reducing the volume of the individual air supply unit 30. Furthermore, the distance between the air outlet 23 of each synthetic jet 2 in the synthetic jet module 40 and the confluence chamber 31 of the air manifold 3 can be shortened, and the distance between the confluence chamber 31 of the air manifold 3 and the air chamber 41 of the air multiplier 4 can also be shortened. During the flow of the airflow from the air outlet 23 of each synthetic jet 2 in the synthetic jet module 40 to the air outlet duct 42 of the air multiplier 4, the entire flow path can be shorter, effectively reducing flow losses and thus resulting in higher airflow efficiency.

[0089] Optionally, the air manifold 3 can be detachably connected to the synthetic jet module 40, and the air manifold 3 can be detachably connected to the air multiplier 4, thereby facilitating the disassembly, assembly, and maintenance of the individual air supply unit 30.

[0090] The following reference Figures 1-15 An air supply unit 30 according to various embodiments of the present invention is described.

[0091] Example 1,

[0092] ReferenceFigures 1-13 In this embodiment, the air supply unit 30 includes a synthetic jet module 40, an air manifold 3, and an air multiplier 4. The air manifold 3 is disposed between the synthetic jet module 40 and the air multiplier 4. The synthetic jet module 40, the air manifold 3, and the air multiplier 4 are arranged sequentially from back to front. The air manifold 3 is directly connected to the synthetic jet module 40 and the air manifold 3 is directly connected to the air multiplier 4, thereby making the air supply unit 30 a whole. The air supply unit 30 extends in a long strip shape in the left and right direction.

[0093] The synthetic jet module 40 includes multiple synthetic jet injectors 2, which are arranged in multiple rows and columns in both the left-right and up-down directions, causing the synthetic jet module 40 to extend in a long strip shape in the left-right direction. For example, the multiple synthetic jet injectors 2 are arranged in two rows and fourteen columns, that is, the synthetic jet module 40 has two rows in the up-down direction and fourteen columns in the left-right direction. Adjacent synthetic jet injectors 2 are connected, and the air outlets 23 of all synthetic jet injectors 2 in the synthetic jet module 40 face forward. The air concentrator 3 and the air multiplier 4 are both long strips extending in the left-right direction, and the lengths of the synthetic jet module 40, the air concentrator 3, and the air multiplier 4 in the left-right direction are approximately the same.

[0094] Each synthetic jet injector 2 includes a housing 21 and an injector body 26. An air inlet 22 is formed on the rear side of the housing 21, and an air outlet 23 is formed on the front side of the housing 21. The injector body 26 is disposed inside the housing 21, and an air passage 24 is defined between the injector body 26 and the housing 21, which connects the air inlet 22 and the air outlet 23. The injector body 26 can be a piezoelectric injector, which includes an injector shell 261 and a piezoelectric element 263. At least a portion of the peripheral wall of the injector shell 261 can be configured as a vibrating diaphragm 262. A compression chamber 264 is defined inside the injector shell, which communicates with the injection port 265. The piezoelectric element 263 is disposed on the vibrating diaphragm 262 and located outside the compression chamber 264. For example, the two opposite sidewalls of the ejector housing 261 can be configured as vibrating diaphragms 262, and there can be two piezoelectric elements 263. The two piezoelectric elements 263 are respectively disposed on the two vibrating diaphragms 262. When each piezoelectric element 263 deforms, it is suitable for driving the corresponding vibrating diaphragm 262 to deform and vibrate, thereby changing the volume of the compression chamber 264. For example, the volume of the compression chamber 264 can be reduced by compression, so as to realize the ejection of airflow from the injection port 265.

[0095] The air passage 24 includes a first air passage 241 and a second air passage 242. The inner circumferential surface of the outer shell 21 is spaced apart from the outer circumferential surface of the jet body 26, and the first air passage 241 is defined between the inner circumferential surface of the outer shell 21 and the outer circumferential surface of the jet body 26. The cross-section of the first air passage 241 can be annular. The second air passage 242 is located downstream of the first air passage 241. The cross-section of the second air passage 242 can be polygonal. The second air passage 242 connects the first air passage 241 and the air outlet 23. The second air passage 242 also connects the injection port 265 and the air outlet 23.

[0096] Each synthetic jet injector 2 also includes a connecting bracket 25, which is used to connect and fix the jet injector body 26 within the housing 21. The connecting bracket 25 may be annular and surround the outer periphery of the jet injector body 26. The connecting bracket 25 may be connected to the front end of the jet injector housing 261, and the connecting bracket 25 is located at one end of the first air channel 241 adjacent to the second air channel 242. The inner peripheral wall of the connecting bracket 25 is connected to the jet injector housing 261, and the outer peripheral wall of the connecting bracket 25 is connected to the housing 21. A connecting hole 251 is also formed on the connecting bracket 25. The connecting hole 251 may be annular and extend circumferentially along the connecting bracket 25. The connecting hole 251 connects the first air channel 241 and the second air channel 242. The injection port 265 of the jet injector body 26 is disposed opposite to the air outlet 23. The flow area of ​​the air outlet 23 is smaller than the flow area of ​​the air channel 24, and the flow area of ​​the air outlet 23 is approximately the same as the flow area of ​​the injection port 265.

[0097] Air manifold 3 is directly connected to synthetic jet module 40, and air multiplier 4 is directly connected to air manifold 3. Air manifold 3 has a manifold cavity 31, which is open on the side facing synthetic jet module 40 (e.g., the rear side of manifold 31) to form an opening 32. Synthetic jet module 40 covers the opening 32, and the air outlet 23 of each synthetic jet 2 in synthetic jet module 40 is located in the manifold cavity 31 of air manifold 3. An airflow outlet 33 communicating with manifold 31 is formed on the side facing air multiplier 4 (e.g., the front side of manifold 31). Air multiplier 4 may have an air cavity 41, and an airflow inlet 44 communicating with air cavity 41 is formed on the side facing air manifold 3 (e.g., the rear side of air cavity 41). Airflow inlet 44 and airflow outlet 33 are opposite to and communicate with each other in the front-rear direction.

[0098] An air outlet duct 42 is formed on the upper sidewall of the air multiplier 4, penetrating the wall of the air multiplier 4. The air inlet 421 of the air outlet duct 42 penetrates the inner wall of the air cavity 41 and communicates with the air cavity 41. The air outlet 422 of the air outlet duct 42 penetrates the outer surface of the air multiplier 4. The air outlet duct 42 formed on the air multiplier 4 can extend along the extension direction of the air multiplier 4 in the form of a long, narrow slit. The air multiplier 4 has a flow surface 43 for guiding airflow. The flow surface 43 includes a first flow surface 431, a guide surface 433, and a second flow surface 432. The first flow surface 431 forms part of the wall surface of the air outlet duct 42. The second flow surface 432 is connected to the downstream side of the first flow surface 431 and is located on the outer side of the air outlet duct 42. The second flow surface 432 can form part of the outer surface of the air multiplier 4, for example, the second flow surface 432 is located in front of the air outlet 422 of the air outlet duct. The guide surface 433 is connected between the first flow surface 431 and the second flow surface 432. The side of the flow surface 43 that supplies air flow is the flow side 45. The guide surface 433 is formed as a curved surface that bends and protrudes toward the flow side 45.

[0099] The air supply unit 30 in this embodiment has a compact structure, low airflow loss, high air output efficiency, large air volume and high air velocity.

[0100] Example 2,

[0101] Reference Figures 14-15 The difference between the structure of the air supply unit 30 in this embodiment and the structure of the air supply unit 30 in Embodiment 1 is that an air outlet duct 42 is formed on the upper side wall and the lower side wall of the air multiplier 4, and flow surfaces 43 are correspondingly provided on both the upper and lower air outlet ducts 42. Other structures of the air supply unit 30 in this embodiment are the same as the corresponding parts of the air supply unit 30 in Embodiment 1, and will not be described again here.

[0102] An air conditioning device according to a second aspect of the present invention includes: an air supply device 20 according to the first aspect of the present invention described above.

[0103] According to the air conditioning equipment of the present invention, by setting the above-mentioned air supply device 20, the air volume requirement can be met while achieving fanless air supply, fundamentally solving the problem of high noise and achieving low-noise air supply; moreover, there are no rotating parts and no friction loss, thus improving reliability.

[0104] According to some embodiments of the present invention, with reference to Figures 1-3The air conditioning equipment includes a housing 10, an air supply device 20, and an electrical control component 80. The air supply device 20 is located inside the housing 10, and the electrical control component 80 is located inside the housing 10. The electrical control component 80 can be located above the air supply unit 30 and can be mounted and fixed to the housing 10. The electrical control component 80 is electrically connected to the composite jet module 40 of the air supply device 20 to control the opening and closing of the composite jet module 40, and can also control the composite jet module 40 to distribute air in different zones. An air inlet 14 and an air outlet 15 are formed on the housing 10. The air inlet 14 can be formed at the rear end of the housing 10, and the air outlet 15 can be formed at the front side of the housing 10. The air supply device 20 includes two air supply units 30, which are arranged at intervals in the vertical direction. Each air supply unit 30 extends in the horizontal direction. The air conditioning equipment may also include a fixed bracket 50, on which the two air supply units 30 are mounted and fixed. The fixed bracket 50 is connected to the housing 10.

[0105] Optionally, the air inlet 14 can be formed on the top wall of the housing 10, or on the left and right side walls of the housing 10. Alternatively, the air inlet 14 can be formed on the top wall and the left and right side walls of the housing 10, or on the top wall, left and right side walls and bottom wall of the housing 10, thereby achieving air intake from multiple directions and increasing the air intake volume.

[0106] Optionally, there can be two air outlets 15 arranged vertically, with two air supply units 30 corresponding to two air outlets 15 respectively. Each air supply unit 30 can discharge air through the corresponding air outlet 15, and the air outlets 15 can extend in the left and right directions.

[0107] Optionally, the housing 10 may include a rear housing 11, a top panel 12, and a front frame 13. The front frame 13 is connected to the front side of the rear housing 11, and the top panel 12 covers the top of the rear housing 11 and the front frame 13. The electronic control component 80 is connected and fixed to the top panel 12, and the aforementioned fixing bracket 50 can be connected to the front frame 13. The aforementioned air inlet 14 is formed on the rear housing 11 and the top panel 12, and the air outlet 15 is formed on the front frame 13.

[0108] Alternatively, the two air supply units 30 can be controlled independently.

[0109] When the air conditioning equipment is working, the electronic control unit 80 can control at least one of the two air supply units 30 to be turned on. Each synthetic jet 2 in the synthetic jet module 40 of the turned-on air supply unit 30 is working. The nozzle 265 of the jet body 26 of each synthetic jet 2 sprays airflow toward the air outlet 23, thereby driving the airflow from the air inlet 14 into the housing 10. The airflow entering the housing 10 can enter the air passage 24 of each synthetic jet 2 from the air inlet 22 of each synthetic jet module 40 of the air supply unit 30. The airflow entering the air passage 24 mixes with the airflow sprayed from the nozzle 265 and flows out from the air outlet 23. After being accelerated by the air outlet duct 42 of the air multiplier 4, it is sprayed out, thereby driving more surrounding airflow toward the air outlet 15 and out of the air outlet 15.

[0110] Optionally, the air conditioning equipment can be an air conditioner. In this case, the air conditioning equipment may include a heat exchanger 60, which is installed inside the casing 10. A water collection tray 70 can be installed on the bottom surface of the heat exchanger 60 to collect condensate. The heat exchanger 60 can be installed near the air inlet 14 and located behind the air supply device 20. When the air conditioning equipment is working, the airflow entering the casing 10 from the air inlet 14 can exchange heat with the heat exchanger 60, and then be accelerated and pressurized by the air supply device 20 before being blown out of the air outlet 15 into the room, thereby regulating the indoor temperature.

[0111] Optionally, when the air conditioning equipment is an air conditioner, the air conditioner can be a split-type air conditioner, such as a split wall-mounted air conditioner. The air conditioner includes an indoor unit 100 and an outdoor unit, wherein the indoor unit 100 includes the aforementioned casing 10, air supply device 20, heat exchanger 60, water drip tray 70, and electrical control components 80.

[0112] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0113] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air supply device, characterized in that, Includes at least one air supply unit, the air supply unit comprising: A synthetic jet module includes at least one synthetic jet injector. The synthetic jet injector includes a housing and an injector body. The housing has an air inlet and an air outlet. The injector body is disposed inside the housing and defines an air passage between the housing and the housing. The air passage connects the air inlet and the air outlet. The nozzle of the injector body is connected to the air outlet and is adapted to inject airflow into the air outlet. An air multiplier is located downstream of the synthetic jet module. The air multiplier has at least one slit-shaped air outlet duct, and the air outlet of each synthetic jet is connected to the air outlet duct.

2. The air supply device according to claim 1, characterized in that, The flow area of ​​the air outlet is smaller than the flow area of ​​the air channel; and / or, the flow area of ​​the air outlet is not greater than the flow area of ​​the nozzle.

3. The air supply device according to claim 1, characterized in that, The injection port is opposite to the air outlet, and the central axis of the air outlet coincides with the central axis of the injection port.

4. The air supply device according to claim 1, characterized in that, The air passage includes: The first air passage is defined by the inner peripheral surface of the outer shell and the outer peripheral surface of the jet body being spaced apart. A second air passage is located downstream of the first air passage, and the second air passage connects the injection port and the air outlet.

5. The air supply device according to claim 1, characterized in that, The jet ejector body includes an ejector shell and a piezoelectric element. At least a portion of the ejector shell is a vibrating diaphragm. A compression chamber communicating with the jet nozzle is defined within the ejector shell. The piezoelectric element is disposed on the vibrating diaphragm and located outside the compression chamber.

6. The air supply device according to claim 1, characterized in that, The air multiplier has a flow surface for guiding airflow. The flow surface includes a first flow surface, a guide surface, and a second flow surface. The first flow surface forms part of the wall of the air outlet duct. The second flow surface is connected to the downstream side of the first flow surface and is located on the outside of the air outlet duct. The guide surface is connected between the first flow surface and the second flow surface. The side of the flow surface that supplies airflow is the flow side. The guide surface is formed as a curved surface that bends and convexes toward the flow side.

7. The air supply device according to any one of claims 1-6, characterized in that, The air multiplier has an air cavity, and the air outlet duct is formed on the wall of the air multiplier. The air cavity connects the air outlet and the air outlet duct.

8. The air supply device according to claim 7, characterized in that, The synthetic jet module is configured as an elongated strip formed by arranging a plurality of synthetic jets, extending in a direction perpendicular to or inclined to the central axis of the air outlet. The air multiplier is elongated and extends in the same direction as the synthetic jet module. The air outlet duct extends in the direction of the air multiplier as an elongated slit.

9. The air supply device according to claim 7, characterized in that, Also includes: An air manifold is located between the synthetic jet module and the air multiplier, and the air manifold has a manifold cavity that connects the air outlet and the air cavity.

10. The air supply device according to claim 9, characterized in that, The air manifold is connected to the synthetic jet module, and the air outlet is located inside the manifold cavity; and / or, the air manifold is connected to the air multiplier, and the airflow outlet of the manifold cavity is opposite to and connected to the airflow inlet of the air cavity.

11. The air supply device according to claim 1, characterized in that, All the synthetic jet generators of the synthetic jet module are arranged in rows, columns, multiple rows and columns, or irregularly; and / or, there are multiple air supply units, which are arranged vertically, horizontally, or at least some of them are staggered in the front-back direction.

12. An air conditioning device, characterized in that, include: The air supply device according to any one of claims 1-11.

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