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 an air supply frame, a synthetic jet group and an air multiplier. The air supply frame has a containing cavity and an air inlet. The synthetic jet group comprises at least one synthetic jet and is arranged in the containing cavity. An air passage is defined between the synthetic jet group and the inner wall of the containing cavity and communicates with the air inlet. The air multiplier is arranged in the air supply frame and has a slit-shaped air outlet channel. The air outlet channel is located on the downstream side of the air passage and communicates with the air passage. The injection port of the synthetic jet communicates with the air outlet channel and is adapted to inject air flow into the air outlet channel. According to the air supply device of the embodiment of the application, air supply without a fan can be realized while the air volume requirement is met, the problem of high noise is fundamentally solved, and the reliability is improved without rotating parts and friction loss.

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 at least solve 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 air pressure of synthetic jet to generate original air flow, and the air flow ejected by the synthetic jet group 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: an air supply frame having a receiving cavity and an air inlet; a synthetic jet group comprising at least one synthetic jet and arranged in the receiving cavity, the synthetic jet group and the inner wall of the receiving cavity defining an air passage in communication with the air inlet; and an air multiplier arranged in the air supply frame and having a slit-shaped air outlet air duct, the air outlet air duct being located on the downstream side of the air passage and in communication with the air passage, the ejection port of the synthetic jet being in communication with the air outlet air duct and adapted to eject air flow into the air outlet air duct.

[0007] According to the air supply device, the synthetic jet group is arranged to replace the traditional fan, the synthetic jet group has the characteristics of high speed and high wind pressure, the original airflow is generated, the driving of the airflow is realized, the air supply is realized, the air multiplier is arranged, the airflow sprayed by the synthetic jet group is sprayed at high speed through the air outlet air duct of the air multiplier, the Bernoulli effect is utilized, the air multiplier is realized, the original airflow generated by the synthetic jet group drives a large amount of air to flow, the requirement of air volume is achieved, the air supply without the fan is realized, the problem of high noise is fundamentally solved, and the low-noise air supply is realized.

[0008] According to some embodiments of the present application, the air outlet of the air channel and the air inlet of the air outlet air duct share one port.

[0009] According to some embodiments of the present application, the spray port is opposite to the air inlet of the air outlet air duct, or the spray port is located in the air inlet of the air outlet air duct and the synthetic jet and the inner wall of the air outlet air duct are at least partially spaced apart.

[0010] According to some optional embodiments of the present application, the central axis of the spray port coincides with the central axis of the air outlet air duct.

[0011] According to some embodiments of the present application, the synthetic jet has a compression cavity in a flat shape, the compression cavity has the spray port, and the spray port is in a long and narrow type extending along the circumference of the air supply frame.

[0012] According to some embodiments of the present application, the synthetic jet includes a jet shell and a piezoelectric element, the jet shell defines a compression cavity therein, at least part of the jet shell is a vibrating diaphragm, the piezoelectric element is arranged on the vibrating diaphragm and located outside the compression cavity.

[0013] According to some embodiments of the present application, the air multiplier has a flow surface for guiding the airflow, the flow surface includes 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 to 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 air flow is a flow side, and the guide surface is formed as a curved surface bending and protruding towards the flow side.

[0014] According to some embodiments of the present application, the air multiplier is integrally formed with the air supply frame.

[0015] According to some embodiments of the present application, the air outlet duct and the containing cavity both extend along the circumference of the air supply frame, and a plurality of synthetic jet devices are arranged along the circumference of the air supply frame.

[0016] According to some embodiments of the present application, the synthetic jet device group is a plurality of groups and arranged along the circumference of the air supply frame, and the number of air multipliers is the same as and one-to-one corresponding to the number of synthetic jet device groups.

[0017] According to some embodiments of the present application, the air supply frame is annular, the inner circumferential side of the air supply frame has an airflow channel, the airflow channel has an airflow inlet and an airflow outlet at the axial two ends, and the air outlet of the air outlet duct communicates with the airflow channel and is adapted to supply air to the airflow channel.

[0018] According to some optional embodiments of the present application, the air supply frame comprises: an outer frame in the form of a ring; an inner frame in the form of a ring, which is arranged on the inner circumferential side of the outer frame and connected with the outer frame, and the air multiplier is arranged on the inner circumferential side of the outer frame and at least part of the air multiplier is arranged between the inner frame and the outer frame, and the air multiplier and the outer frame and the inner frame jointly define the containing cavity.

[0019] According to some optional embodiments of the present application, in the direction from the airflow inlet to the airflow outlet, the air outlet duct extends obliquely towards the direction adjacent to the central axis of the airflow channel.

[0020] According to some embodiments of the present application, the air supply units are a plurality of, and the plurality of air supply units are arranged in rows or arranged in columns or arranged in multiple rows and multiple columns or arranged irregularly.

[0021] The air conditioning device according to the second aspect of the embodiments of the present application comprises the air supply device according to the first aspect of the embodiments of the present application.

[0022] The air conditioning device according to the embodiments of the present application, by setting the above-mentioned air supply device, can achieve fanless air supply while meeting the air volume requirement, fundamentally solve the problem of high noise, and realize low-noise air supply; and there is no rotating part and no friction loss, and the reliability is improved.

[0023] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1is a perspective view of a blower unit according to some embodiments of the present application;

[0026] Figure 2 is Figure 1 is a perspective view of another angle of the blower unit in

[0027] Figure 3 is Figure 2 is a close-up view of A in

[0028] Figure 4 is Figure 1 is a front view of the blower unit in

[0029] Figure 5 is Figure 1 is a sectional view of the blower unit in

[0030] Figure 6 is Figure 5 is a close-up view of B in

[0031] Figure 7 is Figure 1 is a sectional view of another angle of the blower unit in

[0032] Figure 8 is Figure 7 is a close-up view of C in

[0033] Figure 9 is Figure 1 is a sectional view of the blower frame and air multiplier of the blower unit in

[0034] Figure 10 is Figure 1 is a perspective view of the synthetic jet of the blower unit in

[0035] Figure 11 is Figure 10 is a sectional view of the synthetic jet in

[0036] Figure 12 is a schematic view of an indoor unit of an air conditioning apparatus according to some embodiments of the present application.

[0037] Figure 13 is Figure 12 is a front view of the indoor unit in

[0038] Figure 14 is a sectional view along line E-E in Figure 13

[0039] is a sectional view along line F-F in Figure 15 Figure 13

[0040] Figure 16 ​​is a schematic view of an indoor unit of an air conditioning apparatus according to another embodiment of the present application.

[0041] Figure 17 is a front view of the indoor unit in Figure 16

[0042] Figure 18 is a sectional view along the line G-G in Figure 17

[0043] Figure 19 is a sectional view along the line H-H in Figure 17

[0044] Figure 20 is a schematic view of a blowing device of the indoor unit in Figure 16

[0045] Reference Signs:

[0046] 100, indoor unit

[0047] 10, cabinet; 11, rear cabinet; 12, face frame; 13, air inlet; 14, air outlet; 15, ventilation grating

[0048] 20, blowing device; 30, blowing unit

[0049] 40, blowing frame; 41, outer frame; 42, inner frame; 43, air flow passage; 431, first air flow passage; 432, air flow inlet; 433, second air flow passage; 434, air flow outlet; 44, accommodating cavity; 45, air passage; 451, air inlet; 452, air outlet; 46, first connecting rod; 47, second connecting rod; 48, connecting rib plate

[0050] 50, synthetic jet device group; 5, synthetic jet device; 51, synthetic jet device housing; 52, diaphragm; 53, piezoelectric element; 54, compression cavity; 55, ejection port

[0051] 60, air multiplier; 62, air outlet duct; 621, air inlet; 622, air outlet; 63, flow face; 631, first flow face; 632, second flow face; 633, guide face; 641, first member; 642, second member; 65, hollow cavity; 66, flow side

[0052] 71, heat exchanger; 72, water pan DETAILED DESCRIPTION

[0053] ​​​​Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0054] The air supply device 20 according to the embodiments of the present application is described below with reference to the accompanying drawings.

[0055] Referring to Figures 2-4 The air supply device 20 according to the first aspect of the present application comprises an air supply unit 30, which can realize air supply and play a role in adjusting indoor air.

[0056] The air supply unit 30 can be one or multiple. When the air supply unit 30 is multiple, the multiple air supply units 30 can be arranged according to the set mode as needed, so that the air supply device 20 can supply air according to the set area and set range, and the air supply amount of the air supply device 20 can be increased relative to one air supply unit 30, meeting the requirement of large air volume and improving the adjustment efficiency of indoor air.

[0057] It should be noted that the "multiple" in the present application refers to two or more.

[0058] Optionally, when the air supply device 20 comprises multiple air supply units 30, the multiple air supply units 30 can be controlled synchronously, and all the air supply units 30 of the air supply device 20 are turned on simultaneously when the air supply device 20 is turned on, so that large air volume can be realized; and all the air supply units 30 of the air supply device 20 are turned off simultaneously when the air supply device 20 is turned off.

[0059] Optionally, when the air supply device 20 comprises multiple air supply units 30, each air supply unit 30 can be independently controlled, and different numbers of air supply units 30 can be turned on according to the size requirement of the air supply range and air volume. For example, one or other smaller number of air supply units 30 can be turned on when the air supply range requirement is smaller or the air volume requirement is not high; and a larger number or all of the air supply units 30 can be turned on when the air supply range requirement is larger or the air volume requirement is higher. By independently controlling each air supply unit 30, the diversification of the air supply mode of the air supply device 20 can be realized, and more air supply requirements of users can be met.

[0060] Optionally, when the air supply units 30 are multiple, the multiple air supply units 30 can be arranged in a column. For example, when the air supply units 30 are multiple, the multiple air supply units 30 can be arranged in the up-down direction. When the multiple air supply units 30 are simultaneously turned on, large-scale air supply in the up-down direction can be realized. When each air supply unit 30 can be independently controlled, multiple area selective air supply in the up-down direction can be realized. For example, the air supply unit 30 located at the upper side can be controlled to supply air, air supply of the air supply device 20 in the higher position area can be realized, and the air supply unit 30 located at the lower side can be controlled to supply air, air supply of the air supply device 20 in the lower position area can be realized. When the air supply device 20 is used in an air conditioner, when the air conditioner is in a cooling mode, the air supply unit 30 located at the upper side can be controlled to supply air, which is beneficial to the uniformization of the overall indoor temperature by using the characteristics that cold air easily sinks; when the air conditioner is in a heating mode, the air supply unit 30 located at the lower side can be controlled to supply air, which is beneficial to the uniformization of the overall indoor temperature by using the characteristics that hot air easily rises. Optionally, when the air supply units 30 are multiple, the multiple air supply units 30 can be arranged in a row or in a column or in multiple rows and multiple columns.

[0061] Optionally, when the air supply units 30 are multiple, the multiple air supply units 30 can be arranged in a row. For example, when the air supply units 30 are multiple, the multiple air supply units 30 can be arranged in the left-right direction. When the multiple air supply units 30 are simultaneously turned on, large-scale air supply in the left-right direction can be realized, and large-angle air supply can be realized. When each air supply unit 30 can be independently controlled, multiple area selective air supply in the left-right direction can be realized. For example, the air supply unit 30 located at the left side can be controlled to supply air, left area air supply of the air supply device 20 can be realized, and the air supply unit 30 located at the right side can be controlled to supply air, right area air supply of the air supply device 20 can be realized. When the user is at different angular positions of the air supply device 20, the user can turn on the air supply units 30 of the corresponding area to supply air according to the needs; when there are multiple users in the indoor area where the air supply device 20 is located, the air supply units 30 in the left and right areas can be controlled to supply air, so that the users at different angular positions of the air supply device 20 can all feel the wind.

[0062] Optionally, when the plurality of air supply units 30 are provided, the plurality of air supply units 30 can be arranged in multiple rows and multiple columns. For example, when the plurality of air supply units 30 are provided, the plurality of air supply units 30 can be arranged in multiple rows and multiple columns in the left-right direction and the up-down direction. When all the air supply units 30 are turned on, air supply to a larger area can be achieved, and the air supply amount and the air supply range can be further improved. Moreover, when each air supply unit 30 is independently controlled, the selection of the air supply area of the air supply device 20 can be more diversified, for example, air supply to the upper area, air supply to the lower area, air supply to the left area, air supply to the right area, air supply to the upper left area, air supply to the lower left area, air supply to the upper right area, air supply to the lower right area, and the like can be achieved, so as to meet more air supply requirements of the user.

[0063] Optionally, when the plurality of air supply units 30 are provided, at least part of the plurality of air supply units 30 can be arranged in the front-rear direction. In this way, when at least part of the air supply units 30 are arranged in the front-rear direction, the air supply units 30 arranged in the front-rear direction can be arranged in the front-rear direction in a staggered manner, so as to avoid that the air supply unit 30 located in the front blocks the air supply unit 30 located in the rear, and each air supply unit 30 can smoothly air supply to the front.

[0064] Optionally, when the plurality of air supply units 30 are provided, the plurality of air supply units 30 can also be arranged in a random manner.

[0065] Optionally, when the plurality of air supply units 30 are provided, two adjacent air supply units 30 in the plurality of air supply units 30 can be detachably connected, so as to facilitate the maintenance and replacement of the air supply units 30. Of course, the air supply device 20 can also include a mounting bracket, and the plurality of air supply units 30 can be mounted on the mounting bracket. The air supply units 30 can be detachably mounted on the mounting bracket, so as to facilitate the maintenance and replacement of the air supply units 30.

[0066] The air supply unit 30 can include an air supply frame 40 and a synthetic jet group 50. The air supply frame 40 has a receiving cavity 44 and an air inlet 451 which is in communication with the receiving cavity 44. The synthetic jet group 50 is arranged in the receiving cavity 44, and the synthetic jet group 50 and the inner wall of the receiving cavity 44 define an air passage 45 which is in communication with the air inlet 451. The air passage 45 has an air outlet 452. The synthetic jet group 50 is used to generate a primary air flow. When the synthetic jet group 50 sprays the air flow, a negative pressure can be formed near the spray port 55 of the synthetic jet group 50, so as to drive external air to enter the air passage 45 from the air inlet 451 and flow out from the air outlet 452. The synthetic jet group 50 can replace the conventional fan to drive the air flow and generate the primary air flow, so as to achieve air supply.

[0067] The synthetic jet group 50 includes at least one synthetic jet 5. For example, the synthetic jet group 50 can include a plurality of synthetic jets 5. When the synthetic jet group 50 includes a plurality of synthetic jets 5, the plurality of synthetic jets 5 of the synthetic jet group 50 can be arranged in sequence along the extension direction of the accommodation cavity 44. For example, the accommodation cavity 44 can extend along the circumference of the air supply frame 40, and the plurality of synthetic jets 5 of the synthetic jet group 50 can be arranged in sequence along the circumference of the air supply frame 40.

[0068] Optionally, when the synthetic jet group 50 includes a plurality of synthetic jets 5, the adjacent two synthetic jets 5 in the synthetic jet group 50 are connected, so that the synthetic jet group 50 is formed as a whole, and the overall structure of the synthetic jet group 50 is compact, and the occupied space is reduced. For example, in the example of Figure 2 and Figure 3 , the synthetic jet group 50 includes a plurality of synthetic jets 5, a first connecting rod 46, and a second connecting rod 47. The plurality of synthetic jets 5 are arranged in sequence along the extension direction of the accommodation cavity 44. The adjacent two synthetic jets 5 are connected by the first connecting rod 46. The second connecting rod 47 is connected to the opposite sides of the arrangement direction of the synthetic jet group 50. The second connecting rod 47 is connected to the air supply frame 40, so as to integrally connect and fix the synthetic jet group 50 on the air supply frame 40.

[0069] Optionally, when the synthetic jet group 50 includes a plurality of synthetic jets 5, the adjacent two synthetic jets 5 in the synthetic jet group 50 can be detachably connected, thereby facilitating the maintenance and replacement of the individual synthetic jet 5.

[0070] Optionally, when the synthetic jet group 50 includes a plurality of synthetic jets 5, each synthetic jet 5 in the synthetic jet group 50 can also be separately mounted on the air supply frame 40. The adjacent two synthetic jets 5 have no connection relationship. For example, each synthetic jet 5 in the synthetic jet group 50 can be detachably mounted on the air supply frame 40, thereby facilitating the maintenance and replacement of the individual synthetic jet 5.

[0071] The air supply device 20 further includes an air multiplier 60. The air multiplier 60 is arranged on the air supply frame 40. The air multiplier 60 has a slit-shaped air outlet channel 62. The air outlet channel 62 is located on the downstream side of the air passage 45 (the downstream side is relative to the flow direction of the airflow), and the air outlet channel 62 is in communication with the air passage 45. The synthetic jet 5 has a jet port 55. The jet port 55 of the synthetic jet 5 can jet the airflow. The jet port 55 of the synthetic jet 5 is in communication with the air outlet channel 62, and the jet port 55 of the synthetic jet 5 is adapted to jet the airflow to the air outlet channel 62.

[0072] When the synthetic jet 5 is working, the ejection port 55 of the synthetic jet 5 can eject air flow towards the air outlet duct 62. When the ejection port 55 of the synthetic jet 5 ejects air flow towards the air outlet duct 62, according to Bernoulli principle, the ejected air flow has a large speed, and a negative pressure can be formed near the ejection port 55, so as to drive external air to be sucked into the air channel 45 from the air inlet 451 and flow to the air outlet 452. The air flow sucked into the air channel 45 flows into the air outlet duct 62 through the air outlet 452 and the air inlet 621 of the air outlet duct 62. The air flow ejected from the ejection port 55 of the synthetic jet 5 flows into the air outlet duct 62, so that the air flow ejected from the ejection port 55 of the synthetic jet 5 and the air flow sucked into the air channel 45 from the air inlet 451 all flow into the air outlet duct 62. The air flow ejected from the ejection port 55 of the synthetic jet 5 and the air flow sucked into the air channel 45 from the air inlet 451 mix in the air outlet duct 62 and are ejected from the air outlet 622 of the air outlet duct 62. By arranging the synthetic jet group 50, the air can be driven to generate original air flow, so as to realize air supply. The structure of the synthetic jet 5 utilizes Bernoulli principle to expand the ejection jet of the synthetic jet 5. The synthetic jet group 50 can replace the traditional fan to realize fanless air supply, fundamentally solve the problem of high noise, realize low-noise air supply, and has no rotating part and friction loss, so as to improve reliability.

[0073] Meanwhile, since the air multiplier 60 has the air outlet duct 62 in the form of a slit, the air flow flowing into the air outlet duct 62 can be further increased in speed when being ejected from the air outlet 622 of the air outlet duct 62. According to Bernoulli principle, a large negative pressure is generated near the high-speed air flow ejected from the air outlet duct 62, so as to drive more external air flow to flow, thereby realizing air multiplication and increasing the air volume of a single air supply unit 30, so as to meet the air volume requirement. By arranging the air multiplier 60 downstream of the synthetic jet group 50, the original air flow generated by the synthetic jet group 50 can pass through the air multiplier 60 to realize air multiplication and meet the air volume requirement. In the case of a certain air volume requirement, the number of piezoelectric jets can be reduced, so as to reduce the volume of the air supply device 20, and when the air supply device 20 is used in an air conditioning equipment, the volume of the air conditioning equipment can be reduced.

[0074] Optionally, the synthetic jet 5 can be a piezoelectric jet. According to the inverse piezoelectric effect, the volume of air in the compression cavity 54 of the synthetic jet 5 changes, so as to generate air flow ejected from the ejection port 55 of the synthetic jet 5.

[0075] Optionally, when the synthetic jet group 50 comprises a plurality of synthetic jets 5, the orientations of the ejection ports 55 of all the synthetic jets 5 of the synthetic jet group 50 can be the same, for example, the ejection ports 55 of all the synthetic jets 5 of the synthetic jet group 50 can be oriented forward, so that air supply toward the front can be achieved.

[0076] According to the air supply device 20 of the embodiment of the present application, the synthetic jet group 50 is arranged to replace the conventional fan, the original airflow is generated by using the characteristics of fast speed and large wind pressure of the synthetic jet of the synthetic jet group 50 to realize the driving of the airflow, so that air supply is achieved, and the airflow ejected by the synthetic jet group 50 is ejected at high speed through the air outlet air duct 62 of the air multiplier 60, the air multiplier 60 is arranged, the Bernoulli effect is used to realize air multiplication, a large amount of air is driven to flow by the original airflow generated by the synthetic jet, so that the requirement of air volume is met, air supply without the fan can be achieved, the problem of high noise is fundamentally solved, and low-noise air supply is achieved; and no rotating part and no friction loss, the reliability is improved.

[0077] According to some embodiments of the present application, referring to Figure 6 and Figure 8 , the flow area of the air outlet air duct 62 of the air multiplier 60 can be smaller than the flow area of the air channel 45, the air outlet air duct 62 is formed as a converging structure in the process of air entering the air channel 45 from the air inlet 451 and flowing into the air outlet air duct 62 through the air outlet 452, so that the Venturi effect can be used, more airflow can be sucked into the air channel 45 from the air inlet 451 and flow into the air outlet air duct 62, the airflow is further increased, so that the airflow volume and the airflow speed ejected by the corresponding air outlet air duct 62 of the air supply unit 30 are increased, so that the air supply volume and the air supply speed of the air supply unit 30 can be improved.

[0078] According to some embodiments of the present application, referring to Figure 6 and Figure 8 , the air outlet 452 of the air channel 45 can share one port with the air inlet 621 of the air outlet air duct 62, that is, the air outlet 452 of the air channel 45 constitutes the air inlet 621 of the air outlet air duct 62 or the air inlet 621 of the air outlet air duct 62 constitutes the air outlet 452 of the air channel 45, so that the structure is simple, the air channel 45 and the air outlet air duct 62 are conveniently connected, the flow path of the airflow flowing from the air channel 45 to the air outlet air duct 62 can be shortened, the flow loss is reduced, and the air supply volume and the air supply speed are ensured.

[0079] Optionally, referring to Figure 6 and Figure 8In the flow direction of the air flow, the flow area of the air outlet 452 can be kept unchanged, and the flow area of the air outlet 452 is smaller than the flow area of the air passage 45. In this way, during the process that the air flow sucked into the air passage 45 from the air inlet 451 is sprayed into the air outlet 452, the air flow speed sprayed from the air outlet 452 can be improved due to the smaller flow area of the air outlet 452, which is beneficial to improve the air supply speed of the air supply unit 30.

[0080] According to some embodiments of the present application, referring to Figure 6 and Figure 8 , the spray port 55 of the synthetic jet 5 can be arranged opposite to the air inlet 621 of the air outlet duct 62, so that the air flow sprayed by the spray port 55 can directly flow to the air inlet 621 of the air outlet duct 62, reducing the resistance of the air flow sprayed by the spray port 55 to flow to the air outlet duct 62, and the distance of the air flow from the spray port 55 of the synthetic jet 5 to the air outlet duct 62 can be shortened, reducing the flow loss. Optionally, the central axis of the spray port 55 coincides with the central axis of the air outlet duct 62, so that the Bernoulli principle can be better utilized to drive more air flow to be sucked into the air passage 45 through the air inlet 451, further improving the air flow amount, thereby further improving the air supply amount.

[0081] According to some embodiments of the present application, referring to Figure 6 and Figure 8 , the spray port 55 of the synthetic jet 5 is located in the air inlet 621 of the air outlet duct 62 and the synthetic jet 5 is at least partially spaced apart from the inner wall of the air outlet duct 62, so that a flow gap can be defined between the inner wall of the air outlet duct 62 and the outer peripheral wall of the synthetic jet 5. During the process that the spray port 55 of the synthetic jet 5 sprays air flow into the air outlet duct 62, negative pressure is generated near the spray port 55 of the air outlet duct 62, thereby driving external air to enter the air passage 45 through the air inlet 451, the air flow flowing into the air passage 45 flows into the air outlet duct 62 through the air outlet 452 and the air inlet 621 of the air outlet duct 62, and the air flow entering from the air inlet 621 of the air outlet duct 62 first flows along the flow gap defined between the inner wall of the air outlet duct 62 and the outer peripheral wall of the synthetic jet 5, and then flows along the air outlet duct 62 after passing the position of the spray port 55. By locating the spray port 55 of the synthetic jet 5 in the air inlet 621 of the air outlet duct 62, the air flow sprayed by the spray port 55 of the synthetic jet 5 can be directly sprayed into the air outlet duct 62, further reducing the flow path and flow loss, and making the structure more compact.

[0082] In addition, since the injection port 55 of the synthetic jet device 5 is located in the air inlet 621 of the air outlet air duct 62 and the synthetic jet device 5 is at least partially spaced apart from the inner wall of the air outlet air duct 62, the flow passage area of the flow gap defined between the outer peripheral wall of the synthetic jet device 5 and the inner peripheral wall of the air outlet air duct 62 is further reduced, and the air flow passing through the flow gap can better utilize the Venturi effect to induce a larger air flow. Optionally, the central axis of the injection port 55 coincides with the central axis of the air outlet air duct 62, which can better utilize the Bernoulli principle to induce more air flow into the air passage 45 through the air inlet 451, further increasing the air flow, thereby further increasing the air supply.

[0083] wherein the flow passage area of the injection port 55 of the synthetic jet device 5 can be smaller than the flow passage area of the air outlet air duct 62, thereby facilitating the positioning of the injection port 55 of the synthetic jet device 5 in the air outlet air duct 62, and the smaller flow passage area of the injection port 55 of the synthetic jet device 5 can result in a larger flow rate of the air flow ejected from the injection port 55 of the synthetic jet device 5, thereby inducing a larger air flow.

[0084] According to some embodiments of the present application, with reference to Figures 5-11 The synthetic jet device 5 can have a compressed cavity 54 in a flat shape, for example, the synthetic jet device 5 can be flat as a whole, so that the synthetic jet device 5 has a compact structure, occupies a small space, and is convenient to accommodate in the accommodating cavity 44 of the air supply frame 40. The compressed cavity 54 is in communication with the injection port 55, and the injection port 55 is in a long and narrow shape extending along the circumference of the air supply frame 40. By setting the compressed cavity 54 in a flat shape and the injection port 55 in a long and narrow shape, the ejection air flow speed of the synthetic jet device 5 can be improved, and at the same time, the injection port 55 is in a long and narrow shape extending along the circumference of the air supply frame 40, which can increase the ejection range of the injection port 55 in the circumferential direction of the air supply frame 40, and is beneficial to improve the air supply amount and the air supply range.

[0085] According to some embodiments of the present application, with reference to Figures 5-11When the synthetic fluidic device 5 is a piezoelectric fluidic device, the synthetic fluidic device 5 can include a fluidic device shell 51 and a piezoelectric element 53, at least a part of the fluidic device shell 51 being a vibrating diaphragm 52, for example, a part of the fluidic device shell 51 can be the vibrating diaphragm 52, or the entire fluidic device shell 51 can be the vibrating diaphragm 52. A compression cavity 54 is defined in the fluidic device shell, the compression cavity 54 is in communication with a jet port 55, and the piezoelectric element 53 is arranged on the vibrating diaphragm 52. When the synthetic fluidic device 5 is powered, the piezoelectric element 53 deforms under the action of an applied electric field, thereby driving the vibrating diaphragm 52 to deform and vibrate, so that the volume of the compression cavity 54 changes, for example, the compression cavity 54 is compressed, so that the airflow in the compression cavity 54 is compressed and ejected from the jet port 55. The vibrating diaphragm 52 can be a metal foil, for example, the vibrating diaphragm 52 can be an aluminum foil, a copper foil or the like.

[0086] Optionally, the piezoelectric element 53 can be located outside the compression cavity 54. By arranging the piezoelectric element 53 outside the compression cavity 54, the wiring of the piezoelectric element 53 is facilitated, and the influence on the airflow in the compression cavity 54 is also reduced.

[0087] According to some embodiments of the present application, with reference to Figure 6 and Figure 8 The air multiplier 60 has a flow face 63 for guiding the flow of the airflow, the flow face 63 includes a first flow face 631, a flow guide face 633 and a second flow face 632, the first flow face 631 constitutes part of the wall surface of the air outlet duct 62, the second flow face 632 is connected to the downstream side of the first flow face 631 and located outside the air outlet duct 62, the second flow face 632 can constitute part of the outer surface of the air multiplier 60, and the flow guide face 633 is connected between the first flow face 631 and the second flow face 632. The side of the flow face 63 for the airflow is the flow side 66, the flow guide face 633 is formed as a curved surface that curves and protrudes towards the flow side 66, the flow guide face 633 can be formed as an arc-shaped surface, the flow guide face 633 can be smoothly connected with the first flow face 631, and the flow guide face 633 can also be smoothly connected with the second flow face 632.

[0088] By setting the flow surface 63 to include the first flow surface 631, the second flow surface 632 and the guide surface 633 which is convex towards the flow side 66, due to the convexity of the part of the flow surface 63 (including the guide surface 633) towards the flow side 66, the air flow flowing along the air outlet duct 62 will flow along the first flow surface 631 when flowing in the air outlet duct 62, and will flow along the guide surface 633 and be guided by the guide surface 633 to the second flow surface 632 before flowing out of the air outlet duct 62 or before the air flow flows out of the air outlet duct 62, and the air flow will continue to flow along the second flow surface 632; and due to the Bernoulli effect, a negative pressure will be generated around the air flow flowing along the second flow surface 632 at a high speed, so as to drive the surrounding air to flow, thereby achieving air multiplication and increasing the air outlet amount of the air supply unit 30, so as to meet the air volume requirement. And in the case of a certain air volume requirement, the number of piezoelectric jetting devices can be reduced better, so as to further reduce the volume of the air supply device 20, and when the air supply device 20 is used in an air conditioning equipment, the volume of the air conditioning equipment can be further reduced.

[0089] Optionally, part of the guide surface 633 can serve as the inner wall surface of the air outlet duct 62, and another part of the guide surface 633 is located outside the air outlet duct 62 and can constitute part of the outer surface of the air multiplier 60. The first flow surface 631 and the second flow surface 632 can have an included angle therebetween, and at least part of the guide surface 633 can be located at the included angle between the first flow surface 631 and the second flow surface 632.

[0090] According to some embodiments of the present application, with reference to Figures 1-9 The air outlet duct 62 extends along the circumference of the air supply frame 40, the containing cavity 44 extends along the circumference of the air supply frame 40, and the extension length of the air outlet duct 62 and the containing cavity 44 in the circumferential direction of the air supply frame 40 can be the same, and the plurality of synthetic jetting devices 5 in the synthetic jetting device group 50 can be arranged in sequence along the circumference of the air supply frame 40. By setting the containing cavity 44 to extend along the circumference of the air supply frame 40 and arranging the plurality of synthetic jetting devices 5 in the synthetic jetting device group 50 in sequence along the circumference of the air supply frame 40, the space in the air supply frame 40 can be fully utilized, a larger number of synthetic jetting devices 5 can be arranged, and more air flow can be injected, so as to increase the air outlet amount and make the structure of the air supply unit compact.

[0091] According to some embodiments of the present application, with reference to Figures 1-9The synthetic jet group 50 can be multiple groups, and the multiple synthetic jet groups 50 can be arranged along the circumference of the air supply frame 40. The number of air multipliers 60 is the same as the number of synthetic jet groups 50 and one-to-one correspondence. By arranging the synthetic jet group 50 as multiple groups along the circumference of the air supply frame 40, the air flow rate of the ejector can be further increased, the air volume can be further increased, and since the multiple synthetic jet groups 50 are arranged along the circumference of the air supply frame 40, the space in the air supply frame 40 can be further utilized. While achieving a large air volume, the space occupied by all synthetic jets 5 can be reduced, making the structure of the air supply unit 30 more compact and the overall structure simple.

[0092] Optionally, the multiple synthetic jet groups 50 can be controlled synchronously, for example, the multiple synthetic jet groups 50 can be turned on or turned off synchronously; each synthetic jet group 50 in the multiple synthetic jet groups 50 can be controlled independently, so that the size of the air volume can be controlled, the size of the air volume can be adjusted, and the air range can be adjusted.

[0093] For example, in the example of Figures 1-9 The synthetic jet group 50 is four groups, and the air supply frame 40 has four accommodating cavities 44. The four synthetic jet groups 50 are accommodated in the four accommodating cavities 44, respectively. Each accommodating cavity 44 extends along the circumference of the air supply frame 40, and the four synthetic jet groups 50 are arranged along the circumference of the air supply frame 40 in sequence. The air supply frame 40 can be rectangular, two of the accommodating cavities 44 are arranged opposite to each other along the up-down direction and each accommodating cavity 44 extends along the left-right direction, and two synthetic jet groups 50 are arranged in the two accommodating cavities 44, respectively. The other two accommodating cavities 44 are arranged opposite to each other along the left-right direction and each accommodating cavity 44 extends along the up-down direction, and the other two synthetic jet groups 50 are arranged in the two accommodating cavities 44, respectively. Each synthetic jet group 50 includes multiple synthetic jets 5 arranged along the circumference of the air supply frame 40 in sequence. The multiple synthetic jets 5 in the synthetic jet group 50 arranged in the two accommodating cavities 44 arranged in the up-down direction are arranged in sequence along the left-right direction, and the multiple synthetic jets 5 in the synthetic jet group 50 arranged in the two accommodating cavities 44 arranged in the left-right direction are arranged in sequence along the up-down direction.

[0094] The air multiplier 60 is four, four air multiplier 60 along the circumference of the air supply frame 40, four air multiplier 60 and four groups of synthetic jet group 50 respectively one-to-one corresponding, each air multiplier 60 of the air outlet duct 62 is located in the downstream side of the air passage 45 of the containing cavity 44 corresponding to the synthetic jet group 50. The air outlet duct 62 of each air multiplier 60 is a slit extending along the circumference of the air supply frame 40. Two air multiplier 60 is arranged opposite in the up-down direction and the air outlet duct 62 of each air multiplier 60 extends in the left-right direction, the air multiplier 60 arranged in the up-down direction and the two containing cavities 44 arranged in the up-down direction correspond respectively; the other two air multiplier 60 is arranged opposite in the left-right direction and the air outlet duct 62 of each air multiplier 60 extends in the up-down direction, the air multiplier 60 arranged in the left-right direction and the two containing cavities 44 arranged in the left-right direction correspond respectively.

[0095] Thus, when a single air supply unit 30 works, the air supply unit 30 can be realized along the four sides of the air supply, increase the air supply range, so that the air supply is more uniform, and the air volume is larger.

[0096] According to some embodiments of the present application, with reference to Figures 1-9 , the air supply frame 40 can be annular, for example, the air supply frame 40 can be a polygonal ring (for example, a quadrilateral ring), the air supply frame 40 can also be a circular ring. The inner circumferential side of the air supply frame 40 has an airflow passage 43, the airflow passage 43 has an airflow inlet 432 and an airflow outlet 434 at both ends of the axial direction, wherein the airflow inlet 432 is located at the same side of the axial direction of the air inlet 451 described above, the air outlet of the air outlet duct 62 is communicated with the airflow passage 43 and the air outlet duct 62 is adapted to air supply to the airflow passage 43 through the air outlet 622. When the synthetic jet 5 sprays air flow into the air outlet duct 62, the external air is brought into the air passage 45 from the air inlet 451, the airflow flowing into the air passage 45 flows into the air outlet duct 62, the air sucked from the air inlet 451 flows into the air outlet duct 62 through the air passage 45 and mixes with the air flow sprayed from the jet port 55 of the synthetic jet 5 in the air outlet duct 62, and then high-speed airflow is sprayed into the airflow passage 43 from the air outlet 622 of the air outlet duct 62.

[0097] In the process of injecting high-speed airflow from the air outlet channel 62 into the airflow channel 43, Bernoulli's principle can be further utilized. When high-speed airflow is injected from the air outlet channel 62 into the airflow channel 43, a negative pressure can be formed near the air outlet 622 of the air outlet channel 62 in the airflow channel 43, so as to further drive external air to flow into the airflow channel 43 from the air inlet 432 of the airflow channel 43 and flow towards the air outlet 434. In the process of the airflow flowing from the air inlet 432 into the airflow channel 43 towards the air outlet 434, the airflow mixed with the airflow injected from the air outlet channel 62 flows out from the air outlet 434 of the airflow channel 43 to the indoor, so as to further improve the air inlet amount, and further improve the air outlet amount.

[0098] In some optional embodiments of the present application, referring to Figures 1-9 The air supply frame 40 can include an outer frame 41 and an inner frame 42. The outer frame 41 is annular, and the inner frame 42 is also annular. The inner frame 42 is arranged on the inner circumferential side of the outer frame 41, that is, the outer frame 41 is arranged on the outer circumferential side of the inner frame 42. The outer frame 41 and the inner frame 42 are connected to form a whole, for example, the outer frame 41 and the inner frame 42 are connected by a connecting rib plate 48. The air multiplier 60 is arranged on the inner circumferential side of the outer frame 41, and at least a part of the air multiplier 60 is arranged between the inner frame 42 and the outer frame 41. The air multiplier 60, the outer frame 41 and the inner frame 42 jointly define the above-mentioned accommodating cavity 44. By arranging the air supply frame 40 to include the above-mentioned outer frame 41 and inner frame 42, the accommodating cavity 44 is conveniently defined in the air supply frame 40, and the structure of the air supply frame 40 is simple, facilitating processing and manufacturing. The inner circumferential side of the inner frame 42 defines the above-mentioned airflow channel 43, or the inner frame 42 and the air multiplier 60 jointly define the above-mentioned airflow channel 43. For example, the inner frame 42 can define a part of the airflow channel 43 adjacent to the air inlet 432, and the inner circumferential side of the air multiplier 60 defines a part of the airflow channel 43 adjacent to the air outlet 434.

[0099] In some optional embodiments of the present application, referring to Figures 1-9 In the direction from the air inlet 432 to the air outlet 434, the air outlet channel 62 extends obliquely towards the direction adjacent to the central axis of the airflow channel 43. Thus, when the air outlet channel 62 injects airflow into the airflow channel 43, the air outlet channel 62 can inject airflow towards the direction adjacent to the central axis of the airflow channel 43, so as to form a negative pressure area between the central axis of the airflow channel 43 and the air outlet 622 of the air outlet channel 62. The range of the negative pressure area is large, so as to attract more external air to flow into the airflow channel 43 from the air inlet 432, thereby further improving the air inlet amount, and further improving the air outlet amount.

[0100] For example, in Figures 1-9In the example shown in FIG. 1, the air supply frame 40 includes the outer frame 41 and the inner frame 42 described above, the inner frame 42 and the air multiplier 60 are both arranged at the inner circumferential side of the outer frame 41, and the air multiplier 60 is located at the axially front side of the inner frame 42. The air multiplier 60 can include a first member 641 connected to the outer frame 41, a hollow cavity 65 being defined between the first member 641 and the outer frame 41, and a second member 642 connected to the axially front end of the inner frame 42, the flow face 63 described above being formed on the first member 641. In the direction from back to front, the second member 642 extends obliquely towards the direction adjacent to the central axis of the air supply frame 40, and the second member 642 and the first member 641 together define the air outlet duct 62 described above, which extends obliquely towards the direction adjacent to the central axis of the air supply frame 40 in the direction from back to front. The inner circumferential side of the inner frame 42 defines a first airflow passage 431, the inner circumferential side of the air multiplier 60 defines a second airflow passage 433, the rear side of the first airflow passage 431 is formed with the airflow inlet 432 described above, the front side of the second airflow passage 433 is formed with the airflow outlet 434 described above, and the first airflow passage 431 and the second airflow passage 433 are arranged along the axial direction of the air supply frame 40 with the second airflow passage 433 being located at the downstream side of the first airflow passage 431. The portion of the first member 641 constituting the wall surface of the air outlet duct 62 constitutes the first flow face 631 described above, and the portion of the first member 641 constituting the wall surface of the second airflow passage 433 constitutes the second flow face 632 described above.

[0101] According to some embodiments of the present application, the air multiplier 60 can be integrally formed with the air supply frame 40. In this way, the installation process of the air multiplier 60 can be omitted, and the structure of the single air supply unit 30 can be simplified.

[0102] According to the air conditioning device of the second aspect of the embodiments of the present application, the air supply device 20 according to the first aspect of the embodiments of the present application is included.

[0103] According to the air conditioning device of the embodiments of the present application, by arranging the air supply device 20 described above, air supply without the air blower can be achieved while the air volume requirement is met, the problem of high noise is fundamentally solved, and low-noise air supply is achieved. In addition, there is no rotating part and no friction loss, and the reliability is improved.

[0104] According to some embodiments of the present application, the air conditioning device can be an air conditioner, and the air conditioning device can comprise a heat exchanger 71, and a water tray 72 can be arranged on the bottom surface of the heat exchanger 71 to receive condensed water. The air conditioning device can comprise a casing 10, and the heat exchanger 71 and the water tray 72 are arranged in the casing 10. The casing 10 can be provided with an air inlet 13. The air supply device 20 can be arranged on the front side of the heat exchanger 71. The air supply device 20 can be arranged in the casing 10, and the casing 10 can be provided with an air outlet 14 when the air supply device 20 is arranged in the casing 10. The air supply device 20 can also not be arranged in the casing 10, and the air supply frame 40 of the air supply device 20 can be connected to the front end of the casing 10. The heat exchanger 71 can be arranged adjacent to the air inlet 13 and on the rear side of the air supply device 20. When the air conditioning device is in operation, the air flow entering the casing 10 from the air inlet 13 can be heated by the heat exchanger 71, and then accelerated and pressurized by the air supply device 20 before being sent to the indoor space, so as to adjust the indoor temperature.

[0105] Optionally, when the air conditioning device is an air conditioner, the air conditioner can be a split type air conditioner, for example, a split wall-mounted air conditioner. The air conditioner can comprise an indoor unit 100 and an outdoor unit. The indoor unit 100 can comprise the casing 10, the air supply device 20, the heat exchanger 71, and the water tray 72.

[0106] The air conditioning device according to the embodiments of the present application will be described below with reference to the accompanying drawings. Figures 12-20

[0107] Embodiment I,

[0108] With reference to Figures 12-15 In this embodiment, the air conditioning device is a split wall-mounted air conditioner, and the air conditioner can comprise an indoor unit 100 and an outdoor unit. The indoor unit 100 can comprise the casing 10, the air supply device 20, the heat exchanger 71, the water tray 72, and the ventilation grating 15. At least the top of the casing 10 can be provided with the air inlet 13. The heat exchanger 71 can be arranged in the casing 10. The water tray 72 can be arranged in the casing 10 and on the bottom surface of the heat exchanger 71. The front side of the casing 10 can be open. The air supply device 20 can be arranged on the front side of the heat exchanger 71 and on the front side of the casing 10. The air supply frame 40 of the air supply device 20 can be connected to the casing 10.

[0109] ​The air supply device 20 comprises an air supply unit 30, which comprises an air supply frame 40, four groups of synthetic jet devices 50, and four air multipliers 60. The air supply frame 40 is in the shape of a rectangular ring, and comprises an outer frame 41 and an inner frame 42, both in the shape of a rectangular ring. The outer frame 41 is sleeved on the outer circumferential side of the inner frame 42 and is connected with the inner frame 42 into an integral whole. The outer frame 41 and the inner frame 42 are connected through a connecting rib plate 48. The air multipliers 60 and the inner frame 42 are both arranged on the inner circumferential side of the outer frame 41. The air multipliers 60 and the inner frame 42 are arranged in the axial direction of the outer frame 41. The axial direction of the outer frame 41 can be parallel to the front-rear direction. The air multipliers 60 are located on the front side of the axial direction of the inner frame 42. The ventilation grille 15 is arranged in the airflow channel 43 and adjacent to the airflow inlet 432. The ventilation grille 15 is connected with the inner frame 42. The ventilation grille 15 can be detachably connected with the inner frame 42. The ventilation grille 15 can also be integrally formed with the inner frame 42.

[0110] The four air multipliers 60 are arranged in the circumferential direction of the outer frame 41. The four air multipliers 60 and the outer frame 41 and the inner frame 42 together define four accommodation cavities 44. Adjacent two accommodation cavities 44 can be separated by the connecting rib plate 48. The air inlet 451 is defined between the axial rear side of the outer frame 41 and the axial rear side of the inner frame 42. The air inlet 451 is in communication with the accommodation cavities 44. The four air multipliers 60 are arranged along the four edges of the air supply frame 40 respectively. Two air multipliers 60 are arranged along the left and right edges of the air supply frame 40 and extend in the up-down direction. The other two air multipliers 60 are arranged along the upper and lower edges of the air supply frame 40 and extend in the left-right direction. The four accommodation cavities 44 are formed. Two accommodation cavities 44 are oppositely arranged in the up-down direction and each extends in the left-right direction. Two groups of synthetic jet devices 50 are arranged in the two accommodation cavities 44 respectively. The other two accommodation cavities 44 are oppositely arranged in the left-right direction and each extends in the up-down direction. The other two groups of synthetic jet devices 50 are arranged in the two accommodation cavities 44 respectively. Each group of synthetic jet devices 50 comprises a plurality of synthetic jet devices 5 arranged in the circumferential direction of the air supply frame 40. The plurality of synthetic jet devices 5 in the group of synthetic jet devices 50 arranged in the up-down direction are arranged in the left-right direction. The plurality of synthetic jet devices 5 in the group of synthetic jet devices 50 arranged in the left-right direction are arranged in the up-down direction. The four air multipliers 60 are integrally formed with the air supply frame 40.

[0111] Each air multiplier 60 can include a first member 641 connected to the outer frame 41, a hollow cavity 65 defined between the first member 641 and the outer frame 41, and a second member 642 connected to an axial front end of the inner frame 42, the flow face 63 being formed on the first member 641. The second member 642 extends obliquely toward the central axis of the air supply frame 40 in the rear-to-front direction, and the second member 642 and the first member 641 together define the air outlet duct 62 which extends obliquely toward the central axis of the air supply frame 40 in the rear-to-front direction. The inner periphery of the inner frame 42 defines a first airflow passage 431, the inner periphery of the air multiplier 60 defines a second airflow passage 433, the rear side of the first airflow passage 431 is formed with the airflow inlet 432, the front side of the second airflow passage 433 is formed with the airflow outlet 434, the first airflow passage 431 and the second airflow passage 433 are arranged along the axial direction of the air supply frame 40, and the second airflow passage 433 is located downstream of the first airflow passage 431. The portion of the first member 641 which constitutes the wall surface of the air outlet duct 62 constitutes the first flow face 631, the portion of the first member 641 which constitutes the wall surface of the second airflow passage 433 constitutes the second flow face 632, a portion of the flow guide face 633 can be constituted by the partial wall surface of the air outlet duct 62, and another portion of the flow guide face 633 can be constituted by the portion of the first member 641 which constitutes the wall surface of the second airflow passage 433. The air outlet 622 of each air outlet duct 62 communicates the air outlet duct 62 with the airflow passage 43.

[0112] Optionally, the four groups of synthetic jet devices 50 can be controlled synchronously, for example, the four groups of synthetic jet devices 50 can be opened or closed synchronously, air supply unit 30 can be implemented to blow air along the four sides, increase the air outlet range, make the air outlet more uniform, and the air volume is larger.

[0113] Optionally, each of the four groups of synthetic jet groups 50 can be controlled independently, so that the air volume can be controlled, the air volume can be adjusted, and the air range can be adjusted. For example, only the synthetic jet group 50 at the upper end can be turned on to achieve upward air; only the synthetic jet group 50 at the lower end can be turned on to achieve downward air; only the synthetic jet group 50 at the left end can be turned on to achieve leftward air; only the synthetic jet group 50 at the right end can be turned on to achieve rightward air; only the synthetic jet group 50 at the upper end and the synthetic jet group 50 at the lower end can be turned on to achieve upward and downward air; only the synthetic jet group 50 at the left end and the synthetic jet group 50 at the right end can be turned on to achieve leftward and rightward air; or all the four groups of synthetic jet groups 50 can be turned on to achieve air blowing around the air supply unit 30, increase the air range, and make the air blowing more uniform and the air volume larger. By controlling each of the four groups of synthetic jet groups 50 independently, the air volume and the air range can be adjusted.

[0114] Embodiment Two,

[0115] With reference to Figures 16-20 The structure of the air conditioning device in the embodiment is different from the structure of the air conditioning device in Embodiment One in that the number of air supply units 30 included in the air supply device 20, the positions of the casing 10 and the ventilation grille 15. In this embodiment, the air supply device 20 includes a plurality of air supply units 30 arranged in multiple rows and multiple columns. For example, the air supply units 30 are six, arranged in two rows and three columns, and connected between adjacent air supply units 30 to form a whole. The air supply device 20 is arranged in the casing 10, which includes a rear shell 11 and a face frame 12 arranged at the front side of the rear shell 11 and connected with the rear shell 11. At least the top wall of the rear shell 11 is formed with an air inlet 13, and the front side of the face frame 12 is formed with an air outlet 14. The heat exchanger 71 and the water pan 72 are arranged in the rear shell 11, the air supply device 20 is arranged in the face frame 12 and connected with the face frame 12, the ventilation grille 15 is arranged at the air outlet 14, and the air outlet 622 of the airflow channel 43 of the air supply device 20 is opposite to and communicates with the air outlet 14.

[0116] The structure of the air supply unit 30 is the same as that of the air supply unit 30 in Embodiment One, which will not be described here.

[0117] In the description of the specification, reference to "one embodiment", "some embodiments", "an exemplary embodiment", "an example", "a specific example", or "some examples" means that a particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "in some embodiments", "in an exemplary embodiment", "an example", "a specific example", or "some examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0118] Although embodiments of the application have been illustrated and described, it will be clear to those of ordinary skill in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the principles and the spirit of the application. The scope of the application is limited only by the claims and the equivalents thereof.

Claims

1. An air supply device, characterized by comprising: The air supply unit comprises at least one air supply frame, which has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; 2. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 3. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 4. The air supply device according to claim 3, wherein The air supply frame has a receiving cavity and an air inlet; 5. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 6. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 7. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 8. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 9. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 10. The air supply device according to claim 1, wherein The air supply frame has a receiving cavity and an air inlet; 11. The air supply device according to any one of claims 1 to 10, wherein The air supply frame has a receiving cavity and an air inlet; 12. The air supply device according to claim 11, wherein The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; 13. 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The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air inlet; The air supply frame has a receiving cavity and an air 14. The air supply device according to claim 1, wherein The air supply units are multiple, and the multiple air supply units are arranged in rows, arranged in columns, arranged in multiple rows and multiple columns, or arranged irregularly.

15. An air conditioning apparatus characterized by comprising: Comprise: The air supply device according to any one of claims 1-14.

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