A cold air blower with air supply vanes adjustable at multiple angles

Abstract

The present invention relates to the technical field of air coolers, and in particular to an air cooler with multi-angle adjustable air supply blades. The air cooler comprises a base, a chassis is arranged on the top of the base, side panels are arranged on one side of the chassis near both ends, a top panel is fixedly connected between the two side panels at the top, and an outer frame is arranged between the two side panels and the ends of the top panel; a wave assembly is arranged between the two side panels at the middle, an air supply assembly is arranged between the two side panels at both ends of the wave assembly, and a return assembly is arranged inside the outer frame near the end of the air supply assembly; the wave assembly is used to cut the central airflow into spiral micro-vortices, the air supply assembly swings up and down and left and right to adjust the blowing angle, and when the air supply assembly is adjusted to the extreme angle, it will drive the return assembly to tilt, and the return assembly is used to receive the airflow of the air supply assembly at the extreme angle.

Description

Technical Field

[0001] The present invention relates to the technical field of air coolers, and more particularly to an air cooler with air supply vanes that can be adjusted at multiple angles. Background Art

[0002] An air cooler is a device that can send out cold air to adjust the indoor temperature and improve the air environment. It mainly drives a fan to rotate through a motor, causing air to flow through an internal refrigeration device or be cooled by a cooling medium such as cold water or ice cubes, and then blowing the low-temperature air to the outside, thereby playing a role in reducing the indoor temperature, increasing the air humidity, and creating a cool and comfortable space. It is commonly used in various environments such as homes, offices, and commercial stores, bringing a cool feeling to people. Compared with traditional air conditioners, it has the characteristics of energy conservation and lower costs.

[0003] The existing air cooler air supply vanes have diverse structures. Commonly, there are fixed-angle vanes made of plastic or metal, arranged in a certain pattern at the air outlet, with an unadjustable angle, mainly for directional air supply; there are also vanes with manually adjustable angles, connected to the air outlet frame through components such as knobs and connecting rods, and users can manually turn the knob to change the tilt angle of the vanes to achieve air supply in different directions; in addition, some high-end air coolers are equipped with electrically adjustable vanes, relying on an internal motor and transmission structure, and can be controlled by a remote control or buttons on the body, allowing for precise and flexible multi-angle adjustment of the vanes to meet diverse air supply requirements.

[0004] The existing air cooler air supply vanes have obvious deficiencies in terms of multi-angle adjustment in terms of structure: Fixed-angle vanes, due to their immovable installation method, completely rely on the factory-preset angle for air supply, resulting in a single air supply direction and a narrow range, being unable to flexibly adjust according to the indoor layout, the position of people, or the usage scenario, easily causing local overcooling or air supply dead zones; Although the manually adjustable structure can change the vane angle, it mostly relies on mechanical components such as knobs and connecting rods. During operation, it requires close manual operation and the adjustment range is limited. The process is cumbersome and the accuracy is insufficient. After long-term use, it is prone to jamming or angle fixation failure due to component wear; while some electric adjustment structures have achieved remote control, their internal transmission structures (such as gears and motors) are complex, not only increasing the body weight and manufacturing cost, but also being prone to failures due to high precision requirements for component cooperation, and the maintenance difficulty is relatively large. Generally speaking, the existing structures are difficult to meet the diverse needs of users for personalized air supply in terms of adjustment convenience, flexibility, and reliability. Summary of the Invention

[0005] The present invention provides an air cooler with multi-angle adjustable air supply blades, which is provided with a chassis on the top of the base, and an air supply assembly consisting of a horizontal rod, a vertical rod and a rebound member is arranged between the two side panels of the chassis and the top panel and the base, so that the horizontal blades and the vertical blades can swing up and down and left and right to adjust the blowing angle, and the angle is reset by the rebound member during the swing; a wave assembly consisting of a ball joint, a long axis, a short axis and fan blades is arranged in the middle of the crossed horizontal blades and vertical blades, so that the central airflow is cut into spiral micro-vortices to enhance the air mixing efficiency; when the air supply assembly is adjusted to the extreme angle, the long plate, short plate and other return flow components in the outer frame are driven to tilt, and the airflow of the air supply assembly at the extreme angle is received, thereby reducing the air volume attenuation and the air supply blind area. Thereby solving the problems raised in the above-mentioned background technology, namely:

[0006] The existing air cooler air supply blades have the problems of inconvenient adjustment, limited adjustment range, complex structure and easy failure, narrow air supply range and easy to cause air supply dead angle.

[0007] To achieve the above purpose, the air cooler with multi-angle adjustable air supply blades comprises a base, a chassis is provided on the top of the base, side panels are provided on one side of the chassis near both ends, a top panel is fixedly connected between the two side panels at the top, and an outer frame is provided between the two side panels and the ends of the top panel;

[0008] A wave assembly is provided at the middle between the two side plates, an air supply assembly is provided at both ends of the wave assembly between the two side plates, and a return assembly is provided inside the outer frame near the end of the air supply assembly;

[0009] The wave component is used to cut the central airflow into spiral micro-vortices, and the air supply component swings up and down and left and right to adjust the blowing angle. When the air supply component is adjusted to the extreme angle, it will drive the return flow component to tilt, and the return flow component is used to receive the airflow of the air supply component at the extreme angle.

[0010] In the above technical solution, the air supply assembly includes multiple horizontal bars and vertical bars. The horizontal bars are arranged between two side plates, and the vertical bars are arranged between the top plate and the inside of the base. Both ends of the horizontal bars and the vertical bars are provided with rebound parts.

[0011] A wave component is provided in the middle between the intersections of the plurality of transverse blades and the vertical blades, and the wave component is movably connected between the two side plates.

[0012] Among them, the resilient part includes a sleeve, and multiple sleeves are respectively fixedly connected between the two side plates, the top plate and the inside of the base, and a cross bar and a vertical bar are movably connected between the insides of two opposite sleeves, and elastic parts are provided between the cross bar and the vertical bar and the inner bottom of the sleeve.

[0013] On this basis, the wave assembly includes a ball joint, which is located near the middle between multiple crossed horizontal blades and vertical blades. The ball joint is movably connected to the inside of the two side panels via a long axis, and the ball joint is movably connected to the inside of the top plate and the base via a short axis.

[0014] The outer walls of the long axis and the short axis are both fixedly connected with a plurality of fan blades, and the plurality of fan blades are evenly distributed in the gaps between the crossed horizontal blades and the vertical blades.

[0015] In another technical solution, the reflux assembly includes a long plate and a short plate, both ends of the long plate and the short plate are provided with a rotating shaft, and the rotating shaft is movably connected to the inside of the outer frame.

[0016] The two long plates are located at the upper and lower ends of the outer frame close to the horizontal blades, and the two short plates are located at the left and right ends of the outer frame close to the vertical blades.

[0017] Among them, the outer wall of the long board on one side close to the horizontal blade is provided with a soft pad matching the size of the long board, and the outer wall of the short board on one side close to the vertical blade is provided with a soft pad matching the size of the short board, and the soft pad is made of silicone.

[0018] This technical solution, through the arrangement of horizontal bars, vertical bars and rebound parts in the air supply component, allows the horizontal blades and vertical blades to swing up and down, left and right to adjust the blowing angle and achieve angle reset. Specifically, the horizontal bar and the vertical bar are movably connected in the sleeve, and an elastic part is arranged between the horizontal bar and the inner bottom of the sleeve. After the angle is rotated and adjusted under the drive of the motor, the elastic part can drive it to reset; in addition, a wave component is arranged in the middle of the crossed horizontal blades and vertical blades, and the fan blades on the long axis and the short axis are rotated by wind force, cutting the central airflow into spiral micro-vortices to enhance the air mixing efficiency, and when the air supply component is adjusted to the extreme angle, the long plate, short plate and other return flow components in the outer frame are driven to tilt, and the airflow of the air supply component at the extreme angle is taken over, reducing the attenuation of air volume and the air supply blind area. The silicone pads on the long plate and the short plate can also avoid rigid collision between the blades and the return flow component during adjustment, reduce noise and wear, thereby solving the problems of inconvenient adjustment of the air supply blades of the existing air cooler, limited adjustment range, complex structure and easy failure, narrow air supply range and easy to cause air supply dead angle.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In a cold air machine with multi-angle adjustable air supply blades, the linkage design of the horizontal bar, vertical bar and rebound member of the air supply assembly (the horizontal bar and vertical bar are movably connected in the sleeves of the side panels, top panels and base, and elastic members are arranged at the bottom of the sleeves) enables the horizontal blades and vertical blades to swing up and down, left and right at multiple angles under the drive of the motor, and the elastic members automatically reset after adjustment. This structure not only gets rid of the cumbersome operation and precision limitations of traditional manual adjustment, but also abandons the vulnerable defects of complex electric transmission systems (such as gear jamming and connecting rod wear). While simplifying the structure, it significantly enhances the user's convenience of operation and system reliability.

[0021] 2. In an air cooler with multi-angle adjustable air supply blades, through the linkage cooperation of the air supply component and the return flow component (when the horizontal blades and vertical blades are adjusted to the extreme angles, their ends push the long and short plates in the outer frame to tilt around the rotation axis), the silicone pads on the long and short plates can flexibly receive the edge airflow, reducing the air volume attenuation caused by angle deflection; when the horizontal blades swing upward, the upper and lower long plates tilt synchronously to guide the top leakage to converge in the middle, avoiding the energy waste caused by cold air blowing directly on the ceiling in the traditional structure, and achieving efficient air supply at extreme angles.

[0022] 3. In an air cooler with multi-angle adjustable air supply blades, the airflow is coupled with the cross blades through the wave component (the fan blades on the long and short axes connected by ball joints passively rotate under the push of the central airflow, cutting out spiral micro-vortices), which collide and mix with the straight airflow discharged by the surrounding horizontal blades and vertical blades to form a soft wind with natural wind speed fluctuations, avoiding the discomfort of hard wind directly blown by traditional air coolers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a front view structural schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the regulating blade of the present invention;

[0026] Figure 4 An exploded view of the regulating blade of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the air supply assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the support structure of the resilient member of the present invention;

[0029] Figure 7 It is a schematic diagram of the internal structure of the resilient member of the present invention;

[0030] Figure 8 It is a schematic diagram of the side view structure of the blade of the present invention;

[0031] Figure 9 Schematic diagram of the reflux component structure of the present invention;

[0032] Figure 10 Schematic diagram of the cushion structure of the present invention;

[0033] Figure 11 Schematic diagram of the fluctuation component structure of the present invention;

[0034] Figure 12 Schematic diagram of the disassembled structure of the fluctuation component of the present invention.

[0035] The meanings of each label in the figure are as follows:

[0036] 1. Base; 11. Chassis; 12. Side plate; 13. Top plate; 14. Outer frame;

[0037] 15. Air supply component; 150. Horizontal blade; 151. Cross bar; 152. Vertical blade; 153. Vertical bar; 154. Rebound member; 1540. Sleeve; 1541. Elastic member;

[0038] 16. Reflux component; 160. Long plate; 161. Short plate; 162. Cushion;

[0039] 17. Fluctuation component; 170. Ball hinge; 171. Short shaft; 172. Long shaft; 173. Fan blade. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Currently, for the problems of inconvenient adjustment, limited adjustment range, complex structure and easy failure, narrow air supply range and easy formation of air supply dead angles existing in the existing air supply blades of the air cooler, the present invention provides an air cooler with multi-angle adjustable air supply blades. Refer to Figures 1 - 12 as shown, it includes a base 1, a chassis 11 is provided on the top of the base 1, side plates 12 are provided at both ends near one side of the chassis 11, a top plate 13 is fixedly connected between the two side plates 12 at the top, and an outer frame 14 is provided between the end portions of the two side plates 12 and the top plate 13;

[0042] A fluctuation component 17 is provided in the middle between the two side plates 12, an air supply component 15 is provided at both ends of the fluctuation component 17 between the two side plates 12, and a reflux component 16 is provided inside the outer frame 14 near the end of the air supply component 15;

[0043] The wave component 17 is used to cut the central airflow into spiral micro-vortices, and the air supply component 15 swings up and down and left and right to adjust the blowing angle. When the air supply component 15 is adjusted to the extreme angle, it will drive the return flow component 16 to tilt, and the return flow component 16 is used to receive the airflow of the air supply component 15 at the extreme angle.

[0044] When implementing, see Figure 5 As shown, the air supply assembly 15 includes a plurality of horizontal bars 151 and vertical bars 153 . The horizontal bars 151 are arranged between the two side panels 12 , and the vertical bars 153 are arranged between the top panel 13 and the inside of the base 1 . Both ends of the horizontal bars 151 and the vertical bars 153 are provided with rebound members 154 .

[0045] The outer wall of the horizontal rod 151 is provided with horizontal blades 150 near both ends, and the outer wall of the vertical rod 153 is provided with vertical blades 152 near both ends. The horizontal blades 150 and the vertical blades 152 are cross-connected.

[0046] A wave assembly 17 is provided in the middle between the intersections of the plurality of transverse blades 150 and the vertical blades 152 , and the wave assembly 17 is movably connected between the two side plates 12 .

[0047] During operation, the motor drives the cross bar 151 and the vertical bar 153 to rotate around their respective axes; wherein the cross bar 151 is horizontally arranged between the two side plates 12, and the cross blades 150 at both ends of its outer wall rotate with the cross bar 151 to achieve up and down angle adjustment (such as 60° upward swing and 45° downward swing), thereby controlling the vertical air supply angle; and the vertical bar 153 is longitudinally arranged between the top plate 13 and the base 1, and the vertical blades 152 at both ends of its outer wall rotate with the vertical bar 153 to achieve left and right angle adjustment (such as 50° left and 50° right), thereby controlling the horizontal air supply angle;

[0048] The horizontal blades 150 and the vertical blades 152 are cross-connected to form a "cross-shaped" cross-blade structure. The horizontal rod 151 and the vertical rod 153 are rotated in conjunction with each other to achieve four-dimensional adjustment of the air supply angle, covering a wider area that cannot be reached by traditional single-axis adjustment (such as diagonal air supply).

[0049] When the motor drives the horizontal rod 151 or the vertical rod 153 to rotate, the rod body overcomes the elastic member 1541 such as a spring resistance in the sleeve 1540 and moves, driving the blades to adjust to the target angle; when the motor stops driving or the external force is removed, the elastic member 1541 releases the elastic force, pushing the horizontal rod 151 or the vertical rod 153 to reset along the axis of the sleeve 1540, so that the blades automatically return to the initial center position or a preset angle such as a horizontal neutral position.

[0050] See also Figure 7As shown, the resilient member 154 includes a sleeve 1540. A plurality of sleeves 1540 are respectively fixedly connected between two side plates 12, a top plate 13 and the inside of a base 1. A cross bar 151 and a vertical bar 153 are respectively movably connected between two opposite sleeves 1540. Elastic members 1541 are provided between the cross bar 151 and the vertical bar 153 and the inner bottom of the sleeve 1540.

[0051] When the motor drives the cross bar 151 or the vertical bar 153 to rotate to adjust the blade angle, the rod body is displaced under force. The motor torque is transmitted to the cross bar 151 or the vertical bar 153 through a gear or a coupling. The rod body rotates around its own axis. At the same time, due to the aerodynamic resistance generated by the change of the blade angle or the manual thrust of the user, the rod body slides slightly along the axial direction in the sleeve 1540 (the displacement is 5 - 10 mm), compressing the elastic member 1541 in the sleeve 1540.

[0052] At this time, the elastic member 1541 (elastic coefficient 50 - 80 N / m) is compressed, storing elastic potential energy. Its elastic force is proportional to the displacement of the rod body, forming a resistance in the opposite direction to the driving direction, ensuring the smooth rotation of the rod body and avoiding the angle out of control caused by sudden external force changes. When the motor stops driving or the external force is withdrawn, the elastic member 1541 releases the stored potential energy, and pushes the rod body to slide reversely along the axis of the sleeve 1540 through the compressed elastic member 1541 until the rod body returns to the initial central position (such as the horizontal blade 150 or the vertical blade 152 is in the horizontal or vertical neutral position), and the elastic member 1541 returns to its natural length. The smooth surface of the inner wall of the sleeve 1540 (roughness Ra ≤ 1.6 μm) and the precise fit with the rod body (tolerance H7 or g6) ensure the accurate reset direction. The buffering effect of the elastic member 1541 reduces the mechanical impact during reset (the impact load is reduced by 40%). At the same time, the vibration of the rod body is suppressed through the damping effect (such as the internal friction of the material of the elastic member 1541), so that the blade stays stably at the target angle or the initial position.

[0053] So that the rod body can simultaneously achieve "rotation around the axis" (adjusting the blade angle) and "sliding along the axis" (compressing or releasing the elastic member 1541) in the sleeve 1540, and the two do not interfere with each other, supporting independent or linkage adjustment of the cross bar 151 or the vertical bar 153 (such as the combined angle of the horizontal blade 150 up and down 30° + the vertical blade 152 left and right 45°). Ensure that the blade maintains a stable angle without power input, avoid angle drift caused by vibration or air flow back push (angle holding accuracy ±2°), and at the same time simplify the control system design (no need for continuous power to maintain the angle).

[0054] In addition, refer to Figure 11As shown in the figure, the fluctuation component 17 includes a ball joint 170, which is located near the middle between a plurality of intersecting horizontal blades 150 and vertical blades 152. There is a long shaft 172 movably connected between the ball joint 170 and the inside of the two side plates 12, and a short shaft 171 movably connected between the ball joint 170 and the inside of the top plate 13 and the base 1.

[0055] A plurality of fan blades 173 are fixedly connected to the outer walls of the long shaft 172 and the short shaft 171, and the plurality of fan blades 173 are evenly distributed in the gaps between the intersecting horizontal blades 150 and vertical blades 152.

[0056] When the cold air blower is running, the central high-speed air flow (wind speed 5 - 8m or s) cooled by the refrigeration module passes through the gaps between the cross blades, impacting the surface of the fan blades 173; through the inclination angle of the fan blades 173, the air flow generates a tangential component force, pushing the long shaft 172 and the short shaft 171 to rotate around their respective axes (the long shaft 172 controls the left - right rotation, and the short shaft 171 controls the up - down rotation), and the rotation speed automatically matches the wind speed (for example, when the wind speed is 5m or s, the rotation speed is about 80rpm, and when the wind speed is 8m or s, the rotation speed increases to 120rpm), without the need for an additional motor drive;

[0057] During the rotation process, the ball joint 170 allows the long shaft 172 and the short shaft 171 to swing slightly, enabling the fan blades 173 to pitch or roll slightly while rotating (such as swinging upward by 10° or yawing left by 15°), adapting to different angle combinations of the cross blades (for example, when the horizontal blade 150 is upward by 30° + the vertical blade 152 is left - deflected by 40°, the fan blades 173 automatically adjust to the optimal cutting angle);

[0058] The central columnar air flow is cut into spiral micro - eddies with a diameter of 50 - 100mm through the spiral trajectory of the fan blades 173. The core wind speed of the eddy is about 80% of the main air flow, and a low - speed diffusion area is formed around. When colliding with the straight air flow (uniform speed) discharged from the surrounding horizontal blades 150 and vertical blades 152, a mixed flow field of "laminar flow + turbulent flow" is generated, and the wind speed fluctuation range reaches ±30% (simulating the irregular characteristics of natural wind), avoiding the direct - blowing and harsh - wind feeling of traditional cold air blowers;

[0059] When the horizontal blade 150 swings upward by 60° and the vertical blade 152 remains horizontal, the fan blades 173 of the long shaft 172 rotate upward with the air flow, guiding the eddy to the ceiling and forming a "waterfall - like descending wind" through reflection, avoiding the direct blowing of cold air on the human body; when the vertical blade 152 is left - deflected by 50° and the horizontal blade 150 is downward by 45°, the fan blades 173 of the short shaft 171 rotate downward and obliquely, the eddy focuses on the ground personnel activity area, enhancing the local cooling effect, and at the same time, compensating for the air flow deviation caused by the blade deflection through the swing of the ball joint 170 to ensure that the eddy center is always aligned with the target area.

[0060] In this embodiment, refer to Figure 9As shown, the reflux assembly 16 includes a long plate 160 and a short plate 161 . Both ends of the long plate 160 and the short plate 161 are provided with a rotating shaft, and the rotating shaft is movably connected to the inside of the outer frame 14 .

[0061] The two long plates 160 are located at the upper and lower ends of the outer frame 14 close to the horizontal blades 150 , and the two short plates 161 are located at the left and right ends of the outer frame 14 close to the vertical blades 152 .

[0062] When the horizontal blade 150 of the air supply assembly 15 swings upward to the extreme position, the upper edge of the blade contacts the soft pad 162 at the lower end of the long plate 160, pushing the long plate 160 to tilt upward around the upper end rotation axis (tilt angle 15°~20°); when the vertical blade 152 swings leftward to the extreme position, the left edge of the blade contacts the soft pad 162 on the right side of the short plate 161, pushing the short plate 161 to tilt leftward around the right rotation axis (tilt angle 15°~20°).

[0063] At this time, the inclination angle of the long board 160 or the short board 161 is linked to the blade limit angle in a ratio of 1:0.3 (for example, when the blade swings 60°, the long board 160 tilts 18°). No additional driving mechanism is required, and synchronous action is achieved only through physical contact between the blade and the soft pad 162.

[0064] When the horizontal blade 150 is tilted upward by 60°, the upper long board 160 is tilted upward by 18°, and the guide grooves on the surface of its cushion 162 converge the top leaking air (about 20% of the total air volume) to the middle, avoiding energy waste caused by airflow blowing directly on the ceiling; the lower long board 160 is tilted downward by 15°, receiving the deflected airflow under the blade and guiding it to the ground personnel activity area, thereby increasing the vertical air supply coverage rate from 70% to 95%.

[0065] When the vertical blade 152 deviates 50° to the left, the left short plate 161 tilts 18° to the left to guide the airflow at the left edge to diffuse to the corner of the room (such as the blind spot in the corner of the wall), and the right short plate 161 tilts slightly 10° to the right to supplement the weak air supply area on the right side, thereby reducing the horizontal air supply dead angle from 20% to 5%.

[0066] Among them, see Figure 10 As shown, a soft pad 162 matching the size of the long board 160 is provided on the outer wall of one side of the long board 160 close to the horizontal blade 150, and a soft pad 162 matching the size of the short board 161 is provided on the outer wall of one side of the short board 161 close to the vertical blade 152, and the soft pad 162 is made of silicone.

[0067] When the blade is adjusted to the limit position, the soft pad 162 absorbs the impact energy through elastic deformation (compression amount of 2 mm) (the impact load is reduced by 60%), avoiding the hard impact between the traditional metal blade and the outer frame 14, and reducing the adjustment noise from 65 dB to 55 dB; through the viscoelastic property of the soft pad 162 (loss factor ≥ 0.3), the high-frequency vibration of the blade (such as the pneumatic vibration of 100 - 200 Hz) is suppressed, reducing the loosening of the blade or the wear of the rotating shaft caused by long-term vibration, and extending the service life of the components.

[0068] Working principle:

[0069] When the air cooler is running, the cross bar 151 and the vertical bar 153 of the air supply component 15 driven by the motor rotate around the axis, respectively driving the cross blades 150 and the vertical blades 152 to achieve vertical (up and down ±60°) and horizontal (left and right ±50°) angle adjustment. The cross blades 150 and the vertical blades 152 are cross-connected to form a "cross-shaped" structure, supporting four-dimensional composite adjustment (such as 30° upward + 40° left deviation), breaking through the direction limitation of traditional single-axis adjustment, and covering a wider area such as the diagonal. During the adjustment process, the rod body compresses the elastic member 1541 (such as a spring) in the sleeve 1540 to store potential energy, ensuring smooth rotation; when the motor stops or the external force is withdrawn, the elastic member 1541 releases the potential energy to push the rod body to reset, so that the blade automatically returns to the initial center position or the preset angle (such as the horizontal neutral position), realizing power-off angle stability (accuracy ±2°), and avoiding angle drift caused by vibration or air flow back push.

[0070] In the central area of the cross blades, the long axis 172 and the short axis 171 of the fluctuation component 17 are connected with multiple degrees of freedom through the ball joint 170, and the fan blades 173 on the shaft rotate passively under the impact of the central high-speed air flow (5 - 8 m or s) (the rotation speed automatically matches the wind speed, such as 80 rpm at 5 m or s). The inclination angle of the fan blades 173 cuts the central columnar air flow into spiral micro-vortices with a diameter of 50 - 100 mm, which are mixed with the linear air flow of the surrounding cross blades to form a natural soft wind with a wind speed fluctuation of ±30%, simulating the irregular air flow characteristics of nature and avoiding the direct blowing and hard wind feeling of traditional air coolers. The ball joint 170 allows the shaft body to swing slightly (±15°), adapting to the blade angle combination: when the cross blade 150 is 60° upward, the fan blade 173 tilts upward synchronously to avoid the cold air blowing directly at the human body; when the vertical blade 152 is 50° leftward, the fan blade 173 tilts left and downward to focus the vortex on the ground personnel activity area, enhancing the local cooling effect.

[0071] When the air supply component 15 is adjusted to the extreme angle (for example, the horizontal blade 150 is tilted upward by 60° and the vertical blade 152 is tilted leftward by 50°), the edge of the blade contacts the silicone soft pad 162 on the inner side of the long plate 160 or the short plate 161 of the return air component 16. Through physical linkage, the long plate 160 or the short plate 161 is pushed to tilt around the rotating shaft (the tilt angle is in a ratio of 1:0.3 to the blade swing angle. For example, if the blade is at 60°, the long plate 160 is tilted by 18°), without the need for an additional driving mechanism. The tilted long plate 160 or short plate 161 guides the edge air flow through the surface flow guide groove: in the vertical direction, when the horizontal blade 150 is at the upward extreme angle, the upper long plate 160 converges the air leakage at the top (about 20% of the air volume) to the middle, and the lower long plate 160 receives the deflected air flow and guides it to the ground, increasing the vertical air supply coverage rate from 70% to 95%; in the horizontal direction, when the vertical blade 152 is tilted leftward at the extreme angle, the left short plate 161 guides the air flow to fill the blind area of the corner, and the right short plate 161 supplements the weak area on the right, reducing the horizontal dead angle from 20% to 5%.

[0072] After the user sets the air supply angle through the control module, the motor drives the cross bar 151 or the vertical bar 153 to rotate, driving the blade to swing to the target position, and the elastic member 1541 is compressed to store potential energy; if the extreme angle is reached, the return air component 16 is tilted synchronously to compensate for the edge air flow; at the same time, the fan blade 173 of the fluctuation component 17 rotates with the central air flow, generating a spiral eddy current and mixing it with the directional air flow to form a comfortable soft wind in the target area (such as the direct-blow prevention mode in the bedroom and the wide-area air supply mode in the living room). After the adjustment is completed, the elastic member 1541 drives the blade to reset, and the return air component 16 returns to the vertical initial position due to gravity and air flow pressure, waiting for the next instruction, forming a closed-loop working system of "active adjustment - passive enhancement - flexible buffering".

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold air blower with air supply vanes adjustable at multiple angles, which comprises a base (1), and is characterized in that: A chassis (11) is provided on the top of the base (1), and side panels (12) are provided near both ends of the chassis (11). A top panel (13) is fixedly connected between the two side panels (12) at the top, and an outer frame (14) is provided between the ends of the two side panels (12) and the top panel (13); A wave assembly (17) is provided in the middle between the two side plates (12), air supply assemblies (15) are provided between the two side plates (12) at both ends of the wave assembly (17), and a return flow assembly (16) is provided inside the outer frame (14) near the end of the air supply assembly (15); The air supply assembly (15) comprises a plurality of cross bars (151) and vertical bars (153); the cross bars (151) are arranged between two side plates (12); the vertical bars (153) are arranged between the top plate (13) and the inside of the base (1); and resilient members (154) are provided at both ends of the cross bars (151) and both ends of the vertical bars (153); The outer wall of the horizontal bar (151) is provided with horizontal blades (150) near both ends, and the outer wall of the vertical bar (153) is provided with vertical blades (152) near both ends. The horizontal blades (150) and the vertical blades (152) are cross-connected. A wave component (17) is provided in the middle between the intersections of the horizontal blades (150) and the vertical blades (152). The wave component (17) is movably connected between the two side plates (12). The wave component (17) is used to cut the central airflow into spiral micro-vortices, and the air supply component (15) swings up and down and left and right to adjust the blowing angle. When the air supply component (15) is adjusted to an extreme angle, it drives the return flow component (16) to tilt, and the return flow component (16) is used to receive the airflow of the air supply component (15) at the extreme angle.

2. The air cooler with air supply vanes adjustable at multiple angles according to claim 1, characterized in that: The resilient member (154) comprises a sleeve (1540), wherein a plurality of the sleeves (1540) are respectively fixedly connected between the two side plates (12), the top plate (13) and the inside of the base (1), and a cross bar (151) and a vertical bar (153) are respectively movably connected between the insides of two opposite sleeves (1540), and an elastic member (1541) is provided between the cross bar (151) and the vertical bar (153) and the inner bottom of the sleeve (1540).

3. The air cooler with air supply vanes adjustable at multiple angles according to claim 1, characterized in that: The wave assembly (17) comprises a ball joint (170), wherein the ball joint (170) is located near the middle between a plurality of intersecting transverse blades (150) and vertical blades (152), wherein the ball joint (170) is movably connected to the inside of the two side panels (12) via a long shaft (172), and wherein the ball joint (170) is movably connected to the inside of the top panel (13) and the base (1) via a short shaft (171).

4. The air cooler with air supply vanes adjustable at multiple angles according to claim 3, characterized in that: The outer walls of the long axis (172) and the short axis (171) are both fixedly connected with a plurality of fan blades (173), and the plurality of fan blades (173) are evenly distributed in the gaps between the crossed horizontal blades (150) and vertical blades (152).

5. The air cooler with multi-angle adjustable air supply vanes according to claim 1, characterized in that: The reflux component (16) includes a long plate (160) and a short plate (161). Rotating shafts are provided at both ends of the long plate (160) and the short plate (161), and the rotating shafts are movably connected to the inside of the outer frame (14).

6. The air cooler with air supply vanes adjustable at multiple angles according to claim 5, characterized in that: The two long plates (160) are located at the upper and lower ends of the outer frame (14) near the horizontal blades (150), and the two short plates (161) are located at the left and right ends of the outer frame (14) near the vertical blades (152).

7. The air cooler with air supply vanes adjustable at multiple angles according to claim 6, characterized in that: A soft pad (162) matching the size of the long plate (160) is provided on the outer wall of the long plate (160) on the side close to the horizontal blade (150), and a soft pad (162) matching the size of the short plate (161) is provided on the outer wall of the short plate (161) on the side close to the vertical blade (152). The soft pad (162) is made of silica gel.

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