Volute tongue assembly with self-adaptive adjusting function, air conditioner and control method

Abstract

The invention provides a volute tongue assembly with a self-adaptive adjusting function, an air conditioner and a control method.The volute tongue assembly with the self-adaptive adjusting function comprises a volute tongue, the volute tongue is arranged in an air duct in a protruding mode and provided with a volute tongue windward side, a fan is arranged in the air duct, the axial direction of the fan is the length direction of the volute tongue, and the axial direction of the fan is the length direction of the volute tongue; the windward side of the volute tongue is provided with at least one convex surface position and at least one concave surface position, the convex surface position protrudes towards the air duct relative to the concave surface position, and the height of the convex surface position protruding out of the concave surface position can be adjusted in real time. According to the volute tongue, the protruding height of the convex surface position can be adjusted in real time according to the airflow noise of the air conditioner, the curved surface height of the windward side of the volute tongue is adjusted in real time, the noise sharpness is reduced, and the noise is effectively controlled and reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a scroll tongue assembly, an air conditioner and a control method with an adaptive adjustment function. Background Art

[0002] As an essential household appliance in modern families and commercial environments, in addition to having a comfortable temperature control function, the operating noise of an air conditioner is also one of the important factors concerned by users. The generation of air conditioner noise mainly comes from the interaction between components such as cross-flow fans, volute casings and scroll tongues and airflows, among which the scroll tongue is one of the key components affecting the noise performance. In the prior art, many air conditioner designs adopt scroll tongues with fixed structures. Although they can meet the basic air flow guiding requirements, the effect on noise control is not ideal. Especially when the wind speed and air flow pattern change greatly, the fixed curved surface of the scroll tongue cannot adapt to the air flow change in real time, resulting in ineffective noise suppression. Therefore, how to dynamically adjust the windward surface shape of the scroll tongue while ensuring the air flow stability of the air conditioner has become a difficult problem in the current technology.

[0003] Due to technical problems such as the unsatisfactory noise control effect caused by the adoption of scroll tongues with fixed structures in the prior art air conditioner designs, the present invention researches and designs a scroll tongue assembly, an air conditioner and a control method with an adaptive adjustment function. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the scroll tongue with a fixed structure in the prior art air conditioner design leads to unsatisfactory noise control effect, so as to provide a scroll tongue assembly, an air conditioner and a control method with an adaptive adjustment function.

[0005] To solve the above problems, the present invention provides a scroll tongue assembly with an adaptive adjustment function, which includes:

[0006] A scroll tongue, the scroll tongue is convexly arranged in the air duct, and the scroll tongue has a scroll tongue windward surface. A fan is arranged in the air duct, and the axial direction of the fan is the length direction of the scroll tongue. The scroll tongue windward surface has at least one convex position and at least one concave position. The convex position protrudes into the air duct relative to the concave position, and the height by which the convex position protrudes from the concave position can be adjusted in real time.

[0007] In some embodiments,

[0008] There are at least two convex positions, and there are also at least two concave positions. The bottoms of the at least two concave positions are located on the same surface, which is the reference surface. Moreover, the height by which the convex positions protrude from the reference surface can be adjusted in real time, and a motor and a driving component are arranged on one side of each convex position away from the air duct. Through the motor and the driving component, the height of each convex position can be independently driven to change.

[0009] In some embodiments,

[0010] The driving component includes a crank, a connecting rod, a push rod and a roller. The scroll tongue includes a scroll tongue surface, and the scroll tongue surface includes the windward surface and the leeward surface of the scroll tongue. The roller is connected to the leeward surface of the scroll tongue. The motor is connected to the crank, and the crank is connected to one end of the push rod through the connecting rod. The other end of the push rod is connected to the roller to jack up or retract the scroll tongue surface through the roller, so that the windward surface of the scroll tongue makes a reciprocating motion relative to the reference surface.

[0011] In some embodiments,

[0012] The driving component further includes a chute and a ball. The ball is arranged in the chute, and the push rod is inserted into the ball and can slide in the chute along with the ball.

[0013] In some embodiments,

[0014] There are multiple convex positions, and there are also multiple concave positions. Along the axial direction of the fan, the convex positions and the concave positions are arranged alternately. The length direction is the arrangement direction of the convex positions and the concave positions of the scroll tongue.

[0015] In some embodiments,

[0016] It further includes a raceway. The raceway extends along the length direction of the scroll tongue. The concave positions are supported in the raceway through support rods and are clamped in the raceway, so that the concave positions can only move along the extension direction of the raceway.

[0017] In some embodiments,

[0018] The windward surface of the scroll tongue is a flexible structure, and a deformable structure is arranged at the concave position. The deformable structure is connected to the position between the windward surface of the scroll tongue at the concave position and the support rod; and / or rollers are arranged at the bottom of the support rod, and the rollers are clamped in the raceway to be able to roll in the raceway.

[0019] In some embodiments,

[0020] It further includes a flexible curved surface storage cylinder, which is located on one side of the volute tongue along the length direction, and one end of the volute tongue is wound around the outer periphery of the flexible curved surface storage cylinder. The length of the surface of the volute tongue wound on the flexible curved surface storage cylinder changes with the change of the height lifted at the convex surface position.

[0021] In some embodiments,

[0022] The volute tongue further includes a volute tongue body. The volute tongue surface, the motor, the driving component and the flexible curved surface storage cylinder are all arranged on the volute tongue body. And a part of the structure of the flexible curved surface storage cylinder is located inside the volute tongue body to wind the volute tongue surface. A part of the structure of the flexible curved surface storage cylinder penetrates to the outside of the volute tongue body, and a spiral locking device is wound around the structure of the flexible curved surface storage cylinder that penetrates to the outside of the volute tongue body. The spiral locking device can generate an elastic restoring force on the rotation of the flexible curved surface storage cylinder.

[0023] In some embodiments,

[0024] It further includes a noise sensor and a locking buckle device. The noise sensor is arranged on the volute tongue body to be able to detect noise, and the protruding heights of a plurality of the convex surface positions can be independently and adaptively adjusted according to the magnitude of the noise; the locking buckle device is also arranged on the volute tongue body to be able to lock and position the movement position of the windward surface of the volute tongue.

[0025] The present invention also provides an air conditioner, which includes the aforementioned volute tongue assembly with an adaptive adjustment function.

[0026] The present invention also provides a control method for the aforementioned volute tongue assembly with an adaptive adjustment function, which includes:

[0027] A detection step of detecting noise through the noise sensor;

[0028] A control step. When there are 3 convex surface positions and 2 concave surface positions, along the length direction of the volute tongue, a plurality of convex surface positions and a plurality of concave surface positions are successively point position ①, point position ②, point position ③, point position ④ and point position ⑤. Adjust to mode one, so that the curved surfaces at point position ①, point position ③ and point position ⑤ move to the height with the minimum noise simultaneously.

[0029] In some embodiments,

[0030] In the control steps, after adjusting to Mode 1, keep the curved surfaces at Point ① and Point ⑤ stationary, and adjust the curved surface at Point ③ to move up and down. If it is detected that the noise has not reached the current minimum value, continue to adjust the curved surface at Point ③ to move up and down. If it is detected that the noise has reached the current minimum value, keep the curved surfaces at Point ① and Point ③ stationary, and adjust the curved surface at Point ⑤ to move up and down.

[0031] If it is detected that the noise has not reached the current minimum value at this time, continue to adjust the curved surface at Point ⑤ to move up and down. If it is detected that the noise has reached the current minimum value, lock the windward surface of the scroll tongue, keep the curved surface of the windward surface of the scroll tongue unchanged, and control the air conditioner to operate.

[0032] The scroll tongue assembly, air conditioner, and control method with an adaptive adjustment function provided by the present invention have the following beneficial effects:

[0033] 1. In the present invention, by setting the windward surface of the scroll tongue to have at least one convex position and at least one concave position, and the convex position has a part protruding into the air duct relative to the concave position, the height by which the convex position protrudes from the concave position can be adjusted in real time. It can adjust the protruding height of the convex position in real time according to the airflow noise of the air conditioner, and adjust the curved surface height of the windward surface of the scroll tongue in real time, reducing the sharpness of the noise, effectively controlling and reducing the noise, and making the air conditioner operate more quietly. Especially in the case of high wind speed or complex airflow environment, the present invention can effectively reduce the harshness of the noise; optimize the scroll tongue curved surface design, reduce the airflow resistance and the reflux amount, making the airflow of the air conditioner smoother and improving the airflow efficiency of the air conditioner.

[0034] 2. The present invention also adopts the structural form of a support rod + raceway at the concave position, so that the concave position is clamped in the raceway by the support rod and can only move along the direction of the raceway, thereby ensuring that the convex position of the flexible scroll tongue structure can be deformed to the greatest extent, completing the required upward protrusion or downward retraction movement, and thus effectively cooperating to achieve the effect of reducing the airflow noise of the air conditioner, improving the noise reduction performance, and further improving the airflow efficiency of the air conditioner.

[0035] 3. The present invention also sets the windward surface of the scroll tongue as a flexible structure, which can facilitate the windward surface of the scroll tongue to form a smooth and continuous curved surface through deformation when the convex position is pushed out upward or retracted downward, facilitating contact with the airflow to form a wind guiding effect. And the deformable structure provided between the concave position and the support rod can facilitate the occurrence of tensile deformation between the concave position and the support rod, facilitating the reciprocating movement of the concave position along the raceway, cooperating with the convex position moving up and down, and completing the function and effect of driving multiple convex positions to move up and down according to the noise situation, improving the noise reduction performance and further improving the airflow efficiency of the air conditioner.

[0036] 4. The present invention is based on a noise sensor and an intelligent control system, which can adapt to the noise requirements under different operating states in real time, and achieve intelligent adjustment to ensure that the air conditioner can achieve the best noise control effect in various wind speed modes; the structure design of the present invention is simple, with few components, easy to implement and maintain, and has high reliability and durability; the present invention provides a technical solution for optimizing the noise performance of the air conditioner by adaptively adjusting the curved surface of the tongue facing the wind. Through the flexible windward surface, the intelligent control system and the spiral spring locking mechanism, the dynamic adjustment of the tongue is realized, and the dual performance of air flow and noise is optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is the external structure diagram of the indoor unit of the air conditioner of the present invention;

[0038] Figure 2 is the sectional view and air duct structure diagram of the indoor unit of the air conditioner of the present invention;

[0039] Figure 3 is the overall structure schematic diagram of the tongue assembly of the present invention;

[0040] Figure 4 is the inner side structure schematic diagram of the tongue assembly of the present invention;

[0041] Figure 5 is the outer side structure schematic diagram of the tongue assembly of the present invention;

[0042] Figure 6 is the convex surface position and transmission mechanism schematic diagram of the tongue assembly of the present invention;

[0043] Figure 7 is the concave surface position and support rod and other structure schematic diagram of the tongue assembly of the present invention;

[0044] Figure 8 is the point sequence schematic diagram of the tongue assembly of the present invention;

[0045] Figure 9 is the exploded structure diagram of the core components of the tongue assembly of the present invention;

[0046] Figure 10 is the adjustment control logic diagram of the curved surface of the tongue facing the wind of the present invention.

[0047] The reference numerals are shown as:

[0048] 1. Volute tongue; 2. Air duct; 3. Windward surface of volute tongue; 4. Fan; 5. Convex position; 6. Concave position; 7. Motor; 8. Crank; 9. Connecting rod; 10. Thrust rod; 11. Drum; 12. Surface of volute tongue; 13. Leeward surface of volute tongue; 14. Slide groove; 15. Ball; 16. Raceway; 17. Support rod; 18. Deformable structure; 19. Flexible curved surface storage cylinder; 20. Volute tongue body; 21. Spiral locking device; 22. Noise sensor; 23. Filter screen; 24. Panel body; 25. Panel; 26. Air deflector; 27. Locking buckle device; 28. Roller. Detailed implementation manners

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0052] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, top, bottom, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0053] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations are made for the spatial relative descriptions used here.

[0054] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without separate declaration, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0055] As Figures 1-10 shown, the present invention provides a scroll tongue assembly with an adaptive adjustment function, which includes:

[0056] A scroll tongue 1, the scroll tongue 1 protrudes and is arranged in the air duct 2, and the scroll tongue 1 has a scroll tongue windward surface 3. A fan 4 is arranged in the air duct 2. Along the axial direction of the fan 4 is the length direction of the scroll tongue 1. The scroll tongue windward surface 3 has at least one convex position 5 and at least one concave position 6. The convex position 5 protrudes into the air duct 2 relative to the concave position 6, and the height by which the convex position 5 protrudes from the concave position 6 can be adjusted in real time.

[0057] In the present invention, the windward surface of the volute tongue is provided with at least one convex position and at least one concave position, and the convex position has a portion protruding into the air duct relative to the concave position. The height by which the convex position protrudes from the concave position can be adjusted in real time. It can adjust the protruding height of the convex position in real time according to the airflow noise of the air conditioner, and adjust the curved surface height of the windward surface of the volute tongue in real time, reducing the sharpness of the noise, effectively controlling and reducing the noise, and making the air conditioner operate more quietly. Especially in the case of high wind speed or complex airflow environment, the present invention can effectively reduce the harshness of the noise; optimize the curved surface design of the volute tongue, reduce the airflow resistance and the reflux volume, make the airflow of the air conditioner smoother, and improve the airflow efficiency of the air conditioner.

[0058] The windward surface of the volute tongue of the present invention adopts a variable curved surface design, reducing the airflow resistance and the reflux volume at the air outlet, thereby improving the airflow efficiency. The present invention reduces the sharpness of the noise during the operation of the air conditioner by adjusting the curved surface height of the windward surface of the volute tongue in real time.

[0059] Beneficial effects:

[0060] The noise suppression effect of the present invention is remarkable: by adjusting the curved surface height of the windward surface of the volute tongue in real time, the sharpness of the noise is reduced, and the air conditioner operates more quietly. Especially in the case of high wind speed or complex airflow environment, the present invention can effectively reduce the harshness of the noise.

[0061] Improve the airflow efficiency: The optimized curved surface design of the volute tongue reduces the airflow resistance and the reflux volume, makes the airflow of the air conditioner smoother, and improves the airflow efficiency of the air conditioner.

[0062] In some embodiments,

[0063] There are at least two convex positions 5, and there are also at least two concave positions 6. The bottoms of the at least two concave positions 6 are on the same surface, which is the reference surface, and the height by which the convex position 5 protrudes from the reference surface can be adjusted in real time. And on the side of each convex position 5 away from the air duct 2, a motor 7 and a driving component are provided, and through the motor 7 and the driving component, the height of each convex position 5 can be independently driven to change.

[0064] This is the preferred structural form of the convex position and the concave position of the present invention, that is, through at least two convex positions, the adjustment performance of the entire windward surface of the volute tongue can be improved, and the noise reduction effect can be improved; and the present invention preferably sets an independent motor and driving component at each convex position, and can drive each convex position to move upward or downward retract, meeting the requirements of the noise reduction performance, further optimizing the curved surface of the volute tongue, reducing the airflow resistance and the reflux volume, and further improving the airflow efficiency.

[0065] In some embodiments,

[0066] the driving component includes a crank 8, a connecting rod 9, a push rod 10 and a roller 11. The scroll tongue 1 includes a scroll tongue surface 12, and the scroll tongue surface 12 includes the scroll tongue windward surface 3 and the scroll tongue leeward surface 13. The roller 11 is in contact with the scroll tongue leeward surface 13. The motor 7 is connected to the crank 8. The crank 8 is connected to one end of the push rod 10 through the connecting rod 9. The other end of the push rod 10 is in contact with the roller 11 to jack up or retract the scroll tongue surface 12 through the roller 11, so that the scroll tongue windward surface 3 reciprocates relative to the reference plane.

[0067] This is a preferred structural form of the driving component of the present invention. Through the combined structural form of the crank - connecting rod structure + the push rod and roller structure, it is possible to jack up or retract the scroll tongue leeward surface by the roller, thereby effectively driving the rising or falling effect at different convex positions, meeting the requirements of noise reduction performance, optimizing the scroll tongue curved surface according to the noise, reducing the air flow resistance and the return flow rate, further improving the air flow efficiency, and improving the noise reduction effect.

[0068] In some embodiments,

[0069] the driving component further includes a chute 14 and a ball 15. The ball 15 is arranged in the chute 14. The push rod 10 is inserted into the ball 15 and can slide in the chute 14 along with the ball 15.

[0070] The driving component of the present invention further realizes the bearing support function for the push rod (the function of the ball) through the structure of the chute and the ball, thereby meeting the effect of the up - and - down reciprocating motion of the push rod, and also reducing the friction between the push rod and the chute, and improving the operating life.

[0071] In some embodiments,

[0072] There are multiple convex positions 5, and there are also multiple concave positions 6. Along the axial direction of the fan 4, the convex positions 5 and the concave positions 6 are alternately arranged. The length direction is the arrangement direction of the convex positions 5 and the concave positions 6 of the scroll tongue 1.

[0073] This is a further preferred structural form of the convex positions and concave positions of the present invention, that is, multiple convex positions and multiple concave positions are formed. Through the alternately arranged convex positions and concave positions, when the motor jacks up the convex position through the crank - connecting rod, push rod and roller structure, its nearest position is the concave position, forming a wavy structure, which can block and regulate the flow of the air flow, thereby effectively regulating the noise of the air flow, improving the noise reduction performance and the air flow efficiency, and improving the performance of the air conditioner operation.

[0074] In some embodiments,

[0075] It further includes a raceway 16, the raceway 16 extends along the length direction of the volute tongue 1, the concave position 6 is supported in the raceway 16 through a support rod 17 and is clamped in the raceway 16, so that the concave position 6 can only move along the extending direction of the raceway 16.

[0076] The present invention also adopts the structural form of arranging a support rod + raceway at the concave position, so that the concave position is clamped in the raceway through the support rod and can only move along the direction of the raceway, thereby ensuring that the convex position of the volute tongue structure of the flexible structure can be deformed to the greatest extent, completing the required upward convex or downward retraction movement, thus effectively cooperating to achieve the effect of reducing the air flow noise of the air conditioner, improving the noise reduction performance, and further improving the air flow efficiency of the air conditioner.

[0077] In some embodiments,

[0078] The windward surface 3 of the volute tongue is a flexible structure, and a deformable structure 18 is arranged at the concave position 6, and the deformable structure 18 is connected to the position between the windward surface 3 of the volute tongue at the concave position 6 and the support rod 17; and / or a roller 28 is arranged at the bottom of the support rod 17, and the roller 28 is clamped in the raceway 16 to be able to roll in the raceway 16.

[0079] The present invention also makes the windward surface of the volute tongue a flexible structure, which can facilitate the formation of a smooth and continuous curved surface through deformation when the convex position is pushed out upward or retracted downward, facilitating the contact with the air flow to form a wind guiding effect, and also through the deformable structure arranged between the concave position and the support rod, it is beneficial to the tensile deformation between the concave position and the support rod, facilitating the reciprocating movement of the concave position along the raceway, cooperating with the convex position moving up and down, completing the function and effect of driving multiple convex positions to move up and down according to the noise situation, improving the noise reduction performance, and further improving the air flow efficiency of the air conditioner.

[0080] The present invention also adopts the roller structure arranged at the bottom of the support rod, which can be clamped in the raceway and roll along with the raceway, reducing the friction force, improving the limit (up and down movement) and guiding movement (along the direction of the raceway) of the concave position, improving the movement adaptability of the windward surface of the volute tongue, enabling it to quickly adapt to the required movement position, improving the response speed to noise adjustment, and improving the noise reduction performance.

[0081] The overall function of the volute tongue assembly of the present invention is composed of the following three parts:

[0082] 1. The curved surface adjustment mechanism of the present invention: Such as Figure 6As shown, the working principle of the centric crank-slider mechanism is that the rotation of the crank is driven by a motor, causing the ejector rod to slide up and down. The motor is fixed on the volute tongue. There is a roller at the upper end of the ejector rod. The ejector rod presses against the windward surface of the flexible volute tongue to form a certain curvature. In this process, the convex surface controls the surface height and curvature by the ejector rod; in addition, there are two concave surfaces, such as Figure 7 As shown, the heights of the two concave surfaces are fixed. Their support rods are fixedly connected to the windward surface of the volute tongue. The fixing material uses a silicone-like soft material. A roller is installed at the lower end, which can roll left and right in a specially set raceway, but the movement in the normal direction of the raceway surface is restricted. This design is because when the convex surface is adjusted, the length of the windward surface of the volute tongue at the effective windward position will change. If the position of the concave surface is limited, it will cause the surface to lock. Therefore, this raceway is set for the dynamic adjustment of the flexible surface. During this entire process, the same components on the other side of the volute tongue will move simultaneously, jointly driving the dynamic adjustment of the entire windward surface of the volute tongue.

[0083] In some embodiments,

[0084] It further includes a flexible surface storage cylinder 19. The flexible surface storage cylinder 19 is located on one side of the volute tongue 1 along the length direction, and one end of the volute tongue 1 is wound around the outer periphery of the flexible surface storage cylinder 19. The length of the surface of the volute tongue wound on the flexible surface storage cylinder 19 changes with the change of the height lifted at the convex surface position 5.

[0085] The present invention also enables the winding of the flexible volute tongue through the structure of the flexible surface storage cylinder, so that the length wound on the flexible surface storage cylinder changes adaptively according to the different heights lifted at the convex surface position, ensuring that the windward surface of the volute tongue assembly is always smooth without wrinkles, improving the guiding and blocking effects on the airflow, improving the noise reduction performance, and improving the airflow efficiency.

[0086] In some embodiments,

[0087] The volute tongue 1 further includes a volute tongue body 20. The volute tongue surface 12, the motor 7, the driving component, and the flexible surface storage cylinder 19 are all arranged on the volute tongue body 20. And a part of the structure of the flexible surface storage cylinder 19 is located inside the volute tongue body 20 to wind the volute tongue surface 12. A part of the structure of the flexible surface storage cylinder 19 penetrates to the outside of the volute tongue body 20, and a spiral locking device 21 is wound around the structure of the flexible surface storage cylinder 19 that penetrates to the outside of the volute tongue body 20. The spiral locking device 21 can generate an elastic restoring force on the rotation of the flexible surface storage cylinder 19.

[0088] The present invention further enables the arrangement of structures such as the surface of the volute tongue, the motor, the driving component, and the flexible curved surface storage cylinder on the volute tongue body through the structure of the volute tongue body. The flexible curved surface storage cylinder is stored inside the volute tongue body, which does not affect the air flow. A spiral locking device is provided on a partial section of the flexible curved surface storage cylinder that penetrates outside the volute tongue body, which can generate an elastic restoring force for the rotation of the flexible curved surface storage cylinder, ensuring that the convex surface position can be retracted and wound onto the storage cylinder by the elastic restoring force of the spiral locking device when retracting, ensuring the smoothness of the windward surface part without wrinkles, ensuring the guiding and blocking effects on the air flow, improving the noise reduction performance, and improving the air flow efficiency.

[0089] The present invention provides a technical solution for optimizing the noise performance of an air conditioner by adaptively adjusting the windward surface curve of the volute tongue. Through the flexible windward surface, the intelligent control system, and the spiral spring locking mechanism, the dynamic adjustment of the volute tongue is realized, optimizing the dual performances of air flow and noise.

[0090] 2. The automatic locking device of the present invention: To ensure that the windward surface of the volute tongue maintains sufficient rigidity during the adjustment process, the present invention designs a unique spiral spring locking mechanism. Figure 5 Its structure can be seen in the figure. This structure is formed by curling and winding thin iron sheets and is fixed on the side of the windward surface of the volute tongue. Initially in a relaxed state, when the windward surface of the volute tongue deforms, it drives the rotation of the drum fixedly connected to the flexible windward surface. This drum is Figure 4 the flexible curved surface storage cylinder shown in the figure, thereby enabling the spiral spring locking mechanism to return to the initial state, ensuring that the windward surface of the volute tongue can maintain appropriate tension and stiffness during the change process, and effectively resisting the eddy currents in the air duct.

[0091] In some embodiments,

[0092] It further includes a noise sensor 22 and a locking buckle device 27. The noise sensor 22 is arranged on the volute tongue body 20 to be able to detect noise, and the protruding heights of multiple convex surface positions 5 can be independently and adaptively adjusted according to the magnitude of the noise; the locking buckle device 27 is also arranged on the volute tongue body 20 to be able to set and position the movement position of the windward surface 3 of the volute tongue.

[0093] The present invention can also detect the noise in the air duct of the air conditioner in real time through the noise sensor, and control the protruding height of the convex surface position to change in real time according to the noise, achieving the effect of real-time control and reducing the air flow noise, improving the noise reduction performance, and optimizing the volute tongue surface design in real time, reducing the air flow resistance and the reflux amount, making the air flow of the air conditioner smoother, and improving the air flow efficiency of the air conditioner; the present invention can also set and position the position of the windward surface of the volute tongue through the locking buckle device, so that when the windward surface of the volute tongue needs to be adjusted to the required position, it is fixed at that position to play the role of guiding the flow and reducing noise.

[0094] Figure 3 The overall structure of the scroll tongue designed for the present invention includes a scroll tongue body 20, a noise sensor 22, and related controllers and a flexible windward surface assembly of the scroll tongue. The same related components are installed on both sides of the scroll tongue, that is, motors, transmission components, etc. of the same specifications are installed on both sides of the scroll tongue. Figure 4 and Figure 5 shows the core components of the present invention, including a scroll tongue body 20, a flexible windward surface of the scroll tongue, a centric crank-slider mechanism for controlling the windward surface of the scroll tongue, a locking device, etc. Among them, the windward surface of the scroll tongue uses a high-temperature resistant and high-strength plastic sheet.

[0095] 3. Intelligent noise adjustment control of the present invention: The noise sensor built into the air conditioner continuously monitors the noise level in the air duct during operation and feeds the signal back to the controller. The controller adjusts the rotation angle of the motor according to the change of the signal value to optimize the curved surface angle of the windward surface of the scroll tongue in real time, so that the noise reaches the lowest value. Through the intelligent noise control mechanism, users can enjoy a quieter air conditioning environment.

[0096] The present invention also provides an air conditioner, which includes the aforementioned scroll tongue assembly with an adaptive adjustment function.

[0097] The present invention provides an indoor unit of an air conditioner with an adjustable scroll tongue tooth direction, including a housing (panel, panel body, bottom shell, etc.), an evaporator, a wind deflector, a cross-flow fan blade (fan 4), a scroll tongue 1 (scroll tongue body, flexible windward surface, crank-slider mechanism, etc.). The present invention focuses on the adaptive adjustment function of the flexible windward surface of the scroll tongue for noise feedback during the operation of the air conditioner. The structure for realizing the main function is composed of a centric crank-slider mechanism and a motor. The slider is connected to the flexible windward surface. As the diagonal length changes, the surface of the flexible windward surface undulates to form a dynamic curved surface with the functions of optimizing air flow and suppressing noise. As Figure 1 is the overall structure of the indoor unit, Figure 2 shows the general structure of the air duct in the indoor unit of a split air conditioner. It can be seen that the scroll tongue is located at a very important checkpoint in the air outlet of the air duct.

[0098] The present invention also provides a control method for the aforementioned scroll tongue assembly with an adaptive adjustment function, which includes:

[0099] A detection step of detecting noise through the noise sensor;

[0100] A control step. When there are 3 convex surface positions 5, there are 2 concave surface positions 6. Along the length direction of the scroll tongue 1, a plurality of convex surface positions 5 and a plurality of concave surface positions 6 are successively point positions ①, point position ②, point position ③, point position ④, and point position ⑤. Adjust to mode one so that the curved surfaces at point positions ①, ③, and ⑤ move to the height with the minimum noise at the same time.

[0101] Based on a noise sensor and an intelligent control system, the present invention can adapt to the noise requirements in different operating states in real time, so as to achieve intelligent adjustment and ensure that the air conditioner can achieve the best noise control effect in various wind speed modes; the structure of the present invention is simply designed, with few components, easy to implement and maintain, and has high reliability and durability; the present invention provides a technical solution for optimizing the noise performance of the air conditioner by adaptively adjusting the curved surface of the tongue facing the wind. Through the flexible windward surface, the intelligent control system and the spiral spring locking mechanism, the dynamic adjustment of the tongue is realized, and the dual performance of air flow and noise is optimized.

[0102] In some embodiments,

[0103] In the control step, after adjusting to Mode 1, keep the curved surfaces at Point ① and Point ⑤ unchanged, and adjust the curved surface at Point ③ to move up and down. If it is detected that the noise has not reached the current minimum value, continue to adjust the curved surface at Point ③ to move up and down; if it is detected that the noise has reached the current minimum value, keep the curved surfaces at Point ① and Point ③ unchanged, and adjust the curved surface at Point ⑤ to move up and down;

[0104] If it is detected that the noise has not reached the current minimum value at this time, continue to adjust the curved surface at Point ⑤ to move up and down; if it is detected that the noise has reached the current minimum value, control the tongue windward surface 3 to be locked, keep the curved surface of the tongue windward surface unchanged, and control the air conditioner to work.

[0105] Figure 8 Shows the point sequence during the working mode switching of the tongue windward surface, Figure 9 Shows an exploded view of the overall core components of the tongue, including the tongue body 20, the flexible windward surface storage reel, the noise sensor 22, the locking buckle device 27, the flexible tongue windward surface 3, the ejector rod 10, the connecting rod 9, the crank 8, and the motor 7. Figure 10shows the logic block diagram of the adjustable scroll tongue. The specific logic and process are as follows: First, the air conditioner is in the standby state, then it is turned on, and the cross-flow fan starts to work. After the indoor unit runs stably, the controller gets powered on and starts to work. First, it conducts a self-check to ensure the correct initial position. Subsequently, the noise sensor in the air duct starts to detect noise and feeds back the signal to the motor controller. According to the different intervals where the signal values fall, different curved surface setting modes are adopted, that is, the rotation angle of the motor is controlled. Different curved surface mode settings: There are a total of five points, namely ①②③④⑤. The adjustment mode is as follows: First, mode one starts. The heights of ①③⑤ are kept the same, and at the same time, the heights of these three points are adjusted upwards to the maximum height until the noise value reaches the minimum value and stops rotating. If the height is not at the highest position at this time, the next mode - mode two starts. At this time, ① and ⑤ remain stationary, and ③ continues to rise to the top and then moves down to the top, and then returns to the position where mode one stopped. It samples once every 0.01 seconds. The rotation angle of the motor corresponds to different heights. Record the rotation angle at the height where the noise is the smallest in the recorded data, and the motor then rotates to this rotation angle position. Next, it enters mode three. The process of mode three is the same as that of mode two. Finally, the optimal rotation angle of the motor at point ⑤ is determined. When the three groups of rotation angles are determined, the optimal curved surface setting of the scroll tongue's windward surface under the current wind condition is completed; when the windward surface of the scroll tongue is adjusted, as Figure 8 shown in [reference], the locking buckle device 27 will automatically lock to ensure the stability of the scroll tongue structure and prevent the shape of the scroll tongue from changing due to vibration or air flow disturbance during operation. After the above adjustments are completed, the air conditioner enters the normal working state. The curved surface shape of the scroll tongue has been adjusted to the optimal according to the current operating conditions, and the air conditioner continues to operate according to the set mode and wind speed. During the operation of the air conditioner, the noise sensor continuously monitors the noise value to ensure that the curved surface of the scroll tongue's windward surface is always in the optimal state. If it detects that the noise value fluctuates or increases, the system will automatically adjust the curved surface of the scroll tongue's windward surface to ensure that the noise is controlled at the lowest level. When the air conditioner enters the shutdown state, the control system will perform the following operations: The system checks whether the windward surface of the scroll tongue is in the initial position. If the windward surface of the scroll tongue is not in the preset flat state, the motor will automatically adjust the windward surface of the scroll tongue to restore it to the initial flat state. After the curved surface adjustment of the scroll tongue's windward surface is completed, the motor is powered off and remains locked to prevent the change of the scroll tongue's shape during the shutdown process. When the scroll tongue returns to the initial position, the air conditioner completes the shutdown operation and enters the standby state. It is worth mentioning that these five motors are controlled separately, so there are not only the three modes described in this specification, which enhances the flexibility of adjustment.

[0106] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and variations can still be made, and these improvements and variations should also be regarded as within the protection scope of the present invention.

Claims

1. A volute tongue component with an adaptive adjustment function, characterized in that: Comprising: A volute tongue (1), the volute tongue (1) is protrudingly arranged in the air duct (2), and the volute tongue (1) has a volute tongue windward surface (3). A fan (4) is arranged in the air duct (2). Along the axial direction of the fan (4) is the length direction of the volute tongue (1). The volute tongue windward surface (3) has at least one convex position (5) and at least one concave position (6). The convex position (5) protrudes into the air duct (2) relative to the concave position (6), and the height by which the convex position (5) protrudes from the concave position (6) can be adjusted in real time.

2. The volute tongue assembly with an adaptive adjustment function according to claim 1, wherein: There are at least two convex positions (5), and there are also at least two concave positions (6). The bottoms of at least two concave positions (6) are on the same plane, and this plane is the reference plane. And the height by which the convex position (5) protrudes from the reference plane can be adjusted in real time. And on the side of each convex position (5) away from the air duct (2), a motor (7) and a driving component are arranged. Through the motor (7) and the driving component, the height of each convex position (5) can be independently driven to change.

3. The volute tongue assembly with an adaptive adjustment function according to claim 2, wherein: The driving component includes a crank (8), a connecting rod (9), a push rod (10) and a roller (11). The volute tongue (1) includes a volute tongue surface (12). The volute tongue surface (12) includes the volute tongue windward surface (3) and a volute tongue leeward surface (13). The roller (11) is in contact with the volute tongue leeward surface (13). The motor (7) is connected to the crank (8). The crank (8) is connected to one end of the push rod (10) through the connecting rod (9). The other end of the push rod (10) is in contact with the roller (11), so as to lift or retract the volute tongue surface (12) through the roller (11), so that the volute tongue windward surface (3) makes a reciprocating motion relative to the reference plane.

4. The volute tongue assembly with an adaptive adjustment function according to claim 3, wherein: The driving component further includes a chute (14) and a ball (15). The ball (15) is arranged in the chute (14). The push rod (10) is inserted into the ball (15) and can slide in the chute (14) along with the ball (15).

5. The volute tongue assembly with an adaptive adjustment function according to claim 1, wherein: There are multiple convex positions (5), and there are also multiple concave positions (6). And along the axial direction of the fan (4), the convex positions (5) and the concave positions (6) are arranged alternately. The length direction is the arrangement direction of the convex positions (5) and the concave positions (6) of the volute tongue (1).

6. The volute tongue assembly with an adaptive adjustment function according to claim 5, wherein: It further includes a raceway (16) which extends along the length direction of the volute tongue (1). The concave position (6) is supported in the raceway (16) by a support rod (17) and is clamped in the raceway (16) so that the concave position (6) can only move along the extension direction of the raceway (16).

7. The volute tongue assembly with an adaptive adjustment function according to claim 6, characterized in that: The windward surface (3) of the volute tongue is a flexible structure, and a deformable structure (18) is provided at the concave position (6). The deformable structure (18) is connected to a position between the windward surface (3) of the volute tongue at the concave position (6) and the support rod (17); and / or a roller (28) is provided at the bottom of the support rod (17), and the roller (28) is clamped in the raceway (16) to be able to roll in the raceway (16).

8. The volute tongue assembly with an adaptive adjustment function according to claim 3, characterized in that: It further includes a flexible curved surface storage cylinder (19). The flexible curved surface storage cylinder (19) is located on one side of the volute tongue (1) along the length direction, and one end of the volute tongue (1) is wound around the outer periphery of the flexible curved surface storage cylinder (19). The length of the surface of the volute tongue wound on the flexible curved surface storage cylinder (19) changes with the change of the jacking height at the convex position (5).

9. The volute tongue assembly with an adaptive adjustment function according to claim 8, characterized in that: The volute tongue (1) further includes a volute tongue body (20). The volute tongue surface (12), the motor (7), the driving component and the flexible curved surface storage cylinder (19) are all arranged on the volute tongue body (20), and a part of the structure of the flexible curved surface storage cylinder (19) is located inside the volute tongue body (20) to wind the volute tongue surface (12). A part of the structure of the flexible curved surface storage cylinder (19) penetrates to the outside of the volute tongue body (20), and a spiral locking device (21) is wound on the structure of the flexible curved surface storage cylinder (19) that penetrates to the outside of the volute tongue body (20). The spiral locking device (21) can generate an elastic restoring force on the rotation of the flexible curved surface storage cylinder (19).

10. The volute tongue assembly with an adaptive adjustment function according to claim 9, characterized in that: It further includes a noise sensor (22) and a locking buckle device (27). The noise sensor (22) is arranged on the volute tongue body (20) to be able to detect noise, and the protruding heights of multiple convex positions (5) can be independently and adaptively adjusted according to the size of the noise; the locking buckle device (27) is also arranged on the volute tongue body (20) to be able to clamp and position the movement position of the windward surface (3) of the volute tongue.

11. An air conditioner, characterized in that: It includes the volute tongue assembly with an adaptive adjustment function according to any one of claims 1-10.

12. A control method for a scroll tongue assembly with an adaptive adjustment function as described in claim 10, characterized in that: It includes: A detection step of detecting noise through the noise sensor; Control step: when there are 3 convex surface positions (5), there are 2 concave surface positions (6). Along the length direction of the volute tongue (1), multiple convex surface positions (5) and multiple concave surface positions (6) are successively point position ①, point position ②, point position ③, point position ④ and point position ⑤. Adjust to mode one so that the curved surfaces at point position ①, point position ③ and point position ⑤ move to the height with the minimum noise simultaneously.

13. The control method according to claim 12, wherein: In the control step, after adjusting to mode one, keep the curved surfaces at point position ① and point position ⑤ stationary, and adjust the curved surface at point position ③ to move up and down. If it is detected that the noise has not reached the current minimum value, continue to adjust the curved surface at point position ③ to move up and down; if it is detected that the noise reaches the current minimum value, keep the curved surfaces at point position ① and point position ③ stationary, and adjust the curved surface at point position ⑤ to move up and down; If it is detected that the noise has not reached the current minimum value at this time, continue to adjust the curved surface at point position ⑤ to move up and down; if it is detected that the noise reaches the current minimum value, lock the windward surface (3) of the volute tongue, keep the curved surface of the windward surface of the volute tongue unchanged, and control the air conditioner to operate.

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