A humidifying component of a heating, ventilation, and air conditioning (HVAC) unit

Abstract

The present invention relates to the technical field of heating, ventilation and air conditioning, and specifically relates to a humidifying component of a heating, ventilation and air conditioning unit, including: a housing, an air outlet hole is opened on the rear end face of the housing, an air inlet component is installed on the front end face of the housing, a main air duct is arranged in the inner cavity of the housing, a secondary air duct is arranged in the inner cavity of the housing parallel to the main air duct, a connecting pipe is installed on the end face of the main air duct pointing to the air inlet hole, one end of an auxiliary pipe is connected to the end faces of the connecting piece and the connecting pipe, a nozzle is rotatably arranged in a placement groove, and a driving mechanism is arranged on the outer wall of the main air duct. By arranging a spray head on the inner wall of the main air duct and sucking the residual liquid into the secondary air duct through the secondary air duct with a diameter smaller than that of the main air duct and discharging it, the present invention can not only effectively improve the mixing effect of air and water mist, but also adsorb and carry out the liquid on the inner wall of the main air duct through the air flow in the secondary air duct, thereby avoiding moisture remaining in the main air duct, improving the overall cooling efficiency of the unit and the long-term stable operation of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of heating, ventilation and air conditioning, and particularly to a humidifying component of a heating, ventilation and air conditioning unit. Background Art

[0002] In the heating, ventilation and air conditioning industry, the design and optimization of humidifying components are crucial for improving air treatment efficiency and enhancing user experience. In the humidifying and cooling processes of traditional heating, ventilation and air conditioning units, problems such as uneven air flow, liquid residue, and low cooling efficiency are often faced. To solve these problems, existing technologies have been continuously innovated and improved, aiming to achieve more efficient and reliable air flow management and humidifying and cooling effects.

[0003] The humidifying components of traditional heating, ventilation and air conditioning units usually adopt fixed air duct structures and nozzle arrangements, resulting in uneven air flow distribution. Especially in environments with high air volume requirements, vortices and air flow dead zones are likely to occur, affecting the air treatment effect. In addition, due to the liquid residue problem on the inner wall of the air duct, not only the cooling efficiency is reduced, but also equipment failures and increased maintenance costs may be caused. Summary of the Invention

[0004] The purpose of the present invention is to provide a humidifying component of a heating, ventilation and air conditioning unit to solve the problems raised in the above background art. The humidifying component of the present invention optimizes the air flow distribution by setting an air inlet component with a large air scoop and a small air scoop, avoiding the problems of vortices and air flow dead zones. At the same time, the parallel setting of the main air duct and the auxiliary air duct and the connection design of the bridging pipe achieve the coordinated distribution of air flow and the effective guidance of cooling liquid. In addition, the deformation groove and placement groove designs on the connecting pipe, as well as the precise control of the driving mechanism, enable the angles of the nozzles and the diameters of the connecting pipes to be flexibly adjusted, thereby further improving the cooling efficiency and air treatment effect.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A humidifying component of a heating, ventilation and air conditioning unit, comprising: a housing, an air inlet component, a main air duct, an auxiliary air duct, a bridging pipe, a connecting pipe, a connecting piece, an auxiliary pipe, a nozzle and a driving mechanism;

[0006] An air inlet hole is provided on the front end face of the housing, and an air outlet hole is provided on the rear end face of the housing. The air outlet hole corresponds to the air inlet hole; the air inlet assembly is installed on the front end face of the housing and corresponds to the air inlet hole; the main air duct is arranged in the inner cavity of the housing and is located between the air inlet hole and the air outlet hole; the auxiliary air duct is arranged in the inner cavity of the housing in parallel with the main air duct and is located between the air inlet hole and the air outlet hole; both ends of the bridging pipe are respectively connected to the main air duct and the auxiliary air duct; the connecting pipe is installed on the end face of the main air duct pointing to the air inlet hole, and a plurality of deformation grooves are provided on the circumferential outer wall of the connecting pipe. A plurality of placement grooves are provided on the circumferential outer wall of the connecting pipe, and the plurality of placement grooves and the plurality of deformation grooves are arranged alternately; the connecting member is arranged in the deformation groove; one end of the auxiliary pipe is connected to the end faces of the connecting member and the connecting pipe, and the other end of the auxiliary pipe is arranged on the inner wall of the housing and corresponds to the air inlet hole; the nozzle is rotatably arranged in the placement groove; the driving mechanism is arranged on the outer wall of the main air duct.

[0007] Preferably, the diameter of the main air duct is larger than that of the auxiliary air duct.

[0008] Preferably, the shape of the deformation groove is triangular, which can guide the connecting pipe to undergo axial deformation when an external force is applied.

[0009] Preferably, an annular groove is provided on the inner wall of the main air duct, and the position of the bridging pipe corresponds to that of the annular groove.

[0010] Preferably, the air inlet assembly includes a large air scoop and small air scoops. One to four small air scoops are arranged around each large air scoop.

[0011] Preferably, a seal is provided between the nozzle and the placement groove.

[0012] Preferably, each main air duct corresponds to at least one auxiliary air duct, and at most four auxiliary air ducts can be symmetrically arranged around the main air duct.

[0013] Preferably, the driving mechanism includes: a fixing ring, a guide post, a shaft roller, a driving ring, a top block and a motor; the fixing ring is arranged on the outer wall of the main air duct; the number of the guide posts is at least three, and at least three guide posts are arranged on the fixing ring along the axial direction of the main air duct; the number of the shaft rollers corresponds to that of the guide posts, the shaft rollers are rotatably arranged on the guide posts, and threads are provided on the outer walls of the shaft rollers; the driving ring is arranged between at least three shaft rollers, threads are provided on the outer wall of the driving ring and are engaged with the threads on the outer walls of the shaft rollers; one end of the top block is hinged to the outer wall of the main air duct; the motor is arranged on the fixing ring and is connected to one of the shaft rollers.

[0014] Preferably, the inner wall of the driving ring is of an inclined structure.

[0015] Preferably, the top block is in a triangular structure, and the tip of the top block is hinged to the outer wall of the main air duct, and the tip of the top block points in the direction of the air outlet hole.

[0016] The humidifying component of a heating, ventilation and air conditioning unit proposed by the present invention has the beneficial effects that:

[0017] 1. By arranging a nozzle on the inner wall of the main air duct and sucking the residual liquid into the auxiliary air duct with a diameter smaller than that of the main air duct and discharging it, this design can not only effectively improve the mixing effect of air and water mist, but also adsorb and carry out the liquid on the inner wall of the main air duct through the air flow in the auxiliary air duct, thus avoiding the retention of moisture in the main air duct, improving the overall cooling efficiency of the unit and the long-term stable operation of the equipment.

[0018] 2. The present invention uses a driving mechanism to control the diameter change at the connecting pipe, so as to increase the air flow rate without changing the air source, and then enhance the heat exchange efficiency of the air. A higher wind speed helps to carry away heat more quickly, thus improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic diagram of the air inlet assembly of the present invention;

[0021] Figure 3 is a first partial schematic diagram of the present invention;

[0022] Figure 4 is a schematic diagram of the main air duct and the auxiliary air duct of the present invention;

[0023] Figure 5 is a second partial schematic diagram of the present invention;

[0024] Figure 6 is a schematic diagram of the driving mechanism of the present invention;

[0025] Figure 7 is a side view of the auxiliary air duct of the present invention.

[0026] In the figure: 111, housing; 112, installation groove; 12, mounting plate; 13, fixing member; 2, air inlet assembly; 21, large air scoop; 22, small air scoop; 3, main air duct; 41, auxiliary air duct; 42, connection hole; 43, plug; 44, wind baffle; 5, bridge connecting pipe; 61, connecting pipe; 62, deformation groove; 63, placement groove; 64, annular groove; 7, connecting member; 8, auxiliary pipe; 91, nozzle; 92, seal; 10, driving mechanism; 101, fixing ring; 102, guide post; 103, shaft roller; 104, driving ring; 105, top block; 106, motor; 11, water pipe. DETAILED DESCRIPTION OF THE INVENTION

[0027] 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. 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.

[0028] Please refer to Figures 1-7 , the present invention provides a technical solution for a humidifying component of a heating, ventilation and air conditioning (HVAC) unit. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and the specific work is as follows. A humidifying component of a heating, ventilation and air conditioning (HVAC) unit includes: a housing 111, an air inlet component 2, a main air duct 3, a sub-air duct 41, a bridge connecting pipe 5, a connecting pipe 61, a connecting member 7, an auxiliary pipe 8, a nozzle 91 and a driving mechanism 10.

[0029] The front end face of the housing 111 has a mounting groove 112. An installation plate 12 is placed in the mounting groove 112. The installation plate 12 and the mounting groove 112 are connected by a fixing member 13, so that the installation plate 12 is fixed in the mounting groove 112. The air inlet assembly 2 and the installation plate 12 are detachably connected. The number of the air inlet assemblies 2 can be changed according to needs, and different components such as the installation plate 12 can be matched. An air inlet hole is provided on the front end face of the housing 111, and an air outlet hole is provided on the rear end face of the housing 111. The air outlet hole corresponds to the air inlet hole. This arrangement ensures that air can enter from the air inlet hole along a specified path, pass through internal components such as air ducts, and then be discharged from the air outlet hole, which helps to form a streamlined air flow, optimize the air flow path, and at the same time ensure the maximization of the cooling efficiency. In addition, the corresponding design of the air inlet hole and the air outlet hole ensures the symmetry of the air flow direction and the internal components, reducing the air flow disorder and resistance. The air inlet assembly 2 is installed on the front end face of the housing 111 and corresponds to the air inlet hole, making the most of the outside air entering the air conditioner unit. The air inlet assembly 2 includes a large air scoop 21 and small air scoops 22. One to four small air scoops 22 are arranged around each large air scoop 21. The large air scoop 21, as the main part of the air inlet assembly 2, is responsible for guiding a large amount of external air into the unit. Its design usually has a relatively large opening area to increase the air intake volume, and guides the air flow through the shape of the air scoop, reducing the air resistance and improving the air inlet efficiency. The small air scoops 22 are arranged around the large air scoop 21 and are responsible for assisting the air inlet and introducing additional air flow on the basis of the large air scoop 21. The function of the small air scoops 22 is to optimize the air flow distribution and prevent air from forming eddies or air flow dead corners around the large air scoop 21, so as to achieve a more uniform air inlet effect. The one to four small air scoops 22 arranged around the large air scoop 21 provide a flexible configuration method. According to the actual air inlet requirements, designers can select an appropriate number of small air scoops 22 for matching. For environments that require a high air intake volume, four small air scoops 22 can be configured to ensure the full guidance and capture of the air flow. In occasions with lower air inlet requirements, the number of small air scoops 22 can be reduced to simplify the design and reduce costs. The main air duct 3 is arranged in the inner cavity of the housing 111 and is located between the air inlet hole and the air outlet hole, ensuring that after the air enters the main air duct 3 from the air inlet hole, it flows along the main air duct 3 and is finally discharged through the air outlet hole. The design of the main air duct 3 directly determines the speed and direction of the air flow. Its diameter, length and position should be accurately designed according to the cooling requirements of the equipment to ensure the stability of the air flow and the cooling efficiency. The auxiliary air duct 41 is arranged in the inner cavity of the housing 111 parallel to the main air duct 3 and is located between the air inlet hole and the air outlet hole. The auxiliary air duct 41, as an auxiliary channel of the main air duct 3, is arranged in the inner cavity of the housing 111 in parallel to ensure the coordination of the air flow between the main air duct 3 and the auxiliary air duct 41. The auxiliary air duct 41 is designed as an air duct with a smaller diameter and is used for additional functions such as air flow in specific areas or handling condensate water. In the inner cavity of the equipment, multiple main air ducts 3 are arranged side by side, and the air flow and liquid are distributed between two adjacent main air ducts 3 through a common auxiliary air duct 41.Such an arrangement can reduce the number of secondary air ducts 41, optimize the utilization rate of the internal space, and at the same time ensure the efficient cooperation of the air flow in each main air duct 3 and the secondary air duct 41. Four connecting holes 42 are provided on the outer wall of the secondary air duct 41. Both ends of the bridge connecting pipe 5 are respectively connected to the main air duct 3 and the secondary air duct 41. The bridge connecting pipe 5 is detachably installed in the connecting hole 42. When the bridge connecting pipe 5 is not connected to the position corresponding to the connecting hole 42, a plug 43 is provided in the connecting hole 42. At the same time, a wind baffle 44 is provided at one end of the plug 43 located in the secondary air duct 41. The required air volume is different when the secondary air duct 41 is connected to one bridge connecting pipe 5 and four bridge connecting pipes 5. The wind baffle 44 is used to control the air volume in the secondary air duct 41, so that under the condition of the same air source, the air volume of all secondary air ducts 41 is uniform. Through the design of the bridge connecting pipe 5, the Venturi effect can be utilized to introduce the residual liquid in the main air duct 3 into the secondary air duct 41, realizing better mixing of air and cooling liquid, improving the cooling effect and discharging accumulated water. The connection design of the bridge connecting pipe 5 must ensure seamless connection of the air flow to avoid energy loss or air flow disturbance. The connecting pipe 61 is installed on the end face of the main air duct 3 pointing to the air inlet hole. A number of deformation grooves 62 are provided on the annular outer wall of the connecting pipe 61. A number of placement grooves 63 are provided on the annular outer wall of the connecting pipe 61. The number of placement grooves 63 and a number of deformation grooves 62 are arranged alternately. These deformation grooves 62 allow the connecting pipe 61 to deform under force to adjust the diameter of the pipe, while the placement grooves 63 are used to fix the nozzle 91 or other small components, such as rubber plugs, etc. The connecting piece 7 is arranged in the deformation groove 62. One end of the auxiliary pipe 8 is connected to the connecting piece 7 and the end face of the connecting pipe 61. The other end of the auxiliary pipe 8 is arranged on the inner wall of the housing 111 and corresponds to the air inlet hole. The auxiliary pipe 8 can deform. At the same time, during the process of the diameter of the connecting pipe 61 becoming smaller, the part of the auxiliary pipe 8 connected to the housing 111 remains in a tubular structure, and the position connected to the connecting pipe 61 deforms uniformly to avoid the air flow concentrating in one area to generate resistance or eddy current. The nozzle 91 is rotatably arranged in the placement groove 63. During the process of the connecting pipe 61 deforming and the diameter becoming smaller, the angle of the nozzle 91 pointing to the air inlet direction becomes larger, improving the mixing effect of air and liquid. The driving mechanism 10 is arranged on the outer wall of the main air duct 3. The nozzle 91 is connected to an external pressure water source and has a control unit.

[0030] The diameter of the main air duct 3 is larger than that of the secondary air duct 41. As the main air flow channel in the equipment, the diameter of the main air duct 3 is larger than that of the secondary air duct 41, which can ensure that the equipment can handle a larger air flow rate and meet the high-efficiency cooling requirements. The larger diameter of the main air duct 3 can not only reduce the air flow resistance, but also maintain the air flow stability and avoid the occurrence of turbulent flow phenomena. The secondary air duct 41 is mainly used for auxiliary functions, such as guiding residual liquid or adjusting air flow. The smaller diameter can help maintain the high speed of the air flow, thereby improving the discharge efficiency of the air flow and condensate.

[0031] The shape of the deformation groove 62 is triangular, which can guide the connecting pipe 61 to undergo axial deformation when an external force is applied. The sharp corner of the triangular deformation groove 62 helps to precisely control the position and direction of deformation, ensuring uniform stress distribution during the deformation process. This design not only optimizes the stability of the connecting pipe 61 under compression but also ensures that the pipeline maintains a certain rigidity during deformation, avoiding local fracture or excessive deformation and ensuring the reliability of equipment operation.

[0032] An annular groove 64 is formed on the inner wall of the main air duct 3, and the position of the bridge connecting pipe 5 corresponds to that of the annular groove 64. The air flow in the main air duct 3 has a certain traction effect on the residual liquid. As the air flow moves along the pipeline, it generates friction and shear forces at the pipe wall, causing the liquid to move in the direction of the air flow. Since the air flow is concentrated in the center of the pipeline, the air flow velocity in the edge area is relatively low, and the liquid is more easily guided to the outer wall and flows along the pipe wall. The annular groove 64 has a relatively deep size and a certain roughness or viscosity on its surface, and the residual liquid will be effectively retained, preventing the liquid from continuing to spread along the inner wall of the main air duct 3. The annular groove 64 can play a role in collecting condensed water or other liquids, preventing them from further accumulating or flowing to other parts of the main air duct 3. At this time, the bridge connecting pipe 5 connected here attracts the retained liquid into the auxiliary air duct 41.

[0033] The connecting piece 7 is made of an elastic material, and the elastic material has good sealing performance, which can ensure that the sealing performance of the connection point is not affected during the deformation process of the connecting pipe 61.

[0034] A seal 92 is provided between the nozzle 91 and the placement groove 63. Setting the seal 92 between the nozzle 91 and the placement groove 63 can effectively prevent the leakage of liquid or gas, ensuring the tightness of the system. The seal 92 can provide a stable sealing pressure, and even during the rotation or adjustment of the nozzle 91, it can still maintain the sealing effect, avoiding uneven cooling or reduced energy efficiency caused by uneven spraying pressure.

[0035] Each main air duct 3 corresponds to at least one auxiliary air duct 41, and at most four auxiliary air ducts 41 can be symmetrically arranged around the main air duct 3 to ensure that the air flow or condensate in the main air duct 3 can be fully guided into the auxiliary air duct 41 for further treatment. By symmetrically arranging the auxiliary air ducts 41 around the main air duct 3, the air flow distribution can be optimized to ensure the air flow balance within the entire system. The design of arranging at most four auxiliary air ducts 41 can improve the air flow processing capacity. Especially during high-load operation, additional air flow or liquid can be processed in parallel through multiple auxiliary air ducts 41 to prevent local overload of the system.

[0036] The driving mechanism 10 includes: a fixed ring 101, guide columns 102, shaft rollers 103, a driving ring 104, a top block 105, and a motor 106. The fixed ring 101 is disposed on the outer wall of the main air duct 3. The fixed ring 101 serves as the basic structure of the driving mechanism 10 and is firmly installed on the outer wall of the main air duct 3. Its main function is to provide a stable installation platform for components such as the guide columns 102 and shaft rollers 103, ensuring the structural stability of the entire driving mechanism 10. The number of guide columns 102 is at least three. At least three guide columns 102 are arranged on the fixed ring 101 along the axial direction of the main air duct 3. The guide columns 102 play a role in support and guidance. Arranged along the axial direction of the main air duct 3 on the fixed ring 101, the design of at least three guide columns 102 can ensure that the driving ring 104 remains stable and symmetric during upward and downward movement, avoiding tilting or jamming caused by uneven force. The number of shaft rollers 103 corresponds to that of the guide columns 102. The shaft rollers 103 are rotatably arranged on the guide columns 102. The outer wall of the shaft roller 103 is provided with threads, and the threads on the outer wall of the shaft roller 103 are engaged with the threads of the driving ring 104, enabling the driving ring 104 to move up and down along the guide columns 102. The design of the shaft rollers 103 needs to ensure low friction to reduce wear during operation and improve the efficiency of the driving system. The driving ring 104 is disposed between at least three shaft rollers 103. The outer wall of the driving ring 104 is provided with threads and is engaged with the threads on the outer wall of the shaft rollers 103. One end of the top block 105 is hinged to the outer wall of the main air duct 3. The motor 106 is disposed on the fixed ring 101 and is connected to one of the guide columns 102. The shaft roller 103 on the guide column 102 connected to the motor 106 is fixedly connected to the guide column 102.

[0037] The inner wall of the driving ring 104 has an inclined structure. The inclined design of the inner wall of the driving ring 104 is to optimize the contact and extrusion effect with the top block 105. The inclined inner wall can gradually increase the extrusion force on the top block 105, ensuring that the top block 105 can be smoothly extruded when the driving ring 104 moves upward.

[0038] The top block 105 has a triangular structure, and the tip part of the top block 105 is hinged to the outer wall of the main air duct 3, and the tip of the top block 105 points in the direction of the air outlet hole. The triangular tip part is hinged to the outer wall of the main air duct 3, which can effectively use a small force to achieve a large deformation. When the driving ring 104 moves upward, the triangular structure of the top block 105 allows the two sides to be evenly stressed and contract inward, thereby reducing the diameter of the connecting pipe 61.

[0039] Working principle: The wind source can be a fan to provide a pressure wind source for the secondary air intake of the air conditioning unit. At the same time, several nozzles 91 are connected to the external pressure water source. The secondary air intake enters the main air duct 3 and the auxiliary air duct 41 through the large air scoop 21 and the small air scoop 22. The nozzle 91 sprays water mist into the main air duct 3. After the water mist is fully mixed with the air, the air is guided to the cooling area of the unit. At this time, the air flow rate in the auxiliary air duct 41 is greater than the air flow rate in the main air duct 3. When the liquid remaining on the inner wall of the main air duct 3 flows with the air to the annular groove 64, it is sucked into the auxiliary air duct 41 by the bridge pipe 5, mixed with the air in the auxiliary air duct 41, and discharged to the cooling area. Area, to avoid the problem of liquid residue in the main air duct 3. When it is necessary to improve the cooling efficiency or to respond quickly to temperature changes, the motor 106 is controlled to rotate to rotate the corresponding shaft roller 103. The threads of the outer wall of the shaft roller 103 and the outer wall of the driving ring 104 are used to move the driving ring 104 toward the side of the air inlet, and the top block 105 is squeezed to reduce the diameter of the connecting pipe 61. Due to the smaller diameter of the connecting pipe 61, the wind speed will increase, which can help to take away heat more quickly and improve the cooling efficiency. A higher wind speed can allow air to pass through the heat exchanger in a shorter time, thereby increasing the heat exchange per unit time and enhancing the cooling effect.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A humidifying component of a heating, ventilation and air conditioning unit, characterized in that, Comprising: A housing (111), a front end face of the housing (111) is provided with an air inlet hole, a rear end face of the housing (111) is provided with an air outlet hole, and the air outlet hole corresponds to the air inlet hole; An air inlet assembly (2), the air inlet assembly (2) is installed on the front end face of the housing (111) and corresponds to the air inlet hole; A main air duct (3), the main air duct (3) is disposed in the inner cavity of the housing (111) and is located between the air inlet hole and the air outlet hole; A sub-air duct (41), the sub-air duct (41) is disposed in the inner cavity of the housing (111) parallel to the main air duct (3) and is located between the air inlet hole and the air outlet hole; A bridge connecting pipe (5), two ends of the bridge connecting pipe (5) are respectively connected to the main air duct (3) and the sub-air duct (41); A connecting pipe (61), the connecting pipe (61) is installed on an end face of the main air duct (3) pointing to the air inlet hole, a plurality of deformation grooves (62) are formed on an outer circumferential wall of the connecting pipe (61), a plurality of placing grooves (63) are formed on the outer circumferential wall of the connecting pipe (61), and the plurality of placing grooves (63) and the plurality of deformation grooves (62) are arranged in an interlaced manner; A connecting member (7), the connecting member (7) is disposed in the deformation groove (62); An auxiliary pipe (8), one end of the auxiliary pipe (8) is connected to an end face of the connecting member (7) and the connecting pipe (61), and the other end of the auxiliary pipe (8) is disposed on an inner wall of the housing (111) and corresponds to the air inlet hole; A nozzle (91), the nozzle (91) is rotatably disposed in the placing groove (63); A driving mechanism (10), the driving mechanism (10) is disposed on an outer wall of the main air duct (3); The driving mechanism (10) includes: A fixing ring (101), the fixing ring (101) is disposed on the outer wall of the main air duct (3); Guide columns (102), the number of the guide columns (102) is at least three, and at least three of the guide columns (102) are axially disposed on the fixing ring (101) along the main air duct (3); Shaft rollers (103), the number of the shaft rollers (103) corresponds to that of the guide columns (102), the shaft rollers (103) are rotatably disposed on the guide columns (102), and an outer wall of the shaft roller (103) is provided with a thread; A driving ring (104), the driving ring (104) is disposed between at least three of the shaft rollers (103), an outer wall of the driving ring (104) is provided with a thread and meshes with the thread on the outer wall of the shaft roller (103); A top block (105), one end of the top block (105) is hinged to the outer wall of the main air duct (3); A motor (106), the motor (106) is disposed on the fixing ring (101) and is connected to one of the shaft rollers (103).

2. The humidifying component of a heating, ventilation and air conditioning unit according to claim 1, characterized in that: The diameter of the main air duct (3) is larger than that of the sub-air duct (41).

3. The humidifying component of a heating, ventilation and air conditioning unit according to claim 2, wherein: The shape of the deformation groove (62) is triangular, which can guide the connecting pipe (61) to axially deform when an external force is applied.

4. The humidifying component of a heating, ventilation and air conditioning unit according to claim 3, characterized in that: An annular groove (64) is formed on an inner wall of the main air duct (3), and the bridge connecting pipe (5) corresponds to the position of the annular groove (64).

5. The humidification component of a heating, ventilation, and air conditioning unit according to claim 4, wherein: The air inlet assembly (2) includes a large air scoop (21) and small air scoops (22), and one to four small air scoops (22) are arranged around each large air scoop (21).

6. The humidifying component of a heating, ventilation and air conditioning unit according to claim 5, characterized in that: A seal (92) is provided between the nozzle (91) and the placement groove (63).

7. The humidifying component of a heating, ventilation, and air conditioning unit according to claim 6, characterized in that: Each main air duct (3) corresponds to at least one sub-air duct (41), and at most four sub-air ducts (41) can be symmetrically arranged around the main air duct (3).

8. The humidifying component of a heating, ventilation and air conditioning unit according to claim 7, characterized in that: The inner wall of the drive ring (104) has an inclined structure.

9. The humidifying component of a heating, ventilation and air conditioning unit according to claim 8, characterized in that: The top block (105) has a triangular structure, and the tip of the top block (105) is hinged to the outer wall of the main air duct (3), and the tip of the top block (105) points in the direction of the air outlet hole.

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