Energy-saving heating and ventilation heat supply outdoor unit with anti-frosting function

Abstract

The invention discloses an energy-saving heating and ventilation heat supply outdoor unit with an anti-frosting function, and particularly relates to the technical field of split type outdoor units, the energy-saving heating and ventilation heat supply outdoor unit comprises an outer rack and an evaporator, a water pan is installed at the bottom of the evaporator, and an anti-frosting assembly used for collecting and evaporating condensate water is jointly connected between the outer rack and the water pan. A comprehensive assembly is arranged in the frost prevention assembly, and the comprehensive assembly is used for driving the frost prevention assembly to reciprocate up and down along an air outlet of a shutter in the outer rack; through the arrangement of the water absorption cotton column, the axial flow impeller cylinder, the evaporator and the outer rack, the water absorption cotton column is used for absorbing condensate water, so that the condensate water is diffused on the surface of the water absorption cotton column, and air flow generated by the axial flow impeller cylinder evaporates the condensate water on the surface of the water absorption cotton column and discharges the condensate water out of the outer rack; the heat absorption effect of evaporation of condensate water helps maintain the temperature of the evaporator, the overall operation efficiency of the outdoor unit is improved, and energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of split external units, and particularly relates to an energy-saving HVAC heating external unit with a defrosting function. Background Art

[0002] The heating external unit, also known as the outdoor unit, is a core component of the heat pump system. It is usually installed outdoors and is responsible for extracting heat from the external environment and transferring the heat to the indoor through the refrigerant cycle. It can be used as the heat source of the heating system or as the cold source of the air conditioning system in summer. Since the temperature of the evaporator is usually lower than the ambient temperature, when water vapor encounters the cold surface of the evaporator, it will quickly cool down below the dew point temperature, thus forming frost. Therefore, electric heating elements are installed on the evaporator. When defrosting is required, the electric heating elements are powered on to generate heat and melt the frost layer to ensure the normal circulation of air inside and outside the external unit. During the defrosting process of the electric heating elements, the water vapor contained in the air will gradually increase, increasing the humidity of the internal environment of the external unit and easily generating condensed water on the surface of the evaporator. The generated condensed water will flow downward along the fins of the evaporator under the action of gravity, and then the drip tray at the bottom of the evaporator will collect the flowing condensed water. However, as the condensed water in the drip tray increases, when the high-humidity air passes through the evaporator, it will carry more water vapor, resulting in uneven airflow due to the accumulation on the surface of the evaporator, thus accelerating the formation of frost on the surface of the evaporator, forming a heat insulation layer on the surface of the evaporator, increasing heat loss, and affecting the overall operating efficiency of the external unit and increasing energy consumption. Summary of the Invention

[0003] The purpose of the present invention is to provide an energy-saving HVAC heating external unit with a defrosting function to solve the above deficiencies in the technology.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An energy-saving HVAC heating external unit with a defrosting function, including an outer frame and an evaporator. A water receiving tray is installed at the bottom of the evaporator. A defrosting component for collecting and evaporating condensed water is jointly connected between the outer frame and the water receiving tray. A comprehensive component is arranged inside the defrosting component, and the comprehensive component is used to drive the defrosting component to reciprocate up and down along the louver air outlet inside the outer frame to ensure that the condensed water is quickly discharged at different positions inside the outer frame. A wind guiding component is jointly connected between the inside of the outer frame and the defrosting component, and the wind guiding component is used to guide the airflow generated inside the defrosting component so that the condensed water inside the defrosting component is evaporated and discharged through the louver air outlet inside the outer frame.

[0005] Preferably, the frost prevention component includes a water receiving tank installed on the inner bottom wall of the outer frame and communicating with the inside of the water receiving tray. The water receiving tank is used to quickly collect the condensed water generated in the water receiving tray. The top end of the water receiving tank is rotatably connected with a receiving tray. The top end of the receiving tray is inserted with a water-absorbing cotton column, and one end of the water-absorbing cotton column penetrates through the receiving tray and is located inside the water receiving tank. One side of the outer frame close to the water receiving tank is fixedly connected with a first servo motor, and the top end of the first servo motor is installed with an axial flow impeller cylinder matched with the water-absorbing cotton column. The water-absorbing cotton column is used to suck out the condensed water inside the water receiving tank and cover the surface of the water-absorbing cotton column, increasing the evaporation range of the condensed water on the surface of the water-absorbing cotton column by the axial flow impeller cylinder.

[0006] Preferably, the comprehensive component includes a shell frame fixedly connected to the top of the water receiving tank and a bottom support fixedly connected inside the water receiving tank. A worm gear is jointly connected between the bottom support and the receiving tray. A worm meshing with the worm gear is rotatably connected inside the shell frame. One end of the shell frame is fixedly connected with a second servo motor, and the second servo motor is used to drive the worm to rotate. A synchronous lifting component matched with the worm gear and the receiving tray is arranged inside the water receiving tank, and the synchronous lifting component is used to realize the up-and-down reciprocating movement of the water-absorbing cotton column during rotation.

[0007] Preferably, the air guiding component includes a mounting frame installed inside the outer frame, two air guiding plates symmetrically connected between the mounting frame and the shell frame. Air guiding grooves are formed on the opposite sides of the two air guiding plates. A horn-shaped structure is formed between the two air guiding grooves and the two air guiding plates. One side of the air guiding plate close to the water-absorbing cotton column is connected with a contact plate, and the contact plate is set as an arc-shaped structure.

[0008] Preferably, a centering column is movably connected between the air guiding plate and the shell frame. A stabilizing column is fixedly connected to the side of the air guiding plate away from the centering column. The top end of the stabilizing column and the top of the mounting frame are jointly connected with an adjusting frame. A plurality of threaded holes are formed at the top end of the mounting frame. A screw hole is formed at the top end of the adjusting frame. An adjusting bolt is screwed on the top of the adjusting frame, and the adjusting bolt is screwed into the internal threaded hole corresponding to the screw hole through the screw hole.

[0009] Preferably, the synchronous lifting component includes a lifting platform fixedly connected inside the water receiving tank, and the top of the lifting platform is set as an inclined structure. A connecting block is installed inside the receiving tray. A sliding groove for the connecting block to move is formed on the outside of the water-absorbing cotton column. One end of the water-absorbing cotton column close to the lifting platform is fixedly connected with a support seat. A lifting taper rod is fixedly connected to the bottom of the support seat, and the bottom end of the lifting taper rod is located on the top of the lifting platform. A guiding rail ring for guiding the lifting taper rod to move is fixedly connected to the top end of the lifting platform.

[0010] Preferably, a threaded rod is screwed to the top of the water-absorbing cotton column. A limiting rod is connected between the threaded rod and the mounting frame. A guiding groove for the reciprocating insertion and extraction of the limiting rod is formed at the top of the threaded rod. A return spring is connected between the outer part of the limiting rod and the outer part of the threaded rod.

[0011] Preferably, a mounting column is fixedly connected to the outside of the support base. A blade is hinged to the outside of the mounting column, and the blade is used to drive the condensed water around the water-absorbing cotton column to flow.

[0012] In the above technical solution, the technical effects and advantages provided by the present invention are as follows: Through the settings of the water-absorbing cotton column, the axial-flow impeller cylinder, the evaporator and the outer frame, the water-absorbing cotton column is used to absorb the condensed water, so that the condensed water diffuses on the surface of the water-absorbing cotton column. Then, the airflow generated by the axial-flow impeller cylinder evaporates the condensed water on the surface of the water-absorbing cotton column and discharges it from the inside of the outer frame. Therefore, during the evaporation process of the liquid condensed water, heat will be absorbed, and this part of the heat comes from the surface or the surrounding environment of the evaporator. Therefore, during the evaporation process of the condensed water, the surface temperature of the evaporator is slightly increased, and the heat absorption effect of the evaporation of the condensed water helps to maintain the temperature of the evaporator, thereby inhibiting the formation of frost layers and improving the overall operating efficiency of the outdoor unit and reducing energy consumption. Through the settings of the overall components, the axial-flow impeller cylinder, the water-absorbing cotton column and the evaporator, the rotation of the water-absorbing cotton column enables different positions on the surface to come into contact with the airflow in turn. The mechanical force generated during the rotation of the water-absorbing cotton column distributes the water more evenly in the water-absorbing cotton column. The entire surface of the water-absorbing cotton column is used for evaporation, increasing the effective evaporation area, making the evaporation rates of all parts consistent, accelerating the evaporation speed of the condensed water, reducing the water vapor in the air around the evaporator, and helping to maintain the overall heat exchange performance of the evaporator, further preventing frosting due to too low temperature locally. Through the settings of the air guide plate, the water-absorbing cotton column, the axial-flow impeller cylinder, the air guiding groove and the evaporator, the air guide plate and the contact plate are used to guide and convey the airflow around them, enabling the airflow to fully contact all parts of the water-absorbing cotton column, ensuring that the condensed water adsorbed at each place on the water-absorbing cotton column can be affected by the airflow, improving the effective utilization of the airflow, accelerating the evaporation of the condensed water, and timely taking away the evaporated water vapor, so that the airflow can continuously contact the surface of the water-absorbing cotton column, maintaining a low humidity state of the air around the water-absorbing cotton column, and thus the continuous airflow update provides good conditions for the further evaporation of the condensed water. Through the settings of the mounting frame, the air guide plate, the water-absorbing cotton column, the stabilizing column and the adjusting frame, the angle between the air guide plate and the water-absorbing cotton column is adjusted, so that a favorable flow field is formed between the air guide plate and the water-absorbing cotton column, which helps to break the air boundary layer on the surface of the water-absorbing cotton column, making the contact between the airflow and the water-absorbing cotton column more sufficient, reducing the air barrier that hinders the evaporation of water, and further improving the discharge rate of the condensed water. The present invention, through the settings of the co-lifting component, the water-absorbing cotton column, the comprehensive component and the axial-flow impeller cylinder, is conducive to maintaining a rotational movement state and an upward movement state between the water-absorbing cotton column and the air guide plate, further enhancing the contact between different positions on the surface of the water-absorbing cotton column and the air flow, facilitating the formation of a dynamic flow environment for the air around the water-absorbing cotton column, frequently updating the air layer in contact with the surface of the water-absorbing cotton column by the air flow, being able to provide a better evaporation gradient for the condensed water on the surface of the water-absorbing cotton column, improving the evaporation efficiency, and further enhancing the overall operating efficiency of the outdoor unit; Through the settings of the water receiving tank, the water-absorbing cotton column, the mounting column and the comprehensive component in the present invention, the rotation of the blades is used to stratify and stir the water near the support base, increasing the fluidity of the water in the water receiving tank, preventing the water in the water receiving tank from standing still for a long time, which will form a "water film" near the water-absorbing cotton column and hinder the water absorption of the water-absorbing cotton column, thereby maintaining the moisture absorption performance of the water-absorbing cotton column. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0014] Figure 1 Schematic diagram of the overall structure of the outer frame of the present invention; Figure 2 Schematic diagram of the structure of the axial-flow impeller cylinder of the present invention; Figure 3 Schematic diagram of the structure of the water-absorbing cotton column of the present invention; Figure 4 Schematic diagram of the structure of the worm of the present invention; Figure 5 Schematic diagram of the structure of the receiving tray of the present invention; Figure 6 For the present invention Figure 5 Partial enlarged view at A in; Figure 7 For the present invention Figure 5 Partial enlarged view at B in; Figure 8 Schematic diagram of the structure of the limiting rod of the present invention; Figure 9 Schematic diagram of the structure of the air guide plate of the present invention; Figure 10 Schematic diagram of the structure of the adjusting frame of the present invention; Figure 11 Schematic diagram of the structure of the air guiding groove of the present invention.

[0015] Explanation of the reference numerals in the drawings: 1. Outer frame; 11. Evaporator; 12. Water receiving tray; 2. Frost prevention component; 21. Water receiving tank; 22. Axial flow impeller cylinder; 23. First servo motor; 24. Absorbent cotton column; 25. Bearing plate; 3. Comprehensive component; 31. Housing frame; 32. Bottom support; 33. Worm gear; 34. Second servo motor; 35. Worm; 4. Co - lifting component; 41. Connecting block; 42. Sliding groove; 43. Lifting platform; 44. Lifting taper rod; 45. Support seat; 46. Guide rail ring; 47. Threaded rod; 48. Limiting rod; 49. Return spring; 401. Lead groove; 402. Mounting column; 403. Blade; 5. Air guiding component; 51. Mounting frame; 52. Air guiding plate; 53. Contact plate; 54. Centering column; 55. Air guiding groove; 56. Adjusting frame; 57. Threaded hole; 58. Stabilizing column; 59. Adjusting bolt; 501. Screw hole. Detailed implementation mode

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below in conjunction with the accompanying drawings.

[0017] The present invention provides an energy - saving HVAC heating outdoor unit with a frost - prevention function as shown in Figure 1 , Figure 2 and Figure 3 , which includes an outer frame 1 and an evaporator 11. A water receiving tray 12 is installed at the bottom of the evaporator 11. A frost - prevention component 2 for collecting and evaporating condensed water is jointly connected between the outer frame 1 and the water receiving tray 12. A comprehensive component 3 is arranged inside the frost - prevention component 2, and the comprehensive component 3 is used to drive the frost - prevention component 2 to reciprocate up and down along the louver air outlet inside the outer frame 1 to ensure that the condensed water is quickly discharged at different positions inside the outer frame 1. An air guiding component 5 is jointly connected between the inside of the outer frame 1 and the frost - prevention component 2, and the air guiding component 5 is used to guide the airflow generated inside the frost - prevention component 2 so that the condensed water inside the frost - prevention component 2 is evaporated and discharged through the louver air outlet inside the outer frame 1: And the specific structure and principle of the outer frame 1 are all prior arts, so no more details are described in this application; currently, inside the outer frame 1, the components inside the outer frame 1 usually include a compressor: the "heart" of the heat pump system, responsible for compressing the refrigerant and increasing its temperature and pressure; an evaporator 11: absorbing external heat to evaporate the refrigerant; a condenser (indoor heat exchanger): releasing heat to the room to liquefy the refrigerant; an expansion valve (throttling device): regulating the flow and pressure of the refrigerant; a fan: forcing air flow to enhance the heat exchange efficiency; a louver air outlet; Refer to Figure 1 , Figure 2 and Figure 3As shown, the anti-frost component 2 includes a water receiving box 21 installed on the inner bottom wall of the outer frame 1 and communicating with the inside of the water receiving tray 12, and the water receiving box 21 is used to quickly collect the condensed water generated in the water receiving tray 12, and the top of the water receiving box 21 is rotatably connected to a receiving tray 25, and a water-absorbing cotton column 24 is inserted at the top of the receiving tray 25, and one end of the water-absorbing cotton column 24 passes through the receiving tray 25 and is located inside the water receiving box 21, and a first servo motor 23 is fixedly connected to the side of the outer frame 1 close to the water receiving box 21, and an axial flow impeller cylinder 22 matched with the water-absorbing cotton column 24 is installed on the top of the first servo motor 23, and the water-absorbing cotton column 24 is used to suck out the condensed water inside the water receiving box 21 and cover the surface of the water-absorbing cotton column 24, so as to increase the evaporation range of the condensed water on the surface of the water-absorbing cotton column 24 by the axial flow impeller cylinder 22; and the water-absorbing cotton column 24 is set to a conical structure and a surrounding groove is set on the outside; refer to Figure 1 , Figure 2 and Figure 3 As shown, first, the water receiving tray 12 is used to collect the condensed water dripping from the surface of the evaporator 11 to prevent the condensed water from scattering everywhere and ensure that it can accurately flow into the inside of the water receiving box 21. Then, the water receiving tray 12 guides the condensed water collected inside it to the inside of the water receiving box 21. At this time, the water receiving tray 12 directly guides the condensed water near the evaporator 11 away from the vicinity of the evaporator 11, reducing the retention of water around the evaporator 11. At the same time, the absorbent cotton column 24 is used to absorb the condensed water inside the water receiving box 21, so that the condensed water is diffused on the surface of the absorbent cotton column 24, increasing the contact range between the condensed water and the axial impeller cylinder 22, and the compressor inside the outer frame 1 and the evaporator 1 1 works simultaneously, so that the temperature inside the outer frame 1 increases, and the first servo motor 23 drives the axial flow impeller cylinder 22 to generate airflow in the outer frame 1, and the airflow generated subsequently carries the heat generated inside the outer frame 1 and blows toward the surface of the water-absorbing cotton column 24, thereby evaporating the condensed water on the surface of the water-absorbing cotton column 24 and discharging it through the louver air outlet inside the outer frame 1, and then the liquid condensed water absorbs heat (latent heat of vaporization) during the evaporation process, and this part of the heat comes from the surface of the evaporator 11 or the surrounding environment. Therefore, the condensed water slightly increases the surface temperature of the evaporator 11 during the evaporation process, so that the heat absorption effect of the evaporation of the condensed water helps to maintain the temperature of the evaporator 11, thereby inhibiting the formation of a frost layer.

[0018] refer to Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figure, the comprehensive component 3 includes a housing frame 31 fixedly connected to the top of the water receiving tank 21 and a bottom support 32 fixedly connected inside the water receiving tank 21. A worm gear 33 is commonly connected between the bottom support 32 and the receiving tray 25. A worm 35 meshing with the worm gear 33 is rotatably connected inside the housing frame 31. One end of the housing frame 31 is fixedly connected with a second servo motor 34, and the second servo motor 34 is used to drive the worm 35 to rotate. A synchronous lifting component 4 cooperating with the worm gear 33 and the receiving tray 25 is arranged inside the water receiving tank 21, and the synchronous lifting component 4 is used to realize the up-and-down reciprocating movement of the absorbent cotton column 24 during rotation; and the inside of the housing frame 31 is communicated with a part of the inside of the water receiving tank 21, and a part of the worm 35 is located inside the water receiving tank 21 and meshes with the worm gear 33; Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in the figure, when the axial flow impeller cylinder 22 generates an air flow on the surface of the absorbent cotton column 24 and evaporates the condensed water on the surface of the absorbent cotton column 24, the second servo motor 34 is driven to drive the worm 35 to rotate synchronously inside the housing frame 31. Then, the worm 35 meshes with the worm gear 33 for driving the receiving tray 25 and the absorbent cotton column 24 to rotate synchronously. At this time, the rotating absorbent cotton column 24 interacts the air flow generated by the axial flow impeller cylinder 22 at different positions outside it; thus, the rotating absorbent cotton column 24 can make different positions on the surface contact with the air flow in turn. During this process, the mechanical force generated during the rotation of the absorbent cotton column 24 makes the water more evenly distributed in the absorbent cotton column 24. The entire surface of the absorbent cotton column 24 is used for evaporation, increasing the effective evaporation area, making the evaporation rate of each part consistent, accelerating the evaporation speed of the condensed water, reducing the water vapor in the air around the evaporator 11, and helping to maintain the overall heat exchange performance of the evaporator 11.

[0019] Reference Figure 9 , Figure 10 and Figure 11 As shown in the figure, the air guiding component 5 includes a mounting frame 51 installed inside the outer frame 1, two air guiding plates 52 symmetrically connected between the mounting frame 51 and the housing frame 31. Air guiding grooves 55 are formed on one side of the two air guiding plates 52 corresponding to each other. A horn-shaped structure is formed between the two air guiding grooves 55 and the two air guiding plates 52. A contact plate 53 is connected to the side of the air guiding plate 52 close to the absorbent cotton column 24, and the contact plate 53 is set as an arc-shaped structure; A centering column 54 is movably connected between the air guiding plate 52 and the housing frame 31. A stabilizing column 58 is fixedly connected to the side of the air guiding plate 52 away from the centering column 54. The top of the stabilizing column 58 and the top of the mounting frame 51 are commonly connected with an adjusting frame 56. A plurality of threaded holes 57 are formed at the top of the mounting frame 51. A threaded hole 501 is formed at the top of the adjusting frame 56. An adjusting bolt 59 is screwed on the top of the adjusting frame 56, and the adjusting bolt 59 is screwed into the inside of the threaded hole 57 corresponding to the threaded hole 501 through the threaded hole 501; refer to Figure 9 , Figure 10 and Figure 11 As shown, in addition, a trumpet-shaped structure is formed between the air guide groove 55 and the air guide plate 52, that is, a shape with a large inlet and a small outlet, so that the airflow is gradually accelerated and evenly diffused when passing through, avoiding local airflow retention or turbulence. This uniform airflow distribution helps the airflow to fully contact with the absorbent cotton column 24; refer to Figure 2 , Figure 9 , Figure 10 and Figure 11 As shown, when it is necessary to adjust the air flow guiding direction of the air guide plate 52 and the air guide groove 55, the adjusting bolt 59 is rotated to screw it along the screw hole 501 and the inside of one of the threaded holes 57, and then the adjusting bolt 59 moves upward along one of the threaded holes 57 until it is out of the inside of one of the threaded holes 57. At this time, the locking between the adjusting frame 56 and the mounting frame 51 is lost, and the adjusting frame 56 is pushed to move along the outer arc of the mounting frame 51. The rotation of the adjusting frame 56 drives the stabilizing column 58 and the air guide plate 52 to rotate along the outside of the centering column 54, thereby adjusting the angle between the two air guide plates 52, so that a favorable flow field is formed between the air guide plate 52 and the water absorbent cotton column 24, which helps to destroy the air boundary layer on the surface of the water absorbent cotton column 24, so that the airflow and the water absorbent cotton column 24 are more fully in contact, reducing the air barrier that hinders water evaporation, and further improving the condensed water discharge rate; and when the airflow is generated near the water absorbent cotton column 24 through the axial flow impeller cylinder 22, the axial flow impeller cylinder 22 blows the generated airflow to the outside of the absorbent cotton column 24, and then the airflow passes through the position between the two air guide plates 52 and the outside of the two air guide plates 52. At this time, the two air guide plates 52 and the two air induction grooves 55 are used to guide and transport the airflow around them, so that the airflow can fully contact with various parts of the absorbent cotton column 24, and the outside of the absorbent cotton column 24 forms contact with one side of the contact plate 53 during the rotation process, and then the contact plate 53 forms a resistance with the part that contacts the absorbent cotton column 24, so as to promote the adsorbed moisture to be more evenly distributed in the absorbent cotton column 24, ensuring that the condensed water adsorbed at each part of the absorbent cotton column 24 can be affected by the airflow, thereby improving the effective utilization of the airflow, accelerating the evaporation of the condensed water, and taking away the evaporated water vapor in time, so that the airflow can continuously contact the surface of the absorbent cotton column 24, and is used to maintain the low humidity state of the air around the absorbent cotton column 24, thereby continuous airflow renewal provides good conditions for further evaporation of the condensed water, so that the evaporation process can be carried out continuously and efficiently.

[0020] refer to Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the water lifting component 4 includes a lifting platform 43 fixedly connected inside the water receiving tank 21, and the top of the lifting platform 43 is set as an inclined structure. An engaging block 41 is installed inside the receiving tray 25. A sliding groove 42 for the movement of the engaging block 41 is formed outside the water absorbent cotton column 24. One end of the water absorbent cotton column 24 close to the lifting platform 43 is fixedly connected with a support seat 45. A lifting tapered rod 44 is fixedly connected to the bottom of the support seat 45, and the bottom end of the lifting tapered rod 44 is located on the top of the lifting platform 43. A guiding rail ring 46 for the guiding movement of the lifting tapered rod 44 is fixedly connected to the top end of the lifting platform 43; A threaded rod 47 is screwed to the top end of the water absorbent cotton column 24. A limiting rod 48 is jointly connected between the threaded rod 47 and the mounting frame 51. A guiding groove 401 for the reciprocating insertion and extraction of the limiting rod 48 is formed at the top end of the threaded rod 47. A return spring 49 is jointly connected between the outside of the limiting rod 48 and the outside of the threaded rod 47; An installation column 402 is fixedly connected to the outside of the support seat 45. A blade 403 is hinged to the outside of the installation column 402, and the blade 403 is used to drive the condensed water around the water absorbent cotton column 24 to flow; Reference Figure 5 and Figure 9 As shown, in addition, the rotation and up-and-down reciprocating movement of the water absorbent cotton column 24 prevent impurities from remaining on the surface of the water absorbent cotton column 24 after the condensed water evaporates. Due to the rotation of the water absorbent cotton column 24, the relative movement between its surface and the air flow and its own rotational friction reduce the accumulation of impurities in the pores on the surface of the water absorbent cotton column 24, ensuring continuous water absorption and evaporation and maintaining the continuous evaporation capacity of the water absorbent cotton column 24; Reference Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, when the absorbent cotton column 24 rotates, the support base 45 at its bottom is driven to rotate synchronously. Subsequently, the support base 45 rotates and guides its external rotation along the guide rail ring 46. At this time, the slope between the lifting taper rod 44 and the lifting table 43 is matched to drive the lifting taper rod 44 to move upward or downward. And the upward movement of the lifting taper rod 44 pushes the absorbent cotton column 24 to move upward synchronously, so that the upward movement of the absorbent cotton column 24 keeps the relative movement between the chute 42 opened on its outer part and the connecting block 41, ensuring that the absorbent cotton column 24 moves upward during the rotation process. The two movements have a sequence to avoid jamming of the absorbent cotton column 24 during the movement. Moreover, the upward movement of the absorbent cotton column 24 drives the threaded rod 47 to move upward synchronously, so that the reset spring 49 is compressed between the limiting rod 48 and the threaded rod 47. During this process, the upward movement of the threaded rod 47 drives the guiding groove 401 to move upward synchronously, so that the inside of the guiding groove 401 moves upward along the outside of the limiting rod 48. Thus, the absorbent cotton column 24 rotates and moves upward relative to the air guide plate 52, further enhancing the contact between different positions on the surface of the absorbent cotton column 24 and the air flow, facilitating the formation of a dynamic flow environment for the air around the absorbent cotton column 24, frequently updating the air layer in contact with the surface of the absorbent cotton column 24, and being able to provide a better evaporation gradient for the condensed water on the surface of the absorbent cotton column 24 to improve the evaporation efficiency. At the same time, the rotation of the support base 45 drives the mounting column 402 to rotate synchronously. Subsequently, the rotation of the mounting column 402 drives the blade 403 to rotate synchronously. At this time, the rotation of the blade 403 is used to stratify and stir the water near the support base 45, increasing the fluidity of the water in the water receiving tank 21 and preventing the water in the water receiving tank 21 from standing still for a long time, which will form a "water film" near the absorbent cotton column 24 and hinder the water absorption of the absorbent cotton column 24, thereby maintaining the moisture absorption performance of the absorbent cotton column 24.

[0021] Working principle: When in use; Refer to Figure 1 、 Figure 2 and Figure 3 As shown in, first, the water receiving tray 12 is used to collect the condensed water dripping from the surface of the evaporator 11, preventing the condensed water from scattering everywhere and ensuring that it can accurately flow into the inside of the water receiving tank 21. Subsequently, the water receiving tray 12 guides the condensed water collected inside it into the inside of the water receiving tank 21. At this time, the water receiving tray 12 directly guides the condensed water near the evaporator 11 and away from the vicinity of the evaporator 11, reducing the residence time of moisture around the evaporator 11.

[0022] Refer to Figure 1 、 Figure 2 and Figure 3As shown, the water-absorbing cotton column 24 is used to absorb the condensed water inside the water-receiving tank 21, so that the condensed water diffuses on the surface of the water-absorbing cotton column 24. Then, the axial-flow impeller cylinder 22 is used to transport the generated air flow near the air guiding component 5. At this time, the air guiding component 5 is used to guide and transport the air flow around it, enabling the air flow to fully contact all parts of the water-absorbing cotton column 24.

[0023] Reference Figure 1 、 Figure 2 and Figure 3 As shown, driven by the comprehensive component 3, the receiving tray 25 and the water-absorbing cotton column 24 rotate synchronously. At this time, the rotating water-absorbing cotton column 24 interacts with the air flow guided by the air guiding component 5 at different external positions, so that the different positions on the surface of the rotating water-absorbing cotton column 24 can sequentially contact the air flow, promoting the adsorbed water to be more evenly distributed in the water-absorbing cotton column 24, ensuring that the condensed water adsorbed at each place of the water-absorbing cotton column 24 can be affected by the air flow, improving the effective utilization of the air flow, accelerating the evaporation of the condensed water, and timely taking away the evaporated water vapor, enabling the air flow to continuously contact the surface of the water-absorbing cotton column 24.

[0024] Reference Figure 1 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, through the rotation of the water-absorbing cotton column 24, it cooperates with the same-lifting component 4. Then, the water-absorbing cotton column 24 and the air guiding component 5 maintain a rotational and upward movement state, further enhancing the contact between different positions on the surface of the water-absorbing cotton column 24 and the air flow, which is beneficial to forming a dynamic flow environment for the air around the water-absorbing cotton column 24, frequently updating the air layer in contact with the surface of the water-absorbing cotton column 24, being able to provide a better evaporation gradient for the condensed water on the surface of the water-absorbing cotton column 24, and at the same time, the compressor and the evaporator 11 inside the outer frame 1 work, increasing the temperature inside the outer frame 1. Moreover, the first servo motor 23 drives the axial-flow impeller cylinder 22 to generate an air flow inside the outer frame 1. Then, the generated air flow carries the heat generated inside the outer frame 1 and blows towards the surface of the water-absorbing cotton column 24, thereby evaporating the condensed water on the surface of the water-absorbing cotton column 24 and discharging it through the louver air outlet inside the outer frame 1. Subsequently, the liquid condensed water will absorb heat (latent heat of vaporization) during the evaporation process, and this part of the heat comes from the surface or the surrounding environment of the evaporator 11. Therefore, the heat absorption effect of the evaporation of the condensed water slightly raises the surface temperature of the evaporator 11, and its heat absorption effect for evaporating the condensed water helps to maintain the temperature of the evaporator 11, thus inhibiting the formation of frost layers.

[0025] Only some exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those of ordinary skill in the art can modify the described embodiments in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An energy-saving HVAC heating outdoor unit with an anti-frost function, including an outer frame and an evaporator, wherein a water receiving tray is installed at the bottom of the evaporator, and it is characterized in that: A frost prevention component for collecting and evaporating condensed water is jointly connected between the outer frame and the water receiving tray. A comprehensive component is arranged inside the frost prevention component, and the comprehensive component is used to drive the frost prevention component to reciprocate up and down along the louver air outlet inside the outer frame, ensuring that the condensed water is quickly discharged at different positions inside the outer frame. A wind guiding component is jointly connected between the inside of the outer frame and the frost prevention component, and the wind guiding component is used to guide the airflow generated inside the frost prevention component so that the condensed water inside the frost prevention component is evaporated and discharged through the louver air outlet inside the outer frame.

2. The energy-saving HVAC heating outdoor unit with an anti-frost function according to claim 1, characterized in that: The frost prevention component includes a water receiving tank installed on the inner bottom wall of the outer frame and communicating with the inside of the water receiving tray. The water receiving tank is used to quickly collect the condensed water generated in the water receiving tray. A receiving tray is rotatably connected to the top of the water receiving tank. A water absorbing cotton column is inserted into the top of the receiving tray, and one end of the water absorbing cotton column penetrates through the receiving tray and is located inside the water receiving tank. A first servo motor is fixedly connected to one side of the outer frame close to the water receiving tank, and an axial flow impeller cylinder cooperating with the water absorbing cotton column is installed at the top of the first servo motor. The water absorbing cotton column is used to suck out the condensed water inside the water receiving tank and cover the surface of the water absorbing cotton column, increasing the evaporation range of the condensed water on the surface of the water absorbing cotton column by the axial flow impeller cylinder.

3. The energy-saving HVAC heating outdoor unit with an anti-frost function according to claim 2, characterized in that: The comprehensive component includes a shell frame fixedly connected to the top of the water receiving tank and a bottom support fixedly connected inside the water receiving tank. A worm gear is jointly connected between the bottom support and the receiving tray. A worm meshing with the worm gear is rotatably connected inside the shell frame. A second servo motor is fixedly connected to one end of the shell frame, and the second servo motor is used to drive the worm to rotate. A same-lifting component cooperating with the worm gear and the receiving tray is arranged inside the water receiving tank, and the same-lifting component is used to realize the reciprocating up and down movement of the water absorbing cotton column during rotation.

4. The energy-saving HVAC heating external unit with an anti-frost function according to claim 2, characterized in that: The wind guiding component includes a mounting frame installed inside the outer frame and two wind guiding plates symmetrically connected between the mounting frame and the shell frame. Air guiding grooves are formed on one side of the two wind guiding plates corresponding to each other. A horn-shaped structure is formed between the two air guiding grooves and the two wind guiding plates. A contact plate is connected to one side of the wind guiding plate close to the water absorbing cotton column, and the contact plate is set to be an arc-shaped structure.

5. The energy-saving HVAC heating outdoor unit with an anti-frost function according to claim 4, characterized in that: A centering column is movably connected between the wind guiding plate and the shell frame. A stabilizing column is fixedly connected to one side of the wind guiding plate away from the centering column. An adjusting frame is jointly connected between the top of the stabilizing column and the top of the mounting frame. A plurality of threaded holes are formed in the top of the mounting frame. A screw hole is formed in the top of the adjusting frame. An adjusting bolt is screwed on the top of the adjusting frame, and the adjusting bolt is screwed into the internal threaded hole corresponding to the screw hole through the screw hole.

6. The energy-saving HVAC heating outdoor unit with an anti-frost function according to claim 5, characterized in that: The same-lifting component includes a lifting platform fixedly connected inside the water receiving tank, and the top of the lifting platform is set to be an inclined structure. A connecting block is installed inside the receiving tray. A sliding groove for the connecting block to move is formed on the outside of the water absorbing cotton column. A support seat is fixedly connected to one end of the water absorbing cotton column close to the lifting platform. A lifting cone rod is fixedly connected to the bottom of the support seat, and the bottom end of the lifting cone rod is located on the top of the lifting platform. A guiding rail ring for guiding the lifting cone rod to move is fixedly connected to the top of the lifting platform.

7. The energy-saving HVAC heating outdoor unit with an anti-frost function according to claim 6, characterized in that: A threaded rod is screwed to the top end of the absorbent cotton column. A limiting rod is jointly connected between the threaded rod and the mounting bracket. A guiding groove for the reciprocating insertion and extraction of the limiting rod is formed at the top end of the threaded rod. A return spring is jointly connected between the outer part of the limiting rod and the outer part of the threaded rod.

8. The energy-saving heating and ventilation outdoor unit with anti-frost function according to claim 6, characterized in that: A mounting column is fixedly connected to the outside of the support base. A blade is hinged to the outside of the mounting column, and the blade is used to drive the condensed water around the absorbent cotton column to flow.

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