Constant temperature dehumidification heat pump with nano photohydrogen ion sterilization and purification function

Abstract

The present application relates to air conditioning and energy saving and environmental protection technical field, especially disclose a kind of constant temperature dehumidification heat pump with nano light hydrogen ion sterilization and purification function, including cabinet, cabinet is equipped with air supply port, air inlet, air supply fan, compressor, evaporator, condenser and water pan;It also includes control unit and nano light hydrogen ion purification module, nano light hydrogen ion purification module is used to carry out particle matter interception, microorganism inactivation and organic gaseous pollutant degradation purification treatment to the airflow passing through it;Control unit is configured to regulate and control dehumidification heat pump and nano light hydrogen ion purification module synchronous start-stop, stop delay sterilization or according to air pollutant, humidity parameter grading regulation operating power;Cabinet is also provided with air flow guide structure for guiding and shunting the airflow flowing from air inlet, so that part of airflow passes through nano light hydrogen ion purification module and then enters evaporator, and then guide another part of airflow directly into evaporator.

Description

Technical Field

[0001] This invention relates to the field of air conditioning and energy-saving environmental protection technology, and in particular discloses a constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function. Background Technology

[0002] While existing mature constant-temperature dehumidification heat pump equipment can meet basic dehumidification and temperature regulation needs (belonging to the category of high-efficiency energy-saving industries), it generally lacks the ability to actively inactivate and degrade bacteria, viruses, and volatile organic pollutants such as formaldehyde and TVOCs in the air, failing to meet the deeper requirements of advanced environmental protection industries for indoor air purification. Furthermore, traditional dehumidifiers have shortcomings in their moisture-proof design; the control unit and high-humidity air ducts are often housed in the same enclosure, making the circuitry highly susceptible to moisture damage, electrical leakage, or corrosion. Simultaneously, achieving the above functions often requires additional external air purification devices, which not only disrupts the aerodynamic balance of the original air duct and increases air resistance but also leads to system complexity and increased energy consumption, failing to meet the strategic emerging industry demand for highly efficient integration of "constant-temperature dehumidification + active purification." Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function for indoor spaces, especially high humidity environments such as swimming pools and laboratories.

[0004] To achieve the above objectives, the present invention provides a constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function, comprising a housing, with an air outlet and an air inlet at both ends of the housing, and an air supply fan, a compressor, an evaporator, a condenser, and a water collection tray inside the housing; the air supply fan is located downstream of the condenser and close to the air outlet, and is used to create a negative pressure inside the housing to drive airflow into the housing through the air outlet and out through the air inlet, the evaporator and the condenser are arranged sequentially along the airflow direction, and the compressor, evaporator, and condenser are connected through refrigerant pipelines to form a heat pump circulation loop; It also includes a control unit and a nano-photohydrogen ion purification module located between the air inlet and the evaporator. The nano-photohydrogen ion purification module is used to perform a composite purification treatment on the airflow passing through it, including particulate matter interception, microbial inactivation, and degradation of organic gaseous pollutants. The nano-photohydrogen ion purification module is electrically connected to the control unit, which is configured to regulate the synchronous start and stop of the dehumidifying heat pump and the nano-photohydrogen ion purification module, the shutdown delay for disinfection, or the graded adjustment of the operating power according to air pollutants and humidity parameters. The housing is also equipped with an airflow guiding structure, which is used to guide and divert the airflow that flows in from the air inlet, so that part of the airflow passes through the nano-photohydrogen ion purification module to complete the purification treatment before entering the evaporator, and then guides another part of the airflow directly into the evaporator.

[0005] Furthermore, the nano-photohydrogen ion purification module includes an outer frame, a flow-guiding buffer chamber, a primary filter layer, and a photohydrogen ion catalytic sterilization unit arranged sequentially within the outer frame along the airflow direction; the windward side of the flow-guiding buffer chamber is provided with an flared structure, and its internal cross-sectional area is larger than the inlet cross-sectional area; the primary filter layer includes a removable pre-coarse filter and a fine filter layer located behind it.

[0006] Furthermore, the photocatalytic hydrogen ion sterilization unit includes a first support, a dual-band UVC ultraviolet lamp tube disposed on the first support, and a catalyst carrier layer; the control unit is electrically connected to the dual-band UVC ultraviolet lamp tube; multiple dual-band UVC ultraviolet lamp tubes are provided and arranged on the windward side of the catalyst carrier layer; the catalyst carrier layer is provided with multiple honeycomb structure through holes; the catalyst carrier is an aluminum-based carrier with titanium dioxide coated on its surface; the extension direction of the dual-band UVC ultraviolet lamp tubes and the opening direction of the through holes of the catalyst carrier intersect each other perpendicularly.

[0007] Preferably, the inner wall of the cavity corresponding to the photocatalytic sterilization unit of the outer frame is provided with a reflective aluminum foil layer.

[0008] Furthermore, the box body is provided with a module mounting cavity, and annular sealing sponge strips are attached to the outer edges of the outer frame. When the nano-photohydrogen ion purification module is installed into the module mounting cavity, the sealing sponge strips fit tightly against the inner wall of the module mounting cavity.

[0009] Furthermore, the photocatalytic sterilization unit also includes a second support located behind the first support along the airflow direction, a high-voltage plasma discharge needle and a second filter screen mounted on the second support; the control unit is electrically connected to the high-voltage plasma discharge needle; the second filter screen is a corrugated filter screen with a titanium dioxide coating sprayed on its surface; the tip of the high-voltage plasma discharge needle points in the direction of airflow entry; the dual-band UVC ultraviolet lamp tube and the high-voltage plasma discharge needle together form a sterilization structure with synergistic effects of plasma and photocatalysis.

[0010] Furthermore, the airflow guiding structure includes a first plate, a second plate, and a third plate disposed within the housing. The first and third plates are parallel to each other and are arranged sequentially along the airflow direction to form a "U" shape. The first plate is positioned near the air inlet, the third plate is positioned near the evaporator, and the second plate is positioned corresponding to the nano-photohydrogen ion purification module. A circular first pressure equalization and diversion hole is formed on the first plate, and a circular second pressure equalization and diversion hole is formed on the second plate. The first and second pressure equalization and diversion holes are used to depressurize and equalize the airflow entering through the air inlet.

[0011] Preferably, the first pressure equalization and diversion hole is provided in multiple arrays, and the total area of ​​the first pressure equalization and diversion hole is arranged on the surface of the first plate, with the total area of ​​the first pressure equalization and diversion hole accounting for 3%-7% of the total windward area of ​​the first plate; the second pressure equalization and diversion hole is provided in multiple arrays, and the total area of ​​the second pressure equalization and diversion hole is arranged on the surface of the second plate, with the total area of ​​the second pressure equalization and diversion hole accounting for 3%-7% of the total windward area of ​​the third plate. When the opening ratio is less than 3%, the pressure relief is insufficient, and the fan is prone to producing a whistling sound; when the opening ratio is greater than 7%, a large amount of airflow bypasses the purification module and is directly jetted into the evaporator through the holes, resulting in ineffective purification.

[0012] Furthermore, the housing is provided with a fresh air interface for introducing outdoor air at the air outlet; the fresh air interface is provided with an adjustable air valve, which has a drive motor and a damper actuator. The damper actuator is electrically connected to the control unit, and the control unit is used to output an opening control command to the damper actuator to adjust the amount of fresh air entering the housing through the fresh air interface.

[0013] Preferably, the damper actuator is electrically connected to a control signal harness that runs along the side wall of the housing via a moisture-proof terminal block. The other end of the control signal harness is connected to the I / O interface board preset by the control unit. The control unit controls the opening of the damper actuator through the signal harness to adjust the air mixing ratio between the fresh air inlet and the air inlet entering the housing.

[0014] Furthermore, the bottom of the water receiving tray is provided with an electric heating defrosting component, which is electrically connected to the control unit. The control unit is used to control the electric heating defrosting component to generate heat when the dehumidifying heat pump is in low-temperature operation, so as to melt the condensed ice in the water receiving tray.

[0015] Furthermore, the outer wall of the box is provided with a sealed moisture-proof box, the control unit is set inside the sealed moisture-proof box, the sealed moisture-proof box is provided with a power drive module, and the power drive module is electrically connected between the nano-photohydrogen ion purification module and the control unit; the inner wall of the box corresponding to the sealed moisture-proof box is provided with a moisture-proof drying layer, and the outer side of the sealed moisture-proof box is provided with heat dissipation fins.

[0016] Furthermore, it also includes an ambient air quality sensor and a temperature and humidity sensor installed at the air inlet. The ambient air quality sensor is used to detect the concentration of particulate matter and TVOC in the airflow entering the air inlet, and the temperature and humidity sensor is used to detect the temperature and humidity of the airflow entering the air inlet. The control unit has a storage module, which pre-stores graded air pollutant judgment thresholds and temperature and humidity judgment thresholds corresponding to constant temperature and humidity targets. The control unit has built-in data comparison logic, which is used to obtain the real-time pollutant detection values ​​output by the ambient air quality sensor and the real-time temperature and humidity detection values ​​output by the temperature and humidity sensor, and compare the real-time pollutant detection values ​​and the real-time temperature and humidity detection values ​​with the corresponding air pollutant judgment thresholds and temperature and humidity judgment thresholds in the storage module. Based on the pollution level and temperature and humidity deviation range obtained from numerical comparison, the control unit outputs multi-level power adjustment commands to the power drive module to control the number of dual-band UVC ultraviolet lamps turned on inside the nano-photohydrogen ion purification module and the working power of the high-voltage plasma discharge needle.

[0017] Furthermore, the control unit also includes a relay and a timer; the power cord of the nano-photohydrogen ion purification module is electrically connected to the relay of the control unit via a quick-connect aviation plug or waterproof terminal block; when the dehumidifying heat pump host receives a shutdown signal, the control unit controls the compressor to stop working, while maintaining the synchronous and continuous operation of the air blower and the nano-photohydrogen ion purification module, and the timer accumulates the disinfection working time; after the timer reaches the preset disinfection time, the control unit synchronously cuts off the power supply circuit of the nano-photohydrogen ion purification module and the air blower through the relay to achieve shutdown delayed disinfection.

[0018] The core working principle of this invention is as follows: the airflow guiding structure inside the housing scientifically diverts the humid and hot air introduced through the air inlet; most of the airflow is forced through a pull-out "nano-photohydrogen ion purification drawer," which integrates a pre-filter, a plasma photocatalytic sterilization layer composed of dual-band UVC lamps and discharge needles, and a post-activated carbon layer for deodorization along the airflow direction. The purified airflow merges with the bypass airflow, flows through the evaporator for cooling and dehumidification, then flows through the condenser to absorb the heat discharged from the compressor for heating, and is finally blown out by the blower. The control unit and power drive module of the whole machine are completely isolated and installed in an independent sealed moisture-proof electrical control box on the outer wall of the housing, and are electrically connected to the purification module through a specially designed quick-connect aviation connector.

[0019] The beneficial effects of this invention are as follows: This invention achieves an organic combination of high efficiency and energy saving with advanced environmental protection. By integrating a composite purification drawer between the original fan and evaporator, deep air purification is achieved without changing the original aerodynamic performance of the heat pump, avoiding the additional energy consumption caused by separately turning on the air purifier and improving energy-saving effect. The use of an external independent moisture-proof electrical control box completely solves the industry problem of electrical components failing due to moisture in high humidity environments, significantly improving the reliability of long-term operation. At the same time, intelligent control strategies such as delayed shutdown disinfection and graded power adjustment not only meet the energy-saving and environmental protection industry's demand for high efficiency and long lifespan, but also make this invention highly valuable for application and promotion in advanced environmental protection industries such as civilian indoor air purification and atmospheric pollutant control. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the dehumidifying heat pump of the present invention; Figure 2 This is an exploded structural diagram of the dehumidifying heat pump of the present invention; Figure 3 This is a schematic diagram of the internal gas flow path of the dehumidifying heat pump of the present invention; Figure 4 This is an exploded structural diagram of the nano-photohydrogen ion purification module and the housing of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the photohydrogen ion catalytic sterilization unit of the present invention; Figure 6 This is a schematic diagram showing the position and structure of the water receiving tray and the electric heating defrosting assembly of the present invention.

[0021] The reference numerals in the figures include: 1. Cabinet; 2. Air outlet; 3. Air inlet; 4. Control unit; 5. Nano-photohydrogen ion purification module; 6. Airflow guiding structure; 7. Adjustable air valve; 8. Sealed moisture-proof box; 11. Air supply fan; 12. Compressor; 13. Evaporator; 14. Condenser; 15. Water tray; 16. Module mounting cavity; 17. Fresh air interface; 18. Electric heating defrosting assembly; 31. Ambient air quality sensor; 32. Temperature and humidity sensor; 51. Outer frame; 52. Airflow guide buffer. 53. Primary filter layer; 54. Photocatalytic sterilization unit; 541. First support; 542. Dual-band UVC ultraviolet lamp; 543. Catalytic carrier layer; 544. Through hole; 55. Second support; 56. High-voltage plasma discharge needle; 57. Second filter screen; 61. First plate; 611. First pressure equalization and diversion hole; 62. Second plate; 621. Second pressure equalization and diversion hole; 63. Third plate; 71. Drive motor; 72. Damper actuator. Detailed Implementation

[0022] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0023] Please see Figures 1 to 6 As shown, a constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to the present invention includes a horizontal box 1. Air outlet 2 and air inlet 3 are respectively provided at both ends of the box 1. In the inner cavity of the box 1, the air inlet 3, the air guide duct, the nano-photohydrogen ion purification module 5, the evaporator 13, the condenser 14 and the air supply fan 11 located at the rear are arranged in sequence along the airflow direction.

[0024] Specifically, the air supply fan 11 is located downstream of the condenser 14 and close to the air outlet 2. When it is running, it can create a negative pressure in the housing 1, thereby driving the airflow to be drawn in from the air inlet 3, flowing through the purification and heat exchange area in sequence, and then being sent out from the air outlet 2.

[0025] A drip tray 15 is installed at the bottom of the condenser 14 and the evaporator 13 to collect the condensate generated on the surface of the evaporator 13. A compressor 12 is also arranged inside the housing 1. The compressor 12 is connected to the evaporator 13 and the condenser 14 through refrigerant pipes to form a complete heat pump cycle loop.

[0026] Specifically, a control unit 4 is also provided outside the housing 1. The control unit 4 is electrically connected to the air supply fan 11 and the compressor 12, and is also electrically connected to the nano-photohydrogen ion purification module 5 installed between the air inlet 3 and the evaporator 13.

[0027] According to a preset program, the control unit 4 can control the dehumidifying heat pump and the nano-photohydrogen ion purification module 5 to start and stop synchronously, or execute a delayed disinfection program after shutdown, or adjust the operating power of the purification module in stages according to the received air pollutant concentration and humidity parameters.

[0028] In addition, an airflow guiding structure 6 is designed inside the housing 1. The function of the airflow guiding structure 6 is to guide and divert the hot and humid airflow drawn in from the air inlet 3, so that part of the airflow is forced to pass through the nano-photohydrogen ion purification module 5 to complete deep purification before entering the evaporator 13, while the other part of the airflow directly enters the evaporator 13 through the bypass to participate in heat exchange. Thus, while ensuring the system air pressure balance, it can achieve efficient purification and dehumidification in parallel.

[0029] Compared to existing products that rely solely on passive physical filtration and whose purification modules are connected in series with the dehumidification system, resulting in excessive air resistance, the layout and control logic of the housing 1 in this solution can effectively solve the technical problems of airflow reduction and duct disorder caused by the series connection of purification devices in traditional units.

[0030] Specifically, in this embodiment, the nano-photohydrogen ion purification module 5 is a pull-out integrated assembly structure; its main body is an outer frame 51, and inside the outer frame 51, a flow guide buffer chamber 52, a primary filter layer 53 and a photohydrogen ion catalytic sterilization unit 54 are arranged in sequence according to the airflow direction.

[0031] Among them, the windward side of the flow-guiding buffer cavity 52 adopts an flared design, which makes the cross-sectional area inside the cavity larger than the cross-sectional area of ​​the inlet. This is equivalent to giving the high-speed airflow coming in from the air inlet 3 a space for diffusion and expansion, which can convert the high dynamic pressure airflow into a uniform static pressure airflow.

[0032] The primary filter layer 53 is a dual-layer structure consisting of a removable pre-filter and a fine filter layer located behind it. The pre-filter is responsible for intercepting large particles of hair and lint, while the fine filter layer further intercepts fine dust, thus providing full protection for the photocatalytic components behind it.

[0033] Compared to conventional flat-mouth pull-out filters in existing technologies, this solution effectively solves the problem of direct jet blowing from the air intake fan by setting up a flared flow buffer chamber 52, significantly reducing local whistling noise. At the same time, the layered primary filter layer 53 not only increases the dust holding capacity but also extends the maintenance cycle of high-value photocatalytic components and high-efficiency filters.

[0034] Specifically, in this embodiment, the photo-hydrogen ion catalytic sterilization unit 54 includes multiple dual-band UVC ultraviolet lamps 542 and a catalytic carrier layer 543 disposed on the first support 541.

[0035] The control unit 4 is electrically connected to the dual-band UVC ultraviolet lamp 542 to control its start and stop.

[0036] Multiple dual-band UVC ultraviolet lamps 542 are arranged on the windward side of the catalyst support layer 543, and the catalyst support layer 543 is an aluminum-based honeycomb carrier with nano-titanium dioxide coated on its surface, and the carrier is processed with dense honeycomb structure through holes 544.

[0037] In terms of spatial relationship, the length extension direction of the dual-band UVC ultraviolet lamp tube 542 is arranged perpendicularly to the opening direction of the through hole 544 of the catalyst carrier.

[0038] In actual operation, the ultraviolet light emitted by the ultraviolet lamp can quickly excite the titanium dioxide on the inner wall of the honeycomb pores, generating highly oxidizing hydroxyl radicals, which can rapidly inactivate and degrade the air that penetrates the honeycomb pores.

[0039] As a supplementary preferred embodiment, a reflective aluminum foil layer is also laid on the inner wall of the cavity corresponding to the entire photocatalytic sterilization unit 54 inside the outer frame 51. This aluminum foil layer can cyclically reflect the scattered ultraviolet light back to the catalyst surface, greatly improving the utilization rate of ultraviolet energy. The vertically crisscrossed arrangement of the reflective aluminum foil layer in this embodiment can ensure that the airflow obtains more uniform and efficient photocatalytic treatment when penetrating the honeycomb holes, achieving a more thorough sterilization and formaldehyde removal effect.

[0040] Specifically, in this embodiment, in order to enable the pull-out nano-photohydrogen ion purification module 5 to achieve a completely airtight fit within the housing 1, a module mounting cavity 16 is reserved at the corresponding position of the housing 1, and a pull-out guide rail is provided inside the module mounting cavity 16.

[0041] A ring-shaped sealing sponge strip is affixed to the outer edges of the outer frame 51 (especially the edges of the windward and exhaust surfaces). When the nano-photohydrogen ion purification module 5 is pushed into the module mounting cavity 16 inside the housing 1 along the guide rail, the ring-shaped sealing sponge strip is compressed and forms an interference fit with the inner wall of the module mounting cavity 16, thus forming a completely sealed air duct isolation structure. This structure ensures that all airflow drawn in through the air inlet 3 must pass through the interior of the purification module and will never "short-circuit" and escape from the gap between the outer frame 51 and the inner wall of the housing 1.

[0042] Specifically, in this embodiment, in order to further enhance the sterilization ability, the photohydrogen ion catalytic sterilization unit 54 not only has an ultraviolet lamp structure arranged on the windward side, but also has a plasma generation structure with synergistic effect behind it.

[0043] Specifically, a second bracket 55 is provided behind the first bracket 541, and a high-voltage plasma discharge needle 56 and a second filter 57 located downstream of the discharge needle are installed on the second bracket 55.

[0044] The second filter 57 is a corrugated filter with a wave-like shape, and its surface is also coated with a nano-sized titanium dioxide coating.

[0045] The tip of the high-voltage plasma discharge needle 56 is parallel to the airflow direction and the tip is directly facing the airflow inlet direction. At the same time, the control unit 4 is also electrically connected to the high-voltage plasma discharge needle 56.

[0046] When the device is running, the high-voltage plasma discharge needle 56 generates a corona discharge at its tip, ionizing water molecules and oxygen in the air into high-energy active plasma. These high-energy ions, driven by the airflow, bombard the second filter 57, which has a corrugated folded structure and is coated with titanium dioxide. This not only kills bacteria but also stimulates the catalytic activity of titanium dioxide, complementing and multiplying the photocatalytic effect of the dual-band UVC ultraviolet lamp 542 in front, thus forming a dual sterilization structure of "plasma and photocatalysis synergy".

[0047] Specifically, in this embodiment, the airflow guiding structure 6 consists of three metal plates fixedly welded inside the housing 1, namely the first plate 61, the second plate 62, and the third plate 63.

[0048] The first plate 61 and the third plate 63 are parallel to each other, and the first plate 61, the second plate 62 and the third plate 63 are arranged in sequence along the airflow direction. The three plates work together to form a U-shaped reversing flow channel.

[0049] In terms of position, the first plate 61 is positioned close to the air inlet 3, the third plate 63 is positioned close to the evaporator 13, and the second plate 62 is positioned directly opposite the air inlet of the nano-photohydrogen ion purification module 5. To prevent excessive airflow pressure from the fan from generating noise, the first plate 61 has a circular array of first pressure equalization and diversion holes 611, and the third plate 63 has a circular array of second pressure equalization and diversion holes 621.

[0050] In actual operation, most of the airflow entering the duct is blocked by the first plate 61 and forced to pass laterally through the nano-photohydrogen ion purification module 5 in front of the second plate 62, guided by the "U"-shaped channel. A small portion of the airflow is directly discharged to the rear cavity through the first pressure equalization and diversion hole 611 on the first plate 61 and the second pressure equalization and diversion hole 621 on the third plate 63, thereby achieving the purpose of depressurization, eliminating fan surge noise, and evenly distributing the wind speed on the windward side of the refrigerant coil.

[0051] In the preferred embodiment, the total area of ​​the first equalizing and diverting hole 611 can be designed to account for 3% to 7% of the total windward area of ​​the first plate 61, and the total area of ​​the second equalizing and diverting hole 621 can also be maintained at 3% to 7% of the total windward area of ​​the third plate 63, thereby achieving the optimal balance between pressure relief and noise reduction and preventing the purification from being ineffective.

[0052] Compared to existing dehumidifiers that only add a mesh or a simple flat baffle to the fan outlet, this embodiment uses a U-shaped folding flow guiding structure with pressure equalization and diversion holes to cleverly achieve both "forced purification" and "bypass pressure relief" physical functions in the same cavity, greatly improving the system's low-noise operation and purification efficiency.

[0053] Preferably, a fresh air inlet 17 is provided on the housing 1 at the position corresponding to the air outlet 2, for introducing fresh air from outside.

[0054] The fresh air interface 17 has an electrically adjustable air valve 7 installed inside the air duct. The air valve includes a drive motor 71 and a damper actuator 72. The damper actuator 72 is electrically connected to the control unit 4 through a moisture-proof terminal block.

[0055] During actual control, the control unit 4 outputs a specific angle opening control command to the damper actuator 72 to precisely control the amount of fresh air entering the housing 1 through the fresh air inlet 17. At the same time, the damper actuator 72 is connected to the I / O interface board of the control unit 4 through a bundle of control signal wires arranged along the side wall of the housing 1.

[0056] Staff can set the fresh air introduction ratio on the control panel according to the indoor and outdoor air quality conditions. The control unit 4 automatically controls the mixing ratio of outdoor fresh air and indoor return air by adjusting the opening of the damper actuator 72.

[0057] Preferably, considering that the machine may operate under low-temperature conditions in winter, an electric heating defrosting assembly 18 is provided at the bottom of the water receiving tray 15, which is connected to the control unit 4 via electrical wiring.

[0058] When the ambient temperature sensor or system self-test determines that the dehumidifying heat pump is in a low-temperature frosting condition, the control unit 4 will actively supply power to the electric heating defrosting component 18 to heat it up, thereby melting and draining the condensate ice that may accumulate in the water tray 15, as well as melting the thin frost attached to the edge of the bottom fins of the evaporator 13.

[0059] This embodiment, through the heating structure at the bottom of the water tray 15, eliminates the root cause of dehumidifier condensate freezing in winter from a physical principle, thereby improving the equipment's environmental adaptability.

[0060] Preferably, to protect the critical electronic control components, an independent sealed moisture-proof box 8 is fixedly installed on the outer wall of the enclosure 1; the control unit 4 is entirely located inside the sealed moisture-proof box 8, and the power supply module required for power supply is also uniformly arranged inside the sealed moisture-proof box 8. The power supply module is connected between the external power supply, the control unit 4, and the nano-photohydrogen ion purification module 5, converting the mains power into a safe working voltage and distributing it to the UV lamps and discharge needles inside the purification module.

[0061] Specifically, the sealed moisture-proof box 8 adopts a multi-layered moisture-proof structure. A moisture-proof drying layer is provided on the inner wall of the box body 1 corresponding to the sealed moisture-proof box 8 (i.e., the part where the two are close together), which absorbs moisture that may penetrate in through physical adsorption. On the outer side of the sealed moisture-proof box 8, heat dissipation fins are provided to dissipate the heat generated by the power module and controller and prevent overheating and burnout.

[0062] This embodiment achieves physical isolation between the electronic control unit and the high-humidity air duct by using an external, independent, sealed moisture-proof box 8, combined with a drying layer and heat dissipation fins, which greatly improves the safe operating time of the whole machine in humid and harsh environments such as swimming pools and basements.

[0063] Preferably, this device is also equipped with a closed-loop intelligent feedback control system, with an ambient air quality sensor 31 and a temperature and humidity sensor 32 installed at the air inlet 3.

[0064] Among them, the ambient air quality sensor 31 captures the concentration of particulate matter and TVOC (total volatile organic compounds) in the air entering the unit in real time, while the temperature and humidity sensor 32 is responsible for measuring the temperature and humidity of the incoming air.

[0065] The storage module of the control unit 4 pre-stores graded air pollutant determination thresholds and temperature and humidity determination thresholds corresponding to constant temperature and humidity targets.

[0066] The control unit 4 has internal data comparison logic, which can automatically read the pollution values ​​and temperature and humidity values ​​detected in real time by the ambient air quality sensor 31, and compare these real-time data with the judgment thresholds in the storage module; thereby comprehensively determining the current pollution severity level and the degree to which the temperature and humidity deviate from the target range. Based on this comprehensive judgment result, the control unit 4 outputs multi-level power adjustment commands to the power drive module, thereby flexibly adjusting the number of dual-band UVC ultraviolet lamps 542 inside the nano-photohydrogen ion purification module 5 that are turned on, as well as the operating power of the high-voltage plasma discharge needle 56.

[0067] The intelligent graded adjustment technology in this embodiment reduces the purification power to save energy when the air pollution is light, and automatically increases the power for deep disinfection when the pollution is severe, which not only ensures air quality, but also achieves significant energy-saving and environmental protection effects.

[0068] Preferably, the control unit 4 is also internally connected to a relay module and a timer module.

[0069] To facilitate future maintenance and component replacement, the power cord of the nano-photonic hydrogen ion purification module 5 is not fixed with screws, but is connected to the relay module of the control unit 4 via a quick-connect aviation plug or waterproof terminal block.

[0070] When the dehumidifying heat pump unit receives a shutdown signal from the user, the control unit 4 does not immediately cut off the power completely. Instead, it first controls the compressor 12 to stop working, while maintaining the air supply fan 11 and the nano-photonic hydrogen ion purification module 5 in synchronous continuous operation for a short period of time. During this period, the built-in timer accumulates the actual total disinfection time. Only after the timer reaches the preset "delayed disinfection time" does the control unit 4, through the relay module, synchronously cut off the power supply circuit between the nano-photonic hydrogen ion purification module 5 and the air supply fan 11, thus completing the shutdown delayed disinfection process.

[0071] Compared to existing dehumidifiers that stop working immediately upon power failure, allowing residual bacteria and viruses in the air ducts to attach to the damp evaporator 13 surface and multiply, causing odors, the delayed disinfection design in this embodiment ensures a thorough self-cleaning of the internal channels before the device stops airflow, preventing mold and odor growth. At the same time, the quick-connect aviation plug design greatly reduces the cost and barrier to later filter replacement and maintenance.

[0072] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A constant-temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function, characterized in that: Includes a housing (1), with an air outlet (2) and an air inlet (3) at both ends of the housing (1). Inside the housing (1) are a blower (11), a compressor (12), an evaporator (13), a condenser (14), and a water collection tray (15). The blower (11) is located downstream of the condenser (14) and close to the air outlet (2), and is used to create a negative pressure inside the housing (1) to drive the airflow into the housing (1) through the air outlet (2) and out through the air inlet (3). The evaporator (13) and the condenser (14) are arranged in sequence along the airflow direction. The compressor (12), the evaporator (13), and the condenser (14) are connected by a refrigerant pipeline to form a heat pump circulation loop. It also includes a control unit (4) and a nano-photohydrogen ion purification module (5) disposed between the air inlet (3) and the evaporator (13). The nano-photohydrogen ion purification module (5) is used to perform a composite purification treatment on the airflow passing through it, including particulate matter interception, microbial inactivation and degradation of organic gaseous pollutants. The nano-photohydrogen ion purification module (5) is electrically connected to the control unit (4). The control unit (4) is configured to regulate the synchronous start and stop of the dehumidifying heat pump and the nano-photohydrogen ion purification module (5), the shutdown delay for disinfection, or the graded adjustment of the operating power according to the air pollutants and humidity parameters. The housing (1) is also equipped with an airflow guiding structure (6). The airflow guiding structure (6) is used to guide and divert the airflow that flows in from the air inlet (3) so that some of the airflow passes through the nano-photohydrogen ion purification module (5) to complete the purification process before entering the evaporator (13), and then guides another part of the airflow directly into the evaporator (13).

2. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 1, characterized in that: The nano-photohydrogen ion purification module (5) includes an outer frame (51), a flow-guiding buffer chamber (52) arranged sequentially in the outer frame (51) along the airflow inflow direction, a primary filter layer (53), and a photohydrogen ion catalytic sterilization unit (54); the windward side of the flow-guiding buffer chamber (52) is provided with a flared structure, and its internal cross-sectional area is larger than the inlet cross-sectional area; the primary filter layer (53) includes a detachable pre-filter and a fine filter layer located behind it.

3. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 2, characterized in that: The photocatalytic hydrogen ion sterilization unit (54) includes a first support (541), a dual-band UVC ultraviolet lamp (542) disposed on the first support (541), and a catalyst carrier layer (543); the control unit (4) is electrically connected to the dual-band UVC ultraviolet lamp (542); multiple dual-band UVC ultraviolet lamps (542) are provided and arranged on the windward side of the catalyst carrier layer (543); the catalyst carrier layer (543) is provided with multiple honeycomb structure through holes (544); the catalyst carrier is an aluminum-based carrier with titanium dioxide coated on its surface; the extension direction of the dual-band UVC ultraviolet lamp (542) is perpendicular to the opening direction of the through holes (544) of the catalyst carrier.

4. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 2, characterized in that: The housing (1) is provided with a module mounting cavity (16). The outer frame (51) is provided with an annular sealing sponge strip around its outer edge. When the nano-photohydrogen ion purification module (5) is installed in the module mounting cavity (16), the sealing sponge strip fits tightly against the inner wall of the module mounting cavity (16).

5. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 3, characterized in that: The photocatalytic sterilization unit (54) also includes a second support (55) located behind the first support (541) along the airflow direction, a high-voltage plasma discharge needle (56) and a second filter (57) mounted on the second support (55); the control unit (4) is electrically connected to the high-voltage plasma discharge needle (56); the second filter (57) is a corrugated filter with a titanium dioxide coating on its surface; the tip of the high-voltage plasma discharge needle (56) points in the direction of airflow entry; the dual-band UVC ultraviolet lamp (542) and the high-voltage plasma discharge needle (56) together form a sterilization structure with the synergistic effect of plasma and photocatalysis.

6. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 1, characterized in that: The airflow guiding structure (6) includes a first plate (61), a second plate (62) and a third plate (63) disposed in the housing (1). The first plate (61) and the third plate (63) are parallel to each other. The first plate (61), the second plate (62) and the third plate (63) are arranged in sequence along the airflow direction and cooperate to form a "U" shaped structure. The first plate (61) is disposed near the air inlet (3), the third plate (63) is disposed near the evaporator (13), and the second plate (62) is disposed corresponding to the nano-photohydrogen ion purification module (5). A circular first pressure equalization and diversion hole (611) is opened on the first plate (61), and a circular second pressure equalization and diversion hole (621) is opened on the second plate (62). The first pressure equalization and diversion hole (611) and the second pressure equalization and diversion hole (621) are used to depressurize and equalize the airflow entering from the air inlet (3).

7. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 1, characterized in that: The housing (1) is provided with a fresh air inlet (17) for introducing outdoor air at the air outlet (2); the fresh air inlet (17) is provided with an adjustable air valve (7), the adjustable air valve (7) has a drive motor (71) and a damper actuator (72), the damper actuator (72) is electrically connected to the control unit (4), the control unit (4) is used to output an opening control command to the damper actuator (72) to adjust the fresh air volume entering the housing (1) through the fresh air inlet (17).

8. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 1, characterized in that: The bottom of the water receiving tray (15) is provided with an electric heating defrosting component (18). The electric heating defrosting component (18) is electrically connected to the control unit (4). The control unit (4) is used to control the electric heating defrosting component (18) to be powered on and heated when the dehumidification heat pump is in a low temperature condition, so as to melt the condensed ice in the water receiving tray (15).

9. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 1, characterized in that: The outer wall of the box (1) is provided with a sealed moisture-proof box (8), and the control unit (4) is set inside the sealed moisture-proof box (8). The sealed moisture-proof box (8) is provided with a power drive module, which is electrically connected between the nano-photohydrogen ion purification module (5) and the control unit (4). The inner wall of the box (1) corresponding to the sealed moisture-proof box (8) is provided with a moisture-proof drying layer, and the outer side of the sealed moisture-proof box (8) is provided with heat dissipation fins.

10. The constant temperature dehumidifying heat pump with nano-photohydrogen ion sterilization and purification function according to claim 3, characterized in that: It also includes an ambient air quality sensor (31) and a temperature and humidity sensor (32) installed at the air inlet (3). The ambient air quality sensor (31) is used to detect the concentration of particulate matter and TVOC in the airflow entering the air inlet (3), and the temperature and humidity sensor (32) is used to detect the temperature and humidity of the airflow entering the air inlet (3). The control unit (4) has a storage module, which stores the graded air pollutant judgment threshold and the temperature and humidity judgment threshold corresponding to the constant temperature and humidity target. The control unit (4) has built-in data comparison logic, which is used to obtain the real-time pollutant detection values ​​output by the ambient air quality sensor (31) and the real-time temperature and humidity detection values ​​output by the temperature and humidity sensor (32), and compare the real-time pollutant detection values ​​and the real-time temperature and humidity detection values ​​with the corresponding air pollutant judgment threshold and temperature and humidity judgment threshold in the storage module. The control unit (4) outputs a multi-level power adjustment command corresponding to the corresponding gear to the power drive module of the nano-photohydrogen ion purification module (5) based on the comprehensive judgment result of pollution level and temperature and humidity deviation range obtained by numerical comparison, so as to control the number of dual-band UVC ultraviolet lamps (542) inside the nano-photohydrogen ion purification module (5).

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