Air conditioner with automatic dust removal and air purification functions

Abstract

The invention relates to an air conditioner with automatic dust removal and air purification functions, which comprises a case as well as a compressor, a four-way valve, a heat exchanger, an expansion valve, an evaporator and a fan which are arranged in the case, and the compressor, the heat exchanger, the expansion valve and the evaporator form a circulation loop. The case is provided with an air inlet and an air outlet, an automatic dust removal module is arranged at the air inlet and comprises a driving winding drum, a driven winding drum and a driving mechanism, and dust removal is achieved by winding dirty filter cloth and releasing clean filter cloth. An air purification module is arranged in the case, the UV photocatalyst set is sequentially provided with a first photocatalyst piece, an activated carbon base body and a second photocatalyst piece, a UV lamp and an ozone lamp are arranged among the first photocatalyst piece, the activated carbon base body and the second photocatalyst piece, and a negative-ion generator is arranged at the air inlet of the fan. The air conditioner can automatically update the filter cloth to remove dust, multi-stage air purification is achieved through a photocatalyst, activated carbon, ozone, negative ions and the like, and the air quality and the equipment operation efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to an air conditioner with automatic dust removal and air purification. Background Art

[0002] Most existing traditional industrial air conditioning systems focus on basic cooling and heating functions, lacking an integrated air purification module and an automatic dust removal mechanism. On the one hand, in industrial scenarios such as chemical industry and food processing where there are odors and dust pollution such as volatile organic compounds and hydrogen sulfide, the open duct structure of traditional air conditioners cannot actively adsorb and decompose odor molecules and harmful pollutants. Instead, it is easy for pollutants to accumulate in the duct, forming a secondary aerosol pollution source, and it is difficult to meet the strict requirements for air quality in industrial sites. On the other hand, traditional air conditioners generally use fixed filters for air filtration. As the usage time increases, a large amount of particulate matter, oil stains, and microbial pollutants accumulate on the filter surface, which not only reduces the air circulation efficiency and affects the cooling and heating performance of the air conditioner, but also lacks an automatic cleaning and replacement mechanism, and requires frequent manual disassembly, cleaning, and maintenance or filter replacement. This not only significantly increases labor costs and downtime losses, but also in special working environments such as space-intensive factories and explosion-proof places, there are physical installation adaptability obstacles and safety hazards in the complex filter maintenance operations, and it is difficult to meet the requirements of modern industry for the efficient, intelligent, and safe operation of equipment, forming multi-dimensional technical application bottlenecks. Summary of the Invention

[0003] Object of the present invention: In order to overcome the defects of the prior art, the present invention provides an air conditioner with automatic dust removal and air purification, which realizes the continuous supply and automatic update of the filter cloth, as well as the decomposition of harmful gases, the killing of microorganisms, and the elimination of odors.

[0004] Technical solution of the present invention: An air conditioner with automatic dust removal and air purification, including a chassis and a compressor, a four-way valve, a heat exchanger, an expansion valve, an evaporator, and a blower disposed in the chassis. Among them, the compressor, the four-way valve, the heat exchanger, the expansion valve, and the evaporator form a circulation loop. The chassis is provided with an air inlet and an air outlet, and further includes: An automatic dust removal module, which is disposed at the air inlet of the chassis. The automatic dust removal module includes a driving reel, a driven reel, and a driving mechanism for driving the driving reel to rotate. Among them, the driving reel and the driven reel are separately arranged and are used for winding the two ends of the filter cloth respectively. The filter cloth covers the air inlet. The driving reel rotates to wind up the dirty section of the filter cloth between the two reels and simultaneously drives the driven reel to rotate to release the clean section of the filter cloth; An air purification module is disposed inside the chassis. The air purification module includes a UV photocatalyst group and an anion generator. The UV photocatalyst group is disposed behind the automatic dust removal module, and a first photocatalyst sheet, an activated carbon matrix, and a second photocatalyst sheet are sequentially arranged. UV lamps are respectively disposed between the activated carbon matrix and the first photocatalyst sheet and between the activated carbon matrix and the second photocatalyst sheet, and an ozone lamp is further disposed between the activated carbon matrix and the first photocatalyst sheet. The anion generator is disposed at the air inlet of the fan.

[0005] By adopting the above technical solutions, through the combination of the innovative automatic dust removal module and the air purification module, the performance and user experience of the air conditioner are significantly improved. The automatic dust removal module can pre-dust the air entering the chassis in real time, effectively preventing dust and other impurities from entering the interior of the air conditioner, thereby extending the service life of the air conditioner and reducing the maintenance cost at the same time. The design of the driving drum and the driven drum makes it more convenient to replace the filter cloth, effectively avoiding the cumbersome process of manual frequent disassembly and cleaning maintenance, greatly reducing the labor cost and downtime loss, and improving the continuous operation efficiency of the industrial air conditioner. While the driving mechanism works to drive the driving drum to wind up the dirty section of the filter cloth, the filter cloth pulls and drives the driven drum to rotate to release the clean section of the filter cloth, thereby realizing the continuous supply and automatic update of the filter cloth.

[0006] The air purification module further purifies the air deeply. The catalyst + UV light oxygen realizes the decomposition of organic substances, the activated carbon adsorbs odor molecules, the ozone disinfects microorganisms, and the negative ions settle dust, covering typical pollutants in industrial scenarios. Activated carbon, with its porous structure and large specific surface area, has a strong adsorption capacity for harmful gases in the air such as formaldehyde, benzene, TVOC, etc., can effectively remove odors and make the air fresher. The photocatalyst sheet, under the irradiation of UV light, has strong oxidizing properties, can decompose organic pollutants in the air into harmless substances such as carbon dioxide and water, and can also kill bacteria and viruses, playing a dual role of purification and disinfection. The UV lamp provides ultraviolet light with a specific wavelength to stimulate the photocatalyst sheet to produce a photocatalytic reaction. At the same time, the ultraviolet light itself also has a certain bactericidal effect, which can damage the DNA structure of bacteria and viruses and inhibit their growth and reproduction. The ozone lamp produces ozone with strong oxidizing properties, which can quickly decompose harmful gases and odor substances in the air, and can also kill bacteria, viruses, molds and other microorganisms, with a significant disinfection effect. There is a certain cooperation effect between the negative ion generator and the activated carbon, photocatalyst sheet, UV lamp and ozone lamp in air purification: Cooperating with the activated carbon: The activated carbon adsorbs harmful gases, and the negative ions settle the particulate matter in the air. The two work together to purify the air from two aspects of adsorbing gaseous pollutants and reducing solid particulate matter. Cooperating with the photocatalyst sheet and UV lamp: The UV lamp stimulates the photocatalyst sheet to carry out a photocatalytic reaction to decompose harmful substances, and the negative ions can also decompose some harmful gases. At the same time, the negative ions can improve the air ion balance and make the air fresher, jointly enhancing the purification effect with the photocatalyst sheet and UV lamp. Cooperating with the ozone lamp: The ozone lamp produces ozone to disinfect and decompose harmful gases, and the negative ions also have a bactericidal effect and can reduce dust. The two work together to play a greater role in disinfection and air purification. And in the above UV photocatalyst group, through the UV photocatalytic regeneration technology, the service life of the activated carbon can be extended by - times, reducing the replacement frequency and lowering the maintenance cost.

[0007] In summary, the refrigeration and air-conditioning machine of the present invention has excellent automatic dust removal and air purification functions.

[0008] A further setting of the present invention: The automatic dust removal module further includes an air volume sensor and a filter cloth monitor, both of which are electrically connected to the driving mechanism. The air volume sensor is used to monitor the air volume during the operation of the air conditioner, and when the air volume exceeds a preset threshold, it triggers the driving mechanism to start; the filter cloth monitor is used to detect the winding length of the filter cloth, and when it reaches the set length, it triggers the driving mechanism to stop. The driving mechanism is a stepping motor.

[0009] With the above further settings, the clogging state of the filter cloth is judged by monitoring the air volume. After the filter cloth is clogged to a certain extent, the driving mechanism is automatically triggered to open, realizing the replacement of the filter cloth and reducing the frequency of manual maintenance. When the filter cloth is wound to the preset length, the filter cloth monitor can accurately detect this change and trigger the driving mechanism to stop working, effectively avoiding the problems of damage or clogging caused by over-winding of the filter cloth.

[0010] A further setting of the present invention: The air volume sensor can simultaneously monitor the air volume at the air inlet and the air outlet of the air conditioner. When the difference between the air volumes of the inlet air and the outlet air exceeds the preset threshold, the driving mechanism is triggered to open; The filter cloth monitor is a distance sensor, a position sensor or a photoelectric sensor.

[0011] With the above further settings, this improvement not only improves the accuracy of air volume monitoring, but also further ensures the stable operation of the air conditioning system. When the difference in air volume between the air inlet and the air outlet increases abnormally, it often means that the filter cloth is severely clogged. At this time, triggering the driving mechanism to open for filter cloth replacement in time can effectively prevent the performance of the air conditioning system from decreasing due to filter cloth clogging, and even avoid malfunction shutdown caused by clogging, thereby further improving the reliability and service life of the industrial air conditioner.

[0012] A further setting of the present invention: The driving reel and the driven reel are rotatably installed on the first housing. The first housing is provided with a first accommodating chamber, a second accommodating chamber and a first ventilation opening located between the two accommodating chambers. The driving reel and the driven reel are respectively installed in the first accommodating chamber and the second accommodating chamber. The filter cloth passes through the notch on the two accommodating chambers and covers the first ventilation opening. The first housing is installed on the chassis, and the filter cloth covers the air inlet of the chassis.

[0013] With the above further settings, through the design of the first ventilation opening and the two accommodating chambers on the first housing, the positions of the driving reel and the driven reel can be cleverly arranged, so that the filter cloth can smoothly pass through the two end accommodating chambers and cover the middle ventilation opening. And the design of the notch not only makes it more convenient for the filter cloth to pass through, but also facilitates the maintenance and replacement of the filter cloth.

[0014] A further setting of the present invention: The ozone lamp and multiple UV lamps provided between the activated carbon matrix and the photocatalyst sheet one are arranged at equal intervals up and down, and the multiple UV lamps provided between the activated carbon matrix and the photocatalyst sheet two are arranged at equal intervals up and down; Among them, the UV lamp and the ozone lamp are in a long tubular structure.

[0015] With the above further settings, the long tubular design of the UV lamp and the ozone lamp and the spaced arrangement of multiple UV lamps in the vertical direction result in a larger irradiation area, thereby improving the efficiency of the photocatalytic reaction and further ensuring that harmful gases in all levels of the activated carbon matrix can be effectively decomposed. This design not only enhances the air purification effect but also optimizes the utilization rate of the photocatalyst, making the performance of the entire air purification module more stable and efficient. The equal-spacing arrangement of multiple lamps in the vertical direction not only ensures the uniformity of sterilization and decomposition of harmful gases but also further improves the air purification efficiency. This arrangement enables ozone and UV light to come into more sufficient contact with pollutants in the air, thus more effectively removing harmful substances.

[0016] A further further setting of the present invention: The UV photocatalyst assembly is disposed in the second housing and is arranged corresponding to the second ventilation opening provided on the second housing. The second housing has an open structure, and the photocatalyst sheet one, the activated carbon matrix, and the photocatalyst sheet two are all inserted into the second housing from the open end and respectively form an insertion and mating installation structure with the second housing; A fixing bracket is provided in the second housing, and the UV lamp and the ozone lamp are detachably installed on the fixing bracket, and the second housing is installed in the chassis.

[0017] With the above further settings, this design enables the photocatalyst sheet and the activated carbon matrix to be easily replaced or cleaned, thereby extending the service life of the air purification module and maintaining its purification effect. Users only need to perform simple operations to take out the aged photocatalyst sheet or the saturated activated carbon matrix and install new components without overall disassembly, greatly improving the convenience and efficiency of maintenance. The insertion and mating installation structure facilitates the quick disassembly and assembly of the photocatalyst sheet and the activated carbon matrix, and the open design facilitates the insertion and removal of each component.

[0018] A further further setting of the present invention: The fixing bracket is provided with a clip, and the clip is composed of a pair of clamping arms forming a clamping hole. The pair of clamping arms can generate elastic deformation to clamp or loosen the lamp, and the ends of the pair of clamping arms are bent away from each other, thereby forming a V-shaped opening at one end of the clamping hole.

[0019] With the above further settings, the design of the fixing bracket ensures the stable installation of the UV lamp and the ozone lamp. And the pair of clamping arms of the clip can clamp the lamp tube through elastic deformation to prevent loosening or falling off; at the same time, the design of the V-shaped opening makes the installation and disassembly of the lamp tube simpler and faster, improving the operation efficiency.

[0020] A further improvement of the present invention: The second housing includes a substrate and side frames located at opposite ends of the substrate. Both ends of the activated carbon matrix are respectively formed with insertion and installation structures with the two side frames; baffles are respectively provided on both sides of the side frames. Two groups of fixing brackets are provided inside the second housing. A first insertion space is formed between one group of fixing brackets and the adjacent baffle, and the first photocatalyst sheet is inserted and installed in the first insertion space; a second insertion space is formed between the other group of fixing brackets and the adjacent baffle, and the second photocatalyst sheet is inserted and installed in the second insertion space; The lamp is installed on the side of the fixing bracket facing the activated carbon matrix.

[0021] With the above further improvement, the design of the two side frames provides stable insertion and installation support for the activated carbon matrix; and the baffle and the fixing bracket on the same side cooperate to limit and fix the photocatalyst sheet, so that the photocatalyst sheet can be stably installed in the second housing, avoiding shaking or displacement during operation, thus ensuring the purification effect. At the same time, the lamp is installed on the side of the fixing bracket facing the activated carbon matrix, which is convenient for providing light for the photocatalyst sheet, enabling it to fully play the catalytic decomposition role.

[0022] A further improvement of the present invention: The air inlet is provided on the front side of the chassis, and the air outlet is provided on the rear side. The automatic dust removal module, the UV photocatalyst group, the evaporator and the fan are arranged in sequence along the front-rear direction of the chassis. The first photocatalyst sheet, the activated carbon matrix and the second photocatalyst sheet of the UV photocatalyst group are also arranged in sequence along the front-rear direction.

[0023] With the above further improvement, such a layout design not only makes the entire air purification process smoother, but also makes the space utilization between components more reasonable. The automatic dust removal module is located at the front end, which can effectively intercept and remove the dust and impurities entering the chassis, maintaining the initial effect of air purification. The UV photocatalyst group follows closely. Its first photocatalyst sheet, activated carbon matrix and second photocatalyst sheet are arranged in sequence, which can make full use of light for catalytic decomposition and effectively remove harmful substances in the air. The activated carbon matrix can not only adsorb odors and harmful gases, but also further purify the air. Subsequently, it is purified by the negative ion generator and finally blown out by the fan, realizing the functions of refrigeration, heating and air purification of the air conditioner. The whole design is compact in structure and comprehensive in function, providing a more comfortable and healthy indoor environment for users.

[0024] A further configuration of the present invention is as follows: The exhaust port of the compressor is connected to a four-way valve and is used to deliver the refrigerant to the four-way valve; the four-way valve is respectively connected to a heat exchanger and an evaporator and is used to control the flow direction of the refrigerant to the heat exchanger or the evaporator; the heat exchanger and the evaporator are connected through an expansion valve, wherein the evaporator adopts a multi-row straight copper tube structure and is equipped with aluminum fins; the expansion valve includes a valve body, a temperature sensing bulb and a balance tube. The temperature sensing bulb is sleeved on the outlet pipe of the evaporator to sense the superheated vapor temperature at the outlet of the evaporator in real time, and transmits the saturated pressure signal at the corresponding temperature to the valve body to adjust the refrigerant flow rate; the heat exchanger is a brazed plate heat exchanger, and its heat transfer area is formed by brazing a plurality of adjacent corrugated plates with a nickel-based filler metal; the fan is a centrifugal fan, including a casing, an impeller and a motor, and is used to realize air delivery.

[0025] With the above further configuration, the core of the evaporator lies in combining the phase change heat absorption of the refrigerant with the forced convection of air. The temperature is transferred through multi-row straight copper tubes, and the fins disperse the heat generated in the pipeline cycle to achieve the balance of the temperature zone of the liquid in the cycle, realizing efficient heat absorption and transfer. The brazed plate heat exchanger enables the cold and hot fluids to flow reversely or crosswise between adjacent plates, and forms a complex path through the corrugation guide, maximizing heat exchange and having a high heat transfer coefficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a specific embodiment of the present invention; Figure 2 It is one of the internal structural diagrams of a specific embodiment of the present invention; Figure 3 It is the second internal structural diagram of a specific embodiment of the present invention; Figure 4 It is a structural diagram of the automatic dust removal module in a specific embodiment of the present invention; Figure 5 It is a structural diagram of the filter cloth in a specific embodiment of the present invention; Figure 6 It is a structural diagram of the UV photocatalyst group in a specific embodiment of the present invention; Figure 7 It is the internal structural diagram of the UV photocatalyst group in a specific embodiment of the present invention; Figure 8 It is a structural diagram of the clip in a specific embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0028] As Figure 1-8 shown, an air conditioner with automatic dust removal and air purification according to the present invention includes a chassis 1 and a compressor 21, a four-way valve 22, a heat exchanger 23, an expansion valve 24, an evaporator 25, and a fan 26 disposed inside the chassis. Among them, the compressor 21, the four-way valve 22, the heat exchanger 23, the expansion valve 24, and the evaporator 25 form a circulation loop. An air inlet 11 and an air outlet 12 are provided on the chassis 1. The exhaust port of the compressor 21 is connected to the four-way valve 22 and is used to convey the refrigerant to the four-way valve. The four-way valve 22 is respectively connected to the heat exchanger 23 and the evaporator 25 and is used to control the flow direction of the refrigerant to the heat exchanger 23 or the evaporator 25. The heat exchanger 23 and the evaporator 25 are connected through the expansion valve 24. Among them, the evaporator 25 adopts a multi-row straight copper tube structure and is equipped with aluminum fins. The expansion valve 24 includes a valve body, a temperature sensing bulb, and a balance tube. The temperature sensing bulb is sleeved on the evaporator outlet pipe, and the superheated steam temperature at the evaporator outlet is sensed in real time, and the saturated pressure signal at the corresponding temperature is transmitted to the valve body to adjust the refrigerant flow rate. The heat exchanger 23 is a brazed plate heat exchanger, and its heat transfer area is formed by brazing a plurality of adjacent corrugated plates with a nickel-based filler metal. The fan 26 is a centrifugal fan, including a casing, an impeller, and a motor, and is used to realize air delivery.

[0029] The operating principle of the air conditioner is as follows. In the refrigeration mode, the refrigerant circulation path is: Compressor (compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas) → four-way valve → heat exchanger (condenses the gaseous refrigerant) → expansion valve (throttles and depressurizes the liquid refrigerant into a low-temperature and low-pressure misty liquid) → evaporator (evaporates the low-temperature refrigerant into a low-temperature and low-pressure gas, and at the same time cools the air, and the cold air is blown out by the fan to realize refrigeration) → four-way valve → compressor, forming a closed refrigeration cycle loop.

[0030] In the heating mode, the refrigerant circulation path is: Compressor (compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas) → four-way valve → evaporator (the refrigerant condenses into a high-pressure liquid and heats the air, and the hot air is blown out by the fan to realize heating) → expansion valve (throttles and depressurizes the high-pressure liquid refrigerant into a low-temperature and low-pressure wet steam state) → heat exchanger (the refrigerant evaporates into a low-temperature gas) → four-way valve → compressor, forming a closed heating cycle loop.

[0031] An automatic dust removal module 3 is provided at the air inlet 11 of the chassis 1. The automatic dust removal module 3 includes a driving reel 31, a driven reel 32, and a driving mechanism 33 for driving the driving reel to rotate. The driving reel 31 and the driven reel 32 are separately arranged and are used for winding the two ends of the filter cloth 34 respectively. The filter cloth covers the air inlet. The driving reel 31 rotates to wind the dirty section of the filter cloth between the two reels and simultaneously drives the driven reel 32 to rotate to release the clean section of the filter cloth. The automatic dust removal module 3 further includes an air volume sensor 35 and a filter cloth monitor 36, both of which are electrically connected to the driving mechanism 33. The air volume sensor 35 is arranged inside the chassis and is used to monitor the air volume of the air conditioner during operation. When the air volume exceeds a preset threshold, the driving mechanism 33 is triggered to start. The air volume sensor 35 can simultaneously monitor the air volume at the air inlet and the air outlet of the air conditioner. When the air volume difference between the inlet air and the outlet air exceeds the preset threshold, the driving mechanism 33 will receive a start signal and start working. During operation, after the air volume sensor measures the air volume at the air inlet and the air outlet respectively, these two data are transmitted to the control system. The control system calculates the air volume difference between the inlet air and the outlet air and compares it with the preset threshold. Under normal conditions (the filter cloth is clean), the air volume of the outlet air is almost equal to that of the inlet air. When the filter cloth is blocked, the resistance of the air passing through the filter cloth increases, resulting in a decrease in the air volume entering the air conditioning system. The air volume at the air outlet of the air conditioner is relatively less affected because the air conditioner fan still operates at a normal speed and tries to send out the air. Therefore, the air volume at the air inlet decreases, and the air volume at the air outlet is relatively stable, and the difference between the two will increase. When the difference exceeds the set threshold, there may be problems such as filter screen blockage. The preset threshold is determined according to the model, specifications of the air conditioner, as well as the actual use scenario and purification requirements. Different models of air conditioners have different air volume ranges during normal operation, and in different usage environments, the requirements for air purification are also different. Of course, it can also be directly judged that the filter cloth is severely blocked when the air volume at the air inlet of the air conditioner decreases to a certain extent, such as the inlet air volume is less than 50% or 40% of the normal state. The filter cloth monitor 36 is used to detect the winding length of the filter cloth. When the set length is reached, the driving mechanism 33 is triggered to stop. The filter cloth monitor 36 is a distance sensor, a position sensor, or an optical sensor. The driving mechanism 33 is a stepping motor. The output shaft of the stepping motor is directly connected to the driving reel or indirectly driven, such as by belt drive, sprocket chain drive, or gear drive, etc. Of course, it can also be driven by other mechanisms to rotate the driving reel. The single rotation angle of the driving reel can be controlled by the stepping motor. The distance sensor is installed on the housing and can be arranged close to the filter cloth. The distance sensor is also called a displacement sensor, which can directly measure the linear displacement distance of the filter cloth to obtain the winding length of the filter cloth; or measure the rotational displacement of the driving reel and convert the rotational displacement into a linear displacement to obtain the winding length of the filter cloth.For the photoelectric sensor, equally spaced marks can be set on the filter cloth. The photoelectric sensor calculates the moving distance of the filter cloth by detecting the number of times the marks pass, and then obtains the winding length. When the filter cloth monitor detects that the winding length of the filter cloth reaches the set length, i.e., the filter cloth is completely released, the driving mechanism stops; it can also detect the single winding length of the filter cloth. When the driving mechanism is started to replace the filter cloth with a new clean section, after the filter cloth monitor detects that the winding length of the filter cloth meets the single replacement requirement, the driving mechanism will receive a stop signal and stop working. After detecting that the filter cloth is completely released, the filter cloth monitor can prompt the operator to replace the filter cloth in various ways. Such as a buzzer, an indicator light, a display screen, etc. The filter cloth monitor transmits the detected signal to the control system. After receiving the signal, the control system gives a prompt in the form of sound, light or text to inform the operator to replace the filter cloth. The driving drum 31 and the driven drum 32 are rotatably installed on the first housing 37. The first housing 37 is provided with a first accommodation chamber 371, a second accommodation chamber 372 and a first ventilation opening 373 located between the two accommodation chambers. The driving drum 31 and the driven drum 32 are respectively installed in the first accommodation chamber 371 and the second accommodation chamber 372. The filter cloth 34 passes through the notch on the two accommodation chambers and covers the first ventilation opening 373. The first housing 37 is installed on the chassis 1, and the filter cloth 34 covers the air inlet 11 of the chassis. When the air inlet 11 is provided on the front side of the chassis 1, the first housing can be integrally or fixedly installed on the outer side of the front end of the housing, and there is a notch behind the accommodation chamber. The filter cloth passes through the notch and covers the rear side of the first ventilation opening and the front side of the air inlet 11. Tension rollers are provided on the housing, and one tension roller is provided beside the driving drum and the driven drum respectively. The tension rollers abut against the filter cloth. For example, if the tension rollers are installed on the spring telescopic rods, they can be driven to elastically abut against the filter cloth. The above driving mechanism can also be manually turned on or off.

[0032] Working principle of the automatic dust removal module: When the air conditioner is running, the air volume sensor continuously monitors the air volume of the air inlet and the air outlet. If the difference in air volume between the air inlet and the air outlet exceeds the preset threshold, it indicates that the filter cloth may be blocked and affect the normal operation of the air conditioner. At this time, the air volume sensor will trigger the driving mechanism to start. The driving mechanism drives the driving drum to rotate, winds up the dirty section of the filter cloth, and at the same time drives the driven drum to rotate to release the clean section of the filter cloth, so as to realize the automatic update of the filter cloth. The filter cloth monitor monitors the winding length of the filter cloth in real time. When the filter cloth is wound to the preset length, it triggers the driving mechanism to stop working. At the same time, a prompt signal is sent after the filter cloth is completely released, so as to remind the operator to replace the new filter cloth in time.

[0033] An air purification module 4 is disposed inside the chassis 1. The air purification module includes a UV photocatalyst group 41 and an anion generator 42. The UV photocatalyst group 41 is disposed behind the automatic dust removal module 3, and a first photocatalyst sheet 411, an activated carbon matrix 412, and a second photocatalyst sheet 413 are sequentially arranged. UV lamps 414 are respectively disposed between the activated carbon matrix 412 and the first photocatalyst sheet 411 and the second photocatalyst sheet 413, and an ozone lamp 415 is further disposed between the activated carbon matrix 412 and the first photocatalyst sheet 411. The anion generator 42 is disposed at the air inlet of the fan. The ozone lamp 415 and the multiple UV lamps 414 disposed between the activated carbon matrix 412 and the first photocatalyst sheet 411 are arranged at equal intervals up and down. The multiple UV lamps 414 disposed between the activated carbon matrix 412 and the second photocatalyst sheet 413 are arranged at equal intervals up and down; wherein the UV lamps 414 and the ozone lamp 415 are in a long tubular structure. The UV photocatalyst group 41 is installed in a second housing 43 and is disposed corresponding to a second ventilation opening opened on the second housing 43. The second housing 43 has an open structure. The first photocatalyst sheet 411, the activated carbon matrix 412, and the second photocatalyst sheet 413 are all inserted into the second housing 43 from the open end and respectively form an insertion and installation structure with the second housing 43; a fixing bracket 433 is disposed inside the second housing 43. The UV lamps 414 and the ozone lamp 415 are detachably installed on the fixing bracket 433. The second housing 43 is installed inside the chassis 1. The fixing bracket 433 is provided with a plurality of clamping clips 434 arranged at intervals up and down. The clamping clip 434 is composed of a pair of clamping arms 4341 to form a clamping hole 4342. The pair of clamping arms 4341 can generate elastic deformation to clamp or loosen the lamp, and the ends of the pair of clamping arms 4341 are bent away from each other, so as to form a V-shaped opening 43421 at one end of the clamping hole. Multiple lamp tubes are respectively clamped with the clamping clips. Both ends of the lamp tube can be fixed by the fixing bracket. The second housing 43 includes a substrate 431 and side frames 432 located at opposite ends of the substrate. Both ends of the activated carbon matrix 412 respectively form an insertion and installation structure with the two side frames 432, and the two side frames are provided with slots for the activated carbon matrix to be inserted; baffles 4321 are respectively disposed on both sides of the side frame 432. Two groups of fixing brackets 433 are disposed inside the second housing 43. A first insertion space is formed between a group of fixing brackets 433 and the adjacent baffle 4321, and the first photocatalyst sheet 411 is inserted and installed in the first insertion space; another group of fixing brackets 433 and the adjacent baffle 4321 form a second insertion space, and the second photocatalyst sheet 413 is inserted and installed in the second insertion space; the UV lamps 414 and the ozone lamp 415 are installed on the side of the fixing bracket 433 facing the activated carbon matrix 412. The outer frames are wrapped outside the first photocatalyst sheet, the activated carbon matrix, and the second photocatalyst sheet, and the insertion and installation in the housing are realized through the outer frames.

[0034] Specifically, an air inlet 11 is provided at the front side of the chassis 1, and an air outlet 12 is provided at the rear side. The automatic dust removal module 3, the UV photocatalyst group 41, the evaporator 25, and the fan 26 are arranged in sequence along the front-back direction of the chassis 1. The photocatalyst sheet one 411, the activated carbon matrix 412, and the photocatalyst sheet two 413 of the UV photocatalyst group 41 are also arranged in sequence along the front-back direction. At the left and right ends of the second housing substrate of the air purification module, side frames are respectively fixed or integrally provided, and baffles are respectively provided on the front and rear sides of the side frames. The photocatalyst sheet one is inserted and installed between the front baffle and the front group of fixing brackets, and the photocatalyst sheet two is inserted and installed between the rear baffle and the rear group of fixing brackets. The upper end of the second housing is of an open structure, and the upper end of the chassis has an openable lid 13; the driving reel 31 and the driven reel 32 in the automatic dust removal module 3 are distributed at the left and right ends, and at this time the air conditioner is in a horizontal position. The air conditioner can also be in a vertical structure, and the driving reel 31 and the driven reel 32 in the automatic dust removal module 3 are distributed at the upper and lower ends; at the upper and lower ends of the second housing substrate of the air purification module, side frames are respectively fixed or integrally provided, and the left or right end of the chassis has an openable lid.

[0035] Working principle of the air purification module: When the air conditioner is turned on, air passes through the second ventilation opening provided on the second housing, and will sequentially pass through pre-purification by the photocatalyst sheet one 411 → photo-oxygen activation catalysis by the front-side UV lamp 414 and disinfection by the ozone lamp 415 → adsorption and decomposition by the activated carbon matrix 412 → photo-oxygen activation decomposition by the rear-side UV lamp 414 → purification treatment by the photocatalyst sheet two 413 → negative ion precipitation by the negative ion generator 42. Thus, the functions of activating, adsorbing, and decomposing harmful gas molecules are realized, and the air is purified. When the air conditioner is turned off, the ozone lamp is turned off, and the UV lamp is turned on to continuously irradiate the activated carbon to catalyze the activated carbon matrix (titanium dioxide), and the harmful gas molecules adsorbed in the activated carbon are catalytically decomposed and released, restoring the adsorption capacity of the activated carbon and extending the service life of the consumables.

[0036] When the air conditioner of the present invention operates, the indoor air is first filtered by the automatic dust removal module, then the air is purified by the air purification module, and then blown out by the fan.

[0037] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back...) are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0038] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the description of the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "connected", "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An air conditioner with automatic dust removal and air purification, comprising a chassis (1), a compressor (21), a four-way valve (22), a heat exchanger (23), an expansion valve (24), an evaporator (25) and a blower (26) arranged inside the chassis, wherein the compressor (21), the four-way valve (22), the heat exchanger (23), the expansion valve (24) and the evaporator (25) form a circulation loop, and an air inlet (11) and an air outlet (12) are provided on the chassis (1), and it is characterized in that, It also includes: An automatic dust removal module (3), which is arranged at the air inlet (11) of the chassis (1). The automatic dust removal module (3) includes a driving reel (31), a driven reel (32) and a driving mechanism (33) for driving the driving reel to rotate. The driving reel (31) and the driven reel (32) are separated and used for winding the two ends of the filter cloth (34) respectively. The filter cloth covers the air inlet. The driving reel (31) rotates to wind the dirty section of the filter cloth between the two reels and simultaneously drives the driven reel (32) to rotate to release the clean section of the filter cloth; An air purification module (4), which is arranged inside the chassis (1). The air purification module includes a UV photocatalyst group (41) and an anion generator (42). The UV photocatalyst group (41) includes a first photocatalyst sheet (411), an activated carbon matrix (412) and a second photocatalyst sheet (413) arranged in sequence. UV lamps (414) are respectively arranged between the activated carbon matrix (412) and the first photocatalyst sheet (411) and the second photocatalyst sheet (413), and an ozone lamp (415) is also arranged between the activated carbon matrix (412) and the first photocatalyst sheet (411). The UV photocatalyst group (41) is arranged behind the automatic dust removal module (3), and the anion generator (42) is arranged at the air inlet of the fan.

2. The air conditioner according to claim 1, characterized in that: The automatic dust removal module (3) further includes an air volume sensor (35) and a filter cloth monitor (36), both of which are electrically connected to the driving mechanism (33). The air volume sensor (35) is arranged inside the chassis and used for monitoring the air volume of the air conditioner during operation. When the air volume exceeds a preset threshold, it triggers the driving mechanism (33) to start; the filter cloth monitor (36) is used for detecting the winding length of the filter cloth. When it reaches the set length, it triggers the driving mechanism (33) to stop. The driving mechanism (33) is a stepping motor.

3. The air conditioner according to claim 2, characterized in that: The air volume sensor (35) can simultaneously monitor the air volume at the air inlet and outlet of the air conditioner. When the air volume difference between the inlet and outlet exceeds the preset threshold, it triggers the driving mechanism (33) to start; the filter cloth monitor (36) is a distance sensor, a position sensor or a photoelectric sensor.

4. The air conditioner according to claim 2, characterized in that: The driving reel (31) and the driven reel (32) are rotatably installed on the first housing (37). The first housing (37) is provided with a first accommodation chamber (371), a second accommodation chamber (372) and a first ventilation opening (373) located between the two accommodation chambers. The driving reel (31) and the driven reel (32) are respectively installed in the first accommodation chamber (371) and the second accommodation chamber (372). The filter cloth (34) passes through the notch on the two accommodation chambers and covers the first ventilation opening (373). The first housing (37) is installed on the chassis (1) so that the filter cloth (34) covers the air inlet (11) of the chassis.

5. The air conditioner according to claim 1, characterized in that: An ozone lamp (415) and a plurality of UV lamps (414) arranged at equal intervals up and down are provided between the activated carbon matrix (412) and the first photocatalyst sheet (411), and a plurality of UV lamps (414) arranged at equal intervals up and down are provided between the activated carbon matrix (412) and the second photocatalyst sheet (413); wherein the UV lamps (414) and the ozone lamp (415) are in a long tubular structure.

6. The air conditioner according to claim 5, characterized in that: The UV photocatalyst group (41) is installed in the second housing (43) and is arranged corresponding to a second ventilation opening provided on the second housing (43). The second housing (43) has an open structure. The first photocatalyst sheet (411), the activated carbon matrix (412), and the second photocatalyst sheet (413) are all inserted into the second housing (43) from the open portion and respectively form an insertion and mating installation structure with the second housing (43); a fixing bracket (433) is provided in the second housing (43), and the UV lamps (414) and the ozone lamp (415) are detachably installed on the fixing bracket (433), and the second housing (43) is installed in the chassis (1).

7. The air conditioner according to claim 6, characterized in that: The fixing bracket (433) is provided with a clip (434). The clip (434) forms a clamping hole (4342) by a pair of clamping arms (4341). The pair of clamping arms (4341) can elastically deform to clamp or loosen the lamp, and the ends of the pair of clamping arms (4341) are bent away from each other, so as to form a V-shaped opening (43421) at one end of the clamping hole.

8. The air conditioner according to claim 6, characterized in that: The second housing (43) includes a base plate (431) and side frames (432) located at opposite ends of the base plate. The two ends of the activated carbon matrix (412) respectively form an insertion and mating installation structure with the two side frames (432); baffles (4321) are respectively provided on both sides of the side frames (432). Two groups of fixing brackets (433) are provided in the second housing (43). A first insertion and mating space is formed between a group of fixing brackets (433) and the adjacent baffle (4321), and the first photocatalyst sheet (411) is inserted and mated and installed in the first insertion and mating space; a second insertion and mating space is formed between the other group of fixing brackets (433) and the adjacent baffle (4321), and the second photocatalyst sheet (413) is inserted and mated and installed in the second insertion and mating space; the UV lamps (414) and the ozone lamp (415) are installed on the side of the fixing bracket (433) facing the activated carbon matrix (412).

9. The air conditioner according to any one of claims 1-8, characterized in that: The air inlet (11) is provided on the front side of the chassis (1), and the air outlet (12) is provided on the rear side. The automatic dust removal module (3), the UV photocatalyst group (41), the evaporator (25), and the fan (26) are arranged in sequence along the front-rear direction of the chassis (1), and the first photocatalyst sheet (411), the activated carbon matrix (412), and the second photocatalyst sheet (413) of the UV photocatalyst group (41) are also arranged in sequence along the front-rear direction.

10. The air conditioner according to any one of claims 1-8, characterized in that: The exhaust port of the compressor (21) is connected to a four-way valve (22) and is used to transport the refrigerant to the four-way valve; the four-way valve (22) is respectively connected to a heat exchanger (23) and an evaporator (25) and is used to control the refrigerant flow direction to the heat exchanger (23) or the evaporator (25); the heat exchanger (23) and the evaporator (25) are connected through an expansion valve (24), wherein the evaporator (25) adopts a multi-row straight copper tube structure and is equipped with aluminum fins; the expansion valve (24) includes a valve body, a temperature sensing bulb and a balance tube. The temperature sensing bulb is sleeved on the evaporator outlet pipe to sense the superheated steam temperature at the evaporator outlet in real time and transmit the saturated pressure signal at the corresponding temperature to the valve body to adjust the refrigerant flow rate; the heat exchanger (23) is a brazed plate heat exchanger, and its heat transfer area is formed by brazing a plurality of adjacent corrugated plates with a nickel-based filler metal; the fan (26) is a centrifugal fan, including a casing, an impeller and a motor, and is used to realize air transportation.

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