Air purification module, three-dimensional printing equipment and three-dimensional printing system

Abstract

The utility model relates to an air purification module, three-dimensional printing equipment and a three-dimensional printing system. The air purification module comprises an air inlet channel, a carrier unit, an illumination unit and an exhaust channel, and the carrier unit is loaded with a titanium dioxide photocatalyst; the illumination unit corresponds to the carrier unit and is used for emitting ultraviolet light; the exhaust channel communicates with the air inlet channel to form an airflow channel, the carrier unit and the illumination unit are both arranged in the airflow channel, and the airflow channel is used for communicating with a printing space where the three-dimensional printing equipment is located. According to the air purification module, the ultraviolet light emitted by the illumination unit and the titanium dioxide photocatalyst in the carrier unit are subjected to photochemical reaction, volatile organic compounds can be purified, meanwhile, due to the fact that the titanium dioxide photocatalyst in the carrier unit cannot be consumed, frequent replacement of the carrier unit can be avoided, and the service life of the air purification module is prolonged. The replacement frequency of the carrier unit and the photocatalyst can be reduced while the purification effect of the air purification module is improved.

Description

Technical Field

[0001] The present application relates to the field of three-dimensional printing technology, and in particular to an air purification module, a three-dimensional printing device, and a three-dimensional printing system. Background Art

[0002] With the increasing popularity of 3D printing technology, more and more companies and individuals are entering the field. However, during the use of 3D printers, 3D printer consumables themselves or during their reaction process can emit irritating gases, which can reduce the air quality of 3D printed parts or the printing space in which the 3D printer is located. When the printing space is poorly ventilated, workers in the printing space may experience physical discomfort, and in severe cases, even endanger their health.

[0003] In the prior art, air purification devices are installed to purify the air in the printing space. However, their filters typically only filter dust and gas, with limited effectiveness in filtering harmful substances such as volatile organic compounds (VOCs) in the air. Furthermore, to maintain the air purification effect of the air purification device, the filter element inside the air purification device must be replaced regularly. This results in excessive filter replacement frequency, which not only increases the operator's labor intensity but also significantly increases the cost of using the air purification device. Utility Model Content

[0004] The present application provides an air purification module, a three-dimensional printing device and a three-dimensional printing system to solve the technical problems in the prior art of poor filtering effect and high frequency of filter element replacement in air purification devices.

[0005] In a first aspect, the present application provides an air purification module, comprising:

[0006] Air intake duct;

[0007] A carrier unit, wherein the carrier unit is loaded with a titanium dioxide photocatalyst;

[0008] An illumination unit, which is arranged corresponding to the carrier unit and is used to emit ultraviolet light;

[0009] An exhaust channel is connected to the air inlet channel to form an air flow channel. The carrier unit and the illumination unit are both arranged in the air flow channel. The air flow channel is used to communicate with the printing space where the three-dimensional printing device is located.

[0010] Optionally, the carrier unit includes a photocatalyst filter element, and the photocatalyst filter element is arranged corresponding to the illumination unit.

[0011] Optionally, the carrier unit further includes one or more of an activated carbon filter element, a HEPA filter element, a particulate filter element, a fiber filter element and an electrostatic filter element.

[0012] Optionally, the air purification module further includes a fan assembly, which is arranged in the air flow channel.

[0013] In a second aspect, the present application provides a three-dimensional printing device, comprising the air purification module provided in the first aspect of the present application, the air purification module further comprising a module housing, wherein an air intake channel, a carrier unit, a lighting unit, and an exhaust channel are all disposed inside the module housing;

[0014] An air inlet and an air outlet are provided on the module housing. The air inlet is connected to the air inlet channel, and the air outlet is connected to the exhaust channel.

[0015] Optionally, the module housing and the carrier unit are detachably connected.

[0016] Optionally, the three-dimensional printing device further includes a printer housing, and the module housing and the printer housing are detachably connected.

[0017] Optionally, a first connecting portion is provided on the module housing, and a second connecting portion is provided on the printer housing, and the first connecting portion and the second connecting portion are connected by snapping, adsorption, adhesion or bolts.

[0018] As another optional technical solution, the three-dimensional printing device further includes a printer housing, and the printer housing and the module housing are an integrated structure.

[0019] Optionally, the air purification module is arranged inside the printer housing, and a avoidance portion is provided on the module housing.

[0020] In a third aspect, the present application provides a three-dimensional printing system, comprising the three-dimensional printing device provided in the second aspect of the present application, and further comprising a printing space, wherein the three-dimensional printing device is disposed in the printing space, and an air flow channel is connected to the printing space.

[0021] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0022] The air purification module provided in the embodiment of the present application is provided with a carrier unit and a lighting unit in the air flow channel, wherein the carrier unit is loaded with a titanium dioxide photocatalyst, and the lighting unit is used to emit ultraviolet light. The ultraviolet light emitted by the lighting unit undergoes a photochemical reaction with the titanium dioxide photocatalyst in the carrier unit, thereby achieving purification of volatile organic compounds. At the same time, since the photocatalyst in the carrier unit will not be consumed, frequent replacement of the carrier unit can be avoided, thereby improving the purification effect of the air purification module and reducing the replacement frequency of the carrier unit and the photocatalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent the same or similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0026] Figure 1 A cross-sectional view of an air purification module provided in an embodiment of the present application;

[0027] Figure 2 A partial cross-sectional view of a carrier unit provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of a three-dimensional printing device provided in an embodiment of the present application;

[0029] Figure 4 Schematic diagram of the air purification module provided in this embodiment Figure 1 ;

[0030] Figure 5 Schematic diagram of the structure of the air purification module provided in the embodiment of the present application Figure 1 ;

[0031] Figure 6 Schematic diagram of the structure of the air purification module provided in the embodiment of the present application Figure 2 ;

[0032] Figure 7 Schematic diagram of the structure of the air purification module provided in the embodiment of the present application Figure 3 ;

[0033] Figure 8 Schematic diagram of the air purification module provided in this embodiment Figure 2 ;

[0034] Figure 9 A schematic diagram of a partial structure of a three-dimensional printing device provided in an embodiment of the present application;

[0035] Figure 10 A partial cross-sectional view of a three-dimensional printing device provided in an embodiment of the present application;

[0036] Figure 11 Provided in the embodiments of this application Figure 10 A magnified detail of part A.

[0037] Description of reference numerals:

[0038] 1. Carrier unit; 11. Photocatalyst filter element; 12. Activated carbon filter element; 13. HEPA filter element;

[0039] 2. Lighting unit;

[0040] 3. Airflow channel;

[0041] 4. Fan assembly;

[0042] 5. Module housing; 51. Air inlet; 52. Air outlet; 53. First connecting portion; 54. Avoidance portion; 55. Display screen; 56. Top cover; 57. Bottom cover;

[0043] 6. Printer housing; 61. Second connecting portion; 62. Box door. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0046] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0047] In order to solve the technical problems in the prior art that the air purification device has poor filtering effect and high frequency of filter element replacement, the present application provides an air purification module, a three-dimensional printing device and a three-dimensional printing system. By arranging a carrier unit 1 and an illumination unit 2 in the air purification module, the ultraviolet light emitted by the illumination unit 2 reacts with the titanium dioxide photocatalyst in the carrier unit 1, thereby achieving filtration and purification of volatile organic compounds; at the same time, since the photocatalyst in the carrier unit 1 will not be consumed, frequent replacement of the carrier unit 1 can be avoided, thereby improving the purification effect of the air purification module and reducing the replacement frequency of the carrier unit 1 and the photocatalyst.

[0048] See also Figures 1 to 11 In a first aspect, an embodiment of the present application provides an air purification module, comprising an air intake channel, a carrier unit 1, a lighting unit 2 and an exhaust channel, such as Figure 1 、 Figure 10 and Figure 11 shown.

[0049] Among them, the carrier unit 1 is loaded with a photocatalyst (such as titanium dioxide), and the illumination unit 2 is arranged corresponding to the carrier unit 1, and is used to emit light of a preset wavelength (such as ultraviolet light). When the light of the preset wavelength is irradiated on the photocatalyst loaded by the carrier unit 1, the photocatalyst can produce strong oxidizing substances (such as hydroxyl radicals, oxygen, etc.) under light irradiation, and can be used to decompose organic compounds (such as volatile organic compounds, VOCs), some inorganic compounds, bacteria and viruses, etc., and can filter and purify harmful substances such as volatile organic compounds in the air, thereby improving the purification effect of the air purification module. Since the photocatalyst acts as a catalyst in the reaction process, it will not be consumed itself and can be reused. Therefore, there is no need to frequently replace the carrier unit 1 and the photocatalyst, which reduces the user's operating difficulty and use cost during actual use.

[0050] The exhaust channel is connected to the air intake channel to form an air flow channel 3. The carrier unit 1 and the illumination unit 2 are both arranged in the air flow channel 3. The air flow channel 3 is used to communicate with the printing space where the three-dimensional printing device or the printed part is located, and can be used to purify the air inside the printing space to avoid affecting the health of the operator when the air quality inside the printing space is poor.

[0051] It should be noted that photocatalysts, also known as photocatalysts, are a general term for semiconductor materials with photocatalytic properties, represented by nano-scale titanium dioxide. Photocatalysts can include TiO2 (titanium dioxide), ZrO2 (zirconium dioxide), ZnO (zinc oxide), WO3 (tungsten trioxide), Fe2O3 (iron oxide), SnO2 (tin oxide), and SiO2 (silicon dioxide). The preset wavelength of light is between 10nm and 780nm, and can be ultraviolet light (i.e., UV light) or visible light.

[0052] In some preferred embodiments of the present application, the photocatalyst loaded in the carrier unit 1 is titanium dioxide, and the light of a preset wavelength emitted by the illumination unit 2 is UV light. The hydroxyl radicals and superoxide anions generated by the reaction of UV light with the titanium dioxide in the carrier unit 1 react with the VOCs molecules generated by the volatilization of printing consumables (such as photosensitive resins, etc.) to react chemically and convert them into harmless molecules such as water and carbon dioxide, thereby achieving higher purification efficiency and better air purification effect. At the same time, titanium dioxide not only has an antibacterial effect, but can also kill bacteria by destroying the cell membrane structure of bacteria, while degrading harmful toxins released by bacteria, thereby achieving a dual purification effect. Titanium dioxide will not be photocorroded under the conditions of ultraviolet light, and it has good acid and alkali resistance and stable chemical properties, so that it can maintain long-term catalytic activity during use.

[0053] In some embodiments of this application, please refer to Figure 1 and Figure 2The carrier unit 1 includes a photocatalyst filter element 11, on which the photocatalyst can be attached so as to contact and purify the airflow in the airflow channel 3. The photocatalyst filter element 11 is arranged corresponding to the illumination unit 2, as shown in FIG. Figure 1 and Figure 11 As shown, the light of a preset wavelength emitted by the illumination unit 2 can be irradiated on the photocatalyst filter element 11, so that the photocatalyst attached to the photocatalyst filter element 11 and the light of a preset wavelength (such as UV light) produce a photochemical reaction (see Li Yangyang et al. "Research Progress on Photocatalytic Removal of Organic Pollutants by Titanium Dioxide Photocatalysts." Progress in Physical Chemistry 11.3(2022):9.), thereby achieving purification of the airflow in the airflow channel 3.

[0054] In some embodiments of this application, please refer to Figure 1 and Figure 11 The illumination unit 2 and the carrier unit 1 are sequentially arranged in the air flow channel 3. Along the air flow direction in the air flow channel 3, the illumination unit 2 can be arranged at the front end or the rear end of the carrier unit 1. As long as the light of the preset wavelength emitted by the illumination unit 2 can be irradiated onto the photocatalyst filter element 11, the purpose of this application can be achieved.

[0055] In some preferred embodiments of the present application, the spacing between the illumination unit 2 and the photocatalyst filter element 11 is 3 mm to 20 mm, which allows light of a preset wavelength to be well irradiated on the photocatalyst filter element 11. It will be understood by those skilled in the art that if the spacing is too far, some of the energy radiated by the illumination unit 2 will be wasted, which is not conducive to full utilization of energy, while if the spacing is too close, the light emitted by the illumination unit 2 may not reach all positions of the photocatalyst filter element 11 (or the catalyst thereon) with the predetermined energy.

[0056] In some embodiments of this application, please refer to Figure 2 The carrier unit 1 also includes one or more of an activated carbon filter element 12, a HEPA filter element 13 (high-efficiency particulate air filter element), a particulate filter element, a fiber filter element, and an electrostatic filter element, which can be used in conjunction with the photocatalyst filter element 11 to simultaneously achieve the chemical filtration and physical filtration effects of the air purification module. During the use of the carrier unit 1, filter elements of different materials can be selectively combined and used according to different types of printing consumables to achieve targeted filtering effects. Printing consumables include but are not limited to photosensitive resins, ABS filaments, PLA filaments, nylon, light-curing inks, and other consumable materials used in 3D printing equipment.

[0057] During the use of the air purification module, large molecular dust pollutants can be filtered or adsorbed by traditional filter elements such as the activated carbon filter element 12, while the remaining small molecular VOCs can be decomposed by the photochemical reaction generated by the photocatalyst filter element 11, so that the air purification effect is optimized.

[0058] It should be noted that a plurality of filter elements can be arranged in sequence along the length direction or extension direction of the air flow channel 3, such as Figure 2 As shown; multiple filter elements can also be set in the form of circular filter cartridges (cylindrical or cylindrical), and the multiple filter elements can be arranged in sequence along the length direction of the air flow channel 3 or coaxially nested, which can achieve the purpose of this application.

[0059] In some embodiments of this application, please refer to Figure 1 and Figure 11 The air purification module also includes a fan assembly 4, which is arranged in the air flow channel 3 and can be used to drive the air flow to move unidirectionally in the air flow channel 3, thereby realizing the circulation of air between the air flow channel 3 and the printing space.

[0060] It should be noted that the fan assembly 4 may include one or more fans. Along the airflow direction in the airflow channel 3, the fan assembly 4 may be arranged at the front end of the carrier unit 1 or at the rear end of the carrier unit 1, both of which can achieve the purpose of this application.

[0061] In some preferred embodiments of the present application, the fan assembly 4 is arranged at the rear end of the carrier unit 1 (that is, the fan assembly 4 is preferably arranged in the exhaust channel), such as Figure 1 and Figure 11 As shown, the airflow is filtered by the carrier unit 1 and then flows through the fan assembly 4, which can reduce dust accumulation on the fan assembly 4 and is beneficial to improving the heat dissipation efficiency and service life of the fan assembly 4.

[0062] In some embodiments of the present application, when the fan assembly 4 is placed close to the air outlet 52, a dust screen is provided at the air outlet 52 to prevent dust from entering through the air outlet 52 and being adsorbed on the fan assembly 4 when the fan assembly 4 stops operating. The fan assembly 4 can be used to define an air inlet channel and an exhaust channel.

[0063] In some embodiments of the present application, in order to realize the start and stop control of the air purification module, the air purification module also includes a control unit, and the illumination unit 2 and the fan assembly 4 are both connected to the control unit signal. The start and stop control of the illumination unit 2 and the fan assembly 4 can be realized by the control unit, thereby realizing the start and stop control of the photochemical reaction and the airflow circulation.

[0064] In some embodiments of the present application, the control unit includes a processor, an operating element for human-computer interaction and a display screen 55, wherein the operating element can be a physical button or integrated with the display screen 55 to be set as a touch screen, thereby realizing human-computer interaction, allowing the operator to input control information to the control unit through the physical button or touch screen, and observe the air purification information through the display screen 55 or the touch screen.

[0065] See also Figures 1 to 11 In a second aspect of the embodiment of the present application, a three-dimensional printing device is provided, including the air purification module in the above embodiment; the air purification module further includes a module housing 5 for implementing a fixed setting of the air purification module in the three-dimensional printing device, such as Figure 3 、 Figure 4 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 shown.

[0066] The air intake channel, carrier unit 1, illumination unit 2 and exhaust channel are all arranged inside the module shell 5, and an air flow channel 3 can be formed inside the module shell 5, and the carrier unit 1 and illumination unit 2 are protected by the module shell 5.

[0067] An air inlet 51 and an air outlet 52 are provided on the module shell 5. The air inlet 51 is connected to the air inlet channel, and the air outlet 52 is connected to the exhaust channel, so that air can enter and exit the module shell 5 through the air inlet 51 and the air outlet 52, thereby realizing air circulation between the air flow channel 3 and the printing space.

[0068] In some embodiments of the present application, in order to facilitate maintenance and replacement of the carrier unit 1 , the module housing 5 and the carrier unit 1 are detachably connected.

[0069] In some embodiments of the present application, in order to facilitate maintenance and replacement of the illumination unit 2 and the fan assembly 4 , the illumination unit 2 and the fan assembly 4 are also detachably connected to the module housing 5 .

[0070] In some embodiments of the present application, the three-dimensional printing device also includes a printer housing 6. When the air purification module adopts an independently packaged module solution, the module housing 5 and the printer housing 6 are detachably connected, so that the air purification module and the printer body are split-type designs, and the air purification module can be removed from the printer as a whole.

[0071] In some embodiments of the present application, in order to achieve a detachable connection between the module housing 5 and the printer housing 6, a first connecting portion 53 is provided on the module housing 5, and a second connecting portion 61 is provided on the printer housing 6. The first connecting portion 53 and the second connecting portion 61 are matched and arranged. The detachable connection between the module housing 5 and the printer housing 6 can be achieved through the cooperation between the first connecting portion 53 and the second connecting portion 61, thereby achieving a detachable connection between the air purification module as a whole and the printer.

[0072] In some embodiments of this application, please refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The first connecting portion 53 and the second connecting portion 61 are connected by snapping, adsorption, adhesive or bolts. When the air purification module is in an independently packaged form, the connection between the air purification module and the printer can be achieved through a variety of connection forms.

[0073] In some embodiments of this application, please refer to Figure 3 and Figure 4 The second connection portion 61 is a bracket provided on the printer housing 6, and the bottom of the module housing 5 is configured as the first connection portion 53. When the bottom of the module housing 5 is embedded in the bracket, a snap-fit ​​connection is achieved between the first connection portion 53 and the second connection portion 61. In other embodiments, the bottom of the module housing 5 is placed on the bracket.

[0074] When the air inlet 51 and the air outlet 52 are provided at the upper and lower ends of the module housing 5, a hollow structure is provided at the bottom of the bracket, and the hollow structure is smaller than the bottom size of the module housing 5. This can prevent the bottom of the bracket from blocking the air inlet 51 or the air outlet 52, thereby preventing one end of the air flow channel 3 from being blocked by the bracket. Specifically, the bracket can be made of plastic or metal.

[0075] In some embodiments of this application, please refer to Figure 5 The first connecting portion 53 is a hook provided on the back of the module housing 5, and the second connecting portion 61 is a hanger or a hanging slot (not shown in the figure) provided on the printer housing 6. When the hook is hung on the hanger or the hanging slot, the first connecting portion 53 and the second connecting portion 61 can be snap-fitted.

[0076] In some embodiments of this application, please refer to Figure 6 The first connecting part 53 is a first magnetic part embedded in the back of the module housing 5, and the second connecting part 61 is a second magnetic part embedded in the printer housing 6 (not shown in the figure). The adsorption connection between the first connecting part 53 and the second connecting part 61 is achieved by the magnetic attraction between the first magnetic part and the second magnetic part.

[0077] In some embodiments of this application, please refer to Figure 7 The first connection portion 53 is a double-sided adhesive layer adhered to the back of the module housing 5, and the flat surface of the printer housing 6 (not shown in the figure) is configured as the second connection portion 61. When the double-sided adhesive layer is adhered to the flat surface of the printer housing 6 on the side facing away from the module housing 5, the adhesive connection between the first connection portion 53 and the second connection portion 61 can be achieved.

[0078] In some embodiments of this application, please refer to Figure 8The first connecting portion 53 is a connecting plate provided on the module housing 5, and a through hole is provided on the connecting plate. The second connecting portion 61 is a screw hole (not shown in the figure) provided on the printer housing 6. Bolts can be inserted into the through hole and the screw hole in sequence to realize the bolt connection between the first connecting portion 53 and the second connecting portion 61.

[0079] In some embodiments of the present application, when the air purification module is an independently packaged module, the module housing 5 includes a detachable top cover 56 and a bottom cover 57, so that the carrier unit 1, the illumination unit 2 and the fan assembly 4 can be maintained and replaced from both ends of the module housing 5. Figure 1 shown.

[0080] In other embodiments of the present application, the air purification module can be installed in a discrete unit and distributed manner, that is, the air purification module is integrated into the printer housing 6. Specifically, the three-dimensional printing device also includes a printer housing 6, and the printer housing 6 and the module housing 5 are an integrated structure, such as Figure 9 、 Figure 10 and Figure 11 As shown, at this time, the module housing 5 is embedded in the interior of the printer housing 6, and the printer housing 6 protects the entire air purification module. At the same time, the size of the air flow channel 3 and the carrier unit 1 can be made larger, and the purification efficiency can be enhanced.

[0081] In some embodiments of this application, please refer to Figure 9 、 Figure 10 and Figure 11 The air purification module is located in the bottom housing of the printer housing 6. The airflow channel 3 extends transversely along the printer housing 6. An air inlet 51 and an air outlet 52 are located on either side of the printer housing 6. This allows air in the airflow channel 3 to flow transversely through the printer housing 6, purifying the interior of the printer housing 6. The printer housing 6 is provided with an openable door 62, which facilitates access to the carrier unit 1, illumination unit 2, and fan unit within the airflow channel 3 for maintenance and replacement.

[0082] In some embodiments of this application, please refer to Figure 10 The air purification module is located within the printer housing 6. A clearance portion 54 is provided on the module housing 5 to provide clearance for other components within the printer housing 6 (such as a curing light source). Specifically, the clearance portion 54 protrudes toward the door 62 to provide clearance for the curing light source located at the bottom center of the printer housing 6.

[0083] In some embodiments of the present application, when the module housing 5 is integrated into the printer housing 6, the control unit of the air purification module is integrated into the main controller of the three-dimensional printing device, and the air purification module can be controlled through the touch screen or operation buttons of the three-dimensional printing device.

[0084] See also Figures 1 to 11 In a third aspect, an embodiment of the present application provides a three-dimensional printing system, comprising the three-dimensional printing device of the above-mentioned embodiment, and also comprising a printing space, wherein the three-dimensional printing device is arranged in the printing space, and the air flow channel 3 is connected to the printing space for purifying and circulating the air inside the printing space, thereby preventing the operator inside the printing space from inhaling harmful gases for a long time and affecting their health.

[0085] In some embodiments of the present application, the printing space is a building space such as a workshop or factory. When the printing space is poorly ventilated, an air purification module, either independently packaged or integrated into the printer housing 6, can purify the air within the printing space. This not only filters out large molecular dust impurities, but also chemically filters out harmful substances such as volatile organic compounds, significantly improving the air purification effect within the printing space. In this case, there is no need to place the 3D printing device near a window in the printing space, nor is there any need to exhaust harmful gases within the printing space through an exhaust pipe to the external environment, causing environmental pollution. This reduces the operating environment requirements for the operator and is more environmentally friendly.

[0086] See also Figures 1 to 11 In some embodiments of the present application, the method for using the above-mentioned 3D printing device is as follows:

[0087] Step 1: Turn on the 3D printing device and start the printer body and air purification module;

[0088] Step 2: When the air quality in the printing space is monitored to be poor, the fan assembly 4 and the illumination unit 2 are turned on. The UV light emitted by the illumination unit 2 is irradiated on the photocatalyst loaded on the carrier unit 1 (i.e., the photocatalyst filter element 11). Driven by the fan assembly 4, the air in the printing space enters the air flow channel 3 from the air inlet 51, and is filtered and purified by the carrier unit 1, and then discharged from the air purification module through the air outlet 52, thereby reducing the content of impurities and harmful gases in the printing space until the air quality in the printing space meets the standard.

[0089] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0090] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0091] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. An air purification module, characterized in that: include: Air intake duct; A carrier unit (1), wherein the carrier unit (1) is loaded with a titanium dioxide photocatalyst; an illumination unit (2), the illumination unit (2) being arranged corresponding to the carrier unit (1) and being used for emitting ultraviolet light; An exhaust channel is connected to the air inlet channel to form an air flow channel (3), the carrier unit (1) and the illumination unit (2) are both arranged in the air flow channel (3), and the air flow channel (3) is used to communicate with a printing space where a three-dimensional printing device is located.

2. The air purification module according to claim 1, characterized in that: The carrier unit (1) comprises a photocatalyst filter element (11), and the photocatalyst filter element (11) is arranged corresponding to the illumination unit (2).

3. The air purification module according to claim 2, characterized in that: The carrier unit (1) further comprises one or more of an activated carbon filter element (12), a HEPA filter element (13), a particulate filter element, a fiber filter element, and an electrostatic filter element.

4. The air purification module according to claim 1, characterized in that: It also includes a fan assembly (4), which is arranged in the air flow channel (3).

5. A three-dimensional printing device, characterized in that: The air purification module comprises the air purification module according to any one of claims 1 to 4; the air purification module further comprises a module housing (5), the air inlet channel, the carrier unit (1), the illumination unit (2) and the exhaust channel are all arranged inside the module housing (5); An air inlet (51) and an air outlet (52) are provided on the module housing (5); the air inlet (51) is communicated with the air inlet channel, and the air outlet (52) is communicated with the air exhaust channel.

6. The three-dimensional printing device according to claim 5, characterized in that: The module housing (5) and the carrier unit (1) are detachably connected.

7. The three-dimensional printing device according to claim 5, characterized in that: The three-dimensional printing device further comprises a printer housing (6), and the module housing (5) and the printer housing (6) are detachably connected.

8. The three-dimensional printing device according to claim 7, characterized in that: The module housing (5) is provided with a first connecting portion (53), and the printer housing (6) is provided with a second connecting portion (61). The first connecting portion (53) and the second connecting portion (61) are connected by snapping, adsorption, bonding or bolts.

9. The three-dimensional printing device according to claim 5 or 6, characterized in that: The three-dimensional printing device further comprises a printer housing (6), wherein the printer housing (6) and the module housing (5) are an integrated structure.

10. The three-dimensional printing device according to claim 9, characterized in that: The air purification module is arranged inside the printer housing (6), and a avoidance portion (54) is provided on the module housing (5).

11. A three-dimensional printing system, characterized in that: The three-dimensional printing device comprises the three-dimensional printing device according to any one of claims 5 to 10, further comprising a printing space, wherein the three-dimensional printing device is arranged in the printing space, and the air flow channel (3) is connected to the printing space.

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