Inkjet printing apparatus

Abstract

The utility model provides an ink-jet printing device. The ink-jet printing equipment comprises a machine table box body, wherein the machine table box body is provided with an operation cavity; the first dehumidification temperature control assembly is arranged on the machine table box body, one part of the first dehumidification temperature control assembly is located in the operation cavity, and the first dehumidification temperature control assembly is used for introducing dehumidification temperature control gas into the operation cavity; the second dehumidification and temperature control assembly is arranged on the machine table box body, a part of the second dehumidification and temperature control assembly is located in the operation cavity, the second dehumidification and temperature control assembly is used for discharging gas in the operation cavity, and dehumidification and temperature control gas contains inert gas with the preset temperature and the preset humidity. According to the utility model, the problem of poor printing effect of ink-jet printing equipment in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to inkjet printing equipment technical field, specifically, relate to a kind of inkjet printing equipment. BACKGROUND

[0002] Perovskite inkjet printing technology is an advanced technology in recent years in the field of solar cells, light-emitting diodes (LED) and photodetectors, etc. It has attracted much attention because it can manufacture large-area, high-efficiency optoelectronic devices at low cost. In the deposition process of perovskite materials, in order to ensure the stability of the material and the performance of the device, it is usually necessary to carry out in an inert gas (such as nitrogen) environment to avoid the influence of active gases such as oxygen and water vapor on perovskite materials. Therefore, the internal of perovskite inkjet printing equipment is designed as a closed space with nitrogen atmosphere.

[0003] In the inkjet printing process, sensitive materials such as perovskite have strict requirements on the humidity and temperature of the environment in the operating cavity. High humidity can accelerate the hydrolysis of the material and affect the printing quality. The control of temperature affects the stability of the material, the reaction rate and the formation of the film. However, the existing inkjet printing equipment has poor control effect on temperature and humidity, resulting in poor inkjet printing effect.

[0004] That is, the existing inkjet printing equipment has the problem of poor printing effect. SUMMARY

[0005] The main purpose of the utility model is to provide an inkjet printing equipment to solve the problem of poor printing effect of the existing inkjet printing equipment.

[0006] In order to achieve the above purpose, according to one aspect of the utility model, an inkjet printing equipment is provided, which comprises: a machine table box body having an operating cavity; a first dehumidification and temperature control assembly arranged on the machine table box body, and a part of the first dehumidification and temperature control assembly being located in the operating cavity and being used for introducing dehumidification and temperature control gas into the operating cavity; and a second dehumidification and temperature control assembly arranged on the machine table box body, and a part of the second dehumidification and temperature control assembly being located in the operating cavity, the second dehumidification and temperature control assembly being used for discharging gas in the operating cavity, wherein the dehumidification and temperature control gas is an inert gas with a preset temperature and a preset humidity.

[0007] Further, the first dehumidification and temperature control assembly comprises a plurality of gas outlets arranged at intervals around the circumference of the machine table box body.

[0008] Further, the first dehumidification and temperature control assembly comprises:

[0009] a gas source located outside the operating cavity;

[0010] The gas supply pipeline has one part located inside the operating chamber and the other part located outside the operating chamber. The gas inlet of the gas supply pipeline is connected to the gas source, and the gas outlet of the gas supply pipeline is located inside the operating chamber.

[0011] The first control valve is installed on the gas supply pipeline and is used to control the gas flow rate in the gas supply pipeline.

[0012] Furthermore, the gas supply pipeline includes:

[0013] The main gas supply pipeline is connected to the machine housing, and a part of the main gas supply pipeline is located inside the operating chamber, while the other part of the main gas supply pipeline is located outside the operating chamber and connected to the gas source. The first control valve is installed on the section of the main gas supply pipeline located outside the operating chamber.

[0014] The gas supply branch pipe is located inside the operating chamber and is connected to the main gas supply pipe. The gas supply branch pipe has multiple gas outlets, which are spaced apart.

[0015] Furthermore, the gas supply branch pipes include:

[0016] At least one first bronchus extends in a first direction, and the main gas supply pipe is connected to at least one first bronchus.

[0017] Multiple second bronchi, the second bronchi extending along a second direction, and the multiple second bronchi arranged at intervals along a first direction, each second bronchi having at least one air outlet.

[0018] Furthermore, the gas supply branch pipe extends circumferentially along the operating chamber, and each of the two adjacent chamber walls of the operating chamber has at least one gas outlet.

[0019] Furthermore, the second dehumidification and temperature control component includes:

[0020] The negative pressure pump is located outside the operating chamber;

[0021] The exhaust assembly is embedded in the side wall of the machine housing and is connected to the operating chamber.

[0022] The exhaust pipe has an intake port connected to the exhaust assembly and an outlet port connected to the negative pressure pump.

[0023] The second control valve is located on the exhaust pipe and is used to control the exhaust flow rate of the exhaust assembly.

[0024] Furthermore, the exhaust assembly includes multiple exhaust fans embedded in the side wall of the machine housing, and the exhaust pipe includes:

[0025] The exhaust main pipe has an exhaust port, and a second control valve is installed on the exhaust main pipe.

[0026] Multiple exhaust branch pipes, each with an intake port, each intake port connected to the operating chamber, multiple intake ports corresponding to multiple exhaust fans, each exhaust fan located at the connection point between the corresponding intake port and the operating chamber;

[0027] The end of the manifold pipe and the exhaust branch pipe furthest from the intake port are connected to the manifold pipe, and the end of the exhaust main pipe furthest from the outlet port is connected to the manifold pipe.

[0028] Furthermore, the inkjet printing equipment also includes a glove operating station module, which is mounted on the machine housing, and at least a portion of the glove operating station module can enter or exit the operating cavity.

[0029] Furthermore, the inkjet printing equipment also includes an electronic dehumidifier, which is located inside the operating chamber.

[0030] According to the technical solution of this utility model, the inkjet printing equipment includes a machine base housing, a first dehumidification and temperature control component, and a second dehumidification and temperature control component. The machine base housing has an operating cavity. The first dehumidification and temperature control component is disposed on the machine base housing, and a portion of the first dehumidification and temperature control component is located inside the operating cavity, and is used to introduce dehumidification and temperature control gas into the operating cavity. The second dehumidification and temperature control component is disposed on the machine base housing, and a portion of the second dehumidification and temperature control component is located inside the operating cavity, and is used to discharge the gas in the operating cavity. The dehumidification and temperature control gas is an inert gas with a preset temperature and preset humidity.

[0031] The first dehumidification and temperature control component introduces inert gas with preset temperature and humidity into the operating chamber to dehumidify and control the environment within the chamber. This ensures that the temperature and humidity within the operating chamber remain stable within the set ideal range, thereby meeting the stringent environmental requirements of perovskite materials and improving the consistency and stability of printing results. The second dehumidification and temperature control component extracts some of the gas from the operating chamber, including volatile solvents and other contaminants. This not only maintains the dynamic balance of the gas within the operating chamber but also reduces the accumulation of harmful substances, protecting internal components from corrosion and extending the equipment's lifespan. Attached Figure Description

[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0033] Figure 1A schematic diagram of an inkjet printing device according to an optional embodiment of the present invention is shown.

[0034] The above figures include the following reference numerals:

[0035] 10. Machine housing; 11. Operating chamber; 20. First dehumidification and temperature control component; 21. Air outlet; 22. Air source; 23. Air supply pipe; 231. Main air supply pipe; 232. Branch air supply pipe; 233. First branch pipe; 234. Second branch pipe; 24. First control valve; 30. Second dehumidification and temperature control component; 31. Negative pressure pump; 32. Exhaust assembly; 321. Exhaust fan; 33. Exhaust pipe; 331. Main exhaust pipe; 332. Branch exhaust pipe; 333. Manifold pipe; 34. Second control valve; 40. Glove operating station module; 50. Electronic dehumidifier. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0038] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0039] During inkjet printing, perovskite solvents are corrosive, leaving residues inside the printer after printing. Prolonged exposure to this environment can corrode the internal metal structure, affecting the equipment's lifespan and operational safety. Furthermore, perovskite solvents are toxic; if the printer is not properly sealed, some harmful gases may diffuse outside, posing a threat to operator health, especially during extended periods of operation.

[0040] Furthermore, perovskite materials are very sensitive to environmental temperature and humidity. Conventional environmental control methods are insufficient to precisely control the temperature and humidity inside the machine to meet the acceptable range for perovskite materials. This may lead to instability in material properties, affecting printing results and product performance.

[0041] The core of these issues lies in how to ensure the internal environment of the printing press meets process requirements while protecting the safety of the equipment and operators, and how to effectively control and maintain the temperature, humidity, and cleanliness of the internal environment to achieve high-precision and high-stability perovskite inkjet printing. To address these issues, this invention provides an inkjet printing device that can precisely control the internal environment, improve process stability and consistency, thereby enhancing printing quality, while ensuring the safety of the equipment and operators.

[0042] like Figure 1 As shown, the inkjet printer includes a machine housing 10, a first dehumidification and temperature control component 20, and a second dehumidification and temperature control component 30. The machine housing 10 has an operating chamber 11. The first dehumidification and temperature control component 20 is disposed on the machine housing 10, and a portion of the first dehumidification and temperature control component 20 is located inside the operating chamber 11, and is used to introduce dehumidification and temperature control gas into the operating chamber 11. The second dehumidification and temperature control component 30 is disposed on the machine housing 10, and a portion of the second dehumidification and temperature control component 30 is located inside the operating chamber 11, and is used to discharge the gas inside the operating chamber 11. The dehumidification and temperature control gas is an inert gas with a preset temperature and preset humidity.

[0043] The first dehumidification and temperature control component 20 introduces an inert gas with a preset temperature and humidity into the operating chamber 11 to dehumidify and control the temperature of the environment inside the operating chamber 11. This ensures that the temperature and humidity inside the operating chamber 11 remain stable within the set ideal range, thereby meeting the stringent environmental requirements of perovskite materials and improving the consistency and stability of printing results. The second dehumidification and temperature control component 30 extracts some of the gas from the operating chamber 11. This extracted gas includes volatile solvents and other contaminants. This method not only maintains the dynamic balance of the gas inside the operating chamber 11 but also reduces the accumulation of harmful substances, protects internal components from corrosion, and extends the service life of the equipment.

[0044] Since the first dehumidification and temperature control component 20 is used to introduce gas into the operating chamber 11, and the second dehumidification and temperature control component 30 extracts the gas from the operating chamber 11, the coordinated work of the first dehumidification and temperature control component 20 and the second dehumidification and temperature control component 30 can dynamically control the airflow direction and flow rate in the operating chamber 11, avoiding airflow turbulence from affecting the stability of the process.

[0045] In addition, since the second dehumidification and temperature control component 30 is used to extract the gas in the operating chamber 11, it can reduce the harmful gas in the operating chamber 11, thereby reducing the risk of harmful gas spreading to the outside of the machine during long-term operation, and effectively reducing the harm of harmful gas to the operator.

[0046] The inkjet printer of this invention features negative pressure exhaust, ensuring that the pressure inside the operating chamber 11 is lower than the external ambient pressure. In the event of a leak, the airflow direction is from the outside to the inside of the operating chamber 11, reducing the risk of harmful gas leakage. The use of nitrogen dehumidification and negative pressure exhaust achieves dynamic control of the operating chamber 11, maintaining the internal temperature and humidity within a pre-defined atmospheric range. Simultaneously, nitrogen protection and negative pressure exhaust effectively prevent organic solvents from corroding the internal structure of the machine housing 10.

[0047] In some alternative embodiments, please refer to Figure 1 The first dehumidification and temperature control component 20 includes multiple air outlets 21, which are spaced apart circumferentially around the machine housing 10. By spaced out the multiple air outlets 21, the dehumidification and temperature control gas can enter the operating chamber 11 from multiple directions and points, effectively avoiding uneven airflow that may be caused by a single air outlet 21. This prevents poor temperature and humidity control in certain areas due to insufficient gas flow, ensuring that every corner of the operating chamber 11 is affected by the same gas environment, improving the uniformity and stability of the internal environment, and making the temperature and humidity differences within the operating chamber 11 smaller. This is conducive to the formation of a uniform coating, thereby improving the printing effect.

[0048] Furthermore, employing a multi-point air outlet method enhances gas flow and exchange efficiency, allowing for faster and more effective reduction of humidity within the operating chamber and control of temperature within the required range. This is particularly important for perovskite materials, which are sensitive to temperature and humidity, significantly improving print quality and process stability. Simultaneously, the uniform airflow distribution helps to quickly dilute and remove volatile solvents and other contaminants generated during inkjet printing from the operating chamber 11, reducing the risk of contamination to the equipment's interior and improving operational safety and equipment maintenance cycles.

[0049] In some alternative embodiments, please refer to Figure 1The first dehumidification and temperature control component 20 includes an air source 22, an air supply pipe 23, and a first control valve 24. The air source 22 is located outside the operating chamber 11; a portion of the air supply pipe 23 is located inside the operating chamber 11, and the other portion is located outside the operating chamber 11. The air inlet of the air supply pipe 23 is connected to the air source 22, and the air outlet 21 of the air supply pipe 23 is located inside the operating chamber 11. The first control valve 24 is installed on the air supply pipe 23 and is used to control the gas flow rate within the air supply pipe 23. Placing the air source 22 and the first control valve 24 outside the operating chamber 11 facilitates daily inspection and maintenance, eliminates the need for frequent opening of the operating chamber, reduces the interaction between the internal and external environments of the operating chamber 11, ensures the stability of the internal environment, and prevents potential contamination from the air source 22 itself from entering the operating chamber 11. Simultaneously, it protects the air source 22 from the effects of corrosive or toxic gases that may be generated within the operating chamber 11, ensuring the stability and reliability of the air source 22 and extending the service life of the equipment. The first control valve 24 is installed on the gas supply pipe 23 and can precisely control the gas flow rate entering the operating chamber 11. It can achieve fine-tuning of the humidity and temperature inside the operating chamber 11. Especially when processing materials that are very sensitive to environmental conditions, such as perovskite, fine-tuning of the flow rate can ensure that the environment inside the chamber is stable within the optimal process range, thereby improving printing quality and product consistency.

[0050] Optionally, the first control valve 24 is a solenoid valve.

[0051] In some alternative embodiments, please refer to Figure 1 The gas supply pipeline 23 includes a main gas supply pipeline 231 and branch gas supply pipelines 232. The main gas supply pipeline 231 is connected to the machine housing 10, with a portion of it located inside the operating chamber 11 and the other portion located outside the operating chamber 11 and connected to the gas source 22. A first control valve 24 is installed on the section of the main gas supply pipeline 231 located outside the operating chamber 11. The branch gas supply pipeline 232 is located inside the operating chamber 11 and is connected to the main gas supply pipeline 231. The branch gas supply pipeline 232 has multiple gas outlets 21, which are spaced apart. The first control valve 24, located on the section of the main gas supply pipeline 231 outside the operating chamber 11, can precisely control the total amount of gas entering the operating chamber 11, while the multiple gas outlets 21 on the branch gas supply pipeline 232 are responsible for evenly distributing the gas to various key areas within the operating chamber 11. Air is supplied to the operating chamber 11 through the main air supply pipe 231, and then evenly released through multiple air outlets 21 on the branch air supply pipes 232, forming a uniform process environment, reducing airflow dead zones, and enhancing the stability and uniformity of the environment. This is especially important for perovskite inkjet printing, because the material's sensitivity to environmental temperature and humidity requires a highly stable and uniform internal environment to ensure consistent print quality.

[0052] like Figure 1As shown, the gas supply branch pipe 232 includes at least one first branch pipe 233 and multiple second branch pipes 234. The first branch pipe 233 extends along a first direction, and the main gas supply pipe 231 is connected to at least one first branch pipe 233. The second branch pipes 234 extend along a second direction, and the multiple second branch pipes 234 are arranged at intervals along the first direction. Each second branch pipe 234 has at least one air outlet 21. The combination of the first branch pipe 233 and the multiple second branch pipes 234 forms a network-like gas distribution system. The first branch pipe 233 extends along the first direction and is responsible for the main gas delivery; while the second branch pipes 234 extend along the second direction and are arranged at intervals along the first direction, so that the gas can be evenly released from multiple points and directions to various parts of the operating chamber 11, avoiding the problems of uneven airflow and poor local environmental control that may be caused by a single gas outlet. The first bronchus 233 and the second bronchus 234 extend in an intersecting direction, resulting in a more even distribution of air outlets within the operating chamber 11. This reduces dead zones in airflow and enhances the stability and balance of the overall environment within the operating chamber 11. For processes with high environmental requirements, such as perovskite inkjet printing, this design effectively avoids the impact of local environmental fluctuations on the overall process.

[0053] Of course, control valves can be installed at each air outlet 21 according to specific usage requirements to control the air output of each air outlet 21. No specific restrictions are imposed here.

[0054] In some specific embodiments, please refer to Figure 1 The gas supply branch pipe 232 extends circumferentially along the operating chamber 11, and at least one air outlet 21 is located at each of the two adjacent chamber walls of the operating chamber 11. Providing air outlets 21 at the two adjacent chamber walls of the operating chamber 11 ensures that the dehumidifying and temperature-controlled gas is evenly distributed throughout the entire operating chamber 11, reducing airflow dead zones, ensuring uniform airflow during the printing process, reducing printing defects caused by uneven airflow, and improving environmental uniformity and stability. Furthermore, arranging the gas supply branch pipe 232 to extend circumferentially along and surround the operating chamber 11 reduces the occupied operating area within the operating chamber 11, improving space utilization, while not affecting the operator's work within the operating chamber 11.

[0055] In some alternative embodiments, please refer to Figure 1The second dehumidification and temperature control component 30 includes a negative pressure pump 31, an exhaust component 32, an exhaust pipe 33, and a second control valve 34. The negative pressure pump 31 is located outside the operating chamber 11. The exhaust component 32 is embedded in the side wall of the machine housing 10 and is connected to the operating chamber 11. The intake port of the exhaust pipe 33 is connected to the exhaust component 32, and the outlet port of the exhaust pipe 33 is connected to the negative pressure pump 31. The second control valve 34 is installed on the exhaust pipe 33 and is used to control the exhaust flow rate of the exhaust component 32. Through the cooperation of the negative pressure pump 31 and the exhaust component 32, excess gas in the operating chamber 11 can be effectively discharged, maintaining the stability of the chamber environment. Especially in scenarios where a large amount of volatile substances are generated during the printing process, harmful gases can be discharged in a timely manner, effectively reducing the concentration of harmful gases in the operating chamber 11, protecting the health of operators, and avoiding interference of volatile substances with the printing process, thus improving print quality.

[0056] Specifically, the exhaust assembly 32 is embedded in the side wall of the machine housing 10 and communicates with the operating chamber 11. It can directly draw gas from inside the operating chamber 11, which contains toxic gases. The exhaust pipe 33 directs the gas from the operating chamber 11 to the negative pressure pump 31 for treatment. Compared to a single dehumidifier, this design can more quickly and effectively reduce the humidity inside the operating chamber 11, providing a more ideal drying environment for inkjet printing of sensitive materials such as perovskite. The design of the exhaust pipe 33 ensures a clear and efficient gas flow path from the operating chamber 11 to the negative pressure pump 31. By controlling the second control valve 34, the gas flow rate and circulation speed can be adjusted to optimize the gas circulation inside the operating chamber 11, reduce dead air zones, and avoid excessive local humidity or temperature, thereby improving the consistency and stability of the process. The precise control capability of the second control valve 34 allows the exhaust flow rate of the exhaust assembly 32 to be adjusted according to the real-time temperature and humidity conditions inside the operating chamber 11, avoiding unnecessary over-exhaust and thus reducing energy consumption and operating costs. Furthermore, the efficient coordination between the exhaust assembly 32 and the negative pressure pump 31 reduces reliance on high-energy-consuming equipment, further saving energy. Key components such as the negative pressure pump 31 and the second control valve 34 are located outside the operating chamber 11, making maintenance and upgrades more convenient without frequent entry into the operating chamber 11, thus reducing interference with the internal environment. Simultaneously, this design facilitates rapid fault location and repair, improving equipment reliability and production efficiency.

[0057] Optionally, the second control valve 34 is a butterfly valve.

[0058] In some alternative embodiments, please refer to Figure 1The exhaust assembly 32 includes multiple exhaust fans 321, which are embedded in the side wall of the machine housing 10. The exhaust pipe 33 includes a main exhaust pipe 331, multiple branch exhaust pipes 332, and a manifold pipe 333. The main exhaust pipe 331 has an outlet port, and a second control valve 34 is installed on the main exhaust pipe 331. Each branch exhaust pipe 332 has an intake port, and each intake port is connected to the operating chamber 11. The multiple intake ports correspond one-to-one with the multiple exhaust fans 321, and each exhaust fan 321 is located at the connection point between its corresponding intake port and the operating chamber 11. The end of each branch exhaust pipe 332 away from its intake port is connected to the manifold pipe 333, and the end of the main exhaust pipe 331 away from its outlet port is connected to the manifold pipe 333. This design not only improves exhaust efficiency but also allows for flexible adjustment of the exhaust flow rate according to changes in humidity and temperature in different areas of the operating chamber 11, achieving more precise environmental control. This sophisticated environmental control capability enables precise control of the environment within the operating cavity 11, reducing printing defects caused by minute environmental changes.

[0059] In some alternative embodiments, please refer to Figure 1 The inkjet printing equipment also includes a glove operating station module 40, which is mounted on the machine housing 10, and at least a portion of the glove operating station module 40 can enter or exit the operating cavity 11.

[0060] The glove operating station module 40 allows operators to operate the equipment while wearing silicone gloves or similar gloves, without direct contact with the internal environment of the operating chamber 11. This design reduces the risk of operator exposure to environments that may contain volatile solvents, toxic or corrosive substances, protecting the operator's health and safety. Improved operational safety is particularly important for inkjet printing equipment handling sensitive materials such as perovskites. The design of at least a portion of the glove operating station module 40 being able to enter or exit the operating chamber 11 reduces the need for frequent opening of the operating chamber 11, thereby enhancing the sealing of the operating chamber 11, preventing the influence of the external environment, and ensuring the stability of the operating chamber 11 environment. The glove operating station module 40 exits the operating chamber 11 when not in use and enters when in use, effectively preventing the entry of external air or contaminants, maintaining the environmental stability and purity within the operating chamber 11. The addition of the glove operating station module 40 allows operators to load and unload materials without disrupting the internal environment of the operating chamber, improving the ease of use and production efficiency of the equipment, and is particularly suitable for production lines that require frequent changes of printing materials. The design of the glove operating station module 40 not only improves the safety and convenience of operation, but also significantly reduces production downtime. Operators can quickly change printing materials or make fine adjustments through the glove operating station module 40 without opening the operating chamber 11, avoiding the impact of environmental changes on the printing process and effectively improving production efficiency and flexibility.

[0061] Furthermore, since the glove operating station module 40 is integrated into the machine housing 10, it does not carry away any gas from the operating chamber 11 during its movement in and out, preventing operators from being exposed to toxic environments. This eliminates the need for operators to wear cumbersome protective gear, improving operational convenience, saving preparation time, and thus increasing the efficiency of the entire printing process. In addition, the design of the glove operating station module 40 increases the flexibility of the equipment, allowing operators to control the operation process more flexibly and accurately, further improving work efficiency. For example, different tools can be easily added or replaced on the glove operating station module 40 to adapt to different operational needs or process changes.

[0062] In some alternative embodiments, please refer to Figure 1 The inkjet printer also includes an electronic dehumidifier 50, which is installed on the top surface of the operating chamber 11. By incorporating the electronic dehumidifier 50 into the inkjet printer, the humidity inside the operating chamber 11 can be further reduced. Furthermore, when used in conjunction with the first dehumidification and temperature control component 20 and the second dehumidification and temperature control component 30, the humidity inside the operating chamber 11 can be rapidly reduced. Additionally, even if the first dehumidification and temperature control component 20 fails, the electronic dehumidifier 50 can still maintain the environment inside the operating chamber 11.

[0063] In some optional embodiments, the inkjet printing device also includes a host computer electrically connected to the first dehumidification and temperature control component 20 and the second dehumidification and temperature control component 30. The host computer can display the temperature and humidity inside the operating chamber 11, and controls the opening and closing of the first dehumidification and temperature control component 20 and the second dehumidification and temperature control component 30 based on the temperature and humidity inside the operating chamber 11. Furthermore, the humidity can be set at the host computer; for example, the humidity can be set to 15%. If the actual humidity value is lower than 15%, the butterfly valve angle increases; if the actual humidity value is higher than 15%, the butterfly valve angle decreases (or even closes), the solenoid valve opens, and clean industrial-grade 5N nitrogen gas is introduced, thereby achieving dynamic balance control. The second control valve 34 is a butterfly valve, and the first control valve 24 is a solenoid valve.

[0064] Of course, when the inkjet printing equipment also includes an electronic dehumidifier 50, the host computer is electrically connected to the electronic dehumidifier 50, and the host computer controls the opening and closing of the second dehumidification and temperature control component 30 according to the humidity in the operating chamber 11.

[0065] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0066] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0067] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0068] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An inkjet printing device, characterized in that, include: The machine tool housing (10) has an operating cavity (11); The first dehumidification and temperature control component (20) is disposed on the machine box (10), and a part of the first dehumidification and temperature control component (20) is located in the operating chamber (11) and is used to introduce dehumidification and temperature control gas into the operating chamber (11). The second dehumidification and temperature control component (30) is disposed on the machine housing (10), and a part of the second dehumidification and temperature control component (30) is located in the operating chamber (11). The second dehumidification and temperature control component (30) is used to discharge the gas in the operating chamber (11), wherein the dehumidification and temperature control gas is an inert gas with a preset temperature and preset humidity.

2. The inkjet printing device according to claim 1, characterized in that, The first dehumidification and temperature control component (20) includes multiple air outlets (21), which are arranged circumferentially around the machine housing (10).

3. The inkjet printing device according to claim 1, characterized in that, The first dehumidification and temperature control component (20) includes: An air source (22) is located outside the operating chamber (11); A gas supply pipe (23) is provided, a part of which is located inside the operating chamber (11) and the other part of which is located outside the operating chamber (11). The inlet end of the gas supply pipe (23) is connected to the gas source (22), and the outlet (21) of the gas supply pipe (23) is located inside the operating chamber (11). A first control valve (24) is installed on the gas supply pipe (23) to control the gas flow rate in the gas supply pipe (23).

4. The inkjet printing device according to claim 3, characterized in that, The gas supply pipeline (23) includes: A main gas supply pipeline (231) is connected to the machine box (10), and a part of the main gas supply pipeline (231) is located inside the operating chamber (11), while the other part of the main gas supply pipeline (231) is located outside the operating chamber (11) and connected to the gas source (22). The first control valve (24) is installed on the section of the main gas supply pipeline (231) located outside the operating chamber (11). A gas supply branch pipe (232) is located inside the operating chamber (11) and is connected to the main gas supply pipe (231). The gas supply branch pipe (232) has multiple gas outlets (21) spaced apart.

5. The inkjet printing device according to claim 4, characterized in that, The gas supply branch pipe (232) includes: At least one first bronchus (233) extends in a first direction, and the main gas supply pipe (231) is connected to at least one first bronchus; A plurality of second bronchioles (234) extending along a second direction, and the plurality of second bronchioles (234) being spaced apart along a first direction, each second bronchiole (234) having at least one of the said air outlets (21).

6. The inkjet printing device according to claim 4, characterized in that, The gas supply branch pipe (232) extends circumferentially along the operating chamber (11), and the operating chamber (11) has at least one gas outlet (21) at two adjacent chamber walls.

7. The inkjet printing apparatus according to any one of claims 1 to 6, characterized in that, The second dehumidification and temperature control component (30) includes: A negative pressure pump (31) is located outside the operating chamber (11); An exhaust assembly (32) is embedded in the side wall of the machine housing (10) and is connected to the operating chamber (11); An exhaust pipe (33) is provided, with its intake port connected to the exhaust assembly (32) and its outlet port connected to the negative pressure pump (31). The second control valve (34) is disposed on the exhaust pipe (33) and is used to control the exhaust flow rate of the exhaust assembly (32).

8. The inkjet printing apparatus according to claim 7, characterized in that, The exhaust assembly (32) includes a plurality of exhaust fans (321), which are embedded in the side wall of the machine housing (10). The exhaust pipe (33) includes: An exhaust main pipe (331) having the exhaust port, and a second control valve (34) disposed on the exhaust main pipe (331); Multiple exhaust branch pipes (332), each of the exhaust branch pipes (332) has an air intake port, each of the air intake ports is connected to the operating chamber (11), the multiple air intake ports correspond one-to-one with the multiple exhaust fans (321), and each exhaust fan (321) is located at the connection between the corresponding air intake port and the operating chamber (11); The manifold (333) and the exhaust branch pipe (332) are connected to the manifold (333) at the end away from the intake port, and the exhaust main pipe (331) is connected to the manifold (333) at the end away from the outlet port.

9. The inkjet printing apparatus according to any one of claims 1 to 6, characterized in that, The inkjet printing equipment also includes a glove operating station module (40), which is disposed on the machine housing (10), and at least a portion of the glove operating station module (40) can enter or exit the operating cavity (11).

10. The inkjet printing apparatus according to any one of claims 1 to 6, characterized in that, The inkjet printing equipment also includes an electronic dehumidifier (50), which is disposed inside the operating chamber (11).

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