Gas protection box and light curing device

Abstract

The utility model relates to a kind of gas protection box and photocuring device, belong to photocuring technical field.The box body of gas protection box is provided with accommodating cavity and the opening being able to be selectively closed with accommodating cavity communication.The sample is placed in the placement table in accommodating cavity by opening, and opening is closed.The switch valve is opened to fill protective gas to the flow channel being arranged in the circumferential direction around placement table, and the uniform flow of protective gas can be made into accommodating cavity by the multiple air holes being arranged in the circumferential direction at intervals, so that the air flow in accommodating cavity is more uniform, and the probability that sample is blown up by air flow can be reduced.After gas injection is completed, the switch valve is closed, and stop filling, the light-transmitting window of gas protection box is opposite to the light emitting surface of photocuring device, and the sample in gas protection box is photocured, and protective gas does not need to be continuously filled during photocuring process.

Description

Technical Field

[0001] This application relates to the field of photocuring technology, and more specifically, to a gas protection box and a photocuring device. Background Technology

[0002] Current photopolymerization equipment requires placing the sample directly into the sealed chamber and filling it with a protective gas such as nitrogen. However, when using existing equipment to photopolymerize thin films or other sheet-like samples, the sample is often blown away during the filling of the protective gas chamber, causing deformation and adhesion before curing, thus affecting the quality of the photopolymerization process. Furthermore, the continuous supply of protective gas throughout the entire photopolymerization process not only increases the likelihood of the sample being blown away but also leads to a waste of the protective gas. Utility Model Content

[0003] To address the aforementioned shortcomings, this application provides a gas protection box and a photocuring device to improve the problems of sheet samples being easily blown up and deformed or stuck together during photocuring.

[0004] This application is implemented as follows: In a first aspect, an example of this application provides a gas protection box, including a box body. The box body has a receiving cavity and an opening that can be selectively closed, communicating with the receiving cavity. A placement stage is provided at the bottom of the box body, and the placement stage is located within the receiving cavity. A flow channel is provided on the side of the box body, and the flow channel is arranged circumferentially around the placement stage, with a plurality of vent holes communicating with the receiving cavity in the extending direction of the flow channel. A switch valve extending outside the box body is provided at the end of the flow channel for filling the receiving cavity with protective gas. A light-transmitting window is provided at the top of the box body to allow light to pass through the light-transmitting window and illuminate the sample placed on the placement stage.

[0005] In the above-described process, before photocuring the sample using the photocuring device, the sample can be placed on the placement stage within the housing cavity, and then the opening is closed. Then, the valve is opened to fill the flow channel with protective gas. Since the flow channel is arranged circumferentially around the placement stage, and multiple vents are spaced along its extension direction, the protective gas, such as nitrogen, can be evenly delivered from the circumferential edge of the placement stage to the housing cavity. Air within the housing cavity can be evenly discharged along the circumference of the placement stage through the vents and out through the flow channel's outlet. Compared to existing photocuring equipment where the protective gas is directly injected into the housing cavity from a single inlet and air is directly discharged from a single outlet, this embodiment uses a flow channel arranged circumferentially around the placement stage, delivering protective gas from multiple vents. This results in a more uniform airflow within the housing cavity, reducing the likelihood of the sample being blown away. After reaching the target concentration, the valve can be closed to stop the injection of protective gas. The protective gas chamber, filled with protective gas, is then placed into the photocuring apparatus. Because the top of the chamber, corresponding to the placement stage, has a light-transmitting window, the light generated by the photocuring apparatus can shine through the window onto the sample for photocuring. During the photocuring process, there is no need to refill the chamber with protective gas, the sample will not be blown away again, and protective gas is conserved.

[0006] In conjunction with the first aspect, in one alternative implementation, the vent is located at a predetermined distance above the placement platform.

[0007] In the above implementation process, the vent of the flow channel is set at a preset distance above the placement stage. When the protective gas flows into the receiving cavity from the flow channel, it will flow over the sample placed on the placement stage. This not only reduces the probability of the airflow passing through the bottom of the sample and blowing it up, but the airflow flowing over the sample can also create a certain pressure on the sample, pressing the sample tightly on the placement stage, further reducing the probability of the sample being blown up. This can improve the photocuring quality during subsequent photocuring.

[0008] In conjunction with the first aspect, in one optional embodiment, the flow channel includes an air supply pipe disposed within the receiving cavity, the air supply pipe being arranged circumferentially along the placement platform, and a plurality of vent holes being arranged at intervals along the circumferential direction of the air supply pipe. A switching valve is provided at the end of the air supply pipe extending outside the housing.

[0009] In the above implementation process, the flow channel is formed by arranging the gas supply pipe in the containment cavity, which simplifies the arrangement of the flow channel. Furthermore, if the flow channel is damaged or if parameters such as the diameter or height of the vent need to be changed, a new flow channel can be replaced.

[0010] In conjunction with the first aspect, in one alternative embodiment, the placement platform is rectangular, and the gas supply pipe is arranged along the three sides of the platform's circumference. Both ends of the gas supply pipe extend beyond the housing and are connected to two corresponding switching valves.

[0011] In the above implementation process, the placement stage is set into a rectangle to accommodate rectangular sheet-like samples. Gas supply pipes with multiple vents are installed on the three sides of the rectangular placement stage, allowing for the uniform filling of protective gases such as nitrogen from the three sides. This also facilitates connecting the two ends of the gas supply pipes to a switch valve extending from one side of the placement stage outside the housing. The switch valve can be opened when needed to smoothly fill with nitrogen, and the switch valve is closed after the target nitrogen concentration is reached, ensuring the sample within the containment chamber is in a protective gas environment.

[0012] In conjunction with the first aspect, in one alternative embodiment, the box body includes a box body and a box lid, the box body having a receiving cavity and an opening communicating with the receiving cavity, and the box lid optionally closing the opening to seal the receiving cavity.

[0013] In the above process, the box body and the box lid form a box. Before photocuring the sample, the box lid can be opened to expose the opening, and the sample can be placed into the opening. Then the box lid is closed to seal the opening. Using the box lid to seal the opening is a simple operation.

[0014] In conjunction with the first aspect, in one alternative embodiment, a sealing ring is provided between the lid and the wall surface of the box body corresponding to the opening.

[0015] In the above implementation process, a sealing ring is provided between the box lid and the wall surface of the box body corresponding to the opening. When the box lid is closed, the gap between the box lid and the box body is filled by the sealing ring, which can improve the airtightness of the receiving cavity.

[0016] In conjunction with the first aspect, in one alternative implementation, the lid is hinged to the box body, and the lid can be selectively rotated to close the opening.

[0017] In the above implementation process, the lid is hinged to the body of the box, and the lid and the body of the box are connected as a rotatable whole, which makes it easy for the operator to flip the lid to close or open the receiving cavity, thus improving the convenience of operation.

[0018] In conjunction with the first aspect, in one optional embodiment, the box body is provided with at least one first connector, and the box lid is provided with at least one second connector, wherein the first connector and the second connector are connected when the box lid closes the opening.

[0019] In the above implementation process, after flipping the lid to close the opening of the box body, connecting the first connector and the second connector can further improve the sealing of the receiving cavity.

[0020] In conjunction with the first aspect, in one alternative implementation, the opening is opposite to the placement surface of the placement platform, and a light-transmitting window is provided on the lid.

[0021] In the above implementation process, the opening is positioned above the placement surface of the placement stage to facilitate sample placement. After the gas protection box is placed in the photocuring device, light shines through the light-transmitting window at the box cover onto the sample for photocuring.

[0022] In conjunction with the first aspect, in one alternative embodiment, a gas sensor is also provided within the containment cavity.

[0023] In the above implementation process, a gas sensor is installed in the containment cavity to detect the gas concentration in the containment cavity, so that the operator can monitor whether the protective gas concentration in the containment cavity has reached the target value. After the protective gas concentration in the containment cavity reaches the target value, the filling of protective gas is stopped.

[0024] In a second aspect, an example of this application provides a light curing apparatus, including a light curing unit and a gas protection box as provided in the first aspect. The light-emitting surface of the light curing unit faces the light-transmitting window.

[0025] In the above-described process, when using the aforementioned photocuring device to photocur thin sheet samples, the sample can be placed on the placement stage within the housing cavity, and the opening sealed. Then, the valve is opened to fill the flow channel with protective gas. Since the flow channel is arranged circumferentially around the placement stage, and multiple vents are spaced along its extension direction, the protective gas, such as nitrogen, can be evenly delivered from the circumferential edge of the placement stage to the housing cavity, reducing the chance of the sample being blown away. After reaching the target concentration, the valve can be closed to stop the filling of protective gas. Then, the gas protective box filled with protective gas is placed into the photocuring device. Because the top of the box, corresponding to the placement stage, has a light-transmitting window, when the light-emitting surface of the photocurer is opposite the light-transmitting window, light can pass through the window and irradiate the sample inside the gas protective box for photocuring. During the photocuring process of the photocuring device, there is no need to refill the chamber of the photocuring device with protective gas, the sample will not be blown away again, and protective gas is conserved. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0027] Figure 1 This is a schematic diagram of the structure of the gas protection box provided in the embodiments of this application; Figure 2 An explosion diagram of the gas protection box provided in an embodiment of this application.

[0028] Icons: 1-Gas protection box; 10-Box body; 11-Box body; 111-Receiving cavity; 112-Opening; 113-Placement platform; 12-Box cover; 13-Flow channel; 131-Ventilation hole; 132-Gas supply pipe; 14-Switch valve; 15-Light transmission window; 16-Sealing ring; 17-First connector; 18-Second connector; 19-Gas sensor; 20-Handle; 21-Base. Detailed Implementation

[0029] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0031] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0032] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0033] In the description of the embodiments of this application, the technical terms "middle", "upper", "lower", "front", "rear", "left", "right", "bottom", "inner" etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] Current photopolymerization equipment requires the sample to be placed directly into the sealed chamber of the equipment, and then an inert protective gas such as nitrogen is introduced into the chamber. Typically, the sealed chamber has an inlet and an outlet, both connected to the chamber. When introducing the protective gas, an external gas supply device is connected to the inlet, and nitrogen or other protective gases are introduced into the sealed chamber through the inlet. The introduced nitrogen or other protective gas forces the air out of the sealed chamber through the outlet. This process of continuously introducing nitrogen or other protective gases is repeated.

[0035] When using existing photopolymerization equipment to photopolymerize sheet materials such as films, after the sheet sample is placed in the sealed chamber of the equipment, the protective gas flow often causes the sheet sample to be blown up due to the airflow direction. This results in deformation and adhesion of the sample before it is cured, affecting the photopolymerization performance. Furthermore, current photopolymerization equipment requires a continuous supply of protective gas throughout the entire photopolymerization exposure process, which not only further increases the likelihood of the sample being blown up again but also leads to a waste of protective gas.

[0036] Based on this, this application provides a gas protection box 1, please refer to... Figure 1 The container includes a housing 10. The housing 10 has a receiving cavity 111 and an opening 112 that can be selectively closed and communicates with the receiving cavity. A placement stage 113 is located at the bottom of the housing 10 and is situated within the receiving cavity 111. A flow channel 13 is provided on the side of the housing 10 and is arranged circumferentially around the placement stage 113. Multiple vent holes 131 communicating with the receiving cavity 111 are provided along the extending direction of the flow channel 13. A switch valve 14 extending beyond the housing 10 is provided at the end of the flow channel 13 for filling the receiving cavity 111 with protective gas. A light-transmitting window 15 is provided at the top of the housing 10 to allow light to pass through and illuminate the sample placed on the placement stage 113.

[0037] Before photocuring the sample using the photocuring device, the sheet-like sample can be placed on the placement stage 113 inside the receiving cavity 111 of the housing 10, and then the opening 112 is closed. Then, the switch valve 14 is opened to fill the flow channel 13 with protective gas. Since the flow channel 13 is arranged around the circumference of the placement stage 113, and multiple vent holes 131 are spaced apart in the extending direction of the flow channel 13, the protective gas such as nitrogen in the flow channel 13 can be evenly delivered from the circumferential edge of the placement stage 113 to the receiving cavity 111, and the air in the receiving cavity 111 can flow into the flow channel 13 through the multiple vent holes 131 and exit from the outlet of the flow channel 13. Compared to existing photopolymerization equipment where protective gas is directly injected into the receiving cavity 111 through an inlet, and air and excess protective gas are directly discharged from the receiving cavity 111 through an outlet, this embodiment of the application sets up a flow channel 13 around the placement stage 113 to deliver protective gas from multiple vents 131. The gas flow direction within the receiving cavity 111 is more uniform, reducing the probability of the sample being blown away. After the target concentration is reached, the switch valve 14 can be closed to stop the injection of protective gas. Then, the gas protection box 1 filled with protective gas is placed into the photopolymerization device. Since the top of the box 10 corresponding to the placement stage 113 is provided with a light-transmitting window 15, the light generated by the photopolymerization device can shine through the light-transmitting window 15 onto the sample for photopolymerization. During the photopolymerization process of the photopolymerization device, there is no need to refill the sealed chamber of the photopolymerization device with protective gas, the sample will not be blown away again, and protective gas can be saved.

[0038] Furthermore, the sealed chamber of existing photocuring devices is usually large in volume and has low gas filling efficiency, while the gas protection box 1 provided in this application embodiment has a smaller accommodating cavity 111 and higher filling efficiency.

[0039] The gas protection box 1 provided in the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0040] In order to facilitate the closure of the opening 112 of the box body 10, in some embodiments, a sealing plug can be provided at the opening 112 of the box body 10, or the box body 10 can be configured as a push-pull closure structure similar to a drawer.

[0041] Alternatively, please continue reading Figure 1 The box body 10 includes a box body 11 and a box cover 12. The box body 11 is provided with a receiving cavity 111 and an opening 112 communicating with the receiving cavity 111. The box cover 12 can optionally close the opening 112 to seal the receiving cavity 111.

[0042] The box body 11 is provided with a receiving cavity 111, and a placement stage 113 is provided inside the receiving cavity 111 for placing sheet-like samples such as films. This application does not limit the specific structure of the placement stage 113. In some embodiments, the placement stage 113 can be the bottom wall of the receiving cavity 111. Alternatively, in some embodiments, a boss can be provided in the middle of the bottom wall of the receiving cavity 111 for placing samples.

[0043] Furthermore, the embodiments of this application do not limit the specific shape of the box body 11. In some embodiments, the outer shape of the box body 11 can be a cuboid structure, and the interior is provided with a cuboid-shaped receiving cavity 111. Alternatively, in some embodiments, the box body 11 can be a cylindrical structure or the like.

[0044] The box body 11 is also provided with an opening 112 communicating with the receiving cavity 111. This application does not limit the position of the opening 112. In some embodiments, the opening 112 may be located on a side wall around the circumference of the receiving cavity 111. When placing a sheet-like sample such as a film, the sample is pushed into the receiving cavity 111 through the opening 112. Similarly, when it is necessary to remove the sample from the receiving cavity 111, the sample can be pulled out through the opening 112.

[0045] Alternatively, for further convenience in handling and placing samples, please refer to some embodiments. Figure 1 The opening 112 can be located above the receiving cavity 111 and the placement platform 113, which are positioned opposite each other.

[0046] This application does not limit the specific size of the receiving cavity 111. The receiving cavity 111 can be miniaturized as much as possible while accommodating sheet-like samples such as films, which can further reduce the probability of the sample being blown up and deformed or stuck together, and can also improve the filling efficiency of the protective gas and reduce the amount of protective gas used.

[0047] A flow channel 13 is also provided at the box body 11. This application does not limit the specific arrangement of the flow channel 13. In some embodiments, a channel can be excavated in the circumferential box wall of the box body 11 corresponding to the receiving cavity 111, and multiple vent holes 131 are opened in the channel at intervals, so that the vent holes 131 communicate with the receiving cavity 111. Furthermore, the two ends of the channel extend outside the box body 11 to facilitate the installation of the corresponding switching valve 14. Excavating a channel in the box wall of the box body 11 can also reduce the weight of the box body 11, making the entire gas protection box 1 lighter.

[0048] As an example, when the box body 11 is a cuboid box-shaped structure formed by a bottom plate and four side plates arranged around the bottom plate, a channel can be horizontally hollowed out at the four side plates, and multiple vent holes 131 communicating with the receiving cavity 111 can be opened at intervals in the channel. Two through holes communicating with the outside can be opened at the outer wall of the side plate facing the channel, and a switch valve 14 can be sealed and connected at the through holes.

[0049] This application does not restrict the flow channel 13 to necessarily encircle the circumference of the placement platform 113. In some embodiments, the flow channel 13 is provided at least along two adjacent sides of the placement platform 113. As an example, a channel can be laterally cut out at three side plates, and the two ends of the channel can pass through a fourth side plate, where a switching valve 14 is provided.

[0050] In other embodiments, please continue to refer to Figure 1 and Figure 2 The flow channel 13 includes an air supply pipe 132 disposed within the receiving cavity 111. The air supply pipe 132 is arranged circumferentially along the placement platform 113, and a plurality of vent holes 131 are arranged at intervals along the circumferential direction of the placement platform 113. A switch valve 14 is provided at the end of the air supply pipe 132 that extends beyond the box body 11.

[0051] An air supply pipe 132 is placed inside the receiving cavity 111. No channel is cut into the wall of the box body 11. When the air supply pipe 132 needs to be replaced, it can be removed from the receiving cavity 111 for easy replacement. It is understood that the box body 11 has two through holes in its wall, and the two ends of the air supply pipe 132 can be sealed to the walls of these holes, facilitating the installation of a switch valve 14 connected to the air supply pipe 132 on the outside of the box body 11.

[0052] As an example, please continue reading Figure 1 or Figure 2 An air supply pipe 132 is arranged around the three sides of the rectangular placement platform 113 in the receiving cavity 111. The two ends of the air supply pipe 132 pass through the box wall corresponding to the fourth side. A switch valve 14 is provided on the part of the air supply pipe 132 that passes through the box wall.

[0053] The multiple vent holes 131 can be arranged at equal intervals or at non-equal intervals. This application does not limit the number of vent holes 131; in some embodiments, the number of vent holes 131 is not less than 3. As an example, the number of vent holes 131 can be 5 to 50.

[0054] This application does not limit the specific type of the switching valve 14. In some embodiments, the switching valve 14 is a one-way valve. One one-way valve is used to allow protective gas to flow into the flow channel 13, and another one-way valve is used to allow gas to flow out of the housing 10 from the flow channel 13.

[0055] To further reduce the likelihood of the sheet-like sample placed on the placement stage 113 being blown away during the filling of protective gas, in some embodiments, the vent 131 can be positioned at a predetermined distance above the placement stage 113. By positioning the vent 131 of the flow channel 13 at a predetermined distance above the placement stage 113, when the protective gas flows from the flow channel 13 into the receiving cavity 111, it will flow over the sample placed on the placement stage 113. This not only reduces the likelihood of the airflow passing through the bottom of the sample and blowing it away, but the airflow over the sample also creates a certain pressure on the sample, pressing it firmly against the placement stage 113, thereby further reducing the likelihood of the sample being blown away.

[0056] As an example, when the flow channel 13 is formed by the gas supply pipe 132 arranged in the receiving cavity 111, the vent 131 can be opened on the top side of the gas supply pipe 132 away from the placement stage 113. Alternatively, the gas supply pipe 132 can be fixed at a predetermined distance above the placement stage 113 on the side wall of the receiving cavity 111, so that the gas supply pipe 132 is higher than the placement stage 113 as a whole.

[0057] As an example, when the flow channel 13 is formed by a channel formed on the side wall of the box body 11, the position of the channel is higher than the bottom wall of the receiving cavity 111, so that the channel as a whole is higher than the placement platform 113. Alternatively, the position of the channel can be flush with or slightly lower than the placement platform 113, and the vent 131 at the channel is located at the top of the channel away from the placement platform 113, so that the vent 131 is higher than the placement platform 113.

[0058] Furthermore, to facilitate the placement of the box body 11, in some embodiments, please continue to refer to... Figure 1 and Figure 2 A base 21 can be installed at the bottom of the box body 11.

[0059] This application does not limit the specific shape of the lid 12, as long as the lid 12 can close or open the opening 112 as needed.

[0060] In some embodiments, the lid 12 may be a flat plate, the size of which is larger than the size of the opening 112. By setting the lid 12 as a flat plate and not providing a cavity inside the lid 12, the volume of the entire receiving cavity 111 inside the box body 10 can be reduced, thereby improving the filling efficiency of the protective gas and reducing the probability of the sample being blown up and deformed or stuck together.

[0061] As an example, when the box body 11 has a cuboid shape, the box cover 12 can be a rectangular plate structure. When the box cover 12 is placed over the opening 112 of the box body 11, the edge of the box cover 12 can be aligned with the edge of the box body 11.

[0062] To facilitate the operator in opening or closing the lid 12, in some embodiments, please refer to [the relevant documentation]. Figure 1 The lid 12 is hinged to the body 11, and the lid 12 can be rotated to close the opening 112. To close the lid 12, simply rotate it to cover the opening 112 of the body 11. Similarly, to open the lid 12, rotate it away from the opening 112. The hinged connection between the lid 12 and the body 11 improves the overall integrity of the gas protection box 1 and reduces the likelihood of the lid 12 falling and causing contamination.

[0063] This application does not limit how the lid 12 and the body 11 are hinged. In some embodiments, hinges can be provided at corresponding positions of the body 11 and the lid 12 to achieve the hinge connection between the lid 12 and the body 11.

[0064] To further facilitate the operator in flipping the lid 12, in some embodiments, please refer to [the relevant documentation]. Figure 1 and Figure 2 A handle 20 can also be provided on the side of the lid 12 away from the hinge position.

[0065] To further improve the sealing performance of the lid 12 after it is flipped over and placed behind the box body 11, in some embodiments, at least one first connector 17 can be provided at the box body 11 and at least one second connector 18 can be provided at the lid 12. When the lid 12 closes the opening 112, the first connector 17 and the second connector 18 are connected.

[0066] By utilizing the cooperation of the first connector 17 and the second connector 18, the lid 12 is tightly fixed to the opening 112 of the box body 11, which improves the sealing performance of the receiving cavity 111. This application does not limit the specific structure of the first connector 17 and the second connector 18. In some embodiments, a locking tooth can be provided on the side wall of the box body 11, and a buckle can be provided on the side wall of the lid 12. The buckle is rotatably connected to the side wall of the lid 12, and the buckle rotates around the lid 12 and locks into the locking tooth.

[0067] Alternatively, in some embodiments, the first connector 17 is a first magnetic component disposed at the lid 12, and the second connector 18 is a second magnetic component disposed at the body 11. When the lid 12 is placed on the body 11, the first magnetic component and the second magnetic component attract each other, thereby securing the lid 12 and the body 11.

[0068] To further improve the tightness of the connection between the lid 12 and the body 11, in some embodiments, a plurality of first connectors 17 can be arranged around the circumference of the body 11, and a plurality of second connectors 18 can be arranged around the circumference of the lid 12. Through the cooperation of multiple sets of first connectors 17 and second connectors 18, the lid 12 and the body 11 can be fastened.

[0069] To further improve the sealing performance of the receiving cavity 111, in some embodiments, a sealing ring 16 can be provided between the lid 12 and the wall surface of the box body 11 corresponding to the opening 112. The sealing ring 16 has a certain elastic deformation capacity. Under the compression action of the lid 12 and the box body 11, the sealing ring 16 can fill the gap between the lid 12 and the box body 11 to achieve a seal. This application does not limit the specific material of the sealing ring 16, and a conventional sealing ring 16 can be selected. As an example, the sealing ring 16 can be a rubber ring.

[0070] To facilitate monitoring of the gas filling status within the receiving cavity 111, a gas sensor 19 may be installed within the receiving cavity 111 in some embodiments. This application does not limit the specific type of gas sensor 19; it can be selected as needed. In some embodiments, an oxygen sensor may be installed within the receiving cavity 111.

[0071] Furthermore, the oxygen sensor can be positioned on the side of the cover 12 facing the receiving cavity 111.

[0072] To facilitate photocuring of the sample placed in the receiving cavity 111, the gas protection box 1 provided in this embodiment of the application is also provided with a light-transmitting window 15. The light-transmitting window 15 is located at a position opposite to the placement surface of the box body 10 and the placement surface of the placement stage 113. As an example, when the box cover 12 and the placement surface of the placement stage 113 are facing each other, the light-transmitting window 15 can be set on the box cover 12 corresponding to the position of the placement stage 113. Alternatively, the entire box cover 12 can be set as a light-transmitting structure.

[0073] As an example, when the wall of the box body 11 is opposite to the placement surface of the placement platform 113, the box wall at the position opposite to the placement surface can be set as a light-transmitting window 15 structure. Alternatively, the entire box body 11 can be set as a light-transmitting structure.

[0074] Furthermore, this application does not limit the specific material of the light-transmitting window 15. For example, the light-transmitting window 15 can be made of glass or acrylic.

[0075] In a second aspect, embodiments of this application also provide a photocuring apparatus (not shown in the figure), including a curing unit and a gas protection box 1 provided in embodiments of this application.

[0076] When using the photocuring apparatus provided in this application embodiment to photocur thin film or other sheet-like samples, the gas protection box 1 filled with protective gas is placed on the worktable, so that the light-transmitting window 15 is opposite to the light-emitting surface of the photocuring unit, and the photocuring unit is turned on to perform photocuring.

[0077] This application does not limit the specific type of UV curing device; conventional UV curing devices in the field can be selected.

[0078] The working process of the photocuring device provided in this application is as follows: Open the cover 12 of the gas protection box 1, place the sheet-like sample flat on the placement stage 113 inside the receiving cavity 111, and then close the opening 112. Next, open both valves 14 to fill with protective gas. After filling to the target concentration, close both valves 14 to stop filling with protective gas. Then place the gas protection box 1 filled with protective gas into the light curing device, so that the light-transmitting window 15 of the gas protection box 1 is facing the light-emitting surface of the light curing device. Then turn on the light curing device to perform light curing.

[0079] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gas protection box, characterized in that, Includes a box body, the box body being provided with a receiving cavity and an opening that can be selectively closed and communicating with the receiving cavity; The bottom of the box is provided with a placement platform, which is located inside the receiving cavity; the side of the box is provided with a flow channel, which is arranged around the circumference of the placement platform, and the extension direction of the flow channel is provided with a plurality of vent holes communicating with the receiving cavity; the end of the flow channel is provided with a switch valve extending out of the box for filling the receiving cavity with protective gas; the top of the box is provided with a light-transmitting window, so that light can pass through the light-transmitting window to illuminate the sample placed on the placement platform.

2. The gas protection box according to claim 1, characterized in that, The ventilation hole is located at a predetermined distance above the placement platform.

3. The gas protection box according to claim 1, characterized in that, The flow channel includes an air supply pipe disposed within the receiving cavity. The air supply pipe is arranged circumferentially along the placement platform, and a plurality of air vents are arranged at intervals along the circumferential direction of the placement platform. The end of the air supply pipe that extends outside the box is provided with the switch valve.

4. The gas protection box according to claim 3, characterized in that, The placement platform is rectangular, and the gas supply pipe is arranged along the three sides of the platform's circumference; both ends of the gas supply pipe extend out of the box and are connected to the two switching valves in a corresponding manner.

5. The gas protection box according to any one of claims 1 to 4, characterized in that, The box includes a box body and a box lid. The box body is provided with the receiving cavity and an opening communicating with the receiving cavity. The box lid can optionally close the opening to seal the receiving cavity.

6. The gas protection box according to claim 5, characterized in that, A sealing ring is provided between the lid and the wall surface of the box body corresponding to the opening.

7. The gas protection box according to claim 6, characterized in that, The lid is hinged to the box body, and the lid can be selectively rotated to close the opening.

8. The gas protection box according to claim 7, characterized in that, The box body is provided with at least one first connector, and the box lid is provided with at least one second connector. When the box lid closes the opening, the first connector and the second connector are connected.

9. The gas protection box according to claim 5, characterized in that, The opening is opposite to the placement surface of the placement platform, and the light-transmitting window is located on the box cover.

10. The gas protection box according to claim 1, characterized in that, A gas sensor is also installed inside the containment cavity.

11. A photocuring apparatus, characterized in that, It includes a light curing unit and a gas protection box as described in any one of claims 1 to 10; the light-emitting surface of the light curing unit is opposite to the light-transmitting window.

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