Flexible pressure sensor packaging process

Abstract

The invention belongs to the technical field of sensor packaging, and discloses a flexible pressure sensor packaging technology which comprises a base, supporting plates are fixedly connected to the two sides of the top of the base, a top plate is fixedly connected to the tops of the two supporting plates, and a lead screw motor is installed and fixedly connected to one side of the top plate. When the nut pair slides, the telescopic rod drives the connecting plate to move, the connecting plate drives the abutting rod to move, at the moment, the two ends of the abutting rod abut against the abutting blocks, and the abutting rod drives the sliding connecting plate to slide in the connecting plate through the abutting force of the abutting blocks; and meanwhile, a limiting plate is driven to slide in a limiting groove so that a second spring can be compressed, at the moment, a circular sealing plate can be disengaged from a sealing groove, then the coating in a second through pipe can be smeared to a flexible pressure sensor placed on an adhesive plate through a smearing brush head, and the coating can be evenly smeared to a substrate of the flexible pressure sensor.

Description

Technical Field

[0001] The invention belongs to the technical field of sensor packaging, and in particular relates to a flexible pressure sensor packaging process. Background Art

[0002] In modern society, the importance of sensors is self-evident. They are key components for converting the physical world into digital data, providing real-time environmental information for various applications. Flexible sensors are flexible and bendable sensors, usually made of flexible materials or substrates. Flexible pressure sensors include PDMS coatings, conductive carbon oil layers and substrate layers. A conductive carbon oil layer is formed on the substrate layer using a prefabricated mold using a screen printing process. The conductive carbon oil layer is connected to a conductive copper wire. After the conductive carbon oil layer is dried, a layer of PDMS is coated on the conductive carbon oil layer. After the PDMS coating is dried, the encapsulation is completed. The coating acts as a protective layer to protect the sensor from erosion by external environmental factors, such as damage caused by rain erosion, ultraviolet radiation, temperature changes, etc. This is crucial to improving the durability and reliability of the sensor.

[0003] In common small-scale production or prototype development, the coating is applied manually. During manual application, imprecise operation can easily lead to inconsistent coating thickness or partial areas not being coated properly, which will affect the quality of the coating and the performance of the sensor. Uneven coating can lead to differences in electrical properties, thereby affecting the stability of the electrical signal, which may cause inconsistent sensor response or failure. The adhesion of the coating to the substrate may be reduced due to uneven coating, causing the coating to easily peel or fall off, affecting the long-term stability and durability of the sensor. Uneven coating may require more repairs or re-coating, resulting in waste of paint, increased energy consumption, and thus increased production costs. Summary of the invention

[0004] In order to solve the problem mentioned in the above background technology that manual coating may easily lead to inconsistent coating thickness, or some areas may not be coated properly, affecting the quality of the coating and the performance of the sensor, and also causing differences in electrical properties, thereby affecting the stability of the electrical signal, and may cause inconsistent sensor response or failure. The adhesion between the coating and the substrate may be reduced due to uneven coating, causing the coating to easily peel off or fall off, affecting the long-term stability and durability of the sensor. Uneven coating may require more repairs or re-coating, resulting in waste of coating and increased energy consumption. The present invention provides a flexible pressure sensor packaging process.

[0005] To achieve the above object, the present invention provides the following technical solution: a flexible pressure sensor packaging process, comprising the following steps;

[0006] Step 1: The substrate of the flexible pressure sensor needs to be thoroughly cleaned and surface treated to ensure that the coating can adhere firmly to the sensor surface;

[0007] Step 2: Select a suitable coating material, such as PDMS-polydimethylsiloxane, UV curing resin protective coating, and evenly coat the coating material on the sensor surface by spraying, dipping, spin coating or screen printing;

[0008] Step 3: After the coating is completed, it needs to be cured by heat curing, UV light curing or natural drying;

[0009] Step 4: Stack the sensitive layer, protective layer and electrode layer of the flexible pressure sensor together, and seal the layers using heat sealing, adhesive or welding to ensure the overall sealing of the sensor.

[0010] A flexible pressure sensor packaging device, the coating device in step three includes a base, support plates are fixedly connected to the top sides of the base, the tops of the two support plates are fixedly connected to a top plate, a lead screw motor is installed and fixedly connected to one side of the top plate, and the lead screw passes through the top plate and is rotatably connected, a hose groove is passed through and opened in the middle of the top of the top plate, a lead screw slot is opened at the bottom of the top plate at the hose slot, a nut pair is slidably connected inside the slot, and the middle part of the nut pair is threadedly connected to the lead screw part of the lead screw motor, a through groove is opened in the inner cavity of the nut pair, and the screw The bottom of the female pair is penetrated and fixedly connected with a connecting sleeve, and the connecting sleeve cooperates with the through groove, the bottom of the inner cavity of the connecting sleeve is penetrated and slidably connected with a through pipe 1, the top of the outer wall of the through pipe 1 is fixedly connected with a limiting sealing plate, and the limiting sealing plate slides in the connecting sleeve, the through pipe 1 is fixedly connected with a connecting plate on the side away from the connecting sleeve, the through pipe 1 is fixedly connected with a uniformly distributed through pipe 2 on one side that penetrates the connecting plate, and the through pipe 2 penetrates the interior of the connecting plate, the through pipe 2 is fixedly connected with a uniformly distributed smear brush head on the side away from the through pipe 1, and the through pipe 1 penetrates the inner bottom of the connecting plate.

[0011] Preferably, the two support plates are rotatably connected to a rotating shaft, and a placement frame is fixedly connected to one opposite side of the two rotating shafts, and the outer wall of one side of the rotating shaft away from the placement frame passes through the support plate and is fixedly connected to a gear, and the upper and lower sides and left and right parts of the placement frame are fixedly connected to a resistance frame, and a compression groove is opened inside the resistance frame on one side, and a fixing rod is fixedly connected to the inner cavity of the compression groove, and a spring is sleeved on the outer wall of the fixing rod, and a resistance block is slidably connected to the outer wall of the fixing rod, and one side of the resistance block is fixedly connected to the spring, and an adhesive plate is installed in the middle of the placement frame.

[0012] Preferably, the inner wall of the connecting plate is provided with evenly distributed limit grooves, one side of the inner cavity of the limit groove is fixedly connected with spring 2, the inner part of the limit groove is slidably connected with the limit plate, and one side of the limit plate is fixedly connected with spring 2, one side of the connecting plate is slidably connected with a sliding connecting plate, and the bottom of the limit plate is fixedly connected with the sliding connecting plate, the side of the sliding connecting plate away from the connecting plate is fixedly connected with a resistance rod, and the resistance rod is in resistance with the resistance block, and the sliding connecting plate passes through one side of the connecting plate and is fixedly connected with an evenly distributed circular sealing plate.

[0013] Preferably, a sealing groove is penetrated and opened on one side of the outer wall of the plurality of through pipes 2, and the sealing groove cooperates with the circular sealing plate.

[0014] Preferably, rack rods are slidably connected to both sides of the inner side of the support plate at one side, and the rack rods are meshingly connected to the gears.

[0015] Preferably, one side of the nut pair is fixedly connected to a limiting slider, and the limiting slider is slidably connected to the inside of the support plate, a swing groove is opened on one side of the inner cavity of the support plate, and the rack rod penetrates the support plate and the top plate and slides in the swing groove, and a swing block is fixedly connected to the side of the outer wall of the nut pair away from the limiting slider, and the swing block slides in the swing groove and conflicts with the rack rod.

[0016] Preferably, both sides of the connecting plate are fixedly connected with L-shaped connecting rods, and the bottoms of the two L-shaped connecting rods are rotatably connected with rollers.

[0017] Preferably, guide blocks are fixedly connected to the upper and lower parts of both sides of the outer wall of the placement frame, and the guide blocks cooperate with the rollers.

[0018] Preferably, a paint storage box is fixedly connected to one side of the top of the support plate, a water pump is installed on one side of the paint storage box, a hose is installed on the side of the water pump away from the paint storage box, the side of the hose away from the water pump passes through the nut pair and cooperates with the through groove, and the hose slides in the hose groove, telescopic rods are fixedly connected to both sides of the bottom of the nut pair, and the end of the telescopic rod away from the nut pair is fixedly connected to the connecting plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can evenly apply paint on the base of the flexible pressure sensor by setting the cooperation of structures such as the screw motor and the connecting plate. The screw motor is started to rotate the screw and drive the nut pair to slide in the slide groove, and the hose slides in the hose groove. The sliding of the nut pair drives the connecting plate to move through the telescopic rod and the through pipe. When the connecting plate moves, it drives the resistance rod to move. At this time, the two ends of the resistance rod will resist the resistance block. The resistance force of the resistance block makes the resistance rod drive the sliding connecting plate to slide in the connecting plate. When the movement force is large, the limit plate is driven to slide in the limit groove to compress the spring 2. At this time, the circular sealing plate will be out of contact with the sealing groove, and then the paint in the through pipe 2 will be applied to the flexible pressure sensor placed on the adhesive plate through the coating brush head.

[0021] The present invention avoids coating accumulation caused by retention and inconsistent thickness by arranging the cooperation of structures such as the circular sealing plate and the sealing groove. When the flexible pressure sensor substrate placed on the adhesive plate is coated with the coating brush head, the nut pair will continue to slide. At this time, the L-shaped connecting rod and the roller will contact the guide block to make the connecting plate slide upward. At the same time, the through pipe 1 and the limiting sealing plate slide in the connecting sleeve. When the connecting plate slides upward, it will also drive the resistance rod to slide upward. At this time, the resistance rod will slide upward and will be separated from the resistance block. At this time, the resistance block will be reset by the elastic force of spring 1. When the resistance rod is separated from the resistance block, the limiting plate and the sliding connecting plate will be reset by the elastic force of spring 2. At the same time, the sliding connecting plate will drive the circular sealing plate to be inserted into the sealing groove to seal the through pipe 2.

[0022] The present invention can apply coating to the surfaces of two flexible pressure sensor substrates without stopping the machine by setting the coordination of structures such as gears and rack rods, thereby improving work efficiency. When the nut pair continues to slide, it will drive the swing block to contact the rack rod to make the rack rod slide downward. When the rack rod slides downward, it will mesh with the gear to make the gear rotate, so that the placement frame will flip over. When the placement frame is reversed, the L-shaped connecting rod will drive the connecting plate to rise through the contact between the guide block and the roller. At the same time, when the gear rotates, it will drive the rack rod on the other side to rise. When the placement frame is reversed, the screw motor will be turned on to drive the nut pair to reset. The above scheme can be repeated to apply coating to the flexible pressure sensor substrate adhered to the other side of the adhesive plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of a nut pair of the present invention;

[0025] Figure 3 It is a schematic diagram of the through slot of the present invention;

[0026] Figure 4 This is a schematic diagram of the second through-tube of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0028] Figure 6 It is a schematic diagram of the placement frame of the present invention;

[0029] Figure 7 It is a cross-sectional view of the conflict frame of the present invention;

[0030] Figure 8 It is a schematic diagram of the connecting plate of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle;

[0032] Fig.10 It is a schematic diagram of the swing slot of the present invention;

[0033] Fig.11 Schematic diagram of the rack rod of the present invention.

[0034] In the figure: 1, base; 2, support plate; 3, top plate; 4, screw motor; 5, hose groove; 6, slide groove; 7, nut pair; 8, through groove; 9, connecting sleeve; 10, limit sealing plate; 11, through pipe 1; 12, connecting plate; 13, through pipe 2; 14, smear brush head; 15, rotating shaft; 16, placement frame; 17, resistance frame; 18, compression groove; 19, fixing rod; 20, spring 1; 21, resistance block; 2 2. Adhesive plate; 23. Limiting groove; 24. Spring 2; 25. Limiting plate; 26. Sliding connecting plate; 27. Resistance rod; 28. Circular sealing plate; 29. ​​Sealing groove; 30. Gear; 31. Limiting slider; 32. Swing block; 33. Swinging groove; 34. Rack rod; 35. Paint storage box; 36. Water pump; 37. Hose; 38. Telescopic rod; 39. L-shaped connecting rod; 40. Roller; 41. Guide block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 11 As shown, a flexible pressure sensor packaging process includes the following steps;

[0037] Step 1: The substrate of the flexible pressure sensor needs to be thoroughly cleaned and surface treated to ensure that the coating can adhere firmly to the sensor surface;

[0038] Step 2: Select a suitable coating material, such as PDMS-polydimethylsiloxane, UV curing resin protective coating, and evenly coat the coating material on the sensor surface by spraying, dipping, spin coating or screen printing;

[0039] Step 3: After the coating is completed, it needs to be cured by heat curing, UV light curing or natural drying;

[0040] Step 4: Stack the sensitive layer, protective layer and electrode layer of the flexible pressure sensor together, and seal the layers using heat sealing, adhesive or welding to ensure the overall sealing of the sensor.

[0041] like Figures 1 to 11 As shown, the present invention also provides a flexible pressure sensor packaging device, wherein the coating device in the step three includes a base 1, support plates 2 are fixedly connected to the top sides of the base 1, a top plate 3 is fixedly connected to the tops of the two support plates 2, a lead screw motor 4 is installed and fixedly connected to one side of the top plate 3, and the lead screw passes through the top plate 3 and is rotatably connected, a hose groove 5 is penetrated and opened in the middle of the top of the top plate 3, a lead screw slide groove 6 is opened at the bottom of the top plate 3 located at the hose groove 5, a nut pair 7 is slidably connected inside the slide groove 6, and the middle part of the nut pair 7 is threadedly connected to the lead screw part of the lead screw motor 4, a through groove 8 is opened in the inner cavity of the nut pair 7, and the bottom of the nut pair 7 passes through A connecting sleeve 9 is fixedly connected thereto, and the connecting sleeve 9 cooperates with the through groove 8. A through pipe 11 is penetrated and slidably connected to the bottom of the inner cavity of the connecting sleeve 9. A limiting sealing plate 10 is fixedly connected to the top of the outer wall of the through pipe 11, and the limiting sealing plate 10 slides in the connecting sleeve 9. A connecting plate 12 is fixedly connected to the side of the through pipe 11 away from the connecting sleeve 9. A through pipe 2 13 is fixedly connected to the side of the through pipe 11 penetrating the connecting plate 12, and the through pipe 2 13 penetrates the interior of the connecting plate 12. A smear brush head 14 is fixedly connected to the side of the through pipe 2 13 away from the through pipe 11, and the through pipe 11 penetrates the inner bottom of the connecting plate 12;

[0042] The two support plates 2 are both rotatably connected with a rotating shaft 15, and a placement frame 16 is fixedly connected to the opposite side of the two rotating shafts 15. The outer wall of one rotating shaft 15, which is away from the placement frame 16, penetrates the support plate 2 and is fixedly connected with a gear 30. The upper and lower sides and left and right parts of the placement frame 16 are fixedly connected with a resistance frame 17. A compression groove 18 is opened inside the resistance frame 17 on one side, and a fixed rod 19 is fixedly connected to the inner cavity of the compression groove 18. The outer wall of the fixed rod 19 is sleeved with a spring 20. The outer wall of the fixed rod 19 is slidably connected with a resistance block 21, and one side of the resistance block 21 is fixedly connected to the spring 20. An adhesive plate 22 is installed in the middle of the placement frame 16.

[0043] The inner wall of the connecting plate 12 is provided with evenly distributed limit grooves 23, and a spring 24 is fixedly connected to one side of the inner cavity of the limit groove 23. The inner part of the limit groove 23 is slidably connected to a limit plate 25, and one side of the limit plate 25 is fixedly connected to the spring 24. A sliding connecting plate 26 is slidably connected to one side of the connecting plate 12, and the bottom of the limit plate 25 is fixedly connected to the sliding connecting plate 26. A resistance rod 27 is fixedly connected to the side of the sliding connecting plate 26 away from the connecting plate 12, and the resistance rod 27 resists the resistance block 21. The sliding connecting plate 26 passes through one side of the connecting plate 12 and is fixedly connected to an evenly distributed circular sealing plate 28.

[0044] The above scheme is adopted: firstly, the flexible pressure sensor substrate is placed on the adhesive plate 22 for adhesion, and the coating is transferred to the connecting sleeve 9, the through pipe 1 11 and the through pipe 2 13 through the through groove 8, and the screw motor 4 is started to rotate the screw and drive the nut pair 7 to slide in the slide groove 6, and the hose 37 slides in the hose groove 5;

[0045] When the nut pair 7 slides, the connecting plate 12 is driven to move by the telescopic rod 38 and the through pipe 11. When the connecting plate 12 moves, the resistance rod 27 is driven to move. At this time, the two ends of the resistance rod 27 will resist the resistance block 21. The resistance force of the resistance block 21 causes the resistance rod 27 to drive the sliding connecting plate 26 to slide in the connecting plate 12.

[0046] When the abutment rod 27 abuts against the abutment block 21, the abutment block 21 will slide on the outer wall of the fixing rod 19 to compress the spring 1 20. The elastic force of the spring 1 20 is relatively large, while the elastic force of the spring 2 24 is relatively small.

[0047] When the force of movement is large enough to drive the limit plate 25 to slide in the limit groove 23 and compress the spring 24, the circular sealing plate 28 will be out of contact with the sealing groove 29, and then the paint in the through pipe 2 13 will be applied to the flexible pressure sensor base placed on the adhesive plate 22 through the coating brush head 14 to complete the coating;

[0048] When the flexible pressure sensor substrate placed on the adhesive plate 22 is coated with the coating brush head 14 and the nut pair 7 continues to slide, the L-shaped connecting rod 39 and the roller 40 will contact the guide block 41 to make the connecting plate 12 slide upward, and at the same time, the through pipe 11 and the limiting sealing plate 10 slide in the connecting sleeve 9. When the connecting plate 12 slides upward, it will also drive the resistance rod 27 to slide upward. At this time, the resistance rod 27 will slide upward and will be separated from the resistance block 21. At this time, the resistance block 21 will be reset by the elastic force of the spring 1 20. When the resistance rod 27 is separated from the resistance block 21, the elastic force of the spring 2 24 will reset the limiting plate 25 and the sliding connecting plate 26. At the same time, the sliding connecting plate 26 will drive the circular sealing plate 28 to be inserted into the sealing groove 29 to seal the through pipe 2 13 to avoid coating accumulation caused by retention and inconsistent thickness.

[0049] like Figures 1 to 11 As shown, a sealing groove 29 is formed through one side of the outer wall of the plurality of through pipes 13, and the sealing groove 29 is matched with a circular sealing plate 28;

[0050] Rack rods 34 are slidably connected to both sides of the inner side of the support plate 2, and the rack rods 34 are meshed and connected with the gear 30;

[0051] One side of the nut pair 7 is fixedly connected to the limit slider 31, and the limit slider 31 is slidably connected to the inside of the support plate 2. A swing groove 33 is opened on one side of the inner cavity of the support plate 2, and the rack rod 34 penetrates the support plate 2 and the top plate 3 and slides in the swing groove 33. The outer wall of the nut pair 7 is fixedly connected to a swing block 32 on the side away from the limit slider 31, and the swing block 32 slides in the swing groove 33 and conflicts with the rack rod 34.

[0052] By adopting the above scheme: the nut pair 7 will continue to slide, which will drive the swing block 32 to contact the rack rod 34 and make the rack rod 34 slide downward. When the rack rod 34 slides downward, it will mesh with the gear 30 to rotate the gear 30, so that the placement frame 16 will be flipped. At the same time, when the gear 30 rotates, it will drive the rack rod 34 on the other side to rise.

[0053] like Figures 1 to 11 As shown, both sides of the connecting plate 12 are fixedly connected with L-shaped connecting rods 39, and the bottoms of the two L-shaped connecting rods 39 are rotatably connected with rollers 40;

[0054] The upper and lower parts of both sides of the outer wall of the placement frame 16 are fixedly connected with guide blocks 41 , and the guide blocks 41 cooperate with the rollers 40 .

[0055] With the above solution, when the placement frame 16 is reversed, the L-shaped connecting rod 39 drives the connecting plate 12 to rise through the interference between the guide block 41 and the roller 40, and at the same time, when the gear 30 rotates, it drives the rack rod 34 on the other side to rise.

[0056] like Figures 1 to 11 As shown, a paint storage box 35 is fixedly connected to one side of the top of the support plate 2, a water pump 36 is installed on one side of the paint storage box 35, a hose 37 is installed on the side of the water pump 36 away from the paint storage box 35, the side of the hose 37 away from the water pump 36 passes through the nut pair 7 and cooperates with the through groove 8, and the hose 37 slides in the hose groove 5.

[0057] Adopt the above scheme: start the water pump 36 to transfer the paint in the paint storage box 35 into the through groove 8 through the hose 37, and then transfer it to the connecting sleeve 9, through pipe 1 11 and through pipe 2 13 through the through groove 8;

[0058] At the same time, the hose 37 slides in the hose groove 5 , and telescopic rods 38 are fixedly connected to both sides of the bottom of the nut pair 7 , and one end of the telescopic rod 38 away from the nut pair 7 is fixedly connected to the connecting plate 12 .

[0059] The connecting plate 12 is supported by the telescopic rod 38, so that the connecting plate 12 is more stable when in use.

[0060] The working principle and use process of the present invention:

[0061] During operation, the flexible pressure sensor substrate is first placed on the adhesive plate 22 for adhesion, and then the water pump 36 is turned on to transfer the paint in the paint storage box 35 to the through groove 8 through the hose 37, and then transferred to the connecting sleeve 9, through the through groove 8, through the through groove 8, and then the screw motor 4 is started to rotate the screw and drive the nut pair 7 to slide in the slide groove 6, while the hose 37 slides in the hose groove 5. When the nut pair 7 slides, the connecting plate 12 is driven to move through the telescopic rod 38 and the through pipe 1 11. When the connecting plate 12 The movement will drive the resistance rod 27 to move. At this time, the two ends of the resistance rod 27 will resist the resistance block 21. The resistance force of the resistance block 21 will drive the sliding connecting plate 26 to slide in the connecting plate 12. When the movement force is large, the limit plate 25 will be driven to slide in the limit groove 23 to compress the spring 24. At this time, the circular sealing plate 28 will be out of contact with the sealing groove 29, and then the paint in the through pipe 13 will be applied to the flexible pressure sensor placed on the adhesive plate 22 through the smear brush head 14.

[0062] When the flexible pressure sensor substrate placed on the adhesive plate 22 is coated with the coating brush head 14 and the nut pair 7 continues to slide, the L-shaped connecting rod 39 and the roller 40 will contact the guide block 41 to make the connecting plate 12 slide upward, and at the same time, the through pipe 11 and the limiting sealing plate 10 slide in the connecting sleeve 9. When the connecting plate 12 slides upward, it will also drive the resistance rod 27 to slide upward. At this time, the resistance rod 27 slides upward and will be separated from the resistance block 21. At this time, the resistance block 21 will be reset by the elastic force of the spring 1 20. When the resistance rod 27 is separated from the resistance block 21, the elastic force of the spring 2 24 will reset the limiting plate 25 and the sliding connecting plate 26. At the same time, the sliding connecting plate 26 will drive the circular sealing plate 28 to be inserted into the sealing groove 29 to seal the through pipe 2 13 to avoid accumulation of coating caused by retention and inconsistent thickness.

[0063] As the nut pair 7 continues to slide, it will drive the swing block 32 to contact the rack rod 34, causing the rack rod 34 to slide downward. When the rack rod 34 slides downward, it will mesh with the gear 30 to rotate the gear 30, causing the placement frame 16 to flip over. When the placement frame 16 reverses, the L-shaped connecting rod 39 will drive the connecting plate 12 to rise through the contact between the guide block 41 and the roller 40. At the same time, when the gear 30 rotates, it will drive the rack rod 34 on the other side to rise. When the placement frame 16 reverses, the screw motor 4 will be turned on to drive the nut pair 7 to reset. The above scheme can be repeated to apply a coating to the flexible pressure sensor substrate adhered to the other side of the adhesive plate 22.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible pressure sensor packaging device, comprising a base (1), characterized in that: The top sides of the base (1) are fixedly connected to support plates (2), the tops of the two support plates (2) are fixedly connected to a top plate (3), one side of the top plate (3) is installed and fixedly connected to a lead screw motor (4), and the lead screw passes through the top plate (3) and is rotatably connected, a hose groove (5) is passed through and opened in the middle of the top of the top plate (3), a lead screw slide groove (6) is opened at the bottom of the hose groove (5) of the top plate (3), a nut pair (7) is slidably connected inside the slide groove (6), and the middle part of the nut pair (7) is threadedly connected to the lead screw part of the lead screw motor (4), a through groove (8) is opened in the inner cavity of the nut pair (7), a connecting sleeve (9) is passed through and fixedly connected at the bottom of the nut pair (7), and the connecting sleeve (9) ) cooperates with the through groove (8), the bottom of the inner cavity of the connecting sleeve (9) is penetrated by and slidably connected with a through pipe 1 (11), the top of the outer wall of the through pipe 1 (11) is fixedly connected with a limiting sealing plate (10), and the limiting sealing plate (10) slides in the connecting sleeve (9), the through pipe 1 (11) is fixedly connected with a connecting plate (12) on the side away from the connecting sleeve (9), the through pipe 1 (11) is penetrated by a side of the connecting plate (12) and is fixedly connected with evenly distributed through pipes 2 (13), and the through pipes 2 (13) penetrate the interior of the connecting plate (12), the through pipes 2 (13) are fixedly connected with evenly distributed smear brush heads (14) on the side away from the through pipe 1 (11), and the through pipe 1 (11) penetrates the inner bottom of the connecting plate (12); The two support plates (2) are rotatably connected to a rotating shaft (15), and opposite sides of the two rotating shafts (15) are fixedly connected to a placement frame (16), and a side of an outer wall of one rotating shaft (15) away from the placement frame (16) penetrates the support plate (2) and is fixedly connected to a gear (30); Rack rods (34) are slidably connected to both sides of the inner portion of the support plate (2) on one side; One side of the nut pair (7) is fixedly connected to a limit slider (31), and the limit slider (31) is slidably connected to the inside of the support plate (2); a swing groove (33) is provided on one side of the inner cavity of the support plate (2), and a rack rod (34) penetrates the support plate (2) and the top plate (3) and slides in the swing groove (33); a swing block (32) is fixedly connected to the side of the outer wall of the nut pair (7) away from the limit slider (31), and the swing block (32) slides in the swing groove (33) and contacts the rack rod (34).

2. The flexible pressure sensor packaging device according to claim 1, characterized in that: The upper and lower sides and the left and right parts of the placement frame (16) are fixedly connected to the resistance frame (17); a compression groove (18) is opened inside the resistance frame (17) on one side; a fixing rod (19) is fixedly connected to the inner cavity of the compression groove (18); a spring (20) is sleeved on the outer wall of the fixing rod (19); a resistance block (21) is slidably connected to the outer wall of the fixing rod (19); one side of the resistance block (21) is fixedly connected to the spring (20); and an adhesive plate (22) is installed in the middle of the placement frame (16).

3. The flexible pressure sensor packaging device according to claim 2, characterized in that: The inner wall of the connecting plate (12) is provided with uniformly distributed limiting grooves (23), one side of the inner cavity of the limiting groove (23) is fixedly connected to a second spring (24), the inner part of the limiting groove (23) is slidably connected to a limiting plate (25), and one side of the limiting plate (25) is fixedly connected to the second spring (24), one side of the connecting plate (12) is slidably connected to a sliding connecting plate (26), and the bottom of the limiting plate (25) is fixedly connected to the sliding connecting plate (26), the side of the sliding connecting plate (26) away from the connecting plate (12) is fixedly connected to a resistance rod (27), and the resistance rod (27) is in resistance to the resistance block (21), and one side of the sliding connecting plate (26) that passes through the connecting plate (12) is fixedly connected to uniformly distributed circular sealing plates (28).

4. The flexible pressure sensor packaging device according to claim 2, characterized in that: A sealing groove (29) is formed through one side of the outer wall of each of the plurality of through pipes 2 (13), and the sealing groove (29) is matched with a circular sealing plate (28).

5. The flexible pressure sensor packaging device according to claim 1, characterized in that: The rack rod (34) is meshingly connected to the gear (30).

6. The flexible pressure sensor packaging device according to claim 4, characterized in that: Both sides of the connecting plate (12) are fixedly connected with L-shaped connecting rods (39), and the bottoms of the two L-shaped connecting rods (39) are rotatably connected with rollers (40).

7. The flexible pressure sensor packaging device according to claim 6, characterized in that: The upper and lower parts of both sides of the outer wall of the placement frame (16) are fixedly connected with guide blocks (41), and the guide blocks (41) cooperate with the rollers (40).

8. The flexible pressure sensor packaging device according to claim 7, characterized in that: A paint storage box (35) is fixedly connected to one side of the top of the support plate (2), a water pump (36) is installed on one side of the paint storage box (35), a hose (37) is installed on the side of the water pump (36) away from the paint storage box (35), the side of the hose (37) away from the water pump (36) passes through the nut pair (7) and cooperates with the through groove (8), and the hose (37) slides in the hose groove (5), and telescopic rods (38) are fixedly connected to both sides of the bottom of the nut pair (7), and one end of the telescopic rod (38) away from the nut pair (7) is fixedly connected to the connecting plate (12).

9. A flexible pressure sensor packaging process, applied to the flexible pressure sensor packaging device according to claim 8, characterized in that: The following steps are involved: Step 1: The substrate of the flexible pressure sensor needs to be thoroughly cleaned and surface treated to ensure that the coating can adhere firmly to the sensor surface; Step 2: Select a suitable coating material, such as PDMS-polydimethylsiloxane, UV curable resin protective coating, and evenly coat the coating material on the sensor surface by spraying, dipping, spin coating or screen printing; Step 3: After the coating is completed, it needs to be cured by heat curing, UV light curing or natural drying; Step 4: Stack the sensitive layer, protective layer and electrode layer of the flexible pressure sensor together, and seal the layers using heat sealing, adhesive or welding methods to ensure the overall sealing of the sensor.

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