Flexible pressure sensor encapsulation device and method thereof

Abstract

Provided are a flexible pressure sensor encapsulation device and a method thereof, the device includes a bearing base plate, support arms are fixed onto an upper surface of the bearing base plate close to middle portions of both ends; rotating shafts are inserted into portions close to middle positions of adjacent sides of, and loading plates are fixed at tops of, the two support arms; and a single storage mechanism is mounted on adjacent sides of the two rotating shafts, support columns are inserted into upper surfaces of two loading plates close to portions of two sides, an outer circumference of each of the support columns is in threaded connection with a limiting nut, a single limiting mechanism is installed at tops of the four support columns, and a heating plate is fixed onto a portion close to a middle position of the upper surface of the bearing base plate. 20 24 25 97 56 06 N ov 2 02 4 A B S T R A C T 2 0 2 4 2 5 9 7 5 6 0 6 N o v 2 0 2 4 A B S T R A C T 2 0 2 4 2 5 9 7 5 6 0 6 N o v 2 0 2 4 1 / 4 FIG. 1 FIG. 2 1 / 4 8 7 9 10 611 5 12 13 4 1 2 3 FIG. 1 18 17 16 15 H 8 14 19 20 A 2 1 3 FIG. 2 20 24 25 97 56 06 N ov 2 02 4 8 2 0 2 4 2 5 9 7 5 6 0 6 N o v 2 0 2 4 1 3 4 2 3 1 8 1 7 & 1 6 1 5 8 1 4 1 9 2 0 A 2 3 F I G . 2 8 2 0 2 4 2 5 9 7 5 6 0 6 N o v 2 0 2 4 1 3 4 2 3 1 8 1 7 & 1 6 1 5 8 1 4 1 9 2 0 A 2 3 F I G . 2

Description

TECHNICAL FIELD

[0001] The present invention relates to the technical field of sensor encapsulation, and in particular relates to a flexible pressure sensor packaging device and a method thereof. BACKGROUND ART

[0002] In modern society, the importance of sensors is self-evident, as they are key components capable of converting a physical world into digital data, providing real-time environmental information for various applications. A flexible pressure sensor is sensor that is flexible and bendable, and usually made of flexible material or substrate. The flexible pressure sensor includes PDMS coating, a conductive carbon oil layer, and a substrate layer. Through a prefabricated mold, the conductive carbon oil layer is formed on the substrate layer using the screen printing process, the conductive carbon oil layer is connected to a conductive copper wire; and after the conductive carbon oil layer is dried, and the PDMS layer is coated on the conductive carbon oil layer, the encapsulation will be completed after the PDMS layer is dried.

[0003] When the coating is applied to the substrate layer manually, it is easy to be coated in a skew manner, making a coating path deviate from the substrate layer, which will lead to uneven coating thickness or missing coating, thereby affecting the quality and performance of the coating and resulting in unstable electrical signal transmission. Furthermore, the coating path deviating from the substrate layer can also lead to uneven or reduced adhesion between the coating and the substrate layer, affecting the stability and durability of the coating, and even causing the coating to peel off or fall off. Moreover, the coating path deviating from the substrate layer will consume more coating materials and energy, thereby increasing the production costs. Therefore, a flexible pressure sensor encapsulation device and a method thereof are provided. SUMMARY OF THE INVENTION

[0004] In order to solve the problem that a coating path deviates from the substrate layer in flexible sensors, the present invention provides a flexible pressure sensor encapsulation device 2024259756   06 Nov 2024 and a method thereof.

[0005] In order to achieve the above objective, the present invention adopts the following technical solution: a flexible pressure sensor encapsulation device, including a bearing base plate, support arms are welded and fixed onto an upper surface of the bearing base plate close to middle portions of both ends, rotating shafts are inserted into portions close to middle positions of adjacent sides of the two support arms, and a single storage mechanism is mounted on adjacent sides of the two rotating shafts, where the storage mechanism comprises a fixed box; loading plates are fixed at tops of the two support arms by bolts, support columns are inserted into upper surfaces of two loading plates close to portions of two sides, an outer circumference of each of the support columns is in threaded connection with a limiting nut, a single limiting mechanism is installed at tops of the four support columns, the limiting mechanism comprises a lower movable plate, and a heating plate is fixed onto a portion close to a middle position of the upper surface of the bearing base plate.

[0006] The present invention is further set as: the limiting mechanism comprises the lower movable plate, top ends of the four support columns are welded with the single lower movable plate, spacer blocks are fixed onto an upper surface of the lower movable plate close to portions of four corners, a single upper movable plate is fixed to tops of the four spacer blocks by bolts, a penetrating movable rail hole is formed on an upper surface of the upper movable plate, a penetrating movable hole is formed on the upper surface of the lower movable plate, the penetrating movable hole corresponds to the penetrating movable rail hole, a coating mechanism is connected to an inner wall of the penetrating movable rail hole in a sliding manner, and the coating mechanism comprises a movable tube.

[0007] The present invention is further set as: the coating mechanism further comprises a movable snapping block, the movable snapping block is connected to a gap portion between the upper movable plate and the lower movable plate in a sliding manner, a penetrating insertion hole is formed at a top of the movable snapping block, the movable tube is inserted into a circumferential inner wall of the penetrating insertion hole, a second support disk is in threaded connection to a portion of a circumferential outer wall of the movable tube close to a top, a support spring is fixed onto a lower surface of the second support disk close to a portion of a circumferential edge, a sliding sheet is welded at a bottom end of the support spring, and a spraying brush head is inserted and fixed at a bottom end of the movable tube.

[0008] The present invention is further set as: limiting sliding holes are formed on the upper surface of the upper movable plate close to portions of both sides, first limiting rods are slidably connected to the gap between the upper movable plate and the lower movable plate close to portions of both ends, first sliding columns are welded onto upper surfaces of the two first 2024259756   06 Nov 2024 limiting rods close to both sides, the first sliding columns pass through the limiting sliding holes, the first sliding columns are matched with the limiting sliding holes, and first nuts are in threaded connection to portions on outer circumferential walls of the first sliding columns close to tops.

[0009] The present invention is further set as: sliding holes are formed on the upper surface of the upper movable plate close to portions of both ends, sliding holes corresponding to the second limiting sliding holes are formed on the upper surface of the lower movable plate close to portions of both ends, second limiting rods are slidably connected to the upper surface of the upper movable plate close to portions of both sides, second sliding columns are welded onto lower surfaces of the second limiting rods close to portions of both ends, the second sliding columns pass through the second limiting sliding holes and the lower movable plate, the second sliding columns are matched with the limiting sliding holes, and second nuts are in threaded connection to circumferential outer walls of the second sliding columns close to portions of end bottoms.

[0010] The present invention is further set as: a storage mechanism comprises the fixed box, the fixed box is clamped on adjacent sides of the two rotating shafts, a storage plate is welded onto portions close to middle positions of inner walls of two sides the fixed box, sliding rails are formed on the inner walls of the two sides the fixed box close to portions of both ends, the sliding rails at the both ends are connected with a single ventilation plate is a sliding manner.

[0011] The present invention is further set as: a second support block is welded onto a middle portion close to a top of an outer wall of one side of the ventilation plate, a first support block is fixed at a top of the second support block by a bolt, a connecting shaft is inserted at a top of one side of the first support block close to the fixed base, and a rotating snapping block is rotationally connected to one side of a circumferential outer wall of the connecting shaft away from the first support block.

[0012] The present invention is further set as: one sealing plate is welded at one side of inner walls at both ends of the fixed box close to a top end, another sealing plate is welded at the other side of inner walls at both ends of the fixed box close to a bottom end, a first scale is snap-fitted at a top end of each of the sealing plates, a second scale is snap-fitted on a portion close to one end of an upper surface and a lower surface of the fixed box, a first marking ruler is snap-fitted on a portion of the upper surface of the upper movable plate close to one side, the first marking ruler corresponds to the first scale, a second marking ruler is snap-fitted on a portion of the upper surface of the upper movable plate close to one end, and the second marking ruler corresponds to the second scale.

[0013] The present invention is further set as: symmetrical snapping slots with a same size are formed on circumferential outer walls of the rotating shafts close to one side, spring holes are 2024259756   06 Nov 2024 formed on portions close to four corners of an inner wall of adjacent sides of the two snapping slots, arc-shaped snapping blocks are inserted into inners walls of the snapping slots, connecting springs are fixed on portions of adjacent sides of two arc-shaped snapping blocks close to four corners, the connecting springs all pass through the spring holes, and semicircular grooves are formed on portions close to middle positions of adjacent sides of the two arc-shaped snapping blocks; an insertion rod is inserted into one side of each of the rotating shafts, a conical insertion head is welded on one side of the insertion rod close to the arc-shaped snapping block, a rectangular snapping slot is formed on one side of each of the support arms, the rectangular snapping slot is matched with the arc-shaped snapping block, a baffle plate is fixedly connected to a portion of a circumferential outer wall of the rotating shaft close to one end, a pair of second connecting blocks is welded onto each portion of one side of the baffle plate close to a top away from the arc-shaped snapping block, second fixed shafts are inserted into adjacent sides of the two pairs of second connecting blocks, handles are rotationally connected to portions of circumferential inner walls of the two second fixed shafts close to middle positions, a third fixed shaft is inserted into one end of each of the two handles away from the second fixed shaft, connecting arms are rotationally connected to portions of circumferential outer walls of the two third fixed shafts close to middle positions, a first fixed shaft is rotationally connected to one end of the each of the two connecting arms away from the third fixed shafts, first connecting blocks are sleeved and fixed to portions of circumferential outer walls of the two first fixed shafts away from two ends, a single first support disk is welded onto sides of the four first connecting blocks away from the baffle plate, the first support disk is connected with the insertion rod by a bolt, a retractable spring is fixed in a position of one side of the first support disk close to the baffle plate but away from a center of circle, and one end of the retractable spring away from the first support disk is connected to the rotating shafts.

[0014] A flexible pressure sensor encapsulation method, including the following steps:

[0015] S1. first, drawing out the ventilation plate close to a top end of the fixed box, then putting a substrate layer of the flexible pressure sensor that needs to be coated above the storage plate, and screwing the limiting nut to adjust the upper movable plate and the lower movable plate to appropriate heights;

[0016] S2. second, determining dimensions of the substrate layer by comparing with a length and a width of the substrate layer according to the first scale and the second scale, screwing the first nuts and the second nuts, and adjusting positions of the first limiting rods and the second limiting rods through the first marking ruler and the second marking ruler, such that an area surrounded by the first limiting rods and the second limiting rods corresponds to an area of the substrate layer that needs to be coated; 2024259756   06 Nov 2024

[0017] S3: adding painting to an inner cavity of movable tube, pressing the second support disk to bring the spraying brush head into close contact with the substrate layer, pushing the movable tube back and forth along the movable rail hole to complete the coating operation, then releasing the second support disk, and allowing the movable tube to be lifted under the action of the support spring, such that the spraying brush head is disengaged from the substrate layer;

[0018] S4. pushing the ventilation plate to enable the substrate layer to be completely covered by the ventilation plate, rotating the rotating snapping block to enable the rotating snapping block and the fixed base to form a snap-in connection relationship to prevent the ventilation plate from sliding abnormally; gripping the handles tightly to increase connection angles between the connecting arms and the handles, and distances between opposite ends of the connecting arms and the handles are accordingly increased, such that the first support disk is pushed to move away from the handle, the insertion rod is detached from the arc-shaped snapping blocks, the arc-shaped snapping blocks completely slide back to the snapping slots under the action of the connecting springs; and rotating the rotating shafts to flip the fixed box by 180 degrees, then releasing the handles, allowing the insertion rod to compress the arc-shaped snapping blocks under the action of the retractable spring, causing them to move towards both sides and to form a snap-in connection relationship with the rectangular snapping slot; and

[0019] S5. having the substrate layer at a bottom space of the fixed box heated by the heating plate to accelerate a drying speed of the coating, allowing the ventilation plate at a bottom of the fixed box to be rotated to the top end of the fixed box, drawing out the ventilation plate at the top end, and placing a new substrate layer that needs to be coated onto the storage plate, such that cyclic coating operations are completed.

[0020] Overall, the present invention has the following beneficial effect:

[0021] 1. By arranging the penetrating movable rail hole, coating operation can be performed step by step along the penetrating movable rail hole, such that uneven coating thickness or missed coating can be avoided, the accuracy and precision of the coating can be improved, and production efficiency is further improved; by arranging the first limiting rods and the second limiting rods, surrounding areas of the first limiting rods and the second limiting rods can be changed, thereby ensuring effective coating and avoid wasting materials.

[0022] 2. By arranging the movable snapping-in block, the movable tube can be prevented from tilting, the spraying brush head can be prevented from deviating from a coating path, and the stability of the device is improved; and by arranging the support spring, it is ensured that the spraying brush head is capable of being timely disengaged from the substrate layer when the coating operation is completed, avoiding inconsistent thickness of the coating arising from accumulation of the coating. 2024259756   06 Nov 2024

[0023] 3. By arranging the handles, the rotating shafts can be rotated to drive the fixed box to rotate, and coating and drying operations can be performed simultaneously, which greatly improves coating efficiency, reduces downtime during the coating process, and improving the operating speed and capacity utilization of the production line, such that production tasks can be completed faster to meet market demands. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is an overall schematic diagram of a flexible pressure sensor encapsulation device according to the present invention.

[0025] FIG. 2 is a schematic diagram of a side structure of a flexible pressure sensor encapsulation device according to the present invention.

[0026] FIG. 3 is a structural schematic diagram of a limiting mechanism in a flexible pressure sensor encapsulation device according to the present invention.

[0027] FIG. 4 is a schematic diagram of a top structure of an upper movable plate in a flexible pressure sensor encapsulation device according to the present invention.

[0028] FIG. 5 is an enlarged structural schematic diagram of portion A in FIG. 2 of a flexible pressure sensor encapsulation device according to the present invention.

[0029] FIG. 6 is a structural schematic diagram of an arc-shaped snapping block in a flexible pressure sensor encapsulation device according to the present invention.

[0030] FIG. 7 is a structural schematic diagram of a storage mechanism in a flexible pressure sensor encapsulation device according to the present invention.

[0031] FIG. 8 is a schematic diagram of a sectional structure of a storage mechanism in a flexible pressure sensor encapsulation device according to the present invention.

[0032] Reference numerals in the accompanying drawings: 1. heating plate; 2. support arms; 201. rectangular snapping slot; 3. bearing base plate; 4. fixed box; 401. sliding rail; 5. loading plate; 6. support column; 7. first limiting rod; 8. movable tube; 9. second limiting rod; 10. upper movable plate; 1001. movable rail hole; 1002. first limiting sliding hole; 1003. second limiting sliding hole; 1004. first marking ruler; 1005. second marking ruler; 11. lower movable plate; 12. ventilation plate; 13. first support disk; 14. baffle plate; 15. movable snapping block; 16. support spring; 17. second support disk; 18. sliding sheet; 19. rotating shaft; 1901. snapping slot; 1902. spring holes; 20. spraying brush head; 21. spacer block; 22. first nut; 23. first sliding column; 24. limiting nut; 25. second sliding column; 26. second nut; 27. handle; 28. retractable spring; 29. first fixed shaft; 30. second fixed shaft; 31. first connecting block; 32. insertion rod; 3201. 2024259756   06 Nov 2024 conical insertion head; 33. connecting arms; 34. third fixed shaft; 35. second connecting block; 36. arc-shaped snapping block; 3601. semicircular groove; 37. connecting spring; 38. storage plate; 39. rotating snapping block; 40. connecting shaft; 41. first support block; 42. second support block; 43. sealing plate; 44. first scale; 45. second scale. DETAILED DESCRIPTIONS OF THE EMBODIMENTS

[0033] The technical solutions of embodiments of the present invention will be described below clearly and comprehensively in conjunction with accompanying drawings of the embodiments of the present invention. Apparently, the embodiments described are merely some embodiments rather than all embodiments of the present invention.

[0034] Referring to FIGs. 1-8, this embodiment provides a flexible pressure sensor encapsulation device, including a bearing base plate 3, support arms 2 are welded and fixed onto an upper surface of the bearing base plate 3 close to middle portions of both ends, rotating shafts 19 are inserted into portions close to middle positions of adjacent sides of the two support arms 2, and a single storage mechanism is mounted on adjacent sides of the two rotating shafts 19, where the storage mechanism includes a fixed box 4; loading plates 5 are fixed at tops of the two support arms 2 by bolts, support columns 6 are inserted into upper surfaces of two loading plates 5 close to portions of two sides, an outer circumference of each of the support columns 6 is in threaded connection with a limiting nut 24, a single limiting mechanism is installed at tops of the four support columns 6, the limiting mechanism includes a lower movable plate 11, and a heating plate 1 is fixed onto a portion close to a middle position of the upper surface of the bearing base plate 3; and by arranging the limiting nut 24, a height of the device can be adjusted to ensure that a spray brush head 20 is capable of contacting a substrate layer of the sensor, and under a baking effect of the heating plate 1, a drying speed of the coating can be accelerated, a production cycle can be shortened, production efficiency can be improved, and contamination and interference from external environments can be reduced, thereby helping to maintain the quality and stability of the coating and reducing a defective rate.

[0035] Referring to FIGs. 3 and 4, the limiting mechanism includes the lower movable plate 11, top ends of the four support columns 6 are welded with the single lower movable plate 11, spacer blocks 21 are fixed onto an upper surface of the lower movable plate 11 close to portions of four corners , a single upper movable plate 10 is fixed to tops of the four spacer blocks 21 by bolts, a penetrating movable rail hole 1001 is formed on an upper surface of the upper movable plate 10, a penetrating movable hole is formed on the upper surface of the lower movable plate 11, the 2024259756   06 Nov 2024 penetrating movable hole corresponds to the penetrating movable rail hole 1001, a coating mechanism is connected to an inner wall of the penetrating movable rail hole 1001 in a sliding manner, and the coating mechanism includes a movable tube 8; and by arranging the penetrating movable rail hole 1001, coating operation can be performed step by step along the penetrating movable rail hole 1001, such that uneven coating thickness or missed coating can be avoided, the accuracy and precision of the coating can be improved, and production efficiency is further improved.

[0036] Referring to FIG. 2, the coating mechanism further includes a movable snapping block 15, the movable snapping block 15 is connected to a gap portion between the upper movable plate 10 and the lower movable plate 11 in a sliding manner, a penetrating insertion hole is formed at a top of the movable snapping block 15, the movable tube is inserted into a circumferential inner wall of the penetrating insertion hole 8, a second support disk 17 is in threaded connection to a portion of a circumferential outer wall of the movable tube 8 close to a top, a support spring 16 is fixed onto a lower surface of the second support disk 17 close to a portion of a circumferential edge, a sliding sheet 18 is welded at a bottom end of the support spring 16, and a spraying brush head 20 is inserted and fixed at a bottom end of the movable tube 8; by arranging the movable snapping block 15, the movable tube 8 can be prevented from tilting, the spraying brush head 20 can be prevented from deviating from a coating path, and the stability of the device is improved; and by arranging the support spring 16, it is ensured that the spraying brush head 20 is capable of being timely disengaged from the substrate layer when the coating operation is completed, avoiding inconsistent thickness of the coating arising from accumulation of the coating.

[0037] Reference to FIGs. 3 and 4, limiting sliding holes 1002 are formed on the upper surface of the upper movable plate 10 close to portions of both sides, first limiting rods 7 are slidably connected to the gap between the upper movable plate 10 and the lower movable plate 11 close to portions of both ends, first sliding columns 23 are welded onto upper surfaces of the two first limiting rods 7 close to both sides, the first sliding columns 23 pass through the limiting sliding holes 1002, the first sliding columns 23 are matched with the limiting sliding holes 1002, first nuts 22 are in threaded connection to portions on outer circumferential walls of the first sliding columns 23 close to tops, second limiting sliding holes 1003 are formed on the upper surface of the upper movable plate 10 close to portions of both ends, sliding holes corresponding to the second limiting sliding holes 1003 are formed on the upper surface of the lower movable plate 11 close to portions of both ends, second limiting rods 9 are slidably connected to the upper surface of the upper movable plate 10 close to portions of both sides, second sliding columns 25 are welded onto lower surfaces of the second limiting rods 9 close to portions of both ends, the 2024259756   06 Nov 2024 second sliding columns 25 pass through the second limiting sliding holes 1003 and the lower movable plate 11, the second sliding columns 25 are matched with the limiting sliding holes 1003, and second nuts 26 are in threaded connection to circumferential outer walls of the second sliding columns 25 close to portions of end bottoms; and by arranging the first limiting rods 7 and the second limiting rods 9, surrounding areas of the first limiting rods 7 and the second limiting rods 9 can be changed, and sliding areas of the movable tube 8 inside the movable rail hole 1001 can be accordingly changed, such that the device can adapt to substrate layers of more sensors, and is applicable to more scenarios.

[0038] Referring to FIGs. 7 and 8, the storage mechanism includes the fixed box 4, the fixed box 4 is clamped on adjacent sides of the two rotating shafts 19, a storage plate 38 is welded onto portions close to middle positions of inner walls of two sides the fixed box 4, sliding rails 401 are formed on the inner walls of the two sides the fixed box 4 close to portions of both ends, the sliding rails 401 at the both ends are connected with a single ventilation plate 12 is a sliding manner, a second support block 42 is welded onto a middle portion close to a top of an outer wall of one side of the ventilation plate 12, a first support block 41 is fixed at a top of the second support block 42 by a bolt, a connecting shaft 40 is inserted at a top of one side of the first support block 41 close to the fixed base 4, and a rotating snapping block 39 is rotationally connected to one side of a circumferential outer wall of the connecting shaft 40 away from the first support block 41; by arranging the rotating snapping block 39, the ventilation plate 12 can be fixed more stably on the sliding rails 401, such that the ventilation plate 12 is prevented from shifting with a central offset during the rotation of the fixed box 4, thereby further enhancing the operating safety of the device.

[0039] Referring to FIGs. 4 and 8, one sealing plate 43 is welded at one side of inner walls at both ends of the fixed box 4 close to a top end, another sealing plate 43 is welded at the other side of inner walls at both ends of the fixed box 4 close to a bottom end, a first scale 44 is snap-fitted at a top end of each of the sealing plates 43, a second scale 45 is snap-fitted on a portion close to one end of an upper surface and a lower surface of the fixed box 4, a first marking ruler 1004 is snap-fitted on a portion of the upper surface of the upper movable plate 10 close to one side, the first marking ruler 1004 corresponds to the first scale 44, a second marking ruler 1005 is snap-fitted on a portion of the upper surface of the upper movable plate 10 close to one end, and the second marking ruler 1005 corresponds to the second scale 45; and by arranging the first scale 44 and the second scale 45, a size of the substrate layer of the sensor can be measured and identified, and dimensions of an area to be coated can be determined; and a coating trajectory can then be determined based on the first marking ruler 1004 and the second marking ruler 1005, thereby avoiding the coating of useless areas, reducing painting 2024259756   06 Nov 2024 consumption, and cutting down production costs.

[0040] Referring to FIGs. 5 and 6, symmetrical snapping slots 1901 with a same size are formed on circumferential outer walls of the rotating shafts 19 close to one side, spring holes 1902 are formed on portions close to four corners of an inner wall of adjacent sides of the two snapping slots 1901, arc-shaped snapping blocks 36 are inserted into inners walls of the snapping slots 1901, connecting springs 37 are fixed on portions of adjacent sides of two arc-shaped snapping blocks 36 close to four corners, the connecting springs 37 all pass through the spring holes 1902, and semicircular grooves 3601 are formed on portions close to middle positions of adjacent sides of the two arc-shaped snapping blocks 36; sizes of the arc-shaped snapping blocks 36 are the same as those of the snapping slots 1901, and curvatures of outer walls of the arc-shaped snapping blocks 36 are the same as those of the rotating shafts 19; an insertion rod 32 is inserted into one side of each of the rotating shafts 19, a conical insertion head 3201 is welded on one side of the insertion rod 32 close to the arc-shaped snapping block 36, a rectangular snapping slot 201 is formed on one side of each of the support arms 2, the rectangular snapping slot 201 is matched with the arc-shaped snapping block 36, a baffle plate 14 is fixedly connected to a portion of a circumferential outer wall of the rotating shaft 19 close to one end, a pair of second connecting blocks 35 is welded onto each portion of one side of the baffle plate 14 close to a top away from the arc-shaped snapping block 36, second fixed shafts 30 are inserted into adjacent sides of the two pairs of second connecting blocks 35, handles 27 are rotationally connected to portions of circumferential inner walls of the two second fixed shafts 30 close to middle positions, a third fixed shaft 34 is inserted into one end of each of the two handles 27 away from the second fixed shaft 30, connecting arms 33 are rotationally connected to portions of circumferential outer walls of the two third fixed shafts 34 close to middle positions, a first fixed shaft 29 is rotationally connected to one end of the each of the two connecting arms 33 away from the third fixed shafts 34, first connecting blocks 31 are sleeved and fixed to portions of circumferential outer walls of the two first fixed shafts 29 away from two ends, a single first support disk 13 is welded onto sides of the four first connecting blocks 31 away from the baffle plate 14, the first support disk 13 is connected with the insertion rod 32 by a bolt, a retractable spring 28 is fixed in a position of one side of the first support disk 13 close to the baffle plate 14 but away from a center of circle, and one end of the retractable spring 28 away from the first support disk 13 is connected to the rotating shaft 19; and by arranging the handles 27, the rotating shafts 19 can be rotated to drive the fixed box 4 to rotate, and coating and drying operations can be performed simultaneously, which greatly improves coating efficiency, reduces downtime during the coating process, and improving the operating speed and capacity utilization of the production line, such that production tasks can be completed faster to meet market 2024259756   06 Nov 2024 demands.

[0041] This embodiment provides a flexible pressure sensor encapsulation method, including the following steps:

[0042] S1. first, drawing out the ventilation plate 12 close to a top end of the fixed box 4, then putting a substrate layer of the flexible pressure sensor that needs to be coated above the storage plate 38, and screwing the limiting nut 24 to adjust the upper movable plate 10 and the lower movable plate 11 to appropriate heights;

[0043] S2. second, determining dimensions of the substrate layer by comparing with a length and a width of the substrate layer according to the first scale 44 and the second scale 45, screwing the first nuts 22 and the second nuts 26, and adjusting positions of the first limiting rods 7 and the second limiting rods 9 through the first marking ruler 1004 and the second marking ruler 1005, such that an area surrounded by the first limiting rods 7 and the second limiting rods 9 corresponds to an area of the substrate layer that needs to be coated;

[0044] S3: adding painting to an inner cavity of movable tube 8, pressing the second support disk 17 to bring the spraying brush head 20 into close contact with the substrate layer, pushing the movable tube 8 back and forth along the movable rail hole 1001 to complete the coating operation, then releasing the second support disk 17, and allowing the movable tube 8 to be lifted under the action of the support spring 16, such that the spraying brush head 20 is disengaged from the substrate layer;

[0045] S4. pushing the ventilation plate 12 to enable the substrate layer to be completely covered by the ventilation plate 12, rotating the rotating snapping block 39 to enable the rotating snapping block 39 and the fixed base 4 to form a snap-in connection relationship to prevent the ventilation plate 12 from sliding abnormally; gripping the handles 27 tightly to increase connection angles between the connecting arms 33 and the handles 27, and distances between opposite ends of the connecting arms 33 and the handles 27 are accordingly increased, such that the first support disk 13 is pushed to move away from the handle 27, the insertion rod 32 is detached from the arc-shaped snapping blocks 36, the arc-shaped snapping blocks 36 completely slide back to the snapping slots 1901 under the action of the connecting springs 37; and rotating the rotating shafts 19 to flip the fixed box 4 by 180 degrees, then releasing the handles 27, allowing the insertion rod 32 to compress the arc-shaped snapping blocks 36 under the action of the retractable spring 28, causing them to move towards both sides and to form a snap-in connection relationship with the rectangular snapping slot 201; and

[0046] S5. having the substrate layer at a bottom space of the fixed box 4 heated by the heating plate 1 to accelerate a drying speed of the coating, allowing the ventilation plate 12 at a bottom of the fixed box 4 to be rotated to the top end of the fixed box, drawing out the ventilation plate 2024259756   06 Nov 2024 12 at the top end, and placing a new substrate layer that needs to be coated onto the storage plate 38, such that cyclic coating operations are completed.

[0047] The foregoing description, merely being an optimal specific implementation mode of the present invention, is not intended to limit the scope of protection of the present invention, and any equivalent substitution or change made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof within the technical scope of the present invention is intended to be encompassed within the scope of protection of the present invention.

Claims

1. A flexible pressure sensor encapsulation device, comprising a bearing base plate (3), support arms (2) are welded and fixed onto an upper surface of the bearing base plate (3) close to middle portions of both ends, rotating shafts (19) are inserted into portions close to middle positions of adjacent sides of the two support arms (2), a single storage mechanism is mounted on adjacent sides of the two rotating shafts (19), and the storage mechanism comprises a fixed box (4); loading plates (5) are fixed at tops of the two support arms (2) by bolts, support columns (6) are inserted into upper surfaces of two loading plates (5) close to portions of two sides, an outer circumference of each of the support columns (6) is in threaded connection with a limiting nut (24), a single limiting mechanism is installed at tops of the four support columns (6), the limiting mechanism comprises a lower movable plate (11), and a heating plate (1) is fixed onto a portion close to a middle position of the upper surface of the bearing base plate (3).

2. The flexible pressure sensor encapsulation device according to claim 1, wherein the limiting mechanism comprises the lower movable plate (11), top ends of the four support columns (6) are welded with the single lower movable plate (11), spacer blocks (21) are fixed onto an upper surface of the lower movable plate (11) close to portions of four corners , a single upper movable plate (10) is fixed to tops of the four spacer blocks (21) by bolts, a penetrating movable rail hole (1001) is formed on an upper surface of the upper movable plate (10), a penetrating movable hole is formed on the upper surface of the lower movable plate (11), the penetrating movable hole corresponds to the penetrating movable rail hole (1001), a coating mechanism is connected to an inner wall of the penetrating movable rail hole (1001) in a sliding manner, and the coating mechanism comprises a movable tube (8).

3. The flexible pressure sensor encapsulation device according to claim 2, wherein the coating mechanism further comprises a movable snapping block (15), the movable snapping block (15) is connected to a gap portion between the upper movable plate (10) and the lower movable plate (11) in a sliding manner, a penetrating insertion hole is formed at a top of the movable snapping block (15), the movable tube is inserted into a circumferential inner wall of the penetrating insertion hole (8), a second support disk (17) is in threaded connection to a portion of a circumferential outer wall of the movable tube (8) close to a top, a support spring (16) is fixed onto a lower surface of the second support disk (17) close to a portion of a circumferential edge, a sliding sheet (18) is welded at a bottom end of the support spring (16), and a spraying brush head (20) is inserted and fixed at a bottom end of the movable tube (8).

4. The flexible pressure sensor encapsulation device according to claim 3, wherein limiting2024259756   06 Nov 2024sliding holes (1002) are formed on the upper surface of the upper movable plate (10) close to portions of both sides, first limiting rods (7) are slidably connected to the gap between the upper movable plate (10) and the lower movable plate (11) close to portions of both ends, first sliding columns (23) are welded onto upper surfaces of the two first limiting rods (7) close to both sides, the first sliding columns (23) pass through the limiting sliding holes (1002), the first sliding columns (23) are matched with the limiting sliding holes (1002), and first nuts (22) are in threaded connection to portions on outer circumferential walls of the first sliding columns (23) close to tops.

5. The flexible pressure sensor encapsulation device according to claim 4, wherein second limiting sliding holes (1003) are formed on the upper surface of the upper movable plate (10) close to portions of both ends, sliding holes corresponding to the second limiting sliding holes (1003) are formed on the upper surface of the lower movable plate (11) close to portions of both ends, second limiting rods (9) are slidably connected to the upper surface of the upper movable plate (10) close to portions of both sides, second sliding columns (25) are welded onto lower surfaces of the second limiting rods (9) close to portions of both ends, the second sliding columns (25) pass through the second limiting sliding holes (1003) and the lower movable plate (11), the second sliding columns (25) are matched with the limiting sliding holes (1003), and second nuts (26) are in threaded connection to circumferential outer walls of the second sliding columns (25) close to portions of end bottoms.

6. The flexible pressure sensor encapsulation device according to claim 1, wherein a storage mechanism comprises the fixed box (4), the fixed box (4) is clamped on adjacent sides of the two rotating shafts (19), a storage plate (38) is welded onto portions close to middle positions of inner walls of two sides the fixed box (4), sliding rails (401) are formed on the inner walls of the two sides the fixed box (4) close to portions of both ends, the sliding rails (401) at the both ends are connected with a single ventilation plate (12) is a sliding manner.

7. The flexible pressure sensor encapsulation device according to claim 6, wherein a second support block (42) is welded onto a middle portion close to a top of an outer wall of one side of the ventilation plate (12), a first support block (41) is fixed at a top of the second support block (42) by a bolt, a connecting shaft (40) is inserted at a top of one side of the first support block (41) close to the fixed base (4), and a rotating snapping block (39) is rotationally connected to one side of a circumferential outer wall of the connecting shaft (40) away from the first support block (41).

8. The flexible pressure sensor encapsulation device according to claim 7, wherein one sealing plate (43) is welded at one side of inner walls at both ends of the fixed box (4) close to a top end, another sealing plate (43) is welded at the other side of inner walls at both ends of the2024259756   06 Nov 2024fixed box (4) close to a bottom end, a first scale (44) is snap-fitted at a top end of each of the sealing plates (43), a second scale (45) is snap-fitted on a portion close to one end of an upper surface and a lower surface of the fixed box (4), a first marking ruler (1004) is snap-fitted on a portion of the upper surface of the upper movable plate (10) close to one side, the first marking ruler (1004) corresponds to the first scale (44), a second marking ruler (1005) is snap-fitted on a portion of the upper surface of the upper movable plate (10) close to one end, and the second marking ruler (1005) corresponds to the second scale (45).

9. The flexible pressure sensor encapsulation device according to claim 6, wherein symmetrical snapping slots (1901) with a same size are formed on circumferential outer walls of the rotating shafts (19) close to one side, spring holes (1902) are formed on portions close to four corners of an inner wall of adjacent sides of the two snapping slots (1901), arc-shaped snapping blocks (36) are inserted into inners walls of the snapping slots (1901), connecting springs (37) are fixed on portions of adjacent sides of two arc-shaped snapping blocks (36) close to four corners, the connecting springs (37) all pass through the spring holes (1902), and semicircular grooves (3601) are formed on portions close to middle positions of adjacent sides of the two arc-shaped snapping blocks (36); an insertion rod (32) is inserted into one side of each of the rotating shafts (19), a conical insertion head (3201) is welded on one side of the insertion rod (32) close to the arc-shaped snapping block (36), a rectangular snapping slot (201) is formed on one side of each of the support arms (2), the rectangular snapping slot (201) is matched with the arc-shaped snapping block (36), a baffle plate (14) is fixedly connected to a portion of a circumferential outer wall of the rotating shaft (19) close to one end, a pair of second connecting blocks (35) is welded onto each portion of one side of the baffle plate (14) close to a top away from the arc-shaped snapping block (36), second fixed shafts (30) are inserted into adjacent sides of the two pairs of second connecting blocks (35), handles (27) are rotationally connected to portions of circumferential inner walls of the two second fixed shafts (30) close to middle positions, a third fixed shaft (34) is inserted into one end of each of the two handles (27) away from the second fixed shaft (30), connecting arms (33) are rotationally connected to portions of circumferential outer walls of the two third fixed shafts (34) close to middle positions, a first fixed shaft (29) is rotationally connected to one end of the each of the two connecting arms (33) away from the third fixed shafts (34), first connecting blocks (31) are sleeved and fixed to portions of circumferential outer walls of the two first fixed shafts (29) away from two ends, a single first support disk (13) is welded onto sides of the four first connecting blocks (31) away from the baffle plate (14), the first support disk (13) is connected with the insertion rod (32) by a bolt, a retractable spring (28) is fixed in a position of one side of the first support disk (13) close to2024259756   06 Nov 2024the baffle plate (14) but away from a center of circle, and one end of the retractable spring (28) away from the first support disk (13) is connected to the rotating shafts (19).

10. A flexible pressure sensor encapsulation method, comprising the flexible pressure sensor encapsulation device according to claim 9, wherein the method comprises the following steps:S1. first, drawing out the ventilation plate (12) close to a top end of the fixed box (4), then putting a substrate layer of the flexible pressure sensor that needs to be coated above the storage plate (38), and screwing the limiting nut (24) to adjust the upper movable plate (10) and the lower movable plate (11) to appropriate heights;S2. second, determining dimensions of the substrate layer by comparing with a length and a width of the substrate layer according to the first scale (44) and the second scale (45), screwing the first nuts (22) and the second nuts (26), and adjusting positions of the first limiting rods (7) and the second limiting rods (9) through the first marking ruler (1004) and the second marking ruler (1005), such that an area surrounded by the first limiting rods (7) and the second limiting rods (9) corresponds to an area of the substrate layer that needs to be coated;S3: adding painting to an inner cavity of movable tube (8), pressing the second support disk (17) to bring the spraying brush head (20) into close contact with the substrate layer, pushing the movable tube (8) back and forth along the movable rail hole (1001) to complete the coating operation, then releasing the second support disk (17), and allowing the movable tube (8) to be lifted under the action of the support spring (16), such that the spraying brush head (20) is disengaged from the substrate layer;S4. pushing the ventilation plate (12) to enable the substrate layer to be completely covered by the ventilation plate (12), rotating the rotating snapping block (39) to enable the rotating snapping block (39) and the fixed base (4) to form a snap-in connection relationship to prevent the ventilation plate (12) from sliding abnormally; gripping the handles (27) tightly to increase connection angles between the connecting arms (33) and the handles (27), and increase distances between opposite ends of the connecting arms (33) and the handles (27), such that the first support disk (13) is pushed to move away from the handles (27), the insertion rod (32) is detached from the arc-shaped snapping blocks (36), the arc-shaped snapping blocks (36) completely slide back to the snapping slots (1901) under the action of the connecting springs (37); and rotating the rotating shafts (19) to flip the fixed box (4) by 180 degrees, then releasing the handles (27), allowing the insertion rod (32) to compress the arc-shaped snapping blocks (36) under the action of the retractable spring (28), causing them to move towards both sides and to form a snap-in connection relationship with the2024259756   06 Nov 2024rectangular snapping slot (201); andS5. having the substrate layer at a bottom space of the fixed box (4) heated by the heating plate (1) to accelerate a drying speed of the coating, allowing the ventilation plate (12) at a bottom of the fixed box (4) to be rotated to the top end of the fixed box, drawing out the ventilation plate (12) at the top end, and placing a new substrate layer that needs to be coated onto the storage plate (38), such that cyclic coating operations are completed.

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