A flexible pressure sensor with biomimetic microstructure

Abstract

The utility model discloses a flexible pressure sensor with bionic microstructure relates to flexible pressure sensor technical field, including main part structure, including sensor body, the top of sensor body is provided with pulse diagnosis appearance, the surface fixedly connected with flexible base area of pulse diagnosis appearance, the bottom of pulse diagnosis appearance is provided with the clamping groove, both sides of the clamping groove inner chamber all are provided with the dismounting spare, and cooperate with the resin plate, the top of the clamping groove inner chamber is provided with the ejection spare, through the fixed block of dismounting spare and fixed groove cooperation realizes quick locking, realizes quick unlocking through pressing block, and the second spring of cooperation ejection spare automatic ejection resin plate, thereby replaces traditional screw fastening and adhesive bonding, need not special tool to complete dismounting, and can reduce peeling damage.

Description

Technical Field

[0001] This utility model relates to the field of flexible pressure sensor technology, and in particular to a flexible pressure sensor with a biomimetic microstructure. Background Technology

[0002] Flexible pressure sensors, with their excellent deformation adaptability and fit, have shown broad application prospects in the field of wearable medical devices. Among them, flexible pressure sensors with biomimetic microstructures have become core sensing components of wristband-type wearable pulse diagnostic devices because they can significantly improve pressure sensitivity and the ability to capture small signals by mimicking the microscopic morphology of biological surfaces (such as gecko foot bristles and human fingerprint textures). In the structural design of existing wristband-type wearable pulse diagnostic devices, multiple flexible pressure sensors are usually pre-integrated on a rigid or semi-rigid base module. This provides stable support for the flexible sensors and facilitates the centralized arrangement and welding of sensor leads, thus solving the connection and adaptation problem between the flexible sensing layer and the rigid signal processing unit. The base module is generally fixed to the main body of the pulse diagnostic device using screw fastening or silicone adhesive bonding.

[0003] However, the above-mentioned installation structure has significant drawbacks in practical applications: First, the screw fastening method requires the use of special tools for disassembly, which is cumbersome. The silicone adhesive has strong interfacial adhesion, and a large external force is required during disassembly, which can easily cause the biomimetic microstructure layer and electrode layer of the flexible sensor to peel off and be damaged from the base module. Second, whether it is fixed by screws or adhesive, it is difficult to achieve rapid separation of the base module. When the sensor experiences performance degradation due to long-term use (such as decreased sensitivity or signal drift) or needs to be replaced with a biomimetic microstructure sensor of different specifications to suit different users, the disassembly process is time-consuming and laborious, which seriously affects the efficiency of equipment maintenance and the user experience. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing flexible pressure sensors with biomimetic microstructures, this utility model is proposed.

[0006] Therefore, the problems to be solved by this utility model are how to solve the problems of screw fastening requiring special tools for disassembly, silicone adhesive causing easy peeling and damage to flexible sensors during disassembly, and difficulty in achieving rapid separation of the base module.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a flexible pressure sensor with a biomimetic microstructure, comprising: a main structure including a sensor body, a pulse diagnostic instrument disposed on the top of the sensor body, and a flexible baseband fixedly connected to the surface of the pulse diagnostic instrument; and a disassembly assembly including a resin plate fixedly connected to the top of the sensor body, a slot being provided at the bottom of the pulse diagnostic instrument, disassembly components being provided on both sides of the inner cavity of the slot and cooperating with the resin plate, and an ejector being provided at the top of the inner cavity of the slot.

[0008] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, the disassembly component includes a storage groove formed on both sides of a resin plate, a first spring is fixedly connected to the inner cavity of the storage groove, a fixing block is fixedly connected to the surface of the first spring, and the side of the fixing block away from the first spring passes through the storage groove and extends outside the storage groove.

[0009] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, a fixing groove is provided through both sides of the inner cavity of the slot, and it cooperates with the fixing block.

[0010] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, the inner cavity of the fixing groove is slidably connected to a pressing block, which cooperates with the fixing block.

[0011] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, wherein: sliders are fixedly connected to both sides of the pressing block, and the inner cavity of the fixing groove is provided with a sliding groove that cooperates with the slider.

[0012] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, the ejector includes a push plate disposed on the top of the resin plate, and a second spring is fixedly connected to the top of the push plate and fixedly connected to the inner cavity of the slot.

[0013] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, the second spring has two sets and is symmetrically distributed on the top of the push plate.

[0014] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, the push plate is fixedly connected to both sides with limiting blocks, and the inner cavity of the slot is provided with a limiting groove that cooperates with the limiting blocks.

[0015] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, the flexible baseband has two sets, and a first Velcro fastener is fixedly connected to the surface of one side of the flexible baseband.

[0016] As a preferred embodiment of the flexible pressure sensor with biomimetic microstructure described in this utility model, a second Velcro fastener is fixedly connected to the surface of the flexible baseband on the other side, and it cooperates with the first Velcro fastener.

[0017] The advantages of this utility model are as follows: quick locking is achieved by the cooperation of the fixing block and fixing groove of the disassembly and assembly parts, quick unlocking is achieved by the pressing block, and the resin plate is automatically ejected by the second spring of the ejector part, thereby replacing the traditional screw fastening and adhesive bonding. Disassembly and assembly can be completed without special tools, and peeling damage can be reduced. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of a flexible pressure sensor with a biomimetic microstructure.

[0020] Figure 2 This is a breakdown diagram of the assembly and disassembly structure of a flexible pressure sensor with a biomimetic microstructure.

[0021] Figure 3 This is a partial structural diagram of a disassembled component of a flexible pressure sensor with a biomimetic microstructure.

[0022] Figure 4 This is a breakdown diagram of the fixing groove and pressing block structure of a flexible pressure sensor with a biomimetic microstructure.

[0023] Figure 5 For flexible pressure sensors with biomimetic microstructures Figure 4 Enlarged view of region A in the middle.

[0024] In the diagram: 1. Main structure; 11. Sensor body; 12. Pulse diagnostic instrument; 13. Flexible baseband; 2. Assembly / disassembly assembly; 21. Resin board; 22. Slot; 23. Assembly / disassembly part; 24. Ejector; 231. Storage slot; 232. First spring; 233. Fixing block; 234. Fixing groove; 235. Pressing block; 236. Slider; 237. Slide groove; 241. Push plate; 242. Second spring; 243. Limiting block; 244. Limiting groove; 131. First Velcro; 132. Second Velcro. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1, referring to Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a flexible pressure sensor with a biomimetic microstructure, including: a main structure 1, including a sensor body 11, a pulse diagnostic instrument 12 disposed on the top of the sensor body 11, and a flexible baseband 13 fixedly connected to the surface of the pulse diagnostic instrument 12; and a disassembly assembly 2, including a resin plate 21 fixedly connected to the top of the sensor body 11, a slot 22 opened at the bottom of the pulse diagnostic instrument 12, disassembly parts 23 disposed on both sides of the inner cavity of the slot 22 and cooperating with the resin plate 21, and an ejector part 24 disposed at the top of the inner cavity of the slot 22.

[0029] The sensor body 11, as the core sensing component, achieves high-sensitivity pressure detection through its biomimetic microstructure, providing accurate pulse signals to the pulse diagnostic instrument 12. The pulse diagnostic instrument 12 is the carrier for signal reception and processing, and the flexible baseband 13 on its surface ensures the fit between the device and the human wrist, improving wearing comfort and detection stability.

[0030] The resin plate 21 on the top of the sensor body 11 and the slot 22 at the bottom of the pulse diagnostic instrument 12 form a plug-in fit, replacing the traditional screws or adhesives for fixing; the disassembly and assembly part 23 enables the resin plate 21 and the slot 22 to lock quickly, and the ejector part 24 assists in quick separation during disassembly. The two work together to make disassembly and assembly without special tools, avoiding damage to the biomimetic microstructure layer or electrode layer of the sensor body 11 during disassembly, and providing structural support for the maintenance and replacement of the sensor.

[0031] The working principles of the pulse diagnosis instrument 12 and the sensor body 11 are existing technologies, which are clearly known to those skilled in the art, and will not be elaborated here.

[0032] Example 2, refer to Figures 1-5This is the second embodiment of the present invention, which is based on the previous embodiment.

[0033] Specifically, the disassembly component 23 includes a storage groove 231 opened on both sides of the resin plate 21. A first spring 232 is fixedly connected to the inner cavity of the storage groove 231. A fixing block 233 is fixedly connected to the surface of the first spring 232. The side of the fixing block 233 away from the first spring 232 passes through the storage groove 231 and extends to the outside of the storage groove 231.

[0034] The storage grooves 231 on both sides of the resin plate 21 provide storage space for the fixing block 233, preventing the fixing block 233 from obstructing the fit when inserting or removing it; the first spring 232 is fixed in the inner cavity of the storage groove 231, providing elastic driving force for the fixing block 233; when the fixing block 233 is aligned with the side structure of the slot 22, the first spring 232 releases elastic potential energy to push the fixing block 233 out of the storage groove 231, thereby locking the resin plate 21 and the slot 22.

[0035] Specifically, the inner cavity of the card slot 22 has a fixing groove 234 through it on both sides, which cooperates with the fixing block 233.

[0036] When the resin plate 21 is inserted into the slot 22 to the designated position, the fixing block 233 is embedded into the fixing groove 234 under the action of the first spring 232. The resin plate 21 and the pulse diagnostic instrument 12 are rigidly locked through the concave-convex fit, which avoids the two from separating due to vibration or external force during use and ensures the detection stability of the sensor body 11.

[0037] Specifically, the inner cavity of the fixing groove 234 is slidably connected to a pressing block 235, which cooperates with the fixing block 233.

[0038] The pressing block 235 is in direct contact with the fixing block 233. When disassembly is required, the pressing block 235 is pressed into the inside of the slot 22. The pressing block 235 pushes the fixing block 233 to compress the first spring 232 and retract into the storage groove 231, so that the fixing block 233 is disengaged from the fixing groove 234, thereby releasing the lock between the resin plate 21 and the slot 22.

[0039] Specifically, sliders 236 are fixedly connected to both sides of the pressing block 235, and the inner cavity of the fixing groove 234 is provided with a sliding groove 237, which cooperates with the sliders 236.

[0040] The sliders 236 on both sides of the pressing block 235 are embedded in the sliding grooves 237 in the inner cavity of the fixing groove 234 to form a sliding guide pair, which restricts the pressing block 235 to move only along the axial direction of the sliding groove 237, avoids deviation or jamming when pressing, and ensures that the pressing block 235 can accurately act on the force point of the fixing block 233.

[0041] Specifically, the ejector 24 includes a push plate 241 disposed on the top of the resin plate 21. A second spring 242 is fixedly connected to the top of the push plate 241 and is fixedly connected to the inner cavity of the slot 22.

[0042] Push plate 241 is disposed on top of resin plate 21 and connected to second spring 242 fixed to the top of inner cavity of slot 22. When resin plate 21 is inserted into slot 22, push plate 241 is squeezed by resin plate 21, causing second spring 242 to compress and store elastic potential energy. When pressing block 235 unlocks fixing block 233, second spring 242 releases elastic potential energy to push push plate 241 downward, pushing resin plate 21 out of slot 22, realizing rapid separation of sensor body 11 and pulse diagnostic instrument 12.

[0043] Specifically, there are two sets of second springs 242, which are symmetrically distributed on the top of push plate 241.

[0044] Two sets of evenly distributed second springs 242 can provide symmetrical elastic driving force to the push plate 241, ensuring that the push plate 241 remains horizontal during the ejection process and avoiding tilting of the push plate 241 due to unilateral force.

[0045] Specifically, limit blocks 243 are fixedly connected to both sides of the push plate 241, and the inner cavity of the slot 22 is provided with a limit groove 244, which cooperates with the limit block 243.

[0046] The limiting blocks 243 on both sides of the push plate 241 are embedded in the limiting grooves 244 in the inner cavity of the slot 22 to form a limiting guide structure, which restricts the push plate 241 to move up and down along the axial direction of the limiting groove 244, avoids horizontal displacement of the push plate 241 during compression or ejection, and ensures that the push plate 241 always maintains full contact with the resin plate 21.

[0047] Specifically, there are two sets of flexible basebands 13, with a first Velcro 131 fixedly connected to the surface of one side of the flexible baseband 13.

[0048] The flexible baseband 13 itself has good deformation adaptability and can conform to the curve of the human wrist. The first Velcro 131 serves as a connecting and mating part, providing an attachment point for fixing to the baseband on the other side. Compared with traditional buckle fixing, Velcro has the advantage of a large adjustment range, which can adapt to wrists of different thicknesses and improve wearing comfort. At the same time, Velcro is convenient to attach and detach.

[0049] Specifically, a second Velcro 132 is fixedly connected to the surface of the other flexible baseband 13 and cooperates with the first Velcro 131.

[0050] The second hook and loop fastener 132 and the first hook and loop fastener 131 form a complementary adhesive structure. When wearing the garment, the flexible base bands 13 on both sides are wrapped around the wrist, and the first hook and loop fastener 131 and the second hook and loop fastener 132 are attached to achieve fixation. The operation is simple and efficient.

[0051] Working principle: During the sensor installation stage, press the fixing blocks 233 on both sides of the top resin plate 21 of the sensor body 11. The fixing blocks 233 compress the first spring 232 and retract completely into the storage groove 231. Then, align the resin plate 21 with the slot 22 at the bottom of the pulse diagnostic instrument 12 and insert it. During the insertion process, the top of the resin plate 21 contacts the push plate 241 and pushes it upward. The push plate 241 compresses the two evenly distributed second springs 242. The limiting blocks 243 on both sides of the push plate 241 slide along the limiting groove 244 to ensure that the push plate 241 moves horizontally. When the resin plate 21 is inserted to the designated position, the storage groove 231 aligns with the fixing grooves 234 on both sides of the slot 22. The first spring 232 releases elastic potential energy to push the fixing blocks 233 out of the storage groove 231 and into the fixing groove 234, thereby locking the resin plate 21 with the slot 22 and completing the installation of the sensor body 11 and the pulse diagnostic instrument 12.

[0052] During the sensor disassembly stage, press the pressing block 235 in the fixing groove 234. The sliders 236 on both sides of the pressing block 235 slide along the sliding groove 237 to ensure that the pressing block 235 accurately pushes the fixing block 233 into the storage groove 231 and releases the lock. At this time, the second spring 242 releases elastic potential energy, pushes the push plate 241 to move downward, and pushes the resin plate 21 out of the slot 22, realizing the rapid separation of the sensor body 11 and the pulse diagnostic instrument 12, which is convenient for maintenance or replacement.

[0053] During testing, the pulse diagnostic instrument 12 is attached to the wrist and wrapped around the flexible basebands 13 on both sides. The first Velcro 131 of one baseband is attached to the second Velcro 132 of the other baseband to complete the wearing. The biomimetic microstructure of the sensor body 11 is attached to the skin to perform pressure detection.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flexible pressure sensor with a biomimetic microstructure, characterized in that: include, The main structure (1) includes a sensor body (11), a pulse diagnostic instrument (12) is disposed on the top of the sensor body (11), and a flexible baseband (13) is fixedly connected to the surface of the pulse diagnostic instrument (12); and, The disassembly assembly (2) includes a resin plate (21) fixedly connected to the top of the sensor body (11). The bottom of the pulse diagnostic instrument (12) is provided with a slot (22). Disassembly parts (23) are provided on both sides of the inner cavity of the slot (22) and cooperate with the resin plate (21). An ejector part (24) is provided at the top of the inner cavity of the slot (22).

2. The flexible pressure sensor with a biomimetic microstructure as described in claim 1, characterized in that: The disassembly component (23) includes a storage groove (231) opened on both sides of the resin plate (21). A first spring (232) is fixedly connected to the inner cavity of the storage groove (231). A fixing block (233) is fixedly connected to the surface of the first spring (232). The side of the fixing block (233) away from the first spring (232) passes through the storage groove (231) and extends to the outside of the storage groove (231).

3. The flexible pressure sensor with a biomimetic microstructure as described in claim 2, characterized in that: The inner cavity of the card slot (22) is provided with a fixing slot (234) on both sides, which cooperates with the fixing block (233).

4. The flexible pressure sensor with a biomimetic microstructure as described in claim 3, characterized in that: The inner cavity of the fixing groove (234) is slidably connected to a pressing block (235), which cooperates with the fixing block (233).

5. The flexible pressure sensor with a biomimetic microstructure as described in claim 4, characterized in that: Both sides of the pressing block (235) are fixedly connected to sliders (236), and the inner cavity of the fixing groove (234) is provided with a sliding groove (237), which cooperates with the slider (236).

6. The flexible pressure sensor with a biomimetic microstructure as described in claim 1, characterized in that: The ejector (24) includes a push plate (241) disposed on the top of the resin plate (21), the top of the push plate (241) is fixedly connected to a second spring (242) and fixedly connected to the inner cavity of the slot (22).

7. The flexible pressure sensor with a biomimetic microstructure as described in claim 6, characterized in that: The second spring (242) has two sets and is symmetrically distributed on the top of the push plate (241).

8. The flexible pressure sensor with a biomimetic microstructure as described in claim 7, characterized in that: Both sides of the push plate (241) are fixedly connected to limit blocks (243), and the inner cavity of the slot (22) is provided with a limit groove (244) that cooperates with the limit block (243).

9. The flexible pressure sensor with a biomimetic microstructure as described in claim 1, characterized in that: The flexible baseband (13) has two sets, and a first Velcro (131) is fixedly connected to the surface of one side of the flexible baseband (13).

10. The flexible pressure sensor with a biomimetic microstructure as described in claim 9, characterized in that: The surface of the flexible baseband (13) on the other side is fixedly connected with a second Velcro (132), which cooperates with the first Velcro (131).

Images