Integrated forming die for dielectric layer of ionization sensor

Abstract

The utility model provides an integrated forming die for an ionizing sensor dielectric layer, which relates to the technical field of sensor manufacturing, and comprises an upper coining piston and a lower coining piston, the steps of liquid injection, heating and curing, pressing and shaping and the like are integrated in a closed ionic gel liquid accommodating cavity through the cooperation of the upper coining piston and the lower coining piston, so that the manufacturing efficiency is improved, and the cost is reduced. Compared with a traditional step-by-step preparation method, the method has the advantages that the problems of interface defects and non-standardization are avoided, the preparation period is remarkably shortened, meanwhile, high consistency of the thickness, the size and the micro-nano structure of the dielectric layer is ensured, and the microstructure prints at the bottoms of the first inner column and the second inner column are detachably designed; the structure can be quickly replaced by a graded self-filling microstructure, a convex array or a porous substrate structure according to requirements, the adaptability of the mold is greatly expanded, in addition, the injection amount of electrolyte can be accurately controlled through the design of adjusting valves of a liquid inlet channel and a liquid discharging channel, redundant liquid is recycled, and raw material waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor manufacturing technical field, concretely is a kind of integrated forming die for dielectric layer of off-electric sensor. BACKGROUND

[0002] Off-electric sensor shows huge application potential in wearable device, electronic skin, human-computer interaction interface and other fields, and dielectric layer as the key component of off-electric sensor, its preparation technology plays a decisive role on the performance of sensor. At present, off-electric sensor dielectric layer preparation technology mainly has filling ion conductor liquid method, hierarchical self-filling microstructure setting method, layering protruding array and porous substrate structure method, sacrificial material preparation three-dimensional porous structure etc. Filling ion conductor liquid method is suitable for making high-transparency sensor device and improving the sensing performance of sensor, and the method is simple to operate. Hierarchical self-filling microstructure setting method is beneficial to improve the performance of off-electric sensor under different pressure environment, by setting at least two different micron size protruding structures and groove structures on the surface of dielectric layer, the groove is used to accept the protruding structure pressed under pressure. This hierarchical self-filling microstructure design makes the dielectric layer have greater compressibility and deformability in ultra-wide pressure range, thereby improving the sensitivity, response range, stability and other performances of capacitive flexible tactile sensor, and has broad application prospect in robot, human health monitoring and high-pressure sensing field etc. Layering protruding array and porous substrate structure method forms complex microstructure by layering setting protruding array structure and porous substrate structure, and both adopt flexible material, and the compressibility of dielectric layer is enhanced. After applying this flexible dielectric layer to capacitive pressure sensor, the response range of sensor can be effectively increased, and detection sensitivity is improved, and the performance of sensor is further optimized.

[0003] The current mainstream several off-electric sensor dielectric layer preparation methods have problems of low efficiency, complex operation, low sample forming rate, non-standard dielectric layer forming, difficult to scale production and the like in sample preparation process. Especially, sample preparation needs to have micro-nano structure characteristics, and more relies on manual technology in laboratory sample preparation, so that each sample cannot be consistent in preparation process, and low yield, serious raw material consumption and the like exist in sample preparation process, therefore, we propose a kind of integrated forming die for off-electric sensor dielectric layer. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of integrated forming mould for dielectric layer of ion sensor, by the cooperation of upper and lower printing and pressing piston, liquid injection, heating solidification, pressing and shaping steps are integrated in closed ion gel liquid containing cavity, realize the integrated forming of dielectric layer, and the microstructure stamp of the microstructure stamp of the bottom of inner column one and inner column two adopts detachable design, expand the adaptability of mould, in addition, liquid inlet channel and liquid discharge channel accurately control the injection amount of electrolyte, and recover excess liquid, reduce raw material waste, solve the problem.

[0005] To achieve the above object, the utility model discloses the following technical scheme: a kind of integrated forming mould for dielectric layer of ion sensor, including upper printing and pressing piston and lower printing and pressing piston, the upper printing and pressing piston includes inner column one, the outer surface of the inner column one is slidably sleeved with fixed shell one;The lower printing and pressing piston includes base, the top of the base is fixedly installed with inner column two, the bottom of the inner column two is installed with heating pressure module, the outer side of the inner column two is sleeved with fixed shell two, the fixed shell two is fixedly connected at the top side of base, the bottom side of fixed shell one and the top side of fixed shell two abut.

[0006] Preferably, the side of the inner column one and the inner column two close to each other is provided with a microstructure stamp.

[0007] Preferably, the inner column one is provided with a liquid discharge channel, the inner column two is provided with a liquid inlet channel, the left side of the base is provided with a liquid injection port, and the liquid injection port is communicated with the liquid inlet channel.

[0008] Preferably, the upper printing and pressing piston and the lower printing and pressing piston cooperate to form an ion gel liquid containing cavity.

[0009] Preferably, the top outer surface of the inner column one is fixedly connected with a limiting plate, and the bottom side of the limiting plate abuts against the top side of the fixed shell one.

[0010] Preferably, the liquid inlet channel and the liquid discharge channel are both provided with an adjusting valve.

[0011] Preferably, the fixed shell one and the fixed shell two are both provided with a pressure detection device.

[0012] Preferably, the fixed shell one and the fixed shell two are both made of metal.

[0013] The utility model provides a kind of integrated forming mould for dielectric layer of ion sensor.Compared with the prior art, it has the following advantages:

[0014] 1. The utility model discloses a synergistic cooperation of upper and lower stamping and pressing pistons integrates the steps of liquid injection, heating curing and pressing and shaping in the closed ion gel liquid containing cavity, realizes the integrated forming of dielectric layer, avoids interface defects and non-standardization problems compared with the traditional step-by-step preparation method, significantly shortens the preparation period, ensures the high consistency of dielectric layer thickness, size and micro-nano structure at the same time, and the accurate temperature control and pressurizing function of the heating pressure module further optimizes the curing process, improves the structural stability and signal consistency of the sensor, and provides reliable technical support for mass production.

[0015] 2. The microstructure stamp of the bottom of the inner column one and the inner column two of the utility model adopts detachable design, can be replaced as hierarchical self-filling microstructure, convex array or porous base structure according to the demand, greatly expands the adaptability of the mould, in addition, the regulating valve design of liquid inlet channel and liquid outlet channel can accurately control the injection amount of electrolyte, and the excess liquid is recovered, and the raw material waste is reduced.

[0016] 3. The utility model discloses the microstructure stamp of the upper and lower stamping and pressing pistons is complementary design, and the mould can form complex micro-nano structure on the double side of dielectric layer simultaneously, effectively solve the technical problem that the double side micro-nano structure is difficult to build in traditional method, in addition, the abutting structure of the limiting plate of the inner column one top and the fixed shell limits the impression stroke, prevents the structure damage caused by excessive compression. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view structure schematic drawing of the main body of the utility model;

[0018] Figure 2 It is the split structure schematic drawing of the main body of the utility model;

[0019] Figure 3 It is the front view cross section structure schematic drawing of the main body of the utility model;

[0020] Figure 4 It is the front view cross section structure schematic drawing of the main body of the utility model.

[0021] In the drawing: 1, upper stamping and pressing piston; 2, lower stamping and pressing piston; 3, inner column one; 4, limiting plate; 5, fixed shell one; 6, base; 7, inner column two; 8, fixed shell two; 9, microstructure stamp; 10, liquid injection port; 11, heating pressure module; 12, liquid inlet channel; 13, liquid outlet channel. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] Please refer to Figures 1-4 The present application provides a technical scheme: an integrated forming die for a dielectric layer of an ion sensor, comprising an upper stamping and pressing piston 1 and a lower stamping and pressing piston 2, wherein the upper stamping and pressing piston 1 comprises an inner column 1, and the outer surface of the inner column 1 is slidably sleeved with a fixed shell 1.

[0024] The lower stamping and pressing piston 2 comprises a base 6, the top of the base 6 is fixedly installed with an inner column 2, the bottom of the inner column 2 is installed with a heating pressure module 11, the outer side of the inner column 2 is sleeved with a fixed shell 2, the fixed shell 2 is fixedly connected to the top side of the base 6, and the bottom side of the fixed shell 1 abuts against the top side of the fixed shell 2.

[0025] The inner column 1 and the inner column 2 are both provided with a microstructure stamp 9 on the side close to each other.

[0026] The inner column 1 is internally provided with a liquid discharge channel 13, the inner column 2 is internally provided with a liquid inlet channel 12, and the left side of the base 6 is provided with a liquid injection port 10 in communication with the liquid inlet channel 12.

[0027] When the integrated forming die for the dielectric layer of the ion sensor is used, the ion gel liquid is injected through the liquid injection port 10 on the left side of the base 6, and the liquid enters the closed chamber formed by the inner column 1 of the upper stamping and pressing piston 1 and the inner column 2 of the lower stamping and pressing piston 2 through the liquid inlet channel 12 in the inner column 2. During the forming process, the excess liquid or volatile solvent is discharged through the liquid discharge channel 13 in the inner column 1, and the abutting structure of the fixed shell 1 and the fixed shell 2 ensures the sealing property of the chamber to prevent liquid leakage, so as to complete the integrated forming of the dielectric layer.

[0028] The upper stamping and pressing piston 1 and the lower stamping and pressing piston 2 cooperate to form an ion gel liquid containing cavity, and the inner column 1 of the upper stamping and pressing piston 1 and the inner column 2 of the lower stamping and pressing piston 2 are close to each other through relative movement, and the microstructure stamp 9 at the bottom thereof cooperatively forms a closed chamber space.

[0029] The top outer surface of the inner column one 3 is fixedly connected with a limiting plate 4, the bottom side of the limiting plate 4 abuts against the top side of the fixed shell one 5, the limiting plate 4 serves as a mechanical limiting mechanism, limits the downward stroke of the inner column one 3 through the contact of the bottom side with the top of the fixed shell one 5, ensures that the upper printing pressure piston 1 will not excessively compress the chamber during the pressing process, avoids the deformation of the microstructure stamp 9 or the damage of the dielectric layer structure due to excessive pressure, and at the same time maintains the uniformity of the pressure in the chamber, guarantees the thickness and structure precision of the dielectric layer after forming.

[0030] The inner part of the liquid inlet channel 12 and the liquid outlet channel 13 is provided with an adjusting valve, which is installed in the liquid inlet channel 12 and the liquid outlet channel 13 for accurately controlling the injection amount of the ion gel liquid and the discharge amount of the excess liquid.

[0031] The inner part of the fixed shell one 5 and the fixed shell two 8 is provided with a pressure detection device, which is embedded in the inner part of the fixed shell one 5 and the fixed shell two 8 to monitor the pressure change in the chamber in real time, dynamically adjusts the output pressure of the heating and pressing module 11 by feeding back the pressure data to the control system, and ensures the stability and uniformity of the pressure during the forming process of the dielectric layer.

[0032] The fixed shell one 5 and the fixed shell two 8 are both made of metal, which has high strength and good heat conductivity, ensuring the structural stability of the mold in high pressure and high temperature environment, and assisting the uniform heat transfer of the heating and pressing module 11 to the inside of the chamber.

[0033] Working principle: when the integrated forming mold for dielectric layer of ion electric sensor is used, the ion gel liquid is injected through the liquid inlet 10 on the left side of the base 6, the liquid enters the closed chamber formed by the inner column one 3 of the upper printing pressure piston 1 and the inner column two 7 of the lower printing pressure piston 2 through the liquid inlet channel 12 in the inner column two 7, the microstructure stamp 9 arranged on the side of the inner column one 3 and the inner column two 7 is pressed to form a dielectric layer with double-sided micro-nano structure by the pressure and temperature provided by the heating and pressing module 11 during the pressing process, the excess liquid or volatile solvent is discharged through the liquid outlet channel 13 in the inner column one 3 during the forming process, the adjusting valves of the liquid inlet channel 12 and the liquid outlet channel 13 can control the liquid flow, the abutting structure of the fixed shell one 5 and the fixed shell two 8 ensures the sealing of the chamber, and the pressure detection device in the inner part of the fixed shell one 5 and the fixed shell two 8 monitors the pressure change in real time, which cooperates with the high strength and heat conductivity of the metal material to guarantee the stability and uniformity of the forming process, and the limiting plate 4 on the top of the inner column one 3 limits the pressing stroke by abutting against the fixed shell one 5 to prevent excessive compression from causing structure damage.

[0034] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An integrated forming die for a dielectric layer of an electrical sensor, comprising an upper stamping piston (1) and a lower stamping piston (2), characterized in that: The upper printing and pressing piston (1) comprises an inner column (3), and the outer surface of the inner column (3) is sleeved with a fixed shell (5); The lower printing and pressing piston (2) comprises a base (6), the top of the base (6) is fixedly installed with an inner column (7), the bottom of the inner column (7) is installed with a heating pressure module (11), the outer side of the inner column (7) is sleeved with a fixed shell (8), the fixed shell (8) is fixedly connected to the top side of the base (6), and the bottom side of the fixed shell (5) is abutted with the top side of the fixed shell (8).

2. An integrated forming mold for a dielectric layer of an electrostatic sensor according to claim 1, characterized in that: The inner column (3) and the inner column (7) are both provided with microstructure stamps (9) on the side close to each other.

3. An integrated forming mold for a dielectric layer of an electrostatic sensor according to claim 1, characterized in that: The inner column (3) is internally provided with a liquid discharge channel (13), the inner column (7) is internally provided with a liquid inlet channel (12), and the left side of the base (6) is provided with a liquid injection port (10) in communication with the liquid inlet channel (12).

4. An integrated molding die for a dielectric layer of an electrically isolated sensor according to claim 1, wherein: The upper printing and pressing piston (1) and the lower printing and pressing piston (2) cooperate to form an ion gel liquid containing cavity.

5. An integrated forming mold for a dielectric layer of an electrostatic sensor according to claim 1, characterized in that: The top outer surface of the inner column (3) is fixedly connected with a limiting plate (4), and the bottom side of the limiting plate (4) is abutted with the top side of the fixed shell (5).

6. An integrated forming mold for a dielectric layer of an electrostatic sensor according to claim 3, characterized in that: The inner column (3) is internally provided with a liquid discharge channel (13), the inner column (7) is internally provided with a liquid inlet channel (12), and the left side of the base (6) is provided with a liquid injection port (10) in communication with the liquid inlet channel (12).

7. An integrated forming mold for a dielectric layer of an electrostatic sensor according to claim 1, characterized in that: The upper printing and pressing piston (1) and the lower printing and pressing piston (2) cooperate to form an ion gel liquid containing cavity.

8. An integrated forming mold for a dielectric layer of an electrostatic sensor according to claim 1, characterized in that: The top outer surface of the inner column (3) is fixedly connected with a limiting plate (4), and the bottom side of the limiting plate (4) is abutted with the top side of the fixed shell (5). The inner column (3) is internally provided with a liquid discharge channel (13), the inner column (7) is internally provided with a liquid inlet channel (12), and the left side of the base (6) is provided with a liquid injection port (10) in communication with the liquid inlet channel (12). The upper printing and pressing piston (1) and the lower printing and pressing piston (2) cooperate to form an ion gel liquid containing cavity. The top outer surface of the inner column (3) is fixedly connected with a limiting plate (4), and the bottom side of the limiting plate (4) is abutted with the top side of the fixed shell (5). The inner column (3) is internally provided with a liquid discharge channel (13), the inner column (7) is internally provided with a liquid inlet channel (12), and the left side of the base (6) is provided with a liquid injection port (10) in communication with the liquid inlet channel (12). The upper printing and pressing piston (1) and the lower printing and pressing piston (2) cooperate to form an ion gel liquid containing cavity. The top outer surface of the inner column (3) is fixedly connected with a limiting plate (4), and the bottom side of the limiting plate (4) is abutted with the top side of the fixed shell (5). The inner column (3) is internally provided with a liquid discharge channel (13), the inner column (7) is internally provided with a liquid inlet channel (12), and the left side of the base (6) is provided with a liquid injection port (10) in communication with the liquid inlet channel (12). The upper printing and pressing piston (1) and the lower printing and pressing piston (2) cooperate to form an ion gel liquid containing cavity. The top outer surface of the inner column (3) is fixedly

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