阅读说明：本技术 防爆软体触碰传感器 (Explosion-proof soft touch sensor ) 是由 邵珠峰 尤政 易希理 安敏·骆 段金昊 霍晔 鲍磊 于 2021-07-15 设计创作，主要内容包括：本发明公开了一种防爆软体触碰传感器,包括软体膜结构和底座,所述软体膜结构包括彼此相连的软体膜凸起和软体膜接口；所述底座与所述软体膜接口固定,所述底座与所述软体膜凸起之间形成封闭气腔；所述底座上安装有传感器；工作时,当所述软体膜凸起在无触碰时,所述软体膜凸起维持原有形状；当所述软体膜凸起受到外部触碰作用时,所述软体膜凸起产生形变,使得所述传感器检测到所述封闭气腔的压力变化或者所述软体膜凸起的内表面的形状改变,从而实现对触碰的感知以及对触碰具体状况的分析。本发明能实现触碰反馈、缓冲及触碰状态分析的一体化感知和保护,适用于面向涂装等防爆场合。(The invention discloses an explosion-proof soft touch sensor which comprises a soft membrane structure and a base, wherein the soft membrane structure comprises a soft membrane bulge and a soft membrane interface which are connected with each other; the base is fixed with the soft film interface, and a closed air cavity is formed between the base and the soft film bulge; a sensor is arranged on the base; when the soft body membrane bulge is in no touch during working, the soft body membrane bulge maintains the original shape; when the soft body membrane bulge is subjected to external touch, the soft body membrane bulge deforms, so that the sensor detects the pressure change of the closed air cavity or the shape change of the inner surface of the soft body membrane bulge, and the touch sensing and the specific touch condition analysis are realized. The touch sensing and protection system can realize integrated sensing and protection of touch feedback, buffering and touch state analysis, and is suitable for coating-oriented explosion-proof occasions and the like.)

1. The utility model provides an explosion-proof software touch sensor which characterized in that includes:

the soft membrane structure is made of flexible materials and comprises soft membrane bulges and soft membrane interfaces which are connected with each other;

the base is fixedly connected with the soft film interface, and a closed air cavity is formed between the base and the soft film bulge; a sensor is arranged on the base;

when the soft body membrane bulge is in no touch during working, the soft body membrane bulge maintains the original shape; when the soft body membrane bulge is subjected to external touch, the soft body membrane bulge deforms, so that the sensor detects the pressure change of the closed air cavity or the shape change of the inner surface of the soft body membrane bulge, and the touch sensing and the specific touch condition analysis are realized.

2. The explosion-proof soft touch sensor of claim 1, wherein the base comprises a base body and a cover plate, the base body and the cover plate clamping the soft membrane interface, the base body and the cover plate being fastened by fasteners.

3. The explosion-proof soft touch sensor according to claim 1, wherein the flexible material is a polymer material or silica gel.

4. The explosion-proof soft touch sensor of claim 1, wherein the soft film protrusion is in the shape of a revolution, a planar prism, or a protrusion structure other than the shape of a revolution and the planar prism.

5. The explosion-proof soft touch sensor of claim 1, wherein the soft membrane protrusions are capable of supporting gravity and additional acceleration through their own elasticity and structure to maintain their original shape without external force.

6. The explosion-proof soft touch sensor according to claim 1, wherein the soft film bulge cannot support gravity and additional acceleration due to its elasticity and structure, so that the original shape maintenance without external force cannot be realized, the base is provided with a one-way air valve for allowing external air to intelligently flow into the closed air cavity, so that the original shape maintenance without external force of the soft film bulge is realized by the pressure of the closed air cavity.

7. The explosion-proof soft touch sensor of claim 1, wherein the sensor is a barometric pressure sensor; when the explosion-proof soft body touch sensor works, when the soft body membrane bulge is under the action of external touch, the soft body membrane bulge generates deformation, and the air pressure sensor detects that the pressure of the closed air cavity changes due to the deformation of the soft body membrane bulge, so that the external touch is sensed.

8. The explosion-proof soft touch sensor according to claim 1, wherein the sensor is a camera, and the inner surface of the soft membrane bulge is provided with a specific optical feature; when the soft body membrane is protruded to be under the external touch action, the soft body membrane is protruded to deform, so that the specific optical characteristic deforms, and the camera detects and captures the size and the direction of the deformation of the specific optical characteristic, so that the whole touch state is sensed and analyzed.

9. The explosion-proof soft touch sensor according to claim 1, wherein when the sensor is an air pressure sensor, the explosion-proof soft touch sensor further comprises a sub-base, the sub-base is connected with the top of the soft membrane bulge, the sub-base and the base are respectively used for being installed on different positions or different installation surfaces of a surface to be installed, and the soft membrane bulge is in a strip shape and can be arranged around a rigid body.

10. The explosion-proof software touch sensor according to any one of claims 1-8, wherein there are a plurality of said explosion-proof software touch sensors arranged in a circular, rectangular or hexagonal array.

Technical Field

The invention relates to the technical field of touch sensors, in particular to an explosion-proof soft touch sensor.

Background

The touch sensor realizes touch sensing through detection of different principles, has wide application prospects in the fields of factories, detection, rescue, medical treatment, coating and the like, and can be divided into two categories, namely contact type and non-contact type.

Touch sensors typically incorporate a spring and circuit switch. After the touch occurs, the spring is stretched or compressed, the switch is closed, and an electric signal is generated to change; after the touch is eliminated, the switch is reset under the action of the spring. The travel of the touch sensor is small, only single-degree-of-freedom touch monitoring can be performed, and information such as touch pose cannot be acquired.

Non-contact touch sensors generally use ultrasound or laser as a medium to sense the approach of an object. However, under the operation environments such as spraying, the interference of the ultrasonic sensor is large, and the normal work is difficult; laser sensors are often difficult to meet explosion proof conditions. The ultrasonic or laser sensors are adopted to realize touch state analysis, a large number of sensors are needed to be combined for use, the analysis difficulty is high, and the cost is high.

One problem that exists in the above technology is how to realize the integrated perception and protection of touch feedback, buffering and touch state analysis for explosion-proof occasions such as coating.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an explosion-proof soft touch sensor, which can realize integrated sensing and protection of touch feedback, buffering and touch state analysis, and is suitable for application-oriented explosion-proof occasions.

According to the embodiment of the invention, the explosion-proof soft touch sensor comprises:

the soft membrane structure is made of flexible materials and comprises soft membrane bulges and soft membrane interfaces which are connected with each other;

the base is fixedly connected with the soft film interface, and a closed air cavity is formed between the base and the soft film bulge; a sensor is arranged on the base;

when the soft body membrane bulge is in no touch during working, the soft body membrane bulge maintains the original shape; when the soft body membrane bulge is subjected to external touch, the soft body membrane bulge deforms, so that the sensor detects the pressure change of the closed air cavity or the shape change of the inner surface of the soft body membrane bulge, and the touch sensing and the specific touch condition analysis are realized.

The explosion-proof soft touch sensor provided by the embodiment of the invention has the following advantages: first, because the structure of the soft body membrane adopts flexible material to make, make the protruding production deformation under the effect of touching power of soft body membrane, and then make the gas pressure in the closed air cavity change and make the shape of the protruding internal surface of closed soft body membrane change, and then detect the shape change that gas pressure changes and the protruding internal surface of closed soft body membrane through the sensor, for example, the sensor can be the baroceptor, realize quick touching feedback through baroceptor, the sensor still can be for visual device such as camera, can accurately assay the position and the mode of touching, separation control after can the efficient setting up touching. Secondly, because the software membrane structure adopts flexible material to make, can through rational design, to different work scenes, can select the software membrane arch that corresponds with the work scene, realize long distance, short distance and touch sensing on a large scale. And thirdly, as the soft membrane structure is made of flexible materials and the sealed air cavity is filled with positive pressure air, when the protrusion of the soft membrane is under the action of touch force, the collision danger caused by a rigid sensor can be avoided, and the soft membrane structure has a good buffering effect and good application potential in the aspect of man-machine fusion. Fourthly, because the sealed air cavity is filled with positive pressure gas, external dust gas can not enter the sealed air cavity, so that the explosion-proof soft touch sensor has an explosion-proof function, has more prominent explosion-proof performance and can be suitable for explosion-proof occasions such as coating and the like. Fifthly, the soft film is light and thin in structure, simple in structure and high in cost performance.

According to some embodiments of the invention, the base comprises a base body and a cover plate, the base body and the cover plate clamp the soft membrane interface, and the base body and the cover plate are fastened by a fastener.

According to some embodiments of the invention, the flexible material is a polymer material or silicone.

According to some embodiments of the invention, the soft body film protrusion has a shape of a revolution, a planar prism, or a protrusion structure other than the shape of the revolution and the planar prism.

According to some embodiments of the present invention, the soft body membrane protrusion can support gravity and additional acceleration by its elasticity and structure, so as to maintain the original shape without external force.

According to some embodiments of the present invention, when the soft body membrane bulge cannot support gravity and additional acceleration due to its elasticity and structure, and thus cannot maintain the original shape without external force, the base is provided with a one-way air valve, which is used for allowing external air to intelligently flow into the closed air cavity, so as to maintain the original shape of the soft body membrane bulge without external force by the pressure of the closed air cavity.

According to some embodiments of the invention, the sensor is an air pressure sensor; when the explosion-proof soft body touch sensor works, when the soft body membrane bulge is under the external touch action, the soft body membrane bulge generates deformation, and the air pressure sensor detects that the pressure of the closed air cavity changes due to the deformation of the soft body membrane bulge, so that the external touch sensing is realized.

According to some embodiments of the invention, the sensor is a camera, and the inner surface of the soft membrane bulge is provided with a specific optical characteristic; when the soft body membrane is protruded to be under the external touch action, the soft body membrane is protruded to deform, so that the specific optical characteristic deforms, and the camera detects and captures the size and the direction of the deformation of the specific optical characteristic, so that the whole touch state is sensed and analyzed.

According to some embodiments of the present invention, when the sensor is an air pressure sensor, the explosion-proof soft touch sensor further includes a sub-base, the sub-base is connected to a top of the soft membrane protrusion, the sub-base and the base are respectively used for being installed on different positions or different installation surfaces of a surface to be installed, and the soft membrane protrusion is in a bar shape and can be disposed around the rigid body.

According to some embodiments of the invention, there are a plurality of the explosion-proof soft touch sensors, and a plurality of the explosion-proof soft touch sensors are arranged in a circular, rectangular or hexagonal array.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of an explosion-proof soft touch sensor according to a first embodiment of the invention.

Fig. 2 is a cross-sectional view taken at a-a of fig. 1.

Fig. 3 is a schematic perspective view of an explosion-proof soft touch sensor according to a second embodiment of the invention.

Fig. 4 is a cross-sectional view taken at B-B of fig. 3.

Fig. 5 is a schematic perspective view of an explosion-proof soft touch sensor according to a third embodiment of the invention.

Fig. 6 is a cross-sectional view at C-C of fig. 5.

Fig. 7 is a schematic perspective view of an explosion-proof soft touch sensor according to a fourth embodiment of the invention.

Fig. 8 is a cross-sectional view taken at D-D of fig. 7.

Fig. 9 is a schematic perspective view of an explosion-proof soft touch sensor according to a fifth embodiment of the invention.

Fig. 10 is a cross-sectional view at E-E of fig. 9.

Fig. 11 is a schematic perspective view of an explosion-proof soft touch sensor according to a sixth embodiment of the invention.

Fig. 12 is a cross-sectional view at F-F of fig. 11.

Fig. 13 is a schematic perspective view of an explosion-proof soft touch sensor according to a seventh embodiment of the invention.

Fig. 14 is a cross-sectional view at G-G of fig. 13.

Fig. 15 is a schematic perspective view of an explosion-proof soft touch sensor according to an eighth embodiment of the invention.

Fig. 16 is a cross-sectional view taken at H-H of fig. 15.

Fig. 17 is a schematic perspective view of an explosion-proof soft touch sensor according to a ninth embodiment of the invention.

Fig. 18 is an axial cross-sectional view of fig. 17.

Fig. 19 is a schematic view of an application of an explosion-proof soft touch sensor according to a ninth embodiment of the invention.

Fig. 20 is a schematic view of an explosion-proof soft touch sensor array according to a tenth embodiment of the invention.

Reference numerals:

explosion-proof software touch sensor 1000

Soft body membrane structure 1

Soft body membrane bulge 101 soft body membrane interface 102 specific optical characteristics 103

Base 2

Base body 201 cover plate 202 air hole 203

Closed air cavity 3

Sensor 4

Sub-base 5

Explosion-proof soft touch sensor array 2000

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.

An explosion-proof soft touch sensor 1000 according to an embodiment of the invention is described below with reference to fig. 1 to 20.

As shown in fig. 1 to 19, an explosion-proof soft touch sensor 1000 according to an embodiment of the present invention includes a soft film structure 1 and a base 2. Wherein, the soft membrane structure 1 is made of flexible material and can be an integrated piece; the soft body membrane structure 1 comprises a soft body membrane bulge 101 and a soft body membrane interface 102 which are connected with each other; the base 2 can be used for installing the anti-explosion soft touch sensor 1000 on the surface of other objects, the base 2 is fixedly connected with the soft film interface 102, and a closed air cavity 3 is formed between the base 2 and the soft film bulge 101; the base 2 is provided with a sensor 4, and the sensor 4 can detect the pressure change in the closed air cavity 3 or can detect the shape change of the inner surface of the soft film bulge 101.

When the soft film bulge 101 is not touched during working, the soft film bulge 101 maintains the original shape, and when the soft film bulge 101 is touched externally, the soft film bulge 101 deforms, so that the sensor 4 detects the pressure change of the closed air cavity 3 or the shape change of the inner surface of the soft film bulge 101, and the touch sensing and the specific touch condition analysis are realized.

The explosion-proof soft touch sensor 1000 according to the embodiment of the invention has the following advantages: firstly, because software membrane structure 1 adopts flexible material to make for the protruding 101 of software membrane produces deformation under the effect of touch, and then make the gas pressure in the closed air cavity 3 change and make the shape of the protruding 101 of software membrane change, and then detect the shape of gas pressure change and the protruding 101 of software membrane change through sensor 4, for example, sensor 4 can be baroceptor, realize quick touch feedback through baroceptor, sensor 4 still can be for visual device such as camera, can accurately analyze the position and the mode of touching, can the efficient separation control after establishing the touching. Secondly, because the soft body membrane structure 1 adopts flexible material to make, can through reasonable design, to different work scenes, can select the soft body membrane arch 101 that corresponds with the work scene, realize long distance, short distance and touch sensing on a large scale. Thirdly, because the soft body membrane structure 1 is made of flexible materials and is filled with positive pressure gas in the closed air cavity 3, when the soft body membrane bulge 101 is under the action of touch force, the collision danger caused by the rigid sensor 4 can be avoided, and the soft body membrane structure has good buffering effect and good application potential in the aspect of man-machine fusion. Fourthly, because the enclosed air cavity 3 is filled with positive pressure gas, external dust gas can not enter the enclosed air cavity 3, so that the explosion-proof soft touch sensor 1000 has an explosion-proof function, the explosion-proof performance is more prominent, and the explosion-proof soft touch sensor can be suitable for explosion-proof occasions such as coating. Fifthly, the soft body film structure 1 is light and thin, simple in structure and high in cost performance.

In a word, the explosion-proof soft touch sensor 1000 according to the embodiment of the present invention can realize integrated sensing and protection of touch feedback, buffering, and touch state analysis, and is suitable for explosion-proof occasions such as coating.

According to some embodiments of the present invention, the base 2 includes a base body 201 and a cover plate 202, the base body 201 and the cover plate 202 clamp the soft body film interface 102, the base body 201 and the cover plate 202 are fastened by a fastener (e.g., a bolt); in this way, assembly and replacement of the soft body film structure 1 is facilitated.

According to some embodiments of the present invention, the flexible material is a polymer material or a silicone, wherein the polymer material may be gel, rubber, polyethylene, polypropylene, polyvinyl chloride, or the like. The choice of flexible material can be selected according to the actual need.

According to some embodiments of the present invention, the soft body membrane protrusions 101 are in the shape of a revolution, a plane prism, or a protrusion structure other than a revolution and a plane prism. It is understood that the shape of the soft membrane protrusion 101 can be selected according to different working scenarios.

Referring to fig. 5 and 6, fig. 7 and 8, fig. 13 and 14, etc., according to some embodiments of the present invention, the soft membrane protrusions 101 can support gravity and additional acceleration by their own elasticity and structure, so as to maintain their original shape without external force. It can be understood that, when the thickness of the soft film protrusion 101 is larger, the soft film protrusion 101 itself can support gravity and additional acceleration (the additional acceleration can be understood as the acceleration of the explosion-proof soft touch sensor 1000 in the motion state), the air hole 203 does not need to be arranged on the base 2, and the original shape of the soft film protrusion 101 is maintained without external force through its own elasticity and structure.

Referring to fig. 1 and 2, fig. 3 and 4, fig. 9 and 10, fig. 11 and 12, etc., according to some embodiments of the present invention, when the soft film protrusion 101 cannot support gravity and additional acceleration (the additional acceleration here can be understood as the acceleration of the explosion-proof soft touch sensor 1000 in a motion state) by its elasticity and structure, and thus cannot maintain the original shape without external force, a one-way air valve (not shown) is disposed on the base 2, and the one-way air valve is used for intelligently flowing external air into the closed air cavity 3, so as to maintain the original shape of the soft film protrusion 101 without external force by the pressure of the closed air cavity 3. It can be understood that, when the thickness of the soft body film bulge 101 is smaller and softer (that is, the elastic modulus is smaller), the base 2 is provided with the air hole 203, the air hole 203 can be internally provided with the one-way air valve, the one-way air valve can be connected with an external constant-pressure air source, and compressed air in the constant-pressure air source can intelligently flow into the closed air cavity 3 through the one-way air valve, so that the original shape of the soft body film bulge 101 without external force can be maintained through the pressure of the closed air cavity 3.

Referring to fig. 1, 3, 5, 7, 17 and 18, 19, etc., in accordance with some embodiments of the present invention, the sensor 4 is an air pressure sensor; when the explosion-proof soft touch sensor 1000 works, when the soft film protrusions 101 are subjected to external touch, the soft film protrusions 101 deform, and the pressure sensor detects that the pressure of the closed air cavity 3 changes due to the deformation of the soft film protrusions 101, so that external touch is sensed. It can be understood that, when the soft film protrusions 101 are touched by the outside, the soft film protrusions 101 deform, so that the volume of the closed air cavity 3 changes, and the pressure in the closed air cavity 3 changes, and the pressure sensor senses the touch state by reading the pressure change.

Referring to fig. 10, 12, 14, 16, etc., according to some embodiments of the present invention, the sensor 4 is a camera with a specific optical feature 103 fabricated on the inner surface of the soft membrane protrusion 101; when the soft film protrusions 101 are touched by the outside, the soft film protrusions 101 deform, so that the specific optical features 103 deform, and the camera detects and captures the size and direction of the deformation of the specific optical features 103, so that the whole touch state is sensed and analyzed. Specifically, the specific optical features 103 made on the inner surface of the soft film protrusion 101 may be linear stripes or annular stripes, and when the soft film protrusion 101 is deformed by a touch force during operation, the linear stripes or the annular stripes are deformed, and the camera senses and analyzes the entire touch state by detecting and capturing the magnitude and direction of the deformation of the linear stripes or the annular stripes. It should be noted that the form of the specific optical feature 103 is not limited to a linear stripe, a circular stripe, or a superimposed stripe of the two, and other forms advantageous for visual detection may be adopted.

Referring to fig. 17 to 19, according to some embodiments of the present invention, when the sensor 4 is an air pressure sensor, the explosion-proof soft touch sensor 1000 further includes a sub-base 5, the sub-base 5 is connected to the top of the soft membrane protrusion 101, the sub-base 5 and the base 2 are respectively configured to be mounted on different positions or different mounting surfaces of a surface to be mounted, and the soft membrane protrusion 101 is in a strip shape and can be disposed around a rigid body, so as to implement touch sensing in a larger angle range.

According to some embodiments of the present invention, there are a plurality of the explosion-proof soft touch sensors 1000, and the plurality of the explosion-proof soft touch sensors 1000 are used for the explosion-proof soft touch sensor array 2000 arranged in a ring shape, a rectangular shape (refer to fig. 20) or a hexagonal shape, thereby achieving touch sensing of a larger plane.

In the explosion-proof soft touch sensor array 2000, the closed air cavities 3 of the multiple explosion-proof soft touch sensors 1000 may be sequentially connected in series, and the multiple closed air cavities 3 share one external air source and one sensor 4.

The explosion-proof soft touch sensor 1000 of the present invention will be described in several specific embodiments.

Example one

As shown in fig. 1 and fig. 2, the explosion-proof soft touch sensor 1000 includes a soft membrane structure 1 and a base 2, the soft membrane structure 1 is made of a flexible material, the soft membrane structure 1 includes a soft membrane protrusion 101 and a soft membrane interface 102 connected to each other, wherein the soft membrane protrusion 101 is a blunt conical thin film, and the soft membrane interface 102 is an annular disc with equal thickness; the soft body membrane interface 102 is fixedly connected with the base 2, a closed air cavity 3 is formed between the soft body membrane bulge 101 and the base 2, the whole appearance of the base 2 is similar to a cylinder shape, the base 2 is composed of a base body 201, a base 2 cover plate 202 and an air pressure sensor, a narrow air vent 203 for supplying air to an external air source and an air passage communicated with the air pressure sensor are arranged on the side surface of the base body 201, and a lead of the air pressure sensor can also be arranged in an air source pipeline.

When the device works, the air source inflates the closed air cavity 3 through the one-way air valve and the narrow vent hole 203, the blunt-end conical film expands, and the original shape is maintained after the preset pressure is reached; when the soft film protrusions 101 deform under the action of touch force, the volume and the internal pressure of the closed air cavity 3 change simultaneously, and the change of the pressure is detected by the air pressure sensor, so that the touch state is sensed.

Example two

The structure and the operation principle of the explosion-proof soft touch sensor 1000 shown in fig. 3 and 4 are basically the same as those of the first embodiment, except that the shape of the soft membrane protrusion 101 is a hemispherical shell-shaped thin membrane.

EXAMPLE III

As shown in fig. 5 and 6, the explosion-proof soft body touch sensor 1000 comprises a soft body membrane structure 1 and a base 2, wherein the soft body membrane structure 1 is made of a flexible material, the soft body membrane structure 1 comprises a soft body membrane bulge 101 and a soft body membrane interface 102 which are connected, wherein the shape of the soft body membrane bulge 101 is a blunt conical thick membrane, and the soft body membrane interface 102 is an annular disc with equal thickness; the soft body membrane interface 102 is fixedly connected with the base 2, a closed air cavity 3 is formed between the soft body membrane bulge 101 and the base 2, the whole appearance of the base 2 is similar to a cylinder shape, the base 2 is composed of a base body 201, a base 2 cover plate 202 and an air pressure sensor, and the side surface of the base body 201 is provided with an air passage communicated with the air pressure sensor.

When the thick film works, the blunt conical thick film maintains the original shape through the self structure and the elasticity of the material; when the soft body film bulge 101 deforms under the action of touch force, the volume and the internal pressure of the closed air cavity 3 are changed simultaneously, and the change of the pressure is detected through the air pressure sensor, so that the touch state is sensed.

Example four

As shown in fig. 7 and 8, the structure and the operation principle of the explosion-proof soft touch sensor 1000 are basically the same as those of the third embodiment, except that the soft film protrusion 101 is a hemispherical shell-shaped thick film.

EXAMPLE five

As shown in fig. 9 and 10, the explosion-proof soft touch sensor 1000 includes a soft film structure 1 and a base 2, the soft film structure 1 is made of a flexible material, the soft film structure 1 includes a soft film protrusion 101 and a soft film interface 102, which are connected, wherein the soft film protrusion 101 is a blunt conical thick film, the inner surface of the soft film protrusion 101 is coated with linear stripes, and the soft film interface 102 is an annular disc with an equal thickness; the soft body membrane interface 102 is fixedly connected with the base 2, a closed air cavity 3 is formed between the soft body membrane bulge 101 and the base 2, the whole appearance of the base 2 is similar to a cylinder shape, the base 2 comprises a base body 201 and a base 2 cover plate 202, and the base 2 is provided with an air pressure sensor and a camera.

When the device works, the soft film bulge 101 maintains the original shape through the self structure and the elasticity of the material; when the soft film bulge 101 is deformed under the action of external force, the volume and the internal pressure of the closed air cavity 3 are simultaneously changed and simultaneously deformed, and on the basis that the air pressure sensor identifies the occurrence of touch, the camera detects the position and the direction of touch of the soft film of the sensor 4 by reading the deformation, so that the touch can be comprehensively sensed.

EXAMPLE six

As shown in fig. 11 and 12, the explosion-proof soft touch sensor 1000 includes a soft film structure 1 and a base 2, the soft film structure 1 is made of a flexible material, the soft film structure 1 includes a soft film protrusion 101 and a soft film interface 102, which are connected, wherein the soft film protrusion 101 is a hemispherical shell-shaped thin film, the inner surface of the soft film protrusion 101 is coated with annular stripes, and the soft film interface 102 is an equal-thickness disc; the soft body membrane interface 102 is fixedly connected with the base 2, a closed air cavity 3 is formed between the soft body membrane bulge 101 and the base 2, the whole appearance of the base 2 is similar to a cylinder shape, the base 2 comprises a base body 201 and a base 2 cover plate 202, an air hole 203 for supplying air to an external air source is formed in the side surface of the base body 201, and the camera is installed on the base 2.

When the device works, an external air source inflates the closed air cavity 3 through the air hole 203, and when the device inflates, the hemispherical shell-shaped film expands to achieve the preset pressure and then the original shape is maintained; when the hemispherical shell-shaped film is deformed under the action of external force, the annular stripes are deformed, and the camera analyzes the position and the direction of touch on the bulge 101 of the soft film through photographing, so that the touch can be comprehensively sensed.

EXAMPLE seven

As shown in fig. 13 and 14, the explosion-proof soft touch sensor 1000 includes a soft film structure 1 and a base 2, the soft film structure 1 is made of a flexible material, the soft film structure 1 includes a soft film protrusion 101 and a soft film interface 102, which are connected, wherein the shape of the soft film protrusion 101 is a blunt conical thick film, the inner surface of the soft film protrusion 101 is coated with linear stripes, and the soft film interface 102 is an annular disc with an equal thickness; the soft body membrane is fixedly connected with the base 2, a closed air cavity 3 is formed between the soft body membrane bulge 101 and the base 2, the whole appearance of the base 2 is similar to a cylinder shape, the base 2 is composed of a base body 201 and a base 2 cover plate 202, and the like, and an air pressure sensor and a camera are installed at the bottom of the base 2.

When the device works, the soft film bulge 101 maintains the shape through the self structure and the elasticity of the material; when the soft film protrusions 101 deform under the touch effect, the linear stripes deform, and the camera detects the magnitude and direction of the external force applied to the soft film protrusions 101 of the sensor 4 by reading the deformation, so that the whole sensor 4 is sensed.

Example eight

As shown in fig. 15 and 16, the explosion-proof soft touch sensor 1000 includes a soft film structure 1 and a base 2, the soft film structure 1 is made of a flexible material, the soft film structure 1 includes a soft film protrusion 101 and a soft film interface 102, which are connected, wherein the soft film protrusion 101 is a hemispherical shell-shaped thick film, the inner surface of the soft film protrusion 101 is coated with annular stripes, and the soft film interface 102 is an equal-thickness disc; the soft body membrane interface 102 is fixedly connected with the base 2, a closed air cavity 3 is formed between the soft body membrane bulge 101 and the base 2, the whole appearance of the base 2 is similar to a cylinder shape, the base 2 is composed of a base body 201 and a base 2 cover plate 202, an air hole 203 for supplying air from an external air source is formed in the side surface of the base body 201, and an air pressure sensor and a camera are installed at the bottom of the base 2.

When the device works, the soft film bulge 101 maintains the original shape through the self structure and the elasticity of the material; when the soft film protrusions 101 deform under the touch effect, the annular stripes deform, and the camera detects the magnitude and direction of the external force applied to the soft film protrusions 101 of the sensor 4 by reading the deformation, so that the whole sensor 4 is sensed by the external force.

Example nine

As shown in fig. 17 and 18, the explosion-proof soft body touch sensor 1000 includes a soft body membrane structure 1 and a base 2, the soft body membrane structure 1 is made of a flexible material, the soft body membrane structure 1 includes a soft body membrane protrusion 101 and a soft body membrane interface 102 connected to each other, wherein the shape of the soft body membrane protrusion 101 is a cylindrical thin film, and the shape of the soft body membrane interface 102 is an annular disc with an equal thickness; the soft body film knot is connected with base 2 firmly, forms closed air cavity 3 between the protruding 101 of soft body film and the base 2, and the other end of the protruding 101 of soft body film links firmly with sub-base 5 through bonding, and base 2's whole appearance is similar to the cylindric, and base 2 comprises base body 201 and base 2 apron 202 etc. base body 201 side is provided with the gas pocket 203 that supplies the air feed of outside air supply, and air pressure sensor is installed to base 2.

As shown in fig. 19, when the touch sensor is installed, the base 2 and the sub-base 5 are respectively installed on different positions of a surface to be installed or different installation surfaces, and the soft film protrusions 101 are connected between the main base 2 and the sub-base 5, so that touch sensing in a large range is realized.

When the inflatable air bag works, an external air source inflates the closed air cavity 3 through the narrow vent hole 203, and when the inflatable air bag is inflated, the soft film bulge 101 expands and the original shape is maintained; when the soft film bulge 101 is deformed under the action of external force, the internal pressure of the closed air cavity 3 is changed, and the pressure sensor communicated with the air passage detects the change of the pressure, so that the whole sensor 4 is sensed.

Example ten

Fig. 20 shows an explosion-proof soft touch sensor array 2000, wherein the soft touch sensor 4 array is a rectangular array formed by a plurality of explosion-proof soft touch sensors 1000, and can be covered on different planes. That is, the explosion-proof soft touch sensors 1000 are arranged in a rectangular array, so that touch sensing in a larger plane can be realized.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.