CN216593926U - Film pressure sensor and anticollision institution - Google Patents
Film pressure sensor and anticollision institution Download PDFInfo
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- CN216593926U CN216593926U CN202122634540.3U CN202122634540U CN216593926U CN 216593926 U CN216593926 U CN 216593926U CN 202122634540 U CN202122634540 U CN 202122634540U CN 216593926 U CN216593926 U CN 216593926U
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Abstract
The application provides a film pressure sensor and anticollision institution, film pressure sensor includes: the pressure-sensitive film comprises a pressure-sensitive film piece, a first electrode layer, a second electrode layer, a first base layer, a second base layer and a first connecting terminal, wherein the pressure-sensitive film piece is configured to change electrical characteristics when external pressure is received, the first electrode layer is arranged on the first surface of the pressure-sensitive film piece, the second electrode layer is arranged on the second surface of the pressure-sensitive film piece, the first base layer is arranged on one side, away from the pressure-sensitive film piece, of the first electrode layer, the second base layer is arranged on one side, away from the pressure-sensitive film piece, of the second electrode layer, the first connecting terminal is provided with a first connecting portion and a second connecting portion, the first connecting portion is connected with the first electrode layer and the second electrode layer, the second connecting portion is used for being connected with an external control element, and the pressure-sensitive film piece, the first electrode layer, the second electrode layer, the first base layer and the second base layer are all flexible pieces.
Description
Technical Field
The application relates to the field of safety protection equipment, in particular to a film pressure sensor and an anti-collision mechanism.
Background
The pressure sensor is a sensor which is very commonly applied and is applied to various occasions and different fields. However, the pressure sensor in the current market is generally made of a metal structure, has a relatively large volume and hard texture, and has certain limitations.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the application is to enable the pressure sensor to be bendable and reduce the thickness of the pressure sensor.
The embodiment of the application provides a film pressure sensor, includes:
a pressure sensitive membrane configured to change an electrical characteristic upon receipt of an external pressure;
the first electrode layer comprises a plurality of first electrode assemblies arranged on the first surface of the pressure-sensitive film piece along a first direction array and first leads electrically connected with the first electrode assemblies;
the second electrode layer comprises a plurality of second electrode assemblies arranged on the second surface of the pressure-sensitive film piece along a second direction in an array mode, and second leads electrically connected with the second electrode assemblies, and an included angle is formed between the first direction and the second direction;
the first base layer is arranged on one side, far away from the pressure-sensitive film piece, of the first electrode layer;
the second base layer is arranged on one side, far away from the pressure-sensitive film piece, of the second electrode layer;
the first connecting terminal is provided with a first connecting part and a second connecting part, the first connecting part is electrically connected with the first lead and the second lead, and the second connecting part is used for being connected with an external control element;
the pressure-sensitive thin film piece, the first electrode layer, the second electrode layer, the first base layer and the second base layer are all flexible pieces.
In some embodiments, the first base layer includes a first carrier region disposed corresponding to each of the first electrode assemblies of the first electrode layer, and a first wiring region disposed on a circumferential side of the first carrier region;
the second base layer comprises a second bearing area and a second wiring area, the second bearing area is arranged corresponding to each second electrode assembly of the second electrode layer, the second wiring area is arranged on the peripheral side of the second bearing area, and the second wiring area is arranged corresponding to the first wiring area;
the first wires are arranged in the first wiring area, and the second wires are arranged in the second wiring area.
In some embodiments, the membrane pressure sensor further comprises:
the second connecting terminal is provided with a third connecting part and a fourth connecting part;
the third wire is arranged in the first wiring area corresponding to the first wire, one end of the third wire is electrically connected with the first connecting part, and the other end of the third wire is electrically connected with the third connecting part;
the fourth wire is arranged in the second wiring area corresponding to the second wire, one end of the fourth wire is electrically connected with the corresponding second wire, and the other end of the fourth wire is electrically connected with the third connecting part;
wherein the fourth connection portion is configured to fit with the second connection portion.
In some embodiments, one end of the fourth wire is electrically connected to the second wire through the second electrode assembly, and the other end of the fourth wire is electrically connected to the third connection part.
In some embodiments, the first electrode assembly includes a first sensing part, and a first sensing connection part electrically connected to the first sensing part, and the first conductive wire is electrically connected to the first sensing part through the first sensing connection part;
the second electrode assembly comprises a second sensing part and a second sensing connecting part electrically connected with the second sensing part, and the second lead is electrically connected with the second sensing part through the second sensing connecting part;
the first sensing parts of the first electrode assemblies and the second sensing parts of the second electrode assemblies are correspondingly arranged.
In some embodiments, the first sensing part includes a plurality of first electrode elements arranged in parallel to the first direction at intervals, the first sensing connection part is a plurality of first connection elements arranged perpendicular to the first direction at intervals, and the first electrode elements are electrically connected with the first wires through the first connection elements;
the second induction part comprises a plurality of second electrode pieces which are parallel to the second direction and are arranged at intervals, the second induction connecting parts are a plurality of second connecting pieces which are perpendicular to the second direction and are arranged at intervals, and the second electrode pieces are electrically connected with the second wires through the second connecting pieces.
In some embodiments, the membrane pressure sensor further comprises:
and the positioning holes penetrate through the film pressure sensor, wherein each positioning hole is used for fixedly connecting the film pressure sensor with an external connecting piece.
In some embodiments, the first base layer and the second base layer are any one of an FPC board or a PET board.
In some embodiments, the pressure sensitive film member is an electrically resistive pressure sensitive film member.
The embodiment of the application further provides an anticollision institution for the laminating wall uses, include:
a protective pad comprising a multi-layer flexible buffer;
the pressure sensing assembly comprises film pressure sensors which are arranged on the first surface of the flexible buffer in an array manner;
the analysis module is electrically connected with the pressure sensing assembly;
the warning module is electrically connected with the analysis module;
wherein, the film pressure sensor is described in any embodiment of the present specification.
The application provides a film pressure sensor, when pressure-sensitive film spare received external force extrusion, the inside evenly distributed's of film conductive particle was extruded in the atress direction, and under the unchangeable condition of conductive particle quantity, the space reduces, and density increases, causes extrusion position resistance to diminish. At this time, the voltage or current of the electrode assembly at the pressing portion corresponding to the first electrode layer and the second electrode layer disposed on both sides of the pressure-sensitive film member is changed accordingly, thereby recognizing that the film pressure sensor is pressed. The film pressure sensor that this application provided, simple structure consequently compares with traditional pressure sensor, greatly reduced pressure sensor's thickness, in addition, constitute the pressure-sensitive film spare, first electrode layer, second electrode layer, first basic unit and the second basic unit of film pressure sensor that this application provided and be the flexible piece, consequently, when receiving askew external force extrusion, pressure sensor can buckle, and the texture is softer.
The utility model provides an anticollision institution sets up the forced induction subassembly in the protection pad, and when the protection pad received the striking, the electrical characteristic of the film pressure sensor in the forced induction subassembly changed to give analysis module with the signal of telecommunication and carry out the analysis, analysis module warns according to analysis result control warning module and reminds.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1A is a schematic view of a layered structure of a thin film pressure sensor provided in an embodiment of the present application;
fig. 1B is a schematic structural diagram of a first electrode layer and a first base layer of a thin film pressure sensor provided in an embodiment of the present disclosure;
fig. 1C is a schematic structural diagram of a second electrode layer and a second base layer of the thin film pressure sensor provided in the embodiment of the present application;
FIG. 2A is a schematic view of a layered structure of another modified structure of the thin film pressure sensor;
FIG. 2B is a schematic diagram of a structure of the thin film pressure sensor of FIG. 2A in which a first electrode layer is mated with a first base layer;
FIG. 2C is a schematic diagram of the structure of the thin film pressure sensor of FIG. 2A in which the second electrode layer is mated with the second substrate layer;
FIG. 2D is a partial schematic view of the area A in FIG. 2A;
FIG. 3A is a schematic view of a layered structure of yet another alternative structure of the thin film pressure sensor;
FIG. 3B is a schematic diagram of a structure of the thin film pressure sensor of FIG. 3A in which a first electrode layer is mated with a first base layer;
FIG. 3C is a schematic diagram of the structure of the thin film pressure sensor of FIG. 3A in which the second electrode layer is mated with the second substrate layer;
FIG. 3D is a schematic diagram of the thin film pressure sensor of FIG. 3A with positioning holes;
fig. 4 is a schematic perspective view of a collision avoidance mechanism according to an embodiment of the present application;
reference numerals: 1. a thin film pressure sensor; 11. a pressure-sensitive film member; 12. a first electrode layer; 121. a first electrode assembly; 1211. a first sensing part; 1212. a first inductive connecting part; 122. a first conductive line; 123. a third conductive line; 13. a second electrode layer; 131. a second electrode assembly; 1311. a second sensing part; 1312. a second inductive connection; 132. a second conductive line; 133. a fourth conductive line; 14. a first base layer; 141. a first bearing area; 142. a first wiring region; 15. a second base layer; 151. a second bearing area; 152. a second wiring region; 16. a first connection terminal; 161. a first connection portion; 162. a second connecting portion; 17. a second connection terminal; 171. a third connecting portion; 172. a fourth connecting portion; 18. positioning holes; 2. an anti-collision mechanism; 21. a protective pad; 22. a pressure sensing assembly; 23. an analysis module; 24. and a warning module.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the following, some embodiments of the present application will be described in detail with reference to the drawings, and features in the following examples and examples may be combined with each other without conflict.
Referring to fig. 1A to fig. 1C, the present application provides a film pressure sensor 1, in which the film pressure sensor 1 includes a pressure-sensitive film 11, a first electrode layer 12, a second electrode layer 13, a first base layer 14, a second base layer 15, and a first connection terminal 16. The pressure-sensitive film element 11, the first electrode layer 12, the second electrode layer 13, the first base layer 14 and the second base layer 15 are all flexible elements, that is, the pressure-sensitive film element 11 is a flexible pressure-sensitive film element, the first electrode layer 12 and the second electrode layer 13 are flexible electrode layers, and the first base layer 14 and the second base layer 15 are flexible base layers.
The first electrode layer 12 is disposed on the first surface of the pressure-sensitive film 11, and the first base layer 14 is disposed on a side of the first electrode layer 12 away from the pressure-sensitive film 11. The second electrode layer 13 is disposed on the second surface of the pressure-sensitive film member 11, and the second base layer 15 is disposed on a side of the second electrode layer 13 away from the pressure-sensitive film member 11. The first terminal is fixedly arranged on one side of the film pressure sensor 1 and is electrically connected with the first electrode layer 12 and the second electrode layer 13 respectively.
Specifically, the pressure-sensitive film member 11 is configured such that the electrical characteristic changes when external pressure is received, and the pressure-sensitive film member 11 is a resistive pressure-sensitive film member 11. In some embodiments, the pressure-sensitive film member 11 is a plastic substrate doped with conductive particles, for example, the plastic substrate may be PE, PC, TPU, or the like, and the conductive particles may be conductive carbon powder.
The first electrode layer 12 includes a plurality of first electrode assemblies 121 arranged in an array along a first direction on the first surface of the pressure-sensitive film member 11, and first wires 122 electrically connected to the respective first electrode assemblies 121. The second electrode layer 13 includes a plurality of second electrode assemblies 131 arranged in an array along a second direction on the second surface of the pressure-sensitive film member 11, and a second conductive line 132 electrically connected to the second electrode assemblies 131, wherein the first direction and the second direction are arranged at an angle. In some embodiments, the angle between the first direction and the second direction is 90 degrees.
The first electrode assembly 121 and the second electrode assembly 131 have an overlapping region in a direction perpendicular to the first surface and the second surface of the pressure-sensitive film member 11, and it can be understood that the pressure-sensitive film member 11 between the first electrode assembly 121 and the second electrode assembly 131 corresponds to a resistor.
For example, in the case where the input current is fixed, if the pressure-sensitive film member 11 is not pressed by an external force, the voltage between the first electrode assembly 121 and the second electrode assembly 131 is a first voltage; when the pressure-sensitive film member 11 is pressed by an external force, the conductive particles of the pressure-sensitive film member 11 corresponding to the pressed portion are pressed in the force-receiving direction, the density of the conductive particles is increased, and the resistance between the pressed portions is decreased, and at this time, the voltage between the first electrode assembly 121 and the second electrode assembly 131 corresponding to the pressed portion is a second voltage, which is smaller than the first voltage.
For example, in the case where the input voltage is fixed, if the pressure-sensitive film member 11 is not pressed by an external force, the current between the first electrode assembly 121 and the second electrode assembly 131 is a first current; when the pressure-sensitive film member 11 is pressed by an external force, the conductive particles of the pressure-sensitive film member 11 corresponding to the pressed portion are pressed in the force-receiving direction, the density of the conductive particles is increased, and the resistance between the pressed portions is decreased, and at this time, the current between the first electrode assembly 121 and the second electrode assembly 131 corresponding to the pressed portion is the second current, and it can be understood that the second current is larger than the first current.
In some embodiments, as shown in fig. 1B and 1C, the first electrode assembly 121 includes a first sensing portion 1211 and a first sensing connection portion 1212 electrically connected to the first sensing portion 1211, and the first conductive line 122 is electrically connected to the first sensing portion 1211 through the first sensing connection portion 1212; the second electrode assembly 131 includes a second sensing portion 1311 and a second sensing connection portion 1312 electrically connected to the second sensing portion 1311, and the second conductive line 132 is electrically connected to the second sensing portion 1311 through the second sensing connection portion 1312; the first sensing portions 1211 of the first electrode assemblies 121 and the second sensing portions 1311 of the second electrode assemblies 131 are arranged correspondingly.
Specifically, each of the first sensing portions 1211 in the first electrode layer 12 and the second sensing portion 1311 in the second electrode layer 13 is disposed in a direction perpendicular to the first surface and the second surface of the pressure-sensitive film member 11. In the first direction, the adjacent first sensing portions 1211 are electrically connected through the first sensing connection portion 1212, and the first conductive line 122 is electrically connected to each of the first sensing portions 1211 through the first sensing connection portion 1212. Correspondingly, in the second direction, the adjacent second sensing portions 1311 are electrically connected through the second sensing connection portions 1312, and the second conductive line 132 is electrically connected to each of the first sensing portions 1211 through the second sensing connection portions 1312. In fig. 1A to 1C, the first sensing portion 1211 and the second sensing portion 1311 are configured to be rectangular, and in some embodiments, the first sensing portion 1211 and the second sensing portion 1311 may also be configured to be other shapes matching with each other, such as a circle, a pentagon, a hexagon, and the like.
In some embodiments, only one first wire 122 in the first electrode layer 12 is provided, and is electrically connected to each first electrode assembly 121 in the first electrode layer 12. Correspondingly, only one second lead 132 in the second electrode layer 13 is provided, and is electrically connected to each second electrode assembly 131 in the second electrode layer 13. By this embodiment, the thin film pressure sensor 1 provided by the present application can also detect external pressure in the sensing regions corresponding to the first electrode assembly 121 and the second electrode assembly 131, but cannot accurately locate the position where the pressure is applied.
Further, as shown in fig. 1B and 1C, the number of the first conductive wires 122 is set corresponding to the number of rows of the first electrode assembly 121, and the number of the second conductive wires 132 is set corresponding to the number of columns of the second electrode assembly 131. With this embodiment, when the sensing regions corresponding to the first electrode assembly 121 and the second electrode assembly 131 are pressed by external pressure, the electrical signals output by the first conducting wire 122 and the second conducting wire 132 corresponding to the pressing positions are changed, and the pressing positions of the film pressure sensor 1 can be determined according to the sequence of the first conducting wire 122 and the second conducting wire 132 where the electrical signals are changed.
The first base layer 14 is disposed on a side of the first electrode layer 12 away from the pressure-sensitive film 11, and is used for fixing a relative position between the first electrode layer 12 and the pressure-sensitive film 11, and meanwhile, protecting the first electrode layer 12 and the pressure-sensitive film 11. The second base layer 15 is disposed on a side of the second electrode layer 13 away from the pressure-sensitive film 11, and is used for fixing a relative position between the second electrode layer 13 and the pressure-sensitive film 11, and meanwhile, protecting the second electrode layer 13 and the pressure-sensitive film 11. In some embodiments, the first base layer 14 and the second base layer 15 are made of any one of FPC boards or PET boards, and the first electrode layer 12 and the second electrode layer 13 are made of corresponding materials. For example, when the first base layer 14 and the second base layer 15 are both FPC boards, each of the first electrode assemblies 121 of the first electrode layer 12 and each of the second electrode assemblies 131 of the second electrode layer 13 may be screen-printed on the corresponding FPC boards by using conductive silver paste.
In some embodiments, the first base layer 14 includes a first carrier region 141 disposed corresponding to each of the first electrode assemblies 121 of the first electrode layer 12, and a first wiring region 142 disposed on a peripheral side of the first carrier region 141, and the first conductive line 122 is disposed on the first wiring region 142. The second base layer 15 includes a second carrier region 151 disposed corresponding to each of the second electrode assemblies 131 of the second electrode layer 13, and a second wiring region 152 disposed around the second carrier region 151, and the second conductive lines 132 are disposed in the second wiring region 152. The second wiring region 152 is disposed corresponding to the first wiring region 142, and the second loading region 151 is disposed corresponding to the first loading region 141.
In some embodiments, the thin film pressure sensor 1 provided herein can bond the pressure-sensitive thin film member 11, the first electrode layer 12, the second electrode layer 13, the first base layer 14 and the second base layer 15 together by using a double-sided tape, glue, or a dispenser.
The first terminal is fixedly disposed on one side of the thin film pressure sensor 1, and is provided with a first connection portion 161 and a second connection portion 162, wherein the first connection portion 161 is electrically connected to the first conductive line 122 and the second conductive line 132, and the second connection portion 162 is used for connecting to an external control element.
Referring to fig. 2A to 2D, in some embodiments, the first sensing portion 1211 includes a plurality of first electrode elements parallel to the first direction and spaced apart from each other, the first sensing connecting portion 1212 is a plurality of first connecting elements perpendicular to the first direction and spaced apart from each other, and the first electrode elements are electrically connected to the first wires 122 through the first connecting elements; the second sensing portion 1311 includes a plurality of second electrode elements arranged in parallel to the second direction at intervals, the second sensing connection portion 1312 is a plurality of second connection members arranged perpendicular to the second direction at intervals, and the second electrode elements are electrically connected to the second conductive wires 132 through the second connection members. In this embodiment, the first sensing portion 1211 and the second sensing portion 1311 are arranged in a grid pattern, so that the material cost of the first electrode layer 12 and the second electrode layer 13 can be reduced.
Further, the film pressure sensor 1 further includes a plurality of positioning holes 18, wherein each positioning hole 18 sequentially penetrates through the first base layer 14, the first electrode layer 12, the pressure-sensitive film 11, the second electrode layer 13, and the second base layer 15 of the film pressure sensor 1, and the positioning holes 18 are used for the film pressure sensor 1 to be fixedly connected with the outside in a matching manner.
Referring to fig. 3A to 3D, in some embodiments, the film pressure sensor 1 further includes a second connection terminal 17, a third conductive line 123 and a fourth conductive line 133. The second connection terminal 17 is provided with a third connection portion 171 and a fourth connection portion 172, the third wire 123 is disposed in the first wiring region 142 corresponding to the first wire 122, one end of the third wire 123 is electrically connected to the first connection portion 161, and the other end of the third wire 123 is electrically connected to the third connection portion 171. The fourth conductive lines 133 are disposed in the second wiring regions 152 corresponding to the second conductive lines 132, one ends of the fourth conductive lines 133 are electrically connected to the corresponding second conductive lines 132, the other ends of the fourth conductive lines 133 are electrically connected to the third connection portions 171, and the fourth connection portions 172 are configured to be matched with the second connection portions 162.
Through setting up second binding post 17 for film pressure sensor 1, can realize the concatenation to two film pressure sensor 1, be connected with the first wire 122 and the second wire 132 that correspond by the film pressure sensor 1 that are spliced respectively through third wire 123 and fourth wire 133, can enlarge the pressure monitoring scope. In addition, when the two spliced film pressure sensors 1 are subjected to external pressure, the area where the external pressure is applied can be identified and located.
In addition, in the present embodiment, only the layout scenario of the third conductive line 123 and the fourth conductive line 133 that can be spliced with each other between the two thin film pressure sensors 1 is shown. In the using process, when more film pressure sensors 1 need to be spliced, the number and arrangement of the third conducting wires 123 and the fourth conducting wires 133 are correspondingly adjusted, and then the splicing of a plurality of film pressure sensors can be realized.
For example, it is assumed that the first electrode assemblies 121 of the film pressure sensor 1 are arranged in 4 rows, the second electrode assemblies 131 are arranged in 8 columns, and the splicing manner is also the up-down splicing manner as shown in fig. 3A to 3D. Assuming that 3 thin film pressure sensors 1 need to be spliced together, 8 third wires 123 and 8 fourth wires 133 need to be arranged in the first thin film pressure sensor 1, 4 third wires 123 and 8 fourth wires 133 need to be arranged in the second thin film pressure sensor 1, and the third wire 123 and the fourth wire 133 do not need to be arranged in the third thin film pressure sensor 1. The film pressure sensors 1 which are spliced with each other transmit electric signals layer by layer through the third lead 123 and the fourth lead 133, and by analogy, the corresponding pressure monitoring function can be realized after the film pressure sensors are spliced, and the positions of the pressure sensors can be located.
In some embodiments, the fourth conductive wire 133 may be electrically connected to the second conductive wire 132 through the corresponding second electrode assembly 131. Specifically, one end of the fourth wire 133 is electrically connected to the second electrode assembly 131 to be electrically connected to the second wire 132 through the second electrode assembly 131 electrically connected thereto, and the other end of the fourth wire 133 is electrically connected to the third connection part 171. In this way, the routing of the fourth wire 133 can be achieved more flexibly and simply.
The film pressure sensor 1 provided by the present application can also be cut appropriately according to the needs of the situation, so as to adapt to the range area that needs to be subjected to pressure monitoring, and after cutting, as long as the remaining portion still has the first electrode assembly 121 and the second electrode assembly 131 that are overlapped with each other, and the first electrode assembly 121 and the second electrode assembly 131 can still be electrically connected with the corresponding terminal through the conducting wire, the remaining portion of the film pressure sensor 1 can still realize the pressure monitoring function.
Referring to fig. 4, the present application further provides an anti-collision mechanism 2 for being attached to a wall surface, including: the protection pad 21, the pressure sensing component 22, the analysis module 23 and the warning module 24. The protection pad 21 comprises a multi-layer flexible buffer member, the pressure sensing assembly 22 comprises thin film pressure sensors 1 arranged on the first surface of the flexible buffer member in an array manner, the analysis module 23 is electrically connected with the pressure sensing assembly 22, the warning module 24 is electrically connected with the analysis module 23, and the thin film pressure sensors 1 are as described above.
Specifically, flexible bolster can be for the cotton board of bubble, plays the cushioning effect, and forced induction subassembly 22 sets up between the flexible bolster, can be single film pressure sensor 1, also can be for obtaining by the concatenation of a plurality of film pressure sensor 1 through respective first binding post 16 and second binding post 17. The analysis module 23 may be a single chip microcomputer electrically connected to the pressure sensing assembly 22, and is configured to receive the electrical signal transmitted by the pressure sensing assembly 22 and analyze the electrical signal to identify a pressure value and a position of the pressure sensing assembly 22 when being impacted or squeezed. The warning module 24 may be an upper computer electrically connected to the single chip microcomputer, and is configured to receive information transmitted by the single chip microcomputer and perform corresponding warning according to the received information. In addition, the warning module 24 may also be a warning mechanism such as a buzzer, a horn, a warning light, etc., and can perform corresponding sound and light warning according to the indication of the single chip microcomputer.
The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Further, the present application may repeat reference numerals and/or reference letters in the various examples for simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A thin film pressure sensor, comprising:
a pressure sensitive membrane configured to change an electrical characteristic upon receipt of an external pressure;
the first electrode layer comprises a plurality of first electrode assemblies arranged on the first surface of the pressure-sensitive film piece along a first direction array and first leads electrically connected with the first electrode assemblies;
the second electrode layer comprises a plurality of second electrode assemblies arranged on the second surface of the pressure-sensitive film piece in an array manner along a second direction and second leads electrically connected with the second electrode assemblies, and an included angle is formed between the first direction and the second direction;
the first base layer is arranged on one side, far away from the pressure-sensitive film piece, of the first electrode layer;
the second base layer is arranged on one side, far away from the pressure-sensitive film piece, of the second electrode layer;
the first connecting terminal is provided with a first connecting part and a second connecting part, the first connecting part is electrically connected with the first conducting wire and the second conducting wire, and the second connecting part is used for being connected with an external control element;
the pressure-sensitive thin film element, the first electrode layer, the second electrode layer, the first base layer and the second base layer are all flexible elements.
2. The membrane pressure sensor according to claim 1, wherein:
the first base layer comprises a first bearing area arranged corresponding to each first electrode assembly of the first electrode layer and a first wiring area arranged on the peripheral side of the first bearing area;
the second base layer comprises a second bearing area arranged corresponding to each second electrode assembly of the second electrode layer and a second wiring area arranged on the periphery of the second bearing area, and the second wiring area is arranged corresponding to the first wiring area;
the first wire is arranged in the first wiring area, and the second wire is arranged in the second wiring area.
3. The membrane pressure sensor of claim 2, further comprising:
the second wiring terminal is provided with a third connecting part and a fourth connecting part;
the third wire is arranged in the first wiring area corresponding to the first wire, one end of the third wire is electrically connected with the first connecting part, and the other end of the third wire is electrically connected with the third connecting part;
a fourth wire, which is disposed in the second wiring region corresponding to the second wire, and one end of which is electrically connected to the corresponding second wire and the other end of which is electrically connected to the third connecting portion;
wherein the fourth connection portion is configured to fit with the second connection portion.
4. The membrane pressure sensor of claim 3, wherein:
one end of the fourth wire is electrically connected to the second wire through the second electrode assembly, and the other end of the fourth wire is electrically connected to the third connection part.
5. The thin film pressure sensor according to any one of claims 1 to 4, wherein:
the first electrode assembly comprises a first sensing part and a first sensing connecting part electrically connected with the first sensing part, and the first lead is electrically connected with the first sensing part through the first sensing connecting part;
the second electrode assembly comprises a second sensing part and a second sensing connecting part electrically connected with the second sensing part, and the second lead is electrically connected with the second sensing part through the second sensing connecting part;
wherein the first sensing parts of the first electrode assemblies and the second sensing parts of the second electrode assemblies are arranged correspondingly.
6. The membrane pressure sensor of claim 5, wherein:
the first induction part comprises a plurality of first electrode pieces which are parallel to the first direction and are arranged at intervals, the first induction connecting parts are a plurality of first connecting pieces which are arranged vertically to the first direction and are arranged at intervals, and the first electrode pieces are electrically connected with the first lead wires through the first connecting pieces;
the second induction part comprises a plurality of second electrode pieces which are parallel to the second direction and are arranged at intervals, the second induction connecting parts are a plurality of second connecting pieces which are perpendicular to the second direction and are arranged at intervals, and the second electrode pieces are electrically connected with the second conducting wires through the second connecting pieces.
7. The membrane pressure sensor of claim 5, further comprising:
and the positioning holes penetrate through the film pressure sensor, wherein each positioning hole is used for fixedly connecting the film pressure sensor with an external connecting piece.
8. The film pressure sensor according to any one of claims 1 to 4, wherein:
the first base layer and the second base layer are any one of FPC boards or PET boards.
9. The membrane pressure sensor of claim 8, wherein: the pressure-sensitive film piece is a resistive pressure-sensitive film piece.
10. The utility model provides an anticollision institution for the laminating wall uses, its characterized in that includes:
a protective pad comprising a multi-layer flexible buffer;
the pressure sensing assembly comprises film pressure sensors which are arranged on the first surface of the flexible buffer part in an array manner;
the analysis module is electrically connected with the pressure sensing assembly;
the warning module is electrically connected with the analysis module;
wherein the thin film pressure sensor is as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122634540.3U CN216593926U (en) | 2021-10-28 | 2021-10-28 | Film pressure sensor and anticollision institution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122634540.3U CN216593926U (en) | 2021-10-28 | 2021-10-28 | Film pressure sensor and anticollision institution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116046227A (en) * | 2023-01-12 | 2023-05-02 | 尧乐网络科技（上海）有限公司 | Manufacturing method of fabric sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116046227A (en) * | 2023-01-12 | 2023-05-02 | 尧乐网络科技（上海）有限公司 | Manufacturing method of fabric sensor |
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