Conductive strip and safety touch strip for pressure detection
By using a conductive wire design with embedded conductive particles in the substrate in the safety contact strip, the problem of pressure sensor damage under external impact or repeated bending is solved, ensuring stable transmission of electrical signals and realizing the anti-pinch function of the safety contact strip.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MOXIAN TECH DONGGUAN CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-16
AI Technical Summary
When the existing safety contact strip is subjected to a large external impact or repeated bending, the pressure sensor is easily damaged or broken, resulting in the failure of the electrical signal transmission function.
The conductive strip design includes a substrate, a positive conductive wire, and a negative conductive wire. Conductive particles are placed inside the substrate, and the conductive wire is electrically connected to the conductive particles. The conductive wire can bend with the substrate. The change in the layout of the conductive particles at the deformation position changes the resistance and current, generates an electrical signal, and transmits it to the controller.
This ensures that the conductive wire is not easily broken or short-circuited under external force, allowing for normal transmission of electrical signals, preventing the failure of electrical signal transmission function, and ensuring the effectiveness of the anti-pinch function of the safety contact strip.
Smart Images
Figure CN224366559U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pressure sensor technical field especially is related to a kind of for pressure detection conductive strip and safety touch edge. BACKGROUND
[0002] At present, some electric small table board, automatic rotating door and lifting platform and other equipment on market are provided with safety touch edge. Safety touch edge is provided with pressure sensor inside, when the rotating structure of small table board or automatic rotating door rotates, force is applied to safety touch edge, pressure sensor detects pressure and transmits signal to controller, and controller controls rotating structure to stop rotating, to realize the function of anti-pinch, avoid human body to be pinched.
[0003] In the related art, when safety touch edge suffers greater external force impact or multiple repeated bending, pressure sensor is easily damaged or open circuit, leading to the failure of electric signal transmission function. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of for pressure detection conductive strip, to solve the technical problem that safety touch edge is easily damaged or open circuit when suffering greater external force impact or multiple repeated bending, leading to the failure of electric signal transmission function.
[0005] In order to realize the above-mentioned purpose, the utility model provides a kind of for pressure detection conductive strip, including strip shape base body, positive electrode conductive silk and negative electrode conductive silk, the inside of the base body is provided with conductive particle, one end of the positive electrode conductive silk and the negative electrode conductive silk is embedded in the inside of the base body along the extension direction of the base body, and is electrically connected with the conductive particle;The other end of the positive electrode conductive silk and the negative electrode conductive silk is worn out the base body, for being electrically connected with the controller outside.
[0006] Among them, the base body can be bent under the action of external force, the positive electrode conductive silk and the negative electrode conductive silk can be bent along with the bending of the base body.
[0007] In the conductive strip of the utility model, the base body has oppositely arranged top and bottom, one end of the positive electrode conductive silk and the negative electrode conductive silk extends to the bottom of the base body, and the other end of the positive electrode conductive silk and the negative electrode conductive silk is worn out the top of the base body.
[0008] In the conductive strip of the utility model, the base body includes one of silica gel, rubber, thermoplastic polyurethane elastomer and foam.
[0009] In the conductive strip of the utility model, the positive electrode conductive silk and the negative electrode conductive silk include one of copper wire, steel wire, silver wire and alloy wire.
[0010] In the conductive strip, the positive conductive wire and the negative conductive wire are integrally formed with the base body.
[0011] In a second aspect, the utility model provides a safe touch edge strip, including insulating cover and the conductive strip for pressure detection, the conductive strip is arranged in the insulating cover.
[0012] The utility model provides a kind of conductive strip for pressure detection, its beneficial effect lies in:
[0013] The conductive strip of the utility model includes base body of strip shape, positive conductive wire and negative conductive wire, and the positive conductive wire and the negative conductive wire are metal wires with conductivity, one end of the positive conductive wire and the negative conductive wire is arranged in the inside of base body and is electrically connected with conductive particle, the other end of the positive conductive wire and the negative conductive wire is arranged out of base body and is electrically connected with external controller.When base body is deformed by bending under external force, the layout of conductive particle at deformation position changes, so as to change the resistance and current of base body, and further generate corresponding electric signal.The utility model transmits the electric signal generated by base body deformation to controller by the positive conductive wire and the negative conductive wire, and the positive conductive wire and the negative conductive wire can be bent along with the bending of base body, and will not be easily broken or short-circuited, so as to normally transmit electric signal and prevent the failure of electric signal transmission function. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0015] Figure 1 The structure schematic view of the conductive strip provided by the utility model embodiment is shown in the figure.
[0016] Figure 2 The structure schematic view of the conductive strip provided by the utility model embodiment is shown in the figure.
[0017] Figure 3 The explosion schematic view of the conductive strip provided by the utility model embodiment is shown in the figure.
[0018] Figure 4 The production schematic view of the conductive strip provided by the utility model embodiment is shown in the figure.
[0019] The marks in the figure are as follows:
[0020] 10, base body; 11, top; 12, bottom; 20, positive conductive wire; 30, negative conductive wire; 40, mold; 41, inner cavity; 100, conductive strip. Detailed Implementation
[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0022] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and components referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.
[0024] like Figures 1 to 3 As shown, this utility model embodiment provides a conductive strip 100 for pressure detection, including a strip-shaped substrate 10, a positive conductive wire 20, and a negative conductive wire 30. Conductive particles are disposed inside the substrate 10. One end of the positive conductive wire 20 and the negative conductive wire 30 is embedded inside the substrate 10 along the extension direction of the substrate 10 and is electrically connected to the conductive particles. The other end of the positive conductive wire 20 and the negative conductive wire 30 extends out of the substrate 10 for electrical connection with an external controller. The substrate 10 can be bent under external force, and the positive conductive wire 20 and the negative conductive wire 30 can bend along with the bending of the substrate 10.
[0025] Based on the above technical solution, the positive conductive wire 20 and the negative conductive wire 30 are conductive metal wires. One end of the positive conductive wire 20 and the negative conductive wire 30 passes through the interior of the substrate 10 and is electrically connected to the conductive particles. The other end of the positive conductive wire 20 and the negative conductive wire 30 passes through the substrate 10 and is electrically connected to an external controller. When the substrate 10 is bent and deformed under external force, the layout of the conductive particles at the deformation location changes, thereby changing the resistance and current of the substrate 10, and thus generating a corresponding electrical signal. This electrical signal is transmitted to the external controller through the positive conductive wire 20 and the negative conductive wire 30. In this embodiment, the positive conductive wire 20 and the negative conductive wire 30 can bend with the substrate 10, and will not easily break or short-circuit, thus ensuring normal transmission of electrical signals and preventing failure of the electrical signal transmission function.
[0026] The conductive strip 100 is applied in the safety touch strip in the embodiment, the safety touch strip is installed on the edge of the rotating structure, when the safety touch strip abuts against the human body, the safety touch strip is deformed by bending, the conductive strip 100 detects the corresponding electrical signal and transmits to the controller, the controller controls the rotating structure to stop rotating, realizes the anti-pinch function, and avoids the human body from being pinched.
[0027] It should be understood that the base body 10 can be a regular strip-shaped structure, such as a rectangular or cylindrical strip-shaped structure, or an irregular strip-shaped structure, and the conductive strip 100 formed can be adjusted according to the shape of the safety touch strip, and the embodiment is not specifically limited.
[0028] In some embodiments, the base body 10 comprises one of silica gel, rubber, thermoplastic polyurethane elastomer, and foam.
[0029] In a specific embodiment, the material of the base body 10 is silica gel, and the conductive strip 100 is a strip-shaped conductive silica gel.
[0030] In a specific embodiment, the material of the base body 10 is rubber, and the conductive strip 100 is a strip-shaped conductive rubber.
[0031] In a specific embodiment, the material of the base body 10 is foam, and the conductive strip 100 is a strip-shaped conductive foam.
[0032] In the above embodiment, the conductive silica gel, the conductive rubber or the conductive foam is used in combination with the positive electrode conductive wire 20 and the negative electrode conductive wire 30 to form a flexible pressure sensor that can detect pressure, thereby being applied in the safety touch strip.
[0033] In some embodiments, the positive electrode conductive wire 20 and the negative electrode conductive wire 30 comprise one of copper wire, steel wire, silver wire and alloy wire.
[0034] For example, the positive electrode conductive wire 20 and the negative electrode conductive wire 30 comprise copper wire, the copper wire has good conductivity and high flexibility, can be bent with the bending of the base body 10, and is not easy to break, so that the electrical signal transmission function of the safety touch strip after repeated bending for many times can be prevented from failing.
[0035] In some embodiments, the positive electrode conductive wire 20 and the negative electrode conductive wire 30 are integrally formed with the base body 10.
[0036] For example, a double-head extruder can be used to extrude the positive electrode conductive wire 20 and the negative electrode conductive wire 30 together with the base body 10.
[0037] In some embodiments, as Figure 4As shown, the positive conductive wire 20 and the negative conductive wire 30 are first placed in the inner cavity 41 of the mold 40, and then the material of the substrate 10 is cast into the inner cavity 41 of the mold 40 so that the positive conductive wire 20 and the negative conductive wire 30 are integrally formed with the substrate 10.
[0038] In some embodiments, such as Figure 2 and Figure 3 As shown, the substrate 10 has a top 11 and a bottom 12 disposed opposite to each other. One end of the positive conductive wire 20 and the negative conductive wire 30 extends to the bottom 12 of the substrate 10, and the other end of the positive conductive wire 20 and the negative conductive wire 30 extends out of the top 11 of the substrate 10.
[0039] Specifically, the extension lengths of the positive conductive wire 20 and the negative conductive wire 30 are greater than the extension length of the substrate 10. One end of the positive conductive wire 20 and the negative conductive wire 30 extends to the bottom 12 inside the substrate 10, and the other end of the positive conductive wire 20 and the negative conductive wire 30 extends out of the top 11 of the substrate 10 to a predetermined length. That is, the positive conductive wire 20 and the negative conductive wire 30 penetrate the interior of the substrate 10, so that the electrical signals generated by the deformation of various parts of the substrate 10 can be transmitted to the external controller, thereby improving the accuracy of the pressure detection of the conductive strip 100.
[0040] Secondly, this utility model provides a safety contact strip, including an insulating jacket and a conductive strip 100 for pressure detection, wherein the conductive strip 100 is inserted inside the insulating jacket.
[0041] Specifically, the insulating jacket has a strip-shaped structure with a hollow cavity. The conductive strip 100 is inserted into the hollow cavity of the insulating jacket. The insulating jacket provides insulation protection for the conductive strip 100, preventing the conductive strip 100 from direct contact with the external environment and avoiding the risk of short circuit or damage.
[0042] The conductive strip 100 is applied inside the safety contact strip, which is installed on the edge of the rotating structure. When the safety contact strip comes into contact with the human body, it bends and deforms. The conductive strip 100 detects the corresponding electrical signal and transmits it to the controller. The controller then controls the rotating structure to stop rotating, thus achieving the anti-pinch function and preventing the human body from being pinched.
[0043] For example, the aforementioned rotating structure can be a rotating component of equipment such as an electric small table, an automatic revolving door, or a lifting platform.
[0044] It should be understood that the term "and / or" as used herein refers to any combination of associated listed terms, and all possible combinations, and includes these combinations. It is to be noted that the terms "comprising", "comprises" or any other variant thereof are intended to cover non-exclusive inclusions, such that a process, method, article or system that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article or system. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or system that includes the element.
[0045] The above-mentioned embodiment serial numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above description is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A conductive strip for pressure detection, characterized in that, It includes a strip-shaped substrate, a positive conductive wire, and a negative conductive wire. The substrate has conductive particles inside. One end of the positive and negative conductive wires is embedded in the substrate along the extension direction of the substrate and is electrically connected to the conductive particles. The other end of the positive and negative conductive wires extends out of the substrate for electrical connection with an external controller. The substrate is capable of bending under external force, and the positive and negative conductive wires are capable of bending along with the substrate.
2. The conductive strip for pressure detection according to claim 1, characterized in that, The substrate has a top and a bottom that are disposed opposite to each other. One end of the positive conductive wire and the negative conductive wire extends to the bottom of the substrate, and the other end of the positive conductive wire and the negative conductive wire extends out of the top of the substrate.
3. The conductive strip for pressure detection according to claim 1, characterized in that, The matrix includes one of silicone, rubber, thermoplastic polyurethane elastomer, and foam.
4. The conductive strip for pressure detection according to claim 1, characterized in that, The positive conductive wire and the negative conductive wire include one of copper wire, steel wire, silver wire and alloy wire.
5. The conductive strip for pressure detection according to claim 1, characterized in that, The positive conductive wire and the negative conductive wire are integrally formed with the substrate.
6. A safety edge strip, characterized in that, It includes an insulating jacket and a conductive strip for pressure detection as described in any one of claims 1 to 5, the conductive strip being inserted inside the insulating jacket.