CN218496345U - Liquid leakage detection sensor - Google Patents
Liquid leakage detection sensor Download PDFInfo
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- CN218496345U CN218496345U CN202222225513.5U CN202222225513U CN218496345U CN 218496345 U CN218496345 U CN 218496345U CN 202222225513 U CN202222225513 U CN 202222225513U CN 218496345 U CN218496345 U CN 218496345U
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Abstract
The embodiment of the utility model discloses weeping detects sensor for detect the pipeline weeping, the weeping detects sensor includes the protective housing and is used for detecting the flexible film circuit of weeping, and flexible film circuit sets up in one side of protective housing orientation pipeline, and the outer wall of pipeline is located to protective housing coiling cyclization and cover. The flexible thin film circuit comprises a first detection circuit and a second detection circuit which are oppositely arranged; the first detection circuit comprises a plurality of first detection units arranged at intervals, the second detection circuit comprises a plurality of second detection units arranged at intervals, and the first detection units and the second detection units are used for feeding back the leakage of the pipeline after being connected. Compared with the prior art, the weeping detection sensor that this embodiment provided has solved the easy cracked problem of detection structure.
Description
Technical Field
The utility model relates to a weeping detects technical field, especially relates to a weeping detects sensor.
Background
The liquid leakage detection sensor refers to a detection device for detecting whether a pipe leaks or not.
In the process of implementing the present application, the inventors found that the prior art has at least the following problems: the liquid leakage detection sensor in the prior art is mainly fixed on the periphery of a pipeline in a sleeving or sticking mode, and then detects whether liquid leakage exists in the pipeline or not through a detection circuit. Because the outer wall of pipeline is mostly arc or circular, when fixed this weeping detection sensor, detection circuitry is easy to be buckled, leads to detection circuitry fracture to influence the testing result.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a folding-resistant leakage detection sensor.
A liquid leakage detection sensor is used for detecting liquid leakage of a pipeline and comprises a protective shell and a flexible thin film circuit used for detecting the liquid leakage, wherein the flexible thin film circuit is arranged on one side, facing the pipeline, of the protective shell;
the flexible thin film circuit comprises a first detection circuit and a second detection circuit which are oppositely arranged at intervals; the first detection circuit comprises a plurality of first detection units arranged at intervals, the second detection circuit comprises a plurality of second detection units arranged at intervals, and the first detection units and the second detection units are used for feeding back the pipeline leakage after being connected.
In some embodiments of the leakage detection sensor, a plurality of the first detection units are arranged along an axial direction of the pipe, and a plurality of the second detection units are arranged along the axial direction of the pipe.
In some embodiments of the liquid leakage detection sensor, the first detection unit and the second detection unit are disposed correspondingly or alternately.
In some embodiments of the liquid leakage detection sensor, the first detection unit and/or the second detection unit may have one or more of a rectangular shape, a circular shape, a star shape, or a triangular shape.
In some embodiments of the liquid leakage detection sensor, the liquid leakage detection sensor further includes an insulating member, and the insulating member is provided between two adjacent first detection units, two adjacent second detection units, and the first detection circuit and the second detection circuit.
In some embodiments of the liquid leakage detection sensor, a pitch of the first detection circuit and the second detection circuit is not less than 0.5mm; and/or
The distance between two adjacent first detection units or two adjacent second detection units is not less than 0.5mm.
In some embodiments of the leakage detection sensor, the flexible thin film circuit further includes a first lead electrically connected to both ends of the first detection circuit, the first lead being configured to detect whether the first detection circuit is disconnected;
and/or the flexible thin film circuit further comprises a second lead electrically connected with two ends of the second detection circuit, and the second lead is used for detecting whether the second detection circuit is disconnected.
In some embodiments of the liquid leakage detection sensor, at least one first connecting piece is disposed on one side of the protective casing, at least one second connecting piece is disposed on the other side of the protective casing, and the first connecting piece is connected to the second connecting piece.
In some embodiments of the leakage detection sensor, the first connecting member includes a first extending portion extending in a direction away from the protective case, and a first barb connected to an end of the first extending portion away from the protective case, the first barb being configured to connect to the second connecting member;
the second connecting piece comprises a second extending portion extending towards the direction far away from the protective shell and a second barb connected with one end, far away from the protective shell, of the second extending portion, and the second barb is used for being connected with the first connecting piece.
In some embodiments of the sensor, the sensor further comprises an isolation layer located between the flexible thin film circuit and the pipeline, and the isolation layer is used for isolating the flexible thin film circuit from the pipeline and allowing leakage of the pipeline to pass through.
Implement the embodiment of the utility model provides a, will have following beneficial effect at least:
according to the leakage detection sensor provided by the embodiment, the end face, provided with the flexible thin film circuit, of the protective shell is opposite to the pipeline, and then the protective shell is bent based on the contour of the pipeline, so that the protective shell surrounds the pipeline. When the flexible thin film circuit is bent along with the protective shell, the interval between the first detection circuit and the second detection circuit, the interval between the two adjacent first detection units and the interval between the two adjacent second detection units are all flexible thin film circuits to provide bending points, so that the first detection circuit or the second detection circuit is prevented from being broken. Compared with the prior art, the weeping detection sensor that this embodiment provided has solved the easy cracked problem of detection structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 is a schematic structural diagram of a leakage detection sensor according to an embodiment.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
Fig. 3 is a schematic structural view of the leakage detection sensor of fig. 1 in a wound state.
Fig. 4 is a schematic structural diagram of a leakage detection sensor according to yet another embodiment.
Fig. 5 is an enlarged schematic view of B in fig. 4.
Fig. 6 is an enlarged schematic view of another view of the leakage detecting sensor of fig. 1.
Reference numerals are as follows:
100-a leakage detection sensor;
110-protective case, 112-first connector, 1122-first extension, 1224-first barb, 114-second connector, 1142-second extension, 1144-second barb;
120-flexible thin film circuit, 122-first detection circuit, 1222-first detection unit, 124-second detection circuit, 1242-second detection unit, 126-insulator, 128-first conductive line, 129-second conductive line;
130-outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, interchangeably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, and communicated between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
Referring to fig. 1-6, an embodiment of the present invention provides a sensor 100 for detecting a liquid leakage in a pipeline, where the sensor 100 includes a protection shell 110 and a flexible thin film circuit 120 for detecting the liquid leakage, the flexible thin film circuit 120 is disposed on one side of the protection shell 110 facing the pipeline, and the protection shell 110 is wound to form a ring and is sleeved on an outer wall of the pipeline. The flexible thin film circuit 120 includes a first detection circuit 122 and a second detection circuit 124 which are oppositely and separately arranged; the first detecting circuit 122 includes a plurality of first detecting units 1222 spaced apart from each other, the second detecting circuit 124 includes a plurality of second detecting units 1242 spaced apart from each other, and the first detecting units 1222 and the second detecting units 1242 are used for feeding back the leakage of the pipeline after being connected.
According to the liquid leakage detection sensor 100 provided in the above embodiment, the end surface of the protective shell 110 having the flexible thin film circuit 120 is directly opposite to the pipeline, and then the protective shell 110 is bent based on the contour of the pipeline, so that the protective shell 110 surrounds the pipeline. When the flexible thin film circuit 120 is bent along with the protective casing 110, the bending points are provided for the flexible thin film circuit 120 by the space between the first detection circuit 122 and the second detection circuit 124, the space between the two adjacent first detection units 1222 and the space between the two adjacent second detection units 1242, so as to prevent the first detection circuit 122 or the second detection circuit 124 from being broken.
Compared with the prior art, the leakage detection sensor 100 provided by the embodiment solves the problem that the detection structure is easy to break.
In an embodiment of the present invention, the first detecting units 1222 are arranged along the axial direction of the pipeline, and the second detecting units 1242 are arranged along the axial direction of the pipeline. Such a configuration may allow the detection range of the leak detection sensor 100 to be wider than the circumferential or other arrangements of the pipes.
In a specific embodiment, the first detecting units 1222 are disposed corresponding to or staggered with the second detecting units 1242.
Further, the leakage detecting sensor 100 further includes a lead 130 electrically connected to the flexible thin film circuit 120, and the lead 130 is mainly used for connecting to other circuit structures.
Specifically, when there are a plurality of branches in the pipeline, the leakage detecting sensor 100 may be fixed to each branch pipeline, and two adjacent leakage detecting sensors 100 may be connected by the lead line 130.
Referring to fig. 1, 2 and 4, the outgoing line 130 may be located at one axial end of the protective shell 110, or may be located at two axial ends of the protective shell 110, and the position of the outgoing line may be set based on an actual use situation.
Specifically, the first detecting unit 1222 and the second detecting unit 1242 can be regarded as pads in the circuit board, and the flexible thin film circuit 120 is provided with a scribe line or a thin bendable connecting line to connect the plurality of first detecting circuits 122 or the plurality of second detecting circuits 124.
Referring to fig. 2 and 5, in the present embodiment, the shape of the first detecting unit 1222 and/or the second detecting unit 1242 may be one or more of a rectangle, a circle, a star, or a triangle.
Specifically, the first detecting unit 1222 or the second detecting unit 1242 may be made of pure metal such as copper, aluminum, nickel, etc., or carbon powder, iron-chromium-aluminum alloy, etc.
Further, the thickness of the flexible thin film circuit 120 is 0.01mm to 0.5mm.
For example, the thickness of the flexible thin film circuit 120 is 0.01mm, 0.1mm, 0.3mm, or 0.5mm.
In yet another more specific embodiment, the leakage detecting sensor 100 further includes an insulating member 126, and the insulating member 126 is provided between the adjacent two first detecting units 1222, the adjacent two second detecting units 1242, and the first detecting circuit 122 and the second detecting circuit 124. The insulating member 126 located between the first detection circuit 122 and the second detection circuit 124 can prevent the first detection circuit 122 and the second detection circuit 124 from being conducted after being bent, so as to avoid affecting the detection result. The insulating member 126 of the two adjacent first detecting units 1222 or the two adjacent second detecting units 1242 can protect the flexible thin film circuit 120 from being damaged when being bent.
Optionally, the insulation 126 is a TPU, PET or PI piece. It should be noted that all three abbreviations refer to the material names in the prior art.
Further, the thickness of the insulating member 126 is 0.01mm to 1mm.
For example, the thickness of the insulator 126 is 0.01m, 0.1mm, 0.5mm, or 1mm.
The utility model provides an in one embodiment, first detection circuitry and second detection circuitry's interval is not less than 0.5mm. For example, the first detection circuit and the second detection circuit are spaced by 0.5mm or 1mm. Therefore, the insulativity between the first detection circuit and the second detection circuit can be ensured, the mutual contact is avoided, the detection result is prevented from being influenced, and enough space can be provided for the bending of the flexible thin film circuit.
The distance between two adjacent first detection units or two adjacent second detection units is not less than 0.5mm. For example, the distance between two adjacent first detection units is 0.5mm or 1mm, and the distance between two adjacent second detection units is 0.5mm or 1mm. This provides sufficient space for the flexible film circuit to bend when it is bent.
Referring to fig. 2, in another embodiment, the flexible thin film circuit 120 further includes a first conductive line 128 electrically connected to two ends of the first detection circuit 122 and/or a second conductive line 129 electrically connected to two ends of the second detection circuit 124, wherein the first conductive line 128 is used for detecting whether the first detection circuit 122 is disconnected and the second conductive line 129 is used for detecting whether the second detection circuit 124 is disconnected. The first conductive line 128 and the second conductive line 129 in this embodiment have the same structure and function, and the first conductive line 128 is taken as an example for the sake of reducing the space.
Specifically, the first conducting wire 128 is connected in parallel to two ends of the first detecting circuit 122, and in a normal state, there is a current flowing through both the first conducting wire 128 and the first detecting circuit 122. When the first detection circuit 122 breaks, the first detection circuit 122 is disconnected, and only the first conducting wire 128 passes through the current. So that other circuits connected to the flexible thin film circuit 120 can detect the current change therein, thereby determining that the first detection circuit 122 is broken. In this embodiment, by additionally providing the first conductive line 128 and the second conductive line 129, the states of the first detection circuit 122 and the second detection circuit 124 can be read in real time, so as to avoid the influence of the breaking of the two on the detection result.
Referring to fig. 6, in another embodiment of the present invention, at least one first connecting member is disposed on one side of the protective casing, at least one second connecting member is disposed on the other side of the protective casing, and the first connecting member is connected to the second connecting member.
In one embodiment, the number of first connectors 112 may be two or more, and/or the number of second connectors 114 may be two or more. In this embodiment, there are many cases, for example, the number of the first connecting members 112 is one, the number of the second connecting members 114 is multiple, or the numbers of the first connecting members 112 and the second connecting members 114 are multiple, and so on. With such setting, the diameter of the protective case 110 surrounding in a ring can be adjusted, thereby enabling the leakage detecting sensor 100 to be adapted to pipes of different diameters.
In a specific embodiment, the first connector 112 includes a first extending portion 1122 extending away from the protective shell 110 and a first barb 1224 coupled to an end of the first extending portion 1122 away from the protective shell 110, the first barb 1224 configured to couple to the second connector 114. The second connector 114 includes a second extending portion 1142 extending in a direction away from the protective shell 110 and a second barb 1144 connected to an end of the second extending portion 1142 away from the protective shell 110, the second barb 1144 being used for connecting with the first connector 112. In this embodiment, the first connecting element 112 and the second connecting element 114 may have a barb structure, or one of them may have a ring structure.
Further, the first connecting member 112 of the present embodiment adopts the design of the first barb 1224, and the connection can be completed only by hanging the first barb 1224 on the second connecting member 114, which is convenient to operate. The second connection 114 is also.
In other possible embodiments, the first connecting member 112 and the second connecting member 114 can also be a hook and loop fastener, respectively.
In another embodiment, the protective shell 110 is transparent or translucent. In this way, it is convenient for a worker or a machine vision device to directly observe the leakage of the pipeline and the flexible thin film circuit 120.
In another embodiment of the present invention, the leakage detecting sensor 100 further includes an isolation layer located between the flexible thin film circuit 120 and the pipeline, and the isolation layer is used to isolate the flexible thin film circuit 120 from the pipeline and allow the leakage of the pipeline to pass through.
It is understood that the leak detection sensor 100 may not use an isolation layer when the conduit is a non-conductive material. When the pipeline is made of conductive material, the isolation layer can prevent the pipeline from contacting the flexible thin film circuit 120, thereby ensuring the detection result.
Optionally, the barrier layer is a gauze, screen, cloth, or paper.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The leakage detection sensor is characterized by being used for detecting leakage of a pipeline and comprising a protective shell and a flexible thin film circuit for detecting leakage, wherein the flexible thin film circuit is arranged on one side, facing the pipeline, of the protective shell;
the flexible thin film circuit comprises a first detection circuit and a second detection circuit which are opposite and arranged at intervals; the first detection circuit comprises a plurality of first detection units arranged at intervals, the second detection circuit comprises a plurality of second detection units arranged at intervals, and the first detection units and the second detection units are used for feeding back the pipeline leakage after being connected.
2. The leak detection sensor according to claim 1, wherein a plurality of the first detection units are arranged in an axial direction of the pipeline, and a plurality of the second detection units are arranged in the axial direction of the pipeline.
3. The leak detection sensor according to claim 2, wherein the first detection unit and the second detection unit are provided in correspondence or in a staggered manner.
4. The leak detection sensor according to claim 3, wherein the shape of the first detection unit and/or the second detection unit is one or more of rectangular, circular, star-shaped, or triangular.
5. The leak detection sensor according to claim 1, further comprising an insulating member provided between two adjacent first detection units, two adjacent second detection units, and the first detection circuit and the second detection circuit.
6. The leak detection sensor according to claim 1, wherein a pitch between the first detection circuit and the second detection circuit is not less than 0.5mm; and/or
The distance between two adjacent first detection units or two adjacent second detection units is not less than 0.5mm.
7. The leak detection sensor according to claim 1, wherein the flexible thin film circuit further comprises a first lead electrically connected to both ends of the first detection circuit, the first lead being configured to detect whether the first detection circuit is disconnected;
and/or the flexible thin film circuit further comprises a second lead electrically connected with two ends of the second detection circuit, and the second lead is used for detecting whether the second detection circuit is disconnected.
8. The leak detection sensor according to any one of claims 1 to 6, wherein at least one first connecting member is provided on one side of the protective shell, and at least one second connecting member is provided on the other side of the protective shell, and the first connecting member is connected to the second connecting member.
9. The leak detection sensor according to claim 8, wherein the first connecting member includes a first extending portion extending in a direction away from the protective case, and a first barb connected to an end of the first extending portion away from the protective case, the first barb being adapted to be connected to the second connecting member;
the second connecting piece comprises a second extending portion extending in the direction away from the protective shell and a second barb connected with one end, away from the protective shell, of the second extending portion, and the second barb is used for being connected with the first connecting piece.
10. The leak detection sensor according to any one of claims 1 to 7, further comprising an isolation layer located between the flexible membrane circuit and the pipeline, the isolation layer being configured to isolate the flexible membrane circuit from the pipeline and allow a leak of the pipeline to pass therethrough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222225513.5U CN218496345U (en) | 2022-08-23 | 2022-08-23 | Liquid leakage detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222225513.5U CN218496345U (en) | 2022-08-23 | 2022-08-23 | Liquid leakage detection sensor |
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| Publication Number | Publication Date |
|---|---|
| CN218496345U true CN218496345U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222225513.5U Active CN218496345U (en) | 2022-08-23 | 2022-08-23 | Liquid leakage detection sensor |
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| CN (1) | CN218496345U (en) |
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- 2022-08-23 CN CN202222225513.5U patent/CN218496345U/en active Active
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