CN215677208U - Water level sensor electrode assembly - Google Patents
Water level sensor electrode assembly Download PDFInfo
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- CN215677208U CN215677208U CN202121592359.4U CN202121592359U CN215677208U CN 215677208 U CN215677208 U CN 215677208U CN 202121592359 U CN202121592359 U CN 202121592359U CN 215677208 U CN215677208 U CN 215677208U
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Abstract
The utility model provides a water level sensor electrode assembly, wherein at least one group of anode components comprise a titanium electrode bar with a conductive noble metal oxide coating on the surface, a conductive metal piece and a lead-out wire; the titanium electrode bar is connected with one end of the conductive metal piece, and the other end of the conductive metal piece is welded with a lead-out wire. The automobile anti-freezing liquid level sensor can adopt 2 electrode assemblies as two electrodes of the automobile water level sensor, is formed by nylon injection molding, detects the water level in the automobile water tank by an electrolysis principle, has the advantages of reliable structure, long service life, maintenance-free property and the like, and is mainly used for detecting and alarming the liquid level of the automobile anti-freezing liquid.
Description
Technical Field
The utility model relates to the technical field of water level sensors, in particular to an electrode assembly of a water level sensor.
Background
The automobile water level alarm sensor adopts the electrolysis principle to carry out intelligent alarm monitoring on the liquid levels of the antifreeze and other liquids. The electrolytic electrode of the conventional automobile water level sensor usually adopts a stainless steel electrode, and in the actual use process, due to the electrolytic oxidation reaction, non-conductive oxides can be generated on the surface of the stainless steel electrode, so that the electrolytic reaction is prevented from continuing to occur, and the automobile water level alarm sensor fails.
SUMMERY OF THE UTILITY MODEL
Therefore, the water level sensor electrode assembly for the automobile water level alarm is needed to be provided, the surface oxidation failure of the stainless steel electrode can be avoided, and the service life of the sensor electrode assembly is prolonged.
The utility model adopts the following technical scheme:
the utility model provides a water level sensor electrode assembly which comprises an anode component and a cathode component, wherein the anode component and the cathode component are embedded into an injection molding structure in parallel; the anode assembly comprises a titanium electrode bar, a conductive metal piece and a lead-out wire, wherein a conductive anti-oxidation coating is arranged on the surface of the titanium electrode bar, the non-free end of the titanium electrode bar is embedded into one end of the conductive metal piece, and the lead-out wire is arranged at the other end of the conductive metal piece.
In one embodiment, the conductive oxidation resistant coating is a conductive noble metal oxide coating.
In one embodiment, the water level sensor electrode assembly further comprises a conductive adhesive layer, the conductive metal piece is riveted with the non-free end of the titanium electrode bar, and the conductive adhesive layer is arranged on the riveted end face. Specifically, the conductive metal part is a copper sleeve, the copper sleeve is provided with an assembly inner hole, and the end part of the non-free end of the titanium electrode rod is embedded into the assembly inner hole and is connected with the copper sleeve in a riveting mode.
In one embodiment, the lead-out wire is welded to the copper sleeve.
In one embodiment, the radial dimension of the end of the copper sleeve connected with the non-free end of the titanium electrode bar is larger than that of the end connected with the lead-out wire, so that an end side convex edge structure is formed.
In one embodiment, the electrode rods of the cathode assembly and the anode assembly are both titanium electrode rods with conductive oxidation-resistant coatings on the surfaces.
In one embodiment, the electrode rod of the cathode assembly is a non-titanium electrode rod, and a conventional metal electrode is selected.
In one embodiment, the injection molded structure is a nylon injection molded integral insert structure.
The utility model has the beneficial effects that:
compared with the prior art, the titanium electrode bar with the conductive anti-oxidation coating (metal oxide coating) on the surface is used as the anode and the cathode of the electrode assembly of the water level sensor to form the automobile water level alarm sensor, and the anode and the cathode do not have oxidation reaction, so that the anode and the cathode do not lose efficacy in the service life range of the coating, and the long-term reliability is ensured. The water level sensor electrode assembly has the advantages of simple structure and reliable performance, and can be used as a core performance part of an automobile water level sensor.
Specifically, when the titanium electrode rod is used as an electrode assembly of an automobile water level alarm sensor, the titanium electrode rod is immersed in an automobile antifreeze solution and is used as a cathode and an anode of an electrolytic reaction, a conductive loop is formed by a copper sleeve, a lead-out wire and the like, and when the automobile antifreeze solution is sufficient, the electrolytic reaction occurs and no alarm is given; when the automobile antifreeze liquid is in water shortage, the electrolytic reaction does not occur, and the water shortage alarm is given.
Drawings
Fig. 1 is a schematic structural view of an oxidation resistant electrode assembly according to an embodiment.
Fig. 2 is a schematic view of an electrode assembly including the oxidation resistant electrode assembly of fig. 1.
Detailed Description
The present invention is described in further detail below to enable those skilled in the art to more clearly understand the present invention.
The following examples are provided only for illustrating the present invention, but not for limiting the scope of the present invention. All other embodiments obtained by a person skilled in the art without any inventive work based on the specific embodiments in the creation of the present invention belong to the protection scope of the present invention.
The water level sensor electrode assembly of an embodiment may employ an electrode assembly having the following structure: the titanium electrode comprises a titanium electrode rod, a conductive metal piece and a lead-out wire, wherein the surface of the titanium electrode rod is provided with a conductive anti-oxidation coating, the non-free end of the titanium electrode rod is embedded into one end of the conductive metal piece, and the other end of the conductive metal piece is provided with the lead-out wire. By adopting the electrode assembly as an anode assembly, the condition that the surface of a conventional stainless steel electrode is oxidized and fails can be avoided.
Example 1
As shown in fig. 1, the present embodiment provides an oxidation-resistant electrode assembly including a titanium electrode rod 1, a copper sheath 2, and a lead wire 4.
Specifically, the surface of the titanium electrode bar 1 is provided with a conductive oxidation resistant coating, the non-free end of the titanium electrode bar is embedded into one end of the copper sleeve 2, and the other end of the copper sleeve 2 is provided with a lead-out wire 4. The length of the lead-out wires 4 can be adjusted as required. Preferably, the lead-out wire 4 is welded to the copper jacket 2.
In this embodiment, the conductive oxidation resistant coating is preferably a noble metal oxide coating, wherein the noble metal is gold, silver, and platinum group metals. An insoluble electrolytic electrode with excellent conductivity is formed by sintering noble metal oxide on the surface of a pure titanium rod and is used as an electrolytic reaction conductor of an automobile water level alarm sensor.
In the embodiment, the non-free end of the copper sleeve 2 and the titanium electrode bar 1 is preferably connected (riveted) by riveting, and the riveting connection is preferably coated with epoxy resin conductive adhesive to form a conductive adhesive layer. The riveted joint face is located to the conducting glue layer, can prevent to appear the electrolytic corrosion after copper sheathing 2 contacts water and lead to the condition of inefficacy.
Furthermore, the radial dimension of one end of the copper sleeve 2, which is connected with the non-free end of the titanium electrode bar 1, is larger than the radial dimension of the end welded with the lead-out wire, so that a protruding edge at the end part with high structural strength is formed, and a sufficient space is conveniently reserved for subsequent injection molding.
Example 2
As shown in fig. 2, the present embodiment provides an electrode assembly of a water level sensor, which includes an anode component and a cathode component, both of which adopt the anti-oxidation electrode assembly of embodiment 1, and two groups of electrode assemblies are embedded in an injection structure 3 in parallel to form a dual-electrode unit.
The two antioxidant electrode assemblies (novel electrodes) in the embodiment 1 are injected together through a nylon injection molding structure, namely, the two antioxidant electrode assemblies are injected into the automobile water level alarm sensor through an insert formed by secondary injection molding.
The injection structure 3 is preferably a nylon injection molded integrated insert structure. At the moment, 2 titanium electrode bars and the conductive noble metal oxide coating thereof are used as the cathode and the anode of the water level alarm sensor electrode assembly, the whole body has the characteristics of high strength, good corrosion resistance, high heat resistance and excellent conductivity, and the long-term reliability can be ensured.
The working principle of the water level sensor electrode assembly as the automobile water level alarm sensor electrode assembly is as follows:
the automobile water level alarm sensor adopts an electrolysis working principle, the nylon injection molding structure ensures that the relative positions of two electrodes are fixed and are used as a cathode and an anode of the automobile water level alarm sensor, when the antifreeze solution of an automobile water tank is reset, the two electrodes of the automobile water level alarm sensor are used as two electrodes of an electrolysis reaction in the antifreeze solution to form a current loop, and an automobile control unit does not alarm after detecting the current; when water is deficient or the electrode of the water level alarm sensor of the automobile fails, the electrolytic reaction does not occur, and the automobile control unit cannot detect the circuit current, so that water (liquid) deficiency alarm is carried out.
In addition, in other embodiments, the water level sensor electrode assembly can be provided with an anti-oxidation electrode assembly as an anode according to needs, and the other electrode adopts common metal as a cathode, so that the requirement of monitoring states is met.
In other embodiments, the electrode assembly of the water level alarm sensor of the automobile can also adopt a conductive metal stamping part (non-copper sleeve) riveted titanium electrode according to actual requirements, and the two components are injected into the electrode assembly of the water level alarm.
It should be noted that the above examples are only for further illustration and description of the technical solution of the present invention, and are not intended to further limit the technical solution of the present invention, and the method of the present invention is only a preferred embodiment, and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. An electrode assembly of a water level sensor is characterized by comprising an anode component and a cathode component, wherein the anode component and the cathode component are embedded into an injection molding structure in parallel;
the anode assembly comprises a titanium electrode bar, a conductive metal piece and a lead-out wire, wherein a conductive anti-oxidation coating is arranged on the surface of the titanium electrode bar, the non-free end of the titanium electrode bar is embedded into one end of the conductive metal piece, and the lead-out wire is arranged at the other end of the conductive metal piece.
2. The water level sensor electrode assembly of claim 1, wherein the conductive oxidation resistant coating is a conductive precious metal oxide coating.
3. The water level sensor electrode assembly according to claim 1, further comprising a conductive adhesive layer, wherein the conductive metal member is riveted with the non-free end of the titanium electrode bar, and the conductive adhesive layer is arranged on the riveted end face.
4. The water level sensor electrode assembly according to claim 3, wherein the conductive metal member is a copper sleeve, the copper sleeve is provided with an assembly inner hole, and the end part of the non-free end of the titanium electrode bar is embedded into the assembly inner hole and is riveted with the copper sleeve.
5. The water level sensor electrode assembly of claim 4, wherein the lead-out wire is welded to the copper sleeve.
6. The water level sensor electrode assembly as claimed in any one of claims 1 to 5, wherein the conductive metal member has a larger radial dimension at the end connected with the non-free end of the titanium electrode bar than at the end connected with the lead-out wire, so as to form an end-side convex edge structure.
7. The water level sensor electrode assembly according to any one of claims 1 to 5, wherein the electrode rods of the cathode component and the anode component are both titanium electrode rods with conductive anti-oxidation coatings on the surfaces.
8. The water level sensor electrode assembly of any one of claims 1 to 5, wherein the electrode rod of the cathode assembly is a non-titanium electrode rod.
9. The water level sensor electrode assembly of any one of claims 1 to 5, wherein the injection molded structure is a nylon injection molded integral insert structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592359.4U CN215677208U (en) | 2021-07-13 | 2021-07-13 | Water level sensor electrode assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592359.4U CN215677208U (en) | 2021-07-13 | 2021-07-13 | Water level sensor electrode assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215677208U true CN215677208U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121592359.4U Active CN215677208U (en) | 2021-07-13 | 2021-07-13 | Water level sensor electrode assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215677208U (en) |
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2021
- 2021-07-13 CN CN202121592359.4U patent/CN215677208U/en active Active
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