CN213336351U - Water level alarm sensor for automobile - Google Patents
Water level alarm sensor for automobile Download PDFInfo
- Publication number
- CN213336351U CN213336351U CN202021867439.1U CN202021867439U CN213336351U CN 213336351 U CN213336351 U CN 213336351U CN 202021867439 U CN202021867439 U CN 202021867439U CN 213336351 U CN213336351 U CN 213336351U
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- alloy electrode
- fixed seat
- alarm sensor
- water level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 239000003292 glue Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 18
- 230000002528 anti-freeze Effects 0.000 description 15
- 241000227287 Elliottia pyroliflora Species 0.000 description 5
- 230000009471 action Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
An automobile water level alarm sensor relates to a sensor, which comprises a fixed seat; the copper sleeve is injected into the fixed seat; and a titanium alloy electrode; the titanium alloy electrodes are arranged in parallel, and one end of each titanium alloy electrode is injected into the fixed seat and is riveted and fixed with the copper sleeve; an insulating sleeve is arranged between the fixed seat and the titanium alloy electrode, and the insulating sleeve is sleeved on the titanium alloy electrode and wraps part of the titanium alloy electrode; through the mode of addding insulating cover on every electrode, after the liquid level descends, two insulating covers but two electrodes will be connected to the water bridge that forms, effectively avoid the intercommunication between the electrode, stopped the influence of water bridge to detecting the precision.
Description
Technical Field
The utility model relates to a sensor specifically is car water level alarm sensor.
Background
The automobile water level alarm sensor is a sensor applied to monitoring automobile antifreeze liquid 200, and the working principle is as follows: two electrodes 10 of the sensor are placed in the automobile antifreeze liquid 200, electrified to generate electrolytic current and send a feedback signal to an external controller; when the consumption of the antifreeze liquid 200 is lower than the lowest position of the electrode 10, the two electrodes cannot be communicated, and the purpose of monitoring whether the antifreeze liquid 200 is sufficient is achieved by utilizing the principle.
However, in use, referring to fig. 1, when the liquid level of the antifreeze liquid 200 drops, residual antifreeze liquid 200 is adsorbed between the two electrodes 10 to form a water bridge 100, so that even if the liquid level of the antifreeze liquid 200 drops, a weak current is generated between the two electrodes 10 through the water bridge 100 formed by the antifreeze liquid 200, and therefore, a sensor is misjudged, and detection is inaccurate.
SUMMERY OF THE UTILITY MODEL
Not enough to above prior art exists, the utility model provides a new sensor structure to solve remaining antifreeze and form the water bridge between two electrodes, lead to detecting inaccurate problem.
The utility model provides a technical scheme as follows:
the water level alarm sensor for car includes
A fixed seat;
the copper sleeve is injected into the fixed seat; and
a titanium alloy electrode; the titanium alloy electrodes are arranged in parallel, and one end of each titanium alloy electrode is injected into the fixed seat and is riveted and fixed with the copper sleeve;
an insulating sleeve is arranged between the fixed seat and the titanium alloy electrode, and the insulating sleeve is sleeved on the titanium alloy electrode and wraps part of the titanium alloy electrode.
Further, part of the insulating sleeve is injected into the fixed seat.
Further, the insulating sleeve is made of ceramic materials.
Furthermore, the automobile water level alarm sensor also comprises a wire, wherein one end of the wire is injected into the fixed seat and is welded and fixed with the copper sleeve.
Furthermore, conductive silver adhesive is coated at the joint of the copper sleeve, the titanium alloy electrode and the lead.
Furthermore, a sealing head for sealing is arranged at the position where the lead is connected with the fixed seat.
Further, the end socket is made of ceramic materials.
The beneficial effect that adopts this technical scheme to reach does:
through the mode of addding insulating cover on every electrode, after the liquid level descends, two insulating covers but two electrodes will be connected to the water bridge that forms, effectively avoid the intercommunication between the electrode, stopped the influence of water bridge to detecting the precision.
Drawings
Fig. 1 is a schematic diagram of a conventional formation of a water bridge.
Fig. 2 is a schematic structural diagram of the first embodiment, showing the structure of the diversion trench.
Fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 2.
Fig. 4 is a schematic structural view of the second embodiment, showing a mounting structure of the insulating sheath.
Fig. 5 is a schematic cross-sectional view of B-B in fig. 4.
Wherein: the device comprises a 10 titanium alloy electrode, an 11 insulation sleeve, a 20 fixed seat, a 21 water diversion groove, a 22 threaded part, a 23 circular table part, a 30 copper sleeve, a 40 lead, a 100 water bridge and a 50 end enclosure.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
The embodiment provides a liquid level alarm sensor (also called a water level alarm sensor), which is mainly used for monitoring the state of the anti-freezing solution in an automobile water tank, and the water level state of the anti-freezing solution is transmitted to an external controller in real time by the alarm sensor.
Referring to fig. 2-3, the alarm sensor comprises a fixing base 20, and the fixing base 20 plays an absolute role in stabilizing and supporting; two electrodes are arranged on the lower end face of the fixed seat 20, the two electrodes are arranged in parallel, and one ends of the electrodes penetrate through the lower end face of the fixed seat 20 and are injected into the fixed seat 20; the two electrodes are connected and electrified with a power supply through leads, and the two electrodes are ensured to be in contact with the antifreeze solution, so that a loop is formed; when the liquid level descends, the loop is interrupted, and the liquid level of the antifreeze liquid is monitored by the scheme.
In the embodiment, the two electrodes are made of titanium alloy materials, and are called titanium alloy electrodes 10 for short, and the service life of the alarm sensor is ensured by utilizing the characteristics of good conductivity and corrosion resistance of the titanium alloy; and the titanium alloy electrode 10 has the additional advantage that the anode and the cathode of an external power supply are not needed to be distinguished, and the connection can be carried out at will.
The traditional electrode adopts the scheme that stainless steel materials are used as an anode and steel materials are used as a cathode, so that when an external power supply is connected, the anode of the power supply is ensured to be connected with the stainless steel anode, and the cathode of the power supply is ensured to be connected with the steel cathode so as to ensure the normal operation and the service life of the whole sensor; however, if the anode of the power supply is connected to the steel cathode and the cathode is connected to the stainless steel anode due to negligence of operators, the steel cathode is rapidly dissolved under the action of the anode of the power supply, so that the sensor is passivated, and the sensor fails; therefore, the traditional electrode scheme needs to strictly distinguish the positive electrode and the negative electrode and ensure the correct corresponding connection, but in the embodiment, the electrodes are made by utilizing the good conductive characteristic of the titanium alloy, so that the conductivity of the two electrodes is ensured, the corrosion-resistant characteristic of the titanium alloy is utilized, the positive electrode and the negative electrode of the power supply do not need to be distinguished, the normal communication of the sensor can be realized by the random operation of an operator, and the convenience is provided for the use of a user.
In order to avoid the influence of a water bridge formed by the water level reduction on the accuracy of the alarm sensor, in this embodiment, a diversion trench 21 is formed in the lower end surface of the fixing base 20, and the diversion trench 21 is located between the two titanium alloy electrodes 10 to divide the lower end surface of the fixing base 20 into two discontinuous planes.
Although residual antifreeze solution still exists and is adsorbed on the lower end surface of the fixed seat 20, due to the existence of the diversion groove 21, the antifreeze solution is adsorbed on two divided planes only and cannot form a water bridge to enable the two titanium alloy electrodes 10 to be communicated.
Optionally, the projected structure of the diversion trench 21 may be a square structure, an arc structure or other structures, but in order to ensure that the water bridge 100 is not formed, at least one vertical side surface should be arranged in the diversion trench 21; the adsorbed anti-freezing solution slides down under the action of self gravity due to the vertical side surface, so that the possibility of forming a water bridge by the anti-freezing solution is fundamentally avoided.
It is to utilize the formation of distributive groove 21 to stop the water bridge above the utility model discloses a first embodiment scheme, as the utility model discloses a second embodiment scheme can also make corresponding improvement on titanium alloy electrode 10 for the water bridge after forming can't communicate with arbitrary one titanium alloy electrode 10.
Specifically, referring to fig. 4-5, each titanium alloy electrode 10 is sleeved with an insulating sleeve 11, the insulating sleeve 11 is disposed between the fixing base 20 and the titanium alloy electrode 10, and it can be understood that the insulating sleeve 11 wraps the connecting position of the titanium alloy electrode 10 and the fixing base 20; therefore, even if a water bridge is formed on the lower end surface of the fixed seat 20, the water bridge cannot be contacted with any titanium alloy electrode 10 due to the action of the insulating sleeve 11, so that the possibility of communication between the two titanium alloy electrodes 10 is eliminated.
Meanwhile, the insulating sleeve 11 can further protect the position where the titanium alloy electrode 10 is connected with the fixing seat 20, and the phenomenon that the connecting part is loosened to enable the anti-freezing solution to permeate is avoided.
Certainly, the part of the insulating sleeve 11, which wraps the titanium alloy electrode 10, cannot be too short or too long, and in this embodiment, the part of the titanium alloy electrode 10, which extends out of the fixing seat 20, is wrapped by the insulating sleeve 11 by about half of the length, so that the monitoring of the liquid level of the antifreeze solution under normal conditions is not affected, and the possibility of connecting the water bridge and the titanium alloy electrode 10 can be effectively isolated.
The insulating sleeve 11 is made of a ceramic material in this embodiment in consideration of the fact that the insulating sleeve 11 is in contact with the antifreeze solution for a long time, and in order to ensure the stability of the connection position of the insulating sleeve 11, a portion of the insulating sleeve 11 should be molded in the fixing base 20.
In this embodiment, referring to fig. 2 to 5, a copper sleeve 30 corresponding to the titanium alloy electrode 10 is injection-molded in the fixing base 20, and a portion of the titanium alloy electrode 10 injection-molded in the fixing base 20 is riveted with the copper sleeve 30, so that the stability of current flow is ensured by the copper sleeve 30.
Optionally, the liquid level alarm sensor further includes a wire 40, one end of the wire 40 is molded in the fixing seat 20 and is welded and fixed with the copper bush 30, specifically, two leads are arranged inside the wire 40, each lead is welded on the copper bush 30, and each lead is connected with the corresponding titanium alloy electrode 10 through the copper bush 30, so as to realize stable transmission of current.
Meanwhile, in order to ensure the safety of the alarm sensor during monitoring and avoid electric shock accidents, the end socket 50 with a sealing effect is arranged at the position where the lead 40 is connected with the fixing seat 20, the end socket 50 is used for sealing the connection part of the lead to avoid the permeation of water vapor, so that no electric leakage phenomenon is ensured when the alarm sensor works, and the electric shock accidents are avoided.
The seal head 50 is a plastic seal head which is easy to shape and can effectively contract to form a small gap during molding so as to avoid electric leakage; in this embodiment, in order to achieve the purpose of insulation and prolong the service life, the end socket 50 is made of a ceramic material.
In this embodiment, in order to ensure the stability of the joint between the copper bush 30 and the titanium alloy electrode 10 and the lead wire 40 and ensure the integrity of the electrical conductivity of the joint, conductive silver paste is coated on the joint between the copper bush 30 and the titanium alloy electrode 10 and the lead wire 40.
In order to facilitate the installation of the alarm sensor, a threaded portion 22 for installation is provided on the outer circumferential surface of the fixed seat 20, where the threaded portion 22 is an external thread, through which the alarm sensor can be directly installed on a wall (not shown) of a water tank of an automobile, and in order to achieve the fixation, a circular table portion 23 is further provided at the upper end of the threaded portion 22, the circular table portion 23 is sleeved on the fixed seat 20, and the diameter of the circular table portion 23 is larger than that of the external thread.
In a specific using process, the external thread is continuously screwed into the wall of the water tank until the circular table part 23 is abutted to the outer wall of the water tank, so that locking and fixing are realized.
Meanwhile, in order to facilitate the fixing, the outer peripheral surface of the circular table portion 23 is provided with at least one pair of flat surfaces which are opposite to each other, so that the alarm sensor can be screwed on the flat surfaces by the action of a tool.
In this embodiment, the circular truncated cone portion 23 is a hexagonal circular truncated cone, and can be screwed and fixed on a plane by the action of a hexagonal wrench.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The water level alarm sensor for the automobile is characterized by comprising
A fixed seat (20);
the copper sleeve (30) is injected into the fixed seat (20); and
a titanium alloy electrode (10); the titanium alloy electrodes (10) are arranged in parallel, one end of each titanium alloy electrode (10) is injected into the fixed seat (20) and is riveted and fixed with the copper sleeve (30);
an insulating sleeve (11) is arranged between the fixed seat (20) and the titanium alloy electrode (10), and the insulating sleeve (11) is sleeved on the titanium alloy electrode (10) and wraps part of the titanium alloy electrode (10).
2. The water level alarm sensor for automobile as claimed in claim 1, wherein a portion of the insulating sleeve (11) is injection molded in the fixing base (20).
3. The water level alarm sensor of claim 2, wherein the insulating sleeve (11) is made of a ceramic material.
4. The water level alarm sensor for the automobile as claimed in claim 1, further comprising a lead (40), wherein one end of the lead (40) is injection molded in the fixing seat (20) and is welded and fixed with the copper sleeve (30).
5. The alarm sensor for water level of automobile according to claim 4, wherein the connection of copper sleeve (30) with titanium alloy electrode (10) and wire (40) is coated with conductive silver glue.
6. The water level alarm sensor for the automobile as claimed in claim 4, wherein a sealing head (50) for sealing is arranged at the position where the lead (40) is connected with the fixed seat (20).
7. The alarm sensor for water level of automobile as claimed in claim 6, wherein the sealing head (50) is made of ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021867439.1U CN213336351U (en) | 2020-08-31 | 2020-08-31 | Water level alarm sensor for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021867439.1U CN213336351U (en) | 2020-08-31 | 2020-08-31 | Water level alarm sensor for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213336351U true CN213336351U (en) | 2021-06-01 |
Family
ID=76101596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021867439.1U Expired - Fee Related CN213336351U (en) | 2020-08-31 | 2020-08-31 | Water level alarm sensor for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213336351U (en) |
-
2020
- 2020-08-31 CN CN202021867439.1U patent/CN213336351U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210601 |