CN116699168A - Self-cleaning electromagnetic sensor - Google Patents
Self-cleaning electromagnetic sensor Download PDFInfo
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- CN116699168A CN116699168A CN202310643196.5A CN202310643196A CN116699168A CN 116699168 A CN116699168 A CN 116699168A CN 202310643196 A CN202310643196 A CN 202310643196A CN 116699168 A CN116699168 A CN 116699168A
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- electrode
- rod body
- self
- electrode plate
- electromagnetic sensor
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- 238000004140 cleaning Methods 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000013535 sea water Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 6
- 239000003973 paint Substances 0.000 description 5
- 238000000227 grinding Methods 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000003097 mucus Anatomy 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010027339 Menstruation irregular Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a self-cleaning electromagnetic sensor, comprising: the device comprises a rod body, an electrode plate assembly, an iron core coil, a guide sealing sleeve, a watertight connector, a junction box and a limiting plate; the electrode plate assembly includes an electrode plate, a first electrode, and a second electrode; one end of the rod body is connected with the top of the electrode plate, and the other end of the rod body is connected with the watertight connector through the limiting plate and the junction box in sequence; the guide sealing sleeve can be sleeved on the outer wall of the rod body in a relatively sliding manner; the iron core coil is arranged in the cavity of the electrode plate and is electrically connected with the watertight connector; the first electrode and the second electrode are arranged on the outer side of the bottom of the electrode plate; the first electrode is electrically connected with the watertight connector through a first electrode lead; the second electrode is electrically connected with the watertight connector through a second electrode lead; the electrode plate and the rod body are made of zirconia ceramics. The electromagnetic sensor can prevent marine organisms from being attached to the electromagnetic sensor to the greatest extent, so that the influence of the marine organisms on the detection speed of the electromagnetic sensor is avoided, and the smoothness of the plugging of the electromagnetic sensor is ensured.
Description
Technical Field
The invention relates to the technical field of ship speed measuring devices, in particular to a self-cleaning electromagnetic sensor.
Background
According to faraday's law of electromagnetic induction, an alternating magnetic field is established by the sensor, which is stationary relative to the vessel and resides in the sea water. When the ship moves, the sea water inevitably cuts the magnetic force lines of the built magnetic field. As a continuous conductive medium, an induced potential will be generated in any closed loop of seawater, which is picked up by the electrodes of the sensor, expressed by:
e＝BVL
wherein:
e-speed potential;
b-magnetic field strength;
v-the speed of the ship;
l-equivalent electrode spacing.
In the case where B and L are known constants, the speed potential is detected, and the speed of the ship can be obtained.
The traditional electromagnetic sensor for ships is required to measure the speed under the condition of not damaging the flow field of the ship body, so that the electromagnetic sensor basically adopts a plane electromagnetic sensor and extends out of the bottom of the ship by 5-10 mm.
The traditional electromagnetic sensor generally adopts an aluminum bronze (QAl 9-4) rod body and an electrode plate component, the electrode plate installed on the electrode is generally made of an epoxy laminated glass cloth plate or other nonmetallic materials, the metal rod body, the nonmetallic electrode plate and the metal electrode are adhered into a whole by epoxy resin, if marine organisms adhere around the electrode, the electrode is influenced to pick up induced electromotive force (the pick-up value is lower than a theoretical value), and therefore the detection speed is lower. If the marine creature is cleaned up at an irregular period, the marine creature can grow rapidly with the lapse of time, so that the measured speed value of the electromagnetic sensor is further reduced until the measured speed is severely distorted.
In addition, the electromagnetic sensor is installed through the sea valve, the electromagnetic sensor is required to be pulled up to a mechanical limit position when being detached, the sea valve is closed, and finally the electromagnetic sensor is taken out. As marine organisms and dirt adhere to the rod body, the rod body becomes slightly thicker and the smoothness is reduced, so that the plugging operation is difficult.
Therefore, how to provide an electromagnetic sensor with a self-cleaning function is a problem to be solved by those skilled in the art.
Disclosure of Invention
Accordingly, the present invention is directed to a self-cleaning electromagnetic sensor, which can prevent marine organisms from adhering to the electromagnetic sensor to the greatest extent, thereby avoiding the influence of the marine organisms on the detection speed of the electromagnetic sensor and ensuring the smooth plugging and unplugging of the electromagnetic sensor.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a self-cleaning electromagnetic sensor comprising: the pole body, the electrode plate component, the iron core coil and the watertight connector;
the electrode plate assembly includes an electrode plate, a first electrode, and a second electrode;
one end of the rod body is connected with the top of the electrode plate, and the other end of the rod body is provided with a watertight connector;
the iron core coil is arranged in the cavity of the electrode plate and is electrically connected with the watertight connector;
the first electrode and the second electrode are arranged on the outer side of the bottom of the electrode plate;
the first electrode is electrically connected with the watertight connector through a first electrode wire;
the second electrode is electrically connected with the watertight connector through a second electrode lead;
the electrode plate and the rod body are made of zirconia ceramics.
Preferably, the self-cleaning sensor further comprises a guide sealing sleeve, wherein the guide sealing sleeve comprises a guide sleeve, a square ring for a piston rod, a self-lubricating bearing and a single-lip combined dust-proof ring;
the guide sealing sleeve can be sleeved on the outer wall of the rod body in a relatively sliding manner;
a through hole is formed in the middle of the guide sleeve;
the guide sleeve is sequentially provided with a first annular groove, a second annular groove and a third annular groove along the axis;
the first annular groove is close to the watertight connector; the third annular groove is adjacent to the electrode plate assembly;
the single-lip combined dust ring is embedded in the first annular groove;
the piston rod is embedded in the second annular groove by a square ring;
the self-lubricating bearing is embedded in the third annular groove.
Preferably, the iron core coil comprises an iron core, a coil framework, a coil, a shielding copper foil and a wiring board;
and a positioning groove is formed in the inner side of the bottom of the electrode plate, and the iron core is arranged in the positioning groove.
Preferably, the glass cloth adhesive tape is wound on the outer wall of the wound coil, and insulating paint dipping treatment is carried out.
Preferably, two through holes are formed in the bottom of the electrode plate and are used for placing the first electrode and the second electrode respectively, one ends of the two electrodes are fixed in the through holes, and the other ends of the two electrodes are exposed outside.
Preferably, the two through hole surfaces, the first electrode surface and the second electrode surface are roughened.
Preferably, one end of the rod body is fixedly connected with the top of the side wall of the electrode plate.
Preferably, one end of the rod body is fixedly connected with the top of the side wall of the electrode plate by adopting threads.
Preferably, a sealing ring is adopted to assist in sealing between the contact surfaces of the electrode plate and the rod body.
Preferably, the thread is further sealed and fixed by an adhesive.
Preferably, the electrode plate, the first electrode and the second electrode are sealed by a sintering sealing process.
Preferably, the substrate of the self-lubricating bearing is provided with a plurality of holes, and the holes are embedded with solid lubricant.
Preferably, the square ring for the piston rod is composed of a sealing slip ring and an O-shaped sealing ring; the single-lip combined dust ring consists of a single-lip dust scraping ring and an O-shaped sealing ring.
Preferably, the rod body is of a cylindrical structure, and an adhesive is filled in an inner cavity of the rod body and used for solidifying the rod body, the iron core coil and the electrode plate assembly into an integrated structure.
Preferably, the self-cleaning sensor further comprises a limiting plate, the limiting plate is fixedly sleeved on the rod body, and the plate surface of the limiting plate is perpendicular to the outer side wall of the rod body.
Preferably, the self-cleaning sensor further comprises a junction box, and the rod body is connected with the watertight connector through the limiting plate and the junction box in sequence.
Compared with the prior art, the self-cleaning electromagnetic sensor provided by the invention can prevent marine organisms from adhering to the electromagnetic sensor to the greatest extent, so that the influence of the marine organisms on the detection speed of the electromagnetic sensor is avoided, and the smoothness of the plugging of the electromagnetic sensor is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of a self-cleaning electromagnetic sensor of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic diagram of the structure of an iron core coil in the self-cleaning electromagnetic sensor of the present invention;
FIG. 4 is a cross-sectional view of an iron core coil in the self-cleaning electromagnetic sensor of the present invention;
FIG. 5 is a cross-sectional view of a guide seal cartridge in a self-cleaning electromagnetic sensor of the present invention;
fig. 6 is a cross-sectional view of an electrode plate assembly in a self-cleaning electromagnetic sensor according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-6, an embodiment of the present invention discloses a self-cleaning electromagnetic sensor, comprising: a rod body 1, an electrode plate assembly 2, an iron core coil 3 and a watertight connector 5;
the electrode plate assembly 2 includes an electrode plate 20, a first electrode 21, and a second electrode 22;
in this embodiment, the electrode plate 20 is similar in structure to a bowl, and a cavity is defined by the annular side wall and the circular bottom wall.
One end of the rod body 1 is connected with the top (the top of the side wall) of the electrode plate 20, and the other end is provided with a watertight connector 5;
the iron core coil 3 is arranged in the cavity of the electrode plate 20 and is electrically connected with the watertight connector 5;
the first electrode 21 and the second electrode 22 are both disposed outside the bottom (bottom wall) of the electrode plate 20;
the first electrode 21 is electrically connected with the watertight connector 5 through a first electrode wire;
the second electrode 22 is electrically connected with the watertight connector 5 through a second electrode wire;
the electrode plate 20 and the rod body 1 are made of zirconia ceramics to realize an automatic cleaning function.
The electrode plate 20 is prepared by using zirconia ceramics (the zirconia ceramics have the advantages of high hardness, good wear resistance, high toughness, low friction coefficient, good corrosion resistance and the like) as raw materials. From the viewpoint of shielding effectiveness, zirconia ceramics as nonmetallic materials have no shielding effect on electromagnetic signals and do not affect the internal layout at all.
Furthermore, the electrode plate adopts the zirconia ceramic after grinding, the surface finish of the zirconia ceramic electrode plate after grinding is higher, can reach more than 9, is in a mirror surface shape, is extremely smooth and has low surface energy; its low surface energy prevents the initial attachment of marine organisms. The initial stage of the attachment of marine organisms is realized by the secretion of mucus which wets the surface to be attached, and the wettability of mucus to a low surface energy surface is poor, so that the contact angle is small, and the attachment or the weak attachment is difficult. Even if a small amount of marine organisms adhere, the marine organism can be easily flushed by surge or when the ship sails, the self-cleaning effect is achieved, thereby preventing the marine organisms around the electrode from growing and avoiding the influence of the marine organisms on the speed measurement.
The zirconia ceramic rod body subjected to grinding is also adopted, and the zirconia ceramic rod body subjected to grinding has higher surface finish and smaller friction coefficient, so that smooth insertion and extraction of the electromagnetic sensor are ensured. Meanwhile, the surface energy is low, so that the initial attachment of marine organisms can be prevented, and the smoothness of the surface of the rod body is ensured.
In one embodiment, the self-cleaning sensor further comprises a guide sealing sleeve 4, wherein the guide sealing sleeve 4 comprises a guide sleeve 40, a square ring 41 for a piston rod, a self-lubricating bearing 42 and a single-lip combined dust ring 43;
the guide sealing sleeve 4 can be sleeved on the outer wall of the rod body 1 in a relatively sliding manner;
the guide sealing sleeve 4 is fixedly arranged on the ship bottom sea valve, so that the sealing and guiding of the reciprocating motion during the rod body inserting and extracting action are ensured;
a through hole is formed in the middle of the guide sleeve 40;
the guide sleeve 40 is provided with a first annular groove, a second annular groove and a third annular groove along the axis in sequence;
the first annular groove is adjacent to the watertight connector 5; the third annular groove is adjacent to the electrode plate assembly 2;
the single-lip combined dust ring 43 is embedded in the first annular groove;
the piston rod is embedded in the second annular groove by a square ring 41;
the self-lubricating bearing 42 is embedded in the third annular groove.
In this embodiment, the self-lubricating bearing 42 has a plurality of holes formed in its base body, and a solid lubricant is embedded in the holes.
Specific: the self-lubricating bearing is characterized in that a plurality of holes which are orderly arranged and have proper sizes are formed in a bronze bearing matrix (the bronze bearing matrix plays a role of bearing load and guides and protects the reciprocating motion of the rod body), and a forming solid lubricant with self-lubricating performance is embedded in the holes.
In this embodiment, the square ring 41 for piston rod is composed of a sealing slip ring filled with polytetrafluoroethylene and an O-ring; the sealing surface has an automatic elastic compensation function after being worn, the friction resistance is small, and the tightness of the rod body during reciprocating motion is ensured;
the single-lip combined dust ring 43 consists of a single-lip dust scraping ring filled with polytetrafluoroethylene material and an O-shaped sealing ring; the O-shaped sealing ring provides elasticity, ensures that the lip of the dustproof ring is uniformly clung to the surface of the rod body, and plays roles in scraping impurities on the surface of the rod body and the like.
The iron core coil 3 in one embodiment comprises an iron core 30, a coil framework 31, a coil 32, a shielding copper foil 33 and a wiring board 34; with this structure, a stable magnetic field can be released into the sea water so that the speed of the ship can be detected by the magnetic field.
A positioning groove is formed in the inner side of the bottom (bottom wall) of the electrode plate 20, and the iron core 30 is disposed in the positioning groove. And the accurate positioning between the iron core coil and the electrode is ensured by adopting medium clearance positioning matching.
In this embodiment, a glass cloth tape is wound on the outer wall of the wound coil 3, and vacuum paint dipping treatment is performed by epoxy insulating paint. After the paint is soaked, the insulating paint fills all gaps of the winding insulation, the heat conduction performance is greatly enhanced, and solid insulation with high pressure resistance is formed, so that the winding insulation performance is improved, and the moisture resistance and the chemical stability of the winding insulation are improved.
It should be noted that: since the magnitude of the magnetic field strength decreases with the increase of the distance between the electrode surface and the exciting coil, the first and second electrodes are required to be disposed as close to the core coil 3 as possible in the design.
In one embodiment, two through holes are formed at the bottom of the electrode plate 20, and are respectively used for placing the first electrode 21 and the second electrode 22, wherein one ends of the two electrodes are fixed in the through holes, and the other ends of the two electrodes are exposed outside.
In this embodiment, the two through hole surfaces, the first electrode surface and the second electrode surface are roughened, which is favorable for physical attachment, and a transitional oxide layer is formed on the surface, which is also favorable for chemical adhesion.
In a certain embodiment, one end of the rod body 1 is fixedly connected with the top of the side wall of the electrode plate 20 by adopting a thread, the thread is further sealed and fixed by an adhesive, and a sealing ring is adopted for auxiliary sealing between the contact surface of the electrode plate 20 and the rod body 1. The embodiment adopts a multistage sealing mode to ensure the sealing reliability, thereby ensuring the service life of the electromagnetic sensor and reducing the use error. In addition, in order to avoid influencing the sealing performance of the sealing ring, normal-temperature bonding and filling and sealing modes are adopted in the process.
In one embodiment, the electrode plate 20, the first electrode 21 and the second electrode 22 are sealed by a frit seal process. This way, the tightness and mutual insulation between the first electrode 21, the second electrode 22 and the electrode plate 20 can be ensured, so that the tightness and the insulation of the electromagnetic sensor in the self-cleaning environment are ensured to be good, and the electromagnetic sensor is more resistant to seawater corrosion.
In a certain embodiment, the rod body 1 is in a cylindrical structure, and an inner cavity of the rod body 1 is filled with an adhesive, so that the rod body 1, the iron core coil 3 and the electrode plate assembly 2 are solidified into an integral structure. The mode can greatly improve the integral mechanical strength of the sensor, increase the structural strength and strengthen the pressure resistance.
Furthermore, the rod body 1 adopts a column form, and the diameter-changing part of the opening of the inner cavity of the rod body 1 adopts a round corner for transition, so that stress concentration is avoided.
In an embodiment, the self-cleaning sensor further comprises a limiting plate 7, the limiting plate 7 is fixedly sleeved on the rod body 1, and the plate surface of the limiting plate 7 is perpendicular to the outer side wall of the rod body 1.
In one embodiment, the self-cleaning sensor further comprises a junction box 6, and the rod body 1 is connected with the watertight connector 5 through the limiting plate 7 and the junction box 6 in sequence. The limiting plate 7 is tightly pressed on the rod body 1 by the junction box 6, and the scheme can limit the relative position of the ship and the electrode, so that the accuracy of measurement is ensured.
In this embodiment, the watertight connector 5 is mounted on the top end of the junction box 6 by a screw, the junction box 6 is in threaded connection with the rod body 1, and the junction box 6 and the rod body 1 are embedded with a limiting plate 7. The limiting plate 7 is pressed against the rod body 1 when the terminal box 6 is screwed down.
The embodiment of the invention provides a self-cleaning electromagnetic sensor, wherein a magnetic field is generated through an iron core coil, a first electrode and a second electrode are exposed to sea water, a ship moves, the sea water moves relative to the ship, a magnetic induction line is cut, and the two electrodes pick up a signal which is proportional to the relative water flow speed and is generated when the sea water cuts magnetic force lines, so that the speed of the ship is detected.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A self-cleaning electromagnetic sensor, comprising: the device comprises a rod body (1), an electrode plate assembly (2), an iron core coil (3) and a watertight connector (5);
the electrode plate assembly (2) comprises an electrode plate (20), a first electrode (21) and a second electrode (22);
one end of the rod body (1) is connected with the top of the electrode plate (20), and the other end of the rod body is provided with a watertight connector (5);
the iron core coil (3) is arranged in the cavity of the electrode plate (20) and is electrically connected with the watertight connector (5);
the first electrode (21) and the second electrode (22) are arranged on the outer side of the bottom of the electrode plate (20);
the first electrode (21) is electrically connected with the watertight connector (5) through a first electrode wire;
the second electrode (22) is electrically connected with the watertight connector (5) through a second electrode lead;
the electrode plate (20) and the rod body (1) are made of zirconia ceramics.
2. Self-cleaning electromagnetic sensor according to claim 1, characterized in that it further comprises a guide sealing sleeve (4), said guide sealing sleeve (4) comprising a guide sleeve (40), a square ring (41) for the piston rod, a self-lubricating bearing (42) and a single-lip combined dust ring (43);
the guide sealing sleeve (4) can be sleeved on the outer wall of the rod body (1) in a sliding manner;
the middle part of the guide sleeve (40) is provided with a through hole;
the guide sleeve (40) is sequentially provided with a first annular groove, a second annular groove and a third annular groove along the axis;
-said first annular groove is adjacent to said watertight connector (5); the third annular groove is adjacent to the electrode plate assembly (2);
the single-lip combined dust ring (43) is embedded in the first annular groove;
the piston rod is embedded in the second annular groove by a square ring (41);
the self-lubricating bearing (42) is embedded in the third annular groove.
3. Self-cleaning electromagnetic sensor according to claim 1, characterized in that the core coil (3) comprises a core (30), a coil former (31), a coil (32), a shielding copper foil (33), a wiring board (34);
a positioning groove (200) is formed in the inner side of the bottom of the electrode plate (20), and the iron core (30) is arranged in the positioning groove.
4. Self-cleaning electromagnetic sensor according to claim 1, characterized in that the bottom of the electrode plate (20) is provided with two through holes for placing the first electrode (21) and the second electrode (22), respectively, both of which have one end fixed in the through holes and the other end exposed outside.
5. Self-cleaning electromagnetic sensor according to claim 1, characterized in that one end of the rod body (1) is fixedly coupled to the top of the side wall of the electrode plate (20).
6. Self-cleaning electromagnetic sensor according to claim 1, characterized in that the electrode plate (20), the first electrode (21) and the second electrode (22) are sealed by a sinter sealing process.
7. Self-cleaning electromagnetic sensor according to claim 2, characterized in that the self-lubricating bearing (42) is provided with holes in the base body, in which holes solid lubricant is embedded.
8. Self-cleaning electromagnetic sensor according to claim 2, characterized in that the square ring (41) for the piston rod consists of a sealing slip ring and an O-ring; the single-lip combined dust ring (43) is composed of a single-lip dust scraping ring and an O-shaped sealing ring.
9. Self-cleaning electromagnetic sensor according to claim 1, characterized in that the rod body (1) is of a cylindrical structure, and the inner cavity of the rod body (1) is filled with an adhesive for curing the rod body (1), the iron core coil (3) and the electrode plate assembly (2) into an integral structure.
10. Self-cleaning electromagnetic sensor according to claim 1, characterized in that it further comprises a limiting plate (7);
the limiting plate (7) is fixedly sleeved on the rod body (1), and the plate surface of the limiting plate (7) is perpendicular to the outer side wall of the rod body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310643196.5A CN116699168A (en) | 2023-06-01 | 2023-06-01 | Self-cleaning electromagnetic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310643196.5A CN116699168A (en) | 2023-06-01 | 2023-06-01 | Self-cleaning electromagnetic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116699168A true CN116699168A (en) | 2023-09-05 |
Family
ID=87831994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310643196.5A Pending CN116699168A (en) | 2023-06-01 | 2023-06-01 | Self-cleaning electromagnetic sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116699168A (en) |
-
2023
- 2023-06-01 CN CN202310643196.5A patent/CN116699168A/en active Pending
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