WO2011004933A1 - Capteur d'huile moteur pour un moteur à combustion interne - Google Patents

Capteur d'huile moteur pour un moteur à combustion interne Download PDF

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Publication number
WO2011004933A1
WO2011004933A1 PCT/KR2009/004312 KR2009004312W WO2011004933A1 WO 2011004933 A1 WO2011004933 A1 WO 2011004933A1 KR 2009004312 W KR2009004312 W KR 2009004312W WO 2011004933 A1 WO2011004933 A1 WO 2011004933A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
engine oil
plug
conductor
engine
Prior art date
Application number
PCT/KR2009/004312
Other languages
English (en)
Korean (ko)
Inventor
박영현
Original Assignee
인지컨트롤스주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 인지컨트롤스주식회사 filed Critical 인지컨트롤스주식회사
Publication of WO2011004933A1 publication Critical patent/WO2011004933A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
    • G01F23/164—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid using a diaphragm, bellow as transmitting element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10—Indicating devices; Other safety devices
    • F01M11/12—Indicating devices; Other safety devices concerning lubricant level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/24—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
    • G01F23/241—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid for discrete levels
    • G01F23/242—Mounting arrangements for electrodes

Definitions

  • the present invention relates to an engine oil detector for an internal combustion engine, and more particularly, to an engine oil detector for an internal combustion engine for switching a warning lamp by a movable member.
  • This internal combustion engine ie the engine, is driven by a piston 1 that rises vertically as the fuel and air flowing through the valve 2 ignite, as shown in FIG. 1.
  • the piston 1 has a vertical linear motion is converted into a rotational motion by the crank shaft (3).
  • the piston 1 moves smoothly as the engine oil stored in the oil pan 4 is supplied by the oil pump 5 without difficulty. At this time, the engine oil is circulated through the circulation pipe 6 after the foreign matter is filtered through the oil filter (7). This engine oil is confirmed the remaining amount through the bar level gauge (9) inserted into the gauge tube (8).
  • the engine is equipped with an engine oil detector in the circulation pipe (6).
  • the engine oil detector is connected to the connector housing 12 and the end by the pressure of the engine oil flowing through the oil hole 13a of the end cap 13 when the oil pump is operated together with the engine.
  • the diaphragm DP installed in a horizontal state between the caps 13 pushes the plunger 19 while forming an arch.
  • the ground ring 16 fitted to the plunger 19 is spaced apart from the terminal plate 18 on the O-ring 18a to which the cathode current is applied and the grounded conducting plate 17. Therefore, the ground ring 16 is spaced apart from the current carrying plate 17 in a grounded state with the coil spring 15 to which the anode current of the terminal pin 14 is applied. That is, the ground ring 16 blocks the flow of current while being spaced apart from the current carrying plate 17.
  • the ground ring 16 blocks the flow of current to prevent the engine oil warning lamp installed in the vehicle from being turned on.
  • the ground ring 16 is grounded with the conduction plate 17 while descending by the elastic force of the coil spring 15 as shown in FIG. 3 when the engine oil is insufficient and the pressure of the engine oil is attenuated.
  • the ground ring 16 descends with the plunger 19 as shown. Accordingly, the current applied from the terminal pin 14 is applied to the current carrying plate 17 through the ground ring 16. Therefore, the engine oil warning lamp installed inside the vehicle lights up to warn that the engine oil is insufficient.
  • the terminal plate 18 is fixed between the gap between the connector housing 12 and the end cap 13 as shown in FIG. 3, the terminal plate 18 is fixed to the water flowing between the gap between the connector housing 12 and the end cap 13. As a result, not only the performance and durability of the terminal plate 18 are deteriorated, but also there is a problem in that current is shorted.
  • the present invention has been made to solve the above-mentioned conventional problems, and a pair of terminal pins to which the positive and negative currents are respectively applied are provided, and a movable member for energizing the terminal pins while selectively contacting the terminal pins is provided.
  • the purpose of the present invention is to provide an engine oil detector for an internal combustion engine that can simplify the configuration and stably apply current.
  • an object of the present invention is to provide an engine oil detector for an internal combustion engine, in which a movable member is movably installed inside the case to protect the movable member in a watertight state.
  • Another object of the present invention is to provide an engine oil detector for an internal combustion engine having a structure in which a pair of terminal pins can be press-fitted into the inside of a case and fixedly assembled.
  • another object of the present invention is to provide an engine oil detector for an internal combustion engine having a structure in which a part of the terminal pins can be stably grounded with a movable member.
  • Another object is to provide an engine oil winding for an internal combustion engine provided with a mechanism for preventing the movable member from rotating.
  • Engine oil detector for an internal combustion engine for achieving the above object, in the detector for detecting the residual amount of engine oil supplied to the internal combustion engine, a partition is provided inside one side, the engine oil flows into the other side Hollow case having an oil ball to be; A cylindrical plug embedded in the case and having a pair of terminal pins fixed at one side thereof in a penetrating state through a partition wall of the case; Conductors are provided for conducting a current applied to the terminal pins while being grounded with the pair of terminal pins fixed to the plug, and selectively moving the conductors with the terminal pins while moving according to the pressure of the engine oil in the case.
  • the plug further includes a bending protrusion extending from the end of the terminal pin in a bent state and protruding outward from the plug to be grounded with a conductor of the moving member.
  • the present invention may further comprise a fastener for fixing the terminal pin to the partition wall of the housing in a prefabricated manner.
  • the fastener may be formed of, for example, a wedge protrusion protruding from the outside of the terminal pin penetrating the partition wall and wedge-fixed to the partition wall by interference fit.
  • the moving member is, for example, inserted into the cylindrical plug embedded in the case and supported by the elastic body, and a conductor that is grounded with terminal pins is fixed integrally on one side facing the end of the terminal pin, and the engine A ring-shaped sleeve moving along the axial direction of the plug by the pressure of oil; Fastening means for integrally fixing the conductor to the sleeve; It is preferable to include a pressure transfer unit for transmitting the pressure of the engine oil to the sleeve in which the conductor is fixed by the fixing means.
  • the pressure transfer unit may include, for example, a plunger supporting one side of the sleeve; It is preferable to include a diaphragm for shielding the other side of the case in which the engine oil is introduced in close contact with the plunger and moving the plunger while deforming by the pressure of the engine oil.
  • the fixing means may be formed of a diffusion protrusion protruding from the sleeve and having an end portion spreading through the conductor.
  • the moving member is, for example, the moving member is, for example, the engine is in a state in which one side is grounded with the terminal pin at the lower portion of the terminal pin while the conductor is fixed to one side, and elastically supported by the elastic body A plunger for selectively grounding the conductor with the terminal pin while moving by the pressure of the oil;
  • the diaphragm may be configured to shield the other side of the case into which the engine oil is introduced while being in close contact with the plunger and move the plunger while deforming by the pressure of the engine oil.
  • the present invention needs to further comprise rotation preventing means for preventing the rotation of the sleeve by movably constraining a portion of the sleeve that is inserted into the plug and moves.
  • the anti-rotation means includes, for example, a key protruding from the sleeve; It may be configured to include a guide rail of the groove shape which is formed in the plug and is splined to the key and guides the key along the movement path of the sleeve.
  • the engine oil detector for an internal combustion engine according to the present invention as described above is applied to a current through a pair of terminal pins, and is simply configured so that the current of the terminal pins is energized through a conductor provided in the sleeve of the moving member, thereby reducing manufacturing costs. Not only can the productivity be improved by the convenience of the manufacturing process, and furthermore, through the simplification of the configuration there is an effect that can enable the weight of the product.
  • the sleeve of the moving member is not only smoothly moved by the rotation preventing means consisting of the key and the guide rail, but also has the effect of preventing the sleeve from rotating.
  • FIG. 1 is a perspective view showing the configuration of a general engine
  • FIG. 2 is a longitudinal sectional view showing a state before operation of a general engine oil detector
  • FIG. 3 is a longitudinal sectional view showing an operating state of the engine oil detector shown in FIG. 2;
  • FIG. 4 is a longitudinal sectional view showing a state before operation of an engine oil detector for an internal combustion engine according to an embodiment of the present invention
  • FIG. 5 is a perspective view of some components shown in FIG. 4; FIG.
  • FIG. 6 is an exploded perspective view of the plug and sleeve shown in FIG. 4; FIG. And
  • FIG. 7 is a longitudinal cross-sectional view showing a state of use of the engine oil detector shown in FIG.
  • FIG. 4 is a longitudinal cross-sectional view showing a state before operation of the engine oil detector for an internal combustion engine according to an embodiment of the present invention.
  • FIG. 5 is a perspective view showing some components shown in FIG. 4.
  • 6 is an exploded perspective view illustrating the plug and the sleeve illustrated in FIG. 4
  • FIG. 7 is a longitudinal cross-sectional view illustrating a state of use of the engine oil detector illustrated in FIG. 4.
  • a plastic plug 60 having a pair of terminal pins 62 inserted into the hollow case 50 is fixed thereto.
  • the moving member described later having a conductor 61 is movable therein, and an elastic body 70 having a coil spring shape is embedded therein.
  • the case 50 is composed of a connector housing 52 in which a pair of terminal pins 62 are fixed as shown, and an end cap 54 having an oil hole 54a flowing in the engine oil.
  • the connector housing 52 has a partition wall 52a on which one pair of terminal pins 62 are fixed as shown.
  • End cap 54 is integrally coupled to the other side of the connector housing 52 through the processing of the curling (54b), as shown, to close shield the other side of the connector housing (52). Therefore, the case 50 has a partition 52a and an oil hole 54a on one side and the other side by the connector housing 52 and the end cap 54 which are integrally coupled.
  • the plug 60 is formed in a cylindrical shape as shown, and is integrated with the connector housing 52 as the terminal pins 62 are fixed to the partition wall 52a.
  • the pair of terminal pins 62 are respectively supplied with positive and negative currents, and are assembled to the partition walls 52a while penetrating through the terminal holes 52a 'formed in the partition walls 52a as shown in an enlarged view "A". Is fixed.
  • the terminal pin 62 is formed on the partition wall 52a by a fastener formed of a triangular wedge protrusion 62b that protrudes outward and is fixed to the inner circumferential surface of the terminal hole 52a 'as enlarged. It is fixed.
  • the pair of terminal pins 62 have a bending protrusion 62a that is extended from the lower end and is bent to both sides as shown. That is, the terminal pins 62 are bent at both ends as shown.
  • the moving member is fitted to the plug 60 as shown, and has a ring-shaped plastic sleeve 64 in which a conductor 61a made of a conductive metal plate is fixed to one side.
  • the conductor 61 is formed by a fixing means made of a diffusion protrusion 64b which protrudes into the sleeve 64 as shown in the enlarged view "B" and the end portion is diffused into a rivet form by a punch not shown. It is integrally fixed to one side of the sleeve 64.
  • this fixing means may be composed of a small piece of screw not shown. That is, the conductor 61 may be fixed to the sleeve 64 by a piece screw.
  • the fixing means is preferably constituted by the diffusion protrusion 64b as described above.
  • the sleeve 64 is supported on one side by the plunger 66 seated on the diaphragm 68 in a horizontal state as shown.
  • the diaphragm 68 and the plunger 66 are pressure transfer units that transmit pressure of the engine oil to the sleeve 64 as described below.
  • the diaphragm 68 described above is fixed to the edge between the end of the connector housing 52 and the bottom surface of the end cap 54 as shown.
  • the diaphragm 68 shields an end (the other side of the case) of the connector housing 52 into which the engine oil flows. That is, the diaphragm 68 shields between the connector housing 52 and the end cap 54.
  • the diaphragm 68 is provided with an elastic ring 68a at the bottom as shown to protect the rim.
  • the elastic body 70 is inserted into the plug 60, as shown, to elastically support the sleeve 64 through the other side while being supported by the partition wall 52a. That is, the elastic body 70 elastically supports the moving member.
  • the partition wall 52a formed in the connector housing 52 of the case 50 has a conical support protrusion SP for supporting the neck portion of the terminal pin 62 as shown.
  • the plunger 66 is guided by the guide member when moving as described below.
  • a guide member forms a guide protrusion 66a on one side facing the plug 60 as shown, and inserts a projection insertion hole 60b into which the guide protrusion 66a is inserted into the plug 60. It can be formed.
  • the moving member described above may be omitted the sleeve 64, as shown.
  • the conductor 61 is fixed to the upper surface of the plunger 66 facing the bent projection 62a of the terminal pin 62.
  • the elastic body 70 is configured to elastically support the edge of the plunger 66 in a state seated on the plunger 66. That is, the conductor 61 is grounded with the bending protrusion 62a on the plunger 66 on which the elastic body 70 is seated.
  • the plunger 66 can take over the role of the sleeve 64 without the sleeve 64 described above.
  • the plug 60 is embedded in the connector housing 52 together with the sleeve 64 in a state of being fitted to the sleeve 64 as shown.
  • the bending protrusion 62a bent at the end of the terminal pin 62 protrudes outward.
  • the bent protrusion 62a has a length that can be grounded with the conductor 61 fixed to the sleeve 64 as shown. That is, the bending protrusion 62a protrudes outward of the plug 60 so that the end thereof is grounded with the conductor 61.
  • the plug 60 and the sleeve 64 are formed with a key 64a and a guide rail 60a as shown.
  • the key 64a and the guide rail 60a are rotation preventing means for restraining a portion of the sleeve 64 to prevent the sleeve 64 from rotating about the plug 60.
  • the key 64a protrudes in a semicircular shape on the inner circumferential surface of the sleeve 64 as shown.
  • the guide rail 60a is formed in a groove shape on the outer circumferential surface of the plug 60 as shown, and is splined to the key 64a of the sleeve 64.
  • the guide rail 60a not only prevents the key 64a from moving in the circumferential direction when the sleeve 64 moves as described below, and guides the key 64a along the movement path of the sleeve 64.
  • the conductor 61 is an electrically conductive metal sheet that is fixed in close contact with one side of the sleeve 64 by the above-described diffusion protrusion 64a as shown in an enlarged view.
  • the end cap 54 supplies the engine oil through the oil hole 54a when the oil pump of the engine, not shown, is operated. At this time, the diaphragm 68 moves the plunger 66 while being convexly deformed as shown.
  • the plunger 66 pushes up the sleeve 64 as it moves.
  • the sleeve 64 is spaced apart from the end of the terminal pin 62 while moving along the axial direction of the plug 60 by the plunger 66. That is, the sleeve 64 is spaced apart from the bending protrusion 62a of the terminal pin 62. Therefore, the current applied to the terminal pin 62 is not energized as the conductor 61 moves together with the sleeve 64. For this reason, the warning light of the vehicle not shown is not lit.
  • the elastic body 70 is compressed while being pressed to the sleeve 64 as shown. That is, the elastic body 70 secures an elastic force as it is compressed.
  • the sleeve 64 compresses the air present inside the connector housing 52 as it moves. At this time, the air is exhausted through the terminal hole 52a 'into which the terminal pin 62 is fitted, as shown in the enlarged view "A". That is, the air is exhausted through the gap between the terminal pin 62 and the terminal hole 52a '. Thus, the sleeve 64 moves smoothly inside the connector housing 52.
  • This sleeve 64 is almost completely sealed as it is installed inside the connector housing 52 as shown. That is, the sleeve 64 is almost completely sealed as it is spaced apart from the coupling portion of the connector housing 52 and the end cap 54, unlike the prior art.
  • the sleeve 64 moves in a state where the key 64a of the inner circumferential surface is inserted into the guide rail 60a of the plug 60 formed in the groove shape, the sleeve 64 moves stably and is prevented from rotating.
  • the plunger 66 is stably moved because the guide protrusion 66a is guided by the protrusion insertion hole 60a of the plug 60 during the movement.
  • the end cap 54 does not flow into the oil hole 54a.
  • the elastic body 70 presses the sleeve 64 while being circularly restored as the pressure of the engine oil is lost. Therefore, the sleeve 64 returns the conductor 61 to the bent projection 62a of the terminal pin 62 while returning to the original position.
  • the pair of terminal pins 62 are energized by the conductor 61 to light the warning light of the vehicle not shown to warn that the engine oil is insufficient.
  • the plunger 66 and the diaphragm 68 return to their original positions as shown by the elastic force of the elastic body 70 transmitted through the sleeve 64.
  • the pair of terminal pins 62 are stably energized since the conductor 61 is grounded while being seated on the bending protrusion 62a as shown.
  • the engine oil detector for an internal combustion engine is installed on not only engine oil but also various flow rate check parts or hydraulic check parts of a vehicle, and can be applied to control the flow rate while controlling the fluid. It can also be applied to check the remaining amount or pressure.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

La présente invention porte sur un capteur pour détecter la quantité restante d'huile moteur qui est délivrée à un moteur à combustion interne. La présente invention comprend : un boîtier creux qui comporte une paroi de séparation à l'intérieur d'un côté, et qui a un trou d'huile pour l'admission d'huile moteur sur l'autre côté ; un bouchon cylindrique qui est logé dans le boîtier, et sur lequel sont fixées d'un seul tenant une paire de broches terminales fixées avec un côté traversant la paroi de séparation du boîtier ; un élément mobile qui comporte un corps électroconducteur pour faire passer un courant appliqué à la paire de broches terminales fixées au bouchon tout en étant mis à la terre avec les broches terminales, et qui met à la terre sélectivement le corps électroconducteur avec les broches terminales lorsqu'il se déplace conformément à la pression de l'huile moteur à l'intérieur du boîtier ; et un corps élastique qui supporte de manière élastique le corps mobile à l'intérieur du boîtier. La présente invention permet une simplification de configuration et des produits de poids plus léger en raison du fait que les broches terminales sont configurées sous forme de paire.
PCT/KR2009/004312 2009-07-08 2009-07-31 Capteur d'huile moteur pour un moteur à combustion interne WO2011004933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090062108A KR101025534B1 (ko) 2009-07-08 2009-07-08 내연기관용 엔진오일 감지기
KR10-2009-0062108 2009-07-08

Publications (1)

Publication Number Publication Date
WO2011004933A1 true WO2011004933A1 (fr) 2011-01-13

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PCT/KR2009/004312 WO2011004933A1 (fr) 2009-07-08 2009-07-31 Capteur d'huile moteur pour un moteur à combustion interne

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KR (1) KR101025534B1 (fr)
WO (1) WO2011004933A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112923995A (zh) * 2021-01-28 2021-06-08 河北省廊坊水文勘测研究中心(河北省廊坊水平衡测试中心) 一种防淤探头及水位计

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715420B2 (ja) * 1989-03-07 1995-02-22 日本電装株式会社 圧力センサ
JPH10185733A (ja) * 1996-12-25 1998-07-14 Matsushita Electric Works Ltd 圧力センサ
KR19990008150A (ko) * 1996-03-07 1999-01-25 노무라마사나리 압력센서모듈
KR20080005663A (ko) * 2006-07-10 2008-01-15 현대자동차주식회사 자동차용 오일 압력 스위치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0715420B2 (ja) * 1989-03-07 1995-02-22 日本電装株式会社 圧力センサ
KR19990008150A (ko) * 1996-03-07 1999-01-25 노무라마사나리 압력센서모듈
JPH10185733A (ja) * 1996-12-25 1998-07-14 Matsushita Electric Works Ltd 圧力センサ
KR20080005663A (ko) * 2006-07-10 2008-01-15 현대자동차주식회사 자동차용 오일 압력 스위치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112923995A (zh) * 2021-01-28 2021-06-08 河北省廊坊水文勘测研究中心(河北省廊坊水平衡测试中心) 一种防淤探头及水位计

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KR101025534B1 (ko) 2011-04-04
KR20110004600A (ko) 2011-01-14

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