CN110112036A - A kind of Oil pressure switch - Google Patents
A kind of Oil pressure switch Download PDFInfo
- Publication number
- CN110112036A CN110112036A CN201910344399.8A CN201910344399A CN110112036A CN 110112036 A CN110112036 A CN 110112036A CN 201910344399 A CN201910344399 A CN 201910344399A CN 110112036 A CN110112036 A CN 110112036A
- Authority
- CN
- China
- Prior art keywords
- contact
- movable contact
- contact piece
- oil pressure
- piece
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 50
- 238000010586 diagram Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 4
- 239000010721 machine oil Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
A kind of Oil pressure switch, belong to internal combustion engine technologies field, including shell, sealing ring, diaphragm, mandril, movable contact piece, stationary contact spot film, spring, plug assembly, movable contact piece includes contact, contact carriage, ontology, design has limiting stand and groove on mandril, the contact carriage design of movable contact on piece has the angle upwarped, the highest point position height of contact is greater than limiting stand height, the problems such as quick-wearing is crossed in contact under high pressure, high-frequency vibration signal is unstable is efficiently solved, product stability and service life are improved.
Description
Technical field
The present invention relates to internal combustion engine technologies fields, in particular to a kind of Oil pressure switch of internal combustion engine.
Background technique
Internal combustion engine is the pressure detected in main oil gallery in the effect of engine lubrication system with Oil pressure switch, when
When oil pressure is higher than setup pressure value, movable contact piece is contacted with stationary contact spot film inside Oil pressure switch, and circuit is connected, and transmits signal
To control unit of engine, control unit of engine can be according to signal controlling machine oil oil pressure, to realize that oil pressure is in a conjunction
The range of reason avoids engine from causing to damage because of insufficient lubrication.
For ease of understanding, detailed schematic explanation is done to a kind of typical Oil pressure switch in the prior art with reference to Fig. 1.
Currently, the Oil pressure switch that automobile engine uses, is mounted in oil sump or in cylinder block, mainly by shell
1, sealing ring 2, diaphragm 3, mandril 4, movable contact piece 5, stationary contact spot film 6, spring 7, plug assembly 8 form.Its working principle is that: when
When gallery pressure is lower than setting value, the movable contact piece 5 in Oil pressure switch bears the elastic reset of spring 7,5 He of movable contact piece
Stationary contact 6 does not contact, and switch is in an off state；When gallery pressure is higher than setting value, oil pressure is pushed in Oil pressure switch
Diaphragm 3, for diaphragm 3 by pushing mandril 4,4 stress of mandril is transferred to movable contact piece 5, compress 5 push the spring 7 of movable contact piece,
6 contact closure of movable contact piece 5 and stationary contact spot film, switch connection, transmitting signal to control unit of engine, control unit of engine
According to signal controlling machine oil oil pressure, to guarantee that machine oil oil duct pressure is in a reasonable range.
But under actual condition, the oil pressure in oil duct has different degrees of fluctuation, high pressure and high-frequency fluctuation in oil duct
It can be transferred directly on the contact of Oil pressure switch, high pressure or high voltagehigh frequency fluctuation are born in contact, if contact is not protected
Mechanism will lead to the too fast deterioration in contact or cause high-frequency vibration, to cause the unstable or switch life of fuel injection pressure signal
Reduction.
In conclusion Oil pressure switch how is effectively ensured under continuous high-pressure or high-frequency and high-voltage state, there is contact
Protection mechanism protection improves product service life, is that current those skilled in the art are urgently to be solved to reduce abrasion.
Summary of the invention
The object of the present invention is to provide a kind of Oil pressure switch, efficiently solve the too fast mill in contact of Oil pressure switch
Damage, the problems such as high-frequency vibration signal is unstable.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of Oil pressure switch, inside housings and and sealing ring including shell, with the sealing ring of shell cooperation, setting
The diaphragm of cooperation cooperates with the mandril of diaphragm cooperation, the movable contact piece that mandril upper end is arranged in, with the movable contact piece
Stationary contact spot film, the spring being connect with the movable contact piece, the plug assembly that is connect with the spring other end, the movable contact
Piece includes contact, contact carriage, ontology.
The mandril is arranged between diaphragm and movable contact piece, and the stationary contact spot film and shell interference fit are fixed on centainly
Position, when pressure-less state, the mandril is resetted by spring force, and mandril is not contacted with stationary contact spot film at this time, with oil pressure
Increase, the diaphragm bears gallery pressure, and diaphragm applied force pushes push rod mobile, and the push rod pushes movable contact piece to overcome spring force
It is mobile, thus realize that movable contact piece is contacted with stationary contact spot film, switch connection.
The movable contact on piece contact carriage design have the angle upwarped, the contact carriage have elasticity, when movable contact piece by
When power is mobile, one end that contact carriage tilts can first contact stationary contact spot film, and contact carriage utilizes natural resiliency deformation buffered hf high pressure
Impact, protection contact are not subject to excessive pressure, reduce impact wear.
Design has limiting stand on the mandril, and the highest point position height of the contact design of the movable contact piece is greater than described
Limiting stand height, a certain setup pressure value under setting limit pressure value as high pressure conditions, when oil pressure is lower than limit pressure value,
The limiting stand is not contacted with stationary contact spot film, at this point, movable contact piece will overcome spring force to generate according to actual oil pressure size
Displacement makes contact disconnect or contact stationary contact spot film；When oil pressure is higher than limit pressure value, limiting stand is contacted with stationary contact spot film,
Limiting stand bears most of pressure of oil pressure, at this point, the contact of movable contact on piece can contact simultaneously stationary contact with certain elastic force
Piece keeps switch ways to realize the purpose of protection contact.
Designed on the mandril it is fluted, the design idea of the groove be guarantee movable contact bridge can be under a certain pressure
With downward movement space, guarantees moving range of the contact carriage under high-frequency and high-voltage impact conditions, ensure that reliability of contact.
The movable contact piece only has contact position to contact with stationary contact spot film, the ontology of movable contact piece, contact carriage position not with
The contact of stationary contact spot film, and the ontology of movable contact piece, always with the end thereof contacts of spring, which can make movable contact piece reasonable
Operating condition under, can guarantee that contact carriage is in the state of a buffering always, while avoid movable contact piece and stationary contact spot film
Between hard collision.
Preferably, the movable contact plate shape is the design of " work " type.
Preferably, the movable contact shape is designed as ellipse or round.
Preferably, design has spring base between spring and movable contact piece.
Preferably, contact carriage design has bending.
Oil pressure switch provided by the present invention can guarantee Oil pressure switch in continuous high-pressure or high-frequency and high-voltage shape
Under state, contact is protected, improves product stability and service life.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of schematic diagram of typical Oil pressure switch in the prior art；
Fig. 2 is the Oil pressure switch schematic diagram in the present invention；
Fig. 3 is Oil pressure switch mandril schematic diagram of the present invention；
Fig. 4 is Oil pressure switch movable contact piece schematic diagram of the present invention；
Fig. 5 is another angle schematic diagram of Oil pressure switch movable contact piece of the present invention；
Fig. 6 is that mandril of the present invention, movable contact piece and stationary contact spot film cooperate schematic diagram；
Fig. 7 is mandril of the present invention, movable contact piece and another cooperation schematic diagram of stationary contact spot film；
Fig. 8 is the cooperation schematic diagram of spring of the present invention and spring base;
Fig. 9 is the contact carriage bending schematic diagram of Oil pressure switch movable contact piece of the present invention
It is marked in attached drawing as follows:
1, shell；2, sealing ring；3, diaphragm；4, mandril；41, limiting stand；42, groove；5, movable contact piece；51, contact；52, it touches
Point bridge；53, ontology；6, stationary contact spot film；7, spring；71, spring base；8, plug assembly.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Attached drawing 2-7 is please referred to, a kind of Oil pressure switch exists including shell 1, the sealing ring 2 cooperated with shell 1, setting
1 inside of shell and the diaphragm 3 cooperated with sealing ring 2, the mandril 4 cooperated with diaphragm 3, the movable contact that 4 upper end of mandril is set
Piece 5, the stationary contact spot film 6 cooperated with movable contact piece 5, with the spring 7 of the cooperation of movable contact piece 5, the plug that is connect with 7 other end of spring
Assembly 8, movable contact piece 5 include contact 51, contact carriage 52, ontology 53.Mandril 4 is arranged between diaphragm 3 and movable contact piece 5, quiet
Contact piece 6 and the interference fit of shell 1 are fixed on certain position, and when pressure-less state, mandril 4 is pushed up at this time by 7 elastic reset of spring
Bar 4 is not contacted with stationary contact spot film 6, and with the increase of oil pressure, diaphragm 3 bears gallery pressure, and 3 stress of diaphragm pushes push rod mobile,
It is mobile that push rod pushes movable contact piece 5 to overcome 7 elastic force of spring, thus realize that movable contact piece 5 is contacted with stationary contact spot film 6, switch connection.
With reference to Fig. 5, Fig. 6, the design of contact carriage 52 on movable contact piece 5 has the angle upwarped.The contact carriage 52 has elasticity,
When 5 stress of movable contact piece is mobile, one end that contact carriage 52 tilts can first contact stationary contact spot film 6, and contact carriage 52 utilizes elastic shape
Become buffered hf impacting with high pressure, protection contact 51 is not subject to excessive pressure, reduces impact wear.
With reference to Fig. 2-7, design has limiting stand 41 on mandril 4.A certain setting under limit pressure value is set as high pressure conditions
Pressure value, which is designed according to the pressure-bearing of each composition critical component of Oil pressure switch and practical application
Environmental pressure situation determines that, when oil pressure is lower than limit pressure value, limiting stand 41 do not contact with stationary contact spot film 6, at this point, dynamic touch
Spot film 5 will overcome 7 elastic force of spring to generate displacement according to actual oil pressure size, and contact 51 is made to disconnect or contact stationary contact spot film
6, because the design of contact carriage 52 has the angle upwarped, and the highest point position height for the contact 51 designed is high greater than limiting stand 41
Degree, so contact 51 can contact stationary contact spot film 6 prior to limiting stand 41 always；When oil pressure is higher than limit pressure value, limiting stand 41
It is contacted with stationary contact spot film 6, limiting stand 41 bears most of pressure of oil pressure, at this point, the contact 51 on movable contact piece 5 can be with certain
Elastic force simultaneously contact stationary contact spot film 6, thus realize protection contact 51 purpose, keep switch ways.
With reference to Fig. 3, Fig. 7, fluted 42 are designed on mandril 4, the design idea of groove 42 is to guarantee that movable contact bridge 52 can
There is downward movement space under a certain pressure, guarantee moving range of the contact carriage 52 under high-frequency and high-voltage impact conditions, guarantee
The reliability of contact 51.
With reference to Fig. 7, movable contact piece 5 only has 51 position of contact to contact with stationary contact spot film 6, ontology 53 and contact carriage 52 not with it is quiet
Contact piece 6 contacts, and the end thereof contacts with spring 7, the design can make movable contact piece 5 exist to the ontology 53 of movable contact piece 5 always
Under reasonable operating condition, it can guarantee that contact carriage 52 in the state of a buffering, avoids movable contact piece 5 and stationary contact always
Hard collision between spot film 6.
With reference to Fig. 4, it is preferable that 5 shape of movable contact piece is the design of " work " type, which guarantees 5 stress equalization of movable contact piece,
Avoid the deformation of movable contact piece 5.
With reference to Fig. 4, it is preferable that 51 shape of movable contact is designed as ellipse or round, guarantees coming into full contact with for contact, reduces
Voltage drop avoids pitting of contact.
With reference to Fig. 2, Fig. 8, it is preferable that design has spring base 71 between spring 7 and movable contact piece 5, for transmitting movable contact
The oil pressure pressure that piece 5 is born, 71 push the spring 7 of spring base stablize 7 uniform force of spring.
With reference to Fig. 9, it is preferable that the design of contact carriage 52 has a bending, i.e. the front end portion of the contact carriage 52 has downward slight
Bending guarantees coming into full contact with for contact 51, reduces voltage drop, avoids ablation.
Working principle of the present invention is as follows:
When gallery pressure is lower than setup pressure value, movable contact piece 5 bears 7 elastic reset of spring, does not contact with stationary contact spot film 6,
Switch is in an off state.When gallery pressure is higher than setup pressure value, diaphragm 3 bears oil pressure and oil pressure is transferred to mandril 4,
4 stress uplink of mandril, so that movable contact piece 5 is pushed to overcome 7 elastic force uplink of spring, during 5 uplink of mandril 4 and movable contact piece,
It is that the contact 51 of movable contact piece 5 is contacted with stationary contact spot film 6 first, the contact 51 of movable contact piece 5 is located at the bullet for upwarping certain angle
Property 52 end of contact carriage on, elasticity design can effectively buffer movable contact piece 5 and pressure when 6 instantaneous touch of stationary contact spot film is rushed
It hits.When movable contact piece 5 is up to top dead centre, which refers to uplink highest point when contact 51 contacts stationary contact spot film 6, moves
Contact 51 on 5 elastic arm of contact piece can contact downlink after stationary contact spot film 6, and mandril 4 is arranged fluted 42, can satisfy contact 51
Range demands, until the limiting stand 41 of mandril 4 is contacted with stationary contact spot film 6, the contact 51 in 5 contact carriage 52 of movable contact piece at this time
Since its elasticity will continue to contact stationary contact spot film 6, and since the height of the limiting stand of mandril 4 41 is higher than the height of contact carriage 52,
The contact carriage 52 and ontology 53 of movable contact piece 5 will not all contact stationary contact spot film 6.Therefore the limiting stand 41 of mandril 4 can bear to come from
Most of pressure of oil pressure, and the contact carriage 52 of movable contact piece 5 is solely subjected to self-deformation elastic force, deformation elastic force is by acting on dynamic touching
7 Spring balanced of spring on spot film 5.Stationary contact spot film 6 is contacted with movable contact piece 5 by contact 51 at this time, and circuit is connected, and provides letter
Number control unit of engine is given, control unit of engine controls gallery pressure according to signal and is maintained at the model of a reasonably stability
It encloses.
Oil pressure switch provided by the present invention can not only may be used also by the limit design protection contact 51 of mandril 4
To avoid the problem that 52 juxtaposition metamorphose of contact carriage by the limit design of mandril 4, to improve life of product.
Said engine oil pressure switch is only a kind of preferred embodiment, is specifically not limited thereto, on this basis can be according to reality
Border, which needs to make to have, targetedly to be adjusted, to obtain different embodiments.
Obviously, under the guidance of this thought, those skilled in the art can be according to the difference of specific occasion to above-mentioned
Mandril 4 and movable contact piece 5 in specific embodiment carry out several changes, and the quantity of limiting stand 41 can be according to movable contact piece 5
Shape design.52 quantity of contact carriage of movable contact piece 5 at least there are two and the tilting angle of contact carriage 52 can be according to contact carriage
52 length and elastic properties of materials featured configuration.51 shape of contact and quantity in 5 contact carriage 52 of movable contact piece can be according to realities
Border use environment is configured.
It is important to note that scheme provided by the present invention is not limited to the application of Oil pressure switch.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (5)
1. a kind of Oil pressure switch, including shell (1), with the sealing ring (2) of the shell (1) cooperation, setting in shell (1)
The internal and diaphragm (3) cooperated with sealing ring (2) and the mandril (4) of the diaphragm (3) cooperation are arranged in mandril (4) upper end
Movable contact piece (5), with the stationary contact spot film (6) of the movable contact piece (5) cooperation, the spring that is connect with the movable contact piece (5)
(7), the plug assembly (8) connecting with the spring (7) other end, the movable contact piece (5) include contact (51), contact carriage
(52), ontology (53), it is characterised in that design has limiting stand (41) and groove (42), the movable contact piece on the mandril (4)
(5) contact carriage (52) design on has the angle upwarped, and the highest point position height of the contact (51) is greater than the limiting stand
(41) height, when movable contact piece (5) stress is lower than a certain setup pressure value, the limiting stand (41) and stationary contact spot film (6) are no
Contact；When movable contact piece (5) stress is higher than a certain setup pressure value, the limiting stand (41) contacts with stationary contact spot film (6).
2. a kind of Oil pressure switch according to claim 1, it is characterised in that described movable contact piece (5) shape is
The design of " work " type.
3. a kind of Oil pressure switch according to claim 1, it is characterised in that movable contact (51) shape is ellipse
It is round or round.
4. a kind of Oil pressure switch according to claim 1, it is characterised in that it further includes having spring base (71), described
Spring base (71) is set between movable contact piece (5) and spring (7).
5. a kind of Oil pressure switch according to claim 1, it is characterised in that contact carriage (52) design has folding
It is curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344399.8A CN110112036A (en) | 2019-04-26 | 2019-04-26 | A kind of Oil pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344399.8A CN110112036A (en) | 2019-04-26 | 2019-04-26 | A kind of Oil pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110112036A true CN110112036A (en) | 2019-08-09 |
Family
ID=67486975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344399.8A Pending CN110112036A (en) | 2019-04-26 | 2019-04-26 | A kind of Oil pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110112036A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709108A (en) * | 2012-05-31 | 2012-10-03 | 曲阜天博汽车零部件制造有限公司 | Oil pressure switch |
| CN103069520A (en) * | 2010-07-23 | 2013-04-24 | Fep车辆电气皮尔纳公司 | Pressure switch |
| CN209822557U (en) * | 2019-04-26 | 2019-12-20 | 曲阜天博汽车零部件制造有限公司 | Engine oil pressure switch |
-
2019
- 2019-04-26 CN CN201910344399.8A patent/CN110112036A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069520A (en) * | 2010-07-23 | 2013-04-24 | Fep车辆电气皮尔纳公司 | Pressure switch |
| CN102709108A (en) * | 2012-05-31 | 2012-10-03 | 曲阜天博汽车零部件制造有限公司 | Oil pressure switch |
| CN209822557U (en) * | 2019-04-26 | 2019-12-20 | 曲阜天博汽车零部件制造有限公司 | Engine oil pressure switch |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190809 |