CN101191752A - Capteur de pression a clapet anti-retour - Google Patents
Capteur de pression a clapet anti-retour Download PDFInfo
- Publication number
- CN101191752A CN101191752A CNA2007101934954A CN200710193495A CN101191752A CN 101191752 A CN101191752 A CN 101191752A CN A2007101934954 A CNA2007101934954 A CN A2007101934954A CN 200710193495 A CN200710193495 A CN 200710193495A CN 101191752 A CN101191752 A CN 101191752A
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- Prior art keywords
- pressure transducer
- housing
- described pressure
- passage section
- return valve
- Prior art date
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- 239000000463 material Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 238000001746 injection moulding Methods 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 18
- 238000013461 design Methods 0.000 description 12
- 238000012423 maintenance Methods 0.000 description 11
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012190 activator Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/0015—Fluidic connecting means using switching means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
- B60T17/043—Brake line couplings, air hoses and stopcocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/341—Systems characterised by their valves
- B60T8/342—Pneumatic systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The sensor (10) has a connection port (18) running in a housing (12), and a return valve (32) integrated in the housing. Another connection port (28) is provided for a pressure source, and the return valve is arranged between flow section areas (24, 50). The return valve includes a valve body (34, 38), which is centered with a central hole (46) of a perforated disk (42) or a wall formed in one of the connection ports. The housing includes a cavity (14), whose base is formed by a mantle surface of one of the connection ports.
Description
Technical field
The present invention relates to a kind of be used to survey the overvoltage on the accumulator especially or the pressure transducer of negative pressure, have housing, first connects to take over and extends in this housing.
Background technology
A kind of plug-in connector that is used for the pipeline of boot media is disclosed by DE 102 40 130.6-16.The grafting body comprises at least one link position, and wherein the main body of the sleeve shaped of being made by first material can be unclamped direction motion landform towards a fixed-direction and one and is received on the grafting body with fishplate bar that elasticity constitutes sealedly.If adopt piezo-activator (it for example is used to handle the fuel injector of compression ignition engine) in fuel injection system, what possibility was necessary is to keep the surplus pressure of some crust in the fuel return-flow system of this internal combustion engine.In the fuel return-flow system that adopts so far, no matter in the external-burning internal combustion engine or in compression ignition engine, fuel directly flow in the fuel tank from return-flow system, wherein only has ambient pressure level.
Nowadays, many have accumulator and pressure-or the pressure system of vacuum source in, used pressure transducer or the pressure switch that is used for the monitor force level and be used to keep this stress level non-return valve.For example in the vehicle braked device, nowadays adopt brake booster usually.Normally two independently member be connected on the brake booster that has pressure monitor or be attached thereto.Relate in one aspect to non-return valve at this, it is connected the inlet side of pressure amplifier (for example brake booster) with vacuum source, and relate to pressure transducer or pressure switch on the other hand, monitor the vacuum that exists in the accumulator (for example brake booster) by the latter.
In the accumulator of pressing principle of negative pressure work that adopts so far, for example brake booster, its size is big relatively.In order to reduce the size of accumulator, for example brake booster, perhaps in order to guarantee whenever to provide the pressure-reduction level of necessity.On accumulator, add above-mentioned member such as pressure transducer or pressure switch or non-return valve, under the situation of needs, can provide additional negative pressure thus.This be equipped with one independently the brake booster assembly of non-return valve and a pressure transducer except the high structure space demand of mentioning, also relate to higher production cost and relative high assembling and manufacturing and expend.
This situation is a kind of not satisfied relatively situation, therefore needs to improve.
Summary of the invention
Propose according to the present invention, non-return valve and pressure transducer are integrated in the construction package and constitute an integrated member by check valve member and pressure transducer or pressure switch member.Therefore can be for example by reducing the number of components and reducing the tangible cost reduction that the interface that needs in other cases reaches finished product.In addition by non-return valve and pressure capsule system, be that pressure transducer or pressure switch are integrated into a unique member, can reduce the structure space that needs in the following manner and provide to produce and fabrication reliability, promptly reduce required the number of components.Because can realize assembling the obvious reduction that expends in addition, so expend owing to the number of components less, that provided also reduces logistics.Emphasize in addition, directly be connected accumulator at this member and can reduce the quantity of receiver hole for example on the interface holes that inserts of the member of brake booster or other types the time, because only need fixing or insert a member with non-return valve function and pressure monitor function.
In the preferred form of implementation as the design on basis of the present invention, housing has two connections that are attached thereto and takes over.In one of two connections adapters that connect, can connect or connect the inlet side of accumulator, for example brake booster.Connection left, that for example be made for moulding is taken over and can be connected with a vacuum source under the centre connects the situation of pressure transducer or pressure switch.The vacuum that exists in accumulator, for example brake booster can keep by a non-return valve, and the latter is integrated in one and connects in the adapter.Being received in non-return valve in the housing of pressure transducer with integrated non-return valve or pressure switch connects first passage section of taking over is connected adapter with second second passage section with first and separates.Two passage sections that connect in taking over can mutually the same or constitute with differing from one another.By the non-return valve in the housing that is received in the pressure transducer that has integrated non-return valve or pressure switch, cancelled the independently valve chest of non-return valve on the one hand, not only can realize for example pressure monitor of the stress level in the brake booster of accumulator by a unique member on the other hand, and can keep the stress level in the brake booster.
Another advantage as the scheme of the present invention suggestion proposes, and is presented on the side face that pressure transducer in the housing or pressure switch for example can rest on one of two connections adapters that are connected with housing and receives pressure signal thus.Housing preferably includes an attachment plug in addition, can be with the signal conveys that received by pressure transducer or pressure switch to controller by this attachment plug.The housing of pressure transducer or pressure switch and two injection connection adapters thereon can be in the simple especially mode of manufacturing technology by the injection moulding process manufacturings.Process after this do not need to allow, for example above-mentioned connection adapter is injected on the housing and stop surface is set in the connection adapter and keeps rib at injection insertion shell on the housing of injecting stop surface, the pressure transducer that is having integrated non-return valve or pressure switch on the side face that two connections are taken over and with one or two.
In addition, so far pressure transducer of making as individual member or pressure switch and the non-return valve made as the individual member equally so far advantage that is fused into a member and provides is, on the housing of accumulator, for example brake booster, (need to fix or insert two independently unit thereon) in the past and now only need to fix a compact structural unit that constitutes, make and can cancel connecting hole on the housing that in the past is arranged on accumulator or connection opening etc., therefore at least the housing of accumulator can be more simply, promptly expend manufacturing with less.
Scheme by the present invention's suggestion can realize in addition, in the motor vehicle that internal combustion engine (its intake pipe negative pressure is not enough to directly connect brake booster under all states) drives, perhaps in the motor vehicle that has hybrid power (its drive unit is not provided for driving the direct negative pressure of brake booster), needs can be set be assemblied in member on the brake booster, the vacuum that its continuous monitoring affacts the vacuum source that negative pressure on the brake booster and continuous monitoring provide vacuum and keeps simultaneously existing in the accumulator.
In another form of implementation as the design on basis of the present invention, except structure one, that for example injection moulding is made that housing and pressure transducer housing and one or two injection connection, that promptly can not be connected are taken over with unclamping, one or two can be connected adapter thereon for example by means of sealing bonding or friction welding or the sealed joint method of other material are connected with the housing of pressure transducer or adopt the sealed joint method of other shapes.Advantageously, according to this enforcement modification a seal element can be installed, it for example is arranged on the circumference of the valve body that the piston shape of non-return valve constitutes and axially and radially is directed in the annular groove of ring cavity in the non-return valve zone.In addition, there is such scheme, promptly under the situation that the one of taking in housing and two injections being connected thereon constitutes, seal element can one take over internal fixation on an insert or the sealing element be pushed into the clip that connects in taking over by means of one and fix.This clip can constitute member independently and be fixed on and be configured on one of maintenance rib of connecting on the outer circumference surface of taking over by simple especially mode on the manufacturing technology.
In another form of implementation of the pressure transducer that the present invention with integrated non-return valve advises, two connection adapters also can be each other in being provided with squarely.The form of implementation that also will describe in detail below this, one of described connection adapter is extended perpendicular to pressure transducer, wherein produces perforation, for example hole shape structure (Lochmuster) in its wall.In a hole that is associated, the connection that for example constitutes individual member is taken over and can for example be connected by laser bonding or sealing adhering method with housing.Wait to be fixed on the seal element that connection on the housing is inserted the ring film form in taking at this.At last, implementing to propose in modification as another of the design on basis of the present invention, the ring film that is used to seal and the valve body of non-return valve are integrated in the housing of pressure transducer, wherein by this form of implementation, one of described connection adapter for example is provided with the perforation that constitutes porose disc perpendicular to the wall of pressure transducer ground orientation and this connection adapter, this porose disc and the seal element interaction that constitutes ring film.
Description of drawings
Describe the present invention in detail by means of accompanying drawing below.Wherein:
Fig. 1 illustrates the form of implementation with the housing shown in the cut-open view of a pressure transducer, comprises the other connection adapter that integrated non-return valve and material are connected sealedly;
Fig. 2 illustrates a kind of form of implementation as the design on basis of the present invention, comprise that one constitutes, as to have two connections adapters in injection moulding housing, one of them support that supports the seal element of described ring film form is presented in one of described connection adapter;
Fig. 3 illustrates the seal element support of a connection that is clamped into the housing that one constitutes in one of taking over;
Fig. 4 illustrates a kind of form of implementation of the scheme of the present invention's suggestion, comprises directed at an angle to each other connection adapter;
Fig. 5 illustrates the exploded view of form of implementation shown in Figure 4;
Fig. 6 illustrates another form of implementation as the design on basis of the present invention, comprise the connection adapter that constitutes at an angle to each other, in this form of implementation, the seal element that constitutes ring film is integrated on the pressure transducer housing with the connection adapter of extending perpendicular to pressure transducer.
Embodiment
As seen from Figure 1, pressure transducer or pressure switch 10 are presented in the housing 12 that for example constitutes moulding.This pressure transducer or pressure switch 10 preferably are presented in the cavity 14 that is surrounded by the wall of housing 12.A grafting joint 16 that constitutes by injection moulding is equally arranged on the housing 12 of this pressure transducer or pressure switch 10, the signal of pressure transducer or pressure switch 10 can be transferred to analyzing and processing-or control module by this grafting joint.In the housing 12 of pressure transducer or pressure switch 10, have first to connect adapter 18, on this connection is taken over, can connect the brake booster of accumulator, for example Vehicular brake device.In this form of implementation, the housing 12 of pressure transducer 10 is connected adapter 18 with first are members.Have one second to connect adapter 28 on this member, this connection is taken over and is used to connect a pressure source that loads to accumulator.This pressure source can produce an overvoltage or a negative pressure with respect to ambient pressure level.
The described brake booster that adopts in conjunction with example of the present invention ground especially relates to a kind of negative pressure brake booster, and its feature is simple and cheap frame mode.In the negative pressure brake booster, apply external air pressure for the working masks surface of pedal side, and apply negative pressure at the opposite side of diaphragm according to pedal force.The power on the working masks of affacting that is caused by pressure reduction produces a power share of supporting the pedal force that applied.The brake pressure that produces is caused by pedal force and auxiliary force.At this, the auxiliary force share increases to reference mark (Aussteurpunkt) according to the amplification coefficient of being determined by structure always.At this reference mark, externally reach maximum differential pressure between air pressure and the negative pressure.
As seen from Figure 1, connect as first of the ingredient of the housing 12 of pressure transducer 10 and take over 18 and have maintenance ribs 20 that a plurality of annulars extend and one and connect the backstop 22 of taking over 18 outer surface around first in order to connect the accumulator (for example brake booster) that applies negative pressure.First first passage section that connects adapter 18 is represented with reference number 24.Reference number 26 expressions first connect the interior perimeter surface of adapter 18.First connect to take over 18 first passage section 24 is connected with second and takes over 28 second passage section 50 and by one these are connected and take over 18,28 non-return valve that separate each other 32 and separate, the second connection adapter bonding hermetically with housing 12 or otherwise material engage sealedly.Also can adopt shape joint method sealed or force closure to replace the sealed joint method of material.On the external peripheral surface of the second connection adapter 28, also have a plurality of preferably by the maintenance ribs 30 injection moulding formation, the annular extension.Non-return valve 32 is positioned at housing 12 inside of pressure transducer or pressure switch 10, and it is connected second passage section of taking in 28 50 with first passage sections 24 in the first connection adapter 18 and separates with second.In pressing the form of implementation of Fig. 1, non-return valve 32 comprises 36 and valve bodies 34 of a dish.Valve body 34 piston forms ground constitutes and interacts with the central opening 46 of a porose disc 42.Porose disc 42 also has hole circle 48, and it is round central opening 46.A ring cavity 44 that centers on valve body 34 is circlewise arranged between porose disc 42 and positioning disk 36 in non-return valve 32.A seal element 40 that constitutes ring film is arranged in this ring cavity, and the sealing element is received on the circumference of piston shape valve body 34.Sealing element 40 is presented in the groove on ring cavity 44 excircles and by axially directed.The seal element 40 that constitutes ring film is positioned at before the porose disc 42 that has central opening 46 and bears sealing function.
As seen from Figure 1, housing 12 is connected adapter 18 and the member of non-return valve 32 formations that is integrated in the housing 12 with first.In the past the member that constitutes separatedly, to be non-return valve 32 become a unique member with pressure transducer or pressure switch 10 scheme combination by the present invention's suggestion.The possibility that this integrated member provides is, the stress level of monitoring in accumulator, for example brake booster by the pressure transducer 10 that is received in the cavity 14 (overvoltage/negative pressure), and the current pressure level that guarantees in the maintenance accumulators (brake booster) by non-return valve 32 on the other hand on the one hand.Two members that separate that adopt in the former scheme are fused into a member by the scheme of the present invention's suggestion.
The integrated pressure transducer or the pressure switch 10 of the present invention's suggestion comprise non-return valve 32 in its housing 12, advantage is, the construction package that passes through to be advised can provide an integrated pressure transducer or pressure switch 10 in the motor vehicle that is promoted by internal combustion engine (its intake pipe negative pressure is not enough to directly connect brake booster in all running statuses) or in the motor vehicle (its drive unit is not provided for driving the direct negative pressure of brake booster) at hybrid power, the latter monitors stress level that exists or the vacuum that exists there continuously in accumulator (brake booster).The integrated pressure transducer that has non-return valve 32 of employing the present invention suggestion or pressure switch 10 expend and for example allow the less size design of accumulator, for example brake booster on the one hand in road vehicle application based on the assembling of the function fusion of pressure monitor in accumulator, for example brake booster and stress level maintenance by a member reduction.In addition, adopt the brake booster that construction package allows coupling to be associated on the internal combustion engine or coupling is associated on the vacuum source under the hybrid power situation of the present invention's suggestion of integrated pressure transducer 10 to monitor the stress level that produces therein continuously.
As seen from Figure 1, described integrated pressure transducer 10 can constitute moulding.By described integrated pressure transducer or pressure switch 10 are constituted moulding (promptly comprise housing 12, first connect take over 18 is connected with second take over 28 as a member and be integrated in non-return valve 32 in this member) can be especially simply with make according to injection moulding process at an easy rate.Especially when making housing 12, be arranged on first and connect boosting inclined-plane, the stop surface 22 in the adapter 18 or second connection adapter 28 and keep rib 20 or 30 in an operation, to make especially simply.Similarly, also be suitable for for cavity 14, it is configured in the inside of housing 12 of described integrated pressure transducer 10 and described pressure transducer or pressure switch 10 and is received in this cavity.As seen from Figure 1, pressure transducer or pressure switch 10 can be arranged on the outer wall of the first connection adapter 18.Constitute moulding by housing 12 and allow in an advantageous manner, in described injection moulding operation, grafting joint 16 is expelled on the housing 12 equally, this pressure transducer 10 electricity are connected by this grafting joint with described integrated pressure transducer 10.
Described integrated pressure transducer 10 shown in Fig. 1 form of implementation in, connecting first passage section 24 or second passage section 50 taken in 18 or 28 is equal to each other, and also design size differently of first passage section 24 and second passage section 50 promptly has different cross-sectional areas.
By the form of implementation of pressing Fig. 1 in addition as seen, the seal element 40 that constitutes ring film is received on the circumference of the valve body 34 that constitutes piston form 38.The excircle of seal element 40 is axially fixing in a circumferential groove 52.The valve body 34 that constitutes piston form 38 is felt relieved in the central opening 46 of porose disc 42.Valve body 34 is fixed in the dish 36 in addition.Fig. 1 illustrates in addition, and second connect to take over 28 is connected with the housing 12 of described integrated pressure transducer 10 on a bonding station 54.On bonding station 54, second connect to take over 28 can be for example bonding or engage by means of the housing 12 of the sealed method of other material with described integrated pressure transducer 10 by means of sealing.Replacing joint method that the sealed joint method of material also can select the sealed or force closure of shape engages with housing 12 will connect adapter 18 and 28.Form of implementation shown in Fig. 1 also comprise that as the housing 12 of the design on basis of the present invention first connects and take over 18 except the housing 12 that is used to receive pressure transducer, it extends to accumulator, for example brake booster of a Vehicular brake device.
Fig. 2 illustrates another form of implementation as the design on basis of the present invention of an integrated pressure transducer.
As seen from Figure 2, the housing 12, first of described integrated pressure transducer 10 connects and takes over 18 and second and connect and take over 28 and constitute a member integrated, that be made into integration.This member can advantageously be made with injection moulding process owing to the geometric configuration of its relative compact.Cancelled bonding station 54 by injection moulding process, it is connected with second between taking over 28 at the housing 12 of described integrated pressure transducer 10 in first form of implementation is necessary.Can connect the stop surface 22 of structure annular on the boosting inclined-plane that is seeing fit respectively in an advantageous manner on the outer surface of taking over the 18 and second connection adapter 28 and keep rib 20 or 30 first by injection moulding process.This can carry out at an in-process, and the housing that one constitutes connects together with first that to take over the 18 other back processing that are connected adapter 28 with second no longer be necessary.
As seen from Figure 2, first connect to take over 18 and is connected adapter 28 with second and has the passage section 24 or 50 that differs from one another.In pressing the form of implementation of Fig. 2, second connect to take over 28 second passage section 50 selects to such an extent that connect greater than first and take over 18 passage section 24, because connect integrated support 56 in second passage section 50 of adapter 28 second in press the form of implementation of Fig. 2.This support 56 comprises at least one support type star polygon work 58, borrows described support type star polygon work to make support 56 be supported on second and connects the inside that is fixed on the second connection adapter 28 on the interior perimeter surface of taking over.Support 56 comprises a rack body 60, and this rack body is sold basically that shape constitutes and connected towards first at it and takes over the seal element 40 that has received a ring film form on 18 the end.Also received the valve body 34 of piston form 38 in addition on rack body 60 with piston form 38, it constitutes non-return valve 32.Connect on the crossover position of taking over 28 to first connection adapters 18 second in addition and have the porose disc of having mentioned in conjunction with first form of implementation of Fig. 1 42, it has hole circle 48 and central opening 36.
Draw another form of implementation of the integrated pressure transducer of the present invention's suggestion by the view of Fig. 3, wherein first connects and takes over, second connects and take over and housing constitutes a member.
By the schematic cross sectional view of Fig. 3 as seen, described integrated pressure transducer 10 comprises housing 12, preferably has first to connect and take over 18 and second and connect and take over 28 by the injection moulding process injection on this housing.Can construct cavity 14 in simple especially mode in housing 12 by this manufacture method, described pressure transducer is presented in this cavity.In the cut-open view of perspective shown in Figure 3, pressure transducer is equipped on first connection and takes over 18 side face.Injection has the rib 20 of maintenance and backstop 22 on the circumference of the first connection adapter 18.On the excircle of the second connection adapter 28, a plurality of front and back maintenance rib 30 is in succession arranged.In this form of implementation, the passage section 24 of the first and second connection adapters 18,28 or 50 size are also inequality, because inserted a geometrical clamp 62 in second passage section 50 of the second connection adapter 28.Geometrical clamp 62 has one and sells the outward appearance of shape basically and have the valve body 34 that constitutes piston form 38 at it on the end of first passage section 24 of the first connection adapter 18.In addition, on the circumference of the valve body 34 that constitutes piston form 38, receive the seal element 40 that the ring film form is arranged.The geometrical clamp 62 that pin shape constitutes is locked at second by means of first hook 34 and second hook 66 and connects in the maintenance rib of taking on 28 the excircle 30.In addition, in connecting on the circumference of taking over 28 main bodys of surrounding by second of geometrical clamp 62 at least one spacer pin can be set, the latter is supported on second and connects on the inner peripheral surface of adapter 28.In second passage section 50 that is pushed into the second connection adapter 28 by the geometrical clamp shown in the form of implementation of Fig. 3 simply, keep fixing by first and second hooks 64,66 on rib 30 and feeling relieved by means of valve body 34 by being pushed into the porose disc 42 that is positioned on the crossover position that leads to the first connection adapter 18 at least one.
Fig. 4 illustrates another embodiment of the pressure transducer of the present invention's suggestion, wherein connects the angle of taking over to become relative to each other 90 °.
As seen from Figure 4, first connection of extending in housing 12 inside takes over 18 with the extension orientation of vertical orientation 68 with respect to the second connection adapter 28.In form of implementation shown in Figure 4, first first passage section 24 that connects adapter 18 equals second connection and takes over 28 second passage section 50.This second for example connect to be taken on a bonding station 70 with the housing 12 of described integrated pressure transducer 10 and engages.This joint can be for example by sealing bonding or being undertaken by the sealed method of other materials.Dish 36 is positioned at second connection and takes over 28 second passage section, 50 inside, and receiving on this dish has the valve body 34 that constitutes piston form 38.The seal element 40 that constitutes ring film is arranged on the circumference of the valve body 34 that constitutes piston form 38.The valve body 34 that constitutes piston form 38 is received in first and connects in the central opening 46 of taking over 18 wall 72.On the outer surface of the first connection adapter 18, can see and keep rib 20.Keep 30 same connections around second of rib to take over 28 outer peripheral faces, this second connects the housing of taking on bonding station 70 with described integrated pressure transducer 10 12 and engages.In the form of implementation shown in Figure 4 of described integrated pressure transducer 10, cancelled porose disc 42.In form of implementation shown in Figure 4, the function of porose disc is born by the first wall 72 interior hole shape structures 74 that connect adapter 18 of extending with vertical orientation 68.
Can consider to be used on the brake booster of the clamping device of accumulator, for example motor vehicle, to apply the special structural relation of overvoltage or negative pressure by form of implementation shown in Figure 4.Integrated pressure transducer 10 shown in Fig. 4 is that to give potential source or negative pressure source be unessential in configuration.
Fig. 5 illustrates the exploded view of the form of implementation of pressure transducer integrated shown in Fig. 4.
As seen from Figure 5, structure hole shape structure 74 in the wall of the first connection adapter 18 that constitutes with vertical orientation 68.Hole shape structure 74 is surrounded by the ring of flange-shape, and this articulating is received ring film 40.Ring film 40 itself is fixed in the central opening 46 of wall 72 by the valve body 34 that constitutes piston form 38 in second inside that connects adapter 28.Second connect to take over 28 be pushed on its bonding station 70 after, the method that it can be bonding by means of sealing or other material is sealed engages with the housing 12 of described integrated pressure transducer 10.Replace the joint method that the sealed joint method of material also can adopt the sealed or force closure of shape.Maintenance rib 20,30 is not only extending on the outer peripheral face of the first connection adapter 18 but also is extending on the outer peripheral face of the second connection adapter 28, and they are provided with and for example are suitable for pushing to the flexible pipe connection inclined.In addition, by the exploded view of the perspective of Fig. 5 as seen, housing 12 has and is used to receive the cavity 14 of pressure sensor assembly and injection thereon and has grafting joint 16, the first to connect to take over 18 extensions housing 12 in.
As another form of implementation of the design on basis of the present invention, wherein connect to take over and extend at an angle to each other as seen from Figure 6.
With in the form of implementation shown in the perspective cut-away schematic view of Fig. 4 differently, in the view of Fig. 6, in described first connecting and take in 18 the wall 72 injection or insert a support core body 76 of extending with vertical orientation 68.It is surrounded by hole shape structure 74.Push to the ring film that constitutes seal element 40 on the support core body 46 in being formed in wall 72, the latter is fixed on the support core body 76 by a fixture 78.In form of implementation shown in Figure 6 as the design on basis of the present invention, second connect take over 28 on bonding station 70 or joint method that other materials sealed bonding by means of sealing be connected with the housing 12 of described integrated pressure transducer 10.Replace the sealed joint method of material and also can adopt the sealed joint method of force closure or shape.In addition, also be configured with grafting joint 16 on housing 12, this housing receives described first connection of extending with vertical orientation 68 and takes over 18.In form of implementation shown in Figure 6, in the housing 12 of described integrated pressure transducer 10 except grafting joint 16, first connect to take over 18 and also be integrated with non-return valve 32 and seal element with what vertical orientation 68 constituted at this.Only the second connection adapter 28 engages with housing 12 on bonding station 70.In the form of implementation shown in Figure 6 as the design on basis of the present invention, first connects and takes over 18 first passage section 24 is connected adapter 28 with second second passage section 50 and be equal to each other.Connect to take at two that injection has the rib 20,30 of maintenance on 18,28, take over 28 when being formed into moulding when housing 12 and second connects, described maintenance rib can especially easily be made.
Except the above-mentioned form of implementation as ring film of seal element 40, it also can constitute ball.The seal element 40 that constitutes with sphere can the close encapsulation face, the central opening 46 in the hole shape structure 74 in the form of implementation of the central opening 46 in for example porose disc 42 or Fig. 4.Seal element 40 not only can constitute ring film but also can constitute spherical.
Claims (14)
1. be used to survey the overvoltage on the accumulator especially or the pressure transducer (10) of negative pressure, has housing (12), first connect to take over (18) extends in this housing, it is characterized in that: this housing (12) comprise non-return valve (32) be used for pressure source second be connected adapter (28).
2. by the described pressure transducer of claim 1 (10), it is characterized in that: the described non-return valve (32) that is integrated in the housing (12) is arranged between first passage section (24) and second passage section (50).
3. by the described pressure transducer of claim 1 (10), it is characterized in that: the valve body of this non-return valve (32) (34,38) is received in described connection and takes in one of (18,28).
4. by the described pressure transducer of claim 1 (10), it is characterized in that: this non-return valve (32) has valve body (34,38), and the central opening (46) that this valve body is taken in one of (18,28) by the described connection of being configured in of porose disc (42) or wall (72) is felt relieved.
5. by the described pressure transducer of claim 1 (10), it is characterized in that: this housing (12) has cavity (14), and the side face that one of (18,28) are taken over by described connection in the bottom of this cavity constitutes.
6. by the described pressure transducer of claim 1 (10), it is characterized in that: this housing (12) connects adapter (18) with first and is connected adapter (28) with second and makes a member as moulding and comprise grafting joint (16) in the injection moulding.
7. by the described pressure transducer of claim 1 (10), it is characterized in that: this second connects and takes over (28) or shape sealed with housing (12) material on a bonding station (54,70) and engage sealedly.
8. by the described pressure transducer of claim 1 (10), it is characterized in that: this housing (12) comprises ring cavity (44) in the zone of non-return valve (32), is provided with the seal element (40) that constitutes ring film in this ring cavity.
9. by the described pressure transducer of claim 2 (10), it is characterized in that: first passage section (24) is identical with second passage section (50); Perhaps first passage section (24) is different with second passage section (50).
10. by the described pressure transducer of claim 1 (10), it is characterized in that: this first connection is taken over (18) and is connected angled ground of adapter (28) or heart extension coaxially to each other with second.
11. by the described pressure transducer of claim 8 (10), it is characterized in that: sealing element (40) is received on the valve body (34) of non-return valve (32), perhaps be received on a stake body (56) that is clamped in one of described connection adapter (18,28), perhaps be received on the geometrical clamp (62) of a pin shape.
12. by the described pressure transducer of claim 8 (10), it is characterized in that: sealing element (40) is fixed on the support core body (76) by means of a fixture (78) in housing (12).
13. by the described pressure transducer of claim 3 (10), it is characterized in that: this valve body (34) axially constitutes movingly, is directed in a passage section (50) and be pressed towards sealing surface (40 when relative overvoltage occurring; 42,74) and seal this passage section (50).
14. by one in the aforesaid right requirement or multinomial described pressure transducer (10), it is characterized in that: it is used on the accumulator of brake booster of clamping device of motor vehicle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006056242.9 | 2006-11-27 | ||
| DE200610056242 DE102006056242A1 (en) | 2006-11-27 | 2006-11-27 | Pressure sensor for use in brake system of motor vehicle, has connection port running in housing, return valve integrated in housing, another connection port provided for pressure source, and return valve arranged between flow section areas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101191752A true CN101191752A (en) | 2008-06-04 |
Family
ID=39326441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101934954A Pending CN101191752A (en) | 2006-11-27 | 2007-11-27 | Capteur de pression a clapet anti-retour |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2008134251A (en) |
| CN (1) | CN101191752A (en) |
| DE (1) | DE102006056242A1 (en) |
| FR (1) | FR2909177A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381303A (en) * | 2011-08-15 | 2012-03-21 | 吉林大学 | Fixing device of pressure monitoring system sensor of brake pipeline of nondestructive operation automobile |
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| CN105509954A (en) * | 2015-11-26 | 2016-04-20 | 宁波新思创机电科技股份有限公司 | Vacuum pressure sensor |
| CN107697058A (en) * | 2017-11-17 | 2018-02-16 | 河北亚大汽车塑料制品有限公司 | A kind of vacuum pressure sensor check valve |
| CN110778558A (en) * | 2019-11-14 | 2020-02-11 | 山西维纳泰克科技有限公司 | Novel hydraulic system check valve |
| CN111819429A (en) * | 2018-03-01 | 2020-10-23 | 罗伯特·博世有限公司 | Pressure sensor for a brake booster |
| CN113044014A (en) * | 2019-12-27 | 2021-06-29 | 上海亚大汽车塑料制品有限公司 | Automobile vacuum brake system pressure maintaining device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010041170A1 (en) | 2010-09-22 | 2011-03-24 | Alfmeier Präzision AG Baugruppen und Systemlösungen | Valve assembly for brake booster of motor vehicle, has pressure transducer with two pressure sensors that produce respective pressure measured values, where sensors are independently operable from one another and receive similar pressure |
| US9568388B2 (en) * | 2014-08-05 | 2017-02-14 | Sensata Technologies, Inc. | Small form factor pressure sensor |
| FR3030740B1 (en) | 2014-12-18 | 2016-12-30 | Coutier Moulage Gen Ind | PRESSURE MEASURING DEVICE AND BRAKE SYSTEM COMPRISING SUCH A PRESSURE MEASURING DEVICE |
| CN207902421U (en) * | 2018-02-14 | 2018-09-25 | 罗伯特·博世有限公司 | Low pressure sensor |
| CN110715765B (en) * | 2019-11-08 | 2025-02-14 | 武汉飞恩微电子有限公司 | A pressure sensor for preventing backflow |
| JP7598237B2 (en) | 2020-12-21 | 2024-12-11 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Check valve and pressure detection device equipped with the check valve |
-
2006
- 2006-11-27 DE DE200610056242 patent/DE102006056242A1/en not_active Ceased
-
2007
- 2007-11-23 FR FR0759247A patent/FR2909177A1/en not_active Withdrawn
- 2007-11-27 CN CNA2007101934954A patent/CN101191752A/en active Pending
- 2007-11-27 JP JP2007305678A patent/JP2008134251A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381303A (en) * | 2011-08-15 | 2012-03-21 | 吉林大学 | Fixing device of pressure monitoring system sensor of brake pipeline of nondestructive operation automobile |
| CN102381303B (en) * | 2011-08-15 | 2013-08-28 | 吉林大学 | Fixing device of pressure monitoring system sensor of brake pipeline of nondestructive operation automobile |
| CN103398819A (en) * | 2013-08-26 | 2013-11-20 | 昆山市兴利车辆科技配套有限公司 | Novel vehicle vacuum pressure sensor |
| CN105509954A (en) * | 2015-11-26 | 2016-04-20 | 宁波新思创机电科技股份有限公司 | Vacuum pressure sensor |
| CN107697058A (en) * | 2017-11-17 | 2018-02-16 | 河北亚大汽车塑料制品有限公司 | A kind of vacuum pressure sensor check valve |
| CN107697058B (en) * | 2017-11-17 | 2023-08-18 | 河北亚大汽车塑料制品有限公司 | Check valve of vacuum pressure sensor |
| CN111819429A (en) * | 2018-03-01 | 2020-10-23 | 罗伯特·博世有限公司 | Pressure sensor for a brake booster |
| US11945422B2 (en) | 2018-03-01 | 2024-04-02 | Robert Bosch Gmbh | Pressure sensor for a brake booster |
| CN110778558A (en) * | 2019-11-14 | 2020-02-11 | 山西维纳泰克科技有限公司 | Novel hydraulic system check valve |
| CN113044014A (en) * | 2019-12-27 | 2021-06-29 | 上海亚大汽车塑料制品有限公司 | Automobile vacuum brake system pressure maintaining device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006056242A1 (en) | 2008-05-29 |
| JP2008134251A (en) | 2008-06-12 |
| FR2909177A1 (en) | 2008-05-30 |
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Open date: 20080604 |