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WO2008122466A1 - Unité de raccordement pour une cellule manométrique - Google Patents

Unité de raccordement pour une cellule manométrique Download PDF

Info

Publication number
WO2008122466A1
WO2008122466A1 PCT/EP2008/052236 EP2008052236W WO2008122466A1 WO 2008122466 A1 WO2008122466 A1 WO 2008122466A1 EP 2008052236 W EP2008052236 W EP 2008052236W WO 2008122466 A1 WO2008122466 A1 WO 2008122466A1
Authority
WO
WIPO (PCT)
Prior art keywords
counterpart
measuring cell
contact means
pressure measuring
contact
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.)
Ceased
Application number
PCT/EP2008/052236
Other languages
German (de)
English (en)
Inventor
Philipp Grell
Rainer Fuerst
Peter Zadach
Harry Kaiser
Christian Doberschuetz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2008122466A1 publication Critical patent/WO2008122466A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G01L19/14—Housings
    • 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
    • B60T8/36—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 including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units

Definitions

  • the invention is based on a connection unit for a pressure measuring cell according to the preamble of the independent claim.
  • a valve with integrated pressure sensor is already known from DE 10 2004 033 846 A1.
  • the pressure sensor is integrated in the valve dome so that no further mounting and holding elements are necessary.
  • the pressure of the hydraulic fluid is transferred to the measuring diaphragm of the measuring cell.
  • a printed circuit board a plurality of through holes are formed, through which the electrical contacts of the pressure sensor and / or the electrical part of the valve are passed. Contacting of the pressure sensor takes place for example via bonds.
  • connection unit for a pressure measuring cell has the opposite advantage that the proposed counterpart is particularly low builds and thus no longer determines the height. This is achieved, in particular, by constructing the counterpart around the pressure measuring cell or around a circuit carrier and a plug, so that the overall height of the pressure sensor can be fully utilized for the connection unit.
  • On the circuit carrier is at least one circuit or at least least one electronic component for processing (filtering, signal amplification or the like) of at least one output signal of the pressure measuring cell.
  • At least one contact means for example a contact spring, is provided for contacting, which cooperates with a contact plate of one of the plug.
  • a contact spring is provided for contacting, which cooperates with a contact plate of one of the plug.
  • the counterpart is sleeve-shaped and the contact means is arranged on the inside of the counterpart, preferably on the cylindrical inner side of the counterpart. This further reduces the height of the installation space, since on the one hand the interior can be used for receiving the plug with circuit carrier, while outward preferably radially contacting can be done for example with the stamped grid.
  • connection unit for a pressure measuring cell An embodiment of the connection unit for a pressure measuring cell is shown in the drawing and will be described in more detail below.
  • connection unit consisting of plug and counterpart, arranged on a valve
  • FIG. 2 shows a perspective view of the counterpart
  • FIG. 3 is a perspective view of the plug
  • Figure 4 shows the covered by a plug sensor electronics
  • Figure 5 is a perspective sectional view of the counterpart, plug, circuit carrier and pressure measuring cell mounted on the valve state.
  • An unspecified valve block for example for controlling a brake system in a motor vehicle, has a plurality of valves 16.
  • Valves 16 each have a pressure measuring cell 14 is arranged to detect a pressure of the controlled by the respective valve 16 fluid.
  • a connection unit 10 is provided, which consists of a counterpart 80 and a plug 40 releasably connected therein. By the counterpart 80, an electrical contact of the pressure measuring cell 14 is made with the plug 40.
  • the counterpart 80 is preferably aligned on the coil shell or in the alternative coil design on the coil bottom of the valve 16. Alternatively, an orientation on the winding support of the valve 16 would be possible.
  • the counterpart 80 is connected via contact lugs 82 as a contact means with the lead frame 84 for contacting the processing electronics. Alternatively, however, could also be the connection to the processing electronics via flexible cable. - A -
  • the counterpart 80 is explained in more detail.
  • the counterpart 80 is designed sleeve-shaped, wherein the inner contour is designed substantially cylindrical.
  • the outer contour of the counterpart 80 has an octagonal structure.
  • Each second of the octagonal outer surface of the counterpart 80 has an upwardly open recess 87, which terminates laterally in the axial direction in two opposite guide slots 88.
  • Recesses 87 and associated guide slots 88 serve to receive a respective contact lug 82.
  • the upper portion of the contact lug 82 is received by the guide slots 88.
  • contact springs 86 which are issued towards the inside are provided, which interact with the contact plates 56 of the plug 40.
  • the width of the contact lug 82 decreases toward the end of the area, is bent by 90 ° and is in the radial direction to the outside.
  • the end of the outwardly projecting radial region of the contact lug 82 is bent at the end laterally by 90 ° upwards.
  • the laterally angled upward regions of the contact lugs 82 serve as connection points for the coil punched grid 84, which is also bent at the desired connection points by 90 ° upwards.
  • Below the counterpart 80 is completed by a support surface 83. In the support surface 83 openings for fixing the receiving means 80 may be provided on the valve 16.
  • the plug 40 is shown in more detail.
  • the plug 40 is preferably cylindrical or cap-shaped.
  • the plug 40 has four upwardly open, but closed to the inside preferably rectangular-shaped recesses 55, which serve to receive adapted to the geometry of the recess 55 contact plates 56. These contact plates 56 are subsequently pushed onto the plug 40 and secured by hot caulking 58.
  • the plug 40 is arranged above a circuit carrier 20.
  • the substantially square-shaped circuit carrier 20 is equipped, for example, with an integrated circuit 24 and electronic components 26.
  • the integrated circuit 24 and the electronic components 26 are connected via electrical connections 27 to connection points 18 of a measuring bridge 19 of the pressure bridge. measuring cell 14 electrically contacted.
  • the contacting of the electrical connections 27 with the respective connection points 18 is preferably carried out by means of conductive adhesive.
  • the output signals of the integrated circuit 24 and the electronic components 26 are supplied by electrical connections 27 four Leitkleber- points 30.
  • the Leitkleber compris 30 are arranged on the upper side of the circuit substrate 20 and each separated by axially oriented webs 54 from each other.
  • the circuit carrier 20 is embodied, for example, as an injection molded part in so-called Ml D technology (Molded Interconnect Device).
  • Opposite latching lugs 52 are located on the two side surfaces of the circuit carrier 20. These latching lugs 52 cooperate with two openings 68 of the plug 40 in order to support a position-defined connection between circuit carrier 20 and plug 40.
  • the plug 40 is pushed onto the circuit carrier 20 until the latching lugs 52 engage in the openings 68.
  • the inner contour of the plug 40 is matched to the outer contour of the circuit carrier 20 with circuits 24 or electronic components 26 arranged thereon.
  • the pressure measuring cell 14 is positioned on the pole core of the valve 16.
  • the valve 16 may be part of a hydraulic block, which in turn is part of a brake system of a motor vehicle. This arrangement can be used, in particular, in the case of antilock braking systems or electronic stability systems.
  • the pressure measuring cell 14 has a measuring bridge 19, which detects the pressure of the fluid in the valve 16 based on the extent of a membrane. Measuring bridge 19 and pressure measuring cell 14 have, for example, four electrical connection points 18 on. The voltage applied to the connection points 18 e- lectric signals must be tapped and processed in a particularly compact form, to then supply them to further processing control units.
  • connection unit 10 In addition to a high degree of miniaturization, the connection unit 10 must also meet high tolerance requirements (primarily with regard to the length and obliquity of the valve 16). Furthermore, the fretting corrosion of the electrical contact should be minimized.
  • the separability of the additional controller is achieved by the pump housing.
  • the counterpart 80 on the valve spool preferably on the coil shell or at alternative coil design on the coil bottom.
  • the counterpart 80 could also be aligned on the winding carrier.
  • the counterpart 80 could also be designed as a cap, ie it could also be made closed at the top.
  • the contacting of the contact lugs 82 for further processing electronics via the coil punching grid 84.
  • a possibly necessary tolerance compensation can be additionally provided via a meandering 85 in the coil punching grid 84.
  • a connection through flexible cables would also be possible.
  • the inner diameter of the counterpart 80 is dimensioned such that the pressure measuring cell 14 or measuring bridge 19 and circuit carrier 20 arranged thereon are enclosed. Furthermore, the substantially cylindrical inner diameter of the counterpart 80 serves to receive the plug 40.
  • Plug 40 and counterpart 80 are connected together by the plug 40 passes into the interior of the receiving means 80.
  • the contact lug 82 rubs against the landing surface of the contact plate 56 and thus makes better contact possible, since any particles present in this area are scraped off and not pinched.
  • In the assembled state is now a contact between the pressure measuring cell 14 and via the electrical connections 27, optionally electronic components 26 and integrated circuit 24, contact plates 56, contact springs 86 of the terminal lugs 82 - reached with coil punched grid 84 and possibly a further processing control unit.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetically Actuated Valves (AREA)
  • Regulating Braking Force (AREA)

Abstract

Unité de raccordement (10) pour une cellule manométrique (14), comprenant au moins une contre-pièce (80) qui présente au moins un moyen de contact (82) permettant de prélever au moins un signal électrique influencé par la cellule manométrique (14). Un espace interne de la contre-pièce (80) sert au moins partiellement à loger une fiche (40) par laquelle le signal influencé par la cellule manométrique (14) parvient au moyen de contact (82) de la contre-pièce (80), le moyen de contact (82) sortant vers l'extérieur à travers un évidement (87).
PCT/EP2008/052236 2007-04-05 2008-02-25 Unité de raccordement pour une cellule manométrique Ceased WO2008122466A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007016476.0 2007-04-05
DE200710016476 DE102007016476A1 (de) 2007-04-05 2007-04-05 Anschlusseinheit für eine Druckmesszelle

Publications (1)

Publication Number Publication Date
WO2008122466A1 true WO2008122466A1 (fr) 2008-10-16

Family

ID=39358089

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/052236 Ceased WO2008122466A1 (fr) 2007-04-05 2008-02-25 Unité de raccordement pour une cellule manométrique

Country Status (2)

Country Link
DE (1) DE102007016476A1 (fr)
WO (1) WO2008122466A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002107246A (ja) * 2000-09-29 2002-04-10 Matsushita Electric Works Ltd 半導体センサ
DE10244760A1 (de) * 2002-02-26 2003-10-09 Continental Teves Ag & Co Ohg Drucksensorbaugruppe
US20060090569A1 (en) * 2004-03-30 2006-05-04 Denso Corporation Pressure sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004033846A1 (de) 2004-07-13 2006-02-09 Robert Bosch Gmbh Ventil mit integriertem Drucksensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002107246A (ja) * 2000-09-29 2002-04-10 Matsushita Electric Works Ltd 半導体センサ
DE10244760A1 (de) * 2002-02-26 2003-10-09 Continental Teves Ag & Co Ohg Drucksensorbaugruppe
US20060090569A1 (en) * 2004-03-30 2006-05-04 Denso Corporation Pressure sensor

Also Published As

Publication number Publication date
DE102007016476A1 (de) 2008-10-09

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