GB2307750A - Control device having a pressure sensor - Google Patents

Control device having a pressure sensor Download PDF

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Publication number
GB2307750A
GB2307750A GB9624762A GB9624762A GB2307750A GB 2307750 A GB2307750 A GB 2307750A GB 9624762 A GB9624762 A GB 9624762A GB 9624762 A GB9624762 A GB 9624762A GB 2307750 A GB2307750 A GB 2307750A
Authority
GB
United Kingdom
Prior art keywords
control device
housing
membrane
pressure
pressure sensor
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.)
Granted
Application number
GB9624762A
Other versions
GB2307750B (en
GB9624762D0 (en
Inventor
Josef Dirmeyer
Gerhard Mader
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB9624762D0 publication Critical patent/GB9624762D0/en
Publication of GB2307750A publication Critical patent/GB2307750A/en
Application granted granted Critical
Publication of GB2307750B publication Critical patent/GB2307750B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • 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
    • G01L19/003—Fluidic connecting means using a detachable interface or adapter between the process medium and the pressure gauge
    • 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
    • G01L19/0061—Electrical connection means
    • G01L19/0084—Electrical connection means to the outside of the housing
    • 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
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0627—Protection against aggressive medium in general
    • G01L19/0645—Protection against aggressive medium in general using isolation membranes, specially adapted for protection
    • 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
    • G01L19/142—Multiple part housings
    • 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
    • G01L19/148—Details about the circuit board integration, e.g. integrated with the diaphragm surface or encapsulation
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
    • H05K3/202—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern using self-supporting metal foil pattern
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
    • H05K5/0069—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units having connector relating features for connecting the connector pins with the PCB or for mounting the connector body with the housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/06—Hermetically-sealed casings
    • H05K5/068—Hermetically-sealed casings having a pressure compensation device, e.g. membrane
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings
    • H05K9/002—Casings with localised screening
    • H05K9/0039—Galvanic coupling of ground layer on printed circuit board [PCB] to conductive casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10409—Screws
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10431—Details of mounted components
    • H05K2201/10598—Means for fastening a component, a casing or a heat sink whereby a pressure is exerted on the component towards the PCB
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/325—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by abutting or pinching, i.e. without alloying process; mechanical auxiliary parts therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Description

2307750 is CONTROL DEVICE The invention relates to a control device for
sensing a pressure and outputting a signal in response to the pressure sensed, and in particular to a control device for actuating a restraining means in a vehicle.
A control device, which contains an electric circuit that is arranged in a housing and has a pressure sensor and which can be connected to cables for example, by way of a plug-in connector which is integrated in the housing, can be used in technical fields in which pressure measurement is required. a technical field is automotive engineering which places particularly high demands on such a control device with regard to its compactness/size, insensitivity to environmental influences, reliability and costs of production.
Lately, such control devices have been used to activate restraining means, such as air bags in a motor vehicle: consequently, for example, such a control device is arranged in a side portion of the motor vehicle such as the driver's door. The pressure sensor, in this connection, picks up a rise in air pressure in a chamber of the side door caused by a deformation of the side door in consequence of a side impact and, depending upon the severity of the impact, releases or actuates a side air bag or other restraining means of the vehicle.
In a prior international application (PCT/DE 95/00907), it is proposed that a silicon pressure sensor be arranged on a conventional printedcircuit board. The printed-circuit board with the pressure sensor is arranged in a housing with an opening. Between the housing opening and the printed-circuit board, a sleeve made of plastics material surrounds the pressure sensor. The sleeve is sealed with a membrane at the level of the housing opening so that the sleeve, membrane, printed-circuit board and pressure sensor define an air-filled space which has a small volume and which transmits a pressure signal, applied to the membrane, to the pressure sensor in an almost unadulterated manner. Plug pins of a plug-in connector, which are bent at right angles, are guided through the housing and are soldered together with the printed-circuit board.
Figure 5 shows such a control device for the purpose of actuating restraining means in a vehicle. Figure 5 shows a cased amplifier 23; a pressure sensor 21 arranged on a holder 211; a filter capacitor 22; and plug pins 42 as separate bent components, which are connected to a conventional printed-circuit board 6. As can be seen, a small volume for the transmission of pressure is obtained as a result of a sleeve 7 which surrounds the pressure sensor 21 and has a membrane 322.
In consequence of the comparatively large dimensions of this known control device caused in particular by the previously described development of the plug-in connector, the volume of the interior space of the control device is too large to enable it to be used for the transmission of pressure between the housing opening, which is sealed with the membrane, and the pressure sensor without thereby having to endure a significant attenuation or adulteration of the signal. For this reason, the sleeve and the membrane which is formed in one piece therewith is clamped over the pressure sensor between the printed-circuit board and the housing opening, and the volume for the transmission of pressure is thereby designed to be as small as possible. This solution certainly guarantees good signal transmission, yet on account of the components which are additionally required is costly and requires outlay in terms of assembly.
The present invention seeks to provide a control device which avoids the disadvantages of the known control device.
According to the present invention, there is provided a control device for sensing a pressure and outputting a signal in response to the pressure sensed, comprising a housing, having an area in the housing wall formed as a membrane for the purposes of transmission of pressure, and an electric circuit arranged in the housing, the electric circuit having a plurality of components, including a pressure sensor connected in an electrically conductive manner by way of a metal strip structure, the metal strip structure containing plug pins to form a plug-in connector.
In this connection, components of the electric circuit, such as, for example, the pressure sensor itself, are connected in an electrically conductive manner by way of a metal strip structure formed, for example, by a structure stamped out of a metal strip. The stamped structure contains plug pins of a plug-in connector. As a result of using such a stamped structure (can also be described as a "stamped grid", or a Illeadframell) instead of a conventional printedcircuit board, the airfilled interior space volume of the control device is clearly reduced. In the area of the plug-in connector, as a result of the plug pins which are formed in one piece with the stamped structure, the horizontal extent of the control device is reduced.
It is consequently possible to form one area in the housing wall of the housing as a membrane and use the diminished interior space volume of the control device for the purposes of transmission of pressure without, by means of additional components, having to provide a delimited space in the control device for the transmission of pressure. Excellent transmission of is pressure signals is achieved as the membrane, which is arranged on the housing, provides protection against environmental influences and thus the pressure sensor membrane itself can remain unprotected. It is therefore also not necessary to provide the pressure sensor membrane with a protective layer which intensifies the inertia of the pressure sensor membrane so that the pressure sensor no longer picks up pressure, but does even pick up accelerations. If the pressure sensor is used in a vehicle for example, it is exposed to accelerations which would therefore enter its output signal.
A receiving portion of the plug-in connector for a mating connector is provided/injection-moulded directly on the stamped structure, that is, as close as possible to the electric circuit. Furthermore, filter capacitors for the purposes of electromagnetic screening can also be arranged directly at the place of entry of the plug pins into the housing so that conventional space-occupying filter plugs are superfluous. Thus, not only is the interior space volume reduced with the consequences which have been previously mentioned, but filter capacitors arranged in such a way also guarantee optimum protection against electromagnetic irradiation, as the interior of the control device no longer has any non-screened printed conductors/plug pins acting as antennae.
Furthermore, the stamped structure can either have, in the interior of the housing or - if the stamped structure is guided through the housing outside the housing, one or a plurality of bores by way of which the control device is secured, for example, to a carrier in the motor vehicle. Such securement is simultaneously used as a frame contact. As a result, compared with known control devices one further component which previously guaranteed the connection between frame on a conventional printed-circuit board and an external frame terminal is dispensed with. In addition, as a result of this measure the extent of the control device and thus its interior space volume are reduced.
is The stamped structure preferably also has planar areas for the purposes of electromagnetic screening, which areas are formed in one piece with areas of the stamped structure which are used as printed conductors for the electrically conductive connection of the components. This further development of the invention also reduces the extent of the control device and thus its interior space volume as now separate screening plates and additional frame layers in the printed circuit boards are superfluous.
Integrated circuits are preferably arranged on the stamped structure in a non-cased manner. The advantages of the previously mentioned further developments also hold good for this further development of the invention.
The use of a stamped structure requires, moreover, that printed conductors of the stamped structure be guided so that they do not cross. This leads to a situation where comparatively few components can be arranged on such a stamped structure and increasingly large-scale integrated circuits such as multichip modules are used, this in turn reducing the spatial extent of the electric circuit.
Additional further developments of the invention are characterised in the subclaims.
For a better understanding of the present invention, and to show how it may be brought into effdct, reference will now be made, by way of example, to the accompanying drawings, in which:
Figure 1 shows a stamped structure for a control device according to the invention; Figure 2 shows a plan view of a control device according to the invention; Figure 3 shows a cross-sectional view, along the line A-A, of the control device in accordance with the invention according to Figure 2; Figure 4 shows a cross-sectional view of the is control device in accordance with the invention according to Figure 2 along the line B-B; and Figure 5 shows a known control device.
Figure 1 shows a structure 1 stamped out of a metal strip 12 as used in a control device according to the invention. Adjoining this, on the righthand side of the broken line, there is a second structure stamped out of the metal strip 1.2. The stamped structure 1 contains printed conductors 11 which connect electrical components 2 and a pressure sensor 21 with each other in an electrically conductive manner and are used at the same time to secure the components 2, 21. Connection pins of the components 2, 21 are guided through holes of the stamped structure 1 and then soldered on the rear side of the stamped structure 1 or they are bent over in such a way as to enable them to be soldered on the front side of the stamped structure 1. The stamped structure 1 has, furthermore, plug pins 42 of a plug-in connector. Planar areas 13 are used for the purposes of electromagnetic screening and are used in this exemplary embodiment as a framework of the stamped structure 1. Securement holes 14 are used to transport the metal strip 12 further on the conveyor belt for production purposes. Planar areas of the metal strip can also be arranged inside the stamped structure between printed conductors or be bent over as edge areas of the stamped structure so that optimum protection against electromagnetic irradiation is brought about. The securement holes can be used not only to convey the metal strip on the conveyor belt, is but also to secure the respective control device with the stamped structure to a carrier. For the purposes of improved contacting, at least areas of the plug pins can be coated with gold.
Such a stamped structure is produced by stamping a grid structure out of the metal strip. Thereupon, plastics bridges are injection-moulded around areas of this grid, and printed-conductor breaks are stamped out of the grid structure so that the individual printed conductors are insulated from each other, as required. Before or after the step of production last mentioned, the components are placed on the stamped structure. The plastics bridges afford the necessary mechanical hold for the individual printed conductors.
Figure 2 shows a plan view of a control device according to the invention having a housing 3 with a lower housing portion 31 which is used as a carrier of a stamped structure 1, of which merely the plug pins 42 indicated in broken lines and one portion 15 protruding from the housing 3 are visible. The lower housing portion 31 contains a plug-in connector 4 with a receiving portion 41 for a mating connector. The lower housing portion 31 is closed, by way of locating hooks 311, by means of a housing cover 32, of which mainly a protective plate 324 is visible. At two points, the stamped structure 1 protrudes from the lower housing portion 31 and is secured to an external carrier 5 with screws 51.
Figure 3 shows a cross-sectional view of the control device according to Figure 2 along the line of intersection A-A. In this case, in particular the onepiece formation of the plug pins 42 with the stamped structure 1 is evident. A non-cased pressure sensor 21, a filter capacitor 22, a noncased amplifier 23 and also further components 2 are provided on the stamped structure 1. The pressure sensor 21 can be formed as is any pressure sensor, in particular, however, as a silicon pressure sensor which can also accommodate further portion of an electric circuit in its substrate. Such an integrated circuit with a pressure sensor 21 is then bonded directly onto the stamped structure 1 as a non-cased integrated circuit, as indicated in Figure 3.
Since protection against electromagnetic irradiation of the electric circuit of the control device is guaranteed by the planar areas of the stamped structure, the housing of the control device is preferably made of plastics material. In this connection, for example, the lower housing portion 31 including the receiving portion 41 of the plug-in connector 4 is injection-moulded around the stamped structure 1. The lower housing portion 31 is closed by means of the housing cover 32, which is also made of plastics material, in a watertight manner in any way desired. In the exemplary embodiment, this connection is realized by means of locating hooks 311 with a sealing ring 33 inserted between the housing cover 32 and the lower housing portion 31, in which case the sealing ring 33 can also be injectionmoulded as plastics material onto one of the housing halves 31, 32.
A membrane 322 is fixedly connected to the housing cover 32. The membrane 322 can, for example, be made of non-rigid plastics material and thus be injectionmoulded onto an opening -121 of the housing cover 32. The membrane 322 can, however, also be formed in one piece with the housing cover 32. The housing cover 32 contains for this purpose an area which is used as the membrane 322 and which is of less thickness than the housing wall 323 of the housing cover 32.
The membrane 322 is provided so as to protect the interior space of the control device, and in particular to protect the pressure sensor 21 and the electric circuit from environmental influences and corrosion. As a result, the membrane 322 is impermeable to water in the same way that its connection with the housing cover 32 is also formed so as to be impermeable to water. The membrane 322 is, however, preferably slightly permeable to air so that, for example, an increase in pressure caused by an increase in temperature in the interior space of the control device is compensated for by pressure compensation with the environment by way of the membrane 322. This pressure compensation is then effected at long time intervals for example in the minute range - compared with the duration of significant pressure signals which are picked up.
The pressure signals which are picked up are not attenuated nor adulterated by the membrane 322. The membrane 322 is made, in this connection, for example, from an elastic plastics material such as silicone rubber.
The membrane 322 preferably has a bead 3221 in its outer peripheral portion, by way of which bead the membrane 322 can expand or contract within certain limits in order to compensate thereby for tensions in the membrane 322 caused by changing temperatures or a varying ambient pressure. As a result, an almost constant restoring force acts on the deflected membrane 322 over the whole area of its deflection so that the sensitivity of the pressure sensor 21 is not affected by changes in ambient temperature or pressure.
The membrane 322, shown in Figure 3, is formed over a comparatively large area and thus transmits a predsure signal to the pressure sensor 21 in a particularly efficient manner. A protective plate 324 is arranged above the membrane 322 and is used as water splash protection and also to prevent the membrane 322 from being touched.
Figure 4 shows the securement of the control device to the carrier 5 by way of the portion 15 of the stamped structure 1, which protrudes from the housing 3, by way of a screw connection 51. As a result, the frame potential of the stamped structure 1 is connected to the potential of the carrier 5. If the control device according to the invention is used as a control device for the purpose of actuating a side air bag in a motor vehicle, the control device is secured in a vehicle door, or to a carrier/holder of the vehicle door. of course, the invention is not limited to use in vehicles, and may be used in any application in which pressure is to be sensed and a signal output in response to the sensed pressure.
It is also possible to fit the stamped structure 1 with components 2 and with the pressure sensor 21 in the lower housing portion 31, which already contains the stamped structure 1, without a housing cover 32.
is is

Claims (13)

1. A control device for sensing a pressure and outputting a signal in response to the pressure sensed, comprising a housing, having an area in the housing wall formed as a membrane for the purposes of transmission of pressure, and an electric circuit arranged in the housing, the electric circuit having a plurality of components, including a pressure sensor connected in an electrically conductive manner by way of a metal strip structure, the metal strip structure containing plug pins to form a plug-in connector.
2. A control device according to claim 1, wherein the housing is made of plastics material.
A control device according to claim 1 or 2, wherein a receiving portion of the plug-in connector for receiving a mating connector and a portion of the housing are formed in one piece.
4. A control device according to any preceding claim, in which the membrane is formed in one piece with the housing and is of less thickness than the housing wall.
5. A control device according to one of claims 1-3, wherein the housing has an opening over which there is arranged a membrane which is connected to the housing in a watertight manner.
6. A control device according to any preceding claim, wherein the pressure sensor is an integrated circuit and is arranged on the metal strip structure as a non-cased integrated circuit.
7. A control device according to any preceding claim, wherein at least one portion of the metal strip structure protrudes from the housing and in that the control device is secured with this portion to a carrier.
8. A control device according to any preceding claim, in which the metal strip structure has planar areas for the purposes of electromagnetic screening.
9. A control device as claimed in any preceding claim wherein the membrane is formed of non-rigid plastics material.
10. A control device according to any preceding claim where the membrane is formed from a material which is air-permeable, and water impermeable.
11. A control device substantially as herein described with reference to Figures 1-4 of the accompanying drawings.
12. Control device, in particular for actuating a restraining means in a vehicle, having a housing with a plug-in connector, and having an electric circuit, which is arranged in the housing and has a pressure sensor, characterised in that components of the electric circuit are connected in an electrically conductive manner by way of a structure stamped out of a metal strip, in that the stamped structure contains plug pins of the plug-in connector, and in that an area in the housing wall is formed as a membrane for the purposes of transmission of pressure.
13. A vehicle including a control device as claimed in any preceding claim.
GB9624762A 1995-12-01 1996-11-28 Control device Expired - Fee Related GB2307750B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995144974 DE19544974C1 (en) 1995-12-01 1995-12-01 Control device, in particular for triggering a restraint in a vehicle

Publications (3)

Publication Number Publication Date
GB9624762D0 GB9624762D0 (en) 1997-01-15
GB2307750A true GB2307750A (en) 1997-06-04
GB2307750B GB2307750B (en) 1999-02-10

Family

ID=7779005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9624762A Expired - Fee Related GB2307750B (en) 1995-12-01 1996-11-28 Control device

Country Status (3)

Country Link
DE (1) DE19544974C1 (en)
FR (1) FR2741990B1 (en)
GB (1) GB2307750B (en)

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ES2189700A1 (en) * 2001-03-29 2003-07-01 Honda Motor Co Ltd Control unit incorporating pressure sensor
US7708102B2 (en) 2005-09-05 2010-05-04 Denso Corporation Collision detecting system
EP3975673A1 (en) * 2020-09-28 2022-03-30 Aptiv Technologies Limited Enclosure for electronics

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DE19803359A1 (en) * 1998-01-29 1999-08-12 Telefunken Microelectron Case for direction-sensitive component, e.g. position sensor or accelerometer in motor vehicle
DE19830227A1 (en) * 1998-07-07 2000-01-13 Trw Automotive Electron & Comp Housing for an electronics unit, in particular for an airbag control unit
DE29918914U1 (en) 1999-10-27 2000-03-09 Trw Automotive Electron & Comp Control device for occupant restraint systems in vehicles
DE10106311B4 (en) * 2001-02-12 2006-06-22 Siemens Ag Device for attachment to a vehicle door
DE10144323A1 (en) * 2001-09-10 2003-03-27 Delphi Tech Inc Electrical circuit unit, in particular power module, and method for the production thereof
FR2838188A1 (en) * 2002-06-14 2003-10-10 Siemens Vdo Automotive Air pressure sensor for monitoring tire pressures, comprises box which contains electronic pressure measuring components in the base and has displaceable lid with flexible membrane
DE10335015A1 (en) * 2003-07-31 2005-02-24 Robert Bosch Gmbh Method for fixing electrical conductor tracks on a base plate and arrangement of conductor tracks and base plate
JP4479629B2 (en) * 2005-08-31 2010-06-09 株式会社デンソー Collision detection system
DE102006024163A1 (en) * 2006-05-22 2007-11-29 Conti Temic Microelectronic Gmbh Electrical assembly for a vehicle comprises a rigid connecting part arranged in/on a mounting flange in a housing, fixed to a support and connected in a mechanically rigid manner to a structure-borne noise/acceleration sensor
DE102006047695B4 (en) * 2006-10-09 2017-07-06 Continental Automotive Gmbh Electronic module for controlling a passenger and / or occupant protection system of a vehicle
DE102006053111A1 (en) * 2006-11-10 2008-05-15 Robert Bosch Gmbh Pressure equalization device for a housing
DE102008001393A1 (en) * 2008-04-25 2009-10-29 Robert Bosch Gmbh Air pressure sensor for impact detection
DE102009026444A1 (en) * 2009-05-25 2010-12-02 Robert Bosch Gmbh Control unit with pressure sensor
EP2702844B1 (en) * 2011-04-27 2018-03-21 Pierburg Pump Technology GmbH Housing unit for electrical components for use in the automobile sector
DE102013216718A1 (en) * 2013-08-22 2015-02-26 Continental Automotive Gmbh Impact sensor with elastically deformable hose and pressure sensor and two-stage pressure compensation
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CN105588680A (en) * 2015-12-14 2016-05-18 中国北方发动机研究所(天津) Air circuit isolation device for built-in atmosphere pressure sensor of diesel engine controller
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US7708102B2 (en) 2005-09-05 2010-05-04 Denso Corporation Collision detecting system
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Also Published As

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FR2741990B1 (en) 1999-02-05
GB2307750B (en) 1999-02-10
DE19544974C1 (en) 1997-05-22
GB9624762D0 (en) 1997-01-15
FR2741990A1 (en) 1997-06-06

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