WO2011035770A1 - Verfahren zum verschweissen eines kunststoffgehäuses - Google Patents
Verfahren zum verschweissen eines kunststoffgehäuses Download PDFInfo
- Publication number
- WO2011035770A1 WO2011035770A1 PCT/DE2010/001121 DE2010001121W WO2011035770A1 WO 2011035770 A1 WO2011035770 A1 WO 2011035770A1 DE 2010001121 W DE2010001121 W DE 2010001121W WO 2011035770 A1 WO2011035770 A1 WO 2011035770A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- housing
- welding
- melt
- housing parts
- Prior art date
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
- B29C66/9292—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges in explicit relation to another variable, e.g. pressure diagrams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
- B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
- B29C65/7829—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint said distance pieces being integral with at least one of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/324—Avoiding burr formation
- B29C66/3242—Avoiding burr formation on the inside of a tubular or hollow article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/541—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms
- B29C66/5414—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles a substantially flat extra element being placed between and clamped by the joined hollow-preforms said substantially flat extra element being rigid, e.g. a plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
- B29C66/8416—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
- B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
- B29C66/92651—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops
- B29C66/92655—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by using stops by using several stops
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0239—Electronic boxes
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- 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
- H05K5/066—Hermetically-sealed casings sealed by fusion of the joining parts without bringing material; sealed by brazing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
- B29C66/1162—Single bevel to bevel joints, e.g. mitre joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0068—Permeability to liquids; Adsorption
- B29K2995/0069—Permeability to liquids; Adsorption non-permeable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3425—Printed circuits
Definitions
- the invention relates to a method for welding a plastic housing according to the preamble of claim 1.
- a welding of the plastic parts is now often used, wherein the introduction of heat energy by a laser is particularly preferred, because the heat energy can be particularly accurately introduced to the inner joint between the housing parts and a particularly uniform and on all sides tight welding process can be achieved.
- a circuit carrier such as a circuit board is arranged inside the housing, which in turn must be attached to a housing half, especially if acceleration sensitive sensors are arranged on this circuit substrate, which a correspondingly rigid attachment for receiving the sensed Need accelerations.
- the object of the present invention is to provide a method for welding a plastic housing, in which particularly inexpensive and yet secure the circuit board can be attached.
- An essential idea of the invention is that when welding the two housing parts to a peripheral edge resulting melt of the plastic reaches a predetermined edge zone of the circuit board and fixed after cooling the circuit board in the housing. This fixation is thus realized via a positive and positive embedding of the circuit board by the plastic flowing away melt directly when closing the housing in one operation and with a laser beam directly on the peripheral edge of the housing, so that a Schunietumformung of additional rivets inside the Can fall housing.
- the housing parts are preferably pressed together in order to achieve a good cross-linking at the weld seam between the two housing parts and a sufficiently strong flow of the melt.
- an oversize is provided in the welding area between the housing parts before welding and welding is only terminated when a predetermined deformation or a predetermined counterforce , preferably the end stop is reached.
- the excess is preferably dimensioned so that sufficient melt was generated by reducing this excess to fix the circuit board.
- the circuit board is inserted in a housing part and is provided on the other housing part a molding to the circuit board out, which reaches the circuit board at least at the end time of welding and keeps the circuit board during cooling in a predetermined position.
- this shape can be used as an end stop for the deformation and also form a cavity between the welding area, molding and circuit board, said cavity is at least partially filled during welding with the resulting melt.
- the melt can be given a preferred direction of flow to the circuit board out.
- This method is used to attach an electronic circuit board in a plastic housing preferably exclusively by means of the resulting during laser welding of the housing at its edge melt according to this method. Even with higher manufacturing tolerances or variations in board thicknesses, a secure, fixed fixture can be produced and is suitable for vibration free mounting of the PCB without additional components (e.g., screws, gluing) and is itself suitable for transmitting crash pulses to sensors on the circuit board. In parallel, of course, a waterproof housing closure.
- the invention is a new concept for closing a plastic housing with a lid, while fixing a printed circuit board during a welding operation, e.g. via laser.
- the goal is to fix the PCB so that it can be used for crash sensing.
- the preferred laser welding is always discussed below in the embodiments, however, the invention is also suitable for other forms of local welding, such as friction welding, ultrasonic welding, etc. Show it
- Fig. 1 First embodiment with the housing cover, housing base and circuit board at the beginning of the welding process
- Fig. 2 First embodiment with the housing cover, housing base and circuit board after completion of the welding process
- Fig. 3 Second embodiment with the housing cover, housing base and circuit board at the beginning of the welding process
- Fig. 4 Second embodiment with the housing cover, housing base and circuit board after completion of the welding process
- Fig. 5 further embodiment at the beginning of the welding process
- FIG. 6 shows an embodiment according to FIG. 5 after completion of the welding process
- FIG. 1 shows a first exemplary embodiment with the housing cover 1, the housing lower part 2 and the printed circuit board 3 at the beginning of the welding process.
- On the cover 1 is a molding 1.1 to the circuit board out, an outer nose 1.3 to the outside of the housing out and a receiving space 1.2 for melt between the outer nose 1.3 on the cover and a molding 2.1 provided on the housing base.
- the lower housing part 2 has a shape 2.1 with an oversize, this excess is compared to the outer nose 1.3 and / or with respect to the molding 1.1 on the lid and determines a defined volume of material melt, which is melted during welding and laterally pushed away and that at least partially, preferably even predominantly towards the circuit board.
- a laser beam penetrates the cover 1 at the location and direction shown and heats the molding 2.1 of the opposite housing lower part 2.
- the lid 1 is designed by appropriate choice of material at least in the area irradiated by the laser so that it lets pass a large portion of the laser light to the surface 2.1.1 of the opposite formation 2.1, while there by appropriate choice of material, for example. Contribution of soot particles, etc. a particularly high absorption and thus conversion of the laser light into heat and thus production of plastic melt is effected.
- the cover 1 has in this preferred embodiment, a molding 1.1 to the circuit board 3 out.
- This formation 1.1 has a distance from the welding zone or the molding 2.1, so that this distance forms a cavity 1.2 between welding area 2.1.1, molding 1.1 and circuit board 3 before welding, wherein this cavity 1.2 during welding at least partially with the resulting Melt 2.4 is filled, as this becomes particularly clear in comparison to Figure 2.
- a compression of the housing parts 1, 2 to each other and the welding is only terminated when a predetermined counterforce is reached or a predetermined Verpressweg the housing parts 1, 2 was covered to each other.
- a corresponding increase in the counterforce can be achieved, in particular, by providing an end stop 1.1, 1.3 on a housing part, and terminating the welding only when the end stop is reached.
- This end stop, the outer nose can take over 1.3 or preferably directed towards the circuit board molding 1.1.
- this shape 1.1 can keep the circuit board 3 during cooling in a predetermined position and will float or move prevents the circuit board 3. Since the plastic material also shrinks during cooling, the tension and fixation of the printed circuit board 3 in the housing is only improved.
- a chamfer or recess to the circuit board is formed to the melt 2.4 to specify a preferred direction of flow to the circuit board 3 back.
- the molding 2.1 is beveled on its upper side 2.1.1 over the entire surface and is preferably also the opposite side on the cover 1 designed as bevelled.
- a transverse force is produced in the cavity 1.2, which is preferably filled by the melt 2.4.
- grooves or similar recesses may be provided on the cover 1 or the molding 2.1, which also allow a correspondingly strong flow of the melt.
- Figures 3 and 4 show a modified second embodiment in which a portion of the melt is also directed specifically into a receiving space 2.3 out.
- This ur casing outside melted 2.5 fixes the outer nose 1.3 in addition to the molding 2.1 and seals the housing over a large area.
- FIGS. 5 and 6 show a further embodiment.
- the lower housing part 2 has a molding 2.1 with an oversize, this excess results in relation to the outer nose 1.3 and / or with respect to the molding 1.1 on the lid and determines a defined volume of material melt, which is melted during welding.
- a laser beam penetrates the cover 1 at the location and direction shown and heats the molding 2.1 of the opposite housing lower part 2.
- the lid 1 is designed by appropriate choice of material at least in the area irradiated by the laser so that it lets pass a large portion of the laser light to the surface 2.1.1 of the opposite formation 2.1, while there by appropriate choice of material, for example. Introduction of soot particles, etc. a particularly high absorption and thus conversion of the laser light into heat and thus production of plastic melt is effected.
- the cover 1 has a shape 1.1 to the circuit board 3 out.
- a compression of the housing parts 1, 2 to each other and the welding is only terminated when a predetermined counterforce is reached or a predetermined Verpressweg the housing parts 1, 2 was covered to each other.
- a corresponding increase in the counterforce is achieved when the molding 1.1 touches the circuit board 3 and a bias in the lid 1 is formed.
- this molding 1.1 can hold the circuit board 3 during cooling in a predetermined position and is a floating or moving the PCB 3 prevents. Since the plastic material also shrinks during cooling, the tension and fixation of the printed circuit board 3 in the housing is only improved.
- An outer nose 2.6 here formed on the lower part of the housing, additionally protects the weld seam and directly affects objects acting on it.
- the amount of melt produced and displaced by the contact pressure is significantly higher than in conventional welding methods and that a targeted material removal and reduction of the excess of the molding 2.1 takes place.
- the resulting melt during welding is thus guided by a given geometry mainly in the direction of the printed circuit board and fixes them thereby form-fitting.
- the circuit board is fixed by stops on the lid frictionally in the housing.
- the joining path is, by the stops, depending on the board thickness. He is for example at 0.4-0.8mm.
- This invention is based on the known laser welding of plastics.
- the basic geometry specified there was modified in such a way that the melt is not distributed uncontrollably in both directions but is specifically directed towards the interior of the housing.
- the advantage of this concept is that only one operation and a directed on the peripheral edge laser beam is necessary for attaching the circuit board and closing the housing. Furthermore, the mounting surface of the circuit board is much larger than in the conventional hot gas riveting, but the space requirement on the circuit board is lower, since the support surfaces affect only the edge zone of the circuit board. This edge zone in turn is defined as a barrier zone due to the separation of the individual circuit board from the benefit.
- this method is very reliable, since the sweat path is preferably controlled by means of a force evaluation. Therefore, the welding process can be stopped when the biasing force increases (after the stops on the printed circuit board are rested), without overstressing the printed circuit board.
- Figure 7 shows a typical force curve over the displacement s of the cover relative to the circuit board with a significant increase in the counterforce when reaching the circuit board in T1, which thus activates the shutdown in T2.
- a counterforce Fmax be given for shutdown, which is dimensioned so that it ensures just a tension between the circuit board and the lid.
- the change in the increase ie the relative change in the force over the adjustment path AF / AS or over the time AF / ⁇ can also be taken into account.
- the welding of a lid is much more material-saving than the casting of the circuit board.
- a welding process also saves considerable time, since the welded joint cools faster and does not have to dry.
- the electrical contacting of the circuit board can be done both in a conventional manner, with Pressfitein expertsn, as well as with single pins or direct connections.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080040761.XA CN102481726B (zh) | 2009-09-26 | 2010-09-24 | 用于焊接塑料壳体的方法 |
KR1020127008034A KR101804334B1 (ko) | 2009-09-26 | 2010-09-24 | 플라스틱제 케이스의 용접 방법 |
US13/497,282 US9030835B2 (en) | 2009-09-26 | 2010-09-24 | Method for welding a plastic housing |
DE112010003803T DE112010003803A5 (de) | 2009-09-26 | 2010-09-24 | Verfahren zum Verschweissen eines Kunststoffgehäuses |
EP10779209.5A EP2480396B1 (de) | 2009-09-26 | 2010-09-24 | Verfahren zum verschweissen eines kunststoffgehäuses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009043200A DE102009043200A1 (de) | 2009-09-26 | 2009-09-26 | Verfahren zum Verschweißen eines Kunststoffgehäuses |
DE102009043200.0 | 2009-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011035770A1 true WO2011035770A1 (de) | 2011-03-31 |
Family
ID=43480915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2010/001121 WO2011035770A1 (de) | 2009-09-26 | 2010-09-24 | Verfahren zum verschweissen eines kunststoffgehäuses |
Country Status (6)
Country | Link |
---|---|
US (1) | US9030835B2 (de) |
EP (1) | EP2480396B1 (de) |
KR (1) | KR101804334B1 (de) |
CN (1) | CN102481726B (de) |
DE (2) | DE102009043200A1 (de) |
WO (1) | WO2011035770A1 (de) |
Cited By (5)
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DE102011080178A1 (de) * | 2011-08-01 | 2013-02-07 | Robert Bosch Gmbh | Gehäuse für ein elektronisches Steuergerät |
DE102012005101A1 (de) * | 2012-03-14 | 2013-09-19 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Elektronik- und/oder Getriebegehäuse |
JP2014220384A (ja) * | 2013-05-08 | 2014-11-20 | 株式会社デンソー | 電子回路装置及びその製造方法 |
WO2015090711A1 (de) * | 2013-12-17 | 2015-06-25 | Robert Bosch Gmbh | Verfahren zum herstellen eines elektronikmoduls mit formschlüssig angeschlossenem gehäuseteilelement |
CN108979027A (zh) * | 2017-05-30 | 2018-12-11 | Sfs因泰克控股股份公司 | 自动行进的紧固设备和用于对密封幅材进行紧固的方法 |
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JP6167776B2 (ja) * | 2013-09-06 | 2017-07-26 | 浜名湖電装株式会社 | 3部材のレーザー溶着構造 |
US9787345B2 (en) * | 2014-03-31 | 2017-10-10 | Apple Inc. | Laser welding of transparent and opaque materials |
DE102014212296A1 (de) * | 2014-06-26 | 2015-12-31 | Conti Temic Microelectronic Gmbh | Sensormodul und Verfahren zum Herstellen eines Sensormoduls |
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ITUB20150956A1 (it) * | 2015-06-01 | 2016-12-01 | Automotive Lighting Italia S P A A Socio Unico | Metodo di realizzazione di un fanale automobilistico e relativo fanale automobilistico |
WO2016194321A1 (ja) * | 2015-06-03 | 2016-12-08 | 株式会社デンソー | 溶着方法 |
KR101740487B1 (ko) * | 2015-10-20 | 2017-05-29 | 삼성디스플레이 주식회사 | 박막 증착용 마스크 인장 용접 장치 |
US10477710B2 (en) * | 2017-01-13 | 2019-11-12 | Lite-On Electronics (Guangzhou) Limited | Electronic module with an improved shell and method for making the same |
US10375846B2 (en) * | 2017-01-13 | 2019-08-06 | Lite-On Electronics (Guangzhou) Limited | Housing having housing parts bondable together and method of manufacturing the same |
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US20200113068A1 (en) | 2018-08-10 | 2020-04-09 | Te Connectivity Germany Gmbh | Assembly with printed circuit board and method of fixing a printed circuit board |
GB202108666D0 (en) * | 2018-09-28 | 2021-08-04 | Hgf Ltd | Single-sided ultrasonic welding mechanism and related techniques |
JP2020128035A (ja) * | 2019-02-08 | 2020-08-27 | アイシン精機株式会社 | ケース及びその製造方法 |
CN110274372A (zh) * | 2019-05-10 | 2019-09-24 | 珠海格力电器股份有限公司 | 一种装配组件及水箱、空调、防漏水密封方法 |
KR102216477B1 (ko) * | 2019-07-12 | 2021-02-17 | 니덱모빌리티코리아 주식회사 | 레이저 융착을 이용해 결합된 차량용 사이렌 모듈 |
JP7313946B2 (ja) * | 2019-07-19 | 2023-07-25 | ニデックコンポーネンツ株式会社 | 電子部品とその製造方法 |
KR102623554B1 (ko) * | 2021-11-10 | 2024-01-11 | 동양피스톤 주식회사 | 수냉식 방열모듈 조립체 |
DE102022103523A1 (de) | 2022-02-15 | 2023-08-17 | HELLA GmbH & Co. KGaA | Verfahren zur Herstellung einer Kraftfahrzeugbaugruppe und Kraftfahrzeugbaugruppe |
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2010
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- 2010-09-24 US US13/497,282 patent/US9030835B2/en active Active
- 2010-09-24 DE DE112010003803T patent/DE112010003803A5/de not_active Withdrawn
- 2010-09-24 CN CN201080040761.XA patent/CN102481726B/zh active Active
- 2010-09-24 EP EP10779209.5A patent/EP2480396B1/de active Active
- 2010-09-24 KR KR1020127008034A patent/KR101804334B1/ko active IP Right Grant
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011080178A1 (de) * | 2011-08-01 | 2013-02-07 | Robert Bosch Gmbh | Gehäuse für ein elektronisches Steuergerät |
DE102012005101A1 (de) * | 2012-03-14 | 2013-09-19 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Elektronik- und/oder Getriebegehäuse |
US9025319B2 (en) | 2012-03-14 | 2015-05-05 | Brose Fahrzeugeile GmbH & Co. KG Wuerzburg | Adjusting drive of a motor vehicle adjusting element |
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CN108979027A (zh) * | 2017-05-30 | 2018-12-11 | Sfs因泰克控股股份公司 | 自动行进的紧固设备和用于对密封幅材进行紧固的方法 |
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Also Published As
Publication number | Publication date |
---|---|
KR101804334B1 (ko) | 2017-12-04 |
CN102481726A (zh) | 2012-05-30 |
US20130050966A1 (en) | 2013-02-28 |
KR20120078707A (ko) | 2012-07-10 |
US9030835B2 (en) | 2015-05-12 |
EP2480396A1 (de) | 2012-08-01 |
EP2480396B1 (de) | 2017-05-17 |
DE102009043200A1 (de) | 2011-04-21 |
CN102481726B (zh) | 2015-05-13 |
DE112010003803A5 (de) | 2012-07-05 |
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