CN102386490B - Arrangements of electric connection - Google Patents
Arrangements of electric connection Download PDFInfo
- Publication number
- CN102386490B CN102386490B CN201110233364.0A CN201110233364A CN102386490B CN 102386490 B CN102386490 B CN 102386490B CN 201110233364 A CN201110233364 A CN 201110233364A CN 102386490 B CN102386490 B CN 102386490B
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- arrangements
- circuit
- base plate
- guide groove
- control appliance
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Classifications
-
- 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
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
-
- 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
- H05K2201/10439—Position of a single component
- H05K2201/10446—Mounted on an edge
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1305—Moulding and encapsulation
- H05K2203/1316—Moulded encapsulation of mounted components
-
- 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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1305—Moulding and encapsulation
- H05K2203/1327—Moulding over PCB locally or completely
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
- H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
-
- 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
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/361—Assembling flexible printed circuits with other printed circuits
-
- 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
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4007—Surface contacts, e.g. bumps
Abstract
The present invention relates to a kind of arrangements of electric connection, its control appliance, particularly motor and/or gearing control device and flexible circuit carrier, particularly flat circuit or there is multiple circuit guide groove the printed conductor of electric insulation base plate between.According to the present invention, this control appliance has the interface ball that multiple thermoplastic conductive plastics are formed, wherein said interface ball in order to realize electrical connection respectively can with the conducting sphere of printed conductor and/or respectively can with the circuit guide groove thermal welding of base plate, wherein conducting sphere and circuit guide groove conductive plastics are formed.The invention still further relates to a kind of arrangements of electric connection, it is between control appliance and the base plate with multiple circuit guide groove.According to the present invention, this control appliance has multiple metal joint without interface ball, these metal joints be realize electrical connection respectively can in the circuit guide groove of base plate and/or conductive transition heat fusing, wherein circuit guide groove is formed with conductive plastics and the material of base plate electric insulation is formed equally.
Description
Technical field
The present invention relates to a kind of arrangements of electric connection.
Background technology
The importance of the electronic system component in automobile increases day by day.Here provide especially control electronics with for the guarantee of the reliable electrical contact of the external electrical connections---such as with the electromechanical integration module for transmission control device---of transducer, actuator, plug jockey etc., very difficulty under this severe environmental conditions in the car.Electrical connection between the circuit carrier comprised in control appliance at present and outside wiring " AVT " (outside interconnection technique) is carried out frequently by closing line, and this closing line makes the tie point of circuit carrier be electrically connected with the connecting pin of the assembling of control appliance housing.Ensure tight hermetically enclosed relative to harmful environmental impact---such as chemical corrosion medium, humidity, temperature fluctuation and extreme machinery accelerate or slows down---of control appliance thus.Circuit arrangement is such as multilayer board or so-called " LTCC " mixing module it being configured with electronic circuit (" Low-Temprature-Cofired-Ceramic (LTCC) ").
In addition known, by closing line by circuit carrier directly and circuit carrier, particularly flexible flat circuit (so-called " FPC ", FlexiblePrintedCircuit (flexible printed circuit)) connect.
From WO98/44593, known circuit carrier is electrically connected with the one of flexible printed conductor carrier, and wherein electrical contact is undertaken by electrically-conducting adhesive in overlapping region.Here shortcoming is, must apply this adhesive in this overlapping region with the amount of accurate measurement with in reproducible position.DE19832062A1 discloses a kind of control appliance for automobile, and wherein the contact element of circuit carrier to be conducted electricity with flexible printed conductor carrier by Laser Welding contact or laser braze welding point and is connected in contact section.The generation of Laser Welding contact or laser braze welding point makes to produce high heat input in the contact areas
, the additional auxiliary agent of solder flux form wherein must be prepared in advance when laser braze welding process.
Summary of the invention
A kind of printed conductor at control appliance, particularly motor and/or gearing control device and flexible circuit carrier, particularly multipole flat circuit is disclosed or have multiple circuit guide groove (Leitungsf ü hrung) base plate printed conductor between arrangements of electric connection.
According to the present invention, control appliance has multiple interface ball (Interfaceball), these interface balls thermoplastic conductive plastics are formed, wherein interface ball in order to realize being electrically connected can respectively with the conducting sphere of printed conductor and/or respectively with the circuit guide groove thermal welding of base plate, wherein conducting sphere and circuit guide groove conductive plastics are formed.
Due in the interface ball formed with thermoplastic conductive plastics on control appliance and the conducting sphere correspondingly constructed in the region of flexible circuit guide groove or the region at base plate equally with the circuit guide groove that conductive plastics is formed, electrical contact can not be carried out hot melt by docking port ball and conducting sphere simply and fetches and carry out in used additives ground under the relatively low fusion temperature of used thermoplastic conductive plastics.
From soldering with weld different, the heat in contact area and therefore adjacent assembly input is minimized, because the temperature required for melting heat plasticity conductive plastics is usually less than 250 DEG C to 400 DEG C.This effect also strengthens in the following way, namely to conduct electricity in contact pairs connect interface ball and conducting sphere be not fully but be only melted in the join domain of small size.
Because without any need for metal promoter, so can also there is not any electrochemical element causing the parasitism of interference voltage in join domain.Avoid soldering places undesirably formed " antenna " or needle-like monocrystalline, weld and soldering time metal sputtering and when engaging known etching problem.In addition conductive plastics ensure that the comparatively large contact surface of the transition resistance with reduction, and the transition resistance of described reduction can accurately mate the current strength correspondingly will transmitted when needed.
The conductive plastics particle enough conducted electricity is formed, and these particles embed evenly distributedly in the matrix be made up of the thermoplastic material be suitable for or basic material.For form that matrix can consider to have enough machinery with all known thermoplastics of the bearing capacity of heat.
Metallic particles and/or suitable conductive nano-particles such as can be used, the nanometer microtubule be such as made up of carbon as conductive particle.In order to improve the mechanical attachment of conductive plastics in metal substrate, particularly metal ferrule, flat contact pin, connecting pin, metal bump, flexible flat circuit etc. when manufacturing contact ball, can to these contact the machinery that ball is suitable for, chemistry and/or the surface treatment, the particularly surface treatment of plasma irradiating processing form of physics.
Printed conductor on base plate and interface ball have the geometry of circular or rectangle respectively, to realize electric transition resistance little as far as possible by enough large transition face.
Described control appliance has the housing for holding at least one circuit carrier usually, wherein fix on this circuit carrier multiple electronics and/or electromagnetism and/or machinery parts, and these parts are electrically connected to each other.Control appliance is such as transmission or motor control unit, so-called " TCU "/" MCU " (TransmissionControlUnit (transmission control unit) or MotorControlUnit (motor control unit)), its under extreme environmental condition of being everlasting-namely extra high temperature fluctuation, under humidity and chemical corrosion medium-use.LTCC (Low-Temprature-Cofired-Ceramic, LTCC) can be implemented or be embodied as to circuit carrier such as with the epoxy resin board of the copper printed conductor with printing.Additionally, control appliance can have the preferred base plate arranged in downside for mechanical consolidation, and this base plate is used as heat sink simultaneously.
For allowing to the function realizing control appliance, this control appliance must be connected with multiple actuator and sensor electrical.This connection is such as undertaken by known flat circuit, and wherein the copper wire of multiple printed conductor shape or heart yearn preferably extend and in parallel with each other at interval in both sides with coverlay and the covering of lower insulation coverlay of insulating.Arrangements of electric connection of the present invention especially manufacturing technology can process the electrical connection reliably realized between this flexible flat circuit and control appliance simply, inexpensively and in addition, this electrical connection can seal in addition completely closely, makes the environmental impact be harmful to not have negative effect for electrical contact.
In addition disclose a kind of arrangements of electric connection, this arrangements of electric connection is in be had without between the control appliance of the metal joint of interface ball and the base plate with multiple circuit guide groove.
According to the present invention, control appliance has multiple metal joint, and these metal joints are realize electrical connection to melt in the circuit guide groove of base plate and/or conductive transition respectively, and wherein said circuit guide groove conductive plastics is formed.
Implement control appliance in modification in one and there is metal joint, the such as metal joint of round pin form, described metal joint does not have interface ball and directly melts in the OBL conductive transition be made up of conductive plastics or conductor guide groove to realize electrical connection.
Accompanying drawing explanation
The present invention will be described in detail with reference to the accompanying drawings below.
Fig. 1 illustrates the arrangements of electric connection between flexible flat circuit (FPC) and (transmission) control appliance (TCU) of the present invention;
Fig. 2 illustrates the enforcement modification of the jockey between the circuit carrier in flat circuit and control appliance;
Fig. 3 illustrates the detailed view of the jockey according to Fig. 2;
Fig. 4 illustrates another enforcement modification of the jockey between control appliance and the base plate supporting this control appliance;
Fig. 5 illustrates the schematic plan of Fig. 4;
Fig. 6 illustrates another enforcement modification of arrangements of electric connection;
Fig. 7 illustrates the enforcement modification of the jockey with additional insulation flat circuit;
Fig. 8 illustrates the schematic plan of Fig. 7;
Fig. 9 illustrates the jockey being in contact condition according to Fig. 7;
Figure 10 illustrates and has metal joint and another of the arrangements of electric connection be connected without the control appliance of interface ball implements modification;
Figure 11 illustrates the schematic side elevation being in the jockey of non-contact condition according to Figure 10;
Figure 12 illustrates the schematic section cutaway view being in the jockey of status of electrically connecting according to the optional cover plate of the utilization of Figure 10;
Figure 13 illustrates and has metal joint and another of the arrangements of electric connection be connected without the control appliance of interface ball implements modification;
Figure 14 illustrates another enforcement modification of the jockey of the control appliance with metal joint;
Figure 15 illustrates another enforcement modification of the jockey with the interface ball be integrated in control appliance.
Embodiment
Fig. 1 illustrates that first of the arrangements of electric connection for flexible flat circuit (FPC) being electrically connected to control appliance (TCU) of the present invention implements modification.
Control appliance 10 known flexible flat circuit 12 conduction connects.Flat circuit 12 has (copper) printed conductor 14 being positioned at inside, and this printed conductor 14 is that electric insulation uses plastic film 16 and lower plastic film 18 to cover in both sides.Plastic film 16,18 is the plastic material of high electric insulation between 25 μm to 250 μm, such as polyimides or polyester material manufacture with thickness.Plastic film 16,18 is comprehensively bonding with printed conductor 14 with the not shown adhesive layer be made up of acrylates or epoxides (Acryl-or Epoxidleber).Printed conductor 14 represent multiple preferably and the spaced apart distribution of its uniform parallel-here in order to not shown for the purpose of clarity-copper conductor of better drawing, described copper conductor has the material thickness respectively between 30 μm to 300 μm.
In join domain 20, lower plastic film 18 is had vacant position or is removed, and arranges conducting sphere 22, and that this conducting sphere conducts electricity according to the present invention, suitable thermoplastic material or conductive plastics are formed.Exist to conduct electricity between printed conductor 14 with conducting sphere 22 and be connected.Control appliance 10 arranges interface ball 24, this interface ball with comprise in control appliance 10-here unshowned electronics and/or electromechanics-same conduction of parts connect.Conducting sphere and interface ball 22,24 have the cross-sectional geometry of sub-circular or oval-shaped profile shape respectively.Alternatively, conducting sphere and interface ball 22,24 also can have spatial form that is rectangular, cuboidal or spherical segment.
Be connected for setting up to conduct electricity between flat circuit 12 with control appliance 10, by conducting sphere 22 and interface ball 24 after they cover mutually in fusion zone 26 with hot mode welding.Only need the input of smaller heat for this reason, because the thermoplastic conductive plastics used are usually just enough softening at lower than the temperature of 300 DEG C, and conducting sphere 22 or interface ball 24 all not exclusively melts in addition.The infrared radiation that the welding of these balls such as can be carried by pointwise and/or laser emission are carried out.To this, described radiation can be focused and/or by covering crested.Alternatively, position can also be put accurately carry hot-air or use photoconduction to carry out transmission laser radiation.In addition heating element can be utilized or by can with so-called
the similar method of soldering process carries out heat input.With produce the laser welding that contact of pointwise or laser braze welding method different, the electrical connection district between conductive plastics ball be here constructed to smooth, particularly whole plane is circular or rectangle, occurs the transition resistance of reduction thus.In addition the plane of bonding pad extends and can be adapted to current strength given in advance neatly.
Preferred conducting sphere 22 and interface ball 24 are all formed with identical conductive plastics.Alternatively, the thermoplastics of different conductions can also be used.
In order to control appliance 10 is electrically connected completely with flat circuit 12, welding or weld multiple interface ball and affiliated conducting sphere.Except the input of little heat, an important advantage of jockey of the present invention is, these balls just can be configured on flat circuit or control appliance at place of manufacturer, make need not prepare any auxiliary agent in advance again when actual contact pairs.
Fig. 2 illustrates a kind of modification of the jockey between the circuit carrier in flat circuit and control appliance, is wherein from the different of Fig. 1, and flat circuit 12 is connected electrically in housing with control appliance 10.
Control appliance 10 especially comprises housing 28, and this housing 28 has the circuit carrier 30 arranged within it.Circuit carrier 30 exists multiple electronics of not indicating in detail and/or electromechanical component, such as microcontroller, memory, discrete transistor, diode, resistance, capacitor, coil, relay, and plug jockey etc., they represent a circuit.This shell body 28 has the breakthrough part (Durchf ü hrung) for flat circuit 12.For improving sealing function and tight being tightly connected providing circuit carrier 30 further, housing 28 is additionally full of with the electric insulation filler 34 (so-called " casting material ") be made up of plastic material here.Circuit carrier 30 such as can be formed with traditional epoxy resin board having multiple layer of copper printed conductor and/or have a LTCC mixing module.For providing the electrical contact between flat circuit 12 and control appliance 10, conducting sphere 22 and interface ball 24 welding in fusion zone 26.According to the execution mode of the measure of Fig. 2 relative to the modification of Fig. 1 have circuit carrier 30 completely, the advantage of the encapsulation of tight seal, make circuit carrier 30, comprise completely protected from deleterious environmental effects above-mentioned with the electrical connection of flat circuit 12.
Fig. 3 illustrates the detailed profile of the jockey according to Fig. 2.
Interface ball 24 is integrated in circuit carrier 30, and to conduct electricity with the electronic unit be positioned on circuit carrier 30 by connection line 36 and be connected.Connection line 36 can with the metal material of such as copper alloy and/or with also forming for the conductive plastics of conducting sphere 22 or interface ball 24.Alternatively, interface ball 24 also with connection line 36 integratedly by conductive plastics die casting, or to be produced by printing printed conductor 36 and the combination of filling the cavity being used for interface ball 24.
For providing flat circuit 12 to be connected with the conduction between circuit carrier 30 or the electronics installed on circuit carrier 30 and/or electromechanical component, heater ball 22 and interface ball 24 until conductive plastics fusion temperature scope in.Then conducting sphere 22 is pressed facing to interface ball 24 on the direction of white arrow, thus they in the region of welding area, fused with one another or thermal bonding is together.There is provided between conducting sphere 22 and interface ball 24 thus simultaneously mechanical aspects enough can bearer connection.Then this device is put in housing 28, and seal this housing with filler.
Another modification of arrangements of electric connection of the present invention is shown at Fig. 4 and Fig. 5 going on to say reference simultaneously in process, wherein sets up between control appliance with the base plate supporting it and be electrically connected.
Control appliance 10 is fixed, is such as bonded on base plate 38, such as loads the circuit guide groove 40,42 of the raceway groove form of two conductions in base plate 38, these circuit guide grooves also forming for the conductive plastics of conducting sphere and interface ball equally by conduction.The nonconducting insulating material of base plate 38 is formed.Circuit guide groove 40,42 such as can be produced by the groove milled out in base plate 38, in described groove, then spray into conductive plastics.Control appliance 10 has two interface balls 44,46, and they are formed with conductive plastics.Electrical contact between control appliance 10 and base plate 38 is undertaken by the thermal welding of simple, interface ball 44,46 and circuit guide groove 40,42.This or can carry out during being fixed on by control appliance 10 on base plate 26 afterwards.Below interface ball 44,46, have one to be shown in broken lines in base plate 38 alternatively respectively groove 48, this groove be used for concentrating conveying to be used for heat energy that welding interface ball 44,46 and circuit guide groove 40,42 need or heat.Groove 48 below interface ball and all unshowned grooves in addition are preferably made up of tapered bores.But circuit guide groove 40,42 again can-here not shown-to conduct electricity with flexible flat circuit and be connected.
Fig. 6 the arrangements of electric connection be connected with the control appliance with interchangeable hull shape is shown another implement modification.Here control appliance 50 comprises alms bowl shape, downward housing 52 that open wide, that have the circuit carrier 54 be integrated in wherein substantially, and this circuit carrier 54 has multiple not specified electronic unit, and these electronic units represent a circuit.Control appliance 50 is fixed on base plate 56, has at least one to extend with the electric line guide groove 58 that conductive plastics is formed in base plate 56.Electrical connection between control appliance 50 and circuit guide groove 58 is carried out with the thermal welding of circuit guide groove 58 by simple, interface ball 60 again, wherein produces fusion zone 62.By the groove 64 be arranged on below base plate 56, fusion zone 62 can be aimed at and carry out handling molten heat.
Housing 52 differently has the cross-sectional geometry of approximate trapezoid shape with the hull shape illustrated so far, this geometry have around not specified flange, this flange is fixedly connected with base plate 56 or electric line guide groove 58, such as bonding.Alternatively, flexible seal can be set between this flange and base plate 56 or electric line guide groove 58, so its middle shell 52 is connected by suitable mechanical device, such as screw or clamping connection clamps with base plate 56.For realizing the tight hermetically enclosed of control appliance 50, housing 52 is additionally filled with the insulation filling material 66 be made up of plastic material, or circuit carrier 54 is fully encapsulated with this insulation filling material 66.Housing 52 can with suitable metal material and/or with forming by fibre-reinforced plastic material.
In the declarative procedure continued, Fig. 7 to Fig. 9 of reference simultaneously illustrates another enforcement modification of arrangements of electric connection, wherein different from Fig. 1, arranges the additional insulation of interface ball and conducting sphere.
The conducting sphere 22 of flat circuit 12 is oriented relative to the interface ball 24 of control appliance 10 in the horizontal direction, makes to produce in ideal conditions to cover completely, to realize thermal weld that is comprehensive, that produce electric transition resistance little as far as possible as far as possible.In welding process, plastic conducting sphere 22 presses facing to equally enough softening interface ball 24 on the direction of white arrow, in the region of welding area 26, wherein cause small, the mutual local mixing of conductive plastics.In addition, connection line 36 extends in control appliance 10, and this connection line 36 is for electrical connection unshowned electronic unit or circuit carrier here.Different from the enforcement modification of the measure according to Fig. 1 to Fig. 3, conducting sphere 22 or interface ball 24 all completely with high electric insulation and therefore actual nonconducting insulating barrier 68,70 surround, this insulating barrier can with thermoplastic and/or form with heat cured plastics.
As seen from Figure 8, insulating barrier 68,70 improve interface ball and conducting sphere 22,24-they after fusion process, embody the electric insulation of the electrical pickoff 74 and 76 formed relative to the adjacent same interface ball by thermal welding or welding and conducting sphere between actual electrical pickoff 72-.This is particularly advantageous when multipole (hochpolig) flat circuit with little line-spacing (Rasterma β) should be made to be electrically connected with control appliance 10.In addition, insulating barrier 68,70 improves the mechanical load-bearing capability of contact point 72 to 76, and prevents dust granule and/or chemical corrosivity liquid from invading in the borderline region of electrical pickoff 72 to 76 simultaneously.
In fig .9, conducting sphere 22 and interface ball 24 weld in the region of welding area 26 and electricity is provided between flat circuit 12 and control appliance 10 with the connection of machinery.Conducting sphere 22 and interface ball 24 welding, and upper insulating barrier 68 and the welding of lower insulating barrier 70.
In the declarative procedure continued Figure 10 to Figure 12 of simultaneously reference the arrangements of electric connection be connected with control appliance is shown another implement modification, this control appliance is equipped with multiple metal joint.
Control appliance 90 has multiple straight metal joint, one of them metal joint represent all remaining there is Reference numeral 92.Metal joint 92 conducts electricity with the electronics in control appliance 90 and/or electromechanical component and is connected.The printed conductor that multiple compartment of terrain of uniform parallel each other extends is embedded with in flat circuit 12.The printed conductor 14 of foremost conducts electricity with metal joint 92 and is connected.Correspondingly, remaining metal joint is also connected with the printed conductor of flat circuit 12.The metal joint of control appliance 90 or flat contact pin have the cross-sectional geometry of approximate rectangular shape in the present embodiment.
Figure 11 shown in the phantom of a signal shape according to Figure 10, the jockey that is in non-contact condition.Copper wire 14 covers with plastic film 16 and lower plastic film 18 in both sides.The conducting sphere 22 that the conductive plastics of existence conduction is formed in join domain 20.Below metal joint 92, have interface ball 94, this interface ball is formed with conductive plastics equally.Usually preliminary treatment that the is machinery needing metal joint 92 to stand to be suitable for, chemical and/or physics, such as plasma irradiating process, so that the attachment improving conductive plastics.Alternatively, metal joint 92 can also hacking and/or the experience chemical cleaning of carrying out with suitable solvent mechanically.
For improving the attachment of interface ball 94 on metal joint 92 further, can introduce boring 96 in metal joint 92, this boring 96 is preferably permeated by conductive plastics completely.Alternatively, as by a dotted line, conductive plastics can be applied in the both sides of metal joint 92, make result form the interface ball 98 with near-elliptical cross geometry.After heater ball 22 fully and interface ball 94 or 98, they relative to each other press by the direction of white arrow, to produce welding and to produce the electrical contact between printed conductor 14 and metal joint 92 thus.
In fig. 12, conducting sphere 22 and interface ball 94 thermal welding, flat circuit 12 conducts electricity with control appliance 90 and is connected thus.For this between tight seal control appliance 90 with flat circuit 12 is electrically connected, provide the bead section 102,104 with the side that two offset one from another in the vertical direction around lid 100.Lid 100 can be formed with metal material and/or by thermoplasticity or thermoset plastic material.Bead section 102,104 was both also connected with the upside of control appliance 90 with the upside of flat circuit 12 by adhesive linkage 106.Alternatively, also can for locating cover 100 and provide screw connect and/or clamping connect.Between right bead section 104 and metal joint 92, there is elastic sealing device 108, sealing device 108 such as shape is O shape ring or the ring sealing device with other shape of cross sections different from circle.Lower side seals is undertaken by flat carrier board 110, this carrier board 110 by adhesive linkage 106 both with flat circuit 12 also with the lower side bonds of control appliance 90.Carrier board 110 can be formed with metal material, so that except pure sealing function or for cooling the heat sink of the electronics that comprises in control appliance 90 and/or electromechanical assemblies.In addition can produce between lid 100 and metal joint 92 and between metal joint 92 and carrier board 110 in case of need, introduce in not specified cavity be used for close electric insulation filler.The size of sealing device 108, particularly its height are so selected, under the state making sealing device be in slight mechanical bias after mounting cover 100 and therefore metal joint 92 is defeated by flat circuit 12 with defined, and wherein carrier board 110 is used as bearing.Due to this structure, the electrical contact reliability of the connection between flat circuit 12 and control appliance 90 and simultaneously mechanical load-bearing capability are optimized all further.In addition, the sealing relative to deleterious environmental effects is ensured.
Figure 13 illustrates and has metal joint and another of the jockey be connected without the control appliance of interface ball implements modification.
Different from the execution mode illustrated so far, control appliance 120 has reclinate, to have near circular cross section geometry metal joint 122 or circle contact pin, it does not provide any interface ball (" without interface ball ").For setting up the electrical connection between the circuit guide groove 124 in metal joint 122 and base plate 126, by transfer heat, the circuit guide groove 124 formed with thermoplastic conductive plastics is fully plastified, and metal joint 122 to be pressed in this circuit guide groove, fusing and form electrical contact thus and this metal joint is fixed in its position.Circuit guide groove 124 in the base plate 126 formed with insulating material such as by milling out groove and/or other recess carries out, then can introduce so many conductive plastics wherein, makes preferably and the not specified upside of base plate 126 is evenly closed.For optimizing relative to the electric insulation effect of the adjacent metal joint of control appliance 120 and resisting adverse environment impact further, be equipped with the insulating case 126 of hollow cylinder can to metal joint 122, the suitable insulating layer and thermoplastic plastic material of this insulating case is formed.In order to the electrical contact completely of control appliance 120, usual integrated multiple electric line guide groove 124 in base plate 124.For improving resisting hazardous medium further, whole device can also use filler (" casting material ") to cover.
Figure 14 illustrates another enforcement modification of jockey.Different from the enforcement modification according to Figure 13, directly extend on the not specified upside of base plate 126 with the circuit guide groove 130 with the cross section of approximate rectangular shape that conductive plastics is formed, and control appliance 120 has straight metal joint 132 or justifies contact pin or flat contact pin.Circuit guide groove 130 such as can manufacture by being sprayed on base plate 126 by conductive plastics by extruding jet nozzle.In addition, here be embodied as in the base plate 126 of electric insulation and introduce groove 134, the not specified degree of depth of this groove corresponds to the not specified structure height of control appliance 120 substantially, and have at least one to be roughly OBL conductive transition 136 at edge side wherein, this conductive transition is made up of conductive plastics equally.This conductive transition 136 or the multiple conductive transition usually needed such as can by forming by the extruding jet nozzle spray conductive plastics of relative configurations or by bonding prefabricated conductive transition under plastifying state.At this, the number of the OBL conductive transition 136 that provide is corresponding to the number of the electric transition contact between circuit guide groove 130 and the metal joint 132 of control appliance 120 that will realize.Here conductive transition 136 extends perpendicular to picture respectively in parallel with each other at interval.
Substantially be the cross-sectional geometry that OBL conductive transition 136 has rectangular shape, its height is substantially corresponding to the structure height of control appliance 120.In order to set up the electrical connection between circuit guide groove 130 and metal joint 132, the edge side shell section of this metal joint 132 and control appliance 120 is pressed in the conductive transition 136 softening by enough heat delivery, wherein simultaneously conductive transition 136 in fusion zone 138 with circuit guide groove 130 thermal welding.For ensureing metal joint 132 and the enough each other electric insulation of conductive transition 136, must by conductive transition 136 generally respectively by arrange betwixt, in fig. 14 unshowned, be preferably that electricity is separately each other in OBL insulation transition equally.The conductive transition with setting alternating with each other is similar to the structure of the conductive rubber for contacting LCD display with the said structure of the sequence of insulation transition.In case of need can be bonding with base plate 126 by control appliance 120, to optimize mechanical load-bearing capability especially.Above-mentioned execution mode ensure simultaneously electrical connection between circuit guide groove 130, control appliance 120 and base plate 126 tight sealing, close completely, this base plate 126 makes to be electrically connected or contact has nothing to do with harmful environmental impact substantially.Base plate 126 can the outside metal material in region in downside at circuit guide groove 130 and conductive transition 136 cover, can improve heat radiation.
Figure 15 illustrates another enforcement modification of arrangements of electric connection.
From according to Figure 13,14 the enforcement modification of measure different, control appliance 140 has at least one and is set directly at interface ball 142 in the housing do not shown or on object, and this interface ball 142 conducts electricity with the electronics comprised in control appliance 140 and/or mechanical part and is connected.In join domain 20, remove upper plastic film and lower plastic film 16,18 from flat circuit 12, that is, flat circuit 12 goes insulation in this region completely, and (copper) printed conductor 14 conducted electricity is exposed.Printed conductor 14 is surrounded by the conducting sphere 144 be made up of conductive plastics all sidedly, moulding that is that this conducting sphere has an approximate alms bowl shape or hat and being connected, to prevent exterior object and/or liquid from invading in this region with the plastic film 16,18 retained.These conducting spheres 144 such as can manufacture by being immersed in corresponding mould by printed conductor 14 in a straightforward manner, and wherein this mould uses conductive plastics that is enough softening or plasticizing to be full of at least in part.Therefore between conducting sphere 144 and printed conductor 14, electrical contact is produced.
In order to set up the electrical connection between flat circuit 12 and control appliance 140, by heat delivery, interface ball 142 and conducting sphere 144 are enough plastified, and to extrude toward each other with small pressure in the region of fusion zone 146 and fused with one another.The electrical connection of setting up between flat circuit 12 and control appliance 140 in this way is tightly encapsulated from the beginning, and is therefore protected from harmful environmental impact completely.
This enforcement modification can realize that maximum space is saved, in addition can the simple and process of manufacturing technology reliably operate and when needed can also electrical connection between the control appliance 140 implemented of multipole and flat circuit 12.
Claims (17)
1. an arrangements of electric connection, this arrangements of electric connection is positioned at control appliance (10, 50, 90, 140) with flexible circuit carrier or there is multiple circuit guide groove (40, 42, 58) base plate (38, 56, 126) between printed conductor (14), it is characterized in that, described control appliance (10, 50, 90, 140) there is multiple interface ball (24, 44, 46, 60, 94, 98, 142), these interface balls thermoplastic conductive plastics are formed, wherein said interface ball (24, 44, 46, 60, 94, 98, 142) in order to realize electrical connection respectively can with the conducting sphere (22 of printed conductor (14), 144) and/or respectively can with base plate (38, 56) circuit guide groove (40, 42, 58) thermal welding, wherein conducting sphere (22, 144) and circuit guide groove (40, 42, 58) form with conductive plastics.
2. arrangements of electric connection according to claim 1, wherein conductive plastics is the thermoplastic material of the particle being mixed with enough conductions.
3. arrangements of electric connection according to claim 2, wherein conductive plastics is the thermoplastic material of the nano particle being mixed with metallic particles and/or conduction.
4. according to the arrangements of electric connection one of claims 1 to 3 Suo Shu, wherein control appliance (10,50,90,140) has the housing (28,52) for holding at least one circuit carrier (30,54), and circuit carrier (30,54) has multiple electronics for forming circuit and/or electromechanical assemblies.
5. arrangements of electric connection according to claim 4, wherein interface ball (24,44,46,60,94,98,142) is arranged on that housing (28,52) is upper and/or circuit carrier (30,54) upper and/or metal joint (92) upper and conducts electricity with the assembly of at least one circuit carrier (30,54) respectively and is connected.
6. arrangements of electric connection according to claim 4, wherein metal joint (92) is connected with the electrical component of circuit carrier (30,54).
7. according to the arrangements of electric connection one of claims 1 to 3 Suo Shu, wherein at least one circuit guide groove (40,42,58) raceway groove be incorporated in base plate (38,56) is formed, this raceway groove is filled with conductive plastics at least partly, and base plate (38,56) is formed with the material of electric insulation.
8., according to the arrangements of electric connection one of claims 1 to 3 Suo Shu, wherein at least one circuit guide groove (40,42,58) conductive plastics be applied on base plate is formed, and base plate (38,56) is formed with the material of electric insulation.
9., according to the arrangements of electric connection one of claims 1 to 3 Suo Shu, wherein said control appliance (10,50,90,140) is motor and/or gearing control device.
10., according to the arrangements of electric connection one of claims 1 to 3 Suo Shu, wherein said flexible circuit carrier is multipole flat circuit (12).
11. 1 kinds of arrangements of electric connections, this arrangements of electric connection is positioned at control appliance (120) and has between the base plate (126) of multiple circuit guide groove (124,130), it is characterized in that, control appliance (120) has multiple metal joint (122,132), these metal joints are that realization electrical connection respectively can at the circuit guide groove of base plate (126) (124,130) and/or the middle heat fusing of conductive transition (136), wherein circuit guide groove (124,130) is formed with conductive plastics, and have interface ball below described metal joint, described interface ball conductive plastics is formed.
12. arrangements of electric connections according to claim 11, wherein conductive plastics is the thermoplastic material of the particle being mixed with enough conductions.
13. arrangements of electric connections according to claim 12, wherein conductive plastics is the thermoplastic material of the nano particle being mixed with metallic particles and/or conduction.
14. according to claim 11 to the arrangements of electric connection one of 13 described, and wherein said at least one metal joint (122) has insulating case (128) at least partly.
15. according to claim 11 to the arrangements of electric connection one of 13 described, wherein at least one circuit guide groove (124) raceway groove be incorporated in base plate (126) is formed, this raceway groove is filled with conductive plastics at least partly, and base plate (126) material of electric insulation is formed.
16. according to claim 11 to the arrangements of electric connection one of 13 described, and wherein at least one circuit guide groove (130) and/or conductive transition (136) conductive plastics are formed, and base plate (38,56) is formed with the material of electric insulation.
17. according to claim 11 to the arrangements of electric connection one of 13 described, and wherein said control appliance (120) is motor and/or gearing control device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010030063 DE102010030063A1 (en) | 2010-06-15 | 2010-06-15 | Assembly for electrical connection between e.g. motor and/or transmission control unit of motor car and conductors of three-pin flat cable carrier, has pad head and conductor, which are formed with thermoplastic material |
| DE102010030063.2 | 2010-06-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386490A CN102386490A (en) | 2012-03-21 |
| CN102386490B true CN102386490B (en) | 2016-01-20 |
Family
ID=44898734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110233364.0A Expired - Fee Related CN102386490B (en) | 2010-06-15 | 2011-06-14 | Arrangements of electric connection |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP6143413B2 (en) |
| CN (1) | CN102386490B (en) |
| DE (1) | DE102010030063A1 (en) |
| IT (1) | ITMI20111040A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6328644B2 (en) * | 2013-09-10 | 2018-05-23 | 堺ディスプレイプロダクト株式会社 | Conductor connection structure and display device |
| DE102014221973A1 (en) | 2014-10-28 | 2016-04-28 | Robert Bosch Gmbh | Electrical apparatus for use in a contaminating medium and method of making the same |
| DE102015208413A1 (en) * | 2015-05-06 | 2016-11-10 | Robert Bosch Gmbh | Electrical connection arrangement |
| DE102016209421A1 (en) * | 2016-05-31 | 2017-11-30 | Robert Bosch Gmbh | Control unit, in particular for a motor vehicle and method for electrically connecting a stamped grid made of substantially copper or aluminum with electrical components on a mounting surface of a printed circuit board element |
| DE102016216660A1 (en) | 2016-09-02 | 2018-03-08 | Volkswagen Aktiengesellschaft | Battery unit and wiring unit for a battery unit |
| DE102016219374B4 (en) * | 2016-10-06 | 2018-06-14 | Siemens Aktiengesellschaft | Long-term stable and cohesive current path connection for low-voltage, medium-voltage and / or high-voltage systems or switching devices by means of nanomaterials |
| CN108281804A (en) * | 2018-04-26 | 2018-07-13 | 贵州电网有限责任公司 | A kind of new type nut gasket for power equipment |
| CN109301513B (en) * | 2018-10-24 | 2020-10-30 | 云南电网有限责任公司电力科学研究院 | Contact reaction type cable connecting device and connecting method |
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Also Published As
| Publication number | Publication date |
|---|---|
| ITMI20111040A1 (en) | 2011-12-16 |
| CN102386490A (en) | 2012-03-21 |
| JP2016171079A (en) | 2016-09-23 |
| JP2012004120A (en) | 2012-01-05 |
| JP6121019B2 (en) | 2017-04-26 |
| JP6143413B2 (en) | 2017-06-07 |
| DE102010030063A1 (en) | 2011-12-15 |
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