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
  • H05K3/22—Secondary treatment of printed circuits
  • H05K3/28—Applying non-metallic protective coatings
  • H05K3/281—Applying non-metallic protective coatings by means of a preformed insulating foil
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
  • G01D11/24—Housings ; Casings for instruments
  • G01D11/245—Housings for sensors
• • 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
  • H05K2201/01—Dielectrics
  • H05K2201/0104—Properties and characteristics in general
  • H05K2201/0125—Shrinkable, e.g. heat-shrinkable polymer
• • 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
  • H05K2201/01—Dielectrics
  • H05K2201/0183—Dielectric layers
  • H05K2201/0195—Dielectric or adhesive layers comprising a plurality of layers, e.g. in a multilayer structure
• • 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
  • H05K2201/10007—Types of components
  • H05K2201/10189—Non-printed connector
• • 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
  • H05K2201/10295—Metallic connector elements partly mounted in a hole of 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
  • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
  • H05K2203/08—Treatments involving gases
  • H05K2203/085—Using vacuum or low pressure

Definitions

• the invention is based on an electronic card and a method for producing such an electronic card, as well as an electrical machine with such an electronic card according to the invention, according to the preamble of the independent claims.
• an electronic card which contains a control circuit, is arranged on the housing part of the electrical machine.
• the electronic board is arranged as possible at an open end of the housing part of the electrical machine.
• the housing part is preferably a pole pot or a stator housing.
• the electronic board can be easily connected to the components to be controlled, which are arranged in the housing part.
• Dissipation heat of the components on the electronic board on the protective film Dissipation heat of the components on the electronic board on the protective film.
• the electronic card is wrapped with the protective film.
• the protective film After the protective film is placed in its final position on the electronic board, the board of the electronic card, the electrical components of the board, the plug of the electronic card, as well as the plug-in contact between the plug and board are covered with the protective film.
• the final position is characterized by the fact that the protective film covers almost the entire electronic card. If the protective film is completely mounted in the end position, the electronic card is ready for use. In this case, preferably one of the board-facing end piece of the plug is coated with the protective film.
• the protective foil overlaps with the plug.
• the protective film lies in its final position close to the electronic board and its components.
• the protective film lies so close to the protective film that touches the electronic card and the components located thereon directly. The touch distinguishes the components on the outside of the protective film.
• the protective film is formed like a tube. This makes it easy to put the protective foil on the card.
• the protective film envelops the card in a closed manner with respect to the circumference of the tubular protective film.
• Another embodiment shows a
• a shrink tube has the advantage that it rests close to the electronic card, if its
• the shrinking process is characterized by a contraction of the hose.
• the shrinking process is accomplished by e.g. Heat supply causes.
• heat can be supplied in one process step, e.g. through a hot air blower, an oven or infrared light.
• the shrink tube could also be shrunk by supplying cold.
• the shrink tube could be exposed to liquid nitrogen or cold air. In this way, a close concern of the protective film on the electronic card - in particular on the components - guaranteed.
• the protective film is formed like a bag.
• the protective film can be pushed with its open end ahead on the electronic board, so that the open end is arranged in the end position on the plug.
• a protective film has a closed end. This prevents the penetration of small parts at an open end.
• a tubular protective film is pushed onto the electronic card, to subsequently weld the plug remote from the end of the protective film and thus to close. In addition to welding, bonding is also possible. This ensures optimal protection against conductive small parts, as they can no longer get through the plug facing away from the open end under the protective film.
• the protective film is vacuum-sealed in its final position on the electronic card.
• Vacuuming is the creation of a negative pressure within a room. Applied to the protective film, this means that the interior of the arranged in their Endpositon protective film, a part of the contained gas, such as air is withdrawn. As a result, the said negative pressure is formed. Ideally, the gas is approximately completely removed.
• the negative pressure leads to a particularly close-fitting protective film on the components of the electronic board.
• the air that is removed from the inside of the protective film by the vacuuming process is withdrawn through the open end. It is also possible alterant an embodiment in which the air is withdrawn through a designated opening in the protective film.
• the open end of the protective film is welded to the plug after the vacuuming step.
• the protective film preferably overlaps the end piece of the plug.
• the end piece of the plug faces the circuit board. Further, the end piece of the plug touches the board, or engages with the end of the plug, the edge of the board.
• the welding of the protective film with the end of the plug or with the plug leads to an optimal sealing of the protective film against its surroundings. By vacuuming the insulating air is removed from the inside of the protective film and in the
• Protective film components can thus optimally transfer their heat through the protective film to the environment.
• a tubular protective film can be pushed onto the card and sealed at both ends by means of ultrasonic welding or laser welding.
• Materials are plastics that can be found in heat or cold
• the protective film is formed of a thermally conductive material.
• plastics that are heat-conducting, an advantage. This creates efficient heat dissipation.
• the protective film may alternatively consist of a composite material, which preferably contains metal.
• a composite material is characterized by a multi-layered structure which is achieved by stacked films.
• different properties of materials can be used to provide an optimal combination of heat dissipation and mechanical robustness to show the protective film.
• a composite material is conceivable which consists of laminated films, each film having at least one function, such as heat conduction via a thermal bridge to a heat sink,
• the film and / or the composite material are short-circuit proof, and keep residual dirt and conductive material from the environment e.g. also from the engine away from the board.
• the protective film is advantageously provided with a metallic mass block, e.g. connected to a heat sink or cooling fins. This ensures good heat dissipation away from the electronics card.
• the electric machine according to the invention with an electronic card having the features of the independent claim has the advantage of ensuring a long-lasting and safe operation.
• Such an electric machine according to the invention for use as an adjustment drive in an automobile e.g. used as a window, sunroof drive, boot lid drive and / or gearbox drive.
• an adjustment drive in an automobile e.g. used as a window, sunroof drive, boot lid drive and / or gearbox drive.
• use in other technical fields is possible.
• FIG. 1 shows an electronic card according to the invention with a protective film
• FIG. 2 shows an electrical machine according to the invention with an electronic card enveloped by the protective film
• FIG. 1 shows an electronic card 10 for controlling an electrical machine 12, as shown in FIG.
• the electronic board 10 comprises various elements 30, such as a circuit board 14, a plug 18 and electrical components 16 and plug contacting 20. On the board 14 are electrical
• the electrical components 16 contact the circuit board 14 and form a control circuit.
• the electrical components 16 are mounted on a front side 15 and on a rear side 17 of the board 14.
• the front and back sides 15, 17 form the sides of the board 14 with the largest area.
• the electrical components 16 are soldered to the circuit board 14.
• the electrical components 16 may also be clipped or plugged onto the circuit board 14.
• the electronic card 10 comprises the plug 18, which is fastened to the circuit board 14 and contacted electrically by the plug contact 20.
• the male contact 20 is made here by means of soldering. It is also here a male contact 20 between the plug and board by clips or
• the elements 30 of the electronic card 10 are tightly enclosed by a protective film 22.
• the protective film 22 may be formed like a tube in a preferred embodiment.
• a shrink tube 25 is used, which on the
• Electronic card 10 is shrunk and thereby applies close to the contour of the electronic board 10.
• the ends of the shrink tube 25 remain open.
• the electronic card 10 is arranged in a bag-like protective film 22.
• the bag-like protective film 22 is closed at a first, the plug 18 facing away from the end 24.
• the open end 26 is thereby slipped over the end piece 21 of the plug 18, so that the end piece 21 and the protective film 22 form an overlap region 23.
• the protective film 22 is vacuum-sealed in its final position on the electronic board 10. Its open end 26 is welded to the plug 18.
• the weld 19 is attached to the overlap region 23 between the open end 26 of the protective film 22 and the end piece 21 of the plug 18.
• the weld seam 19 extends in the circumferential direction around the entire protective film 22, so that both the front and rear side and the sides of the protective film 22 and the overlapping region 23 are welded to the plug 18.
• the weld seam 19, which runs closed in the circumferential direction around the complete overlap region 23, is airtight.
• the plug 18 has a socket 27 with pins 17 located in the socket 27.
• the metal pins 17 pass through the end piece 21 of the plug 18 and contact the circuit board 14 on the front and / or rear side 15, 17. Thus, the pins 17 form the plug contact 20 with the board 14.
• the vacuumed protective film 22 is preferably made of a plastic that is easy to weld.
• the plastic is thermally conductive.
• the plastic is flexible so that it can be very close to the components 16, the board 14, the male contact 20 and the plug 18 can nestle. It should be in the
• a flexible material is also selected. After attaching the protective film 22, the contour of the elements 30 under the protective film 22 is visible.
• the protective film 22 is connected via a thermal bridge 80 with a heat sink 29, so that the heat from the electronic board 10 via a
• Thermal bridge 80 is discharged.
• the thermal bridge 80 can be achieved by direct contact between the protective film 22 and the heat sink 29. Further, the thermal bridge 80 may be replaced by one or more
• the heat sink 29 may be a heat sink 8 and / or a metallic mass block and / or a water cooling.
• the heat sink 8 is formed as part of the motor housing. It is also conceivable a heat sink 291, to which a thermal bridge 801 is generated by the
• FIG. 2 shows an electrical machine 12 according to the invention.
• the electric machine 12 has a housing part 4.
• the housing part 4 is a Pole pot.
• a stator 2 is arranged concentrically with the housing part 4.
• a rotor 3 is arranged on a rotor shaft 1.
• the electronic card 10 with the protective film 22 -as it is shown according to the invention in Figure 1 is arranged.
• the electronic board 10 is arranged at an open end 6 of the housing part 4.
• the electronic board 10 is located in a cavity 5 of the electric machine 12.
• the cavity 5 is located axially adjacent to the open end 6 of the housing part 4.
• An alternative embodiment is possible in which the cavity 5 is not closed by a cover 7, because the electronic board 10 has a protective film 22.
• Next is no
• the electronic board 10 with the protective film 22 can be mounted on the outside 9 of the motor housing 4. Furthermore, such a hermetically sealed protective film 22 results in that leak tests and other measures for sealing the electrical machine 12 can be dispensed with.
• Protective film 22 is disposed on the electronic board 10. Subsequently, the protective film 22 is mounted on the electronic board 10.
• the plug 18 facing the open end 26 of the protective film 22 can be welded to the plug 18. Furthermore, the end 24, which faces away from the plug 18, can subsequently be tightly welded, so that the protective film 22 is sealed. Further, it is possible that the plug 18 facing away from the end 24 of the protective film 22 before placing on the
• the protective film 22 may before mounting according to the length of the
• Electronics card 10 are assembled, so that a cut-to-length protective film 22 each on an electronic board 10 is arranged.
• an endlessly long tube forming the protective film 22 is placed on the electronic board 10 to be separated from the rest of the tube after arranging according to the length of the electronic card 10.
• This endless hose can be unwound, for example, from a roll.
• the separation of the piece of tubing, which is arranged on the electronic card 10 can be done by means of a conventional knife or a pair of scissors.
• It can also be used a laser beam, wherein the laser beam leads instantaneously for welding the end piece 24 of the hose.
• a hot separator is possible, which also leads instantaneously for welding the end facing away from the plug 24 of the hose piece. Thus, the end 24 is closed.

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Casings For Electric Apparatus (AREA)
• Non-Metallic Protective Coatings For Printed Circuits (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=52000837

Family Applications (1)

Country Status (4)

Citations (1)

Family Cites Families (7)

• 2014
  • 2014-01-30 DE DE102014201626.6A patent/DE102014201626A1/de not_active Ceased
  • 2014-11-27 EP EP14805566.8A patent/EP3100598A1/de not_active Withdrawn
  • 2014-11-27 WO PCT/EP2014/075781 patent/WO2015113674A1/de active Application Filing
  • 2014-11-27 CN CN201480074591.5A patent/CN106416438A/zh active Pending

Patent Citations (1)

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