WO2021125658A1 - Housing for receiving a printed circuit board - Google Patents

Housing for receiving a printed circuit board Download PDF

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Publication number
WO2021125658A1
WO2021125658A1 PCT/KR2020/017818 KR2020017818W WO2021125658A1 WO 2021125658 A1 WO2021125658 A1 WO 2021125658A1 KR 2020017818 W KR2020017818 W KR 2020017818W WO 2021125658 A1 WO2021125658 A1 WO 2021125658A1
Authority
WO
WIPO (PCT)
Prior art keywords
printed circuit
circuit board
housing
counterholder
support element
Prior art date
Application number
PCT/KR2020/017818
Other languages
English (en)
French (fr)
Inventor
Andrea Gentile
Eric Rooks
Oliver Gormanns
Original Assignee
Hanon Systems
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hanon Systems filed Critical Hanon Systems
Publication of WO2021125658A1 publication Critical patent/WO2021125658A1/en

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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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • H05K7/142—Spacers not being card guides
    • 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
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
    • H05K7/1427—Housings
    • H05K7/1432—Housings specially adapted for power drive units or power converters
    • H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing

Definitions

  • the invention relates to a housing for receiving at least one printed circuit board.
  • the housing can be used in particular in the motor vehicle sector in a passenger car or commercial vehicle with an electric compressor.
  • housings For protection against external influences such as dirt, vibrations or electrical potentials printed circuit boards of electronic components, such as an insulated-gate bipolar transistor (IGBT) are installed in housings.
  • IGBT insulated-gate bipolar transistor
  • housings are usually formed with two complementary housing parts, for example, a lower part and a cover, which can be mounted together forming a cavity in which a printed circuit board can be received.
  • Receiving and attaching of printed circuit boards in a housing cavity can be realized by attachment means such as latching elements, rivets or screws.
  • a solution is known from DE 10 348 979 A1 in which latching elements are attached to a housing, which engage behind a printed circuit board to be attached in the housing in order to achieve a fixation in the housing cavity.
  • a housing with a printed circuit board is known, wherein the printed circuit board is attached to the housing with screws.
  • the known solutions for attaching printed circuit boards prove to be disadvantageous, particularly when assembling large numbers of pieces, such as in the automotive sector, since attachment by means of screws requires an increased expenditure of time.
  • the use of screws as attachment means also has the disadvantage of a reduced cooling surface of a printed circuit board in the contact area of the screw, in particular in the area of the screw head.
  • Latching elements as attachment means prove to be disadvantageous due to their complex production.
  • the housing for receiving a printed circuit board proposed for achieving the object comprises two complementary housing parts which can be mounted together forming a cavity. Furthermore, the housing comprises a printed circuit board support formed on the inside of the housing with at least one printed circuit board support element formed to project into the cavity, and at least one printed circuit board counterholder formed to project into the cavity on the inside of the housing.
  • the at least one printed circuit board support element and the at least one printed circuit board counterholder cooperate in the assembled state of the housing parts in such a way that a printed circuit board arranged in the cavity is held fixed between the at least one printed circuit board support element and the at least one printed circuit board counterholder, with no need for further attachment elements for receiving and attaching the printed circuit board.
  • Complementary housing parts are to be understood in the context of the invention as housing parts which are designed in such a way and which can be mounted together forming a cavity.
  • the two complementary housing parts can be referred to as the first housing part and the second housing part, wherein the first housing part can be designed as a housing lower part and the second housing part as a housing cover.
  • the outer edges of the housing cover and of the housing lower part can be designed in such a way that they engage in a form-locking manner.
  • the first housing part and the second housing part form a cavity for receiving at least one printed circuit board.
  • conventional fasteners such as screws, clips or latching elements may be provided.
  • a sealing element in the form of a rubber or a plastic can be provided between the housing parts in order to seal the cavity against the environment in a fluid-tight manner.
  • the printed circuit board support with the at least one printed circuit board support element formed to project into the cavity is formed on the first housing part, with the printed circuit board counterholder being formed on the second housing part.
  • the printed circuit board support formed on the inside of the housing with the at least one printed circuit board support element formed to project into the cavity and the at least one printed circuit board counterholder are formed in such a way that the contact surface between a printed circuit board arranged in the cavity and the inner surface of the housing parts is small.
  • the printed circuit board support formed on the inside of the housing with the at least one printed circuit board support element formed to project into the cavity and the at least one printed circuit board counterholder are formed in such a way that a printed circuit board arranged in the cavity has no contact surface with the inner surface of the housing parts.
  • a contact surface preferably only exists between the printed circuit board received in the cavity and the at least one printed circuit board support element, as well as the printed circuit board received in the cavity and the printed circuit board counterholder.
  • the printed circuit board support formed on the inside of the housing with the at least one printed circuit board support element formed to project into the cavity and the at least one printed circuit board counterholder are thus formed in such a way that a cavity is formed in each case between a top of a printed circuit board and an inside of the second housing part as well as between a bottom of a printed circuit board and an inside of the first housing part. Due to the fact that the contact surface between the printed circuit board fixed in the cavity and the inner surface of the housing parts is small, and a cavity is formed on both sides of the printed circuit board, the space and in particular the printed circuit board surface for dissipating heat and the cooling surface, respectively, are large.
  • the printed circuit board support element and the at least one printed circuit board counterholder can be designed in such a way, that in the assembled state of the housing parts they exert a compressive force on the printed circuit board arranged in the cavity in order to fix the printed circuit board.
  • the exertion of a compressive force can be achieved in that a printed circuit board is clamped against the printed circuit board support element by means of the printed circuit board counterholder.
  • This can be achieved in that a distance between a printed circuit board contact surface of the printed circuit board support element and a printed circuit board contact surface of the printed circuit board counterholder is equal to or slightly smaller than the thickness of a printed circuit board held between the printed circuit board support surface of the printed circuit board support element and the printed circuit board support surface of the printed circuit board counterholder.
  • the distance between the end surfaces of the printed circuit support element and the printed circuit board counterholder can be equal to or slightly smaller than the thickness of a printed circuit board.
  • the at least one printed circuit board support element and/or the at least one printed circuit board counterholder have/has an elastic element in order to exert a compressive force on the printed circuit board arranged in the cavity.
  • the elastic element can be arranged on a contact side of the printed circuit board counterholder with the printed circuit board and/or on a contact side of the printed circuit board support element with the printed circuit board.
  • the elastic element can be a rubber or a plastic.
  • a spiral spring, a disk spring, a bevel washer, a spring sleeve or a leaf spring can be used as the elastic element.
  • the elastic element can be formed or received on an end face of the at least one printed circuit board support element and/or the at least one printed circuit board counterholder.
  • the printed circuit board counterholder and the printed circuit board support element can be formed as an elastic element.
  • the printed circuit board counterholder and/or the printed circuit board support element can be formed from an elastic material.
  • the printed circuit board counterholder and/or the printed circuit board support element can thus be formed as a spring element, for example as a spiral spring or leaf spring.
  • the printed circuit board support element can be formed to be rigid, the printed circuit board counterholder being formed in the form of a spiral spring or leaf spring which clamps the printed circuit board against the printed circuit board support element.
  • the at least one printed circuit board support element and the at least one printed circuit board counterholder can be designed to be arranged opposite one another.
  • the at least one printed circuit board support element and the at least one printed circuit board counterholder can be formed as cylindrical studs or hollow cylinders or domes.
  • the at least one printed circuit board support element and the at least one printed circuit board counterholder can be designed to be arranged coaxially opposite one another.
  • the at least one printed circuit board support element and the at least one printed circuit board counterholder can be designed to be arranged axially offset.
  • the at least one printed circuit board support element and/or the at least one printed circuit board counterholder can be arranged at least partially in an opening of a printed circuit board in the assembled state of the housing parts.
  • At least one first printed circuit board support element and at least one first printed circuit board counterholder can be formed for receiving and fixing a first printed circuit board, with at least one second printed circuit board supporting element and at least one second printed circuit board counterholder being formed for receiving and fixing a second printed circuit board parallel to the first printed circuit board.
  • a first printed circuit board is held fixed between the at least one printed circuit board support element and the at least one printed circuit board counterholder, wherein a second printed circuit board with a further printed circuit board support element and/or a further printed circuit board counterholder which is/are passed through an opening in the first printed circuit board, is held fixed in the cavity spaced from the first printed circuit board.
  • the second printed circuit board is held fixed against an inner wall of the housing parts with a further printed circuit board support element or a further printed circuit board counterholder.
  • the second printed circuit board By holding the second printed circuit board fixed against an inner wall of the housing parts with a further printed circuit board support element or a further printed circuit board counterholder, the second printed circuit board has a contact with an inner wall of the housing parts so that heat can be given off from the second printed circuit board to the housing parts. It can therefore also be provided that a further printed circuit board support element and/or a further printed circuit board counterholder are/is formed in such a way that a second printed circuit board is held fixed against an inner wall of the housing parts in the assembled state of the housing parts. By holding the second printed circuit board fixed against an inner wall of the housing parts with a further printed circuit board support element or a further printed circuit board counterholder, the second printed circuit board can be cooled by dissipating heat to a housing part.
  • a housing inside of a housing part forms the printed circuit board support or the printed circuit board counterholder.
  • at least one housing part on which the second printed circuit board is arranged with contact to the inner surface of the housing part is formed from a material with good thermal conductivity.
  • the second printed circuit board is a component of the power electronics, for example an insulated-gate bipolar transistor (IGBT).
  • the housing according to the invention has a component of the power electronics, for example an IGBT, which is held fixed against an inner wall of the housing parts in the assembled state of the housing parts, so that heat of the component of the power electronics, for example the IGBT, can be dissipated to the housing part via the inside of the housing.
  • the component of the power electronics for example the IGBT
  • the IGBT is in electrical contact with a first printed circuit board, which is arranged spaced from the component of the power electronics, for example the IGBT.
  • At least one housing part can be formed from a material with good thermal conductivity, for example a metal.
  • the at least one printed circuit board support element and/or the at least one printed circuit board counterholder can be formed on the end face in such a way that in the assembled state of the housing parts they engage through an opening in a printed circuit board in a form-locking manner at their end faces.
  • the printed circuit board support element has a blind hole or is formed as a hollow cylinder, wherein a printed circuit board counterholder that is formed coaxial oppositely has a guide mandrel formed on end faces, which during an assembly of the housing parts engages in a form-locking manner the blind hole of the printed circuit board support element or an end face opening of the printed circuit board support element, the printed circuit board being fixed between the printed circuit board support element and the printed circuit board counterholder.
  • the at least one printed circuit board support element and/or the at least one printed circuit board counterholder can be formed as indents in the material of the housing parts.
  • the housing according to the invention does not require additional attachment means for attaching a printed circuit board, the number of the means for attaching a printed circuit board can be reduced in the housing assembly, whereby the assembly process can be shortened in time.
  • the printed circuit board has a larger open area, which can improve the cooling of power electronic components.
  • the printed circuit board support element and the printed circuit board counterholder can be shaped from the material of the housing parts.
  • the printed circuit board support element and the printed circuit board counterholder press at the same time against a printed circuit board arranged in the cavity and against the inside of the housing, wherein the printed circuit board is fixed between the printed circuit board support element and the printed circuit board counterholder.
  • the support of a housing part designed as a cover against a housing bottom stabilizes the cover with regard to vibrations and noise.
  • the printed circuit board support element and the printed circuit board counterholder can be formed to be hollow in order to achieve improved rigidity. This can lead to an improved performance in terms of reducing the audible and perceptible vibrations in the motor vehicle, the so-called NVH, i.e. noise, vibration and roughness.
  • Fig. 1 shows a sectional view of a configuration of the housing according to the invention
  • Fig. 2 shows a detailed representation of a first configuration of a printed circuit board support element and a printed circuit board counterholder of the housing according to the invention
  • Fig. 3a and 3b show a detailed representation of a second configuration of a printed circuit board support element and a printed circuit board counterholder of the housing according to the invention
  • Fig. 4a and 4b show a detailed representation of a third configuration of a printed circuit board support element and a printed circuit board counterholder of the housing according to the invention
  • Fig. 5a and 5b show a detailed representation of a fourth configuration of a printed circuit board support element and a printed circuit board counterholder of the housing according to the invention
  • Fig. 6a and 6b show a detailed representation of a fifth configuration of a printed circuit board support element and a printed circuit board counterholder of the housing according to the invention
  • Fig. 7a and 7b show a detailed representation of a sixth configuration of a printed circuit board support element and a printed circuit board counterholder of the housing according to the invention.
  • Fig. 8a and 8b show a detailed representation of a seventh configuration of a printed circuit board support element and a printed circuit board counterholder of the housing according to the invention.
  • Figure 1 shows a sectional view of a configuration of the housing 1 according to the invention.
  • the dash-dot line characterizes a section through the housing 1, so that the housing 1 is shown halfway. This means that all the components of the housing 1 according to the invention can be designed in mirror image to the left of the dash-dot line.
  • the housing 1 has two housing parts 2 and 3, a first housing part 2 being formed as a housing lower part and a second housing part 3 being formed as a housing cover.
  • the first housing part 2 and the second housing part 3 are formed complementarily. This means that the housing parts 2 and 3 cooperate on top of each other on the edge side in such a way that a cavity 4 is formed between the housing inner surfaces of the housing parts 2 and 3.
  • the second housing part 3 is attached to the first housing part 2 by means of a screw 5.
  • the screw 5 is inserted through an opening in the second housing part 3 and screwed into a thread formed on the edge side of the first housing part 2.
  • the first housing part 2 and/or the second housing part 3 have/has latching elements which latch into latching openings formed in the respective opposite housing part 2 or 3 in order to provide a connection between the housing parts 2 and 3.
  • a printed circuit board support is formed on the inside of the housing, which has a printed circuit board support element 6 formed to project into the cavity 4.
  • the printed circuit board support element 6 is formed in the form of a cylinder from the material of the first housing part 2.
  • the printed circuit board support element 6 is formed in the form of an indent in the first housing element 2.
  • the end surface of the printed circuit board support element 6 serves to support a first printed circuit board 7.
  • the end surface of the printed circuit board support element 6 is formed at a distance from the inner surface of the housing of the first housing element 2, so that there is a free space between a bottom of a first printed circuit board 7 and the inside of the housing of the first housing part 2.
  • the printed circuit board counterholders 8.1 and 8.2 projecting into the cavity 4 are formed.
  • the printed circuit board counterholders 8.1 and 8.2 can be formed as cylindrical indents in the material of the second housing part 3.
  • a first printed circuit board counterholder 8.1 is formed coaxially opposite the printed circuit board support element 6, wherein the first printed circuit board counterholder 8.1 has a smaller diameter than the printed circuit board support element 6.
  • the first printed circuit board counterholder 8.1 has an end surface which is smaller than the opposite end surface of the printed circuit board support element 6. Between the opposite end surfaces of the first printed circuit board support element 6 and the first printed circuit board counterholder 8.1 a distance is formed which is equal to or slightly smaller than the thickness of the first printed circuit board 7.
  • the first printed circuit board 7 is held and fixed between the end surfaces of the printed circuit board support element 6 and the first printed circuit board counterholder 8.1.
  • the housing walls each act as an elastic element.
  • the first printed circuit board 7 arranged in the cavity 4 is held fixed between the printed circuit board support element 6 and the first printed circuit board counterholder 8.1 with no need for further attachment elements for receiving and attaching the first printed circuit board 7.
  • elastic elements can be provided, which are formed on the end surfaces of the printed circuit board support element 6 and the first printed circuit board counterholder 8.1 on the contact side to the printed circuit board in each case in order to exert a compressive force on the first printed circuit board 7.
  • Such elastic elements can be formed in the form of rubber pads. Elastic elements advantageously have a vibration-damping effect.
  • the housing 1 has a second printed circuit board counterholder 8.2 formed to project into the cavity 4 which is longer than the first printed circuit board counterholder 8.1.
  • the end surface of the second printed circuit board counterholder 8.2 is at a greater distance from the inside of the housing of the second housing part 3 than the end surface of the first printed circuit board counterholder 8.1 from the inside of the housing of the second housing part 3.
  • an insulated-gate bipolar transistor 9 IGBT for short
  • the IGBT 9 is a component of the power electronics and has a conductor contact 10 with the first printed circuit board 7.
  • heat can be dissipated from the IGBT 9 to the housing part 2.
  • the arrangement of the IGBT 9 on the inside of the housing of the first housing part 2 thus causes the IGBT 9 to be cooled.
  • the housing part 2 is formed from a material with good thermal conductivity.
  • the IGBT 9 and the first printed circuit board 7 are arranged spaced in parallel.
  • the distance between the end surface of the second printed circuit board counterholder 8.2 and the inside of the housing of the second housing part 3 is slightly smaller than the thickness of the IGBT 9, so that a punctiform compressive force is exerted on the IGBT 9, which fixes the IGBT 9 in the assembled state of the housing parts 2 and 3 with no need for additional attachment means.
  • the second printed circuit board counterholder 8.2 can be formed next to the printed circuit board 7, that is to say between the first printed circuit board 7 and an inside of the housing parts 2 and 3, without touching the first printed circuit board 7. Furthermore, the second printed circuit board counterholder 8.2 can be formed to pass through an opening 11 through the first printed circuit board 7. In this case, the second printed circuit board counterholder can be formed in such a way that it fixes the printed circuit board 7.
  • Figure 2 shows a detailed representation of a first configuration of a printed circuit board support element 6 of a printed circuit board support and a first printed circuit board counterholder 8.1 of the housing 1 according to the invention.
  • the printed circuit board support element 6 is formed cylindrically and has a cylindrical blind hole 12 in its end surface.
  • a first printed circuit board 7 is arranged on the ring-shape formed end surface of the printed circuit board support element 6 in such a way that the opening 11 in the first printed circuit board 7 corresponds to the blind hole 12 of the printed circuit board support element 6.
  • the cylindrically formed first printed circuit board counterholder 8.1 has a cylindrical guide mandrel 13 which is inserted through the opening 11 into the blind hole 12.
  • the ring-shape formed end surface of the first printed circuit board counterholder 8.1 is supported on the surface of the first printed circuit board 7, so that the first printed circuit board 7 is fixed between the printed circuit board support element 6 and the first printed circuit board counterholder 8.1.
  • the distance between the end surface of the guide mandrel 13 and the end surface of the first printed circuit board counterholder 8.1 is less than the distance between the end face of the first printed circuit board counterholder 8.1 and the bottom of the blind hole 12, so that an interspace is formed between the end surface of the guide mandrel 13 and the bottom of the blind hole 12.
  • the first printed circuit board 7 By holding the first printed circuit board 7 with the opening 11 between the printed circuit board support element 6 and the first printed circuit board counterholder 8.1 by means of the guide mandrel 13, the first printed circuit board 7 is fixed orthogonally to the orientation of the printed circuit board support element 6 and the first printed circuit board counterholder 8.1.
  • Figures 3a and 3b show a detailed representation of a second configuration of a printed circuit board support element 6 of a printed circuit board support and a first printed circuit board counterholder 8.1 of the housing 1 according to the invention, shown in Figure 1, with the housing parts 2 and 3.
  • a first printed circuit board 7 is arranged on the ring-shape formed end surface of the printed circuit board support element 6 in such a way that the opening 11 in the first printed circuit board 7 corresponds to the blind hole 12 of the printed circuit board support element 6.
  • Figure 3a shows the printed circuit board support element 6 of a printed circuit board support and the first printed circuit board counterholder 8.1 prior to the assembly of the housing parts 2 and 3 and in the disassembled state of the housing parts 2 and 3, respectively,
  • Figure 3b showing the cooperation of the printed circuit board support element 6 of the printed circuit board support and the first printed circuit board counterholder 8.1 in the assembled state of the housing parts 2 and 3.
  • Figures 3a and 3b correspond substantially to the first configuration represented in Figure 2, with the difference that the guide mandrel 13 is chamfered on the end face. The chamfer formed on the end face of the guide mandrel 13 facilitates the introduction of the guide mandrel 13 into the blind hole 12.
  • Figures 4a and 4b show a detailed representation of a third configuration of a printed circuit board support element 6 of a printed circuit board support and a first printed circuit board counterholder 8.1 of the housing 1 according to the invention, shown in Figure 1, with the housing parts 2 and 3.
  • a first printed circuit board 7 is arranged on the ring-shape formed end surface of the printed circuit board support element 6 in such a way that the opening 11 in the first printed circuit board 7 corresponds to the blind hole 12 of the printed circuit board support element 6.
  • Figure 4a shows the printed circuit board support element 6 of a printed circuit board support and the first printed circuit board counterholder 8.1 prior to the assembly of the housing parts 2 and 3 and in the disassembled state of the housing parts 2 and 3, respectively
  • Figure 4b showing the cooperation of the printed circuit board support element 6 of the printed circuit board support and the first printed circuit board counterholder 8.1 in the assembled state of the housing parts 2 and 3.
  • the guide mandrel 13 is formed in the form of a pointed cone.
  • the blind hole 12 is formed in the form of a pointed cone, so that the guide mandrel 13 is inserted into the blind hole 12 in a form-locking manner in the assembled state according to Figure 4b.
  • Figures 5a and 5b show a detailed representation of a fourth configuration of a printed circuit board support element 6 of a printed circuit board support and a first printed circuit board counterholder 8.1 of the housing 1 according to the invention, shown in Figure 1, with the housing parts 2 and 3.
  • a first printed circuit board 7 is arranged on the ring-shape formed end surface of the printed circuit board support element 6 in such a way that the opening 11 in the first printed circuit board 7 corresponds to the blind hole 12 of the printed circuit board support element 6.
  • Figure 5a shows the printed circuit board support element 6 of a printed circuit board support and the first printed circuit board counterholder 8.1 prior to the assembly of the housing parts 2 and 3 and in the disassembled state of the housing parts 2 and 3, respectively,
  • Figure 5b showing the cooperation of the printed circuit board support element 6 of the printed circuit board support and the first printed circuit board counterholder 8.1 in the assembled state of the housing parts 2 and 3.
  • the configuration shown in Figures 5a and 5b substantially corresponds to the configuration shown in Figures 3a and 3b, with a disk spring 14 (arrow) being arranged between the end face of the first printed circuit board counterholder 8.1 and the first printed circuit board 7, which disk spring is received by the guide mandrel 13.
  • the disk spring 14 exerts a force acting axially on the printed circuit board support element 6 and the first printed circuit board counterholder 8.1, which acts as a counterforce to the force exerted by the housing parts in the assembled state according to Figure 5b on the first printed circuit board 7.
  • Figures 6a and 6b show a detailed representation of a fifth configuration of a printed circuit board support element 6 of a printed circuit board support and a first printed circuit board counterholder 8.1 of the housing 1 according to the invention, shown in Figure 1, with the housing parts 2 and 3.
  • a first printed circuit board 7 is arranged on the ring-shape formed end surface of the printed circuit board support element 6 in such a way that the opening 11 in the first printed circuit board 7 corresponds to the blind hole 12 of the printed circuit board support element 6.
  • Figure 6a shows the printed circuit board support element 6 of a printed circuit board support and the first printed circuit board counterholder 8.1 prior to the assembly of the housing parts 2 and 3 and in the disassembled state of the housing parts 2 and 3, respectively,
  • Figure 6b showing the cooperation of the printed circuit board support element 6 of the printed circuit board support and the first printed circuit board counterholder 8.1 in the assembled state of the housing parts 2 and 3.
  • the configuration shown in Figures 6a and 6b substantially corresponds to the configuration shown in Figures 3a and 3b, with a bevel washer 15 (arrow) being arranged between the end face of the first printed circuit board counterholder 8.1 and the first printed circuit board 7, which bevel washer is received by the guide mandrel 13.
  • the bevel washer 15 substantially corresponds to the function of the disk spring 14 of the configuration shown in Figures 5a and 5b. In contrast to the configuration shown in Figures 5a and 5b, the bevel washer 15 can be attached to the end face of the first printed circuit board counterholder 8.1.
  • Figures 7a and 7b show a detailed representation of a sixth configuration of a printed circuit board support element 6 of a printed circuit board support and a first printed circuit board counterholder 8.1 of the housing 1 according to the invention, shown in Figure 1, with the housing parts 2 and 3.
  • a first printed circuit board 7 is arranged on the ring-shape formed end surface of the printed circuit board support element 6 in such a way that the opening 11 in the first printed circuit board 7 corresponds to the blind hole 12 of the printed circuit board support element 6.
  • Figure 7a shows the printed circuit board support element 6 of a printed circuit board support and the first printed circuit board counterholder 8.1 prior to the assembly of the housing parts 2 and 3 and in the disassembled state of the housing parts 2 and 3, respectively,
  • Figure 7b showing the cooperation of the printed circuit board support element 6 of the printed circuit board support and the first printed circuit board counterholder 8.1 in the assembled state of the housing parts 2 and 3.
  • the printed circuit board support element 6 has a spring sleeve 16 formed on the end face, into which the opposite guide mandrel 13 of the first printed circuit board counterholder 8.1 is inserted in the assembled state according to Figure 7b.
  • the spring sleeve 16 exerts a force acting in the direction of the arrows 17.
  • Figures 8a and 8b show a detailed representation of a seventh configuration of a printed circuit board support element 6 of a printed circuit board support and a first printed circuit board counterholder 8.1 of the housing 1 according to the invention, shown in Figure 1, with the housing parts 2 and 3.
  • a first printed circuit board 7 is arranged on the ring-shape formed end surface of the printed circuit board support element 6 in such a way that the opening 11 in the first printed circuit board 7 corresponds to the blind hole 12 of the printed circuit board support element 6.
  • Figure 8a shows the printed circuit board support element 6 of a printed circuit board support and the first printed circuit board counterholder 8.1 prior to the assembly of the housing parts 2 and 3 and in the disassembled state of the housing parts 2 and 3, respectively,
  • Figure 8b showing the cooperation of the printed circuit board support element 6 of the printed circuit board support and the first printed circuit board counterholder 8.1 in the assembled state of the housing parts 2 and 3.
  • the printed circuit board support element 6 has latching elements 18 formed on the end face, with a latching head 19 having a larger cross section than the shaft cross section of the guide mandrel 13 being formed at the guide mandrel 13 of the first printed circuit board counterholder 8.1, which, in the assembled state, according to Figure 8b of the housing parts 2 and 3 latches into the latching elements 18.
  • Due to the latching head 19 of the guide mandrel 13 the latching elements 18 are pressed radially flexibly apart when the housing parts 2 and 3 are assembled, so that the latching head 19 can latch between the latching elements 18.
  • the latching elements 18 have hooks which engage behind the latching head 19 and thus counteract an axial loosening of the latching head 19.
  • the latching elements 18 can therefore be used to hold the housing parts 2 and 3 together in the assembled state according to Figure 8b.
  • the invention relates to a housing for receiving at least one printed circuit board.
  • the housing can be used in particular in the motor vehicle sector in a passenger car or commercial vehicle with an electric compressor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
PCT/KR2020/017818 2019-12-20 2020-12-08 Housing for receiving a printed circuit board WO2021125658A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019135429.3 2019-12-20
DE102019135429.3A DE102019135429A1 (de) 2019-12-20 2019-12-20 Gehäuse zur Aufnahme einer Leiterplatine

Publications (1)

Publication Number Publication Date
WO2021125658A1 true WO2021125658A1 (en) 2021-06-24

Family

ID=76205770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2020/017818 WO2021125658A1 (en) 2019-12-20 2020-12-08 Housing for receiving a printed circuit board

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DE (1) DE102019135429A1 (de)
WO (1) WO2021125658A1 (de)

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