• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a power arrangement (10) for a vehicle comprising an AC charger (12) for an external AC voltage and for supplying a direct voltage HV, a control device. HV regulation (14) for regulating an HV battery accumulator, a DC / DC converter (16) for converting the direct HV voltage into an on-board network voltage, and an HV voltage distribution (18), the charger AC (12) being realized with a semiconductor technique without galvanic isolation and the power arrangement (10) having a housing (22) in which are arranged the AC charger (12), the HV regulator (14) , the DC / DC converter (16) and the HV voltage distribution (18) forming an integrated housing (20). The invention further relates to a vehicle comprising such a power arrangement (10). Figure to be published with the abstract: Fig. 1
    公开号:FR3078509A1
    申请号:FR1901031
    申请日:2019-02-04
    公开日:2019-09-06
    发明作者:Daniel Spesser；Fabian Grill
    申请人:Dr Ing HCF Porsche AG；
    IPC主号:
    专利说明:

    Description
    Title of the invention: Integrated so-called “Power Box” for a motor vehicle and associated vehicle The present invention relates to a power arrangement for a vehicle comprising an AC charger for connection to an external AC voltage supply to provide a HV direct voltage to the vehicle, an HV regulating device for regulating a vehicle HV battery accumulator, a DC / DC converter for converting the HV direct voltage into a vehicle on-board network voltage, and a voltage distribution HV to distribute the HV direct voltage in the vehicle.
    In addition, the invention relates to a vehicle comprising a power arrangement as above.
    Due to the increasing presence on the market of electric drives in automobile construction, this results in changes in the construction of these vehicles. Nowadays, vehicles with electric drives are still often small series models which are very expensive to manufacture. In order to allow greater distribution of electric drives also in large series with high numbers of parts, optimizations are therefore necessary compared to previous constructions. Current vehicle architectures must be analyzed and optimized.
    [0004] In order to allow electrical drive, a high voltage power supply (HV, high voltage) in the form of direct voltage is today provided in the vehicle in a range of several hundred volts. Vehicles with electric drives therefore typically include an AC charger, an HV regulator, a DC / DC converter and an HV voltage distribution. These HV components together form a high voltage power arrangement. In addition, a vehicle with electrical drive usually has an HV battery accumulator for storing electrical energy. In the HV battery accumulator are connected a plurality of individual battery cells with each other in series, in order to provide a direct voltage HV. Higher current can be supplied by parallel arrangement of such sections of battery cells. Optionally, by a DC / DC converter, the voltage supplied by the HV battery pack can be increased to a DC direct voltage.
    The HV components mentioned above are currently supplied individually in the vehicle, that is to say that each of the HV components comprises a clean housing, is mounted separately in the vehicle, is electrically wired and installed in the vehicle. individually and includes own cooling with a separate cooling duct system. This requires a high mounting cost and requires a high weight as well as significant packaging costs.
    Through the AC charger, the vehicle can be connected to charge its HV battery accumulator to an external AC voltage supply. Current AC chargers, for safety reasons, are made with an isolation transformer in order to achieve galvanic isolation between the AC voltage supply and a HV direct voltage in the vehicle. The galvanic isolation provides protection against electric shock and prevents a direct current recharge from the vehicle to the external AC voltage supply. This galvanic isolation requires relatively a lot of space in the AC charger, is heavy and is usually expensive.
    Known in this context, from document DE 11 2006 003 033 T5, a system and a method for general control of power converters.
    We also know from document DE 10 2015 219 917 A1, a power conversion module for a vehicle. This module has a housing and a power conversion unit which is installed on an interior surface of a housing bottom panel. The power conversion unit has a capacitor module, a power module, an inverter and an LDC converter. A water-cooling type cooling unit is installed at an exterior surface of the bottom panel of the housing and is arranged in a position corresponding to the power module of the inverter and to the LDC, the bottom panel of the housing being inserted between them. An air cooling type cooling fin is installed at the exterior surface of the bottom panel and is disposed in a position corresponding to a capacitor module, the bottom panel of the housing being inserted therebetween.
    In addition, we know from document DE 10 2014016 076Al, a DC / DC converter for a motor vehicle comprising two high voltage connections, a high voltage DC / AC converter having a voltage converter switch, a transformer galvanically isolated, a low voltage AC / DC converter, an intermediate current circuit with an intermediate circuit capacity, and a converter module connected to the intermediate current circuit for converting an intermediate circuit voltage from the intermediate current circuit to a voltage continuous low voltage. The converter module includes two low voltage connections. A device for controlling the high-voltage converter switch is designed to control the high-voltage converter switch with a predefined and fixed duty cycle, so that the transformation ratio of a high-voltage direct voltage and the intermediate circuit obtained via the high voltage DC / AC converter, the transformer and the low voltage AC / DC converter is constant.
    In addition, from document DE 10 2015 223 655 A1, an AC / DC converter of an energy conversion device is known which has filters, a PFC circuit, a first integral bridge circuit. , a first transformer and a first rectifier circuit which converts an AC voltage supplied from the outside into DC voltage. A DC / DC converter has filters, a second integral bridge circuit, a second transformer and a second rectifier circuit and reduces a DC voltage supplied by the AC / DC converter. The circuit components of the AC / DC converter which are placed on the primary side of the first transformer are mounted on the upper surface of a cooling box which cools the two converters. The components of the AC / DC converter circuit which are placed on the secondary side of the first transformer and the components of the DC / DC converter circuit are mounted on the lower side of the cooling box.
    Starting from the state of the art cited above, the invention therefore aims to provide a power arrangement as well as a vehicle having a power arrangement of the type mentioned above, the arrangement power to be cost-effectively manufactured, to be easily assembled, light in weight and compact in design, generating low electrical losses and further to be economically manufactured.
    This objective is achieved according to the invention by a power arrangement for a vehicle comprising an AC charger for connection to an external AC voltage supply and for supplying a DC direct voltage to the vehicle, an HV control device for the regulation of a vehicle HV battery accumulator, a DC / DC converter for converting the HV direct voltage into an on-board network voltage of the vehicle, and an HV voltage distribution for distributing the HV direct voltage in the vehicle, characterized in that the AC charger is made with a semiconductor technique without galvanic isolation and the power arrangement has a housing in which the AC charger, the HV regulator, the DC / DC converter and the voltage distribution are arranged HV by forming an integrated “Power Box” power box and a vehicle comprising a power arrangement according to the invention.
    According to the invention, there is therefore provided a power arrangement for a vehicle comprising an AC charger for connection to an external AC voltage supply and for supplying a DC direct voltage to the vehicle, an HV regulating device for the regulation of a vehicle HV battery accumulator, a DC / DC converter to convert the DC direct voltage into an on-board network voltage of the vehicle, and an HV voltage distribution to distribute the direct DC voltage in the vehicle, the charger AC being produced with a semiconductor technique without galvanic isolation and the power arrangement having a housing in which the AC charger, the HV regulator, the DC / DC converter and the HV voltage distribution are arranged, forming a so-called housing Integrated "Power Box".
    According to the invention, there is further provided a vehicle comprising such a power arrangement.
    The idea underlying the present invention is therefore to provide a so-called "Power Box" or "power box" integrated by an intelligent collection of HV functions (high voltage functions), which allows advantages in terms conditioning, efficiency, weight, cost and yield. Thus, the connection paths between individual components, i.e. the AC charger, the HV controller, the DC / DC converter and the HV voltage distribution, can be reduced by the common arrangement. This applies to both the electrical cables as well as for example the refrigerant lines for cooling the individual components of the integrated Power Box, so that the cable lengths and cooling line lengths can be reduced and save weight. In addition, in a conventional construction, each of the components must be individually connected each time. The integrated Power Box can be installed more efficiently than individual components. Thanks to an additional optimization of the AC charger, bypassing a conventional transformer, we thus obtain different degrees of freedom for the configuration of the integrated Power Box. Such an AC charger also has a high efficiency.
    The vehicle is in particular a vehicle with an electric drive which is supplied with electrical energy by means of the integrated Power Box. The vehicle can be driven exclusively by electric means, or can present, as a so-called hybrid vehicle, a combination of an electric drive and another drive, for example by a conventional internal combustion engine.
    The AC charger is used for connection to an external AC voltage supply and for converting the external AC voltage into a direct voltage HV which is supplied in the vehicle. In the case of a vehicle with a generation of electrical energy, which is also known by the name of Range Extender, electrical energy from the Range Extender can in principle also be converted by means of the AC charger and be driven in the HV battery pack or in the drive. The AC charger is produced as a power electronic element by a semiconductor technique without galvanic isolation. This makes it possible to supply an AC charger and, correspondingly, to supply a Power box.
    Integrated box, with a low weight. The fact of doing without a transformer also allows a reduction of a necessary construction space. The AC charger can be connected via a charging cable or inductively to the external AC voltage supply.
    The HV control device is used to regulate the vehicle's HV battery accumulator. The HV battery accumulator is typically traversed by a heat transfer fluid which can heat and / or cool the HV battery accumulator, for example as a function of a battery charge, an operating mode and / or conditions environmental. Thus, the HV control device can include a HV heating device which heats the heat transfer fluid in the case of low temperatures. The heated fluid flows through a battery circuit to bring the HV battery accumulator to a higher temperature level and to obtain an associated reduction in internal resistance. Correspondingly, a higher available system power can be obtained. If the temperature of the HV battery accumulator rises above a limit value, the HV controller can cool the HV battery accumulator in order to protect the battery cells. The HV control device is located in the integrated Power Box so that it is ideally placed in the fluid circuit. As heating element, heating stones or a surface resistance are used in the HV heating device. The surface resistance is located over a large area in the integrated Power Box so that maximum heat is introduced into the battery circuit through a special thermally conductive material. The HV control device is made with semiconductor switching elements for control.
    The DC / DC converter performs a conversion of the DC voltage HV into a vehicle on-board network voltage. The DC / DC converter converts the HV direct voltage, as supplied by the AC charger or by a vehicle HV battery accumulator for driving, into vehicle on-board network voltage. The direct voltage HV may for example be approximately 800 V. The on-board network voltage is typically 12 V, but can also take values of 24 V or 48 V. The DC / DC converter is preferably produced in the form of electronic power element in a semiconductor technique, for example in the form of step-up or step-down converter, or in the form of step-up power converter.
    HV voltage distribution allows distribution of the HV direct voltage in the vehicle. In principle, any HV consumers can be supplied via the HV voltage distribution into HV direct voltage. In particular, an electric drive of the vehicle is associated with the voltage distribution
    H V. The HV voltage distribution typically comprises several conductive rails and switching devices for the connection or cutting of individual sections. In order to facilitate maintenance and / or repair, the HV voltage distribution is positioned in an upper region in the integrated Power Box so that it can be easily accessed from above when mounted in an engine compartment of the vehicle.
    The housing is produced in the form of a common housing for all the components, that is to say that it comprises the AC charger, the HV regulation device, the DC / DC converter and the HV voltage distribution. In addition, a common connection to cooling can be provided through the housing. The housing is preferably made from lightweight building materials. Such light building materials include for example plastics or light metals such as aluminum, plastics or other non-electrically conductive materials being preferred.
    Thanks to the realization of the power arrangement as an integrated Power Box, a single cooling for the Power Box can jointly cool all the components contained inside of it. Cooling dissipates the heat generated at the power and contact resistors of the electrical components and their connections to each other in order to avoid damage from overheating and to reduce the ohmic resistance by lowering the temperature.
    In an advantageous configuration of the invention, the power arrangement has a material with safety function for the electrical protection of the AC charger. Preferably, the safety function equipment is an integral part of the AC charger. Safety-related equipment intervenes in the event of a breakdown to protect the vehicle. In particular, the equipment with safety function is produced and arranged so as to ensure, in the event of a breakdown, isolation of the AC charger from the external AC voltage supply. Security function hardware typically includes a plurality of switching elements. The switching elements can be produced electromechanically, for example in the form of circuit breakers, or purely electronically with power semiconductors. An embodiment with power semiconductors is preferred.
    According to a preferred configuration of the invention, the power arrangement has a safety device for isolating the DC / DC converter. Preferably, the safety device is an integral part of the DC / DC converter. The safety device intervenes in the event of a breakdown to protect the vehicle. In particular, the safety device is produced and arranged so as to effect, in the event of a breakdown, isolation of the DC / DC converter. The security device typically includes a plurality of switching elements. The switching elements can be produced electromechanically, for example in the form of circuit breakers, or purely electronically with power semiconductors. An embodiment with power semiconductors is preferred.
    According to a preferred configuration of the invention, the power arrangement has a switching device for switching the HV voltage distribution. Preferably, the switching device is an integral part of the HV voltage distribution. The switching device typically includes a plurality of switching elements. The switching elements can be produced electromechanically, for example in the form of circuit breakers, or purely electronically with power semiconductors. An embodiment with power semiconductors is preferred.
    According to an advantageous configuration of the invention, the power arrangement has a modular construction with at least two modules, in particular with each time a module for the AC charger, the HV control device, the DC / converter. DC and HV voltage distribution. Due to the modular construction, different differently configured integrated Power Boxes can be supplied simply by selecting individual modules as required and combining them with the integrated Power Box. A modular construction also facilitates replacement of individual modules in the event of a breakdown or damage. In this case, the modules can be chosen and combined not only according to their electrical functions but also taking into account the construction sizes and mechanical requirements. Different vehicle platforms can be served correspondingly. In this case, a sufficient sealing concept between the modules is important in order to guarantee the safety of the components contained.
    According to a preferred configuration of the invention, the housing is produced in the form of a collision structure for stabilizing the vehicle, in particular in the form of a stabilization bar for at least one pair of domes of the vehicle. The integrated Power Box can thus form, in addition to its electrical function, a structural component which enhances the stability of the vehicle. Thus, thanks to a correspondingly configured housing, one or more anti-reconciliation bars can be dispensed with in the front part of the vehicle to stabilize the vehicle as a whole. Correspondingly, the integrated Power Box can for example be mounted between two front domes, a connection fitting the respective front dome being each time screwed to the integrated Power Box. The integrated Power Box can thus take over the function of one or more anti-reconciliation bars.
    According to a preferred configuration of the invention, the housing has at least one service valve which allows access to replaceable components of the power arrangement. Such replaceable components are, for example, fuses, so that after failure, simple replacement is possible. The fuses are in particular HV fuses, for example for the protection of the AC charger. Preferably, the integrated Power Box also includes an analysis circuit which monitors and possibly indicates a correct installation of the fuses and / or an opening of the service flap. In addition, an electronic system of a module can also be completely replaced by means of a service flap.
    According to a preferred configuration of the invention, internal electrical connections between the AC charger, the HV control device, the DC / DC converter and the HV voltage distribution are produced according to a "Blade" technology. In the so-called "Blade" technology, the electrical connection includes a measuring device and a faston. The measuring device, during the establishment of the electrical connection, penetrates into the faston and comes into contact with the latter by a friction and pressure process. Blade technology is designed to be able to establish and cut several times a connection between the measuring device and the faston.
    According to a preferred configuration of the invention, the power arrangement has an internal communication connection which connects the AC charger, the HV regulating device, the DC / DC converter and the HV voltage distribution to each other. . The communication connection can for example be manufactured on the basis of an internal communication bus used in the automotive sector, for example CAN, SPI or Lin, or also Ethernet. Preferably, the communication connector is shielded from electromagnetic radiation in order to meet the requirements for electromagnetic compatibility (EMV).
    The invention will be explained below by way of example with reference to the accompanying drawings using preferred embodiments, the features illustrated below may constitute an aspect of the invention on an individual basis as well as 'in combination.
    In the drawings:
    [Fig.l] illustrates a perspective representation of a power arrangement according to a first preferred embodiment with an AC charger, an HV regulator, a DC / DC converter and an HV voltage distribution, which are arranged in a common box forming an integrated Power Box, [fig. 2] illustrates a schematic representation of the AC charger of FIG. 1 with an input filter, a rectifier, a factor correction filter power, a smoothing element, a DC / DC converter, and an output filter, and [fig. 3] illustrates a schematic functional representation of the AC charger of FIG. 2 with a current monitoring device illustrated in addition and a cutout device also shown in addition.
    Figure 1 illustrates a power arrangement 10 according to the invention for a vehicle according to a first preferred embodiment. The vehicle of the first embodiment is an electric vehicle with an electric drive which is supplied with electric energy through the power arrangement 10.
    The power arrangement 10 includes an AC charger 12, a HV control device 14, a DC / DC converter 16 and a HV voltage distribution 18, which are arranged in a common housing 22 forming a Power Box integrated 20. Internal electrical connections between the AC charger 12, the HV regulating device 14, the DC / DC converter 16 and the HV 18 voltage distribution are made using a "Blade" technology.
    The AC charger 12 is used for connection to an external AC voltage supply 38 and for converting the AC voltage supplied by the latter into a direct voltage HV 40 which is supplied in the vehicle. The AC 12 charger is produced as an electronic power element using a semiconductor technique without galvanic isolation. The AC charger 12 is connected by means of a charging cable to the external AC voltage supply 38.
    The AC charger 12 of the first embodiment is illustrated in detail each time in part in Figures 2 and 3. In this case, the illustration of Figure 2 is based on a functional construction such that used for AC 12 chargers known per se. Correspondingly, the AC charger 12 comprises, as functional components, an input filter 24, a rectifier 26 with a plurality of semiconductor switching elements 28, a power factor correction filter 30, a smoothing element 32, a DC converter 34 and an output filter 36 which are mounted one behind the other in this order. On the input side, the AC charger 12 is connected to the AC voltage supply 38 and supplies the DC voltage HV 40 on the output side.
    The charger AC 12 further comprises a material with safety function 42 for the electrical protection of the charger AC 12, which is illustrated in Figure 3. The material with safety function 42 performs, in the event of a breakdown, insulation of the AC charger 12 of the external AC voltage supply 38. For this, the security function equipment 42 comprises an isolation device 44 with a plurality of switching elements not shown individually, which interrupt the connection with the AC 38 power supply when activated. The switching elements are produced in electronic form with power semiconductors.
    In addition, the equipment with safety function 42 includes a monitoring of the differential current 46, which monitors the differential currents in the three phases II, 12, 13 and the neutral conductor N of the external AC voltage supply 38. The hardware with safety function 42 further comprises a compensation device 48. A monitoring device 50 receives the differential currents measured in the monitoring of the differential current 46 in order to identify errors. In the event of a fault, the current monitoring device 50 controls the isolation device 44 in order to isolate the AC charger 12 from the external AC voltage supply 38, or the compensation device 48, in order to compensate. current. In addition, the DC / DC converter 34 is also controlled by the monitoring device 50, for example to deactivate the DC / DC converter 34 in the event of a failure in the AC charger 12.
    As illustrated in Figure 3, the AC charger 12 comprises, corresponding to the embodiments relating to Figure 2, an input filter 24 which is here designated by EMC filter. The input filter 24 is followed by the direct current converter 34 as well as the power factor correction filter 30. The direct current converter 34 and the power factor correction filter 30 are here made entirely. The outlet filter 36 is also mounted downstream of these in this illustration.
    On the output side, the DC voltage at HV 40 thus supplied is illustrated with an HV 52 battery accumulator. The HV control device 14, the DC / DC converter 16 and the voltage distribution HV 18 are also connected. at DC voltage HV 40.
    The HV regulating device 14 is used to regulate the HV 52 battery accumulator. The HV regulating device 14 is here produced in the form of a HV heating device 14. The HV 52 battery accumulator is traversed by a fluid heat transfer fluid in order to heat the HV 52 accumulator. The heating device HV 14 in this case heats the heat transfer fluid. The HV control device 14 is made with semiconductor elements for its control.
    The DC / DC converter 16 converts the DC voltage HV 40, as provided by the AC charger 12 or by the vehicle battery HV 52, into an on-board network voltage of the vehicle. The direct voltage HV 40 here has a value of 800 V and the on-board network voltage is worth 12 V. In an alternative embodiment, the voltage of the on-board network has a value of 24 V or 48 V. The DC converter / DC 16 is produced as an electronic power element using a semiconductor technique. In addition, the DC / DC converter 16 has a safety device for isolating the DC / DC converter 16. The safety device is designed and arranged so as to effect, in the event of a breakdown, isolation of the DC / DC converter 16. The device Security typically includes a plurality of switching elements. The switching elements are produced electronically with power semiconductors.
    The HV voltage distribution 18 distributes the DC voltage HV 40 in the vehicle. Consumers in the vehicle are supplied via the HV 18 voltage distribution in HV 40 direct voltage. This relates in particular to an electric drive of the vehicle. The HV 18 voltage distribution is positioned in an upper region in the housing 22. The HV 18 voltage distribution comprises several conductor rails and a switching device for connecting or cutting off individual supply branches. The switching device is made with individual switching elements which are made electronically with power semiconductors.
    The power arrangement 10 includes an internal communication connection not illustrated here which connects together the AC charger 12, the HV regulating device 14, the DC / DC converter 16 and the voltage distribution HV 18. The connection internal communication can be connected to a vehicle control device via an interface which is provided on the housing 22.
    The housing 22 is produced in the form of a common housing 22 for all the components 12, 14, 16, 18, in which the AC charger 12, the HV regulating device 14, the DC / DC converter 16 and the distribution of voltage HV 18 are arranged. Thanks to the housing 22, there is a joint connection of the integrated Power Box housing 20 to cooling. The housing 22 is made of plastic. The housing 22 has a service valve which allows access to replaceable components of the power arrangement 10.
    The housing 22 is produced in the form of a relevant structure in the event of a collision to stabilize the vehicle. The power arrangement 10, in the state mounted in the housing 22, is mounted as a stabilization bar, also called anti-approach bar, between two front domes of the vehicle. For this purpose, a connection fitting for the respective front dome is each time screwed to the integrated Power Box 20.
    The power arrangement 10 of the first embodiment has a modular construction, in which the AC charger 12, the HV regulating device 14, the DC / DC converter 16 and the voltage distribution HV 18 are at each both produced in the form of individual modules and are connected to the integrated Power Box 20. In this case, the individual modules are sealed with respect to one another in order to seal the housing 22 as a whole.
    Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    Power arrangement (10) for a vehicle comprising an AC charger (12) for connection to an external AC voltage supply (38) and for supplying a HV direct voltage (40) to the vehicle, an HV regulator (14) for regulating an HV battery accumulator (52) of the vehicle, a DC / DC converter (16) for converting the DC direct voltage HV (40) into an on-board network voltage of the vehicle, and an HV voltage distribution ( 18) for distributing the DC voltage HV (40) in the vehicle, characterized in that the AC charger (12) is produced with a semiconductor technique without galvanic isolation and the power arrangement (10) has a housing ( 22) in which the AC charger (12), the HV regulating device (14), the DC / DC converter (16) and the HV voltage distribution (18) are arranged, forming a so-called "Power Box" integrated (20). Power arrangement (10) according to claim 1, characterized in that the power arrangement (10) has a safety function material (42) for the electrical protection of the AC charger (12). Power arrangement (10) according to any one of claims 1 or 2, characterized in that the power arrangement (10) has a safety device for isolating the DC / DC converter (16).
    Power arrangement (10) according to any one of the preceding claims, characterized in that the power arrangement (10) has a switching device for switching the HV voltage distribution (18).
    Power arrangement (10) according to any one of the preceding claims, characterized in that the power arrangement (10) has a modular construction with at least two modules, in particular each with a module for the AC charger ( 12), the HV regulator (14), the DC / DC converter (16) and the HV voltage distribution (18).
    Power arrangement (10) according to any one of the preceding claims, characterized in that the housing (22) is produced [Claim 7] [Claim 8] [Claim 9] [Claim 10] in the form of a collision structure to stabilize the vehicle, in particular in the form of a stabilization bar for at least one pair of vehicle domes.
    Power arrangement (10) according to any one of the preceding claims, characterized in that the housing (22) has at least one service flap which allows access to replaceable components of the power arrangement (10).
    Power arrangement (10) according to any one of the preceding claims, characterized in that internal electrical connections between the AC charger (12), the HV control device (14), the DC / DC converter (16) and the HV voltage distribution (18) are made using “Blade” technology.
    Power arrangement (10) according to any one of the preceding claims, characterized in that the power arrangement (10) has an internal communication connection which connects the AC charger (12), the HV control device (14) , the DC / DC converter (16) and the HV voltage distribution (18) to each other.
    Vehicle comprising a power arrangement (10) according to any one of the preceding claims.
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    JP6749442B2|2020-09-02|
    KR20190105510A|2019-09-17|
    GB2573610A|2019-11-13|
    CN110228368A|2019-09-13|
    JP2019154228A|2019-09-12|
    US20190270417A1|2019-09-05|
    DE102018104914A1|2019-09-05|
    GB201902866D0|2019-04-17|
    KR102219517B1|2021-02-24|
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    法律状态:
    2020-02-19| PLFP| Fee payment|Year of fee payment: 2 |
    2021-02-24| PLFP| Fee payment|Year of fee payment: 3 |
    2021-11-26| PLSC| Publication of the preliminary search report|Effective date: 20211126 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018104914.5|2018-03-05|
    DE102018104914.5A|DE102018104914A1|2018-03-05|2018-03-05|Integrated power box|
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