JP2017085736A - On-vehicle electric apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle electric apparatus capable of easily satisfactory mounting requirements of a vehicle and reducing the size at a low cost.SOLUTION: The on-vehicle electric apparatus has a main circuit a plurality of electrical components of which is constituted of a plurality of sub-modules each divided on the basis of function respectively. The on-vehicle electric apparatus includes: connection means that electrically connects to a plurality of sub-modules; and an assembling plate on which the plurality of sub-modules and the connection means are disposed. The main circuit is constituted of at least the a plurality of sub-modules and the connection means and is cooled by the assembling plate.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an in-vehicle electric device mounted on a vehicle such as an electric vehicle using an electric motor as a drive source or a hybrid vehicle using an electric motor as one of the drive sources.

  Plug-in hybrid vehicles (hereinafter referred to as PHEV) and electric vehicles (hereinafter referred to as EV) are chargers for charging a high voltage battery from a commercial power source, and the voltage of the high voltage battery is 12 [V] system DC / DC converter for stepping down to the voltage of the low voltage battery, DC / DC converter for boosting the voltage of the low voltage battery of 12 [V] system to the voltage of the high voltage battery, and an inverter for driving the motor Equipped with electrical equipment.

  Conventionally, an in-vehicle electric device has been proposed in which electric components such as a semiconductor element, a transformer, a reactor, and a capacitor incorporated therein are mounted on a watertight plate (see, for example, Patent Document 1). Conventionally, semiconductor parts that generate heat via a heat conductive resin sheet are individually arranged on the upper surface of a water channel of a metal case provided with a water channel, and a recess for housing a transformer and a reactor is provided in the metal case. There has been proposed an in-vehicle electric device that is individually inserted into the recess and cools these electric components through an insulating heat conductive resin (for example, see Patent Document 2). The conventional in-vehicle electric devices disclosed in Patent Document 1 and Patent Document 2 described above are such that electric components incorporated therein are individually incorporated in a watertight plate or a metal case.

JP 2004-296673 A Japanese Patent No. 5535292

  As is well known, the structure of PHEV is more complicated than that of a normal gasoline vehicle, and there are many devices that are mounted in addition to on-vehicle electrical devices. For this reason, in PHEV, the space for mounting an in-vehicle electric device is limited, and the demand for downsizing and cost reduction of the in-vehicle electric device mounted in PHEV is very strong. In addition, since EVs are relatively small in size and have a limited mounting space for in-vehicle electric devices, there is a strong demand for miniaturization and cost reduction for in-vehicle electric devices mounted on EVs. ing.

  Furthermore, in recent years, the production of PHEV and EV has increased, and the types of vehicles have also diversified. Therefore, in-vehicle electric devices mounted on PHEVs and EVs individually correspond to different mounting requirements for each vehicle type, such as the outer shape and the position of the input / output unit, in addition to the above-mentioned demands for miniaturization and cost reduction. Is required. In conventional in-vehicle electric devices such as those disclosed in Patent Document 1 and Patent Document 2, various parts are individually incorporated in the in-vehicle electric device. In response to a request to change the position of the input / output unit, it is necessary to redesign the components and component layout in the in-vehicle electric device.

  Therefore, in the conventional in-vehicle electrical equipment in which the parts are individually incorporated as described above, the external shape and the position of the input / output unit are changed in accordance with the increase in the number of models on which the parts are mounted and the vehicle layout change. There is a problem that the design man-hour increases in response to the demand.

  In addition, because the part shape is a dedicated specification for each vehicle model, the part cost, production equipment, tool cost, etc. increase, making it difficult to reduce the cost and incorporating the parts individually into the in-vehicle electrical equipment. Therefore, a lot of space is required for securing insulation and assembling them, and it is difficult to reduce the size of the on-vehicle electric device.

  As one of the measures for realizing miniaturization of these in-vehicle electric devices, it is conceivable to increase the switching frequency of the semiconductor switching element. Transformers and reactors used in in-vehicle electric devices can be reduced in size by increasing the switching frequency, but this creates a new problem that the heat generation density increases. The heat generated by the transformer and the reactor not only causes the performance of the magnetic component to deteriorate due to its own heat generation, but also exposes peripheral components to high temperatures.

  The present invention has been made to solve the above-mentioned problems in conventional in-vehicle electric devices, and can easily meet the mounting requirements of the vehicle, and thus can be reduced in size and cost. The purpose is to obtain an in-vehicle electrical device.

The in-vehicle electric device according to the present invention is
An in-vehicle electric device that is mounted on a vehicle having at least one of a motor as a drive source and includes a main circuit that performs a predetermined operation,
A plurality of modules divided into a plurality of electrical components of the main circuit;
Connection means electrically connected to the plurality of modules;
An assembly plate on which the plurality of modules and the connection means are installed;
With
The main circuit is composed of at least the plurality of modules and the connection means and is cooled by the assembly plate.
It is characterized by that.

Moreover, the in-vehicle electric device according to the present invention is
An in-vehicle electric device that is mounted on a vehicle having at least one of a motor as a drive source and includes a main circuit that performs a predetermined operation,
The plurality of electrical components in the main circuit are each composed of a plurality of submodules divided into functional elements,
Connection means electrically connected to the plurality of sub-modules;
An assembly plate on which the plurality of submodules and the connection means are installed;
With
The main circuit is composed of at least the plurality of submodules and the connection means and is cooled by the assembly plate.
It is characterized by that.

  According to the in-vehicle electrical device according to the present invention, the plurality of modules divided for each of the plurality of electrical components of the main circuit, the connection means electrically connected to the plurality of modules, and the plurality of modules Comprising a module and an assembly plate on which the connection means is installed, wherein the main circuit is constituted by at least the plurality of modules and the connection means and is cooled by the assembly plate. Therefore, it is possible to easily meet the mounting requirements of the vehicle, and thus to obtain an in-vehicle electric device that can be reduced in size and cost.

  According to the on-vehicle electrical apparatus according to the present invention, the plurality of electrical components in the main circuit are each composed of a plurality of submodules divided for each functional element, and the plurality of submodules. Connecting means electrically connected to the plurality of submodules, and an assembly plate on which the connecting means is installed, wherein the main circuit includes at least the plurality of submodules and the connecting means. Since it is configured and is cooled by the assembly plate, it is possible to easily and finely meet the mounting requirements of the vehicle, and thus to obtain an in-vehicle electric device that can be reduced in size and cost. be able to.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram of the vehicle-mounted electrical equipment by Embodiment 1 of this invention. It is a block diagram of the vehicle-mounted electrical equipment by Embodiment 2 of this invention. It is a main circuit diagram of the vehicle-mounted electric equipment by Embodiment 2 of this invention. It is a perspective view which shows a submodule in the vehicle-mounted electrical equipment by Embodiment 2 of this invention. It is a perspective view which shows the plate which mounts a submodule in the vehicle-mounted electrical equipment by Embodiment 2 of this invention.

Embodiment 1 FIG.
Hereinafter, an in-vehicle electric device according to the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are described with the same reference numerals.

Embodiment 1 FIG.
Conventional on-vehicle chargers as on-vehicle electric devices have individually incorporated electrical components such as semiconductor elements, transformers, reactors, and capacitors, but on-vehicle chargers as on-vehicle electric devices according to Embodiment 1 of the present invention are It is configured by combining multiple modules that aggregate electrical parts for each functional element, and each module is electrically connected by connecting the terminals provided in the input / output part of each module with a bus bar. This constitutes the main circuit of the on-vehicle electrical equipment.

  FIG. 1 is a configuration diagram of an in-vehicle electric device according to Embodiment 1 of the present invention. As an example of an in-vehicle electric device, the in-vehicle electric device is mounted on PHEV and EV, and converts AC input power from an AC power source into DC power. 1 shows an in-vehicle charger for charging a high voltage battery. In FIG. 1, an in-vehicle charger 1 includes, as components, a filter unit 2 including a filter circuit including a reactor and a capacitor, an AC / DC conversion unit 3, a boosting capacitor 4, and a DC / DC conversion. Part 5. Each of these components is configured as a single module in which electrical components are aggregated, and the terminals provided in the input / output section of each component module are connected by a bus bar so that the main circuit of the in-vehicle charger 1 Is configured. In addition, you may make it connect the terminal of each module directly by optimizing the terminal of the module of each component.

  The filter unit 2, the AC / DC conversion unit 3, the capacitor 4, and the DC / DC conversion unit 5 configured as the above-described module are mounted on an assembly plate formed in a flat plate shape shown in FIG. And configured as one on-vehicle charger.

  Next, a flow for converting AC power into DC power by the in-vehicle charger 1 and charging the in-vehicle high voltage battery will be described. The AC power input from an external AC power source such as a household AC power source is noise-removed by the filter unit 2, converted to DC power by the AC / DC conversion unit 3, charged in the capacitor 4 and boosted. The DC power charged in the capacitor 4 is output again as DC power boosted from the filter unit 2 through the DC / DC conversion unit 5 to charge the on-vehicle high voltage battery.

  According to the in-vehicle charger as the in-vehicle electric device according to Embodiment 1 of the present invention, the functional elements such as the filter unit 2, the AC / DC conversion unit 3, the capacitor 4, and the DC / DC conversion unit 5 incorporated therein are respectively provided. Since it is configured as a single module, it is not necessary to configure the components inside the in-vehicle charger and the layout of the components different for each vehicle model as in the past, and the combination of functional elements configured as each module It is possible to change the external shape of the in-vehicle charger and the position of the input / output unit by simply changing the arrangement, and the design process and manufacturing process can be greatly reduced.

  In addition, by sharing the module of each functional element so that it can be shared by various types of vehicles, production equipment and tools can be reduced, so that the cost can be reduced. Furthermore, the in-vehicle charger can be reduced in size by electrically connecting the terminals of the modules of the respective functional elements by a bus bar to form a main circuit and mounting the main circuit on the plane of the assembly plate.

Embodiment 2. FIG.
Next, an in-vehicle electric device according to Embodiment 2 of the present invention will be described. FIG. 2 is a configuration diagram of the on-vehicle charger according to the second embodiment of the present invention. As in the case of the first embodiment, as an example of the on-vehicle electric device, the on-vehicle charger is mounted on PHEV and EV, and AC power from an AC power source is shown. 1 shows an in-vehicle charger for converting input power to DC power to charge a high voltage battery. In FIG. 2, an in-vehicle charger 1 includes a filter unit 2 including a filter circuit including a reactor and a capacitor, an AC / DC conversion unit 3, a boosting capacitor 4, a DC / DC conversion unit 5, And an input terminal block module 6. The filter unit 2, the AC / DC conversion unit 3, and the DC / DC conversion unit 5 are each composed of a plurality of submodules subdivided for each functional element, as will be described later. The capacitor 4 is configured by integrally fixing a plurality of electrically connected capacitor elements.

  The filter unit 2 has three types of sub-modules: three filter sub-modules 71, 72, 73, an input filter sub-module 8, and an output filter sub-module 16 that are shared so that they can be used on the input side and the output side. It is divided into The filter submodules 71, 72, and 73 each include a filter circuit including a reactor and a capacitor.

  The AC / DC conversion unit 3 is divided into three types: a primary-side diode submodule 9, two PFC reactors 10, and an ACDC submodule 11. The DC / DC converter 5 is divided into four types: a DCDC sub-module 12, a magnetic component sub-module 13, a secondary-side diode sub-module 14, and a smoothing reactor 15. The magnetic component submodule 13 includes a reactor 131 and a transformer 132.

  As described above, the filter unit 2, the AC / DC conversion unit 3, and the DC / DC conversion unit 5 each divided into a plurality of submodules have a bus bar between terminals provided in the input / output units of each submodule. The main circuit of the in-vehicle charger 1 is configured by being electrically connected by a not-shown). Note that the terminals of each submodule may be directly connected by optimizing the terminals of each submodule so that they can be directly connected to each other.

  FIG. 3 is a main circuit diagram of an in-vehicle charger according to Embodiment 2 of the present invention. In FIG. 3, the primary-side diode submodule 9 includes a bridge circuit composed of four semiconductor diodes. Each of the two PFC reactors 10 includes two reactors connected in parallel. The ACDC sub-module 11 includes two semiconductor diodes connected to each reactor of one PFC reactor 10, two semiconductor diodes connected to each reactor of the other PFC reactor, and between the semiconductor diodes. Two semiconductor switching elements are connected.

  The DCDC submodule 12 includes four semiconductor switching elements that form a bridge circuit. The magnetic component submodule 13 includes a reactor 131 and a transformer 132. The secondary diode submodule 14 has the same configuration as the primary diode submodule 9 and includes a bridge circuit including four semiconductor diodes. The smoothing reactor 15 includes one reactor connected to both terminals of the secondary diode submodule 14.

  Next, a flow in which AC power is converted into DC power by the in-vehicle charger 1 and the in-vehicle high voltage battery 40 is charged will be described. In FIG. 2 and FIG. 3, noise is removed from the AC power input from the household AC power source to the input terminal block module 6 by the filter submodules 71 and 72, and the AC power is input via the input filter submodule 8. It is input to the primary side diode submodule 9 in the DC converter 3 and output as DC power from the ACDC submodule 11 via the PFC reactor 10.

  The DC power output from the ACDC submodule 11 is boosted by the boosting capacitor 4, supplied to the magnetic component submodule 13 through the DCDC submodule 12, and AC power is supplied by the transformer incorporated in the magnetic component submodule 13. Is converted to The AC power output from the magnetic component sub-module 13 is input to the secondary diode sub-module 14 and converted to DC power, and further smoothed by the smoothing reactor 15, and the filter sub-module 73 in the filter unit 2 is converted into the DC power. And output from the output filter submodule 16 as boosted DC power. The on-vehicle high voltage battery 40 is charged with the DC power output from the output filter submodule 16.

  Next, each of the above-described submodules constituting the in-vehicle charger 1 according to Embodiment 2 of the present invention will be described. FIG. 4 is a perspective view showing a submodule in the in-vehicle charger according to Embodiment 2 of the present invention, where (a) shows the input filter submodule 8 and (b) shows the primary side diode submodule. 9 and the secondary diode submodule 14, (c) shows the ACDC submodule, (d) shows the DCDC submodule, and (e) shows the magnetic component submodule.

  The filter submodules 71, 72, 73, the input filter submodule 8 and the output filter submodule 16 shown in FIG. 2 and FIG. 3 described above are terminals arranged in three dimensions and provided in each electric component. Thus, the electrical components are electrically connected to each other, and the terminals and the electrical components are integrally held by the resin holder.

  Next, the input filter submodule 8 will be described as an example. As shown in FIG. 4A, the input filter submodule 8 includes an X capacitor (film capacitor) 17, a varistor 18, two terminals 191 and 192, and a resin holder 20. The X capacitor 17 is joined by welding or soldering to holes 19 (h) formed in the terminals 191 and 192, respectively.

  The varistor 18 is joined to the protrusions 19 (p) of the terminals 191 and 192 by welding or soldering. The X capacitor 17, the varistor 18, and the terminals 191 and 192 joined in this way are inserted or outsertd and held in the resin holder 20. The filter submodules 71, 72, 73 and the output filter submodule 16 that are shared so that they can be used on the input side and the output side are also configured in the same manner as the input filter submodule 8.

  As shown in FIG. 4B, the primary side diode submodule 9 and the secondary side diode submodule 14 have a plurality of semiconductor elements (not shown) and terminals on a metal substrate 22 covered with a resin holder 21. 23 is mounted, and each semiconductor element and between the semiconductor element and the terminal 23 are electrically connected. The primary side diode submodule 9 and the secondary side diode submodule 14 are configured such that the resin holder 21 and the terminal 23 are shared, and the size and specifications of the metal substrate 22 are also shared.

  As shown in FIG. 4C, the ACDC submodule 11 mounts a plurality of semiconductor elements (not shown) and terminals 23 on a metal substrate 22 covered with a resin holder 21, and between each semiconductor element, Each semiconductor element and the terminal 23 are electrically connected. As shown in FIG. 4D, the DCDC submodule 12 mounts a plurality of semiconductor elements (not shown) and terminals 23 on a metal substrate 22 covered with a resin holder 21, and between each semiconductor element, Each semiconductor element and the terminal 23 are electrically connected. As shown in FIGS. 4C and 4D, between the ACDC submodule 11 and the DCDC submodule 12, the position of the terminal 23 of the resin holder 21 is changed to be optimized for each submodule. The shape of the terminal 23 is made common, and the size and specification of the metal substrate 24 and the size of the resin holder 21 are made common.

  The magnetic component submodule 13 is laminated with a flat metal plate 26 and a pattern (not shown) formed on the surface of the metal substrate 26 as shown in FIG. And a magnetic member 271 made of a ferrite core disposed so as to penetrate and surround the inside of the reactor winding, and a surface of the metal substrate 26. A transformer winding composed of a primary winding and a secondary winding formed by a formed pattern (not shown) and a plurality of laminated thin metal plates 252; a primary winding and a secondary winding of the transformer winding And a magnetic member 272 made of a ferrite core for magnetically coupling the windings.

  A reactor is configured by the metal thin plate 251, the magnetic member 271, and a pattern (not shown) formed on the metal substrate 26, and a pattern (not shown) formed on the metal thin plate 252, the magnetic member 272, and the metal substrate 26. ) And a transformer.

  Filter sub-modules 71, 72, 73 configured as described above, input filter sub-module 8, primary side diode sub-module 9, PFC reactor 10, ACDC sub-module 11, capacitor 4, DCDC sub-module 12, magnetic components The sub-module 13, the secondary diode sub-module 14, the smoothing reactor 15, and the output filter sub-module 16 are connected with terminals 191, 192, 23, etc. of each sub-module by bus bars (not shown). The main circuit of the vehicle-mounted charger 1 shown in FIG. 3 is comprised. Note that the terminals of each submodule may be directly connected by optimizing the terminals of each submodule so that they can be directly connected to each other.

  FIG. 5 is a perspective view showing an assembly plate on which a submodule is mounted in an in-vehicle charger according to Embodiment 2 of the present invention. The above-described submodules and other components constituting the main circuit of the on-vehicle charger shown in FIG. 3 are mounted on a plane 29 of the assembly plate 28 having the refrigerant flow path 30 shown in FIG. In addition, heat generated in other components such as the capacitor 4 is transmitted from the lower surface thereof to the refrigerant in the refrigerant flow path 30 via the assembly plate 28 and is radiated to the outside.

  As described above, according to the in-vehicle charger as the in-vehicle electric device according to the second embodiment of the present invention, the electrical components such as the semiconductor element, the transformer, the reactor, and the capacitor incorporated in the in-vehicle charger are arranged for each functional element. Because it is formed as a sub-module, there is no need to redesign the parts inside the equipment and the parts layout from the beginning for each mounted vehicle type as in the past, in response to a request to change the external shape of the in-vehicle charger. By simply changing the combination and arrangement of the submodules, it is possible to change the external shape and the input / output position, so that the number of design processes can be greatly reduced. In combination with the effect of reducing the number of design steps in this way, production equipment and tools can be reduced by sharing and sharing each submodule, so that the cost of the on-vehicle charger can be reduced.

  Also, the electrical components in each submodule are arranged in three dimensions, and the terminals of each submodule are electrically connected by a bus bar to form a main circuit. These submodules are mounted on the plane of the assembly plate. By doing so, it is possible to reduce the size of the in-vehicle charger as the in-vehicle electric device.

  Furthermore, a semiconductor element and a terminal are mounted on a metal substrate, and the semiconductor element and the terminal are connected to form a submodule. A metal thin plate and a terminal are mounted on the metal substrate, and the pattern and metal formed on the metal substrate. A sub-module having a transformer and a reactor formed by forming a winding with a thin plate and arranging magnetic parts consisting of a ferrite core so as to pass through this winding is assembled from the pattern formed on the metal substrate. It becomes possible to radiate heat directly to the plate, and the on-vehicle charger can be miniaturized with the effect of improving heat dissipation.

  In the first and second embodiments of the present invention described above, the in-vehicle charger as the in-vehicle electric device has been described. However, the present invention is not limited to the in-vehicle charger, and a high voltage mounted on PHEV, EV, or the like. DC / DC converter for stepping down from battery voltage to voltage of 12 [V] low voltage battery, DC / DC converter for stepping up voltage from low voltage battery of 12 [V] system to high voltage battery, or electric motor Of course, the present invention can also be applied to a power conversion device such as an inverter for driving the inverter.

  In the present invention, within the scope of the invention, the respective embodiments can be appropriately combined, modified or omitted.

DESCRIPTION OF SYMBOLS 1 In-vehicle charger, 2 Filter part, 3 AC / DC conversion part, 4 Capacitor, 5 DC / DC conversion part, 6 Input terminal block module, 71, 72, 73 Filter submodule, 8 Input filter submodule, 9 Primary side Diode submodule, 10 PFC reactor, 11 ACDC submodule, 12 DCDC submodule, 13 Magnetic component submodule, 14 Secondary diode submodule, 15 Smoothing reactor, 16 Output filter submodule, 17 X capacitor (film capacitor), 18 Varistor, 191, 192, 23 Terminal, 19 (h) Hole, 20, 21 Resin holder, 22, 24, 26 Metal substrate, 131, 131 Reactor, 132 Transformer, 251, 252 Metal thin plate, 271, 272 Magnetic Wood, 28 assembled plates, 29 flat, 30 refrigerant flow path, 40 a high-voltage battery

The in-vehicle electric device according to the present invention is
An in-vehicle electric device that is mounted on a vehicle having at least one of a motor as a drive source and includes a main circuit that performs a predetermined operation,
The plurality of electrical components in the main circuit are each composed of a plurality of submodules divided into functional elements,
Connection means electrically connected to the plurality of sub-modules;
An assembly plate on which the plurality of submodules and the connection means are installed;
The main circuit is:
It is a main circuit of an in-vehicle charger configured to be cooled by the assembly plate while being configured by at least the plurality of submodules and the connection means,
The plurality of electrical components are:
A filter unit including a filter circuit; an AC / DC converter that converts AC power from the filter unit into DC power; and DC power obtained by boosting DC power output from the AC / DC converter through a capacitor A DC / DC converter for converting into
AC power input to the filter circuit from the outside is converted into DC power by the AC / DC converter,
DC power output from the AC / DC converter through the capacitor is converted into DC power boosted by the DC / DC converter,
The DC power boosted by the DC / DC conversion unit is output to the outside through the filter unit,
The filter unit is
It is divided into a plurality of common filter submodules, input filter submodules, and output filter submodules.
The AC power input from the outside is input from the input filter submodule to the AC / DC converter through the filter submodule connected at least two,
DC power output from the DC / DC converter is input to the filter submodule other than the at least two connected filter submodules, and output to the outside from the output filter submodule.
It is characterized by that.

According to the in-vehicle electric device according to the present invention, the plurality of electrical components in the main circuit are configured by a plurality of submodules divided for each functional element, and the plurality of submodules are electrically connected. Connecting means connected to each other, the plurality of submodules, and an assembly plate on which the connecting means is installed, and the main circuit is composed of at least the plurality of submodules and the connecting means. In addition, since it is configured to be cooled by the assembly plate, it is possible to easily and finely meet vehicle mounting requirements, and thus to obtain an in-vehicle electric device that can be reduced in size and cost. it can.

Next, the input filter submodule 8 will be described as an example. (A) of FIG.
As shown in FIG. 2, the input filter submodule 8 includes an X capacitor (film capacitor) 1
7, a varistor 18, two terminals 19 and 192, and a resin holder 20. The X capacitor 17 is joined to the holes 19 (h) formed in the terminals 19 and 192 by welding or soldering.

The varistor 18 is joined to the projecting portions 19 (p) of the terminals 19 and 192 by welding or soldering. The X capacitor 17, the varistor 18, and the terminals 19 and 192 joined in this way are inserted or outsertd and held in the resin holder 20. The filter submodules 71, 72, 73 and the output filter submodule 16 that are shared so that they can be used on the input side and the output side are also configured in the same manner as the input filter submodule 8.

Filter sub-modules 71, 72, 73 configured as described above, input filter sub-module 8, primary side diode sub-module 9, PFC reactor 10, ACDC sub-module 11, capacitor 4, DCDC sub-module 12, magnetic components The sub-module 13, the secondary diode sub-module 14, the smoothing reactor 15, and the output filter sub-module 16 are connected between terminals 19 , 192, 23, etc. of each sub-module with a bus bar (not shown), The main circuit of the vehicle-mounted charger 1 shown in FIG. 3 is comprised. Note that the terminals of each submodule may be directly connected by optimizing the terminals of each submodule so that they can be directly connected to each other.

DESCRIPTION OF SYMBOLS 1 In-vehicle charger, 2 Filter part, 3 AC / DC conversion part, 4 Capacitor, 5 DC / DC conversion part, 6 Input terminal block module, 71, 72, 73 Filter submodule, 8 Input filter submodule, 9 Primary side Diode submodule, 10 PFC reactor, 11 ACDC submodule, 12 DCDC submodule, 13 Magnetic component submodule, 14 Secondary diode submodule, 15 Smoothing reactor, 16 Output filter submodule, 17 X capacitor (film capacitor), 18 varistor, 19 , 192, 23 terminal, 19 (h) hole, 20, 21 resin holder, 22, 24, 26 metal substrate, 131, 131 reactor, 132 transformer, 251, 252 thin metal plate, 271, 272 magnetic member , 28 assembly pre , 29 plane, 30 refrigerant flow path, 40 high voltage battery

Claims (16)

An in-vehicle electric device that is mounted on a vehicle having at least one of a motor as a drive source and includes a main circuit that performs a predetermined operation,
A plurality of modules divided into a plurality of electrical components of the main circuit;
Connection means electrically connected to the plurality of modules;
An assembly plate on which the plurality of modules and the connection means are installed;
With
The main circuit is composed of at least the plurality of modules and the connection means and is cooled by the assembly plate.
In-vehicle electrical equipment characterized by this. The connection means is pre-installed in the module;
The in-vehicle electric device according to claim 1 characterized by things. The plurality of modules are electrically connected to each other when the connection means connected to the respective modules is connected by a bus bar.
The in-vehicle electric device according to claim 1 or 2, characterized in that. The assembly plate can be said to be provided with a refrigerant flow path through which the refrigerant flows.
The in-vehicle electric device according to any one of claims 1 to 3 characterized by things. The main circuit is a main circuit of an in-vehicle charger,
The plurality of electrical components include a filter unit including a filter circuit, an AC / DC conversion unit that converts AC power from the filter unit into DC power, and a capacitor from the AC / DC conversion unit via a capacitor. A DC / DC converter that converts the output DC power into boosted DC power,
AC power input to the filter circuit from the outside is converted into DC power by the AC / DC converter,
DC power output from the AC / DC power converter through the capacitor is converted into DC power boosted by the DC / DC converter,
DC power boosted by the DC / DC converter is output to the outside through the filter.
The in-vehicle electric device according to any one of claims 1 to 4 characterized by things. An in-vehicle electric device that is mounted on a vehicle having at least one of a motor as a drive source and includes a main circuit that performs a predetermined operation,
The plurality of electrical components in the main circuit are each composed of a plurality of submodules divided into functional elements,
Connection means electrically connected to the plurality of sub-modules;
An assembly plate on which the plurality of submodules and the connection means are installed;
With
The main circuit is composed of at least the plurality of submodules and the connection means and is cooled by the assembly plate.
In-vehicle electrical equipment characterized by this. The connection means is pre-installed in the submodule.
The in-vehicle electric device according to claim 6 characterized by things. The plurality of submodules are electrically connected to each other from 15 in that the connection means connected to each of the submodules is connected by a bus bar.
The in-vehicle electric device according to claim 6 or 7 characterized by things. The assembly plate can be said to be provided with a refrigerant flow path through which the refrigerant flows.
The in-vehicle electric device according to any one of claims 6 to 8, wherein At least one of the plurality of submodules is
A plurality of three-dimensionally arranged electrical components;
A terminal connected to the electrical component;
A resin holder for holding the electrical component and the terminal;
The in-vehicle electric device according to any one of claims 6 to 9, characterized by things. At least one of the plurality of submodules is
A metal substrate;
A semiconductor element mounted on the metal substrate;
A terminal mounted on the metal substrate and connected to the semiconductor element;
A resin holder fixed to the metal substrate and holding the semiconductor element and the terminal;
With
The in-vehicle electric device according to any one of claims 6 to 9, characterized by things. The main circuit is a main circuit of an in-vehicle charger,
The plurality of electrical components include a filter unit including a filter circuit, an AC / DC conversion unit that converts AC power from the filter unit into DC power, and a capacitor from the AC / DC conversion unit via a capacitor. A DC / DC converter that converts the output DC power into boosted DC power,
AC power input to the filter circuit from the outside is converted into DC power by the AC / DC converter,
DC power output from the AC / DC power converter through the capacitor is converted into DC power boosted by the DC / DC converter,
DC power boosted by the DC / DC converter is output to the outside through the filter.
The in-vehicle electric device according to any one of claims 6 to 11, wherein The filter unit is divided into a plurality of common filter submodules, an input filter submodule, and an output filter submodule,
The AC power input from the outside is input from the output filter submodule to the AC / DC converter through the filter submodule connected at least two,
DC power output from the DC / DC converter is input to the filter submodule other than the two connected filter submodules, and is output to the outside from the output filter submodule.
The in-vehicle electric device according to claim 12 characterized by things. The AC / DC converter is divided into at least a primary diode submodule, a reactor, and an ACDC submodule.
The in-vehicle electric device according to claim 12 characterized by things. The DC / DC converter is divided into at least a DCDC submodule, a magnetic component submodule, a secondary diode submodule, and a reactor.
The in-vehicle electric device according to claim 12 characterized by things. The magnetic component sub-module includes a metal substrate, a transformer fixed to the metal substrate, and a reactor fixed to the metal substrate.
The transformer and the reactor each include a winding formed of a thin metal plate fixed to the metal substrate and a pattern formed on the metal substrate, and a magnetic member magnetically coupled to the winding. Have
The in-vehicle electric device according to claim 15 characterized by things.

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