DE102009044240A1 - Electric power converter for, e.g. generator motor for motor vehicle e.g. passenger car, has low side MOSFETs and high side MOSFETs that are mounted on main surface of substrate, where substrate is made of aluminum material - Google Patents

Electric power converter for, e.g. generator motor for motor vehicle e.g. passenger car, has low side MOSFETs and high side MOSFETs that are mounted on main surface of substrate, where substrate is made of aluminum material

Info

Publication number
DE102009044240A1
DE102009044240A1 DE102009044240A DE102009044240A DE102009044240A1 DE 102009044240 A1 DE102009044240 A1 DE 102009044240A1 DE 102009044240 A DE102009044240 A DE 102009044240A DE 102009044240 A DE102009044240 A DE 102009044240A DE 102009044240 A1 DE102009044240 A1 DE 102009044240A1
Authority
DE
Germany
Prior art keywords
power converter
switching elements
electric power
side switching
potential side
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE102009044240A
Other languages
German (de)
Inventor
Kazuteru Kariya-shi Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
Denso Corp
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
Priority to JP2008266965A priority Critical patent/JP2010098831A/en
Priority to JP2008-266965 priority
Priority to JP2008-279351 priority
Priority to JP2008279351A priority patent/JP5083665B2/en
Application filed by Denso Corp filed Critical Denso Corp
Publication of DE102009044240A1 publication Critical patent/DE102009044240A1/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/046Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification in generators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30Structural association with control circuits or drive circuits
    • H02K11/33Drive circuits, e.g. power electronics
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003Constructional details, e.g. physical layout, assembly, wiring, busbar connections

Abstract

In an engine generator for vehicles, an electric power converter (1) is connected to an armature. The converter (1) has a bridge circuit formed of six high-potential-side switching elements (3b, 3d, 3f, 3h, 3j and 3m) and six low-potential side switching elements (3a, 3c, 3e, 3g, 3i and 3k) which are mounted on one the same main surface of a metallic base plate (5) are formed. A motor generator for vehicles has a front housing frame part and a rear housing part in which a stator, a rotor and an electric power converter are arranged. A concave part is formed on an outer end surface with respect to the axial direction of the rear housing frame part and formed in the geometric shape similar to the electric power converter. The electric power converter is housed in the concave part of the rear housing frame part (102) and sealed with a temperature-resistant silicone resin.

Description

  • BACKGROUND OF THE INVENTION
  • 1. Field of the invention
  • The The present invention relates to an electric power converter for use with a rotary electric machine and a rotary electric machine, for example a Motor generator for vehicles, which with an electric Power converter is equipped.
  • 2. Description of the associated State of the art
  • Around Measures of fuel consumption control and emissions control to take to the amount of carbon dioxide in the earth's atmosphere given the recent environmental problems, for example global warming, and to alleviate the problem the high oil price due to global economic growth to solve, increasingly find different types of vehicles distribution, which are equipped with an idling reduction device, to reduce idling. This idle reduction device temporarily suspends the engine of a vehicle when this is on a traffic light is waiting.
  • Around to obtain such an idling reduction function, it is necessary that on the vehicle, a rotating electric machine, for example a motor generator is installed, namely an ISG machine (integrated starter / generator) and a machine gun (motor generator), the machine having two functions, namely a power generator function and a starter function. The starter motor is capable of the Machine with internal combustion of a vehicle after a temporary Restarting to restart a traffic light.
  • A rotating electrical machine, which is such Leerlaufverminderung performs a starter motor function with starting torque characteristics have to re-soft the internal combustion engine Start, and must have high efficiency and high output power while driving a vehicle under large have electrical load, even if the vehicle with many electronic equipment is equipped. additionally the recent development urgently requires miniaturization the rotating electric machine for assembly a rotating electrical machine with a converter or Inverter to the size of the rotating electrical To reduce the machine.
  • It are ISG and MG machines available, which is the idle reduction for a vehicle. On the technical Areas of ISG and MG machines is a well-known structure as one of the techniques for assembling a main body a rotating electrical machine and an electric power converter, wherein a group of the switching elements on the high potential side and the other group of switching elements on the low potential side provided separately in the electrical power converter (or arranged) and attached to the rotating electric machine are.
  • For example, Japanese Patent Laid-Open Publication Nos. JP 2007-49840 (see pages 3-6, 1 - 4 ), No. JP 2007-49841 (see pages 3-6, 1 - 4 ), Number JP 2007-166857 (see pages 4-14, 1 - 19 ) Various types of rotary electric machine, which have such a structure.
  • The above construction of the separation of the high potential side switching elements and the switching elements of the low potential side in an electrical Power converter has wide use in a vehicle generator due to the easy electrical handling of the high potential side Switching elements and the low-potential side switching elements. The high potential side switching elements and the low potential side switching elements have different electrical reference potential if they have one Form three-phase bridge circuit.
  • As disclosed in the two Japanese Patent Laid-Open Publication Nos. JP 2007-49840 and no. JP 2007-49841 is carried out, a temperature difference between the high-potential-side switching elements and the low-potential side switching elements easily arises due to the amount of heat released when said switching element groups are formed separately.
  • in the Ideally, it is preferable that the high potential side switching elements and the low potential side switching elements under the same temperature condition work, namely to have the same temperature. However, since the group of high-potential-side switching elements is not electrically is fixed or floating, it is impossible the high potential side Switching elements directly to the main body and the cooling fins to connect to the rotating machine. This diminishes the cooling function for cooling the high potential side Switching elements based on the heat conduction. This makes difficult, the high potential side switching elements and the low potential side Cooling switching elements uniformly.
  • The temperature difference between the Switching element groups can cause an imbalance of current flow between these groups, and this can exceed the absolute allowable values for each of the high potential side switching elements if they are not cooled sufficiently.
  • additionally makes the construction of a separate assembly of the high potential side switching element group and the low potential side switching element group, a terminal plate for attachment and connection of these groups with each other, as well long connecting wires using a busbar necessary. This requires a complicated design and power it is difficult to change the size of the rotating electrical Machine, namely the rotating electrical machine to miniaturize.
  • In the construction disclosed in Japanese Laid-Open Patent Publication No. Hei. JP 2007-166857 is disclosed, furthermore, an electric power converter is disposed in a plane, but a high potential side switching element group and a low potential side switching element group are separated and assembled from each other. This requires a complicated construction because it is necessary to arrange wirings on a terminal board and provide a bus bar.
  • additionally There are ISG and MG machines that are capable of idling reduction for to carry a vehicle. In the technical fields The ISG and MG machines is considered one of the assembly techniques a rotating electric machine and an electric power converter a structure is known in which a group of high potential side Switching elements and the other group of low potential side switching elements are arranged separately in the electric power converter and attached to the rotary electric machine.
  • In addition, Japanese Patent Laid-Open Publication Nos. JP 2007-49840 , No. JP 2007-49841 and no. JP-2007-166857 Various types of rotary electric machines such as ISG and MG machines with the idle-down function are disclosed in which an electric power converter is disposed at a rear side of the main body of the rotary electric machine and the main body of the rotary electric machine and the electric power converter are assembled.
  • In the electric power converter, which is a single layer or two layers that are along the axial direction the conventional rotary electric machine arranged are n-channel semiconductor elements in a package lower Size directly with a discharge plate or Cooling fins while maintaining the isolation of one Ground potential connected using a dispensing sheet. There such n-channel semiconductor elements connected in the above manner exposed to the atmosphere, rust, dust and Water, in particular salt water, in the exposed semiconductor elements in the electric power converter, which at the rotating electrical Machine is grown and this easily leads to short circuits. As a result, the electric power converter causes operation Error and the rotating electric machine falls through it out. In conventional rotating electrical machines, For example, a motor generator, it is difficult to its function to maintain under harsh environmental conditions.
  • SUMMARY OF THE INVENTION
  • It It is an object of the present invention to provide an electrical power converter a rotating electrical machine, such as a motor generator for a vehicle with a simple body and lower To create size whereby it is possible a uniform cooling of the components, for example the high potential side switching elements and the low potential side switching elements to reach. It is another object of the present invention a rotating electrical machine, for example a motor generator which is equipped with an electric power converter is, taking their functions under harsh environmental conditions can be maintained.
  • To achieve the above objects, the present invention provides an electric power converter 1 , which with a rotating electric machine 11 to be assembled for vehicles. The electrical power converter 1 is with an armature of the rotating electric machine 11 connected.
  • The electrical power converter 1 consists of a bridge circuit and a metallic base plate 5 , The bridge circuit consists of a number of high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m , and a number of low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k , The metallic base plate 5 is made of a single material, such as aluminum material. Specifically, both the number of high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m as well as the number of low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k on a main surface of the metallic base plate 5 arranged or placed on this surface. In the following discussion, the word "arrange" has the Be a "settling" or "arranging" of one or more components without limitation.
  • Arranging both the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m as well as the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k on one and the same main surface of the metallic base plate 5 allows the function of effective cooling of the electric power converter 1 to improve, in particular the high-potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m and also the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k to uniformly cool, namely, as compared with a construction of a conventional electric power converter in which a group of high potential side switching elements and a group of low potential side switching elements are arranged on different areas, for example in two stages. The construction of the electric power converter 1 According to the present invention, an imbalance can prevent the generation of induced currents in the motor generator, and can further prevent the current flowing in the high-potential side switching element from exceeding the absolute limit because the switching element is not sufficiently cooled. There continue to be the various components of the electric power converter 1 on the same surface of the single metallic base plate 5 are arranged, it makes this construction possible, an electric power converter 1 small size and thickness produce. The design can be the total number of manufacturing steps for a rotating electrical machine, which with the electric power converter 1 equipped, and can thereby reduce the production cost of the electric power converter.
  • It is preferable that the metallic base plate 5 made of aluminum material. The use of aluminum material reduces the overall weight of the electric power converter 1 and realizes high thermal conductivity and high thermal radiation.
  • Preferred dimensions are each of the number of high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m and each of the plurality of low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k an n-channel metal oxide semiconductor field effect transistor (n-channel MOSFET). This construction reduces power loss and suppresses an increase in the amount of heat generated from the electric power amount.
  • Preferably, the n-channel MOSFET is a multi-purpose packaging element in which the conductor terminals are arranged in the order of gate, drain and source. This may be the manufacturing cost of the electrical power converter 1 Reduce.
  • Further, it is preferable that a number of lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f on the main surface of the metallic base plate 5 are arranged to connect with a number of conductor wires of the armature. The plurality of lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f is at the outer circumferential part of the main surface of the metal base plate 5 arranged. The direction of each of the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m and the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k which are on the main surface of the metallic base plate 5 are attached is set so that it is possible, the lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f on the outer peripheral part of the main surface of the metal base plate 5 to arrange. This construction makes it possible to easily connect each of the lead wire connection terminals to the corresponding output wire of the armature. In particular, this construction enables easy connection work upon completion of the assembly of the electric power converter 1 with the motor generator 11 , Further, it is preferable that the conductor terminal connection parts 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m on the main surface of the metallic base plate 5 are arranged. About each of the piping connection parts 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m a control signal is supplied to the corresponding high potential side switching element and the corresponding low potential side switching element to the ON / OFF operation of the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m and the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k perform.
  • Specifically, it is preferable that the lead terminal connecting parts 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m on the outer circumference of the main surface of the metal base plate 5 are located.
  • Further, it is preferable that the direction of each of the high potential side switching elements 3b . 3d . 3f . 3h . 3y . 3m and the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k which are on the main surface of the metallic base plate 5 are provided is set so that it is possible, the line connection connecting parts 10a . 10b . 10c . 10d . 10e . 10f . 10h . 10i . 10j . 10k . 10m on the outer peripheral part of the main surface of the metal base plate 5 to arrange. This construction makes it possible to easily connect each of the lead terminal connecting parts to the signal line bind, which from the controller 16 emanates. The control device 16 generates and transmits a control signal to each of the line terminal connection parts.
  • In addition, it is preferable that an output terminal 2a and an output lead via which the number of low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k with the output connector 2a is connected on the main surface of the metallic base plate 5 are arranged. In particular, it is preferable that the output terminal 2a and the output terminal wire on an inner circumferential part of the main surface of the metal base plate 5 are located. In addition, it is preferable that the direction of each of the high-potential-side switching element parts 3b . 3d . 3f . 3h . 3y . 3m and the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k which are on the main surface of the metallic base plate 5 are formed so that it is possible to connect the output terminal 2a and the output terminal wire at the inner peripheral part of the main surface of the metal base plate 5 to arrange. This construction makes it possible to connect the wirings of the output terminal side to the inner peripheral part of the metal base plate 5 and thereby easily introduce these wirings to the controller 16 and the main body of the motor generator 11 to connect for vehicles.
  • Furthermore, it is preferable that the wirings of the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m and the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k which form the bridge circuit, a single-layer wiring pattern on the main surface of the metal base plate 5 form. The use of such a single-layer wiring pattern avoids any heat storage space caused by the wiring layer and can reduce the cooling ability on the metal base plate 5 increase. In addition, since the thickness of the wiring pattern on the metallic base plate 5 is increased and thereby the power consumption is increased, possible, the electric power converter 1 as a device of greater electrical power while reducing heat generation.
  • Further, it is preferable that the packing of each of the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m and the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k on the main surface of the metallic base plate 5 is fixed by soldering. This makes it possible to facilitate the fixing work for fixing each switching element to the metal base plate 5 ,
  • Moreover, it is preferable that each of the lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f is arranged separately from the other terminals along the circumferential direction. This construction makes it possible to easily maintain the working space for connecting said lead wire connection terminals. This increases the work efficiency in connecting the lead wire connection terminals to the other wires and terminals.
  • According to another aspect of the present invention, there is provided a rotary electric machine for vehicles. The rotating electric machine 100 contains a rotor 104 , a stator 103 , a housing frame from a front frame part 101 and a rear frame part 102 as well as cooling fins 106 , The rotor 104 is with a field winding 141 equipped to field magnetic poles 142 . 143 to magnetize. The stator 103 has a stator core 131 , which with a stator winding 132 is provided and the rotor 104 faces. The Gehäuserah men is designed so that it the rotor 104 and the stator 103 supported. The electrical power converter 105 is with the stator winding 132 connected. The electrical power converter 105 is designed to be one in the stator winding 132 induced AC power into a direct current and / or converts a DC power, which is stored in a battery, into an alternating current and the converted alternating current to the stator winding 132 supplies. The cooling fins 106 are at an upper part of the electrical power converter 105 arranged and cool the electric power converter 105 , In the rotating electric machine 100 consists of the housing frame from the front frame part 101 that is on the side of one on the rotor 104 attached pulley 110 located and the rear frame part 102 , which is located on the opposite side from the side of the pulley 110 located. A concave part 121 is at an outer end face in the axial direction of the rear frame part 102 educated. The concave part 121 is geometrically similar in shape to the electrical power converter 105 , In detail, the in the concave part 121 used electrical power converters 105 through a sealing resin 124 sealed. It is preferable that the sealing resin 124 with which the electric power converter 105 is a heat-resistant silicone resin.
  • Because the entire electric power converter 105 through the sealing resin 124 is sealed, this construction effectively prevents the penetration of water, in particular salt water and dust in the interior of the semiconductor elements, such as the switching elements in the bridge circuit in the electric power converter 105 , This avoids the generation of short circuits between the electrodes of the semiconductor elements and erroneous operation of the electric power converter 105 , It is therefore possible the function of the electric power converter 105 for a long period of time, even if the motor generator 100 as a rotating electrical machine connected to the electric power converter 105 equipped, working under difficult conditions. Because the cooling fins on the electric power converter 105 are formed, it is possible to use the electric power converter 105 which is in the sealing resin 124 included is to cool effectively.
  • Furthermore, it is preferable that each of the cooling fins 106 on the upper surface of each of the switching elements 153a . 153b . 153c . 153d . 153e . 153f . 153g . 153h . 153i . 153j . 153k and 153m in the electric power converter 105 is arranged. This design allows the cooling function of the electric power converter 105 to improve.
  • Furthermore, it is preferable that a cooling mechanism on the inner surface in the axial direction of the rear housing frame part 102 is formed. The cooling mechanism has a number of rib-shaped parts 123 , Each of the rib-shaped parts 123 corresponds in the shape of a respective one of the cooling fins 106 , In particular, it is preferred that a brush arrangement 107 in the axial direction on the other side of the rear housing frame part 102 is arranged to accommodate a brush, via which a current to the field winding 141 is delivered. One between the cooling fins 106 formed space, a space on the outer peripheral side of the brush assembly 107 and a space between the rib-shaped parts 123 , which form the cooling mechanism, communicate with each other and form a cooling air passage. This construction allows the cooling fins 106 and the rear body frame part 102 effective both sides with respect to the axial direction of the electric power converter 105 cool, which through the sealing resin 124 is included. It is therefore possible to perform the function of cooling the electric power converter 105 continue to improve.
  • Furthermore, preferably the rear frame part 102 a number of openings 122 over which a number of lead wires of the stator winding 132 with the electric power converter 105 connected is. The presence of these openings 122 prevents the lead wires from short-circuiting, and further improves the function of maintaining the operation of the electric power converter 105 for a long period of time, even if the motor generator as the rotary electric machine, which with the electric power converter 105 equipped, working under difficult conditions.
  • Furthermore, preferably a wall height of the concave part 121 higher than a surface of the sealing resin 124 with which the electric power converter 105 is covered. This construction allows the use and implementation of pouring of the sealing resin in the manufacturing process 124 to cover the electrical power converter 105 with the sealing resin 124 , This can increase the work efficiency in the manufacture of the motor generator 100 increase, which with the electric power converter 105 is equipped.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • A preferred, not to be understood in a limiting sense Embodiment of the present invention will be below for example, with reference to the accompanying drawings described. These are:
  • 1 a perspective view of an electric power converter in a motor generator as a rotary electric machine for vehicles according to a first embodiment of the present invention;
  • 2 another perspective view of the electric power converter in the motor generator according to the first embodiment of the present invention;
  • 3A and 3B Front views of the electric power converter in the motor generator according to the first embodiment of the present invention;
  • 4A a rear view of the electric power converter in the motor generator according to the first embodiment of the present invention;
  • 4B a view of the electric power converter in the motor generator according to the first embodiment of the present invention;
  • 5 11 is a view showing a wiring pattern formed on a main surface of a metallic base plate of the electric power converter in the motor generator according to the first embodiment of the present invention;
  • 6 4 is a front view showing a part of the wiring of the switching elements in the electric power converter in the motor generator according to the first embodiment of the present invention shows;
  • 7 a view showing an example of the attachment of the electric power converter to the motor generator according to the first embodiment of the present invention;
  • 8th a perspective view showing the electric power converter according to 7 in assembly with the motor generator shows;
  • 9 a view showing a wiring pattern for electrically connecting the components of the motor generator according to the first embodiment of the present invention;
  • 10 a view showing an overall structure of a motor generator as a rotary electric machine for vehicles according to a second embodiment of the present invention;
  • 11 a view showing a concrete example of an electric power converter in the motor generator according to the second embodiment of the present invention;
  • 12 a view showing a wiring pattern for electrically connecting the components in the motor generator according to the second embodiment of the present invention;
  • 13 a perspective view showing the electric power converter, which is fixed to a rear housing frame part of the motor generator according to the second embodiment of the present invention;
  • 14 a plan view illustrating the rear housing frame part of the motor generator according to the second embodiment of the present invention;
  • 15 a perspective view showing the shape of an outer end face of the rear housing frame part along the axial direction of the motor generator according to the second embodiment of the invention;
  • 16 a view illustrating a rear side of the rear housing frame part of the motor generator according to the second embodiment of the present invention;
  • 17 a perspective view showing the shape of the inner end surface of the rear housing frame part with respect to the axial direction of the motor generator according to the second embodiment of the present invention; and
  • 18 12 is a perspective view of the motor generator to be understood with the finned electric power converter according to the second embodiment of the present invention.
  • DETAILED DESCRIPTION THE PREFERRED EMBODIMENTS
  • following Be different embodiments of the present Invention with reference to the accompanying drawings. In the following description of the various embodiments like reference symbols or reference numerals denote the same or corresponding components in all different ones Illustrations.
  • First embodiment
  • With reference to the 1 to 9 Now follows a description of a motor generator as a rotary electric machine according to a first embodiment, which is equipped with an electric power converter.
  • 1 is a perspective view of the electric power converter 1 in a motor generator 11 as a rotary electric machine for vehicles according to a first embodiment of the present invention. 2 is another perspective view of the electrical power converter 1 in the motor generator 11 according to the first embodiment. The 3A and 3B are front views of the electric power converter 1 in the motor generator 11 according to the first embodiment. 4A is a rear view of the electric power converter 1 in the motor generator according to the first embodiment. 4B is a view of the electric power converter 1 in the motor generator according to the first embodiment.
  • The electrical power converter 1 includes an output port 2a , an output busbar 2 B , a number of low potential side switching elements, a number of high potential side switching elements, a number of lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f and a metallic base plate 5 , Such as in 1 shown has the electric power converter 1 six low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k , and six high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m ,
  • The metallic base plate 5 has horseshoe shape and is made of a single aluminum material to reduce the weight and improve the thermal conductivity and For example, to achieve a high thermal radiation.
  • The output busbar 2 B For example, it is made of a copper plate and connected to the output terminal 2a assembled. The output busbar 2 B extends from the output port 2a along the inner peripheral part of the metallic base plate 5 and acts as an output terminal wiring part to which the six high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m are connected. The output busbar 2 B has a U-shape and extends along the inner peripheral portion of the metallic base plate 5 , Both the output connector 2a as well as the output busbar 2 B are on the inner circumferential part of the metallic base plate 5 arranged.
  • Each of the six low potential side switching elements 3a . 3c . 3e . 3g 3i and 3k and the six high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m consists of an n-channel MOSFET (n-channel metal oxide semiconductor field effect transistor) which may be mentioned as an example. Each of the switching elements is on the one surface of the metallic base plate 5 arranged or put on it. Throughout the following explanations and claims, the word "arranged" is given the meaning of positioning one or more of the components without any limitation. Specifically, such an n-channel MOSFET is a small package general purpose switching element in which the conductor terminals are provided in the direction of the gate terminals in the order of gate G, drain D and source S as seen from the surface of the n-channel MOSFET.
  • The six lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f are used to connect a number of conductor wires (for example, six conductor wires), which protrude from an armature of the motor generator.
  • As in 1 shown are the six lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f separately on the outer circumferential part of the main surface of the metal base plate 5 located to facilitate the liaison work.
  • In a concrete example, a wiring pattern is formed on the main surface of the metal base plate 5 made possible by an insulating film and is made of copper. By on the main surface of the metallic base plate 5 formed wiring patterns become the output terminal 2a , the output busbar 2 B , the six low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k , the six high-potential-side switching elements 3b . 3d . 3f . 3h . 3y and 3m and the lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f certainly.
  • 5 FIG. 12 is a diagram showing the wiring pattern formed on the main surface of the metal base plate. FIG 5 of the electric power converter 1 is formed in the motor generator according to the first embodiment of the present invention.
  • As in 5 showed that on the metallic base plate 5 Wiring pattern formed an output busbar connection part 6 , a lead wire connection terminal connection part 7 ( 7a to 7f ), a switching element connection part 9 ( 9a to 9m ) and a gate lead terminal connection part 10 ( 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m ).
  • The output busbar connection part 6 is with the output busbar 2 B connected. Each of the lead wire connection terminal connection parts 7 ( 7a to 7f ) is with the respective one of the lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f each connected. The ground connection part 8th is connected to the body frame of the motor generator. Each of the circuit element connection parts 9 ( 9a to 9m ) is connected to the respective one of the low potential side switching elements 3a . 3c 3e . 3g . 3i and 3k or each of the high-potential-side switching elements 3b . 3d . 3f . 3h . 3y and 3m connected. About the gate line connection part 10 ( 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m ) becomes a gate input to the gate line terminal of each of the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m delivered.
  • A bridge circuit is through the wiring pattern on the metallic base plate 5 educated. The bridge circuit consists of the six low-potential-side switching elements 3a . 3c . 3e . 3g . 3i and 3k and the six high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m together. The gate line connection part 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m is respectively at the outer circumferential part of the main surface of the metal base plate 5 arranged to achieve an easy connection work for the signal wiring, which is different from a control device 16 (in the 1 to 6 omitted and in the 7 to 9 shown). The wiring pattern which is on the metallic base plate 5 is formed of a single wiring pattern layer formed of a single metal layer.
  • 6 is a front view, which is a part the wiring of the switching elements 3a to 3k and 3m in the electric power converter 1 in the motor generator 11 according to the first embodiment of the present invention.
  • For example, the gate line terminal (G) of the low potential side switching element is 3a connected to a wiring pattern, wherein on a part of the wiring pattern of the gate line connection connecting part 10 is formed. The drain line terminal (D) of the low potential side switching element 3a is connected to another wiring pattern, at a part of this other wiring pattern, the lead wire connection terminal connection part 7a is formed.
  • The source line terminal (S) of the low potential side switching element 3a is connected to another wiring pattern, at a part of this other wiring pattern, the ground connection part 8th is formed.
  • A pack of this low potential side switching element 3a is attached to the wiring pattern in connection to the drain line terminal by soldering. Likewise, each of the other low potential side switching elements 3c . 3e . 3g . 3i and 3k connected to a corresponding wiring pattern.
  • In addition, the connection state of each of the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m to the corresponding wiring patterns similar to the connection state of each of the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k with the exception of the drain line terminal and the package of the high potential side switching elements which are connected to the wiring patterns (by soldering), wherein at a part thereof the output bus bar connection part 6 is formed.
  • In the electric power converter 1 According to the first embodiment, each of the lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f and each of the gate line connecting links 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m on the outer peripheral part of the main surface of the metal base plate 5 arranged. The direction (the direction of packing and the direction of the lead terminal) of each of the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m is set and set so that easy connection work of the output terminal 2a and the output terminal 2 B on the inner peripheral part of the main surface of the metal base plate 5 given is.
  • Since the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m on the same surface of the metallic base plate 5 allows the structure of the electric power shaper 1 in the motor generator according to the first embodiment, uniform cooling of the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m in comparison with a construction in a conventional electric power converter in which the high potential side switching elements are located in different layers or steps.
  • This construction of the electric power converter 1 According to the first embodiment, an imbalance of branch currents generated in the motor generator and cooling deterioration of the high potential side switching elements can be prevented. This cooling deterioration would cause the current flowing in the high potential side switching element to exceed its absolute limit because there is insufficient cooling of the element.
  • Furthermore, the construction of the electric power generator 1 According to the first embodiment, since the high-potential-side and low-potential-side switching elements make contact with each other on the same surface of the single metal base plate, they allow a small-sized and small-thickness electric power generator 5 are arranged.
  • Further, since the number of manufacturing steps and the number of necessary components can be reduced, it is possible to manufacture the electric power generator 1 to lower. As continues the electric power converter 1 from the metallic base plate 5 made of aluminum material makes use of, it is possible to reduce the total weight of the electrical line transformer and to achieve high thermal conductivity and high thermal radiation.
  • Further, since the lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f on the outer peripheral part of the metallic base plate 5 are arranged, and the direction of each of the high-potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m and the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k on the main surface of the metallic base plate 5 chosen and adjusted so that their arrangement during the manufacture of the electric power converter 1 can be done in a light operation, it is possible to easily each of the lead wire ver connection terminals 4a . 4b . 4c . 4d . 4e and 4f with the corresponding lead wire of the armature 14 (in the 1 to 6 omitted and in the 7 to 9 shown), in the motor generator 11 connect to.
  • Furthermore, the gate lead terminal connection parts 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m on the outer peripheral part of the main surface of the metal base plate 5 are arranged and each of the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m is adjusted for easy handling in the wiring work of each of these elements and the components on the main surface of the metal base plate 5 In order to achieve this, it becomes possible to easily connect each of the gate lead terminal connection parts to the corresponding wires sent from the control device 16 (in the 1 to 6 omitted and in the 7 to 9 shown), over which a control signal is supplied to each of the gate line terminals.
  • As the output terminal continues 2a and the output busbar 2 B on the inner peripheral part of the main surface of the metal base plate 5 are arranged and the direction of each of the low potential side switching elements 3a . 3c . 3e . 3g . 3i and 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m is set to easily connect the output terminal 2a and the output busbar 2 B on the main surface of the metallic base plate 5 In general, it is possible to position the various wires on the side of the output connection terminal 2a on the inner peripheral part of the metallic base plate 5 to unite and this structure allows the wires on the side of Ausgangsverbindin connection 2a easy with the controller 16 (in the 1 to 6 omitted and in the 7 to 9 shown) and the main body of the motor generator to connect.
  • After further the metallic base plate 5 uses a single-layer wiring pattern to form the bridge circuit, this construction avoids any heat storage space formed in the wiring layer and can reduce the cooling ability on the metal base plate 5 improve. In addition, since the thickness of the wiring pattern on the metal base plate 5 is increased and therefore the current carrying capacity is increased as compared with a conventional construction in which a double wiring layer is used, it is possible to use the electric power converter 1 According to the first embodiment, use in many types of devices in which a large electric power occurs.
  • Further, the switching elements in a single layer of the metallic base plate 5 in the electric power converter 1 formed and each of the low-potential side switching elements 3a . 3c . 3e . 3g . 3i . 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m is on the main surface of the metallic base plate 5 attached by soldering. This construction enables each of the switching elements to be easily placed on the main surface of the metal base plate 5 to fix or fasten.
  • 7 FIG. 14 is a view showing an example of the fixing of the electric power converter. FIG 1 at the motor generator 11 according to the first embodiment of the present invention. 8th FIG. 12 is a perspective view showing the electric power shaper. FIG 1 according to 7 represents in attachment to the motor generator.
  • Either 7 as well as 8th show the state in which the rear cover or cap of the motor generator 11 is removed with the electric power converter 1 equipped according to the first embodiment.
  • As in the 7 and 8th shown, sits the motor generator 11 from a case frame 11 , a brush holder 13 , an output terminal 15 and the controller 16 together. The case frame 12 takes a rotor, which passes through a pulley 17 is set in rotation, as well as an anchor 14 on, which is arranged around the outer circumference of the rotor around. The brush holder 13 includes a brush which is in sliding contact with a slip ring mounted on the rotor shaft of the rotor outside the axial end surface of the rear housing frame 12 is attached. Via the output connection 15 which is connected to the output terminal 2a of the electric power converter 1 is connected, electrical power is between the electric power converter 1 and external devices (not shown). The control device 16 sets the output voltage at the output terminal 15 and performs ON / OFF control of each of the switching elements in the electric power converter.
  • Six conductor wires 14a . 14b . 14c . 14d . 14e . 14f protrude backwards from the anchor 14 along the axis of the rotor shaft of the rotor away. The front end of each of the six lead wires is connected to a respective one of the lead wire connection terminals 4a . 4b . 4c . 4d and 4f connected. The construction of the electric power converter according to the first embodiment makes it possible to easily form a working space for bending and soldering because each of the electrical lead wire connection terminals 4a . 4b . 4c . 4d . 4e and 4f on the outer circumferential part of the metallic base plate 5 located. It is possible the shape of the output terminal 15 according to the mounting surface and the position of the motor generator 11 and the hardness of the output wire to change. For example, it is possible to have a screw on the end part of the outlet port 15 to provide an output harness to the metallic base plate 5 of the electric power converter 1 to fix.
  • 9 FIG. 15 is a view showing a wiring pattern to electrically connect the components such as the low potential side elements 3a . 3c . 3e . 3g . 3i and 3k and the high potential side switching elements 3b . 3d . 3f . 3h . 3y and 3m of the power converter or voltage transformer 1 in the motor generator 11 according to the first embodiment of the present invention.
  • The configuration of the components in the electrical power converter 1 as they are in 9 is shown, shows a first bridge circuit, which consists of the three low-potential side switching elements 3a . 3c and 3e and the three high potential side switching elements 3b . 3d and 3f is formed and a second bridge circuit, which consists of the three low-potential side switching elements 3g . 3i and 3k and the three high potential side switching elements 3h . 3y and 3m is formed. In addition, the anchor has 14 a pair of three-phase windings, namely the three-phase windings 14A and 14B , The three-phase winding 14A is connected to the first three-phase bridge circuit. The three-phase winding 14B is connected to the second three-phase bridge circuit.
  • In the electric power generation operation mode, each of the first and second bridge circuits functions as a three-phase full wave rectifier circuit to perform a synchronous rectification so that an AC voltage generated in the three-phase windings 14A and 14B is rectified, rectified into a DC voltage.
  • In electric motor operation, each of the first and second bridge circuits acts as an inverter circuit for reforming the battery 18 Supplied DC voltage in a three-phase AC voltage for controlling the six switching elements for switching on and off in accordance with an electrical angle of 120 ° in each of the phases of the three-phase windings 14A and 14B ,
  • The control device 16 controls the motor generator 11 for performing the electric power generation or the electric motor operation, and includes a reference voltage setting circuit 16A and an inverter control circuit 16B ,
  • In the electric power generation operation mode, the reference voltage setting circuit sets 16A the field current flowing in the field winding of the rotor for controlling the output voltage of the motor generator 11 one. In the electric power generation operation mode, the inverter control circuit generates 16B Control signals (gate input signals) and supplies them to the twelve switching elements 3a - 3k and 3m to the ON / OFF circuit of the twelve switching elements 3a - 3k and 3m to control.
  • The concept of the present invention is not limited to the first embodiment described above, and it is possible to design the electric power converter 1 in the motor generator 11 according to the first embodiment. For example, it is explained in the first embodiment that the electric power converter 1 in the motor generator is capable of performing the electric power generation and the electric motor operation. The present invention is not limited to the first embodiment. It is possible to apply the concept of the first embodiment according to the present invention to another electric power converter (or rectifier) used for an alternator for vehicles that performs only electric power generation. In addition, as in 9 shown, the electric power converter 1 in connection with the first embodiment as comprising a pair of bridge circuits. The present invention is not limited to the first embodiment. It is possible the concept of the electric power converter 1 to apply to another type of electrical power converter equipped with a single bridge circuit or with no less than three bridge circuits.
  • Further, the first embodiment uses a metallic base plate 5 which is made of aluminum material. The present invention is not limited to the first embodiment. For example, it is possible to manufacture the metal base plate using another metal other than aluminum.
  • Second embodiment
  • There will now be a description of a motor generator 100 as a rotary electric machine according to a second embodiment of the present invention with reference to FIGS 10 to 18 given.
  • 10 is a diagram showing an overall structure of the motor generator 100 as a rotary electric machine for vehicles according to the second embodiment of the present invention.
  • The motor generator 100 contains a front housing frame part 101 , a rear housing frame part 102 , a stator 103 , a rotor 104 , an electrical power converter 105 , Cooling fins 106 , a brush arrangement 107 , a control device 108 , a rear cap 109 and a pulley 110 ,
  • The front housing frame part 101 and the rear body frame part 102 have cup-shaped shape around the rotor 104 and the stator 103 pick up and support. The opening part of the front housing frame part 101 and the opening part of the rear housing frame part 102 face each other to form a receiving space, which the stator 103 and the rotor 104 receives. The front housing frame part 101 and the rear body frame part 102 are tight over a number of screws taking up the stator 103 clamped together.
  • The stator 103 contains a stator core 131 and a stator winding 132 on the stator core 131 is wound. The stator core 131 is arranged so that it is the rotor 104 opposite. The rotor 104 contains a field winding 141 and a rotor shaft 144 , The field winding 141 magnetizes pole cores 142 and 143 as field magnetic poles. The rotor 104 is rotatably supported by a pair of bearings which are housed in a pair of bearing housings, which are in the front housing frame part and the rear housing frame part 102 are located.
  • The cooling fins 145 and 146 are at the end faces with respect to the axial direction of the pole cores 142 and 143 appropriate. The pulley 110 is at the front end of the rotor shaft 144 fastened by a nut. A pair of slip rings is located at the rear end of the rotor shaft 144 outside the rear body frame part 102 , The pair of slip rings is at the two ends of the field winding 141 connected.
  • The electrical power converter 105 Performs at least one of the following operations. One converts an AC electrical power, which is in the stator winding 132 is induced while the electric power converter 105 connected to a direct current, and the other converts a DC electric power stored in a battery into an AC current and supplies the AC power to the stator winding 132 ,
  • The cooling fins 106 are at the top (the back) of the electric power converter 105 attach and cool the electrical power converter 105 ,
  • 11 is an illustration, which is a concrete example of the electric power converter 105 in the motor generator 100 according to the second embodiment of the present invention. 12 FIG. 12 is a view showing a wiring pattern to electrically connect the various components in the motor generator. FIG 100 according to the second embodiment of the present invention.
  • As in the 11 and 12 is shown, there is the electric power converter 105 from an output terminal 152a , an output busbar 152b , a number of low potential side switching elements 153a . 153c . 153e . 153g . 153i and 153k (For example, six low potential side switching elements), a number of high potential side switching elements 153b . 153d . 153f . 153h . 153j and 153m (For example, six high-potential-side switching elements), a number of lead wire connection terminals 154a . 154b . 154c . 154d . 154e and 154f , and a metallic base plate 155 ,
  • The metallic base plate 155 has horseshoe shape and is made of a single aluminum material, for example, to achieve a low weight, high thermal conductivity and high thermal radiation. The output busbar 152b is made of a copper plate and with the output connector 152a assembled, for example. The output busbar 152b extends from the output port 152a to act as an output terminal wiring to which the six high potential side switching elements 153b . 153d . 153f . 153h . 153j and 153m are connected.
  • Each of the six low potential side switching elements 153a . 153c . 153e . 153g . 153i and 153k and the six high potential side switching elements 153b . 153d . 153f . 153h . 153j and 153m consists of an n-channel MOSFET (n-channel metal-oxide-semiconductor field-effect transistor), this being only an example. Each of the switching elements is on a surface of the metallic base plate 155 arranged. Specifically, an n-channel MOSFET is a small-pack general-purpose circuit element in which the leads of the gate G, the drain D, and the source S are provided in this order as viewed from the surface of the n-channel MOSFET on lead terminals.
  • The six lead wire connection terminals 154a . 154b . 154c . 154d . 154e and 154f the NEN for connecting a number of lead wires (for example, six lead wires), which of the stator winding 132 of the motor generator 100 stand away.
  • As in 11 Shown are the six lead wire connection terminals 154a . 154b . 154c . 154d . 154e and 154f separated from each other at the outer circumferential part of the main surface of the metal base plate 155 arranged to easily perform the connection work.
  • In a concrete example, a wiring pattern is formed on the main surface of the metal base plate 155 formed over an insulating film and is made of copper. By the wiring pattern which is on the main surface of the metal base plate 155 is formed, the output terminal 152a , the output busbar 152b , the six low potential side switching elements 153a . 153c . 153e . 153g . 153i and 153k , the six high-potential-side switching elements 153b . 153d . 153f . 153h . 153j and 153m , and the lead wire connection terminals 154a . 154b . 154c . 154d . 154e and 154f on the main surface of the metallic base plate 105 positioned.
  • The wire connection, which in 12 is shown, shows the electrical power converter 105 with a first bridge circuit, which consists of the three low-potential-side switching elements 153a . 153c and 153e and the three high potential side switching elements 153b . 153d and 153f consists, and with a second bridge circuit, which consists of the three low-potential side switching elements 153g . 153i and 153k and the three high potential side switching elements 153h . 153j and 153m consists. In addition, the stator winding has 132 a pair of three-phase windings 132A and 132B , The three-phase winding 132A is connected to the first three-phase bridge circuit. The three-phase winding 132B is connected to the second three-phase bridge circuit.
  • In the electric power generation operation mode, each of the first and second bridge circuits functions as a three-phase full wave rectifier for performing synchronous rectification for rectifying an AC voltage present in the three-phase windings 132A and 132B is induced in a DC voltage.
  • In the electric motor operation, each of the first and second bridge circuits functions as an inverter circuit for converting the DC voltage supplied from the battery 118 is supplied to a three-phase AC voltage for controlling the six switching elements to turn on and off after every 120 ° shift in each phase of the three-phase windings 132A and 132B ,
  • The control device 118 controls the motor generator 100 for performing the electric power generation or the electric motor operation. The control device 118 includes a reference voltage setting circuit 108A and an inverter control circuit 108B ,
  • In the electric power generation mode, the reference voltage setting circuit 108A the field current flowing in the field winding of the rotor, to the output voltage of the motor generator 100 to control.
  • In the electric power generation mode, the inverter control circuit generates 108B Control signals (gate input signals) and supplies them to the twelve switching elements 153a to 153k and 153m to the ON / OFF operation of the twelve switching elements 153a to 153k and 153m to control.
  • In the construction of the motor generator 100 As the rotary electric machine according to the second embodiment, the outer end surface has with respect to the axial direction of the rear housing frame part 102 a concave part 121 , which has geometrically similar shape as the electric power converter 105 , The electrical power converter 105 is in the concave part 121 of the rear housing frame part 102 used and with a resin 24 sealed, as in 10 is shown.
  • 13 is a perspective view showing the electric power converter 105 shows, which on the rear housing frame part of the motor generator 100 is attached according to the second embodiment of the present invention.
  • 13 shows the condition before the back cover 109 and the controller 108 on the rear housing frame part 102 are fixed and assembled with it, namely in the state in which the electric power converter 105 to the rear housing frame part 102 is scheduled without the control device 108 and the back cover 109 are attached to the rear housing frame part.
  • 14 is a top view, which is the behind housing frame part 102 of the motor generator 100 according to the second embodiment of the present invention. 15 is a perspective view showing the shape of an outer end face of the rear frame member 102 with respect to the axial direction of the motor generator 100 according to the second embodiment of the present invention. 16 is a view showing a rear surface of the rear Ge houses mimic some 102 of the motor generator 100 according to the second embodiment of the present invention. 17 FIG. 15 is a perspective view showing the shape of an inner end surface of the rear housing frame part. FIG 102 with respect to the axial direction of the motor generator according to the second embodiment of the present invention.
  • As in the 14 and 15 is shown, is the concave part 121 on the outer end surface with respect to the axial direction of the rear housing frame part 102 educated. The shape of the concave part 121 geometrically corresponds to the shape of the electric power converter 105 , The concave part 121 is formed so that the height of the wall surface at the outer peripheral part of the concave part 121 higher than the surface of the resin 124 with which the electric power converter 105 is sealed. For example, heat-resistant silicone resin is used as the sealing resin 124 used.
  • The electrical power converter 105 is in the concave part 121 of the rear housing frame part 102 used and with the sealing resin 124 so sealed that part of the electrical power converter 105 with the sealing resin 124 is covered. For example, silicone resin is used as the sealing resin 124 used. Otherwise could be part of the electrical power converter 105 (for example, the lead terminal of each of the switching elements) may otherwise be short-circuited by salt water or dust.
  • In the construction of the electric power converter 105 the upper surface of the packing is each of the switching elements 153a to 153k and 153m from the resin surface in front and the cooling fins 106 are on the upper surface of the switching elements 153a to 153k and 153m through a thermally conductive sheet 161 arranged so that the upper surfaces of the packs with the cooling fins 106 stay in contact.
  • 18 is a perspective view of the motor generator 100 , which with the cooling fins 106 is equipped, according to the second embodiment of the present invention.
  • The cooling fins 106 consist of a number of plate parts (made for example of aluminum sheet), which have an excellent cooling effect. The cooling fins 106 are arranged radially.
  • Each of the cooling fins 106 is in contact with a respective one of the switching elements 153a to 153k and 153m to effectively emit the heat energy present in the electrical power converter 105 is produced.
  • The rear housing frame part 102 has a number of openings 122 over which a number of conductor wires of the stator winding 132 with the side of the electric power converter 105 connected is.
  • As in the 16 and 17 shown is a number of rib-shaped parts 123 on the end surface or bottom surface with respect to the axial direction of the rear housing frame part 102 educated. These rib-like parts 123 act as a cooler.
  • How out 13 is apparent, is the brush assembly 107 in the axial direction on the outside of the rear housing frame part 102 arranged. The brush arrangement 107 picks up the brushes, over which a current flows to the field winding 141 is delivered.
  • One between the cooling fins 106 formed space, a space on the outer peripheral side of the brush assembly 107 and a space in each of the rib-like parts 123 are in communication with each other and form a cooling channel, through which cooling air flows. How out 10 the reference symbol "F" indicates the cooling air flow. This means the cooling air gets into the inside of the motor generator 110 through the cooling air window 109a introduced, which on the side surface of the rear cover 109 is formed, and the cooling air flows through the cooling passage in accordance with the rotation of the rotor 104 ,
  • So there with the motor generator 100 of the second embodiment as described above, the entire electric power converter 105 with the sealing resin 124 is sealed, it is possible to prevent dust and water, especially salt water, from entering and attaching to the line terminals of the switching elements, which is the electrical power converter 105 form. This construction of the electric power converter 105 can prevent short circuits between the line terminals of the switching elements occur, and can prevent operation error due to the short circuits that would be caused between the line terminals of the switching elements. As a result, it is possible to use the functions of the electric power converter 105 for a long period of time, even when working under severe environmental conditions, among which that with the motor generator 100 and the electric power converter 105 equipped vehicle drives.
  • Then on with the electric power converter 105 motor generator equipped according to the second embodiment 100 the cooling fins 106 This construction may be the electric power converter 105 that with the sealing resin 124 is covered, cool effectively. Further, since each of the cooling fins 106 Having contact with the upper surface of each of the switching elements, this design enhances and enhances the cooling capability of the electrical power converter 105 ,
  • Next are the rib-shaped parts 123 on the end face with respect to the axial direction of the rear housing frame part 102 intended. The between the cooling fins 106 formed space, the space, which on the outer circumference of the brush assembly 107 is formed, and the space which in each of the rib-shaped parts 123 is formed, communicate with each other and form a cooling air channel. This construction can be both sides in the axial direction of the electric power converter 105 sealed with the sealing resin, through the cooling fins 106 and the rear housing frame part 102 cool. This design can further enhance the cooling capability of the electrical power converter 105 improve.
  • After continue the wall height of the concave part 121 in the rear housing frame part 102 is higher than the surface of the sealing resin 124 with which the electric power converter 105 is covered, this construction allows in the manufacture of the insert molding of the sealing resin 124 around the electrical power converter 105 with the sealing resin 124 seal. This can be the efficient work of making the motor generator 100 improve which with the electric power converter 105 equipped according to the second embodiment.
  • The concept of the present invention is not limited by the second embodiment described above, and it is possible to design the same with the electric power converter 105 according to the second embodiment equipped motor generator 100 to modify. For example, it has been explained that according to the second embodiment, the motor generator 100 , which with the electric power converter 105 is capable of performing the generation of electric power and the electric motor operation. The present invention is not limited to the second embodiment. It is possible to apply the concept of the second embodiment according to the invention also to the case where an electric power converter is covered with sealing resin in an electric power converter (or a rectifier) used for a vehicle alternator that only supplies electric power performs.
  • Next, as in 12 shown, the second embodiment with an electric power converter 105 which includes a pair of bridge circuits. The present invention is not limited to the second embodiment. It is possible the concept of the electric power converter 105 to apply to another type of electric power converter, which is equipped with a single bridge circuit or not less than three bridge circuits.
  • Further, in the second embodiment, the metallic base plate becomes 105 used, which is made of aluminum material. The present invention is not limited by the second embodiment. For example, it is possible to manufacture the metal base plate using another material other than aluminum.
  • While specific embodiments of the present invention have been described in detail, it is understood the professionals that many modifications and alternative forms regarding these details in the light of the total void of here given disclosure can be developed. According to are the individual arrangements disclosed are for example only and not in the limiting sense of the basic idea to understand the invention, which in its full width the following claims and all equivalents of which is defined.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited patent literature
    • - JP 2007-49840 [0006, 0008, 0014]
    • - JP 2007-49841 [0006, 0008, 0014]
    • - JP 2007-166857 [0006, 0012, 0014]

Claims (24)

  1. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) is to be mounted for vehicles and which with an armature of the rotary electric machine ( 11 ), the electric power converter comprising: a bridge circuit consisting of a number of high-potential-side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ), and a number of low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ) consists; and a metallic base plate ( 5 ), which is made of a single material, wherein on a main surface of the metallic base plate, both the plurality of high potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) as well as the number of low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ) are arranged.
  2. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) is to be mounted for vehicles according to claim 1, wherein the metallic base plate ( 5 ) is made of aluminum material.
  3. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 1 or 2, wherein each of the number of high-potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and each of the number of low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ) is an n-channel metal oxide semiconductor field effect transistor (n-channel MOSFET).
  4. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 4) for vehicles according to claim 3, wherein the n-channel MOSFET is a multi-purpose package element in which the line terminals are arranged in the order of a gate, a drain and a source.
  5. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 1 or 2, wherein a number of conductor wire connection terminals ( 4a . 4b . 4c . 4d . 4e and 4f ) on the main surface of the metallic base plate ( 5 ) is arranged to receive connection with a number of conductor wires of the armature.
  6. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 5, wherein the number of conductor wire connection terminals ( 4a . 4b . 4c . 4d . 4e and 4f ) on an outer peripheral part on the main surface of the metal base plate ( 5 ) is arranged.
  7. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 6, wherein a direction of each of the high potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and the low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ), which on the main surface of the metallic base plate ( 5 ) are adjusted so that the conductor wire connection terminals ( 4a . 4b . 4c . 4d . 4e and 4f ) on the outer peripheral part on the main surface of the metallic base plate ( 5 ) can be arranged.
  8. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 1 or 2, wherein conductor connection connecting parts ( 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m ) on the main surface of the metallic base plate ( 5 ) are arranged, via which a control signal to each of the high-potential-side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and the low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ) is supplied to the ON / OFF operation of the high potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and the low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ).
  9. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 8, wherein the conductor connection connecting parts ( 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m ) on the outer periphery of the main surface of the metallic base plate ( 5 ) are arranged.
  10. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 9, wherein the direction of each of the high potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and the low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ), which on the main surface of the metallic base plate ( 5 ) is set, is set so that the conductor connection connecting parts ( 10a . 10b . 10c . 10d . 10e . 10f . 10g . 10h . 10i . 10j . 10k and 10m ) on the outer peripheral part on the main surface of the metallic base plate ( 5 ) can be arranged.
  11. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 1 or 2, wherein an output terminal ( 2a ) and an output lead via which the number of low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ) with the output terminal ( 2a ), on the main surface of the metallic base plate ( 5 ) are arranged.
  12. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 11, wherein the output terminal ( 2a ) and the output lead at an inner peripheral part on the main surface of the metallic base plate (FIG. 5 ) are arranged.
  13. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to claim 12, wherein the direction of each of the high potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and the low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ), which on the main surface of the metallic base plate ( 5 ) is set, is set so that the output terminal ( 2a ) and the output lead at the inner circumferential part on the main surface of the metallic base plate (FIG. 5 ) can be arranged.
  14. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to any one of claims 1 to 13, wherein wirings of the high potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and the low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ) constituting the bridge circuit are a one-layer wiring pattern formed on the main surface of the metallic base plate (FIG. 5 ) is formed.
  15. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) according to any one of claims 1 to 14, wherein the package of each of the high potential side switching elements ( 3b . 3d . 3f . 3h . 3y and 3m ) and the low potential side switching elements ( 3a . 3c . 3e . 3g . 3i and 3k ) on the main surface of the metallic base plate ( 5 ) is fixed by soldering.
  16. Electric power converter ( 1 ), which is connected to a rotating electrical machine ( 11 ) for vehicles according to any one of claims 5 to 7, wherein each of the conductor wire connection terminals ( 4a . 4b . 4c . 4d . 4e , and 4f ) is arranged separately with respect to the respective other terminals along the circumferential direction.
  17. Rotating electrical machine ( 100 ) for vehicles, comprising: a rotor ( 104 ), which with a field winding ( 141 ) for the magnetization of magnetic field poles ( 142 . 143 ) is equipped; a stator ( 103 ), which has a stator core ( 131 ), which is connected to a stator winding ( 132 ) and the rotor ( 104 ) is arranged opposite; a housing frame, which is designed to hold the rotor ( 104 ) and the stator ( 103 ) is supported; an electrical power converter ( 105 ), which with the stator winding ( 132 ) and is adapted to receive an AC power which is in the stator winding ( 132 ) is converted into a direct current and / or converts a DC power stored in a battery into an alternating current and the converted alternating current to the stator winding ( 132 ) supplies; and cooling fins ( 106 ), which at an upper part of the electrical power converter ( 105 ) are arranged to the electrical power converter ( 105 ) to cool; wherein the housing frame from a front housing frame part ( 101 ), which on the side of a pulley ( 110 ) arranged on the rotor ( 104 ), and a rear housing frame part ( 102 ), which is the side of the pulley ( 110 ) is arranged opposite, and wherein a concave part ( 121 ) on the outer end surface with respect to the axial direction of the rear housing frame part ( 102 ), wherein the concave part ( 121 ) in the form of the electric power converter ( 105 ) corresponds; and wherein the electrical power converter ( 105 ), which in the concave part ( 121 ), with a sealing resin ( 124 ) is sealed.
  18. Rotating electrical machine ( 100 ) for vehicles according to claim 17, wherein the sealing resin ( 124 ), with which the electrical power converter ( 105 ) is a heat-resistant silicone resin.
  19. Rotating electrical machine ( 100 ) for vehicles according to claim 17 or 18, wherein each of the cooling fins ( 106 ) on the upper surface of each of the switching elements ( 153a . 153b . 153c . 153d . 153e . 153f . 153g . 153h . 153i . 153j . 153k and 153m ) in the electrical power converter ( 105 ) is arranged.
  20. Rotating electrical machine ( 100 ) for vehicles according to any one of claims 17 to 19, wherein a cooling mechanism on the inner side surface with respect to the axial direction of the rear housing frame part ( 102 ) is formed and the cooling mechanism a number of rib-shaped parts ( 123 ), and each of the rib-shaped parts ( 123 ) in the form of each of the cooling fins ( 106 ) corresponds.
  21. Rotating electrical machine ( 100 ) for vehicles according to claim 20, wherein a brush arrangement ( 107 ) with respect to the axial direction outside of the rear housing frame part ( 102 ) is arranged to receive a brush, via which a current to the field winding ( 141 ), and being a space between the Kühlrip pen ( 106 ) is formed, a space on the outer peripheral side of the brush assembly ( 107 ), and a space between the rib-shaped parts ( 123 ), which form a cooling mechanism, communicate with each other and form a cooling air passage.
  22. Rotating electrical machine ( 100 ) for vehicles according to any one of claims 17 to 21, wherein the rear housing frame part ( 102 ) a number of openings ( 122 ), over which a number of conductor wires of the stator winding ( 132 ) with the electrical power converter ( 105 ) connected is.
  23. Rotating electrical machine ( 100 ) for vehicles according to any one of claims 17 to 19, wherein a wall height of the concave part ( 121 ) is higher than a surface of the sealing resin ( 124 ), with which the electrical power shaper ( 105 ) is sealed.
  24. Rotating electrical machine ( 100 ) for vehicles according to claim 17, wherein the electric power converter ( 105 ) comprises: a bridge circuit consisting of a number of high-potential-side switching elements ( 153b . 153d . 153f . 153h . 153 and 153m ) and a number of low potential side switching elements ( 153a . 153c . 153e . 153g . 153i , and 153k ) consists; and a metallic base plate ( 155 ), which is made of a single material, wherein on a main surface of the metallic base plate, both the number hochpotentialseitiger switching elements ( 153b . 153d . 153f . 153h . 153 and 153m ) as well as the number of low potential side switching elements ( 153a . 153c . 153e . 153g . 153i , and 153k ) is arranged.
DE102009044240A 2008-10-16 2009-10-13 Electric power converter for, e.g. generator motor for motor vehicle e.g. passenger car, has low side MOSFETs and high side MOSFETs that are mounted on main surface of substrate, where substrate is made of aluminum material Withdrawn DE102009044240A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2008266965A JP2010098831A (en) 2008-10-16 2008-10-16 Power converter of rotary electric machine for vehicle
JP2008-266965 2008-10-16
JP2008-279351 2008-10-30
JP2008279351A JP5083665B2 (en) 2008-10-30 2008-10-30 Rotating electric machine for vehicles

Publications (1)

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DE102009044240A1 true DE102009044240A1 (en) 2010-07-22

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2011051082A1 (en) * 2009-10-30 2011-05-05 Robert Bosch Gmbh Motor vehicle generator, bearing shield circuit device, and bearing shield having optimized cooling properties
FR2967845A1 (en) * 2010-11-23 2012-05-25 Valeo Equip Electr Moteur Architecture of interconnected electronic power modules for a rotating electric machine and rotating electric machine comprising such an architecture
FR3023997A1 (en) * 2014-07-21 2016-01-22 Valeo Equip Electr Moteur Architecture of interconnected electronic power modules for a hexaphased rotating electric machine and hexaphased rotary electric machine comprising such an architecture
DE102015121166A1 (en) * 2015-12-04 2017-06-08 Ebm-Papst Mulfingen Gmbh & Co. Kg Covering device for an electronics housing of an electric motor

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JP2007049840A (en) 2005-08-11 2007-02-22 Mitsubishi Electric Corp Vehicle dynamo-electric machine
JP2007049841A (en) 2005-08-11 2007-02-22 Mitsubishi Electric Corp Vehicle dynamo-electric machine
JP2007166857A (en) 2005-12-16 2007-06-28 Mitsubishi Electric Corp Vehicular electric motor generator

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JP2007049840A (en) 2005-08-11 2007-02-22 Mitsubishi Electric Corp Vehicle dynamo-electric machine
JP2007049841A (en) 2005-08-11 2007-02-22 Mitsubishi Electric Corp Vehicle dynamo-electric machine
JP2007166857A (en) 2005-12-16 2007-06-28 Mitsubishi Electric Corp Vehicular electric motor generator

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011051082A1 (en) * 2009-10-30 2011-05-05 Robert Bosch Gmbh Motor vehicle generator, bearing shield circuit device, and bearing shield having optimized cooling properties
FR2967845A1 (en) * 2010-11-23 2012-05-25 Valeo Equip Electr Moteur Architecture of interconnected electronic power modules for a rotating electric machine and rotating electric machine comprising such an architecture
WO2012069737A1 (en) * 2010-11-23 2012-05-31 Valeo Equipements Electriques Moteur Architecture of interconnected electronic power modules for a rotary electric machine and rotary electric machine comprising such an architecture
US9680356B2 (en) 2010-11-23 2017-06-13 Valeo Equipments Electriques Moteur Architecture of interconnected electronic power modules for rotary electrical machine, and rotary electrical machine comprising architecture of this type
FR3023997A1 (en) * 2014-07-21 2016-01-22 Valeo Equip Electr Moteur Architecture of interconnected electronic power modules for a hexaphased rotating electric machine and hexaphased rotary electric machine comprising such an architecture
WO2016012703A3 (en) * 2014-07-21 2016-03-24 Valeo Equipements Electriques Moteur Architecture of interconnected electronic power modules for a six-phase rotary electric machine and six-phase rotary electric machine including such an architecture
CN106664049A (en) * 2014-07-21 2017-05-10 法雷奥电机设备公司 Architecture of interconnected electronic power modules for a six-phase rotary electric machine and six-phase rotary electric machine including such an architecture
US20170163198A1 (en) * 2014-07-21 2017-06-08 Valeo Equipments Electriques Moteur Architecture of interconnected electronic power modules for a hexaphase rotary electrical machine, and hexaphase rotary electrical machine comprising an architecture of this type
US10277156B2 (en) * 2014-07-21 2019-04-30 Valeo Equipements Electriques Moteur Architecture structure of interconnected electronic power modules for hexaphase rotary electrical machine, and hexaphase rotary electrical machine comprising architecture structure of this type
CN106664049B (en) * 2014-07-21 2020-05-15 法雷奥电机设备公司 Six-phase rotating electrical machine and method of interconnecting electronic power modules therein
DE102015121166A1 (en) * 2015-12-04 2017-06-08 Ebm-Papst Mulfingen Gmbh & Co. Kg Covering device for an electronics housing of an electric motor
US10211697B2 (en) 2015-12-04 2019-02-19 Ebm-Papst Mulfingen Gmbh & Co. Kg Cover device for an electronics housing of an electric motor

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