JP3946433B2 - Electric vehicle power supply - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric vehicle power supply device, and more particularly to an electric vehicle power supply device including a control device.
[0002]
[Prior art]
For example, as shown in the circuit diagram of FIG. 9, a conventional electric vehicle power supply device 10 includes an AC reactor 1a, a semiconductor unit 2 composed of elements such as diodes, a DC reactor 3, and switching elements such as IGBTs. An electrical product including the configured semiconductor unit 4, AC reactor 1b, capacitor 5, transformer 6 and the like is configured as a main component device. 8 is an input terminal, and 9 is an output terminal.
[0003]
FIG. 10 is a front view in which the electrical product of FIG. 9 is arranged and stored in the control box 11, and FIG. 11 is a side view of FIG. 10 viewed from the A direction.
As shown in these figures, the electrical components such as the AC reactors 1a and 1b, the DC reactor 3 and the transformer 6 constituting the electric vehicle power supply apparatus are punched up and down to form a wire mesh configuration for cooling. The other electrical product 7 is housed in the semi-open chamber 11a, and the other electrical equipment 7 is housed in the sealed chamber 11b.
[0004]
[Problems to be solved by the invention]
As described above, in the configuration of the conventional electric vehicle power supply device, since the scrolls such as the AC reactors 1a and 1b, the DC reactor 3, and the transformer 6 are heavy loads, these scrolls are suspended from the apparatus main body. The supports 12a and 12b need to have a strengthened shape corresponding to the load, and the reinforcing frame 15 is welded to the box frame of the control box 11 to improve the vibration resistance. It was a complicated structure. In addition, when an electrical product such as a scroll is incorporated in the main body of the power supply unit, it is necessary to use equipment such as a lifter due to its heavy weight. It was necessary to provide a useless space such as securing a space for performing work, and the power supply device was large and heavy. Further, in terms of workability, there are problems such as consideration time for determining the work sequence of installation, complexity of work for performing wiring work in the control box, and work inefficiency.
[0005]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a power supply device for an electric vehicle that simplifies the box frame configuration of the control box to reduce the size and weight, and has good workability. is there.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 is a control box in which electrical components for power supply devices such as a DC reactor, an AC reactor, a semiconductor unit, a capacitor, and a transformer are arranged and stored, and a longitudinal end face of the control box In the electric vehicle power supply device to which the suspension support for mounting the vehicle is attached, the electric parts such as the reactor and the transformer are arranged outside the both ends of the control box and attached to the outside of the upper box of the control box. The suspension frame is configured to be suspended by a suspended frame.
[0007]
According to the first aspect, since the load of the entire power supply device is distributed and the suspension support is balanced in weight, no special reinforcement measures are required, and a simplified box structure of the control box can be obtained. Since the electrical work can be performed outside the box, the work efficiency is greatly improved.
[0008]
According to a second aspect of the present invention, in the electric vehicle power supply device according to the first aspect of the present invention, the electrical components of the scrolls such as the reactor and the transformer are configured to be connected to the control box on the bottom surface by a connection frame. It is characterized by that.
According to the second aspect, since the rigidity of the entire apparatus is improved by connecting with the connecting frame, the vibration resistance can be greatly improved.
[0009]
According to a third aspect of the present invention, there is provided the electric vehicle power supply device according to the first aspect, wherein a plurality of the electrical items of the scrolls such as the reactor and the transformer are attached to a single frame, and The electric potential portion is connected and attached to the suspension support of the control box.
According to the third aspect of the present invention, it is only necessary to incorporate the delivered integrated scrolls, and the workability can be further greatly improved.
[0010]
According to a fourth aspect of the present invention, there is provided the electric vehicle power supply device according to the first aspect, wherein at least two of the scrolls such as the reactor and the transformer have the same height. To do.
According to the fourth aspect, by setting the same height, stability can be improved, and workability and safety can be improved.
[0011]
According to a fifth aspect of the present invention, in the electric vehicle power supply device according to the first aspect, the electric article of the scrolls such as the reactor and the transformer is provided with a positioning support for fixing each lead wire from the scrolls. It is characterized by that.
[0012]
According to the fifth aspect, it is possible to accurately measure the length of each lead wire from the scrolls to the terminal portion of the connection destination, and there is a problem even if a crimp terminal is attached to the tip of the lead wire. Therefore, the workability can be further improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a power supply device for an electric vehicle according to a first embodiment of the present invention, and FIG. 2 is a side view seen from the direction B of FIG.
[0014]
As shown in the figure, in the electric vehicle power supply device of the present embodiment, heavy electrical products such as an AC reactor 1a, a DC reactor 3, an AC reactor 1b, and a transformer 6 are sealed chambers in which other electrical products 7 are stored. 11c is divided and arranged on both sides of the control box 11, and is suspended from suspension supports 17a and 17b attached to both sides of the control box of the sealed chamber 11c. 2 is a semiconductor unit composed of an element such as a diode, 4 is a semiconductor unit composed of a switching element such as an IGBT, 5 is a capacitor, 7 is another electrical product, 14a and 14b are cleats, and 16 is a lead wire. .
[0015]
By adopting such an arrangement, the load of the entire power supply device is distributed, and the suspension supports 17a and 17b are balanced in weight, so that no special reinforcement measures are required, and a simplified box structure of the control box In addition, since the electrical work can be performed outside the box, the work efficiency is greatly improved.
[0016]
FIG. 3 is a front view of the electric vehicle power supply apparatus according to the second embodiment of the present invention, and a configuration different from that of the electric vehicle power supply apparatus according to the first embodiment of FIG. Since only the structure with the frame 18 attached is provided, and the other structures are the same, the redundant description is omitted.
[0017]
In the figure, the electrical components of the scrolls such as the reactors 1a, 1b, 3 and the transformer 6 are composed of iron cores, coils, tightening brackets, tightening bolts, etc. (not shown), and are very rigid electrical components. . Since the rigidity of the entire apparatus is improved by connecting such a scroll and the control box 11 containing the other electrical product 7 by the connecting frame 18, it is possible to greatly improve the vibration resistance.
[0018]
FIG. 4 is a side view of a modification of the electric vehicle power supply device according to the first embodiment of the present invention. The configuration of the present embodiment different from that of the electric vehicle power supply device according to the first embodiment is an AC reactor and a transformer. Since the other structure is the same, redundant description will be omitted.
[0019]
As shown in the figure, the AC reactor 1 b and the transformer 6 are attached to an integrated frame 19 in advance, and the integrated scrolls are suspended by suspension supports 17 b and 17 b of the box frame of the control box 11.
[0020]
FIG. 5 is a circuit diagram when the scrolls such as the AC reactor and the transformer of FIG. 4 are divided, and FIG. 6 is a circuit diagram when the scrolls such as the AC reactor and the transformer of FIG. 4 are integrated.
[0021]
As shown in these figures, a scroll manufacturer that manufactures scrolls such as the AC reactor 1b and the transformer 6 ships with the lead wires 16 attached to the scrolls. As shown in FIG. 5, since the same potential portion between the scrolls can be connected to form one lead wire, the number of the lead wires 16 is divided by the scrolls such as an AC reactor and a transformer as shown in FIG. It can be reduced compared with the case where it is done. 14c and 14d are cleats.
Therefore, in assembling the apparatus, it is only necessary to incorporate the delivered integrated scrolls, and the workability can be further greatly improved.
[0022]
FIG. 7 is an arrangement configuration diagram of electrical components of scrolls such as a reactor and a transformer according to the third embodiment of the present invention.
As shown in the figure, when the AC reactor 1b and the DC reactor 3 or the AC reactor 1b and the transformer 6 are combined, the AC reactor 1b and the transformer 6 are arranged so that they are at the same height as the tall scroll side. It is set as the structure which attached the adapter 20 to the short scroll side, such as the reactor 1b.
By using the same height in this way, stability can be improved, and workability and safety can be improved.
[0023]
FIG. 8 is an arrangement configuration diagram of electrical components of scrolls such as a reactor and a transformer according to the fourth embodiment of the present invention.
As shown in the figure, when the AC reactor 1b and the DC reactor 3 or the AC reactor 1b and the transformer 6 are combined, a positioning support 21 for fixing the lead wires 16 from the scrolls is attached to the integral frame 19. The configuration is as follows.
[0024]
According to the present embodiment, each lead wire 16 from the scrolls can accurately measure the length to the terminal portion of the connection destination, and the crimp terminal 22 is attached to the tip of the lead wire 16. However, it is possible to achieve a configuration without any problem, and further improvement in workability can be achieved.
[0025]
【The invention's effect】
As described above, according to the present invention, the heavy loads of the scrolls are distributed and arranged outside the box, so that the workability can be improved and the size and weight can be reduced.
[Brief description of the drawings]
FIG. 1 is an arrangement configuration diagram of an electric vehicle power supply device according to a first embodiment of the present invention.
FIG. 2 is a side view of FIG. 1 viewed from the B direction.
FIG. 3 is an arrangement configuration diagram of an electric vehicle power supply device according to a second embodiment of the present invention.
FIG. 4 is a side view of an electric vehicle power supply device according to a third embodiment of the present invention.
FIG. 5 is a circuit configuration diagram for explaining the effect of FIG. 4;
6 is a circuit configuration diagram for explaining the effect of FIG. 4;
FIG. 7 is a side view of an electric vehicle power supply device according to a fourth embodiment of the present invention.
FIG. 8 is a plan view of an electric vehicle power supply device according to a fifth embodiment of the present invention.
FIG. 9 is a circuit configuration diagram of a conventional electric vehicle power supply device.
FIG. 10 is a layout diagram of a conventional electric vehicle power supply device.
11 is a side view of FIG. 10 viewed from the direction A. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1a, 1b ... AC reactor, 2, 4 ... Semiconductor unit, 3 ... DC reactor, 5 ... Capacitor, 6 ... Transformer, 7 ... Other electrical goods, 8 ... Input terminal, 9 ... Output terminal, 10 ... Electric vehicle power supply Equipment 11 ... Control box 11a ... Semi-open chamber 11b, 11c ... Sealed room 12a, 12b ... Hanging support 13 ... Wire support 14,14a, 14b, 14c ... Cleat 15 ... Reinforcing material 16 ... Lead Wires 17, 17a ... suspension support, 18 ... connection frame, 19 ... integrated frame, 20 ... adapter, 21 ... positioning support, 22 ... crimp terminal.

Claims (5)

An electric vehicle power supply device in which electrical components for power supply devices such as DC reactors, AC reactors, semiconductor units, capacitors, and transformers are arranged and stored, and a suspension support for vehicle attachment is attached to the longitudinal end surface of the control box. The electrical components such as the reactor and the transformer are arranged outside both ends of the control box and are suspended by a suspension frame attached to the outside of the control box. An electric vehicle power supply device. 2. The electric vehicle power supply device according to claim 1, wherein the electric parts of the scrolls such as the reactor and the transformer are configured to be connected to the control box by a connection frame on the bottom surface thereof. A plurality of scrolls such as reactors and transformers are attached to an integral frame, and the same potential part of the scrolls is connected to the suspension support of the control box. The electric vehicle power supply device according to claim 1. 2. The electric vehicle power supply device according to claim 1, wherein at least two of the scrolls such as the reactor and the transformer have the same height. 2. The electric vehicle power supply device according to claim 1, wherein the electric article of the scroll such as the reactor or the transformer is provided with a positioning support for fixing each lead wire from the scroll.

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