JP3763357B2 - Capacitor hybrid vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technology for mounting a capacitor as a charging / discharging device on a vehicle in a “hybrid vehicle” equipped with an engine and a motor.
[0002]
[Prior art]
As a conventional technique, in Japanese Patent Application Laid-Open No. 11-139168, as shown in FIG. 10, in a bus, a capacitor (first capacitor element group 1 </ b> A arranged on the ceiling, a rear side wall part) The second capacitor element group 1B arranged and the third capacitor group 1C arranged under the floor are mounted.
The bus has a ceiling and a rear side wall portion of the vehicle body, and there are no restricted objects on the ceiling and the rear side wall portion of the vehicle body.
Furthermore, since the form of the ceiling, the rear side wall, and the floor is common, it is possible to make common when arranging the capacitors.
[0003]
However, since trucks have various forms of loading platforms, it is difficult to attach a capacitor to the floor under the loading platform or to the ceiling of a driver's seat (cab) whose area is not sufficient. In addition, there is a problem that it is necessary to individually cope with the shape of the loading platform.
[0004]
[Problems to be solved by the invention]
In view of the conventional problems, it is an object of the present invention to provide a capacitor hybrid vehicle that is easy to mount on a vehicle, is robust and versatile, improves the cooling performance of the capacitor, and has an effect of preventing entrainment.
[0005]
[Means for Solving the Problems]
According to the present invention, an electric double layer capacitor is used as a charge / discharge device, and in a hybrid vehicle equipped with an engine and a motor, a plurality of capacitor modules composed of a plurality of capacitor cells are connected in parallel in the longitudinal direction. The capacitor unit is housed in a module case to form a capacitor unit, a plurality of capacitor units are arranged in a plurality of stages in the vertical direction with gaps, and a frame that holds the front and rear ends of the module case with a bracket provided with an air vent hole A protector having a function of a vehicle entanglement prevention device is provided outside the capacitor unit on the outer side of the capacitor unit, and the protector fixes the front and rear ends to the bracket, and the intermediate portion from the side rail. It is supported by the extended upper stay and lower stay.
[0006]
The mounting position of the capacitor unit (1) is between the cab rear surface (2) and the center of the rear axle (8).
[0007]
When the capacitor assembly is assembled as a unit (1) and the capacitor unit (1) is attached to the side rail (Fs) of the frame, the side rail (Fs) has excellent mountability, and Since it is excellent in strength, it is convenient for mounting.
Furthermore, since the distance from the side rail (Fs) to the outermost side of the vehicle is a similar value in a group of vehicles of the same size class, if it is unitized including the mounting brackets (50, 60), Increased versatility.
In particular, in a long vehicle, there is a space between the cab rear surface (2) and the center of the rear axle (8), which is suitable for mounting.
[0009]
By holding the capacitor unit (1) in a plurality of stages with a gap, the case (20) of the capacitor module (10) loaded with the capacitor cell (9) is suitably cooled, and the loaded capacitor cell (9) To give good performance.
[0014]
Also, an inverter for controlling the current of the capacitor is mounted behind the capacitor unit, and the protector is extended to the back of the inverter.
[0015]
Installing the capacitor current control inverter (5) in the vicinity of the capacitor unit (1) can shorten the wiring and protect the inverter (5) with a common protector (3A) or cover, so that the smallest unit The number can be suppressed.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0017]
First, a first embodiment will be described with reference to FIGS.
The capacitor unit 1 mounting position is the rear portion of the rear axle 8 of the left side rail Fs of the frame, that is, the left rear overhang portion (L1) as shown in FIG.
[0018]
With reference to FIG. 1, the mounting state of the capacitor unit 1 on the side rail Fs will be described in more detail.
Before describing the mounting state, the detailed configuration of the capacitor unit 1 will be described with reference to FIGS. 4 and 5 as well.
[0019]
As shown in FIG. 4, the capacitor unit 1 has three capacitor modules 10 connected in parallel in the longitudinal direction, and the three capacitor modules 10 are arranged in a module case (the portion that appears as a capacitor unit in FIG. 1 is a module case). In consideration of cooling, 20 is mounted in a state in which a predetermined gap is secured.
[0020]
As shown in FIG. 4, the capacitor module 10 is housed in a cell storage container 30 so that a plurality of capacitor cells 9 are alternately stacked with insulating materials (not shown).
[0021]
Here, as schematically shown in FIG. 5, the capacitor cell 9 is stacked in a bag-like case 91 together with a plurality of positive and negative electrodes and an insulator interposed between the positive and negative electrodes.
[0022]
Returning to FIG. 1, the module case 20 is formed with attachment members 20 a on the front and rear sides.
A mounting hole 20b is formed in the mounting member 20a, and the mounting holes 20b are attached to mounting holes (not shown) of the capacitor brackets 50 and 60 through bolts and nuts (not shown).
[0023]
As shown in FIG. 1 and FIG. 3 described later, in the first embodiment, two capacitor units 1 are attached to the capacitor brackets 50 and 60 in a state where a predetermined gap S is secured in the vertical direction.
[0024]
The capacitor brackets 50 and 60 are preferably formed with ventilation holes 50a and 60a for ventilation. The positions of the air vent holes 50 a and 60 a are preferably provided in a region having the same height as the gap S between the two capacitor units 1.
[0025]
A protector 3 including a plurality of bar-shaped horizontal members 31 and, for example, angle steel 32 or vertical members (32, 33) of a bar-shaped body 33, is provided outside the capacitor unit 1 in the following manner. It is attached.
In FIG. 1, symbols T and T intersect to fix the front and rear brackets 50 and 60. Reference symbol C denotes a contactor. Reference numeral 35 denotes an under cover that protects the lower portion of the capacitor unit 1, and is fixed to the lower stay 7, and one end is fixed to the lower surface of the side rail Fs by the dedicated bracket 71.
[0026]
The vertical members 32 made of angle steel at the front and rear ends of the protector 3 are brought into contact with the outer portions 50b and 60b of the front and rear brackets 50 and 60, respectively, and fixed to the brackets 50 and 60 with bolts and nuts (not shown).
[0027]
FIG. 3 shows a YY cross-sectional view of FIG. 1, and in order to more effectively support the protector 3, the upper stay 6 from the upper corner portion of the side rail Fs and the lower stay 7 from the lower corner portion. Are attached by known attachment means so as to extend horizontally. In this case, the upper stay 6 and the upper capacitor unit 1, and the lower stay 6 and the lower capacitor unit 1 have a distance that is not touched even if they vibrate.
[0028]
The upper and lower stays 6 and 7 fix the bar state 33 which is a vertical member of the protector 3 via the mounting brackets 61 and 71, respectively.
It is preferable that the protector 3 and the capacitor unit 1 have a clearance enough to prevent the capacitor unit 1 from being damaged when an obstacle or the like collides with the protector 3 with a predetermined impact force or less.
[0029]
Returning to FIG. 1, a cover 4 that is bent by a plate-like body can be used instead of the protector 3 outside the capacitor unit 1.
The reason why the plate body is bent is to provide the cover with a certain degree of robustness. This is because the cover is intended to prevent human entrainment and it is only necessary to ensure a certain level of robustness.
[0030]
Alternatively, the protector 3 and the cover 4 can be used in combination.
[0031]
In the capacitor hybrid vehicle according to the first embodiment having such a configuration, the assembly of capacitors is integrated as a unit 1, and the capacitor unit 1 is attached to the side rail Fs that is excellent in mountability and excellent in strength. Therefore, installation is easy and durability is also guaranteed.
[0032]
Furthermore, since the distance from the side rail Fs to the outermost side of the vehicle has a similar value in a group of vehicles of the same size, versatility is enhanced if the mounting brackets 50 and 60 are unitized. .
[0033]
By holding the capacitor unit 1 in a plurality of stages (two stages in the figure) with gaps S, the module case 20 of the capacitor module 10 in which the capacitor cell 9 is accommodated is preferably cooled, and the accommodated capacitor cell 9 To give good performance.
[0034]
By combining the function of the entrainment prevention device with the protector 3 for the capacitor unit and / or the cover 4, the number of devices can be reduced, leading to cost reduction.
In particular, when a van body is mounted, in addition to ensuring safety, there is an advantage that the space for advertisement painting is increased by the cover 4.
[0035]
By supporting the protector 3 from above and below the middle part of the protector 3 with the upper and lower support stays 6 and 7, the protector 3 is provided with sufficient strength and rigidity, improving durability and preventing the occurrence of forced vibration. To do.
[0036]
Next, a second embodiment will be described with reference to FIG.
The second embodiment of FIG. 6 differs from the first embodiment of FIGS. 1 to 5 in the mounting position of the side rail Fs in the longitudinal direction.
That is, the first embodiment is mounted on the rear overhang portion L1, whereas the second embodiment is mounted on L2 between the cab rear surface 2 and the rear axle 3 center. This is the same as in the first embodiment. Only the effect which is a difference will be described.
[0037]
Mounting in the space L2 between the cab rear surface 2 and the rear axle 8 center is particularly suitable for mounting in a long-sized vehicle because there is a space between the cab rear surface 2 and the rear axle 8 center.
[0038]
Next, a third embodiment will be described with reference to FIG.
The third embodiment of FIG. 7 is obtained by increasing the vehicle mounting unit U1 of the capacitor unit 1 from 1 to 2 with respect to the first embodiment of FIGS. 1 to 5 and the second embodiment of FIG. This is an embodiment in which the vehicle mounting unit U1 is distributed to the left and right side rails Fs in the region between the cab rear surface 2 and the center of the rear axle 8.
It has a good weight balance between the left and right and is suitable for bodywork that handles large amounts of power.
[0039]
Next, a fourth embodiment will be described with reference to FIG.
The fourth embodiment shown in FIG. 8 is different from the third embodiment shown in FIG. 7 in that two mounting units of the capacitor unit 1 are shown in the left side rail in the region between the cab rear surface 2 and the center of the rear axle 8 in the drawing. This is an embodiment mounted on Fs.
Suitable for bodywork that handles large amounts of power. It is also possible to mount two mounting units U1 on the right side rail Fs.
[0040]
Next, a fifth embodiment will be described with reference to FIG.
In the fifth embodiment of FIG. 9, an inverter 5 for controlling the current of the capacitor is mounted behind the capacitor unit 1 with respect to the first embodiment of FIGS.
A mounting bracket at the front end of the inverter 5 is also used as the rear bracket 60 for the capacitor unit, and a dedicated bracket 70 is prepared as a mounting bracket at the rear end of the inverter 5. The bracket 70 is fixed to the side rail Fs in the same manner as the rear bracket 60.
It is preferable to make the brackets 60 and 70 the same in terms of common parts.
[0041]
The protector 3 </ b> A and / or the cover 4 </ b> A is extended to the rear of the inverter 5. The configurations and structures of the protector 3A and the cover 4A are substantially the same as those of the protector 3 and the cover 4 in the first to fourth embodiments.
[0042]
According to the capacitor hybrid vehicle of the fifth embodiment having such a configuration, the wiring can be shortened by mounting the capacitor current control inverter 5 in the vicinity of the capacitor unit 1, and the inverter 5 can be connected to the common protector 3A and / or Alternatively, since it can be protected by the cover 4A, the number of units can be minimized.
[0043]
As a hybrid vehicle, the vehicle is driven by an engine AND / OR motor (the battery may be charged), so-called “parallel type”, the engine only generates electric power, and it is driven only by the motor as in an electric vehicle (the engine is However, the present invention can be applied to both the parallel type and the series type, regardless of whether the type is a series type.
[0044]
【The invention's effect】
The effects of the present invention are listed below.
(1) Since the capacitor unit is attached to the side rail which is excellent in mountability and excellent in strength, the attachment is easy and the durability is also guaranteed.
(2) If the unit including the mounting bracket is unitized, versatility will increase.
(3) By holding the capacitor unit in a plurality of stages with a gap, the module case is suitably cooled, and the performance of the accommodated capacitor cell is improved.
(4) By sharing the function of the entrainment prevention device with the protector and / or the cover for the capacitor unit, the number of devices can be reduced, leading to cost reduction. In the case of mounting a van body, in addition to ensuring safety, the cover also has the advantage of increasing the space for advertising painting.
(5) By supporting the protector also from the upper and lower intermediate portions of the protector by the upper and lower support stays, sufficient strength and rigidity are given to the protector, the durability is improved and the occurrence of forced vibration is also prevented.
(6) Mounting between the rear surface of the cab and the center of the rear axle is suitable for mounting because there is a space in particular in a long vehicle.
(7) When the vehicle-mounted units are dispersed on the left and right side rails Fs, the left and right weight balance is good, and it is suitable for a bodywork type that handles a large amount of power.
(8) Since the inverter for controlling the current of the capacitor is mounted in the vicinity of the capacitor unit, the wiring can be shortened and the inverter can be protected by a common protector and / or cover, so that the number of units can be minimized.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration of a device according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a mounting layout of a primary view form on a vehicle.
3 is a cross-sectional view taken along the line YY in FIG.
FIG. 4 is a perspective view showing an arrangement when a capacitor module is mounted on a module case.
FIG. 5 is a perspective view illustrating a configuration of a capacitor cell.
FIG. 6 is a diagram showing a mounting layout on a vehicle according to a second embodiment.
FIG. 7 is a view showing a mounting layout on a vehicle according to a third embodiment.
FIG. 8 is a view showing a mounting layout on a vehicle according to a fourth embodiment.
FIG. 9 is a perspective view illustrating a configuration of an apparatus according to a fifth embodiment.
FIG. 10 is a perspective view showing a capacitor mounted state on a bus in the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Capacitor unit 2 ... Cab rear surface 3 ... Protector 4 ... Cover 5 ... Inverter 6 ... Lower stay 7 ... Upper stay 8 ... Rear axle 9 ... Capacitor cell

Claims (2)

  In a hybrid vehicle using an electric double layer capacitor as a charging / discharging device and equipped with an engine and a motor, a plurality of capacitor modules (10) composed of a plurality of capacitor cells (9) are connected in parallel in the longitudinal direction. The capacitor unit (1) is accommodated in the module case (20), and the plurality of capacitor units (1) are arranged in a plurality of stages in the vertical direction with gaps (S), and the air vent holes (50a, 60a) are arranged. The bracket case (50, 60) provided with a) is used to hold the front and rear ends of the module case (20) and are attached to the outer side surface of the side rail (Fs) of the frame. A protector (3) having the function of an entrainment prevention device is provided, and the protector (3) fixes the front and rear ends to the bracket (50, 60). And a capacitor hybrid vehicle characterized in that it is supported by the upper stay (6) and a lower stay (7) which extends the intermediate portion from the side rail (Fs).   The capacitor hybrid vehicle according to claim 1, wherein a capacitor current control inverter (5) is mounted on the rear side of the capacitor unit (1), and the protector (3A) is extended to the rear side of the inverter (5).

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