JP2018195492A - Portable power supply device - Google Patents

Abstract

To provide a portable power supply device which achieves excellent storage ability and portability.SOLUTION: A portable power supply device 10 includes: (1) a trunk box having a box body 14, a lid body 13 for closure, a traction handle 22 which is provided so as to be drawn, and casters 23 provided at the opposite side of the traction handle 22; (2) a partition wall which partitions a space in the trunk box into a first storage space located close to the casters 23 and a second storage space located close to the traction handle 22; (3) an electric power conversion unit disposed in the first storage space. The first storage space communications with the outside of the box body 14 through a suction port 17 and an exhaust port 18 provided at the box body 14. On the other hand, the second storage space does not communicate with the outside of the box body 14 and the first storage space.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a portable power supply device that converts DC power supplied from a DC power source such as a battery into AC power equivalent to commercial AC power and outputs the same.

  A battery mounted on an electric vehicle (including PHEV) and a fuel cell mounted on a fuel cell vehicle can serve as a DC power source for driving a general power consuming device. As a power supply apparatus that converts DC power output from these DC power supplies into AC power required by a general power consuming device and outputs the same, for example, the one described in Patent Document 1 is known.

  The power supply device described in Patent Document 1 includes a substantially cubic housing that accommodates an inverter and the like, a rear housing portion provided at the rear portion of the housing, and a front housing portion provided at the front portion of the housing. I have. A plug connected to a DC power source such as a battery is accommodated in the rear accommodating portion, and an outlet for outputting AC power is accommodated in the front accommodating portion.

  In addition, the power supply device includes a pulling handle provided at the front portion of the casing and wheels provided at the rear lower portion of the casing. The user can carry the power feeding apparatus to a necessary place by using these.

JP 2016-154404 A

  By the way, since such a type of power supply device is often used only in an emergency in which commercial AC power cannot be used (for example, during a power failure due to a disaster), it does not get in the way in a storage place such as a disaster prevention warehouse. It can be stored as such. However, the conventional power supply device described in Patent Document 1 has a problem that it is difficult to store depending on the shape of the storage space because the posture during storage is limited.

  Furthermore, it is preferable that such a type of power supply device be easily transported to a required place. However, in the above-described conventional power feeding apparatus, since heavy objects such as an inverter are accommodated over the entire cubic housing, the center of gravity during transportation is relatively high, and therefore, transportation on a road surface with unevenness is particularly high. There was a problem that was difficult.

  This invention is made | formed in view of these situations, The place made into the subject is to provide the portable electric power feeder excellent in storage property and portability.

  In order to solve the above-described problems, a portable power supply device according to the present invention includes a box body, a lid that closes the opening of the box body, a tow handle that can be pulled out from the box body, and a tow of the box body. A trunk box having a caster provided on the side opposite to the handle, a partition that divides the space in the trunk box into a first accommodation space near the caster and a second accommodation space near the traction handle, and a first accommodation A power conversion unit disposed in the space, and the first accommodation space communicates with the outside of the box body through an intake port and an exhaust port provided in a portion surrounding the first accommodation space of the box body. The housing space has a configuration in which it does not communicate with either the outside of the box body or the first housing space.

  In this configuration, the power conversion unit is housed in a trunk box having a box body and a lid that closes the opening of the box body. That is, the portable power supply device has the appearance of a trunk box. Therefore, according to this configuration, an arbitrarily selected side surface can be placed on the floor (ground), so the posture during storage is not limited, and the portable power supply device is stored in a posture corresponding to the storage space. can do.

  Moreover, in this structure, the power conversion unit which is a heavy article is arrange | positioned in the 1st accommodation space provided near the caster. Therefore, according to this configuration, the position of the center of gravity during transportation using the pulling handle and the caster is relatively low, and transportation is facilitated.

  The portable power supply device further includes a circuit group including a filter circuit configured to filter the power supplied from the outside and send the power to the power conversion unit, and a control circuit configured to control the power conversion unit. The circuit group may be arranged in the second accommodation space.

  The circuit group including the filter circuit and the control circuit is lighter than the power conversion unit. Therefore, even if such a circuit group is arranged in the second accommodation space, the position of the center of gravity during transportation does not increase so as to impair the ease of transportation.

  In the portable power supply device, the box body has a front surface, a back surface, a right side surface, a left side surface, and a bottom surface, and the traction handle is provided so as to be pulled out from a portion where the right side surface and the bottom surface of the box body intersect. The casters may be provided at a portion where the left side surface and the bottom surface of the box body intersect.

  In this case, (1) the intake port is provided on the front surface of the box body and the exhaust port is provided on the back surface of the box body, and (2) the intake port is provided on the left side surface and the bottom surface of the box body. A configuration in which exhaust ports are provided on the front surface and the back surface of the box body can be employed.

  ADVANTAGE OF THE INVENTION According to this invention, the portable electric power feeder excellent in storage property and portability can be provided.

It is the schematic which shows the usage condition of the portable electric power feeder which concerns on 1st Example. It is a perspective view of the portable electric power feeder which concerns on 1st Example. It is (A) front view, (B) rear view, (C) right side view, and (D) left side view of the portable power supply device according to the first embodiment. It is the (A) top view, (B) front view, and (C) bottom view of the portable electric power feeder which concerns on 1st Example. It is the perspective view which shows the state which opened (A) the cover body of the portable electric power feeder which concerns on 1st Example, and (B) is the perspective view which shows a use condition. It is a front view which shows the state at the time of conveyance of the portable electric power feeder which concerns on 1st Example. (A) The perspective view of the state where the first accommodation space and the second accommodation space are emptied, and (B) the power conversion unit and the like are arranged in the first accommodation space of the portable power supply device according to the first embodiment. It is a perspective view in the state where a circuit group has been arranged in the 2nd accommodation space. It is a block diagram which shows the circuit structure of the portable electric power feeder which concerns on 1st Example. It is a top view sectional view showing an air supply / exhaust course of a portable power supply concerning a 1st example. It is the schematic which shows the usage condition of the portable electric power feeder which concerns on 2nd Example. It is a perspective view of the portable electric power feeder which concerns on 2nd Example. It is (A) front view, (B) rear view, (C) right side view, and (D) left side view of the portable power supply device according to the second embodiment. It is (A) top view, (B) front view, and (C) bottom view of the portable electric power feeder which concerns on 2nd Example. (A) The perspective view of the state where the first accommodation space and the second accommodation space are emptied, and (B) the power conversion unit and the like are arranged in the first accommodation space of the portable power supply device according to the second embodiment. It is a perspective view in the state where a circuit group has been arranged in the 2nd accommodation space. It is a block diagram which shows the circuit structure of the portable electric power feeder which concerns on 2nd Example. It is (A) top view sectional drawing and (B) side view sectional drawing which show the air supply / exhaust path | route of the portable electric power feeder which concerns on 2nd Example.

  Hereinafter, a first embodiment and a second embodiment of a portable power supply device according to the present invention will be described with reference to the accompanying drawings.

[First embodiment]
FIG. 1 shows how the portable power supply device 10 according to the first embodiment of the present invention is used. As shown in the figure, the portable power supply apparatus 10 includes a plug 11 connected to an electric vehicle EV equipped with a battery B serving as a DC power source, a cable 11a associated therewith, and various power consuming devices (in this embodiment). And three outlets 12a, 12b, 12c connected to the power consuming devices La, Lb, Lc1, Lc2). The outlets 12a, 12b, and 12c can output AC power up to 1.5 kW corresponding to commercial AC power. That is, the rated output power of the portable power supply device 10 is 4.5 kW.

  As shown in FIGS. 2 to 4, the portable power supply device 10 includes a box main body 14, a lid body 13 that closes an opening of the box main body 14, a pulling handle 22 that can be pulled out from the box main body 14, It has the appearance of a trunk box having a caster 23 provided on the side opposite to the pulling handle 22 of the box body 14.

  The box body 14 has a front surface shown in FIG. 3A, a rear surface shown in FIG. 3B, a right side surface shown in FIG. 3C, and a left side surface shown in FIG. And the bottom surface shown in FIG. The box body 14 is preferably formed of a resin material having excellent impact resistance, weather resistance, and heat resistance.

  The lid 13 is rotatably connected to the back surface of the box body 14 via a hinge 15. The lid 13 is preferably formed of a resin material having excellent impact resistance, weather resistance, and heat resistance, like the box body 14.

  The pulling handle 22 is provided so as to be pulled out from a portion where the right side surface and the bottom surface of the box body 14 intersect. The caster 23 is provided at a portion where the left side surface and the bottom surface of the box body 14 intersect. The portable power supply apparatus 10 is transported in a posture inclined slightly forward, with the caster 23 grounded, the towing handle 22 pulled out, like a general trunk box (suitcase) used for travel or the like ( (See FIG. 6).

  An outlet cover 16 for protecting the outlets 12a, 12b, and 12c is provided on the front surface of the box body 14. When the outlet cover 16 is opened, outlets 12a, 12b, and 12c appear (see FIG. 5A). The outlet cover 16 can be closed after the connection between the power consuming device (for example, the power consuming device La) and the outlet (for example, the outlet 12a) is completed (see FIG. 5B).

  A louver-like air inlet 17 is further provided in front of the box body 14. In order to prevent raindrops from entering the inside of the box body 14, the intake port 17 may be configured by two louvers that are stacked at different angles, or from the viewpoint of intake efficiency, it is configured by only one louver. May be.

  A louvered exhaust port 18 is provided on the back of the box body 14. Similar to the intake port 17, the exhaust port 18 may be composed of two louvers that are stacked at different angles in order to prevent raindrops from entering the inside of the box body 14, or one from the viewpoint of exhaust efficiency. It may be composed only of louvers.

  In addition, the box body 14 is provided with a front handle 19, a right side handle 20, and a left side handle 21.

  FIG. 5A shows the portable power supply apparatus 10 with the lid 13 opened. As shown in the figure, the plug 11 and the cable 11a are accommodated in a wound state. The cable 11a can be pulled out from the left side surface of the box body 14. The lid 13 can be closed after the cable 11a is pulled out (see FIG. 5B).

  As shown in FIG. 7A, the portable power supply device 10 divides the space in the box body 14 into a first accommodation space 30 near the caster 23 and a second accommodation space 31 near the traction handle 22. And a cable connector 33 provided on the partition wall 32.

  As shown in FIG. 4B, three power conversion units 35, 36, and 37 are arranged in the first accommodation space 30. More specifically, the power conversion units 35, 36, and 37 are arranged so that a fan, which will be described later, faces the intake port 17 and contacts the inner wall of the left side surface of the box body 14. In addition, an exhaust duct 38 is disposed in the first accommodation space 30. The exhaust duct 38 is connected between the power conversion units 35, 36, and 37 and the exhaust port 18.

  As shown in FIG. 2B, a circuit group 39 to be described later is arranged in the second accommodation space 31.

  FIG. 8 shows a circuit configuration of the portable power supply device 10. As shown in the figure, the cable 11 a has one end connected to the plug 11 and the other end connected to the cable connector 33. In other words, the DC power from the battery B is supplied to the circuit group 39 disposed in the second accommodation space 31 via the cable connector 33.

  The circuit group 39 includes a filter circuit, a control circuit, and a terminal board. The filter circuit is configured to filter the DC power supplied via the cable connector 33 and output it to the power conversion units 35, 36, and 37. The terminal board provided in the subsequent stage of the filter circuit is configured to distribute the power filtered by the filter circuit to the three power conversion units 35, 36, and 37. The control circuit is configured to control the operations of the filter circuit and the power conversion units 35, 36, and 37 and monitor the states of the power conversion units 35, 36, and 37.

  The filter circuit, the control circuit, and the terminal board may be composed of a single printed board or a plurality of printed boards. The circuit group 39 may further include a fuse for preventing damage due to overcurrent and various sensors.

  The circuit group 39 and the input terminals of the power conversion units 35, 36, and 37 are connected by a cable that penetrates the through hole 34 with a cable bush formed in the partition wall 32. In addition, illustration of this cable is abbreviate | omitted in FIG.

  The power conversion unit 35 includes an inverter circuit that converts DC power filtered by the filter circuit into AC power corresponding to commercial AC power, and two fans for air-cooling components that constitute the inverter circuit. . The two fans are arranged side by side on one side of the power conversion unit 35. The output terminal of the power conversion unit 35 and the outlet 12a are connected by a cable that passes through one of the through holes 34 with a cable bush formed in the partition wall 32. In addition, illustration of this cable is also omitted in FIG.

  The same applies to the other power conversion units 36 and 37. However, the output terminal of the power conversion unit 36 is connected to the outlet 12b, and the output terminal of the power conversion unit 37 is connected to the outlet 12c.

  FIG. 9 shows an air supply / exhaust path of the portable power supply device 10. As shown in the figure, the first accommodation space 30 communicates with the outside through an intake port 17 and an exhaust port 18 provided in a portion surrounding the first accommodation space 30 of the box body 14. For this reason, when the fans of the power conversion units 35, 36, and 37 are operated, fresh fresh air is taken into the first accommodation space 30 from the intake port 17. The fresh air passes through the power conversion units 35, 36, 37 and the exhaust duct 38 and is finally exhausted from the exhaust port 18.

  On the other hand, no intake port and no exhaust port are provided in a portion surrounding the second accommodation space 31 of the box body 14. Further, a cable bush is attached to a through hole 34 provided in the partition wall 32 that divides the space in the box body 14 into a first accommodation space 30 and a second accommodation space 31. That is, the second storage space 31 does not communicate with either the outside or the first storage space 30. In other words, the second accommodation space 31 is sealed. As a result, the circuit group 39 accommodated in the second accommodation space 31 is protected from raindrops and dust.

  The latter is overwhelmingly larger in the weight of the circuit group 39 including the filter circuit, the control circuit, and the terminal board and the total weight of the power conversion units 35, 36, and 37. For this reason, the center of gravity of the portable power supply device 10 is a low position in the vicinity of the caster 23 when transported in a posture as shown in FIG.

[Second Embodiment]
In FIG. 10, the usage aspect of the portable electric power feeder 50 which concerns on 2nd Example of this invention is shown. As shown in the figure, the portable power supply device 50 includes a plug 51 connected to an electric vehicle EV equipped with a battery B serving as a DC power source, a cable 51a associated therewith, and various power consuming devices (in this embodiment). 6 outlets 52a, 52b, 52c, 52d, 52e, 52f connected to the power consuming devices La, Lb, Lc, Ld, Le, Lf1, Lf2). Each of the outlets 52a, 52b, 52c, 52d, 52e, and 52f can output AC power up to 1.5 kW corresponding to commercial AC power. That is, the rated output power of the portable power supply device 50 is 9.0 kW.

  As shown in FIGS. 11 to 13, the portable power supply device 50 includes a box main body 54, a lid body 53 that closes the opening of the box main body 54, a pulling handle 64 that can be pulled out from the box main body 54, It has the appearance of a trunk box having a caster 65 provided on the opposite side of the box body 54 from the pulling handle 64.

  The box body 54 has a front surface shown in FIG. 12A, a rear surface shown in FIG. 12B, a right side surface shown in FIG. 12C, and a left side surface shown in FIG. And the bottom surface shown in FIG. The box body 54 is preferably formed of a resin material having excellent impact resistance, weather resistance, and heat resistance.

  The lid 53 is rotatably connected to the back surface of the box body 54 via a hinge 55. The lid 53 is preferably formed of a resin material having excellent impact resistance, weather resistance, and heat resistance, like the box body 54.

  The pulling handle 64 is provided so as to be pulled out from a portion where the right side surface and the bottom surface of the box body 54 intersect. Further, the caster 65 is provided at a portion where the left side surface and the bottom surface of the box body 54 intersect. The portable power supply device 50 is transported in a posture inclined slightly forward, with the caster 65 grounded, the tow handle 64 pulled out, like a general trunk box (suitcase) used for travel or the like ( See FIG. 6 for the first embodiment).

  An outlet cover 56 for protecting the outlets 52a, 52b, 52c, 52d, 52e, and 52f is provided on the front surface of the box main body 54. When the outlet cover 56 is opened, outlets 52a, 52b, 52c, 52d, 52e, and 52f appear. As in the first embodiment, the outlet cover 56 can be closed after the connection between the power consuming device (for example, the power consuming device La) and the outlet (for example, the outlet 52a) is completed.

  A front-side exhaust port 57 and a back-side exhaust port 58 are provided on the front and back surfaces of the box body 54. These may have a louver shape as in the first embodiment.

  A left side inlet 59 and a bottom inlet 60 are provided on the left side and the bottom of the box body 54. These may have a louver shape as in the first embodiment.

  In addition, the box body 54 is provided with a front handle 61, a right side handle 62, and a left side handle 63.

  As in the first embodiment, when the lid 53 is opened, the plug 51 and the cable 51a accommodated in a wound state appear. The cable 51 a can be pulled out from the left side surface of the box body 54. The lid 53 can be closed after the cable 51a is pulled out.

  As shown in FIG. 14A, the portable power supply device 50 divides the space in the box body 54 into a first accommodation space 70 near the casters 65 and a second accommodation space 71 near the traction handle 64. And a cable connector 73 provided in the vicinity of the partition wall 72.

  As shown in FIG. 6B, six power conversion units 75, 76, 77, 78, 79, 80 are arranged in the first accommodation space 70. More specifically, the power conversion units 75, 76, and 77 are arranged so that a fan, which will be described later, faces the back side exhaust port 58 and contacts the inner wall of the front and left sides of the box body 54. . Further, the power conversion units 78, 79, and 80 are arranged so that the fan faces the front-side exhaust port 57 and is in contact with the inner wall of the back surface and the left side surface of the box body 54.

  As shown in FIG. 5B, a circuit group 81 described later is arranged in the second accommodation space 71.

  FIG. 15 shows a circuit configuration of the portable power supply device 50. As shown in the figure, the cable 51 a has one end connected to the plug 51 and the other end connected to the cable connector 73. That is, the DC power supplied from the battery B is provided to the circuit group 81 disposed in the second accommodation space 71 via the cable connector 73.

  The circuit group 81 includes a filter circuit, a control circuit, and a terminal board. The filter circuit is configured to filter the DC power supplied via the cable connector 73 and output it to the power conversion units 75, 76, 77, 78, 79, 80. The terminal board provided in the subsequent stage of the filter circuit is configured to distribute the power filtered by the filter circuit to the six power conversion units 75, 76, 77, 78, 79, and 80. The control circuit controls the operation of the filter circuit and the power conversion units 75, 76, 77, 78, 79, 80, and monitors the state of the power conversion units 75, 76, 77, 78, 79, 80. It is configured.

  The filter circuit, the control circuit, and the terminal board may be composed of a single printed board or a plurality of printed boards. The circuit group 81 may further include a fuse for preventing damage due to overcurrent and various sensors.

  The circuit group 81 and the input terminals of the power conversion units 75, 76, 77, 78, 79, 80 are connected by a cable that passes through a through hole 74 with a cable bush formed in the partition wall 72. In FIG. 14, the illustration of this cable is omitted.

  The power conversion unit 75 has an inverter circuit that converts DC power filtered by the filter circuit into AC power corresponding to commercial AC power, and two fans for air-cooling components that constitute the inverter circuit. . The two fans are arranged side by side on one side of the power conversion unit 75. The output terminal of the power conversion unit 75 and the outlet 52 a are connected by a cable that passes through one of the through holes 74 with a cable bush formed in the partition wall 72. In FIG. 14, the illustration of this cable is also omitted.

  The same applies to the other power conversion units 76, 77, 78, 79, 80. However, the output terminal of the power conversion unit 76 is connected to the outlet 52b, the output terminal of the power conversion unit 77 is connected to the outlet 52c, the output terminal of the power conversion unit 78 is connected to the outlet 52d, and the output of the power conversion unit 79 is output. The terminal is connected to the outlet 52e, and the output terminal of the power conversion unit 80 is connected to the outlet 52f.

  FIG. 16 shows an air supply / exhaust path of the portable power supply device 50. As shown in the figure, the first accommodation space 70 includes a left side intake port 59, a bottom side intake port 60, a front side exhaust port 57 and a rear surface provided in a portion surrounding the first accommodation space 70 of the box body 54. The side exhaust port 58 communicates with the outside. For this reason, when the fans of the power conversion units 75, 76, 77 are activated, fresh fresh air is taken into the first accommodation space 70 from the left side intake 59 and the bottom intake 60. Then, the fresh air passes through the inside of the power conversion units 75, 76, and 77 and is finally exhausted from the front side exhaust port 57. Even when the fans of the power conversion units 78, 79, 80 are activated, fresh fresh air is taken into the first accommodation space 70 from the left side intake 59 and the bottom intake 60. The fresh air passes through the power conversion units 78, 79, and 80 and is finally exhausted from the rear side exhaust port 58.

  On the other hand, the portion surrounding the second accommodation space 71 of the box body 54 is not provided with an intake port and an exhaust port. A cable bush is attached to a through hole 74 provided in the partition wall 72 that divides the space in the box main body 54 into a first accommodation space 70 and a second accommodation space 71. That is, the second accommodation space 71 does not communicate with either the outside or the first accommodation space 70. In other words, the second accommodation space 71 is sealed. Thereby, the circuit group 81 accommodated in the second accommodating space 71 is protected from raindrops and dust.

  The latter is overwhelmingly larger in the weight of the circuit group 81 including the filter circuit, the control circuit, and the terminal board and the total weight of the power conversion units 75, 76, 77, 78, 79, and 80. For this reason, as in the first embodiment, the center of gravity of the portable power supply device 50 during transportation is a low position near the caster 65.

[Modification]
The first and second embodiments of the portable power supply apparatus according to the present invention have been described above, but the configuration of the present invention is not limited to these.

  For example, the shapes of the first storage space and the second storage space can be changed as appropriate. However, in this invention, the 1st accommodation space must be arrange | positioned near a caster.

  The positions, shapes, and numbers of the intake and exhaust ports that allow the first accommodation space to communicate with the outside can also be changed as appropriate. Further, the arrangement of the power conversion unit in the first accommodation space can be changed as appropriate in accordance with the change in the intake port and the exhaust port.

  In addition, the detailed configuration of the portable power supply device according to the present invention can be changed as appropriate without departing from the scope of the claims.

10 Portable power supply device (first embodiment)
DESCRIPTION OF SYMBOLS 11 Plug 11a Cable 12a-12c Outlet 13 Cover 14 Box main body 15 Hinge 16 Outlet cover 17 Inlet 18 Exhaust 19 Front side handle 20 Right side handle 21 Left side handle 22 Pulling handle 23 Caster 30 First accommodation space 31 2nd accommodation space 32 Partition 33 Cable connector 34 Through hole 35-37 Power conversion unit 38 Exhaust duct 39 Circuit group 50 Portable electric power feeder (2nd Example)
51 Plug 51a Cable 52a-52f Outlet 53 Cover 54 Box body 55 Hinge 56 Outlet cover 57 Front side exhaust port 58 Back side exhaust port 59 Left side side intake port 60 Bottom side intake port 61 Front side handle 62 Right side handle 63 Left side handle 64 Traction handle 65 Caster 70 First accommodation space 71 Second accommodation space 72 Bulkhead 73 Cable connector 74 Through hole 75-80 Power conversion unit 81 Circuit group B Battery EV Electric vehicle La-Le, Lc1, Lc2, Lf1, Lf2 Power consumption equipment

Claims (5)

A box body, a lid that closes the opening of the box body, a tow handle that can be pulled out from the box body, and a caster that is provided on the opposite side of the box body from the tow handle. A trunk box,
A partition that divides the space in the trunk box into a first accommodation space near the casters and a second accommodation space near the traction handle;
A power conversion unit disposed in the first accommodation space,
The first housing space communicates with the outside of the box body by an air inlet and an exhaust port provided in a portion surrounding the first housing space of the box body,
The portable power feeding device, wherein the second housing space does not communicate with either the outside of the box body or the first housing space. A circuit group including a filter circuit configured to filter the power supplied from the outside and send the filtered power to the power conversion unit; and a control circuit configured to control the power conversion unit;
The portable power supply device according to claim 1, wherein the circuit group is disposed in the second accommodation space. The box body has a front surface, a back surface, a right side surface, a left side surface and a bottom surface,
The pulling handle is provided so as to be pulled out from a portion where the right side surface and the bottom surface of the box body intersect,
The portable power supply device according to claim 1, wherein the caster is provided at a portion where the left side surface and the bottom surface of the box body intersect. The air inlet is provided on the front surface of the box body,
The portable power supply device according to claim 3, wherein the exhaust port is provided on the back surface of the box body. The intake port is provided on the left side surface and the bottom surface of the box body,
4. The portable power supply device according to claim 3, wherein the exhaust port is provided on the front surface and the back surface of the box body.

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