JP7650221B2 - Portable power supply device - Google Patents

Description

Article 30, paragraph 2 of the Patent Act applies (1) Published on the company's website on May 31, 2021 https://www. nichicon. co. jp/new/pdfs/release_20210531a.pdf (2) Published in the company's product catalog on June 17, 2021 (3) Published on the company's website on August 19, 2021 https://www. nichicon. co. jp/products/v21/ (4) Published at the exhibition (3rd International Livestock Materials EXPO) on October 13, 2021 (5) Published at the web exhibition (CEATEC 2021 ONLINE) on October 18, 2021 https://online. ceatec.com/booth/2628 (6) Released on a video ad distribution site on October 4, 2021 https://www.news-tv.jp/_ct/16960816 (7) Released on a video sharing site on October 11, 2021 https://www.youtube.com/watch?v=YT80sO68u9c (8) Sold to the shipping destinations listed in the shipping information list from August 30, 2021 to October 21, 2021

The present invention relates to a portable power supply device that supplies AC power.

One advantage of electric vehicles (including PHEVs) and fuel cell vehicles is that they can be used as DC power sources. A portable power supply device that converts the DC power output by these vehicles into AC power and supplies the AC power to power consumption devices is known, for example, as described in Patent Document 1.

The portable power supply device described in Patent Document 1 includes a trunk box that houses an inverter. The trunk box is made up of a case that has a bottom surface and front, rear, left and right sides of the trunk box, and a lid that has a top surface of the trunk box. On the outer surface of the case that forms the front side surface of the trunk box, there is provided an outlet that outputs AC power output from the inverter, and an outlet cover that protects the outlet from rain, etc.

JP 2018-148665 A

However, the configuration of Patent Document 1 requires high production costs for the portable power supply device, and there is a demand for a simplified configuration to reduce costs, etc.

The present invention was made in consideration of the above circumstances, and aims to provide a portable power supply device with a simpler configuration than conventional devices.

In order to solve the above problems, the portable power supply device of the present invention comprises a power supply connector connected to an external DC power source, an inverter that converts DC power input from the power supply connector into AC power, a power supply cable connecting the power supply connector and the inverter, an outlet that outputs the AC power output from the inverter, and a portable case that stores the inverter, the case comprises a case body having an inverter storage space for storing the inverter, a lid that is rotatably provided with respect to the case body, and a hinge mechanism that connects the case body and the lid, the case body is provided with an inner wall member that separates the inverter storage space, which is the internal space of the case body, from a lid back space, which is the space on the back side of the lid, the power supply connector and the power supply cable are configured to be able to be stored in the lid back space, and the outlet is provided in the inner wall member so as to face the lid back space.

According to the above configuration, the outlet is provided on the inner wall member so as to face the space behind the lid, so that when the case is in the closed state, the outlet is protected from rain and the like by the lid, which houses the power supply connector and the power supply cable. Therefore, since the lid also serves as a cover for protecting the outlet, it is possible to simplify the configuration compared to conventional cases.

In addition, when the case is in an upright position relative to the road surface, the back surface of the lid preferably faces upward in the open state of the case. With this configuration, the power supply connector and the power supply cable can be received by the lid when the case is switched from a closed state to an open state. This makes it easier to remove the power supply connector and the power supply cable from above. In addition, when the case is switched from an open state to a closed state, it makes it easier to store the power supply connector and the power supply cable in the space behind the lid.

It is also preferable that the space behind the lid is provided with a cushioning material shaped to fit the power supply connector. This configuration allows the power supply connector to be stored in the space behind the lid at a desired position and prevents the power supply connector from being damaged.

The case preferably has a first inlet through which the power supply cable passes and a second inlet through which the power cable connected to the outlet passes, as openings that communicate between the external space of the case and the space behind the lid. With this configuration, the case can be closed to protect the outlet when the power supply cable is pulled out to the outside of the case (i.e., when the power supply connector is connected to an external DC power source) and when the power cable connected to the outlet is pulled out to the outside of the case (i.e., when the power consuming device is placed outside the case).

The case preferably has a right side and a left side that face in opposite directions, and one of the first and second inlets is provided on the right side and the other is provided on the left side. With this configuration, the direction in which the power supply cable extends from the case can be reversed to the direction in which the power cable extends, increasing the degree of freedom in arranging the power consumption device connected to the outlet relative to the external DC power source to which the power supply connector is connected.

The inverter further includes an operating unit for operating the inverter, and the operating unit is preferably provided on one of the right and left sides on which the second inlet is provided. With this configuration, the power cable connected to the outlet can be passed through the second inlet and the operating unit can be operated from the same direction, improving the ease of use when supplying power from the outlet to a power consuming device.

The present invention provides a portable power supply device with a simpler configuration than conventional devices.

1 is a schematic configuration diagram of a portable power supply device according to an embodiment of the present invention; FIG. 1 is a perspective view showing the appearance of a portable power supply device according to an embodiment of the present invention, with the trolley case in a closed state. 1A and 1B are external views of a portable power supply device according to the embodiment, in which FIG. 3A and 3B are external views of the portable power supply device according to the embodiment, in which FIG. 4A and 4B are external views of the portable power supply device according to the embodiment, in which FIG. FIG. 2 is a perspective view showing the trolley case according to the embodiment in an open state. FIG. 2 is a plan view showing the trolley case according to the embodiment in an open state. 13A and 13B are explanatory diagrams showing a transport process of the portable power supply device according to the embodiment.

The portable power supply device 1 (hereinafter referred to as "power supply device 1") of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the general configuration of the power supply device 1, and FIGS. 2 to 5 are external views of the power supply device 1.

As shown in FIG. 1, the power supply device 1 includes an input connector 11, an inverter 12, an output connector 13, a startup power connector 14, a control unit 15, a display unit 16, and an operation unit 17. The power supply device 1 converts DC power input from an external DC power source P into AC power and supplies the AC power to a power consumption device C.

The input connector 11 is a connector for connecting the DC power source P and the inverter 12, and in this embodiment, is configured with a power supply connector 42 (see FIG. 6) described later. The inverter 12 is a circuit that converts DC power input from the input connector 11 into desired AC power. The output connector 13 is a connector for connecting the power consumption device C and the inverter 12, and in this embodiment, is configured with a socket 44 (see FIG. 6) described later. The startup power connector 14 is a connector for connecting the DC power source P and the control unit 15, and in this embodiment, is configured with a socket 45 (see FIG. 6) described later.

The control unit 15 is a circuit that drives the inverter 12 and controls the inverter 12 based on the user's operation of the operation unit 17. The display unit 16 is configured to display the operating state of the inverter 12, and in this embodiment is configured with a light-emitting lamp 34 (see FIG. 2) described later. The operation unit 17 is configured with an operation switch for operating the operation of the inverter 12, and is operated by the user. In this embodiment, the power supply device 1 has a plurality of operation units 17, including a start button 31 (see FIG. 2), a stop button 32 (see FIG. 2), an emergency stop button 33 (see FIG. 4(B)), and a frequency switching button 46 (see FIG. 6) described later.

Figure 2 is a perspective view of the power supply device 1. The forward/backward direction X, left/right direction Y, and up/down direction Z indicated by arrows in the figure are linear directions that are perpendicular to each other. Therefore, when the forward/backward direction X and the left/right direction Y are horizontal directions, the up/down direction Z is a vertical direction.

As shown in FIG. 2, the power supply device 1 includes a portable trolley case 20 that houses the inverter 12 and other components. The trolley case 20 includes a case body 21, a lid 22, a hinge mechanism 23 (see FIG. 3), a locking mechanism 24, legs 25, wheels 26, and handles 27 and 28. The trolley case 20 is configured to be switchable between a closed state in which the trolley case 20 is closed and an open state in which the trolley case 20 is open.

When the trolley case 20 is in the closed state, the case body 21 and the lid 22 abut against each other, and the space behind the lid, which will be described later, is closed by the inner wall member 41 (see FIG. 6) and the lid 22, which will be described later. When the trolley case 20 is in the open state, the case body 21 and the lid 22 are separated from each other, the inner wall member 41 faces the external space of the trolley case 20, and the space behind the lid is open.

Figures 3 to 5 are six-sided views of the power supply device 1, showing the trolley case 20 in a closed state, the handle 27 not pulled out, and the handle 28 not raised.

As shown in Figures 3 to 5, the trolley case 20 is formed in a substantially rectangular parallelepiped shape and has a front surface 20A, a rear surface 20B, a right side surface 20C, a left side surface 20D, a top surface 20E, and a bottom surface 20F. When the trolley case 20 is closed and the handle 27 is not pulled out, the dimension of the trolley case 20 in the up-down direction Z is larger than the dimension of the trolley case 20 in the front-rear direction X, and smaller than the dimension of the trolley case 20 in the left-right direction Y.

The trolley case 20 also has openings that connect the external space of the trolley case 20 with the space behind the lid, including a first inlet 20G (see FIG. 4B) through which the power supply cable 43 (see FIG. 6) and the startup power cable (not shown) pass, and a second inlet 20H (see FIG. 4A) through which the power cable (not shown) connected to the outlet 44 (see FIG. 6) passes.

The first inlet 20G is provided on the left side surface 20D of the trolley case 20, and is configured so that when the trolley case 20 is in an upright position, the power supply connector 42 (see FIG. 6) can be connected to the DC power source P when the trolley case 20 is in the closed state. That is, by passing the power supply cable 43 through the first inlet 20G, the trolley case 20 can be switched from the open state to the closed state with the power supply connector 42 connected to the DC power source P. Also, by passing the start-up power cable (not shown) through the first inlet 20G, the trolley case 20 can be switched from the open state to the closed state with the DC power source P connected to the socket 45 (see FIG. 6).

The second inlet 20H is provided on the right side surface 20C of the trolley case 20, and is configured so that when the trolley case 20 is in an upright position, the outlet 44 (see FIG. 6) can be connected to the power consuming device C when the trolley case 20 is in a closed state. In other words, by passing a power cable connected to the power consuming device C through the second inlet 20H, the trolley case 20 can be switched from an open state to a closed state with the power consuming device C connected to the outlet 44.

The case body 21 has an inverter storage space (not shown) for storing the inverter 12 and the control unit 15. The case body 21 constitutes the entire rear surface 20B of the trolley case 20, as well as the right side surface 20C, the left side surface 20D, the top surface 20E, and the bottom surface 20F. The case body 21 has a corner surface 21A as an outer surface on which a start button 31 and a stop button 32, which will be described later, are provided. The corner surface 21A faces upward to the upper right, and is both the top surface 20E and the right side surface 20C of the trolley case 20.

The lid 22 is provided in front of the case body 21 and constitutes the entire front surface 20A of the trolley case 20. The lid 22 is provided so as to be rotatable about an axis parallel to the left-right direction Y provided at the lower end of the trolley case 20. The lid 22 has a back surface 22A (see FIG. 6) that forms a space behind the lid. The back surface 22A of the lid 22 faces an inner wall member 41 (see FIG. 6) described later when the trolley case 20 is in a closed state, and is configured to face upward when the trolley case 20 is in an upright position when the trolley case 20 is in an open state.

The hinge mechanism 23 is provided at the lower ends of the case body 21 and the lid 22, and is disposed on the underside 20F of the trolley case 20. The hinge mechanism 23 connects the case body 21 and the lid 22, and supports the lid 22 so that it can rotate relative to the case body 21.

The locking mechanism 24 is provided at the upper end of the case body 21 and is disposed on the upper surface 20E of the trolley case 20. The locking mechanism 24 is configured to be able to restrict the rotation of the lid 22 relative to the case body 21. The locking mechanism 24 switches between a locked state that restricts the opening of the trolley case 20 and an unlocked state that does not restrict the opening of the trolley case 20.

The legs 25 are provided at the lower end of the case body 21 and are disposed at the front end of the lower surface 20F of the trolley case 20. The legs 25 support the trolley case 20 by contacting the road surface G (see FIG. 8). In this embodiment, the legs 25 are provided integrally with the lower end of the case body 21, and the two legs 25 are provided with a gap between them in the left-right direction Y.

The multiple wheels 26 are provided at the lower end of the case body 21 and are arranged at the rear end of the underside 20F of the trolley case 20. The legs 25 and the wheels 26 are arranged at intervals from each other in the front-rear direction X, and the wheels 26 support the trolley case 20 by contacting the road surface G (see FIG. 8) together with the legs 25. The wheels 26 are arranged rotatable about an axis parallel to the left-right direction Y. In this embodiment, the wheels 26 are provided at the right and left ends of the case body 21, so that the two wheels 26 are arranged at an interval in the left-right direction Y.

The handle 27 is configured to be retractable from the trolley case 20 and is grasped when transporting the trolley case 20 without lifting it. The handle 27 is provided on the case body 21 and is arranged at the rear end of the top surface 20E of the trolley case 20, so that it is arranged above the wheels 26 when the trolley case 20 is in an upright position. In this embodiment, the handle 27 is connected to an extendable rod 27A (see Figures 5(A) and 8) arranged on the rear surface 20B of the trolley case 20, and is configured to be switchable between a state where the handle 27 is pulled out from the trolley case 20 and a state where the handle 27 is not pulled out from the trolley case 20 by extending and retracting the extendable rod 27A in the vertical direction Z.

The handle 28 is grasped when lifting and transporting the trolley case 20. The handle 28 is provided on the case body 21 and is located in the center of the top surface 20E of the trolley case 20. The handle 28 is configured to be rotatable around an axis parallel to the left-right direction Y.

The power supply device 1 also includes a start button 31, a stop button 32, an emergency stop button 33, multiple light-emitting lamps 34, and ventilation holes 35 and 36, which are provided on the outer surface of the trolley case 20.

The start button 31 and the stop button 32 are provided on the case body 21, and are configured to be located on the upper surface 20E of the trolley case 20 when the trolley case 20 is in an upright position. In this embodiment, the start button 31 and the stop button 32 are provided on the corner surface 21A of the case body 21, and are configured to be located at the end of the upper surface 20E of the trolley case 20 and at the upper part of the right side surface 20C of the trolley case 20. The start button 31 and the stop button 32 are configured as push button switches. The start button 31 is an operation unit 17 for starting the conversion and output of electric power, and is configured so that when the start button 31 is operated, the control unit 15 starts the conversion of electric power in the inverter 12 and the output side connector 13 starts the output of electric power. The stop button 32 is an operation unit 17 for stopping the conversion and output of electric power, and is configured so that when the stop button 32 is operated, the control unit 15 stops the conversion of electric power in the inverter 12 and the output side connector 13 stops the output of electric power.

The emergency stop button 33 is provided on the case body 21 and is located at the top of the left side surface 20D of the trolley case 20. The emergency stop button 33 is configured as a push button switch. The emergency stop button 33 is an operation unit 17 for forcibly stopping the conversion and output of power, and is configured so that when the emergency stop button 33 is operated, the control unit 15 forcibly stops the conversion of power in the inverter 12 and the output side connector 13 stops the output of power. The emergency stop button 33 is protected by a button cover 33A to prevent it from being operated unintentionally.

The multiple light-emitting lamps 34 are provided on the case body 21, similar to the start button 31 and the stop button 32. That is, the light-emitting lamps 34 are provided on the corner surface 21A of the case body 21. The light-emitting lamps 34 are the display unit 16 that displays the operating state of the inverter 12 by emitting light.

The vents 35 and 36 are provided in the case body 21 and communicate the internal space of the case body 21 (i.e., the inverter storage space) with the external space. The vent 35 is located on the left side surface 20D of the trolley case 20 and is configured as an exhaust port that exhausts air from the inside of the trolley case 20 to the outside. The vent 36 is located on the rear surface 20B and the bottom surface 20F of the trolley case 20 and is configured as an intake port that draws air from the outside to the inside of the trolley case 20. A fan (not shown) is provided in the internal space of the case body 21 to draw air through the vent 36 and exhaust the air through the vent 35.

Figures 6 and 7 show the trolley case 20 in an open state when the trolley case 20 is in an upright position. The trolley case 20 can be switched from a closed state to an open state by unlocking the locking mechanism 24 and tilting the lid 22 forward.

As shown in Figures 6 and 7, the power supply device 1 is configured to be stored in the trolley case 20 and includes an inner wall member 41, a power supply connector 42, a power supply cable 43, multiple outlets 44, a socket 45, a frequency switching button 46, and a cushioning material 47.

The inner wall member 41 is provided on the case body 21 and separates the inverter storage space, which is the internal space of the case body 21, from the external space of the case body 21. The inner wall member 41 is provided with an outlet 44, a socket 45, and a frequency switching button 46 that face the space behind the lid when the trolley case 20 is closed.

The power supply connector 42 is an input connector 11 that is connected to an electric vehicle or a fuel cell vehicle, and is connected to a battery serving as a DC power source P provided in the electric vehicle or fuel cell vehicle, making it possible to extract power from the battery (DC power source P). The power supply connector 42 is configured to be able to be stored in a specified position in the space behind the lid when the trolley case 20 is in a closed state.

The power supply cable 43 is a flexible electric wire that connects the power supply connector 42 and the inverter 12. The power supply cable 43 is configured to protrude horizontally from the inner wall member 41 when the trolley case 20 is in an upright position. In this embodiment, the power supply cable 43 is configured to protrude to the left from the inner wall member 41. The power supply cable 43 is configured to be able to be wound and stored in the space behind the lid when the trolley case 20 is in a closed state.

The outlet 44 is the output connector 13 to which the power consumption device C is connected, and is connected to the power consumption device C via the power cable by inserting a power plug (not shown) provided at one end of the power cable. The outlet 44 outputs the AC power output from the inverter 12 (i.e., the AC power generated by the inverter 12).

The socket 45 is a startup power connector 14 that is connected to an electric vehicle or a fuel cell vehicle, and is connected to a battery serving as a DC power source P provided in the electric vehicle or fuel cell vehicle, making it possible to extract power from the battery (DC power source P) to start the operation of the inverter 12. The socket 45 is connected to the DC power source P via a startup power cable (not shown) that is connected to a 12V output accessory socket provided in the electric vehicle or fuel cell vehicle. Note that if the electric vehicle or fuel cell vehicle is capable of outputting startup power through the power supply connector 42, it is not necessary to use the startup power cable.

The frequency switching button 46 is configured as a rocker switch. The frequency switching button 46 is an operation unit 17 for selecting the frequency of AC power, and is configured so that when the frequency switching button 46 is operated, the control unit 15 changes the frequency of the power generated by the inverter 12 from one of 60 Hz and 50 Hz to the other.

The cushioning material 47 is attached to the rear surface 22A of the lid 22 and is provided in the space behind the lid. The cushioning material 47 has a shape that allows the power supply connector 42 to fit (i.e., a power supply connector storage section 47A that stores the power supply connector 42) and a shape that allows the power supply cable 43 to be wound around it. The cushioning material 47 also has a cross-shaped cable storage section 47B located to the right of the power supply connector storage section 47A, and the cable for supplying 12V (i.e., the startup power cable) can be stored in the cable storage section 47B.

The power supply device 1 configured as described above is used with the trolley case 20 in an upright position. The upright position is a state in which the trolley case 20 stands upright relative to the road surface G (see FIG. 8) with both the legs 25 and the wheels 26 in contact with the road surface G and supporting the trolley case 20. When the trolley case 20 is in an upright position, the lid 22 can be rotated relative to the case body 21 to switch between an open state and a closed state.

Next, a process of transporting the power supply device 1 will be described with reference to FIG.
8 shows an example of a process for transporting the trolley case 20 in an upright position. First, as shown in Fig. 8(A), the handle 27 is pulled upward from the trolley case 20. Next, by pulling the handle 27 in the horizontal direction H, as shown in Fig. 8(B), the legs 25 are released from the road surface G, and the trolley case 20 switches to a portable position in which it can roll while the wheels 26 are in contact with the road surface G. Then, by pulling the handle 27 in the horizontal direction H in this state, the power supply device 1 can be transported without lifting the trolley case 20.

According to this embodiment, the following effects are obtained.
(1) Since the outlet 44 is provided on the inner wall member 41 so as to face the space behind the lid, when the trolley case 20 is in the closed state, the outlet 44 is protected from rain and the like by the lid 22, which houses the power supply connector 42 and the power supply cable 43. Therefore, since the lid 22 also serves as a cover for protecting the outlet, the configuration can be simplified compared to the conventional configuration.

(2) Because the back surface 22A of the lid 22 faces upward when the trolley case 20 is in the open state, the power supply connector 42 and the power supply cable 43 can be received by the lid 22 when the trolley case 20 is switched from the closed state to the open state. This makes it easier to remove the power supply connector 42 and the power supply cable 43 from above. In addition, when the trolley case 20 is switched from the open state to the closed state, the power supply connector 42 and the power supply cable 43 can be easily stored in the space behind the lid.

(3) The space behind the lid is provided with a cushioning material 47 shaped to fit the power supply connector 42, so that the power supply connector 42 can be stored in the space behind the lid at a desired position and damage to the power supply connector 42 can be prevented.

(4) Since the trolley case 20 has the first line inlet 20G and the second line inlet 20H, the trolley case 20 can be closed to protect the outlet 44 when the power supply cable 43 is pulled out to the outside of the trolley case 20 (i.e., when the power supply connector 42 is connected to an external DC power source P) and when the power cable connected to the outlet 44 is pulled out to the outside of the trolley case 20 (i.e., when the power consumption device C is placed outside the trolley case 20).

(5) One of the first and second inlets 20G and 20H is provided on the right side surface 20C, and the other is provided on the left side surface 20D. This allows the direction in which the power supply cable 43 extends from the trolley case 20 to be reversed from the direction in which the power cable extends, thereby increasing the degree of freedom in the placement of the power consumption device C connected to the outlet 44 relative to the external DC power source P to which the power supply connector 42 is connected.

(6) The start button 31 and the stop button 32 (operation unit 17) are provided on the right side 20C where the second power inlet 20H is provided, out of the right side 20C and the left side 20D. Therefore, the task of passing the power cable connected to the outlet 44 through the second power inlet 20H and the task of operating the start button 31 and the stop button 32 can be performed from the same direction (i.e., the right), improving the ease of use when supplying power to the power consumption device C from the outlet 44.

The present invention is not limited to the above embodiment, and the above configuration can be modified as appropriate. For example, the above embodiment can be modified as follows, or the following modifications can be combined to implement the embodiment.

The size relationship of each dimension of the trolley case 20 in the front-back direction X, the left-right direction Y, and the up-down direction Z may be changed. For example, the dimension of the trolley case 20 in the up-down direction Z may be the same as the dimension of the trolley case 20 in the left-right direction Y.

The configuration and arrangement of the operation unit 17 may be changed. For example, the start button 31 and the stop button 32 may be configured to be located in the center of the top surface 20E of the trolley case 20 in an upright position.

The arrangement of the first wire inlet 20G and the second wire inlet 20H may be changed. That is, the first wire inlet 20G may be provided on a side surface of the trolley case 20 other than the left side surface 20D (e.g., the right side surface 20C), and the second wire inlet 20H may be provided on a side surface of the trolley case 20 other than the right side surface 20C (e.g., the left side surface 20D).

The portable power supply device may be configured using a transportable case other than the trolley case 20. That is, the case that houses the inverter 12 does not need to have wheels 26 and a retractable handle 27.

1 Portable power supply device 12 Inverter 17 Operation unit 20 Trolley case (case)
20C Right side (side)
20D Left side (side)
20G First wire inlet 20H Second wire inlet 21 Case body 22 Lid 22A Back surface 23 Hinge mechanism 31 Start button 32 Stop button 41 Inner wall member 42 Power supply connector 43 Power supply cable 44 Outlet 47 Cushion material G Road surface P DC power source X Front-rear direction Y Left-right direction Z Up-down direction

Claims (5)

a power supply connector connected to an external DC power supply;
an inverter that converts DC power input from the power supply connector into AC power;
a power supply cable connecting the power supply connector and the inverter;
an outlet for outputting the AC power output from the inverter;
a portable case for housing the inverter;
the case includes a case body having an inverter accommodating space for accommodating the inverter, a lid provided rotatably with respect to the case body, and a hinge mechanism connecting the case body and the lid,
The case body is provided with an inner wall member that separates the inverter accommodating space, which is an internal space of the case body, from a lid back space, which is a space on a back surface side of the lid;
the power supply connector and the power supply cable are configured to be able to be stored in the lid rear space,
The outlet is provided on the inner wall member so as to face the lid rear space ,
A cushioning material having a shape into which the power supply connector fits is provided in the space behind the lid.
A portable power supply device comprising: a power supply connector connected to an external DC power supply;
an inverter that converts DC power input from the power supply connector into AC power;
a power supply cable connecting the power supply connector and the inverter;
an outlet for outputting the AC power output from the inverter;
a portable case for housing the inverter;
the case includes a case body having an inverter accommodating space for accommodating the inverter, a lid provided rotatably with respect to the case body, and a hinge mechanism connecting the case body and the lid,
The case body is provided with an inner wall member that separates the inverter accommodating space, which is an internal space of the case body, from a lid back space, which is a space on a back surface side of the lid;
the power supply connector and the power supply cable are configured to be able to be stored in the lid rear space,
The outlet is provided on the inner wall member so as to face the lid rear space ,
Furthermore, the case has a first inlet through which the power supply cable passes and a second inlet through which a power cable connected to the outlet passes, as openings that communicate between an external space of the case and a space behind the lid.
A portable power supply device comprising: 3 . The portable power supply device according to claim 1 , wherein the back surface of the lid faces upward when the case is in an open state and in an upright position relative to a road surface. 4 . The case has a right side surface and a left side surface that face in opposite directions,
The portable power supply device according to claim 2 , wherein one of the first inlet and the second inlet is provided on the right side surface, and the other is provided on the left side surface. An operation unit for operating the inverter,
The portable power supply device according to claim 4 , wherein the operation unit is provided on one of the right side surface and the left side surface on which the second line inlet is provided.

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