JP2013045594A - Power supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply device capable of being used for a long period while a plurality of units included therein can be collectively conveyed.SOLUTION: The power supply device 1 of the present invention includes a box shaped main body 2 having an opening 2a formed at one end thereof, and a top lid 4 provided in the main body 2 so that the opening 2a can be opened and closed thereby. A battery 8 capable of being charged and discharged is housed in the main body 2. Further, the power supply device 1 includes an inverter device 5 capable of being housed in the main body 2 and converting DC voltage from the battery 8 into AC voltage to output the AC voltage.

Description

  The present invention relates to a power supply device.

  Demand for emergency power supplies is increasing in preparation for power outages due to earthquakes and disasters.

JP 2009-278832 A

  In particular, there is a demand for a large-capacity emergency power supply that can be used for a long time. An emergency power supply for outputting an AC voltage of 100 V includes various devices such as an inverter device in addition to a storage battery, and it is necessary to transport the plurality of devices together.

  Therefore, an object of the present invention is to provide a power supply device that can be used for a long time and can transport a plurality of devices collectively.

  To achieve the above object, a box-shaped main body having an opening at one end, a lid provided on the main body so that the opening can be opened and closed, and a chargeable / dischargeable battery housed in the main body And an inverter device that can be accommodated in the main body and converts a DC voltage from the battery into an AC voltage and outputs the AC voltage.

A box-shaped main body having an opening at one end, a lid provided on the main body so that the opening can be opened and closed, a battery that can be charged and discharged in the main body, and a battery that can be accommodated in the main body. Inverter device that converts the DC voltage into AC voltage and outputs it, and therefore uses a battery with a relatively large capacity. Even on the ground, AC voltage power can be supplied for a long time.
In addition, since a rechargeable battery is provided, the battery can be charged by connecting a commercial AC power source to the inverter device in an area where commercial AC voltage power is supplied.

  Further, the inverter device can convert a DC voltage from the battery into a rectangular wave AC voltage and output it, and can convert the rectangular wave AC voltage output from the inverter device into a sinusoidal AC voltage, It is preferable that a sine wave adapter capable of outputting a sine wave AC voltage is provided, and the sine wave adapter can be stored in the main body.

  The inverter device can convert the DC voltage from the battery to a rectangular wave AC voltage and output it, and can convert the rectangular wave AC voltage output from the inverter device into a sine wave AC voltage. Since the sine wave adapter which can output is provided and the sine wave adapter can be stored in the main body, the configuration of the entire power supply apparatus can be made compact.

  Moreover, it is preferable that an inverter device fixing portion capable of fixing the inverter device is provided on the outer surface of the lid.

Since the inverter device fixing portion capable of fixing the inverter device is provided on the outer surface of the lid, the operation of the inverter device can be facilitated. Moreover, when the display unit is provided in the inverter device, the display unit can be easily seen.
When the sine wave adapter is accommodated in the main body, the inverter device can be fixed on the inverter device fixing portion and disposed on the outer surface of the lid. For this reason, the outer diameter dimension of a main-body part can be made small.
Also, the inverter device converts the DC voltage from the battery to a rectangular wave AC voltage and outputs it, and can be accommodated in the main body, and converts the rectangular wave AC voltage output from the inverter device into a sinusoidal AC voltage. Since a sine wave adapter that can output a sine wave AC voltage is provided, power of a sine wave AC voltage can be supplied.

  Moreover, it is preferable that this inverter apparatus fixing | fixed part is provided with the latching | locking part which receives the to-be-latched part of this inverter apparatus.

  Since the inverter device fixing portion includes a locking portion that receives the locked portion of the inverter device, the inverter device can be easily fixed.

  Moreover, it is preferable that this inverter apparatus can be used independently in the state isolate | separated from this inverter apparatus fixing | fixed part.

  Since the inverter device can be used independently in a state separated from the inverter device fixing portion, the convenience can be improved.

  Moreover, it is preferable that this battery consists of an in-vehicle lead acid battery.

  Since the battery is composed of an in-vehicle lead storage battery, the battery can be large in capacity.

  Moreover, it is preferable that this inverter apparatus can selectively use this lead acid battery and the battery pack for electric tools.

  Since the inverter device can selectively use a lead storage battery and a battery pack for an electric tool, the lead storage battery or the battery pack for an electric tool can be used as necessary, improving the convenience. Can be planned.

  The inverter device and the lead storage battery are preferably connected by a battery adapter having a connection portion having the same shape as the connection portion of the power tool battery pack.

  Since the connection between the inverter device and the lead-acid battery is made by a battery adapter having a connection portion having the same shape as the connection portion of the battery pack for the electric tool, the attachment portion is provided by providing the attachment portion of one shape in the inverter device. The lead storage battery and the power tool battery pack can be selectively attached.

  In addition, when the inverter device is housed in the main body with the battery pack for the electric tool or the battery adapter connected to the inverter device, it is preferable that the lid cannot close the opening. .

  When the inverter device is housed in the main unit with the battery pack or battery adapter for the power tool connected to the inverter device, the lid cannot be closed, so hydrogen gas is generated from the lead storage battery in the main unit. When this is done, the main body can be prevented from being filled with hydrogen gas. For this reason, it is possible to prevent the hydrogen gas from exploding when the connecting portion includes a fuse and the fuse provided in the connecting portion is blown.

  Further, it is preferable that the main body is provided with a handle that can be gripped for transporting the main body, and the handle is held by a handle holding portion provided on the main body.

  The main body portion is provided with a handle that can be gripped for transporting the main body portion, and the handle is held by a handle holding portion provided in the main body portion, so that the power supply device can be easily moved.

  The handle includes a first handle portion and a second handle portion that each have a joint surface and the joint surfaces are joined and fixed to each other, and the first handle portion and the second handle portion are joined to each other. It is preferable that the joint surface has a halved shape that is plane-symmetric.

  The handle includes a first handle portion and a second handle portion, each having a joint surface, the joint surfaces being joined and fixed to each other, and the first handle portion and the second handle portion are joined to each other. As a battery, a vehicle-mounted battery can be gripped and transported in a state of being housed in the main body even when the handle is manufactured by blow molding. The handle can be as strong as possible.

  The handle is held by the handle holding portion so as to be movable within a predetermined range in a direction connecting one end and the other end of the main body portion, and the handle is in a direction from one end of the main body portion to the other end. A stopper that abuts when the handle is positioned at an edge of the range and when the handle is positioned at an edge of the range in a direction in which the handle is directed from the other end of the main body to the one end; It is preferable that the main body is provided.

  The handle is held by the handle holding portion so as to be movable within a predetermined range in the direction connecting the one end and the other end of the main body, and the handle is attached to the edge of the range in the direction from the one end to the other end of the main body. When the handle is positioned, and when the handle is positioned at the edge of the range in the direction from the other end of the main body to the other end, the main body is provided with a stopper that comes into contact with the handle. Even when the handle is manufactured, it is possible to prevent the handle from being damaged due to the handle coming into contact with a portion other than the stopper at the edge position within a predetermined range when the handle is moved. In addition, by using a press part as the stopper, an inexpensive stopper and a handle that is an inexpensive blow-molded product can be used in combination, and the manufacturing cost for the power supply device can be reduced.

  Further, at least one of a part of the stopper that is in contact with the handle or a part of the handle that is in contact with the stopper is provided with an elastic member. preferable.

  Since at least one of the part of the stopper and the handle abuts, or the part of the handle and the stopper abuts on the stopper, an elastic member is provided. The collision load generated between the stopper and the handle when the handle is forcibly moved in the direction toward the one end can be reduced. For this reason, durability of a handle and a stopper can be improved.

  The handle is disposed on the outer surface of the main body and is movable along the outer surface, and the elastic member is provided to reach a position farther from the outer surface of the main body than the handle. It is preferable.

  Since the elastic member is provided to reach a position farther from the outer surface of the main body than the handle, the main body is overturned, and the portion of the outer surface of the main body where the handle is disposed and the handle are connected to the ground. Even when it is close to the floor, the impact of the elastic member colliding with the ground or the floor can be mitigated, and the impact when the handle comes into contact with the ground or the floor can be reduced, preventing the handle from being damaged. be able to.

  The elastic member is preferably made of a rubber damper.

  Since the elastic member is made of a rubber damper, the elastic member can be made of an inexpensive and simple material.

  Further, the handle has a most protruding portion that protrudes most in the power supply device in a direction from the other end of the main body portion to one end, with one end of the main body portion being vertically downward and the other end of the main body portion being vertical. The center of gravity and the most protruding portion of the power supply device projected on a virtual plane orthogonal to the direction connecting the one end and the other end of the main body portion when the upper side is the upper end It is preferable that the main body is shifted to such an extent that the state in which the other end of the main body is vertically upward cannot be stably maintained.

  The handle has the most protruding portion that protrudes most in the power supply device in the direction from the other end of the main body portion toward the one end, and when the one end of the main body portion is vertically lower and the other end of the main body portion is vertically upper, The center of gravity and the most protruding portion of the power supply device projected onto a virtual plane orthogonal to the direction connecting the one end and the other end of the unit are in a state where one end of the main unit is vertically downward and the other end of the main unit is vertically upward Is not so stable that it can be held stably, so that when the power device is placed on the ground or floor in a positional relationship with one end down and the other end up, Abut. At this time, since only the most protruding portion is in contact with the ground or the floor, it is in an unstable state, the power supply device starts to tilt, and at least a part of the power supply device other than the most protruding portion The power supply device can be tilted until the portion of the contact with the ground or floor. For this reason, even when the battery housed in the power supply device is a lead storage battery, the lead storage battery can be prevented from being held for a long time in an upside down positional relationship, and liquid leakage from the lead storage battery can be prevented. Can be prevented.

  Further, the handle is disposed on the outer surface of the main body and is movable between the retracted position most retracted and the extended position protruding most along the outer surface, and the inverter device is attached to the lid. In the state in which the handle is in the storage position, the upper lid side end of the handle is preferably positioned above the uppermost portion of the inverter device.

  The handle is arranged on the outer surface of the main body and can move between the most retracted storage position and the most extended position along the outer surface. The inverter is attached to the lid and the handle is in the storage position. In this case, the upper lid side end of the handle is positioned above the uppermost portion of the inverter device, so that the state where one end of the main body is vertically lower and the other end of the main body is vertically upper is stably held. Can not be. For this reason, the liquid leakage from a lead acid battery can be prevented more effectively.

  Moreover, it is preferable that the main body portion is provided with a wheel that is supported by the main body portion so as to be rotatable with respect to the main body portion and that can move the main body portion.

  Since the main body is provided with wheels supported on the main body so as to be rotatable with respect to the main body, the power supply device can be easily moved.

  ADVANTAGE OF THE INVENTION According to this invention, the power supply device which can be used for a long time and can convey a some apparatus collectively can be provided. Moreover, since several apparatus can be accommodated in a main body, dustproof and a waterproof effect can be improved.

The front perspective view of the state where the inverter device of the power unit concerning the embodiment of the present invention was stored in the main body Sectional drawing which looked at the state by which the inverter apparatus of the power supply device which concerns on embodiment of this invention was accommodated in the main body from the front Sectional drawing which looked at the state by which the inverter apparatus of the power supply device which concerns on embodiment of this invention was accommodated in the main body from the side The rear view when the handle | steering-wheel of the power supply device which concerns on embodiment of this invention exists in a storage position The rear perspective view in the state where the inverter device of the power unit concerning the embodiment of the present invention was stored in the main body The top view of the state which removed the upper cover and inner cover of the power supply device which concern on embodiment of this invention The figure which shows the detailed position of the thermistor 88 of the power supply device which concerns on embodiment of this invention. The figure which shows the detailed position of the thermal protector of the power supply device which concerns on embodiment of this invention. The elements on larger scale of the battery of the power supply device which concerns on embodiment of this invention Sectional drawing along VII-VII of FIG. 4 of the handle | steering-wheel of the power supply device which concerns on embodiment of this invention The rear view when the handle of the power unit concerning an embodiment of the present invention exists in an extension position Sectional drawing which shows the state which the power supply device which concerns on embodiment of this invention fell to the rear side Sectional drawing which shows the state which the power supply device which concerns on embodiment of this invention fell to the rear side Sectional drawing which shows the state which the power supply device which concerns on embodiment of this invention fell to the front side Sectional drawing which shows the state which the power supply device which concerns on embodiment of this invention reversed in the front side The top perspective view of the upper lid of the power unit concerning an embodiment of the present invention The bottom perspective view of the upper lid of the power unit concerning an embodiment of the present invention. Sectional drawing which looked at the state by which the inverter apparatus of the power supply device which concerns on embodiment of this invention was fixed to the upper cover from the front Sectional drawing which looked at the state by which the inverter apparatus of the power supply device which concerns on embodiment of this invention was fixed to the upper cover from the side The top view of the upper cover of the power unit concerning the embodiment of the present invention The figure which showed only the cross section along XVI-XVI of FIG. 15 of the power supply device which concerns on embodiment of this invention. The perspective view of the inner cover of the power supply device which concerns on embodiment of this invention The top view of the inner cover of the power supply device which concerns on embodiment of this invention The figure which showed only the cross section along XIX-XIX of FIG. 18 of the power supply device which concerns on embodiment of this invention. The perspective view of the battery of the power supply device which concerns on embodiment of this invention The perspective view of the state which removed the upper cover and inner cover of the power supply device which concern on embodiment of this invention The fragmentary sectional view seen from the side of the power unit concerning the embodiment of the present invention The perspective view of the battery plate of the power supply device which concerns on embodiment of this invention The perspective view of the inverter apparatus of embodiment of this invention Sectional drawing which looked at the state by which the inverter apparatus of the power supply device which concerns on the 1st modification of embodiment of this invention was fixed to the upper cover, and the sine wave adapter was accommodated in the main body from the front Sectional drawing which looked at the state where the inverter apparatus of the power supply device which concerns on the 1st modification of embodiment of this invention was fixed to the upper cover, and the sine wave adapter was accommodated in the main body from the side The perspective view of the sine wave adapter of the power supply device which concerns on the 1st modification of embodiment of this invention. The front view of the handle which concerns on the 2nd modification of embodiment of this invention The side view of the handle which concerns on the 2nd modification of embodiment of this invention The rear perspective view of the power unit concerning the 3rd modification of an embodiment of the present invention. The rear perspective view of the main body of the power unit concerning the 3rd modification of an embodiment of the present invention The side view of the main body of the power supply device which concerns on the 3rd modification of embodiment of this invention

  Hereinafter, the structure of the power supply device 1 which concerns on embodiment of this invention is demonstrated based on attached drawing.

  As shown in FIGS. 1 and 2, the power supply device 1 is mainly composed of a main body 2, a handle 3, an upper lid 4, an inverter device 5, an inner lid 6, an adapter 7, and a battery 8. Has been. As shown in FIG. 2, the direction in which the handle 3 extends from the main body 2 is defined as “up”, and the opposite is defined as “down”. Moreover, as shown in FIG. 3, the side where the handle 3 is provided with respect to the main body 2 is defined as the rear, and the opposite is defined as the front. The direction perpendicular to the vertical direction and the front-rear direction is defined as the left-right direction (FIG. 2).

  As shown in FIG. 21, an opening 2a is formed on the upper surface of the main body 2, and the upper lid 4 can open and close the opening 2a. In the main body 2, an inverter device 5, an inner lid 6, an adapter 7, and a battery 8 are accommodated. In FIG. 2 and FIG. 3, the inverter device 5 in which the adapter 7 is mounted on the upper lid 4 is depicted by a dotted line, which indicates that the inverter device 5 can be fixed on the upper lid 4. Yes. Similarly, in FIG. 13 and FIG. 14, the inverter device 5 is depicted by a dotted line on the inner lid 6 and the adapter 7 is depicted by a dotted line in the inner lid 6. This is because the inverter device 5 is depicted by the inner lid 6. The adapter 7 can be accommodated in the inner lid 6. The main body 2 corresponds to the main body of the present invention, the upper lid 4 corresponds to the lid of the present invention, and the battery 8 corresponds to the battery of the present invention.

  As shown in FIGS. 4 and 5, two wheels 21 are provided at both left and right ends of the rear surface of the lower end of the main body 2. On the side surface of the upper part of the main body 2 in the left-right direction, gripping portions 22 that are gripped when the operator lifts the power supply device 1 are provided symmetrically. The detailed configuration of the main body 2 will be described later.

  The handle 3 is provided on the rear surface of the main body 2, and is configured to be movable in the vertical direction between the storage position shown in FIG. 4 and the extended position shown in FIG. Both the handle 3 and the wheel 21 are provided on the back surface of the main body 2, and the operator can easily carry the power supply device 1 by extending the handle 3 to the extended position and tilting the power supply device 1 diagonally. Can do. The detailed configuration of the handle 3 will be described later.

  As shown in FIG. 2, a hinge 41 is provided at the right end of the upper lid 4, and the upper lid 4 is configured to be rotatable with respect to the main body 2 around the hinge 41. The upper lid 4 is fixed to the main body 2 by a latch 42 provided on the main body. The detailed configuration of the upper lid 4 will be described later.

  The inverter device 5 outputs a DC 12V input of the battery 8 as a rectangular wave AC 100V. By inserting a battery pack 5C (battery pack for electric tool, for example, 14.4V) indicated by a dotted line in FIG. 24 into the inverter device 5, the inverter device 5 is removed from the power supply device 1, and the inverter device 5 is used alone as a power source. It can also be used. However, the capacity (3.0 Ah) of the power tool battery pack 5 </ b> C is smaller than the capacity (38 Ah) of the battery 8. The adapter 7 is attached to the inverter device 5, one end of a power cable 56 (described later) is connected to the inverter device 5, and the other end of the power cable 56 is connected to a household 100 V power source, so that the inverter device 5 and the adapter 7 are connected. Thus, the battery 8 can be charged. The inverter device 5 also has a charging function. The detailed configuration of the inverter device will be described later.

  As shown in FIGS. 2 and 3, the inner lid 6 is disposed substantially at the center in the vertical direction of the main body 2 and is configured to accommodate the adapter 7. The inverter device 5 can be placed on the upper surface of the inner lid 6. The detailed configuration of the inner lid 6 will be described later.

  The adapter 7 includes an adapter cable 71 extending from the adapter 7 and a connection portion 72 connected to the inverter device 5. The adapter 7 is electrically connected to the battery 8 via an adapter cable 71. By connecting the adapter 7 to an electric tool (not shown), the power supply device 1 can be used as a 12V DC power source. . Even if the battery 8 is 12V, if a booster circuit or a step-down circuit is provided in the adapter 7, it can be used for, for example, a power tool of 14, 4V or 10, 8V. Moreover, by attaching the adapter 7 to the inverter device 5 and obtaining an output from the inverter device 5, the power supply device 1 can be used as an AC power source of 100V for an electric tool or the like. The connection part 72 is composed of a terminal part 72A, a rail part 72B, and a latch part 72C.

  The battery 8 is disposed in the lower part of the main body 2 and plays a role as a power source for the power supply device 1. In the present embodiment, an in-vehicle lead storage battery is adopted as an example of the battery 8. The battery 8 includes a terminal 81 and is connected to the adapter 7 via the terminal 81 and the adapter cable 71. The detailed configuration of the battery 8 will be described later.

  Four protrusions 23 are provided on the lower surface of the main body 2, and as shown in FIG. 3, when the power supply device 1 is placed on the ground, the four protrusions 23 are in contact with the ground, and the wheel 21 is grounded. And separated. The main body 2 is configured by combining an outer body 24 that defines an outer shell and an inner body 25 that defines a space in the main body 2. The outer body 24 plays a role of absorbing an impact when the power supply device 1 falls. The main body 2 is provided with a cushioning material 2A. Specifically, it is provided between the outer body 24 and the inner body 25. In the present embodiment, the cushioning material 2A is a filler, and urethane is employed as an example. The outer body 24 and the inner body 25 are each made of blow-molded resin. In the present embodiment, considering the possibility of dilute sulfuric acid leaking from the battery 8, polyethylene is adopted for the inner body 25 and the outer body 24.

  Since the buffer material 2A is filled between the outer body 24 and the inner body 25, the battery 8 is hardly affected by the outside air temperature, and the battery 8 and the like can be protected from external impact. Even if the temperature of the battery 8 rises, heat can be released to the outside from the upper lid groove portion 47, the inner lid groove portion 63, and the like, which will be described later, so that the inside of the main body 2 is prevented from becoming high temperature. Can do. Further, even if hydrogen gas is generated from the battery 8, it can be released from the groove portion to the outside.

  The cushioning material 2 </ b> A may not be between the inner body 25 and the outer body 24. That is, as long as the battery 8 can be protected from external force, it may be attached between the inner body 25 and the battery 8 or attached to the inner body 25. Further, in the present embodiment, the inner body 25 and the outer body 24 are blow-molded, but two-layer molding may be used, and an elastomer may be provided as the buffer material 2A on the outer side of the inner body 25 or on the outer side of the outer body 24.

  A hook (not shown) is detachably provided on the outer body 24 so that the adapter 7 or the adapter cable 71 can be temporarily locked. The outer body 24 is further provided with a terminal housing portion (not shown) in a detachable manner, so that the terminal of the adapter 7 can be housed in the terminal housing portion. Thereby, the terminal of the adapter 7 can be prevented from being exposed to the outside.

  A holding portion 31 that holds the handle 3 is provided on the upper rear surface of the outer body 24. The holding part 31 is fixed to the main body 2 by a plurality of bolts or screws 32. A convex portion 24 </ b> A that can come into contact with the handle 3 is provided immediately below the holding portion 31. The holding part 31 corresponds to the handle holding part of the present invention.

  Inside the main body 2, an upper chamber 26, a middle chamber 27, and a lower chamber 28 are respectively defined from above. The upper chamber 26 includes the inverter device 5, and the middle chamber 27 includes the inner lid 6 and the adapter 7. The batteries 8 are disposed in the lower chambers 28, respectively.

  As shown in FIG. 3, the inner body 25 is formed with a plurality of recesses 25 a that are recessed toward the opposing outer body 24. Thereby, a wide space in the main body 2 can be secured, and the rigidity of the inner body 25 can be increased. Furthermore, since the amount of the buffer material 2A to be used can be reduced, the manufacturing cost can be reduced.

  On the lower surface of the inner body 25, a contact portion 25A where the outer body 24 and the inner body 25 are in contact is defined. In the contact portion 25A, the outer body 24 is recessed upward, and the inner body 25 is protruded downward, and they are in contact with each other. The contact portion 25A is a horizontal plane provided over the entire width in the left-right direction of the lower surface of the inner body 25 (FIG. 2) and over a predetermined distance in the front-rear direction (FIG. 3). The contact portion 25A is provided forward from the center in the front-rear direction.

  A drain hole 25b that penetrates the outer body 24 and the inner body 25 is formed at the right end of the contact portion 25A (FIG. 2). As shown in FIG. 3, an inclined portion 25B that is inclined downward by at least 1 ° toward the contact portion 25A is provided before and after the contact portion 25A. Thereby, the water that has fallen on the bottom surface of the main body 2 flows along the inclination of the inclined portion 25B, gathers at the contact portion 25A, and is discharged to the outside from the drain hole 25b.

  As shown in FIG. 3, a battery plate 82 described later is disposed on the lower surface of the inner body 25. In the lower part of the main body 2, a through hole 2 b that penetrates the outer body 24 and the inner body 25 and into which a battery shaft 83 described later is inserted is formed. A detailed configuration will be described later.

  As shown in FIGS. 6A and 21, the inner body 25 is provided with four ribs 25 </ b> C that protrude inward and hold the battery 8. The ribs 25 </ b> C extend in the vertical direction and are provided at the four corners of the cross section of the inner body 25 that forms a substantially rectangular shape of the lower chamber 28. Between the rib 25 </ b> C and the battery 8, an anti-slip member 25 </ b> D that prevents the battery 8 from sliding (displacement) with respect to the inner body 25 is provided. The anti-slip member 25 </ b> D also serves as a cushioning material between the battery 8 and the inner body 25. The inner lid 6 is placed on the four ribs 25C.

  As shown in FIG. 4, the handle 3 includes a substantially U-shaped handle gripping portion 33 gripped by an operator, a contacted portion 34 that contacts the holding portion 31 when the handle 3 is in the extended position, The extending portion 35 connecting the portion 33 and the contacted portion 34 and a reinforcing member 36 parallel to the contacted portion 34 are configured. As shown in FIG. 7, the handle 3 includes a first handle portion 37 having a substantially half-moon cross-sectional shape, and a second handle portion 38 having the same shape as the first handle portion 37. Specifically, the joint surface 37A defined by the substantially half-moon shaped straight line portion of the first handle portion 37 and the joint surface 38A defined by the substantially half-moon shaped straight portion of the second handle portion 38 are not shown. It is formed by fixing with a plurality of screws. As described above, the cross section of the handle 3 has a halved shape that is plane-symmetric with respect to the joint surfaces 37A and 38A. Thus, the strength of the handle 3 can be improved by inexpensive blow molding, but a hollow cylindrical handle may be used if there is no particular problem in strength. The first handle portion 37 and the second handle portion 38 are hollow.

  The abutted portion 34 extends in the horizontal direction, and is provided with a cushioning material 34A over the entire circumference (FIG. 4). The front side (main body 2 side) of the cushioning material 34A is always in contact with the outer body 24 at the storage position. Thereby, rattling of the handle 3 is prevented.

  In the present embodiment, a rubber damper is employed as an example of the cushioning material 34A. The extending portion 35 extends in the vertical direction and is supported by the holding portion 31 so as to be movable in the vertical direction. When the handle 3 is in the extended position (FIG. 8), the cushioning material 34 </ b> A is in contact with the holding portion 31. As shown in FIG. 9A, even when the power supply device 1 falls backward, the cushioning material 34A is grounded first, so that damage to other parts can be prevented. The reinforcing member 36 is a member for reinforcing the handle 3, and is provided so as to close the opening portion of the substantially U-shaped handle gripping portion 33. The cushioning material 34A corresponds to the elastic member of the present invention.

  As shown in FIG. 5, the holding portion 31 includes a handle holding portion 31 </ b> A that holds the handle 3 movably, a contact portion 31 </ b> B parallel to the contacted portion 34, and a first damper 31 </ b> C. . The handle holding part 31A is a metal press part, and is provided in two so as to sandwich the first damper 31C in the left-right direction, and is fixed to the main body 2 with a bolt 32. The contact portion 31B is provided with a second damper 31D that can contact the cushioning material 34A. The second damper 31D can further alleviate the impact of contact between the contacted portion 34 and the contact portion 31B. As shown in FIG. 8, the width W1 in the left-right direction of the contact portion 31B and the second damper 31D is larger than the width W2 in the left-right direction of the contacted portion 34 (more specifically, the distance between the extension portions 35). It is set to be smaller. Thereby, it can prevent that the connection location R of the to-be-contacted part 34 and the expansion | extension part 35 hits the contact part 31B, and is damaged. The second damper 31D corresponds to the elastic member of the present invention. The contact portion 31B also serves as a stopper that restricts the movement of the handle 3.

  As shown in FIG. 9B, the first damper 31 </ b> C is provided at a position farthest away from the main body 2. Even when the power supply device 1 falls backward, the first damper 31C is grounded next to the cushioning material 34A so as to alleviate the impact applied to the main body 2. Therefore, the first damper 31C Damage or the like can be prevented.

  When the handle 3 is in the storage position as shown in FIG. 3, the handle gripping portion 33 protrudes above the upper end of the upper lid 4 or the inverter device 5 (dotted line) fixed to the upper lid 4. The center of gravity G of the power supply device 1 is defined at the position shown in FIG. 3, and the center of gravity G and the handle gripping portion 33 of the handle 3 are separated by a distance L. This distance L is determined to such an extent that the state in which the power supply device 1 is inverted 180 ° cannot be stably maintained. In the present embodiment, since an in-vehicle lead acid battery is adopted as an example of the battery 8, depending on the state of the battery 8, dilute sulfuric acid in the electrolyte may leak from the inside. As shown in FIG. 10A, although the possibility that dilute sulfuric acid leaks from the battery 8 is low when the power supply device 1 falls 90 °, the dilute sulfuric acid may leak when the battery 8 is inverted 180 °. In the present embodiment, since the distance L is determined as described above, as shown in FIG. 10B, the handle 3 is obstructed, and the power supply device 1 cannot be maintained in the 180 ° inverted state. It becomes a state. Therefore, even if the power supply device 1 falls forward vigorously, the dilute sulfuric acid can be prevented from leaking from the battery 8. The handle gripping portion 33 corresponds to the most protruding portion of the present invention.

  The upper lid 4 has a substantially rectangular shape. As shown in FIGS. 11 and 12, the latch plate 43, a wall portion 44 provided on the periphery of the upper lid 4, and a latch engaging portion 45 that can be engaged with the latch 42. And a hinge attachment portion 46 to which the hinge 41 is attached. The upper lid 4 has an upper surface 4A, a flat portion 4B which is a peripheral edge of the upper lid 4 and is not provided with a wall portion 44, and a lower surface 4C. The upper lid 4 further includes an upper lid groove 47 having a substantially U-shaped cross section perpendicular to the vertical direction, a first depression 48 formed on the lower surface 4C, and a second depression adjacent to the first depression 48. 49 are formed. As shown in FIGS. 2 and 3, the upper lid 4 has a hollow interior for weight reduction. The latch plate 43 corresponds to the inverter device fixing portion of the present invention.

  As shown in FIGS. 13 and 14, the upper lid 4 can fix the inverter device 5. As shown in FIG. 11, the latch plate 43 is provided with two engaging portions 43 </ b> A that protrude upwardly at a predetermined distance in the left-right direction. The inverter device 5 is fixed to the upper lid 4 by engaging the engaging portion 43 </ b> A with the engaged portion of the detachable button 53 provided on the inverter device 5.

  The latch plate 43 is fixed to the upper lid 4 with a plurality of screws, and can be removed from the upper lid 4 by removing the screws. FIG. 15 shows a top view of the upper lid 4 with the latch plate 43 removed from the upper lid 4. FIG. 16 shows a cross-sectional view along XVI-XVI in FIG. The upper surface 4A and the flat portion 4B of the upper lid 4 are inclined at least 1 ° downward toward the rear. Thereby, rainwater does not accumulate around the engaging portion 43A, and rainwater can be discharged from a location where the wall portion 44 of the upper lid 4 described later does not exist (flat portion 4B).

  A peripheral edge portion 47A that is slightly higher than the upper surface 4A and the flat portion 4B is provided over the entire periphery of the upper lid groove portion 47. As shown in FIG. 2, the lower surface 4 </ b> C of the upper lid 4 presses the inverter device 5 accommodated in the main body 2 at least at a part other than the part where the first recess 48 and the second recess 49 are formed. doing. Thereby, the inverter device 5 is fixed in the main body 2.

  The wall portion 44 has a substantially U shape on the periphery of the upper lid 4 and is provided so that a substantially U-shaped opening is located on the rear side (handle side). Further, as shown in FIG. 11, on the rear side of the upper lid 4, there is a flat portion 4 </ b> B where the wall portion 44 is not provided in the peripheral portion between the wall portion 44 and the peripheral portion 47 </ b> A. Thereby, when an operator falls the power supply device 1 backward in order to carry the power supply device 1, the water accumulated in the upper lid 4 is actively discharged from the upper lid 4 through the flat portion 4 </ b> B. In addition, since the peripheral edge portion 47A is provided around the upper lid groove portion 47, water can be prevented from entering the main body 2 even if the power supply device 1 is tilted backward. As shown in FIGS. 5 and 11, the height of the wall portion 44 is set to be higher than the height of the engaging portion 43A. Thereby, even when a plate-shaped member falls from above, the member can be received on the upper surface of the wall portion 44, and therefore the engagement portion 43A can be prevented from being damaged. As shown in FIG. 14, the height of the wall 44 is set to be lower than the height of the inverter device 5. Thereby, it is possible to check whether the inverter device 5 is mounted and the state of the display panel 51 without being blocked by the wall portion 44 from the front.

  The latch engaging portion 45 is provided on the left side surface of the upper lid 4 (FIG. 11), and the upper lid 4 is fixed to the main body 2 by engaging with the latch 42. A hinge attachment portion 46 is provided on the right side surface of the upper lid 4 (FIG. 12), and the hinge 41 is attached to the hinge attachment portion 46.

  The upper lid groove portion 47 is formed on the rear surface of the upper lid 4, and the cable of the device accommodated in the main body 2 can be drawn out through the upper lid groove portion 47. As shown in FIG. 11, the upper lid groove 47 is formed on the rear surface of the upper lid 4, and the adapter 7 is attached to the rear side of the inverter device 5. By forming the upper cover groove portion 47 in the vicinity of the adapter 7 being mounted, the cable of the adapter 7 and the like can be easily pulled out of the main body 2 and the exposure of the wiring of the adapter 7 can be minimized. This makes it possible to collect wiring in a compact manner. When the inverter device 5 is fixed to the upper lid 4, the adapter cable 71 passes through the upper lid groove 47. Therefore, the cross-sectional area of the cross section perpendicular to the vertical direction of the upper lid groove portion 47 is set to be sufficiently larger than the cross-sectional area of the adapter cable 71. As shown in FIGS. 12 and 16, a curved surface portion 47 </ b> B is provided below the upper lid groove portion 47. The curvature of the curved surface portion 47B is set to be larger than the curvature of other portions (for example, the connection portion between the upper surface 4A and the wall portion 44). Thereby, the cable passing through the upper lid groove 47 is prevented from being caught by the upper lid groove 47.

  As shown in FIG. 2 and FIG. 3, the first recess 48 is recessed inside the upper lid 4 along the shape of a storage portion 54 of the inverter device 5 described later that protrudes upward. Thereby, the first recess 48 can be engaged with the accommodating portion 54. When comparing the inverter device 5 indicated by the dotted line in FIG. 14 with the inverter device 5 indicated by the solid line, the adapter device 7 is attached to the inverter device 5 indicated by the solid line. 7 protrudes. Even if the inverter device 5 is placed on the inner lid 6 with the adapter 7 attached to the inverter device 5 and the upper lid 4 is to be closed, the lower surface 4C around the first recess 48 comes into contact with the adapter 7 and closes the upper lid 4. I can't.

  The battery 8 has a configuration in which hydrogen gas is discharged from a valve disposed in the center when in use. In order to prevent this hydrogen gas from accumulating inside the main body 2, in this embodiment, a U-shaped upper lid groove portion 47 is provided on the rear surface of the upper lid 4 so that the hydrogen gas can be easily discharged to the outside. Yes. On the other hand, the control circuit of the adapter 7 is configured such that a fuse installed in the control circuit of the adapter 7 is blown when the terminal of the adapter 7 is mixed with foreign matter or a short circuit occurs due to a failure of the attached device. Since sparks are scattered when the fuse is blown, the inverter device 5 is arranged in the housing portion 54, the adapter 7 is connected to the inverter device 5 and the upper cover 4 is closed, and the operator However, when the product is used in a state where the upper lid groove portion 47 is closed, there is a concern that sparks may be scattered in the upper chamber 26 in a sealed state. For this reason, when the inverter apparatus 5 is arrange | positioned in the accommodating part 54 in the state which connected the adapter 7, it was set as the structure which the upper cover 4 does not close.

  In the present embodiment, in order to prevent the main body 2 from being filled with hydrogen gas, the inverter device 5 is disposed on the inner lid 6 and the adapter 7 or the battery pack 5C for the electric tool is attached to the inverter device 5. In this state, the upper lid 4 cannot be closed. As a result, even when the product is used in a state where the ventilation opening formed by the upper lid groove portion 47 is blocked, the inverter device 5 cannot be used in a state where the product is disposed in the accommodating portion 54, so that a problem due to hydrogen gas can be prevented. In addition, since the battery 8 and the inverter apparatus 5 are interrupted | blocked when a fuse blows, in that state, hydrogen gas is not generated. Hydrogen gas is generated mainly when the battery 8 is charged. Further, if the adapter 7 is left attached to the inverter device 5, the battery 8 is consumed by the circuit of the inverter device 5, but the battery 8 is wasted by not closing the upper lid 4 with the adapter 7 attached. Power consumption can be suppressed.

  The second recess 49 is formed so as to be adjacent to the first recess 48 and is provided to increase the rigidity of the upper lid 4.

  The inverter device 5 is accommodated in the main body 2 while being sandwiched between the upper lid 4 and the inner lid 6. As shown in FIG. 24, the inverter device 5 includes a display panel 51 that displays the state of the inverter device 5, an output cable 52, an attachment / detachment button 53, an adapter 7 or a battery pack 5C for an electric tool indicated by a dotted line. A housing portion 54 to be housed, a power input portion 55 that receives external input (FIG. 3), a power cable 56 that is detachably attached to the power input portion 55, and a band locking portion 57. Yes. In the inverter device 5, a side protrusion 5 </ b> A that protrudes laterally and can be engaged with the inner lid 6, and a front protrusion 5 </ b> B that protrudes forward and engageable with the inner lid 6 are defined. The connection part 72 of the adapter 7 to the inverter device 5 has the same shape as the battery pack 5C for electric tools. As a result, the inverter device 5 does not need to be provided with a connection portion corresponding to each of the adapter 7 and the battery pack 5C for the electric power tool, so that the size of the inverter device 5 is not increased.

  The display panel 51 is provided with an LED lamp. Depending on whether the LED lamp is lit or blinking, the operator uses the battery 8 as a power source, is charging the battery 8, or is connected to the power supply device 1. It is possible to determine whether an abnormality has occurred. From the output cable 52, the DC voltage input from the battery 8 or the DC voltage input from the power tool battery pack 5C through the adapter 7 is output as an AC voltage of 100V.

  The attachment / detachment buttons 53 are provided at both ends in the left-right direction, and the attachment / detachment to the upper lid 4 of the inverter device 5 can be performed by pressing the attachment / detachment buttons 53. The inverter device 5 is fixed to the upper lid 4 by engaging the engaging portion 43 </ b> A of the latch plate 43 and the engaged portion of the detachable button 53. The band locking portions 57 are provided at both ends of the front portion of the inverter device 5 in the left-right direction, and can lock a shoulder band (not shown). Thereby, the inverter device 5 can be used independently by taking out the inverter device 5 from the main body 2 and locking the shoulder band to the band locking portion 57. At this time, if the power tool battery pack 5C is used as the power source of the inverter device 5, the portability can be improved. Even when the battery 8 is desired to be used via the adapter 7, if the inverter device 5 is removed from the upper lid 4 and carried by a shoulder band, an electric tool such as a driver drill or a battery pack 5C for an electric tool is provided on the upper surface of the upper lid 4. Can be mounted, so the usage can be expanded.

  The inner lid 6 is disposed in the middle chamber 27 and divides the upper chamber 26 and the lower chamber 28. As shown in FIG. 17, the inner lid 6 has a peripheral wall 61, and a bottom surface 6A is defined. An adapter housing portion 62 for housing the adapter 7 is formed at the center of the inner lid 6, and an inner lid groove portion 63 is formed in the rear peripheral wall 61 (FIG. 18). As shown in FIGS. 2 and 3, the inner lid 6 has a hollow interior for weight reduction. In order to support the heavy battery 8 (15 kg), the main body 2 is filled with the cushioning material 2A between the outer body 24 and the inner body 25 to increase rigidity, but the adapter 7 is light in weight ( 1 kg), the adapter 7 can be supported even if the inside of the inner lid 6 is hollow.

  The bottom surface 6A is a horizontal surface, and two through holes 6a penetrating the bottom surface 6A in the vertical direction are formed. The two through holes 6a are located in the vicinity of the right peripheral wall 61 and in the vicinity of the left peripheral wall 61 with a predetermined distance therebetween. The upper chamber 26 and the lower chamber 28 communicate with each other through two through holes 6 a and an inner lid groove 63. The two through holes 6 a function as drain holes for draining water accumulated in the adapter housing portion 62, and also serve as vent holes for draining hydrogen gas generated from the battery 8. Thereby, it is possible to prevent water from being accumulated in the adapter housing portion 62 and to prevent the hydrogen gas generated from the battery 8 from filling the lower chamber 28.

  On the upper surface of the front, right, and left peripheral walls 61, a receiving portion 64 in which the peripheral wall 61 is recessed downward is provided, and the inverter device 5 can be placed on the receiving portion 64. The side protrusion 5A of the inverter device 5 is placed on the receiving portion 64 in the left-right direction, and the front protrusion 5B of the inverter device 5 is placed on the front receiving portion 64. Thereby, in a state where the inverter device 5 is placed on the inner lid 6, the inverter device 5 cannot move in the front-rear direction and the left-right direction on the inner lid 6. The rear peripheral wall 61 is provided with a cable receiving portion 65 that is recessed downward. The cable receiver 65 is provided to support the output cable 52 and the like extending from the back surface of the inverter device 5 when the inverter device 5 is placed. That is, the cable receiving portion 65 is provided on the peripheral wall 61 in the direction in which each cable extends when the inverter device 5 is placed on the inner lid 6.

  A first curved surface portion 66 is provided at a connection portion between the cable receiving portion 65 and the inner lid groove portion 63 provided on the rear peripheral wall 61. In the first curved surface portion 66, the curvature of the bottom surface of the cable receiving portion 65 and the side surface connecting the rear peripheral wall 61 and the inner lid groove portion 63 is set large. Thereby, when the adapter 7 is accommodated in the adapter accommodating portion 62, the adapter cable 71 can be prevented from being caught on the peripheral wall 61.

  The adapter storage portion 62 is provided at a substantially central portion of the inner lid 6 when viewed from above (FIG. 18), and is positioned below the receiving portion 64 (FIG. 17). The adapter storage unit 62 has a volume capable of storing a part of the adapter 7 and the adapter cable 71. Thereby, the adapter 7 can be accommodated in the adapter accommodating part 62 in the state which mounted the inverter apparatus 5 on the inner cover 6 (FIG. 2). Further, when the adapter 7 is not accommodated in the adapter accommodating part 62 because the adapter 7 is attached to the inverter device 5 or the like, the battery pack 5C for an electric tool or the like having a size that can be accommodated in the accommodating part 62 May be accommodated. Thereby, when the power supply device 1 is transported, devices other than the power supply device 1 can be transported together, so that the transportability can be improved.

  As shown in FIG. 18, the inner lid groove portion 63 has a substantially U shape in plan view, and the adapter cable 71 accommodated in the adapter accommodation portion 62 can be pulled out through the inner lid groove portion 63. As shown in FIG. 18, the inner lid groove 63 is formed in the rear peripheral wall 61. As shown in FIG. 3, the battery 8 is also disposed in the lower chamber 28 so that the terminal 81 is on the rear side. By forming the inner lid groove 63 on the same side as the side where the terminal 81 is disposed, when the adapter 7 is accommodated in the adapter accommodating portion 62, the amount of the adapter cable 71 routed can be minimized.

  As shown in FIG. 19, a second curved surface portion 63A is provided at the periphery of the inner lid groove portion 63 at a portion connecting the bottom surface 6A and the inner lid groove portion 63, and a third curved surface portion 63B is provided immediately below the second curved surface portion 63A. It has been. The curvatures of the second curved surface portion 63A and the third curved surface portion 63B are the same, and are set larger than the curvatures of the other portions (for example, the peripheral wall 61 and the bottom surface 6A). The curvatures of the second curved surface portion 63A and the third curved surface portion 63B are set to be larger than the curvature of the curved surface portion 47B. This is because the inner cover 6 is located immediately above the battery 8, so that the adapter cable 71 is more likely to be caught in the inner cover groove 63.

  As shown in FIG. 3, the holding portion 31 is located behind and directly above the inner lid 6. In the holding part 31, the distance between the outer body 24 and the inner body 25 is close to reinforce the fixation of the handle holding part 31A to the main body 2. Thereby, the cable housing space 6 b is defined by the inner body 25, the upper lid 4, the inverter device 5, and the inner lid 6. More specifically, the cable housing space 6 b is defined at a position facing the inverter device 5 in a state where the inverter device 5 is placed on the inner lid 6. In the cable storage space 6b, an output cable 52 and an adapter cable 71 extending from the back surface of the inverter device 5 when the inverter device 5 is placed on the inner lid 6 are stored. Thereby, since it is not necessary to project the outer body 24 etc. in order to form the space which accommodates a cable, it can suppress that the power supply device 1 enlarges.

  As shown in FIGS. 20 to 22, the battery 8 includes a substantially plate-shaped battery plate 82 mounted on the main body 2, a battery shaft 83 extending upward from both left and right ends of the battery plate 82, and a butterfly. It is fixed to the main body 2 by a support plate 85 fixed to the battery shaft 83 by a bolt 84 and a bolt 86 screwed to one end of the battery shaft 83. An anti-slip member 82B is provided between the battery plate 82 and the battery 8 (FIG. 22). In the present embodiment, a rubber damper is employed as an example of the anti-slip member 82B. The battery plate 82 is made of metal, and as shown in FIG. 23, two restriction portions 82A are provided by folding the end portions in the front-rear direction upward. The distance D1 between the two restricting portions 82A is set slightly larger than the distance D2 (FIG. 22) in the front-rear direction of the battery 8. Thereby, the movement of the battery 8 in the front-rear direction is restricted. A shaft through hole 82a through which the battery shaft 83 is inserted is formed at a position closer to the front than the center in the front-rear direction of the battery plate 82. Two shaft through holes 82a are formed at a predetermined distance in the left-right direction. The battery shaft 83 passes through the shaft through hole 82 a and the through hole 2 b formed in the main body 2 and is fixed to the main body 2 by the bolt 86. The battery 8 can be easily positioned when placed on the battery plate 82 by the restricting portion 82A of the battery plate 82 and the battery shaft 83.

  As shown in FIG. 3, the battery 8 is supported by the battery shaft 83 at a position closer to the front than the center of the lower chamber 28 in the front-rear direction. When the outer body 24 and the inner body 25 are blow-molded, it is necessary to form a recess that accommodates the wheel 21, but when the recess and the contact portion 25A are brought close to each other due to molding problems, There was a problem that could not be held. On the other hand, when a valve for releasing hydrogen gas is arranged at the center of the battery 8 and the installation position of the battery plate 82 is set at the center of the battery 8, there is a problem that the battery plate 82 blocks the valve. In order to avoid these, the size of the main body 2 may be simply increased. However, as in the present embodiment, the distance between the recess for housing the wheel 21 and the contact portion 25A can be sufficiently maintained. By supporting the battery 8 from the center in the front-rear direction toward the front by the battery shaft 83, the main body 2 can be made compact and the cost can be reduced.

  As shown in FIG. 2, the battery 8 is fixed to the left side of the main body 2 of the lower chamber 28 from the center in the left-right direction. Since the upper lid 4 rotates about the hinge 41 as a fulcrum, when the upper lid 4 is opened, the center of gravity of the power supply device 1 is shifted to the right. Even when the upper lid 4 is opened, the battery 8 is fixed to the left from the center in order to keep the balance of the center of gravity of the power supply device 1 at a position close to the center in the left-right direction. As a result, a space is created on the right side of the battery 8, and a drain hole 25b is formed in the contact portion 25A of the space.

  As shown in FIG. 2, the movement of the battery 8 in the left-right direction is restricted by a battery shaft 83 that extends upward from both ends in the left-right direction. As shown in FIG. 22, an elastic material 87 for protecting the surface of the battery 8 and preventing the battery 8 from slipping is provided between the support plate 85 and the battery 8. When the support plate 85 and the elastic material 87 are pressed against the battery 8 by the butterfly bolt 84, the battery 8 is restricted from moving in the vertical direction. Thereby, the battery 8 is completely fixed to the main body 2. The support plate 85 is provided with an insulator 85A over the distance D3 in the width direction (FIG. 20). As shown in FIG. 6A, the distance D3 is set longer than the distance D4 between the terminals 81. Thereby, when exchanging the battery 8, it can suppress that the support plate 85 contacts the terminal of the battery 8, and short-circuits.

  As shown in FIG. 6B, a cable 71 </ b> A and a thermistor cable 88 </ b> A extend from the adapter cable 71 to each terminal 81. A crimp terminal 71B is provided at the tip of the cable 71A. The crimp terminal 71B includes a terminal engaging portion 71C that engages with the terminal 81, and a cable receiving portion 71D into which the cable 71A is inserted. By connecting the terminal engaging portion 71 </ b> C and the terminal 81, the adapter 7 and the battery 8 are electrically connected. In the state shown in FIG. 6A, the terminal 81 is positive on the right side and negative on the left side. Since the terminal engaging portion 71 </ b> C is fixed to the plus terminal 81 by the bolt, it is possible to reliably prevent the thermistor 88 from being detached from the battery 8 due to vibrations or the like generated during transportation of the power supply device 1.

  A thermistor 88 as temperature detecting means is provided on the crimp terminal 71B in the vicinity where the plus terminal 81 and the cable 71A are engaged. As shown in FIG. 6B, in the state where the thermistor 88 is fixed to the tip of the thermistor cable 88A, the thermistor 88 and the thermistor cable 88A are inserted into the cable receiving portion 71D, and the corresponding portion is crimped and fixed. At this time, epoxy is applied to the inner peripheral surface of the cable receiving portion 71D, and the thermistor 88 is prevented from being damaged by pressure bonding. The thermistor cable 88A is connected to the adapter 7, and the adapter 7 can detect the temperature of the battery 8.

  As shown in FIG. 6D, two thermal protectors 89 are fixed to the negative terminal 81 by bolts. The cable of the thermal protector is connected to the adapter 7 so that a battery abnormality can be detected. As shown in FIG. 6C, the two thermal protectors 89 are held by a copper holder 90 and fixed to the copper holder 90 by silicon 89A. The copper holder 90 is fixed to the negative terminal 81 of the lead-acid battery 7 with a bolt. One thermal protector 89 is disposed in the output path of the battery 8 and the cigar socket provided in the adapter 7 and capable of outputting DC 12V. The other thermal protector 89 is arranged on the charging path of the battery 8 and the power supply path to the inverter device 4.

  The thermal protector 89 is opened when the battery temperature becomes high (for example, 65 ° C. or higher) due to battery abnormality or the like, and the above-described path is blocked. Thereby, charging / discharging can be stopped at the time of battery abnormality. Usually, the temperature of a storage battery does not increase so much even if it is used continuously for a long time. However, when used in a high temperature or low temperature environment, battery performance degradation or battery failure may occur. For this reason, in this invention, it is set as the structure which provided the use condition regarding temperature. As a temperature control configuration, a thermistor 88 is provided for temperature control of power supply to the inverter device 4 side, and two thermal protectors are provided for output control to the cigar socket plug and temperature protection during charging.

  For the purpose of improving the accuracy of temperature control, one thermistor 88 is directly attached to the plus terminal of the battery 8 and two thermal protectors are directly attached to the minus terminal 81. The two thermal protectors 89 are directly attached to the negative side terminal 81, and the two thermal protectors 89 are directly bonded to the copper holder with silicon so that the temperature can be accurately read. The terminal is fixed with nuts (bolts). As a result, it is possible to prevent the thermal protector 89 and the thermistor 88 from being dropped or disconnected due to vibrations or the like generated during transportation, and the temperature control accuracy can be improved.

  As shown in FIG. 6A, after the end of the adapter cable 71 is fixed to the terminal 81, it is fixed to the support plate 85 by a binding band. As a result, a load is applied to a portion where the adapter cable 71 is connected to the terminal 81 to prevent the portion from being damaged or cut.

  On the upper surface of the battery 8, a plurality of gas vent holes 8 a for extracting the hydrogen gas from the battery 8 are formed. The support plate 85 is provided at a position shifted from the gas vent hole 8a.

  A first modification of the present embodiment is shown in FIGS. In the first modification of the present embodiment, a sine wave adapter 9 is placed on the inner lid 6, and the inverter device 5 is fixed to the upper lid 4.

  The sine wave adapter 9 is a device capable of converting a rectangular wave AC voltage output from the inverter device 5 into a sine wave AC voltage. By connecting the output cable 52 of the inverter device 5 to the sine wave adapter 9 and obtaining an output from the sine wave adapter 9, the power supply device 1 can be used as a 100V sine wave AC power source.

  As shown in FIG. 27, the sine wave adapter 9 includes an engagement portion 91 that can be engaged with the inverter device 5, a display portion 92 that displays a setting state of the sine wave adapter 9, and an output frequency of the sine wave adapter 9. A setting unit 93 for setting, an output cable 94, and an input unit 95 (FIG. 26) for receiving external input are provided. The sine wave adapter 9 is defined with a side protrusion 9 </ b> A that protrudes laterally and engageable with the inner lid 6, and a front protrusion 9 </ b> B that protrudes forward and engages with the inner lid 6. The engaging portion 91 has substantially the same shape as the engaging portion 43A provided on the latch plate 43, and protrudes upward. The operator can attach and detach the inverter device 5 to and from the sine wave adapter 9 by operating the attach / detach button 53 provided on the inverter device 5. As a result, the inverter device 5 and the sine wave adapter 9 can be carried and the usage can be expanded.

  The display unit 92 is provided with two LED lamps. When the setting unit 93 is set to 50 Hz, one LED lamp is lit, and when the setting unit 93 is set to 60 Hz, the other LED lamp is lit. The LED lamp lights up. An insertion plug 94A is provided at the tip of the output cable 94. An output from the inverter device 5 is input to the input unit 95.

  The cable housing space 6b accommodates an output cable 94 extending from the back surface of the sine wave adapter 9 when the sine wave adapter 9 is placed on the inner lid 6. The side protrusion 9A of the sine wave adapter 9 is placed on the receiving part 64 in the left-right direction, and the front protrusion 9B of the sine wave adapter 9 is placed on the front receiving part 64. Thereby, in a state where the sine wave adapter 9 is placed on the inner lid 6, the sine wave adapter 9 cannot move in the front-rear direction and the left-right direction on the inner lid 6.

  In the state shown in FIG. 25, when the sine wave adapter 9 is placed on the inner lid 6 at the maximum in the upper lid groove portion 47, the adapter cable 71 and the inverter device 5 are connected to the sine wave adapter 9. There is a possibility that three cables of the output cable 52 and the output cable 94 output from the sine wave adapter 9 pass. The cross section perpendicular to the vertical direction of the upper lid groove portion 47 has a cross sectional area that allows the three cables to pass therethrough.

  A second modification of the present embodiment is shown in FIGS. 28A and 28B. In the second modification of the present embodiment, the handle 3 is provided with a pressing portion 139. In the above-described embodiment, the member on the front side (main body 2 side) of the cushioning material 34A is in contact with the outer body 24 to prevent the handle 3 from rattling, but in the second modification example, The pressing portion 139 contacts the outer body 24 to prevent the handle 3 from rattling.

  Two pressing portions 139 are provided in each extending portion 35 at a predetermined distance in the vertical direction, and the entire handle 3 is provided with four pressing portions 139. As shown in FIG. 28B, the pressing portion 139 protrudes forward (on the main body 2 side). When the handle 3 is in the storage position, all four pressing portions 139 come into contact with the main body 2. Thereby, since the handle | steering-wheel 3 and the outer body 24 contact | abut at four places, the shakiness of the handle | steering-wheel 3 can be prevented reliably. When the handle 3 is in the extended position, only the lower two pressing portions 139 are in contact with the outer body 24. Thereby, rattling of the handle 3 can be prevented even when the handle 3 is pulled out.

  The handle grip 33 is provided with a rubber grip 133 so that an operator can easily grip the handle grip 33.

  A third modification of the present embodiment is shown in FIGS. In the above-described embodiment, the contact portion 31B is employed as the stopper of the handle 3. However, in the third modification, the convex portion 224A serves as a stopper.

  In the third modification, the convex portion 224A is provided on the rear surface of the outer body 24 so as to protrude outward. The end of the cushioning material 34 </ b> A on the outer body 24 side is located closer to the outer body 24 than a virtual line drawn in parallel with the extension 35 from the convex portion 24 </ b> A of the outer body 24 located above the end. That is, the convex portion 24A of the outer body 24 is located on the rear side from the end portion of the cushioning material 34A. Thereby, when the handle | steering-wheel 3 exists in an expansion | extension position, 224A and buffer material 34A contact | abut. The unexpected movement of the handle 3 to the main body 2 can be suppressed.

  If there is no problem in strength, as in the third modification, the main body 2 is provided with a convex portion 224A as an alternative to the abutting portion 31B, and the convex portion and the abutted portion 34 are abutted. By doing so, it is possible to prevent damage to the connection portion R between the contacted portion 34 and the extending portion 35 with a relatively inexpensive configuration. Further, if only the shape of the abutted portion 34 is a quadrangular shape and brought into contact with the convex portion 224A, the abutment can be smoothly performed even when the height of the convex portion provided on the main body 2 is lowered. Can do.

  The present invention can obtain the following effects by the power supply device 1 described above.

  As the power supply device 1, the inverter device 5 and the battery 8 having a large capacity are accommodated in the main body 2 and can be carried, so that even in areas where commercial AC voltage power is not supplied, for example, in disaster areas affected by large earthquakes. It is possible to supply AC voltage power for a long time. Moreover, since the battery 8 which can be charged is provided, the battery 8 can be charged by connecting a commercial AC power source to the inverter device in an area where the power of the commercial AC voltage is supplied.

  Since the inverter device 5 can be fixed on the upper lid 4, when the sine wave adapter is accommodated in the main body 2, the inverter device is fixed to the engaging portion 43 </ b> A and disposed on the outer surface of the upper lid 4. Can do. For this reason, the outer diameter dimension of the main body 2 can be made small. In addition, the power supply device 1 includes the sine wave adapter 9 that converts the rectangular wave AC voltage output from the inverter device 5 into a sine wave AC voltage and outputs the sine wave AC voltage. be able to.

  Since the battery 8 is made of an in-vehicle lead storage battery, the capacity of the battery 8 can be increased. Moreover, since the inverter device 5 can also connect the battery pack 5C for electric tools, it can use the battery 8 and the battery pack 5C properly according to a use application. If the battery 8 is used, the operation time of the device connected to the power supply device 1 can be made longer than when the power tool battery pack 5C is used. On the contrary, if the battery pack 5C for electric tools is used, the inverter device 5 can be carried on the shoulder or the like.

  The main body 2 is provided with a handle 3 that can be gripped for transporting the main body 2, and the handle 3 is held by a handle holding portion 31A provided in the main body 2, so that the power supply device can be easily moved. can do.

  Since the handle 3 is composed of the first handle portion 37 and the second handle portion 38, the handle 3 is manufactured by blow molding to reduce the cost and the battery 8 is accommodated in the main body 8. The handle 3 can be strong enough to grip and carry the handle 3. Moreover, since the 1st handle part 37 and the 2nd handle part 38 are the same shapes, they can be manufactured with the same metal mold | die and manufacturing cost can be reduced.

  Since the main body 2 is provided with an abutting portion 31B that restricts the movement of the handle 3, even when the handle 3 is manufactured by blow molding, the handle 3 is in the extended position when the handle 3 is moved. It is possible to prevent the handle 3 from being damaged by contact with the portion other than the contact portion 31B. Further, by using a pressed part as the contact portion 31B, the inexpensive contact portion 31B and the handle 3 which is an inexpensive blow-molded product can be used in combination, and the manufacturing cost for the power supply device 1 can be reduced. it can.

  Since the contact portion 31B is provided with the second damper 31D and the contacted portion 34 is provided with the buffer material 34A, the handle 3 is forcibly moved from the storage position to the extended position. In this case, the collision load generated between the contact portion 31B and the handle 3 can be reduced. For this reason, durability of the handle | steering-wheel 3 and the contact part 31B can be improved.

  Since the cushioning material 34A is provided over the entire circumference of the abutted portion 34, even when the main body 2 is overturned and the handle 3 approaches the ground or the floor, the cushioning material 34A is not grounded. The impact when the handle 3 comes into contact with the ground, the floor or the like can be reduced by colliding with the floor or the like, and the handle 3 can be prevented from being damaged.

  Since the buffer material 34A is made of a rubber damper, it can be made of an inexpensive and simple material.

  Since the main body 2 is provided with the wheels 21, the power supply device 1 can be easily moved.

  The upper lid 4 is provided with a latch plate 43. By fixing the inverter device 5 to the upper lid 4, the display panel 51 of the inverter device 5 can be used in an easily viewable state. Further, access to the inverter device 5 is facilitated.

  The engaging portion 43A of the latch plate 43 protrudes from the upper lid 4, and the upper lid 4 is provided with a wall portion 44 that protrudes more than the engaging portion 43A, thereby preventing other objects from colliding with the engaging portion 43A. It is possible to protect the engaging portion 43A.

  Since the upper surface 4A of the upper lid 4 is inclined downward toward the flat portion 4B, when rainwater or the like drops on the inclined surface, the rainwater can flow toward the flat portion 4B of the upper lid 4. For this reason, it is possible to prevent rainwater or the like from accumulating on the outer surface of the upper lid 4.

  Since the upper surface 4A of the upper lid 4 is inclined downward by 1 ° or more toward the flat portion 4B, rainwater or the like can be flowed effectively.

  Since the upper lid groove portion 47 is formed in the upper lid 4, a cable connected to the inverter device 5 or the like can be passed through the upper lid groove portion 47 from outside to inside of the main body 2 or from inside to outside.

  A peripheral edge portion 47 </ b> A is provided around the upper lid groove portion 47, and rainwater or the like can be prevented from flowing into the main body 2 through the upper lid groove portion 47.

  Since the first recess 48 has a shape along the housing portion 54, the lower surface 4 </ b> C around the first recess 48 abuts against the adapter 7 when the adapter 7 is connected to the housing portion 54. 4 can prevent the opening 2a from being closed.

  Since the inverter device 5 is accommodated in the upper chamber 26, the inner lid 6 is accommodated in the intermediate chamber 27, and the battery 8 is accommodated in the lower chamber 28, the battery 8, the inverter device 5, and the inner lid 6 are connected to the main body 2. Can be accommodated compactly.

  When the inverter device 5 is placed on the inner lid 6, the cable storage space 6 b is formed so as to face the inverter device 5, and therefore an adapter cable 71 for connecting the inverter device 5 and the battery 8 is provided. Therefore, it is possible to avoid forcibly bending the adapter cable 71.

  Since the sine wave adapter 9 that can be accommodated in the upper chamber 26 is further provided, the power of the AC voltage of the sine wave can be supplied from the power supply device 1.

  When the sine wave adapter 9 is placed on the inner lid 6, the cable storage space 6 b is formed so as to face the sine wave adapter 9, and thus a cable for connecting the sine wave adapter 9 and the battery 8. Can be accommodated, and it is possible to avoid forcibly bending the cable.

  Since the inner lid groove portion 63 is formed in the inner lid 6, a cable or the like connected to the battery 8 is passed through the inner lid groove portion 63 from the lower surface side of the inner lid to the upper surface side or from the upper surface side to the lower surface side. be able to.

  Since the through-hole 6 a is formed in the inner lid 6, rainwater or the like that has flowed into the upper chamber 26 can flow to the lower chamber 28. Even if hydrogen gas is generated from the battery 8 in the lower chamber 28, the hydrogen gas can be exhausted to the upper chamber 26.

  Since the buffer material 2A is filled between the outer body 24 and the inner body 25, the temperature change in the main body 2 can be suppressed, and the performance of the battery 8 can be stabilized. Further, the shock absorbing material 2A can absorb the impact received when another object collides with the outer body, and the battery 8 and the inverter device 5 accommodated in the main body 2 can be protected.

  A drain hole 25b is formed in the inner body 25 and has an inclined portion 25B that slopes downward toward the drain hole 2b. Therefore, rain water that has entered the main body 2 flows into the drain hole 2b. Can be discharged to the outside.

  Since the inclined portion 25B is inclined at an angle of 1 ° or more with respect to the horizontal, rainwater that has entered the main body 2 can be effectively allowed to flow into the drain hole 2b.

  Since the battery 8 is supported by the battery shaft 83 in the left-right direction and is in contact with the restricting portion 82A in the front-rear direction, not only can the battery 8 be stably held in the left-right direction, but also the end of the battery 8 Can be stably positioned in the front-rear direction that intersects the left-right direction.

  Between the battery plate 82 and the rib 25C (inner body 25), an anti-slip member 25D that prevents the battery plate 82 from sliding relative to the inner body 25 is provided. Can be stably held against.

  Between the battery plate 82 and the battery 8, a non-slip member 82 </ b> B that prevents the battery 8 from sliding with respect to the battery plate 82 is provided, so that the battery 8 can be stably held with respect to the battery plate 82. can do.

  Since the anti-slip members 25D and 82B are made of rubber dampers, the battery plate 82 can be held with respect to the inner body 25 and the battery 8 can be held with respect to the battery plate 82 easily and effectively.

  Since the elastic material 87 is provided on the surface of the support plate 85 in a range longer than the distance between the terminals 81, when the support plate 85 is removed from the battery shaft 83 in an attempt to replace the battery 8, the terminals 81 are mistaken. Even when the support plate 85 is dropped, it is possible to prevent a short circuit.

Since the inverter device 5 is attached to the upper lid 4, the inverter device 5 can be cooled by outside air. It is possible to prevent the heat of the inverter device 5 from being trapped in the main body 2.

  The power supply device according to the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made within the scope described in the claims.

  In the above-described embodiment, either the inverter device 5 or the sine wave adapter 9 can be accommodated in the main body 2, but the height of the main body 2 is increased and the inverter device 5 and the sine wave are placed in the main body 2. Both adapters 9 may be accommodated. Even in this case, it is preferable that the upper lid 4 is configured so as not to be closed when the adapter 7 is mounted in the accommodating portion 54.

  In the above-described embodiment, one drain hole 25a is formed in the contact portion 25A, but a plurality of drain holes may be formed. Thereby, even if a large amount of water enters the main body 2, it can be quickly discharged to the outside.

  In the above-described embodiment, urethane is adopted as the buffer material 2A, but other materials such as polystyrene may be used. Moreover, it is not necessary to fill the buffer material 2A.

  In the above-described embodiment, polyethylene is used for the inner body 25, but the inner body 25 may be polypropylene.

  In the above-described embodiment, the handle 3 is formed by combining the first handle portion 37 and the second handle portion 38, but the handle 3 may be made of metal.

  In the embodiment described above, the cushioning material 34A is provided on the handle 3 and the second damper 31D is provided on the contact portion 31B. However, only one of them may be provided.

  Further, a cushioning material may be provided on the lower surface of the reinforcing member 36. Thereby, when an operator pushes down the handle | steering-wheel 3, the upper surface of the holding | maintenance part 31 and buffer material contact | abut, and an impact can be relieved.

In the above-described embodiment, the upper lid groove portion 47 is provided on the rear surface, but may be a surface other than the side surface on which the hinge attachment portion 46 is provided. A plurality of upper lid groove portions 47 may be provided.

  In the above embodiment, the inverter device 5 can be placed on the inner lid 6, but a member corresponding to the engaging portion 43 </ b> A is provided on the inner lid 6 so that the inverter device 5 can be fixed to the inner lid 6. Also good. Further, the inner lid 6 may be provided with an engaging portion that engages with the bottom surface of the sine wave adapter 9 and fixes the sine wave adapter 9.

  In the above-described embodiment, the adapter housing portion 62 accommodates a part of the adapter 7 and the adapter cable 71. However, the battery pack 5C may be accommodated. Moreover, you may comprise so that the adapter 7 and the battery pack 5C can be accommodated simultaneously.

  In the above-described embodiment, the adapter 7 is accommodated in the adapter accommodating portion 62 so that the adapter 7 is placed on the bottom surface 6 </ b> A of the inner lid 6, but the adapter 7 is fixed so that the adapter 7 does not move in the adapter accommodating portion 62. You may provide the member to do.

  In the above-described embodiment, the bottom surface 6A of the inner lid 6 is a horizontal surface, but may be inclined downward toward the water drain hole 6a. Thereby, it becomes a structure where water does not easily accumulate in the adapter storage portion 62.

  In the above-described embodiment, the inner lid groove portion 63 is provided in the rear peripheral wall 61, but may be provided in the peripheral wall 61 in another position. In addition, a plurality of inner lid groove portions 63 may be provided on the peripheral wall 61.

  The main body 2 may have a cooling function. Specifically, an intake port for outside air is provided on one surface of the main body 2, and an exhaust fan is provided on a surface facing the one surface. Thereby, even if the battery 8 and the sine wave adapter 9 generate | occur | produce heat, the temperature rise in the main body 2 can be suppressed.

DESCRIPTION OF SYMBOLS 1 ... Power supply device 2 Main body 3 Handle 4 Upper lid 5 Inverter device 6 Inner cover 7 Adapter 8 Battery 9 Sine wave adapter 21 Wheel 23 Projection 24 · · Outer body 25 · · Inner body 25a · · Recess portion 25b · · Water drain hole 25D · · Anti-slip member 25B · · Inclined portion 26 · · Upper chamber 27 · · Middle chamber 28 · · Lower chamber 31 · · · Portion 37 ··· first handle portion 38 ··· second handle portion 31B · · contact portion 31C · · first damper 31D · · second damper 34A · · cushioning material 43 · · latch plate 43A · · engagement portion 44 ··· wall portion 47 ··· upper cover groove portion 47A · · peripheral edge portion 47B · · curved portion 48 · · first recess portion 49 · · second recess portion 52 · · output cable 61 · · surrounding wall 62 · · adapter housing portion 63 ..Inner cover groove 64 ..Reception part 81 ..Terminal 2 · battery plates 82B ... skidproof 82a ... shaft through hole 83 ... battery shaft 85 ... supporting plate 87 ... elastic member

Claims (18)

A box-shaped main body with an opening formed at one end;
A lid provided on the main body so as to open and close the opening;
A battery that is housed in the main body and can be charged and discharged;
An inverter device that can be accommodated in the main body and converts a DC voltage from the battery into an AC voltage and outputs the AC voltage;
A power supply apparatus comprising: The inverter device converts the DC voltage from the battery into a rectangular wave AC voltage and outputs it,
A rectangular wave AC voltage output from the inverter device can be converted into a sine wave AC voltage, and includes a sine wave adapter capable of outputting the sine wave AC voltage,
The power supply apparatus according to claim 1, wherein the sine wave adapter can be stored in the main body.   The power supply device according to claim 1, wherein an inverter device fixing portion capable of fixing the inverter device is provided on an outer surface of the lid.   The power supply device according to claim 3, wherein the inverter device fixing portion includes a locking portion that receives a locked portion of the inverter device.   5. The power supply device according to claim 3, wherein the inverter device can be used independently in a state separated from the inverter device fixing portion.   The power supply apparatus according to any one of claims 1 to 5, wherein the battery is made of an in-vehicle lead storage battery.   The power supply device according to claim 6, wherein the inverter device can selectively use the lead storage battery and the battery pack for an electric tool.   8. The power supply device according to claim 7, wherein the inverter device and the lead storage battery are connected by a battery adapter having a connection portion having the same shape as the connection portion of the battery pack for the electric tool.   When the inverter device is accommodated in the main body with the battery pack for the electric tool or the battery adapter connected to the inverter device, the lid cannot close the opening. The power supply device according to claim 8.   The main body portion is provided with a handle that can be gripped to transport the main body portion, and the handle is held by a handle holding portion provided in the main body portion. The power supply device according to any one of 9.   The handle includes a first handle portion and a second handle portion, each having a joint surface, the joint surfaces being joined and fixed to each other, and the first handle portion and the second handle portion are joined to each other. The power supply device according to claim 10, wherein the power supply device has a halved shape that is plane-symmetric with respect to the joint surface. The handle is held by the handle holding portion so as to be movable within a predetermined range in a direction connecting one end and the other end of the main body portion,
When the handle is positioned at the edge of the range in the direction from the one end of the main body portion to the other end, and in the range of the range in the direction from the other end of the main body portion to the one end The power supply device according to claim 10, wherein a stopper that comes into contact with the handle when the handle is located at an end edge is provided on the main body.   An elastic member is provided on at least one of a part of the stopper that is in contact with the handle or a part of the handle that is in contact with the stopper. The power supply device according to claim 12. The handle is disposed on the outer surface of the main body and is movable along the outer surface;
14. The power supply device according to claim 13, wherein the elastic member is provided to reach a position farther from the outer surface of the main body than the handle.   14. The power supply apparatus according to claim 13, wherein the elastic member is made of a rubber damper. The handle has a most protruding portion that protrudes most in the power supply device in a direction from the other end to the one end of the main body,
The center of gravity of the power supply device projected on a virtual plane orthogonal to the direction connecting the one end and the other end of the main body when one end of the main body is vertically lower and the other end of the main body is vertically upper 11. The most projecting portion is deviated to such an extent that a state in which one end of the main body portion is vertically lower and the other end of the main body portion is vertically upper cannot be stably maintained. The power supply device according to claim 15. The handle is disposed on the outer surface of the main body, and is movable between a retracted position most retracted and an extended position protruding most along the outer surface;
In the state where the inverter device is attached to the lid and the handle is in the storage position, the upper lid side end of the handle is located above the uppermost portion of the inverter device. The power supply device according to any one of claims 10 to 16.   18. The wheel according to claim 1, wherein the main body is provided with a wheel that is supported by the main body so as to be rotatable with respect to the main body so as to be movable. The power supply device according to one.

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