JP5994329B2 - Power supply device and battery replacement method - Google Patents

Description

  The present invention relates to a power supply device, a battery, and a battery replacement method that can improve battery replacement work efficiency.

  In recent years, general consumers who purchase power supply devices such as an emergency power storage device or an uninterruptible power supply are increasing in preparation for a situation where power is not stably supplied due to an earthquake disaster or the like. Such a power supply device generally has a structure in which a battery for storing electric power and a circuit board for electrically connecting various electronic components are accommodated in a casing. The circuit board is equipped with a rectifier for converting AC power from an external power source such as a commercial power source into DC power, and an inverter for converting DC power to AC power.

  Since the performance of the battery in this power supply device is degraded by repeated charging and discharging, it is preferable to replace the battery periodically. However, the conventional power supply device generally has a structure in which a battery and a circuit board are integrally housed in a casing from the viewpoint of compactness and the like and a general consumer replaces the battery. It is not.

  On the other hand, Non-Patent Document 1 describes an uninterruptible power supply capable of replacing the battery and a procedure for exchanging the battery of the uninterruptible power supply. According to the replacement procedure described in Non-Patent Document 1, first, the battery accommodated in the casing is taken out from the casing. Since the cable extending from the circuit board installed in the casing is connected to the extracted battery terminal, the cable is removed from the battery terminal. And a battery is replaced | exchanged, a cable is connected to the terminal of the battery after replacement | exchange, and a battery is accommodated in a casing. As described above, the battery of the power supply device can be replaced.

Fujitsu Limited, “Smart-UPS Battery Replacement Procedure”, July 2006, p5-7

  However, in the replacement method as described above, for example, when the cable is hooked on a protrusion or the like formed inside the casing, if the battery is taken out from the casing, the cable may be disconnected. For this reason, when taking out a battery so that a cable breakage may not occur, work must be performed carefully and there was a problem that work efficiency was bad.

  This invention was made in order to solve the above-mentioned subject, The objective is to provide the power supply device, battery, and battery replacement method which can improve the replacement work efficiency of a battery.

  (1) In order to solve the above-described problem, a power supply device according to an aspect of the present invention includes a battery having a terminal and a first cable extending from the terminal, and the battery, and takes out the battery to the outside. And a second cable for supplying electric power from an external power source to the battery, wherein the first cable and the second cable are operated from the outside of the casing. Make electrical connections where possible.

  Thus, since the 1st cable and the 2nd cable are connected in the position which can be operated from the casing exterior, the connection of the 1st cable and the 2nd cable can be canceled, without taking out a battery from the inside of a casing. . As a result, the battery can be taken out from the casing with the first cable removed from the second cable, and the cable can be prevented from being caught by a protrusion or the like in the casing. Therefore, the battery replacement work efficiency can be improved. Note that the first cable and the second cable do not need to be directly connected, and may be indirectly connected via a component such as a connector.

  (2) Preferably, it further includes a cover plate that closes the opening of the casing so as to be openable and closable.

  According to this structure, it can prevent that a battery is taken out from an opening part unexpectedly. Note that the cover plate does not need to block the entire opening, and may cover the opening at least so that the battery cannot be taken out from the casing.

  (3) More preferably, the first cable extends from the terminal of the battery along the outer surface of the cover plate and is electrically connected to the second cable.

  According to this configuration, since the first cable extends along the outer surface of the cover plate, the cover plate cannot be removed unless the first cable is removed from the second cable. And as a result of not being able to remove a cover plate, a battery cannot be taken out from a casing. Therefore, the user can perform battery replacement work in the order of removing the battery from the casing after removing the first cable from the second cable.

  (4) Preferably, the connection part of the said 1st cable and the said 2nd cable is located in the opening part vicinity of the said casing.

  Since the opening is a portion for taking out the battery, the connection portion between the first cable and the second cable is located in the vicinity of the opening as in the above configuration, so that the first cable and the second cable are The user can be alerted to release the connection.

  (5) Preferably, said 1st cable has one 1st connector attached to the front-end | tip part of each said 1st cable while extending a pair from the positive electrode terminal and negative electrode terminal of said battery, and said 2nd cable Is a pair corresponding to the pair of first cables, and has one second connector attached to the tip of each second cable. The first cable and the second cable are Electrical connection is made via the first connector and the second connector.

  According to this configuration, only by attaching and detaching the first connector and the second connector, the pair of first cables extending from the positive terminal and the negative terminal and the pair of second cables corresponding to the first cables can be connected at a time. It can be electrically connected or disconnected.

  (6) Preferably, a battery mounting table for mounting the battery is further provided in the casing, and the battery mounting table can be pulled out from the casing.

  According to this configuration, since the battery can be taken out from the casing simply by pulling out the battery mounting table from the casing, the battery can be efficiently taken out when a plurality of batteries are accommodated in the casing. Can do.

  (7) Preferably, the casing spans the top plate, a pair of opposing side plates extending downward from the top plate, a shelf plate extending between the side plates, and the top plate and the shelf plate. And a vertically extending plate.

  According to this configuration, since the suspended plate is provided between the top plate and the shelf plate, the strength against the load from the top plate side of the casing can be improved.

  (8) More preferably, it further comprises a circuit board housed in the casing, the circuit board is fixed to the hanging plate in a state parallel to the hanging plate, and the second cable is Extending from the circuit board.

  According to this configuration, a horizontal space in the casing can be secured.

  (9) Preferably, a temperature sensor for detecting the temperature in the casing is further provided.

  According to this configuration, it is possible to detect whether or not the temperature of the battery is high by detecting the temperature in the casing by the temperature sensor.

  (10) More preferably, a fan for cooling the inside of the casing is further provided.

  According to this structure, when the temperature in a casing becomes high temperature by the heat etc. which arise from a battery, the inside of a casing can be cooled.

  (11) In order to solve the above-described problems, a battery according to an aspect of the present invention is a replacement battery used in each of the power supply devices, and includes a battery body having a positive terminal and a negative terminal, and the battery body. A pair of cables extending from the positive terminal and the negative terminal, and one connector attached to each end of the pair of cables.

  According to this configuration, the power supply main body and the battery can be electrically connected or disconnected by attaching or detaching the connector, so that it is a general consumer who is not familiar with electrical equipment. However, the battery replacement operation can be easily performed.

  (12) In order to solve the above problem, a battery replacement method according to an aspect of the present invention includes a battery in which a first cable extends from a terminal, and the first cable so as to supply electric power from an external power source to the battery. A method of exchanging the battery in a power supply device comprising a connected second cable and a casing for housing the battery, the step of releasing the connection between the first cable and the second cable, and the release After the step of removing the battery from the casing.

  According to this battery replacement method, since the battery is taken out from the casing after the connection between the first cable and the second cable is released, the cable is caught in the casing and disconnected when the battery is taken out. Can be prevented. Therefore, the battery replacement work efficiency can be improved. Note that the first cable and the second cable do not need to be directly connected, and may be indirectly connected via a component such as a connector.

  According to the present invention, it is possible to improve battery replacement work efficiency.

FIG. 1 is a perspective view seen from the left side when the battery of the power supply device according to the embodiment of the present invention is accommodated. FIG. 2 is a perspective view of the power supply device according to the embodiment of the present invention as viewed from the right side when the battery is accommodated. FIG. 3 is a perspective view seen from the left side when the battery of the power supply device according to the embodiment of the present invention is taken out. FIG. 4 is a perspective view of a power supply device equipped with a decorative board according to an embodiment of the present invention. FIG. 5 is an enlarged view of a portion A in FIG. FIG. 6 is a perspective view of a power supply device that holds the cover plate in an open state according to the embodiment of the present invention.

  Hereinafter, a power supply device, a battery, and a battery replacement method according to embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

[Power supply]
FIG. 1 is a perspective view of the power supply device 1 according to the embodiment of the present invention as seen from the left side when the battery is accommodated, and FIG. 2 is a perspective view of the power supply device 1 according to the embodiment of the present invention as seen from the right side. FIG. 3 is a perspective view of the power supply device 1 according to the embodiment of the present invention as viewed from the left side when the battery is taken out.

  As shown in FIG. 1 to FIG. 3, the power supply device 1 includes a casing 2 that houses each member, a battery 3 that stores electric power from an external power source (not shown), and electronic components connected by wiring. The circuit board 4 which comprises an electronic circuit is provided as a main component. In addition, the power supply device 1 further includes a charger 5 and an inverter 6 in the casing 2. Hereinafter, each component of the power supply device 1 will be described in detail.

  The casing 2 is for housing the battery 3, the circuit board 4, and the like inside. The casing 2 includes a top plate 21, a pair of opposing side plates 22 extending downward from the top plate 21, a bottom plate 23 extending between the side plates 22, and between the side plates 22 between the top plate 21 and the bottom plate 23. It is mainly comprised from the shelf board 24 extended over. The casing 2 has a hanging plate 25 extending over the top plate 21 and the shelf plate 24. In addition, each side plate is distinguished by making the code | symbol of the side plate of the front side (front side of FIG. 1) 22a, the code | symbol of the side plate of a back side 22b, and when referring generically without distinguishing both side plates, code | symbol is used. This embodiment will be described as 22.

  The internal space of the casing 2 is roughly divided into two by a shelf plate 24, and a circuit board 4, a charger 5, and an inverter 6 are placed in an upper space surrounded by the top plate 21, the side plate 22, and the shelf plate 24. Contained. Further, the battery 3 is accommodated in a lower space surrounded by the shelf plate 24, the side plate 22, and the bottom plate 23.

  A display panel 221 for indicating the state of the power supply device 1 and an operation handle 222 that is held by the user when the power supply device 1 is moved are attached to the side plate 22a on the front side. In order to improve the visibility of the display panel 221, the upper part of the front side plate 22a to which the display panel 221 is attached has an upwardly inclined shape.

  A fan 223 for taking in external air into the casing 2 is attached to the rear side plate 22b. And the temperature sensor 85 for detecting the temperature in the casing 2 is installed in the back surface of the cover plate 8 mentioned later. When the temperature detected by the temperature sensor 85 becomes equal to or higher than a preset threshold value, the fan 223 can be set to operate.

  Moreover, the casing 2 has the side plate 22 on the front side and the back side, but has no side plate on the side surface side. As described above, the casing 2 does not have the side plate on the side surface side, so that a pair of opposed openings 26a and 26b are formed. The battery 3 accommodated in the casing 2 can be taken out of the casing 2 through the opening 26 a formed in the casing 2. In addition, the side surface of the casing 2 in which the openings 26a and 26b are formed can be covered with the decorative board 7 as shown in FIG. In addition, the casing 2 in this specification means the thing except this decorative board 7, and the decorative board 7 is not a part of the casing 2. FIG.

  The power supply device 1 covers the lower half of the opening 26a of the casing 2 corresponding to the lower space in which the battery 3 is accommodated, that is, the portion defined by the side plates 22, the bottom plate 23, and the shelf plate 24. 8 is further provided. A cover plate that covers the upper half of the opening 26a of the casing 2 corresponding to the upper space of the casing 2 in which the circuit board 4 and the like are accommodated may be separately provided.

  The cover plate 8 is attached to the casing 2 so as to close the lower half of the opening 26a so that it can be opened and closed. More specifically, the cover plate 8 is attached to the shelf plate 24 of the casing 2 via the hinge portion 81. By rotating around the hinge portion 81, the cover plate 8 can be in a closed state in which the lower half of the opening 26a is closed and an open state in which the lower half of the opening 26a is opened.

  When the cover plate 8 is in the closed state, the lower end portion of the cover plate 8 can be fixed to the bottom plate 23 of the casing 2 using a bolt or the like in order to maintain the state. Further, a locking portion 211 is provided on the top plate 21 of the casing 2 so that the cover plate 8 can be held in an open state, and a locked portion 82 that locks the locking portion 211 is provided at the lower end of the cover plate 8. You can also. For example, a hook-shaped hook member can be attached to the top plate 21 of the casing 2 as the locking portion 211, and a ring-shaped ring member or the like can be provided at the lower end portion of the cover plate 8 as the locked portion 82.

  The cover plate 8 has a notch 83 formed at the upper end to avoid interference with the first connector 34 described later. Further, a notch 84 for passing the first cable 33 extending from the battery 3 is formed at the lower end of the cover plate 8.

  A caster 231 for facilitating the movement of the power supply device 1 and a floor stopper 232 for fixing the power supply device 1 in place are attached to the bottom surface of the casing 2, that is, the lower surface of the bottom plate 23.

  On the bottom plate 23 of the casing 2, a battery mounting table 9 for mounting the battery 3 is disposed. The battery mounting table 9 has a slide rail 91 fixed to the bottom plate 23 on its side surface, and can be slid out of the casing 2 by the slide rail 91.

  The battery 3 can use a well-known battery, for example, can use a lead acid battery etc. In the present embodiment, four batteries 3 are accommodated in the casing 2. More specifically, each battery 3 is mounted on the battery mounting table 9 in two vertical rows and two horizontal rows, and is fixed to the battery mounting table 9 by a fixing band 92.

  Each battery 3 has a positive terminal 31 and a negative terminal 32 on the upper surface of the battery body 30, and a first cable 33 extends from each of the positive terminal 31 and the negative terminal 32, that is, from each battery 3. The pair of first cables 33 extends. The pair of first cables 33 has one first connector 34 attached to the tip.

  The circuit board 4 is fixed to the suspended plate 25 in a state parallel to the suspended plate 25 of the casing 2. That is, the circuit board 4 is standing vertically. The battery 3, the charger 5, and the inverter 6 are electrically connected via the circuit board 4.

  As shown in FIG. 5, a pair of second cables 41 that are electrically connected to a pair of first cables 33 that extend from the positive terminal 31 and the negative terminal 32 of each battery 3 extend from the circuit board 4. FIG. 5 is an enlarged view of a portion A in FIG. In the present embodiment, since there are four batteries 3, the first cable 33 and the second cable 41 each extend by four pairs.

  The pair of second cables 41 are connected to one second connector 42 at the ends thereof. The second connector 42 is configured to be detachable from the first connector 34. When the second connector 42 is connected to the first connector 34, the first cable 33 and the second cable 41 are electrically connected. Connected to.

  The second connector 42 is fixed in the vicinity of the opening 26 a of the casing 2. Specifically, the second connector 42 is fixed to the end of the shelf plate 24 on the opening 26 a side. More specifically, the second connector 42 is fixed to the fixing plate 241 provided at the end portion on the opening 26a side of the shelf plate 24 with the connection end portion to the first connector 34 facing downward. Has been. Thus, since the 2nd connector 42 is being fixed to the edge part by the side of the opening part 26a of the shelf 24, the connection part of the 1st cable 33 and the 2nd cable 41 can be operated from the exterior of the casing 2 Position. In a state where the first connector 34 and the second connector 42 are connected, the first cable 33 is in a state along the outer surface of the cover plate 8.

  Thus, the 1st cable 33 and the 2nd cable 41 are electrically connected in the position which can be operated from the outside of casing 2. The position operable from the outside of the casing 2 refers to a position where the connection between the first cable 33 and the second cable 41 can be released while the battery 3 is housed in the casing 2. Although the first cable 33 and the second cable 41 may be directly connected, in the present embodiment, the first cable 33 and the second cable 41 connect the first connector 34 and the second connector 42 to each other. Indirectly connected.

  In addition, the power supply device 1 includes a regulation unit that regulates removal of the battery 3 from the casing 2 before the connection between the first cable 33 and the second cable 41 is released. In the present embodiment, the restriction means is configured by the cover plate 8 and the first cable 33 extending along the outer surface of the cover plate 8.

  As shown in FIG. 2, the charger 5 is accommodated in the upper space of the casing 2, and is fixed to the lower stage of the two-stage mounting base 27 installed on the shelf plate 24 of the casing 2. The charger 5 has a function of charging the battery 3 by converting AC power from an external power source into DC power, and also has a charge control function for avoiding overcharging.

  The inverter 6 is fixed to the upper stage of the two-stage mounting base 27 in the upper space of the casing 2. The inverter 6 has a function of converting DC power into AC power when supplying DC power stored in the battery 3 to an external device (not shown).

[Battery replacement method]
Next, a battery replacement method in the power supply device 1 configured as described above will be described.

  First, when the decorative plate 7 is attached to the side surface of the casing 2 with bolts or the like as shown in FIG. 4, the decorative plate 7 is removed from the casing 2 by removing the bolts or the like, and the power supply device 1 is shown in FIGS. The state is as shown in.

  Next, the electrical connection between the first cable 33 and the second cable 41 is released by removing the first connector 34 from the second connector 42.

  And the bolt which has fixed the lower end part of the cover plate 8 to the casing 2 is removed, the cover plate 8 is opened centering on the hinge part 81, and the lower half of the opening part 26a is open | released. The locked portion 82 of the cover plate 8 is hooked on the locking portion 211 on the top plate portion 21 of the casing 2 so as to hold the cover plate 8 in an open state. By this operation, the power supply device 1 is in a state as shown in FIG. FIG. 6 is a perspective view of the power supply apparatus that holds the cover plate according to the present embodiment in an open state.

  When the cover plate 8 is thus opened, the battery 3 can be removed from the casing 2. Specifically, the battery mounting table 9 on which the battery 3 is mounted is pulled out of the casing 2. Thereby, the battery 3 on the battery mounting table 9 is taken out from the casing 2. By this work, the power supply device 1 is in a state as shown in FIG.

  When the battery 3 is taken out from the casing 2, the fixing band 92 that fixes the battery 3 to the battery mounting table 9 is removed. Thus, the battery 3 can be removed from the power supply device 1.

  Next, the new battery 3 is mounted on the battery mounting table 9, and the battery 3 is fixed on the battery mounting table 9 by the fixing band 92. Then, the battery mounting table 9 on which the battery 3 is placed is slid and accommodated in the casing 2 by pushing the battery mounting table 9 toward the casing 2. Thereby, the battery 3 mounted on the battery mounting base 9 is also accommodated in the casing 2, and the power supply device 1 is in a state as shown in FIG.

  When the battery 3 is accommodated in the casing 2, the locked portion 82 of the cover plate 8 hooked on the locking portion 211 on the top plate 21 of the casing 2 is removed from the locking portion 211. Then, the cover plate 8 is rotated around the hinge portion 81 so that the lower half of the opening 26 is covered, and the lower end portion of the cover plate 8 is fixed to the bottom plate 23 using bolts or the like. When the cover plate 8 is in a closed state, the first cable 33 extending from the battery 3 is extended from the cutout portion 84 of the cover plate 8 to the outside of the casing 2.

  After the cover plate 8 is closed, the first connector 34 attached to the distal end portion of the first cable 33 extending from the notch 84 of the cover plate 8 is attached to the second connector 42, and the power supply device 1 is attached. The state is as shown in FIG. Thereby, the 1st cable 33 and the 2nd cable 41 are electrically connected. In this state, the first cable 33 extends along the outer surface of the cover plate 8.

  And finally, the decorative board 7 is attached to the casing 2, and the power supply device 1 is set as shown in FIG. Thus, the battery 3 can be replaced with a new one.

  As described above, the power supply device 1 according to the present embodiment includes the battery 3 having the first cable 33, the casing 2 that houses the battery 3, the second cable 41 for supplying power from the external power source to the battery 3, It has. And the 1st cable 33 and the 2nd cable 41 are electrically connected in the position which can be operated from the exterior of the casing 2. FIG.

  Thus, since the first cable 33 and the second cable 41 are connected at a position where the first cable 33 and the second cable 41 can be operated from the outside of the casing 2, the first cable 33 and the second cable 41 can be connected without removing the battery 3 from the casing 2. The connection can be released. As a result, the battery 3 can be taken out from the casing 2 with the first cable 33 removed from the second cable 41. Therefore, it is possible to prevent the first cable 33 or the second cable 41 from being caught by a protrusion or the like in the casing 2 and being disconnected, and the replacement work efficiency of the battery 3 can be improved.

  Moreover, the power supply device 1 according to the present embodiment further includes a cover plate 8 that closes the opening 26a of the casing 2 so as to be openable and closable.

  According to this configuration, the battery 3 can be prevented from being taken out of the opening 26a unexpectedly.

  In the power supply device 1 according to this embodiment, the first cable 33 extends from the terminals 31 and 32 of the battery 3 along the outer surface of the cover plate 8 and is electrically connected to the second cable 41.

  According to this configuration, since the first cable 33 extends along the outer surface of the cover plate 8, the cover plate 8 cannot be removed from the casing 2 unless the first cable 33 is removed from the second cable 41. . As a result of the inability to remove the cover plate 8, the battery 3 cannot be removed from the casing 2. Therefore, the user can perform battery replacement work in the order of removing the battery 3 from the casing 2 after removing the first cable 33 from the second cable 41.

  In the power supply device 1 according to the present embodiment, the connection portion between the first cable 33 and the second cable 41 is located in the vicinity of the opening 26 a of the casing 2.

  Since the vicinity of the opening 26a is a portion from which the battery 3 is taken out, the connecting portion between the first cable 33 and the second cable 41 is located in the vicinity of the opening 26a. 2 The user can be alerted to release the connection with the cable 41.

  Further, in the power supply device 1 according to the present embodiment, the first cable 33 extends as a pair from the positive terminal 31 and the negative terminal 32 of the battery 3, and one first connector 34 is attached to the tip of each first cable 33. It has been. A pair of second cables 41 exist so as to correspond to the pair of first cables 33, and one second connector 42 is attached to the tip of each second cable 41. The first cable 33 and the second cable 41 are electrically connected via the first connector 34 and the second connector 42.

  According to this configuration, only by attaching and detaching the first connector 34 and the second connector 42, the pair of first cables 33 extending from the positive terminal 31 and the negative terminal 32 and the pair of second cables corresponding to the first cables. The cable 41 can be electrically connected at a time or this connection can be released.

  Moreover, in the power supply device 1 which concerns on this embodiment, the battery mounting base 9 for mounting the battery 3 in the casing 2 is further provided, and the battery mounting base 9 can be pulled out from the inside of a casing. .

  According to this configuration, the battery 3 can be taken out from the casing 2 simply by pulling out the battery mounting table 9 from the casing 2. Therefore, when a plurality of batteries 3 are accommodated in the casing, the battery 3 is taken out. Can be performed efficiently.

  Moreover, in the power supply device 1 according to the present embodiment, the casing 2 includes a top plate 21, a pair of opposing side plates 22a and 22b extending downward from the top plate 21, and a shelf plate extending between the side plates 22a and 22b. 24 and a hanging plate 25 extending over the top plate 21 and the shelf plate 24.

  According to this configuration, since the suspended plate 25 is provided between the top plate 21 and the shelf plate 24, the strength against the load from the top plate 21 side of the casing 2 can be improved.

  The power supply device 1 according to this embodiment further includes a circuit board 4 accommodated in the casing 2, and the circuit board 4 is fixed to the hanging plate 25 in a state parallel to the hanging plate 25. The second cable 41 extends from the circuit board 4.

  According to this configuration, a horizontal space in the casing 2 can be secured.

  Moreover, in this embodiment, the temperature sensor which detects the temperature in the casing 2 is further provided.

  According to this configuration, it is possible to detect whether or not the temperature of the battery 3 is high by detecting the temperature in the casing 2 by the temperature sensor.

  The power supply device 1 according to the present embodiment further includes a fan 223 for cooling the inside of the casing 2.

  According to this configuration, when the temperature in the casing 2 becomes high due to heat generated from the battery 3, the inside of the casing 2 can be cooled by operating the fan 223.

  Further, the battery 3 according to the present embodiment includes a battery main body 30 having a positive electrode terminal 31 and a negative electrode terminal 32, a pair of cables 33 extending from the positive electrode terminal 31 and the negative electrode terminal 32 of the battery main body 30, and a pair of cables 33. And a single connector 34 attached to the distal end portion.

  According to this configuration, the power supply device 1 main body and the battery 3 can be electrically connected to and disconnected from each other by attaching and detaching the connector 34. Therefore, battery replacement work can be easily performed.

  Further, the battery replacement method according to the present embodiment includes a battery 3 in which the first cable 33 extends from the terminals 31 and 32, and a second cable 41 connected to the first cable 33 so as to supply power from the external power source to the battery. And a method of replacing the battery 3 in the power supply device 1 including the casing 2 that houses the battery 3. In this battery replacement method, the connection between the first cable 33 and the second cable 41 is released, and then the battery 3 is taken out from the casing 2.

  According to this battery replacement method, the battery 3 is removed from the casing 2 after the connection between the first cable 33 and the second cable 41 is released. For this reason, when taking out the battery 3, it can prevent that the 1st cable 33 or the 2nd cable 41 is hooked in the casing 2, and it breaks, and battery replacement work efficiency can be improved.

  The above embodiment should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. For example, the above-described embodiment can be changed as in a modification described below.

[Modification 1]
For example, in the above embodiment, the opening 26a is formed in the portion corresponding to the upper space and the lower space of the casing 2, but the opening 26a is formed only in the portion corresponding to the lower space, and the upper space. The part corresponding to may not be opened.

[Modification 2]
Moreover, in the said embodiment, although the 1st cable 33 and the 2nd cable 41 are electrically connected in the plate 241 for fixing provided in the shelf 24, this connection part is from the exterior of the casing 2. The position is not limited to this position as long as it can be operated.

DESCRIPTION OF SYMBOLS 1 Power supply device 2 Casing 21 Top plate 22 Side plate 24 Shelf plate 25 Hanging plate 223 Fan 3 Battery 30 Battery main body 31 Positive electrode terminal 32 Negative electrode terminal 33 1st cable 34 1st connector 4 Circuit board 41 2nd cable 42 2nd connector 8 Cover plate 85 Temperature sensor 9 Battery mount

Claims (10)

A battery having a terminal and a first cable extending from the terminal;
A casing in which an opening for accommodating the battery and taking out the battery to the outside is formed;
A second cable for supplying power from an external power source to the battery,
The first cable and the second cable are electrically connected at a position operable from the outside of the casing,
A cover plate for closing the opening of the casing so as to be opened and closed;
The first cable extends from the terminal of the battery along the outer surface of the cover plate and is electrically connected to the second cable.   The casing includes a top plate, a pair of opposing side plates extending downward from the top plate, a shelf plate extending between the side plates, and a vertical plate extending between the top plate and the shelf plate. The power supply device according to claim 1, further comprising:   3. The power supply device according to claim 1, wherein a connection portion between the first cable and the second cable is located in the vicinity of the opening of the casing. The first cable has a first connector attached to a front end portion of each first cable while extending from the positive terminal and the negative terminal of the battery as a pair.
A pair of the second cables are present so as to correspond to the pair of first cables, and each of the second cables has one second connector attached to a distal end portion of each of the second cables,
4. The power supply device according to claim 1, wherein the first cable and the second cable are electrically connected via the first connector and the second connector. 5. In the casing, further comprising a battery mounting table for mounting the battery,
The power supply apparatus according to any one of claims 1 to 4, wherein the battery mounting table can be pulled out from the casing to the outside. A circuit board housed in the casing;
The circuit board is fixed to the hanging plate in a state parallel to the hanging plate,
The power supply device according to claim 2, wherein the second cable extends from the circuit board.   The power supply device according to any one of claims 1 to 6, further comprising a temperature sensor that detects a temperature in the casing. The power supply device according to any one of claims 1 to 7, further comprising a fan for cooling the inside of the casing . The battery in a power supply device comprising: a battery extending from a terminal; a second cable connected to the first cable so as to supply power from an external power source to the battery; and a casing for housing the battery. Is a method of exchanging
The method further includes a cover plate that closes the opening of the casing so as to be openable and closable, and the first cable extends from a terminal of the battery along an outer surface of the cover plate to electrically connect to the second cable. Is a method of replacing the battery in the power supply device connected to
Releasing the connection between the first cable and the second cable;
After the step of releasing the connection, removing the battery from the casing;
Including a battery replacement method. In the method, the casing extends between the top plate, a pair of opposing side plates extending downward from the top plate, a shelf plate extending between the side plates, and the top plate and the shelf plate. The battery replacement method according to claim 9 , wherein the battery is a method of replacing the battery in the power supply device having a hanging plate.

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