JP2019149357A - Storage battery device - Google Patents

Abstract

To provide a storage battery device capable of preventing a storage battery module from being assembled in a housing in a direction different from a predetermined direction.SOLUTION: A storage battery device 10 comprises a plurality of storage battery modules 11, a housing 13 and an erroneous assembly prevention structure 33. The storage battery module 11 includes a storage battery body 20 and a terminal block 22 provided at a position shifted on one side of the upper surface of the storage battery body 20 and has a direction corresponding to the position of the terminal block 22. The housing 13 has a body part 60 having an opening 61; the storage battery module 11 is inserted and assembled into the body part 60 from the opening 61 in a predetermined direction; and the erroneous assembly prevention structure 33 prevents the storage battery module 11 from being assembled into the housing 13 in a direction different from the predetermined direction.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a storage battery device in which a plurality of storage battery modules are incorporated in a casing.

  2. Description of the Related Art Conventionally, there are power storage systems that are connected to, for example, a power generation system including a solar power generation module or the like, or a system power supply that supplies commercial power. This power storage system is configured to store the power generated by the solar power generation system or to store the power at times when the system power supply is cheap, such as at night, to supply the stored power to the load when necessary. Has been.

  A storage battery device used for power storage in such a power storage system has a configuration including a housing for installation and a plurality of storage battery modules incorporated in the housing.

  A single storage battery module is, for example, about 10 kg. When a plurality of storage battery modules are incorporated in a housing, the mass of the product is large, and the burden of transportation and installation work is large.

  For this reason, it is preferable that the plurality of storage battery modules and the casing are transported in a separated state, and the plurality of storage battery modules are incorporated into the casing and integrated at the installation location. However, when the storage battery module has a direction depending on the position of the terminal block for connection, the storage battery module may be incorporated into the housing in a direction different from the predetermined direction.

JP, 2006-207257, A

  The problem to be solved by the present invention is to provide a storage battery device capable of preventing the storage battery module from being incorporated in the housing in a direction different from the predetermined direction.

  The storage battery device of the embodiment includes a plurality of storage battery modules, a housing, and a misassembly prevention structure. The storage battery module includes a storage battery main body and a terminal block provided at a position shifted to one side of the upper surface of the storage battery main body, and has a direction corresponding to the position of the terminal block. The housing has a main body provided with an opening, and the storage battery module is inserted into the main body from the opening in a predetermined direction and incorporated. The misassembly prevention structure prevents the storage battery module from being incorporated into the housing in a direction different from the predetermined direction.

  According to the present invention, it can be expected that the storage battery module is prevented from being incorporated in the housing in a direction different from the predetermined direction.

It is a top view inside the storage battery apparatus which shows 1st Embodiment. It is a top view of the storage battery module of a storage battery apparatus same as the above. It is a disassembled perspective view of a storage battery apparatus same as the above. It is a perspective view of a storage battery apparatus same as the above. It is a perspective view of the storage battery module of the storage battery apparatus which shows 2nd Embodiment. It is a perspective view of the normal assembly state of the storage battery module which shows the inside of a storage battery apparatus same as the above. It is a perspective view of the incorrect assembly state of the storage battery module which shows the inside of a storage battery apparatus same as the above. It is 3rd Embodiment and is sectional drawing of the normal assembly state of the storage battery module which shows the inside of a storage battery apparatus. It is sectional drawing of the incorrect assembly state of the storage battery module which shows the inside of a storage battery apparatus same as the above. It is 4th Embodiment and is sectional drawing of the normal assembly state of the storage battery module which shows the inside of a storage battery apparatus. It is sectional drawing of the incorrect assembly state of the storage battery module which shows the inside of a storage battery apparatus same as the above. It is 5th Embodiment and is a perspective view at the time of vertical installation which shows the inside of a storage battery apparatus. It is a top view at the time of vertical installation of a storage battery apparatus same as the above. It is a perspective view at the time of horizontal placement which shows the inside of a storage battery apparatus same as the above. It is a front view at the time of horizontal placement of a storage battery apparatus same as the above. It is 6th Embodiment and is a perspective view of the regular assembly state which shows a part of storage battery apparatus. It is a perspective view of the incorrect assembly state which shows a part of storage battery apparatus same as the above. It is 7th Embodiment and is a perspective view of the regular assembly state which shows the inside of a storage battery apparatus. It is a perspective view of the incorrect assembly state which shows the inside of a storage battery apparatus same as the above. It is 8th Embodiment and is a perspective view of the regular assembly state which shows the inside of a storage battery apparatus. It is a perspective view of the incorrect assembly state which shows the inside of a storage battery apparatus same as the above.

  Hereinafter, a first embodiment will be described with reference to FIGS. 1 to 4.

  FIG. 4 shows the storage battery device 10. This storage battery device 10 is used in a power storage system installed in, for example, a house. The storage battery device 10 stores power using a system power supply that supplies power or commercial power from a power generation system including a solar power generation module, for example, and loads the stored power when necessary, such as at night or during a system power failure. It is configured to supply to.

  As shown in FIG. 3, the storage battery device 10 includes a storage battery module 11, a control unit 12 that controls charging / discharging of the storage battery module 11, and a housing 13 that houses the storage battery module 11 and the control unit 12. . The storage battery device 10 is installed in a vertical orientation that allows the storage battery module 11 to be attached to and detached from the housing 13 in the vertical direction. The storage battery module 11 may be singular or plural. In this embodiment, six storage battery modules 11 are used (part of the storage battery modules 11 are not shown in the drawing), and the storage battery modules 11 are short in one direction in a plan view inside the housing 13. Two rows in the hand direction (hereinafter, the direction of each configuration of the storage battery device 10 corresponding to the short direction of the housing 13 in plan view is referred to as the depth direction), the other direction orthogonal to the one direction in plan view of the housing 13 3 in each row in the longitudinal direction (hereinafter, the direction of each component of the storage battery device 10 corresponding to the longitudinal direction of the housing 13 in plan view). The control unit 12 is disposed on the upper side of the plurality of storage battery modules 11.

  As shown in FIGS. 1 to 3, the storage battery module 11 is a storage battery body 20, a monitoring unit (CMU) 21 that monitors the state of the storage battery body 20 such as voltage and temperature, and an upper end surface of the storage battery body 20. A terminal block 22 provided on the upper surface, a handle 23 for carrying the storage battery body 20, and the like are provided.

  The storage battery body 20 includes a case 25 and a storage battery (not shown) accommodated in the case 25. The case 25 is formed in a rectangular parallelepiped shape that is long in the vertical direction, and is formed in a rectangular shape in which the dimension in the depth direction in plan view is shorter than the dimension in the width direction. As the storage battery, a rechargeable secondary battery such as a lithium ion battery is used.

  The monitoring unit 21 is disposed on one side in the depth direction of the storage battery main body 20, and is electrically connected to the storage battery of the storage battery main body 20. The monitoring unit 21 is electrically connected to the control unit 12 through the terminal block 22, and relays transmission / reception of information and charging / discharging of the power source between the storage battery module 11 and the control unit 12.

  The terminal block 22 is provided at a position shifted to one side in the depth direction on the upper surface of the storage battery body 20, that is, at an upper position of the monitoring unit 21. The terminal block 22 is provided with a power terminal 26 to which a power line for connecting to the control unit 12 is connected, a communication terminal (communication connector) 27 to which a communication line is connected, and the like.

  The handle 23 is formed in a substantially U-shaped cross section having a grip portion 28 and connecting portions 29 provided at both ends of the grip portion 28. The grip portion 28 is disposed on the upper side of the storage battery main body 20, and both connecting portions 29 are connected to both side portions of the storage battery main body 20 so as to be slidable in the vertical direction. The handle 23 is located at the center of the storage battery body 20 in the depth direction. The position where the handle 23 is moved upward is a use position where the battery module 11 can be carried, and the position where the handle 23 is moved downward is a storage position superimposed on the storage battery body 20.

  A fixing portion 30 is projected from both connecting portions 29 of the handle 23 toward the outer side. The fixing unit 30 is disposed on a fixing member on the housing 13 side when the storage battery module 11 is housed in the housing 13, and is fixed to the fixing member on the housing 13 side with a screw (not shown). The fixing portion 30 is provided with a fixing hole 31 through which a screw is inserted. The fixing hole 31 of the fixing portion 30 is not provided on the center line a at the center in the depth direction of the storage battery body 20, but at a position shifted to one side in the depth direction from the center line a, that is, at a position offset from the terminal block 22 side. It has been.

  The storage battery module 11 configured in this manner is provided with a terminal block 22 at a position shifted to one side in the depth direction on the upper surface of the storage battery main body 20, so the orientation (directionality) according to the position of the terminal block 22 )have. When the storage battery module 11 is incorporated in the housing 13, the direction in which the terminal block 22 faces outward in the depth direction in the housing 13 is set as a predetermined direction. In the predetermined direction of the storage battery module 11, the wiring work between the terminal block 22 and the control unit 12 arranged on the upper side of the storage battery module 11 can be facilitated.

  The storage battery device 10 includes a misassembly prevention structure 33 for preventing the storage battery module 11 from being incorporated into the housing 13 in a direction different from the predetermined direction.

  The misassembly prevention structure 33 is provided on each of the storage battery module 11 side and the housing 13 side. In the storage battery module 11 side misassembly prevention structure 33, the fixing hole 31 provided in the fixing portion 30 of the handle 23 is not on the center line a in the depth direction center of the upper end surface of the storage battery body 20, but on the center line a. It is provided at a position shifted to one side in the depth direction, that is, at a position offset from the terminal block 22 side.

  Further, as shown in FIG. 3, the control unit 12 is called a power management device (Battery Management Unit), and monitors the charge / discharge current of each storage battery module 11 or, for example, the voltage or temperature of each storage battery module 11. The battery module 11 is protected when an abnormality is detected, and communicates with an external device such as an external controller to notify the external device of information on the battery module 11.

  The control unit 12 includes a case 35. On both side surfaces of the case 35, a plurality of power connectors 36 connected to the power terminals 26 of the respective storage battery modules 11 by power lines are provided. A communication connector connected to the communication terminal 27 of one storage battery module 11 via a communication line is provided on one side surface of the case 35. One storage battery module 11 is sequentially connected in series to each storage battery module 11 via a communication line. Further, an external connection terminal block to which a power supply line and a signal line from an external device are connected is provided at one end of the control unit 12. The control unit 12 is attached to the housing 13 by an attachment member 37 and is disposed above the plurality of storage battery modules 11.

  As shown in FIGS. 1 and 3, the housing 13 has a double structure including a frame body 40 as an inner frame and a cover body 41 as an outer frame covering the frame body 40. .

  The frame body 40 includes a bottom plate 43, side plates 44 on both sides, and end plates 45 on both ends, and is provided in a frame shape with an upper surface opened. At the upper ends of both ends of the frame body 40, a handle 46 for transportation is provided.

  Inside the frame body 40, a plurality of storage portions 47 for storing the storage battery modules 11 so as to be detachable from above are formed. The storage units 47 are arranged in two rows in the depth direction, which is one direction in the housing 13, and in each row three in the width direction of the housing 13, and each compartment is partitioned.

  The bottom plate 43 of the frame body 40 is provided with a lower partition member 48 that partitions between the storage portions 47 in two rows in the depth direction. An upper partition member 49 is provided between the upper portions of both end plates 45 of the frame body 40 to partition the storage portions 47 in two rows in the depth direction. Between the upper parts of the side plates 44 of the frame body 40, an upper partition member 50 that partitions the three storage portions 47 in the width direction is provided. Furthermore, a partition plate 51 that partitions the three storage portions 47 in the width direction is provided below each partition member 50.

  By inserting each storage battery module 11 into each storage portion 47, the fixing portion 30 of the handle 23 of each storage battery module 11 is disposed on the fixing member 52 of the frame body 40. The fixing member 52 includes an upper member of both end plates 45 of the frame body 40 and each partition member 50. The fixing portion 30 is fixed to the fixing member 52 by screwing the screw into the mounting hole 53 provided in the fixing member 52 through the fixing hole 31 of the fixing portion 30. The mounting hole 53 of the fixing member 52 has a center line a in the center in the depth direction of the storage portion 47 (the center line in the depth direction of the storage portion 47 is the center line in the center in the depth direction of the storage battery module 11 stored in the storage portion 47. Since it coincides with a, it is not at a position on the center line a), but at a position shifted to the outside in the depth direction of the storage portion 47 from the center line a.

  Then, the storage battery module 11 (the two storage battery modules 11 on the left side in FIG. 1) can be inserted into the storage portion 47 in a predetermined direction in which the terminal block 22 is outward in the depth direction of the casing 13, and the terminal block 22 is mounted on the casing The storage battery module 11 (the rightmost storage battery module 11 in FIG. 1) can be inserted even in the reverse direction which is the inward direction of 13 in the depth direction.

  Therefore, the storage battery device 10 includes a misassembly prevention structure 33 for preventing the storage battery module 11 from being incorporated into the housing 13 in a direction different from the predetermined direction.

  The misassembly prevention structure 33 is provided on each of the storage battery module 11 side and the housing 13 side. The misassembly prevention structure 33 on the housing 13 side is such that the mounting hole 53 provided in the fixing member 52 is not on the center line a at the center in the depth direction of the storage portion 47 but on the outside in the depth direction from the center line a. It is provided at the position.

  The cover body 41 of the housing 13 covers a bottom surface cover 55 that covers the bottom surface of the frame body 40, a side surface cover 56 that covers both sides of the frame body 40, an end surface cover 57 that covers both ends of the frame body 40, and an upper surface of the frame body 40. An upper cover 58 is provided. These covers 55 to 58 cover the entire frame body 40 and have a waterproof structure in which the respective joint portions are combined in a liquid-tight manner. The bottom cover 55 is provided with a stand 59 for installing the storage battery device 10 vertically in a predetermined place.

  The housing 13 includes a main body 60 in which the frame body 40 and the covers 55 to 58 of the cover body 41 are integrally assembled. An opening 61 that allows the storage battery module 11 to be attached and detached is provided on the upper surface of the main body 60, and an upper surface cover 58 is detachably attached to the upper surface of the main body 60.

  And installation of the storage battery device 10 of the first embodiment will be described.

  Carry the housing 13 and the plurality of storage battery modules 11 that are in a separated state individually to the installation location, install the main body 60 of the housing 13, and insert each storage battery module 11 into each storage section 47 of the main body 60 from above And store. In this way, since the separated housing 13 and each storage battery module 11 can be individually carried to the installation location and installed, even if the storage battery module 11 is large, the burden on the operator performing the installation is reduced. can do.

  When the storage battery module 11 is inserted into the storage section 47 of the main body 60, as in the two storage battery modules 11 on the left side of FIG. The storage battery module 11 is inserted into the storage part 47 of the main body part 60. Thus, when the storage battery module 11 is inserted into the housing part 47 of the main body part 60 in a predetermined orientation, the fixing hole 31 of the fixing part 30 of the handle 23 matches the mounting hole 53 of the fixing member 52 of the housing 13, The battery module 11 can be fixed to the housing 13 side by screwing the screw into the mounting hole 53 of the fixing member 52 through the fixing hole 31 of the fixing portion 30.

  On the other hand, for example, when the first storage battery module 11 is inserted from a state where no storage battery module 11 is stored in the storage section 47 of the main body section 60, the terminal block 22 of the storage battery module 11 is connected to the main body section 60. It may be inserted in the reverse direction that is inward in the depth direction. Then, as in the rightmost storage battery module 11 of FIG. 1, when the storage battery module 11 is inserted into the storage portion 47 of the main body portion 60 with the terminal block 22 facing inward in the depth direction of the main body portion 60. The fixing hole 31 of the fixing portion 30 of the handle 23 does not coincide with the mounting hole 53 of the fixing member 52 of the housing 13, and the storage battery module 11 cannot be fixed to the housing 13 side with a screw. Therefore, the operator can grasp that the direction of the storage battery module 11 is reverse and can reinsert the storage battery module 11 with the direction of the storage battery module 11 as a predetermined direction.

  When a predetermined number of storage battery modules 11 are stored in the main body 60, the control unit 12 is attached to the upper side of the main body 60, and each storage battery module 11 and the control unit 12 are connected. At this time, since the terminal block 22 of each storage battery module 11 is located outward in the depth direction of the main body 60, the power supply terminal 26 and the communication terminal 27 on both side surfaces of the terminal block 22 of each storage battery module 11 and the control unit 12 Wiring operations such as wiring of power lines and signal lines between the storage battery modules and wiring of signal lines between the storage battery modules 11 can be easily performed. Also, wiring work between the control unit 12 and the external device is performed.

  When the wiring work is completed, the installation of the storage battery device 10 is completed by attaching the upper surface cover 58 to the upper surface of the main body 60.

  Thus, according to the storage battery device 10 of the first embodiment, the storage battery module 11 is prevented from being incorporated in the housing 13 in a direction different from the predetermined direction by including the misassembly prevention structure 33. Can do.

  That is, the misassembly prevention structure 33 allows the storage battery module 11 to be fixed to the main body 60 when the storage battery module 11 is inserted into the main body 60 in a predetermined orientation, and the storage battery module 11 is in a direction different from the predetermined orientation. By preventing the storage battery module 11 from being fixed to the main body 60 when inserted into the main body 60, the storage battery module 11 can be prevented from being incorporated in the housing 13 in a direction different from the predetermined direction.

  Furthermore, the misassembly prevention structure 33 prevents misassembly with a simple configuration by also using a fixing structure in which the fixing portion 30 provided on the handle 23 of the storage battery module 11 is screwed to the fixing member 52 on the housing 13 side. Can be planned. That is, when the storage battery module 11 is inserted into the main body portion 60 in a predetermined direction, the fixing hole 31 of the fixing portion 30 matches the mounting hole 53 of the fixing member 52 on the housing 13 side and can be screwed. When the storage battery module 11 is inserted into the main body 60 in a direction different from the predetermined direction, the fixing hole 31 of the fixing part 30 does not coincide with the mounting hole 53 of the fixing member 52 on the housing 13 side, and is screwed By disabling it, it is possible to prevent erroneous assembly with a simple configuration.

  Next, a second embodiment will be described with reference to FIGS.

  As shown in FIG. 5, the storage battery module 11 includes a regulation protrusion 65 that protrudes from the lower surface of the storage battery body 20. The restricting protrusion 65 has a plate shape and is provided with a substantially L-shaped cross section in which the tip end side is bent toward one side in the depth direction of the storage battery body 20 (terminal block 22 side). The regulation protrusion 65 is a position shifted to one side in the depth direction of the lower surface of the storage battery body 20 (not the center line a in the depth direction center of the storage battery body 20 but a position shifted to the depth direction one side from the center line a. ), That is, projecting from a position offset toward the terminal block 22 side of the storage battery main body 20.

  As shown in FIGS. 6 and 7, the bottom plate 43 of the frame body 40 of the housing 13 is provided with a groove portion 66 into which the regulation protrusion 65 of the storage battery module 11 inserted into each storage portion 47 enters in a predetermined direction. It has been. The groove 66 is provided not at a position on the center line at the center in the depth direction of the storage section 47 but at a position shifted to the outside in the depth direction of the storage section 47 from the center line.

  The misassembly prevention structure 33 includes a regulation protrusion 65 of the storage battery module 11, a bottom plate 43 having a groove 66 of the housing 13, and the like. The misassembly prevention structure 33 allows the storage battery module 11 to be inserted up to a predetermined installation position when the storage battery module 11 is inserted into the main body 60 in a predetermined orientation, and the storage battery module 11 is inserted into the main body 60 in a direction different from the predetermined orientation. In such a case, it is impossible to insert until a predetermined installation position.

  FIG. 6 shows a case where the storage battery module 11 is inserted into the main body 60 in a predetermined direction. When the regulation protrusion 65 of the storage battery module 11 coincides with the position of the groove 66 of the bottom plate 43, the regulation projection 65 enters the groove 66 of the bottom plate 43, and the bottom surface of the storage battery module 11 contacts the upper surface of the bottom plate 43. Is inserted up to the installation position.

  FIG. 7 shows a case where the storage battery module 11 is inserted into the main body 60 in the direction opposite to the predetermined direction. The regulation protrusion 65 of the storage battery module 11 does not coincide with the position of the groove portion 66 of the bottom plate 43, and the regulation projection 65 is brought into contact with the upper surface of the bottom plate 43 and stopped, so that the storage battery module 11 is not inserted to a predetermined installation position. A gap is generated between the bottom surface of the storage battery module 11 and the top surface of the bottom plate 43, and the position of the upper end portion of the storage battery module 11 is increased. Therefore, the operator may grasp that the direction is opposite due to the height difference from the other storage battery module 11 inserted in a predetermined direction, or arrange the control unit 12 above the storage battery module 11. It becomes difficult to grasp the reverse direction, and the storage battery module 11 can be reinserted as a predetermined direction.

  In the erroneous assembly prevention structure 33 of the second embodiment, when the storage battery module 11 is inserted into the main body 60 in a predetermined orientation, it can be inserted up to a predetermined installation position. When the battery module 11 is inserted into the main body 60 in a different orientation, the battery module 11 can be prevented from being incorporated in the housing 13 in a direction different from the predetermined orientation by disabling insertion to a predetermined assembly position.

  Moreover, it can be easily understood from the height position of the upper end portion of the storage battery module 11 that the storage battery module 11 is inserted into the main body 60 in a direction different from the predetermined direction.

  Furthermore, by providing the regulating protrusion 65 on the lower surface of the storage battery module 11 and providing the groove 66 on the bottom plate 43 of the housing 13, it is possible to prevent erroneous assembly with a simple configuration.

  Even if the restricting protrusion 65 is provided so as to protrude upward from the bottom plate 43, and the groove 66 is provided on the storage battery module 11 side, similar misassembly prevention can be achieved.

  Next, a third embodiment will be described with reference to FIGS.

  The storage battery module 11 includes a holder 69 fixed to the bottom surface of the storage battery body 20. The holder 69 is provided with a protruding portion 70 that protrudes to the other side in the depth direction of the storage battery main body 20 (the side opposite to the terminal block 22). The protrusion 70 is bent upward from the holder 69 and protrudes to a position away from the side surface of the storage battery main body 20.

  The housing 13 includes a latch portion 71 provided in a part of the partition member 48 between the storage portions 47 arranged in the depth direction. The latch portion 71 has a spring property that enables elastic deformation in the depth direction, and a bent portion 72 that is bent in a substantially square shape toward the inside of the storage portion 47 is provided at the upper end.

  The misassembly prevention structure 33 includes a protruding portion 70 of the storage battery module 11, a latch portion 71 of the housing 13, and the like. The misassembly prevention structure 33 generates a predetermined built-in sound when the storage battery module 11 is inserted into the housing 13 in a predetermined orientation, and the storage battery module 11 is inserted into the housing 13 in an orientation different from the predetermined orientation. The built-in sound cannot be generated.

  FIG. 8 shows a case where the storage battery module 11 is inserted into the main body 60 in a predetermined direction. When inserting the storage battery module 11 into the main body 60, the protruding portion 70 of the storage battery module 11 abuts against the bent portion 72 of the latch 71, and the latch 71 is elastically deformed outwardly away from the storage battery main body 20, and When the projecting portion 70 passes the position of the bent portion 72, due to the spring property of the latch portion 71, the bent portion 72 strikes the storage battery body 20 vigorously, and a built-in sound that is an impact sound is generated, or the bent portion of the latch portion 71 A built-in sound, which is an impact sound, is generated when the lower part of 72 hits the protruding part 70 vigorously. Therefore, the operator can easily grasp that the storage battery module 11 has been installed in the housing 13 in a predetermined direction from the occurrence of the built-in sound.

  FIG. 9 shows a case where the storage battery module 11 is inserted into the main body 60 in the direction opposite to the predetermined direction. When the storage battery module 11 is inserted into the main body portion 60, the protruding portion 70 of the storage battery module 11 does not contact the latch portion 71, and no impact sound is generated. Therefore, since no built-in sound is generated, the operator can easily grasp that the storage battery module 11 has been assembled in the housing 13 in a direction different from the predetermined direction.

  In the misassembly prevention structure 33 of the third embodiment, a predetermined built-in sound is generated when the storage battery module 11 is inserted into the housing 13 in a predetermined direction, and the storage battery module 11 is different from the predetermined direction. By disabling the built-in sound when inserted into the housing 13 in the orientation, it is possible to prevent the storage battery module 11 from being incorporated into the housing 13 in a direction different from the predetermined orientation.

  Further, by providing the storage battery module 11 with the protruding portion 70 and the main body portion 60 with the latch portion 71, it is possible to prevent erroneous assembly with a simple configuration.

  Even if the protruding portion 70 is provided on the main body portion 60 side and the latch portion 71 is provided on the storage battery module 11 side, similar misassembly prevention can be achieved.

  Next, a fourth embodiment will be described with reference to FIGS. 10 and 11.

  In addition to the configuration of the third embodiment described above, a locking portion 73 is provided at the tip of the protruding portion 70 of the storage battery module 11.

  The misassembly prevention structure 33 includes a projecting portion 70 having a locking portion 73 of the storage battery module 11, a latch portion 71 of the housing 13, and the like. The misassembly prevention structure 33 is configured to fix the storage battery module 11 to the main body 60 when the storage battery module 11 is inserted into the main body 60 in a predetermined orientation, and to store the storage battery module 11 in a direction different from the predetermined orientation. The battery module 11 cannot be fixed to the main body 60 when inserted into the main body 60.

  FIG. 10 shows a case where the storage battery module 11 is inserted into the main body 60 in a predetermined direction. When the storage battery module 11 is inserted into the main body 60, the protrusion 70 of the storage battery module 11 abuts on the bent portion 72 of the latch portion 71, elastically deforms the latch portion 71, and the protrusion 70 is positioned at the bent portion 72. , The bent portion 72 engages with the locking portion 73 of the projecting portion 70 due to the spring property of the latch portion 71, and the storage battery module 11 is fixed to the main body portion 60. Therefore, when the operator lifts the storage battery module 11 slightly for confirmation of insertion, a sense of resistance is generated until the locking portion 73 comes off the latch portion 71, so that the storage battery module 11 is placed in the housing 13 in a predetermined direction. You can easily grasp that it was incorporated. In this case as well, since a built-in sound that is an impact sound is generated when the latch portion 71 engages with the protruding portion 70, it is possible to grasp that the storage battery module 11 has been incorporated into the housing 13 in a predetermined orientation. .

  FIG. 11 shows a case where the storage battery module 11 is inserted into the main body 60 in the direction opposite to the predetermined direction. When the storage battery module 11 is inserted into the main body portion 60, the protruding portion 70 of the storage battery module 11 does not contact the latch portion 71, and the storage battery module 11 is not fixed to the main body portion 60. Therefore, when the operator lifts the storage battery module 11 slightly for confirmation of insertion, it lifts up without feeling a sense of resistance, so it is easy for the storage battery module 11 to be incorporated in the housing 13 in a direction different from the predetermined direction. Can grasp. In this case as well, since the built-in sound that is an impact sound is not generated when the latch portion 71 is engaged with the protruding portion 70, it can be grasped that the storage battery module 11 is incorporated in the housing 13 in a predetermined orientation. .

  In the erroneous assembly prevention structure 33 of the fourth embodiment, when the storage battery module 11 is inserted into the main body 60 in a predetermined orientation, the storage battery module 11 is fixed to the main body 60, and the storage battery module 11 is in a predetermined orientation. By preventing the storage battery module 11 from being fixed to the main body 60 when it is inserted into the main body 60 in a direction different from the direction, the storage battery module 11 is prevented from being incorporated into the housing 13 in a direction different from the predetermined direction. can do.

  Furthermore, by providing the storage battery module 11 with the protruding portion 70 having the locking portion 73 and providing the main body portion 60 with the latch portion 71, it is possible to prevent erroneous assembly with a simple configuration.

  Even if the protruding portion 70 having the locking portion 73 is provided on the main body portion 60 side and the latch portion 71 is provided on the storage battery module 11 side, similar misassembly prevention can be achieved.

  Next, a fifth embodiment will be described with reference to FIGS.

  The casing 13 is vertically placed with the opening 61 of the main body 60 shown in FIG. 12 facing upward, and one side surface in the depth direction of the main body 60 shown in FIG. It can be installed either horizontally or horizontally. The casing 13 is installed in such a direction that a predetermined one side surface in the depth direction of the casing 13 is an upper surface and a predetermined other side surface is a lower surface when placed horizontally.

  The storage battery module 11 has the same structure as that of the above-described second embodiment (see FIG. 5), and a restriction protrusion 65 protrudes from the lower surface of the storage battery body 20. The restricting protrusion 65 protrudes from a position shifted to one side in the depth direction of the lower surface of the storage battery body 20, that is, a position offset toward the terminal block 22 side of the storage battery body 20.

  In the bottom plate 43 of each storage section 47 of the housing 13, the groove portion into which the regulation projection 65 of the storage battery module 11 inserted into each storage section 47 in a direction in which the terminal block 22 faces outward in the depth direction of the main body section 60 enters. A (first groove portion) 66 is provided. The groove 66 is provided not at a position on the center line at the center in the depth direction of the storage section 47 but at a position shifted to the outside in the depth direction of the storage section 47 from the center line.

  When the housing 13 is placed horizontally, the regulation projection 65 of the storage battery module 11 inserted into the storage unit 47 enters the bottom plate 43 of each storage unit 47 positioned on the lower side so that the terminal block 22 is positioned on the upper side. A second groove 76 is provided. The second groove 76 is not a position on the center line in the depth direction of the storage portion 47, but a position shifted from the center line to the inside in the depth direction of the storage portion 47. It is provided at a position shifted to the upper side of the storage portion 47 from the center line.

  A lid 77 is swingably attached between the groove 66 and the second groove 76 on the bottom plate 43 of each storage portion 47 located on the lower side when the housing 13 is placed horizontally. The lid body 77 has a flat plate shape, and a shaft portion protruding from both ends is rotatably supported by a bearing portion 78 provided on the bottom plate 43. The bearing portion 78 is formed by cutting and raising the bottom plate 43 in an arc shape. The lid body 77 closes the groove portion 66 in a state where the cover body 77 is tilted toward the groove portion 66, and closes the second groove portion 76 in a state where the lid body 77 is tilted toward the second groove portion 76.

  In the storage battery module 11 inserted into the storage portion 47 located on the lower side when the housing 13 is placed horizontally, the direction in which the terminal block 22 is located on the upper side is a predetermined direction. This is because when the terminal block 22 is positioned on the lower side, the terminal block 22 is close to the installation surface, and it is difficult to perform wiring work on the terminal block 22. Therefore, the terminal block 22 is preferably positioned on the upper side. Because.

  The misassembly prevention structure 33 includes a regulation protrusion 65 of the storage battery module 11, a bottom plate 43 having a groove 66 and a second groove 76 of the housing 13, a lid 77, and the like.

  The incorrect assembly prevention structure 33 is installed when the terminal block 22 of the storage battery main body 20 is inserted into the main body 60 in a predetermined direction that is outward in the depth direction in the main body 60 when the housing 13 is placed vertically. When the terminal block 22 of the storage battery main body 20 is inserted into the main body 60 in a direction different from the predetermined direction that is outward in the depth direction in the main body 60, it cannot be inserted to the predetermined installation position. To do.

  The misassembly prevention structure 33 is inserted into the main body portion 60 in a predetermined orientation in which the terminal block 22 of the storage battery main body 20 is located on the upper side for all the storage battery modules 11 incorporated in the housing 13 when the housing 13 is placed horizontally. Can be inserted up to a predetermined mounting position, and when the terminal block 22 of the storage battery body 20 is inserted into the main body 60 in a direction different from the predetermined direction positioned on the upper side, the insertion is not possible up to the predetermined mounting position. .

  FIG. 12 and FIG. 13 (plan view) show a vertically placed state of the housing 13. When the casing 13 is placed vertically, the lid body 77 is disposed at a position where the second groove portion 76 is closed, and is held at that position by its own weight.

  When the storage battery module 11 is inserted into the storage unit 47 in a predetermined direction, that is, the terminal block 22 is outward in the depth direction of the main body 60, the regulation protrusion 65 of the storage battery module 11 is positioned at the position of the groove 66 of the bottom plate 43. By matching, the restricting projection 65 enters the groove 66 of the bottom plate 43, and is inserted to a predetermined assembly position where the bottom surface of the storage battery module 11 contacts the top surface of the bottom plate 43.

  When the storage battery module 11 is inserted into the storage unit 47 in a direction opposite to a predetermined direction, that is, in a reverse direction in which the terminal block 22 is inward in the depth direction of the main body 60, the regulation protrusion 65 of the storage battery module 11 is The regulation protrusion 65 does not coincide with the position of the groove portion 66 of the bottom plate 43 and stops by contacting the top surface of the bottom plate 43, so that the storage battery module 11 is not inserted to a predetermined installation position, and the bottom surface of the storage battery module 11 and the bottom plate 43 A gap is formed between the upper surface of the battery module 11 and the position of the upper end of the storage battery module 11 is increased. Therefore, the operator may grasp that the direction is opposite due to the height difference from the other storage battery module 11 inserted in a predetermined direction, or arrange the control unit 12 above the storage battery module 11. It becomes difficult to grasp the reverse direction, and the storage battery module 11 can be reinserted as a predetermined direction.

  FIG. 14 and FIG. 15 (front view) show the horizontal state of the housing 13. The main body portion 60 of the housing 13 is transported to the installation location in the vertical state using the handle 46, but when installed in the horizontal orientation, a predetermined one side surface in the depth direction of the housing 13 is the upper surface, the predetermined It is installed with the other side facing down. Then, when the main body 60 is changed from the vertical orientation to the horizontal orientation, as shown in FIG. 14, the lid 77 swings downward by its own weight, opens the upper second groove 76, and lowers the lower portion. The groove 66 is closed. As a result, the grooves 66 and 76 are opened on the upper side of the bottom plate 43 of the storage portions 47 that are horizontally arranged.

  When the storage battery module 11 is inserted into each of the upper and lower storage portions 47 in a predetermined direction, that is, in a predetermined direction in which the terminal block 22 is located on the upper side, the restricting protrusion 65 of the storage battery module 11 is formed in each groove portion of the bottom plate 43. By matching with the positions of 66 and 76, the regulation projection 65 enters the respective grooves 66 and 76 of the bottom plate 43, and the bottom surface (front end surface in the insertion direction) of the storage battery module 11 contacts the surface of the bottom plate 43. Inserted to position.

  When the storage battery module 11 is inserted in each of the upper and lower storage portions 47 in the opposite direction to the predetermined direction, that is, in the reverse direction in which the terminal block 22 is positioned on the lower side, the regulation protrusion 65 of the storage battery module 11 is the bottom plate 43, the position of each of the grooves 66 and 76 does not match, and the restricting projection 65 abuts against the surface of the bottom plate 43 or the lid 77, so that the storage battery module 11 is not inserted to the predetermined installation position, and the storage battery module A gap is generated between the bottom surface of 11 and the surface of the bottom plate 43 or the lid 77, and the storage battery module 11 projects from the opening 61 of the main body 60. Therefore, it is difficult for the operator to grasp that the direction is opposite due to the difference in insertion position with the other storage battery module 11 inserted in a predetermined direction, or to dispose the control unit 12 on the storage battery module 11. As a result, it is possible to grasp the reverse direction and insert the storage battery module 11 in a predetermined direction.

  In the misconfiguration prevention structure 33 of the third embodiment, when the casing 13 is placed vertically, the terminal block 22 of the storage battery main body 20 faces the main body portion 60 in a predetermined direction that is outward in the depth direction in the main body portion 60. When it is inserted, it can be inserted up to a predetermined installation position, and the terminal block 22 of the storage battery main body 20 is inserted into the main body 60 in a direction different from the predetermined direction that is outward in the depth direction in the main body 60. By disabling insertion to a predetermined assembly position, it is possible to prevent the storage battery module 11 from being assembled into the housing 13 in a direction different from the predetermined direction.

  Further, the misassembly prevention structure 33 is provided in the main body 60 with a predetermined orientation in which the terminal block 22 of the storage battery main body 20 is located on the upper side for all the storage battery modules 11 incorporated in the housing 13 when the housing 13 is placed horizontally. When inserted, it can be inserted up to a predetermined installation position, and when the terminal block 22 of the storage battery body 20 is inserted into the main body 60 in a direction different from the predetermined direction positioned on the upper side, the insertion cannot be performed up to the predetermined installation position. By doing so, it is possible to prevent the storage battery module 11 from being incorporated into the housing 13 in a direction different from the predetermined direction.

  Moreover, when placed horizontally, the lid body 77 is automatically switched by changing the body part 60 sideways, and the orientation in which the storage battery module 11 can be inserted is switched. In this way, it is possible to prevent erroneous assembly.

  The lid 77 is not limited to the configuration that swings and switches with respect to the bottom plate 43, but may be configured to slide and switch along the bottom plate 43.

  In addition, when the housing 13 is placed horizontally, if any of the side surfaces in the depth direction of the housing 13 can be installed upward, any of the storage units 47 in the depth direction of the housing 13 can be used. In addition, if the second groove 76 and the lid 77 are provided, it is possible to prevent erroneous assembly.

  Next, a sixth embodiment will be described with reference to FIGS. 16 and 17.

  The control unit 12 is disposed at the bottom of the main body 60 of the housing 13, and the storage battery module 11 is disposed above the control unit 12.

  The storage battery module 11 has a regulation protrusion 65 and a storage battery side connector 81 protruding from the lower surface of the storage battery main body 20. The restricting protrusion 65 has the same configuration as that of the above-described second embodiment (see FIG. 5), and is located at a position shifted to one side in the depth direction on the lower surface of the storage battery body 20, that is, on the terminal block 22 side of the storage battery body 20. Projected from the offset position. Further, the storage battery side connector 81 is electrically connected to the control unit 12, and may be either for power connection, for signal connection, or for both power connection and signal connection. The storage battery side connector 81 protrudes from a position shifted to the other side in the depth direction of the lower surface of the storage battery main body 20, that is, a position offset to the opposite side to the terminal block 22 of the storage battery main body 20. Further, the protruding amount of the regulation protrusion 65 from the lower surface of the storage battery main body 20 is larger than the protruding amount of the storage battery side connector 81. The storage battery module 11 has the terminal block 22 at the upper end, but the terminal block 22 may be omitted when the storage battery side connector 81 is used for both power connection and signal connection. The storage battery side connector 81 has a terminal block function.

  In the control unit 12, the regulation of the storage battery module 11 is inserted into each storage section 47 in a direction corresponding to each storage section 47 on the upper surface of the case 35 with the terminal block 22 facing outward in the depth direction of the main body section 60. A groove 82 into which the projection 65 enters is provided, and an insertion hole 83 into which the storage battery side connector 81 is inserted is provided. Below the insertion hole 83, a control side connector 84 to which the storage battery side connector 81 inserted from the insertion hole 83 is connected is arranged. The control side connector 84 is mounted in the case 35 by a mounting base 85.

  The misassembly prevention structure 33 includes a regulation protrusion 65 and a storage battery side connector 81 of the storage battery module 11, a case 35 having a groove 82 and an insertion hole 83 of the control unit 12 disposed at the bottom of the housing 13, and a control. The side connector 84 and the like are included. The misassembly prevention structure 33 enables connection to the control unit 12 when the storage battery module 11 is inserted into the main body 60 in a predetermined orientation, and the storage battery module 11 is inserted into the main body 60 in an orientation different from the predetermined orientation. Connection to the control unit 12 is disabled.

  FIG. 16 shows a case where the storage battery module 11 is inserted into the main body 60 in a predetermined direction. When the regulation protrusion 65 and the storage battery side connector 81 of the storage battery module 11 coincide with the positions of the groove 82 and the insertion hole 83 of the case 35, respectively, the regulation projection 65 and the storage battery side connector 81 become the groove 82 and the insertion hole of the case 35. The battery module 11 is inserted into a predetermined assembly position where the bottom surface of the storage battery module 11 comes into contact with the top surface of the bottom plate 43, and the storage battery side connector 81 is connected to the control side connector 84 at that time.

  FIG. 17 shows a case where the storage battery module 11 is inserted into the main body 60 in the direction opposite to the predetermined direction. The regulation protrusion 65 and the storage battery side connector 81 of the storage battery module 11 do not coincide with the positions of the groove part 82 and the insertion hole 83 of the case 35, and the regulation projection 65 comes into contact with the upper surface of the case 35 and stops. Is not inserted to a predetermined assembly position, a gap is formed between the bottom surface of the storage battery module 11 and the top surface of the case 35, and the position of the upper end portion of the storage battery module 11 is increased. Therefore, the operator may grasp that the direction is opposite due to the height difference from the other storage battery module 11 inserted in a predetermined direction, or arrange the control unit 12 above the storage battery module 11. It becomes difficult to grasp the reverse direction, and the storage battery module 11 can be reinserted as a predetermined direction.

  In addition, when the storage battery module 11 is inserted into the main body 60 in a direction opposite to the predetermined direction, the storage battery side connector 81 is not connected to the control side connector 84, so it is grasped that the storage battery module 11 is electrically reverse. The storage battery module 11 can be reinserted with a predetermined orientation.

  In the misassembly prevention structure 33 of the sixth embodiment, when the storage battery module 11 is inserted into the main body 60 in a predetermined direction, it can be connected to the control unit 12, and the storage battery module 11 is different from the predetermined direction. By prohibiting connection to the control unit 12 when inserted into the main body 60 in a direction, it is possible to prevent the storage battery module 11 from being incorporated into the housing 13 in a direction different from the predetermined direction.

  Moreover, since the protruding amount of the regulation protrusion 65 from the lower surface of the storage battery main body 20 is larger than the protruding amount of the storage battery side connector 81, the storage battery module 11 is inserted into the main body 60 in the direction opposite to the predetermined direction. Even in this case, it is possible to prevent the storage battery side connector 81 from coming into contact with the upper surface of the case 35 and applying a load, thereby protecting the storage battery side connector 81.

  In addition, since the control unit 12 is arranged at the bottom of the housing 13, the connector connection between the control unit 12 and the storage battery module 11 is possible and can be easily connected. Further, when replacing the storage battery module 11 due to the life of the storage battery module 11 or the like, the storage battery module 11 can be replaced without removing the control unit 12, and workability can be improved.

  The storage battery module 11 preferably has the regulation protrusion 65, but it is sufficient that it includes at least the storage battery side connector 81.

  Next, a seventh embodiment will be described with reference to FIGS.

  The storage battery module 11 is provided with an insertion restricting portion 88 that protrudes laterally from the lower end side that is the insertion end portion side to the main body portion 60. The insertion restricting portion 88 is, for example, a part of a member disposed on the lower surface side of the storage battery main body 20 bent and protruded to the side of one side surface of the storage battery main body 20. Good. Further, the insertion restricting portion 88 only needs to be protruded from at least one place on one side surface of the storage battery main body 20.

  The side plate 44 of the frame body 40 of the housing 13 is provided with an entry portion 89 into which the insertion restriction portion 88 of the storage battery module 11 inserted into the storage portion 47 is inserted in a predetermined direction. The entry portion 89 is a groove that opens into the storage portion 47 and is formed across the entire vertical direction of the storage portion 47.

  The misassembly prevention structure 33 includes an insertion restricting portion 88 of the storage battery module 11, an entry portion 89 of the housing 13, a partition member 49, and the like. The misassembly prevention structure 33 allows the storage battery module 11 to be inserted into the main body 60 in a predetermined direction, and restricts the storage battery module 11 from being inserted into the main body 60 in a direction different from the predetermined direction. .

  FIG. 18 shows a case where the storage battery module 11 is inserted into the main body 60 in a predetermined direction. When the insertion restricting portion 88 of the storage battery module 11 matches the position of the entry portion 89 of the main body portion 60, the insertion restriction portion 88 enters the entry portion 89 of the main body portion 60, and the storage battery module 11 is inserted into the main body portion 60. The

  FIG. 19 shows a case where the storage battery module 11 is inserted into the main body 60 in the direction opposite to the predetermined direction. The insertion restricting portion 88 of the storage battery module 11 does not coincide with the position of the entry portion 89 of the main body 60, and the insertion restricting portion 88 abuts on the upper surface of the partition member 49 to restrict the insertion. Therefore, the operator can recognize that the storage battery module 11 is in the reverse direction because the storage battery module 11 cannot be inserted, and can reinsert the storage battery module 11 with a predetermined direction.

  In the misconfiguration prevention structure 33 of the seventh embodiment, the storage battery module 11 can be inserted into the main body 60 in a predetermined orientation, and the storage battery module 11 is oriented in a direction different from the predetermined orientation. By restricting the battery module 11 from being inserted into the housing 13, it is possible to prevent the storage battery module 11 from being incorporated into the housing 13 in a direction different from the predetermined direction.

  And since it can grasp | ascertain that direction changes when trying to insert the storage battery module 11 in the main-body part 60, assembly workability | operativity can be improved.

  In addition, the outer surface shape of the storage battery main body 20 of the storage battery module 11 is formed in a different shape that can obtain directionality, and the inner surface shape of the storage portion 47 of the main body portion 60 is matched to the outer surface shape of the storage battery main body 20. Therefore, it is possible to prevent erroneous assembly.

  Next, an eighth embodiment will be described with reference to FIGS.

  The storage battery module 11 is provided with a guide portion 92 that protrudes laterally from a lower end side that is an insertion end portion side to the main body portion 60. For example, the guide portion 92 is formed by bending a part of a member disposed on the lower surface side of the storage battery main body 20 and projecting it to the side of one side surface of the storage battery main body 20, but may be provided in the case 25. . The guide portion 92 only needs to protrude from at least one location on one side of the storage battery main body 20, but in this embodiment, the guide portion 92 protrudes from two locations on one side of the storage battery main body 20. The guide portion 92 may be provided along the vertical direction of the storage battery main body 20.

  The side plate 44 of the frame body 40 of the housing 13 is provided with a guide rail portion 93 for inserting the guide portion 92 of the storage battery module 11 inserted into the storage portion 47 in a predetermined direction and guiding the insertion. The guide rail portion 93 has a guide groove 94 that opens into the storage portion 47, and is formed across the entire vertical direction of the storage portion 47.

  The misassembly prevention structure 33 includes a guide portion 92 of the storage battery module 11, a guide rail portion 93 of the housing 13, a partition member 49, and the like. The misassembly prevention structure 33 allows the storage battery module 11 to be inserted into the main body 60 in a predetermined direction, and restricts the storage battery module 11 from being inserted into the main body 60 in a direction different from the predetermined direction. .

  FIG. 20 shows a case where the storage battery module 11 is inserted into the main body 60 in a predetermined direction. When the guide portion 92 of the storage battery module 11 coincides with the position of the guide rail portion 93 (guide groove 94) of the main body portion 60, the guide portion 92 is inserted into the guide rail portion 93 (guide groove 94) and guided. The storage battery module 11 is inserted into the main body 60.

  FIG. 21 shows a case where the storage battery module 11 is inserted into the main body 60 in the direction opposite to the predetermined direction. The guide part 92 of the storage battery module 11 does not coincide with the position of the guide rail part 93 (guide groove 94) of the main body part 60, and the guide part 92 abuts on the upper surface of the partition member 49 to restrict insertion. Therefore, the operator can recognize that the storage battery module 11 is in the reverse direction because the storage battery module 11 cannot be inserted, and can reinsert the storage battery module 11 with a predetermined direction.

  Further, in the erroneous assembly prevention structure 33 of the eighth embodiment, the storage battery module 11 can be inserted into the main body 60 in a predetermined orientation, and the storage battery module 11 is oriented in a direction different from the predetermined orientation. By restricting the battery module 11 from being inserted into the housing 13, it is possible to prevent the storage battery module 11 from being incorporated into the housing 13 in a direction different from the predetermined direction.

  And since it can grasp | ascertain that direction changes when trying to insert the storage battery module 11 in the main-body part 60, assembly workability | operativity can be improved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

10 Storage battery device
11 Battery module
12 Control unit
13 Enclosure
20 Storage battery body
22 Terminal block
33 Misassembly prevention structure
60 Main unit
61 opening

Claims (8)

A plurality of storage battery modules including a storage battery main body and a terminal block provided at a position shifted to one side of the upper surface of the storage battery main body, and having a direction corresponding to the position of the terminal block;
A housing having a main body provided with an opening, and the storage battery module is inserted into the main body from the opening in a predetermined direction;
A misassembly prevention structure for preventing the storage battery module from being incorporated in the housing in a direction different from a predetermined direction;
A storage battery device comprising: The erroneous assembly prevention structure allows the storage battery module to be inserted into the main body in a predetermined direction, and restricts the storage battery module from being inserted into the main body in a direction different from the predetermined direction. The storage battery device according to claim 1. The erroneous assembly prevention structure allows the storage battery module to be inserted up to a predetermined installation position when the storage battery module is inserted into the main body in a predetermined direction, and the storage battery module is inserted into the main body in a direction different from the predetermined direction. The storage battery device according to claim 1, wherein in such a case, the battery cannot be inserted up to a predetermined installation position. The housing is assembled by inserting two rows of the storage battery modules in one direction in the main body, and the vertical position in which the opening of the main body faces upward and one side of the main body in one direction. It can be installed in either the horizontal orientation with the opening of the main body portion facing sideways,
The erroneous assembly prevention structure is
When the casing is placed vertically, when the terminal block of the storage battery main body is inserted into the main body portion in a predetermined direction that is outward in one direction in the main body portion, the storage battery can be inserted to a predetermined installation position, When the terminal block of the main body is inserted into the main body part in a direction different from the predetermined direction that is outward in one direction in the main body part, it cannot be inserted until a predetermined installation position,
When all of the storage battery modules incorporated in the housing are placed horizontally, the terminal block of the storage battery main body is inserted into the main body portion in a predetermined orientation positioned on the upper side. The insertion is impossible until a predetermined installation position when the terminal block of the storage battery main body is inserted into the main body portion in a direction different from a predetermined direction positioned on the upper side. The storage battery device according to 1. Comprising a control unit connected to the storage battery body,
The misassembly prevention structure enables connection to the control unit when the storage battery module is inserted into the main body in a predetermined direction, and the storage battery module is inserted into the main body in a direction different from the predetermined direction. The storage battery device according to claim 1, wherein connection to the control unit is not possible when The storage battery device according to claim 5, wherein the control unit is disposed at a bottom of the housing. The erroneous assembly prevention structure enables the storage battery module to be fixed to the main body when the storage battery module is inserted into the main body in a predetermined orientation, and the storage battery module is oriented in a direction different from the predetermined orientation. The storage battery device according to claim 1, wherein the storage battery module cannot be fixed to the main body when inserted into a part. The erroneous assembly prevention structure generates a predetermined built-in sound when the storage battery module is inserted into the casing in a predetermined direction, and the storage battery module is inserted into the casing in a direction different from the predetermined direction. The storage battery device according to claim 1, wherein the built-in sound is not generated in the case of a failure.

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