JPWO2015029865A1 - Secondary battery unit and secondary battery equipment - Google Patents

Abstract

The present invention relates to a secondary battery unit and secondary battery equipment. The secondary battery unit (10) includes a module battery housing portion (28) formed in a box shape and a control device housing portion formed in a box shape and provided adjacent to the module battery housing portion (28). (30), two or more module batteries (32) in which an assembled battery of two or more unit cells is housed and housed in the module battery housing section (28), and housed in the control device housing section (30), And a control device (38) for controlling at least the module battery (32).

Description

  The present invention relates to a secondary battery unit and a secondary battery facility that can be operated as a secondary battery by combining only a single unit, and that can be operated as a large secondary battery by combining a plurality of units.

  In general, the frequency adjustment of the power system and the adjustment of the power demand and the supply power of the power system are performed by a plurality of generators, storage batteries, and the like in the system. Moreover, adjustment of the difference between the generated power from the natural energy power generation device and the planned output power and the relaxation of fluctuations in the generated power from the natural energy power generation device are often performed by a plurality of generators, storage batteries, and the like. The storage battery can change the output power at a higher speed than a general generator, adjust the frequency of the power system, adjust the difference between the generated power from the natural energy generator and the planned output power, It is effective for adjusting power demand and power supply.

  And as a high temperature operation type storage battery connected to an electric power system, a sodium-sulfur battery (henceforth a NaS battery) is mentioned, for example. This NaS battery is a high-temperature secondary battery having a structure in which metallic sodium and sulfur, which are active materials, are separated and accommodated by a solid electrolyte tube. When heated to a temperature of about 300 ° C., the electricity of both molten active materials is obtained. A predetermined energy is generated by the chemical reaction. In general, the NaS battery is used in the form of a module battery in which a plurality of unit cells are erected and connected to each other. The module battery has a structure in which a circuit (string) in which a plurality of single cells are connected in series is connected in parallel to form a block, and at least two or more blocks are connected in series and then accommodated in a heat insulating container. .

  When using the NaS battery, a plurality of heat insulating containers are stacked (stacked) in the vertical direction to form one module row, and a plurality of the module rows are juxtaposed to form one package. A control device for controlling each module battery is installed (see, for example, JP-A-2008-226488).

However, when a package is installed, the procedure is as follows and there is a problem that man-hours are required.
(A) Individual transport of module batteries, mounts, control devices, etc. to the site (b) Assembly of mounts (c) Installation of parts such as air ducts to secure ventilation routes (d) Installation of module batteries on mounts ( e) Installation of control equipment (f) Wiring work

  The wiring work includes wiring for configuring each module row, wiring between the module row and the control device, and the time required for wiring work increases as the number of module batteries increases.

  The present invention has been made in consideration of such problems, and can be operated as a secondary battery alone, or can be operated as a large secondary battery (package) by combining a plurality of units. An object of the present invention is to provide a secondary battery unit and a secondary battery facility that can significantly reduce the man-hours from requirement definition (including requirement definition) to installation of a package.

[1] A secondary battery unit according to the first aspect of the present invention includes a module battery housing portion formed in a box shape, and a control device formed in a box shape and provided adjacent to the module battery housing portion. A housing unit, two or more module batteries housed in the module battery housing unit and housing a battery assembly of two or more single cells, and a control housed in the control device housing unit and controlling at least the module battery And a device.

When installing one package (secondary battery equipment), the procedure is as follows.
(A) Since the secondary battery unit itself functions as a secondary battery, and is also formed as a box and functions as a container, the secondary battery unit is transported to the site as it is. (B) The secondary battery unit Installation (c) Wiring work

  Assembling the base, attaching parts to secure ventilation routes such as air ducts, installing module batteries on the base, and installing a control device are no longer necessary. Can be planned.

  Further, since the individual secondary battery units themselves operate as secondary batteries, the wiring work does not require complicated wiring between module batteries, for example. A series connection of a plurality of secondary battery units and a connection between a secondary battery unit serving as a DC main circuit and a main computer (central monitoring) are sufficient. Compared with the conventional wiring work, the work can be greatly simplified and the working time can be shortened.

[2] In the first aspect of the present invention, of the module battery housing portion, an air inlet installed in a lower portion opposite to the control device housing portion, and the module battery housing portion and the control device housing portion It is preferable to have a communication port installed in the upper part of the boundary and an exhaust port installed in the upper part of the control device housing part opposite to the module battery housing part.

  The secondary battery unit formed in a box shape has a form in which the internal space is surrounded by the top plate, bottom plate, left side plate, right side plate, and back plate, etc. It can also be a cause. However, in the first aspect of the present invention, since the intake port, the communication port, and the exhaust port are installed at the positions described above, a ventilation route is formed from the lower part to the upper part along the diagonal direction of the internal space, and ventilation of the internal space is performed. Is easier to be done.

[3] In the first aspect of the present invention, the intake port is installed on the lower side and the front side of the module battery housing part, the exhaust port is the upper part of the control device housing part, and It may be installed on the back side. Thereby, the ventilation route from the lower part to the upper part of the internal space and the ventilation route in the depth direction are formed, and the internal space can be efficiently ventilated.

[4] In the first aspect of the present invention, the control device housing portion includes an exhaust device disposed to face the exhaust port, and the control device includes the exhaust device in the control device housing portion. It may be installed in the lower part. Thereby, the forced ventilation by an exhaust device can be performed along the ventilation route mentioned above.

[5] In the first aspect of the present invention, a salt damage filter may be installed in at least one of the intake port and the exhaust port. Thereby, a salt damage countermeasure can be applied to the secondary battery unit.

[6] In the first aspect of the present invention, an exhaust duct extending toward the exhaust port is provided in an upper portion of the module battery housing portion, and the opening size of the exhaust duct is reduced toward the exhaust port. You may have a some inlet. Thereby, since the opening size at the intake port of the exhaust duct can be optimized according to the distance from the exhaust port, more efficient ventilation in the secondary battery unit can be realized.

[7] In the first aspect of the present invention, a door that can be opened and closed with respect to the internal space may be provided at least on the front side of the module battery housing portion. As a result, when replacing or maintaining the module battery or the control device, the module battery or the like can be easily replaced or maintained from the front side by opening the door. This is the same even after a plurality of secondary battery units are assembled to construct one package.

[8] In this case, the module battery has a base installed on a pedestal installed in the module battery housing unit, and is installed on the base and has an opening on the upper surface, and the assembled battery is housed. And a lid that closes the opening of the box, and a positive external terminal and a negative external terminal that are provided on the front surface of the box and to which a conductive member is connected.

[9] Furthermore, at least a beam that supports the gantry may be shared with a surface that partitions the module battery housing portion. Thereby, the intensity | strength of secondary battery unit itself is securable. And since a thin metal plate etc. can be used as a beam, the weight of a secondary battery unit can be reduced.

[10] Furthermore, it is preferable that the positive electrode external terminal and the negative electrode external terminal are respectively installed on the base via an insulator.

[11] In addition, the module battery has a rectangular shape with a long side in the direction from the front to the back when viewed from the top, and the positive electrode of the assembled battery passes through the front side wall of the box. The negative electrode of the assembled battery may be connected to the negative electrode external terminal via a side wall on the back surface of the box and a relay conductor.

[12] In this case, it is preferable that the positive external terminal, the negative external terminal, and the relay conductor are respectively installed on the base via an insulator.

[13] In addition, a direction in which the conductive member connected to the positive external terminal is led out and a direction in which the conductive member connected to the negative external terminal is separated from each other may be provided. In this case, the wiring route of the wiring cable is simplified.

[14] Further, as the module battery, a module battery in which the negative external terminal is disposed on the left side with respect to the positive external terminal, and a module battery in which the negative external terminal is disposed on the right side with respect to the positive external terminal. You may have. Thereby, arrangement | positioning of a positive electrode external terminal and a negative electrode external terminal is simplified, and also a wiring form can be simplified. This is advantageous in simplifying the wiring work and shortening the work time.

[15] The positive external terminal is installed at an upper part or a lower part of the front of the box, and the negative external terminal is installed at a lower or upper part of the front of the box, The lead-out direction of the conductive member to be connected is a direction passing through the top or bottom of the negative electrode external terminal, and the lead-out direction of the conductive member connected to the negative electrode external terminal is the bottom or top of the positive electrode external terminal It may be a direction passing through.

[16] The conductive member connected to the positive external terminal is connected to the negative external terminal of one of the module batteries adjacent in the horizontal direction, and the conductive member connected to the negative external terminal is in the horizontal direction. May be connected to the positive external terminal of the other module battery adjacent to.

[17] A secondary battery facility according to the second aspect of the present invention includes one or more secondary battery units according to the first aspect of the present invention described above.

[18] In this case, at least two of the secondary battery units may each be provided with an air inlet and facing each other. Thereby, a some secondary battery unit can be installed efficiently.

[19] In the second aspect of the present invention, exhaust ducts of at least two secondary battery units may be extended and installed, and ventilation of at least two of the secondary battery units may be concentrated. As a result, the number of exhaust devices installed can be reduced, the time required for maintenance of the exhaust devices can be shortened, and it is advantageous in terms of cost. In particular, when the secondary battery units are stacked, the exhaust device can be installed only in the lower secondary battery unit, so that maintenance work of the exhaust device is facilitated.

[20] In the second aspect of the present invention, a plurality of the secondary battery units may be provided, one of the secondary battery units may function as a master, and the other secondary battery unit may function as a slave. In this case, the number of installed control devices can be reduced, the time required for maintenance of the control devices can be shortened, and the cost is advantageous. In particular, when the secondary battery units are stacked, maintenance work of the control device can be facilitated by using one of the lower secondary battery units as a master.

[21] In the second aspect of the present invention, there may be provided one gas processing device that performs gas processing by sucking air in at least one of the secondary battery units. In this case, the exhaust gas from the secondary battery unit in which a fire or the like has occurred can be exhausted through the gas processing device without being exhausted to the outside as it is.

  According to the secondary battery unit and secondary battery equipment according to the present invention, it can be operated as a secondary battery alone, or can be operated as a large secondary battery (package) by combining a plurality of units. Man-hours from requirement definition (including requirement definition) to package installation can be greatly reduced.

FIG. 1A is a perspective view showing an external appearance of a secondary battery unit according to the present embodiment, and FIG. 1B is a perspective view showing a configuration of the secondary battery unit with a door removed and partly broken. It is a longitudinal cross-sectional view which shows the structure of the module battery installed in a secondary battery unit. It is explanatory drawing which shows typically an example of the circuit of the assembled battery accommodated in the module battery, and a part of box. It is a perspective view which shows the positive electrode bus (negative electrode bus) and the positive electrode support body (negative electrode support body) installed on the base of a module battery. It is sectional drawing which shows an example of the connection form of the conductor connection part of a positive electrode bus (negative electrode bus), and the connection part of a wiring cable. It is a longitudinal cross-sectional view which shows a positive electrode bus (negative electrode bus) and a positive electrode support body (negative electrode support body). It is a top view which shows the negative electrode bus bar installed on the base of a module battery seeing from an upper surface. It is explanatory drawing which shows the wiring state (1st method) and ventilation route of the module battery in a secondary battery unit. It is explanatory drawing which shows the wiring state (2nd method) of the module battery in a secondary battery unit. It is explanatory drawing which shows the wiring state and ventilation route of the module battery in a secondary battery unit seeing from an upper surface. It is a block diagram which shows the control system of a secondary battery unit. It is a block diagram which shows an example of a density | concentration detection apparatus. It is a perspective view which shows the state which assembled the some secondary battery unit and comprised one package, and is partially broken. FIG. 14A is a perspective view showing the internal structure of the secondary battery unit with a part thereof omitted, and FIG. 14B is a perspective view showing the configuration of an internal exhaust duct installed in the secondary battery unit. FIG. 15A is a perspective view showing a partially broken example of one example in which exhaust paths of two or more secondary battery units are integrated into one, and FIG. 15B is a perspective view showing a partially broken example of another example. It is. FIG. 16A is an explanatory view showing an example in which the negative electrode bus bar is installed on the left side of the positive electrode bus, and FIG. 16B is an explanatory diagram showing an example in which the negative electrode bus bar is installed on the right side of the positive electrode bus. It is explanatory drawing which shows the wiring state of the module battery of the upper stage and lower stage in a secondary battery unit seeing from a front. 18A is an explanatory view showing the wiring state of the upper module battery in the secondary battery unit as viewed from above, and FIG. 18B is an explanatory view showing the wiring state of the lower module battery as viewed from above. It is explanatory drawing which shows the example which functioned one secondary battery unit as a master among several secondary battery units, and functioned the other secondary battery unit as a slave. It is explanatory drawing which shows the example which installed one gas processing apparatus in one package comprised with a some secondary battery unit.

  Hereinafter, an embodiment in which a secondary battery unit and secondary battery equipment according to the present invention are applied to, for example, a NaS battery will be described with reference to FIGS. 1A to 20.

  As shown in FIG. 1A, the external appearance of the secondary battery unit 10 according to the present embodiment has a rectangular parallelepiped shape having a front surface, a back surface, an upper surface, a lower surface, a left side surface, and a right side surface.

  That is, in the secondary battery unit 10, as shown in FIG. 1B, one internal space 22 is formed by the upper plate 12, the bottom plate 14, the left side plate 16, the right side plate 18 and the back plate 20. The internal space 22 is divided into two spaces 22 a and 22 b by a partition plate 24. Furthermore, as shown in FIG. 1A, the door 26 that can be opened and closed with respect to the one space 22a is attached to the front side, so that it has the appearance of a single rectangular parallelepiped as a whole. The right side plate 18 also functions as a door that can be opened and closed with respect to the other space 22b.

  Then, as shown in FIG. 1B, the secondary battery unit 10 is formed in a module battery housing portion 28 formed in a box shape that partitions one space 22a and a box shape that partitions the other space 22b. And a control device accommodating portion 30. The module battery housing portion 28 and the control device housing portion 30 are disposed adjacent to each other with the partition plate 24 interposed therebetween.

  Two or more module batteries 32 are housed in the module battery housing portion 28. That is, a plurality of support posts 34 are installed in the space 22a of the module battery housing portion 28, and for example, the gantry 36 is installed in each support post 34 at equal intervals and in parallel with each other. One module battery 32 is placed and fixed on each base 36. When a plurality of mounts 36 are installed in the vertical direction, they are installed with a certain gap between the module batteries 32 arranged in the vertical direction.

  The control device housing portion 30 houses at least a control device 38 that controls the module battery 32.

  As described above, the door 26 and the right side plate (door) 18 that can be opened and closed with respect to the spaces 22a and 22b are attached to the front sides of the module battery housing 28 and the control device housing 30, respectively. Yes. The door 26 and the right side plate 18 (door) are closed during normal use. When replacing or maintaining the module battery 32, the control device 38, etc., the door 26 and the right side plate 18 (door) are opened to easily replace the module battery 32, etc. from the front side, or perform maintenance, etc. be able to. In addition, the control device 38 and the like can be easily replaced from the right side and maintenance can be performed.

  As shown in FIG. 2, each module battery 32 accommodated in the module battery accommodating portion 28 includes a base 40 made of, for example, a steel material, a box 42 mounted and fixed on the base 40, and a box The battery pack 46 includes a plurality of unit cells 44 housed in the body 42 and a lid body 48 that closes the opening of the box body 42. The unit cell 44 has a cylindrical shape, for example, and is accommodated in the box body 42 with the axial direction directed in the vertical direction. Although not shown, silica sand is filled in the gap between the box body 42 and the collective battery 46 as digested sand so as to cope with breakage of the unit cell 44, abnormal heating, or leakage of the active material.

  The box 42 has, for example, a shape close to a rectangular parallelepiped, includes four side walls and a bottom wall, and has an upper surface opening. The box body 42 is made of a plate material made of stainless steel, for example, and is formed in a box shape having a hollow portion 50 itself. The hollow part 50 is a hermetically sealed space, and has a structure in which the hollow part 50 and the external space can communicate with each other by a vacuum valve (not shown). The hollow portion 50 is loaded with a porous vacuum heat insulating board 52 in which glass fibers are solidified into a plate shape with an adhesive, and the box 42 has a vacuum heat insulating structure.

  The lid body 48 includes a ceiling wall 54 and a flange 56 and is installed so as to close the upper surface opening of the box body 42. The lid 48 is made of a plate material made of, for example, stainless steel like the box 42. The lid body 48 is provided with a heat insulating material layer (not shown) on the inner surface side (lower surface side) for obtaining a necessary minimum heat insulating property. The hollow portion 58 of the lid 48 is stacked and filled with at least two or more removable heat insulating plates 60. That is, only the lid 48 (upper surface) has an air insulation structure, and the amount of heat released from the upper surface of the module battery 32 can be controlled. Of course, when importance is attached to the heat insulating performance in the module battery 32, the lid body 48 may adopt a vacuum heat insulating structure similarly to the box body 42.

  On the other hand, as shown in FIG. 3, the assembled battery 46 includes two or more blocks 66 connected in series from the positive electrode 62 toward the negative electrode 64. Each block 66 is configured by connecting in parallel two or more circuits (strings 68) in which two or more single cells 44 are connected in series.

  The positive electrode 62 includes a positive electrode bus 70 constituting a positive electrode external terminal. The positive electrode bus 70 is electrically connected to the positive electrode current collector 74 of the assembled battery 46 via the positive electrode pole 76. That is, the positive pole 76 is coupled to the positive current collector 74 in the housing space of the box 42, passes through the front wall 78 a of the box 42, and is coupled to the positive bus 70 outside the box 42.

  The negative electrode 64 includes a negative electrode bus bar 80 constituting a negative electrode external terminal and a negative electrode bus 84 functioning as a relay conductor. The negative electrode bus 84 is electrically connected to the negative electrode current collector 86 of the assembled battery 46 via a negative electrode pole 88. That is, the negative pole 88 is coupled to the negative current collector 86 in the housing space of the box 42, penetrates the back wall 78 b of the box 42, and is coupled to the negative bus 84 outside the box 42. The negative electrode bus 84 and the negative electrode bus bar 80 are electrically connected via the wiring cable 90. In this case, since the wiring cable 90 becomes long, it is preferable to interpose an insulator 92 such as an insulator between the wiring cable 90 and the base 40. Further, a relay bus bar may be installed between the negative electrode bus 84 and the negative electrode bus bar 80, and the negative bus 84 and the relay bus bar may be electrically connected to each other via the wiring cable 90. Good. Although the example which uses the wiring cable 90 is shown as wiring, you may use metal bus bars, for example, aluminum bus bars. In this case, unlike the wiring cable 90, it is difficult to bend, so the number of the insulators 92 can be reduced even with a long distance wiring.

  Note that the above-described positive electrode current collector 74 and negative electrode current collector 86 are made of a metal plate contributes to a decrease in the electrical resistance of the positive electrode bus 70 and the negative electrode bus 84. Further, the positive pole 76 and the negative pole 88 each having a pole shape contributes to the suppression of heat in and out via the positive pole 76 and the negative pole 88.

  Here, a state where the wiring cable 90 is connected to the positive electrode bus 70 of the module battery 32 will be described with reference to FIGS. 4 to 6.

  As shown in FIG. 4, the positive electrode bus 70 includes a conductor connecting portion 94 and a bent portion 96. The wiring cable 90 electrically connects the positive bus 70 of one adjacent module battery 32 and the negative bus bar 80 (not shown in FIG. 4) of the other module battery 32. Although not shown in FIG. 4, the wiring cable 90 electrically connects the negative electrode bus 84 and the negative electrode bus bar 80. By providing the connection cable 98 and the metal mesh wire 100 as the wiring cable 90, it is possible to follow a curved wiring path while suppressing drooping and deflection.

  A positive pole 76 is coupled to the bent portion 96 of the positive bus 70. As shown in FIG. 5, a bolt hole 102 is formed in the conductor connecting portion 94 of the positive electrode bus 70. A bolt hole 104 is also formed in the connection portion 98 of the wiring cable 90. The conductor connection portion 94 of the positive electrode bus 70 and the connection portion 98 of the wiring cable 90 are overlapped, and the bolt hole 102 formed in the conductor connection portion 94 of the positive electrode bus 70 and the bolt hole 104 formed in the connection portion 98 of the wiring cable 90. Bolt 106 is inserted into The nut 108 is screwed to the bolt 106. The conductor connection portion 94 of the positive electrode bus 70 and the connection portion 98 of the wiring cable 90 are fastened by a bolt 106 and a nut 108.

  The surface of the conductor connecting portion 94 of the positive electrode bus 70 and the surface of the connecting portion 98 of the wiring cable 90 are plated with nickel. In this case, the durability and heat resistance of the positive electrode bus 70 and the wiring cable 90 are improved as compared with the case of silver plating, but the connection resistance is increased. The problem of increased connection resistance is that the contact area between the conductor connection portion 94 of the positive electrode bus 70 and the connection portion 98 of the wiring cable 90 is increased, and the conductor connection portion 94 of the positive electrode bus 70 and the connection portion 98 of the wiring cable 90 are brought into close contact. To resolve it.

  The positive electrode bus 70 has a plate shape. The conductor connection portion 94 of the positive electrode bus 70 occupies one end of the positive electrode bus 70. The bent portion 96 of the positive electrode bus 70 occupies the other end of the positive electrode bus 70. The conductor connecting portion 94 and the bent portion 96 of the positive electrode bus 70 are arranged in parallel to the outer surface of the front wall 78a. The distance from the front wall 78 a to the conductor connection portion 94 of the positive electrode bus 70 is longer than the bolt length of the bolt 106 and longer than the distance from the front wall 78 a to the bent portion 96. Desirably, the distance from the front wall 78a to the conductor connection portion 94 of the positive electrode bus 70 is at least twice the bolt length.

  When the distance from the front wall 78a to the conductor connection portion 94 of the positive electrode bus 70 is longer than the bolt length, the bolt 106 is unlikely to contact the front wall 78a.

  When the distance from the front wall 78a to the bent portion 96 of the positive electrode bus 70 is short, the positive electrode pole 76 becomes short. As a result, the heat entering and leaving through the positive pole 76 is suppressed, and the temperature inside the box 42 can be easily adjusted.

  On the other hand, the positive electrode support 110 that supports the positive electrode bus 70 on the base 40 includes a pedestal 120, a pedestal fixing bolt 122, a lower end cap 124, an insulator 126, an upper end cap 128, L, as shown in FIGS. A bracket 130, an L-shaped bracket fixing bolt 132, and an L-shaped bracket fixing nut 134 are provided.

  The lower end 136 of the insulator 126 and the recess 138 of the lower end cap 124 are cemented. The outer surface 140 of the lower end cap 124 and the upper surface 142 of the pedestal 120 are welded.

  The pedestal 120 is fixed to the base 40 by pedestal fixing bolts 122. Bolt holes 144 are formed in the base 40. Bolt holes 146 are formed in the pedestal 120. A thread groove is cut in the inner surface of the bolt hole 144. The pedestal 120 is placed on the base 40 of the module battery 32. The pedestal fixing bolt 122 is inserted into a bolt hole 146 formed in the pedestal 120 and a bolt hole 144 formed in the base 40, and is screwed into a screw groove cut in the bolt hole 144 formed in the base 40. The The bolt hole 146 formed in the pedestal 120 is a long hole that is long in the depth direction of the pedestal 120. Thereby, the position of the base 120 can be adjusted in the depth direction.

  The upper end 148 of the insulator 126 and the recess 150 of the upper end cap 128 are cemented. The outer surface 152 of the upper end cap 128 and the outer surface 156 of the horizontal portion 154 of the L-shaped metal fitting 130 are welded.

  The vertical portion 158 of the L-shaped metal fitting 130 is fixed to the positive electrode bus 70 by the L-shaped metal fitting fixing bolt 132 and the L-shaped metal fitting fixing nut 134. A bolt hole 160 is formed in the vertical portion 158 of the L-shaped metal fitting 130. Bolt holes 162 are formed in the positive electrode bus 70. The vertical portion 158 of the L-shaped metal fitting 130 and the positive electrode bus 70 are overlapped. The L-shaped bracket fixing bolt 132 is inserted into a bolt hole 160 formed in the L-shaped bracket 130 and a bolt hole 162 formed in the positive electrode bus 70. The L-shaped bracket fixing nut 134 is screwed into the L-shaped bracket fixing bolt 132. The bolt hole 160 formed in the L-shaped metal fitting 130 is a long hole that is long in the vertical direction. Thereby, the position of the L-shaped metal fitting 130 can be adjusted in the vertical direction. Therefore, variations in the dimensions of the insulator 126 are absorbed by adjusting the positions of the pedestal 120 and the L-shaped bracket 130.

  The positive electrode bus 70 is supported by the positive electrode support 110. The pedestal 120 coupled to the base 40 and the L-shaped fitting 130 coupled to the positive electrode bus 70 are electrically insulated by the insulator 126.

  The negative electrode bus 84 and the relay support body 164 also have the same configuration as the positive electrode bus 70 and the positive electrode support body 110 described above. Therefore, in FIG.4 and FIG.6, the member regarding the negative electrode bus | bath 84 was shown in parenthesis.

  On the other hand, the negative electrode bus bar 80 and the negative electrode support 166 have substantially the same configuration as the positive electrode bus 70 described above, but as shown in FIG. 7, the shape of the conductor connecting portion 94 is L-shaped when viewed from above. Is different. That is, it has the 1st connection part 94a extended along the front wall 78a of the box 42, and the 2nd connection part 94b extended along the left side wall 78c of the box 42. A wiring cable 90 connected to the positive bus 70 (see FIG. 4) of the adjacent module battery 32 is connected to the first connecting portion 94a, and a negative bus 84 (see FIG. 4) is connected to the second connecting portion 94b. A wiring cable 90 connected to the conductor connecting portion 94 is connected.

  In this embodiment, for example, as shown in FIG. 8, the positive electrode bus 70 of one module battery 32 and the negative electrode bus bar 80 of the other module battery 32 adjacent in the lateral direction are electrically connected by a wiring cable 90. To connect to. Thereby, since the wiring direction of the wiring cable 90 connected to the external terminal of the module battery 32 becomes the arrangement direction in the horizontal direction of the module battery 32, the wiring length can be shortened between the adjacent module batteries 32. Further, the wiring cable 90 and the like can be prevented from being bent.

  Where the wiring length is long, a bus bar is installed in the middle, and an insulator 92 (see FIG. 3) such as an insulator is interposed between the wiring cable 90 and the base 40 to ensure electrical insulation. Even if the insulation coating melts, the electrical insulation is maintained, and the occurrence of a short circuit due to a multipoint ground fault can be avoided.

  Here, a method of connecting six module batteries 32 in series in the module battery housing portion 28 and connecting the module batteries 32 in series will be described with reference to FIGS. 8 and 9. 8 and 9, the six module batteries 32 are referred to as module batteries 32A to 32F.

  The first method is a method in which one module row 168 is configured by connection between the two module batteries 32 </ b> C and 32 </ b> D by the wiring cable 90 in the control device housing 30.

  Specifically, as shown in FIG. 8, the positive electrode bus 70 and the negative electrode bus bar 80 are installed at substantially the same position in the vertical direction of the box body 42.

  For the three module batteries 32 </ b> A to 32 </ b> C in the upper stage, the lead-out direction of the wiring cable 90 connected to the positive bus 70 and the lead-out direction of the wiring cable 90 connected to the negative bus bar 80 are separated from each other. .

  Specifically, the positive cable 70 of the right module battery 32 </ b> A in the upper stage and the control device 38 are connected by the wiring cable 90. The negative bus bar 80 of the right module battery 32A and the positive bus 70 of the adjacent central module battery 32B are connected by a wiring cable 90. Similarly, the negative bus bar 80 of the central module battery 32B and the positive bus 70 of the adjacent left module battery 32C are connected by a wiring cable 90. Then, the negative electrode bus bar 80 of the left module battery 32C and the positive electrode bus 70 of the lower right module battery 32D are connected by a wiring cable 90 wired over the control device housing 30.

  Similarly, the negative electrode bus bar 80 of the right module battery 32D in the lower stage and the positive electrode bus 70 of the adjacent central module battery 32E are connected by the wiring cable 90. Similarly, the negative bus bar 80 of the central module battery 32E and the positive bus 70 of the adjacent left module battery 32F are connected by the wiring cable 90. Then, the negative electrode bus bar 80 of the left module battery 32 </ b> F and the control device 38 are connected by the wiring cable 90.

  The second method is a method in which one module row 168 is configured by serial connection of the module batteries 32 in the module battery housing portion 28.

  Specifically, as shown schematically in FIG. 9, the positive electrode bus 70 is installed, for example, in the lower part of the front surface of the box body 42, and the negative electrode bus bar 80 is installed, for example, in the upper part of the front surface of the box body 42.

  And about the three module batteries 32A-32C in the upper stage, like the 1st method mentioned above, the derivation direction of the wiring cable 90 connected to the positive electrode bus 70, and the derivation of the wiring cable 90 connected to the negative electrode bus bar 80 The directions are separated from each other.

  Specifically, the positive cable 70 of the right module battery 32 </ b> A in the upper stage and the control device 38 are connected by the wiring cable 90. The negative bus bar 80 of the right module battery 32A and the positive bus 70 of the adjacent central module battery 32B are connected by a wiring cable 90. Similarly, the negative bus bar 80 of the central module battery 32B and the positive bus 70 of the adjacent left module battery 32C are connected by a wiring cable 90.

  For the three module batteries 32 </ b> D to 32 </ b> F in the lower stage, the lead-out direction of the wiring cable 90 connected to the positive bus 70 is a direction passing through the lower part of the negative bus bar 80, and the wiring cable 90 connected to the negative bus bar 80 The lead-out direction is a direction passing through the upper part of the positive electrode bus 70.

  Specifically, the negative electrode bus bar 80 and the control device 38 of the right module battery 32 </ b> D in the lower stage are connected by the wiring cable 90. The positive bus 70 of the right module battery 32D and the negative bus bar 80 of the adjacent central module battery 32E are passed through the lower part of the negative bus bar 80 of the right module battery 32D and the upper part of the positive bus 70 of the central module battery 32E. Then, the wiring cable 90 is used for connection. The positive bus 70 of the central module battery 32E and the negative bus bar 80 of the adjacent left module battery 32F pass through the lower part of the negative bus bar 80 of the central module battery 32E and the upper part of the positive bus 70 of the left module battery 32F. Then, the wiring cable 90 is used for connection. The wiring cable 90 passes through the positive bus 70 of the lower left module battery 32F and the negative bus bar 80 of the upper left module battery 32C adjacent to the upper and lower sides via the lower portion of the negative bus bar 80 of the lower left module battery 32F. Connect with.

  Which of the first method and the second method is adopted may be set in consideration of wiring work, wiring length, and the like.

  Furthermore, as shown in FIG. 8, secondary battery unit 10 according to the present embodiment has intake port 170, communication port 172, and exhaust port 174. The air inlet 170 is installed in the lower part of the module battery housing 28 opposite to the control device housing 30. The communication port 172 is installed at the upper part of the boundary (partition plate 24) between the module battery housing part 28 and the control device housing part 30. The exhaust port 174 is installed in the upper part of the control device housing 30 opposite to the module battery housing 28. Further, an exhaust device 176 is installed in the control device housing 30 so as to face the exhaust port 174. The control device 38 is installed below the exhaust device 176 in the control device housing 30. In the example of FIG. 8, an example is shown in which the module battery housing portion 28 is positioned on the left side and the control device housing portion 30 is positioned on the right side.

  As shown in FIGS. 1A and 1B, the secondary battery unit 10 has an internal space 22 surrounded by a door 26, an upper plate 12, a bottom plate 14, a left side plate 16, a right side plate 18 and a back plate 20. For this reason, heat is likely to be trapped in the internal space 22, which may cause malfunction. Therefore, as shown in FIG. 8, the intake port 170, the communication port 172, and the exhaust port 174 are installed at the above-described positions, and the exhaust device 176 is driven to ventilate from the lower part of the left side plate 16 to the upper side of the right side plate 18. A route is formed, making forced ventilation easier.

  In particular, in the present embodiment, as shown in FIG. 10, when viewed from the top, each module battery 32 has a rectangular shape with a long side extending from the front to the back. In addition, a wiring cable 90 is wired from the back side of each module battery 32 to the negative bus bar 80 on the front side via the negative bus 84. Therefore, it is preferable to secure a route in the depth direction in addition to the route from the lower part to the upper part of the internal space 22 as the ventilation route. As a result, the internal space 22 can be ventilated, and the positive bus 70, the negative bus 84, the negative bus bar 80, and the wiring cable 90 can be efficiently air-cooled.

  Therefore, in the present embodiment, as shown in FIG. 10, the intake port 170 is installed on the lower side and on the front side of the module battery housing unit 28, and the exhaust port 174 is installed on the upper side of the control device housing unit 30. And it is installed in the back side. Thereby, a ventilation route from the lower part to the upper part of the internal space 22 and a ventilation route in the depth direction are formed. As a result, the internal space 22 can be efficiently ventilated, and the positive electrode bus 70, the negative electrode bus 84, the negative electrode bus bar 80, and the wiring cable 90 can be efficiently air-cooled. In particular, in the present embodiment, since a gap is provided between the module batteries 32 arranged vertically, a ventilation route is formed also between the module batteries 32 arranged vertically, and forced ventilation can be efficiently performed. .

  As illustrated in FIG. 11, the control device 38 includes a detection unit 178 and a control unit 180.

  The detection unit 178 detects the concentration of the active material contained in the gas exhausted through the ventilation route. The gas to be detected may be a gas in the module battery housing part 28 or a gas forcedly exhausted by the exhaust device 176.

  As the concentration detection device for detecting the concentration of the active material contained in the gas forcedly exhausted from the exhaust device 176, the concentration detection device 182 shown in FIG. 12 can be preferably used. That is, the gas in the module battery housing portion 28 is guided to the exhaust device 176 side by the exhaust device 176 through the communication port 172 (see FIG. 8), and further, the gas from the secondary battery unit 10 through the exhaust port 174. Is forced to exhaust. Therefore, when a part of the gas from the module battery housing portion 28 is drawn into another path, for example, the gas sensor side, it is difficult to draw the gas even if a vacuum pump is used.

  Therefore, the concentration detection device 182 draws gas using two conduits with different positions of one opening (exhaust side opening). Specifically, the concentration detection device 182 includes a first conduit 184, a second conduit 186, a chamber 188, and a gas sensor 190. The first conduit 184 extends, for example, in a straight line, and one opening 184a faces upward. The second conduit 186 is bent and deformed in the middle, and one opening 186 a has an L shape facing the exhaust device 176. In the chamber 188, the other openings 184b and 186b of the first conduit 184 and the second conduit 186 are inserted. In the gas sensor 190, a sensing unit 190 a is installed in the chamber 188. In the present embodiment, gas is drawn by the concentration detector 182.

  One opening 184a of the first conduit 184 and one opening 186a of the second conduit 186 have different opening directions, and a pressure difference is generated between the one opening 184a and 186b. A gas flow is generated between the other opening 184 b of the first conduit 184 and the other opening 186 b of the second conduit 186. That is, a part of the gas from the module battery housing part 28 is drawn into the chamber 188. The gas sensor 190 detects the concentration of the active material contained in the gas drawn into the chamber 188.

  FIG. 12 shows that a gas flow is generated in the chamber 188 from the other opening 186 b of the second conduit 186 toward the other opening 184 b of the first conduit 184. Of course, a gas flow may occur from the other opening 184 b of the first conduit 184 toward the other opening 186 b of the second conduit 186. In the above example, the first conduit 184 has a linear shape and the second conduit 186 has a shape bent in the middle. Of course, as long as the pressure applied to the one opening 184a of the first conduit 184 and the pressure applied to the one opening 186a of the second conduit 186 are different, any shape may be used, and the position of each of the openings 184a and 186a may be determined. You may change arbitrarily.

  As shown in FIG. 11, the control unit 180 controls each module battery 32 based on the set charge / discharge sequence. Further, the control unit 180 controls the exhaust device 176.

  During the discharge period of each module battery 32 during normal operation, the amount of heat generated by each module battery 32 is small, so the control unit 180 limits the exhaust flow rate by reducing the rotational speed of the fan of the exhaust device 176. Control. On the other hand, during the charging period of each module battery 32, the amount of heat generated by each module battery 32 becomes large. Therefore, the control unit 180 increases the rotational speed of the fan of the exhaust device 176 to increase the exhaust flow rate. I do. The above-described control in the discharge period and the charge period may be performed in conjunction with information from the temperature sensor 192 attached to each module battery 32 or a charge / discharge sequence.

  In addition, when the concentration of the active material detected by the detection unit 178 is equal to or higher than a specified value, the control unit 180 reports the occurrence of a gas concentration abnormality. For example, the identification number of the secondary battery unit 10 and an identification code indicating an abnormal gas concentration are stored in a transmission file, and the transmission file is transmitted to a monitoring center or the like to report an abnormal gas concentration. In this case, it may be transmitted via a public communication network such as the Internet or a mobile phone network. In addition to the monitoring center, reporting may be made to local users, local managers, and the like. In addition to the notification by data communication, the initial action for the abnormal gas concentration can be accelerated by making a notification by telephone.

  Furthermore, a salt damage countermeasure can be taken against the secondary battery unit 10 by additionally installing a salt damage filter or the like in at least one of the intake port 170 and the exhaust port 174.

  Next, an example in which one package 200 is configured by combining a plurality of secondary battery units 10 will be described with reference to FIG.

  For example, when eight secondary battery units 10 are juxtaposed to form one package 200, the first set 202A and the second set 202B are arranged side by side. The first set 202A is configured by stacking two secondary battery units 10 in which the module battery housing portion 28 is located on the left side when viewed from the front and the control device housing portion 30 is located on the right side. The second set 202B is configured by stacking two secondary battery units 10 in which the module battery housing part 28 is located on the right side as viewed from the front and the control device housing part 30 is located on the left side.

  Further, a third set 202C in which two secondary battery units 10 in which the module battery housing portion 28 is located on the left side and the control device housing portion 30 is located on the right side when viewed from the front is connected to the rear surface of the second set 202B. Place on the side. At this time, the secondary battery units 10 of the second group 202B and the secondary battery units 10 of the third group 202C are arranged to face each other.

  Similarly, a fourth set 202D in which two secondary battery units 10 in which the module battery housing portion 28 is located on the right side and the control device housing portion 30 is located on the left side as viewed from the front is stacked in the first set 202A. Place on the back side. At this time, the rear surfaces of the secondary battery units 10 of the first set 202A and the secondary battery units 10 of the fourth set 202D are arranged to face each other.

  Also in this case, the secondary battery unit 10 of the third set 202C and the secondary battery unit 10 of the fourth set 202D are installed so that the surfaces provided with the air inlets 170 are opposed to each other.

  Thereby, since the exhaust port 174 in the secondary battery unit 10 of each group goes to the outside of the package 200, the forced ventilation in each secondary battery unit 10 can be performed efficiently.

  If, for example, the secondary battery unit 10 of the second set 202B is located on the right side when facing the front, the secondary battery of the first set 202A is located close to the front of the exhaust port 174. Since the unit 10 is located, exhaust is not sufficient, and forced ventilation may not be performed efficiently.

  The above example is merely an example, and various arrangement examples can be considered. However, it is preferable that the two secondary battery units 10 arranged in the lateral direction face each other on the surface provided with the air inlet 170 for the reasons described above.

Thus, in the present embodiment, when one package 200 is installed, the procedure is as follows.
(A) Since the secondary battery unit 10 itself functions as a secondary battery and is also formed as a box and functions as a container, the secondary battery unit 10 is transported to the site as it is. (B) Secondary battery Installation of unit 10 (c) Wiring work

  The conventional assembly of the mount 36, installation work of parts for securing a ventilation route by an air duct, installation of the module battery 32 to the mount 36, and installation of the control device 38, which were necessary in the past, are not required. Thus, the number of man-hours can be greatly reduced.

  Further, since the individual secondary battery unit 10 itself operates as a secondary battery, the wiring work does not require complicated wiring between the module batteries 32, for example. A series connection of a plurality of secondary battery units 10 and a connection between the secondary battery unit 10 serving as a DC main circuit and the main computer (central monitoring) are sufficient, and the work is greatly simplified compared to conventional wiring work. And shortening the working time.

  Next, various modifications of the secondary battery unit 10 and the secondary battery equipment (package 200) according to the present embodiment will be described with reference to FIGS.

(First modification)
For example, as shown in FIG. 14A (perspective view), an internal exhaust duct 210 extending toward the exhaust port 174 may be provided in the upper part of the module battery housing 28. In this case, by installing the internal exhaust duct 210 in the upper part in the module battery housing part 28, it is possible to selectively inhale the air in the upper heat reservoir in the module battery housing part 28. In FIG. 14A, the module battery 32, the control device 38, the exhaust device 176, etc. are omitted.

  Further, as shown in FIG. 14B, the internal exhaust duct 210 has a plurality of intake ports 212 whose opening sizes become smaller as they approach the exhaust port 211. Specifically, for example, a case is assumed where the inside of the module battery housing portion 28 is divided into three areas (first area Z1 to third area Z3) according to the installation position of the module battery 32. The opening size of the intake port 212a corresponding to the first area Z1 farthest from the exhaust port 211 is the largest, and the opening size of the intake port 212c corresponding to the third area Z3 closest to the exhaust port 211 is the smallest. The opening size of the air inlet 212b corresponding to the second area Z2 sandwiched between the first area Z1 and the third area Z3 is an intermediate level. Thereby, since the opening size of the intake port 212 can be optimized according to the distance from the exhaust port 211, it is possible to intake air uniformly from each of the areas Z1 to Z3, and a more efficient secondary battery unit. Ventilation within 10 can be realized.

  Furthermore, the cross section of the internal exhaust duct 210 increases as the internal exhaust duct 210 approaches the exhaust port 211. That is, the cross-sectional area A in the conduit 214 in the internal exhaust duct 210 has the smallest cross-sectional area Aa corresponding to the first area Z1, the largest cross-sectional area Ac corresponding to the third area Z3, and corresponds to the second area Z2. The cross-sectional area Ab is the intermediate level. Thereby, the flow velocity in the internal exhaust duct 210 can be made constant, and the air flow does not stagnate in the internal exhaust duct 210.

(Second modification)
The exhaust paths of two or more secondary battery units 10 may be integrated into one. For example, as shown in FIG. 15A, when assuming that two secondary battery units 10 are stacked, when the internal exhaust duct 210 is not used, the exhaust device 176 is disposed outside the secondary battery unit 10 located at the lower stage. The external exhaust duct 216 is installed from the exhaust ports 174 of the upper and lower secondary battery units 10 toward the exhaust device 176. Then, the air from the upper and lower secondary battery units 10 is exhausted to the outside through the exhaust port 218 of the external exhaust duct 216.

  Further, as shown in FIG. 15B, even in the case of the secondary battery unit 10 in which the internal exhaust duct 210 is installed, the exhaust device 176 is installed outside the secondary battery unit 10 located in the lower stage. Then, each internal exhaust duct 210 may be extended to the exhaust port 174, and the air in each secondary battery unit 10 may be exhausted through the external exhaust duct 216.

  By adopting these configurations, the number of exhaust devices 176 can be reduced, the time required for maintenance of the exhaust devices 176 can be shortened, and the cost can be improved. In particular, when the secondary battery units 10 are stacked, since the exhaust device 176 is installed only in the lower secondary battery unit 10, maintenance work of the exhaust device 176 is facilitated.

(Third Modification)
As shown in FIG. 14A, at least the beam 220 that supports the column 34 and the gantry 36 may be shared with a surface that divides the module battery housing portion 28. For example, the lower beam 220b is embedded in, for example, the bottom plate 14 among the ceiling portion (upper plate 12) and the floor portion (bottom plate 14) that divide the module battery housing portion 28. The upper beam 220a is installed in contact with the ceiling surface of the upper plate 12 (indicated by a two-dot chain line). Thereby, the intensity | strength of secondary battery unit 10 itself is securable. Moreover, since a thin metal plate or the like can be used as the lower beam 220b or the upper beam 220a, the weight of the secondary battery unit 10 can be reduced.

(Fourth modification)
As shown in FIGS. 16A and 16B, the positive electrode bus 70 is installed at the center position with respect to the front wall 78a of the box body 42, and the negative electrode bus 84 is installed at the center position with respect to the rear wall 78b of the box body 42. To do. And according to the module battery 32, the installation position of the negative electrode bus bar 80 is installed at the left position with respect to the front wall 78a of the box body 42 (or the positive electrode bus 70 at the center) (see FIG. 16A). 42 on the right side of the front wall 78a (or the positive electrode bus 70 at the center) (see FIG. 16B).

  Specifically, as shown in FIGS. 17 and 18A, for the three module batteries 32A, 32B, and 32C in the upper stage, the negative electrode bus bar 80 is installed on the right side with respect to the front wall 78a. As shown in FIGS. 17 and 18B, for the three module batteries 32D, 32E, and 32F in the lower stage, the negative electrode bus bar 80 is installed on the left side with respect to the front wall 78a.

  Then, the negative bus bar 80 of the right module battery 32 </ b> A in the upper stage and the control device 38 are connected by the wiring cable 90. The positive bus of the right module battery 32 </ b> A and the negative bus bar 80 of the adjacent central module battery 32 </ b> B are connected by a wiring cable 90. The positive bus 70 of the central module battery 32B and the negative bus bar 80 of the adjacent left module battery 32C are connected by a wiring cable 90.

  Similarly, between the positive electrode bus 70 of the right module battery 32 </ b> D and the control device 38 in the lower stage is connected by the wiring cable 90. The negative electrode bus bar 80 of the right module battery 32D and the positive electrode bus 70 of the adjacent central module battery 32E are connected by a wiring cable 90. The negative bus bar 80 of the central module battery 32E and the positive bus 70 of the adjacent left module battery 32F are connected by a wiring cable 90.

  Then, the negative bus bar 80 of the lower left module battery 32F and the positive bus 70 of the upper left module battery 32C adjacent in the vertical direction are connected by a wiring cable 90.

  As described above, the arrangement of the positive bus 70 and the negative bus bar 80 is simplified, and the wiring of the wiring cable 90 can be simplified as compared with the examples of FIGS. 8 and 9. This is advantageous in simplifying the wiring work and shortening the work time. The wiring cable 90 may be a bus bar or a flexible conductor.

(5th modification)
As illustrated in FIG. 19, for example, assuming that one package 200 is configured by combining four secondary battery units 10 </ b> A to 10 </ b> D, the control device 38 is installed only in one secondary battery unit 10 </ b> A. Then, the wiring cables 90 from the four secondary battery units 10A to 10D are aggregated in the control device 38 so that the secondary battery unit 10A functions as a master and the other three secondary battery units 10B to 10D serve as slaves. May function. In this case, the number of installed control devices 38 can be reduced, the time required for maintenance of the control device 38 can be shortened, and the cost is also advantageous. In particular, when the secondary battery units 10 are stacked, the maintenance work of the control device is facilitated by using one of the lower secondary battery units as a master.

  Of course, although not shown, the exhaust device 176 installed in each of the secondary battery units 10A to 10D is driven and stopped through the control device 38, or from the detection unit 178 installed in each of the secondary battery units 10A to 10D. The detection information may be intensively monitored by the control device 38.

(Sixth Modification)
As shown in FIG. 20, for example, one gas processing device 222 may be installed in one package 200 constituted by four secondary battery units 10A to 10D. Each of the secondary battery units 10 </ b> A to 10 </ b> D is provided with a gate 224, and the exhaust path 226 from each gate 224 is collected in the gas processing device 222. When a fire occurs in any one or more secondary battery units (for example, the secondary battery unit 10B), the air inlet 170 and the air outlet 174 of the secondary battery unit 10B in which the fire has occurred are closed and exhausted. The device 176 is stopped and the gate 224 is opened instead. As a result, only the air (exhaust gas) from the secondary battery unit 10B where the fire has occurred is sucked by the gas processing device 222 through the exhaust path 226, is exhausted after being gas-treated.

  In this case, the exhaust gas from the secondary battery unit 10B in which a fire has occurred can be exhausted through the gas processing device 222 without exhausting it to the outside as it is.

  Of course, the secondary battery unit and the secondary battery equipment according to the present invention are not limited to the above-described embodiments, and various configurations can be adopted without departing from the gist of the present invention.

Claims (21)

A module battery housing (28) formed in a box shape;
A control device accommodating portion (30) formed in a box shape and provided adjacent to the module battery accommodating portion (28);
Two or more module batteries (32) housed in the module battery housing part (28) and housing a battery assembly (46) of two or more unit cells (44);
A secondary battery unit comprising: a control device (38) housed in the control device housing portion (30) and controlling at least the module battery (32). The secondary battery unit according to claim 1,
An inlet (170) installed in a lower part of the module battery housing part (28) opposite to the control device housing part (30);
A communication port (172) installed at an upper portion of a boundary (24) between the module battery housing part (28) and the control device housing part (30);
A secondary battery unit having an exhaust port (174) installed in an upper part of the control device housing part (30) opposite to the module battery housing part (28). The secondary battery unit according to claim 2,
The inlet (170) is installed at the lower part of the module battery housing (28) and on the front side,
The secondary battery unit, wherein the exhaust port (174) is installed on the back side of the upper part of the control device housing part (30). The secondary battery unit according to claim 2 or 3,
An exhaust device (176) installed facing the exhaust port (174) in the control device housing (30);
The said control apparatus (38) is installed in the lower part rather than the said exhaust apparatus (176) in the said control apparatus accommodating part (30), The secondary battery unit characterized by the above-mentioned. In the secondary battery unit according to any one of claims 2 to 4,
A secondary battery unit, wherein a salt damage filter is installed in at least one of the intake port (170) and the exhaust port (174). The secondary battery unit according to any one of claims 2 to 5,
An exhaust duct (210) extending toward the exhaust port (174) is provided at an upper portion in the module battery housing (28),
The secondary battery unit, wherein the exhaust duct (210) has a plurality of air inlets (212) whose opening sizes are reduced toward the air outlet (211). The secondary battery unit according to any one of claims 1 to 6,
A secondary battery unit comprising a door (26) that is openable and closable with respect to the internal space (22) at least on the front side of the module battery housing (28). The secondary battery unit according to claim 7,
The module battery (32)
A base (40) installed on a pedestal (36) installed in the module battery housing (28);
A box (42) which is installed on the base (40) and has an opening on the upper surface and which accommodates the assembled battery (46);
A lid (48) for closing the opening of the box (42);
A secondary battery unit comprising a positive external terminal (70) and a negative external terminal (80), which are provided in front of the box (42) and to which a conductive member (90) is connected. The secondary battery unit according to claim 8,
The secondary battery unit, wherein at least a beam (220) supporting the gantry (36) is shared with a surface defining the module battery housing part (28). The secondary battery unit according to claim 8 or 9,
The secondary battery unit, wherein the positive external terminal (70) and the negative external terminal (80) are respectively installed on the base (40) via an insulator (92). The secondary battery unit according to any one of claims 8 to 10,
The module battery (32) has a rectangular shape with a long side in the direction from the front to the back when viewed from above.
The positive electrode (62) of the battery assembly (46) is connected to the positive external terminal (70) via the front side wall (78a) of the box (42),
The negative electrode (64) of the battery assembly (46) is connected to the negative electrode external terminal (80) through a side wall (78b) on the back surface of the box (42) and a relay conductor (84). Secondary battery unit. The secondary battery unit according to claim 11,
The positive external terminal (70), the negative external terminal (80), and the relay conductor (84) are respectively installed on the base (40) via an insulator (92). Secondary battery unit. The secondary battery unit according to any one of claims 8 to 12,
The lead-out direction of the conductive member (90) connected to the positive external terminal (70) and the lead-out direction of the conductive member (90) connected to the negative external terminal (80) are directions away from each other. A secondary battery unit characterized by that. The secondary battery unit according to claim 13,
The module battery (32) includes a module battery (32) in which the negative external terminal (80) is installed on the left side of the positive external terminal (70), and the negative external terminal (80) is the positive external terminal. A secondary battery unit comprising a module battery (32) installed on the right side of (70). The secondary battery unit according to any one of claims 8 to 12,
The positive external terminal (70) is installed on the upper or lower part of the front surface of the box (42),
The negative external terminal (80) is installed on the lower or upper part of the front surface of the box (42),
The lead-out direction of the conductive member (90) connected to the positive electrode external terminal (70) is a direction passing through the upper part or the lower part of the negative electrode external terminal (80),
The secondary battery unit, wherein a lead-out direction of the conductive member (90) connected to the negative external terminal (80) is a direction passing through a lower part or an upper part of the positive external terminal (70). The secondary battery unit according to any one of claims 13 to 15,
The conductive member (90) connected to the positive external terminal (70) is connected to the negative external terminal (80) of one module battery (32) adjacent in the lateral direction,
The secondary battery is characterized in that the conductive member (90) connected to the negative external terminal (80) is connected to the positive external terminal (70) of the other module battery (32) adjacent in the lateral direction. unit.   A secondary battery facility comprising one or more secondary battery units (10) according to any one of claims 1 to 16. The secondary battery equipment according to claim 17,
At least two secondary battery units (10) are each provided with an air inlet (170) and are installed with their surfaces facing each other. The secondary battery equipment according to claim 17 or 18,
Exhaust ducts of at least two secondary battery units (10) are extended and installed,
A secondary battery installation, wherein ventilation of at least two secondary battery units (10) is concentrated. The secondary battery equipment according to any one of claims 17 to 19,
A plurality of the secondary battery units (10),
One of the secondary battery units (10) functions as a master, and the other secondary battery unit (10) functions as a slave. The secondary battery equipment according to any one of claims 17 to 20,
A secondary battery facility comprising one gas processing device (222) for performing gas processing by sucking air in at least one of the secondary battery units (10).

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