WO2015029865A1

WO2015029865A1 - Secondary battery unit and secondary battery equipment

Info

Publication number: WO2015029865A1
Application number: PCT/JP2014/071858
Authority: WO
Inventors: 玉越富夫; 武山幹根; 福原基広
Original assignee: 日本碍子株式会社
Priority date: 2013-08-26
Filing date: 2014-08-21
Publication date: 2015-03-05
Also published as: JPWO2015029865A1; JP6388866B2

Abstract

The present invention relates to a secondary battery unit and secondary battery equipment. This secondary battery unit (10) comprises: a modular battery housing unit (28) formed in a box shape; a control device housing unit (30) formed in a box shape and provided adjacent to the modular battery housing unit (28); two or more modular batteries (32) housed in the modular battery housing unit (28), with each housing an aggregate battery comprising two or more unit batteries; and a control device (38) housed in the control device housing unit (30) and controlling at least the modular batteries (32).

Description

Secondary battery unit and secondary battery facility

The present invention relates to a secondary battery unit and a secondary battery facility which can operate as a secondary battery with only one unit, and can operate as a large secondary battery by combining a plurality of units.

In general, frequency adjustment of the power system, and adjustment of demand power and supply power of the power system are performed by a plurality of generators and storage batteries in the system. In addition, adjustment of the difference between the generated power from the natural energy power generation device and the planned output power, and the fluctuation mitigation of the generated power from the natural energy power generation device are also often carried out by a plurality of generators, storage batteries and the like. The storage battery can change the output power at high speed compared to 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, of the power system It is effective for the adjustment of demand power and supply power.

And, as a high temperature operation type storage battery connected to the electric power system, for example, a sodium-sulfur battery (hereinafter referred to as a NaS battery) can be mentioned. 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, and when heated to a temperature of about 300 ° C. The chemical reaction generates predetermined energy. And, usually, NaS batteries are used in the form of module batteries in which a plurality of single batteries are erected and connected together. A module battery has a structure in which a circuit (string) in which a plurality of unit 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 accommodated in a heat insulation container. .

When using a NaS battery, a plurality of heat insulation containers are vertically stacked (stacked) to form one module row, and a plurality of module rows are juxtaposed to form one package, and further, a package A controller for controlling each module battery is installed (see, for example, Japanese Patent Application Laid-Open No. 2008-226488).

However, in the case of installing the package, the following procedure is required, and there is a problem that the number of steps is increased.
(A) Transport the module battery, stand, control device, etc. individually to the site (b) Assemble the stand (c) Install parts for securing the ventilation route such as air duct (d) Install the module battery on the stand ( e) Installation of control unit (f) Wiring work

The wiring work includes wiring for forming each module row, wiring between the module row and the control device, etc., and as the number of module batteries increases, the time for wiring work will increase.

The present invention has been made in consideration of such problems, and can be operated as a secondary battery by itself or can be operated as a large secondary battery (package) by combining a plurality of units. It is an object of the present invention to provide a secondary battery unit and a secondary battery facility capable of significantly reducing the number of steps from the requirement definition (including the requirement definition) to the installation of the package.

[1] A secondary battery unit according to the first aspect of the present invention includes a module battery storage portion formed in a box shape, and a control device formed in a box shape and provided adjacent to the module battery storage portion A storage unit, two or more module batteries accommodated in the module battery accommodation unit and including an assembled battery of two or more single cells, and a control for accommodating at least the module battery accommodated in the control device accommodation unit And a device.

When installing one package (secondary battery installation), the procedure is as follows.
(A) The secondary battery unit itself functions as a secondary battery, and moreover, it is formed in a box shape and also functions as a container, so the secondary battery unit is transported to the site as it is (b) Installation (c) Wiring work

There is no need to assemble the frame, install parts for securing ventilation routes such as air ducts, install the module battery on the frame, and install the control device. Can be

In addition, in the wiring work, since each secondary battery unit itself operates as a secondary battery, complicated wiring between module batteries, for example, is unnecessary. It is sufficient to connect a plurality of secondary battery units in series and a connection between the secondary battery unit serving as a DC main circuit and the main computer (central monitoring). As 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 storage unit, an intake port installed at a lower side opposite to the control device storage unit, an intake port of the module battery storage unit, and the control device storage unit It is preferable to have the communication port installed in the upper part of the boundary, and the exhaust port installed in the upper part on the opposite side to the said module battery accommodating part among the said control apparatus accommodating parts.

Since the box-shaped secondary battery unit has a form in which the internal space is surrounded by the upper plate, the bottom plate, the left side plate, the right side plate, the back plate and the like, heat easily builds up in the internal space, causing a malfunction. It is also a cause. However, in the first aspect of the present invention, since the intake port, the communication port and the exhaust port are disposed at the above-mentioned positions, a ventilation route is formed from the lower portion to the upper portion along the diagonal direction of the inner space Becomes easier to do.

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

[4] In the first aspect of the present invention, the control device storage unit includes an exhaust device installed facing the exhaust port, and the control device includes the exhaust device in the control device storage unit. It may be installed in the lower part than it. Thus, forced ventilation can be performed by the exhaust device along the above-described ventilation route.

[5] In the first aspect of the present invention, a salt damage filter may be provided in at least one of the intake port and the exhaust port. Thereby, measures against salt damage can be taken on the secondary battery unit.

[6] In the first aspect of the present invention, an exhaust duct extending toward the exhaust port is provided at an upper portion in the module battery housing, and the exhaust duct has a smaller opening size as it approaches the exhaust port. It may have a plurality of air inlets. Thus, the opening size of the air intake port of the exhaust duct can be optimized according to the distance from the exhaust port, so that more efficient ventilation inside the secondary battery unit can be realized.

[7] In the first aspect of the present invention, at least a front side of the module battery storage portion may have a door which can be opened and closed with respect to the internal space. Thus, at the time of replacement or maintenance of the module battery, the control device or the like, by opening the door, the module battery can be easily replaced from the front side, or maintenance can be performed. This is the same even after assembling a plurality of secondary battery units to construct one package.

[8] In this case, the module battery is mounted on a pedestal installed in the module battery storage unit, and the module battery is installed on the base and has an opening on the upper surface, and the assembled battery is accommodated. And a lid for closing the opening of the box, and a positive electrode external terminal and a negative electrode external terminal which are provided on the front of the box and to which conductive members are respectively connected.

[9] Furthermore, at least a beam supporting the gantry may be shared with the surface partitioning the module battery storage unit. Thereby, the strength of the secondary battery unit itself can be secured. 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 be respectively installed on the base via an insulator.

[11] Further, the module battery has a rectangular shape in which the direction from the front to the back is a long side when viewed from the top, and the positive electrode of the assembled battery is through the side wall of the front of the box. It is connected to the said positive electrode external terminal, and the negative electrode of the said assembled battery may be connected to the said negative electrode external terminal via the side wall and relay conductor of the back surface of the said box.

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

[13] The direction in which the conductive member connected to the positive electrode external terminal is derived may be separated from the direction in which the conductive member connected to the negative electrode external terminal is separated. 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 electrode external terminal is disposed on the left side with respect to the positive electrode external terminal, and a module battery in which the negative electrode external terminal is disposed on the right side with respect to the positive electrode external terminal And may be included. Thereby, the arrangement of the positive electrode external terminal and the negative electrode external terminal can be simplified, and moreover, the wiring configuration can also be simplified. This is advantageous in simplifying the wiring operation and shortening the operation time.

[15] The positive electrode external terminal is disposed at the upper or lower portion of the front of the box, and the negative electrode external terminal is disposed at the lower or upper portion of the front of the box, and the positive electrode external terminal The lead-out direction of the conductive member to be connected is the direction passing through the upper or lower part of the negative electrode external terminal, and the lead-out direction of the conductive member connected to the negative electrode external terminal is the lower portion or upper part of the positive electrode external terminal The direction may be via.

[16] Further, the conductive member connected to the positive electrode external terminal is connected to the negative electrode external terminal of one module battery adjacent in the lateral direction, and the conductive member connected to the negative electrode external terminal is in the lateral direction It may be connected to the positive electrode external terminal of the other module battery adjacent to.

[17] A secondary battery installation according to a 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 be provided with an inlet port and face each other. Thereby, a plurality of secondary battery units can be efficiently installed.

[19] In the second invention, the exhaust ducts of at least two of the secondary battery units may be extended, and ventilation of the at least two of the secondary battery units may be performed in a concentrated manner. 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 the cost also becomes advantageous. In particular, when the secondary battery units are stacked, the exhaust device can be installed only in the lower secondary battery unit, which facilitates maintenance work of the exhaust device.

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

[21] In the second aspect of the present invention, the gas treatment apparatus may have one gas treatment device that sucks air in at least one of the secondary battery units to perform gas treatment. 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 the secondary battery facility according to the present invention, not only it can operate as a single battery, but also it can operate as a large secondary battery (package) by combining a plurality of units, Man-hours from the requirement definition (including the requirement definition) to the installation of the package can be significantly reduced.

FIG. 1A is a perspective view showing the appearance of a secondary battery unit according to the present embodiment, and FIG. 1B is a perspective view showing the configuration of the secondary battery unit with the door removed and a part broken away. 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 positive electrode support (negative electrode support) which are 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 (negative electrode support). 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) of a module battery in a secondary battery unit, and a ventilation route. 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 showing a control system of a rechargeable battery unit. It is a block diagram which shows an example of a density | concentration detection apparatus. It is a perspective view which partially breaks and shows the state which assembled the several secondary battery unit and comprised one package. FIG. 14A is a see-through perspective view partially showing the structure in the secondary battery unit, and FIG. 14B is a perspective view showing a configuration of an internal exhaust duct installed in the secondary battery unit. FIG. 15A is a partially broken perspective view showing an example in which the exhaust paths of two or more secondary battery units are integrated into one, and FIG. 15B is a partially broken perspective view showing another example. It is. FIG. 16A is an explanatory view showing an example in which the negative electrode bus bar is disposed on the left side of the positive electrode bus as viewed from above, and FIG. 16B is an explanatory view showing the example in which the negative electrode bus bar is disposed on the right side of the positive electrode bus. FIG. 6 is an explanatory view showing a wiring state of upper and lower module batteries in the secondary battery unit as viewed from the front. FIG. 18A is an explanatory view showing the wiring state of the upper module battery in the secondary battery unit from above, and FIG. 18B is an explanatory drawing showing the wiring state of the lower module battery from above. It is explanatory drawing which shows the example which made one secondary battery unit function as a master among several secondary battery units, and let another secondary battery unit function as a slave. It is explanatory drawing which shows the example which installed one gas processing apparatus in one package comprised with several secondary battery units.

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

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

That is, in the secondary battery unit 10, as shown in FIG. 1B, one internal space 22 is formed by the top plate 12, the bottom plate 14, the left side plate 16, the right side plate 18 and the back plate 20. The inner space 22 is divided by a partition plate 24 into two

spaces

22a and 22b. Furthermore, as shown in FIG. 1A, a door 26 that is openable and closable with respect to one space 22a is attached to the front side, so that it has an appearance as one rectangular solid 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 box shape that divides the space 22b into a module battery storage portion 28 formed in a box shape that divides one space 22a. And the control device accommodation unit 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, in the space 22 a of the module battery housing portion 28, a plurality of columns 34 are installed, and on each column 34, for example, mounts 36 are installed at equal intervals in parallel with each other. One module battery 32 is mounted and fixed on each of the mounts 36 one by one. When a plurality of mounts 36 are installed in the vertical direction, the module batteries 32 arranged in the vertical direction are installed with a certain amount of clearance.

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

As described above, the door 26 and the right side plate (door) 18 which can be opened and closed with respect to the

respective spaces

22a and 22b are attached to the front sides of the module battery storage unit 28 and the control device storage unit 30, respectively. There is. The door 26 and the right side plate 18 (door) are in a closed state during normal use. At the time of replacement or maintenance of the module battery 32, the control device 38, etc., the module battery 32 etc. can be easily replaced from the front side or maintenance etc. by opening the door 26 and the right side plate 18 (door). 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 housed in the module battery housing portion 28 is, for example, a base 40 made of steel, a box 42 mounted and fixed on the base 40, and a box It has the assembled battery 46 which consists of many single cells 44 accommodated in the body 42, and the cover body 48 which obstruct | occludes the opening of the box 42. As shown in FIG. The unit cell 44 has, for example, a cylindrical shape, and is accommodated in the box 42 with the axial direction directed vertically. Further, although not shown, silica sand is filled in the gap between the box 42 and the battery assembly 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 is an upper opening. The box 42 is made of, for example, a plate material made of stainless steel, and is itself formed in a box shape having the hollow portion 50. The hollow portion 50 is a hermetically sealed space, and has a structure in which the hollow portion 50 and the external space can communicate with each other by a vacuum valve (not shown). In the hollow portion 50, a porous vacuum heat insulation board 52 in which glass fibers are solidified in a plate shape with an adhesive is loaded, and the box body 42 has a vacuum heat insulation structure.

The lid 48 includes a top wall 54 and a weir 56, and is installed to close the top opening of the box 42. The lid 48 is made of, for example, a plate made of stainless steel, as the box 42. On the inner surface side (lower surface side) of the lid 48, a heat insulating material layer (not shown) for obtaining the minimum necessary heat insulation is disposed. The hollow portion 58 of the lid 48 is stacked and filled with at least two 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 placed on the heat insulation performance in the module battery 32, the lid 48 may adopt a vacuum heat insulation structure as well as the box 42.

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

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

The negative electrode 64 includes a negative electrode bus bar 80 which constitutes a negative electrode external terminal, and a negative electrode bus 84 which functions as a relay conductor. The negative electrode bus 84 is electrically connected to the negative electrode current collector portion 86 of the battery pack 46 via the negative electrode pole 88. That is, the negative electrode pole 88 is coupled to the negative electrode 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 electrode 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 is long, it is preferable to interpose an insulator 92 such as a ladder between the wiring cable 90 and the base 40. Even if a relay bus bar is installed between the negative electrode bus 84 and the negative electrode bus bar 80, the negative electrode bus 84 and the relay bus bar, and the relay bus bar and the negative bus bar 80 are electrically connected via the wiring cable 90, respectively. Good. Although an example in which the wiring cable 90 is used as the wiring is shown, a metal bus bar, such as an aluminum bus bar, may be used. In this case, unlike the wiring cable 90, since it is difficult to bend, the number of insulators 92 installed can be reduced even with a long distance wiring.

In addition, that the positive electrode current collection part 74 mentioned above and the negative electrode current collection part 86 being comprised by a metal plate contributes to the fall of the electrical resistance of the positive electrode bus 70 and the negative electrode bus 84. FIG. In addition, the positive electrode pole 76 and the negative electrode pole 88 having a pole shape, respectively, contribute to the suppression of heat entering and exiting through the positive electrode pole 76 and the negative electrode pole 88.

Here, a state in which 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 connection portion 94 and a bent portion 96. Wiring cable 90 electrically connects positive electrode bus 70 of one adjacent module battery 32 and negative electrode bus bar 80 (not shown in FIG. 4) of the other module battery 32. Although not illustrated 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 portion 98 made of a metal plate and the mesh wire 100 made of a metal plate as the wiring cable 90, it becomes possible to follow a curved wiring path while sagging and bending are suppressed.

The positive electrode pole 76 is coupled to the bent portion 96 of the positive electrode bus 70. As shown in FIG. 5, bolt holes 102 are formed in the conductor connection portion 94 of the positive electrode bus 70. The bolt holes 104 are 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. The bolt 106 is inserted into the The nut 108 is screwed into 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 the bolt 106 and the nut 108.

The surface of the conductor connection portion 94 of the positive electrode bus 70 and the surface of the connection 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 that the connection resistance increases is that the contact area of 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 adhered. Eliminate it by

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 connection portion 94 and the bending portion 96 of the positive electrode bus 70 are disposed 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 bending 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 does not easily 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 is short. As a result, heat inflow and outflow through the positive electrode pole 76 is suppressed, and adjustment of the temperature in the box 42 becomes easy.

On the other hand, as shown in FIGS. 4 and 6, the positive electrode support 110 for supporting the positive electrode bus 70 on the base 40 is the pedestal 120, the pedestal fixing bolt 122, the lower end cap 124, the insulator 126, the upper end cap 128, L The bracket 130, the L-shaped bracket fixing bolt 132, and the L-shaped bracket fixing nut 134 are provided.

The lower end 136 of the forceps 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 a pedestal fixing bolt 122. Bolt holes 144 are formed in the base 40. Bolt holes 146 are formed in the base 120. A screw groove is cut on the inner surface of the bolt hole 144. The pedestal 120 is mounted 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 screwed into a screw groove cut in the bolt hole 144 formed in the base 40 Ru. The bolt holes 146 formed in the pedestal 120 are long holes that are long in the depth direction of the pedestal 120. Thereby, the position of the pedestal 120 can be adjusted in the depth direction.

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

The vertical portion 158 of the L-shaped fitting 130 is fixed to the positive electrode bus 70 by the L-shaped fitting fixing bolt 132 and the L-shaped fitting fixing nut 134. A bolt hole 160 is formed in the vertical portion 158 of the L-shaped 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 the bolt hole 160 formed in the L-shaped bracket 130 and the bolt hole 162 formed in the positive electrode bus 70. The L-shaped fitting fixing nut 134 is screwed into the L-shaped fitting fixing bolt 132. The bolt holes 160 formed in the L-shaped fitting 130 are long holes that are long in the vertical direction. Thereby, the position of the L-shaped fitting 130 can be adjusted in the vertical direction. Therefore, the variation in the size of the insulator 126 is absorbed by the positional adjustment 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 isolated by the insulator 126.

The negative electrode bus 84 and the relay support 164 also have the same configuration as that of the positive electrode bus 70 and the positive electrode support 110 described above. Therefore, in FIGS. 4 and 6, the members relating to the negative electrode bus 84 are shown in parentheses.

On the other hand, although the negative electrode bus bar 80 and the negative electrode support 166 have substantially the same configuration as the above-described positive electrode bus 70, as shown in FIG. 7, the shape of the conductor connection portion 94 is L-shaped as viewed from the top. It differs in That is, it has a first connection portion 94 a extending along the front wall 78 a of the box 42 and a second connection portion 94 b extending along the left side wall 78 c of the box 42. The wiring cable 90 connected to the positive electrode bus 70 (see FIG. 4) of the adjacent module battery 32 is connected to the first connection portion 94a, and the second connection portion 94b is connected to the negative electrode bus 84 (see FIG. 4). The wiring cable 90 connected to the conductor connection portion 94 is connected.

In the present 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 To connect to. As a result, the wiring direction of the wiring cable 90 connected to the external terminal of the module battery 32 is the arrangement direction in the lateral direction of the module battery 32. Therefore, the wiring length can be shortened between the adjacent module batteries 32. The bending of the wiring cable 90 or the like can be suppressed.

Where the wiring length is long, a bus bar may be installed midway, or an insulator 92 (see FIG. 3) such as a ladder may be 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, six module batteries 32 are accommodated in the module battery accommodation unit 28, and a method of connecting the module batteries 32 in series will be described with reference to FIGS. 8 and 9. In FIGS. 8 and 9, the six module batteries 32 are referred to as module batteries 32A to 32F.

The first method is a method of constructing one module row 168 by connection between the two

module batteries

32C and 32D by the distribution 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 42.

Then, for the three module batteries 32A to 32C in the upper row, the lead-out direction of the wiring cable 90 connected to the positive electrode bus 70 and the lead-out direction of the wiring cable 90 connected to the negative electrode busbar 80 are mutually separated. .

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

Similarly, the negative electrode bus bar 80 of the right side 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 electrode bus bar 80 of the central module battery 32E and the positive electrode 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 32F and the control device 38 are connected by the wiring cable 90.

The second method is a method of configuring one module row 168 by series connection of the module batteries 32 in the module battery housing 28.

Specifically, as schematically shown in FIG. 9, the positive electrode bus 70 is disposed, for example, at the lower portion of the front of the box 42, and the negative electrode bus bar 80 is disposed, for example, at the upper portion of the front of the box 42.

Then, for the three module batteries 32A to 32C in the upper row, the lead-out direction of the wiring cable 90 connected to the positive electrode bus 70 and the lead-out of the wiring cable 90 connected to the negative electrode busbar 80 as in the first method described above The directions are separated from each other.

Specifically, the positive electrode bus 70 of the right side module battery 32A in the upper stage and the control device 38 are connected by the wiring cable 90. A wiring cable 90 connects the negative electrode bus bar 80 of the right module battery 32A and the positive electrode bus 70 of the adjacent central module battery 32B. Similarly, the negative electrode bus bar 80 of the central module battery 32B and the positive electrode bus 70 of the adjacent left module battery 32C are connected by the wiring cable 90.

In the lower three module batteries 32D to 32F, the lead-out direction of the wiring cable 90 connected to the positive electrode bus 70 is the direction passing through the lower part of the negative electrode busbar 80, and the wiring cable 90 connected to the negative electrode busbar 80. The lead-out direction is a direction passing through the upper portion of the positive electrode bus 70.

Specifically, the negative electrode bus bar 80 of the lower right module battery 32D and the control device 38 are connected by the wiring cable 90. The positive electrode bus 70 of the right module battery 32D and the negative electrode busbar 80 of the adjacent central module battery 32E are via the lower part of the negative electrode busbar 80 of the right module battery 32D and the upper part of the positive electrode bus 70 of the central module battery 32E And connect with the wiring cable 90. The positive electrode bus 70 of the central module battery 32E and the negative electrode busbar 80 of the adjacent left module battery 32F are connected via the lower part of the negative electrode busbar 80 of the central module battery 32E and the upper part of the positive electrode bus 70 of the left module battery 32F And connect with the wiring cable 90. Then, the positive electrode bus 70 of the lower left module battery 32F and the negative electrode bus bar 80 of the upper upper left module battery 32C vertically adjacent to each other pass through the lower part of the negative electrode bus bar 80 of the lower left module battery 32F. Connect with

Whether to adopt the first method or the second method may be set in consideration of the wiring operation, the wiring length and the like.

Furthermore, as shown in FIG. 8, secondary battery unit 10 according to the present embodiment has an inlet 170, a communication port 172, and an exhaust port 174. The intake port 170 is installed in the lower part of the module battery storage unit 28 opposite to the control device storage unit 30. The communication port 172 is installed at an upper portion of the boundary (partition plate 24) between the module battery housing portion 28 and the control device housing portion 30. The exhaust port 174 is disposed at an upper portion 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, the module battery storage unit 28 is positioned on the left side facing the control unit storage unit 30 on the right side, but of course, the opposite may be applied.

As shown in FIGS. 1A and 1B, the secondary battery unit 10 has a form in which the internal space 22 is surrounded by the door 26, the upper plate 12, the bottom plate 14, the left side plate 16, the right side plate 18 and the back plate 20. As a result, heat is easily accumulated in the internal space 22, which may cause a malfunction or the like. Therefore, as shown in FIG. 8, the intake port 170, the communication port 172 and the exhaust port 174 are installed at the above-mentioned positions, and the exhaust device 176 is driven to ventilate from the lower portion of the left side plate 16 to the upper portion of the right side plate 18. Routes are formed and forced ventilation is facilitated.

In particular, in the present embodiment, as shown in FIG. 10, each module battery 32 has a rectangular shape in which the direction from the front to the back is a long side when viewed from the top. In addition, the wiring cable 90 is wired from the rear side of each module battery 32 to the negative electrode bus bar 80 on the front side via the negative electrode bus 84. From this, in addition to the route from the lower portion to the upper portion of the internal space 22, it is preferable to secure a route in the depth direction as a ventilation route. As a result, ventilation of the internal space 22 becomes possible, and air cooling of the positive electrode bus 70, the negative electrode bus 84, the negative electrode bus bar 80, and the wiring cable 90 can be efficiently performed.

Therefore, in the present embodiment, as also shown in FIG. 10, the intake port 170 is installed at the lower side of the module battery storage unit 28 and on the front side, and the exhaust port 174 is the upper portion of the control device storage unit 30. And on the back side. Thus, 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, ventilation of the internal space 22 can be performed efficiently, and air cooling of the positive electrode bus 70, the negative electrode bus 84, the negative electrode bus bar 80, and the wiring cable 90 can be performed efficiently. In particular, in the present embodiment, a gap is provided between the module batteries 32 lined up and down, so that a ventilation route is also formed between the module batteries 32 lined up and down, and forced ventilation can be performed efficiently. .

The control device 38 has a detection unit 178 and a control unit 180, as shown in FIG.

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 storage unit 28 or a gas forcibly exhausted by the exhaust device 176.

As a concentration detection device for detecting the concentration of the active material contained in the gas forcibly exhausted from the exhaust device 176, a concentration detection device 182 shown in FIG. 12 can be preferably used. That is, the gas in the module battery housing portion 28 is led to the exhaust device 176 side through the communication port 172 (see FIG. 8) by the exhaust device 176, and further, outside the secondary battery unit 10 through the exhaust port 174. Forced exhaustion. From this, when drawing in a part of the gas from the module battery storage unit 28 to another path, for example, the gas sensor side, it is difficult to draw the gas even when using a vacuum pump, for example.

Therefore, the concentration detection device 182 draws in gas using two conduits in which the positions of one opening (opening on the exhaust side) are different. 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, linearly, and one opening 184 a faces upward. The second conduit 186 is bent and deformed halfway, and one opening 186 a has an L shape facing the exhaust device 176. The chamber 188 is inserted with the

other opening

184 b and 186 b sides of the first conduit 184 and the second conduit 186. The gas sensor 190 has a sensing unit 190 a installed in the chamber 188. In the present embodiment, gas is drawn in by the concentration detector 182.

Since one opening 184 a of the first conduit 184 and one opening 186 a of the second conduit 186 have different opening orientations and a pressure difference occurs between the one

openings

184 a and 186 b, the first A gas flow occurs between the other opening 184 b of the first conduit 184 and the other opening 186 b of the second conduit 186. That is, part of the gas from the module battery housing portion 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.

Note that FIG. 12 shows that a flow of gas is generated in the chamber 188 from the other opening 186 b of the second conduit 186 to the other opening 184 b of the first conduit 184. Of course, 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. Further, in the above-described example, the first conduit 184 is straight, and the second conduit 186 is bent in the middle. Of course, as long as the pressure applied to one opening 184a of the first conduit 184 and the pressure applied to one opening 186a of the second conduit 186 are different, any shape may be used, and the position of each one

opening

184a and 186a It may be changed arbitrarily.

As shown in FIG. 11, the control unit 180 controls each of the module batteries 32 based on the set charge and discharge sequence. The control unit 180 also controls the exhaust device 176.

Since the calorific value of each module battery 32 is small during the discharge period of each module battery 32 during the normal operation, the control unit 180 reduces the number of rotations of the fan of the exhaust device 176 to limit the exhaust flow rate. Control to On the contrary, since the calorific value of each module battery 32 is large during the charging period of each module battery 32, the control unit 180 controls the increase of the exhaust flow rate by increasing the rotational speed of the fan of the exhaust device 176. I do. The control described above in the discharge period and the charge period may be performed in conjunction with the information from the temperature sensor 192 attached to each module battery 32 or the charge and 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 the gas concentration abnormality. For example, the identification number of the secondary battery unit 10 and the identification code indicating the gas concentration abnormality are stored in the transmission file, and the transmission file is transmitted to the monitoring center or the like to report the gas concentration abnormality. In this case, transmission may be performed via a public communication network such as the Internet or a mobile telephone network. In addition to the monitoring center, the notification may be sent to local users, local administrators, etc. In addition to reporting by data communication, reporting by telephone can accelerate the initial action for gas concentration abnormalities.

Furthermore, by additionally installing a salt damage filter or the like in at least one of the intake port 170 and the exhaust port 174, it is possible to take measures against salt damage to the secondary battery unit 10.

Next, one example in the case where a plurality of secondary battery units 10 are combined to constitute one package 200 will be described with reference to FIG.

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

Furthermore, when viewed from the front, the module battery housing 28 is located on the left side, and the control battery housing 30 is located on the right side. Place on the side. At this time, the back surfaces of the secondary battery unit 10 of the second set 202B and the secondary battery unit 10 of the third set 202C are disposed to face each other.

Similarly, when viewed from the front, the module battery housing 28 is located on the right side, and the control battery housing 30 is located on the left side. Arrange on the back side. At this time, the back surfaces of the secondary battery unit 10 of the first set 202A and the secondary battery unit 10 of the fourth set 202D are disposed 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 with the surfaces provided with the intake ports 170 facing each other.

Thereby, since the exhaust port 174 in each set of secondary battery units 10 is directed outward of the package 200, forced ventilation in each secondary battery unit 10 can be efficiently performed.

If, for example, the secondary battery unit 10 of the second set 202B is located on the right side toward the front, the control device housing 30 is located in front of the exhaust port 174 and the secondary battery of the first set 202A is close. Since the unit 10 is positioned, exhaust may not be sufficient, and forced ventilation may not be performed efficiently.

The above example is just an example, and various arrangements can be considered. However, it is preferable that the two secondary battery units 10 aligned in the lateral direction have the surfaces provided with the intake ports 170 opposite to each other, for the reason described above.

Thus, in the present embodiment, when one package 200 is installed, the following procedure is performed.
(A) The secondary battery unit 10 itself functions as a secondary battery, and moreover, is formed in a box shape and also functions as a container, so the secondary battery unit 10 is transported to the site as it is (b) secondary battery Installation of unit 10 (c) Wiring work

It is not necessary to assemble the stand 36 in the field, install parts for securing ventilation route by air duct etc., install the module battery 32 to the stand 36 and install the control unit 38, which is conventionally required. Thus, the number of man-hours can be greatly reduced.

Further, in the wiring work, since each secondary battery unit 10 itself operates as a secondary battery, for example, complicated wiring between the module batteries 32 is not necessary. The series connection of a plurality of secondary battery units 10 and the connection between the secondary battery unit 10 serving as a DC main circuit and the main computer (central monitoring) simplifies the work significantly compared to the conventional wiring work. And work time can be shortened.

Next, various modifications of the secondary battery unit 10 and the secondary battery facility (package 200) according to the present embodiment will be described with reference to FIGS. 14A to 20.

(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 at the upper portion in the module battery housing portion 28. In this case, by installing the internal exhaust duct 210 in the upper part in the module battery storage 28, the air in the heat accumulation in the upper part in the module battery storage 28 can be selectively sucked. In FIG. 14A, the module battery 32, the control device 38, the exhaust device 176 and the like are omitted.

Further, as shown in FIG. 14B, the inner exhaust duct 210 has a plurality of intake ports 212 whose opening size is reduced as approaching the exhaust port 211. Specifically, it is assumed that, for example, the inside of the module battery storage unit 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 set to the middle level. As a result, the opening size of the intake port 212 can be optimized according to the distance from the exhaust port 211. Therefore, the secondary battery unit can be equally inhaled from each of the areas Z1 to Z3. Ventilation within 10 can be realized.

Furthermore, as the inner exhaust duct 210 approaches the exhaust port 211, the cross-sectional area in the inner exhaust duct 210 increases. 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 at an intermediate level. As a result, the flow velocity in the internal exhaust duct 210 can be made constant, and the flow of air in the internal exhaust duct 210 will not be stagnant.

(2nd modification)
The exhaust paths of two or more secondary battery units 10 may be integrated into one. For example, as shown in FIG. 15A, assuming that two secondary battery units 10 are stacked, if the internal exhaust duct 210 is not used, an exhaust device 176 is provided outside the secondary battery unit 10 located in 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.

Moreover, as shown to FIG. 15B, also in the case of the secondary battery unit 10 in which the internal exhaust duct 210 was installed, the exhaust apparatus 176 is installed in the exterior of the secondary battery unit 10 located in a 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, and the time required for maintenance of the exhaust devices 176 can be shortened, which is also advantageous in cost. In particular, when stacking the secondary battery units 10, the exhaust device 176 is installed only in the lower secondary battery unit 10, so the maintenance work of the exhaust device 176 is facilitated.

(Third modification)
As shown in FIG. 14A, at least a beam 220 supporting the columns 34 and the frame 36 may be shared with the surface that divides the module battery housing 28. For example, the lower beam 220b is embedded in, for example, the bottom plate 14 of the ceiling portion (the upper plate 12) and the floor portion (the bottom plate 14) which define the module battery storage portion 28, for example. The upper beam 220a is installed in contact with the ceiling surface of the upper plate 12 (shown by a two-dot chain line). Thereby, the strength of the secondary battery unit 10 itself can be secured. In addition, since a thin metal plate or the like can be used as the lower beam 220b and the upper beam 220a, the weight of the secondary battery unit 10 can be reduced.

(4th modification)
As shown in FIGS. 16A and 16B, the positive electrode bus 70 is disposed at a central position relative to the front wall 78a of the box 42, and the negative electrode bus 84 is disposed at a central position relative to the rear wall 78b of the box 42. Do. Then, depending on the module battery 32, the installation position of the negative electrode bus bar 80 may be installed on the left side of the front wall 78a of the box 42 (or the positive electrode bus 70 in the center) (see FIG. 16A), or It is installed at a position on the right side with respect to the front wall 78a of 42 (or the positive electrode bus 70 in 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. Further, 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 disposed on the left side with respect to the front wall 78a.

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

Similarly, the positive electrode bus 70 of the right side module battery 32D in the lower stage and the control device 38 are connected by the wiring cable 90. A wiring cable 90 connects 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. Wiring cable 90 connects the negative electrode bus bar 80 of the central module battery 32E and the positive electrode bus 70 of the adjacent left module battery 32F.

Then, the negative electrode bus bar 80 of the lower left module battery 32F and the positive electrode bus 70 of the upper upper left module battery 32C vertically adjacent to each other are connected by the wiring cable 90.

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

(5th modification)
As shown in FIG. 19, when it is assumed that, for example, four secondary battery units 10A to 10D are combined to constitute one package 200, the control device 38 is installed only on one secondary battery unit 10A. The wiring cables 90 from the four secondary battery units 10A to 10D are integrated into the control device 38, and the secondary battery unit 10A functions as a master, and the other three secondary battery units 10B to 10D as slaves. It may be made to function. In this case, the number of installed control devices 38 can be reduced, and the time required for maintenance of the control devices 38 can be shortened, which is also advantageous in cost. In particular, when stacking the secondary battery units 10, by using one of the lower secondary battery units as a master, the maintenance operation of the control device can be facilitated.

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 centrally 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 configured of four secondary battery units 10A to 10D. A gate 224 is provided for each of the secondary battery units 10A to 10D, and the exhaust path 226 from each gate 224 is integrated into the gas processing device 222. Then, when a fire occurs in any one or more of the secondary battery units (for example, the secondary battery unit 10B), the intake port 170 and the exhaust port 174 of the secondary battery unit 10B where the fire has occurred are closed and the exhaust is performed. Stop the device 176 and open the gate 224 instead. As a result, only the air (exhaust gas) from the secondary battery unit 10B in which the fire has occurred is sucked by the gas processing device 222 through the exhaust path 226, gas-treated, and exhausted.

In this case, the exhaust gas from the secondary battery unit 10B where the fire has occurred can be exhausted through the gas processing device 222 without being exhausted as it is.

The secondary battery unit and the secondary battery facility according to the present invention are not limited to the above embodiment, and it goes without saying that various configurations can be adopted without departing from the scope of the present invention.

Claims

A module battery housing (28) formed in a box shape;
A control device housing (30) formed in a box shape and provided adjacent to the module battery housing (28);
Two or more module batteries (32) which are accommodated in the module battery accommodation unit (28) and in which an assembled battery (46) of two or more single batteries (44) is accommodated;
And a control device (38) housed in the control device housing (30) for controlling at least the module battery (32).
In the secondary battery unit according to claim 1,
An intake port (170) installed at a lower portion of the module battery housing (28) opposite to the control device housing (30);
A communication port (172) installed at an upper portion of a boundary (24) between the module battery housing (28) and the control device housing (30);
A secondary battery unit characterized by having an exhaust port (174) installed at an upper portion of the control device housing (30) opposite to the module battery housing (28).
In the secondary battery unit according to claim 2,
The air intake port (170) is installed on the front side of the lower portion of the module battery housing (28).
A secondary battery unit characterized in that the exhaust port (174) is installed on the upper side and the back side of the control device housing (30).
In the secondary battery unit according to claim 2 or 3,
In the control device housing (30), an exhaust device (176) installed opposite to the exhaust port (174),
A secondary battery unit characterized in that the control device (38) is disposed below the exhaust device (176) in the control device housing (30).
In the secondary battery unit according to any one of claims 2 to 4,
A salt damage filter is installed in at least one of the air inlet (170) and the air outlet (174).
In 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),
A secondary battery unit characterized in that the exhaust duct (210) has a plurality of air inlets (212) whose opening size is reduced as approaching the air outlet (211).
In the secondary battery unit according to any one of claims 1 to 6,
A secondary battery unit characterized by having a door (26) openable and closable with respect to the internal space (22) at least on the front side of the module battery storage (28).
In the secondary battery unit according to claim 7,
The module battery (32) is
A base (40) installed on a rack (36) installed in the module battery storage (28);
A box (42) installed on the base (40) and having an opening on the upper surface, in which the battery pack (46) is housed;
A lid (48) closing the opening of the box (42);
A secondary battery unit comprising a positive electrode external terminal (70) and a negative electrode external terminal (80) which are provided on the front of the box (42) and to which the conductive members (90) are respectively connected.
In the secondary battery unit according to claim 8,
A secondary battery unit characterized in that at least a beam (220) for supporting the rack (36) is shared with a surface for partitioning the module battery storage (28).
In the secondary battery unit according to claim 8 or 9,
A secondary battery unit characterized in that the positive electrode external terminal (70) and the negative electrode 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 in which the direction from the front to the back is a long side when viewed from the top,
The positive electrode (62) of the battery assembly (46) is connected to the positive electrode external terminal (70) through 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 the side wall (78b) on the rear surface of the box (42) and the relay conductor (84). Secondary battery unit.
In the secondary battery unit according to claim 11,
The positive electrode external terminal (70), the negative electrode external terminal (80), and the relay conductor (84) are each disposed 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 electrode external terminal (70) and the lead-out direction of the conductive member (90) connected to the negative electrode external terminal (80) are mutually separated. A secondary battery unit characterized by
In the secondary battery unit according to claim 13,
As the module battery (32), a module battery (32) in which the negative electrode external terminal (80) is disposed on the left side with respect to the positive electrode external terminal (70), and the negative electrode external terminal (80) is the positive electrode external terminal A secondary battery unit comprising: a module battery (32) installed on the right side with respect to (70).
The secondary battery unit according to any one of claims 8 to 12,
The positive electrode external terminal (70) is installed at an upper portion or a lower portion of a front surface of the box (42),
The negative electrode external terminal (80) is disposed at a lower portion or an upper portion of a 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 or lower part of the negative electrode external terminal (80),
A secondary battery unit characterized in that the lead-out direction of the conductive member (90) connected to the negative electrode external terminal (80) is a direction passing through a lower portion or an upper portion of the positive electrode external terminal (70).
In the secondary battery unit according to any one of claims 13 to 15,
The conductive member (90) connected to the positive electrode external terminal (70) is connected to the negative electrode external terminal (80) of one module battery (32) adjacent in the lateral direction,
The conductive member (90) connected to the negative electrode external terminal (80) is connected to the positive electrode 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.
In the secondary battery facility according to claim 17,
A secondary battery installation characterized in that at least two of the secondary battery units (10) are provided with an inlet (170) and face each other.
The secondary battery facility according to claim 17 or 18,
Exhaust ducts of at least two of the secondary battery units (10) are extended and installed,
A secondary battery facility characterized in that ventilation of at least two of the secondary battery units (10) is performed in a concentrated manner.
The secondary battery facility according to any one of claims 17 to 19,
Having a plurality of the secondary battery units (10);
A secondary battery facility characterized in that 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 facility according to any one of claims 17 to 20,
A secondary battery facility characterized by comprising one gas processing device (222) for suctioning air in at least one of the secondary battery units (10) to perform gas processing.