JP6514961B2 - Power supply - Google Patents

Description

  The present invention relates to a power supply device including a power storage device.

  Conventionally, a battery stack provided with a plurality of single cells is known (see Patent Document 1). The battery stack includes a plurality of cells arranged side by side in a predetermined direction, a plurality of partition plates disposed between the cells, a pair of end plates disposed on both sides of the plurality of cells, And a connecting band extending in a direction and connecting the pair of end plates. The end plate and the connection band are joined by mechanical clinch to form a holding member, and the holding member integrally holds the plurality of batteries and the plurality of partition plates.

  In the battery stack, since the end plate and the connection band are joined by mechanical clinching, weight reduction can be achieved compared to a battery stack in which the end plate and the connection band are joined by a binding member such as a bolt. ing.

  When such a plurality of battery stacks are mounted on a vehicle as a power supply, for example, the plurality of battery stacks are accommodated in a power supply case to form a power supply pack, for convenience of handling, installation, etc. May be mounted on cars etc.

  In the power supply pack, a large number of battery cells are arranged in the power supply case. Therefore, in order to prevent the battery cells from being overheated by heat generated in the battery cells during charge and discharge, for example, between the battery cells The cooling air is allowed to pass through (see Patent Document 2).

  Specifically, the battery pack includes a battery module having a plurality of battery cells, an intake chamber capable of supplying the cooling air to the battery module, an exhaust chamber capable of exhausting the cooling air from the battery module, and A seal member disposed between the battery module and each chamber, and a power supply case in which the battery module, the intake chamber, and the exhaust chamber are disposed.

  The battery module has a plurality of resin frames forming a cooling medium passage through which a cooling air can pass between the plurality of battery cells arranged in a predetermined direction and the adjacent battery cells disposed between the battery cells. And the body.

  The intake chamber is connected to one end opening of the cooling medium passage, and the exhaust chamber is connected to the other end opening of the cooling medium passage. At this time, the intake chamber is pressed against the battery module so as to sandwich the seal member disposed so as to surround the one end opening with the battery module, and the exhaust chamber is the other The seal member disposed so as to surround the end opening of the battery pack is pressed against the battery module so as to be sandwiched between the battery module and the seal member. Thus, the sealing member is sandwiched between the battery module and each chamber so as to surround the one end opening or the other end opening, whereby the space between the battery module and each chamber It is possible to prevent the cooling air from leaking from the battery and effectively cool the battery cells.

  In the manufacturing process of the battery pack, for example, the seal member is manually moved to a predetermined position of the battery module by using a double-sided tape or the like (specifically, a position surrounding the one end opening and the other end) Paste at the position surrounding the opening). At this time, when the seal member is deviated from the predetermined position, the seal member protrudes into the passage through which the cooling air passes to obstruct the passage of the cooling air, or the battery module and the intake chamber or the exhaust Since the cooling air leaks from between the chamber and the cooling efficiency of the battery cell is reduced, the seal member must be carefully attached to the battery module while checking the position by visual inspection. Was bad.

  In addition, in the manufacturing process of the battery pack, in addition to the seal member, for example, a spacing member such as a buffer member or a spacer disposed between the battery modules or between the battery module and other members, covers a bus bar Also in the work of precisely attaching the members to be fixed to the frame such as the insulating member, the intake chamber and the exhaust chamber to the frame, the working efficiency is poor as in the case of the attachment of the seal member.

JP, 2013-69657, A JP 2007-35444 A

  Therefore, an object of the present invention is to provide a power supply device that facilitates the positioning of other members with respect to the frame when the other members are attached to the frame.

The power supply device according to the present invention is
A storage device having at least one storage element, a pair of end members sandwiching the storage element in a first direction, and a frame extending in the first direction along the storage element and connecting the end members to each other;
And a mounting member mounted at a predetermined position with respect to the frame,
The frame has at least one recess or protrusion formed on the surface of the frame by being clinched to the end member,
The frame attachment member has a fitting portion fitted to the concave portion or the convex portion at a contact portion with the frame.

  As described above, by attaching the attachment member to the frame using the concave or convex portion formed by the clinch joint, positioning of the attachment member (other member) relative to the frame is facilitated. That is, according to the above configuration, the mounting member is positioned relative to the frame by fitting the fitting portion of the mounting member to the concave or convex portion formed on the surface of the frame by clinch bonding, whereby the mounting member is It is accurately (precisely) mounted at the proper position (predetermined placement position) of the frame.

In the power supply unit,
The frame has a plurality of the concave portions or the convex portions,
At least one recess or protrusion of the plurality of recesses or protrusions has a shape different from the shape of the remaining recesses or protrusions,
The seal member may have a plurality of fitting portions whose number and shape correspond to the plurality of concave portions or convex portions.

  According to this configuration, the concave portion or the convex portion (the concave portion other than the remaining concave portion among the plurality of concave portions, or the convex portion other than the remaining convex portion of the plurality of convex portions) By fitting the fitting portion having a shape corresponding to the convex portion, each of the plurality of fitting portions can be respectively fitted to the corresponding concave portion or convex portion, whereby the posture of the mounting member with respect to the frame is It is possible to prevent attachment of the mounting member to the frame in an incorrect state (in which the fitting portion is fitted in a recess or protrusion different from the intended recess or protrusion).

In the power supply unit,
The frame has a plurality of the concave portions or the convex portions,
The number of the concave portions or the convex portions at the joining portion between one end member of the pair of end members and the frame, and the joining portion between the other end member of the pair of end members and the frame Different from the number of recesses or protrusions,
The attachment member may have a plurality of the fitting portions in the number and arrangement according to the plurality of concave portions or convex portions.

  According to this configuration, the number of the recess or the projection on the one side of the joining portion in the first direction is different from the number of the recess or the projection on the other side of the joining portion. It is possible to reliably prevent reverse mounting in the first direction.

In the power supply unit,
Each of the pair of end members extends from the end portion of the end member body extending in a direction orthogonal to the first direction, and the peripheral portion of the end member body, and the storage element is overlapped with the end member body in the first direction. And a first joining piece folded back to the opposite side,
The frame extends along the storage element in a first direction and surrounds the end opening, and the end member body extends from each of both ends of the frame body to overlap the first joint piece. And extending a second joint piece,
The first joint piece and the second joint piece are clinched together,
Each of the joining pieces at both end positions of the frame main body is the recess or the projection formed by clinch joining with the first joining piece, and the recess or recess which is recessed toward the end member main body It has the said convex part which protrudes toward the said termination member main body on the surface,
The mounting member is continuous along the surface of the frame from the second joint piece extending from one end of the frame main body to the second joint piece extending from the other end of the frame main body,
Each of the plurality of fitting portions may be fitted to the concave portion or the convex portion by extending in a direction toward the end member main body from a position facing the joining portion at both end positions of the frame main body.

  According to this configuration, the second joint pieces extend along the end member body from both ends of the frame body (that is, because the second joint pieces at the both ends are opposed to each other in the first direction), Recesses or protrusions formed on the surfaces of the second joining pieces at the both ends are respectively recessed or protruded in directions approaching each other in the first direction. Therefore, even if a force is applied to the mounting member in the direction orthogonal to or substantially orthogonal to the first direction between both ends of the frame main body, the fitting direction opposite to the fitting direction with respect to the fitting portion fitted to the recess or the protrusion is Since a force in a direction (a direction away from the end member main body in the first direction) is not applied, a force in a direction crossing the reverse direction is applied, so that the fitting portion is difficult to be removed from the recess or the protrusion. That is, even if a force is applied to the mounting member in a direction (a direction away from the frame, etc.) with respect to the mounting member between both ends of the frame main body, the mounting member does not easily come off the frame.

In this case, the power supply device
The mounting member is elastically deformable,
In the mounting member in a state of being removed from the frame, the fitting portion fitted to the concave portion or the convex portion formed in the second joint piece extending from the one end, and extending from the other end The distance along the attachment member between the recess formed in the second joint piece or the fitting portion fitted to the convex portion is formed in the second joint piece extending from the one end It is preferable that the distance along the frame between the recess or the protrusion and the recess or the protrusion formed in the second bonding piece extending from the other end be smaller than the distance along the frame.

  According to this configuration, the distance from the frame along the frame between the recess or protrusion formed in the second joint piece on one side and the recess or protrusion formed in the second joint piece on the other side A fitting portion to be fitted to the concave portion or the convex portion of the second joint piece on the one side of the mounting member in a removed state, and a fitting portion to be fitted to the concave portion or the convex portion of the second joint piece on the other side Because the distance along the attachment member between them is smaller, the attachment member is attached to the frame in the stretched state, thereby being pressed against the frame and in intimate contact with the frame. Moreover, by attaching the mounting member to the frame in a stretched state, a force in a direction intersecting the first direction is continuously applied to the fitting portions at both end positions of the frame main body by the elastic return force of the mounting member. The fitting portion is less likely to come off the recess or the protrusion.

In the power supply unit,
The power storage device has at least one spacer which is aligned with the power storage element in the first direction and forms a flow path through which fluid can flow between the power storage element and the power storage element.
The attachment member is a seal member attached to the frame so as to surround the end opening, and when the supply device or duct for supplying or evacuating the fluid is connected to the flow path, the frame and the attachment member It is preferable that it is a sealing member clamped between a supply apparatus or the said duct.

  When displaced from the arrangement position, the seal member protrudes into the flow path through which the fluid passes to obstruct the passage of the fluid, or the fluid leaks from between the storage device and the duct to cool the storage element 1. In order to reduce the efficiency (or heating), the seal member must be accurately (precisely) mounted at a predetermined position relative to the frame. However, according to the above configuration, since the seal member is positioned with respect to the frame by fitting the fitting portion of the seal member to the concave portion or convex portion formed on the surface of the frame by clinch bonding, the seal member is a frame Can be easily and accurately (accurately) mounted in the proper position (predetermined arrangement position) of

  As mentioned above, according to this invention, when attaching other members with respect to a flame | frame, the power supply device with easy positioning of other members with respect to this flame | frame can be provided.

FIG. 1 is a schematic view of a power supply device according to the present embodiment. FIG. 2 is a perspective view of a storage device and a seal member used in the power supply device. FIG. 3 is an exploded perspective view of the power storage device and the seal member. FIG. 4 is a perspective view of a storage element used in the storage device. FIG. 5 is a front view of the storage element. FIG. 6 is an exploded perspective view of the storage element. FIG. 7 is a diagram for explaining a junction portion in the power storage device and the periphery thereof. FIG. 8 is an enlarged perspective view of a bonding portion showing an example in which the distance between the recesses is different. FIG. 9 is an enlarged perspective view of a bonding site showing an example in which the recesses are equally spaced. FIG. 10 is a flowchart for explaining the method of manufacturing the power storage device. FIG. 11 is a view showing a state of the male mold before pressing in clinch bonding. FIG. 12 is a view showing a state after pressing of the male mold in clinch bonding. FIG. 13 is an enlarged view of a range shown by A of FIG. FIG. 14 is an enlarged perspective view of a bonding portion showing an example in which the shape of the recess is different. FIG. 15 is a partially enlarged view of the power storage device in a state where a bonding portion is bent before attaching a seal member. FIG. 16 is a flowchart for explaining a method of manufacturing a power storage device according to another embodiment. FIG. 17 is a figure for demonstrating the force which works at the time of bending of a folding piece and a joining piece. FIG. 18 is a perspective view of a power storage device and a duct according to another embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 12. In addition, the name of each component (each component) of this embodiment is in this embodiment, and may differ from the name of each component (each component) in background art.

  As shown in FIGS. 1 to 3, the power supply apparatus includes a plurality of power storage devices 1 and a plurality of power storage devices 8 each having a holding member 3 for holding the plurality of power storage elements 1 collectively. And a member (attachment member) 5. Further, the power supply device 9 is connected to the storage device 8 and the first duct 91 and the second duct 92 through which the fluid of the storage element 1 (in the example of the present embodiment, the outside air) flows. And a plurality of power storage devices 8, a first duct 91, a second duct 92, and a case 94 in which the fans 93 are disposed. The power supply device 9 of the present embodiment is a so-called battery pack mounted on an electric vehicle, a hybrid vehicle or the like. In the power supply device 9 of the present embodiment, the power storage device 8 also has a spacer 2 adjacent to the power storage element 1. The holding member 3 of the storage device 8 is made of a conductive material such as metal. Therefore, power storage device 8 also includes insulator 4 having insulation and disposed between power storage element 1 and holding member 3.

  The storage element 1 includes, as shown in FIGS. 4 to 6, an electrode assembly 12 including a positive electrode and a negative electrode, a case 10 for housing the electrode assembly 12, and a pair of external terminals 11 arranged on the outer surface of the case 10. Equipped with The storage element 1 also includes a current collector 13 for electrically connecting the electrode body 12 and the external terminal 11, and a bag-shaped insulating member 14 having an insulating property. The electrode body 12 and the current collector 13 are accommodated in the case 10 in a state of being accommodated (enclosed) in the insulating member 14. That is, the insulating member 14 is disposed between the electrode body 12 and the current collector 13 and the case 10 in the case 10 to insulate the electrode body 12 and the current collector 13 from the case 10.

  The case 10 has a case main body 100 having an opening, and a cover plate 101 for closing the opening of the case main body 100 and having a pair of external terminals 11 arranged on the outer surface.

  The case main body 100 includes a plate-like closing portion 100a, and a cylindrical trunk portion 100b connected to the periphery of the closing portion 100a so as to surround the closing portion 100a. The body 100b is in the form of a flat rectangular tube.

  The trunk portion 100b includes a pair of first walls 100c facing each other at an interval, and a pair of second walls 100d facing each other with the pair of first walls 100c interposed therebetween.

  The first wall 100c and the second wall 100d are arranged adjacent to each other with their end edges in abutment. Along with this, the edge of the adjacent first wall 100c and the edge of the second wall 100d are connected over the entire length. Thereby, the trunk | drum 100b is formed in square tube shape. One end of the body 100b is closed by the closing portion 100a, and the other end of the body 100b is open. This opening is closed by the cover plate 101.

  In the present embodiment, the surface area of the first wall 100c is larger than the surface area of the second wall 100d. For this reason, the trunk | drum 100b is flat angle cylinder shape.

  The power storage device 8 of the present embodiment includes a plurality of power storage elements 1. Each of the plurality of storage elements 1 is aligned in one direction. Power storage device 8 further includes bus bar 15 electrically connecting external terminals 11 of two adjacent power storage elements 1.

  In the following description, for convenience, the direction in which the storage elements 1 are aligned (first direction) is taken as the X-axis direction. In addition, Y is a direction (second direction) in which one of the two axial directions orthogonal to the alignment direction (X-axis direction) of the storage element 1 and the pair of second walls 100 d of the storage element 1 oppose each other (Y) A direction (third direction) in which the lid plate 101 of the storage element 1 and the closing portion 100a face each other is the Z-axis direction. Along with this, orthogonal coordinate axes respectively corresponding to the X-axis direction, the Y-axis direction, and the Z-axis direction are illustrated in the respective drawings.

  The spacer 2 has an insulating property. The spacer 2 of the present embodiment is arranged in the flow path (ventilation path) 25 in which a fluid (in the example of the present embodiment, cooling air) can flow between the storage element 1 and the storage element 1. Form. The spacer 2 has a base adjacent to the case 10 of the storage element 1 and a restricting portion for preventing positional deviation of the storage element 1 adjacent to the base. As shown in FIG. 3, the power storage device 8 of the present embodiment includes two types of spacers 2A and 2B. Specifically, storage device 8 includes a spacer (hereinafter referred to as an internal spacer) 2A disposed between two storage devices 1 and the most end of storage devices 1 (ie, the most end in the X-axis direction) And a spacer (hereinafter referred to as an external spacer) 2B adjacent to only the storage element 1 in FIG.

  The internal spacer 2A has a base 20A which extends along the storage element 1 adjacent between the storage elements 1, and a restricting portion 21A which prevents positional deviation of two storage elements 1 adjacent to the base 20A. The base 20A forms a flow path 25A between adjacent storage elements 1 in the X-axis direction. The base 20A of the present embodiment is formed in, for example, a rectangular wave shape to form the flow path 25A. The restricting portion 21A extends toward the adjacent power storage elements 1 in order to restrict the relative movement of the two power storage elements 1 adjacent to the internal spacer 2A.

  The external spacer 2B has a base 20B that extends along the adjacent storage element 1 and a restricting portion 21B that determines the position of the storage element 1 adjacent to the base 20B. The outer spacer 2 </ b> B faces the base 20 </ b> B and a terminal member 30 described later of the holding member 3. That is, the external spacer 2B is disposed between the storage element 1 and the termination member 30. The base 20B forms a flow passage 25B between the storage element 1 adjacent in the X-axis direction. In the base 20B of the present embodiment, for example, a plurality of ridges extending in the Y-axis direction from plate-like (plate-like) portions extending along the adjacent storage elements 1 and aligned in parallel at intervals in the Z-axis direction By being formed, the flow path 25B is formed. The restricting portion 21B extends toward the adjacent power storage element 1 in order to restrict the relative movement of the power storage element 1 adjacent to the external spacer 2B.

  As described above, the external spacers 2B of the present embodiment are arranged to be adjacent to the storage elements 1 at both ends in the X-axis direction. That is, the storage device 8 includes a pair of outer spacers 2B, and the pair of outer spacers 2B is provided in a pair so as to sandwich the plurality of aligned storage elements 1. Each of the pair of outer spacers 2B is arranged in a posture symmetrical to each other in the X-axis direction.

  As shown in FIGS. 2 and 3, the holding member 3 includes a pair of end members 30 sandwiching the storage element 1 and the spacer 2 (the inner spacer 2A and the outer spacer 2B) in the X-axis direction, the storage element 1 and the spacer 2. And a frame 31 extending in the X-axis direction and connecting the end members 30 to each other.

  Each of the pair of end members 30 has a main body 300 extending in a direction orthogonal to the X-axis direction, and a first bonding piece 301 extending from the peripheral edge of the main body 300 to the opposite side to the storage element 1 in the X-axis direction.

  The main body 300 is a plate-like portion extending along the storage element 1 (specifically, the base 20B of the outer spacer 2B). The main body 300 has an outline shape corresponding to the adjacent storage element 1 (specifically, the first wall 100 c of the body 100 b). That is, the main body 300 has a peripheral portion having substantially the same shape as that of the adjacent storage element 1 in the X-axis direction. Specifically, the main body 300 has a first end disposed at a position corresponding to the cover plate 101 of the storage element 1 and a second end opposite to the first end (corresponding to the closed portion 100 a of the storage element 1 And the second end). Further, main body 300 has a third end arranged at a position corresponding to one second wall 100d of storage element 1 and a fourth end opposite to the third end (the other second end of storage element 1 The wall 100d and the fourth end disposed at the corresponding position).

  The main body 300 also has at least one convex portion 302 that protrudes to the opposite side to the storage element 1 in the X-axis direction. The main body 300 of the present embodiment has, for example, two convex portions 302. A male screw 303 protrudes from the convex portion 302. Specifically, the head of the bolt is located between the convex portion 302 and the outer spacer 2B, and the male screw 303 of the bolt protrudes through the convex portion 302 to the outside. That is, the storage element 1 has a bolt in which the male screw 303 passes through the protrusion 302 from the inside of the main body 300 (between the main body 300 and the external spacer 2B) to the outside in the X-axis direction. The bolt is used when the power storage device 8 is fixed (arranged) to the power supply device 9 in which the power storage device 8 is housed, the vehicle on which the power storage device 8 is mounted, or the like.

  A plurality of first bonding pieces 301 are provided on the end member 30. Four first bonding pieces 301 are provided on the end member 30 of the present embodiment. Specifically, two first bonding pieces 301 are provided at the third end and the fourth end of the main body 300. Specifically, the first joint piece 301 is provided at the end on the first end side of the third end of the main body 300 and the end on the second end side. In addition, the first joint piece 301 is provided at the end on the first end side of the fourth end of the main body 300 and the end on the second end side. Each first bonding piece 301 is bonded to the frame 31.

  The frame 31 surrounds end openings 251 (251A, 251B) in the Y-axis direction of the flow path 25 (25A, 25B) formed between the storage element 1 and the spacer 2. Specifically, as shown in FIGS. 2, 3 and 7, the frame 31 surrounds a space (adjacent space) 252 adjacent to the end opening 251 of the flow path 25 and in communication with the flow path 25. The frame 31 has at least one recess or protrusion formed on the surface of the frame 31 by being clinched to the end member 30. The frame 31 of the present embodiment has a plurality of recesses 316. Specifically, the frame 31 includes a frame body 310 extending in the X-axis direction, and a second joining piece 315 extending in the X-axis direction from each of both ends of the frame body 310 so as to overlap with the first joining piece 301 of the termination member 30. And. The second bonding pieces 315 of the present embodiment are respectively provided at both ends of the frame main body 310.

  Frame body 310 extends in the X-axis direction along storage element 1 and spacer 2 and surrounds adjacent space 252. Specifically, the frame body 310 extends in the X-axis direction and is parallel to the Z-axis direction with a pair of connecting portions 311 extending in the Z-axis direction and connecting end portions of the pair of connecting portions 311 And a pair of supporting portions 312. As described above, the frame main body 310 of the present embodiment has a frame shape by connecting the end portions of the pair of connection portions 311 with each other by the pair of support portions 312 at both end positions in the X-axis direction. One of the pair of connection parts 311 extends along the end of the second wall 100 d of each of the storage elements 1 aligned in the X-axis direction along the lid plate 101 side, and the other is a second storage cell of each of the storage elements 1 aligned in the X-axis direction. It extends along the end of the double wall 100d at the side of the closed portion 100a. Further, each of the pair of support portions 312 extends in the Z-axis direction along the outer spacer 2B.

  The frame body 310 of the present embodiment also includes a reinforcing portion 313 extending in the Z-axis direction and connecting the central portions or substantially central portions of the pair of connection portions 311. Thus, since the reinforcing portion 313 connects central portions or substantially central portions in the X-axis direction of the pair of connecting portions 311, deformation of the pair of connecting portions 311 is suppressed in the power storage device 8 of the present embodiment. Be The reinforcing portion 313 of the present embodiment is disposed at a position overlapping the storage element 1 in the Y-axis direction. Thereby, the reinforcement part 313 does not become obstructive of the flow of the cooling air which passed 25 A of flow paths.

  The second joint pieces 315 are provided two each at both ends in the X-axis direction of the frame body 310. Each second bonding piece 315 is provided at a position corresponding to the first bonding piece 301 (specifically, a position overlapping in the Y-axis direction). The second bonding piece 315 has substantially the same shape as the first bonding piece 301 when viewed in the Y-axis direction. The second bonding piece 315 of the present embodiment is rectangular.

  The second bonding piece 315 is bonded to the first bonding piece 301. In the power storage device 8 of the present embodiment, the first bonding piece 301 and the second bonding piece 315 are clinched (joined by mechanical clinching). Thereby, a concave portion 316 (into the first bonding piece 301) is recessed on the surface (the surface opposite to the surface facing the first bonding piece 301) of the second bonding piece 315 at the bonding portion (the clinched portion). See FIG. 7). Thus, clinching (cold bonding) of the first bonding piece 301 and the second bonding piece 315 does not expose the bonding interface between metals unlike the bonding by resistance welding. For this reason, in the power storage device 8, the risk of corrosion or the like at the end of the power storage device 8 at which the temperature tends to be relatively high during use can be suppressed.

  In power storage device 8 of the present embodiment, the number of recesses 316 formed in second bonding piece 315 extending from one end of frame main body 310 in the X-axis direction and the second bonding piece 315 extending from the other end The number of recesses 316 formed is different. For example, as shown in FIG. 3, the number of the recesses 316 formed in the second bonding piece 315 on one side is one, and the number of the recesses 316 formed in the second bonding piece 315 on the other side is It is two. In addition, when three or more recessed parts 316 are formed in one 2nd joining piece 315, as shown in FIG. 8, each recessed part 316 is arranged side by side so that the space | interval of adjacent recessed parts 316 may differ. Alternatively, as shown in FIG. 9, they may be arranged side by side at equal intervals.

  The insulator 4 is made of an insulating material. The insulator 4 is disposed between the frame 31 and the storage element 1 as described above. For this reason, the insulator 4 has a shape corresponding to the frame 31 (in the example of the present embodiment, a frame shape). Specifically, the insulator 4 is disposed between the pair of first insulating portions 40 disposed between each of the pair of connection portions 311 and the storage element 1, and between each of the pair of support portions 312 and the storage element 1. And a pair of second insulating portions 41 arranged. The insulator 4 also has a third insulating portion 42 disposed between the reinforcing portion 313 and the storage element 1.

  Each of the plurality of power storage devices 8 configured as described above is incorporated in the power supply device 9. At this time, each power storage device 8 is fixed at a predetermined position in the case 94 by an external thread 303 protruding from the convex portion 302 of the end member 30.

  The seal member 5 is attached to the frame 31 so as to surround the adjacent space 252, as shown in FIGS. When the sealing member 5 is connected to the flow path 25 (25A, 25B), the supply device 93 or the ducts (first and second ducts) 91, 92 (see FIG. 1) for supplying or evacuating the cooling air are connected. , Between the frame 31 and the supply device 93 or the ducts 91, 92 to prevent the leakage of the cooling air from between the frame 31 and the supply device 93 or the ducts 91, 92. The seal member 5 is continuous along the surface of the frame 31 from the second joint piece 315 on one side to the second joint piece 315 on the other side in the X-axis direction. Further, the seal member 5 has a fitting portion 52 fitted (fitted) into the recess 316. Specifically, the seal member 5 includes the seal main body 51 sandwiched between the frame 31 and the supply device 93 or the ducts 91 and 92 when the supply device 93 or the ducts 91 and 92 are connected to the flow path 25; And a fitting portion 52 fitted in 316 to fix the seal main body 51 to the frame 31.

  The seal main body 51 is in the shape of a frame corresponding to the frame main body 310. That is, the seal main body 51 extends in the X-axis direction along the surfaces of the pair of connection portions 311 of the frame main body 310 and in the Z-axis direction along the surfaces of the pair of support portions 312. And an extending second portion 512. In the second portion 512 of this embodiment, the dimension in the X-axis direction is the sum of the dimension in the X-axis direction of the support portion 312 and the dimension in the X-axis direction of the second joint piece 315.

  The seal body 51 is made of a material suitable for filling the gap (for example, an elastically deformable material such as a rubber foam). The seal main body 51 of the present embodiment is configured of Ept Sealer (registered trademark).

  The fitting portion 52 is attached to the seal body 51 and extends into the recess 316 (see FIG. 7). By fitting the fitting portion 52 into the recess 316, the seal member 5 is fixed to the frame 31. A plurality of fitting portions 52 of the present embodiment are provided on the seal main body 51 (the number corresponding to the number of the recesses 316), and positions corresponding to the respective recesses 316 formed in the frame 31 (more specifically, the second bonding piece 315 Are disposed in the Y axis direction).

  Returning to FIG. 1, the first duct 91 has a plurality (the number corresponding to the number of power storage devices 8) connection openings 911 at one end (upstream end) in the flow direction of the cooling air, One opening 912 at the end (downstream end) of Each of the plurality of connection openings 911 is connected (pressed) to the frame 31 on one side in the Y-axis direction of the corresponding power storage device 8 via the seal member 5. The opening 912 is connected to the fan 93.

  The second duct 92 has one opening 921 at one end (upstream end) in the flow direction of the cooling air, and a plurality (the number of power storage devices 8) at the other end (downstream end) And the corresponding number of connection openings 922. The opening 921 is connected to an opening formed in the case 94. Each of the plurality of connection openings 922 is connected (pressed) to the frame 31 on the other side in the Y-axis direction of the corresponding power storage device 8 via the seal member 5.

  The fan 93 sucks the air (cooling air or the like) in the first duct 91 and exhausts it to the outside of the case 94.

  In the power supply device 9 configured as described above, the fan 93 sucks the air in the first duct 91 and exhausts it to the outside of the case 94, whereby the outside air is sucked in the second duct 92, and this outside air is The cooling air flows through the second duct 92, the flow paths 25 (25A, 25B) of the plurality of power storage devices 8, and the first duct 91. As a result, when the cooling air passes through the flow paths 25, the cooling air comes into contact with the storage element 1 to cool the storage element 1, whereby the cooling air whose temperature has risen passes through the first duct 91 and the case by the fan 93. Exhausted to the outside of 94. At this time, leakage of cooling air from between the ducts 91 and 92 and the frame 31 is prevented by the sealing member 5 sandwiched between the ducts 91 and 92 and the corresponding frames 31 of the power storage devices 8. Be

  Next, a method of manufacturing the power supply device 9 will be described with reference to FIGS.

  A plurality of power storage devices 8 are prepared. Each of the plurality of power storage devices 8 is manufactured, for example, as follows.

  Storage element 1 and internal spacer 2A are alternately arranged in the X-axis direction, external spacer 2B is arranged next to (outside) storage element 1 at the end of the X-axis direction, and further a termination member 30 are arranged (step S1). Subsequently, the frame 31 is disposed such that the insulator 4 is sandwiched between the plurality of storage elements 1 aligned in the X-axis direction and the frame 31 (step S2). At this time, as shown in FIG. 7, the first bonding pieces 301 and the second bonding pieces 315 overlap in the Y-axis direction.

  In this state, each first bonding piece 301 and the second bonding piece 315 are clinched (step S3). The clinched joint (joined by mechanical clinching) is, as shown in FIG. 11 and FIG. 12, a plate-like joint portion (in the example of the present embodiment, the first joint piece 301 and the second joint piece 315) A part is pushed into a female mold (die) 81 by a male mold (punch) 80, thereby locally bending the plate-like member and interlocking part (expanding diameter to the pressed plate material) Region (refer to FIG. 13) (join asperity fitting) by forming 317. In the present embodiment, TOX (registered trademark) bonding, which is a type of clinch bonding, is performed. In this TOX (registered trademark) bonding, since the cross section of the opening edge of the formed concave portion 316 has a rounded shape (arc shape), damage to the fitting portion 52 can be prevented.

  In the present embodiment, the female mold 81 is disposed on the inner side (the first joint piece 301 side) in the Y-axis direction, and the male mold 80 is disposed on the outer side (the second joint piece 315 side). It is joined. In addition, first joining piece 301 is clinched once to each of first joining piece 301 and second joining piece 315 overlapping at one end in the X-axis direction in power storage device 8 and overlapping at the other end. And clinch-joining with respect to each of the 2nd joining piece 315 twice.

  When the plurality of power storage devices 8 are prepared, subsequently, the seal member 5 is attached to each of the power storage devices 8. Specifically, each of the plurality of fitting portions 52 of the seal member 5 is fitted into the corresponding recess 316, respectively. Thereby, the seal member 5 is attached to the frame 31. In the sealing member 5, the fitting portion 52 may be fitted into the recess 316, and the seal main body 51 may be attached to the frame main body 310 with a double-sided tape or the like.

  Each storage device 8 to which the sealing member 5 is attached is fixed at a predetermined position in the case 94. Subsequently, in the case 94, the first duct 91 and the second duct 92 are connected to the respective power storage devices 8, and the fan 93 is connected to the first duct 91. Then, the case 94 is sealed leaving the opening 921 of the second duct and the exhaust port of the fan 93, whereby the power supply 9 is completed.

  By attaching the seal member 5 to the frame 31 of the power storage device 8 using the concave portion 316 formed in the frame 31 by clinch bonding as in the power supply device 9 described above, positioning of the seal member 5 with respect to the frame 31 is facilitated. Become. That is, according to the power supply device 9 of the present embodiment, the seal member 5 is a frame by fitting (fitting) the fitting portion 52 of the seal member 5 into the recess 316 formed on the surface of the frame 31 by clinch bonding. It is positioned relative to 31 so that the sealing member 5 is correctly mounted at the proper position (preset placement position) of the frame 31.

  In the power storage device 8 of the present embodiment, the number of the recesses 316 formed in the second bonding piece 315 on one side in the X-axis direction and the number of the recesses 316 formed in the second bonding piece 315 on the other side are It is different. Therefore, the attachment of the seal member 5 to the frame 31 in a state in which the posture of the seal member 5 with respect to the frame 31 is not correct (the fitting portion 52 is fitted in the recess 316 different from the scheduled recess 316) It can be reliably prevented. Specifically, the seal member 5 can be prevented from being attached to the frame 31 in the reverse direction in the X-axis direction.

  The power supply device of the present invention is not limited to the above embodiment, and it goes without saying that various changes can be made without departing from the scope of the present invention. For example, the configuration of one embodiment can be added to the configuration of another embodiment, and part of the configuration of one embodiment can be replaced with the configuration of another embodiment. In addition, some of the configuration of an embodiment can be deleted.

  In the power storage device 8 in the power supply device 9 of the above embodiment, all the bonding portions (the first bonding piece 301 and the second bonding piece 315) of the termination member 30 and the frame 31 are bonded by clinch bonding. It is not limited to. The bonding sites of a part of the plurality of bonding sites (the position and the number required for positioning of the seal member 5) are bonded by clinch bonding, and the remaining bonding sites are other bonding methods (fastening members such as bolts and nuts) , Welding, etc.). Even in this case, by fitting (fitting) the fitting portion 52 into the concave portion 316 formed by clinch bonding, the sealing member 5 with respect to the frame 31 is compared to the case where the sealing member is simply attached to the frame with double-sided tape or the like. Positioning becomes easy.

  Moreover, in the electrical storage apparatus 8 in the power supply apparatus 9 of the said embodiment, although each of several recessed part 316 formed in the surface of the flame | frame 31 by clinch joining is the same shape, it is not limited to this structure. For example, as shown in FIG. 14, at least one recess (deformed recess) 316A of the plurality of recesses 316 has the shape of the remaining recess 316B (the size of the diameter of the recess, the depth of the recess, the inner circumferential surface of the recess The shape may be different from that of In this case, the seal member 5 has a plurality of fitting portions 52 of the number and shape corresponding to the plurality of recessed portions 316 (316A, 316B). According to this configuration, by fitting the fitting portion 52 having a shape corresponding to the recess portion 316A into the predetermined recess portion 316 (deformed recess portion 316A), each of the plurality of fitting portions 52 corresponds to the corresponding recess portion 316 ( (316A, 316B) can be fitted respectively. Thereby, the attachment of the seal member 5 to the frame 31 in a state where the posture of the seal member 5 with respect to the frame 31 is not correct (the fitting portion 52 is fitted in the recess 316 different from the scheduled recess 316) It can prevent.

  In addition, in the power storage device 8 in the power supply device 9 of the above embodiment, the bonding portion (the first bonding piece 301 and the second bonding piece 315) of the termination member 30 and the frame 31 extends in the X axis direction. It is not limited to. For example, as shown in FIG. 15, the bonding site may be bent along the main body 300 of the end member 30. In this case, the joint portion is bent before the seal member 5 is attached, and then the fitting portions 52 are fitted into the respective recesses 316, and the seal member 5 is attached to the frame 31.

  Specifically, in power storage device 8A shown in FIG. 15, first junction piece 301 extends from the peripheral portion of main body 300 and is folded back to the opposite side of power storage element 1 so as to overlap main body 300 in the X-axis direction. A second joining piece 315 extends from the end of the frame main body 310 along the main body 300 so as to overlap with the first joining piece 301, and the first joining piece 301 and the second joining piece 315 are clinched to each other. Each of the plurality of fitting portions 52 of the sealing member 5 is fitted in the recess 316 by extending in the direction toward the main body 300 from the position facing the second joint piece 315 at both end positions of the frame main body 310.

  In this case, each of the concave portions 316 formed in the second bonding piece 315 extends from the second bonding piece 315 toward the main body 300 (the storage element 1) at the bonding site at both end positions of the storage device 8A in the X-axis direction. It's recessed. According to this configuration, since the second joint pieces 315 extend along the main body 300 from both ends of the frame main body 310 (that is, since the second joint pieces 315 at the both ends are opposed to each other in the X-axis direction) The recesses 316 formed on the surfaces of the second bonding pieces 315 at both ends are recessed in directions approaching each other in the X-axis direction. Thereby, even if a force is applied to the seal member 5 in the direction orthogonal to or substantially orthogonal to the X-axis direction between both ends of the frame main body 310, the fitting direction opposite to the fitting direction fitted to the recess 316 is reversed The force in the direction intersecting with the reverse direction is applied without applying a force in the direction (direction away from the main body 300 in the X-axis direction), so that the fitting portion 52 does not easily come off the recess 316. That is, even if a force is applied to the seal member 5 in a direction (a direction away from the frame body 310, etc.) with respect to the seal member 5 between the two ends of the frame body 310, the seal member 5 does not easily come off the frame 31.

  In such a configuration in which the bonding portion is bent, in the seal member 5 in a state of being removed from the frame 31, the second bonding piece at one end of the frame main body 310 in the X-axis direction (second bonding piece on one side) The fitting portion 52 to be fitted into the recess (one end recess) 316 formed in 315, and the recess (the other end) formed in the second joint piece (the second joint piece on the other side) of the other end of the frame main body 310 It is preferable that the distance along the seal member 5 between the fitting portion 52 fitted in the recess portion 316 and the distance along the frame 31 between the one end recess portion 316 and the other end recess portion 316 be smaller.

  Thus, from the distance along the frame 31 between the one end concave portion 316 and the other end concave portion 316, the fitting portion 52 and the other end concave portion which are fitted into the one end concave portion 316 in the sealing member 5 in a state removed from the frame 31 If the distance along the seal member 5 between the fitting portion 52 and the fitting portion 316 is smaller, the seal member 5 is attached to the frame 31 in a stretched state. As a result, the seal member 5 is pressed against the frame 31 (specifically, the portion surrounding the adjacent space 252) and is in close contact with the frame 31. Moreover, by attaching the seal member 5 to the frame 31 in a stretched state, the elastic return force of the seal member 5 forces the fitting portions 52 at both end positions of the frame main body 310 in the direction crossing the X axis direction. Thus, the fitting portion 52 is more difficult to come off from the recess 316.

  In the method of manufacturing power storage device 8A in which the bonding site is bent, the bonding site may be bent after seal member 5 is attached to frame 31. That is, in the method of manufacturing power storage device 8 of the above-described embodiment, power storage device 8 is formed in a state where the bonding portion extends in the X-axis direction (that is, termination member 30 and frame 31 are clinched: step S3 And the attachment of the seal member 5 to the frame 31 (step S4) and the bending (step S5) of the joined portion in the state where the seal member 5 is attached, as shown in FIG.

  In this case, the distance along the seal member between the fitting portion fitted into the one end recess 316 and the fitting portion fitted into the other end recess 316 and the distance between the one end recess 316 and the other end recess 316 before bending. The distance along the frame 31 may be the same. Also in this configuration, the seal member 5 is in a stretched state by bending the bonding portion. Specifically, it is as follows.

  When the first joint piece 301 and the second joint piece 315 in the clinched state are bent so as to overlap (follow) the main body 300 of the terminal member 30, as shown in FIG. 17, the first joint piece 301 is bent. A force in the compression direction is applied to the portion (see arrow α in FIG. 17), and a force is applied in the pulling direction to the bent portion of the second joint piece 315 (see arrow β in FIG. 17). As a result, when the first joint piece 301 and the second joint piece 315 are folded in a superimposed state, the outer piece (second joint piece 315) is stretched at the bending point, and as a result, clinching is performed. The distance along the frame 31 between the one end concave portion 316 and the other end concave portion 316 of the frame main body 310 is increased as compared with the state before the portion (the first joint piece 301 and the second joint piece 315) is bent. For this reason, when the storage device 8A is completed, the seal member 5 attached to the frame 31 is in a stretched state, and thus adheres to the frame (a part surrounding the adjacent space 252) by the elastic return force. Moreover, by attaching the seal member 5 to the frame 31 in a stretched state, the elastic return force of the seal member 5 forces the fitting portions 52 at both end positions of the frame main body 310 in the direction crossing the X axis direction. Thus, the fitting portion 52 is more difficult to come off from the recess 316.

  In the power supply device 9 of the above embodiment, the other member (attachment member) attached to the frame 31 using the concave portion 316 formed in the joint portion between the end member 30 and the frame 31 is the seal member 5. It is not limited to the configuration. For example, the mounting member may be a buffer member or a spacing member (such as a spacer) disposed between power storage device 8 or power storage device 8 and another member, or an insulating member covering bus bar 15. Further, as shown in FIG. 18, the mounting member is a duct 91, 92 for supplying a fluid such as cooling air to the flow path 25 of the storage device 8 or exhausting the fluid after passing through the flow path 25 to the outside. It may be. That is, in the power supply device 9 in which the ducts 91 and 92 are directly connected to the frame 31 without the seal member, the ducts 91 and 92 are attachment members. Each of these members has a fitting portion 52 to be fitted into the recess 316 at a contact portion with the frame 31 (specifically, a bonding portion between the end member 30 and the frame 31). That is, the attachment member may be a member attached at a predetermined position with respect to the frame 31, and may be a member having the fitting portion 52 at the contact portion with the frame 31. According to this configuration, the mounting member can be easily positioned relative to the frame 31 by attaching the member (mounting member) to the frame 31 using the concave portion 316 formed by clinch bonding. That is, the mounting member is positioned with respect to the frame 31 by fitting the fitting portion 52 of the mounting member into the concave portion 316 formed on the surface of the frame 31 by clinch bonding, whereby the mounting member is appropriate for the frame 31 It is accurately (precisely) mounted at the position (predetermined arrangement position).

  In the power supply device 9 of the above embodiment, the portion where the fitting portion 52 of the attachment member (the seal member 5 in the above embodiment) is fitted and the portion formed on the surface of the frame 31 is the recess 316 However, it is not limited to this configuration. The site | part with which the fitting part 52 of the attachment member in the flame | frame 31 is fitted may be a convex part. Even with this configuration, the fitting member is positioned relative to the frame 31 by fitting the fitting portion 52 of the fitting member (seal member 5 or the like) to the convex portion formed on the surface of the frame 31 by clinch bonding. Thus, the mounting member is correctly mounted at the proper position (predetermined placement position) of the frame 31.

  In the power supply device 9 of the above embodiment, the fluid is air (a gas for cooling the storage element 1: cooling air) whose temperature is lower than that of the storage element 1 or the like, but the invention is not limited to this configuration. The fluid may be air having a temperature higher than that of the storage element 1 or the like (a gas for heating the storage element 1 (warming air)). Further, the fluid is not limited to a gas, and may be a liquid such as a coolant. Note that, for example, the temperature of the storage element 1 may be measured, and the temperature or the flow rate of the above-described fluid may be adjusted so that the temperature of the storage element 1 becomes a predetermined value. That is, the above-described fluid may be a fluid for adjusting the temperature of the storage element 1.

Further, the method of manufacturing the power supply device 9 is, for example,
With the storage element 1 and the spacers 2A and 2B forming the flow path 25 through which fluid can flow between the storage element 1, the storage element 1 and the spacers 2A and 2B are arranged in the X axis direction. A frame 31 for connecting the end members 30 to each other with respect to a pair of end members 30 disposed so as to sandwich them in the X-axis direction along the storage element 1 and the spacers 2A and 2B in the X-axis direction It extends and is disposed so as to surround the end opening 251 of the flow passage 25, and the pair of end members 30 and the frame 31 are formed on the surface of the frame 31 so that at least one recess 316 or protrusion is formed. Clinching to the
An attachment member (seal member or the like) 5 having a fitting portion 52 fitted to the concave portion 316 or the convex portion and attached to the frame 31 so as to surround the end opening 251. When the supply device (fan or the like) 93 or the ducts 91 and 92 for supplying or evacuating the fluid is connected to the flow path 25, the frame 31 and the supply device 93 or the ducts 91 and 92 are sandwiched. Attaching the seal member 5 to the frame 31 by fitting the fitting portion 52 into the recess 316.

  As described above, by attaching the seal member 5 to the frame 31 using the concave portion 316 or the convex portion formed by clinch bonding, positioning of the seal member 5 with respect to the frame 31 is facilitated. That is, according to the above configuration, the seal member 5 is positioned with respect to the frame 31 by fitting the fitting portion 52 of the seal member 5 into the concave portion 316 or the convex portion formed on the surface of the frame 31 by clinch bonding. The seal member 5 is correctly attached to the appropriate position (predetermined arrangement position) of the frame 31.

In this case, a method of manufacturing the power supply device 9 is
Bending the clinched portion of the frame 31 and the pair of end members 30 in a state in which the seal member 5 is attached,
Each of the pair of termination members 30 is a main body (termination member main body) 300 which spreads in a direction orthogonal to the X-axis direction, and a first joint piece 301 which extends in the X-axis direction from the peripheral portion of the main body (termination member main body) 300. And
The frame 31 has a frame body 310 extending in the X-axis direction, and a second joint piece 315 extending in the X-axis direction from each end of the frame body 310,
The seal member 5 has a plurality of the fitting portions 52 and is elastically deformable and extends from a second joint piece 315 extending from one end of the frame main body 310 to a second end extending from the other end of the frame main body 310. Continuous along the surface of the frame 31 up to the joining piece 315,
In the clinch bonding, the first bonding piece 301 and the second bonding piece 315 are bonded in a state of being superimposed on each other at both end positions of the frame main body 310,
In the attachment of the seal member 5 to the frame 31, the recess 316 or the protrusion formed on the second joint piece 315 extending from the one end and the second joint piece 315 extending from the other end are formed. The plurality of fitting portions 52 are respectively fitted into the recessed portion 316 or the protruding portion,
In the bending of the clinched portion, the clinched first joint piece 301 and the second joint piece 315 are overlapped so as to overlap the main body (termination member main body) 300 in the X-axis direction. It is preferable to be bent in the state.

  According to this configuration, when the first bonding piece 301 and the second bonding piece 315 are folded in a state where they are overlapped, the outer piece (second bonding piece) 315 is stretched at the bending point, so the clinched portion The concave portion 316 or the concave portion 316 formed in the second joint piece 315 on one side of the frame body 310 after being bent as compared with the state before the (first joint piece 301 and the second joint piece 315) is bent. The distance along the frame 31 between the convex portion and the concave portion 316 or the convex portion formed in the second bonding piece 315 on the other side is increased. For this reason, when the power supply device 9 is completed, the seal member 5 attached to the frame 31 is in a stretched state, and hence the frame main body (portion surrounding the end opening of the flow path 25) 310 by elastic return force. Close to Moreover, by attaching the seal member 5 to the frame 31 in a stretched state, the elastic return force of the seal member 5 forces the fitting portions 52 at both end positions of the frame main body 310 in the direction crossing the X axis direction. The fitting portion 52 is less likely to come off the recess 316 or the protrusion.

  DESCRIPTION OF SYMBOLS 1 ... Storage element, 10 ... Case, 100 ... Case main body, 100a ... Blocking part, 100b ... Body part, 100c ... 1st wall, 100d ... 2nd wall, 101 ... Lid board, 11 ... External terminal, 12 ... Electrode body 13 Current collector 14 Insulating member 15 Busbar 2 Spacer 2A Internal spacer 20A Base 21A Regulatory portion 2B External spacer 20B Base 21B Regulatory portion 25 25A, 25B: flow path, 251, 251A, 251B: end opening, 252: adjacent space, 3: holding member, 30: termination member, 300: main body, 301: first joint piece, 302: convex portion, 303: 303 Male screw 31, frame 310, frame body 311, connection portion 312, support portion 313, reinforcement portion 315, second joint piece 316, concave portion (one end concave portion, other end concave portion) 316A irregular shape concave portion 16B Remaining concave portion 4 Insulator 40 First insulating portion 41 Second insulating portion 42 Third insulating portion 5 Sealing member (attachment member) 51 Seal body 511 First portion , 512: second part, 52: fitting part, 8, 8A: power storage device, 9: power supply device, 91: first duct, 911: connection opening, 912: opening, 92: second duct, 921 ... Opening, 922: Connection opening, 93: Fan, 94: Case, 80: male mold, 81: female mold

Claims (6)

A storage device having at least one storage element, a pair of end members sandwiching the storage element in a first direction, and a frame extending in the first direction along the storage element and connecting the end members to each other;
And a mounting member mounted at a predetermined position with respect to the frame,
The frame has at least one recess or protrusion formed on the surface of the frame by being clinched to the end member,
Before Quito with member has a fitting portion to be fitted into the concave portion or the convex portion to abut part of the frame, power supply. The frame has a plurality of the concave portions or the convex portions,
At least one recess or protrusion of the plurality of recesses or protrusions has a shape different from the shape of the remaining recesses or protrusions,
The mounting member has a plurality of the fitting portion of the number and shape corresponding to the plurality of recesses or projections, the power supply device according to claim 1. The frame has a plurality of the concave portions or the convex portions,
The number of the concave portions or the convex portions at the joining portion between one end member of the pair of end members and the frame, and the joining portion between the other end member of the pair of end members and the frame Different from the number of recesses or protrusions,
The power supply device according to claim 1, wherein the attachment member includes a plurality of the fitting portions whose number and arrangement correspond to the plurality of concave portions or convex portions. The power storage device has at least one spacer which is aligned with the power storage element in the first direction and forms a flow path through which fluid can flow between the power storage element and the power storage element.
Each of the pair of end members, and the end member body extending in a direction perpendicular to the first direction, extending from the peripheral edge of the end piece body, and the electric storage element to and overlap with the termination member body in a first direction And a first joining piece folded back to the opposite side,
The frame, Rutotomoni extends in a first direction along said power storage device, a frame body which surrounds the adjacent space and said channel communicating with each other next to the end opening of the passage, both ends of the frame body And a second joining piece extending along the end member body so as to overlap with the first joining piece,
The first joint piece and the second joint piece are clinched together,
Each of the second bonding pieces at both end positions of the frame main body is the recess or the protrusion formed by clinch bonding with the first bonding piece, and is recessed toward the end member main body A concave portion or the convex portion protruding in a direction away from the end member main body is provided on the surface,
The mounting member is continuous along the surface of the frame from the second joint piece extending from one end of the frame main body to the second joint piece extending from the other end of the frame main body,
Each of the plurality of fitting portions extends in a direction toward the end member main body from a position facing the joining portion at both end positions of the frame main body or is recessed in a direction away from the end member. The power supply device according to claim 3, which engages with the part. The mounting member is elastically deformable,
In the mounting member in a state of being removed from the frame, the fitting portion fitted to the concave portion or the convex portion formed in the second joint piece extending from the one end, and extending from the other end The distance along the attachment member between the recess formed in the second joint piece or the fitting portion fitted to the convex portion is formed in the second joint piece extending from the one end The power supply device according to claim 4, which is smaller than a distance along the frame between the recess or the protrusion and the recess or the protrusion formed in the second joint piece extending from the other end. The power storage device has at least one spacer which is aligned with the power storage element in the first direction and forms a flow path through which fluid can flow between the power storage element and the power storage element.
The attachment member is a seal member attached to the frame so as to surround an adjacent space adjacent to the end opening of the flow passage and in communication with the flow passage, the supply device or duct for supplying or exhausting the fluid The power supply device according to any one of claims 1 to 5, which is a seal member held between the frame and the supply device or the duct when being connected to the flow path.

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