Battery device and method for manufacturing the battery device

Abstract

To provide a technology for a battery device having a battery pack that is capable of improving easiness of assembly and replacement of a battery pack can be improved.SOLUTION: A battery device comprises a rack having a support member, and a battery unit installed on the support member of the rack. The battery unit includes a battery tray, and a battery pack loaded on the battery tray. An outer peripheral part of the battery tray has a fitting part that is configured to be fitted to a roller jig for sliding the battery unit on the support member.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to a battery device and a method for manufacturing a battery device. [Background technology]

[0002] Patent Document 1 discloses a power storage device that includes a battery panel and a battery pack disposed on a support plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 129385 Summary of the Invention [Problem to be solved by the invention]

[0004] Consider a battery device including a battery pack. As the battery pack becomes larger and heavier, it becomes more difficult to assemble and replace the battery pack.

[0005] One object of the present disclosure is to provide a technology that can improve the ease of assembling and replacing a battery pack in a battery device that includes a battery pack. [Means for solving the problem]

[0006] The first aspect relates to a battery device. The battery device a rack having a support member; A battery unit installed on a support member of a rack; Equipped with. The battery unit includes a battery tray and a battery pack mounted on the battery tray. The outer periphery of the battery tray has a fitting portion configured to fit with a roller jig for sliding the battery unit on the support member.

[0007] The second aspect relates to a method for manufacturing a battery device. The battery device includes a rack with a support member and a battery unit installed on the support member of the rack. The battery unit includes a battery tray and a battery pack mounted on the battery tray. The battery tray has a fitting portion on its outer periphery. The battery device manufacturing method includes: Attaching a roller jig to a fitting portion of the battery tray for sliding the battery unit on the support member; The battery unit with the roller jig attached is slid onto the support member, and the battery unit is installed in the rack. Includes: [Effects of the Invention]

[0008] According to the present disclosure, the outer periphery of the battery tray of the battery unit has a fitting portion configured to fit with a roller jig. The roller jig is attached to the fitting portion. The battery unit with the roller jig attached can be easily slid on the support member. In other words, the "ease of movement" of the battery unit is improved. Therefore, the battery unit can be easily installed (housed) in a rack. The battery unit can also be easily pulled out from the rack. In other words, the ease of assembly and replacement of the battery unit is improved. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram showing an example of the configuration of a battery device. [Figure 2] FIG. 2 is a diagram illustrating an example of the configuration of a battery unit. [Figure 3] FIG. 2 is a diagram illustrating an example of the configuration of a battery device. [Figure 4] FIG. 10 is a diagram illustrating a jig and a fitting portion. [Figure 5] FIG. 10 is a diagram illustrating an example of a jack jig. [Figure 6] FIG. 10 is a diagram illustrating another example of a jack jig. [Figure 7]FIG. 10 is a diagram illustrating an example of a roller jig. [Figure 8] FIG. 10 is a diagram for explaining an example of rail alignment. [Figure 9] FIG. 10 is a diagram for explaining an example of rail alignment. [Figure 10] FIG. 10 is a diagram for explaining an example of horizontal alignment. [Figure 11] FIG. 10 is a diagram for explaining an example of alignment in the depth direction. [Figure 12] 10A and 10B are diagrams illustrating an example of transport of a battery unit. DETAILED DESCRIPTION OF THE INVENTION

[0010] Embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0011] 1. Overview of the battery device 1 is a schematic diagram showing an example of the configuration of a battery device 1 according to this embodiment. The battery device 1 includes at least one battery unit 10 and a rack 100 that houses the battery unit 10. The battery unit 10 is replaceable. That is, the battery unit 10 can be inserted into the rack 100 from outside, and the battery unit 10 can also be removed from inside the rack 100 to the outside.

[0012] First, the coordinate system will be described. The XY plane is the plane on which the battery unit 10 is placed within the rack 100. The Z direction is the direction perpendicular to the XY plane. Typically, the XY plane is a horizontal plane, and the Z direction is the vertical direction. The X direction (first direction) is the depth direction. The Y direction (second direction) is the lateral direction perpendicular to the X direction. As will be described later, when assembling or replacing the battery unit 10, the battery unit 10 is moved parallel to the X direction. In other words, the battery unit 10 is inserted into or removed from the rack 100 along the X direction.

[0013] The rack 100 has a storage space 110 for storing the battery units 10. More specifically, the rack 100 includes multiple support columns 120 extending in the Z direction and support members 130 parallel to the XY plane. The support members 130 are fixed to the multiple support columns 120. The support members 130 support the battery units 10. In other words, the battery units 10 are placed on the support members 130. Therefore, the space above the support members 130 becomes the storage space 110. The storage space 110 can also be called a slot. The rack 100 is made of, for example, steel. The rack 100 may also include a top panel and doors (not shown).

[0014] Typically, the battery device 1 includes a plurality of battery units 10. In this case, the rack 100 has a plurality of storage spaces 110 (slots) for storing each of the plurality of battery units 10. More specifically, the plurality of storage spaces 110 are arranged in the Z direction, i.e., arranged in layers. A plurality of support members 130 are provided to correspond to the plurality of storage spaces 110. The plurality of battery units 10 are installed on each of the plurality of support members 130. As a result, the plurality of battery units 10 are also arranged in layers. The plurality of battery units 10 may be electrically connected to each other. In the example shown in FIG. 1 , the number of storage spaces 110 and battery units 10 is six. However, the number is not limited to six.

[0015] As will be described in detail later, the battery unit 10 moves (slides) on the support member 130 in the X direction. The shape of the support member 130 is not particularly limited as long as the battery unit 10 can move (slide) in the X direction. In the example shown in FIG. 1, the support member 130 is a long, narrow rail extending in the X direction. More specifically, the support member 130 supporting one battery unit 10 includes a pair of rails 130L, 130R. The left rail 130L is fixed to the support column 120 on the left side in FIG. 1. Meanwhile, the right rail 130R is fixed to the support column 120 on the right side in FIG. 1. The left rail 130L and the right rail 130R are parallel to each other and extend in the X direction. One battery unit 10 is installed on the pair of rails 130L, 130R.

[0016] In the following description, the support member 130 is considered to be a set of rails 130L, 130R as shown in Fig. 1. For convenience, the set of rails 130L, 130R will be collectively referred to as "rails 130." When generalizing, "rails 130" will be replaced with "support member 130."

[0017] 2 is a diagram showing an example configuration of the battery unit 10. The battery unit 10 includes a battery pack 20 and a battery tray 30. The battery pack 20 functions as a storage battery. The battery tray 30 is a tray for the battery pack 20. In other words, the battery pack 20 is mounted on the battery tray 30.

[0018] As shown in FIG. 2, the battery tray 30 includes a frame 40 , a bottom plate 50 , and a support member 60 .

[0019] The frame 40 can also be referred to as the "periphery" of the battery tray 30. The frame 40 includes a first frame 41 (first outer periphery) parallel to the X direction and a second frame 42 (second outer periphery) parallel to the Y direction. The first frame 41 includes a left frame 41L and a right frame 41R. The second frame 42 includes a front frame 42F and a rear frame 42B. The frame 40 is made of, for example, steel.

[0020] The lower plate 50 is surrounded by the frame 40 and forms the lower surface of the battery tray 30 .

[0021] The support member 60 is a member for supporting the battery pack 20, and is installed on the frame 40. In the example shown in FIG. 2, the support member 60 is installed on the first frame 41. The battery pack 20 is installed on this support member 60. For example, the support member 60 includes a bracket 61 for fixing the battery pack 20. The support member 60 may further include an insulator 62 for insulating the battery pack 20 from the frame 40. The insulator 62 is interposed between the frame 40 and the bracket 61.

[0022] The battery unit 10 is constructed by fixing the battery pack 20 onto the battery tray 30. Such a battery unit 10 can also be called a "battery subassembly."

[0023] 3 is an XY plan view and a YZ cross-sectional view showing the battery unit 10 (battery subassembly) installed on the rails 130 of the rack 100. The YZ cross-sectional view shows a YZ cross-section taken along line A-A' in the XY plan view. The first frame 41, which is parallel to the X direction, is installed on the rails 130, which are also parallel to the X direction. More specifically, the left frame 41L is installed on the left rail 130L, and the right frame 41R is installed on the right rail 130R.

[0024] The use of the battery device 1 described above is not particularly limited. For example, the battery device 1 is used as a stationary storage battery. The battery device 1 may be incorporated into an energy infrastructure. The battery device 1 may be installed as a backup power source.

[0025] The battery pack 20 used in the battery device 1 according to this embodiment may be an in-vehicle battery pack. Here, an in-vehicle battery pack refers to a battery pack developed and produced as a power source for electric vehicles or hybrid vehicles. Such an in-vehicle battery pack is "repurposed" as the battery pack 20 of the battery device 1.

[0026] For example, an automotive battery pack that has been used in a vehicle can be reused as the battery pack 20 of the battery device 1. Since the output and performance of an automotive battery pack are originally very high, even a used automotive battery pack can be fully used for purposes other than vehicles. It is expected that the number of automotive battery packs produced and used will continue to increase in the future. Reusing such abundant automotive battery packs as the battery pack 20 of the battery device 1 is not only favorable for the environment, but also desirable from the perspective of energy conservation.

[0027] As another example, a new in-vehicle battery pack may be used as the battery pack 20 of the battery device 1 from the beginning. Since in-vehicle battery packs are produced in large numbers, their production costs are low. In other words, in-vehicle battery packs are advantageous in terms of quantity and cost. Repurposing such abundant and low-cost in-vehicle battery packs is preferable from the perspective of energy conservation.

[0028] When an in-vehicle battery pack is used as the battery pack 20 of the battery device 1, it is desirable to insulate the in-vehicle battery pack from the frame 40 from the viewpoint of pressure resistance design. For this purpose, it is desirable to interpose an insulator 62 (see FIG. 2) between the in-vehicle battery pack and the frame 40.

[0029] 2. Improved mobility of the battery unit 3, the battery unit 10 including the battery pack 20 is installed on rails 130. When assembling or replacing the battery unit 10, the battery unit 10 moves (slides) along the X direction on the rails 130. As the battery pack 20 becomes larger and heavier, it becomes more difficult to move the battery unit 10 including the battery pack 20, making assembly or replacement more difficult.

[0030] Therefore, this embodiment proposes a technique that can improve the ease of assembling and replacing the battery unit 10. First, a method for improving the "ease of moving" the battery unit 10 will be described.

[0031] According to this embodiment, a jig 200 is attached to the battery unit 10 to improve the ease of movement of the battery unit 10 when assembling or replacing the battery unit 10. The jig 200 for improving the ease of movement of the battery unit 10 includes a jack jig 210 and a roller jig 220. The jack jig 210 is a jig for jacking up the battery unit 10. The roller jig 220 is a jig for sliding the battery unit 10 on the rails 130. Before explaining specific examples of the jack jig 210 and the roller jig 220, the structure of the battery unit 10 for attaching the jig 200 will be described.

[0032] According to this embodiment, the frame 40 (outer periphery) of the battery tray 30 of the battery unit 10 has a "fitting portion 45" configured to fit with the jig 200. For example, the first frame 41 (first outer periphery) parallel to the X direction has the fitting portion 45. In the example shown in FIG. 3, the cross-sectional shape of the fitting portion 45 in the YZ plane is a C-shape that opens toward the outside of the battery tray 30 in the Y direction. For example, the cross-sectional shape of the fitting portion 45L of the left frame 41L in FIG. 3 is a C-shape that opens toward the left. On the other hand, the cross-sectional shape of the fitting portion 45R of the right frame 41R is a C-shape that opens toward the right.

[0033] 4 shows a state in which the jig 200 is attached to the fitting portion 45 of the first frame 41. The format of FIG. 4 is the same as that of FIG. 3. As shown in FIG. 4, a portion of the jig 200 is inserted into the fitting portion 45, thereby fitting the jig 200 and the fitting portion 45 (first frame 41). In the example shown in FIG. 4, the jig 200 is placed on the rail 130 and is interposed between the rail 130 and the frame 40.

[0034] FIG. 5 is a diagram illustrating an example of a jacking jig 210 for jacking up the battery unit 10. The jacking jig 210 includes a first member 211 and a second member 212. The first member 211 and the second member 212 are in contact at a contact surface 213. The contact surface 213 is an inclined surface. More specifically, the contact surface 213 is an inclined surface that faces obliquely upward when viewed from the first member 211, and is an inclined surface that faces obliquely downward when viewed from the second member 212. The underside of the first member 211 is in contact with the rail 130. A portion of the second member 212 is inserted into a fitting portion 45 of the first frame 41, thereby attaching the jacking jig 210 to the fitting portion 45.

[0035] The jack jig 210 and the fitting portion 45 may be fixed by a pin 214 so that the jack jig 210 does not come off from the fitting portion 45. In this case, as shown in FIG. 5 , a through hole 44 into which the pin 214 is inserted is present on the upper surface of the fitting portion 45. After the second member 212 of the jack jig 210 is inserted into the fitting portion 45, the pin 214 is inserted into the through hole 44. The pin 214 fixes the jack jig 210 (second member 212) and the fitting portion 45 together.

[0036] Furthermore, a bolt 215 (e.g., a hexagonal bolt) penetrates the first member 211 in the horizontal direction, connecting the first member 211 and the second member 212. In the example shown in FIG. 5, the bolt 215 penetrates the first member 211 in the Y direction. The bolt 215 can be tightened or loosened by turning it with a wrench (e.g., a hexagonal wrench). When the bolt 215 is tightened, the horizontal force is converted into a Z-direction force via the contact surface 213 (inclined surface), which pushes up the second member 212. Pushing up the second member 212 in the Z direction jacks up the first frame 41, i.e., the battery unit 10. In other words, the battery unit 10 can be easily jacked up simply by turning the bolt 215 with a wrench.

[0037] FIG. 6 is a diagram illustrating another example of the jacking jig 210. In the example shown in FIG. 6, the arrangement of the first member 211 and the second member 212 is rotated 90 degrees compared to the example shown in FIG. 5. The bolt 215 penetrates the first member 211 in the X direction. The second frame 42 has a through-hole 43 penetrating the second frame 42 in the X direction. The position of the through-hole 43 corresponds to the fitting portion 45 of the first frame 41. In particular, the position of the through-hole 43 corresponds to the bolt 215 of the jacking jig 210 attached to the fitting portion 45. A wrench is inserted into the through-hole 43 from the front of the second frame 42 and reaches the bolt 215 of the jacking jig 210. The battery unit 10 is then jacked up by turning the bolt 215 with the wrench. The configuration shown in FIG. 6 is particularly suitable when the side space of the battery device 1 is narrow. Even if the side space of the battery device 1 is narrow, the jack jig 210 can be easily operated by inserting a wrench from the front or rear.

[0038] FIG. 7 is a diagram illustrating an example of a roller jig 220 for sliding the battery unit 10 on the rail 130. The format of FIG. 7 is the same as that of FIGS. 3 and 4. As shown in FIG. 7, a portion of the roller jig 220 is inserted into the fitting portion 45, thereby attaching the roller jig 220 to the fitting portion 45. The portion of the roller jig 220 that is not inserted into the fitting portion 45 has a roller ball 222 that comes into contact with the rail 130. This roller ball 222 rolls on the rail 130. As a result, the battery unit 10 attached to the roller jig 220 slides on the rail 130 in a direction parallel to the X direction. A groove along which the roller ball 222 rolls may be formed on the top surface of the rail 130, parallel to the X direction.

[0039] The jack jig 210 and the roller jig 220 may be prepared separately or may be configured as an integrated unit. When the jack jig 210 and the roller jig 220 are prepared separately, the jack jig 210 is first attached to the fitting portion 45. Then, the battery unit 10 is jacked up using the jack jig 210. After jacking up, the roller jig 220 is attached to the fitting portion 45. After the roller jig 220 is attached, the jack jig 210 may be removed. On the other hand, in the case of an integrated jig, the integrated jig is attached to the fitting portion 45 and then jacked up. In either case, the battery unit 10 to which the roller jig 220 is attached slides on the rails 130.

[0040] After the battery unit 10 is installed (stored) in the rack 100, the jig 200 may be removed or may be left as is.

[0041] <Effects> As described above, according to this embodiment, the frame 40 of the battery tray 30 of the battery unit 10 has a fitting portion 45 configured to fit with the roller jig 220. The roller jig 220 is attached to the fitting portion 45. The battery unit 10 with the roller jig 220 attached can easily slide on the rails 130. In other words, the "ease of movement" of the battery unit 10 is improved. Therefore, the battery unit 10 can be easily installed (housed) in the rack 100. The battery unit 10 can also be easily pulled out from the rack 100. In other words, the ease of assembly and replacement of the battery unit 10 is significantly improved. Assembly and replacement of the battery unit 10 can be performed more efficiently.

[0042] Furthermore, by using the roller jig 220, the battery unit 10 can be slid on the rail 130, eliminating the need to drag the battery unit 10 along the rail 130. This prevents damage to the painted surface of the rail 130. This is preferable from the perspective of ensuring the durability and waterproof performance of the rail 130.

[0043] As the battery pack 20 becomes larger and heavier, the effect obtained by this embodiment becomes more significant.

[0044] 3. Alignment Next, a description will be given of the techniques for assembling the battery unit 10 and aligning it when replacing it.

[0045] 3-1. Aligning the rails 8 and 9 are diagrams illustrating an example of the alignment of the rails 130. When assembling or replacing a battery unit 10, the auxiliary rails 300 on the outside of the rack 100 are connected to the rails 130 on the rack 100 side. When the battery unit 10 is inserted into the rack 100, the battery unit 10 on the auxiliary rails 300 slides toward the rails 130 on the rack 100 side. Conversely, when the battery unit 10 is pulled out of the rack 100, the battery unit 10 on the rails 130 on the rack 100 side slides toward the auxiliary rails 300.

[0046] To smoothly slide the battery unit 10, it is important to align the rail 130 on the rack 100 side with the auxiliary rail 300 outside the rack 100. For this purpose, an alignment pin 310 is used. For example, as shown in FIG. 8 , an alignment hole 131 into which the alignment pin 310 is inserted is formed at the end of the rail 130 on the rack 100 side. The rail 130 and the auxiliary rail 300 are connected so that the alignment pin 310 is inserted into the alignment hole 131. In this connected state, the top surfaces and lateral positions of the rail 130 and the auxiliary rail 300 are aligned. Conversely, the alignment hole 131 is formed so that the top surfaces and lateral positions of the rail 130 and the auxiliary rail 300 are aligned.

[0047] In this way, the alignment pin 310 allows for precise alignment of the rail 130 and the auxiliary rail 300. This allows the battery unit 10 to slide smoothly between the rail 130 and the auxiliary rail 300. This also contributes to making the battery unit 10 easier to assemble and replace.

[0048] 3-2. Horizontal alignment FIG. 10 is a diagram illustrating an example of horizontal (Y-direction) alignment. The format of FIG. 10 is the same as that of FIGS. 3, 4, and 7. A cam follower 400 is attached to the bottom plate 50 of the battery tray 30. To this end, the bottom plate 50 of the battery tray 30 has holes 51 into which the cam follower 400 is attached. A bolt for the cam follower 400 is inserted into the holes 51. The roller of the cam follower 400 contacts the side surface 132 of the rail 130 and moves parallel to the X-direction along the side surface 132 of the rail 130. Conversely, the holes 51 for attaching the cam follower 400 are formed in the bottom plate 50 of the battery tray 30 so that the roller of the cam follower 400 contacts the side surface 132 of the rail 130.

[0049] Typically, a left cam follower 400L that contacts the side surface 132L of the left rail 130L and a right cam follower 400R that contacts the side surface 132R of the right rail 130R are provided separately. The left cam follower 400L and the right cam follower 400R move along the side surface 132L of the left rail 130L and the side surface 132R of the right rail 130R, respectively.

[0050] Such cam followers 400 prevent the battery unit 10 from wobbling in the lateral direction. In other words, the lateral position of the battery unit 10 can be maintained at a predetermined position. Therefore, the battery unit 10 can be smoothly slid along the X direction. This also contributes to improving the ease of assembly and replacement of the battery unit 10.

[0051] After the battery unit 10 is installed (stored) in the rack 100, the cam follower 400 may be removed or may be left as is.

[0052] 3-3. Depth alignment FIG. 11 is a diagram illustrating an example of alignment in the depth direction (X direction). A positioning pin 500 is installed at a predetermined position on the rail 130. As the battery unit 10 slides along the rail 130 in the X direction, it comes into contact with the positioning pin 500 and stops. The worker simply pushes the battery unit 10 until it comes into contact with the positioning pin 500 and stops. This also contributes to making the battery unit 10 easier to assemble.

[0053] 4. Ensuring horizontality 12 is a diagram illustrating an example of transportation of the battery unit 10. In the example shown in Fig. 12, the battery unit 10 is transported to the vicinity of the rack 100 by a lift. Then, the battery unit 10 is lifted to a desired height by the lift and inserted into the rack 100.

[0054] More specifically, a case 600 (tower) is prepared for housing the battery unit 10. The case 600 includes a platform 610 on which the battery unit 10 is placed. The platform 610 may include an auxiliary rail 300. The case 600 is also provided with a chain block 620 that is connected to the platform 610. Typically, the chain block 620 is provided at each of the four corners of the case 600.

[0055] The battery unit 10 is placed on a platform 610 inside the case 600. A chain block 620 is connected to the platform 610. The case 600 containing the battery unit 10 is transported to the vicinity of the rack 100 by a lift. The case 600 is then raised to a desired height by the lift. The battery unit 10 is then moved from inside the case 600 into the rack 100.

[0056] Depending on the inclination or condition of the ground on which the lift is located, the case 600 may tilt from the horizontal plane. Even in such a case, the platform 610 on which the battery unit 10 is placed can be kept horizontal by operating the chain block 620 provided on the case 600. A worker can move the battery unit 10 into the rack 100 while keeping the platform 610 on which the battery unit 10 is placed horizontal. This also contributes to improving the ease of assembly of the battery unit 10.

[0057] It should be noted that a crane may be used instead of a lift to transport and lift the case 600.

[0058] 5. Battery device manufacturing method (assembly method) The manufacturing method (assembly method) of the battery device 1 is outlined below.

[0059] The worker uses a lift to transport the case 600 containing the battery unit 10 to the vicinity of the rack 100. The worker also uses the lift to lift the case 600 to a desired height. At this time, the worker may keep the battery unit 10 horizontal by operating the chain block 620 (see Section 4).

[0060] The worker connects the auxiliary rail 300 to the rail 130 on the rack 100 side. At this time, the worker may align the rail 130 and the auxiliary rail 300 using the alignment pin 310 (see Section 3-1).

[0061] The worker attaches the jack jig 210 to the fitting portion 45 of the battery tray 30. The worker uses the jack jig 210 to jack up the battery unit 10. After jacking up, the worker attaches the roller jig 220 to the fitting portion 45. Alternatively, the jack jig 210 and the roller jig 220 may be configured as an integrated unit. The worker slides the battery unit 10 with the roller jig 220 attached onto the rails 130, and installs (stores) the battery unit 10 in the rack 100 (see Section 2).

[0062] The worker may attach the cam follower 400 to the bottom plate 50 of the battery tray 30. In this case, the worker slides the battery unit 10 with the roller jig 220 attached onto the rail 130 so that the cam follower 400 moves along the side surface 132 of the rail 130 (see Section 3-2).

[0063] The worker pushes the battery unit 10 until it comes into contact with the positioning pin 500 and stops.

[0064] In this way, the battery unit 10 is installed in the rack 100, and the battery device 1 is completed. [Explanation of symbols]

[0065] 1 Battery device 10 Battery unit 20 Battery pack 30 Battery Tray 40 frames 41 First Frame 42 2nd frame 45 Fitting part 100 racks 110 storage space 130 Support member, rail 200 Jig 210 Jack jig 220 Roller jig

Claims

1. A battery device manufacturing method for manufacturing a battery device, comprising: The battery device is a rack having a support member; a battery unit installed on the support member of the rack; Equipped with the battery unit includes a battery tray and a battery pack mounted on the battery tray; The outer periphery of the battery tray has a fitting portion, The battery device manufacturing method includes: attaching an integrated jig to the fitting portion of the battery tray, the integrated jig comprising a jack jig for jacking up the battery unit against the support member and a roller jig for sliding the battery unit on the support member; jacking up the battery unit by adjusting the tightness of fasteners attached to the jack jig, and then sliding the battery unit to which the roller jig is attached on the support member, and installing the battery unit in the rack; Contains Battery device manufacturing method.

2. A battery device manufacturing method for manufacturing a battery device, comprising: The battery device is a rack having a support member; a battery unit installed on the support member of the rack; Equipped with the battery unit includes a battery tray and a battery pack mounted on the battery tray; The outer periphery of the battery tray has a fitting portion, The battery device manufacturing method includes: attaching a jacking jig to the fitting portion of the battery tray for jacking up the battery unit relative to the support member; jacking up the battery unit by adjusting the tightness of the fasteners attached to the jack jig, and then attaching a roller jig, which is different from the jack jig, to a portion of the fitting portion of the battery tray where the jack jig is not attached, for sliding the battery unit on the support member; sliding the battery unit with the roller jig attached on the support member, and installing the battery unit in the rack; Contains Battery device manufacturing method.

3. A method for manufacturing a battery device according to claim 1 or 2, The jack jig includes a first member and a second member that contact each other, The fastener is a threaded fastener that penetrates the first member and constrains the first member and the second member, a contact surface between the first member and the second member is an inclined surface that faces obliquely upward when viewed from the first member, The battery device manufacturing method includes: and further comprising tightening the screw fastener to push up the second member to jack up the battery unit. Battery device manufacturing method.

4. 3. The battery device manufacturing method according to claim 1 or 2, the first direction is parallel to a direction in which the battery unit slides on the support member; the support member of the rack is a rail extending in the first direction, The battery device manufacturing method includes: a cam follower that moves along a side surface of the rail is attached to a lower surface of the battery tray; Sliding the battery unit to which the roller jig is attached on the rail so that the cam follower moves along the side surface of the rail; Further includes Battery device manufacturing method.

5. 3. The battery device manufacturing method according to claim 1 or 2, placing the battery unit on a platform in a case for transporting the battery unit; Connecting one or more chain blocks provided in the case to the platform; operating the one or more chain blocks to keep the platform on which the battery unit is placed horizontal; jacking up the battery unit against the support member while keeping the table horizontal, and then sliding the battery unit with the roller jig attached on the support member to install the battery unit in the rack; Further includes Battery device manufacturing method.

6. A method for manufacturing a battery device according to claim 5, The one or more chain blocks include a plurality of chain blocks. Battery device manufacturing method.

Images