Battery
By attaching the handle to the lid in a direction orthogonal to the cell chamber arrangement, the battery is miniaturized while maintaining handle functionality and maze structure design freedom, addressing limitations in existing lead-acid battery designs.
Patent Information
- Application Number
- JP2023216941
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-07-03
AI Technical Summary
Existing lead-acid batteries face limitations in miniaturization due to handle attachments at both ends of the lid, restricting the shortening of cell compartments, and the maze structure for electrolyte vapor management.
The battery design includes a handle attachment on the lid in a direction orthogonal to the cell chamber arrangement, allowing the lid to be shortened without obstructing the handle attachment, thereby enabling miniaturization while maintaining functional components.
The design achieves miniaturization of the battery by shortening the lid without compromising handle functionality, ensuring design freedom for the maze structure and ease of maintenance access.
Smart Images
Figure 2025099936000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a battery such as a lead-acid battery.
Background Art
[0002] Patent Document 1 describes a lead-acid battery (battery) for an automobile. This lead-acid battery includes a battery case, a lid heat-welded to the opening of the battery case, and handles respectively attached to the central portions of both sides on the short side facing the lid.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0004] A lead-acid battery may be mounted in a trunk room or an interior space of a vehicle. Since it is difficult to secure a wide area for arranging the lead-acid battery in the trunk room or the interior space of the vehicle, the lead-acid battery mounted in the trunk room or the interior space of the vehicle is required to be smaller than the conventional one. The miniaturization of the lead-acid battery is generally achieved by shortening it in the arrangement direction of the cell compartments. However, in the lead-acid battery described in Patent Document 1, since the attachment portions to which the handles are attached are provided at both ends of the lid in the arrangement direction of the cell compartments, there is a limit to shortening it in the arrangement direction of the cell compartments. In particular, in a lead-acid battery in which a plurality of exhaust chambers corresponding to each cell compartment are provided in the lid, a maze structure for liquefying the water vapor of the electrolyte generated in each cell compartment and refluxing it to each cell compartment is constructed in each exhaust chamber (see, for example, Patent Document 2). Therefore, there is also a limit to shortening it in the arrangement direction of the cell compartments from the viewpoint of ensuring the design freedom of the maze structure of each exhaust chamber.
[0005] Therefore, an object of the present invention is to provide a battery that can be miniaturized while attaching a handle to a lid.
Means for Solving the Problems
[0006] The battery according to the present invention includes a battery case having a plurality of cell chambers arranged in a first direction, a lid attached to the upper part of the battery case, and a handle attached to the lid. The lid has an attachment portion for attaching the handle in a direction intersecting the first direction in a plan view.
[0007] In this battery, by attaching the handle to the attachment portion of the lid, the handle is attached in a direction intersecting the first direction in a plan view. Therefore, the lid can be shortened in the first direction without being restricted by the attachment portion. For this reason, it is possible to miniaturize while attaching a handle to the lid.
Advantages of the Invention
[0008] According to the present invention, it is possible to miniaturize while attaching a handle to a lid.
Brief Description of the Drawings
[0009]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Embodiments for Carrying out the Invention
[0010] Hereinafter, embodiments of the battery of the present invention will be described with reference to the drawings. In this embodiment, the battery of the present invention is applied to a lead-acid battery mounted in the trunk room or the interior space of a vehicle. In the description of the drawings, the same elements are denoted by the same reference numerals, and duplicate descriptions are omitted.
[0011] FIG. 1 is a plan view of a lead-acid battery according to an embodiment. FIG. 2 is a front view of the lead-acid battery shown in FIG. 1. FIG. 3 is a rear view of the lead-acid battery shown in FIG. 1. FIG. 4 is a side view of the lead-acid battery shown in FIG. 1. As shown in FIGS. 1 to 4, the lead-acid battery 1 according to this embodiment includes a battery case 2, a lid 3, and a handle 4. The height direction of the lead-acid battery 1 is referred to as the height direction H. Also, the up and down directions refer to the up and down directions in the height direction H.
[0012] FIG. 5 is a plan view of the battery case. As shown in FIGS. 1 to 5, the battery case 2 has an open upper surface and houses a plate group (not shown) and an electrolyte (not shown). The battery case 2 has a plurality of cell chambers 11A to 11F. The plate group and the electrolyte are housed in each of the cell chambers 11A to 11F. The cell chambers 11A to 11F are partitioned by a partition wall 12 and arranged in a first direction D1. The first direction D1 is a direction orthogonal to the height direction H, and the direction orthogonal to the height direction H and the first direction D1 is referred to as a second direction D2. Each of the cell chambers 11A to 11F extends in the second direction D2.
[0013] As shown in FIGS. 1 to 4, the lid 3 is attached to the upper part of the battery case 2 and closes the opening of the battery case 2. The lid 3 includes a cover portion 13 and a raised portion 14.
[0014] The cover part 13 is attached to the upper part of the battery case 2 so as to close the opening of the battery case 2. The cover part 13 is provided with a positive electrode terminal 17 which is the positive-side electrode terminal and a negative electrode terminal 18 which is the negative-side electrode terminal. The positive electrode terminal 17 is provided near one end in the first direction D1 of the cover part 13. The negative electrode terminal 18 is provided near the other end in the first direction D1 of the cover part 13. The electrode plate group in the battery case 2 is electrically connected to the positive electrode terminal 17 and the negative electrode terminal 18.
[0015] The raised part 14 protrudes from the upper surface 13a of the cover part 13. The raised part 14 is provided so as to avoid the positive electrode terminal 17 and the negative electrode terminal 18. The raised part 14 is composed of a first raised part 14A and a second raised part 14B. The first raised part 14A extends in the first direction D1 at a position closer to one side (the upper side in FIG. 1) in the second direction D2. The second raised part 14B extends from the central part of the first raised part 14A in the first direction D1 toward the other side (the lower side in FIG. 1) in the first direction D1.
[0016] FIG. 6 is a plan view of the lower cover part. FIG. 7 is a plan view of the upper cover part. As shown in FIGS. 1 to 4, 6, and 7, the cover 3 has a double cover structure including a lower cover part 15 and an upper cover part 16. The lower cover part 15 constitutes the cover part 13, a part below the first raised part 14A, and the second raised part 14B. The upper cover part 16 constitutes a part above the first raised part 14A.
[0017] The lower cover part 15 forms the outer shape of the cover 3 in a plan view (viewed from the height direction H). The ratio (d1 / d2) of the length d1 in the first direction D1 of the lower cover part 15 to the width d2 in the second direction D2 of the lower cover part 15 may be 1.1 or less. Also, the ratio (d1 / d2) of the length d1 in the first direction D1 of the lower cover part 15 to the width d2 in the second direction D2 of the lower cover part 15 may be 0.9 or more.
[0018] In addition, the lid 3 has a plurality of exhaust chambers 20A to 20F, an exhaust passage 21, a plurality of electrolyte inlets 22A to 22F, a plurality of reflux holes 23A to 23F, a pair of exhaust ports 24A and 24B, an indicator mounting hole 25, a first mounting portion 26A, and a second mounting portion 26B.
[0019] The exhaust chambers 20A to 20F and the exhaust passage 21 are formed between the lower lid portion 15 and the upper lid portion 16. The exhaust chambers 20A to 20F are provided corresponding to the cell chambers 11A to 11F. That is, the exhaust chamber 20A corresponds to the cell chamber 11A, the exhaust chamber 20B corresponds to the cell chamber 11B, the exhaust chamber 20C corresponds to the cell chamber 11C, the exhaust chamber 20D corresponds to the cell chamber 11D, the exhaust chamber 20E corresponds to the cell chamber 11E, and the exhaust chamber 20F corresponds to the cell chamber 11F, respectively. The exhaust chambers 20A to 20F are arranged in the first direction D1 in the same manner as the cell chambers 11A to 11F. Each of the exhaust chambers 20A to 20F extends in the second direction D2. The exhaust chambers 20A to 20F have barrier walls 27A to 27F for liquefying the water vapor of the electrolyte. The barrier walls 27A to 27F construct a labyrinth structure for liquefying the water vapor of the electrolyte in the exhaust chambers 20A to 20F. The barrier walls 27A to 27F are arranged such that the water vapor of the electrolyte meanders and progresses in the exhaust chambers 20A to 20F. The exhaust passage 21 extends in the first direction D1 and communicates with the exhaust chambers 20A to 20F.
[0020] The electrolyte inlets 22A to 22F are holes for injecting electrolyte into the cell chambers 11A to 11F. The electrolyte inlets 22A to 22F are provided corresponding to the cell chambers 11A to 11F. That is, the electrolyte inlet 22A corresponds to the cell chamber 11A, the electrolyte inlet 22B corresponds to the cell chamber 11B, the electrolyte inlet 22C corresponds to the cell chamber 11C, the electrolyte inlet 22D corresponds to the cell chamber 11D, the electrolyte inlet 22E corresponds to the cell chamber 11E, and the electrolyte inlet 22F corresponds to the cell chamber 11F, and are respectively provided. The electrolyte inlets 22A to 22F penetrate the lid 3 in the height direction H so as to communicate the cell chambers 11A to 11F with the outside of the lid 3. The electrolyte inlets 22A to 22F are formed by hollow inlet peripheral walls 28A to 28F for isolating the exhaust chambers 20A to 20F. The inlet peripheral walls 28A to 28F are formed by the lower lid portion 15 and the upper lid portion 16. Liquid plugs 29A to 29F for opening and closing the electrolyte inlets 22A to 22F are detachably fitted into the electrolyte inlets 22A to 22F. The liquid plugs 29A to 29F are detachably fitted to the electrolyte inlets 22A to 22F by, for example, a screw mechanism.
[0021] The reflux holes 23A to 23F are holes for discharging the gas generated in the cell chambers 11A to 11F to the exhaust chambers 20A to 20F and refluxing the electrolyte liquefied in the exhaust chambers 20A to 20F to the cell chambers 11A to 11F. The reflux holes 23A to 23F are provided corresponding to the cell chambers 11A to 11F. That is, the reflux hole 23A corresponds to the cell chamber 11A, the reflux hole 23B corresponds to the cell chamber 11B, the reflux hole 23C corresponds to the cell chamber 11C, the reflux hole 23D corresponds to the cell chamber 11D, the reflux hole 23E corresponds to the cell chamber 11E, and the reflux hole 23F corresponds to the cell chamber 11F, and are respectively provided. The reflux holes 23A to 23F penetrate the lower lid portion 15 in the height direction H so as to communicate the cell chambers 11A to 11F with the exhaust chambers 20A to 20F.
[0022] The exhaust ports 24A and 24B are holes for discharging the gas generated in each cell chamber 11A to 11F to the outside of the lead storage battery 1 through each exhaust chamber 20A to 20F and the exhaust passage 21. The exhaust port 24A communicates with the exhaust chamber 20A located at one end in the first direction D1 and opens to the end face on one side in the first direction D1 of the upper lid portion 16. The exhaust port 24B communicates with the exhaust chamber 20F located at the other end in the first direction D1 and opens to the end face on the other side in the first direction D1 of the upper lid portion 16.
[0023] Here, the gas generated in each cell chamber 11A to 11F is discharged to each exhaust chamber 20A to 20F and the exhaust passage 21 through each reflux hole 23A to 23F, and is discharged to the outside of the lead storage battery 1 from the exhaust ports 24A and 24B. Further, the water vapor of the electrolyte discharged to each exhaust chamber 20A to 20F through each reflux hole 23A to 23F liquefies by colliding with the barrier walls 27A to 27F and is refluxed to each cell chamber 11A to 11F through each reflux hole 23A to 23F.
[0024] An indicator 30 for indicating the liquid level of the electrolyte in the battery case 2 is attached to the indicator attachment hole 25.
[0025] Figs. 8 and 9 are partial cross-sectional views taken along line VIII-VIII shown in Fig. 1. As shown in Figs. 1 to 4, 6 to 9, the first attachment portion 26A and the second attachment portion 26B are portions for attaching the handle 4 in a direction intersecting the first direction D1 in plan view. The first attachment portion 26A and the second attachment portion 26B face each other in the second direction D2 which is a direction orthogonal to the first direction D1 in plan view. The first attachment portion 26A is formed at the central portion in the first direction D1 of the end portion of the first raised portion 14A on the side opposite to the second raised portion 14B. The second attachment portion 26B is formed at the central portion in the first direction D1 of the end portion of the second raised portion 14B on the side opposite to the first raised portion 14A. For this reason, the first attachment portion 26A and the second attachment portion 26B are located at the central portion in the first direction D1 and face each other in the second direction D2. The top surface of the first raised portion 14A is referred to as the first top surface 14Aa, the side surface of the first raised portion 14A on the side opposite to the second raised portion 14B is referred to as the first side surface 14Ab, the top surface of the second raised portion 14B is referred to as the second top surface 14Ba, and the side surface of the second raised portion 14B on the side opposite to the first raised portion 14A is referred to as the second side surface 14Bb.
[0026] The first attachment portion 26A has a first accommodation recess 26Aa that is recessed in the second direction D2 from the first side surface 14Ab, and a first slit portion 26Ab that extends in the height direction H from the first accommodation recess 26Aa and reaches the first top surface 14Aa. The first accommodation recess 26Aa is a space that is narrow in the height direction H and extends long in the first direction D1. The first slit portion 26Ab is a space that is narrow in the second direction D2 and extends long in the first direction D1. The length of the first slit portion 26Ab in the first direction D1 is shorter than the length of the first accommodation recess 26Aa in the first direction D1. Also, the length of the first slit portion 26Ab in the second direction D2 is narrower than the length of the first accommodation recess 26Aa in the height direction H. The bottom surface of the first accommodation recess 26Aa is inclined downward toward the first side surface 14Ab, and support ribs 26Ac, 26Ac that extend in the second direction D2 and have a horizontal upper surface are provided on the bottom surface of the first accommodation recess 26Aa. The portion between the first slit portion 26Ab and the first side surface 14Ab is referred to as a first retaining portion 26Ad. The central portion of the first retaining portion 26Ad in the first direction D1 is notched. This notch in the first retaining portion 26Ad is referred to as a first notch 26Ae. The first slit portion 26Ab and the first accommodation recess 26Aa communicate with the outside of the lid 3 through the first notch 26Ae.
[0027] The second attachment portion 26B has a second accommodation recess 26Ba that is recessed in the second direction D2 from the second side surface 14Bb, and a second slit portion 26Bb that extends in the height direction H from the second accommodation recess 26Ba and reaches the second top surface 14Ba. The second accommodation recess 26Ba is a space that is narrow in the height direction H and extends long in the first direction D1. The second slit portion 26Bb is a space that is narrow in the second direction D2 and extends long in the first direction D1. The length of the second slit portion 26Bb in the first direction D1 is shorter than the length of the second accommodation recess 26Ba in the first direction D1. Also, the length of the second slit portion 26Bb in the second direction D2 is narrower than the length of the second accommodation recess 26Ba in the height direction H. The bottom surface of the second accommodation recess 26Ba is inclined downward toward the second side surface 14Bb, and support ribs 26Bc, 26Bc that extend in the second direction D2 and have a horizontal upper surface are provided on the bottom surface of the second accommodation recess 26Ba. The portion between the second slit portion 26Bb and the second side surface 14Bb is referred to as a second retaining portion 26Bd. The central portion of the second retaining portion 26Bd in the first direction D1 is notched. This notch in the second retaining portion 26Bd is referred to as a second notch 26Be. The second slit portion 26Bb and the second accommodation recess 26Ba communicate with the outside of the lid 3 through the second notch 26Be.
[0028] FIG. 10 is a side view of the handle. FIG. 11 is a plan view of the handle. As shown in FIGS. 1 to 4, 8 to 11, the handle 4 is attached to the lid 3 for carrying the lead storage battery 1. The handle 4 has a band portion 41, a first latching portion 42A, and a second latching portion 42B.
[0029] The band portion 41 is formed in a strip shape. The width direction of the band portion 41 is referred to as the width direction W, and the thickness direction of the band portion 41 is referred to as the thickness direction T. The width of the band portion 41 (the length in the width direction W of the band portion 41) is narrower than the length of the first slit portion 26Ab and the second slit portion 26Bb in the first direction D1. The thickness of the band portion 41 (the length in the thickness direction T of the band portion 41) is thinner than the length of the first slit portion 26Ab and the second slit portion 26Bb in the second direction D2. Also, the thickness of the band portion 41 (the length in the thickness direction T of the band portion 41) is thinner than the length of the first notch 26Ae and the second notch 26Be in the second direction D2. The length of the band portion 41 is longer than the length in the second direction D2 from the first attachment portion 26A to the second attachment portion 26B.
[0030] The first latching portion 42A is provided at the tip of one side of the handle 4 by being connected to the tip of one side of the band portion 41. The second latching portion 42B is provided at the tip of the other side of the handle 4 by being connected to the tip of the other side of the band portion 41. The first latching portion 42A and the second latching portion 42B may be detachably connected to the band portion 41, or may be non-detachably connected to the band portion 41. When the first latching portion 42A and the second latching portion 42B are non-detachably connected to the band portion 41, the first latching portion 42A and the second latching portion 42B may be integrally formed (integrally molded) with the band portion 41, for example.
[0031] The width of the first latching portion 42A and the second latching portion 42B (the length in the width direction W of the first latching portion 42A and the second latching portion 42B) is wider than the width of the band portion 41. The thickness of the first latching portion 42A and the second latching portion 42B (the length in the thickness direction T of the first latching portion 42A and the second latching portion 42B) is thicker than the thickness of the band portion 41. In the present embodiment, the first latching portion 42A and the second latching portion 42B are formed in a cylindrical shape and are connected to the band portion 41 such that the central axis of the cylinder extends in the width direction W.
[0032] In the handle 4 configured as described above, the band portion 41 is inserted into the first accommodation recess 26Aa and the first slit portion 26Ab from the first notch 26Ae of the first retaining portion 26Ad, so that the first latching portion 42A is latched to the first retaining portion 26Ad (see Fig. 8). Further, the band portion 41 is inserted into the second accommodation recess 26Ba and the second slit portion 26Bb from the second notch 26Be of the second retaining portion 26Bd, so that the second latching portion 42B is latched to the second retaining portion 26Bd (see Fig. 9). Thereby, the handle 4 is attached to the lid 3. Note that the handle 4 can be removed from the lid 3 by pulling out the band portion 41 from the first notch 26Ae and the second notch 26Be.
[0033] The band portion 41 has a rigidity such that it can be in a loop shape curved upward from the first attachment portion 26A to the second attachment portion 26B. And between the first attachment portion 26A and the second attachment portion 26B of the lid 3, there is no recess for accommodating the band portion 41, and the band portion 41 is held in a loop shape curved upward from the first attachment portion 26A to the second attachment portion 26B. Also, the band portion 41 has a flexibility such that it can be deformed along the upper surface of the lid 3 by being pressed from above. From the viewpoint of realizing such rigidity and flexibility, the tensile strength of the band portion 41 is 500 N or more and 4000 N or less, preferably 800 N or more and 3000 N or less, more preferably 1000 N or more and 2500 N or less.
[0034] The band portion 41 may be a resin fiber. Examples of such resin fibers include nylon fiber, polyester fiber, acrylic fiber, polypropylene fiber, polyethylene fiber, and aramid fiber. Among these resin fibers, polypropylene fiber is preferable from the viewpoint of being lightweight and having excellent strength. These resin fibers may be, for example, in a plain weave, twill weave, or sheet weave to form the band portion 41.
[0035] At least a part of the liquid plugs 29A to 29F is provided at a position overlapping the handle 4 in a plan view. In the present embodiment, a part of the liquid plugs 29C and 29D is provided at a position overlapping the handle 4 in a plan view. Further, at least a part of the indicator 30 is provided at a position overlapping the handle 4 in a plan view. In the present embodiment, a part of the indicator 30 is provided at a position overlapping the handle 4 in a plan view.
[0036] Let the height of the handle 4, which has a loop shape curved upward from the first attachment portion 26A to the second attachment portion 26B, be height h1, the height of the liquid plugs 29A to 29F be height h2, and the height of the indicator 30 be height h3. The height h1 of the handle 4 is the maximum height of the band portion 41 with respect to the top surface of the lid 3 (the first top surface 14Aa of the first raised portion 14A and the second top surface 14Ba of the second raised portion 14B). The height h2 of the liquid plugs 29A to 29F is also the total length in the height direction H of the liquid plugs 29A to 29F and is also the maximum protruding height protruding from the upper surface of the lid 3 when removing from the lid 3. The height 32 of the indicator 30 is also the total length in the height direction H of the indicator 30 and is also the maximum protruding height protruding from the upper surface of the lid 3 when removing from the lid 3. In this case, the height h1 of the handle 4 is higher than the height h2 of the liquid plugs 29A to 29F and higher than the height h3 of the indicator 30.
[0037] Thus, in the lead storage battery 1 according to the present embodiment, by attaching the handle 4 to the first attachment portion 26A and the second attachment portion 26B of the lid 3, the handle 4 is attached in a direction intersecting the first direction D1 in a plan view. Therefore, the lid 3 can be shortened in the first direction D1 without being restricted by the first attachment portion 26A and the second attachment portion 26B. For this reason, the lead storage battery 1 can be miniaturized while attaching the handle 4 to the lid 3. This is particularly effective when mounting in the trunk room or the interior space of the vehicle.
[0038] In addition, in this lead-acid battery 1, since the ratio (d1 / d2) of the length d1 of the lower lid portion 15 in the first direction D1 to the width d2 of the lower lid portion 15 in the second direction D2 is 1.1 or less, even if the lid 3 is shortened in the first direction D1, it is easy to ensure the design freedom of the first attachment portion 26A and the second attachment portion 26B and the design freedom of the exhaust chambers 20A to 20F and the exhaust passage 21.
[0039] In addition, in this lead-acid battery 1, since the ratio (d1 / d2) of the length d1 of the lower lid portion 15 in the first direction D1 to the width d2 of the lower lid portion 15 in the second direction D2 is 0.9 or more, it becomes easy to ensure the size of the exhaust chambers 20A to 20F. For this reason, it is easy to miniaturize the lead-acid battery 1, and it is easy to ensure the design freedom of the first attachment portion 26A and the second attachment portion 26B and the design freedom of the exhaust chambers 20A to 20F and the exhaust passage 21.
[0040] In addition, in this lead-acid battery 1, at least a part of the liquid plugs 29A to 29F is provided at a position overlapping the handle 4 in plan view. However, since the height h1 of the handle 4 is higher than the height h2 of the liquid plugs 29A to 29F, it is possible to easily attach and detach the liquid plugs 29A to 29F even with the handle 4 attached during maintenance.
[0041] In addition, in this lead-acid battery 1, at least a part of the indicator 30 is provided at a position overlapping the handle 4 in plan view. However, since the height h1 of the handle 4 is higher than the height h3 of the indicator 30, it is possible to easily remove the indicator 30 even with the handle 4 attached during maintenance.
[0042] In addition, in this lead storage battery 1, since the tensile strength of the band portion 41 is 500 N or more and 4000 N or less, preferably 800 N or more and 3000 N or less, and more preferably 1000 N or more and 2500 N or less, the band portion 41 can be held in a loop shape curved upward from the first attachment portion 26A to the second attachment portion 26B, and can be deformed along the upper surface of the lid 3 by pressing from above. Thereby, the space above the lid 3 can be effectively utilized. For example, even when members such as stays are arranged above the lead storage battery 1, it is possible to suppress interference with these members.
[0043] In addition, in this lead storage battery 1, since no concave portion for accommodating the band portion 41 is formed between the first attachment portion 26A and the second attachment portion 26B of the lid 3, the degree of freedom in designing the exhaust chambers 20A to 20F and the exhaust passage 21 is improved.
[0044] In addition, in this lead storage battery 1, since the first notch 26Ae is formed in the first retaining portion 26Ad, the band portion 41 can be inserted into and removed from the first accommodation recess 26Aa and the first slit portion 26Ab by passing through the first notch 26Ae. Similarly, since the second notch 26Be is formed in the second retaining portion 26Bd, the band portion 41 can be inserted into and removed from the second accommodation recess 26Ba and the second slit portion 26Bb by passing through the second retaining portion 26Bd. Therefore, even if the first latching portion 42A and the second latching portion 42B are integrated with the band portion 41, the handle 4 can be attached to and detached from the lid 3. Thereby, for example, when the handle 4 deteriorates, the handle 4 can be replaced.
[0045] As described above, the embodiments of the present invention have been described, but the present invention is not limited to the above embodiments.
[0046] For example, in the above embodiment, the attachment portions are arranged to face each other in the second direction, and the latching portion is latched in the second direction. However, the attachment portions may be arranged at any position as long as the latching portion is latched in a direction intersecting the first direction in a plan view.
Explanation of Symbols
[0047] 1…Lead-acid battery, 2…Battery case, 3…Cover, 4…Handle, 11A~11F…Cell chambers, 12…Partition wall, 13…Cover part, 13a…Upper surface, 14…Raised part, 14A…First raised part, 14Aa…First top surface, 14Ab…First side surface, 14B…Second raised part, 14Ba…Second top surface, 14Bb…Second side surface, 15…Lower cover part, 16…Upper cover part, 17…Positive terminal, 18…Negative terminal, 20A~20F…Exhaust chambers, 21…Exhaust passage, 22A~22F…Electrolyte injection ports, 23A~23F…Return holes, 24A, 24B…Exhaust ports, 25…Indicator mounting hole, 26A…First mounting part, 26Aa…First receiving recess, 26Ab…First slit part, 26Ac…Support rib, 26Ad…First retaining part, 26Ae…First notch, 26B…Second mounting part, 26Ba…Second receiving recess, 26Bb…Second slit part, 26Bc…Support rib, 26Bd…Second retaining part, 26Be…Second notch, 27A~27F…Barrier walls, 28A~28F…Peripheral walls of injection ports, 29A~29F…Liquid plugs, 30…Indicator, 41…Band part, 42A…First latching part, 42B…Second latching part, D1…First direction, D2…Second direction, H…Height direction, T…Thickness direction, W…Width direction, d1…Length, d2…Width.
Claims
【Claim 1】 An electrolytic cell having a plurality of cell chambers arranged in a first direction, a lid attached to the upper part of the electrolytic cell, and a handle attached to the lid, and the lid has an attachment portion for attaching the handle in a direction intersecting the first direction in a plan view. A battery.
Citation Information
Patent Citations
Packaging box and battery packaged in the packaging box
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Lead acid battery
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