阅读说明：本技术 容器和可安装部件的组合体以及容器 (Container and mountable parts combination and container ) 是由 高桥勇太 于 2021-05-12 设计创作，主要内容包括：本发明涉及容器和可安装部件的组合体以及容器。具体地,提供了一种容器和可安装部件的组合体,该组合体能够确保可安装部件到容器的可安装性并且实现安装有可安装部件的容器的尺寸的减小。容器(20)包括：壁部,该壁部包括外表面(22)；和肋状的引导部(40),该引导部(40)从外表面(22)突出。可安装部件包括凸部(62),在可安装部件被安装到容器(20)的外表面(22)的状态中,该凸部(62)与容器(20)接合。引导部(40)包括定位部(52),该定位部(52)相对于外表面(22)确定凸部(62)的位置。(The invention relates to a combination of a container and a mountable part and a container. Specifically, a combination of a container and a mountable part is provided, which is capable of ensuring mountability of the mountable part to the container and achieving a reduction in size of the container to which the mountable part is mounted. The container (20) comprises: a wall portion comprising an outer surface (22); and a rib-shaped guide portion (40), the guide portion (40) protruding from the outer surface (22). The mountable part includes a projection (62), the projection (62) engaging the container (20) in a state in which the mountable part is mounted to the outer surface (22) of the container (20). The guide portion (40) includes a positioning portion (52), the positioning portion (52) determining a position of the protrusion (62) relative to the outer surface (22).)

1. In combination, a container and a mountable part which is mountable to the container, wherein

The container includes: a wall portion comprising an outer surface; and a rib-shaped guide portion protruding from the outer surface,

the mountable part includes a projection that engages with the container in a state in which the mountable part is mounted to the outer surface of the container, and

the guide portion includes a positioning portion that determines a position of the convex portion with respect to the outer surface.

2. The combination of a container and a mountable part according to claim 1, wherein

The guide portion extends at least in a vertical direction.

3. A container and mountable part combination according to claim 2, wherein

The guide portion includes the positioning portion at a lower end of the guide portion.

4. A combination of a container and a mountable part according to claim 2 or 3, wherein

The positioning portion is opened upward.

5. A combination of a container and a mountable part according to any one of claims 2 to 4, wherein

The guide portion includes: an upper guide extending in a vertical direction; and a lower guide portion extending in the vertical direction at a position displaced from a position of the upper guide portion.

6. A combination of a container and a mountable part according to claim 5, wherein

The guide portion includes a horizontal guide portion connected to a lower end of the upper guide portion and an upper end of the lower guide portion, and extending in a horizontal direction.

7. A combination of a container and a mountable part according to any one of claims 1 to 6, wherein

The projection has an outer diameter larger than an inner diameter of the positioning portion in a state where the attachable member is not attached to the container.

8. The combination of a container and a mountable part according to claim 7, wherein

The convex portion is elastically deformable, and

in a state where the mountable part is mounted to the container, the convex portion is compressed and deformed.

9. A combination of a container and a mountable part according to any one of claims 1 to 8, wherein

A battery pack formed by stacking a plurality of battery cells is accommodated in the container, and

the wall portion faces the battery pack in a stacking direction of the battery cells.

10. A container, comprising:

a wall portion comprising an outer surface; and

a rib-shaped guide portion protruding from the outer surface, wherein

A mountable part mountable to the container includes a projection that engages with the container in a state in which the mountable part is mounted to the outer surface of the container, and

the guide portion includes a positioning portion that determines a position of the convex portion with respect to the outer surface.

Technical Field

The present disclosure relates to a combination of a container and a mountable part and a container.

Background

For example, japanese patent laid-open No. 2014-019260 describes a technique of performing positioning using a positioning pin when a battery pack mounted on a vehicle is mounted to a vehicle body.

Disclosure of Invention

When a device that performs prescribed processing with respect to the battery, such as a battery Electronic Control Unit (ECU), is mounted to a container that houses the battery pack, the device can be moved from above to below and mounted such that an engagement portion on the device side engages with a positioning pin of the container.

A margin is set in the container so as to ensure mountability and quality of the device when the device is mounted to the container, and to ensure a clearance for coping with dimensional variation of each component and a clearance for mounting work. The margin causes an increase in the size of the container and complication of the structure.

The present disclosure proposes a combination of a container and a mountable part, which is capable of ensuring mountability of the mountable part to the container and achieving a reduction in size of the container to which the mountable part is mounted.

In accordance with the present disclosure, a combination of a container and a mountable component mountable to the container is presented. The container includes: a wall portion including an outer surface; and a rib-shaped guide portion protruding from the outer surface. The mountable part comprises a protrusion which engages with the container in a state in which the mountable part is mounted to the outer surface of the container. The guide portion includes a positioning portion that determines a position of the convex portion with respect to the outer surface.

According to this configuration, when the mountable member is mounted to the container, the mountable member can be relatively moved with respect to the container while the convex portion is moved along the guide portion, and therefore, mountability of the mountable member to the container is ensured. Since the container includes the guide portion that serves as a guide during installation of the mountable part, a gap for installation work can be omitted, which allows the size of the container to be reduced.

In the above-described combined body, the guide portion may extend at least in the vertical direction. In this case, the mountable member can be mounted to the container by moving the mountable member relative to the container in the vertical direction while moving the convex portion along the guide portion.

In the above-described combined body, the guide portion may include a positioning portion at a lower end of the guide portion. By moving the mountable member downward from above relative to the container while moving the projection along the guide portion, and then positioning the projection by the positioning portion, the mountable member can be mounted to the container at an appropriate position.

In the above-described combined body, the positioning portion may be opened upward. In this case, the projection can be reliably engaged with the positioning portion by the relative movement for moving the mountable member downward from above with respect to the container.

In the above combination, the guide part may include: an upper guide portion extending in a vertical direction; and a lower guide portion extending in a vertical direction at a position displaced from a position of the upper guide portion. It is possible to move the convex portion downward along the upper guide portion, and after the convex portion reaches the lower end of the upper guide portion, to shift the position of the convex portion, and to move the convex portion downward along the lower guide portion. Thus, the flexibility of the arrangement of the mountable parts with respect to the container can be increased.

In the above-described combined body, the guide part may include a horizontal guide part connected to a lower end of the upper guide part and an upper end of the lower guide part and extending in a horizontal direction. Since the convex portion can be moved along the horizontal guide portion when the position of the convex portion is shifted from the upper guide portion to the lower guide portion, mountability of the mountable part to the container can be further improved.

In the above-described combined product, the projection may have an outer diameter larger than an inner diameter of the positioning portion in a state where the mountable member is not mounted to the container. Therefore, when the mountable part is mounted to the container, the mountable part can be positioned without rattling, which allows the size of the container to be further reduced.

In the above combination, the projection may be elastically deformable, and the projection may be compressed and deformed in a state where the mountable part is mounted to the container. Since the convex portion is elastically deformable, mountability of the mountable part to the container can be improved. Since the convex portion is compressed and deformed in a state where the mountable member is mounted to the container, the mountable member is supported due to a frictional force generated between the guide portion and the convex portion, and therefore, the mountable member is more stably supported. Therefore, the vibration input into the mountable part can be reduced, and the reliability of the mountable part can be improved.

In the above-described combination, a battery pack formed by stacking a plurality of battery cells may be accommodated in the container, and the wall portion may face the battery pack in the stacking direction of the battery cells. In the wall portion of the container, the outer surface conventionally having the reinforcing ribs for ensuring the strength is provided with the guide portion, and therefore, there is no need to add a new configuration for guiding the projection during the mounting of the mountable part to the container. The container is produced by die casting, and therefore, the container, the reinforcing ribs and the guide portions can be integrally molded at the same time. Therefore, the container including the guide portion can be realized without causing an increase in the mass and an increase in the cost of the container.

According to the present disclosure, there is provided a container comprising: a wall portion including an outer surface; and a rib-shaped guide portion protruding from the outer surface. The mountable part mountable to the container comprises a protrusion which engages with the container in a state in which the mountable part is mounted to an outer surface of the container. The guide portion includes a positioning portion that determines a position of the convex portion with respect to the outer surface.

According to this configuration, when the mountable member is mounted to the container, the mountable member can be relatively moved with respect to the container while the convex portion is moved along the guide portion, and therefore, mountability of the mountable member to the container is ensured. Since the container includes the guide portion that serves as a guide during installation of the mountable part, a gap for installation work can be omitted, which allows the size of the container to be reduced.

The foregoing and other objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure when considered in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a side view of a container according to a first embodiment.

Fig. 2 is a partial cross-sectional view of the container taken along line II-II shown in fig. 1.

FIG. 3 is a side view of a container and a mountable component mounted to the container.

Fig. 4 is a partial cross-sectional view of the container and mountable parts taken along line IV-IV shown in fig. 3.

Fig. 5 is a schematic diagram showing a first step of mounting a mountable part to a container.

FIG. 6 is a schematic diagram showing a second step of mounting the mountable component to the container.

FIG. 7 is a schematic diagram showing a third step of mounting the mountable component to the container.

Fig. 8 is a schematic diagram showing a first step of mounting a mountable part to a container according to a second embodiment.

Fig. 9 is a schematic view showing a second step of mounting a mountable part to a container according to a second embodiment.

Fig. 10 is a schematic view showing a third step of mounting a mountable part to a container according to the second embodiment.

Detailed Description

Embodiments will be described hereinafter with reference to the accompanying drawings. In the following description, like parts are denoted by like reference numerals. Their names and functions are also the same. Therefore, detailed description about them will not be repeated.

[ first embodiment ]

(Container 20)

Fig. 1 is a side view of a container 20 according to a first embodiment. Fig. 2 is a partial cross-sectional view of the container 20 taken along line II-II shown in fig. 1. Fig. 1 shows the container 20 as viewed from the direction of arrow I shown in fig. 2. As shown in fig. 1 and 2, the container 20 includes an opening 26 and a bottom 28. The container 20 has a bottomed box shape, an upper portion of which is opened. The interior of the container 20 is hollow. In this specification, a direction from the opening 26 toward the bottom 28 of the container 20 (vertical direction in fig. 1 and 2) is referred to as a vertical direction, and a direction orthogonal to the vertical direction is referred to as a horizontal direction.

The container 20 has a substantially rectangular shape in plan view, and includes a wall portion 21 forming one side of the rectangular shape. The wall portion 21 comprises an outer surface 22 facing the outside of the container 20 and an inner surface 23 facing the inside of the container 20 and opposite the outer surface 22. At the upper end of the wall portion 21 and the other wall portions forming the other sides of the rectangular shape, the container 20 comprises a rim 24 protruding outwards from the container 20.

The battery pack 10 is accommodated in the container 20. The battery pack 10 is formed by stacking a plurality of battery cells 1. Each of the battery cells 1 includes a battery element, a housing accommodating the battery element, and an external terminal disposed outside the housing. The end plates 2 are disposed at both ends in the stacking direction with respect to the stacked body of the battery cells 1. A restraining load that restrains the battery cells 1 by sandwiching the battery cells 1 from both sides in the stacking direction is applied to the end plates 2 by a not-shown restraining member.

The wall portion 21 faces the battery pack 10 in the stacking direction of the battery cells 1 (the lateral direction in fig. 2). The end plate 2 is in contact with the inner surface 23 of the wall 21 of the container 20. The end plate 2 applies the reaction force of the above-described restraining load to the wall portion 21 of the container 20.

Container 20 includes reinforcing ribs 30 on outer surface 22 of wall portion 21 to increase the strength of wall portion 21, which wall portion 21 receives a reaction force from end plate 2 that restrains the load. Reinforcing ribs 30 have a shape that projects perpendicularly from outer surface 22. Reinforcing ribs 30 include a plurality of upper ribs 32, horizontal ribs 34, and a plurality of lower ribs 36, the number of lower ribs 36 being greater than the number of upper ribs 32.

The upper rib 32 extends in the vertical direction. The horizontal ribs 34 extend in the horizontal direction. The lower rib 36 extends in the vertical direction. The lower end of each of the plurality of upper ribs 32 arranged in parallel is connected to the horizontal rib 34. The upper rib 32 includes an upper end connected to the rim 24 and a lower end connected to the horizontal rib 34. An upper end of each of a plurality of lower ribs 36 arranged in parallel is connected to the horizontal rib 34. The lower rib 36 includes an upper end connected to the horizontal rib 34.

The container 20 also includes a guide 40 on the outer surface 22. The guide portion 40 has a rib shape perpendicularly protruding from the outer surface 22. The guide portion 40 shown in fig. 1 includes an upper guide portion 42, a horizontal guide portion 44, a lower guide portion 46, a lower end portion 48, and a hook forming portion 50. The upper guide portion 42 extends in the vertical direction. The lower guide portion 46 extends in the vertical direction at a position displaced from the position of the upper guide portion 42. The horizontal guide portion 44 is connected to a lower end of the upper guide portion 42 and an upper end of the lower guide portion 46, and extends in a horizontal direction. The upper guide 42 includes an upper end connected to the edge 24 and a lower end connected to the horizontal guide 44. The lower guide portion 46 includes an upper end connected to the horizontal guide portion 44.

The lower end 48 is connected to a lower end of the lower guide portion 46, and extends in the horizontal direction. The hook forming part 50 is connected to the other end of the lower end part 48 opposite to the end connected to the lower end part 48 of the lower guide part 46, and extends in the vertical direction. The hook forming portion 50 extends upward from the lower end portion 48. The guide portion 40 has a hook shape at a lower end. As shown in fig. 1, a positioning portion 52 surrounded by the lower guide portion 46, the lower end portion 48, and the hook forming portion 50 is provided at the lower end of the guide portion 40. The positioning portion 52 is opened upward.

Immediately adjacent to the portion connected to the upper end of the upper guide 42, the edge 24 is provided with a cutout 24C formed by removing a portion of the edge 24. Immediately adjacent to the portion connected to the lower end of the upper guide 42, the horizontal rib 34 is provided with a notch 34C formed by removing a portion of the horizontal rib 34. Among the plurality of lower ribs 36, a lower rib 36A positioned adjacent to the guide portion 40 and below the notches 24C and 34C is provided with a notch 36C formed by removing a portion of the upper end of the lower rib 36A. Unlike the other lower ribs 36, the upper end of the lower rib 36A is not connected to the horizontal rib 34.

(combination of Container 20 and mountable part 60)

Fig. 3 is a side view of the container 20 and the mountable part 60 mounted to the container 20. Fig. 4 is a partial cross-sectional view of the container 20 and mountable part 60 taken along line IV-IV shown in fig. 3. FIG. 3 illustrates a partial cross-sectional view of the container 20 and the mountable part 60 taken along the line III-IIII shown in FIG. 4. The mountable part 60 is mounted to the outer surface 22 of the container 20. The mountable part 60 is, for example, a battery ECU that executes prescribed processing regarding the battery pack 10.

The mountable part 60 includes a projection 62. The projection 62 has a shape protruding from the main body portion of the attachable member 60. In a state where the mountable part 60 is mounted to the container 20, the projection 62 faces the container 20. In a state where the mountable part 60 is mounted to the outer surface 22 of the container 20, the projection 62 engages with the container 20. Specifically, the convex portion 62 is accommodated in the positioning portion 52 at the lower end of the guide portion 40. Thus performing the positioning of the projection 62 relative to the outer surface 22.

The cover member 70 covers the mountable part 60. The cover member 70 prevents the mountable part 60 from being exposed, thereby inhibiting physical contact of another part with the mountable part 60. In addition, the cover member 70 secures a distance between the mountable part 60 and another peripheral part, and exists as a reflecting member, thereby reducing input of electromagnetic noise from the other part to the mountable part 60.

The mountable part 60 includes a connector 64. A portion of the cover member 70 corresponding to the connector 64 is provided with a hole penetrating the cover member 70. Through this hole, wiring work from the outside to the connector 64 is performed.

(method for assembling the mountable part 60 to the container 20)

A method for assembling the mountable part 60 to the container 20 will be described hereinafter. In the following figures, for simplicity, the main body portion of the mountable part 60 is not shown, and only the projection 62 of the mountable part 60 is shown to describe the relative movement of the projection 62 with respect to the container 20. The arrows in fig. 5 and subsequent figures indicate the direction of movement of the projection 62.

Fig. 5 is a schematic diagram showing a first step of mounting the mountable part 60 to the container 20. When the mountable part 60 is mounted to the container 20, the mountable part 60 moves downward from above relative to the container 20 so that the mountable part 60 becomes closer to the container 20 from above. As shown in fig. 5, the projection 62 moves downward to pass through the cutout 24C formed in the edge 24. The mountable member 60 is moved downward while keeping the convex portion 62 in contact with the guide portion 40, specifically, the upper guide portion 42 and moving the convex portion 62 along the upper guide portion 42.

Fig. 6 is a schematic diagram showing a second step of mounting the mountable part 60 to the container 20. The mountable member 60 is further moved downward while the holding projection 62 is in contact with the upper guide 42. When the convex portion 62 reaches the lower end of the upper guide portion 42, the convex portion 62 comes into contact with the horizontal guide portion 44, and the mountable member 60 moves in the horizontal direction while keeping the convex portion 62 in contact with the horizontal guide portion 44. Until the projection 62 comes into contact with the lower guide portion 46, the movement of the mountable member 60 is continued while the projection 62 is moved along the horizontal guide portion 44.

Fig. 7 is a schematic diagram showing a third step of mounting the mountable part 60 to the container 20. The mountable member 60 is further moved downward while the holding projection 62 is in contact with the lower guide 46. The mountable member 60 is moved downward until the projection 62 reaches the lower end of the lower guide 46 and comes into contact with the lower end 48. The convex portion 62 is surrounded by the lower guide portion 46, the lower end portion 48, and the hook forming portion 50. The boss 62 is received in the positioning portion 52. In this way, the determination of the position of the projection 62 with respect to the guide portion 40 is performed, and therefore, the determination of the position of the mountable member 60 with respect to the container 20 is performed. As a result, the mountable part 60 is mounted to the container 20.

(function and Effect)

Although there is a partial overlap with the foregoing description, the following will summarize the characteristic configurations and functions and effects of the container 20 and the mountable part 60 according to the embodiment.

As shown in fig. 1 and 2, the container 20 includes: a wall portion 21, the wall portion 21 including an outer surface 22; and a rib-shaped guide portion 40, the guide portion 40 protruding from the outer surface 22. As shown in fig. 3 and 4, the mountable part 60 includes a projection 62. In a state where the mountable part 60 is mounted to the outer surface 22 of the container 20, the projection 62 engages with the container 20. The guide portion 40 includes a locating portion 52, the locating portion 52 locating the boss 62 relative to the outer surface 22 of the container 20.

When the mountable member 60 is mounted to the container 20, it is possible to relatively move the mountable member 60 with respect to the container 20 while moving the projection 62 along the surface of the guide portion 40, and mount the mountable member 60 to the container 20 at a defined position where the projection 62 is positioned by the positioning portion 52. Thus, mountability of the mountable part 60 to the container 20 is ensured.

Since the container 20 includes the guide portion 40, the guide portion 40 serves as a guide for defining a path of the mountable member 60 during mounting of the mountable member 60, the mountable member 60 can be easily mounted to the container 20 without setting a gap in the container 20 for mounting work. A gap corresponding to a dimensional change of each of the container 20 and the mountable part 60 can be secured only for the container 20 to which the mountable part 60 is mounted, and therefore, a gap for mounting work can be omitted. Therefore, a reduction in the size of the container 20 can be achieved by reducing the size of the container 20, and mounting of the mountable part 60 to the container 20 in a space-saving manner can be achieved.

As shown in fig. 1 to 4, the guide portion 40 includes a portion extending in the vertical direction. This makes it possible to relatively move the mountable member 60 in the vertical direction with respect to the container 20 while moving the convex portion 62 along the guide portion 40, and mount the mountable member 60 to the container 20 at an appropriate position.

As shown in fig. 1 and 3, the guide portion 40 includes a positioning portion 52 at a lower end of the guide portion 40. By moving the mountable member 60 downward from above relative to the container 20 while moving the projection 62 along the guide portion 40, and then positioning the projection 62 by the positioning portion 52, the mountable member 60 can be mounted to the container 20 at an appropriate position. Since a part of the shape of the guide portion 40 has a function of finally determining the position of the mountable member 60 with respect to the container 20, positioning pins or the like for positioning the mountable member 60 are unnecessary, and therefore, the number of members in the container 20 and the mountable member 60 can be reduced.

As shown in fig. 1 and 3, the positioning portion 52 is opened upward. Therefore, the projection 62 can be reliably engaged with the positioning portion 52 with the relative movement of the mountable member 60 relative to the container 20 for moving the mountable member 60 downward from above relative to the container 20.

As shown in fig. 1 and 3, the guide portion 40 includes: an upper guide 42, the upper guide 42 extending in the vertical direction; and a lower guide portion 46, the lower guide portion 46 extending in the vertical direction at a position displaced from the position of the upper guide portion 42. During the relative movement for moving the mountable member 60 downward from above relative to the container 20, it is possible to move the convex portion 62 downward along the upper guide portion 42, and after the convex portion 62 reaches the lower end of the upper guide portion 42, to shift the position of the convex portion 62, and to move the convex portion 62 downward along the lower guide portion 46. Therefore, the flexibility of the arrangement of the mountable part 60 with respect to the container 20 can be increased. For example, the connector 64 shown in fig. 3 can be arranged closer to the cover member 70, and therefore, the operability of wiring to the connector 64 can be improved.

Immediately before the work for mounting the mountable part 60 to the container 20 is finished, the mountable part 60 is moved to become closer to the cover member 70. Therefore, interference between the mountable part 60 and the cover member 70 during the mounting work can be suppressed.

As shown in fig. 1 and 3, the guide portion 40 includes a horizontal guide portion 44 connected to a lower end of the upper guide portion 42 and an upper end of the lower guide portion 46, and extending in a horizontal direction. When the position of the convex portion 62 is shifted from the upper guide portion 42 to the lower guide portion 46, the convex portion 62 can be moved along the horizontal guide portion 44. Therefore, the mountability of the mountable part 60 to the container 20 can be further improved.

As shown in fig. 2, a battery pack 10 formed by stacking a plurality of battery cells 1 is accommodated in a container 20. The wall portion 21 of the container 20 having the guide portion 40 on the outer surface 22 thereof faces the battery pack 10 in the stacking direction of the battery cells 1.

In the wall portion of the container 20, the outer surface 22 including the reinforcing ribs 30 is provided with a guide portion 40 in order to obtain strength for restraining the battery pack 10. On outer surface 22, which conventionally includes reinforcing ribs 30 to ensure rigidity of container 20, guide portions 40 defining a path when mountable member 60 is mounted to container 20 can be formed by changing the shape of a portion of reinforcing ribs 30. Therefore, it is not necessary to add a new configuration for guiding the projection 62 during the mounting of the mountable part 60 to the container 20.

The container 20 is produced by die casting, which results in a high flexibility in the shape of the container 20. The container 20, the reinforcing ribs 30 and the guide portions 40 can be integrally molded at the same time by die casting. More specifically, a mold having a shape corresponding to the reinforcing ribs 30 and the guide portions 40 is prepared, and die cutting is performed in a direction perpendicular to the outer surface 22. Thus, the outer surface 22 including the reinforcing ribs 30 and the guide portions 40 having arbitrary shapes can be molded. Therefore, the container 20 including the guide portion 40 can be realized without causing an increase in mass and an increase in cost of the container 20.

[ second embodiment ]

Fig. 8 is a schematic diagram showing a first step of mounting the mountable part 60 to the container 20 according to the second embodiment. The container 20 according to the second embodiment differs from the container 20 according to the first embodiment in the arrangement of the reinforcing ribs 30. Specifically, in the reinforcing rib 30 according to the second embodiment, the lower rib 36 is not arranged below the notch 34C formed in the horizontal rib 34. The position of the lower rib 36 provided with the notch 36C in fig. 1 is shifted in the left direction in fig. 8, and the upper end of the lower rib 36 is connected to the horizontal rib 34 without the notch 36C.

In addition, the container 20 according to the second embodiment is different from the container 20 according to the first embodiment in the shape of the guide portion 40. Specifically, the guide portion 40 according to the second embodiment includes the return portion 54. The return portion 54 is connected to an upper end of the hook forming portion 50, and extends from the hook forming portion 50 toward the lower guide portion 46. In the guide portion 40 according to the second embodiment, the positioning portion 52 is opened upward, similarly to the first embodiment. However, the return portion 54 is provided, and therefore, the opening of the positioning portion 52 is narrower than in the first embodiment.

In addition, the mountable part 60 according to the second embodiment differs from the mountable part 60 according to the first embodiment in the shape of the projection 62. Specifically, the convex portion 62 according to the second embodiment includes a main portion 66, a sub portion 68, and a coupling portion 69. The convex portion 62 has an overall shape similar to the capital letter of the letter "J" of the alphabet. For example, the convex portion 62 can be formed by bending and deforming the plate member.

The main portion 66 is secured to the main body portion of the mountable component 60. The coupling portion 69 has a shape that couples the main portion 66 to the sub portion 68. The secondary portion 68 is not directly mounted to the main body portion of the mountable member 60. The sub portion 68 is mounted to the main body portion of the mountable part 60 with the coupling portion 69 and the main portion 66 interposed. The secondary portion 68 is configured to be relatively movable with respect to the primary portion 66 and the main body portion of the mountable member 60. As a result, the convex portion 62 is elastically deformable. The boss 62 has a horizontal spring structure.

In a state where the mountable member 60 is not mounted to the container 20, the convex portion 62 has an outer diameter larger than an inner diameter of the positioning portion 52. For example, the shapes of the projection 62 and the positioning portion 52 are set, for example, such that the space between the surface of the main portion 66 that does not face the sub portion 68 and the surface of the sub portion 68 that does not face the main portion 66 is larger than the space between the surface of the lower guide portion 46 that faces the hook forming portion 50 and the surface of the hook forming portion 50 that faces the lower guide portion 46.

Similar to the first embodiment, when the mountable part 60 is mounted to the container 20, the mountable part 60 is moved from above to below with respect to the container 20 so that the mountable part 60 becomes closer to the container 20 from above. As shown in fig. 8, the projection 62 is moved downward to pass through the cutout 24C formed in the edge 24. The mountable member 60 is moved downward while moving the projection 62, and specifically the main portion 66, along the upper guide 42 along the guide 40.

Fig. 9 is a schematic view showing a second step of mounting the mountable part 60 to the container 20 according to the second embodiment. The main portion 66 moves downward along the upper guide portion 42, and when the main portion 66 reaches the lower end of the upper guide portion 42, the convex portion 62 moves in the horizontal direction along the horizontal guide portion 44. The movement of the projection 62 along the horizontal guide 44 is continued until the main portion 66 comes into contact with the lower guide 46. Then, the convex portion 62 is moved downward while moving the main portion 66 along the lower guide portion 46.

When the projection 62 passes through the upward opening of the positioning portion 52, the projection 62 is elastically deformed. The guide portion 40 includes the return portion 54, and when the projection 62 passes through the narrow opening between the lower guide portion 46 and the return portion 54, the projection 62 is elastically deformed so that the sub portion 68 becomes closer to the main portion 66. Since the projection 62 is elastically deformed to reduce the space between the main portion 66 and the sub portion 68, the projection 62 can pass through the opening between the lower guide portion 46 and the return portion 54.

Fig. 10 is a schematic view showing a third step of mounting the mountable part 60 to the container 20 according to the second embodiment. The convex portion 62 moves further downward along the lower guide portion 46 to pass through the opening between the lower guide portion 46 and the return portion 54. The boss 62 is received in the positioning portion 52. In this way, the determination of the position of the projection 62 with respect to the container 20 is performed, and therefore, the determination of the position of the mountable part 60 with respect to the container 20 is performed. As a result, the mountable part 60 is mounted to the container 20.

The shapes of the convex portion 62 and the positioning portion 52 are set such that the outer diameter of the convex portion 62 is larger than the inner diameter of the positioning portion 52 in a no-load state. Thus, the convex portion 62 accommodated in the positioning portion 52 is compressed and deformed. The convex portion 62 accommodated in the positioning portion 52 applies stress to the guide portion 40, so that the main portion 66 presses the lower guide portion 46, and the sub portion 68 presses the hook forming portion 50.

In the mountable part 60 according to the second embodiment described above, in a state where the mountable part 60 is not mounted to the container 20 and thus no load is applied to the boss 62, the boss 62 has an outer diameter larger than the inner diameter of the positioning portion 52. In a state where the projection 62 is accommodated in the positioning portion 52, the lower guide portion 46 is in surface contact with the main portion 66 of the projection 62, and the hook forming portion 50 is in surface contact with the sub portion 68. Therefore, when the mountable part 60 is mounted to the container 20, the mountable part 60 can be positioned without rattling, which allows the size of the container 20 to be further reduced.

Since the convex portion 62 is elastically deformable, the convex portion 62 having a span length larger than that of the positioning portion 52 can be easily accommodated in the positioning portion 52. Therefore, mountability of the mountable part 60 to the container 20 can be improved.

Since the guide portion 40 includes the return portion 54 and the upward opening of the positioning portion 52 is narrowed, after passing through the opening, the elastic deformation of the convex portion 62 during passing through the opening is partially restored. This deformation of the projection 62 allows the operator to feel that the projection 62 is fitted when the projection 62 passes through the opening. Therefore, the mountability of the mountable part 60 to the container 20 can be further improved.

In a state where the mountable member 60 is mounted to the container 20 and thus in a state where the projection 62 is accommodated in the positioning portion 52, the projection 62 is compressed and deformed. The mountable part 60 is supported due to the frictional force generated between the guide portion 40 and the convex portion 62. The number of support points for the mountable part 60 increases, and therefore, the mountable part 60 is more stably supported. Therefore, the input of vibration into the mountable part 60 can be reduced, and the reliability of the mountable part 60 can be improved.

The foregoing description of the embodiment has shown an example in which the guide portion 40 includes the upper guide portion 42 and the lower guide portion 46 extending in the vertical direction and the horizontal guide portion 44 extending in the horizontal direction. However, the guide portion 40 may have any shape as long as it can define the path of the mountable member 60 during mounting of the mountable member 60 to the container 20.

Embodiments have shown examples where reinforcing ribs 30 are provided with cuts along the path of projection 62 during installation of mountable component 60 to container 20. However, reinforcing ribs 30 may have any shape so long as reinforcing ribs 30 do not interfere with protrusions 62 and do not block relative movement of mountable member 60 with respect to container 20. For example, the position of a portion of the reinforcing ribs 30 may be shifted. Reinforcing rib 30 may be provided with a step formed by reducing the height at which a portion of reinforcing rib 30 protrudes from outer surface 22.

Although the embodiment has shown an example in which the container 20 is a case that houses the battery pack 10, the present disclosure is not limited to this example. The idea of an embodiment is also applicable to any container and any mountable part that can be mounted to the container.

While embodiments of the present disclosure have been described, it is to be understood that the embodiments disclosed herein are illustrative and not restrictive in every respect. The scope of the present disclosure is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.