chassis

Abstract

To enable the connection strength of a wall body to be satisfactorily exhibited and suppress an increase in the burden of connecting work.SOLUTION: A housing (10) connects two side wall bodies (20) via a coupling (30). The side wall bodies include a joint face part (22) having a tip inward of the housing and a protruding face part (23) that protrudes from the tip of the joint face part, with the outer edge of a principal face part (21) defined as a base end. The coupling includes a first forming body (31) that runs along the rear face of the protruding face part, a pair of second forming bodies (32) which is formed toward the front from the left and right sides of the first forming body, and a pair of third forming bodies (33) which is provided to the pair of second forming bodies, respectively, holding the first forming body and the protruding face part therebetween. A gap larger than a dimension twice the thickness of the joint face part is formed between the tips of the pair of third forming bodies. The inner surface distance of the first forming body and the third forming bodies is set to be appropriately the same as the thickness of the protruding face part. The inner surface distance of the pair of second forming bodies is set to be appropriately the same as the lateral length of the protruding face part, in the state of being aligned in a row.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a housing formed by connecting walls. [Background technology]

[0002] A distribution board or the like equipped with a predetermined electrical device is configured with a box-shaped housing. In such a housing, a configuration in which two or more walls are arranged and connected on the same plane or in perpendicular directions is known. Such a configuration for connecting walls is disclosed in Patent Document 1.

[0003] In Patent Document 1, two wall bodies are connected via a sheath member. One side of the wall body is provided with a bent portion, and a locking edge portion is formed by bending the tip edge of the bent portion toward the wall body at an acute angle. The sheath member has a predetermined length and is formed with a cross section that is generally arrow-shaped. The sheath member has two parallel edge portions that protrude from a sheath portion having a generally triangular insertion hole, maintaining a gap between them.

[0004] In Patent Document 1, when two wall bodies are connected, the two bent portions are arranged so that the locking edges are back-to-back. In this state, the locking edges are inserted into the insertion holes of the sheath member, and the sheath member is attached across the two bent portions. In this way, the bent portions are sandwiched between the parallel edge portions to connect the two wall bodies, and the abutting state of the two bent portions is maintained. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-65068 Summary of the Invention [Problem to be solved by the invention]

[0006] In Patent Document 1, when the sheath member is attached, not only does the inner surface of the sheath come into contact with the locking edge, but the two parallel edge portions and the bent portion also come into surface contact and rub against each other, which increases the frictional resistance when attaching (inserting) the sheath member, and increases the workload of attaching the sheath member and ultimately connecting the two wall bodies.

[0007] Here, if the parallel edge portions are separated from the bent portion, the frictional resistance when attaching the sheath member can be reduced, but there is a problem in that the contact pressure that sandwiches the two parallel edge portions by the sheath member decreases, and the strength to connect the two wall bodies is insufficient. Thus, there is a trade-off between suppressing an increase in the workload and ensuring the connecting strength of the wall bodies, but the inventors have devised an invention that can achieve both of these effects simultaneously.

[0008] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a housing that can effectively demonstrate the connecting strength of two wall bodies and can suppress an increase in the burden of the connecting work. [Means for solving the problem]

[0009] A housing according to one aspect of the present invention is a housing that is configured by a plurality of wall bodies, and at least two adjacent wall bodies are connected via a connector, and the wall bodies include a main surface portion that forms the outer peripheral surface of the housing, a joint surface portion that has a base end on the outer edge side of the surface direction of the main surface portion and a tip end on the inside or outside of the housing, and a protruding surface portion that protrudes from the tip side of the joint surface portion in a direction facing the main surface portion, and the connector is configured to connect the joint surface portions of the two wall bodies together in a state where the joint surface portions of the two wall bodies are in contact with each other and the protruding surface portions of the two wall bodies are lined up, and a first forming body that is along the surface of the protruding surface portion on the side opposite to the main surface portion, and the first forming body a pair of second forming bodies formed on both sides of the protruding surface portion in the arrangement direction facing the main surface portion; and a pair of third forming bodies provided on the pair of second forming bodies, respectively, and sandwiching the first forming body and the protruding surface portion therebetween; a gap larger than twice the thickness of the joining surface portion is formed between the tips of the pair of third forming bodies; the distance between the inner surfaces of the first forming body and the third forming body is set to be approximately the same as the thickness of the protruding surface portion; the distance between the inner surfaces of the pair of second forming bodies is set to be approximately the same as the length in the arrangement direction of the protruding surface portion when the two are lined up; and the first forming body is a single, approximately flat, plate-like body The present invention is characterized in that it is formed by [Effects of the Invention]

[0010] According to the present invention, the pair of third forming bodies can be positioned away from the joint surfaces that overlap in the thickness direction. This prevents the third forming body from rubbing against the joint surfaces and experiencing frictional resistance when attaching the connector. This allows the connector to be attached with less force, reducing the workload involved in connecting the wall bodies. Furthermore, since the first and third forming bodies sandwich the protruding surface portions in the thickness direction, and the pair of second forming bodies sandwich the two protruding surface portions in the juxtaposition direction, relative displacement of the two wall bodies in two directions can be restricted. This allows the two joint surfaces to be in stable contact, thereby providing excellent connection strength for the two wall bodies. Thus, in the present invention, by configuring the connector to include the first to third forming bodies, it is possible to simultaneously achieve a trade-off between reducing the workload and providing excellent connection strength for the wall bodies. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 2 is a schematic perspective view of a housing according to the embodiment. [Figure 2] FIG. 2 is a schematic perspective view for explaining a connection structure of a wall body in the embodiment. [Figure 3] FIG. 3 is a plan view of FIG. 2. [Figure 4] 4A and 4B are schematic diagrams of two wall bodies according to the embodiment as viewed from the inside. [Figure 5] FIG. 5A is a diagram showing a model of the connector of the embodiment for comparison, and FIG. 5B is a diagram showing a model of the sheath member of Patent Document 1 for comparison. [Figure 6] 10 is a schematic plan view illustrating a connection structure of a wall body according to a modified example. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] A housing according to one embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The present invention is not limited to the following embodiment, and can be appropriately modified and implemented without departing from the spirit of the present invention. For the sake of convenience, some components may be omitted from the following figures. Furthermore, in the following description, unless otherwise specified, "upper," "lower," "left," "right," "front," and "rear" refer to the directions indicated by arrows in each figure. However, the orientation of each component is merely an example, and can be changed to any orientation.

[0013] FIG. 1 is a schematic perspective view of a housing according to an embodiment. The housing 10 shown in FIG. 1 has a predetermined storage space therein, and stores predetermined electrical equipment such as a distribution board, a control panel, and a circuit breaker (not shown) in the storage space. The housing 10 is formed by connecting a plurality of panel-shaped walls. More specifically, the housing 10 has an upper wall 11, a lower wall 12, and a plurality of side walls 20 provided between the upper wall 11 and the lower wall 12. In this embodiment, a plurality of side walls 20 (four in FIG. 1) are provided side by side on both the front and rear sides of the upper wall 11 and the lower wall 12. Each of the walls 11, 12, and 20 is not particularly limited, but can be formed from a metal plate such as a steel plate.

[0014] Next, the connection structure of two side wall bodies 20 adjacent in the left-right direction will be described. Here, as a representative example, the connection structure of the part surrounded by the two-dot chain line in Fig. 1 will be described with reference to Fig. 2 and Fig. 3. Fig. 2 is a schematic perspective view for explaining the connection structure of the walls in this embodiment. Fig. 3 is a plan view of Fig. 2.

[0015] The side wall 20 is formed by bending an end portion extending in the vertical direction into a substantially U-shape. The side wall 20 includes a main surface portion 21, a joint surface portion 22, and a protruding surface portion 23.

[0016] The main surface portion 21 is provided parallel to the vertical and horizontal directions and forms the outer peripheral surface of the housing 10 (see FIG. 1). The main surface portion 21 has a rectangular shape that is substantially the same as the planar shape of the side wall body 20, and has two long sides that extend in the vertical direction on both the left and right sides.

[0017] The joint surface portion 22 is formed to protrude rearward (inward of the housing 10) from the outer edge that forms the long side of the main surface portion 21. Therefore, the joint surface portion 22 has a base end on the outer edge side of the main surface portion 21 and a tip end on the inner side of the housing 10. The joint surface portion 22 is oriented in a direction that is approximately perpendicular to the main surface portion 21.

[0018] The protruding surface portion 23 protrudes from the tip side of the joining surface portion 22 in a direction facing the rear surface (inner surface) of the main surface portion 21. In other words, the protruding surface portion 23 is continuous with the tip of the joining surface portion 22 and is arranged at a predetermined distance behind the main surface portion 21. The protruding surface portion 23 has a base end on the tip side of the joining surface portion 22 and a tip on the opposite side of the base end in the left-right direction. The protruding surface portion 23 is oriented in a direction that is approximately perpendicular to the joining surface portion 22.

[0019] The two side walls 20 adjacent in the left-right direction are arranged so that their main surfaces 21 are flush with each other and their joint surfaces 22 are in contact with each other. In this state, the protruding surfaces 23 of the two side walls 20 are flush with each other so as to be in the same position in the front-to-rear direction, and are aligned in the left-to-right direction. In this state, a connector 30 is attached across the two side walls 20.

[0020] The connector 30 comprises a single first forming body 31, a pair of second forming bodies 32, and a pair of third forming bodies 33. Each of the forming bodies 31 to 33 constituting the connector 30 is formed as a substantially flat plate-like or strip-like body without a bent or curved shape. The connector 30 extends in the vertical direction (a predetermined linear direction) and is formed so that its cross-sectional shape is uniform in the extending direction. In this embodiment, the connector 30 has a rectangular shape whose width in the left-right direction is approximately twice its width in the front-to-back direction when viewed from above.

[0021] Connector 30 can be formed by, for example, cutting a long member formed by extrusion molding to a predetermined length, by injection molding, or by bending a single plate member. Connector 30 is made of a metal material such as aluminum, stainless steel, or spring steel, or an appropriate resin material, and is configured to be elastically deformable when an external force is intentionally applied.

[0022] When the connector 30 is attached to the side wall body 20, the first forming body 31 is arranged along the surface opposite to the main surface portion 21 of the two protruding surface portions 23 lined up on the left and right, that is, along the rear surface.

[0023] The pair of second forming bodies 32 are formed contiguously on both sides of the first forming body 31 in the left-right direction (the direction in which the protruding surface portions 23 are arranged). The pair of second forming bodies 32 are formed so as to extend from both left-right ends of the first forming body 31 toward the main surface portion 21, which is in the front. The second forming bodies 32 have base ends on both left-right ends of the first forming body 31 and have a tip in the front (toward the main surface portion 21). The angle between the second forming body 32 and the first forming body 31 is set to be approximately a right angle.

[0024] The third forming bodies 33 are connected to the respective tips of the pair of second forming bodies 32 and are provided in pairs on the left and right. The pair of third forming bodies 33 extend in directions approaching each other in the left-right direction and are disposed in front of the first forming body 31. The third forming body 33 has a base end on the tip side of the second forming body 32 and a tip on the side opposite the base end in the left-right direction. The angle between the third forming body 33 and the second forming body 32 is set to be approximately a right angle.

[0025] The front surface of the first forming body 31 and the rear surface of the third forming body 33 are opposed surfaces facing each other in the front-to-rear direction, and the distance D between these opposed surfaces is set to be approximately the same as the thickness t of the protruding surface portion 23 (see FIG. 3). This allows the first forming body 31 and the pair of third forming bodies 33 to sandwich the protruding surface portion 23 from the front-to-rear direction, and makes it possible to restrict the relative displacement of the two side wall bodies 20 in the front-to-rear direction.

[0026] Furthermore, the length L1 in the left-right direction (arrangement direction) of the two protruding surface portions 23 lined up in the left-right direction and the distance L2 between the inner surfaces of the pair of second forming bodies 32 are set to be approximately the same (see FIG. 3). This allows the pair of second forming bodies 32 to sandwich the protruding surface portion 23 from the left-right direction, and makes it possible to restrict the relative displacement of the two side wall bodies 20 in the left-right direction.

[0027] Here, a gap 35 is formed between the tips of the pair of third forming bodies 33. Two joining surface portions 22 that are in surface contact are arranged within the gap 35, and the tips of the third forming bodies 33 and the joining surface portions 22 are separated and not in contact with each other. Therefore, the width of the gap 35 in the left-right direction is formed to be larger than twice the thickness of the joining surface portions 22.

[0028] 4A and 4B are schematic diagrams of two wall bodies according to the embodiment, viewed from the inside. As shown in Fig. 4A and 4B, in the side wall body 20, the joint surface portion 22 and the protruding surface portion 23 extend along the entire outer edge of the long side of the main surface portion 21 in the up-down direction. In addition, the joint surface portions 22 of two side wall bodies 20 adjacent in the left-right direction are in contact with each other and are connected via a connector 30.

[0029] 4A, a connector 30 is provided as a separate element at each end of the joining surface portion 22 and the protruding surface portion 23 in the vertical direction (the direction in which the joining surface portion 22 and the protruding surface portion 23 extend). Also in the same figure, a connector 30 separate from the connectors 30 at each end is provided at an intermediate portion in the vertical direction of the joining surface portion 22 and the protruding surface portion 23, so that a total of three connectors 30 are provided between two adjacent side wall bodies 20. In this way, two side wall bodies 20 to be connected can be connected via a plurality of connectors 30.

[0030] The use of three connectors 30 as shown in Figure 4A is one example and may be modified. For example, the connector 30 at the vertical middle portion may be omitted and only two connectors 30 may be provided at both vertical ends. Furthermore, in addition to the two connectors 30 at both vertical ends, multiple connectors 30 may be provided at predetermined intervals, resulting in a total of four or more connectors 30. Alternatively, as shown in Figure 4B, connectors 30 may be provided across substantially the entire vertical length of the joint surface portion 22 and the protruding surface portion 23. The vertical length, attachment position, and number of connectors 30 may be modified as desired depending on various conditions, such as the size, weight, thickness, etc. of the side wall 20, as well as the intended use of the housing 10.

[0031] Next, a description will be given below of a connecting method for connecting two adjacent side wall bodies 20 with the connector 30. First, as shown in Figures 2 and 3, the protruding surface portions 23 of the two side wall bodies 20 are aligned in the front-to-rear direction, and the joining surface portions 22 are arranged so as to be in surface contact with each other. This results in the two protruding surface portions 23 being lined up side by side, and in this state, the two lined up protruding surface portions 23 are inserted into the space surrounded by the forming bodies 31 to 33 of the connector 30.

[0032] At this time, the tip of the protruding surface portion 23 rubs against the inner surface of the second forming body 32, and both the front and rear surfaces of the protruding surface portion 23 rub against the inner surfaces of the first forming body 31 and the third forming body 33, resulting in frictional resistance as the connector 30 is inserted. During such insertion, the pair of third forming bodies 33 are spaced apart from the joining surface portion 22, so it is possible to avoid frictional resistance caused by the third forming bodies 33 rubbing against the joining surface portion 22. This makes it possible to attach the connector 30 by reducing the operating force intentionally applied when inserting the protruding surface portion 23 into the connector 30, and it is possible to prevent an increase in the workload when connecting the side wall bodies 20.

[0033] As described above, according to the present embodiment, the connector 30 can be attached across two adjacent side wall bodies 20 to connect them while suppressing an increase in the workload as described above. By attaching the connector 30, the first and third forming bodies 31 and 33 sandwich the protruding surface portion 23 in the front-to-rear direction (thickness direction), thereby restricting relative displacement of the two side wall bodies 20 in the front-to-rear direction. Furthermore, the pair of second forming bodies 32 can sandwich the protruding surface portion 23 in the left-to-right direction, thereby restricting relative displacement of the two side wall bodies 20 in the left-to-right direction. By restricting relative displacement in two-dimensional directions parallel to the horizontal direction in this way, the two joining surfaces 22 can be stably and firmly maintained in contact with each other, thereby achieving excellent connection strength between the two side wall bodies 20.

[0034] Therefore, according to this embodiment, by configuring the connector 30 as described above, it is possible to simultaneously reduce the workload involved in attaching the connector 30, which is a trade-off, and to ensure the connecting strength of the side wall body 20.

[0035] Furthermore, because the connector 30 has a predetermined length in the vertical direction, it is possible to ensure a wide range in the vertical direction in which the connector 30 can exert its effect of restricting the relative displacement of the two side wall bodies 20. This makes it possible to make the contact between the two joining surfaces 22 stronger, and to better maintain the connection strength between the two side wall bodies 20.

[0036] Furthermore, since the protruding surface portion 23 is oriented in a direction that is approximately perpendicular to the joining surface portion 22, the two protruding surface portions 23 can be aligned on the same plane, which facilitates the operation of inserting the protruding surface portion 23 into the connecting device 30.

[0037] In Patent Document 1, the sheath member is formed in a generally arrow-shaped cross section, resulting in five bending positions. On the other hand, connector 30 of the present embodiment has four bending positions: between first forming body 31 and the pair of second forming bodies 32, and between the pair of second forming bodies 32 and the pair of third forming bodies 33. This simplifies the shape and structure and facilitates processing.

[0038] Furthermore, the angle between the second forming body 32 and the first forming body 31 is set to a substantially right angle, and the angle between the third forming body 33 and the second forming body 32 is also set to a substantially right angle, so that the entire connector 30 can be formed into a rectangular shape when viewed from above. This eliminates the portion of the connector 30 that protrudes forward from the third forming body 33, thereby reducing the front-to-rear width and the front-to-rear length of the joint surface portion 22. As a result, the amount of protrusion of the joint surface portion 22, the protruding surface portion 23, and the connector 30 from the rear surface of the main surface portion 21 can be reduced, and the storage space within the housing 10 can be expanded.

[0039] Furthermore, to compare the strength of the connector 30 of the present embodiment with that of the sheath member of Patent Document 1, a study was conducted using the models shown in Figures 5A and 5B. Figure 5A is a diagram of a comparative model of the connector of the embodiment, and Figure 5B is a diagram of a comparative model of the sheath member of Patent Document 1. Here, the rigidity of the rectangular unit portion U1 formed by the connector 30 and the protruding surface portion 23 in the embodiment was studied, and the rigidity of the triangular unit portion U2 formed by the arrow shape in the sheath member of Patent Document 1 was also studied.

[0040] As shown in FIG. 5A, when the left-right width of the unit part U1 of the embodiment is B and the front-rear width is H, the unit part U1 has a rectangular shape (the left-right width B is the longitudinal direction), so the second moment of area about the left-right axis of the unit part U1 is BH 3On the other hand, as shown in FIG. 5B, when the left-right width of the unit part U2 of Patent Document 1 is B and the front-rear width is H, the unit part U2 has a triangular shape, so the moment of inertia of the area about the left-right axis of the unit part U2 is BH 3 / 36.

[0041] Here, if the second moment of area is I, the bending rigidity can be calculated by multiplying the second moment of area I by the Young's modulus E of the material. If the unit portions U1 and U2 have the same lateral width B and front-to-rear width H and are made of the same material, the ratio of the second moments of area indicates that the unit portion U1 has three times the bending rigidity of the unit portion U2. This makes it possible to increase the connection strength of the connector 30 in this embodiment. Furthermore, the unit portion U1 in FIG. 5A has a cross section with the lateral width B as its longitudinal direction, and therefore has a higher second moment of area about the lateral axis, thereby improving durability against loads in the front-to-rear direction, which is the main direction of vibration and shaking in the side wall body 20.

[0042] The present invention is not limited to the above-described embodiment, and various modifications can be made to the embodiment. In the above-described embodiment, the size, shape, orientation, etc. shown in the accompanying drawings are not limited to these, and can be modified as appropriate within the scope of the effects of the present invention. In addition, the present invention can be modified as appropriate without departing from the scope of the object of the present invention.

[0043] In the above embodiment, the angle between the protruding surface portion 23 and the joining surface portion 22 remains unchanged at approximately a right angle before and after the attachment of the connector 30, but this is not limited to this, and an example of the configuration is shown in Fig. 6. Fig. 6 is a schematic plan view for explaining the connection structure of the wall body according to a modified example.

[0044] In the configuration of Fig. 6, when the connector 30 is removed, the angle between the protruding surface portion 23 and the joining surface portion 22 is an obtuse angle. With this configuration, by attaching the connector 30 to the protruding surface portion 23, the protruding surface portion 23 elastically deforms in a direction that reduces the angle between the protruding surface portion 23 and the joining surface portion 22, and after attachment, the angle between the protruding surface portion 23 and the joining surface portion 22 becomes approximately a right angle, as shown in Fig. 3. This increases the pressure at which the first and third forming bodies 31 and 33 of the connector 30 contact the protruding surface portion 23, and more firmly restricts the relative displacement of the two side wall bodies 20 in the front-to-rear direction via the connector 30.

[0045] Furthermore, in the above embodiment, the method of attaching the two adjacent protruding surface portions 23 by inserting them into the connector 30 has been described, but the present invention is not limited to this. For example, the connector 30 may be attached by elastically deforming it so as to widen the gap 35 by intentionally applying an external force to the connector 30, and then receiving the protruding surface portion 23 into the connector 30 from a vertically intermediate portion of the protruding surface portion 23 through the gap 35. Attaching the connector 30 in this manner allows the connector 30 to be attached without friction between the protruding surface portion 23 and the inner surface of the connector 30, as in the embodiment.

[0046] Furthermore, the shape of the main surface portion 21 only needs to form the outer peripheral surface of the housing 10, and in addition to being formed flat, it may also be formed in a curved shape along an arc or a bent shape.

[0047] Furthermore, the walls connected by the connector 30 may be adjacent walls, such as the side wall 20 and the upper wall 11 or the lower wall 12. In this case, the angle between the main surface 21 and the joining surface 22 may be an acute angle, or the main surface 21 may have a bent shape.

[0048] Furthermore, in the above embodiment, the connector 30 is provided inside the housing 10, but the connector 30 may be provided outside the housing 10. In this configuration, the joint surface portion 22 has a tip end facing outward (forward) from the housing 10, and the protruding surface portion 23 protrudes from the tip side of the joint surface portion 22 in a direction facing the front surface (outer surface) of the main surface portion 21. [Explanation of symbols]

[0049] 10:Case 11: Upper wall (wall) 12: Lower wall (wall) 20: Side wall (wall) 21: Main Face 22: Joining the face 23: Emphasize the face 30: Connector 31: First Form 32: Second Form 33: Third Form

Claims

1. A housing configured by a plurality of walls, at least two adjacent walls being connected via a connector, the wall body includes a main surface portion that forms an outer peripheral surface of the housing, a joint surface portion that has a base end on the outer edge side of the main surface portion in a surface direction and a tip end on the inside or outside of the housing, and a protruding surface portion that protrudes from the tip side of the joint surface portion in a direction facing the main surface portion, When the joint surfaces of the two wall bodies are in contact with each other and the protruding surface portions of the wall bodies are aligned, the connector comprises: a first forming body along a surface opposite to the main surface portion of the protruding surface portion; a pair of second forming bodies formed on both sides of the first forming body in the alignment direction of the protruding surface portions and facing the main surface portion; and a pair of third forming bodies respectively provided on the pair of second forming bodies and sandwiching the first forming body and the protruding surface portion therebetween; a gap greater than twice the thickness of the joining surface portion is formed between the tips of the pair of third formation bodies; a distance between the inner surfaces of the first and third formation bodies is set to be substantially equal to a thickness of the protruding surface portion; a distance between the inner surfaces of the pair of second formation bodies is set to be substantially equal to a length in the arrangement direction of the two protruding surface portions when the two are arranged side by side; The housing is characterized in that the first formation body is formed by a single, substantially flat, plate-like body.

2. The housing according to claim 1 , wherein the protruding surface portion is oriented in a direction that is substantially perpendicular to the joining surface portion.

3. The housing according to claim 1, characterized in that, when the connector is removed, the protruding surface portion forms an obtuse angle with the joining surface portion, and when the connector is attached, the angle with the joining surface portion is approximately a right angle.

4. 4. The housing according to claim 1, wherein the angle between the first forming body and the second forming body is approximately a right angle, and the angle between the second forming body and the third forming body is approximately a right angle.

5. 5. The housing according to claim 1, wherein the connector is elastically deformable.

6. the joining surface portion and the protruding surface portion extend along an outer edge of the main surface portion in a surface direction, 6. The housing according to claim 1, wherein the connectors are provided as separate members on both ends of the joining surface portion and the protruding surface portion in the extending direction.

7. the joining surface portion and the protruding surface portion extend along an outer edge of the main surface portion in a surface direction, 6. The housing according to claim 1, wherein the connector is provided over substantially the entire extension direction of the joint surface portion and the protruding surface portion.

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