cabinet

Abstract

To reduce workload and achieve good connection strength of a wall body, while relaxing structural restrictions.SOLUTION: A housing (10) connects an adjacent first wall body (20A) and a second wall body (20B) through a connector (30). Each wall body has a joint surface (22) connected with an outer edge side of a main surface part (21) as a base end, and having a tip inside of the housing, and a locking surface (23) directed from a tip side of the joint surface to the main surface part. The connector has a body part (31) having a receiving port (37) capable of accepting from an extention direction middle part of the locking surface and a pair of guide parts (32) formed on a receiving port side of the body part, and sandwiches two locking surfaces arranged side by side in a direction in which two joint surfaces are pushing mutually through elasticity of the body part. In an approach operation making the body part closer to the joint surface, the pair of guide parts elastically change the body part by sliding in a direction opposite to the direction in which the two locking surfaces arranged side by side are pushing mutually, and guide a pass of the two locking surfaces arranged side by side to the receiving port.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a housing formed by connecting wall bodies.

Background Art

[0002] In a distribution board or the like provided with predetermined electrical equipment, it is configured to include a box-shaped housing. In such a housing, a configuration in which two or more wall bodies are arranged side by side and connected in the same plane or in a perpendicular direction is known. A configuration for connecting wall bodies in this way is disclosed in Patent Document 1.

[0003] Patent Document 1 connects two wall bodies via a sheath member. A bent portion is provided on one side of the wall body, and the leading edge of the bent portion is bent at an acute angle toward the wall body side to form a locking edge portion. The sheath member has a predetermined length and is formed in a substantially arrow-shaped cross section. The sheath member includes two parallel edge portions that project while maintaining a gap from a sheath portion having a substantially triangular insertion hole.

[0004] In Patent Document 1, when connecting two wall bodies, the two bent portions are arranged in contact with each other such that the locking edge portions face each other. In this state, the locking edge portions are inserted into the insertion hole of the sheath portion of the sheath member, and the sheath member is mounted across the two bent portions. Thereby, the bent portions are sandwiched by the parallel edge portions to connect the two wall bodies, and the state where the two bent portions are in contact with each other is maintained.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In Patent Document 1, the locking edge of the wall is inserted into the insertion hole of the sheath from either end in the extension direction of the bent portion and slid to attach the sheath member. Therefore, it is necessary to secure space at both ends in the extension direction of the bent portion to allow the sheath member to be inserted, which leads to structural constraints such as shortening the bent portion or making the housing itself larger.

[0007] Furthermore, in Patent Document 1, when the sheath member is attached, not only does the inner surface of the sheath portion come into contact with the locking edge portion during the sliding motion, but the two parallel edges and the bent portion also come into surface contact and rub against each other. This increases the frictional resistance when attaching (inserting) the sheath member, which increases the workload of attaching the sheath member and, consequently, connecting the two wall bodies. Here, if the parallel edges are separated from the bent portion, the frictional resistance when attaching the sheath member can be reduced, but this reduces the contact pressure (pressure when surfaces come into contact, hereinafter the same) between the two parallel edges held by the sheath member, resulting in insufficient strength to connect the two wall bodies.

[0008] Incidentally, another conventional structure for connecting two wall bodies involves forming holes in the curved sections of the walls and fastening them with rivets. However, this structure has several drawbacks: it requires a dedicated riveting device, which increases the workload, and it also imposes significant structural constraints, such as requiring the formation of holes and surrounding structures to accommodate the use of the dedicated device.

[0009] This invention has been made in view of these points, and one of its objectives is to provide a housing that can alleviate structural constraints, reduce the workload, and effectively demonstrate the connection strength between two wall bodies. [Means for solving the problem]

[0010] A housing according to one aspect of the present invention is a housing composed of a plurality of walls, wherein at least two adjacent walls are connected via a connector, the wall comprises a main surface portion that forms the outer circumferential surface of the housing, a joint surface portion that protrudes from the outer edge of the main surface portion as its base end and has its tip on the inside or outside of the housing, and a locking surface portion that extends from the tip side of the joint surface portion toward the main surface portion and has an acute angle with respect to the joint surface portion, the joint surface portion and the locking surface portion extend in the direction of extension of the outer edge of the main surface portion, The connector comprises a main body having a receiving opening that can receive from the middle portion in the extending direction of the locking surfaces when the joining surfaces of the two walls are in contact with each other and the locking surfaces of the walls are aligned, and a pair of guide parts formed on the receiving opening side of the main body, and connects the two walls by sandwiching the two locking surfaces that are aligned in the direction in which the two joining surfaces are pushed against each other via the elasticity of the main body, and in the approach operation of bringing the main body closer to the joining surfaces when the two walls are connected by the connector, The two adjacent locking surfaces are arranged so as to be separated from each other from the tip side of the joining surface toward the main surface, and one of the two adjacent locking surfaces is parallel to one of the pair of guides, and the other of the two adjacent locking surfaces is parallel to the other of the pair of guides. The pair of guide portions are characterized in that they slide against the two adjacent locking surfaces, causing the main body to elastically deform in the opposite direction to the pushing direction, thereby guiding the passage of the two adjacent locking surfaces into the receiving opening. [Effects of the Invention]

[0011] According to the present invention, the connector can be attached by sandwiching the two adjacent locking surfaces with the main body while the joining surfaces of the two wall bodies are in contact with each other. In this attachment, the two adjacent locking surfaces only need to be received through the receiving opening of the main body at the middle of the extension direction of the locking surfaces, eliminating the need for the use of separate tools or the work of sliding the connector in the extension direction of the locking surfaces. This reduces the burden of the work of connecting the two wall bodies while easing structural constraints such as securing space for tools or space for sliding the connector. Furthermore, since the connector can be attached without sliding as described above, the occurrence of friction on the joining surfaces during attachment can be suppressed, and even if the force applied by the elasticity of the main body is increased, the burden of the attachment work can be avoided. Therefore, the force applied from the main body can be increased, the contact pressure between the two joining surfaces can be increased, and the connection strength of the two wall bodies can be effectively demonstrated. [Brief explanation of the drawing]

[0012] [Figure 1] This is a schematic perspective view of the housing according to the embodiment. [Figure 2] This is a schematic perspective view illustrating the wall connection structure in the embodiment. [Figure 3] Figure 2 is an exploded view. [Figure 4] Figure 4A is a top view of Figure 2, Figure 4B is a top view similar to Figure 4A showing the state immediately before attaching the connector, and Figure 4C is a top view similar to Figure 4A showing the intermediate stage of attaching the connector. [Figure 5] Figures 5A and 5B are schematic diagrams of the two wall bodies in the embodiment, viewed from the inside. [Modes for carrying out the invention]

[0013] Hereinafter, an enclosure according to one embodiment of the present invention will be described in detail with reference to the attached drawings. It should be noted that the present invention is not limited to the embodiment described below, and can be modified as appropriate without changing its essence. In the following figures, some components may be omitted for the sake of clarity. Furthermore, in the following description, unless otherwise specified, "up," "down," "left," "right," "front," and "back" 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.

[0014] Figure 1 is a schematic perspective view of an enclosure according to an embodiment. The enclosure 10 shown in Figure 1 has a predetermined storage space inside, which houses predetermined electrical equipment such as a distribution board, control panel, and circuit breaker (not shown). The enclosure 10 is constructed by connecting a plurality of panel-shaped walls. More specifically, the enclosure 10 comprises an upper wall 11, a lower wall 12, and a plurality of lateral walls 20 provided between the upper wall 11 and the lower wall 12. In this embodiment, the lateral walls 20 are provided in multiples (four in Figure 1) arranged left and right on both the front and rear sides of the upper wall 11 and the lower wall 12. Each wall 11, 12, and 20 is not particularly limited, but can be exemplified by being formed from a metal plate such as a steel plate.

[0015] Next, we will describe the connection structure of two adjacent lateral wall bodies 20 in the left-right direction. Here, as a representative example, we will describe the connection structure of the area enclosed by the dashed line in Figure 1. Hereafter, of the left and right lateral wall bodies 20 including the area enclosed by the dashed line in Figure 1, the lateral wall body 20 located on the left will be referred to as the first wall body 20A, and the lateral wall body 20 located on the right will be referred to as the second wall body 20B.

[0016] Figure 2 is a schematic perspective view illustrating the wall connection structure in the embodiment. Figure 3 is an exploded view of Figure 2. As shown in Figures 2 and 3, the right end of the first wall 20A and the left end of the second wall 20B are formed by bending and are connected adjacent to each other. The first wall 20A and the second wall 20B each have a main surface portion 21, a joining surface portion 22, and a locking surface portion 23.

[0017] The main surface 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 21 has a rectangular shape that is substantially the same as the planar shape of the first wall body 20A and the second wall body 20B, and includes two long sides extending in the vertical direction on both the left and right sides.

[0018] The joint surface portion 22 is formed to project rearward (inward of the housing 10) from the outer edge forming the long side of the main surface 21. Therefore, the joint surface portion 22 is continuous with the outer edge side of the main surface 21 and has a tip end inside the housing 10. The joint surface portion 22 is directed in a direction substantially perpendicular to the main surface 21.

[0019] The locking surface portion 23 projects from the tip end side of the joint surface portion 22 toward the rear surface (inner surface) of the main surface 21. The locking surface portion 23 has the tip end side of the joint surface portion 22 as the base end and has a tip end on the side opposite to the left - right direction with respect to the base end. The locking surface portion 23 is directed in a direction in which the angle between it and the joint surface portion 22 is an acute angle. In other words, the locking surface portion 23 is formed by bending the tip end side region of the joint surface portion 22 at an angle greater than 90°.

[0020] The first wall body 20A and the second wall body 20B are in a state where their respective main surfaces 21 are arranged on the same plane and their respective joint surface portions 22 are in contact with each other (the state shown in FIG. 2). In this state, the locking surface portions 23 of the first wall body 20A and the second wall body 20B are arranged so as to be at the same position in the front - rear direction and are in a state of being aligned in the left - right direction. In such a state, the connector 30 is mounted across the first wall body 20A and the second wall body 20B.

[0021] The connector 30 includes a single main body portion 31 and a pair of left and right guide portions 32 (the left guide portion 32 is not shown in FIG. 2) formed continuously with the main body portion 31. The connector 30 extends in the vertical direction (a predetermined linear direction) which is the extending direction of the outer edge where the joint surface portion 22 and the locking surface portion 23 are formed, and is formed such that the cross-sectional shape is uniform in the extending direction. The connector 30 including the main body portion 31 contacts the rear end of the joint surface portion 22 and the locking surface portion 23 at a predetermined length in such an extending direction. In the present embodiment, the connector 30 has a bilaterally symmetric shape, and is provided in a shape such that the width in the left-right direction is about 1.2 to 1.5 times the width in the front-rear direction when viewed from above. Note that the connector 30 is not in contact with the main surface portion 21.

[0022] As an example, the connector 30 can be formed by cutting a long member formed by extrusion molding to a predetermined length, by injection molding, or by bending a single plate member. The connector 30 is made of a metal material such as aluminum, stainless steel, spring steel, or an appropriate resin material, and is provided so as to be elastically deformable by applying an intentional external force. In the connector 30 of the present embodiment, the protruding corner side of the bent portion is formed in an arc shape in cross section.

[0023] FIG. 4A is a top view of FIG. 2. As shown in FIGS. 2 and 4A, in a state where the connector 30 is attached to the first wall body 20A and the second wall body 20B, the main body portion 31 is provided so as to surround the rear part and both left and right sides of the two aligned locking surface portions 23. The main body portion 31 includes a pair of left and right retaining portions 34, a pair of left and right connecting portions 35, and a central forming portion (contact portion) 36, and forms a receiving port 37 in the front.

[0024] The pair of retaining portions 34 are formed such that the separation width in the left-right direction gradually decreases from the rear to the front when viewed from above. The pair of retaining portions 34 contact the portion (surface) directed toward the rear of the locking surface portion 23, and in the present embodiment, contact the tip of the locking surface portion 23. By the retaining portion 34 contacting the tip of the locking surface portion 23 in this way, the rearward displacement in the direction away from the main surface portion 21 by the connector 30 is restricted.

[0025] The pair of connecting portions 35 connect the rear ends of the pair of retaining portions 34 to the left and right ends of the central forming portion 36. When viewed from above, the pair of connecting portions 35 are formed such that the spacing between them in the left-right direction gradually increases from the rear to the front. The connecting portions 35 are formed such that the angle between them and the retaining portions 34 connected at the front end is a right angle or close to a right angle. As a result, the inward corner portion spanning the connecting portion 35 and the retaining portion 34 is formed in a groove shape, into which the tip of the locking surface portion 23 fits.

[0026] The pair of connecting portions 35 are arranged along the locking surface portion 23. In this embodiment, the connecting portions 35 are arranged with the locking surface portion 23 either in surface contact or with a small gap between them.

[0027] The central forming portion 36 extends parallel to the left and right directions when viewed from above, is parallel to the main surface portion 21, and is oriented perpendicular to the joining surface portion 22. The central forming portion 36 is formed such that the angle between it and the connecting portions 35 that are connected at both the left and right ends is obtuse.

[0028] The central forming portion 36 is in contact with the boundary between the joint surface portion 22, which is the front (rear end) of the joint surface portion 22, and the locking surface portion 23. As a result, the central forming portion 36 and the pair of retaining portions 34 are positioned to sandwich the two adjacent locking surface portions 23 from the front and rear directions.

[0029] The pair of guide portions 32 are formed to protrude rearward from the rear end of the retaining portion 34 on the main body portion 31, and are formed so that, when viewed from above, the spacing between them in the left-right direction gradually increases from rear to front. The pair of guide portions 32 are formed so that the angle between them and the retaining portion 34, which is connected at the rear end, is a right angle or close to a right angle.

[0030] A receiving opening 37 of the main body 31 is formed at the corner portion that forms the boundary between the rear end (base end) of the guide portion 32 and the front end of the retaining portion 34. In other words, the guide portion 32 is formed in conjunction with the receiving opening 37 side of the main body 31. The receiving opening 37 is open in the front-rear direction, and two adjacent locking surfaces 23 pass through it, as will be described later. Since the location where the receiving opening 37 is formed is a bent portion, it is formed as a corner with a circular arc cross-section.

[0031] Figure 4B is a top view similar to Figure 4A, showing the state immediately before the connector is attached. As shown in Figure 4B, the pair of guides 32 are capable of surface contact with both of the two adjacent locking surfaces 23 in an unloaded state where no external force is applied before the connector 30 is attached to the locking surface 23. In other words, when viewed from above, one of the pair of guides 32 (the left guide) is parallel to one of the two adjacent locking surfaces 23 (the left locking surface 23), and the other (the right guide) is parallel to the other (the right) locking surface 23.

[0032] Furthermore, in the unloaded state of the connector 30, the spacing W1 between the inner corner portions of the connecting parts 35 and retaining parts 34 located on the left and right is formed to be slightly smaller than or the same as the left-right spacing W2 between the tips of the two adjacent locking surfaces 23 when the two joining surfaces 22 are in surface contact. As a result, when the connector 30 is attached to the two adjacent locking surfaces 23, the main body 31 elastically deforms in a direction that slightly expands in the left-right direction. Therefore, the connector 30 clamps the two adjacent locking surfaces 23 from both sides via the elasticity of the main body 31, and connects the first wall 20A and the second wall 20B by applying a force in the direction that the two joining surfaces 22 push against each other.

[0033] Figures 5A and 5B are schematic diagrams of the two wall bodies in the embodiment, viewed from the inside. As shown in Figures 5A and 5B, in the first wall body 20A and the second wall body 20B, the joint surface portion 22 and the locking surface portion 23 extend along the entire vertical direction of the outer edge which is the long side of the main surface portion 21. Furthermore, the joint surface portions 22 of the first wall body 20A and the second wall body 20B are in contact with each other and are connected via a connector 30.

[0034] In Figure 5A, connectors 30 are provided separately at both ends of the joint surface 22 and the locking surface 23 in the vertical direction (the direction in which the joint surface 22 and the locking surface 23 extend). In addition, in the same figure, a connector 30 separate from the connectors 30 at both ends is provided in the vertical middle section of the joint surface 22 and the locking surface 23, so that a total of three connectors 30 are provided between the first wall body 20A and the second wall body 20B. In this way, the two lateral wall bodies 20 to be connected (first wall body 20A and second wall body 20B) can be connected via multiple connectors 30.

[0035] Using three connectors 30 as shown in Figure 5A is just one example and can be changed. For example, the connector 30 in the middle of the vertical direction may be omitted, leaving only two connectors 30 at both ends in the vertical direction. In addition to the two connectors at both ends in the vertical direction, multiple connectors 30 may be provided at predetermined intervals, resulting in a total of four or more connectors 30. Alternatively, as shown in Figure 5B, connectors may be provided over substantially the entire vertical length of the joint surface 22 and the locking surface 23. The vertical length, mounting position, and number of connectors 30 can be arbitrarily changed according to various conditions such as the size, dimensions, weight, and thickness of the first wall 20A and the second wall 20B, as well as the intended use of the housing 10.

[0036] Next, the method of connecting the first wall 20A and the second wall 20B using the connector 30 will be described below with reference to Figure 4C, in addition to Figures 4A and 4B. Figure 4C is a top view similar to Figure 4A, showing the intermediate stage in which the connector is being attached.

[0037] First, as shown in Figure 4B, the locking surfaces 23 of the first wall 20A and the second wall 20B are aligned in the front-to-back direction, and the joining surfaces 22 are arranged so that they make surface contact with each other. This results in the two locking surfaces 23 being aligned side by side. The arrangement of the first wall 20A and the second wall 20B is carried out by placing their main surfaces 21 on a horizontal surface such as a workbench, or by pressing them against a vertical wall surface, etc. However, in the following explanation, the arrangement will be described in the direction of the arrows in each figure.

[0038] With the components positioned as described above, the pair of guide portions 32 are brought into surface contact with the two adjacent locking surfaces 23, and then the connector 30 is pushed forward in a movement that brings it closer to the main surface 21. This approach movement brings the main body portion 31 of the connector 30 closer to the joining surface 22.

[0039] As the connecting member 30 approaches, the pair of guide members 32 slide against the two adjacent locking surfaces 23, as shown in Figure 4C. This causes the pair of guide members 32 to move away from each other in the left-right direction, as indicated by the white arrows in Figure 4C, and elastically deforms the main body 31 in a direction that expands the left-right width of the receiving opening 37 (in the opposite direction to the direction in which the two joining surfaces 22 push against each other). Thus, the pair of guide members 32 guide the elastic deformation of the main body 31 and also guide the forward movement of the connecting member 30, in other words, the passage of the two adjacent locking surfaces 23 into the receiving opening 37.

[0040] The elastic deformation of the main body 31 is mainly due to the expansion of the angle between the obtuse connecting portion 35 and the central forming portion 36, and the bending deformation of the connecting portion 35.

[0041] As the connecting device 30 continues its approaching motion and the receiving opening 37 passes the tips of each locking surface portion 23, the elasticity of the main body portion 31 causes the main body portion 31 to change shape so that the width of the receiving opening 37 is reduced, returning it to its initial shape. As a result, as shown in Figure 4A, the two adjacent locking surface portions 23 are received by the main body portion 31, sandwiched from the left and right directions through the receiving opening 37, and the connecting device 30 is attached to the two adjacent locking surface portions 23. In this attachment, the connecting device 30 can be inserted and slid into the main body portion 31 from the middle of its extension direction through the receiving opening 37, without inserting the connecting device 30 from both the upper and lower ends of the locking surface portion 23.

[0042] With the connector 30 attached to the two adjacent locking surfaces 23, the elasticity of the main body 31 causes the two adjacent locking surfaces 23 to be sandwiched from the left and right. As a result, a force is applied from the main body 31 in a direction that causes the two joining surfaces 22 to push against each other, creating contact pressure, and the connector 30 fastens the joining surfaces 22 and locking surfaces 23 of each wall body 20A and 20B, thus connecting them.

[0043] Furthermore, with the connector 30 attached, the central forming portion 36 and the pair of retaining portions 34 sandwich the two adjacent locking surfaces 23 from the front and rear directions. This restricts the relative movement of the first wall 20A and the second wall 20B in the front and rear directions.

[0044] As described above, in the above embodiment, the work of attaching the connector 30 is performed as described above, eliminating the need for the use of separate tools such as rivets or screwdrivers, and also eliminating the work of sliding the connector 30 in the vertical direction. This simplifies the work of connecting the first wall 20A and the second wall 20B, thereby reducing the burden. Furthermore, structural constraints such as securing space for the tools and space for sliding the connector 30 around the connection position of the first wall 20A and the second wall 20B can be alleviated.

[0045] Furthermore, since the connector 30 can be attached without sliding it vertically along the locking surface 23, friction between the locking surface 23 and the main body 31 during the attachment process can be suppressed, and even if the clamping force applied from the main body 31 is increased, the burden of attachment work can be avoided. Therefore, the force applied from the main body 31 can be increased, and the contact pressure between the two joining surfaces 22 can be increased, thereby enabling the connection strength of the first wall 20A and the second wall 20B to be fully realized.

[0046] Furthermore, since the connector 30 has a predetermined length in the vertical direction, it is possible to increase the area over which clamping force is applied to the locking surface 23 compared to spot rivet fastening, thereby improving the connection strength.

[0047] Furthermore, as described above, since the pair of guide portions 32 are parallel to the two adjacent locking surfaces 23, the two locking surfaces 23 and the pair of guide portions 32 can be easily set to a state of surface contact as shown in Figure 4B during the initial stage of the connector 30's approach movement. This prevents the connector 30 from wobbling in the left-right direction during the approach movement and facilitates a smoother approach.

[0048] Furthermore, the retaining portion 34 restricts the rearward displacement of the connector 30, allowing the connector 30 to be stably mounted and maintaining a good connection between the first wall 20A and the second wall 20B.

[0049] It should be noted that the present invention is not limited to the embodiments described above, and can be implemented with various modifications. In the embodiments described above, the size, shape, orientation, etc., shown in the accompanying drawings are not limited thereto, and can be appropriately modified within the scope that allows the present invention to exert its effects. Furthermore, it can be implemented with appropriate modifications as long as it does not deviate from the scope of the objectives of the present invention.

[0050] The connector 30 described above is not limited to the illustrated configuration example, and various modifications are possible. For example, the central forming portion 36 may be configured to be separated from the locking surface portion 23 and the joining surface portion 22, or the connecting portion 35 may be configured to partially contact the locking surface portion 23 without surface contact. Alternatively, the central forming portion 36 may be omitted, and each connecting portion 35 may be extended to the rear, with the rear ends of each connecting portion 35 forming a bent portion that connects them.

[0051] Furthermore, although the above embodiment describes a case where the angle of the main surface portion 21 with respect to the joint surface portion 22 is formed to be approximately right angle, the invention is not limited to this, and configurations with acute or obtuse angles are also possible. In such configurations, the angle of the locking surface portion 23 with respect to the joint surface portion 22 is changed in accordance with the angle change, and the angle of the bent portion of the connector 30 is changed as appropriate.

[0052] Alternatively, a single connector 30 may have multiple main body portions 31 and a pair of guide portions 32 formed at predetermined intervals in the vertical direction (extension direction).

[0053] Furthermore, the shape of the main surface portion 21 only needs to form the outer circumferential surface of the housing 10, and in addition to being formed flat, it may also be a curved shape along an arc or a bent shape.

[0054] Furthermore, the wall bodies connected by the connector 30 can be adjacent wall bodies, and may include the side wall body 20 and the upper wall body 11 or the lower wall body 12. In this case, the angle between the main surface portion 21 and the joint surface portion 22 may become acute, or the main surface portion 21 may take on a bent shape.

[0055] Furthermore, although the above embodiment describes a configuration in which the connector 30 is provided inside the housing 10, it may also be provided outside the housing 10. In this configuration, the joining surface portion 22 has its tip facing outward (forward) of the housing 10, and the locking surface portion 23 protrudes at an acute angle from the tip side of the joining surface portion 22 toward the front surface (outer surface) of the main surface portion 21. [Explanation of symbols]

[0056] 10: Cabinet 11: Upper wall (wall) 12: Lower wall (wall) 20: Side wall (wall) 20A: First wall (wall) 20B: 2nd wall (wall) 21:Main surface part 22:Joint surface part 23:Latching surface part 30: Connector 31: Main body 32: Information department 34: Retaining part 35: Connection part 36: Central forming part (contact part) 37: Receiving port

Claims

1. A housing composed of multiple walls, wherein at least two adjacent walls are connected via connectors, The wall comprises a main surface portion that forms the outer circumferential surface of the housing, a joint surface portion that protrudes from the outer edge of the main surface portion as its base end and has its tip on the inside or outside of the housing, and a locking surface portion that extends from the tip side of the joint surface portion toward the main surface portion and has an acute angle between it and the joint surface portion, the joint surface portion and the locking surface portion extend in the direction of extension of the outer edge of the main surface portion, The connector comprises a main body having a receiving opening that can receive from the intermediate portion in the extending direction of the locking surface when the joining surfaces of the two wall bodies are in contact with each other and the locking surfaces of the wall bodies are aligned, and a pair of guide parts formed on the receiving opening side of the main body, and connects the two wall bodies by sandwiching the two locking surfaces that are aligned in the direction in which the two joining surfaces are pushed against each other via the elasticity of the main body, In the approach operation of bringing the main body closer to the joining surface when the two wall bodies are connected by the connector, the two adjacent locking surfaces are arranged to move away from each other from the tip side of the joining surface toward the main surface, and one of the two adjacent locking surfaces is parallel to one of the pair of guides, and the other of the two adjacent locking surfaces is parallel to the other of the pair of guides, and the pair of guides slides across the two adjacent locking surfaces to elastically deform the main body in the opposite direction to the pushing direction, thereby guiding the passage of the two adjacent locking surfaces toward the receiving opening.

2. The housing according to claim 1, characterized in that the main body portion is provided with a retaining portion that contacts the tip of the locking surface portion and restricts the displacement of the connector in the direction away from the main surface portion.

3. The housing according to claim 1 or 2, characterized in that the main body portion is provided with a contact portion that contacts the tip of the joining surface portion.

4. The housing according to claim 1, characterized in that the main body portion comprises a retaining portion that contacts the tip of the locking surface portion to restrict the displacement of the connector in the direction away from the main surface portion, a contact portion that contacts the tip of the joining surface portion, and a connecting portion that connects the retaining portion and the contact portion and runs along the locking surface portion.

5. The housing according to any one of claims 1 to 4, characterized in that the connector is not in contact with the main surface when the two wall bodies are connected.

Images