JP2009165309A - Case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a case which can be manufactured inexpensively in spite of having an undercut outer wall and has a high degree of freedom in designing. <P>SOLUTION: The case 1 for an electrical connection box 10 includes a case body 3, an upper cover 2, and a lower cover 4. The case body 3 is composed of a frame body 30 and a side cover 5 fitted to the frame body 30. On an outer wall 32a making up the case body 3, a rock receiving portion 52 and a fastening band fitting portion 45 are arranged in a row along the direction of opening of a pair of metal molds with which the frame body 30 is molded. The outer wall 32a is made up of a portion 8 that is a part of the frame body 30 and a first wall 50 that is a part of the side cover 5. The rock receiving portion 52 is formed to be integral with the first wall 50, and the fastening band fitting portion 45 is formed to be integral with the portion 8. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a case suitable for an electrical junction box that is mounted in an engine room of an automobile and accommodates electrical components such as fuses and relays.

  In an automobile, an electrical connection box such as a junction box, a fuse box, or a relay box is used to accommodate electrical components such as connectors of wire harnesses, relays, fuses, and electronic control units (see Patent Documents 1 to 3). Is installed. Various types of electrical connection boxes are used depending on the type of vehicle. For example, as in the electrical connection box 210 shown in FIGS. 5 and 6, the case main body 203 and the upper attached to the upper surface of the case main body 203 are used. There is a case in which various electrical components are accommodated in a case 201 made of a synthetic resin, which includes a cover 202 and a lower cover 204 attached to the lower surface of the case main body 203. The electrical junction box 210 is attached to the engine room of the automobile.

  Moreover, the arrow Y in FIGS. 5 and 6 indicates the height direction of the case 201. An arrow X indicates the short direction of the case 201. An arrow Z indicates the longitudinal direction of the case 201. The upper cover 202 is attached close to the upper surface of the case main body 203 along the height direction Y. The lower cover 204 is attached so as to be close to the lower surface of the case body 203 along the height direction Y. Further, in this specification, the side on which the upper cover 202 along the height direction Y of the case 201 is attached is defined as the upper side, and the side on which the lower cover 204 along the height direction Y is attached is defined as the lower side.

  The case main body 203 is provided in a rectangular frame shape by four outer walls 232 extending along the height direction Y, and accommodates the above-described various electrical components on the inner side. The case main body 203 includes a frame main body 230 and a side cover 205 detachably provided on the frame main body 230. The side cover 205 is a cover for covering a connection portion that connects the electric circuit accommodated in the case main body 203 and the terminal of the wire harness. The side cover 205 is removed from the frame main body 230 when connecting (or removing) the electric circuit and the terminal of the wire harness, and is attached to the frame main body 230 at other times.

  Of the four outer walls 232 of the case body 203, a pair of outer walls 232 a formed with a small width, that is, a pair of outer walls 232 a provided in parallel with the lateral direction X, are provided on the upper cover 202. A lock receiving portion 252 that can be engaged with the lock portion 223 is provided. The lock receiving portion 252 is provided at the center along the short direction X of the outer wall 232a. The lock receiving portion 252 is provided in the shape of a rectangular tube extending along the height direction Y, and the lock portion 223 is fitted into the inner space. Further, the lock portion 223 and the lock receiving portion 252 are engaged with each other, whereby the upper cover 202 and the case main body 203 are fixed to each other.

  Each of the four outer walls 232 of the case body 203 is provided with a second lock receiving portion 233 that can be engaged with a second lock portion 243 provided on the lower cover 204. Further, in the pair of outer walls 232 a, one second lock receiving portion 233 is provided on each side of the lock receiving portion 252 along the short direction X. Further, the lower cover 204 and the case main body 203 are fixed to each other by the second lock portion 243 and the second lock receiving portion 233 engaging with each other.

  Further, of the pair of outer walls 232a of the case main body 203, a binding band that fixes the wire harness drawn into the case main body 203 so as not to move on one outer wall 232a located on the near side in FIG. A binding band attaching portion 245 as a convex portion to which 6 is attached is provided. The binding band attaching portion 245 protrudes along the longitudinal direction Z from the outer surface of the lower end along the height direction Y of the lock receiving portion 252 described above. The wire harness is provided in the lower cover 204 and is drawn into the case main body 203 through the harness lead-in hole 244 provided facing the binding band attaching portion 245. In the connection portion described above, Connected with electrical circuit.

The binding band 6 is made of synthetic resin, and is provided with a band part 61 provided in a band shape, and provided at one end of the band part 61, and fixes the other end of the band part 61 wound around the outer periphery of the wire harness. And a fixing portion 62. The binding band 6 is wound around the outer periphery of the wire harness to prevent the wire harness from flapping.
JP 2000-316219 A JP-A-9-216648 JP-A-8-288667

  In the case 201 of the conventional electrical junction box 210 described above, the binding band attaching portion 245 is provided so as to protrude from the outer surface of the lock receiving portion 252 along the longitudinal direction Z. (It means the dimension of the widest part.) That is, there is a problem that the dimension along the longitudinal direction Z becomes long, and it has been required to reduce the outermost dimension.

  Therefore, it is conceivable to reduce the outermost dimension by providing the lock receiving portion 252 and the binding band attaching portion 245 at a position along the height direction Y on the one outer wall 232a. . By carrying out like this, it is thought that the said outermost dimension can be made small by the dimension along the longitudinal direction Z of the binding band attaching part 245.

  However, the case 201 has a position where the lock receiving portion 252 and the binding band attaching portion 245 are arranged along the height direction Y on the one outer wall 232a for the convenience of manufacturing the case main body 203 (frame main body 230). There was a problem that it was difficult to provide in.

  That is, the frame main body 230 of the case main body 203 is molded by a well-known injection molding, but the opening direction of the pair of molds used at the time of the injection molding is parallel to the height direction Y. When the 252 and the binding band attaching portion 245 are provided at positions aligned along the height direction Y, the case main body 203, that is, the frame main body 230 is undercut, and the shape cannot be released from the pair of molds. It is.

  An undercut process in which the undercut is released from a pair of molds using a slide core is known. However, since the undercut process using the slide core has a problem that the cost becomes very high, the lock receiving part 252 and the binding band attaching part 245 are aligned in the height direction Y by this method. It is not desirable to mold the case body, that is, the frame body having the provided structure. Therefore, also in the case 201 described above, the binding band attaching portion 245 must be configured to protrude from the outer surface of the lock receiving portion 252, and therefore, the outermost dimension of the case 201, that is, along the longitudinal direction Z. The dimensions were long.

  In addition to the lock receiving portion 252 and the binding band attaching portion 245, two second lock receiving portions 233 as convex portions protruding from the surface of the outer wall 232a sandwich the lock receiving portion 252 on the outer wall 232a. Although it is provided on both sides, it is ideal that one second lock receiving portion 233 is originally provided at the center along the short direction X at the lower end of the outer wall 232a. The reason for this is that by providing one second lock receiving portion 233 at the center of the lower end of the outer wall 232a along the short direction X, the locking function with the lower cover 204 can be achieved without rattling with the minimum number of locks. Because it can be done.

  However, even if the binding band attaching portion 245 is not provided, the second lock receiving portion 233 is provided at the center along the short direction X of the lower end of the outer wall 232a, that is, the second lock receiving portion. Providing 233 at a position aligned with the lock receiving portion 252 along the height direction Y is difficult due to the above-described undercut problem.

  Therefore, in the case where one second lock receiving portion 233 is unavoidably provided at the center along the short direction X of the outer wall 232a, the second lock receiving portion 233 is disposed from the outer surface of the lock receiving portion 252 in the longitudinal direction Z. In the case thus provided, the second lock receiving portion 233 protrudes from the outer surface of the lock receiving portion 252 along the longitudinal direction Z in the same manner as the case 201 described above. Since it is provided, there is a problem that the outermost dimension of the case, that is, the dimension along the longitudinal direction Z becomes long.

  Thus, since it was not easy to manufacture a case having an undercut-shaped outer wall at low cost, the design freedom of the case was reduced, and the case was enlarged. There has been a problem that the configuration of is complicated.

  Therefore, an object of the present invention is to provide a case with a high degree of design freedom that can be manufactured at low cost while having an undercut outer wall.

  To achieve the above object, the invention described in claim 1 is a case having a case main body and a cover that is detachably attached to the case main body. A lock receiving portion that can be engaged with a lock portion provided on the cover and a convex portion that protrudes from the surface of the one outer wall and attaches another article are provided, and these lock receiving portions And a convex portion are provided at positions aligned along the opening direction of the pair of molds for molding the case main body, and the one outer wall is provided detachably on the outer wall main body and the outer wall main body. The case includes a connecting wall, wherein one of the outer wall main body and the connecting wall is provided with the lock receiving portion, and the other is provided with the convex portion.

  The invention described in claim 2 is the invention described in claim 1, wherein one of the outer wall main body and the connection wall provided with the lock receiving portion is cut into a recess from the one outer edge portion. A cutout portion into which the convex portion is fitted is provided while being notched.

  The invention described in claim 3 is the invention described in claim 1 or 2, wherein the convex portion fixes the electric wire drawn into the case main body so as not to move. It is a bundling member attaching part which attaches this bundling member. In addition, as the binding member, for example, a binding band or an adhesive tape can be used.

  According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the second article as the other article that is detachably attached to the side of the case body opposite to the side to which the cover is attached. The cover further includes a second cover, and the convex portion is a second lock receiving portion that can be engaged with a second lock portion provided on the second cover.

  According to a fifth aspect of the present invention, in the first aspect of the first to fourth aspects, the case main body includes a frame main body having the outer wall main body and a detachable attachment to the frame main body. A side cover having the connecting wall, wherein the side cover is a cover for covering a connecting portion that connects an electric circuit accommodated in the case main body and a terminal of the electric wire. To do.

  According to the first aspect of the present invention, the lock receiving portion that can be locked to the lock portion provided in the cover is protruded from the surface of the one outer wall on the one outer wall constituting the case main body. A convex portion for attaching another article, and the lock receiving portion and the convex portion are provided in positions along the opening direction of a pair of molds for molding the case body, and The one outer wall is composed of an outer wall main body and a connecting wall detachably provided on the outer wall main body, and the lock receiving portion is provided on one of the outer wall main body and the connecting wall, and the other Since the convex portion is provided, the case main body having one outer wall having an undercut shape can be manufactured at low cost without using an injection molding machine having a complicated configuration. As a result, the degree of freedom in designing the case main body is increased, so that the case can be miniaturized and the case structure can be simplified.

  According to the invention described in claim 2, one of the outer wall main body and the connection wall provided with the lock receiving portion is cut out in a concave shape from the one outer edge portion and the inner side Since the notch part into which the convex part is fitted is provided, when an external force in the torsional direction is applied to the case body, the inner surface of the notch part and the surface of the convex part come into contact with each other, thereby deforming the case body. Can be minimized. That is, the rigidity of the case body can be improved.

  According to the invention described in claim 3, the convex portion is a binding member attaching portion for attaching the binding member as the other article that fixes the electric wire drawn into the case main body so as not to move. Thus, it is possible to provide a case capable of minimizing the enlargement of the outer dimensions.

  According to the invention described in claim 4, the case body further includes a second cover as the other article that is detachably attached to a side opposite to a side to which the cover is attached, and the convex portion. However, since the second lock receiving portion can be engaged with the second lock portion provided in the second cover, a case with a simple configuration capable of minimizing the number of locks is provided. can do. Moreover, the case which can suppress the enlargement of an external dimension to the minimum can be provided.

  According to the invention described in claim 5, since the lock receiving portion or the convex portion is provided on the connecting wall of the side cover that has been provided separately from the frame main body, the design change and the cost increase of the case main body. Can be minimized.

(First embodiment)
Hereinafter, a case according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing an electrical junction box constituted by a case according to the first embodiment of the present invention. FIG. 2 is an enlarged perspective view showing a main part of the case shown in FIG.

  The case 1 according to the present embodiment constitutes an electrical junction box 10 shown in FIG. The electrical junction box 10 is attached to an engine room of an automobile and houses a plurality of electrical components such as connectors, relays, fuses, and electronic control units of wire harnesses, and various electrical components and various types mounted on the automobile. Various electronic devices are electrically connected according to a predetermined pattern.

  The case 1 includes a case body 3, an upper cover 2 as a cover that is detachably attached to the upper surface of the case body 3, and a lower cover 4 that is detachably attached to the lower surface of the case body 3. Yes. The case body 3, the upper cover 2, and the lower cover 4 are made of an insulating synthetic resin and are molded by a well-known injection molding.

  Moreover, the arrow Y in FIGS. 1 and 2 indicates the height direction of the case 1. An arrow X indicates the short direction of the case 1. An arrow Z indicates the longitudinal direction of the case 1. The upper cover 2 is attached close to the upper surface of the case body 3 along the height direction Y. Further, the lower cover 4 is attached close to the lower surface of the case body 3 along the height direction Y. Moreover, in this specification, the side where the upper cover 2 along the height direction Y of the case 1 is attached is defined as the upper side, and the side where the lower cover 4 along the height direction Y is attached is defined as the lower side.

  The case body 3 includes a pair of opposed outer walls 32a and 32c provided parallel to the short direction X and a pair of opposed outer walls 32b and 32d provided parallel to the longitudinal direction Z. It is provided in the shape. The outer walls 32a, 32b, 32c, and 32d extend along the height direction Y, and are provided with end portions that are continuous with each other. Further, the inside of these outer walls 32a, 32b, 32c, and 32d is partitioned into a large number of spaces by a plurality of partition walls, and the electrical components such as the relays and fuses described above are mounted in the large numbers of spaces.

  Each of the pair of outer walls 32 a and 32 c is provided with one lock receiving portion 52 that is engaged with a lock portion 23 described later provided on the upper cover 2. The lock receiving portions 52 are provided so as to protrude along the longitudinal direction Z from the surfaces of the outer walls 32a and 32c, and are provided in a frame shape capable of positioning the lock portion 23 inside. Each lock receiving portion 52 is provided at the upper end of the outer walls 32 a and 32 c and at the center along the short direction X. Then, when a lock portion 23 described later is engaged with these lock receiving portions 52, the upper cover 2 is attached to the case main body 3 so as to cover the upper surface on which various electric components of the case main body 3 are mounted.

  In addition, one second lock receiving portion 33 is provided at the lower end of the pair of outer walls 32a and 32c. The second lock receiving portion 33 is engaged with a second lock portion 43 described later provided on the lower cover 4. These second lock receiving portions 33 are provided so as to protrude along the longitudinal direction Z from the surfaces of the outer walls 32a and 32c, and are provided in a cylindrical shape capable of positioning the second lock portion 43 inside. Yes. In addition, two second lock receiving portions 33 are provided at intervals between each other at the lower ends of the pair of outer walls 32b and 32d. These second lock receiving portions 33 are provided so as to protrude from the surfaces of the outer walls 32b and 32d along the short-side direction X, and are provided in a cylindrical shape capable of positioning the second lock portion 43 on the inner side. ing. Then, when the second lock portion 43 described later is engaged with the second lock receiving portion 33, the lower cover 4 is attached to the case main body 3 so as to cover the lower surface on which various electrical components of the case main body 3 are mounted.

  Further, the outer wall 32a has a protruding wall portion 7 that is located at the center along the short direction X and protrudes downward along the height direction Y, that is, toward the lower cover 4 side. A protruding band, that is, a binding band attaching portion 45 as a binding member attaching portion is provided at the lower end of the protruding wall portion 7. That is, the outer wall 32a corresponds to one outer wall described in the claims.

  The binding band attaching part 45 is for attaching another article, that is, the binding band 6 as a binding member, and a standing part 46 standing in the longitudinal direction Z from the lower end of the protruding wall part 7; It has three frame-like parts 47a, 47b, 47c which are connected to the standing part 46 and are provided in a frame shape. That is, the binding band attaching portion 45 is provided so as to protrude along the longitudinal direction Z from the surface of the outer wall 32a. Such a binding band attaching part 45 attaches this binding band 6 by passing the band part 61 (described later) of the binding band 6 through these three frame-like parts 47a, 47b, 47c.

  The binding band 6 is for fixing a wire harness as an electric wire drawn into the case body 3 so as not to move. The binding band 6 is made of synthetic resin, and is provided with a band portion 61 provided in a band shape, and a fixing portion that is provided at one end of the band portion 61 and fixes the other end of the band portion 61 wound around the outer periphery of the wire harness. Part 62. The binding band 6 is wound around the outer periphery of the wire harness to prevent the wire harness from flapping.

  The wire harness is drawn into the case body 3 through a harness lead hole 44 provided on the lower cover 4 and facing the lower end of the protruding wall portion 7. And the terminal of this wire harness is connected with the electric circuit accommodated in the case main body 3 in the connection part provided in the case main body 3. FIG. The connecting portion is provided inside a corner where the outer wall 32a and the outer wall 32b intersect.

  Further, the case main body 3 includes a frame main body 30 and a side cover 5 that is detachably provided on the frame main body 30. The side cover 5 is a cover for covering the connection portion described above. The side cover 5 is removed from the frame body 30 when connecting (or removing) the electrical circuit and the terminal of the wire harness, and is attached to the frame body 30 at other times.

  Further, the side cover 5 is connected to a first wall 50 constituting a part of the outer wall 32a and an end of the first wall 50, and a second wall 51 constituting a part of the outer wall 32b. Are provided in an L shape. That is, the outer wall 32a is composed of two members: a portion 8 provided integrally with the outer wall 32d, that is, the portion 8 constituting the frame body 30, and the first wall 50. Similarly, the outer wall 32b is composed of two members: a portion 9 provided integrally with the outer wall 32c, that is, the portion 9 constituting the frame main body 30, and the second wall 51.

  In such a side cover 5, the end portion 53 of the first wall 50 is fitted into the engaging portion 34 provided at the end portion of the portion 8 provided integrally with the outer wall 32 d of the outer wall 32 a, and The end portion 54 of the second wall 51 is attached to the frame body 30 by being fitted into a locking portion 34 provided at the end portion of the portion 9 provided integrally with the outer wall 32c of the outer wall 32b.

  Moreover, the part 8 provided integrally with the outer wall 32d of the outer wall 32a corresponds to the outer wall main body described in the claims, and the first wall 50 corresponds to the connecting wall. Further, the above-described “lock receiving portion 52 provided on the outer wall 32 a” is provided integrally with the first wall 50. Further, the “second lock receiving portion 33 provided on the outer wall 32 a” and the “projecting wall portion 7” described above are provided integrally with the portion 8.

  The lock receiving portion 52 provided integrally with the first wall 50 and the binding band attaching portion 45 provided integrally with the protruding wall portion 7 are such that the side cover 5 is attached to the frame main body 30. Thus, it is positioned at the center along the short-side direction X and along the height direction Y. Further, the frame body 30 including the portion 8 is configured by injection molding using a pair of molds (main molds), and the opening direction of the pair of molds coincides with the height direction Y. That is, the lock receiving portion 52 and the binding band attaching portion 45 are positioned in a line along a straight line along the opening direction of the pair of molds for molding the frame main body 30, that is, the case main body 3. That is, the outer wall 32a having the lock receiving portion 52 and the binding band attaching portion 45 on the same plane along the opening direction of the pair of molds, that is, the height direction Y forms an “undercut outer wall”. .

  Further, the second lock receiving portion 33 provided in the portion 8 and the binding band attaching portion 45 are provided in the opening direction of a pair of molds for molding the frame body 30, that is, the case body 3, that is, the height direction Y, Along the straight line.

  The upper cover 2 is provided in a box shape by a ceiling wall 21 provided in a rectangular plate shape and four outer walls 22 erected along the height direction Y from the outer edge of the ceiling wall 21. . Of these four outer walls 22, a pair of outer walls 22 a that are formed to have a small width, that is, a pair of outer walls 22 a that are provided in parallel with the short-side direction X, are provided with lock receivers provided on the case body 3. One lock portion 23 to be engaged with the portion 52 is provided. Moreover, each lock part 23 is provided in the center along the transversal direction X of the outer wall 22a.

  The lower cover 4 is provided in a box shape by a bottom wall provided in a plate shape and a plurality of outer walls erected along the height direction Y from the bottom wall. Among the plurality of outer walls, a second lock portion that engages with a second lock receiving portion 33 provided on the case body 3 is provided at the upper ends of the four outer walls 42 that overlap the outer walls 32a, 32b, 32c, and 32d of the case body. 43 are provided. Further, the harness pull-in hole 44 described above is provided in the outer wall 42 a that is overlapped with one outer wall 32 a of the case body 3 among these outer walls 42. The harness pull-in hole 44 is provided facing the lower end of the protruding wall portion 7.

  In the present invention, as described above, the lock receiving portion 52 and the binding band attaching portion 45 are provided on one outer wall 32a constituting the case body 3, and the lock receiving portion 52 and the binding band attaching portion 45 are provided. Since the configuration is such that the case body 3 is provided at a position that is linearly aligned along the opening direction of the pair of molds, the dimension along the longitudinal direction Z of the case body 3, that is, the outermost dimension of the case 1 Can be made smaller than the conventional case 201. That is, it is possible to provide the case 1 that can minimize the enlargement of the outer dimensions. Further, such an undercut outer wall 32a is constituted by two members of the portion 8 constituting the frame body 30 and the first wall 50 of the side cover 5, and the first wall 50 has a lock receiving portion. 52, and the portion 8 is provided with the binding band attaching portion 45, so that the case body 3, that is, the case body 30, can be manufactured at low cost without using an injection molding machine having a complicated configuration. Can do.

  Further, in the present invention, attention is paid to the side cover 5 that has conventionally been provided separately from the frame main body 30, and the lock receiving portion 52 is provided on the first wall 50 of the side cover 5. Design changes and cost increases can be minimized.

  In the first embodiment described above, the binding band attaching portion 45 for attaching the binding band 6 is provided as the binding member attaching portion. However, in the present invention, for example, an adhesive tape is used instead of the binding band 6 to wire. The harness may be fixed. In that case, the bundling member mounting portion is configured by simply providing a standing portion 46 erected in the longitudinal direction Z direction from the lower end of the protruding wall portion 7, and the standing portion 46 and the wire harness are connected to the adhesive tape. To fix each other.

(Second Embodiment)
Next, the case concerning the 2nd Embodiment of this invention is demonstrated based on FIG.3 and FIG.4. FIG. 3 is a perspective view showing an electrical junction box constituted by a case according to the second embodiment of the present invention. 4 is an enlarged perspective view showing a main part of the case shown in FIG. In these drawings, the same components as those of the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  The case 101 according to the present embodiment constitutes the electrical junction box 110 shown in FIG. This electric junction box 110 is also attached to the engine room of the automobile, etc., like the first embodiment described above.

  The case 101 includes a case main body 103, an upper cover 2 as a cover that can be detachably attached to the upper surface of the case main body 103, and another article that is detachably attached to the lower surface of the case main body 103, that is, a second cover. And a lower cover 104. The case main body 103, the upper cover 2, and the lower cover 104 are made of an insulating synthetic resin and are molded by a well-known injection molding.

  The case main body 103 includes a pair of opposed outer walls 132a and 32c provided in parallel with the short direction X and a pair of opposed outer walls 32b and 32d provided in parallel with the longitudinal direction Z. It is provided in the shape. The outer wall 132a corresponds to one outer wall described in the claims.

  Each of the pair of outer walls 132 a and 32 c is provided with one lock receiving portion 52 that is engaged with the lock portion 23 provided on the upper cover 2. These lock receiving portions 52 are provided so as to protrude along the longitudinal direction Z from the surfaces of the outer walls 132a and 32c. Each lock receiving portion 52 is provided at the upper end of the outer walls 132a and 32c and at the center along the short direction X.

  Further, one second lock receiving portion 33 that is engaged with the second lock portion 43 provided on the lower cover 104 is provided at each lower end of the pair of outer walls 132a and 32c. The second lock receiving portions 33 are provided so as to protrude along the longitudinal direction Z from the surfaces of the outer walls 132a and 32c. In addition, two second lock receiving portions 33 that are engaged with the second lock portion 43 are provided at the lower ends of the pair of outer walls 32b and 32d at intervals from each other.

  The second lock receiving portion 33 a provided on the outer wall 132 a is provided at the center along the short direction X. That is, the lock receiving portion 52 and the second lock receiving portion 33a provided on the outer wall 132a are provided at positions aligned along the height direction Y on a straight line. Moreover, the 2nd lock receiving part 33a is corresponded to the convex part described in the claim.

  Further, the case main body 103 includes a frame main body 130 and a side cover 105 that is detachably provided on the frame main body 130. The side cover 105 is a cover for covering the connection portion described above. The side cover 105 includes a first wall 150 that constitutes a part of the outer wall 132a, a second wall 51 that is connected to an end of the first wall 150 and constitutes a part of the outer wall 32b, It is provided in the L-shape shape which has. That is, the outer wall 132a is composed of two members: a portion 108 provided integrally with the outer wall 32d, that is, a portion 108 constituting the frame main body 130, and the first wall 150 constituting the side cover 105. Yes.

  In such a side cover 105, the end portion 53 of the first wall 150 is fitted into the engaging portion 34 provided at the end portion of the portion 108 provided integrally with the outer wall 32d of the outer wall 132a, and the first cover 150 is By fitting the end 54 of the second wall 51 into the portion 9 provided integrally with the outer wall 32c of the outer wall 32b, that is, the engaging portion 34 provided at the end of the portion 9 constituting the frame main body 130, Attached to the frame body 130.

  Further, the portion 108 provided integrally with the outer wall 32d of the outer wall 132a, that is, the portion 108 constituting the frame main body 130 corresponds to the outer wall main body described in the claims, and the first wall 150 of the side cover 105 is the first wall 150. Corresponds to a connecting wall. Further, the above-described “lock receiving portion 52 provided on the outer wall 132 a” is provided integrally with the first wall 150. Further, the above-described “second lock receiving portion 33 a provided on the outer wall 132 a” is provided integrally with the portion 108.

  The lock receiving portion 52 provided integrally with the first wall 150 and the second lock receiving portion 33a provided integrally with the portion 108 are formed by attaching the side cover 105 to the frame main body 130. , Positioned at the center along the short-side direction X and along the height direction Y. Further, the frame main body 130 including the portion 108 is formed by injection molding using a pair of molds (main molds), and the opening direction of the pair of molds coincides with the height direction Y. That is, the lock receiving portion 52 and the second lock receiving portion 33a are positioned in a line along a straight line along the opening direction of a pair of molds for molding the frame main body 130, that is, the case main body 103. That is, the outer wall 132a having the lock receiving portion 52 and the second lock receiving portion 33a on the same plane along the opening direction of the pair of molds, that is, the height direction Y, has an "undercut outer wall". Eggplant.

  Further, as shown in FIG. 4, the first wall 150 is recessed from the outer edge located at the lower end of the first wall 150, and the second lock receiving portion 33 a is fitted inside. A notch 152 is provided. That is, the notch 152 is provided along the outline of the second lock receiving portion 33a. The case main body 103 provided with such a notch 152 has a contact between the inner surface of the notch 152 and the surface of the second lock receiving portion 33a when an external force in the twisting direction is applied. 103 can be minimized. That is, the rigidity of the case main body 103 can be improved by providing the notch portion 152.

  In the present embodiment, the lower cover 104 is not provided with the harness lead-in hole 44 in the outer wall 142a overlapped with one outer wall 132a. And the 2nd lock part 43a latched to the 2nd lock receiving part 33a is provided in the upper end of this outer wall 142a.

  In the present invention, as described above, the lock receiving portion 52 and the second lock receiving portion 33a are positioned in the center along the short direction X of the outer wall 132a, that is, the lock receiving portion 52 and the second lock receiving portion. 33a is provided at a position aligned in a straight line along the opening direction of the pair of molds for molding the case main body 103, and the lower cover 104 is not rattled by one second lock receiving portion 33a. Therefore, the number of the second lock receiving portions 33a conventionally provided on the outer wall 132a can be reduced to one, and the configuration of the case 101 is simplified compared to the conventional case 201. can do. Further, since the second lock receiving portion 233 does not have to be configured to protrude along the longitudinal direction Z from the outer surface of the lock receiving portion 252 as in the case 201 of the related art, the enlargement of the outer dimensions is minimized. It is possible to provide a case 103 that can Further, such an undercut outer wall 132a is constituted by two members, a portion 108 constituting the frame main body 130 and the first wall 150 of the side cover 105, and the first wall 150 has a lock receiving portion. 52, and the portion 108 is provided with the second lock receiving portion 33a. Therefore, the case main body 103, that is, the case main body 130, is manufactured at low cost without using an injection molding machine having a complicated configuration. be able to.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a perspective view which shows the electrical junction box comprised with the case which concerns on the 1st Embodiment of this invention. It is a perspective view which expands and shows the principal part of the case shown by FIG. It is a perspective view which shows the electrical junction box comprised with the case which concerns on the 2nd Embodiment of this invention. It is a perspective view which expands and shows the principal part of the case shown by FIG. It is a perspective view which shows the electrical junction box comprised by the conventional case. It is a perspective view which expands and shows the principal part of the conventional case shown by FIG.

Explanation of symbols

1,101 Case 2 Upper cover (cover)
3,103 Case body 5,150 Side cover 6 Binding band (binding member, other article)
8,108 parts (outer wall body)
23 lock part 30, 130 frame main body 32a, 132a one outer wall 33a second lock receiving part (convex part)
43a 2nd lock part 45 Binding band attaching part (convex part)
50,150 first wall (connection wall)
52 Lock receiving portion 104 Lower cover (second cover, other article)
152 Notch

Claims (5)

A case having a case main body and a cover detachably attached to the case main body,
One outer wall constituting the case body, a lock receiving portion that can be locked to a lock portion provided in the cover, a convex portion that protrudes from the surface of the one outer wall and attaches another article, And the lock receiving part and the convex part are provided at a position along the opening direction of the pair of molds for molding the case body, and
The one outer wall is composed of an outer wall main body and a connecting wall detachably provided on the outer wall main body, and the lock receiving portion is provided on one of the outer wall main body and the connecting wall, and the convex is formed on the other. A case characterized in that a part is provided.   One of the outer wall main body and the connecting wall provided with the lock receiving portion is provided with a notched portion that is recessed from the one outer edge portion and into which the convex portion is fitted. The case according to claim 1, wherein:   The said convex part is a binding member attaching part which attaches the binding member as said other goods which fixes so that an electric wire drawn in the inside of the said case main body may not move, The Claim 1 or Claim 2 characterized by the above-mentioned. The case described. A second cover as the other article that is removably attached to the opposite side of the case body to the side on which the cover is attached;
The case according to claim 1, wherein the convex portion is a second lock receiving portion that can be engaged with a second lock portion provided on the second cover. The case main body is composed of a frame main body having the outer wall main body, and a side cover having the connecting wall detachably provided on the frame main body,
The said side cover is a cover for covering the connection part which connects the electric circuit accommodated in the said case main body, and the terminal of an electric wire, The one of Claim 1 thru | or 4 characterized by the above-mentioned. Case.

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