JP3212247B2 - Housing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing structure for preventing a housing from being deformed by a stress applied to a mounting bracket.

[0002]

2. Description of the Related Art Conventionally, a housing such as a resin case for accommodating an electronic component or the like is often fixed to an automobile or the like by using a mounting part (bracket). For example, a method of forming a mounting bracket insertion portion, inserting a part of the bracket into the insertion portion, and fixing the other portion to a vehicle or the like is widely used because it is inexpensive and can be easily mounted.

FIG. 6 is a perspective view showing a main part of a conventional housing structure, and FIG. 7 is an assembled sectional view showing the conventional housing structure. Reference numeral 11 denotes a housing (resin case) formed of a resin material and formed in a box shape by an injection molding method or the like to accommodate electronic components and the like, and 12 denotes a resin lid for covering the electronic components and the like accommodated in the resin case 11. It is. A part of the L-shaped bracket 33 (insertion piece 331) is inserted into the resin case 11, and the insertion concave portion 1 for fixing the resin case 11 and the L-shaped bracket 33 is provided.
11 are provided. Further, a fitting hole 16 into which the fitting claw 15 is fitted is provided at a position corresponding to the fitting claw 15 of the lid portion 12 on the side surface (two or four surfaces) of the resin case 11. The other part of the L-shaped bracket 33 is fixed to a vehicle or the like with screws or the like.

The insertion recess 111 is a box-shaped resin case 1
The bracket 33 is formed by a pair of hook-shaped protrusions 17 provided on one surface of one side surface, and the bracket 33 is held between the surface of the resin case 11 and the tip of the hook of the protrusion 17 to fix the resin case 11 and the bracket 33. are doing. Further, a conical projection 112 is provided in the insertion concave portion 111 of the resin case 11, and a circular locking hole 332 provided in the insertion piece 331 of the bracket 33 is provided so as to be fitted to each other in the mounted state. I have.

[0005] In the housing having the above-described structure, when it is mounted on a vehicle or the like, the insertion piece 331 of the bracket 33 is inserted into the insertion recess 111 of the resin case 11 in which the lid 12 is fitted as shown in FIG. It is inserted into the locking hole 332 until the locking hole 332 is locked. Then, by fixing the fixing piece of the bracket 33 to a vehicle or the like with screws or the like, the resin case 11 is attached to the vehicle or the like.

[0006]

However, when a force is applied to the fixing piece of the bracket 33 in the direction of arrow A in the above-described housing mounting structure, the side wall of the resin case 11 where the insertion recessed portion 111 is provided is indicated by arrow B. Open in the direction of resin case 1
1 is deformed. Further, when the force applied to the arrow A increases, the fitting claw 15 of the lid 12
6 and the lid 12 may come off.

An object of the present invention is to solve the above problems.

[0008]

According to a first aspect of the present invention, there is provided a housing comprising a main body having a mounting bracket fixed to a side surface thereof, and a lid covering an upper opening of the main body. A fitting portion that fits with the mounting bracket, a fixing portion provided on the bracket and fixing the bracket to the vehicle, and a fixing portion provided on a side of the bracket opposite to the fixing portion, and the bracket is attached to the main body portion. A cover portion that covers the lid portion when fixed, the fixing portion of the bracket, an insertion piece that stands upright between the cover portion and the fitting piece that fits with the fitting portion, and is provided on the lid portion. A projection provided on the cover, and an engagement hole into which the projection fits and engages when the bracket is fixed to the main body.

[0009]

[0010]

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view illustrating a housing structure according to a first embodiment of the present invention, and FIG. 2 is an assembled cross-sectional view illustrating the housing structure according to the first embodiment. 6 and 7 are denoted by the same reference numerals and description thereof will be omitted.

The resin case 11 has a T-shaped bracket 13
An insertion recess 111 for inserting the insertion piece 131 and attaching the resin case 11 and the bracket 13 is provided. The insertion recess 111 is constituted by a pair of hook-shaped projections 17 provided on one side surface of the box-shaped resin case 11, and the tip of the projection 17 is compressed and deformed when the bracket 13 is inserted, and the bracket 13 and the resin case are formed. A projecting piece 171 for strengthening the connection of No. 11 is formed. Further, the insertion piece 131 of the bracket 13 is
A conical projection 112 that is engaged with a circular engagement hole 132 provided on the side of the resin case 11 of the insertion recess 111 is provided.

The bracket 13 is formed of a sheet metal such as a steel material, and is formed into a T-shaped cross section by cutting and bending with a press or the like. The fixing piece 134 of the bracket 13 has a fixing hole 133 into which a screw or the like for fixing the resin case 11 to a vehicle or the like is inserted. Also, the bracket 13
The fitting piece 136 is formed with a fitting hole 135 that fits into the conical projection 121 provided on the resin lid 12.

As shown in FIG. 2, the housing having the above configuration is mounted on a vehicle or the like. As shown in FIG. 2, the insertion piece 131 of the bracket 13 is inserted into the insertion recess 111 of the resin case 11 in which the lid 12 is fitted. Locking hole 132 in 112
Until it locks. Thereby, the bracket 13
The fitting piece 136 of the fitting piece 136 is fitted along the lid 12 so that the fitting hole 135 of the fitting piece 136 fits into the protrusion 121 of the lid 12. Then, the fixing piece 134 of the bracket 13 is fixed to a vehicle or the like with a screw or the like, so that the resin case 11 is fixed.
Is attached to a vehicle or the like.

In this embodiment, the bracket 13 regulates the movement of the cover 12 in the detaching direction by the above-described structure.
Further, since the force applied to the resin case 11 is dispersed by the bracket 13, the deformation of the resin case 11 is suppressed, and the falling off of the lid 12 is prevented. In addition,
The protrusions 112 can be thermally welded to the brackets 13 as needed to more firmly fix them.

FIGS. 3A and 3B are sectional views showing a housing structure according to the second embodiment, wherein FIG. 3A shows a state before processing and FIG. 3B shows a state after processing. 6 and 7 are denoted by the same reference numerals and description thereof will be omitted. Reference numeral 31 denotes a resin case formed of a resin material and formed in a box shape by an injection molding method or the like to accommodate electronic components and the like, and 32 denotes a resin lid that covers the electronic components and the like accommodated in the resin case 31. Resin case 3
1, a plurality of claws 313 which are bent portions are provided at the end portions (two or four surfaces) of the side wall of the resin case 31.
An engagement hole 314 is formed in the inside of 13 at a position where it engages with a projection 321 provided on the lid 32 when the claw 313 is bent toward the lid 32. Also, the resin case 31
The insertion piece 331 of the L-shaped bracket 33 (the structure obtained by removing the fitting piece 136 from the T-shaped bracket 13 shown in FIG. 1)
Is inserted, and an insertion concave portion 311 for fixing the resin case 31 and the L-shaped bracket 33 is provided. The fixing piece 334 of the L-shaped bracket 33 is fixed to a vehicle or the like with a screw or the like.

The insertion recess 311 is constituted by a pair of hook-shaped protrusions 37 provided on one side surface of the box-shaped resin case 31, and the surface of the resin case 31 and the protrusion 37
Hold the bracket 33 with the tip of the hook of the resin case 31
And the bracket 33 are fixed. In addition, resin case 3
1 is provided with a conical projection 312 in the insertion recess 311, and a circular locking hole 3 is provided in the insertion piece 331 of the bracket 33.
32 are provided so as to fit each other in the mounted state.

As shown in FIG. 3 (b), the housing having the above structure is mounted on a vehicle or the like. As shown in FIG. Place. And the nail 3 of the resin case 31
13 is softened by heating and bent inward (toward the projection 321), and the engagement hole 314 of the claw 313 and the lid 32 are bent.
Is pressed down so that the projection 321 of the projection is engaged. Next, the insertion piece 331 of the bracket 33 is inserted into the insertion recess 311 of the resin case 31, and the locking hole 33 is inserted into the projection 312 of the resin case 31.
Insert until 2 locks. Then, by fixing the fixing piece 334 of the bracket 33 to a vehicle or the like with a screw or the like, the resin case 31 is attached to the vehicle or the like.

According to the present embodiment having the above-described configuration, the lid 32 and the resin case 31 are firmly fitted by the engagement of the engagement holes 314 and the projections 321. Even if a force is applied from above, the lid 32 and the resin case 31 can be prevented from coming off. FIG.
It is sectional drawing which shows the housing | casing structure which concerns on an Example, (a) has shown before processing, (b) has shown after processing. 6 and 7
The same reference numerals are given to the same components as those in FIG.

Reference numeral 41 denotes a resin case formed of a resin material and formed in a box shape by an injection molding method or the like and for accommodating an electronic component or the like. (Four sides). These claws 413 are formed at positions facing the projections 321 provided on the lid 32 when bent toward the lid 32.

The resin case 41 is provided with an insertion recess 411 for inserting the insertion piece 331 of the L-shaped bracket 33 and fixing the resin case 41 and the L-shaped bracket 33. The fixing piece 334 of the L-shaped bracket 33 is
It is fixed to a vehicle or the like with screws or the like. The insertion recess 411 is constituted by a pair of hook-shaped protrusions 47 provided on one side surface of the box-shaped resin case 41, and the bracket 33 is narrowed by the surface of the resin case 41 and the tip of the hook of the protrusion 47. And the resin case 41 and the bracket 33 are fixed. Further, a conical projection 412 is provided in the insertion recess 411 of the resin case 41, and the insertion piece 3 of the bracket 33 is provided.
31 is provided with a circular locking hole 332 so as to fit each other in the mounted state.

As shown in FIG. 4 (b), the housing having the above-described structure is mounted on a vehicle or the like. As shown in FIG. Place. And the claw 4 of the resin case 41
13 is softened by heating and bent toward the projection 321, and further, by pressing the softened claw 413 into the projection 321, the portion of the claw 413 in contact with the projection 321 is depressed and the claw 413 and the projection 321 are engaged. I do. Note that the heating temperature need only be such that a recess is formed by the projection 321, and the temperature does not need to be raised so that the fusion occurs. Next, the resin case 4
Insert piece 33 of bracket 33 into one insertion recess 411
1 is inserted into the protrusion 412 of the resin case 41 until the locking hole 332 is locked. And the fixing piece 3 of the bracket 33
By fixing 34 to a vehicle or the like with screws or the like, resin case 41 is attached to the vehicle or the like.

According to this embodiment having the above-described configuration, the lid 32 and the resin case 41 are firmly fitted by the engagement between the recess formed by the projection 321 and the projection 321. Even if a force is applied from the bracket 33, the lid portion 32 and the resin case 41 can be prevented from coming off. FIG. 5 is a configuration diagram illustrating a housing structure according to the fourth embodiment. 6, 7, and 3 are denoted by the same reference numerals, and description thereof is omitted.

Reference numeral 51 denotes a resin case formed of a resin material and formed in a box shape by an injection molding method or the like and for housing electronic parts and the like. The box-shaped resin case 51 has an inner wall portion 513 having a U-shaped cross section by bending a side wall portion on one side inward, and an extension piece 51 extending the original side wall surface.
4 to form an insertion recess 511 for fixing the L-shaped bracket 33. That is, the insertion recess 511
Is formed so that the insertion piece 331 of the bracket 33 is sandwiched and fixed by the inner wall portion 513 and the extension piece 514 of the resin case 51. In the insertion recess 511, a locking hole 332 provided in the insertion piece 331 of the bracket 33 is provided.
Is provided with a projection 512 that is locked to the projection. Further, a protruding piece 515 that is compressed and deformed when the L-shaped bracket 33 is inserted to strengthen the connection between the L-shaped bracket 33 and the resin case 51 is formed inside the distal end of the extension piece 514.

In order to attach the housing having the above structure to a vehicle or the like, the insertion piece 331 of the bracket 33 is inserted into the insertion recess 511 of the resin case 51 in which the lid 52 is fitted, and the engagement hole 332 is inserted into the projection 512 of the resin case 51. Until it locks. The fixing piece 334 of the bracket 33 is fixed to a vehicle or the like by a screw or the like, so that the resin case 51 is fixed.
Is attached to a vehicle or the like.

According to the present embodiment having the above configuration, the inner wall portion 513 is formed inside the side wall portion of the resin case 51, and the insertion recess 511 is provided between the inner wall portion 513 and the extension piece 514. Since the side wall portion of 51 is strengthened, it is possible to prevent the lid portion 52 and the resin case 51 from coming off even when a force is applied from the bracket 33.

[0027]

As described in detail above, in the housing structure according to the present invention, the lid can be prevented from coming off due to the force applied from the bracket, and the housing structure can be resistant to deformation of the main body. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a housing structure of a first embodiment according to the present invention.

FIG. 2 is an assembled sectional view showing a housing structure according to the first embodiment.

FIG. 3 is a cross-sectional view illustrating a housing structure according to a second embodiment.

FIG. 4 is a sectional view showing a housing structure according to a third embodiment.

FIG. 5 is a configuration diagram illustrating a housing structure according to a fourth embodiment.

FIG. 6 is a perspective view showing a main part of a conventional housing structure.

FIG. 7 is an assembled sectional view showing a conventional housing structure.

[Explanation of symbols]

 11 resin casing 111 insertion recess 112 projection 12 lid 121 projection 13 bracket 131 insertion piece 132 locking hole 133 ... fixing hole 134 ... fixing piece 135 ... fitting hole 136 ... fitting piece 15 ... fitting claw 16 ... fitting hole 17 ... protruding part 171 ..Protrusions

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-49-2056 (JP, A) JP-A 62-134281 (JP, U) JP-A 5-58922 (JP, U) JP-A 5- 62448 (JP, U) Jinsho 44-23525 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60R 11/02 H05K 5/02 H05K 7/12

Claims (1)

(57) [Claims] 1. A housing comprising: a main body having a mounting bracket fixed to a side surface thereof; and a lid covering an upper opening of the main body, wherein the mounting bracket is provided on a side wall of the main body. A fitting portion fitted to the bracket; a fixing portion provided on the bracket, for fixing the bracket to the vehicle; provided on the opposite side of the fixing portion of the bracket, when the bracket is fixed to the main body portion, A cover portion that covers the lid portion, the fixing portion of the bracket, an insertion piece that is erected between the cover portion and fits with the fitting portion; and a projection provided on the lid portion; A housing structure, comprising: an engaging hole provided on the cover portion, wherein the projection is fitted and engaged when the bracket is fixed to the main body portion.