JP2018158662A - Housing for on-vehicle device and on-vehicle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing for an on-vehicle device which inhibits deformation.SOLUTION: A housing 10 includes: a housing body 22 in which an opening is formed on a predetermined surface; and a lid 24 which is fitted in the opening. The lid 24 is formed with projections 72 projecting in a direction in which the lid 24 is fitted in the opening. An outer wall part 48 enclosing an outer periphery of the lid 24 and a step part 56 which is formed at the inner side of the outer wall part 48 and locks the lid 24 are formed at the predetermined surface side. The step part 56 is formed with recessed parts 60 in which the projections 72 respectively fit. The projections 72 of the lid 24 fit in the recessed parts 60 formed at a side wall part of the housing body 22 to inhibit deformation of the housing body 22.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a housing, and more particularly, to a housing for an in-vehicle device and an in-vehicle device including the same.

  In-vehicle devices such as a navigation device, a drive recorder, and an ETC in-vehicle device are known. As this type of in-vehicle equipment, a box-shaped case for storing the sounding body and a lid for closing the opening of the case are provided, and a locking portion for locking the vehicle side mounting bracket is provided on the outer surface of the case. A sounding device is disclosed (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 6-81839

  There is a possibility that the casing of the in-vehicle device is deformed or damaged by vibration applied from the vehicle. If the opening into which the electronic component is inserted is deformed, a gap may be formed around the lid that closes the opening, and dust or water may enter, leading to failure of the in-vehicle device.

  This invention is made | formed in view of such a condition, The objective is to provide the housing | casing for vehicle equipment by which the deformation | transformation was suppressed.

  In order to solve the above problems, a case for an in-vehicle device according to an aspect of the present invention includes a case body having an opening formed on a predetermined surface and a lid fitted into the opening. The lid is formed with a protrusion protruding in the direction of fitting into the opening. On the predetermined surface side, an outer wall portion surrounding the outer periphery of the lid and a step portion formed on the inner side of the outer wall portion to lock the lid are formed. The step portion is formed with a recess into which the protrusion fits. According to this aspect, the deformation of the housing body is suppressed by fitting the projection of the lid into the recess formed in the side wall portion of the housing body.

  ADVANTAGE OF THE INVENTION According to this invention, the housing | casing for vehicle equipment by which the deformation | transformation was suppressed can be provided.

It is a perspective view of the vehicle equipment which concerns on the Example of this invention. It is a disassembled perspective view of the vehicle equipment which concerns on the Example of this invention. FIG. 3A is a perspective view of the housing body, and FIG. 3B is an enlarged front view of the housing body. 4 (a) is a rear view of the housing body, FIG. 4 (b) is a top view, FIG. 4 (c) is a front view, FIG. 4 (d) is a side view, and FIG. 4 (e) is a bottom view. It is. FIG. 5A is a perspective view of the front side of the lid, and FIG. 5B is a perspective view of the back side. 6 (a) is a rear view of the lid, FIG. 6 (b) is a top view, FIG. 6 (c) is a front view, FIG. 6 (d) is a side view, and FIG. 6 (e) is a bottom view. . Fig.7 (a) is a front view of a vehicle-mounted apparatus, FIG.7 (b) is AA sectional drawing of Fig.7 (a).

  In the following embodiments, the same components are denoted by the same reference numerals, and redundant description is omitted. Moreover, in each drawing, a part of component is abbreviate | omitted suitably for convenience of explanation.

  Before the embodiments of the present invention are specifically described, an outline will be described. The embodiment relates to a housing for storing electronic components and an in-vehicle device including the same. The housing includes a housing body having an opening formed on a predetermined surface and a lid fitted into the opening. The lid is formed with a protrusion protruding in the direction of fitting into the opening. On the predetermined surface side, an outer wall portion surrounding the outer periphery of the lid to be fitted, and a step portion formed inside the outer wall portion and locking the lid are formed. The step portion is formed with a recess into which the projection of the lid fits. The lid is fitted into the opening until it is fitted to the outer wall and locked to the step. When the lid is fitted into the opening, the projection of the lid fits into the recess of the stepped portion, and the side wall of the housing body is prevented from being deformed. Since the deformation of the opening is also suppressed, the entry of dust and water is reduced. Thereby, even if it mounts in a vehicle and a vibration is added, generation | occurrence | production of the deformation | transformation and damage of a housing | casing, a failure of vehicle equipment, etc. reduces. Examples will be specifically described below.

  In the following description, “parallel” and “vertical” include not only perfect parallel and vertical, but also include cases in which they deviate from parallel and vertical within an error range. Further, “substantially” means that they are the same in an approximate range.

  The structure of the in-vehicle device 100 will be described with reference to FIGS. 1 and 2. As shown in each figure, an orthogonal coordinate system including an x-axis, a y-axis, and a z-axis is defined. The x axis and the y axis are orthogonal to each other within the bottom surface of the in-vehicle device 100. The z axis extends in a direction perpendicular to the x axis and the y axis. Further, the positive directions of the x-axis, y-axis, and z-axis are each defined in the direction of the arrow in each figure, and the negative direction is defined in the direction opposite to the arrow. The positive direction side of the x axis may be referred to as “right side”, and the negative direction side of the x axis may be referred to as “left side”. In addition, the positive direction side of the y axis is “front side” or “front side”, the negative direction side of the y axis is “rear side” or “rear side”, and the positive direction side of the z axis is “upper side” or “top side” The negative direction side of the z-axis is sometimes referred to as “lower side” or “bottom side”. In addition, the attachment attitude | position to the vehicle of the vehicle equipment 100 is not limited to this.

  FIG. 1 is a perspective view of an in-vehicle device 100 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the in-vehicle device 100. The in-vehicle device 100 includes a housing 10 and a substrate 12 accommodated therein. The housing 10 includes a housing body 22 and a lid 24. The housing body 22 accommodates the substrate 12 that is inserted from the opening 20. The lid 24 closes the opening 20 of the housing body 22 in which the substrate 12 is placed. The board 12 is provided with electronic components such as a connector 14.

  The housing body 22 is formed in a rectangular parallelepiped box shape whose front surface is the opening 20. A fitting snap (also referred to as a bracket fitting portion) 26 and a rail 28 are formed on the upper surface as vehicle attachment portions. The fitting snap 26 and the rail 28 are attached to a vehicle side bracket fitting portion provided under the seat of the vehicle. Claws 30 that protrude outward are formed on the right side surface and the left side surface, respectively.

  The lid 24 is formed in a rectangular plate shape whose outer shape is substantially the same as that of the opening 20. A connector hole 32 through which a cable terminal connected to the connector 16 provided on the substrate 18 is passed is formed in the central portion. Arms 34 are provided at the left and right ends. The arm 34 is formed so as to extend from the front surface of the lid 24 to the front side, bend while expanding outward, and extend to the rear side. The arm 34 is formed with an engagement hole 36 that engages with the claw 30 of the housing body 22 in a state where the lid 24 is fitted in the opening 20. The lid 24 fitted into the opening 20 is fixed to the housing body 22 by an arm 34.

  3 and 4 are views showing the housing body 22. FIG. 3A is a perspective view, and FIG. 3B is an enlarged front view. 4 (a) is a rear view, FIG. 4 (b) is a top view, FIG. 4 (c) is a front view, FIG. 4 (d) is a side view, and FIG. 4 (e) is a bottom view.

  The housing body 22 includes a back wall portion 38, an upper side wall portion 40, a lower side wall portion 42, a right side wall portion 44, and a left side wall portion 46. In this specification, the back wall portion 38, the upper side wall portion 40, the lower side wall portion 42, the right side wall portion 44, and the left side wall portion 46 may be collectively referred to as “wall portions”. Moreover, the upper side wall part 40, the lower side wall part 42, the right side wall part 44, and the left side wall part 46 may be collectively referred to as “side wall part”. The wall portions are each formed in a rectangular flat plate shape. Each side wall portion is provided so as to stand perpendicular to the back wall portion 38 from each side of the back wall portion 38. The side wall portions are connected to each other to form a storage space for storing the substrate 12 and also form an opening 20.

  The opening 20 includes an outer wall part 48 and a step part 56. The outer wall 48 is a front side edge of the side wall and surrounds the outer periphery of the lid 24 fitted into the opening 20. The step portion 56 is formed inside the outer wall portion 48 of the upper wall portion 40 and the lower wall portion 42 and on the rear side from the end surface of the outer wall portion 48. The step portion 56 forms a step with the outer wall portion 48 and locks the lid 24 put in the outer wall portion 48. The step portion 56 is formed with a recess 60 into which a projection of the lid 24 described later is fitted.

  5 and 6 are diagrams showing the lid 24. FIG. FIG. 5A is a front perspective view, and FIG. 5B is a rear perspective view. 6 (a) is a rear view, FIG. 6 (b) is a top view, FIG. 6 (c) is a front view, FIG. 6 (d) is a side view, and FIG. 6 (e) is a bottom view.

  The lid 24 includes an arm 34, a lid body 70, a protrusion 72, and a rib 74. In the arm 34, the engagement hole 36 is engaged with the claw 30 of the housing body 22, and the lid 24 is fixed to the housing body 22. The lid body 70 is formed in a rectangular plate shape whose outer shape is substantially the same as the inner periphery of the outer wall 48 of the opening 20. A connector hole 32 is provided in the central portion. The protrusion 72 protrudes in the fitting direction in which the lid 24 is fitted into the opening 20 from the peripheral portion on the back surface of the lid main body 70 toward the rear side. The protrusion 72 is formed at a position corresponding to the concave portion 60 provided in the stepped portion 56 of the opening 20, and fits into the concave portion 60 in a state where the lid 24 is fitted into the opening 20. The protrusions 72 are formed at a total of four locations so as to surround the connector holes 32 at two locations on the upper wall portion 40 side, two locations on the lower wall portion 42 side. At least one projection 72 is formed at a position corresponding to the upper side wall portion 40 where the fitting snap 26 is provided. By fitting the protrusions 72 into the recesses 60 of the upper side wall portion 40, deformation of the upper side wall portion 40 that receives vibration from the vehicle via the fitting snap 26 can be suppressed. The length of the protrusion 72 in the fitting direction is smaller than the depth of the recess 60, and the length of the protrusion 24 is not in contact with the bottom of the recess 60 in the state where the lid 24 is fitted in the opening 20. Thereby, the step part 56 can latch the lid | cover 24 reliably so that it may mention later. The rib 74 is formed on the back side of the lid body 70. The rib 74 is provided so as to stand perpendicular to the back surface of the lid body 70. The rib 74 includes an upper wall support portion 76 along the inner surface of the upper wall portion 40 and a lower wall support portion 78 along the inner surface of the lower wall portion 42 in a state where the lid 24 is fitted into the opening 20.

  FIG. 7 is a diagram illustrating the housing 10 in which the lid 24 is attached to the housing body 22. Fig.7 (a) is a front view of the housing | casing 10, FIG.7 (b) is AA sectional drawing of Fig.7 (a).

  The lid 24 is fitted into the outer wall portion 48 of the opening 20 and is pushed toward the rear side of the housing body 22 until the peripheral portion on the back side comes into contact with the stepped portion 56 and is locked. When the lid 24 is fitted into the opening 20, the protrusion 72 of the lid 24 fits into the recess 60 of the stepped portion 56. Further, the arm 34 is engaged with the claw 30, and the lid 24 is fixed to the housing body 22.

  When the in-vehicle device 100 is mounted on a vehicle, vibration is applied to the housing main body 22 via the fitting snap 26 and the rail 28, but the protrusion 72 of the lid 24 fits into the concave portion 60, thereby It is possible to suppress the upper wall portion 40 from being distorted and deformed. Even if a force is applied in a direction in which the upper side wall portion 40 bends outward or inward, the protrusion 72 is prevented from fitting into the recess 60 of the upper side wall portion 40 and being deformed. Moreover, since the upper side wall support part 76 of the rib 74 provided in the lid | cover 24 supports from the lower side, the deformation | transformation which the upper side wall part 40 bends inside is suppressed. Similarly, the deformation of the lower side wall portion 42 is suppressed by the protrusions 72 that fit into the recesses 60 and the lower wall support portion 78 of the rib 74. The right side wall 44 and the left side wall 46 are prevented from being deformed when the side edges are sandwiched between the outer peripheral edge of the lid body 70 and the arm 34. A step 56 and a recess 60 may be formed on the right wall 44 and the left wall 46, and a protrusion 72 corresponding to the lid 24 may be formed. The deformation of the right side wall 44 and the left side wall 46 can be further suppressed.

  Steps D <b> 1 and D <b> 2 between the outer wall portion 48 and the step portion 56 shown in FIG. 7B are equal to or greater than the plate thickness of the lid body 70 that is the thickness of the lid 24. As a result, the outer peripheral edge of the lid 24 is covered with the outer wall portion 48, and dust and water can be prevented from entering the inside. The size of the step may be changed for each position of the side wall according to the amount of dust in the installation environment and the ease of getting wet. In the present embodiment, the step D1 of the upper side wall portion 40 is made larger than the step D2 of the lower side wall portion. Thereby, invasion of dust and water from the upper side wall 40 side can be further reduced.

  According to the embodiment of the present invention, deformation of the housing body 22 can be suppressed. Moreover, it can reduce that dust, water, etc. enter the housing | casing 10. FIG. Thereby, generation | occurrence | production of the failure | damage or failure of the vehicle equipment 100 can be reduced. In the present embodiment, the protrusion 24 is provided on the lid 24, and the recess 60 is formed on the side wall portion of the housing body 22. Since the projection 72 has a smaller installation area than the recess 60, a space for providing the lid 24 with other structures such as the connector hole 32 and the rib 74 is provided as compared with the case where the projection is provided on the housing body 22 and the recess 24 is provided on the lid 24. Can be taken big.

  In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each of those constituent elements or combinations of processing processes, and such modifications are also within the scope of the present invention. .

  For example, the configuration of the number, position, and shape of the recesses 60 of the housing body 22 and the protrusions 72 of the lid 24 is not limited to the configuration shown in the present embodiment as long as the deformation of the housing body 22 can be suppressed. In the present embodiment, the lid 24 is fixed to the housing body 22 by the arm 34, but is not limited thereto. A claw may be provided on the inner surface of the outer wall portion 48, and the lid 24 may be fixed by sandwiching the lid main body 70 between the claw and the stepped portion 56. In addition, a claw that protrudes outward may be provided on the outer peripheral edge of the lid body 70, and a recess in which the claw of the lid body 70 fits may be provided inside the outer wall portion 48 of the housing body 22. Even in these configurations, the lid 24 can be fixed to the housing body 22 and deformation of the housing body 22 can be suppressed.

  The outline of one embodiment of the present invention is as follows. The casing 10 according to an aspect of the present invention includes a casing main body 22 having an opening 20 formed on a predetermined surface, and a lid 24 fitted into the opening 20. The lid 24 is formed with a protrusion 72 that protrudes in the fitting direction into the opening 20. On the predetermined surface side, an outer wall portion 48 that surrounds the outer periphery of the lid 24 and a step portion 56 that is formed inside the outer wall portion 48 and engages the lid 24 are formed. The step portion 56 is formed with a recess 60 into which the protrusion 72 is fitted. According to this aspect, the projection 72 of the lid 24 fits into the recess 60 formed in the side wall of the housing body 22, so that deformation of the housing body 22 is suppressed.

  The steps D 1 and D 2 between the outer wall portion 48 and the step portion 56 may be equal to or greater than the thickness of the lid 24. In this case, since the outer periphery of the lid 24 fitted in the opening 20 is covered with the outer wall 48, the entry of dust, water, etc. can be reduced.

  The housing body 22 includes a plurality of side wall portions that form the opening 20 and a vehicle mounting portion provided on the side wall portion, and a step is provided on the side wall portion 40 on which the vehicle mounting portions 26 and 28 are provided. The part 56 and the recessed part 60 may be formed. In this case, it is possible to suppress deformation of the side wall portion 40 to which a greater force is applied than the other side wall portions via the vehicle attachment portion.

  The lid 24 includes a rib 74 that protrudes in the fitting direction into the opening 20, and the rib 74 is formed with side wall support portions 76 and 78 along the inner surfaces of the side wall portions 40 and 42 when fitted into the opening 20. May be. It can suppress that the side wall parts 40 and 42 deform | transform so that it may bend inside.

  Another aspect of the present invention is an in-vehicle device 100 including a housing 10 and electronic components housed in the housing 10. According to this aspect, deformation of the housing 10 is suppressed, and dust, water, and the like entering the inside are reduced, so that occurrence of a situation such as breakage or failure can be reduced.

  10 housing, 20 opening, 22 housing body, 24 lid, 40, 42, 44, 46 side wall, 48 outer wall, 56 step, 60 recess, 72 protrusion, 74 rib, 76, 78 side wall support, 100 In-vehicle equipment.

Claims (5)

A housing body having an opening formed on a predetermined surface;
A lid fitted into the opening;
With
The lid is formed with a protrusion protruding in the fitting direction into the opening,
On the predetermined surface side, an outer wall portion surrounding the outer periphery of the lid, and a step portion formed inside the outer wall portion and locking the lid are formed,
A housing for an in-vehicle device, wherein the step portion is formed with a recess into which the protrusion is fitted.   The in-vehicle device housing according to claim 1, wherein a step between the outer wall portion and the step portion is equal to or greater than a thickness of the lid. The housing main body includes a plurality of side wall portions that form the opening, and a vehicle attachment portion provided on the side wall portion,
The casing for an in-vehicle device according to claim 1 or 2, wherein the step portion and the concave portion are formed in a side wall portion where the vehicle attachment portion is provided. The lid includes a rib projecting in the fitting direction into the opening,
The case for in-vehicle devices according to claim 3, wherein a side wall support portion is formed on the rib along the inner surface of the side wall portion in a state of being fitted into the opening. A housing according to any one of claims 1 to 4,
Electronic components housed in the housing;
An in-vehicle device comprising:

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