DE102013222851A1 - Mounting structure for an electronic unit - Google Patents

Abstract

A case of the electronic unit includes: a case main body; a rectangular parallelepiped protrusion protruding from a side surface of the case main body; spring members extending from the side surfaces, and a locking portion 52 provided on the other side surface. The housing of the electrical connection box includes: a vertical wall on which an insertion portion is formed; and a lock receiving portion. When the projection and the spring member are inserted into the insertion portion and the electronic unit is rotated around the projection, an upper surface of the projection contacts an inner surface of the insertion portion, the spring member elastically contacts an inner surface of the insertion portion, and the lock portion engages with the lock receiving portion fix the electronic unit on the upper surface of the electrical connection box housing.

Description

Cross-reference to related applications

This application is based on the Japanese Patent Application No. 2012-248402 , the contents of which are hereby incorporated by reference.

Technical area

The present invention relates to a mounting structure for an electronic unit, which is designed for mounting the electronic unit on an upper surface of a housing of an electrical connection box.

State of the art

11 FIG. 12 is a perspective view showing a conventional electronic-unit fixing structure and a perspective view showing a state in which the electronic unit is half-mounted on an upper surface of a housing of an electrical connection box. FIG. 12 is a sectional view showing a shaft portion and a shaft receiving portion of the in 11 represents a mounting structure for an electronic unit shown.

As in 11 is an attachment structure for an electronic unit 301 a structure for mounting an electronic unit 303 on an upper surface of a housing 304 an electrical connection box 302 , A pair of shaft sections 307 is on a side surface of a housing 305 the electronic unit 303 intended. A locking section 352 is on the other side surface of the case 305 intended. The housing 304 of electrical connection box 302 has a pair of shaft receiving sections 306 to which the pair of shaft sections 307 is rotatably mounted, and a Arretierungsaufnahmeabschnitt 342 , in the Arretierungsabschnitt 352 engages, on.

If, as in 12 shown the shaft sections 307 in the shaft receiving sections 306 be introduced, and the electronic device 303 around the shaft sections 307 is rotated, the shaft sections touch 307 in this mounting structure for an electronic unit 301 the inner surfaces of the shaft receiving portions 306 , and the locking portion 352 engages the detent receiving portion 342 one, causing the electronic unit 303 on an upper surface of the housing 304 of electrical connection box 302 is mounted.

Furthermore, in each case one end face of the shaft section 307 and an inner surface of the shaft receiving portion 306 with ribs 371 . 361 provided a rattle between the electrical connection box 302 and the electronic unit 303 prevent this by perpendicular to each other during assembly of the electronic unit 303 on the electrical connection box 302 (see PTL 1) interlock.

CITATION

patent literature

• PTL 1: JP, A, 2008-172892

Summary of the invention

Technical problem

In the conventional mounting structure for an electronic unit 301 are a pair of wave sections 307 and a pair of shaft receiving portions 306 provided so that two spaces for the shafts and the shaft receiving portions are required, and there is a problem that the mounting structure for an electronic unit 301 big fails. Further, the ribs are 371 . 361 to avoid rattling on both the shaft sections 307 as well as on the shaft receiving sections 306 provided so that the shaft sections 307 and the shaft receiving sections 306 have a complex shape, and a mold for their manufacture complicates, whereby the problem arises that the cost of the mounting structure for an electronic unit 301 Mounting increase.

Accordingly, it is an object of the present invention to provide a mounting structure for an electronic unit, which has a simple structure and is small in size.

the solution of the problem

To achieve the object, according to a first aspect of the present invention, there is provided a mounting structure for an electronic unit for mounting an electronic unit on an upper surface of an electrical connection box, wherein a housing of the electronic unit comprises:
a component housing case main body;
a rectangular, parallelepiped protrusion protruding from a side surface of the case main body;
a spring member extending from a side surface of an opposite side surface pair of the projection, and
a locking portion provided on the other side surface opposite to a side surface,
wherein a housing of the electrical connection box comprises:
a vertical wall extending perpendicular to and over the upper surface; and
a latching receiving portion opposite to the vertical wall,
wherein an insertion portion formed on the lock receiving portion side for inserting the projection and the spring member is formed on the vertical wall, and
wherein, when the projection and the spring member are inserted into the insertion portion, and the electronic unit is rotated around the projection, an upper surface of the projection abuts an inner surface of the insertion portion, the spring member elastically contacts an inner surface of the insertion portion, and the locking portion is engaged in the detent receiving portion engages to mount the electronic unit on the upper surface of the housing of the electrical connection box.

According to a second aspect of the present invention, there is provided the electronic-unit mounting structure previously described in the first aspect, wherein the electrical connection box and the electronic unit each include terminals arranged to connect with each other when the electronic unit is around the projection is turned.

According to a third aspect of the present invention, there is provided the electronic-unit mounting structure previously described in the first or second aspect, wherein a plurality of convex portions are provided to prevent rattling of the electronic unit on the upper surface of the housing of the electrical connection box ,

Advantageous Effects of the Invention

According to the invention described in the first aspect, there is provided a mounting structure for an electronic unit for mounting an electronic unit to an upper surface of an electrical connection box.
wherein a housing of the electronic unit comprises:
a component housing case main body;
a rectangular, parallelepiped protrusion protruding from a side surface of the case main body;
a spring member extending from a side surface of an opposite side surface pair of the projection, and
a locking portion provided on the other side surface opposite to a side surface,
wherein a housing of the electrical connection box comprises:
a vertical wall extending perpendicular to and over the upper surface; and a locking wall receiving portion opposite to the vertical wall,
wherein an insertion portion formed on the lock receiving portion side for inserting the projection and the spring member is formed on the vertical wall, and
wherein, when the projection and the spring member are inserted into the insertion portion, and the electronic unit is rotated around the projection, an upper surface of the projection abuts an inner surface of the insertion portion, the spring member elastically contacts an inner surface of the insertion portion, and the locking portion is engaged in the detent receiving portion engages to mount the electronic unit on the upper surface of the housing of the electrical connection box.

Thus, the mounting structure for an electronic unit can be provided which has a simple structure and is small in size.

According to the invention described in the second aspect, since the electrical connection box and the electronic unit respectively include terminals arranged to connect to each other when the electronic unit is rotated around the projection, a connection operation of the terminals in connection with a mounting operation of electronic unit.

Since a plurality of convex portions are provided to prevent rattling of the electronic unit on the upper surface of the housing of the electrical connection box, according to the invention described in the third aspect, rattling in a vertical direction of the electronic unit can be surely prevented.

These and other objects, features and advantages of the present invention will become more apparent upon reading the following detailed description taken in conjunction with the accompanying drawings.

Brief description of the drawings

1 FIG. 10 is a plan view showing an electronic-unit fixing structure according to an embodiment of the present invention, and a plan view showing a state in which an electronic unit is mounted on an upper surface of a housing of an electrical connection box; FIG.

2 is a perspective view, only the in 1 represents electrical connection box shown;

3 is a perspective view that only the in 1 represents electronic unit shown;

4 is an enlarged view of a region A in FIG 3 ;

5 is a sectional view taken in the 1 shown mounting structure for an electronic unit;

6 is an enlarged view of an area in 5 ;

7 is a sectional view showing a state in which the in 1 shown electronic unit is mounted in half on the upper surface of the housing of the electrical connection box;

8th is a sectional view showing a state in which the in 7 shown electronic unit is mounted on the upper surface of the housing of the electrical connection box;

9 is an enlarged view of a region C in FIG 7 ;

10 is an enlarged view of a region D in FIG 8th ;

11 FIG. 12 is a perspective view illustrating a conventional electronic-unit fixing structure, and a perspective view showing a state in which the electronic unit is half-mounted on an upper surface of a housing of an electrical connection box; FIG. and

12 FIG. 12 is a sectional view showing a shaft portion and a shaft receiving portion of FIG 11 shown, mounting structure for an electronic unit.

Description of the embodiments

A fixing structure for an electronic unit according to an embodiment of the present invention will be described with reference to FIGS 1 to 10 explained.

One in the 1 shown mounting structure for an electronic unit 1 is a structure for mounting an electronic unit 3 on an upper surface 40a a housing 4 an electrical connection box 2 ,

When attaching the electronic unit 3 on the upper surface 40a of the housing 4 of electrical connection box 2 becomes the electronic unit 3 with the electrical connection box 2 electrically connected. As in the 3 to 8th shown, this electronic unit includes 3 : a substrate 16 , Connections 17 . 18 . 19 that with the substrate 16 are connected, and a housing made of synthetic resin 5 to record the same.

The housing 5 comprising: a plate-shaped housing main body 50 , a rectangular, parallelepiped projection 51 that made a side surface 50c of the housing main body 50 sticking out, a pair of feather parts 53 (please refer 4 to 6 ), each extending from an opposite pair of side surfaces 51b . 51c of the projection 51 extend; and a locking portion 52 on the other side surface 50d opposite one side surface 50c of the housing main body 50 is provided.

The pair of feather parts 53 extends from the side surfaces 51b . 51c of the projection 51 in the direction of the one side surface 50c of the housing main body 50 , and moves away towards the one side surface during the approach 50c further away from the side surfaces 51b . 51c , As in 6 shown, prevents the pair of spring parts 53 a rattling of the electronic unit 3 in an arrowed Z direction by closing a gap between the projection 51 and an introduction section described later 61 ,

Further, a reference numeral designates 50a in the 3 an upper surface of the case main body 50 , a reference numeral 50b a lower surface of the case main body 50 , and denote reference numerals 50e . 50f Side surfaces of the housing main body 50 , The connection 17 protrudes from the side surface 50e inside, the connection 19 protrudes from the side surface 50f inside, and the connection 18 protrudes from the lower surface 50b out. Further, the connection is 18 for connection with a connection 14 of electrical connection box 2 educated.

The electrical connection box 2 is mounted on a motor vehicle and supplies the electronic devices on the motor vehicle with electrical energy and signals. Further, in the present invention, a terminal block (or a terminal box), a fuse block (or a fuse box), and a relay block (or a relay box) are collectively referred to as the electrical junction box.

As in the 2 and 5 to 8th shown includes this electrical junction box 2 : a substrate 10 ; a fuse 11 and a relay 12 that on the substrate 10 are mounted; connections 13 . 14 . 15 that with the substrate 10 are connected; and a housing made of synthetic resin 4 to record the same.

The housing 4 comprising: a rectangular box-shaped housing main body 40 ; a vertical wall 6 standing on a side surface side 40c of the housing main body 40 is provided and perpendicular to (in an arrowed Y-direction) and over the upper surface 40a of the housing main body 40 extends; and a detent receiving portion 42 on the other side surface 40d opposite the one side surface 40c of the housing main body 40 is provided. The vertical wall 6 and the lock receiving portion 42 are arranged opposite each other. Further, the locking portion 52 for engaging the detent receiving portion 42 educated.

Further, a designated in the 2 shown reference number 40a an upper surface of the case main body 40 , a reference numeral 40b a lower surface of the case main body 40 , and denote reference numerals 40e . 40f Side surfaces of the housing main body 40 , The connection 13 protrudes from the side surface 40e to the outside, the connection 15 protrudes from the side surface 40f to the outside, and the connection 14 protrudes from the upper surface 40a up. Further, the connection is 14 for the connection of a connection 18 the electronic unit 3 educated. Further, the upper surface is 40a with a variety of convex areas 41 to prevent rattling of the electronic unit 3 formed in a direction provided with an arrow Y-direction.

An on the Arretierungsaufnahmeabschnitt 42 open trained introduction section 61 for introducing the projection 51 and the pair of feather parts 53 are on the vertical wall 6 educated. As in the 7 to 10 Shown is an interior of the insertion section 61 from above the upper surface 40a below the upper surface 40a and communicates with an interior of the case main body 40 ,

As in the 7 and 9 will be shown during assembly of the electronic unit 3 on the upper surface 40a of the housing 4 of electrical connection box 2 while the electronic unit 3 slanted, the projection 51 and the pair of spring pieces 53 in the introductory section 61 introduced, and then the electronic unit 3 for the lead 51 turned. This is how, as in the 8th and 10 shown an upper surface 51a of the projection 51 on an inner surface 61a of the introductory section 61 on, touches the pair of feather parts 53 the inner surfaces 61b . 61c of the introductory section 61 elastic (see 5 and 6 ), and engages the Arretierungsabschnitt 52 in the lock receiving portion 42 one to the electronic unit 3 on the upper surface 40a of the housing 4 of electrical connection box 2 to assemble. If the electronic unit 3 is rotated, are also the connections 14 . 18 , as described above, interconnected.

This way lies in the electronic unit 3 on the upper surface 40a of the housing 4 of electrical connection box 2 is attached, the upper surface 51a of the projection 51 on the inner surface 61a of the introductory section 61 on, and the bottom surface 50b of the housing main body 50 lies at the convex areas 41 the upper surface 40a of the housing main body 40 , thereby preventing rattling in the arrowed Y direction. Further, as the pair of spring parts 53 the inner surfaces 61b . 61c of the introductory section 61 Elastic touches, a rattling of the electronic unit 3 prevented in a direction provided with an arrow Z direction. Further, since the locking portion 52 in the lock receiving portion 42 engages, a rattling of the electronic unit 3 prevented in an arrowed X-direction.

Because the pair of feather parts 53 from the side surfaces 51b . 51c of the projection 51 extends and the convex area 41 on the upper surface 40a of the housing 4 are provided, according to the above-described mounting structure for an electronic unit 1 the rattling prevents, without the forms of the projection 51 and the introductory section 61 to complicate. Further, as the forms of the projection 51 and the introductory section 61 are simply formed, the molds for producing the same can also be easily formed. Further saves the mounting structure for an electronic unit 1 Place, in addition to the simple forms of projection 51 and the introductory section 61 are provided alone.

Furthermore, according to the embodiment described above, the housing comprises 5 the pair of feather parts 53 extending from the opposing pair of side surfaces 51b . 51c of the projection 51 extends. However, the present invention is not limited thereto. The single feather part 53 may be at least one of the pair of side surfaces 51b . 51c extend.

The invention has been described in conjunction with what are presently considered to be the most practical and most preferred embodiments. However, the present invention is illustrative and not intended to be limited to the disclosed embodiments. Accordingly, those skilled in the art will recognize that the invention is intended to embrace all modifications and alternative arrangements within the spirit and scope of the invention as set forth in the appended claims.

LIST OF REFERENCE NUMBERS

1

Mounting structure for an electronic unit

2

electrical connection box

3

electronic unit

4

casing

5

casing

6

vertical wall

42

Arretierungsaufnahmeabschnitt

50

Housing main body

51

head Start

52

detent

53

spring part

61

introduction section

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• JP 2012-248402 [0001]

Claims (3)

A mounting structure for an electronic unit for mounting an electronic unit to an upper surface of an electrical connection box, wherein a housing of the electronic unit comprises: a component housing case main body; a rectangular, parallelepiped protrusion protruding from a side surface of the case main body; a spring member extending from a side surface of an opposite side surface pair of the projection, and a locking portion provided on the other side surface opposite to a side surface, wherein a housing of the electrical connection box comprises: a vertical wall extending perpendicular to and over the upper surface; and a latching receiving portion opposite to the vertical wall, wherein an insertion portion formed on the lock receiving portion side for inserting the projection and the spring member is formed on the vertical wall, and wherein, when the projection and the spring member are inserted into the insertion portion and the electronic unit is rotated about the projection, an upper surface of the projection abuts against an inner surface of the insertion portion, the spring member elastically contacts an inner surface of the insertion portion, and the locking portion is engaged in the detent receiving portion engages to mount the electronic unit on the upper surface of the housing of the electrical connection box. The mounting structure for an electronic unit according to claim 1, wherein the electrical connection box and the electronic unit each comprise terminals arranged to connect with each other when the electronic unit is rotated around the projection. An electronic-unit mounting structure according to claim 1 or claim 2, wherein a plurality of convex portions are provided to prevent rattling of the electronic unit on the upper surface of the housing of the electrical connection box.

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