JP3935038B2 - Auxiliary machine mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an auxiliary machine composed of electrical components such as a sensor mounted on an automobile or the like, and more particularly to an auxiliary machine mounting structure that can reduce the space for arranging an auxiliary machine on a mounted member to which the auxiliary machine is mounted.
[0002]
[Prior art]
As shown in FIG. 7, conventionally, an auxiliary device 100 such as a sensor mounted on an automobile or the like is connected to a connector fitting portion 102 of a main body 101 that houses a sensor board (not shown) and the like with a cable 112 of a harness. Electrical connection is made by attaching a connector 111 that accommodates the connected connection terminals. Since such an auxiliary machine 100 is required to have high waterproofness depending on the installation location, a sealing material such as silicon grease is injected into the main body 101 and the injection portion is completely covered by a cover 107 or the like. Waterproofing is applied. In addition, the connection portion between the connector 111 and the connector fitting portion 102 is waterproofed with a seal material or the like. In general, the auxiliary machine 100 having such a structure is attached and fixed to an attachment member 120 such as a panel using an attachment fixing member 121 such as an attachment clip (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-5-346461 (page 2-3, Fig. 1-4)
[0004]
However, in the auxiliary machine 100 having the above-described structure, the connector 111 is required for connection between the main body 101 and the cable 112. Therefore, it is necessary to secure a sufficient connection space in the direction of the arrow h1 in FIG. It is necessary to secure an arrangement space for the auxiliary machine 100 of the same level as the above. In addition, since the mounting and fixing member 121 is mounted and fixed to the mounted member 120 via the mounting and fixing member 121, a space for inserting and removing the mounting and fixing member 121 from the main body 101 in the direction of the arrow h2 in FIG. 7 is required. For this reason, the auxiliary machine 100 arrangement space will become large as a whole.
[0005]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a mounting structure for an auxiliary machine that can reduce the space for arranging the auxiliary machine on a mounted member to which the auxiliary machine is mounted. To do.
[0006]
[Means for Solving the Problems]
An attachment structure of an auxiliary machine according to the present invention is an attachment structure to an attached member of an auxiliary machine in which a plurality of auxiliary machines are directly connected to a cable that is covered with an insulating material and arranged in a plane. The mounting member includes a mounting hole for mounting the auxiliary machine. The auxiliary machine is connected to the wiring pattern of the board, on which the electronic component is mounted and a predetermined wiring pattern is formed, and to the cable. A connection terminal connected to at least one of the conductors, and a body portion whose tip can be fitted into the mounting hole, and an outer peripheral portion of the body portion attached to the tip of the body portion. A retainer that fits into the mounting hole; and a mold portion that seals a connection portion between the connection terminal of the main body portion and the conductor of the cable, and the main body portion of the auxiliary machine is mounted in the mounting hole of the mounted member. The retainer is attached from the opposite side. Has attached the auxiliary machine main body is attached to the accessory from the body attaching side of the auxiliary to the retainer is mounted and fixed, wherein the cable, the proximal end of the terminal portion is the main portion The conductor is connected to the connection terminal so as to face in the lateral direction, and is routed over a predetermined range from the proximal end side to the distal end side of the main body portion along the side portion of the main body portion, and the surface of the attached member It is wired in a state bent along the line .
[0007]
According to this invention, the auxiliary machine is attached to the retainer attached from the opposite side of the auxiliary machine body to the attachment hole formed in the attached member by attaching the main body part from the main body part attachment side. The cable is fixedly attached to the mounting member, and the conductor is connected to the connection terminal so that the end portion of the cable faces the base end side of the main body, and the base side of the main body from the base end to the front end along the side of the main body while being laid over a predetermined range to, is routed in a state bent along the surface of the member being attached because the attachment such as a conventional mounting clip to the body portion attachment side of the accessory of the attachment member It is not necessary to provide a space for inserting and removing the fixing member and a cable connection space such as a connector, and the space for arranging auxiliary equipment can be reduced as a whole.
[0008]
The retainer has a flange that engages with the opening peripheral edge of the mounting hole on the side opposite to the main body mounting side of the auxiliary machine, and a protrusion that engages with the opening peripheral edge of the mounting hole on the main body mounting side of the auxiliary machine. And an engagement protrusion that engages with the main body.
[0009]
In addition, the retainer preferably includes a flange portion that engages with an opening peripheral edge portion of the mounting hole on the side opposite to the main body portion mounting side of the auxiliary device, and an engagement protrusion that engages with the main body portion. It is preferable that the retainer is fixedly attached to the mounted member in a state in which both opening peripheral portions of the mounting holes of the mounted member are sandwiched between the flange portion of the retainer and the end portion of the main body portion attached to the retainer.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a partially omitted exploded perspective view of an auxiliary machine to which an auxiliary machine mounting structure according to an embodiment of the present invention is applied. FIG. 2 is a partial cross-sectional perspective view of a cable connected to the auxiliary machine. 3 is an exploded perspective view for explaining a mounting structure of an auxiliary machine according to an embodiment of the present invention, FIG. 4 is a cross-sectional view taken along line AA ′ of FIG. 3, and FIG. 5 is a cross-sectional view taken along line BB of FIG. 'Is a cross-sectional view.
[0011]
As shown in FIG. 1, a sensor 1 as an auxiliary machine includes a main body portion 11 made of, for example, a resin molded member, a substrate 12 accommodated in the main body portion 11, and a sensor portion 13 mounted on the substrate 12. A connection terminal 14 connected to the substrate 12, a retainer 20 attached to the distal end side of the main body 11, and a mold part (not shown) formed on the proximal end side of the main body 11. It is prepared for. The main body 11 includes a retainer fitting portion 15 in which the retainer 20 is fitted on the distal end side, a proximal end side connection portion 16 of the substrate 12 and the connection terminal 14 on the proximal end side, and the proximal end side connection portion 16 and the connection terminal. 14 is provided with an exposed connection portion 18 that exposes the terminal-side connection portion 17 between the conductor 4 of the cable 2 and the connection terminal 14 located on the opposite side via 14. In addition, when the retainer 20 is completely fitted to the retainer fitting portion 15, the retainer 20 is engaged with the engagement protrusion 21 formed on the retainer 20 to a part of the main body portion 11. An engagement piece 19 for locking and fixing is formed (note that the engagement protrusion 21 and the engagement piece 19 constitute a retainer engagement mechanism).
[0012]
On the other hand, the retainer 20 has a fitting hole 22 into which the retainer fitting portion 15 of the main body portion 11 is fitted, and an opening on the opposite side to the main body portion 11 attachment side of a mounting hole formed in a panel as a member to be attached which will be described later. A flange portion 23 that engages with the peripheral edge portion, and an engaging claw 24 that engages with the opening peripheral edge portion of the attachment hole on the attachment side of the main body portion 11 to fix the retainer 20 to the panel are configured. .
[0013]
As shown in FIG. 2, the cable 2 is made of, for example, conductors 4a, 4b, 4c, 4d, and 4e made of wire such as a round conductor made of Cu or Al, polyethylene terephthalate (PET), polyethylene naphthalate. Covered with an insulating coating 5 made of an insulating resin such as phthalate (PEN), polyimide (PI), and polyolefin (PO), and the insulating coatings 5 are connected to each other by a bridge portion 5a made of an insulating resin in the same manner as the insulating coating 5. It consists of a flat cable structure. The cable 2 may be, for example, a so-called flexible flat cable having a structure in which a conductor 4 made of a flat conductor is covered with an insulating coating 5 formed planarly by lamination or extrusion. A so-called wire harness bundled in a harness shape may be used.
[0014]
In the main body 11 of the sensor 1, the cable 2 has one cable terminal 2a (see FIG. 5) facing the base end side of the main body 11, and the conductor 4 in the vicinity of the cable terminal 2a (here, 4a, 4c, 4e) are connected to the pressure contact portion 14a at the base end portion of the connection terminal 14 in a direction orthogonal to the axial direction of each of the conductors 4a to 4e. Then, as shown in FIG. 4, the cable 2 is arranged from the proximal end side to the distal end side of the main body part 11 over a predetermined range along the side part of the main body part 11 in such a state that it is connected to the main body part 11. It is connected to the sensor 1 by being wired while being bent so that the axial direction of each of the conductors 4a to 4e is along the connecting direction of the connecting terminal 14 to the press contact portion 14a. Note that the connection terminal 14 is a pressure contact terminal in which the tip end of the pressure contact portion 14a is bifurcated and the conductor 4 is sandwiched between the branch portions to be in pressure contact.
[0015]
In the board-side connection part 16 located on the opposite side via the terminal-side connection part 17 and the connection terminal 14, the tip part 14b (see FIG. 4) of the connection terminal 14 penetrates the board 12, and then the board is formed by, for example, soldering or the like. 12 circuit portions (not shown) are connected.
[0016]
The exposed connection portion 18 of the main body portion 11 composed of the substrate side connection portion 16 and the terminal side connection portion 17 exposes the connection portion between the substrate 12 and the connection terminal 14 and the connection portion between the conductor 4 and the connection terminal 14. State. Since the exposed connection portion 18 is not waterproofed, it may become incompatible depending on the location of the sensor 1. Therefore, on the base end side of the main body part 11, the mold part 9 (9 a, 9 b) that includes the exposed connection part 18 integrally with the main body part 11 and seals the substrate side connection part 16 and the terminal side connection part 17. (See FIG. 3).
[0017]
The mold part 9 (9a, 9b) is formed by being hardened after filling with a mold resin made of hot melt resin or the like, and is integrally formed in accordance with the shape of the exposed connection part 18 of the main body part 11. Yes. Thus, by forming the mold parts 9a and 9b in the main body part 11, the exposed connection part 18 composed of the board side connection part 16 and the terminal side connection part 17 can be waterproofed, The connection state between the conductor 4 of the cable 2 and the pressure contact portion 14a of the connection terminal 14 in the terminal side connection portion 17 can be firmly held.
[0018]
Specifically, the sensor 1 configured as described above is attached in a state as shown in FIGS. First, the retainer 20 is attached to the panel 97 from the side opposite to the body 11 attachment side of the panel 97 so that the engaging claw 24 passes through the attachment hole 96. At this point, the retainer 20 is locked and fixed to the panel 97 because the flange portion 23 and the engaging claw 24 sandwich the both opening peripheral portions of the mounting hole 96. Next, by fitting the retainer fitting portion 15 of the main body portion 11 into the fitting hole 22 of the retainer 20, the engagement protrusion 21 of the retainer 20 and the engagement piece 19 of the main body portion 11 are engaged, The part 11 is locked and fixed to the retainer 20. Thus, the sensor 1 is attached and fixed to the panel 97. With such a structure, the sensor 1 can be securely and easily attached and fixed to the panel 97.
[0019]
As a method for attaching the sensor 1 to the panel 97, in addition to locking the retainer 20 to the attachment hole 96 with the flange portion 23 and the engagement claw 24, as shown in FIG. 6, the flange portion 23 of the retainer 20 is secured. And the end 11a formed in the main body 11 may be attached and fixed by sandwiching both peripheral edges of the mounting hole 96 of the panel 97.
[0020]
Further, the conductor 4 in the middle portion of the cable 2 may be connected to the terminal side connection portion 17 of the main body portion 11 of the sensor 1 instead of the conductor 4 in the vicinity of the terminal portion 2 a of the cable 2.
[0021]
【The invention's effect】
As described above, according to the present invention, the auxiliary machine is attached to the retainer attached from the side opposite to the main body mounting side of the auxiliary machine to the mounting hole formed in the mounted member from the main body mounting side to the main body section. Is attached and fixed to the member to be attached , and the conductor of the cable is connected to the connection terminal so that the terminal portion thereof is directed toward the base end side of the main body, and the cable of the main body along the side of the main body. while being laid over a predetermined range from the base end side to the distal side, the order is routed in a state bent along the surface of the mounting member, prior to the main body portion attachment side of the accessory of the attachment member Therefore, it is not necessary to provide an insertion / extraction space for the attachment fixing member such as the attachment clip and a connection space for the cable such as a connector, and the arrangement space for the auxiliary machine can be reduced as a whole.
[Brief description of the drawings]
FIG. 1 is a partially omitted exploded perspective view of an auxiliary machine to which an auxiliary machine mounting structure according to an embodiment of the present invention is applied.
FIG. 2 is a partial cross-sectional perspective view of a cable connected to the auxiliary machine.
FIG. 3 is an exploded perspective view for explaining an auxiliary machine mounting structure according to an embodiment of the present invention.
4 is a cross-sectional view taken along the line AA ′ of FIG. 3. FIG.
FIG. 5 is a cross-sectional view taken along the line BB ′ of FIG.
FIG. 6 is a cross-sectional view of an auxiliary machine to which an auxiliary machine mounting structure according to another embodiment of the present invention is applied.
FIG. 7 is a side view showing a part in section for explaining a conventional auxiliary machine mounting structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Sensor, 2 ... Cable, 4 ... Conductor, 5 ... Insulation coating, 9 ... Mold part, 11 ... Main-body part, 12 ... Board | substrate, 13 ... Sensor part, 14 ... Connection terminal, 15 ... Retainer fitting part, 16 ... Board side connection part, 17 ... Terminal side connection part, 18 ... Exposed connection part, 19 ... Engagement piece, 20 ... Retainer, 21 ... Engagement projection, 22 ... Fitting hole, 23 ... Gutter part, 24 ... Engagement claw .

Claims (3)

A plurality of auxiliary machines are covered with an insulating material and are attached to an auxiliary machine attached member directly connected to a cable arranged in a plane,
The mounted member includes a mounting hole for mounting the auxiliary machine,
The auxiliary machine is
A board on which an electronic component is mounted and a predetermined wiring pattern is formed, and a connection terminal that is connected to the wiring pattern of the board and is connected to at least one of the conductors of the cable. A body that can be fitted into the mounting hole;
A retainer that is attached to the tip of the main body and the outer peripheral part fits into the mounting hole of the mounted member;
A mold part for sealing a connection part between the connection terminal of the main body part and the conductor of the cable;
The retainer is attached to the attachment hole of the attached member from the side opposite to the main body part attachment side of the auxiliary machine, and the main body part of the auxiliary machine is attached to the attached retainer from the main body part attachment side of the auxiliary machine. the accessory are attached fixed Te,
In the cable, the conductor is connected to the connection terminal so that a terminal portion thereof faces in a proximal end direction of the main body portion, and is predetermined from the proximal end side to the distal end side of the main body portion along the side portion of the main body portion. Auxiliary equipment mounting structure, wherein the auxiliary equipment is routed in a state of being bent along the surface of the attached member while being routed over a range .   The retainer is engaged with an opening peripheral portion of the mounting hole that is opposite to the main body mounting side of the auxiliary device, and an opening peripheral portion of the mounting hole on the auxiliary device main body mounting side. The mounting structure according to claim 1, further comprising: a projecting portion that engages with the main body portion. The retainer includes a flange portion that engages with an opening peripheral edge portion of the mounting hole opposite to the main body mounting side of the auxiliary machine, and an engaging protrusion that engages with the main body portion.
The auxiliary machine is mounted and fixed to the mounted member in a state where both peripheral edges of the mounting holes of the mounted member are sandwiched between the collar portion of the retainer and the end portion of the main body mounted on the retainer. The mounting structure according to claim 1, wherein:

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