CN102105333A - Circuit board unit supporting structure - Google Patents

Abstract

Provided is a circuit board unit supporting structure that can make external force applied to a circuit board unit hard to affect a circuit board. Attachment portions (25) for attaching a circuit board unit (1) to a member (cross-car beam (50)) to be attached to are provided at each of at least a pair of side edges facing each other in the longitudinal direction of an upper case (2). When the upper case (2) is attached to the member to be attached to, a gap is provided between the bottom surface of a lower case (3) and the surface of the member to be attached to on the bottom surface side of the lower case (3).

Description

The supporting construction of circuit substrate unit

Technical field

The present invention relates to the supporting construction of a kind of circuit substrate unit, the supporting construction mounting support of this circuit substrate unit is on vehicle and be built-in with the circuit substrate of long size.

Background technology

The supporting construction of circuit substrate unit in the past for example is arranged on the instrument carrier panel inside of vehicle along the overall width direction, inside in the structure that is formed by upwardly extending upper body and the lower case joint in overall width side is equipped with a plurality of wirning harnesses and circuit substrate, circuit substrate has and a plurality of conductive patterns (for example, with reference to patent documentation 1) that have the electric current littler than electric current in the electric wire to flow.

Patent documentation 1: TOHKEMY 2006-44587 communique (the 2nd～6 page, whole accompanying drawing)

But problem in the past is, for example when mounting support has the circuit substrate unit on the member for mount in vehicle side, the distortion of the circuit substrate unit that produces because of the external force that is produced when vehicle ' etc. can have influence on circuit substrate.Therefore, produce stress etc. and very undesirable at the weld zone of circuit substrate.

Summary of the invention

The present invention is conceived to the problems referred to above point and finishes, and its purpose is to provide a kind of can the reduction because of being applied to external force on the circuit substrate unit circuit substrate to be brought the supporting construction of the circuit substrate unit of dysgenic situation.

In order to achieve the above object, the invention provides the supporting construction of a kind of circuit substrate unit, this circuit substrate unit be under the state that circuit substrate is contained in the space that forms by upper body and lower case with this circuit substrate unit bearing on member for mount, it is characterized in that, on upper body and lower case, be provided with the engagement section, this engagement section is used for upper body and lower case are engaged and makes this both become one, at least on long dimensional directions, all be provided with installation portion on each edge part in the relative a pair of edge part in upper body, this installation portion is used for the circuit substrate unit is installed to member for mount, when being installed in upper body on the member for mount, form the space near between the surface of a side at the basal surface of lower case and basal surface member for mount and lower case.

Therefore, according to the present invention, can make to be applied to the difficult circuit substrate that influences of external force on the circuit substrate unit.

Description of drawings

Fig. 1 is the explanation block diagram of vehicle assembled state of the circuit substrate unit of expression embodiments of the invention 1;

Fig. 2 is the lateral plan of vehicle assembled state of the circuit substrate unit of expression embodiment 1;

Fig. 3 is the block diagram of the circuit substrate unit of embodiment 1;

Fig. 4 is the block diagram of decomposing state of the circuit substrate unit of expression embodiment 1;

Fig. 5 be expression embodiment 1 the circuit substrate unit omission the block diagram of lower face side part of a part of screw;

Fig. 6 is the cutaway view of the circuit substrate unit of embodiment 1;

Fig. 7 is the sectional block diagram of the circuit substrate unit of embodiment 1;

Fig. 8 is the birds-eye view of lower case of the circuit substrate unit of embodiment 1;

Fig. 9 is the local amplification stereogram of lower case of the circuit substrate unit of embodiment 1;

Figure 10 is the local amplification stereogram of lower case of the circuit substrate unit of embodiment 1;

Figure 11 is the amplification stereogram of triangle flank of the circuit substrate unit of embodiment 1;

Figure 12 is the lower case of circuit substrate unit of expression embodiment 1 and the block diagram of the installation constitution between the circuit substrate;

Figure 13 is the enlarged drawing of the lock structure between the engagement section of the engaging claw of upper body of circuit substrate unit of embodiment 1 and lower case;

Figure 14 is the exploded drawings of the state before the assembling of circuit substrate unit of expression embodiment 1;

Figure 15 is the exploded drawings of the assembling state before of expression upper body and lower case;

Figure 16 is the figure of the tightening state between the engagement section of the engaging claw of upper body of circuit substrate unit of expression embodiment 1 and lower case;

Figure 17 is the lower face side block diagram partly of the circuit substrate unit of expression embodiment 1;

Figure 18 is the local amplification inclinating view of the screw thread acceptance division part of upper body;

Figure 19 is the local enlarged front view of the screw thread acceptance division part of upper body;

Figure 20 is the local enlarged front view of the screw thread fixed part part of lower case;

Figure 21 is the local amplification inclinating view of the screw thread fixed part part of lower case;

Figure 22 is the upper body of circuit substrate unit of embodiment 1 and the partial enlarged drawing of the fastening part between the lower case;

Figure 23 is the upper body of circuit substrate unit of embodiment 1 and the local amplification view of the fastening part between the lower case;

Figure 24 is the figure that the operator's compartment assembly of circuit substrate unit that expression will be equipped with embodiment 1 is installed to the state of moving on the vehicle;

Figure 25 is the outstanding figure that holds state that is illustrated in the circuit substrate unit that produces in the operation of the circuit substrate unit that embodiment 1 is installed;

Figure 26 is the figure of twisted state of the circuit substrate unit of embodiment 1;

Figure 27 is the amplification stereogram of the unfavorable example of fastening structure between expression upper body and the lower case;

Figure 28 is that expression is installed in the state on the crossbeam with the circuit substrate unit of embodiment 1 and the figure of the state of polyurethane polyurethane material is not installed;

Figure 29 is that expression is installed in the state on the crossbeam with the circuit substrate unit of embodiment 1 and the figure of the state of polyurethane material is installed;

Figure 30 is the figure that expression loads on the transmit mode of load on the supporting construction of circuit substrate unit of embodiment 1;

Figure 31 is the figure of the transmit mode of expression and load when upper body be installed in unfavorable supporting construction crossbeam under lower case bear load different with embodiment 1;

Figure 32 is illustrated in the figure that is equipped with on the circuit substrate unit of embodiment 1 as the state of the electric wiring of wirning harness;

Figure 33 is the explanation block diagram of vehicle assembled state of the circuit substrate unit of expression embodiments of the invention 2;

Figure 34 is the figure of vehicle assembled state of the circuit substrate unit of expression embodiment 2;

Figure 35 is the block diagram of the circuit substrate unit of embodiment 2;

Figure 36 is the block diagram of decomposing state of the circuit substrate unit of expression embodiment 2;

Figure 37 is the block diagram during from the upper body of the circuit substrate unit of beneath embodiment 2;

Figure 38 is the birds-eye view of upper body of the circuit substrate unit of embodiment 2;

Figure 39 is the upward view of upper body of the circuit substrate unit of embodiment 2;

Figure 40 is the amplification view of installation flank of upper body of the circuit substrate unit of embodiment 2;

Figure 41 is the enlarged side view that the clamp sleeve of electric wiring is installed on the circuit substrate unit of embodiment 2;

Figure 42 is the cutaway view that the clamp sleeve of electric wiring is installed on the circuit substrate unit of embodiment 2;

Figure 43 is that expression is installed in the circuit substrate unit of embodiment 2 on the crossbeam and the figure of the state of electric wiring has been installed on the circuit substrate unit;

Figure 44 is the figure of state that indicates to be installed with the clamp sleeve of electric wiring on the installation flank of the circuit substrate unit of embodiment 2;

Figure 45 is illustrated in installation sleeve pipe clamp on the installation flank of circuit substrate unit of embodiment 2 and electric wiring is fixed on the figure that the state on the flank is installed;

Figure 46 is expression figure of unfavorable example during the holding electrical distribution for the circuit substrate unit of embodiment 2;

Figure 47 amplifies the structure lower clamp of expression Figure 46 and the figure of the snap portions between the flank is installed.

Description of reference numerals

1, circuit substrate unit

2, upper body

20, perimeter side walls portion

20a, notch

20b, wall portions (engaging recessed part, dislocation limiting part)

21, screw thread acceptance division

21a, tapped bore

22, engaging claw (the 1st bonded block)

22a, rake

22b, engaging face

23, flank is installed

24, installation portion

25, installation portion

26, cylinder flank (going up lateral holding portion, the 2nd bonded block)

27, triangle flank

27a, rectangular portion

27b, triangular part

27c, bottom

28, add competent structure portion (strengthening part)

281a～281k, strengthening rib (strengthening part)

282a～282n, strengthening rib (strengthening part)

283a～283m, strengthening rib (strengthening part)

284a～284f, strengthening rib (strengthening part)

29, press section

3, lower case

30, perimeter side walls portion

31, screw thread fixed part (engaging protuberance, dislocation limiting part)

31a, outshot

31b, a portion falls

31c, through hole

32, engagement section (the 1st bonded block)

32a, single armed part

32b, connecting bridge

33, protection of connector portion

34, maintaining part

35, support (following lateral holding portion, the 2nd bonded block)

35a, support

35b, support

36, locating dowel pin

37, maintaining part

4, circuit substrate

4a, circuit substrate

4b, circuit substrate

4c, flat cable

4d, adaptor union

41, knock hole

42, slotted hole

5, screw (the 2nd bonded block)

6, polyurethane material (padded coaming)

7, clamp sleeve

50, crossbeam (member for mount)

51, operator's compartment assembly

60, screw thread acceptance division

61a, slotted hole

61, screw thread fixed part

62, screw

71, electric wiring installation portion

72, umbrella portion

73, insertion section

74, axial region

101, electric wiring

102, (load transfer of expression wirning harness) line

A, gap

B, non-opposite face

C, opposite face

P, (overlapping) scope with crossbeam

T, (thickness of expression installation flank) size

H1, (setting of expression installation flank is provided with length) size

H2, (length of expression from opposite face C to the top that flank is installed) size

H3, (expression from the lower end of electric wiring to the distance of opposite face C) size

The specific embodiment

Below, the embodiment to the supporting construction of realizing circuit substrate of the present invention unit describes with reference to the accompanying drawings.

Embodiment 1

The structure of supporting construction of the circuit substrate unit of embodiments of the invention 1 at first, is described.

Fig. 1 is the explanation block diagram that is mounted the installing condition on the parts that the circuit substrate unit of expression embodiment 1 is installed in vehicle side.Fig. 2 is the upward view of vehicle assembled state of the circuit substrate unit of expression embodiment 1.

As shown in the drawing, the circuit substrate unit 1 of embodiment 1 is installed in the inside of instrument carrier panel on the crossbeam 50 and constitutes the operator's compartment assembly, and this crossbeam 50 is configured to extend on vehicle-width direction.The operator's compartment assembly is to be assembled in advance and to be installed to once on the car body of vehicle.And the power supply wiring on the left and right directions of vehicle, the part of signal wiring are born in circuit substrate unit 1.In addition, also a part of electronic component can be installed.In addition, crossbeam 50 is equivalent to member for mount of the present invention.

Fig. 3 is the block diagram of the circuit substrate unit 1 of embodiment 1.Fig. 4 is the block diagram of decomposing state of the circuit substrate unit 1 of expression embodiment 1.

Circuit substrate unit 1 be the upper body 2 that will be formed from a resin respectively and lower case 3 this up and down 2 parts assemble the structure that forms each other, portion holds circuit substrate 4 within it.4 pairs of circuit substrates for example various electrical equipment such as instrument, audio devices, various switches are powered.

The structure of upper body 2 at first, is described.

In upper body 2, on the both sides of its long size, be provided with a plurality of screw thread acceptance divisions 21 with predetermined space along each sidepiece, this screw thread acceptance division 21 is used for by fastening upper body 2 and the lower case 3 of assembling.

In addition, a plurality of positions in the both sides of upper body 2 alternately are provided with screw thread acceptance division 21 and engage claw 22, and this engaging claw 22 is used for upper body 2 and lower case 3 working fastenings.

And, on the upper surface of upper body 2, at the middle position of vehicle fore-and-aft direction (Width of upper body 2), be provided with installation flank 23 at a plurality of positions along long dimensional directions, this installation flank 23 is outstanding upward with cable, pipe method that other can be installed.

Then, be provided with the installation portions 24 of a plurality of tongue piece shapes of extending at 3 positions of the front of upper body 2 side (operator's seat side) downwards, and be provided with the installation portion 24 of a plurality of tongue piece shapes of extending to inboard (preceding grid side) at 2 positions of the inboard of upper body 2.These installation portions 24 are formed with the hole that is used to install, and are used for circuit substrate unit 1 is installed to crossbeam 50.

In addition, on the both ends, the left and right sides of upper body 2, be provided with respectively installation portion 25 to the tongue piece shape of left and right extension.These installation portions 25 also are formed with the hole that is used to install and are used for circuit substrate unit 1 is installed to crossbeam 50.

The structure of lower case 3 then, is described.

Lower case 3 is on the sidepiece of its long size, be provided with a plurality of screw thread fixed parts 31 at the screw thread acceptance division 21 cooresponding positions with upper body, this screw thread fixed part 31 is as the part that screw thread fixed part 31 is connected in the mode that overlaps with screw thread acceptance division 21 and fasten them together with screw 5.In addition, the concrete shape of these screw thread acceptance divisions 21, screw thread fixed part 31 etc. is narrated in the back.

In addition, a plurality of positions at the circumference of lower case 3, with the engagement section 32 that claw 22 cooresponding positions are provided with a plurality of コ word shapes (frame shape) that engages of upper body 2, the mode of this engagement section 32 hook to make its leap by engaging claw 22 bendings that make upper body 2 with engage claw 22 and fasten.In addition, the concrete shape of these engaging claws 22 and engagement section 32 etc. is narrated in the back.Engaging claw 22 and engagement section 32 are equivalent to the 1st bonded block of the present invention.In addition, in embodiment 1, show the engagement section 32 of コ word shape, but also can be other shapes, the cantilevered tongue piece for example is set on lower case 3, and the member that will be provided with claw in cantilevered tongue piece inboard is engaged to the claw shape of upper body 2 or the step of hole shape.

Fig. 5 is the lower face side block diagram of the circuit substrate unit 1 of embodiment 1, and has omitted a part of screw.

Left and right side at the basal surface of lower case 3 is provided with a plurality of adaptor union 4ds in the mode of exposing downwards, and this adaptor union 4d is used for being electrically connected between the equipment to the circuit substrate 4 that held and operator's compartment assembly.Adaptor union 4d installs in advance and is connected electrically on the circuit substrate 4.In addition, in Fig. 4, represent the installation site of adaptor union 4d on circuit substrate 4a, 4b with long and two-short dash line.

And, on lower case 3, be provided with the side walls enclose adaptor union 4d protection of connector portion 33 on every side that utilizes integratedly.

On the other hand, as shown in Figure 4, circuit substrate 4 is contained in the lower case 3, is to utilize flat cable 4c to be connected the structure of the left and right circuit substrate 4a that separates and circuit substrate 4b on the long dimensional directions in central authorities.

The maintenance structure of circuit substrate 4 then, is described.

Fig. 6 is the cutaway view of the circuit substrate unit of embodiment 1.Fig. 7 is the sectional block diagram of the circuit substrate unit of embodiment 1.Fig. 8 is the birds-eye view of lower case of the circuit substrate unit of embodiment 1.Fig. 9 and Figure 10 are the local amplification stereograms of lower case of the circuit substrate unit of embodiment 1.Figure 11 is the explanation block diagram of triangle flank of the circuit substrate unit of embodiment 1.

In the maintenance of circuit substrate 4 structure, on the cooresponding position of two end portions of lower case 3 and short dimensional directions circuit substrate 4, be provided with maintaining part 34 at a plurality of positions than the high step in bottom of the center side of lower case 3.As Fig. 8～shown in Figure 11, this maintaining part 34 is that a set part in a plurality of is configured in the inner side that with screw thread fixed part 31 corresponding positions, promptly is configured in screw thread fixed part 31.Thus, a part wherein also is configured in the corresponding position with adaptor union 4d.

In addition, shown in Fig. 6,7, on the bottom of the center side of lower case 3, be provided with lower surface with circuit substrate 4 at a plurality of positions and be bearing in support 35 with the roughly the same height of maintaining part 34.In addition, support 35 is equivalent to lateral holding portion down of the present invention.

In addition, on the part of support 35, form through hole, be made as the structure that the head that runs through screw 5 under the state of threaded portion at screw 5 falls to being arranged in this through hole and (it be made as support 35b.In the back it is described in detail).

Thus, in case circuit substrate 4 is positioned on the lower case 3, circuit substrate 4 by the two end portions of maintaining part 34 from the Width of the short size of below supporting, supports its middle body by support 35 just as shown in Figure 6 from the below.

On the other hand, upper body 2 is provided with cylinder flank 26 in the position that overlaps with support 35b.Cylinder flank 26 is the general cylindrical shape shape, has the not shown hole for the screw use in lower end side, is by the screw 5 fastening structures that its lower surface are connected to circuit substrate 4.In addition, cylinder flank 26 is equivalent to the lateral holding portion of going up of the present invention.In addition, cylinder flank 26, support 35 and the screw 5 that fastens them together are equivalent to the 2nd bonded block of the present invention.

And, be respectively equipped with triangle flank 27 in corresponding position, two ends with the short dimensional directions of circuit substrate 4.Triangle flank 27 is to be set to, and fastening by carry out screw at cylinder flank 26 and support 35 places, triangle flank 27 lower ends are securely by being pressed on the circuit substrate 4.

Like this, circuit substrate 4 is kept with method of clamping by the maintaining part 34 of the cylinder flank 26 of upside, triangle flank 27 and downside, support 35.

In addition, as shown in figure 11, triangle flank 27 has rectangular portion 27a, triangular part 27b, bottom 27c, bottom 27c has at the four sides with its size on the short dimensional directions of circuit substrate unit 1 and long dimensional directions along with the mode bevelled conical surface that shortens below close, forms the little shape of butt area with circuit substrate 4 butts.

In addition, triangle flank 27 is redefined for size relationship, and is fastening by the screw at cylinder flank 26 and support 35 places, makes 27c certain and circuit substrate 4 in bottom connect and pushes circuit substrate 4.

Then, further describe the maintenance structure of circuit substrate 4.

Figure 12 is the instruction diagram of the installation constitution of the lower case of circuit substrate unit of expression embodiment 1 and circuit substrate.In addition, triangle flank 27 is shown on a part.In addition, the 4b of circuit substrate shown in Figure 12, circuit substrate 4a also are same structures.

At the left and right place of lower case 3, on long dimensional directions, be arranged with a plurality of supports 35 (35b) respectively, be positioned at left and right support 35 sections triangular in shape of respectively arranging two ends in these supports 35, be expressed as support 35a.In addition, the upper surface from support 35a is extruded with locating dowel pin 36 upward.

In addition, a plurality of supports 35 in the above-mentioned support 35, between the support 35a at each arrangement two ends are made as circular section segment, are expressed as support 35b.Be extruded with the threaded portion of screw 5 upward from the upper surface of support 35b.

As shown in figure 12, be provided with knock hole 41 on circuit substrate 4, this knock hole 41 is used for running through for the locating dowel pin 36 at a position of the center side that becomes long dimensional directions.And, being provided with knock hole 41 a plurality of slotted holes 42 in addition, this slotted hole 42 is used for running through for the threaded portion of locating dowel pin 36 and screw 5.Slotted hole 42 is long hole shape on long size degree direction.

In addition, in Figure 11, having drawn triangle flank 27, but also can set accordingly with the adaptor union 4d (being provided with 2 side by side) of the long dimensional directions both sides shown in Figure 12 with the corresponding mode of adaptor union 4d at a position.

Then, describe the structure that the engagement section 32 of engaging claw 22 and lower case 3 of upper body 2 of the circuit substrate unit 1 of the foregoing description 1 fastens in detail.

As shown in figure 13, the engaging claw 22 of upper body 2 disposes long up and down and outstanding laterally protuberance 22c at left and right place.In addition, as shown in Figure 6, engaging claw 22 is provided with rake 22a in the bottom, this rake 22a so that the mode that engagement section 32 is easy to climb up on the engaging claw 22 tilt.In addition, on engaging claw 22 tops, upper surface is the plane and is step shape with angle and as the facial 22b of engaging, thereby tangles engagement section 32 reliably.

The engagement section 32 of lower case 3 forms the コ fonts, and being provided with at left and right place with its lower end is the bracketed part 32a of the cardinal extremity and the cantilever shape of extending upward, connects the left and right upper end of bracketed part 32a with connecting bridge 32b.Connecting bridge 32b is made as and engages the shape that claw 22 fastens.

In addition, following desired location relation: under the fastening state that the connecting bridge 32b of facial 22b of the engaging of engaging claw 22 and engagement section 32 connects, the cylinder flank 26 and the circuit substrate 4 of upper body 2 have predetermined gap, and the screw thread acceptance division 21 of upper body 2 has predetermined gap with the screw thread fixed part 31 of lower case 3.In addition, under this fastening state, triangle flank 27 is made as with circuit substrate 4 and concerns the position of butt gently.

Then, describe the screw thread acceptance division 21 of upper body 2 and the structure of the screw thread fixed part 31 of lower case 3 in detail.

Figure 18 is the local upward view that amplifies screw thread acceptance division 21 parts of expression upper body 2.Figure 19 is the local enlarged front view of screw thread acceptance division 21 parts of the upper body 2 during from beneath upper body 2 shown in Figure 180.Figure 20 is the local enlarged front view of screw thread fixed part 31 parts of lower case 3.Figure 21 is the local amplification inclinating view of screw thread fixed part 31 parts of lower case 3.

At first, begin to describe from upper body 2 sides.As Figure 18, shown in Figure 19, the screw thread acceptance division 21 of upper body 2 is the part of screw thread acceptance division 21 is projected into structures from the notch 20a that cutting perimeter side walls portion 20 forms to the side.As shown in figure 19, screw thread acceptance division 21 is arranged on the notch 20a, thereby receiving plane is positioned at the position that relies on the top than the lower end of perimeter side walls portion 20.

In addition, be provided with the wall 20b of perimeter side walls portion 20 formation of part of notch 20a and above-below direction, front direction approximate vertical.

In addition, on screw thread acceptance division 21, portion is provided with tapped bore 21a within it.In embodiment 1, tapped bore 21a is that the shape that the bottom connects and top does not connect makes the water droplet from the top can not enter the in-to-in structure.

On the other hand, as Figure 20, shown in Figure 21, lower case 3 is utilized the recess that holds circuit substrate 4 as the perimeter side walls portion 30 of the sidewall of its periphery in the upper surface side formation.When accommodating circuit substrate 4, perimeter side walls portion 30 is the structure that the frame shape is positioned at the outer circumferential side of circuit substrate 4.A plurality of positions in the perimeter side walls portion 30 of lower case 3, with the screw thread acceptance division 21 cooresponding positions of upper body 2 on be provided with and be used for the screw thread fixed part 31 on upper body 2, installed.Screw thread fixed part 31 is further given prominence to outer circumferential side from perimeter side walls portion 30 and is provided with.

Screw thread fixed part 31 forms the shape with linearly convex camber 31a that bloats laterally.And, forming the structure of the through hole 31c that falls a 31b of portion and run through for screw 5 be provided with circular depressions, this 31b of portion that falls is for the screw head that is used for carrying out from the bottom surface fastening screw 5 and packing ring one position of rising and falling.

In addition, convex camber 31a has the wall with above-below direction, front direction approximate vertical.But, be made as the draw taper of allowing shaping dies.

The assembled configuration of upper body 2 and lower case 3 then, is described.

Figure 22 is that the upper body 2 of the circuit substrate unit 1 of embodiment 1 is amplified instruction diagram with the part that lower case 3 is carried out fastening fastening part.Figure 23 is the local amplification view that upper body 2 and the lower case 3 of the circuit substrate unit 1 of embodiment 1 carried out fastening fastening part.

At this, as Figure 22, shown in Figure 23, upper body 2 and lower case 3 are carried out fastening fastening part and the screw thread fixed part 31 of lower case 3 are embedded on above-below direction among the notch 20a of perimeter side walls portion 20 of upper body 2.And, be to utilize screw 5 and fastening from the below between upper body 2 and the lower case 3 at its screw head cover upper gasket.

The head that carries out fastening screw 5 is sticked in the screw thread fixed part 31 of lower case 3 with packing ring, and its threaded portion spinning is in the tapped bore 21a of the screw thread acceptance division 21 of upper body 2.Thus, the basal surface of the screw thread acceptance division 21 of the upper surface of the screw thread fixed part 31 of lower case 3 and upper body 2 connects and tight joint.Under this state, as shown in figure 23, the wall portions 20b of the perimeter side walls portion 20 of upper body 2 becomes with the predetermined relative state in gap with the convex camber 31a of the screw thread fixed part 31 of lower case 3.In addition, screw thread fixed part 31 is equivalent to engaging protuberance of the present invention, and the wall portions 20b of the perimeter side walls portion 20 of upper body 2 is equivalent to engaging recessed part of the present invention.In addition, engaging protuberance and engaging recessed part are equivalent to dislocation limiting part of the present invention.

Carry out in the fastening fastening structure in upper body 2 and 3 of lower case, as shown in Figure 5, part in the end of left and right directions, the convex camber 31a by end side among the convex camber 31a of the screw thread fixed part 31 of lower case 3 is made as the shape with respect to front direction diagonally extending.

And the size of the notch 20a of the perimeter side walls portion 20 of the upper body 2 at corresponding position, shape also are made as the shape of inclined cut.Thus, the wall portions 20b of this position becomes the bevelled shape.

In other words, on the basal surface of circuit substrate unit 1, the convex camber 31a of 4 corner location and wall portions 20b tilt in the mode of 45 ° of chamfer shapes.

In addition, as above such mutual stack-mounted upper body 2 and lower case 3 are assembled on the crossbeam 50, in this case, as shown in figure 29, in the gap A of the lower surface of lower case 3 and crossbeam 50, are the tabular polyurethane material 6 that is equipped with as buffer component.

The effect of supporting construction of the circuit substrate unit 1 of embodiment 1 then, is described.

[carrying out the distribution of operator's compartment assembly, the effect of distribution]

As shown in figure 24, the circuit substrate unit 1 of embodiment 1 is installed on the crossbeam 50 of operator's compartment assembly 51, and the power transmission, the signal that carry out the left and right directions on the crossbeam 50 send and receive.Therefore, the inside of the instrument carrier panel of operator's compartment assembly 51 is simplified distribution and becomes the structure of saving very much the space.

In addition, as shown in Figure 3, on the upper surface of circuit substrate unit 1, on left and right directions, be provided with a plurality of installation flanks 23, therefore utilize the upper surface of circuit substrate unit 1, i.e. mounting supply line, signal wire (SW) and be pencil carry out distribution on left and right directions on this upper surface are being installed on the flank 23 fixedly supply line, signal wire (SW).

In addition, carry out the connection of power supply power supply, signal wire (SW), so the inside of the instrument carrier panel of operator's compartment assembly becomes very simple Wiring construction by a plurality of adaptor union 4d on the basal surface that is arranged on circuit substrate unit 1.

[inhibition is applied to external force on the circuit substrate unit to the effect of the influence of circuit substrate]

In the circuit substrate unit 1 of embodiment 1, become structure in the downside assembling lower case 3 of upper body 2.

When assembling circuit base board unit 1, at first, with circuit substrate 4 (4a, 4b) from the top mounting to lower case on 3.At this moment, as shown in figure 12, the locating dowel pin 36 of the upper surface of lower case 3 runs through the knock hole 41 and the slotted hole 42 of circuit substrate 4.Thus, the inside that surrounds in the perimeter side walls portion 30 by lower case 3 holds circuit substrate 4.

Under this state, the multi-point support that is undertaken by maintaining part 34 and support 35 by lower case 3 maintains the top position from the basal surface of lower case 3 with circuit substrate 4.With the periphery of maintaining part 34 supporting circuit substrates 4, with the Width central portion of support 35 supporting circuit substrates 4.And, at this moment, be installed on the circuit substrate 4 and the through hole part of the part that outstanding downwards adaptor union 4d surrounds in the protection of connector portion 33 by lower case 3 outside downwards outstanding.

About the connection of flat cable 4c (with reference to Fig. 4, Figure 14) that left and right circuit substrate 4 (4a, 4b) is electrically connected, both can under this state, carry out, also can before lower case 3, carry out in mounting.

Then, with respect to lower case 3 from top mounting upper body 2.At this moment, at first, the engagement section 32 that makes lower case 3 is between the left and right protuberance 22c that is arranged on engaging claw 22 of upper body 2, thus decision relative position (with reference to Figure 15) roughly.

And, aim at the position of engaging claw 22 and engagement section 32, and then make upper body 2 near lower case 3.Like this, the connecting bridge 32b of engagement section 32 climbs up the dip plane of the rake 22a of engaging claw 22 at leisure, and the lower end of the bracketed part 32a of engagement section 32 is to the cardinal extremity bending.

And in case upper body 2 is moved to the direction near lower case 3, the connecting bridge 32b of engagement section 32 just crosses engaging claw 22.Like this, the bracketed part 32a of engagement section 32 does not have crooked state owing to its elasticity returns to.Therefore, the connecting bridge 32b of engagement section 32 and the facial 22b of the engaging that engages claw 22 connect (with reference to Figure 13).Therefore, upper body 2 becomes the working fastening state that fastens in the mode more than the preset range of can not separating with lower case 3.

Under the working fastening state that is undertaken by this engaging, engaging claw 22 is stuck portion 32 on left and right directions bracketed part 32a maintains in the predetermined scope.

In addition, under this state, circuit substrate 4 maintained portions 34 and support 35 supporting lower surfaces, utilize locating dowel pin 36 with the position limit of left and right directions in preset range.And on the upper surface of circuit substrate 4, cylinder flank 26 is located at the position that separates predetermined gap on the above-below direction.In addition, triangle flank 27 becomes and the top end of circuit substrate 4 state of butt gently, lock-out circuit substrate 4.So, under the working fastening state that is undertaken by engaging claw 22 and engagement section 32, about circuit substrate 4 remains on respect to upper body 2, lower case 3, the position of preset range up and down.

Then, the circuit substrate unit 1 that so is in the working fastening state is spun upside down in the mode that the lower surface of lower case 3 becomes the top.

Circuit substrate 4 remains in up and down the preset range, thereby remains in the preset range similarly in switching process, after the upset.

If overturn, then make screw 5 pass the screw thread fixed part 31 of lower case 3 from the top and insert the screw thread acceptance division 21 of upper body 2 binding thread acceptance division 21 and screw thread fixed part 31.

Equally, make screw 5 run through the slotted hole 42 of circuit substrate 4, the mode that sandwiches circuit substrate 4 in order to the support 35b with the cylinder flank 26 of upper body 2 and lower case 3 is carried out fastening.Fastening about this screw 5 is owing to by the engaging of engaging claw 22 and engagement section 32, make and carry out the contraposition in preset range of fastening part, so need not be used for fastening special contraposition, as long as carry out the lashing operation of screw 5.

So, in the circuit substrate unit 1 of embodiment 1, make fastening direction only for from the direction of lower case 3 to upper body 2, inner thereby rainwater etc. can not immerse through fastening part.

Fastening by this, circuit substrate 4 is kept in the mode that sandwiches by the support 35 of the cylinder flank 26 of upper body 2, triangle flank 27, lower case 3 (35a, 35b), maintaining part 34.

In addition, fastening after, further reverse circuit base board unit 1 makes it become state shown in Figure 3.So having finished stack-mounted circuit substrate unit 1 is installed on the crossbeam 50 of vehicle.

When carrying out this installation, be installed on the crossbeam 50 by the installation portion 24,25 that will be arranged on the upper body 2, circuit substrate unit 1 is installed on the crossbeam 50.And under Fig. 1, installing condition shown in Figure 2, the lower surface of lower case 3 becomes the state that leaves from crossbeam 50, is promptly supporting the textural state that floats.

Figure 28 is that expression is installed in the state on the crossbeam with the circuit substrate unit 1 of embodiment 1 and the block diagram of the state of polyurethane material is not installed.Figure 29 is the block diagram that expression is installed in the circuit substrate unit 1 of embodiment 1 state on the crossbeam 50.

As shown in figure 28, the lower surface of the lower case 3 of circuit substrate unit 1 floats from the upper surface of crossbeam 50 on supporting construction, has spacing A between these members.And, in embodiment 1, as shown in figure 29, in the gap A of the lower surface of lower case 3 and crossbeam 50, be the tabular polyurethane material 6 that is equipped with as buffer component.

That is it is fastening and be assembled in the downside of upper body 2, to be installed in the lower case 3 of the circuit substrate unit 1 on the crossbeam 50.Therefore, lower case 3 does not support upper body 2 and circuit substrate unit 1.And, on the upper surface that is installed in the circuit substrate unit 1 on the crossbeam 50, as shown in figure 30, the inboard in Fig. 3, circuit substrate unit 1 shown in Figure 4 will be fixed on a plurality of positions of circuit substrate unit 1 as the electric wiring 101 of wirning harness with flank 23 is installed.In addition, preferably, the bottom of this electric wiring 101 is floated and is only depended on from the upper surface of upper body 2 flank 23 supportings are installed.

As mentioned above, in the circuit substrate unit 1 of embodiment 1, by the installation portion 24,25 of upper body 2 and utilize screw 5 to be installed on the crossbeam 50 of vehicle, electric wiring 101 is installed on the installation flank 23 of upper body 2.Thereby, for the circuit substrate unit 1 of embodiment 1, when on the crossbeam 50 that is installed to vehicle, owing to its operation is applied in external force.In addition, because the circuit substrate unit 1 that is installed on the crossbeam 50 is mounted electric wiring 101, so the load of electric wiring 101 further is applied to circuit substrate unit 1 as external force.

Therefore, as the transmit mode of the load of the circuit substrate unit of embodiment 1 shown in Figure 30, the load of electric wiring 101 such installation portion 24,25 (with reference to Fig. 3, Fig. 4) to the upper body 2 that supports circuit substrate unit 1 shown in arrow 102,102 transmits, but this load is not transmitted to circuit substrate 4 and lower case 3.In addition, the external force in the operation when the installation portion 24,25 with upper body 2 is installed on the crossbeam 50 also is applied to upper body 2, but does not transmit to lower case 3 and circuit substrate 4.

So, in the circuit substrate unit 1 of embodiment 1, lower case 3 is not born the supporting of electric wiring 101, at the downside that utilizes installation portion 24,25 to be installed in the upper body 2 on the crossbeam 50 lower case 3 is installed, thereby external force is not transmitted to circuit substrate unit 1, can not be subjected to the influence of external force.In addition, as shown in figure 29, circuit substrate unit 1 is provided with polyurethane material 6 between lower case 3 and crossbeam 50, but does not have the transmission of load between these members, can not occur because vibration, distortion and direct contact and produce the situation of wearing and tearing or 1 abnormal noise.

For the above-mentioned effect of the circuit substrate unit 1 of clear and definite embodiment 1, further append explanation.

Figure 31 is different with the present invention, and expression is installed to structure on the crossbeam 50 with lower case 3 with lower case 3.In this case, in case electric wiring 101 is installed on upper body 2, then its load is like that at first born load by upper body 2 shown in arrow 102.Then, owing to, push the mode of the part of circuit substrate 4 with this load downwards and be out of shape from the outstanding downwards cylinder flank 26 of the lower surface of upper body 2.This is very unfavorable situation.This be because, on circuit substrate 4, exist as weld zone or energising pattern with structure portion more weak part such as specific stress mutually, therefore to be used for the load of holding electrical distribution 101 are very unfavorable situations in the quilt transmission.

In addition, be installed on the crossbeam 50 owing to will directly hold the part of the lower case 3 of circuit substrate 4, the external force when therefore carrying out this operation similarly is delivered to circuit substrate 4.

In addition, in this case, cylinder flank 26 can not be fastened on the circuit substrate, in the back to this detailed description.And, even be made as the structure that cylinder flank 26 is not set, owing to lower case 3 is carried out stress that load bearing produces or the transmission of power also can have influence on circuit substrate 4.

To this, in the circuit substrate unit 1 of embodiment 1, as Figure 29, shown in Figure 30, the supporting construction ground that the lower case 3 that the circuit substrate unit 1 of electric wiring 101 is installed is not born electric wiring 101 is assembled on the upper body 2, and the external force of generation and load that holding electrical distribution 101 causes can not be delivered to circuit substrate 4 when therefore on crossbeam 50 circuit substrate unit 1 being installed.

In other words, in the circuit substrate unit 1 of embodiment 1, fastening by from the screw 5 of below sandwiches the mode lock-out circuit substrate 4 of circuit substrate 4 to utilize cylinder flank 26 and support 35.Thus, between the lower surface of lower case 3 and crossbeam 50, the space is set, thereby utilizes this space to prevent the lower surface of lower case 3 and crossbeam 50 because vibration of vehicle and butt and the abnormal noise that produces repeatedly.

In addition, circuit substrate self is sandwiched by resin component element and keeps, therefore with utilize directly fixing the comparing of hard ware, utilize its elasticity to wait and improved tolerances such as wearing and tearing, distortion with respect to vibration.

The fastening maintenance structure of the circuit substrate 4 of the circuit substrate unit 1 of this embodiment 1 is so to the more satisfactory structure of circuit substrate 4, upper body 2 utilizes installation portion 24,25 to be installed on the crossbeam 50 and lower case 3 do not bear electric wiring 101 supporting construction be installed to the downside of upper body 2, thereby realized reducing the dysgenic situation of external force to the circuit substrate unit.If implement this fastening maintenance structure with the structure of Figure 31, then the load meeting of electric wiring 101 is transmitted to circuit substrate 4 with higher ratio, and circuit substrate unit 1 is owing to external force is subjected to huger harmful effect.

In addition, in the circuit substrate unit 1 of embodiment 1, as mentioned above, lower case 3 is held circuit substrate 4, but does not bear the load of upper body 2, the load of electric wiring 101, therefore can make wall ratio upper body 2 thin.Shown in Fig. 3 waited, lower case 3 was the resin molded part of long size, therefore by forming than unfertile land and can forming operation well.Thus, can contribute for raising, the cost reduction of product precision.

And, in embodiment 1, can also obtain effect as described below.

In the circuit substrate unit 1 of embodiment 1, circuit substrate 4 replaces in the inside of the instrument carrier panel of vehicle and is used for along left and right direction supply electric power, carries the electric wire of signal and play a role.In this function, when bringing into play function, above the long dimensional directions of the energising pattern of circuit substrate 4 along about the crossbeam 50 of electric conductivity material is positioned at predetermined space, thereby obtain a part of function of shielding when making circuit substrate 4 replace shielding wires.

When the structure that is made as shown in figure 31, needs obtain utilize lower case 3 to bear the required full intensity of external force, the countermeasure of the thickness of needs increase lower case 3 etc.But in case thicken lower case 3, circuit substrate 4 will become big with the spacing of crossbeam 50.In case excessive with the spacing of crossbeam 50, a little less than function of shielding on the circuit substrate 4 just becomes very.

Also for this point, in embodiment 1, utilize installation portion 24,25 to be installed to upper body 2 on the crossbeam 50 and lower case 3 do not bear holding electrical distribution 101 load be installed to the downside of upper body 2, on textural and wall thickness, all can both establish thinly, this point is favourable.The spacing on the function of shielding with crossbeam 50 can be dwindled, best degree of freedom will be made as with respect to the position of crossbeam 50 thereby increased.

In addition, crossbeam 50 is structure members of operator's compartment assembly 51, has central flexible characteristic as a whole.At this moment, also make lower case 3 can not produce abutment portion with unsettled crossbeam 50 direct butts, utilize polyurethane material 6 to cushion, prevent to produce abnormal noise.In this, lower case 3 is positioned at the position that has the gap with respect to crossbeam 50, can dispose polyurethane material 6 between them, and this is favourable.

In addition, at the bending of crossbeam 50, upper body 2 is owing to this bending is affected, even but thicken with the intensity that improves upper body 2 etc., for the function of shielding that suppresses a part, external force this point that influences to circuit substrate, can carry out no problemly, this also is favourable.

In addition, in the circuit substrate unit 1 of embodiment 1, on the lower surface of the inboard in one-sided, Fig. 3, Fig. 4 of lower case 3 protection of connector portion 33 is set, a plurality of adaptor union 4d that are connected with circuit substrate 4 are exposed to the outside.In this case, utilize installation portion 24,25 that upper body 2 is installed on the crossbeam 50, lower case 3 not holding electrical distribution 101 load be assembled into the downside of upper body 2, therefore increase the degree of freedom of the desired location of adaptor union 4d, can be arranged on the position that does not overlap up and down with crossbeam 50.

Thus, after being installed to circuit substrate unit 1 on the crossbeam 50, the operation meeting that the adaptor union of vehicle arrangement is connected with adaptor union 4d becomes easy operation.

And, when carrying out this connection,, connect in the mode of inserting the adaptor union of vehicle arrangement from the below with respect to adaptor union 4d, therefore as circuit substrate 4, be subjected to power towards the top.Utilization is configured in from the cylinder flank 26 of the closer position of adaptor union 4d and triangle flank 27 and bears this power by upper body 2.Therefore, in the connection of adaptor union, there are not lower case 3 holding capacity and have influence on the situation of circuit substrate 4.Utilize upper body 2 high strength ground supporting circuit substrate 4 downwards, easy thereby the connection operation of adaptor union becomes.

[suppressing the effect of abnormal noise]

Figure 14 is the explanation exploded drawings of the preceding state of the circuit substrate unit assembling of expression embodiment 1.Figure 15 is the explanation exploded drawings of the state before expression upper body 2 is assembled with lower case 3.Figure 16 is the instruction diagram of the tightening state between the engagement section 32 of the engaging claw 22 of upper body 2 of circuit substrate unit of expression embodiment 1 and lower case 3.Figure 17 is the lower face side block diagram of the circuit substrate unit 1 of embodiment 1.

At first, when assembling upper body 2 and lower case 3, as shown in Figure 6, upper body 2 is engaged under the state of also working fastening with lower case 3 as the 1st initial engagement state, has predetermined gap between screw thread acceptance division 21 and the screw thread fixed part 31, and, on above-below direction, have predetermined gap between cylinder flank 26 and the circuit substrate 4 with respect to circuit substrate 4.Thereby triangle flank 27 and circuit substrate 4 are the state of butt gently.It fasteningly connects screw thread acceptance division 21 and screw thread fixed part 31 and state that circuit substrate 4 and cylinder flank 26 connect and push by what undertaken by screw 5 under as the state of ensuing the 2nd engagement state in fastening upper body 2 and lower case 3.And circuit substrate 4 becomes the state of pushing strongly with triangle flank 27.The bottom 27c of triangle flank 27 is in the shape of allowing elastic deformation, therefore allows stronger pushing.

Therefore, as shown in figure 16, the facial 21b of the engaging of the engaging claw 22 of upper body 2 is disengaged engaging of working fastening with the connecting bridge 32b of the engagement section 32 of lower case 3, becomes the state with clearance D.Therefore, be maintained the state that has each other the required sufficient gap of butt not between engaging claw 22 and the connecting bridge 32b, its result, can not produce engaging claw 22 with engagement section 32 because vibration and the situation of the abnormal noise of butt and generation repeatedly.

In addition, cylinder flank 26, triangle flank 27 that circuit substrate 4 keeps are kept elasticity by the state that is pressed on the circuit substrate 4 under the tightening state, therefore can not produce repeatedly the situation of butt and abnormal noise.

In addition, the maintaining part 34 that is arranged on the lower case 3 and supports the lower surface of circuit substrate 4 is provided with a part in the inboard of the screw thread fixed part 31 of lower case 3.Like this,, can obtain fastening force fully by being positioned near the fastening part, utilize cylinder flank 26, triangle flank 27 in the mode that sandwiches strongly by being pressed on the circuit substrate 4.Therefore, prevent following situation more reliably: between maintaining part 34 and circuit substrate 4, produce the gap, produce abnormal noise by butt repeatedly.

In addition, maintaining part 34 also disposes a part near the adaptor union 4d of circuit substrate 4.Thus, raising and cylinder flank 26, triangle flank 27 sandwich the substrate confining force that brings near adaptor union 4d, thereby the adaptor union when resisting adaptor union with vehicle arrangement fully and being connected to adaptor union 4d and going up inserts, inlay resultant force, makes can not produce higher stress at the weld zone of circuit substrate 4.

[alleviating the effect of the stress of circuit substrate]

Figure 25 is the instruction diagram of the state of moving into of the expression operator's compartment assembly 51 of moving into the circuit substrate unit 1 that embodiment 1 is installed in order to be installed on the vehicle.

Operator's compartment assembly 51 is for example instrument carrier panel, Steering gear, instrument, air-conditioning unit, air-conditioning duct, audio unit etc. to be carried out modularization and be installed in assembly on the car body.

When being installed to this operator's compartment assembly 51 on the car body, keeping the two ends of crossbeam 50 and move into.Like this, the weight of operator's compartment assembly 51 concentrates on the central authorities of crossbeam 50, produces crossbeam 50 even circuit substrate unit 1 and is bent into arc phenomenon.

Circuit substrate unit 1 accommodates circuit substrate 4 in inside.Thereby, with stress, bending, compare with the resin of upper body 2, lower case 3, on the soldering part to adaptor union 4d etc. of circuit substrate 4, circuit pattern part (these are called weld part) intensity a little less than, therefore be easy to produce unfavorable condition and become problem.Therefore in addition, upper body 2, lower case 3 are resin system, have to a certain degree flexible.

In this case, in the circuit substrate unit 1 of embodiment 1, pass through the butt and the tight joint of upper surface of screw thread fixed part 31 of the bottom surface face of screw thread acceptance division 21 of fastening upper body 2 and lower case 3, bear above-mentioned stress, suppress circuit substrate unit 1 bending.But this bending and fastening direction be quadrature roughly, and it is difficult therefore utilizing fastening force to suppress bending effectively.Therefore, with respect to fastening direction roughly for the direction of quadrature, promptly for the screw thread acceptance division 21 of upper body 2, the screw thread fixed part 31 of lower case 3 causes that with the outside of direction to the left and right the mode of dislocation moves, and produces further crooked.

At this moment, produce under the crooked bearing state in the tolerance range of the strain value of the weld part that exceeds circuit substrate 4, on the notch 20a of the perimeter side walls portion 20 of upper body 2, dispose the screw thread fixed part 31 of lower case 3, so the convex camber 31a of the screw thread fixed part 31 of the wall portions 20b of the perimeter side walls portion 20 of upper body 2 and lower case 3 is connecting on the direction of quadrature roughly with fastening direction.Thus, the dislocation between restriction upper body 2 and the lower case 3 suppresses circuit substrate unit 1 bending.

In other words, the stress of circuit substrate unit 1 bending that produces at the deadweight that causes like that as shown in figure 24 producing owing to operator's compartment assembly 51, utilize the fastening butt that brings between upper body 2 and the lower case 3 and the face of tight joint to bear this stress, and at upper body 2 will produce relative dislocation with 2 unit architectures up and down of lower case 3 formation when crooked producing, utilization is born this stress by the butt that takes place on the direction of dislocation at last lower member between the convex camber 31a of the screw thread fixed part 31 of the wall portions 20b of the perimeter side walls portion 20 of the upper body 2 of last lower member and lower case 3, therefore increase the area that bears above-mentioned stress effectively, alleviate stress.Thus, further suppress the bending of circuit substrate unit 1.Therefore, when carrying operator's compartment assembly 51, even the two ends of bearing cross beam 50 unfavorable condition can not take place yet.

In addition, circuit substrate 4 is the flat cable 4c junction circuit substrate 4a of utilization central authorities, the structure of 4b, therefore when carrying operator's compartment assembly 51, even produce bending in the central position of amount of bow maximum, also can not produce unfavorable condition on circuit substrate 4.

Further describe this situation.

Figure 25 is the outstanding figure that holds state of the circuit substrate unit 1 of expression embodiment 1.

The long size element that the circuit substrate unit 1 of embodiment 1 is close for the left and right sides length with the operator's compartment assembly of vehicle.Therefore, when being installed to installation work on the crossbeam 50, become sometimes by operator's hand, the outstanding state of holding that machine grips an end of circuit substrate unit 1 at the assembling procedure that carries out this circuit substrate unit 1 or with circuit substrate unit 1.Because action, its counteraction of this moment, as among Figure 25 with shown in the arrow like that, circuit substrate unit 1 can produce the bending of above-below direction.

Do not wish to occur this bending this point as mentioned above, in case carry out operation can not produce this bending or can not become outstanding mode of holding state, then can cause operating efficiency to descend, the cost of work machine increases.

In the circuit substrate unit 1 of embodiment 1, the convex camber 31a of the wall portions 20b of the perimeter side walls portion 20 of upper body 2 and the screw thread fixed part 31 of lower case 3 is roughly connecting on the direction of quadrature with fastening direction, thereby alleviate owing to action, its counteraction, reach the deadweight of circuit substrate unit 1 and make the crooked stress that produces, suppress crooked, therefore unfavorable condition can be do not produced, operation can be improved.

The words that further specify, in the assembled configuration and method of the circuit substrate unit 1 of embodiment 1, the inside that is surrounded as the frame shape in perimeter side walls portion 30 by lower case 3 with from above the mode of mounting hold circuit substrate 4, the upper set of the lower case 3 under this state is loaded onto portion's housing 2.On the lower surface of upper body 2, have the recess that is surrounded as the frame shape by perimeter side walls portion 20, therefore hold lower case 3 herein.At this moment, the screw thread fixed part 31 of lower case 3 is inserted among the notch 20a of perimeter side walls portion 20 of upper body 2, the engagement section 32 of lower case 3 is fastened with the claw 22 that engages of upper body 2, thereby carry out working fastening.

Then, the member that is in the working fastening state is carried out the inside and outside upset, insert screw 5 and carry out fastening from the top to the screw thread fixed part 31 of lower case 3.Then, in about once more upset when fastening that is through with, afterwards circuit substrate unit 1 is installed on the crossbeam 50.Perhaps, when further assembling cable, also need to carry out upset once more so that installation portion 24 becomes the outside in order on installation portion 24, to carry out distribution.By being made as this assembled configuration, in the circuit substrate unit 1 of embodiment 1, circuit substrate 4 is carried out water-proofness consider.

That is, around circuit substrate 4 is surrounded by the perimeter side walls portion 30 that by otch and with the below is not the lower case 3 of cardinal extremity, and in its outside, by having notch 20a and being that the perimeter side walls portion 20 of the upper body 2 of cardinal extremity surrounds with the top.Thus, even water droplet flows along the perimeter side walls portion 20 of upper body 2, prevent that by being positioned at its inboard perimeter side walls portion 30 water droplet etc. from invading the receiving space of circuit substrate 4.In addition, the fastening screw 5 of being used for of assembling upper body 2 and lower case 3 is assembled from bottom surface side, and a 31b of portion that falls of the circular depressions of screw thread fixed part 31 is in lower opening, thereby prevents that water droplet etc. is trapped in this part.

Figure 26 is the instruction diagram of twisted state of the circuit substrate unit 1 of embodiment 1.Among the figure, each arrow at both ends is represented direction of twist.

When assembling and subsequent install, the circuit substrate unit 1 of embodiment 1 is carried out the inside and outside upset, but because this upset produces twisting stress on circuit substrate unit 1.Under the situation of distortion, upper body 2 and lower case 3 will produce displacement in the end that becomes long limit along its long dimensional directions owing to stress.This displacement is to make upper body 2 stretchings and lower case 3 is shunk in a side, at opposite side in contrast.That is, identical with the situation of bending, on upper body 2 and lower case 3 along with fastening direction roughly the direction of quadrature produce dislocation, thereby to twist.

Do not wish to occur this distortion this point as mentioned above, identical with the situation of bending, if increase and decrease power, reversal rate and the operation of overturning, then can cause operating efficiency to descend in the mode that does not produce this distortion, the cost of work machine increases.

In the circuit substrate unit 1 of embodiment 1, the convex camber 31a of the wall portions 20b of the perimeter side walls portion 20 of upper body 2 and the screw thread fixed part 31 of lower case 3 is roughly connecting on the direction of quadrature with fastening direction, thereby the stress that makes 1 distortion of circuit substrate unit that produces when alleviating upset, suppress distortion, therefore unfavorable condition can be do not produced, operation can be improved.

In addition, different for fastening upper body 2 and lower case 3 with embodiment 1, also can consider to be provided with such as shown in figure 27 structure.In fastening structure shown in Figure 27, on upper body 2, be provided with for being used for fastening screw 62 spin-on screw thread acceptance divisions 60, on lower case 3, be provided with for the head of screw 62 and the screw thread fixed part 61 of packing ring engaging.And screw thread fixed part 61 has and is used for the slotted hole 61a that runs through for the threaded portion.And be following structure: the screw thread acceptance division 60 of upper body 2 and the screw thread fixed part 61 of lower case 3 are connected, from below tightening screw 62.

In this fastening structure shown in Figure 27,, will be used for being made as long hole shape for the hole (slotted hole 61a) that the threaded portion is run through in order to allow the dislocation on long dimensional directions when the working fastening and when fastening of upper body 2 and lower case 3.

But, in fastening structure shown in Figure 27, at carrying operator's compartment assembly 51, operator's compartment assembly 51 for outstanding when holding state or twisted state, to what upper body 2 and lower case 3 will produce that the situation of dislocation suppresses only be and the offset direction fastening force of the direction of quadrature roughly.Therefore, according to stress intensity, upper body 2 produces relative dislocation with lower case 3, produces by unfavorable condition crooked, that distortion causes.

To this, in embodiment 1, in assembling upper body 2 during, the screw thread fixed part 31 of lower case 3 is inserted among the notch 20a of perimeter side walls portion 20 of upper body 2 with lower case 3.Thus, they are grown location on the dimensional directions in working fastening upper body 2 during with lower case 3.And, the engagement section 32 of lower case 3 is fastened with the claw 22 that engages of upper body 2, thereby carry out working fastening.In the engaging of this engaging claw 22 and engagement section 32, as long as be made as the size, big or small of the dislocation of allowing long dimensional directions.

By double fastening structure, in the circuit substrate unit 1 of embodiment 1, when utilizing screw to carry out fastening between upper body 2 and the lower case 3, can on long dimensional directions, not produce dislocation with this structure for preliminary fixation.Therefore, fastening structure as shown in figure 27 is such, does not need to be provided with the such structure of slotted hole of allowing the dislocation size when fastening.

In embodiment 1,, can make the gap smaller between the convex camber 31a of screw thread fixed part 31 of the wall portions 20b of notch 20a of perimeter side walls portion 20 of upper body 2 and lower case 3 by so being arranged to carry out the structure of working fastening.Thus, the commitment when producing stress, it is favourable can making wall portions 20b and convex camber 31a connect and alleviate the stress this point.

In addition, the wall portions 20b and the convex camber 31a of the circuit substrate unit 1 of embodiment 1 are provided with a plurality of, the chamfer shape at 45 but 4 corner portions located tilt as shown in Figure 5, therefore also when the stress that bears with respect to long dimensional directions oblique bending, have the part that contacts above the direction at this, can carry out alleviating of stress.

And, in the circuit substrate unit 1 of embodiment 1, in the comparison of upper body 2 and lower case 3, compare with the lower case 3 of directly holding circuit substrate 4, make upper body 2 easily because the deadweight of operator's compartment assembly 51 and to the bending direction bending.That is, do not have otch with respect to the perimeter side walls portion 30 of lower case 3, upper body 2 is provided with notch 20a in perimeter side walls portion 20, be easy to bending in the wealthy mode of opening this notch 20a.Thus, considered following situation: upper body 2 is offset stress than lower case 3 bigger ground bendings, thereby these 2 structures can not improve the stress of circuit substrate 4.

The effect of supporting construction of the circuit substrate unit of embodiment 1 then, is described.

In the supporting construction of the circuit substrate unit of embodiment 1, can access following cited effect.

(1) circuit substrate 4 is being contained in the supporting construction of the circuit substrate unit 1 in the space that forms by upper body 2 and lower case 3, on upper body 2 and lower case 3, be provided with and be used for integratedly in conjunction with these housings 2,3 engaging claw 22 and engagement section 32, and screw thread acceptance division 21 and screw thread fixed part 31, and be used for circuit substrate unit 1 is installed to installation portion 25 on the crossbeam 50 on each of a pair of edge part relative on the long dimensional directions, being provided with at least of upper body 2, when being installed in upper body 2 on the crossbeam 50, between the crossbeam 50 of the basal surface of lower case 3 and this basal surface side, be provided with the space, therefore can make the external force that is applied on the circuit substrate unit 1 be difficult to influence circuit substrate.

(2) on upper body 2, has lower surface and the circuit substrate 4 cylinder flank 26 that near-earth is provided with that joins, on lower case 3, has upper surface and circuit substrate 4 support 35 that near-earth is provided with that joins, have cylinder flank 26 and support 35 are carried out fastening screw 5, therefore utilize the central portion of the short dimensional directions of cylinder flank 26 and support 35 clamping circuit substrates 4, can not produce abnormal noise etc. and lock-out circuit substrate 4 well.

(3) under circuit substrate unit 1 is installed in installing condition on the crossbeam 50, buffer components such as polyurethane material 6 are set in the space between lower case 3 and crossbeam 50, even therefore lower case 3 and crossbeam 50 bending owing to external force, also can avoid these member direct contacts and produce abnormal noise, wearing and tearing, perhaps can not be subjected to external force from crossbeam 50 sides.

(4) assembled configuration in the downside of upper body 2 assembling lower case 3 is at a plurality of positions upper body 2 and 3 of lower case to be carried out fastening structure, 35 of the fastening and cylinder flank 26 at a plurality of positions that upper body 2 and lower case are 3 and supports fastening be with screw 5 from the below spin-on upward, so water can not immerse circuit substrate 4 from screw 5 parts.

(5) circuit substrate unit 1 is the member that is installed to the car body side of vehicle, installation portion 24,25 is installed to circuit substrate unit 1 on the crossbeam 50, upper body 2 has the installation flank 23 of the electric wiring 101 that is bearing in the vehicle that extends on the long dimensional directions, therefore can send reception electric power, signal to the left and right direction of vehicle with less space, even this electric wiring 101 is installed on the circuit substrate unit 1, also can make its load can not influence circuit substrate 4.

(6) utilizing the protection of connector portion 33 of the lower surface of lower case 3 to make to be arranged on the circuit substrate 4 and to the adaptor union 4d that circuit substrate 4 is electrically connected with vehicle fitting exposes downwards; therefore be installed to assembled configuration on the upper body 2 by lower case 3; can be connected operation with position that crossbeam 50 does not overlap, and the insertion force can make upper body 2 utilize cylinder flank 26 and triangle flank 27 to bear this adaptor union to connect the time.

(7) in the circuit substrate unit 1 in the circuit substrate 4 that will grow size is contained in the space that is formed by upper body 2 and lower case 3, comprise the 1st bonded block and the 2nd bonded block, the 1st bonded block is in conjunction with upper body 2 and lower case 3, and utilize engaging of engaging claw 22 and engagement section 32 to come circuit substrate 4 to be temporarily fixed at working fastening state on upper body 2 and the lower case 3 in conjunction with also forming, above-mentioned engaging claw 22 and engagement section 32 are in order to the mode lock-out circuit substrate 4 that this circuit substrate 4 is sandwiched the desired location scope with upper body 2 and lower case 3, the 2nd bonded block is by the cylinder flank 26 than the upper body 2 of the combination combination more firmly of the 1st bonded block, the support 35 of lower case 3, and the screw 5 of fastening these members constitutes, in the fastening combination that utilizes the 2nd bonded block, carry out this in conjunction with the time remove the 1st bonded block combination (this be combined into engagement section 32 is hooked on the engaging claw 22 and make upper body 2 and lower case 3 can be not dividually in conjunction with) (making the hook that engage claw 22 and engagement section 32) partly from engagement release also, the snap portions that the 1st bonded block therefore can not occur is because vibration and butt and sonorific situation repeatedly can suppress to produce abnormal noise.

The double contraposition that is used for fastening upper body 2 with the lower case 3 of the 2nd bonded block of (8) the 1st bonded blocks, therefore after the 1st bonded block fastening, when carrying out the 2nd bonded block fastening, do not need to carry out special contraposition operation, therefore just can carry out the assembling of circuit substrate unit 1 by operation still less.These can be made contributions to operating efficiency, cost.

(9) comprising: the maintaining part 34 of lower case 3, it is arranged on the position higher than the lower surface of lower case 3, is used to support the lower surface of the periphery of circuit substrate 4; Support 35b, it is arranged on the height identical with this maintaining part 34, is used to support the lower surface that is used for fastening slotted hole 42 of the central authorities of circuit substrate 4; Triangle flank 27, it is provided with downwards highlightedly from lower surface of upper body 2, connects with the upper surface position with maintaining part 34 does not overlap of circuit substrate 4 or approaching; And cylinder flank 26, it is provided with downwards highlightedly from lower surface of upper body 2, connects with the upper surface position that overlaps with support 35b of circuit substrate 4 or approaching; With engaging of the engagement section 32 of the engaging claw 22 of upper body 2 and lower case 3 as the 1st combination, under the 1st bonding state, triangle flank 27 connects with circuit substrate 4, utilize triangle flank 27, maintaining part 34, support 35b is to sandwich circuit substrate 4 mode lock-out circuit substrates 4, on the other hand, fastening with upper body 2 and lower case 3, promptly support 35b combines as the 2nd with the fastening of cylinder flank 26 at least, under the 2nd bonding state, support 35b and cylinder flank 26 by fastening sandwiching circuit substrate 4 mode lock-out circuit substrates 4, thereby become triangle flank 27 to the 1 bonding states more firmly by the state that is pressed on the circuit substrate 4.Therefore, remain under the situation of above-mentioned fastening state the integral body upset of circuit substrate unit 1 in the inside of circuit substrate unit 1 and carry out structure part fastening, that be used for lock-out circuit substrate 4 and can play following effect: the mode of sonorific position relation is pushed fully owing to vibrate repeatedly butt not to be in, thereby can suppress to produce abnormal noise.

(10) be contained in the space that forms by upper body 2 and lower case 3 and on long dimensional directions, have in the flexible circuit substrate unit 1 at least at the circuit substrate 4 of the long size that will have weld part, comprise: the notch 20a of perimeter side walls portion 20 and screw thread acceptance division 21, they are provided with to devices spaced apart a plurality of on the edge of upper body 2, at least along the long dimensional directions setting of circuit substrate; And screw thread fixed part 31, it is arranged on another edge of lower case 3 in notch 20a and the screw thread acceptance division 21 double-type modes with perimeter side walls portion 20; The wall portions 20b of the notch 20a of perimeter side walls portion 20 faces under the state that separates mutually along the long dimensional directions part of circuit substrate 4 mutually with the convex camber 31a of screw thread fixed part 31, under the state of horizontal supporting, separate mutually, and impelling under the bearing state that produces bending, in the scope of the tolerance range of the strain value that is no more than weld part, contact, therefore suppress lower case 3 and upper body 2 at assembling process, to produce the situation of displacement in the carrying in factory etc., thereby can alleviate the welding of circuit substrate 4, the stress of electrical connection section etc. can not produce unfavorable condition.

(11) impelling the bearing state that produces above-mentioned bending is the outstanding bearing state of holding at least, therefore when to be created in outstanding hold bearing state by cause crooked of deadweight or hang the state of holding by counteraction cause crooked the time, the wall portions 20b of the notch 20a of perimeter side walls portion 20 contacts with the convex camber 31a of screw thread fixed part 31, suppress displacement, therefore for example in Fabrication procedure, even become the outstanding bearing state of holding, also can alleviate the stress of the welding, electrical connection section etc. of circuit substrate 4, can not produce unfavorable condition.

(12) screw thread fixed part 31 comprises the through hole 31c that falls a 31b of portion and run through for the threaded portion of the head that receives screw 5, by making screw thread fixed part 31 engage and be anchored on the notch 20a and the screw thread acceptance division 21 of perimeter side walls portion 20, assemble upper body 2 and lower case 3, notch 20a with perimeter side walls portion 20, screw thread acceptance division 21 and screw thread fixed part 31 engage the limiting part that limits as to upper body before fastening and when fastening 2 and the dislocation of lower case 3 on the long dimensional directions of circuit substrate, therefore be restricted to when before fastening, making the inside and outside upset of having assembled upper body 2 and the member of lower case 3, or when fastening, position between these members can not misplace, and wall portions 20b is reached near being made as in the predetermined size with the contacting of opposite face of convex camber 31a.Thus, can play the stress attenuative effect reliably.In addition,, can make simple structure, can not increase into this locality and carry out stress and alleviate by utilizing fastening part this stress attenuative effect of performance of holding concurrently.

(13) on the periphery of the basal surface of upper body 2, be provided with frame shape perimeter side walls portion 20 outstanding and hold lower case 3 in inside downwards, at a plurality of positions perimeter side walls portion 20 is carried out otch and form notch 20a, be provided with the screw thread acceptance division 21 of the threaded portion that is used for spiral shell cartridge screw 5 in the position of carrying out otch, therefore the wall portions 20b of screw thread fixed part 31 and the perimeter side walls portion 20 of notch 20a that carries out contraposition on screw thread acceptance division 21 and be used to receive the head of screw fastens, thereby performance stress attenuative effect, carry out upper body 2 sides that otch is formed for bringing into play the stress attenuative effect by a part to the perimeter side walls portion 20 that is used to hold lower case 3, can suppress cost, save the space, carry out stress simultaneously and alleviate.

In addition, the outside and the outstanding downwards perimeter side walls portion 20 that are positioned at the perimeter side walls portion 30 of lower case 3 are provided with notch 20a, therefore can carry out the discharge of water droplet etc. well, can improve the water-proofness of circuit substrate 4.

And the perimeter side walls portion 20 of upper body 2 is provided with notch 20a, therefore compares upper body 2 easier bendings with lower case 3.Thereby the earth of comparing with the lower case 3 of directly holding circuit substrate 4 is crooked and offset stress, can make upper body 2 and two members of lower case 3 construct the stress that does not improve circuit substrate 4.

Embodiment 2

Below, the supporting construction of the circuit substrate unit of embodiments of the invention 2 is described with reference to the accompanying drawings.In addition, for the parts identical, mark that the part mark is identical, and omit these explanations with embodiment.

Below, the structure of supporting construction of the circuit substrate unit of embodiment 2 is described.

Figure 32～Figure 34 is the instruction diagram of vehicle assembled state of the circuit substrate unit of expression embodiment 2.Figure 35 is the block diagram of the circuit substrate unit 1 of embodiment 2.Figure 36 is the block diagram of decomposing state of the circuit substrate unit 1 of expression embodiment 2.

As shown above, the circuit substrate unit 1 of embodiment 2 is identical with embodiment 1, circuit substrate unit 1 be configured in by resinous upper body 2 and lower case 3 this up and down in 2 structures that assemble, be installed on the in-to-in crossbeam 50 that is arranged on instrument carrier panel, constitute the operator's compartment assembly.The operator's compartment assembly is to be pre-assembled and to be installed to once on the car body of vehicle.Thereby each part, various piece are almost identical with embodiment 1, thereby Fig. 5～Figure 11 of embodiment 1 also is identical in embodiment 2.

The competent structure that adds of upper body 2 among the embodiment 2 then, is described.

Figure 37 is the below block diagram of upper body 2 of the circuit substrate unit 1 of embodiment 2.Figure 38 is the birds-eye view of upper body 2 of the circuit substrate unit 1 of embodiment 2.Figure 39 is the upward view of upper body 2 of the circuit substrate unit 1 of embodiment 2.

On upper body 2, the competent structure portion 28 that adds is set in scope P shown in Figure 38.Scope P is the scope that overlaps with crossbeam 50 on above-below direction when being installed in circuit substrate unit 1 on the crossbeam 50.

The competent structure portion 28 that adds of upper body 2 comprises strengthening rib 281a～281k, strengthening rib 282a～282n, strengthening rib 283a～283m, strengthening rib 284a～284f.

As shown in Figure 6, upper body 2 is made as becoming of upper surface to be installed in the wirning harness of installing on the flank 23 is that the position of the below of electric wiring 101 becomes than other upper surfaces of upper body 2 more by the position of below.In other words, the upper surface of upper body 2 is that the border produces step on short dimensional directions so that flank 23 to be installed, and makes the thickness attenuation of the part of configuration electric wiring 101, promptly, as shown in Figure 6, with scope P that crossbeam 50 overlaps in form the shape that increases thickness upward.The part that increases this thickness from the end face of beneath as Figure 37, the rib structure is set as adding competent structure portion 28 as shown in Figure 39, and the conduct of rib structure be set on the part of upper surface as shown in figure 38 like that add competent structure portion 28.

As shown in figure 37, this rib structure at first is arranged on 2 strengthening rib 281a, 281b parallel on the long dimensional directions at the end face from beneath (basal surface) of upper body 2.It is the rib of single structure that these strengthening ribs 281a, 281b become respectively up to two ends.Shown in Figure 33～36, upper body 2 is to need and will draw and be connected on the vehicle fitting to cross over this mode that has increased the part of thickness as the long part of the electric wiring 101 of the wirning harness of supporting longways on long dimensional directions.Therefore, at both ends and middle 2 positions amount to 4 positions, and the part of thin thickness is set.

In the upper surface portion of this thin thickness, in the mode that becomes single structure separately strengthening rib 281a, 281b are set, as Figure 33～36 and shown in Figure 38, strengthening rib 281c～281j is set at 4 positions of the upper surface of upper body 2.Thus, in the scope P of upper body 2, be provided with 3 abreast and follow the rib that an end extends to the single structure of another section.In addition, though be interrupted,, the strengthening rib 281k that roughly becomes single structure is set as its configuration at the end face from beneath (basal surface) of upper body 2.This strengthening rib 281k is arranged on the position that connects cylinder flank 26 in the mode parallel with strengthening rib 281a, 281b.

Then, on the end face from beneath (basal surface) of upper body 2, be provided with 2 of length on long dimensional directions and follow the roughly rib structure of quadrature of parallel strengthening rib 281a～281j.

In the thicker scope P of upper body 2, strengthening rib 282a～282n extends to the other end from an end on short dimensional directions.But,, become highly lower shape in a side that overlaps with electric wiring 101 as wirning harness though height is arranged in scope P.

Strengthening rib 284a～284f be arranged on and install flank 23 in the position of the stage casing quadrature of the long dimensional directions of upper body 2, this installation flank 23 is to be arranged on 6 positions from the outstanding upward mode of the upper surface of upper body 2.And strengthening rib 284a～284f is identical with strengthening rib 282a～282n, extends to the other end from an end of the short dimensional directions of upper body 2.Its result, as shown in figure 37, at the cancellate rib structure of the end face from beneath (basal surface) configuration of upper body 2.Though on upper body 2, be provided as the competent structure portion 28 that adds of this cancellate rib structure, on lower case 3, be not provided with, therefore with respect to lower case 2, the rigidity of upper body 2 is all higher on long dimensional directions and short dimensional directions.

Then, describe the fixture construction of electric wiring 101 in detail.

Figure 40 is the amplification view of installation flank 23 of upper body 2 of the circuit substrate unit 1 of embodiment 1.

As shown in the drawing, upper body 2 is not installed a side of electric wiring 101 for the aspect ratio of the upper surface (electric wiring configuration side C) of a side that electric wiring 101 is installed the height of upper surface (the non-configuration of electric wiring side B) is low, as shown in figure 46 like that will with the cooresponding part of this diff-H as adding competent structure portion 28 (scope P).And as shown in figure 40, the cardinal extremity of installation flank 23 of erectting setting in the mode of extending upward is as having increased the upper surface that adds competent structure portion 28 (the non-configuration of electric wiring side B) highly.Thus, the length of erectting setting upward from the non-configuration of electric wiring side B that flank 23 is installed becomes the h1 of Figure 40.Install on the part of flank 23 at this, be provided with through hole 231 at the left and right directions that adds competent structure portion 28 1 sides from the side direction that electric wiring 101 is installed.

Then, illustrate as the structure that is used for electric wiring 101 is fixed to the clamp sleeve 7 that the fixer on the flank 23 is installed.In addition, clamp sleeve 7 is equivalent to fixed parts of the present invention and installing component.

Figure 41 is the explanation lateral plan that the clamp sleeve 7 of electric wiring 101 is installed on the circuit substrate unit 1 of embodiment 2.Figure 42 is the explanation cutaway view that the clamp sleeve 7 of electric wiring 101 is installed on the circuit substrate unit 1 of embodiment 2.

Clamp sleeve 7 comprises electric wiring installation portion 71, umbrella portion 72, insertion section 73, axial region 74.In addition, clamp sleeve 7 is for the rubber-like resin, for example comprise the material of rubber.

Electric wiring installation portion 71 is reeled on the complete cycle of the part of electric wiring 101, and clamp sleeve 7 is fixed on the electric wiring 101.As for shape, in the shape of ring-type shown in Figure 41, Figure 42, but also can be coiling ribbon and fixed shape, or the fastening shape in back of reeling.

Umbrella portion 72 is a shape of launching the umbrella part from an end of electric wiring installation portion 71 towards direction of insertion.

Insertion section 73 is arranged on the top of direction of insertion, and is opposite with umbrella portion 72, for launch the shape of umbrella part to the direction opposite with direction of insertion from top ends.

Axial region 74 is the member that connects umbrella portion 72 and insertion section 73 on direction of insertion.

The effect of supporting construction of the circuit substrate unit 1 of embodiment 2 is described.In addition, upper body 2, lower case 3, circuit substrate 4 and the installation that installs them on the crossbeam 50 are identical with the situation of embodiment 1, and effect, effect is also identical, therefore omits these explanations.

[carrying out the distribution of operator's compartment assembly, the effect of distribution]

On the upper surface of circuit substrate unit 1, on left and right directions, be provided with a plurality of installation flanks 23, therefore at first go up left along flank 23 placement electric wirings 101 are installed at the upper surface (electric wiring configuration side C) of circuit substrate unit 1, right is pencil configuration electric wiring 101, then, use the electric wiring installation portion 71 of clamp sleeve 7 that harness and holding electrical distribution 101 on the flank 23 is being installed, like that insertion section 73 is inserted in the through hole 231 that flank 2 is installed as shown in figure 44, install on the flank 23 thereby like that electric wiring 101 is fixed to as shown in figure 45.Under this stationary state, electric wiring 101 is positioned at the position of leaving upward from electric wiring configuration side C.Vehicle fitting is drawn and be connected in to the part of electric wiring 101 in the mode of the upper surface of leap upper body 2.

In addition, in this case, a plurality of adaptor union 4d from the basal surface that is arranged on circuit substrate unit 1 carry out the connection of power supply supply, signal wire (SW), so the inside of the instrument carrier panel of operator's compartment assembly 51 becomes very simple Wiring construction.

[about the installation of adaptor union]

For the fixing means of the electric wiring 101 of circuit substrate unit 1 that embodiment 2 is described is to be applied to the situation of carrying out under the situation of circuit substrate 4 suppressing external force, to describing suppressing the situation that external force is applied on the circuit substrate 4 under the installing condition of adaptor union.

In the circuit substrate unit 1 of embodiment 2, be provided with protection of connector portion 33 on the lower surface of the inboard in one-sided, Figure 35, Figure 36 of lower case 3, make a plurality of adaptor union 4d that are connected with circuit substrate 4 be exposed to the outside.Position about this adaptor union 4d, since utilize installation portion 24,25 to be installed to upper body 2 on the crossbeam 50 and lower case 3 not support the downside that is installed to upper body 2 as the mode of the load of the electric wiring 101 of wirning harness, therefore on the position, obtain degree of freedom, be arranged on the position that does not overlap up and down with crossbeam 50.

Thus, be installed to circuit substrate unit 1 on the crossbeam 50 after, the operation that the adaptor union of vehicle arrangement is connected to adaptor union 4d becomes easy operation.

And, when carrying out this connection, be connected with adaptor union 4d with the mode inserted from the below adaptor union, so, be subjected to power towards the top as circuit substrate 4 with vehicle arrangement.This power is by being configured in from the cylinder flank 26 of the closer position of adaptor union 4d and triangle flank 27 and born by upper body 2.And, in adding in the competent structure portion 28 of upper body 2, particularly utilize the strengthening rib 282a～282n at the two ends that extend to short dimensional directions and bear this power fully by the rigidity that on short dimensional directions, is enhanced.In addition, this power is transmitted to crossbeam 50 from upper body 2, therefore can not appear at the situation that is had influence on circuit substrate 4 in the connection of adaptor union by lower case 3 holding capacity.Utilize upper body 2 high strength ground supporting circuit substrate 4 downwards, thereby make the connection operation of adaptor union become easy.

[about fixing of electric wiring]

In the circuit substrate unit 1 of embodiment 2, utilize the circuit substrate 4 be contained in the inside, the transmission, the transmission of signal of electric power of carrying out the left and right direction of vehicle receives.To this,, require to carry out further distribution in crossbeam 50 parts for the vehicle aspect.As an one reason, can enumerate following situation: owing to be required higher shielding at important signal, therefore the shielding wire of this requirement is satisfied in configuration.

In the circuit substrate unit 1 of embodiment 2, also has function of shielding.

(about function of shielding)

In the circuit substrate unit 1 of embodiment 2, circuit substrate 4 replaces in the inside of the instrument carrier panel of vehicle and is used for left, right supply power supply or carry the electric wire of signal and play a role.In this function, identical when bringing into play function with embodiment 1 when replacing shielding wire, obtain a part of function of shielding by making the long dimensional directions of its energising pattern along about the crossbeam 50 of material above being positioned at predetermined space with electric conductivity.

In embodiment 2, the scope P that overlaps with crossbeam 50 of upper body 2 is thickened and the competent structure portion 28 that adds is set, utilize installation portion 24,25 that upper body 2 is installed on the crossbeam 50.Thus, lower case 3 is not born the function of supporting as the load of the electric wiring 101 of wirning harness, is installed to the downside of upper body 2, can be on textural and wall thickness all attenuation be favourable.This is because can reduce the spacing with crossbeam 50 on function of shielding, and increase and will be made as best degree of freedom with respect to the position, position of crossbeam 50.

As mentioned above, in the circuit substrate unit 1 of embodiment 2, also has function of shielding, but also require the electric wiring 101 of configuration, therefore in embodiment 2, electric wiring 101 is installed on the circuit substrate unit 1 that is installed on the crossbeam 50 as wire harness such as shielding wires.

(installation procedure of electric wiring)

Figure 43 is that expression is installed to the circuit substrate unit 1 of embodiment 2 on the crossbeam 50 and the figure of the state of electric wiring 101 has been installed on circuit substrate unit 1.Figure 44 is the figure that indicates to install and fix the state of the clamp sleeve 7 that is used to keep electric wiring 101 on the installation flank 23 of the circuit substrate unit 1 of embodiment 2.Figure 45 is illustrated in installation sleeve pipe clamp 7 on the installation flank 23 of circuit substrate unit 1 of embodiment 2 and the instruction diagram of having fixed the state of electric wiring 101.

When electric wiring 101 is installed on the circuit substrate unit 1 at embodiment 2, in advance at a plurality of positions of electric wiring 101,6 position installation sleeve pipe clamps 7 for example.Specifically, electric wiring 101 is installed on the electric wiring installation portion 71 of clamp sleeve 7.

Then, as Figure 44, shown in Figure 45, electric wiring 101 is positioned at reduced the side of the upper surface position of upper body 2, in other words is positioned at and is not provided with a side (electric wiring configuration side C) that adds competent structure portion 28.Afterwards, the mode of passing the through hole 231 that flank 23 is installed with insertion section 73 is inserted the clamp sleeve 7 that is installed on the electric wiring 101.

Like this, the umbrella shape shape of insertion section 73 is deformed into less diameter and passes through hole 231 owing to its elasticity, becomes free state after passing, thereby gets back to original umbrella shape shape by elasticity.Then, the elasticity of umbrella shape shape to clamp sleeve 7 to direction of insertion, in other words to being provided with a side application of force that adds competent structure portion 28.

In addition, with the insertion through hole 231 of the insertion section 73 of clamp sleeve 7 time, umbrella portion 72 become direction of insertion, be axial region 74 axially on make umbrella shape shape elastic deformation state.Therefore, under the state of the insertion of having finished insertion section 73, the elasticity that umbrella portion 72 utilizes the umbrella shape shape to clamp sleeve 7 to the direction opposite, in other words to not being provided with a side application of force that adds competent structure portion 28 with direction of insertion.

So, by the insertion section 73 and the direction application of force of umbrella portion 72, electric wiring 101 is fixed on the installation flank 23 with full intensity to mutual pulling.In addition, because clamp sleeve 7 has elasticity, so relax the vibration between circuit substrate unit 1 and electric wiring 101, the transmission of external force.

So, float upward from the upper surface (electric wiring configuration side C) of upper body 2 bottom of the electric wiring 101 that utilization installation flank 23 is fixed, and only depends on installation flank 23 to support.This be because, in case electric wiring 101 touches the upper surface of upper body 2, then can be owing to Vehicular vibration produces wearing and tearing.In addition, be the consideration that can not be delivered to electric wire for water droplet etc.

This wearing and tearing, the corrosion that is caused by water droplet descend shielding properties, therefore are made as this configuration, can make the protection effect of electric wiring 101 bigger.

In the circuit substrate unit 1 of embodiment 2, the electric wiring 101 as wirning harness is installed, thereby its load is applied in as external force.

Its load towards the direction of outstanding upward installation flank 23 bendings, in other words downwards and the direction of electric wiring 101 1 sides apply.The cardinal extremity of installation flank 23 is arranged on the upper surface position of improving upper body 2 as shown in figure 40 like that and is provided with on the part (the non-configuration of electric wiring side B) that adds competent structure portion 28, therefore it highly can not become the height h2 (height from electric wiring configuration side C to the top that flank 23 is installed) that has reduced the upper surface position, and becomes the height h1 of the arm that has shortened moment of torsion.Therefore, suppress external force because the load of the load of electric wiring 101 and electric wiring 101 and signals of vehicles are applied to installation flank 23.

In addition, in the circuit substrate unit 1 of embodiment 2, the cardinal extremity that flank 23 is installed is made as is provided with the part (the non-configuration of electric wiring side B) that adds competent structure portion 28, so this installation flank 23 bears in the competent structure portion 28 that adds of upper body 2.Particularly, strengthening rib 282a～282n, strengthening rib 283a～283m, the strengthening rib 284a～284f along this bending direction setting utilizes its rigidity to support fully.In addition, be provided with strengthening rib 284a～284f in the mode that overlaps with the configuration that flank 23 is installed, therefore flank 23 is installed in supporting more firmly.

In addition, in embodiment 2, as shown in figure 43, strengthening rib 281c～281j is set on the top of upper body 2 and utilizes the part reduced height, draw electric wiring 101 at 4 positions as wirning harness in the mode of crossing over circuit substrate unit 1.Draw and be connected in the operation of vehicle fitting at this, also to making the direction that flank 23 bendings (falling down) are installed be applied with external force.To this, the cardinal extremity that flank 23 also will be installed is made as the part that adds competent structure portion 28 that is provided with as the higher upper surface position of upper body 2, therefore shortens the arm of moment of torsion, suppresses external force.In addition, strengthening rib 282a～282n, strengthening rib 283a～283m, the strengthening rib 284a～284f of the bending direction setting that causes along this external force utilize its rigidity to support fully.In addition, be provided with strengthening rib 284a～284f in the mode that overlaps with the configuration that flank 23 is installed, therefore flank 23 is installed in supporting more firmly.

In addition, in the circuit substrate unit 1 of embodiment 2, utilize the competent structure portion 28 that adds of upper body 2 to bear external force, the installation portion 24,25 that is used on the upper body 2 of supporting circuit substrate unit 1 towards the external force of upper body 2 transmits.Therefore, this load is not transmitted to circuit substrate 4 and lower case 3.

So, in the circuit substrate unit 1 of embodiment 2, lower case 3 is not born the supporting as the electric wiring 101 of wirning harness, at the downside that utilizes installation portion 24,25 to be installed in the upper body 2 on the crossbeam 50 lower case 3 is installed, thereby external force is not transmitted to circuit substrate unit 1, can not be subjected to the influence of external force.Even be applied with very strong external force to upper body 2, also suppress influence to circuit substrate 4, this is favourable.

In addition, circuit substrate unit 1 is provided with polyurethane material 6 as shown in figure 43 like that between lower case 3 and crossbeam 50, but does not transmit load, can not occur because vibration, distortion and direct contact and produce the situation of wearing and tearing, abnormal noise.

For the effect of clear and definite embodiment 2, below further be described in detail.

Figure 46 is represented, and to be expression 2 different with embodiment, the instruction diagram of the example during with respect to circuit substrate unit 1 holding electrical distribution 101.The instruction diagram of lock structure of the anchor clamps when Figure 47 is the structure of expression Figure 46.

When the mode holding electrical distribution 101 that floats upward with upper surface on the upper body 2 in circuit substrate unit 1, can consider such as shown in figure 46 fixing from upper body 2.

In this case, use the anchor clamps 8 that are installed on the electric wiring 101, be installed to from upper body 2 in the mode of inserting anchor clamps 8 from the top and erect on the installation flank 23 that is provided with.At this moment, for example as shown in figure 47, the through hole 231 of the installation flank 23 of the part of anchor clamps 8 and embodiment 2 is fastened.

The circuit substrate unit 1 of embodiment 2 disposes to left and right length longways along the crossbeam 50 of operator's compartment assembly 51.On the other hand, the electric wiring of being installed 101 also disposes longways to left and right length.In the assembling operation behind this state or the maintenance of vehicle etc., make electric wiring 101 crooked and to make arm, instrument, element on fore-and-aft direction by the time, the operator when catching nearby thing with hand and when carrying out distribution, apply external force to electric wiring 101 sometimes.

In this case, with electric wiring 101 be in the situation of the below configuration of floating and operator's compartment assembly about the situation of the central bend situation that might take place also as the reason addition, it is more executing power-assisted situation in the mode of lifting electric wiring 101.

Therefore, shown in Figure 46 from above the anchor clamps installation constitution in, when being moved upward electric wiring 101, sometimes for consistent with mounting direction and remove fixing.In case fixedly be disengaged, then its holder part perhaps produces abnormal noise owing to vibration produces wearing and tearing.In addition, a part that produces electric wiring 101 contacts with upper body 2, other elements and because vibration is worn and torn and shielding properties decline, perhaps adheres to water droplet, perhaps produces abnormal noise etc. owing to vibrating, and the state that occurs can take place not wish.

To this, in embodiment 2, the direction of the external force that will lift electric wiring 101 that takes place on medium high frequency degree ground such as operations and the installation direction that utilizes clamp sleeve 7 that electric wiring 101 is installed in to install on the flank 23 are the different directions of quadrature roughly, therefore prevent fixedly being disengaged of electric wiring 101 and circuit substrate unit 1.That is, this external force direction can not become the fixing direction of removing electric wiring 101.Therefore, can be with good state holding electrical distribution 101 fully.

In addition, be applied on the installation flank 23 to the direction externally applied forces that lifts electric wiring 101, but the part that is provided with the cardinal extremity that flank 23 is installed of upper body 2 is to add competent structure portion 28, utilizes the rib structure to bear external force with full intensity, thereby can not transmit external force to circuit substrate 4.This is and the aforesaid identical effect of situation of bearing to the direction externally applied forces that installation flank 23 is fallen down.

The effect of supporting construction of the circuit substrate unit of embodiment 2 then, is described.

In the circuit substrate unit of embodiment 2,, can also obtain following cited effect except the above-mentioned effect of embodiment 1.

(14) the electric wiring fixing means of circuit substrate Unit 4 is circuit substrate 4 to be contained in the space that is formed by upper body 2 and lower case 3 and the method for electric wiring 101 of distribution that has been arranged on circuit substrate Unit 4 on the crossbeam 50 fixing harness, in the electric wiring fixing means of these circuit substrate Unit 4, to the outside direction setting installation flank 23 is set from upper body 2, on electric wiring 101, install and be used for to the clamp sleeve 7 that flank 23 is installed is installed, in the operation after circuit substrate Unit 4 are set on the crossbeam 50, to with utilizing clamp sleeve 7 installation direction that electric wiring 101 is fixed to when installing on the flank 23 be made as different directions at the direction of circuit substrate Unit 4 and electric wiring 101 high frequency ground externally applied forces, situation about therefore can restraint applying to circuit substrate, and electric wiring can be fixed on the circuit substrate unit well.

(15) make upper body 2 the not electric wiring non-configuration side B relative with electric wiring 101 part than upper body 2 with electric wiring 101 relatively and the electric wirings that leave configuration side C thick, and make the aspect ratio opposite face C height of the non-configuration of electric wiring side B, utilize electric wiring configuration side C and the non-configuration of electric wiring side B to form step, the cardinal extremity that flank 23 is installed is made as the non-configuration of electric wiring side B, shorten the setting that flank 23 is installed length is set, therefore can be by shortening the arm of moment of torsion, suppress because the load that electric wiring 101 causes, the load of electric wiring 101 and vibration of vehicle and be applied to the external force that flank 23 is installed, thus electric wiring 101 can be fixed on the circuit substrate unit 1 well.In addition, the inhibition of external force can suppress to execute power-assisted situation to circuit substrate 4.

(16) with increasing of the non-configuration of the electric wiring of upper body 2 side B one side part be made as to utilize and add the structure that rigidity improve in competent structure portion 28, the non-configuration of the electric wiring of upper body 2 side B one side is installed on the crossbeam 50, thereby circuit substrate Unit 4 are set on the crossbeam 50, therefore the part that has improved rigidity becomes part is set, can make and can transmit external force, thereby can utilize the competent structure portion 28 that adds of having improved rigidity to bear the load etc. of electric wiring 101 fully to circuit substrate 4.

(17) the electric wiring configuration side C from upper body 2 disposes electric wiring 101 with leaving, utilizing clamp sleeve 7 that electric wiring 101 is fixed on installs on the flank 23, therefore can prevent that electric wiring 101 and electric wiring from disposing side C and contacting and wear and tear, can prevent that water droplet is attached on the electric wiring 101, thus can be with good state holding electrical distribution.

(18) the electric wiring fixture construction of circuit substrate unit is for being contained in circuit substrate 4 in the space that is formed by upper body 2 and lower case 3 and the structure of electric wiring 101 of distribution that has been arranged on the circuit substrate unit on the crossbeam 50 fixing harness, in the electric wiring fixture construction of this circuit substrate unit, comprise flank 23 is installed, this installation flank 23 is erect setting and is utilized clamp sleeve 7 that electric wiring 101 is installed to outside direction from upper body 2, installation direction when utilizing clamp sleeve 7 that electric wiring 101 is installed to flank 23 be set at operation after being arranged on the circuit substrate unit on the crossbeam 50 at the different direction of direction of circuit substrate Unit 4 and electric wiring 101 high frequency ground externally applied forces, therefore can suppress the situation that external force applies to circuit substrate, and electric wiring is fixed on the circuit substrate unit well.

(19) will be made as the position that electric wiring 101 and upper body 2 are left mutually in the installation site that installation sleeve pipe clamp 7 on the flank 23 is installed, therefore can prevent that electric wiring 101 and electric wiring from disposing side C and contacting and wear and tear, can prevent that water droplet is attached on the electric wiring 101, thus can be with good state holding electrical distribution.

(20) upper body 2 comprises: add competent structure portion 28, the rigidity of its long dimensional directions is than the rigidity height of the long dimensional directions of lower case 3; Installation portion 25, its be arranged in the edge part of relative at least short dimension side with add the part that competent structure portion 28 links to each other on, be used for circuit substrate unit 1 is installed to crossbeam 50; And lower case 3 comprises support 35b, this support 35b is via the slotted hole 42 of circuit substrate 4 and utilize the fastening of screw 5 and fasten with the cylinder flank 26 at position that being provided with of upper body 2 adds the strengthening rib 281k of competent structure portion 28, therefore can suppress whole unit and maximize, can make that the external force towards the circuit substrate unit is difficult to influence circuit substrate.

(21) on the part of the whole and short dimensional directions of the long dimensional directions of upper body 2, in the scope of the scope P that upper body 2 overlaps with crossbeam 50, be provided with the competent structure portion 28 that adds of upper body 2, when therefore on crossbeam 50, circuit substrate unit 1 being installed and after installing, the bending of crossbeam 50 as external force when circuit substrate unit 1 applies, utilization adds competent structure portion 28 and bears this external force from installation portion 24,25, can make external force can not influence other parts.And, can save ground, space electric wiring 101 is installed.

(22) the competent structure portion 28 that adds of upper body 2 is, upper body 2 is made as the end face shape in the space of the top that increases circuit substrate 4, on the end face of upper body 2, erect and be provided with a plurality of strengthening rib 281a～281k, strengthening rib 282a～282n, strengthening rib 283a～283m, strengthening rib 284a～284f, therefore can be with the shape of the easy demoulding, the reinforcement that improves rigidity efficiently with respect to the bending of the bending of long dimensional directions, direction of twist.

(23) strengthening rib 281a～281k, 282a～282n, 283a～283m, the 284a～284f of upper body 2 are, be reticulation disposed strengthening rib 281a～281k of on the long dimensional directions of circuit substrate unit 1, extending and with the roughly upwardly extending strengthening rib 282a～282n in side, 283a～283m, the 284a～284f of quadrature, the therefore reinforcement that can further improve rigidity of long dimensional directions by lattice shape.

(24) strengthening rib 281a～281k, 282a～282n, 283a～283m, the 284a～284f with a plurality of upper body 2 is, in erectting the strong rib that is provided with, strengthening rib 281a～281k is made as on the long dimensional directions of circuit substrate unit 1 with single structure and extends, and therefore can bear fully and makes the external force of circuit substrate unit 1 to the bending direction bending.

(25) electric wiring 101 that extends on being provided for the long dimensional directions in circuit substrate unit 1 on the upper surface of upper body 2 is installed to the installation flank 23 on the circuit substrate unit 1, strengthening rib 281a～the 281k of upper body 2,282a～282n, 283a～283m, 284a～284f is, in erectting the strong rib that is provided with, with strengthening rib 284a～284f with the direction of the long dimensional directions quadrature of circuit substrate unit 1 be arranged on the position that flank 23 overlaps is installed on, therefore can bear the external force that is applied in owing to the load of electric wiring 101 and the operation relevant fully with electric wiring 101.

(26) member for mount is a crossbeam 50 long on the left and right directions of vehicle, on the lower surface of lower case 3, be not provided with circuit substrate 4 and the outside adaptor union 4d that is electrically connected on the superposed part with crossbeam 50, therefore can be connected to the connection operation of adaptor union 4d easily, can utilize to be arranged on the locational external force when adding competent structure portion 28 height and bearing the operation relevant rigidly that overlaps with crossbeam 50 with adaptor union 4d.

In addition, use this clamp sleeve 7 with electric wiring 101 be bearing in the structure installed on the flank 23, the strengthening rib structure that adopted above-mentioned strengthening rib 281a～281k, 282a～282n, 283a～283m, 284a～284f also can be used in the supporting construction that the circuit substrate unit in space is not set certainly between the such member for mount of the lower surface of lower case 3 and crossbeam 50.

More than, according to embodiment 1 circuit substrate of the present invention unit has been described, but about concrete structure, be not limited to these embodiment, only otherwise break away from the inventive concept of each technical scheme in claims, just allow design modification or append etc.

In the above-described embodiments, being that example is illustrated with the circuit substrate 4 that is made of left and right two parts, but also can being the circuit substrate that is made of a plurality of circuit substrates, perhaps also can be the circuit substrate of unibody construction.

In addition, about circuit substrate 4, promptly can be in order to supply power supply, to transmit signal and the circuit substrate of electronic component almost is not installed, also can be the power substrate that electronic component has been installed fully, both all can.

Claims (24)

1. the supporting construction of a circuit substrate unit, this circuit substrate unit are circuit substrate to be contained in state lower support in the space that is formed by upper body and lower case on member for mount, to it is characterized in that,

Be provided with the engagement section on above-mentioned upper body and above-mentioned lower case, this engagement section is used for above-mentioned upper body and above-mentioned lower case are carried out combination and makes this both become one,

Be provided with installation portion on each edge part of growing a pair of edge part relative on the dimensional directions at least of above-mentioned upper body, this installation portion is used for the foregoing circuit base board unit is installed to above-mentioned member for mount,

When being installed in above-mentioned upper body on the above-mentioned member for mount, form the space near between the surface of a side at the basal surface of above-mentioned lower case and basal surface above-mentioned member for mount and above-mentioned lower case.

2. the supporting construction of circuit substrate according to claim 1 unit is characterized in that,

Utilize above-mentioned upper body and above-mentioned lower case to keep the foregoing circuit substrate in mode from clamping up and down.

3. the supporting construction of circuit substrate according to claim 2 unit is characterized in that,

Keep the structure of foregoing circuit substrate to comprise:

Last lateral holding portion, on the above-mentioned upper body so that should on the lower surface of lateral holding portion near the mode of foregoing circuit substrate lateral holding portion on this is set;

Following lateral holding portion, on above-mentioned lower case so that the upper surface of this time lateral holding portion is provided with this time lateral holding portion near the mode of foregoing circuit substrate; And

Secure component, it is fastening to carrying out between above-mentioned last lateral holding portion and the above-mentioned following lateral holding portion;

Utilize above-mentioned upward lateral holding portion and above-mentioned lateral holding portion down to come the central portion of the short dimensional directions of clamping foregoing circuit substrate.

4. according to the supporting construction of each described circuit substrate unit in the claim 1 to 3, it is characterized in that,

Above-mentioned member for mount is a crossbeam, and this crossbeam is the structure spare of the operator's compartment assembly of vehicle,

The foregoing circuit base board unit is to utilize the two end portions of foregoing circuit base board unit to be installed on the above-mentioned crossbeam as the mode of long dimensional directions the left and right vehicle wheel direction of above-mentioned operator's compartment assembly.

5. according to the supporting construction of each described circuit substrate unit in the claim 1 to 4, it is characterized in that,

The supporting construction of foregoing circuit base board unit comprises:

The 1st bonded block, it carries out combination to above-mentioned upper body and above-mentioned lower case, and can utilize above-mentioned upper body and above-mentioned lower case to keep the foregoing circuit substrate in the mode that the foregoing circuit substrate is sandwiched in the scope of desired location; And

The 2nd bonded block, it is fixed on the foregoing circuit substrate on above-mentioned upper body or the above-mentioned lower case, and than above-mentioned the 1st bonded block more firmly in conjunction with above-mentioned upper body and above-mentioned lower case;

Above-mentioned the 2nd bonded block carry out in conjunction with the time remove the above-mentioned combination of above-mentioned the 1st bonded block.

6. the supporting construction of circuit substrate according to claim 5 unit is characterized in that,

Engaging between the engagement section that above-mentioned the 1st bonded block is above-mentioned upper body and the engagement section of above-mentioned lower case,

Above-mentioned the 2nd bonded block is fastening between above-mentioned upper body and the above-mentioned lower case;

Fastening by between above-mentioned upper body and the above-mentioned lower case, above-mentioned upper body and above-mentioned lower case tight joint, and remove the engaging of above-mentioned engagement section.

7. according to the supporting construction of claim 5 or 6 described circuit substrate unit, it is characterized in that,

The engagement section of above-mentioned the 1st bonded block comprises claw and pawl acceptance division, and above-mentioned pawl acceptance division has the step that receives above-mentioned claw,

Above-mentioned the 2nd bonded block is to carrying out fastening screw between above-mentioned upper body and the above-mentioned lower case.

8. according to the supporting construction of each described circuit substrate unit in the claim 5 to 7, it is characterized in that,

Above-mentioned the 1st bonded block is double to be used to carry out the contraposition of fastening, the above-mentioned upper body and the above-mentioned lower case of above-mentioned the 2nd bonded block.

9. according to the supporting construction of each described circuit substrate unit in the claim 5 to 8, it is characterized in that,

The supporting construction of foregoing circuit base board unit comprises:

The 1st maintaining part, it is arranged on the position higher than the lower surface of above-mentioned lower case, and the lower surface of the periphery of supporting foregoing circuit substrate;

The 2nd maintaining part, it is arranged on above-mentioned lower case and position above-mentioned the 1st maintaining part equal height, and the lower surface that is used for fastening through hole part of the central authorities of supporting foregoing circuit substrate;

The 1st flank, it is provided with upward highlightedly from lower surface of above-mentioned upper body, and the butt or the upper surface position that does not overlap with above-mentioned the 1st maintaining part of approaching the foregoing circuit substrate; And

The 2nd flank, it is provided with upward highlightedly from lower surface of above-mentioned upper body, and the butt or the upper surface position that overlaps with above-mentioned the 2nd maintaining part of approaching the foregoing circuit substrate;

Engaging between the engagement section that above-mentioned the 1st bonded block is above-mentioned upper body and the engagement section of above-mentioned lower case,

Under the bonding state that is undertaken by above-mentioned the 1st bonded block, above-mentioned the 1st flank is connected to the foregoing circuit substrate, utilizes above-mentioned the 1st flank, above-mentioned the 1st maintaining part and above-mentioned the 2nd maintaining part to keep the foregoing circuit substrate to sandwich foregoing circuit substrate mode,

Above-mentioned the 2nd bonded block is fastening between above-mentioned upper body and the above-mentioned lower case, and fastening to carrying out between above-mentioned the 2nd maintaining part and above-mentioned the 2nd flank at least,

Under the bonding state that is undertaken by above-mentioned the 2nd bonded block, above-mentioned the 2nd maintaining part and above-mentioned the 2nd flank keep the foregoing circuit substrate by fastening in the mode of sandwiching, and become above-mentioned the 1st flank than the bonding state that is undertaken by above-mentioned the 1st bonded block more firmly by the state that is pressed on the foregoing circuit substrate.

10. according to the supporting construction of each described circuit substrate unit in the claim 1 to 9, it is characterized in that,

The foregoing circuit substrate has weld part,

The supporting construction of foregoing circuit base board unit comprises:

Engaging recessed part is provided with to devices spaced apart a plurality of these engaging recessed parts on one the edge in above-mentioned upper body and above-mentioned lower case, and along the long dimensional directions of foregoing circuit substrate this engaging recessed part is set at least; And

The engaging protuberance engages protuberance with the double-type mode of above-mentioned engaging recessed part this to be set on another person's the edge in above-mentioned upper body and above-mentioned lower case;

The side of the side of above-mentioned engaging recessed part and above-mentioned engaging protuberance is relative with face each other under the state that separates along the long dimensional directions part of foregoing circuit substrate, under the state of horizontal supporting circuit substrate unit, the side of above-mentioned engaging recessed part is separated with the side of above-mentioned engaging protuberance, and the circuit substrate unit is produced under the crooked bearing state, in the strain value of above-mentioned weld part is no more than the scope of tolerance range, the side of above-mentioned engaging recessed part and the side of above-mentioned engaging protuberance are contacted.

11. circuit substrate according to claim 10 unit is characterized in that,

The bearing state of above-mentioned generation bending is that the foregoing circuit base board unit is at least the outstanding bearing state of holding.

12. circuit substrate according to claim 10 unit is characterized in that,

The bearing state of above-mentioned generation bending is the state that utilizes the above-mentioned operator's compartment assembly of two supports of above-mentioned crossbeam.

13. the supporting construction according to each described circuit substrate unit in the claim 10 to 12 is characterized in that,

Above-mentioned engaging protuberance comprises: a portion that falls, and it is used to receive the head of screw; And through hole, it runs through for the threaded portion;

By making above-mentioned engaging protuberance be sticked in above-mentioned engaging recessed part, form and construct carrying out interim stack-mounted between above-mentioned upper body and the above-mentioned lower case,

With above-mentioned engaging recessed part with above-mentioned engage between the protuberance engaging as, to the limiting part that carries out before above-mentioned screw fastening and above-mentioned upper body when carrying out above-mentioned screw fastening and the dislocation of above-mentioned lower case on the long dimensional directions of foregoing circuit substrate limit.

14. the supporting construction according to each described circuit substrate unit in the claim 10 to 13 is characterized in that,

On the periphery of the basal surface of above-mentioned upper body, be provided with the perimeter side walls portion of frame shape, this perimeter side walls portion outstanding downwards and within it portion hold above-mentioned lower case,

A plurality of positions in above-mentioned perimeter side walls portion are provided with otch, acceptance division are set as above-mentioned engaging recessed part in the position of this otch, and this acceptance division is used for the threaded portion of the above-mentioned screw of spinning.

15. the supporting construction according to each described circuit substrate unit in the claim 1 to 14 is characterized in that,

The supporting construction of foregoing circuit base board unit comprises:

Electric wiring, it is electrically connected with the foregoing circuit substrate; And

Rib, it is erect to outside direction from above-mentioned upper body and is provided with, and utilizes installing component that above-mentioned electric wiring is installed on this rib;

The installation direction of setting for when utilizing above-mentioned installing component on above-mentioned rib above-mentioned electric wiring to be installed becomes the direction different with the direction of external force, this external force be after the foregoing circuit base board unit is arranged on above-mentioned mounted piece operation medium high frequency degree be applied to the external force of foregoing circuit base board unit and above-mentioned electric wiring.

16. the supporting construction of circuit substrate according to claim 15 unit is characterized in that,

Above-mentioned upper body comprises: have the part of electric wiring configuration side, this electric wiring configuration side is the side with the above-mentioned electric wiring of state configuration that separates; And the part with the non-configuration of electric wiring side, on the non-configuration of this electric wiring side, do not dispose above-mentioned electric wiring;

Make part thicker than part with above-mentioned electric wiring configuration side with the non-configuration of above-mentioned electric wiring side,

Make the height height of the above-mentioned electric wiring configuration of the aspect ratio side of the non-configuration of above-mentioned electric wiring side, thereby utilize above-mentioned electric wiring configuration side and the non-configuration of above-mentioned electric wiring side to form step,

With the cardinal extremity of above-mentioned rib as the non-configuration of above-mentioned electric wiring side, thereby the setting of shortening above-mentioned rib is provided with length.

17. the supporting construction of circuit substrate according to claim 16 unit is characterized in that,

The part that increases of the non-configuration side of the electric wiring of above-mentioned upper body is made as the structure that improves rigidity,

The non-configuration side of the electric wiring of above-mentioned upper body is installed on the above-mentioned mounted piece, thereby the foregoing circuit base board unit is set on the mounted piece.

18. the supporting construction according to each described circuit substrate unit in the claim 1 to 17 is characterized in that,

Above-mentioned upper body comprises:

Strengthening part, its rigidity of long dimensional directions that makes above-mentioned upper body is than the rigidity height of the long dimensional directions of above-mentioned lower case; And

Installation portion on the part that it is arranged in the edge part of relative at least short dimension side with above-mentioned strengthening part links to each other, and is used for the foregoing circuit base board unit is installed to above-mentioned member for mount;

Above-mentioned lower case comprises latch for printed circuit, and this latch for printed circuit is limited to the position that is provided with above-mentioned strengthening part of above-mentioned upper body.

19. the supporting construction of circuit substrate according to claim 18 unit is characterized in that,

On the part of the whole and short dimensional directions of the long dimensional directions of above-mentioned upper body, in above-mentioned upper body and scope that above-mentioned member for mount overlaps, above-mentioned strengthening part is set.

20. the supporting construction according to claim 18 or 19 described circuit substrate unit is characterized in that,

Above-mentioned strengthening part be with above-mentioned upper body be arranged to increase the foregoing circuit substrate the top the space the end face shape and on the end face of above-mentioned upper body, erect a plurality of strengthening ribs be set.

21. the supporting construction of circuit substrate according to claim 20 unit is characterized in that,

The above-mentioned strengthening rib that will on the long dimensional directions of foregoing circuit base board unit, extend and with long dimensional directions roughly the upwardly extending above-mentioned strengthening rib in side of quadrature be configured to reticulation.

22. the supporting construction according to claim 20 or 21 described circuit substrate unit is characterized in that,

The part that setting is provided with in a plurality of above-mentioned strengthening ribs is extended with single structure on the long dimensional directions of foregoing circuit base board unit.

23. the supporting construction according to each described circuit substrate unit in the claim 20 to 22 is characterized in that,

Be provided with the cable installation portion on the upper surface of above-mentioned upper body, the cable that this cable installation portion is used for extending on the long dimensional directions of foregoing circuit base board unit is installed to the foregoing circuit base board unit,

With the direction of the long dimensional directions quadrature of foregoing circuit base board unit on, be provided with in the position that overlaps with above-mentioned cable installation portion and erect a part that is provided with in a plurality of above-mentioned strengthening ribs.

24. the supporting construction according to each described circuit substrate unit in the claim 19 to 23 is characterized in that,

Above-mentioned member for mount is a bodywork component long on the left and right directions of vehicle,

On the lower surface of above-mentioned lower case, be not provided with adaptor union on the superposed part with above-mentioned member for mount, this adaptor union is used for the foregoing circuit substrate is electrically connected with the outside.

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