CN1885651B - Electric connection box - Google Patents
Electric connection box Download PDFInfo
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- CN1885651B CN1885651B CN2006100940879A CN200610094087A CN1885651B CN 1885651 B CN1885651 B CN 1885651B CN 2006100940879 A CN2006100940879 A CN 2006100940879A CN 200610094087 A CN200610094087 A CN 200610094087A CN 1885651 B CN1885651 B CN 1885651B
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Abstract
An electric connection box provided with a circuit structure, a casing for accommodating the circuit structure therein, a plurality of bus bar terminals disposed on a cabling path crossing the casing in a horizontal direction and electrically connecting the circuit structure and an external connecter to each other, and a terminal support portion for supporting a horizontal portion crossing the casing in the horizontal direction in the plurality of bus bar terminals from below, in which a first rib capable of contact with the horizontal portion from below are projected on a surface opposite to the horizontal portion in the terminal support portion, and a space between the first rib is a first groove portion recessed downward.
Description
Technical field
The present invention relates to a kind of electric connection box.
Background technology
As last electric connection boxes that carries such as automobiles, the known spy of having opens the described device of 2004-40873 communique.This electric connection box has the casing that joint has the circuit substrate of bus and accommodates this circuit substrate.And form a plurality of fuse splicing ears and signal terminal in the bus.The fuse splicing ear is configured in the mode of the upper surface of the middle housing that extends from the upper end of circuit substrate and be provided with in the casing, and forms its top and project upwards.On the other hand, the signal terminal, extending from the lower end of circuit substrate and the mode of bottom surface in the middle housing is configured, and it is outstanding downwards to form its top.
When rainfall, cleaning etc. caused water droplet to be immersed in the casing, this water droplet was understood the upper surface of wetting middle housing or the bottom surface in the middle housing sometimes but in the above-described configuration.So, be configured between a plurality of terminals of its upper surface or bottom surface risk of short-circuits is arranged.Particularly, these a plurality of terminals are because the relation of space size etc., and the interval that as far as possible reduces terminal mostly disposes, and in this case, it is more obvious that the problems referred to above become.
Summary of the invention
The objective of the invention is to: in the electric connection box that carries on automobile etc., the bus terminal that prevents configuration in the casing of this electric connection box is because of the water droplet short circuit.
First invention is a kind of electric connection box, has: the circuit constituting body; The foregoing circuit constituting body is housed in inner casing; A plurality of bus terminals adopt in the horizontal direction that the routing path of the above-mentioned casing of crosscut is configured, and are electrically connected between foregoing circuit constituting body and the aerial lug; And terminal support portion, horizontal part in downside supports the above-mentioned casing of crosscut in the horizontal direction above-mentioned a plurality of bus terminal, wherein, in the face relative in above-mentioned terminal support portion with above-mentioned horizontal part, with each position of above-mentioned horizontal part correspondence on, it can be first groove to lower recess between above-mentioned each first timber from first timber of downside and above-mentioned horizontal part butt that projection is provided with.
According to first invention, can increase the creepage distance between adjacent bus terminal, increased the amount of the sagging part of first groove.Therefore be difficult to arrive the horizontal part of other adjacent bus terminals attached to the moisture of bus terminal horizontal part, can prevent the short circuit between the bus terminal.
And in first invention, " horizontal direction " is meant the direction with circuit constituting body approximate vertical, is not meant " level " when being benchmark with ground.
Second invention is a kind of electric connection box, and the width of in wherein above-mentioned first timber and bearing surface above-mentioned horizontal part butt is less than the width of above-mentioned horizontal part.
According to second invention, thereby can prevent to form the bight water retention in this bight by the side of the horizontal part of the bearing surface of first timber and bus terminal.Can prevent the short circuit between the bus terminal thus.
The 3rd invention is a kind of electric connection box, wherein, the rake that descends along the length direction of above-mentioned first groove is set on the bottom surface of above-mentioned first groove.
According to the 3rd invention, the moisture that passes to each first groove is directed into the rake that is provided with on its bottom surface and falls, and is easy to discharge from terminal support portion.Therefore can prevent that water retention is on terminal support portion.Thereby can prevent the short circuit between the bus terminal more effectively.
The 4th invention is a kind of electric connection box, wherein, the displacement restrictions is set in above-mentioned casing, it limits above-mentioned horizontal part angular displacements by push above-mentioned horizontal part from upside, in the face relative in above-mentioned displacement restrictions with above-mentioned horizontal part, with each position of above-mentioned horizontal part correspondence on, projection is provided with can be from second timber of upside and above-mentioned horizontal part butt, be second groove of depression upwards between above-mentioned each second timber.
According to the 4th invention, attached to the moisture of bus terminal horizontal part, the amount corresponding of can upwards escaping with the degree of depth of second groove.Thereby can suppress moisture diffusion in the horizontal direction, therefore can prevent the short circuit between adjacent bus terminal attached to horizontal part.
The 5th invention is a kind of electric connection box, wherein, width is set than other regional narrow narrow on above-mentioned horizontal part.
According to the 5th invention, owing on the horizontal part of bus terminal, be provided with narrow, therefore can enlarge the distance between the horizontal part of adjacent bus terminal.In this case, be difficult to arrive on other adjacent horizontal parts, thereby can avoid short circuit between the bus terminal attached to the moisture of horizontal part.
And in order to enlarge the distance between the horizontal part, can consider the bus terminal is all reduced width.But, therefore corresponding with it because bigger electric current flow in the circuit constituting body, with the also bigger electric current of inflow in the bus terminal that the circuit constituting body is connected.Therefore when the bus terminal was all reduced width, existence can't be guaranteed the danger of necessary current amount.And, when the bus terminal all attenuates, under the situation, the danger that produces excessive deformation and lose is arranged when being connected etc. with aerial lug.Therefore in the 5th invention, only horizontal part is provided with narrow.So, when can guarantee rigidity, the electric power amount of bus terminal to a certain extent, prevent the short circuit between the bus terminal.
The 6th invention is a kind of electric connection box, wherein, above-mentioned a plurality of bus terminal, the end that is connected the opposite side of a side on the foregoing circuit constituting body in the above-mentioned horizontal part begins, on above-mentioned horizontal part crisscross, extend, and on the part of this extension, the connecting portion that can be connected with the said external connector is set.
According to the 6th invention, effect has the extruding force or the tensile force of the loading and unloading of following aerial lug etc. on the connecting portion of bus terminal, is provided with narrow on the horizontal part of bus terminal, and the bus terminal is easy to bending in this narrow.Therefore even be squeezed time spent of doing of power, tensile force at the bus terminal, also can absorb this extruding force, tensile force.Thereby can prevent the losing of bus terminal (bending) in the coupling part between bus terminal and the circuit constituting body.
The 7th invention is a kind of electric connection box, wherein, keeps two ends on the wiring direction of above-mentioned horizontal part and above-mentioned narrow is set.
According to the 7th invention, the width size of the bus terminal that two ends maintenances in the horizontal part of bus terminal are original, so the horizontal part of bus terminal has full intensity.Therefore, also can prevent the losing of bus terminal in the coupling part between bus terminal and the circuit constituting body even when on the bus terminal, narrow being set.
The 8th invention is a kind of electric connection box, wherein, is provided with from above-mentioned two tapered portion that the end narrows down gradually to above-mentioned narrow width between above-mentioned narrow and above-mentioned two ends.
According to the 8th invention, when the bus terminal bends, can avoid two ends and the junction between the narrow in the horizontal part of bus terminal to concentrate excessive stress.Thereby can prevent losing of bus terminal.
Description of drawings
Fig. 1 is the outward appearance perspective view of the electric connection box that relates to of first execution mode.
Fig. 2 is the perspective view of the state before assembling framework and the bottom connector in the electric connection box that relates to of expression first execution mode, on the circuit constituting body.
Fig. 3 is the perspective view of framework.
Fig. 4 is the side cross-sectional view of the electric connection box that relates to of first execution mode.
Fig. 5 is in the electric connection box that relates to of expression first execution mode, the horizontal part of side bus terminal is by the part amplification sectional view of the state of first timber and the second timber clamping down.
Fig. 6 is the perspective view of the state before assembling framework and the bottom connector in the electric connection box that relates to of expression second execution mode, on the circuit constituting body.
Fig. 7 is the side cross-sectional view of the electric connection box that relates to of expression second execution mode.
Fig. 8 is in the electric connection box that relates to of expression second execution mode, the horizontal part of side bus terminal is by the part amplification sectional view of the state of first timber and the second timber clamping down.
Fig. 9 is the side cross-sectional view of the electric connection box that relates to of the 3rd execution mode.
Embodiment
(first execution mode)
Below referring to figs. 1 through Fig. 5 first execution mode of the present invention is described.
Fig. 1 is the outward appearance perspective view of the electric connection box 1 of present embodiment.Fig. 2 is the perspective view that is illustrated on the circuit constituting body 10 state before assembling framework 21 and the bottom connector 40.
Below, for the direction of each parts that constitute electric connection box 1, with the front left side (lid 30 1 sides) of Fig. 1 be a positive side, with Right Inboard (casing 20 1 sides) be the back side one side, be the top with the upside, with the downside be the below, with the right side be right-hand, be that left describes with the left side.
Electric connection box 1 as shown in Figures 1 and 2, will have the circuit constituting body 10 of circuit substrate 11 and bus (bus-bar) 12, vertically place to be housed in the casing 20 that is made of framework 21 and heating panel 22, and cover front one side of this casing 20 with lid 30.
The circuit substrate 11 of forming circuit constituting body 10, as shown in Figure 2, what be rectangle on the whole is tabular, and the zone of the roughly left-half of its lower edge is the 11S of sloping edge portion that tilts with respect to upper end-face edge.Front at this circuit substrate 11 forms the conductive pattern (not shown) that constitutes control circuit.And, switch blocks 13 such as relay are installed in the front of this circuit substrate 11.
Joint has bus 12 at the back side of circuit substrate 11.Bus 12 penetrates the metallic plate of excellent electric conductivity and forms, and forms the predetermined conducting channel as power circuit.This bus 12 forms the outer shape with circuit substrate 11 basic couplings, and edge and lower limb configuration thereon is as a plurality of bus terminals 14,15,16 of external circuit terminal for connecting.
Be configured in the bus terminal 14,15 of upside, the last side bus terminal 14 except a right-hand member bus terminal 15 that is configured in its right-hand member roughly at right angles is erected at a positive side with respect to circuit substrate 11.That is, last side bus terminal 14 is by the horizontal part 14A that extends to horizontal direction from circuit substrate 11, and constitute with the connecting portion 14B that circuit substrate 11 almost parallels extend upward from the elongated end of this horizontal part 14A.In addition, be formed for inserting the slit of fuse on the top of this connecting portion 14B.Right-hand member bus terminal 15 is made of following each several part: the horizontal part 15A that extends to horizontal direction from circuit substrate 11; After extending with circuit substrate 11 almost parallels upward from the elongated end of this horizontal part 15A, again to right-hand, then to the transhipment department 15B of a positive lateral bending song; And from the outstanding downwards connecting portion 15C of the end edge of front one side of this transhipment department 15B.
And in the present embodiment, " horizontal direction " is meant the direction with respect to circuit constituting body 10 approximate vertical, may not be with respect to ground level.
On the other hand, in the lower limb of circuit substrate 11, the zone of keeping right than the 11S of sloping edge portion, promptly with the zone of top edge almost parallel in, be arranged with a plurality of down side bus terminals 16 on left and right directions side by side, this time side bus terminal 16 is made of following each several part: from the horizontal part 16A of circuit substrate 11 to the horizontal direction extension; And the connecting portion 16B that extends with circuit substrate 11 almost parallels (to the direction of intersecting with horizontal part 16A) downwards from the elongated end (end of a side opposition side that engages with circuit constituting body 10) of this horizontal part 16A.In addition, a plurality of go up side bus terminals 14 and down side bus terminal 16 be configured with the little interval of trying one's best because of spatial relationship etc.
Fig. 3 is the perspective view of framework 21.As mentioned above, the casing 20 of accommodating circuit constituting body 10 has framework 21 and heating panel 22 (with reference to Fig. 1, Fig. 4).
As shown in Figure 3, framework 21 is formed by insulating material such as synthetic resin.Framework 21 roughly forms " U " word shape on the whole in the mode along lower limb in circuit substrate 11 peripheries and left and right edges.Particularly, this framework 21 has: along the 21S of tilt frame portion of the 11S of sloping edge portion of circuit substrate 11; Lower frame 21B along the right side area of circuit substrate 11 lower limb medium dip edge part 11S; The left frame 21L of portion along the left hand edge portion of circuit substrate 11; With the right frame 21R of portion along the right hand edge portion of circuit substrate 11.Be provided with the connecting portion 23 (simultaneously with reference to Fig. 2) that is used to connect left frame 21L of portion and the right frame 21R of portion on the top of framework 21.This connecting portion 23, than the upper end of left frame 21L of portion and the right frame 21R of portion slightly by under the position on, be connected to each other left frame 21L of portion and the right frame 21R of portion.Connecting portion 23 roughly forms the quadrangular shape.The upper surface of connecting portion 23, with in the lower surface of the horizontal part 14A of last side bus terminal 14 near the part butt of circuit substrate 11.Connecting portion 23 is from the lower surface one side support level 14A of portion (simultaneously with reference to Fig. 4).And, on the front (with the face of circuit substrate 11 opposite sides) of connecting portion 23, be provided with flange 24.On the roughly center position of the above-below direction in the front of connecting portion 23, this flange 24 is set along the length direction of connecting portion 23.Flange 24 is set to positive one side-prominent.And, forming a plurality of tabular ribs 25 in the front of this connecting portion 23, its plate face direction is with respect to the length direction approximate vertical of connecting portion 23.This rib 25 is provided with in the front of connecting portion 23, on each position corresponding with the horizontal part 14A of last side bus terminal 14.And, the upper surface flush of the upper surface of each rib 25 and connecting portion 23.In addition, the thickness of slab of rib 25 forms forr a short time than the width of the horizontal part 14A of last side bus terminal 14.
Fig. 4 is the side cross-sectional view of the electric connection box 1 in the present embodiment.
As shown in Figure 4, below lid 30, be assembled with bottom connector 40.That bottom connector 40 has is laterally long, to the plastic shell 41 of lower surface one side opening, aerial lug is fitted on this shell 41 from the below.
In the upper surface 44 at top 42, on the position of each and horizontal part 16A correspondence, be provided with first timber 45 (with reference to Fig. 2).This first timber 45 can abut to down the horizontal part 16A of side bus terminal 16 from downside.
The top 42 of shell 41 is provided with the through hole 43 that connects on above-below direction.This through hole 43 is arranged on the position of connecting portion 16B correspondence of each and following side bus terminal 16.Connecting portion 16B connects this through hole 43 and is housed in the shell 41.Connecting portion 16B, its front end is tapering shape, is inserted on the opposite side terminal of installing on the aerial lug (not shown).In addition, bottom connector 40 about be provided with in two sides and be used for this bottom connector 40 is fixed on installation portion 46 on the framework 21.
As Fig. 2～shown in Figure 4, on the top position of bottom connector 40, be provided with bulkhead 50.The lower frame 21B almost parallel of this bulkhead 50 and framework 21 forms tabular shape.Be provided with the connecting portion 51 that connects bulkhead 50 and framework 21 in the left and right sides of bulkhead 50.Particularly, this connecting portion 51 connects position near the lower end of the right frame 21R of portion of framework 21, and the right-hand member of bulkhead 50.Equally, connecting portion 51 connects substantial middle position, and the left end of bulkhead 50 of the tilt frame 21S of portion.
The width of bulkhead 50, than the zone of the horizontal part 16A that are provided with a plurality of down side bus terminals 16, and the width of bottom connector 40 bigger.The end edge in lid 30 1 sides of this bulkhead 50 arrives near the back side of cover plate portion 31.On the other hand, the end edge in circuit constituting body 10 1 sides of this bulkhead 50 is embedded in the encapsulating material (not shown) in front of the circuit substrate 11 that is covered.
The upper surface of bulkhead 50 is the taper surface 52 that the summit tilts downwards towards left and right sides both end sides for the approximate centre position with left and right directions.Two ends, the left and right sides at this bulkhead 50 are provided with waterproof side wall portion 53 downwards.The bottom of this waterproof side wall portion 53 arrives the top 42 of bottom connector 40.The side of outermost horizontal part 16A under this waterproof side wall portion 53 covers among the horizontal part 16A of side bus terminal 16.And,, sealing wall 54 is set upwards in the end edge in lid 30 1 sides of bulkhead 50.This sealing wall 54 is projected into the position of the lower surface of the guide plate 33 that is provided with on the back side that roughly arrives lid 30.This sealing wall 54 spread all over bulkhead 50 about all width form.
Be integrally formed with displacement restrictions 55 (with reference to Fig. 3) in the bottom of bulkhead 50.This restrictions 55 that is shifted by from upside extruding horizontal part 16A, is come the 16A of limit levels portion displacement upward.That is, horizontal part 16A, chimeric by to the aerial lug of shell 41 pushed upward.The upside of horizontal part 16A is by 55 extruding of displacement restrictions, so horizontal part 16A displacement upward is limited but in the present embodiment.
As shown in Figure 4, the back side of lid 30 is provided with guide plate 33.This guide plate 33 is arranged on the top of sealing wall 54, and is side-prominent from the back side one of the cover plate portion 31 of lid 30.And this guide plate 33 arrives the position that side direction overleaf surpasses the top of sealing wall 54 slightly.The upper surface of this guide plate 33 is towards the downward-sloping guide surface 34 of jag.
Then above-mentioned first timber 45 and second timber 58 are elaborated.
Fig. 5 is the part amplification sectional view that the horizontal part 16A of side bus terminal 16 under the expression is sandwiched in the state between first timber 45 and second timber 58.Among this external Fig. 5, for convenience with the aid of pictures, be illustrated in the state that has the gap between first timber 45, second timber 58 and the horizontal part 16A.But generally speaking, it is the state (contact condition) of mutual butt.
And, between each first timber 45, for from bearing surface 47 to lower recess first groove 48 of projecting height part of first timber 45.In the bottom surface 49 of this first groove 48, be provided with along the length direction of each first groove 48, the rake 49A (with reference to Fig. 2, Fig. 4) that in other words tilts along the length direction of each first timber 45.This rake 49A descends towards circuit substrate 11 sides.
On the other hand, second timber 58 is set to from the lower surface 57 of displacement restrictions 55 outstanding downwards.Second timber 58 is from upside and each horizontal part 16A butt.Second timber 58 is the elongated shape along horizontal part 16A as shown in Figure 3.And the width of the left and right directions of second timber 58 is than the width (" left and right directions " here is meant the direction that a plurality of second timbers 58 are arranged) of the left and right directions of each horizontal part 16A.And, between each second timber 58, be caved in upward second groove 59 of projecting height part of second timber 58 of the lower surface from second timber 58.
Then to as above the effect and the effect of the electric connection box 1 of formation describe.
When being immersed in the inside of electric connection box 1 because of water droplets such as rainfall, vehicle cleanings, its water droplet can arrive the upper surface 44 of bottom connector 40 sometimes, and attached to the following periphery of the horizontal part 16A of side bus terminal 16.At this moment, the water droplet attached to the periphery of horizontal part 16A passes to the upper surface of bottom connector 40, and flows to adjacent other horizontal parts 16A.When therefore between each horizontal part 16A, not having first groove 48, be attached to the water droplet of this horizontal part 16A periphery, diffusion in the horizontal direction in the upper surface 44 at top 42, the possibility that therefore arrives adjacent other horizontal parts 16A is very big.Particularly, spatial relationship etc. design as far as possible hour between the side bus terminal 16 owing to will be descended, can't fully guarantee the creepage distance between the horizontal part 16A, even therefore a spot of attachment of moisture is only arranged on the upper surface 44 of bottom connector 40, also might short circuit between the adjacent following side bus terminal 16.
But,,, therefore can guarantee that the creepage distance between the adjacent horizontal part 16A is longer owing between each first timber 45, there is first groove 48 according to the electric connection box 1 of present embodiment.Therefore the moisture attached to horizontal part 16A periphery is difficult to arrive adjacent other horizontal parts 16A, can prevent down the short circuit of side bus terminal 16.
And when the width of first timber 45 formed greater than horizontal part 16A, bearing surface 47 was projected into the Width outside from horizontal part 16A.At this moment, the side by bearing surface 47 and horizontal part 16A (face vertical with bearing surface 47) forms the bight, and this bight can retain moisture.But in the present embodiment, the width of the left and right directions of the bearing surface 47 of first timber 45 can not form the bight less than the width (with reference to Fig. 5) of the left and right directions of horizontal part 16A at horizontal part 16A periphery, therefore can avoid the problems referred to above.
Further, drop onto the water droplet of first groove 48, on the rake 49A that is provided with on this bottom surface 49, move, be directed into first groove 48 the edge part in circuit substrate 11 sides, be the edge part of the back side one side of the upper surface 44 of bottom connector 40, and drop onto the back side one side of bottom connector 40 from here.So water droplet is easy to discharge from the bottom surface 49 of first groove 48, thus water droplet can not remain in first groove 48, be between adjacent each horizontal part 16A, can prevent down the short circuit between the side bus terminal 16 more effectively.
And, on the lower surface 57 of displacement restrictions 55, be provided with second timber 58, between each second timber 58 second groove 59 that caves in upward respectively.Wherein, second groove 59, lower surface 57 are not set when smooth on the lower surface 57 of displacement restrictions 55, the lower surface 57 of displacement restrictions 55 and the upper surface of horizontal part 16A butt mutually on whole.In this case, the water droplet that is attached to horizontal part 16A is shifted extruding between the bottom surface 49 of the lower surface 57 of restrictions 55 and first groove 48, and the close clearance between them is spread in the horizontal direction.But according to present embodiment, attached to the water droplet of horizontal part 16A periphery, therefore the degree of depth part of second groove 59 of can escaping upward can suppress water droplet diffusion in the horizontal direction.Therefore can prevent more effectively water droplet advancing between the adjacent horizontal part 16A, short circuit between the side bus terminal 16 down.
As mentioned above, according to present embodiment, in the upper surface 44 at the top 42 of bottom connector 40, on each position corresponding with the horizontal part 16A of following side bus terminal 16, the projection setting abuts to first timber 45 of each horizontal part 16A from downside.And, be respectively first groove 48 of depression downwards between each first timber 45.So, can prolong the creepage distance between the horizontal part 16A of adjacent following side bus terminal 16, prolong the amount of the degree of depth of first groove 48.Therefore the water droplet attached to horizontal part 16A is difficult to arrive adjacent other horizontal parts 16A, has avoided the short circuit between time side bus terminal 16.
Further, in the bottom surface 49 of first groove 48, be provided with the rake 49A that descends along the length direction of each first groove 48.So, the water droplet that passes to each first groove 48 is directed into the rake 49A that is provided with on this bottom surface 49 and falls, and is easy to discharge from the top 42 of bottom connector 40.Therefore avoid becoming the state of water retention on this top 42, prevented the short circuit between time side bus terminal 16 conscientiously.
And, in the lower surface 57 of displacement restrictions 55, on each position corresponding with horizontal part 16A, second timber 58 of projection setting from upper side abuts to each horizontal part 16A.And, be second groove 59 that caves in upward between each second timber 58.So, water droplet attached to horizontal part 16A, can not be extruded in the close gap between the bottom surface 49 of the displacement lower surface 57 of restrictions 55 and first groove 48, therefore the amount of the degree of depth part of second groove 59 of can escaping upward can suppress the diffusion to horizontal direction.Therefore can avoid water droplet to make short circuit between the side bus terminal 16 down advancing between the adjacent horizontal part 16A.
(second execution mode)
Followingly second execution mode of the present invention is described with reference to Fig. 6, Fig. 7, Fig. 8.
Fig. 6 is the perspective view of the state before assembling framework 21 and the bottom connector 40 in the electric connection box 60 that relates to of expression second execution mode, on circuit constituting body 10.Fig. 7 is the side cross-sectional view of the electric connection box 60 that relates to of second execution mode.Fig. 8 is in the electric connection box 60 that relates to of expression second execution mode, the horizontal part 16A of side bus terminal 16 is sandwiched in the part amplification sectional view of the state between first timber 45 and second timber 58 down.
The difference of the electric connection box 1 that the electric connection box 60 that second execution mode relates to and first execution mode relate to is that the horizontal part 16A of following side bus terminal 16 is provided with narrow 18.Other formations are identical with first execution mode, therefore are marked with identical label, and omit its explanation.
To shown in Figure 8, in the horizontal part 16A of following side bus terminal 16, on its edge, left and right sides, form notch 17 as Fig. 6.So, formed the width narrow 18 littler at horizontal part 16A than other partial widths.
Keep two ends 19 in the wiring direction (length direction) of horizontal part 16A, and on the zone of the center side of these two ends 19, form notch 17.Two ends 19 of horizontal part 16A keep original width and keep.
And two ends of notch 17 are (Width center one side) rake 17A of tilting to the inside towards a central side time.In horizontal part 16A, form the part of rake 17A, for becoming big tapered portion 18A gradually towards wiring direction both end sides width.
When being immersed in the inside of electric connection box 60 because of water droplets such as rainfall, vehicle cleanings, this water droplet can arrive the upper surface 44 of bottom connector 40 sometimes, attached to the periphery of the horizontal part 16A that descends side bus terminal 16.At this moment, pass to the upper surface of bottom connector 40 attached to the water droplet of the periphery of horizontal part 16A, and flow to adjacent other horizontal parts 16A.
Owing to be provided with narrow 18 on each horizontal part 16A, the distance between the therefore adjacent horizontal part 16A becomes big but in the present embodiment.So, be difficult to arrive adjacent other horizontal parts 16A, avoided the short circuit between time side bus terminal 16 attached to the moisture of horizontal part 16A.
And in the last few years, along with the sharp increase of carrying the electronic product on automobile, the magnitude of current of the circuit constituting body 10 of flowing through also increased, and was corresponding with it, the design that also needs to bear the bigger to a certain extent magnitude of current in following side bus terminal 16.Therefore in the present embodiment, be not on side bus terminal 16 total lengths width to be diminished down, but on the horizontal part 16A that joins at the top 42 that is easy to retain with water droplet narrow 18 be set.So, the magnitude of current can be guaranteed, the short circuit between the side bus terminal 16 can be avoided down simultaneously.
As mentioned above, according to present embodiment, on the horizontal part 16A of following side bus terminal 16, narrow 18 is set.So, the distance between the horizontal part 16A of adjacent following side bus terminal 16 becomes big, has increased the amount of narrowed width.Therefore, be difficult to arrive adjacent other horizontal part 16A, can avoid down the short circuit between the side bus terminal 16 attached to the moisture of horizontal part 16A.And, because narrow 18 only is set, therefore can guarantee the magnitude of current of side bus terminal 16 energisings downwards to a certain extent on horizontal part 16A, can avoid down the short circuit between the side bus terminal 16 simultaneously.
(the 3rd execution mode)
Followingly the 3rd execution mode of the present invention is described with reference to Fig. 9.
Fig. 9 is the side cross-sectional view of the electric connection box 70 that relates to of the 3rd execution mode.
The difference of the electric connection box 70 that the 3rd execution mode relates to and first execution mode or second execution mode is, displacement restrictions 55 is not set in the bottom of bulkhead 50.That is, in the 3rd execution mode, the displacement restrictions 55 of coming the 16A of limit levels portion displacement upward by the horizontal part 16A of side bus terminal 16 under the upside extruding is not set.In addition, other formations are identical with first or second execution mode, therefore be marked with identical label, and the repetitive description thereof will be omitted.
On the bottom connector 40 of electric connection box 70 during chimeric aerial lug, by the connecting portion 16B of side bus terminal 16 and the friction of opposite side terminal down, the extruding force that connecting portion 16B effect is made progress.Wherein, in the present embodiment, different with first execution mode, horizontal part 16A is not pushed from upside by displacement restrictions 55, therefore the extruding force that makes progress that is applied to connecting portion 16B acts on bonding part between bus 12 and the heating panel 22 via horizontal part 16A, so exist this bonding part to produce the danger of peeling off equivalent damage.But in the present embodiment, owing on horizontal part 16A, be provided with narrow 18, so the easy elastic bending of horizontal part 16A, act on the extruding force that makes progress of connecting portion 16B, absorb by the distortion that bending produced because of horizontal part 16A.So, in the root portion of horizontal part 16A, can avoid the coupling part generation between bus 12 and the heating panel 22 to peel off equivalent damage.So, along with the loading and unloading of aerial lug etc. the extruding force to side bus terminal 16 down of effect, when frictional force is big, narrow 18 is set on horizontal part 16A preferably.So, not only can avoid down the short circuit between the side bus terminal 16 as far as possible, but and absorption in down extruding force, the frictional force of side bus terminal 16.
In addition, be easy to bending, can consider to make down the width of side bus terminal 16 thinner on total length, but so, following side bus terminal 16 can produce excessive distortion even the danger of losing in order to make down side bus terminal 16.But in the present embodiment, only be horizontal part 16A, therefore can guarantee side bus terminal 16 integral intensity down to a certain extent, make down side bus terminal 16 be easy to bending simultaneously owing to what narrow 18 was set.
Therefore and two ends 19 of horizontal part 16A are parts that king-sized power effect is arranged along with the chimeric generation of aerial lug, and when the undercapacity of this part, following side bus terminal 16 has the danger of losing.But the width of the following side bus terminal 16 that two ends, 19 maintenances of horizontal part 16A are original has full intensity in the present embodiment.Therefore, when to bottom connector 40 chimeric aerial lugs, can avoid down side bus terminal 16 to lose.
Further, between two ends 19 and narrow 18, be provided with the tapered portion 18A that diminishes gradually to narrow 18 width from two ends 19.Therefore therefore, in tapered portion 18A,, and avoid under this junction side bus terminal 16 to lose because rigidity changes gradually, and excessive stress focuses on the junction between two ends 19 and the narrow 18 in the time of can avoiding horizontal part 16A flexural deformation.
(other execution modes)
The invention is not restricted to by foregoing and the illustrated execution mode of accompanying drawing, execution mode for example as described below is also contained in the technical scope of the present invention, and in addition can carry out various changes and enforcement in the scope that does not break away from purport.
(1) in the above-described embodiment, illustration with on the position of following side bus terminal 16 butts of arranging side by side on the lower edge of bus 12, the situation of first timber 45 and second timber 58 is being set, but be not limited thereto.For example, first timber and second timber also can be arranged on on the position of side bus terminal 14 butts in the arrangement arranged side by side on the upper end-face edge of bus 12.As long as the bus terminal is taked the routing path of crosscut casing in the horizontal direction, then no matter on which part of bus side by side arrangement all can.
(2) in the above-described embodiment, illustration first timber 45 is being set on the top 42 of bottom connector 40, the situation of second timber 58 is being set on the restrictions 55 in displacement, but be not limited thereto.The parts of first timber and second timber being set, being not limited to bottom connector or displacement restrictions, so long as can be from the parts of the horizontal part of downside or upper side abuts bus terminal, can be parts arbitrarily.
(3) in the above-described embodiment, illustration the left and right directions width situation littler of first timber 45 than the left and right directions width of horizontal part 16A, but be not limited thereto.First timber 45 is so long as the width of the bearing surface 47 of itself and horizontal part 16A butt gets final product less than the left and right directions width of each horizontal part 16A.For example, first timber also till its lower end the left and right directions width become big shape gradually.At this moment, the left and right directions width of the comparable horizontal part 16A in the bottom of first timber is big.
(4) in the above-described embodiment, illustration on the following side bus terminal 16 that the lower edge of bus 12 is arranged side by side, the situation of narrow 18 is set, but be not limited thereto.For example, narrow 18 also can be arranged on side bus terminal 14 in the arrangement arranged side by side on the upper end-face edge of bus 12.At this moment, by narrow 18 is set, also can prevent the short circuit between adjacent bus terminal.
(5) in the above-described embodiment, illustration form the situation of notch 17 at the edge, the left and right sides of each horizontal part 16A, but be not limited thereto.For example, in the edge, the left and right sides of horizontal part 16A, when only on any lateral edges, forming notch 17, also can form the width narrow 18 littler than other parts.
(6) in the above-described embodiment, illustration time side bus terminal 16 be with the part of bus 12 situation to a positive lateral bending Qu Ercheng, but be not limited thereto.The bus terminal is not limited to crooked bus, for example also can be that the sheet metal as terminal is joined on the bus by scolding tin.
(7) in the above-described embodiment, illustration the connecting portion 16B of time side bus terminal 16 situation of extending with circuit substrate 11 almost parallels downwards from the elongated end of horizontal part 16A, but be not limited thereto.The connecting portion of following side bus terminal is as long as extending on crisscross with horizontal part.For example, the connecting portion of following side bus terminal also can extend in the direction that tilts with respect to circuit substrate upward from the elongated end of horizontal part.
Claims (20)
1. electric connection box has:
Circuit constituting body with circuit substrate;
The foregoing circuit constituting body is housed in inner casing;
A plurality of bus terminals adopt the routing path that extends to the direction vertical with the foregoing circuit constituting body from the foregoing circuit substrate in above-mentioned casing to be configured, and are electrically connected foregoing circuit constituting body and aerial lug; With
Terminal support portion supports horizontal part above-mentioned a plurality of bus terminal from downside, and this horizontal part extends to the direction vertical with the foregoing circuit constituting body from the foregoing circuit substrate in above-mentioned casing,
Wherein, in the face relative in above-mentioned terminal support portion with above-mentioned horizontal part, with each position of above-mentioned horizontal part correspondence on, projection is provided with can be from first timber of downside and above-mentioned horizontal part butt,
It between each first timber first groove to lower recess.
2. electric connection box according to claim 1, wherein,
The width of in above-mentioned first timber and bearing surface above-mentioned horizontal part butt is less than the width of above-mentioned horizontal part.
3. electric connection box according to claim 1 and 2, wherein,
The rake that descends along the length direction of above-mentioned first groove is set on the bottom surface of above-mentioned first groove.
4. electric connection box according to claim 1 and 2, wherein,
The displacement restrictions is set in above-mentioned casing, and it limits above-mentioned horizontal part angular displacements by push above-mentioned horizontal part from upside,
In the face relative in above-mentioned displacement restrictions with above-mentioned horizontal part, with each position of above-mentioned horizontal part correspondence on, projection is provided with can be from second timber of upside and above-mentioned horizontal part butt,
It between each second timber second groove that upwards caves in.
5. electric connection box according to claim 3, wherein,
The displacement restrictions is set in above-mentioned casing, and it limits above-mentioned horizontal part angular displacements by push above-mentioned horizontal part from upside,
In the face relative in above-mentioned displacement restrictions with above-mentioned horizontal part, with each position of above-mentioned horizontal part correspondence on, projection is provided with can be from second timber of upside and above-mentioned horizontal part butt,
It between each second timber second groove that upwards caves in.
6. electric connection box according to claim 1 and 2, wherein,
On above-mentioned horizontal part, narrow is set, the width of this narrow regional narrow than beyond this narrow in this horizontal part.
7. electric connection box according to claim 3, wherein,
On above-mentioned horizontal part, narrow is set, the width of this narrow regional narrow than beyond this narrow in this horizontal part.
8. electric connection box according to claim 4, wherein,
On above-mentioned horizontal part, narrow is set, the width of this narrow regional narrow than beyond this narrow in this horizontal part.
9. electric connection box according to claim 5, wherein,
On above-mentioned horizontal part, narrow is set, the width of this narrow regional narrow than beyond this narrow in this horizontal part.
10. electric connection box according to claim 6, wherein,
Above-mentioned a plurality of bus terminal, the end that is connected the opposition side of the side on the foregoing circuit constituting body from above-mentioned horizontal part begins, on above-mentioned horizontal part crisscross, extend, and on the part of extending, the connecting portion that can be connected with the said external connector is set.
11. electric connection box according to claim 7, wherein,
Above-mentioned a plurality of bus terminal, the end that is connected the opposition side of the side on the foregoing circuit constituting body from above-mentioned horizontal part begins, on above-mentioned horizontal part crisscross, extend, and on the part of extending, the connecting portion that can be connected with the said external connector is set.
12. electric connection box according to claim 8, wherein,
Above-mentioned a plurality of bus terminal, the end that is connected the opposition side of the side on the foregoing circuit constituting body from above-mentioned horizontal part begins, on above-mentioned horizontal part crisscross, extend, and on the part of extending, the connecting portion that can be connected with the said external connector is set.
13. electric connection box according to claim 9, wherein,
Above-mentioned a plurality of bus terminal, the end that is connected the opposition side of the side on the foregoing circuit constituting body from above-mentioned horizontal part begins, on above-mentioned horizontal part crisscross, extend, and on the part of extending, the connecting portion that can be connected with the said external connector is set.
14. electric connection box according to claim 6, wherein,
Keep two ends on the wiring direction of above-mentioned horizontal part and above-mentioned narrow is set.
15. electric connection box according to claim 7, wherein,
Keep two ends on the wiring direction of above-mentioned horizontal part and above-mentioned narrow is set.
16. electric connection box according to claim 8, wherein,
Keep two ends on the wiring direction of above-mentioned horizontal part and above-mentioned narrow is set.
17. electric connection box according to claim 9, wherein,
Keep two ends on the wiring direction of above-mentioned horizontal part and above-mentioned narrow is set.
18. electric connection box according to claim 14, wherein,
Be provided with the tapered portion that respective end portions narrows down gradually to above-mentioned narrow width from above-mentioned two ends between in above-mentioned two ends each and the above-mentioned narrow.
19. electric connection box according to claim 15, wherein,
Be provided with the tapered portion that respective end portions narrows down gradually to above-mentioned narrow width from above-mentioned two ends between in above-mentioned two ends each and the above-mentioned narrow.
20. electric connection box according to claim 16, wherein,
Be provided with the tapered portion that respective end portions narrows down gradually to above-mentioned narrow width from above-mentioned two ends between in above-mentioned two ends each and the above-mentioned narrow.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005183424 | 2005-06-23 | ||
| JP2005-183422 | 2005-06-23 | ||
| JP2005-183424 | 2005-06-23 | ||
| JP2005183422 | 2005-06-23 | ||
| JP2005183422A JP4657025B2 (en) | 2005-06-23 | 2005-06-23 | Electrical junction box |
| JP2005183424A JP4651092B2 (en) | 2005-06-23 | 2005-06-23 | Electrical junction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1885651A CN1885651A (en) | 2006-12-27 |
| CN1885651B true CN1885651B (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100940879A Active CN1885651B (en) | 2005-06-23 | 2006-06-22 | Electric connection box |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4657025B2 (en) |
| CN (1) | CN1885651B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5179854B2 (en) * | 2007-12-21 | 2013-04-10 | 矢崎総業株式会社 | Plate terminal assembly structure |
| JP5384846B2 (en) * | 2008-04-03 | 2014-01-08 | 矢崎総業株式会社 | Relief terminal structure |
| WO2009131137A1 (en) * | 2008-04-22 | 2009-10-29 | 株式会社オートネットワーク技術研究所 | Vehicle-mounted electric junction box |
| EP2709222B1 (en) * | 2011-05-10 | 2019-04-24 | Nissan Motor Co., Ltd | Power shut-off unit |
| JP6131495B2 (en) | 2013-06-25 | 2017-05-24 | 矢崎総業株式会社 | Booster cable holding structure |
| JP5960107B2 (en) * | 2013-09-30 | 2016-08-02 | 東洋電装株式会社 | Detection device |
| KR101518942B1 (en) * | 2013-12-20 | 2015-05-11 | 현대자동차 주식회사 | Junction box for vehicle |
| JP2016015821A (en) * | 2014-07-02 | 2016-01-28 | 株式会社オートネットワーク技術研究所 | Electric connection box |
| JP6618510B2 (en) * | 2017-07-04 | 2019-12-11 | 矢崎総業株式会社 | Electrical junction box and wire harness |
| JP7179432B2 (en) * | 2020-03-12 | 2022-11-29 | 矢崎総業株式会社 | Drip-proof structure, connector with drip-proof structure, and electric connection box |
| JP7473588B2 (en) | 2022-05-16 | 2024-04-23 | 矢崎総業株式会社 | Electrical Junction Box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227438A (en) * | 1998-02-23 | 1999-09-01 | 住友电装株式会社 | Electrical connection box |
| US6785139B2 (en) * | 2002-01-23 | 2004-08-31 | Sumitomo Wiring Systems, Ltd. | Electric connection box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57101517U (en) * | 1980-12-12 | 1982-06-22 | ||
| JP2587666Y2 (en) * | 1993-12-28 | 1998-12-24 | 矢崎総業株式会社 | Busbar wiring board |
| JP3386109B2 (en) * | 1998-04-28 | 2003-03-17 | 日産自動車株式会社 | Busbar holding device for electric wiring board |
| JP4022440B2 (en) * | 2002-07-01 | 2007-12-19 | 株式会社オートネットワーク技術研究所 | Circuit unit |
| JP3990313B2 (en) * | 2003-04-22 | 2007-10-10 | 矢崎総業株式会社 | Electrical junction box |
| JP4140433B2 (en) * | 2003-04-25 | 2008-08-27 | アンデン株式会社 | Electrical circuit device |
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- 2005-06-23 JP JP2005183422A patent/JP4657025B2/en active Active
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227438A (en) * | 1998-02-23 | 1999-09-01 | 住友电装株式会社 | Electrical connection box |
| US6785139B2 (en) * | 2002-01-23 | 2004-08-31 | Sumitomo Wiring Systems, Ltd. | Electric connection box |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4657025B2 (en) | 2011-03-23 |
| JP2007006610A (en) | 2007-01-11 |
| CN1885651A (en) | 2006-12-27 |
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