A kind of automotive diagnosis interface fixed sturcture that is fixed on electrical appliance kit body
Technical field
The invention belongs to car electrics field, refer to especially a kind of automotive diagnosis interface fixed sturcture that is fixed on electrical appliance kit body.
Background technology
Along with the development of automotive technology, automobile information, intelligent degree are more and more higher, when automobile breaks down, need to pass through diagnosis interface, and external automobile dedicated diagnostic device is that car load carries out trouble diagnosing.
Automotive diagnosis interface is that state III discharges the indispensable interface of above car load, and car load diagnosis interface fixed form is that vehicle body sheet metal tapping bolt nut type is fixed or is directly tied on wire harness substantially in the market.Automotive diagnosis interface card is substantially realized universalization in each vehicle, and the diagnosis interface plug-in unit model of different brands is the same, but is limited to the difference of different automobile types car load structure, and the position that diagnosis interface is arranged on car load is different.
At present, the miniaturization of vehicle, multifunction become a kind of trend day by day, and vehicle greater functionality just needs more arrangement space, and for car load, to save space more and more important.Car load light-weight design becomes a kind of trend, is conducive to energy resource saving.
The diagnosis interface plug-in unit of existing technology is fixed by the mode of bolt and nut, plug-in unit fixed position is generally chosen on vehicle body sheet metal, and it is 5mm hole that panel beating is opened two diameters, is limited to the difference of different automobile types vehicle body metal plate structure, diagnosis interface plug-in unit fixed position is uncertain, as shown in Figure 1.
The shortcoming of this technology is:
1. because body structure, the structure of each vehicle are different, cause diagnosis interface plug-in unit fixed position different, search difficulty.
2. because must meet easy external diagnostor, diagnosis interface plug-in unit is easily subject to the restriction of car load insufficient space, needs reserved enough spaces on panel beating, arranges that difficulty is large.
3. generally need to design special examine a patient the check to fix lid mouthful.
4. diagnosis interface has power lead, and power taking position is fuse box, and diagnosis interface plug-in unit is far away apart from the position of fuse box, and the risk of diagnosis power lead short circuit is just larger.
5. adopt the fixed form of bolt, nut, produce efficiency of assembling low, cost is high, and this kind of assembling mode need to be assembled in car assembling workshop.
Now also have another structure, diagnosis interface is bound on wire harness by band (or electric adhesive tape), and position arranges arbitrarily, as shown in Figure 2.
The shortcoming of this technology is:
1. fixedly reliability is low.
2. because wire harness is generally arranged in the inner spaces such as instrument desk, diagnosis interface plug-in unit is searched difficulty.
3. need to design special examine a patient the check to fix lid mouthful.
4. diagnosis interface has power lead, and the fixed form safety that diagnosis interface plug-in unit is bound on wire harness is not good enough.
Summary of the invention
The object of the invention is in order to address the above problem, the invention provides a kind of new-type diagnosis interface plug-in unit fixed sturcture designing on electrical appliance kit body, apply this structure, diagnosis interface plug-in unit is fixing safe and reliable, save space, and diagnosis interface fixed position is easily unified, be not subject to the restriction of complete vehicle structure, arrangement space, car load is without customized design examine a patient the check to fix lid mouthful, and wire harness is safe and reliable, easy to assembly, produce that efficiency of assembling is high, integrated cost is low.
The present invention is achieved by the following technical solutions:
An automotive diagnosis interface fixed sturcture that is fixed on electrical appliance kit body, includes electrical appliance kit body, diagnosis interface plug-in unit fixed sturcture and diagnosis interface plug-in unit; Described diagnosis interface plug-in unit fixed sturcture and electrical appliance kit body injection moulding integrated molding, form an integral structure; Described diagnosis interface plug-in unit is flexibly connected with diagnosis interface plug-in unit fixed sturcture.
Described diagnosis interface plug-in unit fixed sturcture includes support portion a, support portion b, shell fragment a, shell fragment b, a of barb portion and the b of barb portion six parts; Described six parts and electrical appliance kit body injection moulding integrated molding.
Described support portion a and support portion b, shell fragment a and shell fragment b and a of barb portion and the b of barb portion are symmetrical.
Described support portion a and support portion b adopt L-type structure; The long limit of described L-type structure is connected with electrical appliance kit body, and the minor face of L-type structure is for connecting with diagnosis interface plug-in unit.
The depth dimensions of described L-type structure is less than the depth dimensions of diagnosis interface plug-in unit.
The upper limb of described L-type structure minor face is provided with chamfering.
The plane that the long limit of the supporting plane of described L-type structure minor face and electrical appliance kit body and L-type structure is connected is and is less than 45 degree angles.
The supporting plane of described L-type structure minor face is 25 degree angles with the plane that the long limit of electrical appliance kit body and L-type structure is connected.
Described shell fragment a is half U type structure, and shell fragment b is that semicircular structure or shell fragment a are semicircular structure, and shell fragment b is that U-shaped structure or shell fragment a and shell fragment b are semicircular structure or shell fragment a and shell fragment b and are half U type structure.
The plane at described shell fragment a and shell fragment b place is fixed on electrical appliance kit body plane with it is 45 degree to 90 degree angles.
The plane at described shell fragment a and shell fragment b place is fixed on electrical appliance kit body plane with it is 60 degree angles.
The plane place of described shell fragment a and the nearly electrical appliance kit body of shell fragment b is respectively arranged with reinforcing rib structure.
The b of barb portion of the described barb a of portion is all barb-like structure; The plane of the electrical appliance kit body that the inner top surface of described barb portion is fixing with it is and is less than 45 degree angles; The plane parallel of the electrical appliance kit body that the inner bottom surface of described barb portion is fixing with it; The inner top surface of described barb portion and the distance of inner bottom surface adopt by large and minor structure, and minor increment equates with the thickness of diagnosis interface plug-in unit.
The plane of the electrical appliance kit body that the inner top surface of described barb portion is fixing with it is 25 degree angles.
The supporting plane of the L-type structure minor face of described support portion a and support portion b is less than diagnosis interface plug-in unit thickness with the diff-H between corresponding shell fragment a and shell fragment b lowest surfaces.
The invention has the beneficial effects as follows:
1. the not restriction of current collector box inner structure, designs in electrical appliance kit body surface, grows up in 80mm meeting, and is wider than in the plane space of 25mm and all can realizes this scheme, take up room little, and injection moulding integrated molding structure design, it is low that scheme realizes difficulty.
2. because automobile has electrical appliance kit, design diagnosis interface plug-in unit fixed sturcture on electrical appliance kit, injection moulding integrated molding, is fixed on electrical appliance kit the unification of diagnosis interface plug-in unit, can realize the unified and standard of diagnosis interface position
3. support portion a, support portion b, shell fragment a, shell fragment b, a of barb portion, the b of barb portion structure ingehious design, angulation relation, has met the reliable fixing of diagnosis interface plug-in unit each other.
4. play a supporting role to plug-in unit in support portion, support portion chamfer design, and barb thickness adopts by large and little design, and this design, is convenient to pushing of plug-in unit.
5. the gap between shell fragment and support portion face (being diff-H) is less than the thickness of diagnosis interface plug-in unit, met the spacing fixing of plug-in unit, and plug-in unit cannot retreat and come off.
6. by carry out structure design on electrical appliance kit body, replaced external application bolt, nut, saved material cost, complete vehicle weight lightens.
7. plug-in unit adopts the structure design of push-in type, replaces the urgent formula of bolt and nut and fixes, and efficiency of assembling is high.
8. bolt and nut formula is fixed, diagnosis interface plug-in unit need assemble at auto production line, and this scheme has changed the assembly mode of diagnosis interface, and auto production line assembling is moved on in wire harness manufacturing process and assembled, without considering reserved assembly space, improve auto production line efficiency of assembling simultaneously.
9. realize diagnosis interface and electrical appliance kit and share access cover mouth, without the special diagnosis interface access cover mouth of design.
10. diagnosis interface has power lead, and electrical box can be directly taken from the electric wire power taking position in diagnosis interface, and diagnosis interface plug-in unit is nearer apart from the position of wire fuse electrical box, reduces and arranges risk, and wire harness safe reliability is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the structural representation of prior art another program;
Fig. 3 is general assembly drawing of the present invention;
Fig. 4 is the A portion structure for amplifying schematic diagram of Fig. 3 of the present invention;
Fig. 5 is diagnosis interface plug-in unit fixed sturcture front view of the present invention;
Fig. 6 is the block diagram of diagnosis interface plug-in unit fixed sturcture of the present invention;
Fig. 7 is another angle block diagram of diagnosis interface plug-in unit fixed sturcture of the present invention;
Fig. 8 is diagnosis interface plug-in unit fixed sturcture of the present invention and diagnosis interface plug-in connecting structure three-dimensional structure diagram;
Fig. 9 is diagnosis interface plug-in unit fixed sturcture of the present invention and another angle three-dimensional structure diagram of diagnosis interface plug-in connecting structure;
Figure 10 is diagnosis interface plug-in unit fixed sturcture back view of the present invention.
The specific embodiment
Describe by the following examples technical scheme of the present invention in detail, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
Shown in figure 3 to Figure 10, diagnosis interface plug-in unit fixed sturcture, electrical appliance kit body 1 is automobile electrical equipment box, diagnosis interface plug-in unit fixed sturcture 2 and electrical appliance kit body 1 injection moulding integrated molding, as shown in Figure 3.Automotive wire bundle diagnosis interface plug-in unit 3 is Automotive Standardization product, in the present embodiment, adopts product figure number MG610761-5, length * wide * height=69.5mm * 27.7mm * 21.4mm.
Described automotive diagnosis interface fixed sturcture, the not restriction of current collector box inner structure, in the present embodiment, minimum mounting plane n is length * wide=80mm * 25mm, meets at the same time and grows up in 80mm, is wider than in the plane space of 25mm and all can realizes this scheme.
Described diagnosis interface plug-in unit fixed sturcture includes support portion 21, shell fragment 23, barb portion 25 and support portion 22, shell fragment 24, barb portion 26 is symmetrical.
Described diagnosis interface plug-in unit fixed sturcture, support portion 21, support portion 22 adopt " L " type structure design, " L " type depth dimensions L1 is less than plug-in unit depth dimensions L2, in this application, described depth dimensions refers to take minor face that the long limit of L-type is X-axis, L-type during as Y-axis, and its depth dimensions is Z-direction; Support portion 21, support portion 22 design edge chamfers (t1, t2), be convenient to assembling.The Plane n that the long limit of the supporting plane of described L-type structure minor face (m1, m2) and electrical appliance kit body and L-type structure is connected is and is less than 45 degree angles, and optimal selection is for being 25 degree angles.
Described shell fragment a23 is half U type structure, and shell fragment b24 is semicircular structure; In other embodiment of the application, shell fragment a is semicircular structure, and shell fragment b is that U-shaped structure or shell fragment a and shell fragment b are semicircular structure or shell fragment a and shell fragment b and are half U type structure.By shell fragment a23 structure and shell fragment b24 position out of position, to design, left side is semicircle, and right side half U-shaped utilizes position, the existing other one group of hole of diagnosis interface to fix.This kind of design can realize car load diagnosis interface towards 90-degree rotation, meet diagnosis interface different towards requiring.Shell fragment a23 and shell fragment b24 structure can adopt semicircular structure simultaneously, and this project organization can meet a kind of plug-in unit fixed sturcture state, obtains two kinds of diagnosis interface state orientations.Compare with above design, plug-in unit is shaken off power and is suitably reduced, and is applicable to low vibration area.But an electrical appliance kit, can realize two kinds of diagnosis interfaces towards, meet vehicle layout demand in particular cases.
The plane at described shell fragment a and shell fragment b place is fixed on electrical appliance kit body plane with it is 45 degree to 90 degree angles, and optimal selection is 60 degree angles.
The plane place of described shell fragment a and the nearly electrical appliance kit body of shell fragment b is respectively arranged with reinforcing rib structure (27,28).
The described barb a25 of portion and the b26 of barb portion are all barb-like structure; The plane of the electrical appliance kit body that the inner top surface (m3, m4) of described barb portion is fixing with it is and is less than 45 degree angles, and optimum is 25 degree angles; The plane parallel of the electrical appliance kit body that the inner bottom surface (m5, m6) of described barb portion is fixing with it; The inner top surface of described barb portion and the distance of inner bottom surface adopt by large and minor structure, and minor increment h1 equates with diagnosis interface plug-in unit thickness h 2.
The supporting plane (m1, m2) of the L-type structure minor face of described support portion a and support portion b is less than diagnosis interface plug-in unit thickness h 2 with the diff-H between corresponding shell fragment a and shell fragment b lowest surfaces.
Assembling mode:
Diagnosis interface plug-in unit is along plane m1, m2 pushes, keep and m1, m2 is face contact relation, in push-on process, when shell fragment 23, after shell fragment 24 contacts with plug-in unit, due to shell fragment lowest surfaces and support portion face m1(m2) between gap (being diff-H) be less than the thickness h 2 of diagnosis interface plug-in unit, shell fragment produces certain obstruction power to plug-in unit, increase firmly, the stressed generation deformation of shell fragment, diagnosis interface plug-in unit continues to push, shift Nei rear flank, barb position onto, there is the shell fragment 23 of deformation, shell fragment 24 deformation recover, shell fragment 23 enters the U-shaped hole of diagnosis interface plug-in unit, shell fragment 24 enters diagnosis interface plug-in unit circular port, diagnosis interface plug-in unit is realized reliable fixing.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.