CN2790018Y - Vehicle poewr generator end cap - Google Patents

Abstract

The utility model relates to a generator end cap of an automobile, which is composed of a cap top and an annular cylinder body which are connected into an integral body, wherein the upper edge of a power supply interface, which is arranged on the cylinder body, is mutually dislocated with the lower edge; the orthographic projection of the outer seamed edge of the upper edge falls off the interior of the inner seamed edge of the lower edge. Because the upper edge and the lower edge of the power supply interface are mutually dislocated to form an inclined plane, and the junction surface formed by the outer seamed edge of the upper edge of the power supply interface and the inner seamed edge of the lower edge is used as a boundary, the space of the outer side inclined plane of the wall thickness, which is occupied by the power supply interface, is shaped by a concave mould; the space of the inner side inclined plane is molded by a convex mould; the concave mould and the convex mould which are respectively arranged at the inner and the outer sides are molded the lateral power supply interface. The utility model has the advantages of reasonable structure and design and high production efficiency; the structure of the power supply interface positioned on the end cap cylinder body can be appropriately adjusted under the condition of no influencing the function of a generator of the automobile; the utility model lowers the difficulty of molding process of the end cap, and improves the surface accuracy and the smooth finish of products.

Description

The automobile current generator end cap

Technical field:

The utility model belongs to electrical generator fields, particularly a kind of improvement of automobile current generator end cap.

Background technology:

The most of aluminium alloy compression casting that adopts of existing automobile generating engine housing forms, generator housing is made up of front end housing and rear end cap, both include the caping and the annular barrel of disjunctor, and end cap caping and cylindrical shell generally all have the heat radiation fenestra, and also have necessary power interface on the annular barrel.Heat radiation fenestra and power interface one-shot forming when die casting.Because power interface is in the sidepiece of end cap, promptly on the annular barrel, almost be on the vertical plane of caping, traditional die casting mode of production also needs the slide block of loosing core except that having a die, a punch, and the slide block of loosing core cooperates the moulding of finishing power interface with punch.The action of three directions all need be arranged when the matched moulds and the demoulding like this, increase the cooperation difficulty of equipment and mold, influence production efficiency, and outer casing krofile is synthetic whole by loose core slide block and die two parts, influenced by the precision of mould, there is the slit in both by matched moulds, and the product of die cast has obvious marks, the polishing that disfeatures also causes mould to damage easily.

Summary of the invention:

The purpose of this utility model is that a kind of power interface of design plane has the automobile current generator end cap that suitable incline structure is convenient to produce.

Technical solutions of the utility model be achieved in that a kind of by the caping that has the fenestra that dispels the heat, have the automobile current generator end cap that the annular barrel disjunctor of power interface forms, the upper edge and the lower edge mutual dislocation that it is characterized in that power interface, the outer seamed edge orthographic projection of upper edge drop in the lower edge within the seamed edge.Because the upper edge and the lower edge mutual dislocation of power interface form an inclined plane, and the faying face that constitutes with seamed edge in seamed edge and the lower edge outside the power interface upper edge is the boundary, it is the moulding of die institute that power interface takies the outer lateral incline space of wall thickness, interior lateral incline space is by the moulding of punch institute, and inside and outside concavo-convex two moulds are a plastic side direction power interface.

The utlity model has reasonable in design, under the situation that does not influence the automobile current generator function, the power interface structure that is on the end cap cylindrical shell is done suitable adjustment, reduced the moulding process difficulty of end cap, enhance productivity, and product appearance precision and finish also are improved.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 automobile current generator end cap schematic appearance

Fig. 2 power interface partial sectional view

Wherein

1-caping 2-cylindrical shell 3-stator seam

The outer seamed edge of 4-power interface 41-upper edge 410-

Seamed edge 5-faying face in the 420-of 42-lower edge

Embodiment:

See figures.1.and.2, the automobile current generator end cap, caping 1 and annular barrel 2 die casts by disjunctor, have necessary heat radiation fenestra on the caping 1, be reserved with power interface 4 on the cylindrical shell 2, the power interface passage is provided, wherein the upper edge 41 and lower edge 42 mutual dislocation of power interface 4, outer seamed edge 410 orthographic projections of upper edge 41 drop within the 42 interior seamed edges 420 of lower edge, and dotted line is the faying face 5 of die and punch among Fig. 2.Power interface 4 can directly vertically cooperate die casting to form by die and punch like this, need not the slide block of loosing core, and it is more simple that technology becomes.The end of cylindrical shell 2 is a stator seam 3.

In addition, power interface 4 upper edges 41 to caping 1 has identical gradient with lower edge 42 to upper edge 41, makes outward appearance more rationally attractive in appearance, also is easy to the demoulding.

It also can make a general reference other function slotted eye that is located on the cylindrical shell power interface of the utility model indication, as the heat radiation fenestra.The incline structure of slotted eye all should belong to the row of the utility model protection.

Claims (2)

1, a kind of by the caping that has the fenestra that dispels the heat, have the automobile current generator end cap that the annular barrel disjunctor of power interface forms, it is characterized in that the upper edge and the lower edge mutual dislocation of power interface, the outer seamed edge orthographic projection of upper edge drops in the lower edge within the seamed edge.

2, automobile current generator end cap according to claim 1 is characterized in that the power interface upper edge is to having identical gradient with lower edge to upper edge between tops.

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