CN201703316U - Vehicle middle control box body - Google Patents

Abstract

The utility model relates to a vehicle middle control box body. A screw hole with a counter hole is opened on the box body and the thickness of the box body around the counter hole is larger than the thickness of the box body wall of other parts and at least two arc grooves are opened on the outer surface of the box body around the counter hole and radially arranged along the counter hole and the circle center is the center of the counter hole. After injection moulding the vehicle middle control box body, the obvious shrink mark does not appearance on the surface of the box body and the appearance quality of the middle control box body is increased.

Description

Control box body in a kind of automobile

Technical field

The utility model relates to automobile component, particularly the middle control box body of automobile.

Background technology

Middle control case is the parts in the vehicle occupant compartment, and the casing of middle control case is by injection molding.Offer the screw hole of band counterbore on the middle control box body, casing is connected with mounting bracket with screw by this screw hole.Counterbore is used for hidden nut, to avoid the outstanding middle control box body outside face of nut.

In order to guarantee near the intensity of the casing the screw hole, the box body wall thickness around the counterbore of screw hole is greater than the box body wall thickness at other position of casing, and big more the closer to the box body wall thickness of counterbore, as shown in Figure 4.Because there is this species diversity in middle control box body on wall thickness, when injection mo(u)lding, injected plastics material will produce shrinkage distortion in the bigger position of casing wall thickness, thereby tangible shrink impression occur in the tank surface near the counterbore position, the presentation quality of control box body during this will have a strong impact on.

Summary of the invention

The purpose of this utility model provides in a kind of automobile and controls box body, makes that near the middle control box body surface counterbore the impression that significantly shrinks can not occur after the injection mo(u)lding.

Control box body in described in the utility model, on casing, offer the screw hole of band counterbore, box body wall thickness around the counterbore is greater than the box body wall thickness at other position of casing, box outer surface around counterbore offers at least two deep-slotted chip breakers, deep-slotted chip breaker is along the counterbore radial arrangement, and its center of circle is the center of counterbore.

The bottom land of every deep-slotted chip breaker equates with distance between the interior.

Deep-slotted chip breaker is equidistant layout on casing.

The utility model is because the box outer surface around counterbore is provided with many deep-slotted chip breakers, thereby the area of the casing with relatively thick is reduced, this position casing produces the degree of shrinkage distortion when having reduced injection mo(u)lding then, many deep-slotted chip breakers of tank surface have also to a certain degree been covered up the shrink impression of tank surface simultaneously, and deep-slotted chip breaker centering control box body outward appearance can not produce any influence, so control box body surface the impression that significantly shrinks can not occur in this automobile, has improved the presentation quality of middle control box body.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 looks scheme drawing for the master of control box body in described in the utility model;

Fig. 2 is the enlarged drawing at M place among Fig. 1;

Fig. 3 is the cutaway view of A-A line among Fig. 2;

Fig. 4 is for controlling the cutaway view of box body at A-A line position shown in Figure 2 place in existing.

In Fig. 2, the casing wall thickness begins to change at the dotted line position place, and frame of broken lines is greater than frame of broken lines casing wall thickness in addition with interior casing wall thickness.

The specific embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, should on casing 1, offer the screw hole 4 of being with counterbore 3 by middle control box body, the box body wall thickness of (in the frame of broken lines shown in Figure 2) is greater than the box body wall thickness at other position of casing around the counterbore 3, and big more the closer to the box body wall thickness of counterbore 3.Casing 1 outside face around counterbore 3 offers 2, three deep-slotted chip breakers 2 of three deep-slotted chip breakers along counterbore 3 disposed at equal distance radially, and its center of circle is the center of counterbore 3, and the bottom land of every deep-slotted chip breaker 2 equates with distance between casing 1 inside face.

Claims (3)

1. control box body in an automobile, offer the screw hole (4) of band counterbore (3) on the casing, box body wall thickness around the counterbore is greater than the box body wall thickness at other position of casing (1), it is characterized in that: the box outer surface around counterbore offers at least two deep-slotted chip breakers (2), deep-slotted chip breaker is along the counterbore radial arrangement, and its center of circle is the center of counterbore.

2. according to controlling box body in the described automobile of claim 1, it is characterized in that: the bottom land of every deep-slotted chip breaker (2) equates with distance between casing (1) inside face.

3. according to controlling box body in claim 1 or the 2 described automobiles, it is characterized in that: deep-slotted chip breaker (2) is gone up equidistant layout at casing (1).

Images