CN206860409U - A kind of pump case of vavuum pump - Google Patents

Abstract

The utility model discloses a kind of pump case of vavuum pump, including plastic casing, is inlaid with pump chamber part in the plastic casing, and the pump chamber part is that inner hollow, both ends have the aluminum pipe of opening, and the wall thickness of pump chamber part is 1.5~3mm.Pump chamber part is inlayed in a kind of plastic casing of the pump case of vavuum pump, pump chamber part is the aluminum pipe that inner hollow, both ends have opening, and the wall thickness control of pump chamber part is in 1.5~3mm, so as on the premise of it ensure that intensity, greatly reduce product weight, it is readily transported, and greatly reduces production cost.

Description

A kind of pump case of vavuum pump

Technical field

It the utility model is related to a kind of vavuum pump, more particularly to a kind of pump case of vavuum pump.

Background technology

With the fast development of automotive engineering, user is to performance indications such as the controllabilities, comfortableness and security of vehicle Requirement more and more higher, and brakes is to influence a key factor of the controllability of vehicle, comfortableness and security.For Improve controllability, comfortableness and the security of vehicle, reduce system by means of brake booster in current brakes Dynamic required pedal force, the normal work of brake booster need certain vacuum source.In conventional art, needed for brake booster Vacuum source negative pressure provides caused by inlet manifold when mainly being worked as engine, however, with turbocharging, fuel direct injection Largely applied on engine etc. series of new techniques, existing inlet manifold is difficult to produce enough negative pressure to be supplied to brake boost Device, therefore, set up a vavuum pump for being used to provide vacuum source for brake booster and obtained extensive development and application.

As shown in figure 1, the pump case of existing vehicle-mounted vacuum pump uses aluminium die cast, its technique is complex, cost compared with Height, and weight is larger, transport inconvenience, thus, is badly in need of solving.

Utility model content

The purpose of this utility model is in view of the above-mentioned problems, a kind of pump case of vavuum pump is provided, to solve existing vacuum The problem of pump case weight of pump is big, and cost is high.

The purpose of this utility model is to be achieved through the following technical solutions：

A kind of pump case of vavuum pump, including plastic casing, pump chamber part are inlaid with the plastic casing, the pump chamber part is Inner hollow, both ends have the aluminum pipe of opening, and the wall thickness of pump chamber part is 1.5~3mm.

As a kind of preferred scheme of the present utility model, the wall thickness of the pump chamber part is 2mm；The pump chamber part of the wall thickness can expire The use demand of the most vavuum pumps of foot, and there is the characteristics of cost is low.

The beneficial effects of the utility model are to inlay pump chamber part, pump in a kind of plastic casing of the pump case of vavuum pump Chamber part is the aluminum pipe that inner hollow, both ends have opening, and the wall thickness control of pump chamber part is in 1.5~3mm, so as to ensure that it is strong On the premise of degree, product weight is greatly reduced, is readily transported, and greatly reduces production cost.

Brief description of the drawings

Fig. 1 is the structural representation of the pump case of conventional vacuum pump；

Fig. 2 is a kind of structural representation of the pump case of vavuum pump of the utility model.

In figure:

1st, plastic casing；2nd, pump chamber part.

Embodiment

Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.It can manage Solution, embodiment described herein are used only for explaining the utility model, rather than to restriction of the present utility model.

It refer to shown in Fig. 2, Fig. 2 is a kind of structural representation of the pump case of vavuum pump of the utility model.

In the present embodiment, a kind of pump case of vavuum pump, including plastic casing 1, pump chamber is inlaid with the plastic casing 1 Part 2, the pump chamber part 2 are the aluminum pipe that inner hollow, both ends have opening, and the wall thickness of pump chamber part 2 is 2mm.

Although it is noted that in the present embodiment, the wall thickness of pump chamber part 2 is 2mm, and the utility model is not limited to This, the wall thickness of pump chamber part 2 can be for 2mm for 1.5mm or 3mm or positioned at any value between the two, the wall thickness of pump chamber part 2 Preferred scheme after considering with reference to cost and intensity.

Above example simply elaborates general principle and characteristic of the present utility model, and the utility model is not by above-mentioned implementation Example limitation, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change and change, these Changes and modifications are both fallen within claimed the scope of the utility model.The utility model requires protection scope is by appended right Claim defines.

Claims (2)

1. A kind of 1. pump case of vavuum pump, it is characterised in that：Including plastic casing, pump chamber part, institute are inlaid with the plastic casing Stating pump chamber part has the aluminum pipe of opening for inner hollow, both ends, and the wall thickness of pump chamber part is 1.5~3mm.
2. A kind of 2. pump case of vavuum pump according to claim 1, it is characterised in that：The wall thickness of the pump chamber part is 2mm.