CN202172534U

CN202172534U - Electronic controller housing

Info

Publication number: CN202172534U
Application number: CN2011202237297U
Authority: CN
Inventors: 张晓琴; 马辉; 屈晨竹; 史松青
Original assignee: United Automotive Electronic Systems Co Ltd
Current assignee: United Automotive Electronic Systems Co Ltd
Priority date: 2011-06-28
Filing date: 2011-06-28
Publication date: 2012-03-21
Anticipated expiration: 2021-06-28

Abstract

The utility model discloses an electronic controller housing, comprising a casing formed through one-off low pressure casting of plastic. The casing is in fixed connection with one end of a circuit board assembly; the other end of the circuit board assembly is exposed out of the casing; and the casing is provided with a radiating fin fixedly, which is bound to the electric board assembly through heat conducting glue. The electronic controller housing employs the integrated casing formed through one-off low pressure casting of plastic to replace conventional upper metal casing and lower metal casing, thereby reducing raw material cost, requiring no additional sealant or screw, being easier to assemble and having low equipment investment. Moreover, with the radiating fin fixed with the circuit board assembly directly, the electronic controller housing satisfies the requirement of chips for heat dissipation, saves heat conducting material, and further reduces cost.

Description

Shell of electronic controller

Technical field

The utility model relates to a kind of encapsulating structure, specifically belongs to a kind of shell of electronic controller.

Background technology

Electronic controller is a kind of electronic component that is used for the electronic control system of automobile, motorcycle, and its outside housing that adopts usually encapsulates.At present, the shell of electronic controller mainly is made up of housing and loam cake two parts, and its middle shell and loam cake adopt metal material more, and in housing, is provided with Heat Conduction Material and pressure compensation element etc.During assembling; Earlier circuit board and connector are welded to form circuit board assemblies; Then pressure compensation element and heat conduction film are sticked on and cover, fluid sealant is coated onto on loam cake and the housing, circuit board assemblies is assembled to cover again; The mounting circuit boards screw is fixed on circuit board and covers, last assembling shell on cover and lock with the shell screw.Because the casing part of controller is more, institute is so that the shell assembly technology of electronic controller is very complicated, and to having relatively high expectations of equipment, and the employing metal shell causes the cost of raw material higher.

The utility model content

The utility model technical problem to be solved provides a kind of shell of electronic controller, and its shell can be one-body molded through the plastics low-pressure injection molding, can reduce production costs, and simplifies assembly technology.

For solving the problems of the technologies described above; The shell of electronic controller that the utility model provides; Comprise that by the one-time formed shell of plastics low-pressure injection molding said shell is fixedly connected with an end of circuit board assemblies, the other end of circuit board assemblies is exposed to outside the shell; Be installed with fin on the said shell, this fin solidifies bonding through heat conduction glue and circuit board assemblies.

In said structure, be fixed with four pressure limiting inserts on the said shell.Wherein, said pressure limiting inserts is positioned on four angles of shell.

The beneficial effect of the utility model is, adopts plastics low pressure casting one-shot forming to go out whole casing, has replaced traditional metal shell up and down; Effectively reduce the cost of raw material; And need not extra fluid sealant or screw, assembly technology is simpler, and equipment investment is low.In addition, fin directly is connected with circuit board assemblies curing, and the heat radiation of not only satisfying chip requires and reduced the use of Heat Conduction Material, has further reduced cost.

Description of drawings

Fig. 1 is the stereogram of the utility model shell of electronic controller;

Fig. 2 is the front view of the utility model shell of electronic controller;

Fig. 3 is the rearview of the utility model shell of electronic controller.

Wherein description of reference numerals is following:

1 is that shell 2 is the pressure limiting inserts

3 is that circuit board assemblies 4 is fin

Embodiment

The shell of electronic controller of the utility model like Fig. 1, shown in Figure 2, comprises that by the one-time formed shell 1 of plastics low-pressure injection molding, said shell 1 is fixedly connected with an end of circuit board assemblies 3, and the other end of circuit board assemblies 3 is exposed to outside the shell 1.

As shown in Figure 3, be installed with fin 4 on the said shell 1, this fin 4 solidifies bonding through heat conduction glue and circuit board assemblies 3.Fin 4 can effectively solve the not enough problem of shell 1 plastic material heat-sinking capability, guarantees enough insulating capacities simultaneously.

In said structure, be fixed with four pressure limiting inserts 2 on the said shell 1.Wherein, said pressure limiting inserts 2 is positioned on four angles of shell 1.Pressure limiting inserts 2 guarantees to have enough intensity when electronic controller is connected with vehicle body, prevents that plastics from being damaged by pressure and when being under pressure for a long time, produces creep.

When the shell of electronic controller of the utility model is produced; At first heat conduction glue is coated on the fin 4; Then that circuit board assemblies 3 is bonding and be heating and curing through heat conduction glue and fin 4; At last the assembly after bonding is put into mould with four pressure limiting inserts 2, cast molding goes out shell 1, removes the cast gate excess stock.

The utility model adopts plastics low pressure casting one-shot forming to go out whole casing, has replaced traditional metal shell up and down, effectively reduces the cost of raw material, and need not extra fluid sealant or screw, and assembly technology is simpler, and equipment investment is low.In addition, fin directly is connected with circuit board assemblies curing, and the heat radiation of not only satisfying chip requires and reduced the use of Heat Conduction Material, has further reduced cost.

More than through specific embodiment the utility model has been carried out detailed explanation, this embodiment only is the preferred embodiment of the utility model, it is not that the utility model is limited.Under the situation that does not break away from the utility model principle, equivalent replacement and improvement that those skilled in the art makes each position component etc. all should be regarded as in the technological category that the utility model is protected.

Claims

1. shell of electronic controller, it is characterized in that: comprise that by the one-time formed shell of plastics low-pressure injection molding said shell is fixedly connected with an end of circuit board assemblies, the other end of circuit board assemblies is exposed to outside the shell.

2. shell of electronic controller according to claim 1 is characterized in that: be installed with fin on the said shell, this fin solidifies bonding through heat conduction glue and circuit board assemblies.

3. shell of electronic controller according to claim 1 is characterized in that: be fixed with four pressure limiting inserts on the said shell.

4. shell of electronic controller according to claim 3 is characterized in that: said pressure limiting inserts is positioned on four angles of shell.