Electronic control apparatus for vehicle using water proof type housing sealing and method thereof

Patent metadata

Field	Value
Publication number	US-9474170-B2
Application number	US-201314139846-A
Country	US
Kind code	B2
Filing date	Dec 23, 2013
Priority date	Apr 26, 2013
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

The present disclosure relates to an electronic control apparatus for a vehicle using waterproof type housing sealing and a manufacturing method thereof, in which when a connector cover including a sealing material injection hole formed on a front surface is coupled with a body coupling part, a sealing space is formed along a circumference of an inner surface of each of the coupled coupling parts and a preventive protrusion formed at a body coupling part, and a sealing material is injected through a sealing material injection hole so that a sealing space between the connector cover and a housing body is sealed, thereby improving waterproof performance between the connector cover and the housing body, and simplifying a process by replacing a process of manufacturing and mounting an O-ring in advance with a simple process of injecting the sealing material.

First claim

What is claimed is:

1. An electronic control apparatus for a vehicle, comprising:
a printed circuit board (PCB) configured to electrically control each part of the vehicle;
a connector cover including a connector part electrically connected with the PCB and a cover coupling part including a sealing material injection pipe, through which a sealing material is injected, and coupled with the PCB through the connector part; and
a housing body including a body part configured to accommodate the PCB and a body coupling part fitted to and coupled with the cover coupling part, and including a preventive protrusion along a circumference of an inner surface of the body coupling part,
wherein the cover coupling part is engaged and coupled with the body coupling part, and a sealing space is formed between the cover coupling part and the body coupling part along a circumference of an inner surface of each of the cover coupling part, the body coupling part, and the preventive protrusion,
wherein the sealing space is filled with the sealing material injected through the sealing material injection pipe so that the sealing space between the cover coupling part and the body coupling part, at which the connector cover is coupled with the housing body, is sealed, and the sealing material is contained only in the sealing space and the sealing material is not contained in the sealing material injection pipe.

2. The electronic control apparatus of claim 1 , wherein the connector cover includes one or more sealing material injection pipes, through which the sealing material is injected, and the sealing material is injected through each of the one or more sealing material injection pipes.

3. The electronic control apparatus of claim 1 , wherein the preventive protrusion formed at the body coupling part has an inclined internal surface facing an inner surface of the coupled cover coupling part.

4. The electronic control apparatus of claim 1 , wherein at least one surface among inner surfaces of the cover coupling part, the inner surface of the body coupling part, and the internal surface of the formed preventive protrusion within the sealing space formed along the circumference of the inner surface of each of the body coupling part and the cover coupling part, which are coupled with each other, and the formed preventive protrusion is formed by a groove.

5. A method of manufacturing an electronic control apparatus, comprising:
coupling a connector cover with a printed circuit board (PCB) configured to electrically control each part of a vehicle through a formed connector, the connector cover includes a connector part electrically connected with the PCB and a cover coupling part having a sealing material injection pipe, through which a sealing material is injected;
fitting the connector cover having the connector part coupled with the PCB to a housing body having a preventive protrusion formed along a circumference of an inner surface of a body coupling part coupled with the cover coupling part to accommodate the PCB;
engaging and coupling the cover coupling part with the body coupling part and forming a sealing space between the cover coupling part and the body coupling part along a circumference of an inner surface of each of the cover coupling part, the body coupling part, and the preventive protrusion; and
filling the sealing space between the cover coupling part and the body coupling part, at which the connector cover is coupled with the housing body by injecting the sealing material through the sealing material injection pipe, wherein the sealing material is transferred to the sealing space through the sealing material injection pipe such that the sealing space contains all of the sealing material and the sealing material injection pipe does not contain the sealing material.

6. The method of claim 5 , wherein sealing the sealing space includes forming one or more sealing material injection pipes and injecting the sealing material through each of the one or more sealing material injection pipes.

Assignees

• Hyundai Autron Co Ltd

Inventors

• Kim Chang Ju
• Shin Chang Geun
• Lee Dong Gi
• Lee Jun Ho
• Choo Yeon Chul

Classifications

• H05K5/0026 Primary

  provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units · CPC title

• B60R16/0238

  Electrical distribution centers · CPC title

• Y10T29/49147

  Assembling terminal to base · CPC title

• B60R16/0237

  circuits concerning the atmospheric environment (meteorology G01W) · CPC title

• B60R16/0239

  Electronic boxes · CPC title