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Device for testing water pump cavity air tightness

An air tightness and water pump technology, which is applied in the field of devices for testing the air tightness of the inner cavity of an electronic water pump shell, can solve the problems of low production efficiency of the electronic water pump, inability to detect easily, and easy occurrence of defective products, etc. Easy to detect and easy to use

Pending Publication Date: 2019-06-11
华域皮尔博格泵技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The electronic water pump is used in automobiles to provide power for the cooling water cycle of the automobile. The housing of the electronic water pump is provided with a mouth connected to the inner cavity, and the mouth is covered with a one-way water-permeable membrane cover plate. The outer side of the plate is provided with an end cover, and the end cover is generally welded to the casing, and the welding between the end cover and the water pump casing has airtightness requirements, but there is no convenient way to detect the airtightness here in the prior art. permanent device, which makes the production efficiency of electronic water pumps low, and prone to defective products

Method used

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  • Device for testing water pump cavity air tightness
  • Device for testing water pump cavity air tightness
  • Device for testing water pump cavity air tightness

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Embodiment Construction

[0047] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0048] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper"...

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Abstract

The invention relates to a device for testing water pump cavity air tightness. When the device for testing the water pump air tightness provided by the invention is used for carrying out air tightnessdetection on a water pump, a connection cover at an opening of a water pump cavity is aligned with a circular pit on a testing platform and a sealing ring surrounds the connection cover and is in sealed contact with an end cover; a water pump shell is compressed through utilization of a compression mechanism and an air cavity formed between the end cover nearby a water pump opening and the circular pit is sealed through utilization of the sealing ring; an air tightness detector imports compressed air into a first connection hole; the compressed air enters the air cavity and then enters into the water pump cavity from a gap between the end cover and the connection cover; and if the air tightness of a weld joint of the end cover of the water pump is poor, the compressed air in the water pump cavity is leaked from a poorly sealed position, and the air tightness detector can detect pressure drop.

Description

technical field [0001] The invention relates to a device for testing the airtightness of a cavity of a water pump, in particular to a device for testing the airtightness of an inner cavity of an electronic water pump housing. Background technique [0002] The electronic water pump is used in automobiles to provide power for the cooling water cycle of the automobile. The housing of the electronic water pump is provided with a mouth connected to the inner cavity, and the mouth is covered with a one-way water-permeable membrane cover plate. The outer side of the plate is provided with an end cover, and the end cover is generally welded to the casing, and the welding between the end cover and the water pump casing has airtightness requirements, but there is no convenient way to detect the airtightness here in the prior art. Permanent device, which makes the production efficiency of electronic water pumps low, and prone to defective products. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 徐海栋
Owner 华域皮尔博格泵技术有限公司
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