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Waterproof test method and waterproof test tank

A box and object technology, applied in the field of waterproof test and waterproof test box, can solve problems such as difficult to determine the pressure difference

Inactive Publication Date: 2010-06-30
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, even when the test object has an airtightness problem, only a small amount of pressure difference can be detected, so it is difficult to determine whether the pressure difference is caused by the airtightness problem or other reasons

Method used

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  • Waterproof test method and waterproof test tank
  • Waterproof test method and waterproof test tank
  • Waterproof test method and waterproof test tank

Examples

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Embodiment Construction

[0021] Hereinafter, one embodiment of a method for testing waterproof properties of an object (airtightness testing method) and a waterproof testing tool disclosed in the present application will be described with reference to the accompanying drawings. Although in the embodiments described below, an example for testing the waterproof characteristics of the movable side case of the mobile terminal device will be described, the application of the waterproof test method and the waterproof test tool disclosed in the present application is not limited by this example .

[0022] An object of the disclosed technology is to provide a water resistance testing method and a water resistance testing tool that enable water resistance to be determined with high accuracy even when the internal volume of a test object is small.

[0023] According to an aspect of the waterproof testing method and waterproof testing tool disclosed in the present application, there is an advantage that airtight...

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Abstract

A method for testing waterproof property of an object designed to prevent water from penetrating into the inside of the object and having a hole, the hole allowing air communication between the inside and the outside of the object, the method includes: attaching closely to the object a tank having an opening hermetically surrounding the hole to form an air communication path between the inside of the object and the tank to form a single air tight space; placing the object to which the tank is attached in an air tight container; either or both of injecting gas into and extracting the air from the air tight container containing the object so as to change the gaseous pressure of the air tight container; and measuring an internal gaseous pressure of the air tight container to determine whether the waterproof property of the object is effective or not.

Description

technical field [0001] Some aspects of the embodiments discussed herein relate to techniques for a method of testing an object for water resistance. Background technique [0002] Conventionally, there is known a method of testing the water resistance of an object by measuring a pressure difference. will refer to Figure 11 To describe this waterproof test method. Figure 11 is a diagram illustrating the structure of an airtightness testing device 4 that tests airtightness by measuring a pressure difference. Such as Figure 11 As shown, the airtightness testing device 4 includes a testing device main body 41, storage containers 42a and 42b, and air hoses 43a and 43b. [0003] The storage container 42a is a container for storing the test object 5, and is connected to the test apparatus main body 41 by an air hose 43a. The storage container 42b is a container for storing a master 6 having the same volume as the test object 5, and is connected to the test apparatus main body 4...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/329
Inventor 服部良铃木崇司小林英克村上刚基
Owner FUJITSU LTD
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