CN101210856A - Test system and test program for testing waterproof product - Google Patents

Abstract

The present invention provides a testing system and a testing procedure, which utilize positive pressure to test the waterproof function of a waterproof product. In particular, a standard sample is placed in the testing system for comparison with the waterproof product.

Description

Test system and test procedure for testing waterproof products

technical field

The present invention relates to a test system (Test system) and a test program, in particular to a test system and a test program for testing the waterproof function of waterproof products by using positive air pressure. In addition, the testing system and testing procedure of the present invention further utilize standard samples for comparison of waterproof products.

Background technique

Portable electronic products currently on the market (such as mobile phones) must have various exposed holes and gaps such as sound holes, connector holes, buttons, and casing seams due to functional requirements. Interlinked. If liquid enters the mobile phone through these holes and gaps, it may cause the portable electronic product to crash or parts to be damaged and become unusable.

However, the most common way in the industry to test the waterproof function of products in the past is to use negative pressure to evacuate the inside of the test object, and then observe the change of the internal pressure of the test object. However, the method of extracting the air inside the product is easy to cause damage to the internal parts of the product.

Therefore, the purpose of the present invention is to provide a testing system and testing program for testing waterproof products to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide a test system and a test program, which utilize positive pressure to test the waterproof function of waterproof products. In particular, the test system contains standard samples for comparison of waterproof products. Through the test system and test program of the present invention, users can minimize test errors caused by environmental factors.

According to a preferred embodiment, the test system of the present invention includes an air pump (Air pump), a first chamber (Chamber), a second chamber, a first air valve (Valve), a first tank (Tank), a second air Valve, second tank, third air valve and differential pressure gauge. The first chamber is operatively connected to the air pump, and the waterproof product is placed into the first chamber. The second chamber is operatively connected to the air pump and has the same volume as the first chamber, and the standard sample (Golden sample) is placed in the second chamber. The first air valve is connected between the first chamber and the second chamber. The second air valve is connected between the first chamber and the first tank. The second tank has the same volume as the first tank. The third air valve is connected between the second chamber and the second tank. A differential pressure gauge is installed to measure the pressure difference across the first air valve, that is, the pressure difference between the first chamber and the second chamber. In addition, according to the test procedure, firstly, the first air valve is opened, the second air valve and the third air valve are closed, the first chamber and the second chamber are pressurized to a predetermined pressure by an air pump, and then the first air valve is closed. Then, measure the pressure difference during the detection period, and check whether the pressure difference is higher than the first threshold (Threshold) value, if yes, the waterproof product is judged as unqualified.

Therefore, according to the testing system of the present invention, it can be determined whether the waterproof product has slight airtight insufficiency by checking whether the pressure difference is higher than the first threshold value.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

Description of drawings

Fig. 1 is the schematic diagram of the infrastructure of the test system according to a preferred embodiment of the present invention;

FIG. 2A is a schematic diagram of a test procedure performed by the test system in FIG. 1;

Fig. 2B is a schematic diagram of the test procedure when the pressure difference on both sides of the first air valve in Fig. 1 is lower than the first threshold value; and

Fig. 3 is the flow chart of the test program according to a preferred embodiment of the present invention;

Description of main component marking

1: Test system 10: Air pump

12: The first room 122: Waterproof products

13: The first air valve 14: The second chamber

142: Standard sample 15: Second air valve

16: The first slot 17: The third air valve

18: Second slot 19: Differential pressure gauge

S101-S109: Process steps

Detailed ways

Please refer to FIG. 1 , which is a schematic diagram of the basic structure of a test system 1 according to a preferred embodiment of the present invention. The test system of the present invention utilizes positive pressure to test the waterproof function of waterproof products. As shown in Figure 1, the test system 1 includes an air pump 10, a first chamber 12, a second chamber 14, a first air valve 13, a first tank 16, a second air valve 15, a second tank 18, a third air Valve 17 and differential pressure gauge 19.

Also shown in FIG. 1 , the first chamber 12 is operatively connected to the air pump 10 into which a waterproof product 122 is placed. The second chamber 14 is operatively connected to the air pump 10 and has the same volume as the first chamber 12 , into which a standard sample 142 is placed. The first air valve 13 is connected between the first chamber 12 and the second chamber 14 . The second air valve 15 is connected between the first chamber 12 and the first tank 16 . The second tank 18 has the same volume as the first tank 16 . The third air valve 17 is connected between the second chamber 14 and the second tank 18 . The differential pressure gauge 19 is installed to measure the pressure difference between the two sides of the first gas valve 13, that is, the pressure difference between the first chamber and the second chamber.

Please refer to FIG. 2A . FIG. 2A is a schematic diagram of a testing procedure performed by the testing system 1 in FIG. 1 . As shown in Figure 2A, according to the test procedure, open the first air valve 13, close the second air valve 15 and the third air valve 17, pressurize the first chamber 12 and the second chamber 14 to a predetermined pressure with the air pump 10, Then close the first gas valve 13.

Also shown in FIG. 2A , according to the test procedure, the pressure difference is measured during the test period, and it is checked whether the pressure difference is higher than the first threshold value, and if so, the waterproof product 122 is judged as unqualified. In other words, this means that a slight airtight insufficiency occurs at a certain part of the waterproof product 122 . If the waterproof product 122 falls into the water, it will slowly enter the water and cannot be completely waterproof.

Please refer to FIG. 2B . FIG. 2B is a schematic diagram of a test procedure when the pressure difference between the two sides of the first air valve 13 in FIG. 1 is lower than the first threshold value. As shown in Figure 2B, if the pressure difference is lower than the first threshold value, then according to the test procedure, further open the second air valve 15 and the third air valve 17, measure the pressure difference again, and check whether the pressure difference is higher than the second threshold value. threshold value, if it is, then the waterproof product 122 is judged to be unqualified. If not, the waterproof product 122 is acceptable. In other words, this means that the waterproof product 122 has serious airtight insufficiency. If the waterproof product 122 falls into the water, it will directly enter the water and cannot be waterproof at all.

Next, a test procedure according to a preferred embodiment of the present invention will be described, which is applied to the test system 1 shown in FIG. 1 . For the basic structure of the test system 1, please refer to FIG. 1 and its corresponding description, and details will not be repeated here.

Please refer to Figure 3. FIG. 3 is a flowchart of a test program according to a preferred embodiment of the present invention. As shown in Figure 3, the test procedure consists of the following steps:

Step S101: Put the waterproof product 122 into the first chamber 12;

Step S102: Put the standard sample 142 into the second chamber 14;

Step S103: Open the first air valve 13, close the second air valve 15 and the third air valve 17, use the air pump 10 to pressurize the first chamber 12 and the second chamber 14 to a predetermined pressure, and then close the first air valve 13 ;

Step S104: measure the pressure difference after the detection period, and check whether the pressure difference is higher than the first threshold value, if yes, go to step S105, if not, go to step S106;

Step S105: judging that the waterproof product 122 is unqualified;

Step S106: further opening the second air valve 15 and the third air valve 17;

Step S107: Measure the pressure difference again, and check whether the pressure difference is higher than the second threshold value, if yes, go to step S108, if not, go to step S109;

Step S108: Determining that the waterproof product 122 is unqualified.

Step S109: Determining that the waterproof product 122 is qualified.

In practical application, according to the testing system 1 of the present invention, the predetermined pressure can be adjusted according to the waterproof standards that various waterproof products must meet. For example, the predetermined pressure can be adjusted to a depth of one meter underwater to test whether the mobile communication device can achieve the waterproof level of IPX7.

Compared with the previous technology, according to the testing system of the present invention, it can be judged whether the waterproof product has slight airtight insufficiency by checking whether the pressure difference is higher than the first threshold value. In addition, according to the testing system of the present invention, it is also possible to further determine whether the waterproof product has severe airtight insufficiency by checking whether the pressure difference is higher than the second threshold value.

Through the detailed description of the preferred specific embodiments above, it is hoped that the characteristics and spirit of the present invention can be more clearly shown, rather than limiting the scope of the present invention by the preferred specific embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements within the claims of the present invention.

Claims (4)

1. test macro in order to testing water-proof product is characterized in that this test macro comprises:

Pneumatic pump;

First Room, this first Room are that operability is connected to this pneumatic pump, and this waterproof product is inserted this first Room;

Second Room, this second Room be operability be connected to this pneumatic pump and with this first Room equal-volume, standard model is inserted this second Room;

First air valve, this first air valve are connected between this first Room and this second Room;

First groove;

Second air valve, this second air valve are connected between this first Room and this first groove;

Second groove, this second groove and this first groove equal-volume;

The 3rd air valve, the 3rd air valve are connected between this second Room and this second groove; And

Differential pressure gauge, this differential pressure gauge are installed to measure the pressure differential on these first air valve both sides;

Wherein test procedure comprises the following step:

Open this first air valve, close this second air valve and the 3rd air valve,, close this first air valve then with this pneumatic pump pressurize this first Room and this second Room to a predetermined pressure; And

Through this pressure differential of detection period measurements, and check whether this pressure differential is higher than first threshold value, if judge that then this waterproof product is defective.

2. test macro according to claim 1 is characterized in that this pressure differential if be lower than this first threshold value, and then this test procedure further comprises the following step:

Open this second air valve and the 3rd air valve, measure this pressure differential once more, and check whether this pressure differential is higher than second threshold value, if judge that then this waterproof product is defective.

3. test procedure that comes testing water-proof product by test macro, it is characterized in that this test macro comprises pneumatic pump, first Room, second Room, first air valve, first groove, second air valve, second groove, the 3rd air valve and differential pressure gauge, this first Room is that operability is connected to this pneumatic pump, this second Room be operability be connected to this pneumatic pump and with this first Room equal-volume, this first air valve is connected between this first Room and this second Room, this second air valve is connected between this first Room and this first groove, the 3rd air valve is connected between this second Room and this second groove, this second groove and this first groove equal-volume, this differential pressure gauge is installed to measure the pressure differential on these first air valve both sides, and this test procedure comprises the following step:

This waterproof product is inserted this first Room;

Standard model is inserted this second Room;

Open this first air valve, close this second air valve and the 3rd air valve,, close this first air valve then with this pneumatic pump pressurize this first Room and this second Room to a predetermined pressure; And

Through this pressure differential of detection period measurements, and check whether this pressure differential is higher than first threshold value, if judge that then this waterproof product is defective.

4. test procedure according to claim 3 is characterized in that this pressure differential if be lower than this first threshold value, and then this test procedure further comprises the following step:

Open this second air valve and the 3rd air valve; And

Measure this pressure differential once more, and check whether this pressure differential is higher than second threshold value, if judge that then this waterproof product is defective.

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