CN215178453U

CN215178453U - Leak-proof test equipment

Info

Publication number: CN215178453U
Application number: CN202121753559.3U
Authority: CN
Inventors: 陈芳
Original assignee: Jabil Circuit Singapore Pte Ltd
Current assignee: Jabil Circuit Singapore Pte Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-14
Anticipated expiration: 2031-07-29

Abstract

A leak-proof test device is suitable for a part to be tested, which has an internal space. The leak-proof test equipment comprises a pressure container, a pressure unit and a pressure detection module. The pressure container is provided with an accommodating space capable of accommodating the piece to be tested. The pressure unit is connected to the pressure container and used for adjusting the air pressure in the accommodating space of the pressure container. The pressure detection module is used for being arranged in the internal space of the piece to be detected and sensing the air pressure in the internal space of the piece to be detected. Through the utility model discloses leak protection test equipment tests and can avoid the piece that awaits measuring to intake because of waterproof test and scrap or damage to save the design cost of product.

Description

Leak-proof test equipment

Technical Field

The utility model relates to a test equipment especially relates to a leak protection test equipment.

Background

Generally, in the design process of an electronic product with waterproof performance, a waterproof test is performed to ensure the waterproof performance, and the waterproof test is usually performed by directly placing the electronic product in water for a period of time and then observing whether the electronic product has a water inlet condition. However, this test method is prone to cause the electronic product to be rejected or damaged due to water entering the electronic product, and further increases the design cost of the electronic product.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a leak-proof testing device which can improve at least one of the disadvantages of the prior art.

The utility model discloses leak protection test equipment is applicable to and supplies the setting of piece that awaits measuring, the piece that awaits measuring has inner space. The leak-proof test equipment comprises a pressure container, a pressure unit and a pressure detection module. The pressure container is provided with an accommodating space capable of accommodating the piece to be tested. The pressure unit is connected to the pressure container and used for adjusting the air pressure in the accommodating space of the pressure container. The pressure detection module is used for being arranged in the internal space of the piece to be detected and sensing the air pressure in the internal space of the piece to be detected.

In some embodiments, the pressure detecting module includes a pressure sensing unit for sensing an air pressure in the inner space, and a main control unit electrically connected to the pressure sensing unit, and the main control unit is configured to control the pressure sensing unit.

In some embodiments, the main control unit is configured to generate, together with the pressure sensing unit, time-air pressure relationship data, where the time-air pressure relationship data includes a plurality of time values and a plurality of air pressure values corresponding to the plurality of time values.

In some embodiments, the master control unit is further configured to store the time-air pressure relationship data.

In some embodiments, the pressure detection module further includes a power supply element for providing power to the main control unit.

In some embodiments, the pressure detection module further includes a data transmission port electrically connected to the main control unit and configured to transmit the time-air pressure relationship data.

In some embodiments, the pressure detection module further includes a power switch electrically connected between the main control unit and the power supply element.

In some embodiments, the pressure detection module further includes a substrate for disposing the pressure sensing unit and the main control unit, and a protection member covering the pressure sensing unit, the main control unit, and the substrate.

In some embodiments, the leak-proof testing apparatus is adapted to be disposed on a plurality of devices under test, and includes a plurality of pressure detecting modules respectively disposed in the inner spaces of the plurality of devices under test.

In some embodiments, the pressure detection module can be taken out from the inner space of the device under test for reuse.

The utility model discloses leak protection test equipment is through the adjustment atmospheric pressure in pressure vessel's the accommodation space and with the module sensing is listened to pressure atmospheric pressure in the inner space of piece that awaits measuring tests the leak protection gas nature of piece that awaits measuring, and test by this whether the waterproof performance of piece that awaits measuring accords with the design demand. Through the utility model discloses leak protection test equipment tests and can avoid the piece that awaits measuring to intake because of waterproof test and scrap or damage to save the design cost of product.

Drawings

FIG. 1 is a schematic view of an embodiment of the leak-proof testing apparatus of the present invention and a plurality of devices under test; and

fig. 2 is a schematic diagram of the pressure detection module according to the embodiment.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1 to 2, an embodiment of the leak-proof testing apparatus 100 of the present invention is illustrated, which is suitable for providing a plurality of pieces to be tested 200, wherein the pieces to be tested 200 have an internal space 201. For example, the dut 200 may be an electronic product such as a mobile phone or a digital camera, and the internal space 201 may be a space such as a battery chamber of the dut 200. The leak-proof testing apparatus 100 includes a pressure vessel 1, a pressure unit 2, and a plurality of pressure detecting modules 3. It should be noted that, when only one device under test 200 needs to be leak-proof tested, the number of the pressure detection modules 3 may be only one.

The pressure container 1 has an accommodating space 11 capable of accommodating the to-be-tested device 200, a pressure valve 12 communicated with the accommodating space 11, and a pressure relief valve 13 communicated with the accommodating space 11. The pressure valve 12 has a pressure inlet 121, and the pressure relief valve 13 has a pressure outlet 131.

The pressure unit 2 is connected to the pressurizing port 121 of the pressure vessel 1 through a pipeline 21, and is used for adjusting the air pressure in the accommodating space 11 of the pressure vessel 1. For example, the pressure unit 2 may be a device such as an air compressor capable of adjusting the air pressure in the accommodating space 11 of the pressure container 1, and when the accommodating space 11 of the pressure container 1 needs to be pressurized, the pressure valve 12 may be opened, and the pressure unit 2 may be activated to increase the air pressure in the accommodating space 11 of the pressure container 1. When the pressure in the accommodating space 11 of the pressure container 1 needs to be released, the pressure valve 12 is closed and the pressure release valve 13 is opened, so that the gas is released from the pressure release opening 131.

The pressure detecting modules 3 are respectively configured to be disposed in the internal spaces 201 of the to-be-detected members 200, and configured to sense the air pressure in the internal spaces 201 of the to-be-detected members 200. Moreover, the pressure detecting module 3 can be taken out from the inner space 201 of the device under test 200 for reuse. In this embodiment, the pressure detecting module 3 includes a pressure sensing unit 31 for sensing the air pressure in the internal space 201, a main control unit 32 electrically connected to the pressure sensing unit 31, a power supply device 33 for providing power to the main control unit 32, a data transmission port 34 electrically connected to the main control unit 32, and a power switch 35 electrically connected between the main control unit 32 and the power supply device 33 and being, for example, a press type. For example, the pressure sensing unit 31 may be a pressure detecting chip (e.g., MS5541 pressure detecting chip), the main control unit 32 may be a single chip (e.g., PICF688 single chip), the power supply 33 may be a button-type battery, and the data transmission port 34 may be a connector such as an RS232 connector. In addition, the pressure detecting module 3 may further include a substrate 36 for the pressure sensing unit 31, the main control unit 32, the power supply device 33, the data transmission port 34 and the power switch 35, and a protection member 37 covering the pressure sensing unit 31, the main control unit 32, the power supply device 33 and the substrate 36. The circuit (not shown) on the circuit board makes the pressure sensing unit 31, the main control unit 32, the power supply device 33, and the data transmission port 34 achieve the above-mentioned electrical connection relationship. The protection member 37 may be, for example, a protection sleeve, and only the data transmission port 34 is exposed through an opening 371, and the protection member 37 may be, for example, a package, in which case both the data transmission port 34 and the power switch 35 are exposed from the package (protection member 37).

The main control unit 32 is configured to control and drive the pressure sensing unit 31, and is configured to generate time and pressure relationship data together with the pressure sensing unit 31, and further, the main control unit 32 may be further configured to store the time and pressure relationship data. The time-air pressure relation data comprises a plurality of time values and a plurality of air pressure values corresponding to the time values. In the testing process, the to-be-tested part 200 provided with the pressure detecting module 3 is firstly placed in the accommodating space 11 of the pressure container 1, and then the air pressure in the accommodating space 11 of the pressure container 1 is increased through the pressure unit 2. Then, the main control unit 32 is configured to control the pressure sensing unit 31 to sense and transmit back one of the air pressure values at intervals, so that the main control unit 32 obtains the plurality of time values and the plurality of air pressure values corresponding to the plurality of time values, and collects and stores the plurality of time values and the plurality of air pressure values as the time-air pressure relationship data. The interval between each time value may be, for example, a minimum of one second, and the entire pressure test may be, for example, two hours.

After the time-air pressure relation data is manufactured, the air pressure of the accommodating space 11 of the pressure container 1 can be recovered to be normal, and the pressure detection module 3 and the to-be-detected piece 200 are taken out from the accommodating space 11 of the pressure container 1. The data transmission port 34 of the pressure detection module 3 is used for connecting with a reading connection port (not shown) of a reading device (not shown), such as a computer, and transmitting the time-air pressure relationship data to the reading device for being interpreted by a user. Generally speaking, when the time value and the pressure value of the time-air pressure relationship data can be integrated into a time-pressure curve, if the pressure in the data rises abnormally and sharply along with the time and does not conform to the expected value on design, it can be determined that there is an air leakage situation in the internal space 201 of the corresponding device under test 200, that is, the waterproof performance of the corresponding device under test 200 is likely to need to be improved, otherwise, it is determined that the waterproof performance of the corresponding device under test 200 conforms to the design requirement.

In addition, it should be noted that the pressure-related data detected by the pressure detecting module 3 may also be transmitted to the reading device in other forms through other manners (for example, wireless transmission manners such as infrared ray, bluetooth, etc.), which is not limited in this embodiment.

To sum up, the utility model discloses leak protection test equipment 100 is through the adjustment atmospheric pressure in pressure vessel 1's the accommodation space 11 and with the module 3 sensing is listened to pressure atmospheric pressure in the inner space 201 of piece 200 that awaits measuring tests the leak protection gas nature of piece 200 that awaits measuring, and test by this whether the waterproof performance of piece 200 that awaits measuring accords with the design demand. Through the utility model discloses leak protection test equipment 100 tests and can avoid await measuring piece 200 to scrap or damage because of waterproof test intakes to save the design cost of product.

However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the contents of the claims and the patent specification of the present invention are still included in the scope of the present invention.

Claims

1. The utility model provides a leak protection test equipment, is applicable to and supplies a setting of awaiting measuring, the piece that awaits measuring has an inner space, its characterized in that, leak protection test equipment contains:

the pressure container is provided with an accommodating space capable of accommodating the piece to be detected;

the pressure unit is connected with the pressure container and is used for adjusting the air pressure in the accommodating space of the pressure container; and

and the pressure detection module is used for being arranged in the internal space of the piece to be detected and sensing the air pressure in the internal space of the piece to be detected.

2. The leak protection test apparatus of claim 1, wherein: the pressure detection module comprises a pressure sensing unit for sensing the air pressure in the inner space and a main control unit electrically connected with the pressure sensing unit, and the main control unit is used for controlling the pressure sensing unit.

3. The leak protection test apparatus of claim 2, wherein: the main control unit is used for generating time air pressure relation data together with the pressure sensing unit, and the time air pressure relation data comprise a plurality of time values and a plurality of air pressure values corresponding to the time values.

4. The leak protection test apparatus of claim 3, wherein: the main control unit is also used for storing the time and air pressure relation data.

5. The leak protection test apparatus of claim 2, wherein: the pressure detection module further comprises a power supply element for providing power for the main control unit.

6. The leak protection test apparatus of claim 3, wherein: the pressure detection module also comprises a data transmission port which is electrically connected with the main control unit and is used for transmitting the time-air pressure relation data.

7. The leak protection test apparatus of claim 5, wherein: the pressure detection module further comprises a power switch electrically connected between the main control unit and the power supply element.

8. The leak protection test apparatus of claim 2, wherein: the pressure detection module further comprises a substrate for the pressure sensing unit and the main control unit to be arranged, and a protection piece covering the pressure sensing unit, the main control unit and the substrate.

9. The leak protection test apparatus of claim 1, wherein: the leak protection test equipment is suitable for and supplies a plurality ofly it sets up to await measuring, and contains and be used for setting up respectively a plurality of the inner space of a plurality of pieces that await measuring the module is listened to the pressure.

10. The leak protection test apparatus of claim 1, wherein: the pressure detection module can be taken out from the inner space of the piece to be detected for repeated use.