CN206209003U - Testing device - Google Patents

Abstract

A test device is suitable for testing a connection port of an electronic device to be tested. The electronic device to be tested has a charging mode, and the connection port has a first pin and a second pin. The test device has a transmission module and a control module. The transmission module is electrically connected to the first pin and the second pin. The control module is electrically connected to the transmission module. The transmission module adjusts the voltage level of the first pin to a first voltage value, and the transmission module detects the voltage level of the second pin. The control module determines whether the charging mode of the electronic device to be tested is the first fast charging mode or the second fast charging mode according to the voltage level of the second pin.

Description

test device

technical field

The utility model relates to a test device, in particular to a test device for a connection port of an electronic device.

Background technique

With the advancement of science and technology, various electronic products are constantly being introduced, and various communication specifications and data transmission specifications are also constantly being refurbished in response to the needs of users. On the other hand, as electronic products have more and more functions, how to arrange various functional modules in a limited space is a problem that manufacturers cannot ignore when designing products. In view of this, transmission specifications with multiple charging modes have begun to appear on the market, such as fast charging with high current, or charging with low current when the battery is low in storage capacity to avoid battery burnout.

Therefore, it is also necessary to conduct tests in response to different charging modes of the electronic device at the factory end. In the past, manual adjustments were made to manually adjust the settings, and an additional mobile device was purchased to connect to the electronic device to test different functional modes of the electronic device. There is no automated test tool that can be used to test whether the electronic device has a fast charging mode or not. It is a variety of charging modes, or even testing whether the various charging modes of the electronic device for supplying power to the mobile device are normal.

Utility model content

The purpose of the present invention is to provide a test device, which can test whether the electronic device under test can normally provide charging and what the charging mode is in an automated manner.

To achieve the above purpose, the utility model provides a test device suitable for testing a connection port of an electronic device to be tested, the electronic device to be tested has a charging mode, and the connection port has a first pin and a first Two-pin position, wherein the test device contains:

A transmission module electrically connects the first pin and the second pin, the transmission module adjusts the voltage level of the first pin to a first voltage value, and the transmission module detects the voltage of the second pin voltage level; and

A control module is electrically connected to the transmission module, and the control module judges whether the charging mode of the electronic device under test is a first fast charging mode or a second fast charging mode according to the voltage level of the second pin.

In the above test device, when the control module determines that the difference between the voltage level of the second pin and the first voltage value is not greater than a preset voltage threshold, the control module determines that the electronic device under test The charging mode is the first fast charging mode or the second fast charging mode.

In the above test device, wherein the transmission module further sets the first pin and the second pin when determining that the charging mode of the electronic device under test is the first fast charging mode or the second fast charging mode The voltage level of one of them is a second voltage value, and the control module further judges that the charging mode of the electronic device under test is the second voltage level according to the voltage level of the other of the first pin and the second pin. A fast charging mode or the second fast charging mode.

In the above test device, the second voltage value is higher than the first voltage value.

The above test device further includes a detection module, the detection module is electrically connected to a power supply pin in the connection port and is electrically connected to the control module, and the control module further adjusts the magnitude of the current flowing through the power supply pin is a preset current value, the detection module detects the magnitude of an actual current flowing through the power supply pin, and when the difference between the magnitude of the actual current and the preset current value is greater than a preset current threshold value, the control The module judges that the connection port is invalid.

The above-mentioned test device further includes a load module, the load module has an equivalent sub-load, the test device has an equivalent main load relative to the power supply pin, and the control module more selectively uses the equivalent sub-load The load is electrically connected to the equivalent main load to adjust the magnitude of the current flowing through the power supply pin to the preset current value.

The above-mentioned test device further includes a function abnormal warning module, which is electrically connected to the control module, and when the control module judges that the connection port is invalid, the function abnormal warning module warns the electronic device under test The charging mode is abnormal.

In the above test device, wherein the control module further obtains an identification signal from the electronic device under test, the identification signal indicates whether the electronic device under test has a standard charging mode, when the control module judges that the electronic device under test has the charging mode When the mode is neither the first fast charging mode nor the second fast charging mode, and the identification signal indicates that the charging mode of the electronic device under test is the standard charging mode, the control module determines that the charging mode of the electronic device under test The mode is the standard charging mode.

The above test device further includes a function abnormality warning module, the function abnormality warning module is electrically connected to the control module, when the control module determines that the charging mode of the electronic device under test is neither the first fast charging mode nor the In the second fast charging mode, and the control module does not obtain the identification signal from the electronic device under test, the abnormal function warning module warns that the charging mode of the electronic device under test is abnormal.

Based on the above, the utility model provides a test device, which is used to adjust the voltage level of one of the first pin and the second pin of the electronic device to be tested, and detect the voltage level of the first pin and the second pin. The voltage level of the other of the first pin and the second pin is used to determine whether the electronic device under test has a fast charging mode. Thereby, the test device provided by the utility model can automatically test whether the connection port of the electronic device to be tested supports the fast charging mode, thereby avoiding the dilemma of manpower testing.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1 is the functional block schematic diagram of the testing device of an embodiment of the present utility model;

Fig. 2 is the functional block schematic diagram of the testing device of another embodiment of the present utility model;

FIG. 3 is a functional block diagram of a testing device according to another embodiment of the present invention.

【Symbol Description】

10, 30, 40 Test Set

120, 320, 420 transport modules

140, 340, 440 Control Module

360, 460 detection module

370, 470 Switch Module

380, 480 Load Module

490 Abnormal function warning module

20 electronic device under test

220 connection port

2220 First foot position

2240 Second pin position

2260 power pin

detailed description

Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are specifically described:

Please refer to FIG. 1 . FIG. 1 is a functional block diagram of a testing device according to an embodiment of the present invention. In FIG. 1 there will be a test device 10 and an electronic device 20 to be tested. The test device 10 has a transmission module 120 and a control module 140 . The electronic device 20 under test has a connection port 220 . The transmission module 120 is electrically connected to the control module 140 . And in this embodiment, the test device 10 is electrically connected to the connection port 220 of the electronic device 20 to be tested through the transmission module 120 . Wherein, the electronic device 20 to be tested is, for example, a mainboard, and the connection port 220 is, for example, implemented in accordance with the Universal Serial Bus specification, Apple's lightening interface specification, or other transmission interfaces that can be used for charging. In practice, the electronic device 20 to be tested, for example, further has a chipset and a charger integrated circuit to control the connection port 220 to selectively transmit power. The electronic device under test 20 and the connection port 220 comply with the battery charging specification version 1.2 (battery charge 1.2, BC 1.2) of the universal serial bus for the following description, but in fact this is not the case. limit.

The testing device 10 is suitable for testing the connection port 220 of the electronic device 20 to be tested. The electronic device 20 to be tested has at least one charging mode, and the connection port 220 has a first pin 2220 and a second pin 2240 . As mentioned above, when the electronic device 20 to be tested and the connection port 220 conform to the battery charging specification version 1.2 of the Universal Serial Bus, the connection port 220 can be, for example, a standard downstream port (Standard Downstream Port, SDP), a charging downstream port (ChargingDownstream Port, CDP) and at least one of a dedicated charging port (Dedicated Charging Port, DCP). In one embodiment, the first pin 2220 of the connection port 220 is, for example, a D+ pin defined in the Universal Serial Bus specification, and the second pin 2240 is, for example, a D- pin defined in the Universal Serial Bus specification. In practice, the first pin 2220 of the connection port 220 can also be the D- pin defined in the USB specification, and the second pin 2240 is the D+ pin defined in the USB specification. In the following, the first pin 2220 is the D+ pin and the second pin 2240 is the D− pin as an example for illustration.

The transmission module 120 is electrically connected to the first pin 2220 of the connection port 220 , and the transmission module is electrically connected to the second pin 2240 of the connection port 220 . The transmission module 120 adjusts the voltage level of the first pin 2220 to a first voltage value, and the transmission module 120 detects the voltage level of the second pin. In one embodiment, the transmission module 120 is controlled by the control module 140 and adjusts the voltage level of the first pin 2220 to a first voltage value according to the instruction of the control module 140 , and detects the voltage level of the second pin 2240 . In this way, the control module 140 can determine that the charging mode of the electronic device 20 under test is the first fast charging mode or the second fast charging mode according to the second pin 2240 . The first voltage value is, for example, 0.6 volts (Volt, V). The first fast charging mode is, for example, a transmission mode in which the connection port 220 can support a charging downlink port, and the second fast charging mode is, for example, a transmission mode in which the connection port 220 can support a dedicated charging port, but it is not intended to be limit. Wherein, the control module is, for example, a central processing unit (Central Processing Unit, CPU), a microprocessor (micro control processor, CPU) or an application-specific integrated circuit (Application-specific integrated circuit, ASIC), but not limited thereto.

From another perspective, the control module 140 instructs the transmission module 120 to adjust the voltage level of the first pin 2220, and the control module 140 instructs the transmission module 120 to detect the voltage level of the second pin 2240, and the control module 140 according to the transmission module The detection result of 120 obtains the voltage level of the second pin 2240 , and determines whether the charging mode of the electronic device 20 under test is the first fast charging mode or the second fast charging mode according to the voltage level of the second pin 2240 .

In one embodiment, when the control module 140 determines that the voltage level of the first pin 2220 is substantially equal to the voltage level of the second pin 2240, the control module 140 determines that the charging mode of the electronic device 20 under test is the first fast charging mode. charge mode or the second fast charge mode. In one embodiment, when the control module 140 determines that the difference between the voltage level of the second pin 2240 and the first voltage value is not greater than a preset voltage threshold, the control module 140 determines the charging mode of the electronic device 20 under test It is the first fast charging mode or the second fast charging mode. The preset voltage threshold value can be freely defined by those with ordinary knowledge in the technical field after carefully reading this specification, and is not limited here.

In addition, in another embodiment, when it is determined that the charging mode of the electronic device 20 under test is the first fast charging mode or the second fast charging mode, the control module 140 further instructs the transmission module 120 to set the first pin 2220 and the second fast charging mode. The voltage level of one of the two pins 2240 is the second voltage value. The control module 140 further determines whether the charging mode of the electronic device 20 under test is the first fast charging mode or the second fast charging mode according to the voltage level of the other one of the first pin 2220 and the second pin 2240 . The second voltage value is, for example, 3.3 volts, but not limited thereto. Taking the aforementioned transmission mode in which the first fast charging mode corresponds to the charging downlink port and the second fast charging mode corresponds to the dedicated charging port as an example, when the control module 140 determines that the other of the first pin 2220 and the second pin 2240 When the voltage level is substantially the second voltage value, the control module 140 determines that the electronic device 20 under test has the first fast charging mode. And when the control module 140 determines that the voltage level of the other of the first pin 2220 and the second pin 2240 is not substantially the second voltage value, the control module 140 determines that the electronic device 20 under test has the second fast charging mode .

In one embodiment, when the control module 140 determines that the difference between the voltage level of the other of the first pin 2220 and the second pin 2240 and the second voltage value is not greater than another preset voltage threshold, the control The module 140 determines that the voltage level of the other one of the first pin 2220 and the second pin 2240 is substantially equal to the second voltage value. The preset voltage threshold value can be freely defined by those with ordinary knowledge in the technical field after carefully reading this specification, and is not limited here.

In addition, when the control module 140 determines that the charging mode of the electronic device under test 20 is not the first fast charging mode or the second fast charging mode, the control module 140 further obtains an identification signal from the electronic device under test 20 . The identification signal indicates whether the electronic device 20 under test has a standard charging mode. In the case that the electronic device 20 to be tested and the connection port 220 conform to the battery charging specification version 1.2 of the Universal Serial Bus, the standard charging mode is, for example, the transmission mode that the connection port 220 supports a standard down-type port. Furthermore, when the control module 140 determines that the charging mode of the electronic device under test 20 is neither the first fast charging mode nor the second fast charging mode, and the identification signal indicates that the charging mode of the electronic device under test 20 is the standard charging mode , the control module 140 determines that the charging mode of the electronic device 20 under test is the standard charging mode. From another perspective, the control module 140 further confirms that the charging mode of the electronic device 20 under test is indeed the standard charging mode through the identification signal.

In one embodiment, the control module 140 communicates with the electronic device under test via the first pin 2220 or the second pin 2240 to obtain an identification signal. In another embodiment, the test device 10 further has a communication module (not shown), and the control module 140 obtains the information from the electronic device under test 20 or other back-end servers in a wired or wireless manner through the communication module. relevant information. The above is just an example, but it is not limited to this in practice.

Please refer to FIG. 2. FIG. 2 is a functional block diagram of a testing device according to another embodiment of the present invention. In the embodiment shown in FIG. 2 , the components of the test device 30 and their relative relationships are similar to those in the embodiment shown in FIG. 1 , and the relevant details will not be repeated here. What is different from the embodiment shown in FIG. 1 is that the test device 30 further has a detection module 360 , a switch module 370 and a load module 380 . The control module 340 is electrically connected to the detection module 360 and the switch module 370 . The switch module 370 is electrically connected between the detection module 360 and the load module 380 . On the other hand, the connection port 220 further has a power pin 2260 , for example. In the case that the electronic device 20 under test and the connection port 220 comply with the battery charging specification version 1.2 of the Universal Serial Bus, the power pin 2260 is, for example, a VBUS pin.

The detection module 360 is electrically connected to the power pin 2260 of the connection port 220 . In the embodiment shown in FIG. 2 , when the control module 340 determines that the electronic device 20 under test has the first fast charging mode or the second fast charging mode, the control module 340 further adjusts the magnitude of the current flowing through the power supply pin 2260 to be preset current value. The detection module 360 detects the magnitude of the actual current flowing through the power pin 2260 . When the difference between the actual current and the preset current value is greater than the preset current threshold, the control module 340 determines that the connection port 220 is invalid.

More specifically, the load module 380 has an equivalent subload, and the test device 30 has an equivalent main load relative to the power pin 2260 . The control module 340 selectively electrically connects the equivalent sub-load to the equivalent main load, so as to adjust the magnitude of the current flowing through the power supply pin 2260 to a preset current value. In this embodiment, the control module 340 electrically connects the load module 380 to the detection module 360 by turning on the switch module 370 , so as to electrically connect the equivalent sub-load to the equivalent main load. In this way, the total equivalent load of the test device 30 relative to the power supply pin 2260 is adjusted, thereby adjusting the magnitude of the current flowing through the power supply pin 2260 to a preset current value.

Cooperating with the above, the test device 30 can adjust the voltage level of one of the first pin 2220 or the second pin 2240 and detect the voltage level of the other of the first pin 2220 or the second pin 2240 , so as to determine which charging mode of the electronic device 20 to be tested can be a standard downlink port, a charging downlink port, or a dedicated charging port. In addition, regardless of the charging mode of the electronic device 20 under test, the test device 30 can further determine whether the connection port 220 is invalid by adjusting the current flowing through the power pin 2260 .

Please refer to FIG. 3 again. FIG. 3 is a functional block diagram of a testing device according to another embodiment of the present invention. In the embodiment shown in FIG. 3 , the testing device 40 further has a function abnormality warning module 490 , and the function abnormality warning module 490 is electrically connected to the control module 440 . When the control module 440 determines that the connection port 220 is invalid, the abnormal function warning module 490 warns that the charging mode of the electronic device 20 under test is abnormal. In addition, when the control module 440 determines that the charging mode of the electronic device under test is neither the first fast charging mode nor the second fast charging mode, and the control module 440 cannot obtain the identification signal from the electronic device under test 20, the abnormal function warning module 490 The charging mode of the electronic device 20 under test is abnormal.

The abnormal function warning module 490 has a plurality of warning lights or speakers, for example. When the control module 440 determines that the electronic device 20 under test has one of the standard downlink port, the charging downlink port and the dedicated charging port, the control module 440 instructs the abnormal function warning module 490 to turn on one of the warning lights. When the control module 440 determines that the connection port 220 is invalid or the charging mode is abnormal, the control module 440 instructs the abnormal function warning module 490 to turn on the corresponding warning light. In another embodiment, the control module 440 further instructs the malfunction warning module 490 to issue an alarm through a speaker.

Based on the above, the utility model provides a test device, which is used to adjust the voltage level of one of the first pin and the second pin of the electronic device to be tested, and detect the voltage level of the first pin and the second pin. The voltage level of the other of the first pin and the second pin is used to determine whether the electronic device under test has a fast charging mode. On the other hand, the test device provided by the utility model can further adjust the voltage level of the first pin or the second pin, or adjust the current flowing through the power supply pin in the connection port, so as to further It is possible to accurately test which charging mode the electronic device under test has under the fast charging mode, and to test whether the multiple charging modes of the electronic device under test are normal. Thereby, the test device provided by the utility model can automatically test whether the connection port of the electronic device to be tested supports the fast charging mode, thereby avoiding the dilemma of manpower testing.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (9)

1. A test device, suitable for testing a connection port of an electronic device to be tested, the electronic device to be tested has a charging mode, and the connection port has a first pin and a second pin, characterized in that , the test fixture contains: A transmission module electrically connects the first pin and the second pin, the transmission module adjusts the voltage level of the first pin to a first voltage value, and the transmission module detects the voltage of the second pin voltage level; and A control module is electrically connected to the transmission module, and the control module judges whether the charging mode of the electronic device under test is a first fast charging mode or a second fast charging mode according to the voltage level of the second pin. 2. The test device according to claim 1, wherein when the control module determines that the difference between the voltage level of the second pin and the first voltage value is not greater than a preset voltage threshold, the The control module determines that the charging mode of the electronic device under test is the first fast charging mode or the second fast charging mode. 3. The test device according to claim 2, wherein the transmission module further sets the The voltage level of one of the first pin and the second pin is a second voltage value, and the control module further judges the voltage level of the other one of the first pin and the second pin. The charging mode of the electronic device under test is the first fast charging mode or the second fast charging mode. 4. The testing device according to claim 3, wherein the second voltage value is higher than the first voltage value. 5. The test device according to claim 3, further comprising a detection module, the detection module is electrically connected to a power supply pin in the connection port and is electrically connected to the control module, and the control module is further adjusted The magnitude of the current flowing through the power supply pin is a preset current value. The detection module detects the magnitude of an actual current flowing through the power supply pin. When the difference between the actual current magnitude and the preset current value is greater than When a preset current threshold is reached, the control module judges that the connection port is invalid. 6. The test device according to claim 5, further comprising a load module, the load module has an equivalent sub-load, the test device has an equivalent main load relative to the power supply pin, the control The module more selectively electrically connects the equivalent sub-load to the equivalent main load, so as to adjust the magnitude of the current flowing through the power supply pin to the preset current value. 7. The test device according to claim 5, further comprising a function abnormality warning module, the function abnormality warning module is electrically connected to the control module, when the control module judges that the connection port is invalid, the function is abnormal The warning module warns that the charging mode of the electronic device under test is abnormal. 8. The test device according to claim 1, wherein the control module further obtains an identification signal from the electronic device under test, the identification signal indicates whether the electronic device under test has a standard charging mode, when the control module When the module judges that the charging mode of the electronic device under test is neither the first fast charging mode nor the second fast charging mode, and the identification signal indicates that the charging mode of the electronic device under test is the standard charging mode, the control The module judges that the charging mode of the electronic device under test is the standard charging mode. 9. The test device according to claim 8, further comprising a function abnormality warning module, the function abnormality warning module is electrically connected to the control module, when the control module determines the charging mode of the electronic device under test When it is neither the first fast charging mode nor the second fast charging mode, and the control module does not obtain the identification signal from the electronic device under test, the abnormal function warning module warns that the charging mode of the electronic device under test is abnormal .