Parallel test circuit system and mini small table fan test system

Abstract

This invention discloses a parallel test circuit system and a mini desktop fan test system. The parallel test circuit system includes multiple test stations where motherboards under test are placed. Each motherboard under test has a charging interface and at least one test interface. The parallel test circuit system further includes: a charging module for charging all the motherboards under test, which has multiple charging terminals connected to the charging interfaces; and at least one test module, each test module having a number of test terminals matching the number of motherboards under test. The number of test modules matches the number of test interfaces on each motherboard under test, and different test modules are used to test different parameters of the motherboards under test. Compared with the prior art, this invention can simultaneously perform charging and functional tests on multiple groups of motherboards under test, greatly improving efficiency compared to traditional single-channel test solutions.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing, and in particular to a parallel test circuit system and a mini table fan test system. Background Technology

[0002] With the increasing demand for fans in different scenarios, mini table fans, which have emerged in recent years, are widely used in travel, office, camping and other scenarios due to their advantages such as small size, light weight, and portability.

[0003] During the production process, the operating motherboard of the mini table fan needs to simulate the circuit of the whole machine to test the charging function and the air volume adjustment function. Generally, a single-channel testing method is used. After connecting the charging interface and the test interface of the operating motherboard of the mini table fan, the test is simulated. This testing method is inefficient and relies on human senses to perceive the operating motherboard of the mini table fan's control of the fan's air volume adjustment function, which has the risk of subjective omissions and false detections.

[0004] Therefore, how to improve the efficiency of testing the charging function and airflow adjustment function of the mainboard of mini desk fans is a technical problem that the industry urgently needs to solve. Utility Model Content

[0005] To address the problem of low efficiency in testing the charging function and airflow adjustment function of the mainboard of a mini desk fan using a single-channel testing method in the existing technology, this utility model proposes a parallel testing circuit system and a mini desk fan testing system.

[0006] The technical solution of this utility model is to propose a parallel test circuit system, including multiple test stations on which motherboards 1 to be tested are placed. Each motherboard 1 to be tested has a charging interface 11 and at least one test interface 12. The parallel test circuit system further includes:

[0007] The charging module 2 is used to charge all the motherboards 1 under test, and has multiple charging terminals 23, which are connected to the charging interface 11 respectively.

[0008] At least one test module, each of the test modules having test terminals 42 matching the number of motherboards 1 to be tested, the number of test modules matching the number of test interfaces 12 on each motherboard 1 to be tested, and different test modules being used to test different parameters of the motherboard 1 to be tested.

[0009] Furthermore, the charging module 2 includes a charging power supply 21 and a plurality of voltage conversion units 22 connected to the charging power supply 21, the number of voltage conversion units 22 being the same as the number of the motherboard 1 to be tested;

[0010] Each of the voltage conversion units 22 has a charging input terminal connected to the charging power supply 21 and a charging output terminal serving as the charging terminal 23, the charging output terminal being connected to the charging interface 11.

[0011] Furthermore, the charging module 2 also includes a plurality of first switching switches 3, the number of which is half the number of the motherboard 1 to be tested;

[0012] Each of the first switching switches 3 is simultaneously connected in series in the connection lines between the two charging interfaces 11 and the charging terminals 23.

[0013] Furthermore, each of the motherboards to be tested 1 also includes a power supply battery 13, and the charging terminal 23 is connected to the power supply battery 13 through the charging interface 11;

[0014] The motherboard 1 under test is also provided with a charging indicator light and a full charge indicator light, which are used to indicate the charging status of the charging terminal 23.

[0015] Furthermore, the test module includes a voltage test module 4, and the voltage test module 4 has the same number of voltage test units 41 as the motherboard 1 under test. Each voltage test unit 41 has a voltage detection interface used as the test terminal 42, and the voltage detection interface is connected to the test interface 12.

[0016] Furthermore, the motherboard under test 1 has multiple operating positions, and the output voltage of the test interface 12 of the motherboard under test 1 is different under different operating positions;

[0017] The voltage testing module 4 detects the output voltage of the motherboard 1 under test at different operating levels in order to determine the operating status of the motherboard 1 under test.

[0018] Furthermore, the voltage test module 4 also includes a plurality of second switching switches 5, the number of which is half the number of the motherboard 1 to be tested;

[0019] Each of the second switching switches 5 is simultaneously connected in series in the connection lines between the two test interfaces 12 and the test terminals 42.

[0020] Furthermore, the voltage conversion unit 22 employs a DC-DC conversion circuit.

[0021] Furthermore, the voltage testing unit 41 is a voltage digital tube.

[0022] This utility model also proposes a mini table fan testing system, which adopts the above-mentioned parallel testing circuit system.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] 1. This utility model is used to test motherboards under test. It can be used for the operating motherboard of a mini desktop fan. During testing, the charging module has multiple charging terminals to test multiple motherboards under test at the same time. At the same time, each test module also has multiple test terminals that match the number of motherboards under test. Therefore, this utility model can perform charging tests and functional tests on multiple groups of motherboards under test at the same time, which greatly improves the testing efficiency.

[0025] 2. When performing functional tests, this utility model uses a voltage digital tube for voltage detection, which can easily and intuitively verify the airflow adjustment function. This solves the problems of subjective omissions and false detections that exist when the airflow adjustment function of the mini table fan's mainboard is perceived by human senses. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the connection between the charging module of this utility model and the motherboard under test;

[0029] Figure 3 This is a schematic diagram of the connection between the voltage testing module of this utility model and the motherboard under test;

[0030] Among them, 1 is the motherboard to be tested, 11 is the charging interface, 12 is the test interface, 13 is the power supply battery, and 14 is the external switch;

[0031] 2 is the charging module, 21 is the charging power supply, 22 is the voltage conversion unit, and 23 is the charging terminal;

[0032] 3 is the first switching switch;

[0033] 4 represents the voltage test module, 41 represents the voltage test unit, and 42 represents the test terminal;

[0034] 5 is the second switching switch. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0037] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0038] During the production process, the operating motherboard of the mini table fan needs to simulate the circuit of the whole machine to test the charging function and the air volume adjustment function. Generally, a single-channel testing method is used. After connecting the charging interface and the test interface of the operating motherboard of the mini table fan, the test is simulated. This testing method is inefficient and relies on human senses to perceive the operating motherboard of the mini table fan's control of the fan's air volume adjustment function, which has the risk of subjective omissions and false detections.

[0039] Based on the problems existing in the prior art, this utility model aims to improve the testing efficiency of the operating motherboard of mini desktop fans, while avoiding the risks of subjective omissions and false detections in the prior art.

[0040] The technical solution of this utility model is to propose a parallel test circuit system, please refer to [link / reference]. Figures 1 to 3 It includes multiple test stations where motherboards 1 to be tested are placed, and each motherboard 1 to be tested has a charging port 11 and at least one test port 12.

[0041] The parallel test circuit proposed in this utility model also includes:

[0042] The charging module 2 is used to charge all the motherboards 1 to be tested, and has multiple charging terminals 23, which are connected to the charging interface 11.

[0043] Multiple test modules, each with test terminals 42 matching the number of motherboards under test. The number of test modules matches the number of test interfaces 12 on each motherboard under test, and different test modules are used to test different parameters of the motherboards under test.

[0044] The parallel test circuit system proposed in this invention can be used on the operating motherboard of a mini desk fan, but is not limited to the operating motherboard of a mini desk fan.

[0045] Here, when the motherboard 1 to be tested is the operating motherboard of a mini desk fan, as can be seen from the background technology, the mini desk fan needs to be tested for charging and airflow adjustment. The charging test can be achieved through the charging module 2 and the charging interface 11, and the airflow adjustment function can be achieved through the test module and the test interface 12.

[0046] It should be noted that the functional test of the mini desk fan here is only for the airflow adjustment function. Therefore, for each mini desk fan's mainboard, it only has one test interface 12 for testing the airflow adjustment function. Correspondingly, in this embodiment, only one test module is needed, which is used to execute the airflow adjustment function of multiple mainboards 1 under test. In this implementation, the number of test terminals 42 of the test module is the same as the number of mainboards 1 under test. In this utility model, the test module is set as multiple voltage test units 4, each voltage test unit 4 having one test terminal 42, which is connected one-to-one with the test interface 12 of the mainboard 1 under test, thereby realizing the testing of the airflow adjustment function of multiple mainboards 1 under test.

[0047] Here, the motherboard 1 under test is the operating motherboard of the mini desk fan, which is only one embodiment of this utility model. It can be other motherboards, such as portable radios, etc., which may require more functional tests, such as volume level adjustment function test, channel listening adjustment function test, etc.

[0048] In this embodiment, since the radio has two functions that need to be tested, each radio's mainboard has two test interfaces 12 and two corresponding test modules, which are used for the volume level adjustment function test and the channel listening adjustment function test, respectively. Each test module needs to have multiple test terminals 42, which are connected to the mainboard of each radio, so as to realize the testing of multiple mainboards to be tested.

[0049] As can be seen from the above description of the embodiments, the present invention can test multiple motherboards to be tested simultaneously, and is not limited to the operating motherboard of a mini desktop fan. Compared with the single-channel test scheme in the traditional solution, it can greatly improve the test efficiency.

[0050] This article mainly focuses on charging tests and airflow adjustment tests of the operating motherboard of the mini desk fan. Therefore, in the following description, the motherboard under test 1 is used as the operating motherboard of the mini desk fan.

[0051] Please see Figure 2 In this utility model, the charging module 2 includes a charging power supply 21 and a plurality of voltage conversion units 22 connected to the charging power supply 21. The number of voltage conversion units 22 is the same as the number of motherboards 1 to be tested.

[0052] Each voltage conversion unit 22 has a charging input terminal connected to the charging power supply 21 and a charging output terminal used as a charging terminal 23, the charging output terminal being connected to the charging interface 11.

[0053] The purpose of setting up the charging module 2 here is mainly to test the charging function of the mini desk fan's mainboard. In this utility model, the charging module 2 has a charging power supply 21 for providing electrical energy, which provides a voltage of 220V. This voltage is generally much higher than the charging voltage of the mini desk fan's mainboard. If the charging power supply 21 is directly connected to the mini desk fan's mainboard, the mainboard may be damaged due to excessive voltage. To solve the above problem, this utility model provides the voltage conversion unit 22, which is used to convert the voltage provided by the charging power supply 21 into the charging voltage of the mini desk fan's mainboard.

[0054] In this utility model, the charging voltage of the main board of the mini table fan is 5V, and the voltage conversion unit 22 is used to convert the 220V voltage to the 5V voltage.

[0055] The voltage conversion unit 22 is set to be multiple and matched to the number of operating motherboards of the mini desk fan. This is to ensure that each operating motherboard of the mini desk fan can be connected to a voltage conversion unit 22 to realize the charging process, so as to charge multiple operating motherboards of the mini desk fan at the same time and realize the charging detection of multiple operating motherboards of the mini desk fan at the same time.

[0056] In other words, the present invention, through the above-mentioned charging module 2, has the following beneficial effects: 1. It can avoid damage to the operating motherboard of the mini desk fan caused by excessive charging voltage; 2. It can simultaneously perform charging detection on the operating motherboards of multiple mini desk fans.

[0057] Among them, mini desk fans are generally carried with them during use. To ensure their normal operation, they generally need to be equipped with a power supply battery 13. The charging module 2 mentioned above is used to charge the power supply battery 13. The charging detection mentioned above is actually to detect whether the power supply battery 13 can be charged normally.

[0058] For mini desk fans, in order to indicate their charging status, the mainboard of the mini desk fan is usually equipped with a charging indicator light and a full charge indicator light. These two indicators can be used to indicate the charging status of the power supply battery 13.

[0059] Based on the above description, the specific configuration of the motherboard 1 to be tested in this utility model is as follows: each motherboard 1 to be tested also includes a power supply battery 13, and the charging terminal 23 is connected to the power supply battery 13 through the charging interface 11.

[0060] The motherboard 1 under test is also equipped with a charging indicator light and a full charge indicator light, which are used to indicate the charging status of the charging terminal 23.

[0061] In a normal connection state, when the charging interface 11 is connected to the charging terminal 23 and charging is in progress, the charging indicator light will illuminate. At the same time, when the power supply battery 13 reaches the preset power, that is, when the power supply battery 13 is fully charged, the full charge indicator light will illuminate. Based on the illumination states of the charging indicator light and the full charge indicator light, the charging detection of the operating motherboard of the mini desk fan can be realized.

[0062] Furthermore, when charging the power supply battery 13 in the mini desk fan, if the power supply battery 13 is directly disconnected, the charging indicator light will illuminate as if the battery is fully charged since it is no longer in the charging position. In actual charging detection, waiting for the power supply battery 13 to fully charge would waste a considerable amount of time; therefore, the above logic can be used to perform the full-charge detection of the power supply battery 13.

[0063] That is, the present invention performs charging detection of the power supply battery 13 in two stages. The first stage is to perform charging detection. At this time, the charging interface 11 and the charging terminal 23 are connected normally, and the power supply battery 13 is also connected to the main board of the mini desk fan. At this time, the charging function is judged by whether the charging indicator light is lit. If the charging indicator light is lit, it indicates that the charging function is normal. If the charging indicator light is not lit, it indicates that the charging function is abnormal.

[0064] In the second stage, a full charge test is performed. At this time, the power supply battery 13 is disconnected from the operating motherboard of the mini desk fan, but the charging interface 11 and the charging terminal 23 are still connected normally. At this time, the charging module 2 normally provides power to the operating motherboard of the mini desk fan. However, the operating motherboard of the mini desk fan detects that the power supply battery 13 does not need to be charged (because the power supply battery 13 has been removed at this time), and will consider that the power supply battery 13 is fully charged, so that the full charge indicator light will light up. At this time, the full charge function can be verified by whether the full charge indicator light is lit. If the full charge indicator light is lit, it is determined that the full charge function verification is normal.

[0065] As can be seen from the above description, the charging indicator light and the fully charged indicator light are essential for detecting the charging of the power supply battery 13, and the above settings have the following effects:

[0066] The charging status of the power supply battery 13 can be displayed in real time through the charging indicator and the full charge indicator, and the indicator lights for charging detection and full charge detection can be used to intuitively reflect whether the charging function of the mini desktop fan's motherboard is normal.

[0067] In addition, this utility model provides an external switch 14 at the connection circuit between the power supply battery 13 and the operating main board of the mini desk fan. This external switch serves as the main control switch and is used to disconnect the power supply battery 13 from the operating main board of the mini desk fan, thereby ensuring safety.

[0068] Please see Figure 2 The charging module in this utility model also includes multiple first switching switches 3, the number of which is half the number of the motherboard 1 to be tested;

[0069] Each first switching switch 3 is simultaneously connected in series in the connection line between the two charging interfaces 11 and the charging terminal 23.

[0070] As mentioned above, this utility model can simultaneously test multiple motherboards 1 to be tested. However, when the number of motherboards to be tested is too large, the operation complexity may be too high. In order to simplify the operation complexity, this utility model sets up the aforementioned first switching switch 3.

[0071] As can be seen from the above settings, a first switching switch 3 is connected in series with the connection lines of every two charging interfaces 11 and charging terminals 23. It can be seen that when performing charging detection, the number of first switching switches 3 and the number of motherboards 1 to be tested are 1:2. Therefore, this utility model can achieve the effect of simplifying the operation complexity by using fewer first switching switches 3 to enable more motherboards 1 to participate in the detection.

[0072] The above settings are for the charging detection of the motherboard 1 under test in this utility model. It performs charging detection and full charge detection separately. The total power supply is achieved through a charging power supply 21. Then, multiple voltage conversion units 22 are connected to multiple motherboards 1 under test one by one to realize voltage conversion and separate power supply to each motherboard 1 under test.

[0073] The system includes charging and full-charge indicator lights, which allow for intuitive monitoring of the charging function.

[0074] As mentioned above, this utility model can also detect the airflow level adjustment function. For details on this detection, please refer to [link / reference needed]. Figure 3In this utility model, the motherboard 1 to be tested has multiple working positions, and the output voltage of the test interface 12 of the motherboard 1 to be tested is different under different working positions.

[0075] The test module includes a voltage test module 4, and the voltage test module 4 has the same number of voltage test units 41 as the motherboard 1 under test. Each voltage test unit 41 has a voltage detection interface used as a test terminal 42, and the voltage detection interface is connected to the test interface 12.

[0076] The voltage test module 4 detects the output voltage of the motherboard 1 under test at different operating levels in order to determine the operating status of the motherboard 1 under test.

[0077] Mini table fans generally have multiple operating speeds, such as a low airflow speed (speed 1), a medium airflow speed (speed 2), and a high airflow speed (speed 3), to meet different user needs. The voltage of the mini table fan varies depending on the operating speed. The idea of ​​this invention is to test the airflow speed adjustment function of the mini table fan based on these different voltages.

[0078] When the mini desk fan is set to the lowest setting, the airflow is relatively small, and the voltage for this setting is typically 4.4V.

[0079] When the mini desk fan is set to the second speed setting, the airflow is moderate, and the voltage for this setting is typically 6.5V.

[0080] When the mini desk fan is set to level three, the airflow is relatively strong, and the voltage for each level is generally 9.0V.

[0081] Therefore, in order to realize the above-mentioned air volume gear adjustment function test, it is only necessary to detect the gear voltage during gear adjustment. Therefore, the above-mentioned test module in this utility model includes a voltage test module 4.

[0082] It should be noted that the reason why only one voltage detection module 4 is set here is because this utility model is applied to the operating motherboard of a mini table fan, which only needs to detect the airflow adjustment function, so only one test module needs to be set. When applied to other motherboards that require multiple function tests, multiple test modules need to be set accordingly.

[0083] Here, consistent with the previous charging test setup, to enable simultaneous testing of multiple motherboards 1 under test, this invention includes a voltage testing module 4 with the same number of voltage detection units 41 as the motherboards 1 under test. This setup ensures that the test interface 12 of each mini-fan's control motherboard can be connected to a voltage detection unit 41, thereby enabling simultaneous functional testing of multiple motherboards 1 under test and improving testing efficiency.

[0084] Here, the voltage test module 4 is used to detect the output voltage of the motherboard 1 under test at different working levels. As mentioned above, when the operating motherboard of the mini table fan is at different working levels, its level voltage (that is, the output voltage here) is different. Therefore, after setting the voltage test module 4, the above-mentioned airflow level adjustment function can be tested.

[0085] In addition, there may be voltage deviations in the lower gear voltages of 4.4V for the first gear, 6.5V for the second gear, and 9.0V for the third gear. Therefore, in the actual testing process, an appropriate error range can be set, such as a 5% error range.

[0086] Based on the above settings, the logic for adjusting the fan speed of the mini desk lamp in this utility model is as follows:

[0087] First, set the mini desk lamp to level one. Then, use voltage testing module 4 to check if the voltage of the mini desk lamp's mainboard is within the 4.4V error range. If it is, set the mini desk lamp to level two. Then, use voltage testing module 4 again to check if the voltage of the mini desk lamp's mainboard is within the 6.5V error range. If it is, set the mini desk lamp to level three. Then, use voltage testing module 4 again to check if the voltage of the mini desk lamp's mainboard is within the 9.0V error range. If it is, then the fan speed adjustment function of the mini desk lamp's mainboard is determined to be working properly.

[0088] Conversely, if the result is negative in any of the above tests, it can be considered that the fan speed adjustment function of the mini desk lamp's mainboard is abnormal.

[0089] Please see Figure 3 In this utility model, the voltage test module 4 also includes multiple second switching switches 5, the number of which is half the number of the motherboard 1 to be tested;

[0090] Each second switching switch 5 is simultaneously connected in series in the connection line between the two test interfaces 12 and the test terminals 42.

[0091] As mentioned above, this utility model can simultaneously test multiple motherboards 1 to be tested. However, if the number of motherboards 1 to be tested is too large, the operation complexity may be too high. In order to simplify the operation complexity, this utility model sets up the aforementioned second switching switch 5.

[0092] As can be seen from the above settings, a second switch 5 is connected in series with the connection lines of every two test interfaces 12 and test terminals 42. It can be seen that when performing the airflow adjustment function test, the number of second switches 5 and the number of motherboards 1 to be tested is 1:2. Therefore, this utility model can achieve the effect of simplifying the operation complexity by using fewer second switches 5 to enable more motherboards 1 to participate in the test.

[0093] The above section describes the detection part of the airflow level adjustment function in this utility model. It uses a voltage testing unit 41 to detect the level voltage and determine whether the mini table fan is under the corresponding level voltage at different levels, thereby determining whether the airflow level adjustment function of the mini table fan's mainboard is normal.

[0094] Multiple voltage testing units 41 are set up simultaneously to enable simultaneous testing of the operating motherboards of multiple mini desk fans, thereby improving testing efficiency.

[0095] In summary, the core real-time logic of this utility model is as follows:

[0096] 1. Parallel architecture: This invention enables multi-channel detection simultaneously. Preferably, it has 8 channels, which allows for simultaneous testing of the motherboards of 8 mini desktop fans, maximizing efficiency.

[0097] 2. Group control: This utility model sets the first switching switch and the second switching switch as general to the motherboard under test. In the above example of 8 channels, this utility model can set 4 groups of first switching switches and 4 groups of second switching switches, which can realize the detection and control of the running motherboard of 8 mini desk fans, simplifying the operation complexity.

[0098] 3. Real-time feedback: The voltage testing unit in this invention displays the voltage of the gear in real time, which can intuitively show whether the airflow gear adjustment function of the mini table fan's mainboard is abnormal, reducing the error of manual testing.

[0099] Furthermore, in this invention, the voltage conversion unit 22 adopts a DC-DC conversion circuit.

[0100] The DC-DC converter circuit itself has a certain isolation function, which can separate the high voltage side and the low voltage side. As mentioned above, the voltage of 220V provided by the charging power supply 21 is much higher than the 5V charging voltage of the mini desk fan's mainboard. Therefore, based on the isolation function of the DC-DC converter circuit, the high voltage of the charging power supply 21 can be used to avoid damage to the mini desk fan's mainboard.

[0101] Furthermore, the voltage testing unit 41 in this utility model adopts a voltage digital tube.

[0102] It can realize the speed setting voltage of the mini table fan's mainboard in real time, allowing users to obtain the speed setting voltage more intuitively and thus intuitively determine whether the airflow speed setting adjustment function of the mini table fan's mainboard is abnormal, reducing the error of manual detection.

[0103] In summary, compared with the prior art, the present invention has at least the following beneficial effects:

[0104] 1. This utility model is used to test motherboards under test. It can be used for the operating motherboard of a mini desktop fan. During testing, the charging module has multiple charging terminals to test multiple motherboards under test at the same time. At the same time, each test module also has multiple test terminals that match the number of motherboards under test. Therefore, this utility model can perform charging tests and functional tests on multiple groups of motherboards under test at the same time, which greatly improves the testing efficiency.

[0105] 2. When performing functional tests, this utility model uses a voltage digital tube for voltage detection, which can easily and intuitively verify the airflow adjustment function. This solves the problems of subjective omissions and false detections that exist when the airflow adjustment function of the mini table fan's mainboard is perceived by human senses.

[0106] This invention also proposes a mini table fan testing system, which adopts the above-mentioned parallel testing circuit system.

[0107] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A parallel test circuit system, comprising multiple test stations on which motherboards (1) to be tested are placed, each motherboard (1) to be tested having a charging interface (11) and at least one test interface (12), characterized in that, The parallel test circuit system also includes: The charging module (2) is used to charge all the motherboards (1) under test and has multiple charging terminals (23), which are connected to the charging interface (11). At least one test module, each of the test modules having a number of test terminals (42) matching the number of the motherboards (1) to be tested, the number of the test modules matching the number of test interfaces (12) on each motherboard (1) to be tested, and different test modules being used to test different parameters of the motherboards (1) to be tested.

2. The parallel test circuit system according to claim 1, characterized in that, The charging module (2) includes a charging power supply (21) and a plurality of voltage conversion units (22) connected to the charging power supply (21). The number of voltage conversion units (22) is the same as the number of the motherboard (1) to be tested. Each of the voltage conversion units (22) has a charging input terminal connected to the charging power supply (21) and a charging output terminal serving as the charging terminal (23), the charging output terminal being connected to the charging interface (11).

3. The parallel test circuit system according to claim 1, characterized in that, The charging module (2) also includes a plurality of first switching switches (3), the number of which is half the number of the motherboard (1) to be tested; Each of the first switching switches (3) is simultaneously connected in series in the connection lines between the two charging interfaces (11) and the charging terminals (23).

4. The parallel test circuit system according to claim 2, characterized in that, Each of the motherboards under test (1) also includes a power supply battery (13), and the charging terminal (23) is connected to the power supply battery (13) through the charging interface (11); The motherboard (1) under test is also provided with a charging indicator light and a full charge indicator light, which are used to indicate the charging status of the charging terminal (23).

5. The parallel test circuit system according to claim 1, characterized in that, The test module includes a voltage test module (4), and the voltage test module (4) has the same number of voltage test units (41) as the motherboard (1) to be tested. Each voltage test unit (41) has a voltage detection interface used as the test terminal (42), and the voltage detection interface is connected to the test interface (12).

6. The parallel test circuit system according to claim 5, characterized in that, The motherboard under test (1) has multiple working positions, and the output voltage of the test interface (12) of the motherboard under test (1) is different under different working positions; The voltage test module (4) detects the output voltage of the motherboard under test (1) at different working positions to determine the operating status of the motherboard under test (1).

7. The parallel test circuit system according to claim 5, characterized in that, The voltage test module (4) also includes a plurality of second switching switches (5), the number of which is half the number of the motherboard (1) to be tested; Each of the second switching switches (5) is simultaneously connected in series in the connection lines between the two test interfaces (12) and the test terminals (42).

8. The parallel test circuit system according to claim 2, characterized in that, The voltage conversion unit (22) adopts a DC-DC conversion circuit.

9. The parallel test circuit system according to claim 5, characterized in that, The voltage testing unit (41) is a voltage digital tube.

10. A mini desk fan testing system, characterized in that, The mini desk fan testing system adopts the parallel test circuit system as described in any one of claims 1 to 9.

Images