Charger testing device, charger testing system and testing method

Abstract

The invention discloses a charger testing device, a charger testing system and a testing method. The charger testing device comprises a shell and a display panel, the shell is provided with a charging interface, a containing space is formed in the shell to place a battery unit, the battery unit is suitable for supplying power to a tumor electric field therapeutic instrument, and the charging interface is suitable for being connected with a charger; the display panel is connected with the charging interface, a parameter detection unit is arranged on the display panel, the parameter detection unit is suitable for detecting charging parameters of the battery unit, and the display panel can display the charging parameters of the battery unit and control the charger to display the state of the battery unit according to the charging parameters. The charging parameter and the state of the battery unit are used for representing the charging performance of the charger. According to the charger testing device, the charging performance of the charger can be judged according to the charging parameters of the battery unit and the state of the battery unit, and a user can visually know whether the relevant charging parameters of the battery unit reach expected values or not through the display panel.

Description

Technical Field

[0001] The present invention relates to the technical field of charger testing, and in particular to a charger testing device and a charger testing system and a testing method comprising the charger testing device. Background Art

[0002] One power supply method for tumor electric field therapy devices is battery power supply. The battery is charged by a dedicated charger. When testing the charging performance of the charger, manual testing is usually used. First, the battery is inserted into the charging compartment of the charger and the indicator light status of the charging compartment is observed. This operation cannot accurately determine whether the charger is faulty or whether the charging is normal. Furthermore, the charging process takes a long time. If you want to test whether the battery voltage reaches the expected value, you need to remove the battery from the charger and manually measure its voltage and current, which makes the charging test process unintuitive and inefficient. Summary of the invention

[0003] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, the present invention provides a charger testing device that can conveniently judge the charging performance of the charger and visualize the charging parameters.

[0004] The present invention also provides a charger testing system having the charger testing device and a testing method thereof.

[0005] A charger testing device according to an embodiment of the present invention comprises: a shell and a display panel, wherein a charging interface is provided on the shell, and a receiving space is formed inside the shell to place a battery cell, wherein the charging interface is suitable for connecting a charger to be tested so that the charger can charge the battery cell; the display panel is electrically connected to the charging interface, and a parameter detection unit is provided on the display panel, wherein the parameter detection unit is suitable for detecting the charging parameters of the battery cell, and the display panel is configured to display the charging parameters of the battery cell and collect the status of the battery cell for display, wherein the charging parameters and the status of the battery cell are used to characterize the charging performance of the charger.

[0006] According to the charger testing device of the embodiment of the present invention, the charging performance of the charger can be judged according to the charging parameters of the battery cell and the status of the battery cell. In addition, the charging parameters of the battery cell are displayed on the display panel, so that the user can intuitively understand whether the relevant charging parameters of the battery cell reach the expected values. The charger testing device is simple to operate and has high reliability.

[0007] According to some embodiments of the present invention, the parameter detection unit includes at least one of a voltage acquisition unit and a current acquisition unit, the voltage acquisition unit is suitable for acquiring a charging voltage of the battery cell, and the current acquisition unit is suitable for acquiring a charging current of the battery cell.

[0008] Further, the display panel is also configured to determine the state of the battery cell according to at least one of the charging voltage and the charging current.

[0009] Furthermore, the display panel is also configured to determine the state of the battery cell according to different voltage intervals of the charging voltage and / or different current intervals of the charging current, wherein the state of the battery cell includes an over-discharge state, a charging state and a fully charged state.

[0010] According to some embodiments of the present invention, a status detection unit is also provided on the display panel, and the status detection unit is suitable for detecting the status of the battery cell to generate a first status detection signal. The display panel is also configured to determine whether the charger is abnormal based on at least one of the charging voltage, the charging current and the first status detection signal.

[0011] According to some embodiments of the present invention, a status detection unit is also provided on the display panel, and the status detection unit is suitable for detecting the status of the battery cell to generate a first status detection signal. The display panel is also configured to generate a second status detection signal of the battery cell based on at least one of the charging voltage and the charging current, and determine that the charger is abnormal when the first status detection signal does not match the second status detection signal.

[0012] According to some embodiments of the present invention, an alarm unit is further provided on the display panel, and the display panel is further configured to control the alarm unit to issue an alarm prompt when it is determined that the charger is abnormal.

[0013] According to some embodiments of the present invention, the charger testing device further includes: a control board, which is electrically connected to the battery cell and the display panel, respectively, and the control board is configured to convert the voltage of the battery cell to obtain a power supply voltage, and the power supply voltage is used to power the display panel.

[0014] Furthermore, the control board is connected to the charging interface and is also configured to control the charging of the battery unit according to the current and / or voltage output by the charger.

[0015] According to some embodiments of the present invention, a display port communicating with the receiving space is formed on the shell, and the display panel includes a display area, which is exposed from the display port.

[0016] Optionally, the shell includes a shell cover and a shell base that cover and fix each other, and the shell cover and the shell base enclose the accommodating space, the display port is opened on the shell base, and the charging interface is arranged on the shell cover or the shell base.

[0017] According to some embodiments of the present invention, the display port is opened at a first end of the shell, and a second end opposite to the first end of the shell is configured as an insertion end for inserting a charging compartment of a charger.

[0018] According to some embodiments of the present invention, the charging interface is provided with a charging probe, the charging probe includes a probe positive pole and a probe negative pole, the battery unit has a battery positive pole and a battery negative pole, the probe positive pole is electrically connected to the battery positive pole, and the probe negative pole is electrically connected to the battery negative pole; the voltage acquisition unit is connected in parallel to the probe positive pole and the probe negative pole, and the current acquisition unit is connected in series between the probe positive pole and the positive pole of the charging contact pin of the charger or between the probe negative pole and the negative pole of the charging contact pin of the charger.

[0019] According to some embodiments of the present invention, the display panel and the control panel are both installed and fixed in the housing, and the control panel is located between the display panel and the battery unit.

[0020] According to another aspect of the present invention, a charger testing system includes: the above-mentioned charger testing device and a charger, wherein the charger has an indicator light, a mains power interface and at least one charging compartment, wherein the charging compartment is provided with a charging contact pin for electrically connecting to the charging interface, and the indicator light is used to display the status of the corresponding battery cell.

[0021] According to the charger testing system of the embodiment of the present invention, the charging performance of the charger can be judged according to the charging parameters of the battery cell and the status of the battery cell. In addition, the charging parameters of the battery cell are displayed on the display panel, so that the user can intuitively understand whether the relevant charging parameters of the battery cell reach the expected values. The charger testing device is simple to operate and has high reliability.

[0022] According to another aspect of the present invention, a charger testing method adopts the above charger testing system, and the specific steps of the testing method are as follows:

[0023] S1. Place the charging test device in the charging compartment so that the charging probe at the charging interface is electrically connected to the charging contact pin;

[0024] S2. The display panel collects the charging parameters and status of the charging test device;

[0025] S3. The display panel inputs the collected charging parameters and status into the MCU set in the display panel, and the MCU determines the charging performance of the charger by the charging parameters and status;

[0026] S4. The MCU outputs the judgment result to the display panel.

[0027] According to some embodiments of the present invention, the charging parameters and status include charging voltage, charging current and indicator light status.

[0028] According to some embodiments of the present invention, the MCU stores therein preset voltage intervals, preset current intervals, and indicator light states corresponding to charging states different from those of the charger testing device.

[0029] According to some embodiments of the present invention, the MCU stores therein preset voltage intervals, preset current intervals, and indicator light states corresponding to charging states different from those of the charger testing device, specifically:

[0030] 1) When the charger test device is in an over-discharge state, the preset voltage range is 0.01V to 1V, the preset current range is 700mA to 800mA, and the indicator light flashes;

[0031] 2) When the charger test device is in charging state, the preset voltage range is 24V to 31V, the preset current range is 750mA to 1A, and the indicator light flashes;

[0032] 3) When the charger test device is in a fully charged state, the preset voltage range is 32V to 33.6V, the preset current range is 550mA to 1A, and the indicator light remains on.

[0033] According to some embodiments of the present invention, the aforementioned step S2 is specifically as follows:

[0034] The MCU compares the sampled charging current, charging voltage, and indicator light status data with the charging parameters and status preset in the MCU:

[0035] When the charging current value, charging voltage value and indicator light state of the charger test device in any state are in accordance with the current range, voltage range and indicator light state of the corresponding state, the charging performance of the charger is in good condition, and the MCU outputs to the display panel to display output PASS;

[0036] When any one of the charging current value or the charging voltage value is not within the numerical range of the corresponding state or the indicator light state is incorrect, the charger is faulty, and the MCU outputs an alarm to the display panel.

[0037] The charger testing method according to the embodiment of the present invention can quickly judge the performance of the charger, improve the detection efficiency and have high reliability.

[0038] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a three-dimensional schematic diagram of a charger testing device according to an embodiment of the present invention;

[0040] Figure 2 for Figure 1 A three-dimensional schematic diagram of the charger test device shown in another perspective;

[0041] Figure 3 for Figure 1 An exploded schematic diagram of the charger test device shown;

[0042] Figure 4 for Figure 1 Another exploded schematic diagram of the charger test setup shown;

[0043] Figure 5 for Figure 1 A schematic diagram of a charging interface of the charger test device shown;

[0044] Figure 6 for Figure 1 The connection diagram of the battery unit, display panel and charger of the charger test device shown;

[0045] Figure 7 for Figure 1 The internal circuit principle diagram of the charger test device shown;

[0046] Figure 8 for Figure 1 The schematic diagram of the internal circuit principle of the display panel of the charger test device shown;

[0047] Fig. 9 for Figure 1 The test flow diagram of the charger test device shown;

[0048] Fig.10 for Figure 1 A schematic diagram of electrical connections of a charger test system of the charger test device shown;

[0049] Fig.11 It is a three-dimensional schematic diagram of the charger of the present invention.

[0050] Reference numerals:

[0051] Charger testing device 100, shell 1, shell cover 11, charging probe 111, probe positive pole 111a, probe negative pole 111b, charging interface 112, shell base 12, display port 121, accommodating space 13, current acquisition unit 151, voltage acquisition unit 153, battery unit 2, battery interface 21, display panel 3, control panel 4, control panel interface 41, charger 200, charging compartment 210, indicator light 220, AC power interface 230. DETAILED DESCRIPTION

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0053] Combine the following Figure 1-Figure 11 A charger testing device 100 and a charger testing system including the charger testing device 100 according to an embodiment of the present invention are described in detail.

[0054] Reference Fig.11 The charger 200 to be tested has an indicator light 220 for displaying the battery charging status and at least one charging compartment 210 for plugging in a battery. The charging compartment 210 is provided with charging contact pins (not shown) for electrically connecting to the battery to be charged or the charger testing device 100.

[0055] Reference Figure 1-Figure 4 As shown, the charger testing device 100 according to the embodiment of the present invention comprises: a housing 1 , a battery unit 2 disposed in the housing 1 , and a display panel 3 disposed in the housing 1 and partially exposed from the housing 1 .

[0056] Among them, combined Figure 1 , Figure 3-Figure 4 , Fig.11 The shell 1 includes a shell cover 11 and a shell base 12 that cover and fix each other, and the shell cover 11 and the shell base 12 are arranged to form a receiving space 13 for receiving the battery cell 2 and the display panel 3. Optionally, the shell cover 11 and the shell base 12 can be fixed by snapping, or by using fasteners, or by welding, bonding, etc., or by a combination of multiple fixing methods. A charging interface 112 is provided on the shell cover 11 or the shell base 12 for electrically connecting to the charger 200 so that the charger 200 can charge the battery cell 2. Specifically, the charging interface 112 is provided on the shell cover 11, and is electrically connected to the battery cell 2. When the charging interface 112 is connected to the charger 200, the charger 200 can charge the battery cell 2 through the charging interface 112. In combination Figure 1 , Figure 3-Figure 5 , Figure 7The charging interface 112 is provided with a charging probe 111, and the charging probe 111 includes a probe positive pole 111a and a probe negative pole 111b. The battery unit 2 has a battery positive pole (not shown) and a battery negative pole (not shown). The probe positive pole 111a is electrically connected to the battery positive pole (not shown), and the probe negative pole 111b is electrically connected to the battery negative pole (not shown).

[0057] Reference Figure 4 As shown, the shell 1 is also provided with a display port 121 connected to the receiving space 13, and the display area of ​​the display panel 3 is exposed from the display port 121. Specifically, the display port 121 is provided at the first end of the shell 1, and the second end opposite to the first end of the shell 1 is configured as an insertion end (not numbered) for inserting the charging compartment 210 of the charger 200, and the charging interface 112 is provided at the insertion end (not numbered) to facilitate electrical connection with the charging contact pins (not shown) in the charging compartment 210. Specifically, the shell 1 is in the shape of a long strip, and the length direction of the shell 1 is the F1-F2 direction, the first end of the shell 1 is the F1 end, and the second end of the shell 1 is the F2 end and the insertion end. After the charger test device 100 is placed in the charging compartment 210 of the charger 200, the display panel 3 is exposed, so that the user can read the display information on the display panel 3, such as the charging voltage information, the charging current information, and the charging performance information of the charger 200. When the charger 200 is charging the battery unit 2 , the charging performance of the charger 200 can be judged according to the relevant charging parameters and status of the battery unit 2 .

[0058] Combination Figure 3-Figure 4 , Figure 6 , the display panel 3 is connected to the charging interface 112. Specifically, the display panel 3 and the charging interface 112 are electrically connected via a wire (not shown). A parameter detection unit is provided on the display panel 3 to detect the charging parameters of the battery cell 2. The display panel 3 is configured to display the charging parameters of the battery cell 2, and acquire the charging status of the battery cell 2 by collecting the status of the indicator light 220 of the charger 200. Among them, the charging parameters of the battery cell 2 and the charging status of the battery cell 2 are used to characterize the charging performance of the charger 200. In this way, the user can not only intuitively understand whether the relevant charging parameters of the battery cell 2 have reached the expected values ​​through the display panel 3, but also intuitively understand the charging performance of the charger 200, and directly judge whether the charger 200 is defective and whether the charging is normal.

[0059] Optionally, combined Figure 3-Figure 4 , Figure 8The display panel 3 is also provided with an MCU (Microcontroller Unit) and a result output liquid crystal display unit. The parameter detection unit is electrically connected to the MCU, and the MCU is electrically connected to the result output liquid crystal display unit. The parameter detection unit outputs the detected charging parameters of the battery cell 2 to the MCU, and the MCU outputs the charging parameters of the battery cell 2 to the result output liquid crystal display unit. The result output liquid crystal display unit is used to display the charging parameters of the battery cell 2, which is convenient for users to read directly.

[0060] In the related art, after inserting the battery into the charging compartment of the charger, the charging status of the battery can only be judged by observing the status of the indicator light on the charger. It is impossible to accurately judge whether the charger is defective or whether the charging is normal, and the charging process takes a long time. If you want to test whether the battery voltage reaches the expected value, you need to take the battery out of the charger and then use a multimeter to test the voltage at both ends of the battery. The charging test process is not intuitive, time-consuming and inefficient. According to the charger testing device 100 of the embodiment of the present invention, it is possible to intuitively and quickly judge the charging performance of the charger 200 according to the charging parameters of the battery cell 2 and the charging status of the battery cell 2, with high accuracy. In addition, the charging parameters of the battery cell 2 are displayed on the display panel 3, which is convenient for the user to intuitively understand whether the relevant charging parameters of the battery cell 2 have reached the expected value. The charger testing device 100 is simple to operate and has high reliability.

[0061] In some embodiments of the present invention, Figure 3-Figure 4 , Figure 6-Figure 8 The parameter detection unit includes at least one of a voltage acquisition unit 153 and a current acquisition unit 151. The voltage acquisition unit 153 is connected in parallel to the probe positive electrode 111a and the probe negative electrode 111b to acquire the charging voltage of the battery cell 2. The current acquisition unit 151 is connected in series between the probe positive electrode 111a and the positive electrode of the charging contact pin of the charger 200 or between the probe negative electrode 111b and the negative electrode of the charging contact pin of the charger 200 to acquire the charging current of the battery cell 2.

[0062] In some embodiments, the parameter detection unit includes a voltage acquisition unit 153, and the display panel 3 collects and displays the charging voltage value of the battery cell 2 through the voltage acquisition unit 153, so that the user can intuitively understand the charging voltage of the battery cell 2 and determine whether it reaches the expected value.

[0063] In other embodiments, the parameter detection unit includes a current acquisition unit 151, and the display panel 3 collects and displays the charging current value of the battery cell 2 through the current acquisition unit 151, so that the user can intuitively understand the charging current of the battery cell 2 and determine whether it reaches the expected value.

[0064] In some other embodiments, the parameter detection unit includes a voltage acquisition unit 153 and a current acquisition unit 151. The display panel 3 simultaneously acquires and displays the charging voltage value and the charging current value of the battery cell 2 through the voltage acquisition unit 153 and the current acquisition unit 151, so that the user can intuitively understand the charging voltage and charging current of the battery cell 2 and judge whether both reach the expected values.

[0065] Optionally, refer to Figure 8 The charging voltage collected by the voltage collection unit 153 is output to the MCU through the operational power amplifier, and the charging current collected by the current collection unit 151 is output to the MCU through the operational power amplifier.

[0066] In some other optional embodiments, a voltmeter may be used to collect the charging voltage of the battery cell 2 , and an ammeter may be used to collect the charging current of the battery cell 2 .

[0067] In some embodiments of the present invention, the display panel 3 is also configured to determine the state of the battery cell 2 according to different voltage intervals of the charging voltage and / or different current intervals of the charging current, wherein the state of the battery cell 2 includes an over-discharge state, a charging state, and a fully charged state.

[0068] Optionally, in some embodiments, the display panel 3 determines the state of the battery cell 2 according to the different voltage intervals of the charging voltage. For example, when the voltage interval is 0.01V to 1V, the battery cell 2 is in an over-discharge state, and the indicator light 220 flashes; when the voltage interval is 24V to 31V, the battery cell 2 is in a charging state, and the indicator light 220 flashes; when the voltage interval is 32V to 33.6V, the battery cell 2 is in a fully charged state, and the indicator light 220 remains on.

[0069] In other embodiments, the display panel 3 determines the state of the battery cell 2 according to the different current intervals of the charging current. For example, when the current interval is 700mA to 800mA, the battery cell 2 is in an over-discharge state, and the indicator light 220 flashes; when the current interval is 750mA to 1A, the battery cell 2 is in a charging state, and the indicator light 220 flashes; when the current interval is 550mA to 1A, the battery cell 2 is in a fully charged state, and the indicator light 220 remains on. Of course, the value of the current interval is not limited. When the battery cell 2 is in different states of over-discharge, charging and fully charged, the current intervals of the corresponding states can also be set to be non-intersecting. For example, the current interval corresponding to the over-discharge state is 700mA to 800mA, the current interval corresponding to the charging state is 801mA to 1A, and the current interval corresponding to the fully charged state is 550mA to 699mA. This makes it convenient to more accurately judge the state of the battery cell 2 according to the current interval.

[0070] In some other embodiments, the display panel 3 determines the state of the battery cell 2 according to different voltage intervals of the charging voltage and different current intervals of the charging current. For example, when the voltage interval is 0.01V to 1V and the current interval is 700mA to 800mA, the battery cell 2 is in an over-discharge state, and the indicator light 220 flashes; when the voltage interval is 24V to 31V and the current interval is 750mA to 1A, the battery cell 2 is in a charging state, and the indicator light 220 flashes; when the voltage interval is 32V to 33.6V and the current interval is 550mA to 1A, the battery cell 2 is in a fully charged state, and the indicator light 220 remains on.

[0071] In some embodiments of the present invention, a status detection unit is also provided on the display panel 3, which is used to detect the status of the indicator light 220 corresponding to the charging status of the battery unit 2 to generate a first status detection signal. The display panel 3 is also configured to determine whether the charger 200 is abnormal based on at least one of the charging voltage, the charging current and the first status detection signal.

[0072] Optionally, refer to Figure 7-Figure 8 , the state detection unit can be connected to the charger 200 and collect the state of the corresponding indicator light 220 to generate a first state detection signal. The state detection unit can also be connected to the MCU. The MCU compares the sampled charging voltage, charging current, and first state detection signal with the charging state preset in the MCU. The charging state preset in the MCU is specifically: preset voltage interval, preset current interval, and preset indicator light state. When at least one of the charging voltage, charging current, and first state detection signal does not match the charging state preset in the MCU, the charger 200 is determined to be abnormal, and the display panel 3 can send an alarm signal; when each of the charging voltage, charging current, and first state detection signal matches the charging state preset in the MCU, the charger 200 is determined to be normal and the charging performance is good. The MCU outputs the result to the result output liquid crystal display unit, and the result output liquid crystal display unit displays the output "PASS" information.

[0073] In other embodiments of the present invention, a state detection unit is further provided on the display panel 3, which is used to detect the state of the indicator light 220 corresponding to the charging state of the battery cell 2 to generate a first state detection signal. The display panel 3 is also configured to generate a second state detection signal of the battery cell 2 according to at least one of the charging voltage and the charging current, and determine that the charger 200 is abnormal when the first state detection signal does not match the second state detection signal. Specifically, the state detection unit is connected to the charger 200 to collect the state of the corresponding indicator light 220 to generate the first state detection signal. The state detection unit is also connected to the MCU, and the MCU also generates the second state detection signal of the battery cell 2 according to at least one of the charging voltage and the charging current. The MCU determines whether the first state detection signal matches the second state detection signal. When the first state detection signal does not match the second state detection signal, it is determined that the charger 200 is abnormal, and the display panel 3 can send an alarm signal; when the first state detection signal matches the second state detection signal, it is determined that the charger 200 is normal and the charging performance is good. The MCU outputs the result to the result output liquid crystal display unit, and the result output liquid crystal display unit displays the output "PASS" information.

[0074] In some embodiments of the present invention, the display panel 3 is further provided with an alarm unit (not shown), and the display panel 3 is further configured to control the alarm unit (not shown) to give an alarm prompt when it is determined that the charger 200 is abnormal. Optionally, the alarm unit (not shown) includes a buzzer (not shown), and when it is determined that the charger 200 is abnormal, the display panel 3 controls the buzzer (not shown) to emit a buzzer to remind the user to pay attention to the abnormality of the charger 200. The buzzer can be a continuous buzzer or an intermittent buzzer.

[0075] In some embodiments of the present invention, reference Figure 3-Figure 4 , Fig.10 As shown, the charger testing device 100 may further include a control board 4, which is electrically connected to the battery cell 2 and the display panel 3 respectively. The control board 4 is configured to convert the voltage of the battery cell 2 to obtain a power supply voltage for powering the display panel 3. The control board 4 can control the battery cell 2 to power the display panel 3 to ensure that the display panel 3 can display the charging parameters of the battery cell 2, and collect the display status of the indicator light 220 to determine whether the charging performance of the charger 200 is good.

[0076] Furthermore, the control board 4 is connected to the charging interface 112, and the control board 4 is also configured to control the charging of the battery cell 2 according to the current and / or voltage output by the charger 200. In other words, the control board 4 can control the charging of the battery cell 2 by the charger 200. Specifically, the charging interface 112 is connected to the control board 4, and the control board 4 controls the charging of the battery cell 2 by the charger 200 through the charging interface 112.

[0077] In some embodiments of the present invention, the control panel 4 and the display panel 3 are both installed and fixed in the housing 1. Optionally, the display panel 3 and the housing 1 can be fixed by fasteners such as bolts and rivets, or by clamping, bonding, welding, etc. Similarly, the control panel 4 and the housing 1 can be fixed by fasteners such as bolts and rivets, or by clamping, bonding, welding, etc.

[0078] In some embodiments of the present invention, the control panel 4 is located between the display panel 3 and the battery unit 2, so that the display panel 3 can shield the control panel 4, thereby preventing the control panel 4 from being exposed.

[0079] According to another embodiment of the present invention, a charger testing system may include the charger testing device 100 and the charger 200 of the above embodiment, wherein the charger 200 has an indicator light 220 and at least one charging compartment 210, wherein the charging compartment 210 is provided with a charging contact pin (not shown) for electrically connecting to the charging interface 112, and the indicator light 220 is used to display the charging status of the corresponding battery cell 2. Optionally, there are multiple charging compartments 210, so that the charger 200 can charge multiple batteries at a time, thereby improving the charging efficiency of the charger 200. Of course, there can also be one charging compartment 210. Fig.11 In the specific example shown, there are three charging compartments 210, and an indicator light 220 is correspondingly disposed outside each charging compartment 210. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0080] In some embodiments of the present invention, reference Fig.11 As shown, the charger 200 is also provided with a mains power interface 230 for connecting to the mains power to power the charging compartment 210 , and the charging compartment 210 further charges the battery unit 2 of the charger testing device 100 plugged into the charging compartment 210 .

[0081] In some embodiments of the present invention, reference Fig. 9 As shown, the test method for testing the charging performance of the charger 200 using the charger test device 100 of the present invention includes:

[0082] Place the charger testing device 100 in one of the charging compartments 210 so that the charging probe 111 is electrically connected to the charging contact pins in the charging compartment 210;

[0083] The display panel 3 collects the charging voltage, charging current and status of the indicator light 220 of the charger testing device 100;

[0084] Compare the collected charging voltage, charging current, and indicator light 220 status with the preset voltage range, preset current range, and preset indicator light 220 status stored in the MCU;

[0085] When the charging voltage is within the preset voltage range, the charging current is within the preset current range, and the indicator light 220 state is consistent with the preset indicator light 220 state, the display panel 3 displays that the charger 200 is qualified;

[0086] Otherwise, the display panel 3 displays that the charger 200 is unqualified.

[0087] Furthermore, the MCU stores a preset over-discharge state, a preset charging state and a preset full-charge state. When the collected charging voltage, charging current, and indicator light 220 state are consistent with the preset parameters of one of the preset over-discharge state, the preset charging state, and the preset full-charge state, the display panel 3 displays that the charger 200 is qualified; otherwise, the display panel 3 displays that the charger 200 is unqualified.

[0088] The following describes a charger testing system according to a specific embodiment of the present invention.

[0089] The charger testing system includes a charger testing device 100 and a charger 200. Figure 1-Figure 5 The charger test device 100 includes a housing 1 and a battery unit 2, a display panel 3, and a control panel 4, all of which are arranged in the housing 1. The housing 1 includes a housing cover 11 and a housing base 12 that cover and fix each other, and the housing cover 11 and the housing base 12 are arranged to form a receiving space 13 to receive the battery unit 2, the display panel 3, and the control panel 4. A display port 121 is provided at the F1 end of the housing base 12. The display panel 3 is a liquid crystal display function panel, and the display area of ​​the display panel 3 is exposed from the display port 121. A charging interface 112 is provided at the F2 end of the housing cover 11. The charging interface 112 is provided with a charging probe 111. The charging probe 111 includes a probe positive electrode 111a and a probe negative electrode 111b. The probe positive electrode 111a and the probe negative electrode 111b are respectively electrically connected to the positive electrode (not shown) and the negative electrode (not shown) of the battery unit 2 through a wire (not shown).

[0090] refer to Figure 3-Figure 4 The battery unit 2 is provided with a battery interface 21, and the battery interface 21 is electrically connected to a control board interface 41 provided on the control board 4 through a wire (not shown). Figure 7-Figure 8, the display board 3 is provided with a voltage acquisition unit 153 and a current acquisition unit 151. The voltage acquisition unit 153 is connected to the probe positive electrode 111a and the probe negative electrode 111b in parallel through a wire (not shown), and the current acquisition unit 151 is connected in series between the probe positive electrode 111a and the charging contact pin positive electrode (not shown) of the charger 200 through a wire (not shown). Under normal charging test conditions, the charging voltage measured by the voltage acquisition unit 153 and the charging current measured by the current acquisition unit 151 are sampled and displayed on the display board 3. The display board 3 is also connected to the 3.3V output port (not shown) of the control board 4 through a wire (not shown). The control board 4 is also electrically connected to the charging probe 111.

[0091] refer to Fig.11 The charger 200 has a mains interface 230, three charging compartments 210 and three indicator lights 220. The three charging compartments 210 are arranged in parallel and are used to insert batteries or charger test devices 100 that need to be charged. Each charging compartment 210 is provided with a positive charging contact pin (not shown) and a negative charging contact pin (not shown) for electrically connecting to the charging interface 112. The indicator lights 220 are arranged in a one-to-one correspondence with the charging compartments 210, and the indicator lights 220 are used to display the charging status of the battery or charger test device 100 in the corresponding charging compartment 210. The mains interface 230 is used to connect to the mains to power the charger 200.

[0092] When it is necessary to judge the charging performance of the charger 200, refer to Fig. 9 , the specific detection steps are:

[0093] Insert the tested charger test device 100 with normal function into any charging compartment 210 of the charger 200 to perform a charging test on the charger 200. At this time, the charger 200 has been connected to the power supply through the mains interface 230, and starts to charge the battery unit 2 of the charger test device 100 inserted into the charging compartment 210. After charging the battery unit 2, the display panel 3 of the charger test device 100 can display the charging current, charging voltage and the charging performance of the corresponding charger 200 in real time. When the charging performance of the charger 200 is good, PASS (pass) is displayed on the display panel 3; when the charging performance of the charger 200 is abnormal, an alarm is displayed.

[0094] The charger testing method according to the third aspect of the present invention adopts the charger testing system of the above embodiment, and the specific steps of the testing method are as follows:

[0095] S1. Place the charging test device 100 in the charging compartment 210 so that the charging probe 111 is electrically connected to the charging contact pin;

[0096] S2. The display panel 3 collects the charging parameters and status of the charging test device 100;

[0097] S3. The display panel 3 inputs the collected charging parameters and status into the MCU set in the display panel 3, and the MCU judges the charging performance of the charger by the charging parameters and status;

[0098] S4.MCU outputs the judgment result to the display board.

[0099] In some embodiments of the present invention, the charging parameters and status include charging voltage, charging current and indicator light status.

[0100] In some embodiments of the present invention, the MCU stores therein preset voltage intervals, preset current intervals, and indicator light states corresponding to different charging states of the charger testing device 100 .

[0101] refer to Figure 8 and Fig. 9 The specific working principle is as follows:

[0102] The battery cell 2 in the charger test device 100 has three states: over-discharge state, charging state and full-charge state. The MCU in the display panel 3 is preset with the current range, voltage range and state display of the indicator light 220 corresponding to the three states of the battery cell 2. The MCU stores therein the preset voltage range, preset current range and indicator light state corresponding to different charging states of the charger test device 100, which are specifically:

[0103] 1) When the battery cell 2 of the charger testing device 100 is in an over-discharge state, the charging voltage is in the range of 0.01V to 1V, the charging current is in the range of 700mA to 800mA, and the indicator light 220 flashes;

[0104] 2) When the battery unit 2 of the charger testing device 100 is in a charging state, the charging voltage is in the range of 24V to 31V, the charging current is in the range of 750mA to 1A, and the indicator light 220 flashes;

[0105] 3) When the battery unit 2 of the charger testing device 100 is in a fully charged state, the charging voltage is in the range of 32V to 33.6V, the charging current is in the range of 550mA to 1A, and the indicator light 220 remains on.

[0106] The charger testing device 100 is inserted into any charging compartment 210 of the charger 200, and the display panel 3 starts working:

[0107] The current acquisition unit 151 acquires the charging current and outputs it to the current output unit 152 of the MCU through the operational amplifier;

[0108] The voltage collection unit 153 collects the charging voltage and outputs it to the voltage output unit 154 of the MCU through the operational amplifier;

[0109] The state detection unit can be connected to the charger 200 through the charging probe 111 to collect the state of the indicator light 220. The state detection unit can also be connected to the MCU to output the state of the indicator light 220 to the MCU. The above step S2 is specifically as follows:

[0110] The MCU compares the sampled charging current, charging voltage, and indicator light 220 status data with the charging parameters and status preset in the MCU:

[0111] When the charging current value, charging voltage value, and indicator light 220 state of the battery unit 2 in any state conform to the current range, voltage range, and indicator light 220 state of the corresponding state, the charging performance of the charger 200 is good, and the MCU outputs the result to the result output LCD display unit, which displays the output PASS; if any of the charging current value or charging voltage value is not within the numerical range of the corresponding state or the indicator light 220 state is incorrect, the charger 200 has a fault, and the buzzer (not shown) outputs an alarm.

[0112] The charger testing device 100 of the present invention can automatically detect the charging performance of the charger 200, and the operation is simple and convenient, which can reduce the testing cost of the charger 200. Specifically, the charger testing device 100 of the present invention can be used to detect the charging process of the charger 200, the charging current display of the various states of the battery unit 2 (i.e., over-discharge state, charging state, and full-charge state), the charging voltage display, and the corresponding indicator light 220 state display, and the real-time monitoring of the charging process. Without waiting for several hours of charging, the charging performance of the charger 200 can be known, and the performance of the charger 200 can be judged very intuitively based on the charging current value, the charging voltage value, and the state of the indicator light 220.

[0113] According to the charger testing system of the embodiment of the present invention, the charging performance of the charger 200 can be judged according to the charging parameters of the battery cell 2 and the state of the battery cell 2. In addition, the charging parameters of the battery cell 2 are displayed on the display panel 3, so that the user can intuitively understand whether the relevant charging parameters of the battery cell 2 reach the expected values. The charger testing device 100 is simple to operate and has high reliability.

[0114] The charger testing method according to the embodiment of the present invention can quickly determine the performance of the charger 200, thereby improving detection efficiency and having high reliability.

[0115] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0116] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0117] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0118] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0119] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A charger testing device, characterized in that: include: A housing, wherein a charging interface is provided on the housing, and a receiving space is formed inside the housing to place a battery unit, wherein the charging interface is suitable for connecting a charger to be tested so that the charger can charge the battery unit; A display panel is electrically connected to the charging interface, a parameter detection unit is provided on the display panel, and the parameter detection unit is suitable for detecting the charging parameters of the battery cell. The display panel is configured to display the charging parameters of the battery cell and collect the status of the battery cell for display, wherein the charging parameters and the status of the battery cell are used to characterize the charging performance of the charger.

2. The charger testing device according to claim 1, characterized in that: The parameter detection unit includes at least one of a voltage acquisition unit and a current acquisition unit, wherein the voltage acquisition unit is suitable for acquiring a charging voltage of the battery unit, and the current acquisition unit is suitable for acquiring a charging current of the battery unit.

3. The charger testing device according to claim 2, characterized in that: The display panel is further configured to determine a state of the battery cell based on at least one of the charging voltage and the charging current.

4. The charger testing device according to claim 3, characterized in that: The display panel is also configured to determine the state of the battery cell according to different voltage intervals of the charging voltage and / or different current intervals of the charging current, wherein the state of the battery cell includes an over-discharge state, a charging state and a fully charged state.

5. The charger testing device according to claim 2, characterized in that: The display panel is also provided with a status detection unit, which is suitable for detecting the status of the battery cell to generate a first status detection signal. The display panel is also configured to determine whether the charger is abnormal based on at least one of the charging voltage, the charging current and the first status detection signal.

6. The charger testing device according to claim 2, characterized in that: A status detection unit is also provided on the display panel, and the status detection unit is suitable for detecting the status of the battery cell to generate a first status detection signal. The display panel is also configured to generate a second status detection signal of the battery cell based on at least one of the charging voltage and the charging current, and determine that the charger is abnormal when the first status detection signal does not match the second status detection signal.

7. The charger testing device according to claim 5 or 6, characterized in that: The display panel is also provided with an alarm unit, and the display panel is further configured to control the alarm unit to issue an alarm prompt when it is determined that the charger is abnormal.

8. The charger testing device according to any one of claims 1 to 6, characterized in that: Also includes: A control board is electrically connected to the battery unit and the display panel respectively, and the control board is configured to convert the voltage of the battery unit to obtain a power supply voltage, and the power supply voltage is used to power the display panel.

9. The charger testing device according to claim 8, characterized in that: The control board is connected to the charging interface and is also configured to control the charging of the battery unit according to the current and / or voltage output by the charger.

10. The charger testing device according to claim 1, characterized in that: The shell is provided with a display port communicating with the receiving space, and the display panel includes a display area, which is exposed from the display port.

11. The charger testing device according to claim 10, characterized in that: The shell includes a shell cover and a shell base which are fixed to each other, and the shell cover and the shell base enclose the accommodating space, the display port is opened on the shell base, and the charging interface is arranged on the shell cover or the shell base.

12. The charger testing device according to claim 10 or 11, characterized in that: The display port is opened at a first end of the shell, and a second end opposite to the first end of the shell is configured as an insertion end for inserting a charging compartment of a charger.

13. The charger testing device according to claim 2, characterized in that: The charging interface is provided with a charging probe, the charging probe includes a probe positive electrode and a probe negative electrode, the battery unit has a battery positive electrode and a battery negative electrode, the probe positive electrode is electrically connected to the battery positive electrode, and the probe negative electrode is electrically connected to the battery negative electrode; The voltage acquisition unit is connected in parallel to the probe positive electrode and the probe negative electrode, and the current acquisition unit is connected in series between the probe positive electrode and the positive electrode of the charging contact pin of the charger or between the probe negative electrode and the negative electrode of the charging contact pin of the charger.

14. The charger testing device according to claim 8, characterized in that: The display panel and the control panel are both installed and fixed in the housing, and the control panel is located between the display panel and the battery unit.

15. A charger testing system, characterized in that: include: The charger testing device according to any one of claims 1 to 14; and A charger, wherein the charger has an indicator light, a mains power interface and at least one charging compartment, wherein a charging contact pin for electrically connecting to the charging interface is provided in the charging compartment, and the indicator light is used to display the status of the corresponding battery unit.

16. A charger testing method, characterized in that: Using the charger testing system described in claim 15, the specific steps of the testing method are as follows: S1. Place the charging test device in the charging compartment so that the charging probe at the charging interface is electrically connected to the charging contact pin; S2. The display panel collects the charging parameters and status of the charging test device; S3. The display panel inputs the collected charging parameters and status into the MCU set in the display panel, and the MCU determines the charging performance of the charger by the charging parameters and status; S4. The MCU outputs the judgment result to the display panel.

17. The testing method according to claim 16, characterized in that: The charging parameters and status include charging voltage, charging current and indicator light status.

18. The testing method according to claim 17, characterized in that: The MCU stores therein preset voltage intervals, preset current intervals, and indicator light states corresponding to charging states different from those of the charger testing device.

19. The testing method according to claim 18, characterized in that: The MCU stores therein preset voltage intervals, preset current intervals and indicator light states corresponding to different charging states of the charger test device, specifically: 1) When the charger test device is in an over-discharge state, the preset voltage range is 0.01V to 1V, the preset current range is 700mA to 800mA, and the indicator light flashes; 2) When the charger test device is in charging state, the preset voltage range is 24V to 31V, the preset current range is 750mA to 1A, and the indicator light flashes; 3) When the charger test device is in a fully charged state, the preset voltage range is 32V to 33.6V, the preset current range is 550mA to 1A, and the indicator light remains on.

20. The testing method according to claim 19, characterized in that: The S2 step is specifically as follows: The MCU compares the sampled charging current, charging voltage, and indicator light status data with the charging parameters and status preset in the MCU: When the charging current value, charging voltage value and indicator light state of the charger test device in any state are in accordance with the current range, voltage range and indicator light state of the corresponding state, the charging performance of the charger is in good condition, and the MCU outputs to the display panel to display output PASS; When any one of the charging current value or the charging voltage value is not within the numerical range of the corresponding state or the indicator light state is incorrect, the charger is faulty, and the MCU outputs an alarm to the display panel.

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