Battery pack discharge test method and battery pack discharge test system on production line

Abstract

The invention discloses a battery pack discharge test method and a battery pack discharge test system on a production line. The battery pack discharge test method comprises the following steps: obtaining a to-be-tested battery pack on a production line, wherein the to-be-tested battery pack comprises a plurality of batteries connected in parallel; selecting one battery as a tested battery, and sending a first instruction to each battery except the tested battery to control the battery to enter a closed mode; and configuring the tested battery to discharge so as to test whether the tested battery outputs current or not, thereby saving the time for personnel on a production line to find batteries with similar capacities.

Description

Technical Field

[0001] The present invention relates to a discharge test method and a discharge test system, and in particular to a battery pack discharge test method and a battery pack discharge test system on a production line. Background Art

[0002] Existing portable computers (e.g., laptops, tablet computers, etc.) usually use a battery pack with more than two batteries connected in parallel, and these batteries are discharged in parallel. If the capacity difference of these batteries is too large, the battery with low capacity will not output current during the discharge test of the battery pack on the production line, resulting in a discharge test result of Fail.

[0003] The current method is to ask the personnel on the production line to find batteries with similar capacity and connect them in parallel to form a battery pack to overcome the above problem, but this method wastes time and leads to poor production efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a battery pack discharge test method and a battery pack discharge test system on a production line in view of the deficiencies in the prior art, which can allow a battery pack with batteries of any capacity connected in parallel to pass the discharge test on the production line, thereby saving the time of personnel on the production line to find batteries of similar capacity and improving production efficiency.

[0005] In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide a battery pack discharge test method on a production line. The battery pack discharge test method includes the following steps: obtaining a battery pack to be tested on a production line, the battery pack to be tested includes a plurality of batteries connected in parallel; and selecting one of the batteries as a tested battery, and executing a test procedure. The test procedure includes: sending a first instruction to each battery other than the tested battery to control the battery to enter a shutdown mode; and configuring the tested battery to discharge to test whether the tested battery outputs current.

[0006] Preferably, the test procedure further comprises: after testing whether the tested battery outputs current, sending a second instruction to each battery other than the tested battery to control the battery to exit the shutdown mode.

[0007] Preferably, the battery pack discharge test method further comprises: for each battery among the plurality of batteries that have not been selected, selecting as a tested battery and executing a test procedure.

[0008] Preferably, the first command and the second command are sent to each battery except the tested battery through the embedded controller.

[0009] Preferably, the battery entering the shutdown mode is configured to prohibit discharging and charging.

[0010] In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a battery pack discharge test system on a production line. The battery pack discharge test system includes a memory and a processing device. The memory is used to store a test program. The processing device is coupled to the memory and is configured to perform the following steps: obtain a battery pack to be tested on the production line, the battery pack to be tested includes a plurality of batteries connected in parallel; and select one of the batteries as a tested battery, and execute a test program. The test program includes: sending a first instruction to each battery other than the tested battery to control the battery to enter a shutdown mode; and configuring the tested battery to discharge to test whether the tested battery outputs current.

[0011] Preferably, the test procedure further comprises: after testing whether the tested battery outputs current, sending a second instruction to each battery other than the tested battery to control the battery to exit the shutdown mode.

[0012] Preferably, the processing device is further configured to select each battery among the plurality of batteries that has not been selected as a battery to be tested and execute the test procedure.

[0013] Preferably, the first command and the second command are sent to each battery except the tested battery through the embedded controller.

[0014] Preferably, the battery entering the shutdown mode is configured to prohibit discharging and charging.

[0015] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a functional block diagram of a battery pack discharge test system on a production line according to an embodiment of the present invention.

[0017] Figure 2 It is a flowchart of the steps of a battery pack discharge test method on a production line according to an embodiment of the present invention.

[0018] Figure 3 FIG. 1 is a schematic diagram of a processing device according to an embodiment of the present invention sending a first instruction or a second instruction to each battery other than the battery B_1 as a tested battery. DETAILED DESCRIPTION

[0019] The following is an explanation of the implementation methods of the "battery pack discharge test method and battery pack discharge test system on a production line" disclosed in the present invention through specific examples. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted in actual size. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention. In addition, the term "or" used in this article may include any one or more combinations of the associated listed items depending on the actual situation.

[0020] Please also read Figure 1 and Figure 2 .like Figure 1 As shown, the battery discharge test system 1 on the production line of this embodiment may include a memory 10 and a processing device 12. The processing device 12 is coupled to the memory 10 and is configured to execute the battery discharge test method of this embodiment.

[0021] like Figure 2 As shown, the battery pack discharge test method on the production line of this embodiment may include the following steps:

[0022] Step S110: obtaining a battery pack to be tested on a production line, wherein the battery pack to be tested includes a plurality of batteries connected in parallel;

[0023] Step S120: selecting one of the batteries as a tested battery;

[0024] Step S130: sending a first instruction to each battery other than the tested battery to control the battery to enter a shutdown mode;

[0025] Step S140: configuring the tested battery to discharge to test whether the tested battery outputs current;

[0026] Step S150: After testing whether the tested battery outputs current, a second instruction is sent to each battery other than the tested battery to control the battery to exit the shutdown mode.

[0027] It should be noted that the processing device 12 may be implemented by hardware (e.g., a central processing unit and a computer memory) in combination with software and / or firmware. However, the present invention does not limit the specific implementation of the processing device 12. In addition, for the convenience of the following description, steps S130 to S150 of the battery pack discharge test method may be defined as a test procedure.

[0028] The test program may be a computer program stored in the memory 10. That is, the memory 10 is used to store the test program. Figure 1 As shown, the battery pack 30 to be tested on the production line may include a plurality of batteries B_1 -B_n connected in parallel, where n is an integer greater than or equal to 2.

[0029] The processing device 12 may include an embedded controller 120. After obtaining the battery pack 30 to be tested on the production line, the processing device 12 may couple to the batteries B_1-B_n through the embedded controller 120 and send the first command S1 or the second command S2 to each battery except the tested battery.

[0030] In other words, the first command S1 and the second command S2 are sent to each battery except the tested battery through the embedded controller 120. However, the present invention does not limit the specific implementation of the embedded controller 120.

[0031] Specifically, in step S120, the processing device 12 may select the battery B_k as the battery under test, where k is an integer from 1 to n. Next, the processing device 12 may be configured to execute the test program stored in the memory 10, that is, to execute steps S130 to S150.

[0032] When selecting battery B_1 as the battery to be tested (i.e., k is 1), please also refer to Figure 3 .like Figure 3 As shown, the processing device 12 can send a first instruction S1 to the batteries B_2-B_n through the embedded controller 120 to control the batteries B_2-B_n to enter the shutdown mode, and configure the battery B_1 to discharge to test whether the battery B_1 outputs current. However, the present invention does not limit the specific implementation of the processing device 12 to configure the tested battery to discharge.

[0033] Furthermore, the processing device 12 may send instructions to the controller in each battery through the embedded controller 120 ( Figure 3 Not shown), and the battery that enters the shutdown mode is configured to prohibit discharge and charging. That is, the processing device 12 can control the batteries B_1 to B_n not to discharge in parallel, and when the tested battery is configured to discharge, the other batteries have no output current, so there will be no situation where the battery with low capacity has no output current.

[0034] After testing whether the battery B_1 outputs current, the processing device 12 can obtain the discharge test result of the battery B_1, and send a second instruction S2 to the batteries B_2 to B_n through the embedded controller 120 to control the batteries B_2 to B_n to exit the shutdown mode. In addition, the battery pack discharge test method on the production line of this embodiment can also include the following steps:

[0035] Step S160: Determine whether each battery has been selected as a tested battery; if so, the battery pack discharge test method proceeds to step S170; if not, the battery pack discharge test method returns to step S120;

[0036] Step S170: obtaining the discharge test result of the battery pack to be tested.

[0037] For example, each battery may correspond to a flag, which is used to indicate whether the battery has been selected as a tested battery. When selecting battery B_k as a tested battery, the processing device 12 may set the flag corresponding to battery B_k to 1 to indicate that battery B_k has been selected as a tested battery. Therefore, in step S160, the processing device 12 may determine whether each battery has been selected as a tested battery by determining whether the flag corresponding to each battery is 1.

[0038] In the battery discharge test method returning to step S120, the processing device 12 may select a battery that has not been selected as a tested battery. That is, the battery discharge test method of this embodiment may also include selecting each of the multiple batteries that have not been selected as a tested battery and executing a test procedure.

[0039] Taking the above content as an example, the processing device 12 can also be configured to select each of the batteries B_2 to B_n that have not been selected as a tested battery and execute a test procedure. Similarly, when the battery B_2 is selected as the tested battery, the processing device 12 can send a first instruction S1 to the batteries B_1, B_3 to B_n through the embedded controller 120 to control the batteries B_1, B_3 to B_n to enter the shutdown mode, and configure the battery B_2 to discharge to test whether the battery B_2 outputs current.

[0040] After testing whether the battery B_2 outputs current, the processing device 12 can obtain the discharge test result of the battery B_2, and send a second instruction S2 to the batteries B_1, B_3 to B_n through the embedded controller 120 to control the batteries B_1, B_3 to B_n to exit the shutdown mode. Since the relevant details are as described above, they will not be repeated here.

[0041] On the other hand, in step S170, the processing device 12 may obtain the discharge test result of the battery group 30 to be tested according to the discharge test results of the batteries B_1 to B_n. For example, in response to the discharge test result of each battery being an output current, the processing device 12 may determine that the discharge test result of the battery group 30 to be tested is successful, and in response to the discharge test result of one of the batteries being an output current, the processing device 12 may determine that the discharge test result of the battery group 30 to be tested is a failure.

[0042] It should be noted that since the processing device 12 can obtain the discharge test result of each battery, after determining that the discharge test result of the battery pack 30 to be tested is a failure, the processing device 12 can also notify the personnel on the production line which batteries are faulty based on the discharge test result of each battery, so as to improve debugging efficiency and product yield.

[0043] In summary, one of the beneficial effects of the present invention is that the battery pack discharge test method and battery pack discharge test system on the production line provided by the present invention can save the time of personnel on the production line to find batteries with similar capacity and improve production efficiency through the technical means of "selecting one of the batteries as the tested battery", "sending a first instruction to each battery other than the tested battery to control the battery to enter the shutdown mode" and "configuring the tested battery to discharge to test whether the tested battery outputs current".

[0044] The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the protection scope of the claims of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention description and drawings are included in the protection scope of the claims of the present invention.

Claims

1. A battery pack discharge test method on a production line, characterized in that: The battery pack discharge test method comprises: Obtaining a battery pack to be tested on the production line, wherein the battery pack to be tested includes a plurality of batteries connected in parallel; and Select one of the batteries as a tested battery and execute a test procedure, the test procedure comprising: sending a first command to each of the batteries except the tested battery to control the battery to enter a shutdown mode; and The tested battery is configured to discharge to test whether the tested battery outputs current.

2. The battery pack discharge test method according to claim 1, characterized in that: The testing procedure also includes: After testing whether the tested battery outputs current, a second instruction is sent to each of the batteries except the tested battery to control the battery to exit the shutdown mode.

3. The battery pack discharge test method according to claim 2, characterized in that: The battery pack discharge test method further includes: For each of the plurality of batteries that have not been selected, the battery is selected as the tested battery and the test procedure is executed.

4. The battery pack discharge test method according to claim 2, characterized in that: The first command and the second command are sent to each of the batteries except the tested battery through an embedded controller.

5. The battery pack discharge test method according to claim 2, characterized in that: The battery entering the shutdown mode is configured to inhibit discharging and charging.

6. A battery pack discharge test system on a production line, characterized in that: The battery pack discharge test system comprises: a memory for storing a test program; and a processing device, coupled to the memory, the processing device being configured to: Obtaining a battery pack to be tested on the production line, wherein the battery pack to be tested includes a plurality of batteries connected in parallel; and Select one of the batteries as a tested battery and execute the test procedure, which includes: sending a first command to each of the batteries except the tested battery to control the battery to enter a shutdown mode; and The tested battery is configured to discharge to test whether the tested battery outputs current.

7. The battery pack discharge test system according to claim 6, characterized in that: The testing procedure also includes: After testing whether the tested battery outputs current, a second instruction is sent to each of the batteries except the tested battery to control the battery to exit the shutdown mode.

8. The battery pack discharge test system according to claim 7, characterized in that: The processing device is further configured to select each of the plurality of the batteries that have not been selected as the battery under test and execute the test procedure.

9. The battery pack discharge test system according to claim 7, characterized in that: The first command and the second command are sent to each of the batteries except the tested battery through an embedded controller.

10. The battery pack discharge test system according to claim 7, characterized in that: The battery entering the shutdown mode is configured to inhibit discharging and charging.

Images