Battery testing device and battery testing system
By designing a battery test device including a control module, a charge and discharge module, a temperature and humidity adjustment component and a relay, the problem of low power recycling rate in battery discharge test is solved, and the recycling and efficient recycling of electricity is achieved.
Patent Information
- Application Number
- CN202420827235.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-04-19
AI Technical Summary
During the discharge test of existing batteries, the electrical energy during the discharge stage was not fully recycled, resulting in a low recycling rate.
A battery testing device is designed, including a control module, a charge and discharge module, a temperature and humidity adjustment component and a relay. By controlling the relay closure, the electrical energy output by the battery during the discharge test is used to power the temperature and humidity adjustment component, thereby forming a cycle and improving the recycling rate of the electricity.
By recycling the electric energy output by the battery during the discharge test, the recycling rate of the battery discharge test electric energy is significantly improved and the dependence on external power supply is reduced.
Smart Images
Figure CN222926841U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of battery charging and discharging, and particularly to a test device for a battery and a test system for a battery. Background Art
[0002] Generally, we need to understand various performance parameters and safety of a battery during discharge testing and charging testing. When an existing battery is subjected to a discharge test, the electrical energy in the discharge stage of the battery is output to a load (usually a resistor) so that the load consumes the electrical energy output in the discharge stage of the battery. For example, the resistor is converted into heat energy and released into the surrounding environment through an auxiliary heat sink or a fan. Summary of the Utility Model
[0003] In view of the above problems, this application provides a test device for a battery and a test system for a battery to improve the recycling rate of electrical energy during the discharge test of the battery.
[0004] On the one hand, this application provides a test device for a battery, including:
[0005] A control module, configured to send a discharge test instruction, and the discharge test instruction indicates to perform a discharge test on the battery.
[0006] A charge and discharge module, configured to control the battery to discharge according to the discharge test instruction.
[0007] A temperature and humidity adjustment component, configured to adjust the temperature and humidity of the battery during the discharge test, wherein the battery is placed in the temperature and humidity adjustment component; and
[0008] A first relay, located between the charge and discharge module and the temperature and humidity adjustment component.
[0009] Wherein, the control module is further configured to control the first relay to close, so that the electrical energy output by the battery during the discharge test powers the temperature and humidity adjustment component.
[0010] In an embodiment of this application, the control module controls the first relay to close, so that the battery, the charge and discharge module, the first relay, and the temperature and humidity adjustment component form a discharge test loop. At this time, the electrical energy output by the battery during the discharge test can power the temperature and humidity adjustment component. Furthermore, the temperature and humidity adjustment component uses the electrical energy output by the battery during the discharge test to adjust the temperature and humidity of the battery during the discharge test, so that the electrical energy output by the battery during the discharge test can form a cycle among the battery, the charge and discharge module, and the temperature and humidity adjustment component, improving the recycling rate of the electrical energy output by the battery during the discharge test.
[0011] In some embodiments, the test device for a battery further includes:
[0012] An energy storage module, and the energy storage module is respectively connected to the charge and discharge module and the first relay.
[0013] Energy storage module, used to store the electrical energy output by the battery during the discharge test.
[0014] Control module, used to control the first relay to close when the energy storage module stores electrical energy, so that the electrical energy stored in the energy storage module powers the temperature and humidity adjustment component.
[0015] In the embodiment of the present application, when the energy storage module stores electrical energy, the control module controls the first relay to close, so that the electrical energy stored in the energy storage module powers the temperature and humidity adjustment component. By storing the electrical energy output by the discharge test of the battery in the energy storage module and powering the temperature and humidity adjustment component when storing electrical energy, the recycling rate of the electrical energy output by the discharge test of the battery can be further improved.
[0016] In some embodiments, the control module is communicatively connected to the energy storage module, and can obtain whether the energy storage module stores electrical energy, providing an accurate basis for subsequent power supply to the temperature and humidity adjustment component.
[0017] In some embodiments, the battery testing device further includes:
[0018] A second relay; the second relay is located between the temperature and humidity adjustment component and the power grid.
[0019] The control module is further used to control the second relay to close when the energy storage module does not store electrical energy, so that the power grid powers the temperature and humidity adjustment component.
[0020] In the embodiment of the present application, when the energy storage module does not store electrical energy, the control module can also control the second relay to close, so that the power grid powers the temperature and humidity adjustment component, which can expand the power supply method of the temperature and humidity adjustment component and ensure the discharge test and charging test of the battery.
[0021] In some embodiments, the battery testing device further includes:
[0022] Battery temperature monitoring module, the battery temperature monitoring module is respectively connected to the first relay, the second relay and the battery.
[0023] The control module is further used to control the first relay to close when the energy storage module stores electrical energy, so that the electrical energy stored in the energy storage module powers the battery temperature monitoring module.
[0024] The control module is further used to control the second relay to close when the energy storage module does not store electrical energy, so that the power grid powers the battery temperature monitoring module.
[0025] The battery temperature monitoring module is used to monitor the battery temperature of the battery during the discharge test and the charging test.
[0026] In the embodiments of the present application, when the energy storage module stores electric energy, the control module can also control the first relay to close, so that the energy storage module powers the battery temperature monitoring module. Then, the battery temperature monitoring module can monitor the battery temperature during the discharge test and the charging test of the battery, improving the safety of the battery during the charge and discharge tests.
[0027] In some embodiments, the battery temperature monitoring module includes a temperature measurement patch, and the temperature measurement patch can accurately monitor the battery temperature.
[0028] In some embodiments, the battery temperature monitoring module is connected to the battery and includes: the temperature measurement patch is attached to the battery. Attaching the temperature measurement patch to the battery can improve the accuracy and convenience of battery temperature monitoring.
[0029] In some embodiments, the power grid is connected to the charge and discharge module.
[0030] The power grid is used to charge the battery through the charge and discharge module.
[0031] The control module is further configured to send a charging test instruction, and the charging test instruction indicates to perform a charging test on the battery.
[0032] The charge and discharge module is configured to control the power grid to charge the battery according to the charging test instruction.
[0033] The control module is further configured to control the first relay to close, so that the electric energy stored in the energy storage module powers the temperature and humidity adjustment component, or control the second relay to close, so that the power grid powers the temperature and humidity adjustment component.
[0034] The temperature and humidity adjustment component is used to adjust the temperature and humidity of the battery during the charging test.
[0035] In the embodiments of the present application, the power grid, the charge and discharge module, and the battery form a charging test loop. During the charging test of the battery, the control module can control the first relay to close, so that the electric energy stored in the energy storage module (the electric energy output by the battery during the discharge test) powers the temperature and humidity adjustment component. Then, the temperature and humidity adjustment component can use the electric energy output by the battery discharge test to adjust the temperature and humidity of the battery during the charging test, further improving the recycling rate of the electric energy output by the battery discharge test.
[0036] In some embodiments, the control module is communicatively connected to the charge and discharge module and can send a discharge test instruction to the charge and discharge module to enable the charge and discharge module to control the discharge of the battery.
[0037] In some embodiments, the control module can also send a charging test instruction to the charge and discharge module to enable the charge and discharge module to control the charging of the battery.
[0038] In some embodiments, the temperature and humidity adjustment component includes a temperature and humidity chamber.
[0039] In some embodiments, the control module is communicatively connected to the energy storage module. The control module is configured to obtain the power storage condition of the energy storage module, providing an accurate basis for the power supply of the temperature and humidity regulation component.
[0040] In some embodiments, the first relay is respectively connected to the charge and discharge module and the temperature and humidity regulation component.
[0041] In some embodiments, the second relay is respectively connected to the temperature and humidity regulation component and the power grid.
[0042] In some embodiments, the control module is communicatively connected to the first relay, and the control module can drive the first relay to close.
[0043] In some embodiments, the control module is communicatively connected to the second relay, and the control module can drive the second relay to close.
[0044] In a second aspect, the present application provides a battery test system, including:
[0045] a host computer, and one or more battery test devices in the above embodiments;
[0046] The host computer is connected to one or more battery test devices.
[0047] In the embodiments of the present application, by connecting the host computer to one or more battery test devices, a single battery can be tested, and multiple batteries can also be batch-tested, improving the efficiency of the charge and discharge test of the batteries.
[0048] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically described below. BRIEF DESCRIPTION OF THE DRAWINGS
[0049] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:
[0050] Figure 1 is a schematic structural diagram of a battery test device in some embodiments of the present application;
[0051] Figure 2 is a schematic structural diagram of a battery test device in some embodiments of the present application;
[0052] Figure 3Schematic structural diagram of the test system for the battery in some embodiments of the present application;
[0053] The reference numerals in the specific embodiments are as follows:
[0054] Battery 1, control module 2, charge and discharge module 3, temperature and humidity adjustment component 4, first relay 5, energy storage module 6, power grid 7, second relay 8, battery temperature monitoring module 9, battery test device 10, host computer 20, and battery test system 100. Specific embodiments
[0055] Hereinafter, embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and thus are only examples and cannot be used to limit the protection scope of the present application.
[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.
[0057] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality of" means two or more, unless otherwise specifically defined.
[0058] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0059] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.
[0060] In the description of the embodiments of the present application, the term "plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).
[0061] In the description of the embodiments of the present application, unless otherwise clearly defined and limited, technical terms such as "installation", "connection", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.
[0062] Currently, when the related technology conducts a discharge test on a battery, it usually outputs the electrical energy in the battery discharge stage to a load (for example, a resistor) so that the load consumes the electrical energy output in the battery discharge stage. For example, the resistor is converted into heat energy and released to the surrounding environment through an auxiliary heat sink or a fan. The above method of converting the electrical energy in the battery discharge stage into heat energy and releasing it to the surrounding environment does not fully utilize the electrical energy in the battery discharge test, resulting in a low recovery rate of the battery discharge electrical energy.
[0063] To solve the problem of the low recovery rate of the battery discharge electrical energy, as Figures 1 to 2 shown, an embodiment of the present application discloses a test device 10 for a battery, including a control module 2, a charge and discharge module 3, a first relay 5, and a temperature and humidity adjustment component 4. By controlling the first relay 5 to close through the control module 2, a discharge test loop is formed by the battery 1, the charge and discharge module 3, the first relay 5, and the temperature and humidity adjustment component 4. At this time, the electrical energy output by the battery 1 in the discharge test can supply power to the temperature and humidity adjustment component 4, and then the temperature and humidity adjustment component 4 uses the electrical energy output by the battery 1 in the discharge test to adjust the temperature and humidity of the battery 1 during the discharge test. This solution enables the electrical energy output by the battery 1 in the discharge test to circulate among the battery 1, the charge and discharge module 3, and the temperature and humidity adjustment component 4, improving the recovery rate of the electrical energy output by the battery 1 in the discharge test.
[0064] As Figure 1 shown, an embodiment of the present application discloses a test device 10 for a battery. The test device 10 for a battery refers to a device that can perform a discharge test and / or a charge test on the battery 1. In some embodiments, the test device 10 for a battery is also called a charge and discharge machine. The charge and discharge machine can be widely used for various battery formation, plate formation, and rapid pulse formation charge and discharge, and can classify and screen the capacities of various batteries and perform grouping through the detection of battery voltage, current, and temperature.
[0065] A battery 1 refers to a part of a cup, trough, or other container or composite container that contains an electrolyte solution and metal electrodes to generate an electric current, and is a device that can convert chemical energy into electrical energy, with a positive electrode and a negative electrode. In the embodiments of the present application, the battery 1 may include a single battery cell or a battery pack formed by connecting multiple battery cells in series and / or in parallel. A battery cell is the basic unit that realizes the mutual conversion of chemical energy and electrical energy, and is composed of a positive electrode, a negative electrode, a separator, an electrolyte, a battery case, a battery cover, and electrode terminals, etc. The battery testing device 10 includes:
[0066] A control module 2, configured to send a discharge test instruction, and the discharge test instruction indicates to perform a discharge test on the battery 1.
[0067] If it is also necessary to perform a charge test on the battery 1, the control module 2 is further configured to send a charge test instruction to the charge and discharge module 3. In some embodiments, the control module 2 may be the central processing unit (CPU) of the testing device 10, serving as the main body for operations such as information processing, program running, arithmetic, and control.
[0068] The discharge test instruction is an instruction that indicates to perform a discharge test on the battery 1. The discharge test refers to the process of testing the battery parameters of the battery 1 during the discharge stage. The battery parameters may include, but are not limited to, battery capacity, battery voltage, battery internal resistance, the discharge curve of the battery, and the cycle life of the battery, etc.
[0069] The battery testing device 10 further includes a charge and discharge module 3, and the charge and discharge module 3 is configured to control the battery 1 to discharge according to the discharge test instruction. Discharging refers to the process in which the battery 1 converts chemical energy into electrical energy.
[0070] The charge and discharge module 3 is a module that controls the battery 1 to discharge according to the discharge test instruction or controls the battery 1 to charge according to the charge test instruction. In some embodiments, the charge and discharge module 3 may be any module or device in the related art that can implement the function of controlling the battery 1 to discharge or charge, such as a charge and discharge circuit or a charge and discharge chip for controlling the battery charging and discharging process. For example, a dedicated battery charge and discharge chip of model YB506AB. Additionally, the charge and discharge module 3 may include a separately provided charging circuit and a discharging circuit, or may include a charge and discharge circuit formed by integrating the charging circuit and the discharging circuit. The embodiments of the present application do not make special limitations on this.
[0071] The battery testing device 10 further includes a temperature and humidity adjustment component 4, and the temperature and humidity adjustment component 4 is configured to adjust the temperature and humidity for the battery 1 to perform the discharge test, wherein the battery 1 is placed in the temperature and humidity adjustment component 4.
[0072] The temperature and humidity adjustment component 4 is a component used to adjust temperature and humidity. A component refers to a set of elements assembled together in an electronic or mechanical device to form a functional unit. In the embodiments of the present application, the temperature and humidity adjustment component 4 is a temperature and humidity adjustment functional unit formed by assembling elements, and is specifically used to adjust the temperature and humidity during the discharge test or charge test of the battery 1. The temperature and humidity during the discharge test refer to the temperature and humidity of the battery 1 within the temperature and humidity adjustment component 4 during the discharge test. Adjustment means to adjust and change within a certain numerical or degree range to meet the requirements. Adjusting the temperature and humidity of the battery 1 means adjusting the temperature and humidity of the environment where the battery 1 is located. For example, the battery 1 is placed in the accommodation cavity of the temperature and humidity adjustment component 4, and the temperature and humidity within the accommodation cavity are changed to adjust the temperature and humidity of the environment where the battery 1 is located.
[0073] In some embodiments, the temperature and humidity adjustment component 4 includes a temperature and humidity chamber. A temperature and humidity chamber, also known as an environmental test chamber or a constant temperature and humidity chamber, is a device used to simulate tests and measurements under constant temperature and humidity conditions, and usually consists of a sealed test chamber, a heating and cooling system, a humidifying and dehumidifying system, and a temperature and humidity control system. The temperature and humidity chamber can provide precise temperature and humidity control, enabling performance tests of various materials, products, or devices under different environmental conditions.
[0074] Please continue to refer to Figure 1 , the test device 10 of the battery further includes:
[0075] The first relay 5 is located between the charge and discharge module 3 and the temperature and humidity adjustment component 4. In some embodiments, as Figure 1 shown, the first relay 5 is respectively connected to the charge and discharge module 3 and the temperature and humidity adjustment component 4. Specifically, the first relay 5 is respectively connected to the charge and discharge module 3 and the temperature and humidity adjustment component 4 through wires.
[0076] A relay (English name: relay) is an electrical control device. It is an electrical appliance that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change of the input quantity (excitation quantity) reaches the specified requirement. It has an interaction relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit), and is a switching element with isolation function. In the embodiments of the present application, the control module 2 (control system or input circuit) is further used to control the first relay 5 to close, so that the charge and discharge module 3 is conducted with the temperature and humidity adjustment component 4 (controlled system or output circuit) through the closing of the first relay 5, and the electrical energy output by the battery 1 during the discharge test powers the temperature and humidity adjustment component 4. A relay contains two contacts, and closing means that the two contacts of the relay are in a contact state.
[0077] In some embodiments, as Figure 1As shown, the battery 1 is connected to the charge and discharge module 3. Specifically, the battery 1 and the charge and discharge module 3 are connected by an electric wire (conductor).
[0078] In some embodiments, as Figure 1 shown, the control module 2 is communicatively connected to the charge and discharge module 3. Specifically, the control module 2 can be connected to the charge and discharge module 3 through a Controller Area Network (CAN) communication bus. The control module 2 can send a discharge test instruction to the charge and discharge module 3 through the CAN communication bus, so that the charge and discharge module 3 controls the discharge of the battery 1 according to the discharge test instruction.
[0079] In some embodiments, as Figure 1 shown, the control module 2 is communicatively connected to the first relay 5, and the control module 2 can drive the first relay 5 to close through a drive instruction. The drive instruction refers to an instruction that can drive the first relay 5 to close, such as a pulse width modulation wave. In some embodiments, the control module 2 can also be electrically connected to the first relay 5 through a drive unit, and the control module 2 drives the first relay 5 to close through the drive unit. The drive unit refers to a functional module or device that can drive the first relay 5 to close. For example, a power amplification circuit of a pulse width modulation wave connected between the output end of the control module 2 and the control end of the first relay 5, etc. The first relay 5 and the control module 2 can be separately arranged, or the first relay 5 can be integrally arranged in the control module 2 as a part of the control module 2.
[0080] In the embodiment of the present application, the control module 2 closes the first relay 5, so that the battery 1, the charge and discharge module 3, the first relay 5 and the temperature and humidity adjustment component 4 form a discharge test loop. At this time, the electric energy output by the battery 1 during the discharge test can supply power to the temperature and humidity adjustment component 4, and then the temperature and humidity adjustment component 4 uses the electric energy output by the battery 1 during the discharge test to adjust the temperature and humidity of the battery 1 during the discharge test. This enables the electric energy output by the battery 1 during the discharge test to form a cycle among the battery 1, the charge and discharge module 3 and the temperature and humidity adjustment component 4, improving the recovery and utilization rate of the electric energy output by the battery 1 during the discharge test.
[0081] In some embodiments, based on the module structure shown in Figure 1 as shown in Figure 2 the test device 10 of the battery further includes: an energy storage module 6.
[0082] Energy storage module 6 is used to store the electric energy output by battery 1 during the discharge test. Energy storage refers to the process of storing energy through a medium or device and releasing it when needed. In the embodiments of the present application, the energy storage module 6 refers to a module that stores the electric energy output by battery 1 during the discharge test. For example, the energy storage module 6 may include energy storage devices such as energy storage batteries 1 and energy storage cabinets. Electric energy refers to the ability to do work in various forms using electricity.
[0083] Control module 2 is used to control the first relay 5 to close when the energy storage module 6 stores electric energy, so that the electric energy stored in the energy storage module 6 powers the temperature and humidity adjustment component 4.
[0084] As Figure 2 shown, the energy storage module 6 is respectively connected to the charge and discharge module 3 and the first relay 5. In some embodiments, the energy storage module 6 is respectively connected to the charge and discharge module 3 and the first relay 5 through wires. When the energy storage module 6 stores electric energy, the control module 2 can control the first relay 5 to close. At this time, the battery 1, the charge and discharge module 3, the energy storage module 6, the first relay 5, and the temperature and humidity adjustment component 4 form a discharge circuit, so that the electric energy stored in the energy storage module 6 powers the temperature and humidity adjustment component 4.
[0085] In some embodiments, as Figure 2 shown, the control module 2 is communicatively connected to the energy storage module 6. Specifically, the control module 2 is connected to the energy storage module 6 through the CAN communication bus. The control module 2 obtains the situation of the electric energy stored in the energy storage module 6 through the CAN communication bus, and controls the first relay 5 to close when the energy storage module 6 stores electric energy, so that the electric energy stored in the energy storage module 6 powers the temperature and humidity adjustment component 4, providing an accurate basis for powering the temperature and humidity adjustment component 4.
[0086] In the embodiments of the present application, when the energy storage module 6 stores electric energy, the control module 2 controls the first relay 5 to close. This enables the electric energy stored in the energy storage module 6 to power the temperature and humidity adjustment component 4. By storing the electric energy output from the discharge test of battery 1 in the energy storage module 6 and powering the temperature and humidity adjustment component 4 when storing energy, the recovery and utilization rate of the electric energy output from the discharge test of battery 1 can be further improved.
[0087] In some embodiments, as Figure 2 shown, the battery test device 10 further includes:
[0088] A second relay 8; the second relay 8 is located between the temperature and humidity adjustment component 4 and the power grid 7. In some embodiments, as Figure 2 shown, the second relay 8 is respectively connected to the temperature and humidity adjustment component 4 and the power grid 7. Specifically, the second relay 8 is respectively connected to the temperature and humidity adjustment component 4 and the power grid 7 through wires.
[0089] The power grid 7 refers to the overall entity composed of substations of various voltages and transmission and distribution lines in the power system, including units such as power transformation, power transmission, and power distribution.
[0090] At this time, the control module 2 is further configured to control the second relay 8 to close when the energy storage module 6 does not store electrical energy, so that the power grid 7 supplies power to the temperature and humidity adjustment component 4.
[0091] In some embodiments, as Figure 2 shown, the control module 2 is communicatively connected to the second relay 8, and the control module 2 can drive the second relay 8 to close through a drive instruction. A drive instruction refers to an instruction that can drive the second relay 8 to close, for example, a pulse width modulation wave. In some embodiments, the control module 2 can also be electrically connected to the second relay 8 through a drive unit, and the control module 2 drives the first relay 5 to close through the drive unit. A drive unit refers to a functional module or device that can drive the second relay 8 to close, for example, a power amplification circuit connected between the output end of the control module 2 and the control end of the second relay 8. The second relay 8 can be separately provided from the control module 2, or the second relay 8 can be integrally provided in the control module 2 as a part of the control module 2.
[0092] In the embodiments of the present application, when the energy storage module 6 does not store electrical energy, the control module 2 can also control the second relay 8 to close, so that the power grid 7 supplies power to the temperature and humidity adjustment component 4, which can expand the power supply mode of the temperature and humidity adjustment component 4 and ensure the discharge test and charging test of the battery 1.
[0093] In some embodiments, as Figure 2 shown, the battery testing device 10 further includes:
[0094] A battery temperature monitoring module 9. The battery temperature monitoring module 9 is respectively connected to the first relay 5, the second relay 8, and the battery 1.
[0095] Correspondingly, the control module 2 is further configured to control the first relay 5 to close when the energy storage module 6 stores electrical energy, so that the electrical energy stored in the energy storage module 6 supplies power to the battery temperature monitoring module 9.
[0096] In addition, the control module 2 is further configured to control the second relay 8 to close when the energy storage module 6 does not store electrical energy, so that the power grid 7 supplies power to the battery temperature monitoring module 9.
[0097] The battery temperature monitoring module 9 is used to monitor the battery temperature of the battery 1 during the discharge test and the charging test.
[0098] In some embodiments, the battery temperature monitoring module 9 is connected to the first relay 5 and the second relay 8, specifically including: the battery temperature monitoring module 9 is respectively connected to the first relay 5 and the second relay 8 through wires.
[0099] In some embodiments, the battery temperature monitoring module 9 includes a temperature measurement patch. Using the temperature measurement patch can accurately monitor the battery temperature. The battery temperature refers to the temperature of the battery 1 itself during the charging test and the discharging test of the battery 1.
[0100] In some embodiments, the battery temperature monitoring module 9 is connected to the battery 1 (not shown in the figure), specifically including: the temperature measurement patch is attached to the battery 1. Attaching the temperature measurement patch to the battery 1 can improve the accuracy and convenience of battery temperature monitoring.
[0101] In the embodiments of the present application, when the energy storage module 6 stores electrical energy, the control module 2 can also control the first relay 5 to close, so that the energy storage module 6 supplies power to the battery temperature monitoring module 9. Furthermore, the battery temperature monitoring module 9 can monitor the battery temperature of the battery 1 during the discharging test and the charging test, improving the safety of the battery 1 during the charge and discharge tests.
[0102] In some embodiments, as Figure 2 shown, the power grid 7 is connected to the charge and discharge module 3.
[0103] The power grid 7 is used to charge the battery 1 through the charge and discharge module 3.
[0104] The control module 2 is further configured to send a charging test instruction, and the charging test instruction indicates to perform a charging test on the battery 1. The charging test instruction is an instruction indicating to perform a charging test on the battery 1. The charging test refers to the process of testing the battery parameters of the battery 1 during the charging stage. The battery parameters may include but are not limited to battery capacity, battery voltage, battery internal resistance, charging curve of the battery, charging speed of the battery, and cycle life of the battery, etc.
[0105] The charge and discharge module 3 is configured to control the power grid 7 to charge the battery 1 according to the charging test instruction. Charging refers to the process in which the battery 1 receives electrical energy from an external circuit (the power grid 7 in the embodiments of the present application) and converts it into chemical energy of the battery 1.
[0106] The control module 2 is further configured to control the first relay 5 to close, so that the electrical energy stored in the energy storage module 6 supplies power to the temperature and humidity adjustment component 4, or control the second relay 8 to close, so that the power grid 7 supplies power to the temperature and humidity adjustment component 4.
[0107] The temperature and humidity adjustment component 4 is used to adjust the temperature and humidity for the battery 1 to perform the charging test.
[0108] In some embodiments, the power grid 7 is connected to the charge and discharge module 3, including: the power grid 7 is connected to the charge and discharge module 3 through an electric wire.
[0109] In some embodiments, as Figure 2 shown, the battery test device 10 is respectively connected to the battery 1 and the power grid 7. Specifically, the charge and discharge module 3 in the battery test device 10 is connected to the battery 1 through an electric wire, and the charge and discharge module 3 and the second relay 8 in the battery test device 10 are respectively connected to the power grid 7 through an electric wire.
[0110] In the embodiments of the present application, the power grid 7, the charge and discharge module 3, and the battery 1 form a charging test loop. During the charging test of the battery 1, the control module 2 can control the first relay 5 to close, so that the electric energy stored in the energy storage module 6 (the electric energy output by the battery 1 during the discharge test) powers the temperature and humidity adjustment component 4. Furthermore, the temperature and humidity adjustment component 4 can use the electric energy output by the battery 1 during the discharge test to adjust the temperature and humidity of the battery 1 during the charging test, further improving the recovery and utilization rate of the electric energy output by the battery 1 during the discharge test. As Figure 3 shown, the embodiments of the present application also disclose a battery test system 100, including:
[0111] a host computer 20, and one or more battery test devices 10 in the above embodiments.
[0112] The host computer 20 is connected to one or more battery test devices 10.
[0113] The host computer 20 refers to a computer (system) that can directly issue control commands, which is widely used in automated control systems. Generally, an industrial control computer, a workstation, and a touch screen are used as the host computer. An industrial control computer generally refers to an industrial control computer, which is generally modified on the basis of a personal computer to make the division of its system structure or functional modules more suitable for the requirements of industrial process control. A workstation is a high-end general-purpose microcomputer, which is for single-user use and provides more powerful performance than a personal computer, especially in terms of graphics processing ability and task parallelism. It is usually equipped with a high-resolution large-screen or multi-screen display, a large-capacity internal memory and external memory, and a computer with extremely strong information and high-performance graphics and image processing functions. In addition, a terminal connected to a server can also be called a workstation.
[0114] In some embodiments, the battery test device 10 is respectively connected to the battery 1 and the power grid 7 ( Figure 3 not shown, please refer to Figure 2 ).
[0115] In some embodiments, the host computer 20 is connected to the test devices 10 of one or more batteries through a CAN communication bus, Ethernet, RS232 communication protocol, or RS483 communication protocol. Specifically, the host computer 20 is connected to the control module 2 in the test device 10 of the battery through a CAN communication bus, Ethernet, RS232 communication protocol, or RS483 communication protocol. The host computer 20 sends a discharge test instruction or a charge test instruction to the test device 10 (control module 2) of the battery through the CAN communication bus, so that the test device 10 of the battery performs a discharge test or a charge test on the battery 1.
[0116] In the embodiments of the present application, by connecting the host computer 20 to the test devices 10 of one or more batteries, it is possible to test a single battery 1 or perform batch testing on multiple batteries 1, improving the efficiency of the charge and discharge testing of the battery 1.
[0117] The following combines Figures 1 to 3 , and specifically describes the discharge test, charge test, temperature and humidity adjustment, and temperature monitoring of the battery 1:
[0118] Place the battery 1 in a greenhouse box, and attach the temperature measurement patch to the battery 1. The host computer 20 sends a charge test instruction for charging the battery 1 to the charge and discharge module 3 through the control module 2 in the test device 10 of the battery, and the charge and discharge module 3 controls the charging of the battery 1 according to the charge test instruction. Alternatively, the host computer 20 sends a discharge test instruction for discharging the battery 1 to the charge and discharge module 3 through the control module 2 in the test device 10 of the battery, and the charge and discharge module 3 controls the discharge of the battery 1 according to the discharge test instruction.
[0119] When the energy storage module 6 stores energy, the control module 2 controls the first relay 5 to close, so that the energy storage module 6 supplies power to the temperature and humidity adjustment component 4 and / or the battery temperature monitoring module 9. Then, the temperature and humidity adjustment component 4 uses the electric energy stored in the energy storage module 6 to adjust the temperature and humidity of the battery 1 during the discharge test or charge test, and the battery temperature monitoring module 9 uses the electric energy stored in the energy storage module 6 to monitor the battery temperature of the battery 1 during the discharge test or charge test.
[0120] When the energy storage module 6 does not store energy, the control module 2 controls the second relay 8 to close, so that the power grid 7 supplies power to the temperature and humidity adjustment component 4 and / or the battery temperature monitoring module 9. Then, the temperature and humidity adjustment component 4 uses the electric energy of the power grid 7 to adjust the temperature and humidity of the battery 1 during the discharge test or charge test, and the battery temperature monitoring module 9 uses the electric energy of the power grid 7 to monitor the battery temperature of the battery 1 during the discharge test or charge test. For example, keep the temperature and humidity of the battery 1 undergoing the discharge test or charge test at a constant temperature and humidity to perform the discharge test or charge test on the battery 1 under constant temperature and humidity conditions.
[0121] In an embodiment of the present application, a test device 10 for a battery includes a control module 2, a charge and discharge module 3, a first relay 5, and a temperature and humidity adjustment component 4. The control module 2 closes the first relay 5 to form a discharge test circuit among the battery 1, the charge and discharge module 3, the first relay 5, and the temperature and humidity adjustment component 4. At this time, the electric energy output by the battery 1 during the discharge test can supply power to the temperature and humidity adjustment component 4. Furthermore, the temperature and humidity adjustment component 4 uses the electric energy output by the battery 1 during the discharge test to adjust the temperature and humidity of the battery 1 during the discharge test, so that the electric energy output by the battery 1 during the discharge test can form a cycle among the battery 1, the charge and discharge module 3, and the temperature and humidity adjustment component 4, improving the recycling utilization rate of the electric energy output by the battery 1 during the discharge test.
[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.
Claims
1. A battery testing device, characterized in that: include: A control module, used for sending a discharge test instruction, wherein the discharge test instruction instructs to perform a discharge test on the battery; A charge and discharge module, used for controlling the battery to discharge according to the discharge test instruction; a temperature and humidity regulating component, used for regulating the temperature and humidity of the battery during the discharge test, wherein the battery is placed in the temperature and humidity regulating component; and A first relay, located between the charging and discharging module and the temperature and humidity adjustment component; The control module is further used to control the first relay to close so that the electric energy output by the battery in the discharge test can power the temperature and humidity regulating component.
2. The battery testing device according to claim 1, characterized in that: The battery testing device further comprises: An energy storage module, the energy storage module is respectively connected to the charging and discharging module and the first relay; The energy storage module is used to store the electric energy output by the battery during the discharge test; The control module is used to control the first relay to close when the energy storage module stores electrical energy, so that the electrical energy stored in the energy storage module can power the temperature and humidity adjustment component.
3. The battery testing device according to claim 2, characterized in that: The battery testing device further comprises: A second relay; the second relay is located between the temperature and humidity adjustment component and the power grid; The control module is further used to control the second relay to close when the energy storage module does not store electrical energy, so that the power grid can supply power to the temperature and humidity regulating component.
4. The battery testing device according to claim 3, characterized in that: The battery testing device further comprises: A battery temperature monitoring module, wherein the battery temperature monitoring module is respectively connected to the first relay, the second relay and the battery; The control module is further used to control the first relay to close when the energy storage module stores electrical energy, so that the electrical energy stored in the energy storage module can be used to power the battery temperature monitoring module; The control module is further used to control the second relay to close when the energy storage module does not store electrical energy, so that the electrical energy stored in the energy storage module can be used to power the battery temperature monitoring module; The battery temperature monitoring module is used to monitor the battery temperature of the battery during the discharge test and the charge test.
5. The battery testing device according to claim 4, characterized in that: The battery temperature monitoring module includes a temperature measuring patch.
6. The battery testing device according to claim 5, characterized in that: The battery temperature monitoring module is connected to the battery, and includes: the temperature measuring patch is attached to the battery.
7. The battery testing device according to claim 3, characterized in that: The power grid is connected to the charging and discharging module; The power grid is used to charge the battery through the charging and discharging module; The control module is further used to send a charging test instruction, wherein the charging test instruction instructs to perform a charging test on the battery; The charging and discharging module is used to control the power grid to charge the battery according to the charging test instruction; The control module is further used to control the first relay to close so that the electric energy stored in the energy storage module supplies power to the temperature and humidity regulating component, or to control the second relay to close so that the power grid supplies power to the temperature and humidity regulating component; The temperature and humidity regulating component is used to regulate the temperature and humidity of the battery during charging test.
8. The battery testing device according to any one of claims 1 to 7, characterized in that: The control module is in communication connection with the charge and discharge module.
9. The battery testing device according to any one of claims 1 to 7, characterized in that: The temperature and humidity adjustment component includes a temperature and humidity chamber.
10. A battery testing system, characterized in that: The battery testing system comprises: A host computer, and one or more battery testing devices according to any one of claims 1 to 9; The host computer is connected to one or more battery testing devices.