Battery detection device, and control method and control device for battery detection device

Abstract

The invention relates to a battery detection device, a control method of the battery detection device and a control device. The method comprises the steps that the battery detection device comprises a driving assembly and an acquisition assembly, the driving assembly is connected with the acquisition assembly, and the driving assembly is used for driving the acquisition assembly to move, so that the acquisition assembly is electrically connected with a single battery body of a to-be-detected battery; the acquisition assembly is used for acquiring impedance signals of the battery monomers under the condition that the acquisition assembly is electrically connected with the battery monomers, driving the acquisition assembly to move through the driving assembly, so that the acquisition assembly is electrically connected with the battery monomers of the to-be-detected battery, and driving the acquisition assembly to move through the driving assembly under the condition that the acquisition assembly is electrically connected with the battery monomers. The acquisition assembly acquires the impedance signal of the single battery, so that the manpower and time cost required for acquiring the impedance signal is reduced, the consistency detection of the to-be-detected battery based on the impedance signal is further realized, the cost of the consistency detection of the battery is reduced, and the consistency detection of batched batteries is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of camera calibration, and in particular to a battery detection device, a control method for a battery detection device, and a control device. Background Art

[0002] With the development of new energy technology, batteries are widely used in the fields of new energy vehicles, electric ships, etc. Among them, battery consistency is an important indicator to measure battery safety and endurance, so batteries need to be tested.

[0003] At present, an electrochemical workstation is used to measure the impedance spectrum of each battery cell in the battery, and the consistency of the battery is determined based on the impedance spectrum of each battery cell. However, due to the high cost of the electrochemical workstation, the cost of battery consistency detection is high. Summary of the invention

[0004] Based on this, it is necessary to provide a battery detection device, a control method and a control device for the battery detection device, which can reduce the cost of battery consistency detection, in order to address the above technical problems.

[0005] In a first aspect, the present application provides a battery detection device. The detection device includes a driving component and a collecting component, wherein the driving component is connected to the collecting component;

[0006] A driving component, used for driving the collection component to move so that the collection component establishes an electrical connection with a battery cell of the battery to be tested;

[0007] The acquisition component is used to acquire the impedance signal of the battery cell when establishing electrical connection with the battery cell.

[0008] The battery detection device provided in the embodiment of the present application includes a driving component and a collecting component. The driving component is used to drive the collecting component to move so that the collecting component establishes an electrical connection with the battery cell of the battery to be tested; the collecting component is used to collect the impedance signal of the battery cell when the electrical connection is established with the battery cell. Since the embodiment of the present application does not require manual connection of the electrochemical workstation with the battery to be tested by wiring, it can save manpower and time costs, and there is no need for the electrochemical workstation to collect impedance signals. Instead, the driving component drives the collecting component to move so that the collecting component establishes an electrical connection with the battery cell of the battery to be tested. When the collecting component establishes an electrical connection with the battery cell, the collecting component collects the impedance signal of the battery cell, reducing the manpower and time costs required for collecting the impedance signal, thereby realizing consistency detection of the battery to be tested based on the impedance signal, reducing the cost of battery consistency detection, and facilitating consistency detection of batch batteries.

[0009] In one embodiment, the acquisition component includes a circuit board and a plurality of acquisition modules disposed on the circuit board;

[0010] The acquisition module is used to acquire the impedance signal of the battery cell when establishing electrical connection with the battery cell.

[0011] The acquisition component in the embodiment of the present application includes a circuit board and a plurality of acquisition modules arranged on the circuit board, and the acquisition module can acquire the impedance signal of the battery cell when establishing an electrical connection with the battery cell. Since the plurality of acquisition modules are integrated on the circuit board to acquire the impedance signal of the battery cell, the impedance signal of the battery cell is acquired instead of the traditional electrochemical workstation, thereby reducing the cost of battery consistency detection. In addition, since the impedance signals of multiple battery cells can be acquired simultaneously through multiple acquisition modules, the efficiency of battery consistency detection is improved.

[0012] In one embodiment, the acquisition module includes an acquisition chip disposed on a circuit board and a probe connected to the acquisition chip;

[0013] The acquisition chip is used to acquire the impedance signal of the battery cell through the probe when an electrical connection is established with the battery cell through the probe.

[0014] In the embodiment of the present application, the acquisition chip is integrated into the circuit board by means of an integrated circuit, and the impedance signal of the battery cell is acquired by the probe when the probe connected to the acquisition chip is electrically connected to the battery cell, thereby realizing consistency detection of the battery. It is understandable that after acquiring the impedance signal of the battery cell, the acquisition component can also be driven to move so that the probe and the battery cell are no longer electrically connected, and after waiting for the battery cell of the next battery to be tested to arrive at the detection station, the acquisition component is driven to move so that the probe and the battery cell of the next battery to be tested are electrically connected, thereby realizing the continued detection of the consistency of the next battery to be tested. Since the acquisition component is driven to move, it can be realized whether the probe is electrically connected to the battery cell, and then the impedance signal of the battery cell is acquired, thereby eliminating the work of frequently wiring and disconnecting the battery to be tested required by the traditional method, thereby saving the time cost required for battery consistency detection and improving the efficiency of battery consistency detection to meet actual detection needs.

[0015] In one embodiment, the acquisition chips on each acquisition module are connected in series.

[0016] In the embodiment of the present application, since the acquisition chips on each acquisition module are connected in series, the impedance signals acquired by the series acquisition chips can be transmitted in a daisy chain manner. Therefore, the impedance signals of multiple battery cells can be acquired simultaneously, thereby improving the efficiency of battery consistency detection.

[0017] In one of the embodiments, an isolation transformer is further provided on the circuit board, and the isolation transformer is connected to a collection chip located at at least one end of the circuit board.

[0018] In the embodiment of the present application, an isolation transformer can be used to isolate the interference of external impulse voltage, and the external impulse voltage refers to the power supply voltage for the acquisition module. The isolation transformer can prevent the sudden change of the power supply voltage from interfering with the acquisition module, thereby improving the accuracy of the impedance signal collected by the acquisition chip and improving the accuracy of the battery consistency detection result.

[0019] In one of the embodiments, the detection device further includes an acquisition board, which is connected to an acquisition chip located at at least one end of the circuit board through an isolation transformer;

[0020] The acquisition board is used to control the acquisition chip to collect the impedance signal of the battery cell according to the preset sampling frequency.

[0021] In the embodiment of the present application, the sampling frequency of the acquisition chip is controlled by the acquisition board, so that the acquisition chip can collect more abundant impedance signals, and the consistency of the battery is analyzed based on the more abundant impedance signals, so that the consistency detection result obtained is more accurate.

[0022] In one embodiment, the acquisition component includes a support plate, which is connected to the circuit board and is arranged on a side of the circuit board facing the driving component.

[0023] In the embodiment of the present application, connecting the circuit board to the support plate can improve the stability of the circuit board and the stability of the electrical connection established between the acquisition module provided on the circuit board and the battery cell, thereby improving the accuracy of the impedance signal of the acquired battery cell.

[0024] In one of the embodiments, the detection device further includes a transmission component and a carrier component;

[0025] The conveying component is used to convey the battery to be tested to the carrier component.

[0026] The detection device provided in the embodiment of the present application transfers the battery to be tested to the carrier component through the transfer component, thereby eliminating the need to carry the battery to be tested to the carrier component by manpower, thereby saving manpower costs and improving detection efficiency.

[0027] In one embodiment, a sensor is disposed on the object-carrying component;

[0028] The sensor is used to output a sensing signal when it detects that the battery to be tested is carried on the carrier component; the sensing signal is used to control the movement of the acquisition component.

[0029] In the embodiment of the present application, when the sensor provided on the loading assembly detects that the loading assembly carries a battery to be tested, the sensor outputs a sensing signal, thereby realizing control of the movement of the acquisition assembly based on the sensing signal. That is, when the sensor detects that the loading assembly carries a battery to be tested, the movement of the acquisition assembly is controlled by the sensing signal output by the sensor, so that the acquisition assembly can be more accurately connected to the battery cell after movement, thereby improving the reliability of the impedance signal of the battery cell detected by the acquisition assembly.

[0030] In one of the embodiments, the detection device further includes a clamping assembly;

[0031] The clamping assembly is used to fix the battery to be tested.

[0032] The clamping assembly provided in the embodiment of the present application can fix the battery to be tested, so that the battery to be tested is in a fixed state, thereby improving the reliability of the electrical connection between the acquisition module and the battery cells of the battery to be tested.

[0033] In one of the embodiments, the detection device further includes a processor, and the processor is connected to the acquisition component;

[0034] A collection component, used to collect impedance signals, voltage signals and temperature signals of the battery cells when an electrical connection is established with the battery cells, and send the impedance signals, voltage signals and temperature signals to the processor;

[0035] The processor is used to detect the consistency of the battery to be tested and obtain a test result according to the impedance signal, the voltage signal and the temperature signal.

[0036] In an embodiment of the present application, the processor detects the consistency of the battery to be tested based on the impedance signal, voltage signal and temperature signal to obtain a test result, thereby achieving consistency detection of the battery to be tested based on richer and more diverse signals to obtain a test result, further improving the accuracy of the test result.

[0037] In a second aspect, the present application also provides a control method for a battery detection device. The method is applied to the detection device, the detection device includes a driving component and a collection component, the driving component is connected to the collection component; the method includes:

[0038] Sending a start command to the drive component;

[0039] When the driving component drives the acquisition component to move based on the start instruction so that the acquisition component establishes an electrical connection with the battery cell of the battery to be tested, receiving the impedance signal of the battery cell sent by the acquisition component;

[0040] The test result is obtained by performing consistency test on the battery to be tested according to the impedance signal.

[0041] In one embodiment, the method further comprises:

[0042] A sensor in the receiving detection device senses a sensing signal sent when the battery to be tested is located at the detection station;

[0043] A start instruction is sent to the driving component based on the sensing signal.

[0044] In one embodiment, sending a start instruction to a detection device based on the sensing signal includes:

[0045] Sending a control instruction to a clamping component in the detection device based on the sensing signal; the control instruction is used to instruct the clamping component to fix the battery to be tested;

[0046] When the battery to be tested is in a fixed state, a start instruction is sent to the driving component.

[0047] In one embodiment, the method further comprises:

[0048] When the acquisition component is electrically connected to the battery cell of the battery to be tested, receiving the voltage signal and temperature signal of the battery cell sent by the acquisition component;

[0049] The battery to be tested is tested for consistency based on the impedance signal to obtain the test results, including:

[0050] According to the impedance signal, the voltage signal and the temperature signal, the consistency of the battery to be tested is tested to obtain a test result.

[0051] In one embodiment, the consistency of the battery to be tested is detected according to the impedance signal, the voltage signal and the temperature signal to obtain a test result, including:

[0052] If the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold, then the detection result is determined to be that the battery cell is an abnormal battery cell.

[0053] In a third aspect, the present application further provides a control device, wherein the detection device includes a driving component and a collection component; the control device includes:

[0054] A sending module sends a start instruction to the drive component;

[0055] A receiving module, configured to receive an impedance signal of a battery cell sent by the acquisition component when the driving component drives the acquisition component to move based on a start instruction so that the acquisition component establishes an electrical connection with a battery cell of a battery to be tested;

[0056] The detection module is used to perform consistency detection on the battery to be tested according to the impedance signal to obtain a detection result.

[0057] In a fourth aspect, the present application further provides a computer device, wherein the computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the method provided in the above embodiment are implemented.

[0058] In a fifth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the method provided in the above embodiment are implemented.

[0059] In a sixth aspect, the present application further provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the method provided in the above embodiment are implemented.

[0060] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0062] Figure 1 is a schematic diagram of a battery detection device provided in an embodiment of the present application;

[0063] Figure 2 It is a structural schematic diagram of a collection component provided in an embodiment of the present application;

[0064] Figure 3 is a schematic diagram of another battery detection device provided in an embodiment of the present application;

[0065] Figure 4 is a schematic diagram of another battery detection device provided in an embodiment of the present application;

[0066] Figure 5 It is a flowchart of a control method of a battery detection device provided in an embodiment of the present application;

[0067] Figure 6 It is a flowchart of a method for sending a startup instruction provided in an embodiment of the present application;

[0068] Figure 7It is a flowchart of a method for sending a startup instruction provided in an embodiment of the present application;

[0069] Figure 8 is a schematic diagram of battery consistency detection results provided by an embodiment of the present application;

[0070] Fig. 9 is a structural schematic diagram of a control device provided in an embodiment of the present application;

[0071] Fig.10 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0072] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0074] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0075] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0076] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0077] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0078] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0079] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. 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 the specific circumstances.

[0080] With the development of new energy technology, batteries are widely used in the fields of new energy vehicles, electric ships, etc. Among them, battery consistency is an important indicator to measure battery safety and endurance. The reasons for the difference in battery consistency mainly include the following two aspects:

[0081] On the one hand, the manufacture of new batteries is affected by various factors such as manufacturing process and materials, and there are certain differences in the battery cells themselves. This difference is usually manifested in different characteristics such as capacity, internal resistance, self-discharge rate, voltage platform, and charge and discharge curve, which may cause consistency differences between the battery cells in the battery. On the other hand, with the retirement of a large number of new energy batteries, the use of retired batteries is different from that of new batteries. Since each battery cell in the retired batteries is in a different position in the battery and the use environment is also different, such as the temperature will be slightly different. Long-term accumulation will cause each battery cell to age differently, resulting in consistency differences between the battery cells in the battery. Since the deterioration of consistency between battery cells will lead to a decrease in battery life and even affect safety of use, it is necessary to conduct consistency testing on the battery.

[0082] At present, the process of consistency testing of batteries is as follows: first, the battery to be tested is charged or discharged at a constant current to make the charge state of the battery to be tested consistent. Then the battery to be tested is placed in a test incubator to keep the battery to be tested warm, so that the temperature of the battery to be tested reaches the preset detection temperature. After reaching the detection temperature, it is necessary to manually connect the electrochemical workstation to the battery to be tested by wiring, and then keep the battery to be tested warm for a certain period of time. Finally, the electrochemical workstation is used to measure the impedance spectrum of each battery cell in the battery to be tested, and the consistency of the battery is determined based on the impedance spectrum of each battery cell. However, due to the high cost of electrochemical workstations, the cost of battery consistency testing is high.

[0083] In order to reduce the cost of battery consistency testing, an embodiment of the present application provides a battery testing device, which is used to replace the above-mentioned electrochemical workstation, thereby reducing the cost of battery consistency testing.

[0084] In order to introduce the battery detection device provided in the embodiment of the present application, Figure 1 For explanation. Figure 1 As shown, Figure 1 1 is a schematic diagram of a battery detection device provided in an embodiment of the present application. The detection device includes a driving component 11 and a collecting component 12, and the driving component 11 is connected to the collecting component 12;

[0085] The driving component 11 is used to drive the collecting component 12 to move so that the collecting component 12 establishes an electrical connection with the battery cells of the battery to be tested 13 ; the driving component 11 is connected to the collecting component 12 .

[0086] The acquisition component 12 is used to acquire the impedance signal of the battery cell when establishing electrical connection with the battery cell.

[0087] In the embodiment of the present application, the driving component 11 may include a hydraulic cylinder, a pneumatic cylinder, a motor, etc. The acquisition component 12 may include an impedance acquisition circuit, and the impedance signal of the battery cell is acquired through the impedance acquisition circuit. Alternatively, the acquisition component 12 is a voltage and current acquisition circuit, and the current signal and voltage signal of the battery cell are acquired through the voltage and current acquisition circuit, and the impedance signal of the battery cell is determined based on the acquired current signal and voltage signal. It should be noted that the connection between the driving component 11 and the acquisition component 12 may include a detachable connection or a non-detachable connection.

[0088] If a pneumatic cylinder is used as a driving component, the cylinder is composed of several main parts: a cylinder barrel, a cylinder head, a piston and a piston rod. The compressed air can be input into the cylinder by a solenoid valve to push the piston to reciprocate in the cylinder barrel, and at the same time, the piston rod pushes the collection component connected to the piston rod to move.

[0089] If a motor is used as a driving component, the output shaft of the motor can be connected to the collection component to drive the collection component to move.

[0090] The driving component 11 can drive the acquisition component 12 to move, so that the acquisition component 12 establishes an electrical connection with the battery cell of the battery to be tested. The acquisition component 12 can establish an electrical connection with the battery cell of the battery to be tested through contact points such as probes or spring sheets on the acquisition component. When the acquisition component 12 establishes an electrical connection with the battery cell, the acquisition component 12 acquires the impedance signal of the battery cell, thereby performing consistency detection on the battery to be tested 13 based on the acquired impedance signal.

[0091] The method for performing consistency detection on the battery to be tested based on the impedance signal can be: based on the impedance signal of each battery cell of the battery to be tested, the impedance average value of the battery to be tested is determined; if the difference between the impedance of a certain battery cell and the impedance average value is greater than a preset difference, it can be determined that the aging degree of the battery cell is relatively serious, which means that the consistency of the battery cell with other battery cells is poor, and the battery cell can be eliminated.

[0092] Alternatively, the impedance spectrum corresponding to the impedance signal of each battery cell of the battery to be tested is fitted to obtain a fitting result, and the consistency detection of the battery to be tested 13 is performed based on the fitting result.

[0093] In the traditional technology, the electrochemical workstation needs to be manually connected to the battery to be tested by wiring, which makes the detection process time-consuming and labor-intensive. In the present application, the driving component drives the collection component to move, so that the collection component and the battery cell of the battery to be tested are electrically connected, and there is no need to manually connect the battery cell to the collection component, which saves time and effort.

[0094] The battery detection device provided in the embodiment of the present application includes a driving component and a collecting component. The driving component is used to drive the collecting component to move so that the collecting component establishes an electrical connection with the battery cell of the battery to be tested; the collecting component is used to collect the impedance signal of the battery cell when the electrical connection is established with the battery cell. Since the embodiment of the present application does not require manual connection of the electrochemical workstation with the battery to be tested by wiring, it can save manpower and time costs, and there is no need for the electrochemical workstation to collect impedance signals. Instead, the driving component drives the collecting component to move so that the collecting component establishes an electrical connection with the battery cell of the battery to be tested. When the collecting component establishes an electrical connection with the battery cell, the collecting component collects the impedance signal of the battery cell, reducing the manpower and time costs required for collecting the impedance signal, thereby realizing consistency detection of the battery to be tested based on the impedance signal, reducing the cost of battery consistency detection, and facilitating consistency detection of batch batteries.

[0095] In one embodiment, if Figure 2As shown, Figure 2 2 is a schematic diagram of the structure of a collection component provided in an embodiment of the present application. The collection component includes a circuit board 21 and a plurality of collection modules arranged on the circuit board 21. Figure 2 The multiple acquisition modules shown in FIG. 2 include acquisition module 211 , acquisition module 212 , acquisition module 213 , acquisition module 214 , acquisition module 215 and acquisition module 216 .

[0096] The acquisition module is used to acquire the impedance signal of the battery cell when establishing electrical connection with the battery cell.

[0097] The circuit board 21 may include but is not limited to a flexible printed circuit board (Flexible Printed Circuitboard, FPC), a printed circuit board (Printed Circuit Board, PCB), a rigid-flex PCB, etc.

[0098] One acquisition module is electrically connected to one battery cell. If the acquisition component includes multiple acquisition modules, then multiple acquisition modules can be electrically connected to multiple battery cells. Figure 2 As shown, if one acquisition component includes six acquisition modules, namely acquisition module 211 to acquisition module 216, then acquisition module 211 can establish an electrical connection with battery cell A, acquisition module 212 can establish an electrical connection with battery cell B, acquisition module 213 can establish an electrical connection with battery cell C, and so on. The six acquisition modules can establish an electrical connection with six battery cells, thereby realizing the simultaneous acquisition of impedance signals of six battery cells, thereby improving the efficiency of battery consistency detection.

[0099] It should be noted that each acquisition module may be provided with a contact point, which may include a spring or a probe, and the probe may be a spring probe. After establishing an electrical connection with the battery cell through the contact point, the acquisition module may acquire the impedance signal of the connected battery cell. The acquisition module may also be a voltage and current acquisition circuit or an impedance acquisition circuit capable of acquiring the impedance signal of the battery cell, and the impedance signal of the battery cell is acquired through the voltage and current acquisition circuit or the impedance acquisition circuit.

[0100] The acquisition component in the embodiment of the present application includes a circuit board and a plurality of acquisition modules arranged on the circuit board, and the acquisition module can acquire the impedance signal of the battery cell when establishing an electrical connection with the battery cell. Since the plurality of acquisition modules are integrated on the circuit board to acquire the impedance signal of the battery cell, the impedance signal of the battery cell is acquired instead of the traditional electrochemical workstation, thereby reducing the cost of battery consistency detection. In addition, since the impedance signals of multiple battery cells can be acquired simultaneously through multiple acquisition modules, the efficiency of battery consistency detection is improved.

[0101] In one embodiment, if Figure 3 As shown, Figure 3 2 is a schematic diagram of another battery detection device provided in an embodiment of the present application. The acquisition module provided on the circuit board 21 in the detection device may include an acquisition chip, and the acquisition chip may be connected to the probe 31;

[0102] The acquisition chip is used to acquire the impedance signal of the battery cell through the probe 31 when an electrical connection is established with the battery cell through the probe 31 .

[0103] The acquisition chip in this embodiment may include an electrochemical impedance spectroscopy (EIS) acquisition chip, and the EIS acquisition chip includes a DNB11XX series chip.

[0104] In traditional technology, since the electrochemical workstation is a relatively large device, an additional power supply is required to supply power to the electrochemical workstation to ensure the operation of the electrochemical workstation. In this application, an acquisition chip is used to establish an electrical connection with the battery cell of the battery to be tested. Since the battery cell itself has electricity, it can supply power to the acquisition chip, so that the acquisition chip works and collects the impedance signal of the battery cell, thereby saving the deployment cost of the power supply.

[0105] In the embodiment of the present application, the acquisition chip is integrated into the circuit board by means of an integrated circuit, and the impedance signal of the battery cell is acquired by the probe when the probe connected to the acquisition chip is electrically connected to the battery cell, thereby realizing consistency detection of the battery. It is understandable that after acquiring the impedance signal of the battery cell, the acquisition component can also be driven to move so that the probe and the battery cell are no longer electrically connected, and after waiting for the battery cell of the next battery to be tested to arrive at the detection station, the acquisition component is driven to move so that the probe and the battery cell of the next battery to be tested are electrically connected, thereby realizing the continued detection of the consistency of the next battery to be tested. Since the acquisition component is driven to move, it can be realized whether the probe is electrically connected to the battery cell, and then the impedance signal of the battery cell is acquired, thereby eliminating the work of frequently wiring and disconnecting the battery to be tested required by the traditional method, thereby saving the time cost required for battery consistency detection and improving the efficiency of battery consistency detection to meet actual detection needs.

[0106] In one embodiment, the acquisition chips on each acquisition module are connected in series.

[0107] Optionally, the acquisition chips on each acquisition module may also be connected in parallel, and the impedance signal acquired by each acquisition chip is transmitted to the computer device.

[0108] In the embodiment of the present application, since the acquisition chips on each acquisition module are connected in series, the impedance signals acquired by the series acquisition chips can be transmitted in a daisy chain manner. Therefore, the impedance signals of multiple battery cells can be acquired simultaneously, thereby improving the efficiency of battery consistency detection.

[0109] In one embodiment, if Figure 4 As shown, Figure 4 is a schematic diagram of another battery detection device provided in an embodiment of the present application. Figure 2 and Figure 4 An isolation transformer is also provided on the circuit board 21 , and the isolation transformer is connected to the acquisition chip located at at least one end of the circuit board 21 .

[0110] In this embodiment, a battery includes a module, and the module includes 6 battery cells. For example, if the acquisition component included in the detection device is provided with 6 acquisition chips, the 6 acquisition chips can simultaneously acquire impedance signals of 6 battery cells. The connection relationship between the 6 acquisition chips and the isolation transformer can refer to Figure 2 and Figure 4 shown. Figure 2 Six acquisition modules are shown in FIG. 1 , and one acquisition module is provided with an acquisition chip. Figure 2 and Figure 4 , Figure 4 Six acquisition chips are shown in FIG. Figure 2 and Figure 4 Two isolation transformers are arranged on the circuit board 21 shown in the figure. One isolation transformer 41 is connected to the acquisition chip 411 located at one end of the circuit board 21, and the other isolation transformer 42 is connected to the acquisition chip 416 located at the other end of the circuit board 21.

[0111] It should be noted that if a battery includes multiple modules, and each module includes 6 battery cells, the impedance signals of each battery cell in a module can be collected by the above-mentioned 6 acquisition chips, and then the impedance signals of each battery cell in the next module can be collected until the impedance signals of the battery cells in each module in the battery are collected. In this case, the first average value of the impedance of each battery cell in the battery can be determined in combination with the impedance signals of each battery cell in the battery. Based on the impedance signals of each battery cell in a module, the second average value of the impedance of the module is determined. If the difference between the second average value and the first average value of a module is greater than the preset difference, it is determined that the aging degree of the module is more serious, that is, the consistency difference between the module and other modules is large. In this case, the modules with more serious aging can be eliminated, so that the consistency of the remaining modules is higher, thereby improving the battery life and safety of the battery composed of modules with higher consistency.

[0112] In the embodiment of the present application, an isolation transformer can be used to isolate the interference of external impulse voltage, and the external impulse voltage refers to the power supply voltage for powering the acquisition module. The isolation transformer can prevent the sudden change of the power supply voltage from interfering with the acquisition module, thereby improving the accuracy of the impedance signal collected by the acquisition chip and improving the accuracy of the battery consistency detection result.

[0113] In one embodiment, if Figure 4 As shown, the detection device further includes an acquisition board 43, and the acquisition board 43 is connected to an acquisition chip located at at least one end of the circuit board through an isolation transformer;

[0114] The acquisition board 43 is used to control the acquisition chip to acquire the impedance signal of the battery cell according to a preset sampling frequency.

[0115] For example, Figure 4 As shown, the acquisition board 43 is connected to the isolation transformer 41 and the isolation transformer 42. The acquisition board 43 controls the trigger signal of the preset sampling frequency and transmits the trigger signal to the acquisition chip. The acquisition chip acquires the impedance signal of the battery cell based on the preset sampling frequency of the trigger signal. After the acquisition chip acquires the impedance signal, it can send the impedance signal to the computer device 44 through the acquisition board 43. The computer device 44 detects the consistency of the battery to be tested based on the impedance signal.

[0116] In the embodiment of the present application, the sampling frequency of the acquisition chip is controlled by the acquisition board, so that the acquisition chip can collect more abundant impedance signals, and the consistency of the battery is analyzed based on the more abundant impedance signals, so that the consistency detection result obtained is more accurate.

[0117] In one embodiment, if Figure 3 As shown, the acquisition component 12 includes a support plate 32 , which is connected to the circuit board 21 and is disposed on a side of the circuit board 21 facing the driving component 11 .

[0118] In the embodiment of the present application, the connection method between the support plate 32 and the circuit board 21 may include but is not limited to adhesive connection, welding, detachable connection, etc. Connecting the circuit board 21 to the support plate 32 can improve the stability of the circuit board 21, improve the stability of the electrical connection established between the acquisition module provided on the circuit board 21 and the battery cell, and thus improve the accuracy of the impedance signal of the acquired battery cell.

[0119] In one embodiment, if Figure 3 As shown, the detection device also includes a transmission component 33 and a carrier component 34;

[0120] The conveying assembly 33 is used to convey the battery to be tested to the loading assembly 34 .

[0121] In this embodiment, the loading component 34 may include objects such as a loading platform and a loading tray. After the conveying component 33 conveys the battery to be tested to the loading component 34, the driving component 11 may drive the collecting component to move so that the collecting component 12 establishes an electrical connection with the battery cell of the battery to be tested.

[0122] The detection device provided in the embodiment of the present application transfers the battery to be tested to the carrier component through the transfer component, thereby eliminating the need to carry the battery to be tested to the carrier component by manpower, thereby saving manpower costs and improving detection efficiency.

[0123] In one embodiment, if Figure 3 As shown, a sensor 35 is provided on the object-carrying component 34;

[0124] The sensor 35 is used to output a sensing signal when it detects that a battery to be tested is carried on the carrying component 34; the sensing signal is used to control the movement of the acquisition component 12.

[0125] When the sensor 35 detects that the battery to be tested is carried on the carrying assembly 34 , it means that the battery to be tested has arrived at the testing station, and the sensor 35 can output a sensing signal.

[0126] In this embodiment, the sensor 35 can output a sensing signal to the computer device. When the computer device receives the sensing signal, it sends a start instruction to the driving component 11. When the driving component 11 receives the start instruction, it drives the acquisition component 12 to move, so that the acquisition component 12 establishes an electrical connection with the battery cell of the battery to be tested.

[0127] Optionally, the sensor 35 may also directly send a sensing signal to the driving component 11 , and when the driving component 11 receives the sensing signal, it drives the collecting component 12 to move, so that the collecting component 12 establishes an electrical connection with a battery cell of the battery to be tested.

[0128] In the embodiment of the present application, when the sensor provided on the loading assembly detects that the loading assembly carries a battery to be tested, the sensor outputs a sensing signal, thereby realizing control of the movement of the acquisition assembly based on the sensing signal. That is, when the sensor detects that the loading assembly carries a battery to be tested, the movement of the acquisition assembly is controlled by the sensing signal output by the sensor, so that the acquisition assembly can be more accurately connected to the battery cell after movement, thereby improving the reliability of the impedance signal of the battery cell detected by the acquisition assembly.

[0129] In one of the embodiments, the detection device further includes a clamping assembly;

[0130] The clamping assembly is used to fix the battery to be tested.

[0131] The clamping assembly can be a cylinder arranged on the left and right sides or the front and rear sides of the object-carrying assembly. For example, a cylinder is arranged on the front and rear sides of the object-carrying assembly respectively, and the battery to be tested is clamped by a clamp connected to the cylinder so that the battery to be tested is in a fixed state. Alternatively, the clamping assembly is a manipulator, and the battery to be tested is fixed by the manipulator.

[0132] In the embodiment of the present application, when the sensor detects that the battery to be tested is already carried on the carrier assembly, it can send an induction signal to the computer device. When the computer device receives the induction signal, it sends a control signal to the clamping assembly, and the clamping assembly fixes the battery to be tested based on the control signal. After the computer device sends the control signal to the clamping assembly and delays for a first preset time, it can be determined that the clamping assembly has fixed the battery to be tested. In this case, the computer device can send a start instruction to the drive assembly, and the drive assembly drives the acquisition assembly to move based on the start instruction, so that the acquisition assembly establishes an electrical connection with the battery cell of the battery to be tested.

[0133] The clamping assembly provided in the embodiment of the present application can fix the battery to be tested, so that the battery to be tested is in a fixed state, thereby improving the reliability of the electrical connection between the acquisition module and the battery cells of the battery to be tested.

[0134] In one embodiment, the detection device further includes a processor, and the processor is connected to the acquisition component 12;

[0135] The acquisition component 12 is used to acquire the impedance signal, voltage signal and temperature signal of the battery cell when establishing electrical connection with the battery cell, and send the impedance signal, voltage signal and temperature signal to the processor;

[0136] The processor is used to detect the consistency of the battery to be tested and obtain a test result according to the impedance signal, the voltage signal and the temperature signal.

[0137] It should be noted that the processor can be arranged on the circuit board 21 , that is, the processor and the acquisition component 21 are both arranged on the circuit board 21 , or the processor and the circuit board 21 are arranged independently.

[0138] In an embodiment of the present application, the processor can combine the impedance signal, the voltage signal and the temperature signal to detect the consistency of the battery to be tested and obtain a test result. Optionally, if the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold, then the test result is determined to be that the battery cell is an abnormal battery cell. That is, when the impedance signal of a battery cell is greater than the preset impedance signal threshold, the voltage signal is less than the preset voltage signal threshold, and the temperature signal is greater than the preset temperature signal threshold, it means that the aging degree of the battery cell is more serious, the battery cell is an abnormal battery cell, and the battery cell can be removed.

[0139] Optionally, when the impedance signal is greater than a preset impedance signal threshold, if the voltage signal is less than a preset voltage signal threshold or the temperature signal is greater than a preset temperature signal threshold, it can be determined that the detection result is that the battery cell is an abnormal battery cell.

[0140] In an embodiment of the present application, the processor detects the consistency of the battery to be tested based on the impedance signal, voltage signal and temperature signal to obtain a test result, thereby achieving consistency detection of the battery to be tested based on richer and more diverse signals to obtain a test result, further improving the accuracy of the test result.

[0141] In an embodiment of the present application, a control method for a battery detection device is also provided. Figure 5 As shown, Figure 5 1 is a flow chart of a control method for a battery detection device provided in an embodiment of the present application. The method is applied to the detection device in the above embodiment, the detection device includes a drive component and a collection component, the drive component is connected to the collection component; the execution subject of the method can be a computer device. The method can include the following steps:

[0142] S501. Send a start instruction to a drive component.

[0143] S502: When the driving component drives the acquisition component to move based on the start-up instruction so that the acquisition component establishes an electrical connection with a battery cell of the battery to be tested, receive an impedance signal of the battery cell sent by the acquisition component.

[0144] S503 , performing consistency detection on the battery to be tested according to the impedance signal to obtain a detection result.

[0145] The control method provided in the embodiment of the present application sends a start instruction to the driving component, and when the driving component drives the acquisition component to move based on the start instruction, the acquisition component establishes an electrical connection with the battery cell of the battery to be tested, receives the impedance signal of the battery cell sent by the acquisition component, and performs consistency detection on the battery to be tested according to the impedance signal to obtain a detection result. Since there is no need for an electrochemical workstation to perform consistency detection on the battery to be tested, the cost of battery consistency detection is reduced.

[0146] In one embodiment, if Figure 6 As shown, Figure 6 1 is a flow chart of a method for sending a startup instruction provided in an embodiment of the present application. This embodiment relates to a possible implementation method of sending a startup instruction to a detection device under what circumstances. Based on the above embodiment, the method includes the following steps:

[0147] S601, receiving a sensing signal sent by a sensor in a detection device when the sensor senses that the battery to be tested is located at a detection station.

[0148] S602: Send a start instruction to the driving component based on the sensing signal.

[0149] The method provided in this embodiment controls the movement of the acquisition component based on the induction signal by receiving the induction signal sent by the sensor in the detection device when the battery to be tested is located at the detection station, and sending a start instruction to the drive component based on the induction signal. That is, when the sensor detects that the battery to be tested is already carried on the carrier component, the start instruction is sent to the drive component through the induction signal output by the sensor, so that the drive component drives the acquisition component to move based on the start instruction, thereby improving the probability that the acquisition component can be more accurately connected to the battery cell after moving, and further improving the reliability of the acquisition component detecting the impedance signal of the battery cell.

[0150] In one embodiment, if Figure 7 As shown, Figure 7 1 is a flow chart of a method for sending a start instruction provided in an embodiment of the present application. This embodiment relates to a possible implementation method of sending a start instruction to a detection device based on a sensing signal. Based on the above embodiment, the above S602 includes the following steps:

[0151] S701, sending a control instruction to a clamping component in a detection device based on a sensing signal; the control instruction is used to instruct the clamping component to fix the battery to be tested.

[0152] S702: When the battery to be tested is in a fixed state, send a start instruction to the driving component.

[0153] Among them, after sending a control instruction to the detection device based on the induction signal and delaying for a second preset time, the computer device can determine that the clamping component has fixed the battery to be tested, that is, it can be determined that the battery to be tested is in a fixed state. In this case, the computer device can send a start instruction to the driving component.

[0154] In the embodiment of the present application, a control instruction is sent to the clamping component in the detection device based on the sensing signal, and a start instruction is sent to the driving component when the battery to be tested is in a fixed state. Thus, when the battery to be tested is in a fixed state, the acquisition component is driven to move, thereby improving the reliability of the electrical connection between the acquisition module and the battery cell of the battery to be tested.

[0155] In one embodiment, based on the above embodiment, the following steps may also be included:

[0156] When the acquisition component is electrically connected to the battery cell of the battery to be tested, the voltage signal and temperature signal of the battery cell sent by the acquisition component are received.

[0157] Accordingly, the above-mentioned S503, performing consistency detection on the battery to be tested according to the impedance signal, can be implemented in the following manner:

[0158] According to the impedance signal, the voltage signal and the temperature signal, the consistency of the battery to be tested is tested to obtain a test result.

[0159] Among them, according to the impedance signal, the voltage signal and the temperature signal, the consistency of the battery to be tested is tested to obtain the test result, which can be achieved in the following way:

[0160] Optionally, if the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold, the detection result is determined to be that the battery cell is an abnormal battery cell. That is, when the impedance signal of a battery cell is greater than the preset impedance signal threshold, the voltage signal is less than the preset voltage signal threshold, and the temperature signal is greater than the preset temperature signal threshold, it means that the aging degree of the battery cell is relatively serious, the battery cell is an abnormal battery cell, and the battery cell can be removed.

[0161] Optionally, when the impedance signal is greater than a preset impedance signal threshold, if the voltage signal is less than a preset voltage signal threshold or the temperature signal is greater than a preset temperature signal threshold, it can be determined that the detection result is that the battery cell is an abnormal battery cell.

[0162] Based on the control method provided in the embodiment of the present application, the consistency of the battery can be detected. The battery consistency detection result can be referred to Figure 8 As shown, Figure 8 It is a schematic diagram of battery consistency detection results provided in an embodiment of the present application. Figure 8 The horizontal axis represents the serial number of the battery cell, and the vertical axis represents the impedance corresponding to the battery cell, in milliohms (mΩ). Figure 8 The left half of the figure represents the real impedance of the battery cell. Figure 8 The right half of the middle part represents the impedance of the imaginary part corresponding to the battery cell. Figure 8 It can be seen that the impedance of a battery cell in the range from number 80 to number 100 is relatively large, that is, the consistency between this battery cell and other battery cells is poor.

[0163] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0164] Based on the same inventive concept, the embodiment of the present application also provides a control device for implementing the control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more control device embodiments provided below can refer to the limitations on the control method above, and will not be repeated here.

[0165] In one embodiment, Fig. 9 As shown, Fig. 9 is a schematic diagram of the structure of a control device provided in an embodiment of the present application, the device 900 includes:

[0166] The sending module 901 is used to send a start instruction to the driving component;

[0167] The receiving module 902 is used to receive the impedance signal of the battery cell sent by the acquisition component when the driving component drives the acquisition component to move based on the start instruction so that the acquisition component establishes an electrical connection with the battery cell of the battery to be tested;

[0168] The detection module 903 is used to perform consistency detection on the battery to be tested according to the impedance signal to obtain a detection result.

[0169] In one embodiment, the receiving module 902 is further used to receive a sensing signal sent by a sensor in the detection device when sensing that the battery to be tested is located at the detection station;

[0170] The sending module 901 is further used to send a start instruction to the driving component based on the sensing signal.

[0171] In one of the embodiments, the sending module 901 is specifically used to send a control instruction to the clamping component in the detection device based on the sensing signal; the control instruction is used to instruct the clamping component to fix the battery to be tested; when the battery to be tested is in a fixed state, a start instruction is sent to the driving component.

[0172] In one embodiment, the receiving module 902 is further used to receive the voltage signal and temperature signal of the battery cell sent by the acquisition component when the acquisition component is electrically connected to the battery cell of the battery to be tested;

[0173] Correspondingly, the detection module 903 is also used to detect the consistency of the battery to be tested according to the impedance signal, the voltage signal and the temperature signal to obtain a detection result.

[0174] In one embodiment, the detection module 903 is specifically used to determine that the detection result is that the battery cell is an abnormal battery cell if the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold.

[0175] Each module in the above control device can be implemented in whole or in part by software, hardware or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0176] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig. 9 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a control method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0177] Those skilled in the art will understand that Fig. 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0178] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0179] Sending a start command to the drive component;

[0180] When the driving component drives the acquisition component to move based on the start instruction so that the acquisition component establishes an electrical connection with the battery cell of the battery to be tested, receiving the impedance signal of the battery cell sent by the acquisition component;

[0181] The test result is obtained by performing consistency test on the battery to be tested according to the impedance signal.

[0182] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0183] A sensor in the receiving detection device senses a sensing signal sent when the battery to be tested is located at the detection station;

[0184] A start instruction is sent to the driving component based on the sensing signal.

[0185] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0186] Sending a control instruction to a clamping component in the detection device based on the sensing signal; the control instruction is used to instruct the clamping component to fix the battery to be tested;

[0187] When the battery to be tested is in a fixed state, a start instruction is sent to the driving component.

[0188] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0189] When the acquisition component is electrically connected to the battery cell of the battery to be tested, receiving the voltage signal and temperature signal of the battery cell sent by the acquisition component;

[0190] The battery to be tested is tested for consistency based on the impedance signal to obtain the test results, including:

[0191] According to the impedance signal, the voltage signal and the temperature signal, the consistency of the battery to be tested is tested to obtain a test result.

[0192] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0193] If the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold, then the detection result is determined to be that the battery cell is an abnormal battery cell.

[0194] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0195] Sending a start command to the drive component;

[0196] When the driving component drives the acquisition component to move based on the start instruction so that the acquisition component establishes an electrical connection with the battery cell of the battery to be tested, receiving the impedance signal of the battery cell sent by the acquisition component;

[0197] The test result is obtained by performing consistency test on the battery to be tested according to the impedance signal.

[0198] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0199] A sensor in the receiving detection device senses a sensing signal sent when the battery to be tested is located at the detection station;

[0200] A start instruction is sent to the driving component based on the sensing signal.

[0201] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0202] Sending a control instruction to a clamping component in the detection device based on the sensing signal; the control instruction is used to instruct the clamping component to fix the battery to be tested;

[0203] When the battery to be tested is in a fixed state, a start instruction is sent to the driving component.

[0204] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0205] When the acquisition component is electrically connected to the battery cell of the battery to be tested, receiving the voltage signal and temperature signal of the battery cell sent by the acquisition component;

[0206] The battery to be tested is tested for consistency based on the impedance signal to obtain the test results, including:

[0207] According to the impedance signal, the voltage signal and the temperature signal, the consistency of the battery to be tested is tested to obtain a test result.

[0208] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0209] If the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold, then the detection result is determined to be that the battery cell is an abnormal battery cell.

[0210] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0211] Sending a start command to the drive component;

[0212] When the driving component drives the acquisition component to move based on the start instruction so that the acquisition component establishes an electrical connection with the battery cell of the battery to be tested, receiving the impedance signal of the battery cell sent by the acquisition component;

[0213] The test result is obtained by performing consistency test on the battery to be tested according to the impedance signal.

[0214] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0215] A sensor in the receiving detection device senses a sensing signal sent when the battery to be tested is located at the detection station;

[0216] A start instruction is sent to the driving component based on the sensing signal.

[0217] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0218] Sending a control instruction to a clamping component in the detection device based on the sensing signal; the control instruction is used to instruct the clamping component to fix the battery to be tested;

[0219] When the battery to be tested is in a fixed state, a start instruction is sent to the driving component.

[0220] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0221] When the acquisition component is electrically connected to the battery cell of the battery to be tested, receiving the voltage signal and temperature signal of the battery cell sent by the acquisition component;

[0222] The battery to be tested is tested for consistency based on the impedance signal to obtain the test results, including:

[0223] According to the impedance signal, the voltage signal and the temperature signal, the consistency of the battery to be tested is tested to obtain a test result.

[0224] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0225] If the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold, then the detection result is determined to be that the battery cell is an abnormal battery cell.

[0226] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0227] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in the present application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on regional block chains, etc., but are not limited to this. The processor involved in each embodiment provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0228] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0229] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A battery detection device, characterized in that: The detection device comprises a driving component and a collecting component, wherein the driving component is connected to the collecting component; The driving component is used to drive the collecting component to move so that the collecting component establishes an electrical connection with a battery cell of the battery to be tested; The acquisition component is used to acquire the impedance signal of the battery cell when establishing electrical connection with the battery cell.

2. The detection device according to claim 1, characterized in that: The acquisition component includes a circuit board and a plurality of acquisition modules arranged on the circuit board; The acquisition module is used to acquire the impedance signal of the battery cell when establishing electrical connection with the battery cell.

3. The detection device according to claim 2, characterized in that: The acquisition module includes an acquisition chip arranged on the circuit board and a probe connected to the acquisition chip; The acquisition chip is used to acquire the impedance signal of the battery cell through the probe when an electrical connection is established between the probe and the battery cell.

4. The detection device according to claim 3, characterized in that: The acquisition chips on each of the acquisition modules are connected in series.

5. The detection device according to claim 4, characterized in that: An isolation transformer is also provided on the circuit board, and the isolation transformer is connected to a collection chip located at at least one end of the circuit board.

6. The detection device according to claim 5, characterized in that: The detection device further comprises an acquisition board, wherein the acquisition board is connected to the acquisition chip located at at least one end of the circuit board through the isolation transformer; The acquisition board is used to control the acquisition chip to acquire the impedance signal of the battery cell according to a preset sampling frequency.

7. The detection device according to any one of claims 2 to 6, characterized in that: The acquisition component comprises a support plate, which is connected to the circuit board and arranged on a side of the circuit board facing the driving component.

8. The detection device according to claim 1, characterized in that: The detection device also includes a transmission component and a carrier component; The conveying component is used to convey the battery to be tested to the carrying component.

9. The detection device according to claim 8, characterized in that: The object-carrying component is provided with a sensor; The sensor is used to output a sensing signal when it is detected that the battery to be tested is carried on the carrying component; the sensing signal is used to control the movement of the acquisition component.

10. The detection device according to any one of claims 1 to 6, characterized in that: The detection device also includes a clamping assembly; The clamping assembly is used to fix the battery to be tested.

11. The detection device according to any one of claims 1 to 6, characterized in that: The detection device also includes a processor, and the processor is connected to the acquisition component; The acquisition component is used to acquire the impedance signal, voltage signal and temperature signal of the battery cell when establishing electrical connection with the battery cell, and send the impedance signal, voltage signal and temperature signal to the processor; The processor is used to detect the consistency of the battery to be tested according to the impedance signal, the voltage signal and the temperature signal to obtain a test result.

12. A control method for a battery detection device, characterized in that: The method is applied to a detection device, the detection device includes a driving component and a collection component, the driving component is connected to the collection component; the method includes: Sending a start instruction to the drive component; When the driving component drives the acquisition component to move based on the start instruction so that the acquisition component establishes an electrical connection with a battery cell of the battery to be tested, receiving an impedance signal of the battery cell sent by the acquisition component; A consistency test is performed on the battery to be tested according to the impedance signal to obtain a test result.

13. The method according to claim 12, characterized in that The method further comprises: receiving a sensing signal sent by a sensor in the detection device when the sensor senses that the battery to be tested is located at a detection station; The start instruction is sent to the driving component based on the sensing signal.

14. The method according to claim 13, characterized in that The sending the start instruction to the driving component based on the sensing signal comprises: Sending a control instruction to a clamping component in the detection device based on the sensing signal; the control instruction is used to instruct the clamping component to fix the battery to be tested; When the battery to be tested is in a fixed state, the start instruction is sent to the driving component.

15. The method according to any one of claims 12 to 14, characterized in that: The method further comprises: When the acquisition component is electrically connected to a battery cell of the battery to be tested, receiving a voltage signal and a temperature signal of the battery cell sent by the acquisition component; Performing consistency detection on the battery to be tested according to the impedance signal to obtain a detection result includes: The consistency of the battery to be tested is detected according to the impedance signal, the voltage signal and the temperature signal to obtain a detection result.

16. The method according to claim 15, characterized in that The detecting the consistency of the battery to be tested to obtain a detection result according to the impedance signal, the voltage signal and the temperature signal includes: If the impedance signal is greater than a preset impedance signal threshold, the voltage signal is less than a preset voltage signal threshold, and the temperature signal is greater than a preset temperature signal threshold, then the detection result is determined to be that the battery cell is an abnormal battery cell.

17. A control device, characterized in that: The control device comprises: A sending module sends a start instruction to the drive component; A receiving module, configured to receive an impedance signal of the battery cell sent by the acquisition component when the driving component drives the acquisition component to move based on the start instruction so that the acquisition component establishes an electrical connection with the battery cell of the battery to be tested; The detection module is used to perform consistency detection on the battery to be tested according to the impedance signal to obtain a detection result.

18. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 12 to 16 are implemented.

19. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 12 to 16 are implemented.

20. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 12 to 16 are implemented.

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