Electric vehicle module diagnosis platform and electric vehicle power battery production line

Abstract

The utility model relates to an electric automobile module diagnosis platform, which comprises at least one module unit, and the module unit comprises at least one battery module. The at least one battery simulator is used for replacing the battery module and positioning the faulted battery module; wherein the battery module and the battery simulator respectively comprise a slave control unit, a battery cell unit and a temperature assembly, and the slave control unit is connected with the battery cell unit and the temperature assembly; the at least one module diagnosis device comprises a power supply assembly, a voltage detection module and a temperature detection module; wherein the power supply assembly is connected with the voltage detection module and the temperature detection module; the voltage detection module is connected with the battery module and / or a slave control unit of the battery simulator, and is used for detecting a voltage signal of a battery cell unit connected with the slave control unit; the temperature detection module is connected with the battery module and / or the slave control unit of the battery simulator, and is used for detecting a temperature signal of the temperature assembly of the slave control unit.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicles, in particular to the field of new energy vehicle power battery testing. Background Art

[0002] Existing new energy electric vehicle power battery failures mainly occur in the module and electronic and electrical assembly parts. The traditional means of checking the internal battery cell voltage and temperature signal of the module is to use a multimeter and the wiring harness connection pin definition. The testing process is complicated and there is a high-voltage safety risk in the measurement process. There is a lack of efficient special diagnostic tools.

[0003] The battery management system uses a daisy chain connection method. Usually, the failure of a module or slave control unit will cause the entire string circuit to have no signal. Traditional diagnostic methods require connecting real modules to replace suspected failed modules or slave control units one by one. This operation method is inconvenient and has potential safety risks for operators and diagnostic systems. The existing technology uses a battery simulator to replace the real module to diagnose battery failures.

[0004] The components and integration methods of the power battery simulators produced by the existing technology are very complicated, resulting in the battery simulators being large and inconvenient to carry. In addition, when using the battery simulator to replace the battery module, after finding the problematic battery module, the battery module needs to be transferred to a professional testing bench for testing to locate the specific problem, which is inconvenient to operate in practice and inefficient. Utility Model Content

[0005] In order to solve the problems that the existing battery simulator is large in size, inconvenient to carry, and inconvenient to detect problematic battery modules, the utility model discloses an electric vehicle module diagnosis platform, including:

[0006] At least one module unit, including:

[0007] at least one battery module;

[0008] At least one battery simulator, used to replace the battery module and locate the failed battery module; wherein,

[0009] The battery module and the battery simulator each include a slave control unit, a battery cell unit and a temperature component, and the slave control unit is connected to the battery cell unit and the temperature component; wherein,

[0010] The battery cell unit further comprises:

[0011] One end of the land;

[0012] a power supply terminal;

[0013] A plurality of battery cells connected in series;

[0014] At least one module diagnostic device, comprising:

[0015] a power supply assembly;

[0016] A voltage detection module;

[0017] A temperature detection module; wherein,

[0018] The power supply component is connected to the voltage detection module and the temperature detection module;

[0019] The voltage detection module is connected to the slave control unit of the battery module and / or the battery simulator, and is used to detect the voltage signal of the battery cell unit connected to the slave control unit;

[0020] The temperature detection module is connected to the slave control unit of the battery module and / or the battery simulator, and is used to detect the temperature signal of the temperature component of the slave control unit.

[0021] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the slave control unit further comprises:

[0022] a first terminal connected to the power supply terminal, the ground terminal and at least part of the cells connected in series;

[0023] A second terminal is connected to the temperature component and at least part of the cells connected in series.

[0024] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the first wiring terminal is connected with the power supply terminal, the ground terminal and at least part of the battery cells connected in series, further comprising:

[0025] The first end of the first wiring terminal is electrically connected to the power supply end;

[0026] The twelfth end of the first wiring terminal is electrically connected to the ground end;

[0027] The eleventh end of the first wiring terminal is electrically connected to the negative electrode of the first battery cell starting from the ground end;

[0028] The second end to the tenth end of the first wiring terminal are electrically connected to the positive electrodes of the first, third, fifth, seventh, ninth, eleventh, thirteenth, fifteenth and seventeenth battery cells starting from the ground end.

[0029] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the second terminal is connected to the temperature component and at least part of the battery cells connected in series, further comprising:

[0030] The temperature component includes:

[0031] A first temperature resistor having a first end and a second end;

[0032] a second temperature resistor having a first end and a second end;

[0033] a third temperature resistor having a first end and a second end;

[0034] a fourth temperature resistor having a first end and a second end;

[0035] a fifth temperature resistor having a first end and a second end, wherein:

[0036] The first end of the second wiring terminal is electrically connected to the first end of the first temperature resistor;

[0037] The second end of the second wiring terminal is electrically connected to the first end of the second temperature resistor;

[0038] The fourth end of the second wiring terminal is electrically connected to the first end of the third temperature resistor;

[0039] The third end of the second wiring terminal is electrically connected to the second ends of the first temperature resistor, the second temperature resistor and the third temperature resistor;

[0040] The fourteenth end of the second wiring terminal is electrically connected to the first end of the fourth temperature resistor;

[0041] The sixteenth end of the second wiring terminal is electrically connected to the first end of the fifth temperature resistor;

[0042] The fifteenth end of the second wiring terminal is electrically connected to the second ends of the fourth temperature resistor and the fifth temperature resistor;

[0043] The fifth end to the thirteenth end of the second wiring terminal are electrically connected to the positive electrodes of the second, fourth, sixth, eighth, tenth, twelfth, fourteenth, sixteenth and eighteenth battery cells starting from the ground end.

[0044] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the slave control unit further includes:

[0045] A third wiring terminal is used to connect the slave control unit to the main circuit loop.

[0046] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the battery cell unit of the battery simulator further includes:

[0047] A switching cell is used to replace the last cell from the ground end among the plurality of cells connected in series.

[0048] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the battery simulator is a battery simulator capable of performing cell switching.

[0049] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the battery simulator capable of performing cell switching further comprises:

[0050] A power switch having a first terminal and a second terminal;

[0051] a charging port having a first end and a second end, for charging the battery cell;

[0052] an analog switching unit, having a first end, a second end and a third end, for detecting whether the slave control unit operates normally;

[0053] a battery protection board having a B-terminal, a P-terminal and a plurality of battery cell terminals corresponding to the number of the plurality of battery cells connected in series, for preventing overcharging and over-discharging of the battery cells;

[0054] A power output port having a positive output terminal and a negative output terminal;

[0055] A safety resistor has a first end and a second end; wherein,

[0056] The negative electrode of the first battery cell among the plurality of battery cells connected in series starting from the ground terminal is connected to the ground terminal;

[0057] The negative electrode of the last battery cell from the ground terminal among the multiple battery cells connected in series is connected to the negative electrode of the switching battery cell, and the positive electrode is connected to the first terminal of the analog switching unit;

[0058] The positive electrode of the switching cell is connected to the second end of the analog switching unit;

[0059] The B-terminal is connected to the ground terminal, and the cell terminal is connected to the positive electrodes of the plurality of cells connected in series;

[0060] The first end of the power switch is connected to the power end, and the second end is connected to the third end of the analog switching unit;

[0061] The positive output terminal is connected to the first end of the fuse resistor, and the second end of the fuse resistor is connected to the first end of the power switch;

[0062] The first end of the charging port is connected to the negative output end, and the second end of the charging port is connected to the positive output end.

[0063] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the battery simulator capable of performing cell switching further comprises:

[0064] an instrument module having a first terminal, a second terminal and a third terminal, for displaying the input and output voltage and current status of the battery simulator;

[0065] The first end of the instrument module is connected to the negative output end, the second end is connected to the positive output end, and the third end is connected to the P-end.

[0066] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the module diagnostic device further comprises:

[0067] a control module, used for processing the detection results of the voltage detection module and the temperature detection module;

[0068] A charging port;

[0069] A voltage adjustment module; wherein,

[0070] The power supply assembly includes a power supply and a power switch;

[0071] The control module is connected to the voltage detection module and the temperature detection module;

[0072] The charging port is connected to the power supply;

[0073] The power supply is connected to the temperature detection module and the control module, and the power supply is connected to the voltage detection module through the voltage adjustment module;

[0074] The voltage detection module is connected to the first wiring terminal of the slave control unit, and is connected to the fifth end to the thirteenth end of the second wiring terminal of the slave control unit;

[0075] The temperature detection module is connected to the first end to the fourth end and the fourteenth end to the sixteenth end of the slave control unit.

[0076] In one embodiment of the electric vehicle module diagnostic platform of the utility model, the module diagnostic device further comprises:

[0077] A display module is connected to the power supply and the control module, and is used to display the detection result processed by the control module.

[0078] The utility model also discloses an electric vehicle power battery production line, comprising a battery cell production unit, a module assembly unit and a module testing unit. The battery cells produced by the battery cell production unit are transferred to the module assembly unit for assembly. The battery modules assembled by the module assembly unit are transferred to the module testing unit for testing. The module testing unit comprises any one of the above-mentioned electric vehicle module diagnostic platforms.

[0079] Through the electric vehicle module diagnostic platform disclosed by the above utility model, the battery simulator in the diagnostic platform solves the problems of complex functions, large size and inconvenience in carrying of the battery simulator; in addition, after using the battery simulator to replace the battery module and finding the problematic battery module, the module diagnostic device in the diagnostic platform solves the problem of needing to transfer the battery module to a professional testing bench for testing in order to locate the specific problem, which results in inconvenient actual operation and low efficiency.

[0080] In addition, the battery simulator in the diagnostic platform also has a cell switching function, which can detect whether there is any abnormality in the slave control unit of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] Figure 1 The present invention is a block diagram of the electric vehicle module diagnostic platform in one embodiment of the present invention.

[0082] Figure 2 FIG. 1 is a circuit diagram of a battery simulator in one embodiment of the utility model.

[0083] Figure 3 This is a schematic diagram of the connection circuit between the module diagnostic device and the battery module in one embodiment of the utility model.

[0084] Figure 4 This is a schematic diagram of a connection circuit between a module diagnostic device and a battery module in another embodiment of the present invention.

[0085] Figure 5 This is a schematic diagram of the connection circuit between the module diagnostic device and the battery simulator in one embodiment of the utility model.

[0086] Figure 6 The figure is a schematic block diagram of an electric vehicle power battery production line in one embodiment of the utility model.

[0087] Wherein, the reference numerals are:

[0088] 1: Module unit

[0089] 3: Module diagnostic device

[0090] 30: Power supply components

[0091] 31: Voltage detection module

[0092] 32: Temperature detection module

[0093] 34: Voltage adjustment module

[0094] 35: Control module

[0095] 36: Display module

[0096] 10: Battery module

[0097] 11, 21: Slave control unit

[0098] 12, 22: Battery cell

[0099] 13, 23: Temperature component

[0100] 20: Battery Simulator

[0101] 23: Battery protection board

[0102] 24: Instrument module

[0103] 25: Power output terminal

[0104] 26, 33: Charging port

[0105] 27: Fuse resistor

[0106] 28: Analog switching unit

[0107] 100: Electric vehicle module diagnostic platform

[0108] 200: Electric vehicle power battery production line

[0109] 210: Battery cell production unit

[0110] 220: Module assembly unit

[0111] 230: Module testing unit

[0112] R1: First temperature resistor

[0113] R2: Second temperature resistor

[0114] R3: The third temperature resistor

[0115] R4: The fourth temperature resistor

[0116] R5: Fifth temperature resistor

[0117] X1: First terminal

[0118] X2: Second terminal

[0119] BAT+: Positive output terminal

[0120] BAT-: Negative output terminal

[0121] SW1, SW2: Power switch

[0122] CELL: battery cell

[0123] Ground terminal: GND

[0124] Power supply: POWER

[0125] Power supply: VCC DETAILED DESCRIPTION

[0126] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and beneficial technical effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0127] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0128] Certain words are used in the specification and the appended claims to refer to specific components or parts. It should be understood by those skilled in the art that technical users or manufacturers may refer to the same component or part by different nouns or terms. This specification and the appended claims do not distinguish components or parts by differences in names, but by differences in functions.

[0129] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0130] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0131] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0132] Please refer to Figure 1 The utility model discloses an electric vehicle module diagnosis platform 100, comprising:

[0133] At least one module unit 1, comprising:

[0134] At least one battery module 10;

[0135] At least one battery simulator 20 is used to replace the battery module 10 and locate the failed battery module 10; wherein,

[0136] The battery module 10 and the battery simulator 20 respectively include slave control units 11, 21, battery cell units 12, 22 and temperature components 13, 23, wherein the slave control units 11, 21 are connected to the battery cell units 12, 22 and the temperature components 13, 23; wherein,

[0137] The battery cells 12 and 22 further include:

[0138] A ground terminal GND;

[0139] A power supply terminal POWER;

[0140] Multiple cells connected in series;

[0141] At least one module diagnostic device 3, comprising:

[0142] a power supply assembly 30;

[0143] A voltage detection module 31;

[0144] A temperature detection module 32; wherein,

[0145] The power supply component 30 is connected to the voltage detection module 31 and the temperature detection module 32;

[0146] The voltage detection module 31 is connected to the slave control units 11, 21 of the battery module 10 and / or the battery simulator 20, and is used to detect the voltage signals of the battery cells 12, 22 connected to the slave control units 11, 21;

[0147] The temperature detection module 32 is connected to the slave control units 11 , 21 of the battery module 10 and / or the battery simulator 20 , and is used to detect temperature signals of the temperature components 13 , 23 of the slave control units 11 , 21 .

[0148] exist Figure 1 In one embodiment of the utility model shown, the module unit 1 includes a plurality of battery modules 10 and a battery simulator 20. The plurality of battery modules 10 can be connected in series or in parallel or in a mixed connection of series and parallel. When one of the battery modules 10 fails, the battery simulator 20 can be used to quickly locate the failed battery module 10, and then the failed battery module 10 can be tested.

[0149] In one embodiment of the present invention, the module unit 1 includes a plurality of battery modules 10 and a plurality of battery simulators 20 . The battery simulators 20 can also replace a plurality of faulty battery modules 10 at the same time.

[0150] The module diagnostic device 3 can detect the voltage of the battery cells 12, 22 and the temperature of the temperature components 13, 23 in the battery module 10 or the battery simulator 20. One module diagnostic device 3 can only detect one battery module 10 or battery simulator 20 at the same time. If it is necessary to detect multiple battery modules 10 or battery simulators 20 at the same time, multiple module diagnostic devices 3 can be used to perform diagnostic tests simultaneously.

[0151] like Figure 2 and Figure 3 As shown, in an embodiment of the electric vehicle module diagnostic platform 100 of the utility model, the slave control unit further includes:

[0152] a first terminal X1 connected to the power terminal POWER, the ground terminal GND and at least some of the cells CELL connected in series;

[0153] A second terminal X2 is connected to the temperature components 13, 23 and at least some of the cells CELL connected in series.

[0154] In an embodiment of the electric vehicle module diagnostic platform 100 of the utility model, the first wiring terminal X1 is connected to the power terminal POWER, the ground terminal GND and at least part of the battery cell CELL, further comprising:

[0155] The first end of the first wiring terminal X1 is electrically connected to the power supply end POWER;

[0156] The twelfth terminal of the first wiring terminal X1 is electrically connected to the ground terminal GND;

[0157] The eleventh end of the first wiring terminal X1 is electrically connected to the negative electrode of the first cell CELL starting from the ground terminal GND;

[0158] The second end to the tenth end of the first wiring terminal X1 are electrically connected to the positive electrodes of the first, third, fifth, seventh, ninth, eleventh, thirteenth, fifteenth and seventeenth battery cells CELL starting from the ground terminal GND.

[0159] In an embodiment of the electric vehicle module diagnostic platform 100 of the utility model, the second terminal X2 is connected to the temperature components 13, 23 and at least part of the battery cells CELL and further includes:

[0160] The temperature components 13, 23 include:

[0161] A first temperature resistor R1 having a first end and a second end;

[0162] A second temperature resistor R2 having a first end and a second end;

[0163] A third temperature resistor R3 having a first end and a second end;

[0164] a fourth temperature resistor R4 having a first end and a second end;

[0165] A fifth temperature resistor R5 has a first end and a second end, wherein:

[0166] The first end of the second wiring terminal X2 is electrically connected to the first end of the first temperature resistor R1;

[0167] The second end of the second wiring terminal X2 is electrically connected to the first end of the second temperature resistor R2;

[0168] The fourth end of the second wiring terminal X2 is electrically connected to the first end of the third temperature resistor R3;

[0169] The third end of the second wiring terminal X2 is electrically connected to the second ends of the first temperature resistor R1, the second temperature resistor R2 and the third temperature resistor R3;

[0170] The fourteenth end of the second wiring terminal X2 is electrically connected to the first end of the fourth temperature resistor R4;

[0171] The sixteenth end of the second wiring terminal X2 is electrically connected to the first end of the fifth temperature resistor R5;

[0172] The fifteenth end of the second wiring terminal X2 is electrically connected to the second ends of the fourth temperature resistor and the fifth temperature resistor;

[0173] The fifth end to the thirteenth end of the second wiring terminal X2 are electrically connected to the positive electrodes of the second, fourth, sixth, eighth, tenth, twelfth, fourteenth, sixteenth and eighteenth battery cells CELL starting from the ground terminal GND.

[0174] In an embodiment of the electric vehicle module diagnostic platform 100 of the utility model, the slave control units 11 and 21 further include:

[0175] A third terminal is used to connect the slave control units 11, 21 to the main circuit loop.

[0176] like Figure 2 As shown, in an embodiment of the electric vehicle module diagnostic platform 100 of the utility model, the battery cell unit 22 of the battery simulator 20 further includes:

[0177] A switching cell is used to replace the last cell CELL starting from the ground terminal GND among the plurality of serially connected cells CELL.

[0178] In one embodiment of the electric vehicle module diagnosis platform 100 of the present invention, the battery simulator 20 is a battery simulator 20 capable of performing cell switching.

[0179] In one embodiment of the electric vehicle module diagnostic platform 100 of the utility model, the battery simulator 20 capable of performing cell switching further comprises:

[0180] A power switch SW1 having a first terminal and a second terminal;

[0181] a charging port 26 having a first end and a second end, for charging the battery cell 22;

[0182] An analog switching unit 28, having a first end, a second end and a third end, for detecting whether the slave control units 11, 21 are working normally;

[0183] A battery protection board 23, having a B-terminal, a P-terminal and a plurality of cell terminals corresponding to the number of the plurality of cells connected in series, for preventing the cells from being overcharged and over-discharged;

[0184] A power output terminal 25, having a positive output terminal BAT+ and a negative output terminal BAT-;

[0185] A safety resistor 27 has a first end and a second end; wherein,

[0186] The negative electrode of the first battery cell among the plurality of battery cells CELL connected in series starting from the ground terminal GND is connected to the ground terminal;

[0187] The negative electrode of the last cell in the plurality of cells connected in series starting from the ground terminal GND is connected to the negative electrode of the switching cell, and the positive electrode is connected to the first end of the analog switching unit 28;

[0188] The positive electrode of the switching cell is connected to the second end of the analog switching unit 28;

[0189] The B-terminal is connected to the ground terminal, and the cell terminal is connected to the positive electrodes of the plurality of cells CELL connected in series;

[0190] The first end of the power switch SW1 is connected to the power terminal POWER, and the second end is connected to the third end of the analog switching unit 28;

[0191] The positive output terminal BAT+ is connected to the first end of the fuse resistor 27, and the second end of the fuse resistor 27 is connected to the first end of the power switch SW1;

[0192] A first end of the charging port 26 is connected to the negative output terminal BAT−, and a second end of the charging port 26 is connected to the positive output terminal BAT+.

[0193] In one embodiment of the electric vehicle module diagnostic platform 100 of the utility model, the battery simulator 20 capable of performing cell switching further comprises:

[0194] a meter module 24 having a first terminal, a second terminal and a third terminal, for displaying the input and output voltage and current status of the battery simulator 20;

[0195] The first end of the instrument module 24 is connected to the negative output terminal BAT-, the second end is connected to the positive output terminal BAT+, and the third end is connected to the P-terminal.

[0196] like Figure 3 As shown, in an embodiment of the electric vehicle module diagnosis platform 100 of the utility model, the module diagnosis device 3 further includes:

[0197] a control module 35, used to process the detection results of the voltage detection module 31 and the temperature detection module 32;

[0198] a charging port 33;

[0199] A voltage adjustment module 34; wherein,

[0200] The power supply assembly 30 includes a power supply VCC and a power switch SW2;

[0201] The control module 35 is connected to the voltage detection module 31 and the temperature detection module 32;

[0202] The charging port 33 is connected to the power supply VCC;

[0203] The power supply is connected to the temperature detection module 32 and the control module 35, and the power supply VCC is connected to the voltage detection module 31 through the voltage adjustment module 34;

[0204] The voltage detection module 31 is connected to the first wiring terminal X1 of the slave control unit 11, 21, and is connected to the fifth end to the thirteenth end of the second wiring terminal X2 of the slave control unit 11, 21;

[0205] The temperature detection module 32 is connected to the first end to the fourth end and the fourteenth end to the sixteenth end of the slave control units 11 and 21 .

[0206] like Figure 4 As shown, in an embodiment of the electric vehicle module diagnosis platform 100 of the utility model, the module diagnosis device 3 further includes:

[0207] A display module 36 is connected to the power supply VCC and the control module 35 and is used to display the detection result processed by the control module 35 .

[0208] Specifically, the module diagnostic device 3 and the battery module 10 are connected through the first terminal X1 and the second terminal X2. The module diagnostic device 3 can detect the battery cell units of the battery module 10 through the voltage detection module 31 and the temperature detection module 32, and obtain the voltage and temperature data of each battery cell CELL in the battery cell units. After calculation and processing by the control module 35, the data is displayed on the display module 36, so that the data of each battery cell CELL of the battery cell unit of the battery module 10 can be quickly obtained and displayed.

[0209] Those skilled in the art should be aware that in the above-mentioned embodiment of the present invention, the number of battery cells connected in series is eighteen, and the number of battery cells connected in series may also be increased or decreased according to actual conditions by making corresponding changes to the first terminal X1, the second terminal X2 of the control unit 11, 21, and the terminal of the voltage detection module.

[0210] like Figure 5 As shown, Figure 5The schematic diagram of the circuit connection between the module diagnostic device 3 and the battery simulator 20 in one embodiment of the utility model. In actual use, the battery module 10 is replaced with the battery simulator 20. If the main circuit of the battery module 10 is blocked before the replacement, the main circuit is restored after the replacement with the battery simulator 20, and the abnormal battery module 10 is located. Then, the module diagnostic device 3 is connected to the replaced battery module 10 to detect the state of the battery cell unit of the abnormal battery module 10, and the data of each battery cell of the battery cell unit of the battery module 10 is quickly obtained and displayed to accurately locate the problem.

[0211] The function of the simulation switching unit 28 in the battery simulator 20 is that the module diagnostic device 3 is connected to the battery simulator 20, and different channels are selected by the simulation switching unit 28. The last battery cell CELL in multiple battery cells connected in series can be switched. Whether the module diagnostic device 3 can detect the status of the battery cell unit normally, it can be detected whether the slave control units 11 and 21 are working normally.

[0212] like Figure 6 As shown, Figure 6 The block diagram of an electric vehicle power battery production line in one embodiment of the utility model is shown. The utility model also discloses an electric vehicle power battery production line 200, including a battery cell production unit 210, a module assembly unit 220 and a module testing unit 230. The battery cells produced by the battery cell production unit 210 are transferred to the module assembly unit 220 for assembly. The battery modules 10 assembled by the module assembly unit 220 are transferred to the module testing unit 230 for testing. The module testing unit 230 includes any one of the above-mentioned electric vehicle module diagnostic platforms 100.

[0213] Through the electric vehicle module diagnostic platform 100 disclosed by the above-mentioned utility model, the battery simulator 20 in the diagnostic platform solves the problems that the battery simulator 20 has complex functions, large size, and is not easy to carry; in addition, after using the battery simulator 20 to replace the battery module 10 and finding the problematic battery module 10, the module diagnostic device 3 in the diagnostic platform solves the problem that the battery module 10 needs to be transferred to a professional testing bench for testing in order to locate the specific problem, which makes the actual operation inconvenient and inefficient.

[0214] In addition, the battery simulator 20 in the diagnostic platform also has a cell switching function, which can detect whether there is an abnormality in the slave control units 11 and 21 of the battery module 10.

[0215] In summary, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can evolve various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the patent applied for the present invention.

Claims

1. An electric vehicle module diagnostic platform, characterized in that: include: At least one module unit, including: at least one battery module; At least one battery simulator, used to replace the battery module and locate the failed battery module; wherein, The battery module and the battery simulator each include a slave control unit, a battery cell unit and a temperature component, and the slave control unit is connected to the battery cell unit and the temperature component; wherein, The battery cell unit further comprises: One end of the land; a power supply terminal; A plurality of battery cells connected in series; At least one module diagnostic device, comprising: a power supply assembly; A voltage detection module; A temperature detection module; wherein, The power supply component is connected to the voltage detection module and the temperature detection module; The voltage detection module is connected to the slave control unit of the battery module and / or the battery simulator, and is used to detect the voltage signal of the battery cell unit connected to the slave control unit; The temperature detection module is connected to the slave control unit of the battery module and / or the battery simulator, and is used to detect the temperature signal of the temperature component of the slave control unit.

2. The electric vehicle module diagnostic platform according to claim 1, characterized in that: The slave control unit further comprises: a first terminal connected to the power supply terminal, the ground terminal and at least part of the cells connected in series; A second terminal is connected to the temperature component and at least part of the cells connected in series.

3. The electric vehicle module diagnostic platform according to claim 2, characterized in that: The first terminal is connected to the power supply terminal, the ground terminal and at least part of the battery cells connected in series, further comprising: The first end of the first wiring terminal is electrically connected to the power supply end; The twelfth end of the first wiring terminal is electrically connected to the ground end; The eleventh end of the first wiring terminal is electrically connected to the negative electrode of the first battery cell starting from the ground end; The second end to the tenth end of the first wiring terminal are electrically connected to the positive electrodes of the first, third, fifth, seventh, ninth, eleventh, thirteenth, fifteenth and seventeenth battery cells starting from the ground end.

4. The electric vehicle module diagnostic platform according to claim 2, characterized in that: The second terminal is connected to the temperature component and at least part of the cells connected in series and further comprises: The temperature component includes: A first temperature resistor having a first end and a second end; a second temperature resistor having a first end and a second end; a third temperature resistor having a first end and a second end; a fourth temperature resistor having a first end and a second end; a fifth temperature resistor having a first end and a second end, wherein: The first end of the second wiring terminal is electrically connected to the first end of the first temperature resistor; The second end of the second wiring terminal is electrically connected to the first end of the second temperature resistor; The fourth end of the second wiring terminal is electrically connected to the first end of the third temperature resistor; The third end of the second wiring terminal is electrically connected to the second ends of the first temperature resistor, the second temperature resistor and the third temperature resistor; The fourteenth end of the second wiring terminal is electrically connected to the first end of the fourth temperature resistor; The sixteenth end of the second wiring terminal is electrically connected to the first end of the fifth temperature resistor; The fifteenth end of the second wiring terminal is electrically connected to the second ends of the fourth temperature resistor and the fifth temperature resistor; The fifth end to the thirteenth end of the second wiring terminal are electrically connected to the positive electrodes of the second, fourth, sixth, eighth, tenth, twelfth, fourteenth, sixteenth and eighteenth battery cells starting from the ground end.

5. The electric vehicle module diagnostic platform according to claim 4, characterized in that: The slave control unit also includes: A third wiring terminal is used to connect the slave control unit to the main circuit loop.

6. The electric vehicle module diagnostic platform according to claim 1, characterized in that: The battery cell unit of the battery simulator also includes: A switching cell is used to replace the last cell from the ground end among the plurality of cells connected in series.

7. The electric vehicle module diagnostic platform according to claim 6, characterized in that: The battery simulator is a battery simulator capable of performing cell switching.

8. The electric vehicle module diagnostic platform according to claim 7, characterized in that: The battery simulator capable of performing cell switching further comprises: A power switch having a first terminal and a second terminal; a charging port having a first end and a second end, for charging the battery cell unit; an analog switching unit, having a first end, a second end and a third end, for detecting whether the slave control unit operates normally; a battery protection board having a B-terminal, a P-terminal and a plurality of battery cell terminals corresponding to the number of the plurality of battery cells connected in series, for preventing the battery cells from being overcharged and over-discharged; A power output port having a positive output terminal and a negative output terminal; A safety resistor has a first end and a second end; wherein, The negative electrode of the first battery cell among the plurality of battery cells connected in series starting from the ground terminal is connected to the ground terminal; The negative electrode of the last battery cell from the ground terminal among the multiple battery cells connected in series is connected to the negative electrode of the switching battery cell, and the positive electrode is connected to the first terminal of the analog switching unit; The positive electrode of the switching cell is connected to the second end of the analog switching unit; The B-terminal is connected to the ground terminal, and the cell terminal is connected to the positive electrodes of the plurality of cells connected in series; The first end of the power switch is connected to the power end, and the second end is connected to the third end of the analog switching unit; The positive output terminal is connected to the first end of the fuse resistor, and the second end of the fuse resistor is connected to the first end of the power switch; The first end of the charging port is connected to the negative output end, and the second end of the charging port is connected to the positive output end.

9. The electric vehicle module diagnostic platform according to claim 8, characterized in that: The battery simulator capable of performing cell switching further comprises: an instrument module having a first terminal, a second terminal and a third terminal, for displaying the input and output voltage and current status of the battery simulator; The first end of the instrument module is connected to the negative output end, the second end is connected to the positive output end, and the third end is connected to the P-end.

10. The electric vehicle module diagnostic platform according to claim 4, characterized in that: The module diagnostic device also includes: a control module, used for processing the detection results of the voltage detection module and the temperature detection module; A charging port; A voltage adjustment module; wherein, The power supply assembly includes a power supply and a power switch; The control module is connected to the voltage detection module and the temperature detection module; The charging port is connected to the power supply; The power supply is connected to the temperature detection module and the control module, and the power supply is connected to the voltage detection module through the voltage adjustment module; The voltage detection module is connected to the first wiring terminal of the slave control unit, and is connected to the fifth end to the thirteenth end of the second wiring terminal of the slave control unit; The temperature detection module is connected to the first end to the fourth end and the fourteenth end to the sixteenth end of the slave control unit.

11. The electric vehicle module diagnostic platform according to claim 10, characterized in that: The module diagnostic device also includes: A display module is connected to the power supply and the control module, and is used to display the detection result processed by the control module.

12. An electric vehicle power battery production line, comprising a battery cell production unit, a module assembly unit and a module testing unit, wherein the battery cells produced by the battery cell production unit are transferred to the module assembly unit for assembly, and the battery modules assembled by the module assembly unit are transferred to the module testing unit for testing, characterized in that: The module testing unit comprises an electric vehicle module diagnostic platform as described in any one of claims 1 to 11.

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