Secondary single battery control device

Abstract

The utility model discloses a secondary single battery control device. The device comprises a positive pole, a negative pole, a control switching module, a positive switch module, a negative switch module, a positive switching piece, a negative switching piece and a battery core package, the control switching module is respectively connected with the positive switch module and the negative switch module, the positive switch module is connected with the positive switching piece, and the negative switch module is connected with the negative switching piece. The anode switch module is connected with the anode adapter plate, the cathode switch module is connected with the cathode adapter plate, the anode adapter plate is connected with a core package anode lug on a battery core package, the cathode adapter plate is connected with a core package cathode lug on the battery core package, the anode pole is connected with the anode switch module, the cathode pole is connected with the cathode switch module, and the switch modules are controlled through the connection relation of the components. The circuit on-off and the current direction between each battery pole and a core package tab are controlled, the charging and discharging control requirements of the single batteries are met, and the battery marshalling is adjusted through the connection relation of the switch modules in each single battery according to the voltage and capacity requirements of various scenes.

Description

Technical Field

[0001] One or more embodiments of the present specification relate to the field of battery technology, and in particular, to a secondary single-cell battery control device. Background Art

[0002] Existing single-cell batteries are often used in battery control devices for series grouping. However, when connected to a battery grouping module, existing single-cell devices are often grouped using corresponding pole connection methods. After grouping, the battery management system controls the charging and discharging of the battery group by controlling the series relays in the circuit. Because the series relays can only control the overall circuit on and off, this control method is inflexible and can only output a single total voltage, which cannot meet the needs of multiple devices with different voltage levels. It can also only output a single capacity configuration, which cannot flexibly adjust the grouping capacity and cannot meet the capacity requirements of various usage scenarios. Utility Model Content

[0003] To solve the above problems, one or more embodiments of this specification describe a secondary single-cell battery control device.

[0004] According to a first aspect, a BMS single-cell control device is provided, the device comprising: a positive electrode column, a negative electrode column, a control adapter module, a positive switch module, a negative switch module, a positive adapter plate, a negative adapter plate, and a battery core pack, the control adapter module being connected to the positive switch module and the negative switch module respectively, the positive switch module being connected to the positive adapter plate, the negative switch module being connected to the negative adapter plate, the positive adapter plate being connected to the positive tab on the battery core pack, the negative adapter plate being connected to the negative tab on the battery core pack, the positive electrode column being connected to the positive switch module, and the negative electrode column being connected to the negative switch module;

[0005] The control adapter module is used to receive the control signal sent by the external battery BMS and forward the control signal to the positive switch module and the negative switch module respectively;

[0006] The positive switch module is used to control the circuit on / off and current direction between the positive electrode column and the core package positive electrode tab;

[0007] The negative electrode switch module is used to control the circuit on / off and current direction between the negative electrode column and the core package negative electrode ear.

[0008] Preferably, the positive switch module is provided with a positive charge switch module and a positive discharge switch module connected in parallel, and the negative switch module is provided with a negative charge switch module and a negative discharge switch module connected in parallel, and each of the positive charge switch module, the positive discharge switch module, the negative charge switch module, and the negative discharge switch module is provided with an insulated gate bipolar transistor and a diode;

[0009] The first port of each switch module is connected to the anode of the diode, the cathode of the diode is connected to the collector of the insulated gate bipolar transistor, the second port of each switch module is connected to the emitter of the insulated gate bipolar transistor, and the third port of each switch module is connected to the gate of the insulated gate bipolar transistor.

[0010] Preferably, the positive electrode adapter is connected to the first port of the positive electrode discharge switch module and the second port of the positive electrode charge switch module respectively, and the positive electrode column is connected to the second port of the positive electrode discharge switch module and the first port of the positive electrode charge switch module respectively;

[0011] The negative electrode adapter is respectively connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charge switch module, and the negative electrode column is respectively connected to the first port of the negative electrode discharge switch module and the second port of the negative electrode charge switch module.

[0012] Preferably, the control adapter module is provided with a discharge gate conductive block, and the discharge gate conductive block is connected to the third port of the positive discharge switch module and the third port of the negative discharge switch module respectively through a flexible circuit board;

[0013] The discharge gate conductive block is used to forward a first discharge conduction voltage to the third ports of the positive discharge switch module and the negative discharge switch module.

[0014] Preferably, the control adapter module is provided with a discharge emitter conductive block, and the discharge emitter conductive block is connected to the second port of the positive discharge switch module and the second port of the negative discharge switch module respectively through a flexible circuit board;

[0015] The discharge emitter conductive block is used to forward the second discharge conduction voltage to the second ports of the positive discharge switch module and the negative discharge switch module.

[0016] Preferably, the control adapter module is provided with a charging gate conductive block, and the charging gate conductive block is connected to the third port of the positive charging switch module and the third port of the negative charging switch module respectively through a flexible circuit board;

[0017] The charging gate conductive block is used to forward a first charging conduction voltage to the third ports of the positive charging switch module and the negative charging switch module.

[0018] Preferably, the control adapter module is provided with a charging emitter conductive block, and the charging emitter conductive block is respectively connected to the second port of the positive charging switch module and the second port of the negative charging switch module through a flexible circuit board;

[0019] The charging emitter conductive block is used to forward the second charging conduction voltage to the second ports of the positive charging switch module and the negative charging switch module.

[0020] Preferably, the control adapter module is provided with a positive electrode voltage detection module and a negative electrode voltage detection module, and the positive electrode voltage detection module and the negative electrode voltage detection module are used to sample the voltage of the battery core pack and transmit the voltage to the battery BMS.

[0021] Preferably, the positive electrode voltage detection module is connected to the first port of the positive electrode discharge switch module and the second port of the positive electrode charging switch module respectively through a flexible circuit board, and the negative electrode voltage detection module is connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charging switch module respectively through a flexible circuit board.

[0022] The device provided in the embodiment of this specification is provided by arranging a positive pole column, a negative pole column, a control adapter module, a positive switch module, a negative switch module, a positive adapter sheet, a negative adapter sheet and a battery core pack in a single battery, and connecting the control adapter module to the positive switch module and the negative switch module respectively, the positive switch module to the positive adapter sheet, the negative switch module to the negative adapter sheet, the positive adapter sheet to the positive ear of the battery core pack, the negative adapter sheet to the negative ear of the battery core pack, the positive pole column to the positive switch module, the negative pole column to the negative switch module, and receiving the control instruction transmitted by the external battery BMS At this time, each switch module is controlled by the connection relationship of the above components, thereby further controlling the circuit on-off and current direction between each battery pole and the core pack tab, so as to achieve the charge and discharge control requirements of the single cell, and the battery BMS can be used to group the set single cells. According to the voltage and capacity requirements of the actual scenario, the battery grouping is adjusted through the connection relationship of the switch modules in each single cell to meet the voltage and capacity requirements of various usage scenarios, and the positive electrode voltage detection module and the negative electrode voltage detection module set in the single cell control device are used to collect the voltage parameters of the battery core pack in each single cell in real time, so as to achieve sampling continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a connection diagram of a secondary single-cell battery control device in one embodiment of this specification;

[0025] Figure 2 This is a connection diagram of a battery module in one embodiment of this specification;

[0026] Figure 3 This is an equivalent connection diagram of a battery module in one embodiment of this specification;

[0027] Figure 4 This is another equivalent connection diagram of a battery module in one embodiment of this specification;

[0028] Figure 5 This is a schematic structural diagram of a single cell in one embodiment of this specification;

[0029] Figure 6 This is a schematic structural diagram of a top cover of a single cell according to one embodiment of the present specification from one perspective;

[0030] Figure 7 is a structural schematic diagram of a top cover of a single cell in one embodiment of this specification from another perspective;

[0031] Figure 8 Schematic diagram of an explosion of a top cover of a single cell in one embodiment of this specification. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0033] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application. Different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, even though the embodiment may not be clearly described in the following text.

[0034] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the elements described without departing from the scope of the present application. Various examples may appropriately omit, replace, or add various processes or components. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted, or combined. In addition, features described in some examples may be combined in other examples.

[0035] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of a secondary single-cell battery control device in one embodiment of this specification. In this embodiment of the application, the device includes: a positive electrode column, a negative electrode column, a control adapter module, a positive switch module, a negative switch module, a positive adapter plate, a negative adapter plate, and a battery core pack. The control adapter module is connected to the positive switch module and the negative switch module respectively. The positive switch module is connected to the positive adapter plate, the negative switch module is connected to the negative adapter plate, the positive adapter plate is connected to the positive tab on the battery core pack, the negative adapter plate is connected to the negative tab on the battery core pack, the positive electrode column is connected to the positive switch module, and the negative electrode column is connected to the negative switch module.

[0036] The control adapter module is used to receive the control signal sent by the external battery BMS and forward the control signal to the positive switch module and the negative switch module respectively;

[0037] The positive switch module is used to control the circuit on / off and current direction between the positive electrode column and the core package positive electrode tab;

[0038] The negative electrode switch module is used to control the circuit on / off and current direction between the negative electrode column and the core package negative electrode ear.

[0039] In the embodiments of this specification, Figure 1As shown, the secondary single-cell control device includes a positive electrode post, a negative electrode post, a control adapter module, a positive switch module, a negative switch module, a positive adapter plate, a negative adapter plate, and a battery cell pack. The control adapter module is connected to the positive switch module and the negative switch module, respectively. The battery cell pack is provided with a positive tab and a negative tab. The positive tab is connected to the positive adapter plate, and the negative tab is connected to the negative adapter plate. The positive switch module has one end connected to the positive adapter plate and the other end connected to the positive electrode post. The negative switch module has one end connected to the negative adapter plate and the other end connected to the negative electrode post. One end of the control adapter module can be externally connected to a battery management system (BMS), receiving control signals from the BMS and forwarding the control signals to the positive switch module and the negative switch module. The positive electrode adapter plate provided between the positive electrode switch module and the core package positive electrode tab is used to connect the circuit between the two and carry the current. The negative electrode adapter plate provided between the negative electrode switch module and the core package negative electrode tab is used to connect the circuit between the two and carry the current. The positive electrode switch module provided between the positive electrode post and the positive electrode adapter plate can be used to control the circuit on / off and current direction between the two, thereby controlling the circuit on / off and current direction between the positive electrode post and the core package positive electrode tab. The negative electrode switch module provided between the negative electrode post and the negative electrode adapter plate can be used to control the circuit on / off and current direction between the two, thereby controlling the circuit on / off and current direction between the negative electrode post and the core package negative electrode tab.

[0040] As an example, when using the control device to control the charge and discharge of a single battery, a control signal can be first issued through an external battery BMS. Then, after receiving the control signal, the control adapter module connected to the battery BMS forwards it to the positive switch module and the negative switch module. When the control signal is a discharge signal, the circuit between the positive electrode post and the positive tab of the core package is controlled to be conductive, and the current between the two flows from the positive tab of the core package to the controlled positive electrode post. The circuit between the negative electrode post and the negative tab of the core package is controlled to be conductive, and the current between the two flows from the negative electrode post to the negative tab of the core package, thereby realizing the discharge process of the single battery. When the control signal is a charge signal, the circuit between the positive electrode post and the positive tab of the core package is controlled to be conductive, and the current between the two flows from the positive electrode post to the positive tab of the core package. The circuit between the negative electrode post and the negative tab of the core package is controlled to be conductive, and the current between the two flows from the negative tab of the core package to the negative electrode post, thereby realizing the charging process of the single battery.

[0041] In one embodiment, the positive switch module is provided with a positive charge switch module and a positive discharge switch module connected in parallel, and the negative switch module is provided with a negative charge switch module and a negative discharge switch module connected in parallel, and each of the positive charge switch module, the positive discharge switch module, the negative charge switch module, and the negative discharge switch module is provided with an insulated gate bipolar transistor and a diode;

[0042] The first port of each switch module is connected to the anode of the diode, the cathode of the diode is connected to the collector of the insulated gate bipolar transistor, the second port of each switch module is connected to the emitter of the insulated gate bipolar transistor, and the third port of each switch module is connected to the gate of the insulated gate bipolar transistor.

[0043] In the embodiments of this specification, in order to realize the control of the circuit on / off and current direction between each battery pole and the core package tab by the positive switch module and the negative switch module, the positive adapter is connected to the positive switch module and the core package positive tab, and the negative adapter is connected to the negative switch module and the core package negative tab. A positive charge switch module and a positive discharge switch module connected in parallel to each other can be provided in the positive switch module, and a negative charge switch module and a negative discharge switch module connected in parallel to each other can be provided in the negative switch module. In which, each independently provided independent switch module is provided with an insulated gate bipolar transistor and a diode, and the cathode of the diode is connected to the collector of the insulated gate bipolar transistor. The connection port to the anode of the diode is defined as the first port of each switch module, the connection port to the emitter of the insulated gate bipolar transistor is defined as the second port of each switch module, and the connection port to the gate of the insulated gate bipolar transistor is defined as the third port of each switch module. Optionally, the on / off control of the circuit and the direction of the current can be achieved through the connection relationship between the first port, the second port and the third port in each switch module between each battery pole and the adapter plate, and the connection relationship between each adapter plate and the core package tab.

[0044] Among them, the insulated gate bipolar transistors can be Infineon IGBT-FF600R12KE4 (600V, 600A), Mitsubishi IGBT-PM75RL1A060 (600V, 75A), Fuji IGBT-2MBI300X-060 (600V, 300A) and Toshiba IGBT-G50N2H3 (1200V, 50A). The diodes can be Infineon diode-FF200R12KE3 (1200V, 200A), Vishay diode-VS-40CP12P (1200V, 40A), ON Semiconductor diode-MUR460 (600V, 4A), Diodes Inc. diode-1N5408 (1000V, 3A) and STMicroelectronics diode. Diodes - Models such as STTH30R06 (600V, 30A).

[0045] In one embodiment, the positive electrode adapter is respectively connected to the first port of the positive discharge switch module and the second port of the positive charge switch module, and the positive electrode column is respectively connected to the second port of the positive discharge switch module and the first port of the positive charge switch module;

[0046] The negative electrode adapter is respectively connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charge switch module, and the negative electrode column is respectively connected to the first port of the negative electrode discharge switch module and the second port of the negative electrode charge switch module.

[0047] In an embodiment of the present specification, when a positive discharge switch module and a positive discharge switch module are arranged between the positive electrode adapter and the positive electrode column, the first port of the positive discharge switch module can be connected to the positive electrode adapter, and the second port of the positive discharge switch module can be connected to the positive electrode column, and the second port of the positive charge switch module can be connected to the positive electrode adapter, and the first port of the positive charge switch module can be connected to the positive electrode column.

[0048] When a negative electrode discharge switch module and a negative electrode discharge switch module are arranged between the negative electrode adapter and the negative electrode pole, the second port of the negative electrode discharge switch module can be connected to the negative electrode adapter, and the first port of the negative electrode discharge switch module can be connected to the negative electrode pole, and the second port of the negative electrode charge switch module can be connected to the negative electrode adapter, and the second port of the negative electrode charge switch module can be connected to the negative electrode pole.

[0049] In one embodiment, the control adapter module is provided with a discharge gate conductive block, and the discharge gate conductive block is respectively connected to the third port of the positive discharge switch module and the third port of the negative discharge switch module through a flexible circuit board;

[0050] The discharge gate conductive block is used to forward a first discharge conduction voltage to the third ports of the positive discharge switch module and the negative discharge switch module.

[0051] In the embodiments of this specification, to transmit control signals through the control adapter module, a discharge gate conductive block can be provided in the control adapter module and connected to the third port of the positive discharge switch module and the third port of the negative discharge switch module, respectively, via a flexible printed circuit conductive medium. Typically, the flexible printed circuit board can be made of copper foil or other conductive metal polymers.

[0052] When the control adapter module receives the discharge control signal transmitted by the battery BMS, the discharge gate conductive block forwards the first discharge conduction voltage to the third ports of the positive discharge switch module and the negative discharge switch module through the flexible circuit board.

[0053] In one embodiment, the control adapter module is provided with a discharge emitter conductive block, and the discharge emitter conductive block is respectively connected to the second port of the positive discharge switch module and the second port of the negative discharge switch module through a flexible circuit board;

[0054] The discharge emitter conductive block is used to forward the second discharge conduction voltage to the second ports of the positive discharge switch module and the negative discharge switch module.

[0055] In the embodiment of this specification, a discharge emitter conductive block can be provided in the control adapter module, and the discharge emitter conductive block is connected to the second port of the positive discharge switch module and the second port of the negative discharge switch module respectively through a flexible circuit board.

[0056] When the control adapter module receives the discharge control signal transmitted by the battery BMS, the discharge emitter conductive block forwards the second discharge conduction voltage to the second ports of the positive discharge switch module and the negative discharge switch module through the flexible circuit board.

[0057] Optionally, when the third ports of the positive discharge switch module and the negative discharge switch module simultaneously receive the first discharge conduction voltage, and the second ports of the positive discharge switch module and the negative discharge switch module simultaneously receive the second discharge conduction voltage, the insulated gate bipolar transistors in the positive discharge switch module and the negative discharge switch module are in the on state, and the battery remains in the discharge state.

[0058] In one embodiment, the control adapter module is provided with a charging gate conductive block, and the charging gate conductive block is connected to the third port of the positive charging switch module and the third port of the negative charging switch module respectively through a flexible circuit board;

[0059] The charging gate conductive block is used to forward a first charging conduction voltage to the third ports of the positive charging switch module and the negative charging switch module.

[0060] In the embodiment of this specification, a charging gate conductive block can be set in the control adapter module, and the charging gate conductive block is connected to the third port of the positive charging switch module and the third port of the negative charging switch module respectively through a flexible circuit board.

[0061] When the control adapter module receives the charging control signal transmitted by the battery BMS, the charging gate conductive block forwards the first charging conduction voltage to the third ports of the positive charging switch module and the negative charging switch module through the flexible circuit board.

[0062] In one embodiment, the control adapter module is provided with a charging emitter conductive block, and the charging emitter conductive block is respectively connected to the second port of the positive charging switch module and the second port of the negative charging switch module through a flexible circuit board;

[0063] The charging emitter conductive block is used to forward the second charging conduction voltage to the second ports of the positive charging switch module and the negative charging switch module.

[0064] In the embodiment of this specification, a charging emitter conductive block can be set in the control adapter module, and the charging emitter conductive block is connected to the second port of the positive charging switch module and the second port of the negative charging switch module respectively through a flexible circuit board.

[0065] When the control adapter module receives the charging control signal transmitted by the battery BMS, the charging emitter conductive block forwards the second charging conduction voltage to the second ports of the positive charging switch module and the negative charging switch module through the flexible circuit board.

[0066] Optionally, when the third ports of the positive charging switch module and the negative charging switch module simultaneously receive the first charging conduction voltage, and the second ports of the positive charging switch module and the negative charging switch module simultaneously receive the second charging conduction voltage, the insulated gate bipolar transistors in the positive charging switch module and the negative charging switch module are in the on state, and the battery remains in the charging state.

[0067] In one embodiment, the control adapter module is provided with a positive electrode voltage detection module and a negative electrode voltage detection module, and the positive electrode voltage detection module and the negative electrode voltage detection module are used to sample the voltage of the battery core pack and transmit the voltage to the battery BMS.

[0068] In the embodiments of this specification, in order to collect the real-time voltage of the battery cell pack in the single cell, a positive electrode voltage detection module and a negative electrode voltage detection module can be respectively set in the control adapter module. By connecting each voltage detection module to each adapter plate, and each adapter plate to each core pack tab, the voltage between each core pack tab is sampled, and the voltage is transmitted to the battery BMS through each voltage detection module.

[0069] In one embodiment, the positive electrode voltage detection module is connected to the first port of the positive electrode discharge switch module and the second port of the positive electrode charging switch module through a flexible circuit board, and the negative electrode voltage detection module is connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charging switch module through a flexible circuit board.

[0070] In an embodiment of this specification, a positive electrode voltage detection module provided in the control adapter module is connected to the first port of the positive electrode discharge switch module and the second port of the positive electrode charge switch module, respectively, via a flexible circuit board. A negative electrode voltage detection module is also connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charge switch module, respectively, via a flexible circuit board. As an example, when the positive electrode voltage detection module is connected to the first port of the positive electrode discharge switch module and the second port of the positive electrode charge switch module, respectively, and the negative electrode voltage detection module is connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charge switch module, respectively, the sampled voltages can be transmitted to the battery management system (BMS), allowing the battery management system to monitor the internal voltages of the individual cells in real time, both when the switch modules are conducting and when they are not conducting.

[0071] As an example, a plurality of secondary battery cell control devices can be grouped to form a battery module, such as Figure 2As shown in the figure, 8 single cells are used to form a battery module, and all of them are externally connected to the same battery BMS. Assuming that the voltage of a single cell is a V and the capacity is b Ah, when the battery BMS controls the positive discharge switch modules and negative discharge switch modules of batteries 1 to 8 to be all turned on through the discharge gate conductive block and the discharge emitter conductive block, the voltage discharged by the total battery module is 2a V and the capacity is 4b Ah; when the battery BMS controls the positive discharge switch modules and negative discharge switch modules of single cells 1, 2, 3, and 4 to be turned on, and the corresponding single cells 5, 6, 7, and 8 are not turned on, the voltage discharged by the total battery module is 2a V and the capacity is 2b Ah. The equivalent diagram of the battery module is shown in the figure. Figure 3 As shown; when the battery BMS controls the positive discharge switch modules and negative discharge switch modules of the No. 1, No. 3, No. 5, and No. 7 single cells to be turned on, and the corresponding No. 2, No. 4, No. 6, and No. 8 single cells are not turned on, the external discharge voltage is a V and the capacity is 4b Ah. The equivalent diagram of the battery module is shown as follows Figure 4 shown.

[0072] As an example, Figure 5 As shown, a top cover corresponding to the structure of each single battery can be set on the top of the shell. The top cover includes a panel, a flexible circuit board and a buckle. The structural diagram is shown in FIG. Figure 6 and Figure 7 As shown, the explosion diagram is as follows Figure 8 The panel is provided with a metal plate and an insulating plastic plate. In addition, the metal plate, positive electrode column, negative electrode column, and control adapter module corresponding to each single cell are fixed to the insulating plastic plate by injection molding.

[0073] It should be noted that in this secondary single-cell battery control device, receiving control signals, forwarding control signals, using the positive voltage detection module and the negative voltage detection module to collect the voltage of the battery cell pack in the single-cell battery, etc. are all well-known technologies familiar to those skilled in the art, and the focus of this application is not the algorithm / program itself involved in the above technology, but the system as a whole that can realize these functions through the above connection relationship. Therefore, the specific implementation process of the above algorithm / program will not be described in detail here.

[0074] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0075] The above is only an exemplary embodiment of the present disclosure and cannot be used to limit the scope of the present disclosure. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure herein, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any variation, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the art that are not recorded in the present disclosure. The description and examples are to be regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. A secondary single battery control device, characterized in that: The device includes: a positive pole, a negative pole, a control adapter module, a positive switch module, a negative switch module, a positive adapter sheet, a negative adapter sheet and a battery core pack, wherein the control adapter module is connected to the positive switch module and the negative switch module respectively, the positive switch module is connected to the positive adapter sheet, the negative switch module is connected to the negative adapter sheet, the positive adapter sheet is connected to the positive tab of the battery core pack, the negative adapter sheet is connected to the negative tab of the battery core pack, the positive pole is connected to the positive switch module, and the negative pole is connected to the negative switch module; The control adapter module is used to receive the control signal sent by the external battery BMS and forward the control signal to the positive switch module and the negative switch module respectively; The positive switch module is used to control the circuit on / off and current direction between the positive electrode column and the core package positive electrode tab; The negative electrode switch module is used to control the circuit on / off and current direction between the negative electrode column and the core package negative electrode ear.

2. The device according to claim 1, characterized in that The positive switch module is provided with a positive charge switch module and a positive discharge switch module connected in parallel, and the negative switch module is provided with a negative charge switch module and a negative discharge switch module connected in parallel. The positive charge switch module, the positive discharge switch module, the negative charge switch module, and the negative discharge switch module are each provided with an insulated gate bipolar transistor and a diode; The first port of each switch module is connected to the anode of the diode, the cathode of the diode is connected to the collector of the insulated gate bipolar transistor, the second port of each switch module is connected to the emitter of the insulated gate bipolar transistor, and the third port of each switch module is connected to the gate of the insulated gate bipolar transistor.

3. The device according to claim 2, characterized in that The positive electrode adapter is connected to the first port of the positive discharge switch module and the second port of the positive charge switch module respectively, and the positive electrode column is connected to the second port of the positive discharge switch module and the first port of the positive charge switch module respectively; The negative electrode adapter is respectively connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charge switch module, and the negative electrode column is respectively connected to the first port of the negative electrode discharge switch module and the second port of the negative electrode charge switch module.

4. The device according to claim 2, characterized in that The control adapter module is provided with a discharge gate conductive block, and the discharge gate conductive block is connected to the third port of the positive discharge switch module and the third port of the negative discharge switch module respectively through a flexible circuit board; The discharge gate conductive block is used to forward the first discharge conduction voltage to the third ports of the positive discharge switch module and the negative discharge switch module.

5. The device according to claim 2, characterized in that The control adapter module is provided with a discharge emitter conductive block, and the discharge emitter conductive block is respectively connected to the second port of the positive discharge switch module and the second port of the negative discharge switch module through a flexible circuit board; The discharge emitter conductive block is used to forward the second discharge conduction voltage to the second ports of the positive discharge switch module and the negative discharge switch module.

6. The device according to claim 2, characterized in that The control adapter module is provided with a charging gate conductive block, and the charging gate conductive block is connected to the third port of the positive charging switch module and the third port of the negative charging switch module respectively through a flexible circuit board; The charging gate conductive block is used to forward a first charging conduction voltage to the third ports of the positive charging switch module and the negative charging switch module.

7. The device according to claim 2, characterized in that The control adapter module is provided with a charging emitter conductive block, and the charging emitter conductive block is connected to the second port of the positive charging switch module and the second port of the negative charging switch module respectively through a flexible circuit board; The charging emitter conductive block is used to forward the second charging conduction voltage to the second ports of the positive charging switch module and the negative charging switch module.

8. The device according to claim 2, characterized in that The control adapter module is provided with a positive electrode voltage detection module and a negative electrode voltage detection module, and the positive electrode voltage detection module and the negative electrode voltage detection module are used to sample the voltage of the battery core pack and transmit the voltage to the battery BMS.

9. The device according to claim 8, characterized in that The positive electrode voltage detection module is connected to the first port of the positive electrode discharge switch module and the second port of the positive electrode charging switch module through a flexible circuit board, and the negative electrode voltage detection module is connected to the second port of the negative electrode discharge switch module and the first port of the negative electrode charging switch module through a flexible circuit board.

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