Multi-slide-rail energy storage power supply system

Abstract

The utility model discloses a multi-slide-rail energy storage power supply system, which is characterized in that mutually independent slide rail interfaces are arranged on a multi-slide-rail energy storage power supply, so that power can be supplied to a multi-slide-rail device or a plurality of single-slide-rail devices independently, the working efficiency is improved, the use of a user is facilitated, and the user does not need to carry more battery packs to go out to work; each independent sliding rail at least comprises a positive electrode interface P +, a negative electrode interface P-and a communication interface COM, external equipment realizes independent communication with the energy storage power supply through the communication interface on each independent sliding rail, and simultaneous use of a plurality of tools is met; and each single sliding rail comprises a group of positive electrode interfaces and negative electrode interfaces, so that the overall current-carrying capacity of the battery pack is improved.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly relates to a multi-rail energy storage power supply system. Background Art

[0002] Most of the existing battery packs are in a single-rail interface mode. In this mode, only one tool can be supplied. When multiple tools need to work simultaneously, corresponding multiple battery packs are required; and in order to meet the working requirements, the weight capacity and weight of the existing battery packs are getting larger and larger.

[0003] Therefore, a battery pack with a single-rail interface mode can only supply one tool, which greatly reduces the working efficiency; and when multiple tools need to work outdoors, multiple battery packs with a single-rail interface mode need to be carried to meet the needs of multiple tools, which is very inconvenient for users. Utility Model Content

[0004] In view of this, this application provides a multi-rail energy storage power supply system, which can meet the simultaneous use of multiple tools or the use of a multi-interface tool, improves the working efficiency, and is convenient for users to carry. The technical solution of this application is as follows:

[0005] In the first aspect of this application, a multi-rail energy storage power supply system is provided. The system includes a multi-rail energy storage power supply and an external device. The multi-rail energy storage power supply includes:

[0006] A power supply positive electrode and a power supply negative electrode;

[0007] A controller;

[0008] At least two independent rails, each individual rail includes at least one positive electrode interface P+, one negative electrode interface P−, and one communication interface COM. Each individual rail is used to achieve an independent detachable connection between the external device and the energy storage power supply, and each individual rail is electrically connected to the controller and the power supply negative electrode;

[0009] A switch module, the first end of the switch module is electrically connected to the rail, the second end of the switch module is electrically connected to the controller, and the third end of the switch module is electrically connected to the power supply positive electrode;

[0010] One end of the controller is electrically connected to the rail, and the other end of the controller is electrically connected to the switch module. The controller is used to communicate with the external device through the communication interface on each rail to obtain communication information, and perform data processing on the obtained communication information to obtain processed information. The controller controls the on / off of the switch module according to the processed information to control the multi-rail energy storage power supply to discharge to at least one external device or charge itself.

[0011] In an embodiment of the present application, the controller includes a power supply module, a data processing module, and a control processing module. The power supply module is electrically connected to the first communication interface, the second communication interface, the positive power supply terminal, the data processing module, and the control processing module respectively. The data processing module is electrically connected to the second communication interface, the power supply module, and the control processing module respectively. The control processing module is electrically connected to the power supply module, the switch module, and the data processing module respectively.

[0012] In an embodiment of the present application, the slide rail at least includes a first slide rail and a second slide rail. The first slide rail includes a first positive electrode interface, a first negative electrode interface, and a first communication interface; the second slide rail includes a second positive electrode interface, a second negative electrode interface, and a second communication interface;

[0013] The first positive electrode interface is electrically connected to the switch module, the first negative electrode interface is electrically connected to the negative power supply terminal, the first communication interface is electrically connected to the power supply module and the data processing module, and the first communication interface is used to establish communication between an external device and the energy storage power supply;

[0014] The second positive electrode interface is electrically connected to the switch module, the second negative electrode interface is electrically connected to the negative power supply terminal, the second communication interface is electrically connected to the power supply module and the data processing module, and the second communication interface is used to establish communication between an external device and the energy storage power supply.

[0015] In an embodiment of the present application, the external device includes a first load connection piece and a second load connection piece that cooperate with the slide rail; the external device further includes a third voltage detection module and a fourth voltage detection module. The first load connection piece includes a third positive electrode interface, a third negative electrode interface, and a third communication interface. The second load connection piece includes a fourth positive electrode interface, a fourth negative electrode interface, and a fourth communication interface; the third positive electrode interface is connected to the third voltage detection module; the fourth positive electrode interface is connected to the fourth voltage detection module.

[0016] In an embodiment of the present application, the energy storage power supply realizes communication with the external device through the first communication interface and the third communication interface and / or the energy storage power supply realizes communication with the external device through the second communication interface and the fourth communication interface.

[0017] In an embodiment of the present application, the second slide rail includes a second voltage detection module; the first voltage detection module is connected to the first positive electrode interface and the data processing module, and is configured to detect the terminal voltage of the first battery pack and transmit the terminal voltage of the first battery pack to the data processing module; the second voltage detection module is connected to the second positive electrode interface and the data processing module, and is configured to detect the terminal voltage of the second battery pack and transmit the terminal voltage of the second battery pack to the data processing module.

[0018] In an embodiment of the present application, the communication information at least includes voltage information and level signals.

[0019] In an embodiment of the present application, the communication protocols for the controller to communicate with the external device include UART, CAN, and SPI.

[0020] In an embodiment of the present application, the external device includes a charger or a tool with communication function.

[0021] In an embodiment of the present application, the external device includes a multi-slide rail device or multiple single-slide rail devices.

[0022] The multi-slide rail energy storage power supply system according to the embodiment of the present application can supply power to a multi-slide rail device or multiple single-slide rail devices separately by setting independent slide rail interfaces on the multi-slide rail energy storage power supply, improving work efficiency and facilitating user use. Users do not need to carry more battery packs when going out for work; each individual slide rail at least includes a positive electrode interface P+, a negative electrode interface P-, and a communication interface COM. The external device realizes separate communication with the energy storage power supply through the communication interface on each individual slide rail, meeting the simultaneous use of multiple tools; each individual slide rail includes a set of positive electrode and negative electrode interfaces, increasing the overall current-carrying capacity of the battery pack. Description of the Drawings

[0023] Figure 1 is a slide rail structure diagram of a multi-slide rail energy storage power supply provided by an embodiment of the present application.

[0024] Figure 2 is a schematic block diagram of a multi-slide rail energy storage power supply provided by an embodiment of the present application.

[0025] Figure 3 is a schematic block diagram of a multi-slide rail energy storage power supply system provided by an embodiment of the present application.

[0026] Reference numerals and their meanings in the drawings:

[0027] 100. Controller, 1P+. First positive electrode interface, 1P-. First negative electrode interface, 1COM. First communication interface, 2P+. Second positive electrode interface, 2P-. Second negative electrode interface, 2COM. Second communication interface, 3P+. Third positive electrode interface, 3P-. Third negative electrode interface, 3COM. Third communication interface, 4P+. Fourth positive electrode interface, 4P-. Fourth negative electrode interface, 4COM. Fourth communication interface, 201. Third voltage detection module, 202. First voltage detection module, 203. Fourth voltage detection module, 204. Second voltage detection module, 301. First load connection piece, 302. Second load connection piece, 400. External device, 500. Multi-rail energy storage power supply, B+. Power supply positive electrode, B-. Power supply negative electrode Detailed implementation manners

[0028] It should be noted that in the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B may be singular or plural. The terms "first", "second", "third", "fourth", etc. (if any) in the description, claims and drawings of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0029] In addition, it should be noted that the methods disclosed in the embodiments of the present application or shown in the flowcharts include one or more steps for implementing the methods. Without departing from the scope of the claims, the execution order of multiple steps may be interchanged with each other, and some steps may also be deleted.

[0030] Most of the existing battery packs are in a single-rail interface mode. In this mode, only one tool can be supplied. When multiple tools need to work simultaneously, corresponding battery packs with multiple units are required; and in order to meet the working requirements, the weight and capacity of the existing battery packs are also getting larger and larger.

[0031] Therefore, a battery pack in a single-rail interface mode can only supply one tool, which greatly reduces the work efficiency; and when multiple tools need to work outdoors, multiple battery packs in a single-rail interface mode need to be carried to meet the needs of multiple tools, which is very inconvenient for users.

[0032] The present application provides a multi-rail energy storage power supply. By setting independent rail interfaces, it can supply power to a multi-rail device or multiple single-rail devices separately, improving work efficiency and facilitating user use. Users do not need to carry more battery packs when working outside; each individual rail includes at least one positive electrode interface P+, one negative electrode interface P-, and one communication interface COM. External devices can communicate with the energy storage power supply separately through the communication interfaces on each individual rail, meeting the simultaneous use of multiple tools; each individual rail includes a set of positive and negative electrode interfaces, increasing the overall current-carrying capacity of the battery pack.

[0033] The multi-rail battery pack is provided with at least several single battery cells. The number of parallel connections between the battery cells is greater than or equal to 2, and the number of series connections between the battery cells is greater than or equal to 14. The battery cells are first connected in parallel and then in series.

[0034] A support device for supporting the connection of the battery cells is installed in the battery pack. The support device is supported by insulating materials. Metal connection components for electrically connecting each battery cell are installed in the battery pack. The shape of the battery cell includes but is not limited to a cylindrical shape. Positive and negative electrodes are provided at both ends of the battery cell. The positive and negative electrodes are higher than the plane of the battery cell body. The nominal voltage of the battery cell is ≥3.2V.

[0035] A battery management component for managing the battery is also provided inside the battery pack. The control device obtains at least one of the voltage, temperature, and current information of the battery cell; the control device calculates the optimal charging parameters of the current battery cell through the status data, and the control device calculates the optimal discharging parameters of the current battery cell through the status data. The discharging parameters include at least one of whether the battery cell is allowed to discharge and the discharging power (State of power); the data information sent by the control device can be transmitted through the data conversion device, and data information can also be obtained through the data conversion device.

[0036] Please refer to Figure 1 , Figure 1 which is a rail structure diagram of a multi-rail energy storage power supply provided by an embodiment of the present application. As shown in the figure, the rail includes three interfaces, which are the positive electrode interface, the communication interface, and the negative electrode interface in sequence.

[0037] Please refer to Figure 2 , Figure 2Schematic block diagram of a multi-rail energy storage power supply provided by an embodiment of the present application. Among them, the multi-rail energy storage power supply includes: a power supply positive electrode and a power supply negative electrode; a controller; at least two independent rails. In this embodiment, two rails are taken as an example, and the two rails are respectively a first rail and a second rail. The first rail is independently electrically connected to an external device, a controller, and a switch module. The second rail is independently electrically connected to an external device, a controller, and a switch module. A first end of the switch module is electrically connected to the rail, a second end of the switch module is electrically connected to the controller, and a third end of the switch module is electrically connected to the power supply positive electrode; one end of the controller is electrically connected to the rail, and the other end of the controller is electrically connected to the switch module. The controller is configured to communicate with an external device through the first rail and / or the second rail to obtain communication information, and perform data processing on the obtained communication information to obtain processed information. The controller controls the on / off of the switch module according to the processed information to control the multi-rail energy storage power supply to discharge to at least one external device or charge itself.

[0038] Please refer to Figure 3 , Figure 3 Schematic block diagram of a multi-rail energy storage power supply system provided by an embodiment of the present application. Among them, each individual rail at least includes a positive electrode interface P+, a negative electrode interface P−, and a communication interface COM. Each individual rail is used to realize an independently detachable connection between an external device and the energy storage power supply, and each individual rail can be independently electrically connected to a controller and a power supply negative electrode; the first rail includes a first positive electrode interface, a first negative electrode interface, and a first communication interface; the second rail includes a second positive electrode interface, a second negative electrode interface, and a second communication interface. The first positive electrode interface is electrically connected to the switch module, the first negative electrode interface is electrically connected to the power supply negative electrode, and the first communication interface is electrically connected to the power supply module and the data processing module. The first communication interface is used to establish communication between the external device and the energy storage power supply; the second positive electrode interface is electrically connected to the switch module, the second negative electrode interface is electrically connected to the power supply negative electrode, and the second communication interface is electrically connected to the power supply module and the data processing module. The second communication interface is used to establish communication between the external device and the energy storage power supply.

[0039] The controller includes a power supply module, a data processing module, and a control processing module. The power supply module is respectively electrically connected to the first communication interface, the second communication interface, the power supply positive electrode, the data processing module, and the control processing module. The data processing module is respectively electrically connected to the second communication interface, the power supply module, and the control processing module. The control processing module is respectively electrically connected to the power supply module, the switch module, and the data processing module.

[0040] Further, the data processing module and the control processing module are electrically connected, and are used to transmit the data information processed by the data processing module to the control processing module. The control processing module receives the data information processed by the data processing module and outputs a control signal externally. The power supply module is electrically connected to the first communication interface, the second communication interface, the positive power supply terminal, the data processing module, and the control processing module respectively, and is used to receive the communication information sent by the first communication interface and / or the second communication interface. The communication information includes, but is not limited to, voltage signals and level signals. When the power supply module receives a high-level signal sent by the first communication interface and / or the second communication interface, the power supply module is activated. The power supply module draws power from the positive power supply terminal and delivers the obtained power to the control processing module and the data processing module, so that the control processing module and the data processing module start to work, and then communication begins between the external device and the battery pack.

[0041] The external device includes a first load connection piece and a second load connection piece that cooperate with the slide rail. The load connection piece includes a positive electrode interface P+, a negative electrode interface P-, and a communication interface COM corresponding to the interface on the slide rail. The communication interface is electrically connected to the controller of the external device. The external device further includes a third voltage detection module and a fourth voltage detection module. The first load connection piece includes a third positive electrode interface, a third negative electrode interface, and a third communication interface. The second load connection piece includes a fourth positive electrode interface, a fourth negative electrode interface, and a fourth communication interface; the third positive electrode interface is connected to the third voltage detection module; the fourth positive electrode interface is connected to the fourth voltage detection module.

[0042] Further, the communication interface is electrically connected to the controller of the external device. The energy storage power supply realizes communication with the external device through the first communication interface and the third communication interface and / or the energy storage power supply realizes communication with the external device through the second communication interface and the fourth communication interface.

[0043] The third voltage detection module is connected to the first load connection piece and is used to detect the first load terminal voltage; the first voltage detection module is connected to the first positive electrode interface and the data processing module and is used to detect the first battery pack terminal voltage and transmit the terminal voltage to the data processing module; the fourth voltage detection module is connected to the second load connection piece and is used to detect the second load terminal voltage; the second voltage detection module is connected to the second positive electrode interface and the data processing module and is used to detect the second battery pack terminal voltage and transmit the terminal voltage to the data processing module.

[0044] The load connecting piece includes a positive electrode interface P+, a negative electrode interface P-, and a communication interface COM. The communication interface is electrically connected to the controller of an external device. The first load connecting piece includes a third positive electrode interface, a third negative electrode interface, and a third communication interface. The second load connecting piece includes a fourth positive electrode interface, a fourth negative electrode interface, and a fourth communication interface. The third positive electrode interface is connected to the third voltage detection module. The fourth positive electrode interface is connected to the fourth voltage detection module.

[0045] The communication interface is electrically connected to the controller of an external device. The energy storage power supply realizes communication with the external device through the first communication interface and the third communication interface. The energy storage power supply realizes communication with the external device through the second communication interface and the fourth communication interface.

[0046] Further, the external device is detachably connected to the battery pack through a slide rail. The controller of the external device is electrically connected to the positive electrode interface, negative electrode interface, and communication interface corresponding to the slide rail interface on the electrical connecting piece. The controller of the external device powers on and sends a high-level signal to the battery pack through the communication interface on the electrical connecting piece and the slide rail. When the power module receives the high-level signal sent from the external device, the power module is activated. The power module takes power from the positive power supply and delivers the obtained power to the control processing module and the data processing module, so that the control processing module and the data processing module start to work. Then, communication starts between the external device and the battery pack.

[0047] The external device obtains communication information through communication with the battery pack. The communication information includes but is not limited to the first load terminal voltage and the second load terminal voltage. The data processing module inside the battery pack processes data according to the received first load terminal voltage and the first battery pack terminal voltage, and transmits the processing result to the control processing module. When the processing result shows a voltage difference, that is, the connection between the external device and the battery pack is abnormal, the control processing module controls the switch module not to conduct. When the processing result shows no voltage difference or a very small voltage difference, that is, the connection between the external device and the battery pack is normal, the control processing module controls the switch module to conduct to discharge the external device or charge itself.

[0048] Further, the switch module includes a switch and a fuse.

[0049] Further, the communication protocol for the controller to communicate with the external device includes but is not limited to UART, CAN, and SPI.

[0050] Further, the external device includes but is not limited to a charger or a tool with communication function.

[0051] Further, the external device includes but is not limited to a multi-slide rail device or multiple single-slide rail devices.

[0052] The embodiments described above are merely described in terms of the preferred embodiments of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. A multi-rail energy storage power supply system, characterized in that: The system includes a multi-track energy storage power supply and external equipment, and the multi-track energy storage power supply includes: The positive and negative poles of the power supply; Controller; At least two independent slide rails, each of which includes at least a positive electrode interface P+, ​​a negative electrode interface P- and a communication interface COM, each of which is used to realize an independent and detachable connection between an external device and the energy storage power supply, and each of which is electrically connected to the controller and the negative electrode of the power supply; A switch module, wherein a first end of the switch module is electrically connected to the slide rail, a second end of the switch module is electrically connected to the controller, and a third end of the switch module is electrically connected to the positive electrode of the power supply; One end of the controller is electrically connected to the slide rail, and the other end of the controller is electrically connected to the switch module. The controller is used to communicate with an external device through a communication interface on each slide rail to obtain communication information, and to perform data processing on the obtained communication information to obtain processing information. The controller controls the on and off of the switch module according to the processing information to control the multi-slide rail energy storage power supply to discharge at least one external device or charge itself.

2. The multi-rail energy storage power supply system according to claim 1, characterized in that: The slide rail at least includes a first slide rail and a second slide rail, the first slide rail includes a first communication interface; the second slide rail includes a second communication interface; The controller includes a power module, a data processing module and a control processing module, wherein the power module is electrically connected to the first communication interface, the positive pole of the power supply, the data processing module and the control processing module respectively, the data processing module is electrically connected to the second communication interface, the power module and the control processing module respectively, and the control processing module is electrically connected to the power module, The switch module and the data processing module.

3. The multi-rail energy storage power supply system according to claim 2, characterized in that: The slide rail at least includes a first slide rail and a second slide rail, the first slide rail includes a first positive electrode interface, a first negative electrode interface and a first communication interface; the second slide rail includes a second positive electrode interface, a second negative electrode interface and a second communication interface; The first positive electrode interface is electrically connected to the switch module, the first negative electrode interface is electrically connected to the negative electrode of the power supply, the first communication interface is electrically connected to the power supply module and the data processing module, and the first communication interface is used to establish communication between an external device and the energy storage power supply; The second positive electrode interface is electrically connected to the switch module, the second negative electrode interface is electrically connected to the negative electrode of the power supply, the second communication interface is electrically connected to the power supply module and the data processing module, and the second communication interface is used to establish communication between the external device and the energy storage power supply.

4. The multi-rail energy storage power supply system according to claim 3, characterized in that: The slide rail includes at least a first slide rail and a second slide rail, the first slide rail includes a first voltage detection module, and the second slide rail includes a second voltage detection module; the first voltage detection module is connected to the first positive electrode interface and the data processing module, and is used to detect the first battery pack terminal voltage and transmit the first battery pack terminal voltage to the data processing module; the second voltage detection module is connected to the second positive electrode interface and the data processing module, and is used to detect the second battery pack terminal voltage and transmit the second battery pack terminal voltage to the data processing module.

5. The multi-rail energy storage power supply system according to claim 2, characterized in that: The external device includes a first load connecting piece and a second load connecting piece that cooperate with the slide rail; the external device also includes a third voltage detection module and a fourth voltage detection module, the first load connecting piece includes a third positive electrode interface, a third negative electrode interface and a third communication interface, the second load connecting piece includes a fourth positive electrode interface, a fourth negative electrode interface and a fourth communication interface; the third positive electrode interface is connected to the third voltage detection module; the fourth positive electrode interface is connected to the fourth voltage detection module.

6. The multi-rail energy storage power supply system according to claim 5, characterized in that: The energy storage power supply communicates with an external device through the first communication interface and the third communication interface and / or the energy storage power supply communicates with an external device through the second communication interface and the fourth communication interface.

7. The multi-rail energy storage power supply system according to claim 1, characterized in that: The communication information at least includes voltage information and level signal.

8. The multi-rail energy storage power supply system according to claim 1, characterized in that: The communication protocols used by the controller to communicate with the external device include UART, CAN, and SPI.

9. The multi-rail energy storage power supply system according to claim 1, characterized in that: The external device includes a charger or a tool with a communication function.

10. The multi-rail energy storage power supply system according to claim 1, characterized in that: The external device includes a multi-slide device or a plurality of single-slide devices.

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