Low-cost battery maintenance system

Abstract

The utility model belongs to the technical field of new energy batteries, and relates to a battery maintenance system, in particular to a low-cost battery maintenance system. A scheme is formed through a low-cost maintenance system, so that the maintenance of the stored batteries is realized; according to the system, except the PCS energy storage converter, each subsystem is composed of existing products and parts, so that the equipment investment cost for maintenance is reduced; extra electric energy supplement is not needed in the charging and discharging process of the batteries, the stocked batteries can be maintained through energy conversion between the batteries, and the electric energy input cost is reduced; in addition, a real vehicle controller and an automobile wire harness are used, an energy storage system and a vehicle-mounted power system are combined, and an innovative thought is developed for development of new energy while the battery maintenance requirement is met. The scheme provided by the utility model has the characteristics of simple structure, low cost and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy batteries, relates to a battery maintenance system, and specifically relates to a low-cost battery maintenance system. Background Art

[0002] With the development of new energy vehicles and energy storage industries, the stock of power batteries and energy storage batteries is growing continuously. For major companies, how to reduce the cost of maintaining the stock of batteries (battery pack SOC needs to be slowly charged to 100% to balance the battery cell power; charge and discharge at least once a month) has become one of the problems currently faced by various companies.

[0003] At present, the commonly used method is to charge and discharge the existing batteries through power supply from the grid + special equipment. However, the existing method will increase the cost of maintenance (external power supply will cause additional electricity consumption). In view of the above situation, it is urgent to develop a maintenance system that is simple to operate and low in cost to reduce the cost of maintaining the existing batteries.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art and provide a low-cost battery maintenance system.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A low-cost battery maintenance system, comprising a voltage-stabilized power supply module, wherein the voltage-stabilized power supply module is respectively connected to a start switch, a rocker switch for waking up a BMS, and a discharge battery base through a first power exchange controller, wherein the discharge battery base is sequentially connected to a PCS energy storage converter and an integrated charger;

[0008] The voltage-stabilized power supply module is also connected to the rechargeable battery base through a second power exchange controller; the rechargeable battery base is connected to an integrated charger.

[0009] Specifically, the voltage-stabilized power supply module is used to supply power to the first battery swap controller, the second battery swap controller and the battery pack BMS.

[0010] Specifically, the battery is a stock battery of a heavy truck.

[0011] Specifically, the battery base is used for charging and discharging the battery pack and obtaining battery pack information;

[0012] The first battery exchange controller and the second battery exchange controller are used to simulate the on-board controller of the real vehicle to perform signal detection of the base sensor, control information collection, IO signal (information exchange signal between the computer and the external device) to CAN signal processing, etc.;

[0013] PCS energy storage converter: used for DC / AC conversion within the system, converting the DC power of the discharged battery into 380V AC power;

[0014] Integrated charger: used for AC / DC conversion within the system, rectifying the AC power converted by the PCS energy storage converter into DC power for charging the battery;

[0015] Car key switch: used to start and stop the system, and to start the discharge battery by simulating the start-up method of a real car;

[0016] Rocker switch: used to wake up the BMS of the discharged battery;

[0017] Specifically, the starting switch is a car key switch.

[0018] Specifically, the first battery exchange controller is also connected to a rotating alarm light for warning the battery power level, and the rotating alarm light is used to prompt and warn the battery power level.

[0019] Specifically, the first battery exchange controller and the discharge battery base, and the second battery exchange controller and the charging battery base are all connected through a low-voltage wiring harness.

[0020] Specifically, the discharge battery base and the PCS energy storage inverter, and the PCS energy storage inverter and the integrated charger are all connected through a high-voltage wire harness.

[0021] Specifically, the integrated charger is connected to the rechargeable battery base via a charging gun line.

[0022] Specifically, the first battery swap controller is provided with a reserved debugging interface for calling the working status of the first battery swap controller and the BMS.

[0023] Specifically, the PCS energy storage converter is provided with an operation panel.

[0024] Specifically, the integrated charger is provided with an operation panel.

[0025] Specifically, the integrated charger is provided with a power indicator light for indicating the system operating status.

[0026] Compared with the prior art, the technical solution provided by the utility model includes the following beneficial effects:

[0027] The utility model realizes the maintenance of inventory batteries through a low-cost maintenance system composition scheme, which has the following advantages: (1) Except for the PCS energy storage inverter, all subsystems are composed of existing products and components, which reduces the equipment investment cost of maintenance; (2) The battery charging and discharging process does not require additional electric energy supplement, and the maintenance of inventory batteries can be achieved through energy conversion between batteries, reducing the cost of electric energy input; (3) The utility model also uses a real vehicle controller and automotive wiring harness to combine the energy storage system with the vehicle power system, which not only meets the battery maintenance requirements, but also opens up new ideas for the development of new energy. The solution of the utility model has the characteristics of simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings herein are incorporated into and constitute a part of this specification, and together with the description, are used to explain the principles of the present utility model.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 It is a schematic diagram of the system structure of the utility model;

[0031] Figure 2 This is a schematic diagram of the external control circuit of the first battery exchange controller of the utility model;

[0032] Figure 3 This is a schematic diagram of the external control circuit of the second battery exchange controller of the present utility model. DETAILED DESCRIPTION

[0033] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model. Instead, they are only examples consistent with some aspects of the present utility model as detailed in the attached claims.

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Example 1

[0036] This embodiment provides a low-cost battery maintenance system, including a voltage-stabilized power supply module, which is respectively connected to a start switch, a rocker switch for waking up the BMS, and a discharge battery base through a first power exchange controller, and the discharge battery base is sequentially connected to a PCS energy storage converter and an integrated charger;

[0037] The voltage-stabilized power supply module is also connected to the rechargeable battery base through the second power exchange controller; the rechargeable battery base is connected to the integrated charger, see Figure 1-3 shown.

[0038] Specifically, the starting switch is a car key switch.

[0039] Specifically, the first battery exchange controller is also connected to a rotating alarm light for warning the battery power level.

[0040] Specifically, the first battery exchange controller and the discharge battery base, and the second battery exchange controller and the charging battery base are all connected through a low-voltage wiring harness.

[0041] Specifically, the discharge battery base and the PCS energy storage inverter, and the PCS energy storage inverter and the integrated charger are all connected through a high-voltage wire harness.

[0042] Specifically, the integrated charger is connected to the rechargeable battery base via a charging gun line.

[0043] Specifically, the first battery swap controller is provided with a reserved debugging interface for calling the working status of the first battery swap controller and the BMS.

[0044] Specifically, the PCS energy storage converter is provided with an operation panel.

[0045] Specifically, the integrated charger is provided with an operation panel.

[0046] Specifically, the integrated charger is provided with a power indicator light.

[0047] Example 2

[0048] This embodiment provides a low-cost battery maintenance system. Figure 1 As shown, use the automotive wiring harness to connect the voltage-stabilized power supply module, the first battery-swapping controller, the second battery-swapping controller, the automotive key switch, the rocker switch, the rotating warning light, the charging battery base, the discharging battery base, the PCS energy storage converter, and the integrated charger;

[0049] See also Figure 2 As shown, it is the external control interface pin diagram of the first battery swap controller;

[0050] See also Figure 3As shown, it is the external control interface pin diagram of the second battery swap controller;

[0051] The voltage-stabilized power supply module provides power for the first battery exchange controller, the second battery exchange controller, the rotating alarm light, the BMS of the charging battery and the discharging battery;

[0052] The rocker switch provides a wake-up signal to the BMS of the discharged battery, and the key switch provides a start-up wake-up signal and a system high-voltage start-up signal to the system;

[0053] Through the external control circuit, a start signal is sent to the first battery replacement controller, and through the CAN circuit of the low-voltage wiring harness of the discharge battery base, effective communication is established with the BMS of the battery, thereby completing the start of the discharge function;

[0054] Use the automotive high-voltage wiring harness to connect the discharge port of the discharge battery base with the DC input end of the PCS energy storage converter to establish a DC high-voltage discharge circuit and complete the construction of the discharge subsystem;

[0055] The AC output of the PCS energy storage inverter adopts a three-phase four-wire system. The AC output port of the PCS energy storage inverter is connected to the input terminal of the integrated charger using a high-voltage automotive wiring harness to establish an AC power supply circuit. The charging subsystem is built by plugging the charging gun cable into the national standard charging port on the charging battery base.

[0056] The CAN bus loop of the first battery swap controller has a reserved debugging interface to facilitate recording the working status of the first battery swap controller and BMS, so as to prepare for follow-up visits and analysis of the causes of system failures.

[0057] See also Figure 1 As shown, the present application also provides a workflow of a low-cost battery maintenance system:

[0058] Step 1: Before use, check that the high-voltage and low-voltage wiring harnesses in the battery maintenance system are connected tightly and without any abnormalities;

[0059] Step 2: Install the charging and discharging battery to the discharging battery base. At this time, turn on the switch of the voltage-stabilizing power supply module to provide working power for the first battery replacement controller and the second battery replacement controller in the battery maintenance system.

[0060] Step 3: Press the rocker switch and turn the car key switch to the "ST" position for 3 seconds. The high voltage of the electronic system is ready.

[0061] Step 4: Wait for the contactor in the battery to close (there will be a sound of contactor closing inside the battery), the operation panel of the PCS energy storage inverter lights up, click Start on the PCS energy storage inverter operation panel, and the discharge system is now started;

[0062] Step 5. Close all circuit breakers inside the integrated charger, observe the power indicator light and operation panel of the integrated charger, and wait for the charger configuration to be completed;

[0063] Step 6: After the integrated charger is started, insert the charging gun into the charging battery base, and enter the charging start password on the operation panel of the integrated charger (normal charger) to start charging;

[0064] Step 7: Charging ends;

[0065] Case 1: When the SOC of the charging battery reaches 100%, click Stop Charging on the operation panel of the integrated charger, unplug the charging gun, replace the battery to be charged, and continue with step 6 above;

[0066] Case 2: The rotating alarm light sounds (the SOC of the discharged battery is lower than the set value). Click Stop Charging on the operation panel of the integrated charger, unplug the charging gun, and click the Stop button on the operation panel of the PCS energy storage inverter. Wait for the battery maintenance system to stop running, turn the car key switch to LOCK, unplug the key, turn off the rocker switch, replace the battery to be discharged, and then repeat the above steps 1-6.

[0067] The existing parts models or purchasing channels in this utility model are as follows:

[0068] Battery replacement controller: XZ42821200008;

[0069] Battery base (including wiring harness connector): DC-XBZL;

[0070] PCS energy storage converter: CoEpo PCS-100kW;

[0071] Integrated charger: IDS280K750-H2;

[0072] Voltage stabilized power supply module: LRS-350-24;

[0073] Car key switches, rotary warning lights, rocker switches: all can be purchased through regular purchasing channels.

[0074] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0075] It should be understood that the present invention is not limited to the above-described contents, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A low-cost battery maintenance system, characterized in that: It includes a voltage-stabilized power supply module, which is respectively connected to a start switch, a rocker switch for waking up the BMS, and a discharge battery base through a first power exchange controller, and the discharge battery base is sequentially connected to a PCS energy storage converter and an integrated charger; The voltage-stabilized power supply module is also connected to the rechargeable battery base through a second power exchange controller; the rechargeable battery base is connected to an integrated charger.

2. The battery maintenance system according to claim 1, characterized in that: The starting switch is a car key switch.

3. The battery maintenance system according to claim 1, characterized in that: The first battery exchange controller is also connected to a rotating alarm light for warning the battery power.

4. The battery maintenance system according to claim 1, characterized in that: The first battery exchange controller and the discharge battery base, and the second battery exchange controller and the charging battery base are all connected through a low-voltage wiring harness.

5. The battery maintenance system according to claim 1, characterized in that: The discharge battery base and the PCS energy storage converter, as well as the PCS energy storage converter and the integrated charger are all connected via a high-voltage wiring harness.

6. The battery maintenance system according to claim 1, characterized in that: The integrated charger is connected to the rechargeable battery base via a charging gun line.

7. The battery maintenance system according to claim 1, characterized in that: The first battery swap controller is provided with a reserved debugging interface for accessing the working status of the first battery swap controller and the BMS.

8. The battery maintenance system according to claim 1, characterized in that: The PCS energy storage converter is provided with an operation panel.

9. The battery maintenance system according to claim 1, characterized in that: The integrated charger is provided with an operation panel.

10. The battery maintenance system according to claim 1, characterized in that: The integrated charger is provided with a power indicator light.

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