Portable mobile energy complementing system
By designing a portable mobile energy replenishment system, the problems of high battery costs, slow charging and high development costs in electric engineering machinery are solved, plug-and-play electrical energy replenishment is achieved, battery life and operating efficiency are improved, and costs and investment needs are reduced.
Patent Information
- Application Number
- CN202421073623.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-16
AI Technical Summary
In electric engineering machinery, the existing technology is difficult to adapt to the changes in the driving route and operating location of the construction machinery due to the high battery cost, slow charging, large development costs, large investment in charging station construction, complex approval procedures and limited by the power grid capacity.
A portable mobile energy replenishment system is designed, including the whole machine part and the mobile electric cabinet part. The whole machine part is equipped with a whole machine controller, a power battery, a DC charging stand, etc. The electric cabinet part is equipped with an electric cabinet control unit, a power battery, a high-voltage converter, etc., and is connected to the DC charging stand through a DC charging gun to realize plug-and-play electric energy replenishment.
The system can improve the battery life of users when working outside, reduce the number of charging times, reduce development and investment costs, improve operational efficiency, and achieve flexible matching between energy replenishment devices and the entire machine, adapting to different operational needs.
Smart Images
Figure CN222638204U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a field, and in particular to a portable mobile energy replenishment system. Background Art
[0002] Battery cost and charging issues are one of the bottlenecks affecting the electrification of construction machinery. For pure electric construction machinery, large batteries are expensive, have long battery life, and charge slowly, while small batteries are cheap, have short battery life, and charge quickly. The development of different power configurations for road vehicles such as cranes and pump trucks needs to be announced separately, which increases development costs; the driving routes and working locations of construction machinery often change, and the service range of charging stations and battery swap stations is fixed, making them difficult to adapt.
[0003] The existing technical solutions mainly focus on developing models with different power configurations, high-power fast charging, and fast battery replacement. Develop models with different power configurations according to user needs. When charging with high power and fast charging, use multi-gun national standard DC charging. The charging station is equipped with multiple DC charging piles, and the corresponding whole machine is equipped with multiple DC charging ports. Both the charging piles and the whole machine BMS must support multi-gun associated charging. When fast battery replacement, the driver drives the vehicle to the battery replacement station, parks the vehicle accurately according to the infrared rangefinder of the battery replacement station, and the robot automatically lifts the battery for battery replacement.
[0004] However, different battery configurations for road vehicles need to be announced separately, which increases development costs; the construction of charging stations and battery swap stations requires large investments, and the approval procedures are complicated; charging stations and battery swap stations are constrained by the capacity of the power grid, and the site selection is restricted; the addresses of charging stations and battery swap stations are fixed, and vehicle routes are restricted.
[0005] Therefore, it is necessary to develop a new type of portable mobile energy replenishment system that can be carried in the vehicle and plug-and-play according to user needs to overcome the shortcomings of existing technologies. Utility Model Content
[0006] Purpose of the utility model: In view of the shortcomings and defects of the prior art, the utility model provides a portable mobile energy replenishment system that can be carried in a vehicle according to user needs, plug and play, low cost, convenient and fast.
[0007] Technical solution: The utility model is a portable mobile energy replenishment system, characterized in that it includes a whole machine part and a mobile electric cabinet part, the whole machine part is provided with a whole machine controller, the whole machine part is provided with a whole machine high-voltage electrical appliance, an all-in-one controller, a battery power distribution unit 1, a power battery 1 and a water cooling unit connected in sequence, the battery power distribution unit 1 is connected with a DC charging seat 1 and a DC charging seat 2; the electric cabinet part is provided with an electric cabinet control unit, the electric cabinet part is provided with a 24V battery, a DC-DC converter 2, a battery power distribution unit 2, and a power battery 2 connected in sequence, the battery power distribution unit 2 is connected with a DC-DC converter 1, the DC-DC converter 1 is connected with a DC charging seat 2 through a DC charging gun, and the battery power distribution unit 2 is connected with an external DC charging pile through a DC charging seat 3.
[0008] Wherein, the DC-DC converter 1 is a high voltage to high voltage converter.
[0009] Wherein, the DC-DC converter 2 is a high voltage to low voltage converter.
[0010] Wherein, the DC-DC converter 1 is connected to the DC charging gun.
[0011] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: the utility model can increase the endurance time of users in outdoor operations, reduce the number of charging times, and improve operating efficiency; it can increase the power configuration of road vehicles without re-announcement, saving development costs; it can replace the construction of battery swap stations, reducing user investment costs; it can decide whether to use it according to the user's operating time requirements, and is flexible and portable; it can realize one-to-many energy replenishment devices and complete machines, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a structural block diagram of the prior art high-power fast charging;
[0013] Figure 2 Flow chart for rapid battery replacement for existing technology;
[0014] Figure 3 It is a structural block diagram of the utility model;
[0015] Figure 4 It is a flow chart of the utility model. DETAILED DESCRIPTION
[0016] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0017] The VCU of the utility model is responsible for the normal driving, energy management, network management, fault diagnosis and processing, vehicle status monitoring, etc. of the whole machine. BMS is a battery management system that performs status monitoring, high voltage management and thermal management on the power battery. ECCU is an electric cabinet control unit that controls the power on and off of the electric cabinet and the awakening and sleep of each component. BDU is a battery distribution unit that distributes the power from the battery to high-voltage circuits such as discharge, charging, and battery thermal management. PDU is a power distribution unit that distributes the power from the discharge circuit of the BDU to each high-voltage electrical appliance of the whole machine. DC-DC is a direct current to direct current converter that is used to convert direct current into direct current of higher or lower voltage. CAN bus is a serial communication protocol bus used for real-time applications in a controller area network that can be used for communication between various components in a car. Power battery system is a system that converts the chemical energy of the battery into direct current energy to provide an energy source for equipment or vehicles, including a battery pack, a BMS and a BDU.
[0018] The portable mobile energy replenishment system of the utility model includes a complete electrical system and a mobile power cabinet. Figure 3The whole machine electrical system includes the whole machine controller VCU, power battery 1, DC charging seat 2, the whole machine controller VCU controls the whole machine power supply mode switching, the CAN line of DC charging seat 2 is connected to the whole machine power network CAN, the A+ of DC charging seat 2 is connected to the whole machine controller VCU wake-up output, the mobile electric cabinet is connected to the battery power distribution unit 2 BDU DC charging circuit of power battery 1 through DC charging seat 2; the mobile electric cabinet includes the electric cabinet control unit ECCU, power battery 2, high-voltage to high-voltage DC-DC converter 1 DCDC1, high-voltage to low-voltage DC-DC converter 2 DCDC2, 24V battery, DC charging seat 3 and DC charging gun, high-voltage to high-voltage DC-DC converter 1 DCDC1 and The high-voltage input of the high-voltage to low-voltage DC-DC converter DCDC2 is connected to the power battery 2, the high-voltage output of the high-voltage to high-voltage DC-DC converter DCDC1 is connected to the DC charging gun, the CAN line of the DC charging gun is connected to the CAN line of the electric cabinet, and the A+ of the DC charging gun is connected to the wake-up input of the electric cabinet control unit ECCU. The electric cabinet control unit ECCU communicates with the high-voltage to high-voltage DC-DC converter DCDC1, the high-voltage to low-voltage DC-DC converter DCDC2, and the BMS of the power battery 2 through CAN, and controls the wake-up of the high-voltage to high-voltage DC-DC converter DCDC1, the wake-up of the high-voltage to low-voltage DC-DC converter DCDC2, and the upper and lower high voltages of the power battery 2.
[0019] The electric cabinet is connected to the vehicle through a DC charging gun-socket. The cab is designed with a mode switch. When the mode switch is pressed in the high-voltage state of the whole machine, the whole machine controller VCU controls the battery management system BMS of the power battery 1 to enter the external power supply mode, and at the same time wakes up the electric cabinet control unit ECCU through A+. The battery management system BMS of the power battery 1 controls the relay of the DC charging circuit of the battery power distribution unit 2 BDU to close. The electric cabinet control unit ECCU controls the high voltage on the electric cabinet and wakes up the high-voltage to high-voltage DC-DC converter 1 DCDC1 and the high-voltage to low-voltage DC-DC converter 2 DC DC2, the electric cabinet control unit ECCU obtains the operation demand power P0, the voltage U1 and the allowed charging power P1 of the power battery one, and the allowed discharge power P2 of the power battery two through CAN, and controls the output power of the high-voltage to high-voltage DC-DC converter DCDC1 according to the size of P0. The conversion efficiency of the high-voltage to high-voltage DC-DC converter DCDC1 is η; the electric cabinet can be quickly mounted on the whole machine frame through the connection structure, and can also be quickly disassembled from the whole machine frame. The user decides whether to carry the electric cabinet according to the duration of the outdoor operation. The electric cabinet can match any vehicle with this external power supply mode.
[0020] The output voltage of the high-voltage to high-voltage DC-DC converter DCDC1 is set to U1+ΔU. When P0=0, the output power of the high-voltage to high-voltage DC-DC converter DCDC1 is set to the smaller value of P1 and P2*η. At this time, the power cabinet charges the power battery 1; when 0<P0<P2*η, the output power of the high-voltage to high-voltage DC-DC converter DCDC1 is set to the smaller value of P0+P1 and P2*η. At this time, the power cabinet charges the power battery 1 while supplying power to the operation; when P0>P2*η, the output power of the high-voltage to high-voltage DC-DC converter DCDC1 is set to P2*η. At this time, the power cabinet and the power battery 1 supply power to the operation together.
[0021] The battery management system BMS of power battery 2 is compatible with the national standard DC charging protocol. When the power cabinet itself is low on power and needs to be recharged, it can be directly connected to any national standard DC charging pile for charging through DC charging socket 3.
Claims
1. A portable mobile energy replenishment system, characterized in that: It includes a whole machine part and a mobile electric cabinet part. The whole machine part is provided with a whole machine controller. The whole machine part is provided with a whole machine high-voltage electrical appliance, an all-in-one controller, a battery power distribution unit 1, a power battery 1 and a water cooling unit connected in sequence. The battery power distribution unit 1 is connected with a DC charging seat 1 and a DC charging seat 2; the electric cabinet part is provided with an electric cabinet control unit. The electric cabinet part is provided with a 24V battery, a DC-DC converter 2, a battery power distribution unit 2, and a power battery 2 connected in sequence. The battery power distribution unit 2 is connected with a DC-DC converter 1. The DC-DC converter 1 is connected with a DC charging seat 2 through a DC charging gun. The battery power distribution unit 2 is connected with an external DC charging pile through a DC charging seat 3.
2. The portable mobile energy replenishment system according to claim 1, characterized in that: The DC-DC converter 1 is a high voltage to high voltage converter.
3. The portable mobile energy replenishment system according to claim 1, characterized in that: The DC-DC converter 2 is a high voltage to low voltage converter.
4. The portable mobile energy replenishment system according to claim 1, characterized in that: The DC-DC converter 1 is connected to the DC charging gun.