Buffered charging pile integrated with energy storage battery

Abstract

The utility model discloses a kind of buffer type charging pile of integrated energy storage battery, it is related to new energy automobile charging facility technical field, including charging pile main body, intelligent control unit, bidirectional converter, electrical bin and battery cabin, the inside top of battery cabin is provided with detection assembly and perfluorohexanone automatic fire extinguishing assembly;One side of battery cabin is embedded and installed with cooling fan, and energy storage battery module is installed in the inside of battery cabin by guide rail component;The present design utilizes detection assembly to monitor battery cabin internal temperature data in real time, it is convenient to utilize liquid cooling plate and cooling fan to work cooperatively, in addition, by the cooperation of smoke sensor and perfluorohexanone automatic fire extinguishing assembly, automatic starting fire extinguishing treatment can be carried out when fire occurs, in addition, the present design is discharged by valley time charging and peak time, realizes peak clipping and valley filling, smooths power grid load curve, delays power grid capacity demand, utilizes peak-valley electricity price difference, reduces charging station operating power cost, improves economic benefit.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle charging facilities, and in particular to a buffer charging pile with integrated energy storage battery. Background Technology

[0002] With the popularization of electric vehicles, the demand for charging has surged, putting enormous pressure on the power grid. Most existing charging piles are directly connected to the power grid, which may cause a significant impact on the power grid during peak electricity consumption periods. They also lack effective energy storage buffering functions. At the same time, the energy storage batteries in the charging piles are prone to heat accumulation during operation, posing safety hazards. Furthermore, battery replacement is inconvenient, and fire extinguishing measures are not timely or efficient enough.

[0003] Therefore, this utility model provides a buffer-type charging pile with integrated energy storage battery. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a buffer-type charging pile with integrated energy storage battery, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a buffer charging pile with integrated energy storage battery, including a charging pile body and an intelligent control unit, wherein the interior of the charging pile body is sealed to form an electrical compartment and a battery compartment, and the top of the battery compartment is provided with a detection component and a perfluorohexanone automatic fire extinguishing component.

[0006] A cooling fan is embedded on one side of the battery compartment, and a cooling vent is provided on the other side of the battery compartment. An energy storage battery module is installed inside the battery compartment via a guide rail assembly. A quick-change electrical interface is also provided between the inner wall of the battery compartment and the energy storage battery module. A bidirectional converter connected to the power grid is also provided in the electrical compartment.

[0007] The battery compartment has a double-layer metal structure with fireproof and heat-insulating material filling the space between it.

[0008] As a further technical solution of this utility model, the fireproof and heat-insulating material is aerogel felt.

[0009] As a further technical solution of this utility model, the communication connection between the battery compartment and the electrical compartment adopts a standardized aviation plug or Ethernet interface.

[0010] The quick-change electrical interface uses a high-current blind-mating high-voltage connector.

[0011] As a further technical solution of this utility model, the detection component includes a temperature sensor and a smoke sensor installed at the top of the battery compartment.

[0012] As a further technical solution of this utility model, a liquid cooling plate is provided at the bottom of the energy storage battery module, a sliding seat is symmetrically installed at the bottom of the liquid cooling plate, a slide rail is symmetrically installed at the bottom of the battery compartment, and the liquid cooling plate is slidably connected to the slide rail through the sliding seat.

[0013] The upper surface of the slide rail is provided with multiple positioning holes at equal intervals. The outer side of the liquid cooling plate is symmetrically and movably mounted with pins. The pins can slide up and down on the outer side of the liquid cooling plate. The liquid cooling plate slides on the slide rail and is fixed by the pins moving down and inserting into the positioning holes.

[0014] As a further technical solution of this utility model, a radiator and a circulation pump are also installed on the bottom of the outer side of the battery compartment. The liquid cooling plate is provided with a liquid cooling circulation pipe inside. The side of the liquid cooling plate is provided with an inlet and an outlet corresponding to both ends of the liquid cooling circulation pipe. The inlet and outlet are respectively connected to both ends of the liquid cooling circulation pipe.

[0015] The liquid inlet of the liquid cooling plate is connected to the output end of the circulation pump via a telescopic hose, the input end of the circulation pump is connected to the liquid outlet of the radiator, and the liquid outlet of the liquid cooling plate is connected to the liquid inlet of the radiator via a telescopic hose.

[0016] The liquid cooling plate, radiator, and circulating pump form an active liquid cooling circuit.

[0017] As a further technical solution of this utility model, the perfluorohexanone automatic fire extinguishing assembly includes a mounting bracket installed on the rear side of the battery compartment, a fire extinguishing container bottle fixed on the mounting bracket, a main delivery pipe connected to the top of the fire extinguishing container bottle, and a delivery nozzle connected to the other end of the main delivery pipe, and a control valve installed on the main delivery pipe.

[0018] The lower surface of the delivery nozzle is uniformly distributed with nozzles.

[0019] As a further technical solution of this utility model, a human-machine interaction screen is also embedded and installed on the front side of the charging pile body corresponding to the electrical compartment, and a charging gun is also provided on the side of the charging pile body.

[0020] The intelligent control unit has a built-in energy management system. Its signal input is connected to the power grid monitoring module and the battery management system, and its control output is connected to the bidirectional converter and various actuators in the cabin.

[0021] This utility model provides a buffer-type charging pile with integrated energy storage battery, which has the following advantages compared with the prior art:

[0022] 1. This design is a buffer charging pile with integrated energy storage battery. It uses detection components to monitor the internal temperature data of the battery compartment in real time, which facilitates the coordinated heat dissipation of the liquid cooling plate and the heat dissipation fan. In addition, with the cooperation of smoke sensor and perfluorohexanone automatic fire extinguishing component, fire can be extinguished in time in the event of a fire. This design integrates efficient thermal management and multi-level fire protection system to improve safety.

[0023] 2. This design is a buffer charging pile with integrated energy storage battery. By charging during off-peak hours and discharging during peak hours, it can achieve peak shaving and valley filling, smooth the power grid load curve, delay the demand for power grid capacity expansion, reduce the operating electricity cost of charging stations by utilizing the peak-valley electricity price difference, and improve economic efficiency. Attached Figure Description

[0024] Figure 1 A first structural view of a buffer charging pile with integrated energy storage battery;

[0025] Figure 2 This is a second structural view of a buffer charging pile with integrated energy storage battery.

[0026] Figure 3 This is a schematic diagram of the internal structure of the battery compartment in a buffer charging pile with integrated energy storage batteries.

[0027] Figure 4 A schematic diagram of the perfluorohexanone automatic fire extinguishing component in a buffer-type charging pile with integrated energy storage battery;

[0028] Figure 5 This is a schematic diagram of the installation of a delivery nozzle in a buffer-type charging pile with integrated energy storage battery.

[0029] Figure 6 This is a schematic diagram of the installation of the sliding rail in a buffer-type charging pile with integrated energy storage battery.

[0030] In the diagram: 1. Charging pile main body; 11. Human-machine interface screen; 12. Charging gun; 2. Battery compartment; 21. Cooling fan; 22. Cooling through hole; 23. Energy storage battery module; 24. Temperature sensor; 25. Smoke sensor; 3. Perfluorohexanone automatic fire extinguishing assembly; 31. Mounting bracket; 32. Fire extinguishing container bottle; 33. Main delivery pipe; 34. Control valve; 35. Delivery nozzle; 36. Nozzle; 4. Quick-change electrical interface; 5. Liquid cooling plate; 51. Radiator; 52. Slide base; 53. Slide rail; 54. Positioning hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-6 This utility model provides a buffer charging pile technology solution with integrated energy storage battery: A buffer charging pile with integrated energy storage battery includes a charging pile body 1 and an intelligent control unit. The charging pile body 1 has an electrical compartment and a battery compartment 2 sealed inside. The electrical compartment is also equipped with a bidirectional converter connected to the power grid, which can realize bidirectional energy flow between the power grid and the energy storage battery (i.e., energy storage battery module 23), play a buffering role, and balance the power grid load. The front side of the charging pile body 1 is also embedded with a human-machine interaction screen 11 corresponding to the electrical compartment, which is convenient for users to operate and view information. The side of the charging pile body 1 is also equipped with a charging gun 12 for charging new energy vehicles. The communication connection between the battery compartment 2 and the electrical compartment adopts a standardized aviation plug or Ethernet interface.

[0033] The intelligent control unit has a built-in energy management system (EMS). Its signal input is connected to the grid monitoring module and the battery management system (BMS) to obtain grid and battery status information in real time. Its control output is connected to the bidirectional converter (PCS) and various actuators in the compartment. The bidirectional converter is the core of the power conversion between the grid, the energy storage battery module 23 and the charging gun 12. The actuators include a cooling fan 21, a circulation pump, a control valve 34, a temperature sensor 24 and a smoke sensor 25, etc., to realize intelligent control and management of the entire charging pile system. When the grid load is low, the energy is stored in the energy storage battery module 23; when the grid load is high, the energy storage battery module 23 releases energy to supplement the grid power supply.

[0034] The intelligent control unit is the core of the system, and it achieves full-process control through the following methods:

[0035] Signal input: Connect to the power grid monitoring module (to acquire power grid data such as voltage and load) and BMS (to acquire data such as the energy storage battery's charge, temperature, and health status).

[0036] Control output: Based on the input data, regulate the energy flow of the bidirectional converter, and simultaneously control the actuators such as the cooling fan, circulation pump, and perfluorohexanone automatic fire extinguishing component in the battery compartment to ensure the efficient and safe operation of the system;

[0037] Human-computer interaction: Through the human-computer interaction screen on the main body of the charging pile, user operations (such as starting charging) and status display (such as charging progress and battery status) are realized.

[0038] The detection components include a temperature sensor 24 and a smoke sensor 25 installed at the top of the battery compartment 2. The temperature sensor 24 can monitor the temperature inside the battery compartment 2 in real time, and the smoke sensor 25 can detect smoke in a timely manner. The two work together to comprehensively monitor the safety status inside the battery compartment 2.

[0039] Furthermore, a detection component and a perfluorohexanone automatic fire extinguishing component 3 are installed at the top of the battery compartment 2. The detection component can monitor the environmental status inside the battery compartment 2 in real time. When an abnormality occurs, the perfluorohexanone automatic fire extinguishing component 3 can quickly activate to extinguish the fire. The perfluorohexanone automatic fire extinguishing component 3 includes a mounting bracket 31 installed on the rear side of the battery compartment 2. A fire extinguishing container bottle 32 is fixed on the mounting bracket 31. The top of the fire extinguishing container bottle 32 is connected to a main delivery pipe 33, and the other end of the main delivery pipe 33 is connected to a delivery nozzle 35. A control valve 34 is installed on the main delivery pipe 33. Nozzles 36 are evenly distributed on the lower surface of the delivery nozzle 35. When an abnormality is detected, the control valve 34 opens, and the perfluorohexanone extinguishing agent in the fire extinguishing container bottle 32 is sprayed out from the nozzles 36 through the main delivery pipe 33 and the delivery nozzle 35 to quickly extinguish the fire.

[0040] A cooling fan 21 is embedded in one side of the battery compartment 2, and a heat dissipation hole 22 is opened on the other side of the battery compartment 2. The cooling fan 21 is a powerful fan, which forms air convection with the heat dissipation hole 22 to initially dissipate heat from the battery compartment 2.

[0041] A quick-change electrical interface 4 is also provided between the inner wall of the battery compartment 2 and the energy storage battery module 23. The quick-change electrical interface 4 adopts a high-current blind-plug high-voltage connector to ensure the convenience and reliability of electrical connection, facilitate quick plugging and unplugging, and improve battery replacement efficiency.

[0042] The walls of battery compartment 2 are made of double-layer metal structure and filled with fireproof and heat-insulating material in the middle. The fireproof and heat-insulating material is aerogel felt, which has excellent fireproof and heat-insulating performance and can effectively prevent heat transfer and flame spread.

[0043] The energy storage battery module 23 is installed inside the battery compartment 2 via a guide rail assembly, which facilitates the installation and replacement of the energy storage battery module 23. A liquid cooling plate 5 is provided at the bottom of the energy storage battery module 23, and a slide block 52 is symmetrically installed at the bottom of the liquid cooling plate 5. A slide rail 53 is symmetrically installed at the bottom of the inner side of the battery compartment 2. The liquid cooling plate 5 is slidably connected to the slide rail 53 via the slide block 52, which facilitates the movement of the energy storage battery module 23.

[0044] Multiple positioning holes 54 are evenly spaced on the upper surface of the slide rail 53. Pins are symmetrically and movably installed on the outer side of the liquid cooling plate 5. The pins can slide up and down on the outer side of the liquid cooling plate 5. The liquid cooling plate 5 slides on the slide rail 53 and is fixed by the pins moving down and inserting into the positioning holes 54, ensuring the stable installation of the energy storage battery module 23.

[0045] A radiator 51 and a circulation pump are also installed on the bottom of the outer side of the battery compartment 2. An active liquid cooling circuit is formed between the liquid cooling plate 5, the radiator 51 and the circulation pump. The heat generated by the energy storage battery module is removed by liquid circulation, which further improves the heat dissipation effect. The liquid is the cooling medium. The liquid cooling plate 5 has a liquid cooling circulation pipe inside. The side of the liquid cooling plate 5 is equipped with an inlet and an outlet corresponding to the two ends of the liquid cooling circulation pipe. The inlet and outlet are connected to the two ends of the liquid cooling circulation pipe respectively.

[0046] The liquid inlet of the liquid cooling plate 5 is connected to the output of the circulation pump through a telescopic hose. The input of the circulation pump is connected to the outlet of the radiator 51. The outlet of the liquid cooling plate 5 is connected to the inlet of the radiator 51 through a telescopic hose. The circulation pump drives the coolant (i.e., the cooling medium) to circulate between the liquid cooling plate 5 and the radiator 51, absorbing the heat of the energy storage battery module 23 and dissipating it through the radiator 51, thus achieving efficient heat dissipation.

[0047] The working principle of this utility model is as follows: when the power grid is in a period of low load and the electricity price is low, the intelligent control unit obtains the power grid status through the power grid monitoring module, controls the bidirectional converter to draw power from the power grid, and charges the energy storage battery module 23 to achieve energy storage during off-peak hours.

[0048] When it is during peak electricity consumption and electricity prices are high, the energy management system, in conjunction with the energy storage battery status fed back by the battery management system, controls the bidirectional converter to release the electrical energy of the energy storage battery module 23 to the grid or directly power new energy vehicles (through the charging gun output), thereby achieving "peak discharge", balancing the grid load and playing a buffering role.

[0049] The heat generated by the battery during operation is absorbed by the liquid cooling plate 5 and dissipated by the liquid cooling circulation pipe and circulation pump to the radiator 51.

[0050] In addition, when the temperature sensor 24 detects that the temperature inside the battery compartment is too high, the intelligent control unit starts the cooling fan 21 to provide auxiliary cooling through the heat dissipation holes 22.

[0051] Furthermore, when the smoke sensor 25 detects a fire or the temperature sensor 24 detects that the temperature exceeds the safety threshold, the intelligent control unit controls the control valve 34 to open, and the perfluorohexanone in the fire extinguishing container bottle 32 is sprayed out through the main delivery pipe 33, the delivery nozzle 35 and the nozzle 36 to extinguish the fire.

[0052] When the energy storage battery module 23 needs maintenance or replacement, its installation and replacement are achieved through a combination of mechanical structure and electrical interface:

[0053] Mechanical positioning: The energy storage battery module 23 is fixed on the liquid cooling plate 5. The liquid cooling plate 5 slides along the slide rail 53 inside the battery compartment 2 via the bottom slide block 52, which is convenient for pushing in or pulling out of the battery compartment 2. After sliding to the target position, the pin on the outside of the liquid cooling plate 5 moves down and inserts into the positioning hole 54 of the slide rail 53 to achieve mechanical fixation.

[0054] Electrical connection: The quick-change electrical interface 4 between the inner wall of the battery compartment 2 and the energy storage battery module 23 automatically completes the electrical connection when the module is pushed into place, without the need for additional wiring; at the same time, the battery compartment 2 and the electrical compartment achieve stable communication through a standardized aviation plug or Ethernet interface to ensure normal system linkage after replacement.

[0055] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A buffer-type charging pile with integrated energy storage battery, comprising a charging pile body (1) and an intelligent control unit, characterized in that, The charging pile body (1) has an internal sealed electrical compartment and a battery compartment (2), and the electrical compartment is also equipped with a bidirectional converter connected to the power grid; The battery compartment (2) is equipped with a detection component and a perfluorohexanone automatic fire extinguishing component (3) at the top of its interior. A cooling fan (21) is embedded in one side of the battery compartment (2), and a cooling through hole (22) is opened on the other side of the battery compartment (2). An energy storage battery module (23) is installed inside the battery compartment (2) through a guide rail assembly. A quick-replacement electrical interface (4) is also provided between the inner wall of the battery compartment (2) and the energy storage battery module (23). The battery compartment (2) has a double-layer metal structure with fireproof and heat-insulating material filling the middle.

2. The buffer charging pile with integrated energy storage battery according to claim 1, characterized in that, The fireproof and heat-insulating material is aerogel felt.

3. A buffer-type charging pile with integrated energy storage battery according to claim 1, characterized in that, The communication connection between the battery compartment (2) and the electrical compartment adopts a standardized aviation plug or Ethernet interface; The quick-change electrical interface (4) adopts a high-current blind-mating high-voltage connector.

4. A buffer-type charging pile with integrated energy storage battery according to claim 1, characterized in that, The detection components include a temperature sensor (24) and a smoke sensor (25) located at the top of the interior of the battery compartment (2).

5. A buffer-type charging pile with integrated energy storage battery according to claim 1, characterized in that, The bottom of the energy storage battery module (23) is provided with a liquid cooling plate (5), and a slide block (52) is symmetrically installed on the bottom of the liquid cooling plate (5). A slide rail (53) is symmetrically installed on the inner bottom of the battery compartment (2). The liquid cooling plate (5) is slidably connected to the slide rail (53) through the slide block (52). The upper surface of the slide rail (53) is provided with a plurality of positioning holes (54) at equal intervals. The outer side of the liquid cooling plate (5) is symmetrically and movably mounted with pins. The pins can slide up and down on the outer side of the liquid cooling plate (5). The liquid cooling plate (5) slides on the slide rail (53) and is fixed by the pins moving down and inserting into the positioning holes (54).

6. A buffer-type charging pile with integrated energy storage battery according to claim 5, characterized in that, The bottom of the outer side of the battery compartment (2) is also equipped with a radiator (51) and a circulation pump, and the liquid cooling plate (5) forms an active liquid cooling circuit with the radiator (51) and the circulation pump.

7. A buffer-type charging pile with integrated energy storage battery according to claim 5, characterized in that, The perfluorohexanone automatic fire extinguishing assembly (3) includes a mounting bracket (31) installed on the rear side of the battery compartment (2), a fire extinguishing container bottle (32) is fixed on the mounting bracket (31), the top of the fire extinguishing container bottle (32) is connected to a main delivery pipe (33), and the other end of the main delivery pipe (33) is connected to a delivery nozzle (35), and a control valve (34) is installed on the main delivery pipe (33). The lower surface of the delivery nozzle (35) is uniformly distributed with nozzles (36).

8. A buffer-type charging pile with integrated energy storage battery according to claim 1, characterized in that, The front side of the charging pile body (1) is also fitted with a human-machine interaction screen (11) corresponding to the electrical compartment, and a charging gun (12) is also provided on the side of the charging pile body (1). The intelligent control unit has a built-in energy management system. Its signal input is connected to the power grid monitoring module and the battery management system, and its control output is connected to the bidirectional converter and various actuators in the cabin.

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