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CN-122025912-A - Cooling device and process for battery pack of electricity storage container

CN122025912ACN 122025912 ACN122025912 ACN 122025912ACN-122025912-A

Abstract

The invention relates to the field of cooling of distribution containers, in particular to a cooling device and a cooling process for a battery pack of a power storage container, wherein the cooling device comprises the following components: the invention discloses an energy storage container, which is characterized in that a battery frame, a liquid cooling device and a system host are arranged in a shell of the energy storage container, the battery frame is fixed on a bottom plate at the front end of the shell of the energy storage container, a plurality of groups of battery packs are arranged on the battery frame, the liquid cooling device is positioned at the rear end of the shell of the energy storage container and is connected with the battery packs through a liquid inlet pipe and a liquid outlet pipe, the liquid cooling device is communicated with the liquid inlet pipe through a liquid guide pipe, the liquid outlet pipe is communicated with the liquid cooling device through a return pipe, and the system host is positioned at the left side of the liquid cooling device.

Inventors

  • LUO YANFENG

Assignees

  • 罗燕峰

Dates

Publication Date
20260512
Application Date
20251112

Claims (10)

  1. 1. A battery pack cooling device for an electric storage container is characterized by comprising a battery frame (3), a liquid cooling device (4) and a system host (5) which are arranged in an energy storage container shell (1), wherein the battery frame (3) is fixed on a front end bottom plate of the energy storage container shell (1), a plurality of groups of battery packs (2) are arranged on the battery frame (3), the liquid cooling device (4) is arranged at the rear end of the energy storage container shell (1), the liquid cooling device (4) is connected with the battery packs (2) through liquid inlet pipes (6) and liquid outlet pipes (7), the liquid cooling device (4) is communicated with the liquid inlet pipes (6) through liquid guide pipes (8), the liquid outlet pipes (7) are communicated with the liquid cooling device (4) through backflow pipes (9), the system host (5) is arranged at the left side of the liquid cooling device (4), the system host (5) is electrically connected with the battery packs (2) through electric signal receiving ports (28), the battery packs (2) comprise cold taking shells (21), a plurality of battery blocks (22) are arranged in the cold taking shells (21), a cooling partition plate (25) is arranged between the adjacent battery blocks (22), the battery blocks (21) are arranged between the cold taking shells, the bottom plates (21) and are connected with liquid inlets (27) through liquid inlets (27) and liquid inlets (27), the inlet (215) is connected with cooling branch pipe (217) one-to-one, cooling branch pipe (217) front end sets up flow management and control portion (224), flow management and control portion (224) top sets up piston (227), piston (227) are connected with electric signal receiving port (28) through hydraulic telescopic link (225), battery piece (22) rear end sets up rotation portion one (220), rotation portion one (220) is connected with connection fixed portion one (218) through connecting band (219), connection fixed portion one (218) is connected temperature sensing portion (223) through flexible band (221), temperature sensing portion (223) outside is equipped with restriction spring (222), battery piece (22) one side sets up rotation portion two (210), rotation portion two (210) are connected with division fixed portion (216) through connection fixed portion two (29).
  2. 2. The cooling device for the battery pack of the electric storage container according to claim 1, wherein the flow control part (224) is composed of a front telescopic plate and a rear telescopic plate, springs are arranged in the telescopic plate, the rear ends of the telescopic plates are fixedly connected with the left side and the right side of the piston (227), an automatic control spring (226) is arranged on one side, close to the electric signal receiving port (28), of the piston (227), and two ends of the automatic control spring (226) are respectively connected with the piston (227) and the inner wall of the cooling shell (21).
  3. 3. The cooling device for the battery pack of the electric storage container according to claim 1, wherein the upper end and the lower end of the limiting spring (222) are respectively connected with the first connecting fixing part (218) and the temperature sensing part (223).
  4. 4. The cooling device for the battery pack of the electric storage container according to claim 1, wherein the ring pipe (228) surrounds three sides of the battery block (22), and two ends of the ring pipe (228) are respectively connected with an inlet end and an outlet end of the cooling branch pipe (217).
  5. 5. The cooling device for the battery pack of the electric storage container according to claim 1, wherein one end of the liquid guide pipe (8) is communicated with the upper end of the liquid cooling device (4), the other end of the liquid guide pipe (8) is communicated with the middle of the liquid inlet pipe (6), one end of the return pipe (9) is communicated with the lower end of the liquid outlet pipe (7), and the other end of the return pipe (9) is communicated with the lower end of the liquid cooling device (4).
  6. 6. The cooling device for the battery pack of the electric storage container according to claim 1, wherein the first rotating part (220) and the second rotating part (210) are driven by motors respectively, the first rotating part (220) is connected with a first connecting and fixing part (218) at the rear end of the battery block (22) through a connecting belt (219), and the second rotating part (210) is connected with a second connecting and fixing part (29) and a second separating and fixing part (216) at one side of the cooling partition plate (25).
  7. 7. The cooling device for the battery pack of the electric storage container according to claim 1, wherein three groups of connecting belts (219) are arranged, one end of each connecting belt (219) is connected with the corresponding rotating part I (220) in a winding mode, and the other end of each connecting belt (219) is fixedly connected with the upper end of the corresponding connecting and fixing part I (218).
  8. 8. The cooling device for the battery pack of the electric storage container according to claim 1, wherein the electric signal receiving port (28) is arranged on the side wall of the cooling shell (21), one end of the electric signal receiving port (28) is electrically connected with the system host (5), and the other end of the electric signal receiving port (28) is electrically connected with a motor of the hydraulic telescopic rod (225).
  9. 9. The cooling device for the battery pack of the electric storage container according to claim 1, wherein a liquid draining port (212) is arranged at the rear end of the cooling branch pipe (217), the liquid draining port (212) is communicated with a liquid draining main pipe (214) through a liquid draining connecting pipe (213), and the liquid draining main pipe (214) is connected with the liquid outlet pipe (7).
  10. 10. A control flow for a cooling device for a battery pack of a power storage container according to any one of claims 1 to 9, comprising the steps of: S1, setting the detection temperature of a temperature sensing part (223) as A, automatically controlling the temperature control temperature threshold value temperature to be T, pre-storing the temperature control temperature threshold value temperature into a system host, and judging and executing subsequent actions by executing software; S2, four groups of temperature sensing parts (223) measure the temperature of the battery blocks contacted with the partition boards around and among the battery packs (2), and the measured temperature A is transmitted to a system host (5) by transmitting signals; s3, comparing the temperature A with a threshold temperature T in the system host (5), if the temperature A is smaller than the threshold temperature T, then entering S4, and if the temperature A is larger than the threshold temperature T, then entering S5; S4, operating software in the system host (5) does not carry out subsequent operation, and a fine-tuning temperature control unit positioned in the battery pack (2) carries out automatic and accurate cooling on a region with higher heating temperature; S5, the operation software in the system host (5) sends an electric signal to the electric signal receiving port (28), and the electric signal receiving port (28) drives the hydraulic telescopic rod (225) to actively control the flow in the cooling branch pipe (217) after receiving the signal, so that the aim of accurately cooling is fulfilled; S6, then, the temperature A measured by the temperature sensing part (223) continuously transmits a signal to the system host (5), and then the system host (5) compares the temperature A with the threshold temperature T; S7, comparing the temperature A with a threshold temperature T in a system host (5), if the temperature A is smaller than the threshold temperature T, then entering S8 on the premise of completing S5, and if the temperature A is larger than the threshold temperature T, then continuing to maintain S5 on the premise of completing S5; and S8, the driving system host machine (5) sends a signal to the electric signal receiving port (28) to drive the hydraulic telescopic rod (225) to restore to the original state, and then the process enters S2, and the process is continued.

Description

Cooling device and process for battery pack of electricity storage container Technical Field The invention relates to the field of cooling of distribution containers, in particular to a cooling device and a cooling process for a battery pack of a power storage container. Background The energy storage technology is one of the more critical technologies in the fields of smart grids, renewable energy systems and the like. Along with the continuous progress of technology, the energy storage market application scale is gradually enlarged, and the application range is also wider and wider. In order to improve the energy utilization efficiency, the development of the technology and equipment of the energy storage container is widely focused, and the energy storage container generally comprises a battery frame and a battery pack arranged on the battery frame. At present, aiming at the difference of using scenes and the change of environmental temperature in the scenes, the temperature control required by the energy storage container is mainly that in the work of the energy storage container, the work of the battery pack releases heat, so that a large amount of heat is accumulated, and if the accumulated heat cannot be controlled timely. Dangerous situations can be caused, but the current cooling means are too single, and the unified cooling treatment is adopted, so that energy waste is caused. Therefore, how to find a more economical and efficient thermal management system for energy storage containers is one of the technical problems to be solved at present. Disclosure of Invention Therefore, the invention relates to a battery pack cooling device and a flow of a power storage container, which accurately detects the battery pack in a movement route through the back-and-forth movement of a temperature sensing part, if the temperature is not higher than a preset value, the temperature control device automatically adjusts, and if the temperature is higher than the preset value, a system host controls the battery pack to control heat dissipation, and controls the flow rate of internal cooling liquid through changing the flow rate of cooling branch pipes so as to ensure the cooling speed, and the invention realizes the purposes by the following technical scheme: A battery rack, a liquid cooling device and a system host are arranged in an energy storage container shell, the battery rack is fixed on a front end bottom plate of the energy storage container shell, a plurality of groups of battery packs are arranged on the battery rack, the liquid cooling device is located at the rear end of the energy storage container shell, the liquid cooling device is connected with the battery pack through a liquid inlet pipe and a liquid outlet pipe, the liquid cooling device is communicated with the liquid inlet pipe through a liquid guide pipe, the liquid outlet pipe is communicated with the liquid cooling device through a backflow pipe, the system host is located at the left side of the liquid cooling device, the system host is electrically connected with the battery pack through an electric signal receiving port, the battery pack comprises a cooling shell, a plurality of battery blocks are arranged in the cooling shell, a cooling partition plate is arranged between adjacent battery blocks, the bottom plate of the cooling shell is provided with a liquid inlet, the liquid inlet is communicated with the liquid inlet through a liquid inlet connecting portion, the liquid inlet is connected with the cooling portion pipe in one-to-one correspondence, the front end of the cooling portion is provided with a flow control portion, a piston is arranged above the flow control portion, the piston is connected with the electric signal receiving port through a hydraulic telescopic rod, the rear end of the battery block is provided with a rotating portion I, the rotating portion is connected with a connecting fixing portion through a connecting band, the first temperature sensing portion is connected with the first side of the connecting portion through a flexible connection, the first side temperature sensing portion is connected with the second side of the battery block, and the rotating portion is connected with the second side through a temperature sensing portion through a flexible portion. Preferably, the flow control part consists of a front telescopic plate and a rear telescopic plate, springs are arranged in the telescopic plate, the rear ends of the telescopic plates are fixedly connected with the left side and the right side of the piston, an automatic control spring is arranged on one side of the piston close to the electric signal receiving port, and two ends of the automatic control spring are respectively connected with the piston and the inner wall of the cooling shell. Preferably, the upper end and the lower end of the limiting spring are respectively connected with the first connecting fixing part and the temperature sensing part.