Co-pipe conveying device for energy storage device

Abstract

The utility model relates to the technical field of energy storage devices, in particular to a common pipe conveying device for an energy storage device, which comprises a plurality of battery module shells, battery cells and a cooling plate, the cooling plate is fixed on the battery module shells, the battery cells are fixed on the top of the cooling plate, and the battery module shells are communicated with a nitrogen pipeline. The multiple cooling plates are communicated with the cooling liquid pipeline, the cooling liquid pipeline is arranged in the nitrogen pipeline, the cooling liquid box is communicated with the cooling liquid pipeline, the cooling liquid pipeline at the inlet end of the cooling liquid box is provided with a first inlet valve, the cooling liquid pipeline at the outlet end of the cooling liquid box is provided with a first outlet valve, and the nitrogen box is communicated with the nitrogen pipeline. The nitrogen pipeline at the inlet end of the nitrogen box is provided with a second inlet valve, the nitrogen pipeline at the outlet end of the nitrogen box is provided with a second outlet valve, and the nitrogen pipeline and the cooling liquid share the pipelines to convey nitrogen and cooling liquid, so that wiring in the energy storage system is simplified, the space utilization rate is improved, and meanwhile, the safety and reliability of the system are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy storage device, specifically a kind of common pipe conveying device for energy storage device. BACKGROUND

[0002] With the wide application of electrochemical energy storage battery, especially the large-scale use of lithium ion battery, the safety and heat dissipation of battery are increasingly concerned by people. Therefore, liquid cooling technology and nitrogen protection technology are applied in energy storage battery to realize the cooling and flame-retardant protection of battery. However, the internal wiring of traditional energy storage system is complex, including high-voltage power cable, low-voltage communication cable, cooling liquid inlet and outlet pipe and nitrogen inlet and outlet pipe, which not only affects the safety and reliability of the system, but also reduces the space utilization of the system.

[0003] The Chinese invention patent with publication number CN102760920B was published on September 17, 2014, which discloses a vehicle power battery pack liquid nitrogen cooling method and device. The device uses the large amount of heat absorbed by liquid nitrogen during vaporization to cool the surface of the power battery pack and each battery core shell after vaporization of liquid nitrogen, which has good cooling effect and easy-to-control cooling temperature, ensures the electric energy of the power battery pack during charging and discharging, has good performance of the power battery pack, prolongs the service life of the power battery pack, and avoids the safety hazard caused by high temperature of the power battery pack. However, the nitrogen system and the cooling liquid system are relatively independent, and the space utilization of the device is low. UTILITY MODEL CONTENT

[0004] In view of the above technical problems, the utility model provides a common pipe conveying device for energy storage device, which conveys nitrogen and cooling liquid through common pipeline, simplifies the internal wiring of energy storage system, improves the space utilization, and enhances the safety and reliability of the system.

[0005] To achieve the above purpose, the utility model provides the following technical scheme,

[0006] A common pipe conveying device for energy storage device includes a battery module shell, a battery core and a cooling plate. The cooling plate is fixed to the battery module shell, and the battery core is fixed to the top of the cooling plate. A plurality of battery module shells are connected to the nitrogen pipeline, a plurality of cooling plates are connected to the cooling liquid pipeline, and the cooling liquid pipeline is arranged inside the nitrogen pipeline.

[0007] Further, the cooling liquid tank is connected to the cooling liquid pipeline, the cooling liquid pipeline at the inlet end of the cooling liquid tank is provided with a first inlet valve, and the cooling liquid pipeline at the outlet end of the cooling liquid tank is provided with a first outlet valve.

[0008] Further, the nitrogen tank is connected to the nitrogen pipeline, the nitrogen pipeline at the inlet end of the nitrogen tank is provided with a second inlet valve, and the nitrogen pipeline at the outlet end of the nitrogen tank is provided with a second outlet valve.

[0009] Further, the battery cell is electrically connected with the temperature sensor.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] 1、The utility model discloses a common pipeline is transported nitrogen and coolant, has simplified the wiring of the inside of energy storage system, has improved the space utilization, and nitrogen can insulate the hot out -of -control battery cell with air, plays the role of fire fighting and extinguishing, strengthens the safety reliability of system.

[0012] 2、The utility model discloses double -protected coolant, after the coolant pipeline of battery module shell inside breaks down, the leakage will first gather in the inside of cooling plate, and the cooling plate will only leak to the battery module shell after being damaged, and the double -protected structure effectively prevents the battery from being damaged due to coolant leakage, further strengthens the safety of system. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the structural schematic diagram of the utility model;

[0014] Fig. 2 It is the internal structure schematic diagram of the utility model.

[0015] The reference numerals in the drawings are:

[0016] 1、Battery module shell;2、Battery cell;3、Cooling plate;4、Coolant pipeline;41、First inlet valve;42、First outlet valve;43、Coolant tank;5、Nitrogen pipeline;51、Second inlet valve;52、Second outlet valve;53、Nitrogen tank. DETAILED DESCRIPTION

[0017] As Figs. 1-2 Shown, the common pipeline conveying device for energy storage device of the embodiment, including battery module shell 1, battery cell 2 and cooling plate 3, cooling plate 3 is fixed to battery module shell 1, battery cell 2 is fixed to the top of cooling plate 3, a plurality of battery module shell 1 is linked with nitrogen pipeline 5, a plurality of cooling plate 3 is linked with coolant pipeline 4, and the coolant pipeline 4 is arranged in the inside of nitrogen pipeline 5.

[0018] The utility model discloses a common pipeline is transported nitrogen and coolant, has simplified the wiring of the inside of energy storage system, has improved the space utilization, and nitrogen can insulate the hot out -of -control battery cell with air, plays the role of fire fighting and extinguishing, strengthens the safety reliability of system. The utility model discloses double -protected coolant, after the coolant pipeline of battery module shell inside breaks down, the leakage will first gather in the inside of cooling plate, and the cooling plate will only leak to the battery module shell after being damaged, and the double -protected structure effectively prevents the battery from being damaged due to coolant leakage, further strengthens the safety of system.

[0019] Further, the cooling liquid tank 43 is communicated with the cooling liquid pipeline 4, the cooling liquid pipeline 4 at the inlet end of the cooling liquid tank 43 is provided with a first inlet valve 41, and the cooling liquid pipeline 4 at the outlet end of the cooling liquid tank 43 is provided with a first outlet valve 42.

[0020] The first inlet valve 41 and the first outlet valve 42 are used to control the inlet and outlet of the cooling liquid, the cooling liquid tank 43 is communicated with the pipeline of the external cooling liquid, the cooling liquid that does not meet the requirement after being used for many times can be discharged, and the cooling liquid can be input when the cooling liquid in the cooling liquid tank 43 is insufficient; if the cooling liquid pipeline 4 is damaged, the first outlet valve 42 needs to be closed.

[0021] Further, the nitrogen tank 53 is communicated with the nitrogen pipeline 5, the nitrogen pipeline 5 at the inlet end of the nitrogen tank 53 is provided with a second inlet valve 51, and the nitrogen pipeline 5 at the outlet end of the nitrogen tank 53 is provided with a second outlet valve 52.

[0022] The second inlet valve 51 and the second outlet valve 52 are used to control the inlet and outlet of the nitrogen, the nitrogen tank 53 is communicated with the pipeline of the external nitrogen, the nitrogen that does not meet the requirement after being used for many times can be discharged, and the nitrogen can be input when the nitrogen in the nitrogen tank 53 is insufficient; if the nitrogen pipeline 5 is damaged, the second outlet valve 52 needs to be closed.

[0023] Further, the battery cell 2 is electrically connected with the temperature sensor.

[0024] The temperature sensor detects the temperature of the battery cell 2 in real time.

[0025] The use method of the utility model is:

[0026] According to the requirement of use, the first outlet valve 42 and / or the second outlet valve 52 are opened at the same time, the cooling liquid and / or the nitrogen sequentially pass through each battery cell 2 and / or cooling plate 3, and then flow back to the cooling liquid tank 43 and / or the nitrogen tank 53 through the first inlet valve 41 and / or the second inlet valve 51, that is, one cooling is completed.

[0027] When in use, if the cooling liquid pipeline 4 is damaged, the first outlet valve 42 needs to be closed; if the nitrogen pipeline 5 is damaged, the second outlet valve 52 needs to be closed.

[0028] The above-mentioned is only the preferable specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. A common pipe conveying device for energy storage devices, comprising a battery module shell (1), an electric core (2) and a cooling plate (3), the cooling plate (3) is fixed to the battery module shell (1), and the electric core (2) is fixed to the top of the cooling plate (3), characterized in that, A plurality of battery module housings (1) are connected to a nitrogen gas pipeline (5), and a plurality of cooling plates (3) are connected to a cooling liquid pipeline (4), wherein the cooling liquid pipeline (4) is arranged inside the nitrogen gas pipeline (5).

2. A co-pipe delivery device for an energy storage device according to claim 1, wherein, A cooling liquid tank (43) is connected to the cooling liquid pipeline (4), wherein the cooling liquid pipeline (4) at the inlet end of the cooling liquid tank (43) is provided with a first inlet valve (41), and the cooling liquid pipeline (4) at the outlet end of the cooling liquid tank (43) is provided with a first outlet valve (42).

3. A co-pipe delivery device for an energy storage device as defined in claim 1, wherein, A nitrogen gas tank (53) is connected to the nitrogen gas pipeline (5), wherein the nitrogen gas pipeline (5) at the inlet end of the nitrogen gas tank (53) is provided with a second inlet valve (51), and the nitrogen gas pipeline (5) at the outlet end of the nitrogen gas tank (53) is provided with a second outlet valve (52).

4. A co-pipe delivery device for an energy storage device as defined in claim 1, wherein, The battery cell (2) is electrically connected to the temperature sensor.

Images