Energy storage battery box

Abstract

The utility model provides an energy storage battery box. The energy storage battery box comprises a box body, the battery clusters at least comprise a first battery cluster and a second battery cluster which are arranged adjacently, and a liquid cooling plate is arranged at the lower end of each battery pack; a primary pipe; a diode; the third-stage pipe comprises a third-stage liquid inlet pipe, a third-stage liquid outlet pipe and a third-stage connecting pipe; wherein the third-stage liquid inlet pipe is connected with the second-stage liquid inlet pipe to receive fresh cooling liquid, and the third-stage liquid outlet pipe is connected with the second-stage liquid outlet pipe to output cooled cooling liquid. And the third-stage connecting pipe is connected with the liquid cooling plate on the first battery cluster and the liquid cooling plate on the second battery cluster so as to enable cooling liquid to flow into the second battery cluster from the first battery cluster. Due to the arrangement of the three-stage connecting pipes in the energy storage battery box, the number of cooling pipes used in a liquid cooling system is reduced, and the space utilization rate of the battery box is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy storage, especially to a kind of energy storage battery box. BACKGROUND

[0002] With the increasingly serious global energy crisis and environmental pollution, people's demand for electricity is higher and higher, new energy enters the rapid development period, especially the development of new energy battery.At present, new energy lithium battery is widely used in energy storage field and new energy vehicle field, and lithium battery has the advantages of high energy density, small self-discharge, superior cycle performance, long service life and wide working temperature range.

[0003] However, during the operation of the new energy storage system, the battery will generate a large amount of heat. In order to prevent the battery from overheating, the energy storage system will integrate a liquid cooling system to cool the battery. The liquid cooling system in the prior art includes a liquid cooling unit, a liquid cooling pipeline and a battery pack bottom liquid cooling plate. The liquid cooling unit exchanges heat with the external environment of the system to reduce the temperature of the cooling liquid. The liquid cooling pipeline connects the liquid cooling unit and the battery pack liquid cooling plate to send the cooling liquid to each liquid cooling plate and recover the cooling liquid from each liquid cooling plate after heat exchange with the battery. With the rapid development of energy storage systems, how to ensure that in the case of low rate or insufficient container space, the liquid cooling efficiency of the energy storage system is improved by reasonably arranging the space structure of the liquid cooling machine, liquid cooling pipe and battery pack, and the problem of heat dissipation of the energy storage system becomes an urgent problem in the industry. UTILITY MODEL CONTENT

[0004] In order to solve the problems in the prior art, the utility model provides an energy storage battery box, comprising: a box body, a liquid cooling machine is arranged on one side of the box body; a battery cluster, at least comprising a first battery cluster and a second battery cluster arranged adjacent to each other, wherein each battery cluster comprises a plurality of battery packs arranged in order from top to bottom, and a liquid cooling plate is arranged at the lower end of each battery pack; a first-level pipe comprising a first-level inlet pipe and a first-level outlet pipe, the first-level inlet pipe is configured to be connected with the liquid cooling machine and receive the cooling liquid delivered from the liquid cooling machine; a second-level pipe comprising a second-level inlet pipe and a second-level outlet pipe; a third-level pipe comprising a third-level inlet pipe, a third-level outlet pipe and a third-level connecting pipe; wherein the third-level inlet pipe is connected with the second-level inlet pipe to receive fresh cooling liquid, the third-level outlet pipe is connected with the second-level outlet pipe to output the cooled cooling liquid, and the third-level connecting pipe connects the liquid cooling plate on the first battery cluster and the liquid cooling plate on the second battery cluster to flow the cooling liquid from the first battery cluster to the second battery cluster.

[0005] Further, a plurality of third-level connecting pipes arranged in order from top to bottom are included.

[0006] Further, the battery cluster can be divided into a plurality of groups of battery clusters, and each group of battery clusters comprises the first battery cluster and the second battery cluster arranged adjacent to each other.

[0007] Further, the secondary pipe is configured to be bendable.

[0008] Further, the secondary pipe is made of nylon material.

[0009] Further, the liquid cooling machine is arranged at one side of the box body, and the tertiary connecting pipe is arranged at another side of the box body.

[0010] Further, the tertiary liquid inlet pipe is configured to be a bendable structure.

[0011] The energy storage battery box can realize uniform distribution of the cooling liquid in the first battery cluster and the second battery cluster to each battery pack, the liquid cooling pipe system has simple structure, is convenient to manufacture and install, has low cost, has high universality, can greatly improve the cooling efficiency of the liquid cooling system, can better cool the battery in the battery box, and the arrangement of the tertiary connecting pipe also saves the number of cooling pipes in the liquid cooling system, and improves the space utilization of the battery box. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Figure 1 It is a part structure schematic view of the energy storage battery box of the utility model;

[0014] Figure 2 It is a structure schematic view of the liquid cooling pipe system of the first embodiment of the energy storage battery box of the utility model;

[0015] Figure 3 It is a structure schematic view of the liquid cooling pipe system of the second embodiment of the energy storage battery box of the utility model. DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model will be described in detail below in combination with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0017] Unless otherwise defined, the technical and scientific terms used in the utility model have the same meaning as that commonly understood by those skilled in the art to which the utility model belongs.

[0018] As Figure 1As shown, the utility model provides a kind of energy storage battery box, including: box, the side of box is provided with liquid cooling machine (not shown);First battery cluster 40 and the second battery cluster 50 being adjacent to the first battery cluster 40, second battery cluster includes the multiple battery packs 501 sequentially arranged from top to bottom, and the lower end of each battery pack 501 is provided with liquid cooling plate 502;Liquid cooling plate 502 is made of hollow sheet material, and multiple pipelines are arranged in it to flow cooling liquid.In the embodiment, one liquid cooling plate 502 is arranged between the upper and lower battery packs 501 of one battery cluster, so that when the energy storage box is running, the heat generated by the battery in the battery pack can be cooled by the liquid cooling plate 502, to reduce the temperature of each battery in the battery pack 501 and carry away heat by the cooling liquid in the liquid cooling plate.The structure of the first battery cluster 40 is the same as that of the second battery cluster 50, and will not be repeated again.In the embodiment, multiple groups of battery clusters are arranged in the battery box, each group of battery clusters includes first battery cluster 40 and second battery cluster 50 arranged adjacent to each other, and the first battery cluster 40 and the second battery cluster 50 include eight battery packs sequentially arranged from top to bottom, and the first battery cluster 40 and the second battery cluster 50 are arranged in parallel in the left-right direction.The number of battery cluster groups of the battery box of the utility model can be set differently, for example, it can be 2 groups, 4 groups, 8 groups or more, and the number of battery cluster groups can be set differently as needed, so that the arrangement of the liquid cooling pipe system will also be different.As shown in the figure, Figure 2 As shown, the liquid cooling pipe system schematic diagram when 2 groups of battery clusters are arranged in the battery box, as shown in the figure, Figure 3 The liquid cooling pipe system structure schematic diagram for the battery box with 4 groups of battery clusters.The liquid cooling pipe system of the utility model includes first level pipe 10, second level pipe 20 and third level pipe 30 connected to each other.The first level pipe 10 includes first level inlet pipe 101 and first level outlet pipe 102;Liquid cooling machine (not shown) is arranged on one side of the box, and one end of the first level inlet pipe 101 is connected with the liquid cooling machine to receive the cooling liquid delivered from the liquid cooling machine (not shown).

[0019] The secondary pipe 20 comprises a secondary liquid inlet pipe 201 and a secondary liquid outlet pipe 202, and is configured by a flexible material such as nylon and is configured to be foldable according to the shape of the box body or the battery pack box body, so as to arrange the space in the battery box and improve the space utilization of the battery box and the liquid cooling effect of the batteries in the battery box. The tertiary pipe 30 comprises a tertiary liquid inlet pipe 301, a tertiary liquid outlet pipe 302 and a tertiary connecting pipe 303, the tertiary liquid inlet pipe 301 is connected with the secondary liquid inlet pipe 201 to receive fresh cooling liquid, the tertiary liquid outlet pipe 302 is connected with the secondary liquid outlet pipe 202 to output the cooled cooling liquid, and the tertiary connecting pipe 303 is connected with the liquid cooling plate on the first battery cluster and the liquid cooling plate on the second battery cluster to flow the cooling liquid from the first battery cluster to the second battery cluster. Specifically, the tertiary connecting pipe 303 is connected with the liquid cooling plate on the first battery cluster and the liquid cooling plate on the second battery cluster, one end of the tertiary connecting pipe 303 is connected with the liquid outlet of the liquid cooling plate on the first battery cluster, and the other end of the tertiary connecting pipe 303 is connected with the liquid inlet of the liquid cooling plate on the second battery cluster, so that the cooling liquid can flow from the first battery cluster to the second battery cluster, and thus the cooling liquid flowing into the secondary liquid inlet pipe 201 can flow from the first battery cluster to the second battery cluster, and the tertiary connecting pipe 303 connects the battery packs of the first battery cluster and the second battery cluster in series, in the embodiment, the liquid cooling machine is arranged on the left side of the box body, the tertiary connecting pipe is arranged at the front end of the box body, and the tertiary liquid outlet pipe is configured as a foldable structure, so that the positions of various components in the box body can be reasonably arranged and the installation is convenient.

[0020] The energy storage battery box can realize uniform distribution of the cooling liquid in the first battery cluster and the second battery cluster to each battery pack, the liquid cooling pipe system has simple structure, convenient manufacturing and installation, low cost and strong universality. Especially when the energy storage box is provided with multiple battery clusters inwardly, the cooling liquid output by the primary liquid inlet pipe can be evenly distributed to each group of battery clusters through the secondary liquid inlet pipe, the secondary liquid inlet pipe can transport the cooling liquid to the tertiary liquid inlet pipe in each group of battery clusters through the tertiary liquid inlet pipe, and the cooling liquid in one group of battery clusters can be evenly distributed to two battery clusters in the group. Compared with the existing liquid cooling pipe system in which the cooling liquid of the secondary liquid inlet pipe is directly input to each battery cluster without the tertiary pipe, the cooling liquid flow passing through the liquid cooling plate at the lower end of each battery pack in the energy storage battery box is twice that of the conventional design, so that the cooling efficiency of the liquid cooling system can be greatly improved, and the batteries in the battery box can be better cooled. Moreover, the setting of the tertiary connecting pipe saves the number of cooling pipes in the liquid cooling system and improves the space utilization of the battery box.

[0021] The above only describes the preferred embodiments of the utility model and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An energy storage battery box, comprising: The enclosure has a liquid cooler installed on one side. The battery cluster includes at least a first battery cluster and a second battery cluster arranged adjacent to each other, wherein each battery cluster includes a plurality of battery packs arranged sequentially from top to bottom, and a liquid cooling plate is provided at the lower end of each battery pack; The primary pipe includes a primary inlet pipe and a primary outlet pipe. The primary inlet pipe is configured to connect to the liquid chiller and receive the coolant supplied from the liquid chiller. The secondary tube includes a secondary inlet tube and a secondary outlet tube; A three-stage cooling system includes a three-stage inlet pipe, a three-stage outlet pipe, and a three-stage connecting pipe; wherein the three-stage inlet pipe is connected to the two-stage inlet pipe to receive fresh coolant, and the three-stage outlet pipe is connected to the two-stage outlet pipe to output the cooled coolant, characterized in that... The three-stage connecting pipe connects the liquid cooling plate on the first battery cluster and the liquid cooling plate on the second battery cluster to allow coolant to flow from the first battery cluster to the second battery cluster.

2. The energy storage battery box as described in claim 1, characterized in that, It includes multiple three-stage connecting pipes arranged sequentially from top to bottom.

3. The energy storage battery box as described in claim 1, characterized in that, The battery cluster can be divided into multiple battery clusters, and each battery cluster includes the adjacent first battery cluster and second battery cluster.

4. The energy storage battery box as described in claim 1, characterized in that, The secondary tube is designed to be flexible.

5. The energy storage battery box as described in claim 1, characterized in that, The diode is made of nylon material.

6. The energy storage battery box as described in claim 1, characterized in that, The liquid chiller is located on one side of the housing, and the three-stage connecting pipe is located on the other side of the housing.

7. The energy storage battery box as described in claim 1, characterized in that, The three-stage inlet pipe has a bendable structure.

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