CN219534645U - Energy storage liquid cooling system - Google Patents

Abstract

The utility model discloses an energy storage liquid cooling system. Wherein, this energy storage liquid cooling system includes: the battery module comprises a plurality of battery monomers, a liquid cooling pipe is arranged in the battery module, and the liquid cooling pipe is used for conveying cooling liquid conveyed by the liquid cooling unit so as to cool the battery module; the DC-DC converter is connected with the battery module through a first circuit and a second circuit respectively, and is arranged in the vertical direction with the battery module, wherein the first circuit is used for transmitting voltage, and the second circuit is used for collecting signals. The utility model solves the technical problems that the connection mode of the DC-DC and the battery is complex, the wiring is more, the internal space of the liquid cooling system is seriously wasted, the circuit of the liquid cooling system is easy to damage in the transportation process, the use stability of the product is affected, and the subsequent maintenance cost is higher in the related art.

Description

Energy storage liquid cooling system

Technical Field

The utility model relates to the technical field of energy storage, in particular to an energy storage liquid cooling system.

Background

Fig. 1 is a schematic structural diagram of an integrated liquid cooling system in the related art, as shown in fig. 1, in the liquid cooling system in the related art, DC-DC is in a central layout, each DC-DC can control 6 batteries, connection lines among the 6 batteries are as shown in the drawing, the batteries need a long lead wire to be connected to the DC-DC, the connection mode leads to a large number of connection lines in a stand column, the process is complex, the internal space is seriously wasted, and meanwhile, in the actual transportation process, the connection points are loosened due to gravity deformation, so that problems such as short circuit, liquid leakage and the like are frequent.

In view of the above problems, no effective solution has been proposed at present.

Disclosure of Invention

The embodiment of the utility model provides an energy storage liquid cooling system, which at least solves the technical problems that the connection mode of DC-DC and a battery is complex, wiring is more, the internal space of the liquid cooling system is seriously wasted, the circuit of the liquid cooling system is easy to damage in the transportation process, the use stability of a product is influenced, and the subsequent maintenance cost is higher in the related art.

According to an aspect of an embodiment of the present utility model, there is provided an energy storage liquid cooling system including: the battery module comprises a plurality of batteries, and a liquid cooling pipe is arranged in the battery module and used for conveying cooling liquid conveyed by the liquid cooling unit so as to cool the battery module; the DC-DC converter is connected with the battery module through a first circuit and a second circuit respectively, and is arranged in the vertical direction with the battery module, wherein the first circuit is used for transmitting voltage, and the second circuit is used for collecting signals.

Optionally, the liquid cooling pipe is placed on the horizontal direction of each battery in the battery module, and the first circuit and the second circuit are vertically arranged.

Alternatively, the battery module is placed above the DC-DC converter in the vertical direction.

Alternatively, the battery module is placed under the DC-DC converter in the vertical direction.

Alternatively, the DC-DC converter is placed at an intermediate position of the battery module in the vertical direction.

Optionally, the DC-DC converter is plural; the DC-DC converter is disposed at a vertical interval from the battery modules, wherein each predetermined number of battery modules share the same DC-DC converter.

Optionally, the energy storage liquid cooling system further comprises: and the battery management system BMS is connected to the battery module through a third line, wherein the BMS is used for collecting the voltage of the battery module and the temperature of the battery module through the third line.

Optionally, the battery module is provided with a main power switch, and the BMS issues a control instruction for turning off the main power switch to the battery module when the BMS determines that the collected voltage is greater than a first threshold or the temperature is greater than a second threshold.

Optionally, the DC-DC converter is provided in a separate cabinet, which is cooled in an air-cooled mode.

Optionally, at least one face of the case is provided with a predetermined number of ventilation holes to form convection with the external environment.

In the embodiment of the utility model, a mode of adjusting the arrangement mode of the DC-DC and the battery to be vertical distribution is adopted, and the technical scheme specifically comprises the following steps: the battery module comprises a plurality of batteries, and a liquid cooling pipe is arranged in the battery module and used for conveying cooling liquid conveyed by the liquid cooling unit so as to cool the battery module; the DC-DC converter is connected with the battery module through a first circuit and a second circuit respectively, the DC-DC converter is placed in the vertical direction with the battery module, wherein the first circuit is used for transmitting voltage, the second circuit is used for collecting signals, the purpose that the arrangement mode of DC-DC and batteries is adjusted to be vertical distribution is achieved, the first circuit and the second circuit can also be vertically connected is achieved, the technical problems that the connection mode of DC-DC and batteries is configured, damage to product circuits and interfaces in the transportation process is reduced, the stability of products is improved, the subsequent maintenance cost is reduced, the production efficiency is improved, the technical effects that the connection mode of DC-DC and batteries in the related art is complex, the wiring is more, the internal space of a liquid cooling system is seriously wasted, the circuits of the liquid cooling system are easy to damage in the transportation process, the use stability of products is affected, and the subsequent maintenance cost is high are solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of an integrated liquid cooling system in the related art;

FIG. 2 is a schematic diagram of an alternative energy storage and liquid cooling system according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an alternative battery module and DC-DC converter layout according to an embodiment of the utility model;

FIG. 4 is a schematic diagram of an alternative battery module and DC-DC converter layout according to an embodiment of the utility model;

FIG. 5 is a schematic diagram of an alternative battery module and DC-DC converter layout according to an embodiment of the utility model;

FIG. 6 is a schematic diagram of an operator operating a DC-DC module in the energy-storing and liquid-cooling system in the middle of each vertical battery module according to an embodiment of the present utility model;

in the above figures: 10. a battery module; 101. a battery; 102. a liquid-cooled tube; 20. a DC-DC converter; 201. a first line; 202. and a second line.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

To facilitate a better understanding of embodiments of the present utility model, technical terms or terms related to the present utility model will now be explained as follows:

DC-DC converter: the DC-DC converter is a voltage converter that converts an input voltage and effectively outputs a fixed voltage. DC/DC converters fall into three categories: step-up DC/DC converter, step-down DC/DC converter, and step-up DC/DC converter.

BMS (Battery Management System ): the intelligent management system is mainly used for intelligently managing and maintaining each battery unit, preventing the battery from being overcharged and overdischarged, prolonging the service life of the battery and monitoring the state of the battery.

Three common cooling modes in the energy storage field:

(1) And (5) naturally cooling. Natural cooling is a cooling mode that takes heat away by utilizing the high thermal conductivity of a metal material and radiates the heat into the air. I.e. natural convection without specific wind speed requirements, the cooling fins used are copper aluminum sheet, aluminum extrusion, machining or alloy castings.

(2) Forced air cooling. Forced convection is used for heat dissipation, and in case of special wind speed requirement, the wind speed can be used for realizing convection through a special or system-level fan. The fan radiator, the high-density toothed plate component and the heat exchanger are configured to generate opposite impact or cross airflow environments, so that heat is taken away in an accelerating way, and the heat dissipation efficiency is improved. The air cooling can be used together with a fluid phase change heat dissipation technology, and the fluid phase change is generally implemented by adopting a closed copper heat pipe and performing heat dissipation through rapid cycle evaporation and condensation of liquid with low boiling point. Integrating heat pipes in a heat sink can further improve heat dissipation capability if the product has high density and space constraints.

(3) Liquid cooling technology. Liquid cooling applications refer to the use of liquid cooled cooling plates (also known as water cooled heat sinks) mounted at a heat source, in combination with heat exchangers and heat exchange pumps, to dissipate heat in a fluid circulation manner. In general, the liquid cooling technology is applied in an environment where the heat energy density is extremely high and the heat dissipation effect cannot be achieved by the forced convection or phase change system.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements but may include other elements not expressly listed as inherent to such process, article, or apparatus.

FIG. 2 is an energy storage liquid cooling system according to an embodiment of the present utility model, as shown in FIG. 2, comprising:

the battery module 10, the battery module 10 includes a plurality of batteries 101, a liquid cooling pipe 102 is arranged in the battery module 10, and the liquid cooling pipe 102 is used for conveying cooling liquid conveyed by the liquid cooling unit so as to cool the battery module 10;

the direct current-Direct Current (DC) -DC converter 20, the DC-DC converter 20 is connected with the battery module 10 through a first line 201 and a second line 202 respectively, the DC-DC converter 20 is arranged in the vertical direction with the battery module 10, wherein the first line 201 is used for transmitting voltage, and the second line 202 is used for collecting signals.

It is easy to notice that, by adopting a mode of adjusting the arrangement mode of the DC-DC and the battery to be vertical distribution, the technical scheme specifically comprises the following steps: the battery module 10, the battery module 10 includes a plurality of batteries 101, a liquid cooling pipe 102 is arranged in the battery module 10, and the liquid cooling pipe 102 is used for conveying cooling liquid conveyed by the liquid cooling unit so as to cool the battery module 10; the direct current-direct current DC-DC converter 20, the DC-DC converter 20 is connected with the battery module 10 through first circuit 201, the second circuit 202 respectively, the DC-DC converter 20 is placed with the battery module 10 in the vertical direction, wherein, first circuit 201 is used for transmitting voltage, the second circuit 202 is used for gathering the signal, can reach the mode of arranging DC-DC and battery and adjust to vertical distribution, and then make the mode of first circuit 201 and the mode of connecting transversely originally of second circuit 202 adjust to vertical connection, realized through configuration DC-DC and battery's connected mode, reduce the damage to product circuit, interface in the transportation, the stability of product has been improved, reduce follow-up maintenance cost, the technological effect of production efficiency is improved, and then DC-DC and battery connected mode is more complicated in the correlation technique has been solved, the wiring is more, the liquid cooling system inner space waste that leads to is serious, and in the transportation, the circuit of liquid cooling system is easy to damage, the stability of product use is influenced, and the higher technical problem of follow-up maintenance cost.

Optionally, as shown in fig. 2, the liquid cooling pipes 102 are disposed in the horizontal direction of each battery 101 in the battery module 10, and the first circuit 201 and the second circuit 202 are vertically arranged, it is understood that the liquid cooling pipes 102 can transmit the cooling liquid from the liquid cooling unit, so as to achieve the purpose of cooling the batteries 101 in the battery module 10.

Fig. 3 is a schematic diagram of a layout manner of a battery module and a DC-DC converter in an embodiment of the present utility model, as shown in fig. 3, the battery module 10 is placed above the DC-DC converter 20 along a vertical direction, and it should be noted that in this embodiment, the DC-DC converter 20 may be disposed in a separate box, and an air cooling mode is adopted to cool, so that the technical purposes of facilitating wiring and ensuring stability in the lifting and transportation process of a product can be achieved.

Fig. 4 is a schematic diagram of another layout manner of a battery module and a DC-DC converter according to an embodiment of the present utility model, as shown in fig. 4, the battery module 10 is placed below the DC-DC converter 20 along a vertical direction, and it should be noted that, in general, the weight of the DC-DC converter 20 is smaller than that of the battery module 10, so that by this layout manner, the center of gravity can be moved downward after the DC-DC is set up, so as to enhance the stability of the product; similarly, in this embodiment, the DC-DC converter 20 may be disposed in an independent box, and cooled in an air-cooled mode, in this way, the technical purposes of facilitating wiring and ensuring stability during product lifting and transportation may be achieved.

Fig. 5 is a schematic diagram illustrating an alternative layout of a battery module and a DC-DC converter according to an embodiment of the present utility model, and as shown in fig. 5, the DC-DC converter 20 is disposed at an intermediate position of the battery module 10 in the vertical direction. It is understood that when the DC-DC converter 20 is placed at the middle position of the battery module 10 in the vertical direction, the number of battery modules 10 placed above and below the DC-DC converter 20 is the same. It should be noted that, in the illustrated solution, the liquid cooling tube 102 may maintain a single-module liquid injection and liquid outlet state, and the first line 201, that is, the cable, and the second line 202, that is, the signal line, adopt a vertical connection manner, so that an operator may perform operations such as wiring on the front sides of the battery module and the DC-DC module, and improve wiring efficiency. Meanwhile, as shown in fig. 6, when the DC-DC module in the energy storage and liquid cooling system is arranged in the middle of each vertical battery module 10, the display control man-machine interface and the operation panel of the DC-DC can be at a more proper man-machine height, so that the operator can observe and maintain conveniently.

In some embodiments of the present utility model, in the case where the DC-DC converter 20 is plural, the DC-DC converter 20 may be disposed at intervals in the vertical direction from the battery modules 10, wherein the same DC-DC converter 20 is shared by every predetermined number of battery modules 10. For example, assuming that there are 8 battery modules 10 in total, the battery modules 10 may be equally divided into 4 groups, that is, two battery modules 10 in each group may share one DC-DC converter 20 for each two battery modules 10, it will be understood that for the above-described spaced-apart embodiment, one DC-DC converter 20 may be placed first, then two battery modules 10 may be placed, and in turn, the remaining three DC-DC converters 20 and the remaining six battery modules 10 may be placed first, then the DC-DC converters 20 may be placed again, and in turn, the remaining three DC-DC converters 20 and the remaining six battery modules 10 may be placed.

In an alternative embodiment, the energy storage liquid cooling system further comprises: the battery management system BMS is connected to the battery module 10 through a third line, wherein the BMS can collect the voltage of the battery module 10 and the temperature of the battery module 10 through the third line.

Alternatively, a voltage sensor and a temperature sensor may be provided in the battery module 10, and the BMS may collect the voltage detected by the voltage sensor and the temperature detected by the temperature sensor through a third line, it is easily noted that the third line is a line for transmitting signals, which may be various types of signal lines such as a communication cable, a USB, and the like.

As an alternative embodiment, the battery module 10 is further provided with a general power switch, and the BMS issues a control command for turning off the general power switch to the battery module 10 for controlling the battery module 10 to stop supplying power to the external device in case that the BMS determines that the collected voltage is greater than the first threshold value or the collected temperature is greater than the second threshold value. It can be appreciated that when the voltage or the temperature of the battery module 10 is too high, the potential safety hazard is easily caused, and therefore, when the voltage or the temperature of the battery module 10 is detected to be not within the proper controllable range, the BMS issues the control command to close the operation of the battery module 10, so that the stable and safe operation of the liquid cooling energy storage system can be ensured.

It should be noted that the above-mentioned total power switch includes, but is not limited to: MOS switch, relay switch.

In some embodiments of the present utility model, the DC-DC converter 20 may be provided in a separate cabinet that is cooled in an air-cooled mode. Specifically, at least one surface of the box body is provided with a preset number of ventilation holes to form convection with the external environment, so as to cool the DC-DC converter 20, so as to avoid overhigh operation temperature of the DC-DC converter 20.

The utility model also provides a processor for running a program, wherein the program executes the above embodiments.

It should be noted that, for the preferred implementation of the above embodiment, reference may be made to the related descriptions of fig. 2 to 6, which are not repeated here.

In summary, the present utility model adopts a manner of adjusting the arrangement manner of the DC-DC and the batteries to be vertically distributed, specifically, the battery module 10 includes a plurality of batteries 101, the battery module 10 is provided with a liquid cooling pipe 102, and the liquid cooling pipe 102 is used for transmitting the cooling liquid conveyed by the liquid cooling unit so as to cool the battery module 10; the direct current-direct current DC-DC converter 20, the DC-DC converter 20 is connected with the battery module 10 through first circuit 201, the second circuit 202 respectively, the DC-DC converter 20 is vertical to the battery module 10 and is placed, wherein, first circuit 201 is used for transmitting voltage, second circuit 202 is used for gathering the signal, the purpose of adjusting the arrangement mode of DC-DC and battery to vertical distribution is achieved, first circuit 201 and second circuit 202 can also adopt vertical connection, thereby realizing the technical problems that the damage to the product circuit and interface in the transportation process is reduced, the stability of the product is improved, the subsequent maintenance cost is reduced, the production efficiency is improved, the connection mode of DC-DC and battery in the related art is more complicated, the wiring is more, the internal space waste of the liquid cooling system is serious, the circuit of the liquid cooling system is easy to damage in the transportation process, the use stability of the product is affected, and the subsequent maintenance cost is higher.

The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. In the foregoing embodiments of the present utility model, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In the several embodiments provided in the present utility model, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present utility model may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present utility model may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present utility model. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims (10)

1. An energy storage liquid cooling system, comprising:

the battery module comprises a plurality of batteries, and a liquid cooling pipe is arranged in the battery module and used for conveying cooling liquid conveyed by the liquid cooling unit so as to cool the battery module;

the direct current-Direct Current (DC) -DC converter is connected with the battery module through a first circuit and a second circuit respectively, and is arranged in the vertical direction with the battery module, wherein the first circuit is used for transmitting voltage, and the second circuit is used for collecting signals.

2. The energy storage and liquid cooling system of claim 1, wherein liquid cooling pipes are disposed in the horizontal direction of each battery in the battery module, and the first circuit and the second circuit are vertically arranged.

3. The energy storage and liquid cooling system of claim 1 wherein the battery module is positioned above the DC-DC converter in the vertical direction.

4. The energy storage and liquid cooling system of claim 1 wherein the battery module is positioned below the DC-DC converter in the vertical direction.

5. The energy storage and liquid cooling system of claim 1 wherein the DC-DC converter is positioned at an intermediate location of the battery module in the vertical direction.

6. The energy storage and liquid cooling system of claim 1 wherein the DC-DC converter is a plurality of converters; the DC-DC converters are spaced apart from the battery modules in the vertical direction, wherein each predetermined number of the battery modules share the same DC-DC converter.

7. The energy-storing and liquid-cooling system according to any one of claims 1 to 6, wherein the DC-DC converter is provided in a separate tank, and the tank is cooled in an air-cooling mode.

8. The energy storage and liquid cooling system of claim 7 wherein at least one face of the tank is provided with a predetermined number of vents to provide convection to the external environment.

9. The energy storage liquid cooling system of claim 1, further comprising: and a Battery Management System (BMS) connected to the battery module through a third line, wherein the BMS is used for collecting the voltage of the battery module and the temperature of the battery module through the third line.

10. The energy-storage and liquid-cooling system according to claim 9, wherein the battery module is provided with a main power switch, and the BMS issues a control command for turning off the main power switch to the battery module if it is determined that the collected voltage is greater than a first threshold or the temperature is greater than a second threshold.