阅读说明：本技术 一种液冷ctr储能电池系统 (Liquid cooling CTR energy storage battery system ) 是由 李俊飞 于 2021-08-13 设计创作，主要内容包括：本发明公开一种液冷CTR储能电池系统,包括电池支架,所述电池支架中装配有若干列规则排布的CTR液冷电池模块,所述所述CTR液冷电池模块底部设置有液冷板,电池支架底部设有高压控制盒；还包括液冷循环系统,其中该液冷循环系统包括液冷机组、膨胀水箱、进水管和出水管；相邻的所述液冷板通过管路实现整体串联,串联后的液冷板作为整体形成循环水管路,液冷机组通过进水管与循环水管路的出水端连接；所述出水管端部设有三通接头,所述三通接头分别连接膨胀水箱和循环水管路的进水端。该液冷CTR储能电池系统,通过水管管路的设置,能够保证每个CTR液冷电池模块的降温效果,增加其换热效率与均温性能。(The invention discloses a liquid-cooled CTR energy storage battery system, which comprises a battery bracket, wherein a plurality of rows of CTR liquid-cooled battery modules which are regularly arranged are assembled in the battery bracket, a liquid-cooled plate is arranged at the bottom of each CTR liquid-cooled battery module, and a high-voltage control box is arranged at the bottom of the battery bracket; the system also comprises a liquid cooling circulating system, wherein the liquid cooling circulating system comprises a liquid cooling unit, an expansion water tank, a water inlet pipe and a water outlet pipe; the adjacent liquid cooling plates are integrally connected in series through a pipeline, the liquid cooling plates after being connected in series are integrally formed into a circulating water pipeline, and the liquid cooling unit is connected with the water outlet end of the circulating water pipeline through a water inlet pipe; and the end part of the water outlet pipe is provided with a three-way joint which is respectively connected with the water inlet ends of the expansion water tank and the circulating water pipeline. This liquid cooling CTR energy storage battery system, through the setting of water pipe line, can guarantee the cooling effect of every CTR liquid cooling battery module, increase its heat exchange efficiency and samming performance.)

1. The utility model provides a liquid cooling CTR energy storage battery system which characterized in that: the battery support comprises a battery support (1), wherein a plurality of rows of regularly arranged CTR liquid cooling battery modules (2) are assembled in the battery support (1), a liquid cooling plate (201) is arranged at the bottom of each CTR liquid cooling battery module (2), and a high-voltage control box (3) is arranged at the bottom of the battery support (1);

also includes a liquid cooling circulation system, wherein

The liquid cooling circulation system comprises a liquid cooling unit (4), an expansion water tank (5), a water inlet pipe (11) and a water outlet pipe (10); the adjacent liquid cooling plates (201) are integrally connected in series through pipelines, the liquid cooling plates (201) after being connected in series form a circulating water pipeline (7) as a whole, and the liquid cooling unit (4) is connected with the water outlet end of the circulating water pipeline (7) through a water inlet pipe (11); the water outlet pipe (10) is provided with a three-way joint (9), and the three-way joint (9) is respectively connected with the water inlet ends of the expansion water tank (5) and the circulating water pipeline (7).

2. The liquid-cooled CTR energy storage battery system of claim 1, wherein: the liquid cooling unit (4) has a water temperature acquisition function, acquires the temperature of the CTR liquid cooling battery module (2) in real time, communicates with the battery system BMS through the liquid cooling unit (4), and requests the corresponding refrigerating power to the liquid cooling unit (4) according to the acquired temperature change of the CTR liquid cooling battery module (2).

3. The liquid-cooled CTR energy storage battery system of claim 1, wherein: a heat-conducting silica gel pad is arranged between the CTR liquid-cooled battery module (2) and the liquid-cooled plate (201) at the bottom of the CTR liquid-cooled battery module, and the heat-conducting silica gel pad is tightly attached between the CTR liquid-cooled battery module (2) and the liquid-cooled plate (201); the end part of the liquid cooling plate (201) is provided with a pipeline joint (204) which is used for connecting the water inlet pipe (11) and the water outlet pipe (10) or is connected with the adjacent liquid cooling plate (201) in series, thereby forming a circulating pipeline.

4. The liquid-cooled CTR energy storage battery system of claim 1, wherein: the battery support (1) comprises a bottom cross beam (101), a top plate (102) and vertical supporting columns (103), wherein the vertical supporting columns (103) are combined in pairs into three rows, each row of the vertical supporting columns (103) are formed by a plurality of battery module supporting structures (1011), a plurality of main air ducts (107) located on the rear side of the vertical supporting columns (103) are arranged between the bottom cross beam (101) and the top plate (102), a plurality of fan sets (108) are assembled at the top of the top plate (102), and air inlets of the main air ducts (107) are arranged and communicated with the fan sets (108) in a one-to-one correspondence manner.

5. The liquid-cooled CTR energy storage battery system of claim 4, wherein: the fan set (108) and the top cross beam plate are detachably assembled, and the main air duct (107) and the bottom cross beam (101) plate and the top cross beam plate are also detachably assembled; the battery module support structure (1011) is composed of a left support beam (105) and a right support beam (106), and the left support beam (105) and the right support beam (106) are both L-shaped beams.

6. The liquid-cooled CTR energy storage battery system of claim 4, wherein: the outer wall of main wind channel (107) is seted up with every layer of battery module bearing structure (1011) relative air exit (109) in position, and air exit (109) are equipped with detachable filter screen layer.

7. The liquid-cooled CTR energy storage battery system of claim 4, wherein: the top in main wind channel (107) is provided with accepts wind channel (1010), the top fixed mounting who accepts wind channel (1010) has installation sheet frame (1013), equal fixed mounting has equipment board (1012) on the lateral wall about main wind channel (107), be equipped with rivet hole and rivet on equipment board (1012), main wind channel (107) carry out corresponding dismouting through between equipment board (1012) and vertical support post (103), and set up air exit (109) to its output on main wind channel (107).

8. A liquid-cooled CTR energy storage battery system according to claim 3, wherein: high-voltage control box (3) carry out corresponding connection through high-pressure connection pencil (6) and low pressure series connection communication pencil (8) and CTR liquid cooling battery module (2) between, and high-voltage control box (3) still are connected with liquid cooling unit (4) through liquid cooling unit (4) power supply line and liquid cooling unit (4) communication line.

9. A liquid-cooled CTR energy storage battery system according to claim 3, wherein: a front panel (202) is arranged on the outer side of the CTR liquid cooling battery module (2); and a BMS battery management system (203) is fixedly installed on the front panel (202) and used for monitoring the temperature of the CTR liquid cooling battery module (2) in real time and establishing communication with the liquid cooling unit (4).

Technical Field

The invention relates to the technical field of battery energy storage systems, in particular to a liquid-cooling CTR energy storage battery system.

Background

The current development direction of energy storage lithium ion batteries is to move to the fields of higher energy density, longer cycle life, lighter, thinner, safer and the like, namely, the combination of the energy storage lithium ion batteries is required to have larger capacity to support the product to run for a longer time, and meanwhile, the battery charging time is required to be shorter, so that the charging current with larger multiplying power is required to be satisfied. The satisfaction of these conditions requires that the battery satisfy a high-rate charge and discharge performance in addition to the use of a multi-string and multi-parallel battery module. Regardless of the serial-parallel mode of parallel combination of the battery units or the high-rate charge and discharge of the battery, the heat dissipation problem of the battery is aggravated, so that the central temperature of the battery is abnormal. And too high battery temperature often leads to the battery electrochemistry system unstability in turn, appears the battery short circuit or fires burning, causes the safety problem.

At present, the rapid development of electric power energy storage, especially for a peak-shaving frequency-modulation energy storage battery system, requires not only the charge and discharge with the change of multiplying power, but also the greatly increased charge and discharge frequency, and provides higher requirements for the cycle life and the thermal management of a lithium battery.

At present, the battery pack is cooled mainly by air cooling, liquid cooling and phase change. Air cooling is the most common heat dissipation method, and generally, a cooling fan is installed to force air to carry out convection cooling, but the battery avoids low heat exchange coefficient with air, so the cooling and heat dissipation effect is poor, and meanwhile, an air cooling system adopting an air conditioning system component is easy to cause dew accumulation, and the use safety of the battery system is reduced. The phase-change material cooling is to cool or heat the battery by utilizing the stored or released heat when the material is subjected to phase change, although the method has a good heat dissipation effect, the phase-change material heat dissipation technology is not mature, the structure is complex, the cost is high, and the maintenance is inconvenient. The liquid cooling utilizes liquid with relatively high heat conductivity to directly or indirectly contact the battery for heat dissipation, the main method is to arrange a jacket around the module or arrange a heat transfer pipe between the modules, the liquid cooling system in the field of energy storage at present only needs to adopt a standard liquid cooling plug box similar to a passenger car with large electric quantity, the process is complex, most structural parts are grinding tool machined parts, the cost is high, and secondly, the box body is large in size and convenient to install and maintain in a narrow space of a container.

Therefore, we propose a liquid-cooled CTR energy storage battery system.

Disclosure of Invention

Technical problem to be solved

The invention aims to overcome the defects and provide a liquid-cooled CTR energy storage battery system, which solves the problem that the existing device is relatively fixed in structure and is inconvenient to switch a heat dissipation mode according to requirements.

(II) technical scheme

In order to achieve the purpose, the liquid-cooled CTR energy storage battery system comprises a battery support, wherein a plurality of rows of CTR liquid-cooled battery modules which are regularly arranged are assembled in the battery support, a liquid-cooled plate is arranged at the bottom of each CTR liquid-cooled battery module, and a high-voltage control box is arranged at the bottom of the battery support;

also includes a liquid cooling circulation system, wherein

The liquid cooling circulation system comprises a liquid cooling unit, an expansion water tank, a water inlet pipe and a water outlet pipe; the adjacent liquid cooling plates are integrally connected in series through a pipeline, the liquid cooling plates after being connected in series are integrally formed into a circulating water pipeline, and the liquid cooling unit is connected with the water outlet end of the circulating water pipeline through a water inlet pipe; and the end part of the water outlet pipe is provided with a three-way joint which is respectively connected with the water inlet ends of the expansion water tank and the circulating water pipeline.

Preferably, the liquid cooling unit has a water temperature acquisition function, acquires the temperature of the CTR liquid cooling battery module in real time, communicates with the battery system BMS, and requests the corresponding refrigeration power to the liquid cooling unit according to the acquired temperature change of the CTR liquid cooling battery module.

Preferably, a heat-conducting silica gel pad is arranged between the CTR liquid-cooled battery module and the liquid-cooled plate at the bottom of the CTR liquid-cooled battery module, and the heat-conducting silica gel pad is tightly attached between the CTR liquid-cooled battery module and the liquid-cooled plate; the end part of the liquid cooling plate is provided with a pipeline joint for connecting a water inlet pipe and a water outlet pipe or connecting the liquid cooling plate with the adjacent liquid cooling plate in series, thereby forming a circulating pipeline.

Preferably, the battery support comprises a bottom cross beam, a top plate and vertical support columns, wherein two vertical support columns are combined into three rows, each row of vertical support columns is composed of a plurality of battery module support structures, a plurality of main air ducts located on the rear sides of the vertical support columns are arranged between the bottom cross beam and the top plate, a plurality of fan sets are assembled at the top of the top plate, and air inlets of the main air ducts and the fan sets are arranged in a one-to-one correspondence manner and communicated.

Preferably, the fan set and the top cross beam plate are detachably assembled, and the main air duct and the bottom cross beam plate and the top cross beam plate are also detachably assembled; the battery module supporting structure is composed of a left supporting beam and a right supporting beam, and the left supporting beam and the right supporting beam are both L-shaped beams.

Preferably, the outer wall of the main air duct is provided with an air outlet opposite to the position of each layer of battery module supporting structure, and the air outlet is provided with a detachable filter screen layer.

Preferably, the top in main wind channel is provided with accepts the wind channel, the top fixed mounting who accepts the wind channel has the installation sheet frame, all fixed mounting has the equipment board on the lateral wall about the main wind channel, be equipped with rivet hole and rivet on the equipment board, the main wind channel is through carrying out corresponding dismouting between equipment board and the vertical support post, and sets up the air exit for its output on the main wind channel.

Preferably, the high-voltage control box is correspondingly connected with the CTR liquid cooling battery module through a high-voltage connecting wire harness and a low-voltage serial communication wire harness, and the high-voltage control box is further connected with the liquid cooling unit through a liquid cooling unit power supply wire and a liquid cooling unit communication wire.

Preferably, a front panel is arranged on the outer side of the CTR liquid cooling battery module; and a BMS battery management system is fixedly arranged on the front panel and used for monitoring the temperature of the CTR liquid cooling battery module in real time and establishing communication with the liquid cooling unit.

Preferably, the outside of CTR liquid cooling battery module is provided with battery frame, battery frame's bottom sets up to no end frame, and does not have end frame bottom all around to extend 15mm to the inboard.

(III) advantageous effects

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. this liquid cooling CTR energy storage battery system, the setting of water pipe line, can carry the cooling water in the expansion tank to the liquid cooling board of every CTR liquid cooling battery module bottom, and then can guarantee the cooling effect of every CTR liquid cooling battery module, increase its heat exchange efficiency and samming performance, the setting of leading panel in wind channel and the CTR liquid cooling battery module on the cooperation battery support simultaneously, can select corresponding water-cooling and air-cooled heat dissipation mode according to this system operational environment demand, the suitability is higher, the problem that current device is not good to multiunit battery module radiating efficiency and can not switch the heat dissipation mode according to the demand has been solved.

2. This liquid cooling CTR energy storage battery system through battery modular's setting, can be according to the nimble assembly quantity that disposes CTR liquid cooling battery module of specific demand, and then be convenient for assemble the different positions of CTR liquid cooling battery module of different quantity on battery holder, not only the practicality is strong, has also increased the specific result of use of the device simultaneously.

3. This liquid cooling CTR energy storage battery system through its setting that need not the die sinking, is convenient for assemble in a flexible way between battery holder and the CTR liquid cooling battery module, and its cost of manufacture is not only reduced in the lightweight setting of battery holder simultaneously, has also simplified the assembly operation simultaneously, possesses higher cost advantage, and in addition, CTR liquid cooling battery module in the device is small and exquisite relatively, in narrow and small space ranges such as container, installation, dismantlement and maintainability are better.

4. Intelligent dynamic heat management, the BMS can be according to battery temperature and temperature, and dynamic adjustment refrigeration power guarantees that the battery work is when safe temperature, and furthest reduces the energy consumption.

5. In the container energy storage application system, the system can be connected in parallel in multiple groups, and is used in a networking mode, so that the flexibility is high, and the applicability is wide.

Drawings

FIG. 1 is a block diagram schematically illustrating the structure of the present invention;

FIG. 2 is a schematic structural view of a battery holder according to the present invention;

FIG. 3 is a schematic structural view of the main duct of the present invention;

FIG. 4 is a schematic structural view of a CTR liquid-cooled battery module in accordance with the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1 at A.

In the figure:

1. a battery holder;

2. the CTR liquid cooling battery module;

3. a high voltage control box;

4. a liquid cooling unit;

5. an expansion tank;

6. a high voltage connection harness;

7. a circulating water line;

8. a low voltage series communication harness;

9. a three-way joint;

10. a water outlet pipe;

11. a water inlet pipe;

101. a bottom cross member;

102. a top plate;

103. a vertical support column;

104. a support leg;

105. a left support beam;

106. a right support beam;

107. a main air duct;

108. a fan set;

109. an air outlet;

1010. a receiving air duct;

1011. a battery module support structure;

1012. assembling a plate;

1013. installing a plate frame;

201. a liquid-cooled plate;

202. a front panel;

203. a BMS battery management system;

204. a pipe joint;

205. a battery frame.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Referring to fig. 1-5, an embodiment of the invention provides a liquid-cooled CTR energy storage battery system, which includes a battery support 1, wherein a plurality of rows of regularly arranged CTR liquid-cooled battery modules 2 are assembled in the battery support 1, a liquid-cooled plate 201 is arranged at the bottom of each CTR liquid-cooled battery module 2, and a high-voltage control box 3 is arranged at the bottom of the battery support 1;

the system also comprises a liquid cooling circulating system, wherein the liquid cooling circulating system comprises a liquid cooling unit 4, an expansion water tank 5, a water inlet pipe 11 and a water outlet pipe 10; the adjacent liquid cooling plates 201 are integrally connected in series through pipelines, the liquid cooling plates 201 connected in series form a circulating water pipeline 7 as a whole, and the liquid cooling unit 4 is connected with the water outlet end of the circulating water pipeline 7 through a water inlet pipe 11; the end part of the water outlet pipe 10 is provided with a three-way joint 9, and the three-way joint 9 is respectively connected with the water inlet ends of the expansion water tank 5 and the circulating water pipeline 7.

The liquid cooling unit 4 has a water temperature acquisition function, acquires the temperature of the CTR liquid cooling battery module 2 in real time, communicates with the battery system BMS through the liquid cooling unit 4, and requests the corresponding refrigeration power to the liquid cooling unit 4 according to the acquired temperature change of the CTR liquid cooling battery module 2. The BMS system can request corresponding suitable refrigeration power to the data of temperature according to liquid cooling unit 4 collection, and then can specifically adjust the device to its cooling effect according to the temperature of battery surrounding environment, guarantees that the battery is in the best operational environment all the time to increase its work efficiency.

A heat-conducting silica gel pad is arranged between the CTR liquid-cooled battery module 2 and the liquid-cooled plate 201 at the bottom of the CTR liquid-cooled battery module, is tightly attached between the CTR liquid-cooled battery module 2 and the liquid-cooled plate 201, and is not shown in the figure because the heat-conducting silica gel pad is in a hidden position; the end of the liquid cooling plate 201 is provided with a pipeline joint 204 for connecting the water inlet pipe 11 and the water outlet pipe 10, or connecting with the adjacent liquid cooling plate 201 in series, thereby forming a circulating pipeline.

The battery support 1 comprises a bottom cross beam 101, a top plate 102 and vertical support columns 103, wherein the vertical support columns 103 are combined in pairs into three rows, each row of the vertical support columns 103 is composed of a plurality of battery module support structures 1011, a plurality of main air ducts 107 located at the rear sides of the vertical support columns 103 are arranged between the bottom cross beam 101 and the top plate 102, a plurality of fan sets 108 are assembled at the top of the top plate 102, and air inlets of the main air ducts 107 are arranged in one-to-one correspondence with the fan sets 108 and communicated with the fan sets 108.

The fan set 108 and the top cross beam plate are detachably assembled, and the main air duct 107 and the bottom cross beam 101 plate and the top cross beam plate are also detachably assembled; the battery module support structure 1011 is composed of a left support beam 105 and a right support beam 106, and both the left support beam 105 and the right support beam 106 are L-shaped beams.

The outer wall of the main air duct 107 is provided with an air outlet 109 opposite to the position of each layer of battery module support structure 1011, and the air outlet 109 is provided with a detachable filter screen layer.

The top in main wind channel 107 is provided with accepts wind channel 1010, the top fixed mounting who accepts wind channel 1010 has installation plate frame 1013, all fixed mounting has assembly plate 1012 on the lateral wall about main wind channel 107, be equipped with rivet hole and rivet on the assembly plate 1012, main wind channel 107 carries out corresponding dismouting through between assembly plate 1012 and the vertical support post 103, and sets up the air exit 109 who is its output on the main wind channel 107.

Wherein, the change of leading panel 202 kind in the CTR liquid cooling battery module 2 is convenient for cooperate wind channel and the fan group 108 on the battery support 1 to carry out corresponding forced air cooling and natural heat dissipation, and then can select corresponding water-cooling and forced air cooling heat dissipation mode according to this system operational environment demand, and the suitability is higher, has solved current device not good and can not switch the problem of heat dissipation mode according to the demand to multiunit battery module radiating efficiency.

Wherein, in this embodiment, it explains to need to supplement, through the setting of water pipe line, can carry the cooling water in expansion tank 5 to the liquid cooling board 201 of 2 bottoms of every CTR liquid cooling battery module, and then can guarantee the cooling effect of every CTR liquid cooling battery module 2, increase its heat exchange efficiency and samming performance, cooperate the setting of wind channel and leading panel 202 in the CTR liquid cooling battery module 2 on battery support 1 simultaneously, can select corresponding water-cooling and air-cooled radiating mode according to this system operational environment demand, the suitability is higher, the problem that current device is not good to multiunit battery module radiating efficiency and can not switch radiating mode according to the demand has been solved.

High-voltage control box 3 carries out corresponding connection through high-pressure connecting wire 6 and low pressure series connection communication pencil 8 and CTR liquid cooling battery module 2 between, and high-voltage control box 3 still is connected with liquid cooling unit 4 through 4 communication lines of liquid cooling unit 4 power supply lines and liquid cooling unit 4.

A front panel 202 is arranged on the outer side of the CTR liquid cooling battery module 2; the BMS battery management system 203 is fixedly arranged on the front panel 202 and used for monitoring the temperature of the CTR liquid cooling battery module 2 in real time and establishing communication with the liquid cooling unit 4.

It should be added that, the outer side of the CTR liquid-cooled battery module 2 is provided with a battery frame 205, the bottom of the battery frame 205 is provided with a bottomless frame, and the periphery of the bottomless frame bottom extends inwards by 15mm to support the battery.

The working principle and the using process of the invention are as follows: when the device needs to be installed, the accessories of the battery bracket 1 are mutually assembled, the CTR liquid-cooled battery modules 2 and the high-voltage control box 3 with corresponding quantity are assembled at corresponding positions in the battery bracket 1, then the CTR liquid-cooled battery modules 2, the liquid cooling unit 4 and the expansion water tank 5 are correspondingly connected in series through the circulating water pipeline 7, the high-voltage control box 3, the CTR liquid-cooled battery modules 2 and the liquid cooling unit 4 are correspondingly connected through the high-voltage connecting wiring harness 6 and the low-voltage series-connection communication wiring harness 8, when water cooling is needed, water in the liquid cooling plate 201 at the bottom of the CTR liquid-cooled battery module 2 is conveyed to the liquid cooling unit 4, the liquid cooling unit 4 acquires the temperature and regulates and controls the corresponding refrigeration efficiency, the cooled water is conveyed to the expansion water tank 5, and then the expansion water tank 5 is conveyed to the liquid cooling plate 201 at the bottom of the CTR liquid-cooled battery module 2 through the circulating water pipeline 7 again, the effect of the circulating water cooling heat dissipation is completed, when air cooling is needed, only the front panel 202 on the CTR liquid cooling battery module 2 and the air duct and the fan set 108 on the battery support 1 need to be correspondingly disassembled and replaced, and corresponding air cooling heat dissipation is carried out on the front panel and the fan set, so that the air cooling heat dissipation device can be used.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In summary, the above embodiments are not intended to be limiting embodiments of the present invention, and modifications and equivalent variations made by those skilled in the art based on the spirit of the present invention are within the technical scope of the present invention.