阅读说明：本技术 一种储能系统用电池架、电池温控系统以及储能系统 (Battery rack for energy storage system, battery temperature control system and energy storage system ) 是由 尚德华 杨泽乾 于 2021-08-11 设计创作，主要内容包括：本发明属于新能源技术领域,尤其涉及一种储能系统用电池架、电池温控系统以及储能系统,一种储能系统用电池架,所述储能系统用电池架包括支架以及底板；所述支架与加热管路连接,所述支架形成一系列用于放置电池模组的安装格间；所述底板设置于所述支架上,位于每个所述安装格间的底面,所述底板与冷却管路连接。本发明提供的储能系统用电池架将支架与加热管路相连,将底板与冷却管路相连,利用支架以及底板分别实现加热与冷却功能,这种温控方式有利于实现电池模组的温度均衡,且能耗小,节能环保。(The invention belongs to the technical field of new energy, and particularly relates to a battery rack for an energy storage system, a battery temperature control system and the energy storage system, wherein the battery rack for the energy storage system comprises a bracket and a bottom plate; the bracket is connected with the heating pipeline and forms a series of mounting compartments for placing the battery modules; the bottom plate is arranged on the support and positioned on the bottom surface of each installation compartment, and the bottom plate is connected with the cooling pipeline. According to the energy storage system, the support is connected with the heating pipeline through the battery rack, the bottom plate is connected with the cooling pipeline, and the support and the bottom plate are used for respectively realizing heating and cooling functions.)

1. The battery rack for the energy storage system is characterized by comprising a bracket and a bottom plate;

the bracket is connected with the heating pipeline and forms a series of mounting compartments for placing the battery modules;

the bottom plate is arranged on the support and positioned on the bottom surface of each installation compartment, and the bottom plate is connected with the cooling pipeline.

2. The battery rack of claim 1, wherein the support comprises a beam and a column, the beam and the column are made of hollow pipes, and the beam and the column are communicated with a heating pipeline.

3. The battery rack of claim 2, wherein the cross-beam comprises a first cross-beam and a second cross-beam;

on the bottom surface of each installation compartment, the first cross beams and the second cross beams are positioned on the same horizontal plane, a plurality of first cross beams are transversely arranged at equal intervals, two second cross beams are longitudinally arranged and are respectively arranged at two ends of the first cross beams, and each first cross beam is communicated with the two second cross beams;

the two ends of the second cross beam are connected with the upright post, and the second cross beam is communicated with the upright post.

4. The battery rack of claim 1, wherein the support comprises a cross beam and a column;

two ends of the cross beam extend out of two sides of the mounting compartment and penetrate into the heating pipeline;

the upper end and the lower end of the upright post penetrate into the heating pipeline.

5. The battery rack according to claim 1, wherein a cooling circuit is formed in the bottom plate, and the cooling circuit is communicated with the cooling pipeline;

the cooling circuit is arranged in a serpentine shape.

6. The battery rack of claim 5, wherein the bottom plate has grooves matching with the protrusions on the bottom of the battery module, and the grooves are located between the spaces of the serpentine cooling circuit.

7. The battery rack according to claim 1, wherein at least one side of the base plate extends out of the mounting compartment, and the extended portion penetrates into the cooling duct.

8. A battery temperature control system, comprising:

the battery holder for energy storage system according to any one of claims 1 to 7; and

a heating system and a refrigeration system; the heating system is connected with the support of the battery rack through a heating pipeline, and the refrigerating system is connected with the bottom plate of the battery rack through a cooling pipeline.

9. An energy storage system, comprising:

a container-type housing; and

the battery temperature control system of claim 8, wherein a battery module is mounted on a battery rack of the battery temperature control system.

10. The energy storage system of claim 9, wherein the top of the battery modules is provided with an elastic plastic cover plate for insulation, reduction of heat transfer and reinforcement of the installation of the upper and lower battery modules.

Technical Field

The invention belongs to the technical field of new energy, and particularly relates to a battery rack for an energy storage system, a battery temperature control system and the energy storage system.

Background

At present, in the field of large energy storage of lithium ion batteries, lithium battery monomers are firstly combined into a module in a series-parallel connection mode, then the module is assembled into a battery pack in a series or parallel connection mode, the battery pack is arranged on a battery rack in a series-parallel connection mode to form a battery cluster, and then a plurality of battery clusters are fixed in a container or a room to form a large energy storage system.

Along with the development of the energy storage market, users require that the energy storage system can have higher concentration degree, increase the stored energy of unit volume, consequently use large-scale battery and battery module and the battery package that assembles into thereof, and the energy storage system that numerous lithium ion batteries constitute can produce a large amount of heats when charging and discharging, need cool down through powerful air conditioner forced cooling or use the liquid cooling mode, and need heat again when low temperature and make the battery temperature rise.

The existing technical scheme needs to consume a large amount of electric power no matter using air-conditioning air cooling or liquid cooling, which is contrary to the purposes of energy storage, energy saving and consumption reduction, especially in areas with large temperature difference or low temperature duration or high temperature duration. Even so, it is difficult to keep the battery temperature uniform, so that the uniformity of the battery is poor, affecting the service life of the system.

Disclosure of Invention

The embodiment of the invention aims to provide a battery rack for an energy storage system, and aims to solve the problem of poor temperature uniformity of a battery module in the prior art.

The embodiment of the invention is realized in such a way that the battery rack for the energy storage system comprises a bracket and a bottom plate;

the bracket is connected with the heating pipeline and forms a series of mounting compartments for placing the battery modules;

the bottom plate is arranged on the support and positioned on the bottom surface of each installation compartment, and the bottom plate is connected with the cooling pipeline.

Another object of an embodiment of the present invention is to provide a battery temperature control system, including:

the battery rack for the energy storage system according to the embodiment of the invention; and

a heating system and a refrigeration system; the heating system is connected with the support of the battery rack through a heating pipeline, and the refrigerating system is connected with the bottom plate of the battery rack through a cooling pipeline.

It is another object of an embodiment of the present invention to provide an energy storage system, including:

a container-type housing; and

according to the battery temperature control system provided by the embodiment of the invention, the battery module is arranged on the battery frame of the battery temperature control system.

The energy storage system provided by the invention has the advantages that the support is connected with the heating pipeline by the battery frame, the bottom plate is connected with the cooling pipeline, and the support and the bottom plate are used for respectively realizing heating and cooling functions, the temperature control mode mainly realizes temperature control by utilizing the heat transfer effect of a good heat conductor, and is favorable for realizing temperature balance of the battery module; and the mode completely utilizes the frame structure of the battery, occupies little extra space and improves the utilization rate of the internal space of the energy storage system.

Drawings

Fig. 1 is a three-dimensional structural view of a support of a battery rack for an energy storage system according to an embodiment of the present invention;

fig. 2 is a perspective view of a bottom plate of a battery rack for an energy storage system according to an embodiment of the present invention;

fig. 3 is a structural diagram of an energy storage system according to an embodiment of the present invention;

FIG. 4 is a partial view of FIG. 3

In the drawings: 1. a support; 11. a column; 12. a second cross member; 13. a first cross member; 2. a base plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 to 4, a structure diagram of a battery rack for an energy storage system according to an embodiment of the present invention is provided, where the battery rack for an energy storage system includes a support 1 and a bottom plate 2;

the support 1 is connected with a heating pipeline, and the support 1 forms a series of mounting compartments for placing the battery modules;

the bottom plate 2 is arranged on the support 1 and positioned on the bottom surface of each installation compartment, and the bottom plate 2 is connected with a cooling pipeline.

In the embodiment of the invention, the connection comprises two modes, one mode is that the two modes are mutually connected and fixed, and the other mode is that the internal water paths or the air paths are communicated. Form a system on support 1 and be used for placing the installation compartment of battery module, place a battery module in every installation compartment, then support 1 both is the support 1 structure of battery module, also is the control by temperature change structure of battery module simultaneously, can make the interval of battery module reduce greatly, need not reserve the space of holding circulation of air between the battery module, has improved the utilization ratio in space.

In the embodiment of the present invention, the bottom plate 2 is disposed on the bracket 1, and the disposition may be a placement or a fixation. The bottom surface of every installation compartment all is provided with bottom plate 2, utilizes bottom plate 2 to dispel the heat, can take away the heat that battery module work produced more effectively.

In addition, in the embodiment of the invention, the bracket 1 is of a heating structure, the bottom plate 2 is of a cold structure, and the characteristic that the battery module can generate heat when working is utilized, at the moment, when the battery module is required to be heated, the battery module is not directly heated, heat is transferred through the bracket 1, the temperature of the battery module is increased in a mode of raising the temperature of the surrounding local environment, and the safety of the heating process is ensured.

The energy storage system provided by the invention has the advantages that the support 1 is connected with the heating pipeline by the battery rack, the bottom plate 2 is connected with the cooling pipeline, and the support 1 and the bottom plate 2 are used for respectively realizing heating and cooling functions, the temperature control mode mainly realizes temperature control by utilizing the heat transfer effect of a good heat conductor, the temperature balance of a battery module is favorably realized, and the temperature difference between the heat transfer conductor and the environment is small, so that the heat exchanged with the environment is less, and compared with the temperature control of the traditional air conditioner and other modes, the energy storage system has the advantages of small fluctuation, good stability, small energy consumption, energy conservation and environmental protection; and the mode completely utilizes the frame structure of the battery, occupies little extra space and improves the utilization rate of the internal space of the energy storage system.

In an embodiment of the present invention, the support 1 includes a cross beam and a vertical column 11, the cross beam and the vertical column 11 are both made of hollow pipes, and both the cross beam and the vertical column 11 are communicated with a heating pipeline.

In the embodiment of the invention, the hollow pipe can be a round pipe or a square pipe; the connection between the pipes can adopt welding or pipeline connecting pieces, and the pipeline connecting pieces comprise elbows, two-way joints, three-way joints and the like. The cross beam and the upright post 11 are communicated with the heating pipeline, so that a medium in the heating pipeline can flow into the upright post 11 or the cross beam, and the battery module is heated. The medium may specifically be water or the like.

In one embodiment of the invention, the cross-beams comprise a first cross-beam 13 and a second cross-beam 12;

on the bottom surface of each installation compartment, the first cross beams 13 and the second cross beams 12 are located on the same horizontal plane, a plurality of first cross beams 13 are transversely arranged at equal intervals, two second cross beams 12 are longitudinally arranged, the two second cross beams 12 are respectively arranged at two ends of the first cross beams 13, and each first cross beam 13 is communicated with the two second cross beams 12;

two ends of the second beam 12 are connected with the upright post 11, and the second beam 12 is communicated with the upright post 11.

In the embodiment of the present invention, the first beam 13 and the second beam 12 are perpendicular to each other, the first beam 13 is provided with a plurality of beams and arranged at equal intervals, the second beam 12 is provided with two beams and located at two ends of the first beam 13, two ends of each first beam 13 are communicated with the second beam 12, and the heat conducting medium flows into the first beam 13 through the second beam 12 at one side and then enters the second beam 12 at the other side.

In the embodiment of the present invention, further, the second beam 12 is connected to the column 11, and the basic flow process of the heat transfer medium is as follows: upright 11-second crossbeam 12-first crossbeam 13-upright 11, upright 11 has played the effect of main pipeline.

In one embodiment of the present invention, the support 1 comprises a beam and a column 11;

two ends of the cross beam extend out of two sides of the mounting compartment and penetrate into the heating pipeline;

the upper end and the lower end of the upright post 11 penetrate into the heating pipeline.

In the embodiment of the invention, the upright post 11 and the cross beam can be made of metal solid rods, and the excellent heat-conducting property of metal is mainly utilized, so that the structure is simpler than a tubular structure, the heat-conducting efficiency is slightly lower, and the heat-conducting heat-. It will be appreciated that metallic materials having a relatively good thermal conductivity may be selected for use in this case.

In one embodiment of the present invention, a cooling circuit is disposed in the bottom plate 2, and the cooling circuit is communicated with the cooling pipeline;

the cooling circuit is arranged in a serpentine shape.

In the embodiment of the present invention, the cooling circuit may be provided in an S-shape or a zigzag shape and disposed to reciprocate. Preferably, the inlet and outlet of the cooling circuit are located on the same side of the bottom plate 2, that is, in the installed state, the battery rack is close to the box body or one side of the inner wall surface of the box body, so that the space of an indoor passageway or a central passageway of the box body is prevented from being occupied. Preferably, an inlet and an outlet of each cooling circuit of the base plate 2 are provided with electromagnetic valves, and the on-off of the electromagnetic valves is determined by the system according to temperature information collected by the temperature sensors.

In one embodiment of the present invention, the bottom plate 2 is provided with grooves matching with the protrusions at the bottom of the battery module, and the grooves are located between the intervals of the serpentine cooling circuit.

In the embodiment of the invention, the bottom of the battery module is provided with the bulge matched with the groove, the battery module is arranged on the bottom plate 2, and the bulge is matched with the groove, so that the battery module and the bottom plate are more reliably arranged and fixed, and the contact area of the battery module and the bottom plate is increased, thereby being beneficial to cooling and heat dissipation. The grooves are formed in the bottom plate 2, partial materials on the bottom plate 2 are removed, heat exchange between the battery module and media in the cooling circuit can be accelerated, and the distance between the cooling circuit and the battery module is closer.

In one embodiment of the invention, at least one side of the base plate 2 extends outside the installation compartment, the extended part penetrating into the cooling pipe.

In the embodiment of the present invention, at least one side of the bottom plate 2 extends out of the installation compartment, preferably the left and right sides, and the extended portion penetrates into the cooling pipeline, so that the medium flowing in the cooling pipeline directly contacts with the bottom plate 2, thereby accelerating heat exchange.

An embodiment of the present invention further provides a battery temperature control system, where the battery temperature control system includes:

the battery rack for the energy storage system according to the embodiment of the invention; and

a heating system and a refrigeration system; the heating system is connected with the support 1 of the battery rack through a heating pipeline, and the refrigerating system is connected with the bottom plate 2 of the battery rack through a cooling pipeline.

In the embodiment of the present invention, the heat supply system may adopt a medium-small electric furnace, and the like, and the refrigeration system may be a cooling loop formed by an air conditioner, a cooling tower, and a refrigerator, and the embodiment of the present invention is not particularly limited with respect to a specific implementation manner.

An embodiment of the present invention further provides an energy storage system, where the energy storage system includes:

a container-type housing; and

according to the battery temperature control system provided by the embodiment of the invention, the battery module is arranged on the battery frame of the battery temperature control system.

In the embodiment of the invention, the shell adopts the container type shell, and the shell with the structure is common in the prior art and is simple to realize; the invention can more fully utilize the space in the container, greatly reduce the gap between the adjacent battery modules and even lead the adjacent battery modules to be abutted together.

In one embodiment of the present invention, an elastic plastic cap plate is provided on the top of the battery module, and the elastic plastic cap plate serves to insulate the upper and lower battery modules, reduce heat transfer, and reinforce the installation.

In the embodiment of the invention, the battery modules are all abutted against the elastic plastic plate, the battery modules can be more reliably mounted by utilizing the elasticity of the elastic plastic plate, and meanwhile, the plastic material can play an insulating role and reduce the heat transfer among different battery modules.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.