Lithium iron phosphate storage battery pack temperature control device for energy storage system

Abstract

The utility model discloses a lithium iron phosphate storage battery pack temperature control device for an energy storage system, and relates to the technical field of energy storage systems, the lithium iron phosphate storage battery pack temperature control device comprises a heat dissipation mechanism, a connecting mechanism, a storage battery and a temperature sensor, a heat dissipation assembly comprises symmetrically arranged assembly connecting pipes and a coiled heat dissipation pipe, the heat dissipation pipe is communicated with the assembly connecting pipes, and the heat dissipation pipe is connected with the connecting mechanism. On-off valves are arranged at the connecting positions of the two ends of each heat dissipation pipe and the corresponding assembly connecting pipe, in the using process, the two ends of each assembly connecting pipe communicate with a circulating refrigerating fluid box, due to the arrangement of the on-off valves, on-off of the single heat dissipation pipe can be adjusted, meanwhile, the temperatures of a plurality of storage batteries are monitored through a temperature sensor on a second lateral limiting rod, and therefore the storage batteries can be conveniently stored. Therefore, the storage battery working at high temperature can be emphatically cooled, the overall heat dissipation efficiency of the device is improved, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage system technical field, concretely relates to a lithium iron phosphate battery group temperature control device for energy storage system. BACKGROUND

[0002] Domestic energy storage system widely uses lithium iron phosphate battery as energy storage source due to safety consideration. But the performance of lithium iron phosphate battery is poor under high and low temperature environment, and the lithium iron phosphate battery under such environment for a long time will greatly reduce the service life.

[0003] The existing patent with the authorization announcement number CN204271215U discloses a battery pack cooling device, which comprises a shell body, a main pipeline, a flat pipeline and a battery pack composed of multiple single batteries arranged in a row, the inside of the shell body is provided with a containing cavity, the battery pack is placed in the containing cavity, the upper end surface of the shell body is provided with two electrodes electrically connected with the battery pack, two parallel main pipeline openings are opened on the upper part of the left end surface of the shell body, the sealed end of the main pipeline penetrates through the main pipeline opening and is abutted on the inside of the right end surface of the shell body, the other end of the main pipeline is provided with a pipe joint in communication with the pipeline outside, the outer surface of the main pipeline is provided with axially equidistant connection opening holes, the flat pipeline spirally adhered between the single batteries is arranged in a row in equidistance with the connection opening holes, and the two ends of the flat pipeline are connected with the corresponding connection opening holes of the two main pipelines.

[0004] The existing technical scheme has the following disadvantages: multiple flat pipelines are directly communicated with the main pipeline, so that the use condition of the single battery cannot be specifically adjusted, the temperature adjustment effect is poor, and the heat dissipation efficiency is low. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a lithium iron phosphate battery group temperature control device for energy storage system, so as to solve the technical problem that multiple flat pipelines are directly communicated with the main pipeline in the prior art, so that the use condition of the single battery cannot be specifically adjusted.

[0006] The technical problem solved by the utility model can be realized by the following technical scheme:

[0007] A lithium iron phosphate battery group temperature control device for energy storage system, comprising:

[0008] The heat dissipation mechanism comprises a heat dissipation assembly, the heat dissipation assembly comprises symmetrically arranged assembly connecting pipes and coiled heat dissipation pipes, the two ends of the heat dissipation pipes are communicated with the assembly connecting pipes, and on-off valves are arranged at the connecting positions between the heat dissipation pipes and the assembly connecting pipes;

[0009] The connecting mechanism comprises a heat plate fixedly installed on a heat dissipation pipe, a supporting bottom plate fixedly connected to the heat plate, limiting side plates fixedly connected to both sides of the heat plate, the limiting side plates being arranged on both sides of the supporting bottom plate, an installation groove being arranged between the heat plate, the limiting side plates and the supporting bottom plate, and a storage battery being arranged in the installation groove.

[0010] As a further scheme of the utility model: the limiting side plates are uniformly distributed and fixedly connected with heat dissipation fins one, the heat dissipation fins one are arranged on the outer side end face of the limiting side plates, and the supporting bottom plate is uniformly distributed and fixedly connected with heat dissipation fins two, the heat dissipation fins two are arranged on the outer side end face of the supporting bottom plate.

[0011] As a further scheme of the utility model: the limiting side plates are uniformly distributed and fixedly connected with heat dissipation fins one, the heat dissipation fins one are arranged on the outer side end face of the limiting side plates, and the supporting bottom plate is uniformly distributed and fixedly connected with heat dissipation fins two, the heat dissipation fins two are arranged on the outer side end face of the supporting bottom plate.

[0012] As a further scheme of the utility model: the limiting side plates are uniformly distributed and fixedly connected with heat dissipation fins one, the heat dissipation fins one are arranged on the outer side end face of the limiting side plates, and the supporting bottom plate is uniformly distributed and fixedly connected with heat dissipation fins two, the heat dissipation fins two are arranged on the outer side end face of the supporting bottom plate.

[0013] As a further scheme of the utility model: the limiting side plates are uniformly distributed and fixedly connected with heat dissipation fins one, the heat dissipation fins one are arranged on the outer side end face of the limiting side plates, and the supporting bottom plate is uniformly distributed and fixedly connected with heat dissipation fins two, the heat dissipation fins two are arranged on the outer side end face of the supporting bottom plate.

[0014] As a further scheme of the utility model: the limiting side plates are uniformly distributed and fixedly connected with heat dissipation fins one, the heat dissipation fins one are arranged on the outer side end face of the limiting side plates, and the supporting bottom plate is uniformly distributed and fixedly connected with heat dissipation fins two, the heat dissipation fins two are arranged on the outer side end face of the supporting bottom plate.

[0015] As a further scheme of the utility model: the limiting side plates are uniformly distributed and fixedly connected with heat dissipation fins one, the heat dissipation fins one are arranged on the outer side end face of the limiting side plates, and the supporting bottom plate is uniformly distributed and fixedly connected with heat dissipation fins two, the heat dissipation fins two are arranged on the outer side end face of the supporting bottom plate.

[0016] As a further scheme of the utility model: the limiting side plates are uniformly distributed and fixedly connected with heat dissipation fins one, the heat dissipation fins one are arranged on the outer side end face of the limiting side plates, and the supporting bottom plate is uniformly distributed and fixedly connected with heat dissipation fins two, the heat dissipation fins two are arranged on the outer side end face of the supporting bottom plate.

[0017] As a further embodiment of this utility model: a connecting pipe is fixedly connected and communicated on the component connecting pipe, and the heat dissipation pipe is connected to the component connecting pipe through the connecting pipe.

[0018] As a further embodiment of this utility model: the on / off valve is fixedly installed on the connecting pipe.

[0019] The beneficial effects of this utility model are:

[0020] 1. The heat dissipation component of this utility model includes symmetrically arranged component connecting pipes and coiled heat dissipation pipes. The heat dissipation pipes are connected to the component connecting pipes. On-off valves are provided at the connection points between the heat dissipation pipes and the component connecting pipes at both ends. In use, the two ends of the component connecting pipes are connected to the circulating refrigerant tank. Due to the on-off valves, the on / off state of a single heat dissipation pipe is adjustable. At the same time, the temperature of multiple batteries is monitored by the temperature sensor on the lateral limit rod 2, so that the batteries working at high temperatures can be cooled in a focused manner, which is conducive to improving the overall heat dissipation efficiency of the device and improving the practicality of the device.

[0021] 2. The present invention has an installation groove between the heat dissipation plate, the limiting side plate and the supporting base plate. The battery is installed in the installation groove. Heat dissipation fins are evenly distributed and fixedly connected to the limiting side plate and heat dissipation fins are evenly distributed and fixedly connected to the supporting base plate. The connecting mechanism can serve as a fixed frame for the battery. At the same time, the connecting mechanism can provide passive heat dissipation for the battery, which is conducive to further improving the overall heat dissipation efficiency of the device and further improving the practicality of the device. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the connection relationship between multiple heat dissipation components of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the connecting mechanism of this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the heat dissipation component of this utility model.

[0028] In the diagram: 1. Heat dissipation mechanism; 100. Heat dissipation component; 11. Component connecting pipe; 12. Connecting pipe port; 13. Connecting pipe port; 14. Connecting pipe; 15. Heat dissipation pipe; 16. On / off valve; 2. Connecting mechanism; 21. Heat dissipation plate; 22. Limiting side plate; 23. Heat dissipation fin one; 24. Supporting base plate; 25. Heat dissipation fin two; 26. Fixing strip; 27. Lateral limiting rod one; 28. Fixed connecting end one; 29. ​​Lateral limiting rod two; 210. Fixed connecting end two; 211. Upper limiting rod; 3. Battery; 4. Temperature sensor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1-5 As shown, a temperature control device for a lithium iron phosphate battery pack in an energy storage system includes a heat dissipation mechanism 1 and a connection mechanism 2. The heat dissipation mechanism 1 includes a heat dissipation component 100, which includes symmetrically arranged component connecting pipes 11 and coiled heat dissipation pipes 15. Both ends of the heat dissipation pipes 15 are connected to the component connecting pipes 11. On / off valves 16 are provided at the connection points between the heat dissipation pipes 15 and the component connecting pipes 11. The connection mechanism 2 includes a heat spreader plate 21, which is fixedly installed on the heat dissipation pipes 15. A supporting base plate 24 is fixedly connected to the heat spreader plate 21. Limiting side plates 22 are fixedly connected to both sides of the heat spreader plate 21. The limiting side plates 22 are located on both sides of the supporting base plate 24. An installation groove is provided between the heat spreader plate 21, the limiting side plates 22, and the supporting base plate 24. The battery 3 is installed in the installation groove.

[0031] Heat dissipation fins 1 23 are evenly distributed and fixedly connected on the limiting side plate 22. Heat dissipation fins 1 23 are disposed on the outer end face of the limiting side plate 22. Heat dissipation fins 25 are evenly distributed and fixedly connected on the supporting base plate 24. Heat dissipation fins 25 are disposed on the outer end face of the supporting base plate 24.

[0032] Both sides of the limiting side plate 22 are fixedly connected to the fixing strip plate 26. The fixing strip plate 26 is respectively provided with a lateral limiting rod 1 27 and a lateral limiting rod 29. Both ends of the lateral limiting rod 1 27 are fixedly connected to the fixing connection end 28. The lateral limiting rod 1 27 is fixedly connected to the fixing strip plate 26 through the fixing connection end 28 at both ends. Both ends of the lateral limiting rod 29 are fixedly connected to the fixing connection end 210 at both ends. The lateral limiting rod 29 is fixedly connected to the fixing strip plate 26 through the fixing connection end 210 at both ends.

[0033] A through hole is provided on the first fixed connection end 28, and a threaded hole corresponding to the through hole is provided on the fixed strip 26. A bolt is provided between the first fixed connection end 28 and the fixed strip 26. The bolt passes through the through hole on the first fixed connection end 28 and is threadedly connected to the threaded hole on the fixed strip 26. A through hole is provided on the second fixed connection end 210, and a threaded hole corresponding to the through hole is provided on the fixed strip 26. A bolt is provided between the second fixed connection end 210 and the fixed strip 26. The bolt passes through the through hole on the second fixed connection end 210 and is threadedly connected to the threaded hole on the fixed strip 26.

[0034] The end of the limiting side plate 22 away from the supporting base plate 24 is fixedly connected to the upper limiting rod 211, and the two ends of the upper limiting rod 211 are fixedly connected to the limiting side plate 22 by bolts.

[0035] In some specific embodiments, a temperature sensor 4 for monitoring the temperature of the battery 3 is provided on the lateral limiting rod 29.

[0036] One end of the component connecting pipe 11 is connected to and fixedly connected to the connecting pipe port 12, and the other end of the component connecting pipe 11 is connected to and fixedly connected to the connecting pipe port 13. The component connecting pipes 11 of adjacent heat dissipation components 100 are connected to each other through the connecting pipe port 12 and the connecting pipe port 13. A connecting pipe 14 is fixedly connected to and connected to the component connecting pipe 11, and the heat dissipation pipe 15 is connected to the component connecting pipe 11 through the connecting pipe 14.

[0037] In some specific embodiments, the on / off valve 16 is fixedly installed on the connecting pipe 14.

[0038] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0039] The heat dissipation assembly 100 comprises the symmetrically arranged assembly connecting pipes 11 and the coiled heat dissipation pipes 15, the heat dissipation pipes 15 are communicated with the assembly connecting pipes 11, the connection between the two ends of the heat dissipation pipes 15 and the assembly connecting pipes 11 is provided with the on-off valves 16, in use, the two ends of the assembly connecting pipes 11 are communicated with the circulating refrigerant tank, due to the arrangement of the on-off valves 16, the on-off of the single heat dissipation pipe 15 is adjustable, at the same time, the temperature of the multiple batteries 3 is monitored through the temperature sensor 4 on the lateral limiting rod two 29, so that the battery 3 working at high temperature can be cooled down, which is beneficial to improve the heat dissipation efficiency of the whole device and improve the practicability of the device, the heating plate 21, the limiting side plate 22 and the supporting bottom plate 24 are provided with the mounting groove, the battery 3 is arranged in the mounting groove, the limiting side plate 22 is uniformly distributed and fixedly connected with the heat dissipation fins one 23, the supporting bottom plate 24 is uniformly distributed and fixedly connected with the heat dissipation fins two 25, the connecting mechanism 2 can be used as the fixed frame of the battery 3, at the same time, the connecting mechanism 2 can provide passive heat dissipation for the battery 3, which is beneficial to further improve the heat dissipation efficiency of the whole device and further improve the practicability of the device.

[0040] The above describes several embodiments of the present application in detail, but the embodiments of the present application are not limited to this, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements within the scope of the present application should still belong to the patent coverage of the present application.

Claims

1. A temperature control device for a lithium iron phosphate battery pack for an energy storage system, characterized by, The utility model relates to a heat dissipation mechanism (1) and a connecting mechanism (2), and the heat dissipation mechanism (1) comprises a heat dissipation assembly (100), the heat dissipation assembly (100) comprises symmetrically arranged assembly connecting pipes (11) and coiled heat dissipation pipes (15), the two ends of the heat dissipation pipe (15) are communicated with the assembly connecting pipe (11), and the connecting parts between the heat dissipation pipe (15) and the assembly connecting pipe (11) are provided with on-off valves (16). The connecting mechanism (2) comprises a uniform heat plate (21), the uniform heat plate (21) is fixedly installed on the heat dissipation pipe (15), the uniform heat plate (21) is fixedly connected with a supporting bottom plate (24), the two sides of the uniform heat plate (21) are fixedly connected with limiting side plates (22), the limiting side plates (22) are arranged on the two sides of the supporting bottom plate (24), and the uniform heat plate (21), the limiting side plates (22) and the supporting bottom plate (24) are provided with mounting grooves, and the mounting grooves are provided with storage batteries (3). The limiting side plates (22) are fixedly connected with heat dissipation fins (23) which are evenly distributed on the limiting side plates (22) and are arranged on the outer side end surfaces of the limiting side plates (22), and the supporting bottom plate (24) is fixedly connected with heat dissipation fins (25) which are evenly distributed on the supporting bottom plate (24) and are arranged on the outer side end surfaces of the supporting bottom plate (24).

2. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 1, characterized in that, The limiting side plates (22) are fixedly connected with fixed strip plates (26), the fixed strip plates (26) are respectively provided with lateral limiting rods (27) and lateral limiting rods (29), the two ends of the lateral limiting rod (27) are fixedly connected with fixed connection ends (28), the lateral limiting rod (27) is fixedly connected with the fixed strip plate (26) through the fixed connection ends (28) at the two ends, the two ends of the lateral limiting rod (29) are fixedly connected with fixed connection ends (210), and the lateral limiting rod (29) is fixedly connected with the fixed strip plate (26) through the fixed connection ends (210) at the two ends.

3. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 1, characterized in that, The fixed connection ends (28) are provided with connecting through holes (1), the fixed strip plates (26) are provided with connecting threaded holes (1) corresponding to the connecting through holes (1), and the fixed connection ends (28) and the fixed strip plates (26) are provided with bolts (1) which are screwed into the connecting through holes (1) of the fixed connection ends (28) and the connecting threaded holes (1) of the fixed strip plates (26).

4. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 3, characterized in that, The fixed connection ends (210) are provided with connecting through holes (2), the fixed strip plates (26) are provided with connecting threaded holes (2) corresponding to the connecting through holes (2), and the fixed connection ends (210) and the fixed strip plates (26) are provided with bolts (2) which are screwed into the connecting through holes (2) of the fixed connection ends (210) and the connecting threaded holes (2) of the fixed strip plates (26).

5. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 1, characterized in that, The limiting side plates (22) are fixedly connected with upper end limiting rods (211) which are away from the supporting bottom plate (24), and the two ends of the upper end limiting rods (211) are fixedly connected to the limiting side plates (22) through bolts.

6. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 1, characterized in that, The lateral limiting rod (29) is provided with a temperature sensor (4) for monitoring the temperature of the storage battery (3).

7. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 3, characterized in that, ​ 8. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 1, characterized in that, The assembly connecting pipe (11) is communicated and fixedly connected with a connecting pipe opening (12) at one end, and communicated and fixedly connected with a counter connecting pipe opening (13) at the other end, and the assembly connecting pipes (11) of adjacent heat dissipation assemblies (100) are communicated through the connecting pipe opening (12) and the counter connecting pipe opening (13).

9. The temperature control device for lithium iron phosphate battery pack of energy storage system according to claim 1, characterized in that, The assembly connecting pipe (11) is fixedly connected and communicated with a connecting pipe (14), and the heat dissipation pipe (15) is communicated with the assembly connecting pipe (11) through the connecting pipe (14).

10. The temperature control device for lithium iron phosphate battery bank of energy storage system according to claim 9, characterized in that, The on-off valve (16) is fixedly installed on the connecting pipe (14).

Images