Energy storage battery thermal management device based on phase change material

Abstract

The utility model discloses an energy storage battery thermal management device based on a phase change material, which relates to the technical field of electric energy storage, and comprises a base, the base further comprises an adjusting mechanism, the top of the base is fixedly connected with a shell, and the top of the shell is fixedly connected with a plurality of storage cylinders; the electric telescopic rod is started to drive the connecting plate to move upwards, and the connecting plate can simultaneously drive the heat preservation plates to move upwards in the upward moving process, so that the heat dissipation grooves in the storage cylinder are shielded, and heat in the energy storage battery can be effectively prevented from being lost after the heat dissipation grooves are shielded; meanwhile, external cold air can be prevented from being in contact with the energy storage battery, heat loss and cold air contact are prevented by shielding the heat dissipation grooves, the battery can be kept in a relatively appropriate working temperature interval, the charging and discharging performance of the battery can be improved, the battery can output stable electric quantity in a low-temperature environment, and the service life of the battery is prolonged. And electric quantity loss caused by low temperature is reduced, and normal work of equipment in a cold environment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of power energy storage technology, and in particular to a thermal management device for energy storage batteries based on phase change materials. Background Technology

[0002] With the significant increase in my country's installed capacity of new energy sources, the high penetration rate poses a threat to the safe operation of the power grid. Issues such as wind and solar power curtailment leading to economic losses and voltage exceeding limits at the grid's end are causing challenges to the industry's development. Energy storage in the power grid can significantly improve the absorption of renewable energy sources like wind and solar, smooth renewable energy output, and participate in grid frequency regulation services, playing a crucial role in the sustainable development of new energy in the future.

[0003] In high-temperature environments, the internal chemical reaction rate of a battery accelerates, which can lead to changes in the crystal structure of the battery's positive electrode material. In low-temperature environments, the kinetics of the electrode reaction are hindered, which can also prevent the battery capacity from being fully released. Prolonged exposure to this state can cause permanent capacity decay. Both excessively high and excessively low temperatures cannot meet the normal use requirements of energy storage batteries. Utility Model Content

[0004] The purpose of this invention is to provide a thermal management device for energy storage batteries based on phase change materials, so as to solve at least one of the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a thermal management device for energy storage batteries based on phase change materials, including a base, the base further including an adjustment mechanism, a shell fixedly connected to the top of the base, and a plurality of storage cylinders fixedly connected to the top of the shell, the plurality of storage cylinders all penetrating the shell and all fixedly connected to the top of the base.

[0006] Preferably, the outer wall of the storage cylinder has several heat dissipation grooves, the top of the base is fixedly connected to a cylinder, and the inner wall of the cylinder has a sliding groove.

[0007] Preferably, an insulation board is slidably connected inside the chute, and the side of the insulation board away from the chute is slidably connected to the outer wall of the storage cylinder.

[0008] Preferably, an electric telescopic rod is fixedly connected to the top of the base, and a connecting plate is fixedly connected to the end of the electric telescopic rod away from the base. The outer wall of the connecting plate is fixedly connected to the insulation board.

[0009] Preferably, a plurality of fixing plates are fixedly connected to the outer wall of the shell, a fixing sleeve is fixedly connected to the top of the plurality of fixing plates, and an annular plate is fixedly connected to the inner wall of the fixing sleeve.

[0010] Preferably, a support plate is fixedly connected to the inner wall of the annular plate, and a drive motor is fixedly connected to the top of the support plate.

[0011] Preferably, the bottom of the support plate is rotatably connected to a rotating shaft, which passes through the support plate and is fixedly connected to the output shaft of the drive motor.

[0012] Preferably, a connecting block is fixedly connected to the end of the rotating shaft away from the drive motor, and several fan blades are fixedly connected to the outer wall of the connecting block.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this utility model:

[0015] 1. During the use of this device, when the temperature of the energy storage battery placed in the storage cylinder becomes too low, the electric telescopic rod is activated. The electric telescopic rod moves the connecting plate upward, and during the upward movement of the connecting plate, it can simultaneously move several heat insulation plates upward, thereby blocking the heat dissipation slots on the storage cylinder. Blocking the heat dissipation slots can effectively prevent heat loss from the energy storage battery, and at the same time, it can prevent cold air from coming into contact with the energy storage battery. By blocking the heat dissipation slots and preventing heat loss and cold air contact, the battery can be kept in a relatively suitable operating temperature range. This helps to improve the charging and discharging performance of the battery, so that the battery can output stable power even in low-temperature environments, reduce power loss caused by low temperature, extend the battery's usage time after a single charge, and ensure that the equipment works normally in cold environments.

[0016] 2. When the battery inside the storage container overheats, activate the electric telescopic rod. The electric telescopic rod moves the insulation plate downwards, at which point the insulation plate no longer blocks the heat dissipation slots, allowing excess heat from the energy storage battery to dissipate outwards through the heat dissipation slots. Simultaneously, activate the drive motor, which drives the rotating shaft and connecting block to rotate. The rotation of the connecting block then drives several fan blades to rotate simultaneously, accelerating the surrounding airflow and creating forced convection. Forced convection significantly improves heat dissipation efficiency, allowing hot air on the battery surface to be quickly carried away, accelerating heat dissipation, effectively reducing battery temperature, and ensuring stable operation of the energy storage battery. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the thermal management device for energy storage batteries based on phase change materials provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the adjustment mechanism;

[0019] Figure 3 for Figure 2 A magnified structural diagram of A in the middle;

[0020] Figure 4 This is a cross-sectional structural diagram of the adjustment mechanism;

[0021] Figure 5 for Figure 4 A magnified structural diagram of B in the diagram.

[0022] In the diagram: 1. Adjustment mechanism; 101. Base; 102. Housing; 103. Storage cylinder; 104. Heat dissipation groove; 105. Cylinder; 106. Slide groove; 107. Insulation board; 108. Electric telescopic rod; 109. Connecting plate; 110. Fixing plate; 111. Fixing sleeve; 112. Annular plate; 113. Support plate; 114. Drive motor; 115. Rotating shaft; 116. Connecting block; 117. Fan blade. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-5 The thermal management device for energy storage batteries based on phase change materials shown includes a base 101, which also includes an adjustment mechanism 1. A housing 102 is fixedly connected to the top of the base 101. Several storage cylinders 103 are fixedly connected to the top of the housing 102. The storage cylinders 103 all penetrate the housing 102 and are fixedly connected to the top of the base 101. Several heat dissipation grooves 104 are formed on the outer wall of the storage cylinders 103. A cylinder 105 is fixedly connected to the top of the base 101. A sliding groove 106 is formed on the inner wall of the cylinder 105. An insulation plate 107 is slidably connected in the sliding groove 106. The side of the insulation plate 107 away from the sliding groove 106 is slidably connected to the outer wall of the storage cylinder 103. An electric telescopic rod 108 is fixedly connected to the top of the base 101. A connecting plate 109 is fixedly connected to the end of the electric telescopic rod 108 away from the base 101. The outer wall of the connecting plate 109 is fixedly connected to the insulation plate 107.

[0025] During the use of this device, when the temperature of the energy storage battery placed in the storage cylinder 103 becomes too low, the electric telescopic rod 108 is activated. The electric telescopic rod 108 drives the connecting plate 109 to move upward. During the upward movement of the connecting plate 109, several heat insulation plates 107 can be moved upward at the same time, thereby blocking the heat dissipation grooves 104 on the storage cylinder 103. Blocking the heat dissipation grooves 104 can effectively prevent heat loss from the energy storage battery, and can also prevent cold air from coming into contact with the energy storage battery. By blocking the heat dissipation grooves to prevent heat loss and cold air contact, the battery can be kept in a relatively suitable operating temperature range. This helps to improve the charging and discharging performance of the battery, so that the battery can output stable power in low temperature environment, reduce power loss caused by low temperature, extend the battery's usage time after a single charge, and ensure that the equipment works normally in cold environment.

[0026] A plurality of fixing plates 110 are fixedly connected to the outer wall of the housing 102. A fixing sleeve 111 is fixedly connected to the top of the plurality of fixing plates 110. An annular plate 112 is fixedly connected to the inner wall of the fixing sleeve 111. A support plate 113 is fixedly connected to the inner wall of the annular plate 112. A drive motor 114 is fixedly connected to the top of the support plate 113. A rotating shaft 115 is rotatably connected to the bottom of the support plate 113. The rotating shaft 115 passes through the support plate 113 and is fixedly connected to the output shaft of the drive motor 114. A connecting block 116 is fixedly connected to the end of the rotating shaft 115 away from the drive motor 114. A plurality of fan blades 117 are fixedly connected to the outer wall of the connecting block 116.

[0027] When the battery inside the storage cylinder 103 becomes too hot, the electric telescopic rod 108 is activated. The electric telescopic rod 108 moves the insulation plate 107 downward. At this time, the insulation plate 107 no longer blocks the heat dissipation slot 104, allowing excess heat in the energy storage battery to be discharged to the outside through the heat dissipation slot 104. At the same time, the drive motor 114 is activated, driving the rotating shaft 115 and the connecting block 116 to rotate. After the connecting block 116 rotates, it drives several fan blades 117 to rotate simultaneously, accelerating the surrounding airflow and forming forced convection. Forced convection can significantly improve heat dissipation efficiency, allowing the hot air on the battery surface to be quickly carried away, accelerating the heat dissipation speed, effectively reducing the battery temperature, and ensuring the stable operation of the energy storage battery.

[0028] The working principle of the energy storage battery thermal management device based on phase change material provided by this utility model is as follows: When the temperature of the energy storage battery placed in the storage cylinder 103 is too low during the use of the device, the electric telescopic rod 108 is activated. The electric telescopic rod 108 drives the connecting plate 109 to move upward. During the upward movement of the connecting plate 109, it can simultaneously drive several heat insulation plates 107 to move upward, thereby blocking the heat dissipation groove 104 on the storage cylinder 103. After blocking the heat dissipation groove 104, the heat dissipation in the energy storage battery can be effectively prevented from dissipating, and the cold air from the outside can also be prevented from contacting the energy storage battery.

[0029] When the battery inside the storage cylinder 103 becomes too hot, the electric telescopic rod 108 is activated. The electric telescopic rod 108 moves the heat insulation plate 107 downward. At this time, the heat insulation plate 107 no longer blocks the heat dissipation slot 104, allowing the excess heat in the energy storage battery to be discharged to the outside through the heat dissipation slot 104. At the same time, the drive motor 114 is activated, which drives the rotating shaft 115 and the connecting block 116 to rotate. After the connecting block 116 rotates, it drives several fan blades 117 to rotate simultaneously, accelerating the surrounding airflow.

[0030] Compared with related technologies, the thermal management device for energy storage batteries based on phase change materials provided by this utility model has the following beneficial effects:

[0031] This utility model provides a thermal management device for energy storage batteries based on phase change materials. When the temperature of the energy storage battery placed in the storage cylinder 103 is too low during the use of this device, the electric telescopic rod 108 is activated. The electric telescopic rod 108 drives the connecting plate 109 to move upward. During the upward movement of the connecting plate 109, several heat insulation plates 107 can be moved upward at the same time, thereby blocking the heat dissipation grooves 104 on the storage cylinder 103. Blocking the heat dissipation grooves 104 can effectively prevent heat loss from the energy storage battery, and can also prevent cold air from contacting the energy storage battery. By blocking the heat dissipation grooves to prevent heat loss and contact with cold air, the battery can be kept in a relatively suitable operating temperature range. This helps to improve the charging and discharging performance of the battery, so that the battery can output stable power in low temperature environment, reduce power loss caused by low temperature, extend the battery's usage time after a single charge, and ensure that the equipment works normally in cold environment.

[0032] When the battery inside the storage cylinder 103 becomes too hot, the electric telescopic rod 108 is activated. The electric telescopic rod 108 moves the insulation plate 107 downward. At this time, the insulation plate 107 no longer blocks the heat dissipation slot 104, allowing excess heat in the energy storage battery to be discharged to the outside through the heat dissipation slot 104. At the same time, the drive motor 114 is activated, driving the rotating shaft 115 and the connecting block 116 to rotate. After the connecting block 116 rotates, it drives several fan blades 117 to rotate simultaneously, accelerating the surrounding airflow and forming forced convection. Forced convection can significantly improve heat dissipation efficiency, allowing the hot air on the battery surface to be quickly carried away, accelerating the heat dissipation speed, effectively reducing the battery temperature, and ensuring the stable operation of the energy storage battery.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermal management device for an energy storage battery based on phase change materials, comprising a base (101), wherein the base (101) further comprises an adjustment mechanism (1), characterized in that: The top of the base (101) is fixedly connected to a shell (102), and the top of the shell (102) is fixedly connected to a plurality of storage cylinders (103). The plurality of storage cylinders (103) all penetrate the shell (102) and are fixedly connected to the top of the base (101). The outer wall of the storage cylinders (103) has a plurality of heat dissipation grooves (104). The top of the base (101) is fixedly connected to a cylinder (105). The inner wall of the cylinder (105) is provided with a sliding groove (106). A heat insulation plate (107) is slidably connected in the sliding groove (106). The side of the heat insulation plate (107) away from the sliding groove (106) is slidably connected to the outer wall of the storage cylinder (103). The top of the base (101) is fixedly connected to an electric telescopic rod (108), and the end of the electric telescopic rod (108) away from the base (101) is fixedly connected to a connecting plate (109). The outer wall of the connecting plate (109) is fixedly connected to the insulation plate (107). Several fixing plates (110) are fixedly connected to the outer wall of the shell (102). A fixing sleeve (111) is fixedly connected to the top of the fixing plates (110). An annular plate (112) is fixedly connected to the inner wall of the fixing sleeve (111). A support plate (113) is fixedly connected to the inner wall of the annular plate (112). A drive motor (114) is fixedly connected to the top of the support plate (113). A rotating shaft (115) is rotatably connected to the bottom of the support plate (113). The rotating shaft (115) passes through the support plate (113) and is fixedly connected to the output shaft of the drive motor (114). A connecting block (116) is fixedly connected to the end of the rotating shaft (115) away from the drive motor (114). Several fan blades (117) are fixedly connected to the outer wall of the connecting block (116).

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