Temperature control type efficient energy storage lithium battery

Abstract

The utility model provides a temperature control type efficient energy storage lithium battery, and relates to the technical field of lithium batteries. Comprising a shell, a plurality of heat conduction pads are installed in the shell in an array mode, lithium battery cells are installed between every two adjacent heat conduction pads in the shell, and a heat dissipation chamber is further arranged in the shell. A water pump in the circulating mechanism can enable cooling liquid in a water storage tank to flow and circulate in a first circulating pipeline and a second circulating pipeline, and when the cooling liquid flows in the first circulating pipeline, a heat conduction pad conducts heat of a lithium battery cell to the first circulating pipeline, so that the cooling liquid in the first circulating pipeline is heated; the cooling liquid brings heat in the lithium battery core into the second circulation pipeline, the heat is conducted to each cooling fin through the second circulation pipeline, and meanwhile, the flow rate of air near the cooling fins is increased through the fan, so that the heat is taken away by the air more quickly, and the purpose of improving the heat dissipation efficiency of the lithium battery is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium batteries, in particular to a temperature-controlled high-efficiency energy storage lithium battery. Background Art

[0002] Lithium batteries are divided into lithium batteries and lithium-ion batteries; mobile phones and laptops use lithium-ion batteries, which are commonly referred to as lithium batteries; batteries generally use materials containing lithium elements as electrodes and are the representative of modern high-performance batteries.

[0003] Lithium batteries will generate a lot of heat during the charging and discharging process. If lithium batteries are operated in a high temperature environment for a long time, it will not only accelerate the attenuation rate and affect the service life of lithium batteries, but in serious cases, it will cause lithium batteries to spontaneously combust, bringing certain safety hazards.

[0004] In summary, the present invention provides a temperature-controlled high-efficiency energy storage lithium battery to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a temperature-controlled high-efficiency energy storage lithium battery to solve the problems in the prior art.

[0006] A temperature-controlled high-efficiency energy storage lithium battery comprises a shell, wherein a plurality of heat-conducting pads are arranged in an array inside the shell, lithium battery cells are arranged between two adjacent heat-conducting pads inside the shell, a heat-dissipating chamber is arranged inside the shell, a first circulation pipeline is arranged inside each of the heat-conducting pads, two adjacent first circulation pipelines are connected end to end, and the other ends of the first circulation pipelines at both ends penetrate into the heat-dissipating chamber, one end of the first circulation pipeline penetrating into the heat-dissipating chamber is connected to a first heat-dissipating main pipe and a circulation mechanism, the other side of the circulation mechanism is connected to a second heat-dissipating main pipe through a connecting pipe, a plurality of heat sinks are evenly arranged between the first heat-dissipating main pipe and the second heat-dissipating main pipe in the heat-dissipating chamber, a plurality of second circulation pipelines are arranged in an array between the first heat-dissipating main pipe and the second heat-dissipating main pipe inside the heat-dissipating chamber, and both ends of the second circulation pipeline are respectively connected to the first heat-dissipating main pipe and the second heat-dissipating main pipe.

[0007] Furthermore, the first circulation pipeline and the second circulation pipeline are both in an S-shape, the second circulation pipeline runs through each of the heat sinks, and the second circulation pipeline is connected to each of the heat sinks by welding.

[0008] Furthermore, the thermal pad is made of thermally conductive silicone grease.

[0009] Furthermore, the circulation mechanism includes a water tank, a water tank is provided inside the water tank, and the circulation pipeline is connected to the water tank. A water pump is also installed inside the water tank, the water inlet of the water pump is connected to the water tank, and the water outlet of the water pump is connected to the connecting pipe.

[0010] Furthermore, a plurality of passive heat dissipation holes are arranged in arrays on the top and bottom of the housing, and the passive heat dissipation holes correspond to the positions of the respective lithium battery cells.

[0011] Furthermore, an air inlet and an air outlet are respectively provided at the top and the bottom of the heat dissipation chamber, and filters are installed inside the air inlet and the air outlet. A heat dissipation fan is installed inside the heat dissipation chamber at the air inlet position.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides a circulation mechanism, and a water pump in the circulation mechanism can make the coolant in the water storage tank flow and circulate in the first circulation pipeline and the second circulation pipeline. When the coolant flows in the first circulation pipeline, the thermal pad transfers the heat of the lithium battery core to the first circulation pipeline, so that the coolant in the first circulation pipeline is heated, and the coolant brings the heat in the lithium battery core into the second circulation pipeline, and transfers the heat to each heat sink through the second circulation pipeline. At the same time, the fan accelerates the air flow rate near the heat sink, so that the heat is taken away by the air faster, so as to achieve the purpose of improving the heat dissipation efficiency of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model;

[0016] Figure 3 It is a schematic plan cross-sectional view of the heat dissipation chamber of the utility model;

[0017] Figure 4 It is a planar cross-sectional schematic diagram of the thermal conductive pad and the lithium battery core of the utility model.

[0018] In the figure:

[0019] 1. Shell; 2. Thermal pad; 3. Lithium battery cell; 4. Heat dissipation chamber; 5. First circulation pipeline; 6. First heat dissipation pipe; 7. Circulation mechanism; 701. Water storage tank; 702. Water storage tank; 703. Water pump; 8. Second heat dissipation pipe; 9. Heat sink; 10. Second circulation pipeline; 11. Passive heat dissipation holes; 12. Air inlet; 13. Air outlet; 14. Filter; 15. Cooling fan. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] like Figure 1-4 As shown, the utility model provides a temperature-controlled high-efficiency energy storage lithium battery, comprising a shell 1, a plurality of heat-conducting pads 2 are arrayed inside the shell 1, lithium battery cells 3 are installed between two adjacent heat-conducting pads 2 inside the shell 1, a heat dissipation chamber 4 is also arranged inside the shell 1, a first circulation pipeline 5 is arranged inside each heat-conducting pad 2, and two adjacent first circulation pipelines 5 are connected end to end, and the other ends of the first circulation pipelines 5 at both ends are penetrated into the heat dissipation chamber 4, and one end of the first circulation pipeline 5 penetrating into the heat dissipation chamber 4 is connected to a first heat dissipation main pipe 6 and a circulation mechanism 7, the circulation mechanism 7 is used to drive the coolant to circulate in the first circulation pipeline 5 and the second circulation pipeline 10, the other side of the circulation mechanism 7 is connected to the second heat dissipation main pipe 8 through a connecting pipe, a plurality of heat sinks 9 are evenly arranged between the first heat dissipation main pipe 6 and the second heat dissipation main pipe 8 in the heat dissipation chamber 4, a plurality of second circulation pipelines 10 are arrayed between the first heat dissipation main pipe 6 and the second heat dissipation main pipe 8 in the heat dissipation chamber 4, and the two ends of the second circulation pipeline 10 are respectively connected to the first heat dissipation main pipe 6 and the second heat dissipation main pipe 8.

[0022] Among them, the first circulation pipeline 5 and the second circulation pipeline 10 are both S-shaped, which makes it easy for the heat of the lithium battery cell 3 and the heat of the second circulation pipeline 10 to be fully transferred to the first circulation pipeline 5 and the heat sink 9. The second circulation pipeline 10 runs through each heat sink 9, and the second circulation pipeline 10 is connected to each heat sink 9 by welding.

[0023] The thermal pad 2 is made of thermally conductive silicone grease, and the heat on the lithium battery core 3 is transferred to the first circulation pipeline 5 through the thermally conductive silicone grease.

[0024] Among them, the circulation mechanism 7 includes a water tank 701, a water tank 702 is opened inside the water tank 701, and the circulation pipeline is connected to the water tank 702. The water tank 702 is used to store cooling water to replenish the cooling water in the first circulation pipeline 5 and the second circulation pipeline 10. A water pump 703 is also installed inside the water tank 701. The water inlet of the water pump 703 is connected to the water tank 702, and the water outlet of the water pump 703 is connected to the connecting pipe. The cooling water is circulated in the first circulation pipeline 5 and the second circulation pipeline 10 through the water pump 703.

[0025] A plurality of passive heat dissipation holes 11 are arranged in arrays on the top and bottom of the housing 1 . The passive heat dissipation holes 11 are used to passively dissipate heat from the lithium battery cells 3 , and the passive heat dissipation holes 11 correspond to the positions of the lithium battery cells 3 .

[0026] Among them, the top and bottom of the heat dissipation chamber 4 are respectively provided with an air inlet 12 and an air outlet 13, the air inlet 12 and the air outlet 13 are used for air flow, and the inner sides of the air inlet 12 and the air outlet 13 are installed with a filter 14, the filter 14 can reduce the amount of dust entering the heat dissipation chamber 4, and prevent the surface of the heat sink 9 from being covered with dust, resulting in reduced heat dissipation efficiency. A cooling fan 15 is installed at the position of the air inlet 12 inside the heat dissipation chamber 4, and the cooling fan 15 accelerates the flow rate of the airflow near the heat sink 9, thereby facilitating the heat dissipation of the heat on the heat sink 9.

[0027] Specific working principle:

[0028] When the utility model is in use, through the circulation mechanism 7, the water pump 703 in the circulation mechanism 7 can make the coolant in the water storage tank 702 flow and circulate in the first circulation pipeline 5 and the second circulation pipeline 10. When the coolant flows in the first circulation pipeline 5, the thermal pad 2 conducts the heat of the lithium battery cell 3 to the first circulation pipeline 5, so that the coolant in the first circulation pipeline 5 is heated up, and the coolant brings the heat in the lithium battery cell 3 into the second circulation pipeline 10, and conducts the heat to each heat sink 9 through the second circulation pipeline 10. At the same time, the fan accelerates the air flow rate near the heat sink 9, so that the heat is taken away by the air faster, thereby achieving the purpose of improving the heat dissipation efficiency of the lithium battery.

[0029] The implementation modes of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A temperature-controlled high-efficiency energy storage lithium battery, characterized in that: The invention comprises a shell (1), wherein a plurality of heat-conducting pads (2) are installed in an array inside the shell (1), wherein a lithium battery cell (3) is installed between two adjacent heat-conducting pads (2) inside the shell (1), and a heat-dissipating chamber (4) is also arranged inside the shell (1), wherein a first circulation pipeline (5) is arranged inside each of the heat-conducting pads (2), and two adjacent first circulation pipelines (5) are connected end to end, and the other ends of the first circulation pipelines (5) at both ends penetrate into the heat-dissipating chamber (4), and one end of the first circulation pipeline (5) penetrates into the heat-dissipating chamber (4). Both are connected to a first heat dissipation main pipe (6) and a circulation mechanism (7); the other side of the circulation mechanism (7) is connected to a second heat dissipation main pipe (8) via a connecting pipe; a plurality of heat dissipation fins (9) are evenly arranged between the first heat dissipation main pipe (6) and the second heat dissipation main pipe (8) in the heat dissipation chamber (4); a plurality of second circulation pipelines (10) are also arranged in an array between the first heat dissipation main pipe (6) and the second heat dissipation main pipe (8) in the heat dissipation chamber (4); and both ends of the second circulation pipeline (10) are respectively connected to the first heat dissipation main pipe (6) and the second heat dissipation main pipe (8).

2. The temperature-controlled high-efficiency energy storage lithium battery according to claim 1, characterized in that: The first circulation pipeline (5) and the second circulation pipeline (10) are both S-shaped, the second circulation pipeline (10) passes through each of the heat sinks (9), and the second circulation pipeline (10) and each of the heat sinks (9) are connected together by welding.

3. The temperature-controlled high-efficiency energy storage lithium battery according to claim 1, characterized in that: The thermally conductive pad (2) is made of thermally conductive silicone grease.

4. The temperature-controlled high-efficiency energy storage lithium battery according to claim 1, characterized in that: The circulation mechanism (7) comprises a water storage tank (701), a water storage tank (702) is provided inside the water storage tank (701), and the circulation pipeline is connected to the water storage tank (702). A water pump (703) is also installed inside the water storage tank (701), the water inlet of the water pump (703) is connected to the water storage tank (702), and the water outlet of the water pump (703) is connected to the connecting pipe.

5. The temperature-controlled high-efficiency energy storage lithium battery according to claim 1, characterized in that: A plurality of passive heat dissipation holes (11) are arranged in arrays on the top and bottom of the housing (1), and the passive heat dissipation holes (11) correspond to the positions of the respective lithium battery cells (3).

6. The temperature-controlled high-efficiency energy storage lithium battery according to claim 1, characterized in that: The top and bottom of the heat dissipation chamber (4) are respectively provided with an air inlet (12) and an air outlet (13); filters (14) are installed inside the air inlet (12) and the air outlet (13); and a heat dissipation fan (15) is installed inside the heat dissipation chamber (4) at the position of the air inlet (12).

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