Liquid cooling heat dissipation mechanism and household energy storage device

Abstract

The utility model relates to energy storage device technical field, specifically disclose a liquid cooling heat dissipation mechanism and domestic energy storage device, including the casing, install the battery group, inverter and cooling assembly in the casing, and cooling assembly includes cooling mechanism, circulating pump, radiator pipe frame, and the cooling liquid is filled in cooling mechanism, and the battery group includes a plurality of batteries, and a plurality of batteries are evenly installed on radiator pipe frame, and the inverter is provided with the heat dissipation channel, and the water outlet end of cooling mechanism is connected with the water inlet end of circulating pump, and the water inlet end of heat dissipation channel, the water inlet end of radiator pipe frame is connected with the water outlet end of circulating pump respectively, and the water outlet end of heat dissipation channel, the water outlet end of radiator pipe frame is connected with the water inlet end of cooling mechanism respectively. The utility model makes the battery group and inverter heat dissipation more uniform and reliable, and greatly reduced the temperature of battery group, inverter to reduce the heat dissipation energy consumption of whole machine, reach the ideal cooling effect, prolong the life.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, specifically to a liquid cooling heat dissipation mechanism and a household energy storage device. Background Technology

[0002] Home energy storage devices include battery packs and inverters. However, since current battery packs and inverters usually use natural heat dissipation and air cooling, there are problems such as uneven heat dissipation, high overall heat dissipation energy consumption, and high temperatures of battery packs and inverters during daily use. As a result, the temperatures of battery packs and inverters remain high, and the cooling effect cannot be ideal. Utility Model Content

[0003] The present invention aims to provide a liquid cooling heat dissipation mechanism to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a liquid cooling heat dissipation mechanism, including a housing, a battery pack, an inverter, and a cooling component installed inside the housing. The cooling component includes a cooling mechanism, a circulating pump, and a heat dissipation tube frame. The cooling mechanism is filled with coolant. The battery pack includes multiple batteries, which are evenly installed on the heat dissipation tube frame. A heat dissipation channel is provided inside the inverter. The water outlet of the cooling mechanism is connected to the water inlet of the circulating pump. The water inlet of the heat dissipation channel and the water inlet of the heat dissipation tube frame are respectively connected to the water outlet of the circulating pump. The water outlet of the heat dissipation channel and the water outlet of the heat dissipation tube frame are respectively connected to the water inlet of the cooling mechanism.

[0005] Preferably, the inverter includes an inverter board and power devices mounted on one side of the inverter board, as well as an inductor heat sink and an inductor mounted on one side of the inductor heat sink. The inverter board has a first heat dissipation channel, and the inductor heat sink has a second heat dissipation channel. The first heat dissipation channel and the second heat dissipation channel are interconnected to form the heat dissipation channel.

[0006] Preferably, the cooling mechanism includes a cooling water tank and a fan disposed on one side of the cooling water tank. The coolant is located inside the cooling water tank, and the fan is used to blow cold air towards the cooling water tank to cool the coolant.

[0007] Preferably, the cooling assembly further includes first, second, third, fourth, and fifth pipes. The outlet of the cooling water tank is connected to the inlet of the circulating pump through the first pipe. The second pipe is a Y-shaped pipe. The outlet of the circulating pump is connected to the inlet of the first heat dissipation channel and the inlet of the heat dissipation tube frame through the second pipe. The outlet of the first heat dissipation channel is connected to the inlet of the second heat dissipation channel through the third pipe. The outlet of the second heat dissipation channel is connected to the inlet of the cooling water tank through the fourth pipe. The outlet of the heat dissipation tube frame is connected to the inlet of the cooling water tank through the fifth pipe.

[0008] Preferably, the surface of the cooling water tank has multiple fin structures.

[0009] Preferably, the housing is provided with a first chamber, a second chamber, and a third chamber in sequence from top to bottom. The inverter is installed in the first chamber, the cooling mechanism and the circulating pump are installed in the second chamber, and the heat dissipation tube rack is installed in the third chamber.

[0010] Preferably, the heat dissipation tube frame includes a horizontal water inlet pipe and a horizontal water outlet pipe arranged in a front-to-back manner, and a plurality of U-shaped heat dissipation tubes arranged in a left-to-right manner. The top two ends of the U-shaped heat dissipation tubes are respectively connected to the horizontal water inlet pipe and the horizontal water outlet pipe, and the battery is installed close to the space between two adjacent U-shaped heat dissipation tubes.

[0011] Preferably, the horizontal water inlet pipe, the horizontal water outlet pipe, and the U-shaped heat dissipation pipe are square tube structures with a rectangular cross-section.

[0012] This utility model also provides a household energy storage device, including any of the liquid cooling heat dissipation mechanisms described above.

[0013] This utility model has the following beneficial effects:

[0014] This invention employs a water cooling system, with multiple batteries evenly mounted on a heat dissipation tube rack. This allows the coolant to circulate and carry away the heat generated by the inverter and battery pack, resulting in more uniform and reliable heat dissipation for the battery pack and inverter. It also significantly reduces the temperature of the battery pack and inverter, thereby reducing the overall energy consumption of the device, achieving a more ideal cooling effect, and extending its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance of an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure from one angle of an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure from another angle of an embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the internal structure from another angle of an embodiment of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the inverter in an embodiment of this utility model.

[0020] Figure 6 This is a cross-sectional view of an embodiment of the present invention at the inverter.

[0021] Figure 7This is a schematic diagram of the heat sink bracket according to an embodiment of the present invention.

[0022] Figure labels: 1. Housing, 2. Circulation pump, 3. Cooling mechanism, 31. Cooling water tank, 32. Fan, 4. Inverter, 41. Inverter board, 42. Power device, 43. Inductor heat sink, 44. Inductor, 45. First heat dissipation channel, 46. Second heat dissipation channel, 5. Heat dissipation tube rack, 51. Horizontal water inlet pipe, 52. Horizontal water outlet pipe, 53. U-shaped heat dissipation tube, 6. First pipe, 7. Second pipe, 8. Third pipe, 9. Fourth pipe, 10. Fifth pipe, 11. First chamber, 12. Second chamber, 13. Third chamber. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] See Figure 1-7As shown in the figure, as an embodiment of the present invention, a liquid cooling heat dissipation mechanism is provided for installation in a household energy storage device. It includes a housing 1, in which a battery pack, an inverter 4 and a cooling assembly are installed. The cooling assembly includes a cooling mechanism 3, a circulation pump 2 and a heat dissipation tube frame 5. The cooling mechanism 3 is filled with coolant. The battery pack includes multiple batteries, which are evenly installed on the heat dissipation tube frame 5. A heat dissipation channel is provided in the inverter 4. The water outlet of the cooling mechanism 3 is connected to the water inlet of the circulation pump 2. The water inlet of the heat dissipation channel and the water inlet of the heat dissipation tube frame 5 are respectively connected to the water outlet of the circulation pump 2. The water outlet of the heat dissipation channel and the water outlet of the heat dissipation tube frame 5 are respectively connected to the water inlet of the cooling mechanism 3. When cooling of the battery pack and inverter 4 is required, the circulation pump 2 is turned on. The coolant in the cooling mechanism 3 is divided into two paths by the circulation pump 2 and delivered to the heat dissipation channel of the inverter 4 and the heat dissipation tube frame 5 respectively. This allows the coolant in the heat dissipation channel to remove the heat generated by the inverter 4, and the coolant in the heat dissipation tube frame 5 to remove the heat generated by the battery pack. Then the coolant flows back to the cooling mechanism 3 for further cooling. The coolant is then circulated along the above path to circulate and cool the inverter 4 and battery pack. Because water cooling is used and multiple batteries are evenly installed on the heat dissipation tube frame 5, the heat dissipation of the battery pack and inverter 4 is more uniform and reliable, and the temperature of the battery pack and inverter 4 is greatly reduced. This reduces the overall energy consumption of the unit, achieves a more ideal cooling effect, and extends the service life.

[0027] In this embodiment, the inverter includes an inverter board 41 and power devices 42 mounted on one side of the inverter board 41, as well as an inductor heat sink 43 and an inductor 44 mounted on one side of the inductor heat sink 43. The inverter board 41 is provided with a first heat dissipation channel 45, and the inductor heat sink is provided with a second heat dissipation channel 46. The first heat dissipation channel 45 and the second heat dissipation channel 46 are interconnected to form the heat dissipation channel. The heat generated by the power devices 42 is transferred to the inverter board 41 and carried away by the coolant in the first heat dissipation channel 45 to achieve heat dissipation and cooling. The heat generated by the inductor 44 is transferred to the inductor heat sink 43 and carried away by the coolant in the second heat dissipation channel 46 to achieve heat dissipation and cooling.

[0028] In this embodiment, the cooling mechanism 3 includes a cooling water tank 31 and a fan 32 disposed on one side of the cooling water tank 31. The coolant is located inside the cooling water tank 31. The fan 32 is used to blow cold air towards the cooling water tank 31 to cool the coolant. The surface of the cooling water tank 31 has multiple fin structures, which can increase the surface area of ​​the cooling water tank 31, so that the heat brought back by the coolant can be fully transferred to the surface of the cooling water tank 31. When the fan 32 blows cold air towards the cooling water tank 31, it can quickly remove the heat, accelerate the cooling efficiency of the coolant, and ensure its rapid cooling.

[0029] In this embodiment, the cooling assembly further includes first, second, third, fourth, and fifth pipes 10. The outlet of the cooling water tank 31 is connected to the inlet of the circulating pump 2 through the first pipe 6. The second pipe 7 is a Y-shaped pipe. The outlet of the circulating pump 2 is connected to the inlet of the first heat dissipation channel 411 and the inlet of the heat dissipation tube frame 5 through the second pipe 7. The outlet of the first heat dissipation channel 411 is connected to the inlet of the second heat dissipation channel 421 through the third pipe 8. The outlet of the second heat dissipation channel 421 is connected to the inlet of the cooling water tank 31 through the fourth pipe 9. The outlet of the heat dissipation tube frame 5 is connected to the inlet of the cooling water tank 31 through the fifth pipe 10.

[0030] In this embodiment, the housing 1 is provided with a first chamber 11, a second chamber 12, and a third chamber 13 arranged sequentially from top to bottom. The inverter 4 is installed in the first chamber 11, the cooling mechanism 3 and the circulation pump 2 are installed in the second chamber 12, and the heat sink 5 is installed in the third chamber 13. The corresponding battery pack is also located on the heat sink 5 in the third chamber 13, so that the cooling mechanism 3, the inverter 4 and the battery pack are separated from each other. The cooling mechanism 3 is located between the two heat sources, the inverter 4 and the battery pack, which can avoid the accumulation of heat between the two heat sources, thereby improving the heat dissipation efficiency and ensuring the cooling effect.

[0031] In this embodiment, the heat dissipation tube frame 5 includes a horizontal water inlet pipe 51 and a horizontal water outlet pipe 52 arranged in a front-to-back manner, as well as a plurality of U-shaped heat dissipation tubes 53 arranged in a left-to-right manner. The top two ends of the U-shaped heat dissipation tubes 53 are respectively connected to the horizontal water inlet pipe 51 and the horizontal water outlet pipe 52. The battery is installed close to the space between two adjacent U-shaped heat dissipation tubes 53. This arrangement ensures that the battery, whether located at the edge or in the middle, can receive sufficient heat dissipation and cooling, ensuring more uniform heat dissipation of the battery pack and extending the service life of the battery pack.

[0032] In this embodiment, the horizontal water inlet pipe 51, the horizontal water outlet pipe 52, and the U-shaped heat dissipation pipe 53 are square tube structures with a rectangular cross-section, which allows the battery to be installed more tightly between two adjacent U-shaped heat dissipation pipes 53, increasing the contact area between the battery and the U-shaped heat dissipation pipe 53, and can fully and evenly remove the heat generated by the battery, thereby improving the heat dissipation and cooling effect of the battery pack.

[0033] The aforementioned liquid cooling mechanism operates only during periods of high temperature, such as summer. During these periods, both the inverter 4 and the battery pack generate significant heat, causing the battery pack temperature to exceed its normal operating range. Therefore, the cooling fan 32 needs to be activated to dissipate heat from the coolant in the cooling tank 31, allowing the coolant to carry away heat from both the inverter 4 and the battery pack. However, during periods of low temperature, such as winter, the battery pack temperature is below its normal operating range. In this case, the fan 32 can be turned off. The cooling tank 31 then primarily serves as a transfer and storage point for the coolant, allowing it to carry away heat from the inverter 4 and, upon warming up, flow into the heat sink 5 to transfer heat to the battery pack, raising its temperature to the normal operating range and ensuring the battery pack's operational stability.

[0034] In summary, the liquid cooling heat dissipation mechanism of this utility model can evenly regulate the temperature of the battery pack. It can dissipate heat and cool the battery pack in high-temperature environments to ensure that its temperature drops to the normal operating range. It can also appropriately transfer heat and raise the temperature of the battery pack in low-temperature environments to ensure that its temperature rises to the normal operating range. This improves the low operating efficiency of the battery pack in low-temperature environments, extends the service life of the battery pack, and at the same time reduces the temperature of the power devices of the inverter 4, extends the service life of the power devices, reduces heat dissipation energy consumption, and improves the operating efficiency of the inverter 4.

[0035] This utility model also provides a household energy storage device, including the liquid cooling heat dissipation mechanism described in the above embodiments. It can evenly regulate the temperature of the battery pack, dissipate heat and cool the battery pack in high-temperature environments to ensure that its temperature drops to the normal operating range, and can also appropriately transfer heat to raise the temperature of the battery pack in low-temperature environments to ensure that its temperature rises to the normal operating range. This improves the low working efficiency of the battery pack in low-temperature environments, extends the service life of the battery pack, and at the same time reduces the temperature of the power devices of the inverter 4, extends the service life of the power devices, reduces heat dissipation energy consumption, and improves the working efficiency of the inverter 4.

[0036] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A liquid cooling heat dissipation mechanism, characterized in that: The device includes a housing, within which a battery pack, an inverter, and a cooling assembly are installed. The cooling assembly includes a cooling mechanism, a circulating pump, and a heat sink. The cooling mechanism is filled with coolant. The battery pack includes multiple batteries, which are evenly mounted on the heat sink. The inverter has a heat dissipation channel. The outlet of the cooling mechanism is connected to the inlet of the circulating pump. The inlets of the heat dissipation channel and the heat sink are connected to the outlet of the circulating pump, respectively. The outlets of the heat dissipation channel and the heat sink are connected to the inlet of the cooling mechanism, respectively.

2. The liquid cooling heat sink mechanism according to claim 1, characterized by: The inverter includes an inverter board and power devices mounted on one side of the inverter board, as well as an inductor heat sink and an inductor mounted on one side of the inductor heat sink. A first heat dissipation channel is provided inside the inverter board, and a second heat dissipation channel is provided inside the inductor heat sink. The first heat dissipation channel and the second heat dissipation channel are interconnected to form the heat dissipation channel.

3. The liquid cooling heat sink mechanism according to claim 2, characterized by: The cooling system includes a cooling water tank and a fan located on one side of the cooling water tank. The coolant is located inside the cooling water tank, and the fan is used to blow cold air towards the cooling water tank to cool the coolant.

4. The liquid cooling heat sink of claim 3, wherein: The cooling assembly also includes first, second, third, fourth, and fifth pipes. The outlet of the cooling water tank is connected to the inlet of the circulating pump through the first pipe. The second pipe is a Y-shaped pipe. The outlet of the circulating pump is connected to the inlet of the first heat dissipation channel and the inlet of the heat dissipation tube frame through the second pipe. The outlet of the first heat dissipation channel is connected to the inlet of the second heat dissipation channel through the third pipe. The outlet of the second heat dissipation channel is connected to the inlet of the cooling water tank through the fourth pipe. The outlet of the heat dissipation tube frame is connected to the inlet of the cooling water tank through the fifth pipe.

5. The liquid cooling heat sink mechanism according to claim 3, characterized by: The surface of the cooling water tank has multiple fin structures.

6. The liquid cooling heat sink of claim 1, wherein: The housing is arranged in three chambers from top to bottom: a first chamber, a second chamber, and a third chamber. The inverter is installed in the first chamber, the cooling mechanism and the circulating pump are installed in the second chamber, and the heat dissipation tube rack is installed in the third chamber.

7. The liquid cooling heat sink of claim 1, wherein: The heat dissipation tube frame includes horizontal inlet pipes and horizontal outlet pipes arranged in a front-to-back manner, as well as multiple U-shaped heat dissipation tubes arranged in a left-to-right manner. The top two ends of the U-shaped heat dissipation tubes are connected to the horizontal inlet pipes and the horizontal outlet pipes, respectively. The battery is installed close to the space between two adjacent U-shaped heat dissipation tubes.

8. The liquid cooling heat sink mechanism of claim 7, wherein: The horizontal water inlet pipe, horizontal water outlet pipe, and U-shaped heat dissipation pipe are square tube structures with a rectangular cross-section.

9. A domestic energy storage device characterised in that: Includes the liquid cooling heat dissipation mechanism described in any one of claims 1-8.

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