Natural air cooling integrated heating battery heat management unit

Abstract

The utility model discloses a natural air cooling integrated heating battery heat management unit which comprises a shell, a fan and a heat dissipation core body are arranged in the shell, the heat dissipation core body is arranged on one side in the shell, and the fan covers the surface of the heat dissipation core body; a water pump and a water heating heater are further arranged in the shell, one side of the heat dissipation core is connected with the water pump and the water heating heater, the water pump is further connected with a liquid inlet, and the water heating heater is connected with a water outlet pipe. High-temperature liquid enters the water pump through the liquid inlet and is conveyed into the heat dissipation core body through the water pump, after the high-temperature liquid is cooled through the draught fan and the heat dissipation core body, heat is discharged through the draught fan, and the cooled liquid passes through the heat dissipation core body and the water heating heater and is discharged through the water outlet pipe. Natural air is used for cooling liquid for heat exchange or a water heating heater is used for heating the liquid, and heat exchange with the battery pack is carried out through a pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of battery thermal management technology, specifically relating to a natural air-cooled integrated heating battery thermal management unit. Background Technology

[0002] With the continuous development and increasing number of new energy vehicles, batteries from earlier years are experiencing varying degrees of lifespan degradation. Temperature is a crucial parameter affecting battery performance. Batteries generate a significant amount of heat during operation, primarily from internal chemical reactions, including reaction heat, polarization heat, and ohmic heat. If this heat is not dissipated effectively and promptly, the battery temperature will rise, consequently impacting its performance, lifespan, and safety.

[0003] The main reasons for battery life degradation include: Overheating: High operating temperatures of lithium batteries significantly impact charge / discharge capacity and battery life, potentially leading to safety hazards; Underheating: Low temperatures reduce battery capacity and lifespan. Below 0 degrees Celsius, charging can cause internal lithium plating, puncturing the internal separator and causing an internal short circuit; Inconsistent cell temperatures: Uneven cell temperatures result in heat accumulation, causing temperature inconsistencies, affecting uniformity, reducing charge / discharge cycle efficiency, and even leading to thermal runaway in individual cells.

[0004] Battery thermal management involves cooling and heating the battery, as well as controlling temperature differences within the battery pack, to maintain the battery's operating temperature within a suitable range. This is crucial for ensuring battery performance, reliability, and safety. Summary of the Invention

[0005] To address the problems in related technologies, this utility model proposes a natural air-cooled integrated heating battery thermal management unit. By installing a fan, a heat dissipation core, and a water heater inside the casing, the unit utilizes natural air to cool the liquid for heat exchange or uses a water heater to heat the liquid, and exchanges heat with the battery pack through pipelines.

[0006] This utility model is implemented as follows:

[0007] A naturally cooled integrated heating battery thermal management unit includes a housing, within which a fan and a heat dissipation core are housed.

[0008] The heat dissipation core is located on one side inside the housing, and the fan covers the surface of the heat dissipation core. The housing is also equipped with a water pump and a water heater. One side of the heat dissipation core is connected to the water pump and the water heater respectively. The water pump is also connected to an inlet, and the water heater is connected to an outlet pipe.

[0009] Liquid enters the water pump through the inlet, the water heater does not work, and the water pump transports the liquid to the heat dissipation core. After the liquid is cooled by the fan and the heat dissipation core, the heat is discharged by the fan. The cooled liquid passes through the heat dissipation core and the water heater and is discharged through the outlet pipe.

[0010] Alternatively, the liquid enters the water pump through the inlet, the fan does not work, the liquid is transported by the water pump, enters the water heater through the heat dissipation core, the water heater heats the liquid and then discharges it through the outlet pipe.

[0011] Specifically, filtering impurities in liquids can prevent wear and corrosion of equipment, extend its service life, and reduce maintenance costs.

[0012] Preferably, a fixing plate is provided between the filter and the water pump, and the filter is fixed to the water pump by the fixing plate.

[0013] Specifically, the fixing plate is mainly used to fix the filter and prevent leakage between the filter and the water pump; in addition, it improves the stability of the liquid transmission process.

[0014] Preferably, the housing includes a motherboard and a top cover. The motherboard has a cuboid structure with an opening on one side, and the top cover covers the opening end of the motherboard and is engaged with the motherboard.

[0015] Specifically, the motherboard is the outer shell structure of the entire device, used to house the main body of the device, while the top cover is mainly used to cooperate with the fan for air intake and exhaust, so as to make full use of natural wind for cooling.

[0016] Preferably, the fan is located on the side close to the top cover, and the top cover has an air outlet at a position corresponding to the fan; the motherboard has an air inlet at a corresponding position around the side where the heat sink core is located.

[0017] Specifically, the fan faces the air outlet of the top cover, and the external natural air enters through the side air inlet. Guided by the fan, it passes through the heat dissipation core and then through the fan, finally flowing out from the air outlet.

[0018] Preferably, the motherboard has a heat sink base, the heat sink core is fixed on the heat sink base, and the air outlet is located on the motherboard surrounding the heat sink base.

[0019] Specifically, the heat sink occupies about half of the motherboard's interior space. Fixing the heat sink to the motherboard facilitates natural air circulation inside.

[0020] Preferably, the fan includes at least two fans, and the air outlet is adapted to the shape of the fans.

[0021] Specifically, the shape and size of the fan's edge and the air outlet are adapted to each other, so that the high-temperature liquid inside the heat sink is cooled by natural wind and then the heat is discharged from the air outlet through the fan.

[0022] Preferably, the main board is provided with a control panel on the side near the water pump and water heater, and the liquid inlet and water outlet pipes pass through the main board surface on the side where the control panel is located, communicating with the outside.

[0023] Specifically, the control panel is mainly used to control the entire device, and it is equipped with buttons and indicator lights.

[0024] Preferably, an electrical box is provided between the water heater and the side wall of the main board, and the electrical box is electrically connected to the control panel.

[0025] Specifically, the electrical connection between the electrical box and the control panel allows for the control and monitoring of the equipment's operation.

[0026] Preferably, the heat dissipation core comprises an inlet pipe, an outlet pipe, a delivery pipe, and a plurality of heat dissipation fins; the water pump and the water heater are located on the same side of the heat dissipation core, the water pump is connected to the inlet pipe, the water heater is connected to the outlet pipe, and the fan covers the heat dissipation fins.

[0027] Specifically, after the liquid enters the heat dissipation core, it flows in the delivery pipe and is cooled by the heat dissipation fins and natural air, and is discharged through the air outlet. When the temperature is high, the liquid is cooled by natural air for heat exchange, or when the temperature is low, the fan is turned off and only the water heater is used to heat the liquid. Heat exchange is carried out with the battery pack through the pipeline in different ways.

[0028] Compared with the prior art, the present invention achieves the following beneficial effects:

[0029] This utility model provides a natural air-cooled integrated heating battery thermal management unit, including a housing, inside which are a water pump, a heat dissipation core, a water heater, and a fan. High-temperature liquid enters the heat dissipation core. In hot summer weather, the liquid is cooled by natural air, or in cold winter weather, the liquid is heated by the water heater. Finally, the liquid exchanges heat with the battery pack through pipelines. The equipment adopts an independent integrated unit with a compact and efficient overall structure, dedicated to the thermal management of the battery pack. It utilizes natural air and a water heater, making it economical, practical, and low-cost. The equipment operates at low voltage (12V), with low power consumption and high efficiency, which can save energy and reduce noise while extending the service life of components. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a naturally air-cooled integrated heating battery thermal management unit according to an embodiment of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of a naturally air-cooled integrated heating battery thermal management unit according to an embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the heat dissipation core structure of a naturally air-cooled integrated heating battery thermal management unit according to an embodiment of this utility model;

[0033] Figure 4 This is a schematic diagram of the mainboard structure of a naturally air-cooled integrated heating battery thermal management unit according to an embodiment of this utility model;

[0034] Figure 5 This is one of the schematic diagrams of a naturally air-cooled integrated heating battery thermal management unit in this utility model embodiment;

[0035] Figure 6 This is the second schematic diagram of a natural air-cooled integrated heating battery thermal management unit in an embodiment of this utility model.

[0036] Figure label:

[0037] 1. Housing; 11. Mainboard; 12. Air inlet; 13. Top cover; 14. Air outlet; 2. Liquid inlet; 3. Filter; 31. Mounting plate; 4. Water pump; 5. Heat sink core; 51. Liquid inlet pipe; 52. Delivery pipe; 53. Liquid outlet pipe; 54. Heat sink fins; 55. Heat sink base; 6. Fan; 7. Water heater; 8. Water outlet pipe; 9. Electrical box; 91. Control panel. Detailed Implementation

[0038] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0039] Example

[0040] like Figures 1 to 6 A naturally cooled integrated heating battery thermal management unit includes a housing 1, within which a fan 6 and a heat dissipation core 5 are installed.

[0041] The heat dissipation core 5 is disposed on one side inside the housing 1, and the fan 6 covers the surface of the heat dissipation core 5; the housing 1 is also provided with a water pump 4 and a water heater 7, one side of the heat dissipation core 5 is connected to the water pump 4 and the water heater 7 respectively, the water pump 4 is also connected to an inlet 2, and the water heater 7 is connected to an outlet pipe 8.

[0042] Liquid enters water pump 4 through inlet 2. Water heater does not work. Liquid is transported to heat dissipation core 5 through water pump 4. After the liquid is cooled by fan 6 and heat dissipation core 5, the heat is discharged by fan 6. The cooled liquid passes through heat dissipation core 5 and water heater 7 and is discharged through outlet pipe.

[0043] Alternatively, the liquid enters the water pump 4 through the inlet 2, the fan 6 does not work, the liquid is transported by the water pump 4, enters the water heater 7 through the heat dissipation core 5, the water heater 7 heats the liquid and then discharges it through the outlet pipe 8.

[0044] The housing 1 includes a main board 11 and a top cover 13. The main board 11 has a cuboid structure with an opening on one side, and the top cover 13 covers the opening end of the main board 11 and is connected to the main board 11.

[0045] The motherboard 11 is the outer shell structure of the entire device, used to house the main body of the device. The top cover 13 is mainly used to cooperate with the fan 6 for air intake and exhaust, so as to make full use of natural wind for cooling.

[0046] A filter 3 is provided between the liquid inlet 2 and the water pump 4.

[0047] Filtering impurities in the liquid using filter 3 can prevent wear and corrosion of the equipment, extend its service life, and reduce maintenance costs.

[0048] A fixing plate 31 is provided between the filter 3 and the water pump 4, and the filter 3 is fixed to the water pump 4 by the fixing plate 31.

[0049] The fixing plate 31 is mainly used to fix the filter 3 and prevent leakage between the filter 3 and the water pump 4; in addition, it improves the stability of the liquid transmission process.

[0050] The fan 6 is located on the side close to the top cover 13, and the top cover 13 is provided with an air outlet 14 at the position corresponding to the fan 6; the motherboard 11 is provided with an air inlet 12 at the corresponding position around the side where the heat dissipation core 5 is located.

[0051] The fan 6 faces the air outlet 14 of the upper cover 13. The external natural air enters through the side air inlet 12, is guided by the fan 6, passes through the heat dissipation core 5 and then through the fan 6, and finally flows out from the air outlet 14.

[0052] The motherboard 11 is provided with a heat sink base 55, the heat sink core 5 is fixed on the heat sink base 55, and the air outlet 14 is located on the motherboard 11 surrounding the heat sink base 55.

[0053] The heat sink 5 occupies about half of the interior of the motherboard 11. Fixing the heat sink 5 to the heat sink motherboard 11 facilitates the formation of natural air circulation inside.

[0054] The fan 6 includes at least two fans, and the air outlet 14 is adapted to the shape of the fans.

[0055] The edge of the fan is adapted to the shape and size of the air outlet 14, so that the high-temperature liquid in the heat dissipation core 5 is cooled by natural wind and then the heat is discharged from the air outlet 14 by the fan.

[0056] The main board 11 is equipped with a control panel 91 on the side near the water pump 4 and the water heater 7. The liquid inlet 2 and the water outlet 8 pass through the main board 11 on the side where the control panel 91 is located and are connected to the outside.

[0057] The control panel 91 is mainly used to control the entire device, and it is also equipped with buttons and indicator lights.

[0058] An electrical box 9 is provided between the water heater 7 and the side wall of the main board 11, and the electrical box 9 is electrically connected to the control panel 91.

[0059] The electrical box 9 and the control panel 91 are electrically connected, allowing the equipment's operation to be controlled and monitored.

[0060] The control panel 91 can also control the switching on and off of the fan 6 and the water heater 7 respectively. When the liquid is cooled by the natural wind of the fan 6 and the heat dissipation core 5, the water heater 7 is turned off, and the liquid only flows through the water heater 7 without being heated.

[0061] When heating the liquid using the water heater 7, the fan 6 is turned off, and the liquid only flows through the heat dissipation core 5 without cooling the liquid;

[0062] Heat exchange between the pipeline and the battery pack is achieved by controlling the fan 6 and the water heater 7 respectively.

[0063] The heat dissipation core 5 comprises an inlet pipe 51, an outlet pipe 53, a delivery pipe 52, and several heat dissipation fins 54; the water pump 4 and the water heater 7 are located on the same side of the heat dissipation core 5, the water pump 4 is connected to the inlet pipe 51, the water heater 7 is connected to the outlet pipe 53, and the fan 6 covers the heat dissipation fins 54.

[0064] After the liquid enters the heat dissipation core 5, it flows in the delivery pipe 52 and is cooled by the heat dissipation fins 54 and natural wind, and is discharged through the air outlet 14; the liquid is cooled by natural wind or heated by water heater 7, and heat is exchanged with the battery pack through the pipeline.

[0065] This utility model provides a natural air-cooled integrated heating battery thermal management unit. High-temperature liquid enters the filter 3 through the inlet 2, is filtered by the filter 3, and then flows to the water pump 4. The water pump 4 then pumps the liquid into the heat dissipation core 5 through the inlet pipe 51. A fan 6 introduces natural air through the air inlet 12, and the air flows out through the air outlet 14. The heat exchange occurs between the heat dissipation core 5 and the natural air cooling the liquid, and the heat is dissipated by the fan 6. A water heater 7 heats the liquid, exchanging heat with the battery pack through pipes. Finally, the liquid flows out through the outlet pipe 8. The operation of the equipment is controlled and monitored via the control panel 91 and the electrical box 9. This independent, integrated unit has a compact and efficient overall structure, is economical and practical, and has low cost. It saves energy, reduces noise, and extends the service life of its components.

[0066] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A natural cooling integrated heating battery thermal management unit, comprising a shell, a fan and a heat dissipation core body are arranged in the shell, characterized in that, the heat dissipation core body is arranged on one side of the shell, and the fan covers the surface of the heat dissipation core body; a water pump and a water heating heater are further arranged in the shell, one side of the heat dissipation core body is connected with the water pump and the water heating heater respectively, the water pump is further connected with a liquid inlet, and the water heating heater is connected with a water outlet pipe; liquid enters the water pump through the liquid inlet, the water heating heater does not work, and the liquid is delivered into the heat dissipation core body through the water pump, the liquid is cooled by the fan and the heat dissipation core body, the heat is discharged by the fan, and the cooled liquid is discharged through the water heating heater and the water outlet pipe; or, liquid enters the water pump through the liquid inlet, the fan does not work, the liquid is delivered through the water pump, enters the water heating heater through the heat dissipation core body, and is discharged through the water outlet pipe after being heated by the water heating heater.

2. The natural convection integrated heating battery thermal management unit of claim 1, wherein, A filter is arranged between the liquid inlet and the water pump.

3. The natural convection integrated heating battery thermal management unit of claim 2, wherein, A fixing plate is arranged between the filter and the water pump, and the filter is fixed on the water pump by the fixing plate.

4. The natural convection integrated heating battery thermal management unit of claim 1, wherein, The shell comprises a main plate and an upper cover, one side of the main plate has an open rectangular structure, and the upper cover covers the open end of the main plate and cooperates with the main plate.

5. The natural convection integrated heating battery thermal management unit of claim 4, wherein, The fan is located on the side close to the upper cover, and the upper cover is provided with an air outlet at the position corresponding to the fan; the main plate is provided with an air inlet at the position corresponding to the side where the heat dissipation core body is located.

6. The natural convection integrated heating battery thermal management unit of claim 5, wherein, A heat dissipation base is arranged in the main plate, the heat dissipation core body is fixed on the heat dissipation base, and the air outlet is located on the main plate surrounding the side of the heat dissipation base.

7. The natural convection integrated heating battery thermal management unit of claim 5, wherein, The fan comprises at least two fans, and the shape of the air outlet is adapted to the shape of the fan.

8. A natural convection integrated heating battery thermal management unit according to claim 4, wherein, The main plate is provided with a control panel on the side close to the water pump and the water heating heater, and the liquid inlet and the water outlet pipe respectively pass through the main plate on the side where the control panel is located and are connected with the outside.

9. The natural convection integrated heating battery thermal management unit of claim 8, wherein, An electrical box is arranged between the water heating heater and the side wall of the main plate, and the electrical box is electrically connected with the control panel.

10. The natural convection integrated heating battery thermal management unit of claim 1, wherein, The heat dissipation core body comprises an inlet pipe, an outlet pipe, a delivery pipe and a plurality of heat dissipation fins; the water pump and the water heating heater are arranged on the same side of the heat dissipation core body, the water pump is connected with the inlet pipe, the water heating heater is connected with the outlet pipe, and the fan covers the heat dissipation fins.

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