Temperature reducing mechanism and battery pack

Abstract

The utility model discloses cooling mechanism and battery pack, cooling mechanism includes at least one row of cooling circulation pipeline, first power component, at least one row of first radiating component, second power component and second radiating component, at least one row of cooling circulation pipeline sets at least one row of first radiating component, and first radiating component and cooling circulation pipeline each other intercommunication, and cooling circulation pipeline is provided with first power component, and first radiating component top is provided with second power component, and second power component is configured as drive second radiating component rotation, and second radiating component is towards first radiating component, the utility model discloses beneficial effect: through cooling circulation pipeline and second radiating component, the battery pack is radiated in an all-round way, avoids appearing temperature excessively high, leads to the service life reduction of the body to be cooled, and eliminates the hidden danger of safety.

Description

Technical Field

[0001] This utility model relates to the field of battery cooling technology, and in particular to a cooling mechanism and a battery pack. Background Technology

[0002] New energy battery packs generally refer to battery packs used in electric vehicles, energy storage systems, and other new energy devices. These battery packs typically consist of multiple battery cells, such as lithium-ion battery cells, designed to provide efficient and long-lasting energy storage and release capabilities. The design and manufacture of new energy battery packs involve multiple technologies, including battery technology, battery management systems, thermal management, and structural design.

[0003] With the development of electric vehicles and energy storage systems, the use of batteries is gradually increasing, and the heat dissipation problem of battery packs is becoming increasingly prominent. Batteries generate heat during operation, and if heat dissipation is not timely, it may lead to excessively high battery temperature, reduce battery life, or even pose safety hazards.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is the problem of poor cooling of the battery pack.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] This utility model claims a cooling mechanism, including at least one row of cooling circulation pipes, a first power component and at least one column of first heat dissipation components, wherein at least one row of cooling circulation pipes is provided with at least one column of first heat dissipation components, the first heat dissipation components are connected to the cooling circulation pipes, and the cooling circulation pipes are provided with the first power component.

[0008] It also includes a second power component and a second heat dissipation component. The second power component is disposed above the first heat dissipation component and is configured to drive the second heat dissipation component to rotate. The second heat dissipation component faces the first heat dissipation component.

[0009] This utility model claims protection for the comprehensive heat dissipation of the cooling body through cooling circulation pipes and a second heat dissipation component, to avoid excessive temperature, which would reduce the service life of the cooling body and eliminate safety hazards.

[0010] Preferably, the cooling mechanism further includes a water tank, a first multi-port connector, a second multi-port connector, and at least one row of cooling pipes. The number of cooling pipes corresponds one-to-one with the number of outlets of the first multi-port connector and the number of inlets of the second multi-port connector. The outlet of the water tank is connected to the inlet of the first multi-port connector. The outlet of the first multi-port connector is connected to one end of the cooling pipe, and the other end of the cooling pipe is connected to the inlet of the second multi-port connector. The outlet of the second multi-port connector is connected to the inlet of the water tank.

[0011] The cooling pipe is attached to the long side of the body to be cooled. When the coolant in the cooling pipe flows, it carries away the heat of the body to be cooled.

[0012] Preferably, the cooling mechanism further includes an input pipe, with the outlet of the water storage tank connected to one end of the input pipe and the other end of the input pipe connected to the inlet of the first multi-way connector. The input pipe is equipped with a first power component. The water storage tank, the input pipe, the first multi-way connector, the cooling pipe, and the second multi-way connector are interconnected to form a cooling circulation pipeline.

[0013] The water storage tank, inlet pipe, first multi-port connector, cooling pipe and second multi-port connector are interconnected to form a cooling circulation pipeline. By turning on the first power component, the coolant circulates repeatedly in the cooling circulation pipeline, carrying away the heat of the body to be cooled.

[0014] Preferably, the first heat dissipation component is a heat dissipation fin, which is perpendicular to the axis of the cooling pipe.

[0015] The heat dissipation fins are in close contact with the wide edge of the body to be cooled. The heat dissipation fins themselves have heat dissipation capacity and are in close contact with the wide edge of the body to be cooled. With the flow of coolant inside the heat dissipation fins, the cooling pipes and heat dissipation fins are fully in contact with the body to be cooled, thereby cooling the body.

[0016] Preferably, a cooling element is installed inside the water storage tank.

[0017] To cool the coolant, it is preferable to install a cooling chip inside the water tank, preferably a semiconductor cooling chip.

[0018] Preferably, the second power assembly includes a power source, an extension shaft, a first gear, and a second gear. The power source is located above the heat dissipation fins, and the extension shaft is located at the output end of the power source. Both ends of the extension shaft extend along the length direction of the heat dissipation fins. Both ends of the heat dissipation fins are interchangeably connected to the input shaft of the second heat dissipation assembly. The input shaft of the second heat dissipation assembly is parallel to the extension shaft. The extension shaft is equipped with the first gear, which meshes with the second gear located on the input shaft of the second heat dissipation assembly.

[0019] The second power source is preferably a dual-head motor, which can provide power to the second heat dissipation components on both sides, enabling them to rotate and perform air cooling.

[0020] This utility model also claims to protect a battery pack, including a housing, battery bodies and a cooling mechanism, wherein a cooling circulation pipeline is partially disposed in the housing, a plurality of battery bodies are disposed in the housing cavity, at least one row of cooling circulation pipelines is attached between two adjacent rows of battery bodies, at least one row of first heat dissipation components is attached between two adjacent rows of battery bodies, and a first power component is disposed in the cooling circulation pipeline located in the housing.

[0021] In practical applications, a cooling mechanism is installed inside the battery pack to cool it down, preventing the battery pack from failing due to high temperatures and affecting its service life.

[0022] Preferably, the cooling mechanism further includes a water tank, a first multi-port connector, a second multi-port connector, and at least one row of cooling pipes. The number of cooling pipes corresponds one-to-one with the number of outlets of the first multi-port connector and the number of inlets of the second multi-port connector. The water tank is installed on the outer wall of the housing. The outlet of the water tank is connected to the inlet of the first multi-port connector. The outlet of the first multi-port connector is connected to one end of the cooling pipe. The cooling pipe passes through the housing and is arranged close to each other between two adjacent rows of battery bodies. The other end of the cooling pipe is connected to the inlet of the second multi-port connector, and the outlet of the second multi-port connector is connected to the inlet of the water tank.

[0023] The water tank, input pipe, first multi-port connector, cooling pipe and second multi-port connector are interconnected to form a cooling circulation pipeline. By turning on the first power component, the coolant circulates repeatedly in the cooling circulation pipeline, carrying away the heat from the surface of the battery body.

[0024] Preferably, heat dissipation fins are attached between adjacent rows of battery bodies.

[0025] The heat dissipation fins are attached to the wide edge of the battery body. The heat dissipation fins themselves have heat dissipation capabilities and are attached to the wide edge of the battery body. With the flow of coolant inside the heat dissipation fins, the cooling pipes and heat dissipation fins are fully attached to the battery body to cool the battery body.

[0026] Preferably, the housing includes a battery casing, a sealing cover, and a connecting assembly, wherein the battery casing is covered by the sealing cover and is fixed to each other by the connecting assembly.

[0027] The connecting components are not limited to bolts; they can also be made detachable from the battery casing and sealing cover by means of clips or other methods, which facilitates maintenance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the liquid cooling part of the cooling mechanism in Embodiment 1 of this utility model;

[0029] Figure 2 This is a schematic diagram of the air-cooled part of the cooling mechanism in Embodiment 1 of this utility model;

[0030] Figure 3This is a schematic diagram of the battery pack structure according to Embodiment 2 of this utility model;

[0031] Figure 4 This is a schematic diagram of the battery pack with the sealing cover removed according to Embodiment 2 of this utility model;

[0032] Figure 5 This is a schematic diagram of the sealing cap structure in Embodiment 2 of this utility model.

[0033] 1. Housing; 10. Battery casing; 11. Sealing cover; 12. Connecting components;

[0034] 2. Battery body;

[0035] 30. Water storage tank; 301. Cooling chip; 31. First tee connector; 33. Cooling pipe; 34. Inlet pipe; 35. Heat dissipation fins; 350. Spacer block; 36. Water pump;

[0036] 370. Dual-head motor; 371. Extended shaft; 372. First gear; 373. Second gear; 38. Fan;

[0037] 40. Temperature detector; 41. Temperature display screen. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] Example 1

[0040] See Figure 1 This embodiment requires protection of the cooling mechanism, which is used to cool the body to be cooled. The cooling mechanism includes two parts. The first part is liquid cooling, including a water tank 30, a first tee connector 31, a second tee connector, a cooling pipe 33, an input pipe 34, heat dissipation fins 35, and a water pump 36.

[0041] To ensure the temperature of the coolant, it is preferable to install a cooling plate 301 inside the water storage tank 30. The water storage tank 30 has an outlet and an inlet on both sides.

[0042] It is worth mentioning that both the first tee connector 31 and the second tee connector are tee connectors, also known as pipe tees or tee fittings, used to connect pipes to change the direction of fluid flow. This is existing technology and will not be described in detail here. The first tee connector 31 has two outlets, and the second tee connector has two inlets. The outlet of the water storage tank 30 is connected to one end of the input pipe 34, and the other end of the input pipe 34 is connected to the inlet of the first tee connector 31. The input pipe 34 is equipped with a water pump 36. The outlets of the first tee connector 31 are all connected to one end of the cooling pipe 33, and the other end of the cooling pipe 33 is connected to the inlet of the second tee connector. The outlet of the second tee connector is connected to the inlet of the water storage tank 30.

[0043] At this point, the water storage tank 30, the inlet pipe 34, the first tee connector 31, the cooling pipe, and the second tee connector are interconnected to form two rows of cooling circulation pipes. The water pump 36 is started, and the coolant flows repeatedly within the cooling circulation pipes. Heat is dissipated through frictional contact between the coolant and the surface of the body to be cooled along its length.

[0044] Each cooling pipe 33 is equipped with six rows of heat dissipation fins 35, which are connected to each other and are perpendicular to the axis of the cooling pipe 33.

[0045] The heat dissipation fins 35 have a heat dissipation effect. The heat dissipation fins 35 are connected to the cooling pipes. The heat dissipation fins 35 are in contact with the surface of the body to be cooled in the width direction. With the help of the water pump 36, the body to be cooled can be cooled in all directions.

[0046] In fact, since both the heat dissipation fins 35 and the cooling pipes need to be in close contact with the surface of the body to be cooled for cooling, the number of heat dissipation fins 35 and cooling pipes is determined by the number of bodies to be cooled. Therefore, the heat dissipation fins are not limited to six rows, and the cooling pipes are not limited to two rows. Correspondingly, the first tee connector 31 and the second tee connector connected to the cooling pipes can also be replaced with multi-connector connectors corresponding to the number of cooling pipes.

[0047] See Figure 2 The second part is air-cooled, including a dual-head motor 370, an extended shaft 371, a first gear 372, a second gear 373, and a fan 38. A pad 350 is placed on the upper surface of the heat sink 35, and the dual-head motor 370 is mounted on the pad. The extended shaft 371 is located at the output end of the dual-head motor 370. The extended shaft 371 refers to a specific machining of the motor output shaft to extend its length according to site requirements; this is existing technology and will not be described further. Both ends of the extended shaft 371 extend along the length of the heat sink 35. A fan 38 is located above both ends of the extended shaft 371. The input shaft of the fan 38 is parallel to the axis of the extended shaft 371. The first gear 372 is located on the extended shaft 371, and the second gear 373 is located on the input shaft of the fan 38. The second gear 373 meshes with the first gear 372.

[0048] When in use, start the dual-head motor 370 to rotate the extended shaft 371. The extended shaft 371 drives the first gear 372 and the second gear 373 to mesh, causing the fan 38 to rotate for air cooling.

[0049] Example 2

[0050] See Figure 3 This embodiment, based on Embodiment 1, requires protection of the battery pack. The battery pack internally is equipped with the cooling mechanism described in Embodiment 1 to cool the battery pack. Specifically, the battery pack includes a housing 1, a battery body 2, and the cooling mechanism, where the battery body 2 is the body to be cooled.

[0051] The housing 1 is preferably square in shape. The housing 1 includes a battery case 10, a sealing cover 11 and a connecting assembly 12. The battery case 10 is covered by the sealing cover 11 and they are fixed together by bolts. The connection method is not limited to bolts, but can also be achieved by snap-fit ​​or other means, so that the battery case 10 and the sealing cover 11 can be disassembled for easy maintenance.

[0052] See Figure 3 and Figure 4 The battery casing 10 houses the battery body 2, which is arranged in a linear array, for example, three rows and seven columns. Three rows and seven columns means that the battery body 2 consists of three rows, with seven batteries in each row, evenly distributed among them.

[0053] A water storage tank 30 is installed on the outer wall of the housing 1. One end of the water storage tank 30 outlet inlet pipe 34 is connected to the inlet of the first tee connector 31, and the other end of the inlet pipe 34 is connected to the inlet of the first tee connector 31. A water pump 36 is installed on the side wall of the water storage tank 30 by bolts. The outlet of the first tee connector 31 is connected to one end of a cooling pipe 33. The cooling pipe 33 is arranged between two adjacent rows of battery bodies 2. The other end of the cooling pipe 33 is connected to the inlet of a second tee connector, and the outlet of the second tee connector is connected to the inlet of the water storage tank 30. A first heat dissipation component is fitted between two adjacent rows of battery bodies to be cooled.

[0054] At this time, the cooling pipe 33 is set between two adjacent rows of battery bodies 2. The cooling pipe 33, water tank 30, input pipe 34, first tee connector 31, cooling pipe 33 and second tee connector are connected to each other to form a cooling circulation pipeline. In addition, the cooling circulation pipeline and the first heat dissipation component are in contact with the wide side of the battery body 2 to cool down at least two sides of the battery body. By starting the water pump 36, the coolant is circulated repeatedly to remove the heat from the surface of the battery body 2.

[0055] See Figure 5In this embodiment, the battery housing 10 is connected to the input shaft of the fan 38 via a jacking connection. Specifically, a jacking hole is provided on the inner wall of the battery housing 10, and the jacking hole is connected to the input shaft of the fan 38 via a jacking connection. The installation method of the input shaft of the above-mentioned heat dissipation component can refer to this jacking connection method, which is the prior art and will not be described in detail here.

[0056] In addition, in some embodiments, a temperature detection component can be set to monitor the temperature inside the box 1. Preferably, a temperature detector 40 and a temperature display screen 41 are set. The temperature detector 40 is set at the bottom of the sealing cover 11. The temperature detector 40 is mainly used to detect the temperature inside the box 1. Therefore, the setting position is not limited to the sealing cover 11. After the temperature detector 40 detects, it outputs a signal and transmits it to the temperature display screen 41. The temperature display screen 41 is arranged outside the box 1 for easy viewing by personnel. Preferably, it is arranged on the water storage tank 30. This is the prior art and will not be described in detail.

[0057] The rapid cooling process of the battery pack is as follows:

[0058] S1. Temperature detector 40 monitors the temperature inside the enclosure 1 when it is detected that the temperature is too high.

[0059] S2. Start the water pump 36. The coolant enters the inlet pipe 34 from the water tank 30. The coolant will pass through two rows of cooling pipes 33 to reach the six rows of heat dissipation fins 35, and then circulate back into the water tank 30. During the circulation process, the coolant in the two rows of cooling pipes 33 and the six rows of heat dissipation fins 35 carries away the heat from the surface of the battery body 2.

[0060] S3. In conjunction with starting the dual-head motor 370, the dual-head motor 370 drives the extended shaft 371 to rotate. By utilizing the meshing between the first gear 372 and the second gear 373, the fan 38 can be rotated, thereby cooling the battery pack.

[0061] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cooling mechanism, characterized in that, It includes at least one row of cooling circulation pipes, a first power component and at least one column of first heat dissipation components, wherein at least one row of cooling circulation pipes is provided with at least one column of first heat dissipation components, the first heat dissipation components are connected to the cooling circulation pipes, and the cooling circulation pipes are provided with the first power component; It also includes a second power component and a second heat dissipation component. The second power component is disposed on the upper surface of the first heat dissipation component. The second power component is configured to drive the second heat dissipation component to rotate, and the second heat dissipation component faces the first heat dissipation component.

2. The cooling mechanism according to claim 1, characterized in that, It also includes a water storage tank, a first multi-way connector, a second multi-way connector, and at least one row of cooling pipes. The number of cooling pipes corresponds one-to-one with the number of outlets of the first multi-way connector and the number of inlets of the second multi-way connector. The outlet of the water storage tank is connected to the inlet of the first multi-way connector. The outlet of the first multi-way connector is connected to one end of the cooling pipe, and the other end of the cooling pipe is connected to the inlet of the second multi-way connector. The outlet of the second multi-way connector is connected to the inlet of the water storage tank.

3. The cooling mechanism according to claim 2, characterized in that, It also includes an input pipe, with the outlet of the water storage tank connected to one end of the input pipe and the other end of the input pipe connected to the inlet of the first multi-way connector. The input pipe is equipped with a first power assembly. The water storage tank, the input pipe, the first multi-way connector, the cooling pipe, and the second multi-way connector are interconnected to form a cooling circulation pipeline.

4. The cooling mechanism according to claim 2, characterized in that, The first heat dissipation component is a heat dissipation fin, which is perpendicular to the axis of the cooling pipe.

5. The cooling mechanism according to claim 2, characterized in that, Cooling elements are installed inside the water storage tank.

6. The cooling mechanism according to claim 1, characterized in that, The second power assembly includes a power source, an extension shaft, a first gear, and a second gear. The power source is located above the heat dissipation fins, and the extension shaft is located at the output end of the power source. Both ends of the extension shaft extend along the length of the heat dissipation fins. A second heat dissipation assembly is located above both ends of the extension shaft. The input shaft of the second heat dissipation assembly is parallel to the axis of the extension shaft. The first gear is located on the extension shaft, and the first gear meshes with the second gear located on the input shaft of the second heat dissipation assembly.

7. A battery pack employing the cooling mechanism according to any one of claims 1 to 6, characterized in that, It includes a housing, battery bodies, and a cooling mechanism. The cooling circulation pipeline is located inside the housing. Several battery bodies are arranged inside the housing cavity. At least one row of cooling circulation pipelines is attached between two adjacent rows of battery bodies. At least one row of first heat dissipation components is attached between two adjacent rows of battery bodies. A first power component is arranged in the cooling circulation pipeline located in the housing.

8. The battery pack according to claim 7, characterized in that, A water storage tank is installed on the outer wall of the enclosure. The outlet of the water storage tank is connected to the inlet of the first multi-way connector. The outlet of the first multi-way connector is connected to one end of the cooling pipe. The cooling pipe runs through the enclosure and is arranged close to the two adjacent rows of battery bodies. The other end of the cooling pipe is connected to the inlet of the second multi-way connector. The outlet of the second multi-way connector is connected to the inlet of the water storage tank.

9. The battery pack according to claim 7, characterized in that, Heat dissipation fins are attached between adjacent rows of battery cells.

10. The battery pack according to claim 7, characterized in that, The enclosure includes a battery case, a sealing cover, and a connecting assembly. The battery case is covered by the sealing cover and is fixed together with the battery case by the connecting assembly.

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