An aircraft power supply thermal management device

Abstract

The utility model relates to battery heat dissipation technical field, and disclose a kind of aircraft power supply thermal management device, including battery box and the thermal management device in battery box, the thermal management device includes: battery cell, the battery cell is three-dimensional structure, shape is at least one of cylinder, polyhedron, as aircraft power source provides power;Cold plate module is provided with placement cavity in the cold plate module, the battery cell is located in placement cavity, the shape of placement cavity is determined according to the shape of battery cell, can be cylinder, also can be polyhedron, and is in conformity with battery cell;Water cooling assembly, the water cooling assembly is connected with cold plate module, to make the cold plate module form water flow passage, battery cell is cooled by cold plate module. With High heat dissipation efficiency, structural stability and other advantages, solve the problem of poor heat transfer effect of battery cell.

Description

Technical Field

[0001] This utility model relates to the field of battery cooling technology, specifically to an aircraft power thermal management device. Background Technology

[0002] Battery modules are a crucial component of electric aircraft. Currently, the thermal runaway direction of batteries is mostly uncontrollable or requires additional smoke duct structures. This is especially true in the field of electric aircraft, where thermal runaway control capabilities are paramount. During vertical takeoff, the motor power is high, causing the battery pack to discharge at a high rate. This intensifies the chemical reactions within the battery cells, converting a large amount of chemical energy into electrical energy, while simultaneously generating significant heat. Therefore, effective methods are needed to dissipate this heat from the battery pack into the external environment.

[0003] Chinese utility model patents, with publication number CN119381616A and application number CN202310934614.6, disclose a battery pack cooling system and an aircraft containing the same. The patent includes a battery box, a cover plate, coolant, and a battery pack. The cover plate is mounted on top of the battery box, and the battery box and cover plate together form a sealed space; the coolant is placed within the sealed space; the battery pack is placed inside the battery box, and the coolant is used to cool the battery pack. This design results in poor heat transfer between the battery cells and poses significant safety issues.

[0004] Therefore, we propose an aircraft power thermal management device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an aircraft power thermal management device with advantages such as high heat dissipation efficiency and stable structure, thus solving the problem of poor heat transfer effect of battery cells.

[0006] (II) Technical Solution To achieve the aforementioned goals of high heat dissipation efficiency and structural stability, this utility model provides the following technical solution: an aircraft power thermal management device, comprising a battery box and a thermal management device located within the battery box, wherein the thermal management device includes: The battery cell has a three-dimensional structure and its shape is at least one of a cylinder or a polyhedron, and it serves as a power source for the aircraft. A cold plate module, wherein a placement cavity is provided in the cold plate module, and the battery cell is located in the placement cavity. The shape of the placement cavity is determined according to the shape of the battery cell, and can be a cylinder or a polyhedron, and is in close contact with the battery cell. A water-cooling assembly is connected to a cold plate module so that the cold plate module forms a water flow path, thereby cooling the battery cell.

[0007] As a further explanation of this utility model: the cold plate module includes multiple arc-shaped cold plates, an upper manifold is provided at the top of the arc-shaped cold plate, and a lower manifold is provided at the bottom of the arc-shaped cold plate. A water flow path is formed between the upper manifold, the arc-shaped cold plate, and the lower manifold, and the coolant flows from the lower manifold through the arc-shaped cold plate to the upper manifold.

[0008] As a further explanation of this utility model: multiple concave and convex surfaces are formed on the arc-shaped cold plate, and the multiple concave and convex surfaces are arranged in an intersecting manner. The placement cavity is formed between the concave surface of one arc-shaped cold plate and the convex surface of another arc-shaped cold plate. This arrangement can fully enclose the battery cell and improve the cooling efficiency.

[0009] As a further explanation of this utility model: the water-cooling assembly includes an inlet water-cooling pipe and an outlet water-cooling pipe. Both the inlet and outlet water-cooling pipes are provided with multiple pressure plate interfaces. The pressure plate interface on the inlet water-cooling pipe is connected to the lower manifold, and the pressure plate interface on the outlet water-cooling pipe is connected to the upper manifold. A water flow path is formed between the inlet water-cooling pipe, the lower manifold, the arc-shaped cold plate, the upper manifold, and the outlet water-cooling pipe. With this arrangement, the coolant can stay in the cold plate module to the maximum extent, avoiding excessively fast water flow and incomplete heat absorption.

[0010] As a further explanation of this utility model: the thermal management device also includes end plates, which are disposed at both ends of the cold plate module and are used to fix the multiple arc-shaped cold plates to improve the stability of the cold plate module.

[0011] As a further explanation of this utility model: the inlet water cooling pipe and the outlet water cooling pipe are arranged on both sides of the cold plate module, forming a quadrilateral with the end plate to fix the arc-shaped cold plate, which facilitates the connection of the water cooling plate and the fixation of the cold plate module with the end plate.

[0012] As a further explanation of this utility model: the battery box includes a box cover and a box body, and a sealing gasket is provided between the box cover and the box body.

[0013] As a further explanation of this utility model: the box body is also provided with a water inlet and a water outlet, and the water inlet cooling pipe and the water outlet cooling pipe are connected to the outside through the water inlet and the water outlet.

[0014] As a further explanation of this utility model: the water-cooling component also includes a coolant, which includes at least one of condensate, ethanol, and methanol.

[0015] As a further explanation of this utility model: thermally conductive adhesive is also filled between the battery cell and the arc-shaped cold plate, which can not only prevent the cavity between the structures from causing heat exchange difficulties, but also improve the stability of the cold plate module.

[0016] (III) Beneficial Effects Compared with the prior art, this utility model provides an aircraft power thermal management device, which has the following beneficial effects: 1. This power thermal management device, by setting up an upper busbar, a lower busbar, an arc-shaped cold plate and a pressure plate interface, and the cold plate structure is a tortuous scheme, designed with the staggered arrangement of the battery cells, can achieve six arc-shaped cold plates closely attached to the surface of the battery cells in the case of multiple drainage cold plate arrangements, thereby maximizing the heat dissipation area of ​​the battery cell surface. 2. This power supply thermal management device, by designing the arc-shaped cold plate structure to fit the surface of the cylindrical battery cell, can achieve close contact with the battery cell and improve heat exchange efficiency; at the same time, the parallel arrangement of the cold plate modules reduces the system flow resistance; and the design of the arc-shaped cold plate structure with a support structure at the position prevents the arc-shaped cold plate from deforming. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the component structure of this utility model; Figure 2 This is a schematic diagram of the cold plate module structure of this utility model; Figure 3 This is a schematic diagram of the battery cell mounting structure of this utility model; Figure 4 This is a schematic diagram of the cross-section of the battery cell installed according to this utility model.

[0018] In the diagram: 1. Housing; 2. Housing cover; 3. End plate; 4. Battery cell; 5. Inlet water cooling pipe; 6. Outlet water cooling pipe; 7. Curved cold plate; 8. Upper busbar; 9. Lower busbar; 10. Pressure plate interface. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4A thermal management device for an aircraft power supply includes a battery box and a thermal management device located inside the battery box. The battery box includes a cover and a body, and a sealing gasket is provided between the cover and the body. The thermal management device includes: a battery cell 4, which has a three-dimensional structure and is at least cylindrical or polyhedral in shape, and provides power as a power source for the aircraft; a cold plate module, which has a placement cavity inside the cold plate module, and the battery cell 4 is located in the placement cavity. The shape of the placement cavity is determined according to the shape of the battery cell 4 and can be cylindrical or polyhedral, and is in close contact with the battery cell 4; and a water-cooling assembly, which is connected to the cold plate module to form a water flow path, through which the battery cell 4 is cooled. The water-cooling assembly also includes a coolant, which includes at least one of condensate, ethanol, and methanol.

[0021] The cold plate module includes multiple arc-shaped cold plates 7. An upper busbar 8 is positioned at the top of each arc-shaped cold plate 7, and a lower busbar 9 is positioned at the bottom. A water flow path is formed between the upper busbar 8, the arc-shaped cold plates 7, and the lower busbar 9, allowing coolant to flow from the lower busbar 9 through the arc-shaped cold plates 7 to the upper busbar 8. Multiple concave and convex surfaces are formed on each arc-shaped cold plate 7, arranged in an alternating pattern. A cavity is formed between the concave surface of one arc-shaped cold plate 7 and the convex surface of another. This arrangement allows for complete enclosure of the battery cell 4, improving cooling efficiency. Thermally conductive adhesive is also filled between the battery cell 4 and the arc-shaped cold plate 7, preventing cavities that could hinder heat exchange and improving the stability of the cold plate module.

[0022] The water-cooling assembly includes an inlet water-cooling pipe 5 and an outlet water-cooling pipe 6. Both the inlet water-cooling pipe 5 and the outlet water-cooling pipe 6 are equipped with multiple pressure plate interfaces 10. The pressure plate interface 10 on the inlet water-cooling pipe 5 is connected to the lower manifold 9, and the pressure plate interface 10 on the outlet water-cooling pipe 6 is connected to the upper manifold 8. A water flow path is formed between the inlet water-cooling pipe 5, the lower manifold 9, the arc-shaped cold plate 7, the upper manifold 8, and the outlet water-cooling pipe 6. This arrangement allows the coolant to remain in the cold plate module to the maximum extent, avoiding excessive water flow and incomplete heat absorption. The housing 1 is also provided with a water inlet and a water outlet, through which the inlet water-cooling pipe 5 and the outlet water-cooling pipe 6 are connected to the outside.

[0023] The thermal management device also includes end plates 3, which are set at both ends of the cold plate module to fix multiple arc-shaped cold plates 7 and improve the stability of the cold plate module. The inlet cooling pipe 5 and outlet cooling pipe 6 are set on both sides of the cold plate module and form a quadrilateral with the end plates 3 to fix the arc-shaped cold plates 7, which facilitates the connection of the arc-shaped cold plates 7 and also works with the end plates 3 to fix the cold plate module.

[0024] Working principle: The arc-shaped cold plate 7 adopts a parallel arrangement scheme. The coolant flows from the water inlet of the housing 1 to the water inlet pipe 5, and then flows to each lower manifold 9. After that, the coolant flows through the lower manifold 9 to the internal flow channel of the arc-shaped cold plate 7. After the coolant exchanges heat with the battery cell 7, it gathers on the upper manifold 8, and finally gathers to the water outlet pipe 6 and is discharged from the housing 1 through the coolant outlet.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aircraft electrical power thermal management device comprising a battery box and a thermal management device located within the battery box, characterized in that, The thermal management device includes: The battery cell (4) has a three-dimensional structure and its shape is at least one of a cylinder or a polyhedron. A cold plate module is provided with a placement cavity, and the battery cell (4) is located in the placement cavity. The shape of the placement cavity is determined according to the shape of the battery cell (4). A water-cooling assembly is connected to a cold plate module to form a water flow path in the cold plate module.

2. An aircraft electrical power thermal management device according to claim 1, wherein: The cold plate module includes multiple arc-shaped cold plates (7), with an upper manifold (8) at the top of the arc-shaped cold plate (7) and a lower manifold (9) at the bottom of the arc-shaped cold plate (7). A water flow path is formed between the upper manifold (8), the arc-shaped cold plate (7), and the lower manifold (9).

3. An aircraft electrical power thermal management device according to claim 2, wherein: Multiple concave and convex surfaces are formed on the arc-shaped cold plate (7), and the multiple concave and convex surfaces are arranged in an intersecting manner. The placement cavity is formed between the concave surface of one arc-shaped cold plate (7) and the convex surface of another arc-shaped cold plate (7).

4. The aircraft power thermal management device according to claim 2, characterized in that: The water-cooling assembly includes an inlet water-cooling pipe (5) and an outlet water-cooling pipe (6). Both the inlet water-cooling pipe (5) and the outlet water-cooling pipe (6) are provided with multiple pressure plate interfaces (10). The pressure plate interface (10) provided on the inlet water-cooling pipe (5) is connected to the lower manifold (9), and the pressure plate interface (10) provided on the outlet water-cooling pipe (6) is connected to the upper manifold (8). A water flow path is formed between the inlet water-cooling pipe (5), the lower manifold (9), the arc-shaped cold plate (7), the upper manifold (8), and the outlet water-cooling pipe (6).

5. An aircraft electrical power thermal management device according to claim 4, wherein: The thermal management device also includes end plates (3), which are disposed at both ends of the cold plate module and are used to fix the multiple arc-shaped cold plates (7).

6. An aircraft electrical power thermal management device according to claim 5, wherein: The inlet cooling pipe (5) and outlet cooling pipe (6) are located on both sides of the cold plate module, forming a quadrilateral with the end plate (3) to fix the arc-shaped cold plate (7).

7. The aircraft electrical power thermal management device of claim 1, wherein: The battery box includes a cover (2) and a body (1), and a sealing gasket is provided between the cover (2) and the body (1).

8. An aircraft electrical power thermal management device according to claim 7, wherein: The housing (1) is also provided with an inlet and an outlet, and the inlet cooling pipe (5) and outlet cooling pipe (6) are connected to the outside through the inlet and outlet.

9. The aircraft electrical power thermal management device of claim 1, wherein: The water-cooling assembly also includes a coolant, which includes at least one of condensate, ethanol, and methanol.

10. The aircraft electrical power thermal management device of claim 1, wherein: Thermally conductive adhesive is also filled between the battery cell (4) and the arc-shaped cold plate (7).

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