Battery and aircraft
By designing the guide section in the box through hole of the aircraft battery pack, the fluid rate is increased, and the problem of low air-cooling heat dissipation efficiency in the prior art is solved, thereby achieving more efficient battery heat dissipation.
Patent Information
- Application Number
- CN202420254355.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The air-cooled heat dissipation structure of the existing aircraft battery pack has a lower air intake rate, resulting in a lower heat dissipation efficiency.
A battery is designed, including a box and a heat exchange plate. A through hole is provided between the inner wall and the outer wall of the box. The through hole includes a guide section. The opening size of the guide section gradually increases from the second end to the first end, thereby increasing the rate of fluid entering the heat exchange channel.
By increasing the rate of fluid entering the heat exchange channel, the heat dissipation efficiency of the battery cell is significantly improved and the service life of the battery is extended.
Smart Images
Figure CN222690743U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of battery technology, and in particular to a battery and an aircraft. Background Art
[0002] The battery pack in the aircraft can provide electrical energy for the aircraft. During the flight of the aircraft, the wind formed by the air can be used to dissipate heat from the battery pack. In the related art, the air-cooled heat dissipation structure is attached to the battery cell. The wind passes through the air-cooled heat dissipation structure in the aircraft and can take away the heat generated by the battery cell. However, the air intake rate of the air-cooled heat dissipation structure in the related art is low, resulting in low heat dissipation efficiency. Utility Model Content
[0003] In order to solve the above technical problems, an embodiment of the present application provides a battery and an aircraft, which can increase the rate at which fluid enters the heat exchange plate, thereby improving the heat dissipation efficiency.
[0004] In a first aspect, a battery is provided, comprising:
[0005] A box body, the box body comprising an inner wall, an outer wall and a through hole, the through hole passing through the inner wall and the outer wall, the through hole comprising a guide section, the guide section comprising a first end and a second end arranged opposite to each other, the first end passing through the outer wall, the second end being located between the inner wall and the outer wall, or the second end passing through the inner wall; wherein the opening size of the guide section gradually increases in a direction from the second end to the first end;
[0006] The heat exchange plate is located in the box body, the end of the heat exchange plate is clamped in the through hole, the heat exchange plate is provided with a heat exchange channel, the heat exchange channel is connected with the through hole, and the heat exchange plate is used to fit multiple battery cells in the box body.
[0007] According to the first aspect of the present application, the through hole also includes a connecting section, one end of which passes through the inner wall, and the other end of which is located between the inner wall and the outer wall and connected to the second end; wherein the heat exchange plate is disposed in the connecting section.
[0008] According to the first aspect of the present application, the box body includes a first side wall and a second side wall that are oppositely arranged, and the first side wall and the second side wall each include the inner wall, the outer wall and the through hole;
[0009] Wherein, the heat exchange plate is arranged between the first side wall and the second side wall, and two ends of the heat exchange channel are respectively connected to the through hole of the first side wall and the through hole of the second side wall.
[0010] According to the first aspect of the present application, there are multiple heat exchange channels, the multiple heat exchange channels are stacked and distributed, and the multiple heat exchange channels are all connected to the through hole.
[0011] According to the first aspect of the present application, the heat exchange plate is provided with a plurality of bent portions, and the plurality of bent portions are sequentially connected along the length direction of the heat exchange plate to form a wavy structure, and different bent portions are used to cooperate with different battery cells.
[0012] According to the first aspect of the present application, a thermally conductive adhesive layer is attached to the surface of the bent portion, and the thermally conductive adhesive layer is used to adhere to the battery cell.
[0013] According to the first aspect of the present application, the battery further comprises:
[0014] The bracket is located in the box body, and the side wall of the bracket is provided with a limiting groove, and the heat exchange plate is clamped with the limiting groove.
[0015] According to the first aspect of the present application, a plurality of slots are provided on the bottom wall of the bracket, and different slots are used to hold different battery cells.
[0016] According to the first aspect of the present application, there are multiple heat exchange plates, and the multiple heat exchange plates are distributed side by side and at intervals.
[0017] In a second aspect, an aircraft is also provided, comprising:
[0018] A battery as described in the previous embodiment.
[0019] The battery and aircraft provided in the embodiments of the present application include a box body and a heat exchange plate, the box body includes an inner wall, an outer wall and a through hole, the through hole passes through the inner wall and the outer wall, the through hole includes a guide section, the guide section includes a first end and a second end arranged opposite to each other, the first end passes through the outer wall, the second end is located between the inner wall and the outer wall, or the second end passes through the inner wall; the heat exchange plate is located in the box body, the end of the heat exchange plate is clamped in the through hole, the heat exchange plate is provided with a heat exchange channel, the heat exchange channel is connected to the through hole, and the heat exchange plate is used to fit multiple battery cells in the box body; because the opening size of the guide section gradually increases in the direction from the second end to the first end, therefore, the first end can guide more fluid into the guide section per unit time, thereby increasing the rate at which the fluid enters the heat exchange channel, and effectively improving the heat dissipation efficiency of the fluid to the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.
[0021] Figure 1 A schematic diagram of the structure of a battery provided as an exemplary embodiment of the present application.
[0022] Figure 2 A partial cross-sectional view of a box provided by an exemplary embodiment of the present application.
[0023] Figure 3 A schematic structural diagram of a heat exchange plate provided as an exemplary embodiment of the present application.
[0024] Figure 4 A schematic structural diagram of a bracket, a heat exchange plate and a battery cell provided in an exemplary embodiment of the present application.
[0025] Figure 5 A schematic structural diagram of a bracket provided for an exemplary embodiment of the present application.
[0026] Figure numerals: 100-battery; 110-housing; 111-inner wall; 112-outer wall; 113-through hole; 1131-guide section; 11311-first end; 11312-second end; 1132-connecting section; 114-first side wall; 115-second side wall; 120-heat exchange plate; 121-heat exchange channel; 122-bending portion; 130-bracket; 131-limiting groove; 132-card slot; 200-battery cell. DETAILED DESCRIPTION
[0027] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described here.
[0028] Figure 1 A schematic diagram of the structure of a battery provided as an exemplary embodiment of the present application. Figure 2 A partial cross-sectional view of a box provided by an exemplary embodiment of the present application. Figure 1 and Figure 2As shown, the battery 100 provided in the embodiment of the present application may include a box body 110 and a heat exchange plate 120. The interior of the box body 110 may be used to load a plurality of battery cells 200. The heat exchange plate 120 is disposed in the box body 110. The heat exchange plate 120 is provided with a heat exchange channel 121. The heat exchange plate 120 may be used to fit the plurality of battery cells 200 in the box body 110. In practical applications, a cooling fluid (which may include liquid, gas, etc.) flows into the heat exchange channel 121. The cooling fluid may achieve heat exchange with the battery cell 200 through the heat exchange plate 120. In this way, the heat generated by the battery cell 200 during operation may be taken away, and the heat dissipation effect may be played on the battery cell 200, thereby reducing the temperature of the battery cell 200.
[0029] Specifically, Figure 1 and Figure 2 As shown, the box body 110 may include an inner wall 111, an outer wall 112 and a through hole 113, the through hole 113 penetrates the inner wall 111 and the outer wall 112, the end of the heat exchange plate 120 is clamped in the through hole 113, and the heat exchange channel 121 is connected to the through hole 113. In actual application, the cooling fluid can flow from the outside into the heat exchange channel 121 through the through hole 113, and then achieve heat exchange with the battery cell 200 through the heat exchange plate 120.
[0030] Furthermore, if Figure 1 and Figure 2 As shown, the through hole 113 may include a guide section 1131, and the guide section 1131 includes a first end 11311 and a second end 11312 that are oppositely arranged, the first end 11311 passes through the outer wall 112, and the second end 11312 is located between the inner wall 111 and the outer wall 112. It should be understood that the external fluid can enter the guide section 1131 from the first end 11311, then flow out of the guide section 1131 through the second end 11312, and then flow into another section of the through hole 113 other than the guide section 1131 (hereinafter referred to as the connecting section 1132), and then enter the heat exchange channel 121.
[0031] It should be noted that in the direction from the second end 11312 to the first end 11311 ( Figure 2 In the direction indicated by the arrow A in the middle, the opening size of the guide section 1131 gradually increases, so that the first end 11311 can guide more fluid into the guide section 1131 per unit time, thereby increasing the rate at which the fluid enters the heat exchange channel 121, and effectively improving the heat dissipation efficiency of the fluid to the battery cell 200.
[0032] In one embodiment, the guide section 1131 is in a bell-mouth shape, and the opening size of the guide section 1131 can be understood as the inner diameter size of the guide section 1131 .
[0033] In one embodiment, the second end 11312 may also penetrate the inner wall 111, and the heat exchange plate 120 is clamped in the second end 11312. After the fluid passes through the second end 11312, it can directly enter the heat exchange channel 121. In this case, the through hole 113 is overall in a bell-mouth shape.
[0034] like Figure 2 As shown, taking the second end 11312 being located between the inner wall 111 and the outer wall 112 as an example, the through hole 113 may also include a connecting section 1132, one end of which passes through the inner wall 111, and the other end of which is located between the inner wall 111 and the outer wall 112 and communicates with the second end 11312. Correspondingly, the heat exchange plate 120 is clamped in the connecting section 1132. In this way, the external fluid enters the guide section 1131 from the first end 11311, then enters the connecting section 1132 from the second end 11312, and then enters the heat exchange channel 121 through the connecting section 1132.
[0035] It should be noted that the opening size of the connecting section 1132 is adapted to the outline size of the heat exchange plate 120 , which can facilitate the close fit between the heat exchange plate 120 and the connecting section 1132 and effectively reduce the fluid overflow from between the connecting section 1132 and the heat exchange plate 120 .
[0036] like Figure 1 As shown, the box body 110 includes a first side wall 114 and a second side wall 115 that are arranged opposite to each other. The first side wall 114 and the second side wall 115 both include the aforementioned inner wall 111, outer wall 112 and through hole 113. The heat exchange plate 120 is arranged between the first side wall 114 and the second side wall 115. The two ends of the heat exchange channel 121 are respectively connected to the through hole 113 on the first side wall 114 and the through hole 113 on the second side wall 115.
[0037] Taking the case where the fluid flows in from the through hole 113 on the first side wall 114 as an example, the fluid can flow into the heat exchange channel 121 through the through hole 113 on the first side wall 114, and then flow out of the heat exchange channel 121 after heat exchange with the battery cell 200 through the heat exchange plate 120, and then flow out of the box body 110 through the through hole 113 on the second side wall 115. In this process, not only can the cooling fluid be convenient for cooling the multiple battery cells 200 arranged between the first side wall 114 and the second side wall 115, but the fluid with a higher temperature after heat exchange can be discharged from the heat exchange channel 121, so that the subsequent fluid with a lower temperature can enter the heat exchange channel 121 again, and the battery cell 200 can be continuously cooled.
[0038] like Figure 1As shown, there are multiple heat exchange plates 120, and the multiple heat exchange plates 120 are arranged side by side at intervals. In practical applications, a battery cell 200 can be arranged between two adjacent heat exchange plates 120. After the cooling fluid flows into the multiple heat exchange plates 120, the two adjacent heat exchange plates 120 can cool and dissipate the opposite side walls of the battery cell 200 respectively, so that the heat dissipation efficiency of the multiple battery cells 200 can be improved.
[0039] Figure 3 This is a schematic diagram of the structure of a heat exchange plate provided by an exemplary embodiment of the present application. Figure 3 As shown, there are multiple heat exchange channels 121, which are stacked and distributed, and all of the multiple heat exchange channels 121 are connected to the through hole 113. In this way, on the one hand, the fluid flowing out of the through hole 113 can enter the multiple heat exchange channels 121, which can increase the flow rate of the cooling fluid in the heat exchange plate 120, thereby improving the heat dissipation efficiency of the battery cell 200; on the other hand, the multiple stacked heat exchange channels 121 can cool different parts of the battery cell 200, which can not only improve the overall heat dissipation efficiency of the battery cell 200, but also ensure the temperature uniformity of different parts of the battery cell 200, avoid the situation where the local temperature of the battery cell 200 is too high, and effectively extend the service life of the battery cell 200.
[0040] like Figure 3 As shown, the heat exchange plate 120 is provided with a plurality of curved portions 122, and the plurality of curved portions 122 are sequentially connected along the length direction of the heat exchange plate 120 to form a wavy structure. It should be noted that, in the case where a plurality of cylindrical battery cells 200 are arranged side by side, the heat exchange plate 120 with a wavy structure can be more suitable for the plurality of battery cells 200, and different curved portions 122 can be closely attached to different battery cells 200, so that the heat exchange plate 120 can cool and dissipate heat for a plurality of different battery cells 200 at the same time, thereby improving the heat dissipation efficiency.
[0041] In one embodiment, a thermally conductive adhesive layer is attached to the surface of the curved portion 122, and the thermally conductive adhesive layer is used to adhere to the battery cell 200. The thermally conductive adhesive layer can improve the heat exchange efficiency between the battery cell 200 and the cooling fluid, thereby improving the heat dissipation efficiency of the battery cell 200.
[0042] Figure 4 This is a schematic diagram of the structure of a bracket, a heat exchange plate and a battery cell provided by an exemplary embodiment of the present application. Figure 4As shown, the battery 100 may further include a bracket 130, the bracket 130 is located in the box body 110, the side wall of the bracket 130 is provided with a limiting groove 131, and the heat exchange plate 120 is engaged with the limiting groove 131. It should be understood that the limiting groove 131 can limit the heat exchange plate 120, prevent the heat exchange plate 120 from tilting and deviating, and effectively ensure that the heat exchange plate 120 is attached to the battery cell 200 for a long time.
[0043] In one embodiment, a limiting groove 131 is provided on the side wall of the bracket 130 corresponding to the aforementioned first side wall 114, and a limiting groove 131 is also provided on the side wall of the bracket 130 corresponding to the aforementioned second side wall 115. The two ends of the heat exchange plate 120 are respectively clamped in the two opposite limiting grooves 131, which can further improve the installation stability of the heat exchange plate 120.
[0044] Figure 5 The structural diagram of a bracket provided by an exemplary embodiment of the present application is shown in FIG. Figure 5 As shown, the bottom wall of the bracket 130 is provided with a plurality of slots 132 , and different slots 132 are used to hold different battery cells 200 . The slots 132 can limit the battery cells 200 to prevent the battery cells 200 from shaking, tilting, etc.
[0045] The embodiment of the present application also provides an aircraft, which may include the battery 100 as described in the previous embodiment and has all the functions of the battery 100. The beneficial effects of the aircraft can refer to the beneficial effects of the battery 100 described above.
[0046] It should be noted that, during the flight of the aircraft, the external flowing air can enter the heat exchange channel 121 through the through hole 113, and the air entering the heat exchange channel 121 realizes heat exchange with the battery cell 200 through the heat exchange plate 120, thereby dissipating heat for the battery cell 200. In other words, the aircraft can use the flowing air to continuously dissipate heat for the battery cell 200, remove the device specifically used for providing fluid, simplify the overall structure, reduce the overall space occupation, and effectively reduce the cost.
[0047] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.
[0048] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.
[0049] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.
[0050] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
[0051] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.
Claims
1. A battery, characterized in that: include: A box body (110), the box body (110) comprising an inner wall (111), an outer wall (112) and a through hole (113), the through hole (113) penetrating the inner wall (111) and the outer wall (112), the through hole (113) comprising a guide section (1131), the guide section (1131) comprising a first end (11311) and a second end (11312) arranged opposite to each other, the first end (11311) penetrating the outer wall (112), the second end (11312) being located between the inner wall (111) and the outer wall (112), or the second end (11312) penetrating the inner wall (111); wherein, in a direction from the second end (11312) to the first end (11311), the opening size of the guide section (1131) gradually increases; A heat exchange plate (120) is located in the box body (110), an end of the heat exchange plate (120) is clamped in the through hole (113), the heat exchange plate (120) is provided with a heat exchange channel (121), the heat exchange channel (121) is connected to the through hole (113), and the heat exchange plate (120) is used to fit a plurality of battery cells (200) in the box body (110).
2. The battery according to claim 1, characterized in that The through hole (113) further comprises a connecting section (1132), one end of the connecting section (1132) passes through the inner wall (111), and the other end of the connecting section (1132) is located between the inner wall (111) and the outer wall (112), and is connected to the second end (11312); wherein the heat exchange plate (120) is clamped in the connecting section (1132).
3. The battery according to claim 1, characterized in that The box body (110) comprises a first side wall (114) and a second side wall (115) which are arranged opposite to each other, and the first side wall (114) and the second side wall (115) both comprise the inner wall (111), the outer wall (112) and the through hole (113); The heat exchange plate (120) is arranged between the first side wall (114) and the second side wall (115), and two ends of the heat exchange channel (121) are respectively connected to the through hole (113) of the first side wall (114) and the through hole (113) of the second side wall (115).
4. The battery according to claim 1, characterized in that The number of the heat exchange channels (121) is plural, the multiple heat exchange channels (121) are distributed in layers, and the multiple heat exchange channels (121) are all connected to the through hole (113).
5. The battery according to any one of claims 1 to 4, characterized in that The heat exchange plate (120) is provided with a plurality of bent portions (122), and the plurality of bent portions (122) are sequentially connected along the length direction of the heat exchange plate (120) to form a wavy structure, and different bent portions (122) are used to cooperate with different battery cells (200).
6. The battery according to claim 5, characterized in that A heat-conducting adhesive layer is attached to the surface of the bent portion (122), and the heat-conducting adhesive layer is used to adhere to the battery cell (200).
7. The battery according to any one of claims 1 to 4, characterized in that The battery also includes: The bracket (130) is located in the box body (110); a side wall of the bracket (130) is provided with a limiting groove (131); and the heat exchange plate (120) is snap-connected with the limiting groove (131).
8. The battery according to claim 7, characterized in that The bottom wall of the bracket (130) is provided with a plurality of slots (132), and different slots (132) are used to hold different battery cells (200).
9. The battery according to any one of claims 1 to 4, characterized in that The number of the heat exchange plates (120) is plural, and the plurality of heat exchange plates (120) are arranged side by side and spaced apart.
10. An aircraft, characterized in that: include: A battery as claimed in any one of claims 1 to 9.