Intelligent battery pack structure

Abstract

The invention belongs to the technical field of unmanned aerial vehicle batteries, and particularly relates to an intelligent battery pack structure which comprises a plurality of heat-conducting fins and a heat dissipation fan, the heat-conducting fins are arranged at intervals, each heat-conducting fin comprises a heat-conducting part and heat dissipation air channels formed in the two sides of the heat-conducting part, and the heat-conducting parts on every two adjacent heat-conducting fins form a containing cavity matched with a battery; the heat dissipation fan can drive air to flow to the outside through the heat dissipation air channel. Heat released by the battery is transmitted to the heat dissipation air channel through the heat conduction part, air is further driven by the heat dissipation fan to flow to the outside through the heat dissipation air channel, and the heat dissipation air channel has a guiding effect, so that the problems of heat accumulation and humidity increase caused by retention and non-flowing of air inside can be avoided, the heat exchange efficiency can be improved, and the service life of the battery is prolonged. Therefore, heat on the heat conduction part can be continuously transferred to the heat dissipation air channel, heat dissipation of the battery is achieved, heat dissipation is uniform, heat dissipation efficiency is high, the working efficiency of the battery pack structure is effectively improved, the service life of the battery pack structure is effectively prolonged, and the battery pack structure is simple in structure and convenient to assemble.

Description

Technical Field

[0001] This invention belongs to the field of drone battery technology, and in particular relates to an intelligent battery pack structure. Background Technology

[0002] Currently, drones are used in many fields, such as aerial photography, patrol and disaster relief, and agricultural plant protection. As drones become larger and require longer battery life, the battery pack generates heat during prolonged high-rate discharge. When this heat accumulates to a certain high temperature, it affects the performance of the battery pack. The current cooling method for drone battery packs is usually to install cooling fans on the battery pack casing to dissipate the heat generated by the internal battery to the outside, thereby achieving a cooling effect. However, this cooling method can only target the external area of ​​the battery, and cannot effectively dissipate the heat generated in the central area of ​​the battery, resulting in uneven heat dissipation and poor cooling effect. Summary of the Invention

[0003] The purpose of this invention is to provide a smart battery pack structure that can solve the above-mentioned problems.

[0004] To achieve the above objectives, an embodiment of the present invention provides an intelligent battery pack structure, including heat-conducting sheets and a heat dissipation fan. Multiple heat-conducting sheets are spaced apart. Each heat-conducting sheet includes a heat-conducting part and heat dissipation ducts formed on both sides of the heat-conducting part. The heat-conducting parts on two adjacent heat-conducting sheets form cavities adapted to the battery. The heat dissipation fan can drive air to flow to the outside through the heat dissipation ducts.

[0005] Optionally, the heat-conducting part is configured as a groove adapted to the battery.

[0006] Optionally, a first wall is provided on both sides of the heat-conducting part extending outward horizontally, and a second wall is provided on the end of the first wall away from the heat-conducting part extending in the opposite direction to the opening direction of the heat-conducting part, and the first wall and the second wall form the heat dissipation air duct.

[0007] Optionally, both the first wall and the second wall are wavy.

[0008] Optionally, a support plate is provided below the heat-conducting sheet to abut against the battery.

[0009] Optionally, the battery also includes a circuit board, which is disposed above the heat-conducting sheet. The upper end of the battery is provided with two tabs, and the circuit board is provided with a socket corresponding to the tabs. The tabs pass through the sockets and are electrically connected to the circuit board.

[0010] Optionally, the system further includes a BMS management module, which is disposed above the circuit board and electrically connected to the circuit board. The cooling fan is located between the circuit board and the BMS management module and is electrically connected to the BMS management module.

[0011] Optionally, it also includes a housing, wherein the circuit board, BMS management module, heat-conducting plate and cooling fan are all disposed inside the housing, and a gap is formed between the heat-conducting plate and the interior of the housing.

[0012] Optionally, the housing includes an upper cover and a lower cover. The upper cover is detachably disposed on the upper end of the lower cover. A first air vent is disposed on the lower end of the lower cover. A second air vent is disposed on the side of the upper cover. An electrical connector is also disposed on the side of the upper cover. The electrical connector is electrically connected to the BMS management module.

[0013] Optionally, the top cover is provided with a handle.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the heat released by the battery is transferred to the heat dissipation duct through the heat-conducting part, and the air is further driven to flow to the outside through the heat dissipation duct by the heat dissipation fan. The heat dissipation duct has a guiding function, which can avoid the problem of heat accumulation and increased humidity caused by air stagnation inside and lack of air flow. It can also improve the heat exchange efficiency, so that the heat on the heat-conducting part can be continuously transferred to the heat dissipation duct, thereby achieving heat dissipation of the battery. The heat dissipation is uniform and efficient, which can effectively improve the working efficiency and service life of the battery pack structure. Moreover, the structure is simple and easy to assemble. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded view of the heat-conducting sheet, battery, and cooling fan in this invention.

[0017] Figure 2 This is a schematic diagram of the structure of the heat-conducting sheet of the present invention.

[0018] Figure 3 This is a top view of the present invention with the top cover hidden.

[0019] Figure 4 This is a schematic diagram of the connection between the heat-conducting sheet and the battery in this invention.

[0020] Figure 5 This is an exploded view of the present invention.

[0021] Figure 6 This is a perspective view of the present invention.

[0022] Figure 7 This is a bottom view of the present invention.

[0023] Figure 8 This is a schematic diagram of the structure of the heat-conducting sheet in another embodiment of the present invention.

[0024] In the picture:

[0025] 100. Heat-conducting plate; 110. Heat-conducting part; 111. First wall; 112. Second wall; 120. Heat dissipation duct; 130. Cavity

[0026] 200. Cooling fan;

[0027] 300. Battery; 310. Support plate; 320. Electrode tab;

[0028] 400. Circuit board; 410. Connector;

[0029] 500, BMS Management Module;

[0030] 600. Housing; 610. Top cover; 611. Second air vent; 612. Electrical connector; 613. Handle; 620. Bottom housing; 621. First air vent;

[0031] 700, gap. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of the present invention, it should be understood that if the embodiments of the present invention involve directional indications, such as up, down, left, right, front, back, inside, outside, etc., the orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the embodiments of the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of the present invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part. They can be mechanical or electrical connections. They can be direct connections or indirect connections through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] like Figures 1-8 As shown, this embodiment of the invention provides an intelligent battery pack structure, including a heat-conducting sheet 100, a heat dissipation fan 200, a circuit board 400, a BMS management module 500, and a housing 600.

[0037] Multiple heat-conducting sheets 100 are spaced apart. Specifically, the heat-conducting sheets 100 are preferably made of aluminum. Each heat-conducting sheet 100 includes a heat-conducting part 110 and heat dissipation channels 120 formed on both sides of the heat-conducting part 110. The heat-conducting parts 110 on two adjacent heat-conducting sheets 100 form cavities 130 adapted to the battery 300. Specifically, the heat-conducting part 110 is set as a groove adapted to the battery 300 to facilitate the installation of the battery 300 and to facilitate heat conduction at various positions of the battery 300. It should be noted that after the heat-conducting sheets 100 and the battery 300 are assembled, they are fixed by wrapping with adhesive.

[0038] Furthermore, when the battery 300 releases heat, the heat is transferred to the heat-conducting part 110, and further transferred to the heat dissipation duct 120. The cooling fan 200 can drive the air to flow to the outside through the heat dissipation duct 120. The heat dissipation duct 120 has a guiding function, which can avoid the problem of heat accumulation and increased humidity caused by air stagnation inside and lack of air flow. It can also improve the heat exchange efficiency, so that the heat on the heat-conducting part 110 can be continuously transferred to the heat dissipation duct 120, thereby achieving heat dissipation at all parts of the battery 300. The heat dissipation is uniform and efficient, which can effectively improve the working efficiency of the battery pack structure. Moreover, the structure is simple and easy to assemble.

[0039] In one embodiment, such as Figure 2 and Figure 3As shown, the heat-conducting part 110 has a first wall 111 extending horizontally outward on both sides. The end of the first wall 111 away from the heat-conducting part 110 has a second wall 112 extending in the opposite direction to the opening direction of the heat-conducting part 110. The first wall 111 and the second wall 112 form a heat dissipation duct 120. The structure is simple, easy to manufacture and process, and can increase the heat dissipation area, thereby improving the heat dissipation efficiency.

[0040] In other embodiments, such as Figure 8 As shown, both the first wall 111 and the second wall 112 are designed in a wave-like shape to improve the stability of the first wall 111 and the second wall 112, and to further increase the heat dissipation area and improve the heat dissipation efficiency.

[0041] In one embodiment, such as Figure 4 As shown, a support plate 310 is provided below the heat-conducting plate 100 to abut against the battery 300, so as to ensure the stability of the battery 300 installation and to conduct heat to the bottom of the battery 300. The support plate 310 is preferably made of aluminum.

[0042] In one embodiment, such as Figure 1 As shown, the circuit board 400 is positioned above the heat-conducting plate 100, and the upper end of the battery 300 is provided with two tabs 320. The circuit board 400 is provided with a socket 410 corresponding to the tabs 320. The tabs 320 pass through the socket 410 and are electrically connected to the circuit board 400, thereby improving the assembly efficiency of the battery 300 and the circuit board 400 and facilitating new employees to quickly get started with the operation.

[0043] In one embodiment, such as Figure 5 As shown, the BMS management module 500 is positioned above the circuit board 400 and is electrically connected to the circuit board 400. The cooling fan 200 is located between the circuit board 400 and the BMS management module 500 and is electrically connected to the BMS management module 500. The BMS management module 500 is existing technology and will not be described in detail here. The BMS management module 500 can perform functions such as power level display, battery usage count recording and storage, battery 300 abnormal usage alarm, temperature protection and alarm, and overheat active cooling.

[0044] In one embodiment, such as Figure 3 and 5 As shown, the circuit board 400, BMS management module 500, heat-conducting sheet 100 and cooling fan 200 are all disposed inside the housing 600. A gap 700 is formed between the heat-conducting sheet 100 and the interior of the housing 600. This gap 700 is used to fill EVA foam to fix the glued heat-conducting sheet 110 and battery 300, and can prevent air turbulence entering the interior of the housing 600, thereby further improving the heat dissipation effect.

[0045] More specifically, such as Figure 5 , 6 As shown in Figure 7, the housing 600 includes an upper cover 610 and a bottom cover 620. The upper cover 610 is detachably disposed on the upper end of the bottom cover 620. A first air vent 621 is provided at the lower end of the bottom cover 620. A second air vent 611 is provided on the side of the upper cover 610. Air intake and heat exhaust are achieved through the first air vent 621 and the second air vent 611. An electrical connector 612 is also provided on the side of the upper cover 610. The electrical connector 612 is electrically connected to the BMS management module 500 and supplies power to the electronic products through the electrical connector 612.

[0046] In one embodiment, such as Figure 5 and 6 The top cover 610 shown is provided with a handle 613 to facilitate the handling of the battery pack structure.

[0047] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart battery pack structure, characterized in that: The invention comprises a heat conducting sheet (100) and a heat dissipation fan (200), wherein a plurality of the heat conducting sheets (100) are arranged at intervals, the heat conducting sheet (100) comprises a heat conducting portion (110) and heat dissipation ducts (120) formed on both sides of the heat conducting portion (110), the heat conducting portions (110) on two adjacent heat conducting sheets (100) are formed with a cavity (130) adapted to a battery (300), and the heat dissipation fan (200) can drive air to flow to the outside through the heat dissipation duct (120).

2. The intelligent battery pack structure according to claim 1, characterized in that: The heat conducting portion (110) is configured as a groove adapted to fit the battery (300).

3. The intelligent battery pack structure according to claim 2, characterized in that: A first wall (111) is horizontally extended outwardly on both sides of the heat-conducting portion (110); a second wall (112) is extended in a direction opposite to the opening direction of the heat-conducting portion (110) at one end of the first wall (111) away from the heat-conducting portion (110); the first wall (111) and the second wall (112) enclose the heat dissipation duct (120).

4. The intelligent battery pack structure according to claim 3, characterized in that: The first wall (111) and the second wall (112) are both wavy.

5. The intelligent battery pack structure according to claim 1, characterized in that: A supporting sheet (310) abutting against the battery (300) is provided below the heat conducting sheet (100).

6. The intelligent battery pack structure according to any one of claims 1 to 5, characterized in that: Also includes: A circuit board (400) is arranged above the heat conducting sheet (100); two pole ears (320) are arranged at the upper end of the battery (300); a socket (410) corresponding to the pole ears (320) is arranged on the circuit board (400); the pole ears (320) pass through the socket (410) to be electrically connected to the circuit board (400).

7. The intelligent battery pack structure according to claim 6, characterized in that: Also includes: A BMS management module (500) is disposed above the circuit board (400) and is electrically connected to the circuit board (400); the heat dissipation fan (200) is located between the circuit board (400) and the BMS management module (500) and is electrically connected to the BMS management module (500).

8. The intelligent battery pack structure according to claim 7, characterized in that: Also includes: The housing (600), the circuit board (400), the BMS management module (500), the heat conducting sheet (100) and the heat dissipation fan (200) are all arranged inside the housing (600), and a gap (700) is formed between the heat conducting sheet (100) and the inside of the housing (600).

9. The intelligent battery pack structure according to claim 8, characterized in that: The shell (600) comprises an upper cover (610) and a bottom shell (620); the upper cover (610) is detachably arranged at the upper end of the bottom shell (620); a first air outlet (621) is arranged at the lower end of the bottom shell (620); a second air outlet (611) is arranged on the side of the upper cover (610); an electrical connector (612) is also arranged on the side of the upper cover (610); and the electrical connector (612) is electrically connected to the BMS management module (500).

10. The intelligent battery pack structure according to claim 9, characterized in that: The upper cover (610) is provided with a handle (613).

Images