A UAV battery and thermal management control system

Abstract

The present invention provides a battery and thermal management control system for a drone. According to the battery temperature information obtained by the temperature sensor, the control device can adjust the internal temperature of the battery box by controlling the working mode of the first semiconductor refrigeration plate and the second semiconductor refrigeration plate to ensure that the battery temperature is maintained within a relatively reasonable temperature range. The battery mounting frame is composed of an inner frame and an outer frame. The inner frame and the outer frame are connected by a shock-absorbing member, which can reduce the influence of the inner frame on the outside world. The battery mounting frame is offset against the groove in the shell to achieve the purpose of positioning. The shell positioning groove corresponds to the positioning protrusion of the cover body, and a sealing strip is also provided at the connection, which not only increases the sealing but also can position the cover body. The first inner frame support plate and the second inner frame support plate are respectively provided with a first ventilation duct and a second ventilation duct, which can make the air circulation inside the battery box better. The first ventilation duct and the second ventilation duct are both S-shaped, which can increase the time that air circulates at the battery and have a better temperature control effect on the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle (UAV) battery thermal management, and in particular to a UAV battery and thermal management control system. Background Art

[0002] Existing technologies often use aluminum heat sinks (heat sinks) placed inside the battery box to dissipate heat from the battery. This method can dissipate heat to a certain extent; however, when the battery is cold, the surrounding environment cannot be heated, which affects battery performance to a certain extent. In particular, when the battery temperature drops below -10 degrees Celsius, the battery performance degrades significantly. In outdoor drone applications, low temperature environments are common, which is not conducive to practical use. Furthermore, in existing technologies, the battery box is directly connected to the drone's outer shell and lacks a shock-absorbing structure. This can cause damage to the battery box and batteries when the drone vibrates or collides. Summary of the Invention

[0003] The present invention provides a UAV battery and thermal management control system, which solves the problem in the prior art that UAVs cannot be used in low-temperature environments when used outdoors.

[0004] Technical solution:

[0005] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0006] A drone battery and thermal management control system includes a battery box, a first semiconductor refrigeration chip, a second semiconductor refrigeration chip, a battery, a battery mounting bracket, and a control device; the battery is disposed in the battery mounting bracket; the battery mounting bracket is connected to the interior of the battery box; mounting holes are formed on two opposing sides of the battery box; the first semiconductor refrigeration chip and the second semiconductor refrigeration chip are respectively disposed in the mounting holes of the battery box; the first semiconductor refrigeration chip and the second semiconductor refrigeration chip are respectively electrically connected to the control device; the battery is electrically connected to the first semiconductor refrigeration chip, the second semiconductor refrigeration chip, and the control device; a plurality of temperature sensors are provided within the battery mounting bracket at the location of the battery; the temperature sensors within the battery mounting bracket are electrically connected to the control device;

[0007] The battery mounting frame includes an inner frame and an outer frame; the inner frame is connected to the outer frame via a shock-absorbing member.

[0008] Preferably, a first fan and a second fan are provided inside the battery box; the first fan is arranged on a side close to the first semiconductor refrigeration sheet; the second fan is arranged on a side close to the second semiconductor refrigeration sheet; the first fan is electrically connected to the first semiconductor refrigeration sheet; the second fan is electrically connected to the second semiconductor refrigeration sheet.

[0009] Preferably, the battery box includes a shell and a cover that are detachably connected to each other; one end of the battery mounting bracket is connected to the bottom surface of the cover; a groove is provided on the bottom surface of the shell; and the other end of the battery mounting bracket abuts against the groove of the shell.

[0010] Preferably, a positioning protrusion is provided on the bottom surface of the cover body; a positioning groove is provided on the shell body; and the positioning protrusion of the cover body is connected to the positioning groove of the shell body.

[0011] Preferably, a handle is provided on the top of the cover.

[0012] Preferably, the inner frame includes two first inner frame support plates, at least one second inner frame support plate and a plurality of inner frame pillars; the plurality of inner frame pillars are connected by two first inner frame support plates and at least one second inner frame support plate; the two first inner frame support plates are respectively arranged near the two ends of the inner frame pillars; the second inner frame support plate is arranged on the inner frame pillars and located between the two first inner frame support plates; a first ventilation duct is provided on the side of the first inner frame support plate in contact with the battery; second ventilation ducts are provided on the upper and lower surfaces of the second inner frame support plate; a temperature sensor is provided on the second inner frame support plate.

[0013] Preferably, the first ventilation duct and the second ventilation duct are S-shaped.

[0014] Preferably, the outer frame includes an outer frame support plate and a plurality of outer frame pillars; the plurality of outer frame pillars are connected through the outer frame support plate; the outer frame support plate is arranged at the bottom of the outer frame pillar; the bottom surface of the outer frame support plate is against the groove of the shell; the plurality of outer frame pillars are connected to the plurality of inner frame pillars through the shock-absorbing member.

[0015] Preferably, a thermal management control system is further included, characterized in that the control device is configured to obtain the temperature information of the battery through the temperature sensor of the battery mounting rack, and compare the temperature information with the battery-specific parameters to perform internal judgment; the control device sends a control instruction to simultaneously start the first semiconductor refrigeration plate and the first fan or simultaneously start the second semiconductor refrigeration plate and the second fan.

[0016] Beneficial effects:

[0017] The present invention provides a drone battery and thermal management control system. This system uses a control device to control the operating modes of first and second semiconductor cooling fins to regulate the internal temperature of the battery compartment, ensuring that the drone battery temperature remains within a relatively reasonable range. The battery mounting frame consists of an inner frame and an outer frame, connected by a shock-absorbing member to reduce the impact of external vibration and impact on the inner frame. The battery mounting frame abuts against a groove within the housing to provide positioning. The housing's positioning groove corresponds to the positioning protrusion of the cover, and a sealing strip is provided at the connection, which not only enhances sealing but also provides positioning for the cover. The first and second inner frame support plates are each provided with a first ventilation duct and a second ventilation duct, respectively, to improve air circulation within the battery compartment. Both the first and second ventilation ducts are S-shaped, increasing the time air circulates around the battery, effectively controlling the battery temperature. The thermal management control system determines the internal temperature of the battery compartment based on battery temperature information obtained by a temperature sensor. The first semiconductor cooling fin and the first fan, or the second semiconductor cooling fin and the second fan, are activated simultaneously, thereby achieving effective temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front cross-sectional view of a UAV battery and thermal management control system according to the present invention;

[0019] Figure 2 A top view of the first inner frame support plate located at the bottom of a UAV battery and thermal management control system according to the present invention;

[0020] Figure 3 This is a top view of the second inner frame support plate in a UAV battery and thermal management control system of the present invention;

[0021] Figure 4 This is a flow chart of a UAV battery and thermal management control system of the present invention.

[0022] [Description of Reference Numerals]

[0023] 1-battery box, 11-housing, 12-cover, 121-handle,

[0024] 2-first semiconductor refrigeration chip, 3-second semiconductor refrigeration chip, 4-battery,

[0025] 5-battery mounting frame, 51-inner frame, 511-first inner frame support plate, 512-inner frame pillar, 513-second inner frame support plate, 514-first ventilation duct. 515-second ventilation duct, 52-outer frame, 521-outer frame pillar, 522-outer frame support plate, 53-shock absorber,

[0026] 6-control device, 7-first fan, 8-second fan. DETAILED DESCRIPTION

[0027] The present invention provides a UAV battery and thermal management control system, which solves the problem in the prior art that UAVs cannot be used in low-temperature environments when used outdoors.

[0028] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0029] Example:

[0030] The present invention provides a battery and thermal management control system for an unmanned aerial vehicle, comprising a battery box 1, a first semiconductor refrigeration sheet 2, a second semiconductor refrigeration sheet 3, a battery 4, a battery mounting bracket 5, and a control device 6; the battery 4 is disposed in the battery mounting bracket 5; the battery mounting bracket 5 is connected to the interior of the battery box 1; mounting holes are provided on two opposite sides of the battery box 1; the first semiconductor refrigeration sheet 2 and the second semiconductor refrigeration sheet 3 are respectively disposed in the mounting holes of the battery box 1; the first semiconductor refrigeration sheet 2 and the second semiconductor refrigeration sheet 3 are respectively electrically connected to the control device 6; the battery 4 is electrically connected to the first semiconductor refrigeration sheet 2, the second semiconductor refrigeration sheet 3, and the control device 6; a plurality of temperature sensors are provided inside the battery mounting bracket 5 at the location of the battery 4; the temperature sensors in the battery mounting bracket 5 are electrically connected to the control device 6;

[0031] The battery mounting frame 5 includes an inner frame 51 and an outer frame 52 ; the inner frame 51 is connected to the outer frame 52 via a shock absorbing member 53 .

[0032] In this embodiment of the present invention, the control device 6 utilizes an MCU control board. An MCU control board, also known as a microcontroller unit (MCU), is a central processing unit (CPU) with reduced frequency and specifications. It integrates peripheral interfaces such as memory, counters, USB, A / D converters, UART, PLC, DMA, and even LCD driver circuits onto a single chip, forming a chip-level computer capable of providing diverse control combinations for different applications.

[0033] The cold surface of the first semiconductor cooling sheet 2 is located outside the battery box 1, and the hot surface of the first semiconductor cooling sheet 2 is located inside the battery box 1. The cold surface of the second semiconductor cooling sheet 3 is located inside the battery box 1, and the hot surface of the second semiconductor cooling sheet 3 is located outside the battery box 1.

[0034] The shock absorbing member 53 may be a spring in the embodiment of the present invention. This reduces the external influence on the inner frame 51 and protects the internal battery and circuit safety. Figure 1 As shown, after the battery 4 is inserted into the inner frame 51, it can be fixed in place by bolts, so that the battery 4 is not easy to shake and maintains a good wiring effect.

[0035] Furthermore, a first fan 7 and a second fan 8 are provided inside the battery box 1; the first fan 7 is arranged on the side close to the first semiconductor refrigeration sheet 2; the second fan 8 is arranged on the side close to the second semiconductor refrigeration sheet 3; the first fan 7 is electrically connected to the first semiconductor refrigeration sheet 2; the second fan 8 is electrically connected to the second semiconductor refrigeration sheet 3.

[0036] The control device 6 simultaneously controls the first fan 7 and the first semiconductor refrigeration plate 2, and the control device 6 simultaneously controls the second fan 8 and the second semiconductor refrigeration plate 3. The first fan 7 and the second fan 8 are used to enhance the air circulation inside the battery box 1.

[0037] Furthermore, the battery case 1 comprises a detachably connected housing 11 and cover 12. One end of the battery mounting bracket 5 is connected to the bottom surface of the cover 12. The bottom surface of the housing 11 is provided with a groove. The other end of the battery mounting bracket 5 abuts against the groove of the housing 11, providing a certain positioning effect and preventing the battery mounting bracket 5 from shaking or shifting during flight.

[0038] Furthermore, the bottom surface of the cover 12 is provided with a positioning protrusion; the housing 11 is provided with a positioning groove; and the positioning protrusion of the cover 12 is connected to the positioning groove of the housing 11. In this embodiment of the present invention, sealing strips are provided in the positioning groove of the housing 11 and at the positioning protrusion of the cover 12. This not only improves sealing but also secures the cover 12 in place.

[0039] Furthermore, a handle 121 is provided on the top of the cover 12. This facilitates access to the batteries 4 within. The entire cover 12 can be removed by simply pulling it out using the handle 121. Because one end of the battery mounting bracket 5 is connected to the cover 12, the entire mounting bracket 5 is accessible. The batteries 4 are detachably connected to the mounting bracket 5, making battery replacement easier.

[0040] Furthermore, the inner frame 51 includes two first inner frame support plates 511, at least one second inner frame support plate 513 and multiple inner frame pillars 512; multiple inner frame pillars 512 are connected by two first inner frame support plates 511 and at least one second inner frame support plate 513; the two first inner frame support plates 511 are respectively arranged near the two ends of the inner frame pillars 512; the second inner frame support plate 513 is arranged on the inner frame pillars 512 and located between the two first inner frame support plates 511; a first ventilation duct 514 is provided on the side of the first inner frame support plate 511 that contacts the battery 4; second ventilation ducts 515 are provided on the upper and lower surfaces of the second inner frame support plate 513; and a temperature sensor is provided on the second inner frame support plate 513.

[0041] The battery 4 is slidably inserted into the inner frame 51. Figure 1 As shown, after the battery 4 is inserted, it can be positioned and locked with bolts through the positioning holes on the inner frame support 512 to prevent the battery 4 from shaking due to the operation of the drone.

[0042] The ventilation direction of the first ventilation duct 514 and the second ventilation duct 515 is opened along the blowing direction of the first fan 7 and the second fan 8. The shape of the first ventilation duct 514 and the second ventilation duct 515 can be linear, so that the air flow inside the battery box 1 is smoother.

[0043] Furthermore, the first ventilation channel 514 and the second ventilation channel 515 are in an S-shaped shape. Figure 2 、 3 As shown, the purpose is to allow the air generated by the first semiconductor refrigeration sheet 2 or the second semiconductor refrigeration sheet 3 to flow evenly over the upper and lower surfaces of the battery 4 for a long time, thereby greatly increasing the temperature control effect on the battery 4.

[0044] Furthermore, the outer frame 52 includes an outer frame support plate 522 and a plurality of outer frame pillars 521; the plurality of outer frame pillars 521 are connected through the outer frame support plate 522; the outer frame support plate 522 is arranged at the bottom of the outer frame pillar 521; the bottom surface of the outer frame support plate 522 is against the groove of the shell 11; the plurality of outer frame pillars 521 are connected to the plurality of inner frame pillars 512 through the shock-absorbing member 53.

[0045] Each outer frame support 521 is connected to an inner frame support 512 via a shock absorber 53. Because the shock absorber 53 in this embodiment of the present invention is a spring, the inner frame support 512 is provided with connection ports at its upper and lower ends. The outer frame support 521 is provided with a connecting protrusion on the side closest to the inner frame support 512. One end of the shock absorber 53 is connected to the connection port of the inner frame support 512, and the other end is connected to the connecting protrusion of the outer frame support 521.

[0046] Furthermore, there is also a thermal management control system, characterized in that the control device 6 is configured to obtain the temperature information of the battery 4 through the temperature sensor of the battery mounting bracket 5, and compare the temperature information with the specific parameters of the battery 4 to perform internal judgment; the control device 6 sends a control instruction to simultaneously start the first semiconductor refrigeration plate 2 and the first fan 7 or simultaneously start the second semiconductor refrigeration plate 3 and the second fan 8.

[0047] The first semiconductor refrigeration plate 2 and the first fan 7 are controlled simultaneously, and the second semiconductor refrigeration plate 3 and the second fan 8 are controlled simultaneously. When the control device 6 starts one group, the other group is in a stopped state.

[0048] Working principle:

[0049] The battery compartment 1 is a sealed space, with the first and second semiconductor refrigeration sheets 2 and 3 mounted on its left and right side walls, respectively. The hot side of the first semiconductor refrigeration sheet 2 faces the interior of the battery compartment 1, while the cold side of the second semiconductor refrigeration sheet 3 faces the interior of the battery compartment 1. The control device 6 obtains temperature information from the battery 4 via a temperature sensor and compares this temperature information with specific parameters of the battery 4 for internal determination. If the battery temperature is too high, the control device 6 sends a control instruction to activate the second semiconductor refrigeration sheet 3 and deactivate the first semiconductor refrigeration sheet 2, thereby lowering the internal temperature of the battery compartment 1. If the battery temperature is too low, the control device 6 sends a control instruction to activate the first semiconductor refrigeration sheet 2 and deactivate the second semiconductor refrigeration sheet 3, thereby raising the internal temperature of the battery compartment 1. Through this regulation mechanism, the internal temperature of the battery compartment 1 is maintained within a reasonable range, thereby keeping the temperature of the battery 4 neither too high nor too low.

[0050] The present invention provides a drone battery and thermal management control system that utilizes the heat transfer function of semiconductor refrigeration chips, in conjunction with a fan and structural airflow design, to achieve heat conversion by providing corresponding control instructions to the semiconductor refrigeration chips. The control device 6 can obtain the temperature of the battery 4 through a temperature sensor and send corresponding control instructions to the first semiconductor refrigeration chip 2 and the second semiconductor refrigeration chip 3. The battery 4 provides the power supply required for system operation. The temperature sensor of the battery 4 is closely attached to the surface of the battery 4 and can generate different electrical signals according to changes in the temperature of the battery 4, which are transmitted to the control device 6 for control.

[0051] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0052] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A drone battery, characterized in that: The invention comprises a battery box (1), a first semiconductor refrigeration sheet (2), a second semiconductor refrigeration sheet (3), a battery (4), a battery mounting frame (5) and a control device (6); the battery (4) is arranged in the battery mounting frame (5); the battery mounting frame (5) is connected to the inside of the battery box (1); mounting holes are provided on two opposite sides of the battery box (1); the first semiconductor refrigeration sheet (2) and the second semiconductor refrigeration sheet (3) are respectively arranged in the mounting holes of the battery box (1); the first semiconductor refrigeration sheet (2) and the second semiconductor refrigeration sheet (3) are respectively electrically connected to the control device (6); the battery (4) is electrically connected to the first semiconductor refrigeration sheet (2), the second semiconductor refrigeration sheet (3) and the control device (6); a plurality of temperature sensors are provided at the battery (4) inside the battery mounting frame (5); the temperature sensors in the battery mounting frame (5) are electrically connected to the control device (6); The battery mounting frame (5) comprises an inner frame (51) and an outer frame (52); the inner frame (51) is connected to the outer frame (52) via a shock absorbing member (53); A first fan (7) and a second fan (8) are provided inside the battery box (1); the first fan (7) is arranged on a side close to the first semiconductor refrigeration sheet (2); the second fan (8) is arranged on a side close to the second semiconductor refrigeration sheet (3); the first fan (7) is electrically connected to the first semiconductor refrigeration sheet (2); and the second fan (8) is electrically connected to the second semiconductor refrigeration sheet (3).

2. The drone battery according to claim 1, characterized in that: The battery box (1) comprises a shell (11) and a cover (12) that are detachably connected to each other; one end of the battery mounting frame (5) is connected to the bottom surface of the cover (12); the bottom surface of the shell (11) is provided with a groove; the other end of the battery mounting frame (5) abuts against the groove of the shell (11).

3. The drone battery according to claim 2, characterized in that: The bottom surface of the cover body (12) is provided with a positioning protrusion; the housing (11) is provided with a positioning groove; the positioning protrusion of the cover body (12) is connected to the positioning groove of the housing (11).

4. The drone battery according to claim 2, characterized in that: A handle (121) is provided on the top of the cover body (12).

5. The drone battery according to claim 2, characterized in that: The inner frame (51) comprises two first inner frame support plates (511), at least one second inner frame support plate (513) and a plurality of inner frame pillars (512); the plurality of inner frame pillars (512) are connected via the two first inner frame support plates (511) and the at least one second inner frame support plate (513); the two first inner frame support plates (511) are respectively arranged near the two ends of the inner frame pillars (512); the second inner frame support plate (513) is arranged on the inner frame pillars (512) between the two first inner frame support plates (511); a first ventilation duct (514) is provided on the side of the first inner frame support plate (511) in contact with the battery (4); a second ventilation duct (515) is provided on both the upper and lower surfaces of the second inner frame support plate (513); and a temperature sensor is provided on the second inner frame support plate (513).

6. The drone battery according to claim 5, characterized in that: The first ventilation channel (514) and the second ventilation channel (515) are in an S-shaped shape.

7. The drone battery according to claim 5, characterized in that: The outer frame (52) includes an outer frame support plate (522) and a plurality of outer frame pillars (521); the plurality of outer frame pillars (521) are connected via the outer frame support plate (522); the outer frame support plate (522) is arranged at the bottom of the outer frame pillar (521); the bottom surface of the outer frame support plate (522) abuts against the groove of the shell (11); the plurality of outer frame pillars (521) are connected to the plurality of inner frame pillars (512) via the shock absorbing member (53).

8. The UAV battery according to any one of claims 1 to 7, further comprising a thermal management control system, characterized in that: The control device (6) is configured to obtain temperature information of the battery (4) through a temperature sensor of the battery mounting frame (5), and compare the temperature information with a specific parameter of the battery (4) to perform an internal judgment; the control device (6) sends a control instruction to simultaneously start the first semiconductor refrigeration plate (2) and the first fan (7) or to simultaneously start the second semiconductor refrigeration plate (3) and the second fan (8).

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