A high-voltage control box for lithium battery energy storage in new energy vehicles

Abstract

This utility model discloses a high-voltage control box for lithium-ion battery energy storage in new energy vehicles, relating to the technical field of high-voltage control boxes for new energy vehicles. The high-voltage control box includes a control box body and a radiator disposed on one side of the control box body. A filter plate is disposed on the other side of the control box body through an air inlet. An air duct is disposed within the control box body, and the air duct is connected to the radiator via an adjustment device for adjusting the angle of the air duct. This utility model has the advantage of being able to adjust the orientation of the radiator air duct according to the working state of the components, increasing heat dissipation to the heat-generating points and thus improving the heat dissipation effect. This solves the problem that the working state of the components inside the high-voltage control box varies, causing the heat-generating point position to change accordingly, while current radiators generally have fixed heat dissipation positions, resulting in poor heat dissipation.

Description

Technical Field

[0001] This utility model relates to the technical field of high-voltage control boxes for new energy vehicles, specifically a high-voltage control box for lithium battery energy storage in new energy vehicles. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels with new onboard power devices), integrating advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. The high-voltage control box is a core electrical component of new energy vehicles, primarily used to manage the high-voltage electrical energy system that uses lithium-ion batteries as energy storage. This control box integrates switching, protection, and monitoring functions. Through internal contactors, fuses, sensors, and other components, it achieves the distribution and control of electrical energy between the battery and high-voltage loads such as the motor and charging equipment. It also possesses multiple protection mechanisms, including overvoltage, overcurrent, and short-circuit protection, to ensure the safe and stable operation of the system. Furthermore, it can exchange data with the battery management system and vehicle controller to optimize energy management efficiency.

[0003] Currently, high-voltage control boxes use radiators for heat dissipation. However, the working state of the internal components of the high-voltage control box varies, so the location of the heat-generating point will change according to the working state. Currently, the heat dissipation position of the radiator is generally fixed, resulting in poor heat dissipation effect. Utility Model Content

[0004] This utility model provides a high-voltage control box for lithium battery energy storage in new energy vehicles. It has the advantage of being able to adjust the orientation of the radiator air duct according to the working state of the components, thereby increasing the heat dissipation at the heat-generating point and improving the heat dissipation effect. This solves the problem that the working state of the internal components of the high-voltage control box is different, and the position of the heat-generating point will change according to the working state. Currently, the heat dissipation position of the radiator is generally fixed, resulting in poor heat dissipation effect.

[0005] To achieve the goal of adjusting the orientation of the radiator air duct according to the working state of the components, thereby increasing heat dissipation to the heat-generating points and improving the heat dissipation effect, this utility model provides the following technical solution: a high-voltage control box for lithium battery energy storage in new energy vehicles, including a control box body, and further including: a radiator disposed on one side of the control box body, and a filter plate disposed on the other side of the control box body through an air inlet; an air duct disposed within the control box body, the air duct being connected to the radiator through an adjustment device, the adjustment device being used to adjust the angle of the air duct; and a sealing device disposed at the opening of the air duct, the sealing device being used to seal the air duct when the radiator is not in use.

[0006] As a preferred embodiment of this utility model, the adjustment device includes a fixed frame, an adjustment cavity, and a drive assembly. The fixed frame is fixedly disposed on one side of the control box, the radiator is installed on one side of the air duct, both sides of the adjustment cavity are arc-shaped, the adjustment cavity is adapted to be disposed inside the fixed frame, the air duct is fixedly connected to the adjustment cavity, the sealing device is disposed inside the adjustment cavity, and the drive assembly is disposed on the surface of the fixed frame. The drive assembly is used to drive the adjustment cavity and the sealing device to move.

[0007] As a preferred technical solution of this utility model, the sealing device includes a rotating tube and a sealing plate. Both the rotating tube and the sealing plate are disposed in the adjustment cavity. Both ends of the rotating tube are connected to the adjustment cavity through sealed bearings. The sealing plate is tightly fitted to the inner wall of the adjustment cavity. The curvature of the sealing plate is adapted to the inner wall of the adjustment cavity. The sealing plate is fixedly connected to the surface of the rotating tube through a connecting rod.

[0008] As a preferred technical solution of this utility model, the driving assembly includes a first electric push rod, a drive motor, a snap-fit ​​component, and a fixing tube. The first electric push rod is fixedly disposed on the surface of the fixing frame. The drive motor is disposed at the end of the telescopic shaft of the first electric push rod through a mounting bracket. The snap-fit ​​component is disposed on the surface of the output shaft of the drive motor. The fixing tube is fixedly disposed on the surface of the adjusting cavity. The fixing tube is connected to the rotating tube. The snap-fit ​​component can be connected to the fixing tube and the rotating tube respectively.

[0009] As a preferred embodiment of this utility model, the snap-fit ​​component includes a first snap-fit ​​toothed ring, a second snap-fit ​​toothed ring, and a movable toothed ring. The movable toothed ring is fixedly sleeved on the surface of the output shaft of the drive motor. The first snap-fit ​​toothed ring is fixedly disposed inside the fixed tube, and the second snap-fit ​​toothed ring is fixedly disposed inside the rotating tube. The movable toothed ring can mesh with the first snap-fit ​​toothed ring and the second snap-fit ​​toothed ring respectively.

[0010] As a preferred embodiment of this utility model, a protective cover is provided on the surface of the fixed frame, the driving component is disposed inside the protective cover, and the protective cover is installed on the surface of the fixed frame by fixing bolts.

[0011] As a preferred embodiment of this utility model, one end of the air guide pipe is connected to an extension pipe, and a second electric push rod is fixedly provided on the surface of the air guide pipe, with the telescopic end of the second electric push rod fixedly connected to the extension pipe.

[0012] Compared with the prior art, this utility model provides a high-voltage control box for lithium battery energy storage in new energy vehicles, which has the following advantages:

[0013] This high-voltage control box for lithium battery energy storage in new energy vehicles has different heat dissipation points depending on the working state of the control box. The controller then controls the adjustment device to adjust the air duct so that the air duct is oriented towards the heat dissipation point. This allows the air duct to be adjusted according to the working state of the components, increasing the heat dissipation to the heat dissipation point and thus improving the heat dissipation effect. This solves the problem that the heat dissipation point position changes depending on the working state of the components inside the high-voltage control box, while the heat dissipation position of the current heat dissipation radiator is generally fixed, resulting in poor heat dissipation effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the air inlet side of the control box of this utility model;

[0016] Figure 3 This is a schematic diagram of part of the adjusting device of this utility model;

[0017] Figure 4 This is a sectional view of the fixed frame structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the regulating cavity structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the drive electrical component of this utility model.

[0020] In the diagram: 1. Control box; 2. Radiator; 3. Filter plate; 4. Air duct; 5. Fixing frame; 6. Adjustment chamber; 7. Rotary pipe; 8. Sealing plate; 9. First electric push rod; 10. Drive motor; 11. Fixing pipe; 12. First snap-fit ​​toothed ring; 13. Second snap-fit ​​toothed ring; 14. Movable toothed ring; 15. Protective cover; 16. Extension pipe; 17. Second electric push rod. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6This utility model discloses a high-voltage control box for lithium battery energy storage in new energy vehicles, including a control box body 1, and further including: a radiator 2 disposed on one side of the control box body 1, and a filter plate 3 disposed on the other side of the control box body 1 through an air inlet; an air guide pipe 4 disposed inside the control box body 1, the air guide pipe 4 being connected to the radiator 2 through an adjustment device, the adjustment device being used to adjust the angle of the air guide pipe 4; and a sealing device disposed at the opening of the air guide pipe 4, the sealing device being used to seal the air guide pipe 4 when the radiator 2 is not in use.

[0023] Specifically, the adjustment device includes a fixed frame 5, an adjustment cavity 6, and a drive assembly. The fixed frame 5 is fixedly installed on one side of the control box 1, the radiator 2 is installed on one side of the air duct 4, both sides of the adjustment cavity 6 are arc-shaped, the adjustment cavity 6 is adapted to be installed inside the fixed frame 5, the air duct 4 is fixedly connected to the adjustment cavity 6, the sealing device is installed inside the adjustment cavity 6, and the drive assembly is installed on the surface of the fixed frame 5. The drive assembly is used to drive the adjustment cavity 6 and the sealing device to move.

[0024] In this embodiment, the drive motor 10 runs, and the output shaft of the drive motor 10 drives the adjustment cavity 6 to rotate through the snap-fit ​​component and the fixing tube 11, so that the adjustment cavity 6 moves along the inner side wall of the fixing frame 5. The adjustment cavity 6 drives the air duct 4 toward the heat point. Then, under the action of the radiator 2, the heat of the heat point is extracted through the air duct 4 and the adjustment cavity 6, thereby improving the heat dissipation effect of the heat point.

[0025] Specifically, the sealing device includes a rotating pipe 7 and a sealing plate 8. Both the rotating pipe 7 and the sealing plate 8 are set in the regulating cavity 6. Both ends of the rotating pipe 7 are connected to the regulating cavity 6 through sealed bearings. The sealing plate 8 is tightly fitted to the inner wall of the regulating cavity 6. The curvature of the sealing plate 8 is adapted to the inner wall of the regulating cavity 6. The sealing plate 8 is fixedly connected to the surface of the rotating pipe 7 through a connecting rod.

[0026] In this embodiment, when the radiator 2 is not in use, the drive assembly is connected to the rotating pipe 7, and then the drive assembly drives the rotating pipe 7 to rotate. The rotating pipe 7 drives the sealing plate 8 to move along the inner wall of the adjustment cavity 6 through the connecting rod. Then the sealing plate 8 seals the connection between the adjustment cavity 6 and the air duct 4, thereby preventing dust from entering the control box 1.

[0027] Specifically, the drive assembly includes a first electric push rod 9, a drive motor 10, a snap-fit ​​component, and a fixing tube 11. The first electric push rod 9 is fixedly mounted on the surface of the fixing frame 5. The drive motor 10 is mounted on the end of the telescopic shaft of the first electric push rod 9 via a mounting bracket. The snap-fit ​​component is mounted on the surface of the output shaft of the drive motor 10. The fixing tube 11 is fixedly mounted on the surface of the adjustment cavity 6. The fixing tube 11 is connected to the rotating tube 7. The snap-fit ​​component can be connected to the fixing tube 11 and the rotating tube respectively.

[0028] The snap-fit ​​component includes a first snap-fit ​​toothed ring 12, a second snap-fit ​​toothed ring 13, and a movable toothed ring 14. The movable toothed ring 14 is fixedly sleeved on the surface of the output shaft of the drive motor 10. The first snap-fit ​​toothed ring 12 is fixedly disposed inside the fixed tube 11, and the second snap-fit ​​toothed ring 13 is fixedly disposed inside the rotating tube 7. The movable toothed ring 14 can mesh with the first snap-fit ​​toothed ring 12 and the second snap-fit ​​toothed ring 13 respectively.

[0029] In this embodiment, the drive motor 10 operates, and the output shaft of the drive motor 10 drives the fixed tube 11 to rotate through the movable gear ring 14 and the first engaging gear ring 12. The fixed tube 11 drives the adjustment cavity 6 to rotate. When it is necessary to drive the rotating tube 7 to rotate, the first electric push rod 9 is activated. The telescopic shaft of the first electric push rod 9 drives the drive motor 10 to move downward, so that the drive motor 10 drives the movable gear ring 14 to disengage from the first engaging gear ring 12, and then engages with the second engaging gear ring 13 in the rotating tube 7. Then, the drive motor 10 drives the rotating tube 7 to rotate. Both the upper and lower ends of the movable gear ring 14 are chamfered to prevent the movable gear ring 14 from getting stuck when moving up and down.

[0030] Specifically, a protective cover 15 is provided on the surface of the fixed frame 5, and the drive component is located inside the protective cover 15. The protective cover 15 is installed on the surface of the fixed frame 5 by fixing bolts.

[0031] In this embodiment, the drive assembly can be protected by setting a protective cover 15, which is installed and removed by fixing bolts.

[0032] Specifically, an extension tube 16 is inserted into one end of the air duct 4, and a second electric push rod 17 is fixedly installed on the surface of the air duct 4. The telescopic end of the second electric push rod 17 is fixedly connected to the extension tube 16.

[0033] In this implementation scheme, when the heat source is far away, the controller controls the extension shaft of the second electric push rod 17 to extend, thereby extending the extension tube 16 and extending the length of the air duct 4 to further improve the heat dissipation effect.

[0034] The working principle and usage process of this utility model are as follows: During use, when the radiator 2 dissipates heat from the control box 1, the radiator 2 draws hot air out of the control box 1 through the air duct 4, creating a negative pressure inside the control box 1. Simultaneously, external air enters the control box 1 through the air inlet, where it is filtered by the filter plate 3. The heat generation points differ depending on the operating state of the control box 1. For example, when the vehicle is in different operating conditions such as fast charging or energy recovery, the current path and power distribution change, causing the heat concentration area to shift from drive circuit components such as the main contactor to charging relays, DC / DC converters, and other charging or... Energy conversion circuit components; then the controller controls the adjustment device to adjust the air duct 4, or temperature sensors are installed in different areas of the control box 1. The heat point is identified by the detected temperature, and the air duct 4 is adjusted. During adjustment, the drive motor 10 runs, and the output shaft of the drive motor 10 drives the adjustment cavity 6 to rotate through the snap-fit ​​component and the fixing tube 11, so that the adjustment cavity 6 moves along the inner side wall of the fixing frame 5. The adjustment cavity 6 drives the air duct 4 toward the heat point. Then, under the action of the radiator 2, the heat of the heat point is extracted through the air duct 4 and the adjustment cavity 6, improving the heat dissipation effect of the heat point.

[0035] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] 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. A high-voltage control box for lithium battery energy storage in new energy vehicles, comprising a control box body (1), characterized in that, Also includes: A radiator (2) is installed on one side of the control box (1), and a filter plate (3) is installed on the other side of the control box (1) through an air inlet. An air duct (4) is installed inside the control box (1). The air duct (4) is connected to the radiator (2) through an adjustment device. The adjustment device is used to adjust the angle of the air duct (4). A sealing device is provided at the opening of the air duct (4), the sealing device being used to seal the air duct (4) when the radiator (2) is not in use; The adjustment device includes a fixed frame (5), an adjustment cavity (6), and a drive assembly. The fixed frame (5) is fixedly installed on one side of the control box (1). The radiator (2) is installed on one side of the air duct (4). Both sides of the adjustment cavity (6) are arc-shaped. The adjustment cavity (6) is adapted to be installed inside the fixed frame (5). The air duct (4) is fixedly connected to the adjustment cavity (6). The sealing device is installed inside the adjustment cavity (6). The drive assembly is installed on the surface of the fixed frame (5). The drive assembly is used to drive the adjustment cavity (6) and the sealing device to move respectively. The sealing device includes a rotating tube (7) and a sealing plate (8). Both the rotating tube (7) and the sealing plate (8) are disposed in the adjustment cavity (6). Both ends of the rotating tube (7) are connected to the adjustment cavity (6) through sealed bearings. The sealing plate (8) is tightly fitted to the inner wall of the adjustment cavity (6). The curvature of the sealing plate (8) is adapted to the inner wall of the adjustment cavity (6). The sealing plate (8) is fixedly connected to the surface of the rotating tube (7) through a connecting rod. The drive assembly includes a first electric push rod (9), a drive motor (10), a snap-fit ​​component, and a fixing tube (11). The first electric push rod (9) is fixedly mounted on the surface of the fixing frame (5). The drive motor (10) is mounted on the end of the telescopic shaft of the first electric push rod (9) via a mounting bracket. The snap-fit ​​component is mounted on the surface of the output shaft of the drive motor (10). The fixing tube (11) is fixedly mounted on the surface of the adjustment cavity (6). The fixing tube (11) is connected to the rotating tube (7). The snap-fit ​​component can be connected to the fixing tube (11) and the rotating tube respectively. The snap-fit ​​component includes a first snap-fit ​​toothed ring (12), a second snap-fit ​​toothed ring (13), and a movable toothed ring (14). The movable toothed ring (14) is fixedly sleeved on the surface of the output shaft of the drive motor (10). The first snap-fit ​​toothed ring (12) is fixedly disposed inside the fixed tube (11), and the second snap-fit ​​toothed ring (13) is fixedly disposed inside the rotating tube (7). The movable toothed ring (14) can mesh with the first snap-fit ​​toothed ring (12) and the second snap-fit ​​toothed ring (13) respectively.

2. The high-voltage control box for lithium battery energy storage in new energy vehicles according to claim 1, characterized in that: The surface of the fixed frame (5) is provided with a protective cover (15), the drive assembly is disposed inside the protective cover (15), and the protective cover (15) is installed on the surface of the fixed frame (5) by fixing bolts.

3. The high-voltage control box for lithium battery energy storage in new energy vehicles according to claim 1, characterized in that: An extension tube (16) is inserted into one end of the air duct (4), and a second electric push rod (17) is fixedly installed on the surface of the air duct (4). The telescopic end of the second electric push rod (17) is fixedly connected to the extension tube (16).

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