Electric vehicle off-ramp power-off device

Abstract

This utility model provides a power-off device for an electric vehicle side ladder, including a power-off housing and an internal control module. The control module includes a relay module, a main control chip, a 5V voltage regulator module, and a DC-DC converter module. The advantages of this utility model are: through integrated design and intelligent control, this power-off device significantly improves the reliability and safety of the power-off system, enabling rapid response and precise control. It uses an STC series microcontroller, compatible with the 51 instruction set, increasing processing speed by over 30%. The 3-second delay power-off mechanism filters out brief contact interference, preventing misoperation and ensuring the driver's safe evacuation. This power-off device can be directly integrated with an anti-theft device, reducing the number of external components, lowering wiring complexity, and saving space and cost. The optocoupler relay module isolates the main control circuit from the high-voltage circuit, preventing malfunctions caused by electromagnetic interference.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle side ladder equipment, and in particular relates to an electric vehicle side ladder power-off device. Background Technology

[0002] Currently, power-off control for electric vehicle side ladders mainly relies on mechanical switches or simple relay circuits. However, existing power-off devices with mechanical switches are susceptible to vibration or wear, leading to delayed or false triggering of power-off signals, insufficient safety, and low integration: the power-off device needs to be installed independently, has poor linkage with anti-theft systems, and cannot achieve one-button power-off control; it has weak anti-interference capabilities, and without isolation (such as optocoupler relays), it is susceptible to electromagnetic interference, leading to malfunctions; it also lacks compatibility, as traditional 51 microcontrollers have low processing speeds, making it difficult to meet complex control requirements and unable to seamlessly integrate with modern anti-theft devices. Utility Model Content

[0003] In view of this, the present invention aims to provide a power-off device for electric vehicle side ladders to solve at least one of the problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] An electric vehicle side ladder power-off device includes a power-off housing and a control module inside it. The control module includes a relay module, a main control chip, a 5V voltage regulator module, and a DC-DC converter module. The relay module, the 5V voltage regulator module, and the DC-DC converter module are all communicatively connected to the main control chip. One side of the relay module is also communicatively connected to an anti-theft device.

[0006] It also includes a battery, which is used to power the control module;

[0007] The power-off housing includes a lower housing and an upper cover. The upper cover is installed on the top of the lower housing, and the control module is installed inside the lower housing.

[0008] Furthermore, a mounting plate is provided on one side of the lower housing, and the mounting plate has several mounting holes.

[0009] Furthermore, a clearance groove is provided on each side of the lower housing.

[0010] Furthermore, the inner walls on both sides of the lower housing are respectively provided with limiting grooves, and each limiting groove is also provided with a wiring hole.

[0011] Furthermore, the lower housing has recessed platforms on all four sides of its inner side.

[0012] Furthermore, a limiting strip is also provided on one side of the interior of the lower housing.

[0013] Furthermore, two rotating blocks are provided on one side of the top cover, and limiting blocks are provided on both sides of the bottom of the top cover, with two wiring holes opened on the limiting blocks.

[0014] Furthermore, the main control chip is an STC microcontroller chip.

[0015] Furthermore, it also includes a staggered limit switch, which is connected to the main control chip.

[0016] Compared with the prior art, the electric vehicle side ladder power-off device of this utility model has the following advantages:

[0017] This utility model discloses an electric vehicle side ladder power-off device. Through integrated design and intelligent control, this power-off device significantly improves the reliability and safety of the power-off system, enabling rapid response and precise control. It employs an STC series microcontroller, compatible with the 51 instruction set, increasing processing speed by over 30%. It supports interrupt control, ensuring real-time triggering of the interrupt signal when the side ladder is lowered. A 3-second delay power-off mechanism filters out brief contact interference, preventing misoperation and ensuring the driver's safe evacuation. This power-off device can be directly integrated with an anti-theft device, reducing the number of external components, lowering wiring complexity, and saving space and cost. An optocoupler relay module isolates the main control circuit from the high-voltage circuit, preventing malfunctions caused by electromagnetic interference. This device also simplifies troubleshooting by unifying the circuit board design, and the main control chip supports firmware upgrades. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure as described in the embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the lower housing as described in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the lower housing from another perspective according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the upper cover according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the upper cover from another perspective according to an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the control module circuit according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Power-off housing; 11. Lower housing; 111. Mounting plate; 112. Clearance groove; 113. Limiting groove; 114. Wiring hole one; 115. Recessed platform structure; 116. Limiting strip; 12. Top cover; 121. Rotating block; 122. Limiting block. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figures 1 to 6 As shown, an electric vehicle side ladder power-off device includes a power-off housing 1 and a control module inside it. The control module includes a relay module, a main control chip, a 5V voltage regulator module, and a DC-DC converter module. The relay module, the 5V voltage regulator module, and the DC-DC converter module are all communicatively connected to the main control chip. One side of the relay module is also communicatively connected to an anti-theft device.

[0032] It also includes a battery, which is used to power the control module;

[0033] The power-off housing 1 includes a lower housing 11 and an upper cover 12. The upper cover 12 is installed on the upper part of the lower housing 11, and a control module is installed inside the lower housing 11.

[0034] This electric vehicle side ladder power-off device can be integrated into the anti-theft circuit board. By adding peripheral circuits and chips, it controls the optocoupler relay to realize the circuit switching, so that the whole vehicle is powered off when the side ladder is lowered. The DC-DC conversion module and the 5V voltage regulator module work together to reduce the impact of voltage fluctuations on the relay and extend its service life.

[0035] In a preferred embodiment of this utility model, a mounting plate 111 is provided on one side of the lower housing 11, and a plurality of mounting holes are provided on the mounting plate 111. A clearance groove 112 is provided on each side of the lower housing 11, and a limiting groove 113 is provided on the inner wall of each side of the lower housing 11. A wiring hole 114 is provided in each limiting groove 113. A recessed platform structure 115 is provided on all four sides of the inner side of the lower housing 11, and a limiting strip 116 is provided on one side of the inner side of the lower housing 11. In this embodiment, the power-off device can be installed in a designated position by bolts through the mounting holes. The number of mounting holes can be determined according to the actual situation. The clearance groove 112 facilitates the operator to open the upper cover 12. The limiting groove 113 facilitates the use of the limiting block 121 of the upper cover 12. The wiring hole 114 facilitates the wiring of the control module. The recessed platform structure 115 facilitates the embedding of the upper cover 12. The limiting strip 116 facilitates the limiting of the rotation side of the upper cover 12.

[0036] In a preferred embodiment of this utility model, two rotating blocks 121 are provided on one side of the upper cover 12, and limiting blocks 122 are provided on both sides of the bottom of the upper cover 12. The limiting blocks 122 are also provided with wiring holes. In this embodiment, the rotating blocks 121 can be inserted into the rotation space formed by the limiting strip 116 and the top of the lower shell 11, so as to facilitate the rotation of the rotating blocks 121 in the rotation space, thereby realizing the opening and closing of the upper cover 12. The wiring holes 122 and the wiring holes 114 are coaxially arranged to facilitate the wiring of the control module.

[0037] In a preferred embodiment of this utility model, the main control chip is an STC series microcontroller chip, which has a faster processing speed and is fully compatible with the instruction system compared to the traditional 51 microcontroller. The program control adopts interrupt control, and the side ladder switch is a two-line limit switch. The key component of this control module circuit is the relay module, which needs to be used in conjunction with the anti-theft device. The working principle is that the ignition lock is closed by remote control of the anti-theft device. When the side ladder is lowered, the switch closes and triggers an interrupt. After a 3-second delay, the chip outputs a high level to open the normally closed relay. At this time, the anti-theft device will restart due to power failure, thereby disconnecting the ignition lock circuit.

[0038] In a preferred embodiment of this utility model, such as Figure 6 As shown, the relay module includes a U2 relay module and a U5 optocoupler. The main control chip is U6, model STC8G108A-SOP8. The 5V voltage regulator module is a DC-DC-5V voltage regulator module. The DC-DC conversion module is U4, which is a DC-DC-12V module. It also includes a deflection limit switch, which is connected to the main control chip.

[0039] This power-off device, through integrated design and intelligent control, significantly improves the reliability and safety of the power-off system. It features rapid response and precise control, employing an STC series microcontroller compatible with the 51 instruction set, increasing processing speed by over 30%. It supports interrupt control, ensuring real-time triggering of the interrupt signal when the elevator is lowered. A 3-second delay power-off mechanism filters out brief contact interference, preventing accidental operation and ensuring safe evacuation for the driver. This power-off device can be directly integrated with anti-theft devices, reducing the number of external components, lowering wiring complexity, and saving space and cost. An optocoupler relay module isolates the main control circuit from the high-voltage circuit, preventing malfunctions caused by electromagnetic interference. This device also features a unified circuit board design, simplifying troubleshooting, and the main control chip supports firmware upgrades.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power-off device for an electric vehicle side ladder, characterized in that: The device includes a power-off housing (1) and its internal control module. The control module includes a relay module, a main control chip, a 5V voltage regulator module, and a DC-DC converter module. The relay module, the 5V voltage regulator module, and the DC-DC converter module are all connected to the main control chip. One side of the relay module is also connected to the anti-theft device. It also includes a battery, which is used to power the control module; The power-off housing (1) includes a lower housing (11) and an upper cover (12). The upper cover (12) is installed on the upper part of the lower housing (11), and a control module is installed inside the lower housing (11).

2. The electric vehicle off-ramping power cut-off device of claim 1, wherein: The lower housing (11) has a mounting plate (111) on one side, and the mounting plate (111) has several mounting holes.

3. The electric vehicle off-ramping power down device of claim 1, wherein: A clearance groove (112) is provided on each side of the lower housing (11).

4. The electric vehicle off-ramping power down device of claim 1, wherein: The inner walls on both sides of the lower housing (11) are also provided with limiting grooves (113), and each limiting groove (113) is also provided with a wiring hole (114).

5. The electric vehicle off-ramping power down device of claim 1, wherein: The lower housing (11) has recessed platforms (115) on all four sides of its inner side.

6. The electric vehicle off-ramping power down device of claim 1, wherein: A limiting strip (116) is also provided on one side inside the lower housing (11).

7. The electric vehicle off-ramping power down device of claim 1, wherein: Two rotating blocks (121) are provided on one side of the upper cover (12), and limiting blocks (122) are provided on both sides of the bottom of the upper cover (12). Two wiring holes are provided on the limiting blocks (122).

8. The electric vehicle off-ramping power down device of claim 1, wherein: The main control chip used is an STC microcontroller chip.

9. The electric vehicle off-ramping power down device of claim 1, wherein: It also includes a staggered limit switch, which is connected to the main control chip.

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