Electrically powered step and vehicle

Abstract

The application provides an electric step and a vehicle, and relates to the technical field of vehicle pedals, and aims to solve the problem that the water accumulation and ice formation on the vehicle pedals in winter affect the safety of passengers getting on and off the vehicle. The electric step comprises a step body, a heating assembly and a detection assembly. The upper surface of the step body is a stepping surface. The side of the step body away from the stepping surface is provided with a containing cavity. The heating assembly is arranged in the containing cavity and is attached to the side of the step body away from the stepping surface. The detection assembly comprises a first temperature detection member and a pressure detection member. The first temperature detection member is arranged on the step body and is used for detecting the ambient temperature. The pressure detection member is arranged on the side away from the stepping surface and is located at the center position and is used for detecting the pressure of the stepping surface. When the first temperature detection member detects that the ambient temperature is lower than a set threshold value and the pressure detection member detects that the pressure is higher than a set first threshold value, the heating assembly is started to heat the stepping surface.

Description

Technical Field

[0001] This invention relates to the field of vehicle pedal technology, and in particular to an electric stepper and vehicle. Background Technology

[0002] Vehicle steps are crucial passageways for passengers getting on and off, and their safety directly impacts passenger safety. Currently, various vehicles typically employ anti-slip treatments on the step surfaces, such as using anti-slip aluminum plates or rubber structures to increase friction. However, in winter, especially during rainy or snowy weather, these anti-slip measures still pose significant safety hazards. Snow and water carried by passengers' shoes can remain on the step surfaces, causing water accumulation. Due to the low ambient temperature, especially in northern regions where the step area's temperature is close to the ambient temperature, the accumulated water freezes quickly, making the step surface extremely slippery. Furthermore, the anti-slip texture can actually make the ice layer more solid, making it difficult to clean, and greatly increasing the risk of passengers slipping and falling when getting on and off the vehicle.

[0003] Therefore, there is an urgent need to provide an electric stepper and vehicle to address the problems existing in the prior art to some extent. Summary of the Invention

[0004] The purpose of this invention is to provide an electric stepper to solve, to some extent, the problem of water accumulation and ice formation on vehicle pedals in winter, which affects the safety of passengers getting on and off the vehicle.

[0005] This invention provides an electric stepper, comprising a stepper body, a heating component, and a detection component. The upper surface of the stepper body is a tread surface, and a receiving cavity is formed on the side of the stepper body opposite to the tread surface. The heating component is disposed within the receiving cavity and is in contact with the side of the stepper body opposite to the tread surface. The detection component includes a first temperature detection element and a pressure detection element. The first temperature detection element is disposed on the stepper body and is used to detect the ambient temperature. The pressure detection element is disposed on the side opposite to the tread surface and is located at the center position, and is used to detect the pressure on the tread surface. When the first temperature detection element detects that the ambient temperature is lower than a set threshold, and the pressure detection element detects that the pressure is higher than the set first threshold, the heating component is activated to heat the tread surface.

[0006] The pressure detection device is further provided with a second threshold. The first threshold is 0.5 kg and the second threshold is 5 kg. When the pressure detected by the pressure detection device exceeds the first threshold but does not exceed the second threshold, the heating component is activated to heat the foot surface. When the pressure detected by the pressure detection device exceeds the second threshold, the heating component is deactivated.

[0007] Specifically, the step surface of the step body is also provided with multiple anti-slip parts, which extend along the length of the step body and are spaced apart along the width of the step body.

[0008] Furthermore, the detection component also includes a humidity detection element, which is spaced apart from the anti-slip part and is used to detect the humidity on the step surface.

[0009] Furthermore, the step body has a receiving groove formed at the position of the anti-slip part, the anti-slip part is embedded in the receiving groove, and the detection component also includes a second temperature detection element, which is integrated in the receiving groove and is used to detect the temperature at the position of the anti-slip part.

[0010] The electric step provided in this application further includes a wiping mechanism, which includes a wiping assembly and a drive assembly. The wiping assembly includes a connecting seat and a wiping strip. The connecting seat is slidably connected to the step body, and the wiping strip is connected to the connecting seat. The wiping strip extends along the length direction of the step body and at least covers the entire length of the anti-slip portion. The drive end of the drive assembly is connected to the connecting seat and can drive the connecting seat to reciprocate along the width direction of the step body.

[0011] Specifically, the connecting seat includes a first sliding part, a second sliding part, and a mounting part; the first sliding part and the second sliding part are disposed opposite to each other at both ends of the mounting part, the mounting part forms a mounting groove, the wiper strip is disposed in the mounting groove, and the first sliding part and the second sliding part are slidably connected to the side of the step body.

[0012] Furthermore, the driving assembly includes a driving member, a first transmission assembly, and a second transmission assembly; the driving member is provided with a first output shaft and a second output shaft, the first output shaft is connected to the first transmission assembly, the first transmission assembly is connected to the first sliding part, the second output shaft is connected to the second transmission assembly, and the second transmission assembly is connected to the second sliding part.

[0013] Furthermore, the first transmission assembly includes a first traction rope, a first guide wheel, and a second guide wheel; the second transmission assembly includes a second traction rope, a third guide wheel, and a fourth guide wheel. The first guide wheel, the second guide wheel, the third guide wheel, and the fourth guide wheel are respectively arranged at the four corners of the step body. The first traction rope passes around the first guide wheel and the second guide wheel and is connected to the first output shaft of the drive component. The portion of the first traction rope located between the first guide wheel and the second guide wheel passes through the first sliding part and is fixedly connected to the first sliding part. The second traction rope passes around the third guide wheel and the fourth guide wheel and is connected to the second output shaft of the drive component. The portion of the second traction rope located between the third guide wheel and the fourth guide wheel passes through the second sliding part and is fixedly connected to the second sliding part.

[0014] Compared with existing technologies, the electric stepper provided by this invention has the following advantages: The electric stepper provided by this invention includes a stepper body, a heating component, and a detection component. The upper surface of the stepper body is a tread surface, and a receiving cavity is formed on the side of the stepper body away from the tread surface. The heating component is arranged in the receiving cavity and is in contact with the side of the stepper body away from the tread surface. The detection component includes a first temperature detection element and a pressure detection element. The first temperature detection element is disposed on the stepper body and is used to detect the ambient temperature. The pressure detection element is disposed on the side away from the tread surface and is located at the center position, and is used to detect the pressure on the tread surface. When the first temperature detection element detects that the ambient temperature is lower than a set threshold, and the pressure detection element detects that the pressure is higher than the set first threshold, the heating component is activated to heat the tread surface.

[0015] Analysis shows that the step body in this application has a plate-like structure and can be made of metal materials, such as aluminum alloy, stainless steel or high-strength engineering plastics, and has a certain structural strength to withstand passengers stepping on it.

[0016] The upper surface of the step body is the foot surface for passengers to step on when getting on and off the vehicle. The side of the step body facing away from the foot surface, i.e., the lower surface, has a receiving cavity. This cavity can be formed by creating a groove on the lower surface of the step body, or by enclosing it with a separate cover below the step body. The receiving cavity houses the heating element and provides some protection against impacts from external objects or water splashes.

[0017] The heating element is housed within a cavity and is attached to the side of the step body facing away from the tread surface. The heating element can be an electric heating film, a resistance heating wire, or a PTC heater. Taking a resistance heating wire as an example, the wire can be fastened to the back of the step body using clips or other fasteners, ensuring good thermal conductivity between them. When the heating element is powered on, heat is transferred to the step body via thermal conduction, thus raising the temperature of the tread surface. The heating element is connected to the vehicle's power supply via a wiring harness, and its on / off state is controlled by a controller.

[0018] The detection component includes a first temperature sensor and a pressure sensor. The first temperature sensor is mounted on the step body and is used to detect the ambient temperature. The first temperature sensor can be positioned anywhere on the step body, but should be placed away from the foot surface to avoid damage from passengers stepping on it. It can accurately sense the ambient air temperature around the step, and the first temperature sensor in this application can be a thermistor or a thermocouple temperature sensor. The first temperature sensor is electrically connected to the controller via a signal line, transmitting the detected ambient temperature signal to the controller in real time.

[0019] The pressure sensor is located on the side of the step body facing away from the tread surface, and is positioned at the center. The pressure sensor detects the pressure on the tread surface and can be a thin-film pressure sensor, a strain gauge pressure sensor, or a piezoelectric pressure sensor. The pressure sensor is fixedly attached to the center area of ​​the lower surface of the step body. When there is snow or ice on the tread surface, the pressure changes, and this pressure value can be detected by the pressure sensor. After receiving the pressure signal, the controller can combine it with the ambient temperature detected by the first temperature sensor to determine whether the heating element needs to be activated.

[0020] Understandably, in practical applications, the controller is electrically connected to the first temperature sensor, pressure sensor, and heating assembly, respectively. The controller can be a microcontroller or the vehicle's existing ECU.

[0021] The controller has preset ambient temperature thresholds, such as -1℃, and a first pressure threshold, such as 0.5kg. During operation, the first temperature sensor continuously monitors the ambient temperature and transmits the data to the controller, while the pressure sensor continuously monitors the pressure on the foot surface and transmits the data to the controller. The controller continuously compares the ambient temperature with the preset thresholds and the pressure value with the first threshold. When the ambient temperature is below the preset threshold (meaning it's low enough to cause water to freeze) and the pressure value is above the first threshold (meaning a passenger is stepping on the steps and their shoes are carrying snow water that may remain on the foot surface), both conditions are met. The controller determines there is a risk of water accumulating and freezing on the foot surface and immediately activates the heating element to heat the foot surface. During heating, the increased surface temperature accelerates the evaporation of any remaining water or melts any existing thin ice, thus keeping the foot surface dry and slip-resistant.

[0022] This application determines whether to activate heating based on both temperature and pressure conditions. This avoids false activation when relying solely on temperature detection (e.g., no heating is needed when the ambient temperature is low but no one is stepping on the vehicle) and missed activation when relying solely on pressure detection (e.g., no heating is needed when someone is stepping on the vehicle but the temperature is high). This achieves on-demand heating, effectively saving energy while ensuring the safety of passengers getting on and off the vehicle.

[0023] In addition, the present invention also provides a vehicle including the above-described electric step.

[0024] The electric step described in this application can be fixedly connected to the lower part of the vehicle door via a mounting bracket, with the step surface facing upwards for passengers to step on when getting on and off the vehicle. All electrical components of the electric step are connected to the vehicle's power system and controller via wiring harnesses. The controller can be set up independently or integrated into the vehicle's overall controller.

[0025] In actual operation, when the vehicle is running in winter rain and snow, the electric steps automatically detect the ambient temperature and step pressure when passengers get on and off the vehicle, and activate the heating function as needed to prevent water from freezing on the step surface. This improves the safety of passengers getting on and off the vehicle in winter and reduces the risk of passengers falling due to slippery steps. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the electric stepper provided in an embodiment of the present invention; Figure 2 This is a schematic diagram showing the position of the detection component in the electric stepper provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the wiping mechanism in an electric stepper provided in an embodiment of the present invention.

[0028] In the diagram: 1-Step body; 101-Anti-slip part; 2-Heating component; 3-First temperature detection element; 4-Second temperature detection element; 5-Pressure detection element; 6-Connecting seat; 601-First sliding part; 602-Second sliding part; 603-Mounting part; 7-Wiper strip; 8-First guide wheel; 9-Second guide wheel; 10-Third guide wheel; 11-Fourth guide wheel; 12-Drive component; 13-First traction rope; 14-Second traction rope. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They 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. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" 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 can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0034] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.

[0035] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0036] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0037] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0038] like Figure 1 Combination Figure 2 As shown, the present invention provides an electric stepper, including a stepper body 1, a heating component 2, and a detection component. The upper surface of the stepper body 1 is a step surface, and a receiving cavity is formed on the side of the stepper body 1 away from the step surface. The heating component 2 is arranged in the receiving cavity and is in contact with the side of the stepper body 1 away from the step surface. The detection component includes a first temperature detection element 3 and a pressure detection element 5. The first temperature detection element 3 is disposed on the stepper body 1 and is used to detect the ambient temperature. The pressure detection element 5 is disposed on the side away from the step surface and is located at the center position, and is used to detect the pressure on the step surface. When the first temperature detection element 3 detects that the ambient temperature is lower than a set threshold, and the pressure detection element 5 detects that the pressure is higher than the set first threshold, the heating component 2 is activated to heat the step surface.

[0039] Compared with existing technologies, the electric stepper provided by this invention has the following advantages: The electric step provided by the present invention has a plate-like structure as the main body 1, which can be made of metal materials such as aluminum alloy, stainless steel or high-strength engineering plastics, and has a certain structural strength to withstand passengers stepping on it.

[0040] The upper surface of the step body 1 is a step surface for passengers to step on when getting on and off the vehicle. The side of the step body 1 facing away from the step surface, i.e., the lower surface, has a receiving cavity. This cavity can be formed by creating a groove on the lower surface of the step body 1, or by enclosing it with a separate cover below the step body 1. The receiving cavity houses the heating component 2 and provides some protection against impacts from external objects or water splashes.

[0041] Heating component 2 is arranged within the receiving cavity and is attached to the side of the step body 1 facing away from the tread surface. Heating component 2 can be in the form of an electric heating film, a resistance heating wire, or a PTC heater. Taking a resistance heating wire as an example, the resistance heating wire can be fastened to the back of the step body 1 using clips or other fasteners, and is positioned close to the back to ensure good thermal conductivity contact between the two. When heating component 2 is energized and heats up, heat is transferred to the step body 1 through thermal conduction, thereby raising the temperature of the tread surface. Heating component 2 is connected to the vehicle's power supply via a wiring harness, and its on / off state is controlled by a controller.

[0042] The detection component includes a first temperature detector 3 and a pressure detector 5. The first temperature detector 3 is disposed on the step body 1 and is used to detect the ambient temperature. The first temperature detector 3 can be disposed at any position on the step body 1, but should be disposed away from the step surface as much as possible to avoid damage from being stepped on by passengers. At the same time, it can accurately sense the ambient air temperature around the step. The first temperature detector 3 in this application can be a thermistor or a thermocouple temperature sensor. The first temperature detector 3 is electrically connected to the controller via a signal line, and transmits the detected ambient temperature signal to the controller in real time.

[0043] The pressure detection element 5 is arranged on the side of the step body 1 away from the tread surface and is located in the center. The pressure detection element 5 is used to detect the pressure on the tread surface, and it can be a thin-film pressure sensor, a strain gauge pressure sensor, or a piezoelectric pressure sensor. The pressure sensor is attached and fixed to the center area of ​​the lower surface of the step body 1. When there is snow or ice on the tread surface, the pressure will change, and this pressure value can be detected by the pressure detection element 5. After receiving the pressure signal, the controller can combine it with the ambient temperature detected by the first temperature detection element 3 to determine whether the heating component 2 needs to be activated.

[0044] Understandably, in practical applications, the controller is electrically connected to the first temperature sensor 3, the pressure sensor 5, and the heating assembly 2, respectively. The controller can be a microcontroller or the vehicle's existing ECU.

[0045] The controller has preset ambient temperature thresholds, such as -1℃, and a first pressure threshold, such as 0.5kg. During operation, the first temperature sensor 3 monitors the ambient temperature in real time and transmits the data to the controller, while the pressure sensor 5 monitors the pressure on the foot surface in real time and transmits the data to the controller. The controller continuously compares the ambient temperature with the preset thresholds and the pressure value with the first threshold. When the ambient temperature is below the preset threshold (meaning it's low enough to cause water to freeze) and the pressure value is above the first threshold (meaning a passenger is stepping on the steps and their shoes are carrying snow water that may remain on the foot surface), both conditions are met. The controller determines there is a risk of water accumulating and freezing on the foot surface and immediately activates the heating component 2 to heat the foot surface. During heating, the foot surface temperature rises, accelerating the evaporation of any remaining water or melting any existing thin ice, thus keeping the foot surface dry and slip-resistant.

[0046] This application determines whether to activate heating based on both temperature and pressure conditions. This avoids false activation when relying solely on temperature detection (e.g., no heating is needed when the ambient temperature is low but no one is stepping on the vehicle) and missed activation when relying solely on pressure detection (e.g., no heating is needed when someone is stepping on the vehicle but the temperature is high). This achieves on-demand heating, effectively saving energy while ensuring the safety of passengers getting on and off the vehicle.

[0047] Optionally, the pressure detection element 5 is further provided with a second threshold. The first threshold is 0.5 kg and the second threshold is 5 kg. When the pressure detected by the pressure detection element 5 exceeds the first threshold but does not exceed the second threshold, the heating component 2 is activated to heat the foot surface. When the pressure of the pressure detection element 5 exceeds the second threshold, the heating component 2 is deactivated.

[0048] The first threshold in this application is 0.5 kg, and the second threshold is 5 kg. The controller pre-stores the first and second thresholds. In actual operation, when the pressure value detected by the pressure detection element 5 exceeds the first threshold but does not exceed the second threshold, it means that the passenger has left the step body 1 and there is snow or ice on the step body 1. The controller then controls the heating component 2 to start and heat the step surface. When the pressure value detected by the pressure detection element 5 exceeds the second threshold, it is determined that a passenger is stepping on the step surface. In this state, the controller can first stop the heating component 2. That is, in actual application scenarios, the process of passengers getting on and off the vehicle will not cause the step to freeze quickly. Instead, ice will form after the passenger has finished getting on or off the vehicle, during the vehicle's driving or parking process. Therefore, when the detected pressure value exceeds the second threshold, it proves that the passenger is getting on or off the vehicle. If the pressure value is still detected after the process is over, it proves that the passenger had snow on the step when getting on or off the vehicle. If the vehicle is parked or in motion for a long time, it is very easy to cause ice to form. Therefore, the controller can control the heating component 2 to start and heat the electric step, thus avoiding the problem of ice forming on the step when it is used again.

[0049] This application sets a second threshold to actively shut off the heating when the pressure is too high, avoiding continuous heating during passenger boarding and alighting, thus further improving safety and reducing energy consumption.

[0050] Optionally, such as Figure 1 Combination Figure 2 As shown, multiple anti-slip parts 101 are arranged on the step surface of the step body 1. The multiple anti-slip parts 101 extend along the length direction of the step body 1 and are spaced apart along the width direction of the step body 1.

[0051] The anti-slip part 101 in this application can be an anti-slip strip protruding from the surface of the step, with a triangular, trapezoidal, or semi-circular cross-section, and made of rubber, stainless steel, or aluminum alloy. The anti-slip strip is fixed to the step surface by welding, bolting, or embedding. Multiple anti-slip strips are arranged at intervals along the width of the step, with a spacing of 20mm to 50mm between adjacent anti-slip strips. The length direction of the anti-slip strip is consistent with the direction of passenger travel when getting on and off the vehicle, so that when passengers step on it, a large frictional force is generated between the sole of their shoes and the anti-slip strip, effectively preventing passengers from slipping.

[0052] As another specific implementation, the anti-slip part 101 can also adopt anti-slip ridges formed directly on the step surface, for example, by stamping or casting to form multiple raised ridges extending along the length direction on the step surface.

[0053] In actual use, when a passenger steps on the foot surface, the sole of the shoe comes into contact with the anti-slip part 101. The raised structure of the anti-slip part 101 is embedded in the sole pattern, which significantly increases the friction. Even if there is a small amount of water film on the foot surface, the anti-slip part 101 can still provide a reliable anti-slip effect.

[0054] Optionally, the detection assembly also includes a humidity detection element, which is spaced apart from the anti-slip part 101 and is used to detect the humidity on the step surface.

[0055] As a specific implementation method, the humidity detection device can be a resistive humidity sensor or a capacitive humidity sensor. Taking a capacitive humidity sensor as an example, it utilizes the principle that the dielectric constant of a humidity-sensitive capacitor changes with the ambient humidity, and calculates the humidity value by detecting changes in capacitance. The humidity detection device is installed in a mounting hole opened on the foot surface, with its sensing surface flush with or slightly lower than the foot surface, and located in the interval area between two adjacent anti-slip parts 101 to avoid being blocked by the anti-slip parts 101 and affecting the detection accuracy.

[0056] In actual operation, the humidity detection device monitors the humidity value of the surface being stepped on in real time and transmits it to the controller. The controller will only start the heating component 2 when all three conditions are met simultaneously: the ambient temperature is below the set threshold, the pressure value is above the first threshold, and the humidity value is above the set humidity threshold.

[0057] Therefore, by adding humidity detection conditions, this application can more accurately determine whether there is water or snow accumulation on the tramp surface. When the ambient temperature is low but the tramp surface is dry, there is no need to heat it even if someone walks on it, thus further avoiding unnecessary energy consumption.

[0058] Optionally, the step body 1 has a receiving groove formed at the position corresponding to the anti-slip part 101, and the anti-slip part 101 is embedded in the receiving groove. The detection component also includes a second temperature detection element 4, which is integrated in the receiving groove and is used to detect the temperature at the position of the anti-slip part 101.

[0059] The receiving groove in this application is a recessed groove formed by indentation on the foot surface, the shape and size of which match the anti-slip part 101. The anti-slip part 101 is embedded in the receiving groove, and the upper surface of the anti-slip part 101 is slightly higher than or flush with the foot surface. The second temperature sensing element 4 can be a surface-mount thermistor, which is attached to the bottom wall of the receiving groove, located below the anti-slip part 101. The second temperature sensing element 4 is electrically connected to the controller via a signal line.

[0060] During actual operation, the second temperature sensor 4 monitors the temperature of the anti-slip part 101 in real time and transmits the data to the controller. Based on the temperature value fed back by the second temperature sensor 4, the controller performs closed-loop control of the heating power of the heating component 2. When the temperature at the anti-slip part 101 reaches a preset target temperature, such as 50°C, the controller reduces the power of the heating component 2 or uses intermittent heating to maintain a constant temperature at the anti-slip part 101. This prevents damage to the anti-slip part 101 caused by excessively high surface temperature and also avoids energy waste.

[0061] In addition, the second temperature detection element 4 can also serve as an overheat protection device. When the temperature exceeds the safety threshold, such as 60°C, the controller will forcibly shut down the heating component 2 to prevent safety issues caused by overheating of the steps due to malfunction.

[0062] Optionally, such as Figure 3 As shown, the electric stepper provided in this application also includes a wiping mechanism, which includes a wiping assembly and a drive assembly. The wiping assembly includes a connecting seat 6 and a wiping strip 7. The connecting seat 6 is slidably connected to the step body 1, and the wiping strip 7 is connected to the connecting seat 6. The wiping strip 7 extends along the length direction of the step body 1 and at least covers the entire length of the anti-slip part 101. The drive end of the drive assembly is connected to the connecting seat 6 and can drive the connecting seat 6 to reciprocate along the width direction of the step body 1.

[0063] The wiper assembly in this application includes a connecting seat 6 and a wiper strip 7. The connecting seat 6 is slidably connected to the step body 1. Specifically, the connecting seat 6 spans across both sides of the step body 1 in the width direction, and its two ends are slidably engaged with the left and right edges of the step body 1, respectively.

[0064] The wiper strip 7 is connected to the connecting seat 6. The wiper strip 7 extends along the length of the step body 1 and covers at least the entire length of the anti-slip part 101. The wiper strip 7 can be made of rubber or silicone, has a certain degree of elasticity and wear resistance, and its lower edge is in close contact with the step surface.

[0065] The drive end of the drive assembly is connected to the connecting seat 6 and can drive the connecting seat 6 to reciprocate along the width direction of the step body 1. The drive assembly can take the form of an electric push rod, a lead screw and nut mechanism, etc.

[0066] In actual operation, when it is necessary to remove water from the tread surface, such as after snow or ice melts on the tread body 1, the controller activates the drive assembly. The drive assembly moves the connecting seat 6 along the width of the tread body 1 from one side of the tread to the other. During the movement of the connecting seat 6, the lower edge of the wiper blade 7 adheres closely to the tread surface and scrapes across the entire surface, pushing the water, mud, or melted ice water to one side edge of the tread and expelling it outside the tread. When the connecting seat 6 reaches the extreme position on the other side of the tread, the controller can control the drive assembly to reverse the drive, returning the wiper blade 7 to its initial position, completing one wiping cycle. The wiper blade 7 covers at least the entire length of the anti-slip part 101, ensuring that water in the anti-slip part 101 area is scraped away.

[0067] This application incorporates a water-scraping mechanism that can actively remove water from the foot surface after the heating component 2 is activated or during the heating process, accelerating the drying of the foot surface and further ensuring passenger safety when getting on and off the vehicle. At the same time, it prevents the melted water from refreezing.

[0068] Optionally, such as Figure 3 As shown, the connecting seat 6 includes a first sliding part 601, a second sliding part 602, and a mounting part 603; the first sliding part 601 and the second sliding part 602 are disposed opposite to each other at both ends of the mounting part 603, the mounting part 603 is formed with a mounting groove, the wiper strip 7 is disposed in the mounting groove, and the first sliding part 601 and the second sliding part 602 are slidably connected to the side of the step body 1.

[0069] In this application, the first sliding part 601 and the second sliding part 602 are disposed opposite to each other at both ends of the mounting part 603, that is, the first sliding part 601 is located on one edge of the step body 1 in the width direction, and the second sliding part 602 is located on the other edge of the step body 1 in the width direction. The mounting part 603 connects the first sliding part 601 and the second sliding part 602, and has an overall U-shaped or door-shaped structure, spanning across the top of the step body 1.

[0070] The mounting section 603 has a mounting groove that extends along the length of the step body 1, and the wiper strip 7 is disposed in the mounting groove. Specifically, the upper end of the wiper strip 7 is embedded in the mounting groove and fixed by snap-fit ​​or adhesive, and the lower end of the wiper strip 7 extends out of the mounting groove and is in close contact with the step surface.

[0071] The first sliding part 601 and the second sliding part 602 are slidably connected to the side of the step body 1. In one specific embodiment, the left and right sides of the step body 1 are respectively provided with slide rails extending in the width direction, and the first sliding part 601 and the second sliding part 602 are respectively provided with slide grooves that cooperate with the slide rails. The first sliding part 601 and the second sliding part 602 achieve slidable connection with the step body 1 through the cooperation of the slide grooves with the slide rails.

[0072] As another specific implementation, guide grooves extending in the width direction are respectively opened on the left and right sides of the step body 1, and guide protrusions that cooperate with the guide grooves are respectively provided on the first sliding part 601 and the second sliding part 602.

[0073] In actual operation, when the drive assembly moves the connecting seat 6, the first sliding part 601 and the second sliding part 602 slide synchronously on the slide rails on both sides of the step body 1, ensuring that the connecting seat 6 moves smoothly along the width direction without tilting or jamming. The mounting part 603 drives the wiper strip 7 to move synchronously, realizing the wiping operation on the step surface.

[0074] Optionally, such as Figure 3 As shown, the drive assembly includes a drive member 12, a first transmission assembly, and a second transmission assembly. The drive member 12 is provided with a first output shaft and a second output shaft. The first output shaft is connected to the first transmission assembly, the first transmission assembly is connected to the first sliding part 601, the second output shaft is connected to the second transmission assembly, and the second transmission assembly is connected to the second sliding part 602.

[0075] The drive component 12 in this application is provided with a first output shaft and a second output shaft. The drive component 12 can be a dual-output shaft motor, that is, one end of the motor's output shaft is the first output shaft, and the other end's output shaft is the second output shaft, with the two output shafts rotating synchronously and in the same direction. As another embodiment, the drive component 12 can also be two independent motors, which respectively provide driving force to the first output shaft and the second output shaft.

[0076] The first output shaft is connected to the first transmission assembly, and the first transmission assembly is connected to the first sliding part 601. The second output shaft is connected to the second transmission assembly, and the second transmission assembly is connected to the second sliding part 602.

[0077] In actual operation, after the drive component 12 is activated, the first output shaft and the second output shaft rotate synchronously, driving the first sliding part 601 and the second sliding part 602 to move synchronously through the first transmission assembly and the second transmission assembly, respectively. Since the first sliding part 601 and the second sliding part 602 are located on both sides of the step body 1, driving the sliding parts on both sides through the dual output shafts can ensure that the two ends of the connecting seat 6 are subjected to balanced force, and the movement process is smooth and stable, avoiding the misalignment or jamming of the connecting seat 6 caused by unilateral drive.

[0078] Optionally, such as Figure 3 As shown, the first transmission assembly includes a first traction rope 13, a first guide wheel 8, and a second guide wheel 9. The second transmission assembly includes a second traction rope 14, a third guide wheel 10, and a fourth guide wheel 11. The first guide wheel 8, the second guide wheel 9, the third guide wheel 10, and the fourth guide wheel 11 are respectively arranged at the four corners of the step body 1. The first traction rope 13 passes around the first guide wheel 8 and the second guide wheel 9 and is connected to the first output shaft of the drive member 12. The portion of the first traction rope 13 located between the first guide wheel 8 and the second guide wheel 9 passes through the first sliding part 601 and is fixedly connected to the first sliding part 601. The second traction rope 14 passes around the third guide wheel 10 and the fourth guide wheel 11 and is connected to the second output shaft of the drive member 12. The portion of the second traction rope 14 located between the third guide wheel 10 and the fourth guide wheel 11 passes through the second sliding part 602 and is fixedly connected to the second sliding part 602.

[0079] In this application, four guide wheels are respectively arranged at the four corners of the step body 1. The first traction rope 13 passes around the first guide wheel 8 and the second guide wheel 9, and its two ends are respectively connected to the first output shaft of the drive component 12, such that the two ends of the first traction rope 13 are respectively wound in two winding grooves provided on the first output shaft. The portion of the first traction rope 13 located between the first guide wheel 8 and the second guide wheel 9 passes through the first sliding part 601 and is fixedly connected to the first sliding part 601.

[0080] The second traction rope 14 passes over the third guide wheel 10 and the fourth guide wheel 11, and its two ends are respectively connected to the second output shaft of the drive member 12. The portion of the second traction rope 14 located between the third guide wheel 10 and the fourth guide wheel 11 passes through the second sliding part 602 and is fixedly connected to the second sliding part 602.

[0081] In actual operation, after the drive component 12 is started, the first output shaft and the second output shaft rotate synchronously in the forward direction. The first output shaft winds up one end of the first traction rope 13 and releases the other end. The first traction rope 13 drives the first sliding part 601 to move in the forward direction along the step width. At the same time, the second output shaft winds up one end of the second traction rope 14 and releases the other end. The second traction rope 14 drives the second sliding part 602 to move synchronously in the forward direction.

[0082] When reverse movement is required, the drive component 12 rotates in the opposite direction, and the first and second output shafts rewind and release the traction rope in the opposite direction, driving the first sliding part 601 and the second sliding part 602 to move in the opposite direction. Through the cooperation of the traction rope and the guide wheel, long-distance, low-cost, and smooth transmission is achieved, and the traction rope is flexible and can adapt to a certain degree of installation deviation.

[0083] In addition, this application also provides a vehicle including the above-mentioned electric steps.

[0084] The electric step in this application can be fixedly connected to the lower part of the vehicle door via a mounting bracket, with the step body 1 facing upwards for passengers to step on when getting on and off the vehicle. All electrical components of the electric step are connected to the vehicle's power system and controller via wiring harnesses. The controller can be set up independently or integrated into the vehicle's overall controller.

[0085] In actual operation, when the vehicle is running in winter rain and snow, the electric steps automatically detect the ambient temperature and step pressure when passengers get on and off the vehicle, and activate the heating function as needed to prevent water from freezing on the step surface. This improves the safety of passengers getting on and off the vehicle in winter and reduces the risk of passengers falling due to slippery steps.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric stepper, characterized in that, Includes the main step body, heating components, and detection components; The upper surface of the step body is a step surface, and a receiving cavity is formed on the side of the step body away from the step surface. The heating component is arranged in the receiving cavity and is in contact with the side of the step body away from the step surface. The detection component includes a first temperature detection element and a pressure detection element. The first temperature detection element is disposed on the step body and is used to detect the ambient temperature. The pressure detection element is arranged on the side away from the step surface and is located in the center position, and is used to detect the pressure on the step surface. When the first temperature sensor detects that the ambient temperature is lower than a set threshold, and the pressure sensor detects that the pressure is higher than a set first threshold, the heating component is activated to heat the foot surface.

2. The electric stepper according to claim 1, characterized in that, The pressure detection device is also provided with a second threshold. The first threshold is 0.5 kg and the second threshold is 5 kg. When the pressure detected by the pressure detection device exceeds the first threshold but does not exceed the second threshold, the heating component is activated to heat the foot surface. When the pressure of the pressure detection element exceeds the second threshold, the heating component is turned off.

3. The electric stepper according to claim 1, characterized in that, The step surface is also provided with multiple anti-slip parts, which extend along the length of the step body and are spaced apart along the width of the step body.

4. The electric stepper according to claim 3, characterized in that, The detection component also includes a humidity detection element, which is spaced apart from the anti-slip part and is used to detect the humidity on the step surface.

5. The electric stepper according to claim 3, characterized in that, The step body has a receiving groove corresponding to the position of the anti-slip part, and the anti-slip part is embedded in the receiving groove. The detection component also includes a second temperature detection element, which is integrated in the receiving groove and is used to detect the temperature at the position of the anti-slip part.

6. The electric stepper according to claim 3, characterized in that, It also includes a wiping mechanism, which comprises a wiping assembly and a drive assembly; The wiper assembly includes a connecting seat and a wiper strip. The connecting seat is slidably connected to the step body, and the wiper strip is connected to the connecting seat. The wiper strip extends along the length of the step body and covers at least the entire length of the anti-slip portion. The driving end of the driving component is connected to the connecting seat and can drive the connecting seat to reciprocate along the width direction of the step body.

7. The electric stepper according to claim 6, characterized in that, The connecting seat includes a first sliding part, a second sliding part, and a mounting part; The first sliding part and the second sliding part are disposed opposite to each other at both ends of the mounting part, the mounting part is formed with a mounting groove, the wiper strip is disposed in the mounting groove, and the first sliding part and the second sliding part are slidably connected to the side of the step body.

8. The electric stepper according to claim 7, characterized in that, The drive assembly includes a drive component, a first transmission assembly, and a second transmission assembly; The driving component is provided with a first output shaft and a second output shaft. The first output shaft is connected to the first transmission assembly, the first transmission assembly is connected to the first sliding part, the second output shaft is connected to the second transmission assembly, and the second transmission assembly is connected to the second sliding part.

9. The electric stepper according to claim 8, characterized in that, The first transmission assembly includes a first traction rope, a first guide wheel, and a second guide wheel. The second transmission assembly includes a second traction rope, a third guide wheel, and a fourth guide wheel. The first guide wheel, the second guide wheel, the third guide wheel, and the fourth guide wheel are respectively arranged at the four corners of the step body. The first traction rope passes around the first guide wheel and the second guide wheel and is connected to the first output shaft of the drive component. The portion of the first traction rope located between the first guide wheel and the second guide wheel passes through the first sliding part and is fixedly connected to the first sliding part. The second traction rope passes around the third guide wheel and the fourth guide wheel and is connected to the second output shaft of the drive member. The portion of the second traction rope located between the third guide wheel and the fourth guide wheel passes through the second sliding part and is fixedly connected to the second sliding part.

10. A vehicle, characterized in that, The electric stepper includes any one of claims 1-9.

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