Electric roller skate

Abstract

The utility model provides an electric roller skate capable of freely walking on a slope, which comprises a chassis, the chassis comprises a front chassis and a rear chassis, and a cavity is arranged in the rear chassis; the walking device comprises a motor, a rear wheel walking assembly installed on the lower portion of the rear chassis and a front wheel walking assembly installed on the lower portion of the front chassis, and the motor drives the front wheel walking assembly and / or the rear wheel walking assembly to rotate; the electric control device comprises a battery pack and an electric control board which are installed in the cavity, the battery pack supplies energy to the motor, and the electric control board is in communication connection with the motor.

Description

Technical Field

[0001] The utility model belongs to the field of sports equipment, and particularly relates to an electric roller skate. Background Art

[0002] The existing roller skates include a chassis, rear wheels located below the chassis, and a shoe body located above the chassis. After a user puts on the roller skates, they need to rely on their own foot strength to push the roller skates forward. However, for a slope with a relatively steep gradient, it is difficult for the user to walk on the slope wearing the roller skates only by foot strength. Content of the Utility Model

[0003] In view of the above defects or deficiencies of the prior art, the utility model provides an electric roller skate that can walk freely on a slope.

[0004] The electric roller skate provided by the utility model includes: a chassis, the chassis includes a front chassis and a rear chassis, and a cavity is provided in the rear chassis; a traveling device, the traveling device includes a motor, a rear wheel traveling component installed at the lower part of the rear chassis, and a front wheel traveling component installed at the lower part of the front chassis, and the motor drives the front wheel traveling component and / or the rear wheel traveling component to rotate; and an electronic control device, the electronic control device includes a battery pack and an electronic control board installed in the cavity, the battery pack supplies energy to the motor, and the electronic control board is communicatively connected to the motor.

[0005] Optionally, the rear chassis is made of a heat-conducting material, both sides of the electronic control board are a low heat-conducting surface and a high heat-conducting surface respectively, low-power electrical components are installed on the low heat-conducting surface, high-power electrical components are installed on the high heat-conducting surface, and the high heat-conducting surface of the electronic control board and the battery pack both face the inner wall of the cavity.

[0006] Optionally, a heat-conducting silicone grease is provided between the high heat-conducting surface of the electronic control board and the inner wall of the cavity, and a heat-conducting silicone grease is provided between the battery pack and the inner wall of the cavity.

[0007] Optionally, the battery pack and the electronic control board are stacked in the up-down direction of the rear chassis, a substrate is installed in the cavity, the battery pack is installed on one side in the thickness direction of the substrate, the electronic control board is installed on the other side in the thickness direction of the substrate, and the substrate is installed in the cavity.

[0008] Optionally, the rear chassis includes a rear chassis body and a cover plate, a cavity is provided on the rear chassis body, the opening of the cavity faces upward or downward, and the cover plate covers the cavity to form the cavity.

[0009] Optionally, the rear chassis includes a rear chassis body and a side cover mounted on the side of the rear chassis body. A transmission cavity is formed between the side cover and the rear chassis body. The motor is mounted on the side of the side cover. A transmission component is provided between the motor and the rear-wheel traveling assembly. The transmission component is disposed in the transmission cavity. The rear-wheel traveling assembly is mounted on the lower part of the rear chassis body.

[0010] Optionally, the motor is located in the middle of the side cover. A single set of the rear-wheel traveling assembly includes a rear axle mounted on the rear chassis body and rear wheels mounted at both ends of the rear axle. The transmission component includes a transmission shaft mounted on the rear chassis body, a transmission gear mounted at the end of the transmission shaft, a driving gear mounted on the output shaft of the motor, and a driven gear mounted on the rear axle. The driving gear meshes with the driven gear through the transmission gear. The transmission shaft, the driving gear, the transmission gear, and the driven gear are mounted in the transmission cavity.

[0011] Optionally, a shaft seat extending outward in the width direction of the rear chassis is provided on the side of the rear chassis body. A shaft hole for the rear axle to extend through is provided on the shaft seat. A rear shoe body is mounted above the rear chassis. The rear shoe body is made of plastic material. The rear shoe body is mounted on the shaft seat through fasteners.

[0012] Optionally, a protective plate is provided on the side cover below the motor. The protective plate is provided with heat dissipation holes which are inclined in the up and down direction.

[0013] Optionally, a rear shoe body is mounted above the rear chassis. The rear shoe body is provided with a protective cover surrounding the upper part and the side part of the motor.

[0014] Optionally, the side cover is located outside the rear chassis body. An indicator light for communicating with the electronic control board is provided on the inner side of the rear chassis body. The indicator light is used to display the working state of the electric roller skates.

[0015] Optionally, the electric roller skates further include a sensor communicating with the electronic control board. The electronic control board controls the rotation speed of the motor according to the data collected by the sensor; or the electric roller skates further include a remote control communicating with the electronic control board. The electronic control board controls the rotation speed of the motor according to the instructions issued by the remote control.

[0016] For the electric roller skates provided by the present utility model, by setting the motor to drive the rear-wheel traveling assembly to rotate, the user can enjoy the fun of roller skating with less effort. In addition, by encapsulating the battery pack and the electronic control board in the cavity of the rear chassis, the structural layout of the electric roller skates is very compact. Description of the Drawings

[0017] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the description, and together with the following specific embodiments are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the accompanying drawings:

[0018] Figure 1 is a perspective view of the electric roller skates;

[0019] Figure 2 is a perspective view of the electric roller skates with the rear shoe body removed;

[0020] Figure 3 is Figure 2 an exploded view of the electric roller skates shown;

[0021] Figure 4 is Figure 2 a perspective view of the electric roller skates shown with the cover plate removed;

[0022] Figure 5 is an assembly drawing of the electronic control board, the substrate and the battery pack;

[0023] Figure 6 is a perspective view of the rear chassis and part of the walking device;

[0024] Figure 7 is Figure 6 a perspective view of the above with the side cover removed. Specific Embodiments

[0025] The following details the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and understanding the present utility model and are not used to limit the present utility model.

[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, rear, etc.) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then such directional indications will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second", etc. in the implementation of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various implementations can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] like Figures 1 to 6 As shown, the electric roller skates provided in this embodiment include: a chassis, the chassis includes a front chassis 3 and a rear chassis 1, and a cavity is provided in the rear chassis 1; a walking device, the walking device includes a motor 21, a rear wheel walking assembly installed at the lower part of the rear chassis 1, and a front wheel walking assembly 4 installed at the lower part of the front chassis 3, and the motor 21 drives the front wheel walking assembly 4 and / or the rear wheel walking assembly 21 to rotate; and an electric control device, the electric control device includes a battery pack 5 and an electric control board 6 installed in the cavity, the battery pack 5 supplies energy to the motor 21, and the electric control board 6 is connected to the motor 21 for communication. The electric control board 6 sends a speed adjustment instruction to the motor 21; the speed of the motor 21 can be fed back to the electric control board 6 directly, or it can be fed back to the electric control board 6 through other speed sensors.

[0029] The electric roller skates provided in this embodiment drive the rear wheel walking assembly 23 to rotate by setting a motor 21, so that the user can enjoy the fun of roller skating with less effort. In addition, the battery pack 5 and the electric control board 6 are encapsulated in the cavity of the rear chassis 1 in this embodiment, so that the electric roller skates have a very compact structure.

[0030] The front chassis 3 and the rear chassis 1 can be rotatably connected. The front chassis 3 is used to support the user's forefoot, and the rear chassis 1 is used to support the user's foot except the forefoot. The rear chassis is set to be rotatably connected relative to the front chassis, so that when the user's heel is lifted off the ground, the user's forefoot can still contact the ground, so that the user can walk freely while wearing electric roller skates. Of course, the front chassis 3 and the rear chassis 1 can also be connected as one piece, that is, the front chassis and the rear chassis are manufactured as one piece; or they can be manufactured separately but assembled into a whole.

[0031] The front wheel travel assembly 4 includes a front wheel bracket installed below the front chassis, a front axle rotatably mounted on the front wheel bracket, and front wheels installed at both ends of the front axle, that is, there are two front wheels. Of course, the front wheel travel assembly can also include a front wheel bracket and a front wheel, and the front wheel is rotatably connected to the front wheel bracket, that is, there is only one front wheel. The front axle and the front wheel bracket are provided with a ratchet structure, so that the front wheel can only rotate in one direction, that is, the front chassis can only move forward and cannot move backward.

[0032] The rear chassis 1 is made of a heat-conducting material. The two sides of the electronic control board 6 in the thickness direction are respectively a low heat-conducting surface and a high heat-conducting surface, that is, one side of the electronic control board 6 in the thickness direction is the high heat-conducting surface, and the other side in the thickness direction is the low heat-conducting surface. Low-power electrical components are installed on the low heat-conducting surface, and high-power electrical components are installed on the high heat-conducting surface. The high heat-conducting surface of the electronic control board 6 and the battery pack 5 both face the inner wall of the cavity. The high heat-conducting material is a metal material, such as aluminum alloy. Of course, the high heat-conducting material can also be other high-strength and good heat-conducting polymer materials. The low-power devices include a microcontroller and a communication module, and the high-power devices include a battery management module and the MOS tubes for driving the motor.

[0033] For the electric roller skates provided in this embodiment, by making the high heat-conducting surface of the electronic control board 6 and the battery face the inner wall of the cavity, and making the rear chassis 1 made of a high heat-conducting material, the heat generated during the operation of the electronic control board 6 and the battery pack 5 can be quickly dissipated through the rear chassis 1, so as to ensure that the two are not easily overheated and can thus work stably.

[0034] Thermal grease can be provided only between the high heat-conducting surface of the electronic control board 6 and the inner wall of the cavity, or only between the battery pack 5 and the inner wall of the cavity, or thermal grease can be provided both between the high heat-conducting surface of the electronic control board 6 and the inner wall of the cavity and between the battery pack 5 and the inner wall of the cavity. By providing thermal grease between the high heat-conducting surface of the electronic control board 6 and the inner wall of the cavity, and between the battery pack 5 and the inner wall of the cavity, it is beneficial to dissipate the heat generated by the electronic control board and the battery pack during operation more quickly through the rear chassis 1.

[0035] The battery pack 5 and the electronic control board 6 are stacked in the cavity along the up-and-down direction of the rear chassis 1. A substrate 7 is provided in the cavity. The battery pack 5 is installed on one side of the substrate 7 in the thickness direction, and the electronic control board 6 is installed on the other side of the substrate 7 in the thickness direction. The substrate 7 is installed in the cavity of the rear chassis 1, so as to facilitate the integration of the battery pack 5 and the electronic control board 6. Screw holes are provided at both ends of the cavity along the length direction of the rear chassis 1. Through holes are provided at both ends of the substrate 7 in the length direction. The substrate 7 is fixedly installed inside the cavity of the rear chassis 1 by screws passing through the through holes and the screw holes. A charging interface electrically connected to the battery pack is provided at the tail of the rear chassis 1.

[0036] The rear chassis 1 includes a rear chassis body 11 and a cover plate 12. A cavity 111 is provided on the rear chassis body 11. The cover plate 12 seals the cavity 111 to form a cavity body, and the opening of the cavity 111 faces upward. The opening of the cavity 111 on the rear chassis body 11 faces upward, that is, the opening of the cavity 111 faces away from the ground. A rear shoe body 8 is provided above the rear chassis 1. In this way, when the electronic control board 6 or the battery pack 5 fails, first disassemble the rear shoe body 8, and then disassemble the cover plate 12 to facilitate the repair or replacement of the electronic control board 6 or the battery pack 5. Of course, the opening of the cavity of the rear chassis body 11 can also face downward. In this way, when the electronic control board or the battery pack fails, only the cover plate needs to be directly disassembled to repair or replace the electronic control board or the battery pack. The latter method places higher requirements on the sealing performance between the cover plate and the rear chassis body because in the latter method, dust is more likely to enter the cavity body. Although the former method is more troublesome to repair or replace the electronic control board 6 or the battery pack 5, since there is no need to avoid the cover plate, it is beneficial to arrange more than two sets of rear wheel walking assemblies at the lower part of the rear chassis to improve the obstacle-crossing performance of the electric roller skates. A shaft seat 15 extending outward in the width direction is provided on the side of the rear chassis body 11, and the shaft seat 15 is provided with a shaft hole for the rear shaft 231 to extend out. The rear shoe body 8 is made of plastic material, and the rear shoe body 8 is installed on the shaft seat 15 through fasteners, and the fasteners are, for example, screws.

[0037] The motor can drive only the front wheel walking assembly to rotate, or only the rear wheel walking assembly to rotate, or it can also drive both the front wheel walking assembly and the rear wheel walking assembly to rotate. The number of motors can be 1 or more than 2. The following is the way that the motor drives the rear wheel walking assembly to rotate. It can be set to drive only on the rear wheel walking assembly, or an additional motor can be added to drive on the front wheel walking assembly. Specifically, the rear chassis 1 includes a rear chassis body 11 and a side cover 13 installed on the side of the rear chassis body 11. A transmission cavity is formed between the side cover 13 and the rear chassis body 11. The motor 21 is installed on the side of the side cover 13. A transmission component 22 is provided between the motor 21 and the rear wheel walking assembly 23. The transmission component 22 is arranged in the transmission cavity, and the rear wheel walking assembly 23 is installed at the lower part of the rear chassis body 11.

[0038] The motor 21 is located in the middle of the side cover 13. The single-group rear-wheel traveling assembly 23 includes a rear axle 231 and rear wheels 232 mounted at both ends of the rear axle 231. The transmission assembly 22 includes a transmission shaft 221, a transmission gear 222 mounted at the end of the transmission shaft, a driving gear 223 mounted on the output shaft of the motor 21, and a driven gear 224 mounted on the rear axle 231. The driving gear 223 meshes with the driven gear 224 through the transmission gear 222. The transmission shaft 221, the driving gear 223, the transmission gear 222, and the driven gear 224 are located in the transmission cavity. In this embodiment, there are 4 groups of rear-wheel traveling assemblies, and the motor drives the 4 groups of rear-wheel traveling assemblies to rotate simultaneously through the transmission assembly. Of course, the motor can also drive only 1 group or 2 groups of rear-wheel traveling assemblies to rotate through the transmission assembly. The transmission assembly can only play a transmission role. In this case, the deceleration assembly needs to be built into the motor. Of course, the transmission assembly can also play both a transmission and a deceleration role. In this case, the motor does not need to have a built-in deceleration assembly. In addition, a hub motor can also be used for the motor, especially when there is only one front wheel in the front-wheel traveling assembly or only one rear wheel in one of the groups of rear-wheel assemblies.

[0039] Shaft seats 15 are provided on both sides in the width direction of the rear chassis 1. The shaft seats 15 are provided with shaft holes for the rear axle 231 to extend out. Swing arms 16 extending upward are provided on the shaft seats 15 on both sides of the front part of the rear chassis 1, and a first shaft hole is provided in the upper part of the swing arm 16. The shaft seats 15 on both sides of the front part of the rear chassis are for the rear axle 231 of the first rear-wheel traveling assembly to extend out. The first rear-wheel traveling assembly is the rear-wheel traveling assembly closest to the front chassis. Two groups of rotating seats 31 are provided at the rear part of the front chassis 3. Each group of rotating seats 31 has two. A single swing arm 16 is located between the two rotating seats 31, and a second shaft hole is provided in the rotating seat 31. A pin shaft 32 is provided through the first shaft hole and the second shaft hole. The swing arm 16 and the rotating seat 31 are rotatably connected relative to the pin shaft 32. The rotational connection between the rear chassis 1 and the front chassis 3 is realized through the rotational connection between the swing arm 16 and the rotating seat 31. The swing arm 16 is provided with a convex platform for supporting the lower surface of the front chassis near the front chassis 3 to prevent the front chassis 3 from rotating downward relative to the rear chassis 1, resulting in the front chassis 3 dropping. Of course, a ratchet structure can also be provided between the swing arm 16 and the rotating seat 31 so that the front chassis 3 can only rotate relative to the rear chassis 1 in one direction.

[0040] A protective plate 131 is provided on the side cover 13 and is located below the motor 21. The protective plate 131 protrudes from the side cover 13 along the width direction of the rear chassis 1. Heat dissipation holes 132 are provided on the protective plate 131, and the heat dissipation holes 132 are inclined along the up and down direction of the rear chassis 1. A rear shoe body 8 is installed above the rear chassis 1, and a protective cover 81 surrounding the upper part and the side part of the motor 21 is provided on the side of the rear shoe body 8. The side part of the motor 21 refers to the side part on one side of the motor axis. The rear shoe body 8 includes a rear sole 81 and a first lacing assembly 82 located above the rear shoe body 81. A front shoe body 9 is provided above the front chassis 3, and the front and rear shoe bodies include a front sole 91 and a second lacing assembly 92 located above the front shoe body.

[0041] The protective plate 131 and the protective cover 81 can prevent foreign objects from damaging the motor. By further providing heat dissipation holes on the protective plate 131, it is beneficial to dissipate the heat generated during the operation of the motor 21 and prevent the motor 21 from burning out. The heat dissipation holes 132 are inclined, which can reduce the amount of dust entering the motor through the heat dissipation holes.

[0042] The inner side of the rear chassis body 11 is the side where the two electric roller skates are close to each other, and the outer side of the rear chassis body 11 is the side where the two electric roller skates are far from each other. For the left electric roller skate, the left side is the outer side and the right side is the inner side. For the right electric roller skate, the right side is the outer side and the left side is the inner side. When the user kicks the electric roller skate backward, the electric roller skate generally tilts inward. By arranging the motor on the outer side of the rear chassis, it is not easy for the user to damage the motor when kicking the roller skate.

[0043] The side cover 13 is located on the outer side of the rear chassis body 11, and an indicator light 14 communicatively connected to the electronic control board 6 is provided on the inner side of the rear chassis body 11. The indicator light 14 is used to display the status of the electric roller skate. The status of the electric roller skate includes power on, Bluetooth pairing, locking, unlocking, abnormality, charging, and power off. Among them, locking means that the machine is normal but not working, unlocking means that the machine is controlled by an external sensor and runs, and the abnormal status includes Bluetooth connection disconnection, overheating, low battery, etc.

[0044] For the electric roller skate provided in this embodiment, a detachable cover plate is provided on the upper or lower part of the rear chassis to arrange a battery pack and an electronic control board in the rear chassis; a detachable side cover is provided on the side part of the rear chassis to arrange a transmission component and a motor on the side part of the rear chassis, which not only makes full use of the space of the rear chassis, but also has a very compact overall layout and is convenient for maintenance.

[0045] There are multiple sets of rear-wheel walking components, including a first rear-wheel walking component, a third rear-wheel walking component, a fourth rear-wheel walking component, and a second rear-wheel walking component arranged in sequence in the front-back direction of the rear chassis 1. The first rear-wheel walking component and the third rear-wheel walking component are located in front of the motor 21, and the second rear-wheel walking component and the fourth rear-wheel walking component are located behind the motor 21. The rear wheels of the first rear-wheel walking component and the rear wheels of the third rear-wheel walking component are stacked in the front-back direction of the rear chassis 1, and the rear wheels of the first rear-wheel walking component are located axially outside the rear wheels of the third rear-wheel walking component; the rear wheels of the fourth rear-wheel walking component and the rear wheels of the second rear-wheel walking component are stacked in the front-back direction of the rear chassis 1, and the rear wheels of the fourth rear-wheel walking component 233 are located axially outside the rear wheels of the second rear-wheel walking component. The front-back direction of the rear chassis is the length direction of the rear chassis. This overlapping setting can not only improve the obstacle-crossing ability of the electric roller skates but also increase the smoothness during walking. The motor output shaft transmits power to the third rear-wheel walking component and the fourth rear-wheel walking component through the deceleration of two sets of gears respectively. The third rear-wheel walking component then transmits power to the first rear-wheel walking component through a set of gears, and the fourth rear-wheel walking component then transmits power to the second rear-wheel walking component through a set of gears.

[0046] There are two control methods for the motor speed: one is that the electronic control board controls the motor speed according to the data collected by the sensor and using the program burned in the electronic control board, and the other is that the electronic control board controls the motor speed according to the instructions sent by the remote control. The sensor includes an inertial measurement unit, an inclination sensor, and a speed sensor. The inertial measurement unit detects the swing angle of the electric roller skates in the front-back direction, the inclination sensor detects the inclination angle of the electric roller skates relative to the gravity direction, and the speed sensor detects the speed of the motor. The remote control is operated by the user according to his own feeling.

[0047] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any suitable way without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not separately describe various possible combination methods.

Claims

1. An electric roller skate, characterized in that, Comprising: A chassis, the chassis including a front chassis and a rear chassis, a cavity being provided in the rear chassis; A traveling device, the traveling device including a motor, a rear-wheel traveling assembly installed at the lower part of the rear chassis, and a front-wheel traveling assembly installed at the lower part of the front chassis, the motor driving the front-wheel traveling assembly and / or the rear-wheel traveling assembly to rotate; And an electric control device, the electric control device including a battery pack and an electric control board installed in the cavity, the battery pack supplying energy to the motor, and the electric control board being communicatively connected to the motor.

2. The electric roller skates according to claim 1, characterized in that, The rear chassis is made of a heat-conducting material, two sides in the thickness direction of the electric control board are respectively a low heat-conducting surface and a high heat-conducting surface, low-power electrical components are installed on the low heat-conducting surface, high-power electrical components are installed on the high heat-conducting surface, the high heat-conducting surface of the electric control board and the battery pack both face the inner wall of the cavity; a heat-conducting silicone grease is provided between the high heat-conducting surface of the electric control board and the inner wall of the cavity, and / or a heat-conducting silicone grease is provided between the battery pack and the inner wall of the cavity.

3. The electric roller skates according to claim 2, characterized in that, The battery pack and the electric control board are stacked in the up-down direction of the rear chassis, a substrate is installed in the cavity, the battery pack is installed on one side in the thickness direction of the substrate, the electric control board is installed on the other side in the thickness direction of the substrate, and the substrate is installed in the cavity.

4. The electric roller skates according to claim 1, characterized in that, The rear chassis includes a rear chassis body and a cover plate, a cavity being provided in the rear chassis body, the opening of the cavity facing upward or downward, and the cover plate covering the cavity to form the cavity.

5. The electric roller skates according to any one of claims 1 to 4, characterized in that The rear chassis includes a rear chassis body and a side cover installed on the side of the rear chassis body, a transmission cavity being formed between the side cover and the rear chassis body, the motor being installed on the side of the side cover, a transmission assembly being provided between the motor and the rear-wheel traveling assembly, the transmission assembly being arranged in the transmission cavity, and the rear-wheel traveling assembly being installed at the lower part of the rear chassis body.

6. The electric roller skates according to claim 5, characterized in that, The motor is located in the middle of the side cover, a single set of the rear-wheel traveling assembly includes a rear axle installed on the rear chassis body and rear wheels installed at both ends of the rear axle, the transmission assembly includes a transmission shaft installed on the rear chassis body, a transmission gear installed at the end of the transmission shaft, a driving gear installed on the output shaft of the motor, and a driven gear installed on the rear axle, the driving gear being engaged with the driven gear through the transmission gear, and the transmission shaft, the driving gear, the transmission gear and the driven gear being installed in the transmission cavity.

7. The electric roller skates according to claim 6, characterized in that, A shaft seat extending outward in the width direction of the rear chassis is provided on the side of the rear chassis body, and a shaft hole for the rear axle to extend out is provided on the shaft seat; a rear shoe body is installed above the rear chassis, the rear shoe body being made of a plastic material, and the rear shoe body being installed on the shaft seat through a fastener.

8. The electric roller skates according to claim 5, characterized in that, A protection plate is provided on the side cover below the motor, and heat dissipation holes are provided on the protection plate, the heat dissipation holes being inclined in the up-down direction.

9. The electric roller skates according to claim 5, characterized in that, A rear shoe body is installed above the rear chassis, and a protection cover surrounding the upper part and the side part of the motor is provided on the rear shoe body.

10. The electric roller skates according to claim 5, characterized in that, The side cover is located outside the rear chassis body. An indicator light communicatively connected to the electronic control board is provided inside the rear chassis body, and the indicator light is used to display the working state of the electric roller skates.

11. The electric roller skates according to any one of claims 1 to 4, characterized in that, The electric roller skates further include a sensor communicatively connected to the electronic control board, and the electronic control board controls the rotation speed of the motor according to the data collected by the sensor; or the electric roller skates further include a remote controller communicatively connected to the electronic control board, and the electronic control board controls the rotation speed of the motor according to the instructions sent by the remote controller.

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