Power supply rail and rail system

Abstract

The present application provides a power supply rail and a rail system. The power supply rail comprises: a carrier, comprising a first side and a second side arranged opposite to each other in a thickness direction of the carrier; and a plurality of profiles, disposed on the second side and extending in a direction away from the first side. When viewed in a cross-section along a longitudinal direction of the carrier, the profiles have, in the direction of extension of the profiles, at least two electrical contact regions at different heights. In the present application, at least two electrical contact regions having different heights are arranged such that the power supply rail can effectively distribute an electric field when a connected device is in contact with the power supply rail. Compared with conventional designs employing a single-height electrical contact region, such an uneven height arrangement helps to reduce local electric field intensity and avoid electric field concentration, thereby significantly reducing the risk of insulation breakdown. In addition, this uneven height arrangement provides more options for power extraction by the rail system.

Description

Power rail and track system

[0001] The present application claims priority to Chinese Patent Application No. 202411977735.X, filed on December 30, 2024, entitled “Power rail and track system” and Chinese Patent Application No. 202423290280.2, filed on December 30, 2024, entitled “Power rail and track system”, the contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to a power rail and track system, belonging to the technical field of lighting. BACKGROUND

[0003] In related track systems, the connection of the track with the connected device not only involves mechanical connection, but also includes electrical connection. The track usually provides power for the connected device through a power rail. However, in related power rail designs, the conductive components usually have the same structure and are arranged at the same height. Although this design meets the basic electrical connection requirements to some extent, it has obvious shortcomings.

[0004] Specifically, due to the consistent height of the conductive components, the electrical contact area of the power rail is relatively single, which can cause uneven distribution of the electric field when the connected device is electrically connected with the power rail. In particular, at some connection positions, due to the concentration of the electric field, the local electric field strength can be too high, thereby increasing the risk of insulation breakdown, resulting in device damage, system power failure, and even serious consequences such as fire.

[0005] Therefore, it is necessary to provide a power rail and track system to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide a power rail with staggered power taking.

[0007] To achieve the above purpose, the present application provides a power rail, comprising:

[0008] a carrier comprising a first side and a second side arranged opposite to each other along the thickness direction thereof;

[0009] a plurality of profiles arranged on the second side and extending away from the first side, and in a cross-sectional view along the longitudinal direction of the carrier, the profile has at least two electrical contact areas with different heights in the extension direction thereof.

[0010] Optionally, it further comprises an electrical conductor, the gap is between two adjacent profiles, the electrical conductor is arranged on the side of the profile facing the gap, and at least partially exposed to the gap to form an electrical contact area.

[0011] Optionally, each profile is provided with a groove, and an electrical conductor is disposed in the groove.

[0012] Optionally, each profile can have the same extension length.

[0013] Optionally, the first side of the carrier is recessed towards the second side to form a receiving portion, and the profile disposed on the back of the receiving portion has a height difference with other profiles to form multiple uneven electrical contact areas.

[0014] Optionally, the second side of the carrier is raised away from the first side to form a protrusion, and the profile provided on the protrusion has a height difference with other profiles to form multiple uneven electrical contact areas.

[0015] Optionally, the grooves are positioned in the same location on each profile.

[0016] Optionally, the grooves on at least some profiles may be positioned differently to create multiple uneven electrical contact areas.

[0017] Optionally, at least some of the profiles have different lengths, and the grooves on each profile are positioned differently to form multiple uneven electrical contact areas.

[0018] Another objective of this application is to provide a track system having the aforementioned electric guide rails.

[0019] To achieve the above objectives, this application provides an orbital system, comprising:

[0020] The track includes a mechanical guide rail and the aforementioned electric guide rail. The mechanical guide rail is provided with an assembly groove. The electric guide rail is assembled in the assembly groove, and the first side of the carrier is arranged facing the bottom wall or side wall of the assembly groove.

[0021] The connecting device is mechanically and electrically connected to the track.

[0022] The technical solution of this application has the following beneficial effects: By setting at least two electrical contact areas at different heights, this application enables the electric rail to more effectively disperse the electric field when the connecting equipment contacts the electric rail. Compared with the traditional single-height electrical contact area design, this uneven layout helps to reduce the local electric field intensity and avoid electric field concentration, thereby significantly reducing the risk of insulation breakdown. Furthermore, this uneven layout provides more options for power supply to the track system. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of the power rail conforming to an embodiment of this application;

[0024] Figure 2 is a cross-sectional view of the power rail in Figure 1;

[0025] Figure 3 is a cross-sectional view of another embodiment of the power rail;

[0026] Figure 4 is a cross-sectional view of another embodiment of the power rail;

[0027] Figure 5 is a cross-sectional view of another embodiment of the power rail;

[0028] Figure 6 is a cross-sectional view of another embodiment of the power rail;

[0029] Figure 7 is a cross-sectional view of another embodiment of the power rail;

[0030] Figure 8 is a cross-sectional view of another embodiment of the power rail;

[0031] Figure 9 is a cross-sectional view of another embodiment of the power rail;

[0032] Figure 10 is a cross-sectional view of another embodiment of the power rail;

[0033] Figure 11 is a cross-sectional view of another embodiment of the power rail;

[0034] Figure 12 is a cross-sectional view of another embodiment of the power rail.

[0035] Explanation of reference numerals in the attached drawings: 100-electrical guide rail, 110-mounting arm, 120-carrier, 1201-first side, 1202-second side, 130-carrier segment, 1301-first carrier segment, 1302-second carrier segment, 1303-third carrier segment, 140-profile, 1401-first profile, 1411-first end, 1402-second profile, 1421-second end, 1403-third profile, 1431-third end, 1404-groove, 150-electrical conductor, 1501-gap, 160-receiving part, 170-protrusion. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] This application provides a track system, including a track and a connecting device (not shown). The connecting device is mechanically and electrically connected to the track. Preferably, the connecting device can move along the extension direction of the track and can achieve precise stopping and flexible power supply at any position on the track.

[0038] It should be noted that the connecting device can be a lighting fixture, or it can be a sensor, camera, sign, etc., and this application does not limit this. These connecting devices can be directly mechanically and electrically connected to the track, or they can be mechanically and electrically connected to the track through a transfer structure such as a connector. This application does not limit this.

[0039] The track includes a mechanical guide rail (not shown) and a power guide rail 100. The mechanical guide rail has a mounting groove, and the power guide rail 100 is mounted within the mounting groove. The connecting device draws power from any position on the track by contacting the electrical conductor 150 in the power guide rail 100.

[0040] It's important to know that the track can include at least one track segment, and each track segment includes both mechanical and electrical guide rails 100. This means that users can configure multiple track segments according to their needs. Furthermore, the splicing shape of multiple track segments can be flexibly designed according to the installation environment, such as straight lines, rectangles, squares, etc.

[0041] Optionally, multiple track segments can be spliced ​​together using connectors to achieve both mechanical and electrical connections between them. The connectors include mechanical connectors and electrical connectors. Mechanical connectors are used to fix the mechanical rails in two adjacent track segments together, and electrical connectors are used to electrically connect the electrical rails 100 in two adjacent track segments.

[0042] Mechanical guide rails are used for installation on the walls or ceilings of buildings and are generally made of metal. A mechanical guide rail includes a base wall and two side walls arranged along its length on either side of the base wall. A mounting groove is formed between the base wall and the side walls. The power guide rail 100, as well as other structures such as control components, sensors, and fasteners on mechanical connectors, are all housed within this mounting groove.

[0043] The mounting slot has a downward-facing mounting opening. The power rail 100 is mounted into the mounting slot of the mechanical rail through the mounting opening.

[0044] As shown in Figures 1 and 2, the power rail 100 includes two mounting arms 110 disposed on a carrier 120. The two mounting arms 110 are wing-shaped and are used to engage with a mechanical guide rail to fix the power rail 100 into the mounting groove of the mechanical guide rail. In other embodiments, the power rail 100 can also be mounted to the mounting groove of the mechanical guide rail in other ways, such as by screws or welding; this application does not limit this method.

[0045] As shown in Figure 1, the power rail 100 includes a carrier 120, several profiles 140, and an electrical conductor 150. The carrier 120 and profiles 140 are both made of insulating materials, such as plastic. The electrical conductors 150 are made of conductive metal materials, such as copper or copper alloys. In this embodiment, the carrier 120, profiles 140, and electrical conductors 150 are integrally injection molded or extruded. This arrangement reduces the processing steps and lowers costs.

[0046] As shown in Figure 2, the carrier 120 includes a first side 1201 and a second side 1202 disposed opposite to each other along its thickness direction. A plurality of profiles 140 are disposed on the second side 1202 and extend in a direction away from the first side 1201. A gap 1501 is formed between two adjacent profiles 140. An electrical conductor 150 is disposed on the side of the profile 140 facing the gap 1501 and is at least partially exposed in the gap 1501 to form an electrical contact area, thereby realizing power transmission.

[0047] The first side 1201 of the carrier 120 faces the bottom wall or side wall of the mounting groove. In some embodiments, the first side 1201 faces the bottom wall of the mechanical guide rail, and the second side 1202 faces away from the mechanical guide rail and faces the mounting opening. In this case, the power rail 100 draws power from the bottom surface. In other embodiments, the first side 1201 may also face the side wall of the mechanical guide rail, while the second side 1202 faces away from the side wall. In this case, the power rail 100 draws power laterally, that is, from both sides in the width direction of the power rail 100. This application does not limit this.

[0048] For clarity, the following description uses the example of the carrier 120 having its first side 1201 facing the bottom wall of the mechanical guide rail, while its second side 1202 faces away from the mechanical guide rail and toward the mounting opening. However, those skilled in the art will understand that this should not be considered a limitation.

[0049] In this application, viewed in cross-section along the longitudinal direction of the carrier 120, the profile 140 has at least two electrical contact areas with different heights in its extension direction. This allows the power rail 100 to have multiple electrical contact areas at different heights, more effectively dispersing the electric field and preventing excessive concentration of the electric field at a single contact point. This helps reduce thermal effects and wear, reduces the risk of insulation breakdown, and thus extends the service life of the power rail 100 and the connected equipment. Simultaneously, the uneven electrical contact area design simplifies maintenance and upgrade processes, allowing maintenance personnel to more easily identify and access different electrical contact areas for necessary inspections and repairs.

[0050] Each profile 140 has a groove 1404, and an electrical conductor 150 is disposed within the groove 1404. The connecting device is inserted into the gap of the power rail 100 and makes electrical contact with the electrical conductor 150, thereby achieving electrical conduction with the power rail 100. Because the electrical contact area is shaped like a mountain with varying heights, the connection between electrical conductors 150 at the same distance from the corresponding carrier 120 is not a straight line.

[0051] Viewed from the longitudinal cross-section of the carrier 120, when each profile 140 has only one row of grooves 1404 to accommodate the electrical conductor 150, the electrical contact area is formed at the location of the electrical conductor 150 in the groove 1404. For example, in Figure 2, the first carrier segment 1301 includes two first profiles 1401. Assuming that the left first profile 1401 has only one groove 1404 at the bottom and the right first profile 1401 has only one groove 1404 at the top, there is a height difference (i.e., lower left and upper right) between the grooves 1404 on the left and right first profiles 1401. At this time, the line connecting the electrical conductors 150 on these two first profiles 1401 is not a straight line, forming two electrical contact areas with a height difference.

[0052] When each profile 140 has two rows of grooves 1404 to accommodate the electrical conductor 150, such as the first profile 1401 and the second profile 1402 in Figure 2, the area formed by the two grooves 1404 on the first profile 1401 is considered as a whole, and the electrical contact area is the center line between the two grooves 1404. Similarly, the area formed by the two grooves 1404 on the second profile 1402 is also considered as a whole, and the electrical contact area is the center line between the two grooves 1404. It can be seen that the center line on the second profile 1402 is higher than the center line on the first profile 1401, that is, the electrical contact area on the second profile 1402 is higher than the electrical contact area on the first profile 1401, forming an uneven electrical contact area.

[0053] Similarly, when each profile 140 is provided with three or more rows of grooves 1404 to accommodate the electrical conductor 150, the electrical contact area is the center line of the area formed by the three or more grooves 1404 on each profile 140, which will not be described in detail here.

[0054] In some embodiments, the extension length of each profile 140 is consistent. In this case, uneven electrical contact areas can be formed by configuring the carrier 120 as carrier segments 130 with varying heights. The following description uses this embodiment as an example.

[0055] According to a preferred embodiment, the second side 1202 of the carrier 120 is provided with at least two types of carrier segments 130. A height difference exists between the top surfaces of the at least two types of carrier segments 130. A profile 140 has an end located away from the second side 1202. Along the thickness direction, the ends of the profile 140 on carrier segments 130 at the same height are flush, while the ends of the profile 140 on carrier segments 130 at different heights have a height difference.

[0056] The carrier segment 130 includes a first carrier segment 1301, a second carrier segment 1302, and a third carrier segment 1303. The profile 140 includes a first profile 1401 disposed in the first carrier segment 1301, a second profile 1402 disposed in the second carrier segment 1302, and a third profile 1403 disposed in the third carrier segment 1303. The first profile 1401 has a first end 1411 away from the second side 1202, the second profile 1402 has a second end 1421 away from the second side 1202, and the third profile 1403 has a third end 1431 away from the second side 1202. The top surface of the first carrier segment 1301 is defined as a first plane, the top surface of the second carrier segment 1302 as a second plane, and the top surface of the third carrier segment 1303 as a third plane.

[0057] It should be noted that in some embodiments, the carrier segment 130 may only include the first carrier segment 1301 and the second carrier segment 1302. Of course, the carrier segment 130 may also include a fourth carrier segment 1304, etc. This application does not limit this. The following embodiments are described with the carrier segment 130 including the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303.

[0058] In some embodiments, at least two types of carrier segments 130 have the same thickness.

[0059] As shown in Figure 2, the profile 140 has a structure that is high in the middle and low on both sides. In this embodiment, the first plane is lower than the second plane, and the third plane is flush with the first plane. The first end 1411 is flush with the third end 1431, and the second end 1421 is higher than the first end 1411 and the third end 1431. In this embodiment, the first side 1201 of the second carrier segment 1302 is recessed towards the second side 1202 to form a hollow receiving portion 160. That is, there is a height difference between the second profile 1402 provided on the back of the receiving portion 160 (on the second carrier segment 1302) and the first profile 1401 and third profile 1403 on other carrier segments 130 (first carrier segment 1301 and third carrier segment 1303), and the grooves 1404 and the corresponding electrical conductors 150 provided thereon also have height differences, thereby forming an uneven electrical contact area.

[0060] The receiving section 160 is configured to accommodate other components on the track, such as fasteners, controllers, sensors, electronic components, or additional mechanical structures, thereby enabling more functions within a limited space and improving the overall integration and efficiency of the equipment. Furthermore, the hollow receiving section 160 allows for the effective use of previously wasted space, making rational use of the track's space, reducing installation space requirements, and resulting in a more compact and lightweight track structure. The hollow receiving section 160 can also serve as a heat dissipation channel for the track, effectively aiding in the heat dissipation of the power guide rail 100, improving heat dissipation efficiency, and extending the service life of the power guide rail 100. High thermal conductivity components, such as high thermal conductivity silicone, can also be installed within the hollow receiving section 160 to effectively improve the track's heat dissipation.

[0061] As shown in Figure 3, the profile 140 has a structure that is lower in the middle and higher on both sides. In this embodiment, the first plane is higher than the second plane, and the third plane is flush with the first plane. The first end 1411 is flush with the third end 1431, and the second end 1421 is lower than the first end 1411 and the third end 1431. In this embodiment, the first side 1201 of the first carrier segment 1301 and the third carrier segment 1303 are recessed towards the second side 1202 to form a receiving portion 160.

[0062] In this embodiment, the profile 140 disposed on the back of the receiving portion 160 (on the first carrier segment 1301 and the third carrier segment 1303) has a height difference with the profile 140 on other carrier segments 130 (second carrier segment 1302), and the grooves 1404 disposed thereon and the corresponding electrical conductors 150 also have a height difference, thereby forming an uneven electrical contact area.

[0063] As shown in Figure 4, the profile 140 forms a stepped structure. Correspondingly, there is a height difference between the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303. In this embodiment, the first plane is higher than the second plane, and the second plane is higher than the third plane. The first end 1411 is higher than the second end 1421, and the second end 1421 is higher than the third end 1431. The first side 1201 of the first carrier segment 1301 and the second carrier segment 1302 are recessed towards the second side 1202 to form a receiving portion 160, except that the height of the receiving portion 160 corresponding to the first carrier segment 1301 is greater than the height of the receiving portion 160 corresponding to the second carrier segment 1302.

[0064] In this embodiment, the first profile 1401, the second profile 1402, and the third profile 1403 all have height differences, and the grooves 1404 and the corresponding electrical conductors 150 respectively provided on them also have height differences, thereby forming an uneven electrical contact area.

[0065] In other embodiments, at least two types of carrier segments 130 have different thicknesses.

[0066] As shown in Figure 5, the profile 140 forms a structure that is higher in the middle and lower on both sides. In this embodiment, the second carrier segment 1302 has the greatest thickness, while the first carrier segment 1301 and the third carrier segment 1303 have the same thickness. In this embodiment, the first plane is lower than the second plane, and the third plane is flush with the first plane. The first end 1411 is flush with the third end 1431, and the second end 1421 is higher than both the first end 1411 and the third end 1431. In this embodiment, the first sides 1201 of the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303 are all located on the same plane.

[0067] In other words, in this embodiment, the second side 1202 of the carrier 120 protrudes away from the first side 1201 to form a protrusion 170 (second carrier segment 1302). The second profile 1402 disposed on the protrusion 170 has a height difference with the first profile 1401 and the third profile 1403. The grooves 1404 and the corresponding electrical conductors 150 disposed on them also have a height difference, thereby forming multiple uneven electrical contact areas.

[0068] By designing the protrusions 170 to form multiple uneven electrical contact areas, the electric field can be more effectively dispersed. This staggered layout helps reduce the local electric field strength and avoids electric field concentration, thereby significantly reducing the risk of insulation breakdown. At the same time, the protrusions 170 can also increase the overall mechanical strength of the power rail 100, making it more resistant to external impacts and vibrations.

[0069] As shown in Figure 6, the profile 140 forms a structure that is lower in the middle and higher on both sides. In this embodiment, the second carrier segment 1302 has the smallest thickness, while the first carrier segment 1301 and the third carrier segment 1303 have the same thickness. In this embodiment, the first plane is higher than the second plane, the third plane is flush with the first plane, the first end 1411 is flush with the third end 1431, and the second end 1421 is lower than the first end 1411 and the third end 1431. Similarly, in this embodiment, the first sides 1201 of the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303 are all located on the same plane.

[0070] In other words, in this embodiment, the second side 1202 of the carrier 120 protrudes away from the first side 1201 to form a protrusion 170 (first carrier segment 1301 and third carrier segment 1303). The first profile 1401, the third profile 1403 and the second profile 1402 disposed on the protrusion 170 have a height difference. The grooves 1404 and the corresponding electrical conductors 150 disposed on them also have a height difference, thereby forming multiple uneven electrical contact areas.

[0071] As shown in Figure 7, the profile 140 forms a stepped structure. Correspondingly, there is a height difference between the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303. In this embodiment, the thickness of the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303 gradually decreases. In this embodiment, the first plane is higher than the second plane, and the second plane is higher than the third plane. The first end 1411 is higher than the second end 1421, and the second end 1421 is higher than the third end 1431.

[0072] In other words, in this embodiment, the second side 1202 of the carrier 120 protrudes away from the first side 1201 to form a protrusion 170 (the first carrier segment 1301 and the second carrier segment 1302). However, the protrusion heights of the first carrier segment 1301 and the second carrier segment 1302 are different, which makes the first profile 1401, the second profile 1402, and the third profile 1403 all have height differences. The grooves 1404 and the corresponding electrical conductors 150 respectively provided on them also have height differences, thereby forming multiple uneven electrical contact areas.

[0073] In other embodiments, the profile 140 also forms a stepped structure. Correspondingly, there is a height difference between the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303. However, as shown in FIG8, the first carrier segment 1301 is a stepped portion disposed on the second side 1202. The thickness of the first carrier segment 1301 and the third carrier segment 1303 is the same, while the thickness of the second carrier segment 1302 is the greatest. In this embodiment, although the first side 1201 of the first carrier segment 1301, the second carrier segment 1302, and the third carrier segment 1303 are all located on the same plane, the first carrier segment 1301, due to the cantilever design of its stepped portion, also forms a hollow receiving portion 160 between itself and the second side 1202.

[0074] In this embodiment, the first profile 1401, the second profile 1402, and the third profile 1403 all have height differences, and the grooves 1404 and the corresponding electrical conductors 150 respectively provided on them also have height differences, thereby forming multiple uneven electrical contact areas.

[0075] When the carrier segment 130 also includes a fourth carrier segment 1304, the profiles 140 are arranged at staggered heights. As shown in Figure 9, the four carrier segments 130 have the same thickness, and the first side 1201 of the first carrier segment 1301 and the third carrier segment 1303 are recessed towards the second side 1202 to form a receiving portion 160. As shown in Figure 10, the first side 1201 of the four carrier segments 130 are all located on the same plane, wherein the first carrier segment 1301 and the third carrier segment 1303 have the same thickness, the second carrier segment 1302 and the fourth carrier segment 1304 have the same thickness, and the thickness of the first carrier segment 1301 and the third carrier segment 1303 is greater than the thickness of the second carrier segment 1302 and the fourth carrier segment 1304. Of course, it is also possible to set the first carrier segment 1301 to have the largest thickness, and the first side 1201 of the third carrier segment 1303 to have the receiving portion 160, etc., and this application does not limit this.

[0076] In other embodiments, the extension length of each profile 140 is consistent. In this case, multiple uneven electrical contact areas can also be achieved by setting the grooves 1404 on at least a portion of the profiles 140 at different height positions. The following description uses this embodiment as an example.

[0077] As shown in Figure 11, the first profile 1401, the second profile 1402, and the third profile 1403 have the same extension length, but the grooves 1404 and the corresponding electrical conductors 150 on them are at different heights, thus forming multiple uneven electrical contact areas. When the connecting device is electrically connected to the power rail 100, it will make electrical contact with the electrical conductors 150 at different heights.

[0078] Of course, in this embodiment, the same effect can also be achieved by providing a receiving portion 160 and / or a protrusion 170 on the carrier 120, which will not be elaborated here.

[0079] In other embodiments, at least some of the profiles 140 have inconsistent extension lengths. In this case, multiple uneven electrical contact areas can be achieved by setting the grooves 1404 on at least some of the profiles 140 at different heights. The following description uses this embodiment as an example.

[0080] As shown in Figure 12, the first profile 1401, the second profile 1402, and the third profile 1403 have different extension lengths. The grooves 1404 and the corresponding electrical conductors 150 on the three profiles are located at different heights, thus forming multiple uneven electrical contact areas. When the connecting device is electrically connected to the power rail 100, it will make electrical contact with the electrical conductors 150 at different heights.

[0081] Of course, in this embodiment, the same effect can also be achieved by providing a receiving portion 160 and / or a protrusion 170 on the carrier 120, which will not be elaborated here.

[0082] Furthermore, the extension lengths of any one or two of the first profile 1401, the second profile 1402, and the third profile 1403 can be different, which can also form multiple uneven electrical contact areas.

[0083] In summary, by setting at least two electrical contact areas at different heights, this application enables the power rail 100 to more effectively disperse the electric field when the connecting device contacts the power rail 100. This uneven layout helps reduce the local electric field strength and avoids electric field concentration, thereby significantly reducing the risk of insulation breakdown. Furthermore, this uneven layout also provides more options for power supply to the track system.

[0084] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An electric guide rail, wherein, include: The carrier (120) includes a first side (1201) and a second side (1202) disposed opposite to each other along its thickness direction; A plurality of profiles (140) are disposed on the second side (1202) and extend in a direction away from the first side (1201). When viewed in cross section along the longitudinal direction of the carrier (120), the profiles (140) have at least two electrical contact areas with different heights in their extension direction.

2. The power rail according to claim 1, wherein, It also includes an electrical conductor (150) with a gap (1501) between two adjacent profiles (140), the electrical conductor (150) being disposed on the side of the profile (140) facing the gap (1501) and at least partially exposed in the gap (1501) to form an electrical contact area.

3. The power rail according to claim 2, wherein, Each of the profiles (140) is provided with a groove (1404), and the electrical conductor (150) is disposed in the groove (1404).

4. The power rail according to claim 3, wherein, Each of the aforementioned profiles (140) has the same extension length.

5. The power rail according to claim 4, wherein, The first side (1201) of the carrier (120) is recessed towards the second side (1202) to form a receiving portion (160). The profile (140) disposed on the back of the receiving portion (160) has a height difference with other profiles (140) to form multiple uneven electrical contact areas.

6. The power rail according to claim 4, wherein, The second side (1202) of the carrier (120) protrudes away from the first side (1201) to form a protrusion (170). The profile (140) disposed on the protrusion (170) has a height difference with other profiles (140) to form multiple uneven electrical contact areas.

7. The power rail according to claim 5 or 6, wherein, The grooves (1404) on each of the profiles (140) are positioned in the same location.

8. The power rail according to claim 4, wherein, At least some of the grooves (1404) on the profile (140) are positioned differently to form multiple uneven electrical contact areas.

9. The power rail according to claim 3, wherein, At least some of the profiles (140) have inconsistent extension lengths, and the grooves (1404) on each profile (140) are positioned differently to form multiple uneven electrical contact areas.

10. An orbital system, wherein, include: The track includes a mechanical guide rail and an electric guide rail according to any one of claims 1-9, wherein the mechanical guide rail is provided with an assembly groove; the electric guide rail is assembled in the assembly groove, and the first side (1201) of the carrier (120) is disposed facing the bottom wall or side wall of the assembly groove; The connecting device is mechanically and electrically connected to the track.

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