Electric power guide rail and rail lighting system

Abstract

The invention provides an electric power guide rail and a rail lighting system. The electric power guide rail is used for being electrically connected with a connector and comprises a carrier, a profile and an electric conductor. The carrier extends in the longitudinal direction and is provided with a plurality of sectional materials protruding out of the carrier, and grooves are formed in the side portions of the sectional materials on the cross section of the carrier in the width direction; the electrical conductor is at least partially defined by the groove; a gap is formed between any two adjacent profiles, at least part of the electric conductor is exposed in the gap, the connector is allowed to be inserted into the gap so as to be in electrical contact with the electric conductor, and at least two adjacent profiles are not parallel to each other on the cross section of the carrier in the width direction. Compared with the prior art, according to the electric power guide rail, the two adjacent profiles are arranged on the two sides of the center line in the mode that the two adjacent profiles are not parallel to each other relative to the center line to form the guide face, and therefore the connector can be electrically connected with the electric power guide rail under the condition that the connector does not need to accurately align a gap in the electric power guide rail.

Description

Electric guide rail and track lighting system Technical Field

[0001] This invention relates to an electric guide rail and track lighting system, belonging to the field of lighting tools. Background Technology

[0002] Track lighting systems are widely used in shopping malls, exhibition halls and other venues because their installation location and illumination angle can be adjusted according to needs.

[0003] Since track lighting systems are commonly used in large-scale applications, current track lighting systems on the market are typically composed of multiple rail sections. Therefore, connectors are often required to achieve electrical connections between these multiple rail sections.

[0004] However, the connection between the connector and the guide rail often requires precise alignment, which is crucial for the continuous and stable operation of multi-segment spliced ​​track lighting systems. Ensuring precise alignment between the connector and the guide rail is obviously quite cumbersome for high-altitude installation of track lighting systems. At the same time, the cumbersome installation steps also increase safety hazards.

[0005] In view of this, it is indeed necessary to improve the existing track lighting system to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an electric rail that allows a connector to be inserted and electrically connected to the connector without requiring precise alignment.

[0007] To achieve the above objectives, the present invention provides an electrical guide rail for electrical connection with a connector, comprising:

[0008] The carrier extends longitudinally and has multiple profiles protruding from the carrier. On the cross-section in the width direction of the carrier, the side of the profile is provided with a groove.

[0009] An electrical conductor, at least partially defined by a groove;

[0010] In this design, a gap is formed between any two adjacent profiles, with at least a portion of the electrical conductor exposed within the gap. This gap allows the connector to be inserted for electrical contact with the conductor. In the cross-section along the width of the carrier, at least two adjacent profiles are not parallel. This non-parallel arrangement of adjacent profiles guides the connector insertion process, allowing the connector's electrical contact fingers to easily insert into the power rail and make electrical contact with the conductor within the groove. It also facilitates connector removal from the power rail, reducing the workload for operators to some extent. Furthermore, the narrower cross-section provides a clamping force to promote mechanical contact between the connector and the power rail, thereby enhancing the stability of the electrical connection.

[0011] As a further improvement of the present invention, within the same gap, one of the two adjacent profiles is provided with a groove communicating with the gap, and the other profile has an opening in a direction away from the gap.

[0012] As a further improvement of the present invention, each profile is provided with two grooves with opposite opening directions, one of which faces the gap opening and the other faces away from the gap opening.

[0013] As a further improvement of the present invention, in the cross-section of the power rail in the width direction, at least two adjacent profiles extend in directions toward or away from each other. Thus, by synchronously tilting the adjacent profiles, the insertion direction of the connector can be restricted. That is, when the adjacent profiles tilt in the same direction, the connector can be restricted to be inserted only from the correct insertion direction, thus preventing mistaken insertion. When the adjacent profiles tilt in different directions, the insertion direction of the connector is not restricted, making it more convenient for operators to insert the connector.

[0014] As a further improvement of the present invention, in the cross-section of the power rail in the width direction, at least one of the two adjacent profiles is substantially perpendicular to the carrier. Thus, the inclined profiles can also serve as markers, indicating the positions for designers to install specific or special communication cables / conductors. This prevents workers from unintentionally assembling the specified cables / conductors into the wrong rail grooves. Furthermore, during power rail line maintenance or repair, different types of cables / conductors can be clearly and accurately distinguished, especially when different types of cables / conductors are mounted on profiles with different inclinations, facilitating targeted work by the operators.

[0015] As a further improvement of the present invention, N profiles are provided, and N-1 gaps are formed between the N profiles. On the cross-section of the power rail in the width direction, the cross-sectional width of these N-1 gaps is different, where N≥3. In this way, by non-uniformizing the cross-sectional width, different specifications / types of cables / electrical conductors can be assembled in the power rail, and different models of connectors can also be adapted.

[0016] As a further improvement of the present invention, the profile is provided with N, and N-1 gaps are formed between the N profiles. On the cross section in the width direction of the power rail, the shape of the N-1 gaps is approximately centrally symmetrical, and N≥3.

[0017] As a further improvement of the present invention, the profile is provided with a limiting part that is opposite to the groove. The groove and the limiting part are respectively located in two adjacent gaps. In the same gap, the groove and the limiting part on two adjacent profiles together restrict the connector.

[0018] As a further improvement of the present invention, in the insertion direction of the connector, the limiting portion has a guide surface adapted to the electrical contact portion of the connector.

[0019] As a further improvement of the present invention, the power rail also includes sidewalls extending from opposite sides of the carrier, with a through cavity forming between the two sidewalls extending longitudinally and penetrating the carrier. The through cavity has an opening facing the profile and communicating with the gap, allowing the connector to be inserted into the gap from the through cavity.

[0020] The purpose of this invention is to provide a track lighting system that allows a power rail to be inserted into and electrically connected to the connector without requiring precise alignment with the connector.

[0021] To achieve the above objectives, the present invention provides a track lighting system, comprising:

[0022] One or more support rails, each support rail having an assembly groove;

[0023] The aforementioned power rails are installed into the mounting slots of the corresponding support rails, and adjacent power rails are electrically connected via connectors; and

[0024] The light source assembly is mounted to the support rail and makes electrical contact with the power rail.

[0025] The beneficial effects of this invention are as follows: The power rail of this invention, by tilting at least one of at least two adjacent profiles to form a guiding surface, allows the electrical contact portion of the connector to be inserted into the gap and make electrical contact with the conductor in the groove of the power rail without requiring precise alignment. This simplifies operation and improves operational safety. Furthermore, the non-parallel arrangement of the adjacent profiles facilitates connector removal from the power rail, reducing the workload for operators. The narrower cross-section also provides a clamping force to promote mechanical contact between the connector and the power rail, thereby enhancing the stability of the electrical connection. Attached Figure Description

[0026] Figure 1 is a structural schematic diagram of a track lighting system according to a preferred embodiment of the present invention.

[0027] Figure 2 is an enlarged view of the dashed circle in Figure 1.

[0028] Figure 3 is an exploded view of the orbit in Figure 1.

[0029] Figure 4 is an exploded view of the power rail in Figure 3.

[0030] Figure 5 is a cross-sectional view of the power rail in Figure 3 from another angle.

[0031] Figure 6 is a schematic diagram of the second structure of the power rail in Figure 3.

[0032] Figure 7 is a schematic diagram of the third structure of the electric rail in Figure 3.

[0033] Figure 8 is a schematic diagram of the fourth structure of the power rail in Figure 3.

[0034] Figure 9 is a schematic diagram of the fifth structure of the power rail in Figure 3.

[0035] Figure label:

[0036] 100- Track lighting system;

[0037] 1-Rail, 11-Support rail, 111-Assembly slot, 12-Electric rail, 120-Cavity, 121-Carrier, 122-Side wall, 123-Profile, 1230-Gap, 1231-Groove, 1232-Centerline, 1233-Limiting part, 1234-Guide surface, 1235-First part, 1236-Second part, 124-Electrical conductor, 125-Different component, 126-Grounding wire;

[0038] 2-Connector, 21-First electrical connection part, 22-Second electrical connection part. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Referring to Figures 1 and 2, this invention discloses a track lighting system 100, comprising at least two tracks 1. The two tracks 1 are spliced ​​together and electrically connected via connectors 2. The track lighting system 100 also includes a light source assembly (not shown) mechanically and electrically connected to the tracks 1. The light source assembly can be a spotlight or a downlight, etc., and is not limited thereto. For ease of description, the length direction of the track lighting system 100 is defined as the longitudinal direction, and the height direction of the track lighting system 100 is defined as the vertical direction.

[0041] Referring to Figure 3, the track 1 includes a support rail 11 and a power rail 12. The support rail 11 has a recessed mounting groove 111, and the power rail 12 is installed within the mounting groove 111. In this embodiment, the support rail 11 has a U-shaped mounting profile, and the mounting groove 111 corresponds to a U-shaped groove. This makes the track 1 generally strip-shaped, easier to grip, and more convenient to install.

[0042] Referring to Figures 4 and 5, the power rail 12 includes a carrier 121 and side walls 122 extending from opposite sides of the carrier 121. The two side walls 122 are wing-shaped and engage with the supporting rail 11. Of course, in other embodiments, the power rail 12 can also be fixed to the supporting rail 11 by screws or welding, etc., and there is no limitation on this.

[0043] A cavity 120 is formed between the two sidewalls 122, extending longitudinally and penetrating the carrier 121. The cavity 120 has an opening facing the profile 123 and communicating with the gap 1230. Therefore, the cavity 120 is a U-shaped cavity with openings on three sides, and the connector 2 can be inserted into the power rail 12 through the three openings of the cavity 120.

[0044] The power rail 12 is generally comb-shaped and includes N (N≥2) profiles 123 protruding from the carrier 121. The profiles 123 are integrally formed with the carrier 121. The profiles 123 and the carrier 121 extend in the same direction. N-1 gaps 1230 are formed between every N (N≥2) profiles 123. A gap 1230 is formed between any two adjacent profiles 123. The gaps 1230 allow the connector 2 to be inserted into and fixed to the power rail 12 for electrical connection.

[0045] In this embodiment, the extension direction of the profile 123 is the same as the height direction of the track lighting system 100. Therefore, the electrical connection direction between the connector 2 and the power rail 12 is perpendicular to the track 1.

[0046] In other embodiments, the two sidewalls 122 may extend perpendicularly to the carrier 121. Each sidewall 122 has a plurality of profiles 123. Specifically, these profiles 123 are arranged sequentially along the extension direction of the sidewall 122 (i.e., the height direction of the track lighting system 100). Each profile 123 on the two sidewalls 122 extends towards each other. When the connector 2 is inserted into the power rail 12, both sides of the connector 2 make electrical contact with the two sidewalls 122 of the power rail 12, respectively. That is, the connector 2 draws power from both sides of the power rail 12 in the width direction.

[0047] On the cross-section of the power guide rail 12 in the width direction, the profile 123 is provided with a groove 1231 recessed along the horizontal plane. Within the same gap 1230, each profile 123 is provided with a groove 1231 communicating with the gap 1230, and the grooves 1231 on two adjacent profiles 123 are staggered. That is to say, there are at least two staggered grooves 1231 within the same gap 1230.

[0048] The power rail 12 also includes an electrical conductor 124. The electrical conductor 124 is at least partially housed within a groove 1231 and is used for electrical connection with the connector 2. In this embodiment, the electrical conductor 124 is at least partially exposed in the gap 1230 to better connect with the connector 2 and avoid unstable connections. This ensures that each groove 1231 contains one electrical conductor 124. The more grooves 1231 within the same gap 1230, the more electrical conductors 124 can be installed. Depending on the different requirements of the track lighting system 100, different numbers of grooves 1231 can be provided within the same gap 1230; there is no limitation on this.

[0049] In this embodiment, each profile 123 has two recesses 1231 that are opposite to each other (i.e., have opposite opening directions) and staggered. One recess 1231 opens towards the gap 1230, and the other opens away from the gap 1230. On adjacent profiles 123, the two recesses 1231 at the same height have the same opening direction. That is, the power rail 12 has a total of two rows of recesses 1231, and the recesses 1231 in the same row have the same opening direction, while the recesses 1231 between different rows have opposite opening directions. This is to ensure that within the same gap 1230, only one electrical conductor 124 is electrically connected to the connector 2 at the same height, avoiding circuit misalignment. Of course, the height of the recesses 1231 on adjacent profiles 123 is not limited to the same height and can be adjusted according to actual needs; there is no limitation on this.

[0050] Optionally, each profile 123 has only one groove 1231. Within the same gap 1230, the groove 1231 on one of the two adjacent profiles 123 communicates with the gap 1230, while the groove 1231 on the other profile 123 opens in a direction away from the gap 1230. That is, there is only one groove 1231 within the same gap 1230. In this case, the number of electrical conductors 124 that can be installed can be increased by increasing the number of profiles 123.

[0051] Each profile 123 is also provided with a first operating part 127 located at the top and a second operating part 128 located between two recesses 1231. When installing or removing the power rail 12, the operator can exert force on the first operating part 127 and the second operating part 128 to avoid direct contact with the electrical conductor 124.

[0052] In the cross-section of the power rail 12 in the width direction, the defined gap 1230 has a centerline 1232, and at least two adjacent profiles 123 are respectively disposed on both sides of the centerline 1232, with at least one profile 123 extending obliquely towards or away from the centerline 1232. That is, at least one profile 123 is obliquely arranged so that the two adjacent profiles 123 are not parallel to each other. In this way, an oblique guide surface is formed, which can accommodate the oblique insertion of the connector 2. This broadens the application range and makes installation more convenient. In addition, by the non-parallel arrangement of the adjacent profiles 123, a guiding effect is provided during the insertion process of the connector 2, allowing the electrical contact fingers of the connector 2 to easily insert into the power rail 12 and make electrical contact with the electrical conductor 124 in the groove 1231, while also facilitating the removal of the connector 2 from the power rail 12, reducing the operating intensity of the operator to a certain extent. The narrower cross-section also provides a certain clamping force to promote the mechanical contact between the connector 2 and the power rail 12, thereby enhancing the stability of the electrical connection between the two.

[0053] Referring to Figure 5, in this embodiment, on the cross-section of the power rail 12 in the width direction, two adjacent profiles 123 extend obliquely towards or away from the center line 1232, and the angles between the two profiles 123 and the center line 1232 are the same. Preferably, the angle between the profile 123 and the center line 1232 is between 5° and 10°, and can be 5°, 8°, 10°, etc. If the angle between the profile 123 and the center line 1232 is too large, it cannot be adapted to a general connector 2; if the angle between the profile 123 and the center line 1232 is too small, it cannot guide the obliquely inserted connector 2. Of course, the angles between the two profiles 123 and the center line 1232 can also be different, but this may affect the overall aesthetics of the power rail 12. Thus, by synchronously tilting adjacent profiles 123, the insertion direction of connector 2 can be restricted. That is, when adjacent profiles 123 tilt in the same direction, connector 2 is restricted to be inserted only from the correct insertion direction, thus preventing mistaken insertion. When adjacent profiles 123 tilt in different directions, the insertion direction of connector 2 is not restricted, making it more convenient for operators to insert the connector.

[0054] In other embodiments, the power rail 12 may have various structures.

[0055] Specifically, as shown in Figures 6 and 7, in the cross-section of the power rail 12 in the width direction, one of the two adjacent profiles 123 can extend vertically, substantially perpendicular to the carrier 121, while the other profile 123 extends obliquely towards or away from the centerline 1232. Thus, the inclined profile 123 can also serve as an identifier, indicating the location for designers to install specific or special communication cables / conductors 124. This prevents workers from unintentionally assembling the specified cables / conductors 124 into the wrong grooves 1231 of the rail 1. Furthermore, during line maintenance or repair of the power rail 12, different types of cables / conductors 124 can be clearly and accurately distinguished, especially when different types of cables / conductors 124 are supported on profiles 123 at different inclinations, facilitating targeted work by the operators.

[0056] Optionally, as shown in Figures 8 and 9, the profile 123 includes a first portion 1235 connected to the carrier 121 and a second portion 1236 extending from the first portion 1235 away from the carrier 121. The first portions 1235 of the plurality of profiles 123 are parallel to each other, and at least one second portion 1236 of the profile 123 is not parallel to the second portion 1236 of the adjacent profile 123.

[0057] Specifically, the first portion 1235 of all profiles 123 extends vertically perpendicular to the carrier 121, and the second portion 1236 of at least one profile 123 may extend obliquely toward or away from the centerline 1232. In this case, the second portion 1236 of an adjacent profile 123 may continue to extend along the extension direction of the first portion 1235 (e.g., extending substantially vertically), or it may extend parallel or symmetrically to the second portion 1236 of the profile 123 (e.g., extending obliquely toward or away from the centerline). Thus, the first portion 1235 perpendicular to the carrier 121 is more stable overall, achieving a non-parallel effect through the second portion 1236 while ensuring the integrity of the first portion 1235 even if the obliquely positioned second portion 1236 is damaged. Furthermore, the first portion 1235 is used for electrical connection with the connector 2, further increasing fault tolerance.

[0058] In other embodiments, the power rail 12, comprising multiple profiles 123, can be divided into a first insertion area containing multiple first profiles and a second insertion area containing multiple second profiles. In the first insertion area, any two first profiles are parallel to each other. In the second insertion area, at least two second profiles are arranged non-parallel to each other. Thus, each insertion area can be used to receive electrical contact fingers of different shapes. That is, one power rail 12 can accommodate two types of connectors 2. In this way, different usage requirements can be met.

[0059] Optionally, other numbers (such as three or more) of mating areas may be provided for the power rail 12. It is understood that the number of mating areas usually depends on the application requirements of the power rail 12 and can be freely designed by developers according to the application requirements.

[0060] At least three profiles 123 are provided, and two gaps 1230 are formed between the three profiles 123. In the cross-section along the width direction of the power rail 12, the two gaps 1230 are approximately centrally symmetrical. In this embodiment, the two gaps 1230 are not perfectly centrally symmetrical because the groove 1231 is partially located within the gap 1230, dividing it. The profile 123 also has a first operating portion 127 that partially extends into the gap 1230, dividing the gap 1230 into multiple sections by the groove 1231 and the first operating portion 127. The placement of the first operating portion 127 and the groove 1231 makes it difficult for adjacent gaps 1230 to form a perfectly centrally symmetrical structure.

[0061] Preferably, the gaps 1230 are arranged in a continuous pattern of approximately positive V-shapes and inverted V-shapes. Whether positive or inverted V-shaped, the gaps allow the connector 2 to be compressed and positioned by the end with the smaller cross-sectional area. Compared to a typical power rail 12, the mechanical connection with the connector 2 is tighter, and the electrical connection is more stable.

[0062] Of course, in other embodiments, the cross-sectional widths of the two gaps 1230 can also be set to be different to accommodate different connectors 2 or different specifications of electrical conductors 124.

[0063] At the same height, profile 123 is provided with a limiting portion 1233 opposite to the groove 1231. The groove 1231 and the limiting portion 1233 are respectively located in two adjacent gaps 1230. Within the same gap 1230, the groove 1231 and the limiting portion 1233 on two adjacent profiles 123 at the same height jointly restrict the connector 2. Of course, the limiting portion 1233 and the groove 1231 can also be set at different heights, as long as the limiting effect on the connector 2 is achieved without affecting the insertion of the connector 2, there is no restriction on this.

[0064] In the insertion direction of connector 2, the limiting part 1233 is provided with a guide surface 1234 adapted to the electrical contact portion of connector 2. By providing the limiting part 1233, the space of gap 1230 is further reduced to ensure that connector 2 can be positioned inside gap 1230. The guide surface 1234 is preferably an inclined surface to guide the insertion of connector 2.

[0065] Since the cavity 120 is a U-shaped cavity with openings on three sides, the connector 2 can be inserted in two directions: along the length of the carrier 121 and perpendicular to the carrier 121. When the connector 2 is inserted into the gap 1230 from the opening perpendicular to the carrier 121, the tilt angle of the guide surface 1234 is preferably the same as the tilt angle of the profile 123.

[0066] Preferably, taking Figure 5 as an example, the end of the groove 1231 with an opening extends into the gap 1230 and is inclined to correspond to the limiting part 1233. This arrangement not only makes the structure more aesthetically pleasing but also allows for further compression and positioning of the connector 2.

[0067] As a non-limiting example, connector 2 may include a first electrical connection portion 21 and a second electrical connection portion 22 that are disposed opposite to each other and electrically connected. The first electrical connection portion 21 is inserted into the power rail 12 of one of the tracks 1 to make electrical contact with an electrical conductor 124 disposed in a groove 1231 of the power rail 12. The second electrical connection portion 22 is inserted into the power rail 12 of the other track 1 to make electrical contact with an electrical conductor 124 disposed in a groove 1231 of the corresponding power rail 12. In this way, the electrical conductor 124 in one track 1, the first electrical connection portion 21, the second electrical connection portion 22, and the electrical conductor 124 in the other track 1 are electrically connected to each other.

[0068] Preferably, the power rail 12 further includes a non-conforming member 125. Referring to Figure 5, the non-conforming member 125 is erected on the carrier 121 and positioned near one of the sidewalls 122. The non-conforming member 125 is substantially the same as the profile 123 and can also form a gap 1230 between itself and the adjacent profile 123 for the connector 2 to be inserted. In this embodiment, unlike the profile 123, the non-conforming member 125 has only one groove 1231. Optionally, in the cross-section of the power rail 12 in the width direction, the groove 1231 on the non-conforming member 125 can be at the same height as one of the grooves 1231 on the adjacent profile 123.

[0069] As an example, the difference between the irregular member 125 and the profile 123 may lie solely in the number of grooves 1231. This is to facilitate installers in visually and quickly identifying the correct installation direction, thereby avoiding repetitive work. Therefore, the irregular member 125 is preferably located closest to the sidewall 122. Of course, in other embodiments, it is acceptable as long as it is not located in the exact center of multiple profiles 123.

[0070] The power rail 12 has multiple grooves 1231 disposed on several profiles 123 and a non-standard component 125. A grounding wire 126 is disposed within one of the grooves 1231. The supporting rail 11 is made of metal, and the power rail 12 is provided with the grounding wire 126. The supporting rail 11 is electrically connected to and grounded by the grounding wire 126. Of course, the supporting rail 11 can be electrically connected to the grounding wire 126 via connector 2, or it can be directly connected to the grounding wire 126; there are no restrictions on the connection method. Therefore, there are no restrictions on the location of the grounding wire 126. The reference numerals in the attached drawings are for illustrative purposes only and should not be interpreted as limiting the grounding wire 126 to the locations shown in the attached drawings.

[0071] As a non-limiting example, the light source assembly is movably mounted to the support rail 11 and includes an electrical contact portion that inserts into the gap 1230 of the power rail 12 for electrical connection with the electrical conductor 124. During the movement of the light source assembly relative to the support rail 11, the electrical contact portion remains in electrical contact with the electrical conductor 124 on the power rail 12. That is, the light source assembly can slide arbitrarily along the longitudinal direction of the support rail 11 to be mounted at any position on the support rail 11. Simultaneously, the electrical contact portion of the light source assembly can draw power at any position on the power rail 12. Alternatively, the light source assembly can be fixed in a fixed position on the support rail 11 and electrically connected to the power rail 12.

[0072] In summary, the power rail 12 and track lighting system 100 of the present invention, by tilting at least one of the at least two adjacent profiles 123 to form a guiding surface, allows the electrical contact portion of the connector 2 to be inserted into the gap 1230 on the power rail 12 without precise alignment, and to make electrical contact with the electrical conductor 124 in the groove 1231. This simplifies operation and improves operational safety. Furthermore, the non-parallel arrangement of the adjacent profiles 123 facilitates the removal of the connector 2 from the power rail 12, reducing the workload for operators. The narrower cross-section also provides clamping force to promote mechanical contact between the connector 2 and the power rail 12, thereby enhancing the stability of their electrical connection.

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electrical rail for electrical connection with a connector (2), characterized in that, include: A carrier (121) extends longitudinally and has a plurality of profiles (123) protruding from the carrier (121). In a cross-section in the width direction of the carrier (121), the profiles (123) have grooves (1231) on their sides. An electrical conductor (124) is at least partially defined by the grooves (1231). A gap (1230) is formed between any two adjacent profiles (123), and the electrical conductor (124) is at least partially exposed in the gap (1230). The gap (1230) allows the connector (2) to be inserted to make electrical contact with the electrical conductor (124). In a cross-section in the width direction of the carrier (121), at least two adjacent profiles (123) are not parallel to each other.

2. The electric guide rail according to claim 1, characterized in that, Within the same gap (1230), one of the two adjacent profiles (123) has a groove (1231) communicating with the gap (1230), and the groove (1231) on the other profile (123) opens in a direction away from the gap (1230).

3. The electric guide rail according to claim 2, characterized in that, Each of the profiles (123) is provided with two grooves (1231) with opposite opening directions, one of which opens towards the gap (1230) and the other opens away from the gap (1230).

4. The electric guide rail according to claim 1, characterized in that, On the cross section of the power rail (12) in the width direction, at least two adjacent profiles (123) extend toward or away from each other.

5. The electric guide rail according to claim 4, characterized in that, In the cross section of the power rail (12) in the width direction, one of the at least two adjacent profiles (123) is substantially perpendicular to the carrier (121).

6. The electric guide rail according to claim 1, characterized in that, The profile (123) is provided in N parts, and N-1 gaps (1230) are formed between the N profiles (123). On the cross section of the power rail (12) in the width direction, the cross section widths of the N-1 gaps (1230) are different, and N≥3.

7. The electric guide rail according to claim 1, characterized in that, The profile (123) is provided in N parts, and N-1 gaps (1230) are formed between the N profiles (123). On the cross section of the power rail (12) in the width direction, the N-1 gaps (1230) are arranged in a roughly centrally symmetrical manner, and N≥3.

8. The electric guide rail according to claim 6 or 7, characterized in that, The profile (123) is provided with a limiting part (1233) that is opposite to the groove (1231). The groove (1231) and the limiting part (1233) are respectively located in two adjacent gaps (1230). In the same gap (1230), the groove (1231) and the limiting part (1233) on the two adjacent profiles (123) together restrict the connector (2).

9. The power rail according to claim 8, characterized in that, In the insertion direction of the connector (2), the limiting part (1233) has a guide surface (1234) adapted to the electrical contact portion of the connector (2).

10. A track lighting system, characterized in that, include: One or more support rails (11), wherein the support rails (11) are provided with mounting grooves (111); a power rail (12) as described in any one of claims 1-9, which is installed into the mounting groove (111) of the corresponding support rail (11), and two adjacent power rails (12) are electrically connected by a connector (2); and a light source assembly, which is installed into the support rails (11) and is in electrical contact with the power rails (12).

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