Light emitting curtain inner tube set

By introducing conductive slip rings and a winding mechanism into the inner tube assembly of the automotive sunshade, the problem of unstable electrical connection during the winding process of the sunshade is solved, realizing the stability of electrical connection and intelligent control of the sunshade, thus improving the user experience in the vehicle cabin.

CN122379255APending Publication Date: 2026-07-14ANHUI ALPHA AUTOMOTIVE INTERIORS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI ALPHA AUTOMOTIVE INTERIORS CO LTD
Filing Date
2026-05-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing car sunshades have unstable electrical connections during the rolling process, affecting the normal use of light and ambient lighting, and the rolling mechanism is not stable enough.

Method used

A light-emitting curtain inner tube assembly was designed, comprising a conductive slip ring, a light-emitting film extension sheet, an electronic connector end, and a winding mechanism. The conductive slip ring connects to the frame to ensure electrical connection stability, and the design of the spring seat and bushing enables smooth rotation of the inner tube.

Benefits of technology

It achieves electrical connection stability during the rolling process of the luminous sunshade, improves the stability and intelligent control of the sunshade, and enhances the luxury and immersive experience of the vehicle cabin.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

The application relates to the technical field of automobile sunshade curtains, and particularly discloses a light-emitting curtain inner tube group which comprises an inner tube body installed on a frame, the length of the inner tube body is matched with the length of the frame, a conductive slip ring is installed at one end of the inner tube body, a reel fixing seat is installed at the other end of the inner tube body, the end, away from the inner tube body, of the conductive slip ring and the reel fixing seat is made of plastic and connected with the frame. The conductive slip ring, the light-emitting film extension piece and the electronic female end head are arranged, the part, where the conductive slip ring is connected with the inner tube body, is the outer ring of the conductive slip ring, the inner ring of the conductive slip ring rotates relative to the outer ring, the outer ring of the conductive slip ring is fixedly connected with the frame of the vehicle, and the power line and the electric connection of the electronic female end head are not affected in the rotating process of the inner tube body, so that the electric connection stability of the light-emitting sunshade curtain in the winding process is ensured.
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Description

Technical Field

[0001] This invention relates to the field of automotive sunshade technology, and more particularly to a light-emitting curtain inner tube assembly. Background Technology

[0002] The rise of illuminated car sunshades is the result of four major factors: upgraded consumer demand, mature new energy and intelligent technologies, policy and regulatory guidance, and the highlighting of pain points in traditional products. The market is rapidly evolving from "sunshade components" to "intelligent cockpit experience components." Consumer upgrading and personalization: from "usable" to "useful and beautiful." Therefore, sunshades also need to have functions such as starry sky ceilings, ambient lighting, and multi-color adjustable features. Therefore, sunshade curtains currently require electrical connections to achieve their lighting and ambient lighting requirements. Since sunshade curtains need to be rolled up during use, an inner tube assembly that can meet their functional requirements needs to be designed to ensure power connection and stable operation during the rolling process. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a light-emitting curtain inner tube assembly.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An inner tube assembly for a light-emitting curtain includes an inner tube body mounted on a frame. The length of the inner tube body matches the length of the frame. A conductive slip ring is installed at one end of the inner tube body, and a roller fixing seat is installed at the other end. The ends of the conductive slip ring and the roller fixing seat away from the inner tube body are both made of plastic and connected to the frame. An electrical connection mechanism and a winding mechanism are sequentially provided inside the inner tube body from the end where the conductive slip ring is installed to the end where the roller fixing seat is installed. A controller is provided on the outside of the inner tube body, and the controller is electrically connected to the electrical connection mechanism.

[0005] Preferably, the conductive slip ring and the end of the roller fixing seat away from the inner tube body are both made of plastic and connected to the frame. The inner tube body has a first slot on the end wall where the conductive slip ring is installed. A first locking plate is connected to the outer wall of the conductive slip ring. The first locking plate is inserted into the inside of the first slot. The outer wall of the conductive slip ring is press-fitted with the inner wall of the inner tube body.

[0006] Preferably, a bushing is rotatably fitted on the outer wall of the roller fixing seat, and the outer wall of the bushing is interference-fitted with the inner wall of the inner tube body.

[0007] Preferably, the inner tube body has a second slot on the end wall where the roller fixing seat is installed, and a second locking plate is connected to the side of the bushing facing the second slot. The second locking plate is snapped into the inside of the second slot.

[0008] Preferably, both the reel fixing seat and the bushing are provided with pin holes, and the pin holes on the bushing and the reel fixing seat can be connected by a pin body.

[0009] Preferably, the power connection mechanism includes a light-emitting film extension sheet and an electronic connection female end. The electronic connection female end is provided inside the inner tube body near the conductive slip ring. The output end of the electronic connection female end overlaps with the light-emitting film extension sheet. The end of the light-emitting film extension sheet away from the electronic connection female end extends to the outside of the inner tube body through a slot on the inner tube body and is electrically connected to the curtain light-emitting lamp sheet covered and installed on the outside of the inner tube body. A power cord is plugged into the output end of the controller. The end of the power cord away from the controller is connected to the input end of the conductive slip ring. Multiple output end wire harnesses of the conductive slip ring are connected to the input end of the electronic connection female end in batches. A wire harness cable tie is installed on the outside of the power cord.

[0010] Preferably, the electronic female terminal includes an electronic female terminal connected to the output wire harness of the conductive slip ring and an electronic female terminal connected to the electronic female terminal via an internal locking buckle. The inner tube body is provided with a limiting rubber strip on the inner wall outside the electronic female terminal. The outer wall of the limiting rubber strip is fitted with the inner wall of the inner tube body with a preset gap. The limiting rubber strip has an opening on the side facing the slot of the inner tube body. The inner walls on both sides of the opening of the limiting rubber strip abut against the two sides of the electronic female terminal.

[0011] Preferably, the winding mechanism includes a spring body, a spring seat is installed inside the inner tube body between the electronic female end and the winding shaft fixing seat, the spring body is connected between the spring seat and the winding shaft fixing seat, and a sound insulation tube is sleeved on the outside of the spring body.

[0012] Preferably, the inner tube body has multiple inward recesses on the outer wall at the spring seat mounting location, and the spring seat has cross ribs. Each cross rib on the spring seat is respectively engaged into the space between two adjacent recesses to complete the fixed installation of the spring seat. Both ends of the spring body are connected to the spring seat and the roller fixing seat respectively by means of hook suspension.

[0013] Preferably, the inner and outer walls of the sound insulation tube, as well as the connection between the roller fixing seat and the inner wall of the bushing, are all coated with industrial grease to ensure the smooth use of the internal parts when the inner tube body rotates. An oil-blocking silicone ball is installed between the spring seat and the electronic connector end, and the oil-blocking silicone ball is pressed tightly against the inner wall of the inner tube body with an interference fit.

[0014] Compared with the prior art, the beneficial effects of the present invention are: In this invention, a conductive slip ring, a light-emitting film extension sheet, and an electronic connector are provided. The part of the conductive slip ring that connects to the inner tube body is the outer ring of the conductive slip ring. The inner ring of the conductive slip ring rotates with the outer ring. The outer ring of the conductive slip ring is fixedly connected to the vehicle frame. Through this design, the electrical connection between the power line and the electronic connector is not affected during the rotation of the inner tube body, thereby ensuring the electrical stability of the light-emitting sunshade during the rolling process. The design of the spring seat allows one end of the spring body to twist along with the rotation of the inner tube body, thereby achieving the rotation of the inner tube body through the rotational force of the spring body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 For the present invention Figure 1 Enlarged structural diagram at point B; Figure 4 For the present invention Figure 1 Enlarged structural diagram at point C; Figure 5 This is a schematic diagram of the connection structure between the power cord, controller, and conductive slip ring of the present invention; Figure 6 This is a schematic diagram of the internal structure of the inner tube body 1 of the present invention; Figure 7 This is a schematic diagram of the mounting structure of the roller fixing seat and the spring body of the present invention; Figure 8 This is a schematic diagram of the overall structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point D; Figure 10 This is a schematic diagram of the installation structure of the electronic female terminal of the present invention in the limiting rubber strip.

[0016] In the diagram: 1. Inner tube body; 2. Light-emitting film extension sheet; 3. Power cord; 4. Controller; 5. First slot; 6. First card plate; 7. Conductive slip ring; 8. Pin body; 9. Pin hole; 10. Second slot; 11. Second card plate; 12. Reel fixing seat; 13. Wire harness cable tie buckle; 14. Electronic female terminal; 141. Electronic female terminal; 142. Electronic terminal; 15. Oil-resistant silicone ball; 16. Spring seat; 17. Sound insulation tube; 18. Spring body; 19. Bushing; 20. Limiting rubber strip. Detailed Implementation

[0017] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0018] Reference Figure 1-10 A light-emitting curtain inner tube assembly includes an inner tube body 1 mounted on a frame. The length of the inner tube body 1 matches the length of the frame. A conductive slip ring 7 is installed at one end of the inner tube body 1, and a roller fixing seat 12 is installed at the other end. The ends of the conductive slip ring 7 and the roller fixing seat 12 away from the inner tube body 1 are made of plastic and connected to the frame. Inside the inner tube body 1, from the end where the conductive slip ring 7 is installed to the end where the roller fixing seat 12 is installed, a power connection mechanism and a winding mechanism are sequentially arranged. A controller 4 is provided on the outside of the inner tube body 1, and the controller 4 is electrically connected to the power connection mechanism. The outside of the inner tube body 1 can cover the light-emitting sunshade curtain, realizing the winding of the light-emitting sunshade curtain. The conductive slip ring 7 can ensure the power connection stability of the internal power connection mechanism of the inner tube body 1 during rotation. The winding mechanism can realize the energy storage rotation of the inner tube body 1.

[0019] As a technical optimization of the present invention, the ends of the conductive slip ring 7 and the roller fixing seat 12 away from the inner tube body 1 are both made of plastic and connected to the frame. The inner tube body 1 has a first slot 5 on the end wall where the conductive slip ring 7 is installed. A first locking plate 6 is connected to the outer wall of the conductive slip ring 7, and the first locking plate 6 is engaged with the inside of the first slot 5. The outer wall of the conductive slip ring 7 and the inner wall of the inner tube body 1 are press-fitted. By installing the conductive slip ring 7 in the first slot 5 using the first locking plate 6, the connection stability between the outer wall of the conductive slip ring 7 and the inner tube body 1 can be ensured, thereby maintaining the rotational stability between the outer and inner rings of the conductive slip ring 7 during the rotation of the inner tube body 1, and increasing the rotational synchronization between the outer ring of the conductive slip ring 7 and the inner tube body 1.

[0020] As a technical optimization of the present invention, a bushing 19 is rotatably sleeved on the outer wall of the reel fixing seat 12, and the outer wall of the bushing 19 is interference-fitted with the inner wall of the inner tube body 1. By rotatably sleeved on the reel fixing seat 12 to install the bushing 19, the inner tube body 1 can rotate at the reel fixing seat 12 by driving the bushing 19 to rotate while the reel fixing seat 12 is fixed.

[0021] As a technical optimization of the present invention, the inner tube body 1 has a second slot 10 on the end wall of the mounting roller fixing seat 12. A second locking plate 11 is connected to the side of the bushing 19 facing the second slot 10, and the second locking plate 11 is snapped into the inside of the second slot 10. By installing the second locking plate 11 in the second slot 10, the rotational stability between the bushing 19 and the roller fixing seat 12 can be increased, and the synchronization of the rotation between the bushing 19 and the inner tube body 1 can be increased.

[0022] As a technical optimization of the present invention, both the reel fixing seat 12 and the bushing 19 are provided with pin holes 9. The pin holes 9 on the bushing 19 and the pin holes 9 on the reel fixing seat 12 can be connected by a pin body 8. By inserting the pin into the pin hole 9, the inner tube body 1 can be fixed to the bushing 19 and the reel fixing seat 12 by the pin body 8 when it is installed with the vehicle frame. This allows the inner tube body 1 to be fixed according to different usage requirements, so that the inner tube body 1 can provide a preset rotational force to the spring body 18 during installation. After the inner tube body 1 is installed with the vehicle frame, the pin body 8 is pulled out, so that the bushing 19 and the reel fixing seat 12 can return to normal rotational use.

[0023] As a technical optimization of the present invention, the power connection mechanism includes a light-emitting film extension sheet 2 and an electronic connection female end 14. The electronic connection female end 14 is provided inside the inner tube body 1 near the conductive slip ring 7. The output end of the electronic connection female end 14 overlaps with the light-emitting film extension sheet 2. The end of the light-emitting film extension sheet 2 away from the electronic connection female end 14 extends to the outside of the inner tube body 1 through a slot on the inner tube body 1 and is electrically connected to the curtain light-emitting lamp sheet covered and installed on the outside of the inner tube body 1. The output end of the controller 4 is plugged into and installed with a power cord 3. The end of the power cord 3 away from the controller 4 is connected to the input end of the conductive slip ring 7. Multiple output end wire harnesses of the conductive slip ring 7 are connected to the input end of the electronic connection female end 14 in batches. A wire harness cable tie buckle 13 is installed on the outside of the power cord 3. The cable tie buckle 13 can fix the power cord 3 on the vehicle frame when the inner tube body 1 is installed on the vehicle frame. Through the controller 4, the power cord 3, the conductive slip ring 7, the electronic female terminal 14 and the light-emitting film extension piece 2 are electrically connected, and the light-emitting film extension piece 2 is connected to the light-emitting lamp piece on the light-emitting sunshade, so the controller 4 can control the light-emitting and closing of the light-emitting sunshade.

[0024] As a technical optimization of the present invention, the electronic female terminal 14 includes an electronic female terminal 141 connected to the output terminal wire harness of the conductive slip ring 7 and an electronic female terminal 142 connected to the electronic female terminal 141 by an internal locking buckle. The inner tube body 1 is provided with a limiting rubber strip 20 on the inner wall outside the electronic female terminal 14. The outer wall of the limiting rubber strip 20 is fitted with the inner wall of the inner tube body 1 with a preset gap. The limiting rubber strip 20 has an opening on the side facing the slot of the inner tube body 1. The inner walls on both sides of the opening of the limiting rubber strip 20 abut against the two sides of the electronic female terminal 14 respectively. The design of the pre-set gap fit between the outer wall of the limiting rubber strip 20 and the inner wall of the inner tube body 1 ensures that the limiting rubber strip 20 is not affected by assembly blockage during assembly. Furthermore, the pre-set gap fit provides expansion space for the installation of the electronic female connector 14. By installing the limiting rubber strip 20, the electronic female connector 14 is fixed inside the inner tube body 1. The installation sequence of the electronic female connector 14 is as follows: first, the limiting rubber strip 20 is horizontally inserted through the end of the inner tube body 1 until it is installed... Figure 8 As shown in the installation position, the conductive slip ring 7 is then installed inside the inner tube body 1. The position of the power receiving female end 141 connected to the conductive slip ring 7 wire harness in the limiting rubber strip 20 is adjusted so that it moves to the preset installation position. Then, the power receiving female end 142 is inserted from the slot of the inner tube body 1 and the opening of the limiting rubber strip 20 and locked with the power receiving female end 141. This connection method is a mature existing technology, so it will not be described in detail.

[0025] As a technical optimization of the present invention, the winding mechanism includes a spring body 18. A spring seat 16 is installed inside the inner tube body 1 between the electronic female end 14 and the winding shaft fixing seat 12. The spring body 18 is connected between the spring seat 16 and the winding shaft fixing seat 12. A sound-insulating tube 17 is sleeved on the outer side of the spring body 18. The design of the sound-insulating tube 17 effectively reduces the noise when the spring body 18 rotates. The design of the spring seat 16 allows one end of the spring body 18 to twist following the rotation of the inner tube body 1, thereby achieving the rotation of the inner tube body 1 through the rotational force of the spring body 18.

[0026] As a technical optimization of the present invention, the inner tube body 1 has multiple inwardly recessed points on the outer wall of the mounting location of the spring seat 16. The spring seat 16 has cross-shaped ribs, and each cross-shaped rib on the spring seat 16 is respectively engaged into the space between two adjacent recessed points to complete the fixed installation of the spring seat 16. Both ends of the spring body 18 are connected to the spring seat 16 and the roller fixing seat 12 respectively by means of hook suspension. This connection method enables the spring seat 16 to be fixed to the inner tube body 1, and the recessed points are created by an existing servo dotting machine.

[0027] As a technical optimization of the present invention, the inner and outer walls of the soundproof tube 17, as well as the connection between the roller fixing seat 12 and the inner wall of the bushing 19, are all coated with industrial grease to ensure smooth operation of the internal parts when the inner tube body 1 rotates. An oil-blocking silicone ball 15 is installed between the spring seat 16 and the electronic female terminal 14, and the oil-blocking silicone ball 15 is interference-fitted with the inner wall of the inner tube body 1. The oil-blocking silicone ball 15 can prevent industrial grease from penetrating and corroding the power cord 3 and the electronic female terminal 14.

[0028] When in use, the inner tube body 1 is covered with a luminous sunshade. The inner tube body 1 is fixedly installed on the vehicle frame by the plastic connector at the end of the roller fixing seat 12 via the conductive slip ring 7. The conductive slip ring 7 used in this device is a mature existing technology. The part of the conductive slip ring 7 that connects to the inner tube body 1 is the outer ring of the conductive slip ring 7. There is an inner ring inside the conductive slip ring 7 that is rotatably connected to the outer ring. The inner ring of the conductive slip ring 7 is fixedly connected to the vehicle frame. The power line 3 is connected to the inner ring of the conductive slip ring 7. The conductive slip ring 7 is connected to the electronic female terminal 14 through the output wire harness on the outer ring. With this design, the electrical connection between the power line 3 and the electronic female terminal 14 can be unaffected during the rotation of the inner tube body 1, and the wire harness will not be rotated or tangled, thereby ensuring the electrical stability of the luminous sunshade during the rolling process. The sunshade installed on the inner tube body 1 has functions such as heat insulation and sun protection, ambient lighting, privacy protection and intelligent interaction. The luminous sunshade installed on the inner tube body 1 has starry sky, gradient and dynamic light and shadow effects, which can enhance the luxury and immersion of the vehicle cabin. The controller 4 supports voice, APP and scene control, so that the sunshade installed through the inner tube body 1 can adapt to the trend of intelligent cockpit.

[0029] The rotatable connection between the spool fixing seat 12 and the bushing 19 allows the bushing 19 to rotate with the inner tube body 1. The spring body 18 is connected to the end of the spool fixing seat 12 that passes through the bushing 19, and the spring seat 16 is fixedly connected to the inner tube body 1. Therefore, when the inner tube body 1 rotates, the end of the spring body 18 connected to the spring seat 16 rotates with the inner tube body 1, while the end of the spring body 18 connected to the spool fixing seat 12 remains stationary. Through this operation, the spring body 18 can store energy by rotation, thereby providing rotational force for the rotation of the inner tube body 1.

[0030] When the device is in use, the luminous sunshade is pulled towards the end away from the inner tube body 1 by the electric drive device preset on the vehicle frame. The inner tube body 1 rotates, and the luminous sunshade rolled up on the inner tube body 1 is pulled out from the inner tube body 1. It is electrically connected to the luminous film extension piece 2 through the controller 4, power line 3, conductive slip ring 7, and electronic terminal 14. The luminous film extension piece 2 is connected to the luminous lamp piece on the luminous sunshade. Therefore, the controller 4 can control the luminous sunshade to light up and close. When the luminous sunshade needs to be rolled up, the pulling of the sunshade away from the inner tube body 1 is stopped. At this time, the spring body 18, under its own rotational force, makes the inner tube body 1 drive the sunshade to rotate, thereby completing the automatic rolling up of the sunshade.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A light-emitting curtain inner tube assembly, comprising an inner tube body (1) mounted on a frame, characterized in that, The length of the inner tube body (1) matches the length of the frame. A conductive slip ring (7) is installed at one end of the inner tube body (1), and a roll fixing seat (12) is installed at the other end. A power receiving mechanism and a winding mechanism are sequentially provided inside the inner tube body (1) from the end where the conductive slip ring (7) is installed to the end where the roll fixing seat (12) is installed. A controller (4) is provided on the outside of the inner tube body (1), and the controller (4) is electrically connected to the power receiving mechanism.

2. The luminous curtain inner tube assembly according to claim 1, characterized in that, The conductive slip ring (7) and the roller fixing seat (12) are both made of plastic at the ends away from the inner tube body (1) and are connected to the frame. The inner tube body (1) has a first slot (5) on the end wall where the conductive slip ring (7) is installed. The outer wall of the conductive slip ring (7) is connected to a first locking plate (6). The first locking plate (6) is inserted into the inside of the first slot (5). The outer wall of the conductive slip ring (7) is press-fitted with the inner wall of the inner tube body (1).

3. The luminous curtain inner tube assembly according to claim 1, characterized in that, A bushing (19) is rotatably mounted on the outer wall of the roller fixing seat (12), and the outer wall of the bushing (19) is interference-fitted with the inner wall of the inner tube body (1).

4. The luminous curtain inner tube assembly according to claim 3, characterized in that, The inner tube body (1) has a second slot (10) on the end wall of the mounting roller fixing seat (12). The bushing (19) is connected to a second plate (11) on the side facing the second slot (10). The second plate (11) is snapped into the inside of the second slot (10).

5. The luminous curtain inner tube assembly according to claim 4, characterized in that, Both the spool fixing seat (12) and the bushing (19) are provided with pin holes (9). The pin holes (9) on the bushing (19) and the pin holes (9) on the spool fixing seat (12) can be connected by a pin body (8).

6. The luminous curtain inner tube assembly according to claim 1, characterized in that, The power connection mechanism includes a light-emitting film extension sheet (2) and an electronic female terminal (14). The electronic female terminal (14) is located inside the inner tube body (1) near the conductive slip ring (7). The output end of the electronic female terminal (14) overlaps with the light-emitting film extension sheet (2). The end of the light-emitting film extension sheet (2) away from the electronic female terminal (14) extends to the outside of the inner tube body (1) through a slot on the inner tube body (1) and is electrically connected to the curtain light-emitting lamp sheet covered and installed on the outside of the inner tube body (1). The output end of the controller (4) is connected to a power cord (3). The end of the power cord (3) away from the controller (4) is connected to the input end of the conductive slip ring (7). Multiple output wire harnesses of the conductive slip ring (7) are connected to the input end of the electronic female terminal (14) in batches. A wire harness cable tie buckle (13) is installed on the outside of the power cord (3).

7. The luminous curtain inner tube assembly according to claim 6, characterized in that, The electronic female terminal (14) includes an electronic female terminal (141) connected to the output wire harness of the conductive slip ring (7) and an electronic female terminal (142) connected to the electronic female terminal (141) by an internal locking buckle. The inner tube body (1) is provided with a limiting rubber strip (20) on the inner wall outside the electronic female terminal (14). The outer wall of the limiting rubber strip (20) is fitted with the inner wall of the inner tube body (1) with a preset gap. The limiting rubber strip (20) has an opening on the side facing the groove of the inner tube body (1). The inner walls on both sides of the opening of the limiting rubber strip (20) abut against the two sides of the electronic female terminal (14).

8. The luminous curtain inner tube assembly according to claim 1, characterized in that, The winding mechanism includes a spring body (18), and a spring seat (16) is installed inside the inner tube body (1) between the electronic female end (14) and the roll fixing seat (12). The spring body (18) is connected between the spring seat (16) and the roll fixing seat (12), and a sound insulation tube (17) is sleeved on the outside of the spring body (18).

9. The luminous curtain inner tube assembly according to claim 1, characterized in that, The inner tube body (1) has multiple inward recesses on the outer wall at the installation location of the spring seat (16). The spring seat (16) is provided with cross ribs. Each cross rib on the spring seat (16) is inserted into the space between two adjacent recesses to complete the fixed installation of the spring seat (16). Both ends of the spring body (18) are connected to the spring seat (16) and the roller fixing seat (12) respectively by means of hook suspension.

10. The luminous curtain inner tube assembly according to claim 1, characterized in that, The inner and outer walls of the sound insulation tube (17) and the connection between the roller fixing seat (12) and the inner wall of the bushing (19) are all coated with industrial grease to ensure the smooth use of the internal parts when the inner tube body (1) rotates. An oil-blocking silicone ball (15) is installed between the spring seat (16) and the electronic female terminal (14). The oil-blocking silicone ball (15) is pressed tightly against the inner wall of the inner tube body (1) with an interference fit.