Flexible light strip, manufacturing method for flexible light strip and motor vehicle

Abstract

The present application provides a flexible light strip which comprises: a flexible circuit board that extends from the first end to the second end along a length direction, the flexible circuit board comprising multiple bases that are spaced apart from each other along the length direction and multiple connecting parts that connect the multiple bases together; multiple light sources that are correspondingly arranged on first faces; a first conductive wire group that comprises multiple conductive wire sections, and is connected to the first solder pads, each conductive wire section being connected to at least two of the first solder pads that are adjacent; and a second conductive wire group that comprises multiple conductive wire sections, and is connected to the second solder pads, each conductive wire section being connected to at least two of the second solder pads that are adjacent.

Description

Title of the Invention: Flexible light strip, manufacturing method for flexible light strip and motor vehicleTechnical Field

[0001] The present application relates to the technical field of lighting, in particular to a flexible light strip, a manufacturing method for a flexible light strip and a motor vehicle.Background Art

[0002] In the technical field of lighting, light strips are widely used. When a light strip is used for a motor vehicle, the light strip may provide a motor vehicle with light for lighting or signalling to ensure safe travel, or provides a decorative function for the motor vehicle. However, light strips at present have poor universality for adapting to various use cases, and manufacturing many is inconvenient. Therefore, a solution that provides a light strip that is convenient to manufacture and has better universality is really urgently needed at present.Summary of the Invention

[0003] An objective of the present application is to overcome at least one of the problems and shortcomings in the prior art.

[0004] A first aspect of the present application provides a flexible light strip, comprising:

[0005] a flexible circuit board, which comprises a first end and a second end that are arranged opposite each other, the flexible circuit board extending along a length direction of the flexible light strip from the first end to the second end, and the flexible circuit board comprising:

[0006] multiple bases, which are spaced apart from each other along the length direction, each of the bases comprising a first solder pad and a second solder pad; and

[0007] multiple connecting parts, which connect the multiple bases together, each of the connecting parts being connected between two of the bases that are adjacent;

[0008] multiple light sources, which are correspondingly arranged on first faces of the multiple bases;

[0009] a first conductive wire group, which is connected to the first solder pads of the multiple bases and connects the multiple bases together, the first conductive wire group comprising multiple conductive wire sections, each conductive wire section of the first conductive wire group being connected to at least two of the first solder pads that are adjacent; and

[0010] a second conductive wire group, which is connected to the second solder pads of the multiple bases and connects the multiple bases together, the second conductive wire group comprising multiple conductive wire sections, each conductive wire section of the second conductive wire group being connected to at least two of the second solder pads that are adjacent.

[0011] In some embodiments, each conductive wire section of the first conductive wire group and each conductive wire section of the second conductive wire group are all a conductive metal frame.

[0012] In some embodiments, the first solder pad that connects two conductive wire sections that are adjacent in the first conductive wire group and the second solder pad that connects two conductive wire sections that are adjacent in the second conductive wire group are located on different bases.

[0013] In some embodiments, multiple conductive wire sections of the first conductive wire group comprise one or multiple types of conductive wire sections;

[0014] multiple conductive wire sections of the second conductive wire group comprise one or multiple types of conductive wire sections.

[0015] In some embodiments, the conductive wire section of the first conductive wire group and the conductive wire section of the second conductive wire group are respectively selected from at least one of a first type of conductive wire section, a second type of conductive wire section, a third type of conductive wire section and a fourth type of conductive wire section;

[0016] the first type of conductive wire section is used for connecting two of the bases that are adjacent;

[0017] the second type of conductive wire section is used for connecting three of the bases that are adjacent;

[0018] the third type of conductive wire section is used for connecting four of the bases that are adjacent;

[0019] the fourth type of conductive wire section is used for connecting five of the bases that are adjacent.

[0020] In some embodiments, a conductive lead is distributed on the multiple bases and the multiple connecting parts, and the conductive lead electrically connects the multiple light sources together;

[0021] the conductive lead on the multiple connecting parts is used for providing a control signal to the multiple light sources;

[0022] the first conductive wire group and the second conductive wire group are used for providing a power signal to the multiple light sources.

[0023] In some embodiments, each of the light sources comprises an LED and a light source control circuit that are electrically connected to each other;

[0024] the light source control circuit is used for controlling an action of the LED according to the control signal that is received.

[0025] In some embodiments, the first solder pad and the second solder pad are both located on the first face of the base, and are respectively located on two sides of the light source along a width direction of the flexible light strip;

[0026] the first conductive wire group and the second conductive wire group that are respectively soldered to the first solder pad and the second solder pad are located on the first faces of the multiple bases, and are respectively located at two ends of the flexible light strip along the width direction;

[0027] in the width direction, the multiple light sources are located between the first conductive wire group and the second conductive wire group, and the connecting part is located between the first conductive wire group and the second conductive wire group.

[0028] In some embodiments, the flexible light strip has freedom to bend in any way in three-dimensional space;

[0029] each of the connecting parts comprises two branches, and each of the branches has a bending part;

[0030] a hollow part is provided between two of the bases that are adjacent, and the bending part has freedom to deform toward the hollow part.

[0031] In some embodiments, a thickness of the connecting part is equal to a thickness of the base;

[0032] a thickness of the connecting part and the base is less than or equal to 0.5 mm;

[0033] a width of the connecting part is less than 1 / 2 of a width of the base, and the width of the connecting part is less than 2 mm.

[0034] In some embodiments, the conductive wire section of the first conductive wire group comprises a first solder part and a first bent part that are connected to each other, the first solder part being soldered to the first solder pad, and the first bent part being located between two of the bases that are adjacent;

[0035] the conductive wire section of the second conductive wire group comprises a second solder part and a second bent part that are connected to each other, the second solder part being soldered to the second solder pad, and the second bent part being located betweentwo of the bases that are adjacent;

[0036] the first bent part and the second bent part have freedom to deform toward the hollow part.

[0037] In some embodiments, each conductive wire section of the first conductive wire group comprises a first cutting point, the first cutting point being located at the first solder part or the first bent part;

[0038] each conductive wire section of the second conductive wire group comprises a second cutting point, the second cutting point being located at the second solder part or the second bent part.

[0039] In some embodiments, the flexible light strip further comprises multiple reinforcement parts, the multiple reinforcement parts being correspondingly arranged on second faces of the multiple bases, the second face and the first face of the base being arranged opposite each other;

[0040] the reinforcement part is a hard metal plate, and the reinforcement part is used for supporting the light source and dissipating heat of the light source.

[0041] A second aspect of the present application provides a manufacturing method for a flexible light strip, the method comprising the following steps:

[0042] S1 : providing a flexible circuit board assembly, the flexible circuit board assembly comprising multiple flexible circuit boards, and the multiple flexible circuit boards being connected to each other;

[0043] S2: providing multiple light sources, and soldering the multiple light sources to the multiple flexible circuit boards;

[0044] S3: providing multiple conductive metal frames, and soldering the multiple conductive metal frames to the multiple flexible circuit boards;

[0045] S4: cutting the flexible circuit board assembly and the conductive metal frames to form the flexible light strip provided in the first aspect and the abovementioned embodiments.

[0046] A third aspect of the present application provides a motor vehicle, which comprises the flexible light strip provided in the first aspect and the abovementioned embodiments.Brief Description of the Drawings

[0047] Fig. 1 a is a three-dimensional structural schematic drawing of a flexible light strip provided in a first embodiment of the present application.

[0048] Fig. 1 b is a three-dimensional structural schematic drawing of a first portion of the flexible light strip shown in Fig. 1 a.

[0049] Fig. 1 c is a top view of the first portion of the flexible light strip shown in Fig. 1 b.

[0050] Fig. 1 d is a partially enlarged view A of the first portion of the flexible light strip shown in Fig. 1 b.

[0051] Fig. 1 e is a three-dimensional structural schematic drawing of a second portion of the flexible light strip shown in Fig. 1 a.

[0052] Fig. 2a shows a three-dimensional structural schematic drawing of a conductive metal frame for manufacturing a third type of conductive wire section shown in Fig. 1 c.

[0053] Fig. 2b shows a three-dimensional structural schematic drawing of a conductive metal frame for manufacturing a fourth type of conductive wire section shown in Fig. 1 c.

[0054] Fig. 3a is a three-dimensional structural schematic drawing of a flexible light strip provided in a second embodiment of the present application.

[0055] Fig. 3b is a three-dimensional structural schematic drawing of a first portion of the flexible light strip shown in Fig. 3a.

[0056] Fig. 3c is a three-dimensional structural schematic drawing of a second portion of the flexible light strip shown in Fig. 3a.

[0057] Fig. 4a shows a three-dimensional structural schematic drawing of aconductive metal frame for manufacturing a third type of conductive wire section shown in Fig. 3b.

[0058] Fig. 4b shows a three-dimensional structural schematic drawing of a conductive metal frame for manufacturing a fourth type of conductive wire section shown in Fig. 3b.

[0059] Fig. 5a is a three-dimensional structural schematic drawing of a flexible light strip provided in a third embodiment of the present application.

[0060] Fig. 5b is a three-dimensional structural schematic drawing of a first portion of the flexible light strip shown in Fig. 5a.

[0061] Fig. 5c is a three-dimensional structural schematic drawing of a second portion of the flexible light strip shown in Fig. 5a.

[0062] Fig. 6a shows a three-dimensional structural schematic drawing of a conductive metal frame for manufacturing a third type of conductive wire section shown in Fig. 5b.

[0063] Fig. 6b shows a three-dimensional structural schematic drawing of a conductive metal frame for manufacturing a fourth type of conductive wire section shown in Fig. 5b.

[0064] Fig. 7 is a flowchart of a manufacturing method for a flexible light strip provided in embodiments of the present application.Detailed Description of Embodiments

[0065] Embodiments of the present application will be described in detail below with reference to the drawings. It should be understood that the embodiments of the present application are mainly for illustrating possible implementations of the technical solutions of the present application and should not be construed as limiting the technical solutions of the present application. In the present description, identical or similar components are indicated by identical or similar reference numerals.

[0066] Fig. 1 a is a three-dimensional structural schematic drawing of a flexible light strip 100 provided in a first embodiment of the present application. Fig. 1 b is a three-dimensional structural schematic drawing of a first portion P1 of the flexible light strip 100 shown in Fig. 1 a. Fig. 1 c is a top view of the first portion P1 of the flexible light strip 100 shown in Fig. 1 b. Fig. 1 d is a partially enlarged view A of the first portion P1 of the flexible light strip 100 shown in Fig. 1 b. Fig. 1 e is a three-dimensional structural schematic drawing of a second portion P2 of the flexible light strip shown in Fig. 1 a.

[0067] As shown in Figs. 1a - 1 e, the first embodiment of the present application provides a flexible light strip 100, the flexible light strip 100 as a whole being a long strip shape, and having a length direction L and a width direction W. The flexible light strip 100 is able to bend into various shapes to adapt to various mounting forms, forming different emergent light effects, such that universality of the flexible light strip 100 is better. The flexible light strip 100 may be used for a motor vehicle; for example, the flexible light strip 100 may act as a daytime running lamp, a position lamp, a taillamp or an interior decorative lamp of the motor vehicle, providing the motor vehicle with a lighting function, a signalling function or a decorative function.

[0068] The flexible light strip 100 comprises a flexible circuit board 10, multiple light sources 20, a first conductive wire group 30 and a second conductive wire group 40.

[0069] The flexible circuit board 10 comprises a first end 11 and a second end 12 arranged opposite each other; the flexible circuit board 10 extends along a length direction L of the flexible light strip 100 from the first end 11 to the second end 12. The flexible circuit board 10 comprises multiple bases 13 and multiple connecting parts 14. The multiple bases 13 are spaced apart along the length direction L. Each base 13 comprises a first solder pad 131 and a second solder pad132; the first solder pad 131 and the second solder pad 132 are both located on a first face 13a of the base 13, and are respectively located on two sides of the light source 20 along a width direction W of the flexible light strip 100. The multiple connecting parts 14 connect the multiples bases 13 together, each connecting part 14 being connected between two bases 13 that are adjacent. For example, the bases 13 and the connecting parts 14 are alternately arranged, and multiple bases 13 and multiple connecting parts 14 are formed on the same circuit board.

[0070] Multiple light sources 20 are arranged on the first faces 13a of the multiple bases 13 in one-to-one correspondence. One light source 20 may be arranged on each base 13, and the light source 20 may be a smart LED or multiple smart LEDs connected in a cascade.

[0071] A conductive lead is distributed on the multiple bases 13 and the multiple connecting parts 14, and the conductive lead electrically connects the multiple light sources 20 together. The conductive lead on the multiple connecting parts 14 is used for providing the multiple light sources 20 with a control signal, such as a CAN signal or a LIN signal. Each light source 20 comprises an LED and a light source control circuit that are electrically connected to each other. The light source control circuit is used for controlling an action of the LED according to a received control signal.

[0072] The first conductive wire group 30 is connected to the first solder pads 131 of the multiple bases 13, and connects the multiple bases 13 together. The first conductive wire group 30 comprises multiple conductive wire sections, each conductive wire section being an integral member, each conductive wire section of the first conductive wire group 30 being connected to at least two adjacent first solder pads 131 , and multiple conductive wire sections being independent of each other and being electrically connected to each other by meansof the first solder pads 131 . The second conductive wire group 40 is connected to the second solder pads 132 of the multiple bases 13, and connects the multiple bases 13 together. The second conductive wire group 40 comprises multiple conductive wire sections, each conductive wire section being an integral member, each conductive wire section of the second conductive wire group 40 being connected to at least two adjacent second solder pads 132, and multiple conductive wire sections being independent of each other and being electrically connected to each other by means of the second solder pads 132. The first conductive wire group 30 and the second conductive wire group 40 are used for providing a power signal to the multiple light sources 20. For example, one of the first conductive wire group 30 and the second conductive wire group 40 is used for electrically connecting to a positive electrode of a power source of an external drive circuit, and the other is used for electrically connecting to a negative electrode of the power source of the external drive circuit. An additionally provided first conductive wire group 30 and second conductive wire group 40 may provide greater power to the multiple light sources, which can satisfy large power application requirements of a vehicle outer signal lamp. The first conductive wire group 30 and the second conductive wire group 40 that are respectively soldered to the first solder pad 131 and the second solder pad 132 are located on the first faces 13a of the multiple bases 13, and are respectively located at two ends of the flexible light strip 100 along the width direction W. In the width direction W, the multiple light sources 20 are located between the first conductive wire group 30 and the second conductive wire group 40, and the multiple connecting parts 14 are also located between the first conductive wire group 30 and the second conductive wire group 40.

[0073] In this embodiment, multiple conductive wire sections are used toconnect multiple bases 13, which can ensure flexibility of the flexible light strip 100. Moreover, when manufacturing the flexible light strip 100, since the length of each conductive wire section is not too long, deformation of the conductive wire section is smaller, which can increase soldering yield, reducing the stress on the multiple bases 13 due to the first conductive wire group 30 and the second conductive wire group 40, facilitating production and manufacture of the flexible light strip 100, increasing product yield.

[0074] In this embodiment, each conductive wire section of the first conductive wire group 30 and each conductive wire section of the second conductive wire group 40 are all a conductive metal frame, such as a copper wire frame. The conductive metal frame is typically a flat shape, and a cross section of the conductive wire section in a thickness direction H of the flexible light strip is rectangular, the thickness direction being perpendicular to the length direction L and the width direction W. Moreover, preferably, as shown in Fig. 1 d, the first solder pad 131 that connects two conductive wire sections that are adjacent in the first conductive wire group 30 and the second solder pad 132 that connects two conductive wire sections that are adjacent in the second conductive wire group 40 are located on different bases 13. In general, a solder point P11 of the conductive wire section in the first conductive wire group 30 and the first solder pad 131 and a solder point P12 of the conductive wire section in the second conductive wire group 40 and the second solder pad 132 both have greater stress; this stress is distributed on different bases 13, avoiding excessive concentration of stress on the same base 13, which can facilitate manufacture of the flexible light strip 100, while increasing the yield of the flexible light strip 100.

[0075] In some embodiments, the flexible light strip 100 has freedom to bend in any way in three-dimensional space, to adapt to different modellingscenarios. To ensure bending performance of the flexible light strip 100, as shown in Fig. 1 d, each connecting part 14 can be configured to comprise two narrow branches 141 , front faces of the two branches 141 being respectively provided with a conductive lead for transmitting a control signal, and the front faces of the two branches 141 being side faces on the same side as the first faces 13a of the bases 13; in this way, the flexible circuit board 10 only requires a conductive wire to be laid on the first face 13a, simplifying the manufacturing process of the flexible circuit board 10. Each of the branches 141 has a bending part 141 a. A hollow part 15 is provided between two bases 13 that are adjacent, and the bending part 141 a has freedom to deform toward the hollow part 15. When the flexible light strip 100 bends, the bending part 141 a can be stretched or bent, to realize a flexible light strip 100 of various forms.

[0076] It should be explained that each connecting part 14 may also only include one branch, and a front face and a back face of this branch are respectively provided with a conductive lead for transmitting a control signal. In addition, each branch 141 may comprise one bending part 141a, or may also comprise 2, 3 or any other number of bent parts. The shape of the bending part 141 a may be approximately a C shape, semicircle or arc shape.

[0077] In order to achieve 3D bending of the flexible light strip 100, the width and the thickness of the connecting part 14 can both be set to be smaller. For example, the thickness of the connecting part 14 is equal to the thickness of the base 13, and the thicknesses of the connecting part 14 and the base 13 are both less than or equal to 0.5 mm, and the two are made of the same circuit board. The width of the connecting part 14 may be less than 1 / 2 the width of the base 13; for example, the width of the connecting part 14 may be less than 2 mm. A thinner and narrower connecting part 14 readily deforms, achieving3D bending of the flexible light strip.

[0078] Further, the conductive wire section of the first conductive wire group 30 comprises a first solder part 31 and a first bent part 32 that are connected to each other, the first solder part 31 being soldered to the first solder pad 131 , and the first bent part 32 being located between two of the bases 13 that are adjacent. The conductive wire section of the second conductive wire group 40 comprises a second solder part41 and a second bent part 42 that are connected to each other, the second solder part 41 being soldered to the second solder pad 132, and the second bent part 42 being located between two of the bases 13 that are adjacent. The first bent part 32 and the second bent part42 have freedom to deform toward the hollow part 15. When the flexible light strip 100 bends, the first bent part 32 and the second bent part 42 can be stretched or bent, to realize a flexible light strip 100 of various forms.

[0079] In this embodiment, the first bent part 32 and the second bent part 42 have the same shape. The first bent part 32 and the second bent part 42 that are located between two bases 13 that are adjacent are mutually axially symmetric. The first bent part 32 itself is also an axially symmetric structure, and the second bent part 42 is also itself an axially symmetric structure. The first bent part 32 comprises 3 bends, and the shape of the bend is approximately a C shape. The second bent part 42 also comprises 3 bends, and the shape of the bend is approximately a C shape. In other embodiments, the first bent part 32 and the second bent part 42 may have the same shape or also may have different shapes. The first bent part 32 may comprise 1 bend, 2 bends, 3 bends or any other number of bends, and the shape of the bend may be approximately a C shape, a semicircle or an arc shape. The second bent part 42 may comprise 1 bend, 2 bends, 3 bends or any other number of bends, and the shape of the bend may beapproximately a C shape, a semicircle or an arc shape.

[0080] In this embodiment, as shown in Fig. 1 d, the flexible light strip 100 further comprises multiple reinforcement parts 50, the multiple reinforcement parts 50 being arranged on second faces 13b of the multiple bases 13 in one-to-one correspondence, and the second faces 13b of the bases 13 being arranged opposite the first faces 13a of the bases 13. The reinforcement part 50 may be a hard metal plate; for example, the reinforcement part 50 is a heat-dissipating aluminium plate, and the light source 20 and the reinforcement part 50 are respectively stacked on the first face 13a and the second face 13b of the base 13; the reinforcement part 50 may be used for supporting the light source 20 and dissipating heat of the light source 20.

[0081] In this embodiment, as shown in Fig. 1 d, each conductive wire section of the first conductive wire group 30 comprises a first cutting point 33, and the first cutting point 33 may be located on the first bent part 32. Specifically, the first cutting point 33 is located on an outer side face at the middle of the first bent part 32 and facing outward in the width direction W. The first cutting point 33 is a mark left by cutting the conductive metal frame during manufacturing. Multiple first cutting points 33 may be provided; for example, the number of first cutting points 33 is the same as the number of first bent parts 32. In other embodiments, the position of the first cutting point 33 may also be located at the first soldering part 31 , and the number thereof may be another value; the present application does not specifically limit this.

[0082] Each conductive wire section of the second conductive wire group 40 comprises a second cutting point 43, and the second cutting point 43 may be located on the second bent part 42. Specifically, the second cutting point 43 is located on an outer side face at the middle of the second bent part 42 and facing outward in the width direction W. The second cutting point 43 is also a mark left by cutting the conductivemetal frame during manufacturing. Multiple second cutting points 43 may be provided, for example the same as the number of second bent parts 42. In other embodiments, the position of the second cutting point 43 may also be located at the second soldering part 41 , and the number thereof may be another value; the present application does not specifically limit this.

[0083] As shown in Figs. 1 b - 1 c and Fig. 1 e, the conductive wire section of the first conductive wire group 30 comprises a third type of conductive wire section 83 and a fourth type of conductive wire section 84. The third type of conductive wire section 83 comprises three first bent parts 32 and four first soldering parts 31 , and the third type of conductive wire section 83 may be used for connecting four of the bases 13 that are adjacent. The fourth type of conductive wire section 84 comprises four first bent parts 32 and five first soldering parts 31 , and the fourth type of conductive wire section 84 may be used for connecting five of the bases 13 that are adjacent. The conductive wire section of the second conductive wire group 40 also comprises the third type of conductive wire section and the fourth type of conductive wire section 84. The third type of conductive wire section 83 comprises three second bent parts 42 and four second soldering parts 41 , and the third type of conductive wire section 83 is used for connecting four of the bases 13 that are adjacent. The fourth type of conductive wire section 84 comprises four second bent parts 42 and five second soldering parts 41 , and the fourth type of conductive wire section 84 is used for connecting five of the bases 13 that are adjacent.

[0084] In some other embodiments, the multiple conductive wire sections of the first conductive wire group 30 may comprise one or more types of conductive wire sections. The multiple conductive wire sections of the second conductive wire group 40 also comprise one or more types of conductive wire sections. Moreover, the conductive wire section of thefirst conductive wire group 30 and the conductive wire section of the second conductive wire group 40 may be respectively selected from various types of conductive wire sections, such as being respectively selected from at least one of the first type of conductive wire section, the second type of conductive wire section, the third type of conductive wire section 83 and the fourth type of conductive wire section 84. The first type of conductive wire section may be used for connecting two bases 13 that are adjacent; the second type of conductive wire section may be used for connecting three bases 13 that are adjacent; the third type of conductive wire section 83 may be used for connecting four of the bases 13 that are adjacent; the fourth type of conductive wire section 84 is used for connecting five bases 13 that are adjacent. These various basic conductive wire sections may be joined to form any length, to adapt to flexible circuit boards 10 of different lengths.

[0085] Fig. 2a shows a three-dimensional structural schematic drawing of a conductive metal frame 93 for manufacturing a third type of conductive wire section 83 shown in Fig. 1 c. Fig. 2b shows a three- dimensional structural schematic drawing of a conductive metal frame 94 for manufacturing a fourth type of conductive wire section 84 shown in Fig. 1 c. As shown in Figs. 2a - 2b, the third type of conductive wire section 83 can be obtained by means of cutting the third type of conductive metal frame 93, and the fourth type of conductive wire section 84 can be obtained by means of cutting the fourth type of conductive metal frame 94. A connecting frame 70 is further respectively comprised in the conductive metal frames 93 and 94, the connecting frame 70 being used for connecting two conductive wire sections together that are adjacent; after the connecting frame 70 is cut off, the two conductive wire sections that are adjacent are separated, and the cutting points 33 and 43 described herein are leftat the corresponding cutting positions of the conductive wire sections. In addition, the connecting frame 70 typically further comprises a positioning hole 71 , and the positioning hole 71 may be used for cooperative positioning with the flexible circuit board 10; for example, positioning may be achieved by means of a visual system or a positioning post on a jig, facilitating soldering of the conductive metal frame to the flexible circuit board 10.

[0086] Fig. 3a is a three-dimensional structural schematic drawing of a flexible light strip 100 provided in a second embodiment of the present application. Fig. 3b is a three-dimensional structural schematic drawing of a first portion P1 of the flexible light strip 100 shown in Fig. 3a. Fig. 3c is a three-dimensional structural schematic drawing of a second portion P2 of the flexible light strip shown in Fig. 3a. As shown in Figs. 3a - 3c, the flexible light strip 100 of the second embodiment is similar to that of the first embodiment, mainly differing in that, in the second embodiment, the cutting point is located at the soldering part, for example, the first cutting point 33 being located at the first soldering part 31 , and the second cutting point 43 being located at the second soldering part 41 . In contrast, the soldering point of the first embodiment is located at the bent part. In addition, the first bent part 32 and the second bent part 42 respectively only comprise one bend, whereas the first bent part 32 and the second bent part 42 of the first embodiment respectively comprise three bends.

[0087] Fig. 4a shows a three-dimensional structural schematic drawing of a conductive metal frame 93 for manufacturing a third type of conductive wire section 83 shown in Fig. 3b. Fig. 4b shows a three- dimensional structural schematic drawing of a conductive metal frame 94 for manufacturing a fourth type of conductive wire section 84 shown in Fig. 3b. As shown in Figs. 4a - 4b, the third type of conductive wire section 83 can be obtained by means of cutting thethird type of conductive metal frame 93, and the fourth type of conductive wire section 84 can be obtained by means of cutting the fourth type of conductive metal frame 94.

[0088] Fig. 5a is a three-dimensional structural schematic drawing of a flexible light strip 100 provided in a third embodiment of the present application. Fig. 5b is a three-dimensional structural schematic drawing of a first portion P1 of the flexible light strip 100 shown in Fig. 5a. Fig. 5c is a three-dimensional structural schematic drawing of a second portion P2 of the flexible light strip shown in Fig. 5a. As shown in Figs. 5a - 5c, the flexible light strip 100 of the third embodiment is similar to that of the first embodiment, mainly differing in that, in the third embodiment, the first cutting point 33 is located on a side part of the first bent part 32, rather than at a middle position. The second cutting point 43 is located on a side part of the second bent part 42, rather than at a middle position.

[0089] Fig. 6a shows a three-dimensional structural schematic drawing of a conductive metal frame 93 for manufacturing a third type of conductive wire section 83 shown in Fig. 5b. Fig. 6b shows a three- dimensional structural schematic drawing of a conductive metal frame 94 for manufacturing a fourth type of conductive wire section 84 shown in Fig. 5b. As shown in Figs. 6a - 6b, the third type of conductive wire section 83 can be obtained by means of cutting the third type of conductive metal frame 93, and the fourth type of conductive wire section 84 can be obtained by means of cutting the fourth type of conductive metal frame 94. When another type of conductive wire section is used in the flexible light strip, it is correspondingly necessary to use another type of conductive metal frame. This is not described again individually here.

[0090] Fig. 7 is a flowchart of a manufacturing method for a flexible light strip100 provided in embodiments of the present application. As shown inFig. 7, embodiments of the present application further provide a manufacturing method for a flexible light strip; this manufacturing method can manufacture the flexible light strip 100 described according to any one of the above embodiments. The manufacturing method comprises the following steps:

[0091] S1 : providing a flexible circuit board assembly, the flexible circuit board assembly comprising multiple flexible circuit boards 10, and the multiple flexible circuit boards being connected to each other.

[0092] S2: providing multiple light sources 20, correspondingly soldering the multiple light sources to the multiple flexible circuit boards 10.

[0093] S3: providing multiple conductive metal frames, such as a conductive metal frame 83 and a conductive metal frame 84, and correspondingly soldering the multiple conductive metal frames to the multiple flexible circuit boards.

[0094] S4: cutting the flexible circuit board assembly and the multiple conductive metal frames to form the flexible light strip 100 described according to any one of the above embodiments.

[0095] In some embodiments, a co-extrusion process may further be used to extrude an outer shell on the flexible light strip 100, and the outer shell may be used for sealing the flexible light strip 100, achieving waterproofing and dustproofing. The outer shell may comprise a silicone rubber material and is flexible as a whole. In addition, the outer shell may comprise a reflective layer and an emergent light layer that are extruded integrally and connected to each other; the reflective layer is used for reflecting light emitted by the light source 20, and the emergent light layer may transmit light emitted by the light source 20 to the outside, achieving a more uniform and efficient illumination effect.

[0096] Embodiments of the present application further provide a motor vehicle, this motor vehicle comprising the flexible light strip 100described according to any one of the above embodiments.

[0097] Although the present application has been described with reference to the drawings, the embodiments disclosed in the drawings are intended to provide an exemplary illustration of preferred embodiments of the present application, and should not be construed as limiting the present application. The dimensional proportions in the drawings are merely schematic, and must not be construed as limiting the present application.

[0098] Although some embodiments of the general concept of the present application have been shown and explained, those skilled in the art will understand that the present application may further comprise other equivalent embodiments without departing from the general inventive concept of the present application, and the scope of protection of the present application is defined by the claims.

Claims

Claims

1. Flexible light strip (100), characterized by comprising: a flexible circuit board (10), which comprises a first end (11 ) and a second end (12) that are arranged opposite each other, the flexible circuit board extending along a length direction (L) of the flexible light strip from the first end to the second end, and the flexible circuit board comprising: multiple bases (13), which are spaced apart from each other along the length direction, each of the bases comprising a first solder pad (131 ) and a second solder pad (132); and multiple connecting parts (14), which connect the multiple bases together, each of the connecting parts being connected between two of the bases that are adjacent; multiple light sources (20), which are correspondingly arranged on first faces (13a) of the multiple bases; a first conductive wire group (30), which is connected to the first solder pads of the multiple bases and connects the multiple bases together, the first conductive wire group comprising multiple conductive wire sections, each conductive wire section of the first conductive wire group being connected to at least two of the first solder pads that are adjacent; and a second conductive wire group (40), which is connected to the second solder pads of the multiple bases and connects the multiple bases together, the second conductive wire group comprising multiple conductive wire sections, each conductive wire section of the second conductive wire group being connected to at least two of the second solder pads that are adjacent.

2. Flexible light strip according to Claim 1 , wherein each conductive wire section of the first conductive wire group and each conductive wire section of the second conductive wire group are all a conductive metal frame.

3. Flexible light strip according to Claim 1 , wherein the first solder pad that connects two conductive wire sections that are adjacent in the first conductive wire group and the second solder pad that connects two conductive wire sections that are adjacent in the second conductive wiregroup are located on different bases.

4. Flexible light strip according to Claim 1 , wherein multiple conductive wire sections of the first conductive wire group comprise one or multiple types of conductive wire sections; multiple conductive wire sections of the second conductive wire group comprise one or multiple types of conductive wire sections.

5. Flexible light strip according to Claim 4, wherein the conductive wire section of the first conductive wire group and the conductive wire section of the second conductive wire group are respectively selected from at least one of a first type of conductive wire section, a second type of conductive wire section, a third type of conductive wire section (83) and a fourth type of conductive wire section (84); the first type of conductive wire section is used for connecting two of the bases that are adjacent; the second type of conductive wire section is used for connecting three of the bases that are adjacent; the third type of conductive wire section is used for connecting four of the bases that are adjacent; the fourth type of conductive wire section is used for connecting five of the bases that are adjacent.

6. Flexible light strip according to Claim 1 , wherein a conductive lead is distributed on the multiple bases and the multiple connecting parts, and the conductive lead electrically connects the multiple light sources together; the conductive lead on the multiple connecting parts is used for providing a control signal to the multiple light sources; the first conductive wire group and the second conductive wire group are used for providing a power signal to the multiple light sources.

7. Flexible light strip according to Claim 6, wherein each of the light sources comprises an LED and a light source control circuit that are electrically connected to each other; the light source control circuit is used for controlling an action of the LEDaccording to the control signal that is received.

8. Flexible light strip according to Claim 1 , wherein the first solder pad and the second solder pad are both located on the first face (13a) of the base, and are respectively located on two sides of the light source along a width direction (W) of the flexible light strip; the first conductive wire group and the second conductive wire group that are respectively soldered to the first solder pad and the second solder pad are located on the first faces of the multiple bases, and are respectively located at two ends of the flexible light strip along the width direction (W); in the width direction, the multiple light sources are located between the first conductive wire group and the second conductive wire group, and the connecting part is located between the first conductive wire group and the second conductive wire group.

9. Flexible light strip according to any one of Claims 1 to 8, wherein the flexible light strip has freedom to bend in any way in three-dimensional space; each of the connecting parts comprises two branches (141 ), and each of the branches has a bending part (141a); a hollow part (15) is provided between two of the bases that are adjacent, and the bending part has freedom to deform toward the hollow part.

10. Flexible light strip according to Claim 9, wherein a thickness of the connecting part is equal to a thickness of the base; a thickness of the connecting part and the base is less than or equal to 0.5 mm; a width of the connecting part is less than 1 / 2 of a width of the base, and the width of the connecting part is less than 2 mm.

11. Flexible light strip according to Claim 9, wherein the conductive wire section of the first conductive wire group comprises a first solder part (31 ) and a first bent part (32) that are connected to each other, the first solder part being soldered to the first solder pad, and the first bent part being located between two of the bases that are adjacent; the conductive wire section of the second conductive wire group comprisesa second solder part (41 ) and a second bent part (42) that are connected to each other, the second solder part being soldered to the second solder pad, and the second bent part being located between two of the bases that are adjacent; the first bent part and the second bent part have freedom to deform toward the hollow part.

12. Flexible light strip according to Claim 11 , wherein each conductive wire section of the first conductive wire group comprises a first cutting point (33), the first cutting point being located at the first solder part or the first bent part; each conductive wire section of the second conductive wire group comprises a second cutting point (43), the second cutting point being located at the second solder part or the second bent part.

13. Flexible light strip according to any one of Claims 1 to 8, further comprising multiple reinforcement parts (50), the multiple reinforcement parts being correspondingly arranged on second faces (13b) of the multiple bases, the second face and the first face of the base being arranged opposite each other; the reinforcement part is a hard metal plate, and the reinforcement part is used for supporting the light source and dissipating heat of the light source.

14. Manufacturing method for a flexible light strip, characterized by comprising the following steps:S1 : providing a flexible circuit board assembly, the flexible circuit board assembly comprising multiple flexible circuit boards (10), and the multiple flexible circuit boards being connected to each other;S2: providing multiple light sources (20), and soldering the multiple light sources to the multiple flexible circuit boards (10);S3: providing multiple conductive metal frames, and soldering the multiple conductive metal frames to the multiple flexible circuit boards;S4: cutting the flexible circuit board assembly and the conductive metal frames to form the flexible light strip (100) according to any one of Claims 1 to

15. Motor vehicle, characterized in that the motor vehicle comprises the flexible light strip according to any one of Claims 1 to 13.

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