Flexible LED lamp strip

Abstract

The utility model relates to the technical field of LED lamp strips, and discloses a flexible LED lamp strip which comprises a PFC flexible circuit board, lamp beads are arranged on the front side of the PFC flexible circuit board, a control box is arranged at the left end of the PFC flexible circuit board, and a rear plate is installed on the rear side of the PFC flexible circuit board through clamping. When the PFC flexible circuit board is bent in the using process, as the limiting opposite sides limit the PFC flexible circuit board, the limiting plates can be reinforced through elastic force generated by the springs in the bending process, then the PFC flexible circuit board is reinforced and limited, distortion and damage are avoided, and when the PFC flexible circuit board is powered on for use, the PFC flexible circuit board is prevented from being damaged. Due to the fact that the front sides of the heat dissipation fins are attached to the heat conduction fins, heat on the inner side of the lamp strip can be effectively absorbed through the heat conduction fins and conducted to the heat dissipation fins, then the heat can be brought out when external air passes through, the heat dissipation efficiency is improved, and the situation that the lamp strip is damaged and the service life is shortened due to heat accumulation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED lamp strip technical field, concretely is a kind of flexible LED lamp strip. BACKGROUND

[0002] With the continuous improvement of people's living standards, the use of LED lamp strip is also more and more popular, in the prior art, flexible LED lamp strip includes cladding layer extending along the length direction of lamp strip, flexible circuit board extending along the length direction of lamp strip and a plurality of SMD LEDs welded on the flexible circuit board, the cladding layer is sleeve-shaped to cover the flexible circuit board unit, SMD LED chip, the end of flexible circuit board has an electrical connection part.

[0003] According to the search, Chinese patent document, announcement number: CN207831052U, discloses a kind of, by flexible LED lamp strip in its electrical connector setting outer slot and inner slot, for respectively for the end of lamp strip body and flexible circuit board end head insertion, while realizing with lamp strip electrical connection, by inner slot directly to flexible circuit board is directly fixed, while outer slot also fixes lamp strip end head, guarantee the stability of fixed between lamp strip body and electrical connector and the stability of electrical connection, without worrying about the relative location of circuit board and cladding layer on lamp strip body to the stability of electrical connection is impacted.But in the process of use, when flexible LED lamp strip is bent, it is easy to cause lamp bead and slot wall part extrusion each other, it is easy to cause lamp bead damage, and lamp strip is prone to positional deviation, in turn, it is easy to cause folding distortion phenomenon, not only cause late adjustment trouble, while lamp strip is prone to damage, circuit short-circuiting is shown, while in the process of use, lamp strip circuit is connected and heat is generated, long-term use is prone to appear heat dissipation rate reduction, temperature rise and lead to service life reduction or short-circuit damage. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of flexible LED lamp strip, with efficient heat dissipation effect, improve lamp strip service life, while with the lamp strip limiting effect, improve the connection stability of lamp strip and cladding layer, avoid the bending folding and improve the use convenience, and the whole dismounting is convenient and fast The advantages of, solve the above technical problems.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: a flexible LED lamp strip, including PFC flexible circuit board, the positive side of PFC flexible circuit board is provided with lamp pearl, the left end of PFC flexible circuit board is provided with control box, the back of PFC flexible circuit board is installed with back plate through card, the back of back plate is fixedly installed with mounting plate and heat dissipation fin, the positive side of back plate is fixedly installed with limit post, the outer side of limit post is movably installed with limit plate, the positive side of PFC flexible circuit board is installed with front plate through card, fixed frame is installed between back plate and front plate through card.

[0008] Preferably, the PFC flexible circuit board is in a U-shaped structure, a plurality of equidistantly arranged through holes are formed in the front side of the PFC flexible circuit board, and a plurality of equidistantly arranged heat-conducting fins are fixedly installed on the back side of the PFC flexible circuit board.

[0009] Through the above technical scheme, under the action of the heat-conducting fins, heat conduction of the lamp strip is facilitated, heat dissipation is facilitated, and during combined installation, the first connecting hole and the second connecting hole are used to facilitate connection and fixation by using bolts.

[0010] Preferably, a first matching groove is formed in the front side of the back plate, a first protruding plate is fixedly installed on the top side and the bottom side of the back plate respectively, a first mounting hole is formed in the back side of the back plate, and heat dissipation fins are fixedly installed on the inner side of the first mounting hole.

[0011] Through the above technical scheme, under the action of the first matching groove, the back side of the PFC flexible circuit board is facilitated to be installed by clamping, under the action of the first protruding plate, the fixed frame is facilitated to be limited, and through the heat dissipation fins, heat can be taken out when external air passes, thereby improving the heat dissipation efficiency.

[0012] Preferably, two mounting plates are provided, the mounting plate, the back plate, the front plate and the fixed frame are made of rubber material, a second mounting hole is formed in the back side of the mounting plate, the limit plates are installed on the outer side of the limit posts by clamping respectively, springs are arranged on the side of the limit plates close to the back plate and the front plate, and the limit posts are installed in the through holes by clamping.

[0013] Through the above technical scheme, under the action of the mounting plate and the second mounting hole, the lamp strip is facilitated to be installed by using screws, and the PFC flexible circuit board is limited by the opposite sides of the limit plates, so that the limit plates are reinforced by the elastic force generated by the springs when being bent, thereby the PFC flexible circuit board is reinforced and limited, and damage caused by twisting is avoided.

[0014] Preferably, the rear side of the front plate is provided with a second matching slot, the outer side of the front plate is fixedly provided with a second protruding plate, the middle part of the front plate is provided with a connecting plate, and the connecting plate is made of rubber material, and a flexible transparent soft shell is arranged between the connecting plate and the front plate.

[0015] Through the above technical scheme, under the action of the flexible transparent soft shell, the light generated by the lamp bead is facilitated to be transmitted and bent, the flexibility of the whole is improved, and the connecting plate made of rubber material is beneficial to bending when folding.

[0016] Preferably, the fixed frame is in a U-shaped structure, the top side and the bottom side of the fixed frame are respectively provided with a second connecting hole, the inner side of the fixed frame is fixedly provided with a clamping strip, and the left end of the clamping strip is provided with a second threaded hole.

[0017] Through the above technical scheme, the fixed frame is clamped from the right end of the PFC flexible circuit board, at this time, after the clamping strip is clamped in the grooves between the first protruding plate and the second protruding plate, the bolt is used to pass through the first connecting hole and the second threaded hole for connection, which is convenient to disassemble and assemble, and the overall protection is high.

[0018] Compared with the prior art, the flexible LED lamp strip has the following beneficial effects:

[0019] 1. The first matching slot on the rear plate is clamped with the PFC flexible circuit board, the limiting column is preferentially clamped with the through hole before clamping, the limiting plate is installed after the spring is put in, then the left end of the rear plate is parallel to the left end of the PFC flexible circuit board by pulling, then the front plate is pushed and pulled to clamp the right end of the PFC flexible circuit board through the second matching slot, the limiting plate is clamped first, then the spring is put in, and then the fixed frame is pushed into the right end for clamping and connected by using the bolt, which is convenient to disassemble and assemble, and the overall protection is high.

[0020] 2. When the flexible LED lamp strip is bent during use, the opposite side of the limiting position is used to limit the PFC flexible circuit board, so that the spring generated during bending can reinforce the limiting plate, thereby reinforcing and limiting the PFC flexible circuit board, and avoiding damage caused by twisting.

[0021] 3. When the flexible LED lamp strip is used, the positive side of the heat dissipation fin is attached to the heat conduction sheet, so that the heat conduction sheet can effectively absorb the heat inside the lamp strip and conduct it to the heat dissipation fin, thereby facilitating the heat to be taken out when the external air passes, thereby improving the heat dissipation efficiency, avoiding damage to the lamp strip caused by heat accumulation, and reducing the service life. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1It is the whole three-dimensional structure schematic view of the utility model;

[0023] Fig. 2 It is the rear view structure schematic view of the utility model;

[0024] Fig. 3 It is the three-dimensional structure schematic view of the PFC flexible circuit board of the utility model;

[0025] Fig. 4 It is the three-dimensional structure schematic view of the rear plate of the utility model;

[0026] Fig. 5 It is the three-dimensional structure schematic view of the front plate of the utility model;

[0027] Fig. 6 It is the three-dimensional structure schematic view of the fixed frame of the utility model.

[0028] 1, PFC flexible circuit board, 2, lamp bead, 3, control box, 4, rear plate, 5, mounting plate, 6, limiting column, 7, limiting plate, 8, front plate, 9, heat dissipation fin, 10, fixed frame, 101, through hole, 102, heat conduction piece, 103, first connecting hole, 104, first threaded hole, 401, first matching groove, 402, first protruding plate, 403, first mounting hole, 501, second mounting hole, 801, second matching groove, 802, second protruding plate, 803, connecting plate, 804, flexible transparent soft shell, 1001, second connecting hole, 1002, clamping strip. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Embodiment one:

[0031] As shown in Figs. 1-6 The utility model provides a kind of flexible LED lamp strip, including PFC flexible circuit board 1, the positive side of PFC flexible circuit board 1 is provided with lamp bead 2, the left end of PFC flexible circuit board 1 is provided with control box 3, the rear side of PFC flexible circuit board 1 is equipped with rear plate 4 by card, the rear side of rear plate 4 is fixedly installed with mounting plate 5 and heat dissipation fin 9, the positive side of rear plate 4 is fixedly installed with limiting column 6, the outer side of limiting column 6 is movably installed with limiting plate 7, the positive side of PFC flexible circuit board 1 is equipped with front plate 8 by clamping, and fixed frame 10 is clamped and installed between rear plate 4 and front plate 8.

[0032] Specifically, the PFC flexible circuit board 1 has an I-shaped structure. Several equidistant through holes 101 are opened on the front side of the PFC flexible circuit board 1. Several equidistant heat-conducting sheets 102 are fixedly installed on the rear side of the PFC flexible circuit board 1. A first connection hole 103 is opened at the left end of the PFC flexible circuit board 1, and first threaded holes 104 are opened on the top and bottom sides of the PFC flexible circuit board 1. The advantages are that the heat-conducting sheets 102 facilitate heat conduction of the light strip, making heat dissipation convenient. Furthermore, during assembly, the first connection hole 103 and the first connection hole 104 facilitate connection and fixation using bolts.

[0033] Specifically, a first fitting groove 401 is provided on the front side of the rear plate 4, and a first protrusion 402 is fixedly installed on the top and bottom sides of the rear plate 4, respectively. A first mounting hole 403 is provided on the rear side of the rear plate 4, and a heat dissipation fin 9 is fixedly installed on the inner side of the first mounting hole 403. The advantages are that the first fitting groove 401 facilitates engagement and installation with the rear side of the PFC flexible circuit board 1, and the first protrusion 402 facilitates the limiting of the fixing frame 10. Moreover, the heat dissipation fin 9 helps to carry away heat when outside air passes through, thereby improving heat dissipation efficiency.

[0034] Specifically, there are two mounting plates 5, and the mounting plates 5, rear plate 4, front plate 8, and fixing frame 10 are made of rubber. A second mounting hole 501 is provided on the rear side of the mounting plate 5. Limiting plates 7 are respectively installed on the outer sides of the limiting posts 6 via snap-fit. Springs are provided on the side of the limiting plates 7 near the rear plate 4 and front plate 8. The limiting posts 6 are installed on the inner side of the through hole 101 via snap-fit. The advantages are that the mounting plates 5 and the second mounting hole 501 facilitate the installation of the light strip, and the opposite sides of the limiting plates 7 limit the PFC flexible circuit board 1, thereby facilitating the reinforcement of the limiting plates 7 by the elastic force generated by the springs when bending, thus reinforcing and limiting the PFC flexible circuit board 1 and preventing twisting damage.

[0035] Example 2:

[0036] like Figs. 1-6 As shown, this is an improvement on the previous embodiment. Specifically, a second fitting groove 801 is provided on the rear side of the front plate 8, a second protruding plate 802 is fixedly installed on the outer side of the front plate 8, a connecting plate 803 is provided in the middle of the front plate 8, and the connecting plate 803 is made of rubber. A flexible transparent shell 804 is provided between the connecting plate 803 and the front plate 8. The advantage is that the flexible transparent shell 804 facilitates the transmission of light generated by the lamp bead 2 and makes it easy to bend, improving the overall flexibility. Moreover, the rubber material used for the connecting plate 803 facilitates bending when folding is required.

[0037] Specifically, the fixed frame 10 is in a U-shaped structure, and the top side and the bottom side of the fixed frame 10 are respectively provided with a No. 1001 connecting hole, and the inner side of the fixed frame 10 is fixedly installed with a clamping strip 1002, and the left end of the clamping strip 1002 is provided with a No. 1002 threaded hole. The advantage is that the fixed frame 10 is clamped from the right end of the PFC flexible circuit board 1, and at this time, the clamping strip 1002 is clamped in the groove between the No. 402 protruding plate and the No. 802 protruding plate, and then the bolt is connected through the No. 103 connecting hole and the No. 1002 threaded hole, which is convenient to disassemble and assemble, and has high overall protection.

[0038] In use, the No. 401 fitting groove on the rear plate 4 is clamped with the PFC flexible circuit board 1, and before clamping, the limiting column 6 is preferentially clamped with the through hole 101, and the limiting plate 7 is installed after the spring is put in, then the left end of the rear plate 4 is pulled to be parallel with the left end of the PFC flexible circuit board 1, then the front plate 8 is pushed and pulled to be clamped with the right end of the PFC flexible circuit board 1 through the No. 801 fitting groove, and when clamping, the limiting plate 7 is clamped first, then the spring is put in, then the fixed frame 10 is pushed into the right end to be clamped, and then the bolt is connected, which is convenient to disassemble and assemble, and has high overall protection, and when bending in use, the opposite side of the limiting plate 7 limits the PFC flexible circuit board 1, so that the spring generated during bending reinforces the limiting plate 7, thereby reinforcing and limiting the PFC flexible circuit board 1, avoiding damage due to twisting, and when being electrified, the normal side of the heat dissipation fin 9 is attached to the heat conduction sheet 102, so that the heat dissipation fin 9 can effectively absorb the heat inside the lamp strip through the heat conduction sheet 102 and conduct the heat to the heat dissipation fin 9, thereby facilitating the heat to be taken out when the external air passes, thereby improving the heat dissipation efficiency, avoiding damage of the lamp strip due to heat accumulation, and reducing the service life.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible LED light strip comprising a PFC flexible circuit board (1), characterized in that: The PFC flexible circuit board (1) has an LED bead (2) on its front side, a control box (3) on its left side, a rear plate (4) on its rear side by means of a snap-fit, an mounting plate (5) and a heat sink fin (9) fixedly mounted on the rear side of the rear plate (4), a limiting post (6) fixedly mounted on the front side of the rear plate (4), a limiting plate (7) movably mounted on the outer side of the limiting post (6), a front plate (8) on its front side by means of a snap-fit, and a fixing frame (10) between the rear plate (4) and the front plate (8) by means of a snap-fit.

2. The flexible LED light strip of claim 1, wherein: The PFC flexible circuit board (1) has an I-shaped structure. Several through holes (101) are arranged at equal intervals on the front side of the PFC flexible circuit board (1). Several heat-conducting sheets (102) are fixedly installed on the rear side of the PFC flexible circuit board (1). A No. 1 connection hole (103) is opened at the left end of the PFC flexible circuit board (1). A No. 1 threaded hole (104) is opened on the top and bottom sides of the PFC flexible circuit board (1).

3. The flexible LED light strip of claim 1, wherein: A fitting groove (401) is provided on the front side of the rear plate (4), a protruding plate (402) is fixedly installed on the top and bottom sides of the rear plate (4), a mounting hole (403) is provided on the rear side of the rear plate (4), and a heat dissipation fin (9) is fixedly installed on the inner side of the mounting hole (403).

4. The flexible LED light strip of claim 2, wherein: The mounting plate (5) is provided in two parts, and the mounting plate (5), the rear plate (4), the front plate (8) and the fixing frame (10) are made of rubber material. The mounting plate (5) has a second mounting hole (501) on its rear side. The limiting post (6) is respectively fitted with a limiting plate (7) by snapping. The limiting plate (7) is provided with a spring on the side of the limiting plate (7) near the rear plate (4) and the front plate (8). The limiting post (6) is fitted with a through hole (101) on its inner side by snapping.

5. The flexible LED light strip of claim 1, wherein: The front plate (8) has a second fitting groove (801) on its rear side, and a second protruding plate (802) is fixedly installed on the outer side of the front plate (8). A connecting plate (803) is provided in the middle of the front plate (8), and the connecting plate (803) is made of rubber material. A flexible transparent soft shell (804) is provided between the connecting plate (803) and the front plate (8).

6. The flexible LED light strip of claim 1, wherein: The fixing frame (10) has a U-shaped structure, and the top and bottom sides of the fixing frame (10) are respectively provided with a No. 2 connecting hole (1001). A snap-fit ​​strip (1002) is fixedly installed on the inner side of the fixing frame (10), and a No. 2 threaded hole is provided on the left end of the snap-fit ​​strip (1002).

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