Decorative lamp string

Abstract

The decorative lamp string comprises a plurality of lamp bodies and a power line connected with the lamp bodies, each lamp body comprises a mask and a bottom plate covering an opening of the mask, a circuit board is installed in the mask, an LED light source is installed on the circuit board, the power line is electrically connected to the circuit board and extends out of the two sides of the mask, the mask comprises a top wall and a side wall, and the top wall and the side wall are arranged on the bottom plate. The top wall is provided with a lens integrally formed with the mask, two sides of the side wall are provided with wire grooves in interference fit with the power line, the combination surface of the end surface of the side wall and the bottom plate is provided with a waterproof step and a first welding rib which are clamped with each other, the first welding rib is fused and fixed on the waterproof step, the power line is a flat sheath wire, and the surface of the bottom plate is provided with a waterproof cover. A power line extends out of the wire groove, and the bottom plate tightly presses the power line in the wire groove. The waterproof LED lamp has the advantages of being good in waterproof performance, simple in structure, easy to assemble, high in production efficiency, low in production cost, good in durability and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a LED lamp, specifically disclose a decorative light string. BACKGROUND

[0002] The decorative light string comprises a plurality of lamp bodies and a power line connecting the plurality of lamp bodies, the lamp body comprises a lamp shell, a light source assembly is installed in the lamp shell, and the power line passes through the lamp shell and is connected to the light source assembly. When the decorative light string is used outdoors, a durable and reliable waterproof structure needs to be designed. One of the waterproof structures of the existing decorative light string is that the light source assembly and the power line are assembled into an integral whole, and then an integral lamp shell is formed outside the light source assembly through an injection molding process. Although this waterproof structure has good waterproof effect, it has the disadvantages of low production efficiency and high manufacturing cost due to the need for embedding components during injection molding. The second waterproof structure of the existing decorative light string is that a split shell is used, the light source assembly is installed in the lamp shell, and waterproof glue is injected into the lamp shell after the lamp shell is assembled. This structure has the disadvantages of high material consumption and poor waterproof durability. In addition, the power line of the existing decorative light string is a flat cable, and the surface of the flat cable is composed of a plurality of semicircular arcs, which requires the design of a matching wire slot on the lamp shell. The wire slot structure is complex, and the sealing of the power line is difficult. SUMMARY

[0003] Therefore, it is necessary to provide a decorative light string with good waterproofness, simple structure, easy assembly, high production efficiency, low production cost and good durability in view of the problems of the prior art.

[0004] To solve the problems of the prior art, the utility model discloses a decorative light string, which comprises a plurality of lamp bodies and a power line connecting the plurality of lamp bodies, the lamp body comprises a mask, a bottom plate covering the opening of the mask, a circuit board installed in the mask, and an LED light source installed on the circuit board, and the power line is electrically connected to the circuit board and extends from both sides of the mask, characterized in that: the mask comprises a top wall and a side wall, a lens is arranged on the top wall and integrally formed with the mask, wire slots are arranged on both sides of the side wall and in interference fit with the power line, a waterproof step and a first fusion rib that are mutually clamped are arranged on the end face of the side wall and the combined surface of the bottom plate, the first fusion rib is fused and fixed on the waterproof step, the power line is a flat sheathed wire, the power line extends from the wire slot, and the bottom plate presses the power line in the wire slot.

[0005] The utility model discloses a beneficial effect is: the utility model discloses on the waterproof of lamp body, adopts the assembly of face guard and bottom plate, and is provided with the first fusion joint and waterproof step of fusion on the assembly surface of both, this waterproof mode has waterproof good, simple structure, easy to assemble, high production efficiency, low production cost and good durability etc. advantage;On the waterproof of power cord, adopt flat sheath wire and the wire slot of interference fit with it, utilize the bottom plate and fix the power cord in the wire slot, because the surface of power cord sheath is flat, and the wire slot structure is simple, and the leakproofness is good.

[0006] As a further improvement of the utility model: the waterproof step is arranged on the face guard side wall end face, the first fusion joint is arranged on the bottom plate, and the first fusion joint is pressed on the power cord. The bottom plate is provided with a boss corresponding to the wire slot, and the boss is clamped into the wire slot and pressed on the power cord. The corners of the power cord on both sides are rounded, the corners of the wire slot bottom wall and side wall have a corresponding round corner of the power cord, and the boss on both sides has a corresponding arc protection edge of the power cord. A plurality of first waterproof ribs extending from the bottom wall to the side wall are sequentially arranged in the wire slot from inside to outside, wherein the innermost first waterproof rib is aligned with the first fusion joint, the boss is provided with a second waterproof rib aligned with the remaining first waterproof rib, and the first waterproof rib and the second waterproof rib are pressed on the power cord. The two sides of the boss are provided with a second fusion joint, and the second fusion joint is fused and fixed on the wire slot. The top end of the first fusion joint and the second fusion joint is a tapered structure. A plurality of support plates are vertically arranged on the bottom plate, a support rib is arranged on the inner side of the face guard, the circuit board is clamped between the support plates and the support rib, and the outer side of the support plate abuts against the inner side of the face guard side wall, so that the waterproof step and the first fusion joint between the face guard side wall end face and the bottom plate are aligned. A plurality of positioning ribs are arranged on the inner side of the face guard side wall, and the end face of the positioning rib is provided with a guide slope, the positioning rib abuts against the side face of the circuit board, so that the light source on the circuit board is located in the center of the lens. The inner side of the face guard is provided with a support rib, and the inner side of the bottom plate is provided with a support table, the circuit board is clamped between the support plates and the support rib, and the outer side of the bottom plate is provided with a blind hole recessed inwardly corresponding to the support table. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is one of the assembly schematic view of lamp body.

[0008] Figure 2 It is the second assembly schematic view of lamp body.

[0009] Figure 3 It is the structure schematic view of ground plug.

[0010] Figure 4 It is the structure schematic view of lamp body and ground plug assembly.

[0011] Figure 5For Figure 4 Structure diagram of the section A-A.

[0012] Figure 6 For Figure 4 Structure diagram of the section B-B.

[0013] Figure 7 For Figure 4 Structure diagram of the section C-C. DETAILED DESCRIPTION

[0014] In order to further understand the features, technical means and specific purposes and functions of the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments. The description of the position relationship between the components themselves and the components in the present application file (including but not limited to upper, lower, inner, outer, left, right, top and bottom, etc.) is only the relative relationship with the position of the relevant components shown in the drawings of the present application file as a reference, and does not indicate the absolute limitation of the protection scope of the utility model. The skilled in the art should understand that if the component view direction changes, the above position relationship description may change, but the mechanical structure essential relationship does not change.

[0015] Reference Figure 1 And Figure 2 A decorative lamp string, comprising a plurality of lamp bodies, a power line 4 connected to the plurality of lamp bodies and a ground plug 5 supporting the lamp bodies, the lamp body comprising a cover 1, a bottom plate 2 sealing the opening of the cover 1, a circuit board 3 installed in the cover 1, an LED light source 31 installed on the circuit board 3, and the power line 4 being electrically connected to the circuit board 3 and extending out from both ends of the cover 1.

[0016] Reference Figure 1 And Figure 2 The cover 1 comprises a top wall 11 and a side wall 12 surrounding the top wall 11. The top wall 11 is centrally provided with a lens 13 integrally formed with the cover 1, and the inside of the top wall 11 is provided with a support rib 14 surrounding the lens 13. The lens 13 is integrally formed with the top wall 11, and the waterproofness and installation convenience are better. The side wall 12 is provided with a wire groove 15 protruding outward from the outside of the side wall 12 on both sides, and the bottom wall of the wire groove 15 is provided with a rounded corner 152. A plurality of first waterproof ribs 151 extending from the bottom wall to the side wall are sequentially arranged in the wire groove 15 from inside to outside. The end face of the side wall 12 of the cover is provided with a waterproof step 17, and the inside of the side wall 12 is provided with a plurality of positioning ribs 18, and the top end of the positioning rib 18 is provided with a guide inclined surface 181. The guide inclined surface 181 can guide the circuit board 3 into the area defined by the positioning rib 18, so that the LED light source 31 on the circuit board 3 is located at the center of the lens 13.

[0017] Reference Figure 1 And Figure 2The inner side of the bottom plate 2 is provided with an annular first fusion rib 21 matched with the waterproof step 17 of the face guard 1. The top end of the first fusion rib 21 is a tapered structure 211, i.e. the width of the top end is smaller than that of the bottom end, so that the top end of the first fusion rib 21 can be fully melted during fusion to be fused with the waterproof step 17 of the face guard, and the bottom end can be clamped with the waterproof step 17 with sufficient strength. Four supporting plates 22 are vertically arranged in the area surrounded by the first fusion rib 21 on the inner side of the bottom plate 2, and the outer side surface 221 of the supporting plate 22 is matched with the inner side of the side wall 12 of the face guard, so that the first fusion rib 21 can be aligned with the waterproof step 17 on the face guard 1. The end of the supporting plate 22 is provided with a guide inclined surface 222, which can facilitate the assembly of the bottom plate 2 to the face guard 1. A supporting table 23 is arranged at the center of the inner side of the bottom plate 2, and a blind hole 24 is arranged on the outer side of the bottom plate 2 at the supporting table 23, which can be used to connect with the ground plug 5. A magnetic block 25 is attached around the periphery of the blind hole 24 on the outer side of the bottom plate 2, which can attract the lamp body to a magnetic metal such as iron. A hanging ear 26 is arranged outside the area surrounded by the first fusion rib 21 on the bottom plate 2, and a boss 27 matched with the wire groove 15 of the face guard is arranged on the hanging ear 26. The boss 27 is provided with a circular arc protection edge 271 on both edges, and a plurality of second waterproof ribs 272 aligned with the first waterproof rib 151 are arranged on the surface of the boss 27. A second fusion rib 261 is arranged on the hanging ear 26 on both sides of the boss 27, and the top end of the second fusion rib 261 is a tapered structure. A mounting hole 28 is further arranged on the hanging ear 26, and the lamp body can be mounted on a fixed object through the mounting hole 28 by screws. Due to the arrangement of the blind hole 24, the magnetic block 25 and the mounting hole 28 on the bottom plate 2, the utility model can realize various modes of installation, and has wider applicability.

[0018] Reference Figure 1 and Figure 2 The circuit board 3 is provided with a circuit, and the LED light source 31 is mounted on the front surface of the circuit board 3, and two rows of terminal posts 32 are arranged on the back surface of the circuit board 3. The power line 4 is a flat sheath wire matched with the wire groove 15, which includes a flat outer skin and a plurality of wires arranged in the outer skin. The power line 4 is connected to the terminal posts 32 through the wires, and the corners of the outer skin of the power line 5 are rounded.

[0019] Reference Figure 3The ground insertion 5 includes a cross-sectionally cross-shaped insertion rod 51, an upper portion of the insertion rod 51 is provided with a connecting portion 52 which is in interference fit with the blind hole 24 of the bottom plate, and a limiting rib 53 is further provided below the connecting portion 52. A plurality of grooves 521 extending along the axial direction of the connecting portion 52 and a matching rib 522 protruding from the surface of the connecting portion 52 are provided on the connecting portion 52. The grooves 521 can reduce the weight of the ground insertion 5 and improve the elasticity of the connecting portion 52, and the matching rib 522 can improve the matching precision of the connecting portion 52 with the blind hole and reduce the manufacturing difficulty. When the connecting portion 52 is inserted into the blind hole 24 of the lamp body bottom plate, the limiting rib 53 thereof abuts against the outside of the blind hole 24. An asymmetric anti-skid tooth 54 is provided in the middle portion of the insertion rod 51, a barb 55 is provided in the lower portion of the insertion rod 51, and a pointed end 56 is provided at the tail portion of the insertion rod 51. The anti-skid tooth 54 and the barb 55 can increase the friction force, prevent the ground insertion 5 from being lifted up by the growth of ground plants, and the asymmetric design of the anti-skid tooth 54 can reduce the excessive weakening of the strength of the insertion rod 51.

[0020] Reference Figures 2 to 5 The assembly of the lamp body is as follows: firstly, the LED light source 31 and the power line 4 are installed to the circuit board 3; then, the inner side of the cover 1 is upward, the LED light source 31 of the circuit board 3 is downward placed into the cover 1, the circuit board 2 is guided into the support rib 14 of the cover 1 through the guiding slope 181 on the positioning rib 18 of the cover 1, and a plurality of positioning ribs 14 abut against the four sides of the circuit board 3, so that the LED light source 31 is fixed to the center of the lens 13; then, the power line 4 is clamped into the wire groove 15, and the bottom plate 2 is assembled to the cover 1, the outer side of the support plate 22 of the bottom plate 2 abuts against the inner side of the side wall 12 of the cover 1, the tapered structure at the top end of the first welding rib 21 abuts against the bottom surface of the waterproof step 17 and the power line 4, the bottom end of the first welding rib 21 abuts against the side surface of the waterproof step 17, and the boss 27 is clamped into the wire groove 15 to press the power line 4; finally, the first welding rib 21 and the waterproof step 17 are welded and fixed by ultrasonic or other hot melting technology, and the second welding rib 261 is fused and fixed with the end surface of the side wall of the wire groove 15.

[0021] Reference Figure 5 The first welding rib 21 is provided on the bottom plate 2 and presses on the power line 4, so as to increase the local pressing force of the power line 4. The first waterproof rib 151 at the innermost side of the wire groove 15 is aligned with the first welding rib 21, and the remaining first waterproof ribs 151 are aligned with the second waterproof rib 21, so as to increase the pressing force of the power line 4 at multiple cross sections and improve the waterproof effect. Figure 7 The surface corner of the power line is transitioned by a round corner, the bottom wall and the side wall of the wire groove 15 are transitioned by a round corner matched therewith, and the two edges of the boss 27 are provided with arc protection edges, so as to make the outer skin of the power line 4 fully fit with the wire groove 15 and the boss 27. The second welding rib 261 is provided on the two sides of the boss 27 and is fused with the end surface of the side wall of the wire groove 15, so as to increase the connection strength of the wire groove 15 and the boss 27, and the waterproof durability of the power line is better.

[0022] Reference Figure 6 As a deformation of the present application, the waterproof step 17 can also be arranged on the bottom plate 2, and the first fusion rib 21 is arranged on the end surface of the mask side wall 12. As a further improvement of the present application, the circuit board 3 can also be clamped between the supporting table 23 of the bottom plate 2 and the supporting rib 14 of the mask, so that the supporting plate 22 can be omitted, the bottom plate structure is simpler, and the heat on the circuit board 3 can also be dissipated through the blind hole outside the supporting table 24, and the heat dissipation effect is better. Since the circuit board 3 is suspended on the supporting plate 22 or the supporting table 23 in the lamp shell, even if the lamp shell has a small amount of water, the circuit board 3 will not be soaked in water, and the waterproof effect is better. In addition, the suspended structure can also provide more heat dissipation space for the LED light source 31.

[0023] Reference Figures 3 to 5 The present application adopts a mask and a bottom plate to assemble, and a first fusion rib and a waterproof step are arranged on the assembling surface of the two, and the waterproof method has the advantages of good waterproof property, simple structure, easy assembly, high production efficiency, low production cost, good durability and the like. On the waterproof of the power line, a flat sheath wire and a wire slot in interference fit with the flat sheath wire are adopted, and the power line is fixed in the wire slot by the bottom plate. Since the surface of the power line sheath is flat, the wire slot structure is simple and has good sealing property.

[0024] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of deformations and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A decorative light string comprising a plurality of lamp bodies and a power cord connecting the plurality of lamp bodies, the lamp body comprising a faceplate, a backplate covering an opening of the faceplate, a circuit board mounted within the faceplate, an LED light source mounted on the circuit board, the power cord electrically connected to the circuit board and extending from both sides of the faceplate, characterized in that: The mask comprises a top wall and a side wall, the side wall is provided with a wire slot in which a power cord is tightly pressed, the side wall end face and the bottom plate joint surface are provided with a waterproof step and a first fusion rib which are clamped with each other, the first fusion rib is fused and fixed on the waterproof step, the power cord is a flat sheath wire, and the power cord extends from the wire slot.

2. The decorative light string of claim 1, wherein: The waterproof step is arranged on the side wall end face of the mask, and the first fusion rib is arranged on the bottom plate and pressed on the power cord.

3. The decorative light string of claim 2, wherein: The bottom plate is provided with a boss corresponding to the wire slot, the boss is clamped into the wire slot and pressed on the power cord.

4. The decorative light string of claim 3, wherein: The corners of the power cord on both sides are rounded, the corners of the wire slot bottom wall and side wall have corresponding rounded corners, and the two sides of the boss have corresponding arc guards.

5. The decorative light string of claim 4, wherein: The wire slot is sequentially provided with a plurality of first waterproof ribs extending from the bottom wall to the side wall from inside to outside, the innermost first waterproof rib is aligned with the first fusion rib, the boss is provided with a second waterproof rib aligned with the remaining first waterproof ribs, and the first waterproof rib and the second waterproof rib are pressed on the power cord.

6. The decorative light string of claim 5, wherein: The two sides of the boss are provided with a second fusion rib, and the second fusion rib is fused and fixed on the wire slot.

7. The decorative light string of claim 6, wherein: The top end of the first fusion rib and the second fusion rib is a tapered structure.

8. The decorative light string of claim 1, wherein: The bottom plate is vertically provided with a plurality of support plates, the mask is provided with a support rib on the inner side, the circuit board is clamped between the support plates and the support rib, the outer side of the support plate abuts against the inner side of the side wall of the mask, and the waterproof step and the first fusion rib between the side wall end face and the bottom plate are aligned.

9. The decorative light string of claim 1, wherein: The top wall is centrally provided with a lens integrated with the mask, the inner side of the side wall of the mask is provided with a plurality of positioning ribs, the end face of the positioning rib is provided with a guide slope, the positioning rib abuts against the side face of the circuit board, and the light source on the circuit board is located at the center of the lens.

10. The decorative light string of claim 1, wherein: The mask is provided with a support rib on the inner side, the bottom plate is centrally provided with a support table, the circuit board is clamped between the support table and the support rib, and the outer side of the bottom plate is provided with a blind hole recessed inward corresponding to the support table.

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