CN213178257U

CN213178257U - Short circuit prevention positioning structure of LED lamp wick based on printed circuit

Info

Publication number: CN213178257U
Application number: CN202022077526.3U
Authority: CN
Inventors: 刘勇; 杨照; 景伟
Original assignee: Fu Yu Lin Photoelectric Technology Co ltd
Current assignee: Fu Yu Lin Photoelectric Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-11
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to a LED bulb technical field can fix a position each branch of LED wick, can prevent the printed circuit short circuit between branch simultaneously, still has simple structure, simple to operate, the lower technical characterstic of cost. Especially, short circuit location structure is prevented to LED wick based on printed circuit, including the ball cover that sets up at the top of LED wick, fix the bottom in the wick bottom, and the pull rod of connecting ball cover and bottom, the inner wall of ball cover passes through the sectorial locating area of a plurality of partition and isolation region of spacer partition, locating area and isolation region interval arrangement, the locating area is used for fixing a position the top of branch, the center at the ball cover is connected on the top of connecting rod, the lower extreme system of connecting rod has one section barb, the center system of bottom has the locating hole with connecting rod clearance fit, the lower extreme of connecting rod passes the locating hole after, the barb is hung at the border of locating hole, fix a position the ball cover at the top of LED wick.

Description

Short circuit prevention positioning structure of LED lamp wick based on printed circuit

Technical Field

The utility model belongs to the technical field of the LED bulb technique and specifically relates to a LED wick prevent short circuit location structure based on printed circuit.

Background

The conventional lamp wick of the LED bulb generally comprises a plurality of LED lamp filaments or flat plate type LED light-emitting units, the manufacturing process of the LED lamp filaments is complex, a plurality of LED chips need to be fixed on a slender support, the LED chips are connected in series through welding gold wires and then wrapped with fluorescent glue, and when the LED lamp wick is assembled, two ends of each LED lamp filament need to be welded with a guide wire or a support of the LED bulb, so that long time is consumed.

In view of the above, the applicant proposes an LED wick based on a printed circuit 4, as shown in fig. 1, the LED wick has a plurality of branches 2 extending from a base portion 1, two polar regions 1.1 connected to a guide wire 5 are printed on the base portion 1, LED chips 3 are uniformly arranged on the branches 2, the LED chips 3 on the branches 2 are conducted through the printed circuit 4, and two ends of the printed circuit 4 are connected to the two polar regions 1.1. The branch 2 and the branch 2 are in series or parallel connection or series and parallel connection mixed circuit structure. As shown in figure 2, each basic part 1 is bent into a ring, each branch 2 is bent into a radian, and the tops of the branches 2 are enclosed to form a columnar LED lamp wick.

Because the edge of each branch 2 is distributed with the printed circuit 4, the back of each branch 2 is the aluminium base board, and the top distance of each branch 2 is very close, in order to keep the interval of branch 2, prevent branch 2 top short circuit simultaneously, need design a location structure of preventing the short circuit for this LED wick.

Disclosure of Invention

The utility model aims at overcoming not enough among the above-mentioned background art, providing a prevent short circuit location structure of LED wick based on printed circuit, can fix a position each branch of LED wick, can prevent the printed circuit short circuit between branch simultaneously, still have simple structure, simple to operate, the lower technical characterstic of cost.

The technical purpose of the utility model is realized like this:

the utility model provides a prevent short circuit location structure of LED wick based on printed circuit, including the ball cover that sets up the top at the LED wick, fix the bottom in LED wick bottom, and the pull rod of connecting ball cover and bottom, the inner wall of ball cover separates fan-shaped locating area and the isolation region of a plurality of through the spacer, locating area and isolation region interval arrangement, the locating area is used for fixing a position the top of branch, the center at the ball cover is connected on the top of connecting rod, the lower extreme system of connecting rod has one section barb, the central system of bottom has the locating hole with connecting rod clearance fit, the lower extreme of connecting rod passes behind the locating hole, the barb hooks the border at the locating hole, fix a position the top at the LED wick with the ball cover.

Preferably, a circle of slot is formed in the cover edge of the bottom cover and used for inserting the bottom edge of the base part of the LED lamp wick, a division bar corresponding to the seam of the base part is arranged in the slot, and the division bar is arranged along the diameter direction of the bottom cover.

Preferably, the barb is formed by a circle of inverted conical protrusions on the outer wall of the connecting rod, the diameter of the lower end of each conical protrusion is the same as that of the connecting rod, and the diameter of the upper end of each conical protrusion is 1-2 mm larger than that of the connecting rod.

Preferably, the spacer extends downwardly from the inner wall of the ball cover to a position flush with the bottom edge, and extends toward the center of the ball cover to the outer wall of the connecting rod and is integrally connected to the connecting rod.

The utility model has the advantages that: the utility model discloses a bottom and connecting rod location ball cover, the parting bead of bottom make the seam of basic part keep the width, and the isolation zone of ball cover separates the branch upper end in with the locating area each other, avoids the short circuit, and overall structure is simple, simple structure, simple to operate, and is with low costs.

Drawings

Fig. 1 is a schematic diagram of an unfolded state of a printed circuit based LED wick.

Fig. 2 is a schematic front view structure diagram of an LED lamp wick based on a printed circuit.

Fig. 3 is a schematic sectional structure diagram of the present invention.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Fig. 5 is an enlarged bottom view of the ball cover.

Fig. 6 is a schematic top enlarged view of the bottom cover.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples, but the present invention is not limited to the following examples.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.

As shown in FIG. 1 and FIG. 3, the utility model provides a pair of prevent short circuit location structure of LED wick based on printed circuit, including setting up the ball cover 6 at the top of LED wick, fix the bottom 8 in LED wick bottom to and the pull rod of connecting ball cover 6 and bottom 8. The ball cover 6, the bottom cover 8 and the pull rod are made of plastic materials to realize insulation, and further, the ball cover 6, the bottom cover 8 and the pull rod can be coated with paint with the color similar to that of a printed circuit on the surface or made of plastic with the color similar to that of the printed circuit to improve the attractiveness. As shown in fig. 5, the inner wall of the ball cover 6 is divided into a plurality of fan-shaped positioning regions 6.2 and isolation regions 6.3 by spacers 6.1, the positioning regions 6.2 and the isolation regions 6.3 are arranged at intervals, and the positioning regions 6.2 are used for positioning the top ends of the branches 2. The top end of the connecting rod 7 is connected to the center of the ball cover 6 (vertically downwards along the axis of the ball cover 6), the lower end of the connecting rod 7 is provided with a section of barb, and the center of the bottom cover 8 is provided with a positioning hole 8.4 in clearance fit with the connecting rod 7. In order to reduce the installation process and increase the strength, the ball cover 6 and the spacer 6.1 are integrally formed, and the spacer 6.1 extends downwards from the inner wall of the ball cover 6 to a position which is flush with the bottom edge, and extends to the outer wall of the connecting rod 7 towards the center of the ball cover 6 and is connected with the connecting rod 7 into a whole. After the lower end of the connecting rod 7 penetrates through the positioning hole 8.4, the barb is hooked at the edge of the positioning hole 8.4, and the ball cover 6 is positioned at the top of the LED lamp wick.

As shown in fig. 6, a cover edge 8.1 of the bottom cover 8 is provided with a circle of slot 8.2 for inserting the bottom edge of the base portion 1 of the LED wick, a division bar 8.3 corresponding to the seam 1.2 of the base portion 1 is arranged in the slot 8.2, and the division bar 8.3 has a certain width (0.5 to 1 mm) and is arranged along the diameter direction of the bottom cover 8.

As shown in figure 4, the barb is formed by a circle of inverted conical protrusions 7.1 on the outer wall of the connecting rod 7, the diameter of the lower end of each conical protrusion 7.1 is the same as that of the connecting rod 7, and the diameter of the upper end of each conical protrusion is 1-2 mm larger than that of the connecting rod 7.

After the LED lamp wick based on the printed circuit is bent and molded, the top cover covers the top of the LED lamp wick, the top ends of the branches 2 enter the positioning area 6.2 and are separated by the isolation area 6.3, and the branches cannot contact with each other to realize insulation. The connecting rod 7 penetrates through the space in the middle of the LED lamp wick downwards, the bottom edge of the base part 1 is inserted into the slot 8.2 of the bottom cover 8, the parting bead 8.3 is inserted into the bent seam 1.2 of the base part 1, the lower end of the connecting rod 7 penetrates through the positioning hole 8.4 of the bottom cover 8 and then pulls the connecting rod 7 downwards, the conical protrusion 7.1 penetrates through the positioning hole 8.4 by utilizing the conical surface of the conical protrusion 7.1 and the deformation capacity of plastic, and because the diameter of the upper end of the conical protrusion 7.1 is larger than that of the connecting rod 7, the barb hooking effect can be realized, and the bottom cover LE 8 and the spherical cover 6 are positioned on the lamp wick.

The above description is only a preferred embodiment of the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a short circuit location structure of preventing of LED wick based on printed circuit which characterized in that: including ball cover (6) of setting at the top of LED wick, fix bottom (8) in LED wick bottom, and the pull rod of connecting ball cover (6) and bottom (8), the inner wall of ball cover (6) passes through spacer (6.1) and separates out sectorial locating area (6.2) of a plurality of and isolation region (6.3), locating area (6.2) and isolation region (6.3) interval arrangement, locating area (6.2) are used for fixing a position the top of branch (2), the center at ball cover (6) is connected on the top of connecting rod (7), the lower extreme system of connecting rod (7) has one section barb, the center system of bottom (8) has locating hole (8.4) with connecting rod (7) clearance fit, the lower extreme of connecting rod (7) passes behind locating hole (8.4), the barb hook is hung at the border of locating hole (8.4), fix a position ball cover (6) at the top of LED wick.

2. The LED lamp wick short-circuit-prevention positioning structure based on the printed circuit as claimed in claim 1, wherein: the LED lamp core is characterized in that a cover edge (8.1) of the bottom cover (8) is provided with a circle of inserting groove (8.2) for inserting the bottom edge of the base part (1) of the LED lamp core, a division bar (8.3) corresponding to a seam (1.2) of the base part (1) is arranged in the inserting groove (8.2), and the division bar (8.3) is arranged along the diameter direction of the bottom cover (8).

3. The LED lamp wick short-circuit-preventing positioning structure based on the printed circuit as claimed in claim 1 or 2, wherein: the barb is formed by a circle of inverted conical protrusions (7.1) on the outer wall of the connecting rod (7), the diameter of the lower end of each conical protrusion (7.1) is the same as that of the connecting rod (7), and the diameter of the upper end of each conical protrusion is 1-2 mm larger than that of the connecting rod (7).

4. The LED lamp wick short-circuit-preventing positioning structure based on the printed circuit as claimed in claim 1 or 2, wherein: the spacer (6.1) extends downwards from the inner wall of the ball cover (6) to a position which is flush with the bottom edge, and extends to the outer wall of the connecting rod (7) towards the center of the ball cover (6) and is connected with the connecting rod (7) into a whole.