CN219453695U - Fast-assembling type LED stem assembly - Google Patents

Abstract

The utility model discloses a fast-assembly type LED core column assembly, which comprises a circuit board, guide wires and lamp strips, wherein two through holes are formed in the circuit board, one ends of the two guide wires are respectively inserted from one side to the other side of the circuit board along the two through holes and are welded at the inserted positions, the other ends of the two guide wires are respectively bent to form bending parts, and the lamp strips are welded between the two bending parts. According to the utility model, on one hand, the welding points can be reduced from six points to four points, the welding difficulty is effectively reduced, so that the welding work can be conveniently finished by using machinery to replace workers, namely, the preparation pressure is reduced and the preparation efficiency is improved by using the structural improvement, on the other hand, the electronic elements such as resistors, bridge stacks and the like can be additionally arranged on the circuit board according to the required freedom, meanwhile, the good heat dissipation performance is always kept, and the overall adaptability is strong.

Description

Fast-assembling type LED stem assembly

[ field of technology ]

The utility model relates to the technical field of LED lamps, in particular to the technical field of fast-assembling type LED stem assemblies.

[ background Art ]

With the development of technology, the LED lamp gradually replaces the tungsten filament lamp due to the advantages of attractive appearance, energy saving, environmental protection, safety, long service life, high efficiency, no radiation, impact resistance and the like, and is increasingly widely used. Conventional LED lamps typically include a bulb, a lamp head, and a stem assembly with a PCB board, such as an LED bulb disclosed in the patent publication CN 207500855U. However, referring to fig. 1, in the preparation of such a stem assembly, two pins b and one ends of two guide wires d need to be welded on the circuit board a respectively, and then a light bar c is welded between the other ends of the two pins b, so that the welding points are more, the operation level is required to be more precise, and therefore, only manual work of workers is basically adopted, and the overall manufacturing efficiency is low.

Therefore, more and more manufacturers choose to remove the PCB board in the stem assembly, and simultaneously directly use the plastic sleeve to realize the positioning of the light bar, such as the LED bulb with the press-fit fixing wire disclosed in the utility model patent with the publication number of CN218455171U and the waterproof stem assembly disclosed in the utility model patent with the publication number of CN 217978401U. However, the design of the PCB-free board improves the manufacturing efficiency of the stem assembly, but leads to no arrangement of elements such as bridge stacks and the like, thereby not only leading to the problem that the AC type light bar and the DC type light bar cannot be simultaneously adapted, but also causing the problem of reduced heat dissipation. Therefore, how to improve the manufacturing efficiency of the stem assembly while ensuring that the stem assembly contains the PCB is needed to be solved.

[ utility model ]

The utility model aims to solve the problems in the prior art and provides a fast-assembled LED core column assembly, which not only can reduce welding points from six points to four points and effectively reduce welding difficulty so as to facilitate the completion of welding work by using machinery to replace workers, namely, the improvement of a structure is utilized to lighten preparation pressure and improve preparation efficiency, but also can add electronic elements such as resistors, bridge stacks and the like on a circuit board according to the required freedom, simultaneously always keeps good heat dissipation and has stronger overall suitability.

In order to achieve the above purpose, the utility model provides a fast-assembling LED stem assembly, which comprises a circuit board, guide wires and a lamp strip, wherein two through holes are formed in the circuit board, one ends of the two guide wires are respectively inserted from one side to the other side of the circuit board along the two through holes and are welded at the inserted positions, the other ends of the two guide wires are respectively bent to form bending parts, and the lamp strip is welded between the two bending parts.

Preferably, the through hole is a step hole, the guide wire comprises a first wire section and a second wire section, one ends of the first wire section and the second wire section are connected and coaxially arranged, the outer diameters of the first wire section and the second wire section are respectively matched with the inner diameters of a large hole section and a small hole section of the through hole, and the large hole section and the light bar are positioned on the same side of the circuit board.

Preferably, the inner wall of the big hole section and/or the small hole section is also provided with a plurality of plate body convex points, and the outer wall of the first wire section and/or the second wire section is provided with wire body concave points which can be clamped with the plate body convex points.

Preferably, the outer walls of the first wire section and/or the second wire section are respectively provided with a spiral groove extending into the through hole from the outside.

Preferably, resistors for rectifying are mounted inside the light bar and/or on the surface of the circuit board and/or on the guide wires.

Preferably, the resistor is on the same side of the circuit board as the aperture section when the resistor is mounted on the surface of the circuit board and/or over the guide wire.

The utility model has the beneficial effects that:

1) Through add two through-holes on the circuit board, can make the one end of two seal wires insert to the opposite side from one side of circuit board along two through-holes is direct respectively and form preliminary location, for traditional design, not only can reduce the welding point position to four point positions from six point positions on the one hand to effectively reduce the welding degree of difficulty, in order to utilize machinery to replace the workman to accomplish welding work, utilize the improvement of structure in order to alleviate preparation pressure and promote preparation efficiency promptly, on the other hand still can add electronic component such as resistance and bridge heap on the circuit board according to the freedom of needs, remain good thermal diffusivity all the time simultaneously, whole suitability is stronger.

2) Through designing the through hole as a step hole, and adopting the first wire section and the second wire section with the matched sizes to integrally form the guide wire, whether the guide wire is propped against each other or not during the process of passing through the through hole can be utilized to assist in judging whether the insertion is in place or not;

3) Through add a plurality of plate body bump in the inner wall department of macropore section and/or aperture section, add the silk concave point that can with each plate body bump looks joint in the outer wall department of first silk section and/or second silk section simultaneously, neither influence the normal grafting of seal wire, still usable each plate body bump and each silk concave point between the joint effect improve the grafting stability of seal wire.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

[ description of the drawings ]

Fig. 1 is a front view of a prior art stem assembly with a PCB board;

fig. 2 is a front view of the first embodiment;

fig. 3 is a top view of a circuit board according to the first embodiment;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a front view of a guidewire of the first embodiment;

FIG. 6 is an enlarged schematic view at B of FIG. 5;

fig. 7 is a front view of the second embodiment.

In the figure: 3-stem assembly, 31-circuit board, 311-through hole, 312-plate bump, 32-guide wire, 321-first wire section, 322-second wire section, 323-wire concave point, 324-spiral groove, 33-lamp strip, a-circuit board, b-pin, c-lamp strip, d-guide wire.

[ detailed description ] of the utility model

Referring to fig. 2 to 5, the fast-assembling LED stem assembly of the present utility model includes a circuit board 31, a guide wire 32 and a light bar 33, two through holes 311 are provided on the circuit board 31, one ends of the two guide wires 32 are respectively inserted from one side to the other side of the circuit board 31 along the two through holes 311 and are welded at the inserted positions, the other ends of the two guide wires 32 are respectively bent and form a bending portion, and the light bar 33 is welded between the two bending portions. Wherein the resistor for limiting current is directly arranged in the light bar 33. In addition, electronic components such as bridge stacks may be disposed on the circuit board 31 as desired. So design, can make the one end of two seal wires 32 insert to the opposite side along two through-holes 311 respectively and form preliminary location directly from one side of circuit board 31, for traditional design, not only can reduce the welding point position from six point positions to four point positions on the one hand to can effectively reduce the welding degree of difficulty, in order to utilize machinery to replace the workman to accomplish the welding work, utilize the improvement of structure in order to alleviate preparation pressure and promote preparation efficiency promptly, on the other hand still can add electronic component such as resistance and bridge stack on the circuit board according to the freedom of needs, remain good thermal diffusivity all the time simultaneously, whole suitability is stronger.

The through hole 311 is a stepped hole, the guide wire 32 includes a first wire section 321 and a second wire section 322, one ends of the first wire section 321 and the second wire section 322 are connected and coaxially arranged, outer diameters of the first wire section 321 and the second wire section 322 are respectively matched with inner diameters of a large hole section and a small hole section of the through hole 311, and the large hole section and the light bar 33 are located on the same side of the circuit board 31. So designed, it is possible to use whether the step surfaces are pressed against each other during the threading of the guide wire 32 through the through hole 311 to assist in determining whether the insertion is in place.

The inner wall of the big hole section and/or the small hole section is also provided with a plurality of plate body convex points 312, and the outer wall of the first wire section 321 and/or the second wire section 322 is provided with wire body concave points 323 which can be clamped with the plate body convex points 312. By the design, normal insertion of the guide wire 32 is not affected, and the insertion stability of the guide wire 32 can be improved by utilizing the clamping effect between each plate bump 312 and each wire concave point 323.

The outer walls of the first wire section 321 and/or the second wire section 322 are respectively provided with a spiral groove 324 extending from the outside into the through hole 311. After the insertion operation of the guide wire 32 is completed, the soldering operation between the circuit board 31 and the guide wire 32 may be performed from one side or both sides of the circuit board 31. Wherein the presence of the helical groove 324 facilitates the melting of the solder wire into the through hole 311 to enhance the solder integrity between the circuit board 31 and the wire 32.

In the second embodiment, referring to fig. 6, the resistor for limiting current is directly disposed on one of the wires 32 and is located on the same side of the circuit board 31 as the small hole section. Alternatively, the resistor may be mounted on the circuit board 31. In fact, since the stem assembly 3 is provided with the circuit board 31, the resistor can be built in the light bar 33 and can be mounted on the guide wire 32 or the circuit board 31, so that the light bar 33 can be a built-in resistor light bar or a common alternating current light bar or a direct current light bar, and the overall adaptability is high.

Other embodiments are the same as the first embodiment.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims (6)

1. The fast-assembling LED stem assembly, its characterized in that: including circuit board (31), seal wire (32) and lamp strip (33), be equipped with two through-holes (311) on circuit board (31), two one end of seal wire (32) inserts to opposite side and grafting department welding mutually along two through-holes (311) respectively from one side of circuit board (31), two the other end of seal wire (32) is bent respectively and is formed the kink, lamp strip (33) welding is between two kinks.

2. The ready-to-use LED stem assembly of claim 1, wherein: the through hole (311) is a step hole, the guide wire (32) comprises a first wire section (321) and a second wire section (322), one ends of the first wire section (321) and the second wire section (322) are connected and coaxially arranged, the outer diameters of the first wire section (321) and the second wire section (322) are respectively matched with the inner diameters of a large hole section and a small hole section of the through hole (311), and the large hole section and the lamp strip (33) are located on the same side of the circuit board (31).

3. The ready-to-use LED stem assembly of claim 2, wherein: the inner wall of the big hole section and/or the small hole section is also provided with a plurality of plate body convex points (312), and the outer wall of the first wire section (321) and/or the second wire section (322) is provided with wire body concave points (323) which can be clamped with the plate body convex points (312).

4. The ready-to-use LED stem assembly of claim 2, wherein: the outer walls of the first wire section (321) and/or the second wire section (322) are respectively provided with a spiral groove (324) which extends into the through hole (311) from the outside.

5. The ready-to-use LED stem assembly of any of claims 1 to 4, wherein: resistors for rectifying are arranged in the lamp strip (33) and/or on the surface of the circuit board (31) and/or on the guide wire (32).

6. The ready-to-use LED stem assembly of claim 5, wherein: when the resistor is mounted on the surface of the circuit board (31) and/or on the guide wire (32), the resistor and the small hole section are located on the same side of the circuit board (31).