CN210837803U

CN210837803U - LED lamp bead with additional bottom line structure

Info

Publication number: CN210837803U
Application number: CN201922041912.4U
Authority: CN
Inventors: 钟胜萍
Original assignee: Shenzhen Xinke Photoelectric Technology Co ltd
Current assignee: Shenzhen Xinke Photoelectric Technology Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-06-23
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a LED lamp bead with an increased bottom line structure, which comprises an LED bracket, an LED lamp cup, an LED chip, a gold thread and a Q-shaped bottom line; the LED lamp cup is provided with a concave cavity, the inner wall of the cavity is a smooth light-gathering emission panel, the LED support comprises an anode pin and a cathode pin, and the anode pin and the cathode pin both extend into the cavity of the LED lamp cup and are positioned at the bottom of the cavity; one end of the gold wire is welded on the negative electrode pin, and the other end of the gold wire is welded on the LED chip; the Q-shaped bottom line is a lead, one end of the Q-shaped bottom line is in a flat fishtail shape and extends to the lower surface of the LED chip, the lower surface of the LED chip and one end of the Q-shaped bottom line are welded on the positive electrode pin, the other end of the Q-shaped bottom line is a bonding pad, and the bonding pad is welded on the positive electrode pin; the utility model has the advantages that: the LED chip is not easy to separate from the functional area of the support, and the condition of circuit breaking of the LED chip is avoided, so that the stability of the LED lamp bead is improved, and the service life of the LED lamp bead is prolonged.

Description

LED lamp bead with additional bottom line structure

Technical Field

The utility model relates to a LED technical field, more specifically the utility model relates to an increase LED lamp pearl of bottom line structure.

Background

The LED has the advantages of high lighting effect, long service life, energy conservation, environmental protection and the like, and is more and more widely applied to various fields such as indoor illumination, outdoor illumination, backlight sources and the like.

Among the prior art, inside the lamp pearl, the chip welding is in lamp cup bottom, uses the back for a long time at the lamp pearl, because external annular influence, the chip produces the separation with the functional area of support easily, in case this kind of condition takes place, the chip then can appear breaking circuit, causes the inefficacy of lamp pearl, and the life of lamp pearl is shorter.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an increase LED lamp pearl of bottom line structure, this LED lamp pearl is in the use, and the LED chip is difficult to be distinguished from the function of support, avoids the LED chip the condition that opens circuit to improve LED lamp pearl's stability and life.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an increase LED lamp pearl of bottom line structure, its improvement part lies in: the LED lamp comprises an LED bracket, an LED lamp cup, an LED chip, a gold wire and a Q-shaped bottom wire;

the LED lamp cup is provided with a concave cavity, the inner wall of the cavity is a smooth light-gathering emission panel, the LED support comprises an anode pin and a cathode pin, and the anode pin and the cathode pin both extend into the cavity of the LED lamp cup and are positioned at the bottom of the cavity;

one end of the gold wire is welded on the negative electrode pin, and the other end of the gold wire is welded on the LED chip; the Q-shaped bottom line is a lead, one end of the Q-shaped bottom line is in a flat fishtail shape, the end extends to the lower surface of the LED chip, the lower surface of the LED chip and one end of the Q-shaped bottom line are welded on the positive electrode pin, the other end of the Q-shaped bottom line is a bonding pad, and the bonding pad is welded on the positive electrode pin.

In the above structure, the thickness of the end of the Q-shaped bobbin thread in the shape of a fishtail gradually increases.

In the above structure, a boundary region is reserved between the positive electrode lead and the negative electrode lead, a distance between one side of the LED chip close to the boundary region and the boundary region is X1, and X1 is 150 ± 38 um.

In the structure, the distances between the LED chip and the inner walls of the two sides of the cavity are Y1 and Y2 respectively, and the | Y1-Y2| is less than or equal to 400 um.

In the above structure, the distance between the solder joint on the negative electrode pin and the border line region is a1, and a1 is 160 ± 60um, the distance between the solder joint on the LED chip and an inner wall of the cavity is B1, and B1 is 740 ± 60 um.

In the above structure, a corner of the LED lamp cup is provided with a notch.

In the above structure, the pad is circular.

The utility model has the advantages that: the utility model discloses an increase LED lamp pearl of bottom line structure, in the use, electric connection between anodal pin and the LED chip, realize the transmission of electric quantity, simultaneously through the connection of Q shape bottom line, also can realize the transmission of electric quantity, if the separation of LED chip and anodal pin appears, the Q shape bottom line can also guarantee the electric connection between LED chip and the anodal pin, LED lamp pearl is in the use, the LED chip is difficult to separate with the functional area of support, thereby the stability that LED lamp pearl used and the life of LED lamp pearl have been improved.

Drawings

Fig. 1 is the utility model discloses an increase top view of LED lamp pearl of bottom line structure.

Fig. 2 is the utility model discloses an increase the structural schematic diagram of LED chip, Q shape bottom line and gold thread of LED lamp pearl of bottom line structure.

Fig. 3 is the utility model discloses an increase the plan view of the Q-shaped bottom line of LED lamp pearl of bottom line structure.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.

Referring to fig. 1, fig. 2 and fig. 3, the utility model discloses an increase LED lamp pearl of bottom line structure, it is concrete, this LED lamp pearl includes LED support 10, LED lamp cup 20, LED chip 30, gold thread 40 and Q shape bottom line 50, LED lamp cup 20 be provided with sunken cavity, the inner wall of cavity is glossy spotlight emission panel, a corner of LED lamp cup 20 is provided with unfilled corner 201. The LED support 10 comprises an anode pin 101 and a cathode pin 102, and the anode pin 101 and the cathode pin 102 both extend into the cavity of the LED lamp cup 20 and are positioned at the bottom of the cavity; further, one end of the gold wire 40 is welded on the negative pin 102, and the other end of the gold wire 40 is welded on the LED chip 30; the Q-shaped bottom line 50 is a conductive line, as shown in fig. 3, one end 501 of the Q-shaped bottom line 50 is in a flat fishtail shape, and the end extends to the lower surface of the LED chip 30, in this embodiment, the thickness of the fishtail-shaped end 501 of the Q-shaped bottom line 50 gradually increases, and it can be understood that the thickness of the fishtail-shaped end 501 gradually increases from the center of the LED chip 30 to the edge of the LED chip 30; the lower surface of the LED chip 30 and one end of the Q-shaped bottom wire 50 are welded on the anode pin 101, the other end of the Q-shaped bottom wire 50 is a circular bonding pad 502, and the bonding pad is welded on the anode pin 101; according to the structure, on one hand, most of the area of the bottom of the LED chip 30 can be welded on the positive electrode pin 101, on the other hand, the LED chip 30 can be welded with the Q-shaped bottom line 50, one end of the Q-shaped bottom line 50 is in a fishtail-shaped structural design, the contact area of the LED chip 30 and the Q-shaped bottom line 50 is increased, therefore, the phenomenon that the local heat productivity is too large is avoided, and meanwhile, the welding stability of the LED chip 30 and the Q-shaped bottom line 50 is improved.

Through this kind of structure, the utility model discloses an increase LED lamp pearl of bottom line structure, in the use, electric connection between anodal pin 101 and the LED chip 30, realize the transmission of electric quantity, simultaneously through the connection of Q shape bottom line 50, also can realize the transmission of electric quantity, if the separation of LED chip 30 and anodal pin 101 appears, the Q shape bottom line can also guarantee the electric connection between LED chip 30 and the anodal pin 101, LED lamp pearl is in the use, LED chip 30 is difficult to separate with the functional area of support, thereby the stability that LED lamp pearl used and the life of LED lamp pearl have been improved.

In the above embodiment, the boundary area 103 is reserved between the positive pin 101 and the negative pin 102, the distance between the side of the LED chip 30 close to the boundary area and the boundary area is X1, and X1 is 150 ± 38 um; the distances between the LED chip 30 and the inner walls of the two sides of the cavity are Y1 and Y2 respectively, and | Y1-Y2| is less than or equal to 400 um; in addition, the distance between the solder joint on the negative electrode pin 102 and the border line region is a1, and a1 is 160 ± 60um, the distance between the solder joint on the LED chip 30 and an inner wall of the cavity is B1, and B1 is 740 ± 60 um.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides an increase LED lamp pearl of bottom line structure which characterized in that: the LED lamp comprises an LED bracket, an LED lamp cup, an LED chip, a gold wire and a Q-shaped bottom wire;

2. The LED lamp bead with the added bottom line structure as claimed in claim 1, characterized in that: the thickness of the end of the Q-shaped bottom line in the shape of a fishtail is gradually increased.

3. The LED lamp bead with the added bottom line structure as claimed in claim 1, characterized in that: a boundary area is reserved between the anode pin and the cathode pin, the distance between one side of the LED chip close to the boundary area and the boundary area is X1, and X1 is 150 +/-38 um.

4. The LED lamp bead with the added bottom line structure as claimed in claim 3, characterized in that: the distance between the LED chip and the inner walls of the two sides of the cavity is Y1 and Y2 respectively, and | Y1-Y2| is less than or equal to 400 um.

5. The LED lamp bead with the added bottom line structure as claimed in claim 3, characterized in that: the distance between the solder joint on the negative pole pin and the boundary line district is A1, and A1 is 160 ± 60um, the distance between the solder joint on the LED chip and an inner wall of cavity is B1, and B1 is 740 ± 60 um.

6. The LED lamp bead with the added bottom line structure as claimed in claim 1, characterized in that: a corner of the LED lamp cup is provided with a unfilled corner.

7. The LED lamp bead with the added bottom line structure as claimed in claim 1, characterized in that: the welding pad is circular.