CN211295129U

CN211295129U - Two-leg LED lamp bead support

Info

Publication number: CN211295129U
Application number: CN201921666694.7U
Authority: CN
Inventors: 唐勇
Original assignee: YLin Electronics Co ltd
Current assignee: YLin Electronics Co ltd; Yonglin Electronics Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-08-18
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a two foot LED lamp pearl supports. The two-leg LED lamp bead support comprises a support body, wherein a bowl-shaped mounting groove is formed in the upper end face of the support body, and two oppositely-arranged side edges of the lower end face of the support body are respectively provided with a solder paste overflow groove. By adopting the design, the problem of short circuit in the welding process of the LED lamp beads is avoided, and meanwhile, the heat dissipation of the lamp beads is further accelerated, so that the service life of the lamp beads is prolonged.

Description

Two-leg LED lamp bead support

Technical Field

The utility model relates to a LED field especially relates to a two foot LED lamp pearl supports.

Background

The English language of the LED is (light emitting diode), and the LED lamp bead is the English abbreviation of the LED which is called LED for short, which is a popular name.

The working principle is as follows: the terminal voltage of the PN junction forms a certain potential barrier, when a forward bias voltage is applied, the potential barrier is lowered, and most carriers in the P region and the N region diffuse to each other. Since electron mobility is much greater than hole mobility, a large number of electrons will diffuse into the P region, constituting an injection of minority carriers into the P region. These electrons recombine with holes in the valence band and the energy obtained upon recombination is released as light energy. This is the principle of PN junction luminescence.

LED lamp pearl on the present market, its LED support heat-sinking capability is weak, and it is generally all to adopt non-benign heat conduction material to make, simultaneously, even there is corresponding heat conduction post, but its area of contact with the external world is little, and the heat dissipation is unsatisfactory.

Moreover, when the LED lamp beads are installed on the PCB, the LED lamp beads are small, so that the solder pastes at the two tin point positions are easy to contact in the glue overflowing process, and the problem of short circuit is caused.

Therefore, there is a need in the market for an anti-short LED light bar that can solve one or more of the above problems.

SUMMERY OF THE UTILITY MODEL

For solving one or more problems that exist among the prior art, the utility model provides a two-pin LED lamp pearl support.

The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be: the utility model provides a two foot LED lamp pearl supports, two foot LED lamp pearl supports include:

the tin paste support comprises a support body, wherein a bowl-shaped mounting groove is formed in the upper end face of the support body, and two oppositely-arranged side edges of the lower end face of the support body are respectively provided with a tin paste overflow groove.

In some embodiments, at least one limiting groove for avoiding short circuit of solder paste at the pin of the positive electrode/negative electrode is further disposed on the side wall of the solder paste overflow groove.

In some embodiments, the stent body comprises:

the solder paste overflow groove is arranged at two opposite side edges of the lower end surface of the high-heat-conductivity ceramic base, and the limiting groove is arranged at the side edge of the solder paste overflow groove; and

the reflection cup, the reflection cup sets up on the high heat conduction ceramic base, with high heat conduction ceramic base is connected, bowl form mounting groove sets up on the reflection cup up end.

In some embodiments, the ceramic base with high thermal conductivity is provided with a convection groove along the length or width direction of the ceramic base with high thermal conductivity.

In some embodiments, after the LED lamp bead is mounted on the PCB, a distance between a highest point of the solder paste overflow groove and the PCB is less than a height of the solder paste on the PCB after the solder paste overflow groove is brushed.

The utility model has the advantages that: the utility model discloses a support body, be equipped with a bowl form mounting groove on the support body up end, the relative both sides limit punishment that sets up of terminal surface do not is equipped with a tin cream overflow launder under the support body. By adopting the design, the problem of short circuit in the welding process of the LED lamp beads is avoided, and meanwhile, the heat dissipation of the lamp beads is further accelerated, so that the service life of the lamp beads is prolonged.

Drawings

Fig. 1 is a schematic structural view of an anti-short LED light bar according to a preferred embodiment of the present invention;

fig. 2 is a top view of an LED lamp bead in an anti-short LED lamp strip according to a preferred embodiment of the present invention;

fig. 3 is a left side view of an LED lamp bead in an anti-short LED lamp strip according to a preferred embodiment of the present invention;

fig. 4 is a front view of an LED lamp bead in an anti-short LED lamp strip according to a preferred embodiment of the present invention;

fig. 5 is a sectional view of the LED lamp bead in fig. 2 in a direction of a-a in a short-circuit prevention LED lamp strip according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1-5, the utility model discloses a prevent LED lamp strip of short circuit, a serial communication port, LED lamp strip includes:

a PCB board 10; and

the LED lamp beads 20 are arranged on the PCB 10, and the LED lamp beads 20 are electrically connected with the PCB 10;

LED lamp pearl 20 includes:

the solder paste mounting bracket comprises a bracket body 21, wherein a bowl-shaped mounting groove 211 is formed in the upper end surface of the bracket body 21, and two opposite side edges of the lower end surface of the bracket body 21 are respectively provided with a solder paste overflow groove 212;

the positive electrode/negative electrode pin 22, one end of the positive electrode/negative electrode pin 22 is arranged in the bowl-shaped mounting groove 211, and the other end is arranged on the side wall of the solder paste overflow groove 212;

the light-emitting chip 23 is arranged in the bowl-shaped mounting groove 211, and the input end and the output end of the light-emitting chip 23 are electrically connected with the anode pin and the cathode pin through wires respectively; and

and the fluorescent glue 24 is arranged in the bowl-shaped mounting groove 211, and encapsulates the light-emitting chip 23.

Specifically, in this embodiment, design tin cream overflow launder 212 on support body 21 lower extreme terminal surface, when placing LED lamp pearl 20 on the PCB board 10 of brushing the tin cream, LED lamp pearl 20 presses the tin cream, and at this in-process, the tin cream will overflow the cream to the periphery, because the design of tin cream overflow launder 212 for the tin cream most will spill over to this tin cream overflow launder 212, and this just can not cause the inside excessive cream of tin cream, causes the problem of short circuit.

This scheme has significantly reduced LED lamp pearl 20 at the in-process of installation, the problem of short circuit appears.

In some embodiments, at least one limiting groove 2121 is disposed on a sidewall of the solder paste overflow groove 212 for avoiding a short circuit of solder paste at the positive/negative lead 22.

Specifically, in this embodiment, a limiting groove 2121 is further formed in the sidewall of the solder paste overflow groove 212, so that even if solder paste overflows inward during the mounting process, most of the solder paste enters the limiting groove 2121 due to the effect of the limiting groove 2121, and the short circuit problem is further avoided.

In some embodiments, the stent body 21 includes:

the solder paste overflow groove 212 is arranged at two opposite side edges of the lower end surface of the high thermal conductivity ceramic base 213, and the limiting groove 2121 is arranged at the side edge of the solder paste overflow groove 212; and

and the reflecting cup 214 is arranged on the high heat conduction ceramic base 213 and connected with the high heat conduction ceramic base 213, and the bowl-shaped mounting groove 211 is arranged on the upper end surface of the reflecting cup 214.

Specifically, the bracket body 21 is designed to be the high thermal conductivity ceramic base 213 and the reflective cup 214, so that heat can be dissipated through the high thermal conductivity ceramic base 213, and meanwhile, the limiting groove 2121 can increase the contact area between the high thermal conductivity ceramic base 213 and the air, thereby accelerating heat dissipation.

The reflector cup 214 is generally made of PC material, and is molded on the high thermal conductivity ceramic base 213 and the anode/cathode pin 22 in an integrated molding mode, and the three are connected together, so that the structure is ingenious.

In some embodiments, the ceramic base 213 has a convection groove 215 along the length or width of the ceramic base 213.

Specifically, this scheme has still designed convection current groove 215, should be to the chute design in luminescent chip 23 below, can be comparatively quick take away the heat that luminescent chip 23 sent, has improved the life-span of whole lamp pearl greatly.

In some embodiments, after the LED lamp bead 20 is mounted on the PCB 10, the distance between the highest point of the solder paste overflow trough 212 and the PCB 10 is less than the height of the solder paste on the PCB 10 after being brushed.

Specifically, the distance between the highest point of the solder paste overflow groove 212 and the PCB 10 is set, so that the problem of insufficient solder is avoided, and the qualification rate of the light bar is improved.

To sum up, the utility model comprises a PCB board 10; the LED lamp beads 20 are arranged on the PCB 10, and are electrically connected with the PCB 10; LED lamp pearl 20 includes: the solder paste mounting bracket comprises a bracket body 21, wherein a bowl-shaped mounting groove 211 is formed in the upper end surface of the bracket body 21, and two opposite side edges of the lower end surface of the bracket body 21 are respectively provided with a solder paste overflow groove 212; the positive electrode/negative electrode pin 22, one end of the positive electrode/negative electrode pin 22 is arranged in the bowl-shaped mounting groove 211, and the other end is arranged on the side wall of the solder paste overflow groove 212; the light-emitting chip 23 is arranged in the bowl-shaped mounting groove 211, and the input end and the output end of the light-emitting chip 23 are electrically connected with the anode pin and the cathode pin through wires respectively; and the fluorescent glue 24, the said fluorescent glue 24 is set up in the said bowl-shaped mounting groove 211, encapsulate the light-emitting chip 23. By adopting the design, the problem of short circuit in the welding process of the LED lamp beads 20 is avoided, and meanwhile, the heat dissipation of the lamp beads is further accelerated, and the service life of the lamp beads is prolonged.

The above-mentioned embodiments only express two embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a two foot LED lamp pearl supports, its characterized in that, two foot LED lamp pearl supports include:

2. The two-pin LED lamp bead bracket according to claim 1, wherein at least one limiting groove for avoiding short circuit of solder paste at the pin of the positive/negative electrode is further provided on the side wall of the solder paste overflow groove.

3. The two-legged LED lamp bead bracket of claim 2, wherein the bracket body includes:

4. The two-legged LED lamp bead bracket of claim 3, wherein the high thermal conductivity ceramic base is provided with a convection groove along the length or width direction of the high thermal conductivity ceramic base.

5. The two-legged LED lamp bead bracket of claim 1, wherein after the LED lamp bead is mounted on a PCB, the distance between the highest point of the solder paste overflow groove and the PCB is less than the height of the solder paste brushed on the PCB.