CN214948306U - LED light-emitting component and lamp - Google Patents

Abstract

The application discloses an LED light-emitting component and a lamp, wherein the LED light-emitting component comprises LED lamp beads and a substrate, and a plurality of pairs of welding pads for welding and fixing the LED lamp beads are arranged on the substrate; every at least one pad in to the pad includes weld part and the naked temperature measurement portion that is covered by LED lamp pearl, and this scheme is for prior art, and LED light-emitting component has the temperature measurement portion that constitutes by the pad, and temperature measurement portion is the metal material and closes on LED lamp pearl, and the probe contact temperature measurement portion of thermoscope to the temperature rise of test LED lamp pearl that can be accurate, and do not influence the paster technology of LED lamp pearl.

Description

LED light-emitting component and lamp

Technical Field

The application relates to the field of lamps, in particular to an LED light-emitting component and a lamp.

Background

The LED illumination is light emitting diode illumination, and is a semiconductor solid light emitting device. The solid semiconductor chip is used as a luminescent material, and the carriers are compounded in the semiconductor to release excess energy to cause photon emission, so that red, yellow, blue and green light is directly emitted.

The lamp comprises a lamp tube, end covers fixed at two ends of the lamp tube, a driving power supply located in the lamp tube and an LED module located in the lamp tube and electrically connected with the driving power supply. The end cover is provided with two binding posts, each binding post is electrically connected with a driving power supply, and the binding posts are inserted into the lamp holder to be communicated with an external power supply.

In the prior art, the LED module comprises a substrate and LED lamp beads, and a welding pad for welding and fixing the LED lamp beads is arranged on the substrate. When detecting the temperature rise of LED lamp pearl, need near LED lamp pearl to set up the lead wire, be not convenient for detect operation on the one hand, on the other hand influences the paster technology.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the LED light-emitting component and the lamp can conveniently detect the temperature rise of the LED lamp beads.

The application provides a LED light emitting component, includes:

LED lamp beads;

the LED lamp comprises a substrate, wherein a plurality of pairs of welding pads for welding and fixing LED lamp beads are arranged on the substrate; at least one welding pad in at least one pair of welding pads includes the welding part and the naked temperature measurement portion that are covered by LED lamp pearl.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the substrate is in a long strip shape, the number of the LED lamp beads is multiple, and the LED lamp beads are sequentially arranged along the length direction of the substrate.

Optionally, each LED lamp bead is connected in series, and each LED lamp bead is connected in parallel with at least one resistor.

Optionally, the temperature measuring part and the LED lamp beads are sequentially arranged along the length direction of the substrate.

Optionally, for each pair of pads, the two pads are arranged in sequence along the length direction of the substrate.

Optionally, the length of the temperature measuring part outside the LED lamp bead is less than 3 mm.

Optionally, the width of the welding portion is D1, the width of the temperature measuring portion is D2, and D1: d2 is 1.5-3.

Optionally, the substrate includes a metal layer, an insulating layer, and a circuit layer, and each pad is electrically connected to the circuit layer.

Optionally, the surface of the substrate is coated with a solder resist ink layer.

The application also provides the following technical scheme:

a lamp comprises a lamp tube, end covers fixed at two ends of the lamp tube and a lamp strip arranged in the lamp tube, wherein the lamp strip adopts the LED light-emitting component as above.

The LED light-emitting component has the temperature measurement portion composed of the bonding pads, the temperature measurement portion is made of metal materials and close to the LED lamp beads, the probe of the temperature measurer is in contact with the temperature measurement portion, the temperature rise of the LED lamp beads can be accurately tested, and the surface mounting process of the LED lamp beads is not affected.

Drawings

Fig. 1 is a schematic structural diagram of a lamp according to an embodiment of the present disclosure;

FIG. 2 is a partial cross-sectional view of the lamp of FIG. 1;

FIG. 3 is a schematic structural diagram of the LED light-emitting assembly of FIG. 2;

FIG. 4 is a schematic structural diagram of the LED light-emitting assembly of FIG. 2;

fig. 5 is a schematic structural diagram of the substrate in fig. 3.

The reference numerals in the figures are illustrated as follows:

100. a light fixture; 10. an LED light emitting assembly; 11. LED lamp beads; 12. a substrate; 121. a metal layer; 122. An insulating layer; 123. a circuit layer; 13. a pad; 131. welding the part; 132. a temperature measuring part; 133. a resistance;

20. an end cap; 30. a lamp tube; 40. the power supply is driven.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, the present application provides an LED light emitting assembly 10, where the LED light emitting assembly 10 is applied to a lamp 100, the LED light emitting assembly 10 includes LED lamp beads 11 and a substrate 12, and the substrate 12 is provided with a plurality of pairs of pads 13 for welding and fixing the LED lamp beads 11. The LED lamp bead 11 is provided with two lamp pins, and each lamp pin is welded with the corresponding welding disc 13.

The substrate 12 is in a long strip shape, the substrate 12 has a length direction (e.g., an X direction in fig. 3) and a width direction (e.g., a Y direction in fig. 3), the length direction and the width direction of the substrate 12 are perpendicular to each other, the number of the LED lamp beads 11 is plural, the LED lamp beads 11 are arranged at intervals along the length direction of the lamp strip, and the distance between two adjacent LED lamp beads 11 is set according to actual needs, which is not described herein.

In this embodiment, as shown in fig. 4, at least one pad 13 of the at least one pair of pads 13 includes a welding portion 131 covered by the LED lamp bead 11 and an exposed temperature measuring portion 132, the lamp pin of the LED lamp bead 11 is welded to the corresponding welding portion 131, and the probe of the temperature detector contacts the temperature measuring portion 132, so as to accurately test the temperature rise of the LED lamp bead 11 without affecting the mounting process of the LED lamp bead 11.

The temperature measuring portion 132 and the welding portion 131 are integrally disposed to ensure that the temperature of the welding portion 131 is consistent with the temperature of the temperature measuring portion 132. In the embodiment, the material of the welding portion 131 is the same as that of the temperature measuring portion 132, and the welding portion 131 and the temperature measuring portion 132 are formed together, so that the difficulty of the processing process of the bonding pad 13 can be reduced. In some embodiments, the thickness of the thermometric section 132 is the same as the thickness of the pad 13.

In order to avoid the influence of the temperature measuring part 132 on the width of the substrate 12, referring to one embodiment, as shown in fig. 4, the temperature measuring part 132 and the LED lamp bead 11 are sequentially arranged along the length direction of the substrate 12, so that the structure of the LED light emitting assembly 10 is more compact. Wherein, along the width direction of the substrate 12, the width of the welding portion 131 is D1, the width of the temperature measuring portion 132 is D2, and D1: d2 is 1.5-3. Preferably, D1: d2 ═ 1.5.

In order to avoid the temperature measuring part 132 from affecting the installation of two adjacent LED lamp beads 11, referring to one embodiment, as shown in fig. 1, the length of the temperature measuring part 132 outside the LED lamp beads 11 is less than 3 mm. Preferably, the length of the temperature measuring part 132 outside the LED lamp bead 11 is less than 2 mm.

The arrangement of the pads 13 on the substrate 12, with reference to one of the embodiments, for each pair of pads 13, the two pads 13 are arranged in sequence along the length direction of the substrate 12. In the configuration of the substrate 12, referring to one embodiment, as shown in fig. 5, the substrate 12 includes a metal layer 121, an insulating layer 122, and a circuit layer 123, and each pad 13 is electrically connected to the circuit layer 123. The substrate 12 may be a metal substrate, preferably an aluminum substrate, or an FR-4 glass fiber board. In some embodiments, the surface of the substrate 12 is coated with a solder resist ink layer, and the solder resist ink layer is white on the side of the substrate 12 facing the LED lamp bead 11, so as to improve the light reflection efficiency. The solder resist ink layer is provided with a window at the pad 13 to allow the pad 13 to leak.

In order to avoid afterglow of the LED lamp beads 11 due to leakage, referring to an embodiment, as shown in fig. 4, the LED lamp beads 11 are connected in series, and each LED lamp bead 11 is connected in parallel with at least one resistor 133. Generally speaking, the resistance value of the resistor 133 is 200-. The number of the series resistors of each LED lamp bead 11 can be multiple, and one of the series resistors is the most ideal design.

As shown in fig. 1 to 2, the present application further provides a lamp 100, which includes a lamp tube 30, end caps 20 fixed at two ends of the lamp tube 30, and a light bar installed in the lamp tube 30, wherein the light bar employs the LED lighting assembly 10 in the above embodiments.

Lamp 100 also includes a drive power supply 40 mounted within tube 30 and electrically connected to LED light assembly 10. The lamp tube 30 has a length direction (e.g., Z direction in fig. 1), the lamp tube 30 is disposed in a hollow manner, and two ends along the length direction are disposed in an open manner, the LED light emitting assembly 10 and the driving power source 40 enter the lamp tube 30 from one end of the lamp tube 30, and are fixedly mounted in the lamp tube 30 by means of bonding or the like, and finally, the two ends of the lamp tube 30 are sealed by the end caps 20. In the present embodiment, the cross section of the lamp tube 30 is circular, and the end cap 20 is sleeved on the outer side of the end of the lamp tube 30; the lamp tube 30 is made of glass.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. An LED lighting assembly, comprising:

   LED lamp beads;

   the LED lamp comprises a substrate, wherein a plurality of pairs of welding pads for welding and fixing LED lamp beads are arranged on the substrate; at least one welding pad in at least one pair of welding pads includes the welding part and the naked temperature measurement portion that are covered by LED lamp pearl.
2. 2. The LED light assembly of claim 1, wherein the substrate is elongated, the number of the LED beads is plural, and the plurality of LED beads are arranged in sequence along the length direction of the substrate.
3. 3. The LED lighting assembly according to claim 2, wherein the LED beads are connected in series, and each LED bead is connected in parallel with at least one resistor.
4. 4. The LED light-emitting component of claim 2, wherein the temperature measuring part and the LED lamp beads are sequentially arranged along the length direction of the substrate.
5. 5. The LED lighting assembly of claim 2, wherein for each pair of pads, the pads are arranged sequentially along a length of the substrate.
6. 6. The LED light-emitting component of claim 1, wherein the length of the temperature measuring portion outside the LED lamp bead is less than 3 mm.
7. 7. The LED light emitting assembly as claimed in claim 1, wherein the width of the soldering portion is D1, the width of the temperature measuring portion is D2, and D1: d2 is 1.5-3.
8. 8. The LED lighting assembly of claim 1, wherein the substrate comprises a metal layer, an insulating layer and a circuit layer, and each of the pads is electrically connected to the circuit layer.
9. 9. The LED lighting assembly according to claim 1, wherein the surface of the substrate is coated with a solder resist ink layer.
10. 10. A lamp comprising a lamp tube, end caps fixed at two ends of the lamp tube, and a light bar installed in the lamp tube, wherein the light bar employs the LED light emitting assembly as claimed in any one of claims 1 to 9.

Images