CN209213801U - Housing for LED lamps - Google Patents

Abstract

The utility model discloses a shell for LED lamps and lanterns, it includes the lid and the cover body that all are the rectangle structure, the lid is transparent sunk structure, the lid is detachable joint on the cover body and the interval certain distance between the two, this interval forms the heat dissipation chamber, the cover body is sunken to form the installation cavity that supplies the installation of LED light source module, the cover body is still sunken to form the reflection cup, the bottom of reflection cup runs through the cover body and sets up the mounting hole that supplies the LED chip of LED light source module to get into in the reflection cup, the lateral wall of the cover body runs through from the installation cavity and sets up the louvre towards its edge is the slope, still be the even through on the cover body and set up the through-hole, the heat dissipation chamber is by the through-hole with the installation cavity intercommunication, the installation cavity is by the louvre with external intercommunication, thereby lead to the heat that LED chip; therefore, the utility model discloses can protect LED light source module, can carry out quick heat dissipation again, simple structure and practicality.

Description

Housing for LED lamps

technical field

The utility model relates to an accessory of a lamp, in particular to a housing of an LED lamp.

Background technique

The basic structure of the existing LED lamps is an electroluminescent semiconductor material chip, which is cured on the bracket with silver glue or white glue, and then the chip and the circuit board are connected with silver or gold wires, and then sealed with epoxy resin around. It plays the role of protecting the inner core wire, and finally installs the shell, so the shock resistance of the LED lamp is good. It is a solid-state semiconductor device that can convert electrical energy into visible light, and it can directly convert electricity into light. The heart of the LED lamp is a semiconductor LED chip. One end of the LED chip is attached to a bracket, one end is the negative pole, and the other end is connected to the positive pole of the power supply, so that the entire LED chip is encapsulated by epoxy resin.

The LED chip of semiconductor is made up of two parts, and a part is P-type semiconductor, and inside it occupies an leading position in hole, and the other end is N-type semiconductor, is mainly electron here. But time these two kinds of semiconductors couple together, between them, just form a P-N junction. When the current acts on the LED chip through the wire, the electrons will be pushed to the P area, and in the P area, the electrons will recombine with the holes, and then energy will be emitted in the form of photons, which is the principle of the LED chip to emit light. And the wavelength of light i.e. the color of light, be determined by the material forming P-N junction.

Initially, LEDs were used as indicating light sources for instruments and meters. Later, LEDs of various light colors were widely used in traffic lights and large-area display screens, resulting in good economic and social benefits. Take the 12-inch red traffic light as an example. In the United States, a long-life, low-light 140-watt incandescent lamp was originally used as the light source, which produces 2000 lumens of white light. After passing through the red filter, 90% of the light is lost, leaving only 200 lumens of red light. In the newly designed lamp, Lumileds uses 18 red LED light sources, including circuit loss, and consumes a total of 14 watts of power to produce the same light effect. Automobile signal lights are also an important field of application of LED light sources.

For general lighting, people need more white light sources. The GaN chip emits blue light (λp=465nm, Wd=30nm), and the YAG phosphor powder containing Ce3+ produced by high-temperature sintering is excited by the blue light and emits yellow light with a peak value of 550nm. The blue LED chip is installed in a bowl-shaped reflective cavity, covered with a thin layer of resin mixed with YAG, about 200-500nm. Part of the blue light emitted by the LED chip is absorbed by the phosphor, and the other part of the blue light is mixed with the yellow light emitted by the phosphor to obtain white light.

At present, when installing LEDs in existing LED lamps, the LED chips are first welded on the PCB, and then fixed on the aluminum substrate to form an LED light source module. Fix the shell to other components (such as the lamp body), and it is also necessary to apply heat dissipation resin (such as silica gel) between the aluminum substrate and the heat sink for heat dissipation, but the heat dissipation resin is often applied unevenly, resulting in a gap between the aluminum substrate and the heat sink. The adhesion between the LEDs is not good, which leads to poor heat dissipation of the LED and reduces the life of the LED. In addition, the heat dissipation structure of the LED is not a one-piece structure, which wastes materials in terms of cost, and also costs three to four more materials in terms of management. Therefore, the heat dissipation effect of LED lamps is crucial to its life.

The housing of the existing LED lamp basically only serves to protect the LED light source module, and its heat dissipation is mainly realized by adding heat sinks such as heat dissipation fins.

Therefore, there is an urgent need for a housing that can not only protect the LED light source module but also quickly dissipate heat.

Utility model content

The purpose of the utility model is to provide a housing for LED lamps that can protect the LED light source module and quickly dissipate heat.

In order to realize the purpose, the utility model provides a housing for LED lamps, which includes a cover body and a cover body in a rectangular structure, the cover body is in a transparent concave structure, and the side wall of the cover body is in the shape of It is detachably clamped on the front of the cover, and there is a certain distance between the cover clamped on the cover and the front of the cover, and the distance between the cover and the front of the cover is The distance between them forms a heat dissipation cavity, the back of the cover body is recessed to form an installation cavity for the LED light source module to be installed, and the front of the cover body is recessed toward the direction of the installation cavity to form a reflective cup with a tapered structure. The reflective cup Distributed in a matrix on the cover body, the bottom of the reflective cup penetrates the cover body to open installation holes for the LED chips of the LED light source module to enter the reflective cup, and the side wall of the cover body The inside of the installation cavity is obliquely opened with heat dissipation holes towards its edge, and the cover body is also uniformly penetrated with through holes, and the heat dissipation cavity communicates with the installation cavity through the through holes. The installation cavity communicates with the outside through the heat dissipation hole.

Preferably, in the housing for LED lamps of the present invention, a card slot is opened on the front of the cover body, and the cover body is detachably inserted into the card slot.

Preferably, a through hole is provided at the center of the four adjacent reflective cups in the LED lamp housing of the present invention.

Compared with the prior art, since the heat dissipation cavity of the utility model communicates with the installation cavity through the through hole, and the installation cavity communicates with the outside world through the heat dissipation hole, no matter the heat generated by the LED chip in the reflection cup or the heat generated in the installation cavity The heat generated by the LED light source module can finally be dissipated into the external environment through the heat dissipation holes, and through the convection between the heat dissipation holes and the installation cavity at different positions, as well as the through holes and heat dissipation cavity at different positions The convection between the LED chips and the LED light source module can quickly and effectively export the heat generated by the LED chip and the LED light source module to the external environment and dissipate it; at the same time, because the LED chip needs to face down for lighting when it is suspended, such as outdoor street lamps, etc. , so the heat dissipation holes will be in a state of use inclined downwards, ensuring good heat dissipation, and effectively preventing rainwater from entering the housing through the heat dissipation holes, the structure is simple and easy to use; in addition, through the cover and the cover The detachable design can be quickly and conveniently maintained and installed, and the LED light source module is installed in the installation cavity formed by the recess of the cover body, which effectively realizes the protection of the LED light source module; it can be seen that the utility model The housing for the LED lamp can not only protect the LED light source module, but also quickly dissipate heat, and has a simple and practical structure.

Description of drawings

Fig. 1 is a structural schematic diagram of a housing for an LED lamp of the present invention.

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1 .

FIG. 3 is a schematic structural diagram of another angle of FIG. 2 .

Fig. 4 is a schematic cross-sectional structural diagram along line A-A in Fig. 1 .

Fig. 5 is a schematic structural view of the cover body of the present invention.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

As shown in Figures 1 to 5, the LED lamp housing 100 of the present invention includes a cover body 2 and a cover body 3 both in a rectangular structure, the cover body 2 is a transparent concave structure 21, and the cover body 2 The side wall 22 is detachably clamped on the front of the cover body 3, and there is a certain distance between the cover body 2 clamped on the cover body 3 and the front surface of the cover body 3, and the distance between the cover body 2 and the front surface of the cover body 3 The distance between them forms a cooling cavity 23, the back of the cover body 3 is recessed to form an installation cavity 31 for the LED light source module (not shown in the figure) to be installed, and the front of the cover body 3 is recessed toward the installation cavity 31 to form a reflective cup with a conical structure 32. The reflective cups 32 are distributed on the cover body 3 in a matrix. The bottom of the reflective cups 32 penetrates the cover body 3 to provide mounting holes 33 for the LED chips of the LED light source module to enter the reflective cup 32. The side walls of the cover body 3 34 from the inside of the installation cavity 31 toward the edge 35 of the side wall 34 is obliquely opened with a heat dissipation hole 36, and the cover body 3 is also uniformly penetrated with a through hole 37, and the heat dissipation cavity 23 is connected with the through hole 37. The installation chamber 31 communicates, and the installation chamber 31 communicates with the outside world through the cooling holes 36; , so that the heat dissipation cavity 23 where the LED chip is located is communicated with the outside world under the communication effect of the through hole 36, the mounting cavity 31 and the heat dissipation hole 36, that is, the heat generated by the LED chip when it is working (that is, energized and illuminated) first accumulates in the heat dissipation cavity 23 , because the heat dissipation cavity 23 has a larger space area, it will effectively reduce the temperature of the LED chip, and the heat accumulated in the heat dissipation cavity 23 will be discharged into the installation cavity 31 under the action of the through hole 37, and enter the installation cavity 31 The heat is then discharged to the outside world through the cooling holes 36, so that the heat generated by the LED chip in the cooling cavity 23 and the heat generated by the LED light source module in the mounting cavity 31 are discharged to the outside and dissipated; The convection between the heat dissipation holes 36 and the installation cavity 31, and the convection between the through holes 37 opened at different positions and the heat dissipation cavity 23 can more quickly and effectively export the heat generated by the LED chip and the LED light source module to the outside world. lost in the environment. The housing 100 for LED lamps of the present invention will be further described in detail in conjunction with FIGS. 1-5 below:

As shown in Figure 2, preferably, the front of the cover body 3 in the LED lamp housing 100 of the present utility model is provided with a card slot 38, and the side wall 22 of the cover body 2 is detachably inserted into the card slot. 38; the detachable connection between the cover body 2 and the cover body 3 is realized through the insertion of the side wall 22 of the cover body 3 and the card slot 38, which is convenient for assembly and disassembly, and effectively avoids the use of screws and the like for fixing. cumbersome operations.

As shown in FIG. 2 , FIG. 3 and FIG. 5 , preferably, a through hole 37 is provided at the center of the four adjacent reflective cups 32 in the LED lamp housing 100 of the present invention.

1-5, since the cooling cavity 23 of the present invention communicates with the mounting cavity 31 through the through hole 37, and the mounting cavity 31 communicates with the outside world through the cooling hole 36, no matter the LED chip in the reflective cup 32 The heat generated, or the heat generated by the LED light source module in the installation cavity 31, can finally be dissipated to the external environment through the heat dissipation holes 36, and through the convection between the heat dissipation holes 36 opened at different positions and the installation cavity 31 , and the convection between the through holes 37 set at different positions and the cooling cavity 23, can quickly and effectively export the heat generated by the LED chip and the LED light source module to the external environment for dissipation; , the LED chip needs to be illuminated downwards, such as outdoor street lamps, etc., so the heat dissipation holes 36 will show an inclined downward use state (state shown in Figure 3), to ensure good heat dissipation, and effectively prevent the Rainwater enters the casing through the heat dissipation hole 36, and the structure is simple and easy to use; in addition, through the detachable design of the cover body 2 and the cover body 3, maintenance and installation can be performed quickly and conveniently, and the LED light source module is installed in the recess of the cover body 3 The formed installation cavity 31 effectively realizes the protection of the LED light source module; it can be seen that the housing for the LED lamp of the present invention can not only protect the LED light source module, but also quickly dissipate heat, and has a simple structure And practical.

In addition, the specific structure and light-emitting principle of the LED light source module and its LED chips involved in the present invention are well known to those skilled in the art, and will not be described in detail here.

What is disclosed above is only the preferred embodiment of the present utility model, and of course the scope of rights of the present utility model cannot be limited with this. Therefore, the equivalent changes made according to the patent scope of the utility model still belong to the scope covered by the utility model .

Claims (3)

1. a kind of LED lamp shell, which is characterized in that including lid and cover in rectangular configuration, the lid is in saturating Bright sunk structure, the side wall of the lid are connected on the cover in being removably connected on the front of the cover Lid and the cover front between spacing certain distance, the spacing between the lid and the front of the cover formed Heat dissipation cavity, the back side recess of the cover form the installation cavity installed for LED light source mould group, and the cover just faces the peace The reflector for the tapered structure of direction concave shape of behaveing affectedly, the reflector are distributed on the cover in matrix, the reflection Cup bottom through the cover offer for LED light source mould group LED chip enter the reflector in mounting hole, it is described The side wall of cover offers heat release hole towards inclined the running through in its edge from the installation cavity, also in uniform on the cover Through through-hole is offered, the heat dissipation cavity is connected to by the through-hole with the installation cavity, and the installation cavity is by the heat dissipation Hole is in communication with the outside.

2. LED lamp shell as described in claim 1, which is characterized in that the front of the cover offers card slot, described The side wall of lid is in removably to be inserted into the card slot.

3. LED lamp shell as described in claim 1, which is characterized in that at the center of four adjacent reflectors One through-hole is set.