CN210462915U

CN210462915U - COB packaging light source of heat dissipation type LED chip

Info

Publication number: CN210462915U
Application number: CN201921587288.1U
Authority: CN
Inventors: 王骞
Original assignee: Guangdong Guangyu Industry Co Ltd
Current assignee: Guangdong Guangyu Industry Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-05
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a COB encapsulation light source of heat dissipation formula LED chip, including the bottom plate, the COB light source of setting on the bottom plate, install the reflector on the bottom plate, set up the heat abstractor in the bottom plate both sides, the heat abstractor includes water cooling system, the fin, sets up the box on the bottom plate, the fan, the water cooling unit includes heterotypic copper pipe, sets up the first hose in heterotypic copper pipe one end, sets up the first straight tube in first hose one end, sets up the second hose in first straight tube one end, sets up the water pump in second hose one end, the third hose in water pump one end, the second straight tube in third hose one end, the fourth hose in second straight tube one end; can promote the cooling effect of COB light source through water cooling system and fin by a wide margin, abnormal shape copper pipe can also regard as the lamp shade to use and play the guard action to the COB light source, consequently the utility model has the advantages of multi-direction heat dissipation, and the radiating effect is good, simple structure, safe and reliable, simple to operate, the outward appearance is novel.

Description

COB packaging light source of heat dissipation type LED chip

Technical Field

The utility model particularly relates to a COB encapsulation light source of heat dissipation formula LED chip

Background

The COB light source is a high-light-efficiency integrated surface light source technology for directly attaching an LED chip to a mirror surface metal substrate with high light reflection rate, the technology eliminates a support concept, and has no electroless plating, reflow soldering and pasting procedures, so that the procedures are reduced by nearly one third, the cost is saved by one third, the COB light source can be simply understood as a high-power integrated surface light source, and the light emitting area and the overall dimension of the light source can be designed according to the product overall structure. Although there are many advantages of COB light source, it still is important to design the light loss of COB light source because it generates high temperature when using, for example, an active heat dissipation LED light source based on a heat pipe heat sink is disclosed in patent No. CN103836599A, and the heat pipe heat sink is disposed above the LED light source. Under the condition of not needing external energy, good heat dissipation effect is achieved.

However, the heat dissipation method disclosed in the above patent can only exchange the heat emitted from the light source in one direction, and the heat in other directions of the light source is not exchanged, so that the cooling effect of the design is not very good.

Disclosure of Invention

In view of this, the utility model aims at providing a COB encapsulation light source of heat dissipation formula LED chip that multi-direction heat dissipation, and the radiating effect is good, simple structure, safe and reliable, simple to operate, outward appearance are novel.

In order to solve the technical problem, the technical scheme of the utility model is that:

a COB packaging light source of a heat dissipation type LED chip comprises a bottom plate, a COB light source arranged on the bottom plate, a reflector arranged on the bottom plate and located around the COB light source, and heat dissipation devices arranged on two sides of the bottom plate, wherein each heat dissipation device comprises a water cooling system arranged on two sides of the bottom plate, a heat dissipation sheet arranged on one side of the bottom plate, a box body arranged on the bottom plate and located on the same side as the heat dissipation sheet, and a fan arranged in the box body and located at one end of the box body, each water cooling device comprises a special-shaped copper pipe wrapping the reflector, a first hose arranged at one end of the special-shaped copper pipe and communicated with the first hose, a first straight pipe arranged at one end of the first hose and communicated with the first straight pipe, a second hose arranged at one end of the first straight pipe and communicated with the first straight pipe, a water pump arranged at one end of the second hose and communicated with the second hose, a third hose arranged at one end of the third hose and communicated with, and the fourth hose is arranged at one end of the second straight pipe, and one end of the fourth hose is connected with the other end of the special-shaped copper pipe.

Preferably, the method comprises the following steps: the light source is arranged on the bottom plate, the heat exchange section is in contact with the light reflecting bowl, and the water inlet and the water outlet are arranged on the other side of the bottom plate.

Preferably, the method comprises the following steps: the water inlet and the water outlet are both bent into U shapes, and the water inlet and the water outlet are tightly attached to the bottom plate.

Preferably, the method comprises the following steps: the heat exchange section is provided with a plurality of spiral lamp shades, and the number of the spiral lamp shades is determined according to the number of the light sources.

Preferably, the method comprises the following steps: the radiating fins are arranged in a plurality of numbers, and the radiating fins are connected with the first straight pipe and the second straight pipe in an embedded mode.

Preferably, the method comprises the following steps: the box both ends are symmetrical structure, box terminal surface one side top is provided with, and the water pipe fixed orifices do not have and be provided with two on the terminal surface, and two water pipe fixed orifices symmetry sets up, be provided with the vent that is located water pipe mounting hole one side on the box.

Preferably, the method comprises the following steps: the bottom plate is provided with a special-shaped copper pipe fixing groove, the special-shaped copper pipe fixing groove is a semicircular groove, and the depth of the special-shaped copper pipe fixing groove is equal to the radius of the special-shaped copper pipe.

The utility model discloses technical effect mainly embodies in following aspect: can promote the cooling effect of COB light source through water cooling system and fin by a wide margin, abnormal shape copper pipe can also regard as the lamp shade to use and play the guard action to the COB light source, consequently the utility model has the advantages of the radiating effect is good, simple structure, safe and reliable, simple to operate, the outward appearance is novel.

Drawings

Fig. 1 is a structural diagram of a COB package light source of a heat dissipation LED chip according to the present invention;

FIG. 2 is a front top perspective view of a COB package light source of the heat dissipating LED chip of FIG. 1;

FIG. 3 is a top view of the COB package light source of the heat dissipating LED chip of FIG. 1;

FIG. 4 is a block diagram of the case of FIG. 1;

fig. 5 is a structural view of the base plate of fig. 4.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

Examples

A COB packaged light source of heat dissipation type LED chip is shown in figure 1, and comprises a bottom plate 1, a COB light source 2 arranged on the bottom plate 1, a reflecting bowl 3 arranged on the bottom plate 1 and positioned around the COB light source 2, heat dissipation devices 4 arranged on two sides of the bottom plate 1,

as shown in fig. 2 and 3, the heat dissipation device 4 includes a water cooling system 41 disposed on both sides of the bottom plate 1, a heat dissipation plate 42 disposed on one side of the bottom plate 1, a case 43 disposed on the bottom plate 1 and located on the same side as the heat dissipation plate 42, and a fan 44 disposed in the case 43 and located at one end of the case 43. The water cooling device 41 comprises a special-shaped copper pipe 411 wrapping the light reflecting bowl 3, a first hose 412 arranged at one end of the special-shaped copper pipe 411 and communicated with the special-shaped copper pipe, a first straight pipe 413 arranged at one end of the first hose 412 and communicated with the first hose, a second hose 414 arranged at one end of the first straight pipe 413 and communicated with the first hose, a water pump 415 arranged at one end of the second hose 414 and communicated with the second hose, a third hose 416 arranged at one end of the water pump 415 and communicated with the water pump, a second straight pipe 417 arranged at one end of the third hose 416 and communicated with the second hose, a fourth hose 417 arranged at one end of the second straight pipe 417, one end of the fourth hose 418 is connected with the other end of the special-shaped copper pipe 411, and the cold area device is a closed loop in which cooling water flows in a circulating mode. Heterotypic copper pipe 411 one end is provided with water inlet 4111, the heterotypic copper pipe 411 other end is provided with delivery port 4112, still be provided with heat transfer section 4113 in the middle of the water inlet 4111 of heterotypic pipe 411 and delivery port 4112, heat transfer section 4113 is located on bottom plate 1 and with the COB light source in same one side, heat transfer section 4113 and reflector 2 contact, water inlet 4111 and delivery port 4112 are located the opposite side of bottom plate 1, water inlet 4111 and delivery port 4112 all are bent into the U type, bottom plate 1 is hugged closely to water inlet 4111 and delivery port 4112, be provided with a plurality of heliciform lamp shades 411131 on the heat transfer section 4113, heliciform lamp shade 411131's quantity is confirmed according to COB light source quantity.

The number of the radiating fins 42 is plural, and the radiating fins 42 are connected with the first straight pipe 413 and the second straight pipe 417 in an embedded manner.

As shown in fig. 4, two ends of the box 44 are symmetrical, two water pipe fixing holes 441 are disposed above one side of the end surface of the box 44, two water pipe fixing holes 441 are disposed on each end surface of the water pipe fixing holes 441, and the two water pipe fixing holes 441 are symmetrically disposed. The case 44 is provided with a vent 442 at one side of the water pipe installation hole 441.

As shown in fig. 5, a special-shaped copper tube fixing groove 11 is formed in the bottom plate 1, and the special-shaped copper tube fixing groove 11 is a semicircular groove, and the depth of the groove is equal to the radius of the special-shaped copper tube 41.

The water pump 415 chooses the miniature circulating water pump of BSP27250S for use, the first hose 412, the second hose 414, the third hose 416, the material of fourth hose 418 are heat conduction insulating elastic rubber.

The working principle is as follows:

the COB light source 2 can generate high temperature during working, the light loss of the light source can be increased along with the rise of the temperature, the improved COB packaging light source of the heat dissipation type LED chip of the utility model can absorb the heat around the COB light source 2 in a radiation mode through the contact of the special-shaped copper pipe 411 and the reflector 3, take the heat away through the water in the internal circulating cold area, and finally release the heat to the surrounding environment, the special-shaped copper pipe 411 can realize the fixation of the special-shaped copper pipe 411 through the special-shaped copper pipe fixing groove 11, the water inlet 4111 and the water outlet 4112 which are arranged in a U shape and the water pipe fixing hole 441, and does not need screws and other fixing modes, so that the installation is simpler and faster, the heat dissipation fins 42 arranged at one side of the bottom plate are in contact with the bottom plate, and are closer to the light source, thereby the heat exchange is carried out with the COB light source in a heat convection mode, because the first, can take away the heat of part fin 42, the rethread sets up the fan in box 44 one side makes the air convection exchange fin 42, the heat of first straight tube 413 and second straight tube 417 is to the atmosphere in the surrounding, the cooling water is in passing through second hose 414 and three hoses 416 in ground, further release the heat to the surrounding environment in, this kind of water-cooling and air-cooling combine together not only can improve the cooling effect of fin, and can cool off the different regions of COB light source, greatly reduced the light loss of COB light source, the life is prolonged, heterotypic copper pipe 411 can also play the guard action to COB light source 2 in addition, can regard as the lamp shade to use, and the outward appearance that makes the light source has more the sense of design like this.

The utility model discloses technical effect mainly embodies in following aspect:

can promote the cooling effect of COB light source through water cooling system and fin by a wide margin, abnormal shape copper pipe can also regard as the lamp shade to use and play the guard action to the COB light source, consequently the utility model has the advantages of the radiating effect is good, simple structure, safe and reliable, simple to operate, the outward appearance is novel.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a COB encapsulation light source of heat dissipation formula LED chip, includes the bottom plate, sets up the COB light source on the bottom plate, installs on the bottom plate, is located COB light source enclose's reflector, sets up the heat abstractor in the bottom plate both sides, its characterized in that: the heat radiating device comprises water cooling systems arranged on two sides of a bottom plate, radiating fins arranged on one side of the bottom plate, a box body arranged on the bottom plate and located on the same side of the radiating fins, and a fan arranged in the box body and located at one end of the box body, wherein the water cooling devices comprise a special-shaped copper pipe wrapping a reflecting bowl, a first hose arranged at one end of the special-shaped copper pipe and communicated with the special-shaped copper pipe, a first straight pipe arranged at one end of the first hose and communicated with the first straight pipe, a second hose arranged at one end of the first straight pipe and communicated with the first straight pipe, a water pump arranged at one end of the second hose and communicated with the second hose, a third hose arranged at one end of the third hose and communicated with the third straight pipe, and a fourth hose arranged at one end of the second straight pipe, wherein one end of the fourth hose is connected with the other end of the special-shaped.

2. The COB package light source of the heat dissipation type LED chip as recited in claim 1, wherein: the light source is arranged on the bottom plate, the heat exchange section is in contact with the light reflecting bowl, and the water inlet and the water outlet are arranged on the other side of the bottom plate.

3. The COB package light source of the heat dissipation LED chip as recited in claim 2, wherein: the water inlet and the water outlet are both bent into U shapes, and the water inlet and the water outlet are tightly attached to the bottom plate.

4. The COB package light source of the heat dissipation LED chip as recited in claim 2, wherein: the heat exchange section is provided with a plurality of spiral lamp shades, and the number of the spiral lamp shades is determined according to the number of the light sources.

5. The COB package light source of the heat dissipation type LED chip as recited in claim 1, wherein: the radiating fins are arranged in a plurality of numbers, and the radiating fins are connected with the first straight pipe and the second straight pipe in an embedded mode.

6. The COB package light source of the heat dissipation type LED chip as recited in claim 1, wherein: the box both ends are symmetrical structure, box terminal surface one side top is provided with, and the water pipe fixed orifices do not have and be provided with two on the terminal surface, and two water pipe fixed orifices symmetry sets up, be provided with the vent that is located water pipe mounting hole one side on the box.

7. The COB package light source of the heat dissipation type LED chip as recited in claim 1, wherein: the bottom plate is provided with a special-shaped copper pipe fixing groove, the special-shaped copper pipe fixing groove is a semicircular groove, and the depth of the special-shaped copper pipe fixing groove is equal to the radius of the special-shaped copper pipe.