High light efficiency corn lamp

Abstract

The utility model discloses a high light -efficient corn lamp, including lamp holder seat, lamp body, lamp shade and bottom cover, the lamp holder seat locates one end of lamp body, bottom cover locates the other end of lamp body, the lamp shade is located lamp body's outer surface, the lamp body includes heat dissipation main part and FCOB lamp strip, the heat dissipation main part is cylindrical, the front of heat dissipation main part is equipped with the mounting groove, the back of heat dissipation main part is equipped with a plurality of vertical fins, FCOB lamp strip can be detachably installed in mounting groove, bottom cover is circular, and bottom cover is installed in the bottom of heat dissipation main part, the back of heat dissipation main part and the bottom cover of circular form heat dissipation channel, and heat dissipation main part directly carries out heat dissipation to FCOB lamp strip, and the vertical fin of heat dissipation main part back increases the heat dissipation surface area, and heat dissipation channel is favorable to heat rapid discharge, can effectively give FCOB lamp strip heat dissipation, prevents the temperature of FCOB lamp strip from being too high and leads to luminous efficiency to drop.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a high-efficiency corn lamp. Background Technology

[0002] Corn lamps, as a commonly used light source, outperform traditional incandescent lamps and ordinary energy-saving lamps not only in terms of luminous efficacy, but also in terms of lighting effect, light comfort, biological effects of light, light safety, environmental performance, and resource consumption.

[0003] Existing corn lamps all use LED chips. LED chips generate a lot of heat when they work, and their luminous efficiency is closely related to the junction temperature (the temperature inside the LED chip). Corn lamps are usually long and thin cylindrical structures with compact internal space and limited heat dissipation paths, resulting in low luminous efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency corn lamp to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is as follows:

[0006] This utility model discloses a high-efficiency corn lamp, comprising a lamp holder, a lamp body, a lamp shade, and a bottom cover. The lamp holder is located at one end of the lamp body, the bottom cover is located at the other end of the lamp body, and the lamp shade is located on the outer surface of the lamp body. The lamp body includes a heat dissipation body and an FCOB LED strip. The FCOB LED strip uses flip-chip LEDs directly packaged on a substrate to form a high-density light source strip, resulting in more uniform current distribution, higher luminous efficiency, and less light decay. The heat dissipation body is cylindrical, with a mounting groove on its front and several vertical fins on its back. The FCOB LED strip is detachably installed in the mounting groove. The bottom cover is annular and installed at the bottom of the heat dissipation body. A heat dissipation channel is formed between the back of the heat dissipation body and the annular bottom cover. The heat dissipation body directly dissipates heat from the FCOB LED strip. The vertical fins on the back of the heat dissipation body increase the heat dissipation surface area, and the heat dissipation channel facilitates rapid heat dissipation, effectively dissipating heat from the FCOB LED strip and preventing the FCOB LED strip from overheating and reducing its luminous efficiency.

[0007] Furthermore, a ventilation layer is provided between the lamp holder and the lamp body. The ventilation layer has ventilation holes. Air enters through the ventilation holes, passes through the heat dissipation channel, and then flows out from the annular bottom cover. That is, the air entering from the top of the heat dissipation body carries away the heat generated by the FCOB lamp strip from top to bottom, further improving the heat dissipation effect. When the wind force at the bottom is large, the air entering the heat dissipation channel from the bottom cover can also carry the heat out through the ventilation holes.

[0008] Furthermore, in order to allow for the detachable, replaceable, and repairable FCOB light strip of the corn lamp, a limiting protrusion is provided in the mounting groove, and the FCOB light strip is located on the side of the limiting protrusion, that is, the FCOB light strip is held in place by the limiting protrusion.

[0009] Furthermore, the lamp body also includes a circular conductive plate, which is disposed on the top of the heat dissipation body and is electrically connected to the FCOB light strip. The circular conductive plate and the FCOB light strip are connected by a conductive wire, and the circular conductive plate is an aluminum substrate.

[0010] Furthermore, the lamp holder is equipped with a constant current drive circuit board, which is responsible for converting AC power (AC220V / 110V) into a stable DC constant current power supply (such as DC36V / 700mA). Then, the DC power output by the drive is transmitted to the FCOB lamp strip through a circular conductive plate. The circular conductive plate is equipped with a conductive female connector, and the constant current drive circuit board is equipped with a conductive male connector. The conductive male connector is detachably connected to the conductive female connector, that is, quick disassembly / installation between the lamp holder and the FCOB lamp strip is achieved through the conductive male connector and the conductive female connector.

[0011] Furthermore, the FCOB light strip includes a rectangular portion and a circular portion, which are integrally formed and connected by a connecting portion. The rectangular portion is located on the heat dissipation body, and the circular portion is located inside the bottom cover. The integrally formed structure is convenient for both installation and disassembly and replacement.

[0012] Furthermore, the heat dissipation body has a notch, and the connecting part passes through the notch, thus setting the installation position, so that the one-piece molded FCOB light strip can be installed and removed more quickly.

[0013] Furthermore, a quick-detachable structure for the lamp body and lamp holder can be designed. Specifically, the top of the heat dissipation body is provided with an upper cover, which is circular in shape and located above the circular conductive plate. That is, the lamp body is connected to the conductive male of the lamp holder by the upper cover and the bottom cover, and the conductive female is directly connected to the conductive male of the lamp holder.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: it changes the traditional fully enclosed corn lamp structure, on the one hand, it uses FCOB light strip as the light source, which has a more uniform current distribution, higher luminous efficiency, and less light decay; on the other hand, it designs a heat dissipation channel, and the back of the heat dissipation body has several vertical fins, which increases the heat dissipation surface area, and the heat dissipation channel is conducive to the rapid dissipation of heat, which can effectively dissipate heat for the FCOB light strip and prevent the FCOB light strip from overheating and causing a decrease in luminous efficiency. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of a high-efficiency corn lamp according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a high-efficiency corn lamp with the lampshade omitted, according to the present invention.

[0017] Figure 3 This is a schematic diagram of the heat dissipation body of a high-efficiency corn lamp according to the present invention. Figure 1 ;

[0018] Figure 4 This is a schematic diagram of the heat dissipation body of a high-efficiency corn lamp according to the present invention. Figure 2 ;

[0019] Figure 5 This is a schematic diagram of the structure of the annular conductive plate and constant current drive circuit board of a high-efficiency corn lamp according to the present invention.

[0020] Reference numerals: 1. Lamp holder, 2. Lamp body, 3. Lamp cover, 4. Bottom cover, 41. Top cover, 5. Heat dissipation body, 51. Mounting groove, 511. Limiting protrusion, 52. Vertical fin, 53. Notch, 6. FCOB LED strip, 61. Rectangular part, 62. Circular part, 63. Connecting part, 7. Heat dissipation channel, 8. Ventilation layer, 81. Ventilation hole, 9. Circular conductive plate, 91. Conductive female connector, 10. Constant current drive circuit board, 101. Conductive male connector. Detailed Implementation

[0021] Please refer to Figures 1-5 This utility model provides a high-efficiency corn lamp, including a lamp holder 1, a lamp body 2, a lamp shade 3, and a bottom cover 4. The lamp holder 1 is located at one end of the lamp body 2, the bottom cover 4 is located at the other end of the lamp body 2, and the lamp shade 3 is located on the outer surface of the lamp body 2. The lamp body 2 includes a heat dissipation body 5 and an FCOB LED strip 6. The FCOB LED strip 6 uses flip-chip LEDs directly packaged on a substrate to form a high-density light source strip, resulting in more uniform current distribution, higher luminous efficiency, and less light decay. The heat dissipation body 5 is cylindrical, and a mounting groove 51 is provided on the front side of the heat dissipation body 5. The back of the main body 5 is provided with several vertical fins 52. The FCOB light strip 6 is detachably installed in the mounting groove 51. The bottom cover 4 is circular and is installed at the bottom of the heat dissipation main body 5. A heat dissipation channel 7 is formed between the back of the heat dissipation main body 5 and the circular bottom cover 4. The heat dissipation main body 5 directly dissipates heat from the FCOB light strip 6. The vertical fins 52 on the back of the heat dissipation main body 5 increase the heat dissipation surface area, and the heat dissipation channel 7 facilitates the rapid dissipation of heat, which can effectively dissipate heat from the FCOB light strip 6 and prevent the FCOB light strip 6 from overheating and causing a decrease in luminous efficiency.

[0022] A ventilation layer 8 is provided between the lamp holder 1 and the lamp body 2. The ventilation layer 8 is provided with ventilation holes 81. Air enters through the ventilation holes 81, passes through the heat dissipation channel 7, and then flows out from the annular bottom cover 4. That is, the air entering from the top of the heat dissipation body 5 carries away the heat generated by the FCOB lamp strip 6 from top to bottom, further improving the heat dissipation effect. When the wind force at the bottom is large, the air entering the heat dissipation channel 7 from the bottom cover 4 can also carry the heat out through the ventilation holes 81.

[0023] In order to allow the FCOB light strip 6 of the corn lamp to be disassembled, replaced and repaired, a limiting protrusion 511 is provided in the mounting groove 51, and the FCOB light strip 6 is located on the side of the limiting protrusion 511, that is, the FCOB light strip 6 is locked by the limiting protrusion 511.

[0024] The lamp body 2 also includes a circular conductive plate 9, which is disposed on the top of the heat dissipation body 5 and is electrically connected to the FCOB light strip 6. The circular conductive plate 9 and the FCOB light strip 6 are connected by a conductive wire, and the circular conductive plate 9 is an aluminum substrate.

[0025] The lamp holder 1 is equipped with a constant current drive circuit board 10, which is responsible for converting AC power (AC220V / 110V) into a stable DC constant current power supply (such as DC36V / 700mA). Then, the DC power output by the drive is transmitted to the FCOB light strip through the circular conductive plate 9. The circular conductive plate 9 is equipped with a conductive female connector 91, and the constant current drive circuit board 10 is equipped with a conductive male connector 101. The conductive male connector 101 is detachably connected to the conductive female connector 91, that is, quick disassembly / installation between the lamp holder 1 and the FCOB light strip is achieved through the conductive male connector 101 and the conductive female connector 91.

[0026] The FCOB light strip 6 includes a rectangular portion 61 and a circular portion 62, which are integrally formed. A connecting portion 63 is provided between the rectangular portion 61 and the circular portion 62. The rectangular portion 61 is located on the heat dissipation body 5, and the circular portion 62 is located inside the bottom cover 4. The integrally formed structure is convenient for both installation and disassembly and replacement.

[0027] The heat dissipation body 5 is provided with a notch 53, and the connecting part 63 passes through the notch 53, that is, the installation position is set so that the one-piece FCOB light strip 6 can be installed and disassembled more quickly.

[0028] A quick-detachable structure can be designed for the lamp body 2 and the lamp holder 1. Specifically, the top of the heat dissipation body 5 is provided with an upper cover 41, which is circular. The upper cover 41 is located above the circular conductive plate 9. That is, the lamp body 2 is connected to the conductive male connector 101 of the lamp holder 1 by providing the upper cover 41 and the bottom cover 4, and is directly connected to the conductive male connector 101 of the lamp holder 1 through the conductive female connector 91.

[0029] It is worth noting that the connection between the heat dissipation body 5 and the lamp holder 1, the bottom cover 4, and the top cover 41 is a threaded connection, and a sealing ring is also provided at the connection position to enhance the sealing performance.

[0030] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-efficiency corn lamp, comprising a lamp holder (1), a lamp body (2), a lamp shade (3), and a bottom cover (4), wherein the lamp holder (1) is disposed at one end of the lamp body (2), the bottom cover (4) is disposed at the other end of the lamp body (2), and the lamp shade (3) is disposed on the outer surface of the lamp body (2), characterized in that, The lamp body (2) includes a heat dissipation body (5) and an FCOB light strip (6). The heat dissipation body (5) is cylindrical. The front of the heat dissipation body (5) is provided with a mounting groove (51). The back of the heat dissipation body (5) is provided with several vertical fins (52). The FCOB light strip (6) can be detachably installed in the mounting groove (51). The bottom cover (4) is annular and is installed at the bottom of the heat dissipation body (5). A heat dissipation channel (7) is formed between the back of the heat dissipation body (5) and the annular bottom cover (4).

2. The high-efficiency corn lamp according to claim 1, characterized in that, A ventilation layer (8) is provided between the lamp holder (1) and the lamp body (2). The ventilation layer (8) is provided with ventilation holes (81). Air enters from the ventilation holes (81), passes through the heat dissipation channel (7), and then flows out from the annular bottom cover (4).

3. The high-efficiency corn lamp according to claim 2, characterized in that, The mounting groove (51) is provided with a limiting protrusion (511), and the FCOB light strip (6) is located on the side of the limiting protrusion (511).

4. The high-efficiency corn lamp according to claim 1, characterized in that, The lamp body (2) also includes a circular conductive plate (9), which is located on the top of the heat dissipation body (5) and is electrically connected to the FCOB lamp strip (6).

5. The high-efficiency corn lamp according to claim 4, characterized in that, The lamp holder (1) is provided with a constant current driving circuit board (10), the circular conductive plate (9) is provided with a conductive female (91), the constant current driving circuit board (10) is provided with a conductive male (101), and the conductive male (101) is detachably connected to the conductive female (91).

6. The high-efficiency corn lamp according to claim 5, characterized in that, The FCOB light strip (6) includes a rectangular part (61) and a circular part (62). The rectangular part (61) and the circular part (62) are integrally formed. A connecting part (63) is provided between the rectangular part (61) and the circular part (62). The rectangular part (61) is located on the heat dissipation body (5), and the circular part (62) is located inside the bottom cover (4).

7. The high-efficiency corn lamp according to claim 6, characterized in that, The heat dissipation body (5) has a notch (53), and the connecting part (63) passes through the notch (53).

8. The high-efficiency corn lamp according to claim 7, characterized in that, The top of the heat dissipation body (5) is provided with a top cover (41), which is circular and located above the circular conductive plate (9).

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