CN101769447B - Thin LED light structure - Google Patents

Abstract

The invention discloses a thin LED lamp structure, comprising: the LED module comprises a base body, a cover body, a heat dissipation plate, an LED module, a circuit board and a light guide cover. The base body and the cover body are respectively provided with a base body opening and a cover body opening, a waterproof outer wall and a waterproof inner wall are formed between the base body and the cover body through a concave-convex butt joint design, the base body opening and the cover body opening are surrounded by a frame, the light guide cover, the circuit board and the LED module are arranged in the waterproof inner wall, and double waterproof effects are achieved through the waterproof inner wall and the waterproof outer wall; the structure for fixing the seat body and the cover body together is a concave and convex butt joint design of the column body and the hole body, and the waterproof effect is also achieved. The LED module uses high-brightness LEDs, heat of the high-brightness LEDs is dissipated by the heat dissipation plate, the heat dissipation plate is arranged on the outer side face of the seat body, and a plurality of convection cavities capable of achieving a heat convection effect are designed, so that heat dissipation efficiency is improved, and miniaturization is achieved. An upper waterproof wall and a lower waterproof wall with waterproof performance are formed between the light guide cover and the cover body and between the heat dissipation plate and the seat body through concave and convex butt joint designs respectively.

Description

Thin LED light structure

technical field

The invention relates to an LED lamp structure, in particular to a thin LED lamp structure that is waterproof, shockproof, dustproof, prevents the impact of instantaneous power supply changes, improves lighting range and lighting efficiency, improves heat dissipation performance, and is suitable for The cargo lights of various container trucks (such as refrigerated container trucks) are also suitable for various lighting such as night lighting, landscape lighting, and underwater lighting.

Background technique

In the past, the cargo lights used in various container trucks (such as refrigerated container trucks) used fluorescent lamps or incandescent lamps, resulting in power consumption, difficulty in lighting at low temperatures, resulting in significantly shorter lamp life, and irradiated light containing harmful substances to the cargo. Infrared rays or ultraviolet rays, and the large size is not conducive to placing or stacking goods (because the goods will bump into the goods lights), so some operators use LEDs as light sources.

However, the existing cargo lights that use LEDs as light sources still have the following deficiencies to be improved:

(1) When the container truck cleans the inside of the container, it is generally cleaned by spraying water. However, the waterproof design of the existing cargo lights cannot withstand the spraying water, which leads to water seepage in the cargo lights and malfunctions; take a refrigerated container truck as an example , when cleaning the inside of the cabinet, high-pressure steam or hot water above 80°C is used to clean and sterilize at the same time. However, the waterproof design of the existing cargo lights is not good. The structure will also be susceptible to water seepage and failure due to water seepage due to deformation.

(2) When the container truck is carrying cargo, it will inevitably vibrate continuously, but the anti-vibration function of the existing cargo lights cannot cope with such vibrations, resulting in the loss of the existing cargo lights that are gradually damaged due to the vibrations.

(3) Due to the use of low-illuminance marking LEDs, even if about 20 to 40 of these LEDs are used at the same time, their lighting range and lighting performance are still seriously insufficient, not to mention the use of so many LEDs. The volume is too large to meet the requirements of thinness and shortness.

(4) If high-brightness LEDs are used instead of high-brightness LEDs in order to improve the insufficient lighting efficiency of existing cargo lights that use LEDs as light sources, another problem will arise: the high heat of high-brightness LEDs must pass through a large volume The heat dissipation device of the present invention can dissipate heat, but it cannot meet the requirements of lightness, thinness and shortness. Therefore, the inventor of this case also needs to design a heat dissipation design that can improve heat dissipation performance and has a small volume.

(5) Since the light irradiation of the existing cargo lights is not uniform, the lighting efficiency is also reduced.

(6) The LEDs used in the existing cargo lights are all white LEDs, but taking a refrigerated container truck as an example, when the cabinet door is opened, due to the interaction between cold and heat, white mist is produced everywhere, and white LEDs The emitted white light will be unable to be seen clearly due to the influence of the white fog, which will affect the handling of goods.

(7) There must be multiple auxiliary electrical devices on the car, and the voltage fluctuations of these auxiliary electrical devices are too large when they are repeatedly turned ON/OFF. The surge voltage or current generated when the electrical device is turned ON/OFF will produce excessive voltage changes, which will cause the cargo lights used in the car to be damaged and malfunction due to the impact of these voltage changes.

(8) In order to rationalize the cost, the existing cargo lights are not designed to be able to respond to temperature changes, shockproof and impact resistant (shock resistant to instantaneous power supply changes).

Contents of the invention

One of the purposes of the present invention is to provide a thin LED lamp structure, by providing at least one waterproof wall (designed by concave and convex) ), which has better waterproof performance. In addition to being able to withstand jet water, it can also avoid the worrying water seepage problem caused by deformation due to contact with high-pressure steam or hot water. The thin LED lamp is also filled with filler The material has both waterproof, dustproof and shockproof functions; and by using high-brightness LEDs, the number of LEDs used is greatly reduced, and the volume of LED lights is reduced accordingly to meet the requirements of thinness and shortness. The heat dissipation plate with convection chambers can generate heat convection to improve the heat dissipation performance of the heat dissipation plate, so the heat dissipation plate can be thin and meet the requirements of thinness and shortness.

The second object of the present invention is to provide a thin LED lamp structure, by setting at least one protection circuit with a constant current circuit on the circuit board, and the constant current circuit controls the direct current to become non-polar direct current, thereby having the effect of the protection circuit And it has the effect of never inserting the wrong polarity when plugging in.

The third object of the present invention is to provide a thin LED lamp structure, by further adding a waterproof strip between the light guide cover and the cover, so as to further improve its waterproof performance.

The fourth object of the present invention is to provide a thin LED lamp structure. The light guide part of the light guide cover is a concave lens, so that the light of the LED element can be evenly diffused at 180 degrees, so that the light can be evenly irradiated and the illumination can be improved. Efficacy of range and lighting efficacy.

The fifth object of the present invention is to provide a thin LED lamp structure, by selecting yellow LEDs, using yellow light guide covers or combining a layer of yellow phosphor powder on the light guide cover, so that the goods can be raised in white mist. visibility (e.g. inside a freezer or refrigerated container).

To achieve the above purpose, the thin LED lamp structure of the present invention includes: a base body, a cover body, a heat dissipation plate, an LED module, a circuit board and a light guide cover.

The seat is provided with a seat opening, and a first rib and a plurality of holes are arranged on the inner side of the seat, the first rib surrounds the opening of the seat, and the holes are located between the first rib In addition, the outer surface of the seat is provided with a second rib surrounding the opening of the seat;

The cover is provided with a cover opening opposite to the opening of the seat, and a first groove corresponding to the first rib and a plurality of columns corresponding to the holes are also provided on the inner side of the cover. Butted against each other respectively, the cover and the base are butted with each other by utilizing the butt joints of the holes and the columns, and the inner surface of the cover is also provided with a ring surrounding the opening of the cover and the first groove. between the third groove;

The inner surface of the heat dissipation plate is provided with a second groove corresponding to the second convex rib to butt each other, and the outer surface is provided with a plurality of protrusions, and a groove is formed between each protrusion and the outer surface of the heat dissipation plate. Has a convection chamber;

The LED module includes a carrier board and at least one LED element arranged on the carrier board, the carrier board is arranged on the inner surface of the heat dissipation plate and is located in the opening of the seat body;

The circuit board is provided with a plurality of through-holes corresponding to the LED elements for each of the LED elements to pass through. The circuit board is arranged in the first rib of the seat body, between the LED module and the circuit board. are electrically connected to each other;

The light guide cover has a guide portion and a flange portion formed on the periphery of the guide portion, and the flange portion is provided with a third rib corresponding to the third groove of the cover to abut with each other.

In order to further understand the characteristics, characteristics and technical contents of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, but the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

Description of drawings

Fig. 1 is the three-dimensional exterior view of the present invention;

Fig. 2 is the three-dimensional exploded view of the present invention;

Fig. 3 is a three-dimensional exploded view of another viewing angle of the present invention;

Fig. 4 is a cross-sectional view of the present invention;

Fig. 5 is a longitudinal sectional view of the present invention;

Fig. 6 is a schematic plan view of the present invention, showing its first and second waterproof areas;

Fig. 7 is a schematic diagram of adding a waterproof strip according to the present invention.

[Description of main component symbols]

1. Seat body

10. Seat body opening 101, inner edge 102, positioning part

11. The first convex rib 12. The second convex rib 13. The fourth convex rib

14. The first hole body 15. The second hole body 16. The inner surface

17. Outer side

18. Wiring part 181. First wiring hole 182. Second wiring hole

183. The first frame

19. Gap

2. Cover body

20. Cover opening

21. The first groove 22. The third groove 23. The first cylinder

24. Second cylinder 25. Inner side 26. Outer side

27. The fourth groove 28. The second frame

3. Radiating plate 301, inner side 302, outer side

31. Convex part 311. Convection chamber

32. The second groove

4. LED module

41. Carrier board 42. LED components 43. Wire

5. Circuit board

51. Through hole 52. Wire

6. Light guide cover

61. Guide part 62. Flange part 621. Third convex rib

7. Waterproof strip

8. Fixed components

A. The first waterproof area B. The second waterproof area C. Mounting holes

Detailed ways

Please refer to Figures 1 to 5, the present invention provides a thin LED lamp structure, the thin LED lamp includes: a base body 1, a cover body 2, a cooling plate 3, an LED module 4, a circuit board 5 and A light guide cover 6 preferably further includes a waterproof strip 7 as shown in FIG. 7 . Wherein, the base body 1 and the cover body 2 are joined together, and the light guide cover 6 , the LED module 4 and the circuit board 5 are arranged between the base body 1 and the cover body 2 .

The seat body 1 has a seat body opening 10. In addition, the inner surface 16 of the seat body 1 is also provided with a first rib 11 and a plurality of first and second holes 14, 15. The first rib 11 surrounds the seat body. Outside the opening 10, these first and second hole bodies 14, 15 are located outside the frame of the first rib 11; as for the outer surface 17 of the seat body 1, a The second convex rib 12.

The cover 2 has a cover opening 20 opposite to the seat opening 10. In addition, the inner surface 25 of the cover 2 is also provided with a first groove 21 corresponding to the first rib 11, and a first groove 21 corresponding to these first ribs 11, respectively. 1. A plurality of first and second cylinders 23 and 24 corresponding to the second holes 14 and 15, the first convex rib 11 and the first groove 21 butt each other, each of the first and second holes 14, 15 and each of the first and second cylinders 23, 24 are also docked with each other, and the seat body 1 and the cover body 2 are docked with each other by utilizing the docking of these holes 14, 15 and these cylinders 23, 24, And each of the second hole body 15 and the second column body 24 are fixed by a fixing element (not shown) after the docking state of the base body 1 and the cover body 2, and each of the first hole body 14 After being docked with the first column 23, a fixing element (not shown) is used to fix the thin LED lamp at a predetermined position, wherein the first column 23 is formed on the outer surface 26 of the cover body 2 as shown in Fig. 1 The mounting hole C shown; as for the inner surface 25 of the cover body 2, a third groove 22 surrounding the opening 20 of the cover body and the first groove 21 is provided, and the shape of the third groove 22 can be According to the shape of the opening 20 of the cover body.

Preferably, the inner surface 16 of the seat body 1 is also provided with a fourth rib 13, and the fourth rib 13 surrounds the first rib 11 according to the outer contour of the seat body 1. These first and second holes The bodies 14 , 15 are located between the first and fourth ribs 11 , 13 ; oppositely, the inner surface 25 of the cover body 2 is provided with a fourth groove 27 corresponding to the fourth rib 13 to butt against each other.

The cooling plate 3 is fixed on the outer surface 17 of the seat body 1 through a plurality of fixing elements 8, and the inner surface 301 of the cooling plate 3 is provided with a second groove 32 corresponding to the second convex rib 12 to butt each other; as for heat dissipation The outer surface 302 of the plate 3 is provided with a plurality of protrusions 31, and a convection chamber 311 is formed between each of the protrusions 31 and the outer surface 302 of the heat sink 3, and each of the convection chambers 311 is used to generate heat convection, thereby strengthening The cooling efficiency of the cooling plate 3 .

The LED module 4 includes a carrier board 41 and at least one high brightness LED element 42 disposed on the carrier board 41 . The carrier plate 41 is arranged on the inner surface 301 of the heat dissipation plate 3. Preferably, the carrier plate 41 is flatly attached to the inner surface 301 of the heat dissipation plate 3 to transfer heat accordingly; To be fixed in the seat body opening 10, it is preferably achieved by a pair of positioning parts 102 provided at the inner edge 101 of the seat body opening 10, and the two ends of the strip-shaped carrier plate 41 are fixed on the pair Between the positioning parts 102 , in other words, the LED module 4 is located in the opening 10 of the seat body.

The circuit board 5 is provided with a plurality of through holes 51 corresponding to these LED elements 42 and related electronic circuits. The circuit board 5 is arranged in the first rib 11 of the seat body 1. 42 are exposed outside the circuit board 5 through the through holes 51 , the wires 43 of the LED module 4 are electrically connected to the circuit board 5 , and the circuit board 5 is connected to an external power source through the wires 52 . Preferably, the inner surface 16 of the base body 1 is provided with a wiring portion 18 , and the wires 52 of the circuit board 5 can extend out of the thin LED lamp through the wiring portion 18 .

The routing part 18 includes a first routing hole 181 passing through the first rib 11, a second routing hole 182 passing through the seat body 1, and a first frame bar 183 arranged on the inner side surface 301 of the seat body. The shape of the first frame bar 183 matches the first rib 11 and surrounds the second wiring hole 182, and the wiring part 18 is located between the first and fourth ribs 11, 13; The inner side 25 is provided with a second frame bar 28 corresponding to the first frame bar 183, the second frame bar 28 is surrounded by the first frame bar 183 and adjacent to each other, and the second frame bar 28 is located on the first frame bar 183. , Between the fourth groove 21,27.

The light guide cover 6 has a guide portion 61 for guiding light and a flange portion 62 formed on the periphery of the guide portion 61. The flange portion 62 is provided with a third groove 22 corresponding to the cover body 2. The corresponding third ribs 621 are butted against each other.

The combination method of the thin LED lamp: fix the cooling plate 3 on the outer surface 17 of the base body 1, make the second convex rib 12 and the second groove 32 butt together to form a lower waterproof wall; fix the LED module 4 on the base Between a pair of positioning parts 102 of the body opening 10, and at the same time let the carrier plate 41 be flat on the inner surface 301 of the heat dissipation plate 3, and a thermal paste is provided between the carrier plate 41 and the inner surface 301; the circuit board 5 is positioned on the Inside the first rib 11 of the base body 1, the LED element 42 is exposed outside the circuit board 5 through the through hole 51, and the wire 52 is extended outside the thin LED lamp through the wiring part 18; the light guide The cover 6 is combined in the cover opening 20 of the cover 2, so that the third rib 621 and the third groove 22 are butted together to form an upper waterproof wall; the cover 2 combined with the light guide cover 6 is covered on the On the seat body 1, the first and fourth ribs 11, 13 are respectively butted together with the first and fourth grooves 21, 27 to form waterproof inner and outer walls respectively, and the first and second frame strips 183 , 28 are closely connected to each other, and the first and second holes 14, 15 are respectively butted together with the first and second cylinders 23 and 24, and each of the second holes 15 and the second cylinder 24 are fixed by fixing elements not shown in the figure, so that the seat body 1 and the cover body 2 are fixed together.

Please refer to Fig. 6, the first waterproof area A is formed between the waterproof inner wall (the first rib 21 and the first groove 21) and the waterproof outer wall (the fourth rib 13 and the fourth groove 27). , and the second waterproof area B is formed inside the waterproof inner wall, and the LED module 4 and the circuit board 5 are both arranged in the second waterproof area B. In other words, the moisture from the outside must first penetrate into the first waterproof area A , it is possible to penetrate into the second waterproof area B again, and the difficulty is relatively increased, even if it is a jet of water, or even 80°C high-pressure steam or hot water that is likely to cause deformation of the seat body 1 and the cover body 2. Preferably, between the seat body 1 and the cover body 2 (including the first frame bar 183 of the wiring portion 18) can be further filled with a filling material (not shown) that can be silica gel or other similar materials. The filling material has the functions of waterproof, dustproof and shockproof.

Wherein, in order to prevent the instantaneous change of the power supply, the circuit board 5 is also provided with at least one protection circuit (not shown in the figure), and the protection circuit system includes at least a certain current circuit (not shown in the figure). The electricity becomes a non-polar direct current to protect the LED element 42 and other electronic circuits on the circuit board 5 . The LED module 4 is provided with one or more LED elements 42. In the case of one, the thin LED lamp is designed as a circle or a shape similar to a circle. In the case of more than one, it is as shown in the figure. The thin LED lamp is designed as a square, a rectangle or a shape similar to a square, such as a rectangle as shown in the figure, and these LED elements 42 are arranged in a straight line on the strip-shaped carrier board 41 . The guiding portion 61 of the light guide cover 6 is a concave lens, which evenly diffuses the light irradiated by the LED element 42 at 180 degrees to achieve the effect of uniform irradiation of the light. The LED element 42 is a high-brightness LED to improve the lighting performance; and in order to improve the visibility of the goods in the white mist of the freezer or the freezer container, in addition to the optional yellow LED, the yellow light guide cover 6 ( For example, a layer of yellow fluorescent powder is combined on the light guide cover 6). In addition, a circular waterproof groove (as shown in FIG. 3 ) and a waterproof convex rib (as shown in FIG. 2 ) can also be provided respectively at the outer end of the first cylinder 23 and the opposite position of the first hole 14 . ). Referring to FIG. 1 again, the base body 1 can further have a notch 19 corresponding to the protrusion 31 of the heat sink 3 to provide a convection chamber 311 to dissipate the convected hot air easily.

Please refer to another embodiment of the present invention shown in FIG. 7, the thin LED lamp further includes a waterproof strip 7, and the waterproof strip 7 is enclosed in the first groove 21 of the cover body 2 in an adhesive manner so as to In order to improve its waterproof performance, the attachment range of the waterproof strip 7, which can be a rubber strip or other similar, is on the inner surface 25 of the cover body 2 and the flange portion 62 of the light guide cover 6, and must avoid the opening of the cover body. 20.

In addition, the thin LED lamp of the present invention can be applied not only to cargo lamps of large and small container trucks or large and small refrigerated container trucks, but also to interior lamps of buses, engine room lighting lamps of ships, and factories. Safety lights and work lights, as well as explosion-proof lighting in production plants, etc., can even be used in night lighting, landscape lighting, underwater lighting and other lighting.

The structure of the thin LED lamp of the present invention is characterized in that at least one waterproof wall (composed of concave and convex designs) is provided between the junctions of the cover body, the seat body, the heat dissipation plate and the light guide cover, thereby having Excellent waterproof performance, in addition to being able to withstand jet water, it can also avoid the worrying water seepage problem caused by deformation due to exposure to high-pressure steam or hot water, and even make its temperature range reach -40 ° C ~ 80 ° C ℃, the thin LED lamp is also filled with filling materials to have both waterproof, dustproof and shockproof functions; and by using high-brightness LEDs, the number of LEDs used is greatly reduced, and the volume of the LED lamp is reduced accordingly to meet the thin and light requirements. Short and small requirements, the high heat of high-brightness LEDs is achieved by a heat sink with a convection chamber. The convection chamber can generate heat convection and improve the heat dissipation performance of the heat sink. Therefore, the heat sink can be thin and meet the light, thin and short requirements. By setting at least one protection circuit with a constant current circuit on the circuit board, and the constant current circuit controls the direct current to become a non-polar direct current, it has the function of protecting the circuit and has the function of never inserting the wrong polarity when plugging in. By further adding a waterproof strip between the light guide cover and the cover body, the waterproof performance thereof is further improved. The light guide part of the light guide cover is a concave lens, so that the light of the LED element can be evenly diffused at 180 degrees, so as to achieve the effects of uniform irradiation of light, improvement of lighting range and lighting efficiency. By choosing yellow LEDs, using yellow light guide covers or combining a layer of yellow phosphor on the light guide cover, the visibility of goods in the white fog of freezers or refrigerated containers can be improved. Through the special structural design of the thin LED lamp of the present invention, it has the effect of convenient construction. In addition, the thin LED lamp of the present invention can withstand the hot steam washout test defined in EN 60529 and DIN 40050-9, which can provide protection at a water pressure of 100bar (1450psi) and a temperature of 80°C; the pressure is applied directly on the sensor to 30-degree angle progression (0, 30, 60 and 90 degrees), for 30 seconds at each angle, for a total of 120 seconds (2 minutes), prevents water from entering.

The above is only a preferred feasible embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the description and drawings of the present invention are all included in the present invention. within the scope of its rights.

Claims (10)

1. thin-type LED lamp structure is characterized in that comprising:

One pedestal, be provided with a pedestal opening, the medial surface of this pedestal also is provided with one first fin and a plurality of hole body, and this first fin is outside this pedestal opening, these hole bodies are positioned at outside this first fin, and the lateral surface of this pedestal then is provided with second fin outside this pedestal opening;

One lid, be provided with a lid opening with respect to this pedestal opening, the medial surface of this lid also is provided with one with corresponding first groove of this first fin and a plurality ofly dock each other respectively with the corresponding cylinder of these hole bodies, utilize these hole bodies and docking of these cylinders and involutory each other between this lid and this pedestal, the medial surface of this lid also is provided with one around the 3rd groove between this lid opening and this first groove;

One heat sink, its medial surface are provided with one and dock each other with corresponding second groove of this second fin, and its lateral surface then is provided with a plurality of protuberances, respectively then is formed with a convection current chamber between the lateral surface of this protuberance and heat sink;

One led module comprises a support plate and at least one LED element of being located on this support plate, and this support plate is arranged on the medial surface of this heat sink and is positioned at this pedestal opening;

One circuit board is provided with the corresponding a plurality of through holes of at least one LED element respectively for this LED element respectively and passes, and this circuit board is arranged in first fin of this pedestal, is electrically connected to each other between this led module and this circuit board; And

One light-guiding shade has the flange part that a guidance part and is formed at this guidance part periphery, and this flange part is provided with one and docks each other with corresponding the 3rd fin of the 3rd groove of this lid.

2. thin-type LED lamp structure as claimed in claim 1, it is characterized in that, the medial surface of this pedestal further is provided with one the 4th fin, the 4th fin is outside this first fin, these hole bodies are between this first and the 4th fin, the medial surface of this lid then further is provided with one and docks each other with corresponding the 4th groove of the 4th fin, and this first fin and first groove are to being connected into a waterproof interior wall, the 4th fin and the 4th groove are then to being connected into a water proof exterior wall, in this waterproof, form one first heavily anti-aqua region between the exterior wall, the interior one second heavily anti-aqua region that then forms of this waterproof interior wall.

3. thin-type LED lamp structure as claimed in claim 1 is characterized in that, further is filled with a packing material between this lid and the pedestal, and this packing material is a silica gel.

4. thin-type LED lamp structure as claimed in claim 1, it is characterized in that, further comprise a waterproof bar, this waterproof bar comes frame to enclose within the zone that is surrounded by first groove of this lid medial surface with adhering mode, and the adhering range of this waterproof bar reaches in the medial surface of this lid and the flange part of this light-guiding shade.

5. thin-type LED lamp structure as claimed in claim 1, it is characterized in that, these hole bodies comprise a plurality of first hole bodies and a plurality of second hole body, these cylinders then comprise a plurality of first cylinders and a plurality of second cylinder, and respectively this second hole body further is provided with a retaining element with second cylinder and fixes the involutory state of this lid and pedestal after docking.

6. thin-type LED lamp structure as claimed in claim 1 is characterized in that, the guidance part of this light-guiding shade is concavees lens, and its light that sends is with the evenly diffusion of 180 degree.

7. thin-type LED lamp structure as claimed in claim 1 is characterized in that, the medial surface of this pedestal further is provided with a cabling portion, and the electric wire of this circuit board stretches out in outside this thin-type LED lamp via this cabling portion.

8. thin-type LED lamp structure as claimed in claim 7, it is characterized in that, this cabling portion comprises first cable hole that runs through this first fin, one second cable hole and that runs through this pedestal is arranged at first moulding on the medial surface of this pedestal, this first moulding frame encloses outside this second cable hole, the medial surface of this lid then be provided with one with corresponding second moulding of this first moulding, this second moulding frame encloses outside this first moulding, and this is first years old, be adjacent to each other between second moulding, and the medial surface of this pedestal further is provided with one the 4th fin, the 4th fin is outside this first fin, this cabling portion is positioned between this first fin and the 4th fin, the medial surface of this lid then further is provided with one and docks each other with corresponding the 4th groove of the 4th fin, and this second moulding is between this first groove and the 4th groove.

9. thin-type LED lamp structure as claimed in claim 1 is characterized in that this circuit board has at least one holding circuit, and this holding circuit includes at least one constant-current circuit, and this constant-current circuit control direct current becomes non-polar direct current.

10. thin-type LED lamp structure as claimed in claim 1 is characterized in that, the light emitting source in this LED element adopts gold-tinted.

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