CN201159402Y - Light emitting diode lamp - Google Patents

Abstract

The utility model relates to a light-emitting diode lamp, including radiator, headstock, light-emitting module, fixing base and lens, this headstock and fixing base set up respectively in the both sides that this radiator is relative, and this light-emitting module combines in this radiator and has a light-emitting diode unit, and this lens sets up in the top of this light-emitting diode unit and combines in this fixing base, wherein: the radiator comprises a base plate part and a plurality of radiating fins, wherein the base plate part is provided with a plurality of extension arms, a slot is arranged between two adjacent extension arms, the radiating fins are inserted into the corresponding slots, and one side wall surface of two opposite side wall surfaces of each extension arm is tightly abutted to one surface of two opposite surfaces forming the radiating fins; therefore, the utility model discloses need not to make the radiator with the welding mode, therefore can save manufacturing cost to can effectively give off the heat of emitting diode unit.

Description

LED lamps

technical field

The utility model relates to a light-emitting diode lamp, in particular to a light-emitting diode lamp which conforms to the MR-16 standard and can effectively dissipate the heat emitted by the light-emitting diode unit.

Background technique

With the advancement of lighting technology, the technology of applying light-emitting diode units to lighting has matured. Due to their small size, low power consumption and long life, they have been widely used in traffic signs, flashlights or lamps.

Known light-emitting diode lamps are generally provided with a heat sink in order to eliminate the heat generated by the light-emitting diode unit when it emits light. Usually, the heat sink is combined with a plurality of heat dissipation fins through solder and in a welding manner. These heat dissipation fins are used for heat conduction. Parts made of metal materials, especially aluminum metal parts, have been widely used in the industry due to their light weight and better heat dissipation efficiency.

However, when the above-mentioned heat dissipation fins made of aluminum are welded, a layer of chemical nickel must be electroplated on the aluminum heat dissipation fins before welding. The cost of the device rises, and the manufacturing process is complicated, and the man-hour required is also longer.

In addition, since the heat dissipation fins are welded by solder, and the heat transfer coefficient of the solder is different from that of the heat dissipation fins, when the heat source is transferred to the heat dissipation fins, the solder will cause heat conduction loss, and the heat source will be transferred to the heat dissipation fins for heat dissipation. worse.

Therefore, the present invention proposes a light-emitting diode lamp with a reasonable design and can effectively improve the above-mentioned problems.

Contents of the invention

In view of the above problems, the main purpose of the present invention is to provide an LED lamp that does not require welding, can save manufacturing costs, and can effectively dissipate the heat of the LED unit.

In order to achieve the above purpose, the utility model provides a light emitting diode lamp, comprising:

A heat sink, the heat sink includes: at least one substrate member, the substrate member includes a base and a plurality of extension arms extending from the base, each extension arm and the other two extension arms adjacent to the extension arm There are slots between them; and a plurality of heat dissipation fins, the heat dissipation fins are inserted into the corresponding slots of the substrate part, and the substrate part forms one of the two opposite side wall surfaces of each extension arm to be closely abutted against One of the two opposite surfaces of each cooling fin is formed in contact with each other, and the top and bottom ends of each cooling fin protrude from the top and bottom surfaces of the base plate, respectively, and the cooling fins and the The top surface of the base plate is surrounded to form an accommodating space;

a head seat, which fastens the bottom end of the heat dissipation fin;

A light emitting module, the light emitting module includes: a heat conduction plate, the heat conduction plate is arranged on the substrate of the heat sink; at least one light emitting diode unit, the light emitting diode unit is arranged on the heat conduction plate; a circuit board, the circuit the board is electrically connected to the light emitting diode unit; and two pins are electrically connected to the circuit board and pass through the head seat;

a fixed seat, which is accommodated in the accommodating space relative to the head seat, and the heat dissipation fins are fastened to the fixed seat; and

A lens is correspondingly arranged above the light emitting diode unit and combined in the fixing seat.

Preferably, each heat dissipation fin of the heat sink is combined with the base plate by riveting technique by pressing each extension arm of the base plate and making it closely abut against the surface of the corresponding heat dissipation fin .

Preferably, in the riveting technique, a plurality of blades respectively press the top surface and the bottom surface of the extension arm corresponding to the substrate member in a bidirectional pressing manner to plastically deform the extension arm, so that each extension arm The two side wall surfaces of the two closely abut against the corresponding surfaces of the heat dissipation fins.

Preferably, the bottom ends of the heat dissipation fins respectively extend to form an insertion portion, a plurality of slots are provided on the periphery of the header, and the insertion portions are inserted into the slots.

Preferably, the substrate part is pierced with two through holes, the heat conduction plate is electrically connected with two conductive pins, the circuit board is provided with two clamping parts, and the two conductive pins pass through the two conductive pins of the substrate part. The through holes are combined with the two clamping pieces.

Preferably, the head seat is a hollow shell, and the circuit board is accommodated inside the head seat.

Preferably, the fixing seat is a hollow shell, and two abutment arms protrude from the inner wall near the bottom end, and the two abutment arms abut against the top surface of the heat conducting plate.

Preferably, a buckle part protrudes from the peripheral surface of the fixing seat, and a notch is concavely formed on the side of the heat dissipation fin near the base of the substrate part, and the buckle part is snapped into the notch, so that the heat dissipation fin Fastened to the fixed seat.

Preferably, the light emitting diode lamp further includes a protective ring, the bottom of the protective ring is recessed with a plurality of grooves, and the top ends of the heat dissipation fins are respectively inserted and positioned in the corresponding grooves.

Preferably, a groove is recessed at the top end of the heat dissipation fin, and the groove is filled with glue, and the glue adheres the protective ring to the top end of the heat dissipation fin.

The utility model has the following beneficial effects: the utility model inserts the heat dissipation plate through the groove of the base plate, and uses riveting technology to directly fix the heat dissipation plate on the two side walls of the groove, so it is different from the known method of fixing heat dissipation fins by welding Compared with the fins, the utility model does not need to electroplate electroless nickel on the cooling fins first, and does not need to use solder. Therefore, it can not only reduce the manufacturing cost, but also shorten the working hours, and at the same time avoid the situation of heat conduction loss.

In order to further understand the features and technical content of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model. However, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present utility model.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the light-emitting diode lamp of the present invention.

Fig. 2 is a three-dimensional exploded view of another angle of the light-emitting diode lamp of the present invention.

Fig. 3 is a three-dimensional assembled view of the light-emitting diode lamp of the present invention.

Fig. 4 is a three-dimensional combination view of another angle of the light-emitting diode lamp of the present invention.

Fig. 5 is a cross-sectional view of the LED lamp of the present invention.

Fig. 6 is a three-dimensional exploded view of the radiator of the LED lamp of the present invention.

Fig. 7 is a schematic diagram of the implementation state of the LED lamp of the present invention when the blade intends to press the extension arm of the substrate to make it plastically deformed.

Wherein, the reference signs are explained as follows:

10 Radiator 11 Substrate 111 Base 1111 Top

1112 bottom surface 1113 side wall 1114 through hole 112 extension arm

1121 side wall surface 113 slot 12 cooling fins 121 top

122 Bottom part 123 Surface 124 Insertion part 125 Gap

126 Groove 13 Accommodating Space 20 Head Seat 21 Perforation

22 slots 30 Light-emitting modules 31 Heat conduction plates 32 Conductive pins

33 light-emitting diode unit 34 circuit board 35 pins

36 Clamping piece 40 Fixing seat 41 Abutment arm 42 Buckle part

50 lens 60 protective ring 61 groove 100 blade

Detailed ways

Referring to FIGS. 1 to 5 , the LED lamp of the present invention includes: a heat sink 10 , a header 20 , a light emitting module 30 , a fixing seat 40 , a lens 50 and a protection ring 60 .

Please refer to FIG. 6, the heat sink 10 includes a base plate 11 and a plurality of cooling fins 12, wherein the base plate 11 includes a base 111 and a plurality of extension arms 112, the base 111 can be a circular plate Body or a polygonal plate body, take the circular plate body as an example in the accompanying drawings of the utility model. The base 111 has a top surface 1111 , a bottom surface 1112 (as shown in FIG. 2 ), a sidewall 1113 and two through holes 1114 passing through the top surface 1111 and the bottom surface 1112 .

Each extension arm 112 extends from the sidewall 1113 of the base 111 at intervals, and a slot 113 is formed between each extension arm 112 and the other two adjacent extension arms 112 .

Each heat dissipation fin 12 can be a polygonal plate body or a circular plate body (not shown), and each heat dissipation fin 12 has a top end 121 and a bottom end 122 opposite, and has two opposite surfaces 123. The bottom ends 122 of these heat dissipation fins 12 extend obliquely downwards to form an insertion portion 124 (as shown in FIG. 5 ), and each heat dissipation fin 12 is close to the upper end on the side close to the base 111 of the substrate member 11. There is a notch 125 in the recess.

Each cooling fin 12 is inserted into the corresponding slot 113 of the base plate 11, and one side wall 1121 of the two side walls 1121 forming each extension arm 112 of the base plate 11 closely abuts against the formed One surface 123 of the two surfaces 123 of each heat dissipation fin 12 directly fixes each heat dissipation fin 12, and the top end 121 and the bottom end 122 of each heat dissipation fin 12 protrude from the substrate respectively. The top surface and the bottom surface of the component 11, so that these cooling fins 12 are arranged in a circular arrangement near the periphery of the substrate component 11, and these cooling fins 12 are also surrounded by the top surface of the substrate component 11 to form an accommodating space 13 (As shown in Figure 1).

In this embodiment, each heat dissipation fin 12 and the base plate 11 can be combined by riveting technology, so that each extension arm 112 of the base plate 11 can be pressed against the corresponding heat dissipation fin surface 123 of sheet 12 .

Please refer to FIG. 7 , the above-mentioned riveting technique uses a plurality of blades 100 to press the top surface and the bottom surface of the corresponding extension arm 112 of the substrate member 11 in a bidirectional manner, so that the extension arm 112 is plastically deformed. The two sidewall surfaces 1121 of each extension arm 112 are closely abutted against the surface 123 of the corresponding heat dissipation fin 12 .

The head seat 20 is a hollow shell, the bottom surface of the head seat 20 is provided with two perforations 21 (as shown in Figure 2), and the periphery of the head seat 20 is provided with a plurality of slots 22 (as shown in Figure 1 shown), the inserting portions 124 of the bottom ends 122 of these cooling fins 12 are inserted and set in these slots 22 (as shown in FIG. Section 122.

The light emitting module 30 includes a heat conduction plate 31 , at least one LED unit 33 , a circuit board 34 and two pins 35 , wherein the heat conduction plate 31 is attached on the top surface of the substrate 11 of the heat sink 10 . A heat conduction medium such as heat dissipation paste can be coated between the heat conduction plate 31 and the top surface of the substrate 11 to enhance the heat conduction between the two. The heat conducting plate 31 is electrically connected with two conductive pins 32 (as shown in FIG. 1 ), and the two conductive pins 32 correspond to the through holes 1114 of the substrate part 11 .

The light emitting diode unit 33 is arranged on the heat conducting plate 31, and utilizes the heat conducting plate 31 to conduct the heat generated by the light emitting diode unit 33 to the substrate member 11 and the heat dissipation fins 12, and passes air through the heat dissipation fins. The convection between 12 produces a cooling effect. Glue (such as epoxy resin) can be filled between the LED unit 33 and the heat conducting plate 31 to prevent short circuit of the LED unit 33 .

The circuit board 34 has an electronic circuit so as to convert the voltage. The circuit board 34 is provided with two clips 36 (as shown in FIG. 1 ), and the two conductive pins 32 of the heat conducting plate 31 pass through the base plate 11. Two through holes 1114 are combined with the two clips 36 (as shown in FIG. 5 ), so that the circuit board 34 can be electrically connected with the LED unit 33 on the heat conducting plate 31 .

In this embodiment, the circuit board 34 is accommodated inside the header 20, but it is not limited thereto. The circuit board 34 can also be disposed in the accommodation space 13 of the radiator 10, and other The way is electrically connected with the light emitting diode unit 33. In addition, glue can be further filled between the circuit board 34 and the header 20 to protect the circuit board 34 and improve its waterproof effect.

The two pins 35 are electrically connected to the circuit board 34 , and extend out of the header 20 through the two through holes 21 on the bottom of the header 20 . The circuit board 34 cooperates with the two pins 35 to comply with the MR-16 specification. The two pins 35 are used for connecting with an external power socket, and the external power is converted to voltage through the circuit board 34 to provide the required voltage for the LED unit 33 to emit light.

The fixing seat 40 is a hollow cylindrical shell, and two abutment arms 41 (as shown in FIG. 2 ) protrude from the inner wall near the bottom end, and the two abutment arms 41 abut against the heat conducting plate 31. The top surface is such that the heat conducting plate 31 is pressed down so as to be in close contact with the top surface of the substrate component 11 , thus having a good heat conduction effect.

The fixing seat 40 is accommodated in the accommodating space 13 relative to the head seat 20, and the peripheral surface of the fixing seat 40 is protruded with a plurality of buckle parts 42, and the width of the buckle parts 42 is from its top end to its bottom end. Tapering and forming slopes on both sides, the fastening portion 42 of the fixing seat 40 is engaged in the notch 125 of the heat dissipation fin 12 , so that the heat dissipation fin 12 is fastened to the fixing seat 40 .

When the above-mentioned fixing base 40 is installed into the accommodating space 13 of the heat sink 10, the top end 121 of the corresponding heat dissipation fin 12 can be elastically deformed firstly through the guidance of the two side slopes of the buckle part 42, and then After the buckle portion 42 is locked into the notch 125 of the heat dissipation fin 12 , it will automatically return to its original position.

In addition, colloid (such as epoxy resin) can also be filled between the fixing seat 40 and the heat dissipation fins 12 to enhance the bonding strength between the fixing seat 40 and the heat dissipation fins 12 , and at the same time have a waterproof function.

The lens 50 is made of a transparent material, and its outer diameter is tapered from its top end to its bottom end. The lens 50 is combined in the fixing seat 40 so as to be correspondingly disposed above the LED unit 33 . The lens 50 can make the light of the LED unit 33 emit more efficiently and irradiate to a larger area.

The protection ring 60 is a hollow annular body, and the bottom of the protection ring 60 is recessed with a plurality of grooves 61, and the tops 121 of the cooling fins 12 are respectively inserted and set in these grooves 61, so that the protection The ring 60 is sleeved above the cooling fins 12 .

Each cooling fin 12 can further be provided with a groove 126 (as shown in FIG. 5 ) in its top end 121, and glue can be filled in the groove 126, and the protective ring 60 can be adhered to these grooves by using the glue. The top ends 121 of the heat dissipation fins 12 are used to enhance the bonding strength between the protective ring 60 and the heat dissipation fins 12 , and at the same time, the heat dissipation fins 12 are protected from displacement. When installing or replacing the light-emitting diode lamp of the present utility model, the user can directly hold the protection ring 60, so that the installation or replacement can be performed more conveniently and labor-saving.

To sum up, the light-emitting diode lamp of the present invention uses the slot 113 between each extension arm 112 of the substrate 11 to provide the insertion of the heat dissipation fins 12, and tightly fix the heat dissipation through the two side walls 1121 of each extension arm 112. The fins 12 can be firmly fixed. Compared with the known method of fixing heat dissipation fins by welding, the utility model does not require electroless nickel plating, so the manufacturing cost can be reduced, the working hours can be shortened, and the manufacturing process can be simplified.

In addition, the utility model avoids the use of solder, so it can avoid the loss of heat conduction. At the same time, the use of solder is avoided, which has more environmental protection functions (usually solder contains lead; lead-free solder has the problem of increasing costs), and can effectively improve cooling efficiency.

However, the above descriptions are only preferred feasible embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Therefore, all equivalent structural changes made by using the description of the utility model and the contents of the accompanying drawings are all included in the same principle. Within the scope of the utility model.

Claims (10)

1. A light-emitting diode lamp, characterized in that it comprises: A radiator comprising: At least one substrate part, the substrate part includes a base and a plurality of extension arms extending from the base, each extension arm has a slot between the other two extension arms adjacent to the extension arm; and A plurality of heat dissipation fins, the heat dissipation fins are inserted into the corresponding slots of the base member, and one side wall surface of the two opposite side wall surfaces of each extension arm formed by the base member is closely abutted to form each One of the two opposite surfaces of a heat dissipation fin, and the top end and bottom end of each heat dissipation fin respectively protrude from the top surface and bottom surface of the substrate member, the heat dissipation fin and the The top surface of the substrate part is surrounded to form an accommodating space; a head seat, the head seat fastens the bottom end of the heat dissipation fin; A light emitting module, the light emitting module includes: a heat conduction plate, the heat conduction plate is arranged on the substrate part of the heat sink; at least one light emitting diode unit, the light emitting diode unit is arranged on the heat conducting plate; a circuit board electrically connected to the LED unit; and two pins, the pins are electrically connected to the circuit board and pass through the header; a fixing seat, the fixing seat is accommodated in the accommodating space relative to the head seat, and the heat dissipation fins are fastened to the fixing seat; and A lens, the lens is correspondingly arranged above the light emitting diode unit, and combined in the fixing seat. 2. The light-emitting diode lamp as claimed in claim 1, characterized in that, each heat dissipation fin of the heat sink and the base plate are pressed against each extension arm of the base plate by riveting technology to make them tightly contact connected to the surface of the corresponding heat dissipation fins. 3. The light-emitting diode lamp as claimed in claim 2, characterized in that the riveting technology is that a plurality of blades respectively press the top surface and the bottom surface of the extension arm corresponding to the substrate member in a bidirectional pressing manner so that the The extension arms are plastically deformed, so that the two sidewall surfaces of each extension arm are closely abutted against the corresponding surfaces of the heat dissipation fins. 4. The light-emitting diode lamp according to claim 1, wherein the bottom ends of the heat dissipation fins respectively extend to form an insertion portion, and the periphery of the head seat is provided with a plurality of slots, and the insertion portion The external plug is located in the slot. 5. The light-emitting diode lamp according to claim 1, wherein two through holes are pierced through the base plate, two conductive pins are electrically connected to the heat conducting plate, and two clamping parts are provided on the circuit board, The two conductive pins pass through the two through holes of the substrate part and are combined with the two clamping parts. 6. The light-emitting diode lamp as claimed in claim 1, wherein the head base is a hollow shell, and the circuit board is accommodated inside the head base. 7. The light-emitting diode lamp according to claim 1, wherein the fixing seat is a hollow shell, and two abutment arms protrude from the inner wall near the bottom end, and the two abutment arms abut against connected to the top surface of the heat conducting plate. 8. The light-emitting diode lamp as claimed in claim 1, characterized in that, the peripheral surface of the fixing base is provided with a buckle protrudingly, and the side of the heat dissipation fin close to the base of the substrate is concavely provided with a notch, and the buckle The buckle is snapped into the notch, so that the heat dissipation fins are fastened to the fixing seat. 9. The light-emitting diode lamp as claimed in claim 1, characterized in that, the light-emitting diode lamp further comprises a protective ring, the bottom of the protective ring is recessed with a plurality of grooves, and the top ends of the heat dissipation fins are respectively inserted into The setting is located in the corresponding groove. 10. The light-emitting diode lamp as claimed in claim 9, wherein a groove is recessed at the top of the cooling fin, and the groove is filled with colloid, and the colloid adheres the protective ring to the cooling fin on the top end.

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