CN211428194U - Pin structure of indicator lamp - Google Patents

Abstract

The utility model relates to an indicator lamp pin structure, the lamp holder comprises a lamp holder, lamp base and heat abstractor, lamp base top and lamp holder fixed connection, the lamp base middle part is equipped with lamp base convex part and kink, the lamp base convex part is located inside the lamp holder, the kink is located the lamp holder outside, the kink is "K" type, heat abstractor includes reflector layer and heat dissipation layer, reflector layer top and lamp holder bottom in close contact with, reflector layer bottom and heat dissipation layer top fixed connection, the heat dissipation layer is including the heat dissipation main part, first fixed block and second fixed block, heat dissipation main part both sides are equipped with the fixed slot of symmetry, first fixed block and second fixed block and fixed slot interference fit, the heat dissipation layer adopts compound heat dissipation material to make, compound heat dissipation material is including fixed connection's first heat conduction silicone grease layer in proper order, the copper layer, second heat conduction silicone grease layer and aluminum alloy. The utility model discloses the pin is "K" type, and steerable pilot lamp is high on the PCB board, and has heat abstractor on the pin, promotes the radiating effect.

Description

Pin structure of indicator lamp

Technical Field

The utility model relates to a LED lamp pearl technical field specifically is an indicator pin structure.

Background

The LED lamp bead is a solid semiconductor device capable of converting electric energy into visible light, and is widely applied to the production fields of lamp decoration illumination, LED large screen display, traffic lights, advertisements, urban light engineering and the like. However, the height of the existing direct-insert LED lamp on the PCB cannot be controlled, most of the direct-insert LED lamps can only be sleeved with the sleeve on the pin and then are inserted into the PCB, and therefore the height of the direct-insert LED lamp on the PCB is controlled. Therefore, the pin structure of the indicator lamp is designed to solve the problems to be solved in the prior art.

SUMMERY OF THE UTILITY MODEL

Weak point to prior art exists, the utility model provides an indicator pin structure, pin are "K" type to replace the sleeve to control the height of indicator on the PCB board, resources are saved has heat abstractor on the pin, and the inside high temperature of discharge indicator has promoted the radiating effect greatly fast effectively.

The utility model adopts the following technical scheme:

an indicator lamp pin structure comprises a lamp holder, a lamp pin and a heat dissipation device.

The lamp base comprises a lamp base top and a lamp base body, the lamp base bottom extends out of the lamp base, a lamp base convex part and a bending part are arranged in the middle of the lamp base, the lamp base convex part is located inside the lamp base, the bending part is located outside the lamp base and is of a K shape, the heat dissipation device comprises a reflecting layer and a heat dissipation layer, the top of the reflecting layer is in close contact with the bottom of the lamp base, the bottom of the reflecting layer is fixedly connected with the top of the heat dissipation layer, the heat dissipation layer comprises a heat dissipation main body, a first fixing block and a second fixing block, two sides of the heat dissipation main body are provided with symmetrical fixing grooves, the fixing grooves are provided with first arc surfaces, the first fixing block and the second fixing block are in interference fit with the fixing grooves, the first fixing block and the second fixing block are respectively provided with second arc surfaces, the first arc surfaces and the second arc surfaces are in close contact with the, A second heat-conducting silicone grease layer and an aluminum alloy layer.

In a further arrangement, the lamp cap comprises a shell and a light emitting chip, wherein the light emitting chip is provided with a positive electrode and a negative electrode and is positioned inside the shell.

So set up, after positive pole and the negative pole of luminous chip and the circuit switch-on the PCB board, luminous chip is as pilot lamp light emitting source.

Further, a protective layer is arranged on the outer surface of the shell and comprises a polyurethane layer.

So set up, polyurethane has good heat-proof quality, leakproofness, electrical insulation, ageing resistance and adhesion, and then the protective layer makes the lamp holder can be waterproof, high temperature resistant.

In a further arrangement, the lamp base comprises a first pin and a second pin, and tops of the first pin and the second pin are respectively electrically connected with the anode and the cathode.

So set up, luminous chip is connected with the circuit through inserting first pin and second pin on the PCB board, makes the pilot lamp luminous after the switch-on.

Further, the lamp base is of an integrally formed structure.

So set up, the lamp base adopts mould direct forming, need not the welding, practices thrift man-hour, has still strengthened the structural strength of lamp base.

Further, the reflecting layer is a PC reflecting sheet.

So set up, the PC reflector panel is heat-resisting, insulating, reflection effect is good, can go back the whole reflections of light that the light-emitting chip jetted to the lamp holder bottom surface, solves the problem of pilot lamp light leak, strengthens the luminous effect of pilot lamp.

Further setting, aforementioned first fixed block and second fixed block all are cheque shape, and the bottom all is equipped with dials the piece.

With the arrangement, the first fixing block and the second fixing block are in interference fit with the fixing grooves, so that the first fixing block and the second fixing block are tightly connected with the heat dissipation main body, and the heat dissipation device is fixed on the lamp pins; the first fixing block and the second fixing block can be conveniently pulled out of the fixing grooves through the poking block, so that the first fixing block and the second fixing block are separated from the heat dissipation main body, and the heat dissipation device can be separated from the lamp pins.

Further setting, aforementioned heat dissipation layer overall structure is the gear type, and the flank of tooth is equipped with a plurality of ripple recess.

So set up, gear structure and ripple recess all can increase aluminium alloy-layer heat radiating area to improve heat abstractor's heat-sinking capability.

Advantageous effects

Compared with the prior art, the utility model provides a pair of pilot lamp pin structure possesses following beneficial effect:

the utility model provides an indicator pin structure simple structure, the lamp base is "K" type to replace the sleeve to control the height of indicator on the PCB board, resources are saved, and the lamp base has lamp base convex part, makes the connection of lamp base and lamp holder more firm, prevents that the lamp base from coming off from the colloid, separates with the lamp holder, causes the indicator to damage; the heat dissipation device is adopted, so that heat generated by the indicator lamp is quickly and effectively discharged, and the heat dissipation effect is greatly improved; the heat dissipation device is provided with the reflecting layer, so that light rays emitted to the bottom surface of the lamp holder can be totally reflected, the problem of light leakage of the indicator lamp is solved, and the light emitting effect of the indicator lamp is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a schematic structural diagram of a heat dissipation layer;

fig. 4 is a schematic structural diagram of a composite heat dissipation material.

Reference numerals: 1. the lamp holder, 11, the shell, 12, the positive pole, 13, the negative pole, 2, the lamp base, 21, first pin, 22, second pin, 23, lamp base convex part, 24, the kink, 3, the heat abstractor, 31, the reflector layer, 32, the heat dissipation layer, 321, the heat dissipation main part, 3211, the fixed slot, 3212, the first arc surface, 322, the first fixed block, 323, the second fixed block, 324, the second arc surface, 325, the stirring block, 33, the first heat conduction silicone grease layer, 34, the copper layer, 35, the second heat conduction silicone grease layer, 36, the aluminum alloy layer.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a front view of the present invention, fig. 3 is a schematic structural diagram of a heat dissipation layer, and fig. 4 is a schematic structural diagram of a composite heat dissipation material. The utility model discloses a pin structure of an indicator lamp of a preferred embodiment, including lamp holder 1, lamp base 2 and heat abstractor 3.

The lamp cap 1 comprises a housing 11 and a light emitting chip. The light emitting chip is provided with an anode 12 and a cathode 13, and is positioned inside the shell 11, and after the anode 12 and the cathode 13 are communicated with a circuit on the PCB, the light emitting chip is used as a light emitting source of the indicator light. The outer surface coating of shell 11 has the protective layer, and the protective layer includes the polyurethane layer, and polyurethane has good heat-proof quality, leakproofness, electrical insulation, ageing resistance and adhesion, then the protective layer makes lamp holder 1 can be waterproof, high temperature resistant.

The top of the lamp base 2 is fixedly connected with the lamp holder 1 by pouring colloid, and the bottom of the lamp base 2 extends out of the lamp holder 1. The lamp base 2 comprises a first pin 21 and a second pin 22, the tops of the first pin 21 and the second pin 22 are respectively electrically connected with the anode 12 and the cathode 13 through conducting wires, the light-emitting chip is connected with a circuit by inserting the first pin 21 and the second pin 22 onto a PCB, and the indicator lamp emits light after the light-emitting chip is connected with the circuit. The lamp base 2 is of an integrally formed structure, is directly formed by a die without welding, saves working hours and also strengthens the structural strength of the lamp base 2. The middle part of the lamp base 2 is provided with a lamp base convex part 23 which is positioned inside the lamp base 1, when the colloid is filled for encapsulation, a groove matched with the lamp base convex part 23 is formed inside the lamp base 1, so that the connection between the lamp base 2 and the lamp base 1 is firmer, and the lamp base 2 is prevented from falling off from the colloid and being separated from the lamp base 1, thereby causing the damage of the indicator light. The 2 middle parts of lamp base also have kink 24, are located 1 outsides of lamp holder, and kink 24 is "K" type, and then when 2 bottoms of lamp base were pegged graft on the PCB board, through kink 24 with 2 middle part cards of lamp base on PCB board top surface, make 2 unable continuation insertions of lamp base, the effective control pilot lamp is at the height on the PCB board.

The heat sink 3 comprises a reflective layer 31 and a heat dissipation layer 32, the top of the reflective layer 31 is in close contact with the bottom of the lamp cap 1, and the bottom of the reflective layer 31 is bonded with the top of the heat dissipation layer 32. The reflecting layer 31 adopts a PC reflecting sheet, is heat-resistant, insulating and good in reflecting effect, can reflect all light rays emitted to the bottom surface of the lamp holder 1 by the light emitting chip, solves the problem of light leakage of the indicator lamp, and enhances the light emitting effect of the indicator lamp. The heat dissipation layer 32 includes a heat dissipation body 321, a first fixing block 322, and a second fixing block 323. Two sides of the heat dissipating body 321 are provided with symmetrical fixing grooves 3211, the bottom of the fixing grooves 3211 is provided with a first arc surface 3212, and the first arc surface 3212 is in close contact with the lamp pins 2. The first fixing block 322 and the second fixing block 323 are both wedge-shaped and are in interference fit with the fixing groove 3211, and the smaller ends of the first fixing block 322 and the second fixing block 323 have second arc surfaces 324, and the second arc surfaces 324 are in tight contact with the lamp pins 2, so that the first fixing block 322 and the second fixing block 323 are in interference fit with the fixing groove 3211, and are thereby tightly connected with the heat dissipation main body 321, so that the heat dissipation device 3 is fixed on the lamp pins 2. The first fixing block 322 and the second fixing block 323 are respectively provided with a toggle block 325 at the bottom, and the first fixing block 322 and the second fixing block 323 can be conveniently pulled out from the fixing groove 3211 through the toggle block 325, so as to be separated from the heat dissipation main body 321, and the heat dissipation device 3 can be separated from the lamp pins 2. Heat dissipation layer 32 adopts compound heat dissipation material to make, compound heat dissipation material is including the first heat conduction silicone grease layer 33 that bonds in proper order, copper layer 34, second heat conduction silicone grease layer 35 and aluminium alloy layer 36, first heat conduction silicone grease layer 33 is located the most inboard, with 2 in close contact with of lamp base, fill lamp base 2 and 34 clearances in copper layer, derive 2 heats of lamp base to copper layer 34 fast, still be used for preventing first pin 21 and second pin 22 short circuits, damage the pilot lamp, cause the incident even. The copper layer 34 absorbs heat quickly, has strong heat conduction capability, can quickly disperse a part of heat, and quickly guides a part of heat to the second heat conduction silicone grease layer 35. The second heat-conducting silicone grease layer 35 is located between the copper layer 34 and the aluminum alloy layer 36, and is mainly used for bonding the copper layer 34 and the aluminum alloy layer 36 and filling a gap between the copper layer 34 and the aluminum alloy, so that heat conducted by the copper layer 34 can be quickly diffused to the aluminum alloy layer 36. The aluminum alloy layer 36 is located on the outermost side, is low in manufacturing cost and fast in heat dissipation, and can quickly disperse heat. The heat dissipation layer 32 is gear-shaped, and the tooth surface is provided with a plurality of corrugated grooves, so that the heat dissipation area of the aluminum alloy layer 36 is increased, and the heat dissipation capability of the heat dissipation device 3 is improved.

The utility model discloses during the installation, lamp base 2 forms lamp base convex part 23 and kink 24 through one shot forming earlier, encapsulate lamp base 2 lamp base convex part 23 lamp base 1 inside again, kink 24 stretches out lamp base 1 outside, then with lamp base 2 and first arc 3212 in close contact with, pass fixed slot 3211, make reflector layer 31 top and lamp base 1 bottom in close contact with, push fixed slot 3211 respectively with first fixed block 322 and second fixed block 323 again, make second arc 324 and lamp base 2 in close contact with, thereby fixed connection heat abstractor 3 and lamp base 2. After the installation, insert pilot lamp base 2 PCB board, until kink 24 bottom and PCB board top contact, again with pilot lamp base 2 and PCB board welding. The utility model provides an indicator lamp pin simple structure, lamp base 2 are "K" type to replace the sleeve to control the height of indicator lamp on the PCB board, resources are saved just adopts heat abstractor 3, and the heat that the indicator lamp produced of discharging effectively fast promotes the radiating effect greatly.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. An indicator lamp pin structure is characterized by comprising a lamp holder, a lamp pin and a heat dissipation device, wherein the top of the lamp pin is fixedly connected with the lamp holder, the bottom of the lamp pin extends out of the lamp holder, the middle part of the lamp pin is provided with a lamp pin convex part and a bent part, the lamp pin convex part is positioned inside the lamp holder, the bent part is positioned outside the lamp holder, the bent part is in a K shape, the heat dissipation device comprises a reflecting layer and a heat dissipation layer, the top of the reflecting layer is tightly contacted with the bottom of the lamp holder, the bottom of the reflecting layer is fixedly connected with the top of the heat dissipation layer, the heat dissipation layer comprises a heat dissipation main body, a first fixing block and a second fixing block, two sides of the heat dissipation main body are provided with symmetrical fixing grooves, the fixing grooves are provided with first arc surfaces, the first fixing block and the second fixing block are in interference fit with the fixing grooves, the first fixing block and the second, the composite heat dissipation material comprises a first heat conduction silicone grease layer, a copper layer, a second heat conduction silicone grease layer and an aluminum alloy layer which are fixedly connected in sequence.

2. The pin structure of the indicator lamp according to claim 1, wherein the lamp cap comprises a housing and a light emitting chip, and the light emitting chip is provided with a positive electrode and a negative electrode and is positioned inside the housing.

3. The pin structure of claim 2, wherein the outer surface of the housing is provided with a protective layer, and the protective layer comprises a polyurethane layer.

4. The indicator light pin structure of claim 2, wherein the light pin comprises a first pin and a second pin, and the tops of the first pin and the second pin are electrically connected with the positive electrode and the negative electrode respectively.

5. The pin structure of claim 1, wherein the lamp pin is an integrally formed structure.

6. The pin structure of indicator lamp according to claim 1, wherein the reflective layer is a PC reflector.

7. The pin structure of the indicator lamp according to claim 1, wherein the first fixing block and the second fixing block are wedge-shaped, and the bottom of the first fixing block and the bottom of the second fixing block are provided with poking blocks.

8. The pin structure of indicator light according to claim 1, wherein the heat dissipation layer has a gear shape and a plurality of corrugated grooves are formed on the surface of the gear.

Images