CN209309711U

CN209309711U - A kind of light source is the light bulb of COB mould group

Info

Publication number: CN209309711U
Application number: CN201822127823.7U
Authority: CN
Inventors: 周小军; 夏奇军
Original assignee: Ningbo Klite Electric Manufacture Co Ltd
Current assignee: Ningbo Klite Electric Manufacture Co Ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2019-08-27
Anticipated expiration: 2028-12-18

Abstract

The utility model relates to the light bulbs that a kind of LED light more particularly to a kind of light source are COB mould group.The light bulb includes the lamp cap of a cloche and a cooperating therewith connection, the cloche is internally provided with a stem, one piece of COB mould group is fixedly connected on the stem, and the positive and negative anodes of COB mould group are connect with the lead wire circuit internally extended on stem to cloche respectively, the lead other end along stem to extend outside cloche and with driving plate circuit connection, the driving plate is fixedly mounted on inside lamp cap, so that all components become an entirety.The utility model overcomes the heat generated when LED light work in the prior art and can not be discharged in time, causes the defect of LED light service life reduction, thus has heat transfer efficiency height, good heat dissipation effect；The advantages of effectively extending the service life of LED light.

Description

A kind of light source is the light bulb of COB mould group

Technical field

The utility model relates to the light bulbs that a kind of LED light more particularly to a kind of light source are COB mould group.

Background technique

LED was also known as light emitting diode (Light Emitting Diode), belongs to semiconductor subassembly, from Americanologist in 1962 With electric corporation develop the whole world the first can the red-light LED of practical application start, LED has marched toward the full-color epoch so far.LED's Principle of luminosity is the P-N diode being combined by the P-type semiconductor containing electric hole with the N-type semiconductor containing electronics in simple terms, P-N diode both ends add forward bias voltage drop, when an electric current passes through it, electrons and holes can release energy when flowing to engagement face bonding and It shines.

COB light source is that the high photosynthetic efficiency being placed directly against LED chip on the mirror metal substrate of high reflecting rate integrates area source Technology, this technology eliminate bracket concept, electroless plating, without Reflow Soldering, without patch process, therefore process reduces nearly one third, Cost also saves one third.

The LED light of COB light source as all electronic components, can all be generated during use or running thermal energy and Temperature rise phenomenon will lead to LED and do sth. in advance the result burnt because of high temperature if ignoring heat dissipation problem.The design of LED lamp is more traditional Lamps and lanterns are complicated, include optics, mechanism, electronics and heat dissipation, wherein " heat dissipation " is even more important, because current high power LED lamp Conversion ratio, which only has 20%, can be converted into light, remaining 80% can be converted to heat, if cannot will be unable to reach by except heat derives lamps and lanterns The 50000 hour service life declared to LED light source, while heat will affect the luminous efficiency of LED, and serious light decay and lamps and lanterns is caused to be ruined The tragic situation of damage.

Such as a kind of a kind of LED ceiling lamp authorized in Chinese patent document, Authorization Notice No. CN 201935084 comprising mirror surface aluminium sheet is arranged in pedestal on pedestal, in the COB mould group of mirror surface surface of aluminum plate setting LED, and Heat conducting coating is arranged in the one side contacted in the COB mould group with mirror surface aluminium sheet.The utility model is structurally reasonable, and mirror surface aluminium sheet has Help improve the light efficiency of whole lamp, driving power is mounted on the recess of pedestal, shade will not be formed on outer casing of ceiling lamp, still Its heat-conducting silicone grease coating for passing through COB mould group bottom, is radiated, this radiating mode makes heat always using mirror surface aluminium sheet Inside LED light, heat can not be discharged to outside LED light, if things go on like this be easily reduced LED service life.

Summary of the invention

It is to be made to overcome the heat generated when LED light work in the prior art not to be discharged in time in the utility model At the defect of LED light service life reduction, a kind of one kind that the heat generated when effectively LED light can work is discharged in time is provided Light source is the light bulb of COB mould group.

For achieving the above object, the utility model is achieved through the following technical solutions:

A kind of light source is the light bulb of COB mould group, and the light bulb includes a cloche and a cooperating therewith company The lamp cap connect, the cloche are internally provided with a stem, and one piece of COB mould group is fixedly connected on the stem, and The positive and negative anodes of COB mould group are connect with the lead wire circuit internally extended on stem to cloche respectively, the lead other end Along stem to extend outside cloche and with driving plate circuit connection, the driving plate is fixedly mounted on inside lamp cap, makes Obtaining all components becomes an entirety, and the COB mould group includes two pieces of metal substrates and one block of heat sink, the metal Substrate is pasted by heat-conducting glue to be arranged on two end faces of heat sink, the metal substrate far from the surface of heat sink also Fixation is adhesive with several LED chips arranged in arrays.

The luminescence component of your inside of LED bulb in the utility model is one piece of COB mould group, and LED chip is directly pasted On metallic substrates, reduce the bracket concept in traditional LED lamp, at the same electroless plating, without Reflow Soldering, without patch process, therefore Process reduces nearly one third, and cost also saves one third.In addition, the COB mould group in the utility model also added one Block heat sink can effectively conduct the heat that generates when working from LED chip, thus effectively by heat from LED chip It is successively transmitted to outside LED light by metal substrate and heat sink, thus work calories in effective solution traditional LED lamp It is easy accumulative defect.

Preferably, the heat sink is in hollow structure, it is internally provided with a cavity, the cavity inside is filled out It fills and is provided with conduction oil.

Heat sink in the utility model has been filled in hollow structure and wherein conduction oil, so that heat When being transmitted to heat sink, can effectively be conducted by conduction oil therein, so as to increase radiating efficiency.

Preferably, extending an oil guide pipe at the top of the heat sink, the oil guide pipe perforation stem setting is simultaneously With cavity connection, the oil guide pipe top is provided with the heat exchanger of a boring, the cavity, oil guide pipe and Heat exchanger three's oil circuit connection.

Oil guide pipe is arranged, and you enable to the hot oil of heat sink cavity inside that can move upwards along oil guide pipe, thus will Heat transfer is acted on into heat exchanger by the heat exchange of heat exchanger, and conduction oil is cooling, and conduction oil after cooling can be along leading Oil pipe turns again in cavity downwards, to realize the circulation of heat transfer.

Preferably, the diameter of the heat exchanger is identical as the internal diameter of lamp cap, when lamp cap is fixedly connected with cloche When, lamp cap inner wall is close in heat exchanger side.

It is close to lamp cap inner wall so as to which the heat on heat exchanger can be effectively transmitted to lamp in heat exchanger side Head, to be transmitted to outside LED light by air flowing.

Therefore, the utility model has the following beneficial effects:

(1) heat transfer efficiency is high, good heat dissipation effect；

(2) service life of LED light is effectively extended.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the utility model.

Fig. 2 is the COB modular structure schematic diagram of the utility model.

Fig. 3 is the structural schematic diagram of the heat sink of the utility model.

Wherein: cloche 1, stem 3, driving plate 4, lamp cap 5, lead 6, metal substrate 7, heat sink 8, is led COB mould group 2 Hot glue 9, LED chip 10, cavity 11, oil guide pipe 12, heat exchanger 13.

Specific embodiment

With reference to the accompanying drawings of the specification and specific embodiment is described further the utility model.

As shown in Fig. 1 ~ 3, a kind of light source is the light bulb of COB mould group, and the light bulb includes a cloche 1 and one The lamp cap 5 of cooperating therewith connection, the cloche 1 are internally provided with a stem 3, are fixedly connected on the stem 3 Have one piece of COB mould group 2, and the positive and negative anodes of COB mould group 2 respectively with 6 circuit of lead from stem 3 to cloche 1 that internally extended on Connection, 6 other end of lead along stem 3 to extend outside cloche 1 and with 4 circuit connection of driving plate, the drive Movable plate 4 is fixedly mounted on inside lamp cap 5, so that all components become an entirety, the COB mould group 2 includes two blocks of metals Substrate 7 and one block of heat sink 8, the metal substrate 7 is pasted by heat-conducting glue 9 to be arranged on two end faces of heat sink 8, Also fixation is adhesive with several LED chips 10 arranged in arrays, this reality on the surface of the metal substrate 7 far from heat sink 8 It is added to one block of heat sink with the COB mould group in novel, can effectively conduct the heat generated when working from LED chip, So that heat is successively effectively passed through metal substrate from LED chip and heat sink is transmitted to outside LED light, the heat dissipation Plate 8 is in hollow structure, is internally provided with a cavity 11, and the cavity inside has been filled with conduction oil, so that Heat can effectively be conducted by conduction oil therein when being transmitted to heat sink, so as to increase radiating efficiency, Extend an oil guide pipe 12 at the top of heat sink 8, the oil guide pipe 12 penetrate through the setting of stem 3 and with 11 connection of cavity, it is described 12 top of oil guide pipe be provided with the heat exchanger 13 of a boring, the cavity 11, oil guide pipe 12 and heat exchange 13 three's oil circuit connection of device, oil guide pipe is arranged, and you enable to the hot oil of heat sink cavity inside that can transport upwards along oil guide pipe It is dynamic, to transfer heat in heat exchanger, acted on by the heat exchange of heat exchanger, conduction oil is cooling, conduction oil after cooling It can be turned again in cavity downwards along oil guide pipe, to realize the circulation of heat transfer., the diameter of heat exchanger 13 with The internal diameter of lamp cap 5 is identical, and when lamp cap 5 is fixedly connected with cloche 1,5 inner wall of lamp cap, heat exchange are close in 13 side of heat exchanger It is close to lamp cap inner wall so as to which the heat on heat exchanger can be effectively transmitted to lamp cap, to pass through air in device side Flowing is transmitted to outside LED light.

Claims

1. the light bulb that a kind of light source is COB mould group, which is characterized in that the light bulb includes a cloche (1) and one The lamp cap (5) of cooperating therewith connection, the cloche (1) are internally provided with a stem (3), on the stem (3) It is fixedly connected with one piece of COB mould group (2), and the positive and negative anodes of COB mould group (2) prolong on stem (3) to cloche (1) is internal respectively Lead (6) circuit connection of stretching, the lead (6) other end along stem (3) to extend outside cloche (1) and with drive Movable plate (4) circuit connection, it is internal that the driving plate (4) is fixedly mounted on lamp cap (5), so that all components are whole as one Body, the COB mould group (2) include that two pieces of metal substrates (7) and one piece of heat sink (8), the metal substrate (7) pass through Heat-conducting glue (9), which is pasted, to be arranged on two end faces of heat sink (8), surface of the metal substrate (7) far from heat sink (8) On also fixation be adhesive with several LED chips arranged in arrays (10).

2. the light bulb that a kind of light source according to claim 1 is COB mould group, which is characterized in that the heat sink (8) is in Hollow structure, is internally provided with a cavity (11), and the cavity inside has been filled with conduction oil.

3. the light bulb that a kind of light source according to claim 1 or 2 is COB mould group, which is characterized in that the heat sink (8) oil guide pipe (12) is extended at top, the oil guide pipe (12) penetrate through stem (3) setting and with cavity (11) connection, Described oil guide pipe (12) top is provided with the heat exchanger (13) of a boring, the cavity (11), oil guide pipe (12) and heat exchanger (13) three's oil circuit connection.

4. the light bulb that a kind of light source according to claim 3 is COB mould group, which is characterized in that the heat exchanger (13) diameter is identical as the internal diameter of lamp cap (5), when lamp cap (5) is fixedly connected with cloche (1), heat exchanger (13) side It is close to lamp cap (5) inner wall.