CN205716521U - A kind of straight barrel type stack effect bulb lamp strengthening heat loss through convection - Google Patents

Abstract

nullThe utility model discloses a kind of straight barrel type stack effect bulb lamp strengthening heat loss through convection，By arranging multiple hollow straight-tube shape chimney passage got through up and down on a heat sink，And make chimney passage arrange around substrate，The heat produced during the work of LED light source module is first delivered on substrate，It is delivered to radiator again by substrate，Cold air chimney feeder connection bottom radiator enters，Along chimney passage，Take away the heat on radiator，And continue up the chimney feeder connection from radiator top and drain，New cold air chimney feeder connection on front side of radiator goes successively to，The mobility of LED surrounding air is strengthened with this，Carry out unimpeded、Quickly Natural Heat Convection，The straight barrel type stack effect bulb lamp of this enhancing heat loss through convection，Avoid common chimney structure air flow in lamp body generation eddy current，Thus the problem reducing rate of air circulation，Therefore there is its good heat dissipation effect，Simple and reasonable，Practical advantage.

Description

A kind of straight barrel type stack effect bulb lamp strengthening heat loss through convection

Technical field

This utility model relates to LEDbulb lamp field of radiating, a kind of straight barrel type stack effect bulb lamp strengthening heat loss through convection.

Background technology

nullLED (light emitting diode，Light Emitting Diode)，It it is a kind of quasiconductor that can convert electrical energy into luminous energy，Compared with conventional lamp，Its advantage is obvious: have radiationless、Light efficiency is high、Low-power consumption、The advantages such as life-span length and easy of integrationization，It is to cause illumination revolution and the light source of new generation of traditional lighting upgrading of industries，Particularly in the today being the theme with energy-saving and emission-reduction and low-carbon environment-friendly，Semiconductor lighting becomes new growth engines especially，Thus paid much attention to by national governments and industrial circle，In current LEDbulb lamp，Its LED light source plate typically use plurality of LEDs chip concatenation or and the mode that connects be welded on circuit board (or heat sink)，Owing to LED chip needs good heat radiation，And the LED chip centralized arrangement in existing LEDbulb lamp causes its heat dispersion the most undesirable，And then have impact on the service life of whole LEDbulb lamp，In order to reach higher intensity of illumination，The power of LED light source is more and more higher，The temperature of LED light source is easy to raise therewith，The impact produced has: LED light spectrum red shift、Light efficiency reduces、Stress loss and life-span are short etc.，So the heat dissipation problem of LED is the obstacle that power type LED light source is universal，Free convection is approved most reliable passive heat radiation，Compare radiating mode actively，It has without external energy、Movement-less part、Noiseless、The advantages such as life-span length and low cost，Common LED heat radiation is dispelled the heat mainly by the free convection of air，But effect is not ideal enough，It is typically to arrange and carries gelled radiator，And by increasing the quantity of fin，Increase area of dissipation，Heat-sinking capability can be strengthened to a certain extent，But there is air flow resistance sometimes，Air flow property is poor，Radiating effect is undesirable，And it is unstable，Also there is higher heat radiation cost.

Utility model content

In order to solve the above-mentioned problems in the prior art, this utility model provides a kind of air flow property strong and the straight barrel type stack effect bulb lamp strengthening heat loss through convection of good heat dissipation effect.

The technical scheme that this utility model provides is as follows: include ball cell-shell, LED light source module, substrate, radiator and lamp holder, described substrate is arranged on the end face of described radiator, described lamp holder is arranged on the lower section of described radiator, described LED light source module is arranged on the substrate, described ball cell-shell be located in the top of described radiator and lid sets residence and states LED light source module and substrate, it is characterized in that: on described radiator, offer multiple hollow straight-tube shape chimney passage, described each chimney passage includes a upper outlet and a lower inlet, described upper outlet is circumferentially arranged in the surrounding of described substrate, the running mouth is circumferentially opened in the bottom of described radiator.

In preferred embodiment of the present utility model, described radiator end face is provided with gripper shoe to support described substrate.

In preferred embodiment of the present utility model, described support plate top surface offers ring-type snap groove, the corresponding described snap groove in the bottom of described ball cell-shell is provided with ring-type engaging portion, is fixed together by described engaging portion and described coordinating of snap groove between described ball cell-shell and described radiator.

In preferred embodiment of the present utility model, described substrate is set to discoid, and the area that described snap groove surrounds is arranged more than the area of described substrate.

In preferred embodiment of the present utility model, also include driving power supply, described radiator is provided with driving cavity volume to house described driving power supply.

In preferred embodiment of the present utility model, the end face of described substrate is electroplate with one layer of reflectance coating.

In preferred embodiment of the present utility model, described LED light source module is arranged on described substrate with Concentric circle array form by multiple LED light-emitting particles.

nullWhat this utility model produced has the beneficial effects that: the straight barrel type stack effect bulb lamp strengthening heat loss through convection in this utility model is by arranging multiple hollow straight-tube shape chimney passage got through up and down on a heat sink，And make chimney passage arrange around substrate，The heat produced during the work of LED light source module is first delivered on substrate，It is delivered to radiator again by substrate，Cold air chimney feeder connection bottom radiator enters，Along chimney passage，Take away the heat on radiator，And continue up the chimney feeder connection from radiator top and drain，New cold air chimney feeder connection on front side of radiator goes successively to，The mobility of LED surrounding air is strengthened with this，Carry out unimpeded、Quickly Natural Heat Convection，The straight barrel type stack effect bulb lamp of this enhancing heat loss through convection，Avoid common chimney structure air flow in lamp body generation eddy current，Thus the problem reducing rate of air circulation，Therefore there is its good heat dissipation effect，Simple and reasonable，Practical advantage.

Accompanying drawing explanation

Fig. 1 is the front view of the straight barrel type stack effect bulb lamp of enhancing heat loss through convection of the present utility model；

Fig. 2 is the three-dimensional exploded view of the straight barrel type stack effect bulb lamp strengthening heat loss through convection shown in Fig. 1；

Fig. 3 is the profile of radiator in the straight barrel type stack effect bulb lamp strengthening heat loss through convection shown in Fig. 1.

Detailed description of the invention

nullSee Fig. 1 to Fig. 3，The straight barrel type stack effect bulb lamp of this enhancing heat loss through convection includes ball cell-shell 10、LED light source module 20、Radiator 30、Substrate 40 and lamp holder 50，Substrate 40 is arranged on the end face of radiator 30，Lamp holder 50 is arranged on the lower section of radiator 30，LED light source module 20 is arranged on substrate 40 with Concentric circle array form by multiple LED light-emitting particles，Ball cell-shell 10 be located in the top of radiator 30 and lid sets LED light source module 20 and substrate 40，Ball cell-shell 10 is made up of highly heat-conductive material and diffusant，Multiple hollow straight-tube shape chimney passage 31 is offered on radiator 30，Each chimney passage 31 includes a upper outlet 311 and a lower inlet 312，Upper outlet 311 is circumferentially arranged in the surrounding of substrate 40，Lower inlet 312 is circumferentially opened in the bottom of radiator 30，Radiator 30 is made of a highly heat conductive material，Radiator 30 end face is provided with gripper shoe 32 to support substrate 40，Gripper shoe 32 end face offers ring-type snap groove 321，The bottom correspondence snap groove 321 of ball cell-shell 10 is provided with ring-type engaging portion 11，It is fixed together with coordinating of snap groove 321 by engaging portion 11 between ball cell-shell 10 with radiator 30，The end face of substrate 40 is electroplate with one layer of reflectance coating (not shown)，Substrate 40 is made of a highly heat conductive material，Substrate 40 is set to discoid，Substrate 40 end face is provided with PCB (not shown)，The area that snap groove 321 surrounds is arranged more than the area of substrate 40，Also include driving power supply 60，Radiator 30 is provided with driving cavity volume 33 and drives power supply 60 to house.

During work, the heat produced when LED light source module 20 works first is delivered on substrate 40, it is delivered to radiator 30 again by substrate 40, cold air chimney passage lower inlet 312 bottom radiator 30 enters, along chimney passage 31, take away the heat on radiator 30, and continue up the chimney passage upper outlet 311 from radiator 30 top and drain, new cold air chimney passage lower inlet 312 bottom radiator 30 goes successively to, strengthen the mobility of LED surrounding air with this, carry out Natural Heat Convection unimpeded, quick.

nullIn sum，The straight barrel type stack effect bulb lamp of this enhancing heat loss through convection is by arranging multiple hollow straight-tube shape chimney passage 31 got through up and down on radiator 30，And make chimney passage 31 arrange around substrate 40，The heat produced when LED light source module 20 works first is delivered on substrate 40，It is delivered to radiator 30 again by substrate 50，Cold air chimney passage lower inlet 312 bottom radiator enters，Along chimney passage 31，Take away the heat on radiator 30，And continue up the chimney passage upper outlet 311 from radiator 30 top and drain，New cold air chimney passage lower inlet 312 bottom radiator 30 goes successively to，Special straight barrel type chimney structure，Avoid common chimney structure air flow in lamp body generation eddy current，Thus the problem reducing rate of air circulation，Therefore the straight barrel type stack effect bulb lamp of this enhancing heat loss through convection has good heat dissipation effect，Simple and reasonable，Practical advantage.

Above are only a specific embodiment of the present utility model, but design concept of the present utility model is not limited thereto, all changes utilizing this design that this utility model carries out unsubstantiality, the behavior invading this utility model protection domain all should be belonged to.

Claims (7)

1. the straight barrel type stack effect bulb lamp strengthening heat loss through convection, including ball cell-shell, LED light source module, substrate, radiator and lamp holder, described substrate is arranged on the end face of described radiator, described lamp holder is arranged on the lower section of described radiator, described LED light source module is arranged on the substrate, described ball cell-shell be located in the top of described radiator and lid sets residence and states LED light source module and substrate, it is characterized in that: on described radiator, offer multiple hollow straight-tube shape chimney passage, described each chimney passage includes a upper outlet and a lower inlet, described upper outlet is circumferentially arranged in the surrounding of described substrate, the running mouth is circumferentially opened in the bottom of described radiator.

The straight barrel type stack effect bulb lamp of enhancing heat loss through convection the most according to claim 1, it is characterised in that: described radiator end face is provided with gripper shoe to support described substrate.

The straight barrel type stack effect bulb lamp of enhancing heat loss through convection the most according to claim 2, it is characterized in that: described support plate top surface offers ring-type snap groove, the corresponding described snap groove in the bottom of described ball cell-shell is provided with ring-type engaging portion, is fixed together by described engaging portion and described coordinating of snap groove between described ball cell-shell and described radiator.

The straight barrel type stack effect bulb lamp of enhancing heat loss through convection the most according to claim 3, it is characterised in that: described substrate is set to discoid, and the area that described snap groove surrounds is arranged more than the area of described substrate.

The straight barrel type stack effect bulb lamp of enhancing heat loss through convection the most according to claim 1, it is characterised in that: also include driving power supply, described radiator is provided with driving cavity volume to house described driving power supply.

The straight barrel type stack effect bulb lamp of enhancing heat loss through convection the most according to claim 1, it is characterised in that: the end face of described substrate is electroplate with one layer of reflectance coating.

The straight barrel type stack effect bulb lamp of enhancing heat loss through convection the most according to claim 1, it is characterised in that: described LED light source module is arranged on described substrate with Concentric circle array form by multiple LED light-emitting particles.