CN201651881U

CN201651881U - LED bulb lamp

Info

Publication number: CN201651881U
Application number: CN2010201317853U
Authority: CN
Inventors: 关英扬; 关颖莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-16
Filing date: 2010-03-16
Publication date: 2010-11-24
Anticipated expiration: 2020-03-16

Abstract

The utility model discloses an LED bulb lamp which comprises a bulb lampshade, a light body and a threaded lamp cap; the lamp body comprises a lamp housing and a diversion seat which is fixedly connected between the lamp housing and the lamp cap; a power supply driving component is arranged in a cavity formed by the diversion seat and the lamp housing; the center of the diversion seat is provided with a radiating hole; the radiating hole is communicated with a vent hole on the lamp housing; a hot substrate is fixed above the radiating hole; an LED light source group is fixed on the hot substrate; a plurality of diversion grooves are distributed in a radiating way on the diversion seat from the radiating hole to the periphery; the tail of each diversion groove is provided with an air hole; the circumference of the side wall of the diversion seat is provided with air grooves which penetrate the air holes; because of the structural design of the lamp, the heat of the LED light source group can be rapidly radiated through the diversion structure of a radiation seat, so that the radiating effect is good, thereby not only solving the radiation problem of a high-power LED but also greatly reducing the size of a radiating body of lamps with the same power and reduces the weight, so that the scope of application of the lamps is wider.

Description

A kind of LED bulb lamp

Technical field

The utility model relates to a kind of bulb lamp, especially a kind of LED bulb lamp.

Background technology

Along with the development of new light sources technology, led light source is low in energy consumption because of it, the extremely market favor of the characteristic of long service life, is applied in lighting field more and more widely.Though led light source has the incomparable advantage of conventional light source, but the thing followed is how to solve this light source heating and heat dissipation problem in use, especially for the high-power LED light source, its heating problem is especially outstanding, has badly influenced the application of high-power LED light source.

Traditional led light source is to rely on the fin heat radiation, its radiating effect depends on the heat conductivility and the area of dissipation of radiator, when the power of led light source is big more, the volume of radiator is also big more, and radiator adopts the multiple-blade structure to quicken heat radiation to increase area of dissipation simultaneously.There is the problem of several aspects in passive heat radiation like this: 1, the radiator volume is excessive, can not be adapted to the less light fixture of installing space; 2, led light source radiator edge heat distributes soon, and the middle part is difficult for heat radiation, produces heat and concentrates, and when temperature is elevated to a certain degree, easily causes the light source decay, brightness deterioration, even damage; 3, the radiator volume is big, has strengthened the weight of whole lamp body, is unfavorable for hanging.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides that a kind of compact conformation, volume are little, the LED bulb lamp of good heat dissipation effect.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of LED bulb lamp, comprise the bulb lamp cover, lamp body and screwed socket, described lamp body comprise lamp housing and be fixedly connected on lamp housing and lamp holder between diversion seat, be equipped with the power drives assembly in the cavity that described diversion seat and lamp housing form, described diversion seat center is provided with louvre, louvre communicates with passage on the lamp housing, louvre upper fixed hot substrate, fixed L ED light source group on the described hot substrate, described diversion seat is divergent shape from its louvre to periphery and is distributed with a plurality of diversion grooves, each diversion groove afterbody is provided with pore, and diversion seat sidewall circumference is provided with the air drain that connects described pore.

As improvement of the technical scheme, the cross section of described diversion groove changes: cross section, nearly louvre place diminishes gradually near the stage casing greatly, becomes big again gradually near the afterbody pore.

As further improvement in the technical proposal, described diversion seat is extended with ring wall to bulb lamp cover direction, and described ring wall inner chamber is provided with screw thread, and described bulb lamp cover is threaded on the diversion seat by ball bubble retainer ring.

The beneficial effects of the utility model are: ccontaining power drives assembly in the cavity that the utility model diversion seat and lamp housing form, and compact conformation effectively utilizes the space; Diversion seat center louvre upper fixed hot substrate, fixed L ED light source group on the hot substrate, the design of the flow-guiding structure of diversion seat make heat that the led light source group produces can be fast flow-guiding structure by diversion seat loose, good heat dissipation effect, not only solved the heat dissipation problem of existing great power LED, and the light fixture of same power, the volume of radiator dwindles greatly, weight saving, the scope of application of light fixture is more wide.

Description of drawings

Following accompanying drawing further specifies the utility model.

Fig. 1 is a stereogram of the present utility model;

Fig. 2 is a cutaway view of the present utility model;

Fig. 3 is a broken away view of the present utility model;

Fig. 4 is the three-dimensional cutaway view of diversion seat.

The specific embodiment

With reference to Fig. 1～Fig. 4, a kind of LED bulb lamp, comprise bulb lamp cover 1, lamp body 2 and screwed socket 3, described lamp body 2 comprise lamp housing 21 and be fixedly connected on lamp housing 21 and lamp holder 3 between diversion seat 22, be equipped with power drives assembly 7 in the cavity that diversion seat 22 and lamp housing 21 form, diversion seat 22 centers are provided with louvre 223, louvre 223 communicates with passage 23 on the lamp housing 21, louvre 223 upper fixed hot substrates 4, fixed L ED light source group 5 on the hot substrate 4, described diversion seat 22 is divergent shape from its louvre 223 to periphery and is distributed with a plurality of diversion grooves 221, each diversion groove afterbody is provided with pore 222, and diversion seat 22 sidewall circumference are provided with the air drain 224 that connects described pore 222.Hot substrate of the present utility model and diversion seat are answered the material of good heat conductivity such as aluminium, steel, pottery.

Adopt the flow-guiding structure design of diversion seat 22 of the present utility model, when led light source group 5 adstante febres, hot substrate 4 temperature raise, and edge's heat distributes soon, and the middle part is difficult for heat radiation, thereby the formation temperature difference, the negative pressure that this temperature difference produces sucks the pore 222 of cold airflow from fluted tail, flows to center louvre 223 through guiding gutter 22 1, arrives the center temperature and edges up, cold airflow constantly replenishes into from afterbody pore 222, constantly discharges from centre bore 223 thereby promote thermal current.Air-flow constantly flows in flow-guiding channel in the entire heat dissipation process; form an air conducting system; become passive heat radiation and be active heat removal; constantly take away the heat of hot substrate; radiating efficiency improves greatly; the temperature of led light source group also is unlikely to rise too high, thereby helps protecting light source, increases the service life.When the power of led light source group is big more, this temperature difference is just big more, also helps forming flow conductance more, and the raising of radiating efficiency is obvious more.

In the present embodiment, a plurality of guiding gutters 22 1 adopt M shape to disperse distribution.Diversion seat 22 is connected fastening with bulb lamp cover 1 in the following way: diversion seat 22 is extended with ring wall 225 to bulb lamp cover 1 direction, and described ring wall inner chamber is provided with screw thread, and bulb lamp cover 1 is threaded on the diversion seat 22 by ball bubble retainer ring 6.Compact conformation, easy accessibility.

In order to realize best water conservancy diversion effect, the utility model can be further improved, with the Cross section Design of diversion groove 221 is what change: cross section, caudad pore 222 place is big, diminish gradually near the stage casing, become big again gradually near louvre 223 places, center, promptly form an air-flow guiding channel, air-flow is drained from center louvre 223 from diversion seat afterbody pore 222 drainages to guiding gutter 221 again.Certainly; can also adopt other forms of flow-guiding channel design; the cited form of present embodiment can not be as the restriction to the utility model protection domain, everyly realizes the purpose of this utility model and technique effect with essentially identical structure, all should belong to protection domain of the present utility model.

In addition, the pore 222 of diversion groove afterbody except that with diversion seat 22 sidewall circumference on air drain 224 connect, also vertically connect diversion seat 22, so that quicken heat radiation.

Installation and maintenance for the ease of power drives assembly 7 in the lamp housing 21 are connected with tail-hood 24 at lamp housing 21 tailing screw flights, passage 23 are arranged on the circumference of tail-hood 24 end faces.

Diversion seat center louvre upper fixed hot substrate, fixed L ED light source group on the hot substrate, the design of the flow-guiding structure of diversion seat make heat that the led light source group produces can be fast flow-guiding structure by diversion seat loose, good heat dissipation effect, not only solved the heat dissipation problem of existing great power LED, and the light fixture of same power, the volume of radiator dwindles greatly, weight saving, the scope of application of light fixture is more wide.

Claims

1. LED bulb lamp, comprise bulb lamp cover (1), lamp body (2) and screwed socket (3), it is characterized in that: described lamp body (2) comprise lamp housing (21) and be fixedly connected on lamp housing (21) and lamp holder (3) between diversion seat (22), be equipped with power drives assembly (7) in the cavity that described diversion seat (22) and lamp housing (21) form, described diversion seat (22) center is provided with louvre (223), louvre (223) communicates with passage (23) on the lamp housing (21), louvre (223) upper fixed hot substrate (4), described hot substrate (4) is gone up fixed L ED light source group (5), described diversion seat (22) is divergent shape from its louvre (223) to periphery and is distributed with a plurality of diversion grooves (221), each diversion groove afterbody is provided with pore (222), and diversion seat (22) sidewall circumference is provided with the air drain (224) that connects described pore (222).

2. LED bulb lamp according to claim 1, it is characterized in that: described diversion seat (22) is extended with ring wall (225) to bulb lamp cover (1) direction, described ring wall inner chamber is provided with screw thread, and described bulb lamp cover (1) is threaded on the diversion seat (22) by ball bubble retainer ring (6).

3. LED bulb lamp according to claim 1 and 2 is characterized in that: the cross section of described diversion groove (221) changes: nearly louvre (223) is located the cross section greatly, diminishes gradually near the stage casing, becomes big again gradually near afterbody pore (223).

4. LED bulb lamp according to claim 1 and 2 is characterized in that: the pore of described diversion groove afterbody (222) vertically connects diversion seat (22).

5. LED bulb lamp according to claim 1 and 2 is characterized in that: described lamp housing (21) also comprises the tail-hood (24) that tailing screw flight connects, and described passage (23) is arranged on the circumference of tail-hood (24) end face.

6. LED bulb lamp according to claim 1 is characterized in that: the distribution of described a plurality of diversion grooves (221) is M shape.