CN204254330U - Lighting device - Google Patents

Abstract

The utility model discloses a kind of lighting device, it comprises: base station, and for supporting illuminating module, it includes the pedestal be exposed in extraneous air; Diffuser, cover is connected to above described pedestal; And thermal resistance parts, be arranged between described diffuser and described pedestal, for stoping heat trnasfer therebetween.Adopt lighting device of the present utility model, thermal resistance parts are set between diffuser and pedestal, the working environment of diffuser can be ensured.

Description

Lighting device

Technical field

The utility model relates to lighting field, and specifically, the utility model relates to a kind of lighting device.

Background technology

Lighting device has generally included incandescent lamp and LED etc., and have the advantages such as luminous efficiency is high, the life-span is long using light emitting diode as the LED of light source, it instead of traditional incandescent lamp gradually, by people are widely used.

For LED, in prior art, LED has generally included diffuser and drain pan, diffuser cover is connected on drain pan, illuminating module etc. are positioned at diffuser and drain pan, such as, publication number is disclose one " illumination light source and lighting device " in the patent document of CN203784682, can find out in conjunction with its explanatory note and accompanying drawing, this lighting device includes lampshade, base station, radiator and peripheral casing, radiator muff-joint is loaded on the outside of base station, and peripheral casing is set in outside radiator.This lighting device, in use, the heat of its radiator and peripheral casing is easily passed to lampshade, thus affects the illumination effect of lampshade, and shortens its service life.

For above problem, provide a kind of new lighting device significant.

Utility model content

For solving the problem, the utility model provides a kind of lighting device, and it can prevent heat disturbance to diffuser, ensures its working environment.

For achieving the above object, lighting device of the present utility model, it comprises:

Base station, for supporting illuminating module, it includes the pedestal be exposed in extraneous air;

Diffuser, cover is connected to above described pedestal; And,

Thermal resistance parts, are arranged between described diffuser and described pedestal, for stoping heat trnasfer therebetween.

Preferably, described base station also includes pillar, and described pillar is connected to above described pedestal, and described illuminating module is installed on described pillar.

Further, described pedestal is ceramic material, and described pillar is metal material.

Preferably, described base station also includes the boss be positioned at above described pedestal, and described diffuser includes the main part in uncovered shape and shunk the necking end formed by described main part, and described thermal resistance parts are set in outside described boss and described necking end.

Preferably, be formed with accommodation cavity in described pedestal, the circuit unit for providing electric power to supply for described illuminating module is placed in described accommodation cavity.

Further, this lighting device also comprises lamp holder, and described lamp holder is connected with described pedestal.

Preferably, be connected with resin piece below described pedestal, be jointly formed with accommodation cavity in described pedestal and described resin piece, the circuit unit for providing electric power to supply for described illuminating module is placed in described accommodation cavity.

Further, this lighting device also comprises lamp holder, and described lamp holder is connected with described resin piece.

Preferably, described thermal resistance parts are transparent material.

Preferably, described thermal resistance parts are resin heat-retarding ring.

Lighting device of the present utility model, the pedestal of its base station is exposed in extraneous air, the thermal resistance parts between pedestal and diffuser, can effectively stop heat to be passed to diffuser, thus ensures the translucent effect of diffuser, and extends its service life.Thermal resistance subassembly selection is transparent material, can strengthen light distribution effect.

Accompanying drawing explanation

Fig. 1 is the structural representation of an embodiment of lighting device of the present utility model;

Fig. 2 is the decomposing schematic representation of Fig. 1;

Fig. 3 is that the A-A of Fig. 1 is to cross-sectional schematic.

Detailed description of the invention

Below, by reference to the accompanying drawings, structure of the present utility model and operation principle etc. are further described.

It should be noted that, lighting device of the present utility model, can be bulb lamp, lamp affixed to the ceiling and fluorescent tube etc., as long as it has similar structures such as diffuser, illuminating module and base station and applicable.

Composition graphs 1 ~ Fig. 3 is that embodiment is described the utility model with bulb lamp.

Fig. 1 shows the external structure of bulb lamp.

See Fig. 1, the external structure of this bulb lamp mainly comprises lamp holder 5, resin piece 4, base station 3, thermal resistance parts 2 and diffuser 1, and each parts are roughly in the relation be arranged in order from the bottom to top.Wherein, for the lamp of the other types that lighting device of the present utility model is contained, such as, lamp affixed to the ceiling, lamp holder 5 is optional.

Lamp holder 5 is arranged in figure bottom, can be connected, can power for this bulb lamp when the power is turned on lamp socket (not shown).Resin piece 4 can be selected to arrange as required, and when being provided with resin piece 4, it is connected on lamp holder 5.Base station 3 is connected to the top of resin piece 4, and it includes the pedestal 301 be exposed in extraneous air, this pedestal 301 not by diffuser 1 or miscellaneous part wrap up, and directly to contact with extraneous air.Diffuser 1 is made up of the resin material or glass with light transmission, and its cover is connected on pedestal 301, externally disperses for the light illuminating module being positioned at its inside sent.

In the utility model, thermal resistance parts 2 are added between the pedestal 301 and diffuser 1 of base station 3, these thermal resistance parts 2 can stop the heat trnasfer between pedestal 301 and diffuser 1, effectively prevent heat disturbance in base station 3 and resin piece 4 to diffuser 1, ensure the works fine environment of diffuser 1, specifically launch hereinafter to describe.

Fig. 2 shows the decomposition texture of bulb lamp, and Fig. 3 shows the sectional structure of bulb lamp, and this two width figure can be used for representing the general shape of bulb lamp each parts and its annexation each other.

See Fig. 2, Fig. 3, base station 3 is support component is also thermal component, as support component, for supporting illuminating module 6; As thermal component, for the heat of illuminating module 6 is shed.

As shown in Fig. 2, Fig. 3, base station 3 includes the pedestal 301 be exposed in extraneous air, and this pedestal 301 is arranged in the mode of the outer shape adapting to bulb lamp, and it has roughly tapered outline.The height dimension of pedestal 301 can need set according to the use of reality, and further, as comparatively large in its size, be enough to accommodating circuit unit 8, then pedestal 301 can directly be connected with lamp holder 5; As less in its size, be not enough to accommodating circuit unit 8, then pedestal 301 can be connected with lamp holder 5 by resin piece 4.Resin piece 4 has bottom roughly cylindrically and the top roughly in frusto-conical shape, and this bottom has screw thread, can with the screw thread tabling of lamp holder 5 inwall, this top is connected with pedestal 301, is specifically as follows the modes such as gluing.

Base station 3 can also include stepped boss 302, and this boss 302 is positioned at above pedestal 301.Middle position above this boss 302 can be provided with pillar 303, also can not arrange pillar 303.Accordingly, when being provided with pillar 303 above boss 302, illuminating module 6 is installed on this pillar 303; When not arranging pillar 303 above boss 302, illuminating module 6 can directly be installed on this boss 302.But when being provided with pillar 303 above boss 302, the area of dissipation of illuminating module 6 increases, and can obtain better radiating effect, and illuminating module 6 is elevated relative to the position of boss 302, thus can obtains better illumination effect.In addition, if base station 3 is not containing boss 302, pillar 303 also can be directly fixed on pedestal 301.

As shown in Figure 2, illuminating module 6 is fixed on pillar 303, and its mode that specifically can be connected by gluing mode or screw is realized.Illuminating module 6 is light sources of this bulb lamp, and it possesses the installation base plate 601 be roughly square and the luminous component 602 be configured on this installation base plate 601, such as LED.Because the lower surface of illuminating module 6 contacts with pillar 303 forming surface, so the thermal capacitance produced by illuminating module 6 is easily conducted to base station 3, so base station 3 is preferably formed by the material that heat-conductive characteristic is good.As a kind of preferred embodiment, the pedestal 301 of base station is chosen as different materials from pillar 303: pedestal 301 is ceramic material, and pillar 303 is metal material.This setup, can make base station 3 entirety have good heat dispersion.In addition, ceramic material, also has good electrical insulation capability, can ensure to form good insulation between circuit unit 8 and illuminating module 6.

Illuminating module 6 provides electric power to supply by circuit unit 8, and as shown in Figure 2, circuit unit 8 possesses circuit substrate 801 and is installed on the electronic component 802 on this circuit substrate 801.Circuit unit 8 is connected with lamp holder 5, to access external power by two input leads 10; Circuit unit 8 is connected with illuminating module 6 by two output leads 7, to power for illuminating module.In conjunction with noted earlier, when pedestal 301 height dimension of base station 3 is larger, can be formed in pedestal 301 and hold cavity, the circuit unit 8 for providing electric power to supply for illuminating module 6 is placed in this accommodation cavity; As shown in Figure 2 and Figure 3, when pedestal 301 height dimension of base station 3 is not enough to accommodating circuit unit 8, resin piece 4 can be connected below pedestal 301, jointly be formed in pedestal 301 with resin piece 4 and hold cavity 9, the circuit unit 8 for providing electric power to supply for illuminating module 6 is placed in this accommodation cavity 9.

As bulb lamp, diffuser 1 is spherical in shape, elliposoidal or candle etc. usually.Illuminating module 6 is covered by diffuser 1, and the light transmission diffuser 1 of illuminating module 6 is to external exposure.As shown in FIG., diffuser 1 has main part 102 and is positioned at the necking end 101 below main part 102, this necking end 101 is shunk by main part 102 and forms, and this mode is formed with step outside necking end 101, is convenient to fill adhesive thus be connected with miscellaneous part by diffuser 1.

Thermal resistance parts 2 are configured between pedestal 301 and diffuser 1, transmit so that block the heat (from illuminating module 6 and circuit unit 8) of pedestal 301 to diffuser 1, prevent that diffuser 1 temperature is too high affects its translucent effect.As a kind of mode, thermal resistance parts 2 are set in outside boss 302 and necking end 101.As shown in fig. 1, the outer surface of the main part 102 of the outer surface of thermal resistance parts 2 and the outer surface of pedestal 301 and diffuser 1 is roughly on same arcwall face.Thermal resistance parts 2 can be connected by adhesive with diffuser 1 and pedestal 301, are surrounded by groove between three, can fill adhesive in the cell, certainly, also can be chosen as modes such as being threaded.

Consider from the angle of luminous intensity distribution, thermal resistance parts 2 are preferably transparent material, and it can ensure the light distribution angle of this bulb lamp, improve illumination effect.

The material of thermal resistance parts 2, can select from existing material, as long as it has good thermal resistance performance, such as, in the utility model, thermal resistance parts 2 can be chosen as resin thermal resistance parts.

The shape of thermal resistance parts 2 can make all more options, such as simple circular, or other distortion, such as, thermal resistance parts shown in Fig. 2, Fig. 3 are heat-retarding ring, its section is roughly in L shape, and the shape of thermal resistance parts 2 makes it be convenient to match with diffuser 1 and pedestal 301.In conjunction with the description of epimere, thermal resistance parts 2 can be chosen as resin heat-retarding ring etc.

Above, be only schematic description of the present utility model, it will be recognized by those skilled in the art that on the basis of not departing from operation principle of the present utility model, can make multiple improvement to the utility model, this all belongs to protection domain of the present utility model.

Claims (10)

1. a lighting device, is characterized in that, comprising:

Base station, for supporting illuminating module, it includes the pedestal be exposed in extraneous air;

Diffuser, cover is connected to above described pedestal; And,

Thermal resistance parts, are arranged between described diffuser and described pedestal, for stoping heat trnasfer therebetween.

2. lighting device as claimed in claim 1, it is characterized in that, described base station also includes pillar, and described pillar is connected to above described pedestal, and described illuminating module is installed on described pillar.

3. lighting device as claimed in claim 2, it is characterized in that, described pedestal is ceramic material, and described pillar is metal material.

4. lighting device as claimed in claim 1, it is characterized in that, described base station also includes the boss be positioned at above described pedestal, described diffuser includes the main part in uncovered shape and is shunk the necking end formed by described main part, and described thermal resistance parts are set in outside described boss and described necking end.

5. lighting device as claimed in claim 1, it is characterized in that, be formed with accommodation cavity in described pedestal, the circuit unit for providing electric power to supply for described illuminating module is placed in described accommodation cavity.

6. lighting device as claimed in claim 5, it is characterized in that, described lighting device also comprises lamp holder, and described lamp holder is connected with described pedestal.

7. lighting device as claimed in claim 1, it is characterized in that, be connected with resin piece below described pedestal, be jointly formed with accommodation cavity in described pedestal and described resin piece, the circuit unit for providing electric power to supply for described illuminating module is placed in described accommodation cavity.

8. lighting device as claimed in claim 7, it is characterized in that, described lighting device also comprises lamp holder, and described lamp holder is connected with described resin piece.

9. the lighting device according to any one of claim 1 to 8, is characterized in that, described thermal resistance parts are transparent material.

10. the lighting device according to any one of claim 1 to 8, is characterized in that, described thermal resistance parts are resin heat-retarding ring.