CN1844733B

CN1844733B - Column lighting device with a heat dissipation device

Info

Publication number: CN1844733B
Application number: CN200610073314XA
Authority: CN
Inventors: G·古齐尼
Original assignee: YIGUQINY LIGHTING CO Ltd
Current assignee: YIGUQINY LIGHTING CO Ltd; Iguzzini Illuminazione SpA
Priority date: 2005-04-08
Filing date: 2006-04-07
Publication date: 2010-10-06
Anticipated expiration: 2026-04-07
Also published as: DE602006001420D1; PL1710497T3; ATE398265T1; DK1710497T3; SI1710497T1; PT1710497E; NO20061492L; ES2308656T3; EP1710497B1; CN1844733A; EP1710497A2; EP1710497A3; ITMI20050596A1

Abstract

Column lighting device (1) consisting of a supporting structure or column (2), in the upper part of which there is a light source (4), situated in a housing (3) laterally surrounded by a light passage shield (6) and above by a reflector (9) and a cover (5), comprising a heat dissipator (12), in direct contact with the reflector (9).

Description

Column lighting device with heat dissipation equipment

Technical field

The present invention relates to a kind of column lighting device, it has special solution, is dissipated with the heat of permission by light source portion's generation within it.

Particularly,, be provided with and effectively heat be dispersed into outside parts, prevent the excessive rising of internal and external temperature according to the column lighting device that the invention provides a kind of guard post type (bollard).

Background technology

The column lighting device of known type is also referred to as the guard post type, according to the position of light source and inevitably heat can be divided into two groups: light source is positioned at the column lighting device on cylinder top and the column lighting device that light source is positioned at the cylinder bottom.

In first group device, depend on to a great extent to outside heat dissipation capability and the size of block piece promptly, to depend on the size of block piece side surface portion, block piece is positioned at the height place of height place the same with the light source height or close light source height, and this block piece allows light to pass through towards the outside.Size according to block piece, these lighting devices are further divided into two groupings: first grouping, wherein block piece has less size and therefore has littler external heat-sinking capability, second grouping, and wherein block piece has enough big size and therefore has bigger external heat-sinking capability.

In the device that belongs to first grouping, preferably, because the size of block piece is less, they allow to obtain better euphorosia, therefore be necessary to use the glass block piece, it can bear the high temperature that is reached, but this block piece does not have characteristic that can not be broken and therefore damages especially easily.In some cases, the form of the utilizable protective position of glass block piece by giving lighting device is attempted to solve this problem, but has been reduced the illumination capability of this device fallaciously.

In the lighting device that belongs to second grouping, on the other hand, because bigger external heat-sinking capability and the lower temperature that reaches, can make a kind of block piece of making by thermoplastic, it is not easy fragmentation, but owing to dazzle the eyes phenomenon may bring injury to euphorosia, that is, the direct light that penetrates from light source arrives observer's eyes.

For second group lighting device, that is, wherein light source is positioned at the column lighting device of cylinder bottom, and externally what difficulty heat radiation does not have substantially.In such lighting device, in fact, because block piece under any circumstance all is positioned at cylinder top, the light that penetrates from light source must pass the space that always extends to reflecting element, this reflecting element near block piece and with light to external reflectance.Because the distance between light source and the block piece is farther, and hold light source and allow to arrive from the light of light emitted the volume in space of reflecting element very big, the temperature that is reached in device is lower than the high temperature that device reached that light source is positioned at cylinder top.Particularly, block piece reaches lower temperature.Therefore such lighting device allows the less block piece of manufacturing dimension, with the needs that satisfy euphorosia and allow block piece to adopt thermoplastic simultaneously, obtains chip-proof characteristic.Yet because light does not have the albedo towards the best of outside, the low light that is limited in of these devices is exported.

Summary of the invention

Therefore, a main purpose of the present invention provides a kind of column lighting device, it can be combined euphorosia (block piece by reduced size satisfies euphorosia) and those securities and mechanical resistance performance demands, maintain the temperature at and allow to use thermoplastic and not in the limit of crushing material, export and damage light.

Another object of the present invention provides a kind of easy and economic column lighting device of making and safeguard.

According to the present invention, a kind of column lighting device is provided, comprise supporting construction or pillar, light source is arranged at the top at this lighting device, and this light source is located in the shell of side by the optical channel shield encompasses, and light source is made up of emitting bulb, there is reflecting element the top of emitting bulb, it is characterized in that this lighting device comprises lid and the radiating piece that directly contacts with reflecting element, wherein the described radiating piece of at least a portion directly contacts with described lid.

Preferably, make the most surfaces of described radiating piece downside and the back side one of described reflecting element show the back side that bonds to described reflecting element.

Preferably, the upside at described radiating piece has a series of rib.

Preferably, described reflecting element has perforation, and described radiating piece is defined for the recess of the part that is positioned at the emitting bulb top of the pipe that holds described light source to boring a hole.

Preferably, this lighting device also is included in the connection support member between described radiating piece and the described lid.

Preferably, the downside at described lid has a series of ribs.

According to the feature and advantage of column lighting device of the present invention from following with reference to becoming the description of the drawings and the non-limiting description obviously, wherein:

Description of drawings

Fig. 1 is illustrated among first embodiment, according to the cutaway view on the top of column lighting device of the present invention;

Fig. 2 represents in a second embodiment, according to the detailed partial sectional view on the top of column lighting device of the present invention; With

Fig. 3 is illustrated among the 3rd embodiment, according to the detailed partial sectional view on the top of column lighting device of the present invention.

The specific embodiment

With reference to Fig. 1, support according to the wall 2 of the top 1 supported post of column lighting device of the present invention, and comprise the shell 3 that holds light source 4, shell tegmentum 5 again covers.The side surface portion of the shell 3 that permission light passes through, promptly, be included in support column wall 2 top edge and cover part between 5 the lower limb, represent the optical channel part of lighting device, and form by guard shield 6, this block piece is made by light transparent material, preferably by thermoplasticity and not crushing material make such as Merlon.

Light source 4 is made up of emitting bulb 7, and bulb 7 is surrounded by glass tube 8.Emitting bulb 7 is positioned at the height place higher than the height of guard shield 6.And then there is the reflecting element 9 with bending sections the top of emitting bulb 7, this bending sections have towards under concavity.

As shown in Figure 1, reflecting element 9 is perforated at the center, to allow that this reflecting element is placed on the position that is higher than emitting bulb 7 a little, that is, manages 8 top being received by reflecting element 9 and lid 5 space content that limit.

Around light source 4 have columniform preferred by glass, be chosen as the transparent sheath 10 that coloured glass is made, its complete ambient light source 4 and center shell 3 zones that will hold light source 4 physically separate with other neighboring areas of same shell 3.Cover 10 function is to prevent that the air in the shell 3 is excessively overheated, and hot-air is to rising and the single opening of centre bore by corresponding reflecting element 9 is overflowed.

Around light source 4, a light absorption block piece 11 is also arranged, its top edge is positioned at a shade below the position of emitting bulb 7, and is positioned at least the identical position of lower limb height with lid 5.Cooperate with the edge of lid 5, the function of block piece 11 is to prevent that light from penetrating from lighting device 1 with the direction that is parallel to ground.

On reflecting element 9, and what directly contact with this reflecting element is radiating piece 12, the form of the corresponding to a great extent reflecting element 9 of the form of this radiating piece, so that with the maximization of the contact surface of reflecting element, this radiating piece defines corresponding to the perforation of reflecting element 9 at core and is used to hold the cylindrical shape recess 13 of part that light source 4 passes the hole of reflecting element, and the peripheral part of radiating piece have be used to connect support member 15 and with lid 5 tabs that contact 14.Upside at radiating piece 12 has a series of rib 16, and the function of this rib is to increase radiating surface and allow more effectively upwards heat radiation.The part of radiating piece 12 directly contacts with the lid 5 of lighting device.

Radiating piece 12 absorbs heat in its bottom and passes through its top release.Particularly, particularly in the part that limits the recess 13 on the top that holds light source 4 corresponding to radiating piece, make radiating piece 12 by the direct radiation on light source 4 parts with on not half, heat, and the conduction of the part that contacts with reflecting element 9 by radiating piece is heated by cross-ventilation.Radiating piece 12 is by the radiation and the convection current release heat of its upper surface, and its upper surface is maximized owing to having rib 16, and by radiating piece and the lid 5 part heat loss through conduction that contact.

Support member 15 is connected (guard shield is fixed to again on the cylinder of lighting device) with guard shield 6, and is connected with lid 5 with the remainder of lighting device and with radiating piece 12.

Particularly, the connection between lid 5 and the support member 15 is to realize that by a series of conical tooths 17 of containment cap 5 conical tooth 17 is corresponding to the conical seat 18 of support member 15.By single headless screw 19 can guarantee to cover 5 and support member 15 between fixing.

Correctly linked to each other with support member 15 in case cover 5, the tab 14 of radiating piece 12 and the contact of covering between 5 also are guaranteed.

In a preferred embodiment, as shown in the figure, can have any type of lid 5 and also be provided with and be arranged in a series of ribs 23 that contact with tab 14 on the peripheral part in the inboard.

All be positioned at this device main body inside according to the attaching parts between each element of the column lighting device of embodiment shown in Figure 1, and except headless screw, can't see from the outside.The outer surface of this device is very clean from the viewpoint of aesthetics.

With reference to Fig. 2 and Fig. 3, these figure represent guard shield 6, support member 15, radiating piece 12 and cover the various optional embodiment of the connection between 5, shown in all the other aspects of lighting device identical with shown in Fig. 1.

Particularly, in the embodiment shown in Figure 2, and the linkage function of lid between 5 on, radiating piece 12 has replaced support member 15, because radiating piece is provided with the conical seat 20 that is used to cover 5 conical tooth 17, and its other peripheral part 21 is visible from the outside, and it has covered the part of guard shield 6.

On the other hand, in embodiment as shown in Figure 3, making support member 15 be fit to all the other peripheral parts 22 is visible from the outside and coating member guard shield 6.

In each embodiment, the lid 5 and be in the below support member 15 (promptly, radiating piece 12 in embodiment illustrated in fig. 2) connection between is not by one but guarantees by a plurality of headless screws that cover that are screwed to, insert the position that these screw correspondences is positioned at the conical seat that is had on the support member 15 (perhaps radiating piece 12) of below, and these embodiment obviously will be understood that and are equal to fully by the illustrated embodiment of accompanying drawing.

By other connection means, with screw or by insert, the lid 5 of lighting device also can be fixed to below element on.

Make on whole top according to column lighting device of the present invention, particularly on lid 5 whole surface, obtain best and also uniformly heat distribute, thereby avoid specific part overheated on surface.

In addition, formed realization and safeguarded simple and economical solution according to column lighting device of the present invention.

According to one of the preferred embodiments of the present invention; for illustrative and non-limiting purpose the present invention has been described; but obviously can use various variations and/or improvement for a person skilled in the art, all these is included in by in the additional protection domain that claim limited.

Especially, the form of lighting device of the present invention and material can be different from those for pure represented form and the material of illustrative purpose.

Claims

1. a column lighting device (1), comprise supporting construction or pillar (2), light source (4) is arranged on the top of this lighting device, this light source is located in the shell (3) of side by optical channel guard shield (6) encirclement, light source (4) is made up of emitting bulb (7), there is reflecting element (9) top of emitting bulb (7), it is characterized in that, this lighting device comprises lid (5) and the radiating piece (12) that directly contacts with reflecting element (9), and wherein the described radiating piece of at least a portion (12) directly contacts with described lid (5).

2. lighting device as claimed in claim 1 (1) is characterized in that, makes the most surfaces of described radiating piece (12) downside and the back side one of described reflecting element (9) show the back side that bonds to described reflecting element.

3. lighting device as claimed in claim 1 (1) is characterized in that, has a series of rib (16) at the upside of described radiating piece (12).

4. lighting device as claimed in claim 2 (1) is characterized in that, has a series of rib (16) at the upside of described radiating piece (12).

5. as the described lighting device of one of claim 1-4 (1), it is characterized in that, described reflecting element (9) has perforation, and described radiating piece (12) is defined for the recess (13) of the part that is positioned at emitting bulb (7) top of the pipe (8) that holds described light source (4) to boring a hole.

6. as the described lighting device of one of claim 1-4 (1), it is characterized in that this lighting device also is included in the connection support member (15) between described radiating piece (12) and the described lid (5).

7. as the described lighting device of one of claim 1-4 (1), it is characterized in that a series of ribs (23) being arranged at the downside of described lid (5).

8. lighting device as claimed in claim 5 (1) is characterized in that, this lighting device also is included in the connection support member (15) between described radiating piece (12) and the described lid (5).

9. lighting device as claimed in claim 5 (1) is characterized in that, at the downside of described lid (5) a series of ribs (23) is arranged.

10. lighting device as claimed in claim 6 (1) is characterized in that, at the downside of described lid (5) a series of ribs (23) is arranged.