CN206514271U - The heat spreader structures of light fixture - Google Patents

Abstract

The utility model provides a kind of heat spreader structures of light fixture, the radiator lies in conductive force wall of the hollow body provided with least one tool lateral surface and medial surface, and in the lateral surface assembling contact light emitting module of the conductive force wall, it is another in being provided with least one radiating tube being connected with the medial surface of the conductive force wall in the body, and provided with the gas channel that two ends are opening inside the radiating tube, when the heat that light emitting module is produced is conducted to radiating tube via the conductive force wall, air themperature in the gas channel for causing the radiating tube is risen and flowed, and produce thermal convection current with the air outside radiating tube, and then taken away conducting to the heat of radiating tube；In this way, increasing thermal convection current effect using the gas channel of intrinsic radiating tube, you can take away rapidly, damaged with preventing light emitting module from overheating, and then reach the Practical Benefit that radiating effect and light emitting module service life is substantially improved by conducting to the heat of radiating tube.

Description

The heat spreader structures of light fixture

Technical field

The utility model is related to a kind of gas channel increase thermal convection current effect using intrinsic radiating tube, you can will pass The heat for being directed at radiating tube takes away rapidly, is damaged with preventing light emitting module from overheating, and radiating effect and luminous mould is substantially improved The heat spreader structures of the light fixture of block service life.

Background technology

Press, now the continuous progress of scientific and technological industry so that the efficiency of electronic building brick is constantly lifted, and in dynamical demand Under, though adding the running speed of electronic building brick, but also the caloric value of electronic building brick is improved, and the operation temperature of electronic building brick Degree is again closely bound up with its reliability, service life etc., therefore, how effectively to lift the heat-sinking capability of electronic building brick into one Critical problem.

Refer to shown in Fig. 1, by taking a LED lamp 10 as an example, it lies in the one side of a circuit board 11 provided with a plurality of LED component 111, for the illumination that emits beam, a radiator 12 is provided with a substrate 121, and the one side of the substrate 121 is attached at this Circuit board 11, another side has then been spaced plural pieces radiating fin 122；When each LED component 111 of circuit board 11 sends light During line, the heat produced by each LED component 111 is conducted to the substrate 121 of radiator 12, then by substrate via circuit board 11 121 conduction are dissipated heat using each radiating fin 122 and the thermal natural convection mode of surrounding air to each radiating fin 122 Go out, to provide radiating effect；However, when each LED component 111 of circuit board 11 emits beam, what each LED component 111 was produced Heat system is conducted to each radiating fin 122 via the substrate 121 of radiator 12, due to each radiating fin 122 of the radiator 12 The spacing distance made between intensive arrangement, and each adjacent heat radiation fin 122 is small, and has in the external position of each radiating fin 122 There are preferably thermal convection current effect, the middle position of the substrate 121 of the radiator 12 and the thermal convection current effect of the root of each radiating fin 122 Fruit is not then obvious, and the heat system for concentrating on the middle position of substrate 121 outwards conducts via each radiating fin 122 and spread, then with The external position of each radiating fin 122 produces thermal convection current with surrounding air, just heat can shed, however, in each LED component 111 power constantly lifting and in the case of producing more heats, the mode of thermal natural convection will be insufficient to allow each LED component 111 are rapidly and effectively radiated, and then influence the efficiency and service life of LED component 111.

It is in the streets to have dealer's research and development to be radiated in the way of forcing thermal convection current to solve above-mentioned scarce disadvantage；Refer to figure 2nd, shown in Fig. 3, the circuit board 21 that the LED lamp 20 lies in tool LED component is provided with radiator 22, and the radiator 22 is provided with plural number Piece radiating fin 221, and air channel 222 is respectively equipped between each adjacent radiating fin 221, separately filled in one end of the radiator 22 If fan 223, and the air-flow flowed through in each air channel 222 of the radiator 22 is produced with the fan 223, and will using air-flow The heat of each radiating fin 221 takes away, and reaches the effect of radiating；However, when airflow passes through each wind of the radiator 22 When in road 222, due to being influenceed by air-flow viscosity, it will make to flow through the air-flow in each air channel 222 of the radiator 22 Speed gradually slows down, and the heat that can not will focus on middle position rapidly and effectively takes away, therefore, the pressure thermal convection current Though radiating mode has preferably radiating effect compared to thermal natural convection mode, still it is not enough to rapidly and effectively be dissipated Heat, and influence the efficiency and service life of each LED component.

The content of the invention

In view of this, the utility model designer satisfies the research and development for being engaged in relevant industries for many years with it and making experience, for Current problem encountered further investigation, the research by long-term endeavour is ground with studying, eventually creates a kind of radiator of light fixture Structure, to be effectively improved the scarce disadvantage of habit formula, this is design aim of the present utility model.

To achieve the above object, the technical solution adopted in the utility model is：

A kind of heat spreader structures of light fixture, it is characterised in that include：

Body：In hollow form, and provided with least one conductive force wall with lateral surface and medial surface, the conductive force wall Lateral surface for assembling contact an at least light emitting module；

An at least radiating tube：It is connected with the medial surface of the conductive force wall of the body, and is internally opening provided with two ends Gas channel.

The heat spreader structures of described light fixture, wherein, the body is made with the material with thermal conductivity.

The heat spreader structures of described light fixture, wherein, the body is a rectangular housing, is provided with the side of the body The conductive force wall, opposite side is provided with roof, and two side walls are connected between the conductive force wall and the roof, and in the conductive force The accommodation space that two ends are in pass through openings shape is formed in wall, the roof and the two sides wall.

The heat spreader structures of described light fixture, wherein, a plurality of radiating tubes are provided with the body.

The heat spreader structures of described light fixture, wherein, the radiating tube is cylindrical.

The heat spreader structures of described light fixture, wherein, the tube wall of the radiating tube is to be connected to the body with integral manner The medial surface of conductive force wall.

The heat spreader structures of described light fixture, wherein, the inner side of the tube wall of the radiating tube and the conductive force wall of the body Chamfered corners of the face junction provided with increase heat-conducting area.

The heat spreader structures of described light fixture, wherein, an at least fan is equiped with the body, makes the air-flow of the radiating tube Air-flow is produced in passage.

The heat spreader structures of described light fixture, wherein, the appearance for the gas channel for connecting the radiating tube is offered on the body Groove, for installing the fan.

The heat spreader structures of described light fixture, wherein, the tank of the body is provided with cover plate, to cover spacing respectively wind Fan.

The utility model has the advantage of there is provided a kind of heat spreader structures of light fixture, the gas of intrinsic radiating tube is utilized Circulation road increases thermal convection current effect, you can taken away conducting to the heat of radiating tube rapidly, and then reaches that radiating, which is substantially improved, imitates The practical purpose of fruit.

Another advantage of the present utility model is, there is provided a kind of heat spreader structures of light fixture, to utilize the body of the radiator It is interior to be provided with least one radiating tube being connected with the medial surface of the conductive force wall, and be opening provided with two ends inside the radiating tube Gas channel, when light emitting module produce heat conducted via the conductive force wall to radiating tube when, i.e., using intrinsic The gas channel increase thermal convection current effect of radiating tube, and can will conduct to the heat of radiating tube and take away rapidly, to prevent luminous mould Block is overheated and damaged, and then reaches the practical purpose that light emitting module service life is substantially improved.

Brief description of the drawings

Fig. 1 is the structural representation of existing LED lamp.

Fig. 2 is the structural representation of existing another LED lamp.

Fig. 3 is Fig. 2 diagrammatic cross-section.

Fig. 4 is the decomposing schematic representation of the utility model first embodiment.

Fig. 5 is the combination schematic appearance of the utility model first embodiment

Fig. 6 is the diagrammatic cross-section of the utility model first embodiment.

Fig. 7 is Fig. 6 A-A diagrammatic cross-sections.

Fig. 8 is the use schematic diagram of the utility model first embodiment.

Fig. 9 is Fig. 8 B-B diagrammatic cross-sections.

Figure 10 is the decomposing schematic representation of the utility model second embodiment.

Figure 11 is the combination schematic appearance of the utility model second embodiment

Figure 12 is the diagrammatic cross-section of the utility model second embodiment.

Figure 13 is Figure 12 C-C diagrammatic cross-sections.

Figure 14 is the use schematic diagram of the utility model second embodiment.

Figure 15 is Figure 14 D-D diagrammatic cross-sections.

Description of reference numerals：[existing part] 10-LED light fixtures；11- circuit boards；111-LED components；12- radiators； 121- substrates；122- radiating fins；20-LED light fixtures；21- circuit boards；22- radiators；221- radiating fins；222- air channels； 223- fans；[the utility model part] 30- radiators；31- bodies；311- conductive force walls；3111- lateral surfaces；In 3112- Sideways；3113- chamfered corners；312- roofs；313- sides wall；314- accommodation spaces；32- radiating tubes；321- gas channels；40- is sent out Optical module；401- circuit substrates；402- luminescence components；41- lampshades；50- radiators；51- bodies；511- conductive force walls； 5111- lateral surfaces；5112- medial surfaces；5113- chamfered corners；512- roofs；513- sides wall；514- accommodation spaces；515- tanks； 52- radiating tubes；521- gas channels；53- fans；54- cover plates；60- light emitting modules；601- circuit substrates；602- luminescence components； 61- lampshades.

Embodiment

To make your juror further understand the utility model, a preferred embodiment and cooperation figure are hereby lifted Formula, is described in detail as after：

Refer to shown in Fig. 4-Fig. 7, the radiator 30 of the utility model first embodiment has thermal conductivity provided with one and is in The body 31 of hollow form, and in conductive force wall of the body 31 provided with least one tool lateral surface and medial surface；In the present embodiment In, the body 31 be with thermally conductive materials (such as aluminium alloy) make, and with aluminium extruded extract out mode mold it is without exception rectangular Housing, and in conductive force wall 311 of the side of the body 31 provided with tool lateral surface 3111 and medial surface 3112, opposite side sets Have roof 312, be then connected with two side walls 313 between the conductive force wall 311 and the roof 312, and the conductive force wall 311, The accommodation space 314 that two ends are in pass through openings shape is formed in the side wall 313 of roof 312 and two；Separately in the accommodation space of the body 31 It is provided with an at least radiating tube in 314, the radiating tube is connected to the medial surface 3112 of the conductive force wall 311 of the body 31, and Inside is provided with the gas channel that two ends are opening；In the present embodiment, provided with a plurality of general in the accommodation space 314 of the body 31 Cylindrical radiating tube 32, the tube wall of each radiating tube 32 is connected to the conductive force wall of the body 31 with integral manner respectively 311 medial surface 3112 and roof 312, and it is respectively equipped with inside each radiating tube 32 gas channel 321 that two ends are opening, Wherein, the junction of the tube wall of each radiating tube 32 and the medial surface 3112 of the conductive force wall 311 is respectively equipped with increase heat conduction The chamfered corners 3113 of area, are conducted to each radiating tube 32 with the heat of sharp conductive force wall 311；The another heat conduction in the body 31 is made With the assembling contact of a lateral surface 3111 at least light emitting module for wall 311, for driving the illumination that emits beam；In the present embodiment, The lateral surface 3111 of the conductive force wall 311 of the body 31 is provided with two light emitting modules 40, and the light emitting module 40 has one to be led with this The circuit substrate 401 of the assembling contact of lateral surface 3111 of heat effect wall 311, and in the circuit substrate 401 provided with a plurality of luminous Component 402, so that driving emits beam illumination, due to the light emitting module 40 each luminescence component 402 driving illumination mode For prior art, and non-emphasis of the present utility model, therefore it will not go into details；Separately in dress on the conductive force wall 311 of the body 31 Provided with lampshade 41, for covering two light emitting modules 40.

Refer to shown in Fig. 8, Fig. 9, when each luminescence component 402 of driving light emitting module 40 emits beam, each hair Heat produced by optical assembly 402 is conducted to the conductive force wall of the body 31 of the radiator 30 via circuit substrate 401 311, then conducted by the conductive force wall 311 to each radiating tube 32, when heat is conducted to each radiating tube 32, each radiating will be caused Air themperature in the gas channel 321 of pipe 32 rises and flowed, and is flowed out above two end openings of each gas channel 321, And hot-air in each gas channel 321 of each radiating tube 32 and outside cold air is produced thermal natural convection, and then can be by Conduct to the heat of each radiating tube 32 and take away, to be radiated；In this way, the radiator 30 of the utility model first embodiment is profit Increase thermal natural convection effect with the gas channel 321 of each radiating tube 32 in body 31, you can by conduction to each radiating tube 32 Heat take away rapidly, it is scattered to prevent from that each luminescence component 402 of each light emitting module 40 from overheating and damages, and then reach to be substantially improved The Practical Benefit of thermal effect and light emitting module service life.

Refer to shown in Figure 10-Figure 13, the radiator 50 of the utility model second embodiment provided with one have thermal conductivity and In the body 51 of hollow form, and in conductive force wall of the body 51 provided with least one tool lateral surface and medial surface；In this implementation Example in, the body 51 be with thermally conductive materials (such as aluminium alloy) make, and with aluminium extruded extract out mode mold without exception be in square The housing of shape, and in conductive force wall 511 of the side of the body 51 provided with tool lateral surface 5111 and medial surface 5112, opposite side Provided with roof 512, two side walls 513 are then connected between the conductive force wall 511 and the roof 512, and in the conductive force wall 511st, the accommodation space 514 that two ends are in pass through openings shape is formed in the side wall 513 of roof 512 and two；Another housing in the body 51 An at least radiating tube is provided with space 514, the radiating tube is connected to the medial surface 5112 of the conductive force wall 511 of the body 51, And internally provided with the gas channel that two ends are opening；In the present embodiment, provided with plural number in the accommodation space 514 of the body 51 Individual general cylindrical radiating tube 52, the heat conduction that the tube wall of each radiating tube 52 is connected to the body 51 with integral manner respectively is made With the medial surface 5112 and roof 512 of wall 511, and it is respectively equipped with inside each radiating tube 52 gas channel that two ends are opening 521, wherein, the junction of the tube wall of each radiating tube 52 and the medial surface 5112 of the conductive force wall 511 is respectively equipped with increase The chamfered corners 5113 of heat-conducting area, are conducted to each radiating tube 52 with the heat of sharp conductive force wall 511；Separately in dress on the body 51 Provided with an at least fan, with generation air-flow in the gas channel 521 of each radiating tube 52 of body 51；In the present embodiment, The tank 515 for the gas channel 521 for being respectively communicated with each radiating tube 52 is offered on the roof 512 of the body 51, for respectively A fan 53 is installed, and cover plate 54 is provided with the tank 515, to cover spacing each fan 53, and with each fan 53 in this Air-flow is produced in the gas channel 521 of each radiating tube 52；The another lateral surface 5111 in the conductive force wall 511 of the body 51 is assembled An at least light emitting module is contacted, for driving the illumination that emits beam；In the present embodiment, the conductive force wall 511 of the body 51 Lateral surface 5111 be provided with two light emitting modules 60, the light emitting module 60 has a circuit substrate 601, and in the circuit substrate 601 Provided with a plurality of luminescence components 602, so that driving emits beam illumination, due to each luminescence component 602 of the light emitting module 60 It is prior art, and non-emphasis of the present utility model to drive illumination mode, therefore it will not go into details；Separately in the heat conduction of the body 51 Act on wall 511 and be provided with lampshade 61, for covering two light emitting modules 60.

Refer to shown in Figure 14, Figure 15, when each luminescence component 602 of driving light emitting module 60 emits beam, this is each Heat produced by luminescence component 602 is conducted to the conductive force wall of the body 51 of the radiator 50 via circuit substrate 601 511, then conducted by the conductive force wall 511 to each radiating tube 52, when heat is conducted to each radiating tube 52, each radiating will be caused Air themperature in the gas channel 521 of pipe 52 rises and flowed, separately with each fan 53 in the gas channel of each radiating tube 52 Air-flow is produced in 521, the hot-air in the gas channel 521 of each radiating tube 52 is discharged with the air-flow of fan 53, and is made each Hot-air in each gas channel 521 of radiating tube 52 is produced with outside cold air forces thermal convection current, and then will can conduct extremely The heat of each radiating tube 52 takes away, to be radiated；In this way, the radiator 50 of the utility model second embodiment is to utilize body The increase thermal convection current effect of gas channel 521 of each radiating tube 52 in 51, you can the heat of conduction to each radiating tube 52 is rapid Take away, to prevent that each luminescence component 602 of each light emitting module 60 from overheating and damages, and then reach that radiating effect and hair is substantially improved The Practical Benefit of optical module service life.

Accordingly, actually a depth has practicality and the design of progressive to the utility model, so there are no identical product and periodical Thing is disclosed, so as to permit symbol new patent application important document, whence is filed an application in accordance with the law.

Claims (10)

1. a kind of heat spreader structures of light fixture, it is characterised in that include：

Body：In hollow form, and it is provided with outside at least one conductive force wall with lateral surface and medial surface, the conductive force wall Side is for an assembling contact at least light emitting module；

An at least radiating tube：It is connected with the medial surface of the conductive force wall of the body, and internally provided with the gas that two ends are opening Circulation road.

2. the heat spreader structures of light fixture according to claim 1, it is characterised in that the body is with the material with thermal conductivity Material is made.

3. the heat spreader structures of light fixture according to claim 1, it is characterised in that the body is a rectangular housing, The conductive force wall is provided with the side of the body, opposite side is provided with roof, two are connected between the conductive force wall and the roof Side wall, and form in the conductive force wall, the roof and the two sides wall accommodation space that two ends are in pass through openings shape.

4. the heat spreader structures of light fixture according to claim 1, it is characterised in that a plurality of radiatings are provided with the body Pipe.

5. the heat spreader structures of light fixture according to claim 1, it is characterised in that the radiating tube is cylindrical.

6. the heat spreader structures of light fixture according to claim 1, it is characterised in that the tube wall of the radiating tube is with integral side Formula is connected to the medial surface of the conductive force wall of the body.

7. the heat spreader structures of light fixture according to claim 1, it is characterised in that the tube wall of the radiating tube and the body Chamfered corners of the medial surface junction of conductive force wall provided with increase heat-conducting area.

8. the heat spreader structures of light fixture according to claim 1, it is characterised in that an at least wind is equiped with the body Fan, makes to produce air-flow in the gas channel of the radiating tube.

9. the heat spreader structures of light fixture according to claim 8, it is characterised in that offered on the body and connect the radiating The tank of the gas channel of pipe, for installing the fan.

10. the heat spreader structures of light fixture according to claim 9, it is characterised in that the tank of the body is provided with cover plate, To cover spacing respectively fan.