CN212584915U

CN212584915U - Heat radiation structure and lamp

Info

Publication number: CN212584915U
Application number: CN202021426120.5U
Authority: CN
Inventors: 方平
Original assignee: Shenzhen H&T Intelligent Control Co Ltd
Current assignee: Shenzhen H&T Intelligent Control Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-02-23
Anticipated expiration: 2030-07-17

Abstract

The utility model relates to the field of optical technology, a heat radiation structure and lamps and lanterns for lamps and lanterns is provided. The heat dissipation structure comprises a shell and a radiator, wherein the radiator is arranged in the shell and attached to the inner wall of the shell, and the radiator is used for conducting heat inside the lamp to the shell. The heat radiator is characterized in that the inner wall of the shell is provided with a limiting structure, the heat radiator is provided with a clamping structure, the limiting structure is connected with the clamping structure, and the limiting structure is connected with the clamping structure, so that the heat radiator can be fixed on the shell, the assembling process of the heat radiating structure is simple, and the manufacturing cost is reduced. And the shell coats the radiator, so that the radiating area between the radiator and the shell is increased, the structural space of the product is effectively utilized, and the radiating performance can be improved and optimized on the basis of ensuring the existing modeling characteristics of the product.

Description

Heat radiation structure and lamp

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of optical technology, in particular to heat radiation structure and lamps and lanterns.

[ background of the invention ]

In recent years, the development success of high-power LED chips and the improvement of light emitting efficiency thereof have been increased, so that more and more high-power LEDs are beginning to enter the field of illumination, but the electro-optic conversion efficiency of the LED chips is still low at present, and most of energy is still output through heat energy. Along with the rising of temperature, the light-emitting rate of LED chip can be along with the rising of chip junction temperature and constantly reduce, can aggravate the light decay of LED chip simultaneously, and effective life also follows the shortening. When the LED lamp works in a high-temperature environment for a long time, the fluorescent powder can lose efficacy due to high temperature, so that the heat dissipation design of the LED lamp is an important link which is not negligible. In the existing heat dissipation scheme of the illumination LED lamp in the market, a hole is usually added on a lamp panel, so that heat passes through the back of the lamp panel from the front side of the lamp panel, and heat is dissipated by air convection, and the scheme is limited to a low-power product and a product structure which needs air convection; in addition, the heat of the LED plate is conducted to the metal shell through glue filling for heat dissipation, but the glue filling heat conduction scheme increases the cost and also increases the requirement of the glue filling process.

[ Utility model ] content

In order to solve the technical problem, the embodiment of the utility model provides a heat radiation structure and lamps and lanterns makes assembly process simple, and effectively utilizes product structure space, improves the heat-sinking capability.

The embodiment of the utility model provides a solve its technical problem and adopt following technical scheme:

in a first aspect, a heat dissipation structure is provided for a lamp, where the heat dissipation structure includes:

the inner wall of the shell is provided with a limiting structure;

the radiator is arranged in the shell and provided with a clamping structure, the limiting structure is connected with the clamping structure, and the radiator is used for conducting heat inside the lamp to the shell.

Optionally, the limiting structure comprises a limiting block, the heat radiator is provided with a limiting groove, and the limiting block is arranged in the limiting groove.

Optionally, the clamping structure includes a clamping block, the housing is provided with a clamping groove, and the clamping block is disposed in the clamping groove.

Optionally, the limiting structure further comprises a limiting stop ring, and the limiting stop ring is connected with the limiting block;

the limiting blocking ring is provided with a gap between the inner wall of the shell, the clamping groove is communicated with the gap, the clamping block penetrates through the gap and is arranged in the clamping groove, and the clamping block abuts against the limiting blocking ring.

Optionally, the housing and the heat sink are respectively of a cylindrical structure, and the outer wall of the heat sink is attached to the inner wall of the housing.

In a second aspect, a luminaire is provided, which includes:

the heat dissipating structure of any of the above;

the lamp plate, the lamp plate with heat radiation structure connects.

Optionally, the lamp panel is connected to one end of the heat sink.

Optionally, one end of the radiator is provided with a threaded hole, and the lamp panel is locked to the threaded hole through a fastener.

Optionally, the lamp further comprises a circuit board, the circuit board is arranged in the radiator, one end of the circuit board is connected with the shell, and the other end of the circuit board is connected with the lamp panel.

Optionally, a clamping block is arranged on the housing, and the circuit board is clamped on the clamping block.

Compared with the prior art, in the embodiment, the limiting structure is arranged on the shell, the clamping structure is arranged on the radiator, and the limiting structure is connected with the clamping structure to fix the radiator on the shell, so that the assembling process of the radiating structure is simple, the manufacturing cost is reduced, the radiator is arranged in the shell, the structural space of a product is effectively utilized, and the radiating performance can be improved and optimized on the basis of ensuring the existing modeling characteristics of the product.

[ description of the drawings ]

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.

Fig. 1 is a schematic structural diagram of a lamp according to an embodiment of the present invention;

FIG. 2 is an exploded view of the light fixture shown in FIG. 1;

FIG. 3 is a cross-sectional view of the light fixture shown in FIG. 1 with some components omitted;

FIG. 4 is a schematic structural diagram of a housing in the lamp shown in FIG. 1;

FIG. 5 is a cross-sectional view of the housing shown in FIG. 4;

FIG. 6 is a schematic structural diagram of a heat sink in the lamp shown in FIG. 1;

fig. 7 is an assembly view of the housing shown in fig. 4 and the heat sink shown in fig. 6.

[ detailed description ] embodiments

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1 to 3, an embodiment of the present invention provides a lamp 100, a lamp cap 10, a lamp shade 30, a heat dissipation structure, a circuit board 50, a lamp panel 60, and a light guide pillar 70, wherein the heat dissipation structure includes a housing 20 and a heat sink 40. The lamp cap 10 and the lamp housing 30 are respectively connected to both ends of the housing 20. The heat sink 40, the circuit board 50, the lamp panel 60 are respectively arranged in the housing 20, and the light guide column 70 is arranged in the lamp shade 30. The circuit board 50 and the lamp panel 60 are respectively connected to the heat sink 40, and the heat sink 40 is used for transferring heat generated by the lamp panel 60 during operation to the housing 20. Light guide post 70 with lamp plate 60 connects, light guide post 70 is used for the light conduction that sends lamp plate 60 and disperses away.

The lamp holder 10 is used for being connected with an external circuit, the lamp holder 10 comprises a screw 11, a plug 12 and a contact 13, and the plug 12 is connected between the screw 11 and the plug 12. The plug 12 is arranged at one end of the screw 11, the contact 13 is arranged on the plug 12, and the screw 11 and the contact 13 are respectively and electrically connected with an external circuit. The outer surface of the screw port 11 is provided with threads for being connected with an external socket in a matching manner. The other end of the screw 11 is sleeved at one end of the housing 20, and the lampshade 30 is connected to the other end of the housing 20. The housing 20 with the lamp shade 30 encloses and closes and form accommodation space, the radiator 40 the circuit board 50 the lamp plate 60 and the leaded light post 70 all is located in the accommodation space.

The housing 20 is sleeved on the heat sink 40, and the heat sink 40 is disposed outside the circuit board 50. The lamp panel 60 faces one surface of the lamp cap 10 and is connected to the circuit board 50, and the lamp panel 60 is fixed to one end of the heat sink 40 through a fastener. The circuit board 50 is electrically connected to the screw port 11 and the contact 13, respectively, so as to communicate with an external circuit. The lamp panel 60 with the electricity is connected between the circuit board 50, circuit board 50 is the lamp panel 60 power supply. The lamp plate 60 orientation deviates from the one side of lamp holder 10 is equipped with a plurality of LED lamp pearls, a plurality of LED lamp pearls evenly distributed in on the lamp plate 60, a plurality of LED lamp pearls are the light source. Light guide post 70 orientation the one end of radiator 40 with lamp plate 60 is connected, lamp plate 60 orientation light guide post 70 emission light, light guide post 70 be used for with light source on the lamp plate 60 is derived with increase luminous angle towards the other end.

The shell 20 and the radiator 40 are respectively of a cylindrical structure, the overall shape of the radiator 40 is matched with that of the shell 20, the radiator 40 is arranged in the shell 20, and the outer wall of the radiator 40 is attached to the inner wall of the shell 20. The housing 20 and the heat sink 40 are made of metal materials that are easy to dissipate heat, such as aluminum alloy, copper alloy, and the like, so as to ensure heat dissipation performance.

Referring to fig. 4 and 5, the inner wall of the outer shell 20 is provided with a limiting structure, the limiting structure is located at an end of the outer shell 20 facing the lamp cap 10, and the limiting structure is used for being assembled and positioned with the heat sink 40. The limiting structure comprises a limiting block 21, the limiting block 21 protrudes from the inner wall of the shell 20, the number of the limiting blocks 21 is three, and the limiting blocks 21 are distributed annularly. The limiting structure further comprises a limiting stop ring 22, the limiting stop ring 22 is arranged at one end of the lamp holder 10, which is deviated from the limiting block 21, and the limiting stop ring 22 is respectively connected with the limiting block 21. The limit stop ring 22 is not in contact with the inner wall of the shell 20, and a gap is formed between the limit stop ring 22 and the inner wall of the shell 20. Three clamping grooves 23 are formed among the limiting blocks 21, the clamping grooves 23 are formed in one ends, facing the lamp holder 10, of the limiting stop rings 22, and the clamping grooves 23 are communicated with the gaps. It can be understood that, in some other embodiments, the number of the limiting blocks 21 can be increased or decreased according to actual requirements, for example, two or four limiting blocks are provided, only the number of the limiting blocks 21 is at least two, and at least two clamping grooves 23 are formed between at least two limiting blocks 21.

Referring to fig. 6 and 7, a fastening structure is disposed at an end of the heat sink 40 facing the lamp cap 10, and the fastening structure is connected to the limiting structure in a matching manner, so that the heat sink 40 is fixed to the housing 20. The clamping structure includes a clamping block 41, the clamping block 41 extends towards the lamp holder 10, and the clamping block 41 bends towards the inner cavity of the heat sink 40. The number of the fixture blocks 41 is three, the three fixture blocks 41 are distributed in a ring shape, and each fixture block 41 corresponds to one of the clamping grooves 23. Three limiting grooves 42 are formed among the three clamping blocks 41, and each limiting groove 42 corresponds to one limiting block 21. It can be understood that, in some other embodiments, the number of the fixture blocks 41 may be increased or decreased according to actual requirements, for example, two or four fixture blocks are provided, only the number of the fixture blocks 41 is at least two, and at least two of the limiting grooves 42 are formed between at least two fixture blocks 41. The number of the latch 41 is the same as that of the latch slots 23, and each latch 41 corresponds to one latch slot 23; the number of the limiting grooves 42 is the same as that of the limiting blocks 21, and each limiting groove 42 corresponds to one limiting block 21.

When the housing 20 is connected to the heat sink 40, each of the locking blocks 41 passes through the gap and is disposed in a corresponding one of the locking grooves 23, each of the limiting blocks 21 is disposed in a corresponding one of the limiting grooves 42, and the limiting stop ring 22 abuts against each of the locking blocks 41, so that the locking blocks 41 are fixed in the locking grooves 23, and the heat sink 40 is fixed to the housing 20.

Referring to fig. 3 and 4 again, in some embodiments, a threaded hole is further formed in an end of the heat sink 40 away from the lamp cap 10, the lamp panel 60 abuts against the heat sink 40, and the lamp panel 60 is fastened to the threaded hole by a fastener, so that the lamp panel 60 is fixedly connected to the heat sink 40. The heat generated by the lamp panel 60 during operation can be transferred to the housing 20 through the heat sink 40.

In some embodiments, the inner wall of the housing 20 is further provided with a clamping block 24, the clamping block 24 is disposed at an end of the housing 20 facing the lamp head 10, and an end of the circuit board 50 is connected to the clamping block 24, so that the circuit board 50 is fixed to the housing. Circuit board 50 is located in radiator 40, circuit board 50 with radiator 40's inner wall butt, circuit board 50's the other end still lamp plate 60 connects, lamp plate 60 during operation's heat can also pass through circuit board 50 transmits extremely radiator 40 with shell 20 to further increase the radiating effect.

It should be noted that the thickness of the heat sink 40 is proportional to the heat dissipation capability thereof, and the thickness of the heat sink 40 can be increased as much as possible to improve the heat dissipation performance of the heat sink 40 under the condition of satisfying the installation space of the circuit board 50.

Compared with the prior art, in the embodiment, the shell 20 is provided with the limiting structure, the heat sink 40 is provided with the clamping structure, the limiting structure and the clamping structure are connected, so that the heat sink 40 is fixed on the shell 20, the shell 20 and the heat sink 40 are assembled simply and conveniently, and the installation procedures are reduced. Moreover, the shell 20 covers the radiator 40, the radiator 40 is attached to the inner wall of the shell 20, the radiating area between the radiator and the inner wall is increased, the structural space of a product is effectively utilized to increase the material volume of the radiator 40, and the radiating performance can be improved and optimized on the basis of ensuring the existing modeling characteristics of the product.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A heat dissipation structure for a lamp, the heat dissipation structure comprising:

the inner wall of the shell is provided with a limiting structure;

2. The heat dissipation structure of claim 1, wherein the limiting structure comprises a limiting block, the heat sink is provided with a limiting groove, and the limiting block is disposed in the limiting groove.

3. The heat dissipating structure of claim 2, wherein the locking structure comprises a locking block, the housing has a locking groove, and the locking block is disposed in the locking groove.

4. The heat dissipation structure of claim 3, wherein the limiting structure further comprises a limiting stop ring, and the limiting stop ring is connected with the limiting block;

5. The heat dissipating structure of any one of claims 1 to 4, wherein the housing and the heat sink are each a cylindrical structure, and an outer wall of the heat sink is attached to an inner wall of the housing.

6. A light fixture, comprising:

the heat dissipating structure of any of claims 1-5;

the lamp plate, the lamp plate with heat radiation structure connects.

7. A light fixture as recited in claim 6, wherein the light panel is coupled to an end of the heat sink.

8. A lamp as claimed in claim 7, wherein a threaded hole is provided at one end of the heat sink, and the lamp panel is fastened to the threaded hole by a fastener.

9. The lamp according to claim 7, further comprising a circuit board, wherein the circuit board is disposed in the heat sink, one end of the circuit board is connected to the housing, and the other end of the circuit board is connected to the lamp panel.

10. The lamp of claim 9, wherein the housing has a clamping block, and the circuit board is clamped to the clamping block.