CN215372325U

CN215372325U - High-efficient heat dissipation lamp house and lamp of area upper cover

Info

Publication number: CN215372325U
Application number: CN202121674764.0U
Authority: CN
Inventors: 王影; 聂素芝; 王威威
Original assignee: Shenzhen Xindianjin Photoelectric Technology Co ltd
Current assignee: Shenzhen Xindianjin Photoelectric Technology Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-31
Anticipated expiration: 2031-07-22

Abstract

The utility model belongs to the technical field of lighting lamps, solves the technical problem that the existing lamp is poor in heat dissipation effect, and provides a high-efficiency heat dissipation lamp box with an upper cover and a lamp. Wherein the lamp house includes: this lamp house includes: the lamp box body is in a cavity shape with an opening, a plurality of radiating fins are arranged on the outer side of the bottom shell, and the radiating fins are arranged in a protruding mode towards the outer portion of the bottom shell body; the upper cover is buckled at the opening and forms a cavity capable of accommodating the light source with the bottom shell; the negative pressure mechanism is arranged on the bottom shell; the bottom shell body is provided with a through hole; the air enters the bottom shell from the through hole and is discharged to the outside of the bottom shell through the negative pressure mechanism. According to the utility model, the negative pressure mechanism is arranged to realize the exchange of air inside the bottom shell and external air, and the negative pressure mechanism accelerates the air circulation inside the bottom shell, so that the heat inside the bottom shell is taken out to the outside of the bottom shell, and the efficient heat dissipation of the inside of the bottom shell and the whole lamp box is realized; has the advantage of high-efficient heat dissipation.

Description

High-efficient heat dissipation lamp house and lamp of area upper cover

Technical Field

The utility model relates to the technical field of vehicle lighting lamps, in particular to a high-efficiency heat-dissipation lamp box with an upper cover and a lamp.

Background

At present, the LED lamp has the advantages of high light efficiency, low power consumption, no radiation, long service life and the like, so that the frequency of the LED lamp in daily use is higher and higher.

The existing LED lamp includes: lamp box and light source. The existing LED lamp is generally a lamp box that requires an upper cover and a lens to cooperate with each other to form a chamber for accommodating a light source, and the light source is accommodated in the chamber. In the case of high-power lighting, the light source generates a large amount of heat due to light radiation, and in order to facilitate rapid dissipation of the heat generated by the light source, a heat sink is generally disposed on an outer sidewall of the lamp box to dissipate the heat inside the lamp box. However, the heat dissipation effect is generally limited by the number of the heat dissipation fins and the heat dissipation capacity of the heat dissipation fins, in a lamp needing long-term illumination, a light source emits light and radiates for a long time to generate a large amount of heat, and the limited heat dissipation fins are arranged to cause the heat dissipation effect to be limited; and then lead to a large amount of heat in the lamp house and can't dispel, have the potential safety hazard. Therefore, the existing lamp box has the technical problem of poor heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

In view of this, embodiments of the present invention provide an efficient heat dissipation lamp box with an upper cover and a lamp, so as to solve the technical problem that the existing lamp box has a poor heat dissipation effect.

In a first aspect, an embodiment of the present invention provides an efficient heat dissipation light box with an upper cover, where the light box includes: the lamp box body is in a cavity shape with an opening, a plurality of radiating fins are arranged on the outer side of the bottom shell, and the radiating fins are arranged in a protruding mode towards the outer portion of the bottom shell body; the upper cover is buckled at the opening and forms a cavity capable of accommodating the light source with the bottom shell; the negative pressure mechanism is arranged on the bottom shell; the bottom shell body is provided with a through hole; and air enters the bottom shell from the through hole and is discharged to the outside of the bottom shell through the negative pressure mechanism.

Further, the bottom case includes a side portion and a bottom portion; the side portion encloses the opening, and the bottom portion is connected with the side portion and opposite to the opening.

Further, the plurality of radiating fins are arranged on the side portion.

Further, the through hole is formed in the side portion and communicates with the outside of the bottom case and the inner side wall of the bottom case.

Furthermore, the wind direction of the through hole and the direction of the air inlet of the negative pressure mechanism form an included angle, and the wind direction of the through hole faces towards the light source in an inclined mode.

Further, the inner diameter of the through hole is one end with a large end and the other end with a small end, and the smaller inner diameter is positioned in the bottom shell.

Further, the inner wall of the through hole is wavy.

Further, the outer side wall of the radiating fin is wavy.

Furthermore, the bottom shell is provided with an installation part for installing a light source corresponding to the opening, and the light source is installed behind the installation part and forms a sealed cavity with the upper cover.

Another aspect of the embodiments of the present invention provides a lamp including the efficient heat dissipation lamp box with the upper cover as described above.

In conclusion, the beneficial effects of the utility model are as follows:

on one hand, the lamp box provided by the embodiment of the utility model is provided with the radiating fins which radiate heat to a certain extent. Further, due to the arrangement of the negative pressure mechanism, the negative pressure mechanism works to pump air outside the bottom shell to the inside of the bottom shell and then to the outside of the bottom shell; the inside air of drain pan and outside air exchange have been realized, and have set up negative pressure mechanism and have accelerated the inside circulation of air of drain pan, and then take out the inside heat of drain pan to the drain pan outside, and then realized carrying out high-efficient heat dissipation to the inside and whole lamp house of drain pan.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without any creative effort, other drawings may be obtained according to the drawings, and these drawings are all within the protection scope of the present invention.

FIG. 1 is an assembled sectional view of a light box according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a bottom case according to an embodiment of the utility model.

Parts and numbering in the drawings:

1. a bottom case; 11. a side portion; 12. a bottom; 13. a heat sink; 14. a through hole; 15. an installation part; 2. an upper cover; 3. a light source; 4. a heat conductive member; 5. and a negative pressure mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, the embodiments and features of the embodiments of the present application may be combined with each other and are within the scope of the present application.

The present invention will be described in further detail with reference to fig. 1 and 2.

Example one

The utility model provides a high-efficiency heat-dissipation lamp box with an upper cover, which is applied to LED lamps and is mainly used for the LED lamps in dark places such as tunnels and the like and in places needing long-term power supply and light emission; as shown in fig. 1, the lamp box includes: the lamp box comprises a bottom shell 1, a lamp box body is in a cavity shape with an opening, a plurality of radiating fins 13 are arranged on the outer side of the bottom shell 1, and the radiating fins 13 are arranged in a protruding mode towards the outer portion of the bottom shell 1 body; the upper cover 2 is buckled at the opening and forms a cavity capable of accommodating the light source 3 with the bottom shell 1; the negative pressure mechanism 5 is arranged on the bottom shell 1; the body of the bottom shell 1 is provided with a through hole 14; air enters the bottom shell 1 from the through hole 14 and is discharged to the outside of the bottom shell 1 through the negative pressure mechanism 5.

In the present embodiment, the upper cover 2 is made of a transparent material having light transmittance, and the bottom case 1 is made of a die-cast aluminum material. The opening of the bottom shell 1 is of an annular structure, an installation part 15 used for installing the light source 3 is arranged at the position, corresponding to the opening, of the bottom shell 1, and the light source 3 is installed on the installation part 15 and then forms a sealed cavity with the upper cover 2. The negative pressure generated by the negative pressure mechanism 5 directly acts on the through hole 14, so that larger pressure can be generated, and the air circulation speed is high.

The light source 3 includes a PCB board and a light emitting device, the PCB board is placed on the mounting portion 15 and fixed by screws or the like; the light emitting part is a bulb, etc. and is electrically connected with the PCB board. The heat conducting piece 4 is arranged on one surface, far away from the light source 3, of the mounting part 15, the heat conducting piece 4 is preferably made of aluminum, the heat conducting piece 4 is attached to the PCB, the heat conducting piece 4 and the PCB are arranged in an insulating mode, specifically, an insulating layer can be arranged on the PCB and attached to the heat conducting piece, and the heat conducting piece conducts heat to electronic components and the PCB which generate heat on the PCB; the through-hole 14 is provided directly corresponding to the heat-conductive member.

In this embodiment, on one hand, the lamp box is provided with the heat dissipation fins 13, and the heat dissipation fins 13 dissipate heat in the lamp box. Further, due to the arrangement of the negative pressure mechanism 5, after the negative pressure mechanism 5 works to pump air outside the bottom shell 1 into the bottom shell 1, the air is pumped out of the bottom shell 1; realized 1 inside air of drain pan and outside air exchange, and set up negative pressure mechanism 5 and accelerated the inside circulation of air of drain pan 1, and then take out the inside heat of drain pan 1 to the drain pan 1 outside, and then realized carrying out high-efficient heat dissipation to the inside and whole lamp house of drain pan 1. The technical problem of poor heat dissipation effect in the prior art is solved; the heat dissipation device has the advantages of high-efficiency heat dissipation and quick heat dissipation.

Preferably, a temperature detection switch is arranged inside the bottom shell 1, and a temperature probe of the temperature detection switch is connected with the surface of the heat conducting member 4; specifically, a plurality of temperature probes may be provided to detect the temperatures of a plurality of points on the surface of the heat conductive member 4, and the average of the plurality of temperature points may be determined as the temperature of the heat conductive member. Of course, the temperature near the light emission or the maximum temperature may be regarded as the temperature of the heat conductive member 4.

The temperature detection switch controls the opening and closing of the negative pressure mechanism 5 by detecting the temperature of the heat conductive member 4. The temperature detection switch detects the temperature of the heat conducting piece 4, when the temperature detection switch detects that the temperature of the heat conducting piece 4 is higher than 40 degrees, the negative pressure mechanism 5 is started to accelerate the air circulation in the lamp box, so that the temperature is reduced, and when the temperature is lower than 30 degrees, the negative pressure mechanism 5 is closed; only when the temperature is higher than certain temperature after, just start negative pressure mechanism 5 and carry out rapid cooling, if cooled down to certain temperature, then close negative pressure mechanism 5, only just cool down at higher temperature, realize energy-conservation. Therefore, when the ambient temperature is lower, the heat that the LED lamp source produced can be by radiating piece 13 when to the environment heat dissipation completely, need not start negative pressure mechanism 5 and dispel the heat, so set up, environmental protection and energy saving can be according to ambient temperature's difference, and then whether the selection needs to open negative pressure mechanism 5 and dispel the heat.

Preferably, with reference to fig. 1 and 2, bottom shell 1 comprises a side portion 11 and a bottom portion 12; the side portion 11 encloses an opening and the bottom portion 12 is connected to the side portion 11 opposite the opening.

In this embodiment, the side portion 11 encloses to form a four-sided frame, and one end of the frame close to the bottom portion 12 is smaller than the opening end, i.e. a trapezoid structure with one larger end and one smaller end; a plurality of fins 13 are provided, and a plurality of fins 13 are provided on the side portion 11. The bottom 12 is provided with a negative pressure mechanism 5, the negative pressure mechanism 5 can be a fan, and the air outlet direction of the fan faces to the outside of the lamp box. Because the fan area is great, thickness is less, installs 12 the relatively simple to operate in the bottom, and need not set up too big lateral part 11 and install negative pressure mechanism 5. The fins 13 are arranged to extend in the cross-sectional direction on the side 11 to dissipate heat, which makes the overall light box more compact.

Preferably, as shown in fig. 1, through holes 14 are provided on the side portions 11 to communicate the outside of the bottom case 1 with the inside of the bottom case 1.

In the present invention, the through-holes 14 are provided on the side portions 11, and the specific through-holes 14 are provided on the interval between the heat dissipation fins 13 and the heat dissipation fins 13; air enters the interior of the bottom shell 1 from the side parts 11, is pumped out from the bottom part 12 by the negative pressure mechanism 5 after circulating heat exchange is carried out on the bottom part 12 of the bottom shell 1, and forms a loop in the bottom shell 1, so that the heat exchange is accelerated. In other embodiments, the through hole 14 is provided on the heat sink 13 to communicate one end of the heat sink 13 with the inside of the bottom case 1.

In the present embodiment, the bottom 12 is set to be small, i.e. set to be tapered, and each side 11 is provided with a through hole, the air from the through hole 14 closest to the heat conducting member 4 directly acts on the heat conducting member 4, and the farther the through hole 14 acts on the heat conducting member, the less the air, at this time, the angle between the side 11 and the heat conducting member can be set to a range, preferably within 30 °, so that the air from all the through holes 14 can act on the heat conducting member 4 to a large extent. In addition, the surface of each side portion 11 is provided with a through hole, and air enters the interior of the lamp box from each surface and directly acts on the heat conducting member 4, so that the heat conducting member can be effectively cooled and radiated in a large area; the air is mixed in the lamp box and then is pumped out by the negative pressure mechanism.

In other embodiments, in order to facilitate air circulation, the negative pressure mechanism 5 may be disposed on one side portion, and the through hole 14 may be disposed on the side portion opposite to the negative pressure mechanism 5; thereby enabling the air to act on the heat conducting piece 4 comprehensively and quickening the cooling speed.

Preferably, as shown in fig. 1, the direction of the arrow in fig. 1 indicates the direction of air circulation, the wind direction of the through hole 14 is arranged at an angle with the direction of the air inlet of the negative pressure mechanism 5, and the wind direction of the through hole 14 is inclined toward the light source 3.

In the present embodiment, the side portion 11 may have a trapezoidal structure, or the axial direction of the through hole 14 may be inclined with respect to the side portion 11. The negative pressure mechanism 5 of bottom 12 produces the negative pressure, acts on in through-hole 14, and through-hole 14 receives the effect of negative pressure, and the air gets into from through-hole 14, and the wind direction of through-hole 14 sets up towards light source 3 slope, consequently directly acts on light source 3, makes the cold air that gets into from through-hole 14 directly act on light source 3, and further quick realization heat dissipation cooling.

Preferably, as shown in fig. 1, the inner diameter of the through hole 14 is larger at one end and smaller at the other end, and the smaller inner diameter is located at the inner sidewall of the bottom case 1.

In the embodiment, namely, the air inlet end of the through hole 14 is larger, the air outlet end is smaller, and air enters the air outlet end from the air inlet end, at this time, due to the slit principle, the air pressure entering the inside of the lamp box is increased, so that the speed of the air flow entering the inside of the lamp box is higher, and the air flow entering the inside of the bottom case 1 can rapidly act on the light source 3 before being pumped out of the bottom case 1 by the negative pressure machine; further, the airflow acting on the light source 3 is increased, the heat dissipation efficiency is further improved, and the heat dissipation effect is enhanced. When not opening negative pressure mechanism 5, and the great thing of the outside wind speed of lamp house, the air still can follow through-hole 14 and get into inside the lamp house, because the end internal diameter of giving vent to anger of through-hole 14 is less this moment, the air has been increased pressure in through-hole department, and then the circulation speed of the air that gets into in the lamp house is great, consequently need not open negative pressure mechanism 5 homoenergetic and can be to realizing high-efficient heat dissipation. By the arrangement, the effects of energy conservation and environmental protection are further improved.

Preferably, the inner wall of the through hole 14 is wave-shaped (not shown in the figure); the outer side wall of the heat sink 13 exhibits a wave shape (see fig. 1).

In this embodiment, the inner wall of the through hole 14 is wavy (not shown in the figure), and the outer side wall of the heat sink 13 is wavy, so that the surface area of the inner wall of the through hole 14 and the surface area of the outer wall of the heat sink 13 are increased, when the negative pressure mechanism 5 does not work, the inner wall of the through hole 14 plays a role in heat dissipation, at this time, the inner wall of the wavy through hole 14 and the outer wall of the heat sink 13 play a role in heat dissipation, and at this time, the inner wall of the wavy through hole 14 and the outer wall of the heat sink 13 further increase the heat dissipation area of heat dissipation; further improving the heat dissipation efficiency and the heat dissipation effect.

Example two

The second embodiment of the utility model provides a lamp, which comprises the high-efficiency heat-dissipation lamp box with the upper cover.

The lamp in the embodiment is an LED lamp, and comprises the light source 3 in addition to the light box; the light source 3 adopts LED light beads to emit light; four diffusion parts are further arranged in the cavity of the bottom shell 11 to play a role of diffusing light. The upper cover 2 can be partially transparent or completely transparent and is made of transparent plastic materials; the upper cover 2 can be made of translucent mist material for softening light. The light emitted by the LED lamp light has the effect of soft light.

Due to the adoption of the lamp box, on one hand, the radiating fins 13 are arranged in the lamp box, and the radiating fins 13 perform certain heat dissipation. Further, due to the arrangement of the negative pressure mechanism 5, after the negative pressure mechanism 5 works to pump air outside the bottom shell 1 into the bottom shell 1, the air is pumped out of the bottom shell 1; realized 1 inside air of drain pan and outside air exchange, and set up negative pressure mechanism 5 and accelerated the inside circulation of air of drain pan 1, and then take out the inside heat of drain pan 1 to the drain pan 1 outside, and then realized carrying out high-efficient heat dissipation to the inside and whole lamp house of drain pan 1.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a take high-efficient heat dissipation lamp house of upper cover which characterized in that, the lamp house includes:

the lamp box body is in a cavity shape with an opening, a plurality of radiating fins are arranged on the outer side of the bottom shell, and the radiating fins are arranged in a protruding mode towards the outer portion of the bottom shell body;

the upper cover is buckled at the opening and forms a cavity capable of accommodating the light source with the bottom shell;

the negative pressure mechanism is arranged on the bottom shell;

the bottom shell body is provided with a through hole;

and air enters the bottom shell from the through hole and is discharged to the outside of the bottom shell through the negative pressure mechanism.

2. The efficient heat dissipating light box with upper cover of claim 1, wherein the bottom case comprises a side portion and a bottom portion; the side portion encloses the opening, and the bottom portion is connected with the side portion and opposite to the opening.

3. The efficient heat dissipating light box with upper cover as claimed in claim 2, wherein the heat dissipating fins are provided in plurality, and a plurality of the heat dissipating fins are provided on the side portion.

4. The efficient heat dissipation lamp box with the upper cover as claimed in claim 3, wherein the through holes are provided on the side portions to communicate the outside of the bottom case and the inside of the bottom case.

5. The efficient heat dissipation lamp box with the upper cover according to claim 4, wherein an included angle is formed between the wind direction of the through hole and the direction of the air inlet of the negative pressure mechanism, and the wind direction of the through hole is inclined towards the light source.

6. The efficient heat dissipation lamp box with the upper cover as claimed in claim 5, wherein the inner diameter of the through hole is larger at one end and smaller at the other end, and the smaller inner diameter is located at the inner sidewall of the bottom case.

7. The efficient heat dissipating light box with the upper cover as claimed in claim 4, wherein the inner wall of the through hole is waved.

8. The efficient heat dissipating light box with upper cover as claimed in any one of claims 1 to 7, wherein the outer side wall of the heat dissipating fin is waved.

9. The efficient heat dissipation lamp box with the upper cover according to any one of claims 1 to 7, wherein a mounting portion for mounting the light source is disposed on the bottom shell corresponding to the opening, and the light source is mounted on the mounting portion and then forms a sealed cavity with the upper cover.

10. A lamp comprising the high-efficiency heat-dissipating lamp housing with the upper cover as claimed in any one of claims 1 to 9.