CN109084188B

CN109084188B - LED lamp

Info

Publication number: CN109084188B
Application number: CN201810686851.4A
Authority: CN
Inventors: 叶伟炳
Original assignee: Dongguan Wenyu Industrial Co Ltd
Current assignee: Dongguan Wenyu Industrial Co Ltd
Priority date: 2018-06-28
Filing date: 2018-06-28
Publication date: 2020-10-23
Anticipated expiration: 2038-06-28
Also published as: CN109084188A

Abstract

The invention relates to an LED lamp. The LED lamp comprises a substrate, an air outlet cover, a driving assembly, an air guide blade, a plurality of LED lamp beads and a plurality of radiating fins, wherein the substrate comprises a substrate body and a connecting seat; the LED lamp beads are all arranged on the substrate body; the air outlet cover is arranged in the mounting cavity and is provided with an air outlet hole; the driving component is arranged on the air outlet cover in a penetrating way; the air guide blade is arranged at the power output end of the driving assembly and is positioned in the mounting cavity; because the substrate is directly connected with the radiating fins, heat on the substrate is quickly conducted to the radiating fins for radiating, and compared with the traditional LED lamp, the LED lamp has a better radiating effect, and the service life of the LED lamp is prolonged.

Description

LED lamp

Technical Field

The invention relates to the technical field of lighting lamps, in particular to an LED lamp.

Background

An LED lamp, also called an LED lamp, is a device capable of transmitting light, distributing and changing the light distribution of the LED lamp beads. The LED lamp comprises an LED lamp bead, all parts for fixing and protecting the LED lamp bead and circuit accessories necessary for being connected with a power supply. The LED lamp has the technical characteristics of high efficiency, energy conservation, safety, long service life, small size, clear light and the like, is becoming a dominant product of a new generation of lighting market, and powerfully draws the high-speed development of the environment-friendly and energy-saving industry.

The traditional LED lamp is mainly connected by conducting heat generated by light emission of the lamp to the radiating fins on the shell through the substrate for the LED lamp beads, so that the heat conduction efficiency is low, the radiating effect of the LED lamp is poor, and the service life of the LED lamp is poor.

Disclosure of Invention

Therefore, it is necessary to provide an LED lamp for solving the problem of poor heat conduction effect of the LED lamp.

An LED light fixture comprising:

the base plate comprises a base plate body and a connecting seat, the base plate body is connected to the connecting seat, the connecting seat is provided with an installation cavity and a plurality of vent holes, and the vent holes are communicated with the installation cavity;

the LED lamp beads are all arranged on the substrate body;

the air outlet cover is covered in the mounting cavity and is provided with an air outlet hole;

the driving assembly penetrates through the air outlet cover;

the air guide blade is arranged at the power output end of the driving assembly and is positioned in the mounting cavity; and

the radiating fins are arranged on one side, deviating from the base plate body, of the connecting seat, and are distributed at intervals along the circumferential direction of the connecting seat.

In the LED lamp, the substrate body is connected to the connecting seat, and the plurality of LED lamp beads are arranged on the substrate body, so that heat generated by light emission of each LED lamp bead is transferred to the substrate body; because the connecting seat is provided with the mounting cavity and a plurality of vent holes, the vent holes are all communicated with the mounting cavity, the air outlet cover is arranged in the mounting cavity, the driving component is arranged on the air outlet cover in a penetrating way, the air guide blades are positioned in the mounting cavity and arranged on the power output end of the driving component, so that the driving component drives the air guide blades to rotate, the rotation of the air guide blades enables the region of the mounting cavity communicated with the vent holes to generate negative pressure, thereby leading the outside air to rapidly enter the mounting cavity through the vent holes and be discharged from the air outlet holes, leading the air flowing in the vent holes to simultaneously exchange heat with the connecting seat, and a plurality of radiating fins are arranged on one side of the connecting seat away from the base plate body, leading partial heat of the connecting seat to exchange heat with the air at the periphery of the LED lamp through the radiating fins, thus greatly, because the substrate is directly connected with the radiating fins, heat on the substrate is quickly conducted to the radiating fins for radiating, and compared with the traditional LED lamp, the LED lamp has a better radiating effect, and the service life of the LED lamp is prolonged.

In one embodiment, the substrate body is welded on the connecting seat, so that the substrate body and the connecting seat are firmly connected and have better heat conduction effect.

In one embodiment, the material of the substrate body is copper or aluminum, so that the substrate body has better thermal conductivity.

In one embodiment, the heat conduction rate of the substrate body is less than that of the connecting seat, so that the heat of the substrate body can be quickly conducted to the connecting seat for heat dissipation, and in addition, the heat on the connecting seat can be quickly transferred to the heat dissipation sheet for heat dissipation, so that the heat dissipation rate of the LED lamp is improved.

In one embodiment, the drive assembly comprises a motor and a connecting shaft; the connecting hole has been seted up on the air-out cover, the motor wear to locate in the connecting hole and with the air-out cover is connected, makes drive assembly wear to locate the air-out covers, the connecting axle with the power take off hub connection of motor, the wind-guiding blade set up in on the connecting axle, the motor drives the connecting axle and rotates, and the connecting axle rotates and drives the wind-guiding blade and rotate, makes the outlying air of LED lamps and lanterns can loop through ventilation hole, installation cavity and exhaust vent, realizes dispelling the heat to the connecting seat.

In one embodiment, the driving assembly further comprises a coupler, one end of the coupler is connected with the power output shaft of the motor, and the other end of the coupler is connected with the connecting shaft, so that power transmission between the power output shaft of the motor and the connecting shaft is realized, and meanwhile, the connection buffering performance between the power output shaft of the motor and the connecting shaft is improved.

In one embodiment, the number of the air outlet holes is multiple, and the air outlet holes are distributed at intervals along the circumferential direction of the air outlet cover, so that air can quickly pass through the air vent and the mounting cavity, and the heat dissipation rate of the LED lamp is improved.

In one embodiment, the LED lamp beads are arranged on the substrate body at intervals, so that heat generated by the LED lamp beads is quickly transferred to the substrate for heat dissipation, and the heat dissipation rate of the LED lamp is improved.

In one embodiment, the heat dissipation fins are welded on the connection seat, so that the connection seat and the heat dissipation fins are firmly connected, and heat on the connection seat can be quickly conducted to the heat dissipation fins for heat dissipation.

In one embodiment, the included angle between two adjacent radiating fins is 10-15 degrees, so that the LED lamp has good radiating performance and the number of the radiating fins is moderate.

Drawings

FIG. 1 is a schematic diagram of an LED lamp according to an embodiment;

FIG. 2 is a cross-sectional view of the LED light fixture of FIG. 1;

fig. 3 is a partially enlarged view of the LED lamp shown in fig. 2.

Detailed Description

To facilitate an understanding of the present invention, an LED lamp will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the LED lamp are shown in the drawings. However, LED fixtures may be implemented in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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 also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

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 herein in the description of the LED light fixture 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.

For example, an LED lamp includes a substrate, an air outlet housing, a driving assembly, an air guide vane, a plurality of LED beads, and a plurality of heat dissipation fins; for example, the base plate includes a base plate body and a connection socket; for example, the substrate body is connected to the connecting seat; for example, the connecting seat is provided with a mounting cavity and a plurality of vent holes; for example, a plurality of the vent holes are all communicated with the mounting cavity; for example, the plurality of LED lamp beads are all arranged on the substrate body; for example, the air outlet cover is arranged in the mounting cavity; for example, the air outlet cover is provided with an air outlet hole; for example, the driving component is arranged on the air outlet cover in a penetrating way; for example, the air guide blade is arranged at the power output end of the driving assembly, and the air guide blade is positioned in the mounting cavity; for example, the plurality of heat dissipation fins are all arranged on one side of the connecting seat, which is far away from the substrate body, and the plurality of heat dissipation fins are distributed at intervals along the circumferential direction of the connecting seat. For example, an LED lamp comprises a substrate, an air outlet cover, a driving assembly, an air guide blade, a plurality of LED lamp beads and a plurality of radiating fins, wherein the substrate comprises a substrate body and a connecting seat, the substrate body is connected to the connecting seat, the connecting seat is provided with a mounting cavity and a plurality of ventilation holes, and the ventilation holes are all communicated with the mounting cavity; the LED lamp beads are arranged on the substrate body; the air outlet cover is arranged in the mounting cavity and is provided with an air outlet hole; the driving component is arranged on the air outlet cover in a penetrating way; the air guide blade is arranged at the power output end of the driving assembly and is positioned in the mounting cavity; the plurality of radiating fins are arranged on one side, deviating from the base plate body, of the connecting seat, and the plurality of radiating fins are distributed at intervals along the circumferential direction of the connecting seat.

As shown in fig. 1 and fig. 2, an LED lamp 10 of an embodiment includes a substrate 100, an air outlet cover 200, a driving assembly 300, an air guiding blade 400, a plurality of LED lamp beads 500, and a plurality of heat dissipation fins 600.

The substrate 100 includes a substrate body 110 connected to the connection socket and the connection socket 120. In one embodiment, the substrate body is welded on the connecting seat, so that the substrate body and the connecting seat are firmly connected and have better heat conduction effect. It can be understood that, in other embodiments, the substrate body and the connecting seat may be integrally formed, so that the substrate has a simpler structure and a lower manufacturing cost.

In one embodiment, the material of the substrate body is copper or aluminum, so that the substrate body has better thermal conductivity. In this embodiment, the material of the substrate body is copper, so that the thermal conductivity of the substrate body is better. In one embodiment, the heat conduction rate of the substrate body is less than that of the connecting seat, so that the heat of the substrate body can be quickly conducted to the connecting seat for heat dissipation, and in addition, the heat on the connecting seat can be quickly transferred to the heat dissipation sheet for heat dissipation, so that the heat dissipation rate of the LED lamp is improved.

The connecting seat 120 is provided with a mounting cavity 122 and a plurality of ventilation holes 124, and the ventilation holes are communicated with the mounting cavity. For example, a plurality of the ventilation holes are distributed along the circumferential direction of the connecting seat at intervals, so that the air on the periphery of the connecting seat quickly enters the mounting cavity through the ventilation holes, and the heat dissipation rate of the LED lamp is improved.

A plurality of the LED lamp beads 500 are all disposed on the substrate body 110. The air outlet cover is arranged in the mounting cavity 122. An air outlet hole 210 communicated with the mounting cavity is formed in the air outlet cover 200. The driving component 300 is arranged on the air outlet cover 200 in a penetrating way. Air guide blade 400 set up in drive assembly's power take off end, just air guide blade is located in installation cavity 122. The plurality of heat dissipation fins 600 are arranged on one side of the connecting seat, which is far away from the substrate body, and the plurality of heat dissipation fins are distributed at intervals along the circumferential direction of the connecting seat. For example, each ventilation hole is located between two adjacent cooling fins, so that air circulates between the two adjacent cooling fins, and the heat dissipation performance of the LED lamp is improved. It can be understood that the number of the vent holes formed between two adjacent radiating fins on the connecting seat is not limited to one, and can be more than two, so that the radiating effect of the LED lamp is better.

As shown in fig. 2, in one embodiment, the driving assembly 300 includes a motor 310 and a coupling shaft 320. The air outlet cover is provided with a connecting hole 200a, and the motor is arranged in the connecting hole in a penetrating manner and is connected with the air outlet cover, so that the driving assembly is arranged on the air outlet cover in a penetrating manner. The connecting axle with the power take off hub connection of motor, the wind blade set up in on the connecting axle, make the motor drive the connecting axle and rotate, and the connecting axle rotates and drives the wind blade and rotate to make the outlying air of LED lamps and lanterns can loop through ventilation hole, installation cavity and exhaust vent, realize dispelling the heat to the connecting seat.

In order to improve the damping performance of the connection between the power output shaft of the motor and the connecting shaft, in one embodiment, the driving assembly further comprises a coupler. One end of the coupler is connected with the power output shaft of the motor, and the other end of the coupler is connected with the connecting shaft, so that power transmission between the power output shaft of the motor and the connecting shaft is realized, and meanwhile, the buffer performance of connection between the power output shaft of the motor and the connecting shaft is improved.

For example, the outlet housing 200 includes a housing body 200a and a plurality of connecting portions 200b extending outwardly from the housing body, and each connecting portion 200b is connected to the connecting socket 200 a. The air outlet 210 is opened on the cover body 200a, so that the air outlet cover is arranged on the substrate. Referring also to fig. 3, as another example, the LED light fixture 10 further includes a plurality of fasteners 650. Each of the connecting portions 200b is formed with a mounting hole 220, the connecting base is formed with a plurality of threaded holes 125, and each of the fasteners is respectively inserted into the mounting hole of each of the connecting portions and each of the threaded holes, so that each of the connecting portions is fixedly connected with the connecting base. For another example, the connection seat 120 includes a seat body 120a and a boss 120b connected to each other, the installation cavity 122 and the vent hole 124 are both opened on the seat body 120a, and the boss 120b surrounds the installation cavity. The plurality of heat dissipation fins 600 are disposed on the seat body 120a, and the plurality of threaded holes are disposed on the bosses. For another example, the connecting seat 120 further includes a plurality of fixing sleeves 127, two ends of each fixing sleeve respectively abut against the boss and each connecting portion, and each fixing sleeve is sleeved on the corresponding fastener, so that the cover body is fixedly connected to the boss. For example, the LED lamp 10 further includes an elastic ring 700, and two sides of the elastic ring are elastically abutted with the cover body and the seat body, respectively. If so, the elastic ring is in a ring shape and surrounds the installation cavity, so that the air outlet cover is tightly connected with the seat body, the air on the periphery of the connecting seat is prevented from entering the installation cavity through a gap between the cover body and the seat body, a better air guiding effect is generated in the rotation process of the air guiding blades in the installation cavity, and the LED lamp is ensured to have better heat dissipation performance.

As shown in fig. 1 and fig. 2, for example, the LED lamp 10 further includes an annular copper tube 800, and the connecting seat has a connecting groove formed on a periphery thereof. The annular copper pipe is positioned in the connecting groove and welded with the connecting seat, so that the heat of the connecting seat is partially conducted to the annular copper pipe for heat dissipation. In order to further improve the heat dissipation performance of the annular copper pipe, the annular copper pipe 800 is provided with an air inlet hole 810, a ventilation cavity 820 and a plurality of communication holes 830, the air inlet hole 810 is communicated with the ventilation cavity 820, the communication holes 830 are communicated with the ventilation cavity 820, the communication holes are communicated with the ventilation holes in a one-to-one correspondence mode, namely, each communication hole is communicated with the corresponding ventilation hole. For another example, the ventilation cavity is formed along the extending direction of the annular copper pipe. If the air guide vanes rotate, the air on the periphery of the connecting seat can enter the installation cavity through the air vent, and also can enter the installation cavity through the air inlet hole, the ventilation cavity, the communication hole and the air vent in sequence, and the air entering the air inlet hole, the ventilation cavity and the communication hole exchanges heat with the annular copper pipe, so that the heat dissipation performance of the annular copper pipe is improved. In order to improve the heat dissipation performance of the annular copper pipe, each cooling fin is further connected with the annular copper pipe, so that heat on the annular copper pipe is conducted to the cooling fins to exchange heat with air, the heat of the annular copper pipe exchanges heat with the air through the cooling fins, and the heat dissipation performance of the annular copper pipe is improved through conducting the heat to the cooling fins to exchange heat with the air. Furthermore, each cooling fin is welded on the annular copper pipe, so that the cooling fins are firmly connected with the annular copper pipe, and meanwhile, the heat on the annular copper pipe can be quickly conducted to the cooling fins for cooling.

In one embodiment, the plurality of LED lamp beads 500 are disposed on the substrate body 110 at intervals, so that heat generated by the plurality of LED lamp beads is quickly transferred to the substrate for heat dissipation, thereby improving the heat dissipation rate of the LED lamp.

In one embodiment, the heat dissipation fins are welded on the connection seat, so that the connection seat and the heat dissipation fins are firmly connected, and heat on the connection seat can be quickly conducted to the heat dissipation fins for heat dissipation. In one embodiment, the included angle between two adjacent radiating fins is 10-15 degrees, so that the LED lamp has good radiating performance and the number of the radiating fins is moderate. In the embodiment, the included angle between two adjacent heat dissipation fins is 12 °, so that the LED lamp has better heat dissipation performance and the number of the heat dissipation fins is moderate.

Referring to fig. 2 again, in order to avoid the problem that the LED lamp beads are easily damaged, for example, the LED lamp 10 further includes a protection ring 900 disposed on the connection seat, the protection ring surrounds each of the LED lamp beads, and the protection ring has light transmittance. If the protective ring is in a circular ring shape, light rays emitted by the LED lamp beads can be emitted through the protective ring, so that the LED lamp beads are not easy to touch by foreign objects, and the protective ring can better protect the LED lamp beads. Referring to fig. 1, for another example, a plurality of open grooves 910 are formed along the circumferential direction of the protective ring 900, and external air can enter through the open grooves to exchange heat with heat generated on the outer wall of the LED lamp bead. For another example, the protection ring has thermal conductivity, so that heat on the connecting seat can be conducted to the protection ring for heat dissipation, and the heat dissipation performance of the connecting seat is improved.

In order to improve the lighting effect of the LED lamp, the LED lamp 10 further includes an arc-shaped light-reflecting sheet 1100, the arc-shaped light-reflecting sheet is disposed on the inner wall of the guard ring, and the arc-shaped light-reflecting sheet faces the light-emitting direction of the LED lamp bead and is bent. For another example, the arc-shaped reflecting sheet is coated with a reflecting layer. For another example, the thickness of the light reflecting layer is 2.5 mm-3.2 mm. For another example, the bending angle of the arc-shaped luminous sheet is 30-54 degrees. If the bending angle of the arc-shaped light-emitting sheet is 48 degrees, light rays emitted by the LED lamp beads are quickly reflected to the outside through the arc-shaped light-reflecting sheet, the light-reflecting effect of the LED lamp is improved, and the problem that the protective ring is overheated due to the fact that the light rays of the LED lamp beads are excessively concentrated on the protective ring is avoided.

For example, the arc-shaped reflective sheet is provided with a heat conducting layer. For another example, the thickness of the heat conducting layer is 2mm to 3 mm. For another example, the heat conducting layer is made of copper or aluminum, so that heat on the protective ring is conducted to the heat conducting layer through the arc-shaped light reflecting sheets to exchange heat with air, the heat conducting performance of the protective ring is improved, and the protective ring can be effectively prevented from being overheated. Furthermore, the heat conducting layer extends to the connection position of the arc-shaped light reflecting sheet and the protective ring, so that heat on the protective ring is directly transferred to the heat conducting layer for heat dissipation, and the heat dissipation rate of the protective ring is improved.

For example, adjacent two on the connecting seat have seted up the convection current hole between the LED lamp pearl, the convection current hole with the ventilation hole intercommunication makes the peripheral air of connecting seat get into in the ventilation hole through the convection current hole, improves the speed that the air got into the ventilation hole, improves the radiating efficiency of connecting seat. If so, in order to solve the problem that the dust enters the convection hole and causes blockage, the LED lamp further comprises a first filter screen plug, the first filter screen plug is arranged in the convection hole and used for filtering the dust, and the problem that the dust in the air enters the convection hole and causes blockage is avoided. If, in order to solve the problem that the dust gets into the downthehole jam that causes of air inlet, the LED lamps and lanterns still include second filter screen stopper, second filter screen stopper is located in the air inlet, second filter screen stopper is used for filtering the dust, has avoided the dust in the air to get into the downthehole problem that causes the jam of air inlet.

In order to improve the heat dissipation rate of the annular copper tube and facilitate the installation and fixation of the LED lamp, for example, the LED lamp further comprises a connecting piece, a first heat conduction block and a second heat conduction block, and the cross section of the connecting piece is in a U shape. First heat conduction piece and second heat conduction piece all weld on annular copper pipe, the both ends of connecting piece are connected with first heat conduction piece and second heat conduction piece respectively, make the heat of annular copper pipe conduct respectively copper pipe first heat conduction piece and second heat conduction piece to the connecting piece on carry out the heat exchange with external air, the top of connecting piece can be fixed to target position department, has so not only improved the heat dissipation rate of annular copper pipe still is convenient for the installation of LED lamps and lanterns fixed. For example, the LED light fixture further includes a first fastener and a second fastener. And a first fixing hole and a second fixing hole are respectively formed at two ends of the connecting piece. A first threaded hole is formed in the first heat conduction block, and a second threaded hole is formed in the second heat conduction block. The first fasteners are respectively arranged in the first fixing holes and the first threaded holes in a penetrating mode, the second fasteners are respectively arranged in the second fixing holes and the second threaded holes in a penetrating mode, one ends of the connecting pieces are fixedly connected to the first heat conducting blocks through the first fasteners, the other ends of the connecting pieces are fixedly connected to the second heat conducting blocks through the second fasteners, and the two ends of the connecting pieces are fixedly connected to the first heat conducting blocks and the second heat conducting blocks.

In order to increase the heat dissipation rate of the connector, for example, the LED lamp further includes a plurality of convection fins, and the convection fins are disposed on the connector. As another example, the plurality of convection fins are distributed along the extending direction of the connection member. For another example, the plurality of convection fins are distributed at intervals along the length direction of the connecting piece, so that heat on the connecting piece is conducted to the convection fins to exchange heat with air, and the heat dissipation rate of the connecting piece is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An LED lamp, comprising:

the LED lamp beads are all arranged on the substrate body;

the driving assembly penetrates through the air outlet cover;

the plurality of radiating fins are arranged on one side of the connecting seat, which is far away from the base plate body, and are distributed at intervals along the circumferential direction of the connecting seat, each ventilating hole is positioned between two adjacent radiating fins, and the plurality of radiating fins are arranged outside the mounting cavity;

the LED lamp further comprises an annular copper pipe, a connecting groove is formed in the periphery of the connecting seat, the annular copper pipe is located in the connecting groove, the connecting groove is communicated with the mounting cavity, and the annular copper pipe is connected with the radiating fins.

2. The LED lamp of claim 1, wherein the substrate body is soldered to the connection socket.

3. The LED lamp according to claim 1 or 2, wherein the material of the substrate body is copper or aluminum.

4. The LED lamp of claim 3, wherein the substrate body has a thermal conductivity rate less than a thermal conductivity rate of the connection socket.

5. The LED light fixture of claim 1 or 2 wherein the drive assembly includes a motor and a connecting shaft; the air outlet cover is provided with a connecting hole, the motor is arranged in the connecting hole in a penetrating manner and is connected with the air outlet cover, so that the driving assembly is arranged on the air outlet cover in a penetrating manner, the connecting shaft is connected with a power output shaft of the motor, and the air guide blades are arranged on the connecting shaft.

6. The LED lamp of claim 5, wherein the driving assembly further comprises a coupler, one end of the coupler is connected with the power output shaft of the motor, and the other end of the coupler is connected with the connecting shaft.

7. The LED lamp according to claim 1 or 2, wherein the number of the air outlet holes is plural, and the plural air outlet holes are distributed at intervals along the circumferential direction of the air outlet housing.

8. The LED lamp according to claim 1 or 2, wherein the plurality of LED lamp beads are arranged on the substrate body at intervals.

9. The LED lamp according to claim 1 or 2, wherein a plurality of the heat sinks are welded to the connecting base.

10. The LED lamp according to claim 1 or 2, wherein an included angle between two adjacent radiating fins is 10 ° to 15 °.