TWM496722U - Waterproof and explosion-proof LED lamp - Google Patents

Description

Waterproof and explosion-proof LED lamps

The present invention relates to an LED lamp, and more particularly to a waterproof and explosion-proof LED lamp.

LED (Light Emitting Diode) has the advantages of small size, power saving, fast response time, rich colors, and environmental protection. It has already become an important light-emitting element in modern life. It is also commonly used as a lighting fixture to form an LED luminaire.

When LEDs are used in lighting and converted into light energy by electrical energy, heat and high temperatures are generated. If the gas inadvertently leaks into the interior of the LED lamp, it is easy to cause an explosion due to the high temperature of the LED igniting the gas. Furthermore, if the external moisture enters the interior of the LED lamp, it will easily cause the LED lamp to malfunction. In addition, when the LED is heated up during use, the brightness of the LED is reduced by 0.9% for every 1 °C rise, and therefore heat must be effectively dissipated.

Conventional LED lamps usually simply assemble necessary components such as a substrate, an LED light-emitting element, a reflective lens, and a heat-dissipating housing, and there is no good waterproof and gas-proof design, resulting in external moisture and gas. It is easy to invade the inside of the LED luminaire, causing adverse effects. Moreover, the heat dissipation structure of the conventional LED lamp is usually set in the lamp holder housing. Multiple heat sink fins for heat dissipation. However, when the heat sink fin is used as a heat dissipation path, it is not only bulky, but also has a heat dissipation effect of heat conduction, and does not have a heat dissipation effect of natural convection of air. Moreover, because the fins are too dense, some of the heat is accumulated between the fins, and the heat dissipation effect is not good.

The utility model provides a waterproof and explosion-proof LED lamp with waterproof explosion-proof and good heat dissipation effect.

According to one aspect of the present invention, a waterproof and explosion-proof LED lamp includes a heat dissipating body unit, a light emitting unit, a reflective lens, an oil seal seat, a transparent cover, a joint unit, and a circuit board. The heat dissipation body unit includes a heat dissipation cylinder, a first closing cover and a second closing cover. The heat dissipating cylinder has a first end portion and a second end portion at opposite ends, and the wall of the heat dissipating cylinder is provided with a plurality of air convection passages from the first end portion to the second end portion, and the inner circumference of the heat dissipating cylinder A receiving chamber is formed. The first closing cover and the second closing cover are respectively disposed at the first end portion and the second end portion of the heat dissipation cylinder. The light emitting unit is disposed on the first closed cover, and the light emitting unit has a substrate and a plurality of LEDs disposed on the substrate. The reflective lens covers the light emitting unit. The oil seal seat is combined with the first cover and covered by the reflective lens, and the oil seal seat and the first cover and the reflective lens respectively have a first oil seal and a second oil seal. The transparent cover is combined with the oil seal seat, and a third oil seal is disposed between the transparent cover and the oil seal seat. The joint unit is threaded through the second closing cover. The circuit board is accommodated in the accommodating chamber of the heat dissipating cylinder, and is electrically connected to the joint unit and the illuminating unit.

According to an embodiment of the invention, a fourth oil seal is provided between the second closure and the second end.

According to an embodiment of the present invention, the joint unit includes: a hollow bolt disposed through the second closing cover; a nut located at an inner end surface of the second closing cover and screwed with the hollow bolt; and a waterproof gasket covering the hollow The outer circumference of the bolt is between the hollow bolt and the outer end surface of the second closing cover; and the power cord is disposed inside the hollow bolt.

According to an embodiment of the present invention, the first closing cover and the transparent cover respectively have a first ring wall and a second ring wall, and the inner walls respectively have a first internal thread portion and a second internal thread portion, and the outer wall of the oil seal seat is Each of the height positions has a first male thread portion and a second male thread portion respectively screwed into the first female thread portion and the second female thread portion.

According to an embodiment of the present invention, the inner circumference of the first ring wall of the first closing cover forms a groove, and the light emitting unit and the reflecting lens are received in the groove.

According to the novel LED lamp, according to the oil seal seat and the first oil seal, the second oil seal and the third oil seal, the external moisture and gas can be prevented from intruding into the oil seal seat and the light-emitting unit, and the utility model has the functions of waterproofing and explosion-proof; The plurality of air convection passages disposed through the two opposite ends of the heat dissipation body unit enable the heat dissipation body unit to have heat dissipation effect of heat conduction and air convection.

100‧‧‧Solution body unit

110‧‧‧heating cylinder

111‧‧‧First end

112‧‧‧ second end

113‧‧‧Air convection channel

114‧‧‧ accommodating room

120‧‧‧First closure

121‧‧‧First ring wall

122‧‧‧First internal thread

123‧‧‧ Groove

130‧‧‧Second closed cover

200‧‧‧Lighting unit

210‧‧‧Substrate

220‧‧‧LED

300‧‧‧Reflective lens

400‧‧‧ oil seal seat

410‧‧‧First oil seal

420‧‧‧Second oil seal

430‧‧‧ third oil seal

440‧‧‧fourth oil seal

450‧‧‧First external thread

460‧‧‧Second external thread

500‧‧‧clear cover

510‧‧‧ second ring wall

520‧‧‧Second internal thread

600‧‧‧Connector unit

610‧‧‧ hollow bolts

620‧‧‧ nuts

630‧‧‧Waterproof gasket

640‧‧‧Power cord

FIG. 1 is a perspective view showing the appearance of a waterproof and explosion-proof LED lamp according to an embodiment of the present invention.

Fig. 2 is an exploded view showing the waterproof and explosion-proof LED lamp shown in Fig. 1.

Fig. 3 is a cross-sectional view showing the waterproof and explosion-proof LED lamp shown in Fig. 1.

Fig. 4 is an enlarged view showing the main part of the waterproof and explosion-proof LED lamp shown in Fig. 4.

The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of embodiments with reference to the drawings.

Referring to FIG. 1 to FIG. 4 , a waterproof and explosion-proof LED lamp according to an embodiment of the present invention includes a heat dissipation body unit 100 , a light emitting unit 200 , a reflective lens 300 , an oil seal seat 400 , a transparent cover 500 , and a transparent cover 500 . The connector unit 600 is connected to a circuit board 700.

The heat dissipation body unit 100 includes a heat dissipation cylinder 110, a first closure cover 120 and a second closure cover 130.

The heat dissipation cylinder 110 is made of a material having good thermal conductivity (for example, aluminum, copper or an alloy thereof). The heat dissipating cylinder 110 has a first end portion 111 and a second end portion 112 opposite to each other. The wall of the heat dissipation cylinder 110 is provided with a plurality of air convection passages 113 from the first end portion 111 to the second end portion 112. The inner circumference of the heat dissipation cylinder 110 forms a receiving chamber 114.

The first closing cover 120 and the second closing cover 130 are also made of a material having good thermal conductivity, and are respectively disposed at the first end portion 111 of the heat dissipation cylinder 110. And a second end portion 112. The first closing cover 120 has a first annular wall 121 having a first internal threaded portion 122 on its inner wall and a recess 123 formed in the inner circumference of the first annular wall 121.

The light emitting unit 200 has a substrate 210 and a plurality of LEDs 220 disposed on the substrate. The reflective lens 300 covers the light emitting unit 200 for reflecting the light emitted by the LED. The light emitting unit 200 and the reflective lens 300 are received in the recess 123 of the first closing cover 120. The heat generated by the LED 220 can be dissipated by the heat conduction of the first closed cover 120 and the heat dissipating cylinder 110, and the natural convection of the air of the air convection passage 113 can be utilized to dissipate the heat and heat dissipation. Speed and effect.

The outer wall of the oil seal seat 400 has a first external thread portion 450 and a second external thread portion 460 at different height positions. The oil seal seat 400 is screwed and fixed to the first internal thread portion 122 of the first closure cover 120 by the first external thread portion 450 thereof, and the oil seal seat 400 covers the reflective lens 300 and is combined with the first closure cover 120 and the reflective lens 300. There is a first oil seal 410 and a second oil seal 420 respectively to prevent external moisture and gas from intruding into the light emitting unit 200.

The transparent cover 500 is used to cover the outer end surface of the LED lamp and allows the light generated by the LED to pass. The transparent cover 500 has a second annular wall 510 having an inner threaded portion 520 on its inner wall. The transparent cover 500 is screwed and fixed by the second internal thread portion 520 and the second external thread portion 460 of the oil seal seat 400, and a third oil seal 430 is disposed between the transparent cover 500 and the oil seal seat 400 to prevent external moisture. And the gas invades the oil seal seat 400.

The second closing cover 130 and the second end of the heat dissipation cylinder 110 There is a fourth oil seal 440 between 112 to prevent external moisture and gas from intruding into the interior of the heat dissipation cylinder 110.

The connector unit 600 is disposed on the second closing cover 130 of the heat dissipation cylinder 110 for guiding a power cord into the interior of the heat dissipation cylinder 110. The joint unit 600 includes a hollow bolt 610, a nut 620, a waterproof gasket 630 and a power cord 640. The hollow bolt 610 is disposed on the second closing cover 130. The nut 620 is located on the inner end surface of the second closing cover 130 and is screwed with the hollow bolt 610. The waterproof gasket 630 is sleeved on the outer circumference of the hollow bolt 610. The hollow bolt 610 is disposed between the outer end surface of the second closure cover 130; the power cord 640 is disposed inside the hollow bolt 610.

The circuit board 700 has a drive circuit and necessary electronic components. The circuit board 700 is received in the accommodating chamber 114 of the heat dissipating cylinder 110 and electrically connected to the splicing unit 600 and the illuminating unit 200 for driving the illuminating unit 200 to illuminate.

According to the waterproof and explosion-proof LED lamp according to an embodiment of the present invention, according to the oil seal seat 400 and the first oil seal 410, the second oil seal 420 and the third oil seal 430, the external moisture and gas can be prevented from intruding into the oil seal seat 400 and emitting light. The unit 200 and the plurality of air convection passages 113 through the two opposite ends of the heat dissipation body unit 100 enable the heat dissipation body unit 100 to have heat dissipation effect of heat conduction and air convection.

Although the present invention is disclosed in the above embodiments, it is not intended to limit the present invention. Any one skilled in the art can make various modifications and retouchings without departing from the spirit and scope of the present invention. It is subject to the definition of the scope of the patent application attached.

100‧‧‧Solution body unit

110‧‧‧heating cylinder

111‧‧‧First end

112‧‧‧ second end

113‧‧‧Air convection channel

114‧‧‧ accommodating room

120‧‧‧First closure

121‧‧‧First ring wall

122‧‧‧First internal thread

123‧‧‧ Groove

130‧‧‧Second closed cover

200‧‧‧Lighting unit

210‧‧‧Substrate

220‧‧‧LED

300‧‧‧Reflective lens

400‧‧‧ oil seal seat

410‧‧‧First oil seal

420‧‧‧Second oil seal

430‧‧‧ third oil seal

440‧‧‧fourth oil seal

450‧‧‧First external thread

460‧‧‧Second external thread

500‧‧‧clear cover

510‧‧‧ second ring wall

520‧‧‧Second internal thread

600‧‧‧Connector unit

610‧‧‧ hollow bolts

620‧‧‧ nuts

630‧‧‧Waterproof gasket

640‧‧‧Power cord

Claims (5)

A waterproof and explosion-proof LED lamp comprises: a heat dissipating body unit, the heat dissipating body unit comprising: a heat dissipating cylinder having a first end portion and a second end portion opposite to each other, the wall of the heat dissipating cylinder being The first end portion to the second end portion are provided with a plurality of air convection passages, the inner circumference of the heat dissipation cylinder forms a receiving chamber, and a first closing cover is disposed at the first end of the heat dissipation cylinder And a second closing cover disposed at the second end of the heat dissipating cylinder; an illuminating unit disposed on the first closing cover, the illuminating unit having a substrate and a plurality of LEDs disposed on the substrate; a reflective lens covering the light-emitting unit; an oil seal seat coupled to the first cover and covering the reflective lens, and the oil seal seat and the first cover and the reflective lens respectively have a first An oil seal and a second oil seal; a transparent cover combined with the oil seal seat, and a third oil seal between the transparent cover and the oil seal seat; a joint unit piercing the second cover; and a circuit a plate placed in the receiving chamber of the heat sink cylinder, Electrically connected to the connector unit and the light emitting unit. The waterproof explosion-proof LED lamp of claim 1, wherein a fourth oil seal is disposed between the second closure and the second end. The waterproof explosion-proof LED lamp of claim 1, wherein the joint unit comprises: a hollow bolt disposed through the second closing cover; a nut located at an inner end surface of the second closing cover, and the hollow bolt And a waterproof gasket covering the outer circumference of the hollow bolt and interposed between the hollow bolt and the outer end surface of the second closing cover; and a power cord passing through the hollow bolt. The waterproof and explosion-proof LED lamp of claim 1, wherein the first cover and the transparent cover respectively have a first ring wall and a second ring wall, and the first ring wall and the inner wall of the second ring wall Each has a first internal thread portion and a second internal thread portion, and the outer wall of the oil seal seat has a first external thread portion and a second external thread portion at different height positions, the first external thread and the first The two external thread portions are respectively screwed to the first female thread portion and the second female thread portion. The waterproof explosion-proof LED lamp of claim 4, wherein the inner circumference of the first ring wall of the first closure cover forms a groove, and the light-emitting unit and the reflection lens are received in the groove.