Waterproof and dustproof downlight

Abstract

A waterproof and dustproof downlight comprises: an outer shell tube, a chamber is formed therein, the chamber has an upper opening and a lower opening, and a partition is transversely arranged in the chamber; an upper shell cover is arranged in the upper opening of the chamber of the outer shell tube; an upper waterproof box is hollow and arranged on the top surface of the partition, and an upper chamber is formed on the bottom of the upper waterproof box, and an upper waterproof gasket is arranged on the annular circumference of the bottom of the upper waterproof box to seal the upper chamber; a lower waterproof box is hollow and arranged on the bottom surface of the partition, and a lower chamber is formed on the top of the lower waterproof box, and a lower waterproof gasket is arranged on the annular circumference of the top of the lower waterproof box to seal the lower chamber; and a light source assembly is fixed on the bottom surface of the partition, arranged in the lower chamber of the upper and lower waterproof boxes, and electrically connected to the power supply circuit assembly. The upper and lower waterproof boxes and the waterproof gasket provide good waterproof and dustproof functions.

Description

Technical Field

[0001] The present invention relates to a downlight, and more particularly to a waterproof and dustproof downlight, which can meet the dustproof and waterproof performance standard of the Ingress Protection 65 (IP65) level, that is, it can be completely dustproof, preventing external dust from entering the waterproof and dustproof downlight and affecting its operation, and can prevent low-pressure water columns from being sprayed onto the waterproof and dustproof downlight from any angle, causing negative effects on the waterproof and dustproof downlight. Background Art

[0002] Downlights are lighting equipment that are often installed indoors to provide indoor lighting or to create a special indoor atmosphere. For example, downlights that emit yellow light can provide a warm and cozy indoor atmosphere.

[0003] There are newer downlights on the market that use light-emitting diodes instead of traditional bulbs as their light-emitting units, and are paired with reflectors and light diffusion plates to help evenly diffuse the light from the LEDs. Compared to bulb-type downlights, these downlights are smaller in size and more energy-efficient, saving users money on electricity bills.

[0004] However, the waterproof and dustproof performance of the above-mentioned downlight is not good, and can only meet the dustproof and waterproof performance standard of the Ingress Protection 44 (IP44) level. In other words, it can only prevent the entry of objects with a diameter greater than 1 cm, but cannot prevent the entry of small dust particles. It can only prevent splashing, but cannot prevent low-pressure water jets. Dust can easily enter the downlight and accumulate, hindering the heat dissipation of the light-emitting diodes, or reducing the illumination of the downlight. In addition, water vapor can easily enter the downlight, causing the circuit board where the light-emitting diodes are located to short-circuit and cause malfunctions. Furthermore, after water vapor enters the above-mentioned downlight, water will accumulate and it is not easy to discharge the downlight, causing the downlight itself to rust, further reducing the life of the downlight, and increasing the probability of downlight failure. Summary of the invention

[0005] After observing that the above-mentioned existing downlights have insufficient waterproof and dustproof performance, which leads to problems such as shortened lifespan or malfunctions, the inventor of the present case improved the deficiencies and defects and developed a waterproof and dustproof downlight.

[0006] To achieve the above purpose, the aforementioned waterproof and dustproof downlight includes:

[0007] An outer shell cylinder, wherein a chamber is formed therein, the chamber having an upper opening and a lower opening, and a partition is transversely arranged in the chamber;

[0008] An upper shell cover, which is arranged in the upper opening of the housing chamber of the outer shell cylinder;

[0009] An upper waterproof box, which is hollow and arranged on the top surface of the partition, and an upper cavity is formed at the bottom of the upper waterproof box, and an upper waterproof gasket is arranged on the annular circumference of the bottom of the upper waterproof box, and the upper waterproof gasket is in close contact with the top surface of the partition and the annular circumference of the bottom of the upper waterproof box and closes the upper cavity;

[0010] A lower waterproof box, which is hollow and arranged on the bottom surface of the partition, and a lower cavity is formed on the top of the lower waterproof box, a lower waterproof gasket is arranged on the annular circumference of the top of the lower waterproof box, the lower waterproof gasket is in close contact with the bottom surface of the partition and the annular circumference of the top of the lower waterproof box and closes the lower cavity, and a lower opening connected with the lower cavity is formed on the bottom end of the lower waterproof box;

[0011] A power supply circuit assembly, which is arranged in the upper cavity of the upper waterproof box; and

[0012] The light source assembly is fixed on the bottom surface of the partition, disposed in the lower cavity of the upper and lower waterproof boxes, and electrically connected to the power supply circuit assembly.

[0013] Compared with the prior art, the above technical means have the following beneficial technical effects: the upper waterproof box and the upper waterproof gasket effectively seal the upper cavity in the upper waterproof box, and prevent the power supply circuit assembly from being accidentally invaded by dust or water vapor and causing a short circuit failure. In addition, the lower waterproof box and the lower waterproof gasket effectively seal the lower cavity of the lower waterproof box, and prevent the light source assembly from being accidentally invaded by dust or water vapor and causing a short circuit failure. Through the above technical means, the waterproof and dustproof downlight of the present invention meets the dustproof and waterproof performance standard of Ingress Protection 65 (IP65).

[0014] A power line is provided through the upper shell cover, and the power line is connected to the power supply circuit assembly.

[0015] The light source assembly includes a light-emitting unit, a connecting ring, and a reflective cup. The light-emitting unit is arranged on the bottom surface of the partition. The connecting ring is arranged on the bottom surface of the partition and the light-emitting unit is interposed between the partition and the connecting ring. The reflective cup is hollow and truncated cone-shaped, and is arranged on the connecting ring with its lower end aligned with the lower opening of the lower waterproof box.

[0016] The light source assembly further includes a light diffusion plate, at least a fixing plate, and a fixing ring. The light diffusion plate is arranged at the lower end of the reflective cup. The at least one fixing plate is snapped on the lower end of the reflective cup and fixed on the light diffusion plate. The fixing ring is sleeved on the annular edge of the light diffusion plate and abuts against the inner annular circumference of the lower opening of the lower waterproof box.

[0017] The number of the fixing plate is one, and the fixing plate is ring-shaped.

[0018] The number of the fixing plates is two, and the two fixing plates are semi-annular and are arranged at intervals in a relative manner.

[0019] The number of the fixing plates is three, and the two fixing plates are one-third ring-shaped and are arranged at equal intervals.

[0020] The number of the fixing plates is four, and the two fixing plates are in a quarter ring shape and are arranged at equal intervals.

[0021] The waterproof and dustproof downlight further comprises a reflector, which is hollow and truncated cone-shaped and is arranged at the lower opening of the accommodation chamber of the outer shell tube.

[0022] At least one drainage hole is formed through the annular periphery of the partition.

[0023] At least one drainage gap is formed between the reflector and the lower opening of the housing chamber of the outer shell.

[0024] The light emitting unit is a light emitting diode module.

[0025] The upper waterproof gasket and the lower waterproof gasket are made of silica gel.

[0026] The inventor of this case has also improved a waterproof and dustproof downlight, including:

[0027] An outer shell cylinder has a containing chamber formed therein, the containing chamber having an upper opening and a lower opening, and a partition plate is transversely arranged in the containing chamber;

[0028] An upper shell cover is disposed in an upper opening of the housing chamber of the outer shell cylinder;

[0029] An upper waterproof box is hollow and is disposed on the top surface of the partition, and an upper cavity is formed at the bottom of the upper waterproof box;

[0030] A lower waterproof box, which is hollow and arranged on the bottom surface of the partition, and a lower cavity is formed on the top of the lower waterproof box, a lower waterproof gasket is arranged on the annular circumference of the top of the lower waterproof box, the lower waterproof gasket is in close contact with the bottom surface of the partition and the annular circumference of the top of the lower waterproof box and closes the lower cavity, and a lower opening communicating with the lower cavity is formed on the bottom end of the lower waterproof box;

[0031] A power supply circuit assembly is disposed in the upper cavity of the upper waterproof box; and

[0032] The light source assembly is fixed on the bottom surface of the partition, disposed in the lower cavity of the upper and lower waterproof boxes, and electrically connected to the power supply circuit assembly.

[0033] The inventor of this case has improved a waterproof and dustproof downlight, comprising:

[0034] An outer shell cylinder has a containing chamber formed therein, the containing chamber having an upper opening and a lower opening, and a partition plate is transversely arranged in the containing chamber;

[0035] An upper shell cover is disposed in an upper opening of the housing chamber of the outer shell cylinder;

[0036] An upper waterproof box, which is hollow and arranged on the top surface of the partition, and an upper cavity is formed on the bottom of the upper waterproof box, and an upper waterproof gasket is arranged on the annular circumference of the bottom of the upper waterproof box, and the upper waterproof gasket is in close contact with the top surface of the partition and the annular circumference of the bottom of the upper waterproof box and closes the upper cavity;

[0037] A lower waterproof box is hollow and arranged on the bottom surface of the partition, and a lower cavity is formed on the top of the lower waterproof box, and a lower waterproof gasket is arranged on the annular periphery of the top of the lower waterproof box;

[0038] A power supply circuit assembly is disposed in the upper cavity of the upper waterproof box; and

[0039] The light source assembly is fixed on the bottom surface of the partition, disposed in the lower cavity of the upper and lower waterproof boxes, and electrically connected to the power supply circuit assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a diagram of the first embodiment of the present invention installed on a ceiling.

[0041] Figure 2 It is a three-dimensional exploded view of the first embodiment of the present invention.

[0042] Figure 3 This is a three-dimensional exploded view from another angle of the first embodiment of the present invention.

[0043] Figure 4 It is a side sectional view of the first embodiment of the present invention.

[0044] Figure 5 It is a three-dimensional exploded view of the light source assembly according to the second embodiment of the present invention, wherein the light emitting unit is omitted.

[0045] Figure 6 It is a three-dimensional exploded view of the light source assembly according to the third embodiment of the present invention, wherein the light emitting unit is omitted.

[0046] Figure 7 It is a three-dimensional exploded view of the light source assembly according to the fourth embodiment of the present invention, wherein the light emitting unit is omitted. DETAILED DESCRIPTION

[0047] Please refer to Figures 1 to 3 The first embodiment of the waterproof and dustproof downlight of the present invention can be installed on a ceiling, and includes: an outer shell 10, an upper shell cover 20, an upper waterproof box 30, a lower waterproof box 40, a power supply circuit component 50, a light source component 60 and a reflector 70.

[0048] The outer shell 10 has a chamber 100 formed therein, the chamber 100 having an upper opening and a lower opening, and a partition 15 is disposed transversely in the chamber 100. At least one drainage hole 150 is formed through the annular periphery of the partition 15.

[0049] The upper shell cover 20 is disposed in the upper opening of the housing chamber 100 of the outer shell tube 10. In addition, a power line 25 is provided through the upper shell cover 20.

[0050] Please refer to further Figure 4 The upper waterproof box 30 is hollow and is arranged on the top surface of the partition 15. An upper cavity 300 is formed at the bottom of the upper waterproof box 30. An upper waterproof gasket 35 is arranged on the annular periphery of the bottom of the upper waterproof box 30. The upper waterproof gasket 35 can be made of silicone. The upper waterproof gasket 35 is in close contact with the top surface of the partition 15 and the annular periphery of the bottom of the upper waterproof box 30, and closes the upper cavity 300.

[0051] Please refer to further Figure 4 The lower waterproof box 40 is hollow and is arranged on the bottom surface of the partition 15. A lower cavity 400 is formed on the top of the lower waterproof box 40. A lower waterproof gasket 45 is arranged on the annular circumference of the top of the lower waterproof box 40. The lower waterproof gasket 45 can be made of silicone. The lower waterproof gasket 45 is in close contact with the bottom surface of the partition 15 and the annular circumference of the top of the lower waterproof box 40, and closes the lower cavity 400. A lower opening 401 is formed on the bottom end of the lower waterproof box 40 and communicates with the lower cavity 400.

[0052] The power supply circuit assembly 50 is disposed in the upper chamber 300 of the upper waterproof box 30 and can be a power supply. In addition, the power supply circuit assembly 50 is connected to the power line 25.

[0053] The light source assembly 60 is fixed on the bottom surface of the partition 15, disposed in the lower cavity 400 of the lower waterproof box 40, and electrically connected to the power supply circuit assembly 50. The light source assembly 60 includes a light emitting unit 62, a connecting ring 61, a reflective cup 63, a light diffusion plate 64, at least one fixing sheet 65, and a fixing ring 66.

[0054] The light emitting unit 62 is disposed on the bottom surface of the partition 15 and can be a light emitting diode module. The connecting ring 61 is disposed on the bottom surface of the partition 15 and allows the light emitting unit 62 to be interposed between the partition 15 and the connecting ring 61. The reflective cup 63 is hollow and truncated cone-shaped, disposed on the connecting ring 61 and its lower end is aligned with the lower opening 401 of the lower waterproof box 40. The light diffusion plate 64 is disposed at the lower end of the reflective cup 63. The at least one fixing plate 65 is snapped on the lower end of the reflective cup 63 and fixed on the light diffusion plate 64, thereby combining the reflective cup 63 and the light diffusion plate 64. In addition, in the first embodiment of the present invention, the number of the at least one fixing plate 65 is two, and the two fixing plates 65 are semi-annular and spaced apart in a relative manner. The fixing ring 66 is sleeved on the annular edge of the light diffusion plate 64 and abuts against the inner annular circumference of the lower opening 401 of the lower waterproof box 40.

[0055] The reflector 70 is hollow and truncated cone-shaped, and is disposed at the lower opening of the chamber 100 of the outer shell 10. In addition, at least one drainage gap 705 is formed between the reflector 70 and the lower opening of the chamber 100 of the outer shell 10.

[0056] Please refer to further Figure 5 The second embodiment of the waterproof and dustproof downlight of the present invention is substantially similar to the first embodiment, and also includes an outer shell 10, an upper shell cover 20, an upper waterproof box 30, a lower waterproof box 40, a power supply circuit assembly 50, a light source assembly 60 and a reflector 70.

[0057] The outer shell tube 10 is formed with a chamber 100, and the chamber 100 has an upper opening and a lower opening, and a partition 15 is transversely arranged in the chamber 100. At least one drainage hole 150 is formed through the annular periphery of the partition 15. The upper shell cover 20 is arranged in the upper opening of the chamber 100 of the outer shell tube 10. In addition, a power line 25 is arranged through the upper shell cover 20. The upper waterproof box 30 is hollow and arranged on the top surface of the partition 15, and an upper cavity 300 is formed at the bottom of the upper waterproof box 30, and an upper waterproof gasket 35 is arranged on the annular periphery of the bottom of the upper waterproof box 30. The upper waterproof gasket 35 is in close contact with the top surface of the partition 15 and the annular periphery of the bottom of the upper waterproof box 30, and seals the upper cavity 300. The lower waterproof box 40 is hollow and is arranged on the bottom surface of the partition 15. A lower cavity 400 is formed on the top of the lower waterproof box 40. A lower waterproof gasket 45 is arranged on the annular circumference of the top of the lower waterproof box 40. The lower waterproof gasket 45 contacts the bottom surface of the partition 15 and the annular circumference of the top of the lower waterproof box 40 in a sealed manner and seals the lower cavity 400. A lower opening 401 connected to the lower cavity 400 is formed on the bottom end of the lower waterproof box 40. The power supply circuit assembly 50 is arranged in the upper cavity 300 of the upper waterproof box 30 and can be a power supply. In addition, the power supply circuit assembly 50 is connected to the power line 25. The light source assembly 60 is fixed on the bottom surface of the partition 15, arranged in the lower cavity 400 of the lower waterproof box 40, and electrically connected to the power supply circuit assembly 50. The light source assembly 60 includes a light emitting unit 62, a connecting ring 61, a reflective cup 63, a light diffusion plate 64, at least one fixing plate 65, and a fixing ring 66. The light emitting unit 62 is disposed on the bottom surface of the partition 15 and can be a light emitting diode module. The connecting ring 61 is disposed on the bottom surface of the partition 15 and allows the light emitting unit 62 to be interposed between the partition 15 and the connecting ring 61. The reflective cup 63 is hollow and truncated cone-shaped, disposed on the connecting ring 61 and its lower end is aligned with the lower opening 401 of the lower waterproof box 40. The light diffusion plate 64 is disposed at the lower end of the reflective cup 63. The at least one fixing plate 65 is snapped on the lower end of the reflective cup 63 and fixed on the light diffusion plate 64, thereby combining the reflective cup 63 and the light diffusion plate 64. In addition, in the first embodiment of the present invention, the number of the at least one fixing plate 65 is two, and the two fixing plates 65 are semi-annular and are disposed in a relative manner. The fixing ring 66 is sleeved on the annular edge of the light diffusion plate 64 and abuts against the inner annular circumference of the lower opening 401 of the lower waterproof box 40 .The reflector 70 is hollow and truncated cone-shaped, and is disposed at the lower opening of the chamber 100 of the outer shell 10. In addition, at least one drainage gap 705 is formed between the reflector 70 and the lower opening of the chamber 100 of the outer shell 10.

[0058] The difference of the second embodiment is that the number of the fixing piece 65a is one and the fixing piece 65a is ring-shaped.

[0059] Please refer to further Figure 6 The third embodiment of the waterproof and dustproof downlight of the present invention is substantially similar to the first embodiment, and also includes an outer shell 10, an upper shell cover 20, an upper waterproof box 30, a lower waterproof box 40, a power supply circuit assembly 50, a light source assembly 60 and a reflector 70.

[0060] The outer shell tube 10 is formed with a chamber 100, and the chamber 100 has an upper opening and a lower opening, and a partition 15 is transversely arranged in the chamber 100. At least one drainage hole 150 is formed through the annular periphery of the partition 15. The upper shell cover 20 is arranged in the upper opening of the chamber 100 of the outer shell tube 10. In addition, a power line 25 is arranged through the upper shell cover 20. The upper waterproof box 30 is hollow and arranged on the top surface of the partition 15, and an upper cavity 300 is formed at the bottom of the upper waterproof box 30, and an upper waterproof gasket 35 is arranged on the annular periphery of the bottom of the upper waterproof box 30. The upper waterproof gasket 35 is in close contact with the top surface of the partition 15 and the annular periphery of the bottom of the upper waterproof box 30, and seals the upper cavity 300. The lower waterproof box 40 is hollow and is arranged on the bottom surface of the partition 15. A lower cavity 400 is formed on the top of the lower waterproof box 40. A lower waterproof gasket 45 is arranged on the annular circumference of the top of the lower waterproof box 40. The lower waterproof gasket 45 contacts the bottom surface of the partition 15 and the annular circumference of the top of the lower waterproof box 40 in a sealed manner and seals the lower cavity 400. A lower opening 401 connected to the lower cavity 400 is formed on the bottom end of the lower waterproof box 40. The power supply circuit assembly 50 is arranged in the upper cavity 300 of the upper waterproof box 30 and can be a power supply. In addition, the power supply circuit assembly 50 is connected to the power line 25. The light source assembly 60 is fixed on the bottom surface of the partition 15, arranged in the lower cavity 400 of the lower waterproof box 40, and electrically connected to the power supply circuit assembly 50. The light source assembly 60 includes a light emitting unit 62, a connecting ring 61, a reflective cup 63, a light diffusion plate 64, at least one fixing plate 65, and a fixing ring 66. The light emitting unit 62 is disposed on the bottom surface of the partition 15 and can be a light emitting diode module. The connecting ring 61 is disposed on the bottom surface of the partition 15 and allows the light emitting unit 62 to be interposed between the partition 15 and the connecting ring 61. The reflective cup 63 is hollow and truncated cone-shaped, disposed on the connecting ring 61 and its lower end is aligned with the lower opening 401 of the lower waterproof box 40. The light diffusion plate 64 is disposed at the lower end of the reflective cup 63. The at least one fixing plate 65 is snapped on the lower end of the reflective cup 63 and fixed on the light diffusion plate 64, thereby combining the reflective cup 63 and the light diffusion plate 64. In addition, in the first embodiment of the present invention, the number of the at least one fixing plate 65 is two, and the two fixing plates 65 are semi-annular and are disposed in a relative manner. The fixing ring 66 is sleeved on the annular edge of the light diffusion plate 64 and abuts against the inner annular circumference of the lower opening 401 of the lower waterproof box 40 .The reflector 70 is hollow and truncated cone-shaped, and is disposed at the lower opening of the chamber 100 of the outer shell 10. In addition, at least one drainage gap 705 is formed between the reflector 70 and the lower opening of the chamber 100 of the outer shell 10.

[0061] The difference of the third embodiment is that the number of the fixing plates 65b is three, the fixing plates 65b are in a one-third ring shape and are arranged at equal intervals.

[0062] Please refer to further Figure 7 The fourth embodiment of the waterproof and dustproof downlight of the present invention is substantially similar to the first embodiment, and also includes an outer shell 10, an upper shell cover 20, an upper waterproof box 30, a lower waterproof box 40, a power supply circuit assembly 50, a light source assembly 60 and a reflector 70.

[0063] The outer shell tube 10 is formed with a chamber 100, and the chamber 100 has an upper opening and a lower opening, and a partition 15 is transversely arranged in the chamber 100. At least one drainage hole 150 is formed through the annular periphery of the partition 15. The upper shell cover 20 is arranged in the upper opening of the chamber 100 of the outer shell tube 10. In addition, a power line 25 is arranged through the upper shell cover 20. The upper waterproof box 30 is hollow and arranged on the top surface of the partition 15, and an upper cavity 300 is formed at the bottom of the upper waterproof box 30, and an upper waterproof gasket 35 is arranged on the annular periphery of the bottom of the upper waterproof box 30. The upper waterproof gasket 35 is in close contact with the top surface of the partition 15 and the annular periphery of the bottom of the upper waterproof box 30, and seals the upper cavity 300. The lower waterproof box 40 is hollow and is arranged on the bottom surface of the partition 15. A lower cavity 400 is formed on the top of the lower waterproof box 40. A lower waterproof gasket 45 is arranged on the annular circumference of the top of the lower waterproof box 40. The lower waterproof gasket 45 contacts the bottom surface of the partition 15 and the annular circumference of the top of the lower waterproof box 40 in a sealed manner and seals the lower cavity 400. A lower opening 401 connected to the lower cavity 400 is formed on the bottom end of the lower waterproof box 40. The power supply circuit assembly 50 is arranged in the upper cavity 300 of the upper waterproof box 30 and can be a power supply. In addition, the power supply circuit assembly 50 is connected to the power line 25. The light source assembly 60 is fixed on the bottom surface of the partition 15, arranged in the lower cavity 400 of the lower waterproof box 40, and electrically connected to the power supply circuit assembly 50. The light source assembly 60 includes a light emitting unit 62, a connecting ring 61, a reflective cup 63, a light diffusion plate 64, at least a fixing plate 65, and a fixing ring 66. The light emitting unit 62 is disposed on the bottom surface of the partition 15 and can be a light emitting diode module. The connecting ring 61 is disposed on the bottom surface of the partition 15 and allows the light emitting unit 62 to be interposed between the partition 15 and the connecting ring 61. The reflective cup 63 is hollow and truncated cone-shaped, disposed on the connecting ring 61 and its lower end is aligned with the lower opening 401 of the lower waterproof box 40. The light diffusion plate 64 is disposed at the lower end of the reflective cup 63. The at least one fixing plate 65 is snapped on the lower end of the reflective cup 63 and fixed on the light diffusion plate 64, thereby combining the reflective cup 63 and the light diffusion plate 64. In addition, in the first embodiment of the present invention, the number of the at least one fixing plate 65 is two, and the two fixing plates 65 are semi-annular and are disposed in a relative manner. The fixing ring 66 is sleeved on the annular edge of the light diffusion plate 64 and abuts against the inner annular circumference of the lower opening 401 of the lower waterproof box 40 .The reflector 70 is hollow and truncated cone-shaped, and is disposed at the lower opening of the chamber 100 of the outer shell 10. In addition, at least one drainage gap 705 is formed between the reflector 70 and the lower opening of the chamber 100 of the outer shell 10.

[0064] The difference of the fourth embodiment is that the number of the fixing plates 65c is four, and the two fixing plates 65c are in a quarter ring shape and are arranged at equal intervals.

[0065] Through the above technical means, the waterproof and dustproof downlight of the present invention has the following advantages and beneficial technical effects:

[0066] 1. The upper waterproof box 30 and the upper waterproof gasket 35 effectively seal the upper cavity 300 in the upper waterproof box 30, and prevent the power supply circuit component 50 from being accidentally invaded by dust or water vapor and causing a short circuit failure. In addition, the lower waterproof box 40 and the lower waterproof gasket 45 effectively seal the lower cavity 400 of the lower waterproof box 40, and prevent the light source component 60 from being accidentally invaded by dust or water vapor and causing a short circuit failure. In this way, the waterproof and dustproof downlight of the present invention meets the dustproof and waterproof performance standard of Ingress Protection 65 (IP65).

[0067] Second, the drainage holes 150 at the annular periphery of the partition 15 and the drainage gap 705 between the reflector 70 and the lower opening of the housing chamber 100 of the outer shell tube 10 allow the waterproof and dustproof downlight to drain the accumulated water. When water vapor accidentally flows into the housing chamber 100 of the outer shell tube 10 from the gap between the outer shell tube 10 and the upper shell cover 20, the accumulated water can flow downward out of the outer shell tube 10 through the drainage holes 150 and the drainage gap 705. Even if the waterproof and dustproof downlight is placed upside down, the accumulated water can be discharged from the gap between the outer shell tube 10 and the upper shell cover 20 through the drainage holes 150 and the drainage gap 705.

[0068] Although the present invention has been described as much as possible using the above-mentioned embodiments, those familiar with the technical field should be able to make appropriate substitutions or modifications based on the above description. These substitutions or modifications or combinations, including omitting a component or adding a component, should all be within the scope of the present invention.

Claims

1. A waterproof and dustproof downlight, characterized in that: include: An outer shell cylinder has a containing chamber formed therein, the containing chamber having an upper opening and a lower opening, and a partition is transversely arranged in the containing chamber; An upper shell cover is arranged in the upper opening of the housing chamber of the outer shell tube, and a power line is penetrated through the upper shell cover; An upper waterproof box, which is hollow and arranged on the top surface of the partition, and an upper cavity is formed on the bottom of the upper waterproof box, and an upper waterproof gasket is arranged on the annular circumference of the bottom of the upper waterproof box, and the upper waterproof gasket is in close contact with the top surface of the partition and the annular circumference of the bottom of the upper waterproof box and closes the upper cavity; A lower waterproof box, which is hollow and arranged on the bottom surface of the partition, and a lower cavity is formed on the top of the lower waterproof box, a lower waterproof gasket is arranged on the annular circumference of the top of the lower waterproof box, the lower waterproof gasket is in close contact with the bottom surface of the partition and the annular circumference of the top of the lower waterproof box and closes the lower cavity, and a lower opening communicating with the lower cavity is formed on the bottom end of the lower waterproof box; A power supply circuit assembly is disposed in the upper cavity of the upper waterproof box, and the power line is connected to the power supply circuit assembly; and A light source assembly is fixed on the bottom surface of the partition, arranged in the lower cavity of the lower waterproof box, and electrically connected to the power supply circuit assembly; the light source assembly includes a light-emitting unit, a connecting ring, and a reflective cup, the light-emitting unit is arranged on the bottom surface of the partition, the connecting ring is arranged on the bottom surface of the partition and the light-emitting unit is interposed between the partition and the connecting ring, the reflective cup is arranged on the connecting ring and its lower end is aligned with the lower opening of the lower waterproof box.

2. The waterproof and dustproof downlight according to claim 1, characterized in that: The reflective cup is hollow and in a truncated cone shape.

3. The waterproof and dustproof downlight according to claim 2, characterized in that: The light source assembly further includes a light diffuser plate, at least one fixing plate, and a fixing ring. The light diffuser plate is arranged at the lower end of the reflective cup. The at least one fixing plate is snapped onto the lower end of the reflective cup and fixed to the light diffuser plate. The fixing ring is sleeved on the annular edge of the light diffuser plate and abuts against the inner annular circumference of the lower opening of the lower waterproof box.

4. The waterproof and dustproof downlight according to any one of claims 1 to 3, characterized in that: The waterproof and dustproof downlight further comprises a reflector which is hollow and truncated cone-shaped and is arranged at the lower opening of the housing chamber of the outer shell.

5. The waterproof and dustproof downlight according to any one of claims 1 to 3, characterized in that: At least one drainage hole is formed through the annular periphery of the partition.

6. The waterproof and dustproof downlight according to claim 4, characterized in that: At least one drainage gap is formed between the reflector and the lower opening of the housing chamber of the outer shell.

7. The waterproof and dustproof downlight according to any one of claims 1 to 3, characterized in that: The light emitting unit is a light emitting diode module.

8. A waterproof and dustproof downlight, characterized in that: include: An outer shell cylinder has a containing chamber formed therein, the containing chamber having an upper opening and a lower opening, and a partition is transversely arranged in the containing chamber; An upper shell cover is arranged in the upper opening of the housing chamber of the outer shell tube, and a power line is penetrated through the upper shell cover; An upper waterproof box, which is hollow and arranged on the top surface of the partition, and an upper cavity is formed at the bottom of the upper waterproof box; A lower waterproof box, which is hollow and arranged on the bottom surface of the partition, and a lower cavity is formed on the top of the lower waterproof box, a lower waterproof gasket is arranged on the annular circumference of the top of the lower waterproof box, the lower waterproof gasket is in close contact with the bottom surface of the partition and the annular circumference of the top of the lower waterproof box and closes the lower cavity, and a lower opening communicating with the lower cavity is formed on the bottom end of the lower waterproof box; A power supply circuit assembly is disposed in the upper cavity of the upper waterproof box, and the power line is connected to the power supply circuit assembly; and The light source assembly is fixed on the bottom surface of the partition, disposed in the lower cavity of the lower waterproof box, and electrically connected to the power supply circuit assembly.

9. A waterproof and dustproof downlight, characterized in that: include: An outer shell cylinder has a containing chamber formed therein, the containing chamber having an upper opening and a lower opening, and a partition is transversely arranged in the containing chamber; An upper shell cover is arranged in the upper opening of the housing chamber of the outer shell tube, and a power line is penetrated through the upper shell cover; An upper waterproof box, which is hollow and arranged on the top surface of the partition, and an upper cavity is formed on the bottom of the upper waterproof box, and an upper waterproof gasket is arranged on the annular circumference of the bottom of the upper waterproof box, and the upper waterproof gasket is in close contact with the top surface of the partition and the annular circumference of the bottom of the upper waterproof box and closes the upper cavity; A lower waterproof box is hollow and arranged on the bottom surface of the partition, and a lower cavity is formed on the top of the lower waterproof box, and a lower waterproof gasket is arranged on the annular periphery of the top of the lower waterproof box; A power supply circuit assembly is disposed in the upper cavity of the upper waterproof box, and the power line is connected to the power supply circuit assembly; and The light source assembly is fixed on the bottom surface of the partition, disposed in the lower cavity of the lower waterproof box, and electrically connected to the power supply circuit assembly.

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