Lamp ventilation structure, end cover and lamp
By designing a breathable structure for the lamps and using a cover plate to protect the breathable membrane, the problems of loose connections of the breathable valve and easy breakage of the membrane were solved. This achieved stability of waterproof and dustproof performance and improved breathability, while also providing a self-cleaning function and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU NVC OPTOELECTRONICS TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-08-04
AI Technical Summary
The existing ventilation valve connection method of outdoor lighting fixtures is prone to loosening, resulting in poor waterproof and dustproof performance. In addition, the ventilation membrane is easily damaged or blocked by external factors, affecting the pressure difference balance inside and outside the lamp.
Design a luminaire ventilation structure including a main body and a ventilation membrane. The main body has a channel and a support platform. The ventilation membrane is installed on the support platform and covered by a cover plate to form first and second ventilation channels, balance the internal and external pressure difference, and protect the ventilation membrane by the cover plate to prevent damage and blockage.
It effectively prevents damage and blockage of the breathable membrane, ensures the balance of pressure difference between the inside and outside of the lamp, improves waterproof and dustproof effect, reduces production costs, has self-cleaning ability, and improves production efficiency.
Smart Images
Figure CN224593240U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting technology, specifically to a lighting ventilation structure, an end cap having the lighting ventilation structure, and a lighting fixture including the aforementioned lighting ventilation structure or end cap. Background Technology
[0002] Lighting fixtures have become indispensable tools in our lives. For outdoor lighting fixtures, to improve their reliability, their structures are usually designed to be airtight to meet waterproofing requirements. Currently, most outdoor lighting fixtures on the market have a waterproof rating of IP66, meaning they are completely waterproof and dustproof.
[0003] However, due to the sealed design of the lamp structure, a pressure difference arises between the inside and outside of the lamp, causing the lamp to easily draw moisture from the external environment into its interior. To solve this technical problem, such as... Figure 1 and Figure 2 As shown, the current practice is to install a vent valve 92 on the lamp body 91 to balance the internal and external pressure of the lamp. The vent valve 92 is equipped with a breathable membrane that allows air to pass through but prevents water molecules from passing through, thereby ensuring both the internal and external pressure balance of the lamp and improving the reliability of the lamp's waterproof and dustproof capabilities. The existing assembly method of the vent valve 92 and the lamp typically involves setting a mounting hole 911 on the lamp body 91, allowing the connecting part 921 of the vent valve 92 to pass through the mounting hole 911 from the outside of the lamp body 91 and extend into the inside of the lamp body 91. Then, a nut 93 is threadedly connected to the connecting part 921 to fix the vent valve 92 to the lamp body 91, or the connecting part 921 of the vent valve 92 can be directly threaded to the mounting hole 911. However, this connection method requires a multi-component assembly to achieve waterproof and dustproof functionality, requiring the internal and external threads to be fully tightened and the vent valve 92 to fit snugly against the lamp body. Only the lamp body 91 can provide waterproofing, but due to limitations such as thread fit tolerances and fluctuating locking torque of the nut 93, it is difficult to ensure the consistency of thread engagement tightness in batches. Furthermore, different materials shrink and are damaged to varying degrees under the influence of outdoor wind, rain, high and low temperatures, which can also lead to loosening of the thread engagement. In addition, there are always action and reaction forces between the internal and external threads. As the components age, the meshing threads are prone to breakage, which will eventually cause the vent valve 92 to fail to fit tightly with the lamp body 91, resulting in the failure of the lamp's waterproofing and damage to the lamp.
[0004] Therefore, such as Figure 3 and Figure 4As shown, another existing method for waterproofing and dustproofing lamps involves creating vent holes 941 on the lamp body 94, and then using adhesive 95 to bond and fix a breathable membrane 96 to the lamp body 94 at the vent holes 941, so that the breathable membrane 96 covers the vent holes 941 to achieve waterproofing and dustproofing. However, because the breathable membrane 96 is exposed and is relatively thin and fragile, it is easily affected by external factors (such as rain, insect scratches, etc.) and may break, causing the lamp to fail in waterproofing and dustproofing. Furthermore, the exposed nature of the breathable membrane 96 makes it easy for it to come into direct contact with dust, causing the vent holes on the breathable membrane 96 to become blocked, affecting its ventilation effect and creating a pressure difference between the inside and outside of the lamp. Summary of the Invention
[0005] To address the aforementioned problems, the primary objective of this invention is to provide a lamp ventilation structure that can protect the breathable membrane, maintain breathability over a long period, has low production costs, and helps improve production efficiency.
[0006] The second objective of this utility model is to provide an end cap having the above-mentioned ventilation structure for lamps.
[0007] The third objective of this utility model is to provide a lamp with the above-mentioned ventilated structure or including the above-mentioned end cap.
[0008] To achieve the first objective of this utility model, this utility model provides a ventilated structure for a lamp, including a main body and a ventilated membrane. The main body has a channel that runs through it, and a support platform is provided inside the channel. The support platform has an air vent that runs through it. The ventilated membrane is installed on the support platform and covers the air vent. The ventilated structure for the lamp also includes a cover plate that is connected to the main body. The cover plate is located outside the ventilated membrane and covers the ventilated membrane. A first ventilated channel is formed between the cover plate and the channel, and a second ventilated channel is formed between the cover plate and the support platform. The ventilated membrane can balance the pressure difference between the inside and outside of the main body through the first ventilated channel and the second ventilated channel.
[0009] As can be seen above, the first and second vents allow air to enter and exit the main body through the breathable membrane, balancing the pressure difference between the inside and outside of the main body and preventing moisture from the external environment from being drawn into the main body. The cover plate is used to cover and protect the breathable membrane, preventing damage to the breathable membrane caused by external foreign objects or water impacts. It also plays a certain role in dust prevention, avoiding dust contamination that could clog the pores, ensuring the breathability of the breathable membrane, and preventing pressure differences between the inside and outside of the main body.
[0010] In a preferred embodiment, the extension of the line connecting the outer edge of the channel at the first vent and the inner edge of the cover plate at the first vent is located on the support platform.
[0011] As can be seen from the above, even if water or foreign objects enter the channel through the first and second vents, the above design can prevent water or foreign objects from directly hitting the breathable membrane, thus protecting the breathable membrane and preventing it from being damaged by external forces.
[0012] A further option is to form a protrusion on the inner side of the cover plate that protrudes towards the support platform, with the protrusion located at the edge of the cover plate near the first vent.
[0013] As can be seen above, increasing the protrusion on the inner side of the cover plate near the edge of the first vent can, while ensuring that water and foreign objects cannot directly hit the vent membrane, better reduce the overall thickness and weight of the cover plate, reduce the material used for the cover plate, reduce the weight of the vent structure of the lamp, and save production costs.
[0014] Another preferred embodiment is that the first edge of the breathable membrane is located outside the second edge of the air vent, and the vertical distance between the first edge and the second edge is greater than or equal to 1 mm; the width of the first air vent is between 1 mm and 2 mm.
[0015] As can be seen from the above, the relative position design of the breathable membrane and the air vent ensures the firmness of the breathable membrane fixed to the support platform, and also ensures that the breathable membrane forms an effective seal with the support platform around the air vent, thereby ensuring the waterproof and dustproof effect of the lamp's breathable structure. The width design of the first air vent can better prevent water and foreign objects from directly hitting the breathable membrane, and at the same time prevent most insects from entering the channel and tearing the breathable membrane, thus providing better protection for the breathable membrane.
[0016] Another preferred solution is to heat-melt the breathable membrane to the support platform; or weld the breathable membrane to the support platform; or adhesively fix the breathable membrane to the support platform.
[0017] As can be seen from the above, there are many ways to fix the breathable membrane and the support platform, which allows for flexible selection based on factors such as the material of the components, production requirements, usage requirements, and production costs, thereby improving the flexibility of manufacturing the ventilation structure of the lamp.
[0018] A further option is to have the breathable membrane located inside the support platform, with the cover plate integrally formed with the main body; or to have the breathable membrane located outside the support platform, with the cover plate welded and fixed to the main body.
[0019] As can be seen from the above, placing the breathable membrane inside the support platform simplifies the connection between the main body and the cover plate, making the production of the lamp's breathable structure simpler and more convenient. On the other hand, placing the breathable membrane outside the support platform and making the cover plate and the main body separate, and then welding the cover plate and the main body together, can better avoid interference between the breathable membrane and the internal structure of the lamp, thereby preventing the breathable membrane from being punctured by other structures of the lamp and causing the lamp's waterproof and dustproof effects to fail.
[0020] A further proposed solution is that, when the breathable membrane is located outside the support platform, the support platform has a base and a stepped portion, with the stepped portion protruding from the base towards the cover plate. The breathable membrane is installed on the outside of the stepped portion, and a second air passage is formed between the cover plate, the support platform, and the breathable membrane. The extension line of the line connecting the outer edge of the passage at the first air passage and the inner edge of the cover plate at the first air passage is located on the outer side of the base or the outer peripheral surface of the stepped portion.
[0021] As can be seen from the above, by setting the stepped part, when the breathable membrane is installed on the outside of the support platform, it is better to prevent water, foreign objects and other objects from directly hitting the breathable membrane, thus providing better protection for the breathable membrane.
[0022] A further proposed solution is that the common surface of the first vent, the second vent, and the inner circumferential surface of the channel is inclined, and the common surface extends inclinedly from the supporting platform toward the outer opening of the channel and toward the cover plate; and / or the number of the first vent and the second vent are both more than two, the more than two first vents are distributed along the circumference of the channel, and the more than two second vents correspond one-to-one with the more than two first vents.
[0023] As can be seen from the above, this design allows water entering the channel to flow out through the first and second vents when the breathable membrane is installed vertically, thereby preventing water accumulation in the channel. At the same time, it also allows dust adhering to the breathable membrane to be sent out of the channel along with the accumulated water, keeping the first and second vents unobstructed and giving the lamp's breathable structure a certain degree of self-cleaning ability.
[0024] To achieve the second objective of this utility model, this utility model provides an end cap, which includes the above-mentioned lamp ventilation structure, and the main body is the end cap body.
[0025] As can be seen from the above, the end cap, by setting the above-mentioned ventilation structure of the lamp, can balance the pressure difference between the inside and outside of the lamp body, and ensure the waterproof and dustproof effect of the lamp.
[0026] To achieve the third objective of this utility model, this utility model provides a lamp, which includes the above-mentioned lamp ventilation structure and the main body is the lamp body; or the lamp includes the lamp body and the above-mentioned end cap, with the end cap installed on the lamp body.
[0027] As can be seen from the above, by setting the above-mentioned ventilation structure or end cap, the lamp can balance the pressure difference between the inside and outside of the lamp body, thus ensuring the waterproof and dustproof effect of the lamp. Attached Figure Description
[0028] Figure 1 This is a structural diagram of an existing lighting fixture with a vent valve installed, omitting some components.
[0029] Figure 2 This is a cross-sectional view of an existing lighting fixture with an omitted portion of the vent valve assembly.
[0030] Figure 3 This is an exploded view of an existing lighting fixture with a breathable membrane component omitted.
[0031] Figure 4 This is a structural diagram of an existing lighting fixture with some components omitted after the breathable membrane has been installed.
[0032] Figure 5 This is a structural diagram from a first-view perspective of the first embodiment of the end cap of this utility model.
[0033] Figure 6 This is a structural diagram of the first embodiment of the end cap of this utility model from a second perspective.
[0034] Figure 7 This is a cross-sectional view of the first embodiment of the end cap of this utility model.
[0035] Figure 8 This is a structural diagram of the first and second vents of the end cap of this utility model when they are symmetrically arranged.
[0036] Figure 9 This is a cross-sectional view of the first and second vents of the end cap of this utility model when they are symmetrically arranged.
[0037] Figure 10 This is a structural diagram of the second embodiment of the end cap of this utility model.
[0038] Figure 11 This is an exploded view of the second embodiment of the end cap of this utility model.
[0039] Figure 12 This is a cross-sectional view from a first perspective of the second embodiment of the end cap of this utility model.
[0040] Figure 13 This is a cross-sectional view from a second perspective of the second embodiment of the end cap of this utility model.
[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation
[0042] First embodiment of end cap
[0043] Reference Figures 5 to 7 This embodiment uses the direct application of the lamp ventilation structure to the end cap 100 of the lamp as an example to provide an auxiliary explanation of the lamp ventilation structure. The end cap 100 is provided with a lamp ventilation structure, which includes a main body 1. In this embodiment, the main body 1 of the lamp ventilation structure is the body of the end cap 100.
[0044] The main body 1 (i.e. the body of the end cap 100, which will not be described again below) is provided with a channel 11, which passes through the body and allows the channel 11 to connect the inside and outside of the main body 1. The inside of the main body 1 refers to the side of the main body 1 facing the lamp body after the end cap 100 is installed on the lamp body of the lamp, and the outside of the main body 1 refers to the side of the main body 1 facing away from the lamp body after the end cap 100 is installed on the lamp body of the lamp. The meanings of inside and outside as mentioned below are the same.
[0045] A support platform 12 is provided inside the channel 11, and an air vent 121 is provided on the support platform 12. The air vent 121 passes through the support platform 12 along the through direction of the channel 11, so that the air vent 121 can connect the inside and outside of the main body 1, so that gas can circulate between the inside of the lamp body and the external environment. A breathable membrane 13 is installed on the support platform 12 and covers the air vent 121 to achieve waterproof and breathable conditions at the air vent 121.
[0046] The cover plate 14 is connected to the main body 1 and is located on the outside of the breathable membrane 13 to cover and protect the breathable membrane 13, preventing water, foreign objects, etc. from the external environment from hitting the breathable membrane 13 and causing it to break. Because the breathable membrane 13 is relatively thin, usually around 0.2 mm, it is very easy to break without the protection of the cover plate 14. For example, during typhoon weather, rainwater or foreign objects carried by the wind can easily hit the breathable membrane 13 and cause it to break. Similarly, when cleaning the lamps with a high-pressure water gun, if the water jet from the high-pressure water gun hits the breathable membrane 13, it can easily be punctured, ultimately causing the lamps to lose their waterproof and dustproof effect. In addition, the cover plate 14 can also play a certain role in dust prevention, so as to prevent excessive dust from adhering to the outside of the breathable membrane 13 and causing the pores of the breathable membrane 13 to be blocked, thereby ensuring the breathability of the breathable membrane 13 and preventing pressure difference between the inside and outside of the main body 1.
[0047] After the cover plate 14 is installed on the main body 1, a first ventilator 15 is formed between the cover plate 14 and the channel 11, and a second ventilator 16 is formed between the cover plate 14 and the support platform 12. This allows the breathable membrane 13 to balance the pressure difference between the inside and outside of the main body 1 through the first ventilator 15 and the second ventilator 16, and moisture from the external environment is drawn into the main body 1.
[0048] The breathable membrane 13 is preferably fixedly connected to the supporting platform 12 by heat fusion. However, it is understood that the fixing method between the breathable membrane 13 and the supporting platform 12 is not limited to this. For example, the breathable membrane 13 and the supporting platform 12 can also be fixed by welding, such as ultrasonic welding or laser welding, depending on the material and thickness of the breathable membrane 13 and the material of the main body 1. Alternatively, the breathable membrane 13 can also be fixed to the supporting platform 12 by adhesive. However, this method is prone to adhesive failure due to environmental factors (such as temperature and humidity), which in turn leads to the failure of the waterproof and dustproof effect of the breathable membrane 13. Therefore, adhesive fixing is not the preferred method. It can be seen that there are multiple fixing methods between the breathable membrane 13 and the supporting platform 12, allowing for flexible selection based on factors such as the material of the components, production requirements, usage requirements, and production costs, thus improving the flexibility of the lamp's breathable structure manufacturing.
[0049] In this embodiment, the breathable membrane 13 is located inside the support platform 12. Based on this, the cover plate 14 can be integrally formed with the main body 1. Since the breathable membrane 13 is located inside the support platform 12, there is no need to consider whether the setting of the cover plate 14 will affect the installation of the breathable membrane 13. Therefore, the cover plate 14 can be integrally injection molded with the main body 1, thereby simplifying the connection method between the main body 1 and the cover plate 14, making production more convenient and simple.
[0050] More preferably, such as Figure 6 As shown, the first edge of the breathable membrane 13 is located outside the second edge of the air vent 121, and the vertical distance H between the first edge of the breathable membrane 13 and the second edge of the air vent 121 is greater than or equal to 1 mm. This design ensures the firmness of the breathable membrane 13 fixed to the support platform 12 on the one hand, and on the other hand, it ensures that the breathable membrane 13 forms an effective seal with the support platform 12 around the air vent 121, thereby ensuring the waterproof and dustproof effect of the lamp's breathable structure.
[0051] In addition, such as Figure 7 As shown, the relative positions of the channel 11 and the cover plate 14 are designed as follows: the extension line L of the line connecting the outer edge of the channel 11 at the first vent 15 and the inner edge of the cover plate 14 at the first vent 15 is located on the support platform 12. In this way, even if water or foreign objects enter the first vent 15 and the second vent 16, this design can ensure that water or foreign objects will not directly hit the breathable membrane 13. This ensures that even in typhoon days or when using a high-pressure water gun to clean the lamps, the breathable membrane 13 will not be punctured, thus protecting the breathable membrane 13 and preventing it from being damaged by external forces.
[0052] Furthermore, a protrusion 141 can be provided on the inner side of the cover plate 14. The protrusion 141 protrudes from the inner side of the cover plate 14 toward the support platform 12, and the protrusion 141 is located at the edge of the cover plate 14 near the first vent 15. The protrusion 141 can act as a wall, better preventing external foreign objects and water from directly hitting the breathable membrane 13, reducing the risk of damage to the breathable membrane 13. At the same time, the protrusion 141 can reduce the overall thickness and weight of the cover plate 14, thereby reducing the material used in the cover plate 14, reducing the weight of the end cap 100, and saving production costs.
[0053] Furthermore, the width W of the first ventilation channel 15 is controlled to be between 1 mm and 2 mm to better prevent water, foreign objects, etc. from directly hitting the ventilation membrane 13, and at the same time to prevent most insects from entering the channel 11 and tearing the ventilation membrane 13, so as to better protect the ventilation membrane 13.
[0054] In this embodiment, there are two first air vents 15 and two second air vents 16. The two first air vents 15 are distributed circumferentially along the channel 11, and the two second air vents 16 correspond one-to-one with the two first air vents 15. It is understood that in other embodiments, the number of first air vents 15 and two second air vents 16 may be one or more.
[0055] In addition, the first vent 15 and the second vent 16 can also serve as drainage channels 11. When external moisture enters the channel 11 and reaches the outside of the breathable membrane 13, the water in the channel 11 can be discharged from the main body 1 through the first vent 15 and the second vent 16. Simultaneously, dust attached to the breathable membrane 13 is carried out of the main body 1 by the water in the channel 11, thus giving the lamp's ventilated structure a certain self-cleaning ability. For example, a semi-sealed space is formed between the main body 1 and the breathable membrane 13. When subjected to high-pressure water jet washing or heavy rain, water will accumulate in this semi-sealed space. This water can then be discharged from the main body 1 through the first vent 15 and the second vent 16. This can be achieved by placing at least one first vent 15 and one second vent 16 at the bottom of the channel 11. Figure 7 As shown, when the end cap 100 is in the installation and use state along with the lamp, a first vent 15 and a second vent 16 are located at the bottom of the channel 11, so that the water accumulated in the semi-enclosed space can be discharged from the main body 1 through the first vent 15 and the second vent 16. In addition, after long-term use, a certain amount of adhering substances (such as dust) will also accumulate in the semi-enclosed space. When the adhering substances adhere to the breathable membrane 13 to a certain amount, it will cause the pores of the breathable membrane 13 to be blocked. The drainage function of the first vent 15 and the second vent 16 can clean the dust, thereby avoiding the failure of the breathable membrane 13 and the lamp's inability to balance the internal and external pressure difference.
[0056] It should be noted that, for example, when there are two first air vents 15 and two second air vents 16, the two first air vents 15 can be arranged asymmetrically, and the arrangement of the second air vents 16 is similar (e.g., Figure 5 (As shown); of course, the two first air vents 15 can be arranged symmetrically, and the arrangement of the second air vent 16 is similar (as shown). Figure 8 and Figure 9 (As shown). Furthermore, the dimensions of the first air duct 15 and the second air duct 16 can be appropriately lengthened (e.g., Figure 8 , Figure 9 As shown, comparison Figure 5 (First air passage 15 and second air passage 16).
[0057] Furthermore, the common surface 111 of the first vent 15, the second vent 16, and the inner circumferential surface of the channel 11 is inclined, and this common surface 111 extends inclinedly from the support platform 12 toward the outer opening of the channel 11 and toward the cover plate 14. This design helps to more thoroughly drain water from the main body 1 in the aforementioned semi-enclosed space.
[0058] In summary, the design of the lamp's ventilated structure reduces the impact of assembly processes and incoming material dimensions on waterproof performance, ensuring the reliability of mass production. It also minimizes the impact of environmental changes and material embrittlement on the lamp's waterproof performance. Furthermore, the ventilated structure possesses a certain self-cleaning ability, preventing the accumulation of sediment on the surface of the breathable membrane 13, ensuring its breathability efficiency, and reducing the number of assembly parts, thus improving production efficiency. The end cap 100, by incorporating this ventilated structure, balances the pressure difference between the inside and outside of the lamp body, ensuring the lamp's waterproof and dustproof performance.
[0059] Second embodiment of end cap
[0060] Refer to his 10 to Figure 13 The difference between this embodiment and the first embodiment of the end cap lies in the installation position of the breathable membrane 13, the structure of the support platform 12, and the connection method between the cover plate 14 and the main body 1. Specifically, in this embodiment:
[0061] The breathable membrane 13 is located on the outside of the support platform 12. To accommodate the installation position of the breathable membrane 13, the cover plate 14 is no longer integrally formed with the main body 1. Instead, the cover plate 14 and the main body 1 are designed as separate structures. After the breathable membrane 13 is fixedly assembled to the outside of the support platform 12, the cover plate 14 is then welded to the main body 1, so that the cover plate 14 covers the outside of the breathable membrane 13 to protect it. This design can better avoid interference between the breathable membrane 13 and the internal structure of the lamp (such as the lamp body, components inside the lamp body, or components inside the end cap), thereby preventing the breathable membrane 13 from being punctured by other structures of the lamp, which would cause the lamp's waterproof and dustproof effect to fail.
[0062] Furthermore, in this embodiment, the protrusion design on the cover plate 14 can be omitted; simultaneously, the support platform 12 can be designed as follows: the support platform 12 has a base 122 and a step portion 123, with the step portion 123 protruding from the base 122 toward the cover plate 14 in the penetrating direction of the channel 11. The breathable membrane 13 is installed on the outside of the step portion 123, and a second ventilation channel 16 is formed between the cover plate 14, the support platform 12, and the breathable membrane 13. The extension line L of the line connecting the outer edge of the channel 11 at the first ventilation channel 15 and the inner edge of the cover plate 14 at the first ventilation channel 15 is located on the outer surface of the base 122 or the outer peripheral surface of the step portion 123. Similarly, by providing the step portion 123, when the breathable membrane 13 is installed on the outside of the support platform, it better prevents water, foreign objects, etc., from directly impacting the breathable membrane 13, thereby providing better protection for the breathable membrane 13.
[0063] Lighting Fixture Examples
[0064] The luminaire includes a lamp body. In some embodiments, the luminaire further includes the end cap described in the first or second embodiment of the above-mentioned end cap, which is installed at the end of the lamp body. In other embodiments, the luminaire directly provides the luminaire venting structure described in the first or second embodiment of the above-mentioned end cap. It can be understood that the main body of the luminaire venting structure in this case is the lamp body, and the luminaire venting structure is consistent with the luminaire venting structure described in the first or second embodiment of the end cap. By providing the above-mentioned luminaire venting structure or end cap, the luminaire can balance the pressure difference between the inside and outside of the lamp body, ensuring the waterproof and dustproof effect of the luminaire.
[0065] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A ventilated structure for a lamp, comprising a main body and a ventilated membrane, characterized in that: The main body has a channel that runs through the main body, and a support platform is provided inside the channel. The support platform has an air vent that runs through it, and the breathable membrane is installed on the support platform and seals the air vent. The ventilation structure of the lamp also includes a cover plate, which is connected to the main body. The cover plate is located outside the ventilation membrane and covers the ventilation membrane. A first ventilation channel is formed between the cover plate and the channel, and a second ventilation channel is formed between the cover plate and the support platform. The ventilation membrane can balance the pressure difference between the inside and outside of the main body through the first ventilation channel and the second ventilation channel.
2. The ventilated structure of the lamp according to claim 1, characterized in that: The extension of the line connecting the outer edge of the channel at the first vent and the inner edge of the cover at the first vent lies on the support platform.
3. The ventilated structure of the lamp according to claim 2, characterized in that: The inner side of the cover plate has a protrusion that protrudes toward the support platform, and the protrusion is located at the edge of the cover plate near the first vent.
4. The ventilated structure of the lamp according to claim 1, characterized in that: The first edge of the breathable membrane is located outside the second edge of the air vent, and the vertical distance between the first edge and the second edge is greater than or equal to 1 mm; The width of the first vent is between 1 mm and 2 mm.
5. The ventilated structure of the lamp according to claim 1, characterized in that: The breathable membrane is thermally fused to the support platform; or The breathable membrane is welded and fixed to the support platform; or The breathable membrane is bonded and fixed to the support platform.
6. The ventilated structure for a lamp according to any one of claims 1 to 5, characterized in that: The breathable membrane is located inside the support platform, and the cover plate is integrally formed with the main body; or The breathable membrane is located on the outside of the support platform, and the cover plate is welded and fixed to the main body.
7. The ventilated structure of the lamp according to claim 6, characterized in that: When the breathable membrane is located outside the support platform, the support platform has a base and a stepped portion, the stepped portion protrudes from the base toward the cover plate, the breathable membrane is installed on the outside of the stepped portion, and the cover plate, the support platform, and the breathable membrane form a second air passage; The extension of the line connecting the outer edge of the channel at the first vent and the inner edge of the cover plate at the first vent is located on the outer side of the base or the outer peripheral surface of the step.
8. The ventilated structure for a lamp according to claim 6, characterized in that: The first vent, the second vent, and the inner circumferential surface of the channel share an inclined surface, and the common surface extends inclinedly from the support platform toward the outer opening of the channel and toward the cover plate; and / or The number of first air vents and second air vents are both two or more, the two or more first air vents are distributed circumferentially along the channel, and the two or more second air vents correspond one-to-one with the two or more first air vents.
9. An end cap, characterized in that, Includes the luminaire ventilation structure as described in any one of claims 1 to 8, wherein the main body is the body of the end cap.
10. A luminaire, characterized in that, include: The ventilated structure of the lamp as described in any one of claims 1 to 8, wherein the main body is the lamp body of the lamp; or The lamp includes the lamp body and the end cap as described in claim 9, the end cap being mounted on the lamp body.