Lamp sealing structure

Abstract

The present application discloses a lamp sealing structure, comprising a sealing groove, a sealing ring, and a pressing frame. The sealing groove is formed on a lamp housing, the sealing ring is arranged in the sealing groove, and the pressing frame is arranged on the side of the sealing ring distant from the lamp housing and is used for pressing the sealing ring into the sealing groove. A cover plate covers the lamp housing, the inner side end of the sealing ring facing the cover plate is provided with a slot, and the peripheral side of the cover plate is inserted into the slot. In the present application, the inner side end of the sealing ring facing the cover plate is provided with the slot, and the peripheral side of the cover plate is inserted into the slot. Since the pressing frame presses the sealing ring into the sealing groove, the sealing ring tends to deform under the pressing of the pressing frame, thereby forcing the slot walls and the slot bottom of the slot to be all tightly attached to the cover plate to enhance a sealing effect. Meanwhile, since the cover plate is inserted into the slot, the sealing effect is undoubtedly better than a configuration in which only the side wall of the cover plate is attached to the sealing ring.

Description

A lamp sealing structure Technical Field

[0001] This application belongs to the field of lighting technology, and in particular relates to a lighting sealing structure. Background Technology

[0002] In the field of lighting technology, luminaire design not only requires excellent lighting performance but also must consider aesthetics, durability, and safety. Waterproofing and sealing are particularly important for luminaires used in outdoor or damp environments. Traditional luminaire designs with glass covers typically achieve waterproofing by adding a sealing ring to the side of the glass. This design usually involves embedding the sealing ring into the gap between the glass and the luminaire frame, then applying pressure to the glass by pressing the frame to ensure the sealing ring is tightened, thus preventing moisture from seeping into the luminaire.

[0003] However, while this structure improves the waterproof performance of luminaires to some extent, it still reveals several shortcomings in practical applications. First, due to aging and wear of the sealing ring material or improper installation, the sealing effect can gradually weaken over time, increasing the risk of moisture penetration. Second, the contact surface between the pressure frame and the glass plate is often difficult to achieve perfectly flat, resulting in minute gaps. These gaps may widen under temperature changes or vibration conditions, further reducing the reliability of the waterproof seal. Therefore, it is necessary to improve the existing waterproof sealing structure of luminaires with glass covers to enhance their waterproof performance.

[0004] Application content

[0005] To address the aforementioned issues, the purpose of this application is to provide a lamp sealing structure in which the cover plate is inserted into a groove on its periphery, thereby improving the sealing effect.

[0006] To achieve the above objectives, the technical solution of this application is as follows:

[0007] A lamp sealing structure includes a sealing groove, a sealing ring, and a pressure frame. The sealing groove is disposed on the lamp housing, the sealing ring is disposed in the sealing groove, and the pressure frame is disposed on the side of the sealing ring away from the lamp housing and is used to press the sealing ring tightly in the sealing groove.

[0008] The lamp housing is covered with a cover plate, and the sealing ring has a groove on the inner side of the cover plate, with the periphery of the cover plate inserted into the groove.

[0009] According to one embodiment of this application, the pressure frame has an insertion portion on the side facing the sealing ring, and the sealing ring has a slot corresponding to the insertion portion. The insertion portion is inserted into the slot, and the insertion portion and the slot are interference-fitted. The insertion portion presses the sealing ring so that the bottom of the groove is pressed against the peripheral end face of the cover plate.

[0010] According to one embodiment of this application, the width of the slot gradually decreases from the opening to the bottom, and the width of the insertion part gradually decreases from the root to the head away from the pressure frame.

[0011] According to one embodiment of this application, a stepped groove is provided on one side of the sealing groove, and a protrusion is provided on the sealing ring corresponding to the stepped groove, the protrusion being disposed within the stepped groove.

[0012] According to one embodiment of this application, the stepped groove is provided on the side of the sealing groove near the cover plate, the protrusion is provided on the side of the cover plate facing the lamp housing, and the end face of the protrusion facing the cover plate is flush with one side wall of the groove and fits against the cover plate.

[0013] According to one embodiment of this application, the stepped groove is disposed on the groove edge end face inside the sealing groove.

[0014] According to one embodiment of this application, the protrusion is located on one side of the slot.

[0015] According to one embodiment of this application, the inner side of the pressure frame is provided with a flange, the flange protruding towards the cover plate, and the flange is located inside the portion of the sealing ring that protrudes from the cover plate. The flange wraps around the sealing ring that protrudes from the cover plate to cover and / or limit its movement.

[0016] According to one embodiment of this application, the pressure frame is detachably connected to the lamp housing.

[0017] According to one embodiment of this application, the pressure frame and the lamp housing are fixedly connected by screws.

[0018] Because this application adopts the above technical solution, it has the following advantages and positive effects compared with the prior art:

[0019] 1. In this application, the sealing ring has a groove on its inner side facing the cover plate. The cover plate is inserted into the groove. Because the pressure frame presses the sealing ring tightly into the sealing groove, the sealing ring tends to deform under the pressure of the pressure frame, thereby forcing the groove wall and bottom to fit tightly against the cover plate to enhance the sealing effect. At the same time, since the cover plate is inserted into the groove, the sealing effect is undoubtedly better than when only the side wall of the cover plate fits against the sealing ring.

[0020] 2. The bottom end of the pressure frame of this application has a downwardly extending insertion part, and the sealing ring has a slot. The insertion part is inserted into the slot and is interference-fitted with the slot wall, giving the sealing ring a compressive force to both sides, forcing the sealing ring to deform towards both sides of the slot, so that the bottom of the groove fits more tightly with the cover plate, thereby improving the sealing effect. If only the lower end face of the pressure frame is used to compress the upper end face of the sealing ring, then the pressure frame gives the sealing ring a downward force, and the deformation of the sealing ring to both sides is less.

[0021] Furthermore, the width of the slot gradually decreases from the opening to the bottom, and the width of the insertion part gradually decreases from the root to the head away from the pressure frame, making it easy for the insertion part to be inserted into the slot.

[0022] 3. The sealing groove of this application has a stepped groove on one side, and the sealing ring has a raised ring corresponding to the stepped groove. The raised ring is located in the stepped groove. This design creates a complex and tortuous waterproof route between the sealing ring and the wall of the sealing groove, which can further play a waterproof role.

[0023] Furthermore, the protrusion is located on the side of the cover plate facing the lamp housing. The end face of the protrusion facing the cover plate is flush with one side wall of the groove and fits against the cover plate. The fit between the protrusion and the cover plate increases the contact area between the cover plate and the sealing ring, further enhancing the waterproof effect.

[0024] Meanwhile, the protrusion is located on one side of the slot. When the insertion part is inserted into the slot and the sealing ring is squeezed and deformed to both sides, the protrusion can be pressed to fit tightly with the stepped groove to enhance the sealing effect.

[0025] 4. The inner side of the pressure frame of this application is provided with a flange, which protrudes towards the cover plate and is located inside the portion of the sealing ring that protrudes from the cover plate. The flange wraps around the sealing ring protruding from the cover plate to cover and / or limit its movement. The flange, together with the pressure frame, wraps around and covers the portion of the sealing ring exposed above the cover plate, making it more aesthetically pleasing. At the same time, the flange also provides a certain degree of waterproofing. Furthermore, by wrapping the sealing ring exposed above the cover plate with the flange, when the sealing ring deforms and is squeezed to both sides, the pressure frame and flange limit its movement, allowing the sealing ring at this point to better fit and seal tightly against the upper surface of the cover plate, thus improving the waterproofing effect. Attached Figure Description

[0026] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 is a schematic diagram of the entire application;

[0028] Figure 2 is a cross-sectional view of this application;

[0029] Figure 3 is a partial enlarged view of Figure 2 of this application;

[0030] Figure 4 is a frontal view of Figure 3 in this application;

[0031] Figure 5 is a schematic diagram of the sealing ring of this application;

[0032] Figure 6 is a partial enlarged view of Figure 5 of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Lamp housing; 2. Lens; 3. Cover plate; 4. Sealing groove; 5. Step groove; 6. Sealing ring; 7. Groove; 8. Slot; 9. Protrusion; 10. Pressure frame; 11. Insertion part; 12. Flanged edge. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present application will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the illustration of the embodiments of the present application.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Referring to Figures 1 to 6, the core of this application is to provide a lamp sealing structure, which is disposed on the lamp housing 1 and includes a sealing groove 4, a sealing ring 6 and a pressure frame 10. The sealing groove 4 is disposed on the lamp housing 1 and surrounds the lens 2 on the lamp housing 1. The sealing ring 6 is disposed in the sealing groove 4. The pressure frame 10 is disposed on the side of the sealing ring 6 away from the lamp housing 1 and is used to press the sealing ring 6 tightly in the sealing groove 4.

[0037] The lamp housing 1 is provided with a cover plate 3, which covers the lens 2. In this embodiment, the cover plate 3 is a glass plate. Of course, in other embodiments, the cover plate 3 can also be an acrylic plate, etc. This embodiment does not impose any specific restrictions.

[0038] The pressure frame 10 is detachably connected to the lamp housing 1. In this embodiment, the pressure frame 10 and the lamp housing 1 are fixedly connected by screws. Of course, other methods can be used in other embodiments, and this embodiment does not impose specific limitations.

[0039] A groove 7 is provided on the inner end of the sealing ring 6 facing the cover plate 3, and the periphery of the cover plate 3 is inserted into the groove 7. Because the pressure frame 10 presses the sealing ring 6 tightly into the sealing groove 4, the sealing ring 6 tends to deform under the pressure of the pressure frame 10, thus forcing the groove wall and bottom of the groove 7 to be tightly attached to the cover plate 3 to enhance the sealing effect. At the same time, since the cover plate 3 is inserted into the groove 7, the sealing effect is undoubtedly better than if only the side wall of the cover plate 3 is in contact with the sealing ring 6.

[0040] Furthermore, the pressure frame 10 has an insertion part 11 on the side facing the sealing ring 6, and the sealing ring 6 has a corresponding slot 8. The insertion part 11 is inserted into the slot 8, and the insertion part 11 and the slot 8 are press-fitted. The insertion part 11 presses the sealing ring 6 so that the bottom of the groove 7 is pressed tightly against the peripheral end face of the cover plate 3. The insertion part 11 is inserted into the slot 8 and press-fitted against the groove wall of the slot 8, giving the sealing ring 6 a compressive force to both sides, forcing the sealing ring 6 to deform towards both sides of the slot 8, so that the bottom of the groove 7 fits more tightly against the cover plate 3, thereby improving the sealing effect. If only the lower end face of the pressure frame 10 presses the upper end face of the sealing ring 6, then the pressure frame 10 gives the sealing ring 6 a downward force, and the deformation of the sealing ring 6 to both sides is less.

[0041] Furthermore, the width of the slot 8 gradually decreases from the opening to the bottom, and the width of the insertion part 11 gradually decreases from the root to the head away from the pressure frame 10, making it easy for the insertion part 11 to be inserted into the slot 8.

[0042] A stepped groove 5 is provided on one side of the sealing groove 4, and a raised ring 9 is provided on the sealing ring 6 corresponding to the stepped groove 5, with the raised ring 9 located inside the stepped groove 5. This design creates a complex and tortuous waterproof route between the sealing ring 6 and the wall of the sealing groove 4, which can further enhance the waterproofing effect.

[0043] The stepped groove 5 is specifically located on the side of the sealing groove 4 near the cover plate 3, and is located on the inner edge end face of the sealing groove 4. The protrusion 9 is located on the side of the cover plate 3 facing the lamp housing 1, and the end face of the protrusion 9 facing the cover plate 3 is flush with one side wall of the groove 7 and fits against the cover plate 3. The fit between the protrusion 9 and the cover plate 3 increases the contact area between the cover plate 3 and the sealing ring 6, further enhancing the waterproof effect. At the same time, the protrusion 9 is located on one side of the slot 8. When the insertion part 11 is inserted into the slot 8 and the sealing ring 6 is squeezed to deform to both sides, the protrusion 9 can be pressed to fit tightly against the stepped groove 5 to enhance the sealing effect.

[0044] The inner side of the pressure frame 10 is provided with a flange 12, which protrudes towards the cover plate 3 and is located inside the portion of the sealing ring 6 that protrudes from the cover plate 3. The flange 12 wraps around the portion of the sealing ring 6 protruding from the cover plate 3 to cover and / or limit its movement. The flange 12, together with the pressure frame 10, wraps around and covers the portion of the sealing ring 6 exposed above the cover plate 3, making it more aesthetically pleasing. At the same time, the flange 12 also provides a certain degree of waterproofing. Furthermore, by wrapping the sealing ring 6 exposed above the cover plate 3 with the flange 12 and the pressure frame 10, when the sealing ring 6 deforms and is squeezed to both sides, the pressure frame 10 and the flange 12 limit its movement, allowing the sealing ring 6 to better fit tightly against the upper surface of the cover plate 3 for a better waterproofing effect.

[0045] The embodiments of this application have been described in detail above with reference to the accompanying drawings, but this application is not limited to the above embodiments. Even if various changes are made to this application, if these changes fall within the scope of the claims of this application and their equivalents, they shall still fall within the protection scope of this application.

Claims

1. A sealing structure for a lamp, characterized in that, It includes a sealing groove, a sealing ring, and a pressure frame. The sealing groove is disposed on the lamp housing, the sealing ring is disposed in the sealing groove, and the pressure frame is disposed on the side of the sealing ring away from the lamp housing and is used to press the sealing ring tightly in the sealing groove. The lamp housing is covered with a cover plate, and the sealing ring has a groove on the inner side of the cover plate, with the periphery of the cover plate inserted into the groove.

2. The lamp sealing structure according to claim 1, characterized in that, The pressure frame has an insertion part on the side facing the sealing ring, and the sealing ring has a slot corresponding to the insertion part. The insertion part is inserted into the slot and the insertion part is interference-fitted with the slot. The insertion part presses the sealing ring so that the bottom of the groove is pressed tightly against the peripheral end face of the cover plate.

3. The lamp sealing structure according to claim 2, characterized in that, The width of the slot gradually decreases from the opening to the bottom, and the width of the insertion part gradually decreases from the root to the head away from the pressure frame.

4. The lamp sealing structure according to claim 2, characterized in that, A stepped groove is provided on one side of the sealing groove, and a raised ring is provided on the sealing ring corresponding to the stepped groove, with the raised ring located inside the stepped groove.

5. The lamp sealing structure according to claim 4, characterized in that, The stepped groove is located on the side of the sealing groove near the cover plate, and the protrusion is located on the side of the cover plate facing the lamp housing. The end face of the protrusion facing the cover plate is flush with one side wall of the groove and fits against the cover plate.

6. The lamp sealing structure according to claim 5, characterized in that, The stepped groove is located on the groove edge end face inside the sealing groove.

7. The lamp sealing structure according to any one of claims 4 to 6, characterized in that, The protrusion is located on one side of the slot.

8. The lamp sealing structure according to any one of claims 1 to 3, characterized in that, The inner side of the pressure frame is provided with a flange, which protrudes towards the cover plate and is located inside the portion of the sealing ring that protrudes from the cover plate. The flange wraps around the sealing ring that protrudes from the cover plate to cover and / or limit its movement.

9. The lamp sealing structure according to claim 1, characterized in that, The pressure frame is detachably connected to the lamp housing.

10. The lamp sealing structure according to claim 9, characterized in that, The pressure frame and the lamp housing are fixedly connected by screws.

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