Waterproof shell structure and lighting equipment

Abstract

The utility model discloses a waterproof shell structure and lighting equipment, belongs to the technical field of lamps, and comprises a shell and an air storage device, a first vent hole of the shell can communicate a cavity with the outside, a waterproof breathable film is arranged on the first vent hole, and the waterproof breathable film can allow air to pass through and prevent water vapor from invading the cavity. The air storage device on the shell is provided with the air chamber communicated with the outside, when negative pressure is generated in the cavity and the waterproof breathable film is blocked, the air chamber sucks outside air so that the volume occupied by the air storage device in the cavity can be increased, the air pressure in the cavity and the air pressure of the outside can be balanced, and water vapor can be prevented from invading from other waterproof weak points of the shell.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a waterproof housing structure and lighting equipment. Background Technology

[0002] Lighting fixtures are generally waterproof. When the fixture is in operation, the internal temperature of the fixture can reach over 60 degrees Celsius. If the fixture is exposed to rain or a sudden drop in temperature outdoors, the temperature can drop from 60 degrees Celsius to below 30 degrees Celsius in a short period of time. This will create a large negative pressure inside the fixture, drawing in rainwater and damaging the internal electronic components.

[0003] Most lamps on the market are equipped with a breathing valve, which draws in outside air when negative pressure is created inside the lamp cavity to balance the air pressure. However, in rainy or foggy weather, rainwater can easily block the breathing valve, preventing air from being drawn in properly. Moist outside air can then easily penetrate the inside of the lamp cavity through other weak points in its waterproof design. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a waterproof shell structure and lighting equipment to solve the problem that current lamps are susceptible to moisture intrusion when the breathing valve is blocked.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A waterproof outer casing structure includes a casing and a gas storage device;

[0007] The housing has a cavity, and the housing is provided with a first vent hole that connects the cavity to the outside. The first vent hole is covered with a waterproof and breathable membrane.

[0008] The gas storage device is located in the housing, and the gas storage device has a gas chamber that communicates with the outside world. When the cavity generates a negative pressure, the gas chamber draws in gas from the outside world to increase the volume of the gas storage device in the cavity.

[0009] Preferably, it further includes a mounting component, wherein the housing has a mounting hole, and the mounting component passes through the mounting hole;

[0010] The mounting component has mounting chambers and air guide grooves arranged side by side and both connected to the cavity. The air storage device is located in the mounting chamber, and one end of the air guide groove is connected to the first vent hole opened on the mounting component.

[0011] Preferably, the gas storage device is an elastic airbag.

[0012] Preferably, the opening of the air chamber is covered with a cover plate, and the cover plate has a second vent hole communicating with the air chamber.

[0013] Preferably, the mounting component is provided with a second mounting recess, the mounting chamber is connected to the bottom wall of the second mounting recess, and the cover plate is detachably embedded in the second mounting recess.

[0014] Preferably, it further includes a limiting component, the mounting component is provided with a first mounting cavity, one end of the air guide groove passes through the bottom wall of the first mounting cavity, the limiting component is detachably embedded in the first mounting cavity, and the waterproof and breathable membrane is located between the limiting component and the bottom wall of the first mounting cavity.

[0015] Preferably, the mounting component has an extension, the extension has the mounting chamber and the air guide groove, and a sealing ring is fitted on the extension, with one end face of the sealing ring abutting against the end face of the mounting component.

[0016] Preferably, a sealing ring for connecting the housing is provided around the opening of the airbag.

[0017] Preferably, the mounting component is provided with external threads.

[0018] To address the same technical problem, this invention also provides a lighting device including the waterproof housing structure described above.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] The first vent of the shell connects its cavity to the outside. A waterproof and breathable membrane is installed on the first vent. The waterproof and breathable membrane allows air to pass through and prevents water vapor from entering the cavity. The air storage device on the shell is equipped with an air chamber connected to the outside. When the cavity generates negative pressure and the waterproof and breathable membrane is blocked, the air chamber draws in the outside air to increase the volume occupied by the air storage device in the cavity, thereby balancing the air pressure inside the cavity and the air pressure outside, and preventing water vapor from entering from other waterproof weak points of the shell. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the waterproof outer shell of the utility model.

[0022] Figure 2 This is a structural schematic diagram of the mounting components of the waterproof outer shell structure of the utility model;

[0023] Figure 3 A side sectional view of the mounting components of the waterproof outer shell structure of the utility model;

[0024] Figure 4 A schematic diagram of the waterproof and breathable membrane for a utility model waterproof shell structure;

[0025] Figure 5 An exploded view of the waterproof outer shell structure of the utility model;

[0026] Figure 6 This is a schematic diagram of the gas storage device with a waterproof outer shell structure according to Example 2;

[0027] Figure 7 This is a schematic diagram of the structure of a lighting device of the utility model.

[0028] In the diagram: 1. Lighting equipment; 10. Housing; 11. Cavity; 12. Mounting hole; 20. Gas storage device; 21. Gas chamber; 22. Opening; 23. Sealing ring; 24. Fixed sleeve; 25. Movable sleeve; 30. Waterproof and breathable membrane; 40. Mounting component; 40a. Head end; 40b. Tail end; 41. Mounting chamber; 42. Air guide groove; 43. First vent hole; 44. Cover plate; 441. Second vent hole; 45. First mounting recess; 46. Second mounting recess; 47. Extension; 48. Sealing ring; 49. External thread; 50. Limiting component. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Example 1

[0033] Combination Figures 1 to 5 As shown, the waterproof outer shell structure of this utility model is schematically illustrated, including a shell 10 and an air storage device 20.

[0034] like Figure 1 The housing 10 has a hollow structure with a cavity 11. Electronic components required for the product, such as lamps, can be installed inside the cavity 11. A lighting control board and light-emitting elements can also be installed inside the cavity 11. The housing 10 has a first vent 43 connecting the cavity 11 to the outside. The first vent 43 is covered with a waterproof and breathable membrane 30. The waterproof and breathable membrane 30 allows gas to pass through, balancing the air pressure difference between the cavity 11 and the outside, and also blocks rainwater to prevent moisture damage to the electronic components inside the cavity 11. A gas storage device 20 is located within the housing 10. The gas storage device 20 has an air chamber 21 connected to the outside, and part or all of the gas storage device 20 is located within the cavity 11 of the housing 10. A negative pressure is generated in the cavity 11, and the waterproof and breathable membrane 30 is blocked (e.g., by rainwater or foreign objects). This negative pressure causes the air chamber 21 of the air storage device 20 to draw in external air, increasing the volume of the air storage device 20 within the cavity 11. This results in the air pressure inside the cavity 11 approaching or equaling the external air pressure. When the air inside the cavity 11 is heated and expands, it can be released to the outside through the waterproof and breathable membrane 30, or it can push the air storage device 20, causing the air chamber 21 of the air storage device 20 to shrink, and the air chamber 21 to release its internal air to the outside.

[0035] In this embodiment, the air storage device 20 is an elastic airbag, which can be made of rubber. The airbag has an opening 22 communicating with the outside, and the airbag body is located inside the cavity 11. When a negative pressure is generated in the cavity 11 and the waterproof and breathable membrane 30 is blocked, the negative pressure causes the airbag to draw in outside air, inflating the airbag and expanding it inside the cavity 11, so that the air pressure inside the cavity 11 is balanced with the outside air pressure. Since the airbag body is elastic and its material is stretched after inflation, the airbag body has a tendency to contract and recover. After the waterproof and breathable membrane 30 is unobstructed, the airbag contracts and discharges the air in the air chamber 21 to the outside. Outside air passes through the waterproof and breathable membrane 30 and enters the cavity 11, so that the airbag recovers.

[0036] Combination Figure 2 and Figure 3 The waterproof outer shell structure also includes a mounting component 40. The shell 10 has a mounting hole 12 that connects the cavity 11 to the outside. The mounting component 40 passes through the mounting hole 12. The mounting component 40 has a mounting chamber 41 and an air guide groove 42 arranged side by side and both connected to the cavity 11. The mounting component 40 has the aforementioned first vent hole 43. The air storage device 20 is located in the mounting chamber 41. One end of the air guide groove 42 is connected to the first vent hole 43. The mounting component 40 can install the waterproof and breathable membrane 30 and the air storage device 20. Therefore, the product shell 10 only needs to have a mounting hole 12 to mount the mounting component 40 with the waterproof and breathable membrane 30 and the air storage device 20, which improves the structural versatility.

[0037] Specifically, such as Figure 5The mounting component 40 is a rotating structure. A first mounting cavity 45 is provided on one side of the mounting component 40. One end of the air guide groove 42 passes through the bottom wall of the first mounting cavity 45. The limiting component 50 is detachably embedded in the first mounting cavity 45. The waterproof and breathable membrane 30 is located between the limiting component 50 and the bottom wall of the first mounting cavity 45. In other words, the limiting component 50 presses the waterproof and breathable membrane 30 against the bottom wall of the first mounting cavity 45, causing the waterproof and breathable membrane 30 to cover the end of the air guide groove 42. Of course, the limiting component 50 has a clearance structure (such as a hole or groove structure) that allows outside air to flow to the waterproof and breathable membrane 30. The clearance structures vary in shape but have the same function, and will not be described further here.

[0038] Furthermore, a cover plate 44 is detachably provided on the mounting component 40, such as... Figure 3 and Figure 4 A cover plate 44 is provided over the opening 22 of the air chamber 21. The cover plate 44 has a second vent hole 441 communicating with the air chamber 21. The cover plate 44 can prevent foreign objects from entering the air storage device 20. The mounting component 40 also has a second mounting cavity 46. The mounting chamber 41 passes through the bottom wall of the second mounting cavity 46. The cover plate 44 is detachably embedded in the second mounting cavity 46. The second mounting cavity 46 is used to receive and fasten the cover plate 44. The cover plate 44 and the second mounting cavity 46 are interference fit. In this embodiment, a sealing ring 23 is provided around the opening 22 of the airbag (i.e., the air storage device 20). The sealing ring 23 abuts against the bottom wall of the second mounting cavity 46, and the cover plate 44 abuts against the end face of the sealing ring 23. The airbag (i.e., the air storage device 20) is fixed by the cover plate 44 and the second mounting cavity 46. The sealing ring 23 can also prevent outside air from flowing into the cavity 11 through the gap between the outside of the opening 22 of the airbag (i.e., the air storage device 20) and the second mounting cavity 46.

[0039] Combination Figure 2 As shown, the mounting component 40 has a head end 40a and a tail end 40b. The outer contour of the cross-section of the head end 40a of the mounting component 40 is hexagonal, which allows the user to rotate the head end 40a of the mounting component 40 using existing tools such as a wrench. The tail end 40b of the mounting component 40 is provided with an extension 47, on which an external thread 49 is provided. The mounting hole 12 of the housing 10 is provided with an internal thread, and the extension 47 and the mounting hole 12 are connected by the engagement of the external thread 49 and the internal thread. The extension 47 is provided with a mounting chamber 41 and an air guide groove 42. A sealing ring 48 is fitted on the extension 47. One end face of the sealing ring 48 abuts against the end face of the mounting component 40, and the other end face of the sealing ring 48 abuts against the outer wall surface of the housing 10, thereby achieving a waterproof seal between the housing 10 and the mounting component 40.

[0040] Example 2

[0041] like Figure 6The difference between this embodiment and Embodiment 1 is that the gas storage device 20 is a mechanical piston cylinder. Specifically, the piston cylinder includes a fixed sleeve 24 and a movable sleeve 25, both located within the cavity 11. One end of the fixed sleeve 24 extends through the outer wall of the housing 10, exposing the interior of the fixed sleeve 24 to the outside. The movable sleeve 25 slidably passes through the other end of the fixed sleeve 24, and the movable sleeve 25 and the fixed sleeve 24 are coaxially arranged. The end of the movable sleeve 25 away from the fixed sleeve 24 is sealed, so that the axial cross-section of the movable sleeve 25 is U-shaped. The other end of the movable sleeve 25 is connected to the fixed sleeve 24. The space inside the movable sleeve 25 and the space inside the fixed sleeve 24 constitute the gas chamber 21 of the gas storage device 20. When negative pressure is generated in the cavity 11 and the waterproof and breathable membrane 30 is blocked, the negative pressure in the cavity 11 causes the movable sleeve 25 to slide relative to the fixed sleeve 24. The movable sleeve 25 moves into the cavity 11 and occupies the volume inside the cavity 11, so that the air pressure inside the cavity 11 is close to or equal to the external air pressure.

[0042] In addition, an elastic element is provided between the fixed sleeve 24 and the movable sleeve 25. The elastic element can be a spring. Under the elastic force of the elastic element, the movable sleeve 25 has a tendency to retract into the fixed sleeve 24. This allows the gas storage device 20 of this embodiment to have an automatic recovery function similar to the gas storage device 20 (airbag) of Embodiment 1. That is, after the waterproof and breathable membrane 30 resumes ventilation, the movable sleeve 25 can discharge the gas in the air chamber 21 to the outside under the elastic force of the elastic element.

[0043] When the gas storage device 20 of this structure is inflated in its air chamber 21, the range of movement of the gas storage device 20 in the cavity 11 is more controllable than that of the airbag in Embodiment 1. That is, the gas storage device 20 is less likely to collide with other components in the cavity 11 when the air chamber 21 is inflated.

[0044] Example 3

[0045] like Figure 7 This embodiment discloses a lighting device 1, including the waterproof housing structure as described above. The housing 10 is provided with an electrically connected light-emitting control board and a light-emitting element. When the cavity 11 generates negative pressure and the waterproof and breathable membrane 30 is blocked, the air chamber 21 draws in external gas to increase the volume occupied by the gas storage device 20 in the cavity 11, thereby balancing the air pressure inside the cavity 11 and the external air pressure, and preventing water vapor from entering from other waterproof weak points of the housing 10 and corroding the light-emitting control board or the light-emitting element.

[0046] In summary, the first vent 43 of the housing 10 connects its cavity 11 to the outside. A waterproof and breathable membrane 30 is provided on the first vent 43. The waterproof and breathable membrane 30 allows air to pass through and prevents water vapor from entering the cavity 11. The air storage device 20 on the housing 10 is provided with an air chamber 21 that communicates with the outside. When the cavity 11 generates negative pressure and the waterproof and breathable membrane 30 is blocked, the air chamber 21 draws in the outside air to increase the volume occupied by the air storage device 20 in the cavity 11, thereby balancing the air pressure inside the cavity 11 and the outside air pressure, and preventing water vapor from entering from other waterproof weak points of the housing 10.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A waterproof outer shell structure, characterized in that, Includes the casing and gas storage device; The housing has a cavity, and the housing is provided with a first vent hole that connects the cavity to the outside. The first vent hole is covered with a waterproof and breathable membrane. The gas storage device is located in the housing, and the gas storage device has a gas chamber that communicates with the outside world. When the cavity generates a negative pressure, the gas chamber draws in gas from the outside world to increase the volume of the gas storage device in the cavity.

2. The waterproof outer shell structure according to claim 1, characterized in that, It also includes a mounting component, wherein the housing has a mounting hole and the mounting component passes through the mounting hole; The mounting component has mounting chambers and air guide grooves arranged side by side and connected to the cavity. The air storage device is located in the mounting chamber. One end of the air guide groove is connected to the first vent hole opened on the mounting component.

3. The waterproof outer shell structure according to claim 1, characterized in that, The gas storage device is an elastic airbag.

4. The waterproof outer shell structure according to claim 2, characterized in that, The opening of the air chamber is covered with a cover plate, and the cover plate has a second vent hole that communicates with the air chamber.

5. The waterproof outer shell structure according to claim 4, characterized in that, The mounting component is provided with a second mounting recess, the mounting chamber is connected to the bottom wall of the second mounting recess, and the cover plate is detachably embedded in the second mounting recess.

6. The waterproof outer shell structure according to claim 2, characterized in that, It also includes a limiting component, the mounting component is provided with a first mounting cavity, one end of the air guide groove passes through the bottom wall of the first mounting cavity, the limiting component is detachably embedded in the first mounting cavity, and the waterproof and breathable membrane is located between the limiting component and the bottom wall of the first mounting cavity.

7. The waterproof outer shell structure according to claim 2, characterized in that, The mounting component has an extension, which contains the mounting chamber and the air guide groove. A sealing ring is fitted on the extension, and one end face of the sealing ring abuts against the end face of the mounting component.

8. The waterproof outer shell structure according to claim 3, characterized in that, The airbag has a sealing ring around its opening for connecting to the housing.

9. The waterproof outer shell structure according to claim 2, characterized in that, The mounting component is provided with external threads.

10. A lighting device, characterized in that, Includes the waterproof housing structure as described in any one of claims 1 to 9.

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