A device for testing the air tightness of a luminaire

By designing an automated lamp airtightness testing device, the problem of low automation in existing technologies has been solved, achieving efficient and stable airtightness testing. It is suitable for batch testing of various lamp models, ensuring the accuracy and consistency of test results.

CN224416364UActive Publication Date: 2026-06-26UNIVERSELITE
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
UNIVERSELITE
Filing Date
2025-06-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing lamp airtightness testing devices have low automation levels and poor fixing and sealing, resulting in unstable test results and poor repeatability, making it difficult to meet the high-precision and high-efficiency testing requirements of modern production.

Method used

A lamp airtightness testing device was designed, comprising a working platform, a fixing mechanism, and a testing mechanism. It utilizes a driving component and a telescopic rod to achieve automated fixing and sealing of the lamp, combines the pressure difference method for airtightness testing, and uses a sponge pad to protect the lamp from damage. It is suitable for lamps of different sizes and types.

Benefits of technology

It improves the automation level of testing and the stability and repeatability of results, reduces human intervention, is suitable for batch testing of various product models, and ensures that the lamps are not damaged during the testing process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224416364U_ABST
    Figure CN224416364U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of lamps and lanterns manufacturing, concretely relates to a lamp airtightness test's device, including work platform, be equipped with lamp body, fixed establishment and test mechanism on the work platform, the fixed establishment is used for limiting the position of lamp body, just the fixed establishment is arranged in cooperation with test mechanism, is used for testing the airtightness of lamp body. The utility model discloses through setting up the fixed establishment for limiting the position of lamp body, then through test mechanism test lamp body's airtightness, the fixation and the sealing of whole process are good, the degree of automation is higher, has reduced the manual intervention, and the test result is stable and has good repeatability, improves test efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of lighting manufacturing technology, and specifically relates to a device for testing the airtightness of lighting fixtures. Background Technology

[0002] Outdoor lighting fixtures, such as LED streetlights, need to be waterproof and dustproof, thus requiring good sealing; otherwise, their lifespan will be affected. Because the fixtures generate heat and expand during operation, a completely sealed environment would cause excessive internal pressure under heat, potentially damaging components during expansion, and in severe cases, even causing the light to explode. Therefore, a vent is provided on the fixture.

[0003] With the widespread application of lighting products in complex environments such as outdoor, industrial, and marine environments, the requirements for their airtightness are becoming increasingly stringent. Airtightness refers to the ability of a lighting fixture's housing to prevent the penetration of gases or liquids under specific conditions. It is an important performance indicator for ensuring the normal operation of internal electronic components and extending the lifespan of the lighting fixture.

[0004] In recent years, some companies have introduced airtightness testing devices based on the pressure difference principle. These devices fill the lamps with gas at a certain pressure and monitor pressure changes to determine whether the airtightness meets the standards. However, existing devices require manual holding of the lamp before gas is introduced for testing. This process suffers from problems such as inadequate fixing and sealing, and low automation, resulting in unstable and poor repeatability of test results, making it difficult to meet the demands of modern production for high-precision and efficient testing.

[0005] Therefore, this utility model is proposed. Utility Model Content

[0006] To solve the technical problems existing in the prior art, this utility model provides a device for testing the airtightness of lamps.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An apparatus for testing the air tightness of a lamp includes a working platform. The working platform is provided with a lamp body, a fixing mechanism, and a testing mechanism. The fixing mechanism is used to restrict the position of the lamp body, and the fixing mechanism is configured in conjunction with the testing mechanism to test the air tightness of the lamp body.

[0009] The fixing mechanism includes a top fixing mechanism and a limiting component.

[0010] The top fixing mechanism includes a first driving member, a first telescopic rod, a first connecting block, and a top limiting block; the top limiting block is provided with a sponge pad.

[0011] The limiting component includes a base, a left limiting block, a right limiting block, and a rear limiting block.

[0012] The testing mechanism includes a second driving component, a second telescopic rod, and a second connecting block. The second connecting block is provided with an air inlet pipe, which is connected to a venting branch pipe. The venting branch pipe is provided with an air valve. A vent hole is provided on one side of the lamp body, and the vent hole and the air inlet pipe are configured to cooperate with each other.

[0013] The limiting assembly includes a base, a left-side fixing mechanism, and a right-side fixing mechanism; the left-side fixing mechanism includes a third driving member, a third telescopic rod, a third connecting block, and a first limiting block; the right-side fixing mechanism includes a fourth driving member, a fourth telescopic rod, a fourth connecting block, and a second limiting block.

[0014] The testing mechanism includes a sealing mechanism and an air intake mechanism. The sealing mechanism includes a fifth driving component, a fifth telescopic rod, a fifth connecting block, and a sealing component. A vent is provided on one side of the lamp body, and the vent and the sealing component are configured in cooperation. The air intake mechanism includes an air intake pipe and an air intake port that penetrates the base and is located inside the lamp body.

[0015] Both the first limiting block and the second limiting block are provided with sponge pads.

[0016] The air intake pipe is equipped with a valve.

[0017] The work platform is equipped with a control console and an air pressure display mechanism; the bottom of the work platform is equipped with casters.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) This application sets a fixing mechanism to limit the position of the lamp body, and then tests the airtightness of the lamp body through a testing mechanism. The entire process has good fixing and sealing performance, a high degree of automation, reduces manual intervention, and the test results are stable and repeatable, thus improving the testing efficiency.

[0020] (2) This application adopts a top fixing mechanism, a left fixing mechanism and a right fixing mechanism, which are flexible in design and can be quickly adjusted and adapted according to different sizes and types of lamps. It is suitable for batch testing of various models of products. Furthermore, sponge pads are set on the first top limiting block, the first limiting block and the second limiting block to ensure that the lamp body is not damaged during the test. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the device for testing the airtightness of lamps in Example 1. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the device for testing the airtightness of lamps in Example 1. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the device for testing the airtightness of lamps in Example 1. Figure 3 ;

[0024] Figure 4 This is a schematic diagram of the device for testing the airtightness of lamps in Example 1. Figure 4 ;

[0025] Figure 5 This is a partial structural schematic diagram of the device for testing the airtightness of lamps in Example 1;

[0026] Figure 6 This is a partial structural schematic diagram of the device for testing the airtightness of lamps in Example 2;

[0027] Figure 7 This is a schematic diagram of the device for testing the airtightness of lamps in Example 2. Figure 1 ;

[0028] Figure 8 This is a schematic diagram of the device for testing the airtightness of lamps in Example 2. Figure 2 ;

[0029] Figure 9 for Figure 8 Enlarged view of part A of the structure;

[0030] Figure 10 This is a schematic diagram of the device for testing the airtightness of lamps in Example 2. Figure 3 ;

[0031] Figure 11 for Figure 10 Enlarged view of part B of the structure;

[0032] Figure 12 This is a schematic diagram of the device for testing the airtightness of lamps in Example 2. Figure 4 ;

[0033] The components are labeled as follows: 1. Working platform; 2. Lamp body; 21. Vent hole; 31. First driving component; 32. First telescopic rod; 33. First connecting block; 34. Top limiting block; 35. Sponge pad; 41. Base; 42. Left limiting block; 43. Right limiting block; 44. Rear limiting block; 51. Second driving component; 52. Second telescopic rod; 53. Second connecting block; 54. Air inlet pipe; 55. Vent branch pipe; 56. Air valve; 45. 1. Third drive component; 452. Third telescopic rod; 453. Third connecting block; 454. First limiting block; 461. Fourth drive component; 462. Fourth telescopic rod; 463. Fourth connecting block; 464. Second limiting block; 61. Fifth drive component; 62. Fifth telescopic rod; 63. Fifth connecting block; 64. Seal; 71. Air inlet pipe; 72. Air inlet; 73. Valve; 8. Control console; 9. Air pressure display mechanism; 10. Casters. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments.

[0035] In the following description, all directional (or orientational) concepts involving up, down, left, right, front, and back refer to the position of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be construed as a special limitation on the technical solution provided by this utility model. Example 1

[0036] like Figures 1-5 As shown, an apparatus for testing the air tightness of a lamp includes a working platform 1. The working platform 1 is provided with a lamp body 2, a fixing mechanism and a testing mechanism. The fixing mechanism is used to limit the position of the lamp body 2, and the fixing mechanism and the testing mechanism are arranged in cooperation to test the air tightness of the lamp body 2.

[0037] The fixing mechanism includes a top fixing mechanism and a limiting assembly. The top fixing mechanism includes a first driving member 31, a first telescopic rod 32, a first connecting block 33, and a top limiting block 34; a sponge pad 35 is provided on the top limiting block 34. The limiting assembly includes a base 41, a left limiting block 42, a right limiting block 43, and a rear limiting block 44 (attached). Figures 2-4 The image shows three sets of airtightness testing devices. The distance between the left limiting block 42 and the right limiting block 43 can be limited according to the size of the lamp body 2 to be measured. That is, the distance between the left limiting block 42 and the right limiting block 43 of the testing device in the middle position of the image is significantly smaller than the distance between the left limiting block 42 and the right limiting block 43 of the two testing devices to its left and right.

[0038] The testing mechanism includes a second driving component 51, a second telescopic rod 52, and a second connecting block 53. The second connecting block 53 is equipped with an air inlet pipe 54, which is connected to a vent branch pipe 55. The vent branch pipe 55 is equipped with an air valve 56. A vent hole 21 is located on one side of the lamp body 2, and the vent hole 21 and the air inlet pipe 54 are designed to work together. The work platform 1 is equipped with a control console 8 and an air pressure display mechanism 9. The bottom of the work platform 1 is equipped with casters 10, which facilitate the movement of the work platform 1 and prevent workers from having to carry the lamp body 2.

[0039] Specifically, the staff uses the first driving component 31 to raise the top limiting block 34 in the top fixing mechanism, and then puts the lamp body 2 into the base 41 so that the left and right sides of the lamp body 2 and the side away from the vent 21 can abut against the left limiting block 42, the right limiting block 43 and the rear limiting block 44. Then the top limiting block 34 is lowered so that the lamp body 2 is fixed on the base 41.

[0040] The second driving component 51 in the driving test mechanism causes the air inlet pipe 54 to approach and be inserted into the vent 21 on one side of the lamp body 2 (at this time, the lamp body 2 is fixed on the base 41 and will not shake when ventilating, and a sealed cavity is formed inside the lamp body 2). The air valve 56 on the vent branch pipe 55 is opened, and the control console 8 and the air pressure display mechanism 9 are used to perform an airtightness test on the lamp. Example 2

[0041] like Figure 6-12 As shown, an apparatus for testing the air tightness of a lamp includes a working platform 1. The working platform 1 is provided with a lamp body 2, a fixing mechanism and a testing mechanism. The fixing mechanism is used to limit the position of the lamp body 2, and the fixing mechanism and the testing mechanism are arranged in cooperation to test the air tightness of the lamp body 2.

[0042] The fixing mechanism includes a top fixing mechanism and a limiting assembly. The top fixing mechanism includes a first driving member 31, a first telescopic rod 32, a first connecting block 33, and a top limiting block 34. The limiting assembly includes a base 41, a left fixing mechanism, and a right fixing mechanism. The left fixing mechanism includes a third driving member 451, a third telescopic rod 452, a third connecting block 453, and a first limiting block 454. The right fixing mechanism includes a fourth driving member 461, a fourth telescopic rod 462, a fourth connecting block 463, and a second limiting block 464.

[0043] The testing mechanism includes a sealing mechanism and an air intake mechanism. The sealing mechanism includes a fifth driving component 61, a fifth telescopic rod 62, a fifth connecting block 63, and a sealing component 64. A vent 21 is provided on one side of the lamp body 2, and the vent 21 and the sealing component 64 are configured together. The air intake mechanism includes an air intake pipe 71 and an air intake port 72 that penetrates the base 41 and is located inside the lamp body 2.

[0044] A sponge pad 35 is provided on the top limiting block 34, the first limiting block 454, and the second limiting block 464. A valve 73 is provided on the air intake pipe 71. A control console 8 and an air pressure display mechanism 9 are provided on the work platform 1; casters 10 are provided at the bottom of the work platform 1.

[0045] Specifically, the staff uses the first driving component 31 to raise the top limiting block 34 in the top fixing mechanism, then places the lamp body 2 on the base 41, and drives the third driving component 451 of the left fixing mechanism and the fourth driving component 461 of the right fixing mechanism according to the specifications of the lamp body 2, so that the first limiting block 454 and the second limiting block 464 can approach each other and clamp the left and right sides of the lamp body 2. Then the top limiting block 34 is lowered so that the lamp body 2 is fixed on the base 41.

[0046] Then, the fifth drive component 61 of the sealing mechanism is driven, so that the sealing component 64 can be inserted into the vent 21 on one side of the lamp body 2, forming a sealed cavity inside the lamp body 2. Then, the valve 73 on the air inlet pipe 71 is opened, and the air tightness test of the lamp is performed using the control console 8 and the air pressure display mechanism 9.

[0047] It should be noted that the lamp airtightness testing device disclosed in this application uses the pressure difference method. This is one of the most commonly used airtightness testing methods. It involves placing the lamp under test in a sealed test chamber and applying a certain pressure to the inside of the chamber or the lamp (depending on the specific design), creating a pressure difference between the inside and outside. The pressure change is then monitored. If the pressure drops rapidly, it indicates a leak in the lamp; conversely, if the pressure remains stable, it indicates that the lamp has good airtightness.

[0048] This application sets up a fixing mechanism to limit the position of the lamp body 2, and then tests the airtightness of the lamp body 2 through a testing mechanism. The entire process has good fixation and sealing, and a high degree of automation (the control console 8, the air pressure display mechanism 9 and the testing mechanism are used to complete the steps of inflation, pressure holding, testing and depressurization, reducing manual intervention and improving testing efficiency and consistency). The reduced manual intervention results in stable and repeatable test results, thus improving testing efficiency.

[0049] This application adopts a top fixing mechanism, a left-side fixing mechanism, and a right-side fixing mechanism, which is flexible in design and can be quickly adjusted and adapted to different sizes and types of lamps, making it suitable for batch testing of various models of products; and sponge pads 35 are provided on the first top limiting block 34, the first limiting block 454, and the second limiting block 464 to ensure that the lamp body 2 is not damaged during the test.

[0050] The above content is a further detailed description of the technical solution provided in conjunction with the preferred embodiments of this patent. It should not be considered that the specific implementation of this utility model is limited to the above description. For those skilled in the art to which this patent pertains, several simple deductions or substitutions can be made without departing from the concept of this patent, and all of these should be considered to fall within the protection scope of this patent.

Claims

1. A device for testing the airtightness of a luminaire, characterized in that: The device includes a working platform, on which a lamp body, a fixing mechanism, and a testing mechanism are provided. The fixing mechanism is used to limit the position of the lamp body, and the fixing mechanism is set in conjunction with the testing mechanism to test the airtightness of the lamp body.

2. The apparatus for testing the airtightness of a lamp as described in claim 1, characterized in that: The fixing mechanism includes a top fixing mechanism and a limiting component.

3. The apparatus for testing the airtightness of a lamp as described in claim 2, characterized in that: The top fixing mechanism includes a first driving member, a first telescopic rod, a first connecting block, and a top limiting block; the top limiting block is provided with a sponge pad.

4. The apparatus for testing the airtightness of a lamp as described in claim 2, characterized in that: The limiting component includes a base, a left limiting block, a right limiting block, and a rear limiting block.

5. The apparatus for testing the airtightness of a lamp as described in any one of claims 1-4, characterized in that: The testing mechanism includes a second driving component, a second telescopic rod, and a second connecting block. The second connecting block is provided with an air inlet pipe, which is connected to a venting branch pipe. The venting branch pipe is provided with an air valve. A vent hole is provided on one side of the lamp body, and the vent hole and the air inlet pipe are configured to cooperate with each other.

6. The apparatus for testing the airtightness of a lamp as described in claim 2, characterized in that: The limiting assembly includes a base, a left-side fixing mechanism, and a right-side fixing mechanism; the left-side fixing mechanism includes a third driving member, a third telescopic rod, a third connecting block, and a first limiting block; the right-side fixing mechanism includes a fourth driving member, a fourth telescopic rod, a fourth connecting block, and a second limiting block.

7. The apparatus for testing the airtightness of a lamp as described in claim 6, characterized in that: The testing mechanism includes a sealing mechanism and an air intake mechanism. The sealing mechanism includes a fifth driving component, a fifth telescopic rod, a fifth connecting block, and a sealing component. A vent is provided on one side of the lamp body, and the vent and the sealing component are configured in cooperation. The air intake mechanism includes an air intake pipe and an air intake port that penetrates the base and is located inside the lamp body.

8. The apparatus for testing the airtightness of a lamp as described in claim 6, characterized in that: Both the first limiting block and the second limiting block are provided with sponge pads.

9. The apparatus for testing the airtightness of a lamp as described in claim 7, characterized in that: The air intake pipe is equipped with a valve.

10. The apparatus for testing the airtightness of a lamp as described in claim 1, characterized in that: The work platform is equipped with a control console and an air pressure display mechanism; the bottom of the work platform is equipped with casters.