An electric vehicle lamp housing air tightness testing device

Abstract

The present invention provides an electric vehicle lamp housing air tightness test device, belonging to the field of air tightness test technology. It includes an upper housing and a lower housing, a sealing ring is fixedly sleeved at the connection position between the upper housing and the lower housing, a base is screwed to the bottom of the lower housing, a wick is fixedly connected to the base, a detection base is screwed to the bottom of the lower housing, and a limiting groove is provided on the outer wall of the detection base; a support component, the support component is used to support the upper housing and the lower housing respectively, and the support component is connected to the detection base; a sealing component, the sealing component is used to seal the top of the lower housing, and the sealing component is connected to the detection base. By setting the sealing component, the present invention can not only seal and fix the lower housing, but also detect the sealing condition of the housing of the entire lamp according to different situations, thereby making the entire detection process more flexible and more targeted.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness testing, and in particular to an air tightness testing device for an electric vehicle lamp housing. Background Art

[0002] The air tightness test of the electric vehicle lamp shell is an important part of ensuring the performance and safety of the lamp. The air tightness test device is usually used to test the sealing performance of the lamp shell to prevent the intrusion of moisture, dust, etc., which will affect its normal operation and service life. At this stage, the pressure change monitoring and detection equipment is a relatively common detection equipment. In the process of monitoring the air tightness of the electric vehicle lamp shell, the instrument will fill a certain volume of dry, clean and impurity-free gas into the cavity of the lamp shell, and then start to detect the internal air pressure changes after a period of balanced pressure maintenance. If the pressure drops by more than the set standard value within a certain period of time, it is considered that the air tightness of the tested product is unqualified; otherwise, the air tightness is qualified within the test standard.

[0003] During the above-mentioned testing process, the upper shell and the lower shell of the product are generally matched together, and then gas is filled in to observe the air pressure. If the product fails to meet the air tightness requirements, the operator needs to further determine which part of the product fails to meet the air tightness requirements. Therefore, the upper shell and the lower shell need to be separated and the two need to be tested for air tightness separately. However, most air tightness testing equipment does not have the function of separately testing the product, so the operator needs to operate manually, which not only makes the product testing efficiency low, but also the manual operation has large errors.

[0004] Therefore, the present invention provides an electric vehicle lamp housing air tightness testing device to meet the demand. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an electric vehicle lamp shell airtightness testing device which, by setting a sealing component, can not only seal and fix the lower shell, but also can detect the shell sealing condition of the entire lamp according to different situations, thereby making the entire detection process more flexible and more targeted. The above setting can solve the problem that traditional airtightness detection equipment cannot realize the combination of local shell detection and overall detection, which in turn leads to low efficiency of lamp shell detection.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] An electric vehicle lamp housing air tightness testing device comprises an upper housing and a lower housing, wherein a sealing ring is fixedly sleeved at the connection position between the upper housing and the lower housing, a base is screwed on the bottom of the lower housing, a wick is fixedly connected to the base, a detection base is screwed on the bottom of the lower housing, and a limiting groove is provided on the outer side wall of the detection base; a supporting assembly, wherein the supporting assembly is respectively used to support the upper housing and the lower housing, and the supporting assembly is connected to the detection base; and a sealing assembly, wherein the sealing assembly is used to seal the top of the lower housing, and the sealing assembly is connected to the detection base.

[0008] Optionally, the support assembly includes a first rotating plate rotatably connected to the limiting groove, the top of the first rotating plate is fixedly connected to a U-shaped plate, a telescopic plate is inserted into the U-shaped plate, and one end of the telescopic plate is fixedly connected to a clamping plate.

[0009] Optionally, a plurality of groups of linearly arranged elastic blocks are symmetrically installed on the inner side of the U-shaped plate, and a plurality of linearly arranged adapting grooves matching the shapes of the elastic blocks are symmetrically opened on the inner side of the telescopic plate.

[0010] Optionally, a corrugated plate is fixedly connected to the inner wall of the clamping plate, a first weakening groove is provided at the connection position between the spring block and the U-shaped plate, and a second weakening groove is provided at the connection position between the telescopic plate and the clamping plate.

[0011] Optionally, the sealing assembly includes a first positioning groove opened in the middle position of the detection base, a second positioning groove is opened at the bottom of the first positioning groove, a second rotating plate is rotatably connected in the limiting groove, the top of the second rotating plate is fixedly connected to a limiting rod, one end of the top of the limiting rod is rotatably connected to a sealing disk, and the bottom of the sealing disk is fixedly connected to a sealing plate.

[0012] Optionally, a thread is provided in the second positioning groove, and extrusion sealing pads are fixedly connected to both sides of the first positioning groove, and a cavity is provided in the extrusion sealing pad.

[0013] Optionally, a positioning rotating hole is provided on the sealing disk, and a positioning rotating block matching the shape of the positioning rotating hole is fixedly connected to the top of the limiting rod.

[0014] Optionally, a spring sheet is fixedly connected to the bottom of the sealing disk, the sealing disk and the sealing plate are fixedly connected via the spring sheet, and a conical groove is provided at the bottom of the sealing plate.

[0015] Optionally, an L-shaped elastic sheet is fixedly connected to the outer side wall of the sealing plate, a covering clip is fixedly connected to the top of the L-shaped elastic sheet, and the covering clip is a C-shaped elastic structure.

[0016] Optionally, a third weakened groove is provided at the connection position between the L-shaped elastic sheet and the sealing plate, an outer flange is fixedly connected to one end of the covering clip, and lightweight holes are provided on the L-shaped elastic sheet and the covering clip.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by providing a sealing component, not only can the lower shell be sealed and fixed, but the sealing condition of the shell of the entire lamp can also be tested according to different conditions, thereby making the entire testing process more flexible and more targeted.

[0019] By arranging the first positioning groove and the second positioning groove in the sealing assembly, not only can the lower shell be fixed, but also no other auxiliary structures are used in the fixing process, and only the structure of the lamp shell itself is used to fix it. Furthermore, the sealing effect of the lower shell can be automatically achieved in the fixing process.

[0020] By arranging an L-shaped elastic sheet in the sealing assembly, the user can quickly seal the lower shell with the help of the sealing plate, and the operation is simple and convenient. In addition, when resetting the sealing plate, the operation is simpler and more convenient due to the arrangement of the L-shaped elastic sheet.

[0021] By setting up a support component, the shell can be supported and limited during the lamp shell detection process, and the support component has a highly adaptable supporting effect on the shell contour. Such a setting not only makes the support component better in supporting the lamp shell, but also has higher stability during the supporting process.

[0022] By arranging the telescopic plate and the U-shaped plate in the supporting assembly, not only can the height adjustment of the splint be achieved, but the operation is simple during the adjustment process, the adjustment accuracy is high, and automatic locking can be achieved during the adjustment process.

[0023] By setting up a supporting component and a sealing component, the two components form a complete airtightness detection system, which can perform overall and local airtightness detection on the lamp housing, and the switching of overall and local operation processes is simple and efficient, and the airtightness is high during the detection process. During the entire detection process, the supporting component cooperates with the sealing component, which can not only achieve the effect of targeted detection, but also has high stability of the lamp housing, thereby improving the accuracy and efficiency of airtightness detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the air tightness test device for the housing of an electric vehicle lamp;

[0026] Figure 2 It is a schematic diagram of the enlarged three-dimensional structure of the housing of the electric vehicle lamp;

[0027] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the housing of an electric vehicle lamp;

[0028] Figure 4 It is a schematic diagram of the enlarged three-dimensional structure of the housing and supporting components of the electric vehicle lamp;

[0029] Figure 5 A schematic diagram of the cross-sectional three-dimensional structure of the detection base and support assembly;

[0030] Figure 6 A schematic diagram of the three-dimensional structure of the detection base, lower shell and support assembly;

[0031] Figure 7 A schematic diagram of the enlarged three-dimensional structure of the detection base, support assembly and sealing assembly;

[0032] Figure 8 It is a schematic diagram of the enlarged three-dimensional structure of the sealing disc and the sealing plate;

[0033] Fig. 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the sealing disc and the sealing plate;

[0034] Fig.10 for Figure 5 A is a partial enlarged schematic diagram of the three-dimensional structure;

[0035] Fig.11 for Figure 5 A partial enlarged schematic diagram of the three-dimensional structure at B in the middle;

[0036] Fig.12 for Fig. 9 A partial enlarged schematic diagram of the three-dimensional structure at C in the middle;

[0037] Fig.13 It is a schematic diagram of the cross-sectional structure of the positioning rotating block and the positioning rotating hole.

[0038] [Reference Signs]

[0039] 1. Upper shell; 2. Lower shell; 3. Sealing ring; 4. Base; 5. Wick; 6. Detection base; 7. First positioning groove; 8. Second positioning groove; 9. Extrusion sealing pad; 10. Limiting groove; 11. First rotating plate; 12. U-shaped plate; 13. Telescopic plate; 14. Clamp; 15. Spring block; 16. Adapter groove; 17. First weakening groove; 18. Corrugated plate; 19. Second weakening groove; 20. Second rotating plate; 21. Limiting rod; 22. Sealing disk; 23. Spring piece; 24. Sealing plate; 25. Conical groove; 26. L-shaped elastic sheet; 27. Covering clip; 28. Outer flange; 29. ​​Third weakening groove; 30. Positioning rotating hole; 31. Positioning rotating block.

[0040] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0041] The following is a detailed description of an electric vehicle lamp housing air tightness test device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0042] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0043] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0044] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0045] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0046] like Figures 1 to 13 As shown, an embodiment of the present invention provides an electric vehicle lamp housing air tightness testing device, comprising an upper shell 1 and a lower shell 2, a sealing ring 3 is fixedly sleeved at the connection position of the upper shell 1 and the lower shell 2, a base 4 is screwed on the bottom of the lower shell 2, a wick 5 is fixedly connected to the base 4, a detection base 6 is screwed on the bottom of the lower shell 2, and a limiting groove 10 is provided on the outer wall of the detection base 6; a supporting assembly, the supporting assembly is used to support the upper shell 1 and the lower shell 2 respectively, and the supporting assembly is connected to the detection base 6; a sealing assembly, the sealing assembly is used to seal the top of the lower shell 2, and the sealing assembly is connected to the detection base 6, the lamp housing mainly consists of three parts: an upper shell 1, a lower shell 2 and a sealing ring 3 located at the connection position of the two groups of shells, wherein the bottom of the lower shell 2 is screwed on the base 4, a wick 5 is installed on the base 4 for providing lighting, and the upper shell 1, the lower shell 2 and the sealing ring 3 form a closed chamber to provide protection for the wick 5.

[0047] As an implementation method in this embodiment, Figures 4 to 7As shown, the support assembly includes a first rotating plate 11 rotatably connected to the limiting groove 10, a U-shaped plate 12 is fixedly connected to the top of the first rotating plate 11, a telescopic plate 13 is inserted in the U-shaped plate 12, one end of the telescopic plate 13 is fixedly connected to a clamping plate 14, a corrugated plate 18 is fixedly connected to the inner wall of the clamping plate 14, and a second weakening groove 19 is provided at the connection position between the telescopic plate 13 and the clamping plate 14. The support assembly is mainly responsible for supporting and limiting the upper shell 1 and the lower shell 2 during the detection process to ensure that the lamp housing has sufficient stability during the detection process. The shapes of the limiting groove 10 and the first rotating plate 11 are compatible with each other, and the limiting groove 10 can be used for the first rotating plate 11. The first rotating plate 11 is limited, and such a setting enables the first rotating plate 11 to rotate on the detection base 6 under the limiting action of the limiting groove 10; the U-shaped plate 12 is a U-shaped open structure, and the two sides of the U-shaped plate 12 are open elastic structures, and the telescopic plate 13 adapted to its shape is inserted into this elastic structure. Since the shapes of the two are adapted to each other, the telescopic plate 13 can be limited and fixed under the action of elastic force after the insertion is completed. The user can pull the telescopic plate 13 up and down to make the telescopic plate 13 rise and fall in the U-shaped plate 12; the clamping plate 14 is installed on the top of the telescopic plate 13, and the outline of the middle position of the upper shell 1 and the lower shell 2 is The shape of the clamping plate 14 is consistent with the contour of the middle position of the upper shell 1 and the lower shell 2, and the upper clamping plate 14 C-shaped elastic structure is set, so that the clamping plate 14 can clamp and limit the two. The corrugated plate 18 is set on the inner wall of the clamping plate 14. The corrugated plate 18 has a corrugated soft elastic structure and can be deformed and contracted during the extrusion process. The setting of the corrugated plate 18 enables the clamping plate 14 to increase the contact area between the clamping plate 14 and the shell in the process of clamping and limiting the two groups of shells with the help of the corrugated structure of the corrugated plate 18, and the corrugated plate 18 can be deformed during the extrusion process. The effect brought by the deformation makes the clamping The adaptation effect between the plate 14 and the shell is better, thereby improving the limiting effect of the supporting assembly on the shell; the second weakened groove 19 is arranged at the connection position of the clamping plate 14 and the telescopic plate 13, and the opening of the second weakened groove 19 thins the connection position between the two, so that the clamping plate 14 is easy to deform at the position of the second weakened groove 19 under the action of external force. The user can bend the clamping plate 14 outward to make it expand outward, and then let go to let it clamp on the outer wall of the shell. The above arrangement can not only improve the efficiency of the user in arranging the clamping plate 14, but also make the elastic performance of the clamping plate 14 better, thereby improving its clamping effect and facilitating the user's operation.

[0048] In this embodiment, if Figures 4 to 7 and Fig.11As shown, a plurality of groups of linearly arranged spring blocks 15 are symmetrically installed on the inner side of the U-shaped plate 12, and a first weakening groove 17 is provided at the connection position between the spring block 15 and the U-shaped plate 12. A plurality of linearly arranged adapter grooves 16 that are adapted to the shape of the spring block 15 are symmetrically provided on the inner side of the telescopic plate 13. As mentioned above, the telescopic plate 13 can be inserted into the U-shaped plate 12, and the user can adjust the height of the telescopic plate 13 by pushing and pulling the telescopic plate 13 up and down, wherein the arrangement of the spring block 15 and the adapter groove 16 can further improve the accuracy of the adjustment process of the telescopic plate 13. The spring block 15 is an elastic block-shaped structure, and a first weakening groove 17 is provided at the connection position between the spring block 15 and the U-shaped plate 12. The first weakening groove 17 thins the connection position between the two, making the spring block 15 easier to adjust. It is easy to elastically deform at this position. The spring block 15 itself has an inward elastic force under the action of elastic force. Under the action of this elastic force, the spring piece 23 is tightly against the outer wall of the telescopic plate 13. When the spring block 15 moves to the position of the adapter groove 16, it will be depressed and snapped into the adapter groove 16 under the action of the elastic force. At this time, the positioning effect of the telescopic plate 13 can be achieved under the joint snap-fitting action of multiple groups of spring blocks 15 and the adapter groove 16. Only when the user pulls the telescopic plate 13 hard can the spring block 15 be re-deformed at the position of the first weakened groove 17 and disengaged from the adapter groove 16. At this time, the user can readjust the position of the telescopic rod. The above arrangement makes it easier to lock and position the telescopic plate 13 during the adjustment process, and the adjustment accuracy is higher, and there will be no misalignment and separation during the adjustment process.

[0049] As an implementation method in this embodiment, Figures 5 to 10 As shown, the sealing assembly includes a first positioning groove 7 opened in the middle position of the detection base 6, a second positioning groove 8 is opened at the bottom of the first positioning groove 7, a second rotating plate 20 is rotatably connected in the limiting groove 10, and the top of the second rotating plate 20 is fixedly connected to a limiting rod 21, and the top end of the limiting rod 21 is rotatably connected to a sealing disk 22, and the bottom of the sealing disk 22 is fixedly connected to a sealing plate 24. The setting of the sealing assembly can not only seal and fix the lower shell 2, but also can detect the sealing condition of the shell of the entire lamp according to different situations, thereby making the entire detection process more flexible and more targeted; in the prior art, the lower shell 2 and the base 4 are generally fixed together by screwing, and the sealing assembly uses the screwing structure of the lower shell 2 to seal and fix the lower shell 2, which can not only greatly reduce the production cost, but also make the fixing process easier to operate.

[0050] In this embodiment, if Figures 5 to 10As shown, the second positioning groove 8 is provided with a thread, and both sides of the first positioning groove 7 are fixedly connected with an extrusion sealing gasket 9, and a cavity is provided in the extrusion sealing gasket 9. When it is necessary to test the sealing performance of the lamp housing, the bottom of the lower shell 2 is first inserted into the first positioning groove 7. The size of the first positioning groove 7 is larger than the size of the threaded area at the bottom of the lower shell 2, so it is labor-saving and easy to align during the insertion process. The contour of the bottom structure of the lower shell 2 is just matched with the contours of the first positioning groove 7 and the second positioning groove 8 on the detection base 6, and the parameters of the thread matching relationship between the inner thread of the second positioning groove 8 and the threaded area at the bottom of the lower shell 2 are consistent. Therefore, during the continuous insertion of the lower shell 2, the user can screw the lower shell 2 to make the structure of its threaded area screwed into the second positioning groove 8. At this time, the structure of the upper half of the threaded area of ​​the lower shell 2 The structure will be snapped into the first positioning groove 7, and an extrusion sealing gasket 9 is arranged in the first positioning groove 7. The cavity arranged in the extrusion sealing gasket 9 allows it to avoid deformation during the extrusion process. The extrusion sealing gasket 9 is a gradually inclined structure. The closer it is to the bottom of the first positioning groove 7, the greater the inward inclination angle. When the user screws the threaded area at the bottom of the lower shell 2 into the second positioning groove 8, the structure of the upper half of the threaded area will continuously squeeze the extrusion sealing gasket 9 and form a tight fit with it during the extrusion process, thereby forming a self-locking sealing effect. The above arrangement can not only achieve the fixing effect of the lower shell 2, but also does not rely on other auxiliary structures in the fixing process, but only uses the structure of the lamp shell itself to fix it. Further, the sealing effect of the lower shell 2 can be automatically achieved in the fixing process.

[0051] When the lower housing 2 is fixed to the detection base 6, the user can adjust the height of the telescopic rod to align the clamping plate 14 with the middle position of the upper housing 1 (such as the attached Figure 4 The state shown in the figure) is shown in the figure. At this time, the lamp housing is in a completely sealed state. The integrated lamp is fixed by the detection base 6 and supported and limited by the support component. The user connects the inflation component to the pipeline at the bottom of the detection base 6, and then performs an inflation test on the lamp housing. If the air pressure is stable and normal, the lamp housing is qualified. If there is a leak, it is unqualified.

[0052] In this embodiment, if Figures 7 to 9 , Fig.12 and Fig.13As shown, the bottom of the sealing disk 22 is fixedly connected with a spring piece 23, and the sealing disk 22 and the sealing plate 24 are fixedly connected by the spring piece 23. The bottom of the sealing plate 24 is provided with a conical groove 25, and the sealing disk 22 is provided with a positioning rotation hole 30. The top of the limiting rod 21 is fixedly connected with a positioning rotation block 31 that is adapted to the shape of the positioning rotation hole 30. The sealing disk 22 and the limiting rod 21 are limitedly connected by the positioning rotation block 31 and the positioning rotation hole 30. The positioning rotation block 31 can only rotate within 180 degrees in the positioning rotation hole 30. This arrangement allows the support between the sealing disk 22 and the limiting rod 21 to rotate within 180 degrees. In the default state (as shown in the attached Figure 1 (As shown in the figure) the sealing disk 22 needs to be installed to the outside to avoid obstruction of the surgical field and space.

[0053] In this embodiment, if Figures 7 to 9 and Fig.12 As shown, an L-shaped elastic sheet 26 is fixedly connected to the outer wall of the sealing plate 24, and a covering clip 27 is fixedly connected to the top of the L-shaped elastic sheet 26. The covering clip 27 is a C-shaped elastic structure. A third weakening groove 29 is provided at the connection position between the L-shaped elastic sheet 26 and the sealing plate 24, and an outer flange 28 is fixedly connected to one end of the covering clip 27. Lightweight holes are provided on the L-shaped elastic sheet 26 and the covering clip 27. When the lamp housing is unqualified, in order to further determine which part of the lamp housing is unqualified, the operator can disassemble the upper housing 1 at this time, and the lower housing 2 remains unchanged and is still fixed on the detection base 6, and the height of the telescopic rod is lowered to allow the clamping plate 14 to be clamped to the outer wall of the lower housing 2 (as shown in the attached Figure 7 The sealing plate 24 is then moved outwards to the state shown in the figure, and then the sealing disk 22 is rotated one hundred and eighty degrees. After the sealing disk 22 has been rotated completely, the user bends the L-shaped elastic piece 26 outwards. During the bending process of the L-shaped elastic piece 26, the covering clip 27 will gradually move outwards until it is completely separated from the sealing disk 22. At this time, the sealing plate 24 is separated from the limit and under the elastic action of the spring piece 23, the sealing plate 24 will move toward the lower shell body 2. During the movement, the top of the lower shell body 2 will gradually sink into the conical groove 25 and gradually fit and plug together with the conical groove 25. After the two are plugged together, the lower shell body 2 will be sealed under the blocking action of the sealing plate 24. At this time, the inspector can perform a sealing test on the lower shell body 2 alone. If the air pressure is found to be normal, then the air tightness of the lower shell body 2 is good and the upper shell body 1 is leaking. Using this method to perform an airtightness test on the lamp shell can capture the position where the airtightness is insufficient as quickly as possible, thereby improving the efficiency of the entire detection process.

[0054] The L-shaped elastic piece 26 is composed of two parts, one part is the covering clip 27 located at one end of the L-shaped elastic piece 26, the contour of the covering clip 27 is consistent with the contour of the corner of the sealing disk 22, such a configuration allows the covering clip 27 to wrap around the edge of the sealing disk 22, thereby achieving a limiting effect on the sealing plate 24; the other part is located at the other end of the L-shaped elastic piece 26, this end is directly fixed to the outer wall of the sealing plate 24, and a third weakening groove 29 is provided at the connecting position of the two, the weakening groove thins the L-shaped elastic piece 26, so that the L-shaped elastic piece 26 is easy to bend and deform at the position where the third weakening groove 29 is opened. When the covering clip 27 is clamped at the edge of the sealing disk 22, the sealing plate 24 is limited by the L-shaped elastic piece 26, and the spring piece 23 between the sealing plate 24 and the sealing disk 22 is in a squeezed state. After the sheet 27 is broken off from the sealing disk 22, the spring piece 23 recovers its deformation and pushes the sealing plate 24 close to the lower shell body 2 to form a seal. In the process of breaking the covering clip 27 outward, the L-shaped elastic sheet 26 will bend and deform along the position of the third weakened groove 29. When the user needs to reset the L-shaped elastic sheet 26, he only needs to press the covering clip 27 again and snap it onto the sealing disk 22. The outer flanges 28 at both ends of the covering clip 27 have an outward-turned arc. The setting of this arc allows the user to use its arc structure to guide when re-fixing the covering clip 27 to the sealing disk 22, thereby making the two more labor-saving to snap together. The setting of the above structure allows the user to quickly seal the lower shell body 2 with the help of the sealing plate 24, and the operation is simple and convenient. In addition, when resetting the sealing plate 24, the setting of the L-shaped elastic sheet 26 makes the operation simpler and more convenient.

[0055] According to the working principle of the present invention, when it is necessary to test the sealing performance of the lamp housing, the bottom of the lower housing 2 is first inserted into the first positioning groove 7. During the continuous insertion of the lower housing 2, the user can screw the lower housing 2 so that the structure of the threaded area thereof is screwed into the second positioning groove 8, thereby achieving the effect of fixing and sealing the lower housing 2. After the lower housing 2 is fixed to the detection base 6, the user can adjust the height of the telescopic rod so that the clamping plate 14 is aligned with the middle position of the upper housing 1. At this time, the lamp housing is in a completely sealed state, and the integrated lamp is fixed by the detection base 6. The user connects the inflation component to the pipeline at the bottom of the detection base 6, and then performs an inflation test on the lamp housing. If the air pressure is stable and normal, the lamp housing is qualified. If there is air leakage, it is unqualified. When the lamp housing is unqualified, in order to further judge If any part of the lamp housing is unqualified, the operator can remove the upper housing 1, and the lower housing 2 remains unchanged and is still fixed on the detection base 6, and the height of the telescopic rod is lowered to allow the clamp 14 to be clamped to the outer wall of the lower housing 2, and then the sealing disk 22 is rotated one hundred and eighty degrees. After the sealing disk 22 is rotated, the user bends the L-shaped elastic sheet 26 outward, and during the bending process of the L-shaped elastic sheet 26, the covering clamp 27 will gradually move outward until it is completely separated from the sealing disk 22. At this time, the sealing plate 24 is disengaged from the limit and under the elastic action of the spring sheet 23, the sealing plate 24 will move toward the lower housing 2. During the movement, the top of the lower housing 2 will gradually sink into the conical groove 25, and gradually fit and connect with the conical groove 25. At this time, the inspector can perform a sealing test on the lower housing 2 alone. If the air pressure is found to be normal, then the air tightness of the lower housing 2 is good and the upper housing 1 is leaking.

[0056] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electric vehicle lamp housing air tightness test device, comprising a detection base, characterized in that: A sealing ring is fixedly sleeved at the connection position between the upper shell and the lower shell, a base is screwed on the bottom of the lower shell, a wick is fixedly connected to the base, the bottom of the lower shell is screwed on the detection base, and a limiting groove is provided on the outer side wall of the detection base; A support assembly, which is used to support the upper housing when the entire lamp housing is tested, and is used to support the lower housing when the lower housing is tested alone, and the support assembly is connected to the detection base; A sealing assembly, which is used to seal the bottom of the lower housing when the entire lamp housing is tested, and is used to seal the top and bottom of the lower housing when the lower housing is tested alone, and the sealing assembly is connected to the detection base; The sealing assembly comprises a first positioning groove, a second positioning groove, a second rotating plate, a limiting rod, a sealing disk and a sealing plate, wherein the first positioning groove is arranged at the middle position of the detection base, the second positioning groove is arranged at the bottom of the first positioning groove, the second rotating plate is rotatably connected in the limiting groove, the limiting rod is fixedly connected to the top of the second rotating plate, the sealing disk is rotatably connected to one end of the top of the limiting rod, and the sealing plate is fixedly connected to the bottom of the sealing disk; The supporting assembly includes a first rotating plate, a U-shaped plate, a telescopic plate and a clamping plate, the first rotating plate is rotatably connected in the limiting groove, the U-shaped plate is fixedly connected to the top of the first rotating plate, the telescopic plate is inserted in the U-shaped plate, and the clamping plate is fixedly connected to one end of the telescopic plate.

2. The electric vehicle lamp housing air tightness testing device according to claim 1, characterized in that: A plurality of groups of linearly arranged elastic blocks are symmetrically installed on the inner side of the U-shaped plate, and a plurality of linearly arranged adapting grooves that are adapted to the shapes of the elastic blocks are symmetrically opened on the inner side of the telescopic plate.

3. The electric vehicle lamp housing air tightness testing device according to claim 2, characterized in that: A corrugated plate is fixedly connected to the inner wall of the clamping plate, a first weakening groove is provided at the connection position between the spring block and the U-shaped plate, and a second weakening groove is provided at the connection position between the telescopic plate and the clamping plate.

4. The electric vehicle lamp housing air tightness testing device according to claim 1, characterized in that: The second positioning groove is provided with a thread, and both sides of the first positioning groove are fixedly connected with an extrusion sealing pad, and the extrusion sealing pad is provided with a cavity.

5. The electric vehicle lamp housing air tightness testing device according to claim 1, characterized in that: The sealing disk is provided with a positioning rotating hole, and the top of the limiting rod is fixedly connected with a positioning rotating block which is adapted to the shape of the positioning rotating hole.

6. The electric vehicle lamp housing air tightness testing device according to claim 1, characterized in that: The bottom of the sealing disc is fixedly connected with an elastic sheet, the sealing disc and the sealing plate are fixedly connected via the elastic sheet, and a conical groove is provided at the bottom of the sealing plate.

7. The electric vehicle lamp housing air tightness testing device according to claim 1, characterized in that: An L-shaped elastic sheet is fixedly connected to the outer side wall of the sealing plate, and a covering clip is fixedly connected to the top of the L-shaped elastic sheet. The covering clip is a C-shaped elastic structure.

8. The electric vehicle lamp housing air tightness testing device according to claim 7, characterized in that: A third weakened groove is provided at the connection position between the L-shaped elastic sheet and the sealing plate, an outer flange is fixedly connected to one end of the covering clip, and lightweight holes are provided on the L-shaped elastic sheet and the covering clip.

Images