A drying device and vehicle lamp

Abstract

This invention provides a drying device and a vehicle lamp. The drying device includes a placement base with a placement hole and multiple partitions. The placement hole is axially aligned with the height of the placement base. The partitions divide the placement hole into independent first chambers and multiple second chambers. A humidity indicator card is placed in the first chamber, and a desiccant is placed in each of the second chambers. A threaded structure is provided on the outer circumference of the middle portion of the placement base in the height direction for threaded connection with a connection hole on the vehicle lamp housing. A cover plate is detachably connected to the placement base at the end away from the threaded structure via a connecting assembly to limit and fix the humidity indicator card and desiccant within the placement base. This invention eliminates the need to disassemble the original sealing structure of the vehicle lamp housing. The dryer can be quickly replaced by unscrewing the dryer from the connection hole on the vehicle lamp housing and opening the cover plate, improving operational convenience.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, and in particular to a drying device and a vehicle lighting device. Background Technology

[0002] Vehicle lights are an important component of a vehicle, and the humidity control of their internal environment directly affects their performance and driving safety. Therefore, desiccants are usually required to absorb internal moisture.

[0003] Currently, the desiccant used inside automotive headlights is generally a fixed-fill structure. Specifically, this type of desiccant is fixed to a pre-set mounting position inside the headlight housing through methods such as clip-on interference fit and injection molding, forming a rigid and inseparable integral connection between the desiccant and the headlight housing. However, when it is necessary to replace the desiccant in this structure, it is often necessary to disassemble the headlight housing first. The entire process is not only time-consuming and labor-intensive, but also requires a high level of skill from the operator, making it difficult for ordinary car owners to complete the replacement themselves. At the same time, it is difficult for the headlight to restore its original sealing precision after disassembly and reinstallation, resulting in a decrease in the overall sealing performance of the headlight. This allows external moisture to enter the headlight more easily, affecting the normal use of the headlight and shortening its lifespan. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a drying device and a vehicle lamp, which aims to solve the technical problems of the fact that the desiccant used inside the existing vehicle lamps is generally a fixed filling structure. When replacing the desiccant, it is necessary to disassemble the vehicle lamp housing first, which is time-consuming and labor-intensive, requires a high level of skill from the operator, and is difficult for ordinary car owners to complete the replacement themselves. At the same time, it is difficult to restore the original sealing accuracy of the vehicle lamp after disassembly and reinstallation, resulting in a reduction in the overall sealing performance of the vehicle lamp.

[0005] One aspect of this utility model is to provide a drying device for use with vehicle lights, the drying device comprising:

[0006] The placement base has a placement hole and multiple partitions. The axial direction of the placement hole is set along the height direction of the placement base. The multiple partitions divide the placement hole into independent first chambers and multiple second chambers. A humidity indicator card is provided in the first chamber, and a desiccant is provided in each of the second chambers.

[0007] The outer circumferential surface of the middle part of the placement seat in the height direction is provided with a threaded structure for threaded connection with the connection hole on the headlight housing;

[0008] The cover plate is detachably connected to the opening at the end of the placement seat away from the threaded structure via a connecting assembly to limit and secure the humidity indicator card and the desiccant within the placement seat.

[0009] In addition, the drying apparatus according to the present invention may also have the following additional technical features:

[0010] Furthermore, the placement seat includes a seat body, a protruding ring connected to the seat body, and a connecting tube connected to the side of the protruding ring away from the seat body. The placement hole is formed through the interior of the seat body, the protruding ring, and the connecting tube. The threaded structure is provided on the outer circumferential surface of the end of the connecting tube connected to the protruding ring.

[0011] The end of the connecting tube away from the convex ring is provided with at least two snap-fit ​​holes, and the plurality of snap-fit ​​holes are arranged at intervals along the circumference of the connecting tube, and the axial direction of the snap-fit ​​holes is arranged along the radial direction of the connecting tube.

[0012] Furthermore, the circumferential outer contour of the seat portion is a regular hexagonal structure.

[0013] Furthermore, a guide groove is provided on the inner wall of the end of the connecting pipe away from the convex ring. The guide groove extends from the end face of the connecting pipe along the axial direction of the connecting pipe toward the convex ring. A limiting block is provided on one side of the guide groove along the radial direction of the connecting pipe. A guide surface is provided on the side of the limiting block near the center of the connecting pipe. The guide surface is inclined.

[0014] Furthermore, the connecting component includes at least two snap-fit ​​blocks, and a plurality of snap-fit ​​blocks are arranged at intervals along the circumference of the cover plate. The snap-fit ​​blocks are L-shaped structures, one end of the snap-fit ​​block is fixedly connected to the surface of the cover plate, the other end of the snap-fit ​​block is adapted to the snap-fit ​​hole, and the snap-fit ​​block has an inclined abutment surface on the side opposite to the cover plate.

[0015] Furthermore, the connecting assembly also includes a guide plate, which is adapted to the guide groove. One end of the guide plate is fixedly connected to the surface of the cover plate, and the guide plate and the snap-fit ​​member are located on the same side of the cover plate.

[0016] The guide plate is provided with a limiting hole, the axial direction of which is arranged along the radial direction of the cover plate, and the limiting hole is adapted to the limiting block.

[0017] Furthermore, the cover plate is provided with a plurality of first through holes and a plurality of second through holes, both of which are arranged along the thickness direction of the cover plate.

[0018] Furthermore, the drying device also includes a viewing window, which is located on the side of the base corresponding to the first chamber and communicates with the first chamber, for observing the color change of the humidity indicator card.

[0019] Furthermore, the drying device also includes an annular sealing ring, which is sleeved on the end of the connecting pipe that is connected to the convex ring.

[0020] Another aspect of this utility model is to provide a vehicle lamp, including a housing and the aforementioned drying device. The housing is provided with the connection hole, and the connection hole is threadedly connected to the connecting tube in the placement seat through the threaded structure, so as to realize the detachable connection between the drying device and the housing.

[0021] Compared to existing technologies, the advantages of this utility model's drying device and vehicle lamp are as follows: By setting a threaded structure on the placement seat, a detachable threaded connection is formed between the drying device and the connection hole on the vehicle lamp housing. Simultaneously, the cover plate and placement seat are easily disassembled and reassembled via a connecting component. The placement seat contains an independent first chamber and multiple second chambers. The first chamber contains a humidity indicator card, and the second chambers contain a desiccant. A viewing window is also provided on one side of the placement seat for observing color changes in the humidity indicator card. In practical application, when a color change in the humidity indicator card is observed through the viewing window, there is no need to disassemble the original sealing structure of the vehicle lamp housing. Simply unscrew the drying device from the connection hole on the vehicle lamp housing and open the cover plate to quickly replace the desiccant and humidity indicator card. The entire process requires no professional tools and can be operated by ordinary car owners, greatly improving ease of operation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the drying device of this utility model;

[0023] Figure 2 This is an exploded view of the drying apparatus of this utility model;

[0024] Figure 3 This is a structural diagram of the drying device of this utility model, showing the placement seat from a first-view perspective.

[0025] Figure 4 This is a structural diagram of the placement seat in the drying device of this utility model from a second perspective;

[0026] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;

[0027] Figure 6 This is a structural diagram of the cover plate and connecting assembly in the drying device of this utility model from a first-view perspective;

[0028] Figure 7 This is a structural diagram of the cover plate and connecting assembly in the drying device of this utility model from a second perspective.

[0029] The above-mentioned figures include the following reference numerals: 10-placement seat; 11-seat body; 12-convex ring; 13-connecting pipe; 14-threaded structure; 15-viewing window; 16-limiting block; 17-partition; 101-first chamber; 102-second chamber; 103-clamping hole; 104-guide groove; 20-desiccant; 30-humidity indicator card; 40-cover plate; 401-first through hole; 402-second through hole; 51-clamping block; 52-guide plate; 521-limiting hole; 60-annular sealing ring.

[0030] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several 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 so that the disclosure of this utility model will be more thorough and complete.

[0032] It should be noted that when a component is said to be "fixed to" another component, it can be directly on 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.

[0033] 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.

[0034] Please see Figures 1 to 7The image shows a drying device according to the present invention, used in conjunction with a vehicle headlight. The drying device includes a placement seat 10, a cover plate 40, and a connecting assembly for connecting the placement seat 10 and the cover plate 40. The placement seat 10 is used to hold a desiccant 20 and a humidity indicator card 30. Specifically, the placement seat 10 has a placement hole and multiple partitions 17. The axial direction of the placement hole is arranged along the height direction of the placement seat 10. The multiple partitions 17 divide the placement hole into independent first chambers 101 and multiple second chambers 102. The first chamber 101 contains a humidity indicator card 30, and the color change of the humidity indicator card 30 visually reflects the humidity of the internal environment of the headlight. Each second chamber 102 contains a desiccant 20. As a specific example, in this embodiment, the placement hole has two parallel partitions 17, which divide the placement hole into an independent first chamber 101 and two second chambers 102. Meanwhile, the humidity indicator card 30 in this embodiment is a cobalt-free humidity card. When the desiccant 20 is saturated and the humidity value inside the headlight reaches the corresponding value for the humidity indicator card 30 to change color, the card will change from blue to red, thus reminding the user to replace it.

[0035] Furthermore, a threaded structure 14 is provided on the outer peripheral surface of the middle part of the placement seat 10 in the height direction for threaded connection with the connection hole on the vehicle lamp housing. The drying device can be firmly installed on the vehicle lamp housing through thread engagement, and it is also convenient for later disassembly and maintenance.

[0036] More specifically, the placement seat 10 adopts a segmented structural design, including a seat body 11, a convex ring 12 connected to the seat body 11, and a connecting tube 13 connected to the side of the convex ring 12 away from the seat body 11. The interiors of the seat body 11, the convex ring 12, and the connecting tube 13 are interconnected to form the placement hole. The seat body 11 serves as a handheld operating end. Preferably, the circumferential outer contour of the seat body 11 is a regular hexagonal structure, so that the user can turn the placement seat 10 with tools or by hand, improving the efficiency of disassembly and assembly. The convex ring 12 is located between the seat body 11 and the connecting tube 13, and plays an axial limiting role. When the placement seat 10 is connected to the vehicle lamp housing, the side of the convex ring 12 away from the seat body 11 abuts against the housing surface to avoid over-screwing. The outer circumferential surface of the end of the connecting tube 13 connected to the convex ring 12 is provided with the threaded structure 14.

[0037] Furthermore, to achieve a detachable connection between the cover plate 40 and the placement seat 10, at least two snap-fit ​​holes 103 are provided at the end of the connecting tube 13 away from the protruding ring 12, i.e., at the open end of the placement seat 10. The multiple snap-fit ​​holes 103 are spaced apart circumferentially along the connecting tube 13, and the axial direction of the snap-fit ​​holes 103 is arranged radially along the connecting tube 13. As a specific example, in this embodiment, two snap-fit ​​holes 103 are provided at the end of the connecting tube 13 away from the protruding ring 12. The snap-fit ​​holes 103 are square holes that can form a stable engagement with the snap-fit ​​block 51 on the cover plate 40.

[0038] Furthermore, to improve the guidance and positioning accuracy of the cover plate 40 during installation, a guide groove 104 is provided on the inner wall of the end of the connecting pipe 13 away from the convex ring 12. The guide groove 104 extends from the end face of the connecting pipe 13 along the axial direction of the connecting pipe 13 toward the convex ring 12, forming an axial guide channel. A limiting block 16 is provided on one side of the guide groove 104 along the radial direction of the connecting pipe 13. A guide surface is provided on the side of the limiting block 16 near the center of the connecting pipe 13. The guide surface is inclined. Preferably, the inclination angle of the guide surface is 45°. When the guide plate 52 on the cover plate 40 is inserted into the guide groove 104, the plate surface of the guide plate 52 contacts the guide surface, causing the plate surface of the guide plate 52 to be subjected to compressive force and undergo elastic deformation, so that the limiting block 16 can smoothly enter the limiting hole 521 on the guide plate 52 to achieve engagement.

[0039] In this embodiment, the cover plate 40 is detachably connected to the end opening of the placement seat 10 away from the threaded structure 14 via a connecting assembly, so as to limit and fix the humidity indicator card 30 and the desiccant 20 within the placement seat 10. The cover plate 40 is provided with multiple first through holes 401 and multiple second through holes 402, both of which are arranged through the thickness direction of the cover plate 40 to ensure that air inside the headlight can smoothly enter the second chamber 102 and contact the desiccant 20, and that the humidity indicator card 30 in the first chamber 101 can accurately reflect the ambient humidity.

[0040] The connecting assembly includes a snap-fit ​​block 51 and a guide plate 52, which work together to achieve a stable connection. Specifically, at least two snap-fit ​​blocks 51 are provided, matching the number of snap-fit ​​holes 103, and multiple snap-fit ​​blocks 51 are spaced apart along the circumference of the cover plate 40. In this embodiment, the snap-fit ​​block 51 has an L-shaped structure. One end of the snap-fit ​​block 51 is vertically fixed to the surface of the cover plate 40 by injection molding or welding, and the other end of the snap-fit ​​block 51 extends away from the center of the cover plate 40 to form a snap-fit ​​end that matches the snap-fit ​​hole 103. Furthermore, the snap-fit ​​block 51 has an inclined abutment surface on the side opposite to the cover plate 40. The inclination angle of the abutment surface is preferably 45°. When the cover plate 40 is installed, the abutment surface on the snap-fit ​​block 51 contacts the inner wall of the connecting pipe 13. The inclined surface guides the snap-fit ​​block 51 to produce elastic deformation towards the center of the connecting pipe 13, so that the snap-fit ​​block 51 can enter the interior of the connecting pipe 13. When the end of the snap-fit ​​block 51 enters the snap-fit ​​hole 103, the snap-fit ​​block 51 is no longer subjected to the squeezing force of the inner wall of the connecting pipe 13, the snap-fit ​​block 51 returns to its original shape, and the end of the snap-fit ​​block 51 is stably snapped into the snap-fit ​​hole 103.

[0041] Furthermore, the guide plate 52 is adapted to the guide groove 104 of the connecting pipe section 13. One end of the guide plate 52 is fixedly connected to the surface of the cover plate 40 by injection molding or welding, and the guide plate 52 and the snap-fit ​​are located on the same side of the cover plate 40. The other end of the guide plate 52 extends along the thickness direction of the cover plate 40. The guide plate 52 is provided with a limiting hole 521, the axial direction of which is arranged along the radial direction of the cover plate 40. The limiting hole 521 is adapted to the limiting block 16. When the guide plate 52 is inserted into the guide groove 104, the limiting block 16 can be snapped into the limiting hole 521 to fix the cover plate 40 in the circumferential direction of the placement seat 10.

[0042] The drying device of this application also includes a viewing window 15, which is located on the side of the base 11 corresponding to the first chamber 101. The viewing window 15 is made of transparent plastic and a back cover in two colors by injection molding, and is connected to the first chamber 101, so that the user can directly observe the color change of the humidity indicator card 30 without disassembling the device and determine whether the desiccant 20 has failed.

[0043] The drying device of this application also includes an annular sealing ring 60, which is sleeved on the end of the connecting pipe 13 that is connected to the convex ring 12. When the placement seat 10 is connected to the vehicle lamp housing, the sealing ring 60 is compressed between the convex ring 12 and the surface of the housing, which can effectively prevent external moisture from entering the interior of the vehicle lamp and improve the sealing performance.

[0044] Another aspect of this utility model is to provide a vehicle lamp, including a housing and the aforementioned drying device. The housing is provided with a connection hole, which is threadedly connected to the connecting tube portion 13 in the placement seat 10 through a threaded structure 14, so as to realize a detachable connection between the drying device and the housing.

[0045] In practical application, the drying device of this application can be used as follows: after loading the desiccant 20 into the second chamber 102 and the humidity indicator card 30 into the first chamber 101, the guide plate 52 of the cover plate 40 is aligned with the guide groove 104 of the connecting pipe 13 and inserted. The cover plate 40 is pushed so that the edge of the guide plate 52 contacts the guide surface on the limiting block 16 and the contact surface of the snap-fit ​​block 51 contacts the inner wall of the connecting pipe 13. Under the action of external thrust, both the guide plate 52 and the snap-fit ​​block 51 undergo elastic deformation, so that the limiting block 16 is snapped into the limiting hole 521 on the guide plate 52 and the end of the snap-fit ​​block 51 is snapped into the snap-fit ​​hole 103, thereby completing the installation of the cover plate 40 at the opening end of the placement seat 10. Then, the sealing ring 60 is fitted onto the connecting pipe 13 and the sealing ring 60 is positioned on the convex ring 12.

[0046] Finally, insert the connecting tube 13 of the assembled drying device into the connecting hole of the headlight housing, and thread it into the connecting hole through the threaded structure 14 until the sealing ring 60 on the convex ring 12 fits tightly against the housing, thus completing the detachable installation of the drying device on the headlight. During subsequent use, periodically observe the humidity indicator card 30 through the viewing window 15. If the color of the humidity indicator card 30 changes from blue to red, the desiccant 20 is saturated and needs to be replaced. At this time, the user can rotate the seat body 11 of the placement seat 10 to make the entire drying device unscrew out of the connecting hole on the headlight housing. Then, apply external force to the snap-fit ​​block 51 located in the snap-fit ​​hole 103 to disengage it from the snap-fit ​​hole 103, so that the cover plate 40 can be removed from the opening end of the placement seat 10. After replacing the desiccant 20 and the humidity indicator card 30, screw the entire drying device back into the mounting hole on the headlight housing.

[0047] Compared to existing technologies, the advantages of this utility model's drying device and vehicle lamp are as follows: By setting a threaded structure on the placement seat, a detachable threaded connection is formed between the drying device and the connection hole on the vehicle lamp housing. Simultaneously, the cover plate and placement seat are easily disassembled and reassembled via a connecting component. The placement seat contains an independent first chamber and multiple second chambers. The first chamber contains a humidity indicator card, and the second chambers contain a desiccant. A viewing window is also provided on one side of the placement seat for observing color changes in the humidity indicator card. In practical application, when a color change in the humidity indicator card is observed through the viewing window, there is no need to disassemble the original sealing structure of the vehicle lamp housing. Simply unscrew the drying device from the connection hole on the vehicle lamp housing and open the cover plate to quickly replace the desiccant and humidity indicator card. The entire process requires no professional tools and can be operated by ordinary car owners, greatly improving ease of operation.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model application should be determined by the appended claims.

Claims

1. A drying device for use with vehicle lights, characterized in that, The drying device includes: The placement base has a placement hole and multiple partitions. The axial direction of the placement hole is set along the height direction of the placement base. The multiple partitions divide the placement hole into independent first chambers and multiple second chambers. A humidity indicator card is provided in the first chamber, and a desiccant is provided in each of the second chambers. The outer circumferential surface of the middle part of the placement seat in the height direction is provided with a threaded structure for threaded connection with the connection hole on the headlight housing; The cover plate is detachably connected to the opening at the end of the placement seat away from the threaded structure via a connecting assembly to limit and secure the humidity indicator card and the desiccant within the placement seat.

2. The drying apparatus according to claim 1, characterized in that, The placement seat includes a seat body, a protruding ring connected to the seat body, and a connecting tube connected to the side of the protruding ring away from the seat body. The placement hole is formed through the interior of the seat body, the protruding ring, and the connecting tube. The threaded structure is provided on the outer circumferential surface of the end of the connecting tube connected to the protruding ring. The end of the connecting tube away from the convex ring is provided with at least two snap-fit ​​holes, and the plurality of snap-fit ​​holes are arranged at intervals along the circumference of the connecting tube, and the axial direction of the snap-fit ​​holes is arranged along the radial direction of the connecting tube.

3. The drying apparatus according to claim 2, characterized in that, The outer circumferential contour of the base portion is a regular hexagonal structure.

4. The drying apparatus according to claim 2, characterized in that, A guide groove is provided on the inner wall of the end of the connecting pipe away from the convex ring. The guide groove extends from the end face of the connecting pipe along the axial direction of the connecting pipe toward the convex ring. A limiting block is provided on one side of the groove wall along the radial direction of the connecting pipe. A guide surface is provided on the side of the limiting block near the center of the connecting pipe. The guide surface is inclined.

5. The drying apparatus according to claim 4, characterized in that, The connecting component includes at least two snap-fit ​​blocks, and a plurality of snap-fit ​​blocks are arranged at intervals along the circumference of the cover plate. The snap-fit ​​blocks are L-shaped structures, one end of the snap-fit ​​block is fixedly connected to the surface of the cover plate, the other end of the snap-fit ​​block is adapted to the snap-fit ​​hole, and the snap-fit ​​block has an inclined abutment surface on the side away from the cover plate.

6. The drying apparatus according to claim 5, characterized in that, The connecting assembly further includes a guide plate, which is adapted to the guide groove. One end of the guide plate is fixedly connected to the surface of the cover plate, and the guide plate and the snap-fit ​​are located on the same side of the cover plate. The guide plate is provided with a limiting hole, the axial direction of which is arranged along the radial direction of the cover plate, and the limiting hole is adapted to the limiting block.

7. The drying apparatus according to claim 1, characterized in that, The cover plate is provided with a plurality of first through holes and a plurality of second through holes, and the first through holes and the second through holes are arranged along the thickness direction of the cover plate.

8. The drying apparatus according to claim 2, characterized in that, The drying device also includes a viewing window, which is located on the side of the base corresponding to the first chamber and communicates with the first chamber, for observing the color change of the humidity indicator card.

9. The drying apparatus according to claim 2, characterized in that, The drying device also includes an annular sealing ring, which is sleeved on the end of the connecting pipe that is connected to the convex ring.

10. A vehicle light, characterized in that, The vehicle light includes a housing and a drying device as described in any one of claims 1 to 9. The housing is provided with the connection hole, and the connection hole is threadedly connected to the connecting tube in the placement seat through the threaded structure to realize a detachable connection between the drying device and the housing.

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