Car lamp anti-fog device and car lamp structure

Abstract

The utility model provides a car lamp anti-fog device and a car lamp structure. The car lamp anti-fog device is used for being matched with the car lamp structure. The vehicle lamp anti-fog device comprises a base, a mounting groove is formed in one side of the base, and the base is further provided with an airflow interaction structure used for communicating a vehicle lamp space of a vehicle lamp structure with an external environment space; and the placing shell group is detachably connected into the mounting groove, and a placing space for placing a drying agent is arranged in the placing shell group. The automobile lamp solves the technical problems that in the related technology, a drying agent is directly placed in a ventilation component, so that when a packaging material of the drying agent is damaged, drying agent powder in the packaging material possibly makes direct contact with the ventilation component and even scatters in the automobile lamp, the ventilation component and the automobile lamp are polluted, and the automobile lamp is damaged. Therefore, the service lives of the ventilating component and the automobile lamp are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an anti-fog device for a vehicle lamp and a vehicle lamp structure. Background Art

[0002] Car lights generally have ventilation parts to balance the pressure difference between the inside of the lights and the outside environment. Water vapor inside the lights and the outside environment will also flow through the ventilation parts. Usually, the uneven distribution of temperature inside the lights is one of the biggest factors for fogging of lights. The fogging area is often concentrated on the non-translucent surface of the lights that cannot be directly illuminated by the light source or the sharp corner transition area far away from the light source. When the water mist on the inner surface of the lights is serious, it may cause short circuit damage to the electrical components in the lights. In addition, it also has a certain impact on the light transmittance of the lights, especially when driving at night, which will cause the driver's vision to be blurred and cause safety accidents.

[0003] Therefore, in order to solve the above-mentioned problems, a desiccant for absorbing moisture is often added to the headlight. However, there is at least one of the following problems in the related art: since the desiccant is directly placed in the breathable component in the related art, when the packaging material of the desiccant is damaged, the desiccant powder in the packaging material is very likely to directly contact the breathable component, or even scatter inside the headlight, contaminating the breathable component and the headlight, thereby reducing the service life of the breathable component and the headlight. Utility Model Content

[0004] The technical problem solved by the utility model is that since the desiccant is directly placed in the air-permeable component in the related art, when the packaging material of the desiccant is damaged, the desiccant powder in the packaging material is very likely to directly contact the air-permeable component, or even scatter inside the car light, contaminating the air-permeable component and the car light, thereby reducing the service life of the air-permeable component and the car light.

[0005] In order to solve the above problems, the utility model provides an anti-fog device for a vehicle lamp, which is used to cooperate with a vehicle lamp structure; the anti-fog device for a vehicle lamp comprises: a base, one side of the base is provided with a mounting groove, and the base is also provided with an airflow interaction structure for connecting the vehicle lamp space of the vehicle lamp structure and the external environment space; a placement shell group, the placement shell group is detachably connected to the mounting groove, and a placement space for placing a desiccant is provided in the placement shell group.

[0006] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: Specifically, by placing the desiccant in the placement shell group, the effect of separating the desiccant and the airflow interaction structure is achieved, effectively avoiding the desiccant from directly contacting the powder due to damage to its packaging material, causing pollution to the base and the airflow interaction structure. Combined with the specific use of the desiccant, when the desiccant absorbs moisture for a long time, it fails in function, that is, it can no longer absorb moisture, so the desiccant needs to be replaced. Combined with the content of this technical solution, the difficulty of replacing the desiccant is reduced by detachably connecting the placement shell group and the base. It is only necessary to remove the placement shell group from the base, and there is no need to replace the entire anti-fog device for the headlights, thereby extending the service life of the anti-fog device for the headlights and the headlights.

[0007] In an example of the present invention, the housing assembly is placed and snap-connected with the base.

[0008] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: through the snap-on method, it is convenient to install the placement shell group to the base, or to remove the placement shell group from the base, which reduces the difficulty of disassembly and assembly and improves the disassembly efficiency.

[0009] In one example of the utility model, the base is provided with an elastic buckle, which is arranged at one end of the bottom end surface of the airflow interaction structure away from the mounting groove; the placement shell group is provided with a yield structure for accommodating the airflow interaction structure; wherein, when the placement shell group is installed to the mounting groove, the elastic buckle is buckled to one end of the yield structure away from the bottom end surface to limit the placement shell group from falling out of the mounting groove.

[0010] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: in combination with the assembly process of the placement shell group and the base, since the elastic buckle is set on the airflow interaction structure, it is only necessary to align the yield structure with the position of the airflow interaction structure, and then apply an extrusion force close to the base to the placement shell group. When the elastic buckle is smoothly buckled to the corresponding end face of the yield structure, it means that the assembly between the placement shell group and the base is completed. In combination with dynamic environments such as the driving process of the car, by installing the placement shell group into the installation groove, combined with the mutual cooperation of the yield structure and the airflow interaction structure, it can play a certain limiting role on the placement shell group, specifically limiting the relative movement of the placement shell group relative to the base, and improving the overall stability of the anti-fog device of the headlight installed on the headlight structure.

[0011] In one example of the utility model, the giving way structure is a mating tube on which the airflow interaction structure is mounted; a sinking groove is provided at one end of the mating tube away from the bottom end surface; wherein, when the mating tube and the airflow interaction structure form a first mating position, the elastic buckle is squeezed in the mating tube; when the mating tube and the airflow interaction structure change from the first mating position to the second mating position, the elastic buckle extends out from the mating tube and is buckled into the sinking groove.

[0012] Compared with the prior art, the technical effect achieved by adopting this technical scheme is as follows: in combination with the installation process between the placement shell group and the base, after the matching cylinder is aligned with the position of the airflow interaction structure, an extrusion force is applied to the placement shell group in the direction close to the base, so that the elastic buckle is squeezed by the matching cylinder and deformed in the axial direction close to the matching cylinder. When the placement shell group is installed in place on the base, the elastic buckle extends out of the matching cylinder, and under the action of its own elastic force to restore its initial state, the elastic buckle is buckled back to the corresponding end face of the sinking groove, which means that the matching cylinder and the airflow interaction structure are in the second matching position at this time, thereby limiting the placement shell group from falling off the base. In contrast, when the placement shell group needs to be removed from the base, the user only needs to apply an extrusion force to the elastic buckle through the position of the matching cylinder corresponding to the sinking groove so that it is close to the above-mentioned axial direction, so as to force the elastic buckle to be squeezed, that is, to be in the first matching position, so that it retracts into the matching cylinder, thereby facilitating the removal of the placement shell group from the base.

[0013] In one example of the utility model, the placement shell group includes a storage shell and a top cover that cooperate with each other: the storage shell is arranged in the installation groove, and the placement space is formed in the storage shell; the top cover is sealed on the end of the storage shell away from the base, and the top cover is snap-connected with the base; or the placement shell group is a storage shell, and the storage shell is snap-connected with the base.

[0014] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by making the top cover or the storage shell and the base be snap-fitted, the storage shell can be conveniently confined in the installation groove to prevent it from escaping from the installation groove.

[0015] In one example of the utility model, a first snap-in group is circumferentially arranged at a portion of the base where the mounting groove is arranged; when a top cover of a placement shell group is snap-connected with the base, the top cover is provided with a second snap-in group cooperating with the first snap-in group; wherein, either one of the first snap-in group and the second snap-in group includes a slot, and the other includes a buckle engaged with the slot; or when the placement shell group is a storage shell, the storage shell is provided with a third snap-in group cooperating with the first snap-in group; wherein, either one of the first snap-in group and the third snap-in group includes a slot, and the other includes a buckle engaged with the slot.

[0016] Compared with the prior art, the technical effect achieved by adopting this technical solution is: the stability of the fit between the placement shell group and the base is further improved.

[0017] In one example of the utility model, a storage shell forms a piece-taking recessed structure on its outer surface; wherein, when the storage shell is installed to the installation slot, a piece-taking gap is formed between the base and a portion of the storage shell corresponding to the piece-taking recessed structure.

[0018] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by providing a recessed structure for removing the item, it is convenient for the user to remove the placement shell group from the base.

[0019] In one example of the utility model, a side of the base on which the mounting groove is provided is defined as the inner side, and the other side opposite thereto is defined as the outer side, and a pore structure connected to an airflow interaction channel of the airflow interaction structure is provided at a position of the base corresponding to the outer side; the anti-fog device for the vehicle lamp also includes a pressure plate, which is provided on a side of the base away from the shell group and corresponding to the position of the pore structure; the pressure plate is provided with a second airflow interaction channel connected to the pore structure; wherein, when the airflow moves from the outer side toward the inner side, it passes through the second airflow interaction channel, the pore structure and the airflow interaction channel in sequence.

[0020] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by setting up a second airflow interaction channel, the time for the airflow to enter the inside from the outside is prolonged, that is, the flow path from the external environment space corresponding to the outside to the headlight space corresponding to the inside is prolonged, thereby prolonging the time for the water vapor carried by the airflow to enter the interior of the headlight, reducing the possibility of water mist generation in the headlight space, and combining with the moisture absorption effect of the desiccant placed in the shell group, the anti-fog effect of the headlight anti-fog device is improved. At the same time, the service life of the desiccant is also prolonged to a certain extent.

[0021] In one example of the utility model, the second airflow interaction channel is arranged in a multi-circle coil; a first inlet and outlet air port arranged opposite to the air hole structure is provided at the central position of the second airflow interaction channel, and a second inlet and outlet air port is provided at an eccentric position of the second airflow interaction channel away from its central position; and / or the anti-fog device for vehicle lights also includes a waterproof and breathable membrane, which covers an end of the placement shell group away from the base; and / or the waterproof and breathable membrane is arranged on a side of the pressure plate away from the base; and / or an elastic member is sandwiched between the base and the placement shell group, and the elastic member applies an elastic force to the placement shell group to make it escape from the opening direction of the mounting groove; and / or the anti-fog device for vehicle lights is also provided with an airflow valve piece, which is arranged on a side of the pressure plate close to the base and corresponds to the position of the air hole structure.

[0022] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: specifically, since the corresponding side surfaces of the pressure plate are almost completely covered by the second airflow interaction channel, the pressure plate and the base fit tightly together, and based on the multi-turn winding arrangement of the second airflow interaction channel, it can ensure that the flow path of the airflow can almost completely flow from the outside of the device into the inside of the device along the second airflow interaction channel of the multi-turn winding arrangement of the pressure plate, thereby effectively extending the flow path of the airflow from the outside to the inside, further reducing the water vapor introduced into the headlight space through the second airflow interaction channel, and reducing the possibility of water mist generation therein. Furthermore, when the waterproof and breathable membrane is sealed to the storage shell, on the one hand, the desiccant can be sealed in the storage shell to ensure that the desiccant powder cannot directly contact the breathable component or scatter inside the headlight to pollute the breathable component and the headlight. It should be noted that the desiccant here can be a powdered desiccant or a desiccant product containing packaging materials, which will not be repeated here; on the other hand, it can isolate water vapor from entering the placement space, thereby extending the time for the desiccant to deteriorate and extending its service life; in contrast, when the waterproof and breathable membrane is arranged on the side of the pressure plate away from the air base, it can reduce the effect of water vapor from the outside of the device entering the inside of the device; in addition, by arranging the elastic member, during the process of disassembling and placing the shell group, under the action of the elastic force of the elastic member, the difficulty of disassembling and placing the shell group is further reduced.

[0023] On the other hand, the utility model also provides a vehicle lamp structure, comprising: an anti-fog device for a vehicle lamp in any of the above-mentioned examples; a sealing ring, which is sleeved on the outer surface of the base; a vehicle lamp housing, and a mounting opening is provided at the rear end of the vehicle lamp housing; wherein, when the anti-fog device for a vehicle lamp is installed to the vehicle lamp housing through the mounting opening, the sealing ring is clamped between the anti-fog device for the vehicle lamp and the vehicle lamp housing.

[0024] Compared with the prior art, the technical effect achieved by adopting this technical solution is: it can achieve the corresponding technical effect in any of the above-mentioned technical solutions, which will not be repeated here.

[0025] After adopting the technical solution of the utility model, the following technical effects can be achieved:

[0026] (1) By placing the desiccant in the placement shell group, the desiccant and the airflow interaction structure are separated from each other, effectively preventing the powder from directly contacting the desiccant due to damage to its packaging material, causing contamination of the base and the airflow interaction structure. In combination with the content of this technical solution, the placement shell group and the base are detachably connected, which reduces the difficulty of replacing the desiccant. It is only necessary to remove the placement shell group from the base without replacing the entire headlight anti-fog device, thereby extending the service life of the headlight anti-fog device and the headlight.

[0027] (2) In the assembly process of the placement shell group and the base, since the elastic buckle is set on the airflow interaction structure, it is only necessary to align the clearance structure with the position of the airflow interaction structure, and then apply an extrusion force close to the base to the placement shell group. When the elastic buckle is successfully buckled to the corresponding end face of the clearance structure, it means that the placement shell group and the base are assembled. In combination with dynamic environments such as the driving process of the car, by installing the placement shell group into the installation groove, combined with the mutual cooperation of the clearance structure and the airflow interaction structure, it can play a certain limiting role on the placement shell group, specifically limiting the relative movement of the placement shell group relative to the base, and improving the overall stability of the anti-fog device of the headlight installed on the headlight structure.

[0028] (3) By making the top cover or the storage shell and the base snap-fit, the storage shell can be confined in the installation groove to prevent it from falling out of the installation groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic structural diagram of an anti-fog device for vehicle lights provided in an embodiment of the utility model.

[0031] Figure 2 for Figure 1 Exploded diagram of .

[0032] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0033] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0034] Figure 5 for Figure 1 Schematic diagram of the structure of the anti-fog device for vehicle lights from another perspective.

[0035] Figure 6 for Figure 5 Cross-sectional view along CC direction.

[0036] Figure 7 for Figure 6 Enlarged view of point D in the middle.

[0037] Figure 8 A schematic structural diagram of another anti-fog device for vehicle lights provided in an embodiment of the utility model.

[0038] Fig. 9 for Figure 8 Exploded diagram of .

[0039] Fig.10 for Figure 8 Schematic diagram of the structure of the anti-fog device for vehicle lights from another perspective.

[0040] Fig.11 for Fig.10 Cross-sectional view along the EE direction.

[0041] Fig.12 for Fig.11 Enlarged view of point F in the middle.

[0042] Fig.13 This is a schematic diagram of the structure of the base from another perspective.

[0043] Description of reference numerals:

[0044] 100, anti-fog device for headlights; 101, outer side; 102, inner side; 103, axis; 10, base; 11, mounting groove; 111, bottom end surface; 12, air flow interaction structure; 121, air hole structure; 122, first air flow interaction channel; 13, elastic buckle; 14, slot; 20, placement shell group; 21, placement space; 22, yielding structure; 222, matching cylinder; 223, sinking groove; 23, top cover; 231, air vent; 232, buckle; 24, storage shell; 241, item removal recessed structure; 25, item removal gap; 30, sealing ring; 40, waterproof and breathable membrane; 50, pressure plate. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] See also Figure 1 , which is a schematic diagram of the structure of a vehicle lamp anti-fog device 100 provided by an embodiment of the utility model. Figure 2-Figure 13 Specifically, the anti-fog device 100 for a vehicle lamp includes, for example, a base 10 and a placement shell group 20. A mounting groove 11 is provided on one side of the base 10, and the base 10 is also provided with an airflow interaction structure 12 for connecting the vehicle lamp space of the vehicle lamp structure and the external environment space; the placement shell group 20 is detachably connected to the mounting groove 11, and a placement space 21 for placing a desiccant is provided in the placement shell group 20.

[0047] Specifically, by placing the desiccant in the placement shell group 20, the desiccant and the airflow interaction structure 12 are separated from each other, and the desiccant powder is effectively prevented from directly contacting the desiccant due to damage of its packaging material, thereby contaminating the base 10 and the airflow interaction structure 12. In combination with the specific use of the desiccant, when the desiccant absorbs moisture for a long time, it becomes functionally ineffective, that is, it can no longer absorb moisture, and the desiccant needs to be replaced. In combination with the content of the present technical solution, the placement shell group 20 is detachably connected to the base 10, which reduces the difficulty of replacing the desiccant. It is only necessary to remove the placement shell group 20 from the base 10 and replace it with a new placement shell group 20. There is no need to replace the entire anti-fog device 100 for the headlights, thereby extending the service life of the anti-fog device 100 for the headlights and the headlights.

[0048] Preferably, the housing assembly 20 is placed in snap connection with the base 10 .

[0049] Combination Figure 2-Figure 7 , Fig.13 Furthermore, the base 10 is provided with an elastic buckle 13, which is arranged at one end of the airflow interaction structure 12 away from the bottom end surface 111 of the mounting groove 11; the placement shell group 20 is provided with a yield structure 22 for accommodating the airflow interaction structure 12; wherein, when the placement shell group 20 is installed in the mounting groove 11, the elastic buckle 13 is buckled to one end of the yield structure 22 away from the bottom end surface 111 to limit the placement shell group 20 from escaping from the mounting groove 11.

[0050] Preferably, the giving way structure 22 is a mating tube 222 that is sleeved with the airflow interaction structure 12; a sinking groove 223 is provided at one end of the mating tube 222 away from the bottom end surface 111; wherein, when the mating tube 222 and the airflow interaction structure 12 form a first mating position, the elastic buckle 13 is squeezed in the mating tube 222; when the mating tube 222 and the airflow interaction structure 12 are changed from the first mating position to the second mating position, the elastic buckle 13 extends out from the mating tube 222 and is buckled into the sinking groove 223.

[0051] In combination with the installation process between the placement shell group 20 and the base 10, after the matching cylinder 222 is aligned with the position of the airflow interaction structure 12, an extrusion force is applied to the placement shell group 20 toward the direction close to the base 10, so that the elastic buckle 13 is squeezed by the matching cylinder 222 and deformed toward the axis 103 close to the matching cylinder 222. When the placement shell group 20 is installed in place in the base 10, under the action of its own elastic force to restore its initial state, the elastic buckle 13 is buckled back to the corresponding end face of the sinking groove 223, which means that the matching cylinder 222 and the airflow interaction structure 12 are in the second matching position at this time, thereby limiting the placement shell group 20 from escaping from the base 10.

[0052] In contrast, when the placement shell group 20 needs to be removed from the base 10, the user only needs to apply an extrusion force to the elastic buckle 13 at the position of the sinking groove 223 corresponding to the mating tube 222, so that the elastic buckle 13 is pressed in the direction close to the above-mentioned axis 103, so as to force the elastic buckle 13 to be squeezed, that is, to be in the first mating position, so that it retracts into the mating tube 222, thereby facilitating the removal of the placement shell group 20 from the base 10.

[0053] On the other hand, the present invention also provides another anti-fog device 100 for vehicle lamps. Figure 8-Figure 13 Different from the above-mentioned example, that is, different from the assembly method of using the elastic buckle 13 to buckle the yielding structure 22, in this embodiment, the placement shell assembly 20 includes a receiving shell 24 and a top cover 23 that cooperate with each other: the receiving shell 24 is arranged in the installation groove 11, and the placement space 21 is formed in the receiving shell 24; the top cover 23 covers the end of the receiving shell 24 away from the base 10, and the top cover 23 is snapped with the base 10. For example, the top cover 23 is also provided with a plurality of vent holes 231.

[0054] Different from the above-mentioned specific example in which the placement shell group 20 includes a storage shell 24 and a top cover 23 that cooperate with each other, in another specific example, the placement shell group 20 is a storage shell 24 that is snap-connected with the base 10.

[0055] Preferably, the base 10 is circumferentially provided with a first snap-fit ​​group around the outer side of the mounting groove 11; the top cover 23 is provided with a second snap-fit ​​group cooperating with the first snap-fit ​​group; wherein, either the first snap-fit ​​group or the second snap-fit ​​group includes a slot 14, and the other includes a buckle 232 snapped with the slot 14.

[0056] Alternatively, when the placement shell group 20 is a storage shell 24, the storage shell 24 is provided with a third snap-fit ​​group that cooperates with the first snap-fit ​​group; wherein, either the first snap-fit ​​group or the third snap-fit ​​group includes a slot 14, and the other includes a buckle 232 that is snap-fitted with the slot 14.

[0057] Preferably, the storage shell 24 forms a pickup recessed structure 241 on its outer surface; wherein, when the storage shell 24 is installed in the installation slot 11, a pickup gap 25 is formed between the base 10 and the portion of the storage shell 24 corresponding to the pickup recessed structure 241.

[0058] Preferably, the side of the base 10 provided with the mounting groove 11 is defined as the inner side 102, and the other side oppositely provided is defined as the outer side 101, and the position of the base 10 corresponding to the outer side 101 is provided with a pore structure 121 connected with the first airflow interaction channel 122 of the airflow interaction structure 12; the anti-fog device 100 for vehicle lights also includes a pressure plate 50, which is provided on the side of the base 10 away from the placement shell group 20 and is provided corresponding to the position of the pore structure 121; the pressure plate 50 is provided with a second airflow interaction channel connected with the pore structure 121; wherein, when the airflow moves from the outer side 101 toward the inner side 102, it passes through the second airflow interaction channel, the pore structure 121 and the first airflow interaction channel 122 in sequence.

[0059] By setting up the second airflow interaction channel, the time for the airflow to enter the inner side 102 from the outer side 101 is extended, that is, the flow path from the external environment space corresponding to the outer side 101 to the headlight space corresponding to the inner side 102 is extended, thereby extending the time for the water vapor carried by the airflow to enter the interior of the headlight, reducing the possibility of water mist generation in the headlight space, and combining with the moisture absorption effect of the desiccant placed in the shell group 20, the anti-fog effect of the headlight anti-fog device 100 is improved. At the same time, the service life of the desiccant is also extended to a certain extent.

[0060] Preferably, the second airflow interaction channel is arranged in a multi-circle coil; a first inlet and outlet air port which is arranged opposite to the pore structure 121 is provided at the central position of the second airflow interaction channel, and a second inlet and outlet air port is provided at an eccentric position of the second airflow interaction channel away from its central position; and / or the anti-fog device 100 for vehicle lights also includes a waterproof breathable membrane 40, which covers an end of the placement shell group 20 away from the base 10; and / or the waterproof breathable membrane 40 is arranged on a side of the pressure plate 50 away from the base 10; and / or an elastic member is sandwiched between the base 10 and the placement shell group 20, and the elastic member applies an elastic force to the placement shell group 20 to make it escape from the opening direction of the mounting groove 11; and / or the anti-fog device 100 for vehicle lights is also provided with an airflow valve piece, which is arranged on a side of the pressure plate 50 close to the base 10 and corresponds to the position of the pore structure 121.

[0061] Specifically, in a specific instance in which the placement shell group 20 is composed of a storage shell 24 and a top cover 23, the waterproof breathable membrane 40 can be installed to the end of the storage shell 24 away from the base 10, that is, the waterproof breathable membrane 40 is arranged between the storage shell 24 and the top cover 23.

[0062] On the other hand, the utility model also provides a vehicle lamp structure. Specifically, the vehicle lamp structure includes, for example, a vehicle lamp housing, a sealing ring 30 and a vehicle lamp anti-fog device 100 as in the above example; the sealing ring 30 is sleeved on the outer surface of the base 10; the rear end of the vehicle lamp housing is provided with an installation opening; wherein, when the vehicle lamp anti-fog device 100 is installed to the vehicle lamp housing through the installation opening, the sealing ring 30 is sandwiched between the vehicle lamp anti-fog device 100 and the vehicle lamp housing. In this embodiment, the corresponding technical effects in any of the above technical solutions can be achieved, which will not be repeated here.

[0063] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A vehicle lamp anti-fog device, the vehicle lamp anti-fog device is used to cooperate with the vehicle lamp structure; characterized in that: The anti-fog device for vehicle lamps comprises: A base (10), wherein a mounting groove (11) is provided on one side of the base (10), and the base (10) is also provided with an airflow interaction structure (12) for connecting a headlight space of the headlight structure and an external environment space; A placement shell group (20) is detachably connected to the installation groove (11), and a placement space (21) for placing a desiccant is provided in the placement shell group (20).

2. The anti-fog device for vehicle lights according to claim 1, characterized in that: The placement shell group (20) is snap-connected with the base (10).

3. The anti-fog device for vehicle lamps according to claim 2, characterized in that: The base (10) is provided with an elastic buckle (13), and the elastic buckle (13) is arranged at an end of the bottom end surface (111) of the airflow interaction structure (12) away from the installation groove (11); The placement shell group (20) is provided with a giving way structure (22) for accommodating the airflow interaction structure (12); When the placement shell group (20) is installed in the installation groove (11), the elastic buckle (13) is buckled to an end of the clearance structure (22) away from the bottom end surface (111) to prevent the placement shell group (20) from falling out of the installation groove (11).

4. The anti-fog device for vehicle lights according to claim 3, characterized in that: The said giving way structure (22) is a matching tube (222) which is sleeved with the said airflow interaction structure (12); The end of the matching cylinder (222) away from the bottom end surface (111) is provided with a sinking groove (223); Wherein, when the matching cylinder (222) and the airflow interaction structure (12) form a first matching position, the elastic buckle (13) is squeezed inside the matching cylinder (222); When the matching tube (222) and the airflow interaction structure (12) are changed from the first matching position to the second matching position, the elastic buckle (13) extends out from the matching tube (222) and is buckled into the sinking groove (223).

5. The anti-fog device for vehicle lamps according to claim 2, characterized in that: The placement shell group (20) comprises a receiving shell (24) and a top cover (23) that cooperate with each other: The storage shell (24) is arranged inside the installation groove (11), and the placement space (21) is formed in the storage shell (24); The top cover (23) covers an end of the storage shell (24) away from the base (10), and the top cover (23) is snap-connected with the base (10); or The placement shell group (20) is a storage shell (24), and the storage shell (24) is snap-connected with the base (10).

6. The anti-fog device for vehicle lamps according to claim 5, characterized in that: A first clamping group is circumferentially arranged at a portion of the base (10) surrounding the mounting groove (11); When the top cover (23) of the housing assembly (20) is snap-fitted to the base, the top cover (23) is provided with a second snap-fitting group that cooperates with the first snap-fitting group; wherein either the first snap-fitting group or the second snap-fitting group includes a snap-fitting slot (14), and the other of the two includes a snap-fitting buckle (232) snap-fitted to the snap-fitting slot (14); or When the placement shell group (20) is a storage shell (24), the storage shell (24) is provided with a third snap-fit ​​group that cooperates with the first snap-fit ​​group; wherein either the first snap-fit ​​group or the third snap-fit ​​group includes a slot (14), and the other includes a buckle (232) that is snap-fitted with the slot (14).

7. The anti-fog device for vehicle lamps according to claim 5 or 6, characterized in that: The storage shell (24) is formed with a piece-taking recessed structure (241) on its outer surface; When the storage shell (24) is installed in the installation groove (11), a pickup gap (25) is formed between the base (10) and the portion of the storage shell (24) corresponding to the pickup recessed structure (241).

8. The anti-fog device for vehicle lamps according to any one of claims 1 to 6, characterized in that: The side of the base (10) on which the mounting groove (11) is provided is defined as the inner side (102), and the other side opposite thereto is defined as the outer side (101); the base (10) is provided with an air hole structure (121) at a position corresponding to the outer side (101) and connected to a first air flow interaction channel (122) of the air flow interaction structure (12); The vehicle lamp anti-fog device further comprises a pressure plate (50), the pressure plate (50) being arranged on a side of the base (10) away from the placement shell group (20) and arranged corresponding to the position of the pore structure (121); the pressure plate (50) being provided with a second airflow interaction channel communicating with the pore structure (121); When the airflow moves from the outer side (101) toward the inner side (102), it passes through the second airflow interaction channel, the pore structure (121) and the first airflow interaction channel (122) in sequence.

9. The anti-fog device for vehicle lamps according to claim 8, characterized in that: The second airflow interaction channel is arranged in a coiled manner with multiple circles; a first air inlet and outlet port is arranged directly opposite to the air hole structure (121) at the central position of the second airflow interaction channel, and a second air inlet and outlet port is arranged at an eccentric position away from the central position of the second airflow interaction channel; and / or The anti-fog device for vehicle lamps further comprises a waterproof breathable membrane (40), wherein the waterproof breathable membrane (40) covers an end of the placement shell group (20) away from the base (10); and / or the waterproof breathable membrane (40) is arranged on a side of the pressure plate (50) away from the base (10); and / or An elastic member is sandwiched between the base (10) and the placement shell group (20), and the elastic member applies an elastic force to the placement shell group (20) to cause it to escape from the opening direction of the installation groove (11); and / or The anti-fog device for vehicle lights is also provided with an airflow valve piece, which is arranged on a side of the pressure plate (50) close to the base (10) and corresponds to the position of the air hole structure (121).

10. A vehicle lamp structure, characterized in that: include: The anti-fog device for vehicle lights according to any one of claims 1 to 9; A sealing ring (30), wherein the sealing ring (30) is sleeved on the outer surface of the base (10); A vehicle lamp housing, wherein a mounting opening is provided at a rear end of the vehicle lamp housing; Wherein, when the anti-fog device for the vehicle lamp is installed on the vehicle lamp housing through the installation opening, the sealing ring (30) is sandwiched between the anti-fog device for the vehicle lamp and the vehicle lamp housing.

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