Dehumidifier for vehicle lamps and lamps including the same

Abstract

A dehumidifying device for vehicle lamps is disclosed. [Solution] The dehumidifier for a vehicle lamp includes a dust cover 100 in which at least one first communication hole is formed; a moisture-absorbing cover 200 provided on the dust cover 100, which receives a desiccant that absorbs moisture contained in the air and in which at least one second communication hole corresponding to the communication hole is formed; and a valve 300 that selectively opens the first communication hole and the second communication hole through a first bracket 320 and a second bracket 330 which are operated by a shape memory alloy that deforms due to the temperature difference between the inside and outside of the dust cover 100.

Description

Technical Field

[0001] The disclosure of the present invention relates to a dehumidifying device for a vehicle lamp and a lamp including the same. More specifically, by efficiently controlling the humidity inside the vehicle lamp, condensation of the lamp due to moisture is prevented, and damage to electronic devices due to moisture is prevented, thereby improving the durability of the lamp. The present invention relates to a dehumidifying device for a vehicle lamp.

Background Art

[0002] Generally, vehicles are equipped with various types of lamps that perform a lighting function for easy viewing of objects located around during night driving and a signaling function for informing other vehicles and road users of the driving state of the vehicle.

[0003] For example, lamps that perform a lighting function include headlamps and fog lamps, and lamps that perform a signaling function include turn signal lamps, tail lamps, brake lamps, etc.

[0004] In such a vehicle lamp, the temperature inside the lamp changes when the light source module provided inside is turned on or off. That is, when the light source module is turned on, the temperature rises, causing the air inside the lamp to expand, and the air is discharged to the outside through the vent hole provided in the lamp. Conversely, when the light source module is turned off and the air inside the lamp contracts, the outside air flows into the inside of the lamp through the vent hole. As a result, when the outside air flows into the inside of the lamp, the moisture contained in the air also flows into the inside of the lamp.

[0005] However, since the lamp is exposed outside the vehicle, after driving, when the vehicle is washed or parked in an environment with a low external temperature for a long time, the temperature of the lamp may drop below the dew point, resulting in condensation inside the lamp, which may cause a failure in the light source module of the lamp or a problem of reduced lamp function.

[0006] The information contained in this background section is prepared to enhance understanding of the background of the disclosure and may include information that is not prior art already known to a person with ordinary skill in the art to which this technology belongs. [Overview of the project] [Problems that the invention aims to solve]

[0007] The problem that this invention aims to solve is to provide a dehumidifying device for vehicle lamps and a lamp including the same, which can improve the performance of the desiccant. [Means for solving the problem]

[0008] A dehumidifying device for a vehicle lamp according to one embodiment may include: a dust cover having at least one first communication hole; a moisture-absorbing cover provided in the dust cover, which receives a desiccant that absorbs moisture contained in the air and has at least one second communication hole corresponding to the first communication hole; and a valve that selectively opens the first and second communication holes through a first bracket and a second bracket, which are operated by a shape memory alloy that deforms due to the temperature difference between the inside and outside of the dust cover.

[0009] In other embodiments, the valve may include an opening / closing plate formed of a shape memory alloy that deforms into a first shape and a second shape upon temperature change, causing the first bracket and the second bracket to reciprocate in a set direction; a first bracket provided on one side of the opening / closing plate, having a first shut-off portion corresponding to the first communication hole; and a second bracket provided on the other side of the opening / closing plate, having a second shut-off portion corresponding to the second communication hole.

[0010] In other embodiments, the first bracket and the second bracket may be provided so as to be movable together via a connecting member.

[0011] In other embodiments, the connecting member may include a hook groove formed in either the first bracket or the second bracket, and a hook projection formed in the other of the first bracket or the second bracket that engages with the hook groove.

[0012] In other embodiments, guide members may be further included to guide the movement of the first bracket and the second bracket.

[0013] In other embodiments, the guide member may include a first guide boss formed in the dust cover; a first guide hole formed in the first bracket and movably inserted into the first guide boss; a second guide boss formed in the moisture-absorbing cover; and a second guide hole formed in the second bracket and movably inserted into the second guide boss.

[0014] In other embodiments, the valve may further include O-rings provided in the first shut-off portion and the second shut-off portion, respectively.

[0015] In other embodiments, when the deformation of the opening / closing plate causes the first bracket and the second bracket to selectively block the first communication hole and the second communication hole, the invention may further include a fixing member for selectively fixing the opening / closing plate to the first and second positions.

[0016] In other embodiments, the fixing member may include a first bolt provided on the dust cover; a second bolt provided on the moisture-absorbing cover; and magnetic materials provided on the first bolt and the second bolt, respectively, to which the opening and closing plate is selectively attached.

[0017] In other embodiments, one end of the opening / closing plate may be a fixed end that is secured between the dust cover and the moisture-absorbing cover, and the other end of the opening / closing plate may be a free end that is inserted between the first bracket and the second bracket.

[0018] In other embodiments, if the ambient temperature around the valve is below the set temperature, the opening / closing plate of the valve is deformed into the first shape, and due to the deformation of the opening / closing plate, the other end of the opening / closing plate causes the first bracket and the second bracket to move, so that the first blocking portion of the first bracket blocks the first communication hole and the second blocking portion of the second bracket opens the second communication hole.

[0019] In other embodiments, the first shape may be such that the other end of the opening / closing plate is deformed to move the first bracket and the second bracket toward the first communication hole.

[0020] In other embodiments, if the ambient temperature around the valve is above a set temperature, the opening / closing plate of the valve is deformed into the second shape, and due to the deformation of the opening / closing plate, the other end of the opening / closing plate moves the first bracket and the second bracket, so that the first blocking portion of the first bracket opens the first communication hole, and the second blocking portion of the second bracket blocks the second communication hole.

[0021] In other embodiments, the second shape may be such that the other end of the opening / closing plate is deformed to move the first bracket and the second bracket toward the second communication hole.

[0022] In other embodiments, both ends of the opening / closing plate may be fixed ends that are fixed between the dust cover and the moisture-absorbing cover, and the central part of the opening / closing plate may be a free end that is inserted between the first bracket and the second bracket.

[0023] In other embodiments, when the ambient temperature of the valve is lower than the set temperature, the opening / closing plate of the valve is deformed into the first shape, and due to the deformation of the opening / closing plate, the first bracket and the second bracket are moved by the central portion of the opening / closing plate, so that the first blocking portion of the first bracket blocks the first communication hole, and the second blocking portion of the second bracket may open the second communication hole.

[0024] In other embodiments, when the ambient temperature of the valve is equal to or higher than the set temperature, the opening / closing plate of the valve is deformed into the second shape, and due to the deformation of the opening / closing plate, the first bracket and the second bracket are moved by the central portion of the opening / closing plate, so that the first blocking portion of the first bracket opens the first communication hole, and the second blocking portion of the second bracket may block the second communication hole.

[0025] In other embodiments, it may further include a membrane provided in the second communication hole to prevent moisture outside the dust cover from flowing in.

[0026] The vehicle lamp according to an embodiment may include the dehumidifying device.

Advantages of the Invention

[0027] According to embodiments of the present invention, when the vehicle is parked, external humid air is prevented from flowing into the dehumidifying device and the lamp, thereby preventing the performance of the desiccant from deteriorating.

[0028] And when the vehicle is running, the humid air absorbed by the desiccant is discharged to the outside of the dehumidifying device, so that the performance of the desiccant can be improved.

[0029] In addition, effects obtained or predicted by the embodiments of the present disclosure will be directly or implicitly disclosed in the detailed description of the present disclosure. That is, various effects predicted by the present disclosure will be disclosed in the detailed description described later. [Brief explanation of the drawing]

[0030] These drawings are for illustrative purposes only and should not be construed as limiting the technical ideas of this disclosure to those drawings. [Figure 1] Figure 1 is a cross-sectional view showing the configuration of a vehicle lamp according to one embodiment. [Figure 2] Figure 2 is a perspective view showing the configuration of a dehumidifier according to one embodiment. [Figure 3] Figure 3 is a perspective view showing the configuration of a dehumidifying device according to one embodiment. [Figure 4] Figure 4 is an exploded perspective view showing the configuration of a dehumidifier according to one embodiment. [Figure 5] Figure 5 is a perspective view showing the configuration of the dust cover of a dehumidifier according to one embodiment. [Figure 6] Figure 6 is a perspective view showing the configuration of the moisture-absorbing cover of a dehumidifying device according to one embodiment. [Figure 7] Figure 7 is a perspective view showing the configuration of a valve in a dehumidifier according to one embodiment. [Figure 8] Figure 8 is an exploded perspective view showing the configuration of a valve in a dehumidifier according to one embodiment. [Figure 9] Figure 9 is a diagram illustrating the operation of a dehumidifier according to one embodiment. [Figure 10] Figure 10 is a diagram illustrating the operation of a dehumidifier according to one embodiment. [Figure 11] Figure 11 is an exploded perspective view showing the configuration of a dehumidifier according to another embodiment. [Figure 12] Figure 12 is an exploded perspective view showing the configuration of a valve in a dehumidifier according to another embodiment. [Figure 13] Figure 13 is a perspective view showing the configuration of the dust cover of a dehumidifier according to another embodiment. [Figure 14] Figure 14 is a perspective view showing the configuration of the moisture-absorbing cover of a dehumidifying device according to another embodiment. [Figure 15]Figure 15 is a diagram illustrating the operation of a dehumidifier according to another embodiment. [Figure 16] Figure 16 is a diagram illustrating the operation of a dehumidifier according to another embodiment.

[0031] The aforementioned referenced drawings should be understood not necessarily as being presented in conjunction with the accumulation, but rather as somewhat simplified representations of various preferred features illustrating the fundamental principles of this disclosure. For example, certain design features of this disclosure, including specific sizes, orientations, positions, and shapes, are determined in part by the specific intended application and usage environment. [Modes for carrying out the invention]

[0032] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise. The terms “comprises” and / or “comprising,” as used herein, identify the presence of the mentioned features, integers, steps, acts, components and / or parts, but should also be understood not to exclude the presence or addition of one or more other features, integers, steps, acts, components, and / or groups thereof. As used herein, the terms “and / or” include any one or all combinations of the items listed relatedly.

[0033] The present disclosure will be described in detail with reference to the attached drawings so that it can be easily implemented by a person with ordinary skill in the art to which the present disclosure pertains. However, the present disclosure can be implemented in a variety of different forms and is not limited to the embodiments described herein.

[0034] To clearly explain this disclosure, explanatory parts have been omitted, and the same or similar reference numerals are used throughout the specification for identical or similar components.

[0035] Furthermore, the dimensions and thicknesses of each component shown in the drawings are arbitrarily indicated for explanatory purposes, and this disclosure is not necessarily limited to those shown in the drawings. The thicknesses are enlarged to clearly represent various parts and areas.

[0036] The suffixes "module" and / or "part" used with respect to the constituent elements in the following description are added or mixed solely for the sake of ease of specification drafting and do not have any distinct meaning or role of their own.

[0037] Furthermore, in describing the disclosed embodiments, if it is determined that a specific explanation of the relevant prior art may obscure the gist of the embodiments disclosed herein, such detailed explanation will be omitted.

[0038] Furthermore, the accompanying drawings are merely intended to facilitate understanding of the embodiments disclosed herein, and should not be understood as limiting the technical ideas disclosed herein, and should be understood to include any modifications, equivalents, or substitutions that fall within the ideas and scope of this disclosure.

[0039] Terms including ordinal numbers, such as "first," "second," etc., are used to describe a variety of components, but these components are not limited by such terms.

[0040] In the following explanation, expressions written in the singular can be interpreted as either singular or plural unless explicitly stated as "one" or "single."

[0041] The aforementioned terms are used solely for the purpose of distinguishing one component from another.

[0042] A dehumidifying device for a vehicle lamp according to one embodiment will be described in detail below with reference to the attached drawings.

[0043] Figure 1 is a cross-sectional view showing the configuration of a vehicle lamp according to one embodiment.

[0044] As shown in Figure 1, the vehicle lamp 10 according to one embodiment may be provided on a lamp 10 installed in a vehicle.

[0045] The vehicle lamp 10 may include a lens 11, a housing 12, a light source module 14, and a dehumidifier 1000.

[0046] The lens 11 is coupled to the housing 12, allowing the light from the light source module 14 to be emitted to the outside. The lens 11 and the housing 12 are coupled to form the overall shape of the vehicle lamp 10, and the light source module 14 may be provided inside the shape formed by the coupling of the lens 11 and the housing 12.

[0047] The housing 12 has a light source insertion opening 13 into which a light source module 14 can be inserted, and the light source module 14 can be replaced through the light source insertion opening 13 as needed.

[0048] The light source module 14 emits light, and the light emitted from the light source module 14 can be diverted to the outside of the lamp 10 through the lens 11.

[0049] The dehumidifier 1000 is provided in the light source inlet 13, and the dehumidifier 1000 may be coupled to the light source inlet 13 so as to close the light source inlet 13. However, the coupling method of the dehumidifier 1000 according to the embodiment is not limited to this.

[0050] Next, a dehumidifying device for a vehicle lamp according to one embodiment will be described in detail with reference to the attached drawings.

[0051] Figures 2 and 3 are perspective views showing the configuration of a dehumidifier according to one embodiment. Figure 4 is an exploded perspective view showing the configuration of a dehumidifier according to one embodiment.

[0052] As shown in Figures 2 to 4, a dehumidifier for a vehicle lamp according to one embodiment may include a dust cover 100 in which a first communication hole 110 is formed, a moisture-absorbing cover 200 in which a second communication hole 210 corresponding to the first communication hole 110 is formed, and a valve 300 for selectively opening the first communication hole 110 and the second communication hole 210.

[0053] The dust cover 100 is provided at the light source inlet 13 of the vehicle lamp 10, and may have a receiving space formed inside. The dust cover 100 may be formed in the shape of a concave cup or container with an opening toward the housing 12 and lens 11.

[0054] The dust cover 100 and the moisture-absorbing cover 200 may be joined together to seal the receiving space. For this purpose, gaskets may be provided on the outer casings of the dust cover 100 and the moisture-absorbing cover 200.

[0055] Referring to Figure 5, the first communication holes 110 formed in the dust cover 100 may be formed to penetrate the inside and outside of the dust cover 100. The first communication holes 110 formed in the dust cover 100 may be formed in pairs.

[0056] A first valve fixing portion 120 may be formed protruding from one side of the inner surface of the dust cover 100, projecting toward the internal space of the lamp 10 (or the moisture-absorbing cover 200). A valve fixing projection 130 may be formed at the end of the first valve fixing portion 120. Multiple valve fixing projections 130 may be formed.

[0057] A first guide boss 140 may be formed on the other side of the inner surface of the dust cover 100, projecting toward the internal space of the lamp 10 (or the moisture-absorbing cover 200). The first valve fixing portion 120 and the first guide boss 140 may be formed on both sides of the first communication hole 110, respectively.

[0058] A first bolt fastening opening 150 is formed in the center of a pair of first communication holes 110, and a first bolt 160 can be fastened to the first bolt fastening opening 150. A magnetic material 170 may be provided at the end of the first bolt 160. The other end of the opening / closing plate 310 may be selectively attached to the magnetic material 170 provided on the first bolt 160.

[0059] A dehumidifying device for a vehicle lamp according to one embodiment may include a membrane 400 provided in a first communication hole 110 to block moisture from flowing into the lamp 10. The membrane 400 is bonded around the first communication hole 110, and the first communication hole 110 can be sealed by the membrane 400. The membrane 400 may be made of a material that does not allow moisture (water) to pass through but allows humidity (water vapor) to pass through. This prevents water from flowing into the lamp 10 from the outside, and allows humidity inside the lamp 10 to be discharged to the outside.

[0060] The moisture-absorbing cover 200 may be attached to the dust cover 100. When the moisture-absorbing cover 200 is attached to the dust cover 100, the receiving space can be sealed by the attachment of the moisture-absorbing cover 200 and the dust cover 100.

[0061] The moisture-absorbing cover 200 may receive a desiccant 270 that absorbs moisture contained in the air. The desiccant 270 used in the vehicle lamp 10 can absorb moisture by solidifying through a chemical reaction with moisture. The desiccant 270 absorbs moisture, and the moisture absorbed by the desiccant 270 may be released to the outside.

[0062] Referring to Figure 6, the second communication holes 210 formed in the moisture-absorbing cover 200 may be formed in a shape corresponding to the first communication holes 110 formed in the dust cover 100. The second communication holes 210 formed in the moisture-absorbing cover 200 may be formed in pairs.

[0063] A second valve fixing portion 220 protruding toward the dust cover 100 may be formed on one side of the inner surface of the moisture-absorbing cover 200. A valve fixing groove 230 corresponding to the valve fixing projection 130 of the first valve fixing portion 120 may be formed at the end of the second valve fixing portion 220. The valve fixing projection 130 of the first valve fixing portion 120 may be inserted into the valve fixing groove 230. Multiple valve fixing grooves 230 may be formed. The second valve fixing portion 220 may be formed in a position corresponding to the first valve fixing portion 120. For example, the first valve fixing portion 120 and the second valve fixing portion 220 may be arranged to face each other.

[0064] A second guide boss 240 protruding toward the dust cover 100 may be formed on the other side of the inner surface of the moisture-absorbing cover 200. The second valve fixing portion 220 and the second guide boss 240 may be formed on both sides of the second communication hole 210, respectively.

[0065] A second bolt fastening opening 250 is formed in the center of a pair of second communication holes 210, and a second bolt 260 can be fastened to the second bolt fastening opening 250. A magnetic material 170 may be provided at the end of the second bolt 260. The other end of the opening / closing plate 310 may be selectively attached to the magnetic material 170 provided on the second bolt 260.

[0066] Valve 300 can selectively open the first communication hole 110 and the second communication hole 210 by a shape memory alloy that deforms due to the temperature difference between the inside and outside of the dust cover 100 (or a change in the ambient temperature around valve 300). When the first communication hole 110 is blocked by valve 300, the second communication hole 210 is opened, and when the first communication hole 110 is opened, the second communication hole 210 can be blocked. Valve 300 may be provided between the dust cover and the moisture-absorbing cover 200.

[0067] Referring to Figures 7 and 8, the valve 300 may include an opening / closing plate 310, a first bracket 320, and a second bracket 330.

[0068] The opening / closing plate 310 is made of a shape memory alloy and deforms into a first shape and a second shape due to temperature changes, allowing the first bracket 320 and the second bracket 330 to reciprocate in a set direction.

[0069] The first shape is the shape of the opening / closing plate 310 when the ambient temperature around the opening / closing plate 310 is below the set temperature (for example, when the vehicle is parked), in which case the lamp 10 may be turned off and the vehicle may be parked. When the shape of the opening / closing plate 310 is the first shape, the first communication hole 110 may be blocked and the second communication hole 210 may be open. The first shape may also be a shape in which the other end of the opening / closing plate 310 is deformed to move the first bracket 320 and the second bracket 330 toward the first communication hole 110.

[0070] The second shape is the shape of the opening / closing plate 310 when the ambient temperature around the opening / closing plate 310 is above the set temperature (for example, when the vehicle is in motion), in which case the vehicle may be in motion with the lamp 10 lit. When the shape of the opening / closing plate 310 is the second shape, the first communication hole 110 may be opened and the second communication hole 210 may be blocked. The second shape may be a shape in which the other end of the opening / closing plate 310 is deformed to move the first bracket 320 and the second bracket 330 toward the second communication hole 210.

[0071] The opening / closing plate 310 is formed in a substantially plate shape, and opening / closing fixing holes 311 may be formed at its ends. The opening / closing fixing holes 311 may be formed to correspond to the valve fixing projections 130 of the first valve fixing portion 120 formed on the dust cover 100.

[0072] One end of the opening / closing plate 310 may be fixed between the dust cover 100 and the moisture absorption cover 200, and the other end of the opening / closing plate 310 may be inserted between the first bracket 320 and the second bracket 330. In this way, one end of the opening / closing plate 310 may be a fixed end and the other end may be a free end.

[0073] The first bracket 320 may include a first bracket 320 body and a first blocking portion 321 formed on the first bracket 320 body. The first blocking portion 321 may be formed in a shape corresponding to a first communication hole 110 formed in the dust cover 100. If necessary, a pair of first blocking portions 321 may be formed to correspond to a pair of first communication holes 110. When the first blocking portion 321 is inserted into the first communication hole 110 by the movement of the first bracket 320, the first communication hole 110 can be blocked. The first blocking portion 321 is provided with an O-ring 325 so that when the first communication hole 110 is blocked by the first blocking portion 321, the O-ring 325 can seal the first communication hole 110.

[0074] Hook projections 322 may be formed on the upper and lower parts of the first bracket 320 body.

[0075] Furthermore, a first bolt hole 323 may be formed between the pair of first blocking portions 321. The first bolt 160 fastened to the first bolt fastening port 150 of the dust cover 100 can be movably inserted through the first bolt hole 323 of the first bracket 320.

[0076] Furthermore, a first guide hole 324 corresponding to the first guide boss 140 of the dust cover 100 may be formed in the body of the first bracket 320. As will be described later, the first guide boss 140 may be movably inserted into the first guide hole 324.

[0077] The second bracket 330 may include a second bracket 330 body and a second blocking portion 331 formed on the second bracket 330 body. The second blocking portion 331 may be formed in a shape corresponding to a second communication hole 210 formed in the dust cover 100. If necessary, a pair of second blocking portions 331 may be formed to correspond to a pair of second communication holes 210. When the second blocking portion 331 is inserted into the second communication hole 210 by the movement of the second bracket 330, the second communication hole 210 can be blocked. The second blocking portion 331 is provided with an O-ring 325 so that when the second communication hole 210 is blocked by the second blocking portion 331, the O-ring 325 can seal the second communication hole 210.

[0078] Hook grooves 332 may be formed on the upper and lower parts of the second bracket 330 body. The hook projection 322 of the first bracket 320 body engages with the hook groove 332 of the second bracket 330 body, allowing the first bracket 320 and the second bracket 330 to move together.

[0079] Furthermore, a second bolt hole 333 may be formed between the pair of second blocking portions 331. The second bolt 260 fastened to the second bolt fastening port 250 of the moisture-absorbing cover 200 can be movably inserted through the second bolt hole 333 of the second bracket 330.

[0080] Furthermore, a second guide hole 334 corresponding to the second guide boss 240 of the moisture-absorbing cover 200 may be formed in the body of the second bracket 330. As will be described later, the second guide boss 240 may be movably inserted into the second guide hole 334.

[0081] The first bracket 320 and the second bracket 330 may be provided via a connecting member so as to be able to move integrally between the dust cover 100 and the moisture-absorbing cover 200.

[0082] As described above, the connecting member may include a hook projection 322 formed on the body of the first bracket 320 and a hook groove 332 formed on the body of the second bracket 330. The positions of the hook projection 322 and the hook groove 332 can be changed as needed.

[0083] The dust cover 100, the moisture absorption cover 200, and the valve 300 may be provided with guide members that guide the movement of the first bracket 320 and the second bracket 330 when the first bracket 320 and the second bracket 330 move between the dust cover 100 and the moisture absorption cover 200.

[0084] As described above, the guide member may include a first guide boss 140 formed in the dust cover 100, a first guide hole 324 formed in the first bracket 320, a second guide boss 240 formed in the moisture-absorbing cover 200, and a second guide hole 334 formed in the second bracket 330.

[0085] When the first bracket 320 and the second bracket 330 are joined together via a connecting member and move as a single unit, the first guide boss 140 has a movably inserted first guide hole 324, and the second guide boss 240 has a movably inserted second guide hole 334. This prevents misalignment when the first bracket 320 and the second bracket 330 move.

[0086] The valve 300 may be provided with a fixing member that selectively fixes the position of the opening / closing plate 310 to a first position and a second position when the opening / closing plate 310 deforms, causing the first bracket 320 and the second bracket 330 to selectively block the first communication hole 110 and the second communication hole 210.

[0087] The fixing member may include a first bolt 160 provided on the dust cover 100, a second bolt 260 provided on the moisture-absorbing cover 200, and magnetic material 170 provided on the ends of the first bolt 160 and the second bolt 260.

[0088] When the opening / closing plate 310 is deformed into a first shape, the other end of the opening / closing plate 310 may come into contact with the magnetic material 170 provided on the first bolt 160. When the opening / closing plate 310 is deformed into a second shape, the other end of the opening / closing plate 310 may come into contact with the magnetic material 170 provided on the second bolt 260.

[0089] By selectively attaching the other end of the opening / closing plate 310 to the magnetic material 170 of the first bolt 160 and the second bolt 260, the opening / closing plate 310 can maintain its position stably even when vibrations or shocks occur in the vehicle, and the open or closed state of the first communication hole 110 or the second communication hole 210 can be stably maintained.

[0090] Referring again to Figure 4, the assembly process of the dust cover 100, the moisture absorption cover 200, and the valve 300 will be explained.

[0091] First, the other end of the opening / closing plate 310 is inserted between the main body of the first bracket 320 and the bracket body of the second bracket 330.

[0092] The hook projection 322 of the first bracket 320 body is connected to the hook groove 332 of the second bracket 330 body, and the other end of the opening / closing plate 310 is inserted between the first bracket 320 and the second bracket 330. As the opening / closing plate 310 deforms, the first bracket 320 and the second bracket 330 move together as a single unit.

[0093] One end of the opening / closing plate 310 is fixed between the first valve fixing portion 120 formed on the dust cover 100 and the second valve fixing portion 220 formed on the moisture-absorbing cover 200. When the dust cover 100 and the moisture-absorbing cover 200 are joined, the end of the first valve fixing portion 120 of the dust cover 100 and the end of the second valve fixing portion 220 of the moisture-absorbing cover 200 come into close contact. At this time, the valve fixing projection 130 of the first valve fixing portion 120 of the dust cover 100 may pass through the valve fixing groove 230 of the opening / closing plate 310 and then be inserted into the valve fixing groove 230 of the second valve fixing portion 220 of the moisture-absorbing cover 200. In this way, one end of the opening / closing plate 310 may be fixed between the dust cover 100 and the moisture-absorbing cover 200.

[0094] After installing a valve 300 between the dust cover 100 and the moisture-absorbing cover 200, a first bolt 160 is fastened to the first bolt fastening port 150 of the dust cover 100, and the first bolt hole 323 of the first bracket 320 is connected to the first bolt 160 so as to be movable relative to it. Then, a second bolt 260 is fastened to the second bolt fastening port 250 of the moisture-absorbing cover 200, and the second bolt hole 333 of the second bracket 330 is connected to the second bolt 260 so as to be movable relative to it.

[0095] The operation of a valve according to one embodiment will be described in detail below with reference to the attached drawings.

[0096] Figures 9 and 10 illustrate the operation of a dehumidifier 1000 according to one embodiment. Figure 9 illustrates the operation of the dehumidifier 1000 when the vehicle is parked, and Figure 10 illustrates the operation of the dehumidifier 1000 when the vehicle is in motion.

[0097] First, referring to Figure 9, the vehicle's lamp 10 may be turned off rather than illuminated when the vehicle is parked and not moving. This lowers the ambient temperature of the opening / closing plate 310 of the bulb 300 below the set temperature, allowing the opening / closing plate 310 to deform into the first shape.

[0098] As the opening / closing plate 310 is deformed into the first shape, the first bracket 320 and the second bracket 330 move toward the dust cover 100, and the first blocking portion 321 of the first bracket 320 blocks the first communication hole 110 of the dust cover 100. As the first bracket 320 and the second bracket 330 move toward the dust cover 100, the second blocking portion 331 of the second bracket 330 disengages from the second communication hole 210, and the second communication hole 210 may be opened.

[0099] The opening / closing plate 310 blocks the first communication hole 110, thereby preventing external humid air from flowing into the lamp 10.

[0100] When the second communication hole 210 is opened, the humid air inside the lamp 10 flows into the receiving space of the dust cover 100 through the second communication hole 210 of the moisture-absorbing cover 200, and the moisture contained in the air can be captured by the desiccant 270 contained in the moisture-absorbing cover 200.

[0101] At this time, the end of the opening / closing plate 310 is attached to the magnetic material 170 provided on the first bolt 160, thereby preventing the opening / closing plate 310 from detaching from the first communication hole 110 even if vibration or shock occurs in the vehicle.

[0102] Referring to Figure 10, when the vehicle's lamp 10 is illuminated while the vehicle is in motion, the temperature inside the lamp 10 rises. As a result, the ambient temperature around the opening / closing plate 310 of the bulb 300 rises above the set temperature, and the opening / closing plate 310 can be deformed into the second shape.

[0103] As the opening / closing plate 310 is deformed into the second shape, the first bracket 320 and the second bracket 330 move toward the moisture-absorbing cover 200, the first blocking portion 321 of the first bracket 320 detaches from the first communication hole 110 of the dust cover 100, and the first communication hole 110 may be opened. As the first bracket 320 and the second bracket 330 move toward the moisture-absorbing cover 200, the second blocking portion 331 of the second bracket 330 blocks the second communication hole 210.

[0104] When the opening / closing plate 310 opens the first communication hole 110, the humid air from the desiccant 270 contained in the moisture-absorbing cover 200 can be discharged to the outside through the first communication hole 110.

[0105] Furthermore, by blocking the second communication hole 210, the air inside the lamp 10 does not flow into the receiving space of the dust cover 100.

[0106] The following describes in detail a dehumidifying device for vehicle lamps according to other embodiments, with reference to the attached drawings.

[0107] Figure 11 is an exploded perspective view showing the configuration of a dehumidifier according to another embodiment. Figure 12 is an exploded perspective view showing the configuration of a valve in a dehumidifier according to another embodiment. Figure 13 is a perspective view showing the configuration of a dust cover in a dehumidifier according to another embodiment. And Figure 14 is a perspective view showing the configuration of a moisture-absorbing cover in a dehumidifier according to another embodiment.

[0108] The dehumidifier 1000 described with reference to Figures 1 to 10 and the dehumidifier 1000 shown in Figures 11 to 14 differ in the shape and operation of the valve 300's opening / closing plate 310, and the mounting structure of the opening / closing plate 310, but the remaining configuration is generally similar to the dehumidifier 1000 described with reference to Figures 1 to 10. Therefore, the following explanation will focus on the differences from the configuration in Figures 1 to 10.

[0109] Referring to Figures 11 to 14, the valve 300 of the dehumidifier 1000 according to another embodiment may include an opening / closing plate 310, a first bracket 320, and a second bracket 330.

[0110] The opening / closing plate 310 is made of a shape memory alloy and deforms into a first shape and a second shape due to temperature changes, allowing the first bracket 320 and the second bracket 330 to reciprocate in a set direction.

[0111] The first shape is the shape of the opening / closing plate 310 when the ambient temperature around the opening / closing plate 310 is below the set temperature (for example, when the vehicle is parked), in which case the lamp 10 may be off and the vehicle may be parked. When the shape of the opening / closing plate 310 is the first shape, the first communication hole 110 may be blocked and the second communication hole 210 may be open. The first shape may be a shape in which the central part of the opening / closing plate 310 is deformed so that the first bracket 320 and the second bracket 330 move toward the first communication hole 110. In other words, the first shape can mean that the opening / closing plate 310 is flat.

[0112] The second shape is the shape of the opening / closing plate 310 when the ambient temperature around the opening / closing plate 310 is above the set temperature (for example, when the vehicle is in motion), in which case the vehicle may be in motion with the lamp 10 lit. When the shape of the opening / closing plate 310 is the second shape, the first communication hole 110 may be opened and the second communication hole 210 may be blocked. The second shape may be a shape in which the central part of the opening / closing plate 310 is deformed to move the first bracket 320 and the second bracket 330 toward the second communication hole 210. In other words, the second shape can mean a state in which the center of the opening / closing plate 310 protrudes convexly toward the second communication hole 210.

[0113] The opening / closing plate 310 is formed in a substantially plate shape, and opening / closing fixing holes 311 may be formed at both ends.

[0114] Both ends of the opening / closing plate 310 are fixed between the dust cover 100 and the moisture absorption cover 200, and the central part of the opening / closing plate 310 may be inserted between the first bracket 320 and the second bracket 330. In this way, both ends of the opening / closing plate 310 may be fixed ends, and the central part may be a free end.

[0115] To secure both ends of the opening / closing plate 310 between the dust cover 100 and the moisture-absorbing cover 200, a first valve fixing portion 120 may be formed protruding from the inner surface of the dust cover 100, projecting toward the internal space of the lamp 10 (or the moisture-absorbing cover 200). The first valve fixing portion 120 may be formed on both sides of a pair of first communication holes 110. Valve fixing grooves 230 may be formed in the first valve fixing portion 120 into which both ends of the opening / closing plate 310 are inserted and placed.

[0116] Furthermore, a second valve fixing portion 220 may be formed protruding from the inner surface of the moisture-absorbing cover 200 toward the dust cover 100. The second valve fixing portion 220 may be formed in a position corresponding to the first valve fixing portion 120. The second valve fixing portion 220 may be formed on both sides of a pair of second communication holes 210.

[0117] When the dust cover 100 and the moisture-absorbing cover 200 are joined together, both ends of the opening / closing plate 310 are placed on the valve fixing grooves 230 of the first valve fixing part 120, and when the second valve fixing part 220 of the moisture-absorbing cover 200 is in close contact with the first valve fixing part 120, both ends of the opening / closing plate 310 may be fixed between the first valve fixing part 120 and the second valve fixing part 220.

[0118] The operation of the dehumidifier 1000 according to other embodiments is generally similar to the operation of the dehumidifier 1000 described with reference to Figures 1 to 10. However, there are differences in the shape when the opening / closing plate 310 is deformed into the first or second shape.

[0119] In another embodiment, referring to Figure 15, when the ambient temperature around the valve 300 is below the set temperature, the opening / closing plate 310 is deformed into a first shape, and at this time, the central part of the opening / closing plate 310 may be formed to protrude toward the first communication hole 110. As the opening / closing plate 310 is deformed into the first shape, the central part of the opening / closing plate 310 moves the first bracket 320 and the second bracket 330, so that the first blocking portion 321 of the first bracket 320 blocks the first communication hole 110, and the second blocking portion 331 of the second bracket 330 opens the second communication hole 210.

[0120] Referring to Figure 16, when the ambient temperature around the valve 300 is above the set temperature, the opening / closing plate 310 is deformed into a second shape, and at this time, the central part of the opening / closing plate 310 may be formed to protrude toward the second communication hole 210. As the opening / closing plate 310 is deformed into a second shape, the central part of the opening / closing plate 310 moves the first bracket 320 and the second bracket 330, so that the first shut-off portion 321 of the first bracket 320 opens the first communication hole 110, and the second shut-off portion 331 of the second bracket 330 closes the second communication hole 210.

[0121] According to one embodiment, when the vehicle is parked, external humid air is prevented from flowing into the dehumidifier 1000 and the lamp 10, thereby preventing a deterioration in the performance of the desiccant 270.

[0122] Furthermore, when the vehicle is in motion, the performance of the desiccant 270 can be improved by discharging the humid air absorbed by the desiccant 270 to the outside of the dehumidifier 1000.

[0123] Furthermore, by opening and closing the communication hole without using a separate power source, the manufacturing cost of the vehicle can be reduced, and the durability of the valve 300 can be improved.

[0124] While preferred embodiments of the present disclosure have been described above, the present disclosure is not limited thereto and can be modified and implemented in various ways within the scope of the claims, detailed description of the disclosure and the accompanying drawings, which naturally also fall within the scope of the present disclosure. [Explanation of symbols]

[0125] 10: Lamp 11: Lens 12: Housing 13: Light source insertion slot 14:Light source 1000: Dehumidifier 100: Dust cover 110: First Connecting Hall 120: First valve fixing part 130: Valve fixing projection 140: First Guide Boss 150: First bolt fastening port 160: First bolt 170: Magnetic material 200: Moisture-absorbing cover 210: Second connecting hall 220: Second valve fixing part 230: Valve fixing groove 240: Second Guide Boss 250: Second bolt fastening port 260: Second bolt 270: Desiccant 300: Valve 310: Opening / closing plate 311: Open / close fixing hole 320: First bracket 321: First Shut-off Section 322: Hook protrusion 323: First bolt hole 324: First Guide Hall 325: O-ring 330: Second bracket 331: Second Shut-off Section 332: Hook groove 333: Second bolt hole 334: Second Guide Hall 400: Membrane

Claims

1. A dust cover in which at least one first communication hole is formed; A moisture-absorbing cover provided in the dust cover, which receives a desiccant that absorbs moisture contained in the air, and which has at least one second communication hole corresponding to the first communication hole; and A valve that selectively opens the first and second communication holes through a first bracket and a second bracket, which are operated by a shape memory alloy that deforms due to the temperature difference between the inside and outside of the dust cover; A dehumidifier for vehicle lamps, including [specific component].

2. The aforementioned valve is An opening and closing plate formed of a shape memory alloy, which deforms into a first shape and a second shape due to temperature changes, causing the first bracket and the second bracket to reciprocate in a set direction; The first bracket provided on one side of the opening / closing plate, having a first blocking portion corresponding to the first communication hole; and The second bracket, provided on the other side of the opening / closing plate, has a second blocking portion formed thereon that corresponds to the second communication hole; A dehumidifying device for a vehicle lamp according to claim 1, including the above.

3. The dehumidifying device for a vehicle lamp according to claim 2, wherein the first bracket and the second bracket are provided to be movably integrated together via a connecting member.

4. The aforementioned connecting member is A hook groove formed in either the first bracket or the second bracket; and A hook projection formed on either the first bracket or the second bracket, which engages with the hook groove; A dehumidifier for a vehicle lamp according to claim 3, including the above.

5. Guide members for guiding the movement of the first bracket and the second bracket; A dehumidifier for a vehicle lamp according to claim 2, further comprising:

6. The guide member is A first guide boss formed on the dust cover; A first guide hole formed in the first bracket and movably inserted into the first guide boss; A second guide boss formed on the moisture-absorbing cover; and A second guide hole formed in the second bracket and movably inserted into the second guide boss; A dehumidifier for a vehicle lamp according to claim 5, including the following:

7. The aforementioned valve is O-rings provided in the first and second blocking sections, respectively; A dehumidifier for a vehicle lamp according to claim 2, further comprising:

8. When the deformation of the opening / closing plate causes the first bracket and the second bracket to selectively block the first communication hole and the second communication hole, a fixing member selectively fixes the opening / closing plate to the first and second positions; A dehumidifier for a vehicle lamp according to claim 2, further comprising:

9. The aforementioned fixing member is A first bolt provided in the dust cover; A second bolt provided in the moisture-absorbing cover; and A magnetic body provided on the first bolt and the second bolt, respectively, to which the opening and closing plate is selectively attached; A dehumidifier for a vehicle lamp according to claim 8, including the following:

10. One end of the opening / closing plate is a fixed end that is fixed between the dust cover and the moisture-absorbing cover. The dehumidifying device for a vehicle lamp according to claim 2, wherein the other end of the opening / closing plate is realized as a free end inserted between the first bracket and the second bracket.

11. When the ambient temperature around the valve is below the set temperature, the opening / closing plate of the valve is deformed into the first shape. Dehumidifying device for a vehicle lamp according to claim 10, wherein deformation of the opening / closing plate causes the other end of the opening / closing plate to move the first bracket and the second bracket, so that the first blocking portion of the first bracket blocks the first communication hole and the second blocking portion of the second bracket opens the second communication hole.

12. The dehumidifying device for a vehicle lamp according to claim 11, wherein the first shape is such that the other end of the opening / closing plate is deformed to move the first bracket and the second bracket toward the first communication hole.

13. When the ambient temperature around the valve is above the set temperature, the opening / closing plate of the valve is deformed into the second shape. Dehumidifying device for a vehicle lamp according to claim 10, wherein deformation of the opening / closing plate causes the other end of the opening / closing plate to move the first bracket and the second bracket, so that the first blocking portion of the first bracket opens the first communication hole and the second blocking portion of the second bracket blocks the second communication hole.

14. The dehumidifying device for a vehicle lamp according to claim 13, wherein the second shape is such that the other end of the opening / closing plate is deformed to move the first bracket and the second bracket toward the second communication hole.

15. Both ends of the opening / closing plate are fixed ends that are fixed between the dust cover and the moisture-absorbing cover. The dehumidifying device for a vehicle lamp according to claim 2, wherein the central portion of the opening and closing plate is realized as a free end inserted between the first bracket and the second bracket.

16. When the ambient temperature around the valve is below the set temperature, the opening / closing plate of the valve is deformed into the first shape. Dehumidifying device for a vehicle lamp according to claim 15, wherein deformation of the opening / closing plate causes the first bracket and the second bracket to move due to the central portion of the opening / closing plate, so that the first blocking portion of the first bracket blocks the first communication hole and the second blocking portion of the second bracket opens the second communication hole.

17. When the ambient temperature around the valve is above the set temperature, the opening / closing plate of the valve is deformed into the second shape. Dehumidifying device for a vehicle lamp according to claim 15, wherein deformation of the opening / closing plate causes the first bracket and the second bracket to move due to the central portion of the opening / closing plate, so that the first blocking portion of the first bracket opens the first communication hole and the second blocking portion of the second bracket blocks the second communication hole.

18. A membrane provided in the second communication hole to prevent moisture from entering the dust cover from the outside; A dehumidifying device for a vehicle lamp according to claim 1, further comprising:

19. A vehicle lamp comprising the dehumidifying device described in claim 1.

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