Temperature-control anti-fog car lamp

Abstract

The utility model provides a temperature control anti-fog car lamp which comprises a shell, ITO coated glass is arranged in the open end of the shell, a lampshade assembly is arranged in the shell, a lamp holder assembly is embedded in the center of the lampshade assembly, and the interior of the shell is divided into a front cavity and a rear cavity through the lampshade assembly and the lamp holder assembly. A PCB is fixedly installed on the back of the lamp holder assembly, air flow channels are formed in the lampshade assembly and the lamp holder assembly, the front cavity communicates with the rear cavity through the air flow channels, a drying assembly is fixedly installed on the outer side of the circumferential face of the lampshade assembly, and a temperature sensor is arranged on the front side of the lamp holder assembly. And the temperature sensor and the PCB are electrically connected with a controller in the automobile. The device has the advantage of simultaneously removing water mist on the inner surface and the outer surface of the ITO coated glass.

Description

Technical Field

[0001] The utility model relates to the field of automobile accessories, in particular to a temperature-controlled anti-fog automobile lamp. Background Art

[0002] Headlights are tools for vehicles to illuminate the road at night, and are also tools for issuing various vehicle driving signals. Headlights are generally divided into headlights, taillights, turn signals, etc. Due to the temperature difference between the headlights and the outside temperature, when the outside air humidity is high, it is easy to form a layer of water mist on the surface of the headlights. In addition, after the car has been used for a long time, the external water vapor can easily pass through the headlight cover and enter the headlight, and it is also easy to form water mist on the inner wall of the headlight. The water mist on the headlight will affect the emitted light, and it needs to be defogged by a defogger.

[0003] The Chinese patent with application date: 2021-04-26 and announcement number: CN215061834U discloses an anti-fog car lamp, including a front shell and a rear shell, the front and rear shells are snap-connected to form a lampshade, a PCB mainboard is installed in the lampshade, an intelligent control module is integrated on the PCB mainboard, a plurality of lamp beads are installed on the front side of the PCB mainboard, the front end of the lamp beads is limited by a decorative plate, the decorative plate is fixedly mounted on the rear shell, and a light-transmitting mirror is installed on the front end surface of the front shell. Temperature sensors are respectively arranged in the front and rear areas of the lamp beads, and by collecting and analyzing the temperature difference, the electrodes are turned on when fog is likely to be generated, so that the conductive coating on the light-transmitting mirror is heated and evaporated, and the fog is removed to achieve the effect of automatic defogger. The technical solution is flexible in change, has small layout space limitations, can be freely adjusted according to the shape of the car lamp, and has high reliability in fog prevention.

[0004] In this technical solution, defogging is automatically performed by heating the light-transmitting mirror. However, it is still difficult to discharge the water vapor inside the headlight only by heating the light-transmitting mirror, making it difficult to remove the water mist inside the headlight, so further improvement can be made. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the utility model proposes a temperature-controlled anti-fog vehicle lamp.

[0006] A temperature-controlled anti-fog vehicle lamp comprises a shell, an ITO-coated glass is arranged in one end of the shell opening, a lampshade assembly is arranged inside the shell, a lamp holder assembly is embedded in the center of the lampshade assembly, the lampshade assembly and the lamp holder assembly divide the interior of the shell into a front cavity and a rear cavity, a PCB board is fixedly mounted on the back of the lamp holder assembly, an air flow channel is arranged on the lampshade assembly and the lamp holder assembly, the front cavity and the rear cavity are connected through the air flow channel, a drying assembly is fixedly mounted on the outer side of the circumferential surface of the lampshade assembly, a temperature sensor is arranged on the front side of the lamp holder assembly, and the temperature sensor and the PCB board are electrically connected to a controller inside the car.

[0007] Based on the above, the outer shell includes a tubular shell. An annular flange is integrally formed on the inner wall of the front end of the tubular shell. A rear cover shell is detachably installed at the rear end of the tubular shell. A convex platform is fixedly installed at the rear end of the rear cover shell. A cover plate is installed on the rear side of the convex platform through bolts. A plurality of wire passing holes are formed through the assembly of the convex platform and the cover plate.

[0008] Based on the above, the ITO coated glass is attached to the rear side of the annular flange. A first conductive wire is arranged at the rear side of the ITO coated glass. The first conductive wire passes through the wire passing hole.

[0009] Based on the above, the lamp shade assembly includes a conical cover. The conical cover is attached to the rear side of the ITO coated glass. A covering ring is integrally formed at the rear end of the conical cover. Through grooves are formed through the left and right sides of the covering ring. A sleeve is arranged at the front edge of the conical cover. The first conductive wire passes through the sleeve.

[0010] Based on the above, the lamp holder assembly includes a lamp holder body embedded inside the covering ring. A plurality of lamp beads are arranged at the front side of the lamp holder body. The lamp beads are electrically connected to a PCB board. Arc-shaped grooves are formed on the left and right sides of the lamp holder body. The arc-shaped grooves are communicated with the through grooves, and an air flow channel is formed through the arc-shaped grooves and the through grooves.

[0011] Based on the above, the drying assembly includes an annular cover fixedly installed on the outer wall of the covering ring. Second convex ears are arranged in an array on the circumferential surface of the annular cover. First convex ears are arranged in an array on the inner wall of the outer shell. The second convex ears and the first convex ears correspond one by one. The second convex ears and the first convex ears are fixed through bolts.

[0012] Based on the above, the annular cover forms two arc-shaped cavities on the outer side of the covering ring, and the two arc-shaped cavities are distributed left and right. The two arc-shaped cavities are respectively communicated with the two through grooves. A drying groove is arranged between the tops of the two arc-shaped cavities. The top of the left arc-shaped cavity is communicated with the drying groove through a diversion hole. A desiccant is filled in the drying groove. A sealing cover is fixedly installed at the rear side of the annular cover. The sealing cover is used to seal the opening of the drying groove. An exhaust hole is formed through the right half surface of the sealing cover. A gas guide pipe is fixedly connected to the bottom end of the right arc-shaped cavity and communicated with it. The other end of the gas guide pipe is fixedly installed with a micro air pump. A third conductive wire is connected to the micro air pump. The third conductive wire passes through the wire passing hole. The micro air pump is electrically connected to a controller.

[0013] The utility model has substantial features and progress compared with the prior art. Specifically, the utility model heats up by electrifying the ITO coated glass to remove the water mist on the outer surface of the ITO coated glass; and then through the air circulation in the front cavity and the rear cavity, the moisture in the air is dried at the same time, so as to remove the water mist on the inner surface of the ITO coated glass, having the advantage of removing the water mist on both the inner surface and the outer surface of the ITO coated glass at the same time. Brief Description of the Drawings

[0014] Figure 1 is a schematic perspective view of the present utility model.

[0015] Figure 2 is a schematic exploded perspective view of the present utility model.

[0016] Figure 3 is a schematic front sectional view of the rear cover of the present utility model.

[0017] Figure 4 is a schematic perspective view of the present utility model with the rear cover removed.

[0018] Figure 5 is a schematic perspective view of the lamp shade assembly and the lamp base assembly of the present utility model.

[0019] Figure 6 is a schematic perspective view of the drying assembly of the present utility model.

[0020] Description of the reference numerals: 100, housing; 200, ITO coated glass; 300, lamp shade assembly; 400, lamp base assembly; 500, PCB board; 600, drying assembly; 700, temperature sensor; 800, pressure sensor;

[0021] 101, tubular shell; 102, annular flange; 103, rear cover; 104, boss; 105, cover plate; 106, wire passing hole; 107, first lug;

[0022] 201, first conductive wire; 301, conical cover; 302, coating ring; 303, through groove; 304, sleeve; 401, lamp base body; 402, lamp bead; 403, arc groove; 501, second conductive wire;

[0023] 601, annular cover; 602, second lug; 603, arc cavity; 604, drying groove; 605, air duct; 606, micro air pump; 607, third conductive wire; 608, diversion hole; 609, desiccant; 610, sealing cover; 611, exhaust hole. Detailed Description of the Preferred Embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figure 1-Figure 6As shown in the figure, a temperature-controlled anti-fog headlight includes a housing 100. Inside one end of the open housing 100, there is an ITO-coated glass 200. Inside the housing 100, there is a lamp shade assembly 300. At the center of the lamp shade assembly 300, a lamp base assembly 400 is embedded. The lamp shade assembly 300 and the lamp base assembly 400 divide the interior of the housing 100 into a front cavity and a rear cavity. A PCB board 500 is fixedly installed on the back of the lamp base assembly 400. Air flow channels are provided on the lamp shade assembly 300 and the lamp base assembly 400. The front cavity and the rear cavity are connected through the air flow channels, so that the front cavity and the rear cavity circulate through two air flow channels.

[0026] A drying assembly 600 is fixedly installed on the outer side of the circumferential surface of the lamp shade assembly 300. A temperature sensor 700 is provided on the front side of the lamp base assembly 400. The temperature sensor 700 and the PCB board 500 are electrically connected to a controller inside the vehicle. The temperature inside the front cavity is monitored through the temperature sensor 700. The ambient temperature can be obtained through vehicle networking, or another temperature sensor can be set inside the vehicle to monitor the ambient temperature. Thus, by comparing the temperature inside the front cavity with the ambient temperature, the obtained temperature difference is compared with the preset temperature difference range of the controller, and then the controller controls the ITO-coated glass 200 to release heat.

[0027] When in use, the housing 100 includes a tubular shell 101. An annular flange 102 is integrally formed on the inner wall of the front end of the tubular shell 101. The rear end of the tubular shell 101 is detachably installed with a rear cover shell 103. The tubular shell 101 and the rear cover shell 103 can be connected by means of threaded connection, snap connection, screw fixation, etc. A boss 104 is fixedly installed on the rear end of the rear cover shell 103. A cover plate 105 is installed on the rear side of the boss 104 through bolts. A plurality of wire passing holes 106 are penetrated through the assembly of the boss 104 and the cover plate 105. The ITO-coated glass 200 is attached to the rear side of the annular flange 102. A first conductive wire 201 is provided on the rear side of the ITO-coated glass 200. The first conductive wire 201 passes through the wire passing hole 106. The wire passing hole 106 is in an L shape, and an arc chamfer is provided at the corner. A rubber cushion layer can be provided on the inner wall of the wire passing hole 106. Thus, while the first conductive wire 201 passes through the wire passing hole 106 and exits from the inside of the housing 100, the first conductive wire 201 seals the wire passing hole 106, thereby ensuring the sealed state of the housing 100. And the rubber cushion layer in the wire passing hole 106 further ensures the sealing effect of the housing 100.

[0028] Specifically, the lamp cover assembly 300 includes a conical cover 301. The conical cover 301 is attached to the rear side of the ITO-coated glass 200. A covering ring 302 is integrally formed at the rear end of the conical cover 301. Through grooves 303 are respectively formed through the left and right sides of the covering ring 302. A sleeve 304 is provided at the front edge of the conical cover 301. A second conductive wire 501 is arranged on the PCB board 500. Both the second conductive wire 501 and the first conductive wire 201 pass through the sleeve 304. The first conductive wire 201 is avoided through the sleeve 304. In addition, adhesive can be coated between the ITO-coated glass 200 and the annular flange 102, and between the conical cover 301 and the ITO-coated glass 200 to strengthen the fixing effect between the ITO-coated glass 200 and the annular flange 102 and the conical cover 301, and seal the gaps between the ITO-coated glass 200 and the annular flange 102, and between the conical cover 301 and the ITO-coated glass 200 with the adhesive.

[0029] The lamp base assembly 400 includes a lamp base body 401 embedded inside the covering ring 302, and the rear end of the covering ring 302 is sealed by the lamp base body 401. A plurality of lamp beads 402 are arranged on the front side of the lamp base body 401, and the lamp beads 402 are electrically connected to the PCB board 500. Arc-shaped grooves 403 are respectively formed on the left and right sides of the lamp base body 401. The arc-shaped grooves 403 communicate with the through grooves 303, and an air flow channel is formed through the arc-shaped grooves 403 and the through grooves 303.

[0030] In reality, the drying assembly 600 includes an annular cover 601 fixedly installed on the outer wall of the covering ring 302. Lugs two 602 are arranged in an array on the circumferential surface of the annular cover 601. Lugs one 107 are arranged in an array on the inner wall of the housing 100. The lugs two 602 and the lugs one 107 correspond one by one, and the lugs two 602 and the lugs one 107 are fixed by bolts. Thus, the annular cover 601, the lamp base assembly 400 and the lamp cover assembly 300 are fixed on the inner wall of the housing 100.

[0031] Two arc-shaped cavities 603 are formed outside the covering ring 302 by the annular cover 601, and the two arc-shaped cavities 603 are distributed left and right. The two arc-shaped cavities 603 communicate with the two through grooves 303 respectively. A drying groove 604 is arranged between the tops of the two arc-shaped cavities 603. The top of the left arc-shaped cavity 603 is communicated with the drying groove 604 through a diversion hole 608. A desiccant 609 is filled in the drying groove 604, and the component of the desiccant 609 is calcium chloride. A sealing cover 610 is fixed to the rear side of the annular cover 601 by bolts. The sealing cover 610 is used to seal the opening of the drying groove 604. An exhaust hole 611 is formed through the right half surface of the sealing cover 610. Thus, the desiccant 609 can be replaced by removing the sealing cover 610.

[0032] At the bottom of the arc-shaped cavity 603 on the right side, an air duct 605 is fixedly connected and communicated. At the other end of the air duct 605, a micro air pump 606 is fixedly installed. A third conducting wire 607 is connected to the micro air pump 606. The third conducting wire 607 passes through the wire threading hole 106. The micro air pump 606 is electrically connected to the controller. When the temperature difference between the temperature inside the current cavity and the ambient temperature reaches the temperature difference range preset by the controller, the controller controls the ITO coated glass 200 to generate heat and at the same time controls the micro air pump 606 to start, sucking the air in the rear cavity and conveying it into the arc-shaped cavity 603 on the right side. The air inside the arc-shaped cavity 603 then enters the front cavity through the air flow channel on the right side. The air in the front cavity then passes through the air flow channel on the left side and enters the arc-shaped cavity 603 on the left side. After that, the air passes through the diversion holes 608 and enters the inside of the drying tank 604. After being dried by the desiccant 609, the air then passes through the exhaust holes 611 and enters the rear cavity.

[0033] Thus, the air circulates between the front cavity and the rear cavity, and during this process, the air is dried to remove the water vapor in the front cavity. A pressure sensor 800 is also provided inside the front cavity. The pressure sensor 800 is electrically connected to the controller. The pressure inside the front cavity is monitored through the pressure sensor 800. The pressure value inside the front cavity is preset by the controller. When the pressure monitored by the pressure sensor 800 is lower than the preset pressure value, the controller starts the micro air pump 606 to convey air into the front cavity, so that the front cavity maintains a slightly positive pressure state.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A temperature-controlled anti-fog vehicle lamp, characterized in that: It includes a shell, an ITO-coated glass is arranged in one end of the opening of the shell, a lampshade assembly is arranged inside the shell, a lamp holder assembly is embedded in the center of the lampshade assembly, the lampshade assembly and the lamp holder assembly divide the interior of the shell into a front cavity and a rear cavity, a PCB board is fixedly installed on the back of the lamp holder assembly, air flow channels are arranged on the lampshade assembly and the lamp holder assembly, the front cavity and the rear cavity are connected through the air flow channels, a drying assembly is fixedly installed on the outer side of the circumferential surface of the lampshade assembly, a temperature sensor is arranged on the front side of the lamp holder assembly, and the temperature sensor and the PCB board are electrically connected to a controller inside the car.

2. The temperature-controlled anti-fog vehicle lamp according to claim 1, characterized in that: The shell includes a tubular shell, the inner wall of the front end of the tubular shell is integrally formed with an annular flange, the rear end of the tubular shell is detachably mounted with a rear cover shell, the rear end of the rear cover shell is fixedly mounted with a boss, the rear side of the boss is mounted with a cover plate by bolts, and a plurality of threading holes are opened through the boss and cover plate assembly.

3. The temperature-controlled anti-fog vehicle lamp according to claim 2, characterized in that: The ITO coated glass is attached to the rear side of the annular flange, and a conductive wire 1 is arranged on the rear side of the ITO coated glass, and the conductive wire 1 passes through the threading hole.

4. The temperature-controlled anti-fog vehicle lamp according to claim 1, characterized in that: The lampshade assembly includes a conical cover, which is attached to the rear side of the ITO-coated glass. A covering ring is integrally formed at the rear end of the conical cover. Through grooves are opened on both sides of the covering ring. A sleeve is provided at the front edge of the conical cover, and a conductive wire passes through the sleeve.

5. The temperature-controlled anti-fog vehicle lamp according to claim 1, characterized in that: The lamp holder assembly includes a lamp holder body embedded in a covering ring, a plurality of lamp beads are arranged on the front side of the lamp holder body, the lamp beads are electrically connected to the PCB board, arc grooves are opened on the left and right sides of the lamp holder body, the arc grooves are connected with the through grooves, and an air flow channel is formed by the arc grooves and the through grooves.

6. The temperature-controlled anti-fog vehicle lamp according to claim 1, characterized in that: The drying component includes an annular cover fixedly mounted on the outer wall of the covering ring, the annular cover is provided with lugs 2 in an array on the circumferential surface, and the outer shell inner wall is provided with lugs 1 in an array, the lugs 2 correspond to the lugs 1 one by one, and the lugs 2 and 1 are fixed by bolts.

7. The temperature-controlled anti-fog vehicle lamp according to claim 6, characterized in that: The annular cover forms two groups of arc-shaped cavities on the outside of the covering ring, and the two groups of arc-shaped cavities are distributed on the left and right. The two groups of arc-shaped cavities are respectively connected with two through grooves. A drying groove is arranged between the top ends of the two groups of arc-shaped cavities. The top end of the arc-shaped cavity on the left is connected with the drying groove through a guide hole. The drying groove is filled with a desiccant. A sealing cover is fixed to the rear side of the annular cover by bolts. The sealing cover is used to seal the opening of the drying groove. An exhaust hole is opened through the right half surface of the sealing cover. The bottom end of the arc-shaped cavity on the right side is fixed and connected with an air duct, and a micro air pump is fixedly installed at the other end of the air duct. A conductive wire three is connected to the micro air pump, and the conductive wire three passes through the threading hole. The micro air pump is electrically connected to the controller.

Images