CA3171706A1 - Vehicle lamp - Google Patents
Vehicle lamp Download PDFInfo
- Publication number
- CA3171706A1 CA3171706A1 CA3171706A CA3171706A CA3171706A1 CA 3171706 A1 CA3171706 A1 CA 3171706A1 CA 3171706 A CA3171706 A CA 3171706A CA 3171706 A CA3171706 A CA 3171706A CA 3171706 A1 CA3171706 A1 CA 3171706A1
- Authority
- CA
- Canada
- Prior art keywords
- lamp
- light
- circulation passage
- main transmitting
- airflow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 12
- 238000005286 illumination Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/20—Promoting gas flow in lighting devices, e.g. directing flow toward the cover glass for demisting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/60—Heating of lighting devices, e.g. for demisting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
A vehicle lamp has a lamp housing (1), a light-emitting device (20), a fan (30), and an auxiliary heater (40) located within the lamp housing (1).
The lamp housing (1) has a lamp cover (11) and an airflow circulating structure (12) inside the lamp housing (1) to form a circulation passage (120) therein. The circulation passage (120) corresponds to a main transmitting area (110) of the lamp cover (11) in position. Airflow, generated by the fan (30), inside the circulation passage (120) is heated by the auxiliary heater (40) and at least one light-emitting diode module (21) of the light-emitting device (20). The main transmitting area (110) is heated by heated airflow. Accordingly, the snow attached onto the main transmitting area (110) are is removed rapidly and efficiently to let light emitted by the light-emitting device (20) pass through the main transmitting area (110).
The lamp housing (1) has a lamp cover (11) and an airflow circulating structure (12) inside the lamp housing (1) to form a circulation passage (120) therein. The circulation passage (120) corresponds to a main transmitting area (110) of the lamp cover (11) in position. Airflow, generated by the fan (30), inside the circulation passage (120) is heated by the auxiliary heater (40) and at least one light-emitting diode module (21) of the light-emitting device (20). The main transmitting area (110) is heated by heated airflow. Accordingly, the snow attached onto the main transmitting area (110) are is removed rapidly and efficiently to let light emitted by the light-emitting device (20) pass through the main transmitting area (110).
Description
2 BACKGROUND OF THE INVENTION
3 1. Field of the Invention
4 The present invention relates to a luminous device, and more particularly to a vehicle lamp.
6 2. Description of Related Art 7 A conventional vehicle lamp has a lamp housing and a light-emitting 8 device mounted in the lamp housing. The lamp housing has a lamp base and a 9 lamp cover assembled to each other. The light-emitting device is controlled to emit light for illumination or warning. The lamp cover is transparent and covers 11 the light-emitting device to protect the light-emitting device.
12 The conventional vehicle lamp is applied on a motor vehicle to provide 13 functions of illumination or warning. However, in a snowy environment, snow 14 easily attaches to the lamp cover. The light emitted by the vehicle lamp is blocked by the snow attached to the lamp cover accordingly. In order to prevent 16 the light emitted by the vehicle lamp from being blocked by the snow attached 17 to the lamp cover, the conventional vehicle lamp further has multiple heating 18 wires to electrically heat the lamp cover for melting the snow attached thereto.
19 The vehicle lamp can normally function to emit light in the snowy environment accordingly.
21 In the above mentioned conventional vehicle lamp, the lamp cover is 22 heated to remove the snow by the multiple heating wires mounted to the lamp 23 cover. However, the conventional vehicle lamp with heating wires mounted to 24 the lamp cover has problems of uneven heating and slow heat transfer.
The Date Recue/Date Received 2022-08-31 1 applicant of the present invention equips a hot airflow generating mechanism 2 inside the lamp cover to generate hot airflow inside the lamp cover all over for 3 melting the snow attached to the lamp cover and keep the vehicle lamp 4 normally functioning in the snowy environment.
Although the above mentioned vehicle lamp equipped with the hot 6 airflow generating mechanism provides the function of melting snow as the 7 vehicle lamp with heating wires. The hot airflow generating mechanism fully 8 heats up the vehicle lamp and has problems of unconcentrated heating and 9 large electricity consumption. Therefore, the snow attached to a main transmitting area of the lamp cover cannot be removed easily, and the light 11 emitted from the vehicle lamp is blocked by the snow still attached to the lamp 12 cover. The vehicle lamp hardly provides its original function of illumination or 13 warning.
14 To overcome the shortcomings, the present invention provides a vehicle lamp to mitigate or obviate the aforementioned problems.
17 One aspect of the invention is to provide a vehicle lamp to improve the 18 problems of unconcentrated heating, failure to efficiently remove snow 19 attached to the lamp cover, and high power consumption of the conventional vehicle lamp.
21 The vehicle lamp comprises a lamp housing, a light-emitting device, a 22 fan, and an auxiliary heater. The lamp housing has a lamp base, a lamp cover, 23 and an airflow circulating structure. The lamp cover is transparent, is mounted 24 to the lamp base to form a chamber between the lamp cover and the lamp base, Date Recue/Date Received 2022-08-31 1 and has a main transmitting area. The airflow circulating structure is formed in 2 the chamber between the lamp cover and the lamp base. The chamber is 3 separated by the airflow circulating structure to form a circulation passage in 4 the chamber and located at a position corresponding to the main transmitting area. The light-emitting device is mounted in the lamp housing and has at least 6 one light-emitting diode module mounted in the chamber and located at a 7 position corresponding to the main transmitting area of the lamp cover.
The at 8 least one light-emitting diode module is configured to emit light capable of 9 passing through the circulation passage and the main transmitting area of the lamp cover and is configured to produce thermal energy when the at least one 11 light-emitting diode module emits light. The thermal energy produced by the at 12 least one light-emitting diode transfers into the circulation passage.
The fan is 13 mounted in the lamp housing for generating airflow inside the circulation 14 passage. The auxiliary heater is mounted in the lamp housing and is adapted to be controlled to produce thermal energy inside the circulation passage. The 16 airflow in the circulation passage generated by the fan is heated by the thermal 17 energy produced from the auxiliary heater and the at least one light-emitting 18 diode module and turns into thermal airflow to heat up the main transmitting 19 area of the lamp cover.
The vehicle lamp has the following advantages:
21 1. Rapid and efficient removal of the snow attached to the main 22 transmitting area of the lamp cover by intensive heating: The vehicle lamp of 23 the present invention has the circulation passage being circular and formed by 24 the airflow circulating structure disposed inside the lamp cover and Date Recue/Date Received 2022-08-31 1 corresponding to the main transmitting area in position, the fan for generating 2 airflow inside the circulation passage, and the auxiliary heater and the light-3 emitting device for heating the airflow inside the circulation passage.
The main 4 transmitting area is evenly and intensively heated to make the snow attached to the lamp cover rapidly absorb thermal energy and melted and let the light 6 emitted by the light-emitting device pass through the main transmitting area for 7 illumination.
8 2. Reduced power consumption: With the arrangement of the vehicle 9 lamp of the present invention, the snow is removed by heating the main transmitting area of the lamp cover rather than by heating the entire lamp cover 11 as the conventional vehicle lamp, and thereby power consumption of the 12 present invention is saved. In addition, the airflow continuously generated by 13 the fan and circulating inside the circulation passage is not only heated by the 14 auxiliary heater but is also heated by the light-emitting diode module when emitting light. Therefore, the thermal energy produced by the light-emitting 16 diode module can be used in the present invention, and the additional thermal 17 energy is saved to reduce the power consumption of the present invention.
18 Furthermore, the vehicle lamp of the present invention further 19 comprises a temperature detector mounted in the lamp housing and located at a position away from the auxiliary heater, the temperature detector is configured 21 to obtain a temperature value inside the circulation passage, and the auxiliary 22 heater is switched according to the temperature value. When the temperature 23 value in the circulation passage detected by the temperature detector reaches a 24 default value, the auxiliary heater is controlled to be automatically switched Date Recue/Date Received 2022-08-31
6 2. Description of Related Art 7 A conventional vehicle lamp has a lamp housing and a light-emitting 8 device mounted in the lamp housing. The lamp housing has a lamp base and a 9 lamp cover assembled to each other. The light-emitting device is controlled to emit light for illumination or warning. The lamp cover is transparent and covers 11 the light-emitting device to protect the light-emitting device.
12 The conventional vehicle lamp is applied on a motor vehicle to provide 13 functions of illumination or warning. However, in a snowy environment, snow 14 easily attaches to the lamp cover. The light emitted by the vehicle lamp is blocked by the snow attached to the lamp cover accordingly. In order to prevent 16 the light emitted by the vehicle lamp from being blocked by the snow attached 17 to the lamp cover, the conventional vehicle lamp further has multiple heating 18 wires to electrically heat the lamp cover for melting the snow attached thereto.
19 The vehicle lamp can normally function to emit light in the snowy environment accordingly.
21 In the above mentioned conventional vehicle lamp, the lamp cover is 22 heated to remove the snow by the multiple heating wires mounted to the lamp 23 cover. However, the conventional vehicle lamp with heating wires mounted to 24 the lamp cover has problems of uneven heating and slow heat transfer.
The Date Recue/Date Received 2022-08-31 1 applicant of the present invention equips a hot airflow generating mechanism 2 inside the lamp cover to generate hot airflow inside the lamp cover all over for 3 melting the snow attached to the lamp cover and keep the vehicle lamp 4 normally functioning in the snowy environment.
Although the above mentioned vehicle lamp equipped with the hot 6 airflow generating mechanism provides the function of melting snow as the 7 vehicle lamp with heating wires. The hot airflow generating mechanism fully 8 heats up the vehicle lamp and has problems of unconcentrated heating and 9 large electricity consumption. Therefore, the snow attached to a main transmitting area of the lamp cover cannot be removed easily, and the light 11 emitted from the vehicle lamp is blocked by the snow still attached to the lamp 12 cover. The vehicle lamp hardly provides its original function of illumination or 13 warning.
14 To overcome the shortcomings, the present invention provides a vehicle lamp to mitigate or obviate the aforementioned problems.
17 One aspect of the invention is to provide a vehicle lamp to improve the 18 problems of unconcentrated heating, failure to efficiently remove snow 19 attached to the lamp cover, and high power consumption of the conventional vehicle lamp.
21 The vehicle lamp comprises a lamp housing, a light-emitting device, a 22 fan, and an auxiliary heater. The lamp housing has a lamp base, a lamp cover, 23 and an airflow circulating structure. The lamp cover is transparent, is mounted 24 to the lamp base to form a chamber between the lamp cover and the lamp base, Date Recue/Date Received 2022-08-31 1 and has a main transmitting area. The airflow circulating structure is formed in 2 the chamber between the lamp cover and the lamp base. The chamber is 3 separated by the airflow circulating structure to form a circulation passage in 4 the chamber and located at a position corresponding to the main transmitting area. The light-emitting device is mounted in the lamp housing and has at least 6 one light-emitting diode module mounted in the chamber and located at a 7 position corresponding to the main transmitting area of the lamp cover.
The at 8 least one light-emitting diode module is configured to emit light capable of 9 passing through the circulation passage and the main transmitting area of the lamp cover and is configured to produce thermal energy when the at least one 11 light-emitting diode module emits light. The thermal energy produced by the at 12 least one light-emitting diode transfers into the circulation passage.
The fan is 13 mounted in the lamp housing for generating airflow inside the circulation 14 passage. The auxiliary heater is mounted in the lamp housing and is adapted to be controlled to produce thermal energy inside the circulation passage. The 16 airflow in the circulation passage generated by the fan is heated by the thermal 17 energy produced from the auxiliary heater and the at least one light-emitting 18 diode module and turns into thermal airflow to heat up the main transmitting 19 area of the lamp cover.
The vehicle lamp has the following advantages:
21 1. Rapid and efficient removal of the snow attached to the main 22 transmitting area of the lamp cover by intensive heating: The vehicle lamp of 23 the present invention has the circulation passage being circular and formed by 24 the airflow circulating structure disposed inside the lamp cover and Date Recue/Date Received 2022-08-31 1 corresponding to the main transmitting area in position, the fan for generating 2 airflow inside the circulation passage, and the auxiliary heater and the light-3 emitting device for heating the airflow inside the circulation passage.
The main 4 transmitting area is evenly and intensively heated to make the snow attached to the lamp cover rapidly absorb thermal energy and melted and let the light 6 emitted by the light-emitting device pass through the main transmitting area for 7 illumination.
8 2. Reduced power consumption: With the arrangement of the vehicle 9 lamp of the present invention, the snow is removed by heating the main transmitting area of the lamp cover rather than by heating the entire lamp cover 11 as the conventional vehicle lamp, and thereby power consumption of the 12 present invention is saved. In addition, the airflow continuously generated by 13 the fan and circulating inside the circulation passage is not only heated by the 14 auxiliary heater but is also heated by the light-emitting diode module when emitting light. Therefore, the thermal energy produced by the light-emitting 16 diode module can be used in the present invention, and the additional thermal 17 energy is saved to reduce the power consumption of the present invention.
18 Furthermore, the vehicle lamp of the present invention further 19 comprises a temperature detector mounted in the lamp housing and located at a position away from the auxiliary heater, the temperature detector is configured 21 to obtain a temperature value inside the circulation passage, and the auxiliary 22 heater is switched according to the temperature value. When the temperature 23 value in the circulation passage detected by the temperature detector reaches a 24 default value, the auxiliary heater is controlled to be automatically switched Date Recue/Date Received 2022-08-31
5 1 off. The thermal energy produced by the lighting-emitting diode module during 2 light emission keeps heating up the airflow inside the circulation passage, and 3 thereby the power consumption of the present invention is further reduced.
4 When the temperature value in the circulation passage obtained by the temperature detector is lower than the default value, the auxiliary heater is
4 When the temperature value in the circulation passage obtained by the temperature detector is lower than the default value, the auxiliary heater is
6 controlled to be automatically switched on to heat up the airflow generated
7 inside the circulation passage.
8 Other objectives, advantages and novel features of the invention will
9 become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
12 Fig. 1 is a front view of a vehicle lamp in accordance with the present 13 invention;
14 Fig. 2 is a cross sectional side view of the vehicle lamp in Fig. 1;
Fig. 3 is another cross sectional side view of the vehicle lamp in Fig. 1;
16 and 17 Fig. 4 is an operational front view of the vehicle lamp in Fig. 1.
19 With reference to Figs. 1 to 3, a vehicle lamp in accordance with the present invention comprises a lamp housing 1, a light-emitting device 20, a fan 21 30, and an auxiliary heater 40.
22 With reference to Figs. 1 to 3, the lamp housing 1 has a lamp base 10, a 23 lamp cover 11, and an airflow circulating structure12. The lamp cover 11 is 24 transparent and is mounted to the lamp base 10 to form a chamber between the Date Recue/Date Received 2022-08-31 1 lamp base 10 and the lamp cover 11. The lamp cover 11 has a main transmitting 2 area 110 defined according to a lighting shape of the vehicle lamp. The airflow 3 circulating structure 12 is formed in the chamber between the lamp base
12 Fig. 1 is a front view of a vehicle lamp in accordance with the present 13 invention;
14 Fig. 2 is a cross sectional side view of the vehicle lamp in Fig. 1;
Fig. 3 is another cross sectional side view of the vehicle lamp in Fig. 1;
16 and 17 Fig. 4 is an operational front view of the vehicle lamp in Fig. 1.
19 With reference to Figs. 1 to 3, a vehicle lamp in accordance with the present invention comprises a lamp housing 1, a light-emitting device 20, a fan 21 30, and an auxiliary heater 40.
22 With reference to Figs. 1 to 3, the lamp housing 1 has a lamp base 10, a 23 lamp cover 11, and an airflow circulating structure12. The lamp cover 11 is 24 transparent and is mounted to the lamp base 10 to form a chamber between the Date Recue/Date Received 2022-08-31 1 lamp base 10 and the lamp cover 11. The lamp cover 11 has a main transmitting 2 area 110 defined according to a lighting shape of the vehicle lamp. The airflow 3 circulating structure 12 is formed in the chamber between the lamp base
10 and 4 the lamp cover 11. The chamber is separated by the airflow circulating structure 12 to form a circulation passage 120 in the chamber. The circulation passage 6 120 and the main transmitting area 110 correspond in position.
7 With reference to Figs. 1 to 3, in this embodiment, the lamp cover 11 8 has a main transmitting plate 111 and a peripheral wall 112 surrounding a rim 9 of the main transmitting plate 111 and protruding from the main transmitting plate 111 toward the lamp base 10. The main transmitting area 110 is defined at
7 With reference to Figs. 1 to 3, in this embodiment, the lamp cover 11 8 has a main transmitting plate 111 and a peripheral wall 112 surrounding a rim 9 of the main transmitting plate 111 and protruding from the main transmitting plate 111 toward the lamp base 10. The main transmitting area 110 is defined at
11 the main transmitting plate 111. The main transmitting plate 111 is assembled
12 to the lamp base 10 via the peripheral wall 112. The airflow circulating
13 structure 12 is integrally formed on the lamp cover 11 and is transparent. The
14 airflow circulating structure 12 protrudes from an inner surface of the main transmitting plate 111 toward the lamp base 10. In this embodiment, the airflow 16 circulating structure 12 includes an inner annular wall 121 being annular and an 17 outer annular wall 122 surrounding the inner annular wall 121. The circulation 18 passage 120 is annular and is formed between the inner annular wall 121 and 19 the outer annular wall 122. The inner annular wall 121 and the outer annular wall 122 of the airflow circulating structure 12 may be spaced from the lamp 21 base 10.
22 With reference to Figs. 1 to 3, the light-emitting device 20 is mounted 23 in the light housing 1 and is secured to the lamp base 10. The light-emitting 24 device 20 is electrically connected to an external power supplier and is adapted Date Recue/Date Received 2022-08-31 1 to be controlled to emit light. The light-emitting device 20 has at least one 2 light-emitting diode module 21. Each of said at least one light-emitting diode 3 module 21 comprises one or multiple light emitting diodes. The at least one 4 light-emitting diode module 21 is located at a position corresponding to the main transmitting area 110 of the lamp cover 11. The light-emitting diode 6 module 21 emits light passing through the circulation passage 120 and the main 7 transmitting area 110 of the lamp cover 11. The light-emitting diode module 21 8 generates thermal energy during light emission. The thermal energy produced 9 by the light-emitting diode module 21 transfers into the circulation passage 120.
II With reference to Figs. 1 to 3, the fan 30 is mounted in the lamp 12 housing 1 and is located in the circulation passage 120. The fan 30 is adapted to 13 be controlled to generate airflow inside the circulation passage 120.
14 With reference Figs. 1 to 3, the auxiliary heater 40 is mounted in the lamp housing 1 and is adapted to be controlled to generate thermal energy 16 transferring into the circulation passage 120. In this embodiment, the auxiliary 17 heater 40 is located at an inlet side of the fan 30, so the thermal energy 18 generated by the auxiliary heater 40 is spread by the fan 30.
19 With reference to Figs. 1 to 3, the vehicle lamp in accordance with the present invention further comprises a temperature detector 50 mounted in the 21 lamp housing 1 and located away from the auxiliary heater 40. The temperature 22 detector 50 is configured to obtain a temperature value inside the circulation 23 passage 120. The auxiliary heater 40 is able to be switched according to the 24 temperature value.
Date Recue/Date Received 2022-08-31 With reference to Figs. 2 to 4, when the vehicle lamp in accordance 2 with the present invention is in use, the vehicle lamp is electrically connected 3 to a control device and is controlled by the control device. The light-emitting 4 device 20 is controlled to emit light. Light emitted by the light-emitting diode module 21 of the light-emitting device 20 transmits through the main 6 transmitting area 110 of the lamp cover 11 for illumination.
7 In a snowy environment, the snow attached to the lamp cover 11 blocks 8 the main transmitting area 110 of the lamp cover 11. When the vehicle lamp is 9 controlled to illuminate, the auxiliary heater 40 and the fan 30 are turned on at the same time. The thermal energy generated by the auxiliary heater 40 is 11 transferred into the circulation passage 120 in the lamp housing 1 and works 12 with the airflow in the circulation passage 120 generated by the fan 30 to form 13 a thermal airflow rapidly and cyclically flowing along the circulation passage 14 120. During flowing, the thermal airflow intensively heats up the main transmitting area 110 defined at the main transmitting plate 111 of the lamp 16 cover 11, which corresponds to the circulation passage 120 in position.
The 17 snow attached to the main transmitting area 110 absorbs the thermal energy and 18 is melted thereby. Accordingly, the light emitted by the light-emitting diode 19 module 21 can transmit through the main transmitting area 110 for illumination.
21 During operation of the vehicle lamp, the auxiliary heater 40 22 continuously transfers thermal energy into the circulation passage 120 in the 23 lamp housing 1. The light-emitting diode module 21 transfers thermal energy 24 into the circulation passage 120 during light emission. With an assistance of the Date Recue/Date Received 2022-08-31 1 airflow generated by the fan 30 in the circulation passage 120, a thermal 2 airflow is generated and continuously and cyclically flows along the circulation 3 passage 120. During flowing, the thermal airflow heats up the main 4 transmitting area 110 of the lamp cover 11, which corresponds to the circulation passage 120 in position. Whereby, the snow falling and attached to 6 the main transmitting area 110 absorbs thermal energy and melts to let the light 7 emitted from the said light-emitting diode module 21 pass through the main 8 transmitting area 110 for illumination. Only the key portion, the main 9 transmitting area 110, of the lamp cover 11 is heated for removing snow, so the power consumption of the present invention is reduced.
11 In addition, operation of the auxiliary heater 40 can be based on actual 12 requirement. In the snowy environment, the auxiliary heater 40 can be 13 controlled to continuously transfer thermal energy with the said light-emitting 14 diode module 21. The thermal energy produced by the auxiliary heater 40 and the said light-emitting diode module 21 can be continuously transferred into the 16 circulation passage 120.
17 In another condition, after the auxiliary heater 40 has been operating 18 for a default time period, the auxiliary heater 40 is controlled to be turned off, 19 and the fan 30 keeps generating airflow. The thermal energy produced by the said light-emitting diode module 21 is transferred into the circulation passage 21 120 to form the thermal airflow continuously and cyclically flowing along the 22 circulation passage 120.
23 In another condition, after the auxiliary heater 40 has operated for a 24 while, when the temperature value in the circulation passage 120 obtained by Date Recue/Date Received 2022-08-31 1 the temperature detector 50 reaches a default value, the auxiliary heater 40 is 2 controlled to be turned off The fan 30 keeps generating airflow, the thermal 3 energy produced by the said light-emitting diode module 21 keeps being 4 transferred into the circulation passage 120 to form the thermal airflow continuously and cyclically flowing along the circulation passage 120. So a 6 proper amount of thermal energy can be transferred into the circulation passage 7 120. With the assistance of the fan 30, the thermal airflow keeps flowing along 8 the circulation passage 120 corresponding to the main transmitting area 110 in 9 position and heats up the main transmitting area 110 defined at the main transmitting plate 111 of the lamp cover 11. Whereby, the snow falling and 11 attached to the main transmitting area 110 immediately absorbs the thermal 12 energy to melt. The light emitted by the light-emitting diode module 21 passes 13 through the main transmitting area 110 for illumination. When the temperature 14 value in the circulation passage 120 detected by the temperature detector 50 is lower than a default value, the auxiliary heater 40 is automatically controlled to 16 be turned on to transfer thermal energy into the circulation passage 120.
17 Accordingly, the vehicle lamp in accordance with the present invention has an 18 advantage of energy saving.
Date Recue/Date Received 2022-08-31
22 With reference to Figs. 1 to 3, the light-emitting device 20 is mounted 23 in the light housing 1 and is secured to the lamp base 10. The light-emitting 24 device 20 is electrically connected to an external power supplier and is adapted Date Recue/Date Received 2022-08-31 1 to be controlled to emit light. The light-emitting device 20 has at least one 2 light-emitting diode module 21. Each of said at least one light-emitting diode 3 module 21 comprises one or multiple light emitting diodes. The at least one 4 light-emitting diode module 21 is located at a position corresponding to the main transmitting area 110 of the lamp cover 11. The light-emitting diode 6 module 21 emits light passing through the circulation passage 120 and the main 7 transmitting area 110 of the lamp cover 11. The light-emitting diode module 21 8 generates thermal energy during light emission. The thermal energy produced 9 by the light-emitting diode module 21 transfers into the circulation passage 120.
II With reference to Figs. 1 to 3, the fan 30 is mounted in the lamp 12 housing 1 and is located in the circulation passage 120. The fan 30 is adapted to 13 be controlled to generate airflow inside the circulation passage 120.
14 With reference Figs. 1 to 3, the auxiliary heater 40 is mounted in the lamp housing 1 and is adapted to be controlled to generate thermal energy 16 transferring into the circulation passage 120. In this embodiment, the auxiliary 17 heater 40 is located at an inlet side of the fan 30, so the thermal energy 18 generated by the auxiliary heater 40 is spread by the fan 30.
19 With reference to Figs. 1 to 3, the vehicle lamp in accordance with the present invention further comprises a temperature detector 50 mounted in the 21 lamp housing 1 and located away from the auxiliary heater 40. The temperature 22 detector 50 is configured to obtain a temperature value inside the circulation 23 passage 120. The auxiliary heater 40 is able to be switched according to the 24 temperature value.
Date Recue/Date Received 2022-08-31 With reference to Figs. 2 to 4, when the vehicle lamp in accordance 2 with the present invention is in use, the vehicle lamp is electrically connected 3 to a control device and is controlled by the control device. The light-emitting 4 device 20 is controlled to emit light. Light emitted by the light-emitting diode module 21 of the light-emitting device 20 transmits through the main 6 transmitting area 110 of the lamp cover 11 for illumination.
7 In a snowy environment, the snow attached to the lamp cover 11 blocks 8 the main transmitting area 110 of the lamp cover 11. When the vehicle lamp is 9 controlled to illuminate, the auxiliary heater 40 and the fan 30 are turned on at the same time. The thermal energy generated by the auxiliary heater 40 is 11 transferred into the circulation passage 120 in the lamp housing 1 and works 12 with the airflow in the circulation passage 120 generated by the fan 30 to form 13 a thermal airflow rapidly and cyclically flowing along the circulation passage 14 120. During flowing, the thermal airflow intensively heats up the main transmitting area 110 defined at the main transmitting plate 111 of the lamp 16 cover 11, which corresponds to the circulation passage 120 in position.
The 17 snow attached to the main transmitting area 110 absorbs the thermal energy and 18 is melted thereby. Accordingly, the light emitted by the light-emitting diode 19 module 21 can transmit through the main transmitting area 110 for illumination.
21 During operation of the vehicle lamp, the auxiliary heater 40 22 continuously transfers thermal energy into the circulation passage 120 in the 23 lamp housing 1. The light-emitting diode module 21 transfers thermal energy 24 into the circulation passage 120 during light emission. With an assistance of the Date Recue/Date Received 2022-08-31 1 airflow generated by the fan 30 in the circulation passage 120, a thermal 2 airflow is generated and continuously and cyclically flows along the circulation 3 passage 120. During flowing, the thermal airflow heats up the main 4 transmitting area 110 of the lamp cover 11, which corresponds to the circulation passage 120 in position. Whereby, the snow falling and attached to 6 the main transmitting area 110 absorbs thermal energy and melts to let the light 7 emitted from the said light-emitting diode module 21 pass through the main 8 transmitting area 110 for illumination. Only the key portion, the main 9 transmitting area 110, of the lamp cover 11 is heated for removing snow, so the power consumption of the present invention is reduced.
11 In addition, operation of the auxiliary heater 40 can be based on actual 12 requirement. In the snowy environment, the auxiliary heater 40 can be 13 controlled to continuously transfer thermal energy with the said light-emitting 14 diode module 21. The thermal energy produced by the auxiliary heater 40 and the said light-emitting diode module 21 can be continuously transferred into the 16 circulation passage 120.
17 In another condition, after the auxiliary heater 40 has been operating 18 for a default time period, the auxiliary heater 40 is controlled to be turned off, 19 and the fan 30 keeps generating airflow. The thermal energy produced by the said light-emitting diode module 21 is transferred into the circulation passage 21 120 to form the thermal airflow continuously and cyclically flowing along the 22 circulation passage 120.
23 In another condition, after the auxiliary heater 40 has operated for a 24 while, when the temperature value in the circulation passage 120 obtained by Date Recue/Date Received 2022-08-31 1 the temperature detector 50 reaches a default value, the auxiliary heater 40 is 2 controlled to be turned off The fan 30 keeps generating airflow, the thermal 3 energy produced by the said light-emitting diode module 21 keeps being 4 transferred into the circulation passage 120 to form the thermal airflow continuously and cyclically flowing along the circulation passage 120. So a 6 proper amount of thermal energy can be transferred into the circulation passage 7 120. With the assistance of the fan 30, the thermal airflow keeps flowing along 8 the circulation passage 120 corresponding to the main transmitting area 110 in 9 position and heats up the main transmitting area 110 defined at the main transmitting plate 111 of the lamp cover 11. Whereby, the snow falling and 11 attached to the main transmitting area 110 immediately absorbs the thermal 12 energy to melt. The light emitted by the light-emitting diode module 21 passes 13 through the main transmitting area 110 for illumination. When the temperature 14 value in the circulation passage 120 detected by the temperature detector 50 is lower than a default value, the auxiliary heater 40 is automatically controlled to 16 be turned on to transfer thermal energy into the circulation passage 120.
17 Accordingly, the vehicle lamp in accordance with the present invention has an 18 advantage of energy saving.
Date Recue/Date Received 2022-08-31
Claims (6)
1. A vehicle lamp comprising:
a lamp housing having a lamp base;
a lamp cover being transparent, mounted to the lamp base to form a chamber between the lamp cover and the lamp base, and having a main transmitting area; and an airflow circulating structure formed in the chamber between the lamp cover and the lamp base; and the chamber separated by the airflow circulating structure to form a circulation passage in the chamber and located at a position corresponding to the main transmitting area;
a light-emitting device mounted in the lamp housing and having at least one light-emitting diode module mounted in the chamber and located at a position corresponding to the main transmitting area of the lamp cover, the at least one light-emitting diode module co igured to emit light capable of passing through the circulation passage and the main transmitting area of the lamp cover and configured to generate thermal energy when the at least one light-emitting diode module emits light;
the thermal energy generated by the at least one light-emitting diode module transferring into the circulation passage;
a fan mounted in the lamp housing for generating airflow inside the circulation passage; and an auxiliary heater mounted in the lamp housing and adapted to be controlled to generate thermal energy inside the circulation passage, wherein the airflow in the circulation passage generated by the fan is heated by the thermal energy generated from the auxiliary heater and the at least one light-emitting diode module and turns into thermal airflow to heat up the main transmitting area of the lamp cover.
a lamp housing having a lamp base;
a lamp cover being transparent, mounted to the lamp base to form a chamber between the lamp cover and the lamp base, and having a main transmitting area; and an airflow circulating structure formed in the chamber between the lamp cover and the lamp base; and the chamber separated by the airflow circulating structure to form a circulation passage in the chamber and located at a position corresponding to the main transmitting area;
a light-emitting device mounted in the lamp housing and having at least one light-emitting diode module mounted in the chamber and located at a position corresponding to the main transmitting area of the lamp cover, the at least one light-emitting diode module co igured to emit light capable of passing through the circulation passage and the main transmitting area of the lamp cover and configured to generate thermal energy when the at least one light-emitting diode module emits light;
the thermal energy generated by the at least one light-emitting diode module transferring into the circulation passage;
a fan mounted in the lamp housing for generating airflow inside the circulation passage; and an auxiliary heater mounted in the lamp housing and adapted to be controlled to generate thermal energy inside the circulation passage, wherein the airflow in the circulation passage generated by the fan is heated by the thermal energy generated from the auxiliary heater and the at least one light-emitting diode module and turns into thermal airflow to heat up the main transmitting area of the lamp cover.
2. The vehicle lamp as claimed in claim 1, wherein the auxiliary heater is located at an inlet side of the fan.
3. The vehicle lamp as claimed in claim 1, wherein the vehicle lamp comprises a temperature detector mounted in the lamp housing and located at a position away from the auxiliary heater, the temperature detector is configured to obtain a temperature value inside the circulation passage; and the auxiliary heater is adapted to be switched according to the temperature value.
4. The vehicle lamp as claimed in claim 3, wherein the auxiliary heater is located at an inlet side of the fan.
5. The vehicle lamp as claimed in any one of claims 1 to 4, wherein the lamp cover has a main transmitting plate; and a peripheral wall protruding from a rim of the main transmitting plate and assembled to the lamp base;
the main transmitting area is defined at the main transmitting plate; and the airflow circulating structure is integrally formed on the lamp cover, is transparent, and protrudes from an inner surface of the main transmitting plate toward the lamp base.
the main transmitting area is defined at the main transmitting plate; and the airflow circulating structure is integrally formed on the lamp cover, is transparent, and protrudes from an inner surface of the main transmitting plate toward the lamp base.
6. The vehicle lamp as claimed in claim 5, wherein the airflow circulating structure includes an inner annular wall and an outer annular wall surrounding the inner annular wall; and the circulation passage is formed between the inner annular wall and the outer annular wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3171706A CA3171706A1 (en) | 2022-08-31 | 2022-08-31 | Vehicle lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3171706A CA3171706A1 (en) | 2022-08-31 | 2022-08-31 | Vehicle lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3171706A1 true CA3171706A1 (en) | 2024-02-29 |
Family
ID=90052880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3171706A Pending CA3171706A1 (en) | 2022-08-31 | 2022-08-31 | Vehicle lamp |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA3171706A1 (en) |
-
2022
- 2022-08-31 CA CA3171706A patent/CA3171706A1/en active Pending
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