JP5961310B1 - Radiator for vehicle lamp - Google Patents

Abstract

A heat dissipating device is provided behind a vehicular lamp assembly, and heat energy generated by the vehicular lamp assembly is diffused by blowing air from a fan to quickly dissipate heat from the vehicular lamp that achieves an optimum temperature drop and heat dissipation effect. Providing a device. A vehicle lamp assembly includes a main body, a heat dissipating seat, a connecting sleeve, a circuit board, and a lens. The heat dissipating seat 21 is provided on one end face of the main body 20. The circuit board 23 is provided on one end face of the heat dissipating seat 21 and the connecting sleeve 22. The lens 24 is provided with a high beam translucent part 243 and a low beam translucent part 244 on the outer wall surface. In the circuit board 23, at least one LED lamp 231 correctly corresponds to the high beam translucent portion 243 of the lens 24. In the circuit board 23, at least another LED lamp 231 correctly corresponds to the low beam translucent portion 244 of the lens. [Selection] Figure 3

Description

  The present invention relates to a heat dissipation device for a vehicular lamp.

  Generally, when a vehicle travels, the vehicle headlamp can switch between a high beam and a low beam according to different road conditions and the driver's line of sight. As shown in FIGS. 1 and 2, the vehicular lamp 1 of a general vehicle is provided with a lamp housing 10. A housing 100 is formed in the lamp housing 10, and the housing 100 is a reflecting surface 101 having an arcuate wall surface. A light emitter 11 is provided in the storage chamber 100.

  The light emitter 11 is an OSRAM bulb, a xenon lamp, or an LED lamp. A partition plate 12 is provided in front of the lamp housing 10. Translucent holes 120 are formed in the partition plate 12. A connecting seat 13 is provided in front of the partition plate 12. A light shielding assembly 14 is provided on the connecting seat 13. The light shielding assembly 14 is provided with an electromagnetic valve 140 and a light shielding plate 141. A translucent housing 15 is provided in front of the connecting seat 13. The translucent housing 15 is fixed to the connecting seat 13 by a fixed frame 16. Therefore, the light emitter 11 is reflected through the reflecting surface 101 of the storage chamber 100 in the lamp housing 10 by emitting light, and then projected to the outside by the translucent housing 15.

  Further, by installing the light shielding assembly 14, the projection range and angle of the light source 17 are controlled, and switching between the high beam and the low beam can be performed. However, since the light source 17 of the conventional vehicular lamp 1 is reflected through the reflecting surface 101 of the lamp housing 10 and then projected to the outside, the projected illumination light is extremely scattered and uniform illumination cannot be performed. In addition, the luminance is relatively small. Further, the light emitting body 11 of the conventional OSRAM bulb, xenon lamp or LED lamp of the vehicle lamp 1 is provided in the housing chamber 100 of the lamp housing 10 and no heat dissipation structure is provided in the lamp housing 10 or the lamp socket. Therefore, the light emitter 11 cannot dissipate the high temperature generated during light emission. For this reason, the lamp housing 10 is heated at a high temperature, and the light emitter 11 and the circuit equipment are likely to burn out, which may affect the service life of the vehicular lamp 1.

Japanese Utility Model Publication No. 5-87712

  The main object of the present invention is to solve the problem of lowering the service life of a vehicular lamp due to the fact that a conventional vehicular lamp generates a high temperature during use, and a heat dissipation device is provided behind the vehicular lamp assembly. Another object of the present invention is to provide a vehicle lamp heat dissipating device that diffuses the thermal energy generated by the vehicle lamp assembly by the blower of the electric fan and quickly achieves an optimal temperature lowering and heat dissipating effect.

  The heat dissipating device for a vehicular lamp according to the present invention includes a vehicular lamp assembly. The vehicle lamp assembly includes a main body, a heat dissipation seat, a connecting sleeve, a circuit board, and a lens. The heat dissipating seat is provided on one end face of the main body. In the heat dissipating seat, a plurality of heat dissipating fins are provided on the outer wall surface. The connecting sleeve is provided so as to cover the outer wall surface of the heat dissipating seat. The circuit board is provided on one end face of the heat dissipating seat and the connecting sleeve. The circuit board is provided with at least two LED lamps. The lens is provided on the heat dissipation seat and the connecting sleeve, and a concave chamber is formed in the lens. The circuit board is located in the concave chamber of the lens. The lens is provided with a high beam translucent part and a low beam translucent part on the outer wall surface. In the circuit board, at least one LED lamp correctly corresponds to the high beam translucent part of the lens. In the circuit board, at least another LED lamp correctly corresponds to the low beam translucent portion of the lens. As its feature, the vehicular lamp assembly is provided with a heat radiating device on the other end surface, and the heat radiating device is constituted by a fixed seat, a fan, and a lid. The fixed seat forms a storage chamber on one end surface, and forms a plurality of vent holes communicating with the storage chamber on the other end surface. The electric fan is fitted into the holding room of the fixed seat. The lid is provided so as to cover the fixed seat. A plurality of ventilation holes are formed in the lid.

  In the vehicle lamp heat dissipating device according to the present invention, a protruding seat is formed on the other end surface of the main body of the vehicle lamp, and a storage chamber is formed in the protruding seat. The accommodation chamber is formed on the wall surface so that the stereotactic convex body is opposed. A connecting convex body is formed on the other end surface of the fixed seat in the heat dissipation device. The connecting convex body is fitted into the storage chamber of the protruding seat of the main body in the vehicle lamp assembly. The connecting convex body is formed on the outer wall surface so that the fitting groove is opposed to the fitting groove, and the fitting groove is provided with a notch communicating with the end of the connecting convex body at the end. The notch and the fitting groove have an L shape. An abutment body is provided between the notch and the fitting groove, and the heat radiating device is placed behind the vehicle lamp assembly by being fitted into the fitting groove of the connecting convex body in the fixed seat by the localization convex body of the main body. It is firmly assembled and prevented from falling off.

  In the heat radiating device for a vehicle lamp according to the present invention, a packing ring is fitted into the connecting convex body of the fixed seat in the heat radiating device. Since the packing ring is firmly fitted, the heat dissipation device and the vehicle lamp assembly are more firmly assembled.

  In the heat radiating device for a vehicle lamp according to the present invention, a plurality of screw holes are formed on the end face of the fixed seat in the heat radiating device. The lid body is formed with a through hole at a position corresponding to the screw hole of the fixing seat, and the lid body has a screw fixing unit formed in the through hole. The screw fixing unit is provided in the screw hole of the fixing seat. Therefore, the lid is firmly assembled to the fixed seat.

  In the vehicle lamp heat dissipation device according to the present invention, as a merit, since the heat dissipation device is provided behind the vehicle lamp assembly, the heat energy generated in the vehicle lamp assembly is diffused by the blower of the electric fan. Thus, an optimum temperature drop and heat dissipation effect can be achieved quickly, and the service life of the vehicular lamp is increased.

It is a schematic diagram which shows the state in which the low beam of the conventional vehicle headlamp was projected. It is a schematic diagram which shows the state by which the high beam of the conventional vehicle headlamp was projected. It is a disassembled perspective view which shows the thermal radiation apparatus of the vehicle lamp by embodiment of this invention. 1 is an exploded perspective view showing a vehicle lamp assembly and a heat dissipation device of a vehicle lamp heat dissipation device according to an embodiment of the present invention. 1 is an exploded perspective view showing a vehicle lamp assembly and a heat dissipation device of a vehicle lamp heat dissipation device according to an embodiment of the present invention. It is a perspective view which shows the assembly state of the thermal radiation apparatus of the vehicle lamp by embodiment of this invention. It is a perspective view which shows the assembly state of the thermal radiation apparatus of the vehicle lamp by embodiment of this invention. It is sectional drawing which shows the assembly state of the thermal radiation apparatus of the vehicle lamp by embodiment of this invention. It is a figure which shows a latching coupling | bonding and a localization state, when the vehicle lamp assembly and heat dissipation apparatus of the heat dissipation apparatus of the vehicle lamp by embodiment of this invention are assembled.

  An embodiment of the present invention for achieving the above-mentioned purpose and effect will be described in detail with reference to the drawings.

  As shown in FIGS. 3 to 5, the embodiment of the present invention mainly includes a vehicle lamp assembly 2 and a heat dissipation device 3. The vehicular lamp assembly 2 includes a main body 20, a heat dissipating seat 21, a connecting sleeve 22, a circuit board 23, and a lens 24. The main body 20 has a stereotaxic groove 200 formed on one end face. Two stereotaxic grooves 201 are formed in the stereotaxic groove 200. The main body 20 is provided with a protruding seat 202 on the other end surface. The protruding seat 202 forms a storage chamber 203. The storage chamber 203 is provided on the wall surface so that the stereotaxic body 204 faces the wall.

  The main body 20 forms a through hole 205 in the middle. The main body 20 forms two through holes 206. The two screw members 207 are formed in the two through holes 206, respectively. The heat dissipating seat 21 is provided on one end face of the main body 20. The heat dissipating seat 21 has a stereotactic convex edge 210 formed on one end face. The localization convex edge 210 is formed in the localization groove 200 of the main body 20. The heat dissipating seat 21 is formed with a localization convex body 211, two localization through holes 212, and two fixing screw holes 213 on the other end face. The two localization through holes 212 and the two fixing screw holes 213 penetrate the end face of the localization convex edge 210. The two stereotactic projections 214 are respectively drilled in the two stereotactic through holes 212. The heat dissipating seat 21 is formed on the outer wall surface such that the stereotactic screw hole 215 is opposed to the heat dissipating seat 21. The heat dissipating seat 21 is provided with a plurality of heat dissipating fins 216 in an annular shape on the outer wall surface. The heat dissipating seat 21 forms a through hole 217 in the middle.

  The connection sleeve 22 is provided so as to cover the outer wall surface of the heat dissipation seat 21. The connecting sleeve 22 is formed with a through hole 220 facing each other. The two through holes 220 correctly correspond to the two screw holes 215 on the outer wall surface of the heat dissipating seat 21. The circuit board 23 is provided on one end face of the heat dissipating seat 21 and the connecting sleeve 22. The circuit board 23 forms a localization hole 230. The localization hole 230 corresponds to the localization convex body 211 of the heat dissipation seat 21 correctly. The circuit board 23 is provided with at least two LED lamps 231 and two through holes 232. The two through holes 232 correctly correspond to the two fixing screw holes 213 of the heat dissipating seat 21. In the circuit board 23, fixing screw members 233 are formed in the two through holes 232. The lens 24 is provided on the heat dissipating seat 21 and the connecting sleeve 22. A concave chamber 240 is formed in the lens 24. The circuit board 23 is located in the concave chamber 240 of the lens 24. The lens 24 is provided on the outer wall surface so that the through hole 241 is opposed to the lens 24.

  The through hole 241 correctly corresponds to the through hole 220 of the connecting sleeve 22 and the stereotactic screw hole 215 of the heat dissipating seat 21. A screw fixing unit 242 is formed in the through hole 241. The screw fixing unit 242 is formed in the through hole 220 of the connecting sleeve 22 and then screwed into the stereotactic screw hole 215 of the heat dissipating seat 21. The lens 24 is provided with a high beam translucent part 243 and a low beam translucent part 244 on the outer wall surface. The heat dissipation device 3 is provided behind the main body 20 in the vehicular lamp assembly 2. The heat radiating device 3 includes a fixed seat 30, a fan 31, a lid body 32, and a packing ring 33.

  The fixed seat 30 forms a polygonal storage chamber 300 on one end face (FIG. 5). In addition, the fixed seat 30 further includes a plurality of screw holes 301 on the end surface, and a plurality of vent holes 302 communicating with the storage chamber 300 on the other end surface. The fixed seat 30 is provided with a connecting convex body 303 on the other end face. The connecting convex body 303 is fitted into the storage chamber 203 of the main body 20 in the vehicular lamp assembly 2. The connecting convex body 303 is provided on the outer wall surface so that the fitting groove 304 is opposed. The fitting groove 304 forms a notch 305 communicating with the end of the connecting convex body 303 at the end. The notch 305 and the fitting groove 304 are L-shaped. A contact body 306 is provided between the notch 305 and the fitting groove 304.

  The electric fan 31 is fitted into the accommodation chamber 300 of the fixed seat 30. The electric fan 31 is a multi-sided shape like the housing chamber 300 of which the outer shape is the fixed seat 30. The lid body 32 is provided so as to cover the fixed seat 30. The lid body 32 forms a through hole 320 at a position corresponding to the screw hole 301 of the fixed seat 30. A screw fixing unit 321 is formed in the through hole 320. The lid 32 further forms a plurality of vent holes 322. The packing ring 33 is fitted by the connecting convex body 303 of the fixed seat 30. The above is the heat dissipating device for the vehicular lamp.

  When assembling, as shown in FIG. 3 to FIG. 9, two localization convex columns 214 are respectively drilled in the two localization through holes 212 of the heat radiating seat 21 so that one end of the two localization convex columns 214 is dissipated. The seat 21 is projected and extended to the stereotaxic edge 210. Next, by fitting the localization convex edge 210 of the heat radiating seat 21 into the localization concave groove 200 of the main body 20, the ends of the two localization convex columns 214 are fitted into the localization concave holes 201 of the main body 20. Next, two screw members 207 are formed in the two through holes 206 of the main body 20, and screwed to one end of the two fixing screw holes 213 in the heat radiating seat 21, so that the heat radiating seat 21 is fixed to the main body 20.

  Further, by providing the connecting sleeve 22 so as to cover the heat dissipating seat 21, the through hole 220 of the connecting sleeve 22 and the stereotaxic screw hole 215 on the outer wall surface of the heat dissipating seat 21 correspond correctly. Next, by providing the circuit board 23 at one end of the heat dissipating seat 21 and the connecting sleeve 22, the localization convex body 211 of the heat dissipating seat 21 is fitted into the localization hole 230 of the circuit board 23, and the two through holes 232 of the circuit board 23 are formed. It corresponds correctly to the two fixing screw holes 213 of the heat dissipating seat 21. Two fixing screw members 233 are formed in the through hole 232 of the circuit board 23 and screwed to the other end of the two fixing screw holes 213 in the heat dissipating seat 21. After the circuit board 23 is fixed to the heat dissipating seat 21, the lens 24 is provided in the heat dissipating seat 21 and the connecting sleeve 22, so that the through hole 241 that faces the outer wall surface of the lens 24 is the through hole 220 of the connecting sleeve 22. And it corresponds correctly to the stereotaxic screw hole 215 of the heat radiating seat 21.

  Next, the screw fixing unit 242 is formed in the through hole 241 and the through hole 220 of the lens 24 and the connecting sleeve 22, and is screwed into the stereotactic screw hole 215 of the heat dissipating seat 21. The lens 24 is fixed to the heat dissipation seat 21, and the circuit board 23 is provided in the concave chamber 240 of the lens 24. The lens 24 is provided with a high beam translucent part 243 and a low beam translucent part 244 on the outer wall surface. One LED lamp 231 on the circuit board 23 corresponds to the high beam translucent part 243 of the lens 24 correctly.

  In addition, at least one LED lamp 231 correctly corresponds to the low beam translucent portion 244 of the lens 24. Thus, the assembly of the vehicle lamp assembly 2 is completed. Further, after the electric fan 31 is fitted in the housing chamber 300 of the fixed seat 30, the lid body 32 is provided so as to cover the fixed seat 30. The screw fixing unit 321 is formed in the through hole 320 of the lid body 32 and screwed in the screw hole 301 of the fixing seat 30. The lid 32 is fixed to the fixed seat 30, and the electric fan 31 is positioned in the storage chamber 300 of the fixed seat 30.

  Next, the packing ring 33 is fitted by the connecting convex body 303 of the fixed seat 30, and the connecting convex body 303 of the fixed seat 30 is fitted into the accommodating chamber 203 of the protruding seat 202 in the main body 20 of the vehicle lamp assembly 2. The localization convex body 204 of the storage chamber 203 in the main body 20 is fitted into the notch 305 of the connection convex body 303 in the fixed seat 30. Next, by rotating the fixed seat 30 to a predetermined angle, the localization convex body 204 of the main body 20 is fitted into the fitting groove 304 of the connection convex body 303 in the fixed seat 30 and is localized. In addition, the contact convex body 303 of the fixing seat 30 is rotated in the opposite direction in the housing chamber 203 of the main body 20 and escaped by being contacted and positioned by the contact body 306 of the fitting groove 304. Can be prevented. Thus, the heat dissipation device 3 can be firmly assembled behind the vehicular lamp assembly 2.

  As shown in FIGS. 6 to 9, when the high beam is used, the LED lamps 231 on the circuit board 23 are all lit, but the LED lamps 231 located at positions corresponding to the low beam translucent portions 244 have half the luminous efficiency. decrease. The light source projected by the LED lamp 231 directly passes through the high beam light transmitting portion 243 and the low beam light transmitting portion 244 of the lens 24 and is scattered forward. In the light source, the angle and range of light scattering are controlled by the curvature of different arc surfaces of the surfaces of the high beam low light transmitting portion 243 and the low beam light transmitting portion 244 of the lens 24.

  When the low beam is used, the circuit board 23 lights the LED lamp 231 at a position corresponding to the low beam translucent portion 244, but the LED lamp 231 at a position corresponding to the high beam translucent portion 243 is turned off. Is done. The light source of the LED lamp 231 with light is directly projected forward by the low beam translucent part 244. When the low beam is turned on, since the projection range is relatively small and close, it is not necessary to install the light shielding assembly and the convex lens inside the vehicular lamp according to the present invention.

  At least two LED lamps 231 on the circuit board 23 and the curvature change between the high beam translucent part 243 and the low beam translucent part 244 in the lens 24 control the angle and range of projection of the light source. In addition, a bright / dark boundary line is generated, and switching between the high beam and the low beam can be performed. In addition, the cost of installing the shading assembly is saved and the projected light beam is very uniform so that an optimal lighting effect can be achieved. In addition, since the projected light beam does not cause glare, it is possible to ensure optimum safety in use.

  Further, the present invention is used to fix the plurality of heat radiation fins 216 provided on the heat radiation seat 21 of the circuit board 23 by providing the heat radiation device 3 behind the vehicle lamp assembly 2. The high temperature generated by the LED lamp 231 on the circuit board 23 is conducted by the heat radiating fins 216 and radiated. In addition, by operating the electric fan 31 of the heat radiating device 3, the air is sucked by the vent holes 322 of the lid body 32 and is discharged forward by the vent holes 302 of the fixed seat 30. The discharged wind releases heat to the vehicular lamp assembly 2 and lowers the temperature. Alternatively, when the electric fan 31 is operated in the opposite direction, the air is sucked through the vent hole 302 of the fixed seat 30 and discharged through the vent hole 322 of the lid 32. Therefore, since the hot air from the vehicle lamp assembly 2 is sucked and discharged, the heat dissipation and the temperature lowering effect can be achieved in the same manner. Will be increased.

  As described above, the present invention reaches its intended use and effects and is more ideal and practical than the prior art. However, the embodiments described above are merely described in detail for the preferred embodiments of the present invention, and are not intended to limit the scope of the claims of the present invention in any way. All equalizations and modifications within the technical scope of the means for solving the problems of the present invention are included in the claims of the present invention.

1 Vehicle lamp,
10 lamp housing,
100 containment chamber,
101 reflective surface,
11 illuminant,
12 dividers,
120 translucent hole,
13 connecting seat,
14 shading assembly,
140 solenoid valve,
141 shading plate,
15 translucent housing,
16 fixed frame,
17 Light source,
2 vehicle lamp assembly,
20 body,
200 stereotaxic grooves,
201 stereotactic hole,
202 projecting seat,
203 containment chamber,
204 stereotactic convex body,
205 through hole,
206 through hole,
207 screw member,
21 Heat sink,
210 stereotaxic edge,
211 stereotactic convex body,
212 stereotaxic through hole,
213 fixing screw hole,
214 Stereotactic column,
215 stereotactic screw holes,
216 radiating fins,
217 through-hole,
22 connecting sleeve,
220 through-hole,
23 Circuit board,
230 stereotactic holes,
231 LED lamp,
24 lenses,
240 concave chamber,
241 drilling,
242 screw fixing unit,
243 high beam translucent part,
244 Low beam translucent part,
3 heat dissipation device,
30 fixed seat,
300 containment chambers,
301 screw holes,
302 vents,
303 connecting convex bodies,
304 fitting groove,
305 Notch,
306 contact body,
31 Fan,
32 lid,
320 through hole,
321 screw fixing unit,
322 vents,
33 Packing ring.

Claims (3)

A vehicle lamp assembly,
The vehicle lamp assembly includes a main body, a heat radiating seat, a connecting sleeve, a circuit board, and a lens.
The heat dissipating seat is provided on one end face of the main body,
The heat dissipating seat is provided with a plurality of heat dissipating fins on the outer wall surface,
The connection sleeve is provided so as to cover an outer wall surface of the heat dissipating seat,
The circuit board is provided on one end face of the heat dissipating seat and the connection sleeve,
The circuit board is provided with at least two LED lamps,
The lens is provided on the heat dissipating seat and the connecting sleeve,
The lens has a concave chamber formed therein,
The circuit board is located in the concave chamber of the lens;
The lens is provided with a high beam translucent part and a low beam translucent part on the outer wall surface,
At least one LED lamp of the circuit board corresponds correctly to the high beam translucent part of the lens,
At least one LED lamp of the circuit board corresponds correctly to the low beam translucent part of the lens;
A heat dissipating device is provided on the other end face of the main body of the vehicle lamp assembly;
The heat dissipating device is composed of a fixed seat, a fan and a lid,
The fixed seat has a storage chamber formed on one end surface thereof,
The fixed seat has a plurality of vent holes communicating with the storage chamber on the other end surface,
The electric fan is fitted in the storage chamber of the fixed seat,
The lid is provided to cover the fixed seat,
The lid body has a plurality of ventilation holes, and is a heat dissipation device for a vehicular lamp. A projecting seat is formed on the other end surface of the main body in the vehicle lamp assembly,
The projecting seat has a housing chamber formed therein,
The accommodation chamber is provided such that a stereotaxic body is opposed to the wall surface,
A connection convex body is provided on the other end surface of the fixed seat in the heat dissipation device,
The connecting convex body is fitted in the storage chamber of the projecting seat of the main body in the vehicle lamp assembly,
The connecting convex body is provided on the outer wall surface so that the fitting groove is opposed to the connecting convex body,
The fitting groove is formed with a notch communicating with the end of the connecting convex body at the end,
The notch and the fitting groove are L-shaped,
A contact body is provided between the notch and the fitting groove,
2. The vehicle lamp heat dissipating device according to claim 1, wherein a packing ring is fitted into the connecting convex body of the fixed seat in the heat dissipating device. A plurality of screw holes are formed on the end face of the fixed seat in the heat dissipation device,
The lid body is formed with a through hole at a position corresponding to the screw hole in the fixed seat correctly,
The lid body is provided with a screw fixing unit in a through hole,
The heat dissipating device for a vehicular lamp according to claim 1, wherein the screw fixing unit is screwed into a screw hole of the fixing seat.

Images