Automobile headlamp assembly and centrifugal fan for radiating automobile headlamp assembly
Technical Field
The utility model belongs to the technical field of auto-parts technique and specifically relates to a car headlight assembly and be used for giving car headlight assembly radiating centrifugal fan thereof is related to.
Background
When the automobile headlamp assembly works, light emitted by a light source in the headlamp assembly generates a large amount of illumination radiation heat, just like the sunlight irradiates the ground to increase the atmospheric temperature, the illumination radiation heat is accumulated in a lamp cavity in the headlamp assembly, and the air temperature in the lamp cavity in the headlamp assembly is increased, so that the working temperature of each part (such as a bulb, a lampshade, a reflector cup and the like) in the lamp cavity in the headlamp assembly is increased, each part in the lamp cavity in the headlamp assembly works at a high temperature for a long time, the aging is fast, the service life of each part in the lamp cavity in the headlamp assembly is seriously influenced, the air temperature in the lamp cavity in the headlamp assembly is high, the fog is easy to form in the lamp cavity of the headlamp assembly, the normal work of the headlamp assembly is seriously influenced, and the great adverse factor is brought to the driving safety.
In the prior art, two kinds of headlight bulbs of high beam bulb and passing light bulb in the car headlight assembly, buckle connection through the collar is generally all installed in the mounting hole on the shell of headlight assembly, convenient dismantlement is changed, but high beam bulb and passing light bulb are not whole all to insert in the mounting hole, generally only preceding luminous part alternates past from the mounting hole, the latter half (including power cord etc.) of high beam bulb and passing light bulb does not insert the mounting hole, still stay outside the mounting hole. Thus, in order to cover the rear half portions of the high beam bulb and the low beam bulb exposed to the outside in the prior art, a protruding tube (hereinafter, referred to as a protruding tube) is further disposed on the outer wall surface of the housing of the headlamp assembly, the portions of the high beam bulb and the low beam bulb exposed to the outside are hidden in a tube cavity of the protruding tube, the portions of the high beam bulb and the low beam bulb exposed to the outside are covered with the protruding tube, and then an outer tube opening of the protruding tube is covered with a dust cap from the outside, so that dust, water and the like are prevented from entering the headlamp assembly. Thus, a large lamp chamber located at the front is formed in the headlamp assembly, and the lamp chamber includes light emitting points of various lamps such as a high beam lamp, a low beam lamp and a steering lamp; the lamp assembly also comprises a plurality of small bulge tube cavities formed on the outer wall surface of the shell, and the small bulge tube cavities are used for wrapping the parts of various bulbs exposed out of the lamp cavity with the cover.
Therefore, how to radiate the lamp cavity in the automobile headlamp assembly and reduce the air temperature in the lamp cavity so that each part in the lamp cavity in the headlamp assembly works at a more appropriate temperature for a long time, the aging speed is reduced, the service life of each part in the lamp cavity in the headlamp assembly is prolonged, the fogging in the lamp cavity of the headlamp assembly is avoided, the lighting effect of the automobile headlamp assembly is improved, and the driving safety is improved is a technical problem which needs to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be used for giving the radiating centrifugal fan of car headlight assembly. Another object of the utility model is to provide an automobile headlamp assembly including above-mentioned centrifugal fan.
For solving the above technical problem, the utility model provides a technical scheme does:
a centrifugal fan for radiating an automobile headlamp assembly comprises a motor, a centrifugal impeller and a fan shell;
the motor and the centrifugal impeller are arranged in the fan shell, and the motor is in transmission connection with the centrifugal impeller so as to be used for driving the centrifugal impeller to rotate by the motor to generate wind;
an air inlet channel for air inlet and an air outlet channel for air outlet are arranged in the centrifugal fan, and an air inlet for air inlet and an air outlet for air outlet are arranged on the fan shell;
and a primary baffle plate used for preventing outside air, water drops and dust from penetrating through the centrifugal fan to enter the interior of the automobile headlamp assembly is arranged in the air outlet channel.
Preferably, the primary baffle is arranged on the inner wall surface of the fan shell;
the centrifugal impeller is located above the air outlet channel, the air outlet channel is divided into an upstream air outlet channel and a downstream air outlet channel by the primary baffle, a through hole is formed in the bottom of the primary baffle so that the bottom of the upstream air outlet channel is communicated with the bottom of the downstream air outlet channel, the air outlet is formed in a fan shell at the downstream air outlet channel, and the air outlet faces downwards so that air outlet of the centrifugal fan firstly enters the upstream air outlet channel from top to bottom and then enters the downstream air outlet channel from bottom to top and is finally discharged from the air outlet.
Preferably, a plurality of secondary baffles for preventing outside air, water drops and dust from passing through the centrifugal fan and entering the interior of the automobile headlamp assembly are arranged in the upstream air outlet channel, the secondary baffles are arranged on the inner wall surface of the fan shell, the plurality of secondary baffles are arranged in the upstream air outlet channel in a mutually staggered manner, the length direction of each secondary baffle is in the direction of the air outlet flowing direction in the upstream air outlet channel, and the length direction of each secondary baffle is in the direction of the outside air, the water drops and the dust flowing back to the upstream air outlet channel.
Preferably, the centrifugal fan further comprises a temperature sensor for detecting the temperature of air in the automobile headlamp assembly and a controller for controlling the centrifugal fan to be turned on or turned off;
the temperature sensor extends out of an air inlet of the centrifugal fan, is positioned outside the air inlet and is positioned on the inner side of the air inlet, and is used for enabling the temperature sensor to extend into the automobile headlamp assembly;
the controller is arranged in the fan shell and arranged on the inner wall surface of the fan shell;
the temperature sensor is electrically connected with the controller, the controller is electrically connected with the motor, the temperature sensor is used for transmitting an electric signal of the detected air temperature in the automobile headlamp assembly to the controller, and then the controller outputs a signal to control the motor to be started or shut down.
Preferably, the fan shell comprises an inner shell and an outer shell, and the inner shell and the outer shell are connected and spliced into a complete fan shell through bolts;
the air inlet is arranged on the inner side shell.
Preferably, the centrifugal fan further comprises at least three buckle spring pieces for fixing the centrifugal fan at the outer pipe opening of the protruding pipe on the automobile headlamp assembly in a buckle way;
the buckle spring pieces are inserted into the air inlet of the centrifugal fan, all the buckle spring pieces are uniformly distributed along the circumferential direction of the air inlet, the outer ends of the buckle spring pieces are fixed on the inner side shell, and the inner ends of the buckle spring pieces are exposed out of the air inlet and are positioned on the inner side of the air inlet;
each buckle spring piece is provided with a radial bulge, and the outer diameter of the radial bulge on the buckle spring piece is larger than the inner diameter of the bulge tube so that the inner wall surface of the bulge tube is squeezed and clamped by the radial spring restoring force of the buckle spring piece after the buckle spring piece is inserted into the bulge tube.
Preferably, the centrifugal fan further comprises a sealing gasket for sealing;
the sealing washer is arranged at an air inlet of the centrifugal fan.
Preferably, an electric wire for supplying power to the motor is protruded from the air inlet for inserting the electric wire into the boss tube.
An automobile headlamp assembly comprises a lampshade positioned on the front side, a shell positioned on the back side, a reflecting cup used for reflecting light and a headlamp bulb used for emitting light, wherein the lampshade and the shell are connected in a sealing mode to enclose a lamp cavity in the automobile headlamp assembly;
the centrifugal fan is arranged at the outer pipe opening of the protruding pipe, the outer pipe opening of the protruding pipe is covered by the centrifugal fan, and the air inlet of the centrifugal fan is communicated with the pipe cavity of the protruding pipe.
The utility model provides a centrifugal fan used for radiating an automobile headlamp assembly, which comprises a motor, a centrifugal impeller, a fan shell and a primary baffle plate; the application also provides an automobile headlamp assembly, wherein the centrifugal fan is arranged at the outer pipe opening of the protruding pipe, the outer pipe opening of the protruding pipe is covered by the centrifugal fan, and the air inlet of the centrifugal fan is communicated with the pipe cavity of the protruding pipe;
because the air outlet of the centrifugal fan is communicated with the outside atmosphere, and the tube cavity of the bulge tube is communicated with the lamp cavity, hot air in the lamp cavity in the automobile headlamp assembly is discharged to the outside atmosphere by the centrifugal fan, active heat discharge and heat dissipation are carried out, so that the temperature of the lamp cavity in the headlamp assembly is reduced, the working temperature of each part in the lamp cavity in the headlamp assembly is reduced, the service life of each part in the lamp cavity in the headlamp assembly is prolonged, the fogging of the lamp cavity is reduced or even avoided, and the lighting effect and the driving safety are improved;
the first-stage baffle is arranged in the air outlet channel, and the first-stage baffle is used for preventing outside air, water drops and dust from penetrating through the centrifugal fan and entering the interior of the automobile headlamp assembly, namely only hot air in the automobile headlamp assembly is allowed to be discharged outwards, and outside air, water drops and dust are not allowed to penetrate through the centrifugal fan and enter the interior of the automobile headlamp assembly, namely only the outside air, the water drops and the dust cannot enter the interior of the automobile headlamp assembly, so that the problems that the outside air, the water drops and the dust enter the interior of the automobile headlamp assembly, the interior of the automobile headlamp assembly is polluted and the like are solved, and therefore the lighting effect and the driving safety of the automobile headlamp.
Drawings
Fig. 1 is a schematic perspective view of a centrifugal fan for dissipating heat of an automobile headlamp assembly according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of FIG. 1 at another angle;
FIG. 3 is a schematic perspective view of FIG. 1 at yet another angle;
FIG. 4 is a 0.5-fold reduction of the exploded view of FIG. 1;
FIG. 5 is a schematic perspective view of the device of FIG. 1 with the inner shell removed;
FIG. 6 is a front view of FIG. 5 (the arrows in FIG. 6 represent the flow paths of the outlet air when the centrifugal fan is working normally to discharge the outlet air);
FIG. 7 is a front view of FIG. 5 (arrows in FIG. 7 represent flow trajectories of the outside air, water droplets and dust into the centrifugal fan, indicating that reverse flow of the outside air, water droplets and dust through the centrifugal fan is severely blocked, indicating that the outside air, water droplets and dust hardly flow back through the centrifugal fan into the interior of the headlamp assembly of the automobile);
in the figure: 1 centrifugal impeller, 2 blower casing, 201 inside casing, 202 outside casing;
301 air inlet and 302 air outlet;
4 primary baffles, 5 secondary baffles, 601 upstream air outlet channels and 602 downstream air outlet channels;
7, a temperature sensor and 8 a controller;
9 snap spring, 10 seal washer, 11 wire.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "axial," "radial," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in actual practice, merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "inside" and "outside" indicate orientations or positional relationships that are based on the orientations or positional relationships shown in practical applications, that the orientations or positions inside the headlamp assembly are "inside" and the orientations or positions outside the headlamp assembly are "outside", so that the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention.
Referring to fig. 1 to 7, in the drawings: a centrifugal impeller 1, a fan housing 2, an inner housing 201, an outer housing 202; an air inlet 301 and an air outlet 302; the air conditioner comprises a primary baffle 4, a secondary baffle 5, an upstream air outlet channel 601 and a downstream air outlet channel 602; a temperature sensor 7, a controller 8; snap spring tabs 9, a sealing washer 10 and an electric wire 11.
The application provides a centrifugal fan for radiating an automobile headlamp assembly, which comprises a motor, a centrifugal impeller 1 and a fan shell 2;
the motor and the centrifugal impeller 1 are arranged in the fan shell 2, the motor 1 is arranged on the inner wall surface of the fan shell 2, and the motor is in transmission connection with the centrifugal impeller 1 so as to be used for driving the centrifugal impeller 1 to rotate by the motor to generate wind;
an air inlet channel for air inlet and an air outlet channel for air outlet are arranged in the centrifugal fan, and an air inlet 301 for air inlet and an air outlet 302 for air outlet are arranged on the fan shell 2;
and a primary baffle 4 for preventing outside air, water drops and dust from passing through the centrifugal fan and entering the interior of the automobile headlamp assembly is arranged in the air outlet channel.
In the present application, a centrifugal impeller is also referred to as a centrifugal wind wheel; preferably, the centrifugal impeller is an outer rotor centrifugal impeller.
In one embodiment of the present application, the primary baffle 4 is provided on an inner wall surface of the blower housing 2;
the centrifugal impeller 1 is located above the air outlet channel, the primary baffle 4 divides the air outlet channel into an upstream air outlet channel 601 and a downstream air outlet channel 602, a through hole is formed in the bottom of the primary baffle 4 so that the bottom of the upstream air outlet channel 601 is communicated with the bottom of the downstream air outlet channel 602, the air outlet 302 is arranged on the fan housing 2 at the downstream air outlet channel, and the air outlet 302 faces downward so that the air outlet of the centrifugal fan firstly enters the upstream air outlet channel 601 from top to bottom and then enters the downstream air outlet channel 602 from bottom to top, and finally is discharged from the air outlet 302.
In an embodiment of the present application, a plurality of secondary baffles 5 for blocking outside air, water droplets and dust from passing through the centrifugal fan into the interior of the headlamp assembly are disposed in the upstream air outlet channel 601, the secondary baffles 5 are disposed on the inner wall surface of the fan housing 2, the secondary baffles 5 are disposed in the upstream air outlet channel 601 in a staggered manner, the length direction of the secondary baffles 5 and the air outlet flowing direction in the upstream air outlet channel 601 are in a forward relationship, and the length direction of the secondary baffles 5 and the direction in which outside air, water droplets and dust flow backwards into the upstream air outlet channel 601 are in a reverse relationship.
In an embodiment of the present application, the blower housing 2 includes an inner housing 201 and an outer housing 202, and the inner housing 201 and the outer housing 202 are spliced into the complete blower housing 2 by a bolt connection;
the air inlet 301 is disposed on the inner housing 201.
In the present application, it is preferable that the primary baffle 4 and the secondary baffle 5 are both provided on an inner wall surface of the outer casing 202.
In one embodiment of the present application, the centrifugal fan further comprises a temperature sensor 7 for detecting the air temperature in the automobile headlamp assembly and a controller 8 for controlling the centrifugal fan to be turned on or off;
the temperature sensor 7 extends out of an air inlet 301 of the centrifugal fan, and the temperature sensor is located outside the air inlet and inside the air inlet, so that the temperature sensor 7 extends into the interior of the automobile headlamp assembly;
the controller 8 is arranged in the fan casing 2 and on the inner wall surface of the fan casing;
the temperature sensor 7 is electrically connected with the controller 8, and the controller 8 is electrically connected with the motor, so that the temperature sensor 7 transmits an electric signal of the detected air temperature in the automobile headlamp assembly to the controller 8, and then the controller 8 outputs a signal to control the motor to be turned on or turned off.
In one embodiment of the present application, the centrifugal fan further comprises at least three snap spring tabs 9 for snap fixing the centrifugal fan at an outer nozzle of a protruding tube on the headlamp assembly;
the buckling spring pieces 9 are inserted into the air inlet 301 of the centrifugal fan, all the buckling spring pieces 9 are uniformly distributed along the circumferential direction of the air inlet 301, the outer ends of the buckling spring pieces 9 are fixed on the inner side shell 201, and the inner ends of the buckling spring pieces 9 are exposed out of the air inlet 301 and are positioned on the inner side of the air inlet 301;
each buckle spring piece 9 is provided with a radial bulge, and the outer diameter of the radial bulge on the buckle spring piece 9 is larger than the inner diameter of the bulge tube so that the buckle spring piece 9 is inserted into the bulge tube and then extrudes and clamps the inner wall surface of the bulge tube by virtue of the radial spring restoring force of the buckle spring piece 9.
In one embodiment of the present application, the centrifugal fan further comprises a sealing gasket 10 for sealing;
the sealing gasket 10 is arranged at the air inlet 301 of the centrifugal fan.
In one embodiment of the present application, an electric wire 11 for supplying power to the motor is protruded from the air inlet 301 for inserting the electric wire 11 into the boss tube.
The application also provides an automobile headlamp assembly, which comprises a lampshade positioned on the front side, a shell positioned on the back side, a reflecting cup used for reflecting light and a headlamp bulb used for emitting light, wherein the lampshade and the shell are in sealed connection to enclose a lamp cavity in the automobile headlamp assembly, a protruding pipe is arranged on the outer wall surface of the shell, the part of the headlamp bulb exposed out of the lamp cavity is concealed in a pipe cavity of the protruding pipe, the protruding pipe covers and wraps the part of the headlamp bulb exposed out of the lamp cavity, and the automobile headlamp assembly further comprises any one of the centrifugal fans used for radiating the automobile headlamp assembly;
the centrifugal fan is arranged at the outer pipe opening of the protruding pipe, the outer pipe opening of the protruding pipe is covered by the centrifugal fan, and the air inlet 301 of the centrifugal fan is communicated with the pipe cavity of the protruding pipe;
the temperature sensor 7 is positioned in the protruding tube and used for detecting the temperature of air in the protruding tube;
the electrical wires 11 are inserted into the protruding tubes for electrical connection with a power supply socket in the protruding tubes.
The utility model provides a centrifugal fan for radiating an automobile headlamp assembly, which comprises a motor, a centrifugal impeller 1, a fan shell 2 and a primary baffle 4; the application also provides an automobile headlamp assembly, wherein the centrifugal fan is arranged at the outer pipe opening of the protruding pipe, the outer pipe opening of the protruding pipe is covered by the centrifugal fan, and the air inlet 301 of the centrifugal fan is communicated with the pipe cavity of the protruding pipe;
because the air outlet 302 of the centrifugal fan is communicated with the outside atmosphere and the tube cavity of the bulge tube is communicated with the lamp cavity, hot air in the lamp cavity in the automobile headlamp assembly is discharged to the outside atmosphere by the centrifugal fan to actively discharge hot air for heat dissipation, so that the temperature of the lamp cavity in the headlamp assembly is reduced, the working temperature of each part in the lamp cavity in the headlamp assembly is reduced, the service life of each part in the lamp cavity in the headlamp assembly is prolonged, the fogging of the lamp cavity is reduced or even avoided, and the lighting effect and the driving safety are improved;
the primary baffle 4 is arranged in the air outlet channel, and the primary baffle 4 is used for preventing outside air, water drops and dust from penetrating through the centrifugal fan to enter the interior of the automobile headlamp assembly, namely only hot air in the automobile headlamp assembly is allowed to be discharged outwards, and outside air, water drops and dust are not allowed to penetrate through the centrifugal fan to enter the interior of the automobile headlamp assembly, namely the outside air, the water drops and the dust are only not discharged, so that the problems that the outside air, the water drops and the dust enter the interior of the automobile headlamp assembly to pollute the interior of the automobile headlamp assembly and the like are solved, and therefore the lighting effect and the driving safety of the automobile headlamp assembly are guaranteed.
The method and the device not described in detail in the present invention are prior art and will not be described in detail.
The principles and embodiments of the present invention have been explained herein using specific embodiments, which are merely used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.