阅读说明：本技术 一种后视镜 (Rear-view mirror ) 是由 张士军 邴学昕 武林岳 张继国 于 2019-12-09 设计创作，主要内容包括：一种后视镜,属于车辆技术领域,包括大镜片(1)、小镜片(2)、框架(3)、热气装置(4)、连接座(5)、隔膜(6)、空腔(7)、外侧喷气装置(8)、内侧喷气装置(9),其特征在于,后视镜有大镜片(1)和小镜片(2),大镜片(1)与小镜片(2)为凸面镜,小镜片(2)的曲率半径小于大镜片(1)的曲率半径。有大镜片和小镜片,小镜片的曲率半径小于大镜片的曲率半径,本发明的后视镜设有外侧喷气装置和内侧喷气装置,可以对后视镜的镜片喷气,大镜片(1)、小镜片(2)和隔膜(6)形成空腔(7),从热气装置(4)的喷头(401)喷出的热气流不断进入空腔(7),空腔(7)的热量不断积聚,有助于对大镜片(1)和小镜片(2)进行加热除霜雾。(The utility model provides a rearview mirror, belongs to the vehicle technology field, including big lens (1), little lens (2), frame (3), steam device (4), connecting seat (5), diaphragm (6), cavity (7), outside air jet system (8), inboard air jet system (9), its characterized in that, rearview mirror have big lens (1) and little lens (2), and big lens (1) are the convex mirror with little lens (2), and the radius of curvature of little lens (2) is less than the radius of curvature of big lens (1). The rearview mirror is provided with the large mirror and the small mirror, the curvature radius of the small mirror is smaller than that of the large mirror, the rearview mirror is provided with the outer side air injection device and the inner side air injection device, air can be injected to the mirror of the rearview mirror, the large mirror (1), the small mirror (2) and the diaphragm (6) form the cavity (7), hot air sprayed from the spray head (401) of the hot air device (4) continuously enters the cavity (7), heat of the cavity (7) is continuously accumulated, and heating and defrosting fog removal of the large mirror (1) and the small mirror (2) are facilitated.)

1. The utility model provides a rearview mirror, includes big lens (1), small lens (2), frame (3), steam device (4), connecting seat (5), diaphragm (6), cavity (7), outside air jet system (8), inboard air jet system (9), its characterized in that, rearview mirror have big lens (1) and small lens (2), and big lens (1) are convex mirror with small lens (2), and the radius of curvature of small lens (2) is less than the radius of curvature of big lens (1).

2. The rearview mirror according to claim 1, wherein the rearview mirror is provided with an outer air injection device (8) and an inner air injection device (9), the spray nozzle (801) of the outer air injection device (8), the throat (802), the acceleration plate (803), the guide plate (804), and the cavity surrounded by the guide plate (804) is in a horn shape and gradually decreases from outside to inside, the cavity surrounded by the acceleration plate (803) is also in a horn shape and further gradually decreases from outside to inside, the cross-sectional area of the cavity reaching the throat (802) is minimized, the spray nozzle (801) is in a horn shape, the other end of the throat (802) is connected with the horn-shaped small end of the spray nozzle (801), when the automobile runs, external air flow is guided into the acceleration plate (803) after passing through the guide plate (804), and the horn-shaped guide plate (804) is beneficial to more gas introduction, airflow speed of airflow entering the flow plate (804) is improved under the action of the horn-shaped accelerating plate (803), then the airflow enters the throat spray (802) to form high-speed airflow, the high-speed airflow at the throat spray (802) is finally sprayed out by the spray head (801), the high-speed airflow is sprayed to the large lens (1) and the small lens (2) in a cone shape under the action of the horn-shaped spray head (801), rainwater on the large lens (1) and the small lens (2) is washed away, and external rainwater is prevented from dropping on the large lens (1) and the small lens (2) by the cone-shaped airflow sprayed out from the spray head (801).

3. The outer air injection device (8) according to claim 2, wherein the axis (806) of the spray head (801) is at an angle α greater than or equal to 0 degrees and less than 90 degrees from the bottom edge (10) of the rearview mirror, and the installation angle α of the spray head (801) is such that when the air flow is sprayed from the spray head (801) to the large lens (1) and the small lens (2), the air flow has a tendency to spray downwards, which helps to flush rainwater on the large lens (1) and the small lens (2) downwards as soon as possible.

4. The inside air injection device (9) according to claim 2, characterized in that the cavity enclosed by the nozzle (901), the throat (902), the acceleration plate (903), the guide plate (904), the drainage plate (905), the guide plate (904) and the drainage plate (905) of the inside air injection device (9) is in a horn shape, the cavity enclosed by the acceleration plate (903) is in a horn shape, the cavity is further gradually reduced from outside to inside, the cross-sectional area of the cavity reaching the throat (902) is minimum, the nozzle (901) is in a horn shape, the other end of the throat (902) is connected with the horn-shaped small end of the nozzle (901), when a vehicle runs, external air flow is guided into the acceleration plate (903) after passing through the guide plate (904) and the drainage plate (905), the guide plate (904) and the drainage plate (905) form a horn shape, which is beneficial to guide more air, airflow speed of airflow entering the flow plate (904) is improved under the action of the horn-shaped accelerating plate (903), then the airflow enters the throat spray (902) to form high-speed airflow, the high-speed airflow at the throat spray (902) is finally sprayed out by the spray head (901), the high-speed airflow is sprayed to the large lens (1) and the small lens (2) in a cone shape under the action of the horn-shaped spray head (901), rainwater on the large lens (1) and the small lens (2) is washed away, and external rainwater is prevented from dropping on the large lens (1) and the small lens (2) by the cone-shaped airflow sprayed out from the spray head (801).

5. A rear-view mirror according to claim 1, characterized in that the large lens (1), the small lens (2) and the membrane (6) in the rear-view mirror form a cavity (7), the hot air flow from the nozzle (401) of the hot air device (4) continuously enters the cavity (7), and the heat of the cavity (7) continuously accumulates to help heat the large lens (1) and the small lens (2) to remove the frost mist.

6. A rear-view mirror according to claim 1, characterized in that the membrane (6) in the rear-view mirror is an elastic capsule, the membrane (6) has a plurality of small holes (601) near the bottom edge (10) of the rear-view mirror, when the hot air flow entering the cavity (7) increases gradually, the membrane (6) is stretched gradually, the cavity (7) increases gradually to accommodate more hot air, so that the heat in the cavity (7) increases, the defrosting mist effect on the large lens (1) and the small lens (2) increases, when the membrane (6) is stretched, the hole diameter of the small holes (601) also increases, which helps the air in the cavity (7) to be discharged from the small holes (601), and the circulation of the air flow in the cavity (7) is enhanced, thereby enhancing the defrosting mist effect on the rear-view mirror.

7. A rear-view mirror according to claim 1, characterized in that the aperture (601) of the membrane (6) is located close to the bottom edge (10) of the mirror, and that the colder gas in the cavity (7) is located at the aperture (601) of the membrane (6) according to the principle that the density of cold air is greater than the density of hot air, so that the colder gas in the cavity (7) is expelled first and contributes to the heating of the mirror for defrosting mist.

Technical Field

The invention belongs to the technical field of vehicles, and particularly relates to a rearview mirror.

Background

The rearview mirrors are arranged on the left side and the right side of the vehicle, a driver can observe the situation of the lateral rear part of the vehicle body through the rearview mirrors, the application of the rearview mirrors effectively expands the visual field range of the driver, but in the driving process of the vehicle, due to the limitation of the visual field of the rearview mirrors, the driver can not observe passing vehicles frequently, particularly vehicles which are about to overtake on the left side, and traffic accidents are easily caused; in rainy days, raindrops can drip on the rearview mirror, the rearview mirror is blurred, the observation of a driver is influenced, and certain potential safety hazards exist in driving; when the indoor and outdoor temperature difference is relatively large, in the frosted season, fog or even frost exists on the rearview mirror, the imaging effect of the rearview mirror can be seriously influenced, the observation difficulty of a driver is caused, and traffic accidents are easily caused.

Disclosure of Invention

In view of the above problems, the present invention provides a rearview mirror having a wide field of view and having functions of removing rainwater and frost and fog.

In order to achieve the purpose, the technical scheme of the invention is as follows: the invention provides an automobile rearview mirror which comprises a large lens, a small lens, a frame, a hot air device, a connecting seat, a diaphragm, a cavity, an outer side air injection device and an inner side air injection device.

The rear-view mirror is equipped with outside air jet system and inboard air jet system, outside air jet system and inboard air jet system are used for spouting gas to the lens of rear-view mirror, outside air jet system's shower nozzle, spout the larynx, board with higher speed, the cavity shape that guide plate, guide plate enclose is tubaeform, reduces gradually by outer to interior, the cavity shape that the board encloses with higher speed also is tubaeform, further reduce gradually by outer to interior, reach and spout larynx department cavity cross-sectional area and reach the minimum, the shape of shower nozzle is tubaeform, the tip of the tubaeform of shower nozzle is connected to the other end of spouting the larynx. When the automobile runs, external air flow is guided into the accelerating plate after passing through the guide plate, the trumpet-shaped shape of the guide plate is beneficial to guiding more air, the air flow speed of the air flow entering the flow plate is improved under the trumpet-shaped effect of the accelerating plate, then the air flow enters the spray throat to form high-speed air flow, the high-speed air flow at the spray throat is finally sprayed out by the spray head, the high-speed air flow is sprayed to the large lens and the small lens in a cone shape under the trumpet-shaped effect of the spray head, rainwater is washed away, and the air flow sprayed out of the spray head in the cone shape also blocks external rainwater from dropping on the large lens and the small lens. The included angle between the axis of the spray head and the bottom edge of the rearview mirror is an angle which is larger than or equal to 0 degree and smaller than 90 degrees, and the installation angle of the spray head enables the air flow to have a downward spraying tendency when the air flow is sprayed onto the large lens and the small lens from the spray head, so that the rain water can be flushed down as soon as possible.

The cavity shape that inboard air jet system's shower nozzle, throat, board, guide plate, drainage plate, guide plate 904 and drainage plate 905 enclose with higher speed is tubaeform, by reducing gradually to the interior outward, the cavity shape that the board encloses with higher speed also is tubaeform, further reduces gradually by outer to interior, reaches throat department cavity cross-sectional area and reaches the minimum, and the shape of shower nozzle is tubaeform, and the tip of the tubaeform of shower nozzle is connected to the other end of throat. When an automobile runs, external air flow is guided into the accelerating plate after passing through the guide plate and the drainage plate, the guide plate and the drainage plate form a horn shape, so that more air can be guided in, the air flow speed of the air flow entering the flow plate is improved under the action of the horn shape of the accelerating plate, then the air flow enters the jet throat to form high-speed air flow, the air flow is finally sprayed out by the spray head at the high speed of the jet throat, the high-speed air flow is sprayed to the large lens and the small lens in a conical shape under the action of the horn shape of the spray head, rainwater on the large lens and the small lens is washed away, and the air flow sprayed out from the spray head in the conical shape also blocks external rainwater from dropping on the large. The axis of the spray head and the bottom edge of the rearview mirror form an included angle which is larger than or equal to 0 degree and smaller than 90 degrees, and the installation angle of the spray head enables the air flow to have a downward spraying tendency when the air flow is sprayed onto the large lens and the small lens from the spray head, so that the rainwater can be flushed down as soon as possible.

The hot air device is provided with a spray head, a connecting pipe and a hose which are sequentially connected, and the included angle between the tangent plane of the axis of the spray head and the large lens at the intersection of the M point and the axis of the spray head is more than or equal to 0 degree and less than 90 degrees. When the rearview mirror is required to be defrosted, hot air of the air conditioner enters the connecting pipe from the hose and then reaches the spray head to be sprayed out of the spray head, and because the spray head has the installation angle with the included angle, the hot air of the air conditioner can flow along the surface of the large lens, and the large lens is quickly heated to defrosted the fog.

The large lens, the small lens and the diaphragm in the rearview mirror form a cavity, hot air flow sprayed from a spray head of the hot air device continuously enters the cavity, and heat of the cavity is continuously accumulated, so that heating defrosting fog removal of the large lens and the small lens is facilitated.

The diaphragm in the rear-view mirror is elastic capsule, and the diaphragm has a plurality of apertures near rear-view mirror base, and hot gas flow when getting into in the cavity increases gradually, and then the diaphragm is stretched gradually, and the cavity increases gradually and can hold more hot gas, therefore the heat in the cavity increases, improves the defrosting fog effect of big lens and little lens, and when the diaphragm was stretched, the aperture of aperture also increased, and this helps the gas in the cavity to discharge from the aperture, has strengthened the circulation of air current in the cavity to the defrosting fog effect of rear-view mirror has been strengthened. The diaphragm is provided with a small hole close to the bottom edge of the rearview mirror, and according to the principle that the density of cold air is greater than that of hot air, the cold air in the cavity is located in the small hole of the diaphragm, so that the cold air in the cavity is discharged firstly, and the heating and defrosting of the rearview mirror are facilitated.

The beneficial effects of the invention are: the vehicle-mounted vision-monitoring system is provided with the large lens and the small lens, and the curvature radius of the small lens is smaller than that of the large lens, so that the large lens and the small lens have different vision ranges, the vehicle and the surrounding environment can be observed more widely, vision blind areas are reduced, and driving safety is improved; the rearview mirror is provided with the outer side air injection device and the inner side air injection device, air can be injected to the lens of the rearview mirror, and due to the special installation angle of the spray head, when the air flow is sprayed onto the large lens and the small lens from the spray head, the air flow has a downward spraying tendency, so that rainwater on the lens can be flushed away downwards as soon as possible; the hot air device is internally provided with a cavity formed by a large lens, a small lens and a diaphragm, the diaphragm has elasticity, when hot air flow entering the cavity is gradually increased, the diaphragm is gradually stretched, the cavity is gradually enlarged to accommodate more hot air, so that the heat in the cavity is increased, and the defrosting fog effect on the large lens and the small lens is improved; the cavity is gradually enlarged to accommodate more hot gas, so that the heat in the cavity is increased, and the defrosting fog effect on the large lens and the small lens is improved; the diaphragm is provided with a plurality of small holes close to the bottom edge of the rearview mirror, when the diaphragm is stretched, the hole diameters of the small holes are increased, gas in the cavity is facilitated to be discharged from the small holes, circulation of air flow in the cavity is enhanced, and accordingly the defrosting fog effect of the rearview mirror is enhanced.

Drawings

FIG. 1 is a schematic view of a rearview mirror of the present invention

FIG. 2 is a sectional view taken along line A-A of FIG. 1

FIG. 3 is a sectional view taken along line B-B of FIG. 1

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1

FIG. 5 is an enlarged view of a portion of FIG. 1 at D

FIG. 6 schematic view of an outer jet unit

FIG. 7 schematic view of an inner side gas injection device

FIG. 8 is an enlarged view of a portion E of FIG. 4 in section

In the figure, 1, a large lens, 2, a small lens, 3, a frame, 4, a hot air device, 5, a connecting seat, 6, a diaphragm, 7, a cavity, 8, an outer air injection device, 9, an inner air injection device, 10, a bottom edge of a rearview mirror, 401, a nozzle, 402, a connecting pipe, 403, a hose, 404, a nozzle axis, 601, a small hole, 801, a nozzle, 802, a throat, 803, an accelerating plate, 804, a guide plate, 806, a nozzle axis, 901, a nozzle, 902, a throat, 903, an accelerating plate, 904, a guide plate, 905, a drainage plate, 906 and a nozzle axis.

Detailed Description

The invention is described in further detail below with reference to the figures and specific embodiments.

The invention provides an automobile rearview mirror which comprises a large lens 1, a small lens 2, a frame 3, a hot air device 4, a connecting seat 5, a diaphragm 6, a cavity 7, an outer side air injection device 8 and an inner side air injection device 9, and is characterized in that the rearview mirror is provided with the large lens 1 and the small lens 2 which are convex mirrors, the curvature radius of the small lens 2 is smaller than that of the large lens 1, so that the large lens 1 and the small lens 2 have different visual field ranges and can observe the vehicle and the surrounding environment wider than the surrounding environment, the visual field blind area is reduced, the driving safety is improved, the rearview mirror is provided with the outer side air injection device 8 and the inner side air injection device 9, a nozzle 801, a throat 802, an accelerating plate 803, a flow guide plate 804 and a flow guide plate 804 are horn-shaped, the cavity shape surrounded by the accelerating plate 803 is gradually reduced from outside to inside, the cross-sectional area is further reduced from outside to inside, the cavity cross-sectional area reaches the throat 802 to be the minimum, the shape of the nozzle is in a horn shape, the nozzle 802 is in a horn shape, the horn-shaped, the nozzle 802 is connected with the horn-shaped nozzle 801, the horn-shaped nozzle 802, the nozzle 802 is connected with the small nozzle 802, the horn-shaped nozzle 802, the small nozzle 802 is favorable for injecting rainwater flow of the small lens 2 and favorable for injecting the high-shaped nozzle 802, when the high-speed air injection nozzle 802 and the small lens 2, the high-speed air injection nozzle 802 and the small lens 2, the small nozzle 802, the small lens 2, the nozzle can be injected into the small nozzle 802, the nozzle can be injected into the small nozzle 802, the nozzle is used for injecting the nozzle of the small lens 2, the nozzle of the horn-shaped nozzle of the.

When the automobile runs, external airflow passes through the flow guide plate 904 and the flow guide plate 905 and is guided into the acceleration plate 903, the flow guide plate 904 and the flow guide plate 905 to form a horn shape, so that more air is favorably introduced, the airflow entering the flow guide plate 904 is improved in airflow speed under the action of the horn shape of the acceleration plate 903, then enters the throat 902 to form high-speed airflow, the high-speed airflow is finally sprayed out from the flow guide plate 904 by the spray nozzle 901, the high-speed airflow is sprayed towards large lenses 1 and small lenses 2 under the action of the horn shape of the spray nozzle 901, the large-speed airflow is sprayed out from the spray nozzle 904 to form small airflow angles 351 and 801, the rainwater sprayed out from the spray nozzle 801 to form small airflow angles 352, and the rainwater sprayed out from the spray nozzle 351 to small airflow is favorably larger than the rainwater sprayed out from the spray nozzle 801 to the small airflow, so that the rainwater is more easily blown out from the large airflow nozzle 801 to the small airflow, and the rainwater is more easily blown out from the small airflow 801 to the small airflow, and the rainwater is more easily blown out from the rain water jet nozzle 352 when the rain drops are more easily dropped from the rain drops, and the rain drops, the rain drops are more rain drops, the rain drops, and the rain drops, the rain drops are more.

The hot air device 4 is provided with a spray head 401, a connecting pipe 402 and a hose 403, the spray head 401, the connecting pipe 402 and the hose 403 are sequentially connected, a spray head axis 404 is intersected with the large lens 1 at a point M, an included angle β between the spray head axis 404 and a tangent plane of the large lens 1 at the point M is larger than or equal to 0 degrees and smaller than 90 degrees, when frost mist removal is needed on the rearview mirror, hot air of an air conditioner enters the connecting pipe 402 from the hose 403, then reaches the spray head 401 and is sprayed out by the spray head 401, because the spray head 401 has an installation angle of β, the hot air of the air conditioner can flow along the surface of the large lens 1, and the large lens 1 is heated and defr.

The large lens 1, the small lens 2 and the diaphragm 6 in the rearview mirror form a cavity 7, hot air flow sprayed from the spray head 401 of the hot air device 4 continuously enters the cavity 7, and heat of the cavity 7 is continuously accumulated, so that heating defrosting fog of the large lens 1 and the small lens 2 is facilitated.

The diaphragm 6 in the rearview mirror is an elastic capsule, the plurality of small holes 601 are formed in the position, close to the bottom edge 10 of the rearview mirror, of the diaphragm 6, when hot air flow entering the cavity 7 is gradually increased, the diaphragm 6 is gradually stretched, the cavity 7 is gradually enlarged to contain more hot air, therefore, heat in the cavity 7 is increased, defrosting mist effects of the large lens 1 and the small lens 2 are improved, when the diaphragm 6 is stretched, the hole diameter of the small holes 601 is also increased, the gas in the cavity 7 is favorably discharged from the small holes 601, circulation of air flow in the cavity 7 is enhanced, and the defrosting mist effects of the rearview mirror are enhanced. The small holes 601 of the diaphragm 6 are positioned close to the bottom edge 10 of the rearview mirror, and according to the principle that the density of cold air is greater than that of hot air, the colder gas in the cavity 7 is positioned at the small holes 601 of the diaphragm 6, so that the colder gas in the cavity 7 is discharged firstly, and the heating and defrosting fog of the rearview mirror are facilitated.

Finally, it should also be noted that the above example is only one specific embodiment of the present invention. It is obvious that the invention is not limited solely to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.