CN219382415U - Defrosting and demisting system and automobile - Google Patents

Abstract

The application relates to a defrosting and demisting system and an automobile, which comprise a wiper assembly and an in-automobile defrosting and demisting air port, wherein an air duct is arranged on the wiper assembly, an air outlet of the air duct is positioned on a wiper of the wiper assembly, the air outlet faces a front windshield, and an air inlet of the air duct and the in-automobile defrosting and demisting air port are communicated with the defrosting and demisting port of an HVAC box body; an air inlet is formed in the HVAC box body, and a fan, a refrigerating assembly and a heating assembly are arranged in the HVAC box body; in cold seasons, the air blower blows hot air to the front windshield through the air outlet and the defrosting fog outlet in the vehicle, internal and external heating is carried out to remove frost, the defrosting speed is high, the rubber strips of the windscreen wiper can be softened, the scraping effect is improved, and the scraping noise is reduced; in wet cooling season, the air conditioner is refrigerated by the refrigerating assembly, the fan blows cold air to the front windshield through the air outlet and the defrosting fog outlet in the vehicle, internal and external heating defogging is carried out, and meanwhile, the comfort in the vehicle is improved through heating.

Description

Defrosting and demisting system and automobile

Technical Field

The utility model relates to the technical field of automobiles, in particular to a defrosting and demisting system and an automobile.

Background

When the automobile is placed outdoors for a long time in winter, snow can be accumulated on the outer surface of the automobile glass, even ice is formed, and when the temperature of the engine such as an engine is required to be started, the ice on the outer window glass is removed through a defrosting air port in the automobile by utilizing the rest heat. However, the defogging time is long because of the large temperature difference between the inside and outside of the front window glass.

For defrosting or deicing, one prior art solution is to embed electric heating wires in the front glass for deicing. The deicing mode needs to pre-embed the electric heating wires in the glass interlayer, the process is complex, and the arrangement of the electric heating wires in the front window glass can influence the sight.

In order to defrost or deicing, another scheme in the prior art is a method for internally arranging a resistance wire in the windscreen wiper, and the defrosting effect is realized by radiating heat from a heat conducting hole to the surface of the front window glass through the heating of the resistance wire. The resistance wire has large heating value and high surface temperature, can influence the performance of the front window glass or the windscreen wiper rubber strip, and can accelerate the ageing of the rubber strip.

Meanwhile, due to the fact that cold and hot air are mixed, when the humidity is high, the phenomenon of fog on the surface of glass commonly exists on an automobile. At this time, it is common practice to turn on an air conditioner on an automobile to perform cooling defogging. However, in wet seasons, the comfort in the vehicle is affected by refrigerating defogging.

Disclosure of Invention

The utility model aims to overcome the defects, and provides a defrosting and demisting system and an automobile, which can be used for heating and defrosting inside and outside in cold seasons and heating and demisting in wet cold seasons.

The first technical scheme adopted for solving the technical problems is that the defrosting and demisting system comprises a wiper assembly and a defrosting and demisting port in a vehicle;

the air inlet of the air channel and the defrosting fog opening in the vehicle are communicated with the defrosting fog opening of the HVAC box body;

an air inlet is formed in the HVAC box body, and a fan, a refrigerating assembly and a heating assembly are arranged in the HVAC box body.

Further, an air valve is arranged on the air duct.

Further, a face blowing opening and a foot blowing opening are formed in the HVAC box body, the face blowing opening is communicated with an upper air blowing opening in the automobile, and the foot blowing opening is communicated with a lower air blowing opening in the automobile.

Further, the face blowing opening, the foot blowing opening and the defrosting fog opening are positioned on the same side.

Further, air doors are arranged in the face blowing opening, the foot blowing opening, the defrosting fog opening and the air inlet.

Further, the air duct is a pipeline, a passage communicated with the air duct is arranged in the windscreen wiper, and the air outlet is communicated with the passage.

Further, a plurality of air outlets are arranged on the windscreen wiper at intervals along the length direction of the windscreen wiper.

Further, the refrigeration component is an evaporator.

Further, the heating component is a heat pump or a PTC heater.

The second technical scheme adopted by the utility model for solving the technical problems is to provide an automobile engine, which comprises an air conditioning system and the defrosting and demisting system, wherein an evaporator of the air conditioning system is positioned in an HVAC box body.

Compared with the prior art, the utility model has the following beneficial effects:

in cold seasons, the air blower blows hot air to the front windshield through the air outlet and the defrosting fog outlet in the vehicle, internal and external heating is carried out to remove frost, the defrosting speed is high, the rubber strips of the windscreen wiper can be softened, the scraping effect is improved, and the scraping noise is reduced;

in wet cooling season, the air conditioner is refrigerated by the refrigerating assembly, the fan blows cold air to the front windshield through the air outlet and the defrosting fog outlet in the vehicle, internal and external heating defogging is carried out, and meanwhile, the comfort in the vehicle is improved through heating.

Drawings

The patent of the utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a defrost defogging system.

Fig. 2 is a schematic diagram of a fitting structure of a wiper blade and a defrosting mist outlet in a vehicle.

FIG. 3 is a schematic diagram of a combination of a defrost defogging system and an air conditioning system.

In the figure:

1-an air outlet; 2-defrosting fog vents in the vehicle; 3-an air valve; 4-an air duct; 5-defrosting fog mouth; 6-an air inlet; 7-a fan; 8-a refrigeration assembly; 9-a heating assembly; 10-HVAC case; 11-a face blowing port; 12-foot blowing openings; 13-damper; 14-wiper assembly; 15-front windshield; a 16-expansion valve; 17-a condenser; 18-a compressor; 19-a gas-liquid separator; 20-four-way valve.

Detailed Description

The preferred embodiments of the present utility model will be described in more detail below, however, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

When the automobile is placed outdoors for a long time in winter, snow can be accumulated on the outer surface of the automobile glass, even ice is formed, at the moment, defrosting or deicing is carried out, after the water temperature of an engine and the like is required to be started, the rest heat can be utilized to remove the frost on the outer window glass through a defrosting air port in the automobile, and the defogging time is long due to the fact that the temperature difference between the inner side and the outer side of the front window glass is large.

Meanwhile, due to the fact that cold and hot air are mixed, when the humidity is high, the phenomenon of fog on the surface of glass commonly exists on an automobile. At this time, it is common practice to turn on an air conditioner on an automobile to perform cooling defogging. However, in wet seasons, the comfort in the vehicle is affected by refrigerating defogging.

Example 1:

in view of the above, embodiment 1 provides a defrosting and demisting system capable of performing internal and external heating to remove frost in a cold season and performing heating and demisting in a wet cold season.

1-3, a defrost and defog system includes a wiper assembly 14, an in-vehicle defrost fog vent 2, the wiper assembly 14 being located outside a front windshield 15, the in-vehicle defrost fog vent being located inside the front windshield 15;

the air duct 4 is arranged on the windscreen wiper assembly 14, an air outlet 1 of the air duct 4 is positioned on the windscreen wiper of the windscreen wiper assembly 14, the air outlet 1 faces the front windshield 15, and an air inlet 6 of the air duct 4 and an in-vehicle defrosting fog outlet 2 are communicated with a defrosting fog outlet 5 of the HVAC box 10;

be provided with the air inlet 6 on the HVAC box 10, be provided with fan 7, refrigeration subassembly 8, heating element 9 in the HVAC box 10, in practical application, fan 7, refrigeration subassembly 8, heating element 9 can set gradually in the HVAC box 10, fan 7 is located air inlet 6 side, and the air inlet end of fan 7 is towards air inlet 6, heating element 9 is located except that frost fog mouth 5 side.

When the defrosting and defogging device is used, the refrigerating assembly 8 is started to refrigerate or the heating assembly 9 is started to heat, the fan 7 is started to blow cold air or hot air to the front windshield 15 through the air outlet 1 and the defrosting and defogging air inlet 2 in the vehicle, so that frost or defogging is carried out.

When the automobile is placed in a cold season for the whole night, rain, snow and frost are attached to the front windshield 15 of the automobile, at the moment, the automobile is started, the heating assembly 9 and the fan 7 are started to blow hot air from the air outlet 1 and the defrosting fog outlet 2 in the automobile to the front windshield 15, the frost on the outer surface of the front windshield can be gradually melted, and the mode of outputting the hot air inside and outside can improve defrosting speed, so that waiting time of an automobile owner is shortened. Meanwhile, the hot air output by the air outlet 1 through the air duct 4 can soften the rubber strip of the wiper, at the moment, the scraping effect of the wiper after the wiper is started can be greatly enhanced, and the scraping noise can be greatly reduced.

When the automobile is driven out from the low-temperature environment, the front windshield 15 is very easy to fog due to the fact that the temperature of the inner surface of the front windshield is low, the temperature of the outer surface is high, and the temperature difference is large. At the moment, the refrigerating and heating assembly and the fan 7 are started to blow cold air from the air outlet 1 and the defrosting fog outlet 2 in the automobile to the front windshield 15, and the cold air is simultaneously output from the inside to the outside, so that the temperature difference between the inside and the outside of the front windshield 15 is reduced, the condition that the front windshield 15 is frequently fogged is relieved, the defogging of the front windshield 15 is realized, and meanwhile, the defogging effect is further improved by matching with the scraping of the windscreen wiper; at this time, the comfort is reduced due to the blowing of cold air in the vehicle, but the driving safety is improved at this time.

In a wet and cool season, the inner surface of the front windshield 15 will quickly fog due to the difference in temperature and humidity between the inside and outside when a person just enters the vehicle. At this time, the air conditioner is started to heat, meanwhile, the heating assembly 9 and the fan 7 are started to blow hot air from the air outlet 1 and the defrosting fog outlet 2 in the automobile to the front windshield 15, hot air is output simultaneously from the inside to the outside, so that the temperature difference between the inside and the outside of the front windshield 15 is reduced, the fogging speed of the inner surface of the front windshield 15 is relieved, the humidity in the automobile is gradually reduced due to the effect of a heating mode, the fogging situation of the inner surface of the front windshield 15 is gradually disappeared, and accordingly, the defogging of the front windshield 15 is realized, and the heating can also promote the comfort in the automobile.

In this embodiment, in order to control the opening and closing of the air duct 4, the air duct 4 is provided with an air valve 3.

In this embodiment, the HVAC case 10 is provided with a blowing port 11 and a blowing port 12, the blowing port 11 is connected to an upper blowing port in the vehicle, the blowing port 12 is connected to a lower blowing port in the vehicle, and the blowing port 11 and the blowing port 12 are used for inputting cold air or hot air into the vehicle.

In this embodiment, the blowing face 11, the foot 12 and the defrosting fog 5 are located on the same side, i.e. the side facing the vehicle interior, so as to reduce the total distance of the pipeline, and the air inlet 6 is located on the side facing away from the vehicle interior for allowing the circulating air and fresh air to enter, and the air inlet is communicated with the circulating air inlet and the air inlet outside the vehicle.

In this embodiment, the air door 13 is installed in each of the face blowing port 11, foot blowing port 12, defrosting mist port 5 and air inlet 6, and in actual use, the opening degree of each port is adjusted by the air door 13.

In this embodiment, the air duct 4 is a pipeline, the pipeline is externally arranged or internally arranged on the wiper assembly 14, a passage communicated with the air duct 4 is internally arranged on the wiper, and the air outlet 1 is communicated with the passage.

In this embodiment, a plurality of air outlets 1 are disposed on the wiper blade at intervals along the length direction thereof.

In this embodiment, the refrigeration unit 8 is an evaporator, which is shared with an air conditioning system of a vehicle, without additional configuration.

In this embodiment, the heating element 9 is a heat pump or PTC heater.

The system organically combines an automobile air conditioning system, an HVAC box 10 and a windscreen wiper, and extends the functions of the air conditioning system, thereby improving the functions of the windscreen wiper; hot air or cold air is blown out while the windscreen wiper moves to scrape the frost/fog surface, so that the defrosting/defogging process is accelerated, the heating assembly 9 heats the windscreen in cold seasons, the fan 7 blows hot air from the air outlet 1 and the defrosting fog outlet 2 in the vehicle to the front windscreen 15, internal and external heating is performed to remove the frost, the defrosting speed is high, the rubber strips of the windscreen wiper can be softened, the scraping effect is improved, and the scraping noise is reduced; in wet cooling season, the air conditioner is refrigerated by the refrigerating assembly 8, the fan 7 blows cold air from the air outlet 1 and the defrosting fog outlet 2 in the vehicle to the front windshield 15, internal and external heating defogging is carried out, and meanwhile, the comfort in the vehicle is improved by heating.

Example 2

As shown in fig. 3, embodiment 2 provides an automobile including an air conditioning system, the defrosting and demisting system described above, and an evaporator of the air conditioning system is located in the HVAC case 10 on the basis of embodiment 1.

In this embodiment, the air conditioning system includes a first branch, a second branch, and a four-way valve 20, where the first branch includes a compressor 18 and a gas-liquid separator 19 sequentially connected via a pipe, and two ends of the first branch are respectively connected to two ports of the four-way valve 20; the second branch comprises an evaporator, an expansion valve 16 and a condenser 17 which are sequentially connected through pipelines, and two ends of the second branch are respectively connected with the other two ports of the four-way valve 20. It should be noted that, the air conditioning system is a system necessary for the automobile, and the working principle thereof is not described herein.

The automobile organically combines an air conditioning system, an HVAC box 10 and a windscreen wiper, and extends the functions of the air conditioning system, thereby improving the functions of the windscreen wiper; hot air or cold air is blown out while the windscreen wiper moves to scrape the frost/fog surface, so that the defrosting/defogging process is accelerated, the heating assembly 9 heats the windscreen in cold seasons, the fan 7 blows hot air from the air outlet 1 and the defrosting fog outlet 2 in the vehicle to the front windscreen 15, internal and external heating is performed to remove the frost, the defrosting speed is high, the rubber strips of the windscreen wiper can be softened, the scraping effect is improved, and the scraping noise is reduced; in wet cooling season, the air conditioner is refrigerated by the refrigerating assembly 8, the fan 7 blows cold air from the air outlet 1 and the defrosting fog outlet 2 in the vehicle to the front windshield 15, internal and external heating defogging is carried out, and meanwhile, the comfort in the vehicle is improved by heating.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters refer to like items and, thus, once an item is defined, no further discussion thereof is necessary in the following.

In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the indicated azimuth or positional relationships, merely for convenience of describing the present application and simplifying the description, and without being stated to the contrary, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe spatial positional relationships of features. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

If the application discloses or relates to components or structures that are fixedly connected to each other, then unless otherwise stated, the fixedly connected structure is understood as: a detachable fixed connection (e.g. using a bolt or screw connection) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).

While the foregoing is directed to the preferred embodiment, other and further embodiments of the utility model will be apparent to those skilled in the art from the following description, wherein the utility model is described, by way of illustration and example only, and it is intended that the utility model not be limited to the specific embodiments illustrated and described, but that the utility model is to be limited to the specific embodiments illustrated and described.

Claims (10)

1. The utility model provides a defrosting defogging system, includes wiper assembly, in car defrosting fog wind gap, its characterized in that: the air inlet of the air channel and the defrosting fog opening in the vehicle are communicated with the defrosting fog opening of the HVAC box body;

an air inlet is formed in the HVAC box body, and a fan, a refrigerating assembly and a heating assembly are arranged in the HVAC box body.

2. The defrost and defog system of claim 1, wherein: and an air valve is arranged on the air duct.

3. The defrost and defog system of claim 2, wherein: the HVAC box body is provided with a face blowing opening and a foot blowing opening, the face blowing opening is communicated with an upper air blowing opening in the automobile, and the foot blowing opening is communicated with a lower air blowing opening in the automobile.

4. The defrost and defog system of claim 3, wherein: the face blowing opening, the foot blowing opening and the defrosting fog opening are positioned on the same side.

5. The defrost and defog system of claim 4, wherein: and air doors are arranged in the face blowing opening, the foot blowing opening, the defrosting fog opening and the air inlet.

6. The defrost and defog system of claim 1, wherein: the air duct is a pipeline, a passage for communicating the air duct is arranged in the windscreen wiper, and the air outlet is communicated with the passage.

7. The defrost and defog system of claim 6, wherein: a plurality of air outlets are arranged on the windscreen wiper at intervals along the length direction of the windscreen wiper.

8. The defrost and defog system of claim 1, wherein: the refrigeration component is an evaporator.

9. The defrost and defog system of claim 1, wherein: the heating component is a heat pump or a PTC heating element.

10. An automobile, characterized in that: a defrost and defog system as claimed in any one of claims 1 to 9, comprising an air conditioning system, an evaporator of the air conditioning system being located within the HVAC case.