CN108482319B

CN108482319B - Defrosting device and automobile

Info

Publication number: CN108482319B
Application number: CN201810189642.9A
Authority: CN
Inventors: 毛洪海; 蔡吉闽; 张钦超; 聂文武; 杨东升
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2018-03-08
Filing date: 2018-03-08
Publication date: 2020-06-26
Anticipated expiration: 2038-03-08
Also published as: CN108482319A

Abstract

The invention relates to the technical field of automobile defrosting, and particularly discloses a defrosting device and an automobile, wherein the defrosting device comprises a defrosting air channel interface, a defrosting air channel connecting cavity and a defrosting air channel connecting cavity; the first flow guide cavity is connected with the access cavity, the nozzle is connected with the first flow guide cavity, a plurality of double-blade linear nozzles are arranged on the nozzle, each nozzle is communicated with the first flow guide cavity, the plurality of nozzles are arranged along the length direction of the nozzle, and two adjacent nozzles are arranged in the opposite direction; the automobile comprises the defrosting device. According to the invention, the plurality of double-blade linear nozzles are arranged, and the two adjacent nozzles are arranged in the opposite directions, so that when hot air flows of the two adjacent nozzles are sprayed onto the surface of the windshield, mutual interference and mutual fusion can be generated, the action area of the hot air flows and the windshield is increased, the heat in the hot air flows can be fully utilized, and the frost melting speed is accelerated.

Description

Defrosting device and automobile

Technical Field

The invention relates to the field of automobile defrosting, in particular to a defrosting device and an automobile.

Background

The defrosting of the automobile is that cold air is heated into hot air by using an automobile heater or an engine cooling circulation system, and the hot air is sprayed to the windshield through a defrosting air channel and a defrosting nozzle, so that the temperature of the windshield is increased, and a frost layer is removed. In winter, especially in north, because outdoor temperature is low, a layer of frost often forms on the front windshield of an automobile, in order to enable the automobile to be used as fast as possible, the conventional automobile is generally provided with a defrosting device communicated with an air duct of an automobile air conditioner at the front windshield, and the defrosting device is used for defrosting the front windshield of the automobile.

Traditional car defroster, generally with the hot gas flow outlet setting in the windshield lower part, the air outlet is mostly the rectangle or the circular of taking the grid, defrosting air outlet spun hot gas flow directly blows through windshield's surface, and heat transfer time is short and heat transfer ability is not strong between the windshield, and the frost layer in driver's field of vision region melts slower.

Therefore, a defrosting device is needed to solve the deficiencies of the prior art.

Disclosure of Invention

One object of the present invention is: the utility model provides a defroster to solve among the prior art automobile defroster air outlet and mostly be the rectangle or the circular of taking the grid, the slower problem of defrosting speed.

Another object of the invention is: the utility model provides an automobile to solve the defroster of car among the prior art, its air outlet is mostly the rectangle or the circular of taking the grid, the slower problem of defrosting speed.

In one aspect, the present invention provides a defrosting apparatus comprising:

the defrosting air channel interface is used for being connected with a defrosting air channel;

the access cavity is connected with the defrosting air channel interface;

the first flow guide cavity is connected with the access cavity;

the nozzle is connected with the first flow guide cavity, a plurality of double-blade-line-shaped nozzles are arranged on the nozzle, each nozzle is communicated with the first flow guide cavity, the nozzles are arranged along the length direction of the nozzle, and two adjacent nozzles are arranged in the opposite direction.

Preferably, the number of the nozzles is even, and two adjacent nozzles are abutted.

Preferably, the shape equation of the bileaflet line shape is:

(x²+y²)²＝4L·x²y

wherein: (x, y) is the coordinate of a point on the bilobed line in a rectangular coordinate system, the origin is the intersection point of the bilobed line two lobes, the symmetric center of the bilobed line two lobes is taken as the y direction, the direction vertical to the y direction is taken as the x direction, and L is equal to the width of the nozzle.

Preferably, the cross section of the spout is rectangular, and the plurality of nozzles are arranged along the length direction of the spout.

Preferably, the width of the nozzle is 5mm to 10mm, and the length is 150mm to 200 mm.

Preferably, the nozzle structure further comprises a second flow guide cavity, a plurality of flow guide channels are arranged in the second flow guide cavity, the flow guide channels correspond to the nozzles one to one, one end of each flow guide channel is communicated with the first flow guide cavity, and the other end of each flow guide channel is communicated with the nozzles.

Preferably, the flow guide channel is conical, the large end of the flow guide channel is communicated with the first flow guide cavity, and the small end of the flow guide channel is communicated with the nozzle.

Preferably, the depth of the flow guide channel is 20 mm-30 mm.

Preferably, the first diversion cavity is obliquely arranged relative to the defrosting air duct interface.

Preferably, the depth of the first diversion cavity is 10 mm-20 mm.

In another aspect, the present invention provides an automobile, including the defrosting apparatus in any one of the above aspects.

The invention has the beneficial effects that:

1) through setting up the linear nozzle of a plurality of bilobed lines to two adjacent nozzles are reverse to be set up, thereby when the hot gas flow of two adjacent nozzles spouts windshield, can take place mutual interference, and fuse each other, increase hot gas flow and windshield's active area, can make the heat make full use of in the hot gas flow for the speed of melting of frost.

2) The conical flow guide channel is arranged, and the small end of the flow guide channel is connected with the nozzle, so that flowing air flow can be accelerated, the hot air flow ejected by the nozzle has the jet impact effect, and the heat exchange capacity of the hot air flow and the front windshield is enhanced.

Drawings

FIG. 1 is a schematic front view of a defroster of an embodiment of the present invention;

FIG. 2 is a side schematic view of the defroster of FIG. 1;

FIG. 3 is a partial cross-sectional view of a second baffle chamber of the defroster of FIG. 1;

fig. 4 is a schematic view of the defroster nozzle of fig. 1.

In the figure:

1. a defrosting air channel interface; 2. accessing the cavity; 3. a first flow guide cavity; 4. a second diversion cavity; 41. a flow guide channel; 5. a spout; 51. and (4) a nozzle.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The embodiment provides a defrosting device, as shown in fig. 1-4, including defrosting air duct interface 1, insert chamber 2, first water conservancy diversion chamber 3, second water conservancy diversion chamber 4 and spout 5, wherein, defrosting air duct interface 1 is used for being connected with the defrosting air duct, the one end that inserts chamber 2 and defrosting air duct interface 1 are connected, the other end is connected with the one end in first water conservancy diversion chamber 3, the other end and the second water conservancy diversion chamber 4 in first water conservancy diversion chamber 3 are connected, the other end and the spout 5 in second water conservancy diversion chamber 4 are connected. The cross section of the nozzle 5 is rectangular, a plurality of nozzles 51 are arranged on the upper end surface of the nozzle 5 along the length direction of the nozzle 5, the nozzles 51 are in a double-blade line shape, the number of the nozzles 51 is even, the nozzles are mutually contacted, two adjacent nozzles 51 are reversely arranged, and a plurality of independent flow guide channels 41 are arranged in the second flow guide cavity 4; the number of the flow guide channels 41 is equal to that of the nozzles 51, and the flow guide channels are connected in a one-to-one correspondence manner; the plurality of flow guide channels 41 are arranged at equal intervals along the length direction of the second flow guide cavity 4, the flow guide channels 41 are conical and are opposite to the nozzle 51, and specifically, one end of each flow guide channel 41 is small in opening and serves as an outlet end; the other end of the flow guide channel is large in opening and is used as an inlet end, the flow guide channel gradually shrinks from the inlet end to the outlet end, the end with the large opening is communicated with the first flow guide cavity 3, the end with the small opening is connected with the nozzle 51, the depth of the flow guide channel 41 is 20 mm-30 mm, and specifically can be 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm or 30 mm.

In the embodiment, the conical flow guide channel 41 is arranged, so that hot air flowing through the flow guide channel 41 can be accelerated, the hot air can be ejected from the nozzle 51 at a higher flow rate to form jet flow, when the hot air acts on the surface of a windshield, frost melting can be accelerated, vortex is not easy to generate at an outlet of the flow guide channel 41, air flow resistance is reduced, air flow can be well guided to flow, and the jet flow is directly ejected from the nozzle 51; by arranging the double-blade-line-shaped nozzles 51 and arranging the nozzles in opposite directions, hot air flows sprayed by two adjacent nozzles 51 interfere with each other when being diffused on the surface of the windshield, a stagnation point can be formed, a heat transfer area is enlarged, the hot air flows with higher flow velocity exist in a larger area range, the action area of the high-speed hot air flows and frost is enlarged, heat exchange between the hot air flows and the frost is fully completed, and the frost melting can be realized in a shorter time.

The rectangular section of the spout 5 has a width of 5mm to 10mm and a length of 150mm to 200mm, specifically, the width may be 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm or 10mm, and the length may be 150mm, 155mm, 160mm, 165mm, 170mm, 175mm, 180mm, 185mm, 190mm, 195mm or 200 mm.

The shape equation of the bileaflet line is:

(x²+y²)²＝4L·x²y

wherein: (x, y) is the coordinate of a point on the bilobed line in a rectangular coordinate system, the origin is the intersection point of the two bilobed line-shaped lobes, the symmetrical center of the two bilobed line-shaped lobes is taken as the y direction, the arrangement direction of the two bilobed line-shaped lobes is taken as the x direction, the value of L is equal to the width of the nozzle 5, and the units of x, y and L are all mm.

The cross section of the first diversion cavity 3 is rectangular, and a certain inclination angle is formed between the first diversion cavity and the access cavity 2, so that after hot air enters the first diversion cavity 3 from the access cavity 2, the flow direction of the air is changed, specifically, the direction of the air is consistent with that of the air in the second diversion cavity 4, and the hot air can be conveniently sprayed from the second diversion cavity 4. The depth of the first diversion cavity 3 is 10mm to 20mm, and preferably, it can be 10mm, 12mm, 15mm, 17mm or 20 mm. In this embodiment, the direction of the air flow in the access cavity 2 and the second diversion cavity 4 has a certain angle, and by arranging the first diversion cavity 3, the angle difference between the access cavity 2 and the second diversion cavity 4 can be reduced, the air flow can be prevented from directly entering the second diversion cavity 4 from the access cavity 2, and the hot air flow is prevented from being reduced due to the overlarge angle change, so that the jet of the hot air flow is influenced.

The embodiment also provides an automobile comprising the defrosting device in the scheme.

When the defrosting device is operated, circulating water firstly flows through the engine, flows into the warm air core body after flowing through the heater, heats cold air and then flows back to the engine to complete one cycle. Cold air is sucked by a fan, flows through a warm air core body and is heated by hot water of the warm air core body to be changed into hot air, hot air flows into a defrosting air channel connector 1 through a defrosting air channel, then enters an access cavity 2, enters a first flow guide cavity 3 through the access cavity 2, is adjusted by the first flow guide cavity 3 to flow backwards into each flow guide channel 41 of a second flow guide cavity 4, is accelerated by the flow guide channels 41 and then is jetted out through a double-blade linear nozzle 51, and a frost layer on glass is melted after heat exchange with the frost layer on the glass is carried out on a front windshield.

In the embodiment, the plurality of double-blade-line-shaped nozzles 51 are arranged, and the two adjacent nozzles 51 are arranged in opposite directions, so that when hot air of the two adjacent nozzles 51 is sprayed onto the surface of the windshield, mutual interference and mutual fusion can occur, the action area of the hot air and the windshield is increased, heat in the hot air can be fully utilized, and the melting speed of frost is increased.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A defrost device, comprising:

the defrosting air channel interface (1) is used for being connected with a defrosting air channel;

the access cavity (2) is connected with the defrosting air channel interface (1);

a first flow guiding cavity (3) connected with the access cavity (2);

the nozzle (5) is connected with the first diversion cavity (3), a plurality of double-blade linear nozzles (51) are arranged on the nozzle (5), each nozzle (51) is communicated with the first diversion cavity (3), the plurality of nozzles (51) are arranged along the length direction of the nozzle (5), two adjacent nozzles (51) are arranged in opposite directions, the number of the nozzles (51) is even, two adjacent nozzles (51) are attached, and the shape equation of the double-blade linear nozzles is as follows:

(x²+y²)²＝4L·x²y

wherein: (x, y) is the coordinate of a point on the bilobed line in a rectangular coordinate system, the origin is the intersection point of the bilobed line two lobes, the symmetrical center of the bilobed line two lobes is taken as the y direction, the direction vertical to the y direction is taken as the x direction, and L is equal to the width of the nozzle (5).

2. Defrost device according to claim 1, characterized in that the spout (5) is rectangular in cross-section and that a number of nozzles (51) are arranged along the length of the spout (5).

3. Defrost device according to claim 2, characterized in that the width of the spout (5) is 5-10 mm and the length is 150-200 mm.

4. The defrosting apparatus of claim 1 further comprising a second flow guiding chamber (4), wherein a plurality of flow guiding channels (41) are disposed in the second flow guiding chamber (4), the flow guiding channels (41) correspond to the nozzles (51) one by one, and one end of each flow guiding channel (41) is communicated with the first flow guiding chamber (3) and the other end is communicated with the nozzle (51).

5. Defrost device according to claim 4, characterized in that the flow guide channel (41) is conical, the large end of the flow guide channel (41) communicating with the first flow guide chamber (3) and the small end communicating with the nozzle (51).

6. Defrost device according to claim 5, characterized in that the depth of the flow guide channel (41) is 20-30 mm.

7. Defrost device according to claim 1, characterized in that the first diversion chamber (3) is arranged obliquely in relation to the defrost duct interface (1).

8. Defrost device according to claim 1, characterized in that the depth of the first diversion chamber (3) is 10-20 mm.

9. An automobile comprising the defroster of any one of claims 1 to 8.