CN210101252U

CN210101252U - Structure for improving air speed uniformity on surface of core body

Info

Publication number: CN210101252U
Application number: CN201920656058.XU
Authority: CN
Inventors: 陶林; 谢虹; 朴雨植; 李锺赞; 陈晓路
Original assignee: Taiplatin Shanghai Environmental Technology Co Ltd
Current assignee: Taiplatin Shanghai Environmental Technology Co Ltd
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-02-21
Anticipated expiration: 2029-05-09

Abstract

The utility model provides an increase structure of core surface air speed homogeneity is equipped with 3 baffles near the air intake position at air-conditioning box casing internal surface, is first baffle, second baffle and third baffle respectively, first baffle and air door limit structure fixed connection, second baffle and third baffle setting are between air door and core. The utility model provides an air from the air intake get into the inhomogeneous problem of air distribution in the core, improved the heat exchange efficiency of core.

Description

Structure for improving air speed uniformity on surface of core body

Technical Field

The utility model relates to an automobile air conditioner field specifically relates to an increase structure of core surface air speed homogeneity.

Background

With the increase of environmental awareness of people, the pure electric vehicle is more and more the trend in the future. Meanwhile, the appearance of the pure electric vehicle also puts higher requirements on an air conditioning system. Air entering the condenser, the heater, the fan heater and other cores from the air inlet in the air-conditioning box has the problems of uneven air flow rate and distribution and the like due to the influence of the inner surface structure of the shell of the air-conditioning box, and the heat exchange efficiency of the cores is greatly influenced.

SUMMERY OF THE UTILITY MODEL

Defect to among the prior art, the utility model aims at providing an increase structure of core surface air speed homogeneity, the utility model discloses be equipped with 3 baffles near the air intake position at air-conditioning box casing internal surface, solved the air and got into the inhomogeneous problem of air distribution in the core from the air intake, improved the heat exchange efficiency of core.

According to the utility model discloses an aspect provides an increase structure of core surface air speed homogeneity, is equipped with 3 baffles near the air intake position at air-conditioning box casing internal surface, is first baffle (1), second baffle (2) and third baffle (3) respectively, first baffle (1) and air door limit structure (4) fixed connection, second baffle (2) and third baffle (3) set up between air door (5) and core (6). According to the invention, the air-conditioning box is redesigned through CFD (computational fluid Dynamics) analysis, and the arrangement positions, the sizes, the angles with other parts in the air-conditioning box and the like of the three baffles are reasonably obtained, so that the uniformity of the air flow speed and distribution on the surface of the core body is improved, and the heat exchange efficiency of the core body is improved.

Preferably, the first baffle (1) is of a long strip structure, the length of the first baffle is 5mm, and the thickness of the first baffle is 1 mm.

Preferably, the first baffle (1) is perpendicular to the air door limiting structure (4).

Preferably, the second baffle (2) is of an arc structure, the angle of the two arc plates is 135 degrees, the length of the two arc plates is respectively 8mm and 10mm, and the thickness of the two arc plates is 1 mm.

Preferably, one of them arc of second baffle (2) sets up with air door (5) is perpendicular, and its top is 4mm with air door (5) distance L1, is 32mm with air door limit structure (4) distance L2.

Preferably, the third baffle (3) is of a long strip structure, the length of the third baffle is 13mm, and the thickness of the third baffle is 1 mm.

Preferably, a distance L3 between a top end of the third baffle (3) and the air door (5) is 9.5mm, and the third baffle is arranged at an angle of 45 degrees with the air door (5).

Preferably, the first baffle (1), the second baffle (2) and the third baffle (3) are made of the same material as that of the air-conditioning box, and are made of polypropylene, and 20% of talcum powder is added into the polypropylene.

Preferably, the first baffle (1), the second baffle (2) and the third baffle (3) are fixedly arranged in a groove formed in the inner surface of the shell of the air-conditioning box in a clamping manner.

Preferably, the first baffle (1), the second baffle (2) and the third baffle (3) are of an integrally formed structure with the air-conditioning box shell.

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

(1) the utility model relates to an increase structure of core surface air speed homogeneity, the theory of operation: the air-conditioning box is redesigned through CFD analysis, and the arrangement positions and the sizes of the three baffles, the design angles with other components in the air-conditioning box and the like are reasonably obtained, so that the flow speed and the distribution uniformity of air on the surface of the core are improved, and the heat exchange efficiency of the core is improved;

(2) the utility model relates to a structure for increasing the uniformity of the air speed on the surface of a core, which is characterized in that 3 baffles are arranged on the inner surface of the shell of an air-conditioning box near an air inlet, thereby solving the problem of uneven air distribution when air enters the core from the air inlet;

(3) the structure for increasing the air speed uniformity on the surface of the core body has simple structure, ingenious design and obvious effect;

(4) the structure for increasing the air speed uniformity on the surface of the core body has wide application range, can be suitable for shells of core bodies such as condensers, heaters, fan heaters and the like, and has strong practicability;

(5) the utility model relates to an increase structure of core surface air speed homogeneity, it is simple to make, with low costs, easily processing and assembly, effectual is fit for promoting on a large scale.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a structure for increasing the uniformity of air velocity across the surface of a core;

FIG. 2 is an enlarged view of a portion of the structure for increasing the uniformity of air velocity across the surface of the core;

FIG. 3 is a cross-sectional profile of the HVAC in its original state;

FIG. 4 is a cross-sectional profile of an HVAC system with the addition of baffles for optimization;

FIG. 5 is a core surface velocity profile in the raw state;

FIG. 6 is a graph of the velocity profile of the core surface for the optimum condition with baffles added.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

Examples

The present embodiment provides a structure for increasing the uniformity of air velocity on the surface of a core, which is shown in detail in fig. 1 and 2: be equipped with 3 baffles in air-conditioning box casing internal surface near the air intake position, be first baffle 1, second baffle 2 and third baffle 3 respectively,

first baffle

1 and 4 fixed connection of air door limit structure, second baffle 2 and third baffle 3 set up between air door 5 and core 6. According to the invention, the air-conditioning box is redesigned through CFD (Computational Fluid Dynamics) analysis, and the arrangement positions, the sizes, the angles with other parts in the air-conditioning box and the like of the three baffles are reasonably obtained, so that the uniformity of the air flow speed and distribution on the surface of the core body is improved, and the heat exchange efficiency of the core body is improved.

Further, the first baffle 1 is of a long strip-shaped structure, the length of the first baffle is 5mm, and the thickness of the first baffle is 1 mm.

Further, the first baffle 1 is perpendicular to the air door limiting structure 4.

Further, second baffle 2 is the arc structure, and the angle of two arcs is 135, and length is 8mm and 10mm respectively, and thickness is 1 mm.

Furthermore, one of them arc of second baffle 2 sets up with air door 5 is perpendicular, and its top is 4mm with air door 5 distance L1, is 32mm with air door limit structure 4 distance L2.

Further, the third baffle 3 is a strip-shaped structure, the length of the third baffle is 13mm, and the thickness of the third baffle is 1 mm.

Furthermore, a distance L3 between a top end of the third baffle 3 and the damper 5 is 9.5mm, and the third baffle is arranged at an angle of 45 ° with respect to the damper 5.

Further, the first baffle 1, the second baffle 2 and the third baffle 3 are made of the same material as that of the air conditioning box, are made of polypropylene, and are added with 20% of talcum powder.

Furthermore, the first baffle 1, the second baffle 2 and the third baffle 3 are fixedly arranged in a groove formed in the inner surface of the shell of the air-conditioning box in a clamping mode.

Furthermore, the first baffle 1, the second baffle 2 and the third baffle 3 are of an integrally formed structure with the shell of the air-conditioning box.

The method for judging the air speed on the surface of the core body at present comprises the following steps: first CFD simulation: calculating internal flow with simulation software; second experiment: and measuring points are arranged on the surface of the core body for measurement. In this embodiment, three baffles are added in front of the core, a complete air conditioning box CFD model is established, and a comparison optimization result is calculated, fig. 3 is an HVAC cross section distribution diagram in an original state, fig. 4 is an HVAC cross section distribution diagram in an optimized state after the baffles are added, a white area represents a turbulent kinetic energy loss, as can be seen from fig. 3 and 4, the turbulent kinetic energy is obviously reduced after optimization, and it is seen that the uniformity of the air velocity distribution on the surface of the core is improved after the baffles are added. Fig. 5 is a core surface velocity distribution diagram in an original state, fig. 6 is a core surface velocity distribution diagram in an optimized state after a baffle is added, white represents that the velocity is high, a high-speed area in fig. 5 is large, a high-speed area in fig. 6 is reduced, and it can be seen that the uniformity of the core surface air velocity distribution is improved after the baffle is added.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims

1. The utility model provides an increase structure of core surface air speed homogeneity, its characterized in that is equipped with 3 baffles near the air intake position at air-conditioning box casing internal surface, is first baffle (1), second baffle (2) and third baffle (3) respectively, first baffle (1) and air door limit structure (4) fixed connection, second baffle (2) and third baffle (3) set up between air door (5) and core (6).

2. The structure for increasing the air velocity uniformity of the surface of the core body according to claim 1, wherein the first baffle (1) is a long strip structure with a length of 5mm and a thickness of 1 mm.

3. The structure for increasing the air velocity uniformity of the surface of the core according to claim 1 or 2, wherein the first baffle (1) is arranged perpendicular to the damper limiting structure (4).

4. The structure for increasing the air velocity uniformity of the surface of the core body according to claim 1, wherein the second baffle (2) is of an arc-shaped structure, the angle of the two arc-shaped plates is 135 degrees, the length of the two arc-shaped plates is 8mm and 10mm respectively, and the thickness of the two arc-shaped plates is 1 mm.

5. The structure for increasing the air velocity uniformity of the core surface according to claim 4, wherein one of the arc-shaped plates of the second baffle (2) is arranged perpendicular to the damper (5), and the top end of the second baffle is 4mm away from the damper (5) by L1 and 32mm away from the damper limiting structure (4) by L2.

6. The structure for increasing the air velocity uniformity of the surface of the core according to claim 1, wherein the third baffle (3) is an elongated structure with a length of 13mm and a thickness of 1 mm.

7. The structure for increasing the air velocity uniformity of the surface of the core as recited in claim 1 or 6, wherein a top end of said third baffle (3) is located at a distance L3 of 9.5mm from the damper (5) and is disposed at an angle of 45 ° to the damper (5).

8. The structure for increasing the air velocity uniformity of the surface of the core body according to claim 1, wherein the first baffle (1), the second baffle (2) and the third baffle (3) are made of polypropylene and have 20% of talcum powder, and the materials of the first baffle, the second baffle and the third baffle are the same as those of the air conditioning box.

9. The structure for increasing the air speed uniformity of the surface of the core body according to claim 1, wherein the first baffle (1), the second baffle (2) and the third baffle (3) are fixedly arranged in a groove formed in the inner surface of the shell of the air-conditioning box in a clamping manner.

10. The structure for increasing the air speed uniformity on the surface of the core body according to claim 1, wherein the first baffle (1), the second baffle (2) and the third baffle (3) are of an integral structure with the shell of the air-conditioning box.