KR20200099815A - Heat exchanger and blower module including it - Google Patents

Abstract

The present invention provides a heat exchanger, which includes: a first header tank (100) having an inflow path (111), an outflow path (112) and a plurality of moving flow paths; a second header tank (200) arranged to face the first header tank (100) and having a plurality of moving flow paths; and a plurality of fine tubes (300) penetrating into one surface of the first header tank (100) and the second header tank (200) to be coupled thereto, wherein at least one of the plurality of moving flow paths has the moving flow path in a communicating structure. The introduced air is directly heat-exchanged with the fine tubes (300). Therefore, the heat exchanger can increase a degree of freedom of a size.

Description

Heat exchanger and blower module including it

The embodiment relates to a heat exchanger and a blower module including the same. In more detail, it relates to a circular heat exchanger using a plurality of microtubes without a fin structure and a blower module including the same.

In general, a heat exchanger is a device that absorbs heat from one side and releases heat to the other between two environments with a temperature difference. When the heat exchanger absorbs heat from the room and releases it to the outside, it acts as a cooling system, and when it absorbs and releases heat from the outside, it acts as a heating system.

Such heat exchangers are used in vehicle HVAC together with blowers. The arrangement of heat exchangers and blowers in such a vehicle HVAC is as follows.

Based on the flow direction of the air flowing into the room through the HVAC, a sirocco fan mounted on the blower module first inflows the air from outside and inside the HVAC.

In the case of the blower module, it may be integrally formed with the main part of the HVAC in which a heat exchanger and various doors are mounted, and may be configured as a separate type. The sirocco fan can structurally introduce air in the axial direction to pressurize and supply air to the heat exchanger in the circumferential direction. Air introduced from the blower module is supplied to the room through an evaporator and a heater through doors and internal flow paths.

Such a structure is also used in the roof and rear HVAC disposed on the top (ceiling) of the vehicle or on the side or rear of the rear seat.

In the case of the existing configuration, an air flow channel (Duct) must be added in a complicated way to supply the air introduced from the blower to the heat exchanger, and the shape and pressure drop should be optimized so that air can be evenly supplied to the effective area. Optimization has also been added. For this reason, there is a limit to the reduction of HVAC size and fan capacity.

Republic of Korea Patent Publication No. 10-2018-0129075.

The embodiment aims to prevent unnecessary size increase by placing a heat exchanger using microtubes directly outside the blower fan.

In addition, it is an object to increase the efficiency of the heat exchange system by reducing unnecessary flow resistance due to long ducts and bending parts.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems that are not mentioned herein will be clearly understood by those skilled in the art from the following description.

An embodiment of the present invention, a first header tank having an inlet passage, an outlet passage, and a plurality of moving passages; A second header tank disposed to face the first header tank and having a plurality of movement passages; And a plurality of microtubes passing through and coupled to one surface of the first header tank and the second header tank, wherein at least one of the plurality of moving passages has a moving passage having a communication structure, and introduced air May be characterized in that the heat exchange directly with the microtube.

Preferably, the first header tank and the second header tank may have a circular ring structure.

Preferably, the first header tank and the second header tank may be characterized in that they share a rotation shaft.

Preferably, a plurality of baffles may be disposed in the moving passages between the first header tank and the second header tank.

Preferably, a baffle may be disposed between the inlet passage and the outlet passage.

Preferably, the microtubes may be arranged on a plurality of concentric circles with respect to a central axis.

Preferably, the microtubes may be arranged to be offset from each other in the circumferential direction of the concentric circle.

Preferably, a plurality of communication holes may be arranged in a partition wall partitioning the plurality of flow paths of the second header tank.

In addition, a blower module according to another embodiment of the present invention includes a heat exchanger having a cylindrical structure and exchanging heat with outside air using a microtube; A blower disposed inside the heat exchanger and flowing in the air from the lower portion thereof and moving toward the heat exchanger; And a duct for discharging the air passing through the heat exchanger.

Preferably, the duct may have a plurality of discharge ports.

According to the embodiment, there is an effect of increasing heat exchange efficiency and increasing the degree of freedom in size.

In addition, there is an effect of increasing the drainage property by solving the problem of condensation of moisture occurring in the conventional heat exchanger having a fin structure.

Various and beneficial advantages and effects of the present invention are not limited to the above-described contents, and may be more easily understood in the course of describing specific embodiments of the present invention.

1 is a view showing a perspective view of a heat exchanger according to an embodiment of the present invention,
2 is a cross-sectional view in the AA′ direction of FIG. 1,
3 is a cross-sectional view of BB` of FIG. 1,
Figure 4 is an internal structure of the first tank of Figure 1,
5 is an internal structure of the second tank of FIG. 1,
6 is a diagram showing a movement path of a refrigerant in a heat exchanger,
7 is a diagram showing a first embodiment of a blower module, another embodiment of the present invention,
8 is a lower perspective view of FIG. 7,
9 is a cross-sectional view of CC′ of FIG. 7,
10 is a second embodiment of a blower module,
11 is a third embodiment of a blower module,
12 is a fourth embodiment of a blower module.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical idea of the present invention is not limited to some embodiments to be described, but may be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the constituent elements may be selectively selected. It can be combined with and substituted for use.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention are generally understood by those of ordinary skill in the art, unless explicitly defined and described. It can be interpreted as a meaning, and terms generally used, such as terms defined in a dictionary, may be interpreted in consideration of the meaning in the context of the related technology.

In addition, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In the present specification, the singular form may include the plural form unless specifically stated in the phrase, and when described as “at least one (or more than one) of A and (and) B and C”, it is combined with A, B, and C. It may contain one or more of all possible combinations.

In addition, terms such as first, second, A, B, (a), and (b) may be used in describing the constituent elements of the embodiment of the present invention.

These terms are only for distinguishing the component from other components, and are not limited to the nature, order, or order of the component by the term.

And, when a component is described as being'connected','coupled' or'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also the component and It may also include the case of being'connected','coupled' or'connected' due to another component between the other components.

In addition, when it is described as being formed or disposed on the “top (top) or bottom (bottom)” of each component, the top (top) or bottom (bottom) is one as well as when the two components are in direct contact with each other. It also includes a case in which the above other component is formed or disposed between the two components. In addition, when expressed as "upper (upper) or lower (lower)", the meaning of not only an upward direction but also a downward direction based on one component may be included.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings, but identical or corresponding components are denoted by the same reference numerals regardless of reference numerals, and redundant descriptions thereof will be omitted.

1 to 12, in order to clearly understand the present invention conceptually, only the main characteristic parts are clearly shown, and as a result, various modifications of the illustration are expected, and the scope of the present invention is limited by the specific shape shown in the drawings. It doesn't have to be.

1 is a view showing a perspective view of a heat exchanger according to an embodiment of the present invention, FIG. 2 is a cross-sectional view in the AA′ direction of FIG. 1, FIG. 3 is a cross-sectional view BB′ of FIG. 1, and FIG. 1 is the internal structure of the tank, and FIG. 5 is the internal structure of the second tank of FIG. 1.

1 to 5, a heat exchanger 1 according to an embodiment of the present invention may include a first header tank 100, a second header tank 200, and a microtube 300.

The first header tank 100 may include an inflow passage 111 connected to a refrigerant supply unit (not shown) and an outflow passage 112 for refrigerant heat-exchanging with incoming outdoor air.

The first header tank 100 may include a plurality of moving passages. In one embodiment, the first header tank 100 may include a first moving passage 110 and a second moving passage 130.

The first movement passage 110 and the second movement passage 130 may be divided and exist. In one embodiment, in the first moving passage 110 and the second moving passage 130, one passage may be partitioned through the first partition wall 120. However, the present invention is not limited thereto and may be divided into a separate flow path.

At this time, at least one of the plurality of moving passages may be provided in a communication structure.

In one embodiment, the first moving passage 110 and the second moving passage 130 are provided in a circular band structure so that the refrigerant may move through the space inside the passage. This is a shape that appears as the first header tank 100 and the second header tank 200 are provided in a belt shape in which the ends of the cylinder are joined.

In the drawings, the first header tank 100 and the second header tank 200 are shown in a circular ring structure, but the present invention is not limited thereto, and various polygonal ring structures for forming a predetermined space may be provided.

As shown in the drawing, the first header tank 100 and the second header tank 200 provided in a circular ring structure may be provided in the same shape sharing a rotation axis.

The second header tank 200 is disposed to face the first header tank 100 and may have a plurality of movement passages. In one embodiment, the moving passages of the second header tank 200 may be arranged in the same shape and number as the moving passages of the first header tank 100.

The third flow path and the fourth flow path of the second header tank 200 may be partitioned through the second partition wall 220. In this case, a plurality of communication holes 221 for moving the refrigerant of the third flow path to the fourth flow path may be disposed in the second partition wall 220.

In one embodiment, the plurality of communication holes 221 may be formed over the entire second partition wall 220 and may be disposed at regular intervals. The shape of the communication hole 221 is not limited, and may be modified in various shapes. In addition, the size of the communication hole 221 may be changed to various sizes according to the pressure of the refrigerant moving through the flow path.

The microtube 300 may pass through one surface of the first header tank 100 and the second header tank 200 to be coupled. The microtube 300 may connect the first header tank 100 and the second header tank 200 to move the refrigerant, and may exchange heat with incoming outdoor air.

In one embodiment, the microtube 300 may be coupled to the first header tank 100 and the second header tank 200 through bonding or brazing welding.

Referring to FIG. 3, the microtubes 300 may be disposed on a plurality of concentric circles with respect to the central axis. At this time, the center of each microtube 300 may be disposed on a concentric circle.

At this time, the microtubes 300 disposed on a plurality of concentric circles may be arranged to be shifted in the circumferential direction of the concentric circles. The microtubes 300 disposed in the second concentric circle L2 are disposed while looking between the microtubes 300 disposed in the first concentric circle L1. In addition, the microtubes 300 disposed in the third concentric circles L3 may be disposed so as to look between the microtubes 300 of the second concentric circles.

This is to increase the efficiency of heat exchange when external air flowing from the annular heat exchanger 1 to the center moves toward the heat exchanger 1.

In one embodiment, when outside air passes through the microtube 300 disposed in the first concentric circle L1, it collides with the microtube 300 disposed in the second concentric circle L2 and moves again. Unlike the heat exchanger 1 provided with a conventional fin structure, this increases the contact time, thereby increasing heat exchange efficiency.

In addition, in a heat exchanger using a conventional fin structure, a fin that is bent in a'S' shape or a'ㄹ' shape is disposed between the tube and the tube. At this time, there is a problem that moisture condenses in the bending region of the fin, thereby reducing heat exchange efficiency.

In the present invention, the heat exchange efficiency can be increased by improving the condensation of moisture by omitting the conventional fin structure.

6 is a diagram showing a movement path of a refrigerant in the heat exchanger 1, and is a diagram showing a movement path of a refrigerant having a 4-pass structure of two movement passages.

A plurality of baffles 400 are disposed in the plurality of moving passages of the first header tank 100 and the plurality of moving passages of the second header tank 200 to control the moving path of the refrigerant.

The refrigerant introduced through the inlet passage 111 is a first flow passage that divides the first moving passage 110 into the inlet passage 111 and the outlet passage 112, and divides the first moving passage 110 into the inlet passage 111 and the outlet passage 112. It is rotated clockwise by 1 baffle 410. The first baffle 410 includes a first moving passage disposed in the first header tank 100 and a third moving passage disposed in the second moving passage 130 and the second header tank 200 and the fourth It is disposed in the entire moving passage 230 to control the flow of the refrigerant.

In addition, the refrigerant flowing through the inlet passage collides with the second baffle 420 and moves to the second moving passage 130 of the first header tank 100, and collides with the first baffle 410 to the outflow passage. Will be discharged.

As shown in FIG. 2, the second baffle 420 includes the first moving passage 110 of the first header tank 100 and the third moving passage 210 and the fourth moving passage of the second header tank 200. The refrigerant may be disposed to move through the second movement passage 130 by closing one area of the 230).

In FIG. 6, a 4 pass structure of two moving passages is described, but the structure is not limited thereto, and various pass structures may be implemented according to the arrangement of the plurality of baffles 400.

In addition, the first header tank 100 and the second header tank 200, which are components of the present invention, are described in a two-row structure, but are not limited thereto.

In particular, when it is installed on the ceiling of a vehicle, the height of the microtube 300 is limited. In this case, it is possible to increase the heat exchange efficiency by increasing the number of rows (the number of moving passages), and overcome the limitation of the height.

Meanwhile, in the following, a blower module 1a according to another embodiment of the present invention will be described with reference to the accompanying drawings. However, the description of the same as described in the heat exchanger 1 according to an embodiment of the present invention will be omitted.

7 is a view showing a first embodiment of a blower module 1a, which is another embodiment of the present invention, FIG. 8 is a bottom perspective view of FIG. 7, FIG. 9 is a cross-sectional view of FIG. 7, and FIG. 10 is a blower module ( 1a) is the second embodiment, Fig. 11 is a third embodiment of the blower module 1a, and Fig. 12 is a fourth embodiment of the blower module 1a.

The same reference numerals as in FIGS. 1 to 6 denote the same members, and detailed descriptions thereof will be omitted.

7 to 12, a blower module 1a according to another embodiment of the present invention may include a heat exchanger 1, a blower 10, and a duct 30.

The heat exchanger 1 is provided in an annular structure as mentioned above, and by omitting the conventional fin structure and applying the microtube 300, it is possible to improve drainage and increase heat exchange efficiency.

The blower 10 is disposed inside the heat exchanger 1, which has a ring structure, and can be moved to the heat exchanger 1 by introducing air from the lower part. The structure of the blower 10 is not limited, but may be modified into various structures for supplying outside air to the heat exchanger 1 by introducing air from the lower side. In one embodiment, the blower 10 may be a sirocco fan.

The duct 30 may discharge air heat-exchanged through the heat exchanger 1. The shape of the duct 30 is not limited and may be discharged in various shapes.

In one embodiment, the duct 30 may have a plurality of discharge ports 31 and may be arranged in various directions.

As shown in FIG. 7, the discharge ports 31 provided in the duct 30 may be disposed at 180 degrees, and as shown in FIG. 10, four discharge ports may be disposed at intervals of 90 degrees.

In addition, as shown in FIG. 11, one discharge port 31 can discharge air that has passed through the heat exchanger 1 in all directions of 360 degrees, and as shown in FIG. 12, one area of the discharge port 31 is bent. You can also adjust the discharge direction.

As described above, the blower module 1a, which is another embodiment of the present invention, is mounted at a required position and can freely adjust the discharge direction of air passing through the heat exchanger 1.

As described above, with reference to the accompanying drawings with respect to an embodiment of the present invention was looked at in detail.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention belongs can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

1: heat exchanger 1a: blower module
10: blower 30: duct
31: discharge port
100: first header tank 110: first moving passage
111: inflow passage 112: outflow passage
120: first partition wall 130: second moving passage
200: second header tank 210: third moving passage
220: second partition wall 221: communication hole
230: fourth moving flow path 300: microtube
400: baffle 410: first baffle
420: second baffle

Claims (10)

A first header tank 100 having an inlet passage 111 and an outlet passage 112 and a plurality of moving passages;
A second header tank 200 disposed to face the first header tank 100 and having a plurality of movement passages; And
Including; a plurality of microtubes 300 through which one surface of the first header tank 100 and the second header tank 200 are coupled to each other,
A heat exchanger, characterized in that at least one of the plurality of moving passages has a moving passage having a communication structure, and the incoming air is directly exchanged with the microtube (300). The method of claim 1,
The first header tank (100) and the second header tank (200) is a heat exchanger, characterized in that having a circular ring structure. The method of claim 2,
The heat exchanger, characterized in that the first header tank 100 and the second header tank 200 share a rotation shaft. The method of claim 3,
A heat exchanger in which a plurality of baffles (400) are disposed in a moving passage between the first header tank (100) and the second header tank (200). The method of claim 4,
A heat exchanger, characterized in that a baffle (400) is disposed between the inflow passage (111) and the outflow passage (112). The method of claim 1,
The microtube 300 is a heat exchanger, characterized in that disposed on a plurality of concentric circles with respect to the central axis. The method of claim 6,
The microtubes (300) are heat exchanger, characterized in that arranged to shift from each other in the circumferential direction of the concentric circle. The method of claim 1,
A heat exchanger, characterized in that a plurality of communication holes (221) are disposed in the second partition wall (220) partitioning the plurality of flow paths of the second header tank (200). The heat exchanger (1) of any one of claims 1 to 8;
A blower (10) disposed inside the heat exchanger (1) and flowing in the air from the lower portion to move toward the heat exchanger (1); And
A duct 30 for discharging the air that has passed through the heat exchanger 1;
Blower module comprising a. The method of claim 9,
The duct 30 is a blower module having a plurality of discharge ports 31.

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