KR20170103055A - Air-handling unit comprising a drain pan cover structure - Google Patents

Abstract

A drain plate finishing structure including a sealing unit connected to at least a part of the upper edge of the drain plate and an air induction unit connected to the sealing unit to guide the introduced air to the drain plate side, Condensate can be drained.

Description

[0001] The present invention relates to an air-handling unit comprising a drain pan finishing structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a drain plate finishing structure, and more particularly to an air conditioner in which condensate can be smoothly discharged to a lower side of a drain plate using a negative pressure generated by a blower provided in the indoor unit .

Generally, an air handling unit refers to a device that adjusts the optimum condition of the air to be supplied to the room so that the temperature, humidity, airflow, and cleanliness of the room can be harmonized. And an outdoor unit which is constituted by a compressor, a heat exchanger and the like and supplies the refrigerant to the indoor unit.

Such an air conditioner is applied as a basic system to a cycle in which indoor air introduced through an inlet is subjected to heat exchange or filtration at a high or low temperature so as to be reintroduced into the room. Therefore, hot air that has been heat-exchanged during the winter season, and cold air that has been heat-exchanged during the summer season are blown into the room, thereby heating and cooling the room.

In the process of blowing the cool air that has been heat-exchanged in the summer to the room, the moisture in the air condenses on the heat exchanger of the indoor unit, and condensed water is generated. Generally, the condensed water is discharged to the outside of the indoor unit by the drain plate positioned in the lower portion of the heat exchanger.

However, when cold air heat-exchanged by the blower provided in the indoor unit is blown, negative pressure is generated in the indoor space of the indoor unit as the air escapes, so that the condensed water does not smoothly discharge from the drain plate,

In order to solve such a problem, a drain trap is provided on the drain plate, and a state in which the seal corresponding to the pressure of the blower is filled must be maintained. In this case, the height of the drain trap should be higher than the height of the seals to prevent backflow of the seals and condensed water, and it is most preferable that the height of the drain traps is 1.2 times or more of the seam height.

Korean Patent Laid-Open Publication No. 10-2006-0111138 proposes an air conditioner having a drain pipe structure capable of preventing condensed water from flowing backward due to negative pressure and preventing leakage of the condensed water. The drain trap includes a bottom portion of the oil- And a separate auxiliary pipe communicating with the drain pipe is provided to facilitate cleaning, maintenance and repair of the drain pipe.

However, according to the structure of the drain pipe of the air conditioner of Korean Patent Laid-Open Publication No. 10-2006-0111138, sufficient space should be secured in the lower portion of the drain plate in order to provide the oil trap and the auxiliary pipe, Concrete pads must be poured thickly.

That is, the higher the height of the oil trap, the more it is possible to prevent the backflow of the seals and the condensed water. However, since the thickness of the concrete pads installed increases accordingly, There are problems such as a decrease in utilization rate and an increase in installation period.

Therefore, there is a need for an air conditioner that is economical, easy to install, has better space utilization than conventional air conditioners, can prevent backflow of condensed water, and can discharge smoothly without causing such problems.

KR Patent Publication No. 10-2006-0111138 (published on October 26, 2006)

An object of the present invention is to provide an air conditioner having a drain plate finishing structure configured to discharge condensed water smoothly to a lower side of a drain plate using a negative pressure generated by a blower.

In order to achieve the above object, an air conditioner provided with a drain plate finishing structure of the present invention comprises: an inlet port through which air flows; A heat exchange unit for exchanging heat with air introduced through the inlet; A finishing structure connected to the drain plate provided below the heat exchange unit and the drain plate; A discharge port through which the heat-exchanged air flows out by the heat exchange unit; And a blowing fan unit connected to the discharge port, wherein the finishing structure includes an airtight unit connected to at least a part of an upper edge of the drain plate, and an air supply unit connected to the airtight unit to guide the introduced air to the drain plate side There is provided an air conditioner provided with a drain plate finishing structure including an induction portion.

Specific details of other embodiments are included in the " Detailed Description of the Invention "and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention and the manner of achieving them will be apparent by reference to various embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the configurations of the embodiments described below, but may be embodied in various other forms, and each embodiment disclosed in this specification is intended to be illustrative only, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

According to the present invention, there is no need to provide a drain trap such as a separate oil trap, which makes it possible to save installation cost, time, and concrete material of the air conditioner.

In addition, since the negative pressure generated by the blower can be used to smoothly discharge the condensed water, there is no need for an active means such as an additional machine for discharging the condensed water, which is economical and has good space utilization.

Further, the drain plate finishing structure according to the present invention can be applied to conventional drain plates, which is practical and economical.

1 is a plan view for explaining an embodiment of an air conditioner having a drain plate finishing structure according to the present invention.
2 is a cross-sectional view and a partially enlarged view for explaining an embodiment of an air conditioner having a drain plate finishing structure according to the present invention.
3 is a perspective view for explaining an embodiment of the drain plate finishing structure of the present invention.

Before describing the present invention in detail, terms and words used herein should not be construed in an ordinary or dictionary sense and should not be interpreted unconditionally, and in order for the inventor of the present invention to explain his invention in the best way It is to be understood that the concepts of various terms can be properly defined and used, and further, these terms and words should be interpreted in terms of meaning and concept consistent with the technical idea of the present invention.

That is, the terms used herein are used only to describe preferred embodiments of the present invention, and are not intended to specifically limit the contents of the present invention, It should be noted that this is a defined term.

Also, in this specification, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise, and it should be understood that they may include singular do.

Where an element is referred to as "comprising" another element throughout this specification, the term " comprises " does not exclude any other element, It can mean that you can do it.

Further, when it is stated that an element is "inside or connected to" another element, the element may be directly connected to or in contact with the other element, A third component or means for fixing or connecting the component to another component may be present when the component is spaced apart from the first component by a predetermined distance, It should be noted that the description of the components or means of 3 may be omitted.

On the other hand, it should be understood that there is no third component or means when an element is described as being "directly connected" or "directly connected" to another element.

Likewise, other expressions that describe the relationship between the components, such as "between" and "immediately", or "neighboring to" and "directly adjacent to" .

In this specification, terms such as "one side", "other side", "one side", "other side", "first", "second" Is used to clearly distinguish one element from another element, and it should be understood that the meaning of the element is not limited by such term.

It is also to be understood that terms related to positions such as "top", "bottom", "left", "right" in this specification are used to indicate relative positions in the drawing, Unless an absolute position is specified for these positions, it should not be understood that these position-related terms refer to absolute positions.

Furthermore, in the specification of the present invention, the terms "part", "unit", "module", "device" and the like mean a unit capable of handling one or more functions or operations, Or software, or a combination of hardware and software.

In this specification, the same reference numerals are used for the respective components of the drawings to denote the same reference numerals even though they are shown in different drawings, that is, the same reference numerals throughout the specification The symbols indicate the same components.

In the drawings attached to the present specification, the size, position, coupling relationship, and the like of each constituent element of the present invention may be partially or exaggerated or omitted or omitted for the sake of clarity of description of the present invention or for convenience of explanation May be described, and therefore the proportion or scale may not be rigorous.

Further, in the following description of the present invention, a detailed description of a configuration that is considered to be unnecessarily blurring the gist of the present invention, for example, a known technology including the prior art may be omitted.

Hereinafter, the 'drain plate finishing structure' refers to a structure formed by connecting 'drain plate' and 'finishing structure'.

In the following, the term "air conditioner" should be understood as a concept including an "indoor unit".

First, an embodiment of an air conditioner having a drain plate finishing structure according to the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a plan view showing an embodiment of an air conditioner having a drain plate finishing structure according to the present invention. FIG. 2 is a cross-sectional view taken along the line AA 'shown in FIG. 1 and a partial enlarged view of the drain plate finishing structure. FIG.

One embodiment of the air conditioner according to the present invention includes a first cabinet 100, a second cabinet 200, a driving motor 300, and a concrete pad 400.

The first cabinet 100 includes an inlet 110 into which air flows, a heat exchange unit 120 that exchanges heat with the introduced air, a finishing structure 120 that is positioned below the heat exchange unit 120 and supports a lower portion of the heat exchange unit 120, And a bottom portion 140 constituting the bottom of the cabinet 100. [

In other embodiments, the inlet 110 may be provided in more than one inlet, and may be configured to re-introduce the room air as well as the ambient air, and the number and location on the first cabinet 100 are not limited.

The heat exchanging unit 120 is configured to cool or heat the temperature of the introduced air to a predetermined temperature, and is configured in the form of a coil through which a coolant such as cold water or hot water can pass.

In another embodiment, the heat exchange unit 120 may be provided in more than one. The heat exchange unit 120 may be provided to have various functions such as air cooling, preheating, heating, and temperature correction, and the number and the position on the first cabinet 100 are not limited.

 The finishing structure 130 is preferably positioned below the heat exchange unit 120 and formed to support a lower part of the heat exchange unit 120. The finishing structure 130 supports the heat exchange unit 120 and is configured such that an upper portion thereof is opened so that the condensed water formed by the heat exchange unit 120 can be easily dropped and accommodated in the drain plate 142.

The bottom part 140 constitutes the bottom of the first cabinet 100 and is connected to the drain plate 142 having a tapered cross section at a predetermined angle and the drain plate 142 to discharge the condensed water to one side (Not shown).

The second cabinet 200 includes a discharge port 210 connected to the first cabinet 100 to exchange heat with the introduced air and then to the room, and a blowing fan unit 220 for controlling the flow of air.

And a driving motor 300 for providing a driving force to the blowing fan unit 220 is provided on the outside of the second cabinet 200. In another embodiment, the drive motor 300 may be located inside the second cabinet 200 and is not limited to any one position.

When the first cabinet 100 and the second cabinet 200 are installed in a machine room, a concrete pad 400 having a predetermined thickness for supporting the first cabinet 100 and the second cabinet 200 May be installed.

At this time, the concrete pad 400 can be designed to have a relatively thin thickness because it does not need to consider a separate seal height unlike a conventional concrete pad which is conventionally placed according to the seal height of the oil-trap. For example, while a typical concrete pad is about 300 mm, the concrete pad 400 according to the present invention can be designed to have a thickness of between 150 mm and 200 mm, which is half the thickness of the concrete pad 400, thereby ensuring the stability of the structure.

3, the finishing structure 130 and the bottom 140 according to one embodiment of the present invention will be described in more detail. 3 is a perspective view for explaining an embodiment of the drain plate finishing structure of the present invention.

The finishing structure 130 includes a sealing unit 131 connected to the top of the drain plate 142 and an air induction unit 132 connected to the sealing unit 131.

It is preferable that the sealing unit 131 is hermetically connected in correspondence with the upper edge of the drain plate 142. It is preferable that the sealing unit 131 is hermetically connected to the upper edge of the drain plate 142 so that the condensed water falling from the heat exchange unit 120 can be directly dropped into the drain plate 142.

Here, it is preferable that the open part of the sealing unit 131 is formed to have a predetermined width and thickness so that the heat exchange unit 120 can be stably supported by the sealing unit 131. [ Particularly, it is preferable that the width of the open part of the sealing unit 131 is smaller than that of the heat exchange unit 120, and the thickness is the same or larger.

It is preferable that an opened part of the sealing unit 131 is formed at a position corresponding to the heat exchange unit 120 and that the side where the second cabinet 200 is located on the drain plate 142 is hermetically sealed with the sealing unit 131 It is preferable to be configured to be connected.

The air induction unit 132 is connected to both sides of an open part of the airtight unit 131 to guide the air introduced from the inlet 110 to flow toward the drain plate 142 side. The air induction portion 132 is preferably an L-shaped elbow.

In another embodiment, the air induction portion 132 may be configured to have an extended truncated-shaped end toward the inlet 110. [

The bottom portion 140 further includes a bottom plate 141 constituting a flat surface of the first cabinet 100 and a side portion 143 connected to a side surface of the drain plate 142. The discharge portion 144, through which the condensed water is discharged, is preferably protruded from the side surface portion 143.

Hereinafter, the operation principle of the drain plate finishing structure in the case where the air conditioner is operated according to an embodiment of the present invention will be described.

As the air blowing fan unit 220 is driven, the air contained in the second cabinet 200 is guided to the discharge port 210 and escaped to the outside, and a negative pressure is formed as the air escapes. 1 The air introduced into the cabinet 100 is moved toward the second cabinet 200, and a flow of air is naturally formed.

The pressure of the first cabinet 100 is relatively high and the direction of air flow is constant in the direction from the first cabinet 100 to the second cabinet 200 in the first cabinet 100 where the inlet 110 is located.

The air introduced between the finishing structure 130 and the bottom portion 140 through the open portion of the air induction portion 132 and the sealing unit 131 according to the flow thus formed is supplied to the condensed water accommodated in the drain plate 142 Lt; / RTI >

Since the sealing unit 131 hermetically seals the upper side of the drain plate 142 adjacent to the second cabinet 200, it can not escape to the side of the second cabinet 200 due to the negative pressure. That is, the negative pressure is blocked by the condensed water located below the closing unit 131, and a higher pressure is applied to the condensed water by the air continuously flowing through the open portion of the air induction unit 132 and the closing unit 131 .

Accordingly, the air introduced through the air induction unit 132 moves in the direction a in the drain plate 142 to discharge the condensed water naturally through the discharge unit 144 in the direction b (see an enlarged view of FIG. 2).

According to the present invention, the pressure difference formed by the negative pressure is used to discharge the condensed water from the drain plate finishing structure, and the condensed water can be discharged according to the natural air flow.

100: first cabinet 110: inlet
120: heat exchanger 130: finishing structure
131: sealing unit 132: air induction unit
140: bottom part 141: bottom plate
142: drain plate 143: side surface
144: discharging part 200: second cabinet
210: discharge port 220: blowing fan unit
300: Driving motor 400: Concrete pad

Claims (6)

An inlet through which air flows;
A heat exchange unit for exchanging heat with air introduced through the inlet;
A finishing structure connected to the drain plate provided below the heat exchange unit and the drain plate;
A discharge port through which the heat-exchanged air flows out by the heat exchange unit; And
And a blowing fan unit connected to the discharge port,
The finishing structure includes:
A sealing unit connected to at least a part of an upper edge of the drain plate, and an air induction unit connected to the sealing unit to guide the introduced air to the drain plate side.
Drain plate finishing structure.
The method according to claim 1,
Wherein the open portion includes an open portion and the open portion is formed at a position corresponding to the heat exchange unit so that condensate water falling from the heat exchange unit is received in the drain plate,
Drain plate finishing structure.
3. The method of claim 2,
Wherein the open portion has a predetermined width smaller than that of the heat exchange unit and has a predetermined thickness greater than or equal to that of the heat exchange unit,
Drain plate finishing structure.
3. The method of claim 2,
Wherein the air induction portion is connected to both sides of the open portion,
Drain plate finishing structure.
The method according to claim 1,
Wherein the air induction portion is an L-shaped elbow,
Drain plate finishing structure.
The method according to claim 1,
Further comprising a side portion connected to a side surface of the drain plate and a discharge portion protruding from the side portion.
Drain plate finishing structure.

Images