CN206890670U - Indoor unit of air conditioner - Google Patents

Abstract

An indoor unit of an air conditioner is provided with: a housing having a first suction port at an upper portion and a first discharge port at a lower portion; a blower device provided downstream of the first suction port in the interior of the casing and having a second suction port at an upper portion thereof; a heat exchanger provided downstream of the blower in the interior of the casing and having a plurality of fins and a plurality of heat transfer pipes; an air passage outer chamber provided on a side of the heat exchanger in the casing; a heat pipe housing part provided in the air path outside chamber and housing one end of the heat pipe; an electric component box arranged outside the air path chamber and used for accommodating the control device; and a filter housing that houses a filter, the filter housing being provided between the first suction port and the second suction port, an indoor unit of an air conditioner having an air passage that communicates a space between the first suction port and the second suction port with an air passage outer chamber, and the air passage being provided on a side portion of the filter housing.

Description

Indoor unit of air conditioner

technical field

The utility model relates to an indoor unit of an air conditioner in which an air supply device is arranged on the upstream side of a heat exchanger.

Background technique

Conventionally, an indoor unit of an air conditioner is disclosed that includes a heat exchanger and an air blower inside a housing having a suction port formed at the upper portion and a discharge port formed at the lower portion thereof. The heat exchanger exchanges heat with indoor air, and the air blower is arranged upstream of the heat exchanger to suck in indoor air (for example, refer to Patent Document 1).

In the indoor unit of the air conditioner as in Patent Document 1, in order to perform efficient operation, it is necessary to send the room air sucked in by the air blower to the heat exchanger without leakage. In addition, the conditioned air after heat exchange in the heat exchanger needs to be discharged from the discharge port into the indoor space without leakage. Therefore, the air path from the suction port in the upper part of the case to the discharge port in the lower part of the case is sealed so that air does not leak in the middle of the air path.

In addition, a heat transfer tube housing portion that seals ends of a plurality of heat transfer tubes of the heat exchanger is provided in an air passage outer room on a side of the heat exchanger provided inside the casing. In addition, an electrical component box for accommodating a control board is provided near the heat transfer pipe storage portion of the air duct outer room.

Patent Document 1: Japanese Unexamined Patent Publication No. 2012-37085

However, in the indoor unit of the conventional air conditioner as described above, since high-temperature refrigerant flows through the heat transfer tube during heating operation, the temperature of the heat transfer tube housing portion housing the end of the heat transfer tube rises. Furthermore, since the air passage is sealed, no air flow occurs around the electrical component box, and the heated air remains in a stagnant state. Furthermore, heat is accumulated around the electrical component box, and the temperature rise of the electrical component box is accelerated. In addition, when the indoor unit is operated, the electronic components of the control board arranged in the electrical component box generate heat. Furthermore, in the electric component box, the internal temperature rise is accelerated by the heat generated by the electronic component in addition to the heat from the heat pipe housing. As a result, there is a possibility that the electronic components arranged on the control board may be adversely affected by the influence of heat.

Utility model content

This invention was made|formed in order to solve the said subject, and it aims at providing the indoor unit of the air conditioner which can suppress the temperature rise of the electric component box periphery.

The indoor unit of the air conditioner involved in the utility model is provided with: a casing, the casing has a first suction port on the upper part, and a first discharge port on the lower part; an air supply device, and the air supply device is arranged inside the casing The downstream side of the first suction port in the upper part has a second suction port; the heat exchanger, which is arranged on the downstream side of the air supply device in the interior of the casing, has a plurality of Fins and a plurality of heat pipes; an air passage outer chamber, the air passage outer chamber is arranged on the side of the heat exchanger in the interior of the shell; a heat pipe storage part, the heat pipe storage part is arranged in The air passage outer chamber accommodates one end of the heat pipe; the electrical component box is arranged in the air passage outer chamber and accommodates the control device; and the filter housing part accommodates the filter. The filter housing part is provided between the first suction port and the second suction port, and the indoor unit of the air conditioner has a space between the first suction port and the second suction port. The air passage communicates with the outer chamber, and has the air passage on the side of the filter housing.

According to the indoor unit of the air conditioner related to the utility model, the air passage connecting the suction port of the housing and the suction port of the air supply device with the air passage outer chamber provided with the electrical component box is formed, and the air supply device can be used to The air around the electrical component box is sucked in from this air duct. As a result, accumulation of heat around the electrical component box in the air passage outer chamber can be eliminated, and temperature rise around the electrical component box can be suppressed, thereby suppressing failure of electronic components of the control board disposed in the electrical component box.

Description of drawings

Fig. 1 is a perspective view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention viewed from the front right side.

Fig. 2 is a front view schematically showing the inside of the indoor unit of the air conditioner according to Embodiment 1 of the present invention.

Fig. 3 is a perspective view of the vicinity of the air blower of the indoor unit of the air conditioner according to Embodiment 2 of the present invention.

Fig. 4 is a front view schematically showing the inside of the indoor unit of the air conditioner according to Embodiment 2 of the present invention.

detailed description

Hereinafter, embodiment of this invention is described based on drawing. In addition, this invention is not limited by embodiment demonstrated below. In addition, in the following drawings, the size relationship of each component may differ from the actual situation.

Implementation mode 1.

1 is a perspective view of the indoor unit 100 of the air conditioner according to Embodiment 1 of the present invention viewed from the right side of the front surface, and FIG. 2 schematically shows the indoor unit of the air conditioner according to Embodiment 1 of the present invention. Front view of the interior of the 100. In addition, arrows in FIG. 2 indicate the flow of air. In addition, in FIG. 1 , two air blowers 10 having the same configuration are arranged in a row, but the present invention is not limited to this, and one or three or more air blowers may be provided. In addition, in FIG. 2, only one air blower 10 is illustrated for convenience.

Hereinafter, the configuration of the indoor unit 100 according to Embodiment 1 will be described based on FIGS. 1 and 2 .

The indoor unit 100 supplies air-conditioned air to an area to be air-conditioned, such as a room, by utilizing a refrigeration cycle that circulates a refrigerant. The indoor unit 100 mainly includes: a casing 1 formed with a first suction port 2 for sucking indoor air inside and a first discharge port 3 for supplying conditioned air to an area to be conditioned; an air blower 10 , The air blower 10 is accommodated in the above-mentioned casing 1, sucks indoor air from the first suction port 2, and discharges air-conditioned air from the first discharge port 3; and a heat exchanger 20, which is arranged on the In the air path from the wind device 10 to the first discharge port 3, the refrigerant exchanges heat with the indoor air to generate conditioned air.

Furthermore, an air passage (arrow in FIG. 2 ) communicates within the casing 1 through the above-mentioned components. The first suction port 2 is formed in an upper opening of the casing 1 . In addition, the first discharge port 3 is opened at the lower portion of the casing 1 , more specifically, at the lower side of the front surface portion of the casing 1 . The first discharge port 3 is provided with a wind direction plate 4 in order to send air cooled, heated, dehumidified, etc. by the heat exchanger 20 (hereinafter referred to as conditioned air) to various directions in the indoor space.

The air blower 10 is provided with, for example: a fan 11, which is an axial flow fan, a diagonal flow fan, a cross flow fan, a Sirocco fan, etc.; , and is arranged on the upstream side of the heat exchanger 20 for the fan 11 to be arranged. A second suction port 13 is formed on the top of the blower device 10, and the second suction port 13 sends air to the fan 11, and a second discharge port 14 is formed on the bottom of the blower device 10, and the second discharge port 14 flows to the air blower device 10. The heat exchanger 20 provided downstream of the fan 11 sends air.

In addition, a drive motor (not shown) that drives the fan 11 to rotate is connected to the fan 11 .

The heat exchanger 20 is arranged on the upstream side of the first discharge port 3 and on the downstream side of the air blower 10 . The heat exchanger 20 includes a plurality of aluminum fins 21 stacked at regular intervals, and a plurality of heat transfer tubes 22 penetrating the aluminum fins 21 . The heat transfer pipes 22 are connected to other heat transfer pipes 22 at their ends. In addition, a plurality of heat transfer pipes 22 are provided in order to branch the refrigerant sent from the outdoor heat exchanger (not shown) provided in the outdoor unit (not shown) of the air conditioner into multiple paths, and alleviate the flow caused by the refrigerant. resistance to flow.

In addition, in the side of the heat exchanger 20 in the interior of the casing 1, an air passage outer chamber 30 is provided. In the space outside the air passage up to the outlet 3 , one end of a plurality of heat transfer pipes 22 is accommodated in a heat transfer pipe housing portion 23 provided in the air passage outer chamber 30 .

In addition, you may further provide the heat-transfer-pipe accommodating part which accommodates the other end part of the some heat-transfer pipe 22.

Two pipes 24 are provided at one end of the heat exchanger 20 . The above-mentioned pipes 24 are connected to the outdoor heat exchanger, one pipe 24 is used for the flow of the refrigerant sent from the outdoor heat exchanger to the heat exchanger 20, and the other pipe 24 is used for the flow of the refrigerant sent from the heat exchanger 20 to the outdoor heat exchanger. .

In addition, near the heat transfer pipe housing part 23 of the air passage outer chamber 30, an electrical component box 6 is installed, and the electrical component box 6 accommodates the control board 5 which controls the air blower 10, the wind direction plate 4, and the like.

In such an indoor unit 100, if there is a gap between the heat exchanger 20 and the first discharge port 3, air leakage will occur therefrom. Furthermore, during the cooling operation, the cooled air flows inside the indoor unit 100 , that is, in parts other than the air passage inside the housing 1 . Therefore, there is a possibility that condensation may occur inside the casing 1 due to the temperature difference between the cooled air and the indoor air temperature, causing failure of electronic components, and water droplets may drip from the indoor unit 100 into the indoor space. In addition, during heating operation, the heated air flows through parts other than the air passage inside the casing 1 . Therefore, the temperature rise of the electrical component box 6 is increased, and the temperature of the electronic components of the control board 5 arranged in the electrical component box 6 is also increased. Therefore, there is a possibility of failure of the electronic components due to the influence of heat.

In addition, in order to perform efficient operation, the air blower 10 needs to send the indoor air sucked in from the indoor space to the heat exchanger 20 without leakage. In addition, the conditioned air after heat exchange in the heat exchanger 20 needs to be discharged to the indoor space without leakage.

Therefore, in the indoor unit 100 , it is necessary to seal the air passage from the second suction port 13 to the first discharge port 3 of the air blower 10 so that air does not leak in the middle of the air passage.

However, when the second suction port 13 is formed at the same position in the vertical direction as the first suction port 2, during heating operation, high-temperature refrigerant flows through the heat transfer pipes 22, so that a plurality of heat transfer pipes 22 are accommodated. The temperature of the heat transfer tube housing part 23 at the end part of the tube 22 rises. And since the air path from the first suction port 2 on the upper part of the casing 1 to the first discharge port 3 on the lower part of the casing 1 is sealed, the flow of air does not occur around the electrical component box 6, and the heated air is in a The state of staying. Furthermore, heat is accumulated around the electrical component box 6, and the temperature rise of the electrical component box 6 is accelerated.

Also, a control board 5 for controlling the air blower 10 and the wind direction plate 4 is housed in the electrical component box 6, and when the indoor unit 100 is operated, electronic components (not shown) arranged on the control board 5 generate heat. In addition, in the electrical component box 6 , in addition to the heat from the heat transfer pipe housing portion 23 , the internal temperature rise is accelerated by the heat generated by the electronic components. As a result, there is a possibility that electronic components arranged on the control board 5 may fail due to the influence of heat.

Therefore, in the indoor unit 100 according to Embodiment 1, the second suction port 13 is formed at a position different from the first suction port 2 , specifically, the second suction port 13 is formed at the first suction port 2 . downstream side of . Furthermore, an air passage 31 is formed which communicates the space between the first suction port 2 and the second suction port 13 with the air passage outer chamber 30 in which the electric component box 6 is installed.

By forming this air passage 31 , the air around the electrical component box 6 in the air passage outer chamber 30 can be sucked in by the air blower 10 from the air passage 31 . As a result, heat accumulation around the electrical component box 6 in the air passage outer chamber 30 can be eliminated, and temperature rise around the electrical component box 6 can be suppressed, thereby preventing failure of electronic components of the control board 5 disposed in the electrical component box 6 .

In addition, the air in the air passage outer chamber 30 is prevented from flowing from the outside of the air passage 31 to the air passage from the second suction port 13 to the first discharge port 3 of the blower device 10 .

In summary, according to the indoor unit 100 according to Embodiment 1, it is possible to perform efficient operation, suppress failure of electronic components, and suppress dew condensation during cooling operation. Therefore, it is possible to provide a high-quality indoor unit 100 for an air conditioner.

Implementation mode 2.

Hereinafter, Embodiment 2 of the present invention will be described, and the (partial) description will be omitted for content that overlaps with Embodiment 1, and the same reference numerals will be attached to the same or corresponding parts as Embodiment 1.

3 is a perspective view of the surrounding area of the air blower 10 of the indoor unit 101 of the air conditioner according to Embodiment 2 of the present invention, and FIG. 4 schematically shows the interior of the air conditioner according to Embodiment 2 of the present invention. Front view of the interior of machine 101. In addition, arrows in FIG. 4 indicate the flow of air. In addition, in FIG. 3, although two blower apparatuses 10 of the same structure are arranged in a row, it is not limited to this, One may be provided, and three or more may be provided. In addition, in FIG. 4, only one air blower 10 is illustrated for convenience.

Hereinafter, the configuration of the indoor unit 101 according to Embodiment 2 will be described based on FIGS. 3 and 4 .

The indoor unit 101 of the air conditioner according to Embodiment 2 is provided with a filter housing portion 40 between the first suction port 2 and the second suction port 13 . Furthermore, a filter housing case 41 is attached to the filter housing part 40, and the filter housing case 41 accommodates a filter 42 therein. Here, the filter 42 is used to prevent indoor dust and the like from entering the interior of the indoor unit 101 and adhering to the heat exchanger 20 .

The filter housing case 41 mounted on the upstream side of the second suction port 13 is mounted so as to be easily attached to and detached from the filter housing portion 40 during maintenance to remove dust and the like adhering to the filter 42 .

In addition, a vent hole 44 is formed on the side of the filter housing part 40, and the vent hole 44 communicates the filter housing part 40 with the air passage outer chamber 30 in which the electrical component box 6 is installed. A vent hole 43 is also formed on the side portion, and the vent hole 43 communicates between the filter housing case 41 and the air passage outer chamber 30 . The plurality of ventilation holes 43 and 44 are formed as shown in FIG. 3 , whereby more air in the air passage outer chamber 30 around the electric component box 6 can be taken in by the air blower 10 .

In addition, the ventilation holes 43 and 44 correspond to the "air path" of the present invention.

In addition, in FIG. 3 , the case where an axial flow fan is used as the fan 11 of the air blower 10 is described as an example, but in this case, by making the ventilation hole 44 formed on the side of the filter housing part 40 The position is not located near the second suction port 13, but far away from the second suction port 13, so that the generation of wind howling sound of the air blower 10 can be suppressed. In addition, in FIG. 3 , the fan housing part 12 and the filter housing part 40 are formed integrally, but they may be provided independently of each other.

As described above, in the indoor unit 101 according to the second embodiment, the filter housing part 40 is provided between the first suction port 2 and the second suction port 13, and the filter housing part 40 is attached to the side part of the filter housing part 40 and the Ventilation holes 43 and 44 communicating with the air passage outer chamber 30 in which the electrical component box 6 is installed are formed in the side portions of the filter housing case 41 of the storage unit 40 .

By forming these ventilation holes 43 , 44 , air around the electrical component box 6 can be sucked in by the air blower 10 through the ventilation holes 43 , 44 . As a result, accumulation of heat around the electrical component box 6 can be eliminated, and temperature rise around the electrical component box 6 can be suppressed, thereby suppressing failure of electronic components of the control board 5 arranged in the electrical component box 6 .

As mentioned above, according to the indoor unit 101 which concerns on this Embodiment 2, it can perform highly efficient operation, and can suppress the malfunction of an electronic component, and can suppress dew condensation during cooling operation. Therefore, it is possible to provide the indoor unit 101 of a high-quality air conditioner.

In addition, in this Embodiment 2, the filter storage case 41 in which the filter 42 is accommodated is attached detachably to the filter storage part 40, but it is also possible to form the filter 42 directly with It is detachably attached to the structure of the filter accommodating part 40. In this case, only the vent holes 44 may be formed.

Explanation of reference signs:

1: shell; 2: first suction port; 3: first discharge port; 4: wind direction plate; 5: control board; 6: electrical component box; 10: air supply device; 11: fan; 12: fan storage part; 13: Second suction port; 14: Second discharge port; 20: Heat exchanger; 21: Aluminum fin; 22: Heat transfer pipe; 23: Heat transfer pipe storage part; 24: Piping; 30: Air duct outer chamber; 31 : air duct; 40: filter storage part; 41: filter storage housing; 42: filter; 43: ventilation hole; 44: ventilation hole; 100: indoor unit; 101: indoor unit.

Claims (1)

1. a kind of indoor set of air conditioner, it is characterised in that possess：

Shell, the shell have the first suction inlet on top, have first discharge port in bottom；

Air-supply arrangement, the air-supply arrangement is arranged at the downstream of first suction inlet in the inside of the shell, upper Portion has the second suction inlet；

Heat exchanger, the heat exchanger are arranged at the downstream of the air-supply arrangement in the inside of the shell, have more Individual fin and multiple heat conducting pipes；

Wind path mistress, the wind path mistress are arranged at the side of the heat exchanger in the inside of the shell；

Heat conducting pipe incorporating section, the heat conducting pipe incorporating section are arranged at the wind path mistress, store an end of the heat conducting pipe；

Electric part box, the electric part box are arranged at the wind path mistress, store control device；And

The filter incorporating section of filter is stored, the filter incorporating section is arranged on first suction inlet and inhaled with described second Between entrance,

The indoor set of the air conditioner has the space between first suction inlet and second suction inlet and the wind The wind path of road mistress connection,

And the sidepiece in the filter incorporating section has the wind path.