CN100491845C - air conditioner - Google Patents

Abstract

An air conditioner with leakage-resistant part between air pilot unit and perforated plate has an air pilot unit for piloting air upward, a perforated plate combined with said air pilot unit to form a suked air channel, and a leakage-resistant part consisting of the leakage-resistant ribs and slots formed on said air pilot unit and perforated plate.

Description

air conditioner

technical field

The present invention relates to an air flow control part of an air conditioner, and more particularly, to an air conditioner in which a leakage preventing portion is formed at a joint portion of an air guide forming a suction air flow path and an orifice plate.

Background technique

Generally speaking, an air conditioner is installed in a space such as a vehicle, or an office, or a living room for cooling/heating, or installed on a wall for indoor cooling/heating, and uses a compressor-outdoor heat exchange The refrigerator-expansion valve-indoor heat exchanger constitutes a refrigeration cycle system.

An air conditioner is generally composed of an outdoor side (outdoor unit) installed outdoors and an indoor side (indoor unit) installed indoors. In a refrigeration device, the outdoor side is called a heat release side, and the indoor side is called a heat absorption side. An outdoor heat exchanger and a compressor are installed on the outdoor side, and an indoor heat exchanger is installed on the indoor side.

Air conditioners can be broadly classified into a split type air conditioner in which the indoor side and the outdoor side are separately installed, and an integrated type air conditioner in which the indoor side and the outdoor side are integrally formed. Moreover, split air conditioners can be divided into cabinet type, wall-mounted type, and ceiling type according to the installation form.

Integrated air conditioners include window air conditioners and recessed air conditioners installed in the wall. In the window type air conditioner, the indoor side is formed around the window, and the outdoor side is formed outdoors.

Fig. 1 is a schematic diagram of an exploded structure of an air conditioner in the prior art.

The internal structure of the integrated air conditioner is shown in the figure, the bottom surface of the air conditioner is formed by the bottom panel (1), and the front grille (3) is provided on the indoor side front of the bottom panel (1). The front grille (3) forms the front appearance of the air conditioner. Actually the front grille (3) is installed in front of the casing (30) described later.

In this way, on one side of the front grille (3), air that needs to be adjusted in the space (indoor) flows into the air intake portion (3i) inside the air conditioner, and on the other side, the air that is heat-exchanged inside the air conditioner is discharged to the room again. exhaust part (3e). Furthermore, an air intake grille (4) is provided on the air intake portion (3i). There is a control panel part (3c) for operating the air conditioner at the lower part of the exhaust part (3e).

An indoor heat exchanger (7) is arranged inside the front grille (3). The indoor heat exchanger (7) is to exchange heat between the air sucked through the front grille (3) suction part (3i) and the working fluid of the air conditioning system, more precisely, it is installed on the air guide (9 )superior.

The internal structure of the air guide (9) equipped with the indoor heat exchanger (7) will be described below.

The through hole (10) through which the air passes through the indoor heat exchanger (7) is formed in the air guide (9), and an exhaust guide is formed at the position corresponding to the exhaust part (3e) of the front grille (3) (9e). The bottom surface of the air guide (9) is formed with a drainage structure (9') for discharging condensed water produced by the indoor heat exchanger (7).

A volute (11) combined with it is provided behind the air guide (9). A flow guide surface (12) is formed on the inner surface of the volute (11) to guide the airflow formed by the cross-flow fan (19).

Moreover, a control box (14) is provided on the bottom panel (1) corresponding to the front grille (3) control panel part (3c), and the control box (14) is equipped with various electronic components for controlling the air conditioner. The front end of the control box (14) connects the bottom panel (1) with 2 screws, and its rear end is fixed on the air guide (9) with screws.

The back of the volute (11) is provided with a dividing plate (15) for separating the indoor and outdoor sides of the air conditioner. The partition plate (15) separates the indoor side and the outdoor side of the air conditioner, so that the indoor environment and the outdoor environment will not be affected by each other. Moreover, a power line hole (16) is formed on the upper end side of the partition plate (15).

In the rear end of the dividing plate (15), that is, in the outdoor side, the motor support (18) is installed on the bottom panel (1), and the motor (17) is installed thereon. The shafts of the motor (17) protrude toward the indoor side and the outdoor side respectively, and one shaft passes through the partition plate (15) and protrudes into the indoor volute (11). A cross-flow fan (19) is connected to the shaft protruding from the indoor side. The effect of the cross-flow fan (19) is to discharge the outside air from the exhaust guide (9e) to the room through the indoor heat exchanger (7) after being sucked in.

The outdoor side shaft of the motor (17) is connected with a blower fan (21). The blower fan (21) sucks the outdoor air to exchange heat when passing through the outdoor heat exchanger of the air conditioner.

Furthermore, an outer cover (23) is provided on the outdoor side to guide the airflow formed by the blower fan (21). Such an outer cover (23) is formed with a through hole (23) for setting the blower fan (21). Symbol 25 in the accompanying drawings is to form the cover above the outer cover (23). And symbol 25 is to connect air guide (9) and outer cover (23) upper end among the accompanying drawings, make the supporting plate that installation state is firmer between them.

The outdoor heat exchanger (27) is arranged on the outermost outside of the outdoor side of the bottom panel (1). The outdoor heat exchanger (27) is to exchange heat between the air sucked in from the outside and the working fluid.

Furthermore, in order to cover various components provided on the bottom panel (1), the air conditioner is further provided with an organic case (30). The casing (30) is connected and installed on the bottom panel (1), and closes the two sides and the upper end of the air conditioner.

Although not shown, a compressor and an expansion valve, which are components of the air conditioning system, are provided on the outdoor side.

In the integrated air conditioner constructed in this way, the part corresponding to the indoor side faces the space where the conditioned air is required, and the part corresponding to the outdoor side faces outdoors.

The operation of the air conditioner during cooling is explained below.

If the air conditioner drives, the air conditioning system works, and the motor (17) rotates the cross-flow fan (19) and the blower fan (21). On the indoor side, in the space where the air needs to be conditioned, the air flows in through the suction grill (4) and the suction part (3i), and moves to the indoor heat exchanger (7). The air passing through the indoor heat exchanger (7) exchanges heat with the working fluid to lower the temperature.

Due to the rotation of the cross-flow fan (19), the air after heat exchange moves toward the cross-flow fan (19) through the through hole (10) of the air guide (9). And, after the air is discharged from the cross-flow fan (19), it moves to the exhaust guide (9e) along the inside of the volute (11). The air moved to the exhaust guide (9e) is discharged into the space where conditioned air is required through the exhaust portion (3e) of the suction grille (4).

Also, on the outdoor side, the working fluid that receives heat from the indoor heat exchanger (7) discharges heat to the outside. That is, outside air is sucked into the outdoor side of the air conditioner by the blower fan (21), and after being guided by the outer cover (23), it exchanges heat with the working fluid when passing through the outdoor heat exchanger (27), and then releases heat to the outside.

However, the air conditioner of the prior art has the following problems.

In the air conditioner of the prior art, after the sucked air flows into the air guide (9), when passing through the volute (11), the flow path is changed and naturally flows into the discharge part (3e). At this time, a flow path capable of guiding the suction air is formed by simply combining the air guide (9) and the volute (11).

Since the air guide (9) and the volute (11) do not have additional structures or devices, but are combined by simple surface contact, so at the junction of the air guide (9) and the volute (11), A phenomenon in which some air leaks due to vibrations or external influences during operation.

In addition, if leakage occurs at the junction of the air guide (9) and the volute (11), the intake air will be lost when the intake air flows, so there is a fatal problem of lowering the working efficiency of the air conditioner.

Contents of the invention

The present invention is proposed in order to solve the disadvantages of the prior art, and its object is to provide a leakage prevention part capable of preventing the leakage of the suction air from being formed on the joint portion of the air guide forming the flow path of the suction air and the orifice plate. air conditioner.

In order to achieve the above object, the present invention includes an outdoor heat exchanger and a compressor installed on the outdoor side, an indoor heat exchanger installed on the indoor side, and an air conditioner provided with an indoor fan installation hole formed on the left and right sides that guide the suction air upward. The air guide, the guide rib protruding toward the front part of the air guide, the orifice plate formed in front of the air guide, the through holes for guiding the suction air corresponding to the installation holes of the indoor fan are formed in pairs on the left and right, combined in The air guide and the exhaust guide that guides the air on the upper part of the orifice plate, and the leakage prevention part that prevents the air that flows into the air guide from leaking through the orifice plate, and a protruding and formed front center portion of the air guide that divides the front into The left and right partition plates on the left and right sides form leakage prevention grooves to prevent leakage of inhaled air at the ends, and are combined with leakage prevention ribs protruding to a certain height between the through holes on the back of the orifice plate.

In the above-mentioned air conditioner, the leakage prevention groove is formed in a stepped shape along the ends of the left and right partition plates.

As described above, in the air conditioner of the present invention, a leakage prevention groove is formed at the end of the edge of the air guide, and a leakage prevention rib is formed on the back of the hole corresponding to this, and formed when the air guide and the orifice plate are combined. When the air flow path is sucked in, the leakage prevention groove and the leakage prevention rib are combined to form the leakage prevention part.

Moreover, the air flowing into the air guide through the through hole of the orifice flows upward along the inner peripheral surface inside the air guide. The air flowing inside leaks to the outside.

Therefore, all the intake air flowing in through the through holes of the orifice plate is guided to the exhaust guide through the air guide, so that there is an effect of improving the performance and efficiency of the air conditioner.

In addition, the orifice plate and the air guide are not only connected by the surface contact of the leakage prevention groove and the leakage prevention rib, but also the screw connection part of the orifice plate screw connection hole and the air guide is fixed with screws.

Therefore, there is also an effect of preventing air leakage from being caused by vibrations during operation of the air conditioner or movement between the air guide and the orifice due to external factors.

Description of drawings

Fig. 1 is a schematic diagram of an exploded structure of an air conditioner in the prior art.

Fig. 2 is a schematic diagram of the appearance structure of the air conditioner of the present invention.

Fig. 3 is a schematic diagram of the exploded structure of the air conditioner of the present invention.

Fig. 4 is a schematic diagram of an exploded structure constituting the shape of the orifice plate and the air guide in the present invention.

Fig. 5 is a rear structural schematic diagram of the orifice plate of the air conditioner of the present invention.

Fig. 6 is an exploded schematic view of the combination structure constituting the leakage prevention part of the present invention.

Fig. 7 is a schematic diagram of the form and structure of the combination of the orifice plate and the air guide in the present invention.

Explanation of the symbols of the main parts of the drawings:

100: Bottom panel 200: Front grille

210: Front air intake 215: Side air intake

220: Indoor exhaust port 230: Exhaust port door

260: Display 300: Air guide

302: Guide rib 304: Leakage prevention groove

306: Screw fixing part 310: Left and right partition

312: Indoor fan installation hole 320: Indoor base

330: Leakage prevention part 350: Exhaust guide

380: Control box 400: Indoor heat exchanger

410: Orifice plate 412: Through hole

414: Leak prevention rib 416: Screw joint hole

420: Indoor fan 450: Fan motor

452: Central axis 460: Outdoor fan

500: outer cover 550: outdoor heat exchanger

560: compressor 600: casing cover

620: Installation guide 700: Chassis.

Detailed ways

The present invention will be specifically described below with reference to the accompanying drawings and embodiments.

Fig. 2 is a schematic diagram of the appearance structure of the air conditioner of the present invention. As shown in the figure, the air conditioner forms a roughly hexahedron shape, including a front grille (200) forming a front appearance, a casing (700) forming a side and rear outline, and a casing cover (600) forming an upper appearance.

Fig. 3 is a schematic diagram of the exploded structure of the air conditioner of the present invention. As shown in the figure, the upper surface of the bottom panel (100) constituting the bottom surface of the air conditioner is divided into an indoor side and an outdoor side, and various components are installed thereon. First, a front grille (200) is provided at the front of the indoor side.

The front grille (200) forms the front appearance of the air conditioner, forming a curved arc forward. That is, the front central part curves and protrudes a part forward.

The lower end of the front grille (200) is formed with a front suction port (210) for sucking the air in the air-conditioning space to the inside of the air conditioner room, and side suction ports (215) are formed on both sides of the front grille (200).

An indoor exhaust port (220) is formed on the upper end of the front grille (200) to redischarge the heat-exchanged air to the air conditioning space, and an indoor exhaust port (220) sliding up and down is provided in front of the indoor exhaust port (220) (220) simultaneously, selectively open and close the exhaust port door (230) of the indoor exhaust port (220).

The bottom panel (100) is formed with an air guide (300) that becomes an air flow path sucked from the room, and the indoor chassis (320) is integrally formed at the lower end of the air guide (300), and the indoor chassis (320) It has a shape that is vertically bent from the lower end of the air guide (300) and protrudes forward, is formed to correspond to the front end of the bottom panel (100), and is fixed on the bottom panel (100).

An exhaust guide (350) is formed on the top of the air guide (300) to guide the air discharged from the indoor fan (420) to the indoor exhaust port (220) on the upper part of the front grille (200). Moreover, a control box (380) for controlling the air conditioner is straddled above and on the right side of the exhaust guide (350).

In addition, an indoor heat exchanger (400) for exchanging heat with indoor air is provided in front of the air guider (300). An orifice plate (410) combined with the air guide (300) is arranged between the indoor heat exchanger (400) and the air guide (300). The function of the orifice plate (410) is to guide the air after heat exchange in the indoor heat exchanger (400) to the air guide (300).

An indoor fan (420) is arranged inside the air guide (300) to provide the motive force for indoor air flow. The indoor fans (420) are formed in pairs, one on each of the left and right sides. That is, the indoor fans (420) are respectively located on the indoor fan installation holes (312) formed on the left and right of the air guider (300).

The rear side of the indoor fan (420) is provided with a fan motor (450). The front end of the central shaft (452) of the fan motor (450) is inserted into the center of the indoor fan (420), and the rear end is inserted into the center of the outdoor fan (460). Therefore, the fan motor (450) provides rotational power to the indoor fan (420) and the outdoor fan (460).

Behind the air guide (300), an outer cover (500) for guiding the air flow outside the room is arranged at a certain distance. The inside of the cover (500) is provided with an outdoor fan (460) for forcedly blowing outdoor air and exchanging heat.

An outdoor heat exchanger (550) is arranged at the rear end of the bottom panel (100) corresponding to the rear side of the outer cover (500). The outdoor heat exchanger (550) exchanges heat between the working fluid in the heat exchange cycle and the air sucked in from the outside.

In addition, a compressor (560) is provided on the bottom panel (100) on the outdoor side to compress the working fluid constituting the heat exchange cycle to high temperature and high pressure.

As described above, the rear and side surfaces of the air conditioner are formed by the casing (700), and the upper surface of the air conditioner is formed by the casing cover (600) detachable from above. The casing (700) and the casing cover (600) close the components and form an air flow path inside the air conditioner.

Fig. 4 is a schematic diagram of an exploded structure constituting the shape of the orifice plate and the air guide in the present invention, and Fig. 5 is a schematic rear view of the orifice plate of the air conditioner of the present invention.

As shown in the drawing, an air guide (300) is formed on the bottom panel (100) to partition the indoor side and the outdoor side and guide the air flow inside the room.

In addition, left and right partition plates (310) are formed on the front central portion of the air guide (300). That is, the left and right partition plates (310) protrude forward from the front center of the air guide (300), and divide the front of the air guide (300) into left and right sides.

In addition, indoor fan installation holes (312) are formed on left and right sides of the air guider (300) for respectively installing indoor fans (420). The indoor fan installation hole (312) is formed corresponding to the size of the indoor fan (420), and is formed with a guide rib (302) protruding toward the front part of the air guide (300).

Leakage preventing grooves (304) for preventing leakage of suction air are formed at the ends of the left and right partition plates (310) and the guide ribs (302) of the air guide (300). The leakage prevention groove (304) is formed in a stepped shape along the ends of the left and right partition plates (310) and the guide ribs (302).

A screw fixing part (306) is formed on the upper end of the guide rib (302) on one side of the air guide (300), so that when it is combined with the orifice plate (410), the screw can pass through the orifice plate (410) to fix the orifice plate (410).

An orifice plate (410) is formed in front of the air guide (300), and the air guide (300) and the orifice plate (410) are combined with each other to form a flow path for sucked air. Through-holes (412) corresponding to the air guide (300) and the installation hole (312) of the indoor fan are respectively formed in pairs on the orifice plate (410).

The back side of the orifice plate (410), except the upper and lower side surfaces, and the central part between the through holes (412) are formed with leakage preventing ribs (414) protruding upward to a certain height. Also, leakage preventing ribs (414) are formed on both edges below the back surface of the orifice plate (410) and on the left and right partition plate (310) sides.

The leakage prevention rib (414) and the leakage prevention groove (304) are combined to form a leakage prevention part (330) that prevents leakage of air flowing inside the air guide (300).

In addition, a screw joint hole (416) is formed on one side above the orifice plate (410), through which the screw is fixed when combined with the air guide (300). The screw joint hole (416) and the screw joint part (306) of the air guide (300) are fixed by bolts, thereby further strengthening the combination of the air guide (300) and the orifice plate (410).

Fig. 6 is an exploded schematic view of the combination structure constituting the leakage prevention part of the present invention, and Fig. 7 is a schematic view of the form structure of the combination of the orifice plate and the air guide in the present invention.

As shown, the leakage prevention rib (414) corresponds to the stepped portion of the leakage prevention groove (304) formed on the air guider (300).

Therefore, when the air guide (300) is combined with the orifice plate (410), the leakage prevention groove (304) and the leakage prevention rib (414) at the corresponding position are in surface contact with each other to form the leakage prevention part (330) ).

If the leakage prevention rib (414) and the leakage prevention groove (304) are in surface contact and combined, the junction of the air guide (300) and the orifice (410) is formed by the leakage prevention rib (414) and the leakage prevention groove (304) Form the leakage prevention part (330) of the structure.

In addition, the leakage preventing part (330) welds the junction of the air guide (300) and the orifice (410) in order to prevent the air flowing into the air guide (300) from leaking through the orifice (410).

In addition, in the leakage prevention part (330), the leakage prevention rib (414) is formed on one side of the air guide (300), and the leakage prevention groove (304) is correspondingly formed on the side of the orifice plate (410), so it is possible to carry out A combination of mutual surface contact.

The present invention constituted in this way, and the operation of its embodiment will be described below.

In order to start the air conditioner of the present invention, if the current is input to the air conditioner, and the display (260) is operated according to the intended use, the control box (380) controls the components inside the air conditioner to drive the air conditioner.

If the air conditioner is driven, the fan motors (450) on the left and right sides are running, so the indoor fan (420) and the outdoor fan (460) that are connected to the central axis (452) of the fan motor (450) rotate separately. In addition, the compressor (560) is driven to compress the working fluid to a high temperature and high pressure to perform a heat exchange cycle.

Moreover, the indoor fans (420) respectively installed on the left and right sides are driven, and the air in the air-conditioning space is sucked through the front suction port (210) and the side suction port (215), and flows into the air after heat exchange through the heat exchanger (400). To the inside of the indoor side.

The air whose temperature becomes relatively low due to heat exchange in the heat exchanger (400) is sucked in front of the indoor fan (420). At this time, as shown in FIG. 3 , indoor air flows in through the through-holes ( 412 ) formed in pairs in the orifice plate ( 410 ).

The air suctioned by the indoor fan (420) flows into the air guide (300) through the through holes (412) of the orifice plate (410). The air flowing into the air guide (300) is discharged toward the circumferential direction of the indoor fan (420) along with the rotation of the indoor fan (420).

As mentioned above, the air discharged to the circumferential direction of the indoor fan (420) is guided by the flow paths formed by the guide ribs (302) on both sides of the air guide (300) and the left and right partition plates (310), and flows to the air guide. The inside of the exhaust guide (350) arranged above the device (300). And, the air flowing into the exhaust guide (350) is guided forward and exhausted forward through the indoor exhaust port (220).

That is, the air that flows into the upper side through the air guide (300) changes direction and is discharged forward, but after passing through the exhaust guide (350), it is discharged to the air through the indoor exhaust port (220) of the front grille (200). Adjust the space.

At this time, the orifice plate (410) is combined with the air guide (300) to form the flow path inside the air guide (300), and the air flowing in through the through hole (412) of the orifice plate (410) is driven by the indoor fan. The inner peripheral surface of the air guide, that is, the surface formed by the left and right partition plates (310) and the guide ribs (302), is guided and discharged.

Moreover, the leakage prevention groove (304) formed on the guide rib (302) of the air guide (300) and the corresponding position, that is, the leakage prevention rib (414) formed on the back side of the orifice plate (410) are in surface contact to form a leakage. The prevention part (330), the leakage prevention part (330) welds its joint part when the orifice plate (410) and the air guide (300) air conditioner are combined.

Therefore, the leakage prevention part (330) prevents leakage of the air flowing along the inner peripheral surface of the air guide (300), and guides all the intake air flowing into the air guide (300) into the exhaust guide (350).

The scope of the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make many changes based on the present invention within the same technical scope.

For example, in the embodiment of the present invention, two through-holes (412) are formed in the orifice plate (410) and combined with the air guide (300) to form a flow path, however, if necessary, the through-holes (412) There can be one or more than two, and the orifice plate (410) can also be combined with the air guide (300) to generate a flow path accordingly.

Claims (2)

1. An air conditioner, comprising an outdoor heat exchanger and a compressor arranged on the outdoor side, an indoor heat exchanger arranged on the indoor side, and the air conditioner is provided with a left side and a right side to guide the suction air upward to form an indoor fan installation hole The air guide, the guide rib protruding toward the front part of the air guide, the orifice plate formed in front of the air guide, the through holes for guiding the suction air corresponding to the installation holes of the indoor fan are formed in pairs on the left and right, combined in The air guide and the exhaust guide that guides the air on the upper part of the orifice plate, and the leakage prevention part that prevents the air flowing into the air guide from leaking through the orifice plate are characterized in that the front central part of the air guide is protruded and formed with a front It is divided into left and right partition plates on the left and right sides. Leakage prevention grooves are formed at the ends of the left and right partition plates to prevent the leakage of inhaled air. The leakage prevention grooves and the through holes on the back of the orifice plate form a corresponding combination of leakage prevention ribs protruding to a certain height. 2. The air conditioner according to claim 1, wherein the leakage prevention groove is formed in a stepped shape along the ends of the left and right partition plates.

Images