CN100441962C - Indoor unit of air conditioner - Google Patents

Abstract

The present invention relates to the invention of an indoor unit of an ultra-thin air conditioner which has a front panel partition and an opening holding device, and an air filter is easy to disassemble. It includes a casing (52) forming an appearance; a front frame (54) formed in front of the casing (52); an air filter (60) that can be detached from the front frame (54) for filtering foreign matter in the air; The front of the front frame (54) is arranged at a certain interval and forms the front panel (56) of the front appearance. In addition, a short connecting rod (82) whose one end is connected to the front frame (54) is provided; a long connecting rod (84) whose one end is connected to the front panel (56); is used to control the angle formed by the two within a certain range The opening holding device (80) formed by the inner link mechanism (85) keeps the open state of the front panel (56). According to the present invention structured as above, the replacement operation of the air filter can be easily realized.

Description

Indoor unit of air conditioner

technical field

The invention belongs to the technical field of air conditioning, and more specifically relates to the invention of an indoor unit of an ultra-thin air conditioner which sucks air in front and discharges it downward and sideways, and whose air filter is easy to detach.

Background technique

Fig. 1 is an appearance diagram of an indoor unit of a general ultra-thin air conditioner. Fig. 2 is a diagram showing the state of air flow in the indoor unit of the air conditioner in the prior art. Fig. 3 is a state diagram of replacing an air filter in an air conditioner indoor unit in the prior art.

As shown in the figure, the casing (10) forms the appearance of the indoor unit. The above casing (10) is in a flat rectangular shape, and generally its length in the up-down and left-right directions is relatively greater than the front-rear width. In addition, a front panel (12) is arranged on the front of the casing (10).

The rear lower end of the front panel (12) protrudes rearward to form a hanging part (not shown), and the above-mentioned casing (10) is formed with a hanging groove (14) for hanging the above-mentioned hanging part. When the above-mentioned indoor unit is working, the rear lower end of the above-mentioned front panel (12) will be opened from the above-mentioned casing (10), so that the outside (indoor space) air flows into the interior of the indoor unit.

The front of the above-mentioned casing (10) is provided with an air filter (20) for filtering foreign matter in the air sucked into the interior of the indoor unit. The above-mentioned air filter (20) is detachably installed on the casing (10). When the user When the above-mentioned air filter (20) needs to be replaced, the lower end of the above-mentioned front panel (12) is lifted upwards and the replacement operation is performed.

The two sides and the bottom of the above-mentioned machine casing (10) are respectively formed with discharge ports (30) for discharging the air flowing in from the interior of the indoor unit, and the discharge ports (30) are respectively provided with discharge vanes for selectively shielding the discharge ports (30). (32).

The inside of the above-mentioned casing (10) is provided with many components such as a heat exchanger, an indoor fan, and a fan motor for sucking air heat exchange. (not shown)

When the indoor unit with the above structure performs cooling operation, a relatively low-temperature refrigerant flows into the heat exchanger disposed inside the indoor unit. When the indoor fan rotates with the driving of the fan motor, the indoor air will flow in through the gap between the casing (10) and the upper end of the front panel (12).

That is, the front panel (12) is driven by a motor (not shown in the figure), and its upper end and lower end are axially opened to a certain part forward, and the indoor air passes through the gap formed between the front panel (12) and the casing (10). Gap inflow.

The air flowing into the interior of the indoor unit as described above passes through the heat exchanger into which the low-temperature refrigerant flows, is cooled, and then is discharged into the indoor space through the discharge port (30). At the same time, the refrigerant that exchanges heat with the indoor air in the heat exchanger will be supplied to the outdoor unit (not shown in the figure).

However, the indoor unit of the air conditioner in the prior art as described above has the following problems.

In the above-mentioned indoor unit, indoor air will flow in through the space between the upper end of the front panel (12) and the casing (10), which is not convenient for the circulation of the air. In addition, in order to make the upper end of the front panel (12) open to its front, an additional motor (not shown) needs to be provided.

At the same time, there are difficulties in the replacement operation of the above-mentioned air filter (20). That is, as shown in Figure 3, in order to replace the air filter (20), the user lifts the lower end of the above-mentioned front panel (12) with one hand (left hand), and then holds the air filter (20) with the other hand (right hand). ) to complete the disassembly, so the replacement operation is troublesome.

And, after cleaning above-mentioned air filter (20), also need to use both hands simultaneously when clamping air filter (20), so its operation is more difficult.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the object of the present invention is to make the front panel be separated from the cabinet by a certain distance to facilitate air intake.

Another object of the present invention is to maintain the open state of the front panel to facilitate the detachment and detachment of the air filter.

In order to achieve the above-mentioned purpose, the technical solution structure of the present invention includes a casing forming an appearance; a front frame formed in front of the above-mentioned casing; an air filter that can be detached and arranged on the above-mentioned front frame for filtering foreign matter in the air; the above-mentioned front The front of the frame is arranged at certain intervals to form a front panel of the front appearance. The air sucked into the indoor unit through the gap between the front panel and the front frame is arranged to be discharged through the lower surface and the side of the casing.

In addition, one side of the above-mentioned front panel is provided with an open holding device for maintaining the open state of the front panel.

The above-mentioned opening holding device is connected to the short link of the above-mentioned front frame by one end; the long link of the above-mentioned front panel is connected to one end; the link used to control the angle formed by the above-mentioned short link and the long link within a certain range. Rod mechanism and other parts.

The above-mentioned link mechanism includes a hinge shaft for hingedly connecting the above-mentioned short connecting rod and the long connecting rod; a control pin arranged on one side of the above-mentioned hinge shaft at a distance; a pin guide groove slidingly inserted into one end of the control pin; It is characterized by the compression spring part that one end is closely attached to the above-mentioned pin introduction groove.

Here, the above-mentioned pin introduction grooves are characterized by being formed with a greater depth along one side.

The upper end of the above-mentioned front panel is hingedly connected to the above-mentioned front frame, and the lower end is detachably mounted on the above-mentioned front frame.

In addition, a hanging part is provided at the rear lower end of the front panel, and an insertion part for connecting the hanging part is provided on the front frame.

According to the present invention structured as above, the replacement operation of the air filter can be easily realized.

Advantages and positive effects: As described in detail above, in the air conditioner indoor unit of the present invention, the front panel is arranged on the front frame at a certain distance.

Thus, when the air conditioner is in operation, no additional suction opening for air intake will need to be opened. In addition, air can flow in through the upper and lower ends and both sides of the front panel to achieve the purpose of smooth air circulation.

In addition, in the present invention, an opening and holding device for opening the above-mentioned front panel is additionally provided, and the open state of the front panel will be automatically maintained by the above-mentioned opening and holding device without the need for the user to hold and hold the front panel by hand.

As a result, the user can perform operations with both hands when replacing the air filter, thereby realizing the purpose of convenient operation.

Description of drawings

Fig. 1 is an external view of an indoor unit of a general ultra-thin air conditioner.

Fig. 2 is a diagram showing the state of air flow in the indoor unit of the air conditioner in the prior art.

Fig. 3 is a state diagram of replacing an air filter in an indoor unit of an air conditioner in the prior art.

Fig. 4 is an external view of an example of an indoor unit of an air conditioner in the present invention.

Fig. 5 is an exploded view showing the structure of the indoor unit of the air conditioner in the present invention.

Fig. 6 is a diagram of an insertion portion constituting an example of the present invention.

Fig. 7 is an attached view of a state in which a suspension part is inserted into an insertion part constituting an example of the present invention.

Fig. 8 is a partial sectional view showing the structure of the front panel opening holding device constituting the example of the present invention.

Fig. 9 is a side view of the open state of the front panel of the indoor unit of the air conditioner in the present invention.

Fig. 10 is a diagram showing the state of dismantling and detaching the air filter from the indoor unit of the air conditioner of the present invention.

Explanation of the symbols of the main parts of the drawings

50: Indoor unit 52: Shell

54: Front frame 54a: Insertion part

56: Front panel 56a: Suspension part

60: Air filter 62: Heat exchanger

66: Indoor fan 64: Nozzle

68: Fan motor 70: Exhaust port

72: Discharge vane 80: Open holding device

82: Short connecting rod 84: Long connecting rod

85: Linkage mechanism 86: Articulated shaft

87: Control pin 88: Pin guide slot

89: Compression spring

Detailed ways

An example of the indoor unit of the air conditioner of the present invention having the above structure will be described in detail below with reference to the accompanying drawings.

Fig. 4 is an external view of an example of an indoor unit of the air conditioner in the present invention. Fig. 5 is an exploded view of the structure of the indoor unit of the air conditioner in the present invention. Fig. 6 and Fig. 7 respectively show the insertion part constituting the example of the present invention and the state in which the suspension part is inserted into the insertion part.

Fig. 8 is a partial sectional view showing the structure of the front panel opening holding device constituting the example of the present invention. Fig. 9 is a side view of the open state of the front panel of the indoor unit of the air conditioner in the present invention. Fig. 10 is a state view of dismantling and detaching the air filter from the indoor unit of the air conditioner of the present invention.

As shown in the figure, the casing (52) forms the side appearance of the indoor unit (50). The above-mentioned casing (52) is in a flat rectangular shape, and generally its length in the up-down and left-right directions is relatively greater than the front-rear width.

The front end of the housing (52) is provided with a front frame (54), the front frame (54) is roughly rectangular in shape, and a quadrangular suction through hole (54') is formed therein. The suction through-hole portion (54') serves as a passage for the air in the air conditioning space (indoor space) to be sucked into the casing (52).

A front panel (56) is arranged at a certain distance from the front of the front frame (54). The front panel (56) forms the front appearance of the indoor unit (50), and its upper end is hingedly connected to the front frame (54). .

An air filter (60) is provided in front of the above-mentioned suction through-hole part (54') for purifying the air passing through the above-mentioned suction through-hole part (54'). Therefore, the air sucked through the gap between the front panel (56) and the front frame (54) flows into the inside of the casing (52) through the suction through hole (54').

A heat exchanger (62) is arranged at the rear of the above-mentioned front frame (54), and the heat exchanger (62) heats the refrigerant in the heat exchange cycle and the air sucked into the air-conditioning space through the above-mentioned suction through hole (54'). exchanged parts. It is more appropriate for the heat exchanger (62) to form a quadrangular shape corresponding to the area of the front panel (56).

In addition, the above-mentioned heat exchanger (62) is installed on the nozzle (64) provided inside the above-mentioned housing (52), and a nozzle hole (64') is formed in the center of the nozzle (64), which is used to pass through the above-mentioned heat exchanger (62). ) to the indoor fan (66) to be described below.

The lower end of the above-mentioned nozzle (64) is integrally formed with a drain pan (64 ″) for collecting condensed water generated in the above-mentioned heat exchanger (62), and the above-mentioned drain pan (64 ″) is used for converging in the above-mentioned heat exchanger (62) The condensate that falls and performs the function of drainage.

An indoor fan (66) is arranged behind the above-mentioned nozzle (64), and the above-mentioned indoor fan (66) provides the motive force required for the flow of air inside and outside the indoor unit.

The indoor fan (66) sucks air in the direction of its rotation center and discharges air in a direction centrifugal to the rotation center. Above-mentioned indoor fan (66) is driven by the fan motor (68) that is installed in above-mentioned casing (52), and fan motor (68) is then installed in above-mentioned casing (52) by motor bracket (68 ').

A discharge port (70) is formed on the side and the bottom of the casing (52) for discharging the air discharged by the indoor fan (66) into the air-conditioned space. In addition, each of the discharge ports (70) is provided with a discharge vane (72) selectively shielding the discharge port (70).

Piping plates (74) are provided on both sides of the lower end of the casing (52) to shield the part of the piping (not shown) connecting the indoor unit (50) and the outdoor unit extending to the outside of the indoor unit (50). . One side of the above-mentioned piping plate (74) will be selectively used according to the field conditions where the indoor unit is installed.

At the same time, an open holding device (80) for maintaining the open state of the front panel (56) is arranged between the front panel (56) and the front frame (54). Above-mentioned open keeping device (80) comprises the short link (82) that its one end is connected with above-mentioned front frame (54); Its one end is connected with above-mentioned front panel (56), relatively longer than above-mentioned short link (82). Long connecting rod (84); formed between the short connecting rod (82) and the long connecting rod (84), used to control the angle formed by the short connecting rod (82) and the long connecting rod (84) within a certain range Linkage (85).

Above-mentioned link mechanism (85) comprises the articulated axle (86) that articulately connects short connecting rod (82) and long connecting rod (84); A pin introduction groove (88) with one end of the above-mentioned control pin (87) inserted; a compression spring (89) for pressing one end of the above-mentioned control pin (87) close to the above-mentioned pin introduction groove (88).

That is, one end of the above-mentioned long connecting rod (84) is formed with a hinge shaft (86) and is hingedly combined with the short connecting rod (82), and the outer side of the above-mentioned hinge shaft (86) is slidably combined with a hinge shaft (86) formed on the above-mentioned short connecting rod (82). ) a circular hinge (82') at one end. As a result, the above-mentioned hinge part (82') rotates around the above-mentioned hinge shaft (86), so that the above-mentioned short link (82) and long link (84) maintain a constant angle.

The hinge part (82') of the above-mentioned short connecting rod (82) is formed into a circle, and one side thereof is recessed inwardly to form a pin introduction groove (88). At the same time, the pin guide groove (88) has a certain length, and at least forms an arc within 180 degrees with the hinge axis (86) as the center. Therefore, the angle formed by the short link (82) and the long link (84) will be less than 180 degrees.

In addition, the above-mentioned pin introduction groove (88) is formed along one side with a gradually increasing depth. Thereby, when the above-mentioned front panel (56) is opened, the above-mentioned control pin (57) will gradually slide to the part with lower depth in the above-mentioned pin introduction groove (88), thereby making the opening of the front panel (56) easier.

As mentioned above, the upper end of the front panel (56) is hingedly combined with the front frame (54), and its lower end can be detached and installed in the front frame (54). Therefore, the rear lower end both sides of the front panel (56) protrudes rearward to form a suspension part (56a), and the front lower end both sides of the front frame (54) then protrudes forward to form an insertion combined with the above-mentioned suspension (56a). part (54a) so that the lower end of the front panel (56) fits into the front frame (54).

That is, as described in detail in FIG. 6 , the above-mentioned insertion portion ( 54 a ) is formed symmetrically on both sides, and the above-mentioned hanging portion ( 56 a ) is inserted into and combined with the inner side of the insertion portion ( 54 a ) on both sides. The function of the indoor unit of the air conditioner in the present invention constructed as above will be described below.

In the present invention, when the air conditioner is driven, the discharge vanes (72) open the discharge ports (70). The indoor fan (66) is rotated by the driving of the fan motor (68), and the air in the air conditioning space is sucked into the interior of the indoor unit (50) through the suction through hole (54').

The air sucked inside the above-mentioned indoor unit (50) will pass through the air filter (60) to filter foreign substances therein, and perform heat exchange when passing through the heat exchanger (62). The air passing through the heat exchanger (62) will be directed to the indoor fan (66) by the nozzle (64) and discharged toward the centrifugal direction of the indoor fan (66). The air discharged by the indoor fan (66) is discharged to the outside through the discharge port (70).

In addition, during the working process of the air conditioner, the heat exchanger (62) will produce condensed water, in order to discharge the condensed water, the drain pipe is extended to the outside through one side of the piping plate (74). At this time, not only the drain pipes, but also pipes for transmitting working fluid between the indoor unit and the outdoor unit, and power lines for transmitting electrical signals pass through the piping plate (74).

When the above-mentioned indoor unit (50) is used for a long time, it is necessary to remove the foreign matter filtered out in the air filter (60), and the disassembly process of the above-mentioned air filter (60) will be described here.

First, to remove the air filter (60), hold the front panel (56) with your hand and pull it forward, so that the hanging part (56a) of the front panel (56) is lifted from the insertion part (54a) of the front frame (54). separated. Thereby, the upper end of the front panel (56) is rotated as an axis, and the lower part of the front panel (56) is opened as shown in FIGS. 9 and 10 .

At this time, the above-mentioned control pin (87) will slide along the pin introduction groove (88). Panel (56) will stop opening and keep it open.

When the lower part of the front panel (56) is open, the user pulls the air filter (60) forward, removes the air filter (60) from the front frame (54) and cleans it with water or a vacuum cleaner.

Subsequently, in the case of installing the above-mentioned air filter (60), the following operations can be performed in the reverse order of dismounting as described above.

First, after cleaning, the air filter (60) is installed in front of the front frame (54), and the lower end of the front panel (56) is placed downward. Thereby, the above-mentioned front panel (56) is fixed to the above-mentioned front frame (54) with the upper end as an axis.

At this time, the hanging portion (56a) at the lower end of the front panel (56) is clamped and fixed in the insertion portion (54a) of the front frame (54). That is, the above-mentioned insertion portions (54a) constituting a pair have a certain size and some elasticity. When the hanging portion (56a) is sandwiched between the insertion portions (54a), the pair of insertion portions (54a) will bend to both sides. When the suspension part (56a) is fully clamped, the insertion part (54a) will prevent and fix the suspension part (56a) by its elastic force.

In addition, when the force of the user pulling the lower end of the front panel (56) forward exceeds the elastic force of the insertion part (54a), the suspension part (56a) will break away from the insertion part (54a) and make the front panel (56) Open to the front.

The scope of the above-mentioned present invention is not limited to the examples described above, and those skilled in the relevant industries can make various modifications based on the present invention within the technical scope of the present invention.

Claims (6)

1. An indoor unit of an air conditioner includes a casing forming an appearance; a front frame formed in front of the above casing; an air filter that can be detached and arranged on the above-mentioned front frame for filtering foreign matter in the air; the front frame of the above-mentioned The front panel is set at a certain interval and forms the front appearance of the front panel. It is characterized in that: one side of the front panel is provided with an opening holding device for maintaining the open state of the front panel, so that the air can be sucked through the gap between the front panel and the front frame. The air inside the indoor unit is discharged through discharge ports provided on the bottom and side of the housing. 2. The indoor unit of an air conditioner according to claim 1, characterized in that: one end of the opening holding device is connected to the short connecting rod of the above-mentioned front frame; one end is connected to the long connecting rod of the above-mentioned front panel; Control the above-mentioned short connecting rod and long connecting rod to form an angle within a certain range to form a connecting rod mechanism. 3. The indoor unit of an air conditioner according to claim 2, characterized in that: said link mechanism includes: a hinge shaft for hingedly connecting said short link and long link; the control pin; the pin introduction groove with one end of the above-mentioned control pin is slidably inserted; the compression spring part for making the one end of the above-mentioned control pin close to the above-mentioned pin introduction groove. 4. The indoor unit of an air conditioner according to claim 3, wherein the pin guide groove is formed along one side with a gradually increasing depth. 5. The indoor unit of an air conditioner according to claim 1, wherein the upper end of the front panel is hingedly connected to the front frame, and the lower end is detachably mounted on the front frame. 6 . The indoor unit of an air conditioner according to claim 5 , wherein a hanging part is provided at the rear lower end of the front panel, and an insertion part for connecting the hanging part is provided on the front frame.

Images