WO2023040665A1 - Air conditioner - Google Patents

Abstract

Provided is an air conditioner (1000). The air conditioner (1000) comprises an outdoor unit (20) and an indoor unit (10). The indoor unit (10) is connected to the outdoor unit (20). The indoor unit (10) comprises a housing (100), a heat exchange duct (200), an indoor heat exchanger (300), and a duct box (400). The housing (100) has a first air inlet (110). One end of the heat exchange duct (200) is communicated with the first air inlet (110), the indoor heat exchanger (300) is provided in the heat exchange duct (200), the duct box (400) is provided in the housing (100), a fresh air duct (410) is provided inside the duct box (400), the fresh air duct (410) is communicated with the heat exchange duct (200), and the duct box (400) comprises a first box body (490), a second box body (480), and a corner (491). The introduction of fresh air can be avoided to raise or lower the indoor temperature and humidity.

Description

air conditioner

This application claims the priority of the Chinese patent application with application number 202122252184.9 filed on September 16, 2021, and the priority of the Chinese patent application with application number 202122252167.5 filed on September 16, 2021, in 2022 Priority of Chinese patent application with application number 202221993781.5 filed on July 29, 2022 Priority of Chinese patent application with application number 202221993691.6 filed on July 29, 2022 , the priority of the Chinese patent application with application number 202221993803.8, the entire contents of which are incorporated in this application by reference.

technical field

The present disclosure relates to the technical field of air conditioning, in particular to an air conditioner.

Background technique

With the advancement of science and technology and the improvement of people's living standards, air conditioners have gradually entered people's lives and become a commonly used article in people's work and life.

A split air conditioner includes an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are respectively installed indoors and outdoors, and the two are connected through corresponding pipelines and wires.

Contents of the invention

Provided is an air conditioner including an outdoor unit and an indoor unit. The indoor unit is connected with the outdoor unit. The air conditioner inner unit includes a shell, a heat exchange air duct, an indoor heat exchanger and an air duct box. The casing has a first air inlet. A heat exchange air channel, one end of the heat exchange air channel communicates with the first air inlet. The indoor heat exchanger is arranged in the heat exchange air duct. The air duct box is arranged in the housing, the interior of the air duct box has a fresh air duct, the fresh air duct communicates with the heat exchange air duct, and the air duct box includes a first box body, a second Box and corners. The first box is arranged on one side of the indoor heat exchanger, and the first end of the first box has a second air inlet. The second box is arranged on the side adjacent to the one side of the indoor heat exchanger, the first end of the second box has a fresh air outlet, the second air inlet, the fresh air The air outlet communicates with the fresh air duct, and the fresh air outlet communicates with the heat exchange air duct between the first air inlet and the indoor heat exchanger. A corner, the first end of the corner is connected to the second end of the first box, the second end of the corner is connected to the second box, the first box, the second box The body and the corner communicate with each other.

Description of drawings

FIG. 1 is a schematic diagram of an air conditioner according to some embodiments;

Fig. 2 is a structural diagram of another air conditioner according to some embodiments;

Fig. 3 is a structural diagram of an air duct box body according to some embodiments;

Fig. 4 is a structural diagram of a first cover according to some embodiments;

Fig. 5 is a structural diagram of another angle of the first cover in Fig. 4;

Fig. 6 is a structural view of another angle of the first cover in Fig. 4;

Fig. 7 is a structural diagram of an air duct box, a base and an indoor heat exchanger according to some embodiments;

Fig. 8 is an exploded view of the air duct box and the indoor heat exchanger in Fig. 7;

Fig. 9 is a structural diagram of another angle of the air duct box, the base and the indoor heat exchanger in Fig. 7;

Fig. 10 is an exploded view of the air duct box, the base and the indoor heat exchanger in Fig. 9;

Fig. 11 is an enlarged view at circle A in Fig. 7;

Figure 12 is an enlarged view at circle B in Figure 9;

Fig. 13 is a structural diagram of the mounting part in Fig. 9;

Fig. 14 is a structural diagram of a base according to some embodiments;

Fig. 15 is a structural diagram of an air duct box according to some embodiments;

Figure 16 is an exploded view of an air duct box according to some embodiments;

Fig. 17 is a structural diagram of a first box according to some embodiments;

Figure 18 is an enlarged view at circle C in Figure 17;

Fig. 19 is a structural diagram of a second cover according to some embodiments;

Fig. 20 is a structural diagram of another angle of the second cover in Fig. 19;

Figure 21 is an enlarged view at circle D in Figure 20;

Fig. 22 is a structural diagram of an indoor unit according to some embodiments;

Fig. 23 is a structural diagram of an air duct box, a base and an end plate according to some embodiments;

Fig. 24 is a side view of the air duct box, base and end plate in Fig. 23;

Fig. 25 is a structural diagram of another air duct box according to some embodiments;

Fig. 26 is a structural diagram of another indoor unit according to some embodiments;

Fig. 27 is a structural diagram of the indoor unit in Fig. 26 in an open state;

Fig. 28 is a front view of the indoor unit in Fig. 27;

Figure 29 is a cross-sectional view along line A-A in Figure 28;

Figure 30 is a structural diagram of an end plate according to some embodiments;

Figure 31 is a side view of the end plate in Figure 30;

In the figure, 1000, air conditioner; 10, indoor unit; 300, indoor heat exchanger; 301, indoor fan; 20, outdoor unit; 201, compressor; 202, four-way valve; 203, outdoor heat exchanger; 204, Outdoor fan; 205, expansion valve; 50, fresh air duct;

100. Shell; 300. Indoor heat exchanger; 400. Air duct box; 410. Fresh air duct; 420. Filter screen; 430. First cover; 435. First cover body; 431. Through hole; 432 , the second clamping piece; 433, the second limit piece; 434, the guide piece; 440, the slide rail; 443, the slide rail body; 441, the entry end; 442, the installation end; 450, the first clamping piece; 460 , the first limit piece; 470, the plate; 473, the plate body; 471, the mouth piece; 472, the handle; 411, the second air inlet; 412, the fresh air outlet;

600, base; 630, base body; 610, installation groove; 620, installation part; 625, installation part body; 621, sink; 622, support part; 623, second fixing part; 624, second limit part; 480, the second box body; 486, the second box body body; 490, the first box body; 495, the first box body body; 421, the first limit part; 491, the corner; 496, the corner body; 492, the first a fixed part;

481, the second cover; 484, the second cover body; 482, the joint pipe; 485, the joint pipe body; 483, the first stop piece; 436, the drainage hole; 494, the boss; 432, the second clip pieces; 461, inverted teeth;

110. The first air inlet;

400, the air channel box; 222, the third limit part; 223, the air guiding bend part;

4. End plate; 42. End plate body; 41. Platform;

200, heat exchange air duct; 211, first convex edge; 212, water guide rib; 213, second convex edge; 214, water guide groove; 2141, water guide port; 215, side edge; 216, water retaining rib; 217, Mounting holes;

3. Accommodating cavity.

Detailed ways

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments provided in the present disclosure belong to the protection scope of the present disclosure.

Throughout the specification and claims, unless the context requires otherwise, the term "comprise" and other forms such as the third person singular "comprises" and the present participle "comprising" are used Interpreted as the meaning of openness and inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" example)" or "some examples (some examples)" etc. are intended to indicate that specific features, structures, materials or characteristics related to the embodiment or examples are included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

In describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other. As another example, the term "coupled" may be used when describing some embodiments to indicate that two or more elements are in direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other. The embodiments disclosed herein are not necessarily limited by the context herein.

The use of "suitable for" or "configured to" herein means open and inclusive language that does not exclude devices that are suitable for or configured to perform additional tasks or steps.

As used herein, "about", "approximately" or "approximately" includes the stated value as well as the average within the acceptable deviation range of the specified value, wherein the acceptable deviation range is as determined by one of ordinary skill in the art. Determined taking into account the measurement in question and the errors associated with the measurement of a particular quantity (ie, limitations of the measurement system).

As used herein, "parallel", "perpendicular", and "equal" include the stated situation and the situation similar to the stated situation, the range of the similar situation is within the acceptable deviation range, wherein the The acceptable deviation ranges are as determined by one of ordinary skill in the art taking into account the measurement in question and errors associated with measurement of the particular quantity (ie, limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; Deviation within 5°. "Equal" includes absolute equality and approximate equality, where the difference between the two that may be equal is less than or equal to 5% of either within acceptable tolerances for approximate equality, for example.

Some embodiments of the present disclosure provide an air conditioner.

As shown in FIG. 1 , an air conditioner 1000 includes an indoor unit 10 and an outdoor unit 20 . The indoor unit 10 and the outdoor unit 20 are connected through pipelines to transmit refrigerant. The indoor unit 10 includes an indoor heat exchanger 300 and an indoor fan 301 . The outdoor unit 20 includes a compressor 201 , a four-way valve 202 , an outdoor heat exchanger 203 , an outdoor fan 204 and an expansion valve 205 . The compressor 201, the outdoor heat exchanger 203, the expansion valve 205 and the indoor heat exchanger 300 connected in sequence form a refrigerant circuit, and the refrigerant circulates in the refrigerant circuit, passing through the outdoor heat exchanger 203 and the indoor heat exchanger 300 respectively. Exchanging heat with air to realize the cooling mode or heating mode of the air conditioner 1000 .

The compressor 201 is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form the high-pressure refrigerant.

The outdoor heat exchanger 203 is configured to exchange heat between the outdoor air and the refrigerant transported in the outdoor heat exchanger 203 . For example, the outdoor heat exchanger 203 works as a condenser in the cooling mode of the air conditioner 1000 , so that the refrigerant compressed by the compressor 201 dissipates heat to the outdoor air through the outdoor heat exchanger 203 to condense. The outdoor heat exchanger 203 works as an evaporator in the heating mode of the air conditioner 1000 , so that the decompressed refrigerant absorbs the heat of the outdoor air through the outdoor heat exchanger 203 and evaporates.

The outdoor fan 204 is configured to suck outdoor air into the outdoor unit 20 through the third air inlet of the outdoor unit 20 , and send out the outdoor air after exchanging heat with the outdoor heat exchanger 203 through the outdoor air outlet of the outdoor unit 20 . Outdoor fan 204 powers the flow of outdoor air.

The expansion valve 205 is connected between the outdoor heat exchanger 203 and the indoor heat exchanger 300, and the pressure of the refrigerant flowing through the outdoor heat exchanger 203 and the indoor heat exchanger 300 is adjusted by the opening of the expansion valve 205 to adjust the flow to the outdoor The refrigerant flow rate between the heat exchanger 203 and the indoor heat exchanger 300 . The flow rate and pressure of the refrigerant circulating between the outdoor heat exchanger 203 and the indoor heat exchanger 300 will affect the heat exchange performance of the outdoor heat exchanger 203 and the indoor heat exchanger 300 . The expansion valve 205 may be an electronic valve. The opening of the expansion valve 205 can be adjusted to control the flow and pressure of the refrigerant flowing through the expansion valve 205 .

The four-way valve 202 is connected in the refrigerant circuit, and the four-way valve 202 is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner 1000 executes a cooling mode or a heating mode.

The indoor heat exchanger 300 is configured to exchange heat between indoor air and refrigerant transferred in the indoor heat exchanger 300 . For example, the indoor heat exchanger 300 works as an evaporator in the cooling mode of the air conditioner 1000 , so that the refrigerant that has dissipated heat through the outdoor heat exchanger 203 absorbs heat from indoor air through the indoor heat exchanger 300 and evaporates. The indoor heat exchanger 300 works as a condenser in the heating mode of the air conditioner 1000 , so that the refrigerant absorbed by the outdoor heat exchanger 203 dissipates heat to the indoor air through the indoor heat exchanger 300 to condense.

In some embodiments, the indoor heat exchanger 300 further includes heat exchange fins to expand the contact area between the indoor air and the refrigerant transported in the indoor heat exchanger 300, thereby improving the heat exchange efficiency between the indoor air and the refrigerant .

As shown in Figures 1 and 2, the indoor fan 301 is configured to draw indoor air into the indoor unit 10 through the first air inlet 110 of the indoor unit 10, and transfer the indoor air after heat exchange with the indoor heat exchanger 300 through the The indoor air outlet of the indoor unit 10 sends out air. The indoor fan 301 provides power for the flow of indoor air.

Usually, an air conditioner with a fresh air function includes a fresh air device installed in the indoor unit. Since the fresh air device makes a lot of noise when blowing out air, it is easy to cause bad user experience to customers. If the fresh air device is installed in the outdoor unit, pipes are needed to introduce the fresh air generated by the fresh air device into the room. There is a difference in temperature and humidity between the fresh air in the room and the indoor temperature, which can easily cause the indoor temperature and humidity to rise or fall.

To solve the above problems, as shown in FIG. 2 , FIG. 7 to FIG. 9 , FIG. 10 and FIG. 26 , the indoor unit 10 further includes a casing 100 , a heat exchange air duct 200 and an air duct box 400 .

The casing 100 has a first air inlet 110 and an indoor air outlet. The heat exchange air duct 200 is disposed inside the housing 100 , and the two ends of the heat exchange air duct 200 communicate with the first air inlet 110 and the indoor air outlet respectively.

The indoor heat exchanger 300 is arranged in the heat exchange air duct 200, the heat exchange air duct section between the first air inlet 110 and the indoor heat exchanger 300 is the air inlet duct, and the section between the indoor heat exchanger 300 and the indoor air outlet The heat exchange air passage section is the air outlet air passage.

As shown in Fig. 2, Fig. 3 and Fig. 15, the air duct box 400 is arranged in the casing 100, and the interior of the air duct box 400 has a fresh air duct 410, and the fresh air duct 410 is connected with the heat exchange duct 200, and the air duct The first end of the box 400 has a second air inlet 411, the second end of the air duct box 400 has a fresh air outlet 412, the second air inlet 411 and the fresh air outlet 412 are connected with the fresh air duct 410, and the fresh air outlet 412 is connected to the fresh air outlet 412. The air inlet ducts are connected, so that the fresh air blown out from the fresh air outlet 412 enters the air outlet duct after heat exchange by the indoor heat exchanger 300 . In this way, the fresh air in the fresh air duct can be heat-exchanged by the indoor heat exchanger 300 and then enter the outlet air duct, without being directly mixed into the air-conditioning air after heat exchange by the indoor heat exchanger 300, reducing the temperature and impact on the air-conditioning air. Humidity, thereby reducing energy loss.

For the convenience of description, unless otherwise specified, the expressions of left, right, front, and rear orientations in this disclosure refer to the state of the air conditioner 1000 when it is in use. When the air conditioner 1000 is in use, the side facing the user is the front side, and the opposite side is the rear side. The left-right direction of the air conditioner 1000 is opposite to the user's left-right direction, for example, the left side of the air conditioner 1000 is the user's right side, and the right side of the air conditioner 1000 is the user's left side.

As shown in FIG. 3 , FIG. 4 and FIG. 8 , the air duct box 400 includes a first box body 490 , a second box body 480 and a corner 491 which communicate with each other, and the first box body 490 is arranged on one side of the indoor heat exchanger 300 (for example, the left side or the right side), the second box body 480 is located on the side (for example, the front side) adjacent to the side of the indoor heat exchanger 300, and one end of the first box body 490 has a second inlet Air outlet, one end of the second box body 480 has a fresh air outlet, and the junction of the first box body 490 and the second box body 480 forms a corner 491, so that the fresh air outlet can be set corresponding to the position of the indoor heat exchanger 300, which can fully Utilizing the internal space of the housing 100 does not increase the size of the housing 100 .

The air duct box 400 also includes a filter 420 , and the filter 420 is arranged at the fresh air outlet 412 .

On the one hand, the filter 420 can filter the dust in the fresh air, and on the other hand, the filter 420 can reduce the flow velocity of the fresh air, thereby reducing the noise when the fresh air blows out from the fresh air duct.

The air conditioner 1000 also includes a fresh air pipe 50, the first end of the fresh air pipe 50 communicates with the fresh air device of the indoor unit 10, the second end of the fresh air pipe 50 communicates with the air duct box 400, the fresh air device generates fresh air, and the fresh air flows from the fresh air The tube 50 flows into the duct box 400 . In this way, the fresh air in the fresh air duct can be heat-exchanged by the indoor heat exchanger 300 and then enter the outlet air duct, without being directly mixed into the air-conditioning air after heat exchange by the indoor heat exchanger 300, reducing the temperature and impact on the air-conditioning air. Humidity, thereby reducing energy loss. In some embodiments, as shown in FIG. 4 and FIG. 15 , the air duct box 400 further includes a first cover 430, the first cover 430 is arranged at the fresh air outlet 412, and the first cover 430 is used to cover the fresh air. Air outlet 412. The first cover 430 has a through hole 431 , so that the fresh air duct 410 communicates with the air intake duct through the through hole 431 , and the filter 420 is disposed on the first cover 430 and covers the through hole 431 .

After the fresh air enters the fresh air duct 410 from the second air inlet 411, it leaves the fresh air duct 410 through the through hole 431. When the fresh air leaving the fresh air duct 410 passes through the through hole 431, it can pass through the filter screen 420, ensuring that the fresh air filtering and noise reduction effects.

In some embodiments, the filter 420 is disposed in the middle of the first cover 430 .

In some embodiments, as shown in FIG. 3 , the air duct box 400 further includes a slide rail 440 , the slide rail 440 is disposed on the second box body 480 , and the position of the slide rail 440 corresponds to the position of the first cover body 430 , The first cover 430 can slide on the second box 480 along the slide rail 440 . The slide rail 440 includes a slide rail body 443 , an entry end 441 and a mounting end 442 , the first end of the slide rail body 443 is connected to the entry end 441 , and the second end of the slide rail body 443 is connected to the installation end 442 . The first cover 430 can slide from the entry end 441 to the installation end 442 along the slide rail 440 . When the first cover 430 slides to the installation end 442 , the first cover 430 covers the fresh air outlet 412 .

When installing the first cover 430 , after the first cover 430 slides from the entry end 441 to the installation end 442 , the first cover 430 covers the fresh air outlet 412 to realize the installation of the first cover 430 . When detaching the first cover 430 , after the first cover 430 slides from the installation end 442 to the entry end 441 , the first cover 430 is separated from the air duct box 400 to realize the disassembly of the first cover 430 .

In some embodiments, as shown in FIG. 4 , FIG. 5 , FIG. 15 and FIG. 17 , the air duct box 400 further includes a first clamping member 450 located at the inlet end 441 .

The first cover 430 includes a first cover body 435 and a second clamping member 432, the second clamping member 432 is arranged at the position of the first cover body 435 close to the entry end 441, the second clamping member 432 is used for Cooperate with the first clip 450 to realize the installation of the first cover 430 .

When the first cover 430 slides to the installation end 442 , the first clamping member 450 cooperates with the second clamping member 432 to form a clamping connection between the two.

In some embodiments, the first engaging member 450 is a slot, and the second engaging member 432 is a protrusion. When the first cover 430 slides to the installation end 442, the protrusion engages in the engaging groove to realize the first The cover 430 is engaged with the air channel box 400 to fix the first cover 430 at the installation end 442 .

In some embodiments, as shown in FIG. 3 and FIG. 6 , the air duct box 400 further includes a first limiting member 460 , and the first limiting member 460 is located at the installation end 442 .

The first cover 430 also includes a second stopper 433, the second stopper 433 is arranged on the first cover body 435 near the installation end 442, the second stopper 433 is used to cooperate with the first stopper 460 matched to position the first cover 430 .

When the first cover 430 slides to the installation end 442 , the first limiting member 460 abuts against the second limiting member 433 to prevent the first cover 430 from sliding further.

The first limiting member 460 is a limiting rib, and the length direction of the limiting rib intersects with the length direction of the slide rail 440 so that the limiting rib can block the first cover 430 and prevent the first cover 430 from continuing to slide. The second limiting member 433 is a limiting groove. When the first cover 430 slides to the installation end 442 , the limiting rib is inserted into the limiting groove to prevent the first cover 430 from sliding further.

In some embodiments, the first cover 430 further includes a guide 434 disposed on the first cover body 435 , and the guide 434 is used to guide the first limiting member 460 .

When the first cover 430 slides to the installation end 442 , the first limiting member 460 slides along the guiding member 434 , so that the first limiting member 460 and the second limiting member 433 form a fit.

In some embodiments, the guide member 434 is an inclined surface, which is arranged on the groove wall of the limiting groove, and is used for guiding the limiting rib to insert into the limiting groove.

The first cover 430 further includes a plate 470 disposed on one side of the first cover body 435 . The plane where the plate 470 is located forms an included angle with the plane where the filter screen 420 is located. For example, the plane where the plate 470 is located and the plane where the filter 420 is located form an angle of 90 degrees, which is beneficial for the plate 470 to fit the side wall of the fresh air outlet 412 and play a role in sealing the fresh air outlet 412 .

When the first cover 430 slides to the installation end 442 , the first cover body 435 and the plate 470 seal the fresh air outlet 412 together.

As shown in FIG. 4 , the plate 470 includes a plate body 473 and a stop piece 471 , the stop piece 471 is arranged on one side of the plate body 473 , and engages with the stop piece 471 and the fresh air outlet 412 to seal the fresh air outlet 412 .

In some embodiments, the board 470 further includes a handle 472 disposed on a side of the board 470 away from the fresh air duct 410 .

The handle 472 is used for plugging and unplugging the first cover 430 , which facilitates the installation and removal of the first cover 430 .

In some embodiments, as shown in FIG. 14 , the indoor unit 10 further includes a base 600 disposed in the casing 100 , the indoor heat exchanger 300 is mounted on the base 600 , and the base 600 includes a base body 630 and a mounting groove 610 , the installation groove 610 is disposed on one side of the base body 630 , and the installation groove 610 is used for fixed connection with the air duct box 400 , so that the air duct box 400 is installed on the base 600 .

In some embodiments, as shown in FIG. 13 , the base 600 further includes a mounting part 620 disposed on the base body 630 , and the mounting part 620 is disposed between the indoor heat exchanger 300 and the first box body 490 .

The corner 491 and the first box body 490 respectively cooperate with the installation part 620 so that the first box body 490 is installed on the base 600 through the installation part 620 .

The mounting piece 620 is used to install the air duct box 400 on the base 600 , and the mounting piece 620 is used to support the corner 491 to support the air duct box 400 so that the air duct box 400 is installed stably.

In some embodiments, the mounting part 620 includes a mounting part body 625 and a water receiving tank 621 , and the water receiving tank 621 is disposed on one side of the mounting part body 625 . The drainage holes are set corresponding to the fresh air duct 410 , so that the water receiving tank 621 receives the condensed water discharged from the fresh air duct 410 .

In some embodiments, as shown in FIG. 11 and FIG. 12 , the first box body 490 includes a first box body 495 and a first limiting portion 421, the first limiting portion 421 is disposed on the first box body 495, and the first box body 495 A limiting part 421 is inserted in the water receiving tank 621 and abuts against the tank wall of the water receiving tank 621 to prevent the first box body 490 from moving away from the mounting part 620, and the first box body 490 will not be detached from the mounting part 620.

The shape of the first limiting part 421 is columnar or ring-shaped, etc. In some embodiments, the first limiting part 421 is set to be ring-shaped, so that the first limiting part 421 is inserted into the water receiving tank 621 and at the same time, The water tank 621 also has a space to receive condensed water.

In some embodiments, the installation part 620 further includes a support part 622 for supporting the air duct box 400 , and one side of the corner 491 close to the indoor heat exchanger 300 is attached to the outer surface of the support part 622 .

The supporting part 622 supports the air duct box 400 to enhance the installation stability of the air duct box 400 .

In some embodiments, the corner 491 includes a corner body 496 and a first fixing portion 492 , and the first fixing portion 492 is disposed on an outer surface of the corner body 496 .

The mounting part 620 also includes a second fixing part 623, the second fixing part is arranged on the mounting part body 625, the second fixing part 623 cooperates with the first fixing part 492, so that the first fixing part 492 and the second fixing part 623 The fixed connection makes the air duct box 400 fixedly connected to the mounting part 620 .

In some embodiments, the first fixing part 492 is a bolt hole, and the second fixing part 623 is also a bolt hole. The first fixing part 492 and the second fixing part 623 are connected by bolts, so as to realize the fixed connection of the air duct box 400 mount 620.

In some embodiments, the mounting part 620 further includes a second limiting part 624 , and the second limiting part 624 is disposed on the mounting part body 625 . The second limiting portion 624 cooperates with the outer surface of the corner 491 away from the first fixing portion 492, so that the second limiting portion 624 prevents the air duct box 400 from moving toward the second limiting portion 624, and the second The limiting portion 624 and the second fixing portion 623 jointly position the air duct box 400 .

The height of the second limiting portion 624 is higher than that of the supporting portion 622 , and the second limiting portion 624 is also disposed on one side of the supporting portion 622 . It should be noted that the height of the second limiting portion 624 is higher than that of the supporting portion 622 means that the upper surface of the second limiting portion 624 is higher than the upper surface of the supporting portion 622 . In this way, the support portion 622 abuts against the support portion 622 to position the support portion 622 .

In some embodiments, as shown in FIG. 19 , the air duct box 400 further includes a second cover 481 , and the second cover 481 covers the opening of the first box 490 .

The first cover body 430 covers the opening of the second box body 480 , and the opening direction of the second box body 480 is different from the opening direction of the first box body 490 .

Since the first box body 490 is arranged on one side of the indoor heat exchanger 300, and the second box body 480 is located on the front side of the indoor heat exchanger 300, the extension directions of the first box body 490 and the second box body 480 are different, so the second box body 480 The opening directions of the first box body 490 and the second box body 480 are different. In some embodiments, as shown in FIG. 16 and FIG. On one side of the second box body 480 , the joint pipe 482 communicates with the fresh air duct 410 of the first box body 490 , and the mouth of the joint pipe 482 is the second air inlet.

The arrangement of the joint pipe 482 facilitates the connection with the fresh air pipe 50 so that the fresh air pipe 50 can communicate with the fresh air duct 410 .

In some embodiments, the joint pipe 482 is used to connect with the fresh air pipe 50. The joint pipe 482 includes a joint pipe body 485 and a barbed tooth 461. The barbed tooth 461 is arranged on the joint pipe body 485. Arranged in the direction of the central axis, the inverted teeth 461 are used to connect with the nozzle of the fresh air pipe, and the joint pipe 482 can hold the nozzle of the fresh air pipe 50, so that the joint pipe 482 can be fixedly connected with the fresh air pipe, improving the The connection stability between the joint pipe 482 and the fresh air pipe 50.

In some embodiments, as shown in FIG. 18 , the first box body 490 further includes a first notch piece 483 , and the first notch piece 483 is located at the opening of the first box body body 495 .

The second cover 481 also includes a second mouthpiece, which is used to connect with the first mouthpiece 483, and can reduce the connection gap between the first box body 490 and the second cover 481 to reduce Fresh air escaping from the gap.

In some embodiments, the first box body 490 further includes a first locking member 450 located at the opening of the first box body 495 .

As shown in Figure 19, the second cover 481 also includes a second cover body 484 and a second clip 432, the second clip 432 is used to cooperate with the first clip 450, so that the first box body 490 is engaged with the second cover 481 .

For example, the first clamping member 450 is a buckle head, and the second clamping member 432 is a buckle groove, and the buckle head and the buckle groove cooperate to realize the clamping connection between the second cover 481 and the first box body 490 .

In some embodiments, as shown in FIG. 20 and FIG. 21 , the second cover 481 further includes a boss 494, and the boss 494 is located on the side of the second cover body 484 away from the first box body 490, and the boss 494 Extending to the outside of the air channel box 400, the boss 494 is used to abut against the inner wall of the housing 100, so that the surface of the second cover body 484 is separated from the inner wall of the housing 100, so that the air channel box 400 The condensed water will not flow down along the inner wall of the housing 100 , which is beneficial to the collection of the condensed water, and will not affect other components due to the condensed water.

In some embodiments, as shown in FIG. 17 , the first box body 490 has a drainage hole 436 , and the drainage hole 436 is arranged at the bottom of the first box body 490 on the side of the first box body 490 close to the corner 491 , and the drainage hole 436 It is used to discharge the condensed water accumulated in the fresh air duct 410 .

As shown in Figures 22 to 25, the indoor unit 10 also includes an end plate 4 disposed on one side of the base 600, the air duct box 400 is disposed on the end plate 4, and one side of the first box body 490 (the lower side) and the base 600 connection, and one side (such as the front side) of the second box body 480 is connected to the end plate 4 . The air duct box 400 is arranged on one side of the base 600, and the components inside the indoor unit 10 can be reasonably used to fix the air duct box 400, and the connection stability is strong.

In some embodiments, the first box body 490 is connected to the base 600 through a first threaded fastener, and the second box body 480 is connected to the end plate 4 through a second threaded fastener. By detachably connecting the first box body 490 and the second box body 480 to the base 600 and the end plate 4 respectively, the connection is stable and the detachability is strong, which is convenient for future maintenance.

In some embodiments, as shown in FIG. 13 and FIG. 23 , the end plate 4 includes an end plate body 42 and a platform 41 , and the platform 41 is disposed on the end plate body 42 . After the air channel box 400 is assembled with the end plate 4, one side of the second box body 480 is attached to the platform 41, which increases the connection area between the second box body 480 and the end plate 4, and improves the The stability of the connection between 480 and end plate 4.

In some embodiments, as shown in FIG. 25 , the second box body 480 includes a second box body body 486 and an air guide bend 223 . The air guide bend 223 is disposed at the fresh air outlet of the second box body 486 . The air guide bend 223 is used to guide the fresh air blown from the fresh air outlet to the air inlet. The second box body 480 further includes a third limiting portion 222 , and the third limiting portion 222 is disposed on a side of the second box body 486 close to the end plate 4 . The third limiting portion 222 is attached to a side wall of the end plate 4 . After the air channel box 400 is assembled with the end plate 4, the limiting part 222 is attached to the side wall of the end plate 4, so that the gap between the limiting part 222 and the end plate 4 is small, which is conducive to reducing the size of the limiting part. 222 and the occupied space of the end plate 4 in the casing 1.

In some embodiments, the first box body 490 and the second box body 480 are integrally formed, the overall structural strength is relatively high, and it is difficult to deform.

As shown in FIGS. 26 to 31 , an accommodating chamber 3 is formed between the indoor heat exchanger 300 and the heat exchange air duct 200 , and the accommodating chamber 3 is used for accommodating the indoor fan 301 . The end plate 4 also includes a first convex edge 211 and a water guide rib 212. The first convex edge 211 is arranged on the first side of the end plate body 42. The first end of the first convex edge 211 is close to the heat exchange air duct 200. Connected at the position of the water receiving tank 621, the water guiding rib 212 is arranged on the first convex edge 211, and the water guiding rib 212 extends toward the opening direction of the water receiving tank 621 to cover the first end of the first convex edge 211 and the heat exchange air duct 200 gaps between connections.

In this way, when condensed water is generated on the first side of the end plate body 42, the condensed water flows to the first convex edge 211 under the action of gravity, and then the condensed water flows into the water receiving groove 621 along the first convex edge 211. Draining, the first convex edge 211 prevents the condensation water from dripping into the accommodation chamber 3, prevents the indoor fan 301 in the heat exchange air duct 200 from being affected by the condensation water, and ensures the normal operation of the indoor fan 301. At the same time, the water guiding rib 212 can cover the connection gap between the first end of the first convex edge 21 and the heat exchange air duct 200, so that the condensation water flows into the water receiving groove 621 along the first convex edge 211 and the water guiding rib 212 in sequence. , effectively prevent the condensed water from seeping into the accommodation cavity 3 from the connection gap, so as to prevent the condensed water from entering the heat exchange air duct 200 and blowing out with the airflow from the air outlet, thereby improving the user experience.

The end plate 4 also includes a mounting hole 217. The mounting hole 217 is used to install the heat exchange tube. The two ends of the mounting hole 217 respectively penetrate the first side and the second side of the end plate body 42, and the heat exchange tube is inserted through the expansion joint. in the installation hole 217. It should be noted that the first side of the end plate body 42 refers to the side facing the receiving cavity 3 , and the second side of the end plate body 42 refers to the side facing away from the receiving cavity 3 .

In some embodiments, the first end of the water guiding rib 212 is fixedly connected to the first end of the first convex edge 211 , and the second end of the water guiding rib 212 extends into the water receiving groove 621 . The shape of the water guide rib 212 is arc-shaped, which is beneficial for the water guide rib 212 to cover the connection gap between the first end of the first convex edge 211 and the heat exchange air duct 200 .

In some embodiments, the end plate 4 further includes a second convex edge 213, the second convex edge 213 is disposed on the first side surface of the end plate body 42, and a guide is formed between the second convex edge 213 and the first convex edge 211. The water tank 214, the first end of the second convex edge 213 and the first end of the first convex edge 211 are separated by a predetermined distance to form a water guide port 2141 communicating with the water receiving groove 621, and the second end of the second convex edge 213 is connected to the first end of the first convex edge 211. The second end of the convex edge 211 is sealed and connected. The shape of the second convex edge 213 is arc-shaped, such as a semi-circular arc shape, which is beneficial for avoiding the position of the second convex edge 213 and the indoor fan 301 . A water guiding groove 214 is formed between the second convex edge 213 and the first convex edge 211, one end of the water guiding groove 214 communicates with the water receiving groove 621, and the other end of the water guiding groove 214 is closed so that the condensation water can flow along the water guiding groove 214. One end of the water guide groove 214 flows into the water receiving groove 621 to prevent condensation water from entering the accommodating cavity 3 from the other end of the water guiding groove 214, thereby improving waterproofness.

In some embodiments, the end plate 4 further includes a side edge 215 and a water retaining rib 216, the side edge 215 is arranged on the lower edge of the second side of the end plate body 42, so that the condensation on the second side of the end plate 4 The dew collects on the side edge 215 under the action of gravity, and the side edge 215 extends to the water receiving groove 621, and the condensed water flows into the water receiving groove 621 along the side edge 215, so as to discharge all the condensed water on the second side of the end plate 4 the goal of. The water retaining rib 216 is disposed on the top of the side edge 215 . Since condensation water may also be produced on the second side of the end plate body 42, a side edge 215 for guiding the drainage of the condensation water is provided on the second side surface of the end plate body 42, and the condensation water flows along the edge of the side edge 215. The top flows into the water receiving tank 621. In addition, a water retaining rib 216 is provided on the top of the side edge 215, the condensation water flows out under the action of gravity, and the water retaining rib is arranged on the path of the condensation water flowing out to prevent the condensation water from flowing out, In this way, the condensed water is prevented from flowing to the machine cover of the indoor unit and seeping out of the machine cover, which is beneficial to improve drainage efficiency.

The shape of the water retaining rib 216 matches the shape of the side edge 215 . For example, the side edge 215 and the water retaining rib 216 are arc-shaped, etc., the first end of the water retaining rib 216 is connected to the side edge 215, and the second end of the water retaining rib 216 extends to the water receiving groove 621, and the curved water retaining rib 216 It can guide the condensed water to change the flow path, which is beneficial to improve the drainage efficiency and water retaining effect of the condensed water.

In some embodiments, the end plate 4 , the first convex edge 211 , the water guiding rib 212 , the side edge 215 and the water retaining rib 216 are integrally formed, and the overall structural strength is relatively high, which effectively prevents deformation.

The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Anyone familiar with the technical field who thinks of changes or substitutions within the technical scope of the present disclosure should cover all within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be determined by the protection scope of the claims.

Claims (20)

An air conditioner, comprising: outdoor unit; and The indoor unit is connected with the outdoor unit, and the air conditioner indoor unit includes: The casing has a first air inlet; A heat exchange air channel, one end of the heat exchange air channel communicates with the first air inlet; an indoor heat exchanger arranged in the heat exchange air duct; and The air channel box is arranged in the housing, the inside of the air channel box has a fresh air channel, and the fresh air channel communicates with the heat exchange air channel, and the air channel box includes: The first box is arranged on one side of the indoor heat exchanger, and the first end of the first box has a second air inlet; The second box is arranged on the side adjacent to the one side of the indoor heat exchanger, the first end of the second box has a fresh air outlet, the second air inlet, the fresh air The air outlet communicates with the fresh air duct, and the fresh air outlet communicates with the heat exchange air duct between the first air inlet and the indoor heat exchanger; and A corner, the first end of the corner is connected to the second end of the first box, the second end of the corner is connected to the second box, the first box, the second box The body and the corner communicate with each other. The air conditioner according to claim 1, wherein the air duct box further comprises: The first cover is arranged at the fresh air outlet, the first cover is used to cover the fresh air outlet, and the first cover has a through hole so that the fresh air outlet and the The heat exchange air passage between the first air inlet and the indoor heat exchanger is communicated; and The filter screen is arranged on the first cover and covers the through hole. The air conditioner according to claim 2, wherein the air duct box further comprises: The slide rail is arranged on the second box body, and the slide rail includes: The slide rail body, the position of the slide rail body corresponds to the position of the first cover, and the first cover slides on the first box through the slide rail body; an entry end, connected to the first end of the slide rail body, for the first cover to slide into the slide rail body along the entry end; and The installation end is connected with the second end of the slide rail body, and is used for fixing the first cover after sliding to the installation end. The air conditioner according to claim 3, wherein, The air duct box also includes: a first clamping piece, arranged on the entry end; The first cover includes: the first cover body; and The second clamping part is arranged at the position of the first cover body close to the entry end, and the second clamping part engages with the first clamping part to fix the first cover. The air conditioner according to claim 4, wherein, The air duct box also includes: The first limiting member is arranged at the installation end; The first cover also includes: The second limiting member is arranged at the position of the first cover body close to the installation end, and the second limiting member abuts against the first limiting member to prevent the first cover from sliding. The air conditioner according to claim 5, wherein the first cover further comprises: The guide piece is arranged on the first cover body, and the first limiter slides along the guide piece so that the second limiter abuts against the first limiter. The air conditioner according to claim 3, wherein the first cover further comprises: The plate body is arranged on one side of the first cover body, and the plane where the plate body is located forms an angle with the plane where the filter screen is located, so that the first cover body and the plate jointly cover the the fresh air outlet; and A stopper is arranged on one side of the board body, and the stopper is engaged with the fresh air outlet to cover the fresh air outlet. The air conditioner according to claim 1, wherein the indoor unit further comprises: a base body, arranged in the housing, and the indoor heat exchanger is arranged on the base body; and The installation groove is arranged on one side of the base body, and the installation groove is fixedly connected with the air duct box so that the air duct box is arranged on the base body. The air conditioner according to claim 8, wherein the indoor unit of the air conditioner further comprises: The mounting part is arranged on the base body and between the indoor heat exchanger and the air channel box, and the corner and the first box body are connected with the mounting part so that the The first box body is arranged on the base body through the installation part. The air conditioner according to claim 9, wherein, The mounts include: the mount body; and The water tank is arranged on one side of the body of the mounting part; The first box body includes: the first box body; and The first limiting part is arranged on the first box body, the first limiting part is inserted in the water receiving tank, and abuts against the tank wall of the water receiving tank, so as to prevent the first A box moves away from the mounting part. The air conditioner according to claim 10, wherein the indoor unit further comprises: The end plate is arranged on one side of the base body, the air channel box is arranged on the end plate, one side of the first box body is connected to the base body, and one side of the second box body The side is connected to the end plate. The air conditioner according to claim 11, wherein the end plate comprises: end plate body; and The platform is arranged on the end plate body, and the platform is attached to one side of the second box body. The air conditioner according to claim 12, wherein the end plate further comprises: A first protruding edge is arranged on the first side of the end plate body, and the first end of the first protruding edge is connected to the position of the heat exchange air channel close to the water receiving tank; and The water guide rib is arranged on the first convex edge, and the water guide rib extends toward the opening direction of the water receiving tank to cover the space between the first end of the first convex edge and the heat exchange air duct connection gap. The air conditioner according to claim 13, wherein the end plate further comprises: The second protruding edge is arranged on the first side surface of the end plate body, and the first end of the second protruding edge is spaced from the first end of the first protruding edge by a preset distance to form a A water guide connected to the water tank, the second end of the second protruding edge is connected to the second end of the first protruding edge. The air conditioner according to claim 11, wherein the second box body further comprises: the second box body; and The third limiting part is arranged on a side of the second box body close to the end plate, and the third limiting part is attached to one side of the end plate. The air conditioner according to claim 15, wherein the second box further comprises: The wind guide bend is arranged at the fresh air outlet, and the wind guide bend is used to guide the fresh air blown from the fresh air outlet to the place between the first air inlet and the indoor heat exchanger The heat exchange air duct between them. The air conditioner according to claim 10, wherein, The corners include: corner bodies; and The first fixing part is arranged on one side of the corner body; The mount also includes: a second fixing part, disposed on the mounting part body, the second fixing part is connected to the first fixing part; and The second limiting part is arranged on the mounting part body, the second limiting part is connected to the side of the corner away from the first limiting part, so as to prevent the air duct box from approaching the direction movement of the second limiting part. The air conditioner according to claim 1, wherein the air duct box further comprises: The joint pipe is arranged on the side of the first box body away from the second box body and communicates with the fresh air duct, and the nozzle of the joint pipe is the second air inlet. The air conditioner according to claim 18, wherein, The air conditioner also includes: A fresh air pipe communicates with the joint pipe, and the fresh air pipe is used to transport fresh air; The joint pipe includes: the fitting body; and The inverted teeth are arranged on the joint pipe body and arranged along the central axis of the joint pipe body, and the inverted teeth are used to connect with the mouth of the fresh air pipe. The air conditioner according to claim 1, wherein the air duct box further comprises: a second cover body, covering the opening of the first box; and The boss is arranged on the side of the second cover body away from the first box body, and the boss is used to abut against the housing so that the surface of the second cover body is in contact with the first box body. The surface of the box body is separated.

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