An indoor unit

Abstract

This invention provides an indoor unit, comprising: an indoor unit body having an air outlet; and a sweeping duct disposed at the air outlet, the sweeping duct including a lower guide plate and an upper guide plate, the lower and upper guide plates being used for sweeping air in the width direction of the air outlet; wherein the sweeping duct has a closed air outlet state and a guiding air outlet state; in the closed air outlet state, the upper guide plate retracts towards the end where the air inlet of the sweeping duct is located; in the guiding air outlet state, the upper guide plate extends away from the end where the air inlet of the sweeping duct is located. This invention solves the problem that existing air conditioners have a small air guiding area and poor air guiding effect, but lengthening the lower guide plate leads to interference between the lower guide plate and the upper diffuser section.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an indoor unit. Background Technology

[0002] To achieve full closure of the air outlet and wide-range air sweeping, most existing air conditioner indoor units use lower air guide plate technology. Currently, the design of the perforated lower air guide plate results in a small air guiding area and poor air guiding effect. However, lengthening the lower air guide plate will cause interference between the lower air guide plate and the upper diffuser section. Summary of the Invention

[0003] The problem solved by this invention is that the existing air conditioning has a small air guide area and poor air guiding effect, but lengthening the lower air guide plate will cause interference between the lower air guide plate and the upper diffuser section.

[0004] To address the aforementioned problems, the present invention provides an indoor unit, comprising: an indoor unit body having an air outlet; and a sweeping duct disposed at the air outlet, the sweeping duct including a lower guide plate and an upper guide plate, the lower guide plate and the upper guide plate being used for sweeping air in the width direction of the air outlet; wherein the sweeping duct has a closed air outlet state and a guiding air outlet state, in the closed air outlet state, the upper guide plate retracts towards the end where the air inlet of the sweeping duct is located, and in the guiding air outlet state, the upper guide plate extends away from the end where the air inlet of the sweeping duct is located.

[0005] The technical effects achieved by adopting this technical solution are as follows: In the air guiding state, the upper air guide plate extends. When the upper and lower air guide plates flip up and down to guide the air, the air guiding area of ​​the upper air guide plate is larger, and more air can be pressed downward on the outside of the air outlet, thereby improving the air guiding effect. In the closed air outlet state, the lower air guide plate flips upward to cover the air outlet, and the upper air guide plate also flips upward toward the upper diffusion section. At this time, the upper air guide plate retracts to avoid interference with the upper diffusion section.

[0006] Furthermore, the upper air guide plate includes a sliding part and a fixed part; the sliding part and the fixed part are slidably connected; in the closed air outlet state, the sliding part slides along the fixed part toward the air inlet end of the sweeping duct; in the air guiding state, the sliding part slides along the fixed part toward the direction away from the air inlet end of the sweeping duct.

[0007] The technical effects achieved by adopting this technical solution are as follows: the relative sliding of the sliding part and the fixed part can change the width of the upper air guide plate; the sliding part can avoid interference with the upper diffuser section by sliding away from the upper diffuser section; the sliding part can increase the air guide area by extending outward from the air outlet.

[0008] Furthermore, in the closed air outlet state, the end of the fixing part near the air inlet of the sweeping duct is lower than the end of the fixing part away from the air inlet of the sweeping duct; and / or, in the air guiding state, the end of the fixing part away from the air inlet of the sweeping duct is lower than the end of the fixing part near the air inlet of the sweeping duct.

[0009] The technical effects achieved by adopting this technical solution are as follows: When the air outlet is closed, the sliding part automatically slides towards the inside of the air outlet according to gravity, thereby moving away from the upper diffuser section. When the air is being guided, the sliding part automatically slides towards the outside of the air outlet according to gravity, thereby increasing the air guiding area. Therefore, the width of the upper air guide plate can be changed automatically without the need for electrical control, resulting in a simple structure and lower cost.

[0010] Furthermore, the upper air guide plate includes a support portion; wherein the support portion is connected to the fixed portion, and in the closed air vent state, the sliding portion is at least partially retracted and the sliding portion abuts against the support portion; or, the support portion is connected to the sliding portion, and in the closed air vent state, the sliding portion is at least partially retracted and the support portion abuts against the fixed portion.

[0011] The technical effect achieved by adopting this technical solution is as follows: When the air vent is closed, the sliding plate slides along the fixed part towards the inside of the air vent due to gravity, and is supported by the support part to prevent it from sliding further inward, thus achieving stable storage.

[0012] Furthermore, the support portion is located at one end of the fixed portion near the air inlet of the air-sweeping duct. In the closed air inlet state, the end of the sliding portion near the air inlet of the air-sweeping duct abuts against the fixed portion.

[0013] The technical effects achieved by adopting this technical solution are as follows: When the sliding part and the supporting part abut against each other, the end of the sliding part facing the inside of the air outlet can be as close as possible to the end of the fixed part facing the inside of the air outlet, thereby increasing the width of the sliding part. In the air guiding state, the sliding part extends a greater distance from the fixed part, thus further increasing the air guiding area and achieving a better air guiding effect.

[0014] Furthermore, the upper air guide plate includes a first limiting part and a second limiting part; wherein, the first limiting part is connected to the sliding part, the second limiting part is connected to the fixed part, and in the air guiding state, the sliding part extends at least partially and the first limiting part abuts against the second limiting part.

[0015] The technical effect achieved by adopting this technical solution is that when the first limiting part and the second limiting part abut against each other, the sliding part extends to the farthest position and will not further detach from the fixed part, thereby improving the stability of the upper air guide plate in the air guiding state.

[0016] Furthermore, the fixing part includes a sliding groove and a guide groove on at least one side of the sliding groove, the second limiting part is located at one end of the guide groove away from the air inlet of the sweeping tube; the first limiting part is located on at least one side of the sliding part, the sliding part slides in the sliding groove, and the first limiting part slides in the guide groove.

[0017] The technical effects achieved by adopting this technical solution are as follows: the first limiting part is located on the side of the sliding part, so that the first limiting part does not increase the thickness of the upper air guide plate, and the upper air guide plate is thinner and lighter; at the same time, the guide groove limits the left and right directions and the longitudinal direction of the first limiting part, preventing the sliding plate from moving in the left and right directions or in the longitudinal direction.

[0018] Furthermore, in the closed air vent state, the vertical projection of the end of the fixed part away from the air inlet of the sweeping duct on the lower air guide plate and the distance 'a' between the end of the lower air guide plate near the air inlet of the sweeping duct satisfy 1 / 3L1 < a < 2 / 3L1, where L1 is the width of the lower air guide plate.

[0019] The technical effects achieved by adopting this technical solution are as follows: when the air vent is closed, the fixed part will not come into contact with the upper diffuser section; at the same time, the fixed part is wide enough to accommodate a wider sliding part, so that the upper air guide plate has a larger air guiding area when the air is being guided.

[0020] Furthermore, the vertical projection of one end of the fixing part near the air inlet of the sweeping duct on the lower air guide plate extends further from either the end of the lower air guide plate near the air inlet of the sweeping duct or the end of the sweeping duct near the air inlet.

[0021] The technical effect achieved by adopting this technical solution is that the air guiding area of ​​the end of the air guide plate facing the inside of the air outlet is larger, and the air guiding effect is better.

[0022] Furthermore, the air duct also includes: an air duct base plate and air sweeping blades. The air duct base plate is disposed between the upper air guide plate and the lower air guide plate. The air duct base plate is rotatably connected to the lower air guide plate. The air sweeping blades connect the fixing part and the air duct base plate. An air guide cavity is formed between the air duct base plate and the upper air guide plate.

[0023] The technical effects achieved by adopting this technical solution are as follows: the upper air guide plate, the sweeping blades, and the bottom plate of the air duct can rotate together on the lower air guide plate, thereby adjusting the orientation of the air guide cavity and achieving the sweeping effect of the sweeping blades. The air duct simultaneously realizes the functions of sweeping and guiding air, saving space.

[0024] In summary, the above-mentioned technical solutions of this application can have one or more of the following advantages or beneficial effects: i) In the air guiding state, the upper air guide plate extends, and when the upper air guide plate and the lower air guide plate flip up and down to guide the air, the air guiding area of ​​the upper air guide plate is larger, and more air can be pressed downward on the outside of the air outlet, thereby improving the air guiding effect; ii) In the closed air outlet state, the lower air guide plate flips upward to cover the air outlet, and the upper air guide plate also flips upward toward the upper diffusion section. At this time, the upper air guide plate retracts to avoid interference with the upper diffusion section; iii) The sliding part can slide relative to the fixed part by gravity, automatically changing the width of the upper air guide plate, without the need for electrical control, and the structure is simple and the cost is lower; iv) When the first limiting part and the second limiting part abut, the sliding part extends to the farthest position and will not further detach from the fixed part. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of an indoor unit provided in an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the indoor unit with the air vents closed.

[0027] Figure 3 for Figure 1 Schematic diagram of the airflow configuration of the indoor unit;

[0028] Figure 4 for Figure 1 Another structural diagram of the indoor unit.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-Indoor unit; 101-Sweeping duct; 110-Indoor unit body; 111-Air outlet; 112-Upper diffuser section; 120-Lower air guide plate; 130-Upper air guide plate; 131-Sliding part; 132-Fixing part; 132a-Sliding groove; 132b-Guide groove; 133-Support part; 134-First limiting part; 135-Second limiting part; 140-Duct base plate; 150-Sweeping blade; 160-Rotating shaft. Detailed Implementation

[0031] The purpose of this invention is to provide an indoor unit that increases the air guide area, improves the air guide effect, and avoids interference between the lower air guide plate and the upper diffuser section.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] See Figures 1-4The present invention provides an indoor unit 100, which includes: an indoor unit body 110 having an air outlet 111; and a sweeping duct 101 disposed at the air outlet 111. The sweeping duct 101 includes a lower air guide plate 120 and an upper air guide plate 130, which are used to sweep air in the width direction of the air outlet 111. The sweeping duct 101 has a closed air outlet state and a guided air outlet state. In the closed air outlet state, the upper air guide plate 130 retracts toward the end where the air inlet of the sweeping duct 101 is located. In the guided air outlet state, the upper air guide plate 130 extends away from the end where the air inlet of the sweeping duct 101 is located.

[0034] In this embodiment, the top of the air outlet 111 is an upper diffuser section 112. In the air guiding state, the upper air guide plate 130 extends. When the upper air guide plate 130 and the lower air guide plate 120 flip up and down to guide the air, the air guiding area of ​​the upper air guide plate 130 is larger, and more air can be pressed downward on the outside of the air outlet 111, thereby improving the air guiding effect. In the closed air outlet state, the lower air guide plate 120 flips upward to cover the air outlet 111, and the upper air guide plate 130 also flips upward toward the upper diffuser section 112. At this time, the upper air guide plate 130 retracts to avoid interference with the upper diffuser section 112.

[0035] In one specific embodiment, the upper air guide plate 130 includes a sliding part 131 and a fixed part 132; the sliding part 131 and the fixed part 132 are slidably connected; in the closed air outlet state, the sliding part 131 slides along the fixed part 132 toward the air inlet end of the sweeping duct 101; in the air guiding state, the sliding part 131 slides along the fixed part 132 in a direction away from the air inlet end of the sweeping duct 101. It should be noted that the relative sliding of the sliding part 131 and the fixed part 132 can change the width of the upper air guide plate 130; the sliding part 131 sliding away from the upper diffuser section 112 can avoid interference with the upper diffuser section 112; the sliding part 131 extending outward from the air outlet 111 can increase the air guiding area.

[0036] The sliding part 131 can be driven by a transmission device to slide relative to the fixed part 132. For example, the sliding part 131 can be driven by a cylinder, gear rack, or other structure, which is not limited here. Of course, the sliding part 131 can also slide relative to the fixed part 132 by gravity.

[0037] In one specific embodiment, when the air vent is closed, the end of the fixing part 132 near the air inlet of the sweeping duct 101 is lower than the end of the fixing part 132 away from the air inlet of the sweeping duct 101; and / or, when the air is guided, the end of the fixing part 132 away from the air inlet of the sweeping duct 101 is lower than the end of the fixing part 132 near the air inlet of the sweeping duct 101. It should be noted that when the air vent is closed, the sliding part 131 automatically slides inward towards the air outlet 111 under gravity, achieving the effect of moving away from the upper diffuser section 112. When the air is guided, the sliding part 131 automatically slides outward towards the air outlet 111 under gravity, achieving the effect of increasing the air guiding area. Therefore, the width of the upper air guide plate 130 can be automatically changed without electrical control, resulting in a simple structure and lower cost.

[0038] In one specific embodiment, the upper air guide plate 130 includes a support portion 133; wherein, the support portion 133 is connected to the fixed portion 132, and when the air vent is closed, the sliding portion 131 is at least partially retracted and abuts against the support portion 133; or, the support portion 133 is connected to the sliding portion 131, and when the air vent is closed, the sliding portion 131 is at least partially retracted and the support portion 133 abuts against the fixed portion 132. It should be noted that, when the air vent is closed, the sliding plate slides along the fixed portion 132 towards the inside of the air outlet 111 due to gravity, and is abutted by the support portion 133 to prevent further inward sliding, thus achieving stable storage.

[0039] For example, the support part 133 can be connected to any position on the side of the sliding part 131 facing the fixed part 132, and the support part 133 is pressed against the end of the fixed part 132 away from the air outlet 111 by gravity; the support part 133 can also be connected to any position on the side of the fixed part 132 facing the sliding part 131, and the end of the sliding part 131 facing the inside of the air outlet 111 is pressed against the support part 133 by gravity.

[0040] Preferably, the support portion 133 is located at one end of the fixed portion 132 near the air inlet of the air-sweeping duct 101. When the air inlet is closed, the end of the sliding portion 131 near the air inlet of the air-sweeping duct 101 abuts against the fixed portion 132. It should be noted that when the sliding portion 131 abuts against the support portion 133, the end of the sliding portion 131 facing the inside of the air outlet 111 can be as close as possible to the end of the fixed portion 132 facing the inside of the air outlet 111, thereby increasing the width of the sliding portion 131. In the air-guiding state, the sliding portion 131 extends a greater distance beyond the fixed portion 132, thus further increasing the air-guiding area and achieving a better air-guiding effect.

[0041] In one specific embodiment, the upper air guide plate 130 includes a first limiting part 134 and a second limiting part 135; wherein, the first limiting part 134 is connected to the sliding part 131, and the second limiting part 135 is connected to the fixing part 132. In the air guiding state, the sliding part 131 extends at least partially and the first limiting part 134 abuts against the second limiting part 135. It should be noted that when the first limiting part 134 abuts against the second limiting part 135, the sliding part 131 extends to its farthest position and will not further detach from the fixing part 132, thereby improving the stability of the upper air guide plate 130 in the air guiding state.

[0042] In one specific embodiment, the fixing part 132 includes a sliding groove 132a and a guide groove 132b on at least one side of the sliding groove 132a. The second limiting part 135 is located at one end of the guide groove 132b away from the air inlet of the air sweeping tube 101. The first limiting part 134 is located on at least one side of the sliding part 131. The sliding part 131 slides in the sliding groove 132a, and the first limiting part 134 slides in the guide groove 132b. It should be noted that the first limiting part 134 is on the side of the sliding part 131, so that the first limiting part 134 does not increase the thickness of the upper air guide plate 130, making the upper air guide plate 130 thinner and lighter. At the same time, the guide groove 132b limits the first limiting part 134 in the left-right direction and longitudinal direction, preventing the sliding plate from moving in the left-right direction or longitudinal direction.

[0043] Preferably, there are two guide grooves 132b, which are located on both sides of the sliding groove 132a and are arranged facing each other. Similarly, the first limiting part 134 protrudes from the opposite sides of the sliding part 131, making the sliding of the sliding part 131 more stable.

[0044] Preferably, the width of the first limiting part 134 is at least 1 / 4 of the width of the sliding part 131, thereby increasing the area of ​​the first limiting part 134. In the direction perpendicular to the fixing part 132, the guide groove 132b has a better limiting effect on the first limiting part 134.

[0045] Preferably, the sliding part 131 can be a straight plate or an arc-shaped plate protruding from the upward expanding section 112; no limitation is made here. The shape of the sliding groove 132a matches that of the sliding part 131.

[0046] In one specific embodiment, when the air vent is closed, the vertical projection of the end of the fixing part 132 away from the air inlet of the sweeping duct 101 onto the lower air guide plate 120, and the distance 'a' between the end of the lower air guide plate 120 near the air inlet of the sweeping duct 101, satisfy 1 / 3L1 < a < 2 / 3L1, where L1 is the width of the lower air guide plate 120. It should be noted that the fixing part 132 does not contact the upper diffuser section 112 when the air vent is closed; simultaneously, the fixing part 132 is wide enough to accommodate a wider sliding part 131, thereby giving the upper air guide plate 130 a larger air guiding area when the air is being guided.

[0047] In one specific embodiment, the vertical projection of the end of the fixing part 132 near the air inlet of the sweeping duct 101 onto the lower air guide plate 120 extends from either the end of the lower air guide plate 120 near the air inlet of the sweeping duct 101 or the end of the sweeping duct 101 near the air inlet. It should be noted that the air guiding area of ​​the end of the secondary air guide plate facing the inside of the air outlet 111 is larger, resulting in better air guiding effect.

[0048] In one specific embodiment, the air-sweeping duct 101 further includes: a duct base plate 140 and sweeping blades 150. The duct base plate 140 is disposed between the upper guide plate 130 and the lower guide plate 120, and the duct base plate 140 is rotatably connected to the lower guide plate 120. The sweeping blades 150 are connected to the fixing part 132 and the duct base plate 140, and an air-guiding cavity is formed between the duct base plate 140 and the upper guide plate 130. It should be noted that the upper guide plate 130, the sweeping blades 150, and the duct base plate 140 can rotate together on the lower guide plate 120, thereby adjusting the orientation of the air-guiding cavity and achieving the sweeping effect of the sweeping blades 150. The air-sweeping duct 101 simultaneously realizes both sweeping and guiding functions, saving space.

[0049] Preferably, the projection of the end of the fixing part 132 near the outer side of the air outlet 111 onto the bottom plate 140 of the air duct, and the distance b between the end of the bottom plate 140 near the inner side of the air outlet 111, satisfy 1 / 3L2 < b < 2 / 3L2, where L2 is the width of the bottom plate 140 of the air duct.

[0050] In one specific embodiment, the indoor unit 100 further includes a rotating shaft 160, which is disposed between the air duct base plate 140 and the lower air guide plate 120. The rotating shaft 160 is fixed to the air duct base plate 140 and the lower air guide plate 120, and is rotatably connected to the other.

[0051] Preferably, the indoor unit 100 further includes a transmission link, with one end of the air duct base plate 140 facing the inside of the air outlet 111 connected to the transmission link. The transmission link controls the air duct base plate 140 to rotate about the rotating shaft 160, thereby realizing the sweeping action of the sweeping blades 150.

[0052] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An indoor unit, characterized in that, The indoor unit includes: The indoor unit body (110) has an air outlet (111). A sweeping duct (101) is provided at the air outlet (111). The sweeping duct (101) includes a lower guide plate (120) and an upper guide plate (130). The lower guide plate (120) and the upper guide plate (130) are used to sweep air in the width direction of the air outlet (111). The air-sweeping duct (101) has a closed air outlet state and a guided air outlet state. In the closed air outlet state, the upper guide plate (130) retracts toward the end where the air inlet of the air-sweeping duct (101) is located. In the guided air outlet state, the upper guide plate (130) extends in a direction away from the end where the air inlet of the air-sweeping duct (101) is located. The upper air guide plate (130) includes: a sliding part (131) and a fixed part (132); the sliding part (131) and the fixed part (132) are slidably connected; In the closed air vent state, the sliding part (131) slides along the fixed part (132) toward the air inlet end of the sweeping duct (101); in the air guiding state, the sliding part (131) slides along the fixed part (132) toward the direction away from the air inlet end of the sweeping duct (101). In the closed air vent state, the end of the fixing part (132) near the air inlet of the sweeping tube (101) is lower than the end of the fixing part (132) away from the air inlet of the sweeping tube (101); And / or, in the air guiding state, one end of the fixing part (132) away from the air inlet of the sweeping tube (101) is lower than one end of the fixing part (132) near the air inlet of the sweeping tube (101); The air duct (101) further includes: an air duct base plate (140) and air sweeping blades (150). The air duct base plate (140) is disposed between the upper air guide plate (130) and the lower air guide plate (120). The air duct base plate (140) is rotatably connected to the lower air guide plate (120). The air sweeping blades (150) connect the fixing part (132) and the air duct base plate (140). An air guide cavity is formed between the air duct base plate (140) and the upper air guide plate (130).

2. The indoor unit according to claim 1, characterized in that, The upper air guide plate (130) includes a support part (133); Wherein, the support part (133) is connected to the fixing part (132), and in the closed air vent state, the sliding part (131) is at least partially retracted and the sliding part (131) abuts against the support part (133), or the support part (133) is connected to the sliding part (131), and in the closed air vent state, the sliding part (131) is at least partially retracted and the support part (133) abuts against the fixing part (132).

3. The indoor unit according to claim 2, characterized in that, The support part (133) is located at one end of the fixed part (132) near the air inlet of the air-sweeping tube (101). In the closed air inlet state, the end of the sliding part (131) near the air inlet of the air-sweeping tube (101) abuts against the fixed part (132).

4. The indoor unit according to claim 1, characterized in that, The upper air guide plate (130) includes a first limiting part (134) and a second limiting part (135); The first limiting part (134) is connected to the sliding part (131), and the second limiting part (135) is connected to the fixing part (132). In the air guiding state, the sliding part (131) extends at least partially and the first limiting part (134) abuts against the second limiting part (135).

5. The indoor unit according to claim 4, characterized in that, The fixing part (132) includes a sliding groove (132a) and a guide groove (132b) on at least one side of the sliding groove (132a), and the second limiting part (135) is located at one end of the guide groove (132b) away from the air inlet of the sweeping tube (101). The first limiting part (134) is located on at least one side of the sliding part (131), the sliding part (131) slides in the sliding groove (132a), and the first limiting part (134) slides in the guide groove (132b).

6. The indoor unit according to claim 1, characterized in that, In the closed air vent state, the vertical projection of the end of the fixed part (132) away from the air inlet of the sweeping tube (101) on the lower air guide plate (120) and the distance a between the end of the lower air guide plate (120) close to the air inlet of the sweeping tube (101) satisfy 1 / 3L1 < a < 2 / 3L1, where L1 is the width of the lower air guide plate (120).

7. The indoor unit according to claim 1, characterized in that, The vertical projection of one end of the fixing part (132) near the air inlet of the sweeping duct (101) on the lower air guide plate (120) extends from one end of the lower air guide plate (120) near the air inlet of the sweeping duct (101) or the end of the sweeping duct (101) near the air inlet.

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