Air conditioner panel assembly, air conditioner and control method thereof

Abstract

The present invention provides an air conditioning panel assembly, an air conditioner and a control method thereof, wherein the panel assembly is connected to a front end panel of a middle frame, an air guide door is provided at an air outlet of the middle frame, and the panel assembly comprises an upper panel and a lower panel, and the lower panel is connected to the middle frame in a manner that it can be lifted, extended or recovered; when the lower panel is lifted to a maximum height, the outer side surface of the air guide door is fitted with the second lower end surface of the lower panel, ‑15mm≤D‑Hmax≤20mm, D is the width of the upper panel, and Hmax is the maximum lifting height of the lower panel; the air conditioning panel assembly, the air conditioner and a control method thereof described in the present invention solve the technical problem in the prior art that the air conditioning panel assembly is very likely to hit the ceiling when extended, and at the same time avoids the cold / hot air blown out of the air outlet from being re-sucked into the air conditioner by the front air outlet.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner panel assembly, an air conditioner and a control method thereof. Background Art

[0002] Air conditioners are used to regulate indoor air to keep it in the most suitable state for people. For example, in the summer when the indoor temperature is high, low-temperature air is blown into the room to cool it, while in the winter warm air is blown into the room to heat it.

[0003] Currently, split-type air conditioners are widely used. The indoor unit of a split-type air conditioner usually includes a middle frame, a base arranged on the back of the middle frame, and a panel assembly arranged on the front of the middle frame. Among them, some models in the prior art adopt the following technical solution: the air conditioner is provided with a support component on the middle frame and connected to the panel assembly; when the air conditioner is running, the panel assembly is extended under the drive of the support component and detached from the front surface of the middle frame, thereby expanding the air intake area of ​​the air conditioner. At this time, the panel assembly maintains a specified posture in the vertical direction under the support of the support component; however, in actual use of the air conditioner adopting this technical solution, if the upper end of the air conditioner is close to the ceiling, the panel assembly is very likely to hit the ceiling when extending, resulting in an inability to fully extend, thereby affecting the air intake of the air conditioner and even affecting the normal operation of the air conditioner;

[0004] In addition, the air outlet of the air conditioner is often set below the panel assembly, which is easy to happen after the panel assembly is extended. The cold / hot air blown out of the air outlet is sucked back into the air conditioner by the air inlet at the panel assembly, thereby affecting the cooling effect of the air conditioner. Summary of the invention

[0005] The problem solved by the present invention is that the air conditioning panel assembly in the prior art is very likely to hit the ceiling when extended.

[0006] In order to solve the above problems, the present invention provides an air conditioning panel assembly, wherein the panel assembly is connected to the front end panel of a middle frame, the middle frame is provided with an air guide door at the air outlet, the panel assembly comprises an upper panel and a lower panel, the lower panel is connected to the middle frame in a manner that it can be lifted, extended or recovered; when the lower panel is lifted to the maximum height, the outer side surface of the air guide door is in contact with the second lower end surface of the lower panel, -15mm≤D-Hmax≤20mm, D is the width of the upper panel, and Hmax is the maximum lifting height of the lower panel; thereby, by providing a split panel assembly and an air guide door cooperating with the panel assembly, on the one hand, the panel assembly is During the lifting and extending process, the ceiling above the air conditioner will not be hit, thus solving the technical problem in the prior art that the air conditioning panel assembly is very easy to hit the ceiling when extending, which is beneficial to ensuring the air intake of the air conditioner. On the other hand, the air guide door separates the space between the air outlet and the lower panel, preventing the cold / hot air blown out of the air outlet from being re-sucked into the air conditioner by the front air outlet, ensuring that the cold / hot air is always blown to the outside of the air conditioner, ensuring the cooling / heating effect of the air conditioner; in addition, for the split panel assembly, after the lower panel is fully lifted and extended, the lower panel can cover the upper panel to prevent users from seeing the two overlapping panels, thereby ensuring the beauty of the air conditioner.

[0007] Furthermore, when the lower panel is lifted and extended and the air outlet is opened, K4≥L, K4 is the distance between the second end face of the air guide door and the outer surface of the front end panel, and L is the protruding length of the lower panel; thus, on the basis that the air conditioner can take in air from the lower panel and discharge air from the air outlet, the air guide door can always block the space between the air outlet and the lower panel, thereby preventing the cold / hot air blown out of the air outlet from being re-sucked into the air conditioner by the front air outlet, thereby ensuring the cooling / heating effect of the air conditioner.

[0008] Furthermore, when the lower panel is not lifted and extended, the first lower end surface of the upper panel is in contact with the second upper end surface of the lower panel, and during the process of lifting and extending the lower panel, the first lower end surface and the second upper end surface can slide relative to each other without resistance; preferably, the first lower end surface of the upper panel is an inclined surface, the second upper end surface of the lower panel is an inclined surface, and the inclination angle of the first lower end surface in the vertical direction is equal to the inclination angle of the second upper end surface in the vertical direction; thereby, the lower panel can be lifted and extended more smoothly, avoiding space obstruction between the upper and lower panels, and ensuring the normal operation of the air conditioner.

[0009] Furthermore, side panels are arranged on both sides of the middle frame, and the side panels are connected to the front end panel through an assembly arc surface; the upper panel includes an upper panel body and a first arc panel arranged on both sides of the upper panel body; the upper panel body is clamped with the front end panel, and the first arc panel cooperates with the assembly arc surface, and / or the lower panel includes a lower panel body and a second arc panel arranged on both sides of the lower panel body; when the lower panel is not lifted and extended, the lower panel body is fitted with the front end panel, and the second arc panel cooperates with the assembly arc surface; the curvature of the first arc panel is smaller than the curvature of the assembly arc surface, and a hand-clasping space is formed between the first arc panel and the assembly arc surface, and / or the curvature of the second arc panel is smaller than the curvature of the assembly arc surface, and a hand-clasping space is formed between the second arc panel and the assembly arc surface; this facilitates users to disassemble or assemble the upper panel or the lower panel, which is beneficial to improving the convenience of disassembly and assembly of the air conditioner.

[0010] Furthermore, the front end plate is provided with mounting plates on both sides of the air outlet, and the air guide door includes a door panel body, a mounting plate is provided on the inner side of the door panel body, a rotating shaft is provided on the mounting plate, and an mounting hole matching the rotating shaft is provided on the mounting plate; the distance from the center axis of the mounting hole to the uppermost port of the air outlet is recorded as K5, and the distance from the center axis of the mounting hole to the lowermost port of the air outlet is recorded as K6, K5=K6; thereby, when the air guide door is closed, its outer side surface can be aligned with the lowermost port of the air outlet, which is beneficial to improving the aesthetic performance of the air conditioner; when the air guide door is fully opened, its outer side surface can fit with the uppermost port of the air outlet, so that the air guide door can completely block the space between the air outlet and the lower panel, thereby improving the cooling / heating performance of the air conditioner.

[0011] Furthermore, a support frame is arranged on the middle frame, and the support frame at least includes a lifting arm, one end of the lifting arm is connected to the inner side surface of the lower panel, and the other end of the lifting arm is connected to the middle frame; wherein, when the lower panel is in a fully retracted state, the lifting arm is in a vertical state; when the lower panel is in a fully lifted and extended state, the lifting arm is in a horizontal state; wherein, Lmax=Hmax=K3, Lmax is the maximum extension length of the lower panel, H is the maximum lifting height of the lower panel, and K3 is the arm length of the lifting arm; at the same time, -15mm≤D-Lmax≤20mm; -15mm≤D-K3≤20mm; thereby, on the one hand, limiting the lifting and extension of the lower panel is achieved, and on the other hand, the size and structure of related components in the air conditioner are optimized, forming a set of parts and components that are interrelated in structure and nearly standardized in size, which is conducive to the production and processing of various components of the air conditioner, and at the same time, it is convenient to assemble related components of the air conditioner, which is beneficial to the mass production process of air conditioner manufacturers and improves the production efficiency of air conditioners.

[0012] An air conditioner includes an air conditioner panel assembly as described above, so that the panel assembly will not hit the ceiling above the air conditioner during the lifting and extension process, thereby solving the technical problem in the prior art that the air conditioner panel assembly is very likely to hit the ceiling when extending, and at the same time is conducive to ensuring the cooling / heating effect of the air conditioner.

[0013] A control method for an air conditioner, the air conditioner includes an air conditioner panel assembly, the method includes: lifting and extending a lower panel; obtaining the lifting height of the lower panel; judging whether the lifting height of the lower panel reaches a preset value; rotating an air guide door, opening an air outlet, and keeping the outer side surface of the air guide door in contact with the second lower end surface of the lower panel; thereby ensuring the normal start-up and operation of the air conditioner, especially the normal progress of the lower panel lifting process.

[0014] Compared with the prior art, the air conditioner panel assembly, air conditioner and control method thereof described in the present invention have the following beneficial effects:

[0015] The air conditioning panel assembly, air conditioner and control method thereof described in the present invention, by providing a split panel assembly and an air guide door cooperating with the panel assembly, on the one hand, prevents the panel assembly from hitting the ceiling above the air conditioner during the lifting and extending process, thereby solving the technical problem in the prior art that the air conditioning panel assembly is very likely to hit the ceiling when extending, which is beneficial to ensuring the air intake of the air conditioner; on the other hand, the air guide door blocks the space between the air outlet and the lower panel, preventing the cold / hot air blown out of the air outlet from being re-sucked into the air conditioner by the front air outlet, ensuring that the cold / hot air is always blown out to the outside of the air conditioner, thereby ensuring the cooling / heating effect of the air conditioner; in addition, for the split panel assembly, after the lower panel is fully lifted and extended, the lower panel can block the upper panel to prevent the user from seeing the two overlapping panels, thereby ensuring the beauty of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded schematic diagram of an air conditioner according to an embodiment of the present invention;

[0017] Figure 2 It is an axonometric diagram of a middle frame of an air conditioner according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic structural diagram of a middle frame of an air conditioner according to an embodiment of the present invention;

[0019] Figure 4 For the present invention Figure 3 A partial enlarged view of the middle A;

[0020] Figure 5 A schematic structural diagram of an upper panel of an air conditioning panel assembly according to an embodiment of the present invention;

[0021] Figure 6A side view of an upper panel of an air conditioning panel assembly according to an embodiment of the present invention;

[0022] Figure 7 A schematic structural diagram of a lower panel of an air conditioning panel assembly according to an embodiment of the present invention;

[0023] Figure 8 It is a cross-sectional schematic diagram of a lower panel of an air-conditioning panel assembly according to an embodiment of the present invention on its lower plate body;

[0024] Fig. 9 This is a schematic structural diagram of an air guide door of an air conditioner according to an embodiment of the present invention;

[0025] Fig.10 A side view of an air guide door of an air conditioner according to an embodiment of the present invention;

[0026] Fig.11 This is a schematic structural diagram of a support frame of an air conditioner according to an embodiment of the present invention;

[0027] Fig.12 An axonometric view and a top view of an air conditioner in a non-operating state according to an embodiment of the present invention;

[0028] Fig.13 For the present invention Fig.12 A partial enlarged view of point B in the middle;

[0029] Fig.14 An axonometric view and a top view of an air conditioner in operation according to an embodiment of the present invention;

[0030] Fig.15 For the present invention Fig.14 Sectional view along CC direction;

[0031] Fig.16 A schematic side comparison diagram of an air conditioner in a non-operating / operating state according to an embodiment of the present invention;

[0032] Fig.17 This is a schematic diagram of an air conditioner according to an embodiment of the present invention when the maximum lifting height of the lower panel is the minimum value;

[0033] Fig.18 This is a schematic diagram of an air conditioner according to an embodiment of the present invention when the maximum lifting height of the lower panel is at a maximum value.

[0034] Description of reference numerals:

[0035] 1-middle frame, 11-top plate, 111-upper air inlet, 12-front end plate, 121-front air inlet, 122-card hole, 123-assembly groove, 13-bottom plate, 14-side plate, 141-protective protrusion, 15-air outlet, 151-assembly plate, 152-assembly hole, 16-assembly arc surface, 2-upper panel, 21-upper plate body, 211-first upper end surface, 212-first lower end surface, 22-first arc plate, 23 -claw, 3-lower panel, 31-lower plate body, 311-second upper end surface, 312-second lower end surface, 32-second arc plate, 4-air guide door, 41-door plate body, 411-inner side surface, 412-outer side surface, 413-first end surface, 414-second end surface, 42-mounting plate, 43-rotating shaft, 5-support frame, 51-lifting arm, 511-driving hole, 52-connecting arm, 53-connecting shaft, 6-hand-clamping space. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that all the terms related to directions in the present invention are described in terms of directions of the air conditioner after conventional assembly and under conventional installation and use.

[0037] Example 1

[0038] In the prior art, some models adopt the following technical solutions: the air conditioner includes a middle frame, a support component, and a panel assembly, one end of the support component is connected to the middle frame, and the other end of the support component is connected to the panel assembly, and the support component can rotate or move relative to the middle frame, thereby driving the panel assembly to be lifted, extended or retracted; when the air conditioner is not running, the support component and the panel assembly are both in a retracted state, and the panel assembly is attached or matched to the front surface of the middle frame. At this time, the appearance of the air conditioner is no different from other conventional air conditioners; when the air conditioner is running, driven by the support component, the panel assembly is lifted, extended and detached from the front surface of the middle frame, so as to expand the air intake area of ​​the air conditioner. At this time, the panel assembly maintains a specific posture in the vertical direction under the support of the support component;

[0039] However, during actual use of the air conditioner adopting the above technical solution, if the upper end of the air conditioner is close to the ceiling, the panel assembly is very likely to hit the ceiling when extended, resulting in failure to fully extend, thereby affecting the air intake of the air conditioner and even affecting the normal operation of the air conditioner.

[0040] Therefore, in order to solve the technical problem that the air conditioning panel assembly in the prior art is very easy to hit the ceiling when extending, as shown in the attached Figure 1-16As shown, the present embodiment proposes an air conditioner, which includes a middle frame 1 and a panel assembly, wherein the panel assembly is connected to a front end panel 12 of the middle frame 1, and the panel assembly includes an upper panel 2 and a lower panel 3, wherein the upper panel 2 is connected to the middle frame 1 in a detachable manner, a support frame 5 is arranged on the middle frame 1, and the lower panel 3 is connected to the middle frame 1 through the support frame 5 in a manner that it can be lifted, extended or recovered, and a front air inlet 121 cooperating with the lower panel 3 is arranged on the front end panel 12 of the middle frame 1, so that when the lower panel 3 is lifted and extended, the front air inlet 121 is opened, and when the lower panel 3 is recovered, the front air inlet 121 is closed; during the lifting process of the lower panel 3, the width of the upper panel 2 is recorded as D, the lifting height of the lower panel 3 is recorded as H, and its maximum lifting height is recorded as Hmax, the extension length of the lower panel 3 is recorded as L, and its maximum extension length is recorded as Lmax; when the lower panel 3 is lifted to the maximum height, -15mm≤D-Hmax≤20mm.

[0041] Specifically, the first upper end surface 211 of the upper panel 2 is flush with the upper surface of the top plate 11 of the middle frame 1, so that when the upper end of the air conditioner is close to the ceiling, by setting the relationship between the maximum lifting height of the lower panel 3 and the width of the upper panel 2, when the lower panel 3 is lifted to the maximum lifting height, the second upper end surface 311 of the lower panel 3 is basically flush with the top surface of the air conditioner, so that the lower panel 3 will not touch the ceiling above the air conditioner during the lifting and extension process, thereby solving the technical problem in the prior art that the air conditioning panel assembly is very easy to touch the ceiling when extending; at the same time, since the lengths of the upper panel 2 and the lower panel 3 are basically the same, after the lower panel 3 is fully lifted and extended, the lower panel 3 can block the upper panel 2 to prevent users from seeing the two overlapping panels, thereby ensuring the beauty of the air conditioner.

[0042] As for the clamping connection between the upper panel 2 and the middle frame 1, a clamping claw 23 is provided on the inner side surface of the upper plate body 21 of the upper panel 2, and a clamping hole 122 is provided on the front end plate 12 of the middle frame 1. The clamping claw 23 is clamped with the clamping hole 122, so as to facilitate the disassembly or assembly of the upper panel 2 and the middle frame 1 on the one hand, and ensure the reliability of the connection between the upper panel 2 and the middle frame 1 on the other hand, so that no relative movement will occur between the upper panel 2 and the middle frame 1.

[0043] As for the connection between the lower panel 3 and the middle frame 1, the middle frame 1 is provided with an assembly groove 123 on the front end plate 12, and the support frame 5 at least includes a lifting arm 51, one end of the lifting arm 51 is connected to the inner side surface of the lower panel 3, and the other end of the lifting arm 51 is arranged in the assembly groove 123 and connected to the middle frame 1. Specifically, a driving hole 511 is arranged on the end of the lifting arm 51 connected to the middle frame 1, and the driving hole 511 is connected to the driving mechanism (not shown) provided on the middle frame 1, so that under the drive of the driving mechanism, the lifting arm 51 drives the lower panel 3 to lift and extend. When the lower panel 3 is fully recovered, the assembly groove 123 completely accommodates the lifting arm 51, and the inner side surface of the lower panel 3 is basically completely in contact with the outer side surface of the front end plate 12 of the middle frame 1, which is beneficial to improve the aesthetic performance of the air conditioner when it is not in operation.

[0044] Preferably, the support frame 5 includes a connecting arm 52 and at least one lifting arm 51, one end of the lifting arm 51 is arranged in the assembly groove 123, and the other end of the lifting arm 51 is hinged to the connecting arm 52, and the connecting arm 52 is connected to the inner side surface of the lower panel 3. Therefore, by additionally setting the connecting arm 52, the connection area between the support frame 5 and the lower panel 3 is increased, which is beneficial to improving the connection reliability and supporting stability of the support frame 5 to the lower panel 3.

[0045] Driven by the support frame 5, the arm length of the lifting arm 51 is recorded as K3; preferably, when the lower panel 3 is fully retracted, the lifting arm 51 is in a vertical state, and when the lower panel 3 is fully lifted and extended, the lifting arm 51 is in a horizontal state, wherein Lmax=Hmax=K3; at this time, the air conditioner also has the following dimensional relationship:

[0046] -15mm≤D-Lmax≤20mm;

[0047] -15mm≤D-K3≤20mm;

[0048] Thereby optimizing the size and structure of the relevant parts in the air conditioner, forming a set of parts families that are interrelated in structure and nearly standardized in size, which is conducive to the production and processing of various parts of the air conditioner, and at the same time facilitates the assembly of the relevant parts of the air conditioner, which is beneficial to the mass production process of air conditioner manufacturers and improves the production efficiency of air conditioners.

[0049] In the specific production and life application process, if the top surface of the air conditioner is in contact with the ceiling, 0mm≤D-Hmax≤20mm, so that when the lower panel 3 is at the maximum lifting height, the second upper end surface 311 of the lower panel 3 will not exceed the top surface of the air conditioner, ensuring the normal opening of the front air outlet 121 and the normal operation of the air conditioner; wherein, if the upper surface of the top plate 11 of the middle frame 1 is regarded as the top surface of the air conditioner, and the distance between the second upper end surface 311 of the lower panel 3 and the upper surface of the top plate 11 is recorded as K2, then 0mm≤K2≤20mm; in the attached Fig.17 When the maximum lifting height of the lower panel 3 is the minimum value, that is, D-Hmax=20mm, the upper panel 2 is still not visible at the observation point E, so that the upper panel 2 can be shielded within the field of view to ensure the aesthetic performance of the air conditioner. Preferably, when the lower panel 3 is at the maximum lifting height, D-Hmax=0mm, that is, the second upper end surface 311 of the lower panel 3 is flush with the first upper end surface 211 of the upper panel 2.

[0050] If the top surface of the air conditioner is at a certain distance from the ceiling, an upper air inlet 111 can be provided on the top plate 11 of the middle frame 1, so that after the lower plate 3 is lifted and extended, the air conditioner can not only take in air from the front air inlet 121, but also take in air from the upper air inlet 111, thereby increasing the air inlet area of ​​the air conditioner and facilitating the improvement of the cooling / heating efficiency of the air conditioner. In addition, the second upper end surface 311 of the lower plate 3 can exceed the top surface of the air conditioner, as shown in the attached figure. Fig.18 As shown, △H is the distance that the second upper end surface 311 of the lower panel 3 exceeds the top surface of the air conditioner; when the maximum lifting height of the lower panel 3 is the maximum value, that is, D-Hmax=-15mm, the corresponding △H=15mm. Combined with the support frame 5 in this embodiment, not only the maximum lifting height of the lower panel 3 is increased, but also the extended length of the lower panel 3 is increased, thereby increasing the air intake space between the lower panel 3 and the front end panel 12, which is beneficial to increase the air intake volume of the front air inlet 121 and improve the cooling / heating performance of the air conditioner.

[0051] In addition, for the air conditioner, an air outlet 15 is provided at the lower side of the middle frame 1 for air conditioning outlet, and an air guide door 4 is provided at the air outlet 15 for opening or closing the air outlet 15; in order to prevent the cold / hot air blown out of the air outlet from being sucked back into the air conditioner by the front air outlet 121, this embodiment introduces the air outlet 15, the air guide door 4, and the matching relationship between the air guide door 4 and the panel assembly of the air conditioner;

[0052] The air outlet 15 is arranged at the connection between the front end plate 12 and the bottom plate 13 of the middle frame 1, and the air outlet 15 partially penetrates the front end plate 12 and the bottom plate 13, and the front end plate 12 is provided with assembly plates 151 on both sides of the air outlet 15, and the assembly plates 151 are used to assemble with the air guide door 4; specifically, the air guide door 4 includes a door panel body 41, and the door panel body 41 is provided with a mounting plate 42 on the inner side surface 411, and the mounting plate 42 is provided with a rotating shaft 43, and the assembly plate 151 is provided with an assembly hole 152 matching the rotating shaft 43, so that the air guide door 4 can rotate along the rotating shaft 43, and the air outlet 15 is opened or closed; wherein the driving device connected to the rotating shaft 43 provides a rotational torque for the air guide door 4. Since there are various air guide door driving devices and their assembly relationships in the prior art, they are not described here.

[0053] When the air conditioner is not running, the lower panel 3 is in a completely retracted state, the door panel body 41 of the air guide door 4 is in a horizontal state, and the outer side surface 412 of the door panel body 41 faces downward. At this time, the outer side surface 412 of the door panel body 41 is flush with the outer side of the bottom plate 13 of the middle frame 1, and the air guide door 4 closes the air outlet structure on the bottom plate 13; the second upper end surface 311 of the lower panel 3 is almost in contact with the first lower end surface 212 of the upper panel 2, and the second lower end surface 312 of the lower panel 3 is in contact with the first end surface 413 of the door panel body 41, so that the air outlet structure on the front end panel 12 is closed through the cooperation of the lower panel 3 and the air guide door 4; this enables the lower panel 3 and the air guide door 4 to jointly close the entire air outlet 15, and at the same time makes the air conditioner more flat and compact in appearance, which is beneficial to improving the aesthetic performance of the air conditioner.

[0054] When the air conditioner is running, the lower panel 3 is in a lifted and extended state, and the air guide door 4 flips along the rotating shaft 43, first opening the air outlet structure on the bottom plate 13, and then as the door panel body 41 rotates, the second end surface 414 of the door panel body 41 flips forward and exceeds the front surface of the front end panel 12 of the middle frame 1. During this process, the air outlet structure on the front end panel 12 is also gradually opened. In order to prevent the cold / hot air blown out of the air outlet from being re-sucked into the air conditioner by the front air inlet 121, the outer side surface 412 of the door panel body 41 is always in contact with the second lower end surface 312 of the lower panel 3, and they are lifted together until the lower panel 3 reaches the maximum lifting height Hmax; or the lower panel 3 is lifted to the maximum After the height is raised, the air guide door 4 rotates until the outer side surface 412 of the air guide door 4 is in contact with the second lower end surface 312 of the lower panel 3; wherein the distance between the second end surface 414 of the air guide door 4 and the outer surface of the front end panel 12 is recorded as K4. Then, in the process that the lower panel 3 is lifted and extended and the air outlet 15 is opened, K4≥L is always present. Therefore, on the basis that the air conditioner can take in air from the lower panel 3 and discharge air from the air outlet 15, the air guide door 4 is used to block the space between the air outlet 15 and the lower panel 3, thereby preventing the cold / hot air blown out of the air outlet from being re-absorbed into the air conditioner by the front air outlet 121, thereby ensuring that the cold / hot air is always blown out to the outside of the air conditioner, thereby ensuring the cooling / heating effect of the air conditioner.

[0055] Correspondingly, as a preferred solution, when the lower panel 3 reaches the maximum lifting height, the air guide door 4 also reaches the maximum opening state. At this time, the door panel body 41 of the air guide door 4 is in a horizontal state, and the outer side surface 412 of the door panel body 41 is facing upward, and the air outlet 15 is in a fully open state; at this time, the outer side surface 412 of the door panel body 41 is in contact with the second lower end surface 312 of the lower panel 3, and also in contact with the uppermost end of the air outlet 15, so that the air guide door 4 can completely separate the air outlet 15 from the lower panel 3.

[0056] In addition, in order to ensure that the air guide door 4 structurally completely covers the air outlet 15 when closed, and completely separates the air outlet 15 from the lower panel 3 when fully opened, in the actual air-conditioning production process, the distance from the center axis of the assembly hole 152 to the uppermost port of the air outlet 15 is recorded as K5, and the distance from the center axis of the assembly hole 152 to the lowermost port of the air outlet 15 is recorded as K6, then K5=K6, wherein the center axis of the assembly hole 152 and the rotating shaft 43 of the air guide door 4 are coaxially arranged, so that when the air guide door 4 is closed, its outer side surface 412 can be aligned with the lowermost port of the air outlet 15, which is beneficial to improving the aesthetic performance of the air conditioner; when it is fully opened, its outer side surface 412 can fit with the uppermost port of the air outlet 15, so that the air guide door 4 can completely block the space between the air outlet 15 and the lower panel 3, thereby improving the cooling / heating performance of the air conditioner.

[0057] Example 2

[0058] As attached Figure 5-8 As shown, this embodiment introduces the relationship between the upper panel 2 and the lower panel 3 based on the embodiment 1.

[0059] When the lower panel 3 is not lifted and extended, the first lower end surface 212 of the upper panel 2 is in contact with the second upper end surface 311 of the lower panel 3. During the lifting and extending process of the lower panel 3, the first lower end surface 212 and the second upper end surface 311 can slide against each other without resistance. Preferably, the first lower end surface 212 of the upper panel 2 is an inclined surface, and the second upper end surface 311 of the lower panel 3 is an inclined surface, and the inclination angle of the first lower end surface 212 in the vertical direction is equal to the inclination angle of the second upper end surface 311 in the vertical direction. Preferably, the inclination angle of the first lower end surface 212 / the second upper end surface 311 in the vertical direction is 30°-60°. Thereby, the lower panel 3 can be lifted and extended more smoothly, avoiding space obstruction between the upper panel 2 and the lower panel 3, and ensuring the normal operation of the air conditioner.

[0060] Example 3

[0061] As attached Figure 12-13 As shown, this embodiment further introduces the assembly of the upper panel 2 and the lower panel 3 based on the embodiment 1.

[0062] Side panels 14 are provided on both sides of the middle frame 1, and the side panels 14 are connected to the front end panel 12 through an assembled curved surface 16;

[0063] The upper panel 2 includes an upper plate body 21 and first arc plates 22 arranged on both sides of the upper plate body 21; the lower panel 3 includes a lower plate body 31 and second arc plates 32 arranged on both sides of the lower plate body 31;

[0064] The upper plate body 21 is engaged with the front end plate 12, the first arc plate 22 is engaged with the assembly arc surface 16, and the curvature of the first arc plate 22 is smaller than the curvature of the assembly arc surface 16, so that a hand-gripping space 6 is formed between the first arc plate 22 and the assembly arc surface 16, so that the user can disassemble or assemble the upper panel 2;

[0065] When the lower panel 3 is completely retracted, the lower plate body 31 is fitted with the front end plate 12, and the second arc plate 32 is matched with the assembly arc surface 16. Similarly, the curvature of the second arc plate 32 is smaller than the curvature of the assembly arc surface 16, so that a hand-gripping space 6 is formed between the second arc plate 32 and the assembly arc surface 16, so that the user can disassemble or assemble the lower panel 3.

[0066] In addition, since the first arc plate 22 and the second arc plate 32 are structures that extend beyond the side plate 14, they are easily scratched by external foreign objects during the transportation, handling, and installation of the air conditioner, resulting in damage to the panel assembly. In order to protect the first arc plate 22 and the second arc plate 32, a protective protrusion 141 is provided on the side plate 14 of the middle frame 1; the protrusion length of the protective protrusion 141 on the side plate 14 is ≥ the length of the first arc plate 22 / the second arc plate 32 extending beyond the side plate 14; for the convenience of explanation, as shown in the attached Fig.13 As shown, the length of the protective protrusion 141 exceeding the first arc plate 22 / the second arc plate 32 is recorded as K1, and K1 is the difference between the protruding length of the protective protrusion 141 on the side plate 14 and the length of the first arc plate 22 / the second arc plate 32 exceeding the side plate 14, that is, K1≥0; thus, during the transportation and installation of the air conditioner, the first arc plate 22 and the second arc plate 32 are protected by setting the protective protrusion 141.

[0067] Example 4

[0068] During the air conditioner startup process, in order to facilitate the corresponding control of the air conditioner panel assembly, the air guide door 4 and other structures to ensure that the air conditioner is normally started, this embodiment, based on any one of Embodiments 1 to 3, proposes an air conditioner control method, including:

[0069] The lower panel 3 is lifted and extended; wherein, the lifting arm 51 is driven to rotate by the driving mechanism, thereby driving the lower panel 3 to be lifted and extended.

[0070] Obtain the lifting height of the lower panel 3; wherein, by setting a corresponding motion sensor or position detector on the air conditioner, the actual lifting height of the lower panel 3 is detected, which is regarded as the lifting height of the lower panel 3; or by directly detecting the operation status of the driving mechanism and calculating the theoretical lifting height of the lower panel 3, which is regarded as the lifting height of the lower panel 3.

[0071] Determine whether the lifting height of the lower panel 3 reaches the preset value; when the lifting height of the lower panel 3 reaches the preset value, it means that the lower end of the lower panel 3 moves a certain space, so that the air guide door 4 will not be hindered by the space and can be rotated.

[0072] Rotate the air guide door 4 to open the air outlet 15, and keep the outer side surface 412 of the air guide door 4 in contact with the second lower end surface 312 of the lower panel 3; driven by the air guide door driving device, the air guide door 4 rotates along the rotating shaft 43 as the rotating axis to open the air outlet 15.

[0073] The air conditioner is running; at this time, other parts related to the air conditioner are running, such as the compressor is running, the air guide blades are swinging, etc.

[0074] In addition, during the lifting process of the lower panel 3, the method further comprises:

[0075] It is determined whether the lifting height change of the lower panel 3 within a unit time is 0 mm; when the lifting height change of the lower panel 3 within a unit time is 0 mm, it indicates that the lower panel 3 is no longer lifted.

[0076] Determine whether the current lifting height of the lower panel 3 reaches the maximum rated value; if the current lifting height of the lower panel 3 reaches the maximum rated value, it means that the lower panel 3 reaches the maximum lifting height. If it does not reach the maximum rated value, it means that the lifting of the lower panel 3 is blocked, the motor fails, or the transmission fails, and the alarm is activated.

[0077] Therefore, the control method of this embodiment ensures the normal start-up and operation of the air conditioner, especially the normal progress of the lifting process of the lower panel 3, and at the same time realizes the fault alarm of the lifting process of the lower panel 3.

[0078] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An air conditioner panel assembly, the panel assembly being connected to a front end plate (12) of a middle frame (1), the middle frame (1) being provided with an air guide door (4) at an air outlet (15), characterized in that: The panel assembly comprises an upper panel (2) and a lower panel (3), wherein the lower panel (3) is connected to the middle frame (1) in a manner capable of being lifted, extended or retracted; when the lower panel (3) is lifted to a maximum height, the outer side surface (412) of the air guide door (4) is in contact with the second lower end surface (312) of the lower panel (3), -15mm≤D-Hmax≤20mm, D is the width of the upper panel (2), and Hmax is the maximum lifting height of the lower panel (3); When the lower panel (3) is lifted and extended and the air outlet (15) is opened, K4≥L, K4 is the distance between the second end surface (414) of the air guide door (4) and the outer surface of the front end panel (12), and L is the extended length of the lower panel (3); When the lower panel (3) is not lifted and extended, the first lower end surface (212) of the upper panel (2) is in contact with the second upper end surface (311) of the lower panel (3); when the lower panel (3) is lifted and extended, the first lower end surface (212) and the second upper end surface (311) can slide relative to each other without resistance; The first lower end surface (212) of the upper panel (2) is an inclined surface, the second upper end surface (311) of the lower panel (3) is an inclined surface, and the inclination angle of the first lower end surface (212) in the vertical direction is equal to the inclination angle of the second upper end surface (311) in the vertical direction; Side panels (14) are arranged on both sides of the middle frame (1), and the side panels (14) are connected to the front end panel (12) through an assembly arc surface (16); the upper panel (2) includes an upper panel body (21) and a first arc panel (22) arranged on both sides of the upper panel body (21); the upper panel body (21) is snap-connected with the front end panel (12), and the first arc panel (22) cooperates with the assembly arc surface (16), and / or the lower panel (3) includes a lower panel body (31) and a second arc panel (32) arranged on both sides of the lower panel body (31); when the lower panel (3) is not lifted and extended, the lower panel body (31) is in contact with the front end panel (12), and the second arc panel (32) cooperates with the assembly arc surface (16).

2. An air conditioning panel assembly according to claim 1, characterized in that: The curvature of the first arc plate (22) is smaller than the curvature of the assembly arc surface (16), and a hand-gripping space (6) is formed between the first arc plate (22) and the assembly arc surface (16), and / or, The curvature of the second arc plate (32) is smaller than the curvature of the assembly arc surface (16), and a hand-engaging space (6) is formed between the second arc plate (32) and the assembly arc surface (16).

3. An air conditioning panel assembly according to claim 1, characterized in that: The front end plate (12) is provided with assembly plates (151) on both sides of the air outlet (15); the air guide door (4) comprises a door plate body (41); a mounting plate (42) is provided on the inner side surface (411) of the door plate body (41); a rotating shaft (43) is provided on the mounting plate (42); and an assembly hole (152) matching the rotating shaft (43) is provided on the assembly plate (151).

4. An air conditioning panel assembly according to claim 3, characterized in that: The distance between the center axis of the assembly hole (152) and the uppermost port of the air outlet (15) is recorded as K5, and the distance between the center axis of the assembly hole (152) and the lowermost port of the air outlet (15) is recorded as K6, K5=K6.

5. The air conditioning panel assembly according to claim 1, characterized in that: A support frame (5) is arranged on the middle frame (1), and the support frame (5) at least comprises a lifting arm (51), one end of the lifting arm (51) is connected to the inner side surface of the lower panel (3), and the other end of the lifting arm (51) is connected to the middle frame (1).

6. An air conditioning panel assembly according to claim 5, characterized in that: When the lower panel (3) is in a fully retracted state, the lifting arm (51) is in a vertical state; when the lower panel (3) is in a fully raised and extended state, the lifting arm (51) is in a horizontal state; wherein Lmax=Hmax=K3, Lmax is the maximum extended length of the lower panel (3), H is the maximum lifting height of the lower panel (3), and K3 is the arm length of the lifting arm (51).

7. An air conditioning panel assembly according to claim 6, characterized in that: -15mm≤D-Lmax≤20mm; -15mm≤D-K3≤20mm.

8. An air conditioner, characterized in that: The air conditioner comprises an air conditioner panel assembly as described in any one of claims 1-7.

9. A method for controlling an air conditioner, characterized in that: The air conditioner comprises an air conditioner panel assembly according to any one of claims 1 to 7, and the method comprises: Lift and extend the lower panel (3); Obtaining the lifting height of the lower panel (3); Determining whether the lifting height of the lower panel (3) reaches a preset value; The air guide door (4) is rotated to open the air outlet (15), and the outer side surface (412) of the air guide door (4) is kept in contact with the second lower end surface (312) of the lower panel (3).

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