Middle frame and air conditioner

Abstract

The embodiment of the invention provides a middle frame and an air conditioner, and relates to the technical field of air conditioners. The middle frame comprises a bottom plate, side plates, a front wall plate and a top plate, the bottom plate, the side plates, the front wall plate and the top plate define a mounting cavity, and an air outlet is formed between the front wall plate and the bottom plate. An upper folded plate is obliquely arranged at the position, close to the air outlet, of the bottom plate and used for being matched with the volute. The upper folded plate is provided with an avoiding notch communicated with the air outlet so as to avoid a driving arm of the air guide door. A baffle is arranged at the position, corresponding to the receding notch, of the middle frame, and the baffle and the bottom plate are arranged in a spaced mode. The problem that part of cold air blown out of the air outlet directly blows to the inner side of the middle frame bottom plate through the avoiding notch can be solved, so that the problem that the outer side of the middle frame bottom plate dews when meeting hot air is solved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a middle frame and an indoor unit. Background Art

[0002] In order to facilitate the installation of the air guide door and simplify the transmission mechanism in the prior art, it is necessary to set an avoidance gap on the upper folding plate where the middle frame and the volute overlap, so that the driving arm of the air guide door can extend from the avoidance gap into the interior of the middle frame and connect with the rotating shaft set on the volute to drive the air guide door to rotate. However, this design will cause the cold air blown out of the air outlet to blow directly onto the inner side of the middle frame bottom plate through the avoidance gap, and when it meets the hot air on the outer side of the middle frame bottom plate, it is easy to cause condensation on the outer side of the middle frame bottom plate, and the condensation will drip after gathering, affecting the user experience. Summary of the invention

[0003] The technical problem to be solved by the present application is that the cold air blown out of the air outlet is directly blown onto the inner side of the middle frame bottom plate through the avoidance gap, and when it meets the hot air on the outer side of the middle frame bottom plate, it is easy to cause condensation on the outer side of the bottom plate. The condensation gathers and drips, affecting the user experience.

[0004] To solve the above problems, an embodiment of the present invention provides a middle frame and an air conditioner, which can avoid the problem that the cold air blown out of the air outlet is directly blown onto the inner side of the middle frame bottom plate through the avoidance gap, thereby improving the problem of condensation on the outer side of the middle frame bottom plate when encountering hot air, thereby improving the user experience.

[0005] In a first aspect, the present invention provides a middle frame, the middle frame comprising a bottom plate, a side plate, a front plate and a top plate, the bottom plate, the side plate, the front plate and the top plate enclose a mounting cavity, and an air outlet is provided between the front plate and the bottom plate;

[0006] The bottom plate is provided with an upper folding plate at a position close to the air outlet, and the upper folding plate is used to cooperate with the volute;

[0007] The upper folding plate is provided with an avoidance notch connected to the air outlet to avoid the driving arm of the air guide door;

[0008] A baffle is arranged at a position of the middle frame corresponding to the avoidance notch, and the baffle is spaced apart from the bottom plate.

[0009] The present application sets a baffle plate spaced apart from the bottom plate and corresponding to the avoidance gap through the upper folding plate, so that part of the cold air blown out from the air outlet will directly blow onto the baffle plate through the avoidance gap, thereby avoiding the problem of cold air blowing directly onto the middle frame bottom plate, and solving the problem that the outer side of the middle frame bottom plate is prone to condensation when encountering hot air, affecting the user experience.

[0010] In an optional embodiment, the baffle is parallel to the bottom plate, one end of the baffle is connected to the upper folding plate, and the other end extends toward the interior of the middle frame.

[0011] The baffle is arranged in this way so that the cold wind blows directly onto the baffle and flows along the extension direction of the baffle, thereby playing the role of guiding the wind backwards and preventing the cold wind guided by the baffle from blowing onto the bottom plate.

[0012] In an optional embodiment, the width of the baffle is greater than the width of the avoidance gap.

[0013] In the present application, the width of the baffle is made greater than the width of the avoidance gap, so that the baffle can fully cover the avoidance gap and prevent cold wind from blowing directly on the bottom plate.

[0014] In an optional embodiment, a support rib is provided between the baffle plate and the bottom plate, and two opposite sides of the support rib are respectively connected to the bottom plate and the baffle plate.

[0015] The present application provides support ribs between the baffle plate and the bottom plate so that the baffle plate and the bottom plate can be connected together, thereby enhancing the strength of the baffle plate and the bottom plate.

[0016] In an optional embodiment, the supporting ribs extend toward the interior of the middle frame and extend out of the cavity between the baffle plate and the bottom plate.

[0017] The present application allows the supporting ribs to extend out of the cavity between the baffle plate and the bottom plate, thereby enhancing the strength of the bottom plate.

[0018] In an optional embodiment, there are multiple support ribs, and the multiple support ribs are arranged at intervals, and the distance between any two adjacent support ribs is greater than or equal to 2 mm; and / or,

[0019] The distance between the baffle and the bottom plate is greater than or equal to 6 mm.

[0020] In the present application, the spacing between two adjacent support ribs is set to be greater than 2 mm, and the spacing between the bottom plate and the baffle is set to be greater than 6 mm, which can ensure that the core pulling mechanical strength of the injection mold is high and avoid core pulling deformation.

[0021] In an optional embodiment, the length of the baffle is greater than 10 mm. In the present application, the length of the baffle is greater than 10 mm, so that the cold wind blown out of the gap can be directly blown on the baffle to avoid the cold wind blowing directly on the bottom plate.

[0022] In an optional embodiment, wind shielding ribs are provided on both sides of the avoidance gap, and the wind shielding ribs are used to cooperate with the base to block the air from flowing toward the avoidance gap.

[0023] The present application arranges wind-shielding ribs on both sides of the avoidance gap, thereby preventing cold and hot air flows from converging at the avoidance gap and forming condensation inside the middle frame.

[0024] In a second aspect, the present invention provides an air conditioner, comprising a base and a middle frame according to any one of the aforementioned embodiments, wherein a lower volute is provided on the base, and the lower volute abuts against the upper folding plate.

[0025] The air conditioner provided in the present application is provided with a baffle plate which is arranged at the bottom plate interval and corresponds to the avoidance gap. In this way, the cold air blown out from the air outlet will directly blow onto the baffle plate through the avoidance gap, thereby avoiding the problem of cold air blowing directly onto the middle frame bottom plate, and solving the problem that the outer side of the middle frame bottom plate is prone to condensation when encountering hot air, thereby affecting the user experience.

[0026] In an optional embodiment, the indoor unit further includes an air guide door and a drive assembly, a partition is provided on a side of the base close to the avoidance gap, a through hole is provided on the partition, the drive assembly is installed on a side of the partition away from the avoidance gap, and a drive shaft of the drive assembly extends from the through hole to the avoidance gap;

[0027] The driving arm of the air guide door is drivingly connected to the driving shaft of the driving assembly.

[0028] This can make the transmission structure of the air guide door simpler and avoid the formation of condensation on the outer side of the bottom plate of the indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of the air conditioner provided by the present invention;

[0030] Figure 2 A schematic structural diagram of a cross-sectional view of the indoor unit of the air conditioner provided by the present invention;

[0031] Figure 3 for Figure 2 The middle part is an enlarged schematic diagram;

[0032] Figure 4 A schematic diagram of a partial cross-section of the indoor unit of the air conditioner provided by the present invention from another perspective;

[0033] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle.

[0034] Icons: 100 - middle frame; 111 - side panel; 113 - front panel; 115 - top panel; 117 - installation cavity; 119 - bottom panel; 121 - air outlet; 123 - upper folding plate; 124 - avoidance gap; 125 - baffle; 127 - wind shield rib; 129 - supporting rib; 131 - partition; 133 - through hole; 300 - air conditioner; 310 - base; 311 - lower volute. DETAILED DESCRIPTION

[0035] The inventors found that the cold air blown out from the air outlet is directly blown onto the inner side of the middle frame bottom plate through the avoidance gap, and meets the hot air on the outer side of the middle frame bottom plate, which easily causes condensation on the outer side of the bottom plate. The condensation gathers and drips, affecting the user experience.

[0036] To solve the above problems, an embodiment of the present invention provides a middle frame and an air conditioner, which can avoid the problem that the cold air blown out of the air outlet is directly blown onto the inner side of the middle frame bottom plate through the avoidance gap, thereby improving the problem of condensation on the outer side of the middle frame bottom plate when encountering hot air, thereby improving the user experience.

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] Please refer to Figure 1 , Figure 2 and Figure 3 The present embodiment provides an air conditioner 300, which includes an indoor unit and an outdoor unit. The indoor unit includes a base 310, a middle frame 100, a wind wheel (not shown), an upper volute (not shown) and an indoor heat exchanger (not shown). A lower volute 311 is provided on the base 310. The wind wheel, the upper volute and the indoor heat exchanger are all assembled with the base 310, and the upper volute and the lower volute 311 are enclosed to form an air duct. An air outlet 121 is provided on the middle frame 100. The wind wheel rotates to suck air from the air inlet, and after heat exchange with the indoor heat exchanger, it is sent to the air outlet 121 through the air duct, and then sent into the room through the air outlet 121.

[0039] Generally, the indoor unit and the outdoor unit are connected through a heat exchange pipe to realize the refrigerant circulation.

[0040] Please refer to Figure 3 , Figure 4 and Figure 5In this embodiment, the middle frame 100 includes a bottom plate 119, a side plate 111, a front plate 113 and a top plate 115. The bottom plate 119, the side plate 111, the front plate 113 and the top plate 115 enclose a mounting cavity 117. Generally, the air outlet 121 is arranged at the transition between the front plate 113 and the bottom plate 119, so that the air outlet 121 can be tilted. Of course, in some special embodiments, the air outlet 121 may be arranged on the front plate 113. The bottom plate 119 is inclinedly provided with an upper folding plate 123 near the air outlet 121, and the upper folding plate 123 is used to cooperate with the lower volute 311. In this way, the upper folding plate 123 abuts against the lower volute 311, so that the air outlet duct can be relatively more sealed, thereby reducing the air volume loss. The upper folding plate 123 is provided with a avoidance gap 124 connected to the air outlet 121 to avoid the driving arm of the air guide door. The driving arm of the air guide door extends into the interior of the middle frame through the avoidance gap and is connected to the rotating shaft set on the volute. A baffle 125 is provided at the position of the middle frame 100 corresponding to the avoidance gap 124, and the baffle 125 is spaced apart from the bottom plate 119. In this embodiment, the baffle 125 is spaced apart from the bottom plate 119 and corresponds to the avoidance gap 124, so that part of the cold air blown out from the air outlet 121 will directly blow on the baffle 125 through the avoidance gap 124, thereby avoiding the problem of cold air directly blowing on the bottom plate 119 of the middle frame 100, and solving the problem that the outer side of the bottom plate 119 of the middle frame 100 is prone to condensation when encountering hot air, affecting the user's experience.

[0041] It should be noted that, in general, the upper folding plate 123 is tilted toward the inner side of the air outlet 121, so that it overlaps with the lower volute to play a role in guiding the wind. The driving assembly of the air guide door is generally arranged on one side or both sides of the indoor unit, and corresponds to the air outlet 121, which will cause interference between the installation of the upper folding plate 123 and the air guide door. In order to avoid interference, there are two existing processing methods. One is to lengthen the driving wall on the air guide door and move the air guide door driving assembly backward, but this method requires the driving motor to have a greater driving force and affects the maximum opening of the air guide door. The other is to set an avoidance gap 124 on the upper folding plate 123 for avoidance, and avoidance does not require increasing the length of the air guide door driving arm. There are generally two avoidance gaps 124, which are respectively arranged on both sides of the length direction of the upper folding plate 123. In the indoor unit, the bottom plate 119, the upper folding plate 123 and the lower volute are generally enclosed to form a chamber.

[0042] It should also be noted that the bottom connection between the bottom plate 119 of the middle frame 100 and the front panel 113 is generally an arc transition, and the baffle 125 is arranged at the arc transition so as to form a gap between the bottom plate 119 .

[0043] Please refer to Figure 3 , Figure 4 and Figure 5In this embodiment, the baffle 125 is parallel to the bottom plate 119 , and one end of the baffle 125 is connected to the upper folding plate 123 , and the other end extends toward the inside of the middle frame 100 .

[0044] In this embodiment, the baffle 125 is arranged in such a way that the cold wind can be blown directly on the windward side of the baffle 125 and flow along the extension direction of the baffle 125, thereby playing the role of guiding the wind backwards.

[0045] Of course, the baffle 125 can also be set with the rear end tilted upward or slightly tilted downward, as long as the cold wind does not blow directly onto the bottom plate 119 of the middle frame 100.

[0046] In this embodiment, wind shielding ribs 127 are provided on both sides of the avoidance gap 124 , and the wind shielding ribs 127 are used to cooperate with the base 310 to block the air from flowing toward the avoidance gap 124 .

[0047] This embodiment can prevent the cold and hot air flows from intersecting at the avoidance gap 124 and affecting the formation of condensation inside the middle frame 100 by setting wind shielding ribs 127 on both sides of the avoidance gap 124. Generally, when the base 310 and the middle frame 100 are matched, since the wind shielding ribs 127 are located at the matching gap between the middle frame 100 and the base 310, the wind shielding ribs 127 can block the air circulation at the matching gap between the middle frame 100 and the base 310, reducing most of the cold and hot alternation of the original air conditioner 300 structure, and the remaining small amount of cold and hot alternation can only generate water mist and remain inside the middle frame 100, which can significantly improve the problem of water droplets dripping.

[0048] In this embodiment, the width of the baffle 125 is greater than the width of the avoidance gap 124 .

[0049] In this embodiment, the width of the baffle plate 125 is larger than the width of the avoidance gap 124 , so that the air flow from the edge of the baffle plate 125 to the bottom plate 119 can be improved.

[0050] In this embodiment, two side portions of the baffle plate 125 are connected to the wind shielding ribs 127 on both sides, and the width of the baffle plate 125 beyond the wind shielding ribs 127 is greater than the width of the avoidance gap 124 .

[0051] It should be noted that in the present application, the width direction of the baffle 125 is the same as the length direction of the indoor unit. The length direction of the baffle 125 refers to the direction in which the baffle 125 extends toward the rear of the indoor unit, and the length direction of the baffle 125 can also be understood as a direction perpendicular to the length direction of the indoor unit.

[0052] In this embodiment, a plurality of support ribs 129 are disposed at intervals between the baffle plate 125 and the bottom plate 119 , and opposite sides of the support ribs 129 are connected to the bottom plate 119 and the baffle plate 125 , respectively.

[0053] In this embodiment, a support rib 129 is provided between the baffle plate 125 and the bottom plate 119 so that the baffle plate 125 and the bottom plate 119 can be connected together, thereby enhancing the strength of the baffle plate 125 and the bottom plate 119.

[0054] In this embodiment, the support ribs 129 extend toward the interior of the middle frame 100 and extend out of the cavity between the baffle 125 and the bottom plate 119 .

[0055] In this embodiment, the supporting ribs 129 extend out of the bottom plate 119 , so as to enhance the strength of the bottom plate 119 .

[0056] In this embodiment, the distance between any two adjacent support ribs 129 is greater than or equal to 2 mm. The distance between the baffle 125 and the bottom plate 119 is greater than or equal to 6 mm.

[0057] Since the molding of the middle frame 100 is generally manufactured by the injection molding process. The production of the holes is generally carried out by the injection core pulling process. If the hole size is small, it will affect the mechanical strength of the core pulling, and it is easy to cause the core pulling to bend or bend, and it cannot be used. In this embodiment, the spacing between two adjacent support ribs 129 is set to be greater than 2mm, and the height spacing between the bottom plate 119 and the baffle 125 is set to be greater than 6mm. This can ensure that the mechanical strength of the core pulling in the injection mold is high, avoid deformation of the core pulling, and avoid condensation on the baffle 125.

[0058] In this embodiment, the length of the baffle 125 is greater than 10 mm. In this way, the cold air blown out of the gap 124 can be directly blown onto the baffle 125 to avoid the cold air from being directly blown onto the bottom plate 119.

[0059] In some other embodiments of the present application, the projection length of the baffle 125 on the bottom plate 119 is greater than or equal to the projection length of the upper folding plate 123 on the bottom plate 119 .

[0060] Please refer to Figure 1 , Figure 3 and Figure 5 In this embodiment, the indoor unit further includes an air guide door (not shown) and a drive assembly (not shown). A partition 131 is provided on the side of the base 310 close to the avoidance gap 124. The partition 131 is provided with a through hole 133. The drive assembly is installed on the side of the partition 131 away from the avoidance gap 124. The drive shaft of the drive assembly extends from the through hole 133 to the avoidance gap 124. The air guide door is connected to the drive shaft of the drive assembly by transmission. This can make the transmission structure of the air guide door simpler and avoid the formation of condensation on the outside of the bottom plate 119 of the indoor unit.

[0061] In summary, the working principles and beneficial effects of the middle frame 100 and the air conditioner 300 provided in this embodiment include:

[0062] In this embodiment, a baffle plate 125 is provided which is spaced apart from the bottom plate 119 and corresponds to the avoidance gap 124. In this way, the cold air blown out from the air outlet 121 will directly blow onto the baffle plate 125 through the avoidance gap, thereby avoiding the problem of the cold air directly blowing onto the bottom plate 119 of the middle frame 100, and solving the problem that the outer side of the bottom plate 119 of the middle frame 100 is prone to condensation when encountering hot air, thereby affecting the user experience.

[0063] 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. A middle frame, It is characterized in that The middle frame comprises a bottom plate (119), a side plate (111), a front plate (113) and a top plate (115); the bottom plate (119), the side plate (111), the front plate (113) and the top plate (115) are combined to form a mounting cavity (117); and an air outlet (121) is provided between the front plate (113) and the bottom plate (119); An upper folding plate (123) is obliquely provided on the bottom plate (119) near the air outlet (121), and the upper folding plate (123) is used to cooperate with the volute; The upper folding plate (123) is provided with an avoidance notch (124) communicating with the air outlet (121) so as to avoid the driving arm of the air guide door; A baffle (125) is provided at a position of the middle frame corresponding to the avoidance gap (124), and the baffle (125) is spaced apart from the bottom plate (119).

2. The middle frame according to claim 1, It is characterized in that The baffle plate (125) is parallel to the bottom plate (119), one end of the baffle plate (125) is connected to the upper folding plate (123), and the other end extends toward the interior of the middle frame.

3. The middle frame according to claim 1 or 2, It is characterized in that The width of the baffle (125) is greater than the width of the avoidance gap (124).

4. The middle frame according to claim 1 or 2, It is characterized in that A support rib (129) is provided between the baffle plate (125) and the bottom plate (119), and opposite sides of the support rib (129) are respectively connected to the bottom plate (119) and the baffle plate (125).

5. The middle frame according to claim 4, It is characterized in that The supporting rib (129) extends toward the interior of the middle frame and extends out of the cavity between the baffle (125) and the bottom plate (119).

6. The middle frame according to claim 4, It is characterized in that There are a plurality of the support ribs (129), and the plurality of the support ribs (129) are arranged at intervals, and the spacing between any two adjacent support ribs (129) is greater than or equal to 2 mm; and / or, The distance between the baffle (125) and the bottom plate (119) is greater than or equal to 6 mm.

7. The middle frame according to claim 1 or 2, It is characterized in that The length of the baffle (125) is greater than 10 mm.

8. The middle frame according to claim 1 or 2, It is characterized in that Wind shielding ribs (127) are provided on both sides of the avoidance gap (124), and the wind shielding ribs (127) are used to cooperate with the base (310) to block air from flowing in the direction of the avoidance gap (124).

9. An air conditioner (300), It is characterized in that The indoor unit comprises a base (310) and a middle frame according to any one of claims 1 to 8, wherein a lower volute (311) is arranged on the base (310), and the lower volute (311) abuts against the upper folding plate (123).

10. The air conditioner (300) according to claim 9, It is characterized in that The indoor unit further comprises an air guide door and a driving assembly, a partition (131) is provided on a side of the base (310) close to the avoidance gap (124), a through hole (133) is provided on the partition (131), the driving assembly is installed on a side of the partition (131) away from the avoidance gap (124), and a driving shaft of the driving assembly extends from the through hole (133) to the avoidance gap (124); The driving arm of the air guide door is drivingly connected to the driving shaft of the driving assembly.

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