CN219036894U

CN219036894U - Defrosting assembly and air condensing units

Info

Publication number: CN219036894U
Application number: CN202223018784.XU
Authority: CN
Inventors: 孙升华; 李书佳; 赵江龙; 匡帅; 陈祖京
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-16
Anticipated expiration: 2032-11-14

Abstract

The utility model provides a defrosting assembly and an air conditioner outdoor unit. The defrosting assembly comprises a driving mechanism, a driven mechanism and a first brush rod. The drive mechanism is configured to output a vertical reciprocating motion. The driven mechanism comprises a driven gear connected to the output part of the driving mechanism, a fixed rack arranged vertically is meshed and connected with the driven gear, and the fixed rack is configured to be fixed on a case of the air conditioner outdoor unit. The first brush bar is connected with the driven gear. The defrosting assembly is applied to the air conditioner outdoor unit. The driven gear and the first brush rod are driven by the driving mechanism to reciprocate in the vertical direction, and the driven gear is meshed with the fixed rack on the case of the air conditioner outdoor unit, so that the driven gear moves up and down and drives the first brush rod to rotate, and the bristles or the felt on the rotating first brush rod clean sundries such as frost, dust and the like on the heat exchanger contacted with the bristles or the felt, thereby maintaining the heat exchange performance of the air conditioner and ensuring the normal operation of the air conditioner.

Description

Defrosting assembly and air condensing units

Technical Field

The present utility model relates to air conditioners, and more particularly, to a defrosting assembly and an air conditioner outdoor unit.

Background

When the air conditioner is in a heating mode, the heat exchanger of the outdoor unit is in a heat absorption state, so that moisture and dust in the surrounding air can be condensed on coils of the heat exchanger together, and heat exchange gaps among the coils are blocked. If the air conditioner is not cleaned in time, the problem of insufficient heat exchange amount of the outdoor unit can occur, and the normal operation of the air conditioner is affected until the compressor is down.

Disclosure of Invention

In view of the above problems, the present utility model has been made to provide a defrosting assembly and an air conditioner outdoor unit that overcome or at least partially solve the above problems, and can solve the problem of low defrosting efficiency of the air conditioner outdoor unit in the prior art, thereby ensuring the normal operation of the air conditioner.

Specifically, the present utility model provides a defrosting assembly of an air conditioner outdoor unit, comprising:

a drive mechanism configured to output a vertical reciprocating motion;

the driven mechanism comprises a driven gear connected to the output part of the driving mechanism, a fixed rack arranged vertically is meshed and connected with the driven gear, and the fixed rack is configured to be fixed on a case of the air conditioner outdoor unit;

the first brush rod is connected with the driven gear.

Optionally, the driving mechanism includes:

the driving motor is provided with an upward or downward output end;

the transmission screw is arranged along the vertical direction and is coaxially connected to the output end of the driving motor;

the moving piece is connected with the transmission screw rod in a spiral transmission manner and is connected with the first brush rod.

Optionally, the moving member includes:

two first connecting plates which are vertically arranged and are parallel to each other; one of the first connecting plates is rotatably connected with the first brush rod;

the screw rod nut is in threaded connection with the transmission screw rod and is connected with the other first connecting plate;

the two ends of the second connecting plate are respectively connected with the two first connecting plates.

Optionally, the defrosting assembly further comprises:

the second brush rod and the first brush rod are arranged at an angle; the first brush bar and the second brush bar are connected with bevel gears, and the bevel gears are connected in a meshed mode.

Optionally, the first brush pole with the second brush pole is cylindricly, the first brush pole with all be fixed to be provided with the brush structure of cylinder distribution on the periphery of second brush pole.

Optionally, the defrosting assembly further comprises:

the first guide mechanism is movably connected with the first brush rod in a vertical guide mode.

Optionally, the first guiding mechanism includes:

the first guide rod is arranged along the vertical direction;

the guide box is vertically guided to be movably connected to the first guide rod, and the guide box is rotatably connected with one end of the first brush rod.

Optionally, the bevel gear is located in the guide box, and the other ends of the first brush bar and the second brush bar extend into the guide box and are respectively connected with one bevel gear.

Optionally, the defrosting assembly further comprises:

the second guide mechanism is movably connected with the second brush rod in a vertical guide manner;

the second guide mechanism includes:

the second guide rod is arranged along the vertical direction;

the guide block is vertically guided to be movably connected to the second guide rod, and the guide block is rotatably connected with one end of the second brush rod.

The utility model also provides an air conditioner outdoor unit, which comprises:

the case and the heat exchanger arranged in the case;

any one of the above defrost assemblies; the defrosting assembly is arranged between the case and the heat exchanger; or the defrosting component is positioned outside the case and is arranged corresponding to the heat exchanger.

In the defrosting assembly and the air conditioner outdoor unit, the driven gear and the first brush rod are driven by the driving mechanism to reciprocate in the vertical direction, and the driven gear is meshed with the fixed rack on the chassis of the air conditioner outdoor unit, so that the driven gear moves up and down and simultaneously rotates, the first brush rod is driven to rotate, and the bristles or the felt on the rotating first brush rod clean sundries such as frost, dust and the like on the coil pipe contacted with the bristles or the felt. That is, the first brush bar can also rotate while moving up and down, after frost is condensed on the cabinet, the defrosting assembly automatically and reciprocally defrost, so that the heat exchange performance of the air conditioner is maintained, and the normal operation of the air conditioner is ensured, thereby improving the defrosting efficiency of the air conditioner outdoor unit and improving the user experience.

The above, as well as additional objectives, advantages, and features of the present utility model will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present utility model when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic front view of a defrost assembly and an air conditioner outdoor unit according to one embodiment of the present utility model;

fig. 2 is a schematic structural view of a defrosting assembly and an air conditioner outdoor unit according to one embodiment of the present utility model;

fig. 3 is a schematic structural view of a defrosting assembly and an air conditioner outdoor unit according to one embodiment of the present utility model;

FIG. 4 is a schematic enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic partial block diagram of a defrost assembly in accordance with one embodiment of the utility model;

fig. 6 is a schematic enlarged view of a portion B in fig. 5.

Detailed Description

The following describes a defrosting assembly and an air conditioner outdoor unit according to an embodiment of the present utility model with reference to fig. 1 to 6. In the description of the present embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be connected, either permanently or removably, or integrally; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present utility model as the case may be.

Furthermore, in the description of the present embodiments, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween. That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic front view of a defrosting assembly and an air conditioner outdoor unit according to an embodiment of the present utility model, as shown in fig. 1, and referring to fig. 2 to 6, the embodiment of the present utility model provides a defrosting assembly of an air conditioner outdoor unit, which includes a driving mechanism 100, a driven mechanism and a first brush bar 210. The drive mechanism 100 is configured to output a vertical reciprocating motion. The driven mechanism includes a driven gear 310 connected to an output portion of the driving mechanism 100, and a fixed rack 320 disposed vertically is engaged with the driven gear 310, and the fixed rack 320 is configured to be fixed to a cabinet 500 of the outdoor unit of the air conditioner. The first brush bar 210 is connected to the driven gear 310.

In this embodiment, the driving mechanism 100 drives the driven gear 310 and the first brush bar 210 to reciprocate in the vertical direction, and the driven gear 310 is meshed with the fixed rack 320 on the outdoor unit casing 500 of the air conditioner, so that the driven gear 310 moves up and down and drives the first brush bar 210 to rotate, and the bristles or the felt on the rotating first brush bar 210 cleans the impurities such as frost, dust and the like on the heat exchanger contacting with the bristles or the felt. That is, the first brush bar 210 can also rotate while moving up and down, and after frost is condensed on the cabinet 500, the defrosting assembly automatically reciprocates to defrost, thereby maintaining the heat exchanging performance of the air conditioner and ensuring the normal operation of the air conditioner.

When the brush rod is used, the driving mechanism is limited by the rack to rotate when outputting downward movement, namely the gear starts to move downwards in a self-rotation mode, and simultaneously drives the brush rod to move downwards in a self-rotation mode;

and vice versa.

In some embodiments of the present utility model, as shown in fig. 2 to 4, the driving mechanism 100 includes a driving motor 110, a driving screw 120, and a moving member 130. The drive motor 110 has an upward or downward output. The driving screw 120 is disposed along a vertical direction, and the driving screw 120 is coaxially connected to an output end of the driving motor 110. The moving member 130 is in screw transmission connection and sleeved on the transmission screw 120, and the moving member 130 is connected with the first brush rod 210.

In this embodiment, by setting the driving motor 110 with the output end facing upwards or downwards, the driving motor 110 drives the vertically arranged driving screw 120 to rotate, and since the moving member 130 is limited by the first brush rod 210, the moving member 130 moves along the axial direction of the driving screw 120, so that the driving screw 120 can be rotated forward or backward only by setting the driving motor 110 to be a motor capable of rotating forward or backward, thereby enabling the first brush rod 210 to reciprocate vertically.

Further, the moving member 130 includes a first connection plate 131, a lead screw nut 132, and a second connection plate 133. The two first connecting plates 131 are vertically arranged and are parallel to each other; one of the first connection plates 131 is rotatably connected to the first brush bar. The lead screw nut 132 is screwed to the driving lead screw, and the lead screw nut 132 is connected to the other first connection plate 131. Two ends of the second connection plate 133 are respectively connected to the two first connection plates 131.

In this embodiment, the second connecting plate 133 is connected to the first connecting plate 131, and the first brush bar is connected to one first connecting plate 131, and the screw nut 132 is connected to the other first connecting plate 131. When in use, the driving motor 110 drives the driving screw 120 to rotate, and the screw nut 132 is converted into linear motion according to the lead of the corresponding specification along with the rotation angle of the driving screw 120, so that the first connecting plate 131 and the second connecting plate 133 drive the first brush rod 210 to perform corresponding linear motion.

In some embodiments of the present utility model, the defrosting assembly further includes a second brush bar 220, the second brush bar 220 is disposed at an angle to the first brush bar 210, bevel gears 600 are connected to each of the first brush bar 210 and the second brush bar 220, and the two bevel gears 600 are engaged with each other. Because the first brush bar 210 and the second brush bar 220 are angled with each other, the defrosting assembly can clean two sides of the chassis 500 at the same time, so as to adapt to an outdoor unit with two heat exchangers built in or a coil pipe of the heat exchanger bent, and the application range of the defrosting assembly is improved. In application, the rotating first brush bar 210 drives the second brush bar 220 to rotate through the bevel gear 600, so that the second brush bar 220 rotates synchronously with the first brush bar 210, and the defrosting assembly can clean two sides of the case 500 at the same time.

In some embodiments of the present utility model, as shown in fig. 5, the first brush bar 210 and the second brush bar 220 are both cylindrical, and the outer circumferences of the first brush bar 210 and the second brush bar 220 are fixedly provided with brush structures distributed in a cylindrical shape, and the rotating first brush bar 210 and the rotating second brush bar 220 can drive the brush structures to clean impurities such as frost, dust, etc. on the case 500.

In some embodiments of the present utility model, the defrost assembly further comprises a first guide mechanism 400, the first guide mechanism 400 and the first brush bar 210 being movably connected in a vertical guide. Since the driving mechanism 100 is configured to output the vertical reciprocating motion, in order to avoid the first brush bar 210 from being offset during the vertical motion, the first guiding mechanism 400 is added, and the first guiding mechanism 400 can limit the first brush bar 210 to move along the vertical direction, so that the first brush bar 210 can clean the chassis 500 normally.

Specifically, the first guide mechanism 400 includes a first guide bar 410 and a guide box 420. The first guide bar 410 is disposed in a vertical direction. The guide case 420 is vertically guide-movably coupled to the first guide bar 410, and the guide case 420 is rotatably coupled to one end of the first brush bar 210. When in use, the driving mechanism 100 drives the first brush bar 210 to reciprocate in the vertical direction, and the first brush bar 210 can only drive the guide box 420 to move in the vertical direction due to the limitation of the first guide bar 410 and the guide box 420, so as to clean the chassis 500.

In some embodiments of the present utility model, as shown in fig. 6, bevel gears 600 are positioned in the guide boxes 420, and the other ends of the first brush bar 210 and the second brush bar 220 are extended into the guide boxes 420 to be connected with one bevel gear 600, respectively. By the arrangement, the guide box 420 can not only prevent sundries such as water vapor and dust from falling on the bevel gear 600 and enable the bevel gear 600 to rust or interfere with the bevel gear 600 to move, but also enable the guide box 420 to limit the first brush rod 210 and the second brush rod 220 not to deviate when rotating, so that the connection stability of the two bevel gears 600 in meshed connection is ensured.

In some embodiments of the present utility model, the defrost assembly further comprises a second guide mechanism 700, the second guide mechanism 700 being movably coupled to the second brush bar 220 in a vertical guide. Since the first brush bar 210 drives the second brush bar 220 to move up and down in a rotation manner through the bevel gear 600 and the guide box 420, in order to avoid the second brush bar 220 from being deviated during the vertical movement, the second guide mechanism 700 is added, and the second guide mechanism 700 can limit the second brush bar 220 to move along the vertical direction, so that the second brush bar 220 can be ensured to clean the chassis 500 normally.

Specifically, the second guide mechanism 700 includes a second guide bar 710 and a guide block 720. The second guide bar 710 is disposed in a vertical direction. The guide block 720 is vertically and movably connected to the second guide rod 710, and the guide block 720 is rotatably connected to one end of the second brush bar 220. In application, the first brush bar 210 drives the second brush bar 220 to move up and down in a rotation mode through the bevel gear 600 and the guide box 420, and the guide block 720 is vertically guided to move and connected to the second guide bar 710, so that the guide block 720 can only move up and down along the axial direction of the second guide bar 710, and the end, connected with the guide block 720, of the second brush bar 220 is limited to be free from shifting in the up and down moving process, so that the chassis 500 can be cleaned.

The present utility model also provides an outdoor unit of an air conditioner, which includes a cabinet 500 and a defrosting assembly according to any one of the above embodiments, so as to have all effects of the defrosting assembly.

Be provided with the heat exchanger in the machine case 500, defrosting subassembly installs between machine case 500 and heat exchanger for first brush yoke 210 and second brush yoke 220 can hug closely the heat exchanger surface and reciprocate, and the brush structure is in depth between the coil pipe of heat exchanger, cleans debris such as frost, dust on the coil pipe, avoids the air condensing units to appear the problem that heat exchange quantity is not enough, ensures the normal operating of air conditioner.

Alternatively, the defrosting assembly is located outside the cabinet 500 and is disposed corresponding to the heat exchanger. Because the heat exchanger is disposed in the case 400 and is closely attached to the inner wall of the case 400, the cooling capacity of the heat exchanger is transferred to the side wall of the case 400, so that moisture and dust in the surrounding air can be condensed on the side wall of the case 400. The defrosting component clings to the outer side wall of the case 400, can clean frost and dust on the outer side wall of the case 400, avoid the problem of insufficient heat exchange quantity of the outdoor unit, and ensure the normal operation of the air conditioner. Meanwhile, the defrosting component is arranged outside the case 400, original main structures and heat exchange functions in the case 400 are not changed, and cleaning areas of the brush bodies can be adjusted, so that the side walls of the case 400 are cleaned.

In the prior art, a heating mode is adopted for defrosting, and all the frosted surface of the whole heat exchanger needs to be heated, so that the time is long and the power consumption is high. The defrosting assembly provided by the utility model has the advantages that only one small motor acts in the defrosting process, the frost is cleaned through the movement of the first brush rod 210 and the second brush rod 220, the defrosting time is short, the power consumption is low, the structure is simple, the configuration and use cost is low, and the defrosting effect is good.

In the prior art, the air conditioner is stopped and the four-way valve is switched to a refrigerating mode, so that the heat exchanger is defrosted in a heating mode, the heat supply to the indoor needs to be interrupted during application, the heat exchanger in the outdoor unit can be heated only after the mode is switched, and the consumption of energy is high. The defrosting component provided by the utility model does not need to start the refrigeration reverse circulation to melt the frost layer on the heat exchanger, so that on one hand, the air conditioner can supply heat to the room normally, and on the other hand, the energy consumption of defrosting can be effectively reduced, the heating performance of the air conditioner is improved, and the energy consumption is reduced.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been shown and described herein in detail, many other variations or modifications of the utility model consistent with the principles of the utility model may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the utility model. Accordingly, the scope of the present utility model should be understood and deemed to cover all such other variations or modifications.

Claims

1. A defrost assembly of an air conditioner outdoor unit, comprising:

a drive mechanism configured to output a vertical reciprocating motion;

the first brush rod is connected with the driven gear.

2. The defrost assembly of claim 1, wherein,

the driving mechanism includes:

the driving motor is provided with an upward or downward output end;

3. The defrost assembly of claim 2, wherein,

the moving member includes:

4. The defroster assembly of claim 1 further comprising:

5. The defrost assembly of claim 4, wherein,

the first brush rod and the second brush rod are cylindrical, and brush structures in cylindrical distribution are fixedly arranged on the peripheries of the first brush rod and the second brush rod.

6. The defroster assembly of claim 4 further comprising:

7. The defrost assembly of claim 6, wherein,

the first guide mechanism includes:

the first guide rod is arranged along the vertical direction;

8. The defrost assembly of claim 7, wherein,

the bevel gears are positioned in the guide boxes, and the other ends of the first brush bar and the second brush bar extend into the guide boxes and are respectively connected with one bevel gear.

9. The defroster assembly of claim 4 further comprising:

the second guide mechanism includes:

the second guide rod is arranged along the vertical direction;

10. An outdoor unit of an air conditioner, comprising:

the case and the heat exchanger arranged in the case;

a defrost assembly as claimed in any one of claims 1 to 9; the defrosting assembly is arranged between the case and the heat exchanger; or the defrosting component is positioned outside the case and is arranged corresponding to the heat exchanger.