CN213395627U

CN213395627U - Outdoor machine of air conditioner

Info

Publication number: CN213395627U
Application number: CN202021457371.XU
Authority: CN
Inventors: 徐亚男; 李小蕊; 卢宪晓; 丛辉; 禹志强
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-06-08
Anticipated expiration: 2030-07-22

Abstract

The utility model provides an air condensing units, its indoor set that is used for connecting the air conditioner, include: a housing; an outdoor heat exchanger disposed in the housing; the cleaning assembly comprises a water spraying part and a driving part, the water spraying part is used for spraying water onto the outdoor heat exchanger, the driving part is used for driving the water spraying part to longitudinally move along the height direction of the outdoor heat exchanger, and the driving part is also used for driving the water spraying part to transversely rotate. The driving component drives the water spraying component to move up and down and swing left and right, scale on the surface of the heat exchanger is effectively cleaned, the heat exchange efficiency of the heat exchanger is improved, and the operation energy efficiency of the air conditioner is further improved.

Description

Outdoor machine of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to air condensing units.

Background

Air conditioners are household appliances commonly used in daily life, and are classified into wall-mounted air conditioners and cabinet air conditioners. Among them, the air conditioner generally includes an indoor unit installed at an indoor side and an outdoor unit installed at an outdoor side.

The prior art outdoor unit generally includes a casing, and a compressor, a heat exchanger, an outdoor fan, and an electric control box installed in the casing. During the working process of the outdoor unit, outdoor air is driven by the outdoor fan to enter the shell to exchange heat with the heat exchanger.

However, as the service life increases, the outdoor unit of the air conditioner will affect the outside air, and particles such as dust adhere to the heat exchanger, so that the surface of the heat exchanger is scaled and the heat exchange efficiency is reduced. In view of this, how to design an air conditioning technology of self-cleaning in order to improve the heat exchange efficiency of heat exchanger is the utility model discloses the technical problem that will solve.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air condensing units drives the water spray part through drive assembly and reciprocates and the horizontal hunting, the scale deposit on effectual clearance heat exchanger surface to improve the heat exchange efficiency of heat exchanger, and then improve the operation efficiency of air conditioner.

In some embodiments of the present application, an outdoor unit of an air conditioner for connecting an indoor unit of an air conditioner includes:

a housing;

an outdoor heat exchanger disposed in the housing;

the cleaning assembly comprises a water spraying part and a driving part, the water spraying part is used for spraying water onto the outdoor heat exchanger, the driving part is used for driving the water spraying part to longitudinally move along the height direction of the outdoor heat exchanger, and the driving part is also used for driving the water spraying part to transversely rotate.

The cleaning assembly drives the water spraying part to move through the driving part, on the one hand, the water spraying part can move up and down along the height direction of the heat exchanger, and thus, the heat exchanger can be cleaned in the height direction, on the other hand, the driving part can also drive the water spraying part to rotate left and right, in-process of the left and right rotation of the water spraying part, the heat exchanger can be comprehensively cleaned in the width direction, and because the water spraying part can simultaneously meet the longitudinal and transverse cleaning requirements, and further the heat exchanger can be cleaned more thoroughly and effectively, the water spraying part is driven to move up and down and swing left and right through the driving part, scale on the surface of the heat exchanger can be effectively cleaned, the heat exchange efficiency of the heat exchanger is improved, and. In addition, because the water spray component only needs to move up and down and is matched with the left and right rotation to meet the cleaning requirement of fully covering the heat exchanger in the moving process, the whole structure of the cleaning assembly is more compact.

In some embodiments of the present application, the driving part includes a lifting mechanism and a rotating mechanism; the lifting mechanism is used for driving the water spraying component to longitudinally move along the height direction of the outdoor heat exchanger, and the rotating mechanism is used for driving the water spraying component to transversely rotate. The requirement that the water spraying part moves up and down is met through the lifting mechanism, the requirement that the water spraying part rotates left and right can be met through the rotating mechanism, and the reliable operation of the water spraying part can be realized through the two independent mechanisms.

In some embodiments of the present application, the rotating mechanism is disposed on a lifting portion of the lifting mechanism, and the water spraying member is disposed on the rotating portion of the rotating mechanism.

In some embodiments of the present application, the lifting mechanism is disposed on a rotating portion of the rotating mechanism, and the water spraying member is disposed on a lifting portion of the lifting mechanism.

In some embodiments of the present application, the lifting mechanism is an electric push rod, and a telescopic rod of the electric push rod forms the lifting portion.

In some embodiments of the present application, the lifting mechanism includes a slide rail, a rack, a first gear and a first motor, the slide rail is vertically arranged, the rack is slidably installed on the slide rail, the first gear is engaged with the rack, the first motor is used for driving the first gear to rotate, and the rack forms the lifting portion. By adopting the mode of matching the gear and the rack, the rack can drive the water spraying part to stably move up and down, and the lifting height of the rack is accurately controlled through the first gear so as to accurately clean the parts of the heat exchanger with different heights.

In some embodiments of the present application, the rotating mechanism is a rotating electrical machine, and a rotating shaft of the rotating electrical machine forms the rotating portion.

In some embodiments of the present application, the rotating mechanism includes a mounting seat, a second gear, a third gear, and a second motor, the second gear and the third gear are rotatably mounted on the mounting seat, the second gear is engaged with the third gear, the second motor is configured to drive the second gear to rotate, and the third gear forms the rotating portion. By adopting the mode of matching the two gears, the third gear can drive the water spraying component to rotate left and right stably, and the rotation angle of the water spraying component is accurately controlled by controlling the gear ratio of the two gears so as to more comprehensively clean the heat exchanger.

In some embodiments of the present application, the cleaning assembly further comprises a water supply part and a telescopic pipe, and a water outlet of the water supply part is connected with the water spraying part through the telescopic pipe. Water output by the water supply component is conveyed to the water spraying component through the telescopic pipe so as to spray water to the heat exchanger, and the telescopic pipe can move up and down along with the water spraying component and correspondingly stretch.

In some embodiments of this application, the water supply part includes water pump, water tank and water collector, the water inlet intercommunication of water pump the water tank, the water tank is located the below of water collector, the water collector is located the below of heat exchanger, the water collector is used for collecting water and carries extremely the water tank. Collect through the water collector and wash the water that the heat exchanger flows down, and then realize the cyclic utilization of water, simultaneously, utilize the water collector can also collect rainwater or change the frost water and come the feed tank make-up water.

In some embodiments of the present application, a filter screen is disposed on the water outlet of the water pan. The water collected by the water tray is filtered through the filter screen, so that the water flowing back into the water tank is filtered and purified, the blockage of the water pump by impurities is reduced, and the use reliability is improved.

In some embodiments of the present application, the water tank is further provided with a water replenishing port. So as to supplement water to the inside of the water tank through a water supplementing opening.

In some embodiments of the present application, the water spraying member is a nozzle.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an outdoor unit of an air conditioner.

Fig. 2 is a second schematic structural diagram of an embodiment of an outdoor unit of an air conditioner.

Fig. 3 is an assembly schematic diagram of a water spray part and a driving part in an embodiment of an outdoor unit of an air conditioner.

Fig. 4 is an assembly schematic diagram of a water spray member and a rotation mechanism in an embodiment of an outdoor unit of an air conditioner.

Fig. 5 is a schematic diagram of a flow path in an embodiment of an outdoor unit of an air conditioner.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "upper," "lower," "front," "back," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The present embodiment provides an air conditioner that performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant medium to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigerating effect by heat exchange with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor, an outdoor heat exchanger, and an outdoor fan, the indoor unit of the air conditioner includes a portion of an indoor heat exchanger and an indoor fan, and a throttling device (e.g., a capillary tube or an electronic expansion valve) may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. The air conditioner performs a heating mode when the indoor heat exchanger serves as a condenser, and performs a cooling mode when the indoor heat exchanger serves as an evaporator.

The indoor heat exchanger and the outdoor heat exchanger are switched to be used as a condenser or an evaporator, a four-way valve is generally adopted, and specific reference is made to the arrangement of a conventional air conditioner, which is not described herein again.

The refrigeration working principle of the air conditioner is as follows: the compressor works to enable the interior of the indoor heat exchanger (in the indoor unit, the evaporator at the moment) to be in an ultralow pressure state, liquid refrigerant in the indoor heat exchanger is rapidly evaporated to absorb heat, air blown out by the indoor fan is cooled by the coil pipe of the indoor heat exchanger to become cold air which is blown into a room, the evaporated and vaporized refrigerant is compressed by the compressor, is condensed into liquid in a high-pressure environment in the outdoor heat exchanger (in the outdoor unit, the condenser at the moment) to release heat, and the heat is dissipated into the atmosphere through the outdoor fan, so that the refrigeration effect is achieved by circulation.

The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor to become high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the indoor heat exchanger (the condenser at the moment), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, so that the aim of increasing the indoor temperature is fulfilled. The liquid refrigerant is decompressed by the throttling device, enters the outdoor heat exchanger (an evaporator at the moment), is evaporated, gasified and absorbs heat to form gas, absorbs the heat of outdoor air (the outdoor air becomes cooler) to form gaseous refrigerant, and enters the compressor again to start the next cycle.

Referring to fig. 1 to 5, according to some embodiments of the present application, an air conditioner includes an indoor unit (not shown) installed in an indoor space. The indoor unit is connected to an outdoor unit installed in an outdoor space through a pipe. The outdoor unit includes a casing 1, an outdoor heat exchanger 2, an outdoor fan 3, a compressor 4, and other relevant components.

And for the outdoor unit, the outdoor unit can be hung on the outer wall through a hanging frame, and can also be installed outdoors through a base.

Meanwhile, the housing 11 is correspondingly provided with an air inlet and an air outlet. Under the action of the outdoor fan 3, outside air enters the shell 1 from the air inlet and exchanges heat with the outdoor heat exchanger 2, and the air after heat exchange is output from the air outlet.

In order to automatically clean the outdoor heat exchanger 2 in the outdoor unit, a cleaning assembly 5 is further disposed in the casing 1 of the outdoor unit.

The cleaning assembly 5 includes a water spraying part 51 and a driving part 52, the water spraying part 51 is used for spraying water onto the outdoor heat exchanger 2, the driving part 52 is used for driving the water spraying part 51 to move longitudinally along the height direction of the outdoor heat exchanger 2, and the driving part 52 is also used for driving the water spraying part 51 to rotate transversely.

In the actual use process, after the air conditioner runs for a period of time, dust is attached to the outdoor heat exchanger 2, and then scaling is formed. The outdoor heat exchanger 2 can be cleaned by spraying water to the outdoor heat exchanger through the water spraying part 51 in the cleaning assembly 5. Wherein, during the cleaning process, the driving part 52 drives the water spraying part 51 to move up and down and simultaneously realize the left and right swinging.

The method specifically comprises the following steps: in the process of spraying water to the outdoor heat exchanger 2 by the water spraying member 51, the driving member 52 moves the water spraying member 51. Typically, the cleaning process starts from the top of the outdoor heat exchanger 2. The driving part 52 drives the water spraying part 51 to ascend to the top area of the outdoor heat exchanger 2, and the water spraying part 51 can still swing left and right while spraying water to the outdoor heat exchanger 2, so that the requirement of cleaning the outdoor heat exchanger 2 in the width direction is met. As for the specific structure of the water spraying part 51, a conventional water spraying structure such as a nozzle may be adopted without limitation.

After the outdoor heat exchanger 2 at the same height position is cleaned for a set time, the driving part 52 drives the water spraying part 51 to move downwards for a certain distance, and then the water spraying part 51 continuously swings left and right and sprays water towards the outdoor heat exchanger 2. By analogy, after the cleaning operation of the areas with different heights is completed, the driving part 52 drives the water spraying part 51 to gradually move downwards so as to finally and completely clean the outdoor heat exchanger 2.

In some embodiments of the present application, in order to realize the lifting and lowering and the side-to-side swinging of the water spraying member 51, the driving member 52 generally needs to be provided with a lifting mechanism 521 and a rotating mechanism 522.

Specifically, the lifting mechanism 521 is configured to drive the water spraying member 51 to move longitudinally in the height direction of the outdoor heat exchanger 2, and the rotating mechanism 522 is configured to drive the water spraying member 51 to rotate transversely. In the actual use process, the requirement that the water spraying part 51 moves up and down is met through the lifting mechanism 521, the requirement that the water spraying part 51 rotates left and right can be met through the rotating mechanism 522, and the reliable operation of the water spraying part can be realized through two independent mechanisms.

The lifting mechanism 521 and the rotating mechanism 522 may be assembled in at least the following two ways.

In the first embodiment, the turning mechanism 522 is provided in the elevating portion of the elevating mechanism 521, and the water spraying member 51 is provided in the turning portion of the turning mechanism 522. Specifically, in the first embodiment, the elevating mechanism 521 is fixedly installed in the housing 1, and the rotating mechanism 522 is installed on the elevating portion of the elevating mechanism 521. The lifting mechanism 521 drives the rotating mechanism 522 to move up and down through the lifting portion, and the rotating portion of the rotating mechanism 522 directly drives the water spraying member 51 to swing left and right.

In the second embodiment, the elevating mechanism 521 is provided on the rotating portion of the rotating mechanism 522, and the water spraying member 51 is provided on the elevating portion of the elevating mechanism 521. Specifically, in the second embodiment, the rotating mechanism 522 is fixedly installed in the housing 1, and the elevating mechanism 521 is installed on the rotating portion of the rotating mechanism 522. The rotating mechanism 522 drives the lifting mechanism 521 to swing left and right through the rotating portion, and the lifting portion of the lifting mechanism 521 directly drives the water spraying member 51 to move up and down.

In some embodiments of the present application, there are various ways to embody the lifting mechanism 521 and the rotating mechanism 522.

For the lifting mechanism 521, the lifting mechanism 521 is an electric push rod, a telescopic rod of the electric push rod forms the lifting part, and in the using process, the electric push rod is vertically arranged, and the telescopic rod of the electric push rod extends and retracts in a reciprocating manner to realize the up-and-down lifting motion.

Alternatively, the lifting mechanism 521 includes a sliding rail 5211, a rack 5212, a first gear (not shown) and a first motor (not shown), wherein the sliding rail 5211 is vertically arranged, the rack 5212 is slidably mounted on the sliding rail 5211, the first gear is engaged with the rack 5212, the first motor is used for driving the first gear to rotate, and the rack 5212 forms the lifting portion. Specifically, the first gear is matched with the rack 5212 to realize the lifting movement, and the rack 5212 moves up and down along the slide rail 5211, so as to meet the requirement of driving the water spraying component 51 to move up and down stably. The lifting height of the rack 5212 is accurately controlled by the first gear, so that the parts of the heat exchanger with different heights can be accurately cleaned. Wherein, the bottom of the lifting mechanism 521 is provided with a base 5213, the sliding rail 5211 is fixedly installed on the base 5213, the first gear and the first motor can be installed on the base 5213, and the base 5213 is fixedly installed in the housing 1.

As for the turning mechanism 522, the turning mechanism 522 is a rotating electric machine whose rotating shaft forms the turning portion. Specifically, the water spraying member 51 is directly mounted on a rotating shaft of the rotating motor, and the rotating motor can be powered on to drive the water spraying member 51 to swing left and right.

Alternatively, the rotating mechanism 522 includes a mounting seat 5223, a second gear 5221, a third gear 5222 and a second motor (not shown), the second gear 5221 and the third gear 5222 are rotatably mounted on the mounting seat 5223, the second gear 5221 is meshed with the third gear 5222, the second motor is used for driving the second gear 5221 to rotate, and the third gear 5222 forms the rotating portion. Specifically, the second gear 5221 and the third gear 5222 can be conveniently mounted by the mounting seat, the second gear 5221 and the third gear 5222 can freely rotate on the mounting seat 5223, and the second motor provides power to drive the second gear 5221 to rotate. The second gear 5221 and the third gear 5222, which are engaged with each other, will rotate synchronously to satisfy the requirement of the water spraying part 51 swinging left and right.

With reference to fig. 3 and 4, the case where the elevating mechanism 521 is fixedly installed in the housing 1 and the rotating mechanism 522 is disposed in the elevating mechanism 521 will be described as an example. The water spray member 51 is mounted on the third gear 5222, and the rotation mechanism 522 is fixedly mounted on the top of the rack 5212 through a mounting seat. In use, the rack 5212 drives the second gear 5221 and the third gear 5222 on the mounting seat 5223 to move up and down, and the third gear 5222 drives the water spraying component 51 to swing left and right.

In some embodiments of the present application, in order to supply water to the water spraying part 51, the cleaning assembly 5 further includes a water supply part 53 and a telescopic pipe 54, and a water outlet of the water supply part 53 is connected to the water spraying part 51 through the telescopic pipe 54. Specifically, the water supply part 53 is used for providing a water source for the water spraying part 51, and since the water spraying part 51 needs to move up and down, water output by the water supply part 53 is delivered to the water spraying part 51 through the extension pipe 54 to meet the water supply requirement of the water spraying part 51.

In some embodiments of the present application, the following structure may be adopted for the representation entity of the water supply part 53. The water supply part 53 comprises a water pump 531, a water tank 532 and a water receiving tray 533, wherein a water inlet of the water pump 531 is communicated with the water tank 532, the water tank 532 is positioned below the water receiving tray 533, the water receiving tray 533 is positioned below the heat exchanger, and the water receiving tray 533 is used for collecting water and conveying the water to the water tank 532. Collect through the water collector and wash the water that the heat exchanger flows down, and then realize the cyclic utilization of water, simultaneously, utilize water collector 533 can also collect rainwater or change the frost water and come the feed tank makeup water.

In actual use, the water pump 531 pumps water in the water tank 532 and conveys the water to the water spraying part 51 through the extension pipe 54 to spray water to the outdoor heat exchanger 2 for cleaning, water flowing from the outdoor heat exchanger 2 is collected in the water receiving tray 533, and the water collected by the water receiving tray 533 finally flows into the water tank 532, so that the water can be recycled.

In order to ensure the water quality of the water in the water tank 532, in some embodiments, a filter 534 may be disposed between the water-receiving tray 533 and the water tank 532, and the water flowing out of the water-receiving tray 533 may be filtered by the filter 534 to ensure that the water entering the water pump 531 is kept clean. Further, a check valve 535 may be disposed between the water receiving tray 533 and the water tank 532, and the check valve 535 may control the flow of water in the water receiving tray 533 to the water tank 532 in a one-way manner. In addition, as for the water source of the water tank 532, besides the recycled water, a new water source can be additionally supplemented into the water tank 532, in some embodiments of the present application, a water replenishing port (not shown) is further disposed on the water tank 532, and when the water storage amount in the water tank 532 is insufficient during use, additional water is supplemented into the water tank 532 through the water replenishing port.

In some embodiments of the present application, a filter screen (not shown) may be further disposed on the water outlet of the water-receiving tray 533. Water collected by the water tray is primarily filtered through the filter screen to clean large impurities, so that water flowing back into the water tank is filtered and purified, the water pump 531 is prevented from being blocked by the impurities, and the use reliability is improved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An outdoor unit of an air conditioner for connecting an indoor unit of the air conditioner, comprising:

a housing;

an outdoor heat exchanger disposed in the housing;

2. The outdoor unit of claim 1, wherein the driving unit comprises a lifting mechanism and a rotating mechanism; the lifting mechanism is used for driving the water spraying component to longitudinally move along the height direction of the outdoor heat exchanger, and the rotating mechanism is used for driving the water spraying component to transversely rotate.

3. The outdoor unit of claim 2, wherein the rotation mechanism is provided at an elevating portion of the elevating mechanism, and the water discharge member is provided at a rotation portion of the rotation mechanism.

4. The outdoor unit of claim 2, wherein the elevating mechanism is provided at a rotating portion of the rotating mechanism, and the water discharge member is provided at an elevating portion of the elevating mechanism.

5. The outdoor unit of claim 3, wherein the elevating mechanism is an electric push rod, and a telescopic rod of the electric push rod forms the elevating part.

6. The outdoor unit of claim 3, wherein the elevating mechanism comprises a slide rail vertically arranged, a rack slidably mounted on the slide rail, a first gear engaged with the rack, and a first motor for driving the first gear to rotate, the rack forming the elevating part.

7. The outdoor unit of claim 3, wherein the rotation mechanism is a rotating motor, and a rotation shaft of the rotating motor forms the rotation part.

8. The outdoor unit of claim 3, wherein the rotation mechanism comprises a mounting base, a second gear rotatably mounted on the mounting base, a third gear engaged with the third gear, and a second motor for driving the second gear to rotate, the third gear forming the rotation part.

9. The outdoor unit of claim 1, wherein the washing unit further comprises a water supply unit and an extension pipe, and a water outlet of the water supply unit is connected to the water spray unit through the extension pipe.

10. The outdoor unit of claim 9, wherein the water supply unit comprises a water pump, a water tank, and a water receiving tray, a water inlet of the water pump is connected to the water tank, the water tank is located below the water receiving tray, the water receiving tray is located below the heat exchanger, and the water receiving tray is used for collecting water and delivering the water to the water tank.