CN220186961U

CN220186961U - Air conditioner

Info

Publication number: CN220186961U
Application number: CN202321413340.8U
Authority: CN
Inventors: 丁帮海
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-12-15
Anticipated expiration: 2033-06-05

Abstract

The utility model proposes an air conditioner, comprising: an outdoor air duct is arranged in the outdoor machine shell; a compressor; an outdoor heat exchanger side; the first throttling piece is arranged in the outdoor air duct; an indoor air duct is arranged in the indoor machine shell; the indoor heat exchanger is arranged in the indoor air duct; a refrigerant circuit sequentially connecting the compressor, the indoor heat exchanger, the first throttling element and the outdoor heat exchanger; the first heating pipe is arranged in the outdoor air duct and connected between the first throttling piece and the indoor heat exchanger, and the first heating pipe is arranged at the bottom of the outdoor heat exchanger so as to heat the outdoor heat exchanger; the bottom of the outdoor heat exchanger can be heated by utilizing heat generated by the phase change of the refrigerant in the first heating pipe so as to defrost the outdoor heat exchanger, the frequency of defrosting is reduced, and the ice layers in the outdoor heat exchanger and the air conditioner outdoor unit can be quickly melted.

Description

Air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner.

Background

The air conditioner may be a split type air conditioner including an air conditioner indoor unit including an indoor casing, an indoor fan, and an indoor heat exchanger, and an air conditioner outdoor unit including an outdoor casing, an outdoor fan, an outdoor heat exchanger, and a compressor.

When the air conditioner heats up and operates, the bottom temperature of the outdoor heat exchanger is usually lowest, the bottom of the outdoor heat exchanger generally enters a frosting state first, so that the air conditioner reaches a defrosting condition, the air conditioner is required to stop and cut into a refrigerating mode to defrost, the heating effect is poor, and the use experience of a user is influenced. When the outdoor heat exchanger operates in a low-temperature and high-humidity environment, the frosting speed of the outdoor heat exchanger is higher, the air conditioner can frequently enter defrosting action, meanwhile, when the outdoor heat exchanger operates in a harsher low-temperature environment, condensed water in a bottom plate of the casing is easy to freeze, a water outlet is blocked, an ice layer is thicker than the condensed water, an ice cone is formed, and finally, when an outdoor fan operates, fan blades collide with the ice cone, so that the quality problem of friction abnormal sound or fan blade breakage occurs.

At present, an electric heating pipe is additionally arranged on a shell bottom plate of an outdoor unit of an air conditioner to defrost and ice the outdoor heat exchanger and the shell bottom plate, however, the scheme for arranging the electric heating pipe can lead to the increase of the running power consumption of the air conditioner, the improvement of the power of the whole machine, the reduction of the energy efficiency of products and the increase of the running cost. Or, the high-temperature refrigerant discharged by the compressor is directly led to the bottom of the outdoor heat exchanger to defrost and defrost, but the scheme can lead to the reduction of the circulation quantity of the refrigerant, thereby greatly attenuating the performance of the air conditioner.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

To this end, according to an embodiment of the present disclosure, there is provided an air conditioner including:

the outdoor machine shell is provided with an outdoor air inlet and an outdoor air outlet, an outdoor air channel is arranged in the outdoor machine shell, and the outdoor air channel is communicated with the outdoor air inlet and the outdoor air outlet;

the compressor is arranged in the outdoor machine shell;

the outdoor heat exchanger is arranged in the outdoor air duct and is positioned at the inner side of the outdoor air inlet;

the first throttling piece is arranged in the outdoor air duct;

the indoor machine shell is provided with an indoor air inlet and an indoor air outlet, an indoor air channel is arranged in the indoor machine shell, and the indoor air channel is communicated with the indoor air inlet and the indoor air outlet;

the indoor heat exchanger is arranged in the indoor air duct;

a refrigerant circuit sequentially connecting the compressor, the indoor heat exchanger, the first throttling element and the outdoor heat exchanger;

the first heating pipe is arranged in the outdoor air duct and connected between the first throttling piece and the indoor heat exchanger, and the first heating pipe is arranged at the bottom of the outdoor heat exchanger so as to heat the outdoor heat exchanger.

The first heating pipe and the first heating pipe are arranged between the first throttling piece and the indoor heat exchanger and are positioned at the bottom of the outdoor heat exchanger, heat generated by the phase change of the refrigerant in the first heating pipe can be utilized to heat the bottom of the outdoor heat exchanger so as to defrost the outdoor heat exchanger, the time of heating stable operation of the air conditioner is prolonged, the defrosting interval of the air conditioner is prolonged, the frequency of entering defrosting is reduced, the refrigerating effect is improved, the continuous heating of the first heating pipe is realized, the outdoor heat exchanger and an ice layer in an outdoor unit of the air conditioner can be melted rapidly, and a large amount of freezing in the outdoor unit of the air conditioner is avoided.

According to an embodiment of the present disclosure, further comprising:

and the second throttling piece is connected between the heating pipe and the indoor heat exchanger.

According to the embodiment of the disclosure, the first heating pipe is arranged along the extending direction of the outdoor heat exchanger, so that the first heating pipe can uniformly heat the outdoor heat exchanger in the extending direction of the outdoor heat exchanger, and defrosting effect is improved.

According to the embodiment of the disclosure, the outdoor heat exchanger comprises a first section outdoor heat exchanger and a second section outdoor heat exchanger, the first section outdoor heat exchanger is located at the side part of the second section outdoor heat exchanger and is arranged at an included angle with the second section outdoor heat exchanger, and the first heating pipe comprises a first heating section and a third heating section arranged at the bottom of the first section outdoor heat exchanger and a second heating section arranged at the bottom of the second section outdoor heat exchanger, and the second heating section is connected between the first heating section and the second heating section.

According to an embodiment of the disclosure, the third heating section is provided at a rear side of the first heating section.

According to an embodiment of the disclosure, the outdoor housing includes a housing bottom plate disposed at a bottom of the outdoor housing, and the first heating pipe is disposed between the housing bottom plate and the outdoor heat exchanger.

According to the embodiment of the disclosure, the heating pipe placing part is arranged on the top surface of the bottom plate of the casing, and the first heating pipe is arranged in the heating pipe placing part and can play a role in positioning and fixing.

According to the embodiment of the disclosure, the top surface of the chassis bottom plate is provided with the water receiving tank, the water receiving tank is provided with the water receiving tank bottom wall, the water receiving tank bottom wall is provided with the water outlet, the third heating section is provided with the bending section avoiding the water outlet, and the bending section surrounds the outer side of the water outlet.

The third heating section is provided with the bending section, so that the third heating section is prevented from blocking the water outlet, the bending section is arranged to surround the outer side of the water outlet, ice at the water outlet can be defrosted by the third heating section, and the phenomenon that the water outlet is influenced by ice blockage is avoided.

According to the embodiment of the disclosure, the heating pipe placing part is a placing groove, the placing groove comprises a first placing groove, a second placing groove and a third placing groove, the first placing groove is arranged on one side, far away from the outdoor first side plate, of the water outlet, the first heating section is arranged in the first placing groove, the second heating section is arranged in the second placing groove, and the joint of the second heating section and the third heating section is arranged in the third placing groove.

According to an embodiment of the present disclosure, further comprising:

the first connecting piece, first connecting piece will first heating pipe with the casing bottom plate is connected, sets up first connecting piece and can fix first heating pipe on the casing bottom plate.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an air conditioner according to an embodiment of the present utility model;

fig. 2 is another schematic diagram of an air conditioner according to an embodiment of the present utility model;

fig. 3 is a front view of an air conditioner outdoor unit according to an embodiment of the present utility model;

fig. 4 is a perspective view of an air conditioner outdoor unit according to an embodiment of the present utility model;

fig. 5 is a perspective view of another view of an outdoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 6 is a partial structural schematic view of an outdoor unit of an air conditioner according to an embodiment of the present utility model;

fig. 7 is a partial structural view illustrating another view of an outdoor unit of an air conditioner according to an embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of the chassis base and the first heating tube according to an embodiment of the present utility model;

fig. 9 is an enlarged view at a in fig. 8;

FIG. 10 is an exploded view of a chassis floor and a first heating tube according to an embodiment of the present utility model;

FIG. 11 is another exploded view of a chassis floor and a first heating tube according to an embodiment of the present utility model;

FIG. 12 is a block diagram of a chassis base according to an embodiment of the present utility model;

fig. 13 is a structural view of a first heating pipe according to an embodiment of the present utility model.

In the above figures: an indoor heat exchanger 11; an air conditioner outdoor unit 20; an outdoor unit casing 21; a housing top plate 2101; a chassis base 2102; an outdoor first side plate 2103; an outdoor second side panel 2104; an outdoor third side panel 2105; an outdoor fourth side plate 2106; an outdoor air inlet 211; an outdoor first air inlet 2111; an outdoor second intake vent 2112; an outdoor air port 212; an outdoor air duct 213; a water receiving tank 214; a drain outlet 215; a heating pipe placement portion 216; a first placement groove 2161; a second placement groove 2162; a third placement groove 2163; an accommodation space 217; fan cavity 2171; a press cavity 2172; an outdoor fan 31; an outdoor heat exchanger 32; a first-stage outdoor heat exchanger 321; a second stage outdoor heat exchanger 322; a compressor 33; a first restriction 34; a first heating pipe 35; a first heating section 351; a second heating section 352; a first connection section 3521; a second connecting section 3522; a third connecting section 3523; a third heating section 353; bending section 3531; a second throttle 36; a second heating pipe 37; a third heating tube 38; a first shut-off valve 39; a second shut-off valve 40; a middle separator 41; a first connector 42.

Detailed Description

The present utility model will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

The present utility model proposes an air conditioner, and the air conditioner will be described with reference to fig. 1 to 13.

Referring to fig. 1 to 2, the air conditioner includes an air conditioner indoor unit and an air conditioner outdoor unit 20.

The indoor unit of the air conditioner comprises an indoor machine shell, an indoor fan and an indoor heat exchanger 11. The indoor air inlet and the indoor air outlet are communicated with the indoor air channel, wherein the indoor air inlet is used for introducing indoor air into the indoor air channel, and the indoor air outlet is used for leading out indoor air in the indoor air channel to the outside of the indoor air channel.

The indoor heat exchanger 11 is located in the indoor wind channel, indoor heat exchanger is used for carrying out the heat transfer with indoor wind channel internal air, indoor heat exchanger locates the inboard of indoor air intake, indoor fan locates in the indoor wind channel, be used for providing power for the air flow in the indoor wind channel, concretely, indoor fan locates the indoor heat exchanger and is close to one side of indoor air outlet, under indoor fan's drive, indoor air gets into in the indoor wind channel through indoor air intake, the air flow that gets into the indoor wind channel is to indoor heat exchanger department and indoor heat exchanger heat transfer, the indoor air after the heat transfer is discharged indoor wind channel through indoor air outlet.

Referring to fig. 3 to 6, the air conditioner outdoor unit 20 includes an outdoor housing 21, an outdoor fan 31, and an outdoor heat exchanger 32. The outdoor housing 21 is provided with an outdoor air inlet 211 and an outdoor air outlet 212, wherein an outdoor air channel 213 is arranged in the outdoor housing, the outdoor air inlet 211 and the outdoor air outlet 212 are communicated with the outdoor air channel 213, the outdoor air inlet is used for introducing outdoor air into the outdoor air channel, and the outdoor air outlet is used for leading out air in the outdoor air channel to the outside of the outdoor air channel.

The outdoor heat exchanger 32 is arranged in the outdoor air channel, the outdoor heat exchanger is used for exchanging heat with air in the outdoor air channel, the outdoor fan is arranged in the outdoor air channel and used for providing power for air flow in the outdoor air channel, the outdoor fan is arranged on one side, close to the outdoor air outlet, of the outdoor heat exchanger, under the driving of the outdoor fan, outdoor air enters the outdoor air channel through the outdoor air inlet, air flowing into the outdoor air channel flows to the outdoor heat exchanger to exchange heat with the outdoor heat exchanger, and the heat exchanged outdoor air is discharged out of the outdoor air channel through the outdoor air outlet.

The air conditioner further includes a compressor 33, wherein the compressor is provided in the outdoor unit casing. The compressor compresses refrigerant gas in a low-temperature and low-pressure state and discharges refrigerant gas in a high-temperature and high-pressure state. The air conditioner further includes a throttling element, which may be an expansion valve, wherein the throttling element may be an electronic expansion valve.

The air conditioner performs a refrigerating cycle of the air conditioner by using a compressor, a condenser, a throttle, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses refrigerant gas in a low-temperature and low-pressure state and discharges refrigerant gas in a high-temperature and high-pressure state. 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 liquid-phase refrigerant in a high-temperature and high-pressure state 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 may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.

In both the indoor heat exchanger and the outdoor heat exchanger, one of them is a condenser and the other is an evaporator, and when the indoor heat exchanger is used as the condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as the evaporator, the air conditioner is used as a cooler of a cooling mode.

Referring to fig. 1-2, the restriction includes a first restriction 34, and the first restriction 34 is disposed in the outdoor air duct. The air conditioner further includes a refrigerant circuit sequentially connected to the compressor, the indoor heat exchanger, the first throttling element, and the outdoor heat exchanger.

Referring to fig. 6 to 7, the air conditioner further includes a first heating pipe 35, the first heating pipe 35 being disposed in the outdoor air duct, the first heating pipe 35 being connected between the first throttling part and the indoor heat exchanger, the first heating pipe being disposed at the bottom of the outdoor heat exchanger to heat the outdoor heat exchanger. The first heating pipe may be a copper pipe.

When the air conditioner heats, the refrigerant flows along the refrigerant loop, the refrigerant flows out from the outlet of the compressor, flows into the compressor from the inlet of the compressor through the four-way valve, the indoor heat exchanger, the first heating pipe, the first throttling piece, the outdoor heat exchanger and the four-way valve, wherein the first throttling piece throttles, so that the indoor heating can be ensured, the first heating pipe and the first heating pipe are arranged between the first throttling piece and the indoor heat exchanger and are positioned at the bottom of the outdoor heat exchanger, when the indoor heating is performed, the first throttling piece throttles, the refrigerant with the relative medium temperature (35-40 ℃) after the indoor heat exchanger is condensed is directly led to the first heating pipe, the refrigerant continues to conduct condensation heat release in the first heating pipe, and the temperature of the bottom of the outdoor heat exchanger is always maintained in the medium temperature section through the condensation heat release of the refrigerant in the first heating pipe, so that the defrosting and deicing effects can be achieved.

The test shows that the temperature of the first heating pipe can be maintained above 25 ℃ when the heating operation is performed in the outdoor environment with the temperature of minus 10 ℃, and the heating effect is good. When the original whole machine operates under the outdoor defrosting working condition (dry bulb temperature is 2 ℃ and wet bulb temperature is 1 ℃), defrosting is carried out for 45 minutes basically, and after the first heating pipe is added, the stable operation time can be kept above 90 minutes, so that the heating effect is greatly enhanced.

Therefore, the first heating pipe and the first heating pipe are arranged between the first throttling element and the indoor heat exchanger and are positioned at the bottom of the outdoor heat exchanger, the heat generated by the phase change of the refrigerant in the first heating pipe can be used for heating the bottom of the outdoor heat exchanger so as to defrost the outdoor heat exchanger, the time for the stable operation of heating of the air conditioner is prolonged, the defrosting interval of the air conditioner is prolonged, the defrosting frequency of entering is reduced, the refrigerating effect is improved, and the ice layers in the outdoor heat exchanger and the air conditioner outdoor unit can be quickly melted through the continuous heating of the first heating pipe, so that a large amount of icing in the air conditioner outdoor unit is avoided.

Referring to fig. 1 to 2, the air conditioner further includes a second throttling member 36, and the second throttling member 36 is connected between the first heating pipe and the indoor heat exchanger. When the air conditioner heats and runs, the refrigerant flows along the refrigerant loop, and flows out from the outlet of the compressor, flows into the compressor from the inlet of the compressor through the four-way valve, the indoor heat exchanger, the second throttling piece, the first heating pipe, the first throttling piece, the outdoor heat exchanger and the four-way valve, wherein the second throttling piece does not throttle, and the opening degree of the second throttling piece is adjusted to be the maximum, so that the second throttling piece is avoided.

When the air conditioner is in refrigeration operation, the refrigerant flows out from the outlet of the compressor, flows into the compressor from the inlet of the compressor through the four-way valve, the outdoor heat exchanger, the first throttling piece, the first heating pipe, the second throttling piece, the indoor heat exchanger and the four-way valve, wherein the first throttling piece or the second throttling piece can be arranged for throttling according to the requirement, the refrigerant in the first heating pipe can absorb heat or release heat, and when the refrigerant in the first heating pipe absorbs heat, the first heating pipe can cool the air conditioner outdoor unit.

The first heating pipe, the first throttling piece, the second throttling piece, the indoor heat exchanger and the outdoor heat exchanger are arranged in series, so that the flow rate of a refrigerant can be improved, and the condensation heat exchange intensity of the first heating pipe is increased.

In some embodiments of the present utility model, referring to fig. 6 to 7, the first heating pipe 35 is disposed along the extension direction of the outdoor heat exchanger 32, so that the first heating pipe can uniformly heat the outdoor heat exchanger in the extension direction of the outdoor heat exchanger, thereby improving the defrosting effect.

Referring to fig. 6 to 8, the outdoor heat exchanger 32 includes a first outdoor heat exchanger 321 and a second outdoor heat exchanger 322, where the first outdoor heat exchanger 321 is located at a side portion of the second outdoor heat exchanger 322, and the first outdoor heat exchanger 321 and the second outdoor heat exchanger 322 are disposed at an included angle, the first heating pipe 35 includes a first heating section 351 and a third heating section 353 disposed at a bottom of the first outdoor heat exchanger, and a second heating section 352 disposed at a bottom of the second outdoor heat exchanger, and the second heating section 352 is connected between the first heating section 351 and the second heating section 352, and is provided with the first heating section, the second heating section and the third heating section, so that each bottom of the first outdoor heat exchanger and the second outdoor heat exchanger can be heated by aligning a heating portion, and defrosting and deicing can be ensured.

Referring to fig. 3 to 6, the outdoor unit includes a top plate 2101 disposed at the top of the outdoor unit and a bottom plate 2102 disposed at the bottom of the outdoor unit, and further includes a first outdoor side plate 2103 disposed at the rear side of the outdoor unit and a third outdoor side plate 2105 disposed at the front side of the outdoor unit, and further includes a second outdoor side plate 2104 and a fourth outdoor side plate 2106 disposed at the side of the outdoor unit and connected to the side of the first outdoor side plate, wherein the second outdoor side plate is disposed at an angle with the first outdoor side plate, and the fourth outdoor side plate is disposed at an angle with the first outdoor side plate, and the second outdoor side plate is disposed opposite to the fourth outdoor side plate.

The outdoor air inlet comprises an outdoor first air inlet 2111 formed in the outdoor first side plate and an outdoor second air inlet 2112 formed in the outdoor second side plate, the first-section indoor heat exchanger is arranged on the inner side of the outdoor first air inlet, the second-section outdoor heat exchanger is arranged on the inner side of the outdoor second air inlet, the third heating section is arranged on one side, close to the outdoor first side plate, of the first heating section, namely the third heating section is arranged on the rear side of the first heating section.

The first heating pipe is arranged between the shell bottom plate 2102 and the outdoor heat exchanger, wherein the shell bottom plate can receive condensed water flowing down on the outdoor heat exchanger, and when the air conditioner heats and operates, the condensed water on the shell bottom plate is easy to freeze, so that the first heating pipe is arranged between the shell bottom plate 2102 and the outdoor heat exchanger, the first heating pipe melts the condensed water on the shell bottom plate, and the icing degree on the shell bottom plate is reduced.

Referring to fig. 11, a heating pipe placing portion 216 is provided on the top surface of the chassis base 2102, and a first heating pipe is provided in the heating pipe placing portion, which can play a role in positioning and fixing. The heating pipe placing part can be a placing groove, the top surface of the bottom plate of the machine shell is provided with a water receiving groove 214, and the water receiving groove is communicated with the placing groove.

Referring to fig. 8-10, the water receiving tank is provided with a water receiving tank bottom wall, a water outlet 215 is arranged on the water receiving tank bottom wall, a bending section 3531 avoiding the water outlet is arranged on the third heating section, and the bending section surrounds the outer side of the water outlet. The third heating section is provided with the bending section, so that the third heating section is prevented from blocking the water outlet, the bending section is arranged to surround the outer side of the water outlet, ice at the water outlet can be defrosted by the third heating section, and the phenomenon that the water outlet is influenced by ice blockage is avoided.

The water outlet is connected with a water draining joint, the water draining joint is inserted into the water outlet from the bottom of the bottom plate of the shell and is clamped at the water outlet, and the water draining joint can be connected with a water draining pipe.

Referring to fig. 12, the placement groove includes a first placement groove 2161, a second placement groove 2162 and a third placement groove 2163, the first placement groove is disposed at a side of the drain opening away from the outdoor first side plate, that is, the first placement groove is disposed at a front side of the drain opening, the first heating section is disposed in the first placement groove, the second heating section is disposed in the second placement groove, and a junction of the second heating section and the third heating section is disposed in the third placement groove.

In some embodiments of the present utility model, the second heating section includes a first connection section 3521 connected to the first heating section, a second connection section 3522 connected to the third heating section, and a third connection section 3523 connected between the first connection section and the second connection section, wherein the first connection section and the second connection section may be disposed in parallel, the third connection section may be an arc section, the second connection section and the third heating section are smoothly connected, and a junction of the two is located in the third placement groove.

In some embodiments of the utility model, referring to fig. 13, the air conditioner further comprises a second heating pipe 37 and/or a third heating pipe 38, the second heating pipe being connected between the second throttle and the first heating pipe; the third heating pipe is connected between the first throttling element and the first heating pipe, and the second heating pipe and the third heating pipe are arranged at the same side end of the outdoor heat exchanger. The second heating tube and the third heating tube may be copper tubes.

In some embodiments of the present utility model, referring to fig. 3 to 6, a receiving space 217 is provided in the outdoor cabinet, wherein the outdoor fan, the outdoor heat exchanger, and the compressor are provided in the receiving space.

The air conditioner outdoor unit 20 further comprises a middle partition board 41, the middle partition board 41 is arranged in the accommodating space 217, the accommodating space is divided into a fan cavity 2171 and a press cavity 2172 by the middle partition board 41, an outdoor fan is arranged in the fan cavity, a compressor is arranged in the press cavity, and an outdoor air inlet and an outdoor air outlet are both communicated with the fan cavity.

One end of the second heating pipe connected with the second throttling element is arranged in the cavity of the press, and one end of the third heating pipe connected with the indoor heat exchanger is arranged in the cavity of the press.

The bottom of middle baffle is connected with the chassis bottom plate to, the middle baffle is non-horizontal setting. Specifically, the middle partition plate can be vertically arranged, and the middle partition plate divides the accommodating space into a fan cavity and a press cavity which are arranged in parallel in the horizontal direction.

In some embodiments of the present utility model, the first throttling element is used for throttling and reducing pressure when the outdoor heat exchanger in the heating mode evaporates, and the opening of the first throttling element is freely controlled according to the exhaust superheat degree of the compressor, that is, when the exhaust superheat degree of the compressor is too high, the opening of the first throttling element is increased, and when the exhaust superheat degree of the compressor is too low, the opening of the first throttling element is reduced.

In some embodiments of the present utility model, referring to fig. 1-2, the air conditioner further includes a first shut-off valve 39 and a second shut-off valve 40, the first shut-off valve being disposed between the second throttling element and the indoor heat exchanger, and the second shut-off valve being disposed between the indoor heat exchanger and the four-way valve.

The air conditioner further comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used for detecting the temperature of the refrigerant at the inlet of the compressor, the second temperature sensor is used for detecting the temperature of the refrigerant at the outlet of the compressor, the first temperature sensor is arranged on a pipeline between the four-way valve and the inlet of the compressor, and the second temperature sensor is arranged on a pipeline between the four-way valve and the outlet of the compressor.

In some embodiments of the present utility model, referring to fig. 9, the air conditioner further includes a first connection member 42, wherein the first connection member connects the first heating pipe with the cabinet base, and the first connection member is provided to fix the first heating pipe on the cabinet base, and in particular, the first connection member connects the third heating section with the cabinet base, and the first connection member may have two.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying 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 one or more such feature.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An air conditioner, comprising:

the compressor is arranged in the outdoor machine shell;

the first throttling piece is arranged in the outdoor air duct;

the indoor heat exchanger is arranged in the indoor air duct;

2. The air conditioner of claim 1, further comprising:

3. An air conditioner according to claim 2, wherein the first heating pipe is disposed along an extending direction of the outdoor heat exchanger.

4. The air conditioner of claim 3, wherein the outdoor heat exchanger comprises a first section of outdoor heat exchanger and a second section of outdoor heat exchanger, the first section of outdoor heat exchanger is positioned at the side part of the second section of outdoor heat exchanger and is arranged at an included angle with the second section of outdoor heat exchanger, the first heating pipe comprises a first heating section and a third heating section which are arranged at the bottom of the first section of outdoor heat exchanger, and a second heating section which is arranged at the bottom of the second section of outdoor heat exchanger, and the second heating section is connected between the first heating section and the second heating section.

5. The air conditioner of claim 4, wherein the third heating section is provided at a rear side of the first heating section.

6. The air conditioner of claim 4, wherein the outdoor unit includes a unit bottom plate provided at a bottom of the outdoor unit, and the first heating pipe is provided between the unit bottom plate and the outdoor heat exchanger.

7. The air conditioner of claim 6, wherein a heating pipe placement portion is provided on a top surface of the cabinet base plate, and the first heating pipe is provided in the heating pipe placement portion.

8. The air conditioner of claim 7, wherein a water receiving tank is arranged on the top surface of the bottom plate of the casing, the water receiving tank is provided with a water receiving tank bottom wall, a water outlet is arranged on the water receiving tank bottom wall, a bending section avoiding the water outlet is arranged on the third heating section, and the bending section surrounds the outer side of the water outlet.

9. The air conditioner of claim 8, wherein the heating pipe placement portion is a placement groove, the placement groove comprises a first placement groove, a second placement groove and a third placement groove, the first placement groove is arranged on one side of the water outlet far away from the outdoor first side plate, the first heating section is arranged in the first placement groove, the second heating section is arranged in the second placement groove, and a joint of the second heating section and the third heating section is arranged in the third placement groove.

10. The air conditioner as set forth in claim 6, further comprising:

the first connecting piece is used for connecting the first heating pipe with the bottom plate of the shell.