CN218495413U - Heat exchanger and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses a heat exchanger, including: the heat exchange pipeline comprises a condensation section; a liquid storage tank, the interior of which is provided with a moving part; the moving part divides the liquid storage tank into a first chamber and a second chamber which are adjacent left and right, and the moving part can move left and right to adjust the liquid storage amount of the first chamber; the first chamber is provided with a first inlet and outlet pipe and a second inlet and outlet pipe; the first end of the first inlet and outlet pipe is communicated with the liquid storage tank, and the second end of the first inlet and outlet pipe is communicated with one part of the condensation section; the first end of the second inlet and outlet pipe is communicated with the liquid storage tank, and the second end of the second inlet and outlet pipe is communicated with the other part of the condensation section; and the distance from the first end of the first inlet and outlet pipe to the bottom of the liquid storage tank is smaller than the distance from the first end of the second inlet and outlet pipe to the bottom of the liquid storage tank. The amount of liquid stored in the first chamber is adjusted by the moving section. The application also discloses an air conditioner.

Description

Heat exchanger and air conditioner

Technical Field

The application relates to the technical field of air conditioners, for example to a heat exchanger and an air conditioner.

Background

At present, an air conditioner, as a very common electric appliance, can operate in a cooling or heating mode to adjust the indoor temperature of a user, and is widely applied to various living or working environments such as homes, offices, markets and the like. The optimal refrigerant amount required by the air conditioner is different when the air conditioner operates under different operating ambient temperatures and different loads. For example, when an air conditioner refrigerates, the heat exchange coefficient of the condenser is large, and the content of the liquid refrigerant in the condenser is increased. However, at this time, the refrigerant flow rate required by the evaporator is small, that is, the actual refrigerant flow rate is larger than the refrigerant flow rate required by the system, which results in energy efficiency loss of the system.

In the related art, a refrigerant storage device is generally arranged between an indoor heat exchanger and an outdoor heat exchanger, and electromagnetic valves and capillary tubes are arranged at two ends of the refrigerant storage device to control the flow of the refrigerant, so that the refrigerant storage device plays a role in storing the refrigerant.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

because the solenoid valve and the capillary tube are needed to be arranged at the two ends of the refrigerant storage device to control the refrigerant flow, the pipeline cost is high, the control is complex, and the system reliability is poor. Moreover, the liquid storage capacity of the refrigerant storage device cannot be adjusted.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a heat exchanger and an air conditioner, and solves the problems of high pipeline cost, complex control, poor system reliability and incapability of adjusting the liquid storage capacity of a refrigerant storage device.

In some embodiments, the heat exchanger comprises:

the heat exchange pipeline comprises a condensation section;

a liquid storage tank, the interior of which is provided with a moving part; the moving part divides the liquid storage tank into a first chamber and a second chamber which are adjacent left and right, and the moving part can move left and right to adjust the liquid storage amount of the first chamber;

the first chamber is provided with a first inlet and outlet pipe and a second inlet and outlet pipe; the first end of the first inlet and outlet pipe is communicated with the liquid storage tank, and the second end of the first inlet and outlet pipe is communicated with one part of the condensation section; the first end of the second inlet and outlet pipe is communicated with the liquid storage tank, and the second end of the second inlet and outlet pipe is communicated with the other part of the condensation section;

and the distance from the first end of the first inlet and outlet pipe to the bottom of the liquid storage tank is smaller than the distance from the first end of the second inlet and outlet pipe to the bottom of the liquid storage tank.

Optionally, the moving part includes:

the partition plate is used for partitioning the interior of the liquid storage tank into the first chamber and the second chamber;

and one end of the moving rod is connected to the plate surface of the partition plate positioned in the second chamber, and the moving rod can move left and right to drive the partition plate to move synchronously.

Optionally, the partition is perpendicular to the bottom surface of the liquid storage tank.

Optionally, the moving part further includes:

and the driving device is connected to the moving rod and used for driving the moving rod to move left and right.

Optionally, one end of the moving rod, which is far away from the partition plate, extends out of the liquid storage tank; the driving device includes:

the motor is arranged outside the liquid storage tank, the driving end of the motor is connected to one end, extending out of the liquid storage tank, of the moving rod through a transmission component, and the motor drives the moving rod to move left and right when rotating.

Optionally, the amount of the liquid stored in the first compartment is inversely proportional to the operating frequency of the compressor.

In some embodiments, the air conditioner includes the heat exchanger of any of the above embodiments.

Optionally, the heat exchanger is used as an outdoor unit of the air conditioner.

Optionally, when the air conditioner operates in the refrigeration mode, the refrigerant flows into the liquid storage tank from the first inlet/outlet pipe, and flows out of the liquid storage tank from the second inlet/outlet pipe.

Optionally, when the air conditioner operates in the heating mode, the refrigerant flows into the liquid storage tank from the second inlet/outlet pipe, and flows out of the liquid storage tank from the first inlet/outlet pipe.

In some embodiments, the air conditioner includes the heat exchanger of any of the above embodiments.

The heat exchanger and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

when the heat exchanger is used as a condenser, the refrigerant enters the liquid storage tank from the first inlet and outlet pipe and flows out of the liquid storage tank from the second inlet and outlet pipe. Because the height difference exists between the first end of the first inlet and outlet pipe and the first end of the second inlet and outlet pipe, the volume of the liquid storage tank corresponding to the height difference can store the refrigerant, and therefore the refrigerant flow of the system is reduced. In addition, when the heat exchanger is used as an evaporator, the refrigerant enters the liquid storage tank from the second inlet and outlet pipe and flows out of the liquid storage tank from the first inlet and outlet pipe. At the moment, the refrigerant in the liquid storage tank is less, and most of the refrigerant is discharged through the first inlet and outlet pipe, so that the refrigerant flow of the system is increased. Therefore, the refrigerant flow of the refrigerant circulation loop is self-adaptively adjusted through the liquid storage tank under different working conditions and loads, the structure is simple, the cost is low, the control is simple, and the system reliability is high.

When the moving section moves left and right, the volume of the first chamber changes, and the liquid storage amount of the first chamber is adjusted.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic structural diagram of a heat exchanger provided by an embodiment of the present disclosure;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a semiconductor refrigeration device provided by an embodiment of the present disclosure;

fig. 4 is a schematic structural view of a heating coil provided in the embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a phase change heat storage material provided by an embodiment of the disclosure;

FIG. 6 is a schematic structural view of a fin provided by an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a moving part provided in the embodiment of the present disclosure.

Reference numerals:

100: a liquid storage tank; 101: a first inlet and outlet pipe; 102: a second inlet and outlet pipe; 110: a semiconductor refrigeration device; 120: a heating coil; 130: a fin; 140: a phase change heat storage material; 150: a partition plate; 160: a travel bar; 170: a drive device;

200: a heat exchanger; 201: a first heat exchange path; 202: a second heat exchange path; 210: a first main pipeline; 211: a second main pipeline; 220: a first shunt element; 221: a second flow dividing element.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the devices, elements or components indicated to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or position, for example, the term "on" may also be used to indicate some kind of attachment or connection in some cases. The specific meanings of these terms in the embodiments of the present disclosure may be understood as specific cases by those of ordinary skill in the art.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1-7, embodiments of the present disclosure provide a heat exchanger 200 including a heat exchange line and a receiver tank 100. The heat exchange pipeline comprises a condensation section and a supercooling section which are communicated; a moving part is arranged in the liquid storage tank 100; the moving part divides the liquid storage tank 100 into a first chamber and a second chamber which are adjacent left and right, and the moving part can move left and right to adjust the liquid storage amount of the first chamber; wherein, the first compartment is provided with a first inlet and outlet pipe 101 and a second inlet and outlet pipe 102; a first end of the first inlet and outlet pipe 101 is communicated with the liquid storage tank 100, and a second end thereof is communicated with a part of the condensation section; a first end of the second inlet and outlet pipe 102 is communicated with the liquid storage tank 100, and a second end thereof is communicated with the other part of the condensation section; moreover, the distance from the first end of the first inlet and outlet pipe 101 to the bottom of the liquid storage tank 100 is less than the distance from the first end of the second inlet and outlet pipe 102 to the bottom of the liquid storage tank 100.

With the heat exchanger 200 provided in the embodiment of the present disclosure, when the heat exchanger 200 is used as a condenser, the refrigerant enters the liquid storage tank 100 through the first inlet/outlet pipe 101 and flows out of the liquid storage tank 100 through the second inlet/outlet pipe 102. Since a height difference exists between the first end of the first inlet/outlet pipe 101 and the first end of the second inlet/outlet pipe 102, a volume of the first chamber corresponding to the height difference can store a refrigerant, thereby reducing a refrigerant flow rate of the system. Moreover, the liquid storage tank 100 is disposed in the condensing section, and the refrigerant storage capacity of the liquid storage tank is a fixed value in the supercooling section as compared with the supercooling section, and the refrigerant storage capacity of the liquid storage tank is matched with the dryness of the condensing section at the setting position in the condensing section, so that the liquid storage tank can be matched with the refrigerant flow under different loads. In addition, when the heat exchanger 200 is used as an evaporator, the refrigerant enters the accumulator 100 through the second inlet/outlet pipe 102 and flows out of the accumulator 100 through the first inlet/outlet pipe 101. At this time, the refrigerant in the liquid storage tank 100 is less, and most of the refrigerant is discharged through the first inlet and outlet pipe 101, thereby increasing the refrigerant flow rate of the system. Therefore, the refrigerant flow of the refrigerant circulation loop is self-adaptively adjusted through the liquid storage tank 100 under different working conditions and loads, the structure is simple, the cost is low, the control is simple, and the system reliability is high.

When the moving part moves left and right, the volume of the first chamber changes, and the liquid storage amount of the first chamber is adjusted.

Optionally, the amount of liquid stored in the first compartment is inversely proportional to the compressor operating frequency. For example, when the heat exchanger 200 is used as a condenser and the air conditioner operates in a rated cooling mode, the liquid storage amount of the liquid storage tank 100 is adjusted to 50% by the moving part; when the air conditioner operates in the intermediate cooling mode, the liquid storage amount of the liquid storage tank 100 is adjusted to 80% by the moving part. This effectively improves the energy efficiency of the heat exchanger 200.

Optionally, the first inlet and outlet pipes 101 are vertically arranged. Thus, the inflow and outflow of the refrigerant are facilitated, and the stroke of the refrigerant in the receiver 100 is reduced.

Alternatively, the second inlet and outlet pipes 102 are vertically arranged. Thus, the inflow and outflow of the refrigerant are facilitated, and the stroke of the refrigerant in the receiver 100 is reduced.

Optionally, the heat exchange pipeline is constructed in a vertical single-row structure and comprises twelve heat exchange pipes; the liquid storage tank 100 is communicated between the eighth heat exchange tube and the ninth heat exchange tube which are counted from top to bottom.

In the present embodiment, as shown in fig. 1 and 2, the heat exchange pipeline includes a first main pipeline 210, a second main pipeline 211, a first heat exchange passage 201 and a second heat exchange passage 202. Wherein a first end of the first heat exchange passage 201 and a first end of the second heat exchange passage 202 are communicated with the first flow dividing element 220, and a second end of the first heat exchange passage 201 and a second end of the second heat exchange passage 202 are communicated with the second flow dividing element 221; first shunt element 220 is in communication with first main conduit 210, and second shunt element 221 is in communication with second main conduit 211. Wherein, the first heat exchange passage 201 flows through the first, second, eighth to tenth heat exchange tubes counted from top to bottom, the second heat exchange passage 202 flows through the third to seventh heat exchange tubes counted from top to bottom, and the second main pipeline 211 flows through the eleventh and twelfth heat exchange tubes counted from top to bottom. The liquid storage tank 100 is arranged on the first heat exchange passage 201, and the second end of the first inlet and outlet pipe 101 is communicated with the eighth heat exchange pipe counted from top to bottom; the second end of the second inlet and outlet pipe 102 is communicated with a ninth heat exchange pipe counted from top to bottom.

Optionally, a plurality of liquid storage tanks 100 are provided on the condensing section.

For example, a liquid storage tank 100 is disposed on each of the first heat exchanging passage 201 and the second heat exchanging passage 202, and the liquid storage tank 100 may store the refrigerant flowing through each passage.

Alternatively, as shown in fig. 7, the moving part includes a partition 150 and a moving bar 160. The partition 150 is used for dividing the interior of the fluid reservoir tank 100 into a first compartment and a second compartment; one end of the moving rod 160 is connected to the plate surface of the partition 150 located in the second compartment, and the moving rod 160 can move left and right to drive the partition 150 to move synchronously.

In the present embodiment, when the moving rod 160 moves, the partition 150 is driven to move synchronously, and the volume of the first chamber changes, i.e., the amount of the stored liquid changes when the partition 150 moves in the liquid storage tank 100. This enables the fluid reservoir tank 100 to maintain a proper amount of fluid reservoir under different loads by adjusting the position of the travel bar 160.

Optionally, the partition 150 is perpendicular to the bottom surface of the fluid reservoir tank 100. In this embodiment, a sealing rubber ring is provided on a side surface of the partition plate 150, and the sealing performance between the first compartment and the second compartment is improved by the sealing rubber ring. Moreover, the moving rod 160 is perpendicular to the partition 150 and connected to the center of the partition 150, so as to ensure the stability of the moving rod 160 driving the partition 150 to move in the storage tank 100.

Optionally, the moving part further comprises a driving device 170. The driving device 170 is connected to the moving rod 160 for driving the moving rod 160 to move left and right.

Optionally, an end of the travel bar 160 distal from the partition 150 extends out of the reservoir tank 100; the driving device 170 includes a motor, the motor is disposed outside the liquid storage tank 100, and a driving end of the motor is connected to one end of the moving rod 160 extending out of the liquid storage tank 100 through a transmission member, and the motor drives the moving rod 160 to move left and right when rotating.

In this embodiment, a rack is disposed at an end of the movable rod 160 extending out of the liquid storage tank 100, and a gear adapted to the rack is sleeved on a driving shaft of the motor and engaged with the rack. Illustratively, the first compartment is located on the left side of the second compartment, and when the motor is started and the driving shaft rotates in the forward direction, the moving rod 160 is driven to move to the left, and the partition 150 moves synchronously with the moving rod 160 so that the liquid storage amount in the first compartment is reduced. When the motor is started and the driving shaft rotates in the reverse direction, the moving rod 160 is driven to move rightwards, and the partition plate 150 moves synchronously with the moving rod 160, so that the liquid storage amount of the first chamber is increased.

Optionally, as shown in fig. 3, the heat exchanger 200 further comprises the semiconductor refrigeration device 110. The semiconductor refrigeration device 110 is disposed on an outer wall of the liquid storage tank 100 for adjusting a temperature of a refrigerant in the liquid storage tank 100. And, the semiconductor cooling device 110 avoids the moving rod 160 protruding out of the fluid reservoir tank 100.

In this embodiment, the semiconductor refrigeration device 110 can transmit cold or heat to the refrigerant in the accumulator 100. When the heat exchanger 200 is used as a condenser, the semiconductor refrigeration device 110 cools the refrigerant in the liquid storage tank 100 to reduce the temperature of the refrigerant, which is equivalent to supercooling the refrigerant, thereby reducing the length of a supercooling section and reducing the cost and size of the heat exchanger 200. In addition, by controlling the amount of cooling supplied from the semiconductor cooling device 110, the supercooling degree of the air conditioning system can be accurately controlled, thereby improving the cooling capacity of the air conditioner. When the heat exchanger 200 is used as an evaporator, heat is supplied to the liquid storage tank 100 through the semiconductor refrigeration device 110 to increase the temperature of the refrigerant, so that the liquid refrigerant in the liquid storage tank 100 is gasified to participate in refrigerant circulation, thereby improving the heating capacity of the air conditioner.

Optionally, the semiconductor cooling device 110 comprises a cooling fin. The refrigerating sheet is attached to an outer wall of the liquid storage tank 100 and used for supplying cold or heat to the refrigerant in the liquid storage tank 100.

In this embodiment, the cooling fins operate by using a dc current, and the polarity of the dc current is changed to determine whether to perform cooling or heating on the same cooling fin. The refrigerating sheet supplies cold or heat to the refrigerant inside the liquid storage tank 100 through the outer wall thereof.

Optionally, the semiconductor refrigeration device 110 further comprises a mount. The mounting seat is arranged on the outer wall of the liquid storage tank 100 and used for fixing the refrigeration sheet.

Optionally, the semiconductor refrigeration device 110 is disposed at the bottom of the outside of the liquid storage tank 100. In this embodiment, the refrigeration sheet is fixed to the bottom of the liquid storage tank 100 through the mounting seat, and the refrigeration sheet supplies cold or heat to the refrigerant inside the refrigeration sheet through the bottom wall of the liquid storage tank 100.

Optionally, two semiconductor refrigeration devices 110 are oppositely disposed on the sidewalls of the two sides of the liquid storage tank 100. In this embodiment, the refrigeration pieces are fixed on two sides of the liquid storage tank 100 through the mounting seat and have the same height, so that the refrigeration pieces on the two sides simultaneously supply cold or heat to the refrigerant in the liquid storage tank 100, and the temperature change of the refrigerant is more uniform.

Optionally, the plurality of semiconductor refrigeration devices 110 are uniformly disposed on the sidewall of the liquid storage tank 100 along the axis of the liquid storage tank 100. In the present embodiment, the plurality of cooling fins are uniformly arranged along the axis of the liquid storage tank 100, i.e. along the height direction of the liquid storage tank 100, so that the cooling or heating effect is ensured under the condition that the liquid level of the liquid storage tank 100 is high.

Optionally, the heat exchanger 200 further comprises a heating device. The heating device is disposed on an outer wall of the liquid storage tank 100 for heating the refrigerant in the liquid storage tank 100. And the heating device is retracted from the travel bar 160 extending out of the fluid reservoir tank 100.

In this embodiment, heat may be transferred to the refrigerant in the receiver 100 by the heating device. When the heat exchanger 200 is used as an evaporator, heat is supplied to the liquid storage tank 100 through the heating device to increase the temperature of the refrigerant, so that the liquid refrigerant in the liquid storage tank 100 is gasified to participate in refrigerant circulation, thereby improving the heating capacity of the air conditioner.

Alternatively, as shown in fig. 4, the heating means includes a heating coil 120. The heating coil 120 is disposed around the side of the fluid reservoir 100. When the heating coil 120 is powered on, it generates heat, and then supplies heat to the refrigerant inside the liquid storage tank 100 through the side wall of the liquid storage tank 100, so that the liquid refrigerant in the liquid storage tank 100 is gasified to participate in the refrigerant circulation, thereby improving the heating capacity of the air conditioner.

Optionally, the heating coil 120 is located in a lower-middle portion of the side of the fluid reservoir 100. The liquid refrigerant stored in the liquid storage tank 100 is mainly located at the middle lower portion thereof, and the heating coil 120 is disposed at a position convenient for heating the refrigerant.

Alternatively, the power of the heating coil 120 may be adjusted. In the present embodiment, the power of the heating coil 120 is adjusted to adjust the vaporization rate of the refrigerant in the liquid storage tank 100, thereby adjusting the amount of the refrigerant that participates in the circulation. For example, the power of the heating coil 120 is set to three, and the heating capacity of the air conditioner is improved by increasing the power of the heating coil 120 and further increasing the refrigerant flow rate by increasing the shift position of the heating coil 120 as the outside temperature decreases.

Optionally, the heat exchanger 200 further comprises a plurality of fins 130. The plurality of fins 130 surround the side of the fluid reservoir tank 100 and are uniformly arranged along the axis of the fluid reservoir tank 100; the heating coil 120 is disposed between adjacent fins 130.

In the present embodiment, the heat exchange capability of the liquid storage tank 100 is improved by providing the fins 130, so as to facilitate the improvement of the dryness of the refrigerant at the inlet of the evaporator when the heat exchanger 200 is used as a condenser. The heating coil 120 may be disposed to supply heat to the refrigerant in the accumulator 100, so as to improve the flow rate of the refrigerant when the heat exchanger 200 is used as an evaporator.

Alternatively, the number of turns of the heating coil 120 between the adjacent fins 130 is the same. Thus, heat can be supplied to the refrigerant in the receiver 100 more uniformly, and the liquid refrigerant in the receiver 100 is gasified to participate in the refrigerant circulation.

Optionally, the heat exchanger 200 further comprises a phase change thermal storage device. The phase change heat storage device is disposed on an outer wall of the liquid storage tank 100, and is configured to absorb heat of a refrigerant in the liquid storage tank 100 through phase change. And, the phase change heat storage device avoids the moving rod 160 protruding out of the liquid storage tank 100.

In this embodiment, when the heat exchanger 200 is used as a condenser, the phase change heat storage device absorbs heat of the refrigerant in the liquid storage tank 100 to reduce the temperature of the refrigerant, which is equivalent to supercooling the refrigerant, thereby reducing the length of the supercooling section and reducing the cost and size of the heat exchanger 200.

Alternatively, as shown in fig. 5, the phase change heat storage device includes a phase change heat storage material 140. The phase change heat storage material 140 is wrapped on the outer wall of the liquid storage tank 100, and the phase change heat storage material 140 absorbs heat of the refrigerant inside the liquid storage tank 100 through the outer wall of the liquid storage tank and stores the heat through phase change.

Optionally, a phase change thermal storage material 140 surrounds the sides and bottom of the fluid reservoir tank 100. Thus, the heat of the refrigerant inside the receiver 100 is absorbed.

Optionally, a phase change thermal storage material 140 is wrapped around the lower-middle portion of the sides of the fluid reservoir tank 100. The liquid refrigerant stored in the receiver 100 is mainly located at the middle lower portion thereof, and the phase change heat storage material 140 is disposed at a position convenient for absorbing heat of the refrigerant.

Optionally, the thickness of the phase change heat storage material 140 wrapped around the side of the fluid reservoir 100 is greater than the thickness of the phase change heat storage material 140 wrapped around the bottom of the fluid reservoir 100. The reservoir tank 100 has a cylindrical shape, and the area of the side surface is larger than the area of the bottom surface. Therefore, the phase change heat storage material 140 wrapped on the side of the liquid storage tank 100 has a larger thickness, which is beneficial to absorbing the heat of the refrigerant in the liquid storage tank 100.

Optionally, the phase change temperature of the phase change heat storage material 140 is 20 ℃ to 30 ℃. When the heat exchanger 200 is used as a condenser, the temperature of the refrigerant flowing through the liquid storage tank 100 is 35-40 ℃. At this time, the temperature of the refrigerant is higher than the phase change temperature of the phase change heat storage material 140, and the heat of the refrigerant is transferred to the phase change heat storage material 140 to change the phase thereof, thereby reducing the temperature of the refrigerant.

Optionally, the storage tank 100 further comprises a heat exchange device. The heat exchange device is disposed on an outer wall of the liquid storage tank 100, so as to facilitate heat exchange of the refrigerant inside the liquid storage tank 100. And the heat exchange device is retracted from the travel bar 160 extending out of the fluid reservoir tank 100.

In this embodiment, when the heat exchanger 200 is used as a condenser, the temperature of the refrigerant in the liquid storage tank 100 is reduced by exchanging heat with the external environment through the heat exchanging device, which is equivalent to supercooling the refrigerant, thereby reducing the length of the supercooling section and reducing the cost and size of the heat exchanger 200. And, the refrigerant quality of the evaporator inlet is improved.

Optionally, as shown in fig. 6, the heat exchange means comprises fins 130. The fins 130 are disposed around the sides of the tank of the fluid reservoir tank 100. This is beneficial to the heat exchange between the refrigerant in the liquid storage tank 100 and the external environment, thereby reducing the temperature of the refrigerant.

Alternatively, the plurality of fins 130 are arranged along the axis of the fluid reservoir 100. In the present embodiment, the plurality of fins 130 are disposed along the axis of the liquid storage tank 100, i.e., along the height direction of the liquid storage tank 100, so that the heat exchange effect is ensured under the condition that the liquid level of the liquid storage tank 100 is high.

Optionally, the spacing of adjacent fins 130 is the same. This is beneficial to the uniform heat exchange between the refrigerant in the liquid storage tank 100 and the external environment.

Optionally, the fins 130 are integrally formed with the fluid reservoir tank 100. This simplifies the connection between the fins 130 and the fluid reservoir tank 100.

Optionally, the fins 130 are made of aluminum, copper, or an aluminum alloy. The aluminum, copper or aluminum alloy has excellent heat conductivity, and is beneficial to heat exchange between the refrigerant in the liquid storage tank 100 and the external environment.

Optionally, a temperature sensor is provided within the fluid reservoir tank 100. The temperature sensor is used for detecting the temperature of the refrigerant in the liquid storage tank 100. Thus, the temperature of the refrigerant in the liquid storage tank 100 can be monitored in real time through the temperature sensor.

Optionally, a pressure sensor is provided within the fluid reservoir tank 100. The pressure sensor is used for detecting the pressure of the refrigerant in the liquid storage tank 100. Thus, the pressure of the refrigerant in the liquid storage tank 100 can be monitored in real time through the pressure sensor.

The embodiment of the present disclosure further provides an air conditioner, which includes the heat exchanger 200 described in any of the above embodiments.

Alternatively, the heat exchanger 200 serves as an outdoor unit of an air conditioner.

In this embodiment, when the air conditioner operates in the cooling mode, i.e., the heat exchanger 200 serves as a condenser, the refrigerant flows into the accumulator 100 through the first inlet/outlet pipe 101, and flows out of the accumulator 100 through the second inlet/outlet pipe 102. Since a height difference exists between the first end of the first inlet/outlet pipe 101 and the first end of the second inlet/outlet pipe 102, the liquid storage amount of the liquid storage tank 100 corresponding to the height difference can store the refrigerant, thereby reducing the refrigerant flow rate. When the air conditioner operates in a heating mode, i.e., the heat exchanger 200 serves as an evaporator, the refrigerant flows into the reservoir tank 100 through the second inlet/outlet pipe 102 and flows out of the reservoir tank 100 through the first inlet/outlet pipe 101. At this time, the refrigerant in the receiver tank 100 is less, and most of the refrigerant is discharged through the first inlet/outlet pipe 101, thereby increasing the refrigerant flow rate of the refrigerant circulation circuit. Therefore, the air conditioner automatically adjusts the refrigerant flow of the refrigerant circulation loop through the liquid storage tank 100 in a refrigerating mode or a heating mode, and the energy efficiency of the air conditioner is effectively improved.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heat exchanger, comprising:

the heat exchange pipeline comprises a condensation section;

a liquid storage tank (100) provided with a moving part inside; the moving part divides the liquid storage tank (100) into a first chamber and a second chamber which are adjacent left and right, and the moving part can move left and right to adjust the liquid storage amount of the first chamber;

wherein the first chamber is provided with a first inlet and outlet pipe (101) and a second inlet and outlet pipe (102); the first end of the first inlet and outlet pipe (101) is communicated with the liquid storage tank (100), and the second end of the first inlet and outlet pipe is communicated with one part of the condensation section; the first end of the second inlet and outlet pipe (102) is communicated with the liquid storage tank (100), and the second end of the second inlet and outlet pipe is communicated with the other part of the condensation section;

and the distance from the first end of the first inlet and outlet pipe (101) to the bottom of the liquid storage tank (100) is less than the distance from the first end of the second inlet and outlet pipe (102) to the bottom of the liquid storage tank (100).

2. The heat exchanger of claim 1, wherein the moving portion comprises:

a partition (150) for dividing the interior of the fluid reservoir (100) into the first compartment and the second compartment;

and one end of the moving rod (160) is connected to the plate surface of the partition plate (150) positioned in the second chamber, and the moving rod (160) can move left and right to drive the partition plate (150) to move synchronously.

3. The heat exchanger of claim 2,

the clapboard (150) is vertical to the bottom surface of the liquid storage tank (100).

4. The heat exchanger according to claim 2 or 3, wherein the moving portion further comprises:

the driving device (170) is connected to the moving rod (160) and used for driving the moving rod (160) to move left and right.

5. The heat exchanger of claim 4, wherein an end of the travel bar (160) distal from the partition (150) extends out of the fluid reservoir tank (100); the drive device (170) comprises:

the motor is arranged outside the liquid storage tank (100), the driving end of the motor is connected to one end, extending out of the liquid storage tank (100), of the moving rod (160) through a transmission component, and the motor drives the moving rod (160) to move left and right when rotating.

6. The heat exchanger according to any one of claims 1 to 3,

the amount of liquid stored in the first compartment is inversely proportional to the operating frequency of the compressor.

7. An air conditioner characterized by comprising the heat exchanger according to any one of claims 1 to 6.

8. The air conditioner according to claim 7,

the heat exchanger (200) is used as an outdoor unit of the air conditioner.

9. The air conditioner according to claim 8,

when the air conditioner operates in a refrigeration mode, refrigerant flows into the liquid storage tank (100) from the first inlet and outlet pipe (101) and flows out of the liquid storage tank (100) from the second inlet and outlet pipe (102).

10. The air conditioner according to claim 8,

when the air conditioner operates in a heating mode, a refrigerant flows into the liquid storage tank (100) from the second inlet and outlet pipe (102) and flows out of the liquid storage tank (100) from the first inlet and outlet pipe (101).

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