CN220907959U

CN220907959U - Clothes dryer

Info

Publication number: CN220907959U
Application number: CN202322042608.8U
Authority: CN
Inventors: 毕建军; 高丽君; 丁兆波; 王增强
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-05-07
Anticipated expiration: 2033-07-31

Abstract

The utility model provides a clothes dryer. The clothes dryer comprises a box body and a door body, and the clothes drying cylinder is arranged in the box body; the circulating air duct is arranged in the inner cylinder, and both ends of the circulating air duct are communicated with the clothes drying cylinder; the heat pump system includes a compressor and a throttling element, further comprising: the first heat exchanger is arranged in the circulating air duct, and the second heat exchanger is arranged in the circulating air duct; the compressor, the throttling element, the first heat exchanger and the second heat exchanger are connected through pipelines; a refrigerant storage for storing a refrigerant; the first refrigerant pipeline is connected between the first heat exchanger and the compressor, and is provided with a separation connection point; the first flow line is connected between the separation junction and the first heat exchanger; the second flow pipeline is connected between the separation connecting point and the refrigerant storage; a first valve connected to the first flow line to open or close the first flow line; and a second valve connected to the second flow line to open or close the second flow line.

Description

Clothes dryer

Technical Field

The utility model relates to the technical field of household appliances, in particular to a clothes dryer.

Background

With the rapid development of clothes dryers, people put higher demands on energy efficiency of clothes dryers.

In the prior art, a clothes dryer includes a heat pump system including an evaporator, a condenser, a compressor, and a throttle element. The evaporator, the condenser, the compressor and the throttling element are connected through a refrigerant pipeline, when the heat pump system heats, the surface temperature of the condenser is higher, the air flow is changed into high-temperature air flow through the surface absorption heat of the condenser, the high-temperature air flow flows into the clothes drying cylinder to dry clothes, and is changed into high-temperature and high-humidity air flow, and then flows through the surface of the evaporator to cool and separate out condensed water, so that the air flow is kept in a dry state, and then flows through the surface of the condenser to be changed into hot air flow to flow into the clothes drying cylinder, and the circulation is realized.

In the working process of the heat pump system, the mass of the refrigerant involved in the working is fixed, and the mass of the refrigerant involved in the working, which is required to be the best energy efficiency when the full-load clothes and the half-load clothes are dried, is different, so that the heat pump clothes dryer cannot be in the best energy efficiency state when the full-load clothes and the half-load clothes are dried, and the energy efficiency requirement of people on the clothes dryer cannot be met.

Disclosure of utility model

The present utility model solves at least one of the technical problems in the related art to a certain extent.

To this end, the present application is directed to a clothes dryer.

The clothes dryer according to the present application includes: a case;

The door body is connected with the box body;

A clothes drying cylinder which is arranged in the box body;

the circulating air duct is arranged in the inner cylinder, and two ends of the circulating air duct are communicated with the clothes drying cylinder;

a heat pump system comprising a compressor and a throttling element, further comprising:

the first heat exchanger is arranged in the circulating air duct, and when the heat pump system operates in a heating mode, the first heat exchanger releases heat into the air flow flowing through the surface of the first heat exchanger so as to raise the temperature of the air flow;

The second heat exchanger is arranged in the circulating air duct, and absorbs heat of air flow flowing through the surface of the second heat exchanger when the heat pump system operates in a heating mode so as to reduce the temperature of the air flow and separate out condensed water;

The compressor, the throttling element, the first heat exchanger and the second heat exchanger are connected through pipelines;

A refrigerant storage for storing a refrigerant;

The first refrigerant pipeline is connected between the first heat exchanger and the compressor, and is provided with a separation connection point;

a first flow line connected between the separation junction and the first heat exchanger;

A second flow line connected between the partition connection point and the refrigerant reservoir;

A first valve connected to the first flow line to open or close the first flow line;

And a second valve connected to the second flow line to open or close the second flow line.

The clothes dryer according to the present application includes: a case;

The door body is connected with the box body;

A clothes drying cylinder which is arranged in the box body;

The two ends of the circulating air duct are communicated with the clothes drying cylinder;

A refrigerant storage for storing a refrigerant;

and one end of the second flow pipeline is connected with the refrigerant storage, and the other end of the second flow pipeline is connected with a pipeline connected with the exhaust port of the compressor, so that the refrigerant discharged by the compressor enters the refrigerant storage along the second flow pipeline.

In some embodiments of the present application, the circulating air duct includes a front air duct, a bottom air duct, and a rear air duct, the front air duct is connected to an end of the laundry dryer cylinder near the door, the rear air duct is connected to an end of the laundry dryer cylinder far from the door, and two ends of the bottom air duct are respectively connected to the front air duct and the rear air duct.

In some embodiments of the present application, the clothes dryer further comprises a water storage container and a drainage pump, wherein the water storage container is arranged on one side, close to the base, of the first heat exchanger, the water outlet container receives condensed water flowing down by the first heat exchanger, and the water storage container is connected with the drainage pump.

In some embodiments of the application, the circulating air duct is provided with an air inlet, the air inlet comprises an air inlet and an air outlet, and the clothes drying cylinder comprises an outlet and an inlet;

The air inlet is connected with the outlet so that air flow flowing out of the clothes drying cylinder flows into the circulating air duct from the air inlet;

the air outlet is connected with the inlet, so that air flow entering the clothes drying cylinder is blown out from the circulating air channel through the air outlet.

In some embodiments of the present application, the clothes dryer further includes a filter screen, the filter screen is disposed at the air inlet, and a piezoresistor is disposed between the filter screen and the air inlet.

In some embodiments of the present application, the clothes dryer further includes a controller, the first valve and the second valve are both electric valves, the first valve and the second valve are respectively connected to the controller, and the controller controls the first valve and the second valve to be opened or closed.

In some embodiments of the application the dryer further comprises a blower comprising an air inlet and an air outlet, the blower being disposed between the first heat exchanger and the air inlet.

In some embodiments of the application the dryer comprises:

The application has at least the following positive effects:

The utility model provides a clothes dryer. The clothes dryer comprises a box body and a door body, and the clothes drying cylinder is arranged in the box body; the circulating air duct is arranged in the inner cylinder, and both ends of the circulating air duct are communicated with the clothes drying cylinder; the heat pump system includes a compressor and a throttling element, further comprising: the first heat exchanger is arranged in the circulating air duct, and the second heat exchanger is arranged in the circulating air duct; the compressor, the throttling element, the first heat exchanger and the second heat exchanger are connected through pipelines; a refrigerant storage for storing a refrigerant; the first refrigerant pipeline is connected between the first heat exchanger and the compressor, and is provided with a separation connection point; the first flow line is connected between the separation junction and the first heat exchanger; the second flow pipeline is connected between the separation connecting point and the refrigerant storage; a first valve connected to the first flow line to open or close the first flow line; and the second valve is connected with the second flow pipeline to open or close the second flow pipeline, so that the workload of the dryer in full-load and half-load refrigerant is different, and the energy efficiency of the dryer is enhanced.

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 view of a dryer according to an embodiment of the present application;

FIG. 2 is a partial schematic view of a dryer according to an embodiment of the present application;

Fig. 3 is a partially exploded view of a dryer according to an embodiment of the present application;

fig. 4 is a schematic view of a dryer according to an embodiment of the present application;

fig. 5 is a schematic diagram of a heat pump system of a clothes dryer according to an embodiment of the present application;

fig. 6 is a schematic view of a peripheral frame of a washing machine according to an embodiment of the present application;

FIG. 7 is a schematic view showing the cooperation of a peripheral frame and a computer board mounting box of a washing machine according to an embodiment of the present application;

fig. 8 is a schematic view of a peripheral frame of a washing machine according to an embodiment of the present application;

fig. 9 is a schematic view of a computer board mounting box of a washing machine according to an embodiment of the present application;

Fig. 10 is a schematic view of a computer board mounting box of a washing machine according to an embodiment of the present application;

In the following figures: 100. a clothes dryer; 11. a case; 12. a door body; 13. a water storage tank; 14. a surrounding frame; 141. a screw mounting portion; 15. a base; 16. a filter screen; 161. a first connection end; 162. a first projection; 20. a clothes drying cylinder; 30. a blower; 31. a motor; 32. an impeller; 41. a first refrigerant line; 42. a first flow line; 43. a second flow line; 51. a first valve; 52. a second valve; 60. a controller; 61. a resistor; 71. a front air duct; 72. a bottom air duct; 73. a rear air duct; 80. a computer board mounting box; 81. a drain hole; 82. a first extension plate; 83. a second extension plate; 831. an extension surface; 84. a first sidewall; 85. a second sidewall; 86. a third sidewall; 87. a fourth sidewall; 90. a heat pump system; 91. a first heat exchanger; 92. a second heat exchanger; 93. a compressor; 94. refrigerant storage.

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.

In the description of the present utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

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 particular number of features being indicated. Thus, a feature defining "a first", "a second" or the like may include one or more such features explicitly or implicitly.

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, for example, fixedly connected, detachably connected or integrally connected; 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.

Referring to fig. 1 to 10, the dryer 100 may include: the cabinet 11, the laundry drum 20, the blower 30, the heater and the controller 60 (not shown in the drawing).

The dryer 100 may further include: the door body 12 is provided on the case 11, and the door body 12 faces the laundry dryer 20, and the laundry dryer 20 can take and put laundry therein by opening and closing the door body 12.

In operation of the dryer 100, the condenser heats the air to form a hot air flow having a relatively high temperature, which flows through the inside of the dryer drum 20, thereby drying the laundry in the dryer drum 20. The dried air flow has more water vapor content, flows along the air channel and then flows through the surface of the evaporator, the surface temperature of the evaporator is lower, the water vapor in the air flow contacts the surface of the evaporator with lower temperature to be condensed into water, and the humidity of the air flow is reduced. The condensed water flows into the water storage tank 13, and the drain pump provides power to drain the condensed water into the drain container, eventually draining the dryer 100.

In some embodiments, the clothes dryer 100 includes a heat pump system 90, in which the heater is a condenser, the surface temperature of the condenser is high, and the heat pump system 90 includes a compressor 93, a condenser, an expansion valve, and an evaporator, and a heating cycle is performed through the compressor 93, the condenser, the expansion valve, and the evaporator. The heating cycle comprises a compression process, a condensation process, an expansion process and an evaporation process, and heat is provided to the inside of the clothes drying cylinder 20 through the heat absorption and release processes of the refrigerant, so that the clothes in the clothes drying cylinder 20 are dried.

The compressor 93 compresses the refrigerant gas into a high-temperature and high-pressure state and discharges the compressed refrigerant gas, and the discharged refrigerant gas flows into the condenser. The condenser condenses the compressed high-temperature and high-pressure gaseous refrigerant into a liquid refrigerant, and heat is released to the surrounding environment through the condensation process.

The liquid refrigerant flowing out of the condenser enters an expansion valve, and the expansion valve expands the liquid refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid refrigerant. The low-pressure liquid refrigerant flowing out of the expansion valve enters the evaporator, absorbs heat when the liquid refrigerant flows through the evaporator, evaporates into a low-temperature low-pressure refrigerant gas, and the refrigerant gas in a low-temperature low-pressure state returns to the compressor 93. The evaporator can realize the refrigerating effect by utilizing the latent heat of vaporization of the refrigerant to exchange heat with the material to be cooled

Wherein, the case 11 is used to protect the electrical components inside the dryer 100, and to close the passage of the dryer 100 between the inside and the outside, thereby avoiding the damage of the electrical components. A laundry drum 20 is provided in the cabinet 11 for loading laundry to be dried. The box 11 is further formed with a circulation air duct 70, one end of the circulation air duct 70 is communicated with the inlet of the clothes drying cylinder 20, the other end of the circulation air duct is communicated with the outlet of the clothes drying cylinder 20, and a closed loop circulation path is formed between the circulation air duct 70 and the clothes drying cylinder 20. The blower 30 is disposed in the case 11, and the blower 30 is operable to form a circulating gas in a circulating path between the circulating duct 70 and the laundry dryer drum 20.

The circulation duct 70 includes a front duct 71 (side close to the door body 12), a bottom duct 72, and a rear duct 73 (side far from the door body 12).

The front air duct 71 is provided in the inner cylinder and connected to an end of the laundry dryer cylinder 20 near the door 12.

The rear air duct 73 is arranged in the inner cylinder and is connected with the end part of the clothes drying cylinder 20 far away from the door body 12, and the front air duct 71 and the rear air duct 73 are arranged separately.

The bottom air duct 72 is located in the space between the clothes drying cylinder 20 and the box 11, and two ends of the bottom air duct 72 are respectively communicated with the front air duct 71 and the rear air duct 73.

The dryer 100 further includes a filter screen provided at a tuyere, where the front air duct 71 or the rear air duct 73 is provided with a tuyere communicated with the drum 20.

The air inlet of the circulation air duct 70 includes an air inlet connected to the air inlet of the laundry dryer cylinder 20 and an air outlet connected to the outlet of the laundry dryer cylinder 20.

The filter screen is arranged at the air outlet or the air inlet of the circulating air duct 70. The present application is described with the air inlet of the circulation duct 70 as an embodiment, and the diagram of the filter screen at the air inlet of the circulation duct 70 is shown.

The filter screen includes a first connection end portion that mates with the tuyere, the first connection end portion being located at one side of the tuyere near the rotation shaft of the laundry dryer cylinder 20. The first connecting end part is of an annular structure matched with the shape of the air inlet, the maximum distance of the first connecting end part is not smaller than the maximum distance of the air inlet, and the first connecting end part is arranged above the air inlet and cannot enter the circulating air duct 70. The first connecting end portion plays a supporting role on the filter screen.

The resistor is arranged between the air inlet and the first connecting end part. The resistor is a piezoresistor and can convert the received pressure into an electric signal. The piezoresistor is connected with the controller 60, and the controller 60 receives the pressure signal of the piezoresistor and judges whether the pressure born by the piezoresistor is not less than a preset pressure value.

If the real-time pressure value of the piezoresistor is not less than the preset pressure value, the controller 60 reminds the user that the filter screen is in a dirty state and needs to be cleaned, the user can timely learn that the filter screen is in the dirty state and timely clean the filter screen to reduce the pollution degree of clothes in the clothes drying cylinder 20, the cleaned filter screen is ventilated more smoothly, and the fan 30 can realize circulation in the air flow recirculation air duct 70 after keeping normal operation, so that electric energy is saved.

If the real-time pressure value received by the piezoresistor is smaller than the preset pressure value, the controller 60 does not remind the user, and the filter screen is still in an incomplete dirty state at the moment, so that normal use can be continued, the controller 60 continues to receive the signal of the real-time pressure value of the piezoresistor, and the relation between the real-time pressure value of the piezoresistor and the preset pressure value is continuously judged.

In other embodiments, the first connecting end is located at any position of the filter screen, but the first connecting end is cooperatively connected with the front air duct 71/the rear air duct 73 to fix the positional relationship between the filter screen and the front air duct 71/the rear air duct 73, so that the filter screen will not all enter the air duct, and the filter screen can cover an air port, so that the air flow at the air port all needs to flow through the filter screen.

The resistor is fixedly connected with the front air duct 71 and/or the rear air duct 73, and at least one side surface of the resistor is in contact with the filter screen, and the filter screen is subjected to pressure of air in the air flow process. Because the resistor contacts with the filter screen, the filter screen can transmit the pressure received to the resistor, the resistor is a piezoresistor, and the controller 60 receives the real-time pressure value transmitted by the piezoresistor and judges whether the real-time pressure value is not less than a preset pressure value, if so, the user is reminded to clean the filter screen.

In the prior art, in the long-time use process of the clothes dryer 100, the filter screen filters more impurities, the filter screen is blocked, a user does not know whether the filter screen is in a blocked state, the filter screen cannot be cleaned in time, the filtering effect of the filter screen is deteriorated, and thus the cleanliness of the gas flowing in the clothes dryer cylinder 20 and the air duct is low, and the clothes are polluted.

According to the application, the piezoresistor is arranged between the air port and the first connecting end part, so that the piezoresistor can accurately sense the pressure of the air received by the first connecting end part, when the filter screen is in a blocking state, the pressure of the air received by the air flow flowing through the filter screen is larger, the first connecting end part transmits the pressure of the air received by the filter screen to the piezoresistor, the real-time pressure value of the piezoresistor is larger, the controller 60 judges whether the filter screen is dirty or not according to the relation between the real-time pressure value transmitted by the piezoresistor and the preset pressure value, and if the filter screen is dirty, a user is reminded of cleaning the filter screen in time so as to reduce the condition that the electric energy consumed by the fan 30 is increased due to the filter screen blockage, and reduce the probability of clothes pollution.

The controller 60 is a device that can generate an operation control signal according to the instruction operation code and the timing signal, and instruct the dryer 100 to execute a control instruction. By way of example, the controller 60 may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, N P), a digital signal processor (DIGITAL SIGNAL processing, DSP), a programmable logic device (prog rammable log icdevice, pld), a microprocessor, a microcontroller 60, or any combination thereof. The controller 60 may also be any other device having processing functions, such as a circuit, a device, or a software module, which is not limited in this regard by the embodiments of the present application.

After the user selects and initiates the drying program, the controller 60 may control the operation of the various electrical components to dry the laundry within the drum 20 to meet the user's needs.

In some embodiments of the present application, the resistor is a varistor, which is fixedly connected to the tuyere, so that the varistor cannot be blown by wind during use of the clothes dryer 100, and thus cannot be interposed between the first connection end and the tuyere.

At least one side of the varistor is in contact with the first connection end, and when the first connection end is subjected to gas pressure, the pressure of the gas can be transmitted to the varistor.

In some embodiments of the present application, the clothes dryer 100 includes a top plate and a base 15, and an extending direction of the cabinet 11 between the top plate and the base 15 is a height direction.

The case 11 includes a back plate, which is disposed opposite to the door 12, and the extending direction of the case 11 between the back plate and the door 12 is a longitudinal direction.

A plane extending in both the height direction and the length direction is defined as a first plane.

The projection of the first protruding portion on the first plane is in a shape of a trapezoid or a truncated cone or a cone with a sharper bottom, so that the inlet area of the filter screen is larger, airflow is easier to enter the filter screen and is blown out from the tip of the filter screen, and the tip is connected in the circulating air duct 70, so that the blown airflow flows in the circulating air duct 70 with more concentrated airflow, and the flowing efficiency of the airflow is higher.

In some embodiments of the present application, the dryer 100 includes a heater disposed within the front air duct 71 and/or the rear air duct 73 and/or the bottom air duct 72.

The heater is located in the circulation duct 70 and is capable of heating the circulation gas after the heater is started.

In some embodiments, the heater has a heating assembly of heating tubes or elements that convert electrical energy to thermal energy to raise the surface temperature of the air flow in the circulation duct 70 flowing through the heating coils.

In other embodiments, the heater is a condenser, and the dryer 100 includes a heat pump system 90, the condenser having a relatively high surface temperature capable of releasing heat into the airflow passing over the condenser surface.

In some embodiments, the heater includes a condenser disposed in the bottom tunnel 72 and a heating assembly, which may be disposed in the rear tunnel 73. Wherein the heater may be a heating assembly having a heating tube or heating element.

When the high-temperature circulating gas heated by the heater passes through the clothes drying cylinder 20, the water of the clothes to be dried in the clothes drying cylinder 20 evaporates into the circulating gas at high temperature to form high-temperature and high-humidity circulating gas, the high-temperature and high-humidity circulating gas passes through the front air duct 71 and the bottom air duct 72 to reach the condenser at the bottom of the clothes dryer 100, condensed water is separated out from the high-temperature and high-humidity circulating gas under the action of the condenser, the circulating gas enters the rear air duct 73 after the circulating gas is heated by the heater, and the circulating gas is converted into the high-temperature circulating gas again on the rear air duct 73, so that a circulating loop is completed.

In some embodiments of the present application, the front air duct 71, the rear air duct 73, and the bottom air duct 72 collectively form the circulation air duct 70.

The air port includes an air inlet and an air outlet, and a filter screen is disposed at the air inlet, and filters the air flow entering the circulation duct 70 when the air flow enters the circulation duct 70 from the air inlet.

When the air flow needs to enter the circulating air duct 70 from the air inlet, the air flow needs to flow through the filter screen at the circulating air duct 70, and then flows into the circulating air duct 70 after the air flow needs to flow through the filter screen, so that pollutants entering the circulating air duct 70 can be reduced, and the circulating air duct 70 is kept clean.

In some embodiments of the present application, the dryer 100 further includes a blower 30, the blower including an air inlet and an air outlet, the blower 30 being disposed at a position between the heater and the air inlet such that air flows circularly between the air inlet, the drum 20, and the air outlet.

The fan 30 may be a ventilator 30, a blower 30, a variable frequency fan 30, etc. The blower 30 may be disposed at an inlet of the drum 20 (i.e., an inlet side of the heater) as shown in the drawing so that hot air heated by heat generated from the air through the condenser is blown into the drum 20, and the air may directionally circulate in the circulation duct 70.

The blower 30 may include: the motor 31 and the impeller 32, the motor 31 can be electrically connected with the controller 60, the impeller 32 is connected with the rotating shaft of the motor 31, the impeller 32 is arranged in the rear air duct 73, and when the motor 31 is started, the impeller 32 rotates to blow air to the heater, so that the fluidity of circulating gas is improved.

The dryer 100 further includes: a water storage tank 13, the water storage tank 13 can be arranged in the bottom air duct 72 and below the condenser for receiving condensed water dropped by the condenser.

A water valve may be provided below the reservoir 13 for controlling the outflow of condensed water from the reservoir 13.

In the related art, the clothes dryer 100 includes a heat pump system 90, and the heat pump system 90 includes an evaporator, a condenser, a compressor 93, and a throttle element. The evaporator, the condenser, the compressor 93 and the throttling element are connected through a refrigerant pipeline, when the heat pump system 90 heats, the surface temperature of the condenser is higher, the air flow is changed into high-temperature air flow through the surface absorption heat of the condenser, the high-temperature air flow flows into the clothes drying cylinder 20 to dry clothes, and is changed into high-temperature and high-humidity air flow, and then flows through the surface of the evaporator to cool and separate out condensed water, so that the air flow is kept in a dry state, and then flows through the surface of the condenser to be changed into hot air flow to flow into the clothes drying cylinder 20, and the circulation is performed.

During operation of the heat pump system 90, the mass of the refrigerant involved in the operation is fixed, and the mass of the refrigerant involved in the operation, which is the best energy efficiency required when drying full laundry and half laundry, is different, which results in that the heat pump dryer 100 cannot be in the best energy efficiency state when drying full laundry and half laundry, and cannot meet the energy efficiency requirements of people for the dryer 100.

The present application provides a clothes dryer 100 capable of loading different cooling media according to different loads.

The clothes dryer 100 comprises a heat pump system 90, the heat pump system 90 comprises a compressor 93 and a throttling element, and further comprises a first heat exchanger 91 and a second heat exchanger 92, wherein the first heat exchanger 91 and the second heat exchanger 92 are arranged in the circulating air duct 70, when the heat pump system 90 operates in a heating mode, the first heat exchanger 91 releases heat into air flow flowing through the surface of the heat pump system to raise the temperature of the air flow, and at the moment, the refrigerant in the first heat exchanger 91 is subjected to a condensation process.

The second heat exchanger 92 is disposed in the circulation duct 70, and when the heat pump system 90 operates in the heating mode, the second heat exchanger 92 absorbs heat of the airflow flowing through the surface thereof, so as to reduce the temperature of the airflow and separate out condensed water, and at this time, the second heat exchanger 92 is disposed therein. The compressor 93, the throttling element, the first heat exchanger 91 and the second heat exchanger 92 are connected by piping.

The dryer 100 further includes a hollow refrigerant storage inside for storing a refrigerant.

The dryer 100 further includes a first refrigerant line 41, the first refrigerant line 41 being connected between the first heat exchanger 91 and the compressor 93, the first refrigerant line 41 having a separate connection point.

The first flow line 42 is connected between the partition connection point and the first heat exchanger 91, and the first flow line 42 is a part of the first refrigerant line 41. When the heat pump system 90 operates in the cooling mode, the first heat exchanger 91 is a condenser, and the high-temperature and high-pressure refrigerant discharged from the compressor 93 flows into the first heat exchanger 91 to be condensed.

The second flow line 43 is connected between the partition connection point and the refrigerant reservoir, and is capable of delivering refrigerant to the partition connection point, or receiving and storing refrigerant discharged from the compressor 93.

A first valve 51 is connected to the first flow line 42 to open or close the first flow line 42.

A second valve 52 is connected to the second flow line 43 to open or close the second flow line 43.

The controller 60 is connected to the first valve 51 and the second valve 52, and is capable of controlling the opening or closing of the first valve 51 and the second valve 52.

The total mass of all refrigerants in the clothes dryer 100 is m1, and m1 is the workload of the refrigerants required by the clothes dryer 100 when the clothes dryer 100 is in a full load state and the operation efficiency is in an optimal state.

When the clothes dryer 100 of the present application is in the half load state and the operation efficiency is in the optimal state, the workload of the refrigerant required by the clothes dryer 100 is m2. Note that m2 and m1 are experimental values.

When the dryer 100 is in the half-load state, the controller 60 sends a signal to drive the first valve 51 to be closed and simultaneously drives the second valve 52 to be opened, so that the refrigerant discharged from the compressor 93 cannot pass through the first flow line 42 to reach the first heat exchanger 91, and can only flow from the second flow line 43 to the refrigerant reservoir, so that the working capacity of the refrigerant is gradually reduced from m 1 to m2, and the time of the working capacity-reduced process position of the refrigerant is t, during which the compressor 93 continuously operates, so that the refrigerant is discharged into the second flow line 43 by the compressor 93.

After the operation time of the compressor 93, the closing time of the first valve 51 and the opening time of the second valve 52 are not less than the preset time t, the controller 60 sends a signal to drive the first valve 51 to open and drive the second valve 52 to close, so that the workload of the refrigerant is maintained at m2. Since m2 is the amount of work of the refrigerant with the optimal efficiency in the half load state of the dryer 100, the efficiency of the heat pump system 90 can be maintained at a high level.

When the dryer 100 is in the full load state, the controller 60 sends a signal to drive the first valve 51 to open and the second valve 52 to close, so that the refrigerant discharged from the compressor 93 cannot enter the refrigerant reservoir, and the amount of refrigerant operating in the heat pump system 90 is m1. Since m1 is the refrigerant workload in the higher efficiency state of the operation of the heat pump system 90, the heat pump system 90 can also be operated at higher efficiency at this time.

Compared with the prior art, the heat pump system 90 of the application is added with a refrigerant storage tank, and the refrigerant storage tank is used for containing redundant refrigerant in a half-load state. When the dryer 100 is in the full load state, the required refrigerant has a working capacity of m1, the controller 60 drives the first valve 51 to open and drives the second valve 52 to open, so that the refrigerant discharged from the compressor 93 enters the first heat exchanger 91 and cannot enter the refrigerant accumulator. When the clothes dryer 100 is in the half-load state, the required workload of the refrigerant is m2, the controller 60 drives the first valve 51 to be closed, and drives the second valve 52 to be opened, so that the refrigerant discharged by the compressor 93 enters the refrigerant storage through the second flow pipeline 43, and the workload of the refrigerant in the heat pump system 90 is reduced from m1 to m2, so that the working efficiency of the clothes dryer 100 in the half-load state is enhanced, and the higher working efficiency of the clothes dryer 100 in the full-load state and the half-load state is realized, so that energy is saved.

The dryer 100 may further include: the display may be a liquid crystal display, an organic light-emitting diode (OLED) display. The particular type, size, resolution, etc. of the display are not limited, and those skilled in the art will appreciate that the display may be modified in performance and configuration as desired.

The display may be used to display a control panel of the dryer 100 or operation information of the dryer 100. The dryer 100 displays operation information of the operation time of the dryer 100, a drying program being operated, etc., through a display.

The dryer 100 may further include: and the voice prompt device is used for playing voice prompt information according to the program. The content of the voice prompt information may be preset by the manufacturer of the clothes dryer 100, or may be set by the user through a man-machine interaction device. For example, when the controller 60 obtains that the laundry has satisfied the drying end condition (when the dryer 100 is operated to the stop time), the controller 60 may control the voice prompt device to play a prompt such as "drying complete".

The dryer 100 may further include: and a man-machine interaction means for enabling interaction between a user and the dryer 100. The human-machine interaction device may comprise one or more of physical keys or a touch-sensitive display panel. For example, a user may set a drying program that the dryer 100 needs to operate through the human-computer interaction device.

The dryer 100 may further include: a communication device, which is a component for communicating with an external device or server according to various communication protocol types. For example: the communication device may include at least one of a wireless communication technology (Wi-Fi) module, a bluetooth module, a wired ethernet module, a near field wireless communication technology (near fieldcommunication, NFC) module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The communication means may be used for communication with other devices or communication networks (e.g. ethernet, radio access network (radio access network, RAN), wireless local area network (wireless local area networks, WLAN), etc.).

The controller 60 may communicate with terminal devices used by the user through a communication means. The user uses a mobile phone as the terminal device, and the controller 60 receives the clothes drying program selected by the user on the mobile phone through the communication device, so as to control each electric appliance element of the clothes dryer 100 to start executing the clothes drying program.

The dryer 100 may further include: the power supply supplies power input from an external power source as the power supply support of the dryer 100 under the control of the controller 60.

The embodiment of the application also provides a control method of the clothes dryer 100, which comprises the following steps:

And S, the controller 60 controls the fan 30 to start.

When the clothes drying program of the clothes dryer 100 is started, the fan 30 is controlled to be started, and the fan 30 runs to the end of the clothes drying program. In one possible implementation, the start-up of the dryer 100 program may be triggered by the user, i.e., the user controls the dryer 100 program to start up. The user can control the program start of the dryer 100 by operating the display panel of the touch dryer 100. The user may also establish a communication connection with the dryer 100 through the mobile device to control the start of the dryer 100 program on the mobile device, which is not particularly limited by the present application.

S, the controller 60 acquires the ambient temperature and the temperature of the circulating gas.

Wherein the controller 60 is connected to a detector, which can transmit the detected ambient temperature and the temperature signal of the circulating gas to the controller in real time, and the controller 60 can receive the temperature signal.

And S, controlling the heater to start by the controller 60.

After the controller 60 acquires the ambient temperature and the temperature of the circulating gas, it is determined whether to control the heater to be started or not based on the ambient temperature and the temperature of the circulating gas.

The clothes dryer 100 of the present application may be a laundry machine having only a laundry drying function, or having both a laundry drying function and a laundry washing function, and the above is within the scope of the present application.

According to the washing machine provided by the application, the washing machine comprises a box body 11 and a door body 12, the washing machine is a pulsator washing machine, a surrounding frame 14 is arranged at the top of the box body 11, the surrounding frame 14 is an annular installation frame, a taking and placing opening is formed in the top of the surrounding frame 14, the door body 12 is connected to the taking and placing opening of the surrounding frame 14, and the door body 12 is opened and closed so that the taking and placing opening is opened or closed.

The enclosure frame 14 has a first installation space inside, and the computer board installation box 80 is installed in the first installation space, and the computer board installation box 80 is detachably connected with the enclosure frame 14. Typically, the enclosure 14 is provided with keys that cooperate with a computer board, and the computer board is connected to the keys in a cooperating manner, so that a user presses the keys to input commands to the computer board.

The washing machine further comprises a base 15 connected to the top of the box 11, wherein the position of the surrounding frame 14 is defined as the top of the washing machine, namely the upper side, and the position of the base 15 is defined as the bottom of the washing machine, namely the lower side. The extending direction of the case 11 between the surrounding frame 14 and the base 15 is the height direction of the washing machine.

The washing machine also comprises a washing barrel component, the washing barrel component comprises an outer barrel and an inner barrel, washing water is contained in the washing barrel component, and the washing water splashes outwards along with vibration and rotation of the washing barrel component. Part of the washing water splashes toward the direction in which the computer board installation box 80 is located, and enters the computer board installation box 80.

The computer board is disposed within the computer board mounting box 80.

The computer board mounting box 80 comprises a mounting box bottom wall and a mounting box side wall, wherein the mounting box side wall is connected to the mounting box side wall at the peripheral edge of the bottom wall, and at least one drain hole 81 is formed in the mounting box side wall. The computer board is arranged on one side of the drain hole 81 away from the base 15.

When the washing machine is placed on the ground, the height of the highest point of the drain hole 81 is H1, and the height of the lowest point of the computer board is H2, wherein H1 is equal to or less than H2.

The computer board mounting box 80 includes a bottom wall, a first side wall 84, a second side wall 85, a third side wall 86, and a fourth side wall 87, the first side wall 84 extending along the height direction of the case 11.

The drain hole 81 is provided in the first side wall 84, and the drain hole 81 also extends in the height direction of the casing 11.

When the water level in the computer board mounting box 80 reaches the height of the drain hole 81, accumulated water flows out from the drain hole 81, and the water level of the accumulated water cannot rise to the upper part of the drain hole 81, so that the accumulated water cannot be in contact with the computer board, and normal use of the computer board can be ensured.

In the prior art, if the accumulated water in the computer board mounting box 80 is to be cleaned, the computer board mounting box 80 needs to be removed and toppled over again, the operation is complex, and errors are easy to occur when the computer board mounting box 80 is mounted again, so that the mounting precision of the keys and the computer board mounting box 80 is insufficient, and the situation that the commands cannot be input on the computer board by pressing the keys is caused.

Compared with the prior art, the side wall of the computer board mounting box 80 is provided with the drain hole 81, the drain hole 81 is closer to the base 15 than the computer board, and the drain hole 81 is not arranged on the bottom wall of the computer board mounting box 80 but arranged on the side wall extending along the height direction, so that the drain hole 81 avoids the splashing direction of water in the washing barrel, and accumulated water splashed into the computer board mounting box 80 is reduced. The drain hole 81 is located in the underside of the computer board, when the computer board mounting box 80 starts to accumulate water, the water level gradually rises, when the water level rises to the height of the drain hole 81, water flows out of the drain hole 81 and cannot continuously rise to the computer board, so that the probability of contact between the computer board and the water is reduced, and the computer board can stably run.

In some embodiments of the present application, the computer board mounting box 80 further includes at least one first extension board 82.

The first extension board 82 is mounted on a side wall of the computer board mounting box 80 and extends towards a direction away from the computer board mounting box 80, and the enclosure frame 14 is formed with a first mounting hole, and the position and the size of the first mounting hole are matched with those of the first extension board 82, so that the first extension board 82 is matched and connected with the first mounting hole, and the computer board mounting box 80 is fixedly connected with the enclosure frame 14.

It should be noted that, at least one first extension board 82 is disposed on a side wall of the two opposite computer board mounting boxes 80, and the computer board mounting boxes 80 are balanced in stress.

In some embodiments of the present application, the first extension plate 82 is connected to the drain hole 81, and at least one side surface of the first extension plate 82 is connected to a top sidewall of the drain hole 81, and the top sidewall of the drain hole 81 is a sidewall of the drain hole 81 away from the base 15.

The drain hole 81 is irregularly shaped or regularly shaped, and the first extension plate 82 is connected to the drain hole 81 such that the drain hole 81 can buffer stress when the first extension plate 82 receives a distorted stress.

In some embodiments of the present application, the computer board mounting box 80 further includes at least one second extension board 83, the second extension board 83 is connected to a side wall of the computer board mounting box 80, the second extension board 83 includes at least one extension surface 831 extending along the same direction as the bottom wall of the computer board mounting box, and the extension surface 831 is provided with a screw hole.

The surrounding frame 14 is formed with a first screw mounting portion 141, the screw mounting portion 141 is provided with a screw hole, and the screw mounting portion 141 is matched with the extension surface 831 so that the screw is simultaneously penetrated on the screw mounting portion 141 and the extension surface 831.

The screw mounting portion 141 has a cylindrical structure, the interior of the cylindrical screw mounting portion 141 is hollow, and screws are inserted into the interior of the screw mounting portion 141 through screw holes on the second extension plate 83, so that the computer board mounting box 80 is fixedly connected with the enclosure frame 14.

In some embodiments of the present application, at least one drain hole 81 is formed on two opposite sidewalls of the computer board mounting box 80, so that the number of drain holes 81 is large, water can be rapidly drained, and good ventilation effect is achieved.

In some embodiments of the present application, at least two drain holes 81 are provided on a single side wall of the computer board mounting box 80, the two drain holes 81 are respectively connected to two first extension boards 82 correspondingly, and at least one second extension board 83 is provided between the two first extension boards 82.

Because the two first extension plates 82 and the first mounting holes are detachably connected, the connection has certain instability as long as the first extension plates 82 are clamped in the first mounting holes. The second extension plate 83 is connected with the screw mounting portion 141 by a screw, so that the connection is stable. Therefore, during installation, the first extension board 82 is connected with the first installation hole to realize the installation and positioning of the computer board installation box 80, and then the screw is connected with the second extension board 83 and the screw installation part 141 to strengthen the connection between the computer board installation box 80 and the enclosure frame 14.

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. A clothes dryer, comprising:

A case;

The door body is connected with the box body;

A clothes drying cylinder which is arranged in the box body;

A refrigerant storage for storing a refrigerant;

2. The clothes dryer of claim 1, wherein the circulating air duct comprises a front air duct, a bottom air duct and a rear air duct, the front air duct is connected with an end of the clothes drying cylinder close to the door body, the rear air duct is connected with an end of the clothes drying cylinder far away from the door body, and two ends of the bottom air duct are respectively communicated with the front air duct and the rear air duct.

3. The clothes dryer according to claim 1 or 2, further comprising a water storage container and a drain pump, wherein the water storage container is provided on a side of the first heat exchanger close to the base, the water storage container receives condensed water flowing down by the first heat exchanger, and the water storage container is connected with the drain pump.

4. Laundry dryer according to claim 1 or 2, characterized in that the circulation duct is provided with a tuyere comprising an air inlet and an air outlet, the laundry dryer drum comprising an outlet and an inlet;

5. The clothes dryer of claim 4 further comprising a screen disposed at the air inlet, a piezo-resistor being disposed between the screen and the air inlet.

6. The clothes dryer of claim 1 further comprising a controller, wherein the first valve and the second valve are each an electrically operated valve, wherein the first valve and the second valve are each connected to the controller, and wherein the controller controls the first valve and the second valve to open or close.

7. The clothes dryer of claim 1 or 6, further comprising a fan, wherein the circulation duct is provided with a tuyere, wherein the tuyere comprises an air inlet and an air outlet, and wherein the fan is provided between the first heat exchanger and the air inlet.

8. The clothes dryer of claim 1, wherein the clothes dryer includes:

9. The clothes dryer of claim 8 further comprising a controller, wherein the first valve and the second valve are each electrically operated valves, wherein the first valve and the second valve are each connected to the controller, and wherein the controller controls the first valve and the second valve to open or close.

10. A clothes dryer, comprising:

A case;

The door body is connected with the box body;

A clothes drying cylinder which is arranged in the box body;

A refrigerant storage for storing a refrigerant;