WO2024007763A1

WO2024007763A1 - Refrigeration equipment and control method thereof

Info

Publication number: WO2024007763A1
Application number: PCT/CN2023/096526
Authority: WO
Inventors: 唐松志; 刘庆林; 张守江
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2022-07-04
Filing date: 2023-05-26
Publication date: 2024-01-11
Also published as: CN117387261A

Abstract

Refrigeration equipment and a control method thereof. The refrigeration equipment comprises a casing body, which has a defrosting chamber and a compressor compartment chamber (1). The refrigeration equipment further comprises an evaporation pan (6) arranged in the compressor compartment chamber (1), a drain pipe (5) communicated with the defrosting chamber and the compressor compartment chamber (1), and a moisture evaporation device (8) arranged in the evaporation pan (6). The moisture evaporation device (8) is provided with a water inlet structure into which a water outlet end of the drain pipe (5) can extend. On the basis of the structure of the refrigeration equipment, water from frost in the drain pipe (5) is discharged into the evaporation pan (6) by means of the moisture evaporation device (8). In the process of water flowing through the moisture evaporation device (8), the evaporation area of water is increased, thus the evaporation speed of water is increased, and the hidden danger of overflowing to the outside of the evaporation pan (6) due to the fact that the evaporation speed of water in the evaporation pan (6) is too low is avoided.

Description

Refrigeration equipment and control method thereof

Technical field

The present invention relates to the field of refrigeration technology, and in particular to a refrigeration equipment and a control method thereof.

Background technique

The defrost water generated during defrost of the existing air-cooled refrigeration equipment is discharged along the drainage pipe 5' to the evaporation dish 6' of the compressor chamber 1' and evaporates. As shown in Figure 1, in order to increase the evaporation speed, avoid When the water in the water receiving tray accumulates until the box is full, it overflows. A heating pipe 9′ is provided in the water receiving tray, or the evaporation rate of the water in the water receiving tray is increased by using the heat of the compressor 2′ and the condenser 3′. However, during defrost, the condensing fan 4′ does not work, and a large amount of defrost water accumulates in the evaporator. Especially in some low-temperature and high-humidity environments, the startup time of the compressor and condensing fan is short, and the heat and air flow are insufficient. The evaporation effect is not ideal.

In view of this, a new refrigeration equipment and its control method are needed to solve the above problems.

Contents of the invention

The present invention provides a refrigeration equipment and a method thereof to solve one of the above problems.

In order to achieve the above objects, the technical solutions provided by the present invention are as follows:

A kind of refrigeration equipment, including a box body, the box body has a defrost chamber and a compressor chamber. The refrigeration equipment also includes an evaporation dish located in the compressor chamber, connecting the defrost chamber and the compressor chamber. The drainage pipe, the refrigeration equipment also includes a moisture evaporation device located in the evaporation dish, and the moisture evaporation device is provided with a water inlet structure for the water outlet end of the drainage pipe to extend into.

Further, the end edge of the moisture evaporation device extends to the inner wall of the press chamber, and the water inlet structure is located in the middle and upper part of the moisture evaporation device.

Further, the water inlet structure is located at the upper end of the water evaporation device, and the drainage pipe includes a first section connected to the defrost chamber and a second section connected to the first section, and the second section is embedded in the In the water evaporation device.

Further, the second section is bent and extended from the first section with its water outlet end facing upward, and the water outlet end is higher than the lowest point of the second section.

Further, the water evaporation device includes a water-absorbing member and a bracket for fixing the water-absorbing member, the second section is embedded in the water-absorbing member, and the water outlet end is not lower than the top of the water-absorbing member.

Further, the evaporation dish is provided with a water level sensor, and the water level sensor is located at the middle and upper part of the side wall of the evaporation dish.

Further, a heating tube is provided in the evaporation dish.

Further, the refrigeration equipment also includes an evaporator and a condensing fan spaced apart in the compressor chamber, the evaporator is located between the condensing fan and the evaporation dish, and the moisture evaporation device is close to the evaporator. set up;

or,

The evaporation dish is located between the evaporator and the condensing fan, and the moisture evaporation device is located close to the condensing fan.

The present invention also provides a control method for refrigeration equipment, wherein a condensing fan is further provided in the compressor chamber, and the condensing fan and the moisture evaporation device are arranged at intervals. The control method includes:

The refrigeration equipment is turned on,

The water level in the evaporating dish is obtained in real time. If the water level in the evaporating dish reaches the preset water level, the condensing fan is controlled to work.

Further, the control method also includes: if the water level in the evaporating dish does not reach the preset water level;

Continue to determine whether the refrigeration equipment is executing the defrost procedure. If so, control the condensing fan to work; if not, continue to determine whether the compressor is on. If so, control the condensing fan to continue to work. If not, continue to obtain the water level in the evaporator in real time. high.

Compared with the prior art, the beneficial effect of the present invention is that: in the refrigeration equipment of the present invention, by connecting the drainage pipe and the moisture evaporation device, the defrost water in the drainage pipe is discharged into the evaporation dish through the moisture evaporation device, and the moisture flows through During the process of the water evaporation device, the evaporation area of water is also increased, thereby increasing the evaporation rate of water, and avoiding the hidden danger of overflowing to the outside of the evaporation dish caused by too slow evaporation of water in the evaporation dish.

Description of the drawings

Figure 1 is a schematic diagram of the arrangement of various components in the compressor chamber of existing refrigeration equipment.

Fig. 2 is a schematic diagram of the arrangement of various components in the compressor chamber in one embodiment of the refrigeration equipment of the present invention.

Figure 3 is a schematic diagram of the arrangement of various components in the compressor compartment of another embodiment of the refrigeration equipment of the present invention.

Figure 4 is a schematic side structural view of the press chamber in the embodiment of Figure 2.

Figure 5 is a flow chart of the control method of the refrigeration equipment of the present invention.

Among them, 1-press chamber, 2-compressor, 3-condenser, 4-condensing fan, 5-drainage pipe, 51-first section, 52-second section, 6-evaporation dish, 8-moisture evaporation Device, 81-Absorbent parts, 82- Bracket, 9-heating tube, 10-water level sensor.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present invention.

It should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the auxiliary drawings, and is only for the convenience of simplifying the description of the present invention, rather than indicating or implying the device to which it refers. It must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of the invention. Specifically, in the present invention, the user's operating surface is referred to as the front, the direction toward the ground is referred to as downward, and conversely, the direction away from the ground is referred to as upward. Other descriptions indicating the orientation are based on "up" and "down". benchmark defined.

In the various illustrations of the present invention, certain dimensions of structures or portions are exaggerated relative to other structural portions for ease of illustration and, therefore, are only used to illustrate the basic structure of the subject matter of the present invention.

A kind of refrigeration equipment, as shown in Figures 2 to 4, the refrigeration equipment includes a box, the box has a defrost chamber and a compressor chamber 1, the refrigeration equipment also includes a compressor chamber 1 The evaporation dish 6 inside, the drainage pipe 5 connecting the defrost chamber and the press chamber 1, the drainage pipe 55 discharges the defrost water in the defrost chamber or the defrost water when the evaporator defrosts to the evaporation dish Within 6, the defrost water is quickly evaporated using the higher temperature environment in the press chamber 11.

The refrigeration equipment also includes a water evaporation device 8 located in the evaporation dish 6. The water evaporation device 8 is provided with a water inlet structure into which the water outlet end of the drainage pipe 5 extends.

The refrigeration equipment of the present invention directly transmits the defrost water in the drainage pipe 5 to the evaporation dish 6 through the water inlet structure on the moisture evaporation device 8. While the moisture is transmitted in the moisture evaporation device 8, part of it is also evaporated, and That is, the evaporation area is increased during the transmission of water to the evaporation dish 6 in the five drainage pipes, thereby increasing the evaporation speed of the water and preventing the water from overflowing to the outside of the evaporation dish 6 .

Further, the end edge of the moisture evaporation device 8 extends to the inner wall of the press chamber 1, the upper end of the moisture evaporation device 8 extends to the top wall of the press chamber 1, and the lower end of the moisture evaporation device 8 extends to The bottom wall of the press chamber 1, the front and rear sections of the water seal evaporation device extend to the front and rear walls of the press chamber 1, that is, the water evaporation device 8 divides the press chamber 1 into two parts, so that the water evaporation device 8. The expanded area is as large as possible to maximize the evaporation area and increase the rate of water evaporation.

Furthermore, the water inlet structure is located in the middle and upper part of the moisture evaporation device 8, so that the water in the drainage pipe 5 from the upper part to the lower part of the moisture evaporation device 8 is used to absorb and transmit moisture, without wasting the area in the press chamber. .

As a preferred embodiment of the present invention, the water inlet structure is located at the upper end of the water evaporation device 8, that is, the drainage pipe 5 has already entered the water evaporation device 8 when entering the press chamber 1, so that the water evaporates. Device 8 absorbs and transports moisture adequately.

In this embodiment, the drainage pipe 5 includes a first section 51 connected to the defrost chamber, and a second section 52 connected to the first section 51. The second section 52 is embedded in the water evaporation device 8, so as to The defrost water in the defrost chamber is directly discharged into the moisture evaporation device 8 through the drainage pipe 5 .

Preferably, as shown in Figure 4, the second section 52 is bent and extended from the first section 51 with its water outlet end facing upward, and the water outlet end is higher than the lowest point of the second section 52, so that the defrosting Water collects at the bend of the second section 52, and the sealing of the water in the drainage pipe 5 is used to prevent air from flowing between the defrost chamber and the press chamber 1. On the one hand, it can prevent the cold air in the defrost chamber from passing through. The drain pipe 5 enters the compressor chamber 1, causing cold air to leak. On the other hand, it can prevent the hot air in the compressor chamber 1 from entering the defrost chamber through the drain pipe 5, thus preventing the temperature in the defrost chamber from being unstable. .

In this embodiment, as shown in FIG. 3 , the water outlet end of the water outlet pipe is not lower than the top of the water absorbing member 81 , so that all water will pass through the water absorbing member 81 and then enter the evaporation dish 6 .

Further, the moisture evaporation device 8 includes a water-absorbing member 81 and a bracket 82 for fixing the water-absorbing member 81. The bracket 82 is used to vertically position the water-absorbing member 81 on the top wall and bottom of the press chamber 1. on the wall. The bracket 82 includes a pair of support plates located on both sides of the water-absorbent member 81 , and the water-absorbent member 81 is limited between the pair of support plates.

It can be understood that when the drainage pipe 5 is located at the upper end of the moisture evaporation device 8 , the second section 52 is directly embedded in the water absorbing member 81 from the upper end of the moisture evaporation device 8 through the water inlet structure. When the drainage pipe 5 is located in the middle and upper part of the water evaporation device 8, the water inlet structure is a through hole for the first section 51 to penetrate one of the support plates. The first section 51 is fixed on the through hole, and the second section 51 is fixed on the through hole. The segment 52 passes through the through hole and is embedded in the water-absorbing member 81 .

Furthermore, the evaporation dish 6 is provided with a water level sensor 10 , and the water level sensor 10 is located in the middle and upper part of the side wall of the evaporation dish 6 . In this embodiment, the refrigeration equipment also includes a control unit communicatively connected to the water level sensor 10 unit, the water level sensor 10 detects the water level height in the evaporation dish 6 in real time and transmits the relevant information of the water level height to the control unit.

Preferably, a lower water level sensor 10 is also provided in the evaporation dish 6. The lower water level sensor 10 is located on the bottom wall of the evaporation dish 6 and is mainly used to monitor whether there is defrost water in the evaporation dish 6. The control unit determines whether defrost water begins to enter the evaporation dish 6. The water level height information of the sensor 10 is used to make predictions, and works together with the water level sensor 10 to play a dual monitoring role.

Furthermore, the evaporation dishes 6 are equipped with heating tubes 9 for heating the defrost water and increasing the evaporation rate of the defrost water. In some embodiments, the heating tube 9 is connected to the condensation tube of the condenser 3 or is a part of the condensation tube, and the heat of the condenser 3 is used to increase the temperature of the defrost water in the evaporation dish 6 to increase the evaporation rate. Purpose.

The refrigeration equipment also includes a compressor 2, a condenser 3 and a condensing fan 4 spaced apart in the compressor chamber 1. The condensing fan 4 is communicated with the control unit. When the compressor 2 is working for refrigeration or needs to be accelerated, When the defrost water in the evaporator dish 6 is evaporated, the condensation fan 4 is controlled to be turned on, and the flow of air above the evaporator dish 6 is increased to increase the speed of water evaporation.

As a preferred embodiment of the present invention, as shown in Figure 2, the positions of the compressor 2, condenser 3, condensing fan 4, and evaporating dish 6 are arranged in sequence along the transverse direction: compressor 2, condensing fan 4, condensing fan 4, and condensing fan 4. 3. Evaporation dish 6, that is, the evaporation dish 6 is located on the side of the evaporator away from the fan, and the moisture evaporation device 8 is arranged close to the evaporator. Under the action of the condensing fan 4, the gas enters from the side of the compressor chamber 1 close to the evaporation dish 6 and flows out from the side close to the compressor 2. The air passes through the moisture evaporation device 8 and takes away the moisture. At the same time, it passes through the condensing fan. The function of 4 increases the air flow speed above the evaporator 6 to achieve the purpose of rapid evaporation of defrost water.

As a preferred embodiment of the present invention, as shown in Figure 3, the positions of the compressor 2, condenser 3, condensing fan 4, and evaporating dish 6 are arranged in order along the transverse direction: compressor 2, condensing fan 4, The evaporating dish 6 and the condenser 3, that is, the evaporating dish 6 is located between the condensing fan 4 and the condenser 3. The moisture evaporation device 8 is placed close to the condensing fan 4. Under the action of the condensing fan 4, The gas enters from the side of the compressor chamber 1 close to the condenser 3 and flows out from the side close to the compressor 2. The air passes through the condenser 3, evaporation dish 6, and moisture evaporation device 8. The air passes through the condenser 3 once. Heat exchange causes the air to heat up. The hot air passes through the evaporator 6 and the water evaporation device 8, and undergoes another heat exchange with the defrost water. While increasing the flow speed of the air, it also increases the temperature of the defrost water, further improving rapid evaporation. The purpose of defrost water.

The present invention also provides a control method for the above-mentioned refrigeration equipment. As shown in FIG. 5 , the control method of the present invention increases the evaporation rate of water in the evaporation dish 6 and the water evaporation device 8 by accelerating the air flow. Specifically, the control method includes: starting the refrigeration equipment, repeating the working cycle of compressor 2 and stopping compressor 2, and executing the defrost program when the evaporator needs to be defrosted. The water level sensor 10 acquires the water level in the evaporating dish 6 in real time, and determines whether the water level in the evaporating dish 6 reaches the preset water level. If so, the condensing fan 4 is controlled to work. The control of the condensing fan 4 includes: controlling the condensing fan 4 to continue working. Or control the condensation fan 4 to start working. As long as the water level sensor 10 detects that the water level in the evaporation dish 6 reaches the preset water level, the condensation fan 4 will work. The fan increases the flow of air to increase the moisture in the evaporation dish 6 and the evaporation device 8. According to the evaporation rate of water, if the condensing fan 4 is working, it will continue to work. If the condensing fan 4 is in a stopped state, the control unit controls the condensing fan 4 to start working.

Further, if the water level in the evaporating dish 6 does not reach the preset water level; then continue to determine whether the refrigeration equipment is executing the defrost program. If so, control the condensing fan 4 to work; if the refrigeration equipment is executing the defrost program, it will A large amount of defrost water is about to enter the evaporator 6 , at this time, the control unit controls the operation of the condensing fan 4 to increase the speed of water evaporation by increasing the air flow to evaporate the water seal in the evaporation dish 6 in advance to prevent the water in the evaporation dish 6 from overflowing the evaporation dish 6 That is, this operation can predict the amount of water in the evaporator 6 in advance based on whether the refrigeration equipment is defrosting, so as to avoid the situation where a large amount of defrost water enters the evaporator 6 and no measures are taken.

If the refrigeration equipment does not execute the defrost program, it will continue to determine whether the compressor 2 is turned on. If so, the condensing fan 4 will be controlled to continue working. If not, a large amount of defrost water will not enter the evaporator 6, and the program will continue to be executed. While running the program, continue to obtain the water level height in the evaporating dish 6 in real time.

To sum up, the refrigeration equipment of the present invention connects the drainage pipe 5 and the water evaporation device 8. The defrost water in the drainage pipe 5 is discharged into the evaporation dish 6 through the water evaporation device 8, and the water flows through the water evaporation device 8. During the process, the evaporation area of water is also increased, thereby increasing the evaporation speed of water, avoiding the hidden danger of overflowing outside the evaporation dish 6 due to too slow evaporation speed of water in the evaporation dish 6, and improving the user experience.

It should be understood that although this specification is described in terms of embodiments, not each embodiment only contains an independent technical solution. This description of the specification is only for the sake of clarity. Persons skilled in the art should treat the specification as a whole and understand each individual solution. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes that do not depart from the technical spirit of the present invention are All should be included in the protection scope of the present invention.

Claims

A kind of refrigeration equipment, including a box body, the box body has a defrost chamber and a compressor chamber. The refrigeration equipment also includes an evaporation dish located in the compressor chamber, connecting the defrost chamber and the compressor chamber. The drainage pipe is characterized in that it also includes a moisture evaporation device arranged in the evaporation dish, and the moisture evaporation device is provided with a water inlet structure for the water outlet end of the drainage pipe to extend into.
The refrigeration equipment according to claim 1, characterized in that: the end edge of the moisture evaporation device extends to the inner wall of the compressor chamber, and the water inlet structure is located in the middle and upper part of the moisture evaporation device.
The refrigeration equipment of claim 2, wherein the water inlet structure is located at the upper end of the water evaporation device, and the drainage pipe includes a first section connected to the defrost chamber and a second section connected to the first section. , the second section is embedded in the water evaporation device.
The refrigeration equipment of claim 3, wherein the second section is bent and extended from the first section with its water outlet end facing upward, and the water outlet end is higher than the lowest point of the second section.
The refrigeration equipment of claim 4, wherein the water evaporation device includes a water-absorbing member and a bracket for fixing the water-absorbing member, the second section is embedded in the water-absorbing member, and the water outlet end is not lower than the top of the water-absorbing member.
The refrigeration equipment according to any one of claims 1 to 5, characterized in that the evaporation dish is provided with a water level sensor, and the water level sensor is located at the middle and upper part of the side wall of the evaporation dish.
The refrigeration equipment according to any one of claims 1 to 5, characterized in that a heating tube is provided in the evaporation dish.
The refrigeration equipment according to any one of claims 1 to 5, characterized in that: the refrigeration equipment further includes an evaporator and a condensation fan arranged at intervals in the compressor chamber, and the evaporator is located at the condensation fan. and the evaporation dish, the water evaporation device is arranged close to the evaporator;

or,

The evaporation dish is located between the evaporator and the condensation fan, and the moisture evaporation device is Set close to the condensing fan.
A control method for refrigeration equipment as claimed in any one of claims 1 to 8, wherein a condensing fan is further provided in the compressor chamber, and the condensing fan and the moisture evaporation device are spaced apart, characterized in that: the control Methods include:

The refrigeration equipment is turned on,

The water level in the evaporating dish is obtained in real time. If the water level in the evaporating dish reaches the preset water level, the condensing fan is controlled to work.
The control method of refrigeration equipment according to claim 9, characterized in that: the control method further includes: if the water level in the evaporation dish does not reach the preset water level;

Continue to determine whether the refrigeration equipment is executing the defrost procedure. If so, control the condensing fan to work; if not, continue to determine whether the compressor is on. If so, control the condensing fan to continue to work. If not, continue to obtain the water level in the evaporator in real time. high.