CN111854256A - Ice ejection device, refrigerator and ice ejection control method of the refrigerator - Google Patents

Abstract

The invention discloses an ice ejection device, a refrigerator and an ice ejection control method of the refrigerator. The ice ejection device comprises an ice ejection pipe, a cover plate, a vacuum chamber, a negative pressure generator and a sealing part. The ice outlet of the ice pipeline; the sealing part is connected with the cover plate, when the cover plate moves from the open position to the closed position, the sealing part covers the opening, and the negative pressure generator extracts at least part of the gas from the vacuum chamber. The ice ejecting device utilizes the seal between the vacuum chamber and the sealing part to evacuate the vacuum chamber, and uses the principle of negative pressure to directly generate adsorption force between the sealing part and the vacuum chamber, so that the cover plate is firmly adsorbed on the ice outlet, solving the problem of It solves the problem that the cover plate is not tightly sealed, so that the cold air, ice cubes or ice water in the ice outlet pipe is not easy to leak.

Description

Ice ejection device, refrigerator and ice ejection control method of the refrigerator

technical field

The invention relates to the technical field of household appliances, and relates to an ice ejecting device, in particular to a refrigerator including the ice ejecting device, and an ice ejecting control method of the refrigerator.

Background technique

At present, refrigerators with ice making function generally have an ice taking port on the front panel of the box door. Through the ice taking port, ice cubes or ice water can be taken, and ice can be taken without opening the door, which is convenient and energy-saving. However, in the existing refrigerator, the problem of sealing the passage between the outside of the dispenser and the ice making and storing space has been difficult to solve.

Due to the poor sealing, the ice making and storage space leaks cold, which causes the external warm and humid air to enter the inside of the refrigerator, resulting in frost formation, which seriously causes the ice maker and the ice crushing mechanism to freeze, and finally causes the ice crushing motor, ice maker, ice storage. A series of problems such as box damage. Most of the existing technical solutions use a torsion spring or a stepping motor to control the return of the sealing cover plate of the ice passage, so as to achieve sealing. However, when the torsion spring is used for a long time, there will be insufficient torque, and other matching structures will gradually deform slightly or the matching gap will become larger, resulting in poor sealing.

SUMMARY OF THE INVENTION

In order to solve the problem of poor sealing in the prior art, the purpose of the present invention is to provide an ice ejecting device, a refrigerator and an ice ejecting control method of the refrigerator which utilizes air pressure to enhance the sealing performance of the cover plate.

To achieve one of the above purposes of the invention, an embodiment of the present invention provides an ice ejecting device, including:

Ice outlet piping, including ice outlet;

a cover plate, which is movably arranged at the ice outlet, and has a closed position for closing the ice outlet and an open position for opening the ice outlet;

a vacuum chamber, disposed at the ice outlet, which includes an opening and an air port;

a negative pressure generator, communicated with the air port;

the sealing part is connected with the cover plate and moves synchronously with the cover plate; when the cover plate moves from the open position to the closed position, the sealing part covers the opening, and the negative pressure A generator draws at least a portion of the gas from the vacuum chamber.

As a further improvement of an embodiment of the present invention, it further includes a pressure relief device, when the cover plate moves from the closed position to the open position, the pressure relief device controls the gas to enter the vacuum chamber through the gas port .

As a further improvement of an embodiment of the present invention, the pressure relief device and the negative pressure generator are integrated into one body;

The ice ejecting device further includes a controller, which is connected to the pressure relief device and the negative pressure generator, and controls the negative pressure generator when the cover plate moves from the open position to the closed position. The pressure generator works, and when the cover plate moves from the closed position to the open position, the pressure relief device is controlled to work.

As a further improvement of an embodiment of the present invention, it further includes a driving part, the controller is connected to the driving part, and controls the driving part to drive the cover plate to reciprocate between the closed position and the open position .

As a further improvement of an embodiment of the present invention, the vacuum chamber is jointly surrounded by a first wall surrounding the ice outlet and a second wall surrounding the outside of the first wall, the first wall and the One end of the second wall together encloses the air port, and the interface at the other end together encloses the opening.

As a further improvement of an embodiment of the present invention, the first wall and the second wall are provided on the ice outlet pipe or on the distributor bucket matched with the ice outlet pipe, or the first wall One of the first wall and the second wall is provided on the ice outlet pipe and the other is provided on the distributor bucket and the two are matched.

As a further improvement of an embodiment of the present invention, the sealing portion includes a sealing gasket, and when the cover plate moves from the open position to the closed position, the sealing gasket covers the opening.

As a further improvement of an embodiment of the present invention, the negative pressure generator includes a ventilation tube and an air pump communicated with the ventilation tube, and the ventilation tube communicates with the air port.

To achieve one of the above objectives of the invention, an embodiment of the present invention provides a refrigerator, including the above-mentioned ice ejecting device.

In order to achieve one of the above purposes of the invention, an embodiment of the present invention provides a method for controlling ice out of a refrigerator, comprising the steps of:

Input the signal to start taking ice;

The pressure relief device feeds gas into the vacuum chamber;

The driving part drives the cover to move to the fully open position;

Ice out of the ice outlet;

Input the signal to end taking ice;

the driving part drives the cover to move to the closed position;

The negative pressure generator extracts at least part of the gas in the vacuum chamber.

Compared with the prior art, the present invention has the following beneficial effects: the ice ejecting device utilizes the seal between the vacuum chamber and the sealing portion to evacuate the vacuum chamber, and utilizes the principle of negative pressure to directly generate adsorption force between the sealing portion and the vacuum chamber. , so that the cover plate is firmly adsorbed on the ice outlet. When the force of the cover plate to close the ice outlet becomes smaller and has a tendency to move away from the ice outlet, the sealing part is difficult to disengage due to being adsorbed by the vacuum chamber, thus increasing the sealing effect of the cover plate. The ability of the ice outlet uses the air pressure to enhance the sealing between the cover plate and the ice outlet, which solves the problem that the cover plate is not tightly sealed, and makes it difficult for the cold air, ice cubes or ice water in the ice outlet pipe to leak.

Description of drawings

1 is a front view of an ice ejecting device according to an embodiment of the present invention;

2 is a half-section view of an ice ejecting device according to an embodiment of the present invention;

Fig. 3 is a partial enlarged view of part A of Fig. 2 according to an embodiment of the present invention;

1. Ice outlet; 11. Ice outlet; 2. Cover plate; 21. Insulation structure; 3. Drive shaft; 4. Vacuum chamber; 41. First wall; 42. Second wall; 43. Opening; 44. Air port; 5. Sealing part; 6. Dispenser barrel; 7. Breathing pipe; 8. Tongue pressing button.

Detailed ways

The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present invention.

An embodiment of the present invention provides an ice ejecting device. The ice ejecting device has the advantage of using a vacuum to achieve negative pressure, making it more tightly sealed, so that the cold air, ice or ice water is not easily leaked, and the external hot air cannot enter the interior. In addition, it is not easy to fail after long-term use, and has better use effects. The technical solutions of the present invention are described below in conjunction with specific embodiments of an ice ejecting device applied to a refrigerator shown in Figures 1 to 3. The scope of protection is not limited to this, and the improvements mentioned in this embodiment can be adaptively applied to other ice ejecting devices.

Referring to Figures 1-3, a refrigerator according to an embodiment of the present application includes a box body, a door body, a distributor, an ice ejecting device, an ice storage box, and an ice maker.

The box body encloses a storage compartment, and the door body is movably connected to the box body to open and close the storage compartment. The ice maker is arranged inside the door or inside the storage compartment, and is used for preparing water into ice cubes; the ice storage box is used for receiving and storing ice cubes from the ice maker , for user access. The dispenser includes a dispenser bucket 6 assembled and disposed on the front surface of the door body, which encloses a dispenser cavity exposed to the outside of the refrigerator, and a user can take ice from the dispenser cavity. The ice ejecting device is used for exporting the ice in the ice maker or the ice storage box to the distributor cavity.

The ice ejecting device in this embodiment includes an ice ejecting duct 1 and a cover plate 2. The ice ejecting duct 1 is configured as a hollow tubular structure, one end of which is connected to the ice storage box so as to receive ice cubes from the ice storage box, and the other end is connected to the ice storage box. One end includes an ice outlet 11 , and the ice cubes in the ice outlet 11 can be discharged out of the ice outlet 1 through the ice outlet 11 . The cover plate 2 is movably arranged at the ice outlet 11, which has a closed position to close the ice outlet 11 and an open position to open the ice outlet 11: when ice needs to be taken, the cover plate 2 is in the open position to open the ice outlet 11 , so that the ice cubes can be discharged out of the ice channel 1 through the ice outlet 11; when there is no need to take the ice, the cover plate 2 is in a closed position to close the ice outlet 11, thereby preventing the ice cubes from accidentally falling out of the ice channel 1, Avoid the leakage of cold air in the ice storage box, the ice maker and even the storage compartment through the ice outlet 11, and prevent external hot air or dirty impurities from entering the ice storage box through the ice outlet 11. The ice maker is even inside the storage compartment.

As mentioned in the background art, the existing cover plate 2 has the problem that the ice outlet 11 is not tightly sealed, that is, the ice outlet 11 is not completely closed by the cover plate 2 , and the internal cold air overflows from the ice outlet 11 .

In order to solve the above technical problems, the ice making device provided by the present invention further includes a vacuum chamber 4 , a negative pressure generator and a sealing portion 5 . Specifically, the vacuum chamber 4 is provided with the ice outlet 11, the vacuum chamber 4 includes an opening 43 and an air port 44, the negative pressure generator is communicated with the air port 44, the sealing part 5 is connected with the cover plate 2 and moves synchronously with the cover plate 2, sealing The part 5 is connected with the cover plate 2 and can close the opening 43. When the cover plate 2 moves from the open position to the closed position, the sealing part 5 closes the opening 43, and the negative pressure generator extracts at least part of the gas in the vacuum chamber 4, sealing The sealing part 5 is in a negative pressure state; when the cover plate 2 moves from the closed position to the open position, the sealing part 5 moves together with the cover plate 2 away from the vacuum chamber 4 . In this way, through the cooperation of the vacuum chamber 4 and the sealing part 5, the force of the cover plate 2 to close the ice outlet 11 is increased, so that the cover plate 2 closes the ice outlet 11 more tightly, and the cold air inside the ice outlet 11 cannot overflow, and the cover plate 2 The sealing performance is better, which saves the internal cooling capacity, including ice cubes and ice water, which are not easy to leak.

Specifically, when the cover plate 2 is in the closed position, the cover plate 2 completely covers the ice outlet 11 . The movement of the cover 2 between the closed position and the open position can be in the form of translation or plane rotation or flipping.

Further, in this embodiment, the ice outlet pipe 1 is connected to the distributor bucket 6, and the cover plate 2 is connected to the ice outlet pipe 1 at the ice outlet 11 in a pivoted manner. Of course, in other embodiments , the cover plate 2 can also be connected to the dispenser bucket 6 at the ice outlet 11 .

Further, in this embodiment, the ice ejecting device includes a driving part, and the driving part drives the cover plate 2 to move so that the cover plate 2 reciprocates between the closed position and the open position. Specifically, the drive part includes a drive shaft 3, and a motor or a torsion spring. The motor or torsion spring is connected to the drive shaft 3, and the drive shaft 3 is connected to the cover plate 2. In this embodiment, the motor drives the drive shaft 3 to rotate, and the drive shaft 3. Connect the cover plate 2 to drive the cover plate 2 to open or close the ice outlet 11 in a flipped manner.

The sealing part 5 is connected with the cover plate 2 and moves synchronously with the cover plate 2. When the cover plate 2 moves from the open position to the closed position, the sealing part 5 covers the opening 43 and closes the vacuum chamber 4, and the sealing part 5 is in a negative pressure state. The open position in the embodiment includes the position where the vacuum chamber 4 is separated from the sealing portion 5 when the cover plate 2 is away from the ice outlet 11, and the part where the cold air in the ice outlet duct 1 can overflow from the ice outlet 11 is opened, and the closed position That is, opposite to the open position, the ice outlet duct 1 is completely isolated from the outside through the cover plate 2 and the sealing part 5, and the internal cold air cannot escape. Since the sealing part 5 moves with the cover plate 2, when the sealing part 5 changes When the deformation is large, there are differences in the positions of the separation sealing part 5 and the vacuum chamber 4 at different times, that is, the opening positions at different times may be different. It is completely separated from the cover plate 2 and the sealing part 5 .

In this embodiment, ice cubes or ice water can fall in the ice ejection device, which is defined as down according to the direction of gravity, and vice versa as up. The ice outlet 11 in this embodiment can be set in a vertical direction, and the falling direction of ice cubes or ice water is defined as the front, and the cover plate 2 also closes the ice outlet 11 from the front.

In addition, the ice ejecting device is matched with the distributor barrel 6, and the tongue pressing button 8 is arranged inside the distributor barrel 6. When the tongue pressing button 8 is pressed, the driving part drives the cover plate 2 to open the ice outlet 11, so that the ice cubes or When the ice water falls, a guide wall is also provided in the distributor bucket 6, and the ice cubes or ice water falling out from the front of the ice outlet 11 falls down through the guide wall.

The air port 44 of the vacuum chamber 4 is communicated with the negative pressure generator, and the negative pressure generator can extract at least part of the gas in the vacuum chamber 4, and in extreme cases, it can also extract all the gas, so that the vacuum chamber 4 is in a vacuum state;

The sealing portion 5 is connected with the cover plate 2 and moves synchronously with the cover plate 2. The sealing portion 5 can be integrally formed with the sealing portion 5 covering the ice outlet 11 on the cover plate 2, or can be sleeved on the cover plate 2. As shown in FIG. 3 , the sealing part 5 is connected with the cover plate 2 as a whole, and the adsorption force or pulling force received by the sealing part 5 corresponds to the adsorption force or pulling force received by the cover plate 2 . When the cover plate 2 moves from the open position to In the closed position, the sealing portion 5 covers the opening 43, and the negative pressure generator pulls out at least part of the gas from the vacuum chamber 4, so that the sealing portion 5 is in a negative pressure state. The sealing part 5 will be far away from the vacuum chamber 4, but when it is far away, since the gas in the vacuum chamber 4 becomes less, the internal pressure is lower than the external pressure, and the pressure difference between the inside and outside prevents the sealing part 5 from being far away from the vacuum chamber 4, and the sealing part 5 has to leave The opening 43 needs to overcome the suction force of the vacuum chamber 4, so that the sealing degree between the cover plate 2 and the ice outlet 11 is more reliable.

Further, in this embodiment, the vacuum chamber 4 surrounds the ice outlet 11 for a week, which is roughly a continuous groove structure around the ice outlet 11. The sealing portion 5 is arranged at the peripheral edge of the cover plate 2 and is connected to the vacuum The shape of the cavity 4 is adapted, the adsorption force between the sealing part 5 and the vacuum cavity 4 in this embodiment is more uniform, and the adsorption force is larger, so that the cover plate 2 is more tightly adsorbed on the ice outlet 11 . Of course, in an alternative embodiment, the sealing cavity 4 may be provided as a plurality of cavities that are not connected, and the sealing portion 5 may be provided as an integral structure or a plurality of separate structures covering the multiple cavities.

The vacuum chamber 4 is jointly surrounded by a first wall 41 surrounding the ice outlet 11 and a second wall 42 arranged around the outside of the ice outlet 11. One end of the first wall 41 and the second wall 42 together surround the air outlet 44, and the other One end together encloses the opening 43; the air port 44 can be an opening for connecting the ventilation pipe 7, except that the rest of the air port 44 is airtightly connected, and the opening 43 can be made into a completely open type, or a plurality of ports that can communicate with the outside world ; The first wall 41 and the second wall 42 can both be arranged on the ice outlet 1, the first wall 41 is naturally equipped with the ice outlet 11, and it surrounds the ice outlet 11, the second wall 42 and the ice outlet 11. The first wall 41 that is naturally provided encloses the vacuum chamber 4, so that the structure of the vacuum chamber 4 is simple, and a second wall 42 can be arranged on the periphery of the existing ice outlet pipe 1, and the sealing part 5 can also be existing. In some structures, a layer of sealing ring is added to the cover plate 2, and the two structures are simple, but solve the problem that the existing cover plate 2 closes the ice outlet 11 with a loose seal.

In addition, in other embodiments, the first wall 41 and the second wall 42 may also be provided on the distributor barrel 6, and the first wall 41 and the second wall 42 together form the vacuum chamber 4, and the vacuum chamber 4 only needs to be set The sealing ring on the cover plate 2 can cover the obtained position, or the vacuum chambers 4 can be provided in multiple numbers, some of which are provided on the ice outlet pipe 1 and some are provided on the distributor barrel 6, and the present invention can be realized. the goal of.

When the driving part drives the cover plate 2 to move, it drives the sealing part 5 to move together. After the sealing part 5 covers the opening 43, the negative pressure generator discharges the gas in the vacuum chamber 4, so that the sealing part 5 is in a negative pressure state, and the next time The negative pressure state is always maintained before the cover plate 2 needs to be opened. The negative pressure state refers to the corresponding state in which the sealing part 5 needs to overcome the difference in air pressure inside and outside the vacuum chamber 4 when it leaves the vacuum chamber 4 . Specifically, there are two cases as follows: 1. When the material of the sealing part 5 is hard, the deformation of the sealing part 5 is less, and the gas pressure in the vacuum chamber 4 is lower than the atmospheric pressure outside the vacuum chamber 4. If the sealing part 5 is to leave the vacuum Cavity 4 needs to overcome the air pressure difference inside and outside, and stick to the vacuum cavity 4 under the action of the air pressure difference; in extreme cases, the vacuum cavity 4 can be evacuated to a vacuum, at this time the air pressure difference between the inside and outside is the largest, and the sealing part 5 is the tightest fit 2. When the material of the sealing part 5 is soft, in extreme cases, the air pressure difference between inside and outside can be equal. At this time, the material of the sealing part 5 is greatly deformed. If the sealing part 5 is to be separated from the vacuum chamber 4, the deformation will be restored. As a result, there is an air pressure difference between the inside and outside, so that the cover plate 2 needs to be overcome to overcome the air pressure difference between the inside and outside.

Specifically, the sealing portion 5 of the above two materials is discussed in detail:

1. When the material of the sealing part 5 is relatively hard, the sealing part 5 includes a sealing ring, and a sealing washer is arranged in the sealing ring. When the cover plate 2 moves from the open state to the closed state, the sealing washer covers the opening 43, and the sealing ring and the opening 43 The sealing ring can be a material with high rigidity, and the sealing gasket can prevent the sealing between the sealing ring and the opening 43 from creating a gap, and increase the sealing ability of the sealing ring.

When the cover plate 2 is driven by the driving part to close the ice outlet 11, the sealing ring closes the opening 43. At this time, the force for closing the opening 43 depends on the driving force of the driving part. After the cover plate 2 closes the ice outlet 11, the negative The pressure generator evacuates the vacuum chamber 4, which can extract part of the gas, so that the air pressure in the vacuum chamber 4 is lower than the external air pressure, or can extract all the gas, so that the vacuum chamber 4 is in a complete vacuum state, and the specific amount of gas extracted is, It can be formulated according to actual needs. When the pumping is completed, the sealing ring is adsorbed outside the vacuum chamber 4 due to the difference in air pressure inside and outside, and the sealing part 5 is in a negative pressure state at this time.

2. When the material of the sealing portion 5 is soft, the sealing portion 5 includes a sealing skirt around the cover plate 2. When the cover plate 2 moves from the open position to the closed position, the sealing skirt covers the opening 43, and the sealing portion 5 can It is a silicone material or other elastic material covering the cover plate 2 as shown in FIG. 2 or FIG. 3 .

Further, the structure of the sealing skirt includes a first side and a second side, and the two sides of the sealing skirt are respectively fitted with the edge of the opening 43. In this case, the deformation of the sealing portion 5 can be made large, so that there is Better sealing effect, and for the above-mentioned first wall 41 and second wall 42, if there is a height difference between the two walls, the deformation of the first side and the second side is different, and the sealing can also be very good. .

In addition, the sealing skirt can also be set as a single-sided structure, and the single-sided sealing skirt is respectively fitted with all edges of the opening 43. When the structure of the cover plate 2 is thick, there is not much space left for the first side and the When the second side is used, the opening 43 of the vacuum chamber 4 can be covered by a single-sided sealing skirt, which can also be realized.

Because the material of the sealing skirt is relatively soft, after the negative pressure generator extracts at least part of the gas in the vacuum chamber 4, the sealing skirt is squeezed and deformed by the vacuum chamber 4, and the amount of gas extracted by the negative pressure generator is controlled to make the sealing part 5 The deformation will not be too large to cause failure. When the deformation is stopped, the state of the sealing part 5 is set to be a negative pressure state. When the sealing part 5 is in a negative pressure state, the air pressure in the vacuum chamber 4 can be less than or equal to the external air pressure. At this time, if the cover plate 2 needs to be opened, the sealing part 5 will be far away from the vacuum chamber 4, but when it is far away, the sealing skirt needs to recover the squeezed deformation first, and the sealing part 5 and the vacuum chamber 4 will be enclosed in the recovery process. The volume of the space becomes larger, resulting in a decrease in the internal pressure, which is smaller than the external pressure, and the pressure difference between the inside and outside prevents the sealing portion 5 from being further away from the vacuum chamber 4. When it is in the trend of , it will be resisted by the pressure difference between the inside and outside, so that the sealing degree between the cover plate 2 and the ice outlet 11 is more reliable.

Further, this embodiment also includes a pressure relief device. When the cover plate 2 moves from the closed position to the open position, the pressure relief device controls the gas to enter the vacuum chamber 4 through the gas port 44. The pressure relief device can be an exhaust device, or It can be a pressure relief valve, or the negative pressure generator can be reversed to change from exhaust to air supply.

Further, the pressure relief device and the negative pressure generator are integrated into one, which can be a parallel arrangement of the exhaust device and the air supply device, or the same structure, with two states of forward rotation and reverse rotation.

The negative pressure generator includes a ventilation pipe 7 and an air pump communicated with the ventilation pipe 7. The ventilation pipe 7 is communicated with the air port 44 of the vacuum chamber 4, the ventilation pipe 7 is sealed with the vacuum chamber 4, and the air pump is pumped through the ventilation pipe 7 to the vacuum chamber 4. Or air intake, the air pump can be set in the ice making room of the refrigerator, or other reasonable positions, when the air pump draws air to the vacuum chamber 4 through the ventilation pipe 7, it constitutes a negative pressure generator; 4 When the intake is in, the pressure relief device is formed.

The ice ejecting device also includes a controller, the controller is connected with the pressure relief device and the negative pressure generator, and controls the negative pressure generator to work when the cover plate 2 moves from the open position to the closed position, and when the cover plate 2 moves from the closed position to the open position When the pressure relief is in position, the pressure relief device is controlled to work. The controller is also connected to the driving part, and controls the driving part to drive the cover plate 2 to reciprocate between the closed position and the open position.

Further, a thermal insulation structure 21 is arranged between the cover plate 2 and the sealing portion 5. When the cover plate 2 closes the ice outlet 11, the sealing portion 5 is in direct contact with the ice outlet 11. The thermal insulation structure 21 can be filled with thermal insulation foam to prevent The cold energy is transferred out indirectly.

Further, an embodiment of the present application also provides a refrigerator. The refrigerator includes a dispenser, an ice storage unit or an ice making unit, and the above-mentioned ice ejecting device. The unit is connected, and the distributor bucket 6 is fixed on the door of the refrigerator. Corresponding to FIG. 2, the ice storage unit or ice making unit is arranged above the ice outlet pipe 1, and ice cubes or ice water are dropped into the ice outlet pipe as required. 1 inside.

Further, an embodiment of the present application also provides a method for controlling ice output of a refrigerator, comprising the steps of:

Input a signal to start taking ice, which can be a signal sent by a person to the controller through a touch screen or a button;

The control part controls the pressure relief device to pass gas into the vacuum chamber 4, so that the adsorption force of the vacuum chamber 4 on the sealing part 5 is weakened, and the cover plate 2 is easy to open;

The controller controls the driving part to drive the cover plate 2 to move to the fully open position, which means that the ice cubes can pass through the ice outlet 11 without being obstructed by the cover plate 2;

The controller then controls the ice outlet 11 to discharge ice, and this step opens the ice making unit or the ice storage unit, as well as other valves that need to be opened;

When the ice extraction is completed, input the end ice extraction signal to the controller, at this time stop the ice supply of the ice making unit or the ice storage unit, and close other ice extraction valves;

The controller controls the driving part to drive the cover plate 2 to move to the closed position;

The controller controls the negative pressure generator to extract at least part of the gas in the vacuum chamber 4, which can be fully discharged or partially discharged. According to the above description of the structure of the sealing portion 5, a corresponding amount of gas is discharged, so that the sealing portion 5 is under negative pressure. state.

Compared with the prior art, this embodiment has the following beneficial effects:

The ice ejecting device utilizes the seal between the vacuum chamber 4 and the sealing part 5 to evacuate the vacuum chamber 4, and uses the principle of negative pressure to directly generate an adsorption force between the sealing part 5 and the vacuum chamber 4, so that the cover plate 2 can be firmly adsorbed On the ice outlet 11 , when the force of the cover plate 2 to close the ice outlet 11 becomes smaller and tends to move away from the ice outlet 11 , the sealing portion 5 is difficult to disengage due to being adsorbed by the vacuum chamber 4 , thereby increasing the sealing effect of the cover plate 2 The capacity of the ice outlet 11 uses the air pressure to enhance the sealing between the cover plate 2 and the ice outlet 11, which solves the problem that the cover plate 2 is not tightly sealed, and makes the cold air, ice cubes or ice water in the ice outlet pipe 1. Not easy to leak.

The detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be Included in the protection scope of the present invention.

Claims (10)

1. A device for producing ice, characterized in that, comprising: Ice outlet piping, including ice outlet; a cover plate, which is movably arranged at the ice outlet, and has a closed position for closing the ice outlet and an open position for opening the ice outlet; a vacuum chamber, disposed at the ice outlet, which includes an opening and an air port; a negative pressure generator, communicated with the air port; the sealing part is connected with the cover plate and moves synchronously with the cover plate; when the cover plate moves from the open position to the closed position, the sealing part covers the opening, and the negative pressure A generator draws at least a portion of the gas from the vacuum chamber. 2 . The ice ejecting device according to claim 1 , further comprising a pressure relief device, when the cover plate moves from the closed position to the open position, the pressure relief device controls the passage of gas through the pressure relief device. 3 . The gas port enters the vacuum chamber. 3. The ice producing device according to claim 2, wherein the pressure relief device and the negative pressure generator are integrated into one; The ice ejecting device further includes a controller, which is connected to the pressure relief device and the negative pressure generator, and controls the negative pressure generator when the cover plate moves from the open position to the closed position. The pressure generator works, and when the cover plate moves from the closed position to the open position, the pressure relief device is controlled to work. 4 . The ice ejecting device according to claim 3 , further comprising a driving part, the controller is connected to the driving part, and controls the driving part to drive the cover plate to the closed position and any other position. 5 . reciprocates between the open positions. 5. The ice ejecting device according to claim 1, wherein the vacuum chamber is jointly enclosed by a first wall surrounding the ice outlet and a second wall surrounding the outside of the first wall, so One end of the first wall and the second wall together enclose the air port, and the other end together enclose the opening. 6 . The ice producing device according to claim 5 , wherein the first wall and the second wall are provided on the ice producing pipe or a distributor bucket matched with the ice producing pipe. 7 . Alternatively, one of the first wall and the second wall is provided on the ice outlet pipe and the other is provided on the distributor bucket and the two are matched. 7 . The ice ejecting device according to claim 1 , wherein the sealing part comprises a sealing gasket, and when the cover plate moves from the open position to the closed position, the sealing gasket covers the Open your mouth. 8 . The ice ejecting device according to claim 1 , wherein the negative pressure generator comprises a ventilation tube and an air pump communicated with the ventilation tube, and the ventilation tube communicates with the air port. 9 . 9 . A refrigerator, characterized in that, comprising the ice ejecting device according to any one of claims 1 to 8 . 10 . 10. A method for controlling ice out of a refrigerator, comprising the steps of: Input the signal to start taking ice; The pressure relief device feeds gas into the vacuum chamber; The driving part drives the cover to move to the fully open position; Ice out of the ice outlet; Input the signal to end taking ice; the driving part drives the cover to move to the closed position; The negative pressure generator extracts at least part of the gas in the vacuum chamber.

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