Refrigerator and vacuum protection control method

Abstract

The application relates to the technical field of refrigerator equipment, and discloses a refrigerator and a vacuum extraction protection control method, the refrigerator comprising: a box body, a door body rotatably connected to the box body to form a refrigeration space and a freezing space in the box body; a vacuum storage area located in the refrigeration space and detachably connected to the door body; a switch button arranged on the door body; and a vacuum extraction assembly connected to the vacuum storage area. The switch button in the refrigerator is matched with the vacuum extraction protection control method of the refrigerator, so that the switch button of the refrigerator has a mistaken touch prevention function.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerator equipment, and in particular to a refrigerator and a vacuum protection control method. Background Art

[0002] Currently, most refrigerated appliances on the market feature a vacuum door storage area for vacuum preservation. This device can activate vacuuming with a button. One control method uses a timer to activate the vacuuming process. A single operation lasts for a period of time, T1. However, single operation can present certain issues. Some users may accidentally press the button or improperly operate it, causing the pump to continuously operate and the vacuum level within the vacuum chamber to reach the pump's maximum vacuum pressure, preventing the pump from pumping air. This long-term issue shortens the pump's lifespan and consumes significant amounts of energy, resulting in a waste of resources. Summary of the Invention

[0003] In some embodiments of the present application, a refrigerator and a vacuum protection control method are provided, wherein the refrigerator includes a switch button. By setting the switch button and the controller, the refrigerator has an anti-accidental touch function, thereby extending the service life of the vacuum pump.

[0004] In some embodiments of the present application, the switch button is equipped with an anti-accidental touch function. When a press operation on the switch button is detected, the number of presses corresponding to the current press operation and the interval between the current press operation and the previous press operation are determined. If the number of presses is less than a preset number threshold, or the interval duration is greater than a preset interval duration threshold, the vacuum pump evacuates the vacuum storage area and increases the number of presses by one. The number of presses is the number of times the switch button has been pressed since the refrigerator door was last opened. This prevents the vacuum pump from starting to evacuate the vacuum when the user accidentally presses the switch button.

[0005] In some embodiments of the present application, when the door of the refrigerator is closed and then opened again, the number of times the switch button is pressed is reset to zero, thereby avoiding the vacuum state of the vacuum storage area being destroyed. Moreover, when the number of times the switch button is pressed is greater than the preset number of times, the vacuum pump cannot work normally in time when the switch button is pressed.

[0006] In some embodiments of the present application, the switch button is improved by installing a seat card box structure to accommodate the button circuit board, and the button circuit board is confined to an independent space. While utilizing the space on the door body to improve the utilization rate of the cold storage room, it prevents objects in the cold storage room from touching the button circuit board and causing circuit failure.

[0007] In some embodiments of the present application, the switch button is improved, a positioning hole is opened on the switch plate, and the fixed button is inserted into the positioning hole, so that the fixed button is exposed to the shell surface of the door body, so as to facilitate the user to operate the switch button.

[0008] In some embodiments of the present application, the switch button is improved. When the switch button is pressed, the fixed button contacts the button body on the button circuit board, closing the switch button so that the switch button sends a closing signal to the controller.

[0009] In some embodiments of the present application, the switch button is improved, and the button circuit board is fixed in the first direction, the second direction and the third direction by fixing pillars and fixing buckles to limit and fix the button circuit board.

[0010] In some embodiments of the present application, the first direction is a direction perpendicular to the key circuit board extending toward the switch board, the second direction is a direction parallel to the key circuit board, and the third direction is opposite to the first direction.

[0011] In some embodiments of the present application, the switch button is improved by providing a positioning groove and a positioning retaining ring to limit foreign matter in the refrigerating chamber from entering the mounting seat card box structure through the positioning hole.

[0012] In some embodiments of the present application, a refrigerator is provided, comprising: a cabinet, a door body rotatably connected to the cabinet body to form a refrigeration space and a freezer space within the cabinet; a vacuum storage area located in the refrigeration space, and the vacuum storage area is detachably connected to the door body; a switch button is arranged on the door body; a vacuum pumping assembly is connected to the vacuum storage area; a controller is configured to, including: when a pressing operation on the switch button is detected, determine the number of presses corresponding to this pressing operation and the interval duration between this pressing operation and the adjacent last pressing operation; if the number of presses is less than a preset number threshold, or the interval duration is greater than a preset interval duration threshold, the vacuum pumping assembly evacuates the vacuum storage area and adds one to the number of presses, which is the number of times the switch button has been pressed since the door of the refrigerator was last opened.

[0013] In some embodiments of the present application, the controller is further configured to: when the door of the refrigerator is closed and then opened again, the number of times the switch button is pressed is reset to zero.

[0014] In some embodiments of the present application, the switch button includes: a mounting seat card box structure, the mounting seat card box is formed with a mounting cavity, and a button circuit board is fixed in the mounting cavity; a switch plate, which is snapped into the opening of the cavity, and a positioning hole is opened on the switch plate to make way for the fixed button, and the fixed button extends into the positioning hole; a button body, which is connected to the button circuit board, and the button body contacts the fixed button.

[0015] In some embodiments of the present application, the switch button further includes: a fixed pillar connected to the mounting seat card box structure, and a limiting step is provided on the fixed pillar, and the button circuit board is clamped to the limiting step to limit the button circuit board in the first direction and the second direction.

[0016] In some embodiments of the present application, the switch button also includes: a fixing clip, which is arranged adjacent to the fixed pillar, and the fixing clip is connected to the mounting seat box mechanism, and the button circuit board is clamped on the fixing clip, so that the fixing clip limits the button circuit board in the third direction.

[0017] In some embodiments of the present application, a curved portion is provided on the fixed button to form a positioning groove on the edge of the fixed button.

[0018] In some embodiments of the present application, a positioning retaining ring is formed around the positioning hole in the first direction, and the positioning retaining ring is inserted into the positioning groove.

[0019] In some embodiments of the present application, a vacuum protection control method is provided, which is applied to a refrigerator including a vacuum storage area, a vacuum component, a switch button and a controller. The vacuum protection control method includes: when a pressing operation on the switch button is detected, determining the number of presses corresponding to this pressing operation and the interval duration between this pressing operation and the previous pressing operation; if the number of presses is less than a preset number threshold, or the interval duration is greater than a preset interval duration threshold, the vacuum component evacuates the vacuum storage area and adds one to the number of presses, where the number of presses is the number of times the switch button has been pressed since the door of the refrigerator was last opened.

[0020] In some embodiments of the present application, the method further includes: when the door of the refrigerator is closed and then opened again, the number of times the switch button is pressed is reset to zero. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of a refrigerator according to an embodiment of the present invention;

[0022] Figure 2 This is a diagram of a refrigerator door according to an embodiment of the present invention;

[0023] Figure 3 is a three-dimensional diagram of a vacuum storage area according to an embodiment of the present invention;

[0024] Figure 4 This is an embodiment of the present invention Figure 2 The enlarged diagram of point "B" in the middle;

[0025] Figure 5 This is an embodiment of the present invention Figure 2 Enlarged schematic diagram of the cross section at "C" in the middle;

[0026] Figure 6 This is a front view of a refrigerator door according to an embodiment of the present invention;

[0027] Figure 7 is a cross-sectional view of a switch button according to an embodiment of the present invention;

[0028] Figure 8 is an exploded view of a vacuum storage area according to an embodiment of the present invention;

[0029] Figure 9 This is an embodiment of the present invention Figure 5 sectional view of

[0030] Figure 10 This is an embodiment of the present invention Figure 2 A magnified diagram of the internal structure at "C'" in the middle;

[0031] Figure 11 2. It is a top view of the upper cover of the vacuum storage area according to an embodiment of the present invention;

[0032] Figure 12 This is an embodiment of the present invention Figure 2 Enlarged diagram of point "A" in the figure.

[0033] In the figure,

[0034] 100, storage room; 110, refrigerator; 120, freezer;

[0035] 200, door body; 210, vacuum preservation device; 220, switch plate; 221, positioning hole; 222, positioning retaining ring; 230, fixed button; 240, liner; 250, upper end cover; 260, door body shell; 270, pipeline; 280, vacuum assembly;

[0036] 300, lower box body; 301, locking assembly; 310, first buckle; 320, first hook; 330, storage cavity; 340, upper cover; 350, sealing strip; 360, accommodating cavity; 370, vacuum pump; 390, buckle cover;

[0037] 400, vacuum storage area;

[0038] 500, button body; 510, button circuit board; 520, fixing pillar; 521, limiting step; 530, fixing buckle; 540, mounting cavity;

[0039] 600, one-way valve; 610, connecting bayonet; 620, second hook; 640, vent; 650, first groove. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0041] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0044] Figure 1 This is a three-dimensional diagram of a specific embodiment of the refrigerator of the present application; Figure 1 and Figure 2The refrigerator of this embodiment has a roughly rectangular parallelepiped shape. Its exterior is defined by a storage compartment 100 defining a storage space and multiple doors 200 disposed within the compartment 100. The doors 200 include a door shell 260 located outside the compartment 100, a door liner 240 located inside the compartment 100, an upper end cap 250, a lower end cap, and an insulation layer located between the door shell 260, the door liner 240, and the upper end cap 250. Typically, the insulation layer is filled with a foam material.

[0045] The storage chamber 100 has an open box body, and the storage chamber 100 is vertically divided into a freezer compartment 120 below and a refrigerator compartment 110 above. Each of the separated spaces can have an independent storage space. In detail, the freezer compartment 120 is located at the lower side of the storage chamber 100 and can be selectively covered by a drawer-type freezer compartment 120. The space above the freezer compartment 120 is divided into a left side and a right side to form a refrigerator compartment 110 respectively, and the refrigerator compartment 110 can be selectively opened or closed by a refrigerator compartment door 200 pivotally mounted on the refrigerator compartment 110.

[0046] Continue to refer to Figure 1 and Figure 2 A vacuum preservation device 210 is detachably provided on the door body 200 (specifically the door body of the refrigerator compartment 110). The vacuum preservation device 210 provides a vacuum storage environment for stored items. At the same time, since the vacuum preservation device 210 is located on the inner liner 240 side of the door body, that is, located in the low-temperature storage compartment 100, the stored items in the vacuum preservation device 210 will obtain a vacuum and low-temperature storage environment, and the preservation effect is better.

[0047] Reference Figure 2 and Figure 6 The vacuum preservation device 210 includes a vacuum storage area 400 and a vacuum assembly 280 .

[0048] The vacuum storage area 400 has an approximately rectangular parallelepiped shape, and a storage cavity 330 is formed in the vacuum storage area 400 for storing items; the vacuum storage area 400 is detachably connected to the door body 200 so that the vacuum storage area 400 can be removed from the door body 200 for easy transportation.

[0049] The vacuuming assembly 280 is detachably connected to the storage chamber 330 via the pipe 270 , and is used to vacuum the storage chamber 330 so that the interior of the storage chamber 330 reaches a vacuum state.

[0050] When the storage cavity 330 needs to be vacuumed, the vacuum assembly 280 is connected to the storage cavity 330 through the pipe 270; when the storage cavity 330 does not need to be vacuumed, or the vacuum storage area 400 needs to be removed from the door body 200, the vacuum assembly 280 is separated from the storage cavity 330.

[0051] The vacuum preservation device 210 is arranged on the door body 200, and does not occupy additional refrigeration space in the storage chamber 100, making full use of the refrigeration space on the side of the door body liner 240, thereby improving the utilization rate of the refrigeration space of the refrigerator.

[0052] The vacuum preservation device 210 utilizes an independent vacuum storage area 400 for storage and preservation. Compared with traditional drawer sealing, the sealing process and difficulty of the box body are greatly reduced, making it easier to process.

[0053] The vacuum storage area 400 in the vacuum preservation device 210 can be removed from the door body 200, making it easier to carry and use.

[0054] Reference Figure 8 The vacuum storage area 400 includes an upper cover 340 and a lower box body 300, which can be fastened and locked or separated.

[0055] A locking assembly 301 is provided between the upper cover 340 and the lower box body 300. During the vacuum operation of the storage cavity 330, the vacuum storage area 400 needs to be in a closed state to prevent external gas from entering the storage cavity 330. At this time, the upper cover 340 and the lower box body 300 can be buckled and locked through the locking assembly 301 to achieve the above purpose.

[0056] In some embodiments of the present application, Figure 8 As shown, the locking assembly 301 includes a first hook 320 and a first buckle 310. The first hook 320 is arranged on the lower box body 300, and the first buckle 310 is arranged on the upper cover body 340. The upper cover body 340 and the lower box body 300 are buckled and locked by the first hook 320 and the first buckle 310.

[0057] In some embodiments of this application, refer to Figure 2 and Figure 8 The locking assembly 301 is provided on one side of the box body in the longitudinal direction ( Figure 3 A rotating shaft structure can be installed on the other side opposite to the locking assembly 301 to realize the rotation hinge between the upper cover 340 and the lower box body 300.

[0058] In some embodiments of the present application, the locking assembly 301 is provided on two opposite sides of the box body in the width direction ( Figure 8 The orientation shown is an exploded view of the box body). Double-sided fastening helps improve the sealing effect.

[0059] Reference Figure 3 and Figure 8 A sealing strip 350 is provided between the upper cover 340 and the lower box body 300 to improve the sealing effect of the box body and prevent external gas from entering the storage cavity 330 and affecting the vacuum effect.

[0060] Reference Figure 8 and Figure 11 In some embodiments of the present application, the vent 640 is provided on the upper cover 340 ( Figure 11 The orientation shown is a top view of the box body), the vent 640 is connected to the storage chamber 330, and a one-way valve 600 is provided at the vent 640. The one-way valve 600 is used to relieve the pressure of the storage chamber 330, and the vacuum assembly 280 is detachably connected to the vent 640 through the pipeline 270.

[0061] When it is necessary to evacuate the storage chamber 330, the vacuum assembly 280 is connected to the vent 640 through the pipe 270, and the one-way valve 600 allows the gas in the storage chamber 330 to be discharged in one direction through the vent 640; after the storage chamber 330 is evacuated, the vacuum assembly 280 is separated from the storage chamber 330, and the one-way valve 600 blocks the vent 640 at this time, preventing the gas in the storage chamber 330 from being discharged, thereby achieving vacuum pressure maintenance; when it is necessary to relieve the pressure of the storage chamber 330, the one-way valve 600 is pulled toward the outside of the box body, and the external gas can enter the storage chamber 330 through the gap between the one-way valve 600 and the vent 640, thereby achieving pressure relief.

[0062] The vacuum pump component 280 includes a vacuum pump 370 and a vacuum pump component (not shown in the figure). When vacuuming, the vacuum pump 370 works, and the gas in the storage chamber 330 is discharged through the vent 640 under the action of the vacuum pump 370. In addition, one end of the pipeline 270 is connected to the vacuum pump 370, and the pipeline 270 is connected to the connecting part of the pipeline 270. The sealing part is adapted to the vacuum pump component and is detachably sealed, which facilitates the separation of the vacuum pump 370 and the vacuum pump component, and facilitates the cleaning and maintenance of the vacuum pump component 280.

[0063] In some embodiments of the present application, the vacuum pump 370 is a brush vacuum pump, which has low cost, small size, and is easy to connect.

[0064] An accommodating cavity 360 is provided on the upper end cover 250 of the door body 200 , and the vacuum pump 370 is disposed in the accommodating cavity 360 , which fully utilizes the internal space of the door body 200 , and the vacuum pump 370 is not exposed, which is more beautiful.

[0065] The accommodating cavity 360 is a recessed portion that is recessed toward the inner side of the door body 200 . The top surface of the accommodating cavity 360 and the upper end cover 250 are on the same plane and do not affect the overall appearance of the door body 200 .

[0066] A first groove portion 650 is provided on the upper end cover 250, and a buckle cover 390 is provided at the opening of the first groove portion 650. The buckle cover 390 and the first groove portion 650 form a accommodating cavity 360. The buckle cover 390 and the upper end cover 250 are detachably connected to facilitate the installation and maintenance of the vacuum pump 370.

[0067] The buckle cover 390 is a flat plate structure. In some embodiments, Figure 5 and Figure 9 The buckle cover 390 is provided with a connecting buckle, and the upper end cover 250 is correspondingly provided with a second hook 620. The buckle cover 390 is installed by buckling the connecting buckle with the second hook 620.

[0068] Most of the pipeline 270 is hidden inside the door body 200, and only a small section of the pipeline 270 connected to the vacuum pump assembly on the inner liner 240 side is exposed. The overall pipeline 270 is arranged in a regular and orderly manner.

[0069] like Figure 6 、 Figure 7 and Figure 12 As shown, in some embodiments of the present application, the refrigerator includes a switch button, which includes a mounting seat card box structure, a switch plate 220 and a button body 500. The switch button is arranged as a whole on the door body 200. The switch button is used to control the change of the working state of the vacuum pump 370, and the switch button has the function of preventing accidental touch.

[0070] When it is determined that the number of times the switch button is pressed is less than the preset number, the vacuum pump 370 is started and the vacuum storage area is evacuated; when it is determined that the number of times the switch button is pressed is greater than or equal to the preset number, the vacuum pump 370 is not started.

[0071] In addition, each time the door 200 of the refrigerator is closed, the number of times the button switch is pressed is reset when it is opened again, avoiding the situation where the vacuum pump 370 needs to be started to evacuate the vacuum storage area when the number of presses is greater than the preset number. When the switch button is pressed, the vacuum pump 370 cannot work normally in time.

[0072] In some embodiments of the present application, the mounting seat card box structure is in the shape of an electrical box, and an installation cavity 540 is formed in the mounting snap structure. The mounting seat card box structure is connected to a fixed pillar 520 and a fixed buckle 530, and a limited position step 521 is provided on the fixed pillar 520.

[0073] The key circuit board 510 is clamped by the limiting step 521 to limit the key circuit board 510 in the first direction and the second direction; the key circuit board 510 is clamped by the fixing buckle 530 to limit the key circuit board 510 in the third direction, and then the key circuit board 510 is fixed to its own structure; it should be noted that the first direction is a direction perpendicular to the key circuit board 510 extending toward the switch board 220, the second direction is a direction parallel to the key circuit board 510, and the third direction is opposite to the first direction.

[0074] In addition, the number of fixed pillars 520 and fixed clips 530 is set to multiple, multiple fixed pillars 520 are connected to the mounting seat card box structure, and multiple fixed clips 530 are arranged adjacent to the fixed pillars 520 to jointly ensure the connection reliability between the key circuit board 510 and the mounting seat card box.

[0075] In some embodiments of the present application, the switch plate 220 is a rectangular plate structure, and a positioning hole 221 is opened on the switch plate 220 to allow the fixed button 230 to be located. A positioning retaining ring 222 is formed around the positioning hole 221 in the first direction.

[0076] The positioning button extends into the positioning hole 221 to define the installation position of the fixing button 230 , and the switch plate 220 is used to define the surface of the switch button exposed to the refrigerating chamber 110 .

[0077] The switch plate 220 is buckled into the opening of the mounting cavity 540 .

[0078] In some embodiments of the present application, the key body 500 is a switch and is connected to the key circuit board 510 by welding.

[0079] The button body 500 is used to convert the pressure acting on the fixed button 230 into an electrical signal, and reflect the number of times the switch button is pressed to the controller through the button circuit board 510 and the connecting wire. The controller controls the working state of the vacuum pump 370 according to the number of pressing operations.

[0080] In some embodiments of the present application, a protrusion adapted to the positioning hole 221 is formed on one side of the fixed button 230 , and an edge of the fixed button 230 extends in the first direction and the second direction to form a curved portion.

[0081] The raised setting on the fixed button 230 facilitates the user to press the switch button, and the coordination setting of the bent portion and the positioning retaining ring 222 restricts foreign matter in the refrigeration chamber 110 from entering the mounting seat card box structure through the positioning hole 221, and plays the role of positioning the fixed button 230, so that the fixed button 230 can be quickly and accurately installed on the switch plate 220.

[0082] When the user presses the fixed button 230, the fixed button 230 moves toward the button body 500. When the operation of pressing the fixed button 230 ends, the fixed button 230 moves away from the button body 500, and the bent portion always moves with the fixed button 230 under the restriction of the positioning ring 222.

[0083] In some embodiments of the present application, the controller is electrically connected to the switch button through a wire, and the controller is configured to determine the number of presses corresponding to this press operation and the interval duration between this press operation and the previous press operation when a press operation on the switch button is detected; if the number of presses is less than a preset number threshold, or the interval duration is greater than a preset interval duration threshold, the vacuuming component 280 evacuates the vacuum storage area and adds one to the number of presses, which is the number of times the switch button has been pressed since the door 200 of the refrigerator was last opened.

[0084] In other words, the threshold value of the pressing operation of the switch button and the threshold value of the time interval between the current and last pressing operations of the switch button are pre-set. When the controller receives the pressing operation sent by the switch button, the controller determines the number of presses corresponding to the pressing operation and the interval length between the current pressing operation and the last pressing operation. If the number of presses is less than the preset number threshold, or the interval length is greater than the preset interval length threshold, the vacuum pumping component 280 evacuates the vacuum storage area and increases the number of presses by one; if the number of presses is greater than or equal to the preset number threshold, or the interval length is less than or equal to the preset interval length threshold, the vacuum pumping component 280 does not evacuate the vacuum storage area.

[0085] In addition, the number of presses is the number of times the switch button has been pressed since the door 200 of the refrigerator was last opened. When the door 200 of the refrigerator is closed and then opened again, the number of times the switch button has been pressed is reset.

[0086] In some embodiments of the present application, the vacuum pump 370 can receive instructions from the controller in a timely manner by being connected to the controller. When receiving the work instruction, it starts to work. The vacuum pump 370 sucks out excess air in the storage area of ​​the vacuum door body 200 to ensure that the storage area is in a vacuum state.

[0087] In an embodiment of the present application, a vacuum protection control method is provided, and the control method is applied to a refrigerator including a vacuum storage area 400, a vacuum component 280, a switch button and a controller. The vacuum protection control method includes: when a pressing operation on the switch button is detected, determining the number of presses corresponding to this pressing operation and the interval duration between this pressing operation and the previous pressing operation; if the number of presses is less than a preset number threshold, or the interval duration is greater than a preset interval duration threshold, the vacuum component 280 evacuates the vacuum storage area and adds one to the number of presses, which is the number of times the switch button has been pressed since the door 200 of the refrigerator was last opened.

[0088] The method further includes: when the door 200 of the refrigerator is closed and then opened again, the number of times the switch button is pressed is reset to zero.

[0089] In some embodiments of the present application, the method is that when the refrigerator door is opened for the first time and the switch button is touched, the controller controls the vacuum pump 370 to vacuum the storage area. After a preset time T1, the vacuuming stops. At this time, the switch button is touched again, and the vacuum pump 370 vacuums the storage area for a second time. After a preset time T1, the vacuuming stops. Since the vacuum degree inside the storage area is already high at this time, when the switch button is touched again, the vacuum system is no longer started, and the vacuum pump 370 enters a sleep time, which is a preset time T2. When the sleep time T2 ends, the switch button is touched again to vacuum the storage area again. In extreme cases, there is a possibility of accidentally touching the switch button multiple times. When the refrigerator is closed and the refrigerator door is opened again, the program is initialized and returns to the state of the first opening of the refrigerator door. The controller and the refrigerator are electrically connected, the switch button converts the pressure signal into an electrical signal, transmits it to the controller, and the controller converts the electrical signal into a digital signal to record the number of vacuuming operations.

[0090] According to the first concept of the present application, since the switch button is provided with an anti-accidental touch function, when a pressing operation on the switch button is detected, the number of presses corresponding to this pressing operation and the interval duration between this pressing operation and the adjacent last pressing operation are determined; if the number of presses is less than the preset number threshold, or the interval duration is greater than the preset interval duration threshold, the vacuum pump evacuates the vacuum storage area and adds one to the number of presses, which is the number of times the switch button has been pressed since the door of the refrigerator was last opened. This avoids the situation where the vacuum pump starts to vacuum when the user accidentally touches the button switch, thereby extending the service life of the vacuum pump.

[0091] According to the second concept of the present application, since the number of times the switch button is pressed is reset to zero when the door of the refrigerator is closed and then opened again, the vacuum state of the vacuum storage area is avoided from being destroyed. Moreover, when the number of presses is greater than the preset number, the vacuum pump cannot work normally in time when the switch button is pressed, thereby ensuring the normal operation of the refrigerator of the present application.

[0092] According to the third concept of the present application, since the switch button is improved and the button circuit board is accommodated by installing a seat card box structure, the button circuit board is confined to an independent space. Therefore, while utilizing the space on the door body to improve the utilization rate of the cold storage room, it prevents objects in the cold storage room from touching the button circuit board and causing circuit failure, thereby ensuring the electrical reliability of the button switch.

[0093] According to the fourth concept of the present application, since the switch button is improved, a positioning hole is opened on the switch plate, and the fixed button is inserted into the positioning hole, so that the fixed button is exposed to the shell surface of the door body, which facilitates the user's operation of the switch button and improves the user experience.

[0094] According to the fifth concept of the present application, since the switch button is improved, when the switch button is pressed, the fixed button contacts the button body on the button circuit board, so that the switch button is closed, so that the switch button sends a closing signal to the controller.

[0095] According to the sixth concept of the present application, due to the improvement of the switch button, the key circuit board is fixed in the first direction, the second direction and the third direction by fixing pillars and fixing clips to limit and fix the key circuit board. By positioning in three directions, the connection stability of the key circuit board is ensured.

[0096] According to the seventh concept of the present application, since the switch button is improved, the positioning groove and the positioning retaining ring are set to limit foreign matter in the cold storage room from entering the mounting seat card box structure through the positioning hole, thereby ensuring the sealing of the button switch.

[0097] According to the eighth concept of the present application, since the installation method of the vacuum storage area is improved, specifically, the vacuum storage area is movably connected to the door body, so the storage space of the cold storage area is not occupied, thereby improving the utilization rate of the refrigerator storage space.

[0098] According to the ninth concept of the present application, since the connection method between the vacuum storage area and the vacuum pumping device is improved, specifically, the pipelines of the vacuum storage area and the vacuum pumping device are movably connected, the vacuum storage area can be disassembled and used when the vacuum pumping process is not being performed, which is convenient for taking out and carrying.

[0099] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: The refrigerator comprises: a box body, wherein the door body is rotatably connected to the box body to form a refrigeration space and a freezer space in the box body; a vacuum storage area located in the refrigerated space and detachably connected to the door body; A switch button is provided on the door body; a vacuum pumping assembly connected to the vacuum storage area; The controller is configured to include: When a pressing operation on the switch button is detected, determining the number of presses corresponding to the current pressing operation and the interval between the current pressing operation and the previous pressing operation; If the number of presses is less than a preset threshold, or the interval duration is greater than a preset threshold, the vacuuming component evacuates the vacuum storage area and adds one to the number of presses, which is the number of times the switch button has been pressed since the refrigerator door was last opened.

2. The refrigerator according to claim 1, wherein The controller is further configured to: When the door of the refrigerator is closed and then opened again, the number of times the switch button is pressed is reset to zero.

3. The refrigerator according to claim 1, wherein The switch button includes: A mounting seat card box structure, wherein the mounting seat card box is formed with a mounting cavity, and a key circuit board is fixed in the mounting cavity; A switch plate is buckled into the opening of the mounting cavity, and a positioning hole is formed on the switch plate to allow for a fixed button, and the fixed button extends into the positioning hole; The key body is connected to the key circuit board, and the key body contacts the fixed key.

4. The refrigerator according to claim 3, wherein The switch button also includes: A fixed pillar is connected to the mounting seat card box structure, and a limit step is provided on the fixed pillar. The key circuit board is clamped to the limit step to limit the key circuit board in a first direction and a second direction.

5. The refrigerator according to claim 4, wherein: The switch button also includes: A fixing buckle is arranged adjacent to the fixing pillar, and the fixing buckle is connected to the mounting seat box mechanism, and the key circuit board is clamped on the fixing buckle, so that the fixing buckle limits the key circuit board in the third direction.

6. The refrigerator according to claim 3, wherein: A bent portion is provided on the fixed button to form a positioning groove on the edge of the fixed button.

7. The refrigerator according to claim 6, wherein A positioning retaining ring is formed around the positioning hole in a first direction, and the positioning retaining ring is inserted into the positioning groove.

8. A vacuum protection control method, characterized in that: The refrigerator according to any one of claims 1 to 7 includes a vacuum storage area, a vacuum assembly, a switch button, and a controller, and the vacuum protection control method includes: When a pressing operation on the switch button is detected, determining the number of presses corresponding to the current pressing operation and the interval between the current pressing operation and the previous pressing operation; If the number of presses is less than a preset threshold, or the interval duration is greater than a preset threshold, the vacuuming component evacuates the vacuum storage area and adds one to the number of presses, which is the number of times the switch button has been pressed since the refrigerator door was last opened.

9. The vacuum protection control method according to claim 8, characterized in that: The method further comprises: When the door of the refrigerator is closed and then opened again, the number of times the switch button is pressed is reset to zero.

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