Refrigeration equipment

Abstract

This invention relates to a refrigeration device, comprising: a cabinet; a door; a mounting box disposed within the door or cabinet, the mounting box having an installation space; a coil wheel disposed within the installation space; a gear ring on the coil wheel; a vacuum tube wound around the coil wheel; a vacuum connector located at one end of the vacuum tube; a vacuum pumping device connected to the other end of the vacuum tube; a drive motor with a drive gear at its output end; and a clutch device located between the drive gear and the gear ring. When vacuuming is required, the clutch device is closed, allowing the gear ring to rotate freely relative to the drive gear; the vacuum connector directly pulls the vacuum tube, driving the coil wheel to rotate, thus extending the vacuum tube out of the installation space for vacuuming. After the vacuuming operation is completed, the clutch device is opened, and the drive gear can be connected to the gear ring via the clutch device to control the rotation of the coil wheel, so that the vacuum tube is wound around the coil wheel, improving the convenience of vacuum preservation operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum preservation, and in particular to a refrigeration device. BACKGROUND

[0002] With the increasing demand for food health, people have increasingly high requirements for the preservation capacity of refrigeration devices such as refrigerators and freezers. The vacuum preservation technology applied to refrigeration devices mainly includes a vacuum drawer arranged in the refrigeration device, and a vacuum pumping module for pumping vacuum in a sealed drawer or a sealed preservation box to achieve preservation of food materials in the drawer and the preservation box.

[0003] At present, the vacuum pumping device applied to refrigeration devices has a fixed vacuum connector position. When pumping vacuum for a relative vacuum preservation box, an external pipeline is usually connected for convenient use by the user. Moreover, as a functional accessory, the storage of the external pipeline brings inconvenience to the user. SUMMARY

[0004] The present application aims to provide a refrigeration device to optimize the structure of refrigeration devices such as refrigerators and freezers in the prior art and improve the convenience of vacuum preservation operation.

[0005] To solve the above technical problems, the present application adopts the following technical solutions:

[0006] According to one aspect of the present application, a refrigeration device is provided, which comprises: a cabinet; a door body arranged at the front side of the cabinet; a mounting box arranged in the door body or the cabinet, and forming a mounting space in the mounting box; a coil pipe wheel rotatably arranged in the mounting space; a circumferential gear ring arranged on the outer peripheral wall of the coil pipe wheel; a vacuum pipeline wound on the coil pipe wheel; a vacuum connector arranged at one end of the vacuum pipeline; a vacuum pumping device connected to the other end of the vacuum pipeline and used for pumping vacuum; a driving motor arranged in the mounting space, and an output end of the driving motor being provided with a driving gear; and a clutch device arranged between the driving gear and the gear ring; wherein when the clutch device is opened, the driving gear is in transmission connection with the gear ring through the clutch device; and when the clutch device is closed, the gear ring can freely rotate relative to the driving gear.

[0007] In some embodiments of the present application, the clutch device comprises an electromagnet, a first transmission gear and a second transmission gear; the electromagnet is arranged in the mounting space; the first transmission gear is rotatably arranged on the electromagnet and is in meshing transmission connection with the driving gear; the second transmission gear is rotatably arranged on the electromagnet and is coaxially arranged with the first transmission gear; the second transmission gear is in meshing transmission connection with the gear ring; when the electromagnet is powered on, the first transmission gear and the second transmission gear are attracted to each other and can rotate synchronously; when the electromagnet is powered off, the first transmission gear and the second transmission gear are separated from each other and can rotate freely relative to each other.

[0008] In some embodiments of the present application, the clutch device further comprises a friction plate arranged on the side of the first transmission gear facing the second transmission gear; when the electromagnet is powered on, the friction plate can be attracted to the electromagnet to make the first transmission gear and the second transmission gear attracted to each other and rotate synchronously.

[0009] In some embodiments of the present application, the clutch device further comprises a transmission shaft; the transmission shaft is rotatably arranged on the electromagnet; the first transmission gear is rotatably sleeved on the transmission shaft; the second transmission gear and the friction plate are sleeved on the transmission shaft and rotate synchronously with the transmission shaft.

[0010] In some embodiments of the present application, the clutch device further comprises a third transmission gear; the third transmission gear is arranged between the second transmission gear and the gear ring and is in meshing connection with the second transmission gear and the gear ring, respectively.

[0011] In some embodiments of the present application, the mounting box is concavely arranged with a mounting position; the electromagnet, the first transmission gear and the second transmission gear are coaxially arranged at the mounting position; the clutch device further comprises a cover body fixedly arranged in the mounting space and limiting and fixing the electromagnet, the first transmission gear and the second transmission gear on the mounting position.

[0012] In some embodiments of the present application, the refrigeration device further comprises a pipe joint and a connecting pipe; the pipe joint is arranged at the shaft center of the coil wheel, the inner end of the vacuum pipe is communicated with the pipe joint, and the outer end of the vacuum pipe is communicated with the vacuum joint; one end of the connecting pipe is connected to the pipe joint, and the other end of the connecting pipe is connected to the vacuumizing device.

[0013] In some embodiments of the present application, the refrigeration device further comprises a cover plate; the mounting box is recessed with a mounting groove; the mounting groove is shaped to match the profile of the coil wheel, and the coil wheel is rotatably arranged in the mounting groove; the cover plate covers the mounting groove to cover the coil wheel in the mounting groove; and the pipe joint is arranged at the center of the cover plate and at least partially exposed outside the cover plate.

[0014] In some embodiments of the present application, an opening groove is arranged on the front side of the door body, and the mounting box is arranged in the opening groove; a panel is arranged at the opening of the opening groove, the panel covers the front side of the mounting box and encapsulates the mounting box in the opening groove, and the panel partially or entirely covers the opening groove.

[0015] In some embodiments of the present application, a fitting groove is recessed on the outer peripheral wall of the mounting box, the vacuum joint is arranged outside the mounting box, and the vacuum joint is partially or entirely accommodated in the fitting groove and exposed outside the panel.

[0016] From the above technical solutions, the present application has at least the following advantages and positive effects:

[0017] In the refrigeration device of the present application, the mounting box is arranged in the door body or the box to provide a mounting space, the vacuum pipe, the vacuum joint and the vacuumizing device are cooperated to realize the vacuumizing function, and the coil wheel arranged in the mounting space enables the vacuum pipe to be wound on the coil wheel. When the vacuumizing operation is needed for the sealed container outside the door body, the coil wheel is driven to rotate by the vacuum joint and the vacuum pipe, so that the vacuum pipe is pulled out of the mounting space to perform the vacuumizing operation. After the vacuumizing operation is completed, the driving motor and the driving wheel are cooperated with the open state clutch device to make the driving gear and the gear ring on the coil wheel in transmission connection, so as to control the reverse rotation of the coil wheel to make the vacuum pipe be wound on the coil wheel again. At the same time, during the process that the vacuum pipe is pulled out of the mounting space, the clutch device is in the closed state, and the gear ring can rotate freely relative to the driving gear, so that the driving motor and the driving gear are not affected. The operation is simple, the storage is convenient, and the convenience of the vacuum preservation operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a refrigerator according to an embodiment of the present application.

[0019] Figure 2 is Figure 1 is a partial structural schematic diagram of the refrigerator of

[0020] Figure 3 is Figure 2The exploded view of the door body.

[0021] Figure 4 The Figure 3 The structure view of the installation box.

[0022] Figure 5 The Figure 4 The exploded view of the installation box.

[0023] Figure 6 The Figure 5 The structure view of the coil wheel.

[0024] Figure 7 The Figure 5 The structure view of the clutch device.

[0025] Figure 8 The Figure 7 The exploded view of the installation box.

[0026] Figure 9 The Figure 5 The structure view of the driving motor and the driving gear.

[0027] Figure 10 The Figure 5 The assembly view of the coil wheel, the clutch device, the driving motor and the driving gear.

[0028] Figure 11 The Figure 10 The structure view from another angle.

[0029] The reference signs are explained as follows: 1, box body; 11, door body; 111, opening slot; 112, panel; 113, control button; 12, installation box; 121, first installation position; 122, assembly slot; 123, installation slot; 124, second installation position; 13, cover plate; 131, fixed part; 2, vacuumizing device; 21, vacuum pump; 22, rubber sleeve; 23, fixed cover; 3, vacuum pipeline; 31, pipeline joint; 32, connecting pipe; 4, vacuum joint; 5, coil wheel; 51, winding slot; 52, first end wall; 53, second end wall; 54, gear ring; 6, driving motor; 61, driving gear; 7, clutch device; 71, electromagnet; 72, first transmission gear; 73, second transmission gear; 74, third transmission gear; 75, friction plate; 76, transmission shaft; 77, cover body. DETAILED DESCRIPTION

[0030] The typical embodiments embodying the features and advantages of the present application are described in detail below. It should be appreciated that the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0031] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0033] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] With the increasing demand for food health, people's demand for the preservation ability of refrigerators, refrigerators and other refrigeration equipment is also getting higher and higher. The vacuum preservation technology applied on the refrigeration equipment is mainly the vacuum drawer arranged in the refrigeration equipment, and the vacuumization module is used to perform vacuumization treatment on the sealed drawer or sealed preservation box, so as to realize the preservation of food materials in the drawer and the preservation box.

[0035] With the increasing demand for food health, people's demand for the preservation ability of refrigerators, refrigerators and other refrigeration equipment is also getting higher and higher. The vacuum preservation technology applied on the refrigeration equipment is mainly the vacuum drawer arranged in the refrigeration equipment, and the vacuumization module is used to perform vacuumization treatment on the sealed drawer or sealed preservation box, so as to realize the preservation of food materials in the drawer and the preservation box.

[0036] At present, the vacuumization device applied on the refrigeration equipment is basically fixed in position. When performing vacuumization operation on the relative vacuum preservation box, external pipeline is usually needed to be connected, which is convenient for users to use. And as a functional accessory, the storage of the external pipeline also brings inconvenience to the users.

[0037] The refrigeration equipment in this embodiment of the invention can be a freezer, refrigerator, bar cabinet, or other refrigeration cabinet. The following uses a refrigerator as an example to describe the structural principle of the refrigeration equipment in this embodiment of the invention in detail.

[0038] For ease of description, unless otherwise specified, the directions of up, down, left, right, front, and back in this article are based on the state of the refrigerator when it is in use. The refrigerator door is the front, and the opposite direction is the back.

[0039] Figure 1 This is a schematic diagram of the structure of a refrigerator according to an embodiment of the present invention. Figure 2 yes Figure 1 A partial structural diagram is shown, in which vacuum connector 4 is in the state of extending out of door body 11.

[0040] Please see Figure 1 and Figure 2 The refrigerator provided in this embodiment of the invention mainly includes a cabinet 1, a door 11, and a vacuum module.

[0041] The cabinet 1 adopts a cuboid structure. Multiple separate refrigeration compartments can be set up inside the cabinet 1. Each of these compartments can serve as an independent storage space, such as a freezer, refrigerator, or variable temperature compartment, to meet different refrigeration needs (freezing, refrigeration, and variable temperature) according to the type of food, and to facilitate storage. The multiple refrigeration compartments can be arranged vertically or horizontally.

[0042] Door 11 is located on the front side of the cabinet 1 and is used to open and close the refrigeration compartment. Door 11 is connected to the cabinet 1 via a hinge, allowing door 11 to rotate around the hinge axis, thus opening and closing the refrigerator door 11 and the corresponding refrigeration compartment. It is understood that multiple doors 11 can be provided, each corresponding to a refrigeration compartment. A single door 11 can also open and close multiple refrigeration compartments simultaneously.

[0043] In some embodiments, the refrigeration room is equipped with a sealed drawer or a removable sealed box. The sealed drawer and sealed box can be used to individually seal and preserve food items.

[0044] In some embodiments, a vacuum module is provided on the door 11. The vacuum module can extend out of the door 11 and is used to vacuum the sealed drawers and sealed boxes inside the refrigeration compartment, and can also vacuum the sealed bags outside the refrigerator.

[0045] In some other embodiments, the vacuum module may also be located inside the door 11 or in the space inside the housing 1.

[0046] Figure 3 yes Figure 2A schematic diagram of the exploded structure of the middle door body 11. Figure 4 is Figure 3 A schematic diagram of the structure inside the installation box 12. Figure 5 is Figure 4 A schematic diagram of the exploded structure of the installation box 12.

[0047] Please refer to Figures 3 to 5 In some embodiments, the installation box 12 is arranged inside the door body 11, and the internal space of the installation box 12 is used as the installation space of the vacuum pumping module.

[0048] In some embodiments, an open slot 111 is recessed on the front side of the door body 11, and the installation box 12 is arranged in the open slot 111. At the same time, a panel 112 is arranged at the slot opening of the open slot 111, which covers the front side of the installation box 12 and encapsulates the installation box 12 in the open slot 111. The panel 112 is flush with the surface of the door body 11, so as to maintain the integrity and aesthetics of the appearance surface of the door body 11.

[0049] In some embodiments, the front side of the installation box 12 is open, and the panel 112 encapsulates the front side opening of the installation box 12 when it is encapsulated in the open slot 111.

[0050] In this embodiment, the open slot 111 is covered by the panel 112, so that part of the open slot 111 is exposed, and part of the components of the vacuum pumping module can be extended out of the open slot 111 from the exposed area of the open slot 111, or retracted into the open slot 111. It should be noted that in other embodiments, the panel 112 can also cover the open slot 111 entirely, and only leave openings corresponding to part of the components of the vacuum pumping module.

[0051] It should be noted that in other embodiments, the installation box 12 can also be integrally formed in the door body 11, or integrally formed in the cabinet 1.

[0052] Please refer to Figures 1 to 5 The vacuum pumping module mainly includes a vacuum pumping device 2, a vacuum pipeline 3, a vacuum connector 4, a coil wheel 5, a driving motor 6, and a clutch device 7.

[0053] The vacuum pumping device 2 is arranged in the installation box 12, one end of the vacuum pipeline 3 is connected with the vacuum pumping device 2, and the other end of the vacuum pipeline 3 is connected with the vacuum connector 4. Therefore, the vacuum pumping device 2 can cooperate with the vacuum pipeline 3 and the vacuum connector 4 to pump air, thereby realizing the vacuum pumping function.

[0054] In some embodiments, the vacuumizing device 2 employs a vacuum pump 21. The vacuum pump 21 is connected with the vacuum joint 4 through the vacuum pipeline 3, so that the vacuum pump 21 can realize the vacuumizing function in cooperation with the vacuum pipeline 3 and the vacuum joint 4. It can be understood that the vacuumizing device 2 can also employ other air extraction devices.

[0055] The vacuum pump 21 is arranged in the mounting box 12, and a first mounting position 121 is recessed in the mounting box 12. The vacuum pump 21 is fixed in the first mounting position 121, so that the vacuum pump 21 can be quickly and stably fixed in the mounting box 12.

[0056] Please refer to Figure 5 In some embodiments, the vacuumizing device 2 further comprises a rubber sleeve 22 and a fixing cover 23. The rubber sleeve 22 can be made of flexible materials such as rubber. The rubber sleeve 22 is annular and is sleeved on the peripheral wall of the vacuum pump 21. The rubber sleeve 22 can be fitted in the first mounting position 121 and provides damping and buffering effects for the vacuum pump 21. The fixing cover 23 is connected with the inner wall of the mounting box 12, such as being fixed in the mounting box 12 by bolts or screws, so as to clamp and fix the vacuum pump 21 in the first mounting position 121. It can be understood that the rubber sleeve 22 can be clamped between the vacuum pump 21 and the fixing cover 23, and between the vacuum pump 21 and the inner wall of the first mounting position 121.

[0057] Please refer to Figures 2 to 5 In some embodiments, the vacuum joint 4 is arranged outside the mounting box 12 and inside the opening slot 111 of the door body 11. The vacuum joint 4 can extend out of the opening slot 111 to be connected with the sealed drawer, the sealed box body and the sealed bag, so as to extract the gas in the corresponding sealed container by the vacuum pump 21 and the vacuum pipeline 3, and form a vacuum low-pressure storage environment inside.

[0058] In some embodiments, a mounting groove 122 is recessed on the peripheral wall of the mounting box 12, the mounting groove 122 is located inside the contour of the opening slot 111, and the mounting groove 122 is used to accommodate the vacuum joint 4. When the vacuum joint 4 is retracted into the mounting groove 122, the vacuum joint 4 can be completely accommodated in the opening slot 111, and the vacuum joint 4 is exposed to the panel 112. It can be understood that the vacuum joint 4 can also be only partially accommodated in the opening slot 111.

[0059] Figure 6 is Figure 5 A structural schematic diagram of the intermediate pipe wheel 5. Figure 7 is Figure 5 A structural schematic diagram of the clutch device 7. Figure 8 is Figure 7 An exploded structural schematic diagram of the drive motor 6. Figure 9 is Figure 5 A structural schematic diagram of the drive motor 6 and the drive gear 61. Figure 10is Figure 5 Assembly view of the middle coil wheel 5, the clutch device 7, the driving motor 6 and the driving gear 61. Figure 11 is Figure 10 Structure view from another perspective.

[0060] Please refer to Figures 4 to 11 The coil wheel 5 is rotatably arranged in the installation space of the installation box 12, and the coil wheel 5 is used to wind the vacuum pipeline 3 so that the vacuum pipeline 3 can be wound and stored in the door body 11. A winding groove 51 is arranged in a circumferential direction on the peripheral wall of the coil wheel 5, and the vacuum pipeline 3 is wound in the winding groove 51. The vacuum pipeline 3 can be wound or unwound on the coil wheel 5, and the coil wheel 5 is driven to rotate in the door body 11 synchronously.

[0061] Please refer to Figure 6 In some embodiments, the axial two ends of the coil wheel 5 are respectively provided with a first end wall 52 and a second end wall 53 which protrude in a circumferential direction. The winding groove 51 is annular and is formed between the first end wall 52 and the second end wall 53. At the same time, a gear ring 54 is arranged on the outer peripheral wall of the first end wall 52, and the gear ring 54 is used to drive the coil wheel 5 to rotate reversely, thereby winding the vacuum pipeline 3 in the winding groove 51 of the coil wheel 5.

[0062] It should be noted that, in some embodiments, the gear ring 54 can also be arranged on the outer peripheral wall of the second end wall 53 or other regions of the coil wheel 5.

[0063] Please refer to Figure 5 In some embodiments, the installation space of the installation box 12 is recessed with an installation groove 123 for installing the coil wheel 5. The installation groove 123 is circular in profile, and the profile of the installation groove 123 is matched with the profile of the coil wheel 5, so that the coil wheel 5 is rotatably arranged in the installation groove 123. In some embodiments, the center of the installation groove 123 serves as a rotation axis, and the coil wheel 5 is rotatably connected at the rotation axis.

[0064] Please refer to Figures 4 to 8 In some embodiments, the installation box 12 is further provided with a cover plate 13 which covers the installation groove 123, and the cover plate 13 is used to cover the coil wheel 5 in the installation groove 123. The cover plate 13 is provided with a plurality of fixing portions 131 on the peripheral side, and the fixing portions 131 are fixed at intervals on the peripheral side of the installation groove 123. The cover plate 13 is fixed in the installation box 12 through the fixing portions 131, thereby covering the coil wheel 5 in the installation groove 123, and thereby limiting the coil wheel 5 to rotate stably in the installation groove 123.

[0065] Please refer to Figure 6In some embodiments, the vacuum-pumping module further comprises a pipe joint 31 and a connecting pipe 32. The pipe joint 31 is arranged at the center of the cover plate 13 and at the axis of the coil wheel 5. The pipe joint 31 is used to connect the vacuum pipe 3 and the vacuum pump 21. Specifically, when the vacuum pipe 3 is wound around the coil wheel 5, the inner end of the vacuum pipe 3 is connected to the pipe joint 31, and the outer end of the vacuum pipe 3 is connected to the vacuum joint 4. At the same time, the pipe joint 31 is connected to the suction port of the vacuum pump 21 through the connecting pipe 32. Therefore, the vacuum pipe 3 can be connected to the vacuum pump 21 through the pipe joint 31 and the connecting pipe 32 to realize the vacuum-pumping function.

[0066] Referring to Figures 9 to 11 , in combination with Figure 4 and Figure 5 , the driving motor 6 is arranged in the mounting box 12, and the output end of the driving motor 6 is provided with a driving gear 61. The driving gear 61 is used to be in driving meshing connection with the gear ring 54 on the coil wheel 5, so that the driving motor 6 can drive the coil wheel 5 to rotate, so that the coil wheel 5 can actively wind the vacuum pipe 3, and thus the vacuum pipe 3 can be actively wound around the coil wheel 5 and stored in the mounting box 12 when the vacuum-pumping is not needed, so as to be conveniently stored.

[0067] Referring to Figure 3 , in some embodiments, the panel 112 is provided with a control button 113. The control button 113 can be used to drive the driving motor 6 to work, so as to drive the coil wheel 5 to rotate, so that the coil wheel 5 can actively wind the vacuum pipe 3 to realize the pipe-winding function.

[0068] It should be noted that the control button 113 can be a mechanical button, which is exposed to the panel 112. The control button 113 can also be a touch screen button, which can be integrated on the panel 112.

[0069] In some embodiments, the control button 113 is provided with a plurality of control buttons 113, and the functions of the plurality of control buttons 113 can be different. For example, some control buttons 113 are used to control the driving motor 6 to realize the pipe-winding function, and some control buttons 113 are used to control the vacuum-pumping device 2 to realize the vacuum-pumping function, and so on.

[0070] Referring to Figures 4 to 11 , the clutch device 7 is arranged between the driving gear 61 of the driving motor 6 and the gear ring 54 of the coil wheel 5, and the clutch device 7 is used to engage or disconnect the driving connection between the driving gear 61 and the gear ring 54.

[0071] Specifically, when the clutch device 7 is turned on, the driving gear 61 can be in driving connection with the gear ring 54 through the clutch device 7. At this time, the driving motor 6 can drive the coil wheel 5 to rotate in the opposite direction through the driving gear 61, the clutch device 7 and the gear ring 54, so that the vacuum pipe 3 is actively wound around the coil wheel 5.

[0072] When the clutch device 7 is closed, the transmission connection between the driving gear 61 and the gear ring 54 is disconnected, that is, the gear ring 54 can rotate freely relative to the driving gear 61; at this time, the vacuum connector 4 can pull out the vacuum pipeline 3 from the mounting box 12, and the vacuum pipeline 3 is unwound on the coil wheel 5. The coil wheel 5 and the gear ring 54 rotate under the driving of the vacuum pipeline 3. Because the transmission connection between the driving gear 61 and the gear ring 54 is disconnected, the rotation of the coil wheel 5 and the gear ring 54 will not drive the driving gear 61 to rotate, so the driving motor 6 will not be forced, and the working performance of the driving motor 6 will not be affected.

[0073] Please refer to Figures 4 to 11 In some embodiments, the clutch device 7 includes an electromagnet 71, a first transmission gear 72, a second transmission gear 73, a third transmission gear 74, a friction plate 75, and a transmission shaft 76.

[0074] The electromagnet 71 is arranged in the mounting space. The first transmission gear 72 is rotatably arranged on the electromagnet 71, and the first transmission gear 72 is in meshing transmission connection with the driving gear 61, that is, the driving motor 6 can drive the first transmission gear 72 to rotate through the driving gear 61.

[0075] The second transmission gear 73 is rotatably arranged on the electromagnet 71 and coaxially arranged with the first transmission gear 72. At the same time, the third transmission gear 74 is rotatably arranged in the mounting space and arranged between the second transmission gear 73 and the gear ring 54 of the coil wheel 5. Because the second transmission gear 73 is in meshing transmission connection with the third transmission gear 74, and the third transmission gear 74 is in meshing transmission connection with the gear ring 54, the second transmission gear 73 can be in meshing transmission connection with the gear ring 54, so that the second transmission gear 73 can drive the third transmission gear 74 to rotate, and in turn drive the gear ring 54 to rotate, realizing the active rotation of the coil wheel 5. The third transmission gear 74 is arranged between the second transmission gear 73 and the gear ring 54, which is conducive to increasing the interval between the clutch device 7 and the coil wheel 5, and avoiding the mutual interference between the clutch device 7 and the coil wheel 5.

[0076] It should be noted that in some embodiments, the third transmission gear 74 can not be arranged between the second transmission gear 73 and the gear ring 54, and the second transmission gear 73 can be directly in meshing transmission connection with the gear ring 54, which can also realize the active rotation of the coil wheel 5 driven by the second transmission gear 73.

[0077] The specific working principle of the clutch device 7 is as follows: When the electromagnet 71 is energized, the first transmission gear 72 and the second transmission gear 73 are attracted to each other and can rotate synchronously. Therefore, when the drive motor 6 drives the first transmission gear 72 to rotate through the drive gear 61, it can synchronously drive the second transmission gear 73 to rotate, and then drive the coil wheel 5 to rotate through the third transmission gear 74 and the gear ring 54. When the electromagnet 71 is de-energized, the first transmission gear 72 and the second transmission gear 73 are separated and can rotate relatively freely. Therefore, when the drive motor 6 drives the first transmission gear 72 to rotate through the drive gear 61, it cannot drive the second transmission gear 73 to rotate synchronously. Similarly, when the electromagnet 71 is de-energized, the rotation of the coil wheel 5 can drive the third transmission gear 74 and the second transmission gear 73 to rotate synchronously, but it will not drive the first transmission gear 72 to rotate. Therefore, the drive motor 6 will not be subjected to force, that is, it will not affect the operation of the drive motor 6.

[0078] Please see Figure 7 and Figure 8 and combined Figure 11 The friction plate 75 is disposed between the first transmission gear 72 and the second transmission gear 73, and the friction plate 75 is disposed on the side of the first transmission gear 72 facing the second transmission gear 73. The friction plate 75 and the second transmission gear 73 are connected as one unit, that is, the friction plate 75 and the second transmission gear 73 rotate synchronously.

[0079] In some embodiments, the friction plate 75 may be made of a magnetic material. When the electromagnet 71 is energized, the electromagnet 71 generates magnetism and attracts the friction plate 75. This attraction can cause the first transmission gear 72 and the second transmission gear 73 to engage with each other, thereby causing the first transmission gear 72, the friction plate 75 and the second transmission gear 73 to rotate synchronously.

[0080] In some other embodiments, the friction plate 75 may not be made of magnetic material, and the second transmission gear 73 may be made of magnetic material. When the electromagnet 71 is energized, the electromagnet 71 generates magnetism and attracts the second transmission gear 73, causing the first transmission gear 72 and the second transmission gear 73 to engage with each other. The friction plate 75 is used to increase the friction between the first transmission gear 72 and the second transmission gear 73, thereby achieving synchronous rotation of the first transmission gear 72, the friction plate 75, and the second transmission gear 73.

[0081] Please see Figure 7 and Figure 8 and combined Figure 11A drive shaft 76 is rotatably mounted on an electromagnet 71 and located at the axis of the electromagnet 71. A first drive gear 72 is rotatably mounted on the drive shaft 76. A second drive gear 73 and a friction plate 75 are mounted on the drive shaft 76 and rotate synchronously with it. When the electromagnet 71 is energized, the first drive gear 72, the friction plate 75, and the second drive gear 73 are attracted together and rotate synchronously around the drive shaft 76, improving rotational stability. When the electromagnet 71 is de-energized, the first drive gear 72 separates from the friction plate 75 and the second drive gear 73. The friction plate 75 and the second drive gear 73 rotate around the drive shaft 76 and rotate freely relative to the first drive gear 72.

[0082] Please see Figure 4 and Figure 5 In some embodiments, the mounting box 12 is recessed to provide a second mounting position 124; the electromagnet 71, the first transmission gear 72 and the second transmission gear 73 are coaxially disposed at the second mounting position 124.

[0083] Please refer to Figure 4 and Figure 5 In some embodiments, the clutch device 7 further includes a cover 77, which is fixed within the mounting space. The cover 77 covers the electromagnet 71 and is used to limit and fix the electromagnet 71, the first transmission gear 72, and the second transmission gear 73 on the second mounting position 124, so that when the electromagnet 71 is energized, the first transmission gear 72 and the second transmission gear 73 can rotate stably and synchronously.

[0084] The working principle of the vacuum module is as follows: when the user needs to vacuum, he / she directly pulls the vacuum connector 4. At this time, the clutch device 7 is not energized. The vacuum line 3 drives the coil wheel 5 to rotate. The coil wheel 5 drives the second transmission gear 73 of the clutch device 7 to rotate through the gear ring 54. However, since the clutch device 7 is not energized, the second transmission gear 73 is in a disengaged state from the first transmission gear 72. The second transmission gear 73 can rotate freely, while the first transmission gear 72 does not move. The drive motor 6 is not subjected to force, so the working state of the drive motor 6 is not affected.

[0085] When the vacuuming process is finished, the vacuum line 3 needs to be retrieved. Simply operate the control button 113 corresponding to the retrieval function facing upwards, which will simultaneously power the clutch device 7 and the drive motor 6. The clutch device 7 will cause the first transmission gear 72 and the second transmission gear 73 to engage and rotate synchronously. At this time, the drive motor 6 rotates, and the rotation is transmitted to the coil wheel 5 through the drive gear 61, the first transmission gear 72, the second transmission gear 73, the third transmission gear 74 and the gear ring 54, thereby driving the coil wheel 5 to rotate and realizing the retrieval function of the vacuum line 3.

[0086] Based on the above technical solution, the embodiments of the present invention have at least the following advantages and positive effects:

[0087] In the refrigeration equipment of this invention embodiment, the mounting box 12 is provided in the door 11 or the box 1 to provide installation space, and the vacuum line 3, vacuum connector 4 and vacuum pumping device 2 are used to achieve the vacuum pumping function; the vacuum line 3 can be wound on the coil 5 provided in the installation space.

[0088] When it is necessary to perform a vacuuming operation on the sealed container outside the door 11, the vacuum connector 4 and the vacuum line 3 drive the coil wheel 5 to rotate, which can pull the vacuum line 3 out of the installation space to perform vacuuming.

[0089] After the vacuuming operation is completed, the drive motor 6 and drive wheel are used in conjunction with the clutch device 7 in the open state to make the drive gear 61 drive the gear ring 54 on the coil wheel 5, thereby controlling the coil wheel 5 to rotate in the opposite direction so that the vacuum line 3 is rewound on the coil wheel 5.

[0090] Meanwhile, as the vacuum line 3 extends out of the installation space, the clutch device 7 is in the closed state, allowing the gear ring 54 to rotate freely relative to the drive gear 61, thus ensuring that the drive motor 6 and the drive gear 61 are not affected. Its operation is simple and storage is convenient, improving the ease of vacuum preservation for users.

[0091] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A refrigeration appliance characterized in that, The application relates to a refrigeration device, which comprises a box body, a door body arranged on the front side of the box body, a mounting box arranged in the door body or the box body, an installation space formed in the mounting box, a coil wheel rotatably arranged in the installation space, a circumferential gear ring arranged on the outer circumferential wall of the coil wheel, a vacuum pipe wound on the coil wheel, a vacuum joint arranged at one end of the vacuum pipe, a vacuumizing device connected with the other end of the vacuum pipe and used for vacuumizing, a driving motor arranged in the installation space, an output end of the driving motor being provided with a driving gear, a clutch device arranged between the driving gear and the gear ring, wherein when the clutch device is opened, the driving gear is in transmission connection with the gear ring through the clutch device; when the clutch device is closed, the gear ring can freely rotate relative to the driving gear. The clutch device comprises an electromagnet arranged in the installation space, a first transmission gear rotatably arranged on the electromagnet and in meshing transmission connection with the driving gear, a second transmission gear rotatably arranged on the electromagnet and coaxially arranged with the first transmission gear, the second transmission gear being in meshing transmission connection with the gear ring, and a friction plate arranged on the side of the first transmission gear facing the second transmission gear. When the electromagnet is electrified, the friction plate can be attracted to the electromagnet, so that the first transmission gear and the second transmission gear are attracted to each other and can synchronously rotate; when the electromagnet is de-energized, the first transmission gear and the second transmission gear are separated from each other and can freely rotate relative to each other. The clutch device further comprises a transmission shaft rotatably arranged on the electromagnet, the first transmission gear is rotatably sleeved on the transmission shaft, the second transmission gear and the friction plate are sleeved on the transmission shaft and synchronously rotate with the transmission shaft. The clutch device further comprises a third transmission gear arranged between the second transmission gear and the gear ring and in meshing connection with the second transmission gear and the gear ring respectively. The mounting box is recessed with a mounting position, the electromagnet, the first transmission gear and the second transmission gear are coaxially arranged at the mounting position, the clutch device further comprises a cover body fixedly arranged in the installation space and limiting and fixing the electromagnet, the first transmission gear and the second transmission gear on the mounting position. The refrigeration device further comprises a pipe joint and a connecting pipe, the pipe joint is arranged at the shaft center of the coil wheel, the inner end of the vacuum pipe is communicated with the pipe joint, the outer end of the vacuum pipe is communicated with the vacuum joint, one end of the connecting pipe is connected with the pipe joint, and the other end of the connecting pipe is connected with the vacuumizing device. The refrigeration device further comprises a cover plate, the mounting box is recessed with a mounting groove, the shape of the mounting groove is matched with the profile of the coil wheel, and the coil wheel is rotatably arranged in the mounting groove. ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The refrigeration appliance of claim 1, wherein, ​ ​ ​ 3. The refrigeration appliance of claim 1, wherein, ​ ​ 4. The refrigeration appliance of claim 1, wherein, ​ ​ 5. The refrigeration appliance of claim 1, wherein, ​ ​ ​ 6. The refrigeration appliance of claim 5, wherein, ​ ​ The cover plate covers the mounting groove to cover the coil wheel in the mounting groove; The pipe joint is arranged at the center of the cover plate and at least partially exposed outside the cover plate.

7. The refrigeration appliance of claim 1, wherein, An open slot is arranged on the front side of the door body, and the mounting box is arranged in the open slot; A panel is arranged at the slot opening of the open slot, the panel covers the front side of the mounting box and encapsulates the mounting box in the open slot, and the panel partially or entirely covers the open slot.

8. The refrigeration appliance of claim 7, wherein, A fitting slot is concavely arranged on the outer peripheral wall of the mounting box, the vacuum joint is arranged outside the mounting box, the vacuum joint is partially or entirely accommodated in the fitting slot, and the vacuum joint is exposed outside the panel.

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