WO2021057767A1 - 具有可调节搁物架组件的制冷电器 - Google Patents

具有可调节搁物架组件的制冷电器 Download PDF

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Publication number
WO2021057767A1
WO2021057767A1 PCT/CN2020/117034 CN2020117034W WO2021057767A1 WO 2021057767 A1 WO2021057767 A1 WO 2021057767A1 CN 2020117034 W CN2020117034 W CN 2020117034W WO 2021057767 A1 WO2021057767 A1 WO 2021057767A1
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WO
WIPO (PCT)
Prior art keywords
nut
lead screw
locking plunger
refrigeration appliance
shelf
Prior art date
Application number
PCT/CN2020/117034
Other languages
English (en)
French (fr)
Inventor
奥尔盖尔布莱恩
凯里亚库斯蒂芬诺斯
亨特马修
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
海尔美国电器解决方案有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔电冰箱有限公司, 海尔智家股份有限公司, 海尔美国电器解决方案有限公司 filed Critical 青岛海尔电冰箱有限公司
Priority to CN202080017033.0A priority Critical patent/CN113574339B/zh
Priority to EP20867363.2A priority patent/EP4036502A4/en
Publication of WO2021057767A1 publication Critical patent/WO2021057767A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B57/00—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions
    • A47B57/06—Cabinets, racks or shelf units, characterised by features for adjusting shelves or partitions with means for adjusting the height of the shelves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/04—Charging, supporting, and discharging the articles to be cooled by conveyors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B51/00—Cabinets with means for moving compartments up and down

Definitions

  • the present invention generally relates to a refrigeration appliance with an adjustable shelf assembly.
  • Refrigeration appliances generally include a box that defines a refrigerated compartment for receiving food for storage.
  • the refrigeration appliance may also include various internal storage components installed in the refrigeration room and designed to facilitate the storage of food therein.
  • Such storage components include storage racks, storage boxes, shelves and/or drawers that receive food in the refrigeration room and assist in organizing and arranging these foods.
  • Some conventional refrigeration appliances include adjustable shelves, which can be moved from one shelf installation position to another shelf installation position in the refrigeration appliance. In this way, the setting of the shelves in the refrigerator can be selected to suit the needs of the user.
  • Known refrigeration appliances include a grooved track installed on the rear wall of the appliance.
  • the shelf with the mounting support engages with the groove in the grooved rail so that the user can manually remove and reset the shelf.
  • the movement of such shelves is labor-intensive and time-consuming. In particular, the user must remove all items on the shelf, remove the shelf from the slotted track, and reset the shelf before returning the removed items.
  • a refrigeration appliance in an exemplary embodiment, includes a box body and a shelf assembly.
  • the shelf assembly includes a lead screw which is mounted to the box body so that the lead screw is rotatable.
  • the shelf bracket is installed to the box body so that the shelf bracket can be translated relative to the lead screw.
  • the shelf bracket has a housing.
  • the nut is arranged in the shell of the shelf bracket and screwed on the lead screw.
  • the nut has a plurality of teeth on its outer surface.
  • the locking plunger has at least one tooth.
  • the actuator is coupled to the locking plunger. The actuator is operable to selectively engage at least one tooth of the locking plunger with a plurality of teeth of the nut.
  • the shelf assembly further includes a motor coupled to the lead screw, and the motor is operable to rotate the lead screw.
  • the motor when the motor is operated to rotate the lead screw and the actuator does not cause the at least one tooth of the locking plunger to mesh with the plurality of teeth of the nut, the The nut is fixed with respect to the screw, and when the motor is operated to rotate the screw and the actuator causes the at least one tooth of the locking plunger to interact with the plurality of teeth of the nut When engaged, the nut rotates relative to the lead screw.
  • the actuator is a solenoid.
  • the refrigeration appliance further includes a bearing assembly disposed between the top of the nut and the housing of the shelf bracket, wherein the lead screw extends through the bearing assembly .
  • the bearing assembly includes:
  • a first gasket which is arranged on the housing
  • a second washer which is arranged on the nut
  • a plurality of bearings are arranged between the first washer and the second washer and straddle the first washer and the second washer.
  • the plurality of bearings are a plurality of roller bearings.
  • the locking plunger is pivotally mounted to the housing.
  • the locking plunger has a first end and a second end, and the locking plunger pivots between the first end and the second end of the locking plunger.
  • the at least one tooth of the locking plunger is provided at the first end of the locking plunger, and the locking plunger is at the first end of the locking plunger The two ends are coupled to the actuator.
  • the actuator is a solenoid having a plunger and a housing, and one of the plunger and the housing of the solenoid is provided at the second of the locking plunger. At and connected to the end, and the other of the plunger and the housing of the solenoid is provided at and connected to the housing.
  • the nut defines an internal thread surface, and at least a part of the internal thread surface of the nut forms a direct interference thread with the screw.
  • the nut includes at least one nylon seal contacting the lead screw.
  • the shelf assembly further includes a panel installed on the shelf bracket.
  • a refrigerating appliance in another exemplary embodiment, includes a box body and a shelf assembly.
  • the shelf assembly includes a lead screw which is mounted to the box body so that the lead screw is rotatable.
  • the first shelf bracket is installed to the box body so that the first shelf bracket can be translated relative to the lead screw.
  • the first shelf bracket has a first housing.
  • the first nut is arranged in the first housing and is screwed on the screw.
  • the first nut has a plurality of teeth on its outer surface.
  • the first locking plunger has at least one tooth.
  • the first actuator is coupled to the first locking plunger. The first actuator is operable to selectively engage at least one tooth of the first locking plunger with a plurality of teeth of the first nut.
  • the second shelf bracket is installed to the box body so that the second shelf bracket can be translated relative to the lead screw.
  • the second shelf bracket has a second housing.
  • the second shelf bracket is separated from the first shelf bracket on the box body.
  • the second nut is arranged in the second housing and is screwed on the lead screw.
  • the second nut has a plurality of teeth on its outer surface.
  • the second locking plunger has at least one tooth.
  • the second actuator is coupled to the second locking plunger. The second actuator is operable to selectively engage at least one tooth of the second locking plunger with a plurality of teeth of the second nut.
  • the shelf assembly further includes a motor coupled to the lead screw, and the motor is operable to rotate the lead screw.
  • the motor when the motor is operated to rotate the lead screw and the first actuator does not cause the at least one tooth of the first locking plunger to interact with the plurality of teeth of the first nut
  • the first nut is fixed relative to the lead screw
  • the motor when the motor is operated to rotate the lead screw and the first actuator causes the at least one of the first locking plunger When one tooth meshes with the plurality of teeth of the first nut, the first nut rotates relative to the lead screw.
  • the refrigeration appliance further includes:
  • a first bearing assembly which is disposed between the top of the first nut and the first housing;
  • a second bearing assembly which is arranged between the top of the second nut and the second housing,
  • the lead screw extends through the first bearing assembly and the second bearing assembly.
  • the first bearing assembly includes:
  • a first gasket which is arranged on the first housing
  • a second washer arranged on the first nut
  • a plurality of bearings are arranged between the first washer and the second washer and straddle the first washer and the second washer.
  • the first nut defines an internal thread surface, and at least a part of the internal thread surface of the first nut forms a thread that directly interferes with the lead screw.
  • the first nut includes at least one nylon seal contacting the lead screw
  • Fig. 1 is a front perspective view of a refrigeration appliance according to an exemplary embodiment
  • FIG. 2 and 3 are partial perspective views of the shelf assembly of the exemplary refrigeration appliance of FIG. 1;
  • Figure 4 is a perspective view of the clutch and lead screw of the shelf assembly of Figure 3;
  • Figure 5 is an elevation view of the clutch of Figure 4 disposed in the housing of the shelf assembly
  • Figure 6 is a partial elevational view of the clutch of Figure 5;
  • Figure 7 is an elevation view of the nut of the clutch of Figure 5, the nut having a direct interference thread
  • Fig. 8 is an elevation view of a nut with a nylon seal according to another exemplary embodiment.
  • Fig. 1 provides a front view of a representative refrigeration appliance 10 according to an exemplary embodiment of the present invention. More specifically, for illustrative purposes, the present invention is described in the context of a refrigeration appliance 10 having the configuration shown and further described below.
  • refrigeration appliances include appliances such as refrigeration/freezing combination, side-by-side, bottom-mounted, compact, and any other styles or models of refrigeration appliances. Therefore, other configurations including multiple and different styles of compartments can be used with the refrigerating appliance 10, and it should be understood that the configuration shown in FIG. 1 is provided by way of example only.
  • the refrigerating appliance 10 includes a food preservation compartment 12 and a freezing compartment 14.
  • the freezer compartment 14 and the food preservation compartment 12 are arranged side by side in the housing 16 and are defined by the inner linings 18 and 20 therein.
  • the space between the outer shell 16 and the inner bladder 18 and 20 and between the inner bladder 18 and the inner bladder 20 may be filled with an in-situ foamed insulation material.
  • the housing 16 is generally formed by folding a suitable material sheet, such as a pre-painted steel plate, into an inverted U shape to form the top wall and side walls of the housing 16.
  • the bottom wall of the housing 16 is usually formed separately, and is attached to the side wall of the housing and the bottom frame that provides support for the refrigerating appliance 10.
  • the inner tanks 18 and 20 are molded from a suitable plastic material to form the freezing compartment 14 and the food preservation compartment 12, respectively.
  • the inner container 18, 20 may be formed by bending and welding a suitable metal sheet such as steel.
  • the outer shell 16 and the inner tanks 18 and 20 can jointly form a shell or shell of the refrigerating appliance 10.
  • the buffer strip 22 extends between the front flange of the outer shell and the outer front edges of the inner linings 18 and 20.
  • the cushion strip 22 is formed of a suitable elastic material, such as extruded acrylonitrile-butadiene-styrene based material (commonly referred to as ABS).
  • ABS extruded acrylonitrile-butadiene-styrene based material
  • the insulating material in the space between the inner tanks 18, 20 is covered by another suitable elastic material strip, which is also commonly referred to as the center beam 24.
  • the center beam 24 is formed of extruded ABS material.
  • the bumper bar 22 and the center beam 24 form a front surface, and completely surround the inner peripheral edge of the outer shell 16 and extend vertically between the inner tanks 18 and 20.
  • the center beam 24, the insulating material between the compartments, and the partition wall of the inner liner of the compartment are sometimes collectively referred to as the center beam wall 26 herein.
  • the refrigerating appliance 10 includes a shelf 28 and a sliding-out storage drawer 30, sometimes called a storage tray, which is usually arranged in the food preservation compartment 12 to support the items stored therein.
  • the refrigeration appliance 10 can be controlled by one or more controllers 11 or other processing devices.
  • the controller 11 may include one or more storage devices (for example, non-removable memory) and one or more microprocessors, such as general-purpose or special-purpose microprocessors, which are operable to perform operations with the refrigeration appliance 10 Associated programming instructions or micro-control codes.
  • the memory may mean random access memory such as DRAM or read-only memory such as ROM or FLASH.
  • the processor executes programming instructions stored in the memory.
  • the memory may be a separate component from the processor, or may be included on a board within the processor.
  • the controller 11 may include one or more proportional integral (“PI") controllers that are programmed, equipped, or used to operate the refrigeration appliance according to various control methods. Therefore, as used herein, "controller” includes both singular and plural forms.
  • PI proportional integral
  • the controller 11 can be arranged in various positions in the actual refrigeration appliance 10.
  • the controller 11 may be located behind the interface panel 32 or the door 42 or 44, for example.
  • I/O Input/output
  • signals may be routed between the control system of the refrigeration appliance 10 and various operating components along wiring harnesses, which may be routed through the rear, side, or middle beam 26, for example.
  • the user interface panel 32 may represent a general purpose I/O ("GPIO") device or functional block.
  • the user interface panel 32 may include input components, such as one or more of various electrical, mechanical, or electromechanical input devices including rotary dials, buttons, and touch pads.
  • the user interface panel 32 may include display components, such as a digital or analog display device designed to provide operational feedback to the user.
  • the user interface panel 32 may communicate with the controller 11 via one or more signal lines or a shared communication bus.
  • one or more temperature sensors are provided to sense the temperature in the food preservation compartment 12 and the temperature in the freezer compartment 14.
  • the first temperature sensor 52 may be arranged in the fresh food compartment 12 and may sense the temperature in the fresh food compartment 12.
  • the second temperature sensor 54 may be arranged in the freezing compartment 14 and may sense the temperature in the freezing compartment 14.
  • the temperature information may be provided (for example, to the controller 11 for use in operating the refrigerator 10). These temperature sensing can be performed intermittently or continuously during the operation of the electrical appliance or the execution of the control system.
  • the shelf 34 and the metal basket 36 may be provided in the freezer compartment 14. Additionally or alternatively, an ice maker 38 may be provided in the freezing compartment 14.
  • the freezer door 42 and the food preservation door 44 respectively close the entrances to the freezer compartment 14 and the food preservation compartment 12. Each door 42, 44 is installed to rotate around its outer vertical edge between an open position as shown in FIG. 1 and a closed position (not shown) that closes the associated storage compartment. In alternative embodiments, one or both of the doors 42, 44 may be slidable, or may be moved between an open position and a closed position in other ways.
  • the freezer door 42 includes a plurality of storage shelves 46
  • the food preservation door 44 includes a plurality of storage shelves 48.
  • FIGS. 2 and 3 are partial perspective views of the shelf assembly 100 of the refrigerating appliance 10.
  • the shelf assembly 100 may be used in any suitable appliance.
  • the shelf assembly 100 may be used for top-mounted refrigerator appliances, bottom-mounted refrigerator appliances, independent refrigerating appliances, and the like.
  • the shelf assembly 100 includes features for motorized movement of the shelf 110 such as the shelf 28.
  • the shelf assembly 100 is operable to selectively move one or more shelf 110 using a single motor.
  • the shelf assembly 100 with the cover 102 is shown.
  • the cover 102 may face, for example, the food preservation compartment 12 and may form a part of the inner container 18.
  • the cover 102 can cover various internal components of the shelf assembly 100, as shown in FIG. 2, where the cover 102 is removed.
  • the motorized parts of the shelf assembly 100 may be hidden behind the cover 102 to improve the appearance of the shelf assembly 100.
  • the rack assembly 100 includes a plurality of racks 110.
  • the shelf 110 can move along the vertical direction V in the food preservation compartment 12.
  • the shelf assembly 100 further includes a lead screw 120.
  • the screw 120 is installed in the food preservation compartment 12 so that the screw 120 can rotate.
  • the shelf assembly 100 may include a motor 130 (schematically shown in FIG. 2) coupled to the lead screw 120, and the motor 130 can operatively rotate the lead screw 120.
  • the motor 130 may be provided on the top or bottom of the lead screw 120. By rotating the screw 120, the motor 130 can move one or more racks 110 in the food preservation compartment 12 along the vertical direction V, for example.
  • Each shelf 110 may include a shelf bracket or bracket 112.
  • the shelf bracket 112 may be installed on a rail 114, for example, the rail restricts the movement of the shelf bracket 112 along the vertical direction V. As shown in FIG. Thus, the shelf bracket 112 can be translated along the vertical direction V in the food preservation compartment 12 (or the freezer compartment 14 in an alternative exemplary embodiment).
  • Each shelf 110 may further include a panel 116 provided on the shelf bracket 112. The panel 116 may be removed from the shelf bracket 112, for example, to facilitate cleaning of the panel 116. Various foods can be stored on the panel 116.
  • each shelf 110 includes two shelf brackets 112.
  • each shelf 110 may include one, three or more shelf brackets 112.
  • the shelf assembly 100 also includes a plurality of clutches 140.
  • Each clutch 140 may be installed to the corresponding shelf bracket 112.
  • Each clutch 140 can also be selectively opened and closed to connect the corresponding shelf bracket 112 to the lead screw 120.
  • the clutch 140 is closed, the corresponding shelf bracket 112 is coupled to the lead screw 120 such that the rotation of the lead screw 120 by the motor 130 moves the corresponding shelf bracket 112 in the vertical direction V.
  • the clutch 140 is opened, the corresponding shelf bracket 112 is disconnected from the lead screw 120, so that the rotation of the lead screw 120 by the motor 130 does not cause the corresponding shelf bracket 112 to move along the vertical direction V.
  • the clutch 140 can adjust the vertical movement of the shelf 110.
  • the shelf assembly 100 includes three shelf 110. It should be understood that this is provided by way of example only.
  • the shelf assembly 100 may include one, two, four or more shelf 110.
  • One, two, or all three clutches 140 in FIG. 2 may be closed to move the corresponding shelf bracket 112 in the vertical direction V by rotating the screw 120 with the motor 130.
  • one, two, or all three clutches 140 in FIG. 2 can be opened to keep the corresponding shelf bracket 112 in a fixed position along the vertical direction V, regardless of the rotation of the screw 120 with the motor 130 how is it.
  • by selectively closing the corresponding clutch 140 one, two, or all three racks 110 can be moved vertically with the motor 130.
  • FIG. 4 is a perspective view of the clutch 140 and the lead screw 120.
  • FIG. 5 is an elevation view of the clutch 140.
  • FIG. 6 is a partial elevation view of the clutch 140.
  • the shelf bracket 112 includes a housing 118. When the panel 116 is disposed on the shelf bracket 112, the housing 118 can be fixed with respect to the panel 116.
  • the housing 118 contains various components of the clutch 140, as discussed in more detail below.
  • the clutch 140 includes a nut 150, a bearing assembly 160, a locking plunger 170 and an actuator 180.
  • the nut 150 is arranged in the housing 118 and is screwed on the screw 120.
  • the internal thread surface of the nut 150 can be engaged with the external thread surface of the screw 120.
  • the nut 150 has a plurality of teeth 152 at the outer surface 154 of the nut 150.
  • the teeth 152 may be distributed circumferentially on the outer surface 154 of the nut 150 and/or may extend axially along the outer surface 154 of the nut 150.
  • the bearing assembly 160 is disposed between the top 156 of the nut 150 and the housing 118.
  • the bearing assembly 160 may be provided in the housing 118 and may extend between the nut 150 and the housing 118.
  • the lead screw 120 may extend through the bearing assembly 160 within the housing 118, for example.
  • the bearing assembly 160 assists in allowing the nut 150 to rotate within the housing 118.
  • the bearing assembly 160 may include a first washer 162, a second washer 164, and a plurality of bearings 166.
  • the first washer 162 is provided on or against the housing 118
  • the second washer 164 is provided on or against the nut 150.
  • the bearing 166 is disposed between the first washer 162 and the second washer 164 and straddles the two washers.
  • the bearing 166 can roll on the first washer 162 and the second washer 164 to facilitate the rotation of the nut 150 relative to the housing 118.
  • the bearing 166 may be a roller bearing, and may be connected to another bearing with a race.
  • the bearing 166 may also be circumferentially distributed between the first washer 162 and the second washer 164 around the lead screw 120.
  • the locking plunger 170 has at least one tooth 172, for example, the tooth is the complement of the tooth 152 of the nut 150, and the actuator 180 is coupled to the locking plunger 170.
  • the actuator 180 is operable to selectively engage at least one tooth 172 of the locking plunger 170 with the tooth 152 of the nut 150.
  • the locking plunger 170 can be pivotally mounted to the housing 118, and the actuator 180 can pivot the locking plunger 170 on the housing 118 so that at least one tooth 172 of the locking plunger 170 is connected to the nut 150.
  • the teeth 152 are selectively meshed.
  • the locking plunger 170 may have a first end 174 and a second end 174, and the locking plunger 170 may be pivotally mounted to the housing between the first end 174 and the second end 176 of the locking plunger 170 118. At least one tooth 172 of the locking plunger 170 may be provided at the first end 174 of the locking plunger 170, and the locking plunger 170 may be coupled to the actuator 180 at the second end 176 of the locking plunger 170.
  • the locking plunger 170 may have an L shape between the first end 174 and the second end 176 of the locking plunger 170.
  • the actuator 180 may be a solenoid, such as a direct current push-pull solenoid.
  • the actuator 180 may have the plunger 182 and the housing 184.
  • One of the plunger 182 and the housing 184 of the solenoid 180 may be provided at and connected to the second end 176 of the locking plunger 170, and the other of the plunger 182 and the housing 184 of the solenoid 180 may be provided at And connected to the housing 118.
  • the actuator 180 may be a shape memory alloy, a linear actuator, or the like.
  • the rotation of the nut 150 relative to the screw 120 can be adjusted.
  • the actuator 180 does not engage at least one tooth 172 of the locking plunger 170 with the tooth 152 of the nut 150
  • the nut 150 may be fixed with respect to the lead screw 120.
  • the motor 130 rotates the screw 120
  • the nut 150 can rotate together with the screw 120, so that the position of the shelf bracket 112 in the vertical direction V does not change (or does not substantially change), even though the screw 120 Rotates together with the motor 130.
  • the nut 150 can rotate relative to the lead screw 120.
  • the motor 130 rotates the screw 120
  • the nut 150 can rotate relative to the screw 120, so that the position of the shelf bracket 112 along the vertical direction V is changed due to the rotation of the screw 120.
  • the clutch 140 can adjust the vertical movement of the shelf 110.
  • the shelf assembly 100 can advantageously provide a fully adjustable automatic height control for the shelf 110 in the refrigeration appliance 10.
  • the shelf assembly 100 utilizes the clutch 140 to couple the corresponding shelf 110 to the lead screw 120.
  • the actuator 180 may engage at least one tooth 172 of the locking plunger 170 with the tooth 152 of the nut 150 so as to prevent the nut 150 from rotating.
  • the nut 150 is driven up or down on the screw 120, which forces the engaged shelf 110 up or down according to the rotation direction of the screw 120. All shelves 110 that are not engaged by the nut 150 during the rotation of the lead screw 120 remain upright in position. Since the weight of the shelf 110 rests on the bearing assembly 160, the shelf 110 will not move vertically.
  • the bearing assembly transmits the weight to the nut 150. Therefore, due to the gap between the nut 150 and the screw 120 The friction in the threaded coupling is greater than the friction in the bearing assembly 160 to allow the nut 150 and the screw 120 to rotate correspondingly.
  • the clutch 140 may also include additional features for preventing the nut 150 from rotating on the screw 120 when the actuator 180 does not engage the at least one tooth 172 of the locking plunger 170 with the tooth 152 of the nut 150.
  • the nut 150 may include a direct interference thread 158 on at least a part of the threaded coupling between the nut 150 and the lead screw 120.
  • the direct interference thread 158 forms a slight interference fit between the nut 150 and the screw 120. For example, due to the excessive root diameter of the screw 120 relative to the nut 150, when the actuator 180 does not lock at least the plunger 170 When a tooth 172 meshes with the tooth 152 of the nut 150, the interference fit prevents the nut 150 from rotating on the screw 120.
  • the nut 150 may include a nylon seal 159 that contacts the lead screw 120, such as a Nyloc suction ring.
  • the nut 150 may include resistance-inducing components, such as additional plastic threads, anti-rocket suction rings, etc., to further bias the disengaged nut 150 to rotate with the lead screw 120.

Abstract

一种具有可调节搁物架组件的制冷电器（10），该制冷电器（10）包括箱体和搁物架组件（100），该搁物架组件（100）包括丝杠（120），该丝杠（120）安装到箱体，使得丝杠（120）是可旋转的；搁物架支架（112）安装到箱体，使得搁物架支架（112）可相对于丝杠（120）平移，搁物架支架（112）具有壳体（118）；螺母（150）布置在搁物架支架（112）的壳体（118）内并旋在丝杠（120）上，螺母（150）在其外表面上具有多个齿（152）；锁定柱塞（170）具有至少一个齿（172），致动器（180）联接到锁定柱塞（170），致动器（180）可操作为选择性地使锁定柱塞（170）的至少一个齿（172）与螺母（150）的多个齿（152）啮合。由此，可以调节搁物架支架（112）的竖直移动。

Description

具有可调节搁物架组件的制冷电器 技术领域
本发明总体涉及一种具有可调节搁物架组件的制冷电器。
背景技术
制冷电器通常包括箱体，该箱体限定用于接收食品以便储存的制冷间室。制冷电器还可以包括安装在制冷间室内并且设计成便于在其中储存食品的各种内部储存部件。这种储存部件包括在制冷间室内接收食品并且辅助组织和布置这些食品的储物架、储物盒、搁物架和/或抽屉。某些常规的制冷电器包括可调节搁物架，这些搁物架可以在制冷电器内从一个搁物架安装位置移动到另一个搁物架安装位置。这样，冰箱内的搁物架的设置可被选择以适合用户的需要。
已知的制冷电器包括安装在电器后壁上的有槽轨道。具有安装支撑件的搁物架与有槽轨道中的凹槽接合，使得用户可以手动地去除和重新设置搁物架。然而，这种搁物架的移动是劳动密集型的并且耗时。特别地，用户必须去除搁物架上的所有物品，将搁物架从有槽轨道取出，并且在返回所去除的物品之前重新设置搁物架。
发明内容
本发明的各个方面以及优点将会在下文的描述中进行阐述，或者是通过描述可以显而易见的，或者是可以通过实施本发明而学到。
在示例性实施方式中，一种制冷电器包括箱体和搁物架组件。该搁物架组件包括丝杠，该丝杠安装到箱体，使得丝杠是可旋转的。搁物架支架安装到箱体，使得搁物架支架可相对于丝杠平移。搁物架支架具有壳体。螺母布置在搁物架支架的壳体内并旋在丝杠上。螺母在其外表面上具有多个齿。锁定柱塞具有至少一个齿。致动器联接到锁定柱塞。致动器可操作为选择性地使锁定柱塞的至少一个齿与螺母的多个齿啮合。
进一步优选地，所述搁物架组件还包括联接到所述丝杠的马达，并且所述马达可操作地使所述丝杠旋转。
进一步优选地，当所述马达操作为使所述丝杠旋转并且所述致动器不使所述锁定柱塞的所述至少一个齿与所述螺母的所述多个齿啮合时，所述螺母相对于所述丝杠固定，并且当所述马达操作为使所述丝杠旋转并且所述致动器使所述锁定柱塞的 所述至少一个齿与所述螺母的所述多个齿啮合时，所述螺母相对于所述丝杠旋转。
进一步优选地，所述致动器是螺线管。
进一步优选地，所述制冷电器还包括轴承组件，该轴承组件设置在所述螺母的顶部与所述搁物架支架的所述壳体之间，其中，所述丝杠延伸通过所述轴承组件。
进一步优选地，所述轴承组件包括：
第一垫圈，其设置在所述壳体上；
第二垫圈，其设置在所述螺母上；以及
多个轴承，设置在所述第一垫圈与所述第二垫圈之间并跨在所述第一垫圈与所述第二垫圈上。
进一步优选地，所述多个轴承是多个滚柱轴承。
进一步优选地，所述锁定柱塞枢转地安装到所述壳体。
进一步优选地，所述锁定柱塞具有第一端部和第二端部，所述锁定柱塞在所述锁定柱塞的所述第一端部与所述第二端部之间枢转地安装到所述壳体，所述锁定柱塞的所述至少一个齿设置在所述锁定柱塞的所述第一端部处，并且所述锁定柱塞在所述锁定柱塞的所述第二端部处联接到所述致动器。
进一步优选地，所述致动器是具有柱塞和壳的螺线管，所述螺线管的所述柱塞和所述壳体中的一个设置在所述锁定柱塞的所述第二端部处并且连接到该端部，并且所述螺线管的所述柱塞和所述壳中的另一个设置在所述壳体处并且连接到该壳体。
进一步优选地，所述螺母限定内螺纹面，所述螺母的所述内螺纹面的至少一部分形成与所述丝杠的直接干涉螺纹。
进一步优选地，所述螺母包括接触所述丝杠的至少一个尼龙密封件。
进一步优选地，所述搁物架组件还包括安装在所述搁物架支架上的面板。
在另一示例性实施方式中，一种制冷电器包括箱体和搁物架组件。该搁物架组件包括丝杠，该丝杠安装到箱体，使得丝杠是可旋转的。第一搁物架支架安装到箱体，使得第一搁物架支架可相对于丝杠平移。第一搁物架支架具有第一壳体。第一螺母布置在第一壳体内并旋在丝杠上。第一螺母在其外表面上具有多个齿。第一锁定柱塞具有至少一个齿。第一致动器联接到第一锁定柱塞。第一致动器可操作为选择性地使第一锁定柱塞的至少一个齿与第一螺母的多个齿啮合。第二搁物架支架安装到箱体，使得第二搁物架支架可相对于丝杠平移。第二搁物架支架具有第二壳体。第二搁物架支架在箱体上与第一搁物架支架分离。第二螺母布置在第二壳体内 并旋在丝杠上。第二螺母在其外表面上具有多个齿。第二锁定柱塞具有至少一个齿。第二致动器联接到第二锁定柱塞。第二致动器可操作为选择性地使第二锁定柱塞的至少一个齿与第二螺母的多个齿啮合。
进一步优选地，所述搁物架组件还包括联接到所述丝杠的马达，并且所述马达可操作地使所述丝杠旋转。
进一步优选地，当所述马达操作为使所述丝杠旋转并且所述第一致动器不使所述第一锁定柱塞的所述至少一个齿与所述第一螺母的所述多个齿啮合时，所述第一螺母相对于所述丝杠固定，并且当所述马达操作为使所述丝杠旋转并且所述第一致动器使所述第一锁定柱塞的所述至少一个齿与所述第一螺母的所述多个齿啮合时，所述第一螺母相对于所述丝杠旋转。
进一步优选地，所述制冷电器还包括：
第一轴承组件，其设置在所述第一螺母的顶部与所述第一壳体之间；和
第二轴承组件，其设置在所述第二螺母的顶部与所述第二壳体之间，
其中，所述丝杠延伸通过所述第一轴承组件和所述第二轴承组件。
进一步优选地，所述第一轴承组件包括：
第一垫圈，其设置在所述第一壳体上；
第二垫圈，其设置在所述第一螺母上；以及
多个轴承，设置在所述第一垫圈与所述第二垫圈之间并跨在所述第一垫圈与所述第二垫圈上。
进一步优选地，所述第一螺母限定内螺纹面，所述第一螺母的所述内螺纹面的至少一部分形成与所述丝杠的直接干涉螺纹。
进一步优选地，所述第一螺母包括接触所述丝杠的至少一个尼龙密封件
参照下文的描述以及所附权利要求，本发明的这些和其它的特征、方面以及优点将变得更容易理解。结合在本说明书中并且构成本说明书一部分的附图显示了本发明的实施方式并且与描述一起用于对本发明的原理进行解释。
附图说明
参照附图，说明书中阐述了面向本领域普通技术人员的本发明的完整公开，这种公开使得本领域普通技术人员能够实现本发明，包括本发明的最佳实施例。
图1是根据示例性实施方式的制冷电器的前立体图；
图2和图3是图1的示例性制冷电器的搁物架组件的局部立体图；
图4是图3的搁物架组件的离合器和丝杠的立体图；
图5是设置在搁物架组件的壳体内的图4的离合器的立面图；
图6是图5的离合器的局部立面图；
图7是图5的离合器的螺母的立面图，该螺母具有直接干涉螺纹；
图8是根据另一示例性实施方式的具有尼龙密封件的螺母的立面图。
具体实施方式
现在将详细地参照本发明的实施方式，其中的一个或多个示例示于附图中。每个示例都以对发明进行解释的方式给出，并不对本发明构成限制。实际上，对于本领域技术人员而言显而易见的是，能够在不偏离本发明的范围或者精神的前提下对本发明进行多种改型和变型。例如，作为一个实施方式的一部分示出或者进行描述的特征能够用于另一个实施方式，从而产生又一个实施方式。因此，期望的是，本发明覆盖落入所附权利要求及其等同形式的范围内的这些改型以及变型。
图1提供了根据本发明的示例性实施方式的代表制冷电器10的前视图。更具体地，为了说明的目的，本发明在具有如下所示和进一步描述的构造的制冷电器10的背景下描述。如本文所用，制冷电器包括诸如冷藏/冷冻组合、对开门式、底置式、紧凑型以及任何其它样式或型号的制冷电器的电器。因此，包括多个和不同样式的间室的其它构造可以与制冷电器10一起使用，应该理解，图1所示的构造仅以示例的方式提供。
制冷电器10包括食物保鲜室12和冷冻室14。在本实施方式中，冷冻室14和食物保鲜室12并排布置在外壳16内，并由其中的内胆18和20限定。外壳16与内胆18、20之间以及内胆18与内胆20之间的空间可以填充有现场发泡的隔热材料。外壳16通常通过将合适的材料片，诸如预涂漆的钢板折叠成倒U形以形成外壳16的顶壁和侧壁来形成。外壳16的底壁通常单独形成，并且附接到外壳侧壁和为制冷电器10提供支撑的底部框架。内胆18和20由合适的塑料材料模制而成，以分别形成冷冻室14和食物保鲜室12。可选地，内胆18、20可以通过弯曲和焊接诸如钢的合适金属片而形成。外壳16和内胆18、20可以共同形成制冷电器10的壳体或壳。
缓冲条22在外壳前凸缘与内胆18、20的外前边缘之间延伸。缓冲条22由合适的弹性材料形成，诸如挤出的丙烯腈-丁二烯-苯乙烯基材料(通常称为ABS)。在内胆18、20之间的空间中的隔热材料被另一合适的弹性材料条覆盖，该弹性材料条通常也被称为中梁24。在一个实施方式中，中梁24由挤出的ABS材料形成。缓冲条 22和中梁24形成前表面，并且完全围绕外壳16的内周边缘且在内胆18、20之间竖直延伸。中梁24、间室之间的隔热材料以及分隔间室的内胆的隔开壁在本文中有时被统称为中心中梁壁26。另外，制冷电器10包括搁物架28和滑出式储存抽屉30，有时称为储存盘，通常设置在食物保鲜室12中以支撑储存在其中的物品。
根据编程或用户偏好，通过操纵所安装的控制界面32(例如，在食物保鲜室12的上部区域中并与控制器11连接)，制冷电器10可以由一个或多个控制器11或其它处理装置操作。控制器11可以包括一个或多个存储装置(例如，非可递存储器)和一个或多个微处理器，诸如通用或专用微处理器，该微处理器可操作地执行与制冷电器10的操作关联的编程指令或微控制代码。存储器可以表示诸如DRAM的随机存取存储器或诸如ROM或FLASH的只读存储器。在一个实施方式中，处理器执行存储在存储器中的编程指令。存储器可以是与处理器分开的部件，或者可以包含在处理器内的板上。控制器11可以包括一个或多个比例积分(“PI”)控制器，该控制器被编程、装备或用于根据各种控制方法操作制冷电器。因此，如本文所用，“控制器”包括单数和复数形式。
控制器11可以设置在真个制冷电器10中的各种位置。在所示实施方式中，控制器11可以位于例如界面面板32或门体42或44的后面。输入/输出(“I/O”)信号可以沿着布线线束在制冷电器10的控制系统与各种操作部件之间路由，该布线线束可以例如通过后部、侧面或中梁26布设。通常，通过用户界面面板32，用户可以选择各种操作特征和模式并监视制冷电器10的操作。在一个实施方式中，用户界面面板32可以表示通用I/O(“GPIO”)装置或功能块。在一个实施方式中，用户界面面板32可以包括输入部件，诸如包括旋转拨号盘、按钮以及触摸板的各种电气、机械或机电输入装置中的一个或多个。用户界面面板32可以包括显示部件，诸如设计为向用户提供操作反馈的数字或模拟显示装置。用户界面面板32可以经由一条或多条信号线或共享的通信总线与控制器11通信。
在一些实施方式中，提供一个或多个温度传感器以感测食物保鲜室12中的温度和冷冻室14中的温度。例如，第一温度传感器52可以布置在食物保鲜室12中并且可以感测食物保鲜室12中的温度。第二温度传感器54可以布置在冷冻室14中并且可以感测冷冻室14中的温度。可以提供该温度信息(例如，给控制器11以便用于操作冰箱10)。这些温度的感测可以在电器的操作或控制系统的执行期间间歇地或连续地进行。
可选地，搁物架34和金属篮36可以设置在冷冻室14中。另外地或可选地，可 以在冷冻室14中设置制冰机38。冷冻门体42和食物保鲜门体44分别关闭通向冷冻室14和食物保鲜室12的入口。各个门体42、44安装成围绕其外部竖直边缘在如图1所示的打开位置与关闭相关的储存室的关闭位置(未示出)之间旋转。在可选实施方式中，一个或两个门体42、44可以是可滑动的，或者可以以其它方式在打开位置与关闭位置之间移动。冷冻门体42包括多个储存搁物架46，并且食物保鲜门体44包括多个储存搁物架48。
图2和图3是制冷电器10的搁物架组件100的局部立体图。虽然下面在制冷电器10的背景下更详细地描述，但应当理解，在可选示例性实施方式中，搁物架组件100可以用于任何合适的电器中。例如，搁物架组件100可以用于顶置式冰箱电器、底置式冰箱电器、独立的冷冻电器等。如下面更详细地讨论的，搁物架组件100包括用于诸如搁物架28的搁物架110的机动移动的特征。特别地，搁物架组件100可操作为利用单个马达选择性地移动一个或多个搁物架110。
在图3中，示出了具有盖102的搁物架组件100。盖102可以面向例如食物保鲜室12，并且可以形成内胆18的一部分。盖102可以覆盖搁物架组件100的各种内部部件，如图2所示，其中盖102被去除。由此，例如，搁物架组件100的机动部件可以隐藏在盖102后面，以改善搁物架组件100的外观。参见图3，搁物架组件100包括多个搁物架110。搁物架110可在食物保鲜室12内沿着竖向V移动。
转向图2，搁物架组件100还包括丝杠120。丝杠120安装在食物保鲜室12内，使得丝杠120可旋转。例如，搁物架组件100可以包括联接到丝杠120的马达130(在图2中示意性地示出)，并且马达130可操作地旋转丝杠120。马达130可以设置在丝杠120的顶部或底部。通过旋转丝杠120，马达130可以例如沿着竖向V在食物保鲜室12内移动一个或多个搁物架110。
各个搁物架110可以包括搁物架支架或托架112。搁物架支架112可以安装在轨道114上，例如，该轨道限制搁物架支架112沿着竖向V的移动。由此，搁物架支架112可以在食物保鲜室12(或者在可选示例性实施方式中为冷冻室14)中沿着竖向V平移。各个搁物架110还可以包括设置在搁物架支架112上的面板116。面板116可以从搁物架支架112去除，例如以便于清洁面板116。各种食品可以储存在面板116上。在图2中，各个搁物架110包括两个搁物架支架112。在可选的示例性实施方式中，各个搁物架110可以包括一个、三个或更多个搁物架支架112。
搁物架组件100还包括多个离合器140。各个离合器140可以安装到相应的搁物架支架112。各个离合器140也可以选择性地打开和闭合，以将相应的搁物架支架 112连接到丝杠120。当离合器140闭合时，相应的搁物架支架112联接到丝杠120，使得丝杠120通过马达130进行的旋转使相应的搁物架支架112沿着竖向V移动。相反地，当离合器140打开时，相应的搁物架支架112与丝杠120脱开联接，使得丝杠120通过马达130进行的旋转不使相应的搁物架支架112沿着竖向V移动。由此，离合器140可以调节搁物架110的竖直移动。
在图2中，搁物架组件100包括三个搁物架110。应当理解，这仅是以示例的方式提供的。在可选的示例性实施方式中，搁物架组件100可以包括一个、两个、四个或更多个搁物架110。图2中的一个、两个或所有三个离合器140可以闭合，以通过用马达130旋转丝杠120而使相应的搁物架支架112沿着竖向V移动。相反，图2中的一个、两个或所有三个离合器140可以打开，以将相应的搁物架支架112保持在沿着竖向V的固定位置，而不管丝杠120随马达130进行的旋转如何。如从上文可以看到的，通过选择性地闭合相应的离合器140，可以用马达130竖直地移动一个、两个或所有三个搁物架110。由此，可以仅使用一个马达130来仅移动一个搁物架110或同时移动两个/三个搁物架110。
图4是离合器140和丝杠120的立体图。图5是离合器140的立面图。图6是离合器140的局部立面图。参见图2和图5，搁物架支架112包括壳体118。当面板116设置在搁物架支架112上时，壳体118可以相对于面板116固定。壳体118包含离合器140的各种部件，如以下更详细地讨论的。
参见图4至图6，离合器140包括螺母150、轴承组件160、锁定柱塞170以及致动器180。螺母150布置在壳体118内并旋在丝杠120上。由此，例如，螺母150的内螺纹面可以与丝杠120的外螺纹面接合。螺母150在螺母150的外表面154处具有多个齿152。齿152可以周向地分布在螺母150的外表面154上和/或可以沿着螺母150的外表面154轴向延伸。
轴承组件160设置在螺母150的顶部156与壳体118之间。由此，例如，轴承组件160可以设置在壳体118内，并且可以在螺母150与壳体118之间延伸。另外，丝杠120可以例如在壳体118内延伸通过轴承组件160。轴承组件160辅助允许螺母150在壳体118内旋转。例如，轴承组件160可以包括第一垫圈162、第二垫圈164以及多个轴承166。第一垫圈162设置在壳体118上或抵靠壳体设置，并且第二垫圈164设置在螺母150上或抵靠螺母设置。轴承166设置在第一垫圈162与第二垫圈164之间并跨在两个垫圈上。由此，轴承166可以在第一垫圈162和第二垫圈164上滚动，以便于螺母150相对于壳体118旋转。在某些示例性实施方式中，轴承166 可以是滚柱轴承，并且可以用座圈连接到另一个轴承。轴承166也可以围绕丝杠120在第一垫圈162与第二垫圈164之间周向分布。
锁定柱塞170具有至少一个齿172，例如，该齿是螺母150的齿152的互补，并且致动器180联接到锁定柱塞170。致动器180可操作为选择性地使锁定柱塞170的至少一个齿172与螺母150的齿152啮合。例如，锁定柱塞170可以枢转地安装到壳体118，并且致动器180可以使锁定柱塞170在壳体118上枢转，以使锁定柱塞170的至少一个齿172与螺母150的齿152选择性地啮合。
锁定柱塞170可以具有第一端部174和第二端部174，并且锁定柱塞170可以在锁定柱塞170的第一端部174与第二端部176之间枢转地安装到壳体118。锁定柱塞170的至少一个齿172可以设置在锁定柱塞170的第一端部174处，并且锁定柱塞170可以在锁定柱塞170的第二端部176处联接到致动器180。锁定柱塞170可以在锁定柱塞170的第一端部174与第二端部176之间呈L形。
致动器180可以是螺线管，诸如直流推挽螺线管。由此，例如，致动器180可以具有柱塞182和壳184。螺线管180的柱塞182和壳184中的一个可以设置在并连接到锁定柱塞170的第二端部176，而螺线管180的柱塞182和壳184中的另一个可以设置在并连接到壳体118。在可选的示例性实施方式中，致动器180可以是形状记忆合金、线性致动器等。
通过使锁定柱塞170的至少一个齿172与螺母150的齿152啮合，可以调节螺母150相对于丝杠120的旋转。例如，当致动器180不使锁定柱塞170的至少一个齿172与螺母150的齿152啮合时，螺母150可以相对于丝杠120固定。由此，例如，当马达130旋转丝杠120时，螺母150可以与丝杠120一起旋转，使得搁物架支架112沿竖向V的位置不改变(或无实质性改变)，尽管丝杠120与马达130一起旋转。相反，当致动器180使锁定柱塞170的至少一个齿172与螺母150的齿152啮合时，螺母150可相对于丝杠120旋转。由此，例如，当马达130旋转丝杠120时，螺母150可相对于丝杠120旋转，使得搁物架支架112沿着竖向V的位置由于丝杠120的旋转而改变。这样，离合器140可以调节搁物架110的竖直移动。
如从上文可以看到的，搁物架组件100可以有利地提供用于制冷电器10内的搁物架110的完全可调节的自动高度控制。搁物架组件100利用离合器140来将相应的搁物架110接合到丝杠120。对于每个搁物架110，致动器180可以使锁定柱塞170的至少一个齿172与螺母150的齿152啮合，以便防止螺母150旋转。由此，螺母150在丝杠120上被向上或向下驱动，这根据丝杠120的旋转方向迫使接合的搁物架 110向上或向下。螺母150在丝杠120的旋转期间未接合的所有搁物架110都保持竖直就位。由于搁物架110的重量搁置在轴承组件160上，因此这种搁物架110不会发生竖直移动，该轴承组件将重量传递到螺母150，由此，由于螺母150与丝杠120之间的螺纹联接内的摩擦大于轴承组件160内的摩擦而允许螺母150与丝杠120对应地旋转。
离合器140还可以包括附加特征，这些特征用于在致动器180不使锁定柱塞170的至少一个齿172与螺母150的齿152啮合时阻止螺母150在丝杠120上旋转。如图7所示，螺母150可以包括在螺母150与丝杠120之间的螺纹联接的至少一部分上的直接干涉螺纹158。直接干涉螺纹158在螺母150与丝杠120之间形成轻微的过盈配合，例如，由于丝杠120相对于螺母150的过大的根部直径，当致动器180不使锁定柱塞170的至少一个齿172与螺母150的齿152啮合时，该过盈配合阻止螺母150在丝杠120上旋转。作为另一个示例，螺母150可以包括接触丝杠120的尼龙密封件159，诸如耐落克(Nyloc)吸气环。如从上文可以看到的，螺母150可以包括引起阻力的部件，诸如附加的塑料螺纹、耐落克吸气环等，以进一步偏置脱离接合的螺母150，以与丝杠120一起旋转。
本书面描述使用示例对本发明进行了公开(其中包括最佳实施例)，并且还使本领域技术人员能够实施本发明(其中包括制造和使用任何装置或系统并且执行所包含的任何方法)。本发明的可专利范围通过权利要求进行限定，并且可以包括本领域技术人员能够想到的其它的示例。如果这种其它的示例包括与权利要求的字面语言没有区别的结构元件，或者如果这种其它的示例包括与权利要求的字面语言没有实质区别的等同结构元件，则期望这种其它的示例落入权利要求的范围中。

Claims (20)

  1. 一种制冷电器，其特征在于，包括：
    箱体；和
    搁物架组件，该搁物架组件包括：
    丝杠，其安装到所述箱体，使得所述丝杠是可旋转的；
    搁物架支架，其安装到所述箱体，使得所述搁物架支架可相对于所述丝杠平移，所述搁物架支架具有壳体；
    螺母，其布置在所述搁物架支架的所述壳体内并旋在所述丝杠上，所述螺母在其外表面处具有多个齿；
    锁定柱塞，其具有至少一个齿；以及
    致动器，其联接到所述锁定柱塞，所述致动器可操作为选择性地使所述锁定柱塞的所述至少一个齿与所述螺母的所述多个齿啮合。
  2. 根据权利要求1所述的制冷电器，其特征在于，所述搁物架组件还包括联接到所述丝杠的马达，并且所述马达可操作地使所述丝杠旋转。
  3. 根据权利要求2所述的制冷电器，其特征在于，当所述马达操作为使所述丝杠旋转并且所述致动器不使所述锁定柱塞的所述至少一个齿与所述螺母的所述多个齿啮合时，所述螺母相对于所述丝杠固定，并且当所述马达操作为使所述丝杠旋转并且所述致动器使所述锁定柱塞的所述至少一个齿与所述螺母的所述多个齿啮合时，所述螺母相对于所述丝杠旋转。
  4. 根据权利要求1所述的制冷电器，其特征在于，所述致动器是螺线管。
  5. 根据权利要求1所述的制冷电器，其特征在于，其还包括轴承组件，该轴承组件设置在所述螺母的顶部与所述搁物架支架的所述壳体之间，其中，所述丝杠延伸通过所述轴承组件。
  6. 根据权利要求5所述的制冷电器，其特征在于，所述轴承组件包括：
    第一垫圈，其设置在所述壳体上；
    第二垫圈，其设置在所述螺母上；以及
    多个轴承，设置在所述第一垫圈与所述第二垫圈之间并跨在所述第一垫圈与所述第二垫圈上。
  7. 根据权利要求6所述的制冷电器，其特征在于，所述多个轴承是多个滚柱轴 承。
  8. 根据权利要求1所述的制冷电器，其特征在于，所述锁定柱塞枢转地安装到所述壳体。
  9. 根据权利要求8所述的制冷电器，其特征在于，所述锁定柱塞具有第一端部和第二端部，所述锁定柱塞在所述锁定柱塞的所述第一端部与所述第二端部之间枢转地安装到所述壳体，所述锁定柱塞的所述至少一个齿设置在所述锁定柱塞的所述第一端部处，并且所述锁定柱塞在所述锁定柱塞的所述第二端部处联接到所述致动器。
  10. 根据权利要求9所述的制冷电器，其特征在于，所述致动器是具有柱塞和壳的螺线管，所述螺线管的所述柱塞和所述壳体中的一个设置在所述锁定柱塞的所述第二端部处并且连接到该端部，并且所述螺线管的所述柱塞和所述壳中的另一个设置在所述壳体处并且连接到该壳体。
  11. 根据权利要求1所述的制冷电器，其特征在于，所述螺母限定内螺纹面，所述螺母的所述内螺纹面的至少一部分形成与所述丝杠的直接干涉螺纹。
  12. 根据权利要求1所述的制冷电器，其特征在于，所述螺母包括接触所述丝杠的至少一个尼龙密封件。
  13. 根据权利要求1所述的制冷电器，其特征在于，所述搁物架组件还包括安装在所述搁物架支架上的面板。
  14. 一种制冷电器，其特征在于，包括：
    箱体；和
    搁物架组件，该搁物架组件包括：
    丝杠，其安装到所述箱体，使得所述丝杠是可旋转的；
    第一搁物架支架，其安装到所述箱体，使得所述第一搁物架支架可相对于所述丝杠平移，所述第一搁物架支架具有第一壳体；
    第一螺母，其布置在所述第一壳体内并旋在所述丝杠上，所述第一螺母在其外表面处具有多个齿；
    第一锁定柱塞，其具有至少一个齿；
    第一致动器，其联接到所述第一锁定柱塞，所述第一致动器可操作为选择性地使所述第一锁定柱塞的所述至少一个齿与所述第一螺母的所述多个齿啮合；
    第二搁物架支架，其安装到所述箱体，使得所述第二搁物架支架可相对于 所述丝杠平移，所述第二搁物架支架具有第二壳体，所述第二搁物架支架与所述箱体上的所述第一搁物架支架分开；
    第二螺母，其布置在所述第二壳体内并旋在所述丝杠上，所述第二螺母在其外表面处具有多个齿；
    第二锁定柱塞，其具有至少一个齿；以及
    第二致动器，其联接到所述第二锁定柱塞，所述第二致动器可操作为选择性地使所述第二锁定柱塞的所述至少一个齿与所述第二螺母的所述多个齿啮合。
  15. 根据权利要求14所述的制冷电器，其特征在于，所述搁物架组件还包括联接到所述丝杠的马达，并且所述马达可操作地使所述丝杠旋转。
  16. 根据权利要求15所述的制冷电器，其特征在于，当所述马达操作为使所述丝杠旋转并且所述第一致动器不使所述第一锁定柱塞的所述至少一个齿与所述第一螺母的所述多个齿啮合时，所述第一螺母相对于所述丝杠固定，并且当所述马达操作为使所述丝杠旋转并且所述第一致动器使所述第一锁定柱塞的所述至少一个齿与所述第一螺母的所述多个齿啮合时，所述第一螺母相对于所述丝杠旋转。
  17. 根据权利要求14所述的制冷电器，其特征在于，其还包括：
    第一轴承组件，其设置在所述第一螺母的顶部与所述第一壳体之间；和
    第二轴承组件，其设置在所述第二螺母的顶部与所述第二壳体之间，
    其中，所述丝杠延伸通过所述第一轴承组件和所述第二轴承组件。
  18. 根据权利要求17所述的制冷电器，其特征在于，所述第一轴承组件包括：
    第一垫圈，其设置在所述第一壳体上；
    第二垫圈，其设置在所述第一螺母上；以及
    多个轴承，设置在所述第一垫圈与所述第二垫圈之间并跨在所述第一垫圈与所述第二垫圈上。
  19. 根据权利要求14所述的制冷电器，其特征在于，所述第一螺母限定内螺纹面，所述第一螺母的所述内螺纹面的至少一部分形成与所述丝杠的直接干涉螺纹。
  20. 根据权利要求14所述的制冷电器，其特征在于，所述第一螺母包括接触所述丝杠的至少一个尼龙密封件。
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EP4036502A1 (en) 2022-08-03
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US20210088270A1 (en) 2021-03-25
US11125491B2 (en) 2021-09-21
EP4036502A4 (en) 2022-11-02

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