EP3671083A1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
EP3671083A1
EP3671083A1 EP19216851.6A EP19216851A EP3671083A1 EP 3671083 A1 EP3671083 A1 EP 3671083A1 EP 19216851 A EP19216851 A EP 19216851A EP 3671083 A1 EP3671083 A1 EP 3671083A1
Authority
EP
European Patent Office
Prior art keywords
caster
noise reduction
reduction part
shelving
refrigerator
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19216851.6A
Other languages
German (de)
English (en)
Inventor
Lulu Huang
Kun Sun
Min Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3671083A1 publication Critical patent/EP3671083A1/fr
Withdrawn legal-status Critical Current

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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
    • F25D25/025—Drawers
    • 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
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/17—Drawers used in connection with household appliances
    • A47B2210/175—Refrigerators or freezers
    • 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

Definitions

  • the present utility model relates to the field of household appliance technologies, specifically to a refrigerator.
  • a drawer and other shelving parts may be arranged in a cavity.
  • the user can put stored goods in the drawer, and can take out and put in the stored goods by pulling the drawer when necessary.
  • casters are mounted on a left side and a right side of the drawer along a width direction to reduce friction.
  • An objective of the present utility model is to provide an improved refrigerator.
  • a refrigerator including: a shelving part, used to place goods; a track, located on at least one side of the shelving part, where the shelving part is adapted to slide along the track, and a sliding direction of the shelving part is parallel to a center line of the shelving part along a width direction; a caster, where the caster is fixed on at least one side of the shelving part and is supported on the track, or the caster is fixed on the track to support the shelving part, and the caster includes a first end and a second end that are opposite to each other, the first end of the caster facing the center line, and the second end deviating from the center line; and an elastic sleeve, where the elastic sleeve is sheathed in the caster and includes a primary noise reduction part and an auxiliary noise reduction part, along an axial direction of the caster, the primary noise reduction part being located at a center area of the caster, the auxiliary noise reduction part being located between the primary noise reduction part and the first end of the
  • the auxiliary noise reduction part can effectively buffer pressure on the first end of the caster from the shelving part, reduce deformation of the first end of the caster, thus reducing friction and noise.
  • the primary noise reduction part protrudes outward from the auxiliary noise reduction part in the radial direction of the caster to reduce a contact area between the caster and the track, thereby reducing friction and noise.
  • the auxiliary noise reduction part is connected to the primary noise reduction part to adapt to impact of the shelving part with different loads on the caster, thereby achieving a better noise reduction effect.
  • auxiliary noise reduction part there is spacing between the auxiliary noise reduction part and the primary noise reduction part, so that the auxiliary noise reduction part is mainly arranged for an area of the caster with maximum deformation under the pressure of the shelving part, thereby achieving a noise reduction effect and reducing cost.
  • the center area of the caster is provided with a groove along a circumferential direction of the caster, and the primary noise reduction part is embedded in the groove. Therefore, the primary noise reduction part can be limited to avoid an unexpected displacement of the primary noise reduction part along the axial direction of the caster during the movement of the caster.
  • the auxiliary noise reduction part completely covers the outer peripheral face of the caster located between the primary noise reduction part and the first end of the caster, to adapt to impact of the shelving part with different loads on the caster and achieve a better noise reduction effect.
  • the elastic sleeve covers at least a portion of the end face of the first end of the caster and protects the end face of the first end of the caster, to reduce noise generated by friction between the shelving part and the end face of the first end of the caster during sliding.
  • the end face of the first end of the caster is provided with a fixing groove
  • the elastic sleeve is provided with a mounting lug inserted in the fixing groove. Therefore, the elastic sleeve can be limited to prevent the elastic sleeve from falling off from the caster during rolling of the caster.
  • the elastic sleeve further includes: an extension part, where the extension part is located between the primary noise reduction part and the second end of the caster, and at least covers an outer peripheral face of the caster located between the primary noise reduction part and the second end of the caster, and the primary noise reduction part protrudes outward from the extension part in the radial direction of the caster. Therefore, the second end of the caster can also be properly protected to reduce overall friction of the caster and achieve a better noise reduction effect.
  • extension part and the auxiliary noise reduction part are arranged symmetrically relative to the primary noise reduction part. Therefore, by means of a symmetric design, either of the two ends of the caster along the axial direction can be mounted as the first end, thereby reducing the assembly complexity.
  • a thickness of the auxiliary noise reduction part gradually decreases in a direction that points from the primary noise reduction part to the first end of the caster. Therefore, by means of a surface design with a smooth transition, the overall stress of the auxiliary noise reduction part is more uniform, thereby optimizing a sliding effect of the shelving part.
  • a side of the elastic sleeve away from the caster is curved, and/or, a side of the elastic sleeve away from the caster is planar, in order to achieve a good buffer effect and reduce the preparation difficulty of the elastic sleeve.
  • material of the elastic sleeve is selected from: thermoplastic elastomer, rubber material, and silica gel, in order to achieve a buffer function and a noise reduction effect.
  • the shelving part includes: a drawer or a shelf.
  • a body of the existing caster 100 is made of plastic, and the caster 100 is merely equipped with a silicone ring 120 in a groove 110 located in the middle. Moreover, the casters 100 are usually mounted on left and right sides of a drawer and other shelving parts along a width direction.
  • a refrigerator including: a shelving part, used to place goods; a track, located on at least one side of the shelving part, where the shelving part is adapted to slide along the track, and a sliding direction of the shelving part is parallel to a center line of the shelving part along a width direction; a caster, where the caster is fixed on at least one side of the shelving part and is supported on the track, or the caster is fixed on the track to support the shelving part, and the caster includes a first end and a second end that are opposite to each other, the first end of the caster facing the center line, and the second end deviating from the center line; and an elastic sleeve, where the elastic sleeve is sheathed in the caster and includes a primary noise reduction part and an auxiliary noise reduction part, along an axial direction of the caster, the primary noise reduction part being located at a center area of the caster, the auxiliary noise reduction part being located between the primary
  • the auxiliary noise reduction part can effectively buffer pressure on the first end of the caster from the shelving part, reduce deformation of the first end of the caster, thus reducing friction and noise.
  • the primary noise reduction part protrudes outward from the auxiliary noise reduction part in the radial direction of the caster to reduce a contact area between the caster and the track, thereby reducing friction and noise.
  • FIG. 3 is a partial schematic view of a refrigerator according to an embodiment of the present utility model
  • FIG. 4 is a sectional view of a shelving part in FIG. 3 along a B-B direction
  • FIG. 5 is a partial enlarged view of an area C in FIG. 4 .
  • FIG. 3 focuses on an exemplary demonstration of an area where a shelving part 210 is placed in the refrigerator 200.
  • the shelving part 210 being a drawer is used as an example for detailed elaboration.
  • the shelving part 210 may also be a shelf or other objects that can slide away from or close to the refrigerator 200 through the caster 220 along a depth direction (y direction) of the refrigerator 200.
  • a width direction (x direction) of the refrigerator 200 is parallel to a width direction of the shelving part 210; it is assumed that the depth direction (y direction) of the refrigerator 200 is parallel to a depth direction of the shelving part 210; and it is assumed that a height direction (z direction) of the refrigerator 200 is parallel to a height direction of the shelving part 210.
  • the refrigerator 200 may include: the shelving part 210 used to place goods; a track 230, located on at least one side of the shelving part 210, where the shelving part 210 is adapted to slide along the track 230, and a sliding direction of the shelving part 210 is parallel to a center line (b) of the shelving part 210 along the width direction (x direction).
  • the track 230 can be arranged on a right side of an inner liner 201 of a cavity of the refrigerator 200, and the shelving part 210 is adapted to slide along the track 230 in the y direction and a negative direction of the y direction.
  • the track 230 can be further arranged on a left side of the inner liner 201 of the cavity of the refrigerator 200, to provide a left and right symmetrical supporting structure for the shelving part 210.
  • the refrigerator 200 may further include: a caster 220, where the caster 220 is fixed on at least one side of the shelving part 210 and is supported on the track 230, to ensure a smoother sliding effect of the shelving part 210 along the track 230.
  • the caster 220 can be fixed on track 230 to support the shelving part 210, which can also improve the sliding effect.
  • the caster 220 can be combined with the shelving part 210 through a bearing 225 to drive the shelving part 210 to slide along the track 230.
  • the caster 220 is provided with an axle hole 224 penetrating the first end 220a and the second end 220b along an axial direction a, the bearing 225 extends into the axle hole 224 and is fixed with the shelving part 210, and the caster 220 is adapted to rotate around the bearing 225.
  • the caster 220 can include the first end 220a and the second end 220b that are opposite to each other, where the first end 220a of the caster 220 faces the center line b, and the second end 220b deviates from the center line b.
  • the caster 220 can be mounted on either side of the shelving part 210 along the width direction (x direction), an end of the caster 220 near the shelving part 210 is the first end 220a of the caster 220, and an end of the caster 220 away from the shelving part 210 is the second end 220b of the caster 220.
  • the caster 220 may be arranged at the bottom of the shelving part 210, where an end of the caster 220 near the center line b is the first end 220a of the caster 220, and an end of the caster 220 away from the center line b is the second end 220b of the caster 220.
  • the refrigerator 200 may further include: an elastic sleeve 240.
  • the elastic sleeve 240 can be sheathed in the caster 220.
  • the elastic sleeve 240 can include a primary noise reduction part 241 and an auxiliary noise reduction part 242.
  • the primary noise reduction part 241 can be located at a center area of the caster 220, and the auxiliary noise reduction part 242 can be located between the primary noise reduction part 241 and the first end 220a of the caster 220.
  • the primary noise reduction part 241 protrudes outward from the auxiliary noise reduction part 242 in a radial direction r of the caster 220.
  • the center area of the caster 220 refers to: a position of a midpoint of a connection line between the first end 220a and the second end 220b of the caster 220 along the axial direction a of the caster 220, and an area within a preset error range around the position of the midpoint.
  • the axial direction a of the caster 220 is at a non-zero angle with the width direction (x direction) of the refrigerator 200.
  • the first end 220a of the caster 220 will sink along the direction of gravity.
  • the axial direction a of the caster 220 can be substantially parallel to the x direction, so that the shelving part 210 slides smoothly along the y direction.
  • the pressure exerted by the shelving part 210 on the caster 220 (especially the first end 220a of the caster 220) is buffered by the auxiliary noise reduction part 242 to a large extent, so that deformation of the first ends 220a of the caster 220 can be greatly reduced, balance of the movement of the caster 220 is kept as far as possible, and at the same time, noise during the movement can be reduced.
  • the auxiliary noise reduction part 242 can effectively buffer pressure on the first end 220a of the caster 220 from the shelving part 210, reduce deformation of the first end 220a of the caster 220, thus reducing friction and noise. Furthermore, the primary noise reduction part 241 protrudes outward from the auxiliary noise reduction part 242 in the radial direction r of the caster 220, to reduce a contact area between the caster 220 and the track 230, thereby further reducing friction and noise.
  • a side of the elastic sleeve 240 away from the caster 220 can be curved, for example, may be smoothly curved or waved as shown in FIG. 6 to FIG. 8 .
  • a side of the elastic sleeve 240 away from the caster 220 can be planar in order to achieve a good buffer effect and reduce the preparation difficulty of the elastic sleeve 240.
  • a thickness h of the auxiliary noise reduction part 242 can gradually decrease along a direction that points from the primary noise reduction part 241 to the first end 220a of the caster 220, for example, the thickness h can be smoothly curved or be a straight line as shown in FIG. 6 to FIG. 8 . Therefore, by means of a surface design with a smooth transition, the overall stress of the auxiliary noise reduction part 242 is more uniform, thereby optimizing a sliding effect of the shelving part 210.
  • the auxiliary noise reduction part 242 is connected to the primary noise reduction part 241, to adapt to impact of the shelving part 210 with different loads on the caster 220, thereby achieving a better noise reduction effect.
  • the auxiliary noise reduction part 242 in the axial direction a of the caster 220, can include a first end 242a and a second end 242b that are opposite to each other, where the first end 242a of the auxiliary noise reduction part 242 can be connected to the primary noise reduction part 241.
  • the auxiliary noise reduction part 242 can be mainly arranged for an area of the caster 220 with maximum deformation under the pressure of the shelving part 210, to achieve a noise reduction effect and reduce cost.
  • the center area of the caster 220 is provided with a groove 221 along the circumferential direction c of the caster 220, and the primary noise reduction part 241 can be embedded in the groove 221. Therefore, the primary noise reduction part 241 can be limited to avoid an unexpected displacement of the primary noise reduction part 241 along the axial direction a of the caster 220 during the movement of the caster 220.
  • the primary noise reduction part 241 embedded in the groove 221 still protrudes outward from the auxiliary noise reduction part 242 in the radial direction r of the caster 220.
  • a maximum height of the primary noise reduction part 241 is greater than that of the auxiliary noise reduction part 242.
  • the auxiliary noise reduction part 242 can completely cover the outer peripheral face of the caster 220 located between the primary noise reduction part 241 and the first end 220a of the caster 220, to adapt to impact of the shelving part 210 with different loads on the caster 220 and achieve a better noise reduction effect.
  • the second end 242b of the auxiliary noise reduction part 242 can be flush with an end face 222 of the first end 220a of the caster 220.
  • the elastic sleeve 240 can be directly injection-mounded outside the caster 220 by using a secondary encapsulation technology to ensure a tight connection between the caster 220 and the elastic sleeve 240.
  • FIG. 9 to FIG. 11 , and FIG. 12 to 14 are schematic views of the other two types of casters 220 of the refrigerator according to this embodiment.
  • the difference of the two types of casters 220 from the caster 220 shown in FIG. 6 to FIG. 8 above are elaborated in detail.
  • FIG. 9 to FIG. 14 for the specific content of the primary noise reduction part 241 and the auxiliary noise reduction part 242, reference can be made to the relevant description of the caster 220 shown in FIG. 6 to FIG. 8 above.
  • the elastic sleeve 240 can cover at least a portion of the end face 222 of the first end 220a of the caster 220 and protects the end face 222 of the first end 220a of the caster 220, to reduce noise generated by friction between the shelving part 210 and the end face 222 of the first end 220a of the caster 220 during sliding.
  • the end face 222 of the first end 220a of the caster 220 can be provided with a fixing groove 223, and the elastic sleeve 240 can be provided with a mounting lug 243 inserted in the fixing groove 223. Therefore, the elastic sleeve 240 can be limited to prevent the elastic sleeve 240 from accidentally falling off from the caster 220 during rolling of the caster 220.
  • the elastic sleeve 240 can also be fixed to the end face 222 of the first end 220a of caster 220 in a bonding manner.
  • the elastic sleeve 240 located at the end face 222 of the first end 220a of the caster 220 can be parallel to the end face 222, to reduce the friction coefficient between the caster 220 and the shelving part 210.
  • the elastic sleeve 240 can further include: an extension part 244.
  • the extension part 244 can be located between the primary noise reduction part 241 and the second end 220b of the caster 220, and at least covers an outer peripheral face of the caster 220 located between the primary noise reduction part 241 and the second end 220b of the caster 220.
  • the primary noise reduction part 241 protrudes outward from the extension part 244 in the radial direction r of the caster 220. Therefore, the second end 220b of the caster 220 can also be properly protected to reduce overall friction of the caster 220 and achieve a better noise reduction effect.
  • the extension part 244 in the axial direction a of the caster 220, can include a first end 244a and a second end 244b that are opposite to each other, where the first end 244a of the extension part 244 can be connected to the primary noise reduction part 241.
  • the first end 244a of the extension part 244 may not be connected to the primary noise reduction part 241, that is, there is spacing between the extension part 244 and the primary noise reduction part 241.
  • the second end 244b of the extension part 244 can be flush with the end face 222 of the first end 220a of the caster 220.
  • the extension part 244 can cover at least a portion of the end face 222 of the second end 220b of the caster 220.
  • the extension part 244 can combined with the end face of the second end 220b of the caster 220 in a bonding manner.
  • the end face 222 of the second end 220b of the caster 220 can be provided with the fixing groove 223 as shown in FIG. 11
  • the extension part 244 can be provided with the mounting lug 243 inserted in the fixing groove 223 as shown in FIG. 11 . Therefore, the elastic sleeve 240 can be limited at the end face 222 of the second end 220b of the caster 220.
  • the extension part 244 and the auxiliary noise reduction part 242 can be arranged symmetrically relative to the primary noise reduction part 241. Therefore, by means of a symmetric design, either of the two ends of the caster 220 along the axial direction a can be mounted as the first end 220a, thereby reducing the assembly complexity.
  • either end of the caster 220 shown in FIG. 12 to FIG. 14 along the axial direction a can be mounted, in a direction facing the shelving part 210, as the first end 220a on the shelving part 210 shown in FIG. 1 to FIG. 3 . Therefore, the mounting engineer does not need to determine a mounting direction of the caster 220.
  • a side of the elastic sleeve 240 away from the caster 220 can be planar in order to achieve a good buffer effect and reduce the preparation difficulty of the elastic sleeve 240.
  • a side of the auxiliary noise reduction part 242 and a side of the extension part 244 that are away from the caster 220 can both be planar.
  • a side of the auxiliary noise reduction part 242 and a side of the extension part 244 that are away from the caster 220 can both be curved as shown in FIG. 6 to FIG.8 .
  • the extension part 244 and the auxiliary noise reduction part 242 can be arranged asymmetrically relative to the primary noise reduction part 241.
  • a side of the auxiliary noise reduction part 242 away from the caster 220 can be planar, and a side of the extension part 244 away from the caster 220 can be curved, and vice versa.
  • material of the elastic sleeve 240 is selected from: thermoplastic elastomer (TPE), rubber material (for example, thermoplastic polyurethanes (TPU)), and silica gel, in order to achieve a buffer function and a noise reduction effect.
  • TPE thermoplastic elastomer
  • rubber material for example, thermoplastic polyurethanes (TPU)
  • silica gel silica gel

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP19216851.6A 2018-12-21 2019-12-17 Réfrigérateur Withdrawn EP3671083A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822167089.7U CN209558771U (zh) 2018-12-21 2018-12-21 一种冰箱

Publications (1)

Publication Number Publication Date
EP3671083A1 true EP3671083A1 (fr) 2020-06-24

Family

ID=68303362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19216851.6A Withdrawn EP3671083A1 (fr) 2018-12-21 2019-12-17 Réfrigérateur

Country Status (2)

Country Link
EP (1) EP3671083A1 (fr)
CN (1) CN209558771U (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030692A1 (de) * 1990-09-28 1992-04-02 Grass Ag Trag- und fuehrungsrolle fuer ausziehfuehrungen fuer schubladen
KR20140088376A (ko) * 2013-01-02 2014-07-10 동부대우전자 주식회사 냉장고용 롤러 장치
KR20160002733U (ko) * 2016-07-27 2016-08-05 (주)청호시스템 수납장치용 롤러어셈블리

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030692A1 (de) * 1990-09-28 1992-04-02 Grass Ag Trag- und fuehrungsrolle fuer ausziehfuehrungen fuer schubladen
KR20140088376A (ko) * 2013-01-02 2014-07-10 동부대우전자 주식회사 냉장고용 롤러 장치
KR20160002733U (ko) * 2016-07-27 2016-08-05 (주)청호시스템 수납장치용 롤러어셈블리

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Publication number Publication date
CN209558771U (zh) 2019-10-29

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