CN105222502B

CN105222502B - Household electrical appliance

Info

Publication number: CN105222502B
Application number: CN201410261989.1A
Authority: CN
Inventors: 孙云芳; 温格特·丹尼尔; 奥斯巴·贝恩德; 窦本和; 黄珊珊
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2014-06-12
Filing date: 2014-06-12
Publication date: 2022-07-22
Anticipated expiration: 2034-06-12
Also published as: WO2015189777A1; CN105222502A; EP3155340B1; PL3155340T3; EP3155340A1

Abstract

The invention relates to a household appliance comprising a housing (10) accommodating at least one electric device and a cover (11), the cover (11) being fixed to the housing (10) by at least one connecting part (17,24), the connecting part (17,24) comprising a terminal (25), the cover (11) being detachable from the housing (10) by operating the terminal (25), the terminal (25) being located at least partially within an edge (26) of the cover (11).

Description

Household electrical appliance

[ technical field ]

The present invention relates to the field of household appliances, and more particularly, to a household appliance having a housing.

[ background art ]

At present domestic appliance, for example in the refrigerator, need set up and be used for placing temperature control panel's temperature control box for example, because temperature control panel probably can break down after long-time the use, need dismantle temperature control box and detect, maintain or change temperature control panel. The above needs require easy removal of the lid closing the thermal control box, and therefore, the lid is generally exposed directly to the surface of the refrigerator or to the user after opening the door of the refrigerator. From the viewpoint of aesthetic appearance, it is desirable that the user is not liable to notice the difference between the lid and the outer wall of the refrigerator around the lid, and therefore, the lid surface is formed in the same color as the outer wall of the refrigerator and the lid is disposed so that the outer surface of the lid and the outer wall of the refrigerator around it are on the same plane, and the gap between the edge of the lid and the outer wall of the refrigerator is kept as small as possible and not liable to notice by the user.

The cover for sealing the temperature control box is convenient to disassemble, and moreover, for the sake of attractive appearance, no gap is left between the cover of the temperature control box and the outer wall of the refrigerator around the cover as far as possible, so that the structure increases the difficulty of disassembling the cover. Currently, two schemes are adopted for the above situation: 1. the cover is fixed on the temperature control box through screws, and a decorative plate is additionally arranged in front of the cover, namely on a metal plate of the refrigerator in order to shield the exposed screws, so that the problems of cover disassembly and attractiveness can be solved at the same time, but in some refrigerator series, the decorative plate is not expected to be additionally arranged on the metal plate; 2. fix the lid to the control by temperature change box through the buckle, then set up a less and be difficult for the operating hole that perceives in the below of the roof of refrigerator for example at certain distance apart from the lid, through the elastic component at latch or draw-in groove place in inserting the operating hole remote stirring buckle with the operation strip to dismantle the lid. Practice proves for many times that the structure is that the latch or the clamping groove is far away from the operation hole, and an operator cannot see the fluctuating latch or the clamping groove of the operation strip, so that the elastic part at the latch or the clamping groove is easily bent more than expected due to overlarge operation force, the elastic part is broken, and a new box body or a new cover needs to be replaced when the elastic part is broken.

[ summary of the invention ]

In order to solve the problem mentioned in the background art that the cover is not easy to detach from the housing or the cover or the housing is easy to damage, the invention provides a household appliance with a housing with a detachable cover.

In order to achieve the above object, the invention provides a household appliance comprising a housing accommodating at least one electric device and a cover, the cover being secured to the housing by at least one connection part, the connection part comprising a terminal, by operation of which the cover can be detached from the housing, the terminal being located at least partially within an edge of the cover.

By arranging the terminal at least partly in the rim of the cover, the cover is moved a small distance slightly outwards by means of e.g. a suction cup or other suction means, so that the cover is moved a distance roughly corresponding to the thickness of the rim of the cover, the rim of the cover being pulled out higher than the walls of the household appliance at its periphery, and since the cover can be removed from the housing by operating the terminal, the terminal exposed in the rim of the cover can be pushed by e.g. a foil, so that the cover can be removed from the housing more easily. The disassembling mode is reliable, an operator can see the thin sheet of the pushing terminal in the whole process of operation, the force and the amplitude of the operation can be controlled, and the connecting part on the cover is prevented from being damaged due to misoperation.

At least one recess is provided in the rim of the cover, the terminal end being at least partially located in the recess. The opening of the recess is directed towards the interior of the housing for aesthetic effect.

The depth of the recess is less than half the thickness of the cover, preferably a quarter of the thickness of the cover, on the one hand to ensure that the terminal has a certain thickness, for example a quarter of the thickness of the cover, which is convenient for handling, and if the terminal is too thin, it is easily broken during handling, or the foil for handling is harder to push against the terminal; on the other hand, the safety of the cover is also guaranteed, if the terminal is too thick, the thickness of the cover corresponding to the recess in which the terminal is located is necessarily thin, and there is a risk of breaking the cover too thin.

When the cover is fixed to the shell, the connecting part is completely positioned in the shell, and the connecting part is not seen from the outside, so that the requirement of aesthetic aspect is met.

The connecting member includes a resilient member terminating in an end portion of the resilient member, the termination being operable to cause a change in shape of the resilient member to enable removal of the cover from the housing.

The connecting part is a buckle, the buckle comprises a first buckle part fixed on the shell and a second buckle part fixed on the cover, and the first buckle part and the second buckle part are mutually matched for use. The terminal is part of the second catch, i.e. in this embodiment the terminal is fixed to the lid.

The buffer piece is located between the elastic piece and the cover, and the buffer piece is used for protecting the elastic piece on the second buckling piece and preventing the elastic piece from being broken due to overlarge bending amplitude. The buffer part is actually an elastic sheet with a bent shape, one end of the buffer part is fixedly connected to the elastic part, the other end of the buffer part is abutted to the extending wall of the cover, and the buffer part is displaced relative to the extending wall of the cover when stressed.

The housing has an opening, the cover and the opening having substantially the same dimensions, so that the cover perfectly closes the opening and forms a small and inconspicuous gap between the cover and the surrounding wall of the household appliance, the cover also having the same color as the surrounding wall of the household appliance, thus maintaining a good appearance.

The guide part for guiding the cover to move relative to the shell comprises a guide protrusion and a guide groove matched with the guide protrusion, for example, the guide protrusion can be arranged on the extension wall of the cover, the guide groove is arranged on the inner wall of the shell, and when the extension wall of the cover is inserted into the shell, under the guide of the matched use of the guide protrusion and the guide groove, components including the first fastener and the second fastener can be in the correct positions, and the installation of the cover and the shell is facilitated.

The household appliance is a refrigerator, a washing machine or a gas stove.

[ description of the drawings ]

FIG. 1 is a schematic view of a three-door refrigerator in a household appliance according to the present invention;

FIG. 2 is a schematic view of the housing of the temperature control box of the top wall of the three-door refrigerator;

FIG. 3 is a schematic view of a lid of the thermal control cassette;

fig. 4 is an enlarged view of a portion C of fig. 3;

fig. 5 is a cross-sectional view of the terminal end of the connecting member located within the rim of the cover;

FIG. 6 is a cross-sectional view of the snap with the mating teeth and notches;

FIG. 7 is a cross-sectional view of a refrigerator with a wall of metal plate and a temperature controlled box;

FIG. 8 is an enlarged view of portion A of FIG. 7;

FIG. 9 is a cross-sectional view of a wall of a refrigerator including a metal plate and a decorative plate and having a temperature controlled box;

fig. 10 is an enlarged view of part B of the bitmap 9.

[ detailed description of the invention ]

Fig. 1 shows a three-door refrigerator 1, which includes an upper refrigerating chamber 37, a middle chamber 36, a lower freezing chamber 35, and a refrigerating chamber door 34, a middle chamber door 33, and a freezing chamber door 32, which are respectively located in the three chambers, wherein a temperature control box for placing a PCB board such as a temperature controller is disposed above the refrigerating chamber 37, i.e., a top wall of the refrigerator, and an outer surface 5 of a cover plate 2 of a cover 11 of the temperature control box is exposed to a front wall 12 of the top wall of the refrigerator, the front wall 12 is a metal plate, and for aesthetic reasons, the outer surface 5 of the cover plate 2 and the metal plate 12 are located on the same plane, and the same color is used, and a gap between the cover plate 2 and the surrounding metal plate 12 is ensured to be as small as possible, thereby avoiding being easily perceived. When the refrigerating chamber door 34 closes the refrigerating chamber 37, the cover 12 is shielded by the refrigerating chamber door 34, and a switch for activating the power supply of the bulb in the refrigerating chamber 37 may be further provided on the front wall 12 of the top wall of the refrigerator, which is not described in detail herein since it is of a common design.

Fig. 2 and 3 respectively show the casing 10 of the temperature control box and the cover 11 for closing the casing 10, the casing 10 is substantially a cuboid, an extending area is provided on the corner of the rear wall of the cuboid to adapt to the shape of the PCB board, the opening 22 of the casing 10 is rectangular, the first snap-in piece 17 for connection and fixation is provided on two side walls of the casing 10, in this embodiment, the first snap-in piece 17 is a protrusion, and the guiding protrusion 21 for guiding is provided on the lower wall in the casing 10. The cover 11 has a cover plate 2 and four

walls

27, 28 extending from the inner surface 4 of the cover plate 2 to the rear wall of the housing 10, adjacent two of the four walls are connected perpendicularly to each other to form a hollow member having a rectangular cross section, a guide groove 23 is provided on one of the four walls 28 to cooperate with the guide projection 21 provided on the inner wall of the housing 10, and the guide projection 21 and the guide groove 23 cooperate with each other so that the cover 11 can be positioned at a correct position when it enters the housing 10 to facilitate the attachment of the cover 11 to the housing 10. On both extension walls 27 perpendicularly connected to the wall 28 where the guide groove 23 is located, a second catch 27 is provided, and with regard to the specific structure of the second catch 27, reference is made to fig. 4. One end 3 of the second locking member 27 is fixed on the extending wall 27, the fixed end 3 is almost flush with the end of the extending wall 27, the fixed end 3 comprises two fixing pins fixed on the extending wall 27 and parallel to each other and a connecting piece connecting the two fixing pins, the second locking member 27 further comprises a deformable elastic member 18, the elastic member 18 and the connecting piece are of an integral structure, a main body of the elastic member 18 is substantially parallel to the extending wall 27, a first clamping groove 20 and a second clamping groove 15 are arranged on the elastic member 18 side by side, the arrangement direction of the first clamping groove 20 and the second clamping groove 15 is perpendicular to the surface of the cover plate 2 of the cover 11, the first clamping groove 20 is closer to the cover plate 2 than the second clamping groove 15, and both the first clamping groove 20 and the second clamping groove 15 can be matched with the first locking member 17, namely, in a protruding manner. The distance between the first card slot 20 and the second card slot 15 is designed to be equal to the thickness of the decorative plate 14 (see fig. 10) to be attached to the metal plate 12 of the refrigerator.

A buffer piece 19 is arranged between the elastic piece 18 and the extension wall 27, and the buffer piece 19 is used for protecting the elastic piece 18 on the second buckling piece 27 and preventing the elastic piece 18 from being broken due to overlarge bending amplitude. The buffer member 19 is also a flexible sheet with a curved shape, one end of which is fixedly connected to the flexible member 18 and the other end of which abuts against the extension wall 27 of the cover, and displaces relative to the extension wall 27 when a force is applied. The elastic element 18 is connected at one end to the connecting piece and at the other end to a terminal, which is an operating piece perpendicular to the elastic element 18 and to the extension wall 27, the operating piece 25 is located completely in a recess 29 of the inner surface 4 of the cover plate 2, the recess 29 opens towards the inside of the housing 10, the depth of the recess 29 is approximately one fourth of the thickness of the cover plate 2 (see fig. 5), on one hand, to ensure that the operating piece 25 has a certain thickness for easy handling, and if the operating piece 25 is too thin, the operating piece is easily broken or difficult to handle; on the other hand, the safety of the cover plate 2 is also ensured, if the operating piece 25 is too thick, the thickness of the cover plate 2 corresponding to the groove 29 where the operating piece 25 is located is necessarily thin, and if the cover plate 2 is too thin, the risk of fracture exists.

As mentioned above, the first locking groove 20 and the second locking groove 15 are arranged side by side on the elastic member 18, please refer to fig. 6, the first locking groove 20 and the second locking groove 15 are located on the elastic member 18 and are integrated with the elastic member 18, an angle of an acute angle D formed by intersection of inclined surfaces of the first locking groove 20 and the second locking groove 15 and a surface of the elastic member 18 is preferably smaller than 45 degrees, in this embodiment, the angle D is 30 degrees, and the smaller the angle D, the easier the disengagement of the first locking member 17 from the

locking grooves

15, 20 is, but the smaller the angle is, the less the fixation of the first locking member 17 and the

locking grooves

15, 20 is. In addition, a small angle, for example 30 degrees, makes it easier for the first catch 17 to move slightly away from the

catch

15, 20 when a small external force is applied. For example, the first latch 17 is located in the second latch slot 15, and the outer surface 5 of the cover plate 2 is adsorbed by using a washing dish or other adsorbing device and the cover plate 2 is pulled outwards, so that the first latch 17 moves a small displacement relative to the second latch slot 15 in fig. 6, and at the same time, the cover plate 2 moves outwards a small distance slightly, and the small displacement is enough to make the side wall 26 of the cover plate 2 of the cover 11 higher than the wall of the household appliance around the side wall, so that the operating piece 25 exposed from the side wall 26 of the cover 11 can be pushed by a component such as a thin sheet, and the cover 11 can be detached from the housing 10 more conveniently. The detachment is reliable, so that an operator can see the thin sheet such as the pushing operation piece 25 all the time in the operation process, the operation strength and the operation amplitude can be controlled, and the connecting parts on the cover 11 are prevented from being damaged due to misoperation.

Fig. 7 and 8 show the connection relationship between the temperature control box and the metal plate 12 when the wall of the refrigerator is only the metal plate 12. The temperature control box is a cuboid, the rear wall 6 of the temperature control box is different from the shell 10 in fig. 2, the first fastener 17 is positioned in the first clamping groove 20 which is closer to the cover plate 2, the metal plate 12 is provided with a vertical part 16 which is bent at one end and is vertical to the metal plate 12 on the top front wall of the refrigerator at the position close to the opening of the temperature control box, and the shell 10 is fixed on the vertical part 16 of the metal plate. The outer surface of the cover plate 2 and the metal plate 12 around it are in the same plane with almost no significant gap between them. Fig. 9 and 10 show the connection relationship between the thermostat box and the metal plate 12 and the decorative plate 14 after the decorative plate 14 is attached to the metal plate 12. The first fastener 17 is located in the second slot 15 far from the cover plate 2, the housing 10 is still fixed on the vertical part 16 of the metal plate, and the outer surface of the cover plate 2 and the decorative plate 14 around the cover plate are located on the same plane and have almost no obvious gap therebetween. The thickness of the decorative plate 14 is equal to the distance between the first card slot 20 and the second card slot 15.

List of labels in the figure:

1: refrigerator with a door

2: cover plate

3: fixed terminal

4: inner surface of the cover plate

5: external surface of cover plate

6: casing back wall

7: front wall of refrigerator top

10: containing shell

11: cover for portable electronic device

12: front wall (metal plate) 14 of refrigerator top wall: decorative board

15: second card slot

16: vertical metal plate

17: first fastener

18: elastic piece

19: buffer piece

20: first card slot

21: guide projection

22: opening of the container

23: guiding groove

24: second fastener

25: operation sheet

26: cover plate side wall

27: extension wall

29: groove

32 freezing chamber door

33 middle room door

34 door of refrigerating chamber

35: freezing chamber

36: intermediate chamber

37: refrigerating chamber

Claims

1. A household appliance comprising a housing (10) and a cover (11) which accommodates at least one electric device, said cover (11) being fixed to said housing (10) by at least one connection means comprising a terminal which, by operating said terminal, is released by said housing (10) so as to allow the cover (11) to be detached from said housing (10), characterized in that: the terminal is at least partially located within the edge of the cover (11), and the terminal is hidden between the housing (10) and the cover (11) when the housing (10) and the cover (11) are in a connected state; after the cover (11) moves a certain distance away from the shell (10), the terminal is exposed for operation; the inner surface inside the rim of the lid (11) is provided with at least one recess (29) opening towards the inside of the housing, the terminal being at least partly located inside the recess (29).

2. A household appliance as claimed in claim 1, characterized in that: the depth of the recess (29) is less than half the thickness of the lid (11).

3. The household appliance according to claim 2, wherein: the depth of the groove (29) is one quarter of the thickness of the cover (11).

4. A household appliance as claimed in claim 1, characterized in that: the connecting part is completely located within the housing (10) when the cover (11) is secured to the housing (10).

5. A household appliance as claimed in claim 1, characterized in that: the connecting part comprises an elastic piece (18), and the terminal is one end of the elastic piece (18); by pushing on the terminal, the elastic member (18) is deformed so that the cover is detached from the housing.

6. The household appliance according to claim 1, wherein: the connecting part is a buckle.

7. The household appliance according to claim 6, wherein: the buckle comprises a first buckle part (17) fixed on the shell (10) and a second buckle part (24) fixed on the cover (11), and the first buckle part (17) and the second buckle part (24) are matched with each other for use.

8. The household appliance of claim 7, wherein: the terminal is part of the second snap (24).

9. The household appliance according to claim 7, wherein: and the safety device also comprises a buffer element (19), wherein the buffer element (19) is positioned between the elastic element (18) and the cover (11).

10. A household appliance as claimed in claim 1, characterized in that: the housing (10) has an opening (22), and the cover (11) and the opening (22) have substantially the same size.

11. A household appliance as claimed in claim 1, characterized in that: further comprising a guide for guiding the movement of the cover (11) relative to the housing (10).

12. The household appliance according to claim 11, wherein: the guide piece comprises a guide projection (21) and a guide groove (23) matched with the guide projection (21).

13. The household appliance according to claim 1, wherein: the household appliance is a refrigerator, a washing machine or a gas stove.