CN109387020A

CN109387020A - Refrigerating appliance

Info

Publication number: CN109387020A
Application number: CN201710659886.4A
Authority: CN
Inventors: 雷五八; 韩改莲; 孙冉
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Bosch und Siemens Hausgeraete GmbH
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Hausgeraete GmbH
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2019-02-26

Abstract

The present invention is about a kind of refrigerating appliance.Refrigerating appliance, including main body；First (1)；Other a plurality of doors (2,3)；A door detection unit (5 that setting is associated with described first of N (N >=2), 6), each detection unit includes sensor (52,62) and with magnet (51,61) and it is suitable for generating opening signal (S1 when sensor and magnet separate, S2), one in the sensor and magnet of each detection unit is set to first, another in the sensor and magnet of each detection unit is set in other doors corresponding one, and make each detection unit with corresponding one other be associated with setting；And the controller (7) being connect with multiple detection units.According to an embodiment of the present invention, when a door detection unit generates opening signal, controller determines to open to other corresponding doors of this detection unit association setting, and when each detection unit produces opening signal, controller determines first opening.

Description

Refrigeration device

[ technical field ]

The present invention relates to a refrigerator, and more particularly, to a refrigerator having a plurality of doors.

[ background art ]

CN203629187U discloses a refrigeration appliance having a pair of side-by-side doors, wherein a door detection unit is provided between opposite sides of the side-by-side doors in order to determine whether the side-by-side doors are in an open or closed state.

CN101949627A discloses a refrigeration appliance. Comprising a pair of hinged doors located at the upper part of the refrigerator, a first drawer door located below the hinged doors, and a second drawer door located at the lower part of the refrigerator, wherein the first and second drawer doors extend over the entire width of the refrigerator. The hinge door and the first drawer door are provided with a first opening and closing detection unit and a second opening and closing detection unit respectively to detect whether the corresponding hinge door is opened or not, a third opening and closing detection unit used for detecting whether the second drawer door is opened or not is arranged between the second drawer door and the second drawer door, and whether the first drawer door is opened or closed is sensed by the first opening and closing detection unit, the second opening and closing detection unit or the third opening and closing detection unit. That is, as long as any one of the hinged doors and the second drawer door is opened, the first drawer door is regarded as being opened.

[ summary of the invention ]

It is an object of the present invention to provide an improved refrigeration appliance.

It is another object of the present invention to provide a refrigeration appliance having a more efficient door opening and closing sensing system.

The above object is achieved by the features of the independent claims. Preferred embodiments of the invention are the subject of the figures, the description and the dependent claims.

One aspect of the present invention pertains to a refrigeration appliance. The refrigeration appliance comprises a main body; a first door; a plurality of other gates; n (N > ═ 2) door sensing units disposed in association with said first door, each door sensing unit including a sensor and a magnet and being adapted to generate a door open signal when said sensor and said magnet are separated, one of the sensor and the magnet of each door sensing unit being disposed on said first door and the other of the sensor and the magnet of each door sensing unit being disposed on a corresponding one of said other doors such that each door sensing unit is disposed in association with a corresponding one of said other doors; and a controller connected to the plurality of door detection units; wherein when one of the door sensing units generates a door opening signal, the controller determines that the corresponding other door disposed in association with the door sensing unit is open, and when each of the door sensing units generates the door opening signal, the controller determines that the first door is open.

Therefore, even if the number of the door detection units is less than that of the doors, the refrigeration appliance according to the embodiment of the invention can determine which door is opened, thereby being beneficial to improving the efficiency and accuracy of the opening and closing detection system of the refrigeration appliance door.

The door sensing unit of the present invention may sense the presence of a magnet or the strength of a magnet (within an effective range), and may include, for example, a Magneto-resistive Sensor (Magneto-resistive Sensor), a Hall Sensor (Hall Sensor), or a Reed Switch (Reed Switch).

In one possible embodiment, the refrigeration appliance may have 1+ N doors, wherein N door detection units are each arranged in association with the first door. In another possible embodiment, the refrigeration device may have more than 1+ N doors and a plurality of N door detection units, for example the refrigeration device may also have at least one door detection unit not arranged in the closed position with respect to the first door to detect the opening and closing of more doors of the refrigeration device independently of said first door.

In one possible embodiment, when N (1< N) gate detection units generate the gate-open signal, the controller determines that the other gates corresponding to the N gate detection units, respectively, are open. Since the door detection unit provided in association with the first door generates the door opening signal when the first door is opened and the other doors are closed, if there are only n door opening signals, it can be determined that the first door is closed and n other doors corresponding to the door opening signals are opened.

In one possible embodiment, the other doors include a second door and a third door, projections of the second door and the first door in the left-right direction and the vertical direction are not overlapped, the first door and the second door include a first corner portion and a second corner portion which are oppositely arranged, one of a sensor and a magnet of the door detection unit corresponding to the second door is arranged at the first corner, and the other of the sensor and the magnet of the door detection unit corresponding to the second door is arranged at the second corner. On the one hand, the first sensor and the magnet are respectively provided on a pair of diagonally arranged doors, so that the selectivity of how the door sensing unit is arranged is more, for example, it is possible to provide a plurality of door sensing unit sensors on one door. On the other hand, since the first sensor and the magnet are respectively provided at the corner portions of the corresponding one of the doors, the first sensor and the magnet come close to each other to be paired when the first door and the second door are closed. This arrangement overcomes the technical prejudice of the prior art that the first sensor and the magnet can only be arranged between two doors or a body and a door, which project at least partially overlapping in at least one direction.

In one possible embodiment, the third door and the second door are disposed side by side above or below the first door.

In one possible embodiment, the other doors include a fourth door disposed side-by-side with the first door.

In a possible embodiment the sensor in the gate detection unit/units is/are arranged at the first gate, but according to a preferred embodiment of the invention the sensor of each of said gate detection units is arranged at said first gate.

Another aspect of the invention relates to a refrigeration appliance. The refrigeration appliance comprises a main body; a first door; a second door and a third door; a first door sensing unit including a first sensor and a first magnet, one of the first sensor and the first magnet being disposed at the first door, and the other of the first sensor and the first magnet being disposed at the second door, the first sensor generating a first door opening signal when the first sensor and the first magnet are separated; a second door detecting unit including a second sensor and a second magnet, one of the second sensor and the second magnet being disposed at the first door, and the other of the second sensor and the second magnet being disposed at the third door, the second sensor generating a second door opening signal when the second sensor and the second magnet are separated; and a controller configured to: the controller judges that the second door is opened if only the first door detection unit of the first door detection unit and the second door detection unit generates the first door opening signal; the controller judges that the third door is opened if only the second door detection unit of the first door detection unit and the second door detection unit generates the second door opening signal; the controller determines that the first door is opened if the first door detection unit and the second door detection unit generate the first door opening signal and the second door opening signal, respectively.

In one possible embodiment, the second door and the third door are arranged side by side left and right.

In one possible embodiment, the projections of the second door and the first door in the vertical direction are staggered and the projections in the left-right direction are also staggered.

In one possible embodiment, the first door includes a first corner portion, the second door includes a second corner portion opposite the first corner portion, one of the first sensor and the first magnet is disposed at the first corner portion, and the other of the first sensor and the first magnet is disposed at the second corner portion.

In one possible embodiment, the door comprises a fourth door, the first door and the fourth door are arranged side by side left and right, and the second door and the third door are arranged side by side left and right above or below the first door and the fourth door.

Yet another aspect of the present invention relates to a refrigeration appliance. The refrigeration appliance comprises: a main body; a first door, a second door, a third door, and a fourth door; a first door sensing unit including a first sensor and a first magnet, one of the first sensor and the first magnet being disposed at the first door, and the other of the first sensor and the first magnet being disposed at the second door, the first sensor generating a first door opening signal when the first sensor and the first magnet are separated; a second door detecting unit including a second sensor and a second magnet, one of the second sensor and the second magnet being disposed at the first door, and the other of the second sensor and the second magnet being disposed at the third door, the second sensor generating a second door opening signal when the second sensor and the second magnet are separated; a third door detecting unit including a third sensor and a third magnet, one of the third sensor and the third magnet being disposed at the first door, and the other of the third sensor and the third magnet being disposed at the fourth door, the third sensor generating a third door opening signal when the third sensor and the third magnet are separated; and a controller configured to: if only the first door detection unit of the first door detection unit, the second door detection unit and the third door detection unit generates the first door opening signal, the controller judges that the second door is opened; if only the second door detection unit generates the second door opening signal, the controller judges that the third door is opened; if only the third door detection unit of the first door detection unit, the second door detection unit and the third door detection unit generates the third door opening signal, the controller judges that the fourth door is opened; the controller determines that the first door is opened if the first door detection unit, the second door detection unit, and the third door detection unit generate the first door opening signal, the second door opening signal, and the third door opening signal, respectively.

In one possible embodiment, the first sensor, the second sensor, and the third sensor are located at the first door.

The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. Wherein,

FIG. 1 is a schematic front view of a refrigeration appliance according to one embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic partial perspective view of a refrigeration appliance according to an embodiment of the present invention with the fourth door removed;

FIG. 4 is a schematic configuration diagram of a refrigeration appliance according to an embodiment of the present invention;

FIG. 5 is a schematic front view of a refrigeration appliance according to another embodiment of the present invention;

fig. 6 is a schematic front view of a refrigeration appliance according to yet another embodiment of the present invention.

[ detailed description of the invention ]

Referring to fig. 1, 2 and 3, the refrigeration appliance 100 includes a main body 200, and first, second, third and fourth doors 1, 2, 3 and 4 connected to the main body 200 to close a storage compartment or a portion of the storage compartment within the corresponding main body 200.

In the present embodiment, the first door 1 and the fourth door 4 are provided side by side in the left and right. The projections of the first door 1 and the fourth door 4 in the left-right direction at least partially overlap. In the present embodiment, the first door 1 and the fourth door 4 have the same height.

The second door 2 and the third door 3 are arranged side by side in the left-right direction. The projections of the second door 2 and the third door 3 in the left-right direction at least partially overlap. In the present embodiment, the second door 2 and the third door 3 have the same height.

In one embodiment, the first door 1 and the fourth door 4 are french-door doors for closing a refrigerating compartment provided at an upper portion of the refrigerator appliance 100. The first door 1 and the fourth door 4 may be connected to the main body 200 by hinges.

In one embodiment, the second door 2 and the third door 3 are also connected to the main body 200 by hinges to close the storage compartment located at the lower portion of the refrigeration appliance 100. The second door 2 and the third door 3 may be used to close different storage compartments, respectively, and also to close a corresponding portion of one storage compartment.

It should be understood that the present invention is also applicable to the case where at least one of the first door, the second door, the third door, and the fourth door is a drawer type door.

The first door 1 and the fourth door 4 are positioned above the second door 2 and the third door 3. The first door 1 is located directly above the third door 3, and the projections of the first door 1 and the third door 3 overlap in the vertical direction.

The second door 2 is located directly below the fourth door 4, and the projections of the second door 2 and the fourth door 4 overlap in the vertical direction. Projections of the second door 2 and the first door 1 on the opposite side of the refrigerator 100 in the left-right direction are offset in the vertical direction. Projections of the first door 1 and the second door 2 located on the opposite side of the refrigerator 100 in the vertical direction in the left-right direction are also staggered.

As shown in fig. 1, the gaps between the first door 1, the second door 2, the fourth door 4, and the third door 3 form a cross shape.

In the present embodiment, the first door 1 includes a first corner portion 11 at a lower portion thereof near the second door 2 and the fourth door 4. The first longitudinal side wall 12 and the first horizontal side wall 13 of the first door 1 are connected at a first corner 11.

The second door 2 includes a second corner portion 21 at an upper portion adjacent to the first door 1 and the third door 3. The second longitudinal sidewall 22 and the second horizontal sidewall 23 of the second door 2 are connected at the second corner portion 21. The first corner portion 11 and the second corner portion 21 are disposed opposite to each other.

Although the projections of the first door 1 and the second door 2 in the vertical direction and the horizontal direction are not overlapped, the second corner 21 of the second door 2 is closest to the first door 1 compared to other portions of the second door 2. Similarly, the first corner 11 of the first door 1 is closest to the second door 2 compared to other portions of the first door 1.

The refrigeration appliance 100 comprises a contactless first door detection unit 5. The first door sensing unit 5 includes a first magnet 51 and a first sensor 52 for cooperating with the first magnet 51. In one embodiment, the relative positions of the first and second doors 1 and 2 are determined by whether the first sensor 52 senses the magnetic field of the first magnet 52/the sensed magnetic field strength is higher than a preset value. When the first sensor 52 and the first magnet 51 are separated to be out of the sensing range, the first door detecting unit 5 generates the first door opening signal S1, for example, the switch in the first sensor 52 is in the off state.

In the present embodiment, the first magnet 51 is disposed at the second corner portion 21, and the first sensor 52 is disposed at the first corner portion 11. The projections of the first magnet 51 and the first sensor 52 in the vertical direction and the left-right direction are offset and do not coincide with each other.

In order to reduce the interval between the first magnet 51 and the first sensor 52, the first magnet 51 is disposed along the second longitudinal sidewall 22 and the second horizontal sidewall 23 of the second door 2.

Accordingly, the first sensor 52 is also disposed along the first longitudinal side wall 12 of the first door 1 and the first horizontal side wall 13 connected to the first longitudinal side wall 12.

In order to further reduce the interval between the first magnet 51 and the first sensor 52, the second door 2 includes a protrusion portion 25 protruding toward the first door 1, and the first magnet 51 is disposed at the protrusion portion 25. The protrusion 25 may protrude toward the second and fourth doors 2 and 4 in a vertical direction to reduce a distance between the first magnet 51 and the first sensor 52 in the vertical direction, and/or protrude toward the second and third doors 2 and 3 in a left-right direction to reduce a distance between the first magnet 51 and the first sensor 52 in the left-right direction.

In the present embodiment, the protrusion 25 laterally extends along the top of the second door 2 near or over half the width of the second door 2 to reduce the visual impact of the protrusion 25 on the second door 2.

In another embodiment, a protrusion protruding toward the second door 2 may also be provided on the first door 1 to dispose the first sensor 52.

Preferably, the distance between the first sensor 52 and the first magnet 51 in the vertical direction is not more than 25 mm, and the distance in the left-right direction is not more than 15 mm. In the present embodiment, the distance between the first sensor 52 and the first magnet 51 in the vertical direction is not more than 15 mm, and the distance in the left-right direction is not more than 10 mm.

The refrigeration appliance 100 comprises a contactless second door detection unit 6. The second door detecting unit 6 includes a second magnet 61 and a second sensor 62 to cooperate with the second magnet 61. One of the second magnet 61 and the second sensor 62 is provided to the first door 1, and the other of the second magnet 61 and the second sensor 62 is provided to the third door 3.

When the second sensor 62 and the second magnet 61 are separated (e.g., when the first door 1 or the third door 3 is opened), the second door detecting unit 6 generates the second door opening signal S2, e.g., one switch of the second sensor 62 is in an off state.

In a preferred embodiment, the second sensor 62 is provided to the first door 1, and the second magnet 61 is provided to the third door 3. Thus, the first sensor 52 and the second sensor 62 are both provided at the first door 1, and when the first magnet 51 and the second magnet 61 do not require power/transmit signals, the second door 2 and the third door 3 may not have to be wired for the first magnet 51 and the second magnet 61, which is advantageous to simplify the configuration of the refrigeration appliance 100.

The distance between the first magnetic induction unit 5 and the second magnetic induction unit 6 in the width direction along the refrigeration appliance 100 is greater than 40 mm.

In a preferred embodiment, the second sensor 62 and the second magnet 61 are located at a middle section of a respective one of the second door and the third door.

As shown in fig. 4, the refrigeration appliance 100 includes a controller 7. The controller 7 is connected to the first door sensing unit 5 and the second door sensing unit 6.

The controller 7 determines that the second door 2 is opened if only the first door detecting unit 5 of the first and second door detecting units 5 and 6 generates the first door opening signal S1.

The controller 7 determines that the third door 3 is opened if only the second door detecting unit 6 of the first and second door detecting units 5 and 6 generates the second door opening signal S2.

The controller 7 determines that the second and third doors 2 and 3 are not opened if the first and second door detecting units 5 and 6 generate the first and second door opening signals S1 and S2, respectively.

In the present embodiment, the controller 7 may determine whether the first door 2 is opened based on the door opening signals of the first door detecting unit 5 and the second door detecting unit 6. When the first door detecting unit 5 generates the first door opening signal S1 due to the separation of the first sensor 52 and the first magnet 51 and the second door detecting unit 6 generates the second door opening signal S2 due to the separation of the second sensor 62 and the second magnet 61, the controller 7 determines that the first door 1 is opened.

The refrigeration appliance 100 may further comprise a lighting unit 8 connected to the controller 7. When the controller 7 determines that the first door 1 is opened, the controller 7 may turn on the lighting unit 8 to, for example, illuminate the storage room corresponding to the first door 1.

The refrigeration appliance 100 may further include a third door detecting unit 9 to detect whether the fourth door 4 is opened. The third door sensing unit may include a third sensor (not shown) provided to the main body 200 and a third magnet (not shown) positioned at the fourth door. When the fourth door 4 is opened, the third sensor generates a third door opening signal so that the controller 7 can determine that the fourth door 4 is opened. In the present embodiment, the third door detecting unit 9 is provided independently of the first door 1.

Fig. 5 is a schematic front view of a refrigeration appliance according to another embodiment of the present invention. The difference from the above embodiment is that the third door detecting unit 9 is arranged between the first door 1 and the fourth door 4, i.e. the third door detecting unit 9 is also arranged in connection with the first door 1. The arrangement of the first gate detecting unit 5 and the second gate detecting unit 6 may be the same as the above embodiment.

As shown in fig. 5, the third door detecting unit 9 includes a third sensor 92 provided to one of the first door 1 and the fourth door 4 and a third magnet 91 of the other of the first door 1 and the fourth door 4. Preferably, the first sensor 52, the second sensor 62 and the third sensor 92 are all provided on the same door, i.e., the first door 1.

When the first door 1 and the fourth door 4 are closed, the third magnet 91 and the third sensor 92 are opposed. When the first door 1 or the fourth door 4 is opened, the third sensor 92 and the third magnet 91 are separated to generate a third door opening signal S3.

The controller 7 determines the open/close state of the first door 1 and/or the fourth door 4 based on the signal of the third door opening signal S3.

In a preferred embodiment, if only the first door sensing unit 5 among the first, second and third door sensing units generates the first door opening signal S1, the controller 7 determines that the second door 2 is opened.

If only the second door detecting unit 6 of the first, second and third door detecting units generates the second door opening signal S2, the controller 7 determines that the third door 3 is opened.

If only the third door detecting unit 9 among the first, second and third door detecting units generates the third door opening signal S3, the controller 7 determines that the fourth door 4 is opened.

The controller 7 determines that none of the second, third and fourth doors 2, 3 and 4 is opened if the first, second and third door detecting units generate the first, second and third door opening signals S1-S3, respectively. According to the present invention, if the first, second and third door detecting units generate the first door opening signal S1, the second door opening signal S2 and the third door opening signal S3, respectively, the controller 7 determines that the first door 1 is opened.

If two of the first, second, and third door detection units generate door opening signals, the controller 7 determines that the first door 1 is not opened and the doors corresponding to the two door opening signals are opened. For example, when the first and second door detection units generate the first door opening signal and the second door opening signal, respectively, the controller 7 determines that the second door 2 provided in association with the first door detection unit 5 is opened, determines that the third door 3 provided in association with the second detection unit 6 is opened, and determines that the first door 1 is not opened.

Since the cases in which the second door 2, the fourth door 4, and the third door 3 are all opened rarely occur, the open door detecting method according to the above-described embodiment can determine which door/doors are opened with high accuracy, so that the refrigeration appliance 100 can be controlled with high accuracy.

For two pairs of doors arranged up and down, because the sensor and the corresponding magnet in one door detection unit can be arranged on two doors in a diagonal manner, the arrangement mode of the door detection unit can be more flexible, and therefore, a scheme which is beneficial to simplifying the wiring of the refrigeration appliance can be expected.

Fig. 6 is a schematic front view of a refrigeration appliance according to yet another embodiment of the present invention. The refrigeration appliance comprises a first door 1, a second door 2, a third door 3 and a fourth door 4. Wherein the second door 2 and the third door 3 are positioned above the first door 1 and the fourth door 4 is positioned below the first door 1.

The refrigeration appliance comprises a first door detection unit 5 located between the first door 1 and the second door 2. The first door sensing unit 5 includes a first sensor 51 provided to one of the first door 1 and the second door 2 and a first magnet 52 provided to the other of the first door 1 and the second door 2.

The refrigeration appliance comprises a second door detection unit 6 located between the first door 1 and the third door 3. The second door detecting unit 6 includes one second sensor 61 provided to the first door 1 and the third door and a second magnet 62 provided to the other of the first door 1 and the third door 3.

Similarly, the refrigeration appliance comprises a third door detection unit 9 located between the first door 1 and the fourth door 4. The third door detecting unit 9 includes one third sensor 91 provided to the first door 1 and the fourth door 4 and a third magnet 92 provided to the other of the first door 1 and the fourth door 4.

Similarly to the above-described door opening detection method, if only the first door detection unit 5 of the first, second, and third door detection units generates the first door opening signal S1, the controller 7 determines that the second door 2 is opened.

The controller 7 determines that the third door 3 is opened if only the second door detecting unit 6 among the first, second and third door detecting units generates the second door opening signal S2.

The controller 7 determines that the fourth door 4 is opened if only the third door detecting unit 9 among the first, second and third door detecting units generates the third door opening signal S3.

The controller 7 determines that none of the second, third and fourth doors 2, 3 and 4 is opened if the first, second and third door sensing units generate the first door opening signal S1, the second door opening signal S2 and the third door opening signal S3, respectively. Preferably, the controller 7 determines that the first door 1 is opened if the first, second and third door detecting units generate the first door opening signal S1, the second door opening signal S2 and the third door opening signal S3, respectively.

If two of the first, second, and third door detection units generate door opening signals, the controller 7 determines that the first door 1 is not opened and the doors corresponding to the two door opening signals are opened. For example, when the first and second door detection units generate the second door opening signal and the third door opening signal, respectively, the controller 7 determines that the third door 3 provided in association with the second door detection unit 6 is opened, determines that the fourth door 9 provided in association with the third detection unit 9 is opened, and determines that the first door 1 is not opened.

In the above embodiment, the refrigeration appliance has two or three door detection units associated with the first door to detect which of three or four doors including the first door is opened. It will be appreciated that the invention is equally applicable to the case of more doors arranged in association with the first door. For example, the refrigeration appliance may comprise a first door, a plurality of further doors, N (N > ═ 2) door detection units arranged in association with said first door, each door detection unit comprising a sensor and a magnet and being adapted to generate a door opening signal when the sensor and the magnet are separated. One of the sensor and the magnet of each door sensing unit is provided to the first door to be disposed in association with the first door. The other of the sensor and the magnet of each door sensing unit is disposed at a corresponding one of the other doors such that each door sensing unit is disposed in association with a corresponding one of the other doors. The controller determines that the respective other doors provided in association with one of the door detecting units are opened when the door opening signal is generated by the door detecting unit, and determines that the first door is opened when the door opening signal is generated by each of the door detecting units.

Further, when N (1< N) gate detection units generate the gate-open signal, the controller determines that the other gates corresponding to the N gate detection units, respectively, are open.

The various embodiments of the individual components described in connection with fig. 1 to 6 may be combined with each other in any given way to achieve the advantages of the invention. In addition, the present invention is not limited to the illustrated embodiments, and other means than those shown may be generally used as long as the same effects are obtained.

Claims

1. A refrigeration appliance (100) comprising:

a main body (200);

a first door (1);

a plurality of further gates (2, 3; 2, 3, 4);

n (N > ═ 2) door detecting units (5, 6; 5, 6, 9) arranged in association with the first door, each door detecting unit comprising a sensor (52, 62; 52, 62, 92) and a magnet (51, 61; 51, 61, 91) and being adapted to generate a door opening signal (S1, S2; S1, S2, S3) when the sensor and the magnet are separated, one of the sensor and the magnet of each door detecting unit being arranged at the first door and the other of the sensor and the magnet of each door detecting unit being arranged at a respective one of the other doors, such that each door detecting unit is arranged in association with a respective one of the other doors; and

a controller (7) connected to the plurality of door detection units,

wherein when one of the door sensing units generates a door opening signal, the controller determines that the corresponding other door disposed in association with the door sensing unit is open, and when each of the door sensing units generates the door opening signal, the controller determines that the first door is open.

2. The refrigeration appliance according to claim 1, wherein when the N (1< N) door detecting units generate the door opening signals, the controller determines that the other doors corresponding to the N door detecting units, respectively, are opened.

3. The refrigeration appliance according to claim 1, wherein the other door comprises a second door (2), the projections of the second door and the first door in the left-right direction and the vertical direction are not overlapped, the first door and the second door comprise a first corner portion (11) and a second corner portion (21) which are oppositely arranged, one of the sensor and the magnet of the door detection unit corresponding to the second door is arranged at the first corner, and the other one of the sensor and the magnet of the door detection unit corresponding to the second door is arranged at the second corner.

4. The refrigeration appliance according to claim 3 wherein said other doors comprise a third door, said third door and said second door being positioned side-by-side above or below said first door.

5. The refrigeration appliance according to claim 1 wherein said other door comprises a fourth door, said fourth door being positioned alongside said first door.

6. The refrigeration appliance according to claim 1, wherein the sensor of each of said door sensing units is disposed at said first door.

7. A refrigeration appliance (100) comprising:

a main body (200);

a first door (1);

a second door (2) and a third door (3);

a first door sensing unit (5) including a first sensor (52) and a first magnet (51), one of the first sensor and the first magnet being disposed at the first door, the other of the first sensor and the first magnet being disposed at the second door, the first sensor generating a first door opening signal when the first sensor and the first magnet are separated (S1);

a second door detecting unit (6) including a second sensor (62) and a second magnet (61), one of the second sensor and the second magnet being disposed to the first door, the other of the second sensor and the second magnet being disposed to the third door, the second sensor generating a second door opening signal when the second sensor and the second magnet are separated (S2);

a controller (7) configured to: the controller judges that the second door is opened if only the first door detection unit of the first door detection unit and the second door detection unit generates the first door opening signal; the controller judges that the third door is opened if only the second door detection unit of the first door detection unit and the second door detection unit generates the second door opening signal; the controller determines that the first door is opened if the first door detection unit and the second door detection unit generate the first door opening signal and the second door opening signal, respectively.

8. The refrigeration appliance according to claim 7, wherein said second door and said third door are disposed side-by-side left and right.

9. The refrigeration appliance according to claim 7, wherein the projections of said second door and said first door in the vertical direction are offset and the projections in the left-right direction are also offset.

10. The refrigeration appliance according to claim 7, wherein said first door includes a first corner portion (11), said second door includes a second corner portion (21) opposite said first corner portion, one of said first sensor and said first magnet being disposed at said first corner portion, the other of said first sensor and said first magnet being disposed at said second corner portion.

11. The refrigeration appliance according to claim 7, comprising a fourth door (4), wherein said first door and said fourth door are arranged side by side from left to right, and said second door and said third door are arranged side by side from left to right above or below said first door and said fourth door.

12. A refrigeration appliance (100) comprising:

a main body (200);

a first door (1), a second door (2), a third door (3) and a fourth door (4);

a third door detecting unit (9) including a third sensor (92) and a third magnet (91), one of the third sensor and the third magnet being disposed to the first door, the other of the third sensor and the third magnet being disposed to the fourth door, the third sensor generating a third door opening signal when the third sensor and the third magnet are separated (S3);

a controller (7) configured to: if only the first door detection unit of the first door detection unit, the second door detection unit and the third door detection unit generates the first door opening signal, the controller judges that the second door is opened; if only the second door detection unit generates the second door opening signal, the controller judges that the third door is opened; if only the third door detection unit of the first door detection unit, the second door detection unit and the third door detection unit generates the third door opening signal, the controller judges that the fourth door is opened; the controller determines that the first door is opened if the first door detection unit, the second door detection unit, and the third door detection unit generate the first door opening signal, the second door opening signal, and the third door opening signal, respectively.

13. The refrigeration appliance according to claim 12 wherein said first sensor, second sensor and third sensor are located at said first door.

14. The refrigeration appliance according to claim 12, wherein the projections of said second door and said first door in the vertical direction are offset and the projections in the left-right direction are also offset.

15. The refrigeration appliance according to claim 12, wherein said first door includes a first corner portion (11), said second door includes a second corner portion (21) opposite said first corner portion, one of said first sensor and said first magnet being disposed at said first corner portion, the other of said first sensor and said first magnet being disposed at said second corner portion.