CN110873507B - Refrigerator with double-layer door structure - Google Patents

Abstract

The invention provides a refrigerator with a double-layer door structure, which comprises: a cabinet defining a storage compartment therein; the inner layer door is connected to the box body in an openable and closable manner, and a through hole is formed at the position, close to the edge, of the inner layer door; an outer door openably and closably connected to an outer side of the inner door, and the inner door and the outer door are independently openable and closable or openable and closable together; an illumination device for illuminating the storage compartment; the lighting switch is arranged on the part of the box body, which is contacted with the inner layer door, and the contact position of the lighting switch is opposite to the through hole; the transition piece is integrally arranged in the through hole in a penetrating mode, and the length of the transition piece is larger than that of the through hole, so that two ends of the transition piece can be respectively abutted by the outer layer door and the contact of the lighting switch. The refrigerator with the double-layer door structure utilizes the mechanical structure to close or open the lighting switch, has simple structure, reduces switch control components and simplifies the control program of a circuit.

Description

Refrigerator with double-layer door structure

Technical Field

The invention relates to the technical field of refrigeration and freezing equipment, in particular to a refrigerator with a double-layer door structure.

Background

A lighting device is generally installed in a refrigerating chamber or a freezing chamber of a refrigerator to improve performance of the refrigerator. The existing lighting switch of the refrigerator with a double-layer door structure achieves the on-off control of a lighting device by respectively installing a Hall switch on a box body and an inner layer door, pre-installing magnets at corresponding positions on the inner layer door and an outer layer door and electromagnetically inducing the opening and closing of the inner layer door and the outer layer door. Two Hall switches are adopted, the control circuit is complex in design, complex in wiring and high in design cost.

Disclosure of Invention

The invention aims to provide a refrigerator with a double-layer door structure, and the refrigerator has simple structure of lighting switch control elements, small quantity and simplified control program of a circuit.

The invention provides the following technical scheme:

a refrigerator having a double door structure, comprising:

a cabinet defining a storage compartment therein;

the inner layer door is connected to the box body in an openable and closable manner, and a through hole is formed at the position close to the edge of the inner layer door;

the outer layer door is connected to the outer side of the inner layer door in an openable and closable manner, and the inner layer door and the outer layer door can be opened and closed independently or together;

an illumination device for illuminating the storage compartment;

the lighting switch is arranged on the contact part of the box body and the inner layer door, and the contact position of the lighting switch is opposite to the through hole;

the transition piece is integrally arranged in the through hole in a penetrating mode, and the length of the transition piece is larger than that of the through hole, so that two ends of the transition piece can be respectively abutted by contacts of the outer layer door and the lighting switch.

Optionally, the contact is an elastic telescopic contact and is configured to close the lighting switch when being ejected outwards and to open the lighting switch when being retracted under stress; and is

The transition piece is also configured such that when one end is abutted by the outer door, the other end extends a length that retracts the contact.

Optionally, a hinge box is provided at the top of the box body for covering a hinge assembly connecting the inner door and the outer door, and the lighting switch is provided in the hinge box with a contact extending from a front end of a box cover of the hinge box.

Optionally, the lighting switch is arranged on a power supply circuit of the lighting device, and the power supply state of the lighting device is controlled through the closing or opening of the lighting switch;

the transition piece is acted by the pressure of the outer layer door so as to control the on/off of the lighting switch.

Optionally, a cap is disposed at an end of the transition piece facing the outer layer door, so as to be abutted by the outer layer door.

Optionally, the transition piece has a first transition portion, a second transition portion and a third transition portion arranged in sequence;

a boss is arranged between the first transition part and the second transition part;

a concave part is arranged between the third transition part and the second transition part;

the first transition part can be abutted by the box body, and the third transition part can be abutted by the outer layer door.

Optionally, a connecting hole is formed by inwards sinking from the third transition part to the sinking part;

the cap comprises a cap body and an inner conductor; one end of the cap body facing the third transition part is inwards recessed to form an inner conductor, and the inner conductor can be matched with the connecting hole; one end of the cap body, which is far away from the third transition part, forms a top surface which can be abutted by the outer layer door.

Optionally, there is an arcuate surface between the cap body and the top surface.

Optionally, the cross-section of the second transition portion has a profiled shape consisting of a rectangle and a circular arc.

Optionally, the second transition portion is composed of a first edge, two second edges, and a third edge;

the first edge has an arc-shaped outer surface;

the third edge is opposite to the first edge;

a second edge is symmetrically arranged between the first edge and the third edge;

grooves are formed between the first edge and the two second edges and between the third edge and the two second edges;

the internal structure of the through hole is matched with the second transition part.

The refrigerator with the double-layer door structure utilizes the mechanical structure to close or open the lighting switch so as to control the lighting device to extinguish or shine, has simple structure, reduces switch control components, simplifies the control program of the circuit, and achieves the aims of reducing the cost and reducing the control problem of the circuit.

Furthermore, the refrigerator with the double-layer door structure utilizes the matching of the transition piece and the cover cap to sense the pressure action of the outer layer door, and is more suitable for the production process flow of the actual refrigerator.

Furthermore, the transition piece main body of the refrigerator with the double-layer door structure is of a special-shaped structure, and the position in the inner layer door is not easy to deviate.

Further, the transition piece and the cover cap are of a hidden design, and the attractiveness of the refrigerator is not affected.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic view of a refrigerator having a double door structure according to one embodiment of the present invention.

Fig. 2 is a schematic plan view of a refrigerator having a double door structure according to one embodiment of the present invention.

Fig. 3 is a schematic exploded view of a light switch and transition piece in cooperation with a double-layer door structure according to one embodiment of the present invention.

Fig. 4 is a schematic assembly view of a light switch and transition piece in cooperation with a double-layer door structure according to one embodiment of the present invention.

FIG. 5 is a schematic view of a light switch and transition piece mated with a hinge box according to one embodiment of the present invention.

Fig. 6 is a schematic top view of the light switch and transition piece of fig. 4 in cooperation with a double door structure.

Fig. 7 is a schematic partial enlarged view of the light switch and transition piece of fig. 6 in cooperation with a double door structure.

Fig. 8 is a schematic cross-sectional view taken along a sectional line a-a in fig. 6.

Fig. 9 is a schematic exploded view of a light switch, transition piece and cap according to one embodiment of the present invention.

FIG. 10 is a schematic perspective view of a transition piece according to one embodiment of the present invention.

FIG. 11 is a schematic side view of a transition piece according to one embodiment of the present invention.

Fig. 12 is a schematic perspective view of a cap according to one embodiment of the present invention.

Detailed Description

Fig. 1 and 2 are schematic views of a refrigerator 100 having a double door structure according to one embodiment of the present invention. The refrigerator 100 having a double-door structure according to an embodiment of the present invention is a side-by-side refrigerator, and may generally include: the door comprises a cabinet 10, a first door body 20, a second door body 30, a lighting device and a lighting switch 60.

The box body 10 has a plurality of storage compartments therein. The storage compartment is used for storing food. The plurality of storage compartments in the embodiment of the invention can comprise a refrigerating compartment and a freezing compartment for frequently storing vegetables, and can also comprise a temperature changing compartment and the like.

The first door body 20 and the second door body 30 are openably and closably provided at a front side of the cabinet 10, respectively, to open and close the storage compartment of the cabinet 10. For example, the first door body 20 may be a left door body and the second door body 30 may be a right door body, wherein at least one of the first door body 20 and the second door body 30 has a double door structure. Those skilled in the art can understand that the refrigerator 100 with the double-layer door structure in the embodiment of the present invention may have a left door body with a double-layer door structure, or have a right door body with a double-layer door structure, or have both a left door body and a right door body with a double-layer door structure, where the specific situation is determined according to a specific design. In one embodiment, the second door body 30 is a dual door structure including an inner door 41 and an outer door 42. The inner door 41 is openably and closably connected to the cabinet 10, and has a through hole 411 formed at a position near the edge. The outer door 42 is connected to the outside of the inner door 41 so as to be openable and closable. The inner door 41 and the outer door 42 can be opened and closed independently or together. In some embodiments, the outer door 42 and the inner door 41 have the same shape and size, so that the outer door 42 and the inner door 41 can be opened at the same time with less effort, and the aesthetic appearance of the refrigerator can be further ensured. Fig. 3 is a schematic exploded view of a light switch and transition piece in cooperation with a double-layer door structure according to one embodiment of the present invention. Fig. 4 is a schematic assembly view of a light switch and transition piece in cooperation with a double-layer door structure according to one embodiment of the present invention. The illumination switch 60 is provided on a portion of the cabinet 10 contacting the inner door 41 at a contact position opposite to the 411 through hole.

The lighting device is used for lighting the storage compartment. The lighting switch 60 is used to control the lighting device to be turned on or off. In one embodiment, the light switch 60 is disposed in series on the power supply circuit of the lighting device. The power supply circuit of the lighting device is electrically connected to the lighting device, the control system of the refrigerator is electrically connected to the lighting switch 60, and the power supply state of the lighting device is controlled by the on and off of the lighting switch 60. The refrigerator 100 having the double door structure according to the embodiment of the present invention further includes a transition piece 70. The transition piece 70 is integrally inserted into the through hole 411, and the length of the transition piece is greater than that of the through hole 411, so that the two ends of the transition piece can be respectively abutted by the contacts of the outer layer door 42 and the lighting switch 60. That is, when the outer door 42 is opened or the inner door 41 and the outer door 42 are opened at the same time, the transition piece 70 loses its pressure, the lighting switch 60 is closed, the power supply circuit of the lighting device is connected, and the lighting device is lighted. In the case where the inner door 41 and the outer door 42 are opened at the same time, if only the inner door 41 is closed, the transition piece 70 has no pressure, the lighting switch 60 remains closed, and the lighting device remains lighted. When the inner door 41 and the outer door 42 are closed at the same time or when the inner door 41 and the outer door 42 are closed successively, the transition piece 70 moves inward under the pressure, the lighting switch 60 is turned off, the power supply circuit of the lighting device is turned off, and the lighting device is turned off. The lighting and extinguishing processes of the lighting device conform to the control logic of the lighting switch required by the refrigerator with the double-layer door structure. The refrigerator with the double-layer door structure utilizes the mechanical structure to close or open the lighting switch, has simple structure, reduces switch control components, simplifies the control program of the circuit, and achieves the purposes of reducing the cost and reducing the circuit control problem.

The illumination switch 60 may be a single member made of an elastic material having a certain elastic deformation, or may be an assembly provided with a spring, a leaf spring, a spring tube, a bellows, a diaphragm, or other members forming a certain elastic deformation. In one embodiment, the contacts of the light switch 60 are resilient retractable contacts and are configured to cause the light switch 60 to close when outwardly ejected and to cause the light switch 60 to open when forced to retract; and the transition piece 70 is also configured such that when one end is abutted by the outer door 42, the other end extends a length that retracts the contacts of the light switch 60. In some embodiments, the transition piece 70 is an elastic element, and may be a single part made of an elastic material with certain elastic deformation, or may be an assembly provided with a spring, a leaf spring, a spring tube, a bellows, a diaphragm, or other parts capable of forming certain elastic deformation.

Fig. 6 is a schematic top view of the light switch and transition piece of fig. 4 in cooperation with a double door structure. Fig. 7 is a schematic partial enlarged view of the light switch and transition piece of fig. 6 in cooperation with a double door structure. Fig. 8 is a schematic cross-sectional view taken along a sectional line a-a in fig. 6. In one embodiment, the transition piece 70 of the refrigerator 100 having the double-door structure according to the embodiment of the present invention is provided with a cap 80 at an end facing the outer door 42 so as to be interfered by the outer door 42, as shown in fig. 6 to 8. The cap 80 and the transition piece 70 are matched, so that the refrigerator is more suitable for the actual refrigerator manufacturing production process, the lighting switch 60 and the transition piece 70 are sequentially installed, the inner layer door 41 is installed, the cap 80 and the transition piece 70 are matched at the through hole 411 of the inner layer door 41, and finally the outer layer door 42 is installed. When the outer door 42 is opened or the inner door 41 and the outer door 42 are opened simultaneously, the cap 80 and the transition piece 70 lose the pressure effect, the lighting switch 60 is closed, the power supply circuit of the lighting device is connected, and the lighting device is lighted. In the case where the inner door 41 and the outer door 42 are opened at the same time, if only the inner door 41 is closed, the cap 80 and the transition piece 70 have no pressure, the lighting switch 60 maintains the closed state, and the lighting device maintains the illumination. When the inner layer door 41 and the outer layer door 42 are closed simultaneously or the inner layer door 41 and the outer layer door 42 are closed successively, the cap 80 and the transition piece 70 move inward under the action of pressure, the lighting switch 60 is turned off, the power supply circuit of the lighting device is disconnected, and the lighting device is turned off. The lighting and extinguishing processes of the lighting device conform to the control logic of the lighting switch required by the refrigerator with the double-layer door structure. The refrigerator with the double-layer door structure utilizes the mechanical structure to close or open the lighting switch, has simple structure, reduces switch control components, simplifies the control program of the circuit, and achieves the purposes of reducing the cost and reducing the circuit control problem. The transition piece 70 and/or the cap 80 may be an elastic element, may be a single part with certain elastic deformation made of elastic material, or may be an assembly provided with a spring, a leaf spring, a spring tube, a bellows, a diaphragm or other parts forming certain elastic deformation.

FIG. 5 is a schematic view of a light switch and transition piece mated with a hinge box according to one embodiment of the present invention. In one embodiment, a hinge box 50 is provided at the top of a cabinet 10 of a refrigerator 100 having a double door structure according to an embodiment of the present invention to cover a hinge assembly 51. The inner door 41 is pivotably provided at a front side of the cabinet 10 by a hinge assembly 51 to open and close the cabinet 10, and the inner door 41 has windows (not shown) formed therethrough at front and rear thereof. The outer door 42 is pivotally connected to the inner door 41 by a hinge assembly 51 to open and close the window. The lighting switch 60 has a lighting switch body 61 and a contact 62. The illumination switch body 61 is disposed in the cover of the hinge box 50. The cover of the hinge box 50 is provided at a side wall thereof opposite to the inner door 41 with a lighting switch hole 52 adapted to a contact 62 of a lighting switch 60, and the contact 62 is protruded from the lighting switch hole 52 as shown in fig. 5. The contacts 62 may be cylindrical contacts as shown in fig. 9.

Fig. 9 is a schematic exploded view of a light switch, transition piece and cap according to one embodiment of the present invention.

FIG. 10 is a schematic perspective view of a transition piece according to one embodiment of the present invention. FIG. 11 is a schematic side view of a transition piece according to one embodiment of the present invention. In one embodiment, the transition piece 70 has a first transition portion 71, a second transition portion 72, and a third transition portion 73 arranged in sequence. Between the first transition 71 and the second transition 72 there is a boss 74. Between the third transition 73 and the second transition 72 there is a recess 75. The first transition portion 71 may be abutted by the cabinet 10, and the third transition portion 73 may be abutted by the outer door 42. As such, the outer surface of the first transition portion 71 of the transition piece 70 is proximate to the contact 62. The second transition portion 72 is disposed through the through hole 411. The boss 74 is caught at the inner surface of the inner door 41 around the through-hole 411. The transition piece main body of the refrigerator with the double-layer door structure is of a special-shaped structure, and the position in the inner layer door is not easy to deviate. The first transition portion 71 may be any shape, such as a square, that is in surface contact with the contact 62.

The second transition portion 72 may be of any shape as a whole, for example, having a cross section with a modified shape composed of a rectangle and a circular arc. In some embodiments, the second transition portion 72 is composed of a first rib 721, two second ribs 722, and a third rib 723, the first rib 721 has an arc-shaped outer surface, the third rib 723 is disposed opposite to the first rib 721, the second ribs 722 are symmetrically disposed between the first rib 721 and the third rib 723, and grooves are formed between the first rib 721 and the two second ribs 722, and between the third rib 723 and the two second ribs 722. The internal structure of the through hole 411 in the inner door 41 matches the second transition portion 72.

As shown in fig. 9 and 12, in one embodiment, the cap 80 includes a cap body 81 and an inner conductor 83. One end of the cap body 81 facing the third transition portion 73 is recessed inward to form an inner conductor 83. Transition piece 70 is recessed inwardly from third transition portion 73 to recessed portion 75 to form attachment aperture 76. The inner conductor 83 may mate with the attachment aperture 76 to secure the cap 80 and the transition piece 70. The end of the cap body 81 remote from the third transition portion 73 forms a top surface 82 against which the outer layer door 42 may abut. The top surface 82 is in surface contact with the inside surface of the outer door 42. Between the cap body 81 and the top surface 82 is an arcuate surface 84.

In some embodiments, an upper molding may be further disposed on the top end of the outer door 42 to encapsulate the outer door 42.

In the description of the present invention, it is to be understood that the terms "inside", "outside", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Claims (9)

1. A refrigerator having a double door structure, comprising:

a cabinet defining a storage compartment therein;

the inner layer door is connected to the box body in an openable and closable manner, and a through hole is formed at the position, close to the edge, of the inner layer door;

an outer door openably and closably connected to an outer side of the inner door, and the inner door and the outer door are independently openable and closable or openable and closable together;

an illumination device for illuminating the storage compartment;

the lighting switch is arranged on the part of the box body, which is contacted with the inner layer door, and the contact position of the lighting switch is opposite to the through hole;

the transition piece is integrally arranged in the through hole in a penetrating way, and the length of the transition piece is greater than that of the through hole, so that two ends of the transition piece can be respectively abutted by the outer layer door and a contact of the lighting switch; wherein

The transition piece is provided with a first transition part, a second transition part and a third transition part which are arranged in sequence;

a boss is arranged between the first transition part and the second transition part;

a recess is arranged between the third transition part and the second transition part;

the first transition portion may be abutted by the case body, and the third transition portion may be abutted by the outer door.

2. The refrigerator according to claim 1,

the contact is an elastic telescopic contact and is configured to enable the lighting switch to be closed when the contact is outwards popped up and enable the lighting switch to be disconnected when the contact is stressed to retract; and is

The transition piece is further configured such that when one end of the transition piece is abutted by the outer door, the other end of the transition piece extends a length that causes the contact to retract.

3. The refrigerator according to claim 1,

the top of the box body is provided with a hinge box which is used for covering a hinge assembly connected with the inner layer door and the outer layer door, the lighting switch is arranged in the hinge box, and a contact of the lighting switch extends out of the front end of a box cover of the hinge box.

4. The refrigerator according to claim 1,

the lighting switch is arranged on a power supply circuit of the lighting device, and the power supply state of the lighting device is controlled through the closing or opening of the lighting switch;

the transition piece is acted by the pressure of the outer layer door so as to control the on/off of the lighting switch.

5. The refrigerator according to claim 1,

and a cover cap is arranged at one end of the transition piece facing the outer layer door so as to be abutted by the outer layer door.

6. The refrigerator according to claim 5,

the third transition part is inwards sunken towards the sunken part to form a connecting hole;

the cap comprises a cap body and an inner conductor; one end of the cap body facing the third transition part is inwards recessed to form an inner conductor, and the inner conductor can be matched with the connecting hole; one end of the cap body, which is far away from the third transition part, forms a top surface, and the top surface can be abutted by the outer layer door.

7. The refrigerator according to claim 6,

an arc-shaped surface is arranged between the cap body and the top surface.

8. The refrigerator according to claim 5,

the cross section of the second transition part is in a special shape consisting of a rectangle and a circular arc.

9. The refrigerator according to claim 5,

the second transition part consists of a first edge, two second edges and a third edge;

the first edge has an arcuate outer surface;

the third edge is opposite to the first edge;

a second ridge is symmetrically arranged between the first ridge and the third ridge from left to right;

grooves are formed between the first edge and the two second edges and between the third edge and the two second edges;

the internal structure of the through hole is matched with the second transition part.

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