CN112220340A

CN112220340A - Household appliance with door body

Info

Publication number: CN112220340A
Application number: CN201910581764.7A
Authority: CN
Inventors: 张权
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-06-30
Filing date: 2019-06-30
Publication date: 2021-01-15
Anticipated expiration: 2039-06-30
Also published as: CN112220340B

Abstract

The invention relates to a household appliance with a door body, which comprises a box body and the door body, wherein the door body is rotationally arranged on the box body through hinge structures, the hinge structures are two and are respectively arranged at two ends of the box body, each hinge structure comprises a fixed frame fixed with the box body, a rotating arm, a telescopic spring and a first driving motor for driving the rotating arm to rotate, the rear end of the rotating arm is rotationally connected with the fixed frame, and the front end of the rotating arm extends into the door body and can push the door body; the door body can slide into the containing cavity under the action of the driving structure and the sliding structure respectively when the door body rotates outwards relative to the box body to an angle alpha under the action of the hinge structure and is positioned relative to the hinge structure. Compared with the prior art, the door body can be hidden in the box body, and a user is prevented from touching the door body or being scalded by the opened door body in the opening state of the door body.

Description

Household appliance with door body

Technical Field

The invention relates to the field of household appliances, in particular to a household appliance with a door body.

Background

The door bodies of household appliances such as ovens, steam boxes and the like are generally outward opening type, for example, the Chinese invention patent with the patent number ZL201310656372.5 (with the publication number CN103654370A) discloses an integrated machine of a steam box and a microwave oven, which comprises a box body, wherein a cooking chamber furnace chamber is arranged in the box body, and a furnace door assembly is arranged on the front side of the box body. For example, the invention is also an oven as invented in Chinese patent application No. CN201611209041.7 (publication No. CN 106724905A); chinese patent invention No. ZL201610712231.4 (publication No. CN106108694B) discloses household appliances with outward opening door bodies.

This type of domestic appliance such as oven, steam ager, the back is opened to the door body, and whole door body exposes in the front side of box, not only can influence the user and get and put food, and under the door body open mode, the user probably touches the door body when domestic appliance is other moreover to cause unexpected injury. In addition, the temperature of the inner glass of the door body is higher after the household appliances such as an oven and a steam box are used, and under the opening state of the door body, a user is easily scalded when touching the inner glass, and potential safety hazards are buried.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a household appliance with a door body, which can prevent the door body from being exposed to the front side after being opened.

The second technical problem to be solved by the invention is to provide a household appliance with a door body, which can effectively reduce the temperature rise at the bottom.

The technical scheme adopted for solving the first technical problem is as follows: a household appliance with a door body comprises a box body with an opening and the door body capable of covering the opening, and is characterized in that the door body is rotatably arranged on the box body through two hinge structures which are respectively arranged at two ends of the box body, each hinge structure comprises a fixed frame fixed with the box body, a rotating arm, a telescopic spring and a first driving motor for driving the rotating arm to rotate, the rear end of the rotating arm is rotatably connected with the fixed frame, the front end of the rotating arm extends into the door body and can push the door body, one end of the telescopic spring is connected with the fixed frame, the other end of the telescopic spring is connected with the rear end of the rotating arm, and the telescopic spring can enable the door body to have a tendency of moving towards the opening direction of the box body; the door body can slide into the containing cavity under the action of the driving structure and the sliding structure respectively when the door body rotates outwards relative to the box body to an angle alpha under the action of the hinge structure so as to enable the opening of the containing cavity to be opposite and positioned relative to the hinge structure.

Preferably, the two driving structures are respectively arranged at the left end and the right end of the door body, each driving structure comprises a driving gear, a rack and a second driving motor capable of driving the driving gear to rotate, the driving gear is mounted at the front end of the rotating arm, the rack can be meshed with the driving gear, and the rack is fixed on the door body and extends along the height direction of the door body. Therefore, the door body can smoothly slide into the containing cavity through the sliding structure through the driving structure.

Further, preferably, the driving structure further includes a guide groove disposed on the door body, the guide groove is disposed in parallel with the rack, and a guide post is fixed on the rotating arm, the guide post being inserted into the guide groove and capable of sliding back and forth along the guide groove. Thereby can better guide the door body to slide into and accomodate the chamber.

Preferably, a transmission gear is fixed to the driving gear, and a second driving gear is mounted to an output shaft of the second driving motor and engaged with the transmission gear.

Preferably, a push rod capable of pushing the door body is further fixed at the front end of the rotating arm, and the push rod always abuts against the corresponding position of the door body. The rotating arm can better push the door body through the push rod, and when the door body rotates to an angle alpha, the door body and the hinge structure can form more stable relative positioning.

Preferably, the sliding structure comprises two sliding rails and two rollers embedded in the sliding rails and capable of sliding back and forth along the sliding rails, the two sliding rails are respectively arranged on the left side wall and the right side wall of the accommodating cavity, each sliding rail extends along the depth direction of the accommodating cavity, and the two rollers are also respectively fixed at the left end and the right end of the lower part of the door body. Thereby enabling the door body to smoothly slide into the containing cavity through the sliding structure.

In order to enable the door body to slide into the containing cavity more smoothly, the front end of each sliding rail is in an arc shape. Thereby can cooperate the characteristics that the swinging boom rotated with the mount and be connected for the door body slides in accomodating the chamber smoothly.

In order to enable the door bodies to automatically slide into the containing cavities, preferably, a micro switch is mounted on one of the fixing frames, the micro switch is respectively in electrical signal connection with each second driving motor, when the door bodies rotate outwards relative to the box body to an angle alpha, the rear ends of the corresponding rotating arms can trigger the micro switch, and each second driving motor respectively rotates.

Preferably, the door body comprises outer glass, middle glass and inner glass, the left end and the right end of a gap between the outer glass and the middle glass are respectively provided with a mounting block, the mounting blocks are strip-shaped and respectively extend along the height direction of the door body, the mounting blocks are respectively provided with the rack and the guide groove, and the rack and the guide groove respectively extend along the length direction of the mounting blocks.

Compared with the prior art, the invention has the advantages that: the box body is provided with a containing cavity, and the door body can be contained in the containing cavity under the action of the driving structure and the sliding structure after rotating to a certain angle under the action of the hinge structure. Therefore, the door body can be hidden in the box body in the door opening state, and the condition that a user touches the door body or the opened door body is scalded when the door body is in the opening state is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a household appliance in a closed state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of the household appliance in a closed state according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of the household appliance in the state of opening the door according to the embodiment of the present invention;

FIG. 4 is a schematic view of a partial structure of the household appliance in the state of opening the door according to the embodiment of the present invention;

FIG. 5 is a schematic view of another partial structure of the household appliance in the closed state according to the embodiment of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 in another direction;

FIG. 7 is a schematic structural diagram of a door body according to an embodiment of the present invention;

FIG. 8 is a schematic view of a partial structure of a door body according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of a hinge structure according to an embodiment of the present invention;

FIG. 10 is a schematic view of a partial structure of a household appliance in an embodiment of the present invention;

fig. 11 is a schematic structural view in another direction of fig. 10.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 11, a household appliance with a door body is a cooking appliance, specifically an oven, in this embodiment, but may also be other household appliances, such as a disinfection cabinet. The household appliance comprises a box body 1 and a door body 2, wherein the front surface of the box body 1 is opened, the door body 2 can cover the opening of the box body 1, and a cooking cavity 10 with an opened front surface is arranged in the box body 1.

The door bodies 2 are rotatably disposed on the box body 1 through two hinge structures 3, the two hinge structures 3 are respectively disposed at the lower portions of the two ends of the box body 1, and each hinge structure 3 includes a fixing frame 31 fixed to the box body 1, a rotating arm 32, a telescopic spring 33, and a first driving motor 34. Specifically, a rotating shaft 311 and a mounting shaft 312 are fixed in the fixing frame 31 at a front-rear interval, a rear end of the rotating arm 32 is connected to the rotating shaft 311, so that the rotating arm 32 is rotatably disposed on the fixing frame 31, a front end of the rotating arm 32 extends into the door body 2 and can push the door body 2, one end of the extension spring 33 is connected to a rear end of the rotating arm 32, and the other end of the extension spring 33 is connected to the mounting shaft 312, and the door body 2 can move toward the opening direction of the cabinet 1 due to the extension spring 33, a first driving gear 341 is mounted on a power output shaft of the first driving motor 34, a driven gear 342 is mounted on the rotating shaft 311, and the driven gear 342 is engaged with the first driving gear 341, so that the rotating arm 32 can be driven to rotate by the first driving motor 34.

Furthermore, the lower portion of the box body 1 is provided with a receiving cavity 11 with an opening on the front side, the cross section of the receiving cavity 11 is matched with the size of the door body 2, and the height is slightly larger than the thickness of the door body 2, in addition, the household appliance of the embodiment is also provided with a driving structure 8 and a sliding structure 6, when the door body 2 is rotated outwards relative to the box body 1 to an angle α under the action of the hinge structure 3, so as to enable the door body 2 to be opposite to the opening of the receiving cavity 11 and positioned relative to the hinge structure 3, the door body 2 can slide into the receiving cavity 11 under the action of the driving structure 8 and the sliding structure 6 respectively. Therefore, the door body 2 can be hidden in the box body 1 in the opening state of the door body 2, and the situation that a user touches the door body 2 or the opened door body 2 is scalded in the opening state of the door body 2 is avoided. In this embodiment, since the receiving cavity 11 is opened at the lower portion of the box 1 along the horizontal direction, the angle α is 90 degrees, that is, when the door 2 rotates under the hinge structure 3, the door can slide into the receiving cavity 11 under the combined action of the driving structure 8 and the sliding structure 6 in the horizontal direction.

Further, a bottom heating pipe 7 is provided at the bottom of the cooking chamber 10, and the receiving chamber 11 is provided below the bottom heating pipe 7. Through the setting of accomodating chamber 11 like this for separate great space between bottom heating pipe 7 and the box 1 bottom, thereby can reduce the bottom temperature rise.

The sliding structure 6 includes two sliding rails 61 and two rollers 62 embedded in the sliding rails 61 and capable of sliding back and forth along the sliding rails 61, the two sliding rails 61 are respectively disposed on the left and right side walls of the accommodating cavity 11, each sliding rail 61 extends along the depth direction of the accommodating cavity 11, and the two rollers 62 are respectively fixed at the left and right ends of the door 2 adjacent to the box 1, so that the door 2 can slide into the accommodating cavity 11 smoothly through the sliding structure 6. In addition, the front end of each slide rail 61 is arc-shaped, so that the door body 2 can smoothly slide into the storage cavity 11 by matching the characteristic that the rotating arm 32 is rotatably connected with the fixed frame 31. The front end of each slide rail 61 is arc-shaped, and the rear end is straight, so that the door body 2 can smoothly slide into the storage cavity 11 by matching the characteristic that the rotating arm 32 is rotatably connected with the fixing frame 31.

Further, the two driving structures 8 are respectively disposed at the left and right ends of the door body 2, each driving structure 8 includes a driving gear 81, a rack 82, and a second driving motor 83 capable of driving the driving gear 81 to rotate, the driving gear 81 is mounted on the front end of the rotating arm 32, the rack 82 is capable of meshing with the driving gear 81, and the rack 82 is fixed on the door body 2 and extends along the height direction of the door body 2. Thus, the door body 2 can be smoothly slid into the accommodating cavity 11 through the sliding structure 6 by the driving structure 8. Further, preferably, the driving structure 8 further includes a guide groove 84 provided in the door body 2, the guide groove 84 is provided in parallel with the rack 82, a guide post 321 is fixed to the rotating arm 32, and the guide post 321 is inserted into the guide groove 84 and can slide back and forth along the guide groove 84. So that the door body 2 can be better guided to slide into the receiving chamber 11. Preferably, a transmission gear 811 is fixed to the driving gear 81, and a second driving gear 831 is attached to an output shaft of the second driving motor 83, and the second driving gear 831 is engaged with the transmission gear 811.

In addition, in the present embodiment, the door body 2 includes an outer glass 21, an intermediate glass 22, and an inner glass 23, the left and right ends of the gap between the outer glass 21 and the intermediate glass 22 are respectively provided with the mounting blocks 4, each mounting block 4 has a strip shape and extends along the height direction of the door body 2, each mounting block 4 is provided with the rack 82 and the guide groove 84, and the rack 82 and the guide groove 84 extend along the length direction of the mounting block 4. The second drive motors 83 are respectively provided inside the corresponding mounting blocks 4. In addition, each mounting block 4 is further provided with a notch 41, and a push rod 35 capable of pushing the door body 2 is further fixed on the front end of the rotating arm 32, in this embodiment, the push rod 35 is bent, the installation direction of the push rod 35 is perpendicular to the installation direction of the rotating arm 32, and the push rod 35 always abuts against the inner surface of the outer glass 21 of the door body 2. The rotating arm 32 can better push the door body 2 through the push rod 35, and when the door body 2 rotates to the angle alpha, a more stable relative positioning can be formed between the door body 2 and the hinge structure 3. In order to enable the door body 2 to automatically slide into the receiving cavity 11, a micro switch 9 is mounted on one of the fixing frames 31, the micro switch 9 is electrically connected with each second driving motor 83, when the door body 2 rotates outwards relative to the box body 1 to an angle α, the rear end of the corresponding rotating arm 32 can trigger the micro switch 9, and each second driving motor 83 rotates. Meanwhile, a controller (not shown) electrically connected to each first driving motor 34 is further disposed on the box body 1, and an operation key capable of transmitting an operation signal to the controller is disposed on the operation panel 21 above the door body 2, so that the door body 2 can be opened by operating the operation key.

The working process of the invention is as follows:

each first driving motor 34 is rotated through the operation key, the door body 2 is opened under the action of the hinge structure 3, when the door 2 rotates to an angle alpha, the micro switch 9 is triggered, each second driving motor 83 rotates, so that the door body 2 slides into the containing cavity 11 under the matching action of the driving gear 81 and the rack 82, the guide post 321 and the guide groove 84, and the sliding structure 6, when the door body 2 slides to abut against the end part of the containing cavity 11, each second driving motor 83 blocks rotation, the door body 2 stops moving, and the door body 2 can be stably contained in the containing cavity 11.

Claims

1. A household appliance with a door body comprises a box body (1) with an opening and the door body (2) which can cover the opening, it is characterized in that the door body (2) is rotationally arranged on the box body (1) through a hinge structure (3), the two hinge structures (3) are respectively arranged at two ends of the box body (1), each hinge structure (3) comprises a fixed frame (31) fixed with the box body (1), a rotating arm (32), a telescopic spring (33) and a first driving motor (34) driving the rotating arm (32) to rotate, the rear end of the rotating arm (32) is rotationally connected with the fixed frame (31), the front end of the rotating arm extends into the door body (2) and can push the door body (2), one end of the extension spring (33) is connected with the fixed frame (31), the other end is connected with the rear end of the rotating arm (32), the extension spring (33) can make the door body (2) have the tendency of moving towards the opening direction of the box body (1);

the door body (2) can slide into the containing cavity (11) under the action of the driving structure (8) and the sliding structure (6) respectively when the door body (2) rotates outwards relative to the box body (1) to an angle alpha under the action of the hinge structure (3) to be opposite to the opening of the containing cavity (11) and positioned relative to the hinge structure (3).

2. The household appliance according to claim 1, wherein the driving structures (8) are two and are respectively disposed at the left and right ends of the door body (2), each driving structure (8) comprises a driving gear (81), a rack (82) and a second driving motor (83) capable of driving the driving gear (81) to rotate, the driving gear (81) is mounted on the front end of the rotating arm (32), the rack (82) is capable of meshing with the driving gear (81), and the rack (82) is fixed on the door body (2) and extends along the height direction of the door body (2).

3. The household appliance according to claim 2, wherein the driving structure (8) further comprises a guide groove (84) provided on the door body (2), the guide groove (84) is arranged in parallel with the rack (82), and a guide post (321) is fixed on the rotating arm (32), the guide post (321) is inserted into the guide groove (84) and can slide back and forth along the guide groove (84).

4. The household electrical appliance according to claim 2, wherein the driving gear (81) is fixed with a transmission gear (811), and an output shaft of the second driving motor (83) is mounted with a second driving gear (831), and the second driving gear (831) is engaged with the transmission gear (811).

5. The household appliance according to claim 2, wherein a push rod (35) capable of pushing the door body (2) is further fixed on the front end of the rotating arm (32), and the push rod (35) always abuts against the corresponding position of the door body (2).

6. The household appliance according to claim 1, wherein the sliding structure (6) comprises a sliding rail (61) and two rollers (62) embedded in the sliding rail (61) and capable of sliding back and forth along the sliding rail (61), the sliding rails (61) are two and are respectively arranged on the left and right side walls of the receiving cavity (11), each sliding rail (61) extends along the depth direction of the receiving cavity (11), and the rollers (62) are two and are respectively fixed at the left and right ends of the lower part of the door body (2).

7. The household appliance according to claim 6, wherein the front end of each slide rail (61) is shaped like a circular arc.

8. The household appliance according to any of claims 2 to 7, wherein a microswitch (9) is mounted on one of the fixed frames (31), the microswitch (9) is electrically connected to each second driving motor (83), when the door (2) is rotated outwards to an angle α relative to the cabinet (1), the microswitch (9) can be triggered by the corresponding rotating arm (32), and each second driving motor (83) rotates.

9. The household appliance according to claim 3, wherein the door body (2) comprises an outer glass (21), a middle glass (22) and an inner glass (23), the left end and the right end of a gap between the outer glass (21) and the middle glass (22) are respectively provided with a mounting block (4), each mounting block (4) is strip-shaped and respectively extends along the height direction of the door body (2), each mounting block (4) is respectively provided with the rack (82) and the guide groove (84), and the rack (82) and the guide groove (84) respectively extend along the length direction of the mounting block (4).