CN220512706U - Household appliance - Google Patents

Abstract

The present utility model relates to a household appliance comprising: a case; the first edge of the box door is rotationally connected with the box body; a door opening mechanism comprising: the first magnet is arranged at the second edge of the box door, and the second edge and the first edge are oppositely arranged in parallel; the second magnet is arranged on the box body and is opposite to the first magnet; the second magnet is an electromagnet; the second magnet is electrified, so that the magnetism of the second magnet is opposite to that of the first magnet, the second magnet and the first magnet can repel each other, the first magnet is matched with the second magnet to be positioned at the second edge of the door, larger rotating moment can be provided, the door can be easily pushed to rotate and automatically open, and the door opening function is realized. In addition, when the second magnet is not energized, the door opening mechanism does not provide a door opening force, and the door can be kept in a closed state. The scheme has simple structure, is favorable for simplifying the structure of the door opening mechanism and reduces the production cost of household appliances.

Description

Household appliance

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a household appliance.

Background

With the development of technology, household appliances such as ovens and dish washers are becoming more popular. With the improvement of living standard, the performance requirements of people on household appliances such as ovens, dish washers and the like are also higher and higher.

Currently, in some related household appliances, the household appliance generally includes a box body and a box door disposed on the front side of the box body, and the box door adopts a hinge or other auxiliary door opening devices to open or close the box door, but does not realize a complete automatic door opening function, so that the user experience is poor. Some household appliances adopt an automatic door opening structure to realize the door opening function, but the structure is complex and the cost is high.

Disclosure of Invention

The utility model aims to provide a household appliance, so as to optimize the door structure of the household appliance in the related technology and realize the automatic door opening function of the household appliance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, there is provided a home appliance including a case forming a housing outside the home appliance; an inner cavity is formed in the box body, and an opening communicated with the inner cavity is formed in the front part of the box body; the box door is arranged at the front side of the box body, and the first edge of the box door is rotationally connected with the box body and used for opening and closing the opening; a door opening mechanism comprising: the first magnet is arranged on the box door and at the second edge of the box door, and the second edge and the first edge are arranged in parallel and opposite; the second magnet is arranged on the box body and is opposite to the first magnet; the second magnet is an electromagnet; when the door is closed, and after the second magnet is electrified, the second magnet and the first magnet can repel each other so as to push the door to rotate and automatically open.

In some embodiments of the present application, the first edge of the door is located at the bottom end side of the door, and the top of the door is convexly provided with a lock tongue; a door lock mechanism which is arranged opposite to the lock tongue is arranged in the box body; when the door is closed, the door lock mechanism can be clamped with the lock tongue so as to lock the door; and the door lock mechanism can be separated from the lock tongue to unlock the door.

In some embodiments of the present application, the household appliance further includes a controller, where the controller is disposed inside the case, and the controller is respectively in signal connection with the door lock mechanism and the second magnet; when the door is closed, the controller can control the door lock mechanism to unlock the door and control the second magnet to be electrified, so that the second magnet and the first magnet repel each other to push the door to be automatically opened.

In some embodiments of the present application, a mounting groove is disposed in the box door, and the mounting groove is disposed below a top wall of the box door; the first magnet is installed in the installation groove and is arranged facing the second magnet.

In some embodiments of the present application, the mounting groove is directly below the lock tongue, and the lock tongue and the mounting groove are respectively arranged on the upper side and the lower side of the top wall of the box door.

In some embodiments of the present application, a limiting rib is disposed on the back side of the mounting groove; when the first magnet is arranged in the mounting groove, the limiting rib is clamped on the back side of the first magnet.

In some embodiments of the present application, supporting ribs are protruding in the mounting groove, and the supporting ribs and the limiting ribs are arranged at intervals in front-back direction; the first magnet is clamped between the supporting rib and the limiting rib.

In some embodiments of the present application, an inlet and an outlet are formed in the bottom of the installation groove, a limiting piece is arranged at the inlet and the outlet, and the limiting piece is detachably clamped at the inlet and the outlet and abuts against the bottom of the first magnet, so that the first magnet is locked and fixed in the installation groove.

In some embodiments of the present application, the limiting part is provided with a fixing arm extending upwards in a protruding manner, and the fixing arm is provided with a clamping hook in a protruding manner; the inner wall of the mounting groove is provided with a bayonet matched with the clamping hook; the fixing arm can extend into the mounting groove to enable the clamping hook to be clamped at the bayonet, and the limiting piece abuts against the supporting rib so as to fix the limiting piece at the inlet and the outlet.

In some embodiments of the present application, a notch area is provided on the back side of the mounting groove, and the notch area is provided on the lower side of the limiting rib; when the first magnet is arranged in the mounting groove, at least part of the back surface of the first magnet is exposed out of the notch area, one side of the box door facing the box body is provided with an inner layer plate, the top of the inner layer plate covers the notch area, and the top wall of the inner layer plate is propped against the limit rib; when the door is closed, the inner layer plate and the limiting ribs are clamped between the first magnet and the second magnet.

In some embodiments of the present application, a door frame is provided at the front of the box, and the opening is provided at the center of the door frame; the second magnet is arranged on the back side of the door frame.

In some embodiments of the present application, a fixing frame is disposed on the back side of the door frame, and a receiving groove is concavely disposed on a side of the fixing frame facing the door frame; the second magnet is arranged in the accommodating groove and clamped and fixed between the fixing frame and the back surface of the door frame.

In some embodiments of the present application, two sides of the front end of the fixing frame are respectively provided with a fixing plate; the fixed plate is bent outwards from the front end slot opening of the accommodating slot and extends, and the fixed plate is fixed on the back side of the door frame.

In some embodiments of the present application, the axle center department of second magnet is equipped with the mounting hole, be equipped with on the mount with the locating hole of mounting hole relative arrangement, the second magnet passes through the locating hole with the mounting hole is fixed in the storage tank.

The embodiment of the utility model has the following positive effects: in the household appliance provided by the embodiment of the utility model, the door opening mechanism is arranged on the front wall of the box body and the box door to provide door opening force, the door opening mechanism comprises the first magnet arranged on the box door and the second magnet arranged on the box body, the first magnet is arranged at the second edge of the box door and is matched with the second magnet to be opposite to the first magnet, and the second magnet is an electromagnet. In addition, when the second magnet is not energized, the door opening mechanism does not provide a door opening force, and the door can be kept in a closed state. The scheme has simple structure, is favorable for simplifying the structure of the door opening mechanism and reduces the production cost of household appliances.

Drawings

Fig. 1 is a schematic view of a structure of a home appliance according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of fig. 1 in another state.

Fig. 3 is a schematic view of a part of the structure of the inside of the home appliance of fig. 1.

Fig. 4 is a schematic view of a part of the structure in fig. 3.

Fig. 5 is a schematic view of the door and door opening mechanism of fig. 4.

Fig. 6 is an exploded view of fig. 5.

Fig. 7 is a schematic view of the hinge mechanism of fig. 6.

Fig. 8 is a schematic view of the structure of fig. 7 with the cover removed.

Fig. 9 is an enlarged schematic view of the area a in fig. 4.

Fig. 10 is an enlarged schematic view of the area B in fig. 6.

Fig. 11 is a side view of fig. 4.

Fig. 12 is a schematic view of the structure of fig. 11 in another state.

Fig. 13 is a schematic view of the structure of the second magnet and the holder of fig. 9.

Fig. 14 is an exploded view of fig. 13.

Fig. 15 is a schematic view of the end cap of fig. 6.

Fig. 16 is an enlarged schematic view of the area C in fig. 15.

Fig. 17 is an exploded view of the area of fig. 16.

Fig. 18 is a schematic view of the stopper shown in fig. 17.

Fig. 19 is an enlarged schematic view of the area D in fig. 5.

Fig. 20 is an enlarged schematic view of the area E in fig. 5.

The reference numerals are explained as follows: 1. a case; 10. an inner cavity; 11. an inner container; 12. a door frame; 121. a door seal; 122. a fixing frame; 1221. a receiving groove; 1222. a fixing plate; 1223. positioning holes; 131. a heat dissipation air duct; 132. a wind scooper; 14. a supporting top plate; 15. a support back plate; 16. a positioning piece; 17. an operation panel; 2. a door; 21. a door panel; 22. an inner layer plate; 23. a cover; 24. a bolt; 25. a mounting groove; 251. a limit rib; 252. a support rib; 253. a bayonet; 254. a notch region; 26. a limiting piece; 261. a fixed arm; 262. a clamping hook; 27. a top cover; 271. a clamping groove; 3. a hinge mechanism; 31. a mounting base; 311. a fixed ear; 32. a fixing member; 321. a first shaft member; 322. a clamping part; 4. a door lock mechanism; 51. a first magnet; 52. a second magnet; 521. and (5) mounting holes.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Currently, in some related household appliances, the household appliance generally includes a box body and a box door disposed on the front side of the box body, and the box door adopts a hinge or other auxiliary door opening devices to open or close the box door, but does not realize a complete automatic door opening function, so that the user experience is poor. Some household appliances adopt an automatic door opening structure to realize the door opening function, but the structure is complex and the cost is high.

Fig. 1 is a schematic view of a structure of a home appliance according to an embodiment of the present utility model. Fig. 2 is a schematic view of the structure of fig. 1 in another state. Fig. 3 is a schematic view of a part of the structure of the inside of the home appliance of fig. 1.

Referring to fig. 1 to 3, a household appliance according to an embodiment of the present utility model mainly includes a case 1, a door 2, a hinge mechanism 3, a door lock mechanism 4, and a door opening mechanism. The respective structures of the home appliances will be described below using an oven as an example.

Wherein, the box body 1 is constructed as a shell of the household appliance, and the box body 1 is in a rectangular hollow structure. In other embodiments, the case 1 may also have a housing structure with other shapes, and the specific shape of the case 1 may be adjusted according to the need, which is not limited herein.

An inner cavity 10 is formed in the case 1, and the inner cavity 10 can be used for high-temperature cooking treatment such as steaming and baking of food. It should be noted that in other embodiments, the inner cavity 10 may be used as a functional cavity. For example, when the household appliance is a dishwasher, the interior chamber 10 may be used to perform a cleaning process on dishes, e.g., bowls, plates, etc. When the household appliance is a disinfection cabinet, the inner cavity 10 can be used for disinfecting tableware such as bowls, dishes and the like.

In some embodiments, the case 1 is provided with a liner 11, and the inner cavity 10 is formed in the liner 11. The front end of the inner container 11 is provided with an opening, and the front end opening of the inner container 11 is communicated with the inner cavity 10.

The front side wall of the box body 1 is provided with an opening, and the front side opening of the box body 1 is arranged opposite to the front end opening of the inner cavity 10 of the liner 11. Therefore, the food material to be cooked can be put into the inner cavity 10 through the front opening of the case 1 for high temperature cooking treatment. Meanwhile, after cooking is finished, the food material can be taken out from the inner cavity 10 through the front opening of the case 1.

Referring to fig. 1 to 3, a door 2 is movably disposed on a front side wall of a case 1, and the door 2 can open and close a front opening of the case 1, thereby opening and closing an inner cavity 10.

In some embodiments, the first edge of the door 2 is rotatably coupled to the cabinet 1, i.e., the door 2 is rotatably coupled to the cabinet 1 by its first edge.

In some embodiments, the first edge of the door 2 is provided at its bottom end side, i.e., the bottom end side of the door 2 is rotatably connected to the bottom area of the front end of the cabinet 1.

Fig. 4 is a schematic view of a part of the structure in fig. 3.

Referring to fig. 1 to 5, in some embodiments, a door frame 12 is provided on a front side wall of a cabinet 1, and a cabinet door 2 is rotatably coupled to the front side of the door frame 12. The front opening of the case 1 is opened at the center of the door frame 12, i.e., the door frame 12 is circumferentially arranged at the periphery of the front opening of the case 1. The front opening of the inner chamber 10 in the inner container 11 is right against the center of the door frame 12, and the door frame 12 is arranged around the periphery of the front opening of the inner container 11. When the door 2 is closed, the peripheral edge of the door 2 is attached to the front side of the door frame 12, and the gap between the door 2 and the door frame 12 is sealed, so that the inner cavity 10 can be closed.

In some embodiments, the front side of the opening of the case 1 is provided with a door seal 121, and the door seal 121 is provided in a gap between the peripheral side of the liner 11 and the door frame 12. When the door 2 is closed, the door 2 can abut against the door seal 121, sealing the gap between the door frame 12 and the door 2, and further sealing the front opening of the case 1, that is, the front opening of the inner cavity 10.

Referring to fig. 3, in some embodiments, a heat dissipation air duct 131 is disposed in the case 1, and the heat dissipation air duct 131 is disposed outside the liner 11. Specifically, the heat dissipation air duct 131 may be disposed in a cavity formed between the inner container 11 and the case 1. The air inlet end of the heat dissipation air duct 131 is communicated with the cavity, and the air outlet end of the heat dissipation air duct 131 is communicated with the outside of the box body 1. Meanwhile, a heat dissipation fan (not shown in the figure) is arranged in the heat dissipation air duct 131, and is used for providing wind power, extracting air in the cavity, and discharging heat in the cavity to the outside of the box body 1 through the heat dissipation air duct 131 so as to realize the heat dissipation function in the box body 1.

In some embodiments, the heat dissipation air duct 131 is disposed above the top of the inner container 11, and the air outlet end of the heat dissipation air duct 131 faces the front side of the case 1 and is communicated with the front side space of the case 1. Therefore, the heat radiation duct 131 can radiate air and heat from the front side of the case 1.

In some embodiments, the heat dissipation fan is disposed at the air inlet end of the heat dissipation air channel 131. The heat dissipation fan adopts a cross flow fan so as to improve the wind power of the air inlet end of the heat dissipation air duct 131, improve the efficiency of extracting air in the cavity and further improve the heat dissipation efficiency in the cavity.

Referring to fig. 3, in some embodiments, a supporting top plate 14 is disposed in the case 1, and the supporting top plate 14 is disposed above the liner 11 at intervals. The top surface of the supporting top plate 14 is provided with a wind scooper 132, and a heat dissipation air duct 131 is formed by enclosing the wind scooper 132 and the supporting top plate 14. At this time, the rear end of the air guiding cover 132 is used as the air inlet end of the heat dissipation air duct 131, and the heat dissipation fan is disposed at the rear end of the air guiding cover 132. The front end of the air guide cover 132 faces the front side of the case 1 and serves as the air outlet end of the heat dissipation air duct 131.

In some embodiments, the box 1 is further provided with a supporting backboard 15, the supporting backboard 15 is arranged on the back side of the liner 11, the bottom of the supporting backboard 15 is supported on the bottom plate of the box 1, the top of the supporting backboard 15 is connected with the rear end of the supporting top plate 14, and the front end of the supporting top plate 14 is fixed on the front wall of the box 1, so that the supporting top plate 14 can be stably fixed on the upper side of the liner 11.

Fig. 5 is a schematic view of the structure of the door 2 and the door opening mechanism in fig. 4. Fig. 6 is an exploded view of fig. 5.

Referring to fig. 2 to 6, the hinge mechanism 3 is disposed between the door frame 12 of the door 2 and the case 1, the first edge of the door 2 is hinged to the front side of the door frame 12 through the hinge mechanism 3, and the door 2 can rotate with the axis of the hinge mechanism 3 as a shaft, so that the door 2 can open and close the front opening of the case 1, and further the inner cavity 10 is opened or closed.

In some embodiments, the hinge mechanism 3 is provided between the bottom region of the door frame 12 and the bottom region of the case 1. Therefore, when the door 2 is opened or closed, the bottom area of the door 2 can be kept connected to the door frame 12, and the top area of the door 2 can be moved toward or away from the front opening of the cabinet 1 along with the rotation of the door 2, thereby opening or closing the inner chamber 10.

Referring to fig. 4 to 6, in some embodiments, the hinge mechanisms 3 are provided with two sets, and the two sets of hinge mechanisms 3 are disposed on the left and right sides of the bottom region of the door 2. The axes of the two groups of hinge mechanisms 3 are coaxially arranged, and the door 2 can be rotated by the axes of the two groups of hinge mechanisms 3 to realize the opening or closing of the door 2.

Referring to fig. 4-6, in some embodiments, the door 2 includes a door panel 21 and an inner layer panel 22. The door panel 21 is located on the front side of the door 2, and the inner layer plates 22 are provided at intervals on the back side of the door panel 21. The hinge mechanism 3 is provided in a bottom region of the back surface of the door panel 21, and the hinge mechanism 3 is sandwiched and hidden between the door panel 21 and the inner panel 22. It should be noted that glass plates may be used for both the door panel 21 and the inner panel 22.

Fig. 7 is a schematic structural view of the hinge mechanism 3 in fig. 6. Fig. 8 is a schematic view of the structure of fig. 7 with the cover 23 removed.

Referring to fig. 4 to 8, in some embodiments, a cover 23 is disposed in the door 2, the cover 23 is fixed on the back side of the door panel 21, and the inner layer plate 22 covers the back side of the cover 23. The hinge mechanism 3 is mounted and fixed inside the cover 23, and the hinge mechanism 3 is hidden between the cover 23 and the door panel 21 by the cover 23, and the hinge mechanism 3 is sandwiched between the door panel 21 and the inner plate 22.

In some embodiments, the cover 23 is elongated, and the cover 23 extends along the height direction of the door 2. The cover 23 is provided with a receiving groove (not shown) extending in a long shape, and the extending direction of the receiving groove is identical to the extending direction of the cover 23. The accommodating groove is used for providing an installation space for the hinge mechanism 3, and the hinge mechanism 3 is arranged at the bottom end area of the accommodating groove.

Referring to fig. 8, in some embodiments, the hinge mechanism 3 includes a mount 31 and a fixture 32.

The mounting base 31 is fixed in a receiving groove in the cover 23, and the mounting base 31 is fixed to the back surface of the door panel 21 via the cover 23, and the mounting base 31 is fixed to the inside of the door 2. The fixing member 32 is for fixing to the front wall of the case 1, and the fixing member 32 is fixed to the bottom region of the side edge of the door frame 12.

In some embodiments, the bottom end of the fixing member 32 is provided with a first shaft member 321, the first shaft member 321 is used as a rotation shaft, the bottom end of the mounting seat 31 is connected with the first shaft member 321, and the bottom end of the mounting seat 31 is rotationally connected with the bottom end of the fixing member 32 through the first shaft member 321. Therefore, the mount 31 of the hinge mechanism 3 can be opened and closed with respect to the fixing member 32 by using the first shaft 321 as an axis, and the door 2 can be opened and closed with respect to the door frame 12 of the case 1 by using the first shaft 321 as a rotation axis, so that the door 2 can be opened or closed at the front opening of the case 1.

Referring to fig. 5 to 8, in some embodiments, two sides of the bottom of the mounting seat 31 are respectively provided with a fixing lug 311, the fixing lug 311 is provided with a fixing hole (not labeled in the drawing), and the bottom end surface of the cover 23 is provided with a screw hole (not shown in the drawing) opposite to the fixing hole. The fixing lug 311 can be fixedly connected to the bottom end surface of the cover 23 by screws penetrating through the fixing holes and the screw holes, and the mounting seat 31 can be fixed in the receiving groove of the cover 23 and in the bottom end region of the receiving groove.

Referring to fig. 3 to 8, in some embodiments, a positioning member 16 is provided at the door frame 12 at the front side of the case 1, and the positioning member 16 is provided at the back of the door frame 12, extends vertically, and is fixed at the side edge of the door frame 12. The end of the fixing member 32 near the case 1 is fastened and fixed to the positioning member 16, so that the fixing member 32 can be fixed to the front wall of the case 1.

In some embodiments, the positioning member 16 is provided with a positioning opening (not shown), and the end of the fixing member 32 near the case 1 is provided with a clamping portion 322. The clamping portion 322 can extend into the positioning opening and be clamped and fixed in the positioning opening, so that the end portion, close to the box body 1, of the fixing piece 32 is clamped and fixed on the positioning piece 16.

Referring to fig. 7 to 8, in some embodiments, the clamping portion 322 is located at the top end of the fixing member 32, and the clamping portion 322 and the first shaft 321 are respectively disposed at the upper and lower ends of the fixing member 32. The first shaft 321 is located at the end of the fixing member 32 remote from the case 1.

When the door 2 is in the closed state, the first shaft 321 is located at the front lower end region of the hinge mechanism 3, and the center of gravity of the door 2 and the hinge mechanism 3 is located at the side of the first shaft 321 near the cabinet 1.

When the door 2 is opened at a certain angle with the first shaft 321 as an axis, the center of gravity of the door 2 and the hinge mechanism 3 may be located at a side of the first shaft 321 away from the cabinet 1. At this time, the gravity of the door 2 can automatically open the mount 31 of the hinge mechanism 3 around the first shaft 321, and thus the door 2 can be automatically opened.

In some embodiments, a buffer member (not shown) is further disposed in the hinge mechanism 3, and after the door 2 is opened to a certain angle, the buffer member is compressed, and the buffer member is compressed to form a buffering force, so as to slow down the door opening speed of the door 2.

Fig. 9 is an enlarged schematic view of the area a in fig. 4. Fig. 10 is an enlarged schematic view of the area B in fig. 6. Fig. 11 is a side view of fig. 4. Fig. 12 is a schematic view of the structure of fig. 11 in another state.

Referring to fig. 2 to 12, the door lock mechanism 4 is disposed in the case 1 and above the top of the liner 11, i.e. the door lock mechanism 4 is disposed above the top outside the cavity 10. The top of the box door 2 is provided with a convex lock tongue 24, and the door lock mechanism 4 and the lock tongue 24 are oppositely arranged. The door lock mechanism 4 is used for being clamped with a lock tongue 24 at the top of the door 2 when the door 2 is closed so as to lock the door 2; or separated from the tongue 24 at the top of the door 2 to unlock the door 2, so that the door 2 can be opened.

Referring to fig. 2 to 12, the door opening mechanism is respectively disposed inside the case 1 and the door 2, and is used for enabling the door 2 to be automatically opened when the door 2 is in an unlocked state.

In some embodiments, the door opening mechanism includes a first magnet 51 disposed within the door 2 and a second magnet 52 disposed within the cabinet 1. The first magnet 51 is provided in the door 2. The second magnet 52 is disposed on the back side of the door frame 12, so that the second magnet 52 can be hidden inside the case 1. The first magnet 51 is arranged opposite and the second magnet 52 is an electromagnet, such as an electromagnet.

It should be noted that, in other embodiments, the second magnet 52 is disposed on the front side of the door frame 12, or the second magnet 52 may be disposed on other areas of the front portion of the case 1.

The second magnet 52 generates magnetism after being energized, and the magnetic pole of the side of the second magnet 52 facing the first magnet 51 is the same as the magnetic pole of the side of the first magnet 51 facing the second magnet 52. Therefore, when the door 2 is closed and the door 2 is in the unlocked state, the second magnet 52 and the first magnet 51 can form a repulsive force by energizing the second magnet 52, that is, the second magnet 52 and the first magnet 51 repel each other, so that the first magnet 51 drives the door 2 to rotate in a direction away from the second magnet 52, so that the door 2 can be automatically opened by a certain opening angle, and then the door 2 can be automatically opened by the gravity of the door 2, thereby realizing the automatic opening function of the door 2.

In addition, the second magnet 52 arranged in the box body 1 is an electromagnet, instead of the first magnet arranged in the box door 2 is an electromagnet, so that wiring is conducted in the box body 1, wires are prevented from being distributed in the box door 2, the structure in the household appliance is simplified, and the use safety of the household appliance is improved.

Referring to fig. 3 and 4, in some embodiments, a controller (not shown) is disposed in the case 1, and the door lock mechanism 4 is an electric driving mechanism, and the controller is respectively signal-connected with the door lock mechanism 4 and the second magnet 52. The door lock mechanism 4 can be controlled by a controller to lock or unlock the door 2. At the same time, the second magnet 52 can be controlled to be electrically conducted by the controller. Therefore, when the door 2 is closed, the controller can control the door lock mechanism 4 to unlock the door 2 and control the second magnet 52 to be electrified and conducted, so that the second magnet 52 and the first magnet 51 repel each other, and the door 2 is pushed to be automatically opened, thereby realizing the function of automatically opening the door.

Referring to fig. 3, in some embodiments, the controller is disposed above the top surface of the air guiding cover 132, and further uses the heat dissipation air duct 131 to dissipate heat of the controller, so as to avoid the excessive temperature at the controller.

Fig. 13 is a schematic view of the structure of the second magnet 52 and the fixing frame 122 in fig. 9. Fig. 14 is an exploded view of fig. 13.

Referring to fig. 4 to 14, in some embodiments, a fixing frame 122 is disposed on a back side of the door frame 12, and a receiving groove 1221 is concavely disposed on a side of the fixing frame 122 facing the door frame 12. The second magnet 52 is installed in the accommodating groove 1221, and is clamped and fixed between the fixing frame 122 and the back surface of the door frame 12.

In some embodiments, two sides of the front end of the fixing frame 122 are respectively provided with a fixing plate 1222, and the fixing plate 1222 is bent and extended outwards from the front end slot of the accommodating groove 1221. The fixing plate 1222 may be fixed to the back side of the door frame 12 by means of gluing or screw fixation, thereby fixing the second magnet 52 to the back side of the door frame 12.

In some embodiments, a mounting hole 521 is formed at the axis of the second magnet 52, a positioning hole 1223 disposed opposite to the mounting hole 521 is formed on the fixing frame 122, and the second magnet 52 can be locked and fastened in the accommodating groove 1221 by matching the positioning hole 1223 with the mounting hole 521.

Referring to fig. 10 to 12, in some embodiments, the first magnet 51 is disposed at a top region of the door 2, that is, the first magnet 51 is disposed at a second edge of the door 2 away from a first edge thereof, where a rotation axis of the door 2 is disposed, and the second edge is disposed opposite to the first edge in parallel. Meanwhile, the second magnet 52 is provided at the top region of the back side of the door frame 12, and the second magnet 52 is provided at the upper side of the door seal 121. Therefore, when the second magnet 52 is energized, the repulsive force of the second magnet 52 to the first magnet 51 can provide a large turning moment so that the door 2 can be smoothly opened.

Fig. 15 is a schematic view of the end cap of fig. 6. Fig. 16 is an enlarged schematic view of the area C in fig. 15. Fig. 17 is an exploded view of the area of fig. 16.

Referring to fig. 5 to 17, in some embodiments, a mounting groove 25 is provided in the door 2, and the mounting groove 25 is provided below the top wall of the door 2. The first magnet 51 is detachably provided in the mounting groove 25 and is disposed facing the second magnet 52. Therefore, when the first magnet 51 is installed in the installation groove 25, the first magnet 51 can be close to the top of the door 2 and away from the rotation axis of the door 2.

In some embodiments, the mounting groove 25 is disposed directly under the lock tongue 24, and the lock tongue 24 and the mounting groove 25 are disposed on upper and lower sides of the top wall of the door 2. Therefore, when the second magnet 52 is energized, the repulsive force of the second magnet 52 to the first magnet 51 can be transmitted to the latch tongue 24 nearby, so that the latch tongue 24 is smoothly separated from the door lock mechanism 4, and the door 2 can be smoothly opened.

In some embodiments, the back side of the mounting groove 25 is further provided with a limiting rib 251, and the limiting rib 251 is used to clamp and limit the first magnet 51 in the mounting groove 25. When the first magnet 51 is mounted in the mounting groove 25, the limit rib 251 is clamped on the back surface of the first magnet 51.

In some embodiments, the mounting groove 25 is internally convex with a support rib 252, the support rib 252 extending convexly from the front side groove wall of the mounting groove 25 opposite the rear side. The supporting ribs 252 and the limiting ribs 251 are arranged at intervals front and back. When the first magnet 51 is mounted in the mounting groove 25, the first magnet 51 is clamped between the supporting rib 252 and the limiting rib 251, so as to limit the first magnet 51 forwards and backwards.

In some embodiments, the support ribs 252 are provided in plurality, and the plurality of support ribs 252 are arranged in parallel and spaced apart relation. The plurality of support ribs 252 are simultaneously supported at different areas of the front side surface of the first magnet 51, thereby enabling the first magnet 51 to be stably fixed in the mounting groove 25 and the first magnet 51 to be disposed facing the second magnet 52 in the case 1.

Fig. 18 is a schematic view of the stopper 26 in fig. 17.

Referring to fig. 16 to 18, in some embodiments, an access opening (not shown) is provided at the bottom of the mounting groove 25, and the access opening is used for the first magnet 51 to enter and exit the mounting groove 25, i.e., the first magnet 51 may be installed into the mounting groove 25 through the access opening, and removed from the mounting groove 25 through the access opening.

The inlet and outlet are provided with limiting pieces 26, and the limiting pieces 26 are detachably clamped at the inlet and outlet. And when the limiting piece 26 is installed at the inlet and outlet, the limiting piece 26 can prop against the bottom of the first magnet 51, and then the first magnet 51 is locked and fixed in the installation groove 25.

The stopper 26 can vertically position the first magnet 51, and cooperates with the support rib 252 and the position-limiting rib 251 to position the first magnet 51 forward and backward, thereby stably fixing the first magnet 51 in the mounting groove 25. The first magnet 51 can be restrained laterally by the left and right side walls in the mounting groove 25, and the first magnet 51 can be further stably fixed in the mounting groove 25.

Referring to fig. 18, in some embodiments, the limiting member 26 is provided with two fixing arms 261 extending upward, and the two fixing arms 261 are disposed on the left and right sides of the limiting member 26. The opposite outer side walls of the two fixed arms 261 are respectively provided with a clamping hook 262 in a protruding mode. Meanwhile, bayonet 253 matched with the hooks 262 are respectively arranged on the left and right inner walls of the mounting groove 25. When the limiting piece 26 is arranged at the inlet and the outlet, the fixed arm 261 can extend into the mounting groove 25, the clamping hook 262 is clamped at the clamping opening 253, the limiting piece 26 can be kept against the bottom of the supporting rib 252, the limiting piece 26 is fixed at the inlet and the outlet, and the first magnet 51 is limited in the mounting groove 25.

It should be noted that, in other embodiments, one or more fixed arms 261 may be provided, and the number of fixed arms 261 may be adjusted according to need, which is not limited herein.

Referring to fig. 16 and 17, in some embodiments, a notch area 254 is formed on the rear side of the mounting groove 25, and the notch area 254 is located on the lower side of the stop rib 251. When the first magnet 51 is installed in the installation groove 25, the limiting rib 251 is clamped on a part of the back surface of the first magnet 51, and the other part of the first magnet 51 is exposed at the notch area 254. Meanwhile, the top edge of the inner layer plate 22 of the door 2 can cover the notch area 254, and the top of the inner layer plate 22 can be propped against the limit rib 251, and then is matched with the limit rib 251 to completely cover the mounting groove 25. By such design, the limit rib 251 and the inner layer plate 22 can be arranged on the same plane. When the door 2 is closed, the inner plate 22 and the limit rib 251 are both clamped between the first magnet 51 and the second magnet 52, so that the distance between the first magnet 51 and the second magnet 52 is reduced. Therefore, when the door is opened automatically, the repulsive force between the first magnet 51 and the second magnet 52 can be effectively increased, and thus a sufficient door opening force can be provided, so that the door 2 can be opened automatically smoothly.

Fig. 19 is an enlarged schematic view of the area D in fig. 5. Fig. 20 is an enlarged schematic view of the area E in fig. 5.

Referring to fig. 5 to 20, in some embodiments, the door 2 further includes a top cover 27, and the top cover 27 is disposed at a top edge of the door 2. The top cover 27 is elongated and extends in the lateral direction. The latch tongue 24 is protruded on the top surface of the top cover 27, and the installation groove 25 is formed at the bottom of the top cover 27. The door panel 21 is provided on the front side of the top cover 27, and the top edge of the door panel 21 is attached to the front side wall of the top surface. The inner panel 22 is provided on the back of the top cover 27 so that the door panel 21 and the inner panel 22 are disposed at a front-rear interval.

In some embodiments, the bottom surface of the back of the top cover 27 is concavely provided with a clamping groove 271 extending upwards, and the top edge of the inner plate 22 can be inserted into the clamping groove 271. And when the top edge of the inner plate 22 is inserted into the clamping groove 271, the top of the inner plate 22 can just cover the notch area 254.

Referring to fig. 1 to 3, in some embodiments, an operation panel 17 is provided on a front wall of the case 1. The controller is in signal connection with the operation panel 17, while the controller is in signal connection with the driving unit. A door opening signal for controlling the unlocking of the door 2 or a door closing signal for controlling the locking of the door 2 can be formed through the operation panel 17. For example, the operation panel 17 transmits a door opening signal to the controller, and the controller can control the door lock mechanism 4 to unlock the door 2 and control the second magnet 52 of the door lock mechanism to be energized, thereby automatically opening the door 2.

The operation panel 17 may be a touch panel or a key panel, and the door opening/closing signal of the corresponding control door 2 may be formed by touching the operation panel 17 or pressing the operation panel 17.

In other embodiments, the control signal can be collected through a voice module or a camera module, so as to control the door lock mechanism 4 and the door opening mechanism to work, and lock or unlock the door 2.

Based on the technical scheme, the embodiment of the utility model has the following positive effects:

in the household appliance provided by the embodiment of the utility model, the door opening mechanism is arranged on the front wall of the box body 1 and the box door 2 to provide the door opening force, the door opening mechanism comprises the first magnet 51 arranged on the box door 2 and the second magnet 52 arranged on the box body 1, the first magnet 51 is arranged at the second edge of the box door 2 and is matched with the second magnet 52 to be opposite to the first magnet 51, the second magnet 52 is electrified when the box door 2 is closed, the magnetism of the second magnet 52 is opposite to that of the first magnet 51, so that the second magnet 52 and the first magnet 51 can repel each other, and the first magnet 51 is matched with the second magnet 51 at the second edge of the box door 2, so that a larger rotating moment can be provided, and the box door 2 can be pushed to rotate easily and be opened automatically, thereby realizing the automatic door opening function of the box door 2. Further, when the second magnet 52 is not energized, the door opening mechanism does not provide the door opening force, and the door 2 can be kept in the closed state. The scheme has simple structure, is favorable for simplifying the structure of the door opening mechanism and reduces the production cost of household appliances.

While the utility model has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present utility model may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (14)

1. A household appliance, comprising:

a case forming a housing outside the home appliance; an inner cavity is formed in the box body, and an opening communicated with the inner cavity is formed in the front side of the box body;

the box door is arranged at the front side of the box body, and the first edge of the box door is rotationally connected with the box body and used for opening and closing the opening;

a door opening mechanism comprising:

the first magnet is arranged on the box door and at the second edge of the box door, and the second edge and the first edge are arranged in parallel and opposite;

the second magnet is arranged on the box body and is opposite to the first magnet; the second magnet is an electromagnet;

when the door is closed, and after the second magnet is electrified, the second magnet and the first magnet can repel each other so as to push the door to rotate and automatically open.

2. The household appliance according to claim 1, wherein the first edge of the door is located at the bottom end side thereof, and the top of the door is convexly provided with a locking tongue;

a door lock mechanism which is arranged opposite to the lock tongue is arranged in the box body;

when the door is closed, the door lock mechanism can be clamped with the lock tongue so as to lock the door; and the door lock mechanism can be separated from the lock tongue to unlock the door.

3. The household appliance of claim 2, further comprising a controller disposed inside the housing, the controller being in signal connection with the door lock mechanism and the second magnet, respectively;

when the door is closed, the controller can control the door lock mechanism to unlock the door and control the second magnet to be electrified, so that the second magnet and the first magnet repel each other to push the door to be automatically opened.

4. The household appliance of claim 2, wherein a mounting groove is formed in the door, and the mounting groove is formed below the top wall of the door;

the first magnet is installed in the installation groove and is arranged facing the second magnet.

5. The home appliance of claim 4, wherein the installation groove is directly under the locking tongue, and the locking tongue and the installation groove are respectively provided at upper and lower sides of the top wall of the door.

6. The household appliance of claim 4, wherein a back side of the mounting groove is provided with a limit rib;

when the first magnet is arranged in the mounting groove, the limiting rib is clamped on the back side of the first magnet.

7. The household appliance according to claim 6, wherein the mounting groove is internally provided with a supporting rib in a protruding manner, and the supporting rib and the limiting rib are arranged at intervals in the front-back direction;

the first magnet is clamped between the supporting rib and the limiting rib.

8. The household appliance of claim 7, wherein an inlet and an outlet are formed in the bottom of the installation groove, a limiting piece is arranged at the inlet and the outlet, and the limiting piece is detachably clamped at the inlet and the outlet and abuts against the bottom of the first magnet to lock and fix the first magnet in the installation groove.

9. The household appliance according to claim 8, wherein the limiting piece is provided with a fixing arm extending upwards in a protruding manner, and the fixing arm is provided with a clamping hook in a protruding manner; the inner wall of the mounting groove is provided with a bayonet matched with the clamping hook;

the fixing arm can extend into the mounting groove to enable the clamping hook to be clamped at the bayonet, and the limiting piece abuts against the supporting rib so as to fix the limiting piece at the inlet and the outlet.

10. The household appliance according to claim 6, wherein a notch area is arranged on the back side of the mounting groove, and the notch area is arranged on the lower side of the limiting rib;

when the first magnet is arranged in the mounting groove, at least part of the back surface of the first magnet is exposed out of the notch area;

an inner layer plate is arranged on one side of the box door facing the box body, the top of the inner layer plate covers the notch area, and the top wall of the inner layer plate abuts against the limit rib;

when the door is closed, the inner layer plate and the limiting ribs are clamped between the first magnet and the second magnet.

11. The household appliance according to claim 1, wherein a door frame is provided at a front portion of the case, and the opening is provided at a center of the door frame; the second magnet is arranged on the back side of the door frame.

12. The household appliance according to claim 11, wherein a fixing frame is arranged on the back side of the door frame, and a containing groove is concavely arranged on one side of the fixing frame facing the door frame;

the second magnet is arranged in the accommodating groove and clamped and fixed between the fixing frame and the back surface of the door frame.

13. The household appliance of claim 12, wherein two sides of the front end of the fixing frame are respectively provided with a fixing plate; the fixed plate is bent outwards from the front end slot opening of the accommodating slot and extends, and the fixed plate is fixed on the back side of the door frame.

14. The household appliance according to claim 12, wherein a mounting hole is formed in the axis of the second magnet, a positioning hole is formed in the fixing frame and is opposite to the mounting hole, and the second magnet is fixed in the accommodating groove through the positioning hole and the mounting hole.