Door opener and dishwasher

Abstract

The present invention discloses a door opening device and a dishwasher. The dishwasher comprises a door opening device, which comprises: a housing having an opening; a door body rotatably arranged at the opening of the housing so that the door body can be opened and closed relative to the housing; a locking mechanism arranged between the housing and the door body, the locking mechanism having a locked state and an unlocked state, and when the door body is closed, the locking mechanism can be switched from the unlocked state to the locked state to restrict the door body from rotating relative to the housing; an electric unlocking mechanism, which can switch the locking mechanism from the locked state to the unlocked state; and a door opening mechanism arranged between the housing and the door body, and when the locking mechanism is switched to the unlocked state, the door opening mechanism can drive the door body to open. After washing is finished, the locking mechanism is switched to the unlocked state by the electric unlocking mechanism, and the door body is driven to open by the door opening mechanism, and the residual heat of the tableware and the circulating air are used to accelerate the drying process of the tableware, without the need for high-power electrical devices to participate in the drying process of the tableware.

Description

Technical Field

[0001] The invention relates to the field of tableware washing, and in particular to a door opening device and a dishwasher. Background Art

[0002] In the prior art, dishwashers generally need to heat the water required for washing dishes through a heating device to enhance the washing effect, and the dishwasher needs to dry the dishes after washing. The dishwashers on the market mainly dry the dishes in the following ways: 1. The water required for the final rinsing process is further heated by a heating device, thereby increasing the temperature of the dishes after washing to accelerate the evaporation of moisture on the dishes. However, the cavity of the dishwasher is a relatively closed space, and the air circulation is limited, which makes the drying time of the dishes longer, resulting in the easy breeding of bacteria and the generation of odors on the dishes. In addition, the heating device, as a high-power electrical device, participates in the drying process of the dishes, which makes the energy consumption required for drying the dishes high, which is inconsistent with the current concept of energy conservation and environmental protection; 2. By arranging a hot air blower outside the cavity of the dishwasher, hot air is blown into the cavity by the hot air blower to accelerate the evaporation of moisture on the dishes. However, the hot air blower, as a high-power electrical device, participates in the drying process of the dishes, which makes the energy consumption required for drying the dishes high, which is inconsistent with the current concept of energy conservation and environmental protection. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a door opening device that can automatically open the door after washing, using the residual heat of the dishes after washing and the circulating air to accelerate the drying process of the dishes, thereby preventing the dishes from breeding bacteria or producing odors, and without requiring high-power electrical devices to participate in the drying process of the dishes, thereby reducing the energy consumption required for drying the dishes.

[0004] The present invention also provides a dishwasher having the door opening device.

[0005] According to the first aspect of the present invention, a door opening device is used for a dishwasher and includes: a shell having an opening; a door body rotatably arranged at the opening of the shell so that the door body can be opened and closed relative to the shell; a locking mechanism, which is arranged between the shell and the door body, and has a locked state and an unlocked state, and when the door body is closed, the locking mechanism can be switched from the unlocked state to the locked state to limit the rotation of the door body relative to the shell; an electric unlocking mechanism, which can switch the locking mechanism from the locked state to the unlocked state; and a door opening mechanism, which is arranged between the shell and the door body, and when the locking mechanism is switched from the locked state to the unlocked state, the door opening mechanism can drive the door body to open.

[0006] The door opening device according to the embodiment of the present invention has at least the following beneficial effects: in the above structure, after washing is completed, the locking mechanism can be switched from a locked state to an unlocked state by the electric unlocking mechanism, and the door body can be driven to open by the door opening mechanism, so that the residual heat of the dishes after washing and the circulating air can be used to accelerate the drying process of the dishes, thereby preventing the dishes from breeding bacteria or producing odors, and no high-power electrical devices are required to participate in the drying process of the dishes, which can reduce the energy consumption required for drying the dishes, and is in line with the concept of energy saving and environmental protection.

[0007] According to some embodiments of the present invention, the locking mechanism includes: a sliding member, which is slidably disposed on the door body, a limiting structure for limiting the sliding member from being separated from the door body is disposed between the sliding member and the door body, and a first buckle is disposed on the sliding member, and a second buckle that can cooperate and engage with the first buckle is disposed on the shell; a first compression spring, which is disposed between the sliding member and the door body, the first compression spring can provide an elastic force acting on the sliding member to drive the sliding member to slide to a position where the first buckle is cooperated and engaged with the second buckle, and when the sliding member is subjected to external force, it can overcome the elastic force of the first compression spring and slide to separate the first buckle from the second buckle.

[0008] When closing the door body, the first fastener and the second fastener are engaged with each other to limit the rotation of the door body relative to the shell to prevent the door body from being accidentally opened during washing. After washing, when the sliding member is subjected to external force, it can overcome the elastic force of the first compression spring and slide to separate the first fastener from the second fastener, thereby switching the locking mechanism from a locked state to an unlocked state to release the lock on the door body, so that the door body can be opened under the drive of the door opening mechanism.

[0009] According to some embodiments of the present invention, a accommodating cavity is provided in the door body, and a first avoidance through hole that can connect the outside of the door body and the accommodating cavity is provided on the door body corresponding to the sliding member, the sliding member can be slidably inserted into the first avoidance through hole, and a pressing portion is provided at one end of the sliding member located outside the accommodating cavity, one end of the first compression spring abuts against the door body, and the other end abuts against the pressing portion, the limiting structure includes a first limiting portion provided at the other end of the sliding member, the first buckling member is provided on the first limiting portion, and a second avoidance through hole that can connect the outside of the door body and the accommodating cavity is provided on the door body corresponding to the first buckling member, the second buckling member can be inserted into the second avoidance through hole and engage with the first buckling member, and after washing is finished, when the sliding member is pressed by external force or driven by the electric unlocking mechanism, the sliding member can slide to a position where the first buckling member is separated from the second buckling member to release the lock on the door body, and its structure is simple and easy to implement.

[0010] According to some embodiments of the present invention, the first limiting portion is detachably disposed on the sliding member to facilitate installation and disassembly, thereby facilitating maintenance.

[0011] According to some embodiments of the present invention, the electric unlocking mechanism includes: a push block, which is slidably disposed on the first limiting portion, a first protrusion is disposed on the push block, a second protrusion is disposed on the door body corresponding to the first protrusion, the second protrusion is located on the moving path of the first protrusion, and a first pushing slope is disposed on the first protrusion corresponding to the second protrusion; a second compression spring, an abutment is disposed on the first limiting portion, one end of the second compression spring abuts against the push block, and the other end abuts against the abutment; a driving member, which is disposed in the accommodating cavity, and has a retractable output end, and the output end of the driving member can abut against the push block and overcome the elastic force of the second compression spring to push the push block to slide.

[0012] After washing is finished, the push block is driven to slide by the driving member so that the first protrusion moves toward the second protrusion. During the movement, the second protrusion can be pressed against the first pushing slope to drive the push block to move the first limiting part, and drive the first buckling part to move through the first limiting part, so that the first buckling part is separated from the second buckling part. When the output end of the driving member contracts, the push block is reset under the elastic force of the second compression spring. Its structure is simple and easy to implement.

[0013] According to some embodiments of the present invention, a guide structure is provided between the push block and the first limiting portion to limit the moving trajectory of the push block, which is beneficial to improving the stability of the electric unlocking mechanism during operation.

[0014] According to some embodiments of the present invention, the electric unlocking mechanism includes a driving member arranged in the accommodating cavity, the driving member has a retractable output end, a third protrusion is arranged on the first limiting portion, the third protrusion is located on the moving path of the output end of the driving member, and a second pushing slope is arranged on the third protrusion corresponding to the output end of the driving member. After washing is completed, the output end of the driving member presses against the second pushing slope to drive the first limiting portion to drive the first fastening member to move, so that the first fastening member is separated from the second fastening member. The structure is simple and easy to implement.

[0015] According to some embodiments of the present invention, the driving member is a wax motor. When the wax motor is powered on, the output end of the wax motor extends, and when the wax motor is powered off, the output end of the wax motor retracts. The transmission relationship is simple and the transmission is stable.

[0016] According to some embodiments of the present invention, the door opening mechanism includes a torsion spring, which has a torsion spring body and two torsion arms. A rotating shaft capable of rotating the door body relative to the shell is provided between the shell and the door body. The torsion spring body is sleeved on the rotating shaft, one of the torsion arms of the torsion spring is connected to the shell, and the other torsion arm is connected to the door body. When closing the door, the door body rotates to overcome the elastic force of the torsion spring and stores energy for the torsion spring. When the locking mechanism switches from a locked state to an unlocked state, the door body opens under the action of the elastic force of the torsion spring.

[0017] A dishwasher according to an embodiment of a second aspect of the present invention comprises a door opening device according to an embodiment of the first aspect of the present invention.

[0018] The dishwasher according to the embodiment of the present invention has at least the following beneficial effects: in the above structure, after washing is completed, the locking mechanism can be switched from a locked state to an unlocked state by the electric unlocking mechanism, and the door body can be driven to open by the door opening mechanism, so that the residual heat of the dishes after washing and the circulating air are used to accelerate the drying process of the dishes, which can prevent the dishes from breeding bacteria or producing odors, and no high-power electrical devices are required to participate in the drying process of the dishes, which can reduce the energy consumption required for drying the dishes, and is in line with the concept of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a partial cross-sectional schematic diagram of an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A partial enlarged schematic diagram in the middle;

[0022] Figure 3 It is a schematic diagram of a partial structure of an embodiment of the present invention;

[0023] Figure 4 yes Figure 3 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 5 yes Figure 3 A partial enlarged schematic diagram of point C in the middle;

[0025] Figure 6 is an exploded schematic diagram of an electric unlocking mechanism according to an embodiment of the present invention;

[0026] Figure 7 It is a schematic structural diagram of a push block according to an embodiment of the present invention;

[0027] Figure 8 is a partial cross-sectional schematic diagram of a door body according to an embodiment of the present invention;

[0028] Fig. 9 is a partial structural schematic diagram of another embodiment of the present invention;

[0029] Fig.10 yes Fig. 9 A partial enlarged schematic diagram of point D in the middle.

[0030] Reference numerals:

[0031] Shell 100, second fastening member 110, door body 200, accommodating chamber 210, first avoidance through hole 220, second avoidance through hole 230, second protrusion 240, guide slope 241, limiting groove 250, convex edge 260, sliding member 300, pressing portion 310, first limiting portion 320, first fastening member 321, abutting portion 322, first limiting protrusion 3221, third protrusion 323, second Pushing inclined surface 3231, sliding groove 324, avoidance gap 3241, strip through hole 325, first compression spring 400, pushing block 500, first protrusion 510, first pushing inclined surface 511, second limiting protrusion 520, first plug-in part 530, overlapping part 531, second plug-in part 540, second limiting part 541, second compression spring 600, driving member 700, torsion spring 800, rotating shaft 900. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it is necessary to understand that if it involves orientation description, the orientation or position relationship indicated by, for example, up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, if the words such as several, greater than, less than, exceed, above, below, within, etc. appear, among which, several means one or more, more means more than two, greater than, less than, exceed, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself.

[0035] In the description of the present invention, if the words "first", "second", etc. appear, they are only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figure 1 , a door opening device according to an embodiment of the present invention is used for a dishwasher, and includes a housing 100, a door body 200, a locking mechanism, an electric unlocking mechanism and a door opening mechanism.

[0038] The shell 100 has an opening, and the door body 200 is rotatably arranged at the opening of the shell 100 so that the door body 200 can be opened and closed relative to the shell 100. The locking mechanism is arranged between the shell 100 and the door body 200. The locking mechanism has a locked state and an unlocked state. When the door body 200 is closed, the locking mechanism can be switched from the unlocked state to the locked state to limit the rotation of the door body 200 relative to the shell 100. The electric unlocking mechanism can switch the locking mechanism from the locked state to the unlocked state. The door opening mechanism is arranged between the shell 100 and the door body 200. When the locking mechanism is switched from the locked state to the unlocked state, the door opening mechanism can drive the door body 200 to open.

[0039] In the above structure, after washing is finished, the locking mechanism can be switched from a locked state to an unlocked state through the electric unlocking mechanism, and the door body 200 can be driven to open through the door opening mechanism, and the residual heat after washing the dishes and the circulating air can be used to accelerate the drying process of the dishes, which can prevent the dishes from breeding bacteria or producing odors, and no high-power electrical devices are required to participate in the drying process of the dishes, which can reduce the energy consumption required for drying the dishes, and is in line with the concept of energy saving and environmental protection. Specifically, a controller electrically connected to the electric unlocking mechanism is provided on the housing 100, and the electric unlocking mechanism is controlled by the controller to perform an unlocking action after washing is finished.

[0040] Reference Figure 2 and Figure 6 In some embodiments, the locking mechanism includes a sliding member 300 and a first compression spring 400 .

[0041] The sliding member 300 is slidably arranged on the door body 200, and a limiting structure for limiting the sliding member 300 from being separated from the door body 200 is arranged between the sliding member 300 and the door body 200, and a first buckle 321 is arranged on the sliding member 300, and a second buckle 110 that can cooperate and engage with the first buckle 321 is arranged on the shell 100, and a first compression spring 400 is arranged between the sliding member 300 and the door body 200. The first compression spring 400 can provide an elastic force acting on the sliding member 300 to drive the sliding member 300 to slide to a position where the first buckle 321 and the second buckle 110 are cooperated and engaged. When the sliding member 300 is subjected to external force, it can overcome the elastic force of the first compression spring 400 and slide to separate the first buckle 321 from the second buckle 110.

[0042] When closing the door body, the first fastener 321 and the second fastener 110 are engaged with each other to limit the rotation of the door body 200 relative to the shell 100 to prevent the door body 200 from being accidentally opened during the washing process. After washing, when the sliding member 300 is subjected to external force, it can overcome the elastic force of the first compression spring 400 and slide to separate the first fastener 321 from the second fastener 110, thereby releasing the lock on the door body 200, and the door body 200 is opened under the drive of the door opening mechanism.

[0043] Reference Figure 2 , Figure 6 and Figure 8In some embodiments, the door body 200 has a accommodating cavity 210, and the door body 200 is provided with a first avoidance through hole 220 corresponding to the sliding member 300, which can connect the outside of the door body 200 and the accommodating cavity 210. The sliding member 300 can be slidably arranged in the first avoidance through hole 220, and the end of the sliding member 300 located outside the accommodating cavity 210 is provided with a pressing portion 310. One end of the first compression spring 400 abuts against the door body 200, and the other end abuts against the pressing portion 310. The limiting structure includes a first limiting portion 320 arranged at the other end of the sliding member 300, and a first buckling member 321 is arranged on the first limiting portion 320, and a second avoidance through hole 230 corresponding to the first fastening member 321 is arranged on the door body 200, which can connect the outside of the door body 200 and the accommodating cavity 210. The second fastening member 110 can be inserted into the second avoidance through hole 230 and engaged with the first fastening member 321. After washing, when the sliding member 300 is pressed by an external force or driven by an electric unlocking mechanism, the sliding member 300 can slide to a position where the first fastening member 321 is separated from the second fastening member 110 to release the lock on the door body 200. Its structure is simple and easy to implement.

[0044] Reference Figure 6 In some embodiments, the first limiter 320 is detachably disposed on the sliding member 300, which is convenient for installation and removal, and for maintenance. Specifically, the first limiter 320 is connected to the sliding member 300 by screws. Of course, the first limiter can also be connected to the sliding member by a clamping structure, which is not limited here.

[0045] Reference Figure 4 as well as Figures 6 to 8 In some embodiments, the electric unlocking mechanism includes a push block 500 , a second compression spring 600 and a driving member 700 .

[0046] The push block 500 is slidably arranged on the first limiting portion 320, and a first protrusion 510 is arranged on the push block 500. A second protrusion 240 is arranged on the door body 200 corresponding to the first protrusion 510. The second protrusion 240 is located on the moving path of the first protrusion 510, and a first pushing inclined surface 511 is arranged on the first protrusion 510 corresponding to the second protrusion 240. An abutting portion 322 is arranged on the first limiting portion 320, one end of the second compression spring 600 abuts against the push block 500, and the other end abuts against the abutting portion 322. The driving member 700 is arranged in the accommodating cavity 210, and the driving member 700 has a retractable output end. The output end of the driving member 700 can abut against the push block 500 and overcome the elastic force of the second compression spring 600 to push the push block 500 to slide.

[0047] After washing is finished, the push block 500 is driven to slide by the driving member 700 so that the first protrusion 510 moves toward the second protrusion 240. During the movement, the second protrusion 240 can press against the first pushing inclined surface 511 to drive the push block 500 to move the first limiter 320, and drive the first fastening member 321 to move through the first limiter 320, so that the first fastening member 321 is separated from the second fastening member 110. When the output end of the driving member 700 contracts, the push block 500 is reset under the elastic force of the second compression spring 600. The structure is simple and easy to implement. Among them, a guiding inclined surface 241 with a guiding function is provided on the second protrusion 240 corresponding to the first pushing inclined surface 511, which is conducive to improving the stability of the electric unlocking mechanism when it is working.

[0048] Reference Figure 6 In some of the embodiments, a first limiting protrusion 3221 is provided on the abutting portion 322 corresponding to the second compression spring 600, and one end of the second compression spring 600 close to the abutting portion 322 is sleeved on the first limiting protrusion 3221, and a second limiting protrusion 520 is provided on one end of the push block 500 close to the second compression spring 600, and one end of the second compression spring 600 close to the push block 500 is sleeved on the second limiting protrusion 520, which can prevent the second compression spring 600 from moving during operation, which is beneficial to improving the stability of the electric unlocking mechanism during operation.

[0049] In some of the embodiments, a guide structure is provided between the push block 500 and the first limiting portion 320 to limit the moving trajectory of the push block 500, which is beneficial to improving the stability of the electric unlocking mechanism during operation.

[0050] Reference Figure 6 It should be noted that, in some embodiments, the guide structure includes a slide groove 324 and a first plug-in portion 530, the slide groove 324 is arranged on the first limiting portion 320, the first plug-in portion 530 is arranged on the push block 500, the first plug-in portion 530 is inserted in the slide groove 324 and can slide relative to the slide groove 324, specifically, the slide groove 324 is arranged at the top of the first limiting portion 320, the first plug-in portion 530 is arranged at the top of the push block 500, and two slide grooves 324 and first plug-in portions 530 are provided, wherein at least one of the top of the first plug-in portions 530 is provided with an overlapping portion 531 for overlapping the top of the first limiting portion 320 to prevent the push block 500 from separating from the first limiting portion 320, and accordingly, the side of the slide groove 324 is provided with an avoidance notch 3241 for avoiding the first plug-in portion 530, so as to facilitate the assembly of the push block 500 and the first limiting portion 320.

[0051] Reference Figure 6It should be noted that, in some embodiments, a second plug-in portion 540 is provided on the side of the push block 500, and a bar-shaped through hole 325 is provided on the side of the first limiting portion 320 corresponding to the second plug-in portion 540, and the second plug-in portion 540 can be slidably inserted into the bar-shaped through hole 325, and a second limiting portion 541 is provided on the second plug-in portion 540 to prevent the push block 500 from escaping from the first limiting portion 320 by avoiding the notch 3241 during the sliding process, which is beneficial to improving the stability of the electric unlocking mechanism during operation.

[0052] It should be noted that in some of the embodiments, as another implementation of the guide structure, a supporting portion may be provided on the first limiting portion corresponding to the push block, the first plug-in portion is provided at the top of the supporting portion, and the slide groove is provided at the bottom of the push block, which is not limited here.

[0053] Reference Fig. 9 and Fig.10 In some embodiments, the electric unlocking mechanism includes a driving member 700 arranged in the accommodating cavity 210, the driving member 700 has a retractable output end, and a third protrusion 323 is arranged on the first limiting portion 320, the third protrusion 323 is located on the moving path of the output end of the driving member 700, and a second pushing inclined surface 3231 is arranged on the third protrusion 323 corresponding to the output end of the driving member 700. After washing is completed, the output end of the driving member 700 presses against the second pushing inclined surface 3231 to drive the first limiting portion 320 to drive the first fastening member 321 to move, so that the first fastening member 321 is separated from the second fastening member 110. Its structure is simple and easy to implement.

[0054] In some of the embodiments, the driving member 700 is a wax motor. When the wax motor is powered on, the output end of the wax motor extends out, and when the wax motor is powered off, the output end of the wax motor retracts. The transmission relationship is simple and the transmission is stable.

[0055] It should be noted that, in some of the embodiments, the driving member may also be a driving motor, and the output end of the driving motor is transmission-connected with a rack and pinion mechanism. Of course, the driving member may also be a cylinder assembly with a retractable piston rod, or an electromagnetic valve with a retractable piston rod, which is not limited here.

[0056] It should be noted that, in some of the embodiments, the locking mechanism can also be a magnetic structure arranged between the shell and the door body, the magnetic structure includes a first magnetic component arranged on the shell and a second magnetic component arranged on the door body, one of the first magnetic component and the second magnetic component is configured as a magnet, and the other is configured as a metal component that can be adsorbed by the magnet. Of course, the first magnetic component and the second magnetic component can also be configured as magnets. Correspondingly, the electric unlocking mechanism is a wax motor or an electric push rod arranged between the shell and the door body. The wax motor or the electric push rod can overcome the magnetic force between the first magnetic component and the second magnetic component to push the door body to rotate relative to the shell, so that the first magnetic component and the second magnetic component are separated, so that the door body can be opened under the drive of the door opening mechanism, which is not limited here.

[0057] Reference Figure 3 and Figure 5 In some embodiments, the door opening mechanism includes a torsion spring 800, which has a torsion spring body and two torsion arms. A rotating shaft 900 is provided between the shell 100 and the door body 200, which enables the door body 200 to rotate relative to the shell 100. The torsion spring body is sleeved on the rotating shaft 900, one of the torsion arms of the torsion spring 800 is connected to the shell 100, and the other torsion arm is connected to the door body 200. When closing the door, the door body 200 overcomes the elastic force of the torsion spring 800 and rotates to store energy for the torsion spring 800. When the locking mechanism switches from a locked state to an unlocked state, the door body 200 opens under the action of the elastic force of the torsion spring 800.

[0058] Reference Figure 5 In some of the embodiments, a limiting groove 250 is provided on the door body 200, which is used to clamp the torsion spring 800 connected to the torsion arm of the door body 200 to prevent the torsion spring 800 from moving during operation, which is beneficial to improving the stability of the door opening mechanism during operation, wherein the limiting groove is surrounded by a convex edge 260 provided on the door body 200, and its structure is simple and easy to implement.

[0059] It should be noted that in some of the embodiments, the door opening mechanism can also be an electric push rod or a hydraulic cylinder assembly arranged between the door body and the shell. When the locking mechanism switches from a locked state to an unlocked state, the piston rod of the electric push rod or the hydraulic cylinder assembly can push the door body to rotate relative to the shell to open the door body. This is not limited here.

[0060] A dishwasher according to an embodiment of the present invention comprises the door opening device mentioned above.

[0061] In the above structure, after washing is completed, the locking mechanism can be switched from a locked state to an unlocked state through the electric unlocking mechanism, and the door body 200 can be driven to open through the door opening mechanism. The residual heat after washing the dishes and the circulating air can be used to accelerate the drying process of the dishes, which can prevent the dishes from breeding bacteria or producing odors. There is no need for high-power electrical components to participate in the drying process of the dishes, which can reduce the energy consumption required for drying the dishes, and is in line with the concept of energy saving and environmental protection.

[0062] In the description of this specification, if the description involves reference terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" and "some examples", it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A door opening device for a dishwasher, characterized in that: include: A housing (100), wherein the housing (100) has an opening; a door body (200), the door body (200) being rotatably arranged at the opening of the shell (100) so that the door body (200) can be opened and closed relative to the shell (100); a locking mechanism, the locking mechanism being arranged between the housing (100) and the door body (200), the locking mechanism having a locked state and an unlocked state, and when the door body (200) is closed, the locking mechanism can be switched from the unlocked state to the locked state, so as to restrict the door body (200) from rotating relative to the housing (100); An electric unlocking mechanism, which can switch the locking mechanism from a locked state to an unlocked state; a door opening mechanism, the door opening mechanism being arranged between the housing (100) and the door body (200), and when the locking mechanism switches from a locked state to an unlocked state, the door opening mechanism can drive the door body (200) to open; The locking mechanism comprises a sliding member (300), the sliding member (300) being slidably arranged on the door body (200), and a limiting structure for limiting the sliding member (300) from being separated from the door body (200) is arranged between the sliding member (300) and the door body (200); The door body (200) has a receiving cavity (210) therein, one end of the sliding member (300) located outside the receiving cavity (210) is provided with a pressing portion (310), and the limiting structure comprises a first limiting portion (320) provided at the other end of the sliding member (300); The first limiting portion (320) is detachably arranged on the sliding member (300); The electric unlocking mechanism comprises a push block (500), a second compression spring (600) and a driving member (700); the push block (500) is slidably arranged on the first limiting portion (320); the push block (500) is provided with a first protrusion (510); a second protrusion (240) is provided on the door body (200) corresponding to the first protrusion (510); the second protrusion (240) is located on a moving path of the first protrusion (510); and a protrusion on the first protrusion (510) corresponding to the second protrusion (240) is provided. A first pushing inclined surface (511) is provided, and an abutting portion (322) is provided on the first limiting portion (320); one end of the second compression spring (600) abuts against the pushing block (500), and the other end abuts against the abutting portion (322); the driving member (700) is provided in the accommodating cavity (210), and the driving member (700) has a retractable output end, and the output end of the driving member (700) can abut against the pushing block (500) and overcome the elastic force of the second compression spring (600) to push the pushing block (500) to slide.

2. The door opening device according to claim 1, characterized in that: The sliding member (300) is provided with a first fastening member (321), and the shell (100) is provided with a second fastening member (110) capable of engaging with the first fastening member (321). The locking mechanism also includes a first compression spring (400), and the first compression spring (400) is provided between the sliding member (300) and the door body (200). The first compression spring (400) can provide an elastic force acting on the sliding member (300) to drive the sliding member (300) to slide to a position where the first fastening member (321) and the second fastening member (110) are engaged and engaged. When the sliding member (300) is subjected to an external force, it can overcome the elastic force of the first compression spring (400) and slide to separate the first fastening member (321) from the second fastening member (110).

3. The door opening device according to claim 2, characterized in that: A first avoidance through hole (220) capable of connecting the outside of the door body (200) and the accommodating chamber (210) is provided on the door body (200) corresponding to the sliding member (300); the sliding member (300) can be slidably inserted into the first avoidance through hole (220); one end of the first compression spring (400) abuts against the door body (200) and the other end abuts against the pressing portion (310); the first buckling member (321) is provided on the first limiting portion (320); a second avoidance through hole (230) capable of connecting the outside of the door body (200) and the accommodating chamber (210) is provided on the door body (200) corresponding to the first buckling member (321); the second buckling member (110) can be inserted into the second avoidance through hole (230) and engage with the first buckling member (321).

4. The door opening device according to claim 1, characterized in that: A guiding structure is provided between the pushing block (500) and the first limiting portion (320).

5. The door opening device according to claim 1, characterized in that: The driving member (700) is a wax motor.

6. The door opening device according to claim 1, characterized in that: The door opening mechanism comprises a torsion spring (800), wherein the torsion spring (800) has a torsion spring body and two torsion arms, a rotating shaft (900) is arranged between the shell (100) and the door body (200) and is capable of rotating the door body (200) relative to the shell (100), the torsion spring body is sleeved on the rotating shaft (900), one of the torsion arms of the torsion spring (800) is connected to the shell (100), and the other torsion arm is connected to the door body (200).

7. A dishwasher, characterized in that: Comprising a door opening device as described in any one of claims 1 to 6.

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