Dishwasher with electromagnetic suction upper cover and upper cover opening and closing control method

Abstract

The present invention discloses a dishwasher with an electromagnetic suction type upper cover and an upper cover opening and closing control method, comprising a dishwasher body, an upper cover fixed on one side of the dishwasher body and rotatable to open and close the dishwasher, a permanent magnet is arranged on the upper cover, an electromagnet is arranged at a position corresponding to the permanent magnet on the dishwasher body, and an elastic mechanism connected to the upper cover and controlling the static angle of the upper cover is also arranged in the dishwasher, the elastic mechanism comprises an elastic part, an elastic adjustment part for adjusting the elastic force of the elastic part, a hinge structure connecting the upper cover and the dishwasher body, a connecting part connecting the hinge structure and the elastic part, and a rotating part supporting the connecting part. The present invention adopts an electromagnet as a locking mechanism, which has a simple structure, is easy to operate, and has a low failure rate.

Description

Technical Field

[0001] The invention belongs to the field of dishwashers, and in particular relates to a dishwasher with an electromagnetic suction type upper cover and a method for controlling the opening and closing of the upper cover. Background Art

[0002] At present, most of the doors of undercounter dishwashers on the market generally use buckles as locking mechanisms. When closing the door, the side door is closed by the buckle, but the buckle mechanism has a complex structure and a high failure rate, and is not easy to use frequently.

[0003] The Chinese patent application number CN201120484676.4 discloses a side door suction device for a dishwasher, comprising a side door body and a side plate connected to the outer peripheral surface of the side door body, the side plates on the left and right sides of the side door body are connected to the water retaining plate through the door lining, the bottom of the water retaining plate on both sides is provided with a door shaft for connecting with the dishwasher body, and the surface of the side plate at the upper end of the side door body is provided with a magnet for sucking the side door body and the dishwasher body. However, due to the fixed position of the magnet, the structure makes the fitting attraction between the side door body and the dishwasher body constant. If the position is close, the magnetic force is large, which affects the opening of the side door body and requires a large force to open it. If the position is far away, the magnetic force is small, which affects the closing of the side door body, which is inconvenient for users to use.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dishwasher with an electromagnetic suction type upper cover and an upper cover opening and closing control method, which adopts an electromagnet as a locking mechanism, has a simple structure, is easy to operate and has a low failure rate.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a dishwasher with an electromagnetic suction type upper cover, including a dishwasher body, an upper cover with one side fixed on the dishwasher body and rotatable to open and close the dishwasher, a permanent magnet is provided on the upper cover, an electromagnet is provided at a position corresponding to the permanent magnet on the dishwasher body, and an elastic mechanism connected to the upper cover and controlling the static angle of the upper cover is also provided in the dishwasher.

[0007] The elastic mechanism includes an elastic part, an elastic adjustment part for adjusting the elastic force of the elastic part, a hinge structure connecting the upper cover and the dishwasher body, a connecting part connecting the hinge structure and the elastic part, and a rotating part supporting the connecting part. By adjusting the elastic mechanism, the elastic tension and the gravity of the upper cover will be balanced at a position between 0°<α<90°, and the upper cover will be stationary at the angle α.

[0008] The elastic part is a spring with hooks at both ends at the bottom of the dishwasher. The hook at one end of the spring is connected to the elastic adjustment part to adjust the elastic force of the spring, and the hook at the other end of the spring is connected to the connecting part to transmit the tension of the spring to the upper cover to control the opening and closing of the upper cover.

[0009] The elastic adjustment part is an elastic adjustment plate with at least two notched teeth connected to the elastic part. The elastic part is connected to different notched teeth, and the stretching degree of the elastic part is different, so the elastic force of the elastic part can be changed.

[0010] The hinge structure comprises a hinge shaft and a hinge connector connected to the hinge shaft.

[0011] The hinge shaft is a three-fold structure, the first fold part is connected to the connection part through a hinge connector, the second fold part is horizontally arranged and passes through the side wall of the dishwasher body, and the third fold part is fixedly connected to the upper cover in a direction parallel to the side of the upper cover. When the connection part generates a pulling force on the hinge structure, the part of the hinge shaft passing through the side wall of the dishwasher body rotates, the part of the hinge shaft fixed to the upper cover tilts up, and the upper cover opens.

[0012] The connecting part is a rope, and the rotating part is a fixed pulley fixed at the corner of the rope. The fixed pulley can change the direction of the rope without changing the tensile force transmitted by the rope, guide the tensile force from the elastic part to the upper cover, and control the opening and closing of the upper cover.

[0013] The permanent magnet is located between the upper and lower interlayers of the upper cover and is fixed by bonding or mechanical fixing, which prevents the permanent magnet from moving and colliding with the upper cover when the upper cover is opened or closed, thereby extending the service life of the permanent magnet.

[0014] The electromagnet is located in a groove on the dishwasher body and is fixed by bonding or mechanically, which prevents the electromagnet from moving and colliding with the dishwasher body, thereby extending the service life of the electromagnet.

[0015] A method for controlling the opening and closing of the upper cover of a dishwasher with an electromagnetic suction type upper cover is provided. When the electromagnet is powered on, the permanent magnet and the electromagnet are attracted together, and the upper cover is closed; when the electromagnet is powered off, the magnetic attraction between the permanent magnet and the electromagnet disappears, and the pulling force of the elastic mechanism causes the upper cover to open.

[0016] The elastic mechanism is adjusted so that the tension of the elastic mechanism and the gravity of the upper cover are kept balanced at a position between 0°<α<90°. When the electromagnet is powered on, the magnetic attraction between the permanent magnet and the electromagnet keeps the upper cover in a closed state. When the electromagnet is powered off, the magnetic attraction between the permanent magnet and the electromagnet disappears, and the tensile force of the elastic mechanism returns the upper cover to the position with an angle of α, and the door opens.

[0017] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0018] 1. The dishwasher is also provided with an elastic mechanism connected to the upper cover and controlling the static angle of the upper cover. By adjusting the elastic mechanism, the elastic tension and the gravity of the upper cover will be balanced at a position between 0°<α<90°, and the upper cover will be static at the angle α;

[0019] 2. The hook at one end of the spring is connected to the elastic adjustment part, which can adjust the elastic force of the spring. The hook at the other end of the spring is connected to the connecting part, which transmits the tension of the spring to the upper cover to control the opening and closing of the upper cover;

[0020] 3. The elastic adjustment part is an elastic adjustment plate with at least two notched teeth connected to the elastic part. The elastic part is connected to different notched teeth, and the stretching degree of the elastic part is different, which can change the elastic force of the elastic part;

[0021] 4. The hinge shaft is a three-fold structure, the first fold part is connected to the connection part through a hinge connector, the second fold part is horizontally arranged and passes through the side wall of the dishwasher body, and the third fold part is fixedly connected to the upper cover in a direction parallel to the side of the upper cover. When the connection part generates a pulling force on the hinge structure, the part of the hinge shaft that passes through the side wall of the dishwasher body rotates, and the part of the hinge shaft fixed to the upper cover tilts up, and the upper cover opens;

[0022] 5. The fixed pulley can change the direction of the rope without changing the tensile force transmitted by the rope, guide the tensile force from the elastic part to the upper cover, and control the opening and closing of the upper cover;

[0023] 6. The permanent magnet is located between the upper and lower layers of the upper cover and is fixed by bonding or mechanical fixing, which avoids collision between the permanent magnet and the upper cover when the upper cover is opened and closed, thereby extending the service life of the permanent magnet;

[0024] 7. The electromagnet is located in a groove on the dishwasher body and is fixed by bonding or mechanically, which avoids collision between the electromagnet and the dishwasher body and prolongs the service life of the electromagnet.

[0025] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of a dishwasher with an electromagnetic suction type upper cover according to the present invention;

[0028] Figure 2 It is a schematic diagram of the elastic mechanism of the present invention;

[0029] In the figure: 1. dishwasher body; 2. upper cover; 3. permanent magnet; 4. electromagnet; 5. elastic mechanism; 6. elastic part; 7. elastic adjustment part; 8. connecting part; 9. rotating part; 10. hinge structure; 11. hinge shaft; 12. hinge connector.

[0030] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figure 1 to Figure 2 As shown, the present invention is a dishwasher with an electromagnetic suction type upper cover, comprising a dishwasher body 1, an upper cover 2 fixed on the dishwasher body 1 at one side and rotatable to open and close the dishwasher, a permanent magnet 3 is provided on the upper cover 2, an electromagnet 4 is provided at a position corresponding to the permanent magnet 3 on the dishwasher body 1, and an elastic mechanism 5 connected to the upper cover 2 and controlling the static angle of the upper cover 2 is also provided in the dishwasher. By adjusting the elastic mechanism 5, the elastic tension and the gravity of the upper cover 2 will be balanced at a position between 0°<α<90°, and the upper cover 2 will be static at the angle α.

[0035] The elastic mechanism 5 includes an elastic part 6, an elastic adjustment part 7 for adjusting the elastic force of the elastic part 6, a hinge structure 10 connecting the upper cover 2 and the dishwasher body 1, a connecting part 8 connecting the hinge structure 10 and the elastic part 6, and a rotating part 9 supporting the connecting part 8.

[0036] A method for controlling the opening and closing of an upper cover of a dishwasher with an electromagnetic suction type upper cover is provided. When the electromagnet 4 is powered on, the permanent magnet 3 and the electromagnet 4 are attracted together, and the upper cover 2 is closed. When the electromagnet 4 is powered off, the magnetic attraction between the permanent magnet 3 and the electromagnet 4 disappears, and the pulling force of the elastic mechanism 5 causes the upper cover 2 to open.

[0037] Embodiment 1

[0038] like Figure 2 As shown, the elastic part 6 described in this embodiment is a spring with hooks at both ends located at the bottom of the dishwasher. The hook at one end of the spring is connected to the elastic adjustment part 7 to adjust the elastic force of the spring. The hook at the other end of the spring is connected to the connecting part 8 to transmit the tension of the spring to the upper cover 2 to control the opening and closing of the upper cover 2.

[0039] Embodiment 2

[0040] like Figure 2 As shown, the elastic adjustment part 7 described in this embodiment is an elastic adjustment plate with at least two notches connected to the elastic part 6. The elastic part 6 is connected to different notches, and the stretching degree of the elastic part 6 is different. The elastic force of the elastic part 6 can be changed, thereby adjusting the angle α when the upper cover 2 is stationary.

[0041] Embodiment 3

[0042] like Figure 2 As shown, the hinge structure 10 described in this embodiment includes a hinge shaft 11 and a hinge connector 12 connected to the hinge shaft. The hinge shaft 11 is a three-fold structure. The first folding part is connected to the connecting part 8 through the hinge connector 12, the second folding part is horizontally arranged and passes through the side wall of the dishwasher body 1, and the third folding part is fixedly connected to the upper cover 2 in a direction parallel to the side of the upper cover 2. When the connecting part 8 generates a pulling force on the hinge structure 10, the part of the hinge shaft 11 passing through the side wall of the dishwasher body 1 rotates, and the part of the hinge shaft 11 fixed to the upper cover 2 is tilted upward, and the upper cover 2 is opened.

[0043] Embodiment 5

[0044] like Figure 2 As shown, the connecting part 8 described in this embodiment is a rope, and the rotating part 9 is a fixed pulley fixed at the corner of the rope. The fixed pulley can change the direction of the rope without changing the tensile force transmitted by the rope, guide the tensile force from the elastic part 6 to the upper cover 2, and control the opening and closing of the upper cover 2.

[0045] Embodiment 6

[0046] The permanent magnet 3 described in this embodiment is located between the upper and lower layers of the upper cover 2, and is adhesively fixed or mechanically fixed, which avoids the permanent magnet from colliding with the upper cover 2 when the upper cover 2 is opened and closed, thereby extending the service life of the permanent magnet; the electromagnet 4 is located in a groove on the dishwasher body 1, and is adhesively fixed or mechanically fixed, which avoids the electromagnet from colliding with the dishwasher body when the upper cover 2 is opened and closed, thereby extending the service life of the electromagnet.

[0047] Embodiment 7

[0048] The present embodiment describes a method for controlling the opening and closing of the upper cover of a dishwasher with an electromagnetic suction type upper cover, which adjusts the elastic mechanism 5 so that the tension of the elastic mechanism 5 and the gravity of the upper cover 2 are balanced at a position between 0°<α<90°: the spring hook is connected to the notch on the elastic adjustment plate away from the spring, the elastic force of the spring is increased, the transmission of the tension through the rope and the fixed pulley increases the rotation angle of the hinge shaft 11, and the gravity of the upper cover and the tension of the spring on the upper cover are balanced at a larger angle, that is, α is increased; the elastic mechanism 5 is adjusted so that the spring hook is connected to the notch on the elastic adjustment plate close to the spring, the elastic force of the spring is reduced, the transmission of the tension through the rope and the fixed pulley reduces the rotation angle of the hinge shaft 11, and the gravity of the upper cover and the tension of the spring on the upper cover are balanced at a smaller angle, that is, α is reduced.

[0049] When the electromagnet 4 is powered on, the magnetic attraction between the permanent magnet 3 and the electromagnet 4 and the gravity work together to overcome the pulling force of the elastic mechanism 5 on the upper cover, so that the upper cover 2 is in a closed state; when the electromagnet 4 is powered off, the magnetic attraction between the permanent magnet 3 and the electromagnet 4 disappears, and the upper cover is in a closed state. The pulling force of the elastic mechanism 5 on the upper cover is greater than the gravity of the upper cover, and the tensile force of the elastic mechanism 5 causes the upper cover 2 to return to the position of the angle α, and the door is opened.

[0050] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A dishwasher with an electromagnetic suction type upper cover, comprising a dishwasher body (1), an upper cover (2) fixed on one side of the dishwasher body (1) and rotatable to open and close the dishwasher, Features: A permanent magnet (3) is provided on the upper cover (2), an electromagnet (4) is provided on the dishwasher body (1) at a position corresponding to the permanent magnet (3), and an elastic mechanism (5) connected to the upper cover (2) and controlling the static angle of the upper cover (2) is also provided in the dishwasher; The elastic mechanism (5) comprises an elastic part (6), an elastic adjustment part (7) for adjusting the elastic force of the elastic part (6), a hinge structure (10) connecting the upper cover (2) and the dishwasher body (1), a connecting part (8) connecting the hinge structure (10) and the elastic part (6), and a rotating part (9) supporting the connecting part (8); The hinge structure (10) comprises a hinge shaft (11) and a hinge connector (12) connected to the hinge shaft; The elastic adjustment portion (7) is an elastic adjustment plate with at least two notched teeth connected to the elastic portion (6); the elastic portion (6) is connected to different notched teeth, and the stretching degree of the elastic portion (6) is different, thereby changing the elastic force of the elastic portion (6) to adjust the angle of the upper cover (2) when it is stationary; When the electromagnet (4) is powered on, the permanent magnet (3) and the electromagnet (4) are attracted together, and the upper cover (2) is closed; when the electromagnet (4) is powered off, the magnetic attraction between the permanent magnet (3) and the electromagnet (4) disappears, and the pulling force of the elastic mechanism (5) causes the upper cover (2) to open.

2. A dishwasher with an electromagnetic suction upper cover as claimed in claim 1, Features: The elastic part (6) is a spring with hooks at both ends located at the bottom of the dishwasher.

3. A dishwasher with an electromagnetic suction upper cover as claimed in claim 1, Features: The hinge shaft (11) is a three-fold structure, the first folding part is connected to the connecting part (8) through a hinge connector (12), the second folding part penetrates the side wall of the dishwasher body (1), and the third folding part is fixedly connected to the upper cover (2).

4. A dishwasher with an electromagnetic suction upper cover as claimed in claim 1, Features: The connecting part (8) is a rope, and the rotating part (9) is a fixed pulley fixed at a corner of the rope.

5. A dishwasher with an electromagnetic suction upper cover as claimed in claim 1, Features: The permanent magnet (3) is located between the upper and lower layers of the upper cover (2) and is fixed by bonding or mechanically.

6. A dishwasher with an electromagnetic suction upper cover as claimed in claim 1, Features: The electromagnet (4) is located in a groove on the dishwasher body (1) and is fixed by bonding or mechanically.

7. A method for controlling the opening and closing of the upper cover of a dishwasher with an electromagnetic suction type upper cover as claimed in any one of claims 1 to 6, wherein when the electromagnet (4) is powered on, the permanent magnet (3) and the electromagnet (4) are attracted together, and the upper cover (2) is closed; when the electromagnet (4) is powered off, the magnetic attraction between the permanent magnet (3) and the electromagnet (4) disappears, and the pulling force of the elastic mechanism (5) causes the upper cover (2) to open.

Images