CN107334442B

CN107334442B - Dish-washing machine

Info

Publication number: CN107334442B
Application number: CN201710648610.6A
Authority: CN
Inventors: 许绍炮; 李坚; 仇灿华; 张新科
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2017-08-01
Filing date: 2017-08-01
Publication date: 2023-05-09
Anticipated expiration: 2037-08-01
Also published as: CN107334442A

Abstract

The invention relates to the field of household appliances and discloses a dish washer, which comprises a machine body (1) and a door body (2), wherein the door body (2) can move between an open position and a closed position relative to the machine body (1), the dish washer is provided with a door lock assembly and a load switch assembly which are arranged independently of each other, the load switch assembly comprises a switch body (3) and a switch ejector rod (4) which are respectively and correspondingly arranged on the machine body (1) and the door body (2), and the switch ejector rod (4) can control the on-off state of the switch body (3) along with the opening and closing of the door body (2). The switch ejector rod (4) can have smaller extension length, is convenient for improving the aesthetic property of the dish washer, is not easy to deform and break due to collision, and has higher reliability.

Description

Dish-washing machine

Technical Field

The invention relates to the field of household appliances, in particular to a dish washer.

Background

With the improvement of the living standard of people, dish washers have come into more and more families for automatically cleaning tableware devices such as bowls, chopsticks, plates, dishes and the like. Generally, a dishwasher includes a body having a cavity and a dishwasher door pivotally connected to the body by a hinge to enable opening and closing actions of the dishwasher door.

When the door body of the dishwasher is opened, it is generally required that other loads except the display panel are powered off to secure use safety. A load switch assembly for such a power-off operation is generally integrated in a door lock assembly in the conventional art to turn on a load power source when the door body is closed and to turn off when the door body is opened. The bolt has a large extension length, so that the attractive appearance is influenced, a user is easily touched, and the bolt can deform and break under the action of small collision force, so that the whole machine is invalid.

Disclosure of Invention

The object of the present invention is to overcome the problems of aesthetics and reliability of the prior art by providing a dishwasher which facilitates shortening the extension of the door lock assembly and the load switch assembly relative to the extension of the door body or machine body, thereby improving aesthetics and reliability.

In order to achieve the above object, an aspect of the present invention provides a dishwasher including a body and a door body movable between an open position and a closed position with respect to the body, the dishwasher having a door lock assembly and a load switch assembly independently provided to each other, the load switch assembly including a switch body and a switch jack respectively provided to the body and the door body, the switch jack being capable of controlling an on-off state of the switch body according to opening and closing of the door body.

Preferably, the door body is pivotally connected to the machine body, and the load switch assembly is disposed at a side edge portion opposite to a pivot axis of the door body.

Preferably, the switch plunger comprises an elastic extension which can be bent and restored under the action of its own elasticity without breaking.

Preferably, the elastic extension is made of a rubber material.

Preferably, the switch body includes a micro switch, a lever, and a driving rod, one end of the lever has a tendency to abut against a switch button of the micro switch under a spring bias, and the driving rod abuts against the other end of the lever and is driven by the switch jack in a state that the door body is at a closed position so that the lever moves away from the switch button of the micro switch.

Preferably, the switch body has a lower housing and a top cover and forms a cavity, the micro switch, the lever and the driving rod are accommodated in the cavity, and the lever is pivotally connected between the lower housing and the top cover.

Preferably, a buckle is formed on the lower housing, and a clamping groove matched with the buckle is formed on the edge part of the top cover.

Preferably, a stop portion is formed on the lower housing and located in the cavity, and a stop protrusion is formed on the driving rod for cooperating with the stop portion to define a limit movement position of the driving rod.

Preferably, the switch body is mounted to an edge portion of the body and formed with an engagement hole for insertion of the switch jack, and the driving lever extends to an outer end of the engagement hole.

Preferably, the micro switch is electrically connected to the main control board and configured to disconnect power supply to the washing pump, the drain pump, and the heating device when the door body is in an opened state.

According to the technical scheme, the load switch assembly and the door lock assembly are independently arranged, the switch ejector rod triggers the on-off switching of the switch body, and the switch ejector rod does not need to be locked with the door body, so that the extension length is small, the attractiveness of the dish washer is improved, deformation and fracture are not easy to occur due to collision, and the dish washer has high reliability.

Drawings

Fig. 1 is a schematic perspective view of a dishwasher according to a preferred embodiment of the present invention, in which a door body is in a closed state;

FIG. 2 is a schematic view of the structure of the dishwasher of FIG. 1 in an opened state of a door;

FIG. 3 is an enlarged view of a load switch assembly of the dishwasher of FIG. 1;

fig. 4 is a schematic view of the load switch assembly of fig. 3 with the top cover removed.

Description of the reference numerals

1-a machine body; 2-door body; 3-a switch body; 31-a micro switch; 32-lever; 33-a drive rod; 331-stop protrusions; 34-a spring; 35-a lower housing; 351-snap; 352-stop; 36-top cover; 361-a clamping groove; 4-switching the ejector rod; 41-elastic extension.

Detailed Description

In the present invention, unless otherwise specified, terms such as "upper, lower, left, and right" and "upper, lower, left, and right" are used generally referring to the upper, lower, left, and right directions shown in the drawings to which reference is made; "inner and outer" means inner and outer relative to the contour of the individual components or assemblies themselves.

Referring to fig. 1 to 4, a dishwasher according to a preferred embodiment of the present invention includes a body 1 and a door 2, the door 2 being pivotally connected to the body 1 to be movable between an open position and a closed position. In the dishwasher, a door lock assembly (not shown) and a load switch assembly are also included, which are provided independently of each other. The load switch assembly includes a switch body 3 mounted on the body 1 and a switch jack 4 mounted on the door body 2, the switch jack 4 being disposed opposite to the switch body 3 to be able to disconnect the electrical connection of the switch body 3 when the door body 2 is opened and to connect the electrical connection of the switch body 3 when closed, thereby being able to disconnect the power supply such as a washing pump or the like as the door body 2 is opened.

It can be understood that the switch body 3 and the switch push rod 4 can also exchange mounting positions, and the purpose of controlling the on-off state of the switch body 3 can be achieved. By the arrangement, the switch ejector rod 4 is only used for driving the switch body 3 to be switched on or off, and does not need to bear the locking of the door body 2, so that the extension length can be smaller. As shown in fig. 2, the extension length of the switch jack 4 relative to the extension of the door body 2 is significantly reduced, and the door body 2 has relatively good aesthetic properties in an open state. In addition, when a user takes and places tableware such as bowls and chopsticks to be washed, the switch ejector rod 4 is not easy to touch, and the switch ejector rod 4 is not deformed or broken even if the user collides with the tableware, so that the tableware has high reliability.

Typically, in the case where the door body 2 is pivotally connected to the body 1, a load switch assembly may be provided at a side edge portion opposite to the pivot axis of the door body 2 to disconnect the electrical connection of the switch body 3 immediately after the door body 2 is opened, with high safety.

In the illustrated preferred embodiment, the switch jack 4 may be integrally formed with the door body 2, or may be connected to the door body 2 by adhesion, snap-fit, or the like. The switch push rod 4 has an elastic extension section 41 for abutting against the switch body 3. The elastic extension 41 is provided so as to be capable of being bent without breaking when, for example, a collision occurs, and to be capable of being restored to its original state by its own elasticity. Therefore, in the long-distance transportation process, the whole machine failure caused by the damage of the switch top cover 4 can be effectively prevented, and the use reliability is ensured. For this purpose, the elastic extension 41 of the switching jack 4 should have a high stiffness on the basis of a suitable elasticity. Preferably, the elastic extension 41 (and thus the entire switch ram 4) may be made of a rubber material having a relatively high hardness.

Referring to fig. 3 and 4, in a dishwasher according to a preferred embodiment of the present invention, the switch body 3 is driven using a lever principle. Specifically, the switch body 3 includes a micro switch 31, a lever 32, and a drive lever 33. The micro switch 31 may be electrically connected to the main control board to disconnect power supply such as a washing pump, a drain pump, a heating device, and the like when the door body 2 is in an open state. The microswitch 31 has a switch knob which, when depressed, turns off the power supply to the load. One end of the lever 32 has a tendency to abut against the switch button of the micro switch 31 under the biasing action of the spring 34, and the driving rod 31 abuts against the other end of the lever 23, whereby when the door body 2 is opened, the spring 34 drives the lever 31 to press down the switch button of the micro switch 31, and power supply to the load is disconnected through the main control board; when the door body 2 is closed, the switch push rod 4 releases the switch button against the elastic force of the spring 34 through the driving rod 33 and the lever 32, and the load power is restored. In the preferred embodiment, since the driving lever 33 is provided, driving can be performed by the switch jack 4 in the extending direction of the driving lever 33, and the driving lever 33 is in planar contact with the side of the lever 32, thereby maintaining a large area of action during operation, ensuring reliable driving. And, by providing the driving lever 33, the extension length of the switch jack 4 is relatively small to ensure the aesthetic property and the use reliability of the door body 2 in the opened state.

To facilitate the integrated installation of the functional components of the switch body 3, the switch body 3 may be provided with a lower housing 35 and a push rod 36, and form a cavity accommodating the micro switch 31, the lever 32 and the driving rod 33. The lever 32 is pivotally connected between the lower housing 35 and the top cover 36, whereby its pivot axis serves as a fulcrum for on-off operation, and has the advantages of stable installation and reliable operation. Wherein, the lower casing 35 may be formed with a buckle 351, and the edge of the top cover 36 is correspondingly formed with a slot 361, so that the top cover 36 can be conveniently clamped to the lower casing 35, thereby facilitating assembly and maintenance.

Further, a stop portion 352 is formed on the lower housing 35 and located in the cavity, and a stop protrusion 331 is correspondingly formed on the driving rod 33 to be matched with the stop portion 352. Thus, when the door 2 is opened, the driving lever 33 has the limit movement position defined by the stopper 352, and is prevented from being detached from the container. In addition, the stop 352 may provide a guiding function for axial movement of the drive rod 33, alone or in combination with other mounting locations of the drive rod 33, ensuring reliable operation.

In the illustrated preferred embodiment, the switch body 3 is mounted to the edge portion of the body 1, and the engagement portion of the lower case 35 and the top cover 36 thereof is formed with an engagement hole for the insertion of the switch jack 4, and the driving lever 33 is extended to the outer end of the engagement hole in the opened state of the door body 2, whereby the switch jack 4 can have a significantly reduced extension length, and the lever 32 and the micro switch 31 are driven to operate by the driving lever 33.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims

1. Dishwasher comprising a machine body (1) and a door body (2), the door body (2) being movable relative to the machine body (1) between an open position and a closed position, characterized in that the dishwasher has a door lock assembly and a load switch assembly arranged independently of each other, the load switch assembly comprising a switch body (3) and a switch ram (4) arranged on the machine body (1) and the door body (2), respectively, the switch ram (4) being capable of controlling the on-off state of the switch body (3) with opening and closing of the door body (2), the switch body (3) having a lower housing (35) and a top cover (36) and comprising a microswitch (31) accommodated in a cavity formed by the lower housing (35) and the top cover (36), a lever (32) and a drive lever (33), one end of the lever (32) having a tendency to abut against the microswitch (31) under the bias of a spring (34), and the lever (32) being pivotally connected to the lower housing (35) and the top cover (36) such that the lever (32) is driven to move away from the door body (32) in the closed position, the lower housing (35) is provided with a stop part (352) positioned in the accommodating cavity, the driving rod (33) is provided with a stop protrusion (331) which is used for being matched with the stop part (352) to limit the limit movement position of the driving rod (33), wherein the micro switch (31) is electrically connected with the main control board and is used for disconnecting the power supply of the washing pump, the drainage pump and the heating device when the door body (2) is in an open state.

2. A dishwasher according to claim 1, characterized in that the door body (2) is pivotally connected to the machine body (1), the load switch assembly being arranged at a side edge portion opposite to the pivot axis of the door body (2).

3. Dishwasher according to claim 1, characterized in that the switch lever (4) comprises an elastic extension (41), which elastic extension (41) can be bent and return to its original shape under its own elasticity without breaking.

4. A dishwasher according to claim 3, characterized in that the elastic extension (41) is made of a rubber material.

5. Dishwasher according to claim 1, characterized in that the lower housing (35) is formed with a catch (351) and the edge of the top cover (36) is formed with a catch groove (361) cooperating with the catch (351).

6. A dishwasher according to claim 1, characterized in that the switch body (3) is mounted to an edge portion of the machine body (1) and is formed with an engagement hole for the insertion of the switch jack (4), and the driving lever (33) extends to an outer end of the engagement hole.