CN113712481A

CN113712481A - Dish washing machine

Info

Publication number: CN113712481A
Application number: CN202010565005.4A
Authority: CN
Inventors: 闫洪辉
Original assignee: Foshan Best Electrical Appliance Technology Co Ltd
Current assignee: Foshan Best Electrical Appliance Technology Co Ltd
Priority date: 2020-05-25
Filing date: 2020-06-19
Publication date: 2021-11-30
Also published as: CN212939637U; CN212939627U; CN212755566U; CN212939623U; CN213097747U

Abstract

The application belongs to the technical field of dish washing machines, and provides a dish washing machine which comprises an inner container, wherein a water storage container is arranged on the inner container, a top cover and a water adding disc are arranged at the top of the water storage container, a water inlet is formed in the top cover, and a flow guide opening communicated with the water inlet is formed in the water adding disc; the water adding tray is provided with a flow guide cover, the flow guide cover is provided with a water level sensing mechanism for detecting the water storage capacity of the water storage container, the water level sensing mechanism comprises a floater and a guide pipe connected to the bottom of the flow guide cover, and the guide pipe penetrates through the water inlet and is inserted into the water storage container; the floater is provided with an induction part, is arranged in the guide pipe and can move up and down in the guide pipe along with the change of the water level; the diversion cover is provided with an induction trigger device. This application is improved water level response mechanism on the dish washer that has built-in water tank, can enough improve the sensitivity that triggers between the response subassembly, can let water level response mechanism set up alone again, and easy to assemble or change is favorable to reducing built-in water tank's manufacturing cost.

Description

Dish washing machine

Technical Field

The application belongs to the technical field of dish washing machines, and particularly relates to a dish washing machine.

Background

With the increasing development of science and technology and the improvement of living standard, especially with the rapid development of household appliance technology, a special dish washing device is provided for the aspect of tableware cleaning. A multifunctional dish washing machine generally has the functions of spraying, drying, sterilizing and the like, a user only needs to put tableware such as bowls and chopsticks into the dish washing machine, the dish washing machine can automatically complete a series of cleaning works according to the setting of the user, the use is convenient and full-automatic, the operation of the user is effectively reduced, and therefore the dish washing machine is more and more popularized in thousands of households and is deeply loved by the majority of users.

Most of the dish-washing machines sold in the market at present are provided with two water supply modes of supplying water by tap water or storing water by a water tank. The water tank stores water and supplies water or controls the water inlet of tap water by using a water valve, and the water tank is used for cleaning tableware in the washing cavity, so that a water supply mode is selected according to the requirements of use conditions. In order to match the above-mentioned water supply method, a dishwasher of the related art is generally provided with a built-in water tank inside the dishwasher. The common built-in water tank structure is characterized in that a water tank is designed into an independent component, and the water tank and the inner container of the dish-washing machine are connected and fixed on the inner container through a corresponding connecting structure.

In practical application, a water level sensing device for detecting the water level in the water tank is generally arranged for timely reminding a user of adding water into the built-in water tank. The water level sensing device of the built-in water tank applied in the dish-washing machine in the prior art mainly has two types, one type is that the water tank is internally provided with a sensing component which is mutually matched with the inner container, if a floater is provided with a sensing part, the inner container is provided with a sensing triggering part, and the two types are mutually matched and trigger a reminding signal. The structure can avoid the problem that the sensing triggering part is arranged in the water tank to easily cause the wading risk, but the sensing matching position needs to be corrected between the sensing triggering part and the water tank, the structure is complex, and the triggering sensitivity is low. The other type is that all set up the response subassembly on the water tank, can be favorable to setting for the response cooperation position between the response subassembly, need install corresponding waterproof construction additional and solve the problem of wading. However, if the sensing assembly fails, the entire water tank needs to be replaced, which results in higher manufacturing and maintenance costs of the water tank and is not favorable for marketable application.

Therefore, the water level sensing mechanism arranged on the dishwasher with the built-in water tank needs to be perfected, which is a research problem of the current dishwasher manufacturers.

Disclosure of Invention

An object of the embodiment of the application is to provide a dish washer, make the improvement to the water level response mechanism on the dish washer that has built-in water tank, can enough improve the sensitivity that triggers between the response subassembly, can let water level response mechanism set up alone again, and easy to assemble or change is favorable to reducing the manufacturing cost of built-in water tank.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the dishwasher comprises an inner container, wherein a water storage container is arranged on the inner container, a top cover and a water adding disc are arranged at the top of the water storage container, a water inlet is formed in the top cover, and a flow guide port communicated with the water inlet is formed in the water adding disc; the water adding tray is provided with a flow guide cover, the flow guide cover is provided with a water level sensing mechanism for detecting the water storage capacity of the water storage container, the water level sensing mechanism comprises a floater and a guide pipe connected to the bottom of the flow guide cover, and the guide pipe penetrates through the water inlet and is inserted into the water storage container; the floater is arranged in the guide pipe and can move up and down in the guide pipe along with the change of the water level; the diversion cover is provided with an induction trigger device which is used for inducing the position change of the floater and generating a trigger signal when an induction piece on the floater approaches.

The application provides a dishwasher's beneficial effect lies in: compared with the prior art, the inner container of the dish washing machine is provided with a water storage capacity for storing water, the water adding tray and the top cover of the built-in water storage container are provided with the diversion cover, and the water adding tray is communicated with the top cover so that the diversion cover can be arranged at the top of the water storage container. The water level sensing mechanism is arranged on the flow guide cover and comprises a floater and a guide pipe, the guide pipe can be inserted into the water storage container, and the floater is accommodated in the guide pipe and moves up and down in the guide pipe along with the change of the water level. The diversion cover is also provided with an induction trigger device which is matched with the position of an induction part on the floater so as to realize the induction trigger of the water level of the added water. Firstly, the water level sensing mechanism is arranged on the independently arranged flow guide cover, so that the installation and the replacement can be facilitated, the manufacturing and maintenance cost can be effectively reduced compared with the arrangement on the built-in water tank, the sensing matching position between the sensing piece on the floater and the sensing trigger device on the flow guide cover can be set conveniently, secondary calibration is not needed, and the trigger sensitivity and the installation efficiency are effectively improved. Secondly, the response trigger device sets up alone and can keep apart with the water storage on the water conservancy diversion lid, is favorable to reducing the risk of wading.

The water level sensing mechanism is improved, the guide pipe is a cylindrical through pipe extending towards the bottom direction of the water storage container, and the floater is a cylinder accommodated in the guide pipe; the guide pipe is provided with a vertically arranged limiting groove, and the floater is provided with a sliding block which is embedded with the limiting groove. On the one hand, by utilizing the cylindrical structural characteristics, the guide pipe and the floater are both arranged into cylindrical through pipes and cylindrical structures which are matched with each other, so that the mobility of the floater in the guide pipe is favorably improved, the smoothness of the up-and-down displacement movement of the floater in the guide pipe is effectively improved, and the induction triggering effect is ensured. On the other hand, in order to control the moving range of the float, a limit structure which is matched with the guide pipe is arranged, the limit structure is preferably a vertical limit groove arranged on the guide pipe and a slide block on the float, the displacement range of the float can be limited through the scarf joint and matching of the slide block and the limit groove, and the float is prevented from falling out of the guide pipe; and the floater can be limited to be incapable of horizontally rotating and only capable of vertically moving in the guide pipe, so that the induction part on the floater and the induction trigger device on the flow guide cover can be accurately aligned, the distance of the induction matching position is ensured not to be changed, and the stability of water level induction is improved.

Optionally, the guide pipe is further provided with a guide groove, a protrusion which is in scarf joint with the guide groove is arranged on the periphery of the float, and the sensing piece is arranged in the protrusion; the guide cover is provided with a mounting seat used for mounting the induction trigger device, and the mounting seat is matched with the guide groove of the guide pipe. The water storage device is characterized in that the water storage device comprises a mounting seat, a floater, a sensing piece, a sensing trigger device and a water storage container, wherein the mounting seat is arranged on the top end of the water storage container, the water storage container is provided with a water inlet, the water inlet is arranged on the top end of the water storage container, the water inlet is arranged on the bottom end of the water storage container, the water outlet is arranged on the top end of the water storage container, the water storage container is provided with a water outlet, the mounting seat is arranged on the top end of the water storage container, the water inlet is arranged on the bottom end of the water storage container, the water storage container is provided with a water inlet, the water storage container is provided with a water storage hole, and the water storage container is provided with a water inlet.

Optionally, the upper end of the guide groove of the guide tube is provided with a limiting part for limiting the upward moving position of the protrusion; the bottom of the float is provided with a lower opening, a pneumatic cavity for storing gas is arranged in the float, and the pneumatic cavity is communicated with the lower opening. The water level sensing device in the dishwasher in the prior art generally sets the floater to be less than water in integral density and has a structure of a magnetic inductor integrated inside in order to sense the maximum water level value to remind a user to control the water adding amount. According to the volume and the whole weight of the floater, the floating or sinking of the floater is controlled, and the requirement on the whole density of the floater is high. Moreover, because the integral density of the floater is high, the water level for supporting the floater is positioned at the middle upper part of the floater, so that the induction trigger generated by the alignment of the induction part on the floater and the induction trigger device is easy to delay, and when a reminding signal is sent, the water adding stopping operation of a user is slow, so that the problem of water overflow is easy to occur. Aiming at the technical problem that the inductive triggering of the float in the prior art is easy to delay, the structure of the float is improved. Firstly, the sensing piece on the floater is arranged in the bulge on the periphery of the floater, the inside of the floater is provided with an air pressure cavity, and the bottom of the floater is provided with a lower opening communicated with the air pressure cavity. The structure of the floater is changed, so that the density of the floater is reduced, the material consumption is saved, and the manufacturing cost is reduced. Secondly, when the bottom of the float contacts with water and the water level rises and falls, the air pressure in the air pressure cavity of the float changes, and the changed air pressure enables the float to be lifted by the water and to move up and down in the conduit. In practical application, the air pressure change of the air pressure cavity is utilized to realize the displacement of the floater, so that the water level for supporting the floater is kept at the lower part of the floater; and, the projection on the float is restricted in upward movement height by the restricting portion at the upper end of the guide groove to simultaneously serve as a highest point position for restricting upward movement of the float in the guide tube. Therefore, the floater moves upwards after being supported by water, the sensing part in the protrusion can reach the highest point preferentially, and the sensing trigger device matched with the position generates a sensing trigger signal, so that a reminding signal is generated before the highest water level of the water storage container, a user is reminded of stopping water adding operation in time, an early warning effect is effectively achieved, and the risk of water overflow is reduced.

Optionally, an isolation gap is provided between an outer wall of the float and an inner wall of the conduit; and the lower end of the guide groove of the guide pipe is provided with an air vent communicated with the isolation gap. In practical application, when a user manually adds water into a built-in water storage container, water flow basically covers the whole water adding tray, the internal air pressure of the water storage container is increased, the water adding tray can generate a large amount of bubbles to overflow, and the situation that water flows backwards and splashes out easily occurs; moreover, the internal air pressure of the water storage container can influence the water adding speed, so that the water adding time is prolonged. Therefore, an isolation gap is arranged between the outer wall of the floater and the inner wall of the guide pipe, and the isolation gap has the function of enabling a movable space to be formed between the floater and the guide pipe on one hand, so that the floater can normally move up and down in the guide pipe, and the normal work of the floater is ensured. On the other hand, the isolation gap also plays a role in balancing the internal and external air pressures of the water storage container, effectively prevents water from splashing backwards, enables the water adding flow rate to be normal, and shortens the water adding operation time. In addition, the lower end of the guide groove of the guide pipe is provided with a vent communicated with the isolation gap, so that the vent area can be further increased, and the air pressure balance effect is improved.

The mounting structure of the flow guide cover is improved, the top cover is provided with fixed seats positioned at two sides of the water inlet, and the fixed seats are provided with fixed holes; the guide cover is provided with a connecting lug which is embedded with the fixed seat, and the connecting lug is provided with a connecting hole matched with the position of the fixed hole; a first surrounding edge is arranged on the periphery of the water adding disc, and the flow guide cover is installed on the water adding disc and is contained in the first surrounding edge; the water feeding cover is provided with a water feeding port communicated with the outside of the dishwasher, the water feeding cover is further provided with a fixing ring surrounding the water feeding port, and at least one part of ring body on the fixing ring protrudes out of the edge of the water feeding cover and is placed on the first periphery of the water feeding disc. On the one hand, let the water conservancy diversion lid install on the junction of adding water dish and top cap to through the engaging lug that the water conservancy diversion was covered and the fixing base scarf joint on the top cap, can make the fixed orifices on engaging lug and the fixing base counterpoint each other simultaneously, fix like the screw with installing the fastener additional. On the other hand, be equipped with the solid fixed ring that sets up around the filler on the water conservancy diversion lid, the edge setting that the partial ring body of this solid fixed ring protrusion water conservancy diversion lid lets the usable solid fixed ring of water conservancy diversion lid shelve on the first surrounding edge of adding the water tray to make the water conservancy diversion lid install in water container's top smoothly, be favorable to the water level induction mechanism on the water conservancy diversion lid to accurately detect the water level height, in time trigger warning signal. In addition, the first surrounding edge on the water adding plate can enclose the diversion cover, so that water overflow is effectively prevented.

The filter structure of the flow guide cover is improved, a filter disc connected with the fixing ring is arranged on the flow guide cover, and the filter disc and the flow guide cover are integrally formed; the filter disc is provided with a filter structure, and the filter structure is a plurality of water holes or a plurality of water passing gaps which are uniformly distributed on the filter disc. The filtering piece arranged on the water tank of the dish washing machine in the prior art generally adopts a metal net or a nylon net, the metal net or the nylon net is integrally molded with the cover of a water filling port during production and manufacturing, the metal net or the nylon net is placed in a mold cavity during injection molding, the process has higher cost, defective products are more in the manufacturing process, and the production and manufacturing cost is increased. The filter disc and the flow guide cover are integrally formed, so that the filter disc is a part of the flow guide cover, and the manufacturing defective products and the cost can be effectively reduced. The filtering structure on the filtering disc can be preferably a water passing hole or a water passing gap which is uniformly distributed on the filtering disc, and can filter large-particle impurities in the water in a user's home, so that the same filtering purpose is achieved, and the manufacturing cost is effectively reduced.

Optionally, a water filling cover for covering the water filling port is further arranged on the flow guide cover, and a step for erecting the water filling cover is arranged in the fixing ring; the periphery of the filter disc is provided with a surrounding wall part, the surrounding wall part is provided with a plurality of through grooves communicated with the steps, and one or more of the through grooves are communicated with the filter structure; and a second surrounding edge is arranged on the flow guide cover, and one or more of the through grooves are communicated with the second surrounding edge and extend to the bottom of the second surrounding edge. Firstly, set up the step in the solid fixed ring of water conservancy diversion lid, utilize this step to support the lid of adding water, let the lid of adding water can scarf joint in adding the water mouth, not only make the surface parallel and level of water conservancy diversion lid pleasing to the eye, can form the filtration cavity with this filter disc mutual isolation again. Secondly, because deposit water liquid easily on the step, set up the logical groove of being connected with the step on the enclosure wall portion of filter disc, this logical groove can play the effect of unloading water, drains away the ponding on the step. And thirdly, the through groove is communicated with the second surrounding edge of the diversion cover and extends to the bottom of the second surrounding edge, so that the ventilation effect is achieved, and the air pressure balance effect between the water storage container and the outside of the dish washing machine is favorably improved.

Optionally, a handle groove for inserting a finger of a person is formed in the water adding cover, and a handle is arranged on the handle groove; the bottom of the filter disc is provided with an arc-shaped groove used for avoiding the handle groove. In order to cooperate above-mentioned embedded mounting structure who adds water and cover, add water and cover and set up the handle groove, set up the handle on the handle groove to make things convenient for the staff to mention, improve the operation accuracy effectively, promote user experience. In addition, the bottom of filter disc still is equipped with the arc recess, can enough play the dodge effect to adding the hand groove that covers, can utilize the shape characteristic of arc recess again to concentrate with the water liquid that adds, reduces water liquid sputtering effectively, is favorable to the user to add water operation and controls the water yield that adds, improves user's operation experience.

The structure of the dishwasher is improved, the inner container comprises a bottom plate and a top plate covered on the bottom plate, the bottom plate comprises a frame body with a rectangular cross section and an opening at one side, and the frame body comprises three side wall parts respectively connected with the top plate; the inner container also comprises an enclosure which encloses the peripheries of the three side wall parts, and the water storage container is formed by communicating cavities which are arranged at intervals between the enclosure and the three side wall parts; the top cover of the water storage container is connected with the top plate, and the water adding disc extends to the top plate; the diversion cover is matched with the water adding disc and the top cover in shape and covers the water inlet of the water adding disc and the top cover.

Firstly, the water storage container is formed by communicating cavities arranged between the surrounding shell on the inner container and the three side wall parts of the inner container at intervals, so that the water storage container is integrated on the inner container of the dish washing machine and is integrally formed with the inner container, and the internal space of the dish washing machine is effectively utilized. This water storage container integrated on inner bag can enough promote the water storage volume, can make dish washer's whole outward appearance size effectively reduce again, can reduce the quantity of mould effectively, reduces the die sinking cost. And moreover, the structure of the water storage container is integrated on the inner container, so that the water storage container is tightly attached to the inner container, when the dish-washing machine washes, the water heat in the inner container can be simultaneously conducted into the water storage container, the water heat utilization rate is effectively improved, and the energy consumption of the dish-washing machine is reduced.

And the water adding disc of the water storage container extends to the top plate of the inner container, so that water adding water flow passes through the water adding disc and is guided into the water storage container, the water flow speed is effectively controlled, and a user can conveniently control the water adding amount.

Thirdly, the flow guide cover is matched with the water adding disc and the top cover in shape, so that the top of the liner integrated with the water storage container is flat and attractive; and the diversion cover can completely cover the water inlet of the water adding tray and the water inlet of the top cover, so that the sealing effect is effectively improved, and the overflow is prevented.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a first perspective view of an inner container of a dishwasher according to an embodiment of the present disclosure;

FIG. 2 is a first schematic sectional view of the inner container of the dishwasher according to the embodiment of the present application;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic perspective view of a first flow guide cover according to an embodiment of the present disclosure;

FIG. 5 is a schematic perspective view of a float according to an embodiment of the present disclosure;

FIG. 6 is a schematic cross-sectional view of a second inner container of the dishwasher according to the embodiment of the present application;

FIG. 7 is an enlarged view of section C of FIG. 6;

fig. 8 is a schematic perspective view of a top cover of the water storage container according to the embodiment of the present application;

fig. 9 is an assembly structure view of the top cover and the deflector provided in the embodiment of the present application;

fig. 10 is a schematic perspective view illustrating a second embodiment of a flow guide cover according to the present disclosure;

FIG. 11 is an enlarged view of the portion B of FIG. 2;

FIG. 12 is a schematic perspective view of a second inner container of a dishwasher according to an embodiment of the present application;

fig. 13 is a schematic workflow diagram of a dishwasher according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

100-inner container; 200-a water storage container;

1-a top cover; 11-a water inlet; 12-a fixed seat; 121-fixing holes;

2-adding a water tray; 21-a flow guide port; 22-a first peripheral edge;

3-a flow guide cover; 30-a water filling port; 31-an inductive triggering device; 32-a mounting seat; 33-connecting lugs; 331-connecting hole; 34-a fixed ring; 35-a filter disc; 351-a surrounding wall portion; 352-through groove; 353, an arc-shaped groove; 36-water adding cover; 361-handle groove; 362-a handle; 37-step; 38-a second peripheral edge;

4-a float; 40-isolation gap; 41-a sensing member; 42-a slide block; 43-convex; 44-lower opening; 45-air pressure chamber;

5-a catheter; 51-a limiting groove; 52-a guide groove; 521-a limiting part; 522-vent;

6-a chassis; 61-a sidewall portion; 7-a top plate; 8-enclosing shell.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

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

Referring to fig. 1 to 3 together, a description will now be given of a dishwasher according to an embodiment of the present application. The dish washing machine comprises an inner container 100, wherein a water storage container 200 is arranged on the inner container 100, a top cover 1 and a water adding disc 2 are arranged at the top of the water storage container 200, a water inlet 11 is arranged on the top cover 1, and a flow guide opening 21 communicated with the water inlet 11 is arranged on the water adding disc 2; the water adding tray 2 is provided with a flow guide cover 3, the flow guide cover 3 is provided with a water level sensing mechanism for detecting the water storage amount of the water storage container 200, the water level sensing mechanism comprises a floater 4 and a conduit 5 connected to the bottom of the flow guide cover 3, and the conduit 5 penetrates through the water inlet 11 and is inserted into the water storage container 200; the floater 4 is provided with a sensing part 41, and the floater 4 is arranged in the guide pipe 5 and can move up and down in the guide pipe 5 along with the change of the water level; the diversion cover 3 is provided with an induction trigger device 31 for inducing the position change of the floater 4 and generating a trigger signal when the induction piece 41 on the floater 4 approaches.

Compared with the prior art, the dishwasher that this application provided is equipped with the water storage capacity who is used for the water storage on the inner bag of dishwasher, sets up water conservancy diversion lid 3 on this built-in water storage container 200 adds water dish 2 and top cap 1, it sets up with top cap 1 intercommunication to add water dish 2 to make this water conservancy diversion lid 3 can arrange water storage container 200's top position in. The water level sensing mechanism is arranged on the diversion cover 3, and comprises a floater 4 and a conduit 5, the conduit 5 can be inserted into the water storage container 200, and the floater 4 is accommodated in the conduit 5 and moves up and down in the conduit 5 along with the change of the water level. The diversion cover 3 is also provided with a sensing trigger device 31 which is matched with the position of a sensing part 41 on the floater 4 so as to realize the sensing trigger of the water adding level. Firstly, the water level sensing mechanism is arranged on the independently arranged diversion cover 3, so that the installation and the replacement are facilitated, and compared with the arrangement on the built-in water tank, the water level sensing mechanism can effectively reduce the manufacturing and maintenance cost. Secondly, the inductive matching position between the inductive part 41 on the floater 4 and the inductive triggering device 31 on the flow guide cover 3 can be set conveniently without secondary calibration, and the triggering sensitivity and the installation efficiency are effectively improved. Thirdly, the induction trigger device 31 is independently arranged on the diversion cover 3 and can be isolated from the stored water, so that the wading risk is reduced.

In another embodiment of the present application, the water level sensing mechanism is optimized, please refer to fig. 3, 4 and 5, the conduit 5 is a cylindrical through pipe extending towards the bottom of the water storage container 200, and the float 4 is a cylinder accommodated in the conduit 5. By utilizing the cylindrical structural characteristics, the guide pipe 5 and the floater 4 are both arranged into cylindrical through pipes and cylindrical structures which are matched with each other, so that the mobility of the floater 4 in the guide pipe 5 is favorably improved, the smoothness of the up-and-down displacement motion of the floater 4 in the guide pipe 5 is effectively improved, and the induction triggering effect is ensured.

On the basis, in order to control the moving range of the float 4, a mutually-matched limiting structure is provided, please refer to fig. 4 and 5, the limiting structure is that the guide pipe 5 is provided with a vertically-arranged limiting groove 51, and the float 4 is provided with a sliding block 42 embedded with the limiting groove 51. The displacement range of the float 4 can be limited by the scarf joint of the slide block 42 and the limiting groove 51, and the float 4 is prevented from being separated from the guide pipe 5; and, can restrict the float 4 can not rotate horizontally but only make up and down displacement movement in the conduit at the same time, help the reaction 41 on the float 4 and reaction trigger device 31 on the flow guide cover 3 to can be aligned accurately, guarantee the distance of the reaction fit position will not change, improve the stability of water level reaction.

In another embodiment of the present application, referring to fig. 3, 4 and 5, the guide tube 5 is further provided with a guide groove 52, the float 4 is provided with a protrusion 43 engaged with the guide groove 52 on the outer circumference thereof, and the sensing member 41 is disposed in the protrusion 43; the diversion cover 3 is provided with a mounting seat 32 for mounting the induction triggering device 31, and the mounting seat 32 is matched with the guide groove 52 of the guide pipe 5. It is preferable that the guide groove 52 is aligned with the mounting seat 32 at the top end thereof, and when the float 4 floats to the highest limit position, the sensing member 41 provided on the protrusion 43 of the float 4 and the sensing trigger device 31 provided on the mounting seat 32 sense each other to generate a trigger signal. Wherein, the inductive trigger device 31 can adopt a hall or a reed switch, and the inductive part 41 on the floater 4 can preferably adopt a magnet. The induction trigger device 31 can transmit the generated trigger signal to the main control panel of the dish-washing machine, the control circuit of the main control panel can make a reminding alarm according to the received trigger signal, the alarm can be in a buzzing mode or a mode of generating warning information on a control display screen, or the two modes are carried out simultaneously, so as to remind a user that the water in the water storage container 200 is full, and the water adding amount is effectively controlled due to the fact that the water adding operation is stopped in time.

The water level sensing device in the dishwasher in the prior art generally sets the floater 4 to be less than water in integral density and has a structure of a magnetic inductor integrated inside in order to sense the maximum water level value to remind a user to control the water adding amount. According to the self volume and the whole weight of the floater 4, the floating or sinking of the floater 4 is controlled, and the requirement on the whole density of the floater 4 is high. Moreover, since the overall density of the float 4 is high, the water level for lifting the float 4 is located at the middle upper part of the float 4, so that the inductive trigger generated by the alignment of the inductive part 41 on the float 4 and the inductive trigger device 31 is easy to delay, and when a reminding signal is sent, the water adding stopping operation of a user is slow, so that the problem of water overflow is easy to occur. In order to solve the technical problem that the inductive triggering of the float 4 is easy to delay in the prior art, in another embodiment of the present application, the present application optimizes the structure of the float 4, please refer to fig. 3, the upper end of the guide groove 52 of the guide tube 5 is provided with a limiting part 521 for limiting the upward moving position of the protrusion 43; the bottom of the float 4 is provided with a lower opening 44, a pneumatic cavity 45 for storing gas is arranged in the float 4, and the pneumatic cavity 45 is communicated with the lower opening 44.

First, the sensing member 41 of the float 4 is disposed in the protrusion 43 on the outer periphery of the float 4, the interior of the float 4 has the air pressure chamber 45, and the bottom of the float 4 is provided with the lower opening 44 communicating with the air pressure chamber 45. The structure of the float 4 is changed, so that the density of the float 4 is reduced, the consumable material is saved, and the manufacturing cost is reduced.

Secondly, when the bottom of the float 4 is in contact with water and during the rising and falling of the water level, the air pressure in the air pressure chamber 45 of the float 4 is changed, and the changed air pressure causes the float 4 to be lifted by the water and to be displaced up and down in the guide duct 5. In practical application, the air pressure change of the air pressure cavity 45 is utilized to realize the displaced floater 4, so that the water level for supporting the floater 4 is kept at the lower part of the floater 4; and, the projection 43 on the float 4 is restricted in the upward movement height by the restricting portion 521 at the upper end of the guide groove 52 to simultaneously serve as the highest point position for restricting the upward movement of the float 4 in the guide tube 5. Therefore, the floater 4 moves upwards after being supported by water, the sensing part 41 in the protrusion 43 can reach the highest point preferentially, and the sensing trigger device 31 matched with the position generates a sensing trigger signal, so that a reminding signal is generated before the highest water level of the water storage container 200, a user is reminded to stop water adding operation in time, an early warning effect is effectively achieved, and the risk of water overflow is reduced.

In practical application, when a user manually adds water into the built-in water storage container 200, water flow basically covers the whole water adding tray 2, the internal air pressure of the water storage container 200 is increased, a large amount of bubbles are generated in the water adding tray 2 to overflow, and the situation that water flows backwards and splashes out easily occurs; also, the internal air pressure of the water container 200 affects the water adding speed, so that the water adding time is prolonged. To this end, in another embodiment of the present application, please refer to fig. 3, an isolation gap 40 is provided between the outer wall of the float 4 and the inner wall of the conduit 5. Wherein the separation gap 40 may be preferably set to 0.25 mm or more. The separation gap 40 provided between the outer wall of the float 4 and the inner wall of the conduit 5 acts: on one hand, a movable space is formed between the floater 4 and the guide pipe 5, so that the floater 4 can normally move up and down in the guide pipe 5, and the normal work of the floater 4 is ensured. On the other hand, the isolation gap 40 also has the function of balancing the internal and external air pressures of the water storage container 200, so that the water is effectively prevented from splashing backwards, the water adding flow rate is kept normal, and the water adding operation time is shortened.

On the basis, referring to fig. 4, the lower end of the guide groove 52 of the guide tube 5 is provided with a vent 522 communicating with the isolation gap 40, so that the vent area can be further increased, and the air pressure balance effect can be improved.

Referring to fig. 2, 3, 6 and 7, the working principle of the water level sensing mechanism of the present application is as follows:

the float 4 is arranged inside the guide pipe 5, and when the float 4 moves upwards, the highest point of the upwards movement is limited by the limiting part 521 of the protrusion 43 and the guide groove 52; when the float 4 moves downward, the lowest point of downward movement is restricted by the lower ends of the slider 42 and the stopper groove 51. The float 4 is confined in the conduit 5 and performs a vertical displacement movement within a set range of the above-described structure. When a user adds water, the water level rises to push the floater 4 to move upwards in the guide pipe 5, the floater 4 is triggered when rising to a position opposite to the induction trigger device 31, the induction trigger device 31 transmits a signal to a main control board of the dish washing machine, the main control board responds, and an alarm signal or a signal that the water is fully added is fed back to remind the user to stop the water adding operation in time.

In another embodiment of the present application, the mounting structure of the flow guiding cover 3 is optimized, please refer to fig. 8, 9 and 10, the top cover 1 is provided with a fixing seat 12 located at two sides of the water inlet 11, and the fixing seat 12 is provided with a fixing hole 121; the diversion cover 3 is provided with a connecting lug 33 which is embedded with the fixed seat 12, and the connecting lug 33 is provided with a connecting hole 331 which is matched with the position of the fixed hole 121; a first surrounding edge 22 is arranged on the periphery of the water adding disc 2, and the diversion cover 3 is installed on the water adding disc 2 and is contained in the first surrounding edge 22; the flow guide cover 3 is provided with a water filling port 30 communicated with the outside of the dishwasher, the flow guide cover 3 is further provided with a fixing ring 34 arranged around the water filling port 30, and at least one part of ring body on the fixing ring 34 is arranged to protrude out of the edge of the flow guide cover 3 and is placed on the first surrounding edge 22 of the water filling tray 2. On one hand, let the water conservancy diversion lid 3 install on the junction of adding water tray 2 and top cap 1 to through the engaging lug 33 on the water conservancy diversion lid 3 and the fixing base 12 scarf joint on the top cap 1, can make the mutual counterpoint of connecting hole 331 on the engaging lug 33 and the fixed orifices 121 on the fixing base 12 simultaneously, fix with installing the fastener such as screw additional. On the other hand, the guide cover 3 is provided with the fixing ring 34 arranged around the water filling port 30, part of the ring body of the fixing ring 34 protrudes out of the edge of the guide cover 3, so that the guide cover 3 can be placed on the first surrounding edge 22 of the water filling tray 2 by using the fixing ring 34, the guide cover 3 is smoothly installed at the top of the water storage container 200, the water level sensing mechanism on the guide cover 3 can accurately detect the water level height, and the reminding signal is triggered in time. In addition, the first surrounding edge 22 on the water adding tray 2 can enclose the diversion cover 3, and effectively prevents water overflow.

The filtering piece arranged on the water tank of the dish-washing machine in the prior art generally adopts a metal net or a nylon net, the metal net or the nylon net is integrally molded with the cover of the water filling port 30 during production and manufacturing, the metal net or the nylon net is firstly placed in a mold cavity during injection molding, the process has higher cost, defective products are more during manufacturing, and the production and manufacturing cost is increased. In another embodiment of the present application, a filtering structure of the flow guiding cover 3 is optimized, referring to fig. 10, a filtering plate 35 connected to the fixing ring 34 is disposed on the flow guiding cover 3, and the filtering plate 35 and the flow guiding cover 3 are integrally formed, so that the filtering plate 35 is a part of the flow guiding cover 3, which can effectively reduce manufacturing defects and reduce cost. The filter disc 35 is provided with a filter structure, and the filter structure is a plurality of water holes or a plurality of water passing gaps which are uniformly distributed on the filter disc 35. The filtering structure on the filtering disc 35 can be preferably water holes or water gaps uniformly distributed on the filtering disc 35, so that large-particle impurities in the water in the house of a user can be filtered, the same filtering purpose is achieved, and the manufacturing cost is effectively reduced. The width of the water gap is 0.2-1.5 mm, or preferably 0.3-0.7 mm, and the length of the water gap is not limited.

In another embodiment of the present application, referring to fig. 9, 10 and 11, a water filling cover 36 for covering the water filling opening 30 is further disposed on the flow guiding cover 3, and a step 37 for erecting the water filling cover 36 is disposed in the fixing ring 34. The step 37 is utilized to support the water adding cover 36, so that the water adding cover 36 can be embedded in the water adding port 30, the surface of the flow guide cover 3 is flush and attractive, and the flow guide cover and the filter disc 35 can be isolated from each other to form a filter cavity.

As the step 37 is easy to accumulate water, the structure of the deflector cap 3 is optimized, and referring to fig. 10 and 11 together, a surrounding wall 351 is provided at the periphery of the filter disc 35, a plurality of through grooves 352 communicated with the step 37 are provided on the surrounding wall 351, one or more of the plurality of through grooves 352 are communicated with the filter structure, and the through groove 352 can play a role of discharging water, so as to drain away the accumulated water on the step 37.

Referring to fig. 4, 10 and 11, a second peripheral edge 38 is disposed on the flow guiding cover 3, and one or more of the through slots 352 are communicated with the second peripheral edge 38 and extend to the bottom of the second peripheral edge 38. The through groove 352 also plays a role of ventilation, which is beneficial to improving the air pressure balance effect between the water storage container 200 and the outside of the dishwasher.

In order to cooperate with the embedded installation structure of the water filling cover 36, please refer to fig. 9 and 11 together in another embodiment of the present application, a handle groove 361 for inserting fingers is formed on the water filling cover 36, and a handle 362 is formed on the handle groove 361, so as to facilitate lifting by a human hand, effectively improve the operation accuracy, and improve the user experience.

On the basis, referring to fig. 11, an arc-shaped groove 353 for avoiding the handle groove 361 is formed at the bottom of the filter disc 35. This arc recess 353 can enough play the dodge effect to the handle groove 361 on the lid 36 that adds water, can utilize the shape characteristic of arc recess 353 again will add water liquid and concentrate, reduces water liquid sputtering effectively, is favorable to the user to add water operation and controls adding the water yield, improves user's operation experience.

In another embodiment of the present application, the structure of the dishwasher is optimized, please refer to fig. 1 and 12, the inner container 100 includes a bottom plate 6 and a top plate 7 covering the bottom plate 6, the bottom plate 6 includes a frame body with a rectangular cross section and an opening on one side, the frame body includes three side wall portions 61 respectively connected to the top plate 7; the inner container 100 further comprises an enclosure 8 enclosing the peripheries of the three side wall parts 61, and the water storage container 200 is formed by communicating cavities arranged at intervals between the enclosure 8 and the three side wall parts 61; the top cover 1 of the water storage container 200 is connected with the top plate 7, and the water adding tray 2 extends to the top plate 7; the diversion cover 3 is matched with the water adding disc 2 and the top cover 1 in shape and covers the water adding disc 2 and the water inlet 11.

Firstly, the water storage container 200 is formed by communicating cavities arranged at intervals between the enclosure 8 on the inner container 100 and the three side wall portions 61 of the inner container 100, so that the water storage container 200 is integrated on the inner container 100 of the dishwasher and is integrally formed with the inner container 100, thereby effectively utilizing the inner space of the dishwasher. This water storage container 200 integrated on inner bag 100 can enough promote the water storage volume, can make the whole external dimension of dish washer effectively reduce again, can reduce the quantity of mould effectively, reduces the die sinking cost. Moreover, the structure of the water storage container 200 is integrated on the inner container 100, so that the water storage container 200 is tightly attached to the inner container 100, when the dishwasher washes, the water heat in the inner container 100 can be simultaneously conducted into the water storage container 200, the water heat utilization rate is effectively improved, and the energy consumption of the dishwasher is reduced.

Secondly, the water adding tray 2 of the water storage container 200 extends to the top plate 7 of the inner container 100, so that the water adding water flow passes through the water adding tray 2 and is guided into the water storage container 200, the water flow speed is effectively controlled, and the water adding amount is conveniently controlled by a user.

Thirdly, the flow guide cover 3 is matched with the water adding disc 2 and the top cover 1 in shape, so that the top of the inner container 100 integrated with the water storage container 200 is flat and attractive; moreover, the diversion cover 3 can completely cover the water adding tray 2 and the water inlet 11 of the top cover 1, thereby effectively improving the sealing effect and preventing water overflow.

Referring to fig. 13, the operation principle of the dishwasher provided by the embodiment of the present application is as follows:

firstly, the dish-washing machine comprises two water inlet modes of water tank inlet and tap water inlet, and the water inlet function mode simultaneously exists. The water inlet mode of the waterway is as follows:

path: the dishwasher directly cleans tableware, and water is not stored in a water tank, so that the water tank only serves as a standby function;

path II: manual filler 30 is used to the storage water tank, when inconvenient connection running water halter or running water cut off water in the user family, manual through filler 30 toward the water tank in injected water and fill, when the machine washs the tableware, obtain the washing water through the storage water tank: a water storage tank, a water pump, a water pipe, a flowmeter, a water inlet anti-siphon, a water pipe, a water softener, a water pipe and a washing cavity;

the water softener and the corresponding water pipe are optional and can be selected according to different requirements for use, that is, the water softener and the matched water pipe are not required in the path, but the configuration is required.

Secondly, the control modes of two water inlet modes of water tank inlet and tap water inlet of the dish-washing machine are as follows:

After the user selects the washing program and presses the start key:

1, T value of 1(T value represents path selection times after water inlet failure)

2. Starting a water inlet waterway mode of the water inlet valve;

3. judging whether the flowmeter sends out a pulse total value larger than a set minimum pulse value to a main control board control circuit within a set time;

4. if the pulse total value is larger than the minimum pulse total value, judging that the tap water is normal, and continuously feeding water in a first mode until the pulse value fed back by the flowmeter corresponding to the single water feeding value set by the program corresponding to the washing program selected by the user is finished;

5. stopping water inflow, spraying and cleaning the tableware, and recording a water inflow path A (currently, recording the water inflow path A as phi).

6. When the flow meter in the step 2 is not in the set time, sending a total pulse value larger than the set minimum pulse value to the control circuit of the main control board;

7. if the pulse sum is less than the minimum pulse sum value, judging that the tap water fails to enter water, starting water inlet according to a second mode, and starting a water pump to pump the cleaning water in the water tank; and T ═ T +1

8. Judging whether the flowmeter sends out a pulse total value larger than a set minimum pulse value to a main control board control circuit within a set time;

9. if the pulse value is larger than the minimum pulse total value, the water tank is judged to contain washing water, the water tank is filled with water normally, and water is filled continuously according to the second mode until the pulse value fed back by the flowmeter corresponding to the single water inlet value set by the program corresponding to the washing program selected by the user is finished;

10. Stopping water inflow, spraying and cleaning the tableware, and recording a water inflow path A (currently, recording that the water inflow path A is two). And resetting the value of T, T being 1

Wherein: the water inlet times of each user washing program are different, and the difference of water inlet 2 times and water inlet 3 times or water inlet 4 times exists. Namely, the washing program selected by the user is completed, and water is fed for many times in the middle.

11. When a user program runs halfway and needs to carry out water inlet for N +1 times on a washing cavity, the recorded water inlet path A value is preferentially selected for water inlet;

12. judging whether the flowmeter sends out a pulse total value larger than a set minimum pulse value to a main control board control circuit within a set time;

13. if the pulse total value is larger than the minimum pulse total value, judging that the water inflow is normal under the current condition, and continuously feeding water in a mode (the current path A value) until the pulse value fed back by the flowmeter corresponding to the single water inflow value set by the program corresponding to the washing program selected by the user is finished;

14. if the current water inlet path is smaller than the minimum pulse total value, judging that the water inlet fails under the current condition, switching another water inlet path of the current path, assigning a value to the current path A, and if the current water inlet path is phi, switching to phi and reassigning the current path A)

15. Judging whether the flowmeter sends out a pulse total value larger than a set minimum pulse value to a main control board control circuit within a set time;

16. If the water content is larger than the preset value, water is fed to the reaction kettle until the reaction is finished. If less than, the step 14 is returned. And when the T value is greater than 3, prompting alarm information and feeding back water shortage.

By the mode, tap water does not need to pass through the built-in water tank, the water inlet time is effectively shortened, the machine runs in a short time, and water flow is sprayed to clean tableware. The machine is whole, and the reaction is sensitive and response speed is fast, promotes user's use and experiences, improves user's purchase desire.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dish washing machine comprises an inner container and is characterized in that a water storage container is arranged on the inner container, a top cover and a water adding disc are arranged at the top of the water storage container, a water inlet is formed in the top cover, and a flow guide opening communicated with the water inlet is formed in the water adding disc; the water adding tray is provided with a flow guide cover, the flow guide cover is provided with a water level sensing mechanism for detecting the water storage capacity of the water storage container, the water level sensing mechanism comprises a floater and a guide pipe connected to the bottom of the flow guide cover, and the guide pipe penetrates through the water inlet and is inserted into the water storage container; the floater is arranged in the guide pipe and can move up and down in the guide pipe along with the change of the water level; the diversion cover is provided with an induction trigger device which is used for inducing the position change of the floater and generating a trigger signal when an induction piece on the floater approaches.

2. The dishwasher of claim 1, wherein the conduit is a cylindrical through pipe extending towards the bottom of the water storage container, and the float is a cylinder accommodated in the conduit; the guide pipe is provided with a vertically arranged limiting groove, and the floater is provided with a sliding block which is embedded with the limiting groove.

3. The dishwasher of claim 2, wherein the guide duct is further provided with a guide groove, the float is provided at an outer circumference thereof with a protrusion engaged with the guide groove, and the sensing member is provided in the protrusion; the guide cover is provided with a mounting seat used for mounting the induction trigger device, and the mounting seat is matched with the guide groove of the guide pipe.

4. The dishwasher of claim 3, wherein the guide groove upper end of the guide duct is provided with a stopper for stopping the upward moving position of the protrusion; the bottom of the float is provided with a lower opening, a pneumatic cavity for storing gas is arranged in the float, and the pneumatic cavity is communicated with the lower opening.

5. The dishwasher of claim 4, wherein an isolation gap is provided between an outer wall of the float and an inner wall of the conduit; and the lower end of the guide groove of the guide pipe is provided with an air vent communicated with the isolation gap.

6. The dishwasher of claim 1, wherein the top cover is provided with fixing seats at both sides of the water inlet, and the fixing seats are provided with fixing holes; the guide cover is provided with a connecting lug which is embedded with the fixed seat, and the connecting lug is provided with a connecting hole matched with the position of the fixed hole; a first surrounding edge is arranged on the periphery of the water adding disc, and the flow guide cover is installed on the water adding disc and is contained in the first surrounding edge; the water feeding cover is provided with a water feeding port communicated with the outside of the dishwasher, the water feeding cover is further provided with a fixing ring surrounding the water feeding port, and at least one part of ring body on the fixing ring protrudes out of the edge of the water feeding cover and is placed on the first periphery of the water feeding disc.

7. The dishwasher of claim 6, wherein the deflector cover is provided with a filter plate connected with the fixing ring, and the filter plate is integrally formed with the deflector cover; the filter disc is provided with a filter structure, and the filter structure is a plurality of water holes or a plurality of water passing gaps which are uniformly distributed on the filter disc.

8. The dishwasher according to claim 7, wherein the deflector cover is further provided with a water filling cover for covering the water filling port, and the fixing ring is internally provided with a step for erecting the water filling cover; the periphery of the filter disc is provided with a surrounding wall part, the surrounding wall part is provided with a plurality of through grooves communicated with the steps, and one or more of the through grooves are communicated with the filter structure; and a second surrounding edge is arranged on the flow guide cover, and one or more of the through grooves are communicated with the second surrounding edge and extend to the bottom of the second surrounding edge.

9. The dishwasher of claim 7, wherein the watering cover is provided with a handle slot for inserting a finger of a person, and the handle slot is provided with a handle; the bottom of the filter disc is provided with an arc-shaped groove used for avoiding the handle groove.

10. The dishwasher according to any one of claims 1 to 9, wherein the inner container comprises a bottom plate and a top plate covering the bottom plate, the bottom plate comprises a frame body with a rectangular cross section and an opening at one side, and the frame body comprises three side wall parts respectively connected with the top plate; the inner container also comprises an enclosure which encloses the peripheries of the three side wall parts, and the water storage container is formed by communicating cavities which are arranged at intervals between the enclosure and the three side wall parts; the top cover of the water storage container is connected with the top plate, and the water adding disc extends to the top plate; the diversion cover is matched with the water adding disc and the top cover in shape and covers the water inlet of the water adding disc and the top cover.