Water storage device and refrigerator

Abstract

The present invention provides a water storage device and a refrigerator, the water storage device comprising: a kettle having a kettle body and a cover body, the kettle body being used to store water, the cover body being used to open and close the kettle body; a float seat being fixed to the kettle body or the cover body, the float seat being provided with a water inlet for water in the kettle body to enter and exit; and a float being movably arranged in the float seat. The water storage device of the present invention adds a float seat and a float in the kettle, so that the water level in the kettle can be indicated based on the position of the float.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration and freezing devices, and in particular to a water storage device and a refrigerator. Background Art

[0002] In daily life, drinking cold water is a common water demand of people. For example, in the hot summer, people often drink cold water to cool down. As a common household appliance, refrigerators are used to make cold water. At present, there are generally two implementation schemes for refrigerators with cold water modules. One is that when the refrigerator leaves the factory, it is equipped with a separate water box as a tool for making cold water. Its structure is usually independent and placed in the drawer of the refrigerator or in parallel with the drawer of the refrigerator. When in use, the water box needs to be taken out manually, filled with water and then put back into the refrigerator. After the water temperature cools down, the water box is taken out and poured into the cup. The second is to place the cold water module in the door body, which is often integrated with the ice maker of the door body. In the first scheme, since the water box in the refrigerator is independent, it needs to be manually added with water. After adding water, the water box is heavy and inconvenient to take and put. In the pursuit of intelligence today, this scheme cannot match the current life concept and provide people with more convenient life needs. In the second solution, since the cold water module is placed in the refrigerator door, water can be taken from outside the refrigerator without opening the refrigerator door. However, the door of this solution is relatively thick and will take up more space inside the refrigerator. Summary of the invention

[0003] An object of the present invention is to provide a water storage device which is convenient for water level detection.

[0004] A further object of the present invention is to provide a water storage device which can be automatically filled with water.

[0005] In particular, the present invention provides a water storage device, comprising:

[0006] The kettle comprises a kettle body and a cover body, wherein the kettle body is used for storing water and the cover body is used for opening and closing the kettle body;

[0007] A float seat is fixed to the kettle body or the cover body, and a water inlet is provided on the float seat for water in the kettle body to flow in and out; and

[0008] The float is movably arranged in the float seat.

[0009] Optionally, the float seat is fixed to the cover body.

[0010] Optionally, the cover body is formed with a plurality of fixing pins extending downwardly on its lower surface;

[0011] A plurality of seat fixing holes are formed on the float seat at positions corresponding to the plurality of fixing pins;

[0012] After the fixing pin is inserted into the fixing hole of the seat, it is softened by heat to form a cap-type structure to realize the fixing of the float seat and the cover body.

[0013] Optionally, the float comprises: a float body, a float cover and a magnetic member, wherein

[0014] The float cover is arranged above the float body and defines a cavity between the float cover and the float body. The magnetic member is arranged in the float cover.

[0015] Optionally, the float cover and the float body are connected by hot melt; and / or

[0016] The magnetic part is cast and fixed in the float cover.

[0017] Optionally, the float seat has a bottom wall portion and a side wall portion, a water outlet is provided on the bottom wall portion and / or the side wall portion, and a plurality of limiting edges are formed at intervals on the inner side surface of the side wall portion;

[0018] The float body is sandwiched between a plurality of limiting edges.

[0019] Optionally, the water storage device further comprises:

[0020] A device cover having a receiving cavity defined therein, wherein the kettle is detachably disposed below the device cover; and

[0021] The water inlet pipe is arranged in the accommodating cavity, the outlet end of which extends into the kettle, and the inlet end of which is connected to the external water pipe so as to introduce water into the kettle.

[0022] Optionally, the water storage device further comprises:

[0023] A water level monitoring circuit board is arranged in the accommodating cavity, and a first magnetoresistor and a second magnetoresistor are arranged on the circuit board. The first magnetoresistor and the second magnetoresistor are arranged at different upper and lower positions and front and back positions on the water level monitoring circuit board.

[0024] Electric switchgear for opening and closing the waterway of the water inlet pipe; and

[0025] The control device is connected to the water level monitoring circuit board and the electric switch device, and is used to control the action of the electric switch device to inject or not inject water into the kettle based on the signal of the interaction between the first magnetic sensitive resistor, the second magnetic sensitive resistor and the magnetic member.

[0026] The present invention also provides a refrigerator having the above-mentioned water storage device.

[0027] Optionally, the refrigerator comprises:

[0028] The box body has a storage compartment defined in the inner liner of the box body;

[0029] The water storage device is arranged in the storage room.

[0030] The water storage device and refrigerator of the present invention are configured to include a kettle, a float seat and a float. The float seat is configured to be fixed to a kettle body or a cover body, a water inlet is opened on the float seat for water in the kettle body to enter and exit, the float is movably arranged in the float seat up and down, and the float seat and the float are added in the kettle, so that the water level in the kettle can be indicated based on the position of the float.

[0031] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0033] Figure 1 2 is a schematic structural diagram of a refrigerator having a water storage device according to an embodiment of the present invention.

[0034] Figure 2 yes Figure 1 A structural schematic diagram of the water storage device and inner tank shown.

[0035] Figure 3 yes Figure 2 Another structural schematic diagram of the water storage device and inner tank shown.

[0036] Figure 4 yes Figure 2 A schematic top view of the water storage device and the inner tank shown.

[0037] Figure 5 yes Figure 4 Schematic cross-sectional view along line AA.

[0038] Figure 6 yes Figure 2 Schematic diagram of explosion decomposition of water storage device and inner tank etc. shown.

[0039] Figure 7 yes Figure 2 Schematic diagram of explosion decomposition of the device cover and inner tank of the water storage device shown.

[0040] Figure 8 It is a schematic diagram of the structure of the shielding cover.

[0041] Fig. 9 yes Figure 2 The diagram shown is a partial enlarged schematic diagram of the device cover of the water storage device and some parts of the kettle.

[0042] Fig.10 yes Figure 2 An exploded schematic diagram of the circuit board base, water inlet pipe, connector and external water pipe of the water storage device shown.

[0043] Fig.11 yes Figure 2 A partial cross-sectional schematic diagram of a water inlet pipe, a connector and an external water pipe of a water storage device is shown.

[0044] Fig.12 yes Figure 2 A schematic structural diagram of a float seat and a float of a water storage device is shown.

[0045] Fig.13 yes Figure 2 A schematic structural diagram of a float seat, a float and a cover body of a water storage device is shown.

[0046] Fig.14 yes Figure 2 The schematic cross-sectional view of the water level monitoring circuit board, cover, float seat and float of the water storage device is shown.

[0047] Fig.15 yes Figure 2 The circuit schematic diagram of the water storage device shown.

[0048] Fig.16 yes Figure 2 The control flow chart of placing a kettle of a water storage device into an inner tank is shown. DETAILED DESCRIPTION

[0049] Figure 1 4 is a schematic structural diagram of a refrigerator 400 having a water storage device 100 according to an embodiment of the present invention. Figure 2 yes Figure 1 A schematic structural diagram of the water storage device 100 and the inner tank 402 is shown. Figure 3 yes Figure 2 Another schematic diagram of the structure of the water storage device 100 and the inner tank 402 is shown. Figure 4 yes Figure 2 The water storage device 100 and the inner tank 402 are shown in a top view. Figure 5 yes Figure 4 Schematic cross-sectional view along line AA.

[0050] The embodiment of the present invention provides a refrigerator 400, which is a storage device including a refrigeration system, and generally includes a box body 401, a door body (not shown in the figure), a refrigeration system (not shown in the figure) and a water storage device 100. The box body 401 is composed of an outer shell, an inner liner 402, and an insulating layer located between the outer shell and the inner liner 402. At least one storage compartment with an open front side is defined in the inner liner 402 of the box body 401. There are usually multiple storage compartments, such as a refrigeration compartment 403, a freezer compartment 404, a variable temperature compartment, and the like. The number and function of specific storage compartments can be configured according to pre-determined requirements. For example, the storage temperature of the refrigeration compartment 403 can be 2 to 9°C or 4 to 7°C; the storage temperature of the freezer compartment 404 can be -22 to -14°C or -20 to -16°C. Figure 1 As shown, the storage compartment includes a refrigerating compartment 403 and a freezing compartment 404, and the freezing compartment 404 is arranged below the refrigerating compartment 403. The refrigeration system may be a compression refrigeration cycle system composed of a compressor, a condenser, a throttling device, an evaporator, and the like.

[0051] The water storage device 100 of the embodiment of the present invention comprises a kettle 200, a float seat 203 and a float 204. The kettle 200 comprises a kettle body 201 and a cover 202. The kettle body 201 is used for storing water, and the cover 202 is used for opening and closing the kettle body 201. Figure 2 and Figure 6 As shown, a spout 212 is formed on the rear side of the kettle body 201, and a handle 211 is formed on the front side. The float seat 203 is fixed to the kettle body 201 or the cover body 202, and a water inlet 231 is provided on the float seat 203 for water in the kettle body 201 to enter and exit. The float 204 is movably arranged in the float seat 203. The water storage device 100 of the embodiment of the present invention is configured to include a kettle 200, a float seat 203 and a float 204, the float seat 203 is fixed to the kettle body 201 or the cover body 202, a water inlet 231 is provided on the float seat 203 for water in the kettle body 201 to enter and exit, the float 204 is movably arranged in the float seat 203, and the float seat 203 and the float 204 are added in the kettle 200, so that the water level in the kettle 200 can be indicated based on the position of the float 204.

[0052] like Figure 1 As shown, the water storage device 100 of the embodiment of the present invention is disposed in the storage compartment of the refrigerator 400. The water storage device 100 is generally disposed in the refrigerating compartment 403. Figure 1 In the embodiment, the water storage device 100 is disposed on a partition 431 in the refrigerating compartment 403 .

[0053] Fig.12 yes Figure 2 The schematic diagram of the structure of the float seat 203 and the float 204 of the water storage device 100 is shown. Fig.13 yes Figure 2 The structure diagram of the float seat 203, the float 204 and the cover body 202 of the water storage device 100 is shown. Fig.14 yes Figure 2 The schematic cross-sectional view of the water level monitoring circuit board 305 , the cover 202 , the float seat 203 and the float 204 of the water storage device 100 is shown.

[0054] The float seat 203 can be fixed to the kettle body 201 or to the cover 202. In some embodiments, the float seat 203 is fixed to the cover 202, and the fixing structure is simpler and more in line with user habits. Fig.13 As shown, the cover body 202 includes a cover body 221 and a cover side wall 222. A plurality of fixing pins 2211 are formed on the lower surface of the cover body 221 extending downward; a plurality of seat fixing holes 232 are formed on the float seat 203 at positions corresponding to the plurality of fixing pins 2211; the fixing pins 2211 are inserted into the seat fixing holes 232 and softened by heat to form a cap-type structure to fix the float seat 203 and the cover body 202. The cover body 202 can be made of PP material. During assembly, the fixing pins 2211 on the cover body 202 are inserted into the seat fixing holes 232 of the float seat 203, and the ends of the fixing pins 2211 extend out of the seat fixing holes 232. A soldering iron or other equipment is used to heat and soften the fixing pins 2211 and force them to form a fixed cap-type structure, so that the float seat 203 and the seat fixing holes 232 are firmly fixed. This connection is a permanent connection and cannot be disassembled after connection.

[0055] like Figure 5 and Fig.14 As shown, in some embodiments, the float 204 of the water storage device 100 of the embodiment of the present invention includes: a float body 241, a float cover 242 and a magnetic member 243, wherein the float cover 242 is arranged above the float body 241 and defines a cavity 244 between the float body 241, and the magnetic member 243 is arranged in the float cover 242. The magnetic member 243 can be, for example, a magnet. The magnetic member 243 is arranged to be located at the top of the float 204, so that the magnetic member 243 and the magnetic sensitive resistor on the water level monitoring circuit board 305 in the device cover 300 can be conveniently interacted, which is more conducive to the water level monitoring and water injection control of the water storage device 100. The float cover 242 and the float body 241 are connected by hot melt; and / or the magnetic member 243 is cast and fixed in the float cover 242. During injection molding, the magnetic member 243 is first placed in the mold of the float cover 242. After pouring, the magnetic member 243 is embedded in the float cover 242, which is an inseparable connection. Then, the float cover 242 is connected to the float body 241 by hot melting. After assembly, a closed hollow structure is formed between the float cover 242 and the float body 241 to prevent water from entering.

[0056] like Fig.12As shown, the float seat 203 of the water storage device 100 of the embodiment of the present invention has a bottom wall portion 233 and a side wall portion 234, a water outlet 231 is provided on the bottom wall portion 233 and / or the side wall portion 234, and a plurality of limiting ridges 235 are formed at intervals on the inner side surface of the side wall portion 234; the float body 241 is sandwiched between the plurality of limiting ridges 235. Usually, the water outlet 231 is provided on both the bottom wall portion 233 and the side wall portion 234 of the float seat 203, so as to make the movement of the float 204 more accurate. By forming a plurality of limiting ridges 235 at intervals on the inner side surface of the side wall portion 234, the up and down movement of the float 204 in the float seat 203 can be limited to prevent the float 204 from deflecting.

[0057] The water storage device 100 of the embodiment of the present invention further includes a device cover 300 and a water inlet pipe 304. A receiving chamber 311 is defined in the device cover 300. The kettle 200 is detachably arranged below the device cover 300. The water inlet pipe 304 is arranged in the receiving chamber 311, wherein the outlet end of the water inlet pipe 304 extends into the kettle 200, and the inlet end of the water inlet pipe 304 is connected to the external water pipe 800 so as to introduce water into the kettle 200. The water storage device 100 of the embodiment of the present invention is configured to include the kettle 200 and the device cover 300, and the water inlet pipe 304 is arranged in the receiving chamber 311. The water storage device 100 is provided with the water inlet pipe 304, so that water can be easily introduced into the kettle 200.

[0058] like Figure 2 As shown, the water storage device 100 is arranged in the storage room, the device cover 300 is connected to the inner tank 402, and the external water pipe 800 is located outside the inner tank 402. The refrigerator 400 of the embodiment of the present invention arranges the water storage device 100 in the storage room, connects the device cover 300 to the inner tank 402, and the kettle 200 is detachably arranged below the device cover 300, and the external water pipe 800 is located outside the inner tank 402, so that water can be directly introduced into the water storage device 100 by using the external water pipe 800 in the refrigerator 400, and the water storage device 100 only occupies a small space inside the refrigerator 400, and has no effect on the door body of the refrigerator 400.

[0059] The following is a description of the matching structure between the water storage device 100 and the refrigerator 400 according to the embodiment of the present invention. Figure 6 yes Figure 2 The exploded decomposition diagram of the water storage device 100 and the inner tank 402 is shown. Figure 7 yes Figure 2 The exploded diagram of the device cover 300 and the inner tank 402 of the water storage device 100 is shown.

[0060] In some embodiments, the refrigerator 400 of the embodiment of the present invention further includes: an embedded box 500. An installation opening 421 is provided on the inner tank 402. The embedded box 500 is configured to be fixed to the inner tank 402 at the installation opening 421, and the external water pipe 800 is fixed to the embedded box 500. The device cover 300 of the water storage device 100 of the embodiment of the present invention has a main body 301 and a fixing part 302, and the main body 301 defines a accommodating cavity 311. The fixing part 302 is located on a side of the main body 301 close to the installation opening 421 and is configured to be adapted to the embedded box 500 to achieve the fixing of the device cover 300 on the inner side of the inner tank 402. By providing the embedded box 500, the embedded box 500 can be first fixed to the inner tank 402, and then the device cover 300 can be fixed to the embedded box 500 to achieve the fixation of the device cover 300 and the inner tank 402. On the one hand, the water storage device 100 is a detachable structure. When the user has no need for cold water, the water storage device 100 can be removed to obtain a larger usable space inside the refrigerator 400; on the other hand, compared with directly molding the inner tank 402 to form a matching structure, the embedded box 500 can have a more complex and sophisticated structure, thereby ensuring the installation stability of the device cover 300, the embedded box 500 and the inner tank 402 and the sealing of the joint.

[0061] The embedded box 500 of the refrigerator 400 of the embodiment of the present invention has a first card slot 501 located at the top and opening upward; a first card protrusion 331 is formed on the fixing part 302 at a position corresponding to the first card slot 501; the inner liner 402 at the upper end of the installation opening 421 and the first card protrusion 331 are matched in the first card slot 501. By forming the first card slot 501 opening upward on the embedded box 500, the first card protrusion 331 of the fixing part 302 and the inner liner 402 at the upper end of the installation opening 421 are matched in the first card slot 501, so that the upper part of the fixing part 302 and the inner liner 402 can be simply and conveniently fixed. The embedded box 500 of the refrigerator 400 of the embodiment of the present invention also has a second card slot 502 located at the front and opening forward; a second card protrusion 332 is formed on the fixing part 302 at a position corresponding to the second card slot 502; the inner liner 402 at the front end of the installation opening 421 and the second card protrusion 332 are matched in the second card slot 502. By forming a second card slot 502 opening forward on the embedded box 500, the second card protrusion 332 of the fixing part 302 and the inner liner 402 at the front end of the installation opening 421 cooperate in the second card slot 502 to simply and conveniently fix the front part of the fixing part 302 to the inner liner 402.

[0062] In some embodiments, the embedded box 500 of the refrigerator 400 of the embodiment of the present invention has a first ridge 541 extending outward from at least the front of its top wall 532 and the front wall 533, a second ridge 542 extending upward from the front end of its top wall 532, and a third ridge 543 extending forward from the upper part or the upper middle part of the front end of its front wall 533; a first slot 501 is defined between the second ridge 542 and the first ridge 541, and a second slot 502 is defined between the third ridge 543 and the first ridge 541. The fixing portion 302 extends downward from the front end of its top wall 322 to form a first snap-in protrusion 331, and extends backward from the upper part or the upper middle part of the front end of its front wall 323 to form a second snap-in protrusion 332. Figure 6 and Figure 7 As shown, the embedded box 500 has a first convex ridge 541 extending outwardly around the front of the embedded box 500. When the embedded box 500 is installed, the first slot 501 of the embedded box 500 is first clamped on the edge of the installation opening 421 of the inner liner 402, and then the bottom of the embedded box 500 is clamped into the installation opening 421, and the first convex ridge 541 is close to the outer side of the inner liner 402. The third convex ridge 543 is only formed on the upper part or the middle upper part of the front end of the front wall 533 of the embedded box 500, and the second clamping protrusion 332 is only formed on the upper part or the middle upper part of the front end of the front wall 323 of the fixing part 302, so that the sliding device cover 300 can be fixed to the embedded box 500.

[0063] In some embodiments, the inner tank 402 of the refrigerator 400 of the embodiment of the present invention is further provided with a first mounting hole 422 near the mounting opening 421; a second mounting hole 3211 is provided on the fixing portion 302 at a position corresponding to the first mounting hole 422; a fixing member (not shown in the figure) is used to penetrate the second mounting hole 3211 and the first mounting hole 422 to achieve left-right fixation of the fixing portion 302 and the inner tank 402. In addition to the fixing structure of the slot protrusion of the embedded box 500 and the device cover 300, a fixing member is also used to further ensure stable installation. The fixing member can be a screw.

[0064] In some embodiments, the embedded box 500 of the refrigerator 400 of the embodiment of the present invention has a notch 5341 formed on its rear wall with its opening facing the inner container 402; a plug-in protrusion 3212 is formed on the fixing portion 302 at a position corresponding to the notch 5341; the plug-in protrusion 3212 fits in the notch 5341 to achieve vertical positioning of the fixing portion 302 and the embedded box 500. By providing the notch 5341 and the plug-in protrusion 3212, the installation of the device cover 300 can be completed by a single person.

[0065] like Figure 6As shown, the embedded box 500 has a side wall 531, a top wall 532, a front wall 533, a rear wall 534, a sloped wall 535 and a bottom wall 536. The front wall 533 and the rear wall 534 are opposite to each other front and back, the top wall 532 and the bottom wall 536 are opposite to each other up and down, and the sloped wall 535 is located between the top wall 532 and the rear wall 534. A pipe insertion port 5311 is provided on the side wall 531 for fixing the external water pipe 800. A first convex ridge 541 is provided at the front of the top wall 532, the front wall 533, the rear wall 534, the sloped wall 535 and the bottom wall 536. A second convex ridge 542 is formed extending upward at the front end of the top wall 532. A third convex ridge 543 is formed extending forward at the middle and upper part of the front end of the front wall 533. A first slot 501 is defined between the second ridge 542 and the first ridge 541, and a second slot 502 is defined between the third ridge 543 and the first ridge 541. In addition, a circuit 801 with an anti-overflow rubber ring is integrated on the bottom wall 536 of the embedded box 500.

[0066] like Figure 7 As shown, the fixing part 302 of the device cover 300 has a side wall 321, a top wall 322, a front wall 323, a rear wall 324, a sloped wall 325 and a bottom wall 326. The front wall 323 and the rear wall 324 are opposite to each other front and back, the top wall 322 and the bottom wall 326 are opposite to each other up and down, and the sloped wall 325 is located between the top wall 322 and the rear wall 324. A second mounting hole 3211 is provided near the rear wall 324 and the bottom wall 326 of the side wall 321, and a plug-in protrusion 3212 is provided near the second mounting hole 3211. A connecting port 3213 is provided in the main body of the side wall 321 for the water inlet pipe 304 and the connector 600 to pass through so as to be connected to the external water pipe 800. A first clamping protrusion 331 is formed extending downwardly at the front end of the top wall 322, and a second clamping protrusion 332 is formed extending backwardly at the middle and upper part of the front end of the front wall 323.

[0067] The device cover 300 of the refrigerator 400 of the embodiment of the present invention is detachably connected to the inner container 402. The refrigerator 400 of the embodiment of the present invention further includes: a shielding cover 700, which is configured to be adapted to the embedded box 500 and is used to shield the installation port 421 after the device cover 300 is removed from the inner container 402. When the device cover 300 is removed from the inner container 402, the installation port 421 and the external water pipe 800 will be exposed to the field of vision. By providing the shielding cover 700, the external water pipe 800 can be prevented from being contaminated, and the refrigerator 400 is more beautiful. Figure 8 3 is a schematic diagram of the structure of the shielding cover 700. The structure of the shielding cover 700 is similar to that of the fixing portion 302, except that the connecting opening 3213 is not provided on the side wall 321 of the shielding cover 700. Figure 8As shown, the shielding cover 700 has a side wall 321, a top wall 322, a front wall 323, a rear wall 324, a sloped wall 325 and a bottom wall 326. The front wall 323 and the rear wall 324 are opposite to each other front and back, the top wall 322 and the bottom wall 326 are opposite to each other up and down, and the sloped wall 325 is located between the top wall 322 and the rear wall 324. A second mounting hole 3211 is provided at the side wall 321 near the rear wall 324 and the bottom wall 326, and a plug-in protrusion 3212 is provided adjacent to the second mounting hole 3211. A first clamping protrusion 331 is formed extending downwardly at the front end of the top wall 322, and a second clamping protrusion 332 is formed extending backwardly at the middle and upper part of the front end of the front wall 323.

[0068] Fig. 9 yes Figure 2 The device cover 300 of the water storage device 100 and some parts of the kettle 200 are partially enlarged schematic diagrams. Fig.10 yes Figure 2 The schematic diagram of the exploded view of the circuit board base 306 , the water inlet pipe 304 , the connector 600 and the external water pipe 800 of the water storage device 100 is shown. Fig.11 yes Figure 2 The water inlet pipe 304, the connector 600 and the external water pipe 800 of the water storage device 100 are partially sectional views. Figures 9 to 11 The connection structure between the water inlet pipe 304 and the external water pipe 800 of the water storage device 100 according to the embodiment of the present invention is described.

[0069] The inlet end of the water inlet pipe 304 of the water storage device 100 of the embodiment of the present invention is detachably connected to the external water pipe 800 via the connector 600. The connector 600 comprises: a first cap 601, a connecting pipe 603 and a second cap 602, wherein the first cap 601 and the second cap 602 are respectively plugged and fixed to the connecting pipe 603; wherein the inlet end of the water inlet pipe 304 is connected to the connecting pipe 603 via the first cap 601; and the outlet end of the external water pipe 800 is connected to the connecting pipe 603 via the second cap 602. The water inlet pipe 304 and the external water pipe 800 are connected by the connector 600 having the first cap 601, the connecting pipe 603 and the second cap 602, so that the connection between them is a soft connection, which can be connected and disconnected multiple times. When the waterway is connected, the water inlet pipe 304 and the external water pipe 800 can be directly inserted into the connector 600 respectively. When removing the water channel, the connector 600 is pulled with force to separate the connector 600 from the external water pipe 800 in the box body 401 .

[0070] like Fig.10As shown, the connecting pipe 603 has a first fixed pipe section 631, a transition pipe section 633 and a second fixed pipe section 632 connected in sequence, and the inner diameters of the first fixed pipe section 631 and the second fixed pipe section 632 are larger than the inner diameter of the transition pipe section 633. The first cap 601 and the second cap 602 respectively have a cap body 611 and a plurality of stoppers 612, and a water pipe fixing hole 613 is provided on the cap body 611. The plurality of stoppers 612 extend from the inner side surface of the cap body 611 around the water pipe fixing hole 613 and are inserted into the fixed pipe sections on the corresponding sides. The inlet end of the water inlet pipe 304 passes through the water pipe fixing hole 613 of the first cap 601 and the end extends into the first fixed pipe section 631, and the outlet end of the external water pipe 800 passes through the water pipe fixing hole 613 of the second cap 602 and the end extends into the second fixed pipe section 632. The first cap 601 and the second cap 602 respectively have a cap body 611 and a plurality of stoppers 612, so that the first cap 601 and the second cap 602 have both certain strength and certain flexibility. In addition, the connector 600 may also include one or more sealing rings 604, which are arranged at the end of the inlet end of the water inlet pipe 304 and / or the end of the outlet end of the external water pipe 800. Usually, sealing rings 604 are arranged at the end of the inlet end of the water inlet pipe 304 and the end of the outlet end of the external water pipe 800.

[0071] like Fig. 9 and Fig.10 As shown, a circuit board base 306 is further provided in the device cover 300 of the water storage device 100 of the embodiment of the present invention, on which a plug-in column 364 is formed in the up-down direction, and the outlet end of the water inlet pipe 304 is inserted into the plug-in column 364 to realize the fixation of the water inlet pipe 304 and the device cover 300, wherein a notch 3641 is provided on the side wall of the plug-in column 364; and a protrusion 341 is formed on the outer surface of the water inlet pipe 304 in the plug-in column 364. By forming the plug-in column 364 with the notch 3641 on the circuit board base 306, and cooperating with the protrusion 341 at the outlet end of the water inlet pipe 304, the fixing structure of the water inlet pipe 304 in the device cover 300 is simple, and the water inlet pipe 304 can be firmly fixed on the circuit board base 306. A plurality of seat hooks 366 are formed on the circuit board base 306 for fixing the circuit board base 306 and the body 301.

[0072] Fig.15 yes Figure 2 The circuit diagram of the water storage device 100 is shown below. Figure 5 , Figure 6 , Figures 12 to 15 The water level monitoring structure and control method of the water storage device 100 according to the embodiment of the present invention are described.

[0073] The water storage device 100 of the embodiment of the present invention further includes: a water level monitoring circuit board 305, an electric switch device 901 and a control device 900. The water level monitoring circuit board 305 is arranged in the accommodating cavity 311. The water level monitoring circuit board 305 is provided with a first magnetic sensitive resistor 351 and a second magnetic sensitive resistor 352, and the first magnetic sensitive resistor 351 and the second magnetic sensitive resistor 352 are at different upper and lower positions and front and rear positions on the water level monitoring circuit board 305. The electric switch device 901 is used to open and close the water path of the water inlet pipe 304. The control device 900 is connected to the water level monitoring circuit board 305 and the electric switch device 901, and is used to control the action of the electric switch device 901 based on the interactive signal of the first magnetic sensitive resistor 351, the second magnetic sensitive resistor 352 and the magnetic member 243 to inject or not inject water into the kettle 200. By providing the electric switch device 901 and the control device 900, the water storage device 100 of the embodiment of the present invention can realize intelligent control of water level monitoring and automatic water injection, and meet the user's more convenient and intelligent living water needs.

[0074] The first magnetoresistance 351 and the second magnetoresistance 352 are at different upper and lower positions and front and back positions on the water level monitoring circuit board 305, so that the signal of the water level monitoring circuit board 305 can be different based on the different interactions between the first magnetoresistance 351, the second magnetoresistance 352 and the magnetic member 243, thereby indicating the state of the kettle 200. The state of the kettle 200 may include a water level state, a position state, and an entry and exit state. The water level state of the kettle 200 may include a state where no water injection is required and a state where water injection is required, and the position state of the kettle 200 may include a state where it is placed in place and a state where it is not placed in place. The entry and exit state of the kettle 200 may include the kettle 200 being put in and the kettle 200 being removed.

[0075] like Fig.14 As shown, in some embodiments, the kettle 200 is configured to be placed from front to back under the device cover 300. The water level monitoring circuit board 305 is arranged above the magnetic member 243 in the front-to-back direction, and the projection of the first magnetic sensitive resistor 351 on the vertical plane is below the projection of the second magnetic sensitive resistor 352, and the projection of the first magnetic sensitive resistor 351 on the horizontal plane is behind the projection of the second magnetic sensitive resistor 352. Such a configuration makes it possible that when the kettle 200 has different water level states, different position states, and different entry and exit states, the interaction between the first magnetic sensitive resistor 351, the second magnetic sensitive resistor 352, and the magnetic member 243 is obviously different, that is, whether the first magnetic sensitive resistor 351 and the second magnetic sensitive resistor 352 have signals, the order of the signals of the first magnetic sensitive resistor 351 and the second magnetic sensitive resistor 352, etc. will be different, thereby making it possible to indicate the water level state, position state, and entry and exit state of the kettle 200 based on the interaction between the first magnetic sensitive resistor 351, the second magnetic sensitive resistor 352, and the magnetic member 243.

[0076] Specifically, the magnetic member 243, the first magnetoresistor 351, and the second magnetoresistor 352 satisfy the following conditions:

[0077] v≤r;

[0078] u+v>r;

[0079] u+vw≤r;

[0080] Wherein, r is the effective radius of the magnetic member 243; v is the maximum vertical distance between the first magnetic sensitive resistor 351 and the magnetic member 243; u is the vertical distance between the first magnetic sensitive resistor 351 and the second magnetic sensitive resistor 352; w is the vertical movable distance of the magnetic member 243 in the kettle 200. The design purpose of the maximum vertical distance v≤r between the first magnetic sensitive resistor 351 and the magnetic member 243 is that when the kettle 200 is correctly placed under the device cover 300, the first magnetic sensitive resistor 351 can feel the magnetic force of the magnetic member 243 and have a signal. When the first magnetic sensitive resistor 351 has no signal, it means that the kettle 200 is not placed in place. The state of the kettle 200 not being placed in place includes two situations. One is that the kettle 200 is not placed under the device cover 300, for example, the kettle 200 is placed in other storage compartments of the refrigerator 400 or is moved out of the refrigerator 400; the other is that although the kettle 200 is placed under the device cover 300, it is not placed completely in place.

[0081] The effective action radius of the magnetic part 243 and the distance limitation conditions of the first magnetoresistor 351 and the second magnetoresistor 352 can realize the monitoring of the liquid level in the kettle 200: when the water in the kettle 200 does not lift the float 204, u+v>r, the second magnetoresistor 352 cannot feel the magnetic force of the magnetic part 243, and there is no signal, indicating that the liquid level is too low and water needs to be added; when the water in the kettle 200 lifts the float 204, u+vw≤r, the second magnetoresistor 352 can feel the magnetic force of the magnetic part 243, and there is a signal, indicating that water does not need to be added.

[0082] The magnetic force of the magnetic member 243 is related to the type of the magnetic member 243. As described above, the magnetic member 243 can be a magnet. Magnets of different specifications have different effective magnetic radius r. Generally, considering the cost factor, the water storage device 100 of the embodiment of the present invention uses a magnet with an effective magnetic radius r≤20mm as the magnetic member 243.

[0083] The projection of the first magnetoresistor 351 on the horizontal plane is behind the projection of the second magnetoresistor 352, that is, there is a front-to-back distance between the first magnetoresistor 351 and the second magnetoresistor 352. Therefore, it is possible to judge whether the kettle 200 is put in or taken out by the front-to-back order of whether the first magnetoresistor 351 and the second magnetoresistor 352 have signals. The front-to-back distance m between the first magnetoresistor 351 and the second magnetoresistor 352 is generally ≥10mm. For example, assuming that the kettle 200 is filled with water, when the second magnetoresistor 352 has a signal first and the first magnetoresistor 351 has a signal later, it means that the kettle 200 is put in; when the first magnetoresistor 351 has no signal first and the second magnetoresistor 352 has no signal later, it means that the kettle 200 is taken out.

[0084] like Fig. 9 and Fig.10 As shown, a plurality of fixing blocks 361 are formed on the circuit board base 306 and arranged at intervals along the front-back direction. A plurality of fixing blocks 361 are respectively provided with bayonet holes 3611, and the water level monitoring circuit board 305 is inserted into the bayonet holes 3611. At the same time, a plurality of hooks 362 are formed on the circuit board base 306 at positions adjacent to the fixing blocks 361, and the water level monitoring circuit board 305 is clamped between the hooks 362 and the circuit board base 306. By inserting the water level monitoring circuit board 305 into the bayonet holes 3611 and fixing it with the hooks 362, the water level monitoring circuit board 305 can be firmly fixed.

[0085] like Figure 6 As shown, the water level monitoring circuit board 305 is a special-shaped plate, and the lower end of the portion where the second magnetic sensitive resistor 352 is provided is higher than the lower end of the portion where the first magnetic sensitive resistor 351 is provided. A convex portion 365 is formed on the circuit board base 306, and the portion where the second magnetic sensitive resistor 352 is provided on the water level monitoring circuit board 305 is overlapped on the convex portion 365 of the circuit board base 306. By forming the convex portion 365 on the circuit board base 306, the portion where the second magnetic sensitive resistor 352 is provided on the water level monitoring circuit board 305 is overlapped on the convex portion 365 of the circuit board base 306, so that the water level monitoring circuit board 305 can be more firmly fixed on the circuit board base 306.

[0086] The projection of the left and right width of the protrusion 365 of the circuit board base 306 on the horizontal plane covers the handle 211 of the kettle body 201. A protrusion 2212 is formed on the cover body 221 of the cover body 202 corresponding to the protrusion 365 of the circuit board base 306, and the front end of the protrusion 2212 of the cover body 202 covers the upper end of the handle 211. A docking port 312 is provided at the lower part of the front side wall of the main body 301 of the device cover 300 at the position corresponding to the handle 211. By covering the upper end of the handle 211 with the front end of the protrusion 2212 of the cover body 202 and providing the docking port 312 on the device cover 300, the cooperation between the kettle 200 and the device cover 300 can be further limited, which is conducive to the user to quickly and accurately put the kettle 200 in place.

[0087] The water storage device 100 of the embodiment of the present invention may also be provided with a reminder device 902, which is used to issue a displacement reminder when the kettle 200 is not placed in place. The reminder device 902 may be integrated in the device cover 300. The control device 900 is connected to the reminder device 902, and is used to control the reminder device 902 to issue a displacement reminder when there is no signal from the first magnetic sensitive resistor 351. The reminder information may be, for example, a chirp.

[0088] Fig.16 yes Figure 2 The control flow chart of the water storage device 100 shown in FIG. 1 is a flow chart of the control of placing the kettle 200 of the water storage device 100 into the inner container 402. After the kettle 200 is placed in the refrigerator 400, the control method of the water storage device 100 of the embodiment of the present invention includes:

[0089] S102: Determine whether there is a signal in the first magnetoresistor 351; if so, execute step S104; if not, execute step S110.

[0090] S104: Determine whether the second magnetoresistor 352 has a signal; if so, execute step S106; if not, execute step S108.

[0091] S106: Control the electric switch device 901 to be closed, and do not inject water into the kettle 200.

[0092] S108: Control the electric switch device 901 to open and pour water into the kettle 200.

[0093] S110: Control the reminder device 902 to issue a displacement reminder.

[0094] After the kettle 200 is placed in the refrigerator 400, it is first determined whether the kettle 200 is in place. Since the first magnetoresistor 351 has a signal only after the kettle 200 is in place, it is possible to determine whether the kettle 200 is in place by determining whether the first magnetoresistor 351 has a signal. Therefore, when there is no signal from the first magnetoresistor 351, it means that the kettle 200 is not accurately placed under the device cover 300. At this time, the control reminder device 902 issues a displacement reminder. When there is a signal from the first magnetoresistor 351, it means that the kettle 200 has been placed in place. At this time, it is determined whether water needs to be injected into the kettle 200. Here, in order to simplify the control process of water injection, it can be set that when the float 204 is lifted by water, it is considered that the kettle 200 is full of water and no water injection is required. In other words, when there is a signal from the second magnetoresistor 352, it is considered that the kettle 200 is full of water and no water injection is required. Thus, when the second magnetoresistance 352 has a signal, the electric switch device 901 is controlled to be closed, and water is not added to the kettle 200. When the second magnetoresistance 352 has no signal, the electric switch device 901 is controlled to be opened, and water is added to the kettle 200 until the second magnetoresistance 352 has a signal.

[0095] The water storage device 100 of the embodiment of the present invention further includes: a signal processing circuit board 307. The signal processing circuit board 307 is disposed in the accommodating cavity 311, connected to the water level monitoring circuit board 305 and the control device 900, and is used to receive the signal output by the water level monitoring circuit board 305 and send it to the control device 900 after processing.

[0096] A plurality of fixing columns 363 are also formed on the circuit board base 306, and a first fixing hole 3631 is formed on the fixing column 363 and / or a plug-in rod 3632 is formed on the fixing column 363. A second fixing hole 371 is formed on the signal processing circuit board 307 at a position corresponding to the fixing column 363, and the signal processing circuit board 307 is fixed to the circuit board base 306 by penetrating the second fixing hole 371 with the fixing member 308 and / or inserting the plug-in rod 3632 into the second fixing hole 371. Figure 6 As shown, four fixing columns 363 are formed on the circuit board base 306, two fixing columns 363 are provided with first fixing holes 3631, plug-in rods 3632 are formed on the two fixing columns 363, and the first fixing holes 3631 and the plug-in rods 3632 are arranged diagonally in pairs, the plug-in rods 3632 are used for positioning the signal processing circuit board 307 during installation, and the first fixing hole 3631 is used to connect with the second fixing hole 371 to fix the signal processing circuit board 307.

[0097] In some embodiments, the signal processing circuit board 307 is configured to receive the signal states of the first magnetic sensitive resistor 351 and the second magnetic sensitive resistor 352 of the water level monitoring circuit board 305 and generate kettle state information. The control device 900 is used to control the action of the electric switch device 901 based on the kettle state information. The determination of the kettle state information can be determined by a preset mapping relationship, wherein the mapping relationship specifies the kettle state information corresponding to the signal state of the first magnetic sensitive resistor 351, the signal state of the second magnetic sensitive resistor 352, and the sequence of the signals of the first magnetic sensitive resistor 351 and the second magnetic sensitive resistor 352. For example, it is specified in the mapping relationship that "the first magnetic sensitive resistor 351 has a signal and the second magnetic sensitive resistor 352 has no signal" corresponds to the kettle state information "needs to be filled with water". For another example, it is specified in the mapping relationship that "the first magnetic sensitive resistor 351 has a signal first and the second magnetic sensitive resistor 352 has a signal later", and the corresponding kettle state information is "water is filled". For another example, it is stipulated in the mapping relationship that "the first magnetic sensitive resistor 351 has no signal first, and the second magnetic sensitive resistor 352 has no signal later", and the corresponding kettle status information is "the kettle 200 has been removed".

[0098] like Fig.15 As shown, the signal processing circuit board 307 can be powered by the control device 900 (which can be the main control board of the refrigerator 400), and there is a signal transmission line between the two; the water level monitoring circuit board 305 is powered by the signal processing circuit board 307, and there is a signal transmission line between the two; the opening and closing states of the electric switching device 901 (such as a solenoid valve) are controlled by the control device 900 according to the signal received from the signal processing circuit board 307; the reminder device 902 is controlled by the control device 900 according to the signal received from the signal processing circuit board 307.

[0099] The following describes several states and control examples of the water storage device 100 according to the embodiments of the present invention:

[0100] 1) When the kettle 200 is not placed under the device cover 300, the first magnetic resistor 351 and the second magnetic resistor 352 cannot sense the magnetic force of the magnetic member 243, and the first magnetic resistor 351 and the second magnetic resistor 352 have no signal output. The electric switch device 901 remains closed.

[0101] 2) When there is no water in the kettle 200 or the water level is not high, the float 204 is not lifted by the water. When the kettle 200 is placed under the device cover 300, the first magnetoresistor 351 is within the magnetic force range and can sense the magnetic force of the magnetic part 243, but the second magnetoresistor 352 is not within the magnetic force range and cannot sense the magnetic force of the magnetic part 243, that is, the first magnetoresistor 351 has a signal, but the second magnetoresistor 352 has no signal. The signal processing circuit board 307 receives the signal "the first magnetoresistor 351 has a signal, the second magnetoresistor 352 has no signal" output from the water level monitoring circuit board 305, and the corresponding kettle status information is "need to be filled with water". The signal processing circuit board 307 sends the kettle status information to the control device 900, and the control device 900 controls the electric switch device 901 to open and fill water into the kettle 200.

[0102] When the kettle 200 is filled with water, the float 204 is lifted by the water. At this time, the first magnetoresistor 351 and the second magnetoresistor 352 are both within the magnetic force range, can sense the magnetic force, and have signals. The signal processing circuit board 307 receives the signal "the first magnetoresistor 351 has a signal first, and the second magnetoresistor 352 has a signal later" output from the water level monitoring circuit board 305, and the corresponding kettle status information is "water is full". The signal processing circuit board 307 sends the kettle status information to the control device 900, and the control device 900 controls the electric switch device 901 to close and stop filling water into the kettle 200.

[0103] 3) When the kettle 200 is taken away in a full water state, the first magnetoresistor 351 first does not sense the magnetic force, and then the second magnetoresistor 352 also does not sense the magnetic force. The signal processing circuit board 307 receives the signal output from the water level monitoring circuit board 305 that "the first magnetoresistor 351 has no signal first, and then the second magnetoresistor 352 has no signal", and the corresponding kettle removal state information is "the kettle 200 has been removed". The signal processing circuit board 307 does not send a signal to the control device 900, and the electric switch device 901 remains closed.

[0104] 4) When the kettle 200 is taken away without being filled with water, the float 204 is not lifted by the water, the first magnetoresistor 351 cannot sense the magnetic force and becomes no signal, and the second magnetoresistor 352 cannot sense the magnetic force at all. The signal processing circuit board 307 receives the signal "no signal from the first magnetoresistor 351 and no signal from the second magnetoresistor 352" output from the water level monitoring circuit board 305, and the corresponding kettle removal status information is "the kettle 200 has been removed". The signal processing circuit board 307 does not send a signal to the control device 900, and the electric switch device 901 remains closed.

[0105] 5) When the kettle 200 is placed under the device cover 300 in a full water state, the second magnetoresistor 352 senses the magnetic force first, and then the first magnetoresistor 351 senses the magnetic force. The signal processing circuit board 307 receives the signal output from the water level monitoring circuit board 305 that "the second magnetoresistor 352 has a signal first, and the first magnetoresistor 351 has a signal later", and the corresponding kettle state information is "the kettle 200 is full of water and placed in". The signal processing circuit board 307 does not send a signal to the control device 900, and the electric switch device 901 remains closed.

[0106] 6) When the kettle 200 is put in with full water, but the kettle 200 is not placed in the correct position, the second magnetoresistor 352 senses the magnetic force, while the first magnetoresistor 351 does not sense the magnetic force. The signal processing circuit board 307 receives the signal "the second magnetoresistor 352 has a signal, the first magnetoresistor 351 has no signal" output from the water level monitoring circuit board 305, and the corresponding kettle status information is "the kettle 200 is put in with full water, but the placement is incorrect". The signal processing circuit board 307 does not send a signal to the control device 900, and the electric switch device 901 remains closed. The signal processing circuit board 307 can also send the status signal to the control device 900, and the control device 900 controls the reminder device 902 to send a reminder message, such as a beep, to remind the user to put the kettle 200 in place.

[0107] 7) When the kettle 200 is full of water and is moved out but not completely moved out from under the device cover 300, the first magnetoresistor 351 cannot sense the magnetic force at first, while the second magnetoresistor 352 can still sense the magnetic force. The signal processing circuit board 307 receives the signal "no signal from the first magnetoresistor 351, signal from the second magnetoresistor 352" output from the water level monitoring circuit board 305, and the corresponding kettle status information is "the kettle 200 is full of water, but not completely moved out". The signal processing circuit board 307 does not send a signal to the control device 900, and the electric switch device 901 remains closed. Similarly, the signal processing circuit board 307 can also send the status signal to the control device 900, and the control device 900 controls the reminder device 902 to send a reminder message, such as a beep, to remind the user to put the kettle 200 in place or move it out completely.

[0108] In the description of this embodiment, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", and "bottom" indicate positions or positional relationships based on the attached Figure 2 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0109] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0110] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A refrigerator, characterized in that: include: An inner liner, wherein a mounting opening is provided on the inner surface of the inner liner; An embedded box, the embedded box is configured to be fixed to the inner tank at the installation opening; the external water pipe is fixed to the embedded box; A water storage device, the water storage device comprising: A kettle, comprising a kettle body and a cover body, wherein the kettle body is used to store water, and the cover body is used to open and close the kettle body; A float seat is fixed to the kettle body or the cover body, and a water inlet is provided on the float seat for water in the kettle body to flow in and out; and A float is movably arranged in the float seat up and down; A device cover, the kettle is detachably arranged below the device cover; the device cover includes a fixing portion; wherein the fixing portion is configured to be adapted to the embedded box to achieve fixing of the device cover on the inner side of the inner tank; The device cover defines a receiving cavity, and a water inlet pipe is arranged in the receiving cavity, the outlet end of the water inlet pipe extends into the kettle, and the inlet end is connected to the external water pipe so as to introduce water into the kettle; The float comprises: a float body, a float cover and a magnetic member, wherein The float cover is arranged above the float body and defines a cavity between the float body and the float body, and the magnetic member is arranged in the float cover; The refrigerator further comprises: A water level monitoring circuit board is arranged in the accommodating cavity, and a first magnetoresistor and a second magnetoresistor are arranged on the water level monitoring circuit board, wherein the first magnetoresistor and the second magnetoresistor are at different upper and lower positions and front and back positions on the water level monitoring circuit board; An electric switch device, used for opening and closing the waterway of the water inlet pipe; and A control device connected to the water level monitoring circuit board and the electric switch device, and used to control the electric switch device to inject or not inject water into the kettle based on the signal of the interaction between the first magnetoresistor, the second magnetoresistor and the magnetic member; When the first magnetoresistor has a signal and the second magnetoresistor has no signal, the electric switch device is turned on to fill water into the kettle; When the first magnetoresistor sends a signal first and the second magnetoresistor sends a signal later, the electric switch device is turned off to stop filling water into the kettle.

2. The refrigerator according to claim 1, characterized in that: The float seat is fixed to the cover body.

3. The refrigerator according to claim 2, characterized in that: The cover body is provided with a plurality of fixing pins extending downwardly from its lower surface; A plurality of seat fixing holes are formed on the float seat at positions corresponding to the plurality of fixing pins; After the fixing pin is inserted into the seat fixing hole, it is softened by heat to form a cap-type structure to achieve the fixing of the float seat and the cover body.

4. The refrigerator according to claim 1, characterized in that: The float cover and the float body are connected by hot melt; and / or The magnetic component is cast and fixed in the float cover.

5. The refrigerator according to claim 1, characterized in that: The float seat comprises a bottom wall and a side wall, the water outlet is arranged on the bottom wall and / or the side wall, and a plurality of limiting edges are formed at intervals on the inner side surface of the side wall; The float body is sandwiched between the plurality of limiting edges.

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