CN112823724B

CN112823724B - Cold tank and water dispenser

Info

Publication number: CN112823724B
Application number: CN201911145519.8A
Authority: CN
Inventors: 耿纪伟; 高勇; 黄绵春; 陆达宏
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2022-06-24
Anticipated expiration: 2039-11-20
Also published as: CN112823724A; WO2021098000A1

Abstract

The invention discloses a cold tank and a water dispenser, wherein the cold tank is used for the water dispenser, a water inlet is formed in the upper end of the cold tank, a premixing disc is arranged below the water inlet in the cold tank, and a plurality of water through holes are dispersedly distributed in the disc bottom of the premixing disc. The technical scheme of the invention can solve the problem of rapid climbing of the water temperature at the water outlet of the cold tank, thereby avoiding sudden temperature and sudden cold of the water taking temperature and avoiding frequent false start-stop of the refrigeration compressor.

Description

Cold tank and water dispenser

Technical Field

The invention relates to the technical field of drinking equipment, in particular to a cooling tank and a water dispenser.

Background

In the water dispenser, the cold tank is used for storing low-temperature cold water generated by refrigeration of the evaporator, and water in the water bucket can be supplemented into the cold tank at a higher initial speed under the action of gravity or the pumping action of the water pump in the water taking process, so that the cold water taking process can be continued. Referring to fig. 1, it is found that, for a common cold tank 1 ', when the inlet flow of the inlet pipe 3 ' is large (for example, greater than or equal to 1.8L/min), the inlet flow speed is too high, and after entering the cold tank 1 ', the high-speed water flows preferentially along the nearest route from the inlet of the cold tank 1 ' to the outlet of the cold tank 1 ', and local low-temperature vortexes are formed on two sides of the route. Therefore, when a user takes water, even if cold water with a lower temperature is taken at the beginning, water flowing to the water outlet of the cooling tank 1 ' along the ' nearest route ' can lead the water temperature at the water outlet of the cooling tank 1 ' to quickly climb, so that the water outlet is quickly changed into water close to the normal temperature, and after the water taking is stopped for a while, cold energy of ' low-temperature vortex ' is transferred in the cooling tank 1 ', the cold water with the lower temperature can be taken again, so that the water taking temperature is suddenly cooled and unstable; in addition, because the temperature probe for controlling the starting of the compressor of the water dispenser is usually arranged close to the water outlet of the cold tank 1 ', the water temperature at the water outlet of the cold tank 1 ' quickly climbs, and the false starting of the refrigeration compressor of the water dispenser can be caused, but the water dispenser can not work for a long time, and the compressor can stop after the water temperature in the cold tank 1 ' is uniformly reduced.

Disclosure of Invention

The invention mainly aims to provide a cold tank, which aims to solve the problem that the water temperature at a water outlet of the cold tank quickly climbs, so that the temperature of water is prevented from suddenly rising and suddenly cooling, and the frequent and mistaken starting and stopping of a refrigeration compressor are prevented.

In order to achieve the purpose, the cold tank provided by the invention is used for a water dispenser, the upper end of the cold tank is provided with a water inlet, a premixing disc is arranged in the cold tank and positioned below the water inlet, and a plurality of water through holes are dispersedly distributed at the disc bottom of the premixing disc.

Optionally, the plurality of water through holes are uniformly distributed on the bottom of the premixing disc.

Optionally, the water through hole is arranged in a small-top and large-bottom manner.

Optionally, the cold jar still is equipped with and is located the air brake and the honeycomb duct of premixing dish top, the honeycomb duct has into water end and goes out the water end, the end of intaking with the water inlet intercommunication, it locates to go out water end neighbour the downside of air brake, and with the downside interval of air brake goes out the injection slit.

Optionally, the cold tank comprises a tank body and a tank cover covering the upper end of the tank body, and the speed reduction plate is a cover plate of the tank cover.

Optionally, the water inlet is arranged on the tank cover, and the disc edge of the premixing disc is fixed with the cover edge of the tank cover.

Optionally, a water diversion structure is arranged at a position of the water outlet end and/or the speed reduction plate opposite to the water outlet end, and a plurality of water diversion grooves distributed along the circumferential direction are formed in the water diversion structure.

Optionally, the water diversion structure comprises a plurality of water diversion ribs protruding on the lower side surface of the speed reduction plate, and the plurality of water diversion ribs intersect on the same axis to limit one water diversion groove between any two adjacent water diversion ribs.

Optionally, the water diversion structure extends partially into the water outlet end.

The invention also provides a water dispenser which comprises a water inlet pipe and the cold tank, wherein the water inlet pipe is communicated with the water inlet of the cold tank.

According to the technical scheme, the premixing disc is additionally arranged at the upper end of the cold tank, so that normal-temperature water entering from the water inlet of the cold tank firstly falls into the premixing disc, is fully premixed with cold water in the premixing disc and then is pushed downwards in a layered manner through the plurality of water through holes dispersedly distributed on the bottom of the premixing disc, and thus, the inflow water can be prevented from flowing to the water outlet of the cold tank along the 'nearest route', the water temperature of the water outlet of the cold tank is prevented from rapidly climbing, low-temperature cold water at the bottom of the cold tank can firstly flow out from the water outlet of the cold tank, the water outlet temperature is gradually increased, and the problems that the cold water temperature is increased too fast and the amount of cold water taken at one time is small during water taking are solved; meanwhile, low-temperature vortexes positioned on two sides of the nearest route cannot be formed, when cold water is completely taken, the water temperature in the whole cold tank is higher, the phenomenon of sudden cooling and sudden temperature cannot occur, and the phenomenon that the refrigeration compressor is frequently started and stopped by mistake can be prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art cold tank;

FIG. 2 is a schematic structural diagram of an embodiment of the cold tank of the present invention;

figure 3 is a bottom view of a can lid of the cold can of figure 2.

Description of the background art reference numerals:

reference numerals	Name (R)	Reference numerals	Name (R)
				1’	Cold pot	3’	Water inlet pipe

Detailed description of the embodiments reference is made to the accompanying drawings in which:

reference numerals	Name(s)	Reference numerals	Name (R)
				1	Cold tank	10	Speed reduction plate
101	Water diversion structure	102	Water diversion rib
				11	Can lid	111	External joint
112	Inner joint	12	Tank body
				13	Water inlet	2	Flow guide pipe
3	Water inlet pipe	4	Premixing disc
				41	Water through hole

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a cold tank.

Referring to fig. 2 and 3, in an embodiment of the present invention, the cold tank 1 is used for a water dispenser, the upper end of the cold tank 1 is provided with a water inlet 13, a pre-mixing disc 4 is arranged in the cold tank 1 below the water inlet 13, and a plurality of water through holes 41 are dispersedly arranged at the bottom of the pre-mixing disc 4.

Without loss of generality, the water inlet 13 of the cold tank 1 is externally connected with a water inlet pipe 3 for introducing normal temperature water. Optionally, the water inlet 13 of the cold tank 1 is provided with an external joint 111, and the water inlet pipe 3 is sleeved on the external joint 111, so that the water inlet pipe 3 can be conveniently communicated with the water inlet 13.

According to the technical scheme, the premixing disc 4 is additionally arranged at the upper end of the cold tank 1, so that normal-temperature water entering from the water inlet 13 of the cold tank 1 firstly falls into the premixing disc 4, is fully premixed with cold water in the premixing disc 4 and then is pushed downwards in a layered manner through the plurality of water through holes 41 dispersedly distributed in the bottom of the premixing disc 4, and therefore, the inflow water can be prevented from flowing to the water outlet of the cold tank 1 along the 'nearest route', the water temperature of the water outlet of the cold tank 1 is prevented from rapidly climbing, low-temperature cold water at the bottom of the cold tank 1 can firstly flow out from the water outlet of the cold tank 1, the water outlet temperature is gradually increased, and the problems that the cold water temperature is increased too fast and the quantity of cold water taken at one time is small during water taking are solved; meanwhile, low-temperature vortexes positioned on two sides of the nearest route cannot be formed, when cold water is taken out completely, the water temperature in the whole cold tank 1 is high, the phenomenon of sudden cooling and sudden temperature cannot occur, and the phenomenon that the refrigeration compressor is started and stopped frequently by mistake can be prevented.

Further, the plurality of water through holes 41 are a plurality of small holes uniformly distributed at the bottom of the pre-mixing disc 4, so that the pre-mixed water can uniformly flow downwards from the pre-mixing disc 4, and a good laminar downward propulsion effect is realized. Alternatively, the plurality of water passage holes 41 are distributed in an array at the bottom of the pre-mixing disk 4, which may be, but is not limited to, an annular array, a rectangular array, etc. Of course, in other embodiments, the distribution of the plurality of water passage holes 41 on the disk bottom of the pre-mixing disk 4 may be slightly uneven as long as the laminar downward propelling effect is substantially achieved.

Further, the water through holes 41 are arranged to be small at the top and large at the bottom, so that the water premixed in the pre-mixing disk 4 can further diffuse through the water through holes 41 and enter the space below the pre-mixing disk 4, so as to realize downward mixing in a layered manner.

Further, the cold tank 1 is also provided with a speed reduction plate 10 and a draft tube 2 which are positioned above the premixing disc 4. Honeycomb duct 2 has into water end and goes out the water end, wherein, honeycomb duct 2 the end of intaking with water inlet 13 intercommunication, honeycomb duct 2's play water end neighbour locates the downside of air brake 10, and separates out the injection slit with the downside of air brake 10. In the technical scheme, the normal-temperature water entering the cold tank 1 can be sprayed out in a water film manner to the periphery through the spray slits by the arrangement of the draft tube 2 and the speed reducing plate 10, so that on one hand, the sprayed water film can be horizontally thrown to the periphery, the cold water in the premixing disc 4 can be prevented from being directly impacted by the inlet water, and therefore the situation that the water outlet of part of the water through holes 41 at the bottom of the premixing disc 4 is faster and the water outlet of the other part of the water through holes 41 is slower is avoided; on the other hand, the sprayed water film at least partially rubs against the speed reduction plate 10 to reduce the speed, so that the kinetic energy of the inlet water is consumed by friction and falls into the pre-mixing disc 4, the speed of the inlet water falling into the pre-mixing disc 4 can be reduced, and the impact of the inlet water on the cold water in the pre-mixing disc 4 is further weakened.

In the present invention, in order to make the water flowing out from the water outlet end of the draft tube 2 be sprayed out from the spray slit, form a deceleration water film attached to the deceleration plate 10, and freely fall to the upper end of the cold water in the cold tank 1 after decelerating to zero speed, so as to eliminate the impact of the initial water inlet speed on the cold water in the pre-mixing disc 4, the width of the spray slit should not be too large under the condition of a fixed water inlet flow rate and the pipe diameter (perimeter) of the water outlet end of the draft tube 2. In an alternative embodiment, when the water inlet flow of the cold tank 1 is 1.85L/min and the perimeter of the water outlet end of the draft tube 2 is 25.4mm, the width of the injection slit is 1.5mm, and at this time, the inlet water can be ejected from the injection slit and form a deceleration water film attached to the deceleration plate 10.

Without loss of generality, in the present embodiment, the cold tank 1 includes a tank body 12 and a tank cover 11 covering the upper end of the tank body 12. Further, the speed reduction plate 10 is a cover plate of the can lid 11, so that the structure of the cold tank 1 is simpler. However, the design is not limited thereto, and in other embodiments, the speed reduction plate 10 may be an additional component and is located below the cover plate of the tank cover 11.

Furthermore, the water outlet end of the flow guide pipe 2 is adjacently arranged at the central position of the cover plate of the tank cover 11, so that the water film sprayed out of the spray slit can have a longer flat throwing route in each direction of the water outlet end of the flow guide pipe 2; in particular, when the sprayed water film is adhered to the lower side surface of the cover plate of the can lid 11, the water film portions in all directions can be sufficiently decelerated and then freely fall to the upper end of the cold water in the cold tank 1.

Further, the water inlet 13 of the cold tank 1 is arranged on the tank cover 11, and the rim of the premixing disc 4 is fixed with the cover rim of the tank cover 11. Without loss of generality, the pre-mix disk 4 and the tank cover 11 may be fixed by, but not limited to, a threaded connection or a snap-fit connection. In this embodiment, the pre-mixing disk 4 and the tank cover 1 are fixedly connected into a module, so that when the tank cover 11 is fixed to the tank body 12, the pre-mixing disk 4 can be installed at the same time, the assembly of the product is more convenient, and the efficiency is higher.

Further, the water inlet 13 is provided in the cover plate of the tank cover 11. However, the design is not limited thereto, and in other embodiments, the water inlet 13 may be disposed at the rim of the tank cover 11. Of course, in this embodiment, the water inlet 13 is disposed on the cover plate of the tank cover 11, so that the cold tank 1 can obtain a higher water level. Optionally, the cover plate of the tank cover 11 is provided with an inner joint 112 at the water inlet 13, and the water inlet end of the flow guide pipe 2 is sleeved on the inner joint 112, so that the communication between the water inlet end of the flow guide pipe 2 and the water inlet 13 can be conveniently realized.

Furthermore, the guide pipe 2 is a U-shaped pipe, so that the guide pipe 2 is simple in structure and can well guide the inflow water to the lower side surface of the speed reducing plate 10; however, the design is not limited thereto, and in other embodiments, the draft tube 2 may be configured in other shapes, such as but not limited to a spiral shape, as long as the inlet water can be guided to the lower side surface of the speed reduction plate 10.

Further, the lower side surface of the speed reduction plate 10 is provided with a rough surface which is fully distributed with protrusions and/or pits, so that the speed reduction effect of the lower side surface of the speed reduction plate 10 on the water film can be enhanced, and the water film is prevented from still having higher impact speed when impacting the edge of the speed reduction plate 10. Alternatively, when the speed reduction plate 10 is a metal plate (typically, a stainless steel plate), the lower side surface of the metal plate may be treated by pickling to make the lower side surface rough. In addition, alternatively, when the speed reduction plate 10 is a plastic plate, the speed reduction plate 10 with the rough surface on the lower side can be directly injection-molded through an injection mold which is fully distributed with protrusions and/or pits. However, the design is not limited thereto, and in other embodiments, a material with viscous damping property, such as but not limited to a food-grade silicon membrane, may be attached to the lower side of the speed reduction plate 10 to increase the friction force of the lower side of the speed reduction plate 10 facing the water membrane, thereby enhancing the speed reduction effect.

In the present invention, when the speed of the water film ejected from the ejection slit and the diameter of the speed reduction plate 10 are determined, the lower side surface of the speed reduction plate 10 with a suitable speed reduction effect can be selected so that the radius of the final water film is greater than or equal to half of the radius of the speed reduction plate 10 and the distance between the edge of the final water film and the edge of the speed reduction plate 10 is 10mm to 15mm, so that the water intake can obtain a long speed reduction stroke after being ejected, thereby sufficiently consuming the kinetic energy thereof and avoiding the water intake from directly impacting the side wall (usually the cover edge of the can cover 11) of the cold-storage can 1 after being ejected.

Furthermore, a water diversion structure 101 is arranged at the position of the speed reducing plate 10 opposite to the water outlet end of the draft tube 2, and a plurality of water diversion grooves distributed along the circumferential direction are formed in the water diversion structure 101. It can be understood that the plurality of water diversion grooves are respectively oriented to different directions so as to guide the water dispersed from the spray slit to different directions through the plurality of water diversion grooves, thereby making the water film in each direction more uniform.

In this embodiment, the water diversion structure 101 is provided only on the speed reduction plate 10. However, the design is not limited thereto, and in other embodiments, the water diversion structure 101 may be disposed only in the water outlet end of the flow guide tube 2. In other embodiments, the water diversion structure 101 may be disposed on the speed reduction plate 10, and the water diversion structure 101 may be disposed at the water outlet end of the draft tube 2.

In this embodiment, further, the water diversion structure 101 includes a plurality of water diversion ribs 102 protruding from the lower side surface of the speed reduction plate 10, and the plurality of water diversion ribs 102 intersect with each other on the same axis to define a water diversion trench between any two adjacent water diversion ribs 102; therefore, the formed water diversion groove has a deeper water diversion stroke, thereby having a better water diversion effect. However, the design is not limited thereto, and in other embodiments, the diversion grooves facing different directions may be directly dug on the lower side surface of the speed reduction plate 10. In this embodiment, generally, four diversion ribs 102 are provided to form diversion grooves facing four different directions, so as to guide the water dispersed from the spray slit to four different directions; of course, in other embodiments, three diversion ribs 102 may be provided to form diversion trenches facing three different directions. In this embodiment, optionally, the plurality of water diversion ribs 102 and the speed reduction plate 10 are integrally formed, so as to improve the production efficiency of the product.

Furthermore, the water diversion structure 101 partially extends into the water outlet end of the flow guide pipe 2, so that the function of dispersing and guiding the discharged water can be better realized.

The invention also provides a water dispenser, which comprises a water inlet pipe and a cold tank, wherein the specific structure of the cold tank refers to the embodiments, and the water dispenser adopts all the technical schemes of all the embodiments, so that the water dispenser at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted. Wherein, the water inlet pipe is communicated with the water inlet of the cold tank.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A cold tank is used for a water dispenser and is characterized in that a water inlet is formed in the upper end of the cold tank, a premixing disc is arranged in the cold tank and located below the water inlet, a plurality of water through holes are distributed in the bottom of the premixing disc in a dispersed mode, and the water through holes are arranged in a small-sized mode;

the cold tank comprises a tank body and a tank cover arranged at the upper end of the tank body in a covering mode, the water inlet is formed in the tank cover, and the disc edge of the premixing disc is fixed with the cover edge of the tank cover.

2. A cold tank as claimed in claim 1, wherein said plurality of water holes are uniformly distributed on the bottom of said pre-mix pan.

3. A cold tank as claimed in claim 1, wherein said cold tank further comprises a velocity reduction plate and a flow guide tube above said pre-mixing disk, said flow guide tube having a water inlet end and a water outlet end, said water inlet end communicating with said water inlet, said water outlet end being disposed adjacent to the lower side of said velocity reduction plate and spaced from the lower side of said velocity reduction plate by a spray slit.

4. A cold tank according to claim 3, wherein said speed reduction plate is a cover plate of said tank cover.

5. A cold tank according to claim 3 or 4, wherein a water diversion structure is arranged at the position of the water outlet end and/or the speed reduction plate opposite to the water outlet end, and a plurality of water diversion grooves distributed along the circumferential direction are formed in the water diversion structure.

6. The cold tank of claim 5, wherein said water diversion structure comprises a plurality of water diversion ribs protruding from the lower side of said speed reduction plate, and said plurality of water diversion ribs intersect on the same axis to define said water diversion trench between any two adjacent water diversion ribs.

7. A cold vessel according to claim 6, wherein said water diverting structure extends partially into said water outlet end.

8. A water dispenser, characterized in that, comprises a water inlet pipe and a cold tank as claimed in any one of claims 1 to 7, the water inlet pipe is communicated with the water inlet of the cold tank.