Water tank intake and exhaust filtering device and water purifier comprising same

Abstract

The utility model provides a water tank intake and exhaust filtering device and a water purifier including the same, the water tank intake and exhaust filtering device is communicated with a water tank air port, the water tank intake and exhaust filtering device comprises a first flow channel and a second flow channel, the first flow channel is used for exhausting air to the outside of the water tank, the second flow channel is used for feeding air into the water tank, and the first flow channel is communicated with the water tank air port. A filter cotton piece is arranged in the second flow channel; the refrigeration unit is arranged in the first flow channel, and the refrigeration unit is used for condensing water in the air flowing out of the water tank; the heating unit is arranged on the outer surface of the water tank air inlet and outlet filtering device, and the heating unit is used for heating air entering the second flow channel. Air in the flow channels with different flow directions is dried, the refrigeration unit condenses and separates water in humid air discharged from the water tank, and the heating unit reduces bacterium breeding on the filter cotton piece in an air heating mode.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a water tank inlet and outlet filtration device and a water purifier containing the same. Background Technology

[0002] Currently, water purification products filter impurities from tap water using filter cartridges to obtain purified water. Limited by booster pumps and filter membranes, the water flow rate is generally not very high. Most mainstream water purifiers have a flow rate of less than 2L / min. To provide users with a better water experience, some water purification products incorporate a water tank. The purified water is stored in the tank, and a high-flow-rate pump delivers it, achieving a high-flow-rate output.

[0003] Water tanks typically include an air vent that connects to the outside. During water intake and output, the internal air communicates with the outside, ensuring smooth water flow. However, when the air vent connects to the outside, dust, bacteria, and other contaminants from the outside air can enter the water tank, contaminating the water inside. This is especially true for under-sink water purifiers, where the harsh under-sink environment can lead to bacterial growth in the water tank, or odors from the air under the sink can enter the tank, resulting in unpleasant smells in the output water.

[0004] In existing technologies, filters, such as PP cotton, are typically installed on the air vent. However, these filters can only block some impurities from the external environment and cannot dry the humid air inside the water tank. Under prolonged use, the humid air inside the water tank can cause bacteria to grow on the cotton pads themselves, which can then adhere to the air, enter the water tank, and contaminate the water. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defect that bacteria easily grow and contaminate the water in the water tank at the air vent of the water tank in the prior art, and to provide a water tank air inlet and outlet filtration device and a water purifier containing the same.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] A water tank inlet and outlet filtration device, wherein the water tank inlet and outlet filtration device is connected to the air inlet of the water tank, and the water tank inlet and outlet filtration device includes:

[0008] The first flow channel and the second flow channel are provided, wherein the first flow channel is used to exhaust air to the outside of the water tank, and the second flow channel is used to intake air into the water tank, and a filter cotton sheet is provided in the second flow channel.

[0009] A refrigeration unit is disposed within the first flow channel and is used to condense water in the air flowing out of the water tank.

[0010] A heating unit is disposed on the outer surface of the water tank inlet and outlet filtration device, and the heating unit is used to heat the air entering the second flow channel.

[0011] In this solution, a first and second unidirectional flow channel are set up to dry the air in the channels with different flow directions. First, a refrigeration unit is set up in the first exhaust channel to condense and separate the water in the humid air discharged from the water tank. Second, a heating unit is set up on the outer periphery of the second intake channel. The heating unit can heat the air in the water tank and the small space where the water tank intake and exhaust filter devices are located. By heating the air, the dry air flows into the second channel, making the air entering the water tank through the second channel drier, reducing the growth of bacteria on the filter cotton, and preventing the water flowing out of the water tank from having odors and other problems.

[0012] Preferably, the first flow channel is provided with a first port, the second flow channel is provided with a second port, and a one-way flow component is provided in both the first port and the second port. The refrigeration unit is located between the first port and the outlet of the water tank inlet and outlet filtration device. The water tank inlet and outlet filtration device is also provided with a drain port corresponding to the refrigeration unit, and the drain port is located below the refrigeration unit.

[0013] In this solution, the above settings enable unidirectional flow in the first and second flow channels. At the same time, a drain outlet is provided to promptly discharge the condensed water and prevent its accumulation from affecting the normal operation of the refrigeration unit.

[0014] Preferably, the filter pad is disposed between the second port and the inlet of the water tank air inlet / outlet filter device.

[0015] In this solution, the above settings are used to achieve effective filtration of the air entering the second flow channel.

[0016] Preferably, the unidirectional flow component includes a fixed plate and an elastic plate, the fixed plate having a circular hole, and one end of the elastic plate extending into the circular hole and engaging with the fixed plate.

[0017] In this solution, the above-mentioned settings are used to connect the fixed plate and the elastic plate by snap-fit, thus preventing the elastic plate from falling off.

[0018] Preferably, the edge of the fixing plate is provided with a plurality of through holes, and the elastic plate is disposed on the through holes.

[0019] In this solution, the above-mentioned arrangement allows airflow through the through-hole, while the elastic plate cover is placed on the through-hole to achieve one-way airflow.

[0020] Preferably, the size of the elastic plate is less than or equal to the size of the fixed plate.

[0021] In this solution, the above-mentioned arrangement is used to avoid structural interference between the elastic plate and the first or second port. At the same time, reducing the size of the elastic plate can correspondingly reduce the manufacturing cost of the unidirectional flow component.

[0022] Preferably, the water tank inlet and outlet filtration device further includes a housing, the first flow channel and the second flow channel are both located inside the housing, the outlet is disposed on the housing, and a filter cotton sheet is also disposed on the outlet.

[0023] In this solution, by setting up the above-mentioned filter cotton sheet at the outlet, impurities are prevented from entering the first flow channel through the outlet, thereby preventing impurities from entering the water tank.

[0024] Preferably, the refrigeration unit includes a condenser plate, and the condenser plate has a plurality of air holes corresponding to the first port.

[0025] In this solution, by setting the air vents corresponding to the first port, air can be directly discharged through the condenser plate without detouring, thus improving condensation efficiency and exhaust efficiency.

[0026] Preferably, the heating unit includes a heat sink disposed on the housing and extending from the surface of the housing in a direction away from the housing.

[0027] In this solution, the above-mentioned setup effectively heats and dries the air in the confined space of the water tank through the heat sink, keeping the air entering the second flow channel dry and reducing the growth of bacteria on the filter cotton.

[0028] A water purifier includes a water tank, and the water tank is provided with an air inlet and outlet filtration device as described above at the air vent of the water tank.

[0029] In this solution, the water purifier includes a water tank inlet and outlet filtration device, which keeps the air entering and exiting the water tank dry, reducing the possibility of bacteria growing on the filter cotton sheet due to water in the humid air and causing the water in the tank to have an odor.

[0030] The positive and progressive effects of this utility model are as follows: This utility model sets up a first flow channel and a second flow channel with unidirectional flow to dry the air in the flow channels with different flow directions. First, a refrigeration unit is set in the first flow channel of exhaust to condense and separate the water in the humid air discharged from the water tank. Second, a heating unit is set on the outer periphery of the second flow channel of intake. The heating unit can heat the air in the water tank and the small space where the water tank intake and exhaust filter device is located, so that the dry air flows into the second flow channel by heating the air, thereby making the air entering the water tank through the second flow channel drier, reducing the growth of bacteria on the filter cotton, and preventing the water flowing out of the water tank from having odors and other problems. Attached Figure Description

[0031] Figure 1 This is a perspective view of a water tank inlet and outlet filtration device according to a preferred embodiment of the present invention.

[0032] Figure 2 This is a diagram showing the positional relationship between the first flow channel and the second flow channel in a preferred embodiment of the present invention.

[0033] Figure 3 This is a perspective view of a unidirectional flow component according to a preferred embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] First Flow Channel 1

[0036] First port 11

[0037] Second flow channel 2

[0038] Second port 21

[0039] Filter pads 3

[0040] Refrigeration unit 4

[0041] Condenser 41

[0042] Pores 411

[0043] Heating unit 5

[0044] Heatsink 51

[0045] Unidirectional flow component 6

[0046] Fixing plate 61

[0047] 611 round hole

[0048] Limit block 612

[0049] Elastic plate 62

[0050] 621 clearance slot

[0051] Drain port 7

[0052] 8 casings

[0053] Temperature control module 9 Detailed Implementation

[0054] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0055] This embodiment provides a water tank inlet and outlet filtration device, the specific structure of which is as follows: Figure 1 , Figure 2 and Figure 3 As shown, the water tank inlet and outlet filtration device is connected to the water tank vent, and the water tank inlet and outlet filtration device includes:

[0056] The first flow channel 1 and the second flow channel 2 are provided, wherein the first flow channel 1 is used to exhaust air to the outside of the water tank, the second flow channel 2 is used to intake air into the water tank, and a filter cotton sheet 3 is provided in the second flow channel 2.

[0057] Refrigeration unit 4 is disposed in the first flow channel 1 and is used to condense water in the air flowing out of the water tank;

[0058] Heating unit 5 is located on the outer surface of the water tank inlet and outlet filter device. Heating unit 5 is used to heat the air entering the second flow channel 2.

[0059] Specifically, the first flow channel 1 is connected to the air inlet and is used for unidirectional discharge of air from the water tank. The second flow channel 2 is connected to the air inlet and is arranged parallel to the first flow channel 1. The second flow channel 2 is used for unidirectional air intake into the water tank to ensure that the internal and external pressures of the water tank are consistent, and that the water intake and exhaust are smooth. A filter cotton sheet 3 is installed in the second flow channel 2 to filter impurities in the air entering the water tank. The filter cotton sheet 3 is PP cotton as used in the prior art. The refrigeration unit 4 is located in the unidirectional exhaust first flow channel 1. When the humid air in the water tank flows out and into the narrow space where the water tank and the water tank inlet and exhaust filter are located, the refrigeration unit 4 condenses the humid air to separate the water in the humid air discharged from the water tank, so that the air discharged into the water tank and the narrow space where the water tank inlet and exhaust filter are located is dry air, that is, the air in the first flow channel 1 is dried.

[0060] Similarly, the heating unit 5 is located in the confined space of the water tank and the water tank inlet and outlet filtration device, and is situated on the outer surface of the water tank inlet and outlet filtration device. This heats and dries the air in the confined space of the water tank and the water tank inlet and outlet filtration device, so that when the air enters the second flow channel 2 and passes through the filter cotton sheet 3, the dried air reduces the growth of bacteria on the filter cotton sheet 3. With the reduction of bacterial growth, the air is less likely to produce odors, thus making it less likely for the air flowing into the second flow channel 2 and entering the water tank to produce odors, avoiding affecting the taste of the water in the water tank and preventing problems such as odors in the water flowing out of the water tank.

[0061] It is understood that the heating unit 5 and the cooling unit 4 are modules used for heating and cooling in the prior art, such as semiconductor heating or cooling plates. This is prior art and will not be described in detail here.

[0062] In this embodiment, the first flow channel 1 is provided with a first port 11, the second flow channel 2 is provided with a second port 21, and a one-way flow component 6 is provided in both the first port 11 and the second port 21. The refrigeration unit 4 is located between the first port 11 and the outlet of the water tank inlet and outlet filter device. The water tank inlet and outlet filter device is also provided with a drain port 7 corresponding to the refrigeration unit 4. The drain port 7 is located below the refrigeration unit 4.

[0063] Specifically, the first port 11 is located within the first flow channel 1, opposite to the outlet of the water tank inlet / outlet filtration device. The refrigeration unit 4 is located between the first port 11 and the outlet of the water tank inlet / outlet filtration device. The drain port 7 is connected to the first flow channel 1 and located below the refrigeration unit 4. The drain port 7 is integrally formed with the water tank inlet / outlet filtration device to reduce installation steps. The drain port 7 is connected to the sewer or outside the water purifier to promptly discharge condensed water and prevent accumulation that could affect the normal operation of the refrigeration unit 4. The second port 21 is located within the second flow channel 2, opposite to the inlet of the water tank inlet / outlet filtration device. Both the first port 11 and the second port 21 are equipped with a one-way flow component 6. The one-way flow component 6 is a one-way opening and closing structure in the prior art, which automatically opens when air is discharged or entered, realizing one-way flow between the first flow channel 1 and the second flow channel 2. This is prior art and will not be described in detail here.

[0064] In this embodiment, the filter cotton sheet 3 is disposed between the second port 21 and the inlet of the water tank air inlet and outlet filter device.

[0065] Specifically, the inlet of the water tank's air intake and exhaust filter is located on one side of the filter and is provided in multiple ways. Filter cotton sheets 3 are positioned between the inlet and the second port 21 to filter the air entering the second port 21 and remove impurities. Furthermore, the one-way flow component 6 provided in the second port 21 ensures that air can only flow in in one direction, thereby preventing humid air in the water tank from flowing back and adhering to the filter cotton sheets 3. This prevents bacterial growth and ensures that the air entering the water tank through the second port 21 after bacterial growth will not have an odor.

[0066] Furthermore, in this embodiment, the one-way flow component 6 includes a fixed plate 61 and an elastic plate 62. The fixed plate 61 has a circular hole 611, and one end of the elastic plate 62 extends into the circular hole 611 and is engaged with the fixed plate 61.

[0067] like Figure 2 and Figure 3 As shown, the first port 11 and the second port 21 are circular ports. Both the fixing plate 61 and the elastic plate 62 are disc structures. The fixing plate 61 has the same size as the first port 11 and the second port 21 and is welded to the first port 11 and the second port 21. Of course, in other embodiments, they can also be connected by adhesive, which will not be elaborated on here. A circular hole 611 is provided at the axis of the fixing plate 61. The elastic plate 62 has a protrusion corresponding to the circular hole 611. The end of the protrusion away from the elastic plate 62 is larger than the diameter of the protrusion and also larger than the diameter of the circular hole 611. This is so that when the elastic plate 62 and the fixing plate 61 are engaged, the two are locked together by the protrusion to prevent the elastic plate 62 from falling off.

[0068] In this embodiment, the edge of the fixing plate 61 is provided with multiple through holes, and the elastic plate 62 covers the through holes.

[0069] Specifically, a through hole penetrates the fixed plate 61 to allow airflow, while an elastic plate 62 covers the through hole to achieve unidirectional airflow. The fixed plate 61 is also provided with limiting blocks 612, which extend towards the elastic plate 62 and are spaced apart. The elastic plate 62 is provided with a clearance groove 621 corresponding to the limiting block 612, so that the limiting block 612 and the clearance groove 621 cooperate to prevent the elastic plate 62 from rotating, thereby ensuring that the elastic plate 62 always covers the through hole of the fixed plate 61.

[0070] In this embodiment, the size of the elastic plate 62 is less than or equal to the size of the fixed plate 61.

[0071] Specifically, by setting the size of the elastic plate 62 to be less than or equal to the size of the fixed plate 61, structural interference between the elastic plate 62 and the first port 11 or the second port 21 can be avoided. At the same time, reducing the size of the elastic plate 62 can correspondingly reduce the manufacturing cost of the unidirectional flow component 6.

[0072] In this embodiment, the water tank inlet and outlet filtration device also includes a housing 8, the first flow channel 1 and the second flow channel 2 are both located inside the housing 8, the outlet is located on the housing 8, and a filter cotton sheet 3 is also provided on the outlet.

[0073] Specifically, the housing 8 has an internal space, within which the first flow channel 1 and the second flow channel 2 are located. The heating unit 5 is disposed on the outer surface of the housing 8, the cooling unit 4 is disposed inside the housing 8, and the drain port 7 is disposed on the housing 8 and below the cooling unit 4. An inlet and a filter cotton sheet 3 are disposed on the side of the housing 8 corresponding to the second flow channel 2. Simultaneously, an outlet and a filter cotton sheet 3 are also disposed on the side of the housing 8 corresponding to the first flow channel 1. This arrangement of a filter cotton sheet 3 at the outlet prevents impurities from entering the first flow channel 1 through the outlet, thereby preventing impurities from entering the water tank.

[0074] In this embodiment, the refrigeration unit 4 includes a condenser plate 41, and the condenser plate 41 is provided with a plurality of air holes 411 corresponding to the first port 11.

[0075] Specifically, the condenser plate 41 is a plate connected to the housing 8, and multiple condenser plates 41 are spaced apart. A temperature control module 9 is electrically connected to the housing 8 corresponding to the condenser plate 41. The temperature control module 9 is used to transfer low temperature to the condenser plate 41 to achieve the condensation function of water in the air. The temperature control module 9 is an existing electronic heating and cooling module used for temperature regulation, which will not be described in detail here. Multiple air holes 411 are provided on the condenser plate 41 corresponding to the first port 11. These air holes 411 penetrate the condenser plate 41, allowing the condensed and dried air to flow directly into the outlet through the air holes 411 without having to detour to the bottom or side of the condenser plate 41, thus improving condensation and exhaust efficiency.

[0076] In this embodiment, the heating unit 5 includes a heat sink 51, which is disposed on the housing 8 and extends from the surface of the housing 8 in a direction away from the housing 8.

[0077] Specifically, the heat sink 51 extends towards the narrow space containing the water tank and the water tank's inlet and outlet air filter device to contact the air within the narrow space. Multiple heat sinks 51 are also spaced apart and electrically connected to the temperature control module 9. The temperature control module 9 is used to transfer high temperature to the heat sink 51 to heat and dry the air within the narrow space, keeping the air entering the second flow channel 2 dry and reducing the possibility of bacterial growth on the filter cotton sheet 3. It is understood that both the condenser fin 41 and the heat sink 51 are existing structures used for condensation and heat dissipation, and will not be described in detail here.

[0078] This embodiment also provides a water purifier, which includes a water tank and the aforementioned water tank inlet and outlet filtration device is provided at the air vent of the water tank.

[0079] Specifically, the water purifier includes a water tank inlet and outlet filtration device. By setting up a first flow channel 1 and a second flow channel 2 with unidirectional flow, the air in the flow channels with different flow directions is dried. First, a cooling unit 4 is set in the first outlet flow channel 1 to condense and separate the water in the humid air discharged from the water tank. Second, a heating unit 5 is set on the outer periphery of the second inlet flow channel 2. The heating unit 5 can heat the water tank and the air in the small space where the water tank inlet and outlet filtration device is located, so that the dried air flows into the second flow channel 2 by heating the air, thereby making the air entering the water tank through the second flow channel 2 drier, reducing the growth of bacteria on the filter cotton sheet 3, and preventing the water flowing out of the water tank from having odors and other problems.

[0080] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A water tank intake and exhaust filtering device which communicates with a gas port of a water tank, characterized by, The water tank air inlet and outlet filter device comprises: a first flow channel and a second flow channel, wherein the first flow channel is used for air outlet of the water tank, and the second flow channel is used for air inlet of the water tank, and filter cotton is arranged in the second flow channel; a refrigeration unit arranged in the first flow channel, and used for condensing water in air flowing out of the water tank; a heating unit arranged on the outer surface of the water tank air inlet and outlet filter device, and used for heating air entering the second flow channel.

2. The water tank intake and exhaust filter apparatus as claimed in claim 1, wherein, The first flow channel is provided with a first port, and the second flow channel is provided with a second port, and a one-way flow component is arranged in the first port and the second port, the refrigeration unit is located between the first port and the outlet of the water tank air inlet and outlet filter device, and the water tank air inlet and outlet filter device is further provided with a liquid discharge port corresponding to the refrigeration unit, and the liquid discharge port is located below the refrigeration unit.

3. The water tank intake and exhaust filter apparatus of claim 2, wherein, The filter cotton is arranged between the second port and the inlet of the water tank air inlet and outlet filter device.

4. The water tank intake and exhaust filter apparatus of claim 2, wherein, The one-way flow component comprises a fixed plate and an elastic plate, a circular hole is formed in the fixed plate, and one end of the elastic plate extends into the circular hole and is clamped with the fixed plate.

5. The water tank intake and exhaust filter apparatus of claim 4, wherein, The edge of the fixed plate is provided with a plurality of through holes, and the elastic plate is arranged on the through holes.

6. The water tank intake and exhaust filter apparatus of claim 4, wherein, The size of the elastic plate is less than or equal to the size of the fixed plate.

7. The water tank intake and exhaust filter apparatus of claim 2, wherein, The water tank air inlet and outlet filter device further comprises a shell, the first flow channel and the second flow channel are located in the shell, the outlet is arranged on the shell, and filter cotton is further arranged on the outlet.

8. The water tank intake and exhaust filter apparatus of claim 2, wherein, The refrigeration unit comprises a condensation sheet, and the condensation sheet is provided with a plurality of air holes corresponding to the first port.

9. The water tank intake and exhaust filter apparatus of claim 7, wherein, The heating unit comprises a heat sink, and the heat sink is arranged on the shell and extends away from the shell from the surface of the shell.

10. A water purifier comprising a water tank, characterized by The air inlet of the water tank is provided with the water tank air inlet and outlet filter device as claimed in any one of claims 1-9.

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