Water inlet filter assembly of electric water heater and electric water heater

Abstract

The utility model discloses a water inlet filter assembly of electric water heater, include: casing and filter screen subassembly, the casing includes the water inlet portion, filter portion and water outlet portion that communicate in proper order, filter screen subassembly sets up in filter portion, and the inner wall of filter portion is provided with the inwardly convex receiving portion, the position of receiving portion is lower than water inlet portion, the top surface of filter portion still is provided with an opening, filter screen subassembly includes filter piece, filter piece can install on receiving portion and part filter piece stretches out to water outlet portion inside downward, the circumferential side of filter piece is provided with a plurality of filter holes, the filter piece is provided with the lifting handle spare on, the lifting handle spare is provided with the cover body that can be connected to filter portion through the opening on. The utility model discloses still discloses a kind of electric water heater. The utility model provides a kind of water inlet filter assembly of electric water heater, which is convenient to clean and replace. The utility model further provides a kind of electric water heater for water inlet filtration.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and in particular to an inlet filter assembly for an electric water heater and an electric water heater. Background Technology

[0002] As living standards improve, consumers' demands for bathing also increase. Simply offering fast and energy-efficient bathing is no longer sufficient. Health is a crucial indicator of public concern. Currently, most storage-type water heaters on the market operate by having tap water flow into the heater's inlet, heating it, mixing it with cold water, and then allowing it to flow out through the mixing valve. This process does not improve the quality of the tap water. Large particles of impurities such as sediment and rust accumulated in the tap water pipes over time can clog the filter, negatively impacting the bathing experience and the lifespan of the water heater, and potentially jeopardizing its longevity.

[0003] Meanwhile, in existing water heaters with filtration functions, after a period of use, large particles of impurities such as silt accumulate in the filter screen as the filtration device is used for an extended period. This reduces the filter's permeability and affects the water flow rate. Furthermore, it is inconvenient for users to disassemble and assemble the filter screen and other components during use, making it difficult to clean and replace these components in a timely and convenient manner. Utility Model Content

[0004] The purpose of this invention is to overcome the problems of the prior art and provide an inlet filter assembly for an electric water heater that is easy to clean and replace.

[0005] This utility model also provides an electric water heater that can achieve inlet water filtration and whose filter components are easy to clean and replace.

[0006] To achieve the above objectives, the present invention adopts the following solution:

[0007] A first aspect relates to an inlet water filtration assembly for an electric water heater, comprising: a housing and a filter assembly. The housing includes an inlet section, a filtration section, and an outlet section connected in sequence. The filter assembly is disposed within the filtration section. An inwardly protruding receiving portion is provided on the inner wall of the filtration section. The receiving portion is positioned lower than the inlet section. An opening is also provided on the top surface of the filtration section. The filter assembly includes a filter element. The filter element can be installed on the receiving portion, and a portion of the filter element extends downward into the outlet section. Multiple filter holes are provided on the periphery of the filter element. A handle is provided on the filter element. A cover is provided on the handle that can be connected to the filtration section through the opening. When the cover is connected to the filtration section, the cover can close the opening, and the filter element is securely positioned on the receiving portion.

[0008] The water inlet is provided with at least one horizontally arranged water inlet, and the water outlet has an inclined water outlet, so that the water inlet and the water outlet are misaligned to form a predetermined water path.

[0009] The housing includes a detachably connected upper housing and a lower housing, with the water inlet and filter located on the upper housing and the water outlet located on the lower housing.

[0010] The receiving part is a step provided on the inner wall of the upper shell, and a number of evenly distributed support ribs are provided between the bottom of the step and the inner wall of the upper shell.

[0011] The bottom surface of the lower shell is inclined, and the bottom surface gradually decreases in height from the side away from the water inlet towards the water outlet.

[0012] The filter element includes a filter cup, the upper end of which is provided with an outwardly protruding annular abutment edge, which can be supported and abutted by the receiving part, and a plurality of filter holes are evenly distributed on the body of the filter cup.

[0013] The filter cup has a first through hole in the middle for the handle to pass through. The handle is also threaded with a first locking member and a second locking member. When the first locking member and the second locking member are locked onto the handle, the bottom of the filter cup can be clamped and locked to the lower end of the handle.

[0014] The cover is provided with a second through hole through which the upper end of the handle can pass. The handle is also connected to a mounting head, which is threadedly connected to the portion of the handle that protrudes to the upper side of the cover.

[0015] The lower housing is provided with a drain pipe connected to the water outlet on the side near the water outlet and close to the bottom surface. The outlet of the drain pipe is connected to a detachable sealing cap.

[0016] A second aspect is an electric water heater, comprising: an electric water heater body, wherein an inlet filter assembly as described above is connected to the inlet port of the electric water heater, and the outlet is connected to and communicates with the inlet port.

[0017] Compared with existing technologies, this utility model has the following advantages: When in use, the filter assembly is installed onto the housing, and the filter element is securely fixed by the receiving part. At the same time, when the filter assembly is installed in place, the cover can apply pressure to the filter element through the handle, so that the filter element is securely installed. The densely distributed filter holes around the filter element can effectively intercept impurities in the incoming water. When cleaning or replacement is required, simply open the cover, and the entire filter assembly 2 can be easily taken out upwards through the opening via the handle, which improves the user experience and extends the service life of the filter assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the water inlet filter assembly of the electric water heater of this utility model;

[0019] Figure 2 This is a cross-sectional view of the water inlet filter assembly of the electric water heater of this utility model;

[0020] Figure 3 This is an exploded view of the filter screen assembly of the water inlet filter component of the electric water heater of this utility model;

[0021] Figure 4 This is one of the structural schematic diagrams of the upper shell of the water inlet filter assembly of the electric water heater of this utility model;

[0022] Figure 5 This is the second schematic diagram of the upper shell of the water inlet filter assembly of the electric water heater of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the electric water heater and water inlet filter assembly of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] like Figures 1 to 5 As shown, an inlet water filtration assembly for an electric water heater includes: a housing 1 and a filter assembly 2. The housing 1 includes an inlet section 11, a filter section 12, and an outlet section 13 connected in sequence. The filter assembly 2 is disposed within the filter section 12. An inwardly protruding receiving portion 14 is provided on the inner wall of the filter section 12. The receiving portion 14 is positioned lower than the inlet section 11. An opening 121 is also provided on the top surface of the filter section 12. The filter assembly 2 includes a filter element 21. The filter element 21 can be installed on the receiving part 14 and part of the filter element 21 extends downward into the water outlet part 13. The filter element 21 has a plurality of filter holes 211 on its periphery. The filter element 21 is provided with a handle 22. The handle 22 is provided with a cover 23 that can be connected to the filter part 12 through an opening 121. When the cover 23 is connected to the filter part 12, the cover 23 can close the opening 121. At the same time, the filter element 21 is stably positioned on the receiving part 14.

[0027] In use, the filter assembly 2 is installed onto the housing 1, and the filter element 21 is securely fixed by the receiving part 14. When the filter assembly 2 is installed in place, the cover 23 can apply pressure to the filter element 21 through the handle 22, so that the filter element 21 is installed securely. The filter holes 211 densely distributed around the filter element 21 can effectively intercept impurities in the incoming water. When cleaning or replacement is required, simply open the cover 23, and the entire filter assembly 2 can be easily taken out upwards through the opening 121 via the handle 22, which improves the user experience and extends the service life of the filter assembly.

[0028] The water inlet 11 is provided with at least one horizontally arranged inlet 111, and the water outlet 13 has an inclined outlet 131, so that the inlet 111 and the outlet 131 are offset from each other to form a predetermined water path A. The offset design of the horizontal inlet 111 and the inclined outlet 131 forms the predetermined water path A, which extends the water flow path and improves the impurity interception efficiency.

[0029] The housing 1 includes a detachably connected upper housing 15 and a lower housing 16. The water inlet 11 and the filter 12 are disposed on the upper housing 15, and the water outlet 13 is disposed on the lower housing 16. The detachable connection facilitates the processing and forming of each housing and also makes the installation of both easier. The upper housing 15 and the lower housing 16 can be connected by threads or snap-fit.

[0030] The receiving part 14 is a step 141 provided on the inner wall of the upper shell 15. A plurality of evenly distributed support ribs 142 are also provided between the bottom of the step 141 and the inner wall of the upper shell 15. The provision of support ribs 142 can improve the support strength of the step 141, making the step 141 more stable when supported.

[0031] The bottom surface 161 of the lower housing 16 is inclined, and the bottom surface 161 gradually decreases in height from the side away from the water inlet 11 toward the water outlet 13. The inclined bottom surface 161 allows small impurities accumulated in the lower housing 16 to move toward the lower part of the bottom surface 161, making it easier to remove them later.

[0032] The filter element 21 includes a filter cup 212, and the upper end of the filter cup 212 is provided with an outwardly protruding annular abutment edge 213. The annular abutment edge 213 can be supported and abutted by the receiving part 14. A plurality of filter holes 211 are evenly arranged on the cup body of the filter cup 212.

[0033] The filter cup 212 has a first through hole 2121 in the middle for the handle 22 to pass through. The handle 22 is also threaded with a first locking member 24 and a second locking member 25. When the first locking member 24 and the second locking member 25 are locked onto the handle 22, the bottom of the filter cup 212 can be clamped and locked to the lower end of the handle 22. The first locking member 24 and the second locking member 25 are arranged vertically, one inside the filter cup 212 and the other connected to the bottom of the filter cup 212. The upper and lower clamping and locking mechanism securely locks the filter cup 212 to the lower end of the handle 22. When the cover 23 is detached from the housing 1, the filter 21 can be easily removed.

[0034] The cover 23 has a second through hole 231 through which the upper end of the handle 22 can pass. The handle 22 is also connected to a mounting head 26, which is threadedly connected to the portion of the handle 22 protruding to the upper side of the cover 23. The threaded connection between the mounting head 26 and the handle 22 facilitates installation and allows for quick replacement if the handle 22 is damaged. The second through hole 231 facilitates the positioning of the handle 22.

[0035] The lower housing 16 is provided with a drain pipe 162 that communicates with the water outlet 13 on the side near the water outlet 13 and close to the bottom surface 161. The outlet of the drain pipe 162 is connected to a detachable sealing cap 163. When the sealing cap 163 is closed, small impurities that remain and accumulate in the water outlet 13 can be discharged to the outside through the drain pipe 162.

[0036] like Figure 6 As shown, this utility model also provides an electric water heater, including: an electric water heater body, an inlet water filter assembly 100 as described above connected to the inlet port 31 of the electric water heater 3, and an outlet 13 connected to and communicating with the inlet port 31. The electric water heater using this inlet water filter assembly 100 can achieve inlet water filtration, reduce impurities during use, and extend its service life.

[0037] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A water inlet filter assembly for an electric water heater, characterized in that, include: The housing (1) comprises a housing (1), a filter section (12), and a water outlet (13) connected in sequence. The filter assembly (2) is disposed within the filter section (12). The inner wall of the filter section (12) is provided with an inwardly protruding receiving part (14), which is positioned lower than the water inlet (11). The top surface of the filter section (12) is also provided with an opening (121). The filter assembly (2) includes a filter element (21), which can be installed on the receiving part. The filter element (21) extends downward into the water outlet (13) on the receiving part (14). The filter element (21) has multiple filter holes (211) on its periphery. The filter element (21) is provided with a handle (22). The handle (22) is provided with a cover (23) that can be connected to the filter part (12) through the opening (121). When the cover (23) is connected to the filter part (12), the cover (23) can close the opening (121). At the same time, the filter element (21) is stably positioned on the receiving part (14).

2. The water inlet filter assembly of the electric water heater according to claim 1, characterized in that, The water inlet (11) is provided with at least one horizontally arranged water inlet (111), and the water outlet (13) has an inclined water outlet (131) so that the water inlet (111) and the water outlet (131) are misaligned to form a predetermined water path (A).

3. The water inlet filter assembly of the electric water heater according to claim 2, characterized in that, The housing (1) includes a detachably connected upper housing (15) and a lower housing (16), the water inlet (11) and the filter (12) are disposed on the upper housing (15), and the water outlet (13) is disposed on the lower housing (16).

4. The water inlet filter assembly of the electric water heater according to claim 3, characterized in that, The receiving part (14) is a step (141) set on the inner wall of the upper shell (15). A plurality of evenly distributed support ribs (142) are also provided between the bottom of the step (141) and the inner wall of the upper shell (15).

5. The water inlet filter assembly of the electric water heater according to claim 3, characterized in that, The bottom surface (161) of the lower shell (16) is inclined, and the bottom surface (161) decreases from high to low from the side away from the water inlet (11) towards the water outlet (13).

6. The water inlet filter assembly of the electric water heater according to claim 2, characterized in that, The filter element (21) includes a filter cup (212), and the upper end of the filter cup (212) is provided with an outwardly protruding annular abutment edge (213). The annular abutment edge (213) can be supported and abutted by the receiving part (14). A plurality of filter holes (211) are evenly arranged on the cup body of the filter cup (212).

7. The water inlet filter assembly of the electric water heater according to claim 6, characterized in that, The filter cup (212) has a first through hole (2121) in the middle for the handle (22) to pass through. The handle (22) is also threaded with a first locking member (24) and a second locking member (25). When the first locking member (24) and the second locking member (25) are locked on the handle (22), the bottom of the filter cup (212) can be clamped and locked at the lower end of the handle (22).

8. The water inlet filter assembly of the electric water heater according to claim 2, characterized in that, The cover (23) is provided with a second through hole (231) through which the upper end of the handle (22) can pass. The handle (22) is also connected to an mounting head (26), which is threadedly connected to the portion of the handle (22) protruding to the upper side of the cover (23).

9. The water inlet filter assembly of the electric water heater according to claim 3, characterized in that, The lower housing (16) is provided with a drain pipe (162) that communicates with the water outlet (13) on the side near the water outlet (13) and near the bottom surface (161). The outlet of the drain pipe (162) is connected to a detachable sealing cap (163).

10. An electric water heater, characterized in that, include: The electric water heater body, the water inlet port (31) of the electric water heater (3) is connected to the water inlet filter assembly (100) of the electric water heater as described in any one of claims 1 to 9, and the water outlet (13) is connected to and communicates with the water inlet port (31).

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