Water purifier

Abstract

The utility model discloses a water purifier. The water purifier comprises a shell, a water pump and a main control board, a mounting cavity is formed in the shell; the water pump is arranged in the mounting cavity; the main control board is arranged in the mounting cavity and electrically connected with the water pump, and the main control board and the water pump are both arranged on the lower half portion of the shell. Based on the embodiment of the utility model, the gravity center of the water pump is lower, and the noise is lower; the main control board and the water pump are both arranged on the lower half portion of the shell, the main control board is close to the water pump, the length of an electric wire between the water pump and the main control board can be shortened, and the material cost of the electric wire can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water, and particularly relates to a water purifier. Background Art

[0002] In the related art, a water purifier is used to connect to tap water and purify the tap water to obtain pure water that can be drunk by users. Generally, it is necessary to introduce tap water into the water purifier through a water pump so as to filter and purify the tap water through the water purification system in the water purifier.

[0003] However, the water pump generates relatively large noise during operation, which affects the user experience. Summary of the Utility Model

[0004] An embodiment of the utility model provides a water purifier. By arranging the water pump in the lower half of the housing, the noise generated by the water pump can be reduced.

[0005] An embodiment of the utility model provides a water purifier, which includes

[0006] a housing with an installation cavity provided therein;

[0007] a water pump arranged in the installation cavity; and

[0008] a main control board arranged in the installation cavity, electrically connected to the water pump, and both the main control board and the water pump are arranged in the lower half of the housing.

[0009] Furthermore, the water pump and the main control board satisfy at least one of the following conditions:

[0010] The horizontal central axis of the water pump passes through the main control board;

[0011] The horizontal central axis of the water pump is collinear with the horizontal central axis of the main control board;

[0012] Along the front-back direction of the water purifier, the orthographic projection of the water pump on the main control board at least covers the main control board.

[0013] Furthermore, the water purifier further includes a filter element. The housing includes:

[0014] a housing shell;

[0015] a filter element mounting member arranged in the housing shell and connected to the housing shell. The filter element mounting member is at least partially located in the upper half of the housing shell. The filter element mounting member has a filter element accommodating cavity for accommodating the filter element. The filter element mounting member and the housing shell jointly define the installation cavity;

[0016] wherein, the water pump and the main control board are located below the filter element mounting member.

[0017] Furthermore, the housing includes:

[0018] A bottom shell, spaced apart from and opposite to the filter element mounting member;

[0019] Wherein, the water pump is installed on the bottom shell, and the water pump is located between the bottom shell and the filter element mounting member.

[0020] Furthermore, the housing further includes:

[0021] A front shell, connected to the front end of the bottom shell and the filter element mounting member, and the front shell has a mounting opening for communicating with the filter element accommodating cavity;

[0022] Wherein, the main control board is installed on the inner wall of the front shell and is located below the mounting opening.

[0023] Furthermore, the housing further includes:

[0024] A front decorative member, installed on the outer wall of the front shell, and the front decorative member and the main control board are arranged on opposite sides of the front shell.

[0025] Furthermore, the housing further includes a rear shell, the rear shell is connected to the bottom shell and is opposite to the front shell; the water purifier further includes:

[0026] A water circuit board, installed on the inner wall of the rear shell and communicating the water pump and the filter element.

[0027] Furthermore, the water circuit board includes:

[0028] An upper communication part, communicating with the filter element; and

[0029] A lower communication part, arranged in the installation cavity and communicating with the water pump and the upper communication part.

[0030] Furthermore, the water pump and the lower communication part satisfy at least one of the following conditions:

[0031] The horizontal central axis of the water pump passes through the lower communication part;

[0032] Along the front-rear direction of the water purifier, the positive projection of the water pump on the lower communication part at least covers the lower communication part.

[0033] Furthermore, the filter element includes a first filter element and a second filter element with different filter element types, and the filter element mounting member includes:

[0034] A first accommodating shell, having a first accommodating cavity for accommodating and installing the first filter element; and

[0035] The second accommodation shell is connected to the first accommodation shell and is located below the first accommodation shell, and has a second accommodation cavity for installing the second filter element;

[0036] Wherein, the water pump and the main control board are located below the second accommodation shell.

[0037] Further, both the first accommodation shell and the second accommodation shell are cylindrical, and the filter element mounting member further includes:

[0038] A reinforcing member connected between the first accommodation shell and the second accommodation shell.

[0039] Further, the housing includes:

[0040] A top shell covering the first accommodation shell, and a limiting member is provided on the inner wall of the top shell, and the limiting member is adapted to the shape of the first accommodation shell to limit the first accommodation shell.

[0041] Further, it further includes:

[0042] A power adapter is provided outside the housing and is electrically connected to the main control board, and under the control of the main control board, the power adapter is used to provide a fixed power supply voltage or a periodically changing sawtooth power supply voltage to the water pump.

[0043] Based on the above embodiments, by arranging the water pump in the lower half of the housing, thus, the center of gravity of the water pump is lower, and when working, it is closer to the installation surface such as the ground. When the water pump drives the housing to vibrate, the amplitude of vibration is smaller. Therefore, the noise generated by the water purifier is also smaller. Moreover, since the center of gravity of the water pump is closer to the installation surface, when the water pump vibrates during operation, the swing amplitude of the water purifier can be reduced, thereby reducing the risk of the water purifier tipping over due to too large a swing amplitude;

[0044] The main control board is also arranged in the lower half of the housing, that is, both the main control board and the water pump are arranged in the lower half of the housing. Thus, the main control board and the water pump are relatively close, which can shorten the length of the wire between the water pump and the main control board, which is beneficial to saving the material cost of the wire. Moreover, since the wire connecting the water pump and the main control board is shorter, the wire can be connected to the water pump more directly and does not need to pass through other electronic devices or passes through other electronic devices less, which can reduce the electromagnetic interference generated by other electronic devices on the wire. In addition, the shorter wire enables the main control board to send control signals to the water pump more quickly, and the control process of the main control board on the water pump is more rapid. Description of the Drawings

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on the structures shown in these drawings.

[0046] Figure 1 Structural schematic diagram of an embodiment of the water purifier of the present invention;

[0047] Figure 2 For Figure 1 Structural schematic diagram of another perspective of the shown water purifier;

[0048] Figure 3 For Figure 1 Structural schematic diagram of yet another perspective of the shown water purifier;

[0049] Figure 4 For Figure 3 Cross-sectional structural schematic diagram along the BB section;

[0050] Figure 5 For Figure 1 Exploded structural schematic diagram of the shown water purifier.

[0051] Explanation of the reference numerals in the drawings:

[0052] 100 - Water purifier;

[0053] 10 - Housing; 10a - Installation cavity; 11 - Outer shell; 111 - Bottom shell; 112 - Front shell; 112a - Installation opening; 113 - Front decorative piece; 114 - Rear shell; 115 - Top shell; 116 - Left side shell; 117 - Right side shell; 12 - Filter element installation part; 121 - First accommodation shell; 121a - First accommodation cavity; 122 - Second accommodation shell; 122a - Second accommodation cavity; 123 - Reinforcing piece; 124 - Middle shell; 20 - Water pump;

[0054] 30 - Main control board;

[0055] 40 - Filter element; 41 - First filter element; 42 - Second filter element;

[0056] 50 - Interaction part;

[0057] 60 - Water circuit board; 61 - Upper connection part; 62 - Lower connection part.

[0058] The realization, functional features and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0059] To make the objectives, technical solutions and advantages of the present utility model more clear, the following will further describe the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0060] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model. On the contrary, they are merely examples of devices and methods that are consistent with some aspects of the present utility model as detailed in the appended claims.

[0061] In the description of the present utility model, it should be understood that terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the preceding and following associated objects.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0063] Please refer to Figures 1-2 , an embodiment of the present utility model provides a water purifier 100. The water purifier 100 is used to filter and purify raw water such as tap water (hereinafter, tap water will be used as an example for illustration) to obtain pure water for users to drink. The water purifier 100 mainly relies on the filter element 40 and various filtration membrane technologies, such as ultrafiltration membranes, RO (Reverse Osmosis) reverse osmosis membranes, nanofiltration membranes, etc., to deeply filter and purify the raw water through physical methods. These filtration membranes have different pore sizes and can intercept various impurities in the water, including microorganisms, heavy metals, solid solubles, etc., so as to produce pure water that can be directly drunk.

[0064] Please refer to in combination Figures 3-5 , in some instances, the water purifier 100 may include a housing 10, a water pump 20, and a main control board 30.

[0065] An installation cavity 10a is provided inside the housing 10. The installation cavity 10a is used to install other components of the water purifier 100, such as the water pump 20 and the main control board 30, etc. Through the housing 10, not only can the water pump 20 and the main control board 30 be protected from damage by external objects, but also the overall aesthetics of the water purifier 100 can be improved. In this embodiment, the material, shape, size, etc. of the housing 10 are not limited. Exemplarily, the material of the housing 10 can be a metal material, such as stainless steel. In this way, the structural strength of the housing 10 itself can be enhanced, and the risk of damage to the housing 10 and other components inside the housing 10 during production, transportation, and use can be reduced; for another example, the material of the housing 10 can also be a plastic material. In this way, the housing 10 is easier to manufacture, and the material cost is lower. It can be understood that the housing 10 can also be partially made of metal material and partially made of plastic material to reduce the material cost while improving the structural strength.

[0066] Exemplarily, as Figures 1-2 shown, the shape of the housing 10 can be generally rectangular parallelepiped-shaped. In this way, the housing 10 is relatively square, not only beautiful, but also the internal space is relatively square, which is convenient for the installation of other components such as the water pump 20 and the main control board 30 inside the housing 10.

[0067] As Figure 4 shown, the water pump 20 is arranged inside the installation cavity 10a to be protected by the housing 10. The water pump 20 is used to pump tap water from the outside, such as into the housing 10, so that the water purifier 100 can filter and purify the tap water into pure water.

[0068] Please continue to refer to Figure 4 , further, the water pump 20 is arranged in the lower half of the housing 10. Since the water pump 20 will generate vibrations during operation, if the water pump 20 is installed in the upper half of the housing 10, due to the relatively high center of gravity of the water pump 20, the water pump 20 will drive the housing 10 to vibrate together with a relatively large amplitude. In this way, the housing 10 will generate a relatively large vibration relative to the ground, resulting in a relatively large noise of the water purifier 100, and also reducing the installation stability of the water purifier 100 at a fixed position.

[0069] In this embodiment, by arranging the water pump 20 in the lower half of the housing 10, in this way, the center of gravity of the water pump 20 is relatively low, and it is relatively close to the installation surface, such as the ground, during operation. When the water pump 20 drives the housing 10 to vibrate, the amplitude is relatively small. Therefore, the noise generated by the water purifier 100 is also relatively small. Moreover, since the center of gravity of the water pump 20 is relatively close to the installation surface, when the water pump 20 vibrates during operation, the swing amplitude of the water purifier 100 can be reduced, thereby reducing the risk of the water purifier 100 tipping over due to too large a swing amplitude.

[0070] Please continue to refer to Figure 4, the main control board 30 is disposed in the installation cavity 10a to be protected by the housing 10, and the main control board 30 is not exposed, reducing the risk of electric shock caused by users contacting the main control board 30. The main control board 30 is electrically connected to the water pump 20. For example, the main control board 30 and the water pump 20 are electrically connected through an electric wire (not shown in the figure) so that the main control board 30 can send a control signal to the water pump 20 through the electric wire to control the water pump 20 to work. Specifically, when receiving a user's control instruction or when the water volume in the water purifier 100 is insufficient, the main control board 30 can make the water pump 20 work to pump tap water into the water purifier 100.

[0071] Further, the main control board 30 is also disposed in the lower half of the housing 10, that is, both the main control board 30 and the water pump 20 are disposed in the lower half of the housing 10. In this way, the distance between the main control board 30 and the water pump 20 is relatively close, which can shorten the length of the electric wire between the water pump 20 and the main control board 30, facilitating the saving of the material cost of the electric wire. Moreover, since the electric wire connecting the water pump 20 and the main control board 30 is shorter, the electric wire can be connected to the water pump 20 more directly, without passing through other electronic devices or passing through other electronic devices less, which can reduce the electromagnetic interference generated by other electronic devices on the electric wire. In addition, the shorter electric wire enables the main control board 30 to send the control signal to the water pump 20 more quickly, and the control process of the main control board 30 on the water pump 20 is faster.

[0072] In some embodiments, the water purifier 100 further includes a power adapter (not shown in the figure). The power adapter is disposed outside the housing 10 instead of inside the housing 10 to avoid the risk of short circuit caused by the water in the housing 10 to the power adapter. The power adapter is electrically connected to both the main control board 30 and the water pump 20. The power adapter is used to supply power to the water pump 20 under the control of the main control board 30 to control the water pump 20 to work or stop working.

[0073] Under the control of the main control board 30, the power adapter can have the following two power supply modes for the water pump 20:

[0074] The first power supply mode, that is, the fixed voltage power supply mode, that is, the power adapter is used to provide a fixed power supply voltage to the water pump 20. For example, the fixed voltage is the rated power supply voltage of the water pump 20, for example, 24V. In this way, the water pump 20 is driven by the fixed voltage, and the working power is relatively stable. Therefore, the suction volume of tap water per unit time is also relatively stable. When the fixed voltage is the rated power supply voltage of the water pump 20, the water pump 20 has a large suction volume and can quickly replenish water to the water purifier 100.

[0075] The second power supply mode, the periodically varying voltage power supply mode. For example, the power adapter is used to provide a periodically varying sawtooth power supply voltage to the water pump 20. Exemplarily, the lowest voltage point of the sawtooth wave voltage is 0V, and the highest voltage point is 24V. When the power adapter supplies power to the water pump 20, the power supply voltage gradually rises from 0V to 24V, and then drops from 24V to 0V, repeating this cycle to form a sawtooth power supply voltage. By controlling the power adapter to provide a sawtooth power supply voltage to the water pump 20, within a unit time, the suction volume of the water pump 20 for tap water shows a process of gradually increasing and then gradually decreasing. Thus, on the one hand, the amplitude generated by the water pump 20 driven by the sawtooth power supply voltage is gradually changing, and the impact force of the water flow inside the water pump 20 is also gradually changing, so that the vibration amplitude of the water pump 20 and the housing 10 relative to the ground is also gradually changing. Therefore, the noise generated by the water pump 20 can be reduced, which is beneficial to reducing the overall noise of the water purifier 100.

[0076] Please continue to refer to Figure 4 , in some embodiments, the water pump 20 is horizontally installed in the installation cavity 10a, and the horizontal central axis C of the water pump 20 passes through the main control board 30, that is, the water pump 20 and the main control board 30 are at the same installation height or approximately at the same installation height. Thus, it is beneficial to reduce the length of the wire between the water pump 20 and the main control board 30. Therefore, it is beneficial to reduce the electromagnetic interference of other electronic devices on the wire, and it is also beneficial to reduce the transmission path length of the control signal from the main control board 30 to the water pump 20.

[0077] Furthermore, the horizontal central axis C of the water pump 20 is collinear with the horizontal central axis (not shown in the figure) of the main control board 30. Thus, it can be considered that the water pump 20 and the main control board 30 are at the same installation height. In this way, the length of the wire between the water pump 20 and the main control board 30 can be further reduced, which is beneficial to reducing the electromagnetic interference of other electronic devices on the wire, and it is also beneficial to reducing the transmission path length of the control signal from the main control board 30 to the water pump 20.

[0078] Or, in still other embodiments, along the front-back direction AA of the water purifier 100, the front projection of the water pump 20 on the main control board 30 at least covers the main control board 30, that is, the water pump 20 and the main control board 30 are at the same installation height or approximately at the same installation height. Thus, it is beneficial to reduce the length of the wire between the water pump 20 and the main control board 30, which is beneficial to reducing the electromagnetic interference of other electronic devices on the wire, and it is also beneficial to reducing the transmission path length of the control signal from the main control board 30 to the water pump 20.

[0079] Please refer to Figures 4-5 , in some embodiments, the water purifier 100 further includes a filter element 40. The filter element 40 can intercept various impurities in the water, including microorganisms, heavy metals, solid soluble substances, etc., so as to produce pure water that can be directly drunk.

[0080] The housing 10 includes an outer shell 11 and a filter element mounting member 12.

[0081] The outer shell 11 serves as an appearance component of the water purifier 100. Exemplarily, its shape can be a cuboid, which is not only aesthetically pleasing but also has a relatively regular internal space in the cuboid-shaped outer shell 11, facilitating the installation of other components inside the outer shell 11, such as the water pump 20, the main control board 30, and the filter element mounting member 12, etc.

[0082] The filter element mounting member 12 is disposed inside the outer shell 11 and connected to the outer shell 11. At least a part of the filter element mounting member 12 is located in the upper half of the outer shell 11. That is to say, a part of the filter element mounting member 12 can be located in the upper half of the outer shell 11, and the other part can be located in the lower half of the outer shell 11. The filter element mounting member 12 can also be entirely installed in the upper half of the outer shell 11. The filter element mounting member 12 has a filter element accommodating cavity 12a, and the filter element 40 is detachably installed in the filter element accommodating cavity 12a, so as to facilitate replacing the new filter element 40 after the filter element 40 reaches the service life, so that the water purification function of the water purifier 100 can be available for a long time.

[0083] The filter element mounting member 12 and the outer shell 11 together define an installation cavity 10a. Since at least a part of the filter element mounting member 12 is located in the upper half of the outer shell 11, the filter element mounting member 12 and the lower half of the outer shell 11 define the installation cavity 10a. That is to say, the installation cavity 10a is formed in the lower half of the housing 10. Since the water pump 20 and the main control board 30 are installed in the installation cavity 10a, the water pump 20 and the main control board 30 are located below the filter element mounting member 12. In this way, by setting the filter element 40, the filter element 40 can filter and purify tap water to obtain pure water for users to drink. By setting the filter element mounting member 12, the detachable and replaceable installation of the filter element 40 can be realized. By setting the filter element mounting member 12 at least in the upper half of the outer shell 11, the water pump 20 and the main control board 30 can be arranged below the filter element mounting member 12. In this way, the layout among the filter element mounting member 12, the water pump 20, the main control board 30, and the filter element 40 is reasonable, which not only realizes the water purification function of the water purifier 100 itself, but also the noise generated by the water pump 20 is small, and the length of the wire between the main control board 30 and the water pump 20 is also short.

[0084] Please refer to Figures 4-5, in some embodiments, the housing 11 includes a bottom shell 111. The bottom shell 111 is the bottom housing of the housing 11. The bottom shell 111 is spaced apart from and opposite to the filter element mounting member 12. The space between the bottom shell 111 and the filter element mounting member 12 is within the installation cavity 10a. The water pump 20 is installed on the bottom shell 111 and located within the installation cavity 10a, that is, the water pump 20 is located between the bottom shell 111 and the filter element mounting member 12, so that the center of gravity position of the water pump 20 is lower, and by supporting the water pump 20 through the bottom shell 111, the water pump 20 can be stably installed in the lower half of the housing 11, reducing the probability of the water pump 20 becoming loose from the bottom shell 111 during long-term operation.

[0085] Please continue to refer to Figures 4-5 , in some embodiments, the housing 11 further includes a front shell 112. The front shell 112 is the front housing of the housing 11. The front shell 112 is connected to the bottom shell 111 and the front end of the filter element mounting member 12. The front shell 112 has an installation opening 112a for communicating with the filter element accommodation cavity 12a. Through the installation opening 112a, the disassembly and assembly of the filter element 40 can be realized, so as to realize the installation and replacement of the filter element 40.

[0086] As Figures 4-5 shown, further, the main control board 30 is installed on the inner wall of the front shell 112. In this way, by providing an interaction member 50 for interacting with the user, such as a display light, a display screen, a touch screen or a button, etc., on the front shell 112, the interaction member 50 can be electrically connected to the main control board 30 at a relatively short distance, which is beneficial to reducing the length of the electrical wires between the interaction member 50 and the main control board 30. Or, the interaction member 50 can be directly welded to the main control board 30 and exposed through the front shell 112. In this way, no electrical wires need to be provided between the interaction member 50 and the main control board 30, and the cost is lower. In other embodiments, the main control board 30 can also be installed at other positions, such as on the left shell 116 or the right shell 117 described below.

[0087] Furthermore, the main control board 30 is located below the installation opening 112a, so that the main control board 30 does not affect the disassembly and assembly process of the filter element 40 through the installation opening 112a, and at the same time, the main control board 30 is located in the lower half of the housing 11, so that the length of the electrical wires between the main control board 30 and the water pump 20 is shorter.

[0088] Please refer to Figure 5 , in some embodiments, the housing 11 further includes a front decorative member 113. The front decorative member 113 is installed on the outer wall of the front shell 112, and the front decorative member 113 and the main control board 30 are arranged back to back with respect to the front shell 112. The front decorative member 113 can cover the installation opening 112a and only expose the interaction member 50. In this way, the integrity of the front part of the water purifier 100 can be stronger, the aesthetic degree can be higher, and the front decorative member 113 can also protect and install the interaction member 50.

[0089] Please refer to 4-Figure 5 , in some embodiments, the housing 11 further includes a rear housing 114. The rear housing 114 is connected to the bottom housing 111 and is disposed opposite to the front housing 112. An installation cavity 10a is formed between the lower half of the rear housing 114 and the lower half of the front housing 112. The water purification machine 100 further includes a water circuit board 60, which functions to convert the water circuit and connect the water pump 20 and the filter element 40. When the main control board 30 controls the water pump 20 to work, tap water is pumped by the water pump 20 to the water circuit board 60 and then pumped through the water circuit board 60 to the filter element 40 for filtration.

[0090] Furthermore, the water circuit board 60 is installed on the inner wall of the rear housing 114. In addition, the main control board 30 is installed on the inner wall of the front housing 112. That is to say, the water circuit board 60 and the main control board 30 are respectively disposed on the rear housing 114 and the front housing 112, and the water circuit board 60 and the main control board 30 are opposite and spaced apart. When installing the water circuit board 60 and the main control board 30, they do not affect each other, which is convenient for installation. And after installation, the water leaked from the water circuit board 60 is less likely to drip or flow to the main control board 30, reducing the risk of short - circuit of the electronic components on the main control board 30 caused by the water leaked from the water circuit board 60.

[0091] Please continue to refer to Figure 4 - Figure 5 , in some embodiments, the water circuit board 60 includes an upper connection part 61 and a lower connection part 62. The upper connection part 61 is connected to the filter element 40. The lower connection part 62 is located below the upper connection part 61 and is disposed in the installation cavity 10a, and the lower connection part 62 is connected to the water pump 20 and the upper connection part 61. That is to say, the water pump 20, the lower connection part 62, the upper connection part 61 and the filter element 40 are connected in sequence. The water pump 20 and the lower connection part 62 can be connected through a water pipe (not shown in the figure). In this way, the tap water pumped by the water pump 20 can enter the filter element 40 through the lower connection part 62 and the upper connection part 61 in sequence. Moreover, since both the lower connection part 62 and the water pump 20 are disposed in the installation cavity 10a, it is beneficial to reduce the length of the water pipe between the water pump 20 and the lower connection part 62, which is beneficial to reducing the material cost. More importantly, the length of the water pipe between the water pump 20 and the lower connection part 62 is short, and the lower connection part 62 and the water pump 20 are at the same height or approximately at the same height. Under the same supply voltage, the water outlet resistance of the water pump 20 when pumping tap water is smaller, and the water pump 20 has a larger water output.

[0092] Please refer to Figure 4 , in some embodiments, the horizontal central axis C of the water pump 20 passes through the lower connection part 62. That is to say, the water pump 20 and the lower connection part 62 are at the same installation height or approximately at the same installation height. In this way, it is beneficial to reduce the length of the water pipe between the water pump 20 and the lower connection part 62, and it is beneficial to reduce the water outlet resistance of the water pump 20 to increase the water output of the water pump 20.

[0093] In some embodiments, along the front-rear direction AA of the water purifier 100, the orthographic projection of the water pump 20 on the lower connection part 62 at least covers the lower connection part 62. That is, the water pump 20 and the lower connection part 62 are at the same installation height or approximately at the same installation height. In this way, it is beneficial to reduce the length of the water pipe between the water pump 20 and the lower connection part 62, and is also beneficial to reduce the water outlet resistance of the water pump 20 to increase the water output of the water pump 20.

[0094] In some embodiments, the filter element 40 includes a first filter element 41 and a second filter element 42 of different filter element 40 types. Exemplarily, the first filter element 41 can be an RO (Reverse Osmosis) filter element 40, and the second filter element 42 can be a PCB (Polychlorinated Biphenyl) filter element 40. The PCB filter element 40 can further include a pre-filter element part (not shown in the figure) and a post-filter element part (not shown in the figure). The water output from the upper connection part 61 sequentially passes through the pre-filter element part, the RO filter element 40, and the post-filter element part, and pure water is output from the post-filter element 40 part. In this way, the tap water is equivalent to being filtered three times, and the purity of the filtered tap water is higher, ensuring that it meets the drinking standard. In other embodiments, the first filter element 41 can be a PCB filter element or other types of filter elements, and the second filter element 42 can be an RO filter element or other types of filter elements 40.

[0095] Corresponding to the first filter element 41 and the second filter element 42, the filter element mounting member 12 includes a first accommodation shell 121 and a second accommodation shell 122. The first accommodation shell 121 has a first accommodation cavity 121a for accommodating and installing the first filter element 41. The second accommodation shell 122 is connected to the first accommodation shell 121 and is located below the first accommodation shell 121. The second accommodation shell 122 has a second accommodation cavity 122a for installing the second filter element 42, so that the first accommodation shell 121 and the second accommodation shell 122 respectively detachably install the first filter element 41 and the second filter element 42, realizing the disassembly, assembly and replacement of the first filter element 41 and the second filter element 42 respectively.

[0096] Please refer to Figure 4 , further, the water pump 20 and the main control board 30 are located below the second accommodation shell 122. In this way, the water pump 20 and the main control board 30 have a lower position, which is beneficial to further reduce noise and also shortens the wire length between the main control board 30 and the water pump 20.

[0097] Please refer to Figure 5, in some embodiments, both the first housing 121 and the second housing 122 are cylindrical, so that the first housing 121 and the second housing 122 respectively fit the cylindrical first filter element 41 and second filter element 42, facilitating the disassembly, assembly and replacement of the first filter element 41 and the second filter element 42.

[0098] Furthermore, since both the first housing 121 and the second housing 122 are cylindrical, the connection part between the first housing 121 and the second housing 122 is less. Therefore, in some embodiments, the filter element mounting member 12 further includes a reinforcing member 123. The reinforcing member 123 is connected between the first housing 121 and the second housing 122 to enhance the connection strength between the first housing 121 and the second housing 122, so that the first housing 121 and the second housing 122 can support the first filter element 41 and the second filter element 42 more permanently and stably. Exemplarily, the reinforcing member 123 may include a plurality of reinforcing plates or ribs arranged at intervals along the axial direction (i.e., the front-back direction AA) of the first housing 121.

[0099] Please continue to refer to Figure 5 , furthermore, a part of the structure of the second housing 122 can serve as the middle housing 124 of the outer housing 11. By providing the middle housing 124, the overall strength of the housing 10 can be enhanced, preventing the housing 10 from collapsing in the middle during production, transportation and normal use, resulting in damage to the housing 10.

[0100] Please refer to Figures 4-5 , in some embodiments, the outer housing 11 may further include a top housing 115. The top housing 115 covers the first housing 121, and a limiting member (not shown in the figure) is provided on the inner wall of the top housing 115. The limiting member is adapted to the shape of the first housing 121 to limit each other with the first housing 121, thereby improving the installation stability between the top housing 115 and the first housing 121.

[0101] Please refer to Figure 5 , in some embodiments, the outer housing 11 may further include a left housing 116 and a right housing 117. The left housing 116 and the right housing 117 are opposite and spaced apart. The top ends of the front housing 112, the rear housing 114, the left housing 116 and the right housing 117 are connected, and the bottom housing 111 is connected to the bottom ends of the front housing 112, the rear housing 114, the left housing 116 and the right housing 117. The front housing 112, the left housing 116, the rear housing 114 and the rear housing 114 are connected in sequence. In this way, a cuboid-shaped outer housing 11 is formed. The bottom housing 111, the front housing 112, the front decorative member 113, the rear housing 114, the top housing 115, the left housing 116 and the right housing 117 can be connected by screwing or clamping.

[0102] The lower half of the front shell 112, the lower half of the rear shell 114, the lower half of the left shell 116, the lower half of the right shell 117, the second accommodating shell 122 and the bottom shell 111 jointly define an installation cavity 10a. In this way, the overall layout of the housing 10 is reasonable, which not only realizes the water purification function of the water purifier 100, but also enables the water pump 20 to have a greater water output, lower noise, a shorter wire length between the water pump 20 and the main control board 30, a shorter water pipe length between the water pump 20 and the lower connecting part 62, and lower material costs.

[0103] In the attached drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0104] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water purifier, characterized in that, The water purifier includes: A housing having an installation cavity therein. The housing includes a bottom shell, a front shell, and a rear shell. The front shell is connected to the front end of the bottom shell, and the rear shell is connected to the bottom shell and is disposed opposite to the front shell. A water pump disposed in the installation cavity and mounted on the bottom shell. A main control board disposed in the installation cavity, mounted on the inner wall of the front shell, and electrically connected to the water pump. Both the main control board and the water pump are disposed in the lower half of the housing. And A water circuit board mounted on the inner wall of the rear shell and communicating with the water pump. Wherein, the horizontal central axis of the water pump passes through the main control board.

2. The water purifier according to claim 1, wherein The water pump and the main control board satisfy at least one of the following conditions: The horizontal central axis of the water pump is collinear with the horizontal central axis of the main control board. Along the front-back direction of the water purifier, the positive projection of the water pump on the main control board at least covers the main control board.

3. The water purifier according to claim 1, characterized in that, The water purifier further includes a filter element. The housing includes: An outer shell; A filter element mounting member disposed inside the outer shell and connected to the outer shell. The filter element mounting member is at least partially located in the upper half of the outer shell. The filter element mounting member has a filter element accommodation cavity for accommodating the filter element. The filter element mounting member and the outer shell together define the installation cavity. Wherein, the water pump and the main control board are located below the filter element mounting member.

4. The water purifier as described in claim 3, characterized in that, The outer shell includes: The bottom shell, spaced apart from and opposite to the filter element mounting member. Wherein, the water pump is located between the bottom shell and the filter element mounting member.

5. The water purifier according to claim 4, characterized in that, The outer shell further includes: The front shell, connected to the front end of the filter element mounting member. The front shell has an installation opening for communicating with the filter element accommodation cavity. Wherein, the main control board is located below the installation opening.

6. The water purifier according to claim 5, characterized in that, The outer shell further includes: A front decorative member mounted on the outer wall of the front shell, and the front decorative member and the main control board are disposed on opposite sides of the front shell.

7. The water purifier according to claim 5, wherein The outer shell further includes the rear shell, and the water circuit board also communicates with the filter element.

8. The water purifier according to claim 7, characterized in that, The water circuit board includes: An upper communication portion communicating with the filter element; and A lower communication portion disposed in the installation cavity and communicating with the water pump and the upper communication portion.

9. The water purifier according to claim 8, characterized in that, The water pump and the lower communication portion satisfy at least one of the following conditions: The horizontal central axis of the water pump passes through the lower communication portion; Along the front-back direction of the water purifier, the positive projection of the water pump on the lower communication portion at least covers the lower communication portion.

10. The water purifier according to claim 3, characterized in that, The filter element includes a first filter element and a second filter element of different filter element types. The filter element mounting member includes: A first accommodation shell having a first accommodation cavity for accommodating and mounting the first filter element; and A second accommodation shell connected to the first accommodation shell and located below the first accommodation shell, and having a second accommodation cavity for mounting the second filter element. Wherein, the water pump and the main control board are located below the second accommodation shell.

11. The water purifier according to claim 10, characterized in that, Both the first accommodation shell and the second accommodation shell are cylindrical. The filter element mounting member further includes: A reinforcing member connected between the first accommodation shell and the second accommodation shell.

12. The water purifier according to claim 10, wherein, The outer shell includes: A top shell is disposed over the first accommodating shell. A limiting member is provided on the inner wall of the top shell, and the limiting member is adapted to the shape of the first accommodating shell to limit the position of the first accommodating shell relative to each other.

13. The water purifier according to any one of claims 1 to 12, characterized in that, It further includes: A power adapter is disposed outside the housing and electrically connected to the main control board. Under the control of the main control board, the power adapter is configured to provide a fixed supply voltage or a periodically varying sawtooth supply voltage to the water pump.

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