Water tank assembly and dehumidifier
By designing the location and structure of the drain and inlet in the water tank assembly, and combining it with baffles and arc arms, the problems of splashing and leakage caused by the wide drain cover of existing dehumidifiers have been solved, improving sealing performance and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
Existing dehumidifiers have excessively wide drain covers, leading to water splashing, poor sealing, and the risk of water leakage and splashing, which affects user experience and safety.
The water tank assembly is designed with the drain and inlet located at opposite ends of the tank shell in the width direction. It employs structures such as baffles and arc arms to ensure that the drain cover opens and closes automatically under gravity. Combined with a guide channel and sealing plate, it enhances the sealing performance and prevents splashing and leakage.
It achieves excellent sealing and splash-proof performance of the water tank assembly, improves drainage efficiency and user experience, and reduces cleaning time and safety hazards.
Smart Images

Figure CN224454872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water holding equipment technology, and in particular to a water tank assembly and a dehumidifier having the water tank assembly. Background Technology
[0002] A dehumidifier mainly consists of a compressor, heat exchanger, fan blades, water tank, casing, and controller. The fan blades draw humid air into the casing, where the moisture in the air condenses into small water droplets through a low-temperature heat exchanger. The treated, dry air is then expelled from the casing. This cycle maintains a suitable relative humidity in the room. The condensate from the air is collected and stored in the water tank. When the water tank reaches the preset full level, the user needs to empty the water to prevent the dehumidifier from continuing to run and causing water to overflow from the tank.
[0003] A dehumidifier's water tank includes a housing and a cover assembly. The cover assembly includes a connecting cover and a drain cover. The connecting cover is installed on the front side of the upper opening of the housing, and the drain cover is rotatably installed on the connecting cover and located on the rear side of the upper opening of the housing. The connecting cover is equipped with a water tank handle for the user to hold. When the user tilts the water tank housing while holding the water tank handle in order to empty the condensate filling the water tank housing, the drain cover rotates relative to the connecting cover and opens the rear part of the upper opening of the water tank, thus draining the condensate through the opened rear part of the upper opening of the water tank.
[0004] However, the existing dehumidifier's drain cover extends across the entire width of the water tank, resulting in an excessively wide drain outlet. This oversized outlet easily causes water splashing when emptying the drain. Furthermore, the drain cover lacks a restraining structure for fixation, making it susceptible to water impact and outward expansion during removal from the dehumidifier's casing, posing a risk of water splashing. Additionally, the drain cover's location near the rear edge of the water tank leads to poor sealing, resulting in leaks at the rear edge of the water tank. This not only affects the user experience but also poses safety hazards such as accidental water spillage and slippery floors. Summary of the Invention
[0005] To achieve the primary objective of this utility model, it provides a water tank assembly with superior sealing and anti-splash properties, and rationally designs the drain outlet to ensure sufficient outlet size for efficient drainage while avoiding excessively large outlets that could cause water splashing, thereby improving the user experience.
[0006] To achieve the second objective of this utility model, this utility model provides a dehumidifier having the above-described water tank assembly.
[0007] To achieve the first objective of this utility model, this utility model provides a water tank assembly, including a water tank shell, a water tank cover, and a drain cover. The water tank cover has a drain outlet and a water inlet, which are located at opposite ends of the width of the water tank shell. The drain cover is rotatably hinged to the water tank cover and is used to open or close the drain outlet. The outer peripheral cover plate of the drain cover abuts against the outer end face of the water tank cover, and a baffle plate is provided on the inner end face of the water tank cover protruding inward around the periphery of the drain outlet.
[0008] As can be seen from the above solution, the water tank cover of this utility model is used to cover the upper open end of the water tank shell, so that the water tank cover and the periphery of the water tank shell are sealed, thereby preventing water leakage around the water tank shell. At the same time, the drain port and water inlet of this utility model water tank cover are located at both ends of the width direction of the water tank shell, so as to prevent the water tank cover from being close to the periphery of the water tank shell and causing water leakage. Furthermore, the width of the drain port of this utility model is smaller than the width of the entire water tank shell, so as to prevent water splashing when pouring water due to an excessively large drain port. Thus, it can ensure sufficient drain port size to ensure drainage efficiency, avoid water splashing due to an excessively large drain port, and reduce the time and effort required for users to clean.
[0009] When a user needs to empty the water tank of this utility model, the drain outlet side of the tank is tilted downwards, causing the water inside to automatically open the drain cover under its own weight, thus achieving automatic water emptying. After emptying, the tank is placed upright with the drain outlet facing upwards. The drain cover then automatically resets and closes under its own weight, avoiding the inconvenience of manually closing the drain cover and preventing leaks or overflows due to forgetting to close it. When the drain outlet is closed, the outer peripheral cover plate of the drain cover of this utility model abuts against the outer end face of the water tank cover, thereby closing the drain outlet and avoiding the risk of water splashing out due to the impact of water sloshing inside the water tank shell. In addition, a baffle plate is provided on the inner end face of the water tank cover around the drain outlet, which can block the impact of water sloshing inside the water tank shell on the drain cover and has a diversion effect on the water sloshing inside the water tank shell, so as to avoid the risk of water splashing out due to the impact of water sloshing inside the water tank shell, thereby improving the sealing performance of the drain cover in closing the drain outlet.
[0010] Therefore, the water tank assembly of this utility model has better sealing and anti-splash properties, and the drain outlet is rationally designed to ensure sufficient drain outlet size to ensure drainage efficiency, while avoiding the problem of water splashing due to excessively large drain outlet, thereby improving the user experience.
[0011] A further embodiment is that the inner end face of the drain cover is provided with an arc-shaped arm, and the arc-shaped arm is rotatably hinged to the inner end face of the water tank cover away from the hinge end of the drain cover; and / or, a limiting platform is provided in the middle of the drain cover protruding towards the water tank shell, and the limiting platform is inserted into the drain outlet.
[0012] A further option is to provide a flow guide groove on the outer end face of the water tank cover, with the water inlet located between the groove wall and the bottom surface of the flow guide groove.
[0013] A further solution is to install a guide nozzle at the bottom of the guide groove, which is inclined downwards at the position corresponding to the water inlet.
[0014] A further embodiment is that a sealing plate is provided on the front side of the water tank cover, and the sealing plate abuts against the inner circumferential surface of the front side of the water tank shell; and / or, a U-shaped groove is provided on the rear side of the water tank cover, and the U-shaped groove fits into the upper end of the rear circumferential wall of the water tank shell; and / or, an inner baffle is provided with an inward protrusion on the inner end face of the rear side of the water tank cover, and the inner baffle abuts against the inner circumferential surface of the rear side of the water tank shell.
[0015] A further embodiment includes a handle that is rotatably hinged to the water tank cover and positioned near the front of the water tank shell. The sealing plate includes a first plate segment and two second plate segments, which are located on the left and right sides of the handle, respectively. The second plate segments are positioned corresponding to the handle and protrude inward from the inner end face of the water tank cover, while the second plate segments protrude outward from the outer end face of the water tank cover.
[0016] A further embodiment is that a sealing groove is provided on the contact surface of the first plate segment that abuts against the inner front circumferential surface of the water tank shell, and the sealing groove extends upward on the inner front circumferential surface of the water tank shell; and / or, a limiting groove is provided on the inner front circumferential surface of the water tank shell, and the lower end of the first plate segment is inserted into the limiting groove.
[0017] A further design involves having multiple slots on the inner circumferential surface of the water tank shell, arranged circumferentially around the water tank shell, and multiple protruding buckles on the outer circumference of the water tank cover, with each buckle embedded in a slot.
[0018] A further design involves an arc-shaped section on the rear periphery of the water tank shell, with a positioning groove at the upper center of the arc-shaped section. A positioning platform is protruding inward from the inner end face of the water tank cover, and the positioning platform is inserted into the positioning groove.
[0019] To achieve the second objective of this utility model, this utility model provides a dehumidifier, including a water tank assembly, which is the water tank assembly described above. Attached Figure Description
[0020] Figure 1 This is a first-view structural diagram of an embodiment of the water tank assembly of this utility model.
[0021] Figure 2This is a second-view structural diagram of an embodiment of the water tank assembly of this utility model.
[0022] Figure 3 This is an exploded view of an embodiment of the water tank assembly of this utility model.
[0023] Figure 4 This is a first-view sectional view of an embodiment of the water tank assembly of this utility model.
[0024] Figure 5 yes Figure 4 Enlarged view at point A.
[0025] Figure 6 yes Figure 4 Enlarged view at point B.
[0026] Figure 7 This is a second-view sectional view of an embodiment of the water tank assembly of this utility model.
[0027] Figure 8 yes Figure 7 Enlarged view at point C.
[0028] Figure 9 yes Figure 7 Enlarged view at point D.
[0029] Figure 10 This is a first-view structural diagram of the water tank shell in an embodiment of the water tank assembly of this utility model.
[0030] Figure 11 This is a second-view structural diagram of the water tank shell in an embodiment of the water tank assembly of this utility model.
[0031] Figure 12 This is a first-view structural diagram of the water tank cover in an embodiment of the water tank assembly of this utility model.
[0032] Figure 13 This is a second-view structural diagram of the water tank cover in an embodiment of the water tank assembly of this utility model.
[0033] Figure 14 This is a first-view structural diagram of the drain cover in an embodiment of the water tank assembly of this utility model.
[0034] Figure 15 This is a second-view structural diagram of the drain cover in an embodiment of the water tank assembly of this utility model.
[0035] Figure 16 This is a side view of the drain cover in an embodiment of the water tank assembly of this utility model.
[0036] Figure 17 This is a cross-sectional view of the drain cover in the open state in an embodiment of the water tank assembly of this utility model.
[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation
[0038] See Figures 1 to 16 This embodiment discloses a water tank assembly 10, including a water tank shell 11, a water tank cover 13, and a drain cover 14. The water tank cover 13 is detachably fitted onto the upper opening 111 of the water tank shell 11. In this embodiment, the water tank cover 13 has a drain outlet 131 and a water inlet 133, located at opposite ends of the width of the water tank shell 11. The drain cover 14 is rotatably hinged to the water tank cover 13 and is used to open or close the drain outlet 131. Furthermore, in this embodiment, the outer peripheral cover plate of the drain cover 14 abuts against the outer end face of the water tank cover 13, and a baffle plate 138 protrudes inwardly around the periphery of the drain outlet 131 on the inner end face of the water tank cover 13.
[0039] In this embodiment, the water tank cover 13 of the water tank assembly 10 can be detachably fitted onto the upper opening 111 of the water tank shell 11, thereby sealing the water tank cover 13 with the periphery of the water tank shell 11 and preventing water leakage around the periphery of the water tank shell 11. At the same time, the drain outlet 131 and the water inlet 133 of the water tank cover 13 are located at both ends of the width direction of the water tank shell 11, respectively, to prevent the water tank cover 13 from leaking near the periphery of the water tank shell 11. Furthermore, the width of the drain outlet 131 is smaller than the width of the entire water tank shell 11, so as to avoid water splashing when pouring water if the drain outlet 131 is too large. This ensures that the drain outlet 131 is large enough to ensure drainage efficiency, avoids water splashing caused by an overly large drain outlet 131, and reduces the time and effort required for users to clean.
[0040] When a user needs to empty the water inside the water tank shell 11 of the water tank assembly 10 in this embodiment, the user tilts the drain outlet 131 side of the water tank shell 11 downwards, causing the drain outlet 131 to tilt downwards and lower itself. This allows the water inside the water tank shell 11 to automatically open the drain cover 14 at the drain outlet 131 under its own weight. Figure 17As shown, this design enables automatic water opening and emptying. After emptying, the water tank shell 11 is placed upright with the drain outlet 131 facing upwards. The drain cover 14 automatically resets and closes the drain outlet 131 under its own weight, avoiding the inconvenience of manually closing the drain cover 14. It also prevents water leakage or overflow when the tank is full due to forgetting to close the drain cover 14. When the drain outlet 131 is closed, the outer peripheral cover plate of the drain cover 14 in this embodiment abuts against the outer end face of the water tank cover 13, thereby closing the drain outlet 131 and avoiding the risk of water splashing out due to the impact of water sloshing inside the water tank shell 11. In addition, a baffle plate 138 is provided on the inner end face of the water tank cover 13, which protrudes inward around the periphery of the drain outlet 131. The baffle plate 138 can block the impact of water sloshing inside the water tank shell 11 on the drain cover 14 and has a drainage effect on the water sloshing inside the water tank shell 11, further avoiding the risk of water splashing out due to the impact of water sloshing inside the water tank shell 11, thereby improving the sealing performance of the drain cover 14 in closing the drain outlet 131.
[0041] Therefore, the water tank assembly 10 in this embodiment has better sealing and water-proof properties, and the drain outlet 131 is rationally designed to ensure that the size of the drain outlet 131 is sufficient to ensure drainage efficiency, while avoiding the problem of water splashing due to the drain outlet 131 being too large, thereby improving the user experience.
[0042] To further improve the sealing performance and prevent the risk of overflow when water is shaken, a limiting platform 141 is provided in the middle of the drain cover 14 protruding towards the water tank shell 11. The limiting platform 141 can be inserted into the drain outlet 131. When the limiting platform 141 of the drain cover 14 is inserted into the drain outlet 131, the drain cover 14 can be further firmly fixed at the drain outlet 131 to close the drain outlet 131. Thus, the limiting platform 141 of the drain cover 14 can effectively prevent the risk of overflow when water is shaken.
[0043] Specifically, in this embodiment, the length and width of the drain outlet 131 are designed to be (30-90)mm x (40-100)mm, with 60mm x 70mm recommended, to prevent the drain outlet 131 from being too small and affecting the drainage efficiency.
[0044] Furthermore, in this embodiment, the baffle plate 138 is a vertical plate. Optionally, the baffle plate 138 can be replaced with an inclined plate with an inclination angle or an arc-shaped plate with a bending angle to improve the smoothness of guiding water flow.
[0045] Combination Figure 14 return Figure 16In this embodiment, the inner end face of the drain cover 14 is provided with an arc-shaped arm 142. The hinged end of the arc-shaped arm 142 away from the drain cover 14 is rotatably hinged to the inner end face of the water tank cover 13. The concealed automatic flipping arc-shaped arm 142 allows the drain cover 14 to smoothly reset and close the drain outlet 131 under its own weight. Furthermore, under the impact of the water's own weight, the drain cover 14 opens appropriately with the tilt angle of the water being poured, satisfying both the need for smooth water pouring and the requirement for automatic reset and closure. Specifically, in this embodiment, the hinged end of the arc-shaped arm 142 away from the drain cover 14 is provided with a pivot 143. The inner end face of the water tank cover 13 is provided with a hinge hole 1313. The pivot 143 is rotatably located within the hinge hole 1313 to achieve the rotational hinge function. To quickly close the drain cover 14 after pouring water, a spring can be provided between the drain cover 14 and the water tank cover 13. Under the action of the spring's elastic restoring force, the drain cover 14 quickly closes the drain outlet 131. Specifically, in this embodiment, the inner end face of the limiting platform 141 of the drainage cover 14 is provided with an arc-shaped arm 142, which makes the rotation hinge of the drainage cover 14 smoother, more stable and reliable.
[0046] Combination Figure 5 In this embodiment, the outer end face of the water tank cover 13 is provided with a flow guiding groove 132, and the water inlet 133 is opened between the groove wall and the bottom surface of the flow guiding groove 132, thereby preventing water inside the water tank shell 11 from overflowing from the water inlet 133. Specifically, in this embodiment, the bottom surface of the flow guiding groove 132 is provided with a flow guiding nozzle 134 at a downward angle corresponding to the position of the water inlet 133, so that the water in the flow guiding groove 132 can be smoothly guided into the water tank shell 11 through the flow guiding nozzle 134.
[0047] To improve the sealing between the water tank cover 13 and the water tank shell 11, a sealing plate is provided on the front side of the water tank cover 13 in this embodiment. The sealing plate abuts against the inner circumferential surface of the front side of the water tank shell 11, and a U-shaped groove 135 is provided on the rear side of the water tank cover 13. The U-shaped groove 135 is fitted onto the upper end of the rear circumferential wall of the water tank shell 11, thereby effectively preventing water from overflowing from the periphery of the water tank cover 13 and the water tank shell 11 when oscillating or being pulled.
[0048] Specifically, the water tank assembly 10 in this embodiment also includes a handle 12, which is rotatably hinged to the water tank cover 13 and disposed near the front side of the water tank shell 11. The sealing plate in this embodiment includes a first plate segment 1310 and two second plate segments 139, which are respectively located on the left and right sides of the handle 12. The second plate segments 139 are disposed corresponding to the handle 12 and protrude inward from the inner end face of the water tank cover 13, and the second plate segments 139 protrude outward from the outer end face of the water tank cover 13.
[0049] To prevent water from overflowing between the second plate segment 139 at the corresponding position of the handle 12 and the inner end face of the water tank cover 13 when the handle 12 is subjected to force, a sealing groove 1311 is provided on the contact surface of the first plate segment 1310 that abuts against the front inner circumferential surface of the water tank shell 11. The sealing groove 1311 extends upward on the front circumferential surface of the water tank shell 11 to further improve the sealing effect at the corresponding position of the handle 12.
[0050] Furthermore, in this embodiment, a limiting groove 114 is provided on the inner circumference of the front side of the water tank shell 11. The lower end of the first plate segment 1310 is inserted into the limiting groove 114 to improve the installation accuracy of the first plate segment 1310 of the sealing plate, thereby improving the sealing effect.
[0051] To further improve the sealing between the water tank cover 13 and the water tank shell 11, in this embodiment, an inner baffle 137 is provided on the inner rear end face of the water tank cover 13, which abuts against the inner rear circumferential surface of the water tank shell 11, thereby forming a three-layer seal on the rear side of the water tank cover 13 and further improving the sealing effect.
[0052] To improve the stability of the water tank cover 13 at the upper opening 111 of the water tank shell 11, in this embodiment, the inner circumferential surface of the water tank shell 11 is provided with multiple slots 115, which are arranged in the circumferential direction of the water tank shell 11. The outer circumference of the water tank cover 13 is provided with multiple protruding buckles 136, and each buckle 136 is embedded in a slot 115. The design of hidden buckles 136 and slots 115 is adopted to firmly restrain the water tank cover 13 at the upper opening 111 of the water tank shell 11, which not only improves the appearance but also prevents the water tank cover 13 from falling off due to external force or the force of water sloshing inside the water tank shell 11.
[0053] To further improve installation accuracy, the rear peripheral wall of the water tank shell 11 in this embodiment has an arc-shaped wall section 112. A positioning groove 113 is provided in the middle of the upper end of the arc-shaped wall section 112. A positioning platform 1312 is provided with the inner end face of the water tank cover 13 protruding inward. The positioning platform 1312 is inserted into the positioning groove 113 to install and position the water tank cover 13.
[0054] The above embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles of this utility model patent application should be included within the scope of this utility model patent application.
Claims
1. A water tank assembly, comprising a water tank shell, a water tank cover, and a drain cover, characterized in that: The water tank cover has a drain outlet and a water inlet, which are located at opposite ends of the width of the water tank cover. The drain cover is rotatably hinged to the water tank cover and is used to open or close the drain outlet. The outer peripheral cover of the drain cover abuts against the outer end face of the water tank cover, and the inner end face of the water tank cover is provided with a baffle plate protruding inward around the periphery of the drain outlet.
2. The water tank assembly according to claim 1, characterized in that: The inner end face of the drain cover is provided with an arc-shaped arm, and the arc-shaped arm is rotatably hinged to the inner end face of the water tank cover away from the hinge end of the drain cover. And / or, a limiting platform is provided in the middle of the drain cover protruding toward the water tank shell, and the limiting platform is inserted into the drain outlet.
3. The water tank assembly according to claim 1, characterized in that: The outer end face of the water tank cover is provided with a flow guiding groove, and the water inlet is opened between the groove wall and the bottom surface of the flow guiding groove.
4. The water tank assembly according to claim 3, characterized in that: The bottom surface of the flow guide groove is inclined downwards at the position corresponding to the water inlet and has a flow guide nozzle.
5. The water tank assembly according to claim 1, characterized in that: A sealing plate is provided on the front side of the water tank cover, and the sealing plate abuts against the inner circumferential surface of the front side of the water tank shell. And / or, a U-shaped groove is provided on the rear side of the water tank cover, and the U-shaped groove is fitted onto the upper end of the rear peripheral wall of the water tank shell; And / or, the inner end face of the rear side of the water tank cover is provided with an inner baffle protruding inward, and the inner baffle abuts against the inner circumferential surface of the rear side of the water tank shell.
6. The water tank assembly according to claim 5, characterized in that: The water tank assembly also includes a handle, which is rotatably hinged to the water tank cover and disposed near the front side of the water tank shell; The sealing plate includes a first plate segment and two second plate segments. The two second plate segments are located on the left and right sides of the handle, respectively. The second plate segments are correspondingly arranged with the handle and protrude inward from the inner end face of the water tank cover. The second plate segments also protrude outward from the outer end face of the water tank cover.
7. The water tank assembly according to claim 6, characterized in that: A sealing groove is provided on the contact surface where the first plate segment abuts against the inner circumferential surface of the front side of the water tank shell, and the sealing groove extends upward on the circumferential surface of the front side of the water tank shell. And / or, a limiting groove is provided on the inner circumference of the front side of the water tank shell, and the lower end of the first plate segment is inserted into the limiting groove.
8. The water tank assembly according to claim 1, characterized in that: The inner circumferential surface of the water tank shell is provided with multiple slots, which are arranged in the circumferential direction of the water tank shell. The outer circumference of the water tank cover is provided with multiple protruding buckles, and each buckle is embedded in one of the slots.
9. The water tank assembly according to any one of claims 1 to 8, characterized in that: The rear peripheral wall of the water tank shell has an arc-shaped wall section, and a positioning groove is provided in the middle of the upper end of the arc-shaped wall section. The inner end face of the water tank cover protrudes inward to provide a positioning platform, and the positioning platform is inserted into the positioning groove.
10. A dehumidifier comprising a water tank assembly, characterised in that: the water tank assembly is a water tank assembly as claimed in any one of the preceding claims 1 to 9.