Water tank assembly for household appliance and household appliance

Abstract

The utility model relates to a water tank assembly for a household appliance and the household appliance. The water level detection assembly is used for detecting water level in the water tank; the device is characterized in that the water level detection assembly comprises an ultraviolet emitter located at the top of the water tank and used for emitting ultraviolet rays into the water tank; the first ultraviolet receiver is located at the top of the water tank, is spaced from the ultraviolet emitter and is used for receiving the intensity of ultraviolet rays emitted by the ultraviolet emitter and reflected by the water surface in the water tank. The water level detection device has the advantages that on one hand, the ultraviolet emitter and the first ultraviolet receiver spaced from the ultraviolet emitter are arranged, and the water level can be indirectly detected through cooperation of the first ultraviolet receiver and the ultraviolet emitter; and on the other hand, the ultraviolet emitter can play a role in sterilization and can be regularly started to sterilize water in the water tank.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a water tank assembly for household appliances and the household appliance. Background Art

[0002] In existing household appliances, such as drinking water equipment represented by water dispensers and water purifiers, cooking equipment represented by steamers and disinfection cabinets, cleaning equipment represented by mops and steam mops, and clothing care equipment represented by ironing machines, water tanks are a common water storage container. In order to facilitate the perception of the water storage amount in the water tank, existing water tanks are usually provided with a water level detection component.

[0003] For example, the Chinese utility model patent with patent number ZL202320818683.6 (authorization announcement number CN219508711U) discloses a water making machine, which includes a water making device, a water storage tank, a water level detection device and a water level display device. The water making device is used to prepare water molecules in the air into raw water; the water storage tank is used to store raw water; the water level detection device is arranged in the water storage tank, and is used to detect the water level of the water storage tank; the water level display device is connected to the water level detection device, and is used to display the water level. The water level detection device includes a vertical rod and a floating ball movably mounted on the vertical rod. The vertical rod is vertically arranged in the water storage tank, and the floating ball moves with the movement of the water level, thereby detecting the water level.

[0004] Although the water level can be detected by the floating ball in the water tank moving with the movement of the water level, however, since a floating ball in the water level detection device is used to detect the water level of a gear, several specific gear water levels are usually set in the existing water tank, and accurate water level detection cannot be achieved.

[0005] Therefore, it is necessary to further improve the prior art. Utility Model Content

[0006] The first technical problem to be solved by the utility model is to provide a water tank assembly for household appliances that can realize accurate water level detection in view of the above-mentioned prior art.

[0007] The second technical problem to be solved by the present invention is to provide a household appliance using the water tank assembly according to the above-mentioned prior art.

[0008] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a water tank assembly for household appliances, comprising:

[0009] Water tank;

[0010] A water level detection component, used to detect the water level in the water tank;

[0011] It is characterized in that the water level detection component comprises:

[0012] A UV emitter, located on the top of the water tank, is used to emit ultraviolet light into the water tank;

[0013] The first ultraviolet receiver is located on the top of the water tank and is spaced apart from the ultraviolet emitter, and is used to receive the intensity of ultraviolet rays emitted from the ultraviolet emitter and reflected by the water surface in the water tank.

[0014] In order to realize automatic calculation of the water level, the water tank assembly further comprises a controller electrically connected to the first ultraviolet receiver, and the controller is configured to obtain a water level detection result according to a detection result of the first ultraviolet receiver.

[0015] In order to realize water quality detection in the water tank, a second ultraviolet receiver is also provided at the bottom of the water tank opposite to the ultraviolet emitter. The second ultraviolet receiver is used to receive the intensity of ultraviolet rays emitted from the ultraviolet emitter and after penetrating the water surface in the water tank. The second ultraviolet receiver is electrically connected to the controller, and the controller is configured to obtain water quality detection results in the water according to the detection results of the second ultraviolet receiver.

[0016] There are many structures of the above-mentioned ultraviolet emitter. Preferably, the ultraviolet emitter includes:

[0017] A first joint, which is hollow inside and is restrained on the top of the water tank in a detachable connection manner;

[0018] a first bracket constrained within the first joint;

[0019] The light source is restrained on the first bracket and is used for emitting ultraviolet light.

[0020] To facilitate the disassembly and installation of the first joint, both ends of the first joint are open, the outer peripheral wall of the first joint extends outward to form an outer edge, the top of the water tank is provided with a through hole, the first joint is inserted into the through hole and partially exposed at the top of the water tank, an external thread is provided on the outer wall of the first joint exposed at the top of the water tank, the outer edge of the first joint is abutted against the inner wall of the top of the water tank, and the top of the water tank is provided with a nut threadedly connected to the external thread of the first joint.

[0021] In order to achieve the installation of the light source, the first bracket includes a tube body with openings at both ends, and at least two hooks are arranged inward on the inner wall of the bottom end of the tube body, and all the hooks are arranged around to form a placement portion for placing the circuit board installed with the light source.

[0022] In order to install the first bracket in the first joint, a clamping pin is provided outwardly on the outer wall of the first bracket, and a clamping slot for the clamping pin to be clamped is provided on the first joint.

[0023] Preferably, the first bracket also includes an annular wall arranged adjacent to the outer periphery of the top end of the tube body, the clamping foot is arranged on the outer periphery of the annular wall, and the top end of the tube body is also provided with a plug for closing the top of the tube body and closing the gap area between the tube body and the annular wall.

[0024] In order to protect the light source so that it is waterproof and prevents the light source from contacting water, the ultraviolet emitter also includes a protective cover with an opening on the top. The protective cover is constrained on the outer periphery of the tube body and is constrained on the lower end surface of the annular wall, so that a closed space is formed between the protective cover and the lower end surface of the annular wall, and the lower half of the tube body is arranged in the closed space.

[0025] Furthermore, the first ultraviolet receiver comprises:

[0026] A second joint, which is hollow inside and is restrained on the top of the water tank in a detachable connection manner;

[0027] a second bracket constrained within the second joint;

[0028] The first receiver is constrained on the second bracket and is used for receiving ultraviolet rays.

[0029] Preferably, the mounting structure of the first receiver is the same as the mounting structure of the light source.

[0030] Preferably, the structure of the first ultraviolet receiver is the same as that of the second ultraviolet receiver.

[0031] The technical solution adopted by the utility model to solve the second technical problem is: a household appliance, characterized in that: the water tank assembly as described above is applied.

[0032] Preferably, the household appliance is a water dispenser, a water purifier or a water heater.

[0033] Compared with the prior art, the utility model has the advantages that: by providing an ultraviolet emitter and a first ultraviolet receiver spaced from the ultraviolet emitter, on the one hand, the first ultraviolet receiver is used to detect the intensity of ultraviolet rays emitted from the ultraviolet emitter and reflected by the water surface in the water tank. If the water surface in the water tank is fixed, the intensity of ultraviolet rays received by the first ultraviolet receiver is also a fixed value; if the water surface in the water tank moves up, the path of ultraviolet rays from emission to reflection to the first ultraviolet receiver is shortened, and the intensity of ultraviolet rays received by the first ultraviolet receiver becomes relatively stronger; if the water surface in the water tank moves down, the path of ultraviolet rays from emission to reflection to the first ultraviolet receiver is shortened, and the intensity of ultraviolet rays received by the first ultraviolet receiver becomes relatively weaker, so the cooperation of the first ultraviolet receiver and the ultraviolet emitter can indirectly detect the water level; on the other hand, the ultraviolet emitter can play a sterilizing role and can be regularly turned on to sterilize the water in the water tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the water tank assembly in the embodiment of the utility model;

[0035] Figure 2 for Figure 1 A cross-sectional view of

[0036] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0037] Figure 4 This is an exploded view of the ultraviolet emitter in the embodiment of the utility model;

[0038] Figure 5 for Figure 2 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] like Figures 1 to 5 As shown, the household appliance includes a water tank assembly. The household appliance in this embodiment is a water dispenser, a water purifier, a water heater or other appliances with a water tank.

[0041] The water tank assembly includes a water tank 1 and a water level detection assembly for detecting the water level in the water tank 1; Figure 2As shown, the water level detection assembly in this embodiment includes an ultraviolet emitter 21, a first ultraviolet receiver 22 and a controller (not shown in the figure). The ultraviolet emitter 21 and the first ultraviolet receiver 22 are both arranged on the top of the water tank 1. The ultraviolet emitter 21 is used to emit ultraviolet rays into the water tank 1; the first ultraviolet receiver 22 is arranged at intervals from the ultraviolet emitter 21, and is used to receive the intensity of ultraviolet rays emitted from the ultraviolet emitter 21 and reflected by the water surface in the water tank 1; the controller is electrically connected to the first ultraviolet receiver 22, and the controller is configured to obtain a water level detection result according to the detection result of the first ultraviolet receiver 22. The above method of obtaining a water level detection result according to the ultraviolet intensity is a prior art, and the water level detection method is not improved in this application.

[0042] The bottom of the water tank 1 is also provided with a second ultraviolet receiver 3 arranged opposite to the ultraviolet emitter 21. The second ultraviolet receiver 3 is used to receive the intensity of ultraviolet rays emitted from the ultraviolet emitter 21 and penetrating the water surface in the water tank 1. The second ultraviolet receiver 3 is electrically connected to the controller, and the controller is configured to obtain the water quality detection result in the water according to the detection result of the second ultraviolet receiver 3. The specific principle of water quality detection is as follows: ultraviolet rays will attenuate when penetrating the air, but the air will not change much. The main factor for ultraviolet attenuation is distance. There will be organic matter in the water, and organic matter will absorb ultraviolet rays. Therefore, when ultraviolet rays are transmitted through water, if the organic matter in the water increases, the ultraviolet rays will be partially absorbed, so that the intensity of ultraviolet rays received by the second ultraviolet receiver 3 will be relatively weakened. Therefore, the cooperation of the second ultraviolet receiver 3 and the ultraviolet emitter can indirectly detect the water quality.

[0043] The ultraviolet emitter 21 includes a first joint 211, a first bracket 212 and a light source 213. The first joint 211 is hollow inside and is restrained on the top of the water tank 1 in a detachable connection manner; the first bracket 212 is restrained in the first joint 211; the light source 213 is restrained on the first bracket 212 for emitting ultraviolet rays.

[0044] like Figure 3 and Figure 4 As shown, both ends of the first joint 211 in this embodiment are open, the outer peripheral wall of the first joint 211 extends outward to form an outer edge 2111, the top of the water tank 1 is provided with a through hole, the first joint 211 is inserted into the through hole and partially exposed at the top of the water tank 1, and the outer wall of the first joint 211 exposed at the top of the water tank 1 is provided with an external thread 2112, and the outer edge 2111 of the first joint 211 is against the inner wall of the top of the water tank 1 ( Figure 2A silicone pad 4 is also provided between the outer edge 2111 of the first joint 211 and the inner wall of the top of the water tank 1, and a better sealing effect is achieved through the silicone pad 4. A nut 2113 threadedly connected to the external thread 2112 of the first joint 211 is provided on the top of the water tank 1.

[0045] The first bracket 212 in this embodiment includes a tube body 2121 with two ends opened. At least two hook feet 2122 ( Figure 3 The hooks 2122 are arranged to form a support portion for the circuit board 2131 mounted with the light source 213. The outer wall of the first bracket 212 is provided with a clamping foot 2123 facing outward, and the first connector 211 is provided with a clamping hole 2114 for the clamping foot 2123 to be clamped; Figure 3 As shown, the first bracket 212 further includes an annular wall 2124 disposed adjacent to the outer periphery of the top end of the tube body 2121. Figure 4 As shown, the clamping pin 2123 is arranged on the outer periphery of the annular wall 2124, and the top of the tube body 2121 is also provided with a plug 214 for closing the top of the tube body 2121 and the gap area between the tube body 2121 and the annular wall 2124. In addition, the ultraviolet emitter 21 also includes a protective cover 215 with an opening on the top, which is constrained on the outer periphery of the tube body 2121 and on the lower end surface of the annular wall 2124, so that a closed space is formed between the protective cover 215 and the lower end surface of the annular wall 2124, and the lower half of the tube body 2121 is arranged in the closed space.

[0046] In addition, Figure 5 As shown, the first ultraviolet receiver 22 includes a second joint 221, a second bracket 222 and a first receiver 223. The second joint 221 is hollow inside and is constrained on the top of the water tank 1 in a detachable connection manner. The second bracket 222 is constrained in the second joint 221; the first receiver 223 is constrained on the second bracket 222 for receiving ultraviolet rays. The mounting structure of the first receiver 223 in this embodiment is the same as the mounting structure of the light source 213. The structure of the first ultraviolet receiver 22 is different from other mounting structures of the ultraviolet emitter 21 only in the shape of the protective cover.

[0047] like Figure 2 As shown, in this embodiment, the structure of the first ultraviolet receiver 22 is the same as that of the second ultraviolet receiver 3. Of course, different structures can also be selected.

[0048] The detection principle of the water level detection component in this embodiment is: the first ultraviolet receiver is used to detect the intensity of ultraviolet rays emitted from the ultraviolet transmitter and reflected by the water surface in the water tank. If the water surface in the water tank is fixed, the intensity of ultraviolet rays received by the first ultraviolet receiver is also a fixed value; if the water surface in the water tank moves up, the path of ultraviolet rays from emission to reflection to the first ultraviolet receiver is shortened, and the intensity of ultraviolet rays received by the first ultraviolet receiver becomes relatively stronger; if the water surface in the water tank moves down, the path of ultraviolet rays from emission to reflection to the first ultraviolet receiver is shortened, and the intensity of ultraviolet rays received by the first ultraviolet receiver becomes relatively weaker. Therefore, the cooperation of the first ultraviolet receiver and the ultraviolet transmitter can indirectly detect the water level, and it is a very precise height detection, rather than a gear water surface detection.

Claims

1. A water tank assembly for household appliances, include: Water tank (1); A water level detection component, used for detecting the water level in the water tank (1); It is characterized in that the water level detection component comprises: An ultraviolet emitter (21), located at the top of the water tank (1), for emitting ultraviolet light into the water tank (1); The first ultraviolet receiver (22) is located at the top of the water tank (1) and is spaced apart from the ultraviolet emitter (21), and is used to receive the intensity of ultraviolet rays emitted from the ultraviolet emitter (21) and reflected by the water surface in the water tank (1).

2. The water tank assembly according to claim 1, Features: The water tank assembly further comprises a controller electrically connected to the first ultraviolet receiver (22), and the controller is configured to obtain a water level detection result according to a detection result of the first ultraviolet receiver (22).

3. The water tank assembly according to claim 2, Features: The bottom of the water tank (1) is also provided with a second ultraviolet receiver (3) arranged opposite to the ultraviolet emitter (21), the second ultraviolet receiver (3) being used to receive the intensity of ultraviolet rays emitted from the ultraviolet emitter (21) and penetrating the water surface in the water tank (1), the second ultraviolet receiver (3) being electrically connected to a controller, and the controller being configured to obtain a water quality detection result in the water according to a detection result of the second ultraviolet receiver (3).

4. The water tank assembly according to claim 3, Features: The ultraviolet emitter (21) comprises: A first joint (211) having a hollow interior and being restrained on the top of the water tank (1) in a detachable connection manner; A first bracket (212) is constrained in the first joint (211); The light source (213) is restrained on the first bracket (212) and is used to emit ultraviolet light.

5. The water tank assembly according to claim 4, Features: Both ends of the first joint (211) are open, and the outer peripheral wall of the first joint (211) extends outward to form an outer edge (2111); the top of the water tank (1) is provided with a through hole, and the first joint (211) is inserted into the through hole and partially exposed at the top of the water tank (1); an external thread (2112) is provided on the outer wall of the first joint (211) exposed at the top of the water tank (1); the outer edge (2111) of the first joint (211) abuts against the inner wall of the top of the water tank (1); and a nut (2113) threadedly connected to the external thread (2112) of the first joint (211) is provided at the top of the water tank (1).

6. The water tank assembly according to claim 5, Features: The first bracket (212) comprises a tube body (2121) with openings at both ends, and at least two hook feet (2122) are provided inwardly on the inner wall of the bottom end of the tube body (2121), and all the hook feet (2122) are arranged around to form a placement portion for placing a circuit board (2131) on which the light source (213) is installed.

7. The water tank assembly according to claim 6, Features: A clamping foot (2123) is provided outwardly on the outer wall of the first bracket (212), and a clamping opening (2114) for clamping the clamping foot (2123) is provided on the first joint (211).

8. The water tank assembly according to claim 7, Features: The first bracket (212) further comprises an annular wall (2124) arranged adjacent to the outer periphery of the top end of the tube body (2121), the clamping foot (2123) being arranged on the outer periphery of the annular wall (2124), and the top end of the tube body (2121) is further provided with a plug (214) for closing the top of the tube body (2121) and the gap area between the tube body (2121) and the annular wall (2124).

9. The water tank assembly according to claim 8, Features: The ultraviolet emitter (21) further comprises a protective cover (215) with an opening at the top, wherein the protective cover (215) is constrained on the outer periphery of the tube body (2121) and is constrained on the lower end surface of the annular wall (2124), so that a closed space is formed between the protective cover (215) and the lower end surface of the annular wall (2124), and the lower half of the tube body (2121) is arranged in the closed space.

10. The water tank assembly according to any one of claims 4 to 9, Features: The first ultraviolet receiver (22) comprises: A second joint (221) is hollow inside and is restrained on the top of the water tank (1) in a detachable connection manner; A second bracket (222) is constrained in the second joint (221); The first receiver (223) is restrained on the second bracket (222) and is used for receiving ultraviolet rays.

11. The water tank assembly according to claim 10, Features: The mounting structure of the first receiver (223) is the same as the mounting structure of the light source (213).

12. The water tank assembly according to claim 10, Features: The structure of the first ultraviolet receiver (22) is the same as that of the second ultraviolet receiver (3).

13. A household appliance, Features: The water tank assembly is applied as described in any one of claims 1 to 12.

14. The household appliance according to claim 13, Features: The household appliance is a water dispenser, a water purifier or a water heater.

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