Liquid level detection assembly suitable for detergent distributor and detergent distributor

Abstract

The utility model relates to the technical field of household appliances, in particular to a liquid level detection assembly suitable for a detergent distributor and the detergent distributor, and the liquid level detection assembly comprises a light-transmitting part which comprises a carrier part and a prism part which are integrally processed and formed by adopting a transparent material; wherein a concave accommodating cavity is formed at one side end of the carrier part; the photoelectric sensor is suitable for being partially assembled in the containing cavity, and the transmitting end and the receiving end of the photoelectric sensor face the prism part. According to the utility model, the detection accuracy of the residual liquid amount in the detergent distributor can be improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a liquid level detection component and a detergent dispenser suitable for detergent dispensers. Background Technology

[0002] A dishwasher is a device used to automatically clean bowls, chopsticks, plates, dishes, knives, forks, and other tableware, reducing the user's workload, improving work efficiency, and enhancing hygiene. Dishwashers typically have a dispenser specifically for holding dishwasher detergent and liquid cleaning agents (such as rinse aid). This dispenser needs a liquid level detection function to check if there is enough detergent remaining for a single use. When the liquid level is low, it will prompt the user to add detergent through sound or light. There are currently two main liquid level detection solutions:

[0003] The first method involves a float and sensor. The principle is that when there is sufficient residual liquid, the float floats due to buoyancy, and the corresponding sensor is in a non-triggered state. When the residual liquid is insufficient, the float falls with the liquid to a certain position, and its built-in magnetic component triggers the sensor to change its state, thus achieving the function of liquid level detection. However, practical use has shown that this detection method suffers from drawbacks. Because dishwashing liquid is very viscous, the float's free-floating state is unstable and it easily adheres to the cavity wall, resulting in poor detection accuracy or even malfunction.

[0004] The second approach involves designing a prism paired with a photoelectric sensor. For example... Figure 1 and Figure 2 As shown, the photoelectric sensor 200 has an emitter 201 and a receiver 202. The emitter 201 emits light (usually infrared), and the receiver 202 receives light. When the prism 300 is placed in air, the light emitted by the emitter 201 is reflected back to the receiver 202; when the prism 300 is immersed in liquid, the light emitted by the emitter 201 is not reflected back to the receiver 202. The receiver 202 detects whether light is reflected back to determine the remaining liquid condition in the dispenser. In existing technologies, the prism 300 is typically integrally molded onto the bottom surface of the cavity, causing residual liquid to accumulate on the prism surface due to liquid tension, resulting in a serious problem of dishwashing liquid residue sticking to the walls. Furthermore, if the user does not use the dispenser for a long time, the dishwashing liquid at the bottom will crystallize and solidify, rendering the prism unusable.

[0005] Therefore, in order to improve the effectiveness of the residual liquid detection structure used in the existing technology, it is necessary to further optimize its overall structure to address the problems existing in its use. Utility Model Content

[0006] The primary objective of this invention is to provide a liquid level detection component and a detergent dispenser suitable for use in order to solve the technical problem of optimizing their performance.

[0007] The second objective of this invention is to provide a detergent dispenser to address the technical problem of optimizing the performance of its liquid level detection component.

[0008] The liquid level detection component for detergent dispensers of this invention is implemented as follows:

[0009] A liquid level detection component for a detergent dispenser, comprising:

[0010] A light-transmitting component includes a carrier portion and a prism portion integrally formed from a transparent material; wherein a recessed receiving cavity is formed on one side end of the carrier portion; and

[0011] A photoelectric sensor, which is suitable for partial assembly in a housing cavity, with the transmitting and receiving ends of the photoelectric sensor facing the prism section.

[0012] In an optional embodiment of this utility model, the prism part is located on the side of the carrier part facing away from the receiving cavity; the prism part is a triangular prism.

[0013] In an optional embodiment of this utility model, a concave-convex fitting assembly and positioning structure is further provided between the photoelectric sensor and the carrier part.

[0014] In an optional embodiment of this utility model, the assembly positioning structure includes at least one positioning post protruding from the carrier portion and at least one positioning hole corresponding to the photoelectric sensor, suitable for one-to-one insertion of the positioning post.

[0015] The detergent dispenser of this utility model is implemented as follows:

[0016] A detergent dispenser includes: an outer shell having a liquid reservoir and a liquid level detection component suitable for a detergent dispenser disposed within the liquid reservoir; wherein...

[0017] The outer shell includes a shell body for forming a liquid storage cavity and a shell cover plate for sealing the liquid storage cavity;

[0018] The housing body is provided with a mounting portion; the mounting portion has a mounting cavity for assembling the liquid level detection component suitable for the detergent dispenser;

[0019] The mounting part is located above the bottom wall of the liquid storage chamber corresponding to the liquid distribution state at the detergent dispenser, and the mounting part has an opening that connects the mounting chamber and the liquid storage chamber and is suitable for the prism part of the liquid level detection component to extend out.

[0020] When the liquid level detection component is assembled into the mounting part, the tip of the prism is separated from the bottom wall of the liquid storage chamber corresponding to the detergent dispenser in use.

[0021] In an optional embodiment of this utility model, when the liquid level detection component is assembled into the mounting part, the tip of the prism part is spaced 3-6 mm away from the bottom wall of the liquid storage chamber corresponding to the detergent dispenser in use.

[0022] In an optional embodiment of this utility model, the side wall of the shell cover is provided with a liquid inlet that communicates with the liquid storage chamber;

[0023] When the liquid level detection component is assembled into the mounting part, the prism part is located in the orthographic projection area of ​​the liquid inlet on the housing body so as to be able to view the prism part through the liquid inlet.

[0024] In an optional embodiment of this utility model, an annular limiting wall is provided in the mounting cavity and on the inner side of the opening; and

[0025] The carrier part is sealed to the limiting wall by a sealing ring.

[0026] In an optional embodiment of this invention, the outer side wall of the shell body is recessed towards the liquid storage cavity to form the mounting cavity.

[0027] In an optional embodiment of this invention, the interior of the mounting cavity is further provided with a limiting structure for locking the liquid level detection component.

[0028] In an optional embodiment of this utility model, the limiting structure includes a first limiting platform provided in the mounting cavity, adapted to abut against the outer wall of the carrier portion, and a pair of elastic hooks adapted to abut against the outer wall of the photoelectric sensor.

[0029] In an optional embodiment of this utility model, each of the elastic hooks includes a fixed end connected to the inner wall of the mounting cavity, and an elastic hook arm bent and connected to the fixed end.

[0030] By adopting the above technical solution, this utility model has the following beneficial effects: The liquid level detection component and detergent dispenser of this utility model, which are suitable for detergent dispensers, can achieve rapid assembly and positioning of photoelectric sensors through an integrally formed receiving cavity in the light-transmitting component. The assembled liquid level detection component is then assembled with the liquid storage cavity of the detergent dispenser, and the prism part of the assembled liquid level detection component is spaced a certain distance from the bottom wall of the corresponding liquid storage cavity in the use state of the detergent dispenser. When the detergent level is lower than the tip of the prism part, the detergent on the prism part can completely fall off without any accumulation, thus avoiding the phenomenon of wall adhesion and improving the accuracy of liquid level detection. Furthermore, when there is a small amount of detergent on the bottom wall of the corresponding liquid storage cavity in the use state of the detergent dispenser and the user does not use it for a long time, the residual detergent may crystallize and solidify. However, because there is a certain distance between the tip of the prism part and the bottom wall of the liquid storage cavity, the solidified residual detergent on the bottom surface will not cover the prism part, preventing it from malfunctioning. Therefore, the stability and reliability of the overall liquid level measurement component in long-term use can be improved. Attached Figure Description

[0031] Figure 1 The diagram shown is a schematic representation of the structure of a prism and a photoelectric sensor in the prior art.

[0032] Figure 2 The diagram shows the implementation principle of a prism and photoelectric sensor in the prior art.

[0033] Figure 3 The diagram shown is a schematic representation of the liquid level detection component of this utility model applicable to a detergent dispenser.

[0034] Figure 4 The diagram shown is an exploded view of the liquid level detection component of the present invention, applicable to a detergent dispenser.

[0035] Figure 5 The diagram shown is a schematic representation of the light-transmitting component of the liquid level detection assembly for detergent dispensers according to this invention.

[0036] Figure 6 The diagram shown is a structural schematic of the detergent dispenser of this utility model;

[0037] Figure 7 The diagram shows the structure of the detergent dispenser of this invention with the sealing cap in an open state relative to the filling port;

[0038] Figure 8 The diagram shown is an exploded view of the detergent dispenser of this invention.

[0039] Figure 9The diagram shown is a structural schematic of the shell body of the detergent dispenser of this utility model;

[0040] Figure 10 The diagram shown is a cross-sectional view of the mounting section of the detergent dispenser of this utility model.

[0041] Figure 11 The diagram shows the cooperation structure between the mounting part of the detergent dispenser and the liquid level detection component of this utility model.

[0042] Figure 12 The diagram shown is a structural schematic of the mounting portion of the shell body of the detergent dispenser of this utility model.

[0043] Figure 13 for Figure 12 Enlarged view of part A;

[0044] Figure 14 The diagram shows the structure of the detergent dispenser of this invention applied in a dishwasher.

[0045] Figure 15 The diagram shows the structure of the detergent dispenser of this utility model applied in a dishwasher with the door in the open state.

[0046] Figure 16 The diagram shows the structure of the detergent dispenser of this invention applied in a dishwasher when the door is closed.

[0047] In the figure: Carrier part 1, Receiving cavity 11, Positioning post 12, Lug 13, Prism part 2, Prism tip 21, Photoelectric sensor 3, Positioning hole 31, Liquid storage cavity 4, Cavity bottom wall 41, Shell body 51, Shell cover plate 52, Liquid filling port 61, Sealing cover 62, Dispensing port 7, Mounting cavity 81, Opening 82, Bottom shell 83, Top cover 84, Limiting wall 85, First limiting platform 86, Second limiting platform 87, Fixed end 871, Elastic locking arm 872, Sealing ring 9, Dishwasher 10, Door 101. Detailed Implementation

[0048] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0049] Example 1:

[0050] Please see Figures 3 to 5 As shown, this embodiment provides a liquid level detection component suitable for a detergent dispenser, including: a light-transmitting element made of transparent material and a photoelectric sensor 3 used in conjunction with the light-transmitting element.

[0051] Next, specifically, the light-transmitting component includes an integrally formed carrier portion 1 and a prism portion 2; wherein a recessed receiving cavity 11 is formed on one side end of the carrier portion 1. The receiving cavity 11 here can be a regular-shaped cavity such as a cuboid cavity or a cube cavity, thereby facilitating assembly with the photoelectric sensor 3.

[0052] Referring to the accompanying drawings, in one optional embodiment, the prism section 2 is located on the side of the carrier section 1 facing away from the receiving cavity 11; the prism section 2 is a triangular prism. In this structure, after the photoelectric sensor 3 is partially assembled into the receiving cavity 11, the transmitting end and receiving end of the photoelectric sensor 3 face the prism section 2.

[0053] Furthermore, to further improve the reliability of the mating structure formed between the photoelectric sensor 3 and the carrier portion 1, a concave-convex mating assembly positioning structure is also provided between the photoelectric sensor 3 and the carrier portion 1. Referring to the accompanying drawings, in one optional embodiment, the assembly positioning structure includes at least one positioning post 12 protruding from the carrier portion 1 and at least one positioning hole 31 corresponding to the photoelectric sensor 3, suitable for one-to-one insertion of the positioning post 12.

[0054] Based on the above, it should be noted that, for the cooperation relationship between the light-transmitting component and the photoelectric sensor 3 in this embodiment, there is no need to consider the issue of complete fixation between the two. It is only necessary to determine the relative position between the light-transmitting component and the photoelectric sensor 3 by using the receiving cavity 11 of the carrier part 1 in conjunction with the assembly positioning structure. Finally, when the overall liquid level detection assembly is assembled into a specific detergent dispenser, the detergent dispenser is used to fix the light-transmitting component and the photoelectric sensor 3. The specific fixing method will be described in detail in Embodiment 2.

[0055] In summary, for the liquid level detection component applicable to the detergent dispenser in this embodiment, the photoelectric sensor 3 can be quickly assembled and positioned by means of the receiving cavity 11 integrally formed in the light-transmitting component.

[0056] Example 2:

[0057] Please see Figures 3 to 16 As shown, based on the liquid level detection component suitable for a detergent dispenser in Embodiment 1, this embodiment provides a detergent dispenser, including: an outer shell having a liquid storage chamber 4 and a liquid level detection component suitable for a detergent dispenser as in Embodiment 1 disposed in the liquid storage chamber 4.

[0058] Specifically, the outer casing includes a casing body 51 for forming a liquid storage chamber 4 and a casing cover plate 52 for sealing the liquid storage chamber 4. A liquid inlet 61 and a dispensing port 7 communicating with the liquid storage chamber 4 are provided on the side wall of the casing cover plate 52. The liquid inlet 61 is equipped with a sealing cap 62 that can be opened under normal conditions to seal the liquid inlet 61. In detail with reference to the accompanying drawings, the detergent dispenser of this embodiment can be applied to, for example, a dishwasher 10. Generally, the casing body 51 is fixedly assembled to the door 101 of the dishwasher 10, and a portion of the casing body 51 is embedded inside the door 101. Considering both the open and closed states of the dishwasher 10 door 101, the overall usage state of the detergent dispenser also roughly includes two types. First, when the dishwasher 10 door 101 is open, the casing body 51 is below and the casing cover plate 52 is above. At this time, detergent can be added to the liquid storage chamber 4 through the liquid inlet 61. When the dishwasher door 101 is closed, the cover plate 52 and the body 51 are arranged side by side along the vertical direction of the dishwasher 10, and the cover plate 52 faces the inner cavity of the detergent dispenser. At this time, detergent can be dispensed into the dishwasher 10 through the dispensing port 7 (i.e., liquid dispensing state at the detergent dispenser).

[0059] Regarding the assembly relationship between the liquid level detection component and the housing, please refer to the attached diagram for details:

[0060] The housing body 51 is provided with a mounting section; the mounting section has a mounting cavity 81 for assembling a liquid level detection component suitable for a detergent dispenser. It should be noted that the mounting section is located above the bottom wall 41 of the liquid storage cavity 4 corresponding to the liquid dispensing state at the detergent dispenser, and the mounting section has an opening 82 connecting the mounting cavity 81 and the liquid storage cavity 4, suitable for the prism portion 2 of the liquid level detection component to extend out. That is, for the entire liquid level detection component, when it is assembled into the mounting section, except for at least a portion of the prism portion 2 which extends out through the opening 82 into the liquid storage cavity 4, the rest of the structure is entirely housed within the mounting cavity 81. This structure also serves to protect the photoelectric sensor 3 from contact with the detergent.

[0061] Based on the above structure, it should be noted that for the detergent dispenser in liquid dispensing mode, the more detergent is dispensed, the less detergent remains in the storage chamber 4. Furthermore, the remaining detergent in the storage chamber 4 gradually decreases along the vertical direction of the dishwasher 10. In other words, the change in the total amount of detergent in the storage chamber 4 directly corresponds to the liquid level within the storage chamber 4. Therefore, by collecting data on the detergent level on the bottom wall 41 of the storage chamber 4 during the detergent dispenser's operation, it can be determined whether the detergent in the storage chamber 4 is nearly depleted. Thus, the liquid level detection component installed in the storage chamber 4 is primarily used to detect the detergent level on the bottom wall 41 of the storage chamber 4 during the detergent dispenser's operation. Based on this, it should be noted that:

[0062] When the liquid level detection component is assembled into the mounting section, the distance d between the tip 21 of the prism part 2 and the bottom wall 41 of the storage chamber 4 corresponding to the detergent dispenser in use is 3-6 mm. This design satisfies the requirement for detecting the remaining detergent in the storage chamber 4 while preventing detergent residue buildup. More specifically, when the detergent level is below the tip 21 of the prism part 2, the detergent on the prism part 2 can fall completely without any accumulation, thus avoiding detergent residue buildup and improving the accuracy of liquid level detection. Furthermore, when there is a small amount of detergent on the bottom wall 41 of the storage chamber 4 corresponding to the detergent dispenser in use and the user does not use it for a long time, the residual detergent may crystallize and solidify. However, because there is a certain distance between the tip 21 of the prism part 2 and the bottom wall 41 of the storage chamber 4, the solidified residual detergent on the bottom surface will not cover the prism part 2, preventing it from malfunctioning. Therefore, the stability and reliability of the overall liquid level measurement component during long-term use can be improved.

[0063] Next, it should be explained that the specific cooperation relationship between the liquid level detection component and the outer shell in this embodiment is as follows:

[0064] First, the outer side wall of the shell body 51 is recessed towards the liquid storage cavity 4 to form a mounting cavity 81, thereby improving the convenience of assembling the liquid level detection component with the mounting cavity 81 of the shell body.

[0065] Secondly, an annular limiting wall 85 is provided in the mounting cavity 81 and inside the opening 82; and the carrier part 1 is sealed to the limiting wall 85 by a sealing ring 9. This structure can prevent detergent in the liquid storage cavity 4 from leaking to the outside of the shell body 51 from the opening 82.

[0066] Furthermore, the mounting cavity 81 is also equipped with a limiting structure for locking the liquid level detection component. Based on this, after the relative position between the photoelectric sensor 3 of the liquid level detection component and the light-transmitting element is determined by the assembly positioning structure in cooperation with the receiving cavity 11 of the carrier part 1, the limiting structure is used to fix the entire liquid level detection component into the mounting cavity 81.

[0067] In this regard, referring to the accompanying drawings, an optional limiting structure is provided, which includes a first limiting platform 86 provided in the mounting cavity 81, suitable for abutting against the outer wall of the carrier part 1, and a pair of elastic hooks 87 suitable for abutting against the outer wall of the photoelectric sensor 3. Each elastic hook 87 includes a fixed end 871 connected to the inner wall of the mounting cavity 81, and an elastic arm 872 bent and connected to the fixed end 871; each elastic arm 872 forms a gap with the cavity wall of the mounting cavity 81, so that the end of the elastic arm 872 away from the fixed end 871 can move towards the cavity wall of the mounting cavity 81, thereby changing the distance between the pair of elastic hooks 87. Under normal conditions, when the elastic arm 872 is not subjected to external force, the elastic arm 872 and the fixed end 871 can optionally form an L-shaped structure.

[0068] Furthermore, it should be noted that a gap is formed between the first limiting platform 86 and each elastic hook 87, and this gap is used to limit and fix the liquid level detection component. Based on this, a lug 13 is provided on the outer side wall of the carrier part 1, and the lug 13 is adapted to be mounted on the first limiting platform 86; and the side end face of the opening 82 of the photoelectric sensor 3 facing away from the mounting part is adapted to overlap with the end face of the elastic hook arm 872 facing the first limiting platform 86.

[0069] Based on the above structure, during the process of installing the liquid level detection component into the mounting cavity 81, pressing a pair of elastic hooks 87 by hand causes the elastic arms 872 of the pair of elastic hooks 87 to move slightly towards the cavity wall of the mounting cavity 81. This increases the distance between the pair of elastic arms 872, facilitating the assembly of the liquid level detection component and allowing the prism part 2 to pass smoothly through the opening 82. After the assembly of the liquid level detection component is completed, the resetting of the pair of elastic arms 872 is used to reposition the photoelectric sensor 3 along with the connected carrier part 1. The liquid level detection component is positioned between the first limiting platform 86 and the elastic hooks 87, thus completing the assembly between the liquid level detection component and the mounting cavity 81. When it is necessary to remove the liquid level detection component from the mounting cavity 81, pressing the pair of elastic hooks 87 by hand causes the elastic arms 872 of the pair of elastic hooks 87 to move slightly towards the cavity wall of the mounting cavity 81. This increases the distance between the pair of elastic arms 872, thereby releasing the limitation on the liquid level detection component and allowing sufficient space to meet the disassembly requirements. Therefore, the liquid level detection component and the outer shell of this embodiment have a detachable mating structure, which has the advantages of low cost and high molding precision.

[0070] Furthermore, regarding the detergent dispenser of this embodiment, it should be noted that when the liquid level detection component is assembled into the mounting section, the prism part 2 is located in the orthographic projection area of ​​the filling port 61 on the housing body 51, so as to allow for direct viewing of the prism part 2 through the filling port 61. With this design, if the surface of the prism part 2 becomes dirty, the user can open the sealing cover 62 on the filling port 61 to inspect and clean the prism part 2, improving the convenience of maintenance and allowing users to perform self-maintenance.

[0071] In summary, the detergent dispenser of this embodiment not only improves the accuracy of detergent level detection, but also enhances the long-term stability and reliability of the overall liquid level measurement component.

[0072] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0073] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0074] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0075] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A liquid level detection component suitable for a detergent dispenser, characterized in that, include: A light-transmitting component includes a carrier portion and a prism portion integrally formed from a transparent material; wherein a recessed receiving cavity is formed on one side end of the carrier portion; and A photoelectric sensor, which is suitable for partial assembly in a housing cavity, with the transmitting and receiving ends of the photoelectric sensor facing the prism section.

2. The liquid level detection component for a detergent dispenser according to claim 1, characterized in that, The prism section is located on the side of the carrier section facing away from the receiving cavity; the prism section is a triangular prism.

3. The liquid level detection assembly for a detergent dispenser according to claim 1 or 2, characterized in that, The photoelectric sensor and the carrier are also provided with a concave-convex fitting assembly and positioning structure.

4. The liquid level detection component for a detergent dispenser according to claim 3, characterized in that, The assembly positioning structure includes at least one positioning post protruding from the carrier part and at least one positioning hole corresponding to the photoelectric sensor, suitable for one-to-one insertion of the positioning post.

5. A detergent dispenser, characterized in that, include: A housing having a liquid storage chamber and a liquid level detection assembly for a detergent dispenser as described in any one of claims 1 to 4, disposed within the liquid storage chamber; in The outer shell includes a shell body for forming a liquid storage cavity and a shell cover plate for sealing the liquid storage cavity; The housing body is provided with a mounting portion; the mounting portion has a mounting cavity for assembling the liquid level detection component suitable for the detergent dispenser; The mounting part is located above the bottom wall of the liquid storage chamber corresponding to the liquid distribution state at the detergent dispenser, and the mounting part has an opening that connects the mounting chamber and the liquid storage chamber and is suitable for the prism part of the liquid level detection component to extend out. When the liquid level detection component is assembled into the mounting part, the tip of the prism is separated from the bottom wall of the liquid storage chamber corresponding to the detergent dispenser in use.

6. The detergent dispenser according to claim 5, characterized in that, When the liquid level detection component is assembled into the mounting part, the tip of the prism part is spaced 3-6 mm away from the bottom wall of the liquid storage chamber corresponding to the detergent dispenser in use.

7. The detergent dispenser according to claim 5 or 6, characterized in that, The side wall of the shell cover is provided with a liquid inlet that connects to the liquid storage chamber; When the liquid level detection component is assembled into the mounting part, the prism part is located in the orthographic projection area of ​​the liquid inlet on the housing body so as to be able to view the prism part through the liquid inlet.

8. The detergent dispenser according to claim 5 or 6, characterized in that, An annular limiting wall is provided inside the mounting cavity and on the inner side of the opening; and The carrier part is sealed to the limiting wall by a sealing ring.

9. The detergent dispenser according to claim 7, characterized in that, The outer side wall of the shell body is recessed towards the liquid storage cavity to form the mounting cavity.

10. The detergent dispenser according to claim 5 or 6, characterized in that, The mounting cavity is also equipped with a limiting structure for locking the liquid level detection component.

11. The detergent dispenser according to claim 10, characterized in that, The limiting structure includes a first limiting platform provided in the mounting cavity, which is adapted to abut against the outer wall of the carrier portion, and a pair of elastic hooks adapted to abut against the outer wall of the photoelectric sensor.

12. The detergent dispenser according to claim 11, characterized in that, Each of the aforementioned resilient hooks includes a fixed end connected to the inner wall of the mounting cavity, and a resilient hook arm that is bent and connected to the fixed end.

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