CN219908216U - Detergent box assembly - Google Patents

Abstract

The present utility model provides a detergent box assembly comprising: the top wall of the detergent box main body is provided with a mounting opening; the laser liquid level detection module comprises a light-transmitting shell and a PCB (printed circuit board) arranged in the light-transmitting shell, wherein the light-transmitting shell is embedded at the mounting opening and is in sealing connection with the mounting opening. According to the utility model, the mounting opening is formed in the top wall of the detergent box main body, the light-transmitting shell of the laser liquid level detection module is embedded and mounted at the mounting opening, and the mounting opening is sealed by utilizing the light-transmitting shell of the laser liquid level detection module, so that on one hand, the sealing effect of the detergent box main body can be ensured, and on the other hand, an operator can conveniently disassemble and assemble the laser liquid level detection module, the production efficiency of a detergent box assembly can be improved, and the operator can conveniently overhaul and maintain the laser liquid level detection module.

Description

Detergent box assembly

Technical Field

The utility model belongs to the technical field of automatic dispensing equipment, and particularly relates to a detergent box assembly.

Background

With the progress of technology and the improvement of living standard of people, washing apparatuses are becoming popular in user's home, such as washing machines, dish washers, and laundry care machines, etc., and gradually go into each home. The washing equipment is very convenient for the life of the user and reduces the burden of the user.

The traditional washing equipment adopts a manual mode to put in the detergent, namely, before the washing equipment is started, the user is required to manually add the detergent, and the detergent adding mode is not only difficult to control the dosage of the detergent added into the washing equipment every time, but also troublesome in feeding, and seriously influences the use experience of the user.

Recently, some washing devices with automatic throwing devices gradually appear on the market, and a certain amount of detergent is stored in the throwing device in advance by arranging a detergent box on the throwing device, so that the throwing device throws the detergent in the detergent box into washing water during washing to realize an automatic throwing function.

In order to obtain the real-time allowance of the detergent in the detergent box, a laser liquid level detection module is additionally arranged on the detergent box. However, the existing laser liquid level detection module is generally installed inside the detergent box, and the arrangement mode ensures the tightness of the detergent box, but influences the volume of the detergent box, and has higher requirements on the tightness of the laser liquid level detection module, higher sealing cost and difficult maintenance.

Therefore, designing a detergent box assembly which can ensure the tightness of the detergent box and the laser liquid level detection module and can conveniently overhaul and maintain the laser liquid level detection module becomes a technical problem to be solved urgently by those skilled in the art.

The present utility model has been made in view of this.

Disclosure of Invention

The utility model provides a detergent box assembly, which is characterized in that a mounting hole is formed in the top wall of a detergent box main body, and a light-transmitting shell of a laser liquid level detection module is utilized to seal the mounting hole, so that the sealing effect of the detergent box main body can be ensured, an operator can conveniently disassemble, assemble and overhaul the laser liquid level detection module, and the problems that the installation of the laser liquid level detection module influences the volume of the detergent box, the sealing cost is high and overhaul is not facilitated in the existing detergent box assembly are solved.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

a detergent box assembly comprising:

the top wall of the detergent box main body is provided with a mounting opening;

the laser liquid level detection module comprises a light-transmitting shell and a PCB (printed circuit board) arranged in the light-transmitting shell, wherein the light-transmitting shell is embedded at the mounting opening and is in sealing connection with the mounting opening.

Further, the light-transmitting shell is arranged in a groove shape with a notch facing the outer side of the detergent box main body and the shape of the peripheral wall being matched with that of the mounting opening, and at least part of the light-transmitting shell extends into the mounting opening;

the notch periphery of printing opacity shell is provided with the otic placode that radially outwards bulge extends, and printing opacity shell passes through the otic placode and links to each other with the roof of detergent box main part.

Further, still include the sealing washer, the sealing washer sets up between printing opacity shell and installing port, and the printing opacity shell passes through the inner wall elasticity butt of sealing washer and installing port.

Further, the mounting port includes a mounting port body and an extension wall disposed around the mounting port cylinder to extend toward the inside and/or outside of the detergent box body;

the sealing ring is arranged between the light-transmitting shell and the mounting port main body and/or between the light-transmitting shell and the extension wall.

Further, the extension wall extends from the inner edge of the mounting port body to the inner side of the detergent box body;

the outer peripheral wall of the light-transmitting shell comprises a first part with the diameter equal to that of the main body of the mounting opening and a second part which is coaxially arranged at the end part of the first part and has the diameter smaller than that of the main body of the mounting opening; the sealing ring is sleeved on the second part and elastically abutted against the inner wall of the mounting port main body and/or the inner wall of the extension wall;

preferably, the inner wall of the extension wall is provided with a conical surface with gradually reduced diameter from top to bottom; alternatively, the inner wall of the extension wall is provided with an inwardly extending necked-down portion, the necked-down portion being spaced from the first portion by a distance less than or equal to the axial length of the seal ring.

Further, the extension wall extends from the outer periphery of the mounting port to the outside of the detergent box main body, and has an inner diameter larger than the diameter of the mounting port main body;

the outer peripheral wall of the light-transmitting shell comprises a first part with the diameter equal to the inner diameter of the extension wall and a second part which is coaxially arranged at the end part of the first part and has the diameter smaller than or equal to the diameter of the main body of the mounting opening; the sealing ring is sleeved on the second part and elastically abutted with the inner wall of the extension wall;

preferably, the distance between the top wall of the detergent box body and the first part is less than or equal to the axial length of the sealing ring;

it is further preferred that the sealing ring extends at least partially between the second portion and the inner wall of the mounting port body.

Further, the inner periphery and/or the outer periphery of the sealing ring are/is provided with sealing ribs, and the sealing ring is elastically abutted with the outer peripheral wall of the light-transmitting shell and/or the inner wall of the mounting opening through the sealing ribs;

preferably, the sealing rib extends obliquely from the inner wall and/or the outer wall of the sealing ring in a direction opposite to the installation direction of the sealing ring;

preferably, the thickness of the sealing rib gradually decreases from the root to the end.

Further, the PCB is arranged in the light-transmitting shell and is attached to the bottom wall of the light-transmitting shell;

the bottom of PCB board is provided with the laser detection component that is used for transmitting/receiving laser, is provided with on the diapire of printing opacity shell and is used for holding the mounting groove of laser detection component, and the PCB board covers the notch department at the mounting groove, the edge of PCB board and the laminating of printing opacity shell diapire of mounting groove periphery.

Further, be equipped with spacing claw in the cell body of printing opacity shell, spacing claw includes:

the neck part is arranged on the peripheral side of the PCB and extends from the bottom of the light-transmitting shell along the axial direction;

the claw part extends from the end part of the neck part to the axis of the light-transmitting shell along the radial direction, and the distance between the claw part and the bottom of the light-transmitting shell is matched with the thickness of the edge of the PCB;

or the limiting claw extends from the groove wall of the light-transmitting shell to the middle of the light-transmitting shell, and the distance between the limiting claw and the groove bottom of the light-transmitting shell is matched with the thickness of the edge of the PCB.

Further, the method further comprises the following steps:

the guide edges are arranged on the groove walls of the light-transmitting shell and extend along the installation direction of the PCB;

the guide groove is arranged at the edge of the PCB and is in sliding fit with the guide edge.

After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the mounting opening is formed in the top wall of the detergent box main body, the light-transmitting shell of the laser liquid level detection module is embedded and mounted at the mounting opening, and the mounting opening is sealed by utilizing the light-transmitting shell of the laser liquid level detection module, so that on one hand, the sealing effect of the detergent box main body can be ensured, and on the other hand, an operator can conveniently disassemble and assemble the laser liquid level detection module, the production efficiency of a detergent box assembly can be improved, and the operator can conveniently overhaul and maintain the laser liquid level detection module.

2. According to the utility model, the sealing ring is arranged between the detergent box main body and the mounting opening, and the sealing convex edge which is obliquely extended towards the direction opposite to the mounting direction of the sealing ring is arranged on the sealing ring, so that the elastic abutting connection between the sealing ring and the light-transmitting shell and between the sealing ring and the mounting opening can be realized on the premise of ensuring the convenience in mounting, and the sealing effect on the gap between the inner wall of the mounting opening and the peripheral wall of the light-transmitting shell is ensured.

3. According to the utility model, the limit claw is arranged at the bottom of the light-transmitting shell, so that the PCB can be clamped and fixed on the bottom of the light-transmitting shell through the limit claw, the assembly of the laser liquid level detection module is completed, and then the laser liquid level detection module is integrally arranged on the top wall of the detergent box main body, so that the assembly of the detergent box assembly is completed. Through set up the direction arris on the cell wall of printing opacity shell, set up the guide way with its adaptation in the periphery of PCB board, can improve the guidance quality and the positioning effect of PCB installation, make the PCB board can fix a angle the tank bottom department of installing at printing opacity shell.

Meanwhile, the utility model has simple structure and obvious effect, and is suitable for popularization and use.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic view of the top of a detergent box assembly according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an assembled structure of a laser fluid level detection module in accordance with an embodiment of the present utility model;

FIG. 3 is an exploded view of an assembly of a laser level detection module according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of an exploded view of a laser level detection module in an embodiment of the utility model;

FIG. 5 is a diagram illustrating an assembly of a laser level detection module and a seal ring in an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a seal ring in an embodiment of the utility model.

The main elements in the figure are illustrated:

1. a detergent box main body; 11. a mounting port; 111. a mounting port body; 112. an extension wall; 12. a threaded column; 2. a laser liquid level detection module; 21. a light-transmitting housing; 211. a first portion; 212. a second portion; 213. a mounting groove; 214. a limit claw; 2141. a neck; 2142. a claw portion; 215. a guide rib; 216. a light transmitting portion; 217. ear plates; 22. a PCB board; 221. a laser detection element; 222. a guide groove; 3. a seal ring; 31. sealing ribs; 4. and (5) a screw.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 1 to 6, in an embodiment of the present utility model, a detergent box assembly is introduced, which includes a detergent box body 1, and a laser liquid level detection module 2 mounted on the detergent box body 1, the laser liquid level detection module 2 being used to detect a detergent residual amount in the detergent box in real time.

In this embodiment, the detergent box assembly can be used on any washing equipment, for example, the detergent box assembly can be used on a washing machine, a dish washer and a clothes care machine needing to throw detergent. The present embodiment is described by taking a washing machine as an example, but is not limited to the scope of protection.

In this embodiment, the laser liquid level detection module 2 is in communication connection with a control unit of the washing machine, and transmits the detected remaining detergent information to the control unit in real time, and the control unit can control the user to display the remaining detergent information in real time through the display operation interface, and can also control the alarm module to alarm when the remaining detergent is insufficient. Preferably, in this embodiment, the control unit controls the user display operation interface to display the remaining amount of the detergent in the detergent box in real time.

In this embodiment, the top wall of the detergent box main body 1 is provided with a mounting opening 11, the laser liquid level detection module 2 is mounted at the mounting opening 11, the laser detection element 221 of the laser liquid level detection module 2 is perpendicular to the liquid level of the detergent, the laser detection element 221 emits laser to the liquid level of the detergent, then receives the laser reflected by the liquid level, calculates the liquid level through the return time, and thus determines the detergent allowance, and is used for prompting the user when the detergent needs to be added, or displaying the liquid allowance value in the automatic detergent box in real time through the user display operation interface.

In this embodiment, the laser liquid level detection module 2 includes a light-transmitting housing 21, and a PCB board 22 disposed in the light-transmitting housing 21, and the laser detection element 221 for emitting/receiving laser light is disposed on the PCB board 22, and the PCB board 22 is electrically connected with a control unit of the washing machine.

Specifically, the light-transmitting casing 21 of the laser liquid level detection module 2 is installed at the installation opening 11, the light-transmitting casing 21 covers the installation opening 11 and seals the installation opening 11, the PCB board 22 is installed on the light-transmitting casing 21, the laser detection element 221 on the PCB board 22 is arranged on the inner side facing the detergent box main body 1, and at least the part of the light-transmitting casing 21 corresponding to the installation opening 11 is made of light-transmitting material. The light-transmitting material can be PMMA material or transparent glass material.

In this embodiment, the light-transmitting casing 21 is configured as a groove with a notch facing the outside of the detergent box body 1, and the PCB 22 may be mounted in the groove of the light-transmitting casing 21 through any mounting structure, for example, the PCB 22 may be fixed in the groove of the light-transmitting casing 21 through the screw 4, or may be mounted in the groove of the light-transmitting casing 21 through the fastening structure.

Preferably, in this embodiment, the PCB 22 is mounted in the groove of the light-transmitting housing 21 through a clamping structure. Specifically, the PCB 22 is mounted within the housing and is attached to the bottom wall of the housing; the bottom of the PCB 22 is provided with a laser detection element 221 for emitting/receiving laser, the bottom wall of the housing is provided with a mounting groove 213 for accommodating the laser detection element 221, the PCB 22 is covered at the notch of the mounting groove 213, and the edge of the PCB 22 is attached to the bottom wall of the housing at the periphery of the mounting groove 213. The clamping structure is arranged on the groove bottom and/or the groove wall of the light-transmitting shell 21 and is clamped with the edge of the PCB 22, so that the PCB 22 is fixed on the groove bottom of the light-transmitting shell 21.

In this embodiment, the laser detection element 221 on the PCB 22 is disposed opposite to the bottom of the mounting groove 213, and at least the bottom of the mounting groove 213 is made of a light-transmitting material.

Preferably, in this embodiment, the light-transmitting envelope 21 is entirely made of PMMA material,

further preferably, a light transmitting portion 216 corresponding to the laser detection element 221 is provided on the bottom of the mounting groove 213, and the thickness of the light transmitting portion 216 is smaller than the thickness of the bottom of the mounting groove 213 on the peripheral side of the light transmitting portion 216.

In this embodiment, a groove corresponding to the laser detection element 221 is formed at a side of the bottom of the mounting groove 213 away from the PCB 22, and the bottom of the mounting groove 213 corresponding to the bottom of the groove forms the light-transmitting portion 216. In this embodiment, the groove is provided, on one hand, to improve the laser penetration effect, and on the other hand, to prevent the detergent in the detergent box body 1 from sputtering and adhering to the light-transmitting portion 216, to prevent the laser from passing, and to improve the working stability of the laser liquid level detection module 2.

As shown in fig. 2 to 4, in the present embodiment, the locking structure is a limiting claw 214 disposed in the groove of the light-transmitting housing 21.

In some possible embodiments, the limit jaw 214 is disposed on the bottom of the slot of the light-transmitting envelope 21. Specifically, the limiting claw 214 is disposed around the PCB 22, and the limiting plate includes a neck portion 2141 disposed on a peripheral side of the PCB 22 and extending from a bottom of the light-transmitting housing 21 to a slot of the light-transmitting housing 21 in an axial direction, and a claw portion 2142 disposed at an end of the neck portion 2141, the claw portion 2142 extends from the end of the neck portion 2141 to an axial center of the light-transmitting housing 21 in a radial direction, a distance between the claw portion 2142 and the bottom of the light-transmitting housing 21 is adapted to a thickness of an edge of the PCB 22, and the edge of the PCB 22 is clamped between the claw portion 2142 and the bottom of the light-transmitting housing 21.

In other possible embodiments, the limit jaw 214 is provided on a groove wall of the light-transmitting housing 21. Specifically, the limiting claw 214 is disposed around the PCB 22, the limiting claw 214 protrudes from the groove wall of the light-transmitting housing 21 toward the middle of the light-transmitting housing 21, and at least partially extends to the edge of the PCB 22, the distance between the end of the limiting claw 214 and the groove bottom of the light-transmitting housing 21 is adapted to the thickness of the PCB 22, and the edge of the PCB 22 is clamped between the limiting claw 214 and the groove bottom of the light-transmitting housing 21.

Preferably, in this embodiment, the number of the limiting claws 214 is at least two, and the at least two limiting claws 214 are uniformly arranged around the PCB 22.

Preferably, in this embodiment, the limiting claw 214 is disposed on the bottom of the transparent casing 21, and the top of one side of the claw 2142 of the limiting claw 214, which is close to the PCB board 22, is configured as a slope inclined from the notch of the transparent casing 21 to the axis of the transparent casing 21, so as to facilitate the installation of the PCB board 22.

In this embodiment, a limiting structure for limiting the installation angle of the PCB 22 is disposed between the light-transmitting housing 21 and the PCB 22. The limiting structure is a guiding rib 215 and a guiding groove 222 which are matched with each other, and/or the limiting structure is a limiting groove arranged on the inner wall of the groove bottom of the light-transmitting shell 21.

In this embodiment, the guiding ribs 215 are disposed on the groove wall of the light-transmitting housing 21 and extend along the installation direction of the PCB 22, the edge of the PCB 22 is provided with guiding grooves 222 corresponding to the guiding ribs 215, and the guiding grooves 222 are sleeved on the guiding ribs 215 and slide along the guiding ribs 215, so as to ensure the accuracy of the installation angle of the PCB 22.

Preferably, in this embodiment, the light-transmitting housing 21 is configured as a circular groove, the PCB 22 is configured as a square plate, the two limiting claws 214 are respectively corresponding to two opposite edges of the PCB 22, and the two guiding edges 215 are respectively corresponding to two other opposite edges of the PCB 22.

Preferably, in this embodiment, the limiting structure further includes a limiting groove disposed on a bottom of the transparent casing 21, a shape of the limiting groove is adapted to a shape of the PCB 22, a groove depth of the limiting groove is smaller than or equal to a thickness of an edge of the PCB 22, the limiting claw 214 and the guiding rib 215 are disposed around the limiting groove, and the mounting groove 213 is disposed on a bottom of the limiting groove.

Example two

As shown in fig. 1 to 6, in this embodiment, the top wall of the detergent box body 1 is provided with a mounting opening 11, the laser liquid level detection module 2 includes a light-transmitting housing 21, and a PCB 22 mounted in the light-transmitting housing 21, and the light-transmitting housing 21 is embedded in the mounting opening 11 and is connected with the mounting opening 11 in a sealing manner.

In this embodiment, the light-transmitting casing 21 is configured as a groove with a notch facing the outside of the detergent box body 1 and a peripheral wall shape matching the shape of the mounting opening 11, and the light-transmitting casing 21 extends at least partially into the mounting opening 11. The notch periphery of the light-transmitting casing 21 is provided with an ear plate 217 protruding outward in the radial direction, and the light-transmitting casing 21 is connected to the top wall of the detergent box body 1 through the ear plate 217.

Specifically, the ear plates 217 are disposed on the outer peripheral wall of the light-transmitting casing 21, at least two ear plates 217 are uniformly arranged along the circumferential direction of the light-transmitting casing 21, the light-transmitting casing 21 is inserted into the mounting opening 11 from the outer side of the detergent box main body 1, the ear plates 217 are abutted to the top wall of the detergent box main body 1, and the light-transmitting casing 21 is limitedly mounted in the mounting opening 11.

Preferably, the top surface of the ear plate 217 is coplanar with the top surface of the light transmissive envelope 21.

In this embodiment, the ear plate 217 is provided with a mounting hole, the top wall of the detergent box main body 1 is provided with threaded columns 12 corresponding to the ear plate 217 one by one, and the threaded columns 12 are provided with threaded holes. When the light-transmitting shell 21 is installed, the light-transmitting shell 21 is inserted into the installation opening 11, the threaded column 12 is abutted against the lug plate 217, an installation hole on the lug plate 217 corresponds to a threaded hole on the threaded column 12, the screw 4 passes through the installation hole to be connected in the threaded hole, and the lug plate 217 is fixed on the threaded column 12, so that the light-transmitting shell 21 is fixed on the top wall of the detergent box main body 1.

In this embodiment, the screw column 12 may be provided inside the top wall of the detergent box body 1 or outside the top wall of the detergent box body 1.

In this embodiment, a sealing ring 3 is disposed between the light-transmitting housing 21 and the mounting opening 11, and the light-transmitting housing 21 is elastically abutted to the inner wall of the mounting opening 11 through the sealing ring 3, so as to enhance the sealing effect.

As shown in fig. 2 and 4, in the present embodiment, the mounting port 11 includes a mounting port body 111 and an extension wall 112 disposed around the column of the mounting port 11 and extending toward the inside and/or outside of the detergent box body 1, and the seal ring 3 is disposed between the light-transmitting housing 21 and the mounting port body 111 and/or between the light-transmitting housing 21 and the extension wall 112.

In some possible embodiments, as shown in fig. 2 to 5, the extension wall 112 extends from the inner edge of the mounting port body 111 toward the inside of the detergent box body 1. The screw column 12 is provided on the outer periphery of the extension wall 112 and extends from the top wall of the detergent box body 1 to the outside of the detergent box body 1, and the extension length of the screw column 12 is the same as the extension length of the extension wall 112.

In this embodiment, the outer peripheral wall of the light-transmitting housing 21 includes a first portion 211 having a diameter equal to that of the mounting hole body 111, and a second portion 212 coaxially disposed at an end of the first portion 211 and having a diameter smaller than that of the mounting hole body 111, and the sealing ring 3 is sleeved on the second portion 212 and elastically abuts against the inner wall of the mounting hole body 111 and/or the inner wall of the extension wall 112.

Preferably, in this embodiment, the inner wall of the extension wall 112 is configured as a conical surface with a gradually decreasing diameter from top to bottom; alternatively, the inner wall of the extension wall 112 is provided with an inwardly extending constriction at a distance from the first portion 211 that is less than or equal to the axial length of the sealing ring 3. Through the above arrangement, not only the elastic abutment along the radial direction between the outer peripheral wall of the light-transmitting housing 21 and the inner wall of the mounting opening 11 can be realized, but also the elastic abutment along the axial direction between the outer peripheral wall of the light-transmitting housing 21 and the inner wall of the mounting opening 11 can be realized, thereby further improving the sealing effect of the light-transmitting housing 21 to the mounting opening 11.

In other possible embodiments, the extension wall 112 extends from the outer circumference of the mounting opening 11 to the outside of the detergent box body 1, the inner diameter of which is larger than the diameter of the mounting opening body 111, the screw post 12 is disposed at the outer circumference of the extension wall 112 and extends from the top wall of the detergent box body 1 to the inside of the detergent box body 1, and the extension length of the screw post 12 is the same as the extension length of the extension wall 112.

In this embodiment, the outer peripheral wall of the light-transmitting housing 21 includes a first portion 211 having a diameter equal to the inner diameter of the extension wall 112, and a second portion 212 coaxially disposed at an end of the first portion 211 and having a diameter smaller than or equal to the diameter of the mounting hole body 111; the sealing ring 3 is sleeved on the second part 212 and elastically abuts against the inner wall of the extension wall 112.

Preferably, the distance between the top wall of the detergent box body 1 and the first portion 211 is less than or equal to the axial length of the sealing ring 3.

It is further preferred that the sealing ring 3 extends at least partly between the second portion 212 and the inner wall of the mounting port body 111. That is, the sealing ring 3 may be configured in a stepped shape, a large diameter section of the stepped sealing ring 3 is interposed between the outer peripheral wall of the second portion 212 and the inner wall of the extension wall 112, and a small diameter section of the stepped sealing ring 3 is interposed between the outer peripheral wall of the second portion 212 and the inner wall of the mounting port body 111, so as to further enhance the sealing effect.

In this embodiment, the distance between the top wall of the detergent box body 1 and the first portion 211 is less than or equal to the axial length of the large diameter section of the stepped seal ring 3.

Preferably, the diameter of the second portion 212 of the outer peripheral wall of the light-transmitting envelope 21 is gradually reduced in a direction from the first portion 211 to the second portion 212, thereby further facilitating the installation of the light-transmitting envelope 21.

Preferably, as shown in fig. 6, in this embodiment, a sealing rib 31 is provided on the inner periphery and/or the outer periphery of the sealing ring 3, and the sealing ring 3 elastically abuts against the outer peripheral wall of the light-transmitting housing 21 and/or the inner wall of the mounting opening 11 through the sealing rib 31.

Specifically, the sealing ring 3 includes a sealing ring main body and sealing ribs 31 disposed on both inner and outer sides of the sealing ring main body. Preferably, the inner diameter of the seal ring body is equal to the outer diameter of the second portion 212 of the light-transmitting housing 21, and the seal ring body is elastically abutted against the outer peripheral wall of the second portion 212 by a seal bead 31 provided on the inner periphery of the seal ring body. The external diameter of the sealing ring main body is the same as the internal diameter of the mounting opening 11, and the sealing rib 31 on the peripheral wall of the sealing ring main body is elastically abutted with the inner wall of the mounting opening 11.

In this embodiment, the sealing rib 31 extends in the circumferential direction of the seal ring body. Preferably, a plurality of the sealing beads 31 are uniformly arranged in the axial direction of the seal ring body.

Preferably, the sealing rib 31 extends obliquely from the inner wall and/or the outer wall of the sealing ring 3 in a direction opposite to the installation direction of the sealing ring 3, so that the sealing effect on the gap between the inner wall of the installation opening 11 and the peripheral wall of the light-transmitting shell 21 can be ensured by realizing elastic abutting between the sealing ring 3 and the light-transmitting shell 21 and between the sealing ring and the installation opening 11 on the premise of ensuring the installation convenience.

Specifically, the sealing ring 3 is installed in the installation opening 11 from top to bottom, and the sealing rib 31 on the outer peripheral wall of the sealing ring body extends obliquely upward from the root to the end. The light-transmitting shell 21 is inserted into the mounting opening 11 from top to bottom, which is equivalent to that the sealing ring 3 is sleeved on the light-transmitting shell 21 from bottom to top, and the sealing convex rib 31 on the inner periphery of the sealing ring main body extends from the root part to the end part in a downward inclined way. Thereby, the installation of the seal ring 3 is made smoother.

Further preferably, in the present embodiment, the thickness of the sealing rib 31 is gradually reduced from the root portion to the end portion, thereby further improving the convenience of installation.

Preferably, in this embodiment, a reflective block may be further disposed in the detergent box main body 1, the reflective block being disposed corresponding to the laser detection element 221, and the reflective block being capable of floating with the change in the detergent liquid level. By providing the light-reflecting block, the working stability of the laser liquid level detection module 2 can be further improved.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by equivalent embodiments within the scope of the technical proposal of the present utility model without departing from the scope of the technical proposal of the present utility model.

Claims (10)

1. A detergent box assembly, comprising:

a detergent box main body (1), a top wall of which is provided with a mounting opening (11);

the laser liquid level detection module (2) comprises a light-transmitting shell (21) and a PCB (22) arranged in the light-transmitting shell (21), wherein the light-transmitting shell (21) is embedded in the mounting opening (11) and is in sealing connection with the mounting opening (11).

2. The detergent box assembly as claimed in claim 1, wherein,

the light-transmitting shell (21) is arranged in a groove shape with a notch facing the outer side of the detergent box main body (1) and the shape of the peripheral wall being matched with that of the mounting opening (11), and the light-transmitting shell (21) at least partially extends into the mounting opening (11);

the periphery of the notch of the light-transmitting shell (21) is provided with an ear plate (217) which protrudes outwards in the radial direction, and the light-transmitting shell (21) is connected with the top wall of the detergent box main body (1) through the ear plate (217).

3. The detergent box assembly according to claim 2, further comprising a sealing ring (3), wherein the sealing ring (3) is arranged between the light-transmitting housing (21) and the mounting opening (11), and the light-transmitting housing (21) is elastically abutted against an inner wall of the mounting opening (11) through the sealing ring (3).

4. A detergent box assembly as claimed in claim 3, wherein,

the mounting port (11) comprises a mounting port main body (111) and an extension wall (112) which is arranged around the column of the mounting port (11) and extends to the inner side and/or the outer side of the detergent box main body (1);

the sealing ring (3) is arranged between the light-transmitting shell (21) and the mounting opening main body (111) and/or between the light-transmitting shell (21) and the extension wall (112).

5. A detergent box assembly according to claim 4, characterized in that the extension wall (112) extends from the inner edge of the mounting mouth body (111) towards the inside of the detergent box body (1);

the outer peripheral wall of the light-transmitting housing (21) comprises a first part (211) with the diameter equal to that of the mounting port main body (111), and a second part (212) which is coaxially arranged at the end part of the first part (211) and has the diameter smaller than that of the mounting port main body (111); the sealing ring (3) is sleeved on the second part (212) and elastically abuts against the inner wall of the mounting port main body (111) and/or the inner wall of the extension wall (112).

6. A detergent box assembly according to claim 4, characterized in that the extension wall (112) extends from the outer periphery of the mounting opening (11) to the outside of the detergent box body (1), and has an inner diameter larger than the diameter of the mounting opening body (111);

the outer peripheral wall of the light-transmitting housing (21) comprises a first part (211) with the diameter equal to the inner diameter of the extension wall (112), and a second part (212) coaxially arranged at the end part of the first part (211) and with the diameter smaller than or equal to the diameter of the mounting port main body (111); the sealing ring (3) is sleeved on the second part (212) and elastically abuts against the inner wall of the extension wall (112).

7. A detergent box assembly as claimed in any one of claims 3 to 6, wherein,

the inner periphery and/or the outer periphery of the sealing ring (3) are/is provided with sealing ribs (31), and the sealing ring (3) is elastically abutted with the outer peripheral wall of the light-transmitting shell (21) and/or the inner wall of the mounting opening (11) through the sealing ribs (31).

8. A detergent box assembly according to any one of claims 2 to 6, characterised in that the PCB board (22) is mounted inside the light-transmissive casing (21) in abutment with the bottom wall of the light-transmissive casing (21);

the bottom of PCB board (22) is provided with laser detection component (221) that are used for transmitting/receiving laser, is provided with on the diapire of printing opacity shell (21) with be used for holding mounting groove (213) of laser detection component (221), and PCB board (22) cover is in the notch department of mounting groove (213), and the edge of PCB board (22) is laminated with printing opacity shell (21) diapire of mounting groove (213) periphery.

9. The detergent box assembly according to claim 8, wherein a limiting claw (214) is provided in the groove body of the light-transmitting casing (21), and the limiting claw (214) comprises:

the neck (2141) is arranged on the peripheral side of the PCB (22) and extends from the bottom of the light-transmitting shell (21) along the axial direction;

a claw portion (2142) extending from the end of the neck portion (2141) to the axis of the light-transmitting shell (21) along the radial direction, wherein the distance between the claw portion (2142) and the bottom of the light-transmitting shell (21) is matched with the thickness of the edge of the PCB (22);

or the limiting claw (214) extends from the groove wall of the light-transmitting shell (21) to the middle of the light-transmitting shell (21), and the distance between the limiting claw (214) and the groove bottom of the light-transmitting shell (21) is matched with the thickness of the edge of the PCB (22).

10. The detergent box assembly of claim 9, further comprising:

the guide edges (215) are arranged on the groove walls of the light-transmitting shell (21) and extend along the installation direction of the PCB (22);

and the guide groove (222) is arranged at the edge of the PCB (22) and is in sliding fit with the guide rib (215).