CN113136701B

CN113136701B - Clothes treating apparatus

Info

Publication number: CN113136701B
Application number: CN202010051027.9A
Authority: CN
Inventors: 刘庆博; 王萧峰; 孔韵涛
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2023-12-22
Anticipated expiration: 2040-01-17
Also published as: CN113136701A

Abstract

The embodiment of the application provides a clothes treatment device. The laundry treating apparatus includes an outer tub, and a tuning liquid column-shaped vibration absorber provided to the outer tub. The tuning liquid column-shaped vibration absorber comprises a container and liquid arranged in the container, and an included angle is formed between the plane where the flow path of the liquid is located and the central axis of the outer cylinder. Compared with the prior art, the clothes treatment device provided by the embodiment of the application can utilize the flow of the liquid in the tuned liquid column vibration absorber to reduce the vibration of the clothes treatment device. In particular, an included angle is arranged between the plane where the flow path of the liquid is located and the central axis of the outer cylinder, so that the flow direction of the liquid in the tuned liquid column type vibration absorber corresponds to the vibration direction of the outer cylinder, and a good vibration reduction effect is achieved.

Description

Clothes treating apparatus

Technical Field

The invention relates to the technical field of electric appliances, in particular to clothes treatment equipment.

Background

With the continuous improvement of the environmental quality requirements of people, the problems of vibration, noise and the like generated by electric appliances are more and more paid attention to. Especially for clothes treatment equipment, the problems of overlarge vibration, overlarge noise, even the impact of the outer cylinder on the box body and the like often exist, and the usability and the use experience are seriously affected.

Disclosure of Invention

An object of an embodiment of the present invention is to overcome the disadvantages of the related art and to provide an improved laundry treating apparatus.

The clothes treatment equipment provided by the embodiment of the invention comprises: an outer cylinder; a tuning liquid column absorber provided on the outer cylinder; the tuning liquid column-shaped vibration absorber comprises a container and liquid arranged in the container, and an included angle is formed between the plane where the flow path of the liquid is located and the central axis of the outer cylinder.

Optionally, the outer barrel has a central axis that is horizontal or inclined relative to the horizontal.

Optionally, the included angle is greater than 0 degrees and less than 180 degrees.

Optionally, the method further comprises: a case body provided outside the outer cylinder; and the elastic damping component is connected with the outer cylinder and the box body and enables the outer cylinder to be suspended in the box body.

Optionally, the container comprises a cylindrical cavity adapted to contain a liquid, the cavity having a first section at the bottom in the vertical direction and higher second and third sections on either side of the first section, respectively, the liquid filling the cross section of the first section, and a void for the liquid to flow back and forth being left over the second and third sections, respectively.

Optionally, the cavity comprises an O-shaped cavity, a U-shaped cavity, a concave cavity, a V-shaped cavity, or a W-shaped cavity.

Optionally, the cavity has a centre line of symmetry which lies in the same vertical plane as the centre axis of the outer barrel.

Optionally, the container has an arcuate or annular configuration that mates with the outer circumference of the outer barrel, the cavity being located within the arcuate or annular configuration.

Alternatively, the arcuate structure or the annular structure is coaxially disposed with the outer barrel.

Optionally, the tuning liquid column vibration absorber further comprises a blocking portion disposed in the cavity, the blocking portion being adapted to increase the resistance to flow of liquid in the cavity and to match the frequency range of the tuning liquid column vibration absorber to the vibration frequency range of the laundry treating device.

Optionally, the blocking portion comprises a baffle plate having a through hole, an edge of the baffle plate engaging a side wall of the cavity.

Optionally, the stop includes a stop that engages a portion of the sidewall of the cavity and forms a gap with other portions of the sidewall.

Optionally, the barrier is located within the first section of the cavity.

Compared with the prior art, the technical scheme of the embodiment of the invention has the beneficial effects. For example, an included angle is formed between the plane where the flow path of the liquid in the tuning liquid column vibration absorber is located and the central axis of the outer cylinder, so that the flow direction of the liquid in the tuning liquid column vibration absorber corresponds to the vibration direction of the outer cylinder, and a good vibration reduction effect is achieved.

For example, the liquid column heights of the second section and the third section in the tuned liquid column absorber can be adjusted to enable the vibration absorption frequency of the tuned liquid column absorber to be equal to or close to the vibration frequency of the outer cylinder, so that the tuned liquid column absorber can well absorb vibration and noise of the outer cylinder.

For another example, the blocking part is arranged in the tuning liquid column vibration absorber, so that not only can the damping be increased, but also the vibration absorption frequency of the tuning liquid column vibration absorber can be widened, and the tuning liquid column vibration absorber can better absorb vibration and noise of the outer cylinder.

For another example, a plurality of tuning liquid column absorbers may be set according to the operation rotation speed of the inner cylinder in different operation modes, and each tuning liquid column absorber corresponds to a different operation rotation speed, so that the laundry treatment apparatus may perform vibration reduction and noise reduction through the corresponding tuning liquid column absorber in each different operation mode.

For another example, the tuning liquid column vibration absorber provided by the embodiment of the invention has the characteristics of simple structure, easy installation and the like, and the structure of the existing clothes treatment equipment is not required to be changed in the installation process.

Drawings

Fig. 1 is a schematic view showing the construction of a laundry treating apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating a structure of another laundry treating apparatus in an embodiment of the present invention;

FIG. 3 is a schematic partial perspective view of a tuned liquid column absorber in accordance with an embodiment of the present invention; wherein the central axis l of the outer cylinder and the plane S in which the flow path of the liquid is located are shown;

FIG. 4 is a schematic partial perspective view of another tuned liquid column absorber in an embodiment of the invention;

FIG. 5 is a schematic partial perspective view of a third tuned liquid column absorber in an embodiment of the invention;

FIG. 6 is a schematic structural view of a fourth tuned liquid column absorber in an embodiment of the present invention;

fig. 7 is a schematic partial perspective view of a fifth tuned liquid column absorber in an embodiment of the invention.

Detailed Description

As described in the background art, the laundry treatment apparatus often has problems of excessive vibration, excessive noise, even impact of the outer tub on the cabinet, and the like, seriously affecting the usability and the use experience thereof.

In order to solve the above technical problems, embodiments of the present invention provide an improved laundry treating apparatus. The laundry treating apparatus includes an outer tub, and a tuning liquid column-shaped vibration absorber provided to the outer tub. The tuning liquid column-shaped vibration absorber comprises a container and liquid arranged in the container, and an included angle is formed between the plane where the flow path of the liquid is located and the central axis of the outer cylinder.

Compared with the prior art, the clothes treatment equipment provided by the embodiment of the invention can reduce vibration of the clothes treatment equipment by utilizing the flow of the liquid in the tuned liquid column vibration absorber. In particular, an included angle is arranged between the plane where the flow path of the liquid is located and the central axis of the outer cylinder, so that the flow direction of the liquid in the tuned liquid column type vibration absorber corresponds to the vibration direction of the outer cylinder, and a good vibration reduction effect is achieved.

In the technical solution provided in the embodiments of the present invention, the laundry treatment apparatus may include both a drum-type laundry treatment apparatus and a pulsator-type laundry treatment apparatus.

Specifically, the laundry treating apparatus of both forms may include an outer tub, an inner tub, and a driving system. The inner cylinder is arranged in the outer cylinder and can rotate relative to the outer cylinder under the drive of the driving system. The force generated by the rotation of the inner cylinder can be transmitted to the outer cylinder and cause vibration of the outer cylinder.

In order to make the objects, features and advantages of the embodiments of the present invention more comprehensible, the following detailed description of the embodiments of the present invention refers to the accompanying drawings.

For convenience of description of the laundry treating apparatus provided in the embodiment of the present invention, three directions, i.e., up, right, and rear, are illustrated in some drawings provided in the embodiment of the present invention, which are determined based on a view angle of a user facing the laundry treating apparatus in a normal use state. Wherein "rear" represents a direction in which the laundry treating apparatus is away from the user side; other directions including "up", "right", "down", "left", "front" are determined according to the natural orientation division based on the aforementioned "rear" direction. It should be understood that there may be up, down, left, right, front, and rear directions corresponding to the respective viewing angles, as viewed from other viewing angles of the laundry treating apparatus; the up, down, left, right, front and rear directions illustrated in some drawings provided in the embodiments of the present invention are only for convenience in describing the technical solutions of the embodiments of the present invention, and do not constitute a limiting explanation of these solutions.

In addition, it should be further noted that, the drawings provided in the embodiments of the present invention, especially the partial perspective schematic diagrams, are only used to facilitate and clearly assist in understanding the technical solutions provided in the embodiments of the present invention, and are not limitations or restrictions on the technical solutions provided in the embodiments of the present invention.

FIG. 1 is a schematic view of a clothing processing apparatus according to an embodiment of the present invention; fig. 2 is a schematic view of another construction of a garment treatment apparatus according to an embodiment of the present invention.

As shown in fig. 1 and 2, the laundry treating apparatus 10 includes an outer tub 100, an inner tub 200, and a tuning liquid column absorber 300. Wherein the inner cylinder 200 is rotatably disposed in the outer cylinder 100, and the tuning liquid column absorber 300 is disposed on the outer cylinder 100.

In one or more embodiments, the laundry treating apparatus 10 may be of a drum type, the outer drum 100 of which has a central axis l that is horizontal or inclined with respect to the horizontal direction.

Tuned liquid column absorber 300 is a dynamic vibration absorber. The dynamic vibration absorbing apparatus is an apparatus for absorbing vibration energy of an object by using a resonance system to reduce the vibration of the object, and is based on the principle that the resonance system is attached to the object, and the vibration of the object is reduced by using a reaction force generated by the resonance system at the time of resonance. For tuned liquid column vibration absorber 300, it is mainly to use the power generated by the liquid during flow to reduce vibration of the object.

Fig. 3 is a schematic partial perspective view of a tuned liquid column absorber in an embodiment of the invention, wherein the central axis l of the outer cylinder and the plane S in which the flow path of the liquid lies are shown.

As shown in fig. 3, the tuned liquid column absorber 300 includes a vessel 310 and a liquid 320 disposed within the vessel 310.

In one or more embodiments, the liquid 320 may include water, silicone oil, or glycerin.

For tuned liquid column vibration absorber 300, liquid 320 can flow within container 310 with plane S in which the flow path of liquid 320 lies at an angle θ to the central axis l of outer cylinder 100.

In general, the angle between a plane and an axis may be either acute or obtuse.

In the technical solution provided in the embodiment of the present invention, the included angle θ between the plane S where the flow path of the liquid 320 is located and the central axis l of the outer cylinder 100 is in a range of greater than 0 degrees and less than 180 degrees. In other words, the plane S in which the flow path of the liquid 320 is located is not parallel to the central axis l of the outer cylinder 100.

Generally, the outer tub 100 and the inner tub 200 of the laundry treating apparatus 10 may be coaxially disposed therebetween and have a common central axis l. The inner cylinder 200 rotates around the central axis l and transmits a force generated by the rotation thereof to the outer cylinder 100, thereby causing vibration of the outer cylinder 100. In this way, the vibration direction of the outer cylinder 100 tends to be non-parallel to the central axis l thereof.

In the technical solution provided in the embodiment of the present invention, the plane S where the flow path of the liquid 320 is located is set to be non-parallel to the central axis l of the outer cylinder 100, so that the flow direction of the liquid 320 better corresponds to the vibration direction of the outer cylinder 100, and the tuned liquid cylindrical absorber 300 is effectively utilized to perform vibration reduction and noise reduction on the outer cylinder 100.

In one or more preferred embodiments, the angle θ between the plane S in which the flow path of the liquid 320 lies and the central axis l of the outer cylinder 100 may be 90 degrees. In other words, a space between the plane S in which the flow path of the liquid 320 is located and the central axis l of the outer cylinder 100 may be vertically provided.

Since the outer tub 100 and the inner tub 200 of the laundry treating apparatus 10 have a common central axis l about which the inner tub 200 can rotate when coaxially disposed therebetween, vibrations of the outer tub 100 due to the rotation of the inner tub 200 often occur in a plane perpendicular to the central axis l of the outer tub 100.

In the technical solution provided in the embodiment of the present invention, the plane S where the flow path of the liquid 320 is located is perpendicular to the central axis l of the outer cylinder 100, so that the vibration absorption efficiency of the tuned liquid column type vibration absorber 300 can be improved, and the power generated by the flow of the liquid 320 in the container 310 can be effectively utilized to reduce the vibration of the outer cylinder 100.

By adopting the technical scheme provided by the embodiment of the invention, not only can the outer cylinder 100 be damped and noise reduced by utilizing the tuned liquid cylindrical vibration absorber 300, but also the vibration absorption efficiency of the tuned liquid cylindrical vibration absorber 300 can be improved, so that the resources are saved, the cost is saved and the environmental quality is improved.

fig. 5 is a schematic partial perspective view of a third tuned liquid column absorber in an embodiment of the invention.

Referring to fig. 3 to 5, in the solution provided by the embodiment of the present invention, the container 310 may comprise a cylindrical cavity 330 adapted to contain the liquid 320.

Specifically, the cavity 330 has a first section 331 located at the bottom of the container 310 in the vertical direction, and a second section 332 and a third section 333 located at both sides of the first section 331 and higher, respectively. The liquid 320 fills the cross-section of the first section 331 and extends longitudinally into the second and third sections 332, 333, leaving a void 334 above the second and third sections 332, 333, respectively, for the liquid 320 to reciprocate.

In implementations, the cavity 330 may have a different shape. For example, cavity 330 may be an O-shaped cavity (as shown in fig. 3), a U-shaped cavity (as shown in fig. 4), a concave cavity (as shown in fig. 5), a V-shaped cavity, or a W-shaped cavity.

In one or more embodiments, the cavity 330 has a center line of symmetry that may lie in the same vertical plane as the center axis l of the outer barrel.

In other preferred embodiments, the centre line of symmetry may also coincide with the centre axis l of the outer cylinder. In this way, it is ensured that the plane S in which the flow path of the liquid 320 is located is disposed perpendicularly to the central axis l of the outer cylinder 100.

Referring to fig. 3-5, in one or more embodiments, the container 310 may have a shape that mates with the cavity 330.

Fig. 6 is a schematic structural view of a fourth tuning liquid column absorber in an embodiment of the present invention.

Referring to fig. 1-4 and 6, in other embodiments, the container 310 may also have an arcuate or annular configuration that mates with the outer circumference of the outer cartridge 100, with the cavity 330 being located within the arcuate or annular configuration.

In one or more preferred embodiments, the arcuate or annular configuration of the container 310 is disposed coaxially with the outer cartridge 100. In this way, it is possible to facilitate the vertical arrangement between the plane S in which the flow path of the liquid 320 in the container 310 is located and the central axis l of the outer cylinder 100.

In the specific example shown in fig. 1, the tuning liquid column absorber 300 may be sleeved on the front end of the outer cylinder 100 through the annular structure of the container 310 thereof.

In one or more embodiments, the container 310 and the front end of the outer barrel 100 can be coupled together in a male-female manner.

In the specific example shown in fig. 2 and 6, the tuning liquid column absorber 300 may be integrally fitted over the outer circumference of the outer cylinder 100 by the annular structure of the container 310 thereof.

In one or more embodiments, the annular structure of the container 310 can have an inner peripheral profile that mates with the outer peripheral profile of the outer cartridge 100. In this way, the container 310 can be stably fitted over the outer circumference of the outer cylinder 100 by its ring-shaped structure.

In the specific example shown in fig. 4, the tuning liquid column absorber 300 may be sleeved on the front end or the outer periphery of the outer cylinder 100 by an arc-shaped structure of its container 310.

In the specific example shown in fig. 5, the tuning liquid column absorber 300 may be provided at the top or bottom of the outer tub 100.

Referring to fig. 3 and 7, the tuning liquid column vibration absorber 300 further includes a blocking portion 340 disposed in the cavity 330, the blocking portion 340 being adapted to increase resistance to flow of the liquid 320 in the cavity 330 and match a frequency range of the tuning liquid column vibration absorber 300 to a vibration frequency range of the laundry treating device 10.

The blocking part 340 is provided in the cavity 330, not only damping can be increased, but also the vibration absorption frequency of the tuned liquid column vibration absorber 300 can be widened, so that the tuned liquid column vibration absorber 300 can better damp vibration and noise of the outer cylinder 100.

Referring to fig. 3, in one or more embodiments, the barrier 340 may include a baffle plate having a through hole 341, the edge of the baffle plate being fully engaged with the inner sidewall of the cavity 330, the through hole 341 being adapted for the flow of the liquid 320 therethrough.

Referring to fig. 7, in other embodiments, the barrier 340 may include a stop that engages a portion of the interior sidewall of the cavity 330 and forms a gap with other portions of the interior sidewall of the cavity 330 that is suitable for the flow of the liquid 320 therethrough.

With continued reference to fig. 3 and 7, in some preferred embodiments, the stop 340 is located within the first section 331 of the cavity 330.

In an ideal state, for the laundry treating apparatus 10, the vibration frequency F of the outer drum 100 thereof has the following relationship with the rotation speed v of the inner drum 200:

F＝v/60。

in an ideal state, for the tuned liquid column absorber 300, the vibration absorption frequency f thereof has the following relationship with the liquid column heights h of the second and third sections 332, 333:

where g is the gravitational acceleration.

In order to achieve a preferable vibration absorbing effect, f=f may be calculated, the liquid column heights h of the second and third sections 332, 333 may be calculated, and the liquid column heights h of the second and third sections 332, 333 may be adjusted to make the vibration absorbing frequency F of the tuned liquid column absorber 300 equal to or close to the vibration frequency F of the outer tube 100. In this way, the tuned liquid column absorber 300 can be made to perform good vibration and noise reduction of the outer cylinder 100.

In a specific implementation, the influence of the total mass of the liquid 320, the pipe diameters of the second section 332 and the third section 333, the aperture of the baffle plate or the size of the baffle plate on the vibration reduction effect needs to be considered. The specific effect can be obtained by a related experiment. In view of the fact that the related experiments are common knowledge in the field of tuned liquid column vibration absorbers, no further description is given here.

In one or more embodiments, the laundry treating apparatus 10 may arrange the plurality of tuning liquid column absorbers 300 according to the operation rotational speeds of the inner tub 200 in different operation modes, and make each tuning liquid column absorber 300 correspond to a different operation rotational speed. In this way, the laundry treating apparatus 10 can be made to perform vibration damping and noise reduction by the corresponding tuned liquid column vibration absorber 300 in different operation modes.

In the technical solution provided in the embodiment of the present invention, the laundry treating apparatus 10 further includes a case disposed outside the tub 100 and not in direct contact with the tub 100. The arrangement of the case is conventional in the art and will not be described in detail herein.

Referring to fig. 1 and 2, the laundry treating apparatus 10 further includes an elastic damping assembly 400. The two ends of the elastic damping assembly 400 are respectively connected to the outer cylinder 100 and the box body, and the outer cylinder 100 is suspended in the box body.

In some preferred embodiments, the elastic damping assembly 400 may be provided with two sets. One set is disposed at the upper left of the outer tub 100, and the other set is disposed at the upper right of the outer tub 100. The elastic damping assembly 400 located at the upper left of the outer tub 100 includes an upper left end and a lower right end, the lower right end of which is connected to the upper left end of the outer tub 100, and the upper left end of which is connected to the left inner sidewall of the case. The elastic damping assembly 400 located at the upper right side of the outer tub 100 includes an upper right end and a lower left end, the lower left end of which is connected to the upper right end of the outer tub 100, and the upper right end of which is connected to the right inner sidewall of the case.

In implementations, the elastic damping assembly 400 may include a hook 410 and an elastic member 420. The hook 410 and the elastic member 420 are connected to each other through one end thereof, and the other end of the hook 410 is connected to the case; the other end of the elastic member 420 is connected to the outer cylinder 100. The elastic member 420 may employ a spring.

In the technical solution provided in the embodiment of the present invention, the laundry treating apparatus 10 further includes a vibration damping support 500 provided at the bottom of the tub 100. One end of the vibration damping support 500 is connected to the bottom of the outer tub 100, and the other end thereof is connected to the inner bottom wall of the cabinet.

In some preferred embodiments, the shock mount 500 may be provided with two. One of the damper supports 500 is disposed obliquely leftward and downward with respect to the bottom of the outer tub 100, and one of the damper supports 500 is disposed obliquely rightward and downward with respect to the bottom of the outer tub 100.

In particular implementations, shock mount 500 may employ a damped shock absorber as is known in the art.

The clothes treatment device 10 provided by the embodiment of the invention is additionally provided with the elastic damping component 400 and the damping support 500 on the basis of damping by utilizing the tuned liquid column-shaped vibration absorber 300, so that the vibration and noise reduction effects can be further improved.

Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure, even where only a single embodiment is described with respect to a particular feature. The characteristic examples provided in the present disclosure are intended to be illustrative, not limiting, unless stated differently. In practice, the features of one or more of the dependent claims may be combined with the features of the independent claims where technically possible, according to the actual needs, and the features from the respective independent claims may be combined in any appropriate way, not merely by the specific combinations enumerated in the claims.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A laundry treatment apparatus (10), characterized by comprising:

an outer cylinder (100);

an inner cylinder (200) provided in the outer cylinder (100) and rotating with respect to the outer cylinder (100), a force generated by the rotation of the inner cylinder (200) being transmitted to the outer cylinder (100) and causing vibration of the outer cylinder (100);

a tuning liquid column absorber (300) provided on the outer tube (100), the tuning liquid column absorber (300) having a vibration absorption frequency that matches the vibration frequency of the outer tube (100);

the tuning liquid column-shaped vibration absorber (300) comprises a container (310) and liquid (320) arranged in the container (310), wherein a plane (S) where a flow path of the liquid (320) is located and a central axis (l) of the outer cylinder (100) form an included angle (theta).

2. Laundry treatment apparatus (10) according to claim 1, characterized in that the outer tub (100) has a central axis (l) which is horizontal or inclined with respect to the horizontal direction.

3. Laundry treatment apparatus (10) according to claim 1 or 2, characterized in that said included angle (θ) is greater than 0 degrees and less than 180 degrees.

4. Laundry treatment apparatus (10) according to claim 1 or 2, characterized in that it further comprises:

a case provided outside the outer tube (100);

and the elastic damping assembly (400) is connected with the outer cylinder (100) and the box body, and enables the outer cylinder (100) to be suspended in the box body.

5. Laundry treatment device (10) according to claim 1 or 2, characterized in that the container (310) comprises a cylindrical cavity (330) adapted to contain the liquid (320), the cavity (330) having a first section (331) at the bottom in the vertical direction and a second and a third higher section (332, 333) respectively located on both sides of the first section (331), the liquid (320) filling the cross section of the first section (331), and a void (334) for the reciprocal flow of the liquid (320) being left above the second and the third section (332, 333), respectively.

6. The laundry treatment apparatus (10) according to claim 5, characterized in that the cavity (330) comprises an O-shaped cavity, a U-shaped cavity, a concave cavity, a V-shaped cavity or a W-shaped cavity.

7. The laundry treatment apparatus (10) according to claim 5, characterized in that the cavity (330) has a centre line of symmetry, which lies in the same vertical plane as the centre axis of the tub (100).

8. The laundry treatment apparatus (10) according to claim 5, characterized in that the container (310) has an arc-shaped or ring-shaped structure cooperating with the outer periphery of the outer tub (100), the cavity (330) being located within the arc-shaped or ring-shaped structure.

9. The laundry treatment apparatus (10) according to claim 8, characterized in that the arc-shaped structure or the ring-shaped structure is arranged coaxially with the outer tub (100).

10. The laundry treatment apparatus (10) according to claim 5, characterized in that the tuning liquid column absorber (300) further comprises a blocking portion (340) arranged within the cavity (330), the blocking portion (340) being adapted to increase the resistance of the liquid (320) flowing within the cavity (330) and to match the frequency range of the tuning liquid column absorber (300) to the vibration frequency range of the laundry treatment apparatus (10).

11. The laundry treatment apparatus (10) according to claim 10, characterized in that the blocking portion (340) comprises a baffle plate having a through hole (341), the rim of the baffle plate engaging the side wall of the cavity (330).

12. The laundry treatment apparatus (10) according to claim 10, characterized in that the blocking portion (340) comprises a stop engaging a portion of a side wall of the cavity (330) and forming a gap with the other portion of the side wall.

13. The laundry treatment apparatus (10) according to claim 10, characterized in that the barrier (340) is located within the first section (331) of the cavity (330).