CN115468355A

CN115468355A - Refrigerator

Info

Publication number: CN115468355A
Application number: CN202110656586.7A
Authority: CN
Inventors: 李奎宝; 高青梅; 王海盈
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-12-13
Anticipated expiration: 2041-06-11
Also published as: CN118189522A; CN118189521A; CN118129376A; CN118066770A; CN115468355B

Abstract

The invention provides a refrigerator, which comprises an exciter; a case for storing articles; the box body comprises a heat insulation layer, a first shell and a second shell, wherein the first shell and the second shell are respectively positioned on the inner side and the outer side of the heat insulation layer; the orientation of heat preservation one side of second casing is formed with the protection chamber, second casing closing cap the opening in protection chamber, the exciter is located the protection intracavity, just the exciter with the second casing links to each other for drive the vibration of second casing and generate the sound wave. The refrigerator provided by the invention has good sealing and waterproof performances, and the sound emitted by the refrigerator has a larger sound pressure level and a flatter frequency response.

Description

Refrigerator with a door

Technical Field

The invention relates to the technical field of sound production equipment, in particular to a refrigerator.

Background

The refrigerator is a daily electric appliance commonly used in life of people and is used for keeping food or other articles in a constant low-temperature state.

The refrigerator includes the heat preservation and sets up first casing, the second casing in the inside and outside both sides of heat preservation, and the heat preservation is used for making the inside temperature of refrigerator maintain predetermineeing the within range, and first casing pastes and establishes on the heat preservation internal face to enclose into the storing district of holding food etc. the second casing pastes and establishes outside the heat preservation, is used for forming the protection to the refrigerator. The refrigerator also comprises a display panel and a loudspeaker, wherein the loudspeaker is connected with the display panel or a second shell, a sound outlet hole penetrating through the second shell is formed in the second shell, and sound emitted by the loudspeaker can be transmitted through the sound outlet hole so that a user can listen to the sound or voice interaction between the user and the refrigerator can be realized.

However, the sound outlet hole is exposed in the air, and the dustproof and waterproof functions of the loudspeaker cannot be realized.

Disclosure of Invention

In view of the above problems, embodiments of the present invention provide a refrigerator having high sealing performance, and the sound emitted from the refrigerator has a high sound pressure level and a flat frequency response.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

an embodiment of the present invention provides a refrigerator, which includes an exciter; a case for storing articles; the box body comprises a heat insulation layer, a first shell and a second shell, wherein the first shell and the second shell are respectively positioned on the inner side and the outer side of the heat insulation layer; the orientation of heat preservation one side of second casing is formed with the protection chamber, second casing closing cap the opening in protection chamber, the exciter is located the protection intracavity, just the exciter with the second casing links to each other, is used for driving the vibration of second casing and generating the sound wave.

Wherein, drive the third casing sound production through the exciter, do not set up out the sound hole on the third casing, the exciter does not expose in the air, and the leakproofness of third casing is better, has good dustproof and waterproof performance. Meanwhile, the third shell generates sound by surface vibration, and the sound generated by the refrigerator has relatively flat frequency response.

In some embodiments, the refrigerator further comprises: the first shell and the third shell are respectively attached to the inner side and the outer side of the heat-insulating layer; and one end of the elastic piece is connected with the third shell, the other end of the elastic piece is connected with the second shell, and when the third shell vibrates, the elastic piece can elastically deform along the vibration direction of the third shell.

That is, the first case and the third case constitute a cabinet of the refrigerator, and the third case is a separate component from the cabinet. And the second casing passes through the elastic component and links to each other with the box, and second casing quality and elastic component compliance constitute resonance system, and system resonance can promote low frequency section acoustic response, promotes the low frequency effect.

In some embodiments, the protection cavity is disposed in the elastic member, the protection cavity penetrates through both ends of the elastic member in a vibration direction of the second housing, the second housing and the third housing respectively cover ports at both ends of the elastic member, and the exciter is located in the protection cavity. Thus, the exciter can be protected, and foreign matters such as water, dust, flock and the like are prevented from being accumulated on the exciter.

In some embodiments, the elastic member is bent in the vibration direction of the second housing, so that the elastic member can have a larger expansion amount in the vibration direction of the second housing, the elastic member has a larger compliance range, and the sound emitted by the second housing has a better low-frequency effect.

In some embodiments, the surface of the elastic member has an adhesive surface, and the second housing and the third housing are respectively adhered and fixed to the elastic member, so that the fixing stability is high, the assembly is easy, and the cost is low.

In some embodiments, the resilient member is an air permeable member. Like this, the gas in the protection intracavity can circulate each other with the gas outside the protection intracavity, and the air resistance that receives when the second casing vibrates is less, and the vibration range of second casing is great, and the sound that the refrigerator was sent has great sound pressure level.

In some embodiments, the second housing includes a second housing body and a damping layer, the second housing body and the damping layer are attached to each other, and the damping of the damping layer is greater than the damping of the second housing body. Therefore, the damping of the second shell can be increased, and the influence on the hearing feeling caused by obvious frequency response peak valley caused by resonance at the resonance frequency due to over-small internal damping of the second shell is avoided.

In some embodiments, a foaming cavity is formed in the second shell body, and the damping layer is filled in the foaming cavity. The strength of the second housing is higher.

In some embodiments, the second housing has a resonance position, and when the actuator vibrates the third housing, the resonance position of the second housing resonates with the actuator; the refrigerator further comprises a reinforcing member which is arranged at the resonance position of the second casing and fixedly connected with the second casing.

Thus, by providing the reinforcement member at the resonance position of the second housing, it is possible to prevent a certain position of the second housing from resonating with the exciter, and prevent the second housing from emitting an abnormal sound.

In some embodiments, the reinforcing member is fixedly connected to the outer wall surface of the second housing; or the reinforcing piece is fixedly connected with the inner wall surface of the foaming cavity. That is, the reinforcing plate may protrude from the outer wall surface of the second housing, or may be provided on the inner wall surface of the foaming chamber so as to correspond to the resonance position of the second housing.

In some embodiments, the second housing forms an outer wall surface of the case; or, a recessed part is arranged on the outer wall surface of the box body, the elastic part and the exciter are positioned in the recessed part, an assembly gap is formed between the side wall surface of the second shell and the inner wall surface of the recessed part, and the second shell and the outer wall surface of the box body are in smooth transition; the elastic member is connected to a side wall surface or a bottom wall surface of the recess.

Therefore, the exciter does not protrude out of the outer wall surface of the refrigerator body, the second shell forms part of the outer wall surface of the refrigerator, and the appearance of the refrigerator is concise.

In some embodiments, the depression depth of the depression is less than the thickness of the insulating layer. Therefore, the position of the box body corresponding to the exciter is still provided with the heat preservation layer with the preset thickness, so that the heat exchange between the low-temperature gas in the box body and the high-temperature gas outside the box body is avoided, and the refrigerator still has a good heat preservation effect.

In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the refrigerator provided by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a first cross-sectional view of the actuator position of the refrigerator of FIG. 1;

FIG. 3 is a second cross-sectional view of the actuator position of the refrigerator of FIG. 1;

FIG. 4 is a schematic structural view of portion A of FIG. 3;

FIG. 5 is a third cross-sectional view of the actuator position of the refrigerator of FIG. 1;

FIG. 6 is a fourth cross-sectional view of the actuator position of the refrigerator of FIG. 1;

FIG. 7 is a cross-sectional view five of the actuator position of the refrigerator of FIG. 1;

FIG. 8 is a sixth cross-sectional view of the actuator position of the refrigerator of FIG. 1;

FIG. 9 is a seventh cross-sectional view of the actuator position of the refrigerator of FIG. 1;

FIG. 10 is a schematic structural view of the second housing of FIG. 1;

FIG. 11 is an eighth cross-sectional view of the actuator position of the refrigerator of FIG. 1;

fig. 12 is a schematic structural view of a portion B in fig. 11.

Reference numerals are as follows:

10: a box body; 11: a recessed portion; 12: a heat-insulating layer; 13: a first housing; 14: a third housing;

20: a second housing; 21: a second housing body; 22: a damping layer;

30: an elastic member; 31: a bent portion;

40: an exciter;

50: a reinforcement;

60: a protective cavity;

l: an assembly gap;

x: the direction of vibration.

Detailed Description

In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the related art, a refrigerator includes an insulating layer, and a first case and a second case disposed inside and outside the insulating layer. Wherein, for realizing refrigerator sound production or user and refrigerator voice interaction, be equipped with the speaker in the second casing of refrigerator, be equipped with the play sound hole that runs through on the second casing, the sound that the speaker sent can play to the environment in through going out the sound hole. However, since the sound outlet hole is exposed to the environment, a waterproof and dustproof protection function cannot be provided to the speaker.

In view of this, the refrigerator provided in the embodiment of the present application is provided with the exciter, the exciter is disposed on one side of the heat preservation layer close to the second casing, and the exciter can drive the second casing to vibrate and generate sound when working. Therefore, under the condition that the integrity of the second shell is not damaged, the surface vibration sounding of the refrigerator is realized, the protection performance is better, and the sound pressure level of the sound is higher.

Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. Fig. 2 is a first sectional view of the actuator position of the refrigerator of fig. 1.

Referring to fig. 1 and 2, the present embodiment provides a refrigerator, which is a refrigeration device for keeping food or other articles in a constant low temperature state. The storage region may include a refrigerated region and a frozen region.

The refrigerator includes a cabinet 10 and an exciter 40. The refrigerator body 10 includes a refrigerator body on which cavities for storing articles such as a freezing compartment, a refrigerating compartment, a temperature adjusting compartment, etc. can be formed, and a switch door connected to the refrigerator body for closing the freezing compartment, the refrigerating compartment, and the temperature adjusting compartment. Of course, the number of the refrigerator doors can be three, and the refrigerator doors are respectively covered on the freezing compartment, the refrigerating compartment and the temperature adjusting compartment.

The refrigerator comprises the heat preservation layer 12, the heat insulation performance of the heat preservation layer 12 is good, and heat exchange between the inside of the refrigerator and the outside of the refrigerator can be avoided, so that a freezing chamber, a refrigerating chamber and a temperature adjusting chamber inside the refrigerator are maintained within a preset temperature range. The insulating layer 12 may be made of polyurethane and formed by a foaming process.

The inner side of the insulating layer 12 is provided with a first shell 13, and the first shell 13 is respectively arranged on the refrigerator body and the switch door. The first housing 13 may be made of plastic, etc., and is easy to clean and resistant to acid and alkali corrosion.

The second casing 20 is provided outside the insulating layer 12, and the second casing 20 may be provided on the refrigerator body, the opening and closing door, or both, depending on the position where the exciter 40 is provided. The material of the second casing 20 may be glass, plastic, etc., and the material of the second casing 20 on the refrigerator body and the switch door may be the same or different.

In some embodiments, the actuator 40 may be any one of an electromagnetic actuator, a magnetostrictive actuator, and a piezoelectric actuator, which is highly suitable.

In some embodiments, the number of actuators 40 may be multiple, and multiple actuators 40 may form a stereo system, optimizing the user experience. When the number of the exciter 40 is plural, the exciter 40 may be provided at both the refrigerator body and the opening and closing door. Illustratively, each of the opening and closing doors is provided with an actuator 40, and the refrigerator body is also provided with an actuator 40.

In some embodiments, the second housing 20 may be fixedly connected to the outer wall of the insulating layer 12, and in this case, a receiving portion (not shown) is provided in the insulating layer 12, an inner cavity of the receiving portion forms the protection chamber 60, and the exciter 40 is located in the receiving portion. The projection shape of the accommodating portion on the second housing 20 may be a relatively regular geometric shape such as a rectangle, a circle, an ellipse, a triangle, or other irregular geometric shapes.

In some embodiments, the recessed depth of the accommodating portion may be less than the thickness of the insulating layer 12, so that the side of the accommodating portion facing the first housing 13 still has the insulating layer 12 with a certain thickness, so as to prevent the low temperature inside the refrigerator from dissipating through the accommodating portion, and the insulating effect of the refrigerator is better.

The second casing 20 covers the opening of the accommodating portion, the portion of the second casing 20 connected to the insulating layer 12 is still in a fixed state, the portion of the second casing 20 corresponding to the opening of the accommodating portion constitutes a vibrating member, and the exciter 40 can drive the portion of the second casing 20 to vibrate and generate sound.

Thus, in this embodiment, no hole is formed in the second casing 20, the integrity of the second casing 20 is not damaged, and the second casing 20 has better sealing and protecting performance on the insulating layer 12, the exciter 40 and the like. And the surface vibration sound production is relative to the speaker sound production, has great sound pressure level and comparatively flat frequency response, and tone quality is better.

In some embodiments, the refrigerator further includes a third casing 14, and the first casing 13 and the third casing 14 are respectively attached to the inner side and the outer side of the insulating layer 12, in this case, the second casing 20 and the refrigerator body 10 are independent from each other, and a space between the second casing 20 and the third casing 14 forms a protection chamber 60.

In some embodiments, the refrigerator further includes an elastic member 30, one end of the elastic member 30 is connected to the third casing 14, the other end of the elastic member 30 is connected to the second casing 20, and the exciter 40 is connected to the second casing 20 for driving the second casing 20 to vibrate and generate sound relative to the refrigerator body 10.

Thus, when the exciter 40 vibrates, the elastic member 30 can correspondingly stretch or contract along the vibration direction of the third casing 14, so as to drive the second casing 20 to vibrate and generate sound. That is to say, the refrigerator can realize the face vibration sound production, and the sound that the refrigerator sent has comparatively flat frequency response.

Meanwhile, the weight of the exciter 40 is greater than that of the second housing 20. In this way, when the exciter 40 is integrally and fixedly connected to the second casing 20, the equivalent vibration mass of the second casing 20 is increased, which helps the second casing 20 to excite low-frequency sound and meet the design requirement of the sound generating device for low-frequency sound.

In some embodiments, the elastic member 30 has elasticity and can buffer the vibration of the second housing 20, the vibration of the exciter 40 is transmitted to the second housing 20 through the elastic member 30, and the second housing 20 can have a large vibration amplitude.

In some embodiments, when the second casing 20 has a larger vibration amplitude, the amount of air pushed by the second casing 20 when vibrating becomes larger, which also contributes to better low-frequency sound emission from the second casing 20.

Referring to fig. 2, in some embodiments, in order to shield the exciter 40, the shielding cavity 60 is disposed in the elastic member 30, the shielding cavity 60 penetrates through two ends of the elastic member 30 along the vibration direction of the second housing 20, the second housing 20 and the third housing 14 respectively cover ports at two ends of the shielding cavity 60, and the exciter 40 is disposed in the shielding cavity 60. In this way, the elastic member 30 can provide a protection function to the actuator 40 to prevent foreign materials such as water and dust from being deposited on the actuator 40.

In some embodiments, the elastic member 30 may be a rubber member having elasticity and capable of shielding the exciter 40.

It is understood that the compliance range of the elastic member 30 refers to a range in which the force applied to the elastic member 30 is linearly proportional to the expansion and contraction distance thereof. When the compliant range of the elastic member 30 is exceeded, the amount of expansion and contraction of the elastic member 30 is small, easily causing nonlinear distortion in the sound emitted from the second housing 20.

To improve the compliance range of the elastic member 30, the thickness of the elastic member 30 in the vibration direction X may be increased.

Fig. 3 is a second sectional view of the actuator position of the refrigerator of fig. 1. Fig. 4 is a schematic structural view of a portion a in fig. 3.

In order to increase the compliance range of the elastic element 30, referring to fig. 3 and 4, in some embodiments, the elastic element 30 may also be disposed in a bending manner in the vibration direction X of the second housing 20. I.e. the resilient member 30 may be of a bellows-like construction.

The number of bending times of the elastic member 30 may be one or more. Illustratively, the elastic member 30 includes a bent portion 31, the bent portion 31 has a U-shaped or V-shaped cross-section, and both ends of the bent portion 31 are connected to the third housing 14 and the second housing 20, respectively. Wherein the bent portion 31 may be protruded toward the outside of the protection chamber 60.

In some embodiments, FIG. 5 is a cross-sectional view three of the location of the actuator 40 of the refrigerator of FIG. 1. Referring to fig. 5, the bending portion 31 may also protrude toward the inner side of the protection cavity 60.

In this way, the elastic member 30 can be deformed in a stretching manner along the vibration direction X by approaching or separating the two ends of the bending portion 31 to each other and by compressing or stretching the bending portion 31 itself, and the elastic member 30 has a wide range of compliance, so as to allow the second housing 20 to have a large vibration amplitude and prevent the sound emitted from the second housing 20 from generating nonlinear distortion.

In some embodiments, the surface of the elastic member 30 has an adhesive surface, and the second housing 20 and the third housing 14 are respectively adhered and fixed to the elastic member 30.

In some embodiments, the elastic member 30 can be made of water gel, textured gel, acrylic gel, or the like, which is low in cost.

In some embodiments, the guard cavity 60 may be a closed cavity. In order to effectively increase the vibration amplitude of the second casing 20, in some embodiments, the elastic member 30 is a gas permeable member, so that the gas inside and outside the protection chamber 60 can flow through the elastic member 30.

When the second housing 20 moves toward the side close to the cabinet 10, the volume of the shielding chamber 60 becomes smaller, and the gas in the shielding chamber 60 is pressed by the second housing 20 and flows out toward the outside of the shielding chamber 60. When the second housing 20 moves toward the side away from the cabinet 10, the volume of the shielding chamber 60 becomes large, and the gas outside the shielding chamber 60 may flow toward the inside of the shielding chamber 60. Thus, the second casing 20 receives less gas resistance, the second casing 20 can have a larger vibration amplitude, and the sound emitted from the refrigerator has a larger sound pressure level.

In some embodiments, the elastic member 30 may be made of foam, double-sided adhesive, or the like. The foam member has a good elasticity and has air holes for ventilation, so as to realize the mutual circulation of air inside and outside the protection chamber 60. In some embodiments, the compliance of the double sided tape may range from 0.3mm to 1mm.

In some embodiments, the second housing 20 may be a steel plate, a glass plate, or the like. It will be appreciated that when the second housing 20 is a steel or glass plate, the stiffness of the second housing 20 is greater and the damping is less, so that the second housing 20 is susceptible to a sharp response at the resonant frequency.

Fig. 6 is a fourth sectional view of the actuator position of the refrigerator of fig. 1. Fig. 7 is a cross-sectional view five of the actuator position of the refrigerator of fig. 1. Fig. 8 is a six sectional view of the actuator position of the refrigerator of fig. 1. Fig. 9 is a seventh sectional view showing the position of the actuator of the refrigerator of fig. 1.

Referring to fig. 3 to 9, in some embodiments, the second shell 20 includes a second shell body 21 and a damping layer 22, the second shell body 21 and the damping layer 22 are attached to each other, and damping of the damping layer 22 is greater than damping of the second shell body 21.

By arranging the damping layer 22, the damping of the second shell 20 is increased, and the influence on the hearing feeling caused by the obvious frequency response peak valley caused by the resonance at the resonance frequency due to the over-small internal damping of the second shell 20 is avoided.

In some embodiments, referring to fig. 6 and 7, the damping layer 22 may be a honeycomb sandwich panel, a foam sandwich panel, a wood sandwich panel, or an acrylic panel, which is low in cost and easy to obtain. In this case, the damping layer 22 may be disposed on the side of the second housing 20 close to the exciter 40, or on the side of the second housing 20 facing away from the exciter 40.

In some embodiments, referring to fig. 6, when the damping layer 22 is disposed on the side of the second housing 20 close to the exciter 40, the exciter 40 may be directly connected to the damping layer 22.

In some embodiments, referring to fig. 3, 5 and 7, the damping layer 22 may be provided with an avoidance gap, and the exciter 40 is located in the avoidance gap and connected to the second housing body 21.

In some embodiments, referring to fig. 3 to 5 and fig. 8 and 9, the damping layer 22 may be a foam material, for example, the damping layer 22 is made of polyurethane, and is formed by a foaming process. In this case, the damping layer 22 may be filled with fibers or the like to improve the damping of the damping layer 22.

In some embodiments, a foaming cavity is formed in the second casing body 21, and the damping layer 22 is filled in the foaming cavity, so that the second casing body 21 surrounds the damping layer 22, and the strength of the second casing 20 is high, thereby preventing the damping layer 22 from cracking.

In some embodiments, the second casing 20 has a resonance position, and when the exciter 40 drives the second casing 20 to vibrate, the resonance position of the second casing 20 and the exciter 40 resonate, so that the amplitude of vibration at different positions of the second casing 20 is different, and the second casing 20 emits an abnormal sound. It is understood that when the exciter 40 drives the second casing 20 to vibrate, the vibration position of the second casing 20 is annular and surrounds the outer periphery of the exciter 40.

The resonance position of the second casing 20 is related to the material, structure, and the like of the second casing 20, and the resonance position of the second casing 20 can be obtained through simulation, which is not limited in this embodiment.

Fig. 10 is a schematic structural view of the second housing of fig. 1. In some embodiments, referring to fig. 5 and 8 to 10, the refrigerator further includes a reinforcing member 50, and the reinforcing member 50 is disposed at the resonance position of the second casing 20 and fixedly connected to the second casing 20, so that different positions of the second casing 20 may have approximately the same strength, the amplitudes of the positions of the second casing 20 are approximately the same, and the second casing 20 may be integrally translated when vibrating, thereby preventing the second casing 20 from generating abnormal sound.

In some embodiments, the material of the stiffener 50 may be plastic, metal, or the like. For example, the material of the stiffener 50 may be aluminum, stainless steel, or the like. The reinforcing member 50 may be fixed to the second case 20 by bonding, welding, or the like, depending on the material of the reinforcing member 50 and the second case 20.

In some embodiments, when the second housing 20 is a metal piece, the reinforcing member 50 may also be formed by stamping.

In some embodiments, the stiffener 50 may be annular and surround the exciter 40. In some embodiments, the reinforcing member 50 may also have a block shape, and the number of the reinforcing members 50 is plural, and the plural reinforcing members 50 are arranged at intervals along the circumference of the exciter 40.

In some embodiments, the reinforcing member 50 is fixedly connected to the outer wall surface of the second casing 20, and the reinforcing member 50 may be disposed on a side of the second casing 20 close to the exciter 40 or a side facing away from the exciter 40. In this case, the second case 20 may be a steel plate or a glass plate.

In some embodiments, when the second housing 20 has a foaming chamber, the reinforcing member 50 may be disposed on the outer wall surface of the second housing body 21 (as shown in fig. 10), or the reinforcing member 50 may be fixedly connected to the inner wall surface of the foaming chamber (as shown in fig. 5).

At this time, the height of the reinforcing member 50 in the vibration direction X of the second housing 20 is less than or equal to the cavity height of the foaming cavity in the vibration direction X of the second housing 20, that is, the reinforcing member 50 is prevented from damaging the integrity of the second housing body 21, so as to prevent the reinforcing member 50 from affecting the strength of the second housing 20, which results in the change of the resonance position of the second housing 20.

Fig. 11 is an eighth cross-sectional view of the actuator position of the refrigerator of fig. 1. Fig. 12 is a schematic structural view of a portion B in fig. 11.

Referring to fig. 11 and 12, in some embodiments, a recess 11 is formed on an outer wall surface of the casing 10, the elastic member 30 and the exciter 40 are located in the recess 11, and an assembly gap L is formed between a side wall surface of the second housing 20 and an inner wall surface of the recess 11. Thus, the second housing 20 does not collide with the inner wall surface of the recess 11 during vibration, and noise is prevented from being generated from the second housing 20.

In some embodiments, the size of the assembly gap L may be set as desired, for example, 3mm to 5mm.

In some embodiments, the shape of the second casing 20 is matched with the shape of the recess 11, and it may be a regular plate-shaped structural member such as a rectangular plate, a circular plate, etc., or may be another irregular plate-shaped structural member.

The second housing 20 may have a height difference from the outer wall surface of the casing 10. In some embodiments, the second casing 20 is in smooth transition with the outer wall surface of the refrigerator body 10, so that the second casing 20 can form the outer wall surface of the refrigerator body 10, the outer wall surface of the refrigerator body 10 is smooth, and the appearance of the refrigerator is simple.

In some embodiments, the elastic member 30 is connected to a side wall surface or a bottom wall surface of the recess 11, as necessary. Of course, in order to prevent the second housing 20 from being tilted during the vibration process, one of the recess 11 and the second housing 20 may be provided with a guide groove, and the other one may be provided with a protruding guide portion, which extends into the guide groove and is movable relative to the guide groove.

In some embodiments, the reinforcing member 50 may serve as a guide portion, and accordingly, a guide groove in the recess 11 into which the guide portion extends.

In some embodiments, the case 10 has an insulation layer 12, and the recess 11 is recessed to a depth less than the thickness of the insulation layer 12. In this way, the insulating layer 12 with a predetermined thickness is still formed at the position of the cabinet 10 corresponding to the exciter 40, so that heat exchange between low-temperature gas inside the cabinet 10 and high-temperature gas outside the cabinet 10 is avoided, and the refrigerator still has a good insulating effect.

In some embodiments, the second housing 20 constitutes an outer wall surface of the case 10. Illustratively, when the actuator 40 is disposed on an opening and closing door corresponding to the refrigerating compartment, the second casing 20 is disposed outside the third casing 14 of the opening and closing door, and the second casing 20 constitutes an outer wall surface of the opening and closing door.

In some embodiments, the second housing 20 is in smooth transition with the outer wall surface of the other switch door to prevent the switch door from protruding beyond the other switch door. At this time, the thickness of the heat-insulating layer of the switch door is smaller than that of the heat-insulating layers of other switch doors.

In the present specification, each embodiment or implementation mode is described in a progressive manner, and the emphasis of each embodiment is on the difference from other embodiments, and the same and similar parts between the embodiments may be referred to each other.

In the description of the present specification, reference to the description of "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A refrigerator, characterized by comprising:

an exciter;

a case for storing articles;

the box body comprises an insulating layer, a first shell and a second shell, wherein the first shell and the second shell are respectively positioned on the inner side and the outer side of the insulating layer;

the orientation of heat preservation one side of second casing is formed with the protection chamber, second casing closing cap the opening in protection chamber, the exciter is located the protection intracavity, just the exciter with the second casing links to each other for drive the vibration of second casing and generate the sound wave.

2. The refrigerator according to claim 1, further comprising:

the first shell and the third shell are respectively attached to the inner side and the outer side of the heat-insulating layer;

and one end of the elastic piece is connected with the third shell, the other end of the elastic piece is connected with the second shell, and when the third shell vibrates, the elastic piece can elastically deform along the vibration direction of the third shell.

3. The refrigerator according to claim 2, wherein the protection chamber is provided in the elastic member, the protection chamber penetrates both ends of the elastic member in a vibration direction of the second casing, the second casing and the third casing respectively cover ports of both ends of the elastic member, and the exciter is located in the protection chamber.

4. The refrigerator of claim 3, wherein the elastic member is bent in a vibration direction of the second case.

5. The refrigerator as claimed in claim 3, wherein the surface of the elastic member has an adhesive surface, and the second and third housings are respectively adhesively fixed to the elastic member.

6. The refrigerator of claim 3, wherein the elastic member is an air permeable member.

7. The refrigerator according to any one of claims 1 to 6, wherein the second casing includes a second casing body and a damping layer, the second casing body and the damping layer being attached to each other, and damping of the damping layer is greater than damping of the second casing body.

8. The refrigerator as claimed in claim 7, wherein a foaming chamber is provided in the second casing body, and the damping layer is filled in the foaming chamber.

9. The refrigerator of claim 8, wherein the second housing has a resonance position, and when the actuator vibrates the second housing, the resonance position of the second housing resonates with the actuator;

the refrigerator further comprises a reinforcing member which is arranged at the resonance position of the second casing and fixedly connected with the second casing.

10. The refrigerator according to any one of claims 3 to 6,

the second shell forms the outer wall surface of the box body;

or, a recessed part is arranged on the outer wall surface of the box body, the elastic part and the exciter are positioned in the recessed part, an assembly gap is formed between the side wall surface of the second shell and the inner wall surface of the recessed part, and the second shell and the outer wall surface of the box body are in smooth transition; the elastic member is connected to a side wall surface or a bottom wall surface of the recess.