GB2556965A

GB2556965A - Refrigerator muffling cover and refrigerated container comprising the same

Info

Publication number: GB2556965A
Application number: GB1711299.6A
Authority: GB
Inventors: Ma Quan; Liu Wei; Rong Weili; Zhang Donglan
Original assignee: China International Marine Containers Group Co Ltd; CIMC Containers Holding Co Ltd; Yangzhou Tonglee Reefer Container Co Ltd
Current assignee: China International Marine Containers Group Co Ltd; CIMC Containers Holding Co Ltd; Yangzhou Tonglee Reefer Container Co Ltd
Priority date: 2016-11-22
Filing date: 2017-07-13
Publication date: 2018-06-13
Anticipated expiration: 2037-07-13
Also published as: CN108082757A; GB201711299D0; GB2556965B; CN108082757B

Abstract

A cover 1 suitable for covering a fan (12, fig 6) of a refrigerator to reduce noise, the cover comprising an end plate 14 located opposite the fan and having an inner surface with an inclined reflector plate (11, fig 6); two deflector plates (10, fig 5) each protruding from the inner surface and located on each side of the reflector plate; side plates 15 located at both sides of the end plate and having an air inlet 3, and wherein the reflector and deflector plates direct airflow from the fan to an air outlet 2 in a plate 16 that is connected to both the end plate and the side plates. The inner surface of the side plates may be provided with intake guiding barrier plates (8, fig 5) and the side plates may have an access door 4. The air inlet may comprise a shutter that comprises louver blades. The air outlet may comprise a plurality of exhaust muffling barrier plates (9, fig 5) that extend downwards from an inner surface of the outlet plate.

Description

(54) Title of the Invention: Refrigerator muffling cover and refrigerated container comprising the same Abstract Title: Muffling cover for refrigerator ventilating fan (57) A cover 1 suitable for covering a fan (12, fig 6) of a refrigerator to reduce noise, the cover comprising an end plate 14 located opposite the fan and having an inner surface with an inclined reflector plate (11, fig 6); two deflector plates (10, fig 5) each protruding from the inner surface and located on each side of the reflector plate; side plates 15 located at both sides of the end plate and having an air inlet 3, and wherein the reflector and deflector plates direct airflow from the fan to an air outlet 2 in a plate 16 that is connected to both the end plate and the side plates. The inner surface of the side plates may be provided with intake guiding barrier plates (8, fig 5) and the side plates may have an access door 4. The air inlet may comprise a shutter that comprises louver blades. The air outlet may comprise a plurality of exhaust muffling barrier plates (9, fig 5) that extend downwards from an inner surface of the outlet plate.

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FIG. 10B

REFRIGERATOR MUFFLING COVER AND REFRIGERATED CONTAINER

COMPRISING THE SAME

BACKGROUND

The present invention relates to the mechanical field, and especially to a refrigerator muffling cover and a refrigerated container comprising, the same.

[0002[ Presently, most refrigerated containers are used for the refrigerated transport of the commodities, hut some refrigerated containers are also used in residential areas as a small refrigeration storage, in which ease due to restrictions from the operational environment, it is required for the noise generated by the refrigerator of the refrigerated container to be as minor as possible, thus to reduce its influence upon the surrounding environment. How to enable the noise reduction of the refrigerator of a refrigerated container has been one technical matter to be solved by those skilled in this art.

SUMMARY

To solve at least partially the above technical matters, one aspect of the present invention provides a refrigerator muffling cover used for covering the ventilating’ fan of the refrigerator and reducing noise, the refrigerator muffling cover comprises:

[0004] an end plate arranged at least partially opposite to the ventilating fan of the refrigerator, the inner surface of the end plate being provided with a reflector plate inclined to the inner surface and an air deflector plate protruding from the inner surface, the air deflector plate being located on both sides of the reflector plate and extending toward the air outlet; [0005] side plates located at both sines of the end plate, which side plate being provided with an air inlet; and [0006] a top plate located at the top of the end plate and provided with an air outlet;

wherein the reflector plate and the air deflector plate direct the airflow' from the ventilating fan of the refrigerator out of the air outlet.

[Of 'the reflector plate and/or the air deflector plate may comprise a barrier plate, a non-woven fabric, a sound-damping material, a non-woven fabric and a punched harrier plate successively from the outside to the inside.

The reflector plate may be disposed at an angle of 4O°-50° with respect to the inner surface of the end plate.

[0010] The inner surface of the side plate may be provided with an intake guiding barrier plate located at the air inlet to facilitate the air flow.

The intake guiding barrier plate may comprise a punched barrier plate, a non-woven fabric, a sound-damping material, a non-woven fabric and a punched barrier plate successively from the outside to the inside.

[0012] The air outlet may be configured to have a plurality of exhaust muffling barrier plates extending downward from the inner surface of the top plate lor reducing noise. [0013] 'The exhaust muffling harrier plate may comprise a punched barrier plate, a non-woven fabric, a sound-damping material, a non-woven fabric and a punched barrier plate successively from the outside to the inside.

[0014] The end plate, the side plate and the top plate may comprise an aluminum plate, a loam layer, a sound-damping material, a nun-woven taboo aud a puncheo harrier plate successively from the outside to the inside.

[0015] The air inlet may be provided with an air inlet shutter thereon, and the air inlet shutter may comprise a punched barrier plate, a non-woven fabric, a sound-damping material, a non-woven fabric, and a flat barrier plate.

[0016] The air inlet shutter may comprise louver blades with a bending degree of

105° while the inside part is longer and the outside part is shorter.

[0017] The sound-damping material may be rock wool, polyurethane acoustic foam or silica aerogel.

[0018] The refrigerator muffling cover may be provided with a hoisting ring on its top, and/or the refrigerator muffling cover is provided with a forklift groove on its bottom.

[0019] The refrigerator muffling cover may be further provided with an access door tor easy detection and maintenance.

[0020] The refrigerator muffling cover may be provided with a mounting portion for mating with the refrigerator.

Another aspect of the present invention provides a refrigerated container comprising the refrigerator muffling cover ofthe above-described aspect of the invention. [0022] The refrigerator muffling cover according to another aspect of the present invention comprises an end plate, a side plate and a top plate, the side plate is 'provided with an air inlc-t, the top plate is provided with an air outlet, and the inner surface of the end plate is provided with a reflector plate and an air deflector plate so that the air flow from the ventilating fan of the refrigerator could be directed by the reflector plate and the air deflector plate out of the refrigerator muffling cover. Such a refrigerator muffling cover has the advantages of convenient installation and obvious effect of noise reduction, and can effectively reduce the noise generated by the ventilating fan ofthe refrigerator by more than

BRIEF DESCRIPTION OF 'ΠΙΕ DRAWINGS In order that the advantages of the present invention may be more readily understood, the present invention as described above briefly will be described in more detail while referring the specific exemplary embodiments illustrated in the drawings, it is to be understood that these drawings depict only typical embodiments of the invention, thus should not be considered as limiting the protective scope ofthe invention, the invention is described and illustrated with additional characteristics and details by means ofthe drawings. In which: [0024] Fig, 1 is a perspective view of a refrigerator muffling cover according to the present invention;

[0025] Fig,2 is a left view of the refrigerator muffling cover shown in Fig. 1;

[0026f Fig-3 is a right view ofthe refrigerator muffling cover shown in Fig. 1;

Fig.4 is a top view of die refrigerator muffling cover shown in Fig.l;

Fig.5 is a front view of the refrigerator muffling cover shown in Fig.l with the air flow direction being illustrated by arrows;

[0029] Fig.6 is a right sectional view of the refrigerator muffling cover shown in

Fig.l with the air flow direction being illustrated by arrows;

Fig.7 is an end view of a refrigerated container according to the present invention;

Fig.8 is a schematic sectional view of the end plate, the top plate or the side plate of the refrigerator muffling cover as shown in Fig. 1;

[0032] Fig.9 is a schematic sectional view of the internal barrier plate of the refrigerator muffling cover shown in Fig, 1;

[0033J Fig.lOA is a side view of the air inlet shutter of a refrigerator muffling cover according to the present, invention; and [00341 [0036] [0037] [0038]

Fig. 10B is a front view of the air inlet shutter shown in Fig.l 0A. REFERENCE NUMBERALS:

1: refrigerator muffling cover '2; air outlet

3: air inlet shutter 4: access door

5: flange 6: hoisting ring

7: forklift groove 8: intake guiding ’harrier plate

9: exhaust muffling barrier plate 10: air deflector plate

11: reflector plate 12: ventilating fan of the refrigerator .13: refrigerated container 14: end plate

15: side plate lb: top plate

21: aluminum plate 22: foam layer

23: sound-damping material 24: non-woven fabric

25: punched barrier plate 26: backbone

27: self-tapping screw 28: sealant

31: punched barrier plate 32: non-woven fabric

33: sound-darnping material 34: self-tapping screw

DlHAILFl) DESCRIPTION

In the following discussion, details are given to provide a more thorough understanding of the present Invention. However, those skilled in the art will appreciate that, the present invention may be practiced without one or more of these details, in a particular example, some of the technical features known in the art are not described in delaii in order to avoid confusion with the present invention. It. should be noted that the terms upper, lower, front, rear, left, right and the like are used herein for illustrative purposes only and are not intended to be limiting.

[0051] As shown in Fig J, the present invention provides a refrigerator muffling cover 1, which may be used io cover the ventilating tan of the refrigerator 12 located at the outer surface of the refrigerated container 13 for reducing noise thereof [0052] In the illustrated embodiments, the refrigerator muffling cover 1 is substantially configured to have an open hexahedron shape. Specifically, the refrigerator muffling cover 1 comprises an end plate 14, a side plate 15, a top plate 16 and a bottom plate. Here the end plate 14 is arranged at least partially opposite to the ventilating fan 12 of the refrigerator, the side plates 15 are located at both sides of the end plate 14, the top plate 16 is located at the top of the end plate 14 and attached to the side plates 15, the bottom plate is located at the bottom of the end plate 14 and attached to the side plates 15 Ί he top plate 16 and the bottom plate can be configured integrally with the end plate 14, and may be formed by bending. Hence, the end plate 14, the top plate 16, the two side plates 15 and the bottom plate form the above open hexahedron shape so as to cover the outside of the ventilating fan 12 of the refrigerator.

[005.3] In the dlustmteP embodiments, the opening is defined by the side plates 15, the top plate 16 and the bottom plate, and m order to be easily and securely connected with the refrigerated container, the outside of the opening may be provided with a bent portion, and holes, corresponding to the mounting holes in the refrigerated container, arc provided in the bent portion (flange 5) to facilitate installation.

[0054] Also, for the convenience of moving and installing the refrigerator muffling cover f. tlte refrigerator muffling cover 1 is provided with a hoisting ring 6 on its top (for example, the top plate 16), and is provided with forklift grooves 7 on its bottom (for example, the bottom plate), The side plates 15 of the refrigerator muffling cover 1 may also be provided with an access door 4 for easy detection and maintenance, [0055j As shown in Figs. 2 to 4, the side plate 15 is a provided with an air inlet, and the fop plate 16 is provided with an air outlet 2.

[0056] Turning to Figs. 5 and 6, the inner surface of the end plate 14 is provided with a re Hector plate 11 inclined to the inner surface. The reflector plate 1.1 is inclined to the ventilating fan 12. of the refrigerator and the air outlet 2 to be described in detail below to reflect the airflow from the ventilating fan 12 of the refrigerator to the air outlet 2.Preferably, the reflector plate 11 is disposed at an angle of 40°-50° with respect to the inner surface, and turther preferably, the reflector plate 11 is inclined to the end plate 14 at an angle of 45°. [0057] Furthermore, the inner surface of the end plate 14 is also provided with an air deflector plate 10 protruding from the inner surface, the air deflector plate 10 is located at both sides of the reflector plate 11 and extend toward the air outlet 2.

[0058] in the illustrated embodiments, the reflector plate 11 may be configured such that the lower end thereof is lower than the lower end of the ventilating fan 12 of the refrigerator, so that the airflow from the ventilating fan 12 of the refrigerator may be reflected by the reflector plate 11 as much as possible. The air deflector plate 10 overlaps with the reflector plate 11, and extends upward from the reflector plate 11 io the air outlet 2.Hence, the end plate 14, the reflector plate 11 and the air deflector plate 10 form collectively a cavity capable of directing the airflow from the ventilating fan 12 of the refrigerator io the air outlet.

The air outlet 2 may be configured to comprise a plurality of exhaust muffling barrier plates 9 extending downward from the inner surface of the top plate 16, in ibis way,

ΛΛ-ί<-KV X r f**.v V A*. wAs-fT ·> ./5.41 1 z»«vi Τα <6- a!« rt«T>At«z*rtyl a,.« v. aa + Ta aa ·.« zaX«« aa. Afe·»» a. 4-.-, « uh αηπυν* tviK».tui uj uit,- j s.-j.jCt.u?j μιαυ<; u vdu Oc uidvnaFgvu again ilvin me xciiigclaiui muffling cover 1 through the exhaust muffling barrier plate 9, thereby significantly reducing noise and a resultant noise reduction of 25 dB or more being achieved. Further, nine exhaust muffling barrier plates 9, that is, four longer ones and five shorter ones, could be provided alternatively, and its bottom end is provided with a chamfer to facilitate the air outflow.

The refrigerator muffling cover 1 according to the present invention has the advantages of convenient installation and obvious effect of noise reduction, and can effectively reduce the noise generated by the ventilating fan 12 of the refrigerator by more than 25 dB.

[0061 ] As shown in Fig.5, the inner surface of the side plate 15 can also be provided with an intake guiding barrier plate 8 located at the air inlet, and the intake guiding barrier plate 8 extends inwardly from the inner surface of the side plate 15 by a certain distance, and the end of the intake guiding barrier plate 8 may also be provided with a chamfer facilitate guiding of the inlet airflow·, [0062] Hence, as shown by the arrow in Fig.5, the airflow entering the refrigerator muffling cover 1 from the air inlet is directed by the intake guiding barrier plates 8 at the upper and lower sides, the left and right sides, or at the periphery of the air inlet, and can be reflected by the air deflector plate 10 to move downward, thus flows through the compressor position, finally through the cavity formed by the reflector plate 11 and the air deflector plate 10, discharges from the air outlet 2 via the exhaust muffling barrier plate 9.h will be appreciated that the airflow entering the refrigerator muffling cover 1 from the air inlet can be directed to flow toward the lower part of the refrigerator muffling cover 1, so that the airflow can reach quickly the lower part region where the compressor of the refrigerator is provided , thus ensuring the normal operation of the compressor.

[0063] Now turning to Fig.8, the aforesaid end plate 14, the side plates 15 and die top plate 16 may be constituted by an aluminum plate 21, a foam layer 22, a sound-damping material 23, a non-woven fabric 24 and a punched barrier plate 25 successively from the outside to the inside. Also., as shown in the figures, the end plate 14, the side plates 15 and the top plate 16 may be provided with therebetween a plurality of backbone 26 (for example, C-shaped grooves or U shaped grooves) arranged opposite to each other so as to support the refrigerator muffling cover 1. The aluminum plate 21 or the punched barrier plate 25 and so on may be connected with the backbone 26 by means of fastening pieces, such as the seif-tapping screw 27. The two backbones 26 arranged opposite to each other may also be provided with therebetween a sealant 28 to further reduce noise.

.As shown in Fig.9, the aforesaid reflector plate 11, the air deflector plate 10, the· Intake guiding barrier plate 8, the exhaust muffling barrier plate 9 are constituted by an outer punched barrier plate 31, an outer non-woven fabric 32, a sound-damping material 33, an inner non-woven fabric 32, and an inner punched barrier plate 31, to form a multi-layer (five layer) structure, and the punched barrier plate 31 and the inner non-woven fabric 32 may be connected to the sound-damping material 33 by means of the self-tapping screw 34. (00651 Further, if necessary, the aforesaid sound-damping material may be rock wool or polyurethane acoustic foam or silica aerogel, which has a good sound-absorbing effect. [0066] in an alternative embodiment, optionally, as shown in Figs, lOAand 1GB, the air inlet is provided with an air inlet shutter 3, the air inlet shutter 3 is constituted by a punched barrier plate (the upper plate), a non-woven fabric, a sound-damping material, a non-woven fabric and a fiat barrier plate (the lower plate),

The air inlet shutter 3 3nay comprise louver blades with a bending degree of 105° while the inside part is Rutger and the outside part is shorter. This can be more in favor of air intake and noise reduction.

[0068] According to another aspect of the present invention, there provides a refrigerated container comprising the aforesaid refrigerator muffling cover 1 and a ventilating fan of die refrigerator, the outside of which is provided with the refrigerator muffling cover 1. [0069] Unless defined otherwise, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled person in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the present invention. As used herein, terms such as parts'¹ are used to denote a single part or a combination of several parts. The terms such as assemble, provide and the like appeared herein anay mean that one component is directly attached to another component, or that one component is attached to another component through a middleware. The features described herein in one embodiment may be applied to another embodiment, alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise described. [0070] The present invention has been described with the above embodiments thereof, however, it should be appreciated that the above embodiments are used only for the purpose of illustration and explanation, rather than limiting, the present invention within the scope of the described embodiments. It will be understood by those skilled in the art that various modi fications and variations can be made in the light of the teachings of the present, invention, which tall within the scope of the invention as claimed .

Claims

WHAT IS CLAIMED IS:

I. Λ refrigerator muffling cover used for covering the ventilating fan of a refrigerator and reducing noise, the refrigerator muffling cover comprises:

an end plate arranged at least partially opposite to the ventilating Ian of the refrigerator, Ute inner surface of the end plate being provided with a reflector plate inclined to the inner surface and an air deflector plate protruding from the inner surface, the air deflector plate being located on both sides of the reflector plate and extending toward the air outlet:

side plates located at both sides of she end plate, which side plate being provided with an air inlet; and a top plate located at the top of the end plate and provided with an air outlet; wherein the reflector plate and the air deflector plate direct the airflow from the ventilating fan. of the refrigerator out of the air outlet.
2. The refrigerator muffling cover according to claim 1, wherein the reflector plate find/ο· the rttr deflevtoi plate ate constituted by a punched hairies plats.', a nou-woven fabric, a sound-damping material, a non-woven fabric and a punched barrier plate successively from the outside to the inside.
3. The refrigerator muffling cover according to claim 1 or 2, wherein the reflector plate is disposed at an angle of 40°-50° with respect to the inner surface of the end plate.
4. The refrigerator muffling cover according to claim !, 2 or 3, wherein the inner surface of the side plate is provided with an intake guiding barrier plate located at the air inlet to facilitate the air flow.
5. The refrigerator muffling cover according io claim 4, wherein the intake guiding barrier plate is constituted by a punched barrier plate, a non-woven fabric, a sound-damping material, a non-woven fabric and a punched barrier plate successively from the outside to the Inside.
6. The refrigerator muffling cover according to any preceding, claim, wherein the air outlet is configured to have a plurality of exhaust muffling barrier plates extending downward from the inner surface of the top plate for reducing noise,
7. The refrigerator muffling cover according to claim 6, wherein the exhaust muffling barrier plate is constituted by a punched barrier plate, a non-woven fabric, a sound-damping material, a non-woven fabric and a punched barrier plate successively from the outside to the inside,
8. The refrigerator muffling cover according to any preceding claim, wherein the end plate, the side plate and the top plate are constituted by an aluminum plate, a foam layer, a sound-damping material, a non-woven fabric and a punched barrier plate successively from the outside to the inside.
9. The refrigerator muffling cover according to any preceding claim, wherein the air inlet is provided with an air inlet shutter thereon, and the air inlet shutter is constituted by a punched barrier plate, a non-woven fabric, a sound-damping material, a non-woven fabric, and a flat barrier plate.
10. The refrigerator muffling cover according to claim 9, wherein the air inlet shutter comprises louver blades with a bending degree of 105° while the inside part, is longer and the outside part is shorter.
11. 1 he rctrigcfatsa muffling covet accotdtng to atty one ot claims 2, 5, 7, 8 and 9, wherein the sound-damping material is rock wool, polyurethane acoustic foam or silica aerogel.
12. The refrigerator muffling cover according to any preceding claim, wherein the refrigerator muffling cover is provided with a hoisting ring on its top, and/or the refrigerator muffling cover is provided with a forklift groove on its bottom.
13. The refrigerator muffling cover according to any preceding claint, wherein the refrigerator muffling cover is further provided with an access door for easy defection and maintenance.
14. The refrigerator muffling cover according to any preceding claim, wherein the refrigerator muffling cover is provided with a mounting portion for mating with the refrigerator.
15. Λ refrigerated container comprising the refrigerator muffling cover according to anyone of claims 1 to 14.

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Office

Application No: Claims searched:

GB1711299.6 1-15