CN105783392B

CN105783392B - Refrigeration device

Info

Publication number: CN105783392B
Application number: CN201410831241.0A
Authority: CN
Inventors: 窦本和; 张剑锋; 洪晶
Original assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Home Appliances Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; BSH Home Appliances Co Ltd
Priority date: 2014-12-26
Filing date: 2014-12-26
Publication date: 2020-01-17
Anticipated expiration: 2034-12-26
Also published as: CN105783392A

Abstract

A refrigeration device (1) comprising a housing (11) defining an evacuable chamber (110) and a vacuum pump (12) for evacuating said chamber (110), the vacuum pump (12) being placed in a containment casing (13), the containment casing (13) being placed in a containment space (14) defined by at least two opposite walls (141, 142), the two opposite walls (141, 142) being connected to the containment casing (13) by at least one elastic element (15) respectively, the elastic element (15) being used to dampen the vibrations of the containment casing (13) and of the housing (11) during evacuation, reducing noise, and the two elastic pieces (15) are extended in a wave shape or a zigzag shape between the wall of the accommodating space (14) and the accommodating shell (13), so that the bearable deformation of the elastic pieces (15) is increased, the vibration of each dimension can be effectively reduced, and the noise can be reduced.

Description

Refrigeration device

Technical Field

The present invention relates to refrigeration equipment, and more particularly, to a refrigeration equipment having an evacuable chamber.

Background

In recent years, with the development of storage technology, the existing refrigeration equipment adopts an evacuable chamber (evacuable chamber) to reduce the oxygen content in the chamber, thereby improving the storage effect of the articles and prolonging the storage time. The vacuumable chamber (also referred to as a "low pressure chamber") is evacuated using a vacuum pump.

The evacuable chamber is defined by a closeable housing. Practical use shows that the vacuum pump generates noise during the vacuum pumping process.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a refrigeration apparatus which is advantageous for reducing noise generated by vacuum pumping.

To this end, an aspect of the present invention provides a refrigeration apparatus including a housing defining an evacuable chamber, and a vacuum pump for evacuating the chamber, the vacuum pump being disposed in a receiving case disposed in a receiving space defined by at least a pair of oppositely disposed walls; the wall and the accommodating shell are connected through at least two elastic pieces, and the elastic pieces extend between the wall and the accommodating shell in a wave shape or a fold line shape.

Compared with the prior art, the scheme has the following advantages: the two opposite walls of the limited accommodating space are respectively connected to the accommodating shell through at least one elastic piece, the vibration of the accommodating shell and the shell in the vacuumizing process is buffered by the elastic pieces, the noise is reduced, the two elastic pieces extend in a wave shape or a zigzag shape between the walls of the accommodating space and the accommodating shell, the bearable deformation quantity of the elastic pieces is increased, the vibration of each dimension can be effectively reduced, and the noise reduction is facilitated.

It should be noted that the term "evacuable chamber" in the present invention means that the chamber can be evacuated to have a pressure lower than atmospheric pressure, for example, the chamber can be depressurized to maintain the pressure in the chamber between atmospheric pressure and absolute vacuum. The evacuable chamber may also be referred to in the art as a "low pressure chamber," a "vacuum chamber.

Optionally, the resilient member is connected between the wall and an outer wall of the containment case opposite the wall. The scheme has the advantages that: connect the scheme of holding the shell in any place for the other end of this elastic component, connect this other end at the outer wall that holds the shell relative with this wall, can avoid setting up the elastic component of longer length, reduce cost on the one hand, on the other hand can effectively cushion and hold shell and two relative inter-mural relative motion, this is because: the two elastic pieces are arranged in such a way that the accommodating shell moves towards one of the two opposite walls, the elastic piece between the wall and the accommodating shell is necessarily extruded, the elastic piece between the other wall and the accommodating shell is pulled, namely, the movement of the accommodating shell in one direction is buffered through the two elastic pieces with opposite deformation, and the buffering efficiency is high.

Optionally, the two opposite walls have a first groove, the outer wall of the accommodating shell has a second groove, and the first groove and the second groove are respectively used for placing in two ends of the elastic member. The scheme has the advantages that: the both ends of elastic component have the multiple with the scheme that double-phase is relative wall, hold the shell and be connected respectively, for example adopt self-tapping nail, viscose etc. fixed, this scheme proposes the mode that adopts the recess to peg graft: on the one hand, the vibration in the vacuumizing process causes that the relative displacement between the shell and the accommodating shell generated in each dimension is relatively small, the elastic piece cannot be separated even if the two ends of the elastic piece are not fixed after being inserted into the grooves, and on the other hand, the elastic piece is detachably connected, so that the maintenance or the replacement of a vacuum pump joint (located outside the accommodating shell and needing to be disassembled from the accommodating shell) is facilitated.

Optionally, the first groove has first stoppers at both ends.

Optionally, the accommodating space is further defined by a third wall connecting the two opposite walls, the first groove includes an inner end close to the third wall and an outer end far away from the third wall, the first blocking member located at the outer end is a blocking block, and the first blocking member located at the inner end is the third wall.

Optionally, the second groove has second stoppers at both ends.

Optionally, the second barrier is a barrier.

Optionally, the second recess includes an outer end distal from the third wall and a stop at the outer end.

The advantage of above-mentioned scheme lies in: the two ends of the groove are provided with the blocking parts, so that the accommodating shell can be limited to move in the accommodating space along the extending direction of the groove, and the realization structure of the blocking parts has multiple types.

Optionally, the outer wall of the housing encloses a recessed area recessed toward the chamber, the recessed area forms the accommodating space, and one end of the elastic member is connected to the outer wall of the housing. The advantage of above-mentioned scheme lies in: the shell and the accommodating shell which is sunken in the sunken area formed by enclosing the outer wall of the shell can be combined into a vacuum storage unit standard component, the standard component has good compatibility and is suitable for certain type of refrigeration equipment, such as a refrigerator, the refrigeration equipment with different platforms/models can be added according to the requirement, and the position of the accommodating shell and the buffer structure between the accommodating shell and the wall of the accommodating space do not need to be adjusted in a targeted manner according to different internal structures of the refrigeration equipment.

Optionally, the recessed region is located at a rear of the housing.

Optionally, an elastic cushion block is further arranged between the bottom wall of the accommodating shell and the outer wall of the shell.

Optionally, the elastic cushion block includes a main body portion, and a plurality of first elastic strips and second elastic strips connected to the main body portion and extending in opposite directions, and a gap is provided between each adjacent first elastic strip and each adjacent second elastic strip.

Optionally, the first elastic strip and the second elastic strip are distributed in a staggered manner.

The advantage of above-mentioned scheme lies in: utilize this elastic cushion block to cushion the relative motion between the diapire that holds the shell and the outer wall of casing, have gapped elastic cushion block and can improve the deformation volume in upper and lower direction for solid elastic cushion block to simultaneously to control and cushion the relative motion on the fore-and-aft direction, first elasticity strip and the dislocation of second elasticity strip distribute for the scheme that two elasticity strips aimed at, can further cushion and hold the shell diapire, the vibration of casing outer wall on two elasticity strip extending direction.

Optionally, the vacuum pump is connected to the housing by a hose.

Optionally, the fitting on the housing adapted to connect to the hose is located on a rear wall of the housing.

Optionally, the vacuum pump is fixed on the bottom wall of the accommodating shell by using a screw, and an elastic gasket is arranged between a bolt of the screw and the bottom wall of the accommodating shell. The benefits of this scheme are: the relative motion between the vacuum pump and the accommodating shell can be buffered.

Optionally, the compressor further comprises a compressor chamber, the compressor chamber forms the accommodating space, and one end of the elastic element is connected to the inner wall of the compressor chamber. The benefits of this scheme are: the compressor has the advantages that the compressor has larger indoor space, can be used for placing the accommodating shell, and does not occupy the storage space of the cavity.

Optionally, the refrigeration device is a refrigerator, an ice chest or a wine cabinet, and when the refrigerator is a single-door refrigerator, a side-by-side refrigerator or a multi-door refrigerator.

Drawings

Fig. 1 is a partial structural schematic diagram of a refrigeration apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic view of the containment case of FIG. 1 with an attached resilient member;

FIG. 3 is a schematic structural view of the resilient pad of FIG. 1;

FIG. 4 is a schematic structural view of another elastic cushion block;

fig. 5 is a partial structural schematic view of the vacuum pump and the housing case.

Detailed Description

As described in the background, the existing refrigeration equipment is noisy during the evacuation process. In order to solve the above problems, the present invention proposes: the vacuum pump is placed in a containing shell, the containing shell is placed in an accommodating space at least limited by two opposite walls, the two opposite walls are connected to the containing shell through at least one elastic piece respectively, the shell and the shell are buffered in the vacuumizing process through the elastic pieces, the noise is reduced, the two elastic pieces extend in a wave shape or a zigzag shape between the wall of the accommodating space and the containing shell, the bearable deformation of the elastic pieces is increased, the vibration of each dimension can be effectively reduced, and the noise reduction is facilitated.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Example one

Fig. 1 is a schematic partial structure diagram of a refrigeration apparatus 1 according to a first embodiment. Referring to fig. 1, the refrigerating apparatus 1 includes a housing 11 defining an evacuable chamber 110 and a vacuum pump 12 for evacuating the chamber 110, the vacuum pump 12 being disposed in a receiving case 13, the receiving case 13 being disposed in a receiving space 14 defined by at least a pair of oppositely disposed walls 141, 142; the walls 141, 142 are connected to the housing shell 13 by two elastic members 15, and the elastic members 15 extend between the walls 141, 142 and the housing shell 13 in a wave shape.

The housing 11, the vacuum pump 12 and the accommodating case 13 form a vacuum storage unit.

Each component is described below.

Referring to fig. 1, the outer wall of the housing 11 encloses a recessed area 11a recessed toward the chamber 110, and in the present embodiment, the accommodating case 13 is completely recessed in the recessed area 11a, i.e., the recessed area 11a forms the accommodating space 14 for accommodating the case 13. In other embodiments, the accommodating case 13 may be partially recessed in the recessed area 11a and partially disposed outside the recessed area 11 a.

The above-mentioned housing shell 13 is completely or partially recessed in the recessed area 11a, with the advantage that: the housing 11 and the accommodating case 13 partially or completely accommodated in the recessed area 11a may be combined into a standard vacuum storage unit, which has good compatibility with the refrigeration equipment in a manner of being separately disposed, and refrigeration equipment of different platforms/models may be added as required, such as a single-door refrigerator, a side-by-side refrigerator or a multi-door refrigerator, without performing a specific adjustment on the position of the accommodating case 13 and the buffer structure between the accommodating case 13 and the wall of the accommodating space 14 according to different internal structures of the refrigeration equipment.

Since the vacuum pump 12 in the present embodiment is housed in the housing case 13, the vacuum pump 12 is shown by a broken line in fig. 1.

In this embodiment, as shown in fig. 1, the recessed area 11a is located on the rear wall of the housing 11, and the evacuation tube connecting the vacuum pump 12 and the housing 11 enters the chamber 110 through a through hole provided on the rear wall of the housing 11. The vacuum-pumping pipe can be a hose 17 or a rigid pipe, and compared with the rigid pipe, the hose 17 is easy to be connected with the vacuum pump 12 in a joint mode, and the containing shell 13 and the shell 11 can be prevented from being broken due to vibration in the vacuum-pumping process. In other embodiments, the recessed area 11a may be located on one or more other walls of the housing 11.

Still referring to fig. 1, in the present embodiment, the recessed area 11a has four walls defining the accommodating space 14 for accommodating the housing 13, wherein two walls 141, 142 are opposite to each other, and the two opposite walls 141, 142 are connected by a third wall 143. In other embodiments, the recessed area 11a may also have a plurality of walls, and the accommodating space 14 is defined by the plurality of walls.

Fig. 2 is a schematic structural view of the receiving case of fig. 1 and an elastic member connected thereto. In this embodiment, the elastic member 15 is a sheet rubber and extends in a wave shape, and it is understood that in other embodiments, a zigzag extension may be adopted. In addition, the thickness and the width in the front-rear direction of the sheet rubber can be adjusted as required.

Referring to fig. 1 and 2, the left elastic member 15 has one end connected to the wall 141 and the other end connected to the outer wall 131 of the accommodating case opposite to the wall 141, and the right elastic member 15 has one end connected to the wall 142 and the other end connected to the outer wall 132 of the accommodating case opposite to the wall 142. In other embodiments, the other end of the elastic element 15 can be connected to any place of the accommodating shell 13, and compared to the latter solution, the structure in this embodiment can avoid the long length of the elastic element 15, reduce the cost, and effectively buffer the relative movement between the accommodating shell 15 and the two opposite walls 141, 142, because: the movement of the containing shell 13 towards one of the two opposite walls 141, 142, for example to the left, necessarily presses the elastic element 15 between this wall 141 and the containing shell outer wall 131, while pulling the elastic element 15 between the other wall 142 and the containing shell outer wall 132, whereas the movement to the right, i.e. the movement of the containing shell 13 in one direction is damped by the two elastic elements 15 with opposite deformations, with high damping efficiency.

In this embodiment, the two opposite walls 141, 142 are respectively connected to the outer wall of the accommodating case 13 by using one elastic member 15, and in other embodiments, each of the walls 141, 142 may be connected to the outer wall of the accommodating case 13 by two or more elastic members 15.

With continued reference to fig. 1 and fig. 2, the two opposite walls 141 and 142 each have a first groove 161, and the outer wall of the accommodating case 13, specifically the outer walls 131 and 132, has a second groove 162, and the first groove 161 and the second groove 162 are respectively used for inserting the two ends of the elastic element 15. Specifically, two ends of the elastic element 15 are respectively inserted into the first groove 161 and the second groove 162. The above structure has the advantages that: on one hand, the relative displacement between the housing 11 and the accommodating shell 13 caused by the vibration generated by the vacuum pump 12 during the vacuum pumping process is relatively small in all dimensions, and the elastic member 15 cannot be pulled out even if the two ends of the elastic member 15 are not fixed after being inserted into the first groove 161 and the second groove 162; on the other hand, the elastic member 15 is detachably connected, which is advantageous for the maintenance or replacement of the joint of the vacuum pump 12, because the joint of the vacuum pump 12 is located outside the housing 13, in which case the housing 13 needs to be removed for the maintenance or replacement of the joint of the vacuum pump 12. In the specific implementation process, the first groove 161 and the second groove 162 may also have a structure with a small opening and a large bottom, that is, the elastic member 15 is not easy to be removed after sliding into the two grooves from one end of the groove. Of course, the elastic element 15 can also be fixed at two ends by the first groove 161 and the second groove 162, even by self-tapping screws, glue, etc. to fix the elastic element 15 on the two opposite walls 141, 142 and the outer walls 131, 132 of the accommodating shell.

As shown in fig. 1, the first and second grooves 161 and 162 extend in the front-rear direction and have outer and inner ends, respectively, the inner end being the end close to the third wall 143 and the outer end being the end far from the third wall 143. After the elastic member 15 is inserted into the first and second grooves 161 and 162, in order to prevent the accommodating case 13 from being displaced in the front-rear direction, first stoppers 161a are further provided at both ends of the first groove 161, and second stoppers 162a are further provided at the outer ends of the second groove 162. Specifically, the first blocking member 161a at the outer end of the first groove 161 is a blocking piece, and the first blocking member 161a at the inner end is served by the transition wall 144 between the two opposite walls 141, 142 and the third wall 143, respectively, in other embodiments, the third wall 143 may serve as the blocking piece, and even the blocking piece may be disposed at the inner end of the first groove 161. The second stopper 162a at the outer end of the second groove 162 is also a stopper. In other embodiments, a second stop may also be provided at the inner end of the second groove 162, and the second stop may also be a stop, for example.

Still referring to fig. 1, a resilient pad 18 is also provided between the bottom wall 133 of the receiving case 13 (shown in fig. 5) and the outer wall of the housing 11. Fig. 3 is a schematic structural view of the resilient pad of fig. 1. Referring to fig. 3, the resilient pad 18 includes a main body 181, and a plurality of first resilient strips 182 and second resilient strips 183 connected to the main body 181 and extending in opposite directions, wherein a gap is formed between each adjacent first resilient strip 182 and each adjacent second resilient strip 183. The resilient pad 18 with its gap allows for greater deformation and better cushioning than a solid resilient pad. When the elastic cushion block 18 is arranged, the position relationship between the elastic cushion block 18 and the accommodating shell bottom wall 133 and the outer wall of the housing 11 is as shown in fig. 1, the accommodating shell bottom wall 133 and the outer wall of the housing 11 are respectively located at the free extending ends of the first elastic strip 182 and the second elastic strip 183 to buffer the vibration of the first elastic strip and the second elastic strip in the vertical direction, and the elastic cushion block 18 can be arranged in other manners besides the above arrangement manner.

Fig. 4 is a schematic view of a structure with another elastic cushion block. The difference from the elastic cushion block in fig. 3 is that: the first elastic strips 182 and the second elastic strips 183 are distributed in a staggered manner, so that the vibration in the vertical direction is further buffered.

Fig. 5 is a partial structural schematic view of the vacuum pump and the housing case. Referring to fig. 5, the vacuum pump 12 is fixed to the bottom wall 133 of the housing case 13 by a screw 19, and an elastic spacer 10 is provided between a bolt 19a of the screw 19 and the bottom wall 133 of the housing case 13. The elastic pad 10 can buffer the vibration between the vacuum pump 12 and the housing case 13.

Example two

The refrigeration equipment provided by the second embodiment is substantially the same as the refrigeration equipment in the first embodiment in structure. The difference lies in that: the receiving case 13 is placed in the compressor compartment, the vacuum pump 12 is connected to the chamber 110 through a long evacuation tube, and the wall defining the receiving space 14 is not an outer wall of the housing 11 but an inner wall of the compressor compartment to which one end of the elastic member 15 is connected, accordingly.

The benefits of the above scheme are: the compressor has large indoor space, can be used for placing the accommodating shell 13, and does not occupy the storage space of the chamber 110.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A refrigerating apparatus (1) comprising a casing (11) defining an evacuable chamber (110) and a vacuum pump (12) for evacuating said chamber (110), said vacuum pump (12) being arranged inside a containment casing (13), said containment casing (13) being placed inside a containment space (14) defined at least by a pair of oppositely arranged walls (141, 142);

the method is characterized in that: the walls (141, 142) are connected to the receiving housing (13) by at least two elastic elements (15), wherein the elastic elements (15) extend between the walls (141, 142) and the receiving housing (13) in a wave-like or zigzag manner.

2. A cold appliance (1) according to claim 1, wherein the resilient member (15) is connected between the wall (141, 142) and an outer wall (131, 132) of the containment casing opposite the wall (141, 142).

3. A cold appliance (1) according to claim 1, wherein the two opposite walls (141, 142) have a first recess (161) and the outer wall (131, 132) of the containment casing has a second recess (162), the first recess (161) and the second recess (162) being respectively adapted to be inserted at both ends of the elastic element (15).

4. A cold appliance (1) according to claim 3, wherein the first recess (161) has first stops (161a) at both ends.

5. A cold appliance (1) according to claim 4, wherein the receiving space (14) is further defined by a third wall (143) connecting the two opposite walls (141, 142), the first recess (161) comprising an inner end close to the third wall (143) and an outer end remote from the third wall (143), the first stop (161a) at the outer end being a stop and the first stop (161a) at the inner end being the third wall (143).

6. A cold appliance (1) according to claim 3, wherein the second recess (162) has second stops (162a) at both ends.

7. A cold appliance (1) according to claim 6, wherein the second barrier (162a) is a barrier.

8. A cold appliance (1) according to claim 5, wherein the second recess (162) comprises an outer end remote from the third wall (143) and a stop at the outer end.

9. A refrigerating apparatus (1) as in claim 1, characterized by the fact that the outer wall of the housing (11) encloses a recessed area (11a) recessed towards the chamber (110), said recessed area (11a) forming the housing space (14), the elastic element (15) being connected at one end to the outer wall of the housing (11).

10. A cold appliance (1) according to claim 9, wherein the recessed area (11a) is located at the rear of the housing (11).

11. A cold appliance (1) according to claim 1, wherein a resilient pad (18) is further provided between the bottom wall (133) of the containment vessel (13) and the outer wall of the housing (11).

12. A cold appliance (1) according to claim 11, wherein the resilient pad (18) comprises a body portion (181), a plurality of first resilient strips (182) and second resilient strips (183) connected to the body portion (181) and extending in opposite directions, wherein a gap is provided between each adjacent first resilient strip (182) and each adjacent second resilient strip (183).

13. Refrigeration device (1) according to claim 12, characterized in that the first elastic strip (182) is offset from the second elastic strip (183).

14. Refrigeration appliance (1) according to claim 1, characterized in that said vacuum pump (12) is fixed to the bottom wall (133) of said containment casing (13) with screws (19), said screws (19) having elastic gaskets (10) between the bolts (19a) of said screws (19) and the bottom wall (133) of said containment casing (13).

15. A cold appliance (1) according to claim 1, further comprising a compressor chamber forming the receiving space (14).