CN111473564A

CN111473564A - Refrigerating and freezing device

Info

Publication number: CN111473564A
Application number: CN201910064930.6A
Authority: CN
Inventors: 杨春; 夏恩品; 张�浩; 陈建全
Original assignee: Qingdao Haier Co Ltd; Qingdao Haier Refrigerator Co Ltd
Current assignee: Qingdao Haier Co Ltd; Qingdao Haier Refrigerator Co Ltd
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2020-07-31
Also published as: WO2020151565A1

Abstract

The invention provides a refrigerating and freezing device. A refrigerating and freezing device includes: the air pump box is arranged on the box body and is provided with an opening box body; the open box body is provided with a placing wall which is positioned at the lower side and extends along the horizontal direction; the mounting columns are arranged on the placing wall of the opening box body; a plurality of shock absorbing pads, each shock absorbing pad being mounted to one mounting post; a support plate installed at the plurality of shock pads; the air pump is arranged on the upper side of the supporting plate, and the air pump and each wall body of the opening box body are arranged at intervals; the air inlet of the air pump is communicated with the air regulating membrane component. Because the air pump box is arranged, the air pump is arranged on the air pump box through a special structure and is arranged at an interval with the air pump box, the noise generated when the air pump operates per se is obviously reduced, the operation noise of the air pump is reduced and is transmitted to the outside, for example, the vibration of the air pump is reduced and is transmitted to the box body, and then the noise generated in the air-conditioning and fresh-keeping process and the noise generated in the refrigerating and freezing device are reduced.

Description

Refrigerating and freezing device

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerating and freezing device.

Background

The function of a refrigeration and freezing device is to provide a low temperature environment to extend the shelf life of the product. At present, in order to further improve the preservation time and the preservation effect, the technical personnel in the field design a refrigeration and freezing device with a modified atmosphere preservation space. The modified atmosphere device comprises a modified atmosphere film and an air pump, so that oxygen-enriched and high-humidity gas passes through the upper surface and the lower surface of the modified atmosphere film, and a large amount of oxygen is discharged from a fresh-keeping space on the surface of the modified atmosphere film, thereby forming a gas atmosphere favorable for keeping food fresh. However, the inventors found that the operation noise becomes significantly large after the modified atmosphere technology is adopted. Therefore, how to reduce the noise of the refrigerating and freezing device is also an urgent problem to be solved

Disclosure of Invention

In view of the above, the present invention has been developed to provide a refrigeration and freezing apparatus that overcomes, or at least partially solves, the above-mentioned problems.

The invention aims to provide a refrigerating and freezing device with a controlled atmosphere preservation function, and noise in a controlled atmosphere preservation process is reduced.

Further, it is a further object of the present invention to reduce the outward transmission of the operating noise of the suction pump.

In order to achieve at least one of the above objects, the present invention provides a refrigeration and freezing apparatus, including a box, a modified atmosphere module and a pumping pump assembly, wherein the box has a modified atmosphere space therein, the pumping pump assembly and the modified atmosphere module are mounted on the box, and the pumping pump assembly is communicated with the modified atmosphere space via the modified atmosphere module, so as to pump more oxygen out of the modified atmosphere space relative to nitrogen; wherein, the pump subassembly that bleeds includes:

the air pump box is arranged on the box body and is provided with an opening box body; the open box body is provided with a placing wall which is positioned at the lower side and extends along the horizontal direction;

a plurality of mounting posts disposed on the placement wall of the open box;

a plurality of shock absorbing pads, each shock absorbing pad being mounted to one of the mounting posts;

a support plate installed to the plurality of shock-absorbing pads; and

the air pump is arranged on the upper side of the supporting plate, and the air pump and each wall body of the opening box body are arranged at intervals; and the air inlet of the air pump is communicated with the air-conditioning membrane component.

Optionally, each shock pad has an upper elastic body, a lower elastic body, and a connecting elastic body connecting the upper elastic body and the lower elastic body;

the outer diameter of the peripheral wall of the connecting elastic body is smaller than that of the peripheral wall of the lower elastic body; and the outer diameter of the peripheral wall of the connecting elastic body is smaller than that of the upper elastic body;

the supporting plate is provided with a plurality of mounting holes, each connecting elastic body is mounted in one mounting hole, and the upper elastic body and the lower elastic body are in contact abutting contact with the supporting plate.

Optionally, each of the shock-absorbing pads has a plurality of first through holes, and the plurality of first through holes are uniformly arranged along the circumferential direction of the corresponding mounting column;

the upper surface and the lower surface of each shock pad all have a plurality of archs, a plurality of the arch is evenly arranged along corresponding the circumferential direction of erection column.

Optionally, the opening of the open box body faces forwards or backwards, and one side wall of the open box body is the placing wall;

the erection column with the shock pad is four, set up in four corners department of backup pad.

Optionally, the upper elastic body and the lower elastic body each include:

the inner column part is sleeved on the mounting column;

the annular connecting plate part is connected to the inner column part and is in contact and abutted with the supporting plate; and

and the outer ring supporting part extends from the outer edge of the annular connecting plate part to the direction far away from the supporting plate.

Optionally, the air pump is spaced from the upper surface of the support plate.

Optionally, the suction pump is mounted to the support plate by two risers.

Optionally, a second through hole is arranged on the support plate;

and the two vertical plates are arranged in parallel and respectively extend upwards from two oppositely arranged hole edges of the second through hole to form.

Optionally, the air pump box further comprises a box cover, and the box cover is covered at the opening of the opening box body; and a sealing gasket is arranged between the box cover and the opening box body.

Optionally, the open box body is a first open box body, the air pump box further comprises a second open box body and a box cover, the first open box body is mounted on the second open box body through four rubber pads, and an opening of the first open box body faces to the bottom wall of the second open box body; the box cover is arranged on the second opening box body.

Optionally, a first storage compartment is further arranged in the box body; the air-conditioned fresh-keeping space is arranged at the bottom of the first storage chamber;

the air pumping pump assembly is arranged at the rear part of the air-conditioned fresh-keeping space.

Optionally, the box body is further provided with a first inner container, and the inner side of the first inner container defines the first storage compartment; the bottom of the rear wall of the first inner container is provided with a through hole for installation;

the opening of the opening box body faces forwards and is arranged in the through hole for installation; and a foaming layer is arranged on the outer side of the opening box body.

Optionally, a second storage compartment is further arranged in the box body, and the second storage compartment is arranged on the lower side of the first storage compartment;

the first storage compartment is a refrigerating chamber, and the second storage compartment is a freezing chamber.

Optionally, the box body further comprises a storage container with a front opening, and a drawer mounted in the storage container; the drawer is internally provided with the air-conditioning fresh-keeping space

In the refrigerating and freezing device, the air pump box is arranged, the air pump is arranged on the air pump box through a special structure and is arranged at an interval with the air pump box, so that the noise generated when the air pump operates per se is obviously reduced, the outward transmission of the operating noise of the air pump is reduced, for example, the vibration of the air pump is reduced and is transmitted to the box body, and further, the noise generated in the air-conditioning and fresh-keeping process and the noise generated in the refrigerating and freezing device are reduced.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic diagram of a refrigeration chiller according to one embodiment of the present invention;

FIG. 2 is a schematic block diagram of another perspective of the structure shown in FIG. 1;

fig. 3 is a schematic view of a first inner container of a refrigerating and freezing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the construction of a pump assembly in a refrigeration chiller according to one embodiment of the present invention;

FIG. 5 is a schematic view of a portion of the pump assembly shown in FIG. 4;

FIG. 6 is another partial schematic structural view of the suction pump assembly of FIG. 4;

figure 7 is a schematic block diagram of a shock pad in the suction pump assembly of figure 4.

Detailed Description

Fig. 1 and 2 are schematic structural views of a refrigerating and freezing apparatus according to an embodiment of the present invention. As will be appreciated by those skilled in the art, fig. 1 shows a front view of the refrigeration and freezing apparatus, fig. 2 shows a rear view of the refrigeration and freezing apparatus, and in the refrigeration and freezing apparatus shown in fig. 1 and 2, a door and the like of the refrigeration and freezing apparatus are not shown in order to illustrate one embodiment of the present invention. As shown in fig. 1 and 2, and with reference to fig. 3-7, an embodiment of the present invention provides a refrigeration and freezing apparatus including a tank 20, a modified atmosphere module, and a suction pump module 30. The box body 20 is internally provided with a controlled atmosphere preservation space 25, the air suction pump assembly 30 and the controlled atmosphere membrane assembly are arranged on the box body 20, and the air suction pump assembly 30 is communicated with the controlled atmosphere preservation space 25 through the controlled atmosphere membrane assembly so as to pump more oxygen in the gas in the controlled atmosphere preservation space 25 out of the controlled atmosphere preservation space 25 than nitrogen. The modified atmosphere space 25 may be a closed space or a near closed space.

For example, the box body 20 further has a first storage compartment 24, a second storage compartment, and a compressor compartment therein. The second storage compartment is arranged at the lower side of the first storage compartment 24, and the compressor bin is arranged at the lower rear part of the second storage compartment. The modified atmosphere space 25 may be disposed at the bottom of the first storage compartment 24. The air pump assembly 30 is disposed at the rear of the modified atmosphere fresh-keeping space 25. The first storage compartment 24 is a refrigerator compartment and the second storage compartment is a freezer compartment. Further, the case 20 further includes a storage container 26 having a front opening, and a drawer mounted in the storage container 26. The space in the drawer is the air-conditioning and fresh-keeping space 25.

In particular, as shown in FIG. 5, the suction pump assembly 30 may include a pump box 31, a plurality of mounting posts, a plurality of shock pads 32, a support plate 33, and a suction pump 34. The air pump cassette 31 is mounted to the case 20, and the air pump cassette 31 has an open cassette body 311. The open box 311 has a placement wall at the lower side and extending in the horizontal direction. For example, when the opening of the open box 311 faces forward or backward, one sidewall of the open box 311 is a placing wall. The plurality of mounting posts are disposed on the placement wall of the opening box 311, alternatively, the placement wall may also be disposed in the opening box 311, and may be spaced apart from the box wall of the opening box 311 that is disposed parallel to the placement wall. Each cushion 32 is fitted over one of the mounting posts. The support plate 33 is mounted to the plurality of cushion pads 32. For example, four mounting posts and shock absorbing pads 32 are provided at the four corners of the support plate 33. The suction pump 34 is installed on the upper side of the supporting plate 33, and the suction pump 34 is spaced apart from each wall of the open case 311. The air inlet of the air pump 34 is communicated with the air regulating membrane component. The vibration and noise of the air pump 34 during operation can be reduced, and the stability and the user experience of the air pump 34 can be improved.

The refrigerating and freezing device in the embodiment of the invention is provided with the air pump box 31, the air pump 34 is arranged on the air pump box 31 through a special structure and is arranged at an interval with the air pump box 31, so that the noise generated when the air pump 34 operates is obviously reduced, the outward transmission of the operating noise of the air pump 34 is reduced, for example, the vibration transmission of the air pump 34 to the box body 20 is reduced, and further, the noise generated in the air conditioning and fresh keeping process and the noise generated in the refrigerating and freezing device are reduced.

In some embodiments of the present invention, as shown in fig. 5 and 6, each cushion 32 has an upper elastic body, a lower elastic body, and a connection elastic body connecting the upper elastic body and the lower elastic body. The outer diameter of the peripheral wall of the connecting elastic body is smaller than that of the peripheral wall of the lower elastic body. And the outer diameter of the peripheral wall of the connecting elastic body is smaller than that of the upper elastic body. The support plate 33 has a plurality of mounting holes, each of the connection elastic bodies is mounted to one of the mounting holes, and both the upper elastic body and the lower elastic body are in contact abutment with the support plate 33.

In some embodiments of the present invention, as shown in fig. 6 and 7, each cushion 32 has a plurality of first through holes 321 that are uniformly arranged in a circumferential direction of the corresponding mounting post. The upper and lower surfaces of each cushion 32 have a plurality of protrusions 322, and the plurality of protrusions 322 are uniformly arranged in the circumferential direction of the corresponding mounting post. Each cushion 32 may be a rubber pad. The open cassette 311 may be a plastic cassette. The mounting posts provided on the open box 311 are used for positioning. The suction pump 34 is positioned by pressing the weight of the suction pump 34 itself, the mounting post, and the cushion 32 in the vertical direction. The vacuum pump is in contact with the open box 311 only through 4 shock pads 32. Gaps are reserved around the vibration damping device, and vibration propagation is prevented.

In some alternative embodiments of the present invention, the upper and lower elastic bodies each include an inner pillar portion, an annular web portion, and an outer race support portion. The inner column is sleeved on the mounting column. The annular web portion is connected to the inner column portion and is in contact abutment with the support plate 33. The outer ring support portion extends from the outer edge of the annular web portion in a direction away from the support plate 33, and the distal end face of the outer ring support portion may be flush with the distal end face of the corresponding inner post portion.

In some embodiments of the present invention, as shown in fig. 5 and 6, the suction pump 34 is spaced apart from the upper surface of the support plate 33. For example, the suction pump 34 is mounted to the support plate 33 via two risers 35. Further, a second through hole is provided on the support plate 33. The two vertical plates 35 are arranged in parallel and respectively extend upwards from two oppositely arranged hole edges of the second through hole to form. The support plate 33 and the riser 35 are integrally formed, and may be a sheet metal part.

In order to further reduce noise, the air pump case 31 further includes a case cover 312 covering the opening of the open case body 311. And a sealing gasket is provided between the cap 312 and the open case 311. Is used for sealing the opening box 311, so that the air pump 34 is in a closed environment, and the noise generated when the air pump 34 works is reduced. In some optional embodiments, the open box body is a first open box body, the air pump box further comprises a second open box body and a box cover, the first open box body is mounted on the second open box body through four rubber pads, and the opening of the first open box body faces to the bottom wall of the second open box body. The box cover is arranged on the second opening box body. In some embodiments of the invention, the opening of the first open box body is also provided with a box cover.

In some embodiments of the present invention, the tank 20 also has a first liner 21 and a second liner. A first storage compartment 24 and a second storage compartment are defined in the first liner 21 and the second liner, respectively. As shown in fig. 3, the first inner bag 21 has a mounting through hole 211 at the bottom of the rear wall. The opening case 311 has a front opening and is attached to the mounting through hole 211. The outer side of the open box 311 is a foaming layer. When the embedded box is installed, the opening box 311 may be installed in the installation through hole 211 first, and then foamed to form the embedded box. With opening box body 311 set up and stretch into the foaming layer behind the installation opening in, not only can save cold-stored freezer's space, can also utilize the noise insulation effect of opening box body 311 itself and the noise insulation effect on foaming layer to greatly reduce the noise that aspiration pump 34 sent to and prevent the propagation of the sound of breathing in and the sound of exhausting. The noise transmission between the rear back plate and the rear back plate is also isolated, and the large plane of the rear back plate can be equivalent to a vibration amplifier, so that the rear back plate cannot cause vibration amplification after isolation, and further cannot generate noise due to vibration.

Further, the open cassette 311 has an opening on the upper cassette wall for mounting the power supply 36 of the suction pump 34, and the power supply 36 is used for supplying power to the suction pump 34.

In some embodiments of the present invention, the rear central region of the first inner container 21 is recessed rearward to form an air duct of the refrigeration and freezing device, and the open box 311 is disposed at the outer region of the air duct and located at the lower right side of the air duct, so that the open box 311 does not occupy the storage space and the air duct of the refrigeration and freezing device, thereby fully utilizing the space.

In some embodiments of the present invention, the box wall of the open box 311 is provided with an air-extracting communication portion for communicating the inside and the outside of the open box 311, one end of the air-extracting communication portion located inside the open box 311 is connected to the air-extracting opening of the air-extracting pump 34, and the refrigerating and freezing device further comprises an air-extracting pipe 37, a first end of which is connected to one end of the air-extracting communication portion located outside the open box 311, and extends through the foaming layer, and a second end of which is connected to the interface 23 of the first inner container 21 to the air-conditioned insurance space. The air exhaust pipe 37 penetrates through the foaming layer, and noise in the air exhaust process is reduced by using the sound insulation effect of the foaming layer.

Still be provided with the inside and outside exhaust intercommunication portion of intercommunication opening box body 311 on the box wall of opening box body 311, the one end that the exhaust intercommunication portion is located opening box body 311 is connected to the gas vent of aspiration pump 34, and cold-stored refrigeration device still includes blast pipe 38, and its first end is connected the one end that the exhaust intercommunication portion is located opening box body 311 outside, and extend and wear to locate in the foaming layer, through the syllable-dividing effect on foaming layer, reduce the noise of exhaust process, and make its second end lead to cold-stored refrigeration device's compressor storehouse.

In some embodiments of the present invention, at least a portion of the exhaust pipe 38 is arranged side by side with at least a portion of the drain pipe 22 of the refrigeration and freezing device for draining the air duct behind the first storage compartment 24, so that the exhaust pipe 38 is guided by the drain pipe 22 for easy installation and fixation, thereby preventing the exhaust pipe 38 from being displaced for long-term use to discharge the oxygen-enriched gas to the compressor compartment of the refrigeration and freezing device, and preventing additional piping in the foaming layer to reduce the thermal insulation performance of the foaming layer. For example, the exhaust pipe 38 may be tied to the drain pipe 22 or a grommet or the like may be provided on the outer wall of the drain pipe 22 so that the exhaust pipe 38 may be guided by the drain pipe 22 to discharge the gas to the compressor compartment.

In this embodiment, the portions of the air exhaust pipe 38 and the air exhaust pipe 37 of the air exhaust pump 34 located outside the open box 311 are inserted into the foam layer, so that the noise in the air intake process and the air exhaust process can be effectively reduced. At least part of the length of the gas exhaust line 38 is arranged alongside at least part of the length of the water discharge line 22 of the refrigerator freezer for discharging the oxygen-enriched gas to the compressor compartment of the refrigerator freezer. The arrangement of the exhaust pipe 38 is beneficial to the installation and fixation of the exhaust pipe 38, the position change of the exhaust pipe 38 caused by long-term use is avoided, and the additional arrangement of a pipeline on a foaming layer is avoided, so that the heat insulation effect of the foaming layer is reduced.

In some embodiments of the present invention, the storage container 26 may include a receiving chamber and an ion generating device. Although other locations or structures within the housing 20 may define the receiving cavity. The receiving cavity is in communication with the modified atmosphere space 25 such that gas flows between the modified atmosphere space 25 and the receiving cavity. The modified atmosphere membrane component is arranged in the accommodating cavity. The ion generating means is configured to be activated to ionize the gas within the receiving chamber to generate an odor elimination sterilizing substance, and the odor elimination sterilizing substance flows with the gas to sterilize or deodorize the receiving chamber and/or the modified atmosphere space 25. The odor-removing and sterilizing substance flows with the gas to sterilize or deodorize the receiving cavity and/or the modified atmosphere fresh-keeping space 25. If the ion generating device changes water vapor and oxygen into ions with strong oxidizing capability, the mould substances in the controlled atmosphere preservation space 25 are removed after sufficient circulation, the controlled atmosphere efficiency and the preservation period are greatly improved, and the taste of the fruits and vegetables can be more comprehensively maintained.

In some embodiments of the invention, the refrigeration freezer comprises a fan. A first ventilation structure and a second ventilation structure are arranged between the accommodating cavity and the atmosphere-controlled preservation space 25 so as to respectively communicate the accommodating cavity and the atmosphere-controlled preservation space 25 at different positions. The fan is configured to cause air in the modified atmosphere space 25 to return to the modified atmosphere space 25 via the first venting structure, the receiving cavity, and the second venting structure in that order. Furthermore, a diversion air duct is arranged between the fan and the modified atmosphere membrane component to promote the gas flowing out of the fan to flow to the modified atmosphere membrane component. And an opening is arranged on the air duct wall of the diversion air duct. The ion generating part of the ion generating device is arranged at the opening. The control part of the ion generating device is arranged in the accommodating cavity and is positioned outside the diversion air channel, and the air channel wall blocks the gas flowing direction control part entering the accommodating cavity. Damage and failure of the control section by the cooled gas or high humidity environment can be prevented, and particularly, moisture in the cooled gas is prevented from entering the control section. The control part does not occupy the space of the guide air duct, and air supply is smooth. The first venting structure includes at least one first vent hole and the second venting structure includes at least one second vent hole. At least one first vent hole and at least one second vent hole are arranged in the partition wall between the accommodating cavity and the air-conditioned space 25. The fan is centrifugal fan, sets up in holding the intracavity, and centrifugal fan's air intake towards at least one first air vent. The modified atmosphere assembly is preferably flat and parallel to the dividing wall between the receiving chamber and the modified atmosphere space 25.

In some embodiments of the present invention, the control portion of the ion generating device has a control circuit module including: the deodorizing and sterilizing device comprises a power input interface, a booster circuit and a high-voltage output interface, wherein the power input interface is used for connecting an externally provided direct-current power supply, the booster circuit is used for controllably converting the direct-current power supply into a first voltage for generating a deodorizing and sterilizing substance and a second voltage for heating, and the high-voltage output interface is used for outputting the first voltage or the second voltage, wherein the first voltage is higher than the second voltage. And the high-voltage output interface is connected with the ion generating part. The ion generating portion is configured to be excited by the first voltage to ionize the gas to generate the odor removing and sterilizing substance and to emit heat at the second voltage to eliminate condensation. The ion generating portion may include a first electrode and a second electrode connected to the control portion, with a discharge gap therebetween, the discharge gap configured to be broken down by a first voltage such that ambient gas is excited to ionize. And maintaining the first electrode isolated from the second electrode and each generating heat at a second voltage. The control portion and the ion generating portion may be connected by a cable.

In some embodiments of the present invention, the control circuit module further comprises a voltage feedback port, a controlled terminal, and an inverter. The voltage feedback port is connected with the booster circuit and used for outputting feedback voltage corresponding to the first voltage or the second voltage so as to indicate the boosting state of the booster circuit. The controlled end is connected with the boost circuit and configured to receive an external control signal (the control signal may be a control signal sent by a main control board of the refrigeration and freezing device or a controller of another refrigeration and freezing device and is used for adjusting the working state of the ion generating device according to the running condition of the refrigeration and freezing device), so that the boost circuit converts the first voltage or the second voltage according to the control signal. The inverter is configured to controllably invert the direct current power source into alternating current power having a voltage of either a first voltage or a second voltage.

It will be understood by those skilled in the art that the term "refrigerator-freezer" as used herein is not limited to a refrigerator-freezer in the general sense of having a freezer compartment and a refrigerator compartment for storing food, but may be other devices having a refrigeration function, such as wine chests, cold-storage tanks, etc.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A refrigerating and freezing device comprises a box body, a modified atmosphere module and an air extraction pump assembly, wherein a modified atmosphere space is arranged in the box body, the air extraction pump assembly and the modified atmosphere module are arranged in the box body, and the air extraction pump assembly is communicated with the modified atmosphere space through the modified atmosphere module so as to extract more oxygen in the gas in the modified atmosphere space out of the modified atmosphere space relative to nitrogen; characterized in that, the pump subassembly that bleeds includes:

the air pump box is arranged on the box body and is provided with an opening box body; the open box body is provided with a placing wall extending along the horizontal direction;

a plurality of mounting posts disposed on the placement wall of the open box;

a support plate installed to the plurality of shock-absorbing pads; and

2. A refrigerator-freezer according to claim 1,

each shock pad is provided with an upper elastic body, a lower elastic body and a connecting elastic body for connecting the upper elastic body and the lower elastic body;

3. A refrigerator-freezer according to claim 1 or 2,

each shock pad is provided with a plurality of first through holes which are uniformly arranged along the circumferential direction of the corresponding mounting column;

4. A refrigerator-freezer according to claim 1,

the air pump and the upper surface of the supporting plate are arranged at intervals.

5. A refrigerator-freezer according to claim 4,

the air pump is installed in the supporting plate through two vertical plates.

6. A refrigerator-freezer according to claim 5,

the supporting plate is provided with a second through hole;

7. A refrigerator-freezer according to claim 1,

the air pump box also comprises a box cover which is covered at the opening of the opening box body; and a sealing gasket is arranged between the box cover and the opening box body.

8. A refrigerator-freezer according to claim 1,

the box body is also internally provided with a first storage compartment; the air-conditioned fresh-keeping space is arranged at the bottom of the first storage chamber;

9. A refrigerator-freezer according to claim 8,

the box body is also provided with a first inner container, and the inner side of the first inner container limits the first storage compartment; the bottom of the rear wall of the first inner container is provided with a through hole for installation;

10. A refrigerator-freezer according to claim 8,

the box body is also internally provided with a second storage chamber, and the second storage chamber is arranged at the lower side of the first storage chamber;

the first storage chamber is a refrigerating chamber, and the second storage chamber is a freezing chamber;

the box body also comprises a storage container with a forward opening and a drawer arranged in the storage container; the drawer is internally provided with the air-conditioning fresh-keeping space.