CN111473567A - Refrigerator and freezer - Google Patents

Abstract

The invention provides a refrigeration and freezing device. The refrigerating and freezing device includes: an air pump box, the air pump box is mounted on the box body, and the air pump box has an open box body; the open box body has a placement wall on the lower side and extending in a horizontal direction; a plurality of installations a protrusion, arranged on the placing wall of the open box body; a plurality of compression springs, the lower end of each compression spring is sleeved on one of the installation protrusions; a support plate is installed on the plurality of compression springs and an air suction pump, which is installed on the upper side of the support plate; the air inlet of the air suction pump communicates with the modified atmosphere membrane assembly. Because there is an air pump box, and the air pump is installed in the air pump box through a special structure, the noise of the air pump itself is significantly reduced, and the operating noise of the air pump is reduced to spread outward, such as reducing the vibration of the air pump from spreading to the box, and then Reduce the noise of the modified atmosphere preservation process and the noise of the refrigerator and freezer.

Description

Refrigerator and freezer

technical field

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

Background technique

The function of the refrigerated freezer is to provide a low temperature environment to prolong the storage time of the items. At present, in order to further improve the fresh-keeping time and the fresh-keeping effect, those skilled in the art have designed a refrigeration and freezing device with an air-conditioned fresh-keeping space. The air-conditioning device includes an air-conditioning membrane and an air pump, so that oxygen-enriched and high-humidity gas passes through the upper and lower surfaces of the air-conditioning membrane, and a large amount of oxygen is discharged from the fresh-keeping space when the gas passes through the surface of the air-conditioning membrane, forming an atmosphere conducive to food preservation. However, the inventors found that after adopting the modified atmosphere preservation technology, the operating noise became significantly larger. Therefore, how to reduce noise in refrigerating and freezing devices is also an urgent problem to be solved.

SUMMARY OF THE INVENTION

In view of the above problems, the present invention is proposed in order to provide a refrigerating and freezing apparatus that overcomes the above problems or at least partially solves the above problems.

One object of the present invention is to provide a refrigerating and freezing device with the function of air-conditioning fresh-keeping, and reduce the noise in the process of air-conditioning fresh-keeping.

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

In order to achieve at least one of the above objectives, the present invention provides a refrigeration and freezing device, comprising a box body, a modified atmosphere membrane assembly and an air extraction pump assembly, wherein the box body has an air-conditioning fresh-keeping space, the air extraction pump assembly and the air-conditioning pump assembly The membrane assembly is installed on the box body, and the air pump assembly is communicated with the air-conditioning fresh-keeping space through the air-conditioning membrane assembly, so as to make the oxygen in the air in the air-conditioning fresh-keeping space more abundant than nitrogen. The air is pumped out of the air-conditioned fresh-keeping space; wherein, the air pump assembly includes:

an air pump box, the air pump box is mounted on the box body, and the air pump box has an open box body; the open box body has a placement wall extending in a horizontal direction;

a plurality of mounting protrusions, arranged on the placing wall of the opening box;

a plurality of compression springs, the lower end of each of the compression springs is sleeved on one of the mounting protrusions;

a support plate mounted on the upper ends of the plurality of compression springs; and

The air suction pump is installed on the upper side of the support plate; the air inlet of the air suction pump is connected to the air control membrane assembly.

Optionally, each of the compression springs is in a compressed state.

Optionally, the air extraction pump assembly further includes:

two vertical plates extending downwardly from both ends of the support plate; and

two horizontal plates, respectively extending from the lower ends of the two vertical plates to the outside of the ends of the supporting plates; and

Each of the horizontal plates is provided with at least two mounting holes, and the upper end of each of the compression springs is provided in one of the mounting holes.

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

Optionally, the air pump is mounted on the support plate through two vertical plates.

Optionally, the two vertical plates are arranged in parallel, and are respectively formed to extend upward from two opposite edges of the support plate.

Optionally, the air pump box further includes a box cover, which is disposed at the opening of the open box body; and a sealing gasket is provided between the box cover and the open box body.

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

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

The air suction pump assembly is arranged at the rear of the air-conditioned fresh-keeping space.

Optionally, the box body further has a first inner liner, and the inner side of the first inner liner defines the first storage compartment; the bottom of the rear wall of the first inner liner has a through hole for installation;

The opening of the open box body faces forward and is installed in the installation through hole; the outer side of the open box body is a foam layer.

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

The first storage compartment is a refrigerator compartment, and the second storage compartment is a freezer compartment.

Optionally, the box body further includes a storage container with a forward opening, and a drawer installed in the storage container; the drawer is the air-conditioned fresh-keeping space.

In the refrigerating and freezing device of the present invention, because there is an air pump box, and the air pump is installed in the air pump box through a special structure, and is spaced from the air pump box, the noise of the air pump itself during operation is significantly reduced, as well as the operating noise of the air pump. Propagating outward, such as reducing the transmission of the vibration of the air pump to the box, thereby reducing the noise of the air-conditioned fresh-keeping process and the noise of the refrigerator and freezer.

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

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. It will be understood by those skilled in the art that the drawings are not necessarily to scale. In the attached picture:

1 is a schematic structural diagram of a refrigerating and freezing device according to an embodiment of the present invention;

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

3 is a schematic structural diagram of a first inner tank in a refrigerating and freezing device according to an embodiment of the present invention;

4 is a schematic structural diagram of an air pump assembly in a refrigerating and freezing device according to an embodiment of the present invention;

FIG. 5 is a partial structural schematic diagram of the air pump assembly shown in FIG. 4 .

Detailed ways

FIG. 1 and FIG. 2 are respectively a schematic structural diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention. As can be appreciated by those skilled in the art, FIG. 1 shows a front view of the refrigerator-freezer, FIG. 2 shows a rear view of the refrigerator-freezer, and in the refrigerator-freezer shown in FIGS. 1 and 2 , in order to illustrate an embodiment of the present invention, the door and other components of the refrigerating and freezing apparatus are not shown. As shown in FIGS. 1 and 2 , and with reference to FIGS. 3 to 5 , an embodiment of the present invention provides a refrigeration and freezing apparatus, including a box body 20 , a modified atmosphere membrane assembly, and an air pump assembly 30 . The box body 20 has an air-conditioning fresh-keeping space 25. The air pump assembly 30 and the air-conditioning membrane assembly are installed in the box body 20. The air-extracting pump assembly 30 communicates with the air-conditioning fresh-keeping space 25 through the air-conditioning membrane assembly, so as to connect the air-conditioning fresh-keeping space 25. Compared with nitrogen, more oxygen in the gas is drawn out of the air-conditioned fresh-keeping space 25 . The air-conditioned fresh-keeping space 25 may be a closed space or a nearly closed space.

For example, the box body 20 also has a first storage compartment 24, a second storage compartment and a compressor compartment. The second storage compartment is arranged on the lower side of the first storage compartment 24, and the compressor compartment is arranged at the lower rear side of the second storage compartment. The air-conditioned fresh-keeping 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 air-conditioned fresh-keeping space 25 . The first storage compartment 24 is a refrigerator compartment, and the second storage compartment is a freezer compartment. Further, the box body 20 further includes a storage container 26 having a forward opening, and a drawer installed in the storage container 26 . The inner space of the drawer is the above-mentioned air-conditioned fresh-keeping space 25 .

In particular, as shown in FIG. 5 , the air pump assembly 30 may include an air pump box 31 , a plurality of mounting protrusions, a plurality of compression springs 32 , a support plate 33 and an air pump 34 . The air pump box 31 is mounted on the box body 20 , and the air pump box 31 has an open box body 311 . The open box body 311 has a placement wall on the lower side and extending in the horizontal direction. For example, if the opening of the open box body 311 faces forward or backward, one side wall of the open box body 311 is a placement wall. Optionally, the placement wall may also be disposed in the open box body 311, and may be spaced apart from a box body wall of the open box body 311 that is disposed parallel to the placement wall. A plurality of mounting protrusions are disposed on the placing wall of the opening box 311 . The lower end of each compression spring 32 is fitted over a mounting protrusion. The support plate 33 is attached to the upper ends of the plurality of compression springs 32 . The air pump 34 is installed on the upper side of the support plate 33 , and the air pump 34 is spaced apart from each wall of the opening box 311 . The air inlet of the air pump 34 communicates with the modified atmosphere membrane assembly. The vibration and noise when the air pump 34 is working can be reduced, and the stability and user experience of the air pump 34 can be improved.

The refrigerating and freezing apparatus in the embodiment of the present invention has an air pump box 31, and the air pump 34 is installed in the air pump box 31 through a special structure, and is arranged at an interval from the air pump box 31, which significantly reduces the noise when the air pump 34 is running, and reduces the The operating noise of the small air pump 34 is transmitted to the outside, for example, the vibration of the air pump 34 is reduced and transmitted to the box 20, thereby reducing the noise of the air-conditioning fresh-keeping process and the noise of the refrigerating and freezing device.

In some embodiments of the present invention, as shown in FIG. 5, each compression spring 32 is in a compressed state. The air pump assembly 30 also includes two vertical plates 331 and two horizontal plates 332 . Two vertical plates 331 extend downward from both ends of the support plate 33 . The two horizontal plates 332 extend from the lower ends of the two vertical plates 331 to the outside of the ends of the support plates 33 respectively. Each horizontal plate 332 is provided with at least two mounting holes, and the upper end of each compression spring 32 is provided in one mounting hole. Specifically, there are four mounting protrusions and four compression springs 32 , which are respectively disposed at both ends of the two horizontal plates 332 to be disposed at the outer sides of the four corners of the supporting plate 33 . The open box body 311 can be a plastic box. The mounting protrusions provided on the open box body 311 are used for positioning. The up and down direction of the air pump 34 is pressed and positioned by the weight of the air pump 34 , the installation protrusion and the compression spring 32 . The vacuum pump is in contact with the open box body 311 only through the four compression springs 32 . There are gaps on all sides to help prevent vibration transmission.

In some embodiments of the present invention, as shown in FIG. 5 , the air pump 34 is spaced apart from the upper surface of the support plate 33 . For example, the air pump 34 is mounted on the support plate 33 through two vertical plates 35 . Further, the two vertical plates 35 are arranged in parallel, and are respectively formed to extend upward from two opposite edges of the support plate 33 . The support plate 33 , the two vertical plates 331 , the two horizontal plates 332 and the vertical plate 35 are integrally formed and can be sheet metal parts. The two vertical plates 35 are spaced apart from the box body wall of the air pump box 31 .

In order to further reduce noise, the air pump box 31 further includes a box cover 312 , which is covered at the opening of the open box body 311 . And a sealing gasket is arranged between the box cover 312 and the opening box body 311 . It is used to close the open box body 311, so that the air pump 34 is in a closed environment, so as to reduce the noise emitted by the air pump 34 when it is working. In some optional embodiments, the open box body is a first open box body, the air pump box further includes 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 the bottom wall of the second open box body. The box cover is mounted on the second open box body. In some embodiments of the present invention, the opening of the first opening box body is also provided with a box cover.

In some embodiments of the present invention, the box body 20 further has a first inner container 21 and a second inner container. A first storage compartment 24 and a second storage compartment are respectively defined in the first inner container 21 and the second inner container. As shown in FIG. 3 , the bottom of the rear wall of the first inner pot 21 has a through hole 211 for installation. The opening of the open box body 311 faces forward, and is installed in the installation through hole 211 . The outer side of the open box body 311 is a foam layer. During installation, the open box body 311 can be first installed at the through hole 211 for installation, and then foamed to form a pre-embedded box. The open box body 311 is arranged in the installation opening and then protrudes into the foam layer, which not only saves the space of the refrigerating and freezing device, but also greatly reduces the air pump by using the sound insulation effect of the open box body 311 itself and the sound insulation effect of the foam layer. 34, and prevent the transmission of suction and exhaust sounds. It also isolates the noise transmission between the back panel and the back panel. Since the large plane of the back panel can be equivalent to a vibration amplifier, after isolation, the back panel will not cause vibration amplification, and thus will not generate noise due to vibration.

Further, the box wall on the upper side of the open box body 311 has an opening for installing the power source 36 of the air pump 34 , and the power source 36 is used to provide electric power for the air pump 34 .

In some embodiments of the present invention, the central area at the rear of the first inner container 21 is concave to the rear to form an air duct of the refrigerating and freezing device, and the open box 311 is arranged in the outer area of the air duct and is located at the lower right of the air duct side, so that the open box body 311 does not occupy the storage space and the air duct position of the refrigerating and freezing device, so as to realize the full utilization of the space.

In some embodiments of the present invention, the box wall of the open box body 311 is provided with an air extraction communication part that communicates with the inside and outside of the open box body 311 , and one end of the air extraction communication part located in the open box body 311 is connected to the suction of the air extraction pump 34 . The refrigerating and freezing device also includes an air extraction pipe 37, the first end of which is connected to the end of the air extraction communication part outside the open box body 311, and extends through the foam layer, and its second end is connected to the first The inner pot 21 leads to the interface 23 of the air-conditioning insurance space. The air extraction pipe 37 is inserted into the foam layer to reduce the noise during the air extraction process by using the sound insulation effect of the foam layer.

The box wall of the open box body 311 is also provided with an exhaust communication part that communicates with the inside and outside of the open box body 311. It includes an exhaust pipe 38, the first end of which is connected to the end of the exhaust communication part located outside the open box body 311, and extends through the foam layer. Its second end leads to the compressor compartment of the refrigerating and freezing device.

In some embodiments of the present invention, at least a part of the pipe section of the exhaust pipe 38 is arranged side by side with at least a part of the pipe section of the drain pipe 22 of the refrigerating and freezing device for the drainage of the rear side air duct of the first storage compartment 24, so that the exhaust gas can be exhausted. The pipe 38 is guided by the drain pipe 22, which is convenient for installation and fixation, and avoids the positional deviation of the exhaust pipe 38 caused by long-term use, so as to discharge the oxygen-enriched gas to the compressor compartment of the refrigerating and freezing device, and avoid another in the foam layer. Set up pipelines to reduce the thermal insulation performance of the foam layer. For example, the exhaust pipe 38 can be tied to the drain pipe 22 or a structure such as a piercing ring can be arranged on the outer wall of the drain pipe 22, so that the exhaust pipe 38 can be guided by the drain pipe 22 to discharge the gas to the compressor compartment.

In this embodiment, the part of the suction pipe 37 and the exhaust pipe 38 of the suction pump 34 located outside the open box 311 is penetrated in the foam layer, which can effectively reduce the noise of the suction process and the exhaust process. At least part of the pipe section of the exhaust pipe 38 is arranged side by side with at least part of the pipe section of the drain pipe 22 of the refrigerating and freezing apparatus to discharge the oxygen-enriched gas to the compressor compartment of the refrigerating and freezing apparatus. This arrangement of the exhaust pipe 38 facilitates the installation and fixation of the exhaust pipe 38, avoids the position change of the exhaust pipe 38 caused by long-term use, and avoids setting up additional pipelines in the foam layer, thereby reducing the thermal insulation effect of the foam layer.

In some embodiments of the present invention, the storage container 26 may include a containment cavity and an ion generating device. Of course, other positions or structures in the box body 20 may also define the accommodating cavity. The accommodating cavity is communicated with the air-conditioned fresh-keeping space 25, so that gas flows between the air-conditioned fresh-keeping space 25 and the accommodating cavity. The modified atmosphere membrane assembly is arranged in the accommodating cavity. The ion generating device is configured to be excited to ionize the gas in the accommodating chamber to generate deodorizing and sterilizing substances, and the deodorizing and sterilizing substances flow with the gas to sterilize or deodorize the accommodating chamber and/or the modified atmosphere fresh-keeping space 25 . The deodorizing and sterilizing substances flow with the gas to sterilize or deodorize the accommodating cavity and/or the modified atmosphere fresh-keeping space 25 . For example, the ion generating device changes water vapor and oxygen into ions with strong oxidizing ability, and after sufficient circulation, the mold substances in the air-conditioned fresh-keeping space 25 will be removed, which greatly improves the efficiency of air-conditioning and the preservation period, and can more comprehensively Maintain the taste of fruits and vegetables.

In some embodiments of the present invention, the refrigerator freezer includes a fan. A first ventilation structure and a second ventilation structure are provided between the accommodating cavity and the air-conditioned fresh-keeping space 25 to communicate with the accommodating cavity and the air-conditioned fresh-keeping space 25 at different positions respectively. The fan is configured to cause the gas in the air-conditioned fresh-keeping space 25 to return to the air-conditioned fresh-keeping space 25 through the first ventilation structure, the accommodating cavity and the second ventilation structure in sequence. Further, a guide air duct is arranged between the fan and the modified atmosphere membrane assembly, so as to promote the gas flowing out of the fan to flow to the modified atmosphere membrane assembly. And the air duct wall of the guide air duct is provided with an opening. The ion generating part of the ion generating device is provided at the opening. The control part of the ion generating device is arranged in the accommodating cavity, and is located outside the guide air duct, and the air duct wall prevents the gas entering the accommodating cavity from flowing to the control part. The cooling gas or high humidity environment can prevent damage and failure of the control section, especially moisture in the cooling gas can be prevented from entering the control section. The control part also does not occupy the space of the air guide air duct, and the air supply is smooth. The first vent structure includes at least one first vent hole, and the second vent structure includes at least one second vent hole. At least one first ventilation hole and at least one second ventilation hole are opened in the partition wall between the accommodating cavity and the air-conditioned fresh-keeping space 25 . The fan is a centrifugal fan, which is arranged in the accommodating cavity, and the air inlet of the centrifugal fan faces at least one first ventilation hole. The modified atmosphere membrane assembly is preferably in the form of a flat plate, and is parallel to the partition wall between the accommodating cavity and the modified atmosphere fresh-keeping space 25 .

In some embodiments of the present invention, the control part of the ion generating device has a control circuit module, and the control circuit module includes: a power input interface, a booster circuit, and a high-voltage output interface, and the power input interface is used to connect an externally provided DC power supply, The booster circuit is used to controllably convert the DC power supply into a first voltage for generating deodorant and sterilizing substances 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 The voltage is higher than the second voltage. And the high voltage output interface is connected to the ion generating part. The ion generating part is configured to excite the ionized gas by the first voltage to generate a deodorant and sterilizing substance, and to generate heat at the second voltage to eliminate condensation. The ion generating part may include a first electrode and a second electrode connected to the control part, a discharge gap is disposed between the first electrode and the second electrode, and the discharge gap is configured to be broken down by the first voltage so that the surrounding gas is excited and ionized. And the first electrode is kept isolated from the second electrode at the second voltage and each generates heat. The control unit and the ion generating unit may be connected by a cable.

In some embodiments of the present invention, the control circuit module further includes a voltage feedback port, a controlled terminal and an inverter. The voltage feedback port is connected to the booster circuit, and is used for outputting a feedback voltage corresponding to the first voltage or the second voltage to indicate the booster state of the booster circuit. The controlled end is connected to the booster circuit, and is configured to receive an external control signal (the control signal can be a control signal sent by the main control board of the refrigerator or the controller of other refrigerators, and is used to adjust the work of the ion generating device according to the operation of the refrigerator. state), so that the booster 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 to alternating current at a voltage of the first voltage or the second voltage.

Those skilled in the art should understand that the “refrigerating and freezing device” referred to in the present invention is not limited to a refrigerating and freezing device having a refrigerating chamber and a freezing chamber and used to store food in a general sense, but may also be other devices having a refrigerating function , such as wine cabinets, refrigerated tanks, etc.

By now, those skilled in the art will recognize that, although various exemplary embodiments of the present invention have been illustrated and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

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 projections provided on the placement wall of the open box body;

the lower end of each compression spring is sleeved on one mounting protrusion;

a support plate installed at upper ends of the plurality of compression springs; and

the air pump is arranged on the upper side of the supporting plate; and the air inlet of the air pump is communicated with the air-conditioning membrane component.

2. A refrigerator-freezer according to claim 1,

each of the compression springs is in a compressed state.

3. A refrigerator-freezer apparatus as recited in claim 1, wherein the pump assembly further comprises:

the two vertical plates extend downwards from two ends of the supporting plate; and

the two horizontal plates extend out of the end parts of the supporting plates from the lower ends of the two vertical plates respectively; and is

At least two mounting holes are formed in each horizontal plate, and the upper end of each compression spring is arranged in one mounting hole.

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 1,

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

6. A refrigerator-freezer according to claim 5,

two riser parallel arrangement, and follow respectively upwards extend the formation in two edges of the relative setting of backup pad.

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;

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

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;

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.

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.

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