Refrigeration and freezing equipment

Abstract

The present invention provides a refrigeration and freezing device, comprising: a box body, the box body having a controlled atmosphere preservation space and a receiving chamber, and the receiving chamber is connected with the controlled atmosphere preservation space; a controlled atmosphere membrane assembly, arranged in the receiving chamber, and the controlled atmosphere membrane assembly has at least one controlled atmosphere membrane and an oxygen-rich gas collection chamber, and the surrounding space thereof is connected with the receiving chamber, the controlled atmosphere membrane assembly is configured so that the oxygen in the airflow in the space around the controlled atmosphere membrane assembly passes through the controlled atmosphere membrane to enter the oxygen-rich gas collection chamber more than the nitrogen in the airflow in the space around the controlled atmosphere membrane assembly; and an ion generator, configured to be excited to ionize the gas in the receiving chamber to generate a deodorizing and sterilizing substance. The ion generator changes water vapor and oxygen into ions with strong oxidizing ability, and after sufficient circulation, the mold substances in the controlled atmosphere preservation space will be removed, which greatly improves the efficiency of the controlled atmosphere and the preservation period, and can more comprehensively maintain the taste of fruits and vegetables.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, in particular to a refrigeration and freezing device. Background Art

[0002] The function of a refrigerator is to provide a low-temperature environment to extend the storage time of items. At present, in order to further improve the preservation time and preservation effect, technicians in this field have designed a refrigerator with a controlled atmosphere preservation space. The controlled atmosphere device includes a controlled atmosphere membrane and an air pump, which allows oxygen-rich and high-humidity gas to pass through the upper and lower surfaces of the controlled atmosphere membrane. When the gas passes through, the surface of the controlled atmosphere membrane discharges a large amount of oxygen from the preservation space. Summary of the invention

[0003] The inventors have found through research that the humidity in the atmosphere-controlled fresh-keeping space of existing refrigerators is high, and the storage time of food is 8 times that of normal food. During the long storage process, the growth of molds will be more risky. After the fungi survive, they will continue to multiply inside the fresh-keeping space, destroying the atmosphere-controlled fresh-keeping effect. At the same time, after new food is put in, the internal bacteria will also be adsorbed on the new food, causing the food to quickly spoil. Therefore, one object of the present invention is to provide a refrigeration and freezing device that can sterilize and / or disinfect the atmosphere-controlled fresh-keeping space.

[0004] Another object of the present invention is to make the deodorizing and sterilizing substances diffuse quickly and be evenly distributed in the atmosphere-controlled fresh-keeping space.

[0005] In order to achieve at least one of the above objectives, the present invention provides a refrigeration and freezing device, comprising:

[0006] A box body, wherein the box body has a controlled atmosphere preservation space and a receiving cavity, and the receiving cavity is connected with the controlled atmosphere preservation space so that gas flows between the controlled atmosphere preservation space and the receiving cavity;

[0007] A modified atmosphere membrane assembly is disposed in the accommodating chamber, and the modified atmosphere membrane assembly has at least one modified atmosphere membrane and an oxygen-rich gas collecting chamber, and the surrounding space thereof is in communication with the accommodating chamber, and the modified atmosphere membrane assembly is configured so that more oxygen in the airflow in the space surrounding the modified atmosphere membrane assembly than nitrogen in the airflow in the space surrounding the modified atmosphere membrane assembly passes through the modified atmosphere membrane into the oxygen-rich gas collecting chamber; and

[0008] The ion generating device is configured to be excited to ionize the gas in the containing chamber to generate a deodorizing and sterilizing substance, and the deodorizing and sterilizing substance flows with the gas to sterilize or deodorize the containing chamber and / or the atmosphere-controlled fresh-keeping space.

[0009] Preferably, the refrigeration and freezing device further comprises a fan;

[0010] A first ventilation structure and a second ventilation structure are provided between the accommodating cavity and the atmosphere-controlled fresh-keeping space, so as to connect the accommodating cavity and the atmosphere-controlled fresh-keeping space at different positions respectively;

[0011] The fan is configured to cause the gas in the controlled atmosphere fresh-keeping space to return to the controlled atmosphere fresh-keeping space via the first ventilation structure, the accommodating cavity and the second ventilation structure in sequence.

[0012] Preferably, a guide air duct is provided between the fan and the atmosphere-adjusting membrane assembly to facilitate the gas flowing out of the fan to flow toward the atmosphere-adjusting membrane assembly; and

[0013] An opening is provided on the air duct wall of the guide air duct;

[0014] The ion generating part of the ion generating device is arranged at the opening;

[0015] The control unit of the ion generating device is arranged outside the guide air duct, and the air duct wall prevents the gas entering the accommodating chamber from flowing toward the control unit.

[0016] Preferably, the first ventilation structure comprises at least one first ventilation hole, and the second ventilation structure comprises at least one second ventilation hole;

[0017] The at least one first vent hole and the at least one second vent hole are provided in the partition wall between the accommodating cavity and the atmosphere-controlled fresh-keeping space;

[0018] The fan is a centrifugal fan, which is disposed in the accommodating cavity, and an air inlet of the centrifugal fan faces the at least one first vent hole.

[0019] Preferably, the modified atmosphere membrane assembly is in a flat plate shape and is parallel to the partition wall between the accommodating cavity and the modified atmosphere preservation space.

[0020] Preferably, the box body includes a storage container, and a storage space is also defined in the box body; the storage container is arranged in the storage space, and the storage container has the accommodating cavity and the controlled atmosphere preservation space.

[0021] Preferably, the accommodating cavity is arranged in the top wall of the storage container.

[0022] Preferably, the refrigeration and freezing device also includes an exhaust device, which is arranged on the rear side of the controlled atmosphere preservation space, and the inlet of the exhaust device is connected to the oxygen-rich gas collecting chamber to exhaust the gas that penetrates into the oxygen-rich gas collecting chamber to the outside of the controlled atmosphere preservation space.

[0023] Preferably, the storage container is a drawer assembly, comprising:

[0024] A drawer body, having a forward opening and disposed in the storage space, wherein the accommodating cavity is disposed in the top wall of the drawer body; and

[0025] The drawer body is slidably mounted in the drawer cylinder body so as to be operably withdrawn outwards from and inserted into the drawer cylinder body through the front opening of the drawer cylinder body.

[0026] Preferably, the control unit has a control circuit module, which includes: a power input interface, a boost circuit, and a high-voltage output interface, the power input interface is used to connect a DC power supply provided externally, the boost circuit is used to controllably convert the DC power supply into a first voltage for generating a deodorizing and sterilizing substance and a second voltage for heating, the high-voltage output interface is used to output 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 to the ion generating unit; the ion generating unit is configured to be excited by the first voltage to ionize gas to generate a deodorizing and sterilizing substance, and to generate heat at the second voltage to eliminate condensation.

[0027] Since the refrigeration and freezing device of the present invention has an ion generator, it can be excited to ionize the gas in the storage chamber to generate deodorizing and sterilizing substances, and the deodorizing and sterilizing substances flow with the gas to sterilize or deodorize the storage chamber and / or the atmosphere-controlled fresh-keeping space. For example, the ion generator changes water vapor and oxygen into ions with strong oxidizing ability, and after sufficient circulation, mold substances in the atmosphere-controlled fresh-keeping space will be removed, greatly improving the efficiency of the atmosphere-controlled fresh-keeping space and the fresh-keeping period, and can more comprehensively maintain the taste of fruits and vegetables. Furthermore, the use of a fan can further improve the efficiency of sterilization and deodorization.

[0028] Furthermore, the control unit of the ion generator is arranged outside the guide air duct, which can prevent the cooling gas or high humidity environment from damaging and failing the control unit, especially preventing moisture in the cooling gas from entering the control unit. The control unit will not occupy the space of the guide air duct, and the air supply is smooth.

[0029] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1 is a schematic partial structural diagram of a refrigeration and freezing device according to an embodiment of the present invention;

[0032] Figure 2 yes Figure 1 A schematic structural diagram of a storage container in a refrigerator-freezer is shown;

[0033] Figure 3 yes Figure 1 A schematic partial structural diagram of the refrigeration and freezing device shown;

[0034] Figure 4 yes Figure 2 A schematic partial structural diagram of the storage container shown;

[0035] Figure 5 yes Figure 2 A schematic structural diagram of the top wall cover of the storage container shown. DETAILED DESCRIPTION

[0036] Figure 1 FIG. 1 is a schematic partial structural diagram of a refrigeration and freezing device according to an embodiment of the present invention. Figure 1 As shown, and refer to Figures 2 to 5 , an embodiment of the present invention provides a refrigeration and freezing device. The refrigeration and freezing device includes a box body 20. The box body 20 may include a steel plate outer shell with an opening on the front side, a synthetic resin inner liner arranged in the inner space of the outer shell and with an opening on the front side, and a foamed polyurethane insulation material formed by filling and foaming in the gap between the outer shell and the inner liner. A storage space for storing food and the like is formed in the box body 20. According to the storage temperature and purpose, the storage space can be divided into a refrigeration space 21, a freezing space 22, a variable temperature space 23, etc. Further, the box body 20 may also include a storage container 24, and the storage container 24 may be arranged at the bottom of a storage space, such as at the bottom of the refrigeration space 21. The storage container 24 may include a controlled atmosphere preservation space and a receiving chamber 31. Of course, other positions or structures in the box body 20 may also define the receiving chamber 31 and the controlled atmosphere preservation space. The receiving chamber 31 is connected to the controlled atmosphere preservation space so that the gas flows between the controlled atmosphere preservation space and the receiving chamber 31.

[0037] As those skilled in the art can appreciate, the refrigeration and freezing device of the embodiment of the present invention may also include a compressor, an evaporator, a condenser, and a throttling element, etc., like the existing refrigeration and freezing device. The evaporator is connected to the compressor, the condenser, and the throttling element via a refrigerant pipeline to form a refrigeration cycle. The gas cooled by the evaporator is supplied to each compartment so that the temperature in each compartment is maintained within the corresponding set temperature range.

[0038] The refrigeration and freezing device may also include a modified atmosphere membrane assembly 41 and an ion generator 50. The modified atmosphere membrane assembly 41 is disposed in the accommodating chamber 31, and the modified atmosphere membrane assembly 41 has at least one modified atmosphere membrane and an oxygen-rich gas collection chamber, and the surrounding space thereof is connected to the accommodating chamber 31, and the modified atmosphere membrane assembly 41 is configured so that the oxygen in the airflow in the space around the modified atmosphere membrane assembly 41 passes through the modified atmosphere membrane to enter the oxygen-rich gas collection chamber more than the nitrogen in the airflow in the space around the modified atmosphere membrane assembly 41. The ion generator 50 is configured to be excited to ionize the gas in the accommodating chamber 31 to generate a deodorizing and sterilizing substance, and the deodorizing and sterilizing substance flows with the gas to sterilize or deodorize the accommodating chamber 31 and / or the modified atmosphere preservation space.

[0039] The refrigeration and freezing device of the embodiment of the present invention has an ion generator 50, which can be excited to ionize the gas in the receiving chamber 31 to generate a deodorizing and sterilizing substance, and the deodorizing and sterilizing substance flows with the gas to sterilize or deodorize the receiving chamber 31 and / or the atmosphere-controlled fresh-keeping space. For example, the ion generator changes water vapor and oxygen into ions with strong oxidizing ability, and after sufficient circulation, mold substances in the atmosphere-controlled fresh-keeping space will be removed, greatly improving the efficiency of the atmosphere-controlled fresh-keeping space and the fresh-keeping period, and can more comprehensively maintain the taste of fruits and vegetables.

[0040] In some embodiments of the present invention, the refrigeration and freezing device includes a fan. A first ventilation structure 32 and a second ventilation structure 33 are provided between the accommodating chamber 31 and the atmosphere-controlled fresh-keeping space to connect the accommodating chamber 31 and the atmosphere-controlled fresh-keeping space at different positions. The fan is configured to cause the gas in the atmosphere-controlled fresh-keeping space to return to the atmosphere-controlled fresh-keeping space via the first ventilation structure 32, the accommodating chamber 31, and the second ventilation structure 33 in sequence.

[0041] Furthermore, a guide air duct is provided between the fan and the gas-adjusting membrane assembly 41 to promote the gas flowing out of the fan to flow to the gas-adjusting membrane assembly 41. An opening is provided on the air duct wall 34 of the guide air duct. The ion generating part 51 of the ion generating device 50 is provided at the opening. The control part 52 of the ion generating device 50 is provided in the accommodating chamber 31 and is located outside the guide air duct, and the air duct wall 34 prevents the gas entering the accommodating chamber 31 from flowing to the control part 52. The cooling gas or high humidity environment can be prevented from causing damage and failure to the control part 52, especially preventing the moisture in the cooling gas from entering the control part 52. The control part 52 will not occupy the space of the guide air duct, and the air supply is smooth.

[0042] The first ventilation structure 32 includes at least one first ventilation hole, and the second ventilation structure 33 includes at least one second ventilation hole. At least one first ventilation hole and at least one second ventilation hole are provided in the partition wall between the accommodating cavity 31 and the atmosphere-controlled fresh-keeping space. The fan is a centrifugal fan, which is arranged in the accommodating cavity 31, and the air inlet of the centrifugal fan faces the at least one first ventilation hole. The atmosphere-controlled membrane assembly 41 is preferably flat and parallel to the partition wall between the accommodating cavity 31 and the atmosphere-controlled fresh-keeping space.

[0043] In some embodiments of the present invention, the accommodating chamber 31 is arranged in the top wall of the storage container 24. The refrigeration and freezing device also includes an exhaust device 42, which is arranged at the rear side of the atmosphere-controlled fresh-keeping space, and the inlet of the exhaust device 42 is connected to the oxygen-rich gas collection chamber to exhaust the gas that penetrates into the oxygen-rich gas collection chamber to the outside of the atmosphere-controlled fresh-keeping space. The storage container 24 is a drawer assembly, including a drawer cylinder and a drawer body. The drawer cylinder has a forward opening and is arranged in the storage space, and the accommodating chamber 31 is arranged in the top wall of the drawer cylinder. The top wall includes a top wall base 35 and a top wall cover 36, and the top wall base 35 has a groove, and the top wall cover 36 covers the groove to define the accommodating chamber 31. Two air duct walls 34 are formed on the top wall cover 36, which can not only guide the gas flowing out of the centrifugal fan to the atmosphere-controlled membrane assembly 41, but also separate the gas flow space in the accommodating chamber 31 and the control unit 52 of the ion generator 50. The drawer body is slidably mounted in the drawer cylinder to be operably withdrawn outwardly from and inserted into the drawer cylinder from the front opening of the drawer cylinder.

[0044] In some embodiments of the present invention, the control unit 52 of the ion generating device 50 has a control circuit module, which includes: a power input interface, a boost circuit, and a high-voltage output interface. The power input interface is used to connect an externally provided DC power supply, the boost circuit is used to controllably convert the DC 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 to output a first voltage or a second voltage, wherein the first voltage is higher than the second voltage. And the high-voltage output interface is connected to the ion generating unit. The ion generating unit is configured to be excited by the first voltage to ionize the gas to generate the deodorizing and sterilizing substance, and to generate heat at the second voltage to eliminate condensation. The ion generating unit may include a first electrode and a second electrode connected to the control unit 52, and a discharge gap is provided 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 and the second electrode are kept isolated and each generates heat at the second voltage. The control unit 52 and the ion generating unit 51 can be connected by a cable.

[0045] 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 boost circuit, and is used to output a feedback voltage corresponding to the first voltage or the second voltage to indicate the boost state of the boost circuit. The controlled terminal is connected to the boost circuit and is configured to receive an external control signal (the control signal may be a control signal issued by a refrigerator main control board or a controller of other refrigerators, and is used to adjust the working state of the ion generating device 50 according to the operation of the refrigerator), 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 DC power supply into AC power, and the voltage of the AC power is the first voltage or the second voltage.

[0046] Those skilled in the art should understand that the "refrigeration and freezing device" referred to in the present invention is not limited to a refrigeration and freezing device in the general sense that has a refrigeration chamber and a freezer chamber and is used to store food, but can also be other devices with refrigeration functions, such as a wine cabinet, a refrigerated tank, etc.

[0047] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A refrigeration and freezing device, characterized in that: include: A box body, wherein the box body has a controlled atmosphere preservation space and a receiving cavity, and the receiving cavity is connected with the controlled atmosphere preservation space so that gas flows between the controlled atmosphere preservation space and the receiving cavity; a first ventilation structure and a second ventilation structure are provided between the receiving cavity and the controlled atmosphere preservation space so as to connect the receiving cavity with the controlled atmosphere preservation space at different positions respectively; A modified atmosphere membrane assembly is disposed in the accommodating chamber, and the modified atmosphere membrane assembly has at least one modified atmosphere membrane and an oxygen-rich gas collecting chamber, and the surrounding space thereof is in communication with the accommodating chamber, and the modified atmosphere membrane assembly is configured so that more oxygen in the airflow in the space surrounding the modified atmosphere membrane assembly than nitrogen in the airflow in the space surrounding the modified atmosphere membrane assembly passes through the modified atmosphere membrane into the oxygen-rich gas collecting chamber; and An ion generator is configured to be excited to ionize the gas in the containing chamber to generate a deodorizing and sterilizing substance, and the deodorizing and sterilizing substance flows with the gas to sterilize or deodorize the containing chamber and / or the atmosphere-controlled fresh-keeping space; A fan, wherein the fan is configured to cause the gas in the controlled atmosphere preservation space to return to the controlled atmosphere preservation space via the first ventilation structure, the accommodating cavity and the second ventilation structure in sequence; a guide air duct is provided between the fan and the controlled atmosphere membrane assembly to cause the gas flowing out of the fan to flow toward the controlled atmosphere membrane assembly; and an opening is provided on the air duct wall of the guide air duct; the ion generating part of the ion generating device is provided at the opening; the control part of the ion generating device is provided outside the guide air duct, and the air duct wall prevents the gas entering the accommodating cavity from flowing toward the control part; An exhaust device, the inlet of which is communicated with the oxygen-rich gas collecting chamber, so as to exhaust the gas that penetrates into the oxygen-rich gas collecting chamber to the outside of the controlled atmosphere preservation space.

2. The refrigeration and freezing device according to claim 1, characterized in that: The first ventilation structure comprises at least one first ventilation hole, and the second ventilation structure comprises at least one second ventilation hole; The at least one first vent hole and the at least one second vent hole are provided in the partition wall between the accommodating cavity and the atmosphere-controlled fresh-keeping space; The fan is a centrifugal fan, which is disposed in the accommodating cavity, and an air inlet of the centrifugal fan faces the at least one first vent hole.

3. The refrigeration and freezing device according to claim 2, characterized in that: The atmosphere-controlled membrane assembly is in a flat plate shape and is parallel to the partition wall between the accommodating cavity and the atmosphere-controlled fresh-keeping space.

4. The refrigeration and freezing device according to claim 1, characterized in that: The box body includes a storage container, and a storage space is also defined in the box body; the storage container is arranged in the storage space, and the storage container has the accommodating cavity and the atmosphere-controlled fresh-keeping space.

5. The refrigerator-freezer according to claim 4, characterized in that: The accommodating cavity is arranged in the top wall of the storage container.

6. The refrigerator-freezer according to claim 1, characterized in that: The air extraction device is arranged at the rear side of the atmosphere-controlled fresh-keeping space.

7. The refrigerator-freezer according to claim 4, characterized in that: The storage container is a drawer assembly, comprising: A drawer body, having a forward opening and disposed in the storage space, wherein the accommodating cavity is disposed in the top wall of the drawer body; and The drawer body is slidably mounted in the drawer cylinder body so as to be operably withdrawn outwards from and inserted into the drawer cylinder body through the front opening of the drawer cylinder body.

8. The refrigerator-freezer according to claim 1, characterized in that: The control unit has a control circuit module, which includes: a power input interface, a boost circuit, and a high-voltage output interface, the power input interface is used to connect a DC power supply provided externally, the boost circuit is used to controllably convert the DC power supply into a first voltage for generating a deodorizing and sterilizing substance and a second voltage for heating, the high-voltage output interface is used to output 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 to the ion generating unit; the ion generating unit is configured to be excited by the first voltage to ionize gas to generate a deodorizing and sterilizing substance, and to generate heat at the second voltage to eliminate condensation.

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