WO2023213317A1

WO2023213317A1 - Refrigerator/freezer apparatus

Info

Publication number: WO2023213317A1
Application number: PCT/CN2023/092419
Authority: WO
Inventors: 刘勇豪; 姬立胜; 韩志强; 刘山山
Original assignee: 青岛海尔特种电冰箱有限公司; 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2022-05-06
Filing date: 2023-05-06
Publication date: 2023-11-09
Also published as: CN217686092U

Abstract

The present invention provides a refrigerator/freezer apparatus. The refrigerator/freezer apparatus comprises a body, an electromagnetic wave generating system, a first fan, and a second fan. At least one storage compartment is defined in the body. The electromagnetic wave generating system is configured to generate electromagnetic waves in a storage compartment or in part of a storage compartment to heat an object to be treated. The first fan and the second fan are used for dissipating heat from the electromagnetic wave generating system. The axis of rotation of the first fan and that of the second fan are on different planes, and the fans induce air to flow through a device of the electromagnetic wave generating system. In the refrigerator/freezer apparatus of the present invention, the first fan and the second fan are used to simultaneously dissipate heat from a device of the electromagnetic wave generating system. The axis of rotation of the first fan and that of the second fan are on different planes, such that heat dissipation in respect of a heating-generating device is effectively and quickly achieved in different spaces at the same time. This extends the continuous working time of the electromagnetic wave generating system, and ensures effective defrosting or thawing as well as the service life of the heat-generating device.

Description

Refrigeration and freezing equipment

Technical field

The present invention relates to the field of refrigeration or cooling, and in particular to a refrigeration and freezing device with an electromagnetic wave generating system.

Background technique

There are some refrigeration and freezing devices in the prior art that use electromagnetic wave generation systems to generate electromagnetic waves to defrost food in storage rooms or reduce local condensation and evaporator frosting. However, when the electromagnetic wave generating system is working, some electrical components of the electromagnetic wave generating system will generate a large amount of heat, which not only affects the use of the surrounding environment, but also affects the thawing and defrosting effects, the continuous working time of the electromagnetic wave generating system, and the service life of the heating electrical components. .

Taking all factors into consideration, the design requires a refrigeration and freezing device that can effectively dissipate heat from heating electrical devices and occupy a small space.

Contents of the invention

An object of the present invention is to overcome at least one technical defect in the prior art and provide a refrigeration and freezing device with an electromagnetic wave generating system, which can realize effective heat dissipation of the heating device of the electromagnetic wave generating system.

A further object of the invention is to increase the compactness of the structure.

Another further object of the present invention is to improve the heat dissipation efficiency.

In particular, the present invention provides a refrigeration and freezing device, including:

The box is defined with at least one storage compartment;

An electromagnetic wave generating system, configured to generate electromagnetic waves in one of the storage compartments or in a part of one of the storage compartments to heat the object to be processed; and

The first fan and the second fan are used to dissipate heat for the electromagnetic wave generating system; wherein,

The rotational axes of the first fan and the second fan are arranged on different planes and urge air to flow through a component of the electromagnetic wave generating system.

Optionally, the first fan is an axial flow fan; and

The first fan is spaced apart from the device, and is configured to urge the air to flow in a direction close to the device first and then flow along the surface of the device.

Optionally, the refrigeration and freezing device also includes:

A heat dissipation fin configured to be thermally connected to a surface of the device close to the first fan, including a plurality of ribs; in,

The projection of the plurality of ribs on a plane perpendicular to the rotation axis of the first fan is located on the outer periphery of the first fan.

Optionally, the projection of the first fan on a plane extending along its axis of rotation at least partially falls into the projection of the plurality of ribs in this plane.

Optionally, the second fan is an axial flow fan; and

The projection of the second fan on the mounting plane of the device is located outside the device and causes air to flow along the surface of the device.

Optionally, the refrigeration and freezing device also includes:

The heat dissipation fin is arranged to be thermally connected to the surface of the device away from the mounting plane, and includes a plurality of ribs; wherein,

One or more of the plurality of ribs are disposed parallel to the rotation axis of the second fan for guiding the flow direction of air blown by the second fan.

Optionally, the projection of the first fan on the mounting plane is located within the device and promotes air flow along the surface of the device; wherein,

The plurality of ribs are arranged so that their projections on the mounting plane surround the first fan and form a cooling air duct on a side of the first fan away from the second fan; and

The projection of the second fan on a plane perpendicular to its rotation axis is at least partially located within the cooling air duct and located outside the first fan.

Optionally, the electromagnetic wave generating system includes:

a signal source configured to generate an electromagnetic wave signal;

a power amplifier configured to be electrically connected to the signal source and increase the power of the electromagnetic wave signal; and

A power module configured to provide electrical energy to the signal source and the power amplifier; wherein,

The device is the power amplifier; and

The second fan is configured to urge air around the power module to flow toward the power amplifier.

Optionally, the signal source, the power amplifier, and the power module are arranged on the top or above the box and are connected to the indoor environment; and the refrigeration and freezing device further includes:

A cover is disposed above the box and limits the signal source, the power amplifier, the power module, and the heat dissipation fins between the cover and the box; wherein ,

The cover is formed with at least one air inlet and at least one air outlet, and the at least one air inlet is The horizontal central axis of at least some of the air inlet holes is higher than the horizontal central axis of the at least one air outlet hole; and

There is a vertical gap between the cover and the heat dissipation fins.

Optionally, the extending directions of the plurality of ribs are the same; and/or

The at least one air inlet hole is provided at least on a side of the second fan close to the first fan in the radial direction of its rotation axis; and/or

The at least one air outlet is provided at least on a side of the power amplifier away from the power module; and/or

The refrigeration and freezing device further includes a communication piece configured to connect the cooling air duct and part of the air outlet.

The refrigeration and freezing device of the present invention simultaneously uses a first fan and a second fan to dissipate heat for a component of the electromagnetic wave generating system, and sets the rotation axes of the first fan and the second fan on different planes to effectively and quickly operate in different spaces at the same time. The ground dissipates heat for the heating device, extending the continuous working time of the electromagnetic wave generation system, ensuring the defrosting effect and the service life of the heating device.

Further, the present invention makes the projections of the first fan and the second fan on the installation plane respectively located inside the power amplifier and outside the power amplifier, and urges the air to flow along the power amplifier from the upper side of the first fan and the periphery of the power module respectively. Surface flow can effectively dissipate heat for the power amplifier and power module at the same time, and circulate the air in the space under the cover over a wide range to avoid local overheating of the heating device. The structure is compact and takes up little space, reducing the impact on the surrounding environment of the refrigeration and freezing device. Impact.

Further, the heat dissipation fins of the present invention are configured with a plurality of ribs extending parallel to the rotation axis of the second fan, the projection on the power amplifier surrounds the first fan, and forms a heat dissipation fin on the side of the first fan away from the second fan. The air duct, the cooling air duct is directly connected to the air outlet through the connecting piece, which can fully exchange heat between the air and the cooling fins, and at the same time, the heat generated by the power amplifier and power module can be quickly discharged to the outside of the cover, thereby improving heat dissipation. efficiency, making the power amplifier and power module work stably.

From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will further understand the above and other objects, advantages and features of the present invention.

Description of the drawings

Some specific embodiments of the invention will be described in detail below 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 parts or portions. Those skilled in the art will appreciate that these drawings are not necessarily drawn to scale. In the attached picture:

Figure 1 is a schematic cross-sectional view of a refrigeration and freezing device according to an embodiment of the present invention;

Figure 2 is a schematic partial cross-sectional view of the refrigeration and freezing device shown in Figure 1 taken along a horizontal plane;

Figure 3 is a schematic partial cross-sectional view of the refrigeration and freezing device shown in Figure 1 taken along a vertical plane, which shows the inlet and outlet air flow paths of the first fan and the second fan;

Figure 4 is a schematic partial cross-sectional view of the refrigeration and freezing device shown in Figure 1 taken along a first horizontal plane, showing the air inlet flow path in the casing;

Figure 5 is a schematic partial cross-sectional view of the refrigeration and freezing device shown in Figure 1 taken along the second horizontal plane, showing the air outlet flow path in the casing;

FIG. 6 is a schematic isometric view of the housing in FIG. 1 .

Detailed ways

Figure 1 is a schematic cross-sectional view of a refrigeration and freezing device 100 according to an embodiment of the present invention. Referring to FIG. 1 , the refrigeration and freezing device 100 may include a box 110 defining at least one storage compartment, at least one door for opening and closing the at least one storage compartment, a refrigeration system, and a heating unit. In the present invention, at least one is one, two or more than two.

In the illustrated embodiment, the storage compartment defined by the box 110 may include a freezing compartment 111 and a refrigerating compartment 112 .

The refrigeration system may include a compressor 121, a condenser connected to the refrigerant outlet of the compressor 121, a throttling element connected to the refrigerant outlet of the condenser, and a refrigeration evaporator 122 connected to the refrigerant outlet of the throttling element to provide refrigeration equipment. The compartment 111 and the refrigeration compartment 112 provide cooling capacity. The freezing compartment 111 may be provided with a freezing fan 123 to promote the cold air after heat exchange with the freezing evaporator 122 to circulate in the freezing compartment 111 or the refrigeration compartment 112 .

The heating unit may include an electromagnetic wave generating system to generate electromagnetic waves in a storage compartment or in a part of a storage compartment to heat the object to be processed.

The heating unit may also include a cylinder 131 provided in a storage room, and a door 132 for opening and closing the access opening of the cylinder 131 . The electromagnetic wave generating system is configured to generate electromagnetic waves within the cylinder 131 .

The electromagnetic wave generating system can also be configured to generate electromagnetic waves throughout the storage room.

Specifically, the electromagnetic wave generating system may include a signal source (not shown), a power amplifier 133, a radiation element, and a power module 134.

The signal source can be configured to generate an electromagnetic wave signal. The power amplifier 133 may be configured to be electrically connected to the signal source and increase the power of the electromagnetic wave signal.

The radiating element may be configured to be electrically connected to the power amplifier 133 and radiate the amplified electromagnetic waves to the surrounding environment.

The power module 134 may be configured to provide electrical power to the signal source and power amplifier 133 .

FIG. 2 is a schematic partial cross-sectional view of the refrigeration and freezing device 100 shown in FIG. 1 taken along a horizontal plane. Referring to FIGS. 1 and 2 , the refrigeration and freezing device 100 may further include a first fan 141 and a second fan 142 for dissipating heat from the electromagnetic wave generating system.

In particular, the rotation axes of the first fan 141 and the second fan 142 can be arranged on different planes, and promote the air to flow through a heating device of the electromagnetic wave generation system, so as to effectively and quickly dissipate heat for the heating device in different spaces at the same time, extending the The continuous working time of the electromagnetic wave generating system ensures the thawing and defrosting effect and the service life of the heating device.

In some embodiments, the first fan 141 and the second fan 142 may be configured to dissipate heat from the power amplifier 133 .

The technical solution of the present invention will be introduced below by taking an example in which both the first fan 141 and the second fan 142 prompt air to flow through the power amplifier 133 .

Figure 3 is a schematic partial cross-sectional view of the refrigeration and freezing device 100 shown in Figure 1 taken along a vertical plane, which shows the inlet and outlet air flow paths of the first fan 141 and the second fan 142; Figure 4 is the refrigeration and freezing device shown in Figure 1 100 is a schematic partial cross-sectional view taken along a first horizontal plane, which shows the air inlet flow path in the casing 160; Figure 5 is a schematic partial cross-sectional view of the refrigeration and freezing device 100 shown in Figure 1 taken along a second horizontal plane, wherein The air outlet flow path within the casing 160 is shown. Referring to FIGS. 2 to 5 , in some embodiments, the first fan 141 may be configured to urge the air to first flow in a direction close to the power amplifier 133 and then flow along the surface of the power amplifier 133 to exchange heat with the power amplifier 133 .

In some further embodiments, the first fan 141 may be an axial fan. That is, the first fan 141 blows air toward the power amplifier 133, and the air collides with the surface of the power amplifier 133 and continues to flow along the surface of the power amplifier 133, so that the air and the power amplifier 133 are fully heat exchanged.

The first fan 141 can be spaced apart from the device to avoid interference between the first fan 141 and the power amplifier 133 and to reduce wind resistance.

In some further embodiments, the first fan 141 may be a centrifugal fan. A centrifugal fan may be placed close to the power amplifier 133 to suck air from around the power amplifier 133 and blow the air along the surface of the power amplifier 133 .

In some embodiments, the refrigeration and freezing device 100 may further include heat dissipation fins. The heat dissipation fins may be configured to be thermally connected to a surface of the power amplifier 133 close to the first fan 141 and include a plurality of ribs 151 to increase the heat exchange area of the power amplifier 133 .

The first fan 141 and the heat dissipation fins may be disposed on a side of the power amplifier 133 away from the installation plane of the power amplifier 133 .

The projection of the first fan 141 on the mounting plane of the power amplifier 133 may be located within the power amplifier 133 . The projection of the plurality of ribs 151 on a plane perpendicular to the rotation axis of the first fan 141 may be located on the outer periphery of the first fan 141 to improve heat dissipation efficiency.

The projection of the first fan 141 on a plane extending along its rotation axis can at least partially fall into the projection of the plurality of ribs 151 on the plane, so as to reduce the wind resistance on the air inlet side of the first fan 141 and allow the air to interact with the plane. Power amplifier 133 is fully hot swappable.

In some embodiments, the second fan 142 may be an axial fan. The projection of the second fan 142 on the installation plane of the power amplifier 133 may be located outside the power amplifier 133 and promote air flow along the surface of the power amplifier 133 so that a larger area of air circulates to dissipate heat for the power amplifier 133 .

The second fan 142 may be configured to urge air around the power module 134 to flow toward the power amplifier 133 to simultaneously dissipate heat for the power amplifier 133 and the power module 134 .

The rated power and blade size of the second fan 142 may be respectively smaller than the rated power and blade size of the first fan 141 .

One or more of the plurality of ribs 151 of the heat dissipation fins may be disposed parallel to the rotation axis of the second fan 142 to guide the flow direction of the air blown by the second fan 142 .

The plurality of ribs 151 may be further configured to extend in the same direction. That is, the extending directions of the plurality of ribs 151 may be parallel to the rotation axis of the second fan 142, so that the air around the power amplifier 133 flows more smoothly and further improves the heat dissipation efficiency.

In some further embodiments, the plurality of ribs 151 may be arranged to surround the first fan 141 in projection on the installation plane of the power amplifier 133 and form a cooling air duct on the side of the first fan 141 away from the second fan 142 152.

The projection of the second fan 142 on a plane perpendicular to its rotation axis may be located outside the first fan 141 and at least partially located in the cooling air duct 152 so that the heat generated by the power amplifier 133 can be quickly discharged.

The refrigeration and freezing device 100 may also include a communication member 170 . The connecting piece 170 can be configured to connect the heat dissipation duct 152 and some of the air outlets 162 to quickly discharge the hot air and further improve the heat dissipation efficiency.

In some embodiments, the signal source, power amplifier 133, and power module 134 can be disposed on the top or above the box 110 and connected to the indoor environment to improve heat dissipation efficiency and reduce the impact on the storage room.

In the embodiment shown in FIG. 3 , a downwardly recessed receiving groove 113 may be formed on the top of the box 110 , and the signal source, power amplifier 133 , and power module 134 may be disposed in the receiving groove 113 .

FIG. 6 is a schematic isometric view of the housing 160 in FIG. 1 . Referring to FIGS. 3 to 6 , the refrigeration and freezing device 100 may further include a cover 160 disposed above the box 110 . The cover 160 can connect the signal source, power amplifier 133, The power module 134 and the heat dissipation fins are defined between the cover 160 and the box 110 to improve safety.

The cover 160 may be formed with at least one air inlet hole 161 and at least one air outlet hole 162 to circulate air.

The horizontal central axis of at least part of the air inlet holes 161 can be higher than the horizontal central axis of at least one air outlet hole 162 to avoid mutual interference between the air inlet and the air outlet and reduce wind resistance.

The cover 160 and the heat dissipation fins may be spaced apart in the vertical direction to increase the amount of air flowing into the cover 160 from the outside of the cover 160 .

The air inlet hole 161 may be provided at least on a side of the second fan 142 close to the first fan 141 in the radial direction of its rotation axis to avoid interfering with the air inlet and outlet of the second fan 142 .

The air outlet 162 may be provided at least on a side of the power amplifier 133 away from the power module 134 to improve heat dissipation efficiency and prevent the power amplifier 133 from overheating.

The number of the air inlet holes 161 and the air outlet holes 162 may be multiple. In the embodiment shown in FIGS. 3 to 5 , the air inlet holes 161 can be distributed on two peripheral walls of the cover 160 located in the radial direction of the rotation axis of the second fan 142 , and the cover 160 is located away from the power module 134 A peripheral wall on one side of the power amplifier 133 . The air inlet hole 161 located on the side of the power module 134 away from the power amplifier 133 is provided at a position corresponding to the second fan 142 .

The air outlet holes 162 may be distributed on two peripheral walls of the housing 160 located in the axial direction of the rotation axis of the second fan 142 .

In other embodiments, the air inlet holes 161 may be distributed only on two peripheral walls of the housing 160 located in the radial direction of the rotation axis of the second fan 142 . The air outlet holes 162 may be distributed only on the peripheral wall of the cover 160 on the side of the power amplifier 133 away from the second fan 142 . Part of the air blown by the first fan 141 collides with the peripheral wall of the cover 160 close to the power module 134 , flows along the peripheral wall, is sucked into the second fan 142 , and is finally discharged through the cooling air duct 152 .

By now, those skilled in the art will appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, various embodiments disclosed herein may still be practiced without departing from the spirit and scope of the present invention. The content directly identifies or leads to 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

A refrigeration and freezing device, characterized in that it includes:

The box is defined with at least one storage compartment;

An electromagnetic wave generating system, configured to generate electromagnetic waves in one of the storage compartments or in a part of one of the storage compartments to heat the object to be processed; and

The first fan and the second fan are used to dissipate heat for the electromagnetic wave generating system; wherein,

The rotational axes of the first fan and the second fan are arranged on different planes and urge air to flow through a component of the electromagnetic wave generating system.
The refrigeration and freezing device according to claim 1, characterized in that:

The first fan is an axial flow fan; and

The first fan is spaced apart from the device, and is configured to urge the air to flow in a direction close to the device first and then flow along the surface of the device.
The refrigeration and freezing device according to claim 2, further comprising:

The heat dissipation fin is arranged to be thermally connected to the surface of the device close to the first fan, and includes a plurality of ribs; wherein,

The projection of the plurality of ribs on a plane perpendicular to the rotation axis of the first fan is located on the outer periphery of the first fan.
The refrigeration and freezing device according to claim 3, characterized in that:

The projection of the first fan on a plane extending along its axis of rotation at least partially falls into the projection of the plurality of ribs in this plane.
The refrigeration and freezing device according to claim 1, characterized in that:

The second fan is an axial flow fan; and

The projection of the second fan on the mounting plane of the device is located outside the device and causes air to flow along the surface of the device.
The refrigeration and freezing device according to claim 5, further comprising:

The heat dissipation fin is arranged to be thermally connected to the surface of the device away from the mounting plane, and includes a plurality of ribs; wherein,

One or more of the plurality of ribs are arranged parallel to the rotation axis of the second fan for guiding the flow direction of the air blown by the second fan.
The refrigeration and freezing device according to claim 6, characterized in that:

The projection of the first fan on the mounting plane is located within the device and promotes air flow along the surface of the device; wherein,

The plurality of ribs are arranged so that their projections on the mounting plane surround the first fan and form a cooling air duct on a side of the first fan away from the second fan; and

The projection of the second fan on a plane perpendicular to its rotation axis is at least partially located within the cooling air duct and located outside the first fan.
The refrigeration and freezing device according to claim 7, wherein the electromagnetic wave generating system includes:

a signal source configured to generate an electromagnetic wave signal;

a power amplifier configured to be electrically connected to the signal source and increase the power of the electromagnetic wave signal; and

A power module configured to provide electrical energy to the signal source and the power amplifier; wherein,

The device is the power amplifier; and

The second fan is configured to urge air around the power module to flow toward the power amplifier.
The refrigeration and freezing device according to claim 8, characterized in that:

The signal source, the power amplifier, and the power module are arranged on the top or above the box and are connected to the indoor environment; and the refrigeration and freezing device also includes:

A cover is disposed above the box and limits the signal source, the power amplifier, the power module, and the heat dissipation fins between the cover and the box; wherein ,

The cover is formed with at least one air inlet hole and at least one air outlet hole, and the horizontal central axis of at least part of the at least one air inlet hole is higher than the horizontal central axis of the at least one air outlet hole; and

There is a vertical gap between the cover and the heat dissipation fins.
The refrigeration and freezing device according to claim 9, characterized in that:

The multiple ribs extend in the same direction; and/or

The at least one air inlet hole is provided at least on a side of the second fan close to the first fan in the radial direction of its rotation axis; and/or

The at least one air outlet is provided at least on a side of the power amplifier away from the power module; and/or

The refrigeration and freezing device further includes a communication piece configured to connect the cooling air duct and part of the air outlet.