Refrigerator

Abstract

A refrigerator includes: an inner case having an inner case opening; a housing having a housing opening; a mounting frame having a channel between the inner housing opening and the outer housing opening; a heat insulation member located in a heat insulation space in which one end of the channel of the mounting frame is located at an inner case opening of the inner case and the other end of the channel of the mounting frame is located at an outer case opening; a thermoelectric element including a heat absorbing surface and a heat generating surface; a cooler in contact with the heat absorbing surface to exchange heat with the heat absorbing surface; and a heat sink in contact with the heat generating surface to exchange heat with the heat generating surface, in which the cooler and the heat sink are respectively connected to the mounting frame.

Description

Technical Field

[0001] This disclosure relates to refrigerators, and more specifically, to a refrigerator that uses thermoelectric elements to cool the storage compartment. Background Technology

[0002] Typically, a refrigerator, as a appliance used to preserve food, includes a main body with storage compartments and a cold air supply device that supplies cold air to the storage compartments.

[0003] Refrigerators can use thermoelectric elements as cold air supply devices. These thermoelectric elements achieve heating and cooling through the Peltier effect. A thermoelectric element has an absorbing surface and a heating surface. When an electric current is applied to the thermoelectric element, heat can be transferred from the absorbing surface to the heating surface, creating a temperature difference between the two surfaces. In other words, heat is generated on the heating surface side, and heat is absorbed on the absorbing surface side.

[0004] To efficiently absorb heat, a cooler can be attached to the heat-absorbing surface, and to efficiently dissipate heat, a radiator can be attached to the heat-generating surface. Summary of the Invention

[0005] Technical issues

[0006] One aspect of this disclosure provides a refrigerator including a thermoelectric module having a thermoelectric element with a heat-absorbing surface and a heat-generating surface, a cooler in contact with the heat-absorbing surface, and a radiator in contact with the heat-generating surface.

[0007] One aspect of this disclosure provides a refrigerator having a mounting structure for a thermoelectric module that improves the efficiency of the cooling effect achieved by the thermoelectric module.

[0008] One aspect of this disclosure provides a refrigerator having a mounting structure for a thermoelectric module, which improves the ease of assembly, joint strength, and joint durability.

[0009] The technical tasks to be achieved in this document are not limited to those mentioned above. Other unmentioned technical tasks will be clearly understood by those skilled in the art through the following description.

[0010] Technical solution

[0011] According to an embodiment of this disclosure, a refrigerator includes: a main body comprising a plurality of heat-insulating walls and a storage compartment located within the main body; wherein at least one of the plurality of heat-insulating walls includes: an inner shell having an inner shell opening; an outer shell connectable to the inner shell and having an outer shell opening; a mounting frame disposed between the inner shell and the outer shell and having a channel such that when the mounting frame is disposed between the inner shell and the outer shell, the channel is located between the inner shell opening and the outer shell opening; and a heat insulation member disposed in the heat insulation space between the inner shell and the outer shell such that when the heat insulation member is disposed... In the insulated space, one end of the mounting frame channel is located at the inner shell opening of the inner shell, and the other end of the mounting frame channel opposite to that end is located at the outer shell opening; a thermoelectric element for cooling the storage chamber has a heat-absorbing surface on the side facing the storage chamber and a heat-generating surface on the opposite side; a cooler that exchanges heat with the heat-absorbing surface when in contact with it; and a radiator that exchanges heat with the heat-generating surface when in contact with it; wherein the cooler and the radiator are respectively connected to the mounting frame.

[0012] The refrigerator may also include a first fastening member and a second fastening member; the first fastening member is configured to pass through the cooler to fasten to the mounting frame, thereby connecting the cooler to the mounting frame; the second fastening member is configured to pass through the radiator to fasten to the mounting frame, thereby connecting the radiator to the mounting frame.

[0013] The cooler may include a cooling plate located outside the channel path and a cooling block located inside the channel path, and the heat sink may include a heat sink located outside the channel path.

[0014] The dimensions of one surface of the cooling plate facing the channel and the dimensions of one surface of the heat sink facing the channel can each be larger than the cross-sectional dimensions of the channel.

[0015] The cooling block can contact the heat-absorbing surface, and the heat sink can contact the heat-generating surface.

[0016] One end of the passage is the front entrance facing the storage room on the side of the mounting frame, and the other end of the passage is the rear entrance, with the thermoelectric element closer to the rear entrance than the front entrance.

[0017] The refrigerator may also include insulation components configured to insulate the thermoelectric elements from the mounting frame.

[0018] The mounting frame may have grooves along its inner surface to allow for the installation of thermal insulation components.

[0019] The cooler may include a first through hole through which the first fastening member passes, the radiator may include a second through hole through which the second fastening member passes, and the mounting frame may include a first fastening hole for fastening the first fastening member and a second fastening hole for fastening the second fastening member.

[0020] The refrigerator may also include a fastening member configured to pass through the mounting frame and one of the cooler and radiator to fasten to the other of the cooler and radiator.

[0021] One of the cooler and the radiator may include a first through hole for the fastening member to pass through, the mounting frame may include a second through hole for the fastening member to pass through, and the other of the cooler and the radiator may include a fastening hole for the fastening member to be fastened.

[0022] The channel may be a first channel having a first cross-section, the mounting frame includes a second channel having a second cross-section larger than the first cross-section, the cooling block may be a first cooling block disposed in the first channel, and the cooler includes a second cooling block disposed in the second channel.

[0023] The refrigerator may also include a first fastening member and a second fastening member; the first fastening member is configured to pass through the cooling plate and the first cooling block to fasten to the second cooling block, thereby connecting the cooler to the mounting frame; the second fastening member is configured to pass through the radiator to fasten to the mounting frame, thereby connecting the radiator to the mounting frame.

[0024] The cooling plate may include a first through hole through which the first fastening member passes, the first cooling block may include a second through hole through which the first fastening member passes, the second cooling block may include a first fastening hole for fastening the first fastening member, the radiator may include a third through hole through which the second fastening member passes, and the mounting frame may include a second fastening hole for fastening the second fastening member.

[0025] According to another embodiment of this disclosure, a refrigerator includes: an inner shell forming a storage compartment and having an inner shell opening; an outer shell connectable to the outside of the inner shell and having an outer shell opening; a mounting frame disposed between the inner shell and the outer shell, and having a channel such that when the mounting frame is disposed between the inner shell and the outer shell, the channel is located between the inner shell opening and the outer shell opening; a heat insulation member located within a heat insulation space formed by the inner shell, the outer shell, and the mounting frame; a thermoelectric element configured to cool the storage compartment, having a heat-absorbing surface formed on one side facing the storage compartment and a heat-generating surface formed on the opposite side; a cooler contacting the heat-absorbing surface for heat exchange; and a radiator contacting the heat-generating surface for heat exchange; wherein the cooler and the radiator are respectively connected to the mounting frame.

[0026] The refrigerator may also include a first fastening member and a second fastening member; the first fastening member is configured to pass through the cooler to fasten to the mounting frame, thereby connecting the cooler to the mounting frame; the second fastening member is configured to pass through the radiator to fasten to the mounting frame, thereby connecting the radiator to the mounting frame.

[0027] The cooler may include a cooling plate located outside the channel path and a cooling block located inside the channel path, and the heat sink may include a heat sink located outside the channel path.

[0028] The dimensions of one surface of the cooling plate facing the channel and the dimensions of one surface of the heat sink facing the channel can each be larger than the cross-sectional dimensions of the channel.

[0029] The refrigerator may also include fastening components configured to pass through one of the cooler and the radiator and the mounting frame to fasten to the other of the cooler and the radiator.

[0030] The channel may be a first channel having a first cross-section, the mounting frame includes a second channel having a second cross-section larger than the first cross-section, the cooling block may be a first cooling block located in the first channel, and the cooler includes a second cooling block located in the second channel. The refrigerator may also include a first fastening member and a second fastening member; the first fastening member is configured to pass through the cooling plate and the first cooling block to fasten to the second cooling block, thereby connecting the cooler to the mounting frame; the second fastening member is configured to pass through the radiator to fasten to the mounting frame, thereby connecting the radiator to the mounting frame.

[0031] Beneficial effects

[0032] According to this disclosure, by ensuring sufficient pressure between the heat-absorbing surface and the cooler, as well as between the heat-generating surface and the radiator, the efficiency of the cooling effect achieved by the thermoelectric module can be improved.

[0033] According to this disclosure, although thermal deformation of the insulation wall and other components occurs due to the low temperature of the storage chamber and the temperature difference between the inside and outside of the storage chamber, the pressure between the heat-absorbing surface and the cooler and the pressure between the heat-generating surface and the radiator can still be stably maintained, thereby improving the efficiency of the cooling effect achieved by the thermoelectric module.

[0034] According to this disclosure, the cooling plate of the cooler and the heat sink of the radiator can have a larger area than the channel of the main body, thereby improving the efficiency of the cooling effect achieved by the thermoelectric module.

[0035] According to this disclosure, the cooler is connected to the insulation wall via an inlet facing the storage chamber through a channel in the insulation wall, and the radiator is connected to the insulation wall via an opposite inlet, thereby improving the ease of assembly of the thermoelectric module.

[0036] According to this disclosure, the cooler and radiator are directly connected to the mounting frame fixed to the inner and outer shells via polyurethane foam, thereby improving the bonding strength and durability between the thermoelectric module and the body.

[0037] The effects that can be obtained from this disclosure are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art through the following description. Attached Figure Description

[0038] Figure 1 This is a view showing a refrigerator according to an embodiment of the present disclosure.

[0039] Figure 2 This is an exploded view showing a plurality of heat-insulating walls of a refrigerator according to an embodiment of the present disclosure.

[0040] Figure 3 This is a view showing the rear insulation wall according to an embodiment of the present disclosure.

[0041] Figure 4 This is a perspective view showing an installation frame according to an embodiment of the present disclosure.

[0042] Figure 5 This is a perspective view showing the mounting frame according to an embodiment of the present disclosure from another direction.

[0043] Figure 6 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to an embodiment of the present disclosure.

[0044] Figure 7 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to an embodiment of the present disclosure from another direction.

[0045] Figure 8 This is a cross-sectional view showing the connection between the thermoelectric module and the insulation wall according to an embodiment of the present disclosure.

[0046] Figure 9 This is a view showing a method of connecting a thermoelectric module to an insulating wall according to an embodiment of the present disclosure.

[0047] Figure 10 This is a view showing a method of connecting a thermoelectric module to an insulating wall according to an embodiment of the present disclosure.

[0048] Figure 11 This is a perspective view showing an installation frame according to another embodiment of the present disclosure.

[0049] Figure 12 This is a perspective view showing the mounting frame according to another embodiment of the present disclosure from another direction.

[0050] Figure 13 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to another embodiment of the present disclosure.

[0051] Figure 14 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to another embodiment of the present disclosure from another direction.

[0052] Figure 15 This is a cross-sectional view showing the connection between the thermoelectric module and the insulation wall according to another embodiment of the present disclosure.

[0053] Figure 16 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0054] Figure 17 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0055] Figure 18 This is a perspective view showing an installation frame according to another embodiment of the present disclosure.

[0056] Figure 19 This is a perspective view showing the mounting frame according to another embodiment of the present disclosure from another direction.

[0057] Figure 20 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to another embodiment of the present disclosure.

[0058] Figure 21 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to another embodiment of the present disclosure from another direction.

[0059] Figure 22 This is a cross-sectional view showing the connection between the thermoelectric module and the insulation wall according to another embodiment of the present disclosure.

[0060] Figure 23 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0061] Figure 24 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0062] Figure 25 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0063] Figure 26 This is a view showing the inner shell, outer shell, and mounting frame of a refrigerator according to an embodiment of the present disclosure. Detailed Implementation

[0064] The various embodiments and terms used in this document are not intended to limit the technical features described herein to a particular embodiment, but should be understood to include various modifications, equivalents or alternatives to the respective embodiments.

[0065] In the description of the accompanying drawings, similar reference numerals may be used for similar or related parts.

[0066] Unless the relevant context clearly indicates otherwise, the singular form of the noun corresponding to an item may include one or more items.

[0067] In this document, phrases such as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, “at least one of A, B or C”, etc., may include any or all possible combinations of the items listed together in the corresponding phrase.

[0068] As used in this article, the term "and / or" includes any and all combinations of one or more of the related listed items.

[0069] Terms such as “first,” “second,” “primary,” or “secondary” may be used only to distinguish one component from others, without limiting the component in other aspects (such as importance or order).

[0070] Furthermore, as used in this disclosure, the terms “front,” “rear,” “top,” “bottom,” “side,” “left,” “right,” “upper,” “lower,” etc., are defined with reference to the accompanying drawings and are not intended to limit the shape and position of each component.

[0071] It should be understood that when the terms “comprising,” “including,” “containing,” and / or “covering” are used in this specification, they indicate the presence of the stated features, figures, steps, operations, components, elements, or combinations thereof, but do not exclude the presence or addition of one or more other features, figures, steps, operations, components, elements, or combinations thereof.

[0072] It should be understood that when a component is described as being "connected to," "connected to," "supported by," or "in contact with" another component, it can be directly or indirectly connected to, connected to, supported by, or in contact with the other component. When a component is indirectly connected to, connected to, supported by, or in contact with another component, it can be connected to, connected to, supported by, or in contact with the other component through a third component.

[0073] It should also be understood that when a component is referred to as being "on" or "above" another component, it may be directly on the other component or there may be an intermediate component.

[0074] A refrigerator according to an embodiment of the present disclosure may include a main body.

[0075] The main body may include a thermal insulation component. The thermal insulation component insulates the interior of the storage compartment from the exterior of the storage compartment, thereby maintaining the interior temperature of the storage compartment at a suitable temperature, unaffected by the external environment. According to embodiments of this disclosure, the thermal insulation component may include a foamed insulation material such as polyurethane foam. According to embodiments of this disclosure, in addition to a foamed insulation material, the thermal insulation component may also include a vacuum insulation material, or may consist solely of a vacuum insulation material instead of a foamed insulation material.

[0076] The storage room can store various items, such as food, medicine, cosmetics, etc., and the storage room can be configured to be open on at least one side to facilitate the storage or retrieval of items.

[0077] A refrigerator may include one or more storage compartments. If a refrigerator has two or more storage compartments, each compartment may have a different purpose and may be maintained at a different temperature. For this purpose, the storage compartments may be separated by partition walls including insulation.

[0078] Storage compartments can be maintained within an appropriate temperature range depending on their intended use, and may include "refrigeration compartment," "freezer compartment," and "variable temperature compartment" based on their intended use and / or temperature range. A refrigerator compartment maintains an appropriate temperature for refrigerating food, and a freezer compartment maintains an appropriate temperature for freezing food. "Refrigeration" refers to keeping food refrigerated without freezing it; for example, a refrigerator compartment may maintain a temperature range of 0 to 7 degrees Celsius. "Freezing" refers to freezing food or keeping food frozen; for example, a freezer compartment may maintain a temperature range of -20 to -1 degrees Celsius. A variable temperature compartment may be used as either a refrigerator compartment or a freezer compartment, depending on the user's choice.

[0079] In addition to “refrigeration room,” “freezer room,” and “variable temperature room,” storage rooms can also be referred to by various other terms, such as “vegetable room (also known as vegetable storage room),” “fresh food room,” “cooling room,” and “ice making room.” The terms “refrigeration room,” “freezer room,” and “variable temperature room” used below should be understood as referring to storage rooms with corresponding uses and corresponding temperature ranges.

[0080] A refrigerator according to an embodiment of the present disclosure may include at least one door configured to open or close an open side of a storage compartment. Each door may be arranged to open and close one or more storage compartments, or a single door may be arranged to open and close multiple storage compartments. The door is rotatably or slidably mounted on the front of the body.

[0081] The door can seal the storage compartment when closed. Like the main body, the door may include thermal insulation to insulate the storage compartment when closed.

[0082] According to an embodiment, the door may include an outer door panel forming the front surface of the door, an inner door panel forming the rear surface of the door and facing the storage compartment, a top cover, a bottom cover, and a door insulation element disposed therein.

[0083] The inner door panel may have sealing gaskets along its edges to ensure a tight seal against the front surface of the body when the door is closed, thereby sealing the storage compartment. The inner door panel may include a rearwardly projecting flange to allow for the mounting of a door basket for storing items.

[0084] According to one embodiment, the door may include a door body and a front panel detachably connected to the front of the door body and forming the front surface of the door. The door body may include an outer door panel forming the front surface of the door body, an inner door panel forming the rear surface of the door body and facing the storage compartment, a top cover, a bottom cover, and a door insulation member disposed therein.

[0085] Refrigerators can be classified according to the arrangement of doors and storage compartments as French door refrigerators, side-by-side refrigerators, bottom-mounted freezer (BMF) refrigerators, top-mounted freezer (TMF) refrigerators, or single-door refrigerators.

[0086] A refrigerator according to an embodiment of the present disclosure may include a cold air supply device for supplying cold air to the storage compartment.

[0087] The cold air supply device may include machines, equipment, electronic devices and / or combinations thereof capable of generating and directing cold air to cool the storage compartment.

[0088] According to embodiments of this disclosure, a cold air supply device can generate cold air through a cooling cycle including the compression, condensation, expansion, and evaporation processes of a refrigerant. For this purpose, the cold air supply device may include a cooling cycle assembly having a compressor, condenser, expander, and evaporator to drive the cooling cycle. According to embodiments of this disclosure, the cold air supply device may include a semiconductor, such as a thermoelectric element. The thermoelectric element can cool the storage compartment through heating and cooling effects of the Peltier effect.

[0089] A refrigerator according to an embodiment of the present disclosure may include a machine compartment in which at least some components belonging to a cold air supply device are installed.

[0090] The machine room can be separated from and insulated from the storage room to prevent heat generated by components installed in the machine room from being transferred to the storage room. To dissipate heat from components installed inside the machine room, the machine room can be connected to the outside of the main structure.

[0091] A refrigerator according to an embodiment of the present disclosure may include a dispenser disposed on the door to provide water and / or ice. The dispenser may be disposed on the door to allow a user to obtain water and / or ice without opening the door.

[0092] A refrigerator according to an embodiment of the present disclosure may include an ice-making device for producing ice. The ice-making device may include an ice-making tray for storing water, an ice-transfer device for separating ice from the ice-making tray, and an ice bucket for storing the ice produced in the ice-making tray.

[0093] A refrigerator according to an embodiment of the present disclosure may include a controller for controlling the refrigerator.

[0094] The controller may include a memory for storing and / or memorizing data and / or programs for controlling the refrigerator, and a processor for outputting control signals for controlling the cold air supply device, etc., based on the programs and / or data memorized in the memory.

[0095] The memory can store or record various information, data, instructions, programs, etc., required for the operation of the refrigerator. The memory can also store temporary data generated when control signals are produced to control components included in the refrigerator. The memory may include at least one or a combination of volatile memory and non-volatile memory.

[0096] The processor controls the overall operation of the refrigerator. It controls the refrigerator's components by executing programs stored in memory. The processor may include a separate neural processing unit (NPU) that executes artificial intelligence (AI) models. Additionally, the processor may include a central processing unit (CPU), a graphics processing unit (GPU), etc. The processor can generate control signals to control the operation of the cold air supply unit. For example, the processor can receive temperature information from a temperature sensor in the storage compartment and generate cooling control signals based on this information to control the operation of the cold air supply unit.

[0097] Furthermore, the processor can process user input to the user interface and control the operation of the user interface based on programs and / or data stored in memory. The user interface can be provided through input and output interfaces. The processor can receive user input from the user interface. In addition, in response to user input, the processor can send display control signals and image data to the user interface for displaying images on the user interface.

[0098] The processor and memory can be arranged as a single unit or separately. The processor may include one or more processors. For example, the processor may include a main processor and at least one secondary processor. The memory may include one or more memory modules.

[0099] A refrigerator according to embodiments of the present disclosure may include a processor and a memory for controlling all components included in the refrigerator, and may include multiple processors and multiple memories for separately controlling the components of the refrigerator. For example, the refrigerator may include a processor and a memory for controlling the operation of a cold air supply device based on the output of a temperature sensor. Furthermore, the refrigerator may be separately equipped with a processor and a memory for controlling the operation of a user interface based on user input.

[0100] The communication module can communicate with external devices, such as servers, mobile devices, and other home appliances, via a nearby access point (AP). The AP can connect the local area network (LAN) to which the refrigerator or user device is connected to the wide area network (WAN) to which the server is connected. The refrigerator or user device can then connect to the server via the WAN.

[0101] The input interface may include buttons, a touchscreen, a microphone, etc. The input interface can receive user input and transmit the received user input to the processor.

[0102] The output interface may include a display, speakers, etc. The output interface can output various notifications, messages, and information generated by the processor.

[0103] In the following, various embodiments according to this disclosure will be described in detail with reference to the accompanying drawings.

[0104] Figure 1 This is a view showing a refrigerator according to an embodiment of the present disclosure. Figure 2 This is an exploded view showing a plurality of heat-insulating walls of a refrigerator according to an embodiment of the present disclosure. Figure 3 This is a view showing the rear insulation wall according to an embodiment of the present disclosure.

[0105] refer to Figures 1 to 3 The refrigerator 1 may include: a body 10 including a plurality of heat-insulating walls 11, 12, 13, 14 and 15; a storage compartment 20 formed inside the body 10; a door 21 arranged to open or close the storage compartment 20; and a thermoelectric module 22 configured to cool the storage compartment 20.

[0106] Multiple insulating walls 11, 12, 13, 14, and 15 may be assembled together to form body 10. The multiple insulating walls 11, 12, 13, 14, and 15 may be connected together in a variety of ways according to known methods. For example, each of the multiple insulating walls 11, 12, 13, 14, and 15 may include interlocking or hook-like structures.

[0107] The plurality of heat-insulating walls 11, 12, 13, 14, and 15 may include an upper heat-insulating wall 11, a left heat-insulating wall 12, a right heat-insulating wall 13, a lower heat-insulating wall 14, and a rear heat-insulating wall 15. The upper heat-insulating wall 11, the left heat-insulating wall 12, the right heat-insulating wall 13, the lower heat-insulating wall 14, and the rear heat-insulating wall 15 may be separately arranged and assembled together. However, at least a portion of the upper heat-insulating wall 11, the left heat-insulating wall 12, the right heat-insulating wall 13, the lower heat-insulating wall 14, and the rear heat-insulating wall 15 may be integrally formed.

[0108] Storage compartment 20 can store items (such as food). Storage compartment 20 may have an open front to allow items to be placed in or taken out of storage compartment 20.

[0109] Thermoelectric module 22 can utilize the Peltier effect to cool storage chamber 20. Thermoelectric module 22 can be installed in any one of the plurality of insulating walls 11, 12, 13, 14 and 15. Figure 2 An example is shown where the thermoelectric module 22 is arranged on the rear insulation wall 15 among a plurality of insulation walls 11, 12, 13, 14, and 15. However, this disclosure is not limited thereto, and the thermoelectric module 22 may be arranged on any other insulation wall. Furthermore, although... Figure 2 The image shows a thermoelectric module 22, but the refrigerator is not limited to this and may include multiple thermoelectric modules.

[0110] Each of the plurality of insulating walls 11, 12, 13, 14 and 15 may have an inner shell 31, an outer shell 34 and an insulating element 39 (also referred to as a heat insulation element) disposed in the insulating space 38 formed between the inner shell 31 and the outer shell 34 (see Figure 9 The inner shell 31 can form a storage compartment 20.

[0111] The inner shell 31 may be formed of a resin material, such as acrylonitrile-butadiene-styrene (ABS). The outer shell 34 may form the exterior of the body 10. The outer shell 34 may be formed of a metallic material, such as stainless steel.

[0112] The insulation 39 may include polyurethane foam. After the inner shell 31 and the outer shell 34 are joined, a polyurethane foam liquid is foamed and cured between the inner shell 31 and the outer shell 34 to form a polyurethane foam.

[0113] like Figure 3 As shown, among the plurality of insulation walls 11, 12, 13, 14 and 15, the insulation wall on which the thermoelectric module 22 is mounted (e.g., the rear insulation wall) may include a mounting frame 60. The thermoelectric module 22 may be mounted on the mounting frame 60.

[0114] The inner shell 31 of the insulation wall may include an inner shell opening 32, and the outer shell 34 of the insulation wall may include an outer shell opening 35. The mounting frame 60 may have a channel 61 connecting to the inner shell opening 32 and the outer shell opening 35. In other words, the mounting frame 60 may penetrate the insulation wall. The channel 61 may penetrate the insulation wall.

[0115] The mounting frame 60 is disposed between the inner shell 31 and the outer shell 34, such that the channel 61 of the mounting frame 60 connects the inner shell opening 32 and the outer shell opening 35. Then, the polyurethane foam liquid foams and cures in the heat insulation space 38 formed by the inner shell 31, the outer shell 34 and the mounting frame 60, so that the inner shell 31, the outer shell 34 and the mounting frame 60 can be firmly connected together.

[0116] Figure 4 This is a perspective view showing an installation frame according to an embodiment of the present disclosure. Figure 5 This is a perspective view showing the mounting frame according to an embodiment of the present disclosure from another direction. Figure 6 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to an embodiment of the present disclosure. Figure 7 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to an embodiment of the present disclosure from another direction. Figure 8 This is a cross-sectional view showing the state in which the thermoelectric module is connected to the insulation wall according to an embodiment of the present disclosure.

[0117] The mounting frame 60 may include a channel 61 formed inside the mounting frame 60. The channel 61 may connect the inner shell opening 32 and the outer shell opening 34. The channel 61 may include a front inlet 64 formed on the side of the mounting frame 60 facing the storage compartment, and a rear inlet 65 formed on the opposite side. The channel 61 may be formed by the inner surface 66 of the mounting frame 60.

[0118] Cooler 80 and radiator 90 can be connected to mounting frame 60. Cooler 80 can be connected to the side of mounting frame 60 facing storage compartment 20. Radiator 90 can be connected to the opposite side of mounting frame 60. In the following text, the side of mounting frame 60 facing storage compartment 20 can be referred to as the front side of mounting frame 60, and the opposite side of mounting frame 60 can be referred to as the rear side of mounting frame 60.

[0119] Mounting frame 60 may include fastening holes 73 formed on the front side of mounting frame 60 for connection to cooler 80. Mounting frame 60 may include fastening holes 74 formed on the rear side of mounting frame 60 for connection to radiator 90. Mounting frame 60 may be formed of a material with low thermal conductivity.

[0120] The thermoelectric module 22 may include a thermoelectric element 40, a cooler 80, and a radiator 90.

[0121] Thermoelectric element 40 may be disposed within channel 61. Thermoelectric element 40 may include a heat-absorbing surface 41 formed on one surface and a heat-generating surface 42 formed on the opposite surface. Thermoelectric element 40 may be disposed inside channel 61 such that the heat-absorbing surface 41 faces one side of storage chamber 20 and the heat-generating surface 42 faces the opposite side.

[0122] The thermoelectric element 40 can be positioned closer to the rear inlet 65 of the channel 60 than to the front inlet 64. For example, as shown in the figure, the thermoelectric element 40 can be positioned at the rear end of the channel 61. The reason for positioning the thermoelectric element 40 at the rear end of the channel 61 is that the heat generated by the thermoelectric element 40 is usually greater than the heat absorbed. Positioning the thermoelectric element 40 at the rear end of the channel 61 may facilitate heat dissipation on the heating surface 42 and improve the overall operating efficiency of the thermoelectric element 40.

[0123] Since the thermoelectric element 40 can be disposed at the rear end of the channel 61, it can directly contact the heat sink 91 disposed outside the rear side of the channel 60. And since the thermoelectric element 40 can be disposed at the rear end of the channel 61, it can be spaced apart from the cooling plate 81 disposed outside the front side of the channel 60. Therefore, the cooler 80 may include a cooling block 83 disposed within the channel 61 to contact the thermoelectric element 40.

[0124] In other words, the cooler 80 may include a cooling plate 81 disposed outside the channel 60 and a cooling block 83 disposed inside the channel 60, such that one side of the cooling block 83 contacts the cooling plate 81 and the other side contacts the heating surface 41 of the thermoelectric element 40. The cooling plate 81 and the cooling block 83 may be disposed separately or integrally formed. The cooler 80 may be formed of a metal material with good thermal conductivity, such as aluminum or copper.

[0125] The cooling plate 81 may have a flat plate shape. Multiple cooling fins 82 may protrude from the surface of the cooling plate 81 facing the storage chamber 20.

[0126] The cooling block 83 can be inserted into the interior of the channel 60 through the front inlet 64. In order to allow the cooling block 83 to be inserted into the interior of the channel 60, the cross-section of the cooling block 83 may be smaller than the cross-section 61a of the channel 61 or have a corresponding size.

[0127] The cooling plate 81 may have a larger dimension than the cross-sectional area 61a of the channel 61. In other words, the surface 81a of the cooling plate 81 facing the channel 61 (see...) Figure 7 It may have a size greater than the cross-section 61a of channel 61.

[0128] Thus, since the cooling plate 81 can have a larger cross-sectional area 61a than the channel 61, the heat transfer area of ​​the cooling plate 81 can be increased. In addition, more cooling fins 82 can be formed on the cooling plate 81, thereby improving the heat exchange efficiency between the cooler 80 and the air.

[0129] The heat sink 90 may include a heat dissipation plate 91 disposed outside the channel 60. The heat sink 90 may be formed of a metal material with good thermal conductivity, such as aluminum, copper, etc.

[0130] The heat sink 91 may have a flat plate shape. Multiple heat dissipation fins 92 may protrude from the surface of the heat sink 91 facing the exterior of the insulation wall. The heat sink 91 may have a dimension larger than the cross-sectional area 61a of the channel 61. In other words, one surface 91a of the heat sink 91 facing the channel 61 (see...) Figure 6 The size of the channel 61 can be larger than the size of the cross-section 61a of the channel 61.

[0131] Thus, since the heat sink 91 can have a larger cross-sectional area 61a than the channel 61, the heat transfer area of ​​the heat sink 91 can be increased. In addition, more cooling fins 92 can be formed on the heat sink 91, thereby improving the heat exchange efficiency between the radiator 90 and the air.

[0132] In this way, the cooling plate 81 and the heat sink 91 can have a size larger than the cross-sectional area 61a of the channel 61, because the cooler 80 and the heat sink 90 are respectively connected to the mounting frame 60. In other words, the cooler 80 can be connected to the front side of the mounting frame 60 independently of the heat sink 90, and the heat sink 90 can be connected to the rear side of the mounting frame 60 independently of the cooler 80, so the cooling plate 81 and the heat sink 91 can have a size larger than the cross-sectional area 61a of the channel 61.

[0133] The thermoelectric module 22 may include a heat-insulating member 50 that insulates the mounting frame 60 from the thermoelectric element 40. The heat-insulating member 50 prevents the mounting frame 60 from contacting the thermoelectric element 40. The heat-insulating member 50 may have a receiving hole 51 for receiving the thermoelectric element 40.

[0134] The thermoelectric element 40 may have a side surface connecting the heat-absorbing surface 41 and the heat-generating surface 42. Since the thermoelectric element 40 is housed in the receiving hole 51 of the heat insulation member 50, the heat insulation member 50 may surround the side surface of the thermoelectric element 40.

[0135] The mounting frame 60 may have a recess 67 for receiving the thermal insulation member 50. The recess 67 may be configured to be recessed in the inner surface 66 of the mounting frame.

[0136] This configuration allows the heat-absorbing surface 41 of the thermoelectric element 40 to contact and be supported by the cooler 80, the heat-generating surface 42 of the thermoelectric element 40 to contact and be supported by the heat sink 90, and the side surface of the element 40 to contact and be supported by the heat insulation member 50. The thermoelectric element 40 may not contact the mounting frame 60.

[0137] As described above, the cooler 80 and the radiator 90 can be connected to the mounting frame 60.

[0138] Cooler 80 can be connected to the front side of mounting frame 60 facing the storage compartment, and radiator 90 can be connected to the rear side of mounting frame 60 opposite to the front side.

[0139] The cooler 80 can be fixedly connected to the mounting frame 60 via a fastening member S1. The fastening member S1 may include a screw. The screw may include a screw body and a screw head formed at one end of the screw body, the diameter of the screw head being larger than the diameter of the screw body. External threads may be formed on the outer peripheral surface of the screw body.

[0140] The fastening member S1 can pass through the cooler 80 and be fastened to the mounting frame 60. For this purpose, a through hole 86 for the fastening member S1 to pass through can be formed in the cooler 80. Specifically, the through hole 86 for the fastening member S1 to pass through can be formed in the cooling plate 81. A fastening hole 73 for fastening the fastening member S1 can be formed in the mounting frame 60. An internal thread corresponding to the external thread formed on the fastening member S1 can be formed on the inner circumferential surface of the fastening hole 73. Multiple through holes 86 and fastening holes 73 can be provided.

[0141] The radiator 90 can be securely connected to the mounting frame 60 via a fastening member S2. The fastening member S2 may include a screw. The screw may include a screw body and a screw head formed at one end of the screw body, the diameter of the screw head being larger than the diameter of the screw body. External threads may be formed on the outer peripheral surface of the screw body.

[0142] The fastening member S2 can pass through the radiator 90 to be fastened to the mounting frame 60. For this purpose, a through hole 96 for the fastening member S2 to pass through can be formed in the radiator 90. Specifically, the through hole 96 for the fastening member S2 to pass through can be formed in the heat sink 91. A fastening hole 74 for fastening the fastening member S2 can be formed in the mounting frame 60. An internal thread corresponding to the external thread formed on the fastening member S2 can be formed on the inner circumferential surface of the fastening hole 74. Multiple through holes 96 and fastening holes 74 can be provided.

[0143] In this way, the cooler 80 and the radiator 90 can be connected to the mounting frame 60 respectively, with the cooler 80 in contact with the heat-absorbing surface 41 of the thermoelectric element 40, and the radiator 90 in contact with the heat-generating surface 42 of the thermoelectric element 40. Therefore, the pressure between the cooler 80 and the heat-absorbing surface 41 of the thermoelectric element 40, and the pressure between the radiator 90 and the heat-generating surface 42 of the thermoelectric element 40, can be guaranteed. By sufficiently guaranteeing the pressure between the cooler 80 and the heat-absorbing surface 41 of the thermoelectric element 40, and the pressure between the radiator 90 and the heat-generating surface 42 of the thermoelectric element 40, the efficiency of the cooling effect achieved by the thermoelectric module 22 can be improved.

[0144] Conversely, when coolers and radiators are attached to thermoelectric elements and then housed in separate frames or housings to form thermoelectric modules, and these thermoelectric modules are connected to insulation walls, it may be difficult to adequately guarantee the pressure between the cooler and the thermoelectric element, as well as the pressure between the radiator and the thermoelectric element.

[0145] Furthermore, according to the embodiments of this disclosure, despite the low temperature inside the storage chamber 20 or the temperature difference between the inside and outside of the storage chamber 20, the pressure between the cooler 80 and the heat-absorbing surface 41 of the thermoelectric element 40 and the pressure between the radiator 90 and the heat-generating surface 42 of the thermoelectric element 40 can still be stably maintained.

[0146] Conversely, when a cooler and radiator are attached to a thermoelectric element and then housed in a separate frame or housing to form a thermoelectric module, and this module is then connected to an insulating wall, the thermal deformation of the frame or housing may prevent the stable maintenance of pressure between the cooler and the thermoelectric element, and between the radiator and the thermoelectric element. This thermal deformation can lead to a gradual increase in contact thermal resistance between the cooler and the thermoelectric element, and between the radiator and the thermoelectric element, resulting in reduced efficiency of the thermoelectric module. In other words, the pressure between the cooler and the thermoelectric element may weaken, leading to small gaps between them, and vice versa. Consequently, air layers may form between the cooler and the thermoelectric element, and between the radiator and the thermoelectric element, thus reducing heat exchange efficiency.

[0147] However, according to the embodiments of this disclosure, since the cooler 80 and the radiator 90 are directly connected to the mounting frame 60 arranged in the heat insulation wall, and no separate frame or housing is inserted between the cooler 80 and the mounting frame 60 and between the radiator 90 and the mounting frame 60, the pressure between the cooler 80 and the thermoelectric element 40 and the pressure between the radiator 90 and the thermoelectric element 40 can be stably maintained despite the low temperature in the storage room or the temperature difference between the inside and outside of the storage room.

[0148] Figure 9 This is a view showing a method of connecting a thermoelectric module to an insulating wall according to an embodiment of the present disclosure. Figure 10 This is a view showing a method of connecting a thermoelectric module to an insulating wall according to an embodiment of the present disclosure.

[0149] refer to Figure 9 and Figure 10 The following describes a method for connecting a thermoelectric module to a heat insulation wall according to an embodiment of the present disclosure.

[0150] like Figure 9 As shown in (a), the mounting frame 60 can be positioned between the inner shell 31 and the outer shell 34, such that the channel 61 of the mounting frame 60 connects the inner shell opening 32 and the outer shell opening 35. The inner shell 31, the outer shell 34, and the mounting frame 60 can be temporarily secured by separate clamps. In this state, the thermal insulation space 38 can be formed by the inner shell 31, the outer shell 34, and the mounting frame 60.

[0151] like Figure 9As shown in (b), polyurethane foam can be filled into the insulating space 38 formed between the inner shell 31, the outer shell 34, and the mounting frame 60, allowing it to foam and cure. During the foaming and curing process of the polyurethane foam, the inner shell 31, the outer shell 34, and the mounting frame 60 can be firmly connected together. Once the polyurethane foam has cured, an insulation element 39 is formed. As the polyurethane foam cures, an insulating wall comprising the inner shell 31, the outer shell 34, the mounting frame 60, and the insulation element 39 is formed.

[0152] like Figure 9 As shown in (c), the cooler 80 can be connected to the mounting frame 60. The cooling block 83 of the cooler 80 can be received into the interior of the channel 61 through the front inlet 64 of the channel 61. With the cooling block 83 received in the channel 61, the cooler 80 and the mounting frame 60 can be connected together by fastening members S1. Each fastening member S1 can pass through the cooler 80 and be fastened to the fastening hole 73 of the mounting frame 60.

[0153] like Figure 10 As shown in (d), the thermal insulation member 50 can be accommodated in the groove 67 of the mounting frame 60.

[0154] like Figure 10 As shown in (e), the thermoelectric element 40 may be arranged in the receiving hole 51 of the heat insulation member 50. The heat-absorbing surface 41 of the thermoelectric element 40 may be supported by the cooling block 83 of the cooler 80. The side surface connecting the heat-absorbing surface 41 and the heat-generating surface 42 of the thermoelectric element 40 may contact and be supported by the inner surface of the heat insulation member 50. The thermoelectric element 40 may not contact the mounting frame 60.

[0155] like Figure 10 As shown in (f), the heat sink 90 can be connected to the mounting frame 60. The heat dissipation plate 91 of the heat sink 90 can contact the heating surface 42 of the thermoelectric element 40. Each fastening member S2 can pass through the heat sink 90 and be fastened to the fastening hole 74 of the mounting frame 60.

[0156] Figure 11 This is a perspective view showing an installation frame according to another embodiment of the present disclosure. Figure 12 This is a perspective view showing the mounting frame according to an embodiment of the present disclosure from another direction. Figure 13 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to another embodiment of the present disclosure. Figure 14 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to another embodiment of the present disclosure from another direction. Figure 15 This is a cross-sectional view showing the state in which the thermoelectric module is connected to the insulation wall according to another embodiment of the present disclosure.

[0157] refer to Figures 11 to 15The following section describes the structure of the mounting frame and thermoelectric module connected to the insulation wall according to another embodiment of this disclosure. Configurations identical to those described in the above embodiments may be assigned the same reference numerals. Descriptions of configurations or structures identical to those described in the above embodiments may be omitted.

[0158] Mounting frame 260 may include a channel 261 formed inside mounting frame 260. Channel 261 may connect inner shell opening 232 and outer shell opening 234. Channel 261 may include a front inlet 264 formed on the side of mounting frame 260 facing the storage compartment, and a rear inlet 265 formed on the opposite side. Channel 261 may be formed by inner surface 266 of mounting frame 260.

[0159] Cooler 280 and radiator 290 can be connected to mounting frame 260. Cooler 280 can be connected to the side of mounting frame 260 facing storage compartment 20. Radiator 290 can be connected to the opposite side of mounting frame 260.

[0160] Mounting frame 260 may include fastening holes 273 formed on mounting frame 260 for connection to cooler 280 and radiator 290. Fastening holes 273 may be formed through the front and rear sides of mounting frame 260.

[0161] The thermoelectric module 22 may include a thermoelectric element 40, a cooler 280, and a radiator 290.

[0162] The thermoelectric element 40 may be positioned closer to the rear inlet 265 of the channel 261 than to the front inlet 264 of the channel 261. For example, as shown, the thermoelectric element 40 may be positioned at the rear end of the channel 261.

[0163] Since the thermoelectric element 40 can be disposed at the rear end of the channel 261, it can directly contact the heat sink 291 disposed outside the rear side of the channel 261. And since the thermoelectric element 40 can be disposed at the rear end of the channel 261, it can be spaced apart from the cooling plate 281 disposed outside the front side of the channel 261. Therefore, the cooler 280 may include a cooling block 283 disposed within the channel 261 to contact the thermoelectric element 40.

[0164] In other words, the cooler 280 may include a cooling plate 281 disposed outside the channel 261 and a cooling block 283 disposed inside the channel 261, such that one side of the cooling block 283 contacts the cooling plate 281 and the other side contacts the heating surface 41 of the thermoelectric element 40. The cooling plate 281 and the cooling block 283 may be disposed separately or integrally formed. The cooler 280 may be formed of a metal material with good thermal conductivity, such as aluminum or copper.

[0165] The cooling plate 281 may have a flat plate shape. Multiple cooling fins 282 may protrude from the surface of the cooling plate 281 facing the storage chamber 20. A cooling block 283 may be inserted into the interior of the channel 261 through the front inlet 264. In order to allow the cooling block 283 to be inserted into the channel 261, the cross-section of the cooling block 283 may be smaller than the cross-section 261a of the channel 261, or have a corresponding size.

[0166] The cooling plate 281 may have a larger dimension than the cross-sectional area 261a of the channel 261. In other words, the surface 281a of the cooling plate 281 facing the channel 261 (see...) Figure 14 It may have a larger dimension than the cross-section 261a of channel 261.

[0167] Thus, since the cooling plate 281 can have a larger cross-sectional area than the channel 261a, the heat transfer area of ​​the cooling plate 281 can be increased. In addition, more cooling fins 282 can be formed on the cooling plate 281, thereby improving the heat exchange efficiency between the cooler 280 and the air.

[0168] The heat sink 290 may include a heat dissipation plate 291 disposed outside the channel 261. The heat sink 290 may be formed of a metal material with good thermal conductivity, such as aluminum or copper.

[0169] The heat sink 291 may have a flat plate shape. Multiple heat dissipation fins 292 may protrude from the surface of the heat sink 291 facing the outside of the insulation wall. The heat sink 291 may have a dimension larger than the cross-sectional area 261a of the channel 261. In other words, one surface 291a of the heat sink 291 facing the channel 261 (see...) Figure 13 The size of the channel 261 can be larger than the size of the cross section 261a of the channel 261.

[0170] Thus, since the heat sink 291 can have a larger cross-sectional area than the channel 261a, the heat transfer area of ​​the heat sink 291 can be increased. Furthermore, more cooling fins 292 can be formed on the heat sink 291, thereby improving the heat exchange efficiency between the radiator 290 and the air.

[0171] The mounting frame 260 may have a recess 267 for receiving the thermal insulation member 50. The recess 267 may be formed as a depression in the inner surface 266 of the mounting frame.

[0172] This configuration allows the heat-absorbing surface 41 of the thermoelectric element 40 to contact and be supported by the cooler 280, the heat-generating surface 42 of the thermoelectric element 40 to contact and be supported by the heat sink 290, and the side surface of the thermoelectric element 40 to contact and be supported by the heat insulation member 50. The thermoelectric element 40 may not contact the mounting frame 260.

[0173] As described above, the cooler 280 and the radiator 290 can be connected together to the mounting frame 260. The cooler 280 can be connected to the front side of the mounting frame 260 facing the storage compartment, and the radiator 290 can be connected to the rear side of the mounting frame 260 opposite to the front side. Alternatively, the cooler 280 and the radiator 290 can be connected together by a fastening member S.

[0174] Specifically, the cooler 280 and the radiator 290 are fixedly connected to the mounting frame 260 via a fastening member S. The fastening member S may include a screw. The screw may include a screw body and a screw head formed at one end of the screw body, the diameter of the screw head being larger than the diameter of the screw body. External threads may be formed on the outer peripheral surface of the screw body.

[0175] As shown in the figure, the fastening member S can pass through the radiator 290 and the mounting frame 260 to be fastened to the cooler 280. For this purpose, a through hole 296 for the fastening member S to pass through can be formed in the radiator 290, a through hole 273 for the fastening member S to pass through can be formed in the mounting frame 260, and a fastening hole 286 for the fastening member S to be fastened can be formed in the cooler 280.

[0176] Specifically, through hole 296 can be formed in heat dissipation plate 291 of radiator 290, through hole 273 can be formed in mounting frame 260, and fastening hole 286 can be formed in cooling plate 281 of cooler 280.

[0177] An internal thread corresponding to the external thread formed on the fastening member S can be formed on the inner circumferential surface of the fastening hole 286. Multiple through holes 296 and fastening holes 286 can be provided.

[0178] However, contrary to the above embodiment, the fastening member S can pass through the cooler 280 and the mounting frame 260 to be fastened to the radiator 290. For this purpose, a through hole for the fastening member S to pass through can be formed in the cooler 280, a through hole 273 for the fastening member S to pass through can be formed in the mounting frame 260, and a fastening hole for the fastening member S to be fastened can be formed in the radiator 290.

[0179] Specifically, through holes can be formed in the cooling plate 281 of the cooler 280, through holes 273 can be formed in the mounting frame 260, and fastening holes can be formed in the heat dissipation plate 281 of the radiator 290.

[0180] In this way, the cooler 280 and the radiator 290 can be directly connected together via the fastening member S, thus maintaining the pressure between the cooler 280 and the heat-absorbing surface 41 of the thermoelectric element 40, as well as the pressure between the radiator 290 and the heat-generating surface 42 of the thermoelectric element 40, more stably. In other words, despite the low temperature inside the storage chamber 20 or the temperature difference between the inside and outside of the storage chamber 20, the pressure between the cooler 280 and the heat-absorbing surface 41 of the thermoelectric element 40, as well as the pressure between the radiator 290 and the heat-generating surface 42 of the thermoelectric element 40, can still be stably maintained.

[0181] Figure 16 This is a view showing a method of connecting a thermoelectric module to an insulating wall according to an embodiment of the present disclosure. Figure 17 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0182] refer to Figure 16 and Figure 17 The following describes a method for connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0183] like Figure 16 As shown in (a), the mounting frame 260 can be positioned between the inner shell 31 and the outer shell 34, such that the channel 261 of the mounting frame 260 connects the inner shell opening 32 and the outer shell opening 35. The inner shell 31, the outer shell 34, and the mounting frame 260 can be temporarily secured by separate clamps. In this state, the thermal insulation space 38 can be formed by the inner shell 31, the outer shell 34, and the mounting frame 260.

[0184] like Figure 16 As shown in (b), polyurethane foam can be filled into the insulating space 38 formed between the inner shell 31, the outer shell 34, and the mounting frame 260, allowing it to foam and cure. During the foaming and curing process of the polyurethane foam, the inner shell 31, the outer shell 34, and the mounting frame 260 can be firmly connected together. Once the polyurethane foam has cured, the insulation element 39 is formed. As the polyurethane foam cures, an insulating wall comprising the inner shell 31, the outer shell 34, the mounting frame 260, and the insulation element 39 is formed.

[0185] like Figure 16 As shown in (c), the cooler 280 can be temporarily connected to the mounting frame 260 using a separate clamp. The cooling block 283 of the cooler 280 can be received into the interior of the channel 261 through the front inlet 264 of the channel 261.

[0186] like Figure 17 As shown in (d), the thermal insulation member 50 can be accommodated in the groove 267 of the mounting frame 260.

[0187] like Figure 17As shown in (e), the thermoelectric element 40 may be disposed in the receiving hole 51 of the heat insulation member 50. The heat-absorbing surface 41 of the thermoelectric element 40 may be supported by the cooling block 283 of the cooler 280. The side surface connecting the heat-absorbing surface 41 and the heat-generating surface 42 of the thermoelectric element 40 may contact and be supported by the inner surface of the heat insulation member 50. The thermoelectric element 40 may not contact the mounting frame 260.

[0188] like Figure 17 As shown in (f), the cooler 280 and the radiator 290 can be connected to the mounting frame 260 via a fastening member S. Alternatively, the cooler 280 and the radiator 290 can be directly connected via the fastening member S. The fastening member S can pass through the radiator 290 and the mounting frame 260 to fasten to the cooler 280. However, according to an embodiment, the fastening member S can pass through the cooler 280 and the mounting frame 260 to fasten to the radiator 290.

[0189] Figure 18 This is a perspective view showing an installation frame according to another embodiment of the present disclosure. Figure 19 This is a perspective view showing the mounting frame according to another embodiment of the present disclosure from another direction. Figure 20 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to an embodiment of the present disclosure. Figure 21 This is a perspective view showing the structure of the thermoelectric module connected to the heat insulation wall according to another embodiment of the present disclosure from another direction. Figure 22 This is a cross-sectional view showing the state in which the thermoelectric module is connected to the insulation wall according to another embodiment of the present disclosure.

[0190] refer to Figures 18 to 22 The following section describes the structure of the mounting frame and thermoelectric module connected to the insulation wall according to another embodiment of this disclosure. Configurations identical to those described in the above embodiments may be assigned the same reference numerals. Descriptions of configurations or structures identical to those described in the above embodiments may be omitted.

[0191] Mounting frame 360 ​​may include a channel 361 formed inside mounting frame 360. Channel 361 may connect inner shell opening 32 and outer shell opening 34. Channel 361 may include a front inlet 364 formed on the side of mounting frame 360 ​​facing the storage compartment and a rear inlet 365 formed on the opposite side.

[0192] Channel 361 may be formed by the inner surface 366 of mounting frame 360. Channel 361 may include a first channel 362 having a first cross-section 362a and a second channel 363 having a second cross-section 363a larger than the first cross-section 362a.

[0193] Cooler 380 and radiator 390 can be connected to mounting frame 360. Cooler 380 can be connected to the side of mounting frame 360 ​​facing storage compartment 20. Radiator 390 can be connected to the opposite side of mounting frame 360.

[0194] Mounting frame 360 ​​may include fastening holes 373 formed on the rear side of mounting frame 360 ​​for connection to heat sink 390. Mounting frame 360 ​​may be formed of a material with low thermal conductivity.

[0195] The thermoelectric module 22 may include a thermoelectric element 40, a cooler 380, and a radiator 390.

[0196] The thermoelectric element 40 may be positioned closer to the rear inlet 365 of the channel 360 than to the front inlet 364 of the channel 360. For example, as shown, the thermoelectric element 40 may be positioned at the rear end of the channel 361.

[0197] Since the thermoelectric element 40 can be disposed at the rear end of the channel 361, it can directly contact the heat sink 391 disposed outside the rear side of the channel 360. And since the thermoelectric element 40 can be disposed at the rear end of the channel 361, it can be spaced apart from the cooling plate 381 disposed outside the front side of the channel 360. Therefore, the cooler 380 may include a cooling block 383 disposed within the channel 361 to contact the thermoelectric element 40.

[0198] In other words, the cooler 380 may include a cooling plate 381 disposed outside the channel 361 and a cooling block 383 disposed inside the channel 360, such that one side of the cooling block 383 contacts the cooling plate 381 and the other side contacts the heating surface 41 of the thermoelectric element 40.

[0199] The cooling block 383 may include a first cooling block 384 disposed in a first channel 362 of channel 361, and a second cooling block 386 disposed in a second channel 363 of channel 361.

[0200] The first cooling block 384 can be inserted into the first channel 362 through the front inlet 364. In order to allow the first cooling block 384 to be inserted into the first channel 362, the cross-section of the first cooling block 384 may be smaller than the cross-section 362a of the first channel 362 or have a corresponding size.

[0201] The second cooling block 386 can be inserted into the second channel 363 through the rear inlet 365. In order to allow the second cooling block 386 to be inserted into the second channel 363, the cross-section of the second cooling block 386 may be smaller than the cross-section 363a of the second channel 363 or have a corresponding size.

[0202] The cooling plate 381 and the first cooling block 384 can be disposed separately or integrally formed. This drawing shows an example where the cooling plate 381 and the first cooling block 384 are integrally formed.

[0203] However, the first cooling block 384 and the second cooling block 386 can be disposed separately. This is because, as described above, the first cooling block 384 can be inserted into the first channel 362 through the front inlet 364, and the second cooling block 386 can be inserted into the second channel 363 through the rear inlet 365. The first cooling block 384 and the second cooling block 386 can contact each other.

[0204] The cooler 380 may be formed of a metallic material with good thermal conductivity, such as aluminum or copper. The cooling plate 381 may have a flat plate shape. Multiple cooling fins 382 may protrude from the surface of the cooling plate 381 facing the storage chamber 30. The cooling plate 381 may have a size larger than the cross-section 362a of the first channel 362 and the cross-section 363a of the second channel 363. In other words, the surface 381a of the cooling plate 381 facing the channel 361 (see...) Figure 21 It may have a larger size than the cross-section 362a of the first channel 362 and the cross-section 363a of the second channel 363.

[0205] Thus, since the cooling plate 381 can have a larger cross-sectional area than the first channel 362's cross-sectional area 362a and the second channel 363's cross-sectional area 363a, the heat transfer area of ​​the cooling plate 381 can be increased. Furthermore, more cooling fins 382 can be formed on the cooling plate 381, thereby improving the heat exchange efficiency between the cooler 380 and the air.

[0206] The heat sink 390 may include a heat dissipation plate 381 disposed outside the channel 360. The heat sink 390 may be formed of a metal material with good thermal conductivity, such as aluminum or copper.

[0207] The heat sink 391 may have a flat plate shape. Multiple heat dissipation fins 392 may protrude from the surface of the heat sink 391 facing the exterior of the insulation wall. The heat sink 391 may have dimensions larger than the cross-section 362a of the first channel 362 and the cross-section 363a of the second channel 363. In other words, one surface 391a of the heat sink 391 facing the channel 361 (see...) Figure 20 The size of the first channel 362 can be larger than the size of the cross-section 362a of the first channel 362 and the size of the cross-section 363a of the second channel 363.

[0208] Thus, since the heat sink 391 can have a larger cross-sectional area than the channel 361a, the heat transfer area of ​​the heat sink 391 can be increased. Furthermore, more cooling fins 392 can be formed on the heat sink 391, thereby improving the heat exchange efficiency between the radiator 390 and the air.

[0209] The mounting frame 360 ​​may have a recess 367 for receiving the thermal insulation member 50. The recess 367 may be formed as a depression in the inner surface 366 of the mounting frame.

[0210] The mounting frame 360 ​​may include a first inner surface 366a forming a first channel 362, a second inner surface 366b forming a second channel 363, and a stepped surface 368 connecting the first inner surface 366a and the second inner surface 366b (see [link]). Figure 23 The second cooling block 386, located in the second channel 363, can be supported on the stepped surface 368.

[0211] This configuration allows the heat-absorbing surface 41 of the thermoelectric element 40 to contact and be supported by the cooler 380, the heat-generating surface 42 of the thermoelectric element 40 to contact and be supported by the heat sink 390, and the side surface of the thermoelectric element 40 to contact and be supported by the heat insulation member 50. The thermoelectric element 40 may not contact the mounting frame 360.

[0212] As described above, the cooler 380 and radiator 390 can be connected to the mounting frame 360.

[0213] Cooler 380 can be connected to the front side of mounting frame 360 ​​facing the storage compartment, and radiator 390 can be connected to the rear side of mounting frame 360 ​​opposite to the front side.

[0214] The cooler 380 can be securely connected to the mounting frame 360 ​​via a fastening member S3. The fastening member S3 may include a screw. The screw may include a screw body and a screw head formed at one end of the screw body, the diameter of the screw head being larger than the diameter of the screw body. External threads may be formed on the outer peripheral surface of the screw body.

[0215] The fastening member S3 can pass through the cooling plate 381 and the first cooling block 384 to be fastened to the second cooling block 386. For this purpose, a through hole for the fastening member S3 to pass through can be formed in the cooling plate 381, a through hole 385 for the fastening member S3 to pass through can be formed in the first cooling block 384, and a fastening hole 387 for fastening the fastening member S3 can be formed in the second cooling block 386. An internal thread corresponding to the external thread formed on the fastening member S3 can be formed on the inner circumferential surface of the fastening hole 387.

[0216] Thus, the fastening member S3 can pass through the cooling plate 381 and the first cooling block 384 to be fastened to the second cooling block 386, thereby allowing the cooler 380 to be connected to the mounting frame 360. In this case, the second cooling block 386 can be supported by the stepped surface 368 of the first inner surface 366a and the second inner surface 366b of the mounting frame 360.

[0217] This configuration eliminates the need for through holes or fastening holes in the mounting frame 360 ​​to secure the cooler 380. Furthermore, it prevents heat conduction through the fastening components.

[0218] The radiator 390 can be securely connected to the mounting frame 360 ​​via a fastening member S4. The fastening member S4 may include a screw. The screw may include a screw body and a screw head formed at one end of the screw body, the diameter of the screw head being larger than the diameter of the screw body. External threads may be formed on the outer peripheral surface of the screw body.

[0219] The fastening member S4 can pass through the radiator 390 to be fastened to the mounting frame 360. For this purpose, a through hole 396 for the fastening member S4 to pass through can be formed in the radiator 390. Specifically, the through hole 396 for the fastening member S4 to pass through can be formed in the heat sink 91. A fastening hole 373 for fastening the fastening member S4 can be formed in the mounting frame 360. An internal thread corresponding to the external thread formed on the fastening member S4 can be formed on the inner circumferential surface of the fastening hole 373. Multiple through holes 396 and fastening holes 373 can be provided.

[0220] Figure 23 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure. Figure 24 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure. Figure 25 This is a view illustrating a method of connecting a thermoelectric module to an insulating wall according to another embodiment of the present disclosure.

[0221] refer to Figures 23 to 25 The following describes a method for connecting a thermoelectric module to an insulating wall according to another embodiment of this disclosure. Configurations identical to those in the above embodiments may be assigned the same reference numerals. Descriptions of configurations or structures identical to those in the above embodiments may be omitted.

[0222] like Figure 23 As shown in (a), the mounting frame 360 ​​can be positioned between the inner shell 31 and the outer shell 34, such that the channel 361 of the mounting frame 360 ​​connects the inner shell opening 32 and the outer shell opening 35. The inner shell 31, the outer shell 34, and the mounting frame 360 ​​can be temporarily secured by separate clamps. In this state, the thermal insulation space 38 can be formed by the inner shell 31, the outer shell 34, and the mounting frame 360.

[0223] like Figure 23As shown in (b), polyurethane foam can be filled into the thermal insulation space 38 formed between the inner shell 31, the outer shell 34, and the mounting frame 360, allowing it to foam and cure. During the foaming and curing process of the polyurethane foam, the inner shell 31, the outer shell 34, and the mounting frame 360 ​​can be firmly connected together. Once the polyurethane foam has cured, a thermal insulation element 39 is formed. As the polyurethane foam cures, an insulating wall comprising the inner shell 31, the outer shell 34, the mounting frame 360, and the thermal insulation element 39 is formed.

[0224] like Figure 23 As shown in (c), the second cooling block 386 may be disposed in the second channel 363 of the mounting frame 360. The second cooling block 386 may be accommodated in the second channel 363 through the rear inlet 385 of the channel 361. The second cooling block 386 may be supported by the stepped surface 368 of the mounting frame 360, which connects the first inner surface 366a and the second inner surface 366b of the mounting frame 360.

[0225] like Figure 24 As shown in (d), a first cooling block 384 may be disposed in a first channel 362 of the mounting frame 360. The first cooling block 384 may be accommodated in the first channel 362 through the front inlet 384 of the channel 361.

[0226] Thus, when the first cooling block 384 and the second cooling block 386 are respectively accommodated in the first channel 362 and the second channel 636, the cooling plate 381, the first cooling block 384, and the second cooling block 386 can be connected by the fastening member S3. The fastening member S3 can pass through the cooling plate 381 and the first cooling block 384 to fasten to the second cooling block 386. The cooling plate 381, the first cooling block 384, and the second cooling block 386 can be connected by the fastening member S3, so that the cooler 380 can be connected to the mounting frame 360.

[0227] like Figure 24 As shown in (e), the thermal insulation member 50 can be accommodated in the groove 367 of the mounting frame 360.

[0228] like Figure 24 As shown in (f), the thermoelectric element 40 can be disposed in the receiving hole 51 of the heat insulation member 50. The heat-absorbing surface 41 of the thermoelectric element 40 can be supported by the second cooling block 386 of the cooler 380. The side surface connecting the heat-absorbing surface 41 and the heat-generating surface 42 of the thermoelectric element 40 can contact and be supported by the inner surface of the heat insulation member 50. The thermoelectric element 40 may not contact the mounting frame 360.

[0229] like Figure 25As shown in (g), the heat sink 390 can be connected to the mounting frame 360. The heat dissipation plate 391 of the heat sink 390 can contact the heating surface 42 of the thermoelectric element 40. The fastening member S4 can pass through the heat sink 390 to fasten to the fastening hole 373 of the mounting frame 360.

[0230] Figure 26 This is a view showing the inner shell, outer shell, and mounting frame of a refrigerator according to an embodiment of the present disclosure. The connection structure of the inner shell, outer shell, and mounting frame of the main body of the refrigerator according to an embodiment of the present disclosure will be described. For configurations and structures identical to those described in the above embodiments, descriptions may be omitted.

[0231] The main body 410 of the refrigerator may include an integral inner shell 431. A storage compartment 420 may be formed from the integral inner shell 431. In other words, the integral inner shell 431 may form the upper surface, left surface, right surface, lower surface, and rear surface of the storage compartment 420. An outer shell 434 may be connected to the outside of the inner shell 431. An inner shell opening 432 may be formed in the inner shell 431, and an outer shell opening 435 may be formed in the outer shell 434.

[0232] The mounting frame 460 may have channels connecting to the inner shell opening 432 and the outer shell opening 435. The mounting frame 460 is disposed between the inner shell 431 and the outer shell 434, such that the channels of the mounting frame 460 connect the inner shell opening 432 and the outer shell opening 435, and then polyurethane foam is foamed and cured in the thermally insulated space formed by the inner shell 431, the outer shell 434 and the mounting frame 460, so that the inner shell 431, the outer shell 434 and the mounting frame 460 can be fixedly connected together.

[0233] Although the technical concept of this disclosure has been described above through specific embodiments, the scope of this disclosure is not limited to these embodiments. Various modifications and variations that can be made by those skilled in the art without departing from the technical concept set forth in the claims should be considered within the scope of this disclosure.

Claims

1. A refrigerator, including: The main body includes multiple insulated walls; as well as Storage room, located within the main body; At least one of the plurality of insulating walls includes: Inner shell, with an inner shell opening; The outer shell is connectable to the inner shell and has an outer shell opening; The mounting frame is disposed between the inner shell and the outer shell, and has a channel such that when the mounting frame is disposed between the inner shell and the outer shell, the channel is located between the opening of the inner shell and the opening of the outer shell. A heat insulation component is disposed in the heat insulation space between the inner shell and the outer shell, such that when the heat insulation component is disposed in the heat insulation space, one end of the channel of the mounting frame is located at the inner shell opening of the inner shell, and the other end of the channel of the mounting frame opposite to the one end of the channel is located at the outer shell opening. A thermoelectric element for cooling the storage chamber, having a heat-absorbing surface on one side facing the storage chamber and a heat-generating surface on the opposite side; A cooler for exchanging heat with the heat-absorbing surface when in contact with it; and A heat sink for exchanging heat with the heating surface when in contact with it; The cooler and the radiator are respectively connected to the mounting frame.

2. The refrigerator according to claim 1, further comprising: A first fastening member is configured to pass through the cooler to fasten it to the mounting frame, thereby connecting the cooler to the mounting frame; as well as A second fastening member is configured to pass through the radiator to fasten it to the mounting frame, thereby connecting the radiator to the mounting frame.

3. The refrigerator according to claim 1, wherein, The cooler includes a cooling plate located outside the path of the channel and a cooling block located within the path of the channel, and The heat sink includes a heat dissipation plate located outside the path of the channel.

4. The refrigerator according to claim 3, wherein, The dimensions of one surface of the cooling plate facing the channel and the dimensions of one surface of the heat dissipation plate facing the channel are both larger than the cross-sectional dimensions of the channel.

5. The refrigerator according to claim 3, wherein, The cooling block is in contact with the heat-absorbing surface, and the heat dissipation plate is in contact with the heat-generating surface.

6. The refrigerator according to claim 1, wherein, One end of the passage is the front entrance on the side of the mounting frame facing the storage compartment, and the other end of the passage is the rear entrance. The thermoelectric element is closer to the rear inlet than the front inlet.

7. The refrigerator according to claim 1, further comprising: A thermal insulation component is configured to insulate the thermoelectric element from the mounting frame.

8. The refrigerator according to claim 7, wherein, The mounting frame includes grooves along its inner surface to allow for the installation of the thermal insulation member.

9. The refrigerator according to claim 1, wherein, The cooler includes: a first through hole, through which a first fastening member passes. The heat sink includes: a second through hole, a second fastening member passing through the second through hole, and The mounting frame includes: a first fastening hole to which a first fastening member is fastened; and a second fastening hole to which a second fastening member is fastened.

10. The refrigerator according to claim 1, further comprising: Fastening members are configured to pass through the mounting frame and one of the cooler and the radiator to fasten to the other of the cooler and the radiator.

11. The refrigerator according to claim 10, wherein, One of the cooler and the radiator includes a first through hole, through which the fastening member passes. The mounting frame includes a second through hole through which the fastening member passes, and The other of the cooler and the radiator includes a fastening hole to which the fastening member is fastened.

12. The refrigerator according to claim 3, wherein, The channel is a first channel having a first cross-section, and the mounting frame includes a second channel having a second cross-section larger than the first cross-section. The cooling block is a first cooling block disposed in the first channel, and the cooler includes a second cooling block disposed in the second channel.

13. The refrigerator according to claim 12, further comprising: A first fastening member is configured to pass through the cooling plate and the first cooling block to fasten to the second cooling block, thereby connecting the cooler to the mounting frame; as well as A second fastening member is configured to pass through the radiator to fasten it to the mounting frame, thereby connecting the radiator to the mounting frame.

14. The refrigerator according to claim 13, wherein, The cooling plate includes a first through hole, through which the first fastening member passes. The first cooling block includes a second through hole, through which the first fastening member passes. The second cooling block includes a first fastening hole, and the first fastening member is fastened to the first fastening hole. The heat sink includes a third through hole, through which the second fastening member passes, and The mounting frame includes a second fastening hole, and the second fastening member is fastened to the second fastening hole.

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