Heat exchange device and ice maker

Abstract

The present application relates to the technical field of household appliances, and discloses a heat exchange device and an ice maker, wherein the heat exchange device comprises a shell, a heat exchange side and a vacuum extraction structure are formed on the shell, the heat exchange side is used for connecting an article to be heat exchanged, and the vacuum extraction structure is used for connecting a vacuum extraction device; a heat exchange container is arranged at least partially in the shell and is used for containing a heat exchange medium, the heat exchange container has an input end and an output end, and the heat exchange container has a first side and a second side arranged oppositely, the first side is at least partially in contact with the heat exchange side of the shell, and the second side forms a gap with an inner surface of the shell corresponding to the second side. The heat exchange device of the embodiment of the present application can overcome the defect that the energy consumption of the heat exchange device in the related art is large, can improve the heat exchange efficiency of the heat exchange device, and is helpful to reduce the energy consumption of the heat exchange device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a heat exchange device and an ice maker. BACKGROUND

[0002] The heat exchange device, also known as a heat exchanger, is a device for transferring heat between different media, and the heat exchange device can transfer heat from a high-temperature fluid to a low-temperature fluid.

[0003] Taking the evaporator of an ice maker as an example, the evaporator usually includes a shell and a heat exchange container. The shell has a heat exchange surface for connecting ice grids. The heat exchange container is arranged in the shell and is used to contain heat exchange medium to heat the water in the ice grids. The remaining surface of the heat exchange container except the heat exchanger is pasted with a sponge for heat preservation. However, this cannot effectively avoid the interference of environmental heat, and there is still a problem of large energy loss of the heat exchanger, which is not conducive to improving the heat exchange efficiency of the high heat exchanger. SUMMARY

[0004] Therefore, the present application provides a heat exchange device and an ice maker to solve the problem of large energy loss and low heat exchange efficiency of the heat exchange device in the related art.

[0005] In a first aspect, the present application provides a heat exchange device, comprising:

[0006] A shell, the shell has a heat exchange side and a vacuum extraction structure formed thereon, the heat exchange side is used to connect an article to be heat exchanged, and the vacuum extraction structure is used to connect a vacuum extraction device;

[0007] A heat exchange container, at least partially arranged in the shell, used to contain heat exchange medium, the heat exchange container has an input end and an output end, the heat exchange container has a first side and a second side arranged oppositely, the first side is at least partially in contact with the heat exchange side of the shell, and the second side forms a gap with the corresponding inner surface of the shell.

[0008] Beneficial effects: the shell of the heat exchange device of the present application has a vacuum extraction structure, which can be used to connect a vacuum extraction device, so that the shell can be vacuumized by the vacuum extraction device. Therefore, the heat exchange device of the present application can be in a vacuum state during use, and the first side of the heat exchange container can be in contact with the heat exchange side for heat exchange.

[0009] In addition, the second side of the heat exchange container is in a vacuum environment and forms a gap with the shell, so that heat exchange between the second side of the heat exchange container and the external environment is avoided, energy consumption is reduced, and the cold or heat of the heat exchange medium can be concentrated on the heat exchange side, thereby improving the heat exchange efficiency of the heat exchange device.

[0010] On this basis, since the heat exchange device of the embodiment of the present application only exchanges heat with the heat exchange side, the heat or cold energy thereof cannot be fully utilized, and the remaining heat or cold energy returns to the refrigeration cycle system, thereby reducing the load of the compressor, so as to reduce the energy consumption.

[0011] Therefore, the heat exchange device of the embodiment of the present application can overcome the defect of large energy loss of the heat exchange device in the related art, can improve the heat exchange efficiency of the heat exchange device, and is helpful to reduce the energy consumption of the heat exchange device.

[0012] In an alternative embodiment, a vacuumizing through hole is formed on the shell, and the vacuumizing structure comprises:

[0013] A joint body is arranged in the vacuumizing through hole, and the joint body is sequentially provided with a first annular protrusion and a second annular protrusion in the outflow direction;

[0014] A sealing bead is movably arranged in the joint body and located between the first annular protrusion and the second annular protrusion, and can block the air inlet end of the joint body when abutting against the first annular protrusion;

[0015] An elastic member is supported between the sealing bead and the second annular protrusion.

[0016] Beneficial effects: through such arrangement, the vacuumizing device can be connected with the outflow end of the joint body, and the gap between the sealing bead and the second annular protrusion can be vacuumized, when the air pressure at the air inlet end of the joint body is greater than that at the outflow end, the sealing bead can compress the spring and expose the air inlet end of the vacuumizing joint under the action of the air pressure, so that the vacuumizing device can vacuumize the shell.

[0017] After the vacuumizing is completed, the air pressure in the shell can be lower than the external atmospheric pressure, and the sealing bead can block the air inlet end of the joint body again under the pressure of the elastic member, thereby avoiding the external air from entering and destroying the vacuum in the shell. In an alternative embodiment, the heat exchange container is a heat exchange pipe, and the side close to the heat exchange side of the heat exchange pipe is formed with a heat exchange plane, and the heat exchange plane is used for surface contact with the heat exchange side.

[0018] Beneficial effects: through such arrangement, the heat exchange plane can be used to increase the contact area between the shell and the heat exchange container, thereby ensuring that the heat exchange container can effectively transfer energy with the heat exchange side.

[0019] In an alternative embodiment, the cross section of the heat exchange pipe is a waist type, and the straight side of the waist type is connected to the heat exchange side.

[0020] Beneficial effects: By such arrangement, the dimension of the heat exchange tube along the thickness direction of the shell can be set smaller, and the side surface of the heat exchange tube away from the heat exchange side is also planar, which helps to increase the gap between the heat exchange tube and the side surface of the shell away from the heat exchange side, thereby avoiding heat exchange between the side surface of the shell away from the heat exchange side and the heat exchange tube without setting the thickness of the shell larger.

[0021] In an alternative embodiment, the heat exchange tube comprises a first tube segment, a second tube segment and a third tube segment arranged in sequence and connected to each other, the two ends of the heat exchange tube are connected to the first tube segment and the second tube segment respectively, and the third tube segment is connected to the second tube segment away from the second tube segment.

[0022] Beneficial effects: In the use of the heat exchange device of the embodiment of the present application, low-temperature heat exchange medium can be input at the input end of the heat exchange tube, and the heat exchange medium can absorb heat from the heat exchange side during the flow in the heat exchange tube. When the heat exchange medium reaches the output end of the heat exchange tube, the temperature of the heat exchange medium will rise due to heat absorption, and even part of it will become gaseous.

[0023] In an alternative embodiment, the third tube segment bypasses the outer periphery of the second tube segment and connects the first tube segment.

[0024] Beneficial effects: In the use of the heat exchange device of the embodiment of the present application, low-temperature heat exchange medium can be input at the input end of the heat exchange tube, and the heat exchange medium can absorb heat from the heat exchange side during the flow in the heat exchange tube. When the heat exchange medium reaches the output end of the heat exchange tube, the temperature of the heat exchange medium will rise due to heat absorption, and even part of it will become gaseous.

[0025] The heat exchange device of the embodiment of the present application sets the heat exchange tube to comprise a first tube segment, a second tube segment and a third tube segment, the first tube segment and the second tube segment are connected to the input end and the output end of the heat exchange tube respectively, and the third tube segment is arranged at the end of the second tube segment away from the first tube segment. By such arrangement, the input end and the output end of the heat exchange tube can be set closer, thereby making the temperature of the heat exchange side of the heat exchange device more uniform.

[0026] In an alternative embodiment, the size of the gap is d1, the distance between the first side of the heat exchange container and the second side is d2, and d1≥0.4d2.

[0027] Beneficial effects: When the distance between the heat exchange container and the side of the shell away from the heat exchange side is within the above range, the loss of cold energy of the heat exchange medium can be effectively avoided, thereby reducing the cold energy loss of the heat exchange medium.

[0028] In an alternative embodiment, the shell comprises:

[0029] An ice grid having at least one ice making groove formed thereon, and the heat exchange side is formed on the side of the ice grid away from the ice making groove.

[0030] A back cover is arranged on the ice tray and is located on the side of the ice tray away from the ice making groove, and the heat exchange container is arranged between the ice tray and the back cover.

[0031] Beneficial effects: through the arrangement, in the assembly process of the heat exchange device, the heat exchange container can be connected to the heat exchange surface first, and then the back cover is arranged on the ice tray, in this process, the input end and the output end of the heat exchange container can pass through the inlet and outlet on the back cover, and then the space between the back cover and the ice tray is vacuumized, so that the assembly of the heat exchange device is completed, and the assembly process is simple and convenient.

[0032] In an alternative embodiment, the lower wall of the ice making groove is inclined downward in a direction away from the back cover.

[0033] Beneficial effects: through the arrangement, when the ice is removed, the ice blocks can be automatically removed from the ice making groove under the action of gravity, and the ice blocks can be promoted to fall off.

[0034] In an alternative embodiment, a communication hole is formed between two adjacent ice making grooves on the ice tray.

[0035] In a second aspect, the present application also provides an ice maker, comprising:

[0036] The heat exchange device of the first aspect of the present application;

[0037] A compressor, the output end of the heat exchange device is connected to the input end of the compressor;

[0038] A condenser, the output end of the compressor is connected to the condenser, and the output end of the condenser is connected to the input end of the heat exchange device.

[0039] Beneficial effects: the ice maker of the second aspect of the present application comprises or uses the heat exchange device of the first aspect of the present application, so it has the beneficial effects of the heat exchange device, that is, it can overcome the defect of large energy loss of the heat exchange device in the related art, can improve the heat exchange efficiency of the heat exchange device, and helps to reduce the energy consumption of the heat exchange device. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0041] Figure 1 It is a perspective view of a heat exchange device of an embodiment of the present application;

[0042] Figure 2 It is a perspective view of a heat exchange device of an embodiment of the present application; Figure 1An exploded view of the heat exchange device shown;

[0043] Figure 3 A sectional view of a heat exchange device according to an embodiment of the present application;

[0044] Figure 4 A sectional view of a heat exchange device according to an embodiment of the present application; Figure 3 An enlarged view of a portion A in the heat exchange device shown;

[0045] Figure 5 An enlarged view of a portion B in the heat exchange device shown; Figure 3 An enlarged view of a portion B in the heat exchange device shown;

[0046] Figure 6 A perspective view of a heat exchange container of a heat exchange device according to an embodiment of the present application;

[0047] Figure 7 A perspective view of an ice tray of a heat exchange device according to an embodiment of the present application;

[0048] Figure 8 An enlarged view of a portion C in the ice tray shown; Figure 7 An enlarged view of a portion C in the ice tray shown;

[0049] Figure 9 A rear cover of a heat exchange device according to an embodiment of the present application.

[0050] BRIEF DESCRIPTION OF THE DRAWINGS

[0051] 1. a housing;

[0052] 101. an ice tray; 1011. an ice making groove; 1012. a heat exchange side; 1013. a communication hole;

[0053] 102. a rear cover; 1021. a vacuumizing structure; 10211. a joint main body; 10212. a sealing bead; 10213. an elastic member; 10214. a sealing ring;

[0054] 1022. a first avoiding opening; 1023. a second avoiding opening;

[0055] 2. a heat exchange container; 201. a first pipe section; 2011. a first straight section; 2012. a second straight section; 2013. a first bending section;

[0056] 202. a second pipe section; 2021. a third straight section; 2022. a fourth straight section; 2023. a second bending section;

[0057] 203. a third pipe section; 2031. a fifth straight section; 2032. a sixth straight section; 2033. a third bending section;

[0058] 204. a heat exchange plane;

[0059] 205, connecting section; 2051, seventh straight section; 2052, eighth straight section; 2053, ninth straight section; 2054, fourth bending section; 2055, fifth bending section; 2056, sixth bending section; 2057, seventh bending section;

[0060] 206, eighth bending section. DETAILED DESCRIPTION

[0061] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0062] The embodiments of the present application are described below with reference to the drawings. Figures 1 to 9

[0063] According to the embodiments of the present application, in one aspect, a heat exchange device is provided, comprising a shell 1 and a heat exchange container 2.

[0064] The shell 1 is provided with a heat exchange side 1012 and a vacuum extraction structure 1021, the heat exchange side 1012 is used to connect the article to be exchanged, and the vacuum extraction structure 1021 is used to connect the vacuum extraction device. The heat exchange container 2 is at least partially arranged in the shell 1 and is used to contain the heat exchange medium. The heat exchange container 2 has an input end and an output end, and has a first side and a second side arranged oppositely. The first side is at least partially in contact with the heat exchange side 1012 of the shell 1, and the second side forms a gap with the corresponding inner surface of the shell 1.

[0065] The shell 1 of the heat exchange device of the present application is provided with the vacuum extraction structure 1021, which can be used to connect the vacuum extraction device, so that the shell 1 is vacuumized by the vacuum extraction device. Therefore, in the use process of the heat exchange device of the present application, the shell 1 can be in a vacuum state, and the first side of the heat exchange container 2 can be in contact with the heat exchange side 1012 for heat exchange.

[0066] In addition, since the second side of the heat exchange container is in a vacuum environment and forms a gap with the shell 1, the side of the heat exchange container away from the heat exchange side 1012 can avoid heat exchange with the external environment, the energy consumption is avoided, the cold or heat of the heat exchange medium can be concentrated on the heat exchange side 1012, and the heat exchange efficiency of the heat exchange device can be improved.

[0067] ​On this basis, since the heat exchange device of the embodiment of the present application only exchanges heat with the heat exchange side 1012, the heat or cold energy thereof cannot be fully utilized, and the remaining heat or cold energy returns to the refrigeration cycle system, thereby reducing the load of the compressor, so as to reduce the energy consumption.

[0068] Therefore, the heat exchange device of the embodiment of the present application can overcome the defect of large energy loss of the heat exchange device in the related art, can improve the heat exchange efficiency of the heat exchange device, and is helpful to reduce the energy consumption of the heat exchange device.

[0069] It should be noted that the heat exchange device of the present application can be an evaporator for achieving a refrigeration effect, or can be configured as a condenser for achieving a heating effect.

[0070] In order to facilitate the description effect, the embodiment for achieving a refrigeration effect is exemplified in the following description, but the implementation of the heat exchange device of the present application is not limited thereto.

[0071] In one embodiment, as shown in Figure 3 and Figure 4 , the surface of the shell 1 except the heat exchange side 1012 forms a gap with the heat exchange container 2, thereby further avoiding the temperature of the heat exchange medium in the heat exchange container 2 from being affected by the external environment.

[0072] As a changeable implementation, in an embodiment not shown in the figure, the heat exchange container 2 abuts at the edge of the shell 1, but the contact area is small, which does not cause large energy loss.

[0073] In one embodiment, the heat exchange container 2 is a heat exchange pipe, and the side close to the heat exchange side 1012 of the heat exchange pipe forms a heat exchange plane 204, which is used for surface contact with the heat exchange side 1012.

[0074] By such arrangement, the heat exchange plane 204 can be used to increase the contact area between the shell 1 and the heat exchange container 2, thereby ensuring that the heat exchange container 2 can effectively transfer energy with the heat exchange side 1012.

[0075] As a changeable implementation, the heat exchange container 2 is a circular ring, and the heat exchange side 1012 forms an arc-shaped groove capable of surface contact with the circular pipe.

[0076] As another changeable implementation, the heat exchange container 2 includes a liquid storage bag.

[0077] As shown in Figure 4 , the vacuumizing structure 1021 is preferably but not limited to a vacuumizing joint.

[0078] In one embodiment, the shell 1 is provided with a vacuumizing through hole, and the vacuumizing structure 1021 comprises a joint body 10211, a sealing bead 10212 and an elastic member 10213. The joint body 10211 is arranged in the vacuumizing through hole, and the inner periphery of the joint body 10211 is provided with a first annular protrusion and a second annular protrusion arranged at intervals. The sealing bead 10212 is movably arranged in the joint body 10211 and located between the first annular protrusion and the second annular protrusion, and can block the air inlet end of the joint body 10211 when abutting against the first annular protrusion. The elastic member 10213 is supported between the sealing bead 10212 and the second annular protrusion.

[0079] By such arrangement, the vacuumizing device can be connected to the air outlet end of the joint body 10211 and vacuumize the gap between the sealing bead 10212 and the second annular protrusion. When the air pressure at the air inlet end of the joint body 10211 is greater than the air pressure at the air outlet end, the sealing bead 10212 can compress the elastic member 10213 under the action of the air pressure and expose the air inlet end of the vacuumizing joint, so that the vacuumizing device can vacuumize the shell 1.

[0080] After the vacuumizing is completed, the air pressure in the shell 1 can be lower than the external atmospheric pressure, and the sealing bead 10212 can block the air inlet end of the joint body 10211 again under the pressure of the elastic member 10213, thereby avoiding the external air from entering and destroying the vacuum in the shell 1.

[0081] In one embodiment, the air inlet end of the joint body 10211 is provided with a sealing ring 10214, and the sealing bead 10212 can be in interference fit with the sealing ring 10214 under the action of the elastic member 10213, thereby improving the air tightness of the shell 1.

[0082] In one embodiment, the cross section of the heat exchange pipe is a waist type, and the straight side of the waist type is connected to the heat exchange side 1012.

[0083] By such arrangement, the size of the heat exchange pipe in the thickness direction of the shell 1 can be set smaller, and the side surface of the heat exchange pipe away from the heat exchange side 1012 is also planar, which helps to increase the gap between the heat exchange pipe and the side surface of the shell 1 away from the heat exchange side 1012, thereby avoiding heat exchange between the side surface of the shell 1 away from the heat exchange side 1012 and the heat exchange pipe without the thickness of the shell 1 being set larger.

[0084] In one embodiment, the heat exchange pipe is integrally flattened to form the heat exchange plane 204 before being loaded into the shell 1.

[0085] As a convertible embodiment, the heat exchange plane 204 can also be formed on the heat exchange pipe by machining processes such as cutting.

[0086] In one embodiment, asFigure 1 As shown, the heat exchange tube comprises the first tube segment 201, the second tube segment 202 and the third tube segment 203 arranged in sequence and connected with each other, two ends of the heat exchange tube are connected to the first tube segment 201 and the second tube segment 202 respectively, and the third tube segment 203 is connected to the second tube segment 202 away from the second tube segment 202.

[0087] In the use process of the heat exchange device, the low-temperature heat exchange medium can be input at the input end of the heat exchange tube, and the heat exchange medium can absorb heat from the heat exchange side 1012 in the process of flowing in the heat exchange tube. When the heat exchange medium reaches the output end of the heat exchange tube, the temperature of the heat exchange medium will rise due to heat absorption, and even part of it will become gaseous.

[0088] The heat exchange device sets the heat exchange tube to comprise the first tube segment 201, the second tube segment 202 and the third tube segment 203, the first tube segment 201 and the second tube segment 202 are connected to the input end and the output end of the heat exchange tube respectively, and the third tube segment 203 is arranged at the end of the second tube segment 202 away from the first tube segment 201. By such arrangement, the input end and the output end of the heat exchange tube can be arranged relatively close, thereby making the temperature of the heat exchange side 1012 of the heat exchange device more uniform.

[0089] As a transformable embodiment, in an embodiment not shown in the figure, the heat exchange tube is a serpentine tube wheel, and the input end and the output end of the heat exchange tube are respectively located at the two ends of the shell 1.

[0090] As another transformable embodiment, in an embodiment not shown in the figure, heat exchange fins are arranged between the heat exchange tube and the heat exchange side 1012 of the shell 1, the heat exchange fins can promote the uniform release of cold energy in the heat exchange container to the heat exchange side 1012, thereby making the temperature distribution of the heat exchange side 1012 more uniform.

[0091] In an embodiment, as shown in the figure, Figure 1 The third tube segment 203 bypasses the outer periphery of the second tube segment 202 and connects the first tube segment 201.

[0092] In an embodiment, as shown in the figure, Figure 6 The first tube segment 201 can be selected to comprise the first straight segment 2011, the second straight segment 2012 arranged side by side, and the first bending segment 2013 connected between the first straight segment 2011 and the second straight segment 2012.

[0093] The second tube segment 202 comprises the third straight segment 2021 and the fourth straight segment 2022 arranged side by side, and the second bending segment 2023 connected between the third straight segment 2021 and the fourth straight segment 2022.

[0094] The third pipe section 203 includes a fifth straight section 2031 and a sixth straight section 2032 arranged in parallel, and a third bend section 2033 connected between the fifth straight section 2031 and the sixth straight section 2032.

[0095] The second straight segment 2012 is connected to the sixth straight segment 2032 via a connecting segment 205, which includes the seventh straight segment 2051, the eighth straight segment 2052, the ninth straight segment 2053, the fourth bent segment 2054, the fifth bent segment 2055, the sixth bent segment 2056, and the seventh bent segment 2057.

[0096] The seventh straight segment 2051 is located between the second straight segment 2012 and the third straight segment 2021. One end of the seventh straight segment 2051 is connected to the second straight segment 2012 through the fourth bent segment 2054. The eighth straight segment 2052 is located on the side of the sixth straight segment 2032 away from the fifth straight segment 2031 and is connected to the fifth straight segment 2031 through the fifth bent segment 2055. The two ends of the ninth straight segment 2053 are connected to the seventh straight segment 2051 and the eighth straight segment 2052 through the sixth bent segment 2056 and the seventh bent segment 2057, respectively.

[0097] One of the input and output ends of the heat exchange tube is connected to the end of the first straight section 2011 away from the first bend section 2013, and the other of the input and output ends of the heat exchange tube is connected to the end of the third straight section 2021 away from the second bend section 2023.

[0098] The fourth straight section 2022 connects to the fifth straight section 2031 via the eighth bend section 206.

[0099] With this arrangement, the heat exchange tubes can be evenly distributed on the heat exchange side 1012 after multiple bends, which not only increases the contact area between the heat exchange tubes and the heat exchange side 1012, but also helps to improve the temperature uniformity of the heat exchange side 1012.

[0100] In one embodiment, the back cover 102 is provided with a first clearance opening 1022 and a second clearance opening 1023. The first clearance opening 1022 is located in the middle of one side edge of the back cover 102, and the second clearance opening 1023 is located on the same side edge of the back cover 102 as the first clearance opening 1022 and at the bottom.

[0101] like Figure 9 As shown, the first clearance port 1022 and the second clearance port 1023 can respectively allow the inlet and outlet ends of the heat exchange tube to pass through.

[0102] In one embodiment, the first clearance opening 1022 allows the inlet end of the heat exchange tube to pass through, and the second clearance opening 1023 allows the outlet end of the heat exchange tube to pass through.

[0103] As an alternative implementation, the first avoiding opening 1022 can also be selected to pass through the output end of the heat exchange pipe, and the second avoiding opening 1023 can be selected to pass through the input end of the heat exchange pipe.

[0104] In one embodiment, the size of the gap is d1, the distance between the first side of the heat exchange container 2 and the second side is d2, and d1≥0.4d2. When the distance between the heat exchange container 2 and the side of the shell 1 away from the heat exchange side 1012 is within the above range, the loss of cold energy of the heat exchange medium can be effectively avoided, thereby reducing the loss of cold energy of the heat exchange medium.

[0105] In a preferred embodiment, the gap is 2mm, which can ensure that the loss of cold energy of the heat exchange medium is avoided without increasing the thickness of the shell 1, so that the structure of the heat exchange device is more compact, which helps to reduce the space occupied by the heat exchange device.

[0106] In one embodiment, the shell 1 includes an ice grid 101 and a back cover 102.

[0107] The ice grid 101 is formed with at least one ice making groove 1011, and the heat exchange side 1012 is formed on the side of the ice grid 101 away from the ice making groove 1011. The back cover 102 is arranged on the ice grid 101 and located on the side of the ice grid 101 away from the ice making groove 1011, and the heat exchange container 2 is arranged between the ice grid 101 and the back cover 102.

[0108] In this way, during assembly of the heat exchange device, the heat exchange container 2 can be first connected to the heat exchange side, and then the back cover 102 is arranged on the ice grid 101. During this process, the input end and the output end of the heat exchange container 2 can pass through the inlet and outlet of the back cover 102, and then the space between the back cover 102 and the ice grid 101 is vacuumized, thereby completing the assembly of the heat exchange device, which is simple and convenient.

[0109] As an alternative implementation, the shell 1 can also be selected to include a bottom shell and a cover body, the ice grid 101 is formed on the cover body, and the cover body is formed with an inlet and an outlet on the side away from the ice grid 101. An operator can first place the heat exchange container 2 into the cover body, and then arrange the bottom shell on the bottom of the cover body to prevent the heat exchange container 2 from falling out of the cover body.

[0110] In one embodiment, as shown in Figure 5 and Figure 7 the lower wall of the ice making groove 1011 is inclined downward in the direction away from the back cover 102.

[0111] In this way, during ice removal, the ice blocks can be automatically removed from the ice making groove 1011 under the action of gravity, which can facilitate the removal of the ice blocks.

[0112] As an alternative embodiment, in an embodiment not shown in the drawings, the lower wall of the ice-making groove 1011 can also be flat.

[0113] In one embodiment, as shown in Figure 5 and Figure 8 A communication hole 1013 is formed between two adjacent ice-making grooves 1011 in the ice tray 101.

[0114] By so doing, the water in the ice-making grooves 1011 can flow into each other, thereby facilitating the water to be evenly distributed in the ice tray 101.

[0115] In a preferred embodiment, the communication hole is arranged at the bottom of the ice-making groove 1011.

[0116] As an alternative embodiment, the communication hole can also be arranged at the middle of the ice-making groove 1011.

[0117] Next, the assembly process of the heat exchange device of the embodiment of the present application is described:

[0118] First, the heat exchange tube is flattened to form a heat exchange plane 204, the heat exchange plane 204 of the heat exchange tube is welded to the heat exchange side 1012 of the ice tray 101, then the input end and the output end of the heat exchange tube are respectively inserted through the first avoiding port 1022 and the second avoiding port 1023 of the heat exchange tube, the back cover 102 is arranged on the ice tray 101, and the back cover 102 is welded and connected with the ice tray 101, so as to maintain the sealed connection between the back cover 102 and the ice tray 101, and the vacuum structure 1021 is vacuumized, thereby forming a vacuum cavity.

[0119] According to the embodiment of the present application, on the other hand, a ice maker is also provided, which comprises the heat exchange device provided by the first aspect of the present application.

[0120] The ice maker of the second aspect of the present application comprises or uses the heat exchange device of the first aspect of the present application, and therefore has the beneficial effects thereof, i.e. can overcome the defect of large energy loss of the heat exchange device in the related art, can improve the heat exchange efficiency of the heat exchange device, and is helpful to reduce the energy consumption of the heat exchange device.

[0121] Next, the working process of the ice maker of the second aspect of the present application is described:

[0122] The ice maker of the embodiment of the present application, when making ice, the heat exchange medium is compressed into high-temperature and high-pressure gas by the compressor, cooled by the condenser, and changed into medium-temperature and high-pressure liquid, then throttled by the throttling device to form low-temperature and low-pressure heat exchange medium, and flows into the input end of the heat exchange container 2, the low-temperature and low-pressure heat exchange medium transmits cold energy to the ice cube tray 101 through the heat exchange plane 204 of the heat exchange pipe, and since the side of the heat exchange pipe far from the ice cube tray 101 is in a vacuum environment, it cannot absorb heat from the external environment, so that the cold energy of the heat exchange medium is more concentrated on the heat exchange side 1012, thereby promoting the ice cube tray 101 to rapidly cool down, thereby improving the ice making efficiency of the ice maker.

[0123] In addition, the ice maker of the embodiment of the present application reduces the loss of cold energy, ensures that the cold energy of the heat exchange medium cannot be fully utilized, and part of the cold energy returns to the refrigeration cycle system, thereby reducing the load of the compressor and achieving energy saving.

[0124] When the ice is removed, the heat exchange medium is directly introduced into the heat exchange container 2 after being compressed into high-temperature and high-pressure gas in the compressor, and the high-temperature and high-pressure heat exchange medium can transmit heat to the ice cube tray 101 through the heat exchange plane 204 of the heat exchange pipe, and since the side of the heat exchange pipe far from the ice cube tray 101 is in a vacuum environment, it cannot radiate heat to the external environment, so that the heat in the heat exchange medium can be concentrated on the side in contact with the ice cube tray 101, thereby improving the heating speed of the ice cube tray 101, helping to shorten the ice removal time, improving the ice removal efficiency, and reducing the working time of the high-temperature load compressor, thereby achieving energy saving.

[0125] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A heat exchange device, characterized by, The application relates to a heat exchange device, which comprises: a shell (1) provided with a heat exchange side (1012) and a vacuumizing structure (1021), the heat exchange side (1012) being used for connecting an article to be heat exchanged, and the vacuumizing structure (1021) being used for connecting a vacuumizing device; a heat exchange container (2) arranged at least partially in the shell (1) and used for containing a heat exchange medium, the heat exchange container (2) being provided with an input end and an output end, and the heat exchange container (2) being provided with a first side and a second side arranged oppositely, the first side being at least partially in contact with the heat exchange side (1012) of the shell (1), and the second side being spaced apart from an inner surface of the shell (1) to form a gap, the gap has a size d1, and a distance between the first side and the second side of the heat exchange container (2) is d2, and d1>=0.4d2.

2. The heat exchange device according to claim 1, wherein The shell (1) is provided with a vacuumizing through hole, and the vacuumizing structure (1021) comprises: a joint body (10211) arranged in the vacuumizing through hole, the joint body (10211) being sequentially provided with a first annular protrusion and a second annular protrusion in an air outlet direction; a sealing bead (10212) movably arranged in the joint body (10211) and located between the first annular protrusion and the second annular protrusion, and capable of blocking an air inlet end of the joint body (10211) when abutting against the first annular protrusion; and an elastic member (10213) supported between the sealing bead (10212) and the second annular protrusion and capable of applying a force to the sealing bead (10212) in a direction of the first annular protrusion.

3. The heat exchange device according to claim 1 or 2, characterized in that The heat exchange container (2) is a heat exchange pipe, and the heat exchange pipe is provided with a heat exchange plane (204) on a side close to the heat exchange side (1012), and the heat exchange plane (204) is used for surface contact with the heat exchange side (1012).

4. The heat exchange device according to claim 3, wherein The heat exchange pipe has a waist-shaped cross section, and a straight side of the waist-shaped cross section is connected to the heat exchange side (1012).

5. The heat exchange device according to claim 3, wherein The heat exchange pipe comprises a first pipe segment (201), a second pipe segment (202) and a third pipe segment (203) arranged sequentially and connected to each other, two ends of the heat exchange pipe are connected to the first pipe segment (201) and the second pipe segment (202) respectively, and the third pipe segment (203) is connected to a side of the second pipe segment (202) away from the first pipe segment (201).

6. The heat exchange device according to claim 5, wherein The third pipe segment (203) bypasses an outer periphery of the second pipe segment (202) and connects the first pipe segment (201).

7. The heat exchange device according to claim 1 or 2, wherein The shell (1) comprises: an ice grid (101) provided with at least one ice making groove (1011), and the heat exchange side (1012) being formed on a side of the ice grid (101) away from the ice making groove (1011); a back cover (102) arranged on the ice grid (101) and located on a side of the ice grid (101) away from the ice making groove (1011), and the heat exchange container (2) being arranged between the ice grid (101) and the back cover (102).

8. The heat exchange device according to claim 7, wherein In a direction away from the back cover (102), a lower wall of the ice making groove (1011) is inclined downward.

9. The heat exchange device according to claim 7, wherein The ice tray (101) is provided with a communication hole (1013) between two adjacent ice making grooves (1011).

10. An ice maker characterized by, Comprise: The heat exchange device of any one of claims 1-9; A compressor, wherein an output end of the heat exchange device is connected to an input end of the compressor; A condenser, wherein an output end of the compressor is connected to the condenser, and an output end of the condenser is connected to an input end of the heat exchange device.

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