Heat exchange device and ice maker

Abstract

The invention relates to the technical field of household appliances, and discloses a heat exchange device and an ice maker, the heat exchange device comprises a shell, a heat exchange side and a vacuumizing structure are formed on the shell, the heat exchange side is used for being connected with an object to be subjected to heat exchange, and the vacuumizing structure is used for being connected with a vacuumizing device; at least part of the heat exchange container is arranged in the shell and used for containing a heat exchange medium, the heat exchange container is provided with an input end and an output end, the heat exchange container is provided with a first side and a second side which are oppositely arranged, at least part of the first side makes contact with the heat exchange side of the shell, and a gap is formed between the second side and the corresponding inner surface of the shell. According to the heat exchange device, the defect that heat exchange devices in related technologies are large in energy loss can be overcome, the heat exchange efficiency of the heat exchange device can be improved, and reduction of energy consumption of the heat exchange device is facilitated.

Description

Technical Field

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

[0002] A heat exchanger, also known as a heat exchanger, is a device that transfers heat between different media. A heat exchanger enables heat to be transferred 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, which is used to connect the ice tray. The heat exchange container is arranged in the shell to accommodate a heat exchange medium, so as to exchange heat with the water in the ice tray. The remaining surfaces of the heat exchange container except the heat exchanger are pasted with sponges for insulation. However, this cannot effectively avoid the interference of environmental heat, and there is still the problem of large energy loss of the heat exchanger, which is not conducive to improving the heat exchange efficiency of the heat exchanger. Summary of the invention

[0004] In view of this, the present invention provides a heat exchange device and an ice maker to solve the defects 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 invention provides a heat exchange device, comprising:

[0006] A shell having a heat exchange side and a vacuum structure formed thereon, wherein the heat exchange side is used to connect to the object to be heat exchanged, and the vacuum structure is used to connect to the vacuum device;

[0007] The heat exchange container is at least partially disposed in the shell and is used to accommodate a 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 that are arranged opposite to each other. 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 effect: A vacuum structure is formed on the shell of the heat exchange device of the present invention, and the vacuum structure can be used to connect the vacuum device, so as to evacuate the inside of the shell through the vacuum device. Therefore, during use of the heat exchange device of the embodiment of the present application, the inside of the shell can be in a vacuum state, and the first side of the heat exchange container can perform contact heat exchange with the heat exchange side.

[0009] Furthermore, since the second side of the heat exchange container is in a vacuum environment and forms a gap with the shell, heat exchange between the second side of the heat exchange container and the external environment can be avoided, thereby avoiding energy consumption, ensuring that the cold or heat of the heat exchange medium can be concentrated on the heat exchange side, and 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, its heat or cold will not be fully utilized, and the remaining heat or cold will return to the refrigeration cycle system, causing the load of the compressor to be reduced, thereby achieving energy consumption reduction.

[0011] Therefore, the heat exchange device of the embodiment of the present invention 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 help reduce the energy consumption of the heat exchange device.

[0012] In an optional embodiment, a vacuum through hole is formed on the shell, and the vacuum structure includes:

[0013] A joint body is arranged in the vacuum through hole, and a first annular convex portion and a second annular convex portion are arranged in sequence in the joint body along the gas outlet direction;

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

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

[0016] Beneficial effect: Through such an arrangement, the vacuum device can be connected to the air outlet end of the joint body and vacuum the gap between the sealing bead and the second annular protrusion; when the air pressure at the air inlet end of the joint body is greater than the air pressure at the air outlet end, the sealing bead can compress the spring under the action of the air pressure and expose the air inlet end of the vacuum joint, thereby enabling the vacuum device to vacuum the inside of the shell.

[0017] After the vacuum is completed, the air pressure in the shell can be lower than the external atmospheric pressure, and the sealing bead can seal the air inlet end of the joint body again under the top pressure of the elastic member, thereby preventing the outside air from entering and destroying the vacuum in the shell. In an optional embodiment, the heat exchange container is a heat exchange tube, and a heat exchange plane is formed on the side close to the heat exchange side, and the heat exchange plane is used to make surface contact with the heat exchange side.

[0018] Beneficial effect: Through such an 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 optional embodiment, the cross-section of the heat exchange tube is waist-shaped, and a straight side of the waist-shaped tube is connected to the heat exchange side.

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

[0021] In an optional embodiment, the heat exchange tube includes 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 respectively connected to the first tube segment and the second tube segment, and the third tube segment is connected to the side of the second tube segment away from the second tube segment.

[0022] Beneficial effect: During use of the heat exchange device of the embodiment of the present application, a low-temperature heat exchange medium can be input at the input end of the heat exchange tube. 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 increase due to heat absorption, and even partially turn into a gaseous state.

[0023] In an optional embodiment, the third pipe segment bypasses the outer circumference of the second pipe segment and connects to the first pipe segment.

[0024] Beneficial effect: During use of the heat exchange device of the embodiment of the present application, a low-temperature heat exchange medium can be input at the input end of the heat exchange tube. 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 increase due to heat absorption, and even partially turn into a gaseous state.

[0025] The heat exchange device of the embodiment of the present application arranges the heat exchange tube to include a first tube segment, a second tube segment and a third tube segment. The first tube segment and the second tube segment are respectively connected to the input end and the output end of the heat exchange tube, and the third tube segment is arranged at an end of the second tube segment away from the first tube segment. Through such an arrangement, the input end and the output end of the heat exchange tube can be arranged relatively close, thereby making the temperature on the heat exchange side of the heat exchange device more uniform.

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

[0027] Beneficial effect: 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 coldness of the heat exchange medium can be effectively avoided, thereby reducing the loss of coldness of the heat exchange medium.

[0028] In an optional embodiment, the housing comprises:

[0029] An ice tray having at least one ice-making groove formed thereon, wherein a heat exchange side is formed on a side of the ice tray away from the ice-making groove;

[0030] The rear cover is arranged on the ice tray and is located at a side of the ice tray away from the ice making groove. The heat exchange container is arranged between the ice tray and the rear cover.

[0031] Beneficial effect: Through such an arrangement, during the assembly process of the heat exchange device, the heat exchange container can be first connected to the heat exchange surface, and then the back cover can be placed on the ice tray. In this process, the input and output ends 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 vacuumed to complete the assembly of the heat exchange device. The assembly process is simple and convenient.

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

[0033] Beneficial effect: Through such an arrangement, when ice is removed, the ice cubes can automatically fall out of the ice making groove under the action of gravity, which can promote the removal of ice cubes.

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

[0035] In a second aspect, the present invention further provides an ice making machine, comprising:

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

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

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

[0039] Beneficial effect: The ice making machine of the second aspect of the present invention includes or uses the heat exchange device of the first aspect of the present invention, and thus has its beneficial effect, namely, 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 help reduce the energy consumption of the heat exchange device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A three-dimensional diagram of a heat exchange device according to an embodiment of the present invention;

[0042] Figure 2 for Figure 1An exploded view of the heat exchange device shown;

[0043] Figure 3 is a cross-sectional view of a heat exchange device according to an embodiment of the present invention;

[0044] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0045] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0046] Figure 6 A three-dimensional diagram of a heat exchange container of a heat exchange device according to an embodiment of the present invention;

[0047] Figure 7 A three-dimensional diagram of an ice tray of a heat exchange device according to an embodiment of the present invention;

[0048] Figure 8 for Figure 7 The enlarged view of the ice tray at point C is shown;

[0049] Fig. 9 The invention discloses a rear cover of a heat exchange device according to an embodiment of the present invention.

[0050] Description of reference numerals:

[0051] 1. Shell;

[0052] 101, ice tray; 1011, ice making groove; 1012, heat exchange side; 1013, connecting hole;

[0053] 102, rear cover; 1021, vacuum pumping structure; 10211, joint body; 10212, sealing bead; 10213, elastic member; 10214, sealing ring;

[0054] 1022, first avoidance exit; 1023, second avoidance exit;

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

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

[0057] 203, the third pipe section; 2031, the fifth straight section; 2032, the sixth straight section; 2033, the third curved section;

[0058] 204, 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. The eighth bending section. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0062] Combine the following Figures 1 to 9 , describing an embodiment of the present invention.

[0063] According to an embodiment of the present invention, on one hand, a heat exchange device is provided, including a shell 1 and a heat exchange container 2.

[0064] The shell 1 is provided with a heat exchange side 1012 and a vacuum structure 1021. The heat exchange side 1012 is used to connect the object to be heat exchanged, and the vacuum structure 1021 is used to connect the vacuum device. The heat exchange container 2 is at least partially disposed in the shell 1, and is used to accommodate the heat exchange medium. The heat exchange container 2 has an input end and an output end. The heat exchange container 2 has a first side and a second side that are arranged opposite to each other. 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] A vacuum structure 1021 is formed on the shell 1 of the heat exchange device of the present invention. The vacuum structure 1021 can be used to connect a vacuum device, so that the shell 1 is evacuated by the vacuum device. Therefore, during use of the heat exchange device of the embodiment of the present application, the shell 1 can be in a vacuum state, and the first side of the heat exchange container 2 can perform contact heat exchange with the heat exchange side 1012.

[0066] Furthermore, since the second side of the heat exchange container is in a vacuum environment and forms a gap with the shell 1, it is possible to prevent the side of the heat exchange container away from the heat exchange side 1012 from exchanging heat with the external environment, thereby avoiding energy consumption, ensuring that the cold or heat of the heat exchange medium can be concentrated on the heat exchange side 1012, and improving the heat exchange efficiency of the heat exchange device.

[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, its heat or cold will not be fully utilized, and the remaining heat or cold will return to the refrigeration cycle system, causing the load of the compressor to be reduced, thereby achieving energy consumption reduction.

[0068] Therefore, the heat exchange device of the embodiment of the present invention 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 help 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 cooling effect, or can be configured as a condenser for heating effect.

[0070] In order to facilitate the description of the effect, an embodiment having a cooling effect is cited below for description, but the implementation of the heat exchange device of the present application is not limited thereto.

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

[0072] As a convertible implementation, in an embodiment not shown in the drawings, the heat exchange container 2 abuts against the edge of the shell 1, but the contact area is small and will not cause a large energy loss.

[0073] In one embodiment, the heat exchange container 2 is a heat exchange tube, and a heat exchange plane 204 is formed on the 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 .

[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 convertible embodiment, the heat exchange container 2 is a circular ring, and an arc groove capable of surface contact with the circular tube is formed on the heat exchange side 1012 .

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

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

[0078] In one embodiment, a vacuum through hole is formed on the housing 1, and the vacuum structure 1021 includes a joint body 10211, a sealing bead 10212, and an elastic member 10213. The joint body 10211 is arranged in the vacuum through hole, and the inner circumference of the joint body 10211 is formed with a first annular convex portion and a second annular convex portion arranged at intervals. The sealing bead 10212 is movably arranged in the joint body 10211 and is located between the first annular convex portion and the second annular convex portion, and can block the air inlet end of the joint body 10211 when it abuts against the first annular convex portion. The elastic member 10213 is supported between the sealing bead 10212 and the second annular convex portion.

[0079] Through such an arrangement, the vacuum extraction device can be connected to the air outlet end of the joint body 10211, and vacuum 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 part 10213 under the action of the air pressure and expose the air inlet end of the vacuum extraction joint, thereby enabling the vacuum extraction device to vacuum the inside of the shell 1.

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

[0081] In one embodiment, a sealing ring 10214 is provided at the air inlet end of the joint body 10211 , and the sealing bead 10212 can be 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 tube is waist-shaped, and a straight side of the waist-shaped tube is connected to the heat exchange side 1012 .

[0083] By such an arrangement, the dimension of the heat exchange tube along the thickness direction of the shell 1 can be set smaller, and the surface of the heat exchange tube away from the heat exchange side 1012 is also flat, which helps to increase the gap between the heat exchange tube and the surface of the shell 1 away from the heat exchange side 1012, thereby avoiding heat exchange between the surface of the shell 1 away from the heat exchange side 1012 and the heat exchange tube without setting the thickness of the shell 1 larger.

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

[0085] As a convertible implementation, the heat exchange plane 204 may also be formed on the heat exchange tube by a processing technique such as cutting.

[0086] In one embodiment, Figure 1 As shown, the heat exchange tube includes a first tube segment 201, a second tube segment 202 and a third tube segment 203 which are arranged in sequence and connected to each other. Both ends of the heat exchange tube are respectively connected to the first tube segment 201 and the second tube segment 202, and the third tube segment 203 is connected to a side of the second tube segment 202 away from the second tube segment 202.

[0087] During use of the heat exchange device of the embodiment of the present application, a low-temperature heat exchange medium can be input at the input end of the heat exchange tube. The heat exchange medium can absorb heat from the heat exchange side 1012 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 increase due to the absorption of heat, and even partially turn into a gaseous state.

[0088] The heat exchange device of the embodiment of the present application arranges the heat exchange tube to include a first tube segment 201, a second tube segment 202 and a third tube segment 203. The first tube segment 201 and the second tube segment 202 are respectively connected to the input end and the output end of the heat exchange tube. The third tube segment 203 is arranged at an end of the second tube segment 202 away from the first tube segment 201. Through such an 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 convertible implementation, in an embodiment not shown in the drawings, 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 convertible implementation, in an embodiment not shown in the accompanying drawings, heat exchange fins are sandwiched between the heat exchange tubes and the heat exchange side 1012 of the shell 1. The heat exchange fins can promote the uniform release of cold 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 one embodiment, Figure 1 As shown, the third pipe segment 203 bypasses the outer circumference of the second pipe segment 202 and connects to the first pipe segment 201 .

[0092] In one embodiment, Figure 6 As shown, the first pipe section 201 may optionally include a first straight section 2011 and a second straight section 2012 arranged in parallel, and a first bent section 2013 connected between the first straight section 2011 and the second straight section 2012;

[0093] The second pipe section 202 includes a third straight section 2021 and a fourth straight section 2022 arranged in parallel, and a second bent section 2023 connected between the third straight section 2021 and the fourth straight section 2022;

[0094] The third tube segment 203 includes a fifth straight segment 2031 and a sixth straight segment 2032 which are arranged in parallel, and a third bent segment 2033 connected between the fifth straight segment 2031 and the sixth straight segment 2032 .

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

[0096] The seventh straight segment 2051 is arranged between the second straight segment 2012 and the third straight segment 2021, and one end of the seventh straight segment 2051 is connected to the second straight segment 2012 via the fourth bending segment 2054. The eighth straight segment 2052 is arranged 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 via the fifth bending 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 via the sixth bending segment 2056 and the seventh bending segment 2057 respectively.

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

[0098] The fourth straight segment 2022 is connected to the fifth straight segment 2031 via the eighth bending segment 206 .

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

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

[0101] like Fig. 9 As shown, the first avoidance opening 1022 and the second avoidance opening 1023 can allow the input end and the output end of the heat exchange tube to pass through respectively.

[0102] In one embodiment, the first avoidance opening 1022 can allow the input end of the heat exchange tube to pass through, and the second avoidance opening 1023 can allow the output end of the heat exchange tube to pass through.

[0103] As a convertible implementation, the first avoidance opening 1022 may be selected to allow the output end of the heat exchange tube to pass through, and the second avoidance opening 1023 may be selected to allow the input end of the heat exchange tube to pass through.

[0104] In one embodiment, the size of the gap is d1, the distance between the first surface and the second side of the heat exchange container 2 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 coldness of the heat exchange medium can be effectively avoided, thereby reducing the loss of coldness of the heat exchange medium.

[0105] In a preferred embodiment, the gap is 2 mm, which can ensure that the coldness of the heat exchange medium is not lost without increasing the thickness of the shell 1, making the structure of the heat exchange device more compact and helping to reduce the space required for the heat exchange device.

[0106] In one embodiment, the housing 1 includes an ice tray 101 and a rear cover 102 .

[0107] At least one ice making groove 1011 is formed on the ice tray 101, and a heat exchange side 1012 is formed on a side of the ice tray 101 away from the ice making groove 1011. The rear cover 102 is disposed on the ice tray 101 and is located on a side of the ice tray 101 away from the ice making groove 1011, and the heat exchange container 2 is disposed between the ice tray 101 and the rear cover 102.

[0108] With such an arrangement, during the assembly of the heat exchange device, the heat exchange container 2 can be first connected to the heat exchange surface, and then the rear cover 102 can be placed on the ice tray 101. During this process, the input and output ends of the heat exchange container 2 can pass through the inlet and outlet on the rear cover 102, and then the space between the rear cover 102 and the ice tray 101 is evacuated to complete the assembly of the heat exchange device. The assembly process is simple and convenient.

[0109] As a convertible embodiment, the shell 1 can also be optionally configured to include a bottom shell and a cover body, the ice tray 101 is formed on the cover body, and an inlet and an outlet are formed on the side of the cover body away from the ice tray 101. The operator can first place the heat exchange container 2 into the cover body, and then place the bottom shell cover on the bottom of the cover body to prevent the heat exchange container 2 from escaping from the cover body.

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

[0111] By such arrangement, when ice is removed, the ice cubes can automatically fall out of the ice making groove 1011 under the action of gravity, which can promote the removal of ice cubes.

[0112] As a convertible implementation, in an embodiment not shown in the drawings, the lower wall of the ice making groove 1011 can also be selected to be a plane.

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

[0114] By such arrangement, the water in the ice making grooves 1011 can circulate with each other, thereby facilitating the water to be evenly distributed to each ice making groove 1011 in the ice tray 101 .

[0115] In a preferred embodiment, the flow hole is disposed at the bottom of the ice making groove 1011 .

[0116] As a convertible implementation, the circulation hole may also be optionally disposed in the middle of the ice making groove 1011 .

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

[0118] First, the heat exchange tube is flattened to form a heat exchange plane 204, and 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 passed through the first avoidance port 1022 and the second avoidance port 1023 of the heat exchange tube, and the back cover 102 is placed on the ice tray 101. The back cover 102 and the ice tray 101 are welded to maintain a sealed connection between the back cover 102 and the ice tray 101, and the vacuum structure 1021 is evacuated to form a vacuum cavity.

[0119] According to an embodiment of the present invention, on the other hand, an ice-making machine is provided, comprising the heat exchange device provided by the first aspect of the present invention.

[0120] The ice making machine of the second aspect of the present invention includes or uses the heat exchange device of the first aspect of the present invention, and thus has its beneficial effects, namely, 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 help reduce the energy consumption of the heat exchange device.

[0121] Next, the working process of the ice making machine of the second aspect of the present invention is described:

[0122] When the ice-making machine of the embodiment of the present invention makes ice, the heat exchange medium is compressed into a high-temperature and high-pressure gas by the compressor, and then cooled by the condenser to become a medium-temperature and high-pressure liquid. It is then throttled by the throttling device to form a 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 transfers the cold energy to the ice grid 101 through the heat exchange plane 204 of the heat exchange tube. Since the side of the heat exchange tube away from the ice grid 101 is in a vacuum environment, it cannot absorb heat from the external environment, ensuring that the cold energy of the heat exchange medium is more concentrated on the heat exchange side 1012, thereby promoting rapid cooling of the ice grid 101, thereby improving the ice-making efficiency of the ice-making machine.

[0123] Furthermore, since the ice-making machine of the embodiment of the present invention reduces the loss of cooling capacity, it ensures that the cooling capacity of the heat exchange medium cannot be fully utilized, and part of the cooling capacity returns to the refrigeration cycle system, which reduces the load of the compressor and thus reduces energy consumption.

[0124] When defrosting, the heat exchange medium is compressed into high-temperature and high-pressure gas in the compressor and then discharged directly into the heat exchange container 2. The high-temperature and high-pressure heat exchange medium can transfer heat to the ice cube tray 101 through the heat exchange plane 204 of the heat exchange tube. Since the side of the heat exchange tube away from the ice cube tray 101 is in a vacuum environment, it cannot radiate heat to the external environment, thereby ensuring that the heat in the heat exchange medium can be concentrated on the side in contact with the ice cube tray 101, thereby increasing the heating rate of the ice cube tray 101, helping to shorten the defrosting time, improving the defrosting efficiency, and also reducing the working time of the compressor with high temperature load, thereby reducing energy consumption.

[0125] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A heat exchange device, characterized in that: include: A shell (1), wherein a heat exchange side (1012) and a vacuum structure (1021) are formed on the shell (1), wherein the heat exchange side (1012) is used to connect an object to be heat exchanged, and the vacuum structure (1021) is used to connect a vacuum device; A heat exchange container (2) is at least partially disposed in the shell (1) and is used to accommodate a heat exchange medium. The heat exchange container (2) has an input end and an output end. The heat exchange container (2) has a first side and a second side that are arranged opposite to each other. 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).

2. The heat exchange device according to claim 1, characterized in that: The housing (1) is provided with a vacuum through hole, and the vacuum structure (1021) comprises: A joint body (10211) is arranged in the vacuum through hole, and a first annular convex portion and a second annular convex portion are sequentially arranged in the joint body (10211) along the gas outlet direction; A sealing bead (10212) is movably disposed in the joint body (10211) and is located between the first annular protrusion and the second annular protrusion, and is capable of sealing 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, and is capable of applying a force toward the first annular protrusion to the sealing bead (10212).

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

4. The heat exchange device according to claim 3, characterized in that: The cross-section of the heat exchange tube is waist-shaped, and a straight side of the waist-shaped tube is connected to the heat exchange side (1012).

5. The heat exchange device according to claim 3, characterized in that: The heat exchange tube comprises a first tube segment (201), a second tube segment (202) and a third tube segment (203) which are arranged in sequence and connected to each other; two ends of the heat exchange tube are respectively connected to the first tube segment (201) and the second tube segment (202); and the third tube segment (203) is connected to a side of the second tube segment (202) away from the second tube segment (202).

6. The heat exchange device according to claim 5, characterized in that: The third pipe section (203) bypasses the outer circumference of the second pipe section (202) and is connected to the first pipe section (201).

7. The heat exchange device according to claim 1 or 2, characterized in that: The size of the gap is d1, the distance between the first surface and the second side of the heat exchange container (2) is d2, and d1≥0.4d2.

8. The heat exchange device according to claim 1 or 2, characterized in that: The housing (1) comprises: An ice tray (101) having at least one ice-making groove (1011) formed thereon, wherein the heat exchange side (1012) is formed on a side of the ice tray (101) away from the ice-making groove (1011); The rear cover (102) is arranged on the ice tray (101) and is located on a side of the ice tray (101) away from the ice making groove (1011); the heat exchange container (2) is arranged between the ice tray (101) and the rear cover (102).

9. The heat exchange device according to claim 8, characterized in that: In a direction away from the rear cover (102), the lower wall of the ice making groove (1011) is inclined downward.

10. The heat exchange device according to claim 8, characterized in that: A communicating hole (1013) is formed between two adjacent ice making grooves (1011) on the ice tray (101).

11. An ice making machine, characterized in that: include: The heat exchange device according to any one of claims 1 to 10; A compressor, wherein the output end of the heat exchange device is connected to the input end of the compressor; 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.

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