Semiconductor refrigeration scheme-based efficient ice making device suitable for vehicle-mounted refrigerator

Abstract

The invention relates to an efficient ice making device based on a semiconductor refrigeration scheme and suitable for a vehicle-mounted refrigerator. The technical problem that an existing vehicle-mounted refrigerator is low in refrigerating efficiency is solved. Comprising a refrigerator partition plate arranged on one side of a vehicle-mounted refrigerator, a semiconductor TEC is arranged on the side, away from the vehicle-mounted refrigerator, of the refrigerator partition plate, a liquid cooling plate evaporator is arranged on the side, away from the refrigerator partition plate, of the semiconductor TEC, and a refrigerant flow guide assembly connected with a whole vehicle air conditioner compressor system is connected into the liquid cooling plate evaporator. A cold conduction block is arranged on the side, close to and away from the refrigerator partition plate, of the semiconductor TEC and connected with an ice making box assembly on the side, located in the vehicle-mounted refrigerator, of the refrigerator partition plate. The invention has the advantages that the dual refrigeration design of the whole vehicle air conditioner compressor system and the semiconductor TEC can realize the deep refrigeration capability, the cold surface temperature of the semiconductor TEC can be controlled at-40 DEG C, and the ice-making capability of the semiconductor TEC is ensured; the heat transfer area can be increased through the freezing sword in various forms, and the ice making efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of vehicle-mounted refrigerator equipment, specifically relating to a high-efficiency ice-making device based on a semiconductor refrigeration solution suitable for vehicle-mounted refrigerators. Background Technology

[0002] As an important in-vehicle device that enhances driving comfort and convenience, in-vehicle refrigerators have seen continuous market demand growth in recent years, driven by the upgrading of the automotive industry and consumers' pursuit of a high-quality travel experience. Existing in-vehicle refrigerator technology mainly focuses on refrigeration and insulation functions, using methods such as semiconductor refrigeration or compressor refrigeration to maintain the internal temperature within a set range lower than the ambient temperature. This technology can only store beverages, fruits, and food, failing to meet users' freezing needs during their journeys and impacting the user experience.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a vehicle refrigerator with an ice-making box installed on the inner wall of the freezing cavity [202222324815.8], which includes a vehicle refrigerator body, a freezing evaporator, a compressor, a condenser, and a metal cooling base. An ice-making cavity is installed on the metal cooling base, and a freezing cavity is installed inside the vehicle refrigerator body.

[0004] The above solution addresses the issue of existing car refrigerators' inability to make ice to some extent. However, it still has several shortcomings. For example, its metal cooling base is based on an independent compressor ice design, which is generally unusable in car refrigerators with independent compressors above 55°C, thus lacking the ability to make ice in the high-temperature environment inside a car during summer. Furthermore, the metal cooling base is made of stainless steel, which has a low thermal conductivity of approximately 16 W / m·K, and the ice box lacks any special internal structure. Figure 1 As shown, there are problems such as slow heat exchange and long ice-making time. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators includes a refrigerator partition disposed on one side of the vehicle refrigerator. A semiconductor TEC is disposed on the side of the refrigerator partition away from the vehicle refrigerator. A liquid-cooled plate evaporator is disposed on the side of the semiconductor TEC away from the refrigerator partition, and a refrigerant guiding component connected to the vehicle's air conditioning compressor system is internally connected to the liquid-cooled plate evaporator. A cold-conducting block is disposed on the side of the semiconductor TEC close to the refrigerator partition away from the refrigerator partition, and the cold-conducting block is connected to an ice-making box assembly located on the side of the refrigerator partition inside the vehicle refrigerator. One side of the vehicle refrigerator is open, and the refrigerator partition can close the open side of the vehicle refrigerator. The ice-making box assembly is disposed on the refrigerator partition and closed inside the vehicle refrigerator. The vehicle's air conditioning compressor system ensures heat exchange with the hot end of the semiconductor TEC through the refrigerant guiding component and the liquid-cooled plate evaporator, ensuring the cooling effect of the semiconductor TEC. The cold-conducting block ensures the ice-making effect of the ice-making box assembly.

[0007] In the aforementioned high-efficiency ice-making device based on a semiconductor refrigeration solution suitable for vehicle refrigerators, a fan shroud is provided on the side of the refrigerator partition away from the vehicle refrigerator. One side of the fan shroud is open and closed by the refrigerator partition. The semiconductor TEC, liquid-cooled plate evaporator, and cooling block are all located inside the fan shroud. The liquid-cooled plate evaporator has cooling fins located inside the fan shroud on the side away from the semiconductor TEC. A fan is provided at the lower end of the cooling fins, and the fan is connected to a flow-guiding circulation component that can exchange heat with the interior of the vehicle refrigerator. The refrigerant flow-guiding component is located between the liquid-cooled plate evaporator and the cooling fins. The cooling fins, fan, semiconductor TEC, and ice-making box assembly all share a single liquid-cooled plate evaporator, which can ensure high integration, reduce space occupation, and improve heat exchange efficiency. The flow-guiding circulation component facilitates heat exchange between the fan and the air inside the vehicle refrigerator, improving the heat exchange efficiency of the air inside the vehicle refrigerator.

[0008] In the aforementioned high-efficiency ice-making device based on a semiconductor refrigeration solution suitable for vehicle refrigerators, the airflow circulation component includes an air inlet grille and a return air grille disposed on the refrigerator partition and connecting the fan shroud and the interior of the vehicle refrigerator. The air inlet grille is located above the return air grille. The fan is an adjustable-speed centrifugal fan, and the air inlet on one side of the fan corresponds to the return air grille. The air outlet at the upper end of the fan is connected to one end of the fin channel in the cooling fins through an air guide channel. The air guide channel is formed between two air guide plates inclined in opposite directions. The other end of the fin channel is connected to the air inlet grille. The air guide plates ensure that the fan guides the air inside the vehicle refrigerator into the air guide channel, and the air guide channel can exchange heat with the air inside the vehicle refrigerator through the fin channel. The air inlet grille facilitates the rapid guidance of the heat-exchanged air into the vehicle refrigerator, ensuring the heat exchange efficiency and effect of the air inside the vehicle refrigerator.

[0009] In the aforementioned high-efficiency ice-making device based on a semiconductor refrigeration solution suitable for vehicle refrigerators, the refrigerant guiding assembly includes a curved refrigerant channel disposed on the side of the liquid-cooled plate evaporator near the refrigeration fins. The refrigeration fins abut against the side of the liquid-cooled plate evaporator to close the opening of the refrigerant channel. The refrigeration fins are equipped with a refrigerant inlet pipe and a refrigerant outlet pipe respectively connected to both ends of the refrigerant channel. The refrigerant inlet pipe and the refrigerant outlet pipe respectively extend out of the shroud. The refrigerant of the vehicle's air conditioning compressor system can be introduced into the refrigerant channel through the refrigerant inlet pipe, and the refrigerant in the refrigerant channel can exchange heat with the hot end of the semiconductor TEC to ensure the cooling effect of the semiconductor TEC.

[0010] In the above-mentioned high-efficiency ice-making device based on semiconductor refrigeration solution suitable for vehicle refrigerators, the vehicle air conditioning compressor system includes a vehicle air conditioning compressor, one end of which is connected to a vehicle air conditioning condenser, the vehicle air conditioning condenser is connected to an air conditioning evaporator through an air conditioning expansion valve, and the air conditioning evaporator is connected to the other end of the vehicle air conditioning compressor through an air conditioning side pressure regulating valve.

[0011] In the above-mentioned high-efficiency ice-making device based on semiconductor refrigeration for vehicle refrigerators, the vehicle air conditioning condenser is connected to the refrigerant inlet pipe via a refrigerator expansion valve arranged in parallel with the air conditioning expansion valve. The refrigerant outlet pipe is connected to the vehicle air conditioning compressor via a one-way valve arranged in parallel with the air conditioning side pressure regulating valve. Low-temperature refrigerant can be output through the refrigerator expansion valve. The low-temperature refrigerant enters the refrigerant flow channel through the refrigerant inlet pipe to exchange heat with the hot end of the semiconductor TEC, ensuring the heat exchange effect.

[0012] In the above-mentioned high-efficiency ice-making device based on a semiconductor refrigeration solution suitable for vehicle refrigerators, the cooling block is rectangular and has a cooling protrusion on the side away from the semiconductor TEC. The cooling protrusion passes through the cooling block mounting port on the refrigerator partition. The cooling block mounting port facilitates the installation and placement of the cooling protrusion and allows it to abut against the refrigeration box assembly, ensuring the ice-making effect.

[0013] In the aforementioned high-efficiency ice-making device based on a semiconductor refrigeration solution suitable for vehicle refrigerators, the ice-making box assembly includes an ice-making box disposed on the side of the refrigerator partition located inside the vehicle refrigerator and corresponding to the installation port of the cooling block via a detachable structure. The upper end of the ice-making box is open and is detachably equipped with an ice-making box lid. The side of the ice-making box near the installation port of the cooling block has an opening, and the ice-making box has an ice groove that contacts the cooling block through the opening. The detachable structure facilitates the disassembly of the ice-making box for ice removal, improving ice removal efficiency. The ice-making box lid ensures a sealed effect on the ice-making box. The opening facilitates the placement of the ice groove, and the ice groove facilitates water storage for ice making, improving ice-making efficiency.

[0014] In the aforementioned high-efficiency ice-making device based on a semiconductor refrigeration solution suitable for vehicle refrigerators, the detachable structure includes ice box mounting slots respectively disposed on both sides of the opening of the ice box, and the refrigerator partition is provided with mounting bases respectively located on both sides of the cooling block mounting opening and corresponding one-to-one with the ice box mounting slots. The ice box mounting slots and mounting bases are detachably connected. The positioning and insertion efficiency between the ice box and the refrigerator partition can be improved through the ice box mounting slots and mounting bases, ensuring the loading and unloading efficiency of the ice box and improving the ice making and ice removal efficiency.

[0015] In the aforementioned high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators, the ice tank has a plurality of sequentially arranged freezing chambers, and each freezing chamber is provided with a freezing sword. The freezing sword is columnar and each freezing chamber has at least one freezing sword; or, the freezing sword includes a columnar body, and the columnar body is provided with a plurality of fins on its circumferential outer side. The freezing sword can increase the heat exchange area with water, thereby improving the ice-making and ice-removing efficiency. The columnar body is a multi-faceted prism, which can further increase the heat exchange area with water, thereby improving the ice-making and ice-removing efficiency. Furthermore, the fins can further increase the heat exchange area with water, thereby improving the ice-making and ice-removing efficiency.

[0016] Compared with existing technologies, the advantages of this invention are: 1. The dual cooling design of the vehicle's air conditioning compressor system and semiconductor TEC enables deep cooling capabilities, allowing the cold surface temperature of the semiconductor TEC to be controlled at -40℃, thus ensuring the ice-making capacity of the semiconductor TEC; 2. The refrigerant in the refrigerant guide assembly can simultaneously exchange heat between the cooling fins and the semiconductor TEC, ensuring the cooling effect of the semiconductor TEC and the heat exchange effect of the cooling fins. 3. The detachable structure allows for quick assembly and disassembly of the ice-making container components, improving ice-making efficiency; 4. Various forms of freezing swords can increase the heat transfer area and improve ice-making efficiency. Attached Figure Description

[0017] Figure 1 This is a structural diagram of existing technology; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram of the ice-making box assembly in this invention; Figure 4 This is an exploded view of the structure of the present invention; Figure 5 This is an exploded view of the structure from another perspective of the present invention; Figure 6 This is a schematic diagram of the structure of the fan in this invention; Figure 7 This is a schematic diagram of the ice trough structure in this invention; Figure 8 This is a schematic diagram of the structure of the freezing sword in this invention; Figure 9 This is a schematic diagram of the columnar body in this invention; Figure 10 This is a schematic diagram of the structure of the fins in this invention; Figure 11 This is a schematic diagram of the structure of the present invention; Figure 12 This is a heat transfer path diagram of the ice-making box assembly in this invention.

[0018] In the diagram: 1. Vehicle refrigerator; 11. Refrigerator shelf; 111. Cooling block mounting port; 2. Semiconductor TEC; 21. Cooling block; 211. Cooling protrusion; 3. Liquid cooling plate evaporator; 4. Vehicle air conditioning compressor system; 41. Vehicle air conditioning compressor; 42. Vehicle air conditioning condenser; 43. Air conditioning expansion valve; 44. Air conditioning evaporator; 45. Air conditioning side pressure regulating valve; 46. Refrigerator expansion valve; 47. One-way valve; 5. Refrigerant flow guide assembly; 51. Refrigerant flow channel; 52. Refrigerant inlet pipe; 53. Refrigerant outlet pipe. 53. Ice box assembly; 6. Ice box; 61. Opening; 611. Ice box lid; 62. Ice tray; 63. Freezing chamber; 631. Freezing sword; 632. Column; 633. Fin; 634. Fan cover; 7. Cooling fins; 71. Fin channel; 711. Fan; 72. Air inlet; 721. Air outlet; 722. Air guide channel; 723. Air guide plate; 724. Air circulation assembly; 8. Air inlet grille; 81. Air return grille; 82. Detachable structure; 9. Ice box mounting slot; 91. Mounting base; 92. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, this invention discloses a high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators. It includes a refrigerator shelf 11 disposed on one side of the vehicle refrigerator 1. A semiconductor TEC2 is located on the side of the refrigerator shelf 11 away from the vehicle refrigerator 1. A liquid-cooled plate evaporator 3 is located on the side of the semiconductor TEC2 away from the refrigerator shelf 11, and a refrigerant guiding assembly 5 connected to the vehicle's air conditioning compressor system 4 is internally connected to the liquid-cooled plate evaporator 3. A cooling block 21 is located on the side of the semiconductor TEC2 closest to the refrigerator shelf 11. The liquid-cooled plate evaporator 3 and the cooling block 21 are made of aluminum alloy with a high thermal conductivity of 193. W / m·K, improves heat transfer efficiency and ice-making efficiency, and the cold-conducting block 21 is connected to the ice-making box assembly 6 located on one side of the vehicle refrigerator 1 via the refrigerator partition 11. The vehicle refrigerator 1 has an open side and can be closed by the refrigerator partition 11. The ice-making box assembly 6 is set on the refrigerator partition 11 and is closed inside the vehicle refrigerator 1. The vehicle air conditioning compressor system 4 can ensure the heat exchange effect of the hot end of the semiconductor TEC2 through the refrigerant guide assembly 5 and the liquid cooling plate evaporator 3, thus ensuring the cooling effect of the semiconductor TEC2. The ice-making effect of the ice-making box assembly 6 can also be ensured through the cold-conducting block 21.

[0021] Specifically, a fan shroud 7 is provided on the side of the refrigerator partition 11 away from the vehicle refrigerator 1. One side of the fan shroud 7 is open and closed by the refrigerator partition 11. The semiconductor TEC2, the liquid-cooled plate evaporator 3, and the cooling block 21 are all located inside the fan shroud 7. The liquid-cooled plate evaporator 3, on the side away from the semiconductor TEC2, has cooling fins 71 located inside the fan shroud 7. The gap between the cooling fins 71 and the fan shroud 7 is less than 10mm. The thickness of the cooling fins 71 is less than 5mm, and the fin spacing is less than 8mm. There are no gaps between the cooling fins 71, the cooling block 21, the semiconductor TEC2, and the liquid-cooled plate evaporator 3, and a thermally conductive silicone grease coating is provided. The lower end is equipped with a fan 72, which is connected to a flow circulation component 8 that can exchange heat with the interior of the vehicle refrigerator 1. The fan 72 is an adjustable speed centrifugal fan with a noise level of less than or equal to 30dB. The refrigerant flow component 5 is located between the liquid-cooled plate evaporator 3 and the cooling fins 71. The cooling fins 71, the fan 72, the semiconductor TEC2, and the ice box component 6 all share a single liquid-cooled plate evaporator 3, which can ensure high integration, reduce space occupation, and improve heat exchange efficiency. The flow circulation component 8 facilitates heat exchange between the fan 72 and the air inside the vehicle refrigerator 1, thereby improving the heat exchange efficiency of the air inside the vehicle refrigerator 1.

[0022] The airflow circulation assembly 8 includes an air inlet grille 81 and a return air grille 82, which are installed on the refrigerator partition 11 and connect the hood 7 and the interior of the vehicle refrigerator 1. The air inlet grille 81 and return air grille 82 facilitate the rapid introduction of heat-exchanged air into the vehicle refrigerator 1, improving heat exchange efficiency. The air inlet grille 81 is located above the return air grille 82. The fan 72 is an adjustable-speed centrifugal fan, and the air inlet 721 on one side of the fan 72 corresponds to the return air grille 82. The air outlet 722 at the top of the fan 72 connects to the cooling fins 71 via an air guide channel 723. One end of the finned channel 711 is connected, and the air guide channel 723 is formed between two air guide plates 724 that are inclined in opposite directions. The other end of the finned channel 711 is connected to the air inlet grille 81. The air guide plate 724 can ensure that the fan 72 guides the air inside the vehicle refrigerator 1 into the air guide channel 723, and the air guide channel 723 can heat exchange the air inside the vehicle refrigerator 1 by guiding it into the finned channel 711. The air inlet grille 81 can facilitate the rapid guidance of the heat-exchanged air into the vehicle refrigerator 1, ensuring the heat exchange efficiency and heat exchange effect of the air inside the vehicle refrigerator 1.

[0023] like Figure 2 , Figure 5 , Figure 11 As shown, the refrigerant guiding assembly 5 includes a curved refrigerant channel 51 disposed on the side of the liquid-cooled plate evaporator 3 near the cooling fins 71. The cooling fins 71 abut against one side of the liquid-cooled plate evaporator 3 to close the opening of the refrigerant channel 51. The cross-sectional area of ​​the refrigerant channel 51 is greater than 8 mm². 2The cooling fins 71 are equipped with a refrigerant inlet pipe 52 and a refrigerant outlet pipe 53, which are respectively connected to both ends of the refrigerant flow channel 51. The refrigerant inlet pipe 52 and the refrigerant outlet pipe 53 extend out of the shroud 7. The refrigerant of the vehicle air conditioning compressor system 4 can be introduced into the refrigerant flow channel 51 through the refrigerant inlet pipe 52. The refrigerant in the refrigerant flow channel 51 can exchange heat with the hot end of the semiconductor TEC2 to ensure the cooling effect of the semiconductor TEC2.

[0024] Furthermore, the vehicle air conditioning compressor system 4 includes a vehicle air conditioning compressor 41, one end of which is connected to a vehicle air conditioning condenser 42. The vehicle air conditioning condenser 42 is connected to an air conditioning evaporator 44 via an air conditioning expansion valve 43, and the air conditioning evaporator 44 is connected to the other end of the vehicle air conditioning compressor 41 via an air conditioning side pressure regulating valve 45.

[0025] The vehicle air conditioning condenser 42 is connected to the refrigerant inlet pipe 52 via a refrigerator expansion valve 46 arranged in parallel with the air conditioning expansion valve 43. The refrigerant outlet pipe 53 is connected to the vehicle air conditioning compressor 41 via a one-way valve 47 arranged in parallel with the air conditioning side pressure regulating valve 45. Low-temperature refrigerant can be output through the refrigerator expansion valve 46. The low-temperature refrigerant enters the refrigerant flow channel 51 through the refrigerant inlet pipe 52 to exchange heat with the hot end of the semiconductor TEC2, ensuring the heat exchange effect.

[0026] Combination Figure 4 , Figure 5 , Figure 7 As shown, the cooling block 21 is rectangular and has a cooling protrusion 211 on the side away from the semiconductor TEC2. The cooling protrusion 211 passes through the cooling block mounting port 111 on the refrigerator partition 11. The cooling protrusion 211 can be easily installed and placed through the cooling block mounting port 111, and it is easy for the cooling protrusion 211 to abut against the refrigeration box assembly 11 to ensure the ice-making effect.

[0027] The ice maker assembly 6 includes an ice maker 61, which is mounted on one side of the refrigerator partition 11 inside the vehicle refrigerator 1 via a detachable structure 9 and corresponds to the cooling block mounting opening 111. The ice maker 61 is made of plastic, with an open top and a detachable ice maker lid 62. The ice maker 61 has an opening 611 on the side near the cooling block mounting opening 111, and an ice groove 63 inside the ice maker 61 that contacts the cooling protrusion 211 at the opening 611. The detachable structure 9 facilitates the disassembly of the ice maker 61 to remove ice, improving ice removal efficiency. The ice maker lid 62 ensures a closed effect on the ice maker 61. The opening 611 facilitates the placement of the ice groove 63, and the ice groove 63 facilitates water storage and ice making, improving ice making efficiency.

[0028] Specifically, the detachable structure 9 includes ice box mounting slots 91 respectively provided on both sides of the opening 611 of the ice box 61, and mounting bases 92 respectively located on both sides of the cooling block mounting opening 111 and corresponding one-to-one with the ice box mounting slots 91 on the refrigerator partition 11. The ice box mounting slots 91 and mounting bases 92 are detachably connected. The positioning and insertion efficiency between the ice box 61 and the refrigerator partition 11 can be improved through the ice box mounting slots 91 and mounting bases 92, ensuring the loading and unloading efficiency of the ice box 61 and improving the ice making and ice taking efficiency.

[0029] Combination Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 12 As shown, the ice tank 63 has several sequentially arranged freezing chambers 631, with four freezing chambers 631. The ice-making time is ≤10 minutes, requiring two semiconductor TEC2 chips to operate simultaneously, with a total power consumption of approximately 15W. Each freezing chamber 631 is equipped with a freezing sword 632. The diameter of the freezing sword 632 is greater than 2mm, and the height is greater than 4mm. The freezing sword 632 is columnar, and each freezing chamber 631 has at least one freezing sword 632. Alternatively, the freezing sword 632 includes a columnar body 633, and the columnar body 633 is provided with several fins 634 on its outer periphery. The freezing sword 632 can increase the heat exchange area with water, thereby improving the ice-making and ice-removing efficiency. The columnar body 633 is a multi-faceted prism, which can further increase the heat exchange area with water, thereby improving the ice-making and ice-removing efficiency. Furthermore, the fins 634 can further increase the heat exchange area with water, thereby improving the ice-making and ice-removing efficiency.

[0030] The principle of this embodiment is as follows: When the vehicle refrigerator 1 is in ice-making mode only: the saturation temperature of the refrigerant flowing through the liquid-cooled plate evaporator 3 needs to be controlled below 20°C, the fan 72 does not start, and the vehicle air conditioning compressor system 4 uses the low-temperature refrigerant to exchange heat with the hot end of the semiconductor TEC2 through the refrigerant guide assembly 5 and the liquid-cooled plate evaporator 3, ensuring the cooling effect of the semiconductor TEC2 and ensuring the ice-making effect of the semiconductor TEC2 in the ice-making box assembly 6; when the vehicle refrigerator 1 is in both cooling mode and ice-making mode: the saturation temperature of the refrigerant flowing through the liquid-cooled plate evaporator 3... The temperature needs to be controlled below -8℃. Fan 72 exchanges heat with the air inside the vehicle refrigerator 1, and the vehicle's air conditioning compressor system 4 directs the low-temperature refrigerant through the refrigerant guide assembly 5 to the liquid-cooled plate evaporator 3 for simultaneous heat exchange between the hot end of the semiconductor TEC2 and the cooling fins 71. The hot end of the semiconductor TEC2 releases approximately 41W of heat, which is carried away by the refrigerant in the liquid-cooled plate evaporator 3, whose saturation temperature is approximately -10℃. The refrigerant, with a saturation temperature of approximately -10℃, enters the liquid-cooled plate evaporator 3 through the refrigerant inlet pipe 52. 3. The refrigerant absorbs heat and gradually undergoes a phase change until the superheat of the refrigerant outlet pipe 53 reaches 5°C. The air after heat exchange at the cooling fins 71 flows into the vehicle refrigerator 1 through the flow guide circulation assembly 8, ensuring cooling efficiency. The cold end temperature of the semiconductor TEC2 is controlled at -15°C, providing approximately 26W of cooling capacity. This cooling capacity is rapidly transferred to the water through the high thermal conductivity aluminum alloy cooling block 42, ice tank 63, and freezing sword 632 structure, achieving rapid freezing and ensuring ice-making efficiency and effect. When the vehicle refrigerator 1 is in ice-removing mode: the refrigerant flows through... The saturation temperature of the liquid-cooled plate evaporator 3 needs to be controlled above -20℃. The working current direction of the semiconductor TEC2 is changed, and the cold end of the semiconductor TEC2 starts to heat up. The heating temperature is controlled at around 20℃. This heat is quickly transferred to the ice through the structure of the high thermal conductivity aluminum alloy cooling block 21, ice tank 63 and freezing sword 632, so that the ice can be quickly removed from the ice tank 63. The ice box lid 62, ice tank 63 and ice box 61 can be quickly removed through the detachable structure 9. After removing the ice box lid 62, the ice cube can be taken out through the handle on the ice box lid 14.

[0031] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0032] Although this article extensively uses terms such as vehicle refrigerator 1, refrigerator partition 11, cold-conducting block mounting port 111, semiconductor TEC 2, cold-conducting block 21, cold-conducting protrusion 211, liquid-cooled plate evaporator 3, vehicle air conditioning compressor system 4, vehicle air conditioning compressor 41, vehicle air conditioning condenser 42, air conditioning expansion valve 43, air conditioning evaporator 44, air conditioning side pressure regulating valve 45, refrigerator expansion valve 46, one-way valve 47, refrigerant guide assembly 5, refrigerant flow channel 51, refrigerant inlet pipe 52, refrigerant outlet pipe 53, ice maker, etc. The terms used include Component 6, Ice Maker 61, Opening 611, Ice Maker Lid 62, Ice Tank 63, Freezing Chamber 631, Freezing Sword 632, Columnar Body 633, Fins 634, Fan Shield 7, Cooling Fins 71, Fin Channel 711, Fan 72, Air Inlet 721, Air Outlet 722, Air Guide Channel 723, Air Guide Plate 724, Circulation Component 8, Air Inlet Grille 81, Air Return Grille 82, Detachable Structure 9, Ice Maker Mounting Slot 91, Mounting Base 92, etc., but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators, comprising a refrigerator partition (11) disposed on one side of a vehicle refrigerator (1), characterized in that, The refrigerator partition (11) is provided with a semiconductor TEC (2) on the side away from the vehicle refrigerator (1). The semiconductor TEC (2) is provided with a liquid cooling plate evaporator (3) on the side away from the refrigerator partition (11). The liquid cooling plate evaporator (3) is connected to a refrigerant guide assembly (5) connected to the vehicle air conditioning compressor system (4). The semiconductor TEC (2) is provided with a cooling block (21) on the side away from the refrigerator partition (11). The cooling block (21) is connected to an ice box assembly (6) located on the side of the refrigerator partition (11) inside the vehicle refrigerator (1).

2. The high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 1, characterized in that, The refrigerator partition (11) is provided with a hood (7) on the side away from the vehicle refrigerator (1). The hood (7) is open on one side and closed by the refrigerator partition (11). The semiconductor TEC (2), liquid-cooled plate evaporator (3) and cooling block (21) are all located inside the hood (7). The liquid-cooled plate evaporator (3) is provided with cooling fins (71) inside the hood (7) on the side away from the semiconductor TEC (2). The cooling fins (71) are provided with a fan (72) at the lower end. The fan (72) is connected to a flow circulation assembly (8) that can exchange heat with the inside of the vehicle refrigerator (1). The refrigerant flow assembly (5) is located between the liquid-cooled plate evaporator (3) and the cooling fins (71).

3. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 2, characterized in that, The airflow circulation assembly (8) includes an air inlet grille (81) and a return air grille (82) disposed on the refrigerator partition (11) and connecting the hood (7) and the interior of the vehicle refrigerator (1). The air inlet grille (81) is located above the return air grille (82). The fan (72) is an adjustable speed centrifugal fan (72), and the air inlet (721) on one side of the fan (72) corresponds to the return air grille (82). The air outlet (722) at the upper end of the fan (72) is connected to one end of the fin channel (711) in the cooling fins (71) through the air guide channel (723). The air guide channel (723) is formed between two air guide plates (724) that are inclined in opposite directions. The other end of the fin channel (711) is connected to the air inlet grille (81).

4. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 2 or 3, characterized in that, The refrigerant flow guide assembly (5) includes a refrigerant flow channel (51) that is curved and located on the side of the liquid-cooled plate evaporator (3) near the cooling fins (71). The cooling fins (71) abut against the side of the liquid-cooled plate evaporator (3) to close the opening of the refrigerant flow channel (51). The cooling fins (71) are equipped with a refrigerant inlet pipe (52) and a refrigerant outlet pipe (53) that are respectively connected to both ends of the refrigerant flow channel (51). The refrigerant inlet pipe (52) and the refrigerant outlet pipe (53) respectively pass through the shroud (7).

5. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 4, characterized in that, The vehicle air conditioning compressor system (4) includes a vehicle air conditioning compressor (41), one end of which is connected to a vehicle air conditioning condenser (42). The vehicle air conditioning condenser (42) is connected to the air conditioning evaporator (44) through an air conditioning expansion valve (43), and the air conditioning evaporator (44) is connected to the other end of the vehicle air conditioning compressor (41) through an air conditioning side pressure regulating valve (45).

6. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 5, characterized in that, The vehicle air conditioning condenser (42) is connected to the refrigerant inlet pipe (52) via a refrigerator expansion valve (46) connected in parallel with the air conditioning expansion valve (43), and the refrigerant outlet pipe (53) is connected to the vehicle air conditioning compressor (41) via a one-way valve (47) connected in parallel with the air conditioning side pressure regulating valve (45).

7. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 1, characterized in that, The cooling block (21) is rectangular and has a cooling bump (211) on the side away from the semiconductor TEC (2), and the cooling bump (211) is inserted into the cooling block mounting port (111) on the refrigerator partition (11).

8. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 7, characterized in that, The ice box assembly (6) includes an ice box (61) located on one side of the refrigerator partition (11) inside the vehicle refrigerator (1) via a detachable structure (9) and corresponding to the cooling block mounting port (111). The upper end of the ice box (61) is open and is detachably equipped with an ice box cover (62). The ice box (61) has an opening (611) on the side near the cooling block mounting port (111) and the ice box (61) is provided with an ice groove (63) that contacts the cooling protrusion (211) at the opening (611).

9. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 8, characterized in that, The detachable structure (9) includes ice box mounting slots (91) respectively provided on both sides of the opening (611) of the ice box (61), and the refrigerator partition (11) is provided with mounting bases (92) respectively located on both sides of the cooling block mounting port (111) and corresponding one-to-one with the ice box mounting slots (91), and the ice box mounting slots (91) and mounting bases (92) are detachably connected.

10. A high-efficiency ice-making device based on a semiconductor refrigeration scheme suitable for vehicle refrigerators according to claim 8, characterized in that, The ice tank (63) has a plurality of freezing chambers (631) arranged in sequence, and each freezing chamber (631) is provided with a freezing sword (632). The freezing sword (632) is columnar and each freezing chamber (631) has at least one freezing sword (632); or, the freezing sword (632) includes a columnar body and a plurality of fins are provided on the outer periphery of the columnar body.

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