Ice maker

Abstract

The utility model relates to the technical field of ice-making machines, in particular to an ice-making machine which comprises an outer shell, the outer shell is provided with a containing cavity, the containing cavity is provided with an ice-making assembly and a heat dissipation assembly, and the ice-making assembly comprises an ice-making part, a refrigerating part located on the lower side of the ice-making part and a heat conduction part connected between the refrigerating part and the heat dissipation assembly. Insulating glue is arranged between the refrigerating part and the ice making part, and insulating glue or heat conducting glue is arranged between the heat conducting part and the heat dissipation assembly. Compared with the prior art, the insulation paste adopted by the utility model has good temperature resistance and moisture resistance, and can better maintain the bonding performance in a vibration state in an environment with large temperature difference and large humidity, thereby reducing the condition that the heat conductivity coefficient is reduced due to the loosening of the refrigeration piece caused by environmental change, and improving the reliability of the refrigeration piece. The arrangement of the heat conduction part can better improve the heat transfer between the refrigeration piece and the heat dissipation assembly, and the normal ice making effect of the ice maker is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ice making machines, in particular to an ice making machine. Background Art

[0002] As my country's economic living standards improve, technology changes life and penetrates into all aspects of the lives of the general public, prompting people to pursue individuality and potential demand for improving the quality of life. At the same time, people's high attention and pursuit of the quality of daily life details have become an important aspect of the general public's efforts to improve the quality of life and meet their own cultural needs. According to the market data surveyed, ice machines were originally widely used in small and medium-sized places. Now the demand for ice in coffee, iced drinks, and drinks by families and individuals is also growing rapidly, and more and more sophisticated cold ice extraction methods are emerging on the market, and there are more requirements for ice in all aspects that are more suitable for such groups. The small-volume household ice machines on the market produce about 15kg of ice per day. For a small group of less than 4 people, the amount of ice produced is too much, and the quality of the ice is not dense, easy to melt, and easily affects the taste of the drink. In addition, the ice-discharging method is a compressor-type mechanical automation industrial style, and the size and appearance are large-scale, which cannot meet the new demand of small unit groups for small and exquisite ice-making machines that are suitable for their own characteristics.

[0003] Ice-making machines using semiconductor refrigeration have also appeared on the market. However, the existing ice-making machines generally use thermal conductive glue to connect the refrigeration parts and the ice-making part for conduction. The thermal conductive glue is in a paste form when used, has good fluidity, and can fill the gaps on uneven surfaces under a small installation pressure, thereby reducing thermal resistance and improving heat transfer efficiency. The thermal conductive glue gradually solidifies after assembly and turns into a state with certain elasticity and adhesion. However, due to the large temperature difference of ice making in the ice-making machine, the thermal conductive glue is in a high humidity operating environment for a long time, and the ice-making machine needs to be vibrated and inverted to produce ice cubes frequently, so that the thermal conductive glue is easy to loosen the refrigeration parts and reduce the thermal conductivity coefficient in the use environment with large temperature difference and high humidity, resulting in the refrigeration parts being unable to effectively approach the ice-making part. During use, the ice-making effect of the ice-making machine gradually deteriorates or even fails.

[0004] In view of the above shortcomings, it is necessary to develop an ice maker to improve the connection effect between the refrigeration component and the ice making part, and further enhance the user experience of the product. Utility Model Content

[0005] In view of the technical problem that the existing ice maker generally uses heat-conducting glue to connect the refrigeration part and the ice-making part, and the ice maker needs to vibrate frequently to invert the ice cubes, so that the heat-conducting glue is easy to loosen the refrigeration part and reduce the thermal conductivity in the use environment with large temperature difference and high humidity, the technical solution adopted by the utility model to solve the technical problem is:

[0006] An ice maker comprises an outer shell, the outer shell is provided with a accommodating cavity, the accommodating cavity is provided with an ice making assembly and a heat dissipation assembly, the ice making assembly comprises an ice making part, a refrigeration element located at the lower side of the ice making part, and a heat conducting part connected between the refrigeration element and the heat dissipation assembly, insulating glue is provided between the refrigeration element and the ice making part, and insulating glue or heat conducting glue is provided between the heat conducting part and the heat dissipation assembly.

[0007] Furthermore, in some embodiments of the present invention, the refrigeration element is a PN junction, the PN junction is provided with a cold end, a hot end, and a semiconductor located between the cold end and the hot end, and the cold end is connected to the lower side of the ice-making part by insulating glue.

[0008] Furthermore, in some embodiments of the present invention, the heat conducting part is a single-sided ceramic plate, the single-sided ceramic plate is connected to the lower side of the hot end by welding, and the refrigeration component and the heat conducting part are not detachable.

[0009] Furthermore, in some embodiments of the present invention, the single-sided ceramic plate is provided with a plurality of connection points for connecting the hot end, and the connection points are made of one or more materials of copper, aluminum, lead, tin, and stainless steel.

[0010] Furthermore, in some embodiments of the present invention, the heat dissipation assembly includes a heat dissipation part connected to the heat conductive part, a heat conducting pipe connected to the heat dissipation part, a fin assembly connected to the heat conducting pipe, and a heat dissipation fan, the fin assembly includes a first fin assembly and a second fin assembly that are relatively arranged, the heat dissipation fan is located between the first fin assembly and the second fin assembly, the distance between the heat dissipation fan and the first fin assembly and the distance between the heat dissipation fan and the second fin assembly are respectively less than 100 mm, the outer shell is provided with a first air outlet and a second air outlet, the first air outlet and the second air outlet are relatively arranged and correspond to the inlet and outlet directions of the heat dissipation fan.

[0011] Furthermore, in some embodiments of the utility model, a bracket is connected to the lower side of the ice-making part, an insulation layer is provided on the outer peripheral side of the ice-making part, the insulation layer is provided with a first connection part, the outer shell is provided with a third connection part extending into the first connection part, and the bracket is provided with a second connection part and a fastener for connecting the third connection part and the second connection part.

[0012] Furthermore, in some embodiments of the utility model, it also includes a cover body arranged on the upper side of the outer shell, the ice-making part is provided with an ice-making groove, and the ice-making groove is provided with a plurality of ice-making grooves, the outer shell is provided with an extension surface abutting the upper end surface of the ice-making part, and an upper opening located on the extension surface and connected to the ice-making groove, and the extension surface is provided with a guide surface inclined from top to bottom and extending to the upper opening.

[0013] Furthermore, in some embodiments of the present invention, the insulation layer is respectively abutted against the inner wall of the outer shell, the upper end surface of the bracket, the lower side of the extension surface, and the outer peripheral side of the ice-making part, and the insulation layer is made of EVA material or PU foam material.

[0014] Furthermore, in some embodiments of the present invention, the thickness of the PN junction is 2.2 mm-2.7 mm, and the temperature difference between the cold end and the hot end is 46-66°C.

[0015] Furthermore, in some embodiments of the present invention, the ice-making temperature difference of the ice-making assembly is 38-48°C, the ice-making power of the ice-making assembly is 70-100W, the voltage range is DC10V-30V, the thickness of the ice-making part is 2.2mm-2.7mm, and the thickness of the insulating glue is 0.05mm-0.2mm.

[0016] The beneficial effects of the utility model are as follows:

[0017] The insulating adhesive used in the utility model has good temperature resistance and moisture resistance. In an environment with large temperature difference and high humidity, the insulating adhesive can better maintain its bonding performance under vibration, reduce the loosening of refrigeration parts due to environmental changes, and thus reduce the reduction in thermal conductivity. The setting of the heat-conducting part can better improve the heat transfer between the refrigeration parts and the heat dissipation components, and ensure the normal ice-making effect of the ice maker. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of an ice making machine.

[0019] Figure 2 for Figure 1 AA section view.

[0020] Figure 3 for Figure 2 Enlarged view of part B.

[0021] Figure 4 The utility model is an exploded view of an ice making machine.

[0022] Figure 5 The utility model is an exploded view of an ice making machine. DETAILED DESCRIPTION

[0023] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5An ice-making machine shown includes an outer shell 1, wherein the outer shell 1 is provided with a receiving chamber 2, wherein the receiving chamber 2 is provided with an ice-making assembly 3 and a heat dissipation assembly 4, wherein the ice-making assembly 3 includes an ice-making part 31, a refrigeration element 32 located at the lower side of the ice-making part 31, and a heat-conducting part 33 connected between the refrigeration element 32 and the heat dissipation assembly 4, wherein an insulating glue is provided between the refrigeration element 32 and the ice-making part 31, and an insulating glue or a heat-conducting glue is provided between the heat-conducting part 33 and the heat dissipation assembly 4. The insulating glue used in the utility model has good temperature resistance and moisture resistance. In an environment with a large temperature difference and high humidity, the insulating glue can better maintain its bonding performance under vibration, reduce the situation where the refrigeration element is loosened due to environmental changes, and thus reduce the situation where the thermal conductivity coefficient is reduced. The provision of the heat-conducting part can better improve the heat transfer between the refrigeration element and the heat dissipation assembly, and ensure the normal ice-making effect of the ice-making machine.

[0025] Furthermore, as a preferred embodiment of the present invention but not a limitation, by using insulating glue between the refrigeration unit and the ice-making unit, the electrical safety of the entire ice-making machine can be improved. The insulating glue has good insulation performance and can effectively isolate the electrical connection between the refrigeration unit and the ice-making unit, thereby reducing safety risks caused by electrical failures.

[0026] Specifically, insulating glue has better temperature stability than thermal conductive glue and can withstand larger temperature differences without losing its bonding properties. At the same time, insulating glue has better moisture resistance than thermal conductive glue and is suitable for use in high humidity environments. Insulating glue may increase the stability of the connection and reduce looseness problems caused by vibration and other reasons.

[0027] Optionally, in some embodiments, since the temperature between the heat-conducting portion and the heat-dissipating component is relatively high, a heat-conducting adhesive may be filled between the heat-conducting portion and the heat-dissipating component to improve the heat transfer effect.

[0028] Optionally, in some embodiments, insulating glue is filled between the heat-conducting portion and the heat dissipation assembly to prevent the heat-conducting portion from loosening under a vibration environment.

[0029] Optionally, in some embodiments, when the ice maker is cylindrical, its dimensions are 140-200 mm in height and 90-150 mm in diameter, or when the ice maker is polygonal, its dimensions are 160 mm in height, 105 mm in length and 105 mm in width.

[0030] like Figure 2 and Figure 3In the ice-making machine shown, the refrigeration element 32 is a PN junction, and the PN junction is provided with a cold end 321, a hot end 322, and a semiconductor 323 located between the cold end 321 and the hot end 322, and the cold end 321 is connected to the lower side of the ice-making part 31 by an insulating glue. Further, as a preferred embodiment of the utility model but not a limitation, in the ice-making machine, the PN junction is used as a refrigeration element, and its cold end directly participates in the ice-making process. Since the P-type and N-type junctions of the semiconductor material can effectively absorb heat from the ice-making part, they can be used to quickly cool and make ice cubes. The insulating glue between the cold end connecting the PN junction and the ice-making part can fill the small gap between the two, thereby ensuring the effective transfer of heat, and due to its temperature resistance, even if the ice-making machine produces a large temperature difference during operation, the insulating glue can maintain stable performance and is not easy to loosen or deform.

[0031] In addition, the moisture resistance of the insulating glue can resist the influence of humidity in the working environment on the connection parts, reducing the problem of connection failure caused by humidity. At the same time, the insulation performance of the insulating glue can also effectively prevent the occurrence of electrical failures and improve the safety of the ice maker.

[0032] In the prior art, semiconductor refrigeration components generally use double-sided ceramic plates connected to PN junctions, one of which is connected between the cold end and the ice-making part, and the other is connected between the hot end and the heat-conducting part. Since there are ceramic plates between the cold end and the ice-making part, the thermal resistance will be increased, and the thermal resistance will limit the flow of heat, increase the obstacles for heat to pass through the material, and thus reduce the conductivity. The present application reduces the connection between the ceramic plate and the cold end and the ice-making part while using insulating glue. By directly using insulating glue to connect the cold end to the lower side of the ice-making part, not only can the use cost of the ceramic plate be reduced, but also the thermal resistance can be reduced, the conductivity can be increased, and the ice-making effect of the ice-making part can be accelerated.

[0033] Optionally, in some embodiments, when the refrigeration element is connected to a forward current, the cold end is cooled and the hot end is heated, and when the refrigeration element is connected to a reverse current, the cold end is heated and the hot end is cooled.

[0034] Optionally, in some embodiments, the refrigeration component projection is a polygon or a circle. Specifically, the refrigeration component projection is a rectangle, and preferably, the refrigeration component projection is a square.

[0035] Optionally, in some embodiments, the ice maker further includes a controller, and the control unit can control the forward and reverse directions of the current. The ice maker uses a forward current when making ice, and uses a reverse current when defrosting ice.

[0036] like Figure 2 and Figure 3In the ice-making machine shown, the heat-conducting part 33 is a single-sided ceramic plate, which is connected to the lower side of the hot end 322 by welding, and the refrigeration element 32 and the heat-conducting part 33 are not removable. Further, as a preferred embodiment of the utility model but not a limitation, the ceramic plate itself has a low expansion coefficient and a high-strength structure, which helps to fix and strengthen the structure of the ice-making component. The single-sided ceramic plate provides a flat and parallel installation surface, and its structural stability can ensure long-term stable thermal contact between the refrigeration element and the heat-conducting part. The ceramic plate itself has good thermal conductivity, which helps to effectively conduct the heat generated by the refrigeration element and improve the heat dissipation efficiency. At the same time, the rapid conduction of heat can maintain the temperature difference between the cold end and the hot end of the refrigeration element, thereby improving the ice-making efficiency.

[0037] In addition, by connecting by welding, the connection between the single-sided ceramic plate and the hot end is more secure, which can improve the structural stability of the entire ice-making assembly and reduce the impact of external vibration on the connection. At the same time, connecting the single-sided ceramic plate and the hot end by welding can reduce thermal resistance, improve heat conduction efficiency, and ensure the normal operation of the ice-making assembly.

[0038] In addition, the heat conduction part and the refrigeration part are non-detachable, which not only simplifies the structure of the ice-making assembly and reduces the number of parts, but also helps to reduce the looseness and poor contact between parts, thereby improving the overall stability and reliability of the system.

[0039] like Figure 2 and Figure 3 In the ice maker shown, the single-sided ceramic plate is provided with a plurality of connection points for connecting the hot end 322, and the connection points are made of one or more materials of copper, aluminum, lead, tin, and stainless steel.

[0040] Optionally, in some embodiments, metal materials such as copper and aluminum have good thermal conductivity, which helps to improve the thermal conductivity efficiency of the connection point and conduct heat from the refrigeration component to the single-sided ceramic plate.

[0041] Optionally, in some embodiments, materials such as stainless steel have good corrosion resistance, which can ensure that the connection point is not easily damaged by corrosion in a humid environment or in contact with an ice-making component, thereby extending the service life of the connection.

[0042] Optionally, in some embodiments, metals such as lead and tin have good solderability, facilitating a stable connection.

[0043] Optionally, in some embodiments, providing multiple connection points on the single-sided ceramic plate can increase the stability and firmness of the connection, effectively achieve a close connection between the refrigeration component and the heat conduction part, and improve the performance and reliability of the entire system.

[0044] Optionally, in some embodiments, in order to improve the sealing performance between the single-sided ceramic panel and the refrigeration component, a sealing layer is connected between the single-sided ceramic panel and the refrigeration component.

[0045] Optionally, in some embodiments, the sealing layer is insulating glue.

[0046] like Figure 2 , Figure 3 and Figure 5 An ice maker is shown, the heat dissipation assembly 4 includes a heat dissipation portion 41 connected to the heat conduction portion 33, a heat conduction pipe 42 connected to the heat dissipation portion 41, a fin assembly 43 connected to the heat conduction pipe 42, and a heat dissipation fan 44, the fin assembly 43 includes a first fin assembly 431 and a second fin assembly 432 which are arranged opposite to each other, the heat dissipation fan 44 is located between the first fin assembly 431 and the second fin assembly 432, the distance between the heat dissipation fan 44 and the first fin assembly 431 and the distance between the heat dissipation fan 44 and the second fin assembly 432 are both less than 100 mm, the outer shell 1 is provided with a first air outlet 5 and a second air outlet 6, the first air outlet 5 and the second air outlet 6 are arranged opposite to each other and correspond to the air inlet and outlet directions of the heat dissipation fan 44.

[0047] Optionally, in some embodiments, the fin assembly includes a first fin assembly and a second fin assembly, and the fins of the first fin assembly and the second fin assembly are designed to be thin and wide, which can increase the heat exchange area with the air and improve the heat dissipation efficiency. The first fin assembly and the second fin assembly are arranged relative to each other to form a more effective heat exchange structure. The fins of the prior art are arranged in an annular shape, and the heat dissipation fan is located between the inner cavity formed by the annular fin assembly. After the heat dissipation fan is started, the wind moves in a straight line, and the position of some fins that are horizontally and vertically to the wind force moving direction cannot be taken away by the flowing air, resulting in heat accumulation and affecting the heat dissipation effect. In this embodiment, the first fin assembly and the second fin assembly are both composed of multiple fins arranged in an upper and lower interval, and the fin shape is semicircular. The heat dissipation fan is located between the two semicircular first fin assemblies and the second fin assemblies. The volume of the heat dissipation fan is not affected by the inner cavity formed by the fin assembly, which can ensure that the heat of the first fin assembly and the second fin assembly is taken away by the flowing air without generating an accumulation area.

[0048] Optionally, in some embodiments, a plurality of heat pipes are provided, and a heat dissipation portion connected to the heat conducting portion helps to effectively transfer heat to the heat pipe, and the symmetrically arranged heat pipes transfer heat to the first fin assembly and the second fin assembly respectively, ensuring uniform heat distribution. Optionally, in some embodiments, the heat pipe is made of copper, aluminum or other high thermal conductivity metals, which can provide an efficient heat transfer path.

[0049] Optionally, in some embodiments, the heat pipe is inserted into the first fin assembly from top to bottom.

[0050] Optionally, in some embodiments, the heat pipe is inserted into the second fin assembly from top to bottom.

[0051] Optionally, in some embodiments, the heat dissipation fan is located between the first fin assembly and the second fin assembly, and the heat dissipation effect of the fin assembly can be improved by accelerating the air flow through wind force. The distance between the heat dissipation fan and the fin assembly is less than 100 mm, which helps to maximize the heat dissipation effect of the fan. Preferably, the distance between the heat dissipation fan and the fin assembly is between 2 mm and 10 mm, and its compact layout ensures that the heat dissipation fan can effectively accelerate the air flow, avoid heat accumulation between the fin assembly and the heat dissipation fan, and thus accelerate the dissipation of heat.

[0052] Optionally, in some embodiments, the first fin assembly is located between the first air outlet and the heat dissipation fan, and the second fin assembly is located between the second air outlet and the heat dissipation fan. Such an arrangement allows the wind on the outside of the outer shell to move in a straight line from the direction of the first air outlet, the first fin assembly, the heat dissipation fan, the second fin assembly, and the second air outlet, or the wind on the outside of the outer shell to move in a straight line from the direction of the second air outlet, the second fin assembly, the heat dissipation fan, the first fin assembly, and the first air outlet, which helps to form good air circulation and improve the efficiency of the entire heat dissipation system.

[0053] Optionally, in some embodiments, when the heat dissipation component is cylindrical, its dimensions are 80-140 mm in height and 70-100 mm in diameter; when the heat dissipation component is polygonal, its dimensions are 100 mm in height, 100 mm in length and 75 mm in width.

[0054] like Figure 2 , Figure 3 and Figure 5 An ice-making machine is shown, wherein a bracket 311 is connected to the lower side of the ice-making part 31, an insulating layer 312 is provided on the outer peripheral side of the ice-making part 31, the insulating layer 312 is provided with a first connecting part 3121, the outer shell 1 is provided with a third connecting part 10 extending into the first connecting part 3121, the bracket 311 is provided with a second connecting part 3112 and a fastener for connecting the third connecting part 10 and the second connecting part 3121.

[0055] Optionally, in some embodiments, the bracket is connected to the lower side of the ice-making part, which can effectively position and support the ice-making part, and ensure that it is firmly installed in the accommodating cavity, so as to ensure that the ice-making part is not easily moved or misplaced by external vibration or other influences. Optionally, the bracket is provided with a bracket opening 3111, which can allow the refrigeration element and the heat-conducting part to extend into and be positioned.

[0056] Optionally, in some embodiments, the heat-insulating layer is located on the outer peripheral side of the ice-making part, and its function is to reduce the heat exchange during the ice-making process, help maintain the low-temperature environment required for the ice-making process, and improve the ice-making efficiency.

[0057] Optionally, in some embodiments, the insulation layer, the outer shell and the bracket are connected together by fasteners, which can ensure that the bracket and the insulation layer will not loosen or separate during use, thereby ensuring the long-term stability and reliability of the ice-making part.

[0058] Optionally, in some embodiments, the first connection portion and the second connection portion are both connection holes, the third connection portion is a connection column, and the fastener is a screw, a nut, a bolt, etc.

[0059] Optionally, in some embodiments, the first connection portion, the second connection portion and the third connection portion may be a combination of a protrusion and a slot, and the fastener may be a buckle.

[0060] like Figure 2 , Figure 3 , Figure 4 and Figure 5 The ice-making machine shown in the figure further includes a cover body 7 disposed on the upper side of the outer shell 1, the ice-making part 31 is provided with an ice-making groove 313, and the ice-making groove 313 is provided with a plurality of grooves, the outer shell 1 is provided with an extension surface 8 abutting against the upper end surface of the ice-making part 31, and an upper opening 9 located on the extension surface 8 and connected with the ice-making groove 313, and the extension surface 8 is provided with a guide surface 81 inclined from top to bottom and extending to the upper opening 9. Optionally, in some embodiments, the cover body disposed on the upper side of the outer shell is used to cover the ice-making part, provide protection for the ice-making part, prevent dust, debris, etc. from entering, protect its internal structure and provide additional insulation effect, and the combination of the cover body and the insulation layer may provide a good insulation effect, ensure that the interior of the ice-making part maintains the required low temperature environment, and improve the ice-making efficiency and quality.

[0061] Optionally, in some embodiments, the ice-making unit is provided with a plurality of ice-making grooves, which can increase the ice-making capacity of the ice-making unit, and are used to accommodate ice cubes formed during the ice-making process, thereby improving the ice-making efficiency. The number of ice-making grooves can be 2, 4, 6, etc. Optionally, in some embodiments, the ice-making unit is made of metal, and a food-grade coating is applied inside the ice-making grooves.

[0062] Optionally, in some embodiments, a curved surface is provided in the ice-making groove to facilitate the sliding of ice cubes when removing ice.

[0063] Optionally, in some embodiments, the outer shell is provided with an extension surface abutting against the upper end surface of the ice-making part, the extension surface extends horizontally, and the setting of the extension surface forms a transition area between the ice-making part and the outer shell, and the extension surface can limit the upward movement of the ice-making part.

[0064] Specifically, the upper opening is connected to the ice-making groove, which can ensure that the liquid flows into the ice-making groove during the water adding process, facilitate the observation of the ice-making process, and ensure that the ice cubes can be smoothly separated from the ice-making groove during the ice-removing process.

[0065] Further, as a preferred embodiment of the present invention but not a limitation, the guide surface utilizes gravity and the directionality of water flow, so that the water flow can flow into the ice-making groove more smoothly, reducing splashing and waste of water flow. Optionally, in some embodiments, when it is necessary to vibrate to remove ice cubes, the ice maker can be vibrated at an angle, and the inclined guide surface helps the ice cubes slide along the guide surface when they are out of the ice-making groove, so that they are easier to remove from the ice maker, making the ice-making process smoother, and there is no need to completely invert the entire ice maker, thereby reducing the risk of ice cubes getting stuck or damaged.

[0066] like Figures 2 to 5 In the ice-making machine shown, the heat-insulating layer 312 is respectively in contact with the inner side wall of the outer shell 1, the upper end surface of the bracket 311, the lower side of the extension surface 8, and the outer peripheral side of the ice-making part 31, and the heat-insulating layer 312 is made of EVA material or PU foam material. Further, as a preferred embodiment of the utility model but not a limitation, the all-round connection between the heat-insulating layer and the outer shell, the bracket, the extension surface and the ice-making part ensures that the heat in the ice-making process is not easily leaked, prevents the loss of heat and the interference of the external environment on the ice-making process, and maximizes the heat-insulating effect.

[0067] Specifically, the thermal insulation layer of EVA material can adapt to low temperature environment and will not become hard or brittle due to low temperature. The thermal insulation layer of EVA material can maintain good elasticity and flexibility, is easy to shape, and can fit tightly with various components of the ice maker to provide an effective sealing effect to prevent cold air from leaking. At the same time, the thermal insulation layer of EVA material has good thermal insulation performance and durability, reducing the need for maintenance and replacement, and can effectively reduce heat transfer, ensuring that the required low temperature environment is maintained inside the ice-making part, thereby improving ice-making efficiency.

[0068] Specifically, PU foam material is light, durable and has good moisture-proof properties. Its closed-cell structure can prevent air convection, slow down heat transfer, effectively isolate the temperature difference between inside and outside, maintain a low-temperature environment, and further reduce refrigeration energy consumption.

[0069] like Figures 1 to 5In the ice maker shown, the PN junction thickness is 2.2mm-2.7mm, and the temperature difference between the cold end 321 and the hot end 322 is 46-66°C. Further, as a preferred embodiment of the utility model but not limited thereto, in order to reduce the energy consumption of the ice maker and improve its stability. Reasonable PN junction thickness and temperature difference range help to reduce the energy consumption of the ice maker and improve energy utilization efficiency; at the same time, it also helps to maintain the stable operation of the ice maker and reduce the possibility of failure.

[0070] Specifically, in order to ensure the thermal conductivity and mechanical strength of the PN junction, the thickness of the PN junction is within the range of 2.2mm-2.7mm. As the core part of the refrigeration unit, the thickness of the PN junction directly affects the heat transfer efficiency. A PN junction that is too thick will increase the thermal resistance and affect the refrigeration effect; while a PN junction that is too thin will not be able to withstand the thermal stress during operation, resulting in unstable performance or damage.

[0071] Specifically, the temperature difference between the cold end and the hot end is set at 46-66℃. The size of the temperature difference directly affects the cooling efficiency. If the temperature difference is too large, the heat at the hot end of the PN junction will be difficult to dissipate, thus affecting the overall cooling effect; if the temperature difference is too small, it will not meet the cooling needs of ice making. By accurately controlling the temperature difference range, the problem of PN junction overheating or insufficient cooling can be avoided while ensuring the cooling efficiency.

[0072] like Figures 1 to 5 In the ice-making machine shown, the ice-making temperature difference of the ice-making component 3 is 38-48°C, the ice-making power of the ice-making component 3 is 70-100W, the voltage range is DC10V-30V, the thickness of the ice-making part 31 is 2.2mm-2.7mm, and the thickness of the insulating glue is 0.05mm-0.2mm.

[0073] Specifically, the size of the ice-making temperature difference directly affects the ice-making speed and efficiency. Too small a temperature difference will result in too slow an ice-making speed, which cannot meet actual needs; while too large a temperature difference can increase the ice-making speed, it will also increase energy consumption and machine burden. By reasonably setting the ice-making temperature difference, you can reduce energy consumption and machine loss while ensuring ice-making efficiency.

[0074] Specifically, the ice-making power is set at 70-100W, and the voltage range is DC10V-30V, so that the ice-making component can quickly absorb heat and convert it into cold. This range not only ensures the ice-making capacity of the ice-making machine, but also avoids the problem of excessive energy consumption caused by excessive power. The utility model not only meets the ice-making needs in a home or small commercial environment, but also saves energy and electricity while maintaining efficient operation.

[0075] Specifically, the thickness of the ice-making part is set to 2.2mm-2.7mm, which takes into account both the structural strength of the ice-making part and the heat conduction efficiency. An ice-making part that is too thick will lead to a decrease in heat conduction efficiency and affect the ice-making speed; while an ice-making part that is too thin cannot ensure its structural stability.

[0076] Specifically, the thickness of the insulating glue is set to 0.05mm-0.2mm. This setting can ensure the insulation effect while avoiding the additional thermal resistance, space occupation and cost increase caused by excessive thickness of the insulating glue. The main function of the insulating glue is to prevent heat loss and achieve electrical insulation. By reasonably controlling its thickness, the overall structure and performance of the ice maker can be optimized while ensuring the insulation effect.

[0077] like Figures 1 to 5 As shown, the implementation method of Example 1 is as follows:

[0078] An ice maker includes an outer shell 1, wherein the outer shell 1 is provided with a accommodating chamber 2, wherein the accommodating chamber 2 is provided with an ice-making assembly 3 and a heat dissipation assembly 4, wherein the ice-making assembly 3 includes an ice-making portion 31, a refrigeration component 32 located at the lower side of the ice-making portion 31, and a heat-conducting portion 33 connected between the refrigeration component 32 and the heat-dissipating assembly 4, wherein insulating glue is provided between the refrigeration component 32 and the ice-making portion 31, and insulating glue is provided between the heat-conducting portion 33 and the heat-dissipating assembly 4.

[0079] The refrigeration element 32 is a PN junction, and the PN junction is provided with a cold end 321, a hot end 322, and a semiconductor 323 located between the cold end 321 and the hot end 322. The cold end 321 is connected to the lower side of the ice making part 31 through insulating glue.

[0080] When the cooling element 32 is connected to a forward current, the cold end 321 is cooled and the hot end 322 is heated. When the cooling element 32 is connected to a reverse current, the cold end 321 is heated and the hot end 322 is cooled.

[0081] The refrigeration element 32 is projected into a rectangle.

[0082] The ice maker also includes a controller, and the control part can control the forward and reverse directions of the current. The ice maker is in the forward direction when making ice, and in the reverse direction when removing ice.

[0083] In this embodiment, the ceramic plate is connected between the cold end 321 and the ice-making part 31 while using the insulating glue. By directly connecting the cold end 321 to the lower side of the ice-making part 31 with the insulating glue, not only the use cost of the ceramic plate can be reduced, but also the thermal resistance can be reduced, the conductivity coefficient can be improved, and the ice-making effect of the ice-making part 31 can be accelerated.

[0084] The heat conducting part 33 is a single-sided ceramic plate, which is connected to the lower side of the hot end 322 by welding. The refrigeration element 32 and the heat conducting part 33 are not detachable.

[0085] The heat conducting part 33 and the refrigeration element 32 are non-detachable, which not only simplifies the structure of the ice-making assembly 3 and reduces the number of parts, but also helps to reduce the looseness and poor contact between parts and improve the overall stability and reliability of the system.

[0086] The single-sided ceramic plate is provided with a plurality of connection points for connecting to the hot end 322 , and the connection points are made of copper.

[0087] The heat dissipation component 4 includes a heat dissipation part 41 connected to the heat conduction part 33, a heat conduction pipe 42 connected to the heat dissipation part 41, a fin assembly 43 connected to the heat conduction pipe 42, and a heat dissipation fan 44. The fin assembly 43 includes a first fin assembly 431 and a second fin assembly 432 that are arranged opposite to each other. The heat dissipation fan 44 is located between the first fin assembly 431 and the second fin assembly 432. The distance between the heat dissipation fan 44 and the first fin assembly 431 and the distance between the heat dissipation fan 44 and the second fin assembly 432 are both less than 100 mm. The outer shell 1 is provided with a first air outlet 5 and a second air outlet 6. The first air outlet 5 and the second air outlet 6 are arranged opposite to each other and correspond to the air inlet and outlet directions of the heat dissipation fan 44.

[0088] The first fin assembly 431 and the second fin assembly 432 are both composed of multiple fins spaced apart from top to bottom, and the fins are semicircular in shape, and the heat dissipation fan 44 is located between the two semicircular first fin assemblies 431 and the second fin assemblies 432. The distance between the heat dissipation fan 44 and the fin assembly 43 is 5 mm.

[0089] The first fin assembly 431 is located between the first air outlet 5 and the heat dissipation fan 44 , and the second fin assembly 432 is located between the second air outlet 6 and the heat dissipation fan 44 .

[0090] There are multiple heat pipes 42, and the heat pipes 42 are inserted from top to bottom on the first fin assembly 431, and the heat pipes 42 are inserted from top to bottom on the second fin assembly 432. The heat dissipation part 41 connected to the heat conduction part 33 helps to effectively transfer heat to the heat pipes 42. The symmetrically arranged heat pipes 42 transfer heat to the first fin assembly 431 and the second fin assembly 432 respectively, ensuring uniform heat distribution. The heat pipes 42 are made of copper.

[0091] The lower side of the ice-making part 31 is connected to a bracket 311, the outer peripheral side of the ice-making part 31 is provided with a heat-insulating layer 312, the heat-insulating layer 312 is provided with a first connecting part 3121, the outer shell 1 is provided with a third connecting part 10 extending into the first connecting part 3121, the bracket 311 is provided with a second connecting part 3112 and a fastener for connecting the third connecting part 10 and the second connecting part 3121. The first connecting part 3121 and the second connecting part 3112 are both connecting holes, the third connecting part 10 is a connecting column, and the fastener is a screw.

[0092] It also includes a cover body 7 arranged on the upper side of the outer shell 1, the ice-making part 31 is provided with an ice-making groove 313, and the ice-making groove 313 is provided with a plurality of ice-making grooves, the outer shell 1 is provided with an extension surface 8 abutting against the upper end surface of the ice-making part 31, and an upper opening 9 located on the extension surface 8 and connected to the ice-making groove 313, and the extension surface 8 is provided with a guide surface 81 inclined from top to bottom and extending to the upper opening 9.

[0093] The ice making part 31 is provided with 4 ice making grooves 313. The ice making part 31 is made of metal material, and a food grade coating is applied inside the ice making grooves 313. The size of the ice making grooves 313 is 69*59*19mm, and the size of each ice cube is 28*24*17mm.

[0094] The heat-insulating layer 312 is respectively in contact with the inner wall of the outer shell 1 , the upper end surface of the bracket 311 , the lower side of the extension surface 8 , and the outer peripheral side of the ice-making part 31 , and the heat-insulating layer 312 is made of EVA material.

[0095] The thickness of the PN junction is 2.5 mm, and the temperature difference between the cold end 321 and the hot end 322 is 52° C.

[0096] The ice-making temperature difference of the ice-making assembly 3 is 46° C., the ice-making power of the ice-making assembly 3 is 75W, the thickness of the ice-making part 31 is 2.5 mm, and the thickness of the insulating glue is 0.1 mm.

[0097] The insulating adhesive used in the utility model has good temperature resistance and moisture resistance. In an environment with large temperature difference and high humidity, the insulating adhesive can better maintain its bonding performance under vibration, reduce the loosening of the refrigeration component 32 due to environmental changes, and thus reduce the reduction in thermal conductivity. The setting of the heat-conducting part 33 can better improve the heat transfer between the refrigeration component 32 and the heat dissipation component 4, thereby ensuring the normal ice-making effect of the ice maker.

[0098] The implementation method of Example 2 is as follows:

[0099] The difference between Example 2 and Example 1 is that a thermal conductive adhesive is provided between the heat conducting portion 33 and the heat dissipation component 4 .

[0100] The implementation method of Example 3 is as follows:

[0101] Embodiment 3 further has the following implementation mode based on embodiment 1, wherein a sealing layer is connected between the single-sided ceramic plate and the refrigeration element 32 .

[0102] The implementation method of Example 4 is as follows:

[0103] Embodiment 4 further has the following implementation mode based on embodiment 1: the ice maker is cylindrical, with dimensions of 160 mm in height and 110 mm in diameter; the heat dissipation component 4 is cylindrical, with dimensions of 120 mm in height and 90 mm in diameter.

[0104] The implementation method of Example 5 is as follows:

[0105] Embodiment 5 is based on Embodiment 1 and has the following implementation mode: the ice maker is polygonal, and its dimensions are 160 mm in height, 105 mm in length, and 105 mm in width. The heat dissipation component 4 is polygonal, and its dimensions are 100 mm in height, 100 mm in length, and 75 mm in width.

[0106] The implementation method of Example 6 is as follows:

[0107] The difference between Example 6 and Example 1 is that the thermal insulation layer 312 is made of PU foam material.

[0108] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. An ice making machine, comprising an outer shell (1), characterized in that: The outer shell (1) is provided with a containing cavity (2), the containing cavity (2) is provided with an ice-making assembly (3) and a heat dissipation assembly (4), the ice-making assembly (3) comprises an ice-making portion (31), a refrigeration element (32) located at the lower side of the ice-making portion (31), and a heat-conducting portion (33) connected between the refrigeration element (32) and the heat dissipation assembly (4), an insulating glue is provided between the refrigeration element (32) and the ice-making portion (31), and an insulating glue or a heat-conducting glue is provided between the heat-conducting portion (33) and the heat dissipation assembly (4).

2. An ice making machine according to claim 1, characterized in that: The refrigeration element (32) is a PN junction, the PN junction is provided with a cold end (321), a hot end (322), and a semiconductor (323) located between the cold end (321) and the hot end (322), and the cold end (321) is connected to the lower side of the ice-making part (31) by means of insulating glue.

3. An ice making machine according to claim 2, characterized in that: The heat conducting part (33) is a single-sided ceramic plate, which is connected to the lower side of the hot end (322) by welding, and the refrigeration component (32) and the heat conducting part (33) are non-detachable.

4. An ice making machine according to claim 2, characterized in that: The single-sided ceramic plate is provided with a plurality of connection points for connecting the hot end (322), and the connection points are made of one or more materials such as copper, aluminum, lead, tin, and stainless steel.

5. The ice making machine according to claim 1, characterized in that: The heat dissipation assembly (4) comprises a heat dissipation portion (41) connected to the heat conduction portion (33), a heat conduction pipe (42) connected to the heat dissipation portion (41), a fin assembly (43) connected to the heat conduction pipe (42), and a heat dissipation fan (44); the fin assembly (43) comprises a first fin assembly (431) and a second fin assembly (432) arranged opposite to each other; the heat dissipation fan (44) is located between the first fin assembly (431) and the second fin assembly (432); the distance between the heat dissipation fan (44) and the first fin assembly (431) and the distance between the heat dissipation fan (44) and the second fin assembly (432) are both less than 100 mm; the outer shell (1) is provided with a first air outlet (5) and a second air outlet (6); the first air outlet (5) and the second air outlet (6) are arranged opposite to each other and correspond to the air inlet and outlet directions of the heat dissipation fan (44).

6. The ice making machine according to claim 1, characterized in that: The lower side of the ice-making part (31) is connected to a bracket (311); the outer peripheral side of the ice-making part (31) is provided with a heat-insulating layer (312); the heat-insulating layer (312) is provided with a first connecting part (3121); the outer shell (1) is provided with a third connecting part (10) extending into the first connecting part (3121); the bracket (311) is provided with a second connecting part (3112) and a fastener for connecting the third connecting part (10) and the second connecting part (3121).

7. An ice making machine according to claim 6, characterized in that: The invention also comprises a cover body (7) arranged on the upper side of the outer shell (1); the ice-making portion (31) is provided with an ice-making groove (313); the ice-making groove (313) is provided with a plurality of ice-making grooves (313); the outer shell (1) is provided with an extension surface (8) abutting against the upper end surface of the ice-making portion (31); and an upper opening (9) located on the extension surface (8) and connected to the ice-making groove (313); the extension surface (8) is provided with a guide surface (81) inclined from top to bottom and extending to the upper opening (9).

8. An ice making machine according to claim 7, characterized in that: The thermal insulation layer (312) is respectively in contact with the inner side wall of the outer shell (1), the upper end surface of the bracket (311), the lower side of the extension surface (8), and the outer peripheral side of the ice making part (31), and the thermal insulation layer (312) is made of EVA material or PU foam material.

9. The ice making machine according to claim 2, characterized in that: The thickness of the PN junction is 2.2 mm-2.7 mm, and the temperature difference between the cold end (321) and the hot end (322) is 46-66°C.

10. An ice making machine according to any one of claims 1 to 9, characterized in that: The ice-making temperature difference of the ice-making component (3) is 38-48°C, the ice-making power of the ice-making component (3) is 70-100W, the voltage range is DC10V-30V, the thickness of the ice-making part (31) is 2.2mm-2.7mm, and the thickness of the insulating glue is 0.05mm-0.2mm.

Images