Ice maker

Abstract

The utility model discloses an ice maker which comprises a pre-cooling water path plate, an evaporator and a spraying water path plate, the evaporator comprises an evaporation pipe and a plurality of ice fingers which are fixedly connected with the evaporation pipe and extend downwards, and the evaporation pipe is clamped between the pre-cooling water path plate and the spraying water path plate; the pre-cooling water path plate is provided with a raw water inlet, a pre-cooling cavity communicated with the raw water inlet and a pre-cooling water outlet communicated with the pre-cooling cavity, and the spraying water path plate is provided with a pre-cooling water inlet communicated with the pre-cooling water outlet, a spraying cavity communicated with the pre-cooling water inlet and a spraying opening communicated with the spraying cavity. The spraying waterway plate is further provided with a through hole for the ice finger to penetrate through, and the spraying openings are arranged around the through hole. The interlayer design of the pre-cooling water path plate, the evaporator and the spraying water path plate can protect the evaporator on one hand, and on the other hand, the cooling capacity of the evaporator can be fully utilized to pre-cool raw water, so that the ice making efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of ice making equipment, and specifically relates to an ice making machine. Background Art

[0002] There are many existing ice making methods, such as spray type, running water type, ice box type, immersion type and the like.

[0003] The spray ice machine uses a nozzle to spray water onto the evaporator to condense ice cubes on the evaporator. The spray ice machine has relatively high requirements on the precision of the nozzle layout, spray angle, spray range, etc., and the cost of ice making also increases accordingly.

[0004] Flowing water ice making is to make water flow through a mesh ice grid. A steam generator is provided on one side of the ice grid to cool the ice grid. During the entire ice making process, the water flowing through the ice grid is in indirect contact with the evaporator, the ice making efficiency is low, and the water flow rate is difficult to control. It is even more difficult to form ice cubes when the flow rate is faster.

[0005] Ice box type ice maker puts an ice box filled with water into the freezer to make ice, which has low ice making efficiency and high energy consumption.

[0006] The immersion ice machine immerses the ice finger of the evaporator into the water box, and ice cubes condense on the ice finger. After ice making is completed, the motor flip device needs to be activated to flip the water box so that the ice finger is exposed from the water box. At this time, the evaporator is heated and the ice cubes fall off to complete ice making. Due to the need to add a motor flip device and other structures, the immersion ice machine is large in size, complex in drive control, and relatively poor in stability during operation. In addition, the existing immersion ice machine has an evaporator exposed inside the machine body, and there is a great waste of cooling capacity of the evaporator.

[0007] The prior art discloses an ice maker, including an evaporator and a water sprinkling box, the water sprinkling box is located above the evaporator and fixed to the evaporator, a plurality of water sprinkling holes are provided on the water sprinkling box corresponding to the evaporator, the evaporator includes a plurality of evaporation tubes connected in sequence, the plurality of evaporation tubes are arranged at intervals along the transverse direction, the water sprinkling box includes a plurality of diverter boxes, the diverter boxes are located on the top surface of the evaporation tubes, each diverter box extends along a different evaporation tube, and a plurality of water sprinkling holes are provided on the diverter boxes at intervals along the extension direction of the evaporation tubes. The water sprinkling box in the ice maker is close to the top of the evaporator, and the water in the water sprinkling box can be precooled through the top of the evaporator to reduce the waste of the evaporator's cooling capacity. However, the lower part of the evaporator, especially the part of the evaporator not connected to the evaporation tube, is still in an exposed state, and the cooling capacity of the evaporator is still not fully utilized, resulting in energy waste. Moreover, the water sprinkling holes are arranged above the evaporating tubes. During the ice-making process, water flows down from the top of the evaporating tubes. In order to achieve uniform freezing in the circumferential direction of the evaporating tubes, higher precision requirements are imposed on the setting position of the water sprinkling holes, the hole size, the relative position between the water sprinkling holes and the evaporating tubes, etc., which results in an increase in the cost of ice-making. Utility Model Content

[0008] The present application provides an ice-making machine to solve the technical problems of low cold capacity utilization rate of the existing evaporator and high ice-making cost.

[0009] The technical solution adopted in this application is:

[0010] An ice making machine comprises a precooling waterway plate, an evaporator and a spray waterway plate, the evaporator comprising an evaporating tube and a plurality of ice fingers fixedly connected to the evaporating tube and extending downward, the evaporating tube being clamped between the precooling waterway plate and the spray waterway plate, the precooling waterway plate being provided with a raw water inlet, a precooling cavity communicating with the raw water inlet, and a precooling water outlet communicating with the precooling cavity, the spray waterway plate being provided with a precooling water inlet communicating with the precooling water outlet, a spray cavity communicating with the precooling water inlet, and a spray port communicating with the spray cavity, the spray waterway plate being further provided with a through hole for the ice fingers to pass through, and the spray port being arranged around the through hole.

[0011] The ice making machine in this application also includes the following additional technical features:

[0012] The precooling water circuit plate includes a precooling upper cover and a precooling lower cover, and the precooling upper cover and the precooling lower cover cooperate to form the precooling cavity; the precooling upper cover and / or the precooling lower cover are provided with guide ribs protruding and extending toward the precooling cavity, and the guide ribs divide the precooling cavity into a plurality of first flow channels that are interconnected.

[0013] The spray waterway plate includes a spray upper cover and a spray lower cover, and the spray upper cover and the spray lower cover cooperate to form the spray chamber; the through hole includes an upper through hole provided on the spray upper cover and a lower through hole provided on the spray lower cover, and the inner wall surface of the upper through hole and / or the lower through hole is convexly provided with a limiting rib, and the limiting rib abuts against the ice finger to arrange the ice finger in the center.

[0014] The spray waterway plate includes a spray upper cover and a spray lower cover, and the spray upper cover and the spray lower cover cooperate to form the spray chamber; the spray upper cover and / or the spray lower cover are provided with spoiler ribs protruding and extending toward the spray chamber, and the spoiler ribs separate the spray chamber into a plurality of second flow channels connecting the pre-cooling water inlet and the spray port.

[0015] The spoiler ribs include diverter ribs arranged around the pre-cooling water inlet and gathering ribs arranged around the spray port, and the second flow channel includes a diverter channel formed between two adjacent diverter ribs and a flow gap formed between the diverter ribs and the gathering ribs.

[0016] The spray waterway plate is provided with a jet groove which surrounds the spray port and is arranged downward, the inner wall surface of the jet groove is a slope which slopes downward, and the bottom end of the slope is connected to the spray port so that the precooling water is sprayed obliquely from the spray port.

[0017] The spray waterway plate is provided with a cylindrical spray column arranged around the through hole, and a plurality of spray ports are provided at intervals along the circumference of the spray column, so that the spray ports are arc-shaped along a cross section perpendicular to the axial direction of the through hole.

[0018] The pre-cooling water circuit plate is provided with a water outlet pipe extending downward, the pre-cooling water outlet is provided at the water outlet pipe, and the water outlet pipe is plugged and sealed with the pre-cooling water inlet; or, the spray water circuit plate is provided with a water inlet pipe extending upward, the pre-cooling water inlet is provided at the water inlet pipe, and the water inlet pipe is plugged and sealed with the pre-cooling water outlet; or, the pre-cooling water circuit plate is provided with a water outlet pipe extending downward, the pre-cooling water outlet is provided at the water outlet pipe, and the spray water circuit plate is provided with a water inlet pipe extending upward, the pre-cooling water inlet is provided at the water inlet pipe, and the water outlet pipe is plugged and sealed with the water inlet pipe.

[0019] The precooling waterway plate is provided with a first mounting hole, the spraying waterway plate is provided with a second mounting hole, the precooling waterway plate and the spraying waterway plate are connected by fasteners penetrating the first mounting hole and the second mounting hole; the evaporation tube is clamped and fixed between the precooling waterway plate and the spraying waterway plate;

[0020] The ice maker further comprises a machine body, and the evaporator further comprises a positioning bracket fixedly connected to the evaporation tube, and the positioning bracket is fixedly connected to the machine body.

[0021] The ice maker also includes a water tank located below the ice fingers and an ice storage basket removably placed on the upper part of the water tank. The water tank is connected to the raw water inlet through a water delivery pipeline.

[0022] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0023] 1. In the present application, a precooling water circuit plate is arranged above the evaporating tube of the ice making machine, and a spraying water circuit plate is arranged below the evaporating tube, so that the precooling water circuit plate, the evaporating tube and the spraying water circuit plate are stacked in sequence from top to bottom, and the evaporating tube is located in the center to form a sandwich arrangement. The cooling capacity of the evaporating tube is fully utilized, which not only avoids energy waste, but also allows the raw water to be initially cooled and cooled under the action of the evaporating tube after entering the precooling chamber. After the water flowing out of the precooling chamber enters the spraying water circuit plate, since the spraying water circuit plate is adjacent to the evaporating tube, the cooling capacity of the evaporating tube can also be transferred to the spraying water circuit plate, so that the water can maintain a lower temperature before being sprayed out from the spray port, thereby improving the ice making efficiency.

[0024] Furthermore, the spray water circuit plate is provided with a through hole for the ice finger to pass through, and the ice finger extends downward through the through hole, and the spray port is arranged around the through hole, so that during the ice making process, water is sprayed out from the spray port and directly sprayed onto the ice finger along the circumference of the ice finger, part of the water condenses into ice, and part of the water flows down along the ice finger. The entire spraying process can avoid water splashing onto the evaporation tube. Compared with the technical solution in the prior art that the spray hole is arranged above the ice finger and water is sprayed from above, the present application can reduce the probability of ice formation at the evaporation tube, which not only realizes the rational use of water, but also can ensure the overall flow direction of water, thereby improving the freezing quality of ice cubes at the ice finger.

[0025] In addition, compared with the immersion ice maker in the prior art, the present application eliminates the need for a motor flipping device, which not only reduces the production cost of the entire machine, optimizes the structural layout of the product, and reduces the complexity of drive control during the ice-making process, but also avoids the noise problem caused by flipping the water box during the ice-making operation.

[0026] 2. As a preferred embodiment of the present application, the precooling upper cover and / or the precooling lower cover of the precooling water circuit plate are provided with a guide rib protruding and extending toward the precooling cavity, and the guide rib divides the precooling cavity into a plurality of first flow channels that are interconnected. With such an arrangement, on the one hand, the flow path of the raw water after entering the precooling cavity can be extended, so that the flow time of the raw water in the precooling cavity is relatively extended, thereby increasing the precooling time of the evaporator for the raw water, making the precooling effect of the raw water better, and using the evaporator to achieve pre-cooling of the raw water. On the other hand, the cross-sectional area of ​​the first flow channel is reduced compared with the overall precooling cavity, so the flow rate of water in the first flow channel increases. In the process of flowing along the first flow channel, the streamline of the fluid will swing in a wave-like manner and even turbulence will occur at the corners, thereby intensifying the collision between water molecules, which helps to improve the exchange and heat exchange of water, thereby improving the precooling effect of water in the precooling cavity, and further helps to improve the ice making efficiency.

[0027] 3. As a preferred embodiment of the present application, a limiting rib is convexly provided on the inner wall surface of the through hole, and the limiting rib abuts against the ice finger. On the one hand, it can provide positioning during the installation of the spray water plate and the evaporator, thereby improving the assembly efficiency between the two. On the other hand, it can make the ice finger arranged in the center, so that the ice layer attached to the ice finger can be coaxial during the spray ice-making process, and the wall thickness of the produced ice cubes can be uniform, thereby improving the quality of the ice cubes.

[0028] 4. As a preferred embodiment of the present application, the spray upper cover and / or the spray lower cover are provided with spoiler ribs protruding and extending toward the spray chamber, and the spoiler ribs separate the spray chamber into a plurality of second flow channels connecting the pre-cooling water inlet and the spray port. The arrangement of the spoiler ribs, on the one hand, enables the pre-cooling water to flow around along the spoiler ribs after entering the spray chamber, thereby avoiding the situation where the water volume at the spray port close to the pre-cooling water inlet is sufficient, while the water volume at the spray port far from the pre-cooling water inlet is insufficient, thereby causing the ice cubes on each ice finger to have different thicknesses, thereby improving the user's ice-making experience. On the other hand, it can enhance the disturbance effect of the pre-cooling water in the spray chamber, increase the collision between water molecules, intensify the exchange of heat, and disperse the water to each spray port through the second flow channel, thereby improving the cooling efficiency, thereby helping to improve the ice-making efficiency.

[0029] Furthermore, the flow-disturbing ribs include diverter ribs arranged around the pre-cooling water inlet and gathering ribs arranged around the spray port, a diverter channel is formed between two adjacent diverter ribs, and a flow gap is formed between the diverter ribs and the gathering ribs. The pre-cooling water can be evenly dispersed to each spray port after entering the spray chamber by diverting the flow through the diverter ribs and then gathered by the gathering ribs, and can be concentrated at each spray port, which not only ensures the water spraying amount, but also ensures the spraying speed, and realizes the consistency of the ice cubes after forming at each ice finger.

[0030] 5. As a preferred embodiment of the present application, the spray water circuit plate is provided with a sunken jet groove around the spray port, and the inner wall surface of the jet groove is a slope inclined from top to bottom, so that the pre-cooling water is sprayed obliquely from the spray port. After touching the ice finger, the pre-cooling water changes direction under the combined effect of impact force and gravity, which has a better covering effect on the ice finger, helps to accumulate ice layers, and the ice layer is more crystal clear and not prone to cracks, thereby improving the molding quality of ice cubes and pleasing user experience.

[0031] 6. As a preferred embodiment of the present application, the precooling water circuit plate and the spray water circuit plate are connected by fasteners passing through the first mounting hole of the precooling water circuit plate and the second mounting hole of the spray water circuit plate, the evaporating tube is clamped and fixed between the precooling water circuit plate and the spray water circuit plate, and the evaporator also includes a positioning bracket fixedly connected to the evaporating tube. After the precooling water circuit plate, the evaporator and the spray water circuit plate are assembled, they are fixedly connected to the body of the ice maker through the positioning bracket. The entire assembly process, on the one hand, can realize the modularization of the precooling water circuit plate, the evaporator and the spray water circuit plate pre-assembly, which is helpful for the installation efficiency of the later assembly to the body. On the other hand, clamping and fixing the evaporating tube between the precooling water circuit plate and the spray water circuit plate can protect the evaporating tube, which is not only more conducive to packaging and transportation, but also helps to reduce the protection cost during packaging and transportation.

[0032] 7. As a preferred embodiment of the present application, the water tank is located below the ice finger, and can receive the pre-cooled water flowing from the spray port and the ice finger during the ice making process, so as to cool the water in the water tank. The water in the water tank is connected to the raw water inlet through the water pipeline, so as to realize the recycling of water and avoid waste. The ice storage basket is removably placed above the water tank to receive the ice cubes dropped from the ice finger, making full use of the redundant space above the water tank to collect ice cubes. The structure is more compact, which is conducive to the miniaturization of the whole machine. In addition, the removable arrangement of the ice storage basket facilitates users to take ice cubes and clean the ice storage basket, which makes the user experience more pleasant. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0034] Figure 1 This is a partial structural schematic diagram of an ice-making machine in one embodiment of the present application;

[0035] Figure 2 A cross-sectional view of a partial structure of an ice maker in one embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of the structure of the pre-cooling lower cover in one embodiment of the present application;

[0037] Figure 4 The three-dimensional structure of the lower spray cover in one embodiment of the present application Figure 1 ;

[0038] Figure 5 The three-dimensional structure of the lower spray cover in one embodiment of the present application Figure 2 ;

[0039] Figure 6 In one embodiment of the present application, the three-dimensional spray lower cover Figure 1 ;

[0040] Figure 7 In one embodiment of the present application, the three-dimensional spray lower cover Figure 1 ;

[0041] Figure 8 A cross-sectional view of a lower spray cover in one embodiment of the present application;

[0042] Fig. 9 The assembly stereogram of the spray waterway plate, the evaporator and the pre-cooling waterway plate in one embodiment of the present application is shown in FIG. Figure 1 ;

[0043] Fig.10This is a cross-sectional view of the spray waterway plate, evaporator and pre-cooling waterway plate after assembly in one embodiment of the present application. Figure 1 ;

[0044] Fig.11 This is a cross-sectional view of the spray waterway plate, evaporator and pre-cooling waterway plate after assembly in one embodiment of the present application. Figure 2 ;

[0045] Fig.12 The assembly stereogram of the spray waterway plate, the evaporator and the pre-cooling waterway plate in one embodiment of the present application is shown in FIG. Figure 2 .

[0046] in,

[0047] 1. Precool the upper cover;

[0048] 2. Precooling lower cover; 21. Raw water inlet; 22. Precooling water outlet; 23. Water outlet pipe; 24. Guide rib; 25. First flow channel; 26. First positioning ear plate; 27. Limiting column; 28. First mounting hole;

[0049] 3. Spray cover; 31. Pre-cooling water inlet; 32. Water inlet pipe; 33. Upper through hole; 34. Second positioning ear plate; 35. Screw column; 36. Second mounting hole;

[0050] 4. Spray lower cover; 41. Lower through hole; 42. Limiting ribs; 43. Diverter ribs; 44. Gathering ribs; 45. Diverter channel; 46. Flow gap; 47. Inclined surface; 48. Spray column; 49. Spray port; 410. Jet slot;

[0051] 5. Evaporator; 51. Evaporation tube; 52. Ice finger; 53. Positioning bracket;

[0052] 6. Body;

[0053] 7. Water tank;

[0054] 8. Ice storage basket. DETAILED DESCRIPTION

[0055] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0057] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0058] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0060] like Figures 1 to 12 As shown, an ice making machine includes a precooling water circuit plate, an evaporator 5 and a spray water circuit plate, the evaporator 5 includes an evaporating tube 51 and a plurality of ice fingers 52 fixedly connected to the evaporating tube 51 and extending downward, the evaporating tube 51 is sandwiched between the precooling water circuit plate and the spray water circuit plate, the precooling water circuit plate is provided with a raw water inlet 21, a precooling cavity connected to the raw water inlet 21, and a precooling water outlet 22 connected to the precooling cavity, the spray water circuit plate is provided with a precooling water inlet 31 connected to the precooling water outlet 22, a spray cavity connected to the precooling water inlet 31, and a spray port 49 connected to the spray cavity, the spray water circuit plate is also provided with a through hole for the ice finger 52 to pass through, and the spray port 49 is arranged around the through hole.

[0061] like Figures 9 to 12As shown, the evaporation tube 51 is U-shaped, and the ice fingers 52 are arranged in sequence along the extension direction of the evaporation tube 51 so that the whole is also arranged in a U-shape. However, the present application does not limit the arrangement of the evaporation tube 51 and the ice fingers 52. The ice fingers 52 can also be arranged in a single row of straight lines, multiple rows of straight lines, a single circle of rings, multiple circles of rings, etc. Correspondingly, the evaporation tube 51 is set to a shape that matches the arrangement of the ice fingers 52 to meet the supply demand of the refrigerant to each ice finger 52.

[0062] In the present application, a precooling water circuit plate is arranged above the evaporating tube 51 of the ice maker, and a spraying water circuit plate is arranged below the evaporating tube 51, so that the precooling water circuit plate, the evaporating tube 51 and the spraying water circuit plate are stacked in sequence from top to bottom, and the evaporating tube 51 is located in the center to form a sandwich arrangement. The cooling capacity of the evaporating tube 51 is fully utilized, which not only avoids energy waste, but also allows the raw water to be initially cooled and cooled under the action of the evaporating tube 51 after entering the precooling chamber. After the water flowing out of the precooling chamber enters the spraying water circuit plate, since the spraying water circuit plate is adjacent to the evaporating tube 51, the cooling capacity of the evaporating tube 51 can also be transferred to the spraying water circuit plate, so that the water can maintain a lower temperature before being sprayed out from the spray port 49, thereby improving the ice making efficiency.

[0063] Furthermore, the spray water circuit plate is provided with a through hole for the ice finger 52 to pass through, and the ice finger 52 extends downward through the through hole, and the spray port 49 is arranged around the through hole, so that during the ice making process, water is sprayed out from the spray port 49 and directly sprayed toward the ice finger 52 along the circumference of the ice finger 52, part of the water condenses into ice, and part of the water flows down along the ice finger 52. The entire spraying process can prevent water from splashing toward the evaporation tube 51. Compared with the technical solution in the prior art that the spray hole is arranged above the ice finger and water is sprayed from above, the present application can reduce the probability of ice formation at the evaporation tube 51, which not only realizes the rational use of water, but also ensures the overall flow direction of water, thereby improving the freezing quality of ice cubes at the ice finger 52.

[0064] In addition, compared with the immersion ice maker in the prior art, the present application eliminates the need for a motor flipping device, which not only reduces the production cost of the entire machine, optimizes the structural layout of the product, and reduces the complexity of drive control during the ice-making process, but also avoids the noise problem caused by flipping the water box during the ice-making operation.

[0065] As a preferred implementation of the present application, Figure 2 and Figure 3As shown, the precooling water circuit plate includes a precooling upper cover 1 and a precooling lower cover 2, which cooperate to form a precooling cavity; the precooling upper cover 1 and / or the precooling lower cover 2 are provided with guide ribs 24 protruding and extending toward the precooling cavity, and the guide ribs 24 divide the precooling cavity into several sections of first flow channels 25 interconnected with each other. Such an arrangement, on the one hand, can extend the flow path of the raw water after entering the pre-cooling chamber, so that the flow time of the raw water in the pre-cooling chamber is relatively prolonged, thereby increasing the pre-cooling time of the raw water by the evaporator 51, making the pre-cooling effect of the raw water better, and utilizing the evaporator 51 to achieve pre-cooling of the raw water. On the other hand, the cross-sectional area of ​​the first flow channel 25 is reduced compared to the overall pre-cooling chamber, so the flow rate of water in the first flow channel 25 is increased. In the process of flowing along the first flow channel 25, the streamline of the fluid will swing in a wave-like manner and even turbulence will occur at corners, thereby intensifying the collision between water molecules, which helps to improve the exchange and heat exchange of water, thereby improving the pre-cooling effect of the water in the pre-cooling chamber, and further helps to improve the ice-making efficiency.

[0066] In one embodiment, the precooling upper cover 1 and the precooling lower cover 2 are fixed by welding to improve the sealing performance between the precooling upper cover 1 and the precooling lower cover 2. In another embodiment, the precooling upper cover 1 and the precooling lower cover 2 are connected by screws, and a first seal is provided between the precooling upper cover 1 and the precooling lower cover 2.

[0067] In one embodiment, the precooling upper cover 1 is in the shape of a flat plate, and the precooling lower cover 2 has a first chamber. When the precooling upper cover 1 is covered with the precooling lower cover 2, the two cooperate to form a precooling chamber. In another embodiment, the precooling lower cover 2 is in the shape of a flat plate, and the precooling upper cover 1 has a first chamber. When the precooling lower cover 2 is covered with the bottom of the precooling upper cover 1, the two cooperate to form a precooling chamber. In yet another embodiment, both the precooling upper cover 1 and the precooling lower cover 2 have a first chamber. When the precooling upper cover 1 and the precooling lower cover 2 are covered, the two cooperate to form a precooling chamber.

[0068] In one embodiment, the raw water inlet 21 is disposed on the precooling upper cover 1. In another embodiment, the raw water inlet 21 is disposed on the precooling lower cover 2.

[0069] like Figure 3 As shown, in a specific embodiment, the guide ribs 24 are provided on the precooling lower cover 2, and the guide ribs 24 are arranged in a multiple U-shaped pattern to divide the precooling chamber into a plurality of U-shaped first flow channels 25 that are connected in a circuitous manner. However, the present embodiment is not limited thereto, and the arrangement of the guide ribs 24 can also adopt a winding manner of any shape to form first flow channels 25 of various shapes, extending the path of the raw water flowing from the raw water inlet 21 to the precooling water outlet 22.

[0070] Preferably, the guide rib 24 is integrally formed with the pre-cooling upper cover 1 and / or the pre-cooling lower cover 2. On the one hand, this can save the increase in assembly steps caused by separate molding, and on the other hand, it makes the connection between the guide rib 24 and the pre-cooling upper cover 1 and / or the pre-cooling lower cover 2 seamless, thereby preventing water from running wild.

[0071] As a preferred implementation of the present application, Figures 5 to 8 , Fig.12 As shown, the spray waterway plate includes a spray upper cover 3 and a spray lower cover 4, and the spray upper cover 3 and the spray lower cover 4 cooperate to form a spray chamber; the through hole includes an upper through hole 33 provided on the spray upper cover 3 and a lower through hole 41 provided on the spray lower cover 4, and the inner wall surface of the upper through hole 33 and / or the lower through hole 41 is convexly provided with a limiting rib 42, and the limiting rib 42 abuts against the ice finger 52 so that the ice finger 52 is arranged in the center. The limiting rib 42 abuts against the ice finger 52, which can provide positioning during the installation process of the spray waterway plate and the evaporator 5, thereby improving the assembly efficiency between the two, and can also make the ice finger 52 arranged in the center, so that the ice layer attached to the ice finger 52 can be coaxial during the spray ice making process, and the wall thickness of the produced ice cubes can be uniform, thereby improving the quality of the ice cubes.

[0072] Preferably, a plurality of limiting ribs 42 are arranged at intervals along the circumference of the upper through hole 33 and / or the lower through hole 41 .

[0073] In one embodiment, the spray upper cover 3 and the spray lower cover 4 are fixed by welding to improve the sealing performance between the spray upper cover 3 and the spray lower cover 4. In another embodiment, the spray upper cover 3 and the spray lower cover 4 are connected by screws, and a second seal is provided between the spray upper cover 3 and the spray lower cover 4.

[0074] In one embodiment, the spray upper cover 3 is in the shape of a flat plate, and the spray lower cover 4 has a second chamber. When the spray upper cover 3 is covered with the spray lower cover 4, the two cooperate to form a spray chamber. In another embodiment, the spray lower cover 4 is in the shape of a flat plate, and the spray upper cover 3 has a second chamber. When the spray lower cover 4 is covered with the bottom of the spray upper cover 3, the two cooperate to form a spray chamber. In yet another embodiment, both the spray upper cover 3 and the spray lower cover 4 have a second chamber. When the spray upper cover 3 and the spray lower cover 4 are covered, the two cooperate to form a spray chamber.

[0075] As a preferred implementation of the present application, Figures 5 to 8As shown, the spray waterway plate includes a spray upper cover 3 and a spray lower cover 4, and the spray upper cover 3 and the spray lower cover 4 cooperate to form a spray chamber; the spray upper cover 3 and / or the spray lower cover 4 are provided with spoiler ribs protruding and extending toward the spray chamber, and the spoiler ribs separate the spray chamber into a plurality of second flow channels connecting the pre-cooling water inlet 31 and the spray port 49. The arrangement of the spoiler ribs, on the one hand, enables the pre-cooling water to flow around along the spoiler ribs after entering the spray chamber, thereby avoiding the situation that the water volume at the spray port 49 close to the pre-cooling water inlet 31 is sufficient, while the water volume at the spray port 49 far from the pre-cooling water inlet 31 is insufficient, thereby causing the phenomenon that the thickness of ice cubes on each ice finger 52 is different, thereby improving the ice making experience of the user; on the other hand, it can enhance the disturbance effect of the pre-cooling water in the spray chamber, increase the collision between water molecules, intensify the exchange heat exchange, and disperse the water to each spray port 49 through the second flow channel, thereby improving the cooling efficiency, thereby helping to improve the ice making efficiency.

[0076] As a preferred embodiment of this implementation, Figures 5 to 8 As shown, the spoiler ribs include a diverter rib 43 arranged around the pre-cooling water inlet 31, and a gathering rib 44 arranged around the spray port 49, and the second flow channel includes a diverter channel 45 formed between two adjacent diverter ribs 43, and a flow gap 46 formed between the diverter rib 43 and the gathering rib 44. The pre-cooling water can be evenly dispersed to each spray port 49 after entering the spray chamber, and can be concentrated at each spray port 49, which not only ensures the water spraying amount, but also ensures the spraying speed, and realizes the consistency of the ice cubes formed at each ice finger 52.

[0077] Furthermore, in a specific example, Figure 5 and Figure 6 As shown, the ice fingers 52 are distributed in a U shape, the pre-cooling water inlet 31 enters from the central part of the spray upper cover 3, and a plurality of spaced and straight diverter ribs 43 are distributed along the central axis of the spray upper cover 3 and the spray lower cover 4. The diverter ribs 43 divide the pre-cooling water entering the spray chamber from the pre-cooling water inlet 31 into two, so as to be diverted along both sides of the central axis. During the flow process, part of the pre-cooling water can be exchanged through the diverter channel 45 between two adjacent diverter ribs 43 to balance the water volume on both sides of the diverter rib 43. When the pre-cooling water flows to near the spray port 49, the pre-cooling water flows into between the gathering ribs 44 through the flow gap 46, and is sprayed out from the spray port 49 through the gathering and centering of the gathering ribs 44, so as to achieve uniform distribution of water volume at multiple spray ports 49.

[0078] Of course, when the arrangement of the ice fingers 52 changes, the arrangement positions and arrangements of the corresponding diverting ribs 43 and gathering ribs 44 also change accordingly.

[0079] In the present application, the structural design of the spray waterway plate at the spray port 49 can adopt any one of the following embodiments:

[0080] Embodiment 1: The spray waterway plate includes a spray upper cover 3 and a spray lower cover 4 that enclose a spray cavity, and a spray port 49 is provided at the spray lower cover 4. The spray lower cover 4 includes a bottom wall and a spray column 48 that is fixedly connected to the bottom wall and extends upward, a plurality of spray ports 49 are provided at intervals in the circumferential direction of the spray column 48, a plurality of gathering ribs 44 are provided around the spray column 48, and the bottom wall of the spray lower cover 4 between the gathering ribs 44 and the spray column 48 is a plane, and the precooling water is sprayed to the ice finger 52 along the radial direction of the through hole.

[0081] Implementation method 2: Figure 7 , Fig.10 and Fig.11 As shown, the spray waterway plate is provided with a jet groove 410 surrounding the spray port 49 and arranged downward, the inner wall surface of the jet groove 410 is a slope 47 inclined from top to bottom, and the bottom end of the slope 47 is connected to the spray port 49, so that the pre-cooling water is obliquely sprayed from the spray port 49. Specifically, the spray waterway plate includes a spray upper cover 3 and a spray lower cover 4 that enclose a spray cavity, and the spray lower cover 4 is provided with a jet groove 410 arranged downward around the spray port 49, the inner wall surface of the jet groove 410 is inclined from top to bottom to form a spray slope 47 abutting against the spray port 49, and there is an angle between the spray direction of the pre-cooling water and the radial direction of the through hole, and the angle is an acute angle.

[0082] The structure of the second embodiment enables the pre-cooled water to be sprayed obliquely, so that after it touches the ice finger 52, the pre-cooled water changes direction under the combined effect of impact force and gravity, which has a better covering effect on the ice finger 52, helps to accumulate ice layers, makes the ice layers more crystal clear, and is less likely to crack, thereby improving the molding quality of the ice cubes and pleasing the user experience.

[0083] As a preferred embodiment of the second embodiment, the spray waterway plate is provided with a cylindrical spray column 48 arranged around the through hole, and a plurality of spray ports 49 are provided at intervals along the circumference of the spray column 48, so that the cross section of the spray port 49 along the direction perpendicular to the axial direction of the through hole is arc-shaped. Such an arrangement can improve the coverage effect of the ice finger 52 along the circumferential direction of the ice finger 52 after the pre-cooling water is sprayed, and achieve full coverage of the ice finger 52 in the circumferential direction, thereby improving the quality of the ice cube after being formed.

[0084] The butt connection between the precooling waterway plate and the spray waterway plate in the present application can adopt any one of the following embodiments:

[0085] Embodiment 3: The precooling water circuit board is provided with a water outlet pipe 23 extending downward, the precooling water outlet 22 is provided at the water outlet pipe 23, and the water outlet pipe 23 is plugged and sealed with the precooling water inlet 31.

[0086] Embodiment 4: The spray waterway plate is provided with an upwardly extending water inlet pipe 32 , the precooling water inlet 31 is provided at the water inlet pipe 32 , and the water inlet pipe 32 is plugged and sealed with the precooling water outlet 22 .

[0087] Implementation method five: Figure 4 and Fig.10 As shown, the precooling water circuit plate is provided with a water outlet pipe 23 extending downward, the precooling water outlet 22 is provided at the water outlet pipe 23, the spray water circuit plate is provided with a water inlet pipe 32 extending upward, the precooling water inlet 31 is provided at the water inlet pipe 32, and the water outlet pipe 23 is plugged and sealed with the water inlet pipe 32.

[0088] Embodiments 3, 4 and 5 can both achieve water channel connection between the precooling waterway plate and the spraying waterway plate and achieve rough positioning between the two, which helps to improve the assembly efficiency of the two. In addition, the arrangement of the extended protruding water inlet pipe 32 and / or water outlet pipe 23 can also increase the gap between the precooling waterway plate and the spraying waterway plate to provide assembly space for the evaporation pipe 51.

[0089] Regardless of implementation mode three, implementation mode four and implementation mode five, at least one of the spray water circuit plate and the pre-cooling water circuit plate can be further provided with a limit column 27 extending and protruding toward the other, and the other can be provided with a limit slot adapted to the limit column 27, thereby further improving the assembly efficiency between the two and ensuring the accuracy of the alignment installation of the two.

[0090] As a preferred implementation of the present application, Figures 1 to 5 , Fig. 9 As shown, the precooling waterway plate is provided with a first mounting hole 28, the spray waterway plate is provided with a second mounting hole 36, and the precooling waterway plate and the spray waterway plate are connected by fasteners penetrating the first mounting hole 28 and the second mounting hole 36; the evaporation pipe 51 is clamped and fixed between the precooling waterway plate and the spray waterway plate; the ice maker also includes a body 6, and the evaporator 5 also includes a positioning bracket 53 fixedly connected to the evaporation pipe 51, and the positioning bracket 53 is fixedly connected to the body 6. With such an arrangement, the entire assembly process can, on the one hand, realize the modularization of the precooling waterway plate, the evaporator 5 and the spray waterway plate pre-assembly, which is conducive to the installation efficiency of the later assembly to the body 6; on the other hand, the evaporation pipe 51 is clamped and fixed between the precooling waterway plate and the spray waterway plate, which can protect the evaporation pipe 51, which is not only more conducive to packaging and transportation, but also conducive to reducing the protection cost during packaging and transportation. Furthermore, the detachable connection between the precooling waterway plate and the spray waterway plate facilitates the installation and maintenance of the evaporator 5 and reduces the operation and maintenance cost.

[0091] In a specific example, the positioning bracket 53 is fastened to the body 6 by screws, so as to facilitate installation and maintenance of the evaporator 5 .

[0092] Furthermore, if Figure 3 , Figure 4 and Fig. 9 As shown, the pre-cooling water circuit plate is provided with a first positioning lug protruding and extending in the horizontal direction, the first mounting hole 28 is provided on the first positioning lug, the spray water circuit plate is provided with a second positioning lug protruding and extending in the horizontal direction and a screw column 35 fixedly connected to the second positioning lug and extending upward, the second mounting hole 36 is provided on the screw column 35, the pre-cooling water circuit plate and the spray water circuit plate are fastened by screws, and disassembly and assembly are convenient and quick.

[0093] As a preferred implementation of the present application, Figure 1 and Figure 2 As shown, the ice maker further includes a water tank 7 located below the ice finger 52, and an ice storage basket 8 that can be placed on the upper part of the water tank 7. The water tank 7 is connected to the raw water inlet 21 through a water pipeline. The water tank 7 is located below the ice finger 52. During the ice making process, the pre-cooled water flowing from the spray port 49 and the ice finger 52 can be received, so that the water in the water tank 7 can be cooled. The water in the water tank 7 is connected to the raw water inlet 21 through the water pipeline, so that the water is recycled and waste is avoided. The ice storage basket 8 is placed on the upper part of the water tank 7 in a removable manner to receive the ice cubes dropped from the ice finger 52, and the redundant space above the water tank 7 is fully utilized to collect the ice cubes. The structure is more compact, which is conducive to the miniaturization of the whole machine. In addition, the removable arrangement of the ice storage basket 8 facilitates the user to take the ice cubes and clean the ice storage basket 8, which makes the user experience pleasant.

[0094] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0095] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0096] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An ice making machine, characterized in that: It includes a precooling water circuit plate, an evaporator and a spray water circuit plate, the evaporator includes an evaporating tube and a plurality of ice fingers fixedly connected to the evaporating tube and extending downward, the evaporating tube is clamped between the precooling water circuit plate and the spray water circuit plate, the precooling water circuit plate is provided with a raw water inlet, a precooling cavity communicated with the raw water inlet, and a precooling water outlet communicated with the precooling cavity, the spray water circuit plate is provided with a precooling water inlet communicated with the precooling water outlet, a spray cavity communicated with the precooling water inlet, and a spray port communicated with the spray cavity, the spray water circuit plate is also provided with a through hole for the ice finger to pass through, and the spray port is arranged around the through hole.

2. An ice making machine according to claim 1, characterized in that: The precooling water circuit plate includes a precooling upper cover and a precooling lower cover, and the precooling upper cover and the precooling lower cover cooperate to form the precooling cavity; the precooling upper cover and / or the precooling lower cover are provided with guide ribs protruding and extending toward the precooling cavity, and the guide ribs divide the precooling cavity into a plurality of first flow channels that are interconnected.

3. The ice making machine according to claim 1, characterized in that: The spray waterway plate includes a spray upper cover and a spray lower cover, and the spray upper cover and the spray lower cover cooperate to form the spray chamber; the through hole includes an upper through hole provided on the spray upper cover and a lower through hole provided on the spray lower cover, and the inner wall surface of the upper through hole and / or the lower through hole is convexly provided with a limiting rib, and the limiting rib abuts against the ice finger to arrange the ice finger in the center.

4. The ice making machine according to claim 1, characterized in that: The spray waterway plate includes a spray upper cover and a spray lower cover, and the spray upper cover and the spray lower cover cooperate to form the spray chamber; the spray upper cover and / or the spray lower cover are provided with spoiler ribs protruding and extending toward the spray chamber, and the spoiler ribs separate the spray chamber into a plurality of second flow channels connecting the pre-cooling water inlet and the spray port.

5. An ice making machine according to claim 4, characterized in that: The spoiler ribs include diverter ribs arranged around the pre-cooling water inlet and gathering ribs arranged around the spray port, and the second flow channel includes a diverter channel formed between two adjacent diverter ribs and a flow gap formed between the diverter ribs and the gathering ribs.

6. The ice making machine according to claim 1, characterized in that: The spray waterway plate is provided with a jet groove which surrounds the spray port and is arranged downward, the inner wall surface of the jet groove is a slope which slopes downward, and the bottom end of the slope is connected to the spray port so that the precooling water is sprayed obliquely from the spray port.

7. An ice making machine according to claim 6, characterized in that: The spray waterway plate is provided with a cylindrical spray column arranged around the through hole, and a plurality of spray ports are provided at intervals along the circumference of the spray column, so that the spray ports are arc-shaped along a cross section perpendicular to the axial direction of the through hole.

8. The ice making machine according to claim 1, characterized in that: The precooling water circuit board is provided with a water outlet pipe extending downward, the precooling water outlet is provided at the water outlet pipe, and the water outlet pipe is plugged and sealed with the precooling water inlet; Alternatively, the spray waterway plate is provided with an upwardly extending water inlet pipe, the precooling water inlet is provided at the water inlet pipe, and the water inlet pipe is plugged and sealed with the precooling water outlet; Alternatively, the precooling water circuit plate is provided with a water outlet pipe extending downward, the precooling water outlet is provided at the water outlet pipe, the spray water circuit plate is provided with a water inlet pipe extending upward, the precooling water inlet is provided at the water inlet pipe, and the water outlet pipe is plugged into and sealed with the water inlet pipe.

9. The ice making machine according to claim 1, characterized in that: The precooling waterway plate is provided with a first mounting hole, the spraying waterway plate is provided with a second mounting hole, the precooling waterway plate and the spraying waterway plate are connected by fasteners penetrating the first mounting hole and the second mounting hole; the evaporation tube is clamped and fixed between the precooling waterway plate and the spraying waterway plate; The ice maker further comprises a machine body, and the evaporator further comprises a positioning bracket fixedly connected to the evaporation tube, and the positioning bracket is fixedly connected to the machine body.

10. The ice making machine according to claim 1, characterized in that: The ice maker also includes a water tank located below the ice fingers, and an ice storage basket removably placed on the upper part of the water tank, and the water tank is connected to the raw water inlet through a water delivery pipeline.

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