An ice making device and ice maker

Abstract

The utility model discloses an ice making device and ice maker, ice making device includes ice making cylinder, screw rod and evaporation cylinder, and ice making cylinder is equipped with the ice making cavity and first installation mouth of intercommunication, and screw rod includes the spiral scraper and the rod body of interconnection, and the rod body rotatablely connects in first installation mouth, and the spiral scraper is located in the ice making cavity, and evaporation cylinder includes cylinder main part and spiral septum, and cylinder main part is equipped with the accommodation cavity, and spiral septum sets up in the accommodation cavity and is set up in ice making cylinder, and spiral septum is along the central axis of the rod body spiral extension arrangement, and spiral septum and the outer wall surface of ice making cylinder abut and constructs spiral channel. Among them, the outer wall surface of ice making cylinder is equipped with the first spiral groove recessed to the direction perpendicular to the central axis of the rod body. When the cooling medium is passed into in evaporation cylinder, because the outer wall surface of ice making cylinder is equipped with the first spiral groove, increases the contact area of cooling medium and ice making cylinder, reduces the distance of cooling medium and ice making cavity, has improved the ice making efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ice making, and in particular to an ice making device and an ice maker. Background Technology

[0002] Ice is a common item in daily life, used for freezing fresh food or added to beverages to enhance their flavor. To facilitate the production of ice, ice makers were designed. An ice maker typically includes a refrigeration unit, a liquid supply unit, and an ice-making device. The refrigeration unit supplies the cooling medium to the ice-making device, while the liquid supply unit supplies the liquid to be frozen. During operation, the liquid supplied by the liquid supply unit freezes under the cooling medium supplied by the refrigeration unit, forming an ice layer. This ice layer is then broken into smaller pieces by a spiral scraper on the screw of the ice-making device, transported further, and finally extruded from the ice-extrusion nozzle, completing the entire ice-making process. Currently, commercially available ice-making devices typically include an ice cylinder, a screw, and an evaporator. The evaporator is fitted onto the outer wall of the ice cylinder, and the screw is rotatably installed inside the ice cylinder. The evaporator stores the cooling medium supplied by the refrigeration unit to transfer cold energy to the liquid inside the ice cylinder, while the screw scrapes away the ice layer inside the ice cylinder to transport the scraped ice fragments. However, the ice cylinder's structure is relatively simple, and the evaporator's efficiency in transferring cold energy to the liquid inside the ice cylinder is not high, which is detrimental to improving ice-making efficiency and causes inconvenience. Utility Model Content To address the aforementioned technical problems, this utility model provides an ice-making device and an ice maker that can improve ice-making efficiency.

[0003] The technical problem solved by this utility model embodiment is addressed by the following technical solution: An ice-making device includes an ice-making cylinder, a screw, and an evaporating cylinder. The ice-making cylinder has an ice-making chamber and a first mounting port communicating with the ice-making chamber. The screw includes a spiral scraper and a rod body. The spiral scraper is connected to the rod body, and the rod body is rotatably connected to the first mounting port. The spiral scraper is located inside the ice-making chamber and is used to scrape the ice layer formed inside the ice-making chamber. The evaporating cylinder includes a cylinder body and a spiral partition. The cylinder body has a receiving cavity. The spiral partition is disposed in the receiving cavity and sleeved on the ice-making cylinder. The spiral partition extends spirally along the central axis of the rod body. The spiral partition abuts against the outer wall surface of the ice-making cylinder and forms a spiral channel. The spiral channel is used to constrain the movement of the cooling medium along a predetermined path. The outer wall surface of the ice-making cylinder has a first spiral groove recessed in a direction perpendicular to the central axis of the rod body. The first spiral groove extends spirally along the central axis of the rod body.

[0004] In some embodiments, the lead of the spiral spacer is the same as the lead of the first spiral groove, and the projection of the spiral spacer is separated from the first spiral groove along a direction perpendicular to the central axis of the rod; and / or, the cross-sectional shape of the first spiral groove includes a triangle or an arc.

[0005] In some embodiments, the cross-sectional shape of the first spiral groove is triangular; the first spiral groove includes a first groove wall surface and a second groove wall surface that are inclined relative to the outer wall surface of the ice maker, the first groove wall surface is closer to the first mounting port than the second groove wall surface, and the included angle between the first groove wall surface and the outer wall surface of the ice maker is defined as α, which satisfies 20°≤α≤60°.

[0006] In some embodiments, the first groove wall surface and the second groove wall surface are perpendicular; and / or, the intersection line of the first groove wall surface and the second groove wall surface is defined as the first intersection line, along a direction perpendicular to the central axis of the rod, the vertical distance between the first intersection line and the outer wall surface of the ice-making cylinder is d1, and the vertical distance between the first intersection line and the inner wall surface of the ice-making cylinder is d2, satisfying d1≥ 0.2mm or d2≥1mm.

[0007] In some embodiments, the spiral spacer includes a first surface and a second surface disposed opposite to each other along the central axis of the rod, the first surface being closer to the first mounting port than the second surface, wherein the first surface extends obliquely from the inner surface of the cylinder body toward a direction away from the first mounting port. In some embodiments, in one lead of the helical spacer, the number of the first helical grooves is at most three, and at least two of the first helical grooves are spaced apart along the central axis of the rod and located within the helical channel. In some embodiments, the ice-making cylinder is provided with a liquid inlet communicating with the ice-making chamber, and the liquid inlet is located at one end of the ice-making cylinder near the first mounting port; the ice-making device further includes a liquid supply tank, which is sleeved on the outer wall of the ice-making cylinder and communicates with the liquid inlet.

[0008] In some embodiments, the cylinder body includes an outer wall and a bottom wall, one end of the outer wall is connected to the bottom wall, and the other end of the outer wall is open and abuts against the wall of the liquid supply tank to close the receiving cavity.

[0009] In some embodiments, the ice-making device further includes a cylinder cover, which is detachably connected to the ice-making cylinder and covers the ice-making cavity. The cylinder cover is provided with a second mounting port and a plurality of ice outlets, which are arranged around the second mounting port. The second mounting port is connected to one end of the rod body opposite to the first mounting port. And / or, the rod body is provided with a drainage channel and a plurality of drainage ports spaced apart along the central axis of the rod body, and the plurality of drainage ports are respectively connected to the drainage channel and the ice-making chamber, wherein the drainage channel is configured to be recessed by a predetermined distance from the end of the rod body away from the first mounting port toward the first mounting port.

[0010] The technical problem solved by this utility model embodiment also adopts the following technical solution: An ice maker includes the ice-making device described above.

[0011] The beneficial effects of this utility model embodiment are as follows: The ice-making device provided in this application embodiment includes an ice-making cylinder, a screw, and an evaporating cylinder. The ice-making cylinder is provided with an ice-making cavity and a first mounting port communicating with the ice-making cavity. The screw includes a spiral scraper and a rod body. The spiral scraper is connected to the rod body, and the rod body is rotatably connected to the first mounting port. The spiral scraper is located inside the ice-making cavity and is used to scrape the ice layer formed inside the ice-making cavity. The evaporating cylinder includes a cylinder body and a spiral partition. The cylinder body is provided with a receiving cavity. The spiral partition is located inside the receiving cavity and sleeved on the ice-making cylinder. The spiral partition extends spirally along the central axis of the rod body. The spiral partition abuts against the outer wall surface of the ice-making cylinder and forms a spiral channel. The spiral channel is used to constrain the cooling medium to move along a preset path. The outer wall surface of the ice-making cylinder is provided with a first spiral groove recessed in a direction perpendicular to the central axis of the rod body. The first spiral groove extends spirally along the central axis of the rod body. Thus, when a cooling medium is introduced into the evaporator, the first spiral groove on the outer wall of the ice-making cylinder increases the contact area between the cooling medium and the ice-making cylinder, and reduces the distance between the cooling medium and the ice-making cavity. This facilitates the transfer of cold energy from the cooling medium into the ice-making cavity and improves ice-making efficiency. Attached Figure Description

[0012] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0013] Figure 1 This is a schematic diagram of the structure of an ice-making apparatus according to one embodiment of this application; Figure 2 yes Figure 1 A sectional view; Figure 3 This is a schematic diagram of the structure of an ice-making cylinder according to one embodiment of this application; Figure 4 yes Figure 1 A sectional view; Figure 5 This is a schematic diagram of the structure of an evaporator cylinder according to one embodiment of this application; Figure 6 yes Figure 5 A sectional view; Figure 7 This is a schematic diagram of the cylinder cap structure; Figure 8 This is a structural block diagram of an ice maker according to another embodiment of this application; In the diagram: 1. Ice-making device; 2. Ice-making cylinder; 3. Screw; 4. Evaporator; 5. Liquid supply tank; 6. Cylinder cover; 7. Ice break rod; 201. Ice-making chamber; 202. First mounting port; 203. First spiral groove; 204. Second spiral groove; 205. Liquid inlet; 2031. First trench wall; 2032. Second trench wall; 2033. First intersecting line; 21. Body section; 22. Connecting section; 31. Spiral scraper; 32. Rod body; 321. Drainage port; 322. Drainage channel; 41. Main body of the cylinder; 42. Spiral baffle; 43. Inlet pipe; 44. Outlet pipe; 401, receiving cavity; 402, spiral channel; 421, first surface; 422, second surface; 411. Outer wall; 412. Bottom wall; 51. Box body; 52. Base plate; 511. Infusion tubing; 61. Second installation port; 62. Ice outlet; 100. Ice maker; 20. Shell; 30. Refrigeration mechanism; 40. Liquid supply mechanism. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0016] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0017] like Figure 1-2 As shown, one embodiment of this application provides an ice-making apparatus 1, including an ice-making cylinder 2, a screw 3, and an evaporator cylinder 4. The ice-making cylinder 2 has an ice-making chamber 201 and a first mounting port 202 communicating with the ice-making chamber 201. The screw 3 includes a spiral scraper 31 and a rod body 32. The spiral scraper 31 is connected to the rod body 32, and the rod body 32 is rotatably connected to the first mounting port 202. The spiral scraper 31 is located inside the ice-making chamber 201 and is used to scrape the ice layer formed inside the ice-making chamber 201. The evaporator cylinder 4 is sleeved on the ice-making cylinder 2 and is used to contain the cooling medium that transfers cold energy to the ice-making chamber 201. The outer wall surface of the ice-making cylinder 2 is provided with a first spiral groove 203 recessed in a direction perpendicular to the central axis L of the rod body 32. The first spiral groove 203 extends spirally along the central axis L of the rod body 32.

[0018] Thus, when the cooling medium is introduced into the evaporator cylinder 4, in addition to transferring cold energy through contact with the outer wall of the ice-making cylinder 2, the cooling medium can also increase the contact area between the cooling medium and the ice-making cylinder 2 and reduce the distance between the cooling medium and the ice-making cavity 201 by filling the first spiral groove 203. This is beneficial for the cooling medium to transfer cold energy into the ice-making cavity 201 and improves the ice-making efficiency.

[0019] Understandably, if the outer wall of the ice cylinder 2 is not provided with the first spiral groove 203, the cooling medium can only indirectly transfer cold energy into the ice-making cavity 201 through the outer wall of the ice cylinder 2. In this case, the amount of cold energy transferred into the ice-making cavity 201 by the cooling medium is relatively limited. However, in this embodiment, the outer wall of the ice cylinder 2 is provided with the first spiral groove 203, and part of the cooling medium can fill the first spiral groove 203, thereby shortening the distance that the cooling medium transfers cold energy into the ice-making cavity 201 and increasing the contact area between the cooling medium and the ice cylinder 2, thereby improving the ice-making efficiency.

[0020] In some embodiments, such as Figure 3-4 As shown, the ice-making cylinder 2 includes a cylinder body 21 and a connecting part 22 connected to each other. The cylinder body 21 has an ice-making cavity 201 and a first spiral groove 203. The first spiral groove 203 is located on the outer wall surface of the cylinder body 21, and the end of the cylinder body 21 facing away from the connecting part 22 is open. The connecting part 22 has a first mounting port 202 and is used for connecting and fixing to the outside. In this embodiment, the connecting part 22 is provided with a plurality of spaced-apart connecting holes for threaded connection and fixing to the outside.

[0021] It is understandable that, in addition to the method of connecting and fixing the connecting part 22 to the outside through the connection hole to achieve threaded connection, it can also be connected and fixed to the outside in other ways. It is not limited to the method of connecting and fixing through the connection hole mentioned above. For example, the connecting part 22 can be provided with a snap-fit ​​mechanism for snapping with the outside.

[0022] The cross-sectional shape of the first spiral groove 203 can be triangular, arc-shaped, or other shapes, depending on the specific requirements, as long as it reduces the distance between the cooling medium and the ice-making cavity 201 along the direction perpendicular to the central axis L of the rod 32. It should be noted that the cross-sectional shape of the first spiral groove 203 is obtained by cutting along a plane coplanar with the first axis.

[0023] In some embodiments, such as Figure 4As shown, the cross-sectional shape of the first spiral groove 203 is triangular. The first spiral groove 203 includes a first groove wall surface 2031 and a second groove wall surface 2032 that are inclined relative to the outer wall surface of the ice-making cylinder 2. The first groove wall surface 2031 is closer to the first mounting port 202 than the second groove wall surface 2032. The angle between the first groove wall surface 2031 and the outer wall surface of the ice-making cylinder 2 is defined as α, which satisfies 20°≤α≤60°. This facilitates the discharge of gas formed after the cooling medium evaporates in the first spiral groove 203 along the first groove wall surface 2031. It avoids the formation of heat transfer dead zones due to the blockage of air bubbles in the first spiral groove 203, thus ensuring the transfer of cooling capacity to the ice-making cavity 201.

[0024] It should be noted that the heat transfer dead zone is the area occupied by bubbles formed after the cooling medium evaporates within the first spiral groove 203. The area occupied by the bubbles cannot be filled by the liquid cooling medium, causing the ice-making cylinder 2 to be unable to transfer heat normally in the area occupied by these bubbles.

[0025] In some embodiments, the first groove wall 2031 is perpendicular to the second groove wall 2032.

[0026] In some embodiments, such as Figure 4 As shown, the intersection line of the first groove wall 2031 and the second groove wall 2032 is defined as the first intersection line 2033. Along the direction perpendicular to the central axis L of the rod 32, the vertical distance between the first intersection line 2033 and the outer wall of the ice-making cylinder 2 is d1, which satisfies d1 ≥ 0.2 mm. This is beneficial to increase the depth of the first spiral groove 203 to accommodate more cooling medium, thereby improving the performance of cold energy transfer.

[0027] In some embodiments, such as Figure 4 As shown, the vertical distance between the first intersecting line 2033 and the inner wall of the ice cylinder 2 is d2, which satisfies d2≥1mm. This reduces the risk of the ice cylinder 2 having too thin a wall thickness and avoids deformation due to insufficient structural strength during the manufacturing process caused by the ice cylinder 2 having too thin a wall thickness.

[0028] In some embodiments, please combine Figure 2 and Figure 4As shown, a second spiral groove 204 is provided on the inner wall surface of the cylinder body 21. The second spiral groove 204 is formed by recessing from the inner wall surface of the cylinder body 21 toward the outer wall surface of the cylinder body 21, and the second spiral groove 204 extends spirally along the central axis L of the rod 32. Under the action of the second spiral groove 204, it is beneficial to reduce the distance between the liquid flowing in the ice-making chamber 201 and the cooling medium, which is beneficial to the transfer of cold energy from the cooling medium to the liquid in the second spiral groove 204, which is beneficial to improve the freezing efficiency. In addition, the freezing process in the ice-making cylinder 2 is that the liquid located in the second spiral groove 204 freezes first, and then gradually freezes along the direction perpendicular to the central axis L of the screw 3. This makes the freezing path controllable, which helps to reduce the resistance of the spiral scraper 31 of the screw 3 to scrape the ice, reduces the risk of screw 3 failure, and improves the stability of the ice-making device 1.

[0029] In some embodiments, such as Figure 2 As shown, the cylinder body 21 is provided with a liquid inlet 205 that communicates with the ice-making chamber 201. The liquid inlet 205 is located at one end of the cylinder body 21 near the first mounting port 202. The liquid inlet 205 is used to introduce liquid to be frozen into the ice-making chamber 201.

[0030] The liquid inlet 205 can be a through circular hole, a through square hole, or a conical hole, or any other shape, depending on the requirements. Furthermore, the number of liquid inlets 205 can be one, two, or more, depending on the specific needs. When there are multiple liquid inlets 205, they are distributed around the cylinder body 21.

[0031] In some embodiments, such as Figure 2 As shown, the rod body 32 is provided with a drainage channel 322 and multiple drainage ports 321 spaced apart along the central axis L of the rod body 32. Each drainage port 321 is connected to the drainage channel 322 and the ice-making chamber 201. The drainage channel 322 is configured to be recessed a predetermined distance from the end of the rod body 32 away from the first mounting port 202 towards the first mounting port 202. Thus, when too much liquid accumulates in the ice-making chamber 201, the excess liquid flows into the drainage channel 322 through the drainage ports 321 and eventually flows out to the outside, preventing the excess liquid in the ice-making chamber 201 from freezing and freezing the screw 3, thus avoiding abnormal operation of the screw 3 and improving the stability of the ice-making device 1. In this embodiment, the shape of the drainage port 321 can be a round hole, a square hole, or other shapes, depending on the specific needs.

[0032] It should be understood that the spiral scraper 31 extends spirally along the central axis L of the rod 32 in either the same direction as the second spiral groove 204, or in the opposite direction, depending on the specific requirements. In this embodiment, the spiral scraper 31 extends spirally in the opposite direction to the second spiral groove 204. This facilitates the scraper 31 in scraping away ice generated from the second spiral groove 204 into the ice-making chamber 201, thereby improving ice-making efficiency.

[0033] In some embodiments, such as Figure 2 , Figures 5 to 6 As shown, the evaporator 4 includes a cylinder body 41 and a spiral partition 42. The cylinder body 41 has a receiving cavity 401. The spiral partition 42 is disposed in the receiving cavity 401 and sleeved on the ice-making cylinder 2. The spiral partition 42 extends spirally along the central axis L of the rod 32. The spiral partition 42 abuts against the outer wall surface of the ice-making cylinder 2 and forms a spiral channel 402. The spiral channel 402 is used to constrain the movement of the cooling medium along a preset path. That is, under the combined action of the inner wall surface of the cylinder body 41, the spiral partition 42, and the outer wall surface of the ice-making cylinder 2, the receiving cavity 401 of the cylinder body 41 can be separated into a spiral channel 402. The cooling medium will be transported in the spiral channel 402 along the spiral upward direction of the spiral partition 42 to prolong the transport time of the cooling medium in the cylinder body 41, so that the cooling medium can fully transfer the cooling capacity to the liquid in the ice-making cavity 201. In some embodiments, please refer again Figure 2 In one lead P2 of the spiral partition 42, the number of first spiral grooves 203 is at most three, and at least two first spiral grooves 203 are spaced apart along the central axis L of the rod 32 and located within the spiral channel 402. That is, the lead P2 of the spiral partition 42 is two or three times the pitch f of the first spiral grooves 203, so that as many first spiral grooves 203 as possible can be accommodated within one lead P2 of the spiral partition 42, thereby further increasing the contact area between the cooling medium and the ice-making cylinder 2 and improving the cooling efficiency. In this embodiment, as... Figure 2 As shown, there are three first spiral grooves 203 along the central axis L of the rod 32. To facilitate understanding of the relative positions of the three first spiral grooves 203, they are distinguished by A, B, and C respectively. Understandably, when the height of the ice cylinder 2 is fixed, if the number of first spiral grooves 203 is too large, the width of the first spiral grooves 203 needs to be reduced to accommodate more of them in one lead P2 of the spiral partition 42. However, this, in turn, reduces the performance of cold energy transfer because the width of the first spiral grooves 203 in the direction of the central axis L of the rod 32 is reduced. It also results in a smaller planar area between two adjacent first spiral grooves 203, making it impossible for the spiral partition 42 to fit properly against the outer wall of the ice cylinder 2, thus affecting the delivery of the cooling medium. When there is only one first spiral groove 203, the contact area between the outer wall of the ice cylinder 2 and the cooling medium is relatively limited, resulting in less cold energy transferred by the cooling medium to the liquid inside the ice cylinder 2, which is not conducive to improving refrigeration efficiency.

[0034] In some embodiments, such as Figure 2 As shown, the lead P2 of the spiral partition 42 is the same as the lead P1 of the first spiral groove 203. Along the direction perpendicular to the central axis L of the rod 32, the projection of the spiral partition 42 is separated from the first spiral groove 203. In other words, the spiral partition 42 and the first spiral groove 203 do not intersect. In this way, the spiral partition 42 can fit against the outer wall of the ice cylinder 2 to form a closed spiral channel 402, reducing the risk of leakage of cooling medium due to the gap between the spiral partition 42 and the outer wall of the ice cylinder 2.

[0035] The lead P2 of the spiral spacer 42 refers to the axial distance between adjacent corresponding points on the spiral line when the spiral spacer 42 spirals upward along the central axis L of the rod 32. Similarly, the lead P1 of the first spiral groove 203 refers to the axial distance between adjacent corresponding points on the spiral line when the same first spiral groove 203 spirals upward along the central axis L of the rod 32.

[0036] The pitch f of the first spiral groove 203 refers to the axial distance between adjacent corresponding points on the spiral line of the adjacent first spiral groove 203 when spiraling upward along the central axis L of the rod 32.

[0037] In some embodiments, such as Figure 2 As shown, the spiral baffle 42 includes a first surface 421 and a second surface 422 disposed opposite to each other along the central axis L of the rod 32. The first surface 421 is closer to the first mounting port 202 than the second surface 422. The first surface 421 extends obliquely from the inner surface of the cylinder body 41 away from the first mounting port 202. Thus, when cooling medium is introduced into the evaporator cylinder 4, the oblique arrangement of the first surface 421 guides the cooling medium to flow toward the first spiral groove 203, which facilitates full contact between the cooling medium and the outer wall surface of the ice-making cylinder 2 and the first spiral groove 203, thereby improving the refrigeration efficiency.

[0038] In some embodiments, such as Figure 2 As shown, the evaporator cylinder 4 also includes an inlet pipe 43 and an outlet pipe 44, both of which are connected to the receiving cavity 401. The inlet pipe 43 is used to directionally deliver the cooling medium into the receiving cavity 401, and the outlet pipe 44 is used to deliver the cooling medium, having transferred its cooling capacity, out of the receiving cavity 401. In this embodiment, the inlet pipe 43 is connected to the end of the cylinder body 41 away from the first mounting port 202, and the outlet pipe 44 is connected to the end of the cylinder body 41 close to the first mounting port 202.

[0039] In some embodiments, such as Figure 2 As shown, the ice-making device 1 also includes a liquid supply tank 5, which is fitted onto the outer wall of the ice-making cylinder 2 and communicates with the liquid inlet 205. The liquid supply tank 5 is used to contain the liquid supplied to the ice-making cylinder 2. In this embodiment, the liquid supply tank 5 includes a tank body 51 and a bottom plate 52. One end of the tank body 51 is connected to the bottom plate 52, and the other end of the tank body 51 abuts against the connecting part 22 of the ice-making cylinder 2. The bottom plate 52 is arranged around the outer wall of the ice-making cylinder 2 to form a space for containing the liquid to be frozen. The tank body 51 is provided with a liquid delivery pipe 511 for introducing the liquid to be frozen into the tank. Along the central axis L of the rod 32, the distance between the central axis of the liquid delivery pipe 511 and the connecting part 22 is greater than the distance between the central axis L of the liquid inlet 205 and the connecting part 22, so that the liquid level in the liquid supply tank 5 gradually rises before flowing to the liquid inlet 205, which is beneficial for removing air from the liquid supply tank 5.

[0040] In some embodiments, please combine Figure 2 , Figures 5 to 6 The cylinder body 41 includes an outer wall 411 and a bottom wall 412. One end of the outer wall 411 is connected to the bottom wall 412, and the other end of the outer wall 411 is open and abuts against the wall of the liquid supply tank 5 to seal the receiving cavity 401. In this embodiment, the bottom plate 52 of the liquid supply tank 5 abuts against the other end of the outer wall 411, thereby sealing the receiving cavity 401. Thus, the cylinder body 41 does not need to have a top wall for sealing the receiving cavity 401. That is, the bottom plate 52 of the liquid supply tank 5 is used instead of the top wall of the cylinder body 41. This can reduce the height of the evaporator cylinder 4 in the direction of the central axis L of the rod body 32. At the same time, the cooling medium flowing in the evaporator cylinder 4 can transfer cold energy to the liquid to be frozen through the bottom plate 52, which can play a role in pre-lowering the temperature of the liquid with freezing. This is beneficial to reducing the time required for the liquid entering the ice-making chamber 201 to freeze and improving the ice-making efficiency.

[0041] In some embodiments, please refer again Figure 1 , Figure 2 and Figure 7The ice-making device 1 also includes a cylinder cover 6, which is detachably connected to the ice-making cylinder 2 and covers the ice-making chamber 201. The cylinder cover 6 has a second mounting port 61 and multiple ice outlets 62, which are arranged around the second mounting port 61. The second mounting port 61 is connected to the end of the rod 32 opposite to the first mounting port 202. Thus, the ice fragments scraped off by the screw 3 are gradually conveyed to the cylinder cover 6 under the push of the screw 3, and after being squeezed by the inner wall of the ice outlets 62, they form the desired ice blocks. In this embodiment, the inner wall of the cylinder cover 6 is provided with internal threads, and the outer wall of the ice-making cylinder 2 is provided with external threads. The internal threads and external threads are threadedly connected, thereby achieving a detachable connection between the cylinder cover 6 and the ice-making cylinder 2.

[0042] It is understandable that the connection between the cap 6 and the ice maker 2 is not limited to the threaded connection mentioned in the above embodiments. It can also be detachably connected by bolts or other structures, or by setting a snap-fit. The specific connection can be set as needed.

[0043] It should be understood that, in order to reduce the frictional resistance between the rod 32 and the second mounting port 61, a bearing can be provided at the end of the rod 32, with the outer ring of the bearing installed in the second mounting port 61 and the inner ring of the bearing fixed to the rod 32. Similarly, a bearing can also be provided at the end of the rod 32 away from the cylinder cover 6 to reduce the frictional resistance between the rod 32 and the first mounting port 202.

[0044] In some embodiments, such as Figure 2 As shown, the ice-making device 1 also includes an ice-breaking rod 7, which is connected to the end of the screw 3 away from the first mounting port 202. The ice-breaking rod 7 is used to break the ice block delivered from the ice outlet 62, thereby obtaining an ice block of a preset length. It can be understood that the ice-breaking rod 7 can rotate synchronously with the rotation of the screw 3. When the ice block delivered from the ice outlet 62 reaches the set length, the ice-breaking rod 7 will strike the ice block driven by the screw 3, causing the ice block to break, thus obtaining an ice block of the required length. In use, the liquid to be frozen is first introduced into the main body 51 of the supply tank 5 through the infusion pipe 511. When the liquid to be frozen rises to the preset liquid level, the liquid to be frozen will flow into the ice-making chamber 201 through the inlet 205. Due to the Coanda effect, the liquid flowing into the ice-making chamber 201 will flow along the inner wall of the ice-making chamber 201. At the same time, the cooling medium is introduced into the input pipe 43 of the evaporator 4. The cooling medium will move along the spiral channel 402 in the receiving cavity 401 and finally flow out from the output pipe 44. During the movement of the cooling medium along the spiral channel 402, the cooling medium transfers cold energy to the liquid in the ice-making chamber 201. The liquid in the second spiral groove 204 will freeze preferentially and be scraped off as the screw 3 rotates. After this process is repeated, the crushed ice will be transported to the ice outlet 62 of the cylinder cover 6 by the screw 3. As the screw 3 pushes, the crushed ice will be squeezed by the inner wall of the ice outlet 62 to form ice blocks of the desired shape, and finally broken by the ice-breaking rod 7 to obtain ice blocks of the desired length.

[0045] The ice-making device 1 provided in this embodiment includes an ice-making cylinder 2, a screw 3, and an evaporating cylinder 4. The ice-making cylinder 2 is provided with an ice-making chamber 201 and a first mounting port 202 communicating with the ice-making chamber 201. The screw 3 includes a spiral scraper 31 and a rod body 32. The spiral scraper 31 is connected to the rod body 32, and the rod body 32 is rotatably connected to the first mounting port 202. The spiral scraper 31 is located inside the ice-making chamber 201 and is used to scrape the ice layer formed inside the ice-making chamber 201. The evaporating cylinder 4 includes a cylinder body 41 and a spiral partition 42. The cylinder body 41 is provided with... The device includes a receiving cavity 401, within which a spiral partition 42 is disposed and fitted onto the ice-making cylinder 2. The spiral partition 42 extends spirally along the central axis L of the rod 32, and abuts against the outer wall of the ice-making cylinder 2 to form a spiral channel 402. The spiral channel 402 is used to constrain the movement of the cooling medium along a predetermined path. The outer wall of the ice-making cylinder 2 has a first spiral groove 203 recessed in a direction perpendicular to the central axis L of the rod 32, extending spirally along the central axis L of the rod 32. Thus, when cooling medium is introduced into the evaporator cylinder 4, the first spiral groove 203 on the outer wall of the ice-making cylinder 2 increases the contact area between the cooling medium and the ice-making cylinder 2, and reduces the distance between the cooling medium and the ice-making cavity 201, facilitating the transfer of cold energy into the ice-making cavity 201 and improving ice-making efficiency.

[0046] like Figure 8As shown, another embodiment of this application provides an ice maker 100, including the ice-making device 1 in the above embodiments. The ice maker 100 further includes a housing 20, a refrigeration mechanism 30, and a liquid supply mechanism 40. The ice maker 100, the supply mechanism, and the ice-making device 1 are all mounted on the housing 20. The refrigeration mechanism 30 is connected to the inlet pipe 43 and the outlet pipe 44 of the evaporator 4, respectively, and is used to supply cooling medium to the evaporator 4. The liquid supply mechanism 40 is connected to the liquid supply tank 5 and is used to supply liquid to be frozen to the liquid supply tank 5.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An ice-making device, characterized in that, include: An ice-making cylinder is provided with an ice-making chamber and a first mounting port communicating with the ice-making chamber; The screw includes a spiral scraper and a rod body. The spiral scraper is connected to the rod body, and the rod body is rotatably connected to the first mounting port. The spiral scraper is located inside the ice-making chamber and is used to scrape the ice layer formed inside the ice-making chamber. An evaporator includes a cylinder body and a spiral partition. The cylinder body has a receiving cavity. The spiral partition is disposed in the receiving cavity and sleeved on the ice-making cylinder. The spiral partition extends spirally along the central axis of the rod body. The spiral partition abuts against the outer wall of the ice-making cylinder and forms a spiral channel. The spiral channel is used to constrain the cooling medium to move along a preset path. The outer wall of the ice-making cylinder is provided with a first spiral groove recessed in a direction perpendicular to the central axis of the rod, and the first spiral groove extends spirally along the central axis of the rod.

2. The ice-making apparatus according to claim 1, characterized in that, The lead of the spiral spacer is the same as the lead of the first spiral groove. Along the direction perpendicular to the central axis of the rod, the projection of the spiral spacer is separated from the first spiral groove. And / or, the cross-sectional shape of the first helical groove includes a triangle or an arc.

3. The ice-making apparatus according to claim 1, characterized in that, The cross-sectional shape of the first spiral groove is triangular; The first spiral groove includes a first groove wall surface and a second groove wall surface that are inclined relative to the outer wall surface of the ice maker. The first groove wall surface is closer to the first mounting port than the second groove wall surface. The included angle between the first groove wall surface and the outer wall surface of the ice maker is defined as α, which satisfies 20°≤α≤60°.

4. The ice-making apparatus according to claim 3, characterized in that, The first groove wall and the second groove wall are perpendicular to each other; And / or, define the intersection line of the first groove wall and the second groove wall as the first intersection line, along the direction perpendicular to the central axis of the rod, the vertical distance between the first intersection line and the outer wall of the ice-making cylinder is d1, and the vertical distance between the first intersection line and the inner wall of the ice-making cylinder is d2, satisfying d1≥ 0.2mm or d2≥1mm.

5. The ice-making apparatus according to claim 1, characterized in that, The spiral spacer includes a first surface and a second surface disposed opposite to each other along the central axis of the rod body. The first surface is closer to the first mounting port than the second surface. The first surface extends obliquely from the inner surface of the cylinder body in a direction away from the first mounting port.

6. The ice-making apparatus according to claim 1, characterized in that, In one lead of the spiral spacer, the number of the first spiral grooves is at most three, and at least two of the first spiral grooves are spaced apart along the central axis of the rod and located within the spiral channel.

7. The ice-making apparatus according to claim 1, characterized in that, The ice-making cylinder is provided with a liquid inlet communicating with the ice-making chamber, and the liquid inlet is located at one end of the ice-making cylinder near the first mounting port; The ice-making device also includes a liquid supply tank, which is fitted onto the outer wall of the ice-making cylinder and is connected to the liquid inlet.

8. The ice-making apparatus according to claim 7, characterized in that, The cylinder body includes an outer wall and a bottom wall. One end of the outer wall is connected to the bottom wall, and the other end of the outer wall is open and abuts against the wall of the liquid supply tank to close the receiving cavity.

9. The ice-making apparatus according to any one of claims 1-8, characterized in that, The ice-making device further includes a cylinder cover, which is detachably connected to the ice-making cylinder and covers the ice-making cavity. The cylinder cover is provided with a second mounting port and multiple ice outlets. The multiple ice outlets are arranged around the second mounting port. The second mounting port is connected to the end of the rod body opposite to the first mounting port. And / or, the rod body is provided with a drainage channel and a plurality of drainage ports spaced apart along the central axis of the rod body, and the plurality of drainage ports are respectively connected to the drainage channel and the ice-making chamber, wherein the drainage channel is configured to be recessed by a predetermined distance from the end of the rod body away from the first mounting port toward the first mounting port.

10. An ice maker, characterized in that, Includes the ice-making apparatus as described in any one of claims 1-9.

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