An ice-making device for a coffee machine

Abstract

This invention discloses an ice-making device for a coffee machine, including a coffee machine body, an ice-making mechanism, and an air-blowing mechanism. The coffee machine body has a coffee outlet; the ice-making mechanism is disposed in an ice-making box inside the coffee machine body, the ice-making box having multiple ice-making slots with downward-facing openings, and air holes at the top of the ice-making slots; the air-blowing mechanism is disposed on the upper side of the ice-making box, and the air-blowing mechanism includes a pipe bracket. The air-blowing mechanism, through an air-blowing pipe and an auxiliary pipe surrounding the air-blowing pipe, achieves precise heating and hot air blowing in the air hole area, solving the problem of water splashing onto and freezing around the air holes, thus blocking them. During the de-icing stage, high-temperature hot air blows directly into the air holes through the air outlet of the air-blowing pipe, while the auxiliary pipe conducts heat to the ice-making slot walls around the air holes, quickly melting the ice adhering around the air holes and ensuring unobstructed airflow; the hot air enters the interior of the ice-making slot through the unobstructed air holes, assisting in the separation of the ice from the inside, achieving efficient ice removal.

Description

Technical Field

[0001] This invention relates to the field of ice-making equipment technology, and more particularly to an ice-making device for a coffee machine. Background Technology

[0002] Currently, ice-making devices for coffee machines mainly employ various methods such as spray ice making, flowing water ice making, and immersion ice making. Among these, spray ice making has become the mainstream application solution in this field due to its fast ice-making speed, uniform ice block formation, minimal ice slag formation, and ability to produce hard, crystal-clear ice blocks, meeting the quality requirements of mid-to-high-end coffee machine ice making. Its core working principle is as follows: water is sprayed upwards in the form of fine streams into a low-temperature tank through a spray device. The water quickly condenses in the low-temperature environment of the tank. After the ice block is fully formed, an ice-removing mechanism completes the ice removal operation, thereby achieving continuous ice-making operation.

[0003] In existing spray ice-making technology, to address the problem of ice blocks forming negative pressure due to excessive adhesion to the inner wall of the cryogenic tank after freezing, which makes de-icing difficult, the industry generally installs air vents at the top of the cryogenic tank. The core function of these air vents is to expel air from the tank during the ice-making and de-icing process, balance the air pressure inside and outside the tank, break the negative pressure adsorption state between the ice blocks and the tank, and thus assist in completing the de-icing process.

[0004] However, when the spray device sprays water upwards, the water flow can easily splash through the air holes to the upper area of ​​the low-temperature tank; when the evaporator continues to cool and make ice, the residual water splashed into this area will freeze quickly, forming an ice layer that blocks the air holes; during the de-icing stage, the ice layer at the air holes melts slowly, which also prolongs the ice-making cycle and reduces the overall ice-making efficiency. Summary of the Invention

[0005] The purpose of this invention is to solve the problem mentioned in the background art above, where the ice layer at the pores melts slowly during the de-icing stage, which also prolongs the ice-making cycle and reduces the overall ice-making efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An ice-making device for a coffee machine includes a coffee machine body, an ice-making mechanism, and an air-blowing mechanism. The coffee machine body has a coffee outlet. The ice-making mechanism is disposed in an ice-making box inside the coffee machine body. The ice-making box has multiple ice-making slots with downward-facing openings. Air holes are provided at the top of the ice-making slots. The air-blowing mechanism is disposed on the upper side of the ice-making box. The air-blowing mechanism includes a pipe frame. Air-blowing pipes corresponding to the air holes are connected to the pipe frame. A hot air input section for supplying hot air to the air-blowing pipes is connected to the pipe frame.

[0007] Preferably, the blowing mechanism further includes auxiliary components, which include a plurality of auxiliary tubes arranged around each blowing tube, the upper side of the auxiliary tubes communicating with the blowing tubes, and the lower end of the auxiliary tubes contacting the ice-making tank.

[0008] Preferably, the plurality of auxiliary tubes are fixedly connected by an auxiliary plate, the air blowing tube is disposed through the auxiliary plate, and a spring is sleeved on the air blowing tube, with the two ends of the spring connected to the auxiliary plate and the air blowing tube respectively.

[0009] Preferably, the air blowing pipe is connected to a connecting pipe, the lower end of the connecting pipe extends into the auxiliary pipe and is slidably connected to the auxiliary pipe, and the upper end of the connecting pipe extends into the air blowing pipe and is fixedly connected to the air blowing pipe.

[0010] Preferably, the air blowing pipe has a guide portion inside, the guide portion having an upward-opening receiving cavity, and the upper end of the connecting pipe is connected to the receiving cavity of the guide portion.

[0011] Preferably, a guide cone is fixed to the inner bottom of the guide portion, and the tip of the guide cone is set upward.

[0012] Preferably, the bottom of the auxiliary tube has a sealing plate, and an air outlet is provided on the side of the auxiliary tube facing the air blowing tube, and the air outlet is connected to the inside of the auxiliary tube.

[0013] Preferably, the auxiliary pipe near the center of the ice-making tank has multiple downward-sloping air outlets, and a baffle plate is provided on the outside of the auxiliary pipe to block the air outlets. The upper end of the baffle plate is fixedly connected to the connecting pipe.

[0014] Preferably, a connecting strip is fixed to the lower side of the auxiliary plate, and a truncated cone located inside the air blowing pipe is fixed on the connecting strip. The air blowing pipe has a through groove for the truncated cone to rise and fall. The length of the part of the connecting strip that contacts the air blowing pipe is less than the length of the through groove. The lower side of the connecting strip has an extension. A connecting plate is fixed to the bottom of the air blowing pipe. The connecting plate has an air outlet. The upper side of the air outlet has a conical hole adapted to the truncated cone. A cone is fixed to the upper side of the truncated cone.

[0015] Preferably, the hot air input component includes an input pipe, a heating pipe is fixed inside the input pipe, an air pump is fixed at the lower end of the input pipe, an air inlet of the air pump is connected to a filter screen, and a telescopic corrugated pipe is fixed at the upper end of the input pipe, the upper end of the telescopic corrugated pipe being connected to the input end of the pipe rack.

[0016] Compared with the prior art, the present invention has the following beneficial effects: By employing a design where each air-blowing mechanism corresponds to an air hole in the ice-making tank, along with auxiliary pipes surrounding the air-blowing pipes, precise heating and hot air blowing are achieved in the air hole area. This solves the problem of water splashing onto the air holes and freezing, thus blocking them. During the de-icing stage, high-temperature hot air blows directly into the air holes through the air outlets of the air-blowing pipes. Simultaneously, the auxiliary pipes conduct heat to the walls of the ice-making tank around the air holes, quickly melting the ice adhering to the air holes and ensuring unobstructed airflow. Furthermore, with the air outlets on the auxiliary pipes exposed, hot air blows directly towards the top of the ice-making tank, accelerating the melting of the ice at the contact point with the tank walls. At the same time, the hot air enters the interior of the ice-making tank through the unobstructed air holes, assisting in the separation of the ice from the inside, achieving efficient ice removal.

[0017] Through the coordination of the guide section, guide cone, and connecting pipe, hot air is diverted, allowing it to be efficiently delivered to the blowing pipe and auxiliary pipe, avoiding waste. Simultaneously, the control unit adjusts the heating power of the heating element and the output airflow of the blowing pump according to the needs of different stages of ice making and de-icing, achieving dynamic matching of hot air temperature and airflow. During the ice making stage, the blowing pipe and auxiliary pipe are kept away from the ice-making tank, and the hot air input components are kept in a warm standby state, preventing the blowing pipe and auxiliary pipe from becoming too cold and facilitating subsequent heating of the ice-making tank. During the de-icing stage, high-temperature, high-volume hot air is switched to provide sufficient heat support for de-icing, ensuring effective de-icing.

[0018] The connection strip, the cone, and the air pipe through-slot and cone-shaped hole work together to achieve automatic switching of the hot air outlet during the ice-making and de-icing stages. During ice making, the hot air flows out from the upper side of the through-slot to avoid interfering with ice making. During de-icing, the through-slot is closed and the air outlet is opened to ensure that all the hot air acts on the de-icing area. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the coffee machine body of the present invention.

[0022] Figure 3 This is a partial schematic diagram of the ice-making mechanism of the present invention.

[0023] Figure 4 This is a schematic diagram of the ice-making box and ice-making tank of the present invention.

[0024] Figure 5 This is a schematic diagram of the vent and pipe frame of the present invention.

[0025] Figure 6 This is a schematic diagram of the outflow hole of the present invention.

[0026] Figure 7 This is a schematic diagram of the hot air input component of the present invention.

[0027] Figure 8 This is a schematic diagram showing the contact between the auxiliary tube and the ice-making tank of the present invention.

[0028] Figure 9 This is a schematic diagram of the auxiliary components of the present invention.

[0029] Figure 10 This is a schematic diagram of the connecting plate and sealing plate of the present invention.

[0030] Figure 11 This is a schematic diagram of the air outlet of the present invention.

[0031] Figure 12 This is a schematic diagram of the frustum of the present invention.

[0032] Figure 13 This is a schematic diagram of the air outlet and conical hole of the present invention.

[0033] Drawing Number Explanation: 1. Coffee machine body; 11. Coffee outlet; 2. Ice making mechanism; 21. Ice container; 22. Ice trough; 23. Air vent; 24. Evaporator; 25. Outlet; 26. Support box; 3. Air blowing mechanism; 31. Tube rack; 311. Horizontal plate; 32. Air blowing pipe; 321. Through groove; 322. Connecting plate; 323. Air outlet; 324. Conical hole; 33. Hot air input component; 331. Input pipe; 332 333. Heating element; 334. Air pump; 335. Filter screen; 336. Telescopic corrugated pipe; 347. Auxiliary component; 348. Auxiliary pipe; 349. Auxiliary plate; 340. Spring; 341. Connecting pipe; 342. Sealing plate; 343. Air outlet pipe; 344. Air outlet hole; 35. Baffle plate; 36. Guide part; 37. Guide cone; 38. Connecting strip; 39. Extension part; 30. Frustum; 31. Cone; 32. Cone body; 333. Electric cylinder. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0036] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0037] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0038] Please see Figures 1-3 An ice-making device for a coffee machine includes a coffee machine body 1, an ice-making mechanism 2, and an air-blowing mechanism 3. The coffee machine body 1 has a coffee outlet 11; the ice-making mechanism 2 is disposed in an ice-making box 21 inside the coffee machine body 1, the ice-making box 21 has multiple ice-making slots 22 with downward openings, the top of the ice-making slots 22 has an air hole 23, and the top of the ice-making slots 22 is connected to an evaporator 24. The freezing of the refrigerated water and the defrosting of the heated water in the evaporator 24 are existing technologies. Two obliquely symmetrical air holes 23 are opened on one ice-making slot 22. The ice-making box 21 has an outlet hole 25, from which unfrozen and melted water flows out and falls into an ice storage box below. The ice-making mechanism 2 also includes a support box 26, in which the ice-making box 21 is installed. The support box 26 contains an ice storage box and an auger component for dispensing ice, and the ice storage box is located below the ice-making box 21. The coffee machine body 1 contains a control unit, which is the core control module of the coffee machine. It is used to receive instructions, collect sensor signals, perform logical operations and drive the actuator to realize the automation and precise control of the entire coffee making process. This is a mature existing technology. The coffee machine body 1 and the ice making mechanism 2 are also existing technologies.

[0039] The blowing mechanism 3 is located on the upper side of the ice box 21. The blowing mechanism 3 includes a pipe frame 31. The pipe frame 31 is connected to a blowing pipe 32 that corresponds to the air hole 23. The blowing pipe 32 is fixedly connected to the pipe frame 31. The pipe frame 31 is connected to a hot air input component 33 for delivering hot air to the blowing pipe 32.

[0040] The air blowing mechanism 3 also includes an auxiliary component 34, which includes a plurality of auxiliary tubes 341 arranged around each air blowing tube 32. Taking four auxiliary tubes 341 as an example, the upper side of the auxiliary tubes 341 is connected to the air blowing tube 32. The auxiliary tubes 341 are hollow tubes that allow hot air to enter and heat the auxiliary tubes 341. The lower end of the auxiliary tubes 341 is in contact with the ice making tank 22. The ice around the air hole 23 melts faster through the auxiliary tubes 341.

[0041] Multiple auxiliary tubes 341 are fixedly connected by an auxiliary plate 342. An air blowing tube 32 is set through the auxiliary plate 342. The auxiliary plate 342 is slidably connected to the air blowing tube 32. A spring 343 is sleeved on the air blowing tube 32. The two ends of the spring 343 are connected to the auxiliary plate 342 and the air blowing tube 32 respectively.

[0042] A connecting tube 344 is connected to the air blowing tube 32. The lower end of the connecting tube 344 extends into the auxiliary tube 341 and is slidably connected to the auxiliary tube 341. The upper end of the connecting tube 344 extends into the air blowing tube 32 and is fixedly connected to the air blowing tube 32.

[0043] The air blowing pipe 32 has a guide section 35 inside. The guide section 35 is located at the center of the air blowing pipe 32, and there is a space for hot air flow between the guide section 35 and the inner wall of the air blowing pipe 32. The guide section 35 has an upward-opening receiving cavity, and the upper end of the connecting pipe 344 is connected to the receiving cavity of the guide section 35.

[0044] A guide cone 36 is fixed to the inner bottom of the guide section 35. The tip of the guide cone 36 is set upward. The guide cone 36 guides the hot air entering the guide section 35 so that it can easily enter the connecting pipe 344.

[0045] The bottom of the auxiliary pipe 341 has a sealing plate 345. An air outlet pipe 346 is provided on the side of the auxiliary pipe 341 facing the air blowing pipe 32. The air outlet pipe 346 is inclined upward and is connected to the inside of the auxiliary pipe 341.

[0046] Multiple downward-sloping air outlets 347 are provided on the auxiliary pipe 341 near the center of the ice-making tank 22. Two of the auxiliary pipes 341 have air outlets 347. A baffle plate 348 is provided on the outside of the auxiliary pipe 341 to block the air outlets 347. The upper end of the baffle plate 348 is fixedly connected to the connecting pipe 344. Hot air is blown from the air outlets 347 to the ice-making tank 22, which is conducive to the detachment of ice.

[0047] A connecting strip 37 is fixed to the lower side of the auxiliary plate 342. There are two connecting strips 37. A cone 38 located inside the air blowing pipe 32 is fixed on the connecting strip 37. The air blowing pipe 32 has a through groove 321 for the cone 38 to rise and fall. The diameter of the cone 38 is smaller than the inner diameter of the air blowing pipe 32, so that hot air can flow downward from the gap between the cone 38 and the inner wall of the air blowing pipe 32. The length of the part of the connecting strip 37 in contact with the air blowing pipe 32 is smaller than the length of the through groove 321, so that the upper side of the through groove 321 is connected to the outside. During the ice making process, the air outlet 323 is closed, and hot air flows out from the upper side of the through groove 321. The lower side of the connecting strip 37 has an extension 371. The bottom of the air blowing pipe 32 is fixed with a connecting plate 322. The connecting plate 322 has an air outlet 323. The extension 371 is used to block the through groove 321 when the auxiliary pipe 341 rises, so that hot air flows out from the air outlet 323. The upper side of the air outlet 323 has a conical hole 324 that is adapted to the truncated cone 38. When the truncated cone 38 contacts the conical hole 324, the spring 343 closes the air outlet 323. The connecting plate 322 supports the truncated cone 38 and, together with the through groove 321 of the air blowing pipe 32, supports the connecting strip 37, thereby supporting the auxiliary plate 342. The upper side of the truncated cone 38 has a cone 381 to facilitate the flow of hot air.

[0048] Furthermore, symmetrical electric cylinders 39 are fixed on the support box 26. The output end of the electric cylinder 39 is fixedly connected to the pipe frame 31 through the horizontal plate 311. The electric cylinder 39 controls the raising and lowering of the auxiliary pipe 341 and the air blowing pipe 32. When making ice, the air blowing pipe 32 and the auxiliary pipe 341 rise away from the ice making tank 22. When de-icing, the air blowing pipe 32 and the auxiliary pipe 341 descend.

[0049] The hot air input component 33 includes an input pipe 331, which is fixed to the support box 26. A heating pipe 332 is fixed inside the input pipe 331 and is electrically connected to the control unit. An air pump 333 is fixed to the lower end of the input pipe 331. The air pump is existing technology. The outlet of the air pump 333 blows air into the input pipe 331. The air pump 333 is electrically connected to the control unit. The air inlet of the air pump 333 is connected to a filter screen 334. Specifically, the filter screen 334 is threadedly connected to the air inlet of the air pump 333. The filter screen 334 is used to filter dust. A telescopic corrugated pipe 335 is fixed to the upper end of the input pipe 331, and the upper end of the telescopic corrugated pipe 335 is connected to the input end of the pipe rack 31. The control unit continuously supplies hot air into the auxiliary pipe 341 and the air blowing pipe 32 through the hot air input component 33. During ice making, the control unit reduces the heating power of the heating element 332 and decreases the output airflow of the air pump 333 to maintain the auxiliary pipe 341 and the air pump 32 at a suitable temperature, preventing the pipe temperature from becoming too low. During de-icing, the control unit increases the heating power of the heating element 332 and increases the output airflow of the air pump 333 to heat the auxiliary pipe 341, facilitating heat transfer to the ice-making tank 22 around the air vent 23; simultaneously, the air pump 32 blows out hot air, thereby improving de-icing efficiency; the hot air flows out from the air outlet 323, the air outlet 347, and the air outlet pipe 346. The control unit's adjustment of the heating power of the heating element 332 and the output airflow of the air pump 333 is existing technology.

[0050] During use, after starting the ice-making program, the control unit immediately issues a command to adjust the heating power of the heating element 332 to a low power level, and at the same time reduce the output airflow of the air pump 333, so that the hot air input component 33 as a whole remains in a warm standby state. This effectively prevents water vapor from condensing and adhering on the surface of the air pipe 32, auxiliary pipe 341, and other pipes and auxiliary components during the ice-making process due to excessively low temperatures, which would affect the subsequent ice-making efficiency and the stability of the device operation.

[0051] Meanwhile, the electric cylinder 39 remains stationary, maintaining the pipe support 31 at its initial high position, ensuring a safe distance between the auxiliary pipe 341 and the ice-making tank 22 on the ice-making box 21, preventing contact between the auxiliary components and the ice-making tank 22, and avoiding interference with the normal ice-making process. Subsequently, water is sprayed into each ice-making tank 22 of the ice-making box 21, and the control unit simultaneously starts the evaporator 24. Through the cooling effect of the evaporator 24, the water in the ice-making tank 22 is cooled and solidified, gradually completing the ice block formation.

[0052] During this ice-making process, the hot air input component 33 continuously supplies low-temperature hot air to the pipe frame 31. The hot air first enters the interior of the pipe frame 31, and after being diverted by the pipe frame 31, it enters the air blowing pipe 32. The hot air entering the air blowing pipe 32 is further divided into two parts. One part flows into the guide part 35 in the center of the air blowing pipe 32, and is guided smoothly into the connecting pipe 344 by the guide cone 36 inside the guide part 35. Then, it is transported by the connecting pipe 344 to the auxiliary pipe 341 surrounding the air blowing pipe 32, and finally slowly blown out from the air outlet pipe 346 on the auxiliary pipe 341. The other part of the hot air continues to flow downward along the gap between the inner wall of the air blowing pipe 32 and the guide part 35, and finally flows out from the upper side of the through groove 321 on the air blowing pipe 32, so as to avoid heat accumulation inside the air blowing pipe 32.

[0053] Once the ice in the ice-making tank 22 is fully formed, the control unit heats the evaporator 24 to enter the de-icing stage. At the same time, the heating power of the heating tube 332 is increased to a high level, and the output air volume of the air pump 333 is increased. This allows the hot air input component 33 to deliver high-temperature hot air to the pipe rack 31, providing sufficient heat support for the de-icing process and ensuring that the ice can be quickly separated from the ice-making tank 22.

[0054] At the same time, the electric cylinder 39 starts and drives the horizontal plate 311 to move downward. The horizontal plate 311 drives the pipe frame 31 to descend synchronously. All components connected to the pipe frame 31, such as the air blowing pipe 32, auxiliary pipe 341, and connecting pipe 344, move down together. The telescopic corrugated pipe 335 connected between the pipe frame 31 and the input pipe 331 is pressed down and shortened accordingly, so as to keep the hot air delivery path unobstructed and avoid hot air leakage due to the movement of the pipe frame 31.

[0055] During the descent of the pipe frame 31, the auxiliary pipe 341 surrounding the air blowing pipe 32 first contacts the area around the air hole 23 of the ice making tank 22 on the ice making box 21. Because the auxiliary pipe 341 has been heated by the high temperature hot air in advance, its heat is quickly conducted to the wall of the ice making tank 22 around the air hole 23, quickly melting the ice blocks stuck around the air hole 23.

[0056] After the auxiliary pipe 341 contacts the ice-making tank 22, it remains stationary due to the support of the ice-making tank 22. The auxiliary plate 342, connecting strip 37, and cone 38, which are fixedly connected to the auxiliary pipe 341, also remain stationary. Meanwhile, the pipe frame 31 continues to drive the air blowing pipe 32 to move downwards. The air blowing pipe 32 drives the connecting pipe 344 and the baffle plate 348 to move downwards simultaneously. At this time, the spring 343 sleeved on the air blowing pipe 32 is compressed, producing elastic deformation. During the descent of the connecting pipe 344, it drives the baffle plate 348 to move downwards simultaneously, and the air outlet 347, which was originally blocked by the baffle plate 348, gradually becomes exposed. The high-temperature hot air that entered the auxiliary pipe 341 flows out simultaneously from the air outlet 347 and the air outlet pipe 346. The hot air blown out of the air outlet 347 blows directly towards the top of the ice-making tank 22, accelerating the melting of the ice at the contact point between the ice and the ice-making tank 22, and further increasing the de-icing speed.

[0057] As the air blowing pipe 32 moves downward, the connecting strip 37 separates from the bottom of the through groove 321 of the air blowing pipe 32. The cone 38, fixedly connected to the connecting strip 37, also separates from the conical hole 324 on the connecting plate 322, thereby opening the air outlet 323 at the bottom of the air blowing pipe 32. Simultaneously, the connecting strip 37 completely seals the through groove 321 on the air blowing pipe 32, preventing high-temperature hot air from flowing out of the through groove 321. Instead, the hot air is blown directly from the air outlet 323 into the air hole 23 area of ​​the ice-making tank 22, further enhancing the melting effect of the ice around the air hole 23 and ensuring that the air hole 23 remains unobstructed. The melted water flows out from the outlet hole 25 and falls into the ice storage box below.

[0058] Once the ice around the vent 23 has completely melted, the high-temperature hot air from the air pipe 32 enters the ice-making tank 22 directly through the vent 23, filling the entire space of the ice-making tank 22 with hot air. This heats the ice from the inside, accelerating the separation of the ice from the inner wall of the ice-making tank 22. Ultimately, the ice falls efficiently and without residue from the ice-making tank 22, and the fallen ice falls into the ice storage box below for collection, ready for subsequent ice production and use.

[0059] After the de-icing process is completed, the system switches back to the ice-making standby state. The control unit reduces the heating power of the heating element 332 and decreases the output airflow of the air pump 333, allowing the hot air input component 33 to return to a warm standby state. This prevents residual heat from affecting the subsequent ice-making effect and reduces the energy consumption of the device. Subsequently, the electric cylinder 39 starts in reverse, driving the horizontal plate 311 to move upward. The horizontal plate 311 drives the pipe frame 31 to rise synchronously until the pipe frame 31 returns to its initial high position. The telescopic corrugated pipe 335 gradually stretches as the pipe frame 31 rises, returning to its natural state and continuing to maintain the hot air delivery path. When the pipe frame 31 returns to its original position, the components on it also return to their original positions.

[0060] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. An ice-making device for a coffee machine, characterized in that, include: The coffee machine body (1) has a coffee outlet (11). An ice-making mechanism (2) is provided in an ice-making box (21) inside the coffee machine body (1). The ice-making box (21) has multiple ice-making slots (22) with downward openings. An air hole (23) is provided on the top of the ice-making slots (22). The blowing mechanism (3) is located on the upper side of the ice box (21). The blowing mechanism (3) includes a pipe frame (31), on which blowing pipes (32) corresponding to air holes (23) are connected. A hot air input component (33) for delivering hot air to the blowing pipes (32) is connected to the pipe frame (31).

2. The ice-making device for a coffee machine according to claim 1, characterized in that: The blowing mechanism (3) also includes an auxiliary component (34), which includes a plurality of auxiliary tubes (341) arranged around each blowing tube (32). The upper side of the auxiliary tubes (341) is connected to the blowing tube (32), and the lower end of the auxiliary tubes (341) is in contact with the ice-making tank (22).

3. The ice-making device for a coffee machine according to claim 2, characterized in that: Multiple auxiliary tubes (341) are fixedly connected by an auxiliary plate (342). The air blowing tube (32) is set through the auxiliary plate (342). A spring (343) is sleeved on the air blowing tube (32). The two ends of the spring (343) are connected to the auxiliary plate (342) and the air blowing tube (32) respectively.

4. The ice-making device for a coffee machine according to claim 3, characterized in that: The air blowing pipe (32) is connected to a connecting pipe (344). The lower end of the connecting pipe (344) extends into the auxiliary pipe (341) and is slidably connected to the auxiliary pipe (341). The upper end of the connecting pipe (344) extends into the air blowing pipe (32) and is fixedly connected to the air blowing pipe (32).

5. The ice-making device for a coffee machine according to claim 4, characterized in that: The air blowing pipe (32) has a guide part (35) inside, the guide part (35) has an upward-opening receiving cavity, and the upper end of the connecting pipe (344) is connected to the receiving cavity of the guide part (35).

6. The ice-making device for a coffee machine according to claim 5, characterized in that: The guide cone (36) is fixed to the inner bottom of the guide part (35), and the tip of the guide cone (36) is set upward.

7. The ice-making device for a coffee machine according to claim 6, characterized in that: The bottom of the auxiliary tube (341) has a sealing plate (345), and an air outlet pipe (346) is provided on the side of the auxiliary tube (341) facing the air blowing pipe (32), and the air outlet pipe (346) is connected to the inside of the auxiliary tube (341).

8. The ice-making device for a coffee machine according to claim 7, characterized in that: The auxiliary pipe (341) near the center of the ice-making tank (22) has multiple downward-sloping air outlets (347). A shield (348) is provided on the outside of the auxiliary pipe (341) to block the air outlets (347). The upper end of the shield (348) is fixedly connected to the connecting pipe (344).

9. The ice-making device for a coffee machine according to claim 3, characterized in that: A connecting strip (37) is fixed to the lower side of the auxiliary plate (342). A cone (38) located inside the air blowing pipe (32) is fixed on the connecting strip (37). A through groove (321) for the cone (38) to rise and fall is provided on the air blowing pipe (32). The length of the part of the connecting strip (37) in contact with the air blowing pipe (32) is less than the length of the through groove (321). An extension (371) is provided on the lower side of the connecting strip (37). A connecting plate (322) is fixed to the bottom of the air blowing pipe (32). An air outlet (323) is provided on the connecting plate (322). A conical hole (324) for the cone (38) is provided on the upper side of the air outlet (323). A cone (381) is fixed on the upper side of the cone (38).

10. The ice-making device for a coffee machine according to claim 1, characterized in that: The hot air input component (33) includes an input pipe (331), a heating pipe (332) is fixed inside the input pipe (331), an air pump (333) is fixed at the lower end of the input pipe (331), the air inlet of the air pump (333) is connected to a filter screen (334), and a telescopic corrugated pipe (335) is fixed at the upper end of the input pipe (331). The upper end of the telescopic corrugated pipe (335) is connected to the input end of the pipe rack (31).

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