Frozen beverage maker

Abstract

The utility model provides a frozen beverage making machine. The frozen beverage making machine comprises a mixing container; the evaporator is arranged in the mixing container, the evaporator comprises an ice making barrel and a refrigeration pipe, the refrigeration pipe is coiled in the ice making barrel, the refrigeration pipe is arranged between the expansion piece and the ice making barrel, and the refrigeration pipe is tightly attached to the ice making barrel and the expansion piece; the stirrer is used for scraping solid bodies formed by condensation on the outer side wall of the ice making barrel; the power device is arranged on the stirrer in a pivoted mode, the power device comprises a motor and a transmission shaft connected with the motor in a pivoted mode, and a speed reducing part is connected between the motor and the transmission shaft in a pivoted mode. The abutting piece can tightly abut against the expansion piece in the radial direction, the abutting piece and the expansion piece are relatively fixed in an interference fit mode, the outer side wall of the expansion piece can tightly abut against the refrigeration pipe, and under the action of external force factors and the like, it is always guaranteed that the attaching pipe face of the refrigeration pipe is tightly attached to the inner side wall of the ice making barrel.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of household appliances, in particular to a frozen beverage manufacturing machine. BACKGROUND

[0002] The frozen beverage manufacturing machine has a mixing container for storing liquid, and the liquid in the mixing container is changed into solid body, such as slush, ice cream, etc., after being processed by the refrigeration of the ice-making cylinder, and then the processed solid body is distributed to the user. The refrigeration performance of the ice-making cylinder is one of the important parameters of the frozen beverage manufacturing machine. The refrigeration efficiency of the ice-making cylinder on the market cannot meet the ideal demand. For example, the refrigeration pipe with a spiral disc structure has a certain elasticity, and after the expansion jig is withdrawn, it is inevitable to have a slight rebound phenomenon. In addition, under the influence of factors such as scraping action and vibration of the machine, the refrigeration pipe appears loose. In the case of the above-mentioned disadvantages, the conduction efficiency of the refrigeration pipe is inevitably affected. Therefore, improving the conduction efficiency of the refrigerant to the ice-making cylinder is a technical problem that needs to be solved at present. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the present utility model provides a frozen beverage manufacturing machine, which realizes the requirements of high refrigeration conduction efficiency and high ice-making cylinder refrigeration performance.

[0004] The present utility model realizes the following technical scheme:

[0005] A frozen beverage manufacturing machine comprises:

[0006] a mixing container;

[0007] an evaporator configured in the mixing container, the evaporator comprising an ice-making cylinder and a refrigeration pipe, the refrigeration pipe being arranged in the interior of the ice-making cylinder,

[0008] an expansion member, the refrigeration pipe being arranged between the expansion member and the ice-making cylinder, and the refrigeration pipe being tightly attached to the ice-making cylinder and the expansion member respectively;

[0009] a stirrer rotatably arranged on the ice-making cylinder to scrape off the solid body condensed on the outer sidewall of the ice-making cylinder;

[0010] a power device pivotally arranged on the stirrer, the power device comprising a motor, a transmission shaft pivotally connected to the motor, and a speed reducer pivotally connected between the motor and the transmission shaft.

[0011] Further, the refrigeration pipe has a pipe surface closely adhering to the inner wall of the ice making cylinder, and in the axial direction of the ice making cylinder, the cross section of the refrigeration pipe is a refrigeration cross section, the cross section of the closely adhering pipe surface is a closely adhering cross section, and the ratio of the length of the closely adhering cross section to the maximum length of the refrigeration cross section is greater than or equal to 3 / 4.

[0012] Further, the length of the refrigeration cross section extends along the axial direction of the ice making cylinder.

[0013] Further, in the axial direction of the ice making cylinder, the refrigeration cross section is rectangular, and the connection of the adjacent two sides of the refrigeration cross section is formed with a rounded corner.

[0014] Further, in the axial direction of the ice making cylinder, the refrigeration cross section is in the shape of a runway, and the straight line segment of the refrigeration cross section closely adheres to the inner wall of the ice making cylinder.

[0015] Further, in the axial direction of the ice making cylinder, the refrigeration cross section is in the shape of a D, and the straight line segment of the refrigeration cross section closely adheres to the inner wall of the ice making cylinder.

[0016] Further, it further comprises a capillary tube and a transmission pipe communicating with the opposite ends of the refrigeration pipe, and the cooling medium for absorbing heat from the ice making cylinder to form the solid body flows in the capillary tube, the refrigeration pipe and the transmission pipe in sequence.

[0017] Further, the transmission pipe is integrally formed with the refrigeration pipe, and the connection of the transmission pipe and the refrigeration pipe is twisted to form a bent segment.

[0018] Further, in the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission pipe is a transmission cross section, the circumference of the transmission cross section is equal to the circumference of the refrigeration cross section, the maximum width of the transmission cross section is D1, the maximum length of the transmission cross section is L1, the maximum width of the refrigeration cross section is D2, the maximum length of the refrigeration cross section is L2, D1>D2, and L1

[0019] Further, in the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission pipe is in the shape of a hollow circular ring.

[0020] Further, the capillary tube is bent and arranged in the cavity formed by the refrigeration pipe, and the capillary tube and the transmission pipe are led out on the same side of the ice making cylinder.

[0021] Further, the bent shape of the corresponding part of the capillary tube and the transmission pipe is adapted to the bent shape of the transmission pipe.

[0022] Further, part of the structure of the capillary tube is arranged in the transmission pipe.

[0023] Further, at least one buckle is included, and the capillary tube is fixed to the transmission pipe through the buckle.

[0024] Further, an expansion member is included, and the refrigeration pipe is arranged between the expansion member and the ice making cylinder, and the refrigeration pipe is tightly attached to the ice making cylinder and the expansion member after the expansion member expands along the radial direction of the ice making cylinder.

[0025] Further, the expansion member extends along the axial direction of the ice making cylinder and is coaxially arranged with the ice making cylinder.

[0026] Further, a pressing member is included, and the pressing member is arranged at opposite ends of the expansion member along the axial direction of the ice making cylinder, and the pressing member abuts against the expansion member and limits the displacement of the expansion member along the radial direction of the ice making cylinder.

[0027] Further, the end of the pressing member towards the expansion member has a pressing slope, the expansion member has an expansion slope corresponding to the pressing slope, and the fitting area between the pressing slope and the expansion slope gradually increases during the movement of the pressing member towards the expansion member.

[0028] Further, the expansion member is a circular ring-shaped cylinder, and a notch is arranged on the expansion member, and the notch extends from the first end of the expansion member to the second end of the expansion member along the axial direction of the ice making cylinder.

[0029] Further, the power device includes a motor and a transmission shaft pivotally connected to the motor, the free end of the transmission shaft penetrates the cavity of the ice making cylinder and extends into the mixing container, and the free end of the transmission shaft is connected to the stirrer.

[0030] Further, a bearing member is included, and the bearing member is arranged on the side close to the free end of the transmission shaft and located in the cavity of the ice making cylinder.

[0031] Further, the ice making cylinder has an end face on one side of the mixing container, and the bearing member is arranged on the end face.

[0032] Further, the end face is buckle-connected with the ice making cylinder, or the end face is integrally formed with the ice making cylinder.

[0033] Further, a through hole is arranged on the end face, and the free end of the transmission shaft penetrates the through hole and is located in the mixing container.

[0034] Further, a sealing member is included, and the sealing member is arranged at the through hole and seals against the transmission shaft.

[0035] Further, the stirrer comprises a scraping part and a pushing part, the scraping part is attached to the outer sidewall of the ice making cylinder to scrape the solid body condensed, and the pushing part pushes the scraped solid body forward during rotation.

[0036] Further, the scraping part is linear and extends along the axial direction of the ice making cylinder, and the pushing part is spirally arranged along the axial direction of the ice making cylinder and extends to the outside of the ice making cylinder.

[0037] Further, a rubber strip is arranged on the scraping part, and the rubber strip abuts against the outer sidewall of the ice making cylinder.

[0038] Further, the rubber strip is shaped to fit the scraping part, and the rubber strip and the outer sidewall of the ice making cylinder are in interference fit.

[0039] Compared with the prior art, the advantages of the utility model lie in that the pressing part can tightly press the expanding part in the radial direction, the two are relatively fixed in interference fit, and thus the outer sidewall of the expanding part can tightly press the refrigeration pipe, and the pipe surface of the refrigeration pipe is always tightly attached to the inner sidewall of the ice making cylinder under the action of external force and the like. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 The structure schematic view of the frozen beverage manufacturing machine provided by an embodiment of the utility model is shown;

[0041] Figure 2 The sectional view of the ice making cylinder in the evaporator is shown; Figure 1

[0042] Figure 3 The structure schematic view of the ice making cylinder in the evaporator is shown;

[0043] Figure 4 The structure sectional view of the evaporator is shown;

[0044] Figure 5 The local structure sectional view of the refrigeration pipe in the evaporator is shown;

[0045] Figure 6 The local structure schematic view of the refrigeration pipe in the evaporator is shown;

[0046] Figure 7 The structure schematic view of different cross-sectional shapes of the refrigeration pipe in the evaporator is shown;

[0047] Figure 8 The structure schematic view of the evaporator is shown;

[0048] Figure 9 The structure sectional view of the transmission pipe in the evaporator is shown;

[0049] Figure 10 The structure schematic view of the stirrer is shown;​

[0050] Figure 11 Partial sectional view at the bearing part of the power device;

[0051] Figure 12 Structural schematic view at the expansion part;

[0052] Figure 13 Structural schematic view at the expansion part

[0053] Figure 14 Structural schematic view at the expansion part.

[0054] Reference signs:

[0055] 100, mixing container; 1001, feeding port; 1002, discharging port;

[0056] 200, evaporator; 201, ice making cylinder; 202, refrigeration pipe; 2021, pipe surface fit; 2022, cross section fit; 203, capillary tube; 204, transmission pipe; 205, bending section;

[0057] 300, stirrer; 3001, scraping part; 3002, pushing part;

[0058] 400, power device; 401, speed reduction part; 402, transmission shaft; 403, bearing part;

[0059] 500, cold making circulation system;

[0060] 600, machine base;

[0061] 700, expansion part; 701, pressing part; 702, pressing inclined surface; 703, expansion inclined surface; 704, notch. DETAILED DESCRIPTION

[0062] The following detailed, non-limiting description of the utility model's technical solution, in conjunction with preferred embodiments and accompanying drawings, is provided. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0063] like Figures 1 to 14 As shown, one embodiment of this utility model discloses a frozen beverage making machine, including a mixing container 100, an evaporator 200, a stirrer 300, a power unit 400, a refrigeration circulation system 500, and a base 600. The mixing container 100, evaporator 200, stirrer 300, and power unit 400 are mainly concentrated in the upper half of the base 600, while the refrigeration circulation system 500 is arranged in the lower half of the base 600. This creates a layered structure within the base 600, making the distribution of components more compact and fully utilized. This results in a small-sized frozen beverage making machine that occupies minimal space. On the one hand, it allows customers to install the frozen beverage making machine in various living scenarios, and the installation location is largely unrestricted due to these features. On the other hand, it facilitates packaging and transportation, reducing transportation costs for businesses and making it easier for customers to handle.

[0064] Specifically, the mixing container 100 is arranged on the base 600, and the evaporator 200 is arranged in the mixing container 100, so that all solid bodies generated by refrigeration of the evaporator 200 are stored in the mixing container 100. The evaporator 200 includes an ice-making cylinder 201 and a refrigeration pipe 202, and the stirrer 300 is rotatably arranged on the ice-making cylinder 201, and the power device 400 is pivotally arranged on the stirrer 300. The refrigeration pipe 202 is used to communicate with the refrigeration cycle system 500, so that the ice-making cylinder 201 can be refrigerated. In the refrigeration working state, solid bodies are condensed on the outer wall of the ice-making cylinder 201. The power device 400 drives the stirrer 300 to continuously rotate in one direction, so as to scrape off the solid bodies and collect and push the scraped solid bodies forward, so as to continuously transport the solid bodies to the discharge port 1002 of the mixing container 100 for consumption.

[0065] With reference to Figure 1 and Figure 2 The mixing container 100 is used to store the solution poured therein and can also be used to store the solid bodies obtained by condensation of the solution. The mixing container 100 is arranged on the base 600, and the left end of the mixing container extends to the outside of the base 600. The discharge port 1002 is arranged at the left end and located outside the base 600, and the opening of the discharge port 1002 is arranged downward to facilitate the user to receive the material. The right end of the mixing container 100 is provided with a fixing portion to be fixed on the base 600. It is worth noting that the upper side of the mixing container 100 is flush or approximately flush with the upper side of the base 600, and the width of the front and rear sides is equal to or slightly smaller than the base 600, so that the overall appearance of the mixing container 100 is more smooth and has better aesthetics, and the overall structure is compact.

[0066] The mixing container 100 can include a fully transparent wall or a partially transparent wall, so that the user can observe the storage state in the mixing container 100 in real time. Specifically, the mixing container 100 includes a filling port 1001. In a preferred mode, the filling port 1002 is arranged on the upper side wall of the mixing container 100 or adjacent to the upper side wall, so that the solution passing through the filling port 1002 can flow into the cavity of the mixing container 100 completely and smoothly. The upper side wall of the mixing container 100 is recessed to form the filling port 1002, and the through opening of the filling port 1002 is located at the lowest part of the filling port 1002, and the remaining part forms a flow guide portion. During the filling process, the solution is guided to the through opening through the flow guide portion and then flows into the mixing container 100. The receiving area of the flow guide portion is larger than the area of the through opening, which can fully receive the pouring of the liquid and avoid the phenomenon of splashing and bubbles caused by directly pouring into the mixing container 100. The through opening is adaptively arranged according to the requirements, and the operator cannot reach into the mixing container 100 through the through opening to ensure safety.

[0067] With reference toFigure 3 and Figure 4 The ice-making cylinder 201 extends along the left-right direction and is made of stainless steel, has good heat conduction performance, and can quickly condense solid bodies on the outer sidewall thereof during the refrigeration process. The right end of the ice-making cylinder 201 is arranged on the base 600 to maintain the stability thereof. The ice-making cylinder 201 is hollow, and the refrigeration pipe 202 is arranged in the ice-making cylinder 201. The refrigeration pipe 202 is used to connect the refrigeration cycle system 500, so that the ice-making cylinder 201 can be refrigerated.

[0068] With reference to Figure 5 The refrigeration pipe 202 has a close-fitting pipe surface 2021 that closely fits the inner sidewall of the ice-making cylinder 201. It is worth noting that, in the axial direction of the ice-making cylinder 201, the close-fitting pipe surface 2021 can closely fit the ice-making cylinder 201 to the greatest extent, which can first ensure high-efficiency refrigeration of the ice-making cylinder 201 and secondly can keep the refrigeration effect consistent at any position as much as possible, output uniformity and continuous refrigeration characteristics, and optimize the refrigeration efficiency.

[0069] In the present application, in the axial direction of the ice-making cylinder 201, the cross section of the refrigeration pipe 202 is a refrigeration cross section, the cross section of the close-fitting pipe surface 2021 is a close-fitting cross section 2022, the length of the close-fitting cross section 2022 is greater than or equal to 3 / 4 of the maximum length of the refrigeration pipe cross section, the refrigeration pipe is usually a hollow circular pipe or a flat pipe, and is arranged in a coiled manner, and the outer edge has a chamfer structure, so that the refrigeration pipe can only be adaptively extruded to adjust to a flat pipe of a suitable size, thereby improving the length ratio value and achieving high-efficiency, uniformity, and continuous refrigeration characteristics.

[0070] With reference to Figure 6 The length of the refrigeration cross section extends along the axial direction of the ice-making cylinder, saves material costs, and occupies a small radial space and has a compact structure. Specifically, the length of the refrigeration cross section is greater than that of the close-fitting cross section 2022. The close-fitting cross section 2022 is a direct conduction structure in the refrigeration process, and the length of a single close-fitting cross section 2022 is positively proportional to the length of the refrigeration cross section, that is, the length of the close-fitting cross section 2022 is greater than or equal to 3 / 4 of the maximum length of the refrigeration pipe cross section and less than 1. Therefore, in the present application, the length of the refrigeration cross section extends along the axial direction of the ice-making cylinder. In the same perimeter design, the above design can not only ensure high-efficiency refrigeration but also save material costs, occupy a small radial space, and have good comprehensive performance.

[0071] The shape of the refrigeration cross section is affected by the processing technology and can be selected from various shapes, but it is worth noting that the length of the refrigeration cross section is always greater than that of the close-fitting cross section 2022.

[0072] With reference to Figure 7In the embodiments adopted in the present application, see Figure 7 a. In the axis direction of the ice-making cylinder 201, the refrigeration section is approximately rectangular, and the connection between the adjacent two sides of the refrigeration section is formed with a rounded corner. See Figure 7 b. In the axis direction of the ice-making cylinder 201, the refrigeration section is in the shape of a racetrack, the straight line section of the refrigeration section is closely attached to the inner side wall of the ice-making cylinder 201, and the connection between the adjacent two sides of the refrigeration section is formed with a gap. See Figure 7 c. In the axis direction of the ice-making cylinder 201, the refrigeration section is in the shape of a D, the straight line section of the refrigeration section is closely attached to the inner side wall of the ice-making cylinder, and the connection between the adjacent two sides of the refrigeration section is still formed with a gap.

[0073] In the above structure, there is a gap between the two adjacent pipe surfaces 2021 formed on the refrigeration section, and the size of the gap directly affects the ratio between the length of the fitting section 2022 and the length of the refrigeration section, which affects the refrigeration efficiency of the evaporator.

[0074] Since the refrigeration pipe 202 is installed in the cavity of the ice-making cylinder 201, the force is limited, and it is difficult to operate the force applied to the refrigeration pipe 202; and the refrigeration pipe 202 is installed in the cavity of the ice-making cylinder 201 after being arranged, and the refrigeration pipe 202 has a certain elasticity, and there is a risk of slight deformation during installation, which will affect the refrigeration efficiency of the evaporator.

[0075] In the present application, a diameter expansion process is added to meet the demand for high-efficiency refrigeration of the evaporator. Specifically, taking the refrigeration section in the shape of an approximate rectangle as an example, the refrigeration pipe 202 is first installed in the cavity of the ice-making cylinder 201, and then an appropriate diameter expansion tool is arranged in the inner space of the refrigeration pipe 202. The diameter expansion tool is in circumferential abutment with the inner side wall of the refrigeration pipe 202 and applies an outward radial force to the inner side wall of the refrigeration pipe 202, so that the outer side wall of the refrigeration pipe 202 is closely attached to the inner side wall of the ice-making cylinder 201. The refrigeration pipe 202 can be slightly deformed, on the one hand, to reduce the size of the rounded corner structure, expand the contact area between the fitting section and the ice-making cylinder 201 in the axis direction, and on the other hand, to compensate for the concave part on the surface of the pipe surface 2021 during processing and installation, so that the contact area between the pipe surface 2021 and the ice-making cylinder 201 is uniform and continuous.

[0076] Referring to Figures 12 to 14 The refrigerated beverage maker of the present application also includes an expansion member 700 for expanding the diameter of the refrigeration pipe 202 to closely attach the refrigeration pipe 202 to the ice-making cylinder 201. It is worth noting that the above of the present application also adopts a diameter expansion process, but the present application is not limited to this diameter expansion process with the expansion member 700 structure.

[0077] The refrigeration pipe 202 mentioned above adopts a spiral disc structure and has a certain elasticity. After the expansion jig is withdrawn, slight rebound phenomenon will inevitably occur. In addition, under the influence of factors such as long-term scraping action of the stirrer 300 on the ice making cylinder 201 and vibrator, the refrigeration pipe 202 will also loosen without structural limiting. In the presence of the above-mentioned drawbacks, the bonding area of the refrigeration pipe 202 and the ice making cylinder 201 will be inevitably affected. The expansion piece 700 described above can effectively solve the above-mentioned drawbacks.

[0078] Specifically, the refrigeration pipe 202 is arranged between the expansion piece 700 and the ice making cylinder 201. The expansion piece 700 extends in the axial direction of the ice making cylinder 201 and is coaxially arranged with the ice making cylinder 201. The extension length is approximately equal to or equal to the length of the refrigeration pipe 202, so that the refrigeration pipe 201 can be optimally radially expanded. The expanded refrigeration pipe 202 can be closely bonded with the ice making cylinder 201 to increase the bonding area between the refrigeration pipe 202 and the ice making cylinder 201, so as to ensure the high efficiency of the ice making cylinder 201, and to ensure the consistency of the refrigeration effect at any position as much as possible, to ensure the uniformity and continuity of the refrigeration, and to optimize the refrigeration efficiency.

[0079] With reference to Figure 12 The refrigerated beverage maker also includes a pressing piece 701 for limiting the displacement of the expansion piece 700 in the radial direction. Specifically, the pressing piece 701 is arranged at opposite ends of the expansion piece 700 in the axial direction of the ice making cylinder 201 and is used to press the expansion piece 700. Specifically, the end of the pressing piece 701 towards the expansion piece 700 has a pressing slope 702. In one way, the expansion piece 700 correspondingly has an expansion slope 703. In actual operation, during or after the expansion piece 700 expands the refrigeration pipe 202, the pressing piece 701 can move towards the expansion piece 700, so that the bonding area of the pressing slope 702 and the expansion slope 703 gradually increases, until the pressing piece 701 can tightly press the expansion piece 700 in the radial direction, and the two are relatively fixed in the form of interference fit, so that the outer wall of the expansion piece 700 can tightly press the refrigeration pipe 202, and under the action of external factors, the bonded pipe surface 2021 of the refrigeration pipe 202 is always closely bonded with the inner wall of the ice making cylinder 201.

[0080] With reference to Figure 12 and Figure 14In an implementation manner, the expanding member 700 is a circular ring cylinder, and the expanding member 700 is provided with a notch 704 extending from the first end of the expanding member 700 to the second end of the expanding member 700 in the axial direction of the ice making cylinder 201. In the process of expanding the diameter, the diameter of the expanding member gradually increases, and the opening amount of the notch gradually increases by using the design of the notch, so as to compensate the change of the diameter and ensure the effective completion of the expanding process.

[0081] With reference to Figure 12 and Figure 13 The expanding member 700 and the pressing member 701 are arranged in the cavity of the ice making cylinder 201 from one end of the ice making cylinder 201. The left pressing member 701 is first arranged in the cavity of the ice making cylinder 201, and preferably, the end portion of the pressing member 701 is provided with a cavity matched with the bearing seat. Then, the positioning accuracy of the installation position can be ensured by using the limiting of the stepped portion, and in particular, the axis of the pressing member 701 after installation can be ensured to coincide with the axis of the ice making cylinder 201. Then, the expanding member 700 is arranged in the cavity of the ice making cylinder 201, and it is worth noting that the expanding member 700 is arranged by using the clearance fit, and the outer side wall of the expanding member 700 does not contact the refrigeration pipe 202. Finally, the right pressing member 701 is arranged in the ice making cylinder 201. In the process of arranging the right pressing member 701, the axial two ends of the expanding member 700 are guided to move obliquely upward by the pressing inclined surface 701, and the diameter of the expanding member 700 is gradually expanded, so as to press and tightly fit the inner side wall of the refrigeration pipe 202, until the expanding action of the refrigeration pipe 202 is completed, and the pipe surface 2021 of the refrigeration pipe 202 is more preferably ensured to tightly fit the inner side wall of the ice making cylinder 201.

[0082] With reference to Figure 7 b, in the axial direction of the ice making cylinder 201, the refrigeration section is in a runway shape, and the straight line section of the refrigeration section tightly fits the inner side wall of the ice making cylinder 201. Specifically, the runway-shaped refrigeration section has a straight line section and a curved section, and the straight line section on one side forms the fitting section 2021. The curved sections of two adjacent refrigeration sections correspondingly contact, the bending curvature of the curved section is greater than the bending curvature of the rounded corner, the gap length between the two adjacent fitting sections 2022 is greater, and thus the refrigeration efficiency obtained by the runway-shaped structure design of this embodiment is improved to a certain extent while meeting the requirements.

[0083] With reference to Figure 7c, in the axial direction of the ice-making cylinder 201, the refrigeration section is in the shape of D, and the straight line section of the refrigeration section is closely attached to the inner side wall of the ice-making cylinder 201. In this way, the initial shape of the refrigeration pipe 202 can be a circular pipe, and then it is formed into a D shape through a pressing process. This pressing process needs to be assisted by external equipment, so it needs to be selected before the refrigeration pipe 202 is arranged in the ice-making cylinder. This way not only involves the pressing process, but also the arrangement process, so the steps are more complex, and the shape will change when arranged in the ice-making cylinder 201. Because it will cause the gap between the two adjacent attached sections 2022 to be relatively large, the refrigeration efficiency of the D-shaped structure design of this embodiment is improved to some extent while meeting the requirements.

[0084] Referring to Figure 2 and Figure 8 , the evaporator 200 further comprises a capillary tube 203 and a transmission pipe 204 connected to opposite ends of the refrigeration pipe 202, and the capillary tube 203, the refrigeration pipe 202 and the transmission pipe 204 sequentially flow with cooling medium that absorbs heat from the ice-making cylinder 201 to form a solid body.

[0085] The transmission pipe 204 is integrally formed with the refrigeration pipe 202, and the connection between the transmission pipe 204 and the refrigeration pipe 202 is twisted to form a bending section 205. Starting from the bending section 205, the transmission pipe 204 can extend to the lower half of the base 600 to connect the cold-making circulating system 500 arranged in the cavity of the base 600, reasonably allocate installation space, and have a compact structure. Similarly, the capillary tube 203 is bent and arranged in the cavity formed by the refrigeration pipe 202, and the capillary tube 203 and the transmission pipe 204 are led out on the same side of the ice-making cylinder 201. The bent capillary tube 203 can also extend to the lower half of the base 600 to connect the cold-making circulating system 500 arranged in the cavity of the base 600, reasonably allocate installation space, and have a compact structure.

[0086] It is worth noting that based on the high and low pressure transmission of the cold-making circulating system 500, the radial size of the capillary tube 203 is selected to be smaller than the radial size of the transmission pipe 204, so the capillary tube 203 is arranged away from the fixed end of the ice-making cylinder 201. On the one hand, the smaller size is easier to bend in the process, and the process is simple to operate; on the other hand, since the capillary tube 203 needs to cross the refrigeration pipe 202 in the axial direction, the required design length is longer, and the selection of small size can also save the cost of material investment.

[0087] Referring to Figure 9, it is worth noting that in the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission pipe 204 is a transmission section, the circumference of the transmission section is equal to the circumference of the refrigeration section; the maximum width of the transmission section is D1, the maximum length of the transmission section is L1; the maximum width of the refrigeration section is D2, the maximum length of the refrigeration section is L2; D1>D2, L1

[0088] Wherein, the structure of the capillary tube 203 outside the cavity of the refrigeration pipe 202 is correspondingly arranged with the transmission pipe 204, it is worth noting that the bending shape of the capillary tube 203 is adaptively arranged with the bending shape of the transmission pipe 204, aiming at better fitting the capillary tube 203 to the transmission pipe 204, and fixing the capillary tube 203 on the transmission pipe 204 through the buckle. Due to the length or other factors, part of the structure of the capillary tube 203 is threaded and arranged on the outer side wall of the transmission pipe 204.

[0089] Referring to Figure 2 And Figure 10 The stirrer 300 is rotatably arranged on the ice making cylinder 201, for pushing the condensed solid body from right to left to the discharge port 1002. An installation space is formed between the lower side of the ice making cylinder 201 and the lower side wall of the mixing container 100, so as to facilitate the sleeving of the stirrer 300 on the ice making cylinder 201. The stirrer 300 has a straight scraping part 3001 and a spiral pushing part 3002, the scraping part 3001 is used to scrape off the solid body condensed on the outside of the ice making cylinder 201, and the pushing part 3002 is used to collect and push the scraped solid body from right to left.

[0090] Referring to Figure 2 The power device 400 is arranged inside the machine base 600, and the output end of the power device 400 is pivotally arranged on the stirrer 300 to drive the stirrer 300 to continuously rotate. The power device is selected as a motor, and the output end of the motor is provided with a speed reducer 401. The speed reducer 401 reduces the output speed through the speed ratio, and it needs a large installation space. By arranging the speed reducer 401 on the side wall of the machine base 600, a speed reducer 401 with a large speed ratio can be arranged by using the upper and lower structure, which can effectively utilize the space of the machine base 600.

[0091] The power device 400 further comprises a transmission shaft 402 for transmitting the output power of the motor to the stirrer 300 to drive the stirrer 300 to rotate. The transmission shaft 402 extends along the axis direction of the ice making cylinder 201, the input end of the transmission shaft 402 is pivotally connected with the speed reducer 401, the free end of the transmission shaft 402 penetrates the cavity of the ice making cylinder 201 and extends into the mixing container 100, and the free end of the transmission shaft 402 is connected with the stirrer 300.

[0092] Referring to Figure 2 and Figure 11 , the power device 400 further comprises a bearing member 403 for rotatably supporting the free end of the transmission shaft 402. The bearing member 403 is arranged in the cavity of the ice making cylinder 201 and is fixed relative to the ice making cylinder 201. It is worth noting that the transmission shaft 402 is coaxially arranged with the ice making cylinder 201. The free end of the transmission shaft 402 continues to extend to the left into the mixing container 100 after passing through the bearing member 403. Since the transmission shaft 402 is partially located outside the inner cavity of the ice making cylinder 201, it needs to be sealed to prevent liquid from flowing into the cavity of the ice making cylinder 201 and affecting the components such as the refrigeration pipe 202. In this application, a sealing member is arranged at the bearing member 403.

[0093] Referring to Figure 2 and Figure 11 , the ice making cylinder 201 has an end face on one side in the mixing container 100, and the bearing member 403 is fixedly arranged on the end face. The end face can be connected with the ice making cylinder 201 by snap connection, or can be integrally formed with the ice making cylinder 201. In this application, the structure of the end face being integrally formed with the ice making cylinder 201 is selected, which has the advantages of simpler process and no need to seal the connection between the end face and the ice making cylinder 201.

[0094] A through hole is formed in the end face of the ice making cylinder 201, and the bearing member 403 is coaxially arranged with the through hole, so that the transmission shaft 402 can stably pass through the through hole after being supported by the bearing member 403. The sealing member is arranged between the bearing member 402 and the through hole to ensure the sealing between the inner cavity of the ice making cylinder 201 and the mixing container 100 during the installation of the transmission shaft 402.

[0095] The bearing member comprises a bearing and a bearing mounting block having a bearing chamber. The bearing mounting block is located in the inner cavity of the ice making cylinder 201 and surrounds the through hole, and the locking screw located outside the ice making cylinder 201 passes through the end face to fix and lock the bearing mounting block on the end face. The bearing is arranged in the bearing chamber and can be a tapered roller bearing.

[0096] Referring to Figure 2 and Figure 10 , the scraping part 3001 is used to effectively scrape off the solid substances on the outer wall of the ice making cylinder 201, and the pushing part 3002 is helical, which can push the solid substances away from the ice making cylinder 201 and push the solid substances outside the ice making cylinder 201 to the discharge port 1002.

[0097] The pushing part 3002 comprises a first pushing unit 3003 and a second pushing unit 3004, the first pushing unit 3003 is sleeved on the ice making cylinder 201, and the second pushing unit 3004 is located outside the ice making cylinder 201. The second pushing unit 3004 is in the shape of a spiral fan, and a connecting part is formed in the middle of the end face close to the ice making cylinder 201, and the connecting part is used for fixedly connecting the free end of the transmission shaft 402.

[0098] With reference to Figure 10 , the scraping part 3001 is in a linear shape and extends along the axis direction of the ice making cylinder 201. During rotation, the linear working part of the scraping part 3001 can tightly abut the outer side wall of the ice making cylinder 201 to scrape off the solid body. The scraping part 3001 is usually made by injection molding process, and the ice making cylinder 201 is made of stainless steel. Due to the influence of the parameters of the processing process and the installation process, the scraping part 3001 cannot be guaranteed to effectively abut the surface of the ice making cylinder 201. If the abutment is too tight, it will cause too large friction, which will affect the transmission of the transmission shaft 402, the motor and the like. Usually, after installation, there is a gap between the abutment part of the scraping part 3001 and the surface of the ice making cylinder 201. In view of this defect, the scraping part 3001 of the present application is also provided with a rubber strip which is matched with the shape of the scraping part 3001 and is installed in an interference fit with the ice making cylinder 201, so as to completely abut the surface of the ice making cylinder 201. On the one hand, it can effectively scrape off the solid body on the ice making cylinder 201; on the other hand, the use of soft material can reduce the friction, and the harsh sound caused by hard friction will not occur during friction.

[0099] With reference to Figure 2 and Figure 10 , the pushing part 3002 rotates around the axis of the ice making cylinder 201 in a predetermined direction to push the scraped solid body forward during rotation. Specifically, the pushing part 3002 is spirally arranged along the axis of the ice making cylinder 201, and part of the structure extends to the outside of the ice making cylinder 201. In the present application, the number of pushing parts 3002 is two, and the relative starting points and relative ending points of the two pushing parts 3002 are arranged at an interval of 180°. The number of scraping parts 3001 is also two, and the scraping parts 3001 and the pushing parts 3002 are arranged at an interval around the circumference of the ice making cylinder 201, and the relative starting points and relative ending points of the adjacent scraping parts 3001 and pushing parts 3002 are arranged at an interval of 90°.

[0100] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

Claims

1. A frozen beverage maker characterized by, The application relates to an ice maker. The ice maker comprises a mixing container, an evaporator arranged in the mixing container, the evaporator comprising an ice making cylinder and a refrigeration pipe arranged in the ice making cylinder, an expansion element arranged between the refrigeration pipe and the ice making cylinder, the refrigeration pipe being tightly attached to the ice making cylinder and the expansion element respectively, a stirrer rotatably arranged on the ice making cylinder to scrape off solid bodies condensed on the outer wall of the ice making cylinder, and a power device pivotally arranged on the stirrer, the power device comprising a motor, a transmission shaft pivotally connected to the motor, and a speed reducer pivotally connected between the motor and the transmission shaft. The refrigeration pipe has an attached pipe surface tightly attached to the inner wall of the ice making cylinder, the cross section of the refrigeration pipe in the axial direction of the ice making cylinder is a refrigeration cross section, the cross section of the attached pipe surface is an attached cross section, and the ratio of the length of the attached cross section to the maximum length of the refrigeration cross section is greater than or equal to 3 / 4. The length of the refrigeration cross section extends along the axial direction of the ice making cylinder. In the axial direction of the ice making cylinder, the refrigeration cross section is in the shape of a rectangle, and the connecting part of the adjacent two sides of the refrigeration cross section is formed with a rounded corner. In the axial direction of the ice making cylinder, the refrigeration cross section is in the shape of a runway, and the straight line segment of the refrigeration cross section is tightly attached to the inner wall of the ice making cylinder.

2. The frozen beverage manufacturing machine of claim 1, wherein, In the axial direction of the ice making cylinder, the refrigeration cross section is in the shape of a D, and the straight line segment of the refrigeration cross section is tightly attached to the inner wall of the ice making cylinder.

3. The frozen beverage manufacturing machine of claim 2, wherein, The ice maker further comprises a capillary tube and a transmission pipe connected to the opposite ends of the refrigeration pipe, and cooling medium flowing in the capillary tube, the refrigeration pipe and the transmission pipe in sequence to absorb heat of the ice making cylinder to form the solid bodies. The transmission pipe is integrally formed with the refrigeration pipe, and the connecting part of the transmission pipe and the refrigeration pipe is twisted to form a bent segment. In the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission pipe is a transmission cross section, the circumference of the transmission cross section is equal to the circumference of the refrigeration cross section, the maximum width of the transmission cross section is D1, the maximum length of the transmission cross section is L1, the maximum width of the refrigeration cross section is D2, and the maximum length of the refrigeration cross section is L2, D1>D2, and L1 In the direction perpendicular to the flow direction of the cooling medium, the cross section of the transmission pipe is in the shape of a hollow circular ring.

4. The frozen beverage manufacturing machine of claim 2, wherein, The bent capillary tube is arranged in the cavity formed by the refrigeration pipe, and the capillary tube and the transmission pipe are led out on the same side of the ice making cylinder. The bent shape of the corresponding part of the capillary tube and the transmission pipe is adapted to the bent shape of the transmission pipe. Part of the structure of the capillary tube is arranged in the transmission pipe. The ice maker comprises at least one buckle element, and the capillary tube is fixed on the transmission pipe through the buckle element. The expansion element extends along the axial direction of the ice making cylinder and is coaxially arranged with the ice making cylinder. The ice maker further comprises a pressing element arranged at the opposite ends of the expansion element in the axial direction of the ice making cylinder, the pressing element abutting against the expansion element and limiting the displacement of the expansion element in the radial direction of the ice making cylinder. ​ ​ 5. The frozen beverage manufacturing machine of claim 1, wherein, ​ ​ The end of the pressing piece towards the expanding piece has a pressing slope, the expanding piece has a corresponding expanding slope, and the fitting area of the pressing slope with the expanding slope gradually increases during the movement of the pressing piece towards the expanding piece; The expanding piece is a circular ring cylinder, and a notch is arranged on the expanding piece and extends from the first end of the expanding piece to the second end of the expanding piece along the axial direction of the ice making cylinder.

6. The frozen beverage manufacturing machine of claim 1, wherein, The power device comprises a motor, a transmission shaft pivotally connected with the motor, and a free end of the transmission shaft extending into the mixing container through the cavity of the ice making cylinder and connected with the stirrer; The bearing member is arranged on one side close to the free end of the transmission shaft and located in the cavity of the ice making cylinder; The ice making cylinder has an end face on one side in the mixing container, and the bearing member is arranged on the end face; The end face is snap-connected with the ice making cylinder, or the end face is integrally formed with the ice making cylinder; A through hole is arranged on the end face, and the free end of the transmission shaft passes through the through hole and is located in the mixing container; A sealing member is arranged at the through hole and seals against the transmission shaft.

7. The frozen beverage manufacturing machine of claim 1, wherein, The stirrer comprises a scraping part and a pushing part, the scraping part is attached to the outer side wall of the ice making cylinder to scrape the solid body condensed, and the pushing part pushes the scraped solid body forward during rotation.

8. The frozen beverage manufacturing machine of claim 7, wherein, The scraping part is linear and extends along the axial direction of the ice making cylinder; the pushing part is helically arranged along the axial direction of the ice making cylinder and extends to the outside of the ice making cylinder.

9. The frozen beverage manufacturing machine of claim 7, wherein, A rubber strip is arranged on the scraping part and abuts against the outer side wall of the ice making cylinder.

10. The frozen beverage manufacturing machine of claim 9, wherein, The rubber strip is shaped to fit the scraping part, and the rubber strip and the outer side wall of the ice making cylinder are in interference fit.

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