Ice cream machine

Abstract

The utility model provides an ice cream machine, the ice cream machine comprises a shell, a liner, a heating assembly and a lifting assembly, the liner, the heating assembly and the lifting assembly are arranged in the shell, the lifting assembly comprises a supporting frame and a lifting piece, the liner and the supporting frame are oppositely arranged up and down to form a first air duct, the heating assembly is arranged in the first air duct, and the lifting piece is arranged in the shell. A screw rod and an abutting part are formed at the two ends of the lifting part respectively, a screw hole is formed in the supporting frame, the screw rod and the screw hole are connected in an inserted mode to form a screw rod mechanism, and the abutting part is used for abutting against the bottom of the inner container. According to the ice cream machine, the distance between the inner container and the heating assembly can be flexibly adjusted through the lifting assembly, heating and refrigerating of food materials in the inner container are facilitated, heat dissipation of the heating assembly is facilitated through the first air channel, space utilization in the ice cream machine is optimized, and the overall structure of the ice cream machine is more compact and efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing equipment, and in particular relates to an ice cream machine. Background Art

[0002] In the current ice cream making process, semi-solid ingredients such as cream and butter are widely used as key raw materials. In order to speed up the ice cream preparation process and ensure the uniform mixing of the raw materials, these ingredients usually need to be heated or melted to a specific temperature in the preparation stage before ice cream making. This process is usually carried out outside the ice cream machine, such as using a stove, microwave oven or special heating equipment. Although this external heating method is effective, it undoubtedly increases the complexity of the ice cream preparation process and the number of utensils and sites required, and also increases the cost and time consumption of manual operation.

[0003] After the cream, butter and other ingredients are heated and mixed evenly in the external equipment, they need to be transferred to the mixing barrel of the ice cream machine to further pass through the freezing and mixing system of the ice cream machine to complete the production of ice cream. This transfer process not only increases the cumbersomeness of the operation, but may also affect the final quality of the ice cream due to temperature fluctuations.

[0004] The core design concept of the ice cream machine focuses on its efficient refrigeration system and precise stirring mechanism, which aims to quickly reduce the temperature of the raw materials and fully stir them through the synergy of these two core functions to create a delicate and smooth ice cream texture. Therefore, the internal structure of the ice cream machine is closely centered around refrigeration performance, and its heat dissipation system is carefully configured to ensure that a low temperature environment is maintained during continuous operation to avoid overheating that may adversely affect the performance of the machine.

[0005] However, if we analyze the internal structure of the ice cream machine in depth, we can easily find that its structure is specially designed for refrigeration. From material selection to layout, everything is centered around how to achieve a low temperature environment and uniform mixing more efficiently. Its compact layout maximizes the use of every inch of space to optimize the refrigeration effect and ensure that the ice cream is formed under the best conditions. But it is precisely this highly specialized design that makes the ice cream machine seem powerless when faced with heating needs.

[0006] If you try to forcibly integrate a heating system into an ice cream machine, the first problem you’ll encounter is space limitations. Heating elements, temperature control devices, and possible insulation materials will all take up the already compact internal space, squeezing out the living space of the refrigeration system. This not only limits the improvement of refrigeration efficiency, but can also lead to uneven heat distribution due to unreasonable spatial layout, further exacerbating the heat dissipation problem.

[0007] Overload of the cooling system is another problem that cannot be ignored. The original cooling design of the ice cream machine is optimized based on the refrigeration demand, and its cooling capacity matches the refrigeration load. The introduction of the heating system will greatly increase the internal heat generation, making the cooling system face unprecedented challenges. If the cooling system cannot discharge this heat out of the machine in a timely and effective manner, the temperature inside the ice cream machine will rise rapidly, forming a vicious cycle, seriously affecting its normal operation.

[0008] The more far-reaching impact is that excessive internal temperature will pose a direct threat to the core components of the ice cream machine. When precision components such as motors and compressors operate in a high temperature environment, their performance will be greatly reduced, and they may even be damaged due to overheating. This will not only shorten the service life of the ice cream machine, but may also increase maintenance costs and affect user experience.

[0009] For ice cream production, high temperature environment is a fatal blow. The formation of ice cream is a complex physical and chemical process, in which the crystallization of water under low temperature conditions is the key to forming the delicate taste and stable structure of ice cream. However, too high internal temperature will inhibit this key reaction, resulting in the inability of water in the ice cream to effectively crystallize, and then forming a finished product with loose texture and rough taste. This not only fails to meet consumers' pursuit of ice cream quality, but may also have a negative impact on the brand image of the ice cream machine.

[0010] Therefore, how to solve the problem of heating ingredients while maintaining efficient refrigeration of the ice cream machine has become an important issue that needs to be broken through in the current development of ice cream machine technology. Utility Model Content

[0011] The primary purpose of the present invention is to solve at least one of the above problems and provide an ice cream machine.

[0012] In order to meet one of the purposes of the utility model, an ice cream machine is provided, including an outer shell and an inner tank arranged in the outer shell, a heating component and a lifting component, the lifting component includes a support frame and a lifting member, the inner tank and the support frame are arranged opposite to each other up and down to form a first air duct, the heating component is arranged in the first air duct, a screw and a top part are formed at both ends of the lifting member respectively, a screw hole is provided on the support frame, the screw and the screw hole are plugged into each other to form a screw mechanism, and the top part is used to abut against the bottom of the inner tank.

[0013] Furthermore, the lifting assembly also includes a gear ring, and the lifting member is also formed with an external gear, and the external gear is meshed with the gear ring.

[0014] Specifically, the lifting assembly further includes a lifting motor and a driving gear, the output shaft of the lifting motor is drivingly connected to the driving gear, and the driving gear is drivingly connected to the ring gear.

[0015] Specifically, the lifting assembly includes a plurality of lifting members, and the plurality of lifting members are evenly distributed along the gear ring.

[0016] Specifically, the shell further includes a mounting tube, the inner liner is arranged in the mounting tube, a through hole is opened at the bottom of the mounting tube, and the abutment top can pass through the through hole.

[0017] In one embodiment, the heat-generating component includes a heat-generating element and a heat-dissipating element. The heat-dissipating element is provided with a mounting hole, the heat-generating element is arranged in the mounting hole, a plurality of heat-dissipating fins are provided in the heat-dissipating element, and the heat-dissipating element is connected to the outer surface of the bottom of the mounting hole.

[0018] In one embodiment, a driving motor and a stirring assembly are further provided in the outer shell, the stirring assembly is arranged in the inner tank, the driving motor is transmission-connected to the stirring assembly, a second air duct is formed between the support frame and the bottom of the outer shell, the driving motor is arranged in the second air duct, an air inlet and an air outlet are opened on the outer shell, the first air duct and the second air duct share the air inlet and the air outlet, and the stirring assembly is arranged in the inner tank.

[0019] In one embodiment, a wind wheel assembly is further provided in the housing, and the wind wheel assembly includes a wind wheel and a wind wheel motor. The output shaft of the wind wheel motor is drivingly connected to the wind wheel, and the wind wheel assembly is arranged in the second air duct.

[0020] In one embodiment, the wind wheel is provided with an axial hole, and the support frame is provided with a plug-in shaft corresponding to the axial hole, and the plug-in shaft is inserted into the axial hole. The wind wheel assembly is also provided with a first gear and a second gear, the first gear is plugged into the output shaft of the wind wheel motor, and the second gear is fixed to the outside of the axial hole, the first gear and the second gear are directly meshed or meshed through a gear system, the gear ring is provided with a notch corresponding to the first gear, the first gear is arranged in the notch, and the notch constitutes the operating range of the gear ring.

[0021] In one embodiment, an air outlet piece is further provided in the housing, and an air outlet duct is provided in the air outlet piece. The head end of the air outlet duct is connected to the second air duct, and the end end is connected to the air outlet.

[0022] Compared with the prior art, the present invention has many advantages, including but not limited to:

[0023] (1) The lifting assembly of the ice cream machine of the utility model cleverly solves the spatial layout problem that may be encountered when the traditional ice cream machine integrates the heating function internally. Specifically, the lifting assembly is composed of a support frame and a lifting member, wherein the lifting member closely cooperates with the screw hole on the support frame through its screw rod and the top structure to form a flexible and stable screw mechanism. This mechanism not only ensures that the lifting member can move vertically smoothly and accurately, but also gives the operator the ability to adjust the position of the heating component.

[0024] As the lifting part moves up and down, it adjusts and controls whether the inner pot receives the heat emitted by the heating component. When the food needs to be heated, the lifting part slowly descends, and the heating component is set under the inner pot to ensure that the heat can be directly and efficiently transferred to the ice cream ingredients in the inner pot. This instant and precise heating control allows the food to be heated evenly at the most suitable temperature, avoiding the problem of local overheating or insufficient temperature, and laying a solid foundation for making high-quality ice cream.

[0025] When the heating task is completed, the heating component stops working, and the lifting part rises quickly and smoothly, so that the inner pot is away from the heating component, avoiding the residual heat of the heating component from being transferred to the inner pot and affecting the cooling of the food in the inner pot. Due to the separation of the heating and cooling processes, the potential impact of heat on the cooling efficiency is avoided, making the cooling process faster, and further improving the texture and taste of the ice cream.

[0026] (2) The utility model can integrate food heating and ice cream making in the same ice cream machine, which brings significant process optimization and quality improvement, which is specifically reflected in the following aspects:

[0027] ① Simplification of operation process: Traditionally, the heating of ingredients and the making of ice cream often need to be carried out in two or more devices respectively, which not only increases the complexity of operation, but also prolongs the entire production cycle. However, the utility model integrates the heating component and the core components of ice cream making into the same device, thus achieving a seamless connection from preheating ingredients to forming ice cream. This change greatly simplifies the operation process, allowing the operator to complete the making of ice cream more conveniently and improving work efficiency.

[0028] ② Cost and time savings: Due to the reduction of transfer steps between equipment, the time consumption in the ice cream making process has been effectively reduced. Operators no longer need to spend extra time waiting for ingredients to cool, move or readjust equipment, but can complete all necessary operations directly in the ice cream machine. In addition, this design also reduces the cost of manual operation, because while reducing the operation links, it also reduces possible operational errors and additional labor requirements.

[0029] ③ Reduce contamination and temperature loss: In the process of transferring ingredients from heating equipment to ice cream making equipment, they are easily affected by the external environment, resulting in contamination or temperature loss. These unfavorable factors will not only affect the hygiene standards of the ice cream, but may also have a negative impact on its taste and quality. This application effectively avoids this problem by completing all steps in the same equipment. The ingredients enter the ice cream making area immediately after heating, reducing the chance of contact with the external environment, thereby reducing the risk of contamination. At the same time, since the temperature fluctuations in the transfer link are reduced, the temperature control in the ice cream making process is also more stable, which helps to improve the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0031] Figure 1 It is a three-dimensional schematic diagram of an ice cream machine according to a typical embodiment of the utility model.

[0032] Figure 2 The circuit principle block diagram of the ice cream machine of the typical embodiment of the utility model is shown in FIG.

[0033] Figure 3 This is a schematic diagram of the first partial structure of an ice cream machine according to a typical embodiment of the utility model.

[0034] Figure 4 This is a schematic diagram of the second partial structure of the ice cream machine in a typical embodiment of the utility model.

[0035] Figure 5 The figure is a schematic structural diagram of the inner container of an ice cream machine according to a typical embodiment of the utility model.

[0036] Figure 6 This is a structural schematic diagram of the first perspective of the installation barrel of the ice cream machine of a typical embodiment of the utility model.

[0037] Figure 7 It is a structural schematic diagram of the second viewing angle of the mounting barrel of the ice cream machine of a typical embodiment of the utility model.

[0038] Figure 8 It is a first partial cross-sectional schematic diagram of an ice cream machine according to a typical embodiment of the utility model.

[0039] Fig. 9 This is a second partial cross-sectional schematic diagram of an ice cream machine according to a typical embodiment of the utility model.

[0040] Fig.10 This is a structural schematic diagram of a support frame of an ice cream machine from a first perspective in a typical embodiment of the utility model.

[0041] Fig.11 This is a structural schematic diagram of a support frame of an ice cream machine according to a typical embodiment of the utility model from a second perspective.

[0042] Fig.12 It is a schematic structural diagram of a heating component of an ice cream machine according to a typical embodiment of the utility model.

[0043] Fig.13 It is a cross-sectional schematic diagram of a heating component of an ice cream machine according to a typical embodiment of the utility model.

[0044] Fig.14 It is a structural schematic diagram of the air outlet member of an ice cream machine according to a typical embodiment of the utility model.

[0045] Fig.15 The figure is a schematic structural diagram of a lifting member of an ice cream machine according to a typical embodiment of the utility model.

[0046] Fig.16 The figure is a schematic structural diagram of the inner gear ring of an ice cream machine according to a typical embodiment of the utility model.

[0047] Fig.17 The figure is a schematic structural diagram of a protective cap of an ice cream machine according to a typical embodiment of the utility model.

[0048] Fig.18 The figure is a schematic structural diagram of a wind wheel of an ice cream machine according to a typical embodiment of the utility model. DETAILED DESCRIPTION

[0049] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and cannot be interpreted as limiting the present invention.

[0050] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may be intermediate elements. In addition, the "connection" or "coupling" used here may include wireless connection or wireless coupling. The term "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0051] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0052] The utility model provides an ice cream machine, in which a heating component is arranged in a first air duct, and a lifting component is provided, through which an inner tank is driven to move up and down, so that the inner tank is close to or away from the heating component, so as to heat or cool the food in the inner tank.

[0053] In a typical embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 and Figure 4 The ice cream machine 100 includes a shell 110, a mounting cylinder 120, an inner tank 130, a heating component 140, a refrigeration component 150, a stirring component 160, a lifting component 210, a wind wheel component 220 and a control unit 170. The mounting cylinder 120, the inner tank 130, the heating component 140, the refrigeration component 150, the lifting component 210, the wind wheel component 220 and the control unit 170 are arranged in the shell 110, and the control unit 170 is electrically connected to the heating component 140, the refrigeration component 150, the lifting component 210, the wind wheel component 220 and the stirring component 160 respectively.

[0054] Combination Figure 5The inner container 130 is used to contain contents, which are products of different stages in the ice cream making process, such as ice cream raw materials, semi-finished ice cream, finished ice cream, etc.

[0055] The installation tube 120 is provided with an installation cavity 121, and the inner liner 130 is arranged in the installation cavity 121, so that the inner liner 130 is loaded through the installation tube 120. The installation cavity 121 is provided with an opening 122, and the inner liner 130 is placed in the installation cavity 121 through the opening 122. Figure 1 and Figure 3 The housing 110 is further configured with a cover 111 , and the opening 122 is closed by the cover 111 , thereby closing the inner container 130 .

[0056] Combination Figure 3 and Figure 8 The refrigeration assembly 150 includes an evaporator 151, a condenser 152 and a compressor 153. The evaporator 151, the condenser 152 and the compressor 153 are connected through pipelines, and refrigerant passes through the pipelines between the evaporator 151, the condenser 152 and the compressor 153. The evaporator 151 includes an evaporation pipeline 1511. A layout space is formed in the wall of the installation cylinder 120, and the evaporation pipeline 1511 is arranged in the layout space.

[0057] When the contents in the inner liner 130 need to be cooled, the refrigerant is introduced into the evaporation line 1511 of the evaporator 151, and the refrigerant in the evaporation line 1511 absorbs external heat, so that the contents in the inner liner 130 are absorbed and cooled. After the refrigerant absorbs heat, it flows to the compressor 153, and the compressor 153 pressurizes the refrigerant. Then the refrigerant flows to the condenser 152, and releases heat to the outside through the condenser 152, so that the refrigerant cools down, and then flows to the evaporator 151 again, and the cycle is repeated to continuously absorb the heat of the contents in the inner liner 130 and cool down the contents.

[0058] The stirring assembly 160 includes a stirring member 161 and a wall-breaking member 162 . The stirring member 161 is used to stir the contents in the inner pot 130 , and the wall-breaking member 162 is used to break hard materials in the contents, such as nuts, ice cubes, etc.

[0059] Combination Figure 8The stirring member 161 includes a stirring rod 1611 and a plurality of stirring blades 1612 arranged on the stirring rod 1611. A first motor 163 is provided in the cover body 111. The two ends of the stirring rod 1611 are respectively a first end and a second end. The first end of the stirring rod 1611 extends into the cover body 111 to be transmission-connected with the first motor 163 arranged in the cover body 111. The second end of the stirring rod 1611 extends into the inner pot 130. The plurality of stirring blades 1612 are connected to the second end of the stirring rod 1611. The control unit 170 drives the first motor 163 to work so as to drive the stirring member 161 to rotate through the first motor 163 to stir the contents in the inner pot 130.

[0060] Combination Figure 4 , Figure 8 and Fig. 9 The wall-breaking member 162 includes a wall-breaking rod 1621 and a plurality of wall-breaking blades 1622 disposed on the wall-breaking rod 1621. A driving motor 164 is disposed in the housing 110. The two ends of the wall-breaking rod 1621 are respectively a first end and a second end. The first end of the wall-breaking rod 1621 is transmission-connected to the driving motor 164. The second end of the wall-breaking rod 1621 extends into the inner container 130. The plurality of wall-breaking blades 1622 are disposed on the second end of the wall-breaking rod 1621. The control unit 170 controls the driving motor 164 to work, so as to drive the wall-breaking member 162 to rotate through the driving motor 164, so as to break the contents in the inner container 130.

[0061] In a typical embodiment of the present invention, Fig.10 , Fig.11 and Figure 3 A support frame 180 is further provided in the housing 110. The support frame 180 includes a support plate 181 and a plurality of support legs 182. The plurality of support legs 182 are provided on the support plate 181. The plurality of support legs 182 are located at the bottom of the housing 110 to support the support plate 181 in the housing 110. The support plate 181 is provided below the mounting tube 120, and the support plate 181 is arranged opposite to the bottom wall 123 of the mounting tube 120. A plurality of support sheets 125 are provided on the edge of the bottom wall 123 of the mounting tube 120, and the mounting tube 120 is supported on the support plate 181 of the mounting tube 120 by the plurality of support sheets 125.

[0062] Combination Figure 8 The support plate 181 is spaced apart from the bottom of the mounting tube 120 to form a first air duct 112; the support plate 181 is also spaced apart from the bottom of the housing 110 to form a second air duct 113. Figure 1The housing 110 is provided with an air inlet 114 and an air outlet 115 , and the first air duct 112 and the second air duct 113 share the air inlet 114 and the air outlet 115 .

[0063] Combination Fig.12 , Fig.13 and Figure 8 The heating component 140 is arranged in the first air duct 112. When the content in the inner tank 130 needs to be heated, the control unit 170 controls the heating component 140 to generate heat, and transfers heat to the content in the inner tank 130 through the mounting tube 120 and the inner tank 130 to heat the content. For example, when the content is a semi-solid material such as cream or butter, the heating component 140 heats the cream, butter and other ingredients to accelerate the melting of the cream, butter and other ingredients, so as to improve the production efficiency of ice cream.

[0064] When the contents in the inner tank 130 do not need to be heated, the control unit 170 controls the heating component 140 to stop heating, and the outside air enters the first air duct 112 through the air inlet 114, so as to quickly discharge the heat previously generated by the heating component 140 from the first air duct 112 and the air outlet 115 to the outside of the ice cream machine 100, so as to avoid residual heat remaining in the ice cream machine 100 and affecting the freezing of the contents.

[0065] Combination Fig.12 and Fig.13 The heating assembly 140 includes a heating element 141, which is disposed in the first air duct 112. The control unit 170 controls the heating element 141 to generate heat to dissipate heat. In this embodiment, it is recommended that the heating element 141 is made of metal material or heating ceramic material.

[0066] The heating element 141 is extended along the outer contour of the bottom wall 131 of the inner pot 130 to form a ring-shaped heating element 141. The ring-shaped heating element 141 can heat all areas of the bottom wall 131 of the inner pot 130 to avoid uneven local heating and affect the heating effect of the contents. In one embodiment, the heating element 141 forms a spiral structure along the outer contour of the bottom wall 131 of the inner pot 130 to further uniformly heat all areas of the bottom wall 131 of the inner pot 130 and improve the uniformity of heating.

[0067] In one embodiment, the heating component 140 further includes a heat sink 142, in which a mounting hole 1421 is provided, and the heating element 141 is installed in the mounting hole 1421. The heat sink 142 has a good heat dissipation performance. When the heating element 141 generates heat, the heat sink 142 can quickly dissipate the heat generated by the heating element 141 into the first air duct 112, thereby improving the heating efficiency of the contents in the inner liner 130. Moreover, when the ice cream machine 100 does not need the heating element 141 to work and heat, the heat sink 142 can also quickly dissipate the residual heat of the heating element 141, so that the residual heat is quickly discharged from the ice cream machine 100 through the first air duct 112, thereby preventing the residual heat of the heating element 141 from affecting the freezing of the contents by the ice cream machine 100.

[0068] In this embodiment, the shape of the heat sink 142 corresponds to the shape of the heating element 141, that is, the heat sink 142 extends along the extension path of the heating element 141, so that the heat sink 142 is convenient for installing the heating element 141. The heat sink 142 is also provided with a plurality of heat sinks 1422, and the heat sinks 1422 are provided to further improve the heat dissipation efficiency. When the heating element 141 is working, the heating efficiency of the contents can be further accelerated; when the heating element 141 does not need to work, the heat sink 1422 can also further accelerate the dissipation of the residual heat of the heating element 141, so as to prevent the residual heat of the heating element 141 from affecting the freezing of the contents.

[0069] In one embodiment, in combination Figure 7 and Fig.12 The heat sink 142 is arranged on the outer side surface of the bottom wall 123 of the mounting tube 120 (the outer side surface is called the mounting surface 1231), and the mounting surface 1231 is arranged opposite to the support plate 181. By arranging the heat sink 142 on the mounting surface 1231, the heat dissipated by the heating element 141 can be transferred to the bottom wall 123 of the mounting tube 120 where the mounting surface 1231 is located through the heat sink 142, and then transferred to the bottom wall 131 of the inner liner 130 through the bottom wall 123 of the mounting tube 120, and then transferred to the contents through the bottom wall 131 of the inner liner 130. Compared with heat transfer through air, heat transfer through the bottom wall 123 of the mounting tube 120 and the bottom wall 131 of the inner liner 130 has higher efficiency, and the contents in the inner liner 130 can be quickly heated.

[0070] In a typical embodiment of the present invention, Figure 8 and Fig. 9The driving motor 164 is arranged in the second air duct 113, and the output shaft 1641 of the driving motor 164 passes through the supporting plate 181, the bottom wall 123 of the mounting tube 120 and the bottom wall 131 of the inner tank 130 in sequence to enter the inner tank 130, and the supporting plate 181, the bottom wall 123 of the mounting tube 120 and the bottom wall 131 of the inner tank 130 are also provided with through holes corresponding to the output shaft 1641 to facilitate the passing of the output shaft 1641, so that the output shaft 1641 of the driving motor 164 can be transmission-connected with the wall-breaking member 162 arranged in the inner tank 130.

[0071] When the driving motor 164 is working, outside air enters the second air duct 113 through the air inlet 114, and the outside air blows the heat generated by the driving motor 164 out of the ice cream machine 100 through the air outlet 115. In addition, due to the blocking of the support plate 181, the heat generated by the driving motor 164 will not be transferred to the contents in the inner container 130, thereby avoiding the influence of the heat generated by the driving motor 164 on the contents.

[0072] In one embodiment, in order to save space in the housing 110 and make the ice cream machine 100 miniaturized, the end 1912 of the first air duct 112 is connected to the second air duct 113 , that is, the first air duct 112 is connected to the air outlet 115 via the second air duct 113 .

[0073] Specifically, combined Fig.10 and Fig.11 , the support plate 181 is provided with a plurality of ventilation holes 1811, the ventilation holes 1811 are through holes, and the first air duct 112 is connected to the second air duct 113 through the ventilation holes 1811. The plurality of ventilation holes 1811 are arranged in sequence along the extension path of the heating element 141, so that the plurality of ventilation holes 1811 can directly correspond to the residual heat of the heating element 141 when it stops working and introduce it into the second air duct 113, reduce the time that the residual heat of the heating element 141 stays in the first air duct 112, reduce the influence of the residual heat of the heating element 141 on the inner liner 130 and the contents in the inner liner 130, and also improve the efficiency of the residual heat of the heating element 141 dissipating to the outside of the ice cream machine 100. In this embodiment, it is recommended that the outer contour of the ventilation hole 1811 is in the shape of a long strip, so as to increase the ventilation area of ​​the ventilation hole 1811 and accelerate the flow of air from the first air duct 112 to the second air duct 113.

[0074] In this embodiment, combined with Fig.14The housing 110 is further provided with an air outlet 190, and the air outlet 190 is provided with an air outlet 191, and the two ends of the air outlet 191 are respectively a head end 1911 and a tail end 1912. The air outlet 190 is arranged between the second air duct 113 and the air outlet 115, wherein, in combination with Figure 3 The head end 1911 of the air outlet 191 is connected to the second air duct 113, and the end 1912 of the air outlet 191 is connected to the air outlet 115. The air outlet member 190 is used to guide the airflow in the second air duct 113 to be discharged outside the ice cream machine 100 through the air outlet 115.

[0075] Specifically, the caliber of the air outlet 191 is gradually enlarged from the head end 1911 of the air outlet 191 to the end 1912 of the air outlet 191. As the caliber of the air outlet 191 gradually enlarges, the flow area of ​​the airflow also increases accordingly, which helps more air pass through the air outlet 191, thereby increasing the overall air volume of the ice cream machine 100, so that the heat in the first air duct 112 and the second air duct 113 can be discharged as soon as possible, and the internal temperature of the ice cream machine 100 can be reduced. In addition, the eddy current and resistance generated by the air flow during the flow process can also be reduced, so that more air can pass through the air duct smoothly, thereby increasing the air volume. In addition, the gradual expansion of the caliber of the air outlet 191 can slow down the flow rate of the air flow in the air duct, thereby reducing the noise generated by the high-speed flow of the air flow and improving the user experience. In this embodiment, it is recommended that the caliber of the air outlet 191 be linearly enlarged from the head end 1911 of the air outlet 191 to the end 1912 of the air outlet 191.

[0076] In one embodiment, in combination Fig.14 and Fig.11 The air outlet member 190 is also provided with an air induction plate 192, and the air induction plate 192 is led out from the head end 1911 of the air outlet 191. The reverse side 1814 of the support plate 181 is also provided with an air induction channel 183, and it can be understood that the air induction channel 183 is arranged in the second air channel 113, and the air induction plate 192 is inserted in the second air channel 113, so that the head end 1911 of the air outlet 191 is connected and communicated with the second air channel 113. Moreover, the first air channel 112 introduces heat into the air induction channel 183 through the plurality of ventilation holes 1811, and then guides it into the air outlet 191 through the air induction channel 183, so that the first air channel 112 can discharge heat to the outside as soon as possible.

[0077] In a typical embodiment of the utility model, the ice cream machine 100 is further provided with a lifting assembly 210, which is used to control the lifting and lowering of the inner tank 130. Specifically, when the heating element 141 stops heating, the lifting assembly 210 controls the inner tank 130 to rise, so as to reduce the heat transfer between the heating element 141 and the inner tank 130, and expand the first air duct 112 to increase the air output; when the heating element 141 is heated, the lifting assembly 210 controls the inner tank 130 to descend, so that the inner tank 130 contacts the bottom wall 123 of the mounting cylinder 120, and improves the heat transfer between the heating element 141, the bottom wall 123 of the mounting cylinder 120 and the bottom wall 131 of the inner tank 130, so as to quickly heat the contents in the inner tank 130.

[0078] Specifically, combined Fig.15 and Fig.16 The lifting assembly 210 includes a lifting member 211, an inner gear ring 212, a lifting motor, a driving gear 214, and the support frame 180 described above. The lifting member 211 is in the shape of a rod, and the two ends of the lifting member 211 form a screw rod 2111 and a stopper 2112, respectively. The lifting member 211 is formed with an external gear 2113, and the external gear 2113 is disposed between the screw rod 2111 and the stopper 2112. Fig.10 and Fig. 9 The support plate 181 of the support frame 180 is provided with a screw hole 1812, and the screw hole 1812 extends from a side of the support plate 181 facing the mounting tube 120 (the side is called the front side 1813) to a side of the support plate 181 facing the bottom of the housing 110 (the side is called the back side 1814). The screw rod 2111 of the lifting member 211 is inserted into the screw hole 1812, so that the screw rod 2111 and the screw hole 1812 form a screw mechanism.

[0079] Combination Figure 6 and Figure 7 A through hole (the through hole is called the first through hole 124) is opened on the bottom wall 123 of the mounting tube 120, and the abutting top 2112 of the lifting member 211 is aligned with the first through hole 124. The abutting top 2112 can be driven to rise toward the inner liner 130 by the screw mechanism, so that the abutting top 2112 contacts the bottom wall 131 of the inner liner 130, and the screw mechanism is continuously driven, so that the abutting top 2112 abuts the inner liner 130, and the bottom wall 131 of the inner liner 130 is separated from the bottom wall 123 of the mounting tube 120, so as to reduce the heat transfer between the bottom wall 131 of the inner liner 130 and the mounting tube 120.

[0080] In this embodiment, when the heating element 141 is working, driven by the screw mechanism, the abutting top portion 2112 descends to below the bottom wall 123 of the mounting tube 120, so that the bottom wall 131 of the inner liner 130 contacts the bottom wall 123 of the mounting tube 120; when the heating element 141 stops working, the abutting top portion 2112 is driven by the screw mechanism to push up the inner liner 130, so that the bottom wall 131 of the inner liner 130 is separated from the bottom wall 123 of the mounting tube 120, thereby reducing the heat transfer between the inner liner 130 and the mounting tube 120, and expanding the first air duct 112 to improve air fluidity for rapid heat dissipation.

[0081] Combination Figure 4 and Fig. 9 The inner gear ring 212 is disposed on the front face 1813 of the support plate 181, and the lifting member 211 is disposed inside the inner gear ring 212. The outer gear 2113 of the lifting member 211 is meshed with the inner gear ring 212. The inner gear ring 212 is driven to rotate to drive the outer gear 2113 to rotate, and the screw rod 2111 is driven to rotate by the outer gear 2113. The screw rod 2111 and the screw hole 1812 form a screw mechanism, thereby driving the top portion 2112 of the lifting member 211 to move up and down. In one embodiment, the inner gear ring 212 can also be replaced by an outer gear ring to achieve the same function.

[0082] Combination Figure 4 The driving gear 214 is meshed with the inner gear ring 212, and the driving gear 214 is in driving connection with the lifting motor (not shown). The lifting motor drives the driving gear 214 to rotate, thereby driving the inner gear ring 212 to rotate, thereby driving the lifting member 211 to rise or fall. In this embodiment, the output shaft of the lifting motor is plugged into the gear hole of the driving gear 214.

[0083] In this embodiment, combined with Figure 4 The lifting assembly 210 is provided with a plurality of lifting members 211, which are simultaneously engaged with the inner gear ring 212, and the plurality of lifting members 211 are evenly arranged along the inner gear ring 212, so that under the action of the plurality of lifting members 211, the inner liner 130 can be balancedly supported without causing one end of the inner liner 130 to tilt up and the other end to fall. In this embodiment, it is recommended that the lifting assembly 210 is provided with three lifting members 211 to implement three-point positioning, so as to facilitate balanced support of the inner liner 130.

[0084] In one embodiment, in combination Figure 4 and Fig.17The top portion 2112 of the lifting member 211 is also provided with a protective cap 215, and the protective cap 215 wraps the top portion 2112 to prevent the top portion 2112 from being damaged. In this embodiment, the protective cap 215 is made of a flexible material to reduce the rigid contact between the top portion 2112 and the bottom wall 131 of the inner liner 130, thereby protecting the top portion 2112 and the inner liner 130.

[0085] In one embodiment, a wind wheel assembly 220 is further provided in the second air duct 113. The wind wheel assembly 220 increases the air flow in the second air duct 113 and the air flow in the first air duct 112 by rotating. The air flow in the first air duct 112 and the second air duct 113 accelerates the rate at which heat is discharged from the ice cream machine 100.

[0086] Specifically, combined Fig.18 The wind wheel assembly 220 includes a wind wheel 221 and a wind wheel motor 222. Fig.11 and Fig. 9 , the wind wheel 221 is provided with an axial hole 2211, and a plug-in shaft 1815 is convexly provided on the reverse side 1814 of the support plate 181, and the plug-in shaft 1815 is inserted into the axial hole 2211. The wind wheel 221 is driven by the wind wheel motor 222 and rotates around the plug-in shaft 1815 to form wind, and the wind accelerates the air flow in the first air duct 112 and the second air duct 113. In this embodiment, the plug-in shaft 1815 is coaxially arranged with the output shaft 1641 of the driving motor 164, and a through hole corresponding to the output shaft 1641 is provided in the plug-in shaft 1815 (the through hole is called the second through hole 1816), so that the output shaft 1641 can pass through the support plate 181 through the second through hole 1816.

[0087] In this embodiment, combined with Figure 4 , Fig. 9 and Fig.18 The wind wheel assembly 220 further includes a first gear 223 and a second gear 224, wherein the second gear 224 is fixedly mounted on the wind wheel 221, the first gear 223 is disposed in the first air duct 112, the wind wheel motor 222 is disposed in the second air duct 113, the output shaft of the wind wheel motor 222 is plugged into the gear hole of the first gear 223, the first gear 223 is meshed with the second gear 224 through a gear train, and the wind wheel motor 222 drives the wind wheel 221 to rotate through the first gear 223 and the gear train. In this embodiment, the second gear 224 is disposed around the shaft hole 2211 of the wind wheel 221, and the second gear 224 and the wind wheel 221 are integrally formed.

[0088] In one embodiment, in combination Figure 4 and Fig. 9 The gear train includes a third gear 225, a fourth gear 226 and a fifth gear 227. The third gear 225 and the fourth gear 226 are arranged in the first air duct 112. The third gear 225 is meshed with the first gear 223 and the fourth gear 226 respectively. The fifth gear 227 is arranged in the second air duct 113, and the fifth gear 227 is meshed with the second gear 224. The fourth gear 226 and the fifth gear 227 are connected via a connecting shaft.

[0089] In one embodiment, in combination Fig.16 and Figure 4 A notch 2121 is provided in the inner gear ring 212, and the first gear 223 is arranged in the notch 2121. The first gear 223 is used as a limiter of the notch 2121 to limit the operating range of the inner gear ring 212 through the notch 2121 to avoid excessive running of the inner gear ring 212, so that the screw 2111 of the lifting member 211 is disengaged from the screw hole 1812 on the support plate 181.

[0090] In one embodiment, the wind wheel 221 may be disposed in the first air duct 112 instead of being disposed in the second air duct 113 .

[0091] In one embodiment, in combination Fig. 9 A protective shell 116 is further provided in the housing 110 , and the driving motor 164 is arranged in the protective shell 116 to protect the driving motor 164 . A plurality of heat dissipation holes 1161 are provided on the protective shell 116 , so that the driving motor 164 can dissipate heat to the outside through the heat dissipation holes 1161 .

[0092] In summary, the ice cream machine of the present invention provides an air duct for each of the heating component and the driving motor to accelerate the heat dissipation of the heating component and the driving motor, and the lifting component can press against the inner tank so that the inner tank rises relative to the heating component to reduce the heat transfer between the heating component and the inner tank, thereby further improving the heat dissipation efficiency of the ice cream machine.

[0093] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0094] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. An ice cream machine, characterized in that: The invention comprises an outer shell and an inner tank arranged in the outer shell, a heating component and a lifting component, wherein the lifting component comprises a support frame and a lifting member, the inner tank and the support frame are arranged opposite to each other up and down to form a first air duct, the heating component is arranged in the first air duct, a screw rod and an abutment top are formed at both ends of the lifting member respectively, a screw hole is provided on the support frame, the screw rod and the screw hole are plugged into each other to form a screw mechanism, and the abutment top is used to abut against the bottom of the inner tank.

2. The ice cream machine according to claim 1, characterized in that: The lifting component further includes a gear ring, and an external gear is formed on the lifting member, and the external gear is meshed with the gear ring.

3. The ice cream machine according to claim 2, characterized in that: The lifting assembly also includes a lifting motor and a driving gear. The output shaft of the lifting motor is transmission-connected to the driving gear, and the driving gear is transmission-connected to the ring gear.

4. The ice cream machine according to claim 2 or 3, characterized in that: The lifting assembly includes a plurality of lifting members, and the plurality of lifting members are evenly distributed along the gear ring.

5. The ice cream machine according to claim 1, characterized in that: The shell further comprises a mounting tube, the inner shell is arranged in the mounting tube, a through hole is formed at the bottom of the mounting tube, and the abutting top portion can pass through the through hole.

6. The ice cream machine according to claim 5, characterized in that: The heating component includes a heating element and a heat sink. The heat sink is provided with a mounting hole. The heating element is arranged in the mounting hole. The heat sink is provided with a plurality of heat sinks. The heat sink is connected to the outer surface of the bottom of the mounting hole.

7. The ice cream machine according to claim 2, characterized in that: A driving motor and a stirring component are also provided in the shell, and the stirring component is arranged in the inner tank. The driving motor is transmission-connected to the stirring component. A second air duct is formed between the support frame and the bottom of the shell, and the driving motor is arranged in the second air duct. An air inlet and an air outlet are provided on the shell, and the first air duct and the second air duct share the air inlet and the air outlet.

8. The ice cream machine according to claim 7, characterized in that: A wind wheel assembly is also provided in the shell. The wind wheel assembly includes a wind wheel and a wind wheel motor. The output shaft of the wind wheel motor is drivingly connected to the wind wheel. The wind wheel assembly is arranged in the second air duct.

9. The ice cream machine according to claim 8, characterized in that: The wind wheel is provided with an axial hole, and the support frame is provided with a plug-in shaft corresponding to the axial hole, and the plug-in shaft is inserted into the axial hole. The wind wheel assembly is also provided with a first gear and a second gear, the first gear is plugged into the output shaft of the wind wheel motor, and the second gear is fixed to the outside of the axial hole, the first gear and the second gear are directly meshed or meshed through a gear system, the gear ring is provided with a notch corresponding to the first gear, the first gear is arranged in the notch, and the notch constitutes the operating range of the gear ring.

10. The ice cream machine according to claim 7, characterized in that: An air outlet piece is also provided in the shell, and an air outlet duct is provided in the air outlet piece. The head end of the air outlet duct is connected to the second air duct, and the end end is connected to the air outlet.

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