Efficient and energy-saving snow melting machine

Abstract

The efficient and energy-saving snow melting machine comprises a beverage barrel and an evaporator, an ice-making outer cavity is formed in the beverage barrel, and the evaporator is arranged in the ice-making outer cavity; the evaporator comprises an outer sleeve and an inner sleeve, the inner sleeve is sleeved with the outer sleeve in a spaced mode, a refrigerant evaporation cavity is formed by an interlayer between the outer sleeve and the inner sleeve, and refrigerant media are guided into the refrigerant evaporation cavity. The outer wall of the outer sleeve forms an outer refrigeration surface, and the inner wall of the inner sleeve forms an inner refrigeration surface; an ice-making inner cavity is formed in the inner side of the inner sleeve; the snow melting machine further comprises an outer screw rod, an inner screw rod and a power device. And the outer screw rod and the inner screw rod are matched with each other, so that the beverage solution circularly enters the ice-making inner cavity and the ice-making outer cavity for re-icing. The snow melting machine can improve the refrigeration efficiency, reduce the cooling capacity loss so as to shorten the waiting time, achieve the purpose of saving electricity and energy, meet the quick and changeable requirements of consumers, and improve the use experience of products.

Description

Technical Field

[0001] The invention relates to refrigeration equipment, in particular to a high-efficiency and energy-saving snow melting machine. Background Art

[0002] A snow melt machine, also known as a smoothie machine, is a cold drink appliance that freezes liquid sugary drinks such as cola, wine, coffee, soda, juice, chocolate, milk, etc. into cool and refreshing snow-melted drinks. The refrigeration components of the snow melt machine include a compressor, a condenser, and an evaporator. The compressor and condenser are standard parts and only need to be matched according to the refrigeration efficiency requirements. The direct influencing factor of the refrigeration effect lies in the design of the evaporator, which determines the refrigeration heat exchange area and the size of the cold conduction loss, thereby directly affecting the refrigeration efficiency of the entire refrigeration component. At present, both commercial and household snow melt machines immerse the evaporator in the beverage solution, and refrigerate and exchange heat between the outer wall of the evaporator and the beverage solution in the solution cylinder, but the disadvantages of this refrigeration method are obvious, as follows: The small heat exchange area of ​​the traditional evaporator leads to low refrigeration efficiency: the traditional evaporator relies on the unilateral refrigeration and heat exchange of the cylindrical outer wall, which limits the contact and conduction area between the outer wall of the evaporator and the beverage solution. The small refrigeration and heat exchange area directly limits the refrigeration efficiency of the refrigeration component. The traditional evaporator has a very large loss in cold transfer: the refrigerant enters the copper tube winding from the inlet pipe and changes from liquid to gas, causing the copper tube winding to release cold energy outward, and then the copper tube winding transfers the cold energy to the stainless steel tube wall of the evaporator, and finally the stainless steel tube wall transfers the cold energy to the beverage solution. Therefore, the refrigerant needs to pass through two layers of different media for evaporation heat exchange and refrigeration to be transferred to the beverage solution. The more layers of media, the greater the cold loss. Moreover, only part of the copper tube itself is in contact with the stainless steel tube wall. In addition, the copper tube winding and the stainless steel tube wall of the evaporator cannot fit perfectly, resulting in too small a contact conduction area and a greatly reduced cold conduction effect. The actual cold energy applied to the beverage solution is less than 30%; The working method of traditional snow melting machines is to completely immerse the evaporator in the beverage solution. In addition, the evaporator is cylindrical and unilaterally cooled, which causes waste of cold energy in the middle of the evaporator. In addition, there are too many layers of cold conduction medium and the contact conduction area is too small, so the cold transfer loss is very large. Therefore, traditional snow melting machines often take 45 minutes or even more than an hour to make 2 liters of smoothie cold drinks. This technology for making smoothies and cold drinks, which has been used for more than ten years, is time-consuming and power-consuming, and cannot meet various sudden and impromptu cold drink needs.

[0003] With the improvement of living standards, more and more consumers hope to enjoy the fun of making smoothies and cold drinks at home. However, the traditional machines for making smoothies and cold drinks are time-consuming and power-consuming. Therefore, how to design an efficient refrigeration snow melting machine has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a high-efficiency and energy-saving snow melting machine. The snow melting machine can improve the refrigeration efficiency and reduce the cold loss without increasing the refrigeration power consumption, thereby shortening the waiting time, thereby achieving the purpose of saving electricity and energy, and can meet the fast and changing needs of consumers and enhance the product usage experience.

[0005] The object of the present invention is achieved in that: An efficient and energy-saving snow melting machine comprises a beverage cylinder and an evaporator. An ice-making outer chamber is arranged in the beverage cylinder, and the evaporator is arranged in the ice-making outer chamber; the evaporator comprises an outer sleeve and an inner sleeve, the outer sleeve is sleeved on the outer side of the inner sleeve in an interval manner, and the interlayer between the outer sleeve and the inner sleeve forms a ring-shaped refrigerant evaporation chamber, and the refrigerant medium is introduced into the refrigerant evaporation chamber and transported from the front end to the rear end of the refrigerant evaporation chamber; the outer wall of the outer sleeve forms an outer refrigeration surface, and the inner wall of the inner sleeve forms an inner refrigeration surface, and the cold generated by the evaporation of the refrigerant medium is directly transferred to the outer refrigeration surface and the inner refrigeration surface; the inner side of the inner sleeve is provided with front and rear ends respectively The ice-making inner cavity is openly arranged, and there is a distance between the front and rear ends of the evaporator and the front and rear ends of the beverage cylinder, so that the front end of the ice-making outer cavity is connected with the front end of the ice-making inner cavity, and the rear end of the ice-making outer cavity is connected with the rear end of the ice-making inner cavity, and the beverage solution enters the ice-making outer cavity and the ice-making inner cavity respectively; the snow melter also includes an outer screw for scraping ice crystals on the outer refrigeration surface and pushing them forward, an inner screw for scraping ice crystals on the inner refrigeration surface and pushing them backward, and a power device for driving the outer screw and the inner screw to rotate; the outer screw and the inner screw cooperate with each other to circulate the beverage solution into the ice-making inner cavity and the ice-making outer cavity for repeated re-freezing.

[0006] As a specific solution, the evaporator also includes a spirally extended air guide spiral blade, which is arranged between the outer sleeve and the inner sleeve; the outer side of the air guide spiral blade is infinitely close to the inner wall of the outer sleeve, and the inner side of the air guide spiral blade is infinitely close to the outer wall of the inner sleeve, thereby dividing the refrigerant evaporation chamber into a spiral refrigerant channel, and the refrigerant medium is transported along the refrigerant channel.

[0007] As another specific scheme, the two axial ends of the outer sleeve and the two axial ends of the inner sleeve are closed and connected to each other, so that the two axial ends of the refrigerant evaporation chamber are closed; a refrigerant inlet pipe for introducing the refrigerant medium and a refrigerant outlet pipe for exporting the refrigerant medium are inserted into the refrigerant evaporation chamber, the inlet end of the refrigerant inlet pipe extends to near the front end of the evaporator and is connected to one end of the refrigerant channel, and the outlet end of the refrigerant outlet pipe extends to near the rear end of the evaporator and is connected to the other end of the refrigerant channel.

[0008] As another specific scheme, the evaporator includes a first edge seal and a second edge seal, the first edge seal is respectively connected to the axial front end of the outer sleeve and the axial front end of the inner sleeve, the second edge seal is respectively connected to the axial rear end of the outer sleeve and the axial rear end of the inner sleeve, the refrigerant inlet pipe passes through the first edge seal or the second edge seal and extends axially into the refrigerant evaporation chamber, and the refrigerant outlet pipe passes through the first edge seal or the second edge seal and extends axially into the refrigerant evaporation chamber.

[0009] As another specific scheme, the power device is a driving motor, the motor shaft of the driving motor is detachably connected to the rear end of the inner screw through a sleeve, the front end of the inner screw is transmission-connected to the front end of the outer screw, the front end of the inner screw and / or the front end of the outer screw is detachably rotatably connected to the beverage cylinder, the outer screw and the inner screw are coaxially matched with each other, and the driving motor drives the outer screw and the inner screw to rotate in the same direction.

[0010] As another specific scheme, the outer screw includes a linkage sleeve, and the inner screw includes a drive shaft; the front end of the drive shaft is detachably coaxially plugged with the linkage sleeve, and the rear end of the drive shaft is detachably coaxially plugged with the sleeve; a cam is provided on the inner wall of the beverage cylinder, and an axial hole is provided at the front end of the drive shaft, the front end of the drive shaft passes through the linkage sleeve, and the cam is detachably rotatably plugged with the axial hole.

[0011] As another specific scheme, an outer spiral blade is provided on the outer screw, and the inner side of the outer spiral blade is close to the outer refrigeration surface; an inner spiral blade is provided on the inner screw, and the outer side of the inner spiral blade is close to the inner refrigeration surface; the spiral extension direction of the outer spiral blade is opposite to the spiral extension direction of the inner spiral blade, so that the ice scraping and pushing direction of the outer screw is opposite to that of the inner screw; the pitch of the inner spiral blade is different from the pitch of the outer spiral blade; more than one outer spiral blade is provided, the front end of the outer spiral blade is connected to the linkage sleeve, and the rear end of the outer spiral blade is provided with a positioning ring, and the outer spiral blade, the linkage sleeve and the positioning ring are coaxially matched with each other; more than one inner spiral blade is provided, and the inner side of the inner spiral blade is provided on the driving shaft, the front end of the driving shaft extends out of the front end of the ice-making cavity and is rotatably connected to the beverage cylinder, and the rear end of the driving shaft extends out of the rear end of the ice-making cavity and is detachably connected to the motor shaft of the driving motor through the connecting shaft.

[0012] As another specific scheme, the snow melting machine also includes a supporting frame and a control module, the beverage can is detachably arranged on the supporting frame, and the evaporator and / or the power device is fixedly arranged on the supporting frame; an induction switch electrically connected to the control module is arranged on the supporting frame, and the induction switch is triggered after the beverage can is installed in place; the rear end of the beverage can is opened, and a can cover is arranged on the supporting frame, and after the beverage can is installed in place, the can cover can be detachably sealed and closed The open end of the beverage can.

[0013] As another specific scheme, slide grooves are respectively provided on the left and right sides of the support frame, and a lock piece is hinged on the support frame, which can swing relative to the support frame, and a lock hook is provided at one swinging end of the lock piece; a first slider and a second slider are provided on the beverage cylinder, and the first slider and the second slider can slide on the slide grooves respectively; when the beverage cylinder slides to a set position relative to the support frame, the open end of the beverage cylinder is covered with the cylinder cover, and at the same time the second slider triggers the induction switch, and the lock piece is rotated to make the lock hook hook the first slider.

[0014] As another specific scheme, the outer screw and the inner screw are rotatably arranged relative to the beverage cylinder, and a feed port connected to the ice-making outer chamber is provided on the beverage cylinder, and the beverage solution enters the ice-making outer chamber and the ice-making inner chamber through the feed port; a discharge port connected to the ice-making outer chamber is provided at the front end of the beverage cylinder, and when the discharge port is opened, the outer screw rotates to squeeze the smoothie in the ice-making outer chamber out of the discharge port.

[0015] The beneficial effects of the present invention are as follows: This snow melter is a household snow melter. It achieves the following effects through innovative optimization of the evaporator structure and improvement of the refrigeration working mode: it can improve the refrigeration efficiency without increasing the refrigeration power consumption, and greatly reduce the cold transfer loss, and quickly make smoothies without waiting for a long time (2 liters of smoothies can be made in more than ten minutes), achieving energy saving and fast and flexible use effects, and can meet the fast and changing needs of consumers and enhance the product use experience; in addition, it is small in size and low in cost, so it is suitable for home use.

[0016] Specifically: The core heat exchange component of the refrigeration system is the evaporator. The traditional single-sided refrigeration evaporator is improved into an annular tube-shaped evaporator with internal and external refrigeration. The improved evaporator has an additional internal refrigeration surface compared to the traditional evaporator, thereby greatly increasing the heat exchange area (approximately 77.37%). That is, the effective heat exchange area of ​​the evaporator in contact with the beverage solution is greatly increased (approximately 77.37%). After deducting the loss and the matching loss of the refrigeration system, the refrigeration efficiency can be improved by at least 43%, which greatly improves the refrigeration efficiency and cooling capacity of the refrigeration system.

[0017] The cold energy generated by the evaporation of the refrigerant medium can directly act on the inner and outer refrigeration surfaces in contact with the beverage solution, greatly reducing the cold energy transfer loss; the evaporator with an annular double-layer structure is a double-layer stainless steel tube structure, and the two ends are welded and sealed, leaving only the refrigerant outlet and inlet pipes. This closed double-layer stainless steel tube sandwich space is the refrigerant evaporation chamber, and a spiral air guide spiral piece is fixedly arranged in this refrigerant evaporation chamber. The inner and outer sides of the air guide spiral piece are infinitely close to the inner wall of the sandwich of the refrigerant evaporation chamber. The air guide spiral piece and the double-layer stainless steel tube sandwich form a spirally tightly arranged refrigerant channel, one end of the spiral refrigerant channel is connected to the refrigerant inlet pipe, and the other end is connected to the refrigerant outlet pipe; when the refrigeration system is working, the liquid refrigerant pressurized by the compressor enters the relatively large refrigerant channel through the inlet pipe and instantly reduces the pressure Evaporation is used for heat exchange refrigeration. The refrigerant absorbs the heat of the beverage solution outside the refrigerant evaporation chamber and then changes phase into a gaseous refrigerant medium. Finally, it flows out from the outlet pipe of the refrigerant channel and returns to the compressor to start the next round of refrigeration cycle. This evaporator eliminates the intermediate medium (in the traditional structure, the cold energy needs to be transferred to the copper tube winding first, and then to the evaporator surface), allowing the refrigerant to directly exchange heat with the double-layer stainless steel tube wall of the evaporator, while avoiding a large amount of cold energy transfer loss caused by the small contact surface between the copper tube winding and the stainless steel tube wall of the traditional evaporator. By eliminating the intermediate transfer medium, the cold transfer loss can be effectively reduced by at least 15%. The condenser of this structure shortens the time for making smoothies compared with traditional products, shortening the time for making 2 liters of smoothies from 45 minutes to 21 minutes, and the refrigeration efficiency is more than doubled.

[0018] The rear end of the evaporator (the end facing the power device) is in an open state, and a linked inner screw and outer screw are respectively arranged on the inner and outer sides of the refrigerant evaporation chamber of the evaporator. The outer screw scrapes off the ice crystals formed on the outer tube wall of the evaporator and pushes the gradually formed smoothie forward in the beverage barrel (towards the end of the smoothie outlet), and the inner screw scrapes off the ice crystals formed on the inner tube wall of the evaporator and pushes the gradually formed smoothie backward, squeezing out the smoothie at the opening at the rear end of the evaporator to allow it to enter the beverage barrel, and then pushed to the front end of the beverage barrel by the outer screw, and then rolled into the inner tube of the evaporator by the inner screw for repeated refrigeration; after the smoothie is formed, it is squeezed out from the opening at the rear end of the evaporator, thereby forming a circulating refrigeration working mode. On the one hand, this can prevent the semi-formed smoothie from absorbing the heat outside the barrel and melting itself, and on the other hand, the refrigeration efficiency is higher and the water content of the cold drink smoothie produced is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 2 is a cross-sectional view of a smoothie making assembly according to an embodiment of the present invention.

[0020] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0021] Figure 3 Schematic diagram of disassembling a beverage cartridge according to an embodiment of the present invention.

[0022] Figure 4 It is a partial exploded view of a smoothie making assembly in one embodiment of the present invention.

[0023] Figure 5 Schematic diagram of the working principle of an evaporator in one embodiment of the present invention.

[0024] Figure 6 It is a cross-sectional view in the first direction of the smoothie making assembly in the working state according to one embodiment of the present invention.

[0025] Figure 7 It is a cross-sectional view in the second direction of the smoothie making assembly in the working state according to one embodiment of the present invention.

[0026] Figure 8 FIG. 1 is an exploded view of a snow melting machine according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] See also Figure 1-Figure 7 The present embodiment relates to a household snow melter, which includes a beverage cylinder 8 and an evaporator D. The beverage cylinder 8 is provided with an ice-making outer chamber 801. The evaporator D is arranged in the ice-making outer chamber 801. The beverage solution is stored in the ice-making outer chamber 801, and the evaporator D is immersed in the beverage solution. The evaporator D also includes an outer sleeve 9 and an inner sleeve 10. The outer sleeve 9 is sleeved on the outer side of the inner sleeve 10 in an interval manner. The interlayer between the outer sleeve 9 and the inner sleeve 10 forms a ring-shaped refrigerant evaporation chamber D1. The low-temperature refrigerant medium produced by the refrigeration system is introduced into the refrigerant evaporation chamber D1 and transported from the front end to the rear end of the refrigerant evaporation chamber D1. The outer wall of the outer sleeve 9 forms an outer refrigeration surface 901, and the inner sleeve 10 is provided with a cooling surface 902. The inner wall forms an inner refrigeration surface 1001, and the cold energy generated by the evaporation of the refrigerant medium is directly transferred to the outer refrigeration surface 901 and the inner refrigeration surface 1001; the inner side of the inner sleeve 10 is provided with an ice-making inner cavity D3 with open front and rear ends respectively, the outer refrigeration surface 901 contacts the beverage solution in the ice-making outer cavity 801, and the inner refrigeration surface 1001 contacts the beverage solution in the ice-making inner cavity D3, and there is a gap between the front and rear ends of the evaporator D and the front and rear ends of the beverage cylinder 8, respectively, so that the front end of the ice-making outer cavity 801 is connected with the front end of the ice-making inner cavity D3, and the rear end of the ice-making outer cavity 801 is connected with the rear end of the ice-making inner cavity D3, and the beverage solution enters the ice-making outer cavity 801 and the ice-making inner cavity D3 respectively; see Figure 2The cold energy generated by the evaporation of the refrigerant medium in the refrigerant evaporation chamber D1 is directly transferred to the outer refrigeration surface 901 and the inner refrigeration surface 1001 through the corresponding inner and outer sleeves, so that the beverage solution on the outer refrigeration surface 901 and the inner refrigeration surface 1001 is frozen into ice crystals; the snow melter also includes an outer screw 18 for scraping off the ice crystals on the outer refrigeration surface 901 and pushing them forward, an inner screw 17 for scraping off the ice crystals on the inner refrigeration surface 1001 and pushing them backward, and a power device 1 for driving the outer screw 18 and the inner screw 17 to rotate; the outer screw 18 is rotatably arranged in the ice-making outer chamber 801, and the inner screw 17 is rotatably arranged in the ice-making inner chamber D3; the outer screw 18 and the inner screw 17 cooperate with each other to circulate the beverage solution into the ice-making inner chamber D3 and the ice-making outer chamber 801 for repeated freezing.

[0029] In the present snow melter, the evaporator D is an annular tube-shaped internal and external refrigeration structure, which is additionally provided with an internal refrigeration surface 1001. The cold energy generated by the evaporation of the refrigerant medium in the refrigerant evaporation chamber D1 is simultaneously transferred to the external refrigeration surface 901 and the internal refrigeration surface 1001, so that ice crystals can be formed simultaneously inside and outside the evaporator D. Compared with the traditional structure, the present evaporator D increases the heat exchange area by about 77.37%, that is, the effective heat exchange area of ​​the present evaporator D in contact with the beverage solution increases by about 77.37%, which greatly improves the refrigeration efficiency and the refrigeration capacity of the refrigeration system; in addition, all the cold energy generated by the evaporation of the refrigerant medium in the refrigerant evaporation chamber D1 can be directly transferred to the inner and outer sleeves. Compared with the traditional structure, the present evaporator D eliminates the intermediate transfer medium, thereby greatly reducing the transmission loss of the cold energy; in addition, the outer screw 18 pushes the beverage solution forward, and the inner screw 17 pushes the beverage solution backward, making full use of the internal and external refrigeration surfaces to form a refrigeration mode of circulating refrigeration, thereby avoiding the self-melting of the semi-formed smoothie absorbing the heat outside the barrel, and secondly, accelerating the formation of ice crystals of the beverage.

[0030] Furthermore, in order to guide the refrigerant medium to be transported along a set trajectory, the evaporator D also includes a spirally extending air guide spiral blade 15, which is fixedly arranged between the outer sleeve 9 and the inner sleeve 10, that is, the air guide spiral blade 15 is located in the refrigerant evaporation chamber D1, and the outer side of the air guide spiral blade 15 is infinitely close to the inner wall of the outer sleeve 9, and the inner side of the air guide spiral blade 15 is infinitely close to the outer wall of the inner sleeve 10, thereby dividing the refrigerant evaporation chamber D1 into a spiral refrigerant channel D2, and the refrigerant medium is transported along the spiral trajectory of the refrigerant channel D2; the refrigerant The medium directly acts on the outer refrigeration surface 901 and the inner refrigeration surface 1001 through the refrigerant channel D2, and performs heat exchange and cooling on the beverage raw materials on the outer refrigeration surface 901 and the inner refrigeration surface 1001 respectively, that is, the beverage solutions on the outer refrigeration surface 901 and the inner refrigeration surface 1001 can be frozen into ice crystals. Since the inner and outer walls of the evaporator D both have heat exchange and refrigeration effects, the refrigeration area is greatly increased, and the refrigeration efficiency is improved accordingly; the outer sleeve 9 and the inner sleeve 10 are stainless steel pipes with different inner diameters respectively, and the outer sleeve 9 is arranged on the outside of the inner sleeve 10 in an interval manner.

[0031] Furthermore, the two axial ends of the outer sleeve 9 and the two axial ends of the inner sleeve 10 are closed and connected to each other, so that the two axial ends of the refrigerant evaporation chamber D1 are closed, ensuring the sealing of the refrigerant evaporation chamber D1 and preventing leakage of the refrigerant medium; a refrigerant inlet pipe 21 for introducing the refrigerant medium and a refrigerant outlet pipe 12 for exporting the refrigerant medium are inserted in the refrigerant evaporation chamber D1; the inlet end of the refrigerant inlet pipe 21 extends to near the front end of the evaporator D and is connected to one end of the refrigerant channel D2, and the liquid refrigerant enters one end of the refrigerant channel D2 through the refrigerant inlet pipe 21; the outlet end of the refrigerant outlet pipe 12 extends to near the rear end of the evaporator D and is connected to the other end of the refrigerant channel D2, and the gaseous refrigerant leaves the refrigerant channel D2 through the refrigerant outlet pipe 12; the refrigerant inlet pipe 21 and the refrigerant outlet pipe 12 are respectively inserted into the refrigerant evaporation chamber D1 through any axial sealing end.

[0032] Furthermore, the evaporator D further includes a first sealing edge 4 and a second sealing edge 16, wherein the first sealing edge 4 is respectively connected to the axial front end of the outer sleeve 9 and the axial front end of the inner sleeve 10, and the second sealing edge 16 is respectively connected to the axial rear end of the outer sleeve 9 and the axial rear end of the inner sleeve 10, and the refrigerant inlet pipe 21 and the refrigerant outlet pipe 12 respectively pass through the second sealing edge 16 (or the first sealing edge 4) and extend axially into the refrigerant evaporation chamber D1. Specifically, the first sealing edge 4 is integrally formed outward at the axial front end of the inner sleeve 10, and the outer end of the first sealing edge 4 is welded to the axial front end of the outer sleeve 9, and the second sealing edge 16 is an independent annular component, and the second sealing edge 16 is respectively welded to the axial rear end of the outer sleeve 9 and the axial rear end of the inner sleeve 10, and the second sealing edge 16 is provided with openings for plugging the refrigerant inlet pipe 21 and the refrigerant outlet pipe 12, and the refrigerant inlet pipe 21 and the refrigerant outlet pipe 12 are respectively sealed with the second sealing edge 16.

[0033] In this embodiment, the cold energy generated by the evaporation of the refrigerant can directly act on the inner and outer refrigeration surfaces in contact with the beverage solution, greatly reducing the loss caused by the cold energy transfer process; the evaporator D is a ring-shaped double-layer stainless steel tube structure, the ice-making outer chamber 801 located on the outside of the evaporator D is provided with an outer screw 18, and the ice-making inner chamber D3 located on the inside of the evaporator D is provided with an inner screw 17; when the refrigeration system is working, the liquid refrigerant pressurized by the compressor 22 enters the refrigerant evaporation chamber D1 with a relatively large space through the refrigerant inlet pipe 21 and instantly reduces the pressure and evaporates Heat exchange refrigeration is carried out, and the liquid refrigerant absorbs the heat of the beverage solution outside the refrigerant evaporation chamber D1 and then changes into a gaseous refrigerant, and finally flows out from the refrigerant outlet pipe 12 and returns to the compressor 22 to continue the next round of refrigeration cycle; this evaporator D cancels the traditional copper tube winding, allowing the refrigerant to directly exchange heat with the outer sleeve 9 and the inner sleeve 10 (double-layer stainless steel tube wall), effectively avoiding a large amount of cold transfer loss caused by the small contact surface between the copper tube winding and the side wall, that is, this evaporator D can achieve zero cold loss and greatly improve the refrigeration efficiency.

[0034] Furthermore, the power device 1 in this embodiment is a driving motor, the motor shaft of the driving motor is detachably connected to the rear end of the inner screw 17 through the shaft sleeve 3, the front end of the inner screw 17 is transmission-connected to the front end of the outer screw 18, the front end of the inner screw 17 and / or the front end of the outer screw 18 is detachably rotatably connected to the beverage cylinder 8, the outer screw 18 and the inner screw 17 are coaxially matched with each other, and the driving motor drives the outer screw 18 and the inner screw 17 to rotate in the same direction.

[0035] Furthermore, in this embodiment, the outer screw 18 includes a linkage sleeve 1802, and the inner screw 17 includes a drive shaft 1702; the front end of the drive shaft 1702 is detachably coaxially plugged with the linkage sleeve 1802, and the rear end of the drive shaft 1702 is detachably coaxially plugged with the sleeve 3; a cam 806 is provided on the inner wall of the beverage cylinder 8, and an axial hole 1703 is provided at the front end of the drive shaft 1702, and the front end of the drive shaft 1702 passes through the linkage sleeve 1802, and the cam 806 is detachably rotatably plugged with the axial hole 1703.

[0036] Furthermore, in the present embodiment, two outer spiral blades 1801 are provided on the outer screw 18, and the inner sides of the two outer spiral blades 1801 are close to the outer refrigeration surface 901, so as to scrape off the ice crystals on the outer refrigeration surface 901; two inner spiral blades 1701 are provided on the inner screw 17, and the outer sides of the inner spiral blades 1701 are close to the inner refrigeration surface 1001, so as to scrape off the ice crystals on the inner refrigeration surface 1001; the spiral extension direction of the outer spiral blades 1801 is opposite to the spiral extension direction of the inner spiral blades 1701, and the outer screw 18 and the inner screw 17 rotate in the same direction, so that the scraping and pushing direction of the outer screw 18 is opposite to the scraping and pushing direction of the inner screw 17; In addition, the spiral extension direction of the outer spiral blade 1801 may be the same as the spiral extension direction of the inner spiral blade 1701, and the outer screw 18 and the inner screw 17 may rotate in opposite directions, so that the ice scraping and pushing direction of the outer screw 18 is opposite to that of the inner screw 17; the pitch of the inner spiral blade 1701 is different from the pitch of the outer spiral blade 1801, and the multi-dimensional circulation refrigeration system driven in coordination with the inner screw 17 and the outer screw 18 with different pitches can realize the precise and efficient heat exchange and refrigeration process of the beverage solution in the customized ice-making outer cavity 801 and the ice-making inner cavity D3 through unique phase difference control and pitch difference.

[0037] Furthermore, the front ends of the two outer spiral blades 1801 are connected to the linkage sleeve 1802, and the rear ends of the two outer spiral blades 1801 are provided with a positioning ring 1804. The outer spiral blades 1801, the linkage sleeve 1802 and the positioning ring 1804 are coaxially matched with each other; the two inner spiral blades 1701 are coaxially matched and the inner sides are commonly connected with a drive shaft 1702. The front end of the drive shaft 1702 extends out of the front end of the ice-making cavity D3 and is rotatably connected to the beverage cylinder 8, and the rear end of the drive shaft 1702 extends out of the rear end of the ice-making cavity D3 and is detachably connected to the motor shaft of the drive motor through the connecting shaft 3. The asymmetric meshing structure of the inner screw 17 and the outer screw 18 is adopted, combined with the flow distribution and the spinning push mechanism, to drive the beverage solution to circulate and cool between the ice-making outer chamber 801 with special heat exchange and the ice-making inner chamber D3, so as to achieve efficient smoothie making; in addition, the reverse rotation mechanism of the inner screw 17 and the outer screw 18 is used, in coordination with the evaporator chamber with gradient thermal conductivity, to achieve nonlinear and dynamic cooling of the beverage solution on the circulation path, which is different from the uniform cooling mode driven by traditional screws.

[0038] See also Figure 6 and Figure 7 The rear end of the evaporator D is in an open state, and an inner screw 17 and an outer screw 18 that are interconnected are respectively arranged on the inner and outer sides of the evaporator D. The outer screw 18 scrapes off the ice crystals on the outer refrigeration surface 901 and pushes the gradually formed ice smoothie forward in the ice-making outer chamber 801, and the inner screw 17 scrapes off the ice crystals on the inner refrigeration surface 1001 and pushes the gradually formed ice smoothie backward in the ice-making inner chamber D3, squeezes out the ice smoothie at the opening of the rear end of the evaporator D to make it enter the ice-making outer chamber 801, pushes the ice smoothie to the front end of the ice-making outer chamber 801 by the outer screw 18, and then is rolled into the ice-making inner chamber D3 by the inner screw 17 for repeated refrigeration; after the ice smoothie is formed, it is squeezed out from the opening of the rear end of the evaporator D, thereby forming a circulating refrigeration working mode, which not only has higher refrigeration efficiency but also has less water content in the cold drink ice smoothie.

[0039] Specifically, under the action of the reverse spiral driving force of the inner screw 17, the beverage solution enters the ice-making outer chamber 801 along the front end of the evaporator D; in the limited space of the ice-making inner chamber D3, the beverage solution and the evaporator D perform efficient heat exchange. Based on the principles of heat conduction and convection heat transfer, the heat in the beverage solution is continuously transferred to the evaporator D to achieve the refrigeration process, and slowly moves backward under the pull of the inner screw 17. After the beverage solution leaves the ice-making inner chamber D3, it immediately enters the ice-making outer chamber 801 under the drive of the positive propulsion force of the outer screw 18; in the ice-making outer chamber 801, the beverage solution undergoes the refrigeration process again by utilizing the low temperature environment of the evaporator D and moves forward; then, the beverage solution is pulled back into the ice-making inner chamber D3 by the inner screw 17, and the above refrigeration process is repeated. Through this reciprocating refrigeration cycle between the ice-making inner chamber D3 and the ice-making outer chamber 801, the beverage solution continuously exchanges heat until the heat inside the beverage solution is fully removed and the whole is transformed into a slush-like substance, completing the entire refrigeration process.

[0040] Furthermore, the outer screw 18 and the inner screw 17 are rotatably arranged relative to the beverage barrel 8. A feed port 802 connected to the ice-making outer chamber 801 is provided at the top of the beverage barrel 8, and the beverage solution enters the ice-making outer chamber 801 and the ice-making inner chamber D3 through the feed port 802; a feed cover 24 for opening or closing the feed port 802 is provided at the top of the beverage barrel 8; a discharge port 803 connected to the ice-making outer chamber 801 is provided at the front end of the beverage barrel 8. When the discharge port 803 is opened, the outer screw 18 rotates to squeeze the smoothie in the ice-making outer chamber 801 out of the discharge port 803.

[0041] Furthermore, the snow melting machine also includes a support frame 6 and a control module 11, the beverage can 8 is detachably arranged on the support frame 6, and the evaporator D and the power device 1 are respectively fixedly arranged on the support frame 6; an induction switch 19 electrically connected to the control module 11 is arranged on the support frame 6, and the induction switch 19 is triggered after the beverage can 8 is installed in place, and the snow melting machine can work normally; the beverage can 8 is opened at the rear end, and a can cover 20 is arranged on the support frame 6. After the beverage can 8 is installed in place, the can cover 20 can be detachably sealed to close the open end of the beverage can 8.

[0042] Specifically, the support frame 6 includes two side panels 602 arranged in pairs on the left and right sides, and the side panels 602 on the left and right sides are respectively provided with slide grooves 601. In this embodiment, the induction switch 19 is a micro switch electrically connected to the circuit, and the micro switch is fixedly arranged on any one side panel 602, and the moving contact piece of the micro switch corresponds to the slide groove 601; the rear end of the support frame 6 is hinged with a lock 23, and the lock 23 can swing relative to the support frame 6, and a lock hook 2301 is provided at one swinging end of the lock 23; a first slider 804 and a second slider 805 that are far away from each other are provided on the same side of the beverage cylinder 8, and the first slider 804 and the second slider 805 can slide on the slide groove 601 respectively, so that the beverage cylinder 8 can slide relative to the support frame 6; when the beverage cylinder 8 slides to the set position relative to the support frame 6 When the ice making machine is in the state of being set, the open end of the rear side of the beverage cylinder 8 is covered with the cylinder cover 20, and the cylinder cover 20 is sealed with the beverage cylinder 8 through the sealing member 7 to ensure the sealing of the ice making outer chamber 801; at the same time, the second slider 805 directly or through the transmission member triggers the moving contact piece on the micro switch, so that the circuit where the micro switch is located is turned on, thereby allowing the snow melting machine to work normally; in addition, by rotating the lock member 23, the lock hook 2301 can be hooked on the first slider 804 to prevent the beverage cylinder 8 from loosening; in the locked state, the user rotates the lock member 23 to unhook the lock hook 2301 from the first slider 804, and the user can disassemble the beverage cylinder 8 for cleaning. After removing the beverage cylinder 8, the evaporator D is exposed as a whole, and the outer screw 18 and the inner screw 17 can be disassembled respectively, so that the user can clean the various components conveniently.

[0043] Furthermore, the power device 1 is fixedly connected to the rear end of the support frame 6 through a fixed bracket 2; the evaporator D is fixedly connected to the cylinder cover 20 through a plurality of fixing bolts 14, so that the evaporator D is fixed in the ice-making outer chamber 801; a thermostat 13 is provided on the cylinder cover 20, and a probe of the thermostat 13 extends into the ice-making outer chamber 801 to detect the temperature in the ice-making outer chamber 801, and the thermostat is electrically connected to the control module 11.

[0044] Further, see Figure 8 The refrigeration system in the snow melter includes an evaporator D, a compressor 22, a condenser 25 and a drying filter 26 which are connected in a circular manner. A fan 27 is provided on one side of the condenser 25. The fan 27 is electrically connected to the control module 11 and cools and dissipates heat for the condenser 25. The refrigerant inlet pipe 21 is connected to the drying filter 26, and the refrigerant outlet pipe 12 is connected to the compressor 22. The casing of the snow melter includes a casing panel 28, a left casing 29, a right casing 30 and a casing back cover 31.

[0045] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A highly efficient and energy-saving snow melting machine, comprising a beverage cylinder (8) and an evaporator (D), wherein an ice-making outer chamber (801) is arranged in the beverage cylinder (8), and the evaporator (D) is arranged in the ice-making outer chamber (801); the characteristics are: The evaporator (D) comprises an outer sleeve (9) and an inner sleeve (10), wherein the outer sleeve (9) is sleeved on the outer side of the inner sleeve (10) in an intermittent manner, and the interlayer between the outer sleeve (9) and the inner sleeve (10) forms a ring-shaped refrigerant evaporation chamber (D1), and the refrigerant is introduced into the refrigerant evaporation chamber (D1) and transported from the front end to the rear end of the refrigerant evaporation chamber (D1); the outer wall of the outer sleeve (9) forms an outer refrigeration surface (901), and the inner wall of the inner sleeve (10) forms an inner refrigeration surface (1001), and the cold energy generated by the evaporation of the refrigerant is directly transferred to the outer refrigeration surface (901) and the inner refrigeration surface (1001); the inner side of the inner sleeve (10) is provided with an ice-making inner chamber (D3) which is openly arranged at the front and rear ends respectively, and the front and rear ends of the evaporator (D) are respectively connected to the beverage cylinder. (8) There is a gap between the front and rear ends, so that the front end of the ice-making outer chamber (801) is connected to the front end of the ice-making inner chamber (D3), and the rear end of the ice-making outer chamber (801) is connected to the rear end of the ice-making inner chamber (D3), and the beverage solution enters the ice-making outer chamber (801) and the ice-making inner chamber (D3) respectively; the snow melter also includes an outer screw (18) for scraping ice crystals on the outer refrigeration surface (901) and pushing them forward, an inner screw (17) for scraping ice crystals on the inner refrigeration surface (1001) and pushing them backward, and a power device (1) for driving the outer screw (18) and the inner screw (17) to rotate; the outer screw (18) and the inner screw (17) cooperate with each other to allow the beverage solution to circulate into the ice-making inner chamber (D3) and the ice-making outer chamber (801) for repeated ice making.

2. The high-efficiency and energy-saving snow melting machine according to claim 1, characterized in that: The evaporator (D) further comprises a spirally extending air guide spiral blade (15), which is arranged between the outer sleeve (9) and the inner sleeve (10); the outer side of the air guide spiral blade (15) is infinitely close to the inner wall of the outer sleeve (9), and the inner side of the air guide spiral blade (15) is infinitely close to the outer wall of the inner sleeve (10), thereby dividing the refrigerant evaporation chamber (D1) into a spiral refrigerant channel (D2), and the refrigerant medium is transported along the refrigerant channel (D2).

3. The high-efficiency and energy-saving snow melting machine according to claim 2, characterized in that: The two axial ends of the outer sleeve (9) and the two axial ends of the inner sleeve (10) are closed and connected to each other, so that the two axial ends of the refrigerant evaporation chamber (D1) are closed; a refrigerant inlet pipe (21) for introducing the refrigerant and a refrigerant outlet pipe (12) for outlet the refrigerant are inserted into the refrigerant evaporation chamber (D1), the inlet end of the refrigerant inlet pipe (21) extends to the vicinity of the front end of the evaporator (D) and is connected to one end of the refrigerant channel (D2), and the outlet end of the refrigerant outlet pipe (12) extends to the vicinity of the rear end of the evaporator (D) and is connected to the other end of the refrigerant channel (D2).

4. The high-efficiency and energy-saving snow melting machine according to claim 3 is characterized in that: The evaporator comprises a first sealing edge (4) and a second sealing edge (16), the first sealing edge (4) being respectively connected to the axial front end of the outer sleeve (9) and the axial front end of the inner sleeve (10), the second sealing edge (16) being respectively connected to the axial rear end of the outer sleeve (9) and the axial rear end of the inner sleeve (10), the refrigerant inlet pipe (21) passing through the first sealing edge (4) or the second sealing edge (16) and axially extending into the refrigerant evaporation chamber (D1), and the refrigerant outlet pipe (12) passing through the first sealing edge or the second sealing edge and axially extending into the refrigerant evaporation chamber (D1).

5. The high-efficiency and energy-saving snow melting machine according to claim 1, characterized in that: The power device (1) is a driving motor, the motor shaft of the driving motor is detachably connected to the rear end of the inner screw (17) through the shaft sleeve (3), the front end of the inner screw (17) is connected to the front end of the outer screw (18), the front end of the inner screw (17) and / or the front end of the outer screw (18) is detachably connected to the beverage cylinder (8), the outer screw (18) and the inner screw (17) are coaxially matched with each other, and the driving motor drives the outer screw (18) and the inner screw (17) to rotate in the same direction.

6. The high-efficiency and energy-saving snow melting machine according to claim 5, characterized in that: The outer screw (18) includes a linkage sleeve (1802), and the inner screw (17) includes a drive shaft (1702); the front end of the drive shaft (1702) is detachably coaxially plugged with the linkage sleeve (1802), and the rear end of the drive shaft (1702) is detachably coaxially plugged with the sleeve (3); a convex shaft (806) is provided on the inner wall of the beverage cylinder (8), and a shaft hole (1703) is provided at the front end of the drive shaft (1702); the front end of the drive shaft (1702) passes through the linkage sleeve (1802), and the convex shaft (806) is detachably rotatably plugged with the shaft hole (1703).

7. The high-efficiency and energy-saving snow melting machine according to claim 6, characterized in that: An outer spiral blade (1801) is provided on the outer screw (18), and the inner side of the outer spiral blade (1801) is close to the outer refrigeration surface (901); an inner spiral blade (1701) is provided on the inner screw (17), and the outer side of the inner spiral blade (1701) is close to the inner refrigeration surface (1001); the spiral extension direction of the outer spiral blade (1801) is opposite to the spiral extension direction of the inner spiral blade (1701), so that the ice scraping and pushing direction of the outer screw (18) is opposite to the ice scraping and pushing direction of the inner screw (17); the pitch of the inner spiral blade (1701) is different from the pitch of the outer spiral blade (1801); more than one outer spiral blade (1801) is provided, The front end of the outer spiral blade (1801) is connected to the linkage shaft sleeve (1802), and the rear end of the outer spiral blade (1801) is provided with a positioning ring (1804). The outer spiral blade (1801), the linkage shaft sleeve (1802) and the positioning ring (1804) are coaxially matched with each other. More than one inner spiral blade (1701) is provided, and the inner side of the inner spiral blade (1701) is provided on the driving shaft (1702). The front end of the driving shaft (1702) extends out of the front end of the ice-making inner cavity (D3) and is rotatably connected to the beverage cylinder (8), and the rear end of the driving shaft (1702) extends out of the rear end of the ice-making inner cavity (D3) and is detachably connected to the motor shaft of the driving motor through the connecting shaft (3).

8. The high-efficiency and energy-saving snow melting machine according to claim 1, characterized in that: The beverage can (8) also comprises a support frame (6) and a control module (11), wherein the beverage can (8) is detachably arranged on the support frame (6), and the evaporator (D) and / or the power device (1) are fixedly arranged on the support frame (6); an induction switch (19) electrically connected to the control module (11) is arranged on the support frame (6), and the induction switch (19) is triggered when the beverage can (8) is installed in place; the beverage can (8) is arranged with an opening at the rear end, and a can cover (20) is arranged on the support frame (6), and when the beverage can (8) is installed in place, the can cover (20) detachably seals and closes the open end of the beverage can (8).

9. The high-efficiency and energy-saving snow melting machine according to claim 8, characterized in that: The left and right sides of the support frame (6) are respectively provided with slide grooves (601); a locking member (23) is hingedly connected to the support frame (6); the locking member (23) is swingable relative to the support frame (6); a locking hook (2301) is provided at one swinging end of the locking member (23); a first sliding block (804) and a second sliding block (805) are provided on the beverage cylinder (8); the first sliding block (804) and the second sliding block (805) are respectively slideable on the slide grooves (601); When the beverage cylinder (8) slides to a set position relative to the support frame (6), the open end of the beverage cylinder (8) is covered with the cylinder cover (20), and at the same time, the second slider (805) triggers the induction switch (19), and the lock element (23) is rotated so that the lock hook (2301) hooks the first slider (804).

10. The high-efficiency and energy-saving snow melting machine according to claim 1, characterized in that: The outer screw (18) and the inner screw (17) are rotatably arranged relative to the beverage cylinder (8); a feed port (802) communicating with the ice-making outer chamber (801) is provided on the beverage cylinder (8); a beverage solution enters the ice-making outer chamber (801) and the ice-making inner chamber (D3) through the feed port (802); a discharge port (803) communicating with the ice-making outer chamber (801) is provided at the front end of the beverage cylinder (8); when the discharge port (803) is opened, the outer screw (18) rotates to squeeze the ice in the ice-making outer chamber (801) out of the discharge port (803).

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