Direct injection refrigeration type smoothie machine
By adopting a direct-injection refrigeration design in the smoothie machine, with the evaporation chamber built into the ice-making tank, the refrigerant is directly sprayed to evaporate and absorb heat, solving the problems of low refrigeration efficiency and complex production, and achieving efficient ice making and simplified production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-04-03
AI Technical Summary
The existing refrigeration method of smoothie machines has a long heat conduction path, resulting in low ice-making efficiency and a complex production process, which affects the refrigeration effect and efficiency.
It adopts a direct injection refrigeration design, with the evaporation chamber connected in series inside the ice-making bucket. The refrigerant is directly sprayed into the evaporation chamber to evaporate and absorb heat, eliminating the need for the process of wrapping metal pipes around the outer wall of the ice-making chamber. A scraper assembly is used to crush the ice and output it.
It improves ice-making efficiency, simplifies the production process, reduces energy consumption and production complexity, and ensures the stability of refrigeration effect.
Smart Images

Figure CN224080468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a smoothie machine, and more particularly to a direct-injection refrigeration smoothie machine. Background Technology
[0002] Currently, smoothie machines generally use compression refrigeration to cool water until it freezes, then crushes the ice before discharging it. Compression refrigeration involves connecting a compressor, condenser, dryer filter, capillary tube, and evaporator in series to form a refrigeration cycle. The evaporator is also positioned around the outer wall of the ice-making drum. When the compressor is running, the liquid refrigerant in the evaporator evaporates, absorbing heat and dissipating it from the ice-making drum, thus freezing the water inside.
[0003] However, in this refrigeration method, the heat in the water needs to pass through the ice bucket and evaporator in sequence before it can be absorbed by the refrigerant. The long heat conduction path results in low heat conduction efficiency, which in turn directly reduces the efficiency of ice making.
[0004] In addition, this type of refrigeration structure requires a lot of time to wind metal pipes onto the outer wall of the ice bucket as an evaporator during the production process, resulting in extremely low production efficiency. Moreover, the quality of winding also has a significant impact on the refrigeration efficiency.
[0005] Therefore, overcoming the aforementioned shortcomings has become an important issue that urgently needs to be addressed by those skilled in the art. Utility Model Content
[0006] This invention overcomes the shortcomings of the above-mentioned technologies and provides a direct-injection refrigeration smoothie machine.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A direct-injection refrigeration smoothie machine includes a frame 1, on which an ice-making bucket 2 and a compression refrigeration assembly 3 are fixed. The ice-making bucket 2 has an ice-making chamber 22 inside. The compression refrigeration assembly 3 includes an evaporation chamber 31 formed between the outer shell of the ice-making bucket 2 and the ice-making chamber 22. The evaporation chamber 31 is connected in series in the compression refrigeration assembly 3. The refrigerant of the compression refrigeration assembly 3 is directly sprayed into the evaporation chamber 31 for evaporation and heat absorption for cooling. The upper front end of the ice-making bucket 2 is provided with a water inlet 4 for adding water into the ice-making bucket 2, and the lower front end is provided with an openable ice outlet 5. Both the water inlet 4 and the ice outlet 5 are connected to the ice-making chamber 22. An integrated ice crushing and discharging assembly 6 for crushing ice and conveying ice to the ice outlet 5 is also fixed on the ice-making bucket 2.
[0009] Preferably, the compression refrigeration assembly 3 further includes a compressor 32, a condenser 33, a dryer filter 34, and a capillary tube 35 fixed to the lower part of the frame 1. The compressor 32, condenser 33, dryer filter 34, capillary tube 35, and evaporator 31 are sequentially connected end to end to form a refrigeration cycle.
[0010] Preferably, a nozzle 311 extending into the evaporation chamber 31 is connected to the refrigerant inlet 313 of the evaporation chamber 31, and the nozzle 311 is provided with a plurality of nozzle holes 312 facing the outer wall of the ice-making chamber 22.
[0011] Preferably, the integrated ice crushing assembly 6 includes a drive motor 61 fixed to the rear end of the outer side of the ice bucket 2 and a scraper 62 located in the ice-making cavity 22 and coaxially arranged with the ice bucket 2. The drive motor 61 is connected to the scraper 62 to drive the scraper 62 to rotate in the ice-making cavity 22. The scraper 62 is provided with a scraping blade 621 that extends spirally around the axis of the ice bucket 2.
[0012] Preferably, the front end of the inner cavity of the ice bucket 2 is also provided with a rotating seat 63 for the front end of the scraper 62 to be inserted and rotated so as to support the scraper 62.
[0013] Preferably, the ice bucket 2 includes a shell 21 fixed on the frame 1, the ice-making chamber 22 is located inside the shell 21 with its opening facing forward, the evaporation chamber 31 is located outside the wall of the ice-making chamber 22, and the front end of the shell 21 can also be detachably connected to an end cap 23 for sealing the opening of the ice-making chamber 22, the water inlet 4 is located on the upper part of the end cap 23, and the ice outlet 5 is located on the lower part of the end cap 23.
[0014] Preferably, the ice-making cavity 22 is made of stainless steel.
[0015] Preferably, the front end of the ice bucket 2 is hinged with a first sealing cover 24 that can rotate to open / close the ice outlet 5. The ice bucket 2 is also hinged with a handle 25 for driving the first sealing cover 24 to rotate. The handle 25 and the first sealing cover 24 are connected by a linkage structure. The hinge of the first sealing cover 24 is also provided with a reset torsion spring 26 for driving the first sealing cover 24 to close and reset.
[0016] Preferably, the ice bucket 2 is also provided with a second sealing cover 27 that can slide back and forth. The second sealing cover 27 slides forward to cover the water inlet 4 and slides backward to expose the water inlet 4.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. The ice blender in this case allows the refrigerant to evaporate and absorb heat directly inside the ice bucket by connecting the evaporation chamber inside the ice bucket in series with the compression refrigeration component, without having to go through layers of heat conduction. After simplifying the heat conduction path, the efficiency of heat exchange can be greatly improved, which also greatly improves the ice-making efficiency, while reducing energy consumption.
[0019] 2. Since the ice blender in this case uses an evaporation chamber instead of a traditional evaporator, it eliminates the complicated process of wrapping metal pipes around the outer wall of the ice-making chamber, greatly simplifying the production process, improving production efficiency, and avoiding the problem of affecting the cooling effect due to improper wrapping. Attached Figure Description
[0020] Figure 1 This is a product illustration of the smoothie machine in this case, which includes the product casing.
[0021] Figure 2 This is one of the schematic diagrams of the smoothie machine in this case.
[0022] Figure 3 This is the second schematic diagram of the smoothie machine in this case.
[0023] Figure 4 This is a cross-sectional schematic diagram of the ice bucket in this case.
[0024] Figure 5 This is the case Figure 4 Enlarged view of section “B”.
[0025] Figure 6 This is a schematic diagram of the internal structure of the ice bucket in this case, with a section of the ice bucket cut out.
[0026] Figure 7 This is a diagram illustrating the explosion of the ice bucket in this case. Detailed Implementation
[0027] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art:
[0028] like Figures 1 to 7As shown, a direct-injection refrigeration smoothie machine includes a frame 1, on which an ice-making bucket 2 and a compression refrigeration assembly 3 are fixed. The ice-making bucket 2 has an ice-making chamber 22 inside. The compression refrigeration assembly 3 includes an evaporation chamber 31 formed between the outer shell of the ice-making bucket 2 and the ice-making chamber 22. The evaporation chamber 31 is connected in series in the compression refrigeration assembly 3. The refrigerant of the compression refrigeration assembly 3 is directly sprayed into the evaporation chamber 31 for evaporation and heat absorption for cooling. The upper front end of the ice-making bucket 2 is provided with a water inlet 4 for adding water into the ice-making bucket 2, and the lower front end is provided with an openable ice outlet 5. Both the water inlet 4 and the ice outlet 5 are connected to the ice-making chamber 22. The ice-making bucket 2 is also fixed with an integrated ice crushing and discharging assembly 6 for crushing ice and conveying ice to the ice outlet 5.
[0029] This direct-injection refrigeration smoothie machine features an evaporation chamber 31 within the ice-making bucket 2. This evaporation chamber 31 is connected in series within the compression refrigeration assembly 3, replacing the position of the evaporator. The low-temperature, low-pressure liquid refrigerant, processed by the compression refrigeration assembly 3, enters the evaporation chamber 31, where it absorbs heat and evaporates into a gaseous state, thus cooling the ice-making chamber 22. The refrigerant then continues to circulate within the compression refrigeration assembly 3. Once the water in the ice-making chamber 22 freezes at the low temperature, the integrated ice-crushing assembly 6 can be controlled to crush the ice in the ice-making chamber 22. Simultaneously, the integrated ice-crushing assembly 6 pushes the ice towards the ice outlet 5 for easy dispensing to the user.
[0030] As described above, the slush machine of this invention allows the refrigerant to evaporate and absorb heat directly within the ice-making bucket 2 by connecting the evaporator chamber 31 inside the ice-making bucket 2 in series with the compression refrigeration assembly 3, without the need for multiple layers of heat conduction. This simplified heat conduction path significantly improves heat exchange efficiency, resulting in a substantial increase in ice-making efficiency and reduced energy consumption. Furthermore, since the slush machine uses the evaporator chamber 31 instead of a traditional evaporator, it eliminates the complex process of winding metal pipes around the outer wall of the ice-making chamber 22, greatly simplifying the production process, improving production efficiency, and avoiding the problem of improper winding affecting the refrigeration effect.
[0031] like Figure 2 and 3 As shown, preferably, the compression refrigeration assembly 3 further includes a compressor 32, a condenser 33, a dryer filter 34, and a capillary tube 35 fixed to the lower part of the frame 1. The compressor 32, condenser 33, dryer filter 34, capillary tube 35, and evaporator 31 are sequentially connected end to end to form a refrigeration cycle. In this way, the refrigerant can be driven to operate continuously through the refrigeration cycle, so that the refrigerant continuously absorbs heat and evaporates at the evaporator 31 to cool down.
[0032] Specifically, the evaporation chamber 31 is provided with a refrigerant inlet 313 connected to the capillary tube 35 and a refrigerant outlet 314 connected to the compressor 32. In this way, the low-temperature and low-pressure liquid refrigerant output from the end of the capillary tube 35 can enter the evaporation chamber 31 through the refrigerant inlet 313, while the low-temperature and low-pressure gaseous refrigerant formed after absorbing heat and evaporating can re-enter the compressor 32 from the refrigerant outlet 314 for the next round of compression.
[0033] like Figures 4 to 6 As shown, preferably, a nozzle 311 extending into the evaporation chamber 31 is connected to the refrigerant inlet 313 of the evaporation chamber 31, and the nozzle 311 is provided with a plurality of nozzle holes 312 facing the outer wall of the ice-making chamber 22.
[0034] As described above, the low-temperature, low-pressure liquid refrigerant does not diffuse freely in all directions after entering the evaporation chamber 31, but instead enters the nozzle 311. The nozzle 311 is provided with nozzles 312 facing the outer wall of the ice-making chamber 22. This ensures that the refrigerant will be sprayed onto the surface of the evaporation chamber 31 near the ice-making chamber 22 under subsequent pressure and absorb heat and evaporate there. This ensures that the evaporation of the refrigerant can effectively cool the ice-making chamber 22 and cause the water inside to freeze.
[0035] like Figures 4 to 7 As shown, preferably, the integrated ice crushing assembly 6 includes a drive motor 61 fixed to the rear end of the outer side of the ice bucket 2 and a scraper 62 located in the ice-making cavity 22 and coaxially arranged with the ice bucket 2. The drive motor 61 is driven to drive the scraper 62 to rotate in the ice-making cavity 22. The scraper 62 is provided with a scraping blade 621 that extends spirally around the axis of the ice bucket 2.
[0036] As described above, the integrated ice crushing and discharging assembly 6 of this case includes a drive motor 61 and a scraper 62, and the scraper 62 is provided with a spirally extending scraping blade 621. Thus, when the drive motor 61 drives the scraper 62 to rotate, the scraping blade 621 can crush the ice. At the same time, since the scraping blade 621 is spirally extended, it can gradually push the crushed ice towards the ice outlet while crushing the ice, thereby completing the crushing and discharging of ice simultaneously.
[0037] like Figure 6 and Figure 7 As shown, preferably, the front end of the inner cavity of the ice bucket 2 is also provided with a rotating seat 63 for the front end of the scraper 62 to be inserted and rotated so as to support the scraper 62. In this way, the rear end of the scraper 62 is connected to the drive motor 61 and driven to rotate by the drive motor 61, while the front end of the scraper 62 can be fixed on the rotating seat 63 to rotate. This allows the scraper 62 to maintain a balance of front and rear forces when rotating, and avoids the scraper 62 from tilting during the ice crushing process, which would affect the ice crushing quality and reduce the life of the scraper 62.
[0038] like Figures 2 to 7 As shown, preferably, the ice bucket 2 includes a shell 21 fixed to the frame 1, an ice-making chamber 22 located inside the shell 21 with its opening facing forward, and an evaporation chamber 31 located outside the wall of the ice-making chamber 22. The front end of the shell 21 is detachably connected to an end cap 23 for sealing the opening of the ice-making chamber 22. The water inlet 4 is located on the upper part of the end cap 23, and the ice outlet 5 is located on the lower part of the end cap 23. In this way, the evaporation chamber 31 can be protected by the shell 21, preventing damage to the evaporation chamber 31 from external impacts that could cause the refrigeration cycle to fail. Simultaneously, using the detachable end cap 23 to seal the ice-making chamber 22 also facilitates cleaning the inside of the ice bucket 2 after long-term use.
[0039] Specifically, the rotating seat 63 is rotatably connected to the end cover 23.
[0040] Preferably, the ice-making cavity 22 is made of stainless steel.
[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, preferably, the front end of the ice bucket 2 is hinged with a first sealing cover 24 that can rotate to open / close the ice outlet 5. The ice bucket 2 is also hinged with a handle 25 for driving the first sealing cover 24 to rotate. The handle 25 and the first sealing cover 24 are connected by a linkage structure. The hinge of the first sealing cover 24 is also provided with a return torsion spring 26 for driving the first sealing cover 24 to close and reset. In this way, when ice is not needed, the return torsion spring 26 can provide a tendency for the first sealing cover 24 to rotate and close, ensuring that the first sealing cover 24 can block the ice outlet 5 to prevent water leakage. When it is necessary to open the ice outlet 5 to dispense ice, the handle 25 can be rotated, and the first sealing cover 24 can be rotated and opened by overcoming the elastic force of the return torsion spring 26 under the transmission of the linkage structure.
[0042] Specifically, the first sealing cover 24, handle 25, connecting rod structure and reset torsion spring 26 are all connected to the end cover 23.
[0043] like Figure 1 As shown, preferably, the ice bucket 2 is also provided with a second sealing cover 27 that can slide back and forth. The second sealing cover 27 slides forward to cover the water inlet 4 and slides backward to expose the water inlet 4. In this way, when it is not necessary to add water to the ice bucket 2, the second sealing cover 27 can be slid to cover the water inlet 4 to prevent foreign objects from entering the ice bucket 2 and causing contamination. The water inlet 4 is only exposed when water needs to be added. At the same time, when making ice, covering the water inlet 4 with the second sealing cover 27 can also prevent external heat from directly entering the ice bucket 2 through the water inlet 4, which would reduce the ice-making efficiency.
[0044] As stated above, this case protects a direct-injection refrigeration smoothie machine, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.
Claims
1. A direct injection refrigerated smoothie maker characterised in that The ice maker comprises a rack (1), an ice making barrel (2) and a compression refrigeration assembly (3) fixed on the rack (1), the ice making barrel (2) is provided with an ice making cavity (22), the compression refrigeration assembly (3) comprises an evaporation cavity (31) formed between the ice making barrel (2) shell and the ice making cavity (22), the evaporation cavity (31) is connected in series in the compression refrigeration assembly (3), the refrigerant of the compression refrigeration assembly (3) is directly sprayed into the evaporation cavity (31) to evaporate and absorb heat for refrigeration, the ice making barrel (2) is provided with a water inlet (4) for adding water into the ice making barrel (2) at the upper front end of the ice making barrel (2) and an ice outlet (5) which can be opened and closed at the lower front end of the ice making barrel (2), the water inlet (4) and the ice outlet (5) are communicated with the ice making cavity (22), the ice making barrel (2) is further fixed with a crushing and ice conveying integrated assembly (6) for crushing ice and conveying the ice to the ice outlet (5).
2. A direct injection refrigerated smoothie maker as claimed in claim 1, wherein The compression refrigeration assembly (3) further comprises a compressor (32), a condenser (33), a drying filter (34) and a capillary tube (35) fixed on the lower part of the rack (1), the compressor (32), the condenser (33), the drying filter (34), the capillary tube (35) and the evaporation cavity (31) are sequentially and circularly connected to form a refrigeration cycle.
3. A direct injection refrigerated smoothie machine according to either one of claims 1 or 2, characterized in that The evaporation cavity (31) is connected with a spray pipe (311) extending into the evaporation cavity (31) at the refrigerant inlet (313) of the evaporation cavity (31), and a plurality of spray holes (312) are arranged on the spray pipe (311) and face the outer wall of the ice making cavity (22).
4. The direct injection refrigerated smoothie machine of claim 1, wherein The crushing and ice conveying integrated assembly (6) comprises a driving motor (61) fixed on the rear end of the ice making barrel (2) and a scraper (62) coaxially arranged with the ice making barrel (2) in the ice making cavity (22), the driving motor (61) is drivingly connected with the scraper (62) to drive the scraper (62) to rotate in the ice making cavity (22), and the scraper (62) is provided with a scraping edge (621) extending spirally around the axis of the ice making barrel (2).
5. A direct injection refrigerated smoothie maker as claimed in claim 4, wherein The ice making barrel (2) is further provided with a rotating seat (63) at the front end of the inner cavity of the ice making barrel (2), the front end of the scraper (62) is inserted into the rotating seat (63) to rotate so as to support the rotation of the scraper (62).
6. The direct injection refrigerated smoothie machine of claim 1, wherein The ice making barrel (2) comprises an outer shell (21) fixed on the rack (1), the ice making cavity (22) is located in the outer shell (21) and opens forward, the evaporation cavity (31) is located outside the wall of the ice making cavity (22), and the front end of the outer shell (21) is further detachably connected with an end cover (23) for sealing the opening of the ice making cavity (22), the water inlet (4) is arranged on the upper part of the end cover (23), and the ice outlet (5) is arranged on the lower part of the end cover (23).
7. A direct injection refrigerated smoothie maker as claimed in claim 6, wherein The ice making cavity (22) is made of stainless steel.
8. The direct injection refrigerated slush machine of any one of claims 1 or 6, wherein A first sealing cover (24) capable of rotating to open / close the ice outlet (5) is hingedly connected to the front end of the ice making barrel (2), a handle (25) for driving the first sealing cover (24) to rotate is further hingedly connected to the ice making barrel (2), the handle (25) and the first sealing cover (24) are drivingly connected through a connecting rod structure, and a reset torsional spring (26) for driving the first sealing cover (24) to close and reset is further arranged at the hinge connection of the first sealing cover (24).
9. The direct injection refrigerated smoothie machine of claim 1, wherein The ice making bucket (2) is further provided with a second sealing cover (27) capable of sliding forward and backward, the second sealing cover (27) covers the water inlet (4) by sliding forward and exposes the water inlet (4) by sliding backward.