Cooling system and snowflake ice maker

Abstract

The utility model discloses a cooling system and a snowflake ice maker, and relates to the technical field of intelligent household appliances. The condenser is connected with the compressor; a communicating channel is formed in a side plate on any side of the evaporator, and the communicating channel extends towards the interior of the evaporator; the first end of the communicating pipe extends into the evaporator through the communicating channel, a gap is formed between the communicating pipe and the communicating channel, the first end of the backflow pipe is connected with the compressor, and the second end of the backflow pipe is connected with the communicating pipe; the first end of the liquid inlet pipe is connected with the condenser, and the second end of the liquid inlet pipe penetrates through the first end of the communicating pipe and extends into the evaporator; gas generated by the evaporator flows into the communicating pipe through a gap between the communicating pipe and the communicating channel, then enters the backflow pipe through the communicating pipe and flows back to the compressor.

Description

Technical Field

[0001] This utility model relates to the field of smart home appliance technology, and in particular to a cooling system and a shaved ice machine. Background Technology

[0002] A shaved ice machine is a device used to rapidly freeze liquid materials into ice and scrape the ice into shaved ice that can be eaten immediately. Suitable for homes, restaurants, and other places, it can make smoothies, cold drinks, and desserts, enhancing the taste and appearance of beverages. The shaved ice machine cools water through a compression refrigeration cycle, combined with ice-scraping technology on the evaporator surface, to produce fine shaved ice. However, due to the numerous internal parts and compact structure of the shaved ice machine, the compression refrigeration cycle requires connecting both the refrigerant input pipe and the return pipe to the evaporator simultaneously, resulting in a large space requirement. Furthermore, after the liquid refrigerant enters the evaporator through the inlet pipe and vaporizes to absorb heat, it accumulates at the outlet of the return pipe, potentially leading to incomplete evaporation within the evaporator. Incompletely vaporized refrigerant cannot effectively absorb heat, reducing the evaporator's heat exchange efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a cooling system and a shaved ice machine that improves the internal space utilization of the shaved ice machine while preventing refrigerant from accumulating and returning at the return pipe inlet.

[0004] To address the aforementioned technical problems, this utility model provides a cooling system for cooling a snow ice machine. The cooling system includes: a compressor; a condenser connected to the compressor; an evaporator rotatably mounted on the snow ice machine; a connecting channel on either side of the evaporator extending into the evaporator; a connecting pipe, the first end of which extends into the evaporator through the connecting channel, with a gap between the connecting pipe and the connecting channel, and the second end of the connecting pipe being closed; a return pipe, the first end of which is connected to the compressor, and the second end of which is connected to the connecting pipe; and a liquid inlet pipe, the first end of which is connected to the condenser, and the second end of which passes through the first end of the connecting pipe and extends into the evaporator; gas generated by the evaporator flows into the connecting pipe through the gap between the connecting pipe and the connecting channel, then enters the return pipe through the connecting pipe, and returns to the compressor.

[0005] As an improvement to the above solution, the connecting pipe includes: a sealing cap, fixed to the end of the first end of the connecting pipe, the second end of the liquid inlet pipe passing through the sealing cap and entering the evaporator; and a reflux hole, disposed on the side wall of the connecting pipe near the first end, the reflux hole being entirely or partially located inside the evaporator, the gas accumulating in the gap between the connecting pipe and the connecting channel, and then entering the connecting pipe through the reflux hole.

[0006] As an improvement to the above solution, the liquid outlet at the second end of the inlet pipe is positioned opposite to the return direction of the return hole.

[0007] As an improvement to the above solution, the inlet pipe located outside the connecting pipe is spirally wound around the outer surface of the return pipe.

[0008] As an improvement to the above solution, the connecting channel extends into the evaporator and has a return gap on the pipe wall. The cooling system also includes an oil return component, which is connected to the pipe wall of the connecting channel. The oil return component is used to introduce the oil in the condenser into the return gap, and then flow into the connecting pipe through the return gap.

[0009] As an improvement to the above solution, the oil return component includes: a first rod, one end of which is connected to any side wall of the return notch; and a second rod, which is connected to the other end of the first rod, with the side of the second rod fitting against the side wall of the evaporator.

[0010] As an improvement to the above solution, a first right-angle groove is opened on the side of the first rod body near the cover plate of the evaporator, and the first right-angle groove and the cover plate of the evaporator together form an oil return channel.

[0011] As an improvement to the above solution, a second right-angle groove is provided on the side of the second rod near the cover plate of the evaporator, and the second right-angle groove is connected to the first right-angle groove.

[0012] As an improvement to the above solution, the inlet tube is a capillary tube.

[0013] As an improvement to the above solution, the evaporator includes a drum and cover plates disposed at both ends of the drum.

[0014] As an improvement to the above solution, a sealing unit is provided between the connecting channel and the connecting pipe.

[0015] In a second aspect, this utility model provides a shaved ice machine, wherein the shaved ice machine is equipped with the aforementioned cooling system.

[0016] The beneficial effects of implementing this utility model are as follows:

[0017] The liquid storage tank of this utility model connects the return pipe and the connecting pipe, and then the liquid inlet pipe passes through the connecting pipe into the evaporator. Only one opening needs to be set on the side plate of the evaporator to complete the liquid inlet and gas recovery, which greatly improves the space utilization rate inside the snow melting machine. At the same time, by collecting the gas generated after heat exchange in the gap between the connecting pipe and the connecting channel, and then flowing into the connecting pipe through the gap, the gas is prevented from accumulating at the opening of the connecting pipe and returning to the air.

[0018] This utility model discloses a shaved ice machine that improves the internal space utilization rate by optimizing the pipeline design of the liquid inlet pipe and the return pipe. At the same time, by setting up an oil return component to collect and return the oil in the evaporator, it avoids long-term damage to the evaporator caused by the oil, reduces the failure rate of the equipment, and improves the user experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a cooling system in this embodiment;

[0020] Figure 2 This is a partial exploded view of the evaporator structure of a cooling system in this embodiment;

[0021] Figure 3 This is a partial structural diagram of the evaporator of a cooling system in this embodiment;

[0022] Figure 4 This is a schematic diagram of the oil return component of a cooling system in this embodiment.

[0023] The reference numerals in the attached drawings are explained as follows: 100, compressor; 110, outlet pipe; 120, return pipe; 200, condenser; 210, liquid inlet pipe; 300, evaporator; 310, cover plate; 320, drum; 330, connecting channel; 331, return notch; 400, connecting pipe; 410, sealing cover; 420, return hole; 500, oil return component; 510, first rod; 511, first right-angle groove; 520, second rod; 521, second right-angle groove. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0025] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a cooling system in this embodiment; Figure 2This is a partial exploded view of the evaporator structure of a cooling system in this embodiment. As shown in the figure, the cooling system is used to refrigerate a snow ice machine. The cooling system includes: a compressor 100, which contains refrigerant and is used to compress the refrigerant into a high-temperature, high-pressure first gas, which is then discharged through an outlet pipe 110; a condenser 200, connected to the outlet pipe 110 of the compressor 100, which is used to condense the first gas into a high-pressure liquid refrigerant; an evaporator 300, rotatably mounted on the snow ice machine; a connecting channel 330 on one side plate of the evaporator 300, with the first end of the connecting channel 330 extending into the evaporator 300; a connecting pipe 400, the first end of which extends into the evaporator 300 through the connecting channel 330, with a gap between the connecting pipe 400 and the connecting channel 330, and the second end of the connecting pipe 400 closed; and a return pipe 120, the first end of which is connected to the compressor 100. The second end of the return pipe 120 is connected to the connecting pipe 400; the first end of the liquid inlet pipe 210 is connected to the condenser 200, and the second end of the liquid inlet pipe 210 passes through the first end of the connecting pipe 400 and extends into the evaporator 300; the liquid refrigerant enters the evaporator 300 through the liquid inlet pipe 210, vaporizes and absorbs heat to form a second gas, and the second gas flows into the connecting pipe 400 through the gap between the connecting pipe 400 and the connecting channel 330, and the connecting pipe 400 enters the return pipe 120. The gas then flows back to the condenser 200. By connecting the return pipe 120 to the connecting pipe 400, and then passing the liquid inlet pipe 210 through the connecting pipe 400 into the evaporator 300, only one opening needs to be set on the side plate of the evaporator 300 to complete the liquid inlet and gas recovery, which greatly improves the space utilization rate inside the snow ice machine. At the same time, by collecting the second gas in the gap between the connecting pipe 400 and the connecting channel 330, and then flowing into the connecting pipe through the gap, the second gas is prevented from accumulating at the opening of the connecting pipe 400 and returning to the air.

[0026] Preferably, the connecting pipe 400 is fixedly connected to the return pipe 120, and the connecting channel 330 rotates synchronously with the evaporator 300 around the connecting pipe 400.

[0027] See Figure 2 and Figure 3 , Figure 3 This is a partial structural diagram of the evaporator of a cooling system in this embodiment;

[0028] Furthermore, in this embodiment, the connecting pipe 400 includes: a sealing cap 410, fixed to the end of the first end of the connecting pipe 400, the second end of the liquid inlet pipe 210 passing through the sealing cap 410 and entering the evaporator 300; and a reflux hole 420, disposed on the side wall of the connecting pipe 400 near the first end, the reflux hole 420 being wholly or partially located inside the evaporator 300, the second gas accumulating in the gap between the connecting pipe 400 and the connecting channel 330, and then entering the connecting pipe 400 through the reflux hole 420, thus preventing the second gas from accumulating at the opening of the connecting pipe 400 and returning to the source.

[0029] Preferably, the liquid outlet of the second end of the inlet pipe is positioned opposite to the return direction of the return hole.

[0030] See Figure 3 and Figure 4 , Figure 4 This is a schematic diagram of the structure of the oil return component 500 of a cooling system in this embodiment;

[0031] Furthermore, in this embodiment, the connecting channel 330 extends into the evaporator 300 and has a return notch 331 on its pipe wall. The cooling system also includes an oil return component 500, which is connected to the pipe wall of the connecting channel 330. The oil return component 500 is used to introduce oil from the condenser 200 into the return notch 331, and then flow into the connecting pipe 400 through the return notch 331. The oil then enters the return pipe 120 through the connecting pipe 400 and returns to the compressor 100 through the return pipe 120. By setting the oil return component 500 to collect and return the oil in the evaporator 300, long-term damage to the evaporator 300 by the oil is avoided.

[0032] Furthermore, in this embodiment, the oil return component 500 includes: a first rod 510, one end of which is connected to any side wall of the return notch; and a second rod 520, connected to the other end of the first rod 510, with the side of the second rod 520 fitting against the side wall of the evaporator 300. The first rod 510 has a first right-angle groove 511 on the side near the cover plate 310 of the evaporator 300, and the first right-angle groove 511 and the cover plate 310 of the evaporator 300 together form an oil return channel. The second rod 520 has a second right-angle groove 521 on the side near the cover plate 310 of the evaporator 300, and the second right-angle groove 521 communicates with the first right-angle groove 511. During operation, the oil return component 500 rotates with the evaporator 300, collecting the oil in the evaporator 300 into the first right-angle groove 511 or the second right-angle groove 521. Due to the centripetal force generated during rotation, the oil in the first right-angle groove 511 or the second right-angle groove 521 deposits through the oil return channel towards the return notch. When the return notch rotates to coincide with the return hole, the oil enters the connecting pipe 400 with the centripetal force, then flows through the connecting pipe 400 into the return cover, and finally flows into the compressor 100 for recycling. By setting the oil return component 500, it is possible to effectively prevent oil film from covering the inner wall of the evaporator 300, ensuring normal temperature transfer during evaporation, maintaining cooling capacity, and improving the service life of the evaporator 300.

[0033] Preferably, the connection between the first rod body 510 and the second rod body 520 is provided with rounded corners, which can optimize the flow direction of the collected oil and make the oil flow more smoothly to the return oil channel.

[0034] See Figure 1 and Figure 2 Furthermore, in this embodiment, the inlet pipe 210 located outside the connecting pipe 400 is spirally wound around the outer surface of the return pipe 120. This can effectively improve the space utilization rate inside the shaved ice machine.

[0035] Furthermore, in this embodiment, the inlet pipe 210 is a capillary tube. The capillary tube is a long, thin copper tube with no moving parts, resulting in low cost and an extremely low failure rate, making it suitable for small or low-cost models.

[0036] Furthermore, in this embodiment, the evaporator 300 includes a drum 320 and cover plates 310 disposed at both ends of the drum 320; by optimizing the pipeline design of the liquid inlet pipe 210 and the return pipe 120, the space utilization rate inside the slush ice machine is improved; at the same time, by setting the oil return component 500 to collect and return the oil in the evaporator 300, the oil is prevented from causing long-term damage to the evaporator 300, reducing the failure rate of the equipment and improving the user experience.

[0037] Furthermore, in this embodiment, a sealing unit is provided between the connecting channel 330 and the connecting pipe 400, and the second gas accumulates in the gap between the connecting channel 330 and the connecting pipe 400 above the sealing unit; by providing the sealing unit, the second gas is prevented from overflowing from the gap between the connecting channel 330 and the connecting pipe 400 and contaminating the internal parts of the shaved ice machine.

[0038] This embodiment provides a shaved ice machine in a second aspect, wherein the shaved ice machine is equipped with the aforementioned cooling system. By optimizing the pipeline design of the liquid inlet pipe 210 and the return pipe 120, the internal space utilization of the shaved ice machine is improved; at the same time, by setting up the oil return component 500 to collect and return the oil in the evaporator 300, long-term damage to the evaporator 300 by the oil is avoided, the failure rate of the equipment is reduced, and the user experience is improved.

[0039] Specifically, the compressor 100 compresses the refrigerant into a high-temperature, high-pressure first gas, and the condenser 200 condenses the first gas into a high-pressure liquid refrigerant. The liquid refrigerant enters the evaporator 300 through the liquid inlet pipe 210 to vaporize and absorb heat. At this time, the slush ice machine injects water onto the outer surface of the evaporator 300, which condenses into ice after absorbing heat. The slush ice machine then scrapes the ice layer on the surface of the evaporator 300 into slush ice to complete the ice making process. The liquid refrigerant enters the evaporator 300 through the liquid inlet pipe 210 to vaporize and absorb heat to form a second gas. The second gas enters the return pipe 120 through the connecting pipe 400 and then flows back to the compressor 100 for recycling, thus realizing a refrigeration cycle.

[0040] As can be seen from the above, in this utility model, by connecting the return pipe and the connecting pipe, and then passing the liquid inlet pipe through the connecting pipe into the evaporator, only one opening needs to be set on the side plate of the evaporator to complete the liquid inlet and gas recovery, which greatly improves the space utilization rate inside the snow ice machine; by collecting the gas generated after heat exchange in the gap between the connecting pipe and the connecting channel, and then flowing into the connecting pipe through the gap, the gas is prevented from accumulating at the pipe opening of the connecting pipe and returning; at the same time, by setting an oil return component, the oil in the evaporator is collected and returned, avoiding long-term damage to the evaporator by the oil.

[0041] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A cooling system for use in a snow cone machine, comprising: The cooling system comprises: a compressor; a condenser connected with the compressor; an evaporator rotatably arranged in the snow ice machine, a side plate on any side of the evaporator being provided with a communication passage extending towards the evaporator; a communication pipe having a first end extending into the evaporator through the communication passage, a gap being formed between the communication pipe and the communication passage, and a second end of the communication pipe being closed; a return pipe having a first end connected with the compressor and a second end connected with the communication pipe; a liquid inlet pipe having a first end connected with the condenser and a second end extending into the evaporator through the first end of the communication pipe; the gas generated by the evaporator flows into the communication pipe through the gap between the communication pipe and the communication passage, and then flows into the return pipe through the communication pipe and returns to the compressor.

2. The cooling system of claim 1, wherein, The communication pipe comprises: a sealing cover fixed to the end of the first end of the communication pipe, the second end of the liquid inlet pipe extending into the evaporator through the sealing cover; a return hole arranged on the side wall of the communication pipe close to the first end, the return hole being located in the evaporator in whole or in part, and the gas gathered in the gap between the communication pipe and the communication passage flows into the communication pipe through the return hole.

3. The cooling system of claim 2, wherein, The liquid outlet of the second end of the liquid inlet pipe is arranged opposite to the return direction of the return hole.

4. The cooling system of claim 1, wherein, The liquid inlet pipe spirally wound outside the communication pipe is wound on the outer surface of the return pipe.

5. The cooling system of claim 2, wherein, The communication passage extending to the pipe wall in the evaporator is provided with a return gap, and the cooling system further comprises an oil return member connected with the pipe wall of the communication passage, the oil return member being used to introduce the oil in the condenser into the return gap and then flow into the communication pipe through the return gap.

6. The cooling system of claim 5, wherein, The oil return member comprises: a first rod body having one end connected with any side wall of the return gap; a second rod body connected with the other end of the first rod body, the side edge of the second rod body being attached to the side wall of the evaporator.

7. The cooling system of claim 6, wherein, The first rod body is provided with a first right-angle groove on the side close to the cover plate of the evaporator, and the first right-angle groove and the cover plate of the evaporator form an oil return passage; The second rod body is provided with a second right-angle groove on the side close to the cover plate of the evaporator, and the second right-angle groove is in communication with the first right-angle groove.

8. The cooling system of claim 1, wherein, The evaporator comprises a roller and cover plates arranged at both ends of the roller.

9. The cooling system of claim 1, wherein, A sealing unit is arranged between the communication passage and the communication pipe.

10. A snow cone machine characterized by, The snow ice machine is provided with the cooling system as claimed in any one of claims 1-9.

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