Evaporator and refrigeration equipment

Abstract

The invention discloses an evaporator and refrigeration equipment. The evaporator comprises an evaporator shell, and a condensation input pipeline, an air guide pipe and a refrigerant area are arranged in the evaporator shell; the refrigerant area is arranged on the inner wall of the evaporator shell in a surrounding mode, a refrigerant channel is defined between the refrigerant area and the evaporator shell, and condensed liquid in the refrigerant channel acts on the inner wall of the evaporator shell; the input end of the refrigerant channel is connected with a condenser through the condensation input pipeline, and the output end of the refrigerant channel is connected with a compressor through the air guide pipe. The heat conduction efficiency and the cold conduction performance of the evaporator can be improved, the overall structure is simple, and the production cost is low.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to an evaporator and a refrigeration device. Background Art

[0002] The evaporator is an important component in refrigeration equipment, which is a heat exchanger. The low-temperature condensed liquid passes through the evaporator to exchange heat with the outside air, vaporizes and absorbs heat to achieve the refrigeration effect. At present, the evaporator of most refrigeration equipment (such as smoothie machines) generally includes an evaporator body and a coil. The evaporator body includes an inner and outer shell, and the coil is sleeved on the inner shell and in contact with the outer shell wall. Condensed liquid is passed into the coil, and the condensed liquid exchanges heat with the outside through the coil wall and the outer shell wall of the evaporator body to achieve the refrigeration effect. However, the heat of the above structure needs to be conducted through the coil wall and the outer shell wall of the evaporator body. Due to the large amount of conduction medium, the heat conduction efficiency is low, and the overall structure is relatively complex and the cost is high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an evaporator and a refrigeration device, which can improve the heat conduction efficiency and the cooling performance of the evaporator, and have a simple overall structure and low production cost.

[0004] In order to solve the above technical problems, the present invention provides an evaporator, including an evaporator shell, in which a condensation input pipe, an air duct and a refrigerant area are provided; the refrigerant area is surrounded by the inner wall of the evaporator shell, and at least one refrigerant channel is formed between the refrigerant area and the evaporator shell, and the condensed liquid in the refrigerant channel acts on the inner wall of the evaporator shell; the input end of the refrigerant channel is connected to the condenser through the condensation input pipe, and the output end of the refrigerant channel is connected to the compressor through the air duct.

[0005] As an improvement of the above-mentioned scheme, the refrigerant zone includes a refrigerant shell and at least one spoiler spiral blade, the refrigerant shell is sealed and connected to the evaporator shell, the spoiler spiral blade is located between the refrigerant shell and the evaporator shell, and the spoiler spiral blade, the refrigerant shell and the evaporator shell enclose at least one refrigerant channel.

[0006] As an improvement of the above-mentioned scheme, a plurality of the spoiler spiral blades are provided between the refrigerant shell and the evaporator shell, and a plurality of the refrigerant channels are formed between the refrigerant shell, the evaporator shell and the plurality of the spoiler spiral blades; the plurality of the refrigerant channels are arranged in parallel, and the plurality of the refrigerant channels are separated by the vortex spiral blades.

[0007] As an improvement of the above solution, the spoiler spiral blade is made of metal or plastic.

[0008] As an improvement of the above scheme, the two ends of the refrigerant shell are respectively provided with an input pipe opening and an output pipe opening which are connected to the refrigerant channel one by one; the condensation input pipe is connected to the refrigerant channel through the input pipe opening, and the air guide pipe is connected to the refrigerant channel through the output pipe opening.

[0009] As an improvement of the above-mentioned solution, one end of the refrigerant shell is provided with a limiting ring extending outward, and the limiting ring is sealed to one end of the evaporator shell; the other end of the evaporator shell away from the limiting ring is provided with a supporting ring extending inward, and the supporting ring is sealed to the other end of the refrigerant shell.

[0010] As an improvement of the above scheme, the diameter of the evaporator shell is A, the thickness of the evaporator shell is B, A is 60-100mm, and B is 0.5-1.2mm; the width of the refrigerant channel is equal to the pitch of the spoiler spiral blade, the pitch of the spoiler spiral blade is C, the width of the spoiler spiral blade is E, the thickness of the spoiler spiral blade is F, C is 5-20mm, E is 2-10mm, and F is 0.4-2mm; the ratio between the thickness of the evaporator shell and the pitch of the spoiler spiral blade is G, and G satisfies 0.06≤G≤0.1.

[0011] As an improvement of the above solution, A is 80-90 mm, B is 0.8-1.0 mm, C is 8-16 mm, E is 5-8 mm, F is 0.9-1.5 mm, and G satisfies 0.0625≤G≤0.1.

[0012] As an improvement of the above solution, the input pipe opening is provided with an inwardly extending input pipeline, and the output pipe opening is provided with an inwardly extending output pipeline.

[0013] As an improvement of the above-mentioned solution, the refrigerant shell is provided with a plurality of middle input pipe openings at intervals along the flow direction of the refrigerant channel, and the middle input pipe opening is connected to the refrigerant channel; the middle input pipe opening is located between the input pipe opening and the output pipe opening, and the middle input pipe opening is connected to the condenser through a corresponding condensation input pipe.

[0014] As an improvement of the above solution, the refrigerant area includes at least one spiral protrusion component, the protrusion component is sealed to the inner wall of the evaporator shell, and at least one refrigerant channel is enclosed between the inner cavity of the protrusion component and the evaporator shell.

[0015] As an improvement of the above scheme, the refrigerant area includes a plurality of spiral raised components, and a plurality of refrigerant channels are formed between the inner cavity of the raised components and the evaporator shell; the plurality of refrigerant channels are arranged in parallel, and the plurality of refrigerant channels are separated by the raised components.

[0016] As an improvement of the above scheme, the raised component and the inner wall of the evaporator shell are an integral stamping structure, and the two ends of the raised component are respectively provided with an input port and an output port that are connected to the refrigerant channel one by one; the condensation input pipe is connected to the refrigerant channel through the input port, and the air guide pipe is connected to the refrigerant channel through the output port.

[0017] As an improvement of the above solution, the raised component is provided with a plurality of middle input ports spaced apart along the flow direction of the refrigerant channel, and the middle input port is connected to the refrigerant channel; the middle input port is located between the input port and the output port, and the middle input port is connected to the condenser through a corresponding condensation input pipe.

[0018] As an improvement of the above solution, the cross section of the raised component is composed of a plurality of semicircles arranged in a row.

[0019] As an improvement of the above solution, two adjacent semicircles are in contact with each other.

[0020] As an improvement of the above scheme, the diameter of the evaporator shell is A, the thickness of the evaporator shell is B, A is 60-100 mm, and B is 0.5-1.2 mm; the width of the refrigerant channel is equal to the diameter of the raised part, the diameter of the raised part is D, the thickness of the raised part is H, D is 5-10 mm, and H is 0.4-0.8 mm; the ratio between the thickness of the evaporator shell and the diameter of the raised part is I, and I satisfies 0.1≤I≤0.12.

[0021] As an improvement of the above solution, A is 80-90 mm, B is 0.8-1.0 mm, D is 6-8 mm, H is 0.5-0.6 mm, and I satisfies 0.1≤I≤0.11.

[0022] As an improvement of the above solution, the cross-sectional width of the refrigerant channel changes from narrow to wide or from wide to narrow along its flow direction.

[0023] The present invention further provides a refrigeration device, comprising a body, wherein the evaporator is arranged in the body.

[0024] The beneficial effects of implementing the present invention are:

[0025] The overall structure of the present invention is simple, which can save assembly space, reduce production costs, and at the same time reduce heat conduction media and improve heat conduction efficiency; and by guiding the condensed liquid, the condensed liquid can be fully vaporized, further improving the heat conduction efficiency, thereby greatly improving the cooling performance of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a first embodiment of an evaporator of the present invention;

[0027] Figure 2 yes Figure 1 A schematic cross-sectional structural diagram of an evaporator;

[0028] Figure 3 yes Figure 1 A schematic diagram of the structure of the refrigerant area;

[0029] Figure 4 yes Figure 2 A partial enlarged structural diagram of part A;

[0030] Figure 5 yes Figure 2 A schematic diagram of a partial enlarged structure of part B;

[0031] Figure 6 is a schematic structural diagram of a second embodiment of an evaporator of the present invention;

[0032] Figure 7 is a structural schematic diagram of a third embodiment of an evaporator of the present invention;

[0033] Figure 8 is a schematic structural diagram of a fourth embodiment of an evaporator of the present invention;

[0034] Fig. 9 yes Figure 8 A schematic cross-sectional structural diagram of an evaporator;

[0035] Fig.10 yes Figure 8 A schematic diagram of the structure of the refrigerant area;

[0036] Fig.11 is a schematic structural diagram of a fifth embodiment of an evaporator of the present invention;

[0037] Fig.12 1 is a schematic structural diagram of a sixth embodiment of an evaporator according to the present invention. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] like Figures 1 to 3 As shown, Figures 1 to 3The schematic diagram of the structure of the first embodiment of the evaporator of the present invention is shown, which includes an evaporator shell 1, in which a condensation input pipe 2, an air guide pipe 3 and a refrigerant area 4 are arranged; the inner wall of the evaporator shell 1 is surrounded by the refrigerant area 4, and a refrigerant channel 5 is formed between the refrigerant area 4 and the evaporator shell 1, and the condensed liquid in the refrigerant channel 5 acts on the inner wall of the evaporator shell 1; the input end of the refrigerant channel 5 is connected to the condenser through the condensation input pipe 2, and the output end of the refrigerant channel 5 is connected to the compressor through the air guide pipe 3. When working, the condenser transports the condensed liquid to the refrigerant channel 5 through the condensation input pipe 2, and the condensed liquid flowing into the refrigerant channel 5 can directly absorb heat from the outside through the evaporator shell 1, that is, heat exchange with the outside air is realized, and the gas after the condensed liquid is vaporized will be discharged back to the compressor through the air guide pipe 3. Among them, the heat conduction area can be increased by surrounding the refrigerant area 4 on the inner wall of the evaporator shell 1. The condensed liquid only needs to pass through the evaporator shell 1 (that is, a single layer of heat-conducting medium) to achieve heat exchange with the outside world. By reducing the heat-conducting medium, the heat conduction efficiency can be effectively improved, thereby improving the cooling performance of the evaporator; and the overall structure can be simplified, saving assembly space and reducing production costs.

[0040] The refrigerant area 4 includes a refrigerant housing 41 and a spoiler spiral sheet 42, wherein the refrigerant housing 41 is sealedly connected to the evaporator housing 1, so that a closed space is formed between the refrigerant housing 41 and the evaporator housing 1; the spoiler spiral sheet 42 is located between the refrigerant housing 41 and the evaporator housing 1, and the refrigerant channel 5 is enclosed between the spoiler spiral sheet 42, the refrigerant housing 41 and the evaporator housing 1. The refrigerant channel 5 with a spiral structure can guide the inflowing condensed liquid, so that the condensed liquid is fully vaporized, and the heat conduction efficiency is improved, thereby further improving the cooling performance of the evaporator.

[0041] Preferably, the shell wall material of the evaporator shell 1 is preferably metal, which has good heat conduction effect and can improve the cooling performance. However, the shell wall material of the evaporator shell 1 is not limited thereto, and can also be other heat conductive materials with good heat conduction effect.

[0042] Preferably, the material of the spoiler spiral blade 42 is metal or plastic, but not limited thereto.

[0043] Furthermore, the two ends of the refrigerant housing 41 are respectively provided with an input pipe opening 411 and an output pipe opening 412 connected to the refrigerant channel 5; the condensation input pipe 2 is connected to the refrigerant channel 5 through the input pipe opening 411, so that the condenser flows the condensed liquid into the refrigerant channel 5 through the condensation input pipe 2 and the input pipe opening 411, so that the condensed liquid is gradually vaporized in the refrigerant channel 5 to achieve heat exchange. The air guide pipe 3 is connected to the refrigerant channel 5 through the output pipe opening 412. When the refrigerant liquid in the refrigerant channel 5 is vaporized, the gas generated by its vaporization is discharged back to the compressor through the output pipe opening 412 and the air guide pipe 3 to achieve the cooling cycle.

[0044] Furthermore, if Figures 4 to 5 As shown, one end of the refrigerant shell 41 is provided with a limiting ring 413 extending outward, and the limiting ring 413 is sealed and abutted with one end of the evaporator shell 1; the other end of the evaporator shell 1 away from the limiting ring 413 is provided with a supporting ring 11 extending inward, and the supporting ring 11 is sealed and abutted with the other end of the refrigerant shell 41, so that the limiting ring 413 and the supporting ring 11 play a role of fixing, supporting and limiting the refrigerant shell 41, and a closed space for storing condensed liquid is formed between the refrigerant shell 41 and the evaporator shell 1, while preventing the condensed liquid from flowing out and affecting the cooling performance of the evaporator.

[0045] Preferably, if Figure 1 and Figure 4 As shown, the input pipe 414 extending inward is provided on the input pipe opening 411, so that the condensation input pipe 2 can be firmly inserted into the input pipe 414 and welded to improve the connection stability and sealing. Correspondingly, the output pipe 415 extending inward is provided on the output pipe opening 412, so that the air guide pipe 3 can be firmly inserted into the output pipe 415 and welded to improve the connection stability and sealing.

[0046] Further, the diameter of the evaporator shell 1 is A, A is 60-100 mm; more preferably, A is preferably 80-90 mm. The thickness of the evaporator shell 1 is B, B is 0.5-1.2 mm. More preferably, B is preferably 0.8-1.0 mm.

[0047] The width of the refrigerant channel 5 is equal to the pitch of the spoiler spiral sheet 42, the pitch of the spoiler spiral sheet 42 is C, the width of the spoiler spiral sheet 42 is E, the thickness of the spoiler spiral sheet 42 is F, C is 5 to 20 mm, E is 2 to 10 mm, and F is 0.4 to 2 mm. More preferably, C is 8 to 16 mm, E is 5 to 8 mm, and F is 0.9 to 1.5 mm.

[0048] The ratio between the thickness of the evaporator shell 1 and the pitch of the spoiler spiral blade 42 is G, and G satisfies 0.06≤G=(B / C)≤0.1. More preferably, G satisfies 0.0625≤G≤0.1.

[0049] The width of the refrigerant channel 5 and the thickness of the evaporator shell 1 jointly affect the heat exchange efficiency and heat exchange effect of the evaporator. When the ratio G between the thickness of the evaporator shell 1 and the pitch of the spoiler spiral 42 satisfies 0.6≤G≤0.1, a good heat exchange effect can be obtained, so that the evaporator has a good cooling effect. In principle, the larger the width of the refrigerant channel 5 (that is, the larger the contact width between the refrigerant channel 5 and the inner wall of the evaporator shell 1), the larger the heat exchange area, the higher the heat exchange efficiency and the better the heat exchange effect; and the thinner the thickness of the evaporator shell 1, that is, the thinner the heat transfer medium, the higher the heat transfer efficiency and the better the heat transfer effect. However, if the width of the refrigerant channel 5 is too large, the liquid flow rate will slow down, resulting in a lower heat exchange effect of the condensed liquid. At the same time, the thickness requirements of the evaporator shell 1, the refrigerant shell 41 and the spoiler spiral 42 become larger, the cost is high, and even the service life is affected. In addition, if the thickness of the evaporator shell 1 is too thin, and the liquid flow rate or pressure of the refrigerant channel 5 is too large, the evaporator shell 1 will be deformed, and even the sealing performance will be affected, thereby affecting the normal operation; if the thickness of the evaporator shell 1 is too thick, the heat conduction efficiency and heat conduction effect will also be affected. In this regard, if the ratio G between the thickness of the evaporator shell 1 and the pitch of the spoiler spiral sheet 42 exceeds the appropriate range, that is, G<0.06 or G>0.1, it will affect the heat exchange effect, increase the cost and reduce the stability of use.

[0050] Accordingly, on the basis that the ratio G between the thickness of the evaporator shell 1 and the pitch of the spoiler spiral blade 42 meets the requirements, the other parameters of the evaporator shell 1 and the spoiler spiral blade 42 also meet the corresponding ranges, so that the overall structure is compact and firm, highly stable, and cost-optimized.

[0051] Preferably, the cross-sectional width of the refrigerant channel 5 changes from narrow to wide along its flow direction to increase the inflow of condensed liquid, thereby enhancing the heat exchange effect; or the refrigerant channel 5 changes from wide to narrow along its flow direction to increase the heat exchange flow rate of the condensed liquid, which can also enhance the heat exchange effect, thereby improving the cooling effect of the evaporator.

[0052] Preferably, in other embodiments, the cross-sectional width of the refrigerant channel 5 can be set to remain constant along its flow direction according to actual needs of users, so as to reduce the difficulty of the manufacturing process and achieve a better heat exchange effect.

[0053] like Figure 6 As shown, Figure 6 The schematic diagram of the structure of the second embodiment of the evaporator of the present invention is shown. Figure 2What is different from the first embodiment shown is that the refrigerant housing 41 may be provided with a plurality of middle inlet pipe openings 416 at intervals along the flow direction of the refrigerant channel 5 .

[0054] The middle input pipe opening 416 is connected to the refrigerant channel 5; the middle input pipe opening 416 is located between the input pipe opening 411 and the output pipe opening 412, and the middle input pipe opening 416 is connected to the condenser through a corresponding condensation input pipe. When the evaporator is working, the condensed liquid of the condenser flows synchronously into different positions of the refrigerant channel 5 through the input pipe opening 411 and the plurality of middle input pipe openings 416 and acts on the evaporator shell 1, so that the low-temperature condensed liquid can perform heat exchange work faster at different positions of the evaporator, speeding up the circulation heat exchange rate of the overall condensed liquid, thereby improving the cooling efficiency of the evaporator.

[0055] like Figure 7 As shown, Figure 7 The schematic diagram of the structure of the third embodiment of the evaporator of the present invention is shown. Figure 3 The difference from the first embodiment shown is that three spoiler spiral blades 42 are provided between the refrigerant shell 41 and the evaporator shell.

[0056] The refrigerant housing 41, the evaporator housing and the plurality of the flow-spinning spirals 42 enclose three refrigerant channels 5; the three refrigerant channels 5 are arranged in parallel, and the three refrigerant channels 5 are separated by the flow-spinning spirals 42. By providing three independent refrigerant channels 5, the condensed liquid can flow in synchronously to perform heat exchange, which can effectively improve the heat exchange efficiency and heat exchange effect of the condensed liquid, thereby improving the cooling efficiency of the evaporator.

[0057] like Figures 8 to 10 As shown, Figures 8 to 10 The schematic diagram of the structure of the fourth embodiment of the evaporator of the present invention is shown. Figures 1 to 3 The difference from the first embodiment shown is that the refrigerant area 4 includes a spiral convex part 43, and the convex part 43 and the inner wall of the evaporator shell 1 are an integral stamping structure to simplify the structure and improve assembly efficiency. The refrigerant channel 5 is formed between the inner cavity of the convex part 43 and the evaporator shell 1. The condensed liquid in the refrigerant channel 5 can exchange heat with the outside world only through the evaporator shell 1. The heat-conducting medium is small, which can effectively improve the heat conduction efficiency, thereby improving the cooling performance of the evaporator; and it can simplify the overall structure, save assembly space, and reduce production costs. Secondly, the refrigerant channel 5 with a spiral structure can guide the inflowing condensed liquid, so that the condensed liquid is fully vaporized, the heat conduction efficiency is improved, and the cooling performance of the evaporator is further improved.

[0058] Specifically, the two ends of the protruding part 43 are respectively provided with an input port 431 and an output port 432 which are connected to the refrigerant channel 5 in a one-to-one correspondence; the condensation input pipe 2 is inserted into the input port 431 and welded, so that the condenser provides condensation liquid to the refrigerant channel 5 through the condensation input pipe 2 and the input port 431, so that the condensation liquid is gradually vaporized in the refrigerant channel 5 to achieve heat exchange. The air guide pipe 3 is connected to the refrigerant channel 5 through the output port 432. When the refrigerant liquid in the refrigerant channel 5 is vaporized, the gas generated by its vaporization is discharged back to the compressor through the output port 432 and the air guide pipe 3 to achieve the cooling cycle.

[0059] The cross section of the protruding part 43 is formed by arranging a plurality of semicircles. Two adjacent semicircles are in contact with each other, and there is no gap between them, so as to maximize the heat exchange contact area between the condensed liquid and the evaporator shell, thereby improving the heat conduction efficiency of the condensed liquid, and further improving the cooling efficiency of the evaporator. Preferably, in other embodiments, the cross section of the protruding part 43 can also be a triangle or a square, etc., which is not too restrictive here.

[0060] Further, the diameter of the evaporator shell 1 is A, A is 60-100 mm; more preferably, A is preferably 80-90 mm. The thickness of the evaporator shell 1 is B, B is 0.5-1.2 mm. More preferably, B is preferably 0.8-1.0 mm.

[0061] The width of the refrigerant channel 5 is equal to the diameter of the protruding part 43. The diameter of the protruding part 43 is D. The thickness of the protruding part 43 is H. D is 5 to 10 mm and H is 0.4 to 0.8 mm. More preferably, D is 6 to 8 mm and H is 0.5 to 0.6 mm.

[0062] The ratio between the thickness of the evaporator housing 1 and the diameter of the protruding part 43 is I, and I satisfies 0.1≤I=(B / D)≤0.12. More preferably, I satisfies 0.1≤I≤0.11.

[0063] The width of the refrigerant channel 5 and the thickness of the evaporator shell 1 jointly affect the heat exchange efficiency and heat exchange effect of the evaporator. When the ratio I between the thickness of the evaporator shell 1 and the diameter of the protruding part 43 satisfies 0.1≤I≤0.12, a good heat exchange effect can be obtained, so that the evaporator has a good cooling effect. In principle, the larger the width of the refrigerant channel 5 (that is, the larger the contact width between the refrigerant channel 5 and the inner wall of the evaporator shell 1), the larger the heat exchange area, the higher the heat exchange efficiency and the better the heat exchange effect; and the thinner the thickness of the evaporator shell 1, that is, the thinner the heat transfer medium, the higher the heat transfer efficiency and the better the heat transfer effect. However, if the width of the refrigerant channel 5 is too large, the liquid flow rate will slow down, the pressure will increase, and the heat exchange effect of the condensed liquid will decrease. At the same time, the thickness requirements of the evaporator shell 1 and the protruding part 43 will increase, the cost will be high, and even the service life will be affected. In addition, if the thickness of the evaporator shell 1 is too thin, and the liquid flow rate or pressure of the refrigerant channel 5 is too large, the evaporator shell 1 will be deformed, and even the sealing performance will be affected, thereby affecting the normal operation; if the thickness of the evaporator shell 1 is too thick, the heat conduction efficiency and heat conduction effect will also be affected. In this regard, if the ratio I between the thickness of the evaporator shell 1 and the diameter of the protruding part 43 exceeds the appropriate range, that is, I<0.1 or I>0.12, it will affect the heat exchange effect, increase the cost and reduce the stability of use.

[0064] Accordingly, on the basis that the ratio I between the thickness of the evaporator shell 1 and the diameter of the protruding part 43 meets the requirements, the other parameters of the evaporator shell 1 and the protruding part 43 also meet the corresponding ranges, so that the overall structure is compact and firm, with high stability and optimized cost.

[0065] like Fig.11 As shown, Fig.11 The schematic diagram of the structure of the fifth embodiment of the evaporator of the present invention is shown. Fig. 9 The fourth embodiment shown is different in that the protruding component 43 may be provided with a plurality of middle input ports 433 at intervals along the flow direction of the refrigerant channel 5 .

[0066] The middle input port 433 is connected to the refrigerant channel 5; the middle input port 433 is located between the input port and the output port, and the middle input port 433 is connected to the condenser through a corresponding condensation input pipe. When the evaporator is working, the condensed liquid of the condenser flows synchronously into different positions of the refrigerant channel through the input port and the plurality of middle input ports 433 and acts on the evaporator shell 1, so that the low-temperature condensed liquid can perform heat exchange work faster at different positions of the evaporator, speeding up the circulation rate and heat conduction rate of the condensed liquid, thereby improving the cooling efficiency of the evaporator.

[0067] like Fig.12 As shown, Fig.12The sixth embodiment of the evaporator of the present invention is shown in FIG. Fig. 9 The fourth embodiment shown is different in that the refrigerant area 4 includes three spiral protrusions 43 .

[0068] The inner cavity of the protruding part 43 and the evaporator housing 1 enclose three refrigerant channels 5; the three refrigerant channels 5 are arranged in parallel, and the three refrigerant channels 5 are separated by the protruding part 43. By providing three independent refrigerant channels 5, the condensed liquid can flow in synchronously to perform heat exchange work, which can effectively improve the heat exchange efficiency and heat exchange effect of the condensed liquid, thereby improving the cooling efficiency of the evaporator.

[0069] The present invention also provides a refrigeration device, comprising a body, wherein the evaporator is arranged in the body, wherein the refrigeration device includes but is not limited to a smoothie machine, a snow melt machine or an ice cream machine.

[0070] In summary, the overall structure of the present invention is simple, which can save assembly space, reduce production costs, and at the same time reduce heat conduction media and improve heat conduction efficiency; and by guiding the condensed liquid, the condensed liquid can be fully vaporized, further improving the heat conduction efficiency, thereby greatly improving the cooling performance of the evaporator.

[0071] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An evaporator, characterized in that: It includes an evaporator shell, in which a condensation input pipeline, an air guide pipe and a refrigerant area are arranged; The inner wall of the evaporator shell is surrounded by the refrigerant area, and at least one refrigerant channel is formed between the refrigerant area and the evaporator shell, and the condensed liquid in the refrigerant channel acts on the inner wall of the evaporator shell; The input end of the refrigerant channel is connected to the condenser through the condensation input pipeline, and the output end of the refrigerant channel is connected to the compressor through the air guide pipe.

2. The evaporator according to claim 1, characterized in that The refrigerant zone includes a refrigerant shell and at least one spoiler spiral. The refrigerant shell is sealed and connected to the evaporator shell. The spoiler spiral is located between the refrigerant shell and the evaporator shell. The spoiler spiral, the refrigerant shell and the evaporator shell enclose at least one refrigerant channel.

3. The evaporator according to claim 1, characterized in that A plurality of the spoiler spirals are provided between the refrigerant shell and the evaporator shell, and a plurality of the refrigerant channels are formed between the refrigerant shell, the evaporator shell and the plurality of the spoiler spirals; The plurality of refrigerant channels are arranged in parallel, and the plurality of refrigerant channels are separated by flow-around spiral sheets.

4. The evaporator according to claim 2 or 3, characterized in that: The spoiler spiral blade is made of metal or plastic.

5. The evaporator according to claim 2 or 3, characterized in that: An input pipe opening and an output pipe opening are respectively provided at both ends of the refrigerant housing and are connected to the refrigerant channel in a one-to-one correspondence; The condensation input pipeline is communicated with the refrigerant channel through the input pipe opening, and the air guide pipe is communicated with the refrigerant channel through the output pipe opening.

6. The evaporator according to claim 2 or 3, characterized in that: One end of the refrigerant housing is provided with a limiting ring extending outward, and the limiting ring is sealed and connected to one end of the evaporator housing; The other end of the evaporator shell away from the limiting ring is provided with a support ring extending inwardly, and the support ring is sealed and connected to the other end of the refrigerant shell.

7. The evaporator according to claim 2 or 3, characterized in that: The diameter of the evaporator shell is A, the thickness of the evaporator shell is B, A is 60-100 mm, and B is 0.5-1.2 mm; The width of the refrigerant channel is equal to the pitch of the spoiler spiral sheet, the pitch of the spoiler spiral sheet is C, the width of the spoiler spiral sheet is E, the thickness of the spoiler spiral sheet is F, C is 5 to 20 mm, E is 2 to 10 mm, and F is 0.4 to 2 mm; The ratio between the thickness of the evaporator shell and the pitch of the spoiler spiral blade is G, and G satisfies 0.06≤G≤0.

1.

8. The evaporator according to claim 7, characterized in that A is 80-90 mm, B is 0.8-1.0 mm, C is 8-16 mm, E is 5-8 mm, F is 0.9-1.5 mm, and G satisfies 0.0625≤G≤0.

1.

9. The evaporator according to claim 5, characterized in that The input pipe opening is provided with an input pipeline extending inwardly, and the output pipe opening is provided with an output pipeline extending inwardly.

10. The evaporator according to claim 5, characterized in that The refrigerant housing is provided with a plurality of middle input pipe openings at intervals along the flow direction of the refrigerant channel, and the middle input pipe openings are connected to the refrigerant channel; The middle input pipe opening is located between the input pipe opening and the output pipe opening, and the middle input pipe opening is connected to the condenser through a corresponding condensation input pipeline.

11. The evaporator according to claim 1, characterized in that The refrigerant area includes at least one spiral protrusion component, the protrusion component is sealed and connected to the inner wall of the evaporator shell, and at least one refrigerant channel is enclosed between the inner cavity of the protrusion component and the evaporator shell.

12. The evaporator according to claim 11, characterized in that The refrigerant area includes a plurality of spiral convex parts, and a plurality of refrigerant channels are formed between the inner cavity of the convex parts and the evaporator shell; The plurality of refrigerant channels are arranged in parallel, and the plurality of refrigerant channels are separated by protruding components.

13. The evaporator according to claim 11 or 12, characterized in that The protruding component and the inner wall of the evaporator shell are an integrally stamped structure, and an input port and an output port connected to the refrigerant channel in a one-to-one correspondence are provided at both ends of the protruding component; The condensation input pipeline is communicated with the refrigerant channel through the input port, and the air guide pipe is communicated with the refrigerant channel through the output port.

14. The evaporator according to claim 13, characterized in that The convex component is provided with a plurality of middle input ports at intervals along the flow direction of the refrigerant channel, and the middle input ports are communicated with the refrigerant channel; The middle input port is located between the input port and the output port, and the middle input port is connected to the condenser through a corresponding condensation input pipeline.

15. The evaporator according to claim 11 or 12, characterized in that The cross section of the protruding part is formed by arranging a plurality of semicircles.

16. The evaporator according to claim 15, characterized in that Two adjacent semicircles are in contact with each other.

17. The evaporator according to claim 11 or 12, characterized in that The diameter of the evaporator shell is A, the thickness of the evaporator shell is B, A is 60-100 mm, and B is 0.5-1.2 mm; The width of the refrigerant channel is equal to the diameter of the raised component, the diameter of the raised component is D, the thickness of the raised component is H, D is 5-10 mm, and H is 0.4-0.8 mm; A ratio between the thickness of the evaporator shell and the diameter of the protruding part is I, and I satisfies 0.1≤I≤0.

12.

18. The evaporator according to claim 17, characterized in that A is 80-90 mm, B is 0.8-1.0 mm, D is 6-8 mm, H is 0.5-0.6 mm, and I satisfies 0.1≤I≤0.

11.

19. The evaporator according to claim 1, 2, 3, 11 or 12, characterized in that: The cross-sectional width of the refrigerant channel changes from narrow to wide or from wide to narrow along the flow direction thereof.

20. A refrigeration device, characterized in that: The invention comprises a machine body, wherein the evaporator according to any one of claims 1 to 19 is arranged in the machine body.

Images