Direct injection type continuous ice evaporator and ice maker

Abstract

A direct injection type mein ice evaporator comprises a roller (1) and a refrigerant pipe (2), the refrigerant pipe (2) is made of a whole continuous flow pipe, the refrigerant pipe (2) extends from one end of the roller (1) to the other end of the roller (1), the refrigerant pipe (2) is sequentially divided into a first section (3), an inner side part (4) and a second section (5) from one end of the roller (1) to the other end of the roller (1), the inner side part (4) is provided with a partition part (12), and under the partition of the partition part (12), the first section (3) and the second section (5) are communicated with each other. The inner side part (4) is sequentially divided into a first part (4.1) and a second part (4.2) along the axial direction, the first part (4.1) is provided with an outlet (24), and the second part (4.2) is provided with a discharge port (25); according to the direct injection type mein ice evaporator, the refrigerant pipeline directly penetrates through the interior of the roller, mutual interference is reduced, the ice making efficiency can be improved, the structure is further simplified, and assembling is convenient; the utility model further provides an ice making machine which adopts the soft ice evaporator.

Description

TECHNICAL FIELD

[0001] The utility model relates to ice maker technical field, concretely relates to a kind of direct-injection type cotton ice evaporator and ice maker. BACKGROUND

[0002] Cotton ice evaporator is the core component of the ice maker for making cotton ice, currently there is a direct-injection type cotton ice evaporator, for example, the technical solution disclosed in the household snow maker evaporator disclosed in the invention patent application with the application publication number CN116717932A, the household snow maker evaporator, it includes the scroll shaft with cold air chamber inside, it also includes main shaft, left fixed cover, oil seal cover, main shaft extends left and right and passes through left fixed cover and oil seal cover, the right end of oil seal cover is fixed with the left end of scroll shaft, left fixed cover is located at the left side of oil seal cover, and first bearing is installed between left fixed cover and oil seal cover, the inside of main shaft is hollow structure and is used for the extension of capillary tube, the right end of main shaft extends into the cold air chamber of scroll shaft, the right end of main shaft is fixed with capillary tube fixing piece, the right end of main shaft is equipped with the air outlet hole that is communicated with cold air chamber, oil seal is installed between the inner wall of oil seal cover and the outer wall of main shaft, the right end of scroll shaft has left and right extending shaft, the outer sleeve of shaft is equipped with right fixed cover, second bearing is installed between the inner wall of right fixed cover and the outer wall of shaft. The structure of the above-mentioned household snow maker evaporator is relatively complex, in addition, capillary tube fixing piece and corresponding capillary tube need to be additionally set, capillary tube and exhaust are in main shaft, and main shaft needs to be suspended.

[0003] Therefore, the applicant proposes a new type of direct-injection type cotton ice evaporator, which directly penetrates the refrigerant pipeline through the inside of the roller, reduces mutual interference, and is conducive to improving ice making efficiency. The new type of direct-injection type cotton ice evaporator includes a roller, the outer periphery of the roller is used for ice formation, and a refrigerant pipe is used for circulating refrigerant. The refrigerant pipe extends from one end of the roller to the other end. The refrigerant pipe is sequentially provided with a first section, an inner portion and a second section from one end of the roller to the other end. The first section is rotatably sleeved and connected with the end of one end of the roller. The second section is rotatably sleeved and connected with the end of the other end of the roller. The inner portion is located in the roller. The inner portion includes a first portion and a second portion that are not directly connected. The first section is connected with the first portion to form an inlet channel. The second portion is connected with the second section to form an outlet channel. The first portion is provided with an outlet. The second portion is provided with an exhaust outlet. For detailed contents, refer to the technical solutions proposed in the applicant's prior Chinese utility model patent application numbers 2024211747972 and 2024219128082.

[0004] The applicant further proposes a new type of direct-injection type cotton ice evaporator and ice maker, thereby further simplifying the structure and facilitating assembly. In the present application, the aforementioned Chinese utility model patent application numbers 2024211747972 and 2024219128082 are used as reference.

[0005] The technical solutions in the patent application 2024219128082 are incorporated into the present application. Utility model content

[0006] The technical problem to be solved by the utility model is to provide a direct-injection cotton ice evaporator, which directly penetrates a refrigerant pipeline through the inside of a roller, reduces mutual interference, is beneficial to improving ice-making efficiency, and further simplifies structure and facilitates assembly.

[0007] The technical solutions of the utility model are as follows: a cotton ice evaporator comprises a roller, and the outer periphery of the roller is used for ice formation, characterized in that: a refrigerant pipeline is further included, the refrigerant pipeline is used for circulating refrigerant, the refrigerant pipeline is made of a whole continuous circulation pipeline, the refrigerant pipeline extends from one end of the roller to the other end, the refrigerant pipeline is sequentially divided into a first section, an inner side section and a second section from the one end of the roller to the other end, the first section is rotatably sleeved with the end of the one end of the roller, the second section is rotatably sleeved with the end of the other end of the roller, and the inner side section is located in the roller; the inner side section is provided with a separation section, under the separation of the separation section, the inner side section is sequentially divided into a first part and a second part which are not directly connected in the axial direction, the first section and the first part are connected to form an inlet channel, the second part and the second section are connected to form an outlet channel, the first part is provided with an outlet, and the second part is provided with an exhaust outlet.

[0008] The non-direct connection means that, under the separation of the separation section, the refrigerant is directly injected into the roller through the inlet channel and the outlet, and the refrigerant is exhausted from the roller through the exhaust outlet after being heated and vaporized.

[0009] After the above structure is adopted, the utility model has the following advantages:

[0010] The refrigerant pipeline directly penetrates through the inside of the roller, and the inlet channel and the outlet channel do not interfere with each other, so that mutual interference is reduced, and ice-making efficiency is improved.

[0011] Since the first section is rotatably sleeved with the end of the one end of the roller, the end of the one end of the roller will be provided with a sleeving hole, and since the second section is rotatably sleeved with the end of the other end of the roller, the end of the other end of the roller will also be provided with a sleeving hole, so that the refrigerant pipeline can be inserted into the end of the one end of the roller and further inserted into the other end of the roller in the axial direction during production and manufacturing, and since the refrigerant pipeline is made of a whole continuous circulation pipeline, the structure of the refrigerant pipeline is stable in the axial direction, so that the refrigerant pipeline and the roller are conveniently assembled, and the refrigerant pipeline itself is also conveniently produced and manufactured.

[0012] Preferably, the whole continuous circulation pipeline is formed by one pipeline or sequentially spliced by multiple pipelines.

[0013] As preferred, the transverse openings or transverse intervals are provided with the blocking pieces to form the partition parts.

[0014] As preferred, the end of the one end of the roller is provided with a first supporting part on the outer periphery of the first section, and the end of the other end of the roller is provided with a second supporting part on the outer periphery of the second section, the first supporting part and the second supporting part are used to support the rotation of the roller, at the same time, the first sealing ring is arranged in the annular interval between the first supporting part and the first section, and the second sealing ring is arranged in the annular interval between the second supporting part and the second section, when the first supporting part, the second supporting part and the roller rotate together, the assembly composed of the first supporting part, the second supporting part and the roller rotates relative to the refrigerant pipe, and the refrigerant pipe does not rotate.

[0015] As preferred, the outer side end of the first supporting part is connected with a first end cover, the first section passes through the first end cover to the outer side and is rotatably matched, and / or the outer side end of the second supporting part is connected with a second end cover, the second section passes through the second end cover to the outer side and is rotatably matched.

[0016] As preferred, the first section is provided with a first limiting step, and the second section is provided with a second limiting step, after the first end cover is connected with the outer side end of the first supporting part, the first limiting step forms a first axial limiting, after the second end cover is connected with the outer side end of the second supporting part, the second limiting step forms a second axial limiting, and the refrigerant pipe is axially limited between the first end cover and the second end cover under the action of the first axial limiting and the second axial limiting.

[0017] As preferred, a first gasket is arranged between the first limiting step and the first end cover, and a second gasket is arranged between the second limiting step and the second end cover.

[0018] As preferred, a first axial limiting part is further arranged in the annular interval between the first supporting part and the first section, and the first axial limiting part is used to limit the axial movement of the first sealing ring, and a second axial limiting part is further arranged in the annular interval between the second supporting part and the second section, and the second axial limiting part is used to limit the axial movement of the second sealing ring.

[0019] As preferred, the number of the first sealing ring is one or more, the first sealing ring is sleeved on the first section and arranged close to the side of the roller, the first axial limiting part is arranged on the first section and away from the side of the roller, and the first sealing ring is axially limited between the first axial limiting part and the side of the roller; the number of the second sealing ring is one or more, the second sealing ring is arranged on the second section and close to the side of the roller, the second axial limiting part is sleeved on the second section and away from the side of the roller, and the second sealing ring is axially limited between the second axial limiting part and the side of the roller. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1It is a perspective view of a continuous ice evaporator.

[0021] Figure 2 It is a perspective view of a refrigerant pipe.

[0022] Figure 3 It is a top view of a continuous ice evaporator.

[0023] Figure 4 It is a section view along A-A direction.

[0024] Figure 5 It is a top view of a continuous ice evaporator with a scraper arranged in the circumferential direction.

[0025] Figure 6 It is a perspective view of a continuous ice evaporator rotatably arranged on an ice making support.

[0026] Figure 7 It is a perspective view mainly showing the positional relationship of a first axial limiting member, a second axial limiting member, a first sealing ring and a second sealing ring (the drum in the figure is arranged to be shorter in the axial direction).

[0027] Figure 8 It is a top view of a component formed by welding a first support part and a second support part to a drum.

[0028] Figure 9 It is a section view along B-B direction.

[0029] As shown in the utility model, 1 is a drum, 2 is a refrigerant pipe, 3 is a first section, 4 is an inner side part, 4.1 is a first part, 4.2 is a second part, 5 is a second section, 6 is a first support part, 7 is a second support part, 8 is a first sealing ring, 9 is a second sealing ring, 10 is a first limiting step, 11 is a second limiting step, 12 is a separation part, 13 is a first end cover, 14 is a second end cover, 15 is a first gasket, 16 is a second gasket, 17 is a scraper, 18 is a transmission gear, 19 is an ice making support, 20 is a first bearing, 21 is a second bearing, 22 is an inlet flow channel, 23 is an outlet flow channel, 24 is an outlet, 25 is a discharge outlet, 26 is a sleeving hole, 27 is a transverse opening, 28 is a first axial limiting member, 29 is a second axial limiting member, 30 is a first containing interval, 31 is a second containing interval, and 32 is a blocking piece. DETAILED DESCRIPTION

[0030] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the drawings. It should be understood that these detailed descriptions are merely descriptive of exemplary embodiments of the present application and are not intended in any way to limit the scope of the present application. Throughout the specification, the same reference numbers refer to the same elements.

[0031] In the drawings, the thicknesses of objects, dimensions, and shapes have been exaggerated slightly for ease of explanation. The drawings are not drawn strictly to scale.

[0032] It should also be understood that the words "comprise", "comprising", "include", "including", "contain", "containing", when used in this specification, indicate the presence of the stated features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0033] As shown in Figures 1 to 9 , a direct-impact ice evaporator is disclosed, which can be used in an ice maker, the ice evaporator comprising a roller 1 and a refrigerant pipe 2, the refrigerant pipe 2 being used for flowing refrigerant, the refrigerant pipe 2 extending from one end of the roller 1 to the other end, the refrigerant pipe 2 being made of a whole continuous flow pipe, for example, being formed by one pipe or being sequentially spliced by multiple pipes, the one pipe being for example a whole stainless steel seamless pipe, and the multiple pipes being for example multiple stainless steel seamless pipes which are sequentially spliced by welding in the axial direction, when the multiple stainless steel seamless pipes are sequentially spliced by welding, the transverse space between the adjacent stainless steel seamless pipes can be used to set a blocking piece 32, for example, the blocking piece 32 can be used to bridge the adjacent stainless steel seamless pipes, so that the adjacent stainless steel seamless pipes are connected together by the blocking piece 32, and then a partition 12 is naturally formed. Of course, from the aspect of manufacturing convenience, it is preferred that the whole stainless steel seamless pipe is used as the refrigerant pipe 2.

[0034] In some embodiments, in order to block the whole stainless steel seamless pipe to form the partition 12, the following structure can be used, as shown in Figure 2 , a transverse opening 27 is formed on the whole continuous flow pipe, and the blocking piece 32 is arranged in the transverse opening 27 to form the partition 12.

[0035] As shown in Figure 2 , 4 , the refrigerant pipe 2 sequentially comprises a first section 3, an inner side part 4, and a second section 5 from one end of the roller 1 to the other end, the first section 3 is rotatably sleeved with the end of the one end of the roller 1 through a sleeving hole 26, and the sleeving hole 26 can be referred to Figure 9The end of one end of the roller 1 is sleeved with the first supporting part 6 on the outer periphery of the first section 3, and the end of the other end of the roller 1 is sleeved with the second supporting part 7 on the outer periphery of the second section 5, the first supporting part 6 and the second supporting part 7 are used for supporting the roller 1 to rotate together, at the same time, the first sealing ring 8 and the first axial limiting part 28 are arranged in the annular space between the first supporting part 6 and the first section 3, the first axial limiting part 28 is used for limiting the axial movement of the first sealing ring 8, the second sealing ring 9 and the second axial limiting part 29 are arranged in the annular space between the second supporting part 7 and the second section 5, the second axial limiting part 29 is used for limiting the axial movement of the second sealing ring 9, when the first supporting part 6, the second supporting part 7 and the roller 1 rotate together, the assembly composed of the first supporting part 6, the second supporting part 7 and the roller 1 rotates relative to the refrigerant pipe 2, and the refrigerant pipe 2 does not rotate, so that the refrigerant oil is not easy to leak.

[0036] Therefore, when the present disclosure is produced and manufactured, the assembly process can refer to the following, the refrigerant pipe 2 sequentially passes through the assembly composed of the first supporting part 6, the second supporting part 7 and the roller 1, and then the first sealing ring 8 and the first axial limiting part 28 and the second sealing ring 9 and the second axial limiting part 29 are sleeved on both ends respectively, and then the first end cover 13 and the second end cover 14 are connected, which is convenient and efficient. Since the refrigerant pipe 2 is made of a whole continuous flow pipe, the axial structure is stable, and also has good strength and support.

[0037] In some embodiments, in order to be more convenient for axial limiting and installation, as shown in Figure 2 the first section 3 is provided with the first limiting step 10, and the second section 5 is provided with the second limiting step 11, after the first end cover 13 is connected with the outer side end of the first supporting part 6, the first limiting step 10 constitutes the first axial limiting, after the second end cover 14 is connected with the outer side end of the second supporting part 7, the second limiting step 11 constitutes the second axial limiting, and the refrigerant pipe 2 is axially limited between the first end cover 13 and the second end cover 14 under the action of the first axial limiting and the first axial limiting. In order to be convenient for connection, the first end cover 13 is threadedly connected with the outer side end of the first supporting part 6, and the second end cover 14 is threadedly connected with the outer side end of the second supporting part 7.

[0038] Further, as shown in Figure 4 the first limiting step 10 and the first end cover 13 are provided with the first gasket 15, and the second limiting step 11 and the second end cover 14 are provided with the second gasket 16. In this way, contact occurs through the gasket, and the first limiting step 10 and the second limiting step 11 are avoided from being abraded.

[0039] The first gasket 15 and the second gasket 16 are preferably oil-containing gaskets, thereby being beneficial to reducing friction.

[0040] As shown in Figure 9 , the first axial position limiting member 28 and the second axial position limiting member 29 are preferably in the form of a sleeve, and the first axial position limiting member 28 can be tightly fitted on the first section 3 in the form of a sleeve, or further fitted and then welded, so as to be firmly combined on the first section 3. Of course, the first axial position limiting member 28 can also be loosely fitted on the first section 3 instead of being tightly connected, and the axial position is limited by the first gasket 15 described below. The first axial position limiting member 28 and the second axial position limiting member 29 can also not be in the form of a sleeve, but can also be other structures, as long as they can be applied in this disclosure and achieve the purpose of axial position limiting.

[0041] In addition to the idea of manufacturing separate parts, it can also be integrally provided, for example, the first axial position limiting member 28 is machined or cast on the first section 3. Similarly, the second section 5 can also be similarly provided.

[0042] In some embodiments, as shown in Figure 4 , the number of first sealing rings 8 is one or more, the first sealing ring 8 is fitted on the first section 3 and is arranged close to the side of the roller 1, the first axial position limiting member 28 is arranged on the first section 3 and is arranged away from the side of the roller 1, and the first sealing ring 8 is axially limited between the first axial position limiting member 28 and the roller 1; the number of second sealing rings 9 is one or more, the second sealing ring 9 is arranged on the second section 5 and is arranged close to the side of the roller 1, the second axial position limiting member 29 is fitted on the second section 5 and is arranged away from the side of the roller 1, and the second sealing ring 9 is axially limited between the second axial position limiting member 29 and the roller 1. In this way, better sealing performance is achieved, preventing refrigerant from entering the position where the first axial position limiting member 28 and the second axial position limiting member 29 are located, and at the same time, the part of the first support portion 6 and the second support portion 7 away from the side of the roller 1 is not easily at a lower temperature.

[0043] In some embodiments, as shown in Figure 4 , 9 , a first containing interval 30 is formed between the first axial position limiting member 28 and the roller 1, and the first sealing ring 8 is limited in the first containing interval 30, so that the first sealing ring 8 is arranged in a non-axially compressed state; a second containing interval 31 is formed between the second axial position limiting member 29 and the roller 1, and the second sealing ring 9 is limited in the second containing interval 31, so that the second sealing ring 9 is arranged in a non-axially compressed state. In this way, the sealing ring is not in a compressed or dead state, so that the sealing ring is self-adapting according to the rotation condition, thereby achieving better sealing effect and sealing life.

[0044] In this disclosure, as shown in Figure 2 , 4As shown, the inner portion 4 is provided with a partition 12, and under the partition of the partition 12, the inner portion 4 is sequentially divided into a first portion 4.1 and a second portion 4.2 which are not directly communicated with each other in the axial direction. The first portion 4.1 is communicated with the first section 3 to form an inflow channel 22, and the second portion 4.2 is communicated with the second section 5 to form an outflow channel 23. The first portion 4.1 is provided with an outlet 24, and the second portion 4.2 is provided with a discharge outlet 25. The non-direct communication means that, under the partition of the partition 12, the refrigerant is directly sprayed into the drum 1 through the inflow channel 22 and the outlet 24, and after the refrigerant absorbs heat and vaporizes, the refrigerant enters the outflow channel 23 through the discharge outlet 25 to be discharged from the drum 1. Figure 4 The arrows shown represent the approximate direction of the flow of the refrigerant.

[0045] In some embodiments, as shown in Figure 2 , 4 The outlet 24 is provided as a plurality of through holes arranged sequentially along the axial direction of the first portion 4.1. These through holes are arranged on the pipe wall of the first portion 4.1. In this way, the refrigerant is more evenly distributed in the drum 1 to improve the refrigeration efficiency. In addition, there is no need to additionally provide the capillary structure such as the capillary tube mentioned in the prior art.

[0046] The discharge outlet 25 is provided as a through hole on the pipe wall of the second portion 4.2, and the discharge outlet 25 is arranged close to the end of the other end of the drum 1. In this way, the refrigerant is more evenly distributed in the drum 1 to further improve the refrigeration efficiency.

[0047] The number and flow aperture size of the outlet 24 and the number and flow aperture size of the discharge outlet 25 can be set according to the flow demand of the refrigerant. At present, the number of the outlet 24 is set to 5, and the number of the discharge outlet 25 is set to 1.

[0048] Of course, the specific structure and number of the outlet 24 and the specific structure and number of the discharge outlet 25 can also be other structures, which cannot be listed one by one.

[0049] In some embodiments, as shown in Figure 4 The drum 1 can be obtained by a seamless stainless steel pipe with open ends. Then the first support portion 6 and the second support portion 7 are respectively welded on the two ends of the pipe body to cover the two open ends. In this way, the first support portion 6, the second support portion 7 and the drum 1 form an assembly. The first support portion 6 and the second support portion 7 can support the drum 1 to rotate together. In addition, the production and manufacturing are simple, which is conducive to improving the production efficiency.

[0050] The length of the drum 1 can be different to form ice-making surfaces of different lengths. As shown in Figure 1 The length of the drum 1 is relatively short, and as shown in Figure 5 , 6 , 8, 9, the length of the drum 1 is relatively long.

[0051] This disclosure also provides an ice maker, including a compressor, a scraper 17, and the aforementioned shaved ice evaporator, such as... Figure 5 As shown, the scraper 17 is located circumferentially in the evaporator of the shaved ice, and the compressor supplies refrigerant to the refrigerant pipe 2 of the evaporator of the shaved ice.

[0052] The refrigerant is circulated by the compressor, and the refrigeration unit sprayed from the inner part 4 quickly cools the drum 1. After the outer circumference of the drum 1 is cooled, it comes into contact with the liquid and forms an ice layer. As the ice layer thickens, the scraper 17 will come into contact with the ice layer. As the drum 1 rotates, the scraper 17 cuts the ice layer to obtain shaved ice.

[0053] In some embodiments, such as Figure 6 As shown, it also includes an ice-making support 19. A direct-injection shaved ice evaporator is installed on the ice-making support 19. A first bearing 20 is provided between the first support part 6 of the direct-injection shaved ice evaporator and the ice-making support 19, and a second bearing 21 is provided between the second support part 7 of the direct-injection shaved ice evaporator and the ice-making support 19. The direct-injection shaved ice evaporator rotates relative to the ice-making support 19 through the first bearing 20 and the second bearing 21. In this way, the first bearing 20 and the second bearing 21 make the assembly consisting of the first support part 6, the second support part 7, and the roller 1 rotate more stably.

[0054] like Figure 6 As shown, in order to drive the roller 1 to rotate, in this example, the second support part 7 is provided with a transmission gear 18. The transmission gear 18 can be driven by an electric motor and then by a gear transmission structure, thereby further driving the second support part 7, so that the assembly consisting of the first support part 6, the second support part 7, and the roller 1 rotates together.

[0055] When understanding this utility model, the above structure may be referred to other embodiments / appendices if necessary. Figure 1 And that is understood, so I will not elaborate further here.

[0056] The above description is merely an illustrative embodiment of this utility model. Therefore, all equivalent changes or modifications made to the structure, features, and principles described in the scope of protection of this utility model are included within the scope of protection of this utility model.

Claims

1. A direct-injection shaved ice evaporator, comprising a drum (1) with its outer periphery used for ice formation, characterized in that: It also includes a refrigerant pipe (2), which is used to circulate refrigerant. The refrigerant pipe (2) is made of a single continuous flow pipe. The refrigerant pipe (2) extends from one end of the roller (1) to the other end. The refrigerant pipe (2) is divided into a first section (3), an inner part (4), and a second section (5) in sequence from one end of the roller (1) to the other end. The first section (3) is rotatably fitted with one end of the roller (1), and the second section (5) is rotatably fitted with the other end of the roller (1). The inner part (4) Located in the drum (1); the inner part (4) is provided with a partition (12). Under the partition (12), the inner part (4) is sequentially divided into a first part (4.1) and a second part (4.2) that are not directly connected along the axial direction. The first section (3) is connected to the first part (4.1) to form an inlet channel (22), and the second part (4.2) is connected to the second section (5) to form an outlet channel (23). The first part (4.1) is provided with an outlet (24), and the second part (4.2) is provided with a discharge outlet (25). The indirect connection refers to the fact that, under the separation of the partition (12), the refrigerant is directly injected into the drum (1) through the inlet channel (22) and the outlet (24). After the refrigerant absorbs heat and vaporizes, it enters the outlet channel (23) through the outlet (25) and is discharged from the drum (1).

2. The direct-injection shaved ice evaporator according to claim 1, characterized in that: A continuous flow tube is formed by a single tube or by multiple tubes joined together in sequence.

3. A direct-injection shaved ice evaporator according to claim 1 or 2, characterized in that: A transverse opening (27) or transverse interval is made on a continuous flow tube, and a plug (32) is provided in conjunction with the transverse opening (27) or transverse interval to form a partition (12).

4. The direct-injection shaved ice evaporator according to claim 1, characterized in that: One end of the roller (1) is fitted with a first support part (6) on the outer periphery of the first section (3), and the other end of the roller (1) is fitted with a second support part (7) on the outer periphery of the second section (5). The first support part (6) and the second support part (7) are used to support the roller (1) to rotate together. At the same time, a first sealing ring (8) is provided in the annular gap between the first support part (6) and the first section (3), and a second sealing ring (9) is provided in the annular gap between the second support part (7) and the second section (5). When the first support part (6), the second support part (7), and the roller (1) rotate together, the assembly consisting of the first support part (6), the second support part (7), and the roller (1) rotates relative to the refrigerant pipe (2), while the refrigerant pipe (2) does not rotate.

5. A direct-injection shaved ice evaporator according to claim 4, characterized in that: The outer end of the first support part (6) is connected to the first end cap (13), the first segment (3) passes through the first end cap (13) outward and is rotatably engaged, and / or the outer end of the second support part (7) is connected to the second end cap (14), the second segment (5) passes through the second end cap (14) outward and is rotatably engaged.

6. A direct-injection shaved ice evaporator according to claim 5, characterized in that: The first section (3) is provided with a first limiting step (10), and the second section (5) is provided with a second limiting step (11). After the first end cap (13) is connected to the outer end of the first support part (6), the first limiting step (10) constitutes the first axial limit. After the second end cap (14) is connected to the outer end of the second support part (7), the second limiting step (11) constitutes the second axial limit. The refrigerant pipe (2) is axially limited between the first end cap (13) and the second end cap (14) under the action of the first axial limit and the first axial limit.

7. A direct-injection shaved ice evaporator according to claim 6, characterized in that: A first gasket (15) is provided between the first limiting step (10) and the first end cap (13), and a second gasket (16) is provided between the second limiting step (11) and the second end cap (14).

8. A direct-injection shaved ice evaporator according to claim 4, 5, 6, or 7, characterized in that: A first axial limiting member (28) is provided in the annular gap between the first support part (6) and the first segment (3). The first axial limiting member (28) is used to restrict the axial movement of the first sealing ring (8). A second axial limiting member (29) is provided in the annular gap between the second support part (7) and the second segment (5). The second axial limiting member (29) is used to restrict the axial movement of the second sealing ring (9).

9. A direct-injection shaved ice evaporator according to claim 8, characterized in that: The number of first sealing rings (8) is one or more. The first sealing ring (8) is sleeved on the first section (3) and set close to the roller (1). The first axial limiting member (28) is set on the first section (3) and set away from the roller (1). The first sealing ring (8) is axially limited between the first axial limiting member (28) and the roller (1). The number of second sealing rings (9) is one or more. The second sealing ring (9) is set on the second section (5) and set close to the roller (1). The second axial limiting member (29) is sleeved on the second section (5) and set away from the roller (1). The second sealing ring (9) is axially limited between the second axial limiting member (29) and the roller (1).

10. An ice maker, comprising a compressor, a scraper (17), and a direct-injection shaved ice evaporator, wherein the scraper (17) is arranged circumferentially in the direct-injection shaved ice evaporator, and the compressor supplies refrigerant to the refrigerant pipe (2) of the direct-injection shaved ice evaporator, characterized in that: The direct-injection shaved ice evaporator described herein is the direct-injection shaved ice evaporator as described in any one of claims 1 to 9.

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