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), and the refrigerant pipe (2) is sequentially provided with 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). A first sealing ring (8) and a first axial limiting piece (28) are arranged in an annular interval (12) between the first supporting part (6) and the first section (3), the first axial limiting piece (28) is used for limiting axial movement of the first sealing ring (8), and a second sealing ring (9) and a second axial limiting piece (29) are arranged in an annular interval (12) between the second supporting part (7) and the second section (5). The second axial limiting piece (29) is used for limiting the axial movement of the second sealing ring (9); the direct injection type mein ice evaporator is beneficial for further improving the reliability and the stability; the utility model further provides an ice maker which adopts the soft ice evaporator, so that the reliability and the stability are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ice making machines, and particularly relates to a direct-injection fluffy ice evaporator and an ice making machine. Background Art

[0002] The fluffy ice evaporator is the core component of an ice making machine for making fluffy ice. At present, there is a direct-injection fluffy ice evaporator. For example, the technical solution disclosed in a patent application for an invention with the application publication number CN116717932A, which is an evaporator of a household snow making machine. This household snow making machine evaporator includes a roller with a cold air chamber inside. It also includes a main shaft, a left fixed cover, and an oil seal cover. The main shaft extends left and right through the left fixed cover and the oil seal cover. The right end of the oil seal cover is fixed to the left end of the roller. The left fixed cover is located on the left side of the oil seal cover, and a first bearing is installed between the left fixed cover and the oil seal cover. The inside of the main shaft is a hollow structure for a capillary tube to extend into. The right end of the main shaft extends into the cold air chamber of the roller. A capillary tube fixing part is fixed at the right end of the main shaft. An air outlet communicating with the cold air chamber is provided at the right end of the main shaft. An oil seal is installed between the inner wall of the oil seal cover and the outer wall of the main shaft. The right end of the roller has a rotating shaft extending left and right, and a right fixed cover is sleeved outside the rotating shaft. A second bearing is installed between the inner wall of the right fixed cover and the outer wall of the rotating shaft. The above-mentioned household snow making machine evaporator has a relatively complex structure. In addition, an additional capillary tube fixing part and the corresponding capillary tube need to be provided. The capillary tube and the exhaust are both in the main shaft, and the main shaft needs to be suspended.

[0003] Therefore, the applicant proposes a new type of direct-injection fluffy ice evaporator, which directly passes the refrigerant pipeline through the inside of the drum, reduces mutual interference, and is beneficial to improving the ice making efficiency. This new type of direct-injection fluffy ice evaporator includes a drum, the outer circumference of which is used for ice formation, and also includes a refrigerant pipe for circulating the refrigerant. The refrigerant pipe extends from one end of the drum to the other end. The refrigerant pipe is sequentially provided with a first section, an inner part, and a second section from one end of the drum to the other end. The first section is rotatably sleeved and fitted with the end of one end of the drum, the second section is rotatably sleeved and fitted with the end of the other end of the drum, and the inner part is located in the drum; the inner part includes a first part and a second part that are not directly connected. The first section and the first part are connected to form an inlet flow channel, the second part and the second section are connected to form an outlet flow channel, an outlet is provided on the first part, and a discharge port is provided on the second part. For the detailed content, reference can be made to the technical solution proposed in the applicant's prior Chinese utility model patent application No. 2024211747972.

[0004] In order to further improve the reliability and stability, the applicant further proposes a new type of direct-injection fluffy ice evaporator and an ice making machine. And in this application, all the contents of the technical solution proposed in the aforementioned Chinese utility model patent application No. 2024211747972 are incorporated into this application. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: to propose a direct-injection shaved ice evaporator, which is conducive to further improving reliability and stability; and to propose an ice making machine, which adopts the above-mentioned shaved ice evaporator, which is conducive to further improving reliability and stability.

[0006] The technical solution of the utility model is: a shaved ice evaporator, including a drum, the outer periphery of the drum is used for ice formation, and also includes a refrigerant pipe, the refrigerant pipe is used for circulating refrigerant, the refrigerant pipe is extended from one end of the drum to the other end, and the refrigerant pipe is provided with a first section, an inner part and a second section in sequence from one end of the drum to the other end, the first section is rotatably sleeved with the end of one end of the drum, the second section is rotatably sleeved with the end of the other end of the drum, and the inner part is located in the drum; the inner part includes a first part and a second part which are not directly connected, the first section is connected with the first part to form an inlet channel, the second section is connected with the second section to form an outlet channel, the first part is provided with an outlet, and the second part is provided with a discharge port.

[0007] The non-direct connection means that the refrigerant is directly sprayed into the drum through the inlet channel and the outlet, and the refrigerant absorbs heat and vaporizes, and then enters the outlet channel through the discharge port to be discharged from the drum.

[0008] The end of one end of the roller is also provided with a first support part on the outer periphery of the first section, and the end of the other end of the roller is also provided with a second support part on the outer periphery of the second section. The first support part and the second support part are used to support the roller to rotate together. At the same time, a first sealing ring and a first axial limiter are provided in the annular space between the first support part and the first section. The first axial limiter is used to limit the axial movement of the first sealing ring. A second sealing ring and a second axial limiter are provided in the annular space between the second support part and the second section. The second axial limiter is used to limit the axial movement of the second sealing ring. When the first support part, the second support part and the roller rotate together, the assembly composed of the first support part, the second support part and the roller rotates relative to the refrigerant pipe, while the refrigerant pipe does not rotate.

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

[0010] The refrigerant pipe is directly passed through the inside of the drum, and the inlet flow channel and the outlet flow channel do not interfere with each other, thereby reducing mutual interference and being beneficial to improving the ice-making efficiency. During use, since the assembly composed of the first support part, the second support part, and the drum rotates relative to the refrigerant pipe, and the refrigerant pipe does not rotate, the first sealing ring and the second sealing ring are in contact and sealed with the rotating inner peripheral surface at the outer periphery, the inner periphery of the first sealing ring is sleeved with the stationary outer periphery of the first section or further with the stationary outer periphery of the first protective bushing, and the inner periphery of the second sealing ring is sleeved with the stationary outer periphery of the second section or further with the stationary outer periphery of the second protective bushing. Therefore, there is a possibility that the first sealing ring and the second sealing ring are axially offset. If the axial offset is too large, the sealing effect or the continuous sealing ability will be affected, thereby reducing the reliability and stability. Then, when the first axial limiting member and the second axial limiting member are provided, this problem is solved. In this application, the axial limiting can be a tight limit or a loose limit. As will be described below, the loose limit is relatively better to avoid some problems caused by the tight limit. The loose limit is the setting of the first accommodation interval and the second accommodation interval as described below, so that the first sealing ring is set in a non-axially compressed state and the second sealing ring is set in a non-axially compressed state.

[0011] Preferably, the number of the first sealing rings is one or more. The first sealing rings are sleeved on the first section and are arranged close to the drum side. The first axial limiting member is arranged on the first section and is arranged far from the drum side. The first sealing rings are axially limited between the first axial limiting member and the drum; the number of the second sealing rings is one or more. The second sealing rings are arranged on the second section and are arranged close to the drum side. The second axial limiting member is sleeved on the second section and is arranged far from the drum side. The second sealing rings are axially limited between the second axial limiting member and the drum.

[0012] Preferably, a first accommodation interval is formed between the first axial limiting member and the drum, and the first sealing rings are limited in the first accommodation interval so that the first sealing rings are set in a non-axially compressed state; a second accommodation interval is formed between the second axial limiting member and the drum, and the second sealing rings are limited in the second accommodation interval so that the second sealing rings are set in a non-axially compressed state.

[0013] Preferably, the first section is further provided with a first protective bushing. A first sealing ring and a first axial limiting member are arranged in the annular interval between the first support part and the first protective bushing. The inner end of the first protective bushing is rotatably sleeved and matched with the end of one end of the drum; the second section is further provided with a second protective bushing. A second sealing ring and a second axial limiting member are arranged in the annular interval between the second support part and the second protective bushing. The inner end of the second protective bushing is rotatably sleeved and matched with the end of the other end of the drum.

[0014] Preferably, the outer end of the first support portion is connected to a first end cap, the first section passes through the first end cap outward and can be rotatably engaged, and the outer end of the first protective sleeve abuts against the first end cap, and / or the outer end of the second support portion is connected to a second end cap, the second section passes through the second end cap outward and can be rotatably engaged, and the outer end of the second protective sleeve abuts against the second end cap.

[0015] Preferably, after the first end cover is connected to the outer end of the first support portion, the first end cover pushes the first protective sleeve inwardly through the abutment so that the inner end of the first protective sleeve can be rotatably engaged with the sleeve hole at the end of one end of the roller to reduce the exposed gap of the sleeve hole, and / or, after the second end cover is connected to the outer end of the second support portion, the second end cover pushes the second protective sleeve inwardly through the abutment so that the inner end of the second protective sleeve can be rotatably engaged with the sleeve hole at the end of the other end of the roller to reduce the exposed gap of the sleeve hole.

[0016] Preferably, the outer end of the first protective bushing is sleeved with a first gasket, and the outer end of the first protective bushing abuts against the first end cover, which means that the first gasket abuts against the first end cover, and / or the outer end of the second protective bushing is sleeved with a second gasket, and the outer end of the second protective bushing abuts against the second end cover, which means that the second gasket abuts against the second end cover.

[0017] Preferably, the refrigerant pipe is provided with an elastic structure, and the elastic structure is used to provide the elastic force required for the offset.

[0018] Preferably, the elastic structure includes a spring, which is arranged in the drum, and the first part, the spring, and the second part are arranged in sequence along the axial direction of the drum. The first part and the second part are connected by a spring, which provides an elastic force between the first part and the second part along the axial direction and in the outward direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a shaved ice evaporator.

[0020] Figure 2 It is a three-dimensional schematic diagram of a refrigerant pipe.

[0021] Figure 3 The figure is a top view schematic diagram of a shaved ice evaporator.

[0022] Figure 4 It is the AA section view.

[0023] Figure 5 The schematic top view of a shaved ice evaporator with a scraper arranged around its circumference.

[0024] Figure 6The invention is a three-dimensional schematic diagram of a shaved ice evaporator rotatably arranged on an ice-making support.

[0025] Figure 7 It is a top view schematic diagram of a component formed by welding a first supporting part and a second supporting part to a roller.

[0026] Figure 8 It is a BB cross-sectional view, and the second section of the refrigerant pipe is drawn to show the interval.

[0027] Figure 9 It is a front view of a first section adopting an integrated structure (ie, the first protective sleeve is integrally arranged on the first section).

[0028] Figure 10 It is the CC section view.

[0029] Figure 11 It is a three-dimensional schematic diagram mainly showing the positional relationship between the first axial limiter, the second axial limiter, the first sealing ring, and the second sealing ring (the roller in the figure is set to be axially shorter).

[0030] As shown in the figure of the utility model: 1-roller, 2-refrigerant pipe, 3-first section, 4-inner part, 4.1-first part, 4.2-second part, 5-second section, 6-first supporting part, 7-second supporting part, 8-first sealing ring, 9-second sealing ring, 10-first protective bushing, 11-second protective bushing, 12-interval, 13-first end cover, 14-second end cover, 15-first gasket, 16-second gasket, 17-scraper, 18-transmission gear, 19-ice making bracket, 20-first bearing, 21-second bearing, 22-inlet channel, 23-outlet channel, 24-outlet, 25-discharge port, 26-sleeve hole, 27-spring, 28-first axial limiter, 29-second axial limiter, 30-first accommodating interval, 31-second accommodating interval. DETAILED DESCRIPTION

[0031] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0032] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0033] It should also be understood that the terms “comprises,” “including,” “has,” “includes,” and “containing,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0034] like Figures 1 to 11 As shown, a direct-injection slushy ice evaporator is disclosed, which can be used in an ice maker. The slushy ice evaporator includes a drum 1 and a refrigerant pipe 2. The refrigerant pipe 2 is used to circulate refrigerant. The refrigerant pipe 2 is extended from one end of the drum 1 to the other end. The refrigerant pipe 2 is provided with a first section 3, an inner part 4 and a second section 5 in sequence from one end of the drum 1 to the other end. The first section 3 is rotatably sleeved with the end of one end of the drum 1, and the second section 5 is rotatably sleeved with the end of the other end of the drum 1. The inner part 4 is located in the drum 1; the end of one end of the drum 1 is also sleeved with a first support portion 6 on the outer periphery of the first section 3, and the end of the other end of the drum 1 is also sleeved with a second support portion 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 drum 1 to rotate together. At the same time, a first sealing ring 8 and a first axial limiter 28 are provided in the annular space 12 between the first support part 6 and the first section 3. The first axial limiter 28 is used to limit the axial movement of the first sealing ring 8. A second sealing ring 9 and a second axial limiter 29 are provided in the annular space 12 between the second support part 7 and the second section 5. The second axial limiter 29 is used to limit the axial movement of the second sealing ring 9. When the first support part 6, the second support part 7 and the drum 1 rotate together, the assembly composed of the first support part 6, the second support part 7 and the drum 1 rotates relative to the refrigerant pipe 2, while the refrigerant pipe 2 does not rotate, so that the refrigeration oil is not easy to leak.

[0035] like Figure 11 As shown, the first axial stopper 28 and the second axial stopper 29 are preferably in the form of sleeves. The first axial stopper 28 in the form of sleeves can be sleeved and tightly fitted on the first section 3, or further sleeved and welded, so as to be firmly combined with the first section 3. Of course, the first axial stopper 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 stopper 28 and the second axial stopper 29 may also not be in the form of sleeves, but may also be other structures, and any structural form that can be applied to the present disclosure and achieve the purpose of axial limiting is acceptable.

[0036] In addition to manufacturing with the idea of separate parts, it can also be an integrated setting, for example, the first axial limiter 28 is formed by machining or casting on the first section 3, or further, the first protective bushing 10 and the first axial limiter 28 are formed by machining or casting on the first section 3. Similarly, the second section 5 can also be set in a similar manner.

[0037] In some embodiments, as Figure 4 shown, the number of the first sealing rings 8 is one or more. The first sealing rings 8 are sleeved on the first section 3 and arranged close to the side of the drum 1. The first axial limiting member 28 is arranged on the first section 3 and away from the side of the drum 1. The first sealing rings 8 are axially limited between the first axial limiting member 28 and the drum 1; the number of the second sealing rings 9 is one or more. The second sealing rings 9 are arranged on the second section 5 and close to the side of the drum 1. The second axial limiting member 29 is sleeved on the second section 5 and away from the side of the drum 1. The second sealing rings 9 are axially limited between the second axial limiting member 29 and the drum 1. This has better sealing performance, preventing the refrigerant from entering the positions where the first axial limiting member 28 and the second axial limiting member 29 are located. At the same time, it is not easy for the parts of the first support portion 6 and the second support portion 7 away from the side of the drum 1 to be at a relatively low temperature.

[0038] In some embodiments, as Figure 4 、 11 shown, a first accommodation interval 30 is formed between the first axial limiting member 28 and the drum 1. The first sealing rings 8 are restricted in the first accommodation interval 30 so that the first sealing rings 8 are arranged in a non-axially compressed state; a second accommodation interval 31 is formed between the second axial limiting member 29 and the drum 1. The second sealing rings 9 are restricted in the second accommodation interval 31 so that the second sealing rings 9 are arranged in a non-axially compressed state. In this way, the sealing rings are not in a compressed or dead state, enabling the sealing rings to adapt according to the rotation situation, thereby obtaining better sealing effect and sealing life.

[0039] In the present disclosure, as Figure 2 、 4 shown, the inner part 4 includes a first part 4.1 and a second part 4.2 that are not directly connected. The first section 3 is connected to the first part 4.1 to form an inlet flow channel 22, and the second part 4.2 is connected to the second section 5 to form an outlet flow channel 23. The first part 4.1 is provided with an outlet 24, and the second part 4.2 is provided with a discharge port 25; the so-called non-direct connection means that the refrigerant is directly sprayed into the drum 1 through the inlet flow channel 22 and the outlet 24. After the refrigerant absorbs heat and vaporizes, it enters the outlet flow channel 23 through the discharge port 25 to be discharged from the drum 1. Figure 4 The arrows shown indicate the general direction of the refrigerant flow.

[0040] In some embodiments, as Figure 2 、 4 shown, the outlet 24 is set as through holes sequentially arranged along the axis of the first part 4.1. These through holes are arranged on the tube wall of the first part 4.1. In this way, it is more conducive to the distribution of the refrigerant in the drum 1 to improve the refrigeration efficiency. In addition, there is no need to additionally provide capillary structures such as capillaries mentioned in the prior art.

[0041] The discharge port 25 is arranged as the opening at the left end of the second part 4.2, and the discharge port 25 is arranged near the end of the other end of the drum 1. In this way, it is further beneficial for the refrigerant to be distributed in the drum 1 to improve the refrigeration efficiency.

[0042] According to the structural solution of the present disclosure, the number and flow aperture size of the outlet 24, and the number and flow aperture size of the discharge port 25 can be set according to the refrigerant flow rate requirement. Currently, the number of the outlets 24 is set to 4, and the number of the discharge ports 25 is 1, but the flow aperture is relatively large, and the flow aperture is the entire left end of the second part 4.2.

[0043] Of course, the specific structure and number of the outlet 24, and the specific structure and number of the discharge port 25 can also be other structures, and it is impossible to list them all.

[0044] In some embodiments, as Figure 4 shown, the drum 1 can be obtained from a seamless stainless steel pipe with openings at both ends, and then the first support part 6 and the second support part 7 are respectively welded to both ends of the barrel body to cover the openings at both ends, so that the first support part 6, the second support part 7, and the drum 1 form an assembly. The first support part 6 and the second support part 7 can support the drum 1 to rotate together. In addition, the production and manufacturing are simple, which is beneficial to improving the production efficiency.

[0045] In some embodiments, as Figure 4 shown, the first section 3 is further provided with a first protective bushing 10, and the inner end of the first protective bushing 10 is rotatably sleeved and fitted with the end of one end of the drum 1; the second section 5 is further provided with a second protective bushing 11, and the inner end of the second protective bushing 11 is rotatably sleeved and fitted with the end of the other end of the drum 1. In this way, during relative rotation, it is beneficial to protect the first section 3 and the second section 5, thereby preventing refrigerant leakage. In addition, due to the rotatable sleeve fitting, the first protective bushing 10 and the second protective bushing 11 also play a supporting role similar to that of a bearing. The first protective bushing 10 and the second protective bushing 11 can be regarded as bushings, which is beneficial to the support of the entire refrigerant pipe 2, rather than relying on the support of the first sealing ring 8 and the second sealing ring 9.

[0046] As Figure 9 、 10 shown, the first protective bushing 10 can be integrally formed on the first section 3 through a pipe (such as a copper pipe, a stainless steel pipe, etc.), for example, by extrusion integral molding or turning on a pipe fitting. In this way, it is an integral structure. Of course, it can also be a separate first protective bushing 10 sleeved on the first section 3, and then welded between the first section 3 and the first protective bushing 10 without leaving a sleeve gap, as Figure 4As shown. Similarly, the second protective bushing 11 can be integrally formed on the second section 5 through the pipe, so that it is an integral structure. Of course, it can also be a separate second protective bushing 11 sleeved on the second section 5, and then welded between the second section 5 and the second protective bushing 11 without leaving a socket gap.

[0047] In some embodiments, such as Figure 4 As shown, the first protective bushing 10 extends outward and forms an annular space 12 with the first support portion 6. A first sealing ring 8 and a first axial limiting member 28 are provided in the annular space 12. The second protective bushing 11 extends outward and forms an annular space 12 with the second support portion 7. A second sealing ring 9 and a second axial limiting member 29 are provided in the annular space 12. In this way, on the one hand, the first protective bushing 10 and the second protective bushing 11 are used to support the sealing ring and the axial limiting member, simplifying the structure. On the other hand, the first protective bushing 10 and the second protective bushing 11 have sufficient length, so as to provide better protection for the first section 3 and the second section 5.

[0048] In some embodiments, such as Figure 1 , 4 As shown, the outer end of the first support portion 6 is connected with a first end cover 13. The first section 3 passes through the first end cover 13 outward and is rotatably matched. The outer end of the second support portion 7 is connected with a second end cover 14. The second section 5 passes through the second end cover 14 outward and is rotatably matched. In this way, the first support portion 6 and the second support portion 7 can be covered, so as to provide a certain protection to prevent foreign objects from entering and damaging the sealing ring.

[0049] In some embodiments, such as Figure 4 , 7 As shown, the outer end of the first support portion 6 is connected with a first end cover 13. The first section 3 passes through the first end cover 13 outward and is rotatably matched. The outer end of the first protective bushing 10 abuts against the first end cover 13. After the first end cover 13 is connected to the outer end of the first support portion 6, the first end cover 13 pushes the first protective bushing 10 inward through the abutting fit so that the inner end of the first protective bushing 10 restores the fit with the socket hole 26 at the end of one end of the drum 1 to reduce the exposed gap of the socket hole 26, that is, eliminate the space 12, so that the gap only needs to satisfy that the inner end of the first protective bushing 10 and the socket hole 26 at the end of one end of the drum 1 can rotate relative to each other. In this way, the assembly problem of the socket hole 26 and the first protective bushing 10 has a simple and compact structure, and in addition, it is convenient for production and manufacturing. At the same time, since the first protective bushing 10 is integrated or connected with the refrigerant pipe 2, the foregoing improvement also realizes the axial fixation problem of the refrigerant pipe 2, simplifies the axial fixation structure, and is beneficial to improving production efficiency.

[0050] Similarly, such a structure can also be provided on one side of the second section 5. Specifically, the outer end of the second support portion 7 is connected to a second end cap 14. The second section 5 passes through the second end cap 14 outwardly and is rotatably engaged therewith. The outer end of the second protective bushing 11 abuts against the second end cap 14. After the second end cap 14 is connected to the outer end of the second support portion 7, the second end cap 14 pushes the second protective bushing 11 inwardly through the said abutting engagement so that the inner end of the second protective bushing 11 resumes engagement with the socket holes 26 at both ends of the drum 1 to reduce the gap where the socket holes 26 are exposed, that is, as Figure 8 shown, the gap 12 is eliminated. At the same time, since the second protective bushing 11 and the refrigerant pipe 2 are also integrated or connected together, the above improvement better realizes the axial fixation problem of the refrigerant pipe 2, simplifies the axial fixation structure, and is beneficial to improving production efficiency.

[0051] After the above improvement, not only is the axial fixation of the refrigerant pipe 2 more reliable, which is beneficial to the yield rate of production and manufacturing, but also the assembly is extremely convenient, which is beneficial to improving production efficiency.

[0052] In some embodiments, as Figure 4 shown, a first gasket 15 is sleeved on the outer end of the first protective bushing 10. The outer end of the first protective bushing 10 abutting against the first end cap 13 means that the first gasket 15 abuts against the first end cap 13, and / or a second gasket 16 is sleeved on the outer end of the second protective bushing 11. The outer end of the second protective bushing 11 abutting against the second end cap 14 means that the second gasket 16 abuts against the second end cap 14. In this way, during continuous rotation, neither the first section 3 nor the second section 5 needs to bear the rotational friction force, nor do the first protective bushing 10 and the second protective bushing 11 need to bear the rotational friction force, so that the refrigerant pipe 2 can be maintained in a non-rotating state better.

[0053] If a gasket for reducing friction is used, the friction force can also be reduced, making the rotation smoother.

[0054] In some embodiments, as Figure 2 、 4 shown, the refrigerant pipe 2 is provided with an elastic structure, and this elastic structure is used to provide the elastic force required for the said abutment. The elastic structure can be many kinds of structures. For example, elastic members are provided at both ends of the refrigerant pipe 2, or the first gasket 15 and the second gasket 16 are made of elastic gaskets, or the refrigerant pipe 2 is set as an elastic pipe, such as the inner part 4 is set as a spiral structure, and the spiral structure generates an elastic force. Since it is impossible to list them all, any elastic structure applicable to the present disclosure can be adopted.

[0055] In this example, as Figure 2 、 4As shown, the elastic structure includes a spring 27 disposed in the drum 1. The first part 4.1, the spring 27, and the second part 4.2 are sequentially arranged along the axial direction of the drum 1. The spring 27 connects the first part 4.1 and the second part 4.2, and provides an elastic force between the first part 4.1 and the second part 4.2 along the axial direction and towards the outside. In this way, the structure is simpler.

[0056] Furthermore, as Figure 2 , 4 shown, the first section 3 and the first part 4.1 are arranged as the first copper tube, and the second part 4.2 and the second section 5 are arranged as the second copper tube, that is, two copper tubes are provided. The spring 27 is connected between the two copper tubes. The right end of the first copper tube is closed, and outlets 24 are sequentially arranged along the axial direction on the tube wall of the first copper tube. The left end of the second copper tube is open, and the open setting forms the discharge port 25.

[0057] The present disclosure also provides an ice maker, including a compressor, a scraper 17, and the shaved ice evaporator as Figure 5 shown. The scraper 17 is circumferentially arranged around the shaved ice evaporator, and the compressor supplies refrigerant to the refrigerant pipe 2 of the shaved ice evaporator.

[0058] By circulating the refrigerant through the compressor, the inner part 4 quickly cools the refrigerating oil. The cooled refrigerating oil quickly cools the outer peripheral surface of the drum 1 to facilitate the formation of an ice layer. As the ice layer thickens, the scraper 17 contacts the ice layer. Under the rotation of the drum 1, the scraper 17 cuts the ice layer to obtain shaved ice.

[0059] In some embodiments, as Figure 6 shown, it further includes an ice making bracket 19. The direct injection type shaved ice evaporator is installed on the ice making bracket 19. A first bearing 20 is provided between the first support portion 6 of the direct injection type shaved ice evaporator and the ice making bracket 19, and a second bearing 21 is provided between the second support portion 7 of the direct injection type shaved ice evaporator and the ice making bracket 19. The direct injection type shaved ice evaporator rotates relative to the ice making bracket 19 through the first bearing 20 and the second bearing 21. In this way, through the first bearing 20 and the second bearing 21, the assembly composed of the first support portion 6, the second support portion 7, and the drum 1 rotates more stably.

[0060] As Figure 6 shown, in order to drive the drum 1 to rotate, in this example, a transmission gear 18 is provided on the second support portion 7. Through an electric motor, and then through a gear transmission structure, the transmission gear 18 can be driven, thereby further driving the second support portion 7, so that the assembly composed of the first support portion 6, the second support portion 7, and the drum 1 rotates together.

[0061] When understanding the present utility model, if necessary, the above structure may refer to other embodiments / attachments Figure 1 and be understood, which will not be elaborated here.

[0062] The above are only the exemplary embodiments of the present utility model. Therefore, all equivalent changes or modifications made according to the structure, features and principles described in the protection scope of the present utility model patent are included in the protection scope of the present utility model patent.

Claims

1. A direct-injection shredded ice evaporator, comprising a drum (1) whose outer periphery is used for ice formation, characterized in that: It further includes a refrigerant pipe (2) which is used for circulating refrigerant. The refrigerant pipe (2) extends from one end of the drum (1) to the other end. The refrigerant pipe (2) is sequentially provided with a first section (3), an inner part (4) and a second section (5) in the direction from one end of the drum (1) to the other end. The first section (3) is rotatably sleeved and fitted with the end of one end of the drum (1), and the second section (5) is rotatably sleeved and fitted with the end of the other end of the drum (1). The inner part (4) is located in the drum (1). The inner part (4) includes a first part (4.1) and a second part (4.2) which are not directly connected. The first section (3) is communicated with the first part (4.1) to form an inlet flow channel (22), and the second part (4.2) is communicated with the second section (5) to form an outlet flow channel (23). The first part (4.1) is provided with an outlet (24), and the second part (4.2) is provided with a discharge port (25). The so-called "not directly connected" means that the refrigerant is directly sprayed into the drum (1) through the inlet flow channel (22) and the outlet (24). After the refrigerant absorbs heat and vaporizes, it enters the outlet flow channel (23) through the discharge port (25) to be discharged from the drum (1). A first support part (6) is further sleeved on the outer periphery of the first section (3) at the end of one end of the drum (1), and a second support part (7) is further sleeved on the outer periphery of the second section (5) at the end of the other end of the drum (1). The first support part (6) and the second support part (7) are used to support the drum (1) to rotate together. At the same time, a first sealing ring (8) and a first axial limiting member (28) are provided in the annular space (12) between the first support part (6) and the first section (3). The first axial limiting member (28) is used to limit the axial movement of the first sealing ring (8). A second sealing ring (9) and a second axial limiting member (29) are provided in the annular space (12) between the second support part (7) and the second section (5). The second axial limiting member (29) is used to limit the axial movement of the second sealing ring (9). When the first support part (6), the second support part (7) and the drum (1) rotate together, the assembly composed of the first support part (6), the second support part (7) and the drum (1) rotates relative to the refrigerant pipe (2), while the refrigerant pipe (2) does not rotate.

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

3. A direct-injection shaved ice evaporator according to claim 1 or 2, characterized in that: A first accommodation interval (30) is formed between the first axial limiting member (28) and the separation drum (1), and the first sealing ring (8) is restricted in the first accommodation interval (30) so that the first sealing ring (8) is arranged in a non-axially compressed state; a second accommodation interval (31) is formed between the second axial limiting member (29) and the separation drum (1), and the second sealing ring (9) is restricted in the second accommodation interval (31) so that the second sealing ring (9) is arranged in a non-axially compressed state.

4. A direct-injection shaved ice evaporator according to claim 1 or 2, characterized in that: The first section (3) is further provided with a first protective bushing (10). A first sealing ring (8) and a first axial limiting member (28) are arranged in an annular interval (12) between the first support portion (6) and the first protective bushing (10). The inner end of the first protective bushing (10) is rotatably sleeved and matched with the end of one end of the drum (1); the second section (5) is further provided with a second protective bushing (11). A second sealing ring (9) and a second axial limiting member (29) are arranged in an annular interval (12) between the second support portion (7) and the second protective bushing (11). The inner end of the second protective bushing (11) is rotatably sleeved and matched with the end of the other end of the drum (1).

5. The direct-injection shaved ice evaporator according to claim 4, characterized in that: The outer end of the first support portion (6) is connected with a first end cover (13). The first section (3) passes through the first end cover (13) outward and is rotatably matched. The outer end of the first protective bushing (10) abuts against the first end cover (13), and / or the outer end of the second support portion (7) is connected with a second end cover (14). The second section (5) passes through the second end cover (14) outward and is rotatably matched. The outer end of the second protective bushing (11) abuts against the second end cover (14).

6. The direct-injection shaved ice evaporator according to claim 5, characterized in that: After the first end cover (13) is connected to the outer end of the first support portion (6), the first end cover (13) pushes the first protective bushing (10) inward through the above-mentioned abutting fit so that the inner end of the first protective bushing (10) is rotatably matched with the socket hole (26) at the end of one end of the drum (1) to reduce the exposed gap of the socket hole (26), and / or after the second end cover (14) is connected to the outer end of the second support portion (7), the second end cover (14) pushes the second protective bushing (11) inward through the above-mentioned abutting fit so that the inner end of the second protective bushing (11) is rotatably matched with the socket hole (26) at the end of the other end of the drum (1) to reduce the exposed gap of the socket hole (26).

7. The direct-injection shaved ice evaporator according to claim 5, characterized in that: A first gasket (15) is sleeved on the outer end of the first protective bushing (10). The fact that the outer end of the first protective bushing (10) abuts against the first end cover (13) means that the first gasket (15) abuts against the first end cover (13), and / or a second gasket (16) is sleeved on the outer end of the second protective bushing (11). The fact that the outer end of the second protective bushing (11) abuts against the second end cover (14) means that the second gasket (16) abuts against the second end cover (14).

8. A direct-injection shaved ice evaporator according to claim 5, 6 or 7, characterized in that: The refrigerant pipe (2) is provided with an elastic structure, and this elastic structure is used to provide the elastic force required for the above-mentioned abutting.

9. The direct-injection shaved ice evaporator according to claim 8, characterized in that: The elastic structure comprises a spring (27), wherein the spring (27) is arranged in the drum (1), wherein the first part (4.1), the spring (27), and the second part (4.2) are arranged in sequence along the axial direction of the drum (1), and the first part (4.1) and the second part (4.2) are connected by the spring (27), and the spring (27) provides an elastic force between the first part (4.1) and the second part (4.2) along the axial direction and in an outward direction.

10. An ice maker, comprising a compressor, a scraper (17), and a direct-injection fluffy ice evaporator, wherein the scraper (17) is circumferentially arranged on the direct-injection fluffy ice evaporator, and the compressor supplies refrigerant to a refrigerant pipe (2) of the direct-injection fluffy ice evaporator, and is characterized in that: The direct-injection type slushy ice evaporator adopts the direct-injection type slushy ice evaporator according to any one of claims 1 to 9.

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