Ice maker and ice maker evaporator

Abstract

The utility model discloses an evaporimeter and ice maker for ice maker, it includes the ice making inner tube with water inlet cavity and along one axial direction extension, the ice making outer tube with refrigerant cavity and the sleeve setting in ice making inner tube outside, set up in water inlet cavity and along the axial direction extension screw rod and be located in refrigerant cavity and be located between ice making inner tube and ice making outer tube and interval arrangement in the axial direction several flow guides, wherein the flow guide allows the refrigerant to pass in the axial direction. The utility model has the advantages that: can make the refrigerant in refrigerant cavity from below to above in turn even distribution, can let evaporimeter heat exchange area double again, in addition can increase the spoiler when the refrigerant flows upward, make the refrigerant flow under the turbulent state, effectively increase the heat exchange effect of evaporimeter, realize ice making process fast and smooth finally, prevent the ice block that accumulates and block the ice channel, and can effectively reduce the height size of evaporimeter, save the energy and reduce the machine size.

Description

Technical Field

[0001] This utility model relates to the field of ice making, and in particular to an evaporator for an ice maker and an ice maker. Background Technology

[0002] Ice makers typically consist of an inner ice-making cylinder and an outer ice-making cylinder located outside the inner cylinder. The refrigerant circulates gaseously and liquidally around the outer edge of the inner cylinder to continuously absorb heat, thus converting the water inside the inner cylinder into ice. However, within the closed cylindrical cavity formed by welding the inner and outer ice-making cylinders, the refrigerant boiling and heat absorption process cannot be effectively controlled. Uneven boiling heat exchange areas result in excessively thick ice buildup in certain areas, which, over time, can easily clog the ice outlet, affecting product reliability and leading to a poor user experience. A similar technology can be found in Chinese Invention Publication Patent CN114646160A, therefore, improvements are necessary. Utility Model Content

[0003] The purpose of this invention is to provide an evaporator and an ice maker for an ice maker, with a uniformly distributed heat exchange surface, enabling a fast and smooth ice-making process and preventing accumulated ice from clogging the ice outlet channel. The first technical solution of this utility model is: an evaporator for an ice maker and an ice maker, which includes an ice-making inner cylinder having a water inlet chamber and extending along an axial direction, an ice-making outer cylinder having a refrigerant chamber and sleeved outside the ice-making inner cylinder, a screw disposed in the water inlet chamber and extending along an axial direction, and a plurality of flow guides located in the refrigerant chamber and between the ice-making inner cylinder and the ice-making outer cylinder and spaced apart in the axial direction, wherein the flow guides allow the refrigerant to pass through in the axial direction. Based on the first technical solution, the following supplementary technical solutions are further included: The flow guide includes an annular body and a flow guide opening surrounded by the annular body and allowing the ice-making inner cylinder to pass through. The annular body has a number of notches arranged circumferentially to allow refrigerant to pass through in the axial direction. The notch is triangular, quadrilateral, arc-shaped, fan-shaped, or wavy, and the annular body is a metal sheet. The flow guide is welded to the inner ice-making cylinder, or the flow guide is sleeved inside the outer ice-making cylinder. The screw includes a screw head at one end, a screw tail at the other end, and a helical blade located between the screw head and the screw tail. It also includes a shaper that engages with the screw head drive, and a bushing located radially between the shaper and the screw head. It also includes a water inlet pipe connected to the water inlet chamber, a refrigerant inlet pipe connected to one end of the refrigerant chamber, and a refrigerant outlet pipe connected to the other end of the refrigerant chamber. The refrigerant inlet pipe is arranged adjacent to the water inlet pipe, and the refrigerant outlet pipe is arranged adjacent to the shaper. The cross-sectional area of ​​the notch gradually increases in the radial outward direction, and a protrusion is provided between two adjacent notches, wherein the notch of one guide element corresponds to the notch of another guide element in the axial direction. The second technical solution of this utility model is: an ice maker, which includes an evaporator for ice making and a motor, wherein the evaporator for ice making is the same as the evaporator for ice making in the first technical solution, and wherein the motor drives one end of the screw to rotate. The advantages of this invention are as follows: During operation, the refrigerant flows upward between multiple guide members, which are welded to the ice-making inner cylinder. These guide members ensure that the refrigerant is evenly distributed from bottom to top within the refrigerant chamber, effectively doubling the heat exchange area of ​​the evaporator. Furthermore, the notches in the guide members increase turbulence as the refrigerant flows upward, creating a turbulent flow that effectively enhances the heat exchange efficiency of the evaporator. This results in a fast and smooth ice-making process, preventing accumulated ice from clogging the ice outlet channel. Moreover, under the same heat exchange conditions, the evaporator height can be effectively reduced, saving energy and decreasing the machine's overall size. Attached Figure Description

[0004] Figure 1 This is a perspective view of the present invention from a first-person perspective; Figure 2 This is a perspective view of the present invention from a second perspective; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is an exploded view of the present invention; Figure 5 This is a perspective view of the flow guide component in this utility model. Detailed Implementation

[0005] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Example: Figure 1-5 As shown, this utility model discloses a first embodiment of an evaporator for an ice maker, which includes: an ice-making inner cylinder 100 having a water inlet chamber 120 and extending along an axial direction; an ice-making outer cylinder 200 having a refrigerant chamber 220 and sleeved outside the ice-making inner cylinder 100; a screw 300 disposed in the water inlet chamber 120 and extending along an axial direction; and a plurality of flow guides 400 located in the refrigerant chamber 220 and between the ice-making inner cylinder 100 and the ice-making outer cylinder 200 and spaced apart in the axial direction, wherein the flow guides 400 allow refrigerant to pass through in the axial direction. The flow guide 400 includes an annular body 420 and a flow guide opening 440 surrounded by the annular body 420 and allowing the ice-making inner cylinder 100 to pass through. The annular body 420 has a plurality of notches 426 spaced circumferentially apart on its outer side, allowing refrigerant to pass through in the axial direction, and a plurality of protrusions 424 located between adjacent notches 426. The notches 426 are triangular, quadrilateral, arc-shaped, fan-shaped, or wavy, and the annular body 420 is a metal sheet. The cross-sectional area of ​​the notches 426 gradually increases in the radially outward direction. In this embodiment, the protrusions 424 are trapezoidal, but can also be other polygonal shapes. The flow guide 400 is welded to the ice-making inner cylinder 100, or welded to the ice-making outer cylinder 200. The notches 426 of one flow guide 400 correspond to the notches 426 of another flow guide 400 in the axial direction. The screw 300 includes a screw head 320 at one end, a screw tail 340 at the other end, and a helical blade 360 ​​located between the screw head 320 and the screw tail 340. This embodiment also includes a shaper 500 that drives the screw head 320, and a bushing 520 located radially between the shaper 500 and the screw head 320. This embodiment also includes a water inlet pipe 140 connected to the water inlet chamber 120, a refrigerant inlet pipe 240 connected to one end of the refrigerant chamber 220, and a refrigerant outlet pipe 260 connected to the other end of the refrigerant chamber 220. The refrigerant inlet pipe 240 is arranged adjacent to the water inlet pipe 140, and the refrigerant outlet pipe 260 is arranged adjacent to the shaper 500. Based on the first embodiment, this utility model discloses a second embodiment of an ice maker, which includes: an evaporator for ice makers and a motor, wherein the evaporator for ice makers is the same as the evaporator for ice makers in the first embodiment, and the motor drives one end of the screw 300 to rotate. The motor can be a top-mounted motor or a bottom-mounted motor. During operation, water is injected into the water inlet pipe 140 at the bottom and enters the water inlet chamber 120. Refrigerant is injected into the refrigerant inlet pipe 240 and enters the refrigerant chamber 220 for heat exchange. The water in the water inlet chamber 120 begins to turn into ice. Driven by the screw 300, the ice is squeezed upwards and shaped and output by the shaper 500. The refrigerant flows turbulently along the multiple gaps 426 between the multiple guide members 400. The annular body 420 of the multiple guide members 400 expands the heat transfer area, increasing the refrigerant flow rate and heat transfer coefficient. This results in a uniform distribution of the heat exchange surface on the inner wall of the ice-making cylinder 100, achieving a fast and smooth ice-making process. This prevents problems such as uncontrolled refrigerant flow leading to uneven heating within the chamber and ice blockage of the ice outlet channel. The advantages of this invention are as follows: During operation, the refrigerant flows upward between multiple guide members, which are welded to the ice-making inner cylinder. These guide members ensure that the refrigerant is evenly distributed from bottom to top within the refrigerant chamber, effectively doubling the heat exchange area of ​​the evaporator. Furthermore, the notches in the guide members increase turbulence as the refrigerant flows upward, creating a turbulent flow that effectively enhances the heat exchange efficiency of the evaporator. This results in a fast and smooth ice-making process, preventing accumulated ice from clogging the ice outlet channel. Moreover, under the same heat exchange conditions, the evaporator height can be effectively reduced, saving energy and decreasing the machine's overall size. Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. An evaporator for an ice maker, characterized in that... It includes: The ice-making inner cylinder (100) has a water inlet cavity (120) and extends along an axial direction, the ice-making outer cylinder (200) has a refrigerant cavity (220) and is sleeved outside the ice-making inner cylinder (100), the screw (300) is disposed in the water inlet cavity (120) and extends along an axial direction, and a plurality of guide members (400) are located in the refrigerant cavity (220) and between the ice-making inner cylinder (100) and the ice-making outer cylinder (200) and are spaced apart in the axial direction, wherein the guide members (400) allow the refrigerant to pass through in the axial direction.

2. An evaporator for an ice maker according to claim 1, characterized in that: The flow guide (400) includes an annular body (420) and a flow guide opening (440) surrounded by the annular body (420) and allowing the ice-making inner cylinder (100) to pass through, wherein the annular body (420) has a plurality of notches (426) arranged circumferentially to allow refrigerant to pass through in the axial direction.

3. An evaporator for an ice maker according to claim 2, characterized in that: The notch (426) is triangular, quadrilateral, arc-shaped, fan-shaped or wavy, and the annular body (420) is a metal sheet.

4. An evaporator for an ice maker according to claim 1, 2, or 3, characterized in that... The flow guide (400) is welded to the ice-making inner cylinder (100), or the flow guide (400) is sleeved inside the ice-making outer cylinder (200).

5. An evaporator for an ice maker according to claim 4, characterized in that: The screw (300) includes a screw head (320) at one end, a screw tail (340) at the other end, and a helical blade (360) located between the screw head (320) and the screw tail (340).

6. An evaporator for an ice maker according to claim 5, characterized in that... It also includes a shaper (500) that engages with the screw head (320) and a bushing (520) located radially between the shaper (500) and the screw head (320).

7. An evaporator for an ice maker according to claim 6, characterized in that... It also includes a water inlet pipe (140) connected to the water inlet chamber (120), a refrigerant inlet pipe (240) connected to one end of the refrigerant chamber (220), and a refrigerant outlet pipe (260) connected to the other end of the refrigerant chamber (220).

8. An evaporator for an ice maker according to claim 7, characterized in that: The refrigerant inlet pipe (240) is arranged adjacent to the water inlet pipe (140), and the refrigerant outlet pipe (260) is arranged adjacent to the shaper (500).

9. An evaporator for an ice maker according to claim 2, characterized in that: The cross-sectional area of ​​the notch (426) gradually increases in the radial outward direction, and a protrusion (424) is provided between two adjacent notches (426), wherein the notch (426) of one guide (400) corresponds to the notch (426) of the other guide (400) in the axial direction.

10. An ice maker, characterized in that... It includes an evaporator for an ice maker and a motor, wherein the evaporator for an ice maker is the evaporator for an ice maker as described in claim 1, and wherein the motor drives one end of a screw (300) to rotate.

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