Evaporator and ice maker

Abstract

The utility model relates to the technical field of refrigeration equipment, and provides an evaporator which comprises an ice bucket and a sleeve, the sleeve is arranged on the outer side wall of the ice bucket in a sleeving mode, a refrigeration cavity is formed between the ice bucket and the sleeve, and the refrigeration cavity is used for circulation of cooling liquid; the sleeve is sunken in the direction close to the outer wall of the ice bucket, and a plurality of sunken parts are formed. The sunken parts are distributed in the height direction of the ice bucket at intervals and divide the refrigeration cavity into a plurality of cooling parts, and the distance between the sunken parts and the outer wall of the ice bucket is smaller than the distance between the cooling parts and the outer wall of the ice bucket. The lower end of the sleeve is provided with a liquid inlet allowing cooling liquid to enter, and the upper end of the sleeve is provided with a liquid outlet allowing the cooling liquid to flow out. The effect of improving the cooling capacity conduction efficiency of the evaporator is achieved. In addition, the utility model also provides an ice maker.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to an evaporator and an ice maker. Background Art

[0002] An ice maker is a refrigeration machine that cools water through an evaporator through a refrigeration system to produce ice cubes. The evaporator is a key component in a refrigerator, and its main function is to achieve a cooling effect through heat exchange between the refrigerant and the medium to be cooled.

[0003] In the existing evaporator technology, a scraper is usually installed in the sleeve, and a drive assembly is connected to the bottom of the scraper. The drive assembly drives the scraper to rotate, and water enters the sleeve from the bottom of the sleeve and forms a water film on the scraper blade. The water film exchanges heat with the refrigerant during the rising process to form liquid ice, and is pushed and squeezed by the scraper through the ice head at the top of the sleeve.

[0004] In order to enhance the heat exchange effect, a heat exchange pipe is usually wound around the outside of the sleeve, or a spiral channel is provided on the outside of the sleeve.

[0005] Regarding the above-mentioned related technologies, although this form of heat exchange can improve the heat exchange efficiency to a certain extent, it still fails to fully tap the potential of the evaporator and there is room for improvement in the cold transfer efficiency. Utility Model Content

[0006] In order to improve the cooling efficiency of the evaporator, the present application provides an evaporator.

[0007] In the first aspect, the present application provides an evaporator adopting the following technical solution:

[0008] An evaporator comprises an ice bucket and a sleeve, wherein the sleeve is sleeved on the outer wall of the ice bucket, a refrigeration cavity is formed between the ice bucket and the sleeve, and the refrigeration cavity is used for circulating cooling liquid; the sleeve is recessed in a direction close to the outer wall of the ice bucket and is formed with a plurality of recessed parts; the recessed parts are spaced apart along the height direction of the ice bucket and divide the refrigeration cavity into a plurality of cooling parts, and the distance between the recessed parts and the outer wall of the ice bucket is smaller than the distance between the cooling parts and the outer wall of the ice bucket; the lower end of the sleeve is provided with a liquid inlet for cooling liquid to enter, and the upper end of the sleeve is provided with a liquid outlet for cooling liquid to flow out.

[0009] By adopting the above technical solution, the coolant enters the cooling part at the bottom of the sleeve from the liquid inlet, and after the coolant overflows the cooling part below, the coolant enters the adjacent cooling part through the recessed part. During the cooling process of the water in the ice bucket, the coolant has a better cooling effect on the outer wall of the ice bucket because the coolant flows slowly in the refrigeration cavity and the contact area between the coolant and the ice bucket is large, thereby improving the cooling efficiency of the coolant.

[0010] Preferably, the recessed portion is extended along the circumference of the sleeve.

[0011] By adopting the above technical solution, the recessed portion is arranged along the circumferential direction, which can improve the uniformity of the distribution of the coolant in the refrigeration cavity and ensure the contact area between the coolant and the ice bucket.

[0012] Preferably, the sleeve portion is made of thermal insulation material.

[0013] By adopting the above technical solution, the sleeve made of thermal insulation material has poor thermal conductivity, which can reduce the heat transfer between the coolant in the sleeve and the external air, reduce the rise in the coolant temperature, and improve the refrigeration effect.

[0014] Preferably, it further comprises a chassis, wherein the chassis is connected to the bottom of the ice bucket, and a plurality of mounting holes are formed on the chassis, each of the mounting holes being used for an external fastener to pass through.

[0015] By adopting the above technical solution, the ice bucket is installed on the chassis, and the chassis is locked and fixed by fasteners passing through the installation holes, thereby completing the installation of the evaporator.

[0016] Preferably, it also includes a driving member and a driving shaft, wherein the driving shaft is rotatably connected to the ice bucket, the driving member is connected to one end of the driving shaft and is used to control the rotation of the driving shaft, and a scraper is spirally arranged on the driving shaft, and the scraper extends along the height direction of the ice bucket; the bottom of the ice bucket is connected to a water inlet pipe, and the top of the ice bucket is provided with a plurality of ice outlet holes.

[0017] By adopting the above technical solution, the driving member can control the driving shaft to rotate, thereby driving the scraper to rotate in a spiral. The water in the ice bucket forms a water film on the scraper, and the water film transfers heat with the coolant during the rising process to form liquid ice, which is finally squeezed out from the ice outlet hole under the upward push of the scraper.

[0018] Preferably, a clearance groove is provided on the inner wall of the ice bucket, and the clearance groove is arranged along the spiral direction of the scraper and is used for the scraper to abut against.

[0019] By adopting the above technical solution, when the scraper is rotating, the clearance groove can make way for the rotation of the scraper, thereby reducing the scraping between the scraper and the inner wall of the ice bucket.

[0020] Preferably, the ice bucket is made of heat-conducting material.

[0021] By adopting the above technical solution, the ice bucket made of heat-conducting material has good thermal conductivity, which can better realize the heat exchange between the coolant in the sleeve and the water in the ice bucket, thereby improving the ice-making effect.

[0022] In a second aspect, the present application also provides an ice making machine, which adopts the following technical solution:

[0023] An ice-making machine comprises the entire structure of the evaporator.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] (1) By providing a recessed portion and a cooling portion on the sleeve, the flow velocity of the coolant in the refrigeration chamber can be reduced, the contact area between the coolant and the ice bucket can be increased, and the contact time between the two can be prolonged, so that the coolant has a better cooling effect on the outer wall of the ice bucket, thereby improving the cold conduction efficiency of the coolant.

[0026] (2) By using thermal insulation material to make the sleeve part, the heat transfer between the coolant in the sleeve and the external air can be reduced.

[0027] (3) By providing a clearance groove on the inner wall of the ice bucket, the clearance groove can make room for the rotation of the scraper, thereby reducing the scratching between the scraper and the inner wall of the ice bucket. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the structure of the evaporator in the embodiment of the present application;

[0029] Figure 2 It is a schematic diagram of the explosion of the evaporator AA in the embodiment of the present application.

[0030] Figure numerals: 1. chassis; 2. ice bucket; 3. sleeve; 4. mounting hole; 5. refrigeration chamber; 6. recessed portion; 7. cooling portion; 8. liquid inlet; 9. liquid outlet; 10. driving shaft; 11. scraper; 12. driving member; 13. water inlet pipe; 14. clearance groove; 15. ice outlet hole. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0032] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0035] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples shown in the present application.

[0036] Example 1

[0037] The present application embodiment discloses an evaporator. Figure 1 The evaporator includes a chassis 1, an ice bucket 2 and a sleeve 3. The bottom of the ice bucket 2 is fixedly connected to the chassis 1. The chassis 1 is provided with a plurality of mounting holes 4. As shown in the figure, there are four mounting holes 4. The mounting holes 4 are used for external fasteners to pass through. The fasteners are fastening bolts or fastening screws. The chassis 1 is fixed by the fasteners, so that the position of the ice bucket 2 is fixed.

[0038] The sleeve 3 is sleeved on the outer wall of the ice bucket 2, and a refrigeration cavity 5 is formed between the ice bucket 2 and the sleeve 3, and the refrigeration cavity 5 is used for the circulation of cooling liquid. The sleeve 3 is recessed in the direction close to the outer wall of the ice bucket 2, and a plurality of recessed parts 6 are formed; the recessed parts 6 are arranged along the circumference of the sleeve 3, and the recessed parts 6 are spaced apart along the height direction of the ice bucket 2, and the refrigeration cavity 5 is divided into a plurality of cooling parts 7, and the distance between the recessed parts 6 and the outer wall of the ice bucket 2 is smaller than the distance between the cooling parts 7 and the outer wall of the ice bucket 2. The lower end of the sleeve 3 is provided with a liquid inlet 8 for the cooling liquid to enter, and the upper end of the sleeve 3 is provided with a liquid outlet 9 for the cooling liquid to flow out.

[0039] The coolant enters the cooling part 7 at the bottom of the sleeve 3 from the liquid inlet 8. After the coolant overflows the cooling part 7 below, the coolant enters the adjacent cooling part 7 through the recessed part 6. During the cooling process of the water in the ice bucket 2, the coolant has a better cooling effect on the outer wall of the ice bucket 2 because the coolant flows slowly in the refrigeration cavity 5 and the contact area between the coolant and the ice bucket 2 is large, thereby improving the cooling efficiency of the coolant.

[0040] In this embodiment, the ice bucket 2 is made of a heat-conducting material. The ice bucket 2 made of a heat-conducting material has good thermal conductivity, which can better realize the heat exchange between the coolant in the sleeve 3 and the water in the ice bucket 2, thereby improving the ice-making effect. The sleeve 3 is made of a heat-insulating material. The sleeve 3 made of a heat-insulating material has poor thermal conductivity, which can reduce the heat transfer between the coolant in the sleeve 3 and the external air, reduce the rise in the temperature of the coolant, and improve the refrigeration effect.

[0041] Specifically, a driving shaft 10 is rotatably connected in the ice bucket 2, and the driving shaft 10 uses the height direction of the ice bucket 2 as a rotating axis. A scraper 11 is fixedly connected to the driving shaft 10, and the scraper 11 is spirally arranged along the length direction of the driving shaft 10. A driving member 12 is also installed on the ice bucket 2, and the driving member 12 is a driving motor. The output shaft of the driving motor is connected to the driving shaft 10 and is used to control the rotation of the driving shaft 10. The bottom of the ice bucket 2 is connected to a water inlet pipe 13, and the water inlet pipe 13 is used for water to enter; the top of the ice bucket 2 is also provided with a plurality of ice outlet holes 15. As shown in the figure, the number of ice outlet holes 15 in this embodiment is four, and each ice outlet hole 15 is used to push out ice cubes made by the ice bucket 2.

[0042] Liquid water enters the bottom of the ice bucket 2 from the water inlet pipe 13, and the driving member 12 can control the driving shaft 10 to rotate, and the scraper 11 rotates in a spiral. The water in the ice bucket 2 forms a water film on the scraper 11, and the water film transfers heat with the coolant during the spiral rising process to form liquid ice, and is finally squeezed out from the ice outlet hole 15 under the upward push of the scraper 11.

[0043] In addition, a clearance groove 14 is provided on the inner wall of the ice bucket 2, and the clearance groove 14 is arranged along the spiral direction of the scraper 11 and is used for the scraper 11 to abut against. When the scraper 11 rotates, the clearance groove 14 can make way for the rotation of the scraper 11, thereby reducing the scraping between the scraper 11 and the inner wall of the ice bucket 2.

[0044] The implementation principle of an evaporator in an embodiment of the present application is as follows: water enters the bottom of the ice bucket 2 from the water inlet pipe 13, and the drive member 12 is used to control the scraper 11 to rotate in a spiral, so that the water in the ice bucket 2 forms a water film on the scraper 11. At the same time, the coolant enters the cooling part 7 at the bottom of the sleeve 3 from the liquid inlet 8. After the coolant overflows the cooling part 7 below, the coolant passes through the recessed part 6 and enters the adjacent cooling part 7 until it overflows the entire refrigeration cavity 5. The water film transfers heat with the coolant during the spiral ascent to form liquid ice, and is finally squeezed out of the ice outlet hole 15 under the upward push of the scraper 11. By reducing the flow rate of the coolant in the refrigeration cavity 5, increasing the contact area between the coolant and the ice bucket 2, and extending the contact time between the two, the coolant has a better cooling effect on the outer wall of the ice bucket 2, and the cooling efficiency of the coolant is improved.

[0045] Example 2

[0046] Based on the above embodiments, the present application further provides an ice-making machine, which includes an evaporator with all the above structures. Since the evaporator has been discussed in detail in the previous text, it will not be repeated here.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An evaporator, characterized in that: The invention comprises an ice bucket (2) and a sleeve (3), wherein the sleeve (3) is sleeved on the outer wall of the ice bucket (2), a refrigeration cavity (5) is formed between the ice bucket (2) and the sleeve (3), and the refrigeration cavity (5) is used for circulating cooling liquid; the sleeve (3) is recessed in a direction close to the outer wall of the ice bucket (2), and is provided with a plurality of recessed parts (6); the recessed parts (6) are spaced apart in the height direction of the ice bucket (2), and the refrigeration cavity (5) is divided into a plurality of cooling parts (7), and the distance between the recessed parts (6) and the outer wall of the ice bucket (2) is smaller than the distance between the cooling parts (7) and the outer wall of the ice bucket (2); the lower end of the sleeve (3) is provided with a liquid inlet (8) for the cooling liquid to enter, and the upper end of the sleeve (3) is provided with a liquid outlet (9) for the cooling liquid to flow out.

2. An evaporator according to claim 1, characterized in that: The recessed portion (6) is arranged to extend along the circumference of the sleeve (3).

3. An evaporator according to claim 1, characterized in that: The sleeve (3) is made of thermal insulation material.

4. An evaporator according to claim 1, characterized in that: It also comprises a bottom plate (1), the bottom plate (1) being connected to the bottom of the ice bucket (2), the bottom plate (1) being provided with a plurality of mounting holes (4), each of the mounting holes (4) being used for an external fastener to pass through.

5. An evaporator according to claim 1, characterized in that: The ice bucket (2) further comprises a driving member (12) and a driving shaft (10), wherein the driving shaft (10) is rotatably connected to the inside of the ice bucket (2), the driving member (12) is connected to one end of the driving shaft (10) and is used to control the rotation of the driving shaft (10), a scraper (11) is spirally arranged on the driving shaft (10), and the scraper (11) extends along the height direction of the ice bucket (2); the bottom of the ice bucket (2) is connected to a water inlet pipe (13), and the top of the ice bucket (2) is provided with a plurality of ice outlet holes (15).

6. An evaporator according to claim 5, characterized in that: A clearance groove (14) is provided on the inner wall of the ice bucket (2); the clearance groove (14) is arranged along the spiral direction of the scraper (11) and is used for the scraper (11) to abut against.

7. An evaporator according to claim 1, characterized in that: The ice bucket (2) is made of heat-conducting material.

8. An ice making machine, characterized in that: It comprises the evaporator as described in any one of claims 1-7.

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