Ice blade positioning structure of ice maker evaporator
By incorporating bearings and limiting structures within the evaporator of the ice maker, the instability of the ice blades during operation is resolved, ensuring stable fixation of the ice blades, preventing damage to the gearbox assembly, and guaranteeing the normal operation of the ice maker.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN DONLIM WEILI ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-24
AI Technical Summary
The ice blades of existing ice makers' evaporators are prone to deformation and downward movement under stress during operation, causing them to come into contact with the gearbox assembly, increasing the gap and damaging the gearbox assembly.
A bearing is installed inside the inner tube, and the ice skate is rotatably connected to the bearing and fixed by a limiting step and a limiting fit. Combined with a tapered thrust bearing, the ice skate is prevented from moving downwards, ensuring the stability of the ice skate.
It effectively prevents ice blades from deforming and shifting during operation, reduces damage to gearbox components, and ensures the normal operation of the ice maker.
Smart Images

Figure CN224162801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporator technology, and in particular to an ice blade positioning structure for an ice maker evaporator. Background Technology
[0002] Commercially available chewing ice evaporators consist of an inner barrel, ice blades, and an ice extrusion head. The ice blades rotate inside the inner barrel, while the ice extrusion head is located at the top of the inner barrel and has an ice outlet. When the ice blades rotate, they push the ice in the inner barrel against the ice extrusion head, forcing the ice out through the outlet. While scraping the ice in the inner barrel, the ice blades experience both lateral and vertical forces. As they push the ice against the extrusion head, a significant downward force is exerted. If the ice blades are not reliably secured, the scraping and extruding forces can cause them to move downwards, increasing the gap between the top of the ice blade and the ice extrusion head. This increased gap leads to a thicker ice layer, resulting in greater stress on the gearbox assembly. Furthermore, this downward force can damage the gearbox assembly.
[0003] Therefore, further improvements are necessary. Utility Model Content
[0004] The purpose of this invention is to provide an ice blade positioning structure for an ice maker evaporator that is simple in structure, has good positioning effect, can prevent ice blades from moving downwards, and is highly practical, so as to overcome the shortcomings of the prior art.
[0005] An ice blade positioning structure for an ice maker evaporator designed for this purpose includes an ice blade rotatably disposed inside an inner barrel. The structure is characterized by further including a bearing fixed inside the inner barrel, with the ice blade rotatably connected to the bearing and the ice blade pressing downward against the bearing.
[0006] The ice skate has a limiting step, and the bearing has a limiting part. The ice skate presses down against the limiting part of the bearing through the limiting step.
[0007] The ice skate has a connecting section, and the bearing has a rotating hole. The connecting section is rotatably connected to the rotating hole.
[0008] The top of the inner tube is equipped with an ice extrusion head, and the top of the ice blade is equipped with a limiting fitting part. The ice blade moves upward to the ice extrusion head through the limiting fitting part; the ice extrusion head is equipped with an ice outlet hole.
[0009] The bottom of the inner tub is equipped with a base, and the base is equipped with a positioning groove, on which the bearing is positioned and installed.
[0010] The inner tub has a first fixing hole, and the base has a second fixing hole. Fasteners pass through the first fixing hole and are then fastened to the second fixing hole to fix the base to the inner tub.
[0011] The bottom of the positioning groove is provided with a positioning surface, and the upper and lower limits of the bearing are located between the limiting step and the positioning surface.
[0012] The ice skate has an extrusion section with a diameter larger than that of the connecting section, so that a limiting step is formed between the extrusion section and the connecting section.
[0013] The extrusion section is equipped with spiral blades for pushing ice blocks to the extrusion head.
[0014] The bearing is a tapered thrust bearing.
[0015] The ice blade positioning structure of the ice maker evaporator of this utility model has a bearing installed in the inner barrel. The ice blade is rotatably connected to the bearing, and the ice blade presses downward against the bearing, thereby effectively fixing the ice blade. This makes it less likely for the ice blade to deform or move downward during operation, thereby reducing the force on the gearbox assembly and preventing the ice blade from pressing down on the gearbox assembly and causing damage to the gearbox assembly, thus ensuring the normal operation of ice making. Attached Figure Description
[0016] Figure 1 This is a partial structural cross-sectional view of the evaporator in one embodiment of the present invention.
[0017] Figure 2 This is a partial structural diagram of the evaporator in one embodiment of the present invention.
[0018] Figure 3 This is an exploded view of part of the structure of the evaporator in one embodiment of the present invention.
[0019] Figure 4 This is a schematic diagram of the overall structure of the inner bucket in one embodiment of the present invention.
[0020] Figure 5 This is a schematic diagram of the overall structure of the evaporator in one embodiment of the present invention. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] See Figures 1-5 The ice blade positioning structure of the evaporator of this ice maker includes an ice blade 2 that is rotatably installed inside the inner barrel 1, and a bearing 3 that is fixed inside the inner barrel 1. The ice blade 2 is rotatably connected to the bearing 3, and the ice blade 2 rests downward against the bearing 3. The evaporator is a chewing ice evaporator and is used in refrigerators.
[0023] The ice skate 2 is provided with a limiting step 4, and the top of the bearing 3 is provided with a limiting part 5. The ice skate 2 is pressed against the limiting part 5 of the bearing 3 through the limiting step 4, thereby preventing the ice skate 2 from moving downward when it is working.
[0024] The lower part of the ice skate 2 is provided with a connecting section 6, and the bearing 3 is provided with a rotating hole 7. The connecting section 6 is rotatably connected to the rotating hole 7 to achieve the front-back and left-right positioning of the ice skate 2.
[0025] The top of the inner barrel 1 is provided with an ice squeezing head 8, and the top of the ice blade 2 is provided with a limiting fitting part 9. The ice blade 2 is positioned on the ice squeezing head 8 through the limiting fitting part 9. The ice squeezing head 8 is provided with a number of ice outlet holes 10 in a ring. When the ice blade 2 rotates, it scrapes the ice block in the inner barrel 1, and the ice blade 2 pushes the ice block to squeeze the ice squeezing head 8, so that the ice block is squeezed out from the ice outlet holes 10 of the ice squeezing head 8.
[0026] The bottom of the inner tub 1 is provided with a base 11, and a positioning groove 12 is provided on the base 11. The bearing 3 is positioned and installed on the positioning groove 12, thereby positioning the bearing 3 in the inner tub 1 in all directions.
[0027] The bottom of the inner tub 1 is provided with a first fixing hole 13, and the base 11 is provided with a second fixing hole 14. The fastener 15 (screw) passes through the first fixing hole 13 and is fastened to the second fixing hole 14 so that the base 11 is fixed on the inner tub 1, thereby fixing the bearing 3.
[0028] The bottom of the positioning groove 12 is provided with a positioning surface 21. The bearing 3 is positioned vertically between the limiting step 4 and the positioning surface 21, thereby positioning the bearing 3 vertically inside the inner barrel 1.
[0029] The upper part of the ice skate 2 is provided with an extrusion section 16, the diameter of which is larger than the diameter of the connecting section 6, so that a limiting step 4 is formed between the extrusion section 16 and the connecting section 6.
[0030] The extrusion section 16 is equipped with a spiral blade 17 for pushing ice blocks to the extrusion head 8. When the ice blade 2 rotates, the spiral blade 17 scrapes the ice blocks in the inner barrel 1.
[0031] Bearing 3 is a tapered thrust bearing, which can withstand heavy axial loads, thus effectively preventing the ice skate 2 from moving downwards during operation.
[0032] The outer tub 18 is fitted onto the outside of the inner tub 1.
[0033] The evaporator includes a motor 19 and a gearbox assembly 20. The motor 19 drives the input end of the gearbox assembly 20, and the output end of the gearbox assembly 20 is connected to the connecting section 6 of the ice skate 2. The motor 19 drives the ice skate 2 to rotate through the gearbox assembly 20.
[0034] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An ice blade positioning structure for an ice maker evaporator, comprising an ice blade (2) rotatably disposed within an inner barrel (1), characterized in that: It also includes a bearing (3) fixed inside the inner barrel (1), the ice skate (2) is rotatably connected to the bearing (3), and the ice skate (2) presses downward against the bearing (3).
2. The ice blade positioning structure of the ice maker evaporator according to claim 1, characterized in that: The ice skate (2) is provided with a limiting step (4), and the bearing (3) is provided with a limiting part (5). The ice skate (2) presses down against the limiting part (5) of the bearing (3) through the limiting step (4).
3. The ice blade positioning structure of the ice maker evaporator according to claim 2, characterized in that: The ice skate (2) is provided with a connecting section (6), and the bearing (3) is provided with a rotating hole (7). The connecting section (6) is rotatably connected to the rotating hole (7).
4. The ice blade positioning structure of the ice maker evaporator according to claim 3, characterized in that: The inner barrel (1) is provided with an ice squeezing head (8) at the top, and the ice blade (2) is provided with a limiting fitting part (9) at the top. The ice blade (2) is positioned on the ice squeezing head (8) at the upper limit through the limiting fitting part (9). The ice squeezing head (8) is provided with an ice outlet hole (10).
5. The ice blade positioning structure of the ice maker evaporator according to claim 3, characterized in that: The bottom of the inner tub (1) is provided with a base (11), and a positioning groove (12) is provided on the base (11). The bearing (3) is positioned and installed on the positioning groove (12).
6. The ice blade positioning structure of the ice maker evaporator according to claim 5, characterized in that: The inner tub (1) is provided with a first fixing hole (13), and the base (11) is provided with a second fixing hole (14). The fastener (15) passes through the first fixing hole (13) and is then fastened to the second fixing hole (14) so that the base (11) is fixed on the inner tub (1).
7. The ice blade positioning structure of the ice maker evaporator according to claim 5, characterized in that: The bottom of the positioning groove (12) is provided with a positioning surface (21), and the upper and lower limits of the bearing (3) are between the limiting step (4) and the positioning surface (21).
8. The ice blade positioning structure of the ice maker evaporator according to claim 7, characterized in that: The ice skate (2) is provided with an extrusion section (16), the diameter of which is larger than the diameter of the connecting section (6) so that a limiting step (4) is formed between the extrusion section (16) and the connecting section (6).
9. The ice blade positioning structure of the ice maker evaporator according to claim 7, characterized in that: The extrusion section (16) is provided with a spiral blade (17) for pushing ice blocks to the extrusion head (8).
10. The ice blade positioning structure of the ice maker evaporator according to any one of claims 1-9, characterized in that: The bearing (3) is a tapered thrust bearing.