Ice making mechanism of ice maker

Abstract

The utility model relates to the technical field of ice-making machines, and discloses an ice-making mechanism of an ice-making machine, which comprises a refrigerating system consisting of a compressor, an evaporator, a condenser, an expansion valve and a pipe fitting, the evaporator of the refrigerating system is vertically arranged, a vertical ice tray is arranged on the front side of the evaporator, the evaporator clings to the back side of the ice tray, and a back box is arranged on the rear side of the ice tray. The back box is fixed to the corresponding position in the ice maker through bolts, the evaporator is installed in the back box, the front side of the back box is open, the four edges of the rear side of the ice cube tray abut against the four edges of the front side of the back box to form contact sealing, and two pipe openings of the evaporator downwards stretch out of the back box and are fixed and communicated with the circulating pipes at the corresponding positions. According to the ice-making mechanism, the back box is arranged for accommodating the evaporator, so that when the evaporator is cooled, the ice tray is subjected to heat absorption and cooling to the maximum extent, the absorption ratio of the evaporator to heat of the surrounding environment is reduced, and the effective heat absorption utilization rate of the evaporator is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ice making machines, in particular to an ice making mechanism of an ice making machine. Background Art

[0002] An ice maker is a refrigeration mechanical device that generates ice by cooling water through an evaporator with the refrigerant of the refrigeration system. It uses a refrigeration system and water as a carrier to make ice after passing through an ice tray under power-on conditions. The working process of an ice maker usually includes the following steps: First, the compressor inhales the heat absorbed by the refrigerant and the evaporator, and then compresses the refrigerant to increase its temperature and pressure. Next, the high-temperature and high-pressure refrigerant flows into the condenser, releasing the heat previously absorbed in the evaporator, thereby cooling and turning into a high-pressure liquid. Finally, the high-pressure liquid refrigerant enters the evaporator through the expansion valve, and its pressure suddenly drops, causing the refrigerant to evaporate rapidly, thereby absorbing heat from the evaporator position, and using the principle of heat absorption by the evaporator to cool the ice tray, thereby causing the water on the surface to freeze into ice cubes.

[0003] The evaporator of the existing ice maker is mostly open except for the contact position with the ice tray. When the evaporator absorbs heat, it not only absorbs heat and cools the ice tray, but also absorbs heat from the surrounding environment, which leads to a decrease in the heat absorption utilization rate of the evaporator. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an ice-making mechanism for an ice-making machine to solve the problems in the background technology.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides the following technical solutions:

[0008] The ice-making mechanism of the ice maker includes a refrigeration system consisting of a compressor, an evaporator, a condenser, an expansion valve and pipe fittings. The evaporator of the refrigeration system is vertically arranged, and a vertical ice grid tray is provided on the front side of the evaporator. The evaporator is close to the back of the ice grid tray, and a back box is provided on the back side of the ice grid tray. The back box is fixed to the corresponding position in the ice maker by bolts. The evaporator is installed in the back box, and the front side of the back box is open. The four rear sides of the ice grid tray are abutted against the four front sides of the back box to form a contact seal. The two pipe openings of the evaporator extend downward from the back box and are fixed and connected to the circulation pipes at the corresponding positions.

[0009] Preferably, a heat insulation board is filled between the evaporator and the back surface of the back box.

[0010] Preferably, a plurality of fixing seats are installed on the bottom surface of the ice cube tray, and mutually fixed rotating shafts are passed through the plurality of fixing seats. A shaft seat is provided at both ends of the rotating shaft, and the bearing sets at both ends of the rotating shaft are installed on the shaft seat at the corresponding position to be fixed. A motor is provided at one end of the rotating shaft, and the shaft of the motor is fixed to the rotating shaft through a pin key matching transmission.

[0011] Preferably, the maximum angle at which the ice tray can flip forward is 12°.

[0012] Preferably, a plurality of baffles are provided on the front side of the ice cube tray corresponding to the flipping end position, the front side surface of the baffle plate abuts against the top edge of the ice cube tray to form a limit blockage, the upper positions of the front side surfaces of the plurality of baffles are fixed by a fixing rod, end seats are installed at both ends of the fixing rod, and the end seat bolts are fixed to corresponding positions in the ice maker.

[0013] Preferably, a top seat is provided above the rear side of the baffle, a sleeve shaft is provided on the bottom surface of the top seat, a shaft seat 2 is installed on the bottom surface of the top seat, a sleeve shaft bearing set is installed on the shaft seat 2, a fixed sleeve is installed at one end of the sleeve shaft, a spring is installed on the fixed sleeve, a solid ball is installed at the bottom end of the spring, the solid ball contacts the rear side surface of the baffle, an elliptical protrusion is provided on the travel path on the rear side of the solid ball, a supporting angle plate is installed on the top surface of the elliptical protrusion, and the supporting angle plate is fixed to the bottom surface of the top seat.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides an ice-making mechanism for an ice-making machine, which has the following beneficial effects:

[0016] 1. The ice-making mechanism is provided with a back box to accommodate the evaporator, so that when the evaporator is cooled, the heat absorption and cooling of the ice tray is maximized, the absorption ratio of the evaporator to the surrounding environment is reduced, and the effective heat absorption utilization rate of the evaporator is improved.

[0017] 2. The ice-making mechanism further isolates the evaporator from the surrounding heat by providing a heat insulation plate, thereby further improving the heat absorption and cooling effect of the evaporator on the ice tray.

[0018] 3. The ice-making mechanism drives the rotating shaft to rotate through the motor, and then drives the ice tray to flip forward at a certain angle, so that when removing ice, the ice cubes and the surface of the ice tray are at an oblique angle, which facilitates the ice cubes to slide off and remove ice.

[0019] 4. The ice-making mechanism uses a solid ball to impact the baffle, and then uses the impact force to vibrate the ice tray in the deicing process, so as to accelerate the sliding of ice cubes and increase the deicing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the appearance diagram of the utility model;

[0021] Figure 2 It is a bottom view of the utility model;

[0022] Figure 3 This is a diagram of the front flip state of the ice tray in the utility model;

[0023] Figure 4 It is a schematic diagram of the arrangement of the solid ball in the utility model.

[0024] In the figure: 1. Refrigeration system; 2. Ice cube tray; 3. Back box; 4. Circulation pipe; 5. Rotating shaft; 6. Fixed seat; 7. Shaft seat one; 8. Motor one; 9. Baffle; 10. Fixed rod; 11. End seat; 12. Top seat; 13. Support angle plate; 14. Elliptical protrusion; 15. Sleeve shaft; 16. Fixed sleeve; 17. Spring; 18. Solid ball; 19. Shaft seat two; 20. Motor two. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] See also Figure 1-4 The ice-making mechanism of the ice-making machine includes a refrigeration system 1. The refrigeration system 1 is an existing refrigeration system of the ice-making machine, including a compressor, an evaporator, a condenser, an expansion valve and pipe fittings. It is a prior art and will not be described in detail. The evaporator is vertically arranged, and a vertical ice grid tray 2 is arranged on the front side of the evaporator. The evaporator is close to the back of the ice grid tray 2, and a back box 3 is arranged on the back side of the ice grid tray 2. The evaporator is installed in the back box 3, and the back box 3 is fixed to the corresponding position in the ice-making machine by bolts. An insulation board (not shown) is filled between the evaporator and the back of the back box 3. The front side of the back box 3 is open, and the four rear sides of the ice grid tray 2 are against the four front sides of the back box 3 to form a contact seal. The two pipe openings of the evaporator extend downward from the back box 3 and are welded and fixed to the circulation pipe 4 at the corresponding position and are connected.

[0027] During refrigeration, the evaporator absorbs heat and cools down. Due to the setting of the back box 3 and the insulation board, the evaporator is limited from absorbing ambient heat from the top, bottom, left, right and back sides, so that it mainly absorbs heat from the ice tray 2 by conduction, increasing the heat absorption utilization rate of the refrigerant in the evaporator.

[0028] In this embodiment, a plurality of fixing seats 6 are welded and installed on the bottom surface of the ice cube tray 2, and a rotating shaft 5 which is welded and fixed to each other passes through the plurality of fixing seats 6. A shaft seat 7 is provided at both ends of the rotating shaft 5, and the bearing sets at both ends of the rotating shaft 5 are installed on the shaft seat 7 at the corresponding positions to be fixed. A motor 8 is provided at one end of the rotating shaft 5, and the shaft of the motor 8 is fixed to the rotating shaft 5 through a pin-key transmission.

[0029] When defrosting after ice making is completed, in addition to the existing reflux refrigerant, which allows the high-temperature refrigerant to flow into the evaporator to heat the ice grid tray 2, so that the contact position between the ice cubes and the ice grid tray 2 melts for defrosting, the refrigerant refluxes for a certain period of time, the preset timing is 1.5 minutes, and the defrosting heating time of a general beverage ice maker is about 3 minutes. After the contact surface between the ice cubes and the ice grid tray 2 melts, the motor 8 works to drive the rotating shaft 5 to rotate, and utilizes the fixed relationship between the fixing seat 6 and the ice grid tray 2 to drive the ice grid tray 2 to flip forward by a certain angle, the preset angle being 12°, so that the ice cubes in the ice grid tray 2 are tilted, and the contact surface between the ice cubes and the ice grid tray 2 melts, so that the ice cubes are easier to escape from the ice grid tray 2.

[0030] In this embodiment, a plurality of baffles 9 are provided at the front side of the ice cube tray 2 corresponding to the flipping end position, and the front side of the baffle 9 abuts against the top edge of the ice cube tray 2 to form a limit stop. The upper positions of the front side of the plurality of baffles 9 are welded and fixed by fixing rods 10, and end seats 11 are welded and installed at both ends of the fixing rods 10. The end seats 11 are bolted to the corresponding positions in the ice maker, and a top seat 12 is provided on the upper rear side of the baffle 9, and a sleeve shaft 15 is provided on the bottom surface of the top seat 12, and a shaft seat is bolted to the bottom surface of the top seat 12 19, the bearing set of the sleeve shaft 15 is installed on the shaft seat 19, a fixing sleeve 16 is welded and installed on one end of the sleeve shaft 15, a spring 17 is welded and installed on the fixing sleeve 16, a solid ball 18 is welded and installed on the bottom end of the spring 17 away from the fixing sleeve 16, the solid ball 18 reaches the rear side of the baffle 9, an elliptical protrusion 14 is provided on the travel path on the rear side of the solid ball 18, a supporting angle plate 13 is welded and installed on the top surface of the elliptical protrusion 14, and the supporting angle plate 13 is fixed to the bottom surface of the top seat 12 with bolts.

[0031] After the motor 1 8 works to drive the ice cube tray 2 to flip, the front top edge of the ice cube tray 2 abuts against the baffle 9 to limit its maximum tilt angle. At the same time, the motor 20 works, first rotating 90° clockwise to drive the solid ball 18 to a position close to the supporting angle plate 13, and then rotating 90° counterclockwise. When the solid ball 18 passes over the elliptical protrusion 14, it is blocked by it, and the spring 17 is deformed. When the solid ball 18 passes over the elliptical protrusion 14, the spring 17 recovers its deformation, driving the solid ball 18 to hit the rear side of the baffle 9, generating an impact force, which is then transmitted through the baffle 9 to cause the ice cube tray 2 abutting against the baffle 9 to vibrate, and the vibration is used to accelerate the escape of ice cubes in the ice cube tray 2.

Claims

1. An ice-making mechanism of an ice-making machine, comprising a refrigeration system (1) consisting of a compressor, an evaporator, a condenser, an expansion valve and pipe fittings, characterized in that: The evaporator of the refrigeration system (1) is arranged vertically, a vertical ice tray (2) is arranged on the front side of the evaporator, the evaporator is closely attached to the back side of the ice tray (2), a back box (3) is arranged on the back side of the ice tray (2), the back box (3) is fixed to a corresponding position in the ice maker by bolts, the evaporator is installed in the back box (3), the front side of the back box (3) is open, the four rear sides of the ice tray (2) and the four front sides of the back box (3) are abutted to form a contact seal, and two pipe openings of the evaporator extend downward from the back box (3) to be fixed and communicated with a circulation pipe (4) at a corresponding position.

2. The ice-making mechanism of the ice-making machine according to claim 1, characterized in that: A heat insulation board is filled between the evaporator and the inner back surface of the back box (3).

3. The ice-making mechanism of the ice-making machine according to claim 1, characterized in that: The bottom surface of the ice cube tray (2) is provided with a plurality of fixing seats (6), and mutually fixed rotating shafts (5) are passed through the plurality of fixing seats (6). The rotating shaft (5) is provided with a shaft seat (7) at both ends, and the bearing sleeves at both ends of the rotating shaft (5) are installed on the shaft seat (7) at corresponding positions to form a fixed position. A motor (8) is provided at one end of the rotating shaft (5), and the shaft of the motor (8) is fixed to the rotating shaft (5) through a pin-key matching transmission.

4. The ice-making mechanism of the ice-making machine according to claim 3, characterized in that: The maximum angle at which the ice tray (2) flips forward is 12°.

5. The ice-making mechanism of the ice-making machine according to claim 4, characterized in that: A plurality of baffles (9) are provided at the front side of the ice cube tray (2) at positions corresponding to the end points of the flipping, and the front side surfaces of the baffles (9) abut against the top edge of the ice cube tray (2) to form a limit stop. The upper positions of the front side surfaces of the plurality of baffles (9) are fixed by fixing rods (10), and end seats (11) are installed at both ends of the fixing rods (10), and the end seats (11) are bolted to corresponding positions in the ice maker.

6. The ice-making mechanism of the ice-making machine according to claim 5, characterized in that: A top seat (12) is provided above the rear side of the baffle (9), a sleeve shaft (15) is provided on the bottom surface of the top seat (12), a shaft seat 2 (19) is installed on the bottom surface of the top seat (12), a bearing sleeve of the sleeve shaft (15) is installed on the shaft seat 2 (19), a fixing sleeve (16) is installed on one end of the sleeve shaft (15), a spring (17) is installed on the fixing sleeve (16), a solid ball (18) is installed on the bottom end of the spring (17), the solid ball (18) abuts against the rear side surface of the baffle (9), an elliptical protrusion (14) is provided on the travel path of the rear side of the solid ball (18), a supporting angle plate (13) is installed on the top surface of the elliptical protrusion (14), and the supporting angle plate (13) is fixed to the bottom surface of the top seat (12).

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