Ice unloading mechanical structure of ice maker

Abstract

According to the ice unloading mechanical structure of the ice maker, the notch I and the notch II on the cam are linked with the contact switch, an original time controller is replaced to control the servo motor, the servo motor can be braked as long as the notch I and the notch II are connected with the contact switch in a clamped mode no matter the motor rotates forwards or turns over, and the ice unloading mechanical structure of the ice maker is achieved. The fully closed state and the fully opened state of the opening and closing mechanism are accurately fed back to the motor, so that the conditions of insufficient deicing and subsequent equipment damage caused by the fact that the opening and closing mechanism does not reach a set position are effectively prevented, and the service life is prolonged; original end installation of the servo motor is changed into fixed frame internal installation, and the product installation and maintenance structure is optimized.

Description

Technical Field

[0001] The utility model relates to the field of ice making machines, in particular to an ice-removing mechanical structure 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 a refrigeration system. It mainly includes an ice maker, a sandwich tube, an evaporator, a water storage tank, a water pump, a water supply valve, and a servo motor. Its working principle is to introduce water into the water storage tank through the water supply valve, and then use a water pump to pump water from the water storage tank through the evaporator and evenly spray it into the ice maker. Refrigerant flows through the sandwich tube above the ice maker. After flowing through the wall of the ice maker, the water is cooled to the freezing point to form ice cubes. When the ice cubes reach the required thickness, the hot air discharged from the evaporator is reintroduced into the sandwich tube to replace the refrigerant. The servo motor drives the water storage tank and the evaporator to rotate, and the ice cubes fall down due to their own gravity to complete demolding. The opening and closing of the existing water tank and evaporator are controlled by a time controller to control the operation of the servo motor. In actual use, some ice cubes will stick together between the evaporator and the ice maker, resulting in the water tank and evaporator not rotating to the set position within the set time. The time controller controls the servo motor to reverse, and the water tank and evaporator close again, resulting in insufficient ice removal. After long-term use, the equipment will be damaged and its service life will be affected. The servo motor is installed at the end, and the overall installation and maintenance of the ice maker are inconvenient. Utility Model Content

[0003] In view of the defects of the existing ice-making machine deicing device, the technical problem to be solved by the utility model is to provide an ice-making machine deicing mechanical structure with accurate opening and closing state, sufficient deicing and extended service life of the equipment.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, the utility model is realized by the following technical measures: an ice-removing mechanical structure of an ice-making machine, including a power mechanism, a stroke control mechanism, an opening and closing mechanism, an ice-making mechanism, a fixing frame, and a circuit board;

[0005] The power mechanism is arranged on a fixed frame and includes a servo motor and a transmission shaft;

[0006] The ice-making mechanism includes an ice maker, a sandwich pipe, a defrost valve, and a hot air pipe. The ice maker is arranged below the fixed frame, an induction probe is arranged outside the ice maker, and the induction probe is connected to the circuit board through a probe line. A sandwich pipe is arranged between the ice maker and the fixed frame, and the hot air pipe is inserted into the sandwich pipe. The defrost valve controls the connection and disconnection of the hot air pipe and the external hot air pipe.

[0007] The opening and closing mechanism includes an evaporator, a water storage tank and a water pump. The evaporator is fixed on the top of the water storage tank. A water spray hole and a water leakage hole are opened on the top of the evaporator. The water pump connects the water storage tank and the evaporator through a water pipe.

[0008] The power mechanism is connected to one end of the opening and closing mechanism through a stroke control mechanism, and the other end of the opening and closing mechanism is hinged to the bottom of the fixed frame. The stroke control mechanism includes a cam, a rocker arm, and a spring. The cam is provided with a notch I and a notch II. The cam center and one end of the rocker arm are fixed on the transmission shaft. The other end of the rocker arm is hinged with a spring, and the other end of the spring is connected to the opening and closing mechanism. A contact switch is provided on the side of the fixed frame. The end of the switch rod of the contact switch is against the outer ring of the cam. When the end of the switch rod is engaged with the notch I and notch II on the cam, it corresponds to the two positions of the opening and closing mechanism being fully closed and fully opened.

[0009] Furthermore, a gear I is fixed on the servo motor, a gear II is fixed on the transmission shaft, and the gear I and the gear II are meshed to drive the transmission shaft to rotate.

[0010] Furthermore, there is one stroke control mechanism, which is arranged at one end of the transmission shaft.

[0011] Furthermore, there are two stroke control mechanisms, which are respectively arranged at two ends of the transmission shaft.

[0012] Compared with the prior art, the advantages of the utility model are: the ice-defrosting mechanical structure of the ice-making machine adopts the linkage between the notch I and notch II on the cam and the contact switch, replacing the original time controller to control the servo motor, no matter whether the motor rotates forward or reverse, as long as the notch I and notch II are engaged with the contact switch, the servo motor can be braked, and the fully closed and fully opened states of the opening and closing mechanism can be accurately fed back to the motor, effectively preventing the opening and closing mechanism from reaching the set position, resulting in insufficient ice defrosting, and subsequent equipment damage, thereby extending the service life; the servo motor is changed from the original end installation to the internal installation of the fixed frame, thereby optimizing the product installation and maintenance structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of an ice-removing mechanical structure of an ice-making machine according to the utility model;

[0015] Figure 2 It is a schematic diagram of the exploded structure of the ice-removing mechanical structure of an ice-making machine according to the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the opening and closing mechanism of the utility model;

[0017] Figure 4 This is a schematic diagram of the fully closed state of the opening and closing mechanism of the utility model.

[0018] Explanation of the accompanying drawings: 1. Power mechanism; 101. Servo motor; 102. Gear I; 103. Gear II; 104. Transmission shaft; 2. Stroke control mechanism; 201. Cam; 202. Notch I; 203. Notch II; 204. Rocker arm; 205. Spring; 3. Opening and closing mechanism; 301. Evaporator; 302. Water storage tank; 303. Water pump; 304. Water spray hole; 305. Water leakage hole; 306. Water pipe; 4. Ice making mechanism; 401. Ice maker; 402. Sandwich pipe; 403. Defrost valve; 404. Hot air pipe; 405. Induction probe; 5. Contact switch; 501. Switch rod; 6. Fixing frame; 7. Circuit board. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0020] In the description of the present utility innovation, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "bottom", "top", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility innovation and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility innovation.

[0021] Please refer to Figure 1-4The present embodiment provides an ice-removing mechanical structure of an ice-making machine, comprising a power mechanism 1, a stroke control mechanism 2, an opening and closing mechanism 3, an ice-making mechanism 4, a contact switch 5, a fixing frame 6, and a circuit board 7. The power mechanism 1 is arranged on the fixing frame 6. The power mechanism 1 comprises a servo motor 101, a gear I102, a gear II103, and a transmission shaft 104. The servo motor 101 is fixed with a gear I102, and the middle of the transmission shaft 104 is fixed with a gear II103. The gear I102 and the gear II103 are meshed to drive the transmission shaft 104 to rotate; The ice-making mechanism 4 includes an ice-maker 401, a sandwich wall pipe 402, a defrost valve 403, and a hot air pipe 404. The ice-maker 401 is arranged below the fixing frame 6. A sensing probe 405 is arranged outside the ice-maker 401. The sensing probe 405 is connected to the circuit board 7 through a probe line. A sandwich wall pipe 402 is arranged between the ice-maker 401 and the fixing frame 6. The hot air pipe 404 is inserted into the sandwich wall pipe 402. The defrost valve 403 controls the hot air pipe 404 to be on and off with the external hot air pipe 404. The stroke control mechanism 2 includes a cam 201, a rocker arm 204, and a spring 205, a notch I202 and a notch II203 are arranged on the outer ring of the cam 201, the center of the cam 201 and one end of the rocker arm 204 are fixed on the transmission shaft 104, the other end of the rocker arm 204 is hinged with a spring 205, and the other end of the spring 205 is connected to the opening and closing mechanism 3, and the above-mentioned stroke control mechanism 2 is preferably two, which are respectively arranged at the two ends of the transmission shaft 104; a contact switch 5 is arranged on the side of the fixing frame 6, and the end of the switch rod 501 of the contact switch 5 is against the outer ring of the cam 201, and the end of the switch rod 501 is against the notch I203 of the cam 201. 2 and notch II 203 are engaged, which just correspond to the two positions of the opening and closing mechanism 3 being fully closed and fully opened; the stroke control mechanism 2 hinges the power mechanism 1 with one end of the opening and closing mechanism 3, and the other end of the opening and closing mechanism 3 is hinged with the bottom of the fixing frame 6. The opening and closing mechanism 3 includes an evaporator 301, a water storage tank 302 and a water pump 303. The evaporator 301 is fixed on the top of the water storage tank 302. A water spray hole 304 and a water leakage hole 305 are opened on the top of the evaporator 301. The water pump 303 connects the water storage tank 302 and the evaporator 301 through a water pipe 306.

[0022] The present embodiment provides an ice-removing mechanical structure of an ice-making machine. When making ice, the defrost valve 403 is closed, the sandwich tube 402 is filled with refrigerant, the servo motor 101 rotates, and the servo motor 101 drives the transmission shaft 104 to drive the cam 201 and the rocker arm 204 to rotate through gear transmission. The rocker arm 204 pulls the spring 205 to turn the opening and closing mechanism 3 to a fully closed position. The end of the switch rod 501 of the contact switch 5 is stuck in the notch I202 of the cam 201, the contact switch 5 is disconnected, the servo motor 101 stops, the opening and closing mechanism 3 is completely closed, and water is poured into the water storage tank 302. After the water is full, the water pump 303 is turned on. The water pump 303 evenly sprays water from the water storage tank 302 through the evaporator 301 to the ice maker 4 through the water spray hole 304. 01, ice cubes are formed, and excess water returns to the evaporator 301 again through the leaking hole 305; when the ice cubes reach the required thickness, the sensing probe 405 transmits a signal to the circuit board 7, and the circuit board 7 controls the defrost valve 403 to open, and introduces the external hot air into the hot air pipe 404 inserted in the sandwich wall tube 402, and at the same time controls the servo motor 101 to rotate again, and the servo motor 101 drives the transmission shaft 104 to drive the cam 201 and the rocker arm 204 to rotate through the gear transmission. When the end of the switch rod 501 of the contact switch 5 is stuck in the notch II 203 of the cam 201, the contact switch 5 is disconnected, the servo motor 101 stops, and the opening and closing mechanism 3 turns to the fully open position. The ice cubes in the ice maker 401 fall down due to their own gravity to complete demoulding.

[0023] The present embodiment provides an ice-defrosting mechanical structure for an ice-making machine, which adopts the linkage between the notch I202 and notch II203 on the cam 201 and the contact switch 5, replacing the original time controller to control the servo motor 101. Regardless of whether the motor rotates forward or reversely, as long as the notch I202 and notch II203 are engaged with the contact switch 5, the servo motor 101 can be braked, and the fully closed and fully opened states of the opening and closing mechanism 3 can be accurately fed back to the motor, effectively preventing the opening and closing mechanism 3 from reaching the set position, resulting in insufficient ice defrosting, and subsequent equipment damage, thereby extending the service life; the servo motor 101 is changed from the original end installation to the internal installation of the fixed frame, thereby optimizing the product installation and maintenance structure.

[0024] The above description is only the preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An ice-removing mechanical structure of an ice-making machine, comprising a power mechanism, an opening and closing mechanism, an ice-making mechanism, a fixing frame, and a circuit board. The power mechanism is arranged on the fixing frame and comprises a servo motor and a transmission shaft, and is characterized in that: It also includes a stroke control mechanism, the power mechanism is connected to one end of the opening and closing mechanism through the stroke control mechanism, and the other end of the opening and closing mechanism is hinged to the bottom of the fixed frame; The ice-making mechanism includes an ice maker, a sandwich pipe, a defrost valve, and a hot air pipe. The ice maker is arranged below the fixed frame, an induction probe is arranged outside the ice maker, and the induction probe is connected to the circuit board through a probe line. A sandwich pipe is arranged between the ice maker and the fixed frame, and the hot air pipe is inserted into the sandwich pipe. The defrost valve controls the connection and disconnection of the hot air pipe and the external hot air pipe. The opening and closing mechanism includes an evaporator, a water storage tank and a water pump. The evaporator is fixed on the top of the water storage tank. A water spray hole and a water leakage hole are opened on the top of the evaporator. The water pump connects the water storage tank and the evaporator through a water pipe. The travel control mechanism includes a cam, a rocker arm, and a spring. The cam is provided with a notch I and a notch II. The cam center and one end of the rocker arm are fixed on the transmission shaft. The other end of the rocker arm is hinged with a spring. The other end of the spring is connected to the opening and closing mechanism. A contact switch is provided on the side of the fixed frame. The end of the switch rod of the contact switch is against the outer ring of the cam. When the end of the switch rod is engaged with the notch I and notch II on the cam, it corresponds to the two positions of the opening and closing mechanism being fully closed and fully opened.

2. The ice-removing mechanical structure of the ice-making machine according to claim 1, characterized in that: The servo motor is fixed with a gear I, the transmission shaft is fixed with a gear II, and the gear I and the gear II are meshed to drive the transmission shaft to rotate.

3. The ice-removing mechanical structure of the ice-making machine according to claim 1, characterized in that: The number of the stroke control mechanism is one.

4. The ice-removing mechanical structure of the ice-making machine according to claim 3, characterized in that: The stroke control mechanism is arranged at one end of the transmission shaft.

5. The ice-removing mechanical structure of the ice-making machine according to claim 1, characterized in that: The number of the stroke control mechanisms is two.

6. The ice-removing mechanical structure of the ice-making machine according to claim 5, characterized in that: The stroke control mechanisms are respectively arranged at two ends of the transmission shaft.

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