Inner push rod type forced deicing ice maker
The internal push rod type forced de-icing ice maker automatically ejects ice blocks through an internal push rod and threaded rod structure, solving the problems of easy damage to the compressor and evaporator desoldering in existing ice makers, and achieving efficient and non-destructive de-icing and improved ice block quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-30
- Publication Date
- 2026-04-24
AI Technical Summary
Existing commercial continuous ice makers suffer from problems such as compressor damage during ice removal, evaporator detachment during ice removal, and ice blocks needing to melt before they can be removed, affecting ice quality.
An internal push rod type forced de-icing ice maker is adopted. By setting an internal push rod and a threaded rod on the back of the ice mold, the drive motor drives the internal push rod to push the de-icing push block, pushing the ice blocks out row by row. Combined with temperature sensor and PLC controller, the de-icing process is automatically controlled.
This technology allows ice to detach without the need for heat to melt it, reducing damage to the compressor, extending machine life, and improving operating efficiency and ice quality.
Smart Images

Figure CN121916602A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ice maker technology, specifically to an internal push rod type forced ice removal ice maker. Background Technology
[0002] An ice maker is a refrigeration machine that uses a refrigeration system to cool water through an evaporator to produce ice. It employs a refrigeration system with water as the carrier, and produces ice by passing the water through a device when powered on. Depending on the evaporator's principle and production method, the shape of the ice produced varies. Ice makers are generally classified by ice shape, such as granular ice machines, flake ice machines, plate ice machines, tube ice machines, and shell ice machines.
[0003] Ice-making principle: Water automatically enters a storage tank through the inlet valve, and then is pumped to a distribution pipe. The distribution pipe evenly distributes the water to the evaporator, which has been cooled by the low-temperature liquid refrigerant. The water is cooled to its freezing point. When the ice reaches the required thickness, it enters the de-icing state. The high-pressure hot gas discharged from the compressor is diverted to the evaporator through a reversing valve, replacing the low-temperature liquid refrigerant. This forms a water film between the ice and the evaporator. This water film causes the ice to detach from the evaporator and fall freely into the ice storage tank below under gravity.
[0004] Currently, commercial continuous-flow ice makers typically use hot air generated by the compressor to transfer heat to the evaporator (ice mold) via a hot air valve during the ice removal process. This heat slightly melts the ice, which then detaches from the evaporator. The drawbacks of this type of machine are: 1. The compressor cannot operate for extended periods, potentially causing damage; 2. The evaporator (ice mold) is subjected to frequent temperature changes, which can lead to weld failure due to thermal expansion and contraction; 3. The ice must be melted before detaching, meaning it has already been heated and melted to some extent, affecting its usability. To address these issues, we offer an internal pusher-type forced ice removal ice maker. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides an internal pusher type forced de-icing ice maker, which solves the problems mentioned in the background section.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an internal push rod type forced de-icing ice maker, comprising an ice maker frame, an ice maker ice mold mounted on the ice maker frame, and a compressor refrigeration unit. The ice mold has an ice-making cavity inside. An outer sleeve is connected to the back of the ice mold. An inner push rod is movably sleeved inside the outer sleeve. The inner push rod is slidably installed inside the ice mold cavity. One end of the inner push rod near the ice mold extends into the ice mold cavity and is welded to a de-icing push block. A threaded rod is movably sleeved inside the outer sleeve, threadedly sleeved inside the inner push rod. A support side plate is connected to the end of the outer sleeve away from the ice mold. The end of the threaded rod away from the inner push rod extends to the outside of the support side plate and is fixedly fitted with a transmission wheel. A drive motor is connected to the side of the support side plate. A drive wheel is connected to the output shaft of the drive motor. A transmission belt connects the drive wheel and the transmission wheel.
[0007] Optionally, the ice mold of the ice maker is provided with a sealing cap at the open end, and a sealing block is connected to the side of the sealing cap near the ice mold of the ice maker. The sealing block matches the ice mold cavity, and the sealing cap is used to seal the ice mold of the ice maker so that water can be stored in the ice mold of the ice maker.
[0008] Optionally, an exhaust valve is connected to the outside of the sealing cover. The exhaust valve is connected to the ice-making mold cavity. A water pump is installed on the top of the ice mold of the ice maker. A water inlet is opened on the inner side of the sealing block. The water pump is connected to the water inlet through a pipe. By setting the exhaust valve, when water is injected into the ice-making mold cavity, the air in the ice-making mold cavity is discharged from the exhaust valve.
[0009] Optionally, a movable swing arm is connected to the top of the sealing cover, and a movable side arm is connected to the side of the movable swing arm. A support block is installed on the top of the ice mold of the ice maker. The movable side arm and the support block are movably fitted together. The support block is used to support the movable side arm so that the movable side arm can rotate around the support block.
[0010] Optionally, a telescopic cylinder is movably sleeved on the top of the ice mold of the ice maker, and a support rod is connected to the output shaft of the telescopic cylinder. The support rod is movably sleeved on the top of the movable swing arm. By setting the telescopic cylinder, the support rod can be rotated by pulling the telescopic cylinder to open the sealing cover.
[0011] Optionally, each of the ice-making mold cavities is equipped with an outer sleeve on its back. Each row of the outer sleeves is connected by a support side plate. The support side plates are arranged in rows from bottom to top. By setting multiple rows of support side plates, when removing ice, the inner push rod is pushed out from bottom to top in sequence, thereby pushing out the ice blocks row by row. This can prevent the ice blocks above from accumulating on the ice blocks below and prevent the ice blocks from being crushed.
[0012] Optionally, the outer sleeve has a guide groove inside, and the inner push rod is connected to a guide block outside. The guide groove is engaged with the inside of the guide block, and the guide groove limits the guide block, so that the inner push rod can move stably and prevent the inner push rod from rotating.
[0013] Optionally, a clamping wheel is movably sleeved on the outer side of the support side plate. The clamping wheel and the transmission wheel are alternately distributed. The clamping wheel presses against the outside of the transmission belt. By setting the clamping wheel, the transmission belt is pressed into an M-shaped structure, which can better clamp the transmission belt and the transmission wheel together.
[0014] Optionally, a temperature sensor is installed on the side of the ice mold of the ice maker, and a PLC controller is installed on the frame of the ice maker. The temperature sensor is electrically connected to the PLC controller, and the PLC controller is electrically connected to the water pump, the telescopic cylinder, and the drive motor. By setting the temperature sensor, the temperature of the ice mold of the ice maker is detected. When the water inside the ice mold cavity is frozen into ice, the temperature sensor sends a signal to the PLC controller, causing the PLC controller to control the telescopic cylinder to open the sealing cover.
[0015] This invention provides an internal pusher type forced de-icing ice maker, which has the following beneficial effects:
[0016] 1. This internal push rod type forced de-icing ice maker has an internal push rod installed on the back of the ice mold. After the ice is made, the drive motor is started to drive the threaded rod to rotate, which can push the de-icing push block outward and push the ice inside the ice mold cavity outward. It has the advantages of energy saving, reducing damage to the compressor, extending the service life of the ice mold, and producing high-quality ice.
[0017] 2. This internal push rod type forced de-icing ice maker, by setting multiple rows of support side plates, pushes the internal push rods out from bottom to top in sequence during de-icing, thereby pushing out the ice blocks row by row, which can prevent the ice blocks above from accumulating on the ice blocks below and prevent the ice blocks from being crushed.
[0018] 3. This internal push rod type forced de-icing ice maker uses a temperature sensor to detect the temperature of the ice mold. When the water inside the ice mold cavity freezes into ice, the temperature of the ice mold drops to the set temperature. At this time, the temperature sensor sends a signal to the PLC controller, which drives the drive motor to start. No manual control is required, thus improving operating efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the present invention;
[0020] Figure 2 This is a structural schematic diagram of the present invention from another angle;
[0021] Figure 3 This is a schematic diagram of the ice mold of the ice maker of the present invention;
[0022] Figure 4 This is a schematic diagram of the sealing cap of the present invention;
[0023] Figure 5 This is a schematic diagram of the outer sleeve of the present invention;
[0024] Figure 6 This is a schematic diagram of the drive motor of the present invention.
[0025] In the diagram: 1. Ice maker frame; 2. Ice mold; 3. Sealing cover; 4. Ice mold cavity; 5. Sealing block; 6. Exhaust valve; 7. Water pump; 8. Movable swing arm; 9. Movable side arm; 10. Support block; 11. Support connecting rod; 12. Telescopic cylinder; 13. Outer sleeve; 14. Inner push rod; 15. Ice removal push block; 16. Threaded rod; 17. Guide groove; 18. Guide block; 19. Support side plate; 20. Transmission wheel; 21. Drive motor; 22. Drive wheel; 23. Transmission belt; 24. Clamping wheel; 25. Temperature sensor; 26. PLC controller; 27. Water inlet. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0027] Please see Figures 1 to 4This invention provides a technical solution: an internal push rod type forced de-icing ice maker, including an ice maker frame 1, an ice maker ice mold 2 mounted on the ice maker frame 1, and a compressor refrigeration unit. The ice mold 2 has an ice-making cavity 4 inside. A sealing cover 3 is provided at the open end of the ice mold 2. A sealing block 5 is connected to the side of the sealing cover 3 near the ice mold 2, and the sealing block 5 matches the ice mold cavity 4. An exhaust valve 6 is connected to the outside of the sealing cover 3, and the exhaust valve 6 communicates with the ice mold cavity 4. By setting the exhaust valve 6, when water is injected into the ice mold cavity 4, the air in the ice mold cavity 4 is discharged from the exhaust valve 6. A water pump 7 is installed on the top of the ice mold 2. An opening is provided on the inner side of the sealing block 5. Water inlet 27, water pump 7 is connected to water inlet 27 through pipe, water pump 7 is connected to external water pipe by water pump 7, water pump 7 delivers clean water into the ice mold cavity 4, the top of the sealing cover 3 is connected to the movable swing arm 8, the side of the movable swing arm 8 is connected to the movable side arm 9, the top of the ice mold 2 of the ice maker is installed with support block 10, the movable side arm 9 and support block 10 are movably fitted together, the top of the ice mold 2 of the ice maker is movably fitted with telescopic cylinder 12, by setting telescopic cylinder 12, the support connecting rod 11 is pulled by telescopic cylinder 12 to rotate, the sealing cover 3 can be opened, the output shaft of telescopic cylinder 12 is connected to support connecting rod 11, the support connecting rod 11 is movably fitted to the top of movable swing arm 8.
[0028] Please see Figure 1 , Figure 5 The back of the ice mold 2 of the ice maker is connected to an outer sleeve 13. Each ice mold cavity 4 has an outer sleeve 13 installed on its back. Each row of outer sleeves 13 is connected by a support side plate 19. The support side plates 19 are arranged in rows from bottom to top. An inner push rod 14 is movably sleeved inside the outer sleeve 13. After the ice is formed, the inner push rod 14 pushes the ice removal push block 15 to move outward, pushing the ice inside the ice mold cavity 4 outward. The inner push rod 14 is slidably installed inside the ice mold cavity 4. The end of the inner push rod 14 near the ice mold 2 of the ice maker extends into the ice mold cavity 4 and is welded to the ice removal push block 15. A threaded rod 16 is movably sleeved inside the outer sleeve 13. 6. The drive motor 21 drives the threaded rod 16 to rotate, which enables the inner push rod 14 to move left and right along the threaded rod 16. The threaded rod 16 is threaded into the inside of the inner push rod 14. The outer sleeve 13 has a guide groove 17 inside. The inner push rod 14 is connected to a guide block 18. The guide groove 17 is engaged with the inside of the guide block 18. Through the cooperation of the guide groove 17 and the guide block 18, the guide groove 17 can hold the guide block 18, which enables the inner push rod 14 to move left and right stably and prevents the inner push rod 14 from rotating. The end of the outer sleeve 13 away from the ice mold 2 of the ice maker is connected to a support side plate 19. The end of the threaded rod 16 away from the inner push rod 14 extends to the outside of the support side plate 19 and is fixedly fitted with a transmission wheel 20.
[0029] Please see Figure 1 , Figure 6 A drive motor 21 is connected to the side of the support side plate 19. A drive wheel 22 is connected to the output shaft of the drive motor 21. A transmission belt 23 connects the drive wheel 22 and the transmission wheel 20. The drive motor 21 drives the drive wheel 22 to rotate, and then the drive wheel 22 drives the transmission wheel 20 to rotate via the transmission belt 23, causing the threaded rod 16 to rotate. A clamping wheel 24 is movably sleeved on the outer side of the support side plate 19. The clamping wheel 24 and the transmission wheel 20 are alternately distributed. The clamping wheel 24 presses against the outside of the transmission belt 23. By setting the clamping wheel 24, the transmission belt 23 is pressed into an M-shaped structure, which allows the transmission belt 23 to better engage with the transmission belt. The wheels 20 are clamped together. A temperature sensor 25 is installed on the side of the ice mold 2 of the ice maker. A PLC controller 26 is installed on the frame 1 of the ice maker. The temperature sensor 25 is electrically connected to the PLC controller 26. The PLC controller 26 is electrically connected to the water pump 7, the telescopic cylinder 12, and the drive motor 21. By setting the temperature sensor 25, the temperature of the ice mold 2 of the ice maker is detected. When the water inside the ice mold cavity 4 is frozen into ice, the temperature sensor 25 sends a signal to the PLC controller 26, causing the PLC controller 26 to control the telescopic cylinder 12 to open the sealing cover 3, and then control the inner push rod 14 to push out the ice.
[0030] In summary, when using this internal push rod type forced de-icing ice maker, the sealing cover 3 is pushed to the closed state by the telescopic cylinder 12, and then the water pump 7 delivers clean water into the ice mold cavity 4. At the same time, the gas inside the ice mold cavity 4 is discharged from the exhaust valve 6. When the ice mold cavity 4 is filled with water, the exhaust valve 6 is closed and the water pump 7 is turned off. Then the compressor refrigeration unit cools the ice mold 2 of the ice maker.
[0031] When the temperature of the ice mold 2 of the ice maker drops to the set value, the water inside the surface freezes into ice. At this time, the temperature sensor 25 transmits the signal to the PLC controller 26. Then, the PLC controller 26 controls the telescopic cylinder 12 to pull the sealing cover 3 to the open state. After that, the drive motor 21 drives the transmission belt 23 to rotate, which in turn drives the threaded rod 16 to rotate, thereby driving the inner push rod 14 to push the ice removal push block 15 to move outward and push the ice block out of the ice mold cavity 4.
[0032] The inner push rod 14 starts from bottom to top row by row. After the ice is completely pushed out, the telescopic cylinder 12 pushes the sealing cover 3 back to the closed state, and the next ice-making cycle begins.
[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An internal push rod type forced ice removal ice maker, comprising an ice maker frame (1), an ice mold (2) mounted on the ice maker frame (1), and a compressor refrigeration unit, characterized in that: The ice mold (2) of the ice maker has an ice-making cavity (4) inside. The back of the ice mold (2) is connected to an outer sleeve (13). An inner push rod (14) is movably sleeved inside the outer sleeve (13). The inner push rod (14) is slidably installed inside the ice-making cavity (4). The end of the inner push rod (14) near the ice mold (2) extends into the ice-making cavity (4) and is welded to the ice-removing push block (15). A threaded rod (16) is movably sleeved inside the outer sleeve (13). The threaded sleeve is inside the inner push rod (14). The outer sleeve (13) is connected to a support side plate (19) at one end away from the ice mold (2) of the ice maker. The threaded rod (16) extends to the outside of the support side plate (19) at one end away from the inner push rod (14) and is fixedly fitted with a transmission wheel (20). The side of the support side plate (19) is connected to a drive motor (21). The output shaft of the drive motor (21) is connected to a drive wheel (22). A transmission belt (23) is connected between the drive wheel (22) and the transmission wheel (20).
2. The internal pusher type forced de-icing ice maker according to claim 1, characterized in that: The ice mold (2) of the ice maker is provided with a sealing cover (3) at the open end. A sealing block (5) is connected to the side of the sealing cover (3) near the ice mold (2) of the ice maker. The sealing block (5) matches the ice mold cavity (4).
3. The internal pusher type forced de-icing ice maker according to claim 1, characterized in that: The sealing cover (3) is externally connected to an exhaust valve (6), which is connected to the ice mold cavity (4). A water pump (7) is installed on the top of the ice mold (2) of the ice maker. A water inlet (27) is opened on the inner side of the sealing block (5), and the water pump (7) is connected to the water inlet (27) through a pipe.
4. The internal pusher type forced de-icing ice maker according to claim 1, characterized in that: The top of the sealing cover (3) is connected to a movable swing arm (8), the side of the movable swing arm (8) is connected to a movable side arm (9), the top of the ice mold (2) of the ice maker is equipped with a support block (10), and the movable side arm (9) and the support block (10) are movably fitted together.
5. The internal pusher type forced de-icing ice maker according to claim 5, characterized in that: The top of the ice mold (2) of the ice maker is movably sleeved with a telescopic cylinder (12), and a support rod (11) is connected to the output shaft of the telescopic cylinder (12). The support rod (11) is movably sleeved to the top of the movable swing arm (8).
6. The internal pusher type forced de-icing ice maker according to claim 1, characterized in that: Each of the ice-making mold cavities (4) has an outer sleeve (13) installed on its back side. Each row of the outer sleeves (13) is connected by a supporting side plate (19), which are arranged in rows from bottom to top.
7. The internal pusher type forced de-icing ice maker according to claim 1, characterized in that: The outer sleeve (13) has a guide groove (17) inside, and the inner push rod (14) is connected to a guide block (18) on the outside. The guide groove (17) is engaged with the inside of the guide block (18).
8. The internal pusher type forced de-icing ice maker according to claim 1, characterized in that: The outer side of the support side plate (19) is movably fitted with a clamping wheel (24), and the clamping wheel (24) and the transmission wheel (20) are alternately distributed. The clamping wheel (24) is pressed against the outside of the transmission belt (23).
9. The internal pusher type forced de-icing ice maker according to claim 5, characterized in that: A temperature sensor (25) is installed on the side of the ice mold (2) of the ice maker, and a PLC controller (26) is installed on the frame (1) of the ice maker. The temperature sensor (25) is electrically connected to the PLC controller (26), and the PLC controller (26) is electrically connected to the water pump (7), the telescopic cylinder (12), and the drive motor (21).