A split evaporator with automatic leakage monitoring and flow guiding mechanism

Abstract

The present invention relates to the field of evaporator anti-leakage technology, and in particular to a split evaporator with an automatic leakage monitoring and guiding mechanism, comprising an assembly frame installed inside a refrigerator, a fixed guiding pipe and a fixed return pipe fixedly installed on the inner wall of the assembly frame, and a combined evaporation assembly matched with the fixed guiding pipe and the fixed return pipe installed inside the assembly frame. The split evaporator with an automatic leakage monitoring and guiding mechanism of the present invention can be freely increased or decreased according to different refrigerator specifications by adopting a split structural design, and the adaptability is greatly improved; by assembling an external detection frame with adjustable angles above and below the combined evaporation assembly inside the assembly frame, and using the external detection frame to install a humidity sensor control module, leakage in both gas and liquid states can be monitored, and leakage monitoring is more accurate; by adopting an external detection frame that can be electrically controlled and adjusted to flip, the detection range can be expanded.

Description

Technical Field

[0001] The invention relates to the technical field of evaporator leakage prevention, in particular to a split evaporator with a leakage point automatic monitoring and flow guiding mechanism. Background Art

[0002] Air-cooled refrigerators use forced circulation of cold air to control the temperature in the room, and use an evaporator for cooling. The evaporator is placed in the interlayer between the freezer and the refrigerator or at the rear of the cabinet. Due to long-term operation of the evaporator, it is easy to rust and leak due to excessive use. Once it leaks, it will directly affect the refrigeration effect of the refrigerator, pollute the surrounding environment, and increase the energy consumption of the refrigerator. Due to the installation position of the evaporator, it is difficult to detect the evaporator leakage in the early stage. The degree of intelligence is not high. Once the evaporator leaks, it needs to be replaced as a whole, resulting in high cost of later use. At the same time, different refrigerators need to be equipped with evaporators of different specifications, resulting in limited production adaptability and low versatility. Summary of the invention

[0003] The technical problem to be solved by the present invention is: currently, it is difficult to detect evaporator leakage in the early stage, the degree of intelligence is not high, and once the evaporator leaks, it needs to be replaced as a whole, resulting in high later use costs. At the same time, different refrigerators need to be adapted to evaporators of different specifications, resulting in limited production adaptability and low versatility.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a split evaporator with an automatic leakage monitoring and diversion mechanism, comprising an assembly frame installed inside the refrigerator, a fixed diversion pipe and a fixed return pipe are fixedly installed on the inner wall of the assembly frame, a combined evaporation component matched with the fixed diversion pipe and the fixed return pipe is installed inside the assembly frame, a bottom diversion port is provided on the lower surface of the assembly frame, a diversion fan is installed inside the bottom diversion port, external detection frames with adjustable angles are installed above and below the combined evaporation component inside the assembly frame, and a humidity sensing control module for controlling the combined evaporation component is installed on the inner wall of the external detection frame.

[0005] The combined evaporation component comprises fins, a metal flow guide tube fixed inside the fins, a lateral connecting tube sleeved at an opening of the metal flow guide tube, and an electric control valve core movably installed inside the lateral connecting tube.

[0006] The interior of the metal flow guide tube is divided into a first flow guide chamber and a second flow guide chamber by a middle partition.

[0007] Pressure sensors are fixed at the liquid outlets of the first flow guiding chamber and the second flow guiding chamber.

[0008] The electric control valve core includes an adjusting tube core movably installed in the lateral connecting tube, an adjusting flow channel opened inside the adjusting tube core, an annular tooth groove opened on the side wall of the adjusting tube core, a lateral adjusting gear installed on the outer side surface of the lateral connecting tube and an external adjusting motor for controlling the lateral adjusting gear.

[0009] The two side walls of the assembly frame are provided with lateral assembly through holes for assembling the external detection frame. The external detection frame is movably connected to the assembly frame by inserting the assembly shafts on both sides into the lateral assembly through holes. The ends of the assembly shafts on both sides of the external detection frame are axially fixed with end worm gears. The side walls of the assembly frame are movably equipped with side electric control screws that mesh with the end worm gears.

[0010] The outer side surface of the lateral connecting pipe is located outside the lateral adjusting gear and the outer adjusting motor and is fixedly equipped with an external protective cover shell.

[0011] The assembly frame is provided with a lateral baffle plate bent toward one side of the combined evaporation component.

[0012] The lateral connecting pipe is threadedly equipped with locking bolts on both sides of the electric control valve core, and the outer side of the metal guide pipe is provided with limiting blind holes matching with the locking bolts on both sides of the middle compartment assembly end.

[0013] The bottom surface of the assembly frame is located at the bottom air guide port, the upper end opening is located at the periphery of the air guide fan, and a peripheral lifting cover and a side lifting support rod for controlling the peripheral lifting cover are installed.

[0014] The beneficial effects of the present invention are:

[0015] (1) The split evaporator with automatic leakage monitoring and diversion mechanism of the present invention adopts a split structural design, which can be freely increased or decreased according to different refrigerator specifications, and the adaptability is greatly improved;

[0016] (2) By installing an external detection frame with adjustable angles on the upper and lower parts of the combined evaporation assembly inside the assembly frame, and using the external detection frame to install the humidity sensor control module, leakage in both gas and liquid states can be monitored, and leakage point monitoring is more accurate;

[0017] (3) The detection range can be expanded by using an external detection frame that can be electronically adjusted and flipped;

[0018] (4) The interior of the metal guide tube is divided into a first guide chamber and a second guide chamber by a central partition, which can be automatically switched according to the internal pressure change, so as to switch when a local leak occurs, ensuring normal operation during the maintenance phase;

[0019] (5) A lateral connecting pipe with an electric control valve core inside is installed at the opening of the metal guide pipe, which can automatically control the closing and switching of the pipeline at the leakage point according to the leakage situation, thereby enhancing safety and intelligence;

[0020] (6) A bottom air guide port is provided on the lower surface of the assembly frame, and an air guide fan is installed inside the bottom air guide port. The connection state with the internal chamber of the refrigerator is controlled according to the leakage condition, thereby greatly reducing the impact on the internal environment of the refrigerator and improving food safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0024] Figure 3 It is an internal schematic diagram of a local position of the combined evaporation component in the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the external detection frame in the present invention.

[0026] Figure 5 It is an internal schematic diagram of the location of the flow guide port of the metal flow guide pipe in the present invention. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A split evaporator with an automatic leakage monitoring and diversion mechanism shown in the figure comprises an assembly frame 1 installed inside the refrigerator, a fixed diversion pipe 2 and a fixed return pipe 3 are fixedly installed on the inner wall of the assembly frame 1, a combined evaporation component 4 matched with the fixed diversion pipe 2 and the fixed return pipe 3 is installed inside the assembly frame 1, a bottom diversion port 5 is provided on the lower surface of the assembly frame 1, a diversion fan 6 is installed inside the bottom diversion port 5, an external detection frame 7 with adjustable angles is installed above and below the combined evaporation component 4 inside the assembly frame 1, and a humidity sensing control module 8 for controlling the combined evaporation component 4 is installed on the inner wall of the external detection frame 7.

[0030] Working principle: by adjusting the angle of the external detection frame 7, the external detection frame 7 is controlled to flip to the upper or lower end of the combined evaporation component 4. The humidity sensing control module 8 is respectively arranged at the upper or lower end of the combined evaporation component 4. When a gaseous leak occurs in the combined evaporation component 4, the gas inside the combined evaporation component 4 contacts the humidity sensing control module 8 upward; when a liquid leak occurs in the combined evaporation component 4, the liquid inside the combined evaporation component 4 contacts the humidity sensing control module 8 downward. At this time, the humidity sensing control module 8 will control the angle adjustment of the external detection frame 7, thereby expanding the detection flipping of the humidity sensing control module 8. When the leak point is determined to be detected, the combined evaporation component 4 automatically adjusts to change the internal flow state, which can ensure the isolation of the flow channel at the leak point, so that the normal operation of the refrigerator evaporator can be maintained while the alarm is on, which does not affect the normal use of the refrigerator and prevents the refrigerator from being unable to operate during maintenance.

[0031] In order to cooperate with the electric control regulation, the combined evaporation component 4 includes fins 41, a metal guide tube 42 fixed inside the fins 41, a lateral connecting tube 43 sleeved on the opening position of the metal guide tube 42, and an electric control valve core 44 movably installed inside the lateral connecting tube 43.

[0032] The metal flow guide tube 42 fixed inside the fin 41 is fixedly assembled with the fixed flow guide tube 2 and the fixed return tube 3 through the electric control valve core 44 , and the metal flow guide tubes are also fixedly connected with each other through the electric control valve core 44 .

[0033] In order to switch the flow diversion, the interior of the metal flow diversion tube 42 is divided into a first flow diversion chamber 46 and a second flow diversion chamber 47 by a middle partition 45 .

[0034] The first flow guiding chamber 46 and the second flow guiding chamber 47 are independently arranged to ensure independent sealing properties.

[0035] In order to cooperate with internal pressure monitoring, pressure sensors 9 are fixed at the liquid outlets of the first flow guiding chamber 46 and the second flow guiding chamber 47 .

[0036] The pressures at the liquid outlets of the first flow guiding chamber 46 and the second flow guiding chamber 47 are respectively measured by the pressure sensor 9 .

[0037] In order to cooperate with the external adjustment motor 445 to control the connection angle, the electric control valve core 44 includes an adjustment tube core 441 movably installed in the lateral connecting tube 43, an adjustment flow channel 442 opened inside the adjustment tube core 441, an annular tooth groove 443 opened on the side wall of the adjustment tube core 441, a lateral adjustment gear 444 installed on the outer side of the lateral connecting tube 43 and an external adjustment motor 445 for controlling the lateral adjustment gear 444.

[0038] The external adjustment motor 445 drives the lateral adjustment gear 444 , which in turn drives the annular tooth groove 443 to control the rotation of the adjustment tube core 441 , thereby changing the connection state between the adjustment channel 442 and the first flow guide chamber 46 or the second flow guide chamber 47 .

[0039] Under normal conditions, the regulating channel 442 is connected to the first guide chamber 46 and the second guide chamber 47. Once the pressure inside the first guide chamber 46 or the second guide chamber 47 changes, the external regulating motor 445 drives the lateral regulating gear 444 to rotate, thereby controlling the rotation of the regulating tube core 441, and adjusting the regulating channel 442 to be connected to the first guide chamber 46 or the second guide chamber 47 with higher pressure. At this time, the first guide chamber 46 or the second guide chamber 47 with lower pressure will be offset from the regulating channel 442 to close the guide chamber with lower pressure, thereby closing the leaking guide chamber.

[0040] The external adjustment motor 445 controls the angle of the lateral adjustment gear 444 to be preset, thereby accurately controlling the communication state between the adjustment channel 442 and the first flow guide chamber 46 and the second flow guide chamber 47 .

[0041] In order to cooperate with lateral movable assembly and electric control, lateral assembly through holes for assembling the external detection frame 7 are opened on both side walls of the assembly frame 1. The external detection frame 7 is movably connected to the assembly frame 1 by inserting the lateral assembly through holes through the assembly shafts on both sides. The end parts of the assembly shafts on both sides of the external detection frame 7 are axially fixed with end worm gears 10, and the side wall of the assembly frame 1 is movably installed with a side electric control screw 11 that meshes with the end worm gear 10.

[0042] The side electric control screw 11 is meshed with the end worm wheel 10 for transmission. The side electric control screw 11 controls the rotation of the end worm wheel 10 by rotating, thereby controlling the external detection frame 7 to be assembled along the assembly axis.

[0043] In order to improve lateral protection and reduce wind resistance, an external protective cover shell 12 is fixedly mounted on the outer side of the lateral connecting pipe 43 outside the lateral adjustment gear 444 and the external adjustment motor 445 .

[0044] The outer protective cover shell 12 is fixedly mounted on the outside of the lateral connecting pipe 43 by means of bolts.

[0045] In order to prevent the liquid from leaking sideways, the assembly frame 1 is provided with a lateral baffle plate 13 bent toward one side of the combined evaporation assembly 4 .

[0046] In order to facilitate loading and unloading, locking bolts 14 are threadedly assembled on both sides of the electric control valve core 44 on the lateral connecting pipe 43, and limiting blind holes matching the locking bolts 14 are opened on both sides of the assembly end of the middle partition 45 outside the metal guide tube 42.

[0047] First, the two ends of the lateral connecting pipe 43 are respectively sleeved on the outside of the corresponding metal guide pipe 42, and then the inner end of the locking bolt 14 is controlled by a wrench to insert into the limiting blind hole. At this time, the lateral connecting pipe 43 is fixedly connected with the metal guide pipe 42.

[0048] In order to cooperate with the electric control lifting, the inner bottom surface of the assembly frame 1 is located at the upper end opening of the bottom guide port 5 and is located outside the guide fan 6 and is equipped with a peripheral lifting cover 15 and a side lifting support rod 16 for controlling the peripheral lifting cover 15.

[0049] The side lifting struts 16 control the height adjustment of the outer lifting cover 15 by telescoping, and the outer lifting cover 15 is lifted to open the upper opening of the bottom air guide port 5. At this time, the air guide fan 6 starts and rotates at high speed to blow the upper air cooled by the evaporator downward into the internal chamber of the refrigerator. At this time, the refrigerator adopts air cooling; when a leak occurs inside the combined evaporating component 4, the humidity sensing control module 8 detects an increase in humidity. At this time, the humidity sensing control module 8 will control the side lifting struts 16 to contract, control the outer lifting cover 15 to descend, and close the upper opening of the bottom air guide port 5. At this time, the air guide fan 6 starts and rotates at high speed to circulate the upper air cooled by the evaporator. At this time, the refrigerator adopts direct cooling.

[0050] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A split evaporator with an automatic leakage monitoring and flow guiding mechanism, comprising an assembly frame (1) installed inside a refrigerator, characterized in that: A fixed air guide tube (2) and a fixed return tube (3) are fixedly mounted on the inner wall of the assembly frame (1); a combined evaporation assembly (4) matching the fixed air guide tube (2) and the fixed return tube (3) is mounted inside the assembly frame (1); a bottom air guide port (5) is provided on the lower surface of the assembly frame (1); a guide fan (6) is mounted inside the bottom air guide port (5); external detection frames (7) with adjustable angles are mounted above and below the combined evaporation assembly (4) inside the assembly frame (1); a humidity sensor control module (8) for controlling the combined evaporation assembly (4) is mounted on the inner wall of the external detection frame (7); The combined evaporation assembly (4) comprises a metal flow guide tube (42), a lateral connecting tube (43) sleeved on an opening of the metal flow guide tube (42), and an electric control valve core (44) movably mounted inside the lateral connecting tube (43); The interior of the metal flow guide tube (42) is divided into a first flow guide chamber (46) and a second flow guide chamber (47) by a middle partition (45); The electric control valve core (44) comprises an adjusting tube core (441) movably mounted in the lateral connecting tube (43), an adjusting flow channel (442) provided inside the adjusting tube core (441), an annular tooth groove (443) provided on the side wall of the adjusting tube core (441), a lateral adjusting gear (444) mounted on the outer side surface of the lateral connecting tube (43), and an external adjusting motor (445) for controlling the lateral adjusting gear (444); Once leakage occurs, the regulating flow channel (442) is adjusted to be connected to the diversion chamber with a higher pressure, and the diversion chamber with a lower pressure is closed.

2. A split evaporator with a leakage point automatic monitoring and diversion mechanism according to claim 1, characterized in that: The combined evaporation component (4) further comprises a fin (41), and a metal flow guide tube (42) is fixed inside the fin (41).

3. The split evaporator with automatic leakage monitoring and diversion mechanism according to claim 1 is characterized in that: Pressure sensors (9) are fixed at the liquid outlets of the first flow guiding chamber (46) and the second flow guiding chamber (47).

4. The split evaporator with automatic leakage monitoring and flow guiding mechanism according to claim 1 is characterized in that: The side walls of the assembly frame (1) are provided with lateral assembly through holes for assembling the external detection frame (7); the external detection frame (7) is movably connected to the assembly frame (1) by inserting assembly shafts on both sides into the lateral assembly through holes; end worm gears (10) are axially fixed to the ends of the assembly shafts on both sides of the external detection frame (7); and a side electric control screw rod (11) meshing with the end worm gear (10) is movably mounted on the side wall of the assembly frame (1).

5. The split evaporator with automatic leakage monitoring and diversion mechanism according to claim 1 is characterized in that: An external protective cover shell (12) is fixedly mounted on the outer side of the lateral connecting pipe (43) and the periphery of the lateral adjustment gear (444) and the external adjustment motor (445).

6. The split evaporator with automatic leakage monitoring and diversion mechanism according to claim 1 is characterized in that: The assembly frame (1) is provided with a lateral baffle plate (13) around the periphery thereof, the baffle plate being bent toward one side of the combined evaporation component (4).

7. The split evaporator with automatic leakage monitoring and flow guiding mechanism according to claim 1 is characterized in that: The lateral connecting pipe (43) is threadedly provided with locking bolts (14) on both sides of the electric control valve core (44), and the metal flow guide pipe (42) is provided with limiting blind holes matching the locking bolts (14) on both sides of the assembly end of the middle partition (45) on the outside.

8. The split evaporator with automatic leakage monitoring and diversion mechanism according to claim 1 is characterized in that: The inner bottom surface of the assembly frame (1) is located at the bottom air guide port (5), the upper end opening is located at the periphery of the air guide fan (6), and a peripheral lifting cover (15) and a side lifting support rod (16) for controlling the peripheral lifting cover (15) are installed.

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