An evaporator for a refrigerator with a segmented defrosting and diversion mechanism

Abstract

The present invention relates to the technical field of refrigeration maintenance, and in particular to an evaporator for a refrigerator with a segmented defrosting and diversion mechanism, which includes a copper diversion pipe fixedly installed inside the refrigerator through an assembly frame and fins fixedly installed on the outer side of the copper diversion pipe. A horizontal diversion pipe is fixedly assembled on the inner bottom surface of the assembly frame. The evaporator for a refrigerator with a segmented defrosting and diversion mechanism of the present invention can change the angle of the electric control type lifting cylinder according to needs by adopting a design of an electrically controlled flipping structure, so as to adjust the gas extraction and discharge height of the evaporator, making the refrigeration range of the evaporator wider; the electric control type lifting cylinder can be telescopically adjusted, which can not only remove the frost at different heights at a fixed point, but also perform misaligned gas extraction to avoid sucking in high-temperature air and improve the refrigeration performance; the electric control type lifting cylinder is arranged inside the concave structure of the copper diversion pipe, and the structural layout is more reasonable and compact, and the volume is small.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration maintenance, and in particular to an evaporator for a refrigerator with a segmented defrosting diversion mechanism. Background Art

[0002] An air-cooled refrigerator controls the temperature inside the box by controlling the forced circulation of cold air and cooperates with the evaporator to cool down. In order to save internal storage space, the evaporator is usually arranged in the interlayer between the freezer and the refrigerator compartment or at the rear of the box body. However, since the temperature around the evaporator is very low, it is easy to frost on the surface of the coil or fin after long-term use, seriously affecting its refrigeration effect. At present, most evaporators improve the air flow around by installing a fan outside, but the position and operation mode of the fan are limited, which will cause the heat generated by local temperature control to be blown into the refrigerator, resulting in low accuracy of temperature control, and it is impossible to perform local temperature control and defrosting, thus greatly increasing power consumption. During the heating process, the entire surface of the evaporator is heated, resulting in a relatively large amount of heat generation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the position and operation mode of the current evaporator fan are limited, which will cause the heat generated by local temperature control to be blown into the refrigerator, resulting in low accuracy of temperature control, and it is impossible to perform local temperature control and defrosting, thus greatly increasing power consumption. During the heating process, the entire surface of the evaporator is heated, resulting in a relatively large amount of heat generation.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an evaporator for a refrigerator with a segmented defrosting diversion mechanism, including a copper diversion pipe fixedly installed inside the refrigerator through an assembly frame and fins fixedly installed outside the copper diversion pipe. A horizontal diversion pipe is fixedly assembled on the inner bottom surface of the assembly frame, and an electric control lifting cylinder is installed inside the copper diversion pipe on the horizontal diversion pipe.

[0005] A main internal diversion chamber and a secondary internal diversion chamber are provided inside the horizontal diversion pipe at the opening position of the lower end of the copper diversion pipe. A main drainage port communicating with the main internal diversion chamber and a secondary extraction port communicating with the secondary internal diversion chamber are provided on the outer side surface of the horizontal diversion pipe.

[0006] A centrifugal diversion blade is movably assembled inside the main internal diversion chamber through a horizontal shaft pipe. A main electric drive shaft passing through the main internal diversion chamber and the secondary internal diversion chamber is installed inside the horizontal diversion pipe. A magnetic control linkage mechanism for controlling the horizontal shaft pipe is assembled outside the main electric drive shaft inside the secondary internal diversion chamber.

[0007] The electronically controlled lifting cylinder includes an external adjustment housing movably sleeved outside a horizontally arranged diversion pipe, an electronically controlled adjustment module fixed on the outer side surface of the external adjustment housing, a flipping adjustment cylinder fixed on the outer arc surface of the external adjustment housing, a first electronically controlled telescopic cylinder slidably sleeved outside the flipping adjustment cylinder, and a second electronically controlled telescopic cylinder slidably sleeved outside the first electronically controlled telescopic cylinder.

[0008] The main drainage port and the secondary extraction port are arranged in a staggered manner, and an internal diversion chamber matching the main drainage port and the secondary extraction port is provided on the inner arc surface of the external adjustment housing.

[0009] An embedded temperature sensing controller is fixedly assembled inside the upper end opening of the second electronically controlled telescopic cylinder.

[0010] Lateral electric heating strips and a humidity sensing controller for controlling the lateral electric heating strips are installed on the outer arc surfaces of the first electronically controlled telescopic cylinder and the second electronically controlled telescopic cylinder.

[0011] The magnetically controlled linkage mechanism includes a fixed mounting seat axially sleeved on the main electric drive shaft, an external adjustment gear slidably sleeved outside the fixed mounting seat, an internal electromagnet assembled on the fixed mounting seat, and an iron spring installed between the external adjustment gear and the internal electromagnet, and a conical tooth ring inside the end of the horizontally arranged shaft tube.

[0012] A lateral air inlet is provided between the main internal diversion chamber and the secondary internal diversion chamber.

[0013] A detachable metal mesh frame is fixedly assembled on the inner top surface of the assembly frame body, and drying particles are filled inside the detachable metal mesh frame.

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

[0015] (1) By adopting an electronically controlled flipping structure design, the evaporator for a refrigerator with a segmented defrosting diversion mechanism of the present invention can change the angle of the electronically controlled lifting cylinder as needed, thereby adjusting the pumping and discharging height of the evaporator, making the refrigeration range of the evaporator wider;

[0016] (2) The electronically controlled lifting cylinder can be telescopically adjusted, which can not only remove frost at different heights point by point, but also perform staggered air extraction to avoid pumping in high-temperature air and improve the refrigeration performance;

[0017] (3) The electronically controlled lifting cylinder is arranged inside the concave structure of the copper diversion pipe, and the structural layout is more reasonable and compact, with a small volume;

[0018] (4) The horizontally arranged diversion pipe is internally provided with a main internal diversion chamber and a secondary internal diversion chamber. The centrifugal diversion blades inside the main internal diversion chamber can be independently controlled, enabling precise control of the air circulation state at different positions. This not only allows for zonal temperature regulation but also reduces the impact on the surrounding temperature during the defrosting process.

[0019] (5) The electronically controlled lifting cylinder can be directly installed below the existing evaporator mechanism, facilitating the transformation and upgrading of the existing evaporator and greatly facilitating popularization and promotion.

[0020] (6) By respectively arranging temperature sensing controllers on the outer side of the electronically controlled lifting cylinder, the temperature at different positions and heights can be measured, and the temperature measurement is more accurate.

[0021] (7) The heights of the entire air inlet and air outlet can be freely adjusted, making the operation simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 is a schematic structural diagram of the present invention.

[0024] Figure 2 is a schematic structural diagram of the magnetically controlled linkage mechanism in the present invention.

[0025] Figure 3 is a schematic internal view of the left side of the assembly end of the horizontally arranged diversion pipe and the electronically controlled lifting cylinder in the present invention.

[0026] Figure 4 is a schematic internal view of the right side of the assembly end of the horizontally arranged diversion pipe and the electronically controlled lifting cylinder in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present invention will now be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, and therefore only showing 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 defined, the terms "connected" and "coupled" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, 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 and Figure 4The evaporator for a refrigerator with a segmented defrost guide mechanism shown in the figure includes a copper guide tube 2 fixedly installed inside the refrigerator through an assembly frame 1 and fins 3 fixedly installed on the outside of the copper guide tube 2. A horizontal guide tube 4 is fixedly installed on the inner bottom surface of the assembly frame 1, and an electrically controlled lifting cylinder 5 is installed on the horizontal guide tube 4 and located inside the copper guide tube.

[0030] In order to cooperate with the internal drive adjustment, a main internal flow guide chamber 41 and a secondary internal flow guide chamber 42 are opened inside the horizontal flow guide tube 4 at the opening position of the lower end of the copper flow guide tube 2, and a main discharge port 43 connected to the main internal flow guide chamber 41 and a secondary suction port 44 connected to the secondary internal flow guide chamber 42 are opened on the outer surface of the horizontal flow guide tube 4.

[0031] External air is drawn into the auxiliary internal flow guiding chamber 42 from the auxiliary flow suction port 44 , then introduced into the main internal flow guiding chamber 41 , and finally discharged to the outside from the main flow discharge port 43 .

[0032] In order to cooperate with internal driving and adjustment, the main internal guide chamber 41 is movably equipped with centrifugal guide blades 46 through a transverse shaft tube 45, and the main electric drive shaft 6 that passes through the main internal guide chamber 41 and the auxiliary internal guide chamber 42 is installed inside the transverse guide tube 4, and the auxiliary internal guide chamber 42 is located outside the main electric drive shaft 6 and is equipped with a magnetically controlled linkage mechanism 7 for controlling the transverse shaft tube 45.

[0033] The main electric drive shaft 6 is transmission-connected to one end of the transverse shaft tube 45 through the magnetically controlled linkage mechanism 7, and then synchronously drives the centrifugal guide blades 46 to rotate at high speed.

[0034] Working principle: Under normal circumstances, the main electric drive shaft 6 drives the horizontal shaft tube 45 at all positions and the centrifugal guide blades 46 on its outer side to rotate at high speed through the magnetically controlled linkage mechanism 7, and then blows outward through the electrically controlled lifting cylinder 5. The electrically controlled lifting cylinder 5 can be flipped and adjusted according to the temperature difference in different areas inside the refrigerator; when the temperature at different positions differs, it indicates local frost. At this time, the electrically controlled lifting cylinder 5 at the position with higher temperature flips to the inside of the copper guide tube 2, and then the electrically controlled lifting cylinder 5 is telescopically adjusted to accurately locate the frosting position, and then the electric heating defrosting is started, and at the same time, the transmission connection state of the centrifugal guide blades 46 below and on both sides of the position is closed, so as to avoid the high temperature generated by the electric heating being directly introduced into the refrigerator, affecting the defrosting efficiency and the temperature inside the refrigerator; at the same time, the upper layer electric heating and the lower layer exhaust can be used to avoid the hot air being drawn in, so as to achieve the purpose of staggered temperature control.

[0035] To cooperate with the electric control for flipping and telescopic adjustment, the electric control type lifting cylinder 5 includes an external adjustment housing 51 movably sleeved outside the horizontally arranged diversion pipe 4, an electric control adjustment module 52 fixed on the outer side surface of the external adjustment housing 51, a flipping adjustment cylinder 53 fixed on the outer arc surface of the external adjustment housing 51, a first electric control telescopic cylinder 54 slidably sleeved outside the flipping adjustment cylinder 53, and a second electric control telescopic cylinder 55 slidably sleeved outside the first electric control telescopic cylinder 54.

[0036] The electric control adjustment module 52 includes a transmission convex seat fixed on the outer side surface of the external adjustment housing 51, an internal adjustment motor fixed on the transmission convex seat, an adjustment gear axially fixed on the rotating shaft of the internal adjustment motor, and an arc-shaped rack fixed outside the horizontally arranged diversion pipe 4. The internal adjustment motor drives the adjustment gear to rotate, thereby controlling the rotation adjustment of the external adjustment housing 51 along the horizontally arranged diversion pipe 4.

[0037] The first electric control telescopic cylinder 54 includes a first telescopic cylinder sleeved outside the flipping adjustment cylinder 53 and a first telescopic support rod fixed inside the flipping adjustment cylinder 53. The extending end of the first telescopic support rod is fixedly connected with a first control block on the inner wall of the first telescopic cylinder and the first telescopic cylinder. The second electric control telescopic cylinder 55 includes a second telescopic cylinder sleeved outside the first telescopic cylinder and a second telescopic support rod fixed inside the first telescopic cylinder. The extending end of the second telescopic support rod is fixedly connected with a second control block on the inner wall of the second telescopic cylinder and the second telescopic cylinder.

[0038] To cooperate with the staggered arrangement, the main drainage port 43 and the secondary suction port 44 are staggered, and an internal diversion chamber 56 matching the main drainage port 43 and the secondary suction port 44 is provided on the inner arc surface of the external adjustment housing 51.

[0039] Air is pumped from the secondary suction port 44 into the secondary internal diversion chamber 42, and then introduced into the main internal diversion chamber 41 through the secondary internal diversion chamber 42.

[0040] Arc-shaped sealing covers respectively matching the main drainage port 43 and the secondary suction port 44 are provided on both sides of the external adjustment housing 51.

[0041] To measure the temperature of the air inlet, an embedded temperature sensing controller 8 is fixedly assembled inside the upper end opening of the second electric control telescopic cylinder 55.

[0042] When the temperature exceeds the set maximum temperature, at this time the embedded temperature sensing controller 8 will control the first electric control telescopic cylinder 54 and the second electric control telescopic cylinder 55 to descend, and according to the temperature difference at different positions, thereby reduce the height of the air inlet, so as to avoid inhaling high temperature and reduce the air temperature of the air inlet.

[0043] In order to measure the humidity of the copper flow guide pipes 2 on both sides and the fins 3 on the outside, a lateral electric heating strip 9 and a humidity sensing controller 10 for controlling the lateral electric heating strip 9 are installed on the outer arc surfaces of the first electric control telescopic cylinder 54 and the second electric control telescopic cylinder 55.

[0044] The humidity sensing controllers 10 on both sides monitor the humidity at the corresponding positions respectively. When the humidity of the copper flow guide pipes 2 and the fins 3 on the outside at the corresponding positions exceeds the maximum set humidity, the lateral electric heating strip 9 is started at this time, and heat is radiated outward through the lateral electric heating strip 9, so as to dry the frost on the surface of the fins 3 on the outside.

[0045] When drying, the centrifugal flow guide blades 46 at this position stop rotating.

[0046] In order to cooperate with the magnetic control adjustment, the magnetically controlled linkage mechanism 7 includes a fixed mounting seat 71 axially sleeved on the main electric drive shaft 6, an external adjustment gear 72 slidably sleeved on the outside of the fixed mounting seat 71, an internal electromagnet 73 assembled on the fixed mounting seat 71, an iron spring 74 installed between the external adjustment gear 72 and the internal electromagnet 73, and a tapered tooth ring 47 on the inner side of the end of the horizontal shaft tube 45.

[0047] When the internal electromagnet 73 is started, the iron spring 74 is magnetically adsorbed. Through the contraction of the iron spring 74, the external adjustment gear 72 is controlled to slide, so that the external adjustment gear 72 meshes with the tapered tooth ring 47 for transmission. At this time, the main electric drive shaft 6 drives the external adjustment gear 72, so as to synchronously drive the horizontal shaft tube 45 and the tapered tooth ring 47, and then the horizontal shaft tube 45 and the centrifugal flow guide blades 46 rotate synchronously.

[0048] In order to cooperate with the internal air conduction, a lateral air inlet 48 is provided between the main internal flow guide chamber 41 and the secondary internal flow guide chamber 42.

[0049] Air is introduced from the secondary internal flow guide chamber 42 into the lateral air inlet 48, and then into the main internal flow guide chamber 41 through the lateral air inlet 48.

[0050] In order to adsorb the internal moisture of the air in the air inlet direction and purify the odor of the internal air at the same time, a detachable metal mesh frame 11 is fixedly assembled on the inner top surface of the assembly frame body 1, and drying particles are filled inside the detachable metal mesh frame 11.

[0051] A strip-shaped loading and unloading port is provided on the inner top surface of the assembly frame body 1. The assembly block at the top of the detachable metal mesh frame 11 is inserted into the strip-shaped loading and unloading port, and then inserted horizontally to fix and assemble it with the detachable metal mesh frame 11 and the assembly frame body 1.

[0052] Enlightened by the above-described ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An evaporator for a refrigerator with a segmented defrosting and guiding mechanism, comprising a copper guiding pipe (2) fixedly installed inside the refrigerator through an assembly frame (1) and fins (3) fixedly installed on the outer side of the copper guiding pipe (2), characterized in that: A horizontal diversion pipe (4) is fixedly assembled on the inner bottom surface of the described assembly frame (1), and an electric control type lifting cylinder (5) is installed inside the copper diversion pipe (2) on the horizontal diversion pipe (4); A main internal diversion chamber (41) and a secondary internal diversion chamber (42) are provided at the lower end opening position of the copper diversion pipe (2) inside the horizontal diversion pipe (4). A main drainage port (43) communicating with the main internal diversion chamber (41) and a secondary extraction port (44) communicating with the secondary internal diversion chamber (42) are provided on the outer side surface of the horizontal diversion pipe (4); A centrifugal diversion blade (46) is movably assembled inside the main internal diversion chamber (41) through a horizontal shaft pipe (45). A main electric drive shaft (6) passing through the main internal diversion chamber (41) and the secondary internal diversion chamber (42) is installed inside the horizontal diversion pipe (4). A magnetically controlled linkage mechanism (7) for controlling the horizontal shaft pipe (45) is assembled outside the main electric drive shaft (6) inside the secondary internal diversion chamber (42); The electric control type lifting cylinder (5) includes an external adjustment housing (51) movably sleeved outside the horizontal diversion pipe (4), an electric control adjustment module (52) fixed on the outer side surface of the external adjustment housing (51), a flipping adjustment cylinder (53) fixed on the outer arc surface of the external adjustment housing (51), a first electric control telescopic cylinder (54) slidably sleeved outside the flipping adjustment cylinder (53), and a second electric control telescopic cylinder (55) slidably sleeved outside the first electric control telescopic cylinder (54); The electric control adjustment module (52) controls the external adjustment housing (51) to rotate and adjust along the horizontal diversion pipe (4); The main drainage port (43) and the secondary extraction port (44) are arranged in a staggered manner, and an internal diversion chamber (56) matching the main drainage port (43) and the secondary extraction port (44) is provided on the inner arc surface of the external adjustment housing (51); The main drainage port (43) and the secondary extraction port (44) are arranged in a staggered manner, and an internal diversion chamber (56) matching the main drainage port (43) and the secondary extraction port (44) is provided on the inner arc surface of the external adjustment housing (51); A lateral electric heating strip (9) is installed on the outer arc surface of the electric control type lifting cylinder (5).

2. The evaporator for a refrigerator with a segmented defrosting and diversion mechanism according to claim 1, characterized in that: The electric control type lifting cylinder (5) includes an external adjustment housing (51) movably sleeved outside the horizontal diversion pipe (4), an electric control adjustment module (52) fixed on the outer side surface of the external adjustment housing (51), a flipping adjustment cylinder (53) fixed on the outer arc surface of the external adjustment housing (51), a first electric control telescopic cylinder (54) slidably sleeved outside the flipping adjustment cylinder (53), and a second electric control telescopic cylinder (55) slidably sleeved outside the first electric control telescopic cylinder (54).

3. The evaporator for a refrigerator with a segmented defrosting and diversion mechanism according to claim 2, characterized in that: An embedded temperature sensing controller (8) is fixedly assembled inside the upper end opening of the second electric control telescopic cylinder (55).

4. The evaporator for a refrigerator with a segmented defrosting and diversion mechanism according to claim 2, characterized in that: Lateral electric heating strips (9) and a humidity sensing controller (10) for controlling the lateral electric heating strips (9) are installed on the outer arc surfaces of the first electric control telescopic cylinder (54) and the second electric control telescopic cylinder (55).

5. The evaporator for a refrigerator with a segmented defrosting and diversion mechanism according to claim 1, characterized in that: The magnetically controlled linkage mechanism (7) includes a fixed mounting base (71) axially sleeved on the main electric drive shaft (6), an external adjustment gear (72) slidably sleeved on the outside of the fixed mounting base (71), an internal electromagnet (73) assembled on the fixed mounting base (71), and an iron spring (74) installed between the external adjustment gear (72) and the internal electromagnet (73). A conical tooth ring (47) is arranged on the inner side of the end of the horizontally arranged shaft tube (45).

6. The evaporator for a refrigerator with a segmented defrosting and diversion mechanism according to claim 1, wherein: A lateral air inlet (48) is formed between the main internal flow guiding chamber (41) and the secondary internal flow guiding chamber (42).

7. The evaporator for a refrigerator with a segmented defrosting and guiding mechanism according to claim 1, characterized in that: A detachable metal mesh frame (11) is fixedly assembled on the inner top surface of the assembly frame body (1), and the detachable metal mesh frame (11) is filled with dry particulate matter inside.

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