Finned evaporator with tee structure

Abstract

The application provides a fin evaporator with a three-way structure, comprising a refrigeration chamber heat dissipation evaporator and a plurality of freezing chamber heat dissipation evaporators, the refrigeration chamber heat dissipation evaporator is fixedly installed at the back of the refrigeration chamber, the plurality of freezing chamber heat dissipation evaporators are installed in parallel in the freezing chamber interlayer, the refrigeration chamber heat dissipation evaporator and the freezing evaporator group are provided with an air inlet at the air inlet side of the three-way adjusting pipe, the air inlet side of the air inlet is movably sleeved with an air inlet adjusting sliding sleeve, the sliding rheostat is electrically connected with the refrigerator compressor, and the rotating speed of the compressor is adjusted through the sliding rheostat, the application can timely adjust the refrigeration scheme according to the specific use scene in the use process of the refrigerator, so that the targeted partition heat dissipation is achieved without causing the interference condition of other partitions, the advantage of the application is that the heat dissipation efficiency is improved while the heat dissipation power consumption is reduced, and the purpose of precise cooling under the use of a single compressor is achieved.

Description

A finned evaporator with a three-way structure Technical Field

[0001] This invention relates to the field of refrigerator heat dissipation finned evaporators, specifically a finned evaporator with a three-way structure. Background Technology

[0002] Refrigerators are a common household appliance used to store and preserve food, beverages, and other items. As people's quality of life improves, their needs for refrigerators are no longer limited to simple cooling and preservation. When purchasing a refrigerator, they pay more attention to its temperature control level, power consumption, and other factors.

[0003] To better meet people's pursuit of quality of life, a heat dissipation system for a dual-compressor refrigerator, disclosed in the prior art (CN108332493A), relates to the field of refrigeration equipment technology. It includes a first compressor, a second compressor, a first condenser, a second condenser, and a fan assembly. The first and second compressors are mounted on the upper surface of the compressor base plate. A water collection tray is fixed to the upper surface of the compressor base plate. The fan assembly, the first condenser, and the second condenser are respectively mounted on the upper surface of the water collection tray. The compressor base plate is installed at the bottom of the refrigerator body. Side air inlet ducts and side air outlet ducts are respectively provided on opposite sides of the bottom of the refrigerator body. This device draws in cold air from the air inlet and the side air inlet ducts through the fan assembly, and blows out hot air from the compressor compartment from the air outlet and the side air outlet ducts, forming an effective airflow circulation. This achieves forced heat dissipation for the compressor and condenser, thereby greatly improving the compressor's working efficiency and the condenser's heat exchange efficiency, and reducing the overall energy consumption of the machine.

[0004] The above-mentioned device uses a dual-compressor system to control the temperature of the refrigerator and freezer compartments separately. This heat dissipation method is commonly found in high-end refrigerators and its temperature control is relatively precise. However, the heat dissipation system of the above-mentioned dual-compressor refrigerator still has obvious defects in use: the above-mentioned dual-compressor solution increases equipment cost, power consumption and heat generation, and increases the workload of the refrigerator's heat dissipation pipes.

[0005] However, existing single-compressor refrigerators rely on a single heat dissipation cycle to control the temperature of both the refrigeration and freezing compartments, resulting in significant temperature fluctuations. Furthermore, tests have shown that the refrigerator's high heat dissipation demand typically occurs after the door is opened and closed. This heat exchange between the inside and outside gases causes the temperature inside the refrigeration or freezing compartment to rise. While current single-compressor refrigerators detect temperature increases through built-in sensors and then increase the compressor speed to cool the interior, this cooling method lacks specificity. For example, if only the refrigeration compartment is opened while the freezing compartment remains closed, the single-compressor solution still cools both compartments indiscriminately. This leads to poor cooling speed in the refrigeration compartment and temperatures in the freezing compartment falling below the set value, thus affecting the cooling effect and increasing power consumption.

[0006] To address the aforementioned problems, the present invention aims to provide a finned evaporator with a three-way structure that has a relatively conventional equipment cost and can provide targeted heat dissipation and cooling according to specific usage scenarios. Summary of the Invention

[0007] The purpose of this invention is to provide a finned evaporator with a three-way structure to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A finned evaporator with a three-way structure includes a refrigerator compartment heat dissipation evaporator and several freezer compartment heat dissipation evaporators. The refrigerator compartment heat dissipation evaporator is fixedly installed on the back of the refrigerator compartment, and the several freezer compartment heat dissipation evaporators are installed in parallel in the freezer compartment interlayer. The several freezer compartment heat dissipation evaporators are connected in series by pipes to form a freezer evaporator group with unidirectional heat dissipation steam. The air inlet ends of the refrigerator compartment heat dissipation evaporator and the freezer evaporator group are both fixedly installed in a three-way regulating pipe. The three-way regulating pipe is connected to the refrigeration components at the bottom of the refrigerator through a heat dissipation main pipe. The air outlet ends of the refrigerator compartment heat dissipation evaporator and the freezer evaporator group are connected to the return air main pipe.

[0010] The evaporator for cooling and freezing in the refrigerator compartment has an air inlet on one side of the air inlet end inside the three-way regulating pipe. An air inlet regulating sleeve is movably fitted on the air inlet end outside the air inlet. The air inlet regulating sleeve changes the size of the air inlet by sliding. The air inlet regulating sleeve is movably abutted against the sliding end of a sliding rheostat via a lever. The sliding rheostat is electrically connected to the refrigerator compressor. The speed of the compressor is adjusted by the sliding rheostat. The air inlet regulating sleeve reciprocates under the push of the air inlet regulating mechanism.

[0011] Preferably, the air intake adjustment mechanism includes a miniature linear motor. The air intake adjustment sleeves of the refrigerator compartment heat dissipation evaporator and the freezer evaporator group are respectively equipped with miniature linear motors. The extension and retraction of the miniature linear motors drive the movement of each air intake adjustment sleeve, thereby adjusting the opening size of the air intake. The miniature linear motors are connected to a sensing mechanism, which transmits sliding signals.

[0012] Preferably, the air intake adjustment mechanism includes a hydraulic telescopic piston cylinder. The movement of the hydraulic telescopic piston cylinder drives the air intake adjustment sleeve of the refrigeration evaporator or the freezer evaporator assembly in the refrigerator compartment to move, thereby adjusting the size of the air intake opening. The micro linear motor is connected to the sensing mechanism, which transmits a sliding signal.

[0013] Preferably, the sensing mechanism includes a temperature sensor and a door opening / closing sensor respectively disposed in the refrigerator compartment and the freezer compartment.

[0014] Preferably, the door switch sensor is a contact switch spring. During the opening and closing process of the refrigerator door in the refrigerator compartment or freezer compartment, the contact switch spring is activated and deactivated, thereby sending an action signal to the air intake adjustment mechanism.

[0015] Preferably, the door switch sensor is an active hydraulic telescopic rod. During the opening and closing of the refrigerator or freezer cabinet door, the active hydraulic telescopic rod extends and retracts, driving the hydraulic telescopic piston cylinder to extend and retract. The active hydraulic telescopic rod and the hydraulic telescopic piston cylinder are connected by a pipe.

[0016] Preferably, the refrigeration evaporator and the freezer evaporator assembly are equipped with limiting slides on both sides of the air inlet end inside the three-way regulating pipe, and the air inlet regulating sleeve is provided with a slide channel that cooperates with the limiting slide.

[0017] Preferably, a one-way air inlet valve is installed at both the outlet end of the refrigeration evaporator assembly and the end of the return air main near the evaporator in the cold storage compartment.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention allows the refrigerator to adjust the cooling scheme in a timely manner according to the specific usage scenario, thereby achieving targeted heat dissipation in specific zones without interfering with other zones. The advantage of this setting is that it improves heat dissipation efficiency while reducing heat dissipation power consumption, thus achieving precise cooling when a single compressor is in use. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the enlarged structure of region A of the present invention;

[0022] Figure 3 is a schematic diagram of the installation state of the intake regulating slide sleeve of the present invention;

[0023] Figure 4 is a schematic diagram of the connection state of the hydraulic telescopic piston cylinder of the present invention;

[0024] Figure 5 is a schematic diagram of the connection state between the sliding rheostat and the compressor of the present invention;

[0025] Figure 6 is a schematic diagram of the sliding adjustment state of the intake adjustment sleeve of the present invention;

[0026] Figure 7 is a schematic diagram of the evaporator for cooling the freezer compartment of the present invention.

[0027] In the diagram: 1. Refrigerator compartment heat dissipation evaporator, 2. Freezer compartment heat dissipation evaporator, 3. Freezer evaporator assembly, 4. Three-way regulating pipe, 5. Heat dissipation main pipe, 6. Return gas main pipe, 7. Air inlet end, 8. Air inlet, 9. Air inlet regulating sleeve, 10. Lever, 11. Sliding rheostat, 12. Miniature linear motor, 13. Hydraulic telescopic piston cylinder, 14. One-way air inlet valve, 15. Active hydraulic telescopic rod, 16. Limiting slide bar, 17. Air outlet end, 18. Compressor, 19. Cabinet door. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please refer to Figures 1-7. This invention provides a technical solution:

[0030] Example 1:

[0031] A finned evaporator with a three-way structure includes a refrigerator compartment heat dissipation evaporator 1 and several freezer compartment heat dissipation evaporators 2. The refrigerator compartment heat dissipation evaporator 1 is fixedly installed on the back of the refrigerator compartment, and the several freezer compartment heat dissipation evaporators 2 are installed in parallel in the freezer compartment interlayer. The several freezer compartment heat dissipation evaporators 2 are connected in series by pipes to form a freezer evaporator group 3 with unidirectional heat dissipation steam. The air inlet ends of both the refrigerator compartment heat dissipation evaporator 1 and the freezer evaporator group 3 are fixedly installed in a three-way regulating pipe 4. The three-way regulating pipe 4 is connected to the refrigeration components at the bottom of the refrigerator through a heat dissipation main pipe 5. The air outlet ends of the refrigerator compartment heat dissipation evaporator 1 and the freezer evaporator group 3 are connected to a return air main pipe 6.

[0032] The evaporator 1 and the freezer evaporator group 3 in the refrigerator compartment are provided with an air inlet 8 on one side of the air inlet end 7 inside the three-way regulating pipe 4. The air inlet end 7 outside the air inlet 8 is movably fitted with an air inlet regulating sleeve 9. The air inlet regulating sleeve 9 changes the size of the air inlet 8 by sliding. The air inlet regulating sleeve 9 is moved against the sliding end of the sliding rheostat 11 through the lever 10. The sliding rheostat 11 is electrically connected to the refrigerator compressor 18. The speed of the compressor 18 is adjusted by the sliding rheostat 11. The air inlet regulating sleeve 9 slides back and forth under the push of the air inlet regulating mechanism.

[0033] In this embodiment, the refrigerator compartment evaporator 1 and the freezer compartment evaporator group 3 are respectively placed in the refrigerator compartment and freezer compartment. They are connected in series to the main heat dissipation pipe 5 via a three-way regulating pipe 4. The main heat dissipation pipe 5 is connected to the refrigeration assembly at the bottom of the refrigerator. The refrigeration assembly in this embodiment is a commonly used refrigeration assembly in refrigerators in the prior art. The refrigeration assembly transports low-temperature gas upward through the three-way regulating pipe 4, thereby cooling the refrigerator compartment and freezer compartment. Unlike the prior art, in this embodiment, the three-way regulating pipe 4 is connected to the refrigerator compartment evaporator 1 and the freezer compartment evaporator group 3 in parallel. The parallel pipe connection allows the gas flow path to be adjusted according to the actual heat dissipation needs, thereby improving heat dissipation efficiency and reducing temperature. To achieve low heat dissipation and selective gas flow, the refrigerator compartment evaporator 1 and the freezer evaporator group 3 have air inlets 8 on one side of the air inlet end 7 inside the three-way regulating pipe 4. Air inlet adjusting sleeves 9 are movably fitted on the air inlet end 7 outside the air inlet 8. The opening size of the air inlet 8 is adjusted by sliding the air inlet adjusting sleeves 9. Referring to Figure 6 in the instruction manual, the air inlet 8 is normally set to its minimum opening size, in which state the gas flow is relatively slow. By adjusting the size of the air outlets of the refrigerator compartment evaporator 1 and the freezer evaporator group 3, the heat dissipation gas flows to the refrigerator or freezer compartment in a certain proportion under normal conditions, thereby stabilizing the temperature difference between the two. Regarding the heat exchange between the inside and outside of the refrigerator when the refrigerator door is opened and closed, if the refrigerator compartment... When the door is opened, the air intake regulating sleeve 9 of the refrigerator compartment evaporator 1 slides, increasing the opening of the air inlet 8. At this time, gas preferentially enters the refrigerator compartment through the enlarged air inlet, thus specifically cooling the refrigerator compartment. When both the refrigerator and freezer compartments are open, the opening size of the air inlets 8 of both increases as the air intake regulating sleeve 9 slides. To accommodate the increased heat dissipation demand under these conditions, the driving mechanism of the air intake regulating sleeve 9 in this embodiment is a miniature linear motor 12. The extension and retraction of the miniature linear motor 12 drives the extension and retraction of the air intake regulating sleeve 9, thereby adjusting the opening size of the air inlet 8. The miniature linear motor 12 is electrically connected to a sensing mechanism, which in this embodiment includes a temperature sensor and a door switch contact spring. During daily use, the temperature sensor detects the temperature of the freezer or refrigerator compartment. When the temperature is stable, the compressor 18 operates at a lower speed. When the temperature rises to a certain threshold, the refrigerator's MCU central control unit increases the speed of the compressor 18 to cool the freezer or refrigerator compartment. Furthermore, for scenarios where the refrigerator experiences the greatest heat fluctuations during door opening and closing, this embodiment also installs switch contact springs in the freezer and refrigerator compartments. When the door is opened or closed, the switch contact springs switch on and off, sending a door opening signal 19 to the MCU central control unit. At this time, the MCU central control unit sends an action command to the corresponding micro linear motor 12, causing the air inlet 8 to open wider. Furthermore, during the sliding of the air inlet adjusting sleeve 9...The intake regulating sleeve 9 also drives the sliding rheostat 11 via the lever 10. The resistance of the rheostat 11 connected to the compressor 18 is adjusted, thereby adjusting the speed of the compressor 18. The adjustment principle is that when the opening of the intake port 8 increases, the speed of the compressor 18 increases accordingly, and vice versa. This method further ensures that the gas flow rate increases synchronously when the opening of the intake port 8 increases, thus enabling targeted cooling of each zone. During the cooling process, the gas preferentially passes through the larger opening of the intake port 8, reducing the impact on zones that do not require cooling, thereby improving temperature control accuracy. Similarly, the aforementioned micro linear motor 12 can be replaced by an electro-hydraulic telescopic piston cylinder 13, which also uses a switch contact spring for monitoring the opening and closing of the cabinet door.

[0034] Example 2:

[0035] In this embodiment, the intake regulating mechanism is a combination of a micro linear motor 12 and a hydraulic telescopic piston cylinder 13. Referring to Figure 2 in the specification, in this combination, the hydraulic telescopic piston cylinder 13 is non-electrically driven and is connected to an active hydraulic telescopic rod 15 installed on one side of the cabinet door 19 via a pipe. During the opening of the cabinet door 19, the liquid inside the active hydraulic telescopic rod 15 flows through the pipe to the hydraulic telescopic piston cylinder 13, thereby causing it to extend and push the intake regulating sleeve 9 to move. When the cabinet door 19 is closed, the extension end of the hydraulic telescopic piston cylinder 13 returns to its original position. At this time, the intake regulating sleeve 9 is moved to the position where the air inlet 8 is at its maximum opening. The movement of the intake regulating sleeve 9 synchronously drives the sliding rheostat 11 to reduce its resistance, thereby increasing the speed of the compressor 18. The reverse pushing mechanism of the intake regulating sleeve 9 is a micro linear motor 12. The micro linear motor 12 is electrically connected to the temperature sensors inside the refrigeration and freezing compartments. When the temperature inside the cabinet decreases, the micro linear motor 12 pushes the intake regulating sleeve 9 to slide a certain distance. At this time, the speed of the compressor 18 is changed accordingly. When the temperature inside the cabinet drops to the set temperature, the micro linear motor 12 pushes the intake regulating sleeve 9 to reset. At this time, the compressor 18 runs at the lower speed again. In order to ensure the stability of the extension and retraction of the intake regulating sleeve 9, limit strips 16 are also installed on both sides of the intake end of the refrigeration evaporator 1 and the freezing evaporator group 3 located in the three-way regulating pipe 4. The intake regulating sleeve 9 is provided with a slide channel that cooperates with the limit strip 16. At the same time, in order to ensure the unidirectional flow of gas, the outlet end 17 of the freezing evaporator group 3 and the end of the return main pipe 6 near the refrigeration evaporator 1 are both equipped with one-way intake valves 14.

[0036] 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. A finned evaporator with a three-way structure, comprising a refrigerator compartment heat dissipation evaporator and several freezer compartment heat dissipation evaporators, wherein the refrigerator compartment heat dissipation evaporator is fixedly installed on the back of the refrigerator compartment, and the several freezer compartment heat dissipation evaporators are installed in parallel within the freezer compartment interlayer, and the several freezer compartment heat dissipation evaporators are connected in series by pipes to form a freezer evaporator group with unidirectional inflow and outflow of heat dissipation steam, characterized in that: The air inlet ends of the refrigerator compartment evaporator and the freezer evaporator assembly are both fixedly installed inside a three-way regulating pipe. The three-way regulating pipe is connected to the refrigeration components at the bottom of the refrigerator through the main heat dissipation pipe. The air outlet ends of the refrigerator compartment evaporator and the freezer evaporator assembly are connected to the return air main pipe. An air inlet is provided on one side of the air inlet end of the refrigerator compartment evaporator and the freezer evaporator assembly located inside the three-way regulating pipe. An air inlet regulating sleeve is movably fitted on the air inlet end outside the air inlet. The air inlet regulating sleeve changes the size of the air inlet by sliding. The air inlet regulating sleeve is movably abutted against the sliding end of a sliding rheostat through a lever. The sliding rheostat is electrically connected to the refrigerator compressor. The speed of the compressor is adjusted by the sliding rheostat. The air inlet regulating sleeve reciprocates under the push of the air inlet regulating mechanism.

2. The finned evaporator with a three-way structure according to claim 1, characterized in that: The air intake adjustment mechanism includes a miniature linear motor. The air intake adjustment sleeves of the refrigerator compartment heat dissipation evaporator and the freezer evaporator group are respectively equipped with miniature linear motors. The extension and retraction of the miniature linear motors drive the movement of each air intake adjustment sleeve, thereby adjusting the size of the air intake opening. The miniature linear motors are connected to a sensing mechanism, which transmits sliding signals.

3. A finned evaporator with a three-way structure according to claim 2, characterized in that: The air intake adjustment mechanism includes a hydraulic telescopic piston cylinder. The movement of the hydraulic telescopic piston cylinder drives the air intake adjustment sleeve of the refrigeration evaporator or the freezer evaporator assembly in the refrigerator compartment to move, thereby adjusting the size of the air intake opening. The micro linear motor is connected to the sensing mechanism, which transmits the sliding signal.

4. A finned evaporator with a three-way structure according to claim 2 or 3, characterized in that: The sensing mechanism includes temperature sensors and door opening / closing sensors respectively installed in the refrigerator compartment and freezer compartment.

5. A finned evaporator with a three-way structure according to claim 4, characterized in that: The door switch sensor is a contact switch spring. During the opening and closing process of the refrigerator door in the refrigerator compartment or freezer compartment, the contact switch spring is activated and deactivated, thereby sending an action signal to the air intake adjustment mechanism.

6. A finned evaporator with a three-way structure according to claim 4, characterized in that: The door switch sensor is an active hydraulic telescopic rod. During the opening and closing of the refrigerator or freezer cabinet door, the active hydraulic telescopic rod extends and retracts, driving the hydraulic telescopic piston cylinder to extend and retract. The active hydraulic telescopic rod and the hydraulic telescopic piston cylinder are connected by a pipe.

7. A finned evaporator with a three-way structure according to claim 4, characterized in that: The refrigeration evaporator and the freezer evaporator assembly in the refrigerator compartment are equipped with limit slides on both sides of the air inlet end inside the three-way regulating pipe, and the air inlet regulating sleeve is provided with a slide channel that cooperates with the limit slide.

8. A finned evaporator with a three-way structure according to claim 7, characterized in that: One-way air inlet valves are installed at the outlet end and the return air main pipe near the heat dissipation evaporator of the refrigerator compartment of the refrigeration evaporator group.

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