Multi-section differential temperature defrosting electric heating tube heater

Abstract

The utility model discloses a multistage differential temperature defrosting electric heating tube heater, which belongs to the technical field of electric heating tube heaters, a temperature control device is arranged on a radiating fin, the temperature control device comprises fixed plates arranged on two sides of the radiating fin and heaters arranged on the fixed plates, a plurality of temperature detectors are arranged on the radiating fin, and the temperature detectors are arranged on the fixed plates. A plurality of heating pipes are further arranged on the heat dissipation fins, the heating pipes are located between the two evaporator coil pipes, a plurality of sets of heating wires with different diameters are arranged in the heating pipes, and the heating wires are sequentially connected. According to the different frosting degrees of different positions of the evaporator coil and the heat dissipation fins, the heating wires with different thicknesses are arranged, the heating wires with low heating power and the heating wires with high heating power can conduct defrosting at the same time according to frosting of different degrees, the defrosting efficiency is effectively improved, and meanwhile energy conservation and consumption reduction are achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric heating tube heaters, specifically relating to a multi-segment differential temperature defrosting electric heating tube heater. Background Technology

[0002] The evaporator in a refrigeration system is responsible for absorbing heat. As the refrigerant evaporates, it absorbs heat from the surrounding environment, causing the evaporator surface temperature to drop. When the surface temperature falls below the dew point of the surrounding air, moisture in the air condenses. If the temperature drops further below freezing, this moisture will form frost.

[0003] The degree of frost varies in different locations on the evaporator (e.g., the bottom is more severely affected). Single-power heating can lead to localized overheating or incomplete defrosting. Electric defrosting involves the heating element running parallel to the refrigerant piping: the heating element is arranged close to the refrigerant piping of the evaporator and is directly heated by electricity. Its advantages are simple control and low cost, but its disadvantages are that the heating time and temperature are difficult to control and it is easy to overheat and damage components. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-segment differential temperature defrosting electric heating tube heater to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: it includes several evaporator coils, each evaporator coil is composed of multiple winding evaporator tubes, and each evaporator coil is provided with several heat dissipation fins evenly distributed from top to bottom. The evaporator coils are fixedly connected to the heat dissipation fins, and each heat dissipation fin is provided with a temperature control device.

[0005] The temperature control device includes a fixed plate disposed on both sides of the heat dissipation fins and a heater mounted on the fixed plate. Several temperature detectors are installed on the heat dissipation fins, and several heating tubes are also provided on the heat dissipation fins. The heating tubes are located between two evaporator coils, and multiple sets of heating wires with different diameters are provided inside the heating tubes, which are connected in sequence.

[0006] It should be noted in the solution that an auxiliary temperature control device is also provided on one side of the heat dissipation fins;

[0007] The auxiliary temperature control device includes a mounting base disposed on one side of the heat dissipation fins, the mounting base being located between two fixed plates, and several fans being mounted on the mounting base.

[0008] It should be noted in the solution that each of the heat dissipation fins has several drainage holes.

[0009] It should be noted in the solution that several air guide plates are also provided between the heat dissipation fins, and one end of the air guide plate is fixed to the heat dissipation fins.

[0010] It needs to be explained in the scheme that the mounting groove is arranged on the heat dissipation fin, and the heating pipe is arranged in the mounting groove, and one side of the heating pipe protrudes from the surface of the heat dissipation fin.

[0011] Compared with the prior art, the multi-section differential temperature defrosting electric heating pipe heater provided by the utility model has at least the following beneficial effects:

[0012] (1) Through the setting of the temperature control device, in the actual use process, the temperature on the heat dissipation fin is detected by the temperature detector, when the surface of the heat dissipation fin is frosted, the temperature replacement efficiency of the heat dissipation fin and the air decreases, the temperature of the heat dissipation fin starts to decrease, when the temperature of the heat dissipation fin decreases to the predetermined value, the heater is started, the heating wire in the heating pipe is heated by the heater, according to the different frost degrees of different positions of the evaporator coil and the heat dissipation fin, the heating wires with different thicknesses are arranged, the heating wires with low heating power and the heating wires with high heating power can simultaneously defrost the frost with different degrees, effectively improve the defrosting efficiency, and energy saving and consumption reduction are realized.

[0013] (2) Through the setting of the auxiliary temperature control device, in the actual use process, the air circulation can be accelerated by controlling the wind speed of the fan when the evaporator coil and the heat dissipation fin are refrigerated, the refrigeration effect is enhanced, when the heating pipe is heated, the fan can be controlled to provide a small wind speed, so that the heat of the heating pipe is diffused to the surrounding heat dissipation fin and evaporator coil, the defrosting speed of the evaporator coil and the heat dissipation fin is accelerated, the temperature around the heating pipe is prevented from being too high, and the heat dissipation fin is prevented from being damaged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a schematic view of the three-dimensional structure of the utility model product;

[0015] Fig. 2 It is a schematic view of the top view structure of the utility model product;

[0016] Fig. 3 It is a schematic view of the top view structure of the utility model product;

[0017] Fig. 4 It is a schematic view of the auxiliary temperature control device structure of the utility model product;

[0018] Fig. 5 It is a schematic view of the side view structure of the utility model product;

[0019] Fig. 6 It is an enlarged schematic view of the A place of the utility model product.

[0020] In the drawing: 1. Evaporator coil; 2. Heat dissipation fin; 3. Heater; 4. Fixed plate; 5. Drain hole; 6. Temperature detector; 7. Heating pipe; 8. Heating wire; 9. Mounting seat; 10. Fan; 11. Guide plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figs. 1-6 A multi-section differential temperature defrosting electric heating pipe heater, comprising a plurality of evaporator coils 1, the evaporator coil is composed of multiple evaporation pipes, a plurality of heat dissipation fins 2 are evenly distributed on the evaporator coil 1 from top to bottom, and the evaporator coil 1 and the heat dissipation fin 2 are fixedly connected.

[0023] In the prior art, the evaporator is responsible for absorbing heat in the refrigeration system. When the internal refrigerant evaporates, it will absorb the heat around it, resulting in a decrease in the surface temperature of the evaporator. Through the arrangement of the evaporator coil 1 and the heat dissipation fin 2, the heat absorption area of the evaporator coil can be increased. When the surface temperature is lower than the dew point temperature of the surrounding air, the moisture in the air will condense into water. If the temperature is further reduced below the freezing point, the moisture will frost. Electric heating defrosting is an electric heating pipe and a refrigerant pipeline in parallel: the heating pipe is arranged close to the evaporator refrigerant pipeline to ensure that the heat is directly conducted to the frost surface. Through direct heating, the advantages are simple control, and the disadvantages are that the heating time and temperature are not easy to control, and the components are easy to be damaged by overheating.

[0024] Further, referring to Figs. 1-6 It is worth noting that the heat dissipation fin 2 is provided with a temperature control device, the temperature control device comprises a fixed plate 4 arranged on both sides of the heat dissipation fin 2 and a heater 3 mounted on the fixed plate 4, a plurality of temperature detectors 6 are mounted on the heat dissipation fin 2, and a plurality of heating pipes 7 are further arranged on the heat dissipation fin 2, the heating pipe 7 is located between two evaporator coils 1, a plurality of heating wires 8 with different diameters are arranged in the heating pipe 7, and the heating wires 8 are sequentially connected.

[0025] Through the setting of the temperature control device, in actual use, the temperature on the heat dissipation fin 2 is detected by the temperature detector 6, when the surface of the heat dissipation fin 2 is frosted, the temperature replacement efficiency of the heat dissipation fin 2 and the air is reduced, the temperature of the heat dissipation fin 2 starts to decrease, when the temperature of the heat dissipation fin 2 decreases to a predetermined value, the heater 3 is started, the heater 3 heats the heating wire 8 in the heating pipe 7, according to the different frost degree of the evaporator coil 1 and the heat dissipation fin 2 at different positions, different thickness of the heating wire 8 is set, the heating wire 8 with low heating power and the heating wire 8 with high heating power can defrost at the same time according to different frost degree, which effectively improves the defrosting efficiency and realizes energy saving and consumption reduction.

[0026] Further, referring to Figs. 1-6 It is worth noting that one side of the heat dissipation fin 2 is also provided with an auxiliary temperature control device, the auxiliary temperature control device comprises a mounting seat 9 arranged on one side of the heat dissipation fin 2, the mounting seat 9 is located between the two fixed plates 4, and a plurality of fans 10 are mounted on the mounting seat 9.

[0027] Through the setting of the auxiliary temperature control device, in actual use, when the evaporator coil 1 and the heat dissipation fin 2 are refrigerated, the air circulation can be accelerated by controlling the wind speed of the fan 10, and the refrigeration effect is enhanced, when the heating pipe 7 is heated, the fan 10 can provide a smaller wind speed to make the heat of the heating pipe 7 spread to the surrounding heat dissipation fin 2 and evaporator coil 1, so as to accelerate the defrosting speed of the evaporator coil 1 and the heat dissipation fin 2, avoid the temperature around the heating pipe 7 being too high, and damage the heat dissipation fin 2.

[0028] Further, referring to Figs. 1-6 It is worth noting that a mounting groove is arranged on the heat dissipation fin 2, the heating pipe 7 is arranged in the mounting groove, one side of the heating pipe 7 protrudes from the surface of the heat dissipation fin 2, and a plurality of flow guides 11 are arranged between the heat dissipation fins 2, one end of the flow guide 11 is fixed on the heat dissipation fin 2.

[0029] Through the setting of the flow guide 11, in actual use, the airflow blown by the fan 10 is guided by the flow guide 11, the time of the airflow staying between the heat dissipation fins 2 is increased, and the heat replacement effect between the airflow and the heat dissipation fins 2 is enhanced.

[0030] Further, referring to Figs. 1-6 It is worth noting that a plurality of drainage holes 5 are arranged on the heat dissipation fin 2.

[0031] Through the setting of the drainage hole 5, in actual use, the accumulated water defrosted is discharged through the drainage hole 5.

[0032] The above has carried out the introduction to the multi-section temperature difference defrosting electric heating pipe heater provided by the utility model, the principle and implementation mode of the utility model have been described in the introduction by applying the specific preferred embodiments, these embodiments are only used for helping understanding the principle and core thought of the utility model, it should be pointed out that, for ordinary skilled person in the art, under the premise of not departing from the design thought of the utility model, the implementation scheme in the above embodiment can be further combined or replaced, the utility model can be improved and modified several times, these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A multi-stage differential temperature defrosting electric heating tube heater, comprising a plurality of evaporator coils (1) composed of multiple winding evaporator tubes, wherein a plurality of heat dissipation fins (2) are uniformly distributed from top to bottom on the evaporator coils (1), and the evaporator coils (1) and the heat dissipation fins (2) are fixedly connected, characterized in that: The heat dissipation fin (2) is provided with a temperature control device; ​ The temperature control device comprises fixing plates (4) arranged on both sides of the heat dissipation fin (2) and a heater (3) mounted on the fixing plates (4), a plurality of temperature detectors (6) are mounted on the heat dissipation fin (2), a plurality of heating pipes (7) are further arranged on the heat dissipation fin (2), the heating pipes (7) are located between two evaporator coils (1), a plurality of groups of heating wires (8) with different diameters are arranged in the heating pipes (7), and the heating wires (8) are sequentially connected.

2. A multi-section differential temperature defrosting electric heating tube heater according to claim 1, characterized in that: One side of the heat dissipation fin (2) is further provided with an auxiliary temperature control device; The auxiliary temperature control device comprises a mounting seat (9) arranged on one side of the heat dissipation fin (2), the mounting seat (9) is located between the two fixing plates (4), and a plurality of fans (10) are mounted on the mounting seat (9).

3. A multi-section differential temperature defrosting electric heater tube according to claim 2, characterized in that: A plurality of drainage holes (5) are formed in the heat dissipation fin (2).

4. The multi-section differential temperature defrosting electric heating tube heater according to claim 3, characterized in that: A plurality of guide plates (11) are further arranged between the heat dissipation fins (2), and one end of the guide plate (11) is fixed on the heat dissipation fin (2).

5. A multi-section differential temperature defrosting electric heater tube according to claim 4, characterized in that: The heat dissipation fin (2) is provided with a mounting groove, the heating pipe (7) is arranged in the mounting groove, and one side of the heating pipe (7) protrudes from the surface of the heat dissipation fin (2).

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