Aluminum tube heater for defrosting of refrigerator evaporator

Abstract

The utility model discloses an aluminum tube heater for defrosting of a refrigerator evaporator, which comprises an aluminum tube heating tube, heating wires are arranged in the aluminum tube heating tube, the heating wires at the two ends of the aluminum tube heating tube are respectively provided with a part extending out of the aluminum tube heating tube, and the two groups of heating wires of the parts are respectively wound on a copper wire. The heating wire wound on the copper wire portion forms a short circuit, compared with a traditional mode that the heating wire is connected with a power source after being connected with a wire and directly extends out of the power source, the technology of connecting the wire can be omitted, the heating wire is wound on the copper wire and is in a short circuit state when powered on, the extending portion is not heated any more, and therefore the heating effect is improved. Only the aluminum pipe heater part is used for heating, the energy-saving effect is achieved, the function of replacing an end wire with the heating wire is achieved, machining procedures are reduced, the front-end chaining wire part is reduced, the production cost is reduced, and potential safety hazards can be reduced even if the short-circuited heating wire part does not emit heat.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to an aluminum tube heater for defrosting an evaporator of a refrigerator. Background Art

[0002] During the operation of defrosting systems such as refrigerators, freezers, and air conditioners, the surface of the evaporator is easily covered with frost, which reduces the refrigeration effect of the refrigerator. At present, electric heaters are usually used for defrosting, and the heating element is a heating wire, which is coated with an insulating heat-conducting layer. The heating wire of the existing heater is powered by a wire, and the wire needs to be connected to the heating wire. This process has many steps and is costly. It is urgent to simplify the production process and reduce the production cost to replace the existing process. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model provides an aluminum tube heater for defrosting a refrigerator evaporator.

[0004] The utility model provides an aluminum tube heater for defrosting a refrigerator evaporator, comprising an aluminum tube heating tube, wherein the aluminum tube heating tube contains heating wires, the heating wires at both ends of the aluminum tube heating tube have parts extending out of the aluminum tube heating tube, two groups of heating wires in the parts are respectively wound around a copper wire, and when power is turned on, the heating wires wound around the copper wire parts form a short circuit.

[0005] Preferably, the copper wire wound around the heating wire extending out of the aluminum tube heating tube portion is coated with a silicone rubber insulation layer.

[0006] Preferably, an insulating tape is pasted at the connection between the aluminum tube heating tube and the silicone rubber insulation layer coated on the outside of the copper wire.

[0007] Preferably, the other ends of the two groups of heating wires extending out of the aluminum tube heating tube are connected with plugs.

[0008] Preferably, the aluminum tube heating tube is an aluminum tube body with an overall "U"-shaped outline, or is formed by two or more "U"-shaped aluminum tube bodies arranged in parallel and connected by arc-shaped aluminum tube bodies.

[0009] Preferably, the voltage of the aluminum tube heater is 240V, and the power is 241±5%W.

[0010] In the utility model, a refrigerator evaporator defrosting aluminum tube heater is proposed. Compared with the traditional method of connecting a wire and then connecting to a power source, the heating wire directly extends out with the function of the wire, which can save the process of connecting the wire. By winding the heating wire on a copper wire and making it in a short-circuited state when powered on, the extended part is no longer heated, and only the aluminum tube heater part is heated, which has an energy-saving effect and realizes the function of replacing the end wire with the heating wire, reduces the processing steps, reduces the part of the front-end connecting wire, reduces the production cost, and the short-circuited heating wire part does not generate heat, which can also reduce safety hazards.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a partial structural schematic diagram of the utility model.

[0014] Explanation of the numbers in the figure: 1. Heating wire; 2. Aluminum tube heating tube; 3. Copper wire; 4. Plug; 5. Insulating tape; 6. Silicone rubber insulation layer. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] like Figure 1-Figure 2 The aluminum tube heater for defrosting a refrigerator evaporator shown in the figure comprises an aluminum tube heating tube 2, wherein the aluminum tube heating tube 2 contains a heating wire 1, and the heating wires 1 at both ends of the aluminum tube heating tube 2 have a portion extending out of the aluminum tube heating tube 2, and the two groups of heating wires 1 in this portion are respectively wound around a copper wire 3, and when power is turned on, the heating wire 1 wound around the copper wire 3 forms a short circuit.

[0017] Compared with the traditional method of connecting wires and then connecting to the power supply, the heating wire 1 directly extends out with the function of the wire, which can save the process of connecting the wires. By winding the heating wire 1 around a copper wire 3, it is in a short-circuited state when the power is turned on. The extended part is no longer heated, and only the aluminum tube heater part is heated, which has an energy-saving effect and realizes the function of replacing the end wire with the heating wire 1, reducing the processing steps, reducing the part of the front-end connecting wire, and reducing the production cost. The short-circuited heating wire 1 part does not heat up, which can also reduce safety hazards.

[0018] Preferably, the copper wire 3 wound around the portion of the heating wire 1 extending out of the aluminum tube heating tube 2 is coated with a silicone rubber insulating layer 6 to ensure safety.

[0019] Preferably, an insulating tape 5 is adhered to the connection between the aluminum tube heating tube 2 and the silicone rubber insulating layer 6 coated on the outside of the copper wire 3 to further maintain the safety effect.

[0020] Preferably, the other ends of the two groups of heating wires 1 extending out of the aluminum tube heating tube 2 are connected with plugs 4 for providing power.

[0021] Preferably, the aluminum tube heating tube 2 is an aluminum tube body with an overall "U"-shaped outline, or is formed by two or more "U"-shaped aluminum tube bodies arranged in parallel and connected by arc-shaped aluminum tube bodies.

[0022] Preferably, the voltage of the aluminum tube heater is 240V, and the power is 241±5%W.

[0023] The heating wire can withstand AC2500V / min without breakdown or flashover.

[0024] Insulation resistance is ≥500MΩ;

[0025] The pulling force between the terminal and the wire is ≥40N, (70mm / min);

[0026] The tolerance of unmarked dimensions is ±2mm, and the R circle is ±0.5mm;

[0027] Label requirements: The material is self-adhesive, and the color is black text on a white background;

[0028] All materials must meet environmental protection requirements.

[0029] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An aluminum tube heater for defrosting a refrigerator evaporator, comprising an aluminum tube heating tube (2), characterized in that: The aluminum tube heating tube (2) contains a heating wire (1), and the heating wires (1) at both ends of the aluminum tube heating tube (2) have portions extending out of the aluminum tube heating tube (2), and the two groups of heating wires (1) in the portions are respectively wound around a copper wire (3), and when power is turned on, the heating wires (1) wound around the copper wire (3) form a short circuit.

2. The aluminum tube heater for defrosting a refrigerator evaporator according to claim 1, characterized in that: The copper wire (3) wound around the heating wire (1) extending out of the aluminum tube heating tube (2) is coated with a silicone rubber insulation layer (6) on the outside.

3. The aluminum tube heater for defrosting a refrigerator evaporator according to claim 1, characterized in that: An insulating tape (5) is adhered to the connection between the aluminum tube heating tube (2) and the silicone rubber insulating layer coated on the outside of the copper wire (3).

4. The aluminum tube heater for defrosting a refrigerator evaporator according to claim 1, characterized in that: The other ends of the two groups of heating wires (1) extending out of the aluminum tube heating tube (2) are connected to plugs (4).

5. The aluminum tube heater for defrosting a refrigerator evaporator according to claim 1, characterized in that: The aluminum tube heating tube (2) is an aluminum tube body with an overall "U"-shaped outline, or is formed by two or more "U"-shaped aluminum tube bodies arranged in parallel and connected by arc-shaped aluminum tube bodies.

6. The aluminum tube heater for defrosting a refrigerator evaporator according to claim 1, characterized in that: The voltage of the aluminum tube heater is 240V, and the power is 241±5%W.

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