Uniform defrosting structure of air-cooled defrosting electric heating tube of refrigerator

Abstract

This utility model provides a uniform defrosting structure for a defrosting heating element in a frost-free refrigerator, relating to the field of defrosting equipment technology. It includes a heating box, a connecting frame, an air diffuser, a heating element, a heat exchanger, a fan motor, and a main frame. The main frame has circular mounting holes on both sides, and each heating element has a set of circular heads on both sides, which are mounted on the sides of the main frame. The heat exchanger has a series of through-holes inside, and one side of the heating element is mounted on one side of these holes. The connecting frame has two sets of threaded circular holes on one side, and each side of the heating box has a set of connecting plates with a set of circular holes. The connecting plates on both sides of the heating box are fastened to one side of the connecting frame with screws. The mounting of the heating element to the main frame and the grouped electrical connections of the heat exchanger allow for partial replacement, reducing maintenance costs. The fan motor accelerates hot air diffusion, expanding the range and improving efficiency. The connecting frame optimizes the path, reducing blind spots and ensuring uniform defrosting.

Description

Technical Field

[0001] This utility model belongs to the field of defrosting equipment technology, and more specifically, it relates to a uniform defrosting structure for a defrosting heating element in an air-cooled refrigerator. Background Technology

[0002] During operation, frost forms on the evaporator surface of frost-free refrigerators due to condensation of moisture in the air, affecting cooling efficiency and refrigerator performance, thus requiring periodic defrosting. Traditional defrosting devices mostly use electric heating elements for direct heating, but this suffers from uneven heat distribution, long defrosting times, and high energy consumption. Existing defrosting structures still have room for optimization in terms of heating element layout, hot air conduction path, and temperature control methods. With increasing consumer demands for refrigerator energy efficiency and user experience, developing a structure that achieves uniform defrosting with electric heating elements, shortens the defrosting cycle, reduces energy consumption, and improves defrosting effectiveness is of great significance. This invention aims to provide a uniform defrosting structure for frost-free refrigerators using electric heating elements, solving the problems existing in the current technology through innovative structural design and component layout.

[0003] Based on the above, traditional air-cooled refrigerators typically use a single-piece defrosting heating element, requiring replacement of the entire unit if any part is damaged, resulting in high repair costs. Furthermore, a single heating element has a limited heating area and slow heat diffusion, making it difficult to quickly cover the entire frost surface of the evaporator, leading to low defrosting efficiency and increased energy consumption. In addition, the existing structure lacks optimized design for hot air flow paths, easily creating heating blind spots that further affect defrosting performance. Therefore, developing a defrosting structure that allows for partial replacement, uniform heating, and high efficiency has become an urgent problem for the industry to solve. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a uniform defrosting structure for defrosting heating tubes in air-cooled refrigerators, which solves the problems of high maintenance costs, slow heating coverage and low efficiency, and blind spots due to unoptimized hot air paths in existing uniform defrosting structures for defrosting heating tubes in air-cooled refrigerators.

[0005] This utility model discloses a defrosting heating element structure for a wind-cooled refrigerator that provides uniform defrosting, achieved through the following specific technical means:

[0006] A defrosting structure for a frost-free refrigerator using an electric heating element includes a heating box, a connecting frame, an air diffuser, an electric heating element, a heat exchanger, a fan motor, and a main frame. The main frame has circular mounting holes on both sides, and each side of the electric heating element has a set of circular heads, which are mounted on both sides of the main frame. The heat exchanger has multiple through-holes inside, and one side of the electric heating element is mounted in one of these through-holes. The connecting frame has two sets of threaded circular holes on one side, and each side of the heating box has a connecting plate. Each of the connecting plates is provided with a set of circular holes. The connecting plates on both sides of the electric heating box are fastened to one side of the connecting frame by screws. Each of the two sides of the fan motor is provided with a set of square connecting plates, and each of the square connecting plates on both sides of the fan motor is provided with a set of circular holes. The middle part of the connecting frame is provided with two sets of threaded holes, and the square connecting plates on both sides of the fan motor are fastened to the middle part of the connecting frame by screws. Each of the four sides of the main frame is provided with a set of square mounting slots. One side of the air expansion plate is provided with a set of square mounting blocks, and one side of the air expansion plate is fastened to the square mounting slots on the four sides of the main frame.

[0007] Furthermore, the top of the electric heating box is provided with a set of circular connecting pipes, and a connecting wire is clamped and connected inside the circular connecting pipes at the top of the electric heating box. The upper part of the heat connector is provided with a set of electrical connection holes, and the other side of the connecting wire is clamped and connected to the upper part of the heat connector.

[0008] Furthermore, a set of fan sleeves is fastened to one side of the fan motor shaft. The fan sleeves have six sets of square mounting slots on the outside, and fan blades are mounted in the square mounting slots on the outside of the fan sleeves.

[0009] Furthermore, each of the four corners of the main frame is provided with a set of square slots, and each of the four corners of the connecting frame is provided with a set of square mounting blocks, and the square mounting blocks at the four corners of the connecting frame are mounted in the square mounting slots at the four corners of the main frame.

[0010] Furthermore, each of the four corners of the connecting frame is provided with a set of round connectors, and each of the round connectors at the four corners of the connecting frame is fitted with a set of fixing plates.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model achieves partial replacement and reduces maintenance costs by setting up electric heating tubes and main frame clamping connection and grouping electric connection of heat connectors.

[0013] 2. This utility model accelerates the diffusion of hot air, expands the heating coverage area, and improves defrosting efficiency by setting up a fan motor, fan blades, and air expansion plate.

[0014] 3. This utility model optimizes the hot air path, reduces heating blind spots, and ensures defrosting uniformity by setting a connecting frame to fix the air expansion plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0016] Figure 2 This is a structural schematic diagram of the rear part of the main body of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the electric heating tube device of this utility model.

[0018] Figure 4 This is a cross-sectional structural schematic diagram of the fan device of this utility model.

[0019] Figure 5 This is a cross-sectional structural schematic diagram of the heat exchanger device of this utility model.

[0020] Figure 6 This is a cross-sectional structural schematic diagram of the connecting wire device of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Electric heating box; 2. Connecting frame; 3. Air diffuser; 4. Electric heating tube; 5. Heat exchanger; 6. Fixing plate; 7. Fan motor; 8. Main frame; 101. Connecting wire; 701. Fan blade; 702. Fan sleeve. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 6 As shown:

[0026] This utility model provides a uniform defrosting structure for a frost-free refrigerator using an electric heating element, comprising a heating box 1, a connecting frame 2, an air diffuser 3, an electric heating element 4, a heat exchanger 5, a fan motor 7, and a main frame 8. The main frame 8 has circular mounting holes on both sides, and the electric heating element 4 has a set of circular heads on each side, which are mounted on both sides of the main frame 8. The heat exchanger 5 has a series of through-holes inside, and one side of the electric heating element 4 is mounted in one of these through-holes. The connecting frame 2 has two sets of threaded circular holes on one side, and the heating box 1 has a set of connecting plates on each side. Each side of the electric heating box 1 has a set of circular holes on the connecting plates. The connecting plates on both sides of the electric heating box 1 are fastened to one side of the connecting frame 2 by screws. Each side of the fan motor 7 has a set of square connecting plates, and each side of the square connecting plates of the fan motor 7 has a set of circular holes. The middle part of the connecting frame 2 has two sets of threaded holes, and the square connecting plates on both sides of the fan motor 7 are fastened to the middle part of the connecting frame 2 by screws. Each of the four sides of the main frame 8 has a set of square mounting slots. One side of the air expansion plate 3 has a set of square mounting blocks, and one side of the air expansion plate 3 is mounted in the square mounting slots on the four sides of the main frame 8.

[0027] The electric heating box 1 has a set of circular connecting pipes at the top, and a connecting wire 101 is clamped and connected inside the circular connecting pipes at the top of the electric heating box 1. The heat exchanger 5 has a set of electrical connection holes at the top, and the other side of the connecting wire 101 is clamped and connected to the upper part of the heat exchanger 5. The circular connecting pipes of the electric heating box 1 and the connecting wire 101 are clamped together, and the electrical connection holes of the heat exchanger 5 are connected to the other side of the connecting wire 101. This not only ensures a stable conductive connection, but also ensures that the current is stably transmitted from the electric heating box 1 to the heat exchanger 5, thus ensuring smooth heating.

[0028] A set of fan sleeves 702 is fastened to one side of the shaft of the fan motor 7. The fan sleeves 702 have six sets of square mounting slots on the outside. Fan blades 701 are mounted in the square mounting slots on the outside of the fan sleeves 702. The fan sleeves 702 are securely connected to the fan blades 701 through the square mounting slots, ensuring that the fan blades 701 rotate synchronously and efficiently when the shaft of the fan motor 7 rotates. This improves the convenience of fan blade installation and disassembly and ensures stable air supply.

[0029] The main frame 8 has a set of square slots at each of its four corners, and the connecting frame 2 has a set of square mounting blocks at each of its four corners. The square mounting blocks at the four corners of the connecting frame 2 are engaged with the square slots at the four corners of the main frame 8. The engagement of the square slots at the four corners of the main frame 8 and the square mounting blocks at the four corners of the connecting frame 2 enables them to quickly achieve precise docking and stable connection, while also facilitating disassembly and maintenance and ensuring the stability of the overall structure.

[0030] The connecting frame 2 has a set of round connectors at each of its four corners, and a set of fixing plates 6 are snapped onto each of the round connectors at the four corners of the connecting frame 2. The fixing plates 6 can be quickly positioned and installed by snapping onto the round connectors at the four corners of the connecting frame 2. The fixing plates 6 enhance the connection stability between the connecting frame 2 and the external structure and improve the installation reliability of the overall device.

[0031] The specific usage and function of this embodiment are as follows:

[0032] In this invention, the heat exchanger 5 and the electric heating box 1 are connected by a connecting wire 101. The electric heating box 1 regulates and stabilizes the current, which is conducted to the electric heating tube 4 through the heat exchanger 5. The electric heating tube 4 generates defrosting heat when energized. After the fan motor 7 starts, the output shaft drives the fan blade 701 to rotate through the fan sleeve 702, generating airflow that blows the heat from the electric heating tube 4 to the surroundings. The air diffuser 3 is fixed by the square mounting slot of the main frame 8, which diffuses the airflow to a wider range and ensures that the evaporator surface is heated evenly. The electric heating box 1 is fixed by the connecting frame 2, which protects the internal components and guides the hot air path. The fixing plate 6 is clamped onto the round connector of the connecting frame 2 to enhance the overall structural stability. All components are connected by clamps or screws, which facilitates disassembly and maintenance, achieves efficient and uniform defrosting, and reduces energy consumption and maintenance costs.

[0033] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A defrosting structure for a defrosting heating element in a wind-cooled refrigerator, characterized in that: It includes an electric heating box (1), a connecting frame (2), an air expansion plate (3), an electric heating tube (4), a heat exchanger (5), a fan motor (7), and a main frame (8); The main frame (8) has circular mounting holes on both sides, and the electric heating tube (4) has a set of circular heads on both sides. The circular heads on both sides of the electric heating tube (4) are mounted on both sides of the main frame (8). The heat exchanger (5) has a set of through electrical connection holes inside, and one side of the electric heating tube (4) is mounted on the electrical connection hole inside the heat exchanger (5). The connecting frame (2) has two sets of threaded circular holes on one side. The electric heating box (1) has a set of connecting plates on both sides, and each of the connecting plates on both sides of the electric heating box (1) has a set of circular holes. The connecting plates on both sides of the electric heating box (1) are fastened to one side of the connecting frame (2) by screws. The fan motor (7) has a set of square connecting plates on both sides, and each of the square connecting plates on both sides of the fan motor (7) has a set of circular holes. The middle part of the connecting frame (2) has two sets of threaded holes, and the square connecting plates on both sides of the fan motor (7) are fastened to the middle part of the connecting frame (2) by screws. The main frame (8) has a set of square mounting slots on each of its four sides, and the air expansion plate (3) has a set of square mounting blocks on one side, and the air expansion plate (3) is mounted in the square mounting slots on the four sides of the main frame (8).

2. The defrosting structure of a defrosting heating element in a wind-cooled refrigerator as described in claim 1, characterized in that: The electric heating box (1) is provided with a set of round connecting pipes at the top, and a connecting wire (101) is installed inside the round connecting pipes at the top of the electric heating box (1). The heat connector (5) is provided with a set of electrical connection holes at the top, and the other side of the connecting wire (101) is installed and connected to the top of the heat connector (5).

3. The defrosting heating element uniform defrosting structure for a wind-cooled refrigerator as described in claim 1, characterized in that: A set of fan sleeves (702) is fastened to one side of the fan motor (7). The fan sleeves (702) have six sets of square mounting slots on the outside, and fan blades (701) are mounted in the square mounting slots on the outside of the fan sleeves (702).

4. The defrosting heating element uniform defrosting structure for a wind-cooled refrigerator as described in claim 1, characterized in that: The main frame (8) has a set of square slots at each of its four corners, and the connecting frame (2) has a set of square mounting blocks at each of its four corners. The square mounting blocks at the four corners of the connecting frame (2) are mounted in the square mounting slots at the four corners of the main frame (8).

5. The defrosting heating element uniform defrosting structure for a wind-cooled refrigerator as described in claim 1, characterized in that: The connecting frame (2) has a set of round connecting heads at each of its four corners, and a set of fixing plates (6) are fastened to each of the round connecting heads at the four corners of the connecting frame (2).

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