Rare earth heating fan

Abstract

The utility model discloses a rare earth heating fan which comprises a fan module and a heating plate, and the heating plate is installed at the air outlet end of the fan module. The heating plate comprises a first insulating layer, a conductive heating layer, a second insulating layer, a mesh enclosure fixing plate and a wiring plate; the mesh enclosure fixing plate is used as a substrate for brushing and curing the first insulating layer, the conductive heating layer is brushed and cured on the first insulating layer, and the second insulating layer is brushed and cured on the conductive heating layer, so that the conductive heating layer is positioned between the first insulating layer and the second insulating layer; the wiring board is installed on the net cover fixing plate and connected with the conductive heating layer so as to supply current to the conductive heating layer to generate heat. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

Description

Technical Field

[0001] The utility model mainly relates to a rare earth heating fan.

Background Art

[0002] A cross-flow fan, also known as a transverse flow fan, is a type of fan designed to produce a broad and uniform air flow. Through its design, a cross-flow fan can generate a strong air flow. When used in conjunction with a heating plate, it can quickly disperse the heat generated by the heating plate into the air, thereby improving the overall heating efficiency. The existing heating modules used in cross-flow fans are generally conventional heating wires, which are mostly made of metal alloys and have relatively low heating efficiency. Moreover, most conventional heating wires need to be installed in a fixed form, making them inconvenient to use. In view of this, we have improved the structure of the existing fan with a conventional heating wire method and proposed a new fan solution.

Content of the Utility Model

[0003] To solve at least one of the above problems, the utility model proposes a new structural solution. The rare earth heating fan of the utility model adopts the following technical solutions:

[0004] A rare earth heating fan, which includes a fan module and a heating plate. The heating plate is installed at the air outlet end of the fan module.

[0005] The heating plate includes a first insulating layer, a conductive heating layer, a second insulating layer, a mesh cover fixing plate, and a wiring board.

[0006] The mesh cover fixing plate serves as a base for the first insulating layer to be painted and cured. The conductive heating layer is painted and cured on the first insulating layer, and the second insulating layer is painted and cured on the conductive heating layer, so that the conductive heating layer is located between the first insulating layer and the second insulating layer.

[0007] The wiring board is installed on the mesh cover fixing plate, and the wiring board is connected to the conductive heating layer to supply current to the conductive heating layer to generate heat.

[0008] Preferably, the first insulating layer is a blue paste insulating layer, the second insulating layer is a carbon paste insulating layer, the conductive heating layer includes a silver paste layer and a heating screen printing coating, and the positive and negative poles of the wiring board are respectively connected to the silver paste layer.

[0009] Preferably, the heating screen printing coating is connected to the silver paste layer, the silver paste layer is connected to the wiring board, and the heating screen printing coating is connected to the wiring board through the silver paste layer to introduce current. The silver paste layer conducts electricity without generating heat.

[0010] Preferably, the fan module includes a housing, a wind wheel, and a motor. The wind wheel is installed in the air cavity of the housing, and the motor is connected to the wind wheel to drive the wind wheel to generate an air flow.

[0011] Preferably, a wind guiding plate is provided in the air cavity to control the air flow direction.

[0012] The beneficial effects of the present utility model compared with the background technology:

[0013] The present utility model relates to a rare earth heating fan, which comprises a fan module and a heating plate. The heating plate includes a first insulating layer, a conductive heating layer, a second insulating layer, a mesh cover fixing plate and a wiring board; the heating plate is in a plate-like structure, and the first insulating layer, the conductive heating layer and the second insulating layer are directly painted and fixed on the mesh cover fixing plate. During installation, the heating plate can be directly fixed to the housing, which is simple and convenient. In this structure, the heating method of the heating plate is changed from the conventional heating wire heating to the rare earth heating method. By making the rare earth elements into the conductive heating layer, these elements have good thermal stability and relatively high melting points, can work stably in high-temperature environments, and can withstand repeated thermal cycles without significant degradation. In addition, the design of the rare earth heating plate can make the heat distribution uniform and improve the heating efficiency. The structural design of the rare earth heating plate enables them to cover a large area and is suitable for large-area uniform heating. It has the advantages of simple structure, compact cooperation and reasonable design; therefore, it is a product with excellent technical and economic performance.

Description of the Drawings

[0014] Figure 1 Schematic diagram of the heating plate in the preferred embodiment provided by the present utility model;

[0015] Figure 2 Exploded view of the heating plate in the preferred embodiment provided by the present utility model;

[0016] Figure 3 Schematic diagram of the rare earth heating fan in the preferred embodiment provided by the present utility model;

[0017] Figure 4 Exploded view of the rare earth heating fan in the preferred embodiment provided by the present utility model;

[0018] Figure 5 Schematic diagram of the silver paste layer and the heating wire printing coating in the preferred embodiment provided by the present utility model.

Detailed Embodiment

[0019] The embodiments of the present utility model will be described in detail below. The described embodiments are shown in the accompanying drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout.

[0020] In the present utility model, unless otherwise clearly specified and defined, terms such as "assembly", "connection", and "linkage" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection; it can be directly connected, or connected through an intermediate medium, and can be internally connected and communicated between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] The following further describes the specific embodiments of the present utility model in conjunction with the drawings of the specification, so that the technical solutions and their beneficial effects of the present utility model are clearer and more definite. The following description of the embodiments by reference to the drawings is exemplary, aiming to explain the present utility model and should not be construed as a limitation of the present utility model.

[0022] A preferred embodiment provided by the present utility model is as follows Figures 1 to 5 As shown, a rare earth heating fan includes a fan module 1 and a heating plate 2. The heating plate 2 is installed at the air outlet end 15 of the fan module 1; the fan module 1 includes a housing 11, a wind wheel 12, and a motor 13. The wind wheel 12 is installed in the air cavity 16 of the housing 11. The rotating end of the motor 13 penetrates into the air cavity 16 and is connected to the wind wheel 12 to drive the wind wheel 12 to generate air flow. The air duct fixing plate 24 is provided with an air duct 27 for the air flow to pass through. A wind guiding plate 3 is arranged in the air cavity to control the air flow direction. The housing 11 has an air inlet end 14 and an air outlet end 15, and the air inlet end 14 and the air outlet end 15 are respectively located on both sides of the wind guiding plate 3, and the wind guiding plate 3 is arc-shaped.

[0023] The heating plate 2 includes a first insulating layer 21, a conductive heating layer 22, a second insulating layer 23, an air duct fixing plate 24, and a wiring board 25; the air duct fixing plate 24 serves as a base for the first insulating layer 21 to be coated and cured. The conductive heating layer 22 is coated and cured on the first insulating layer 21, and the second insulating layer 23 is coated and cured on the conductive heating layer 22, so that the conductive heating layer 22 is located between the first insulating layer 21 and the second insulating layer 23; the wiring board 25 is installed on the air duct fixing plate 24, and the wiring board 25 is connected to the conductive heating layer 22 to supply current to the conductive heating layer 22 to generate heat; the air duct fixing plate 24 is installed with a thermostat 26, and the wiring board 25 is connected to the thermostat 26.

[0024] The first insulating layer 21 is a blue paste insulating layer, the second insulating layer 23 is a carbon paste insulating layer. The conductive heating layer 22 includes a silver paste layer 28 and a heating screen printing coating 29. The positive and negative poles of the wiring board 25 are respectively connected to the silver paste layer 28 and the heating screen printing coating 29. The heating screen printing coating 29 is connected to the silver paste layer 28, and the silver paste layer 28 is connected to the wiring board 25. The heating screen printing coating 29 is connected to the wiring board 25 through the silver paste layer 28 to introduce current, and the silver paste layer conducts electricity without generating heat.

[0025] Furthermore, the heating silk-screen coating 29 is divided into several segments to match the shape of the mesh cover fixing plate 24; silver paste layers 28 are respectively arranged at both ends of the heating silk-screen coating 29, and each segment of the heating silk-screen coating 29 is connected to the silver paste layer 28, so that the silver paste layer 28 and the heating silk-screen coating 29 form a circuit. The positive and negative electrodes of the wiring board 25 are connected to the silver paste layer 28 to supply current. The silver paste layer 28 functions as a conductor, and the heating silk-screen coating 29 is made of a high-resistance metal material. The heat generated by the heating silk-screen coating is concentrated in the central area of the mesh cover fixing plate 24. The blue paste material uses the dielectric paste of 07H-1114 from Shenzhen Saiya Electronic Paste Co., Ltd., and the silver paste layer 28 uses 01H-0705; the heating silk-screen coating 29 is a thick-film heating element made of rare earth elements. This heating element is composed of rare earth elements (such as cerium, lanthanum, praseodymium, etc.) and conductive powders (such as zirconia, niobium oxide, etc.). Rare earth elements have excellent electromagnetic properties and stable chemical properties, while conductive powders provide good electrical conductivity and thermal stability.

[0026] Conventional heating filaments are usually made of metals, such as nickel-chromium alloys. Such materials have a high resistivity and can generate a large amount of heat when energized. However, due to the relatively thin size of the heating filaments, the heat is easily concentrated in a small area when the heating filaments are heated. Therefore, they are not suitable for large-area uniform heating and are more suitable for small-area local heating. This heating plate solution adopts a rare earth heating method, using rare earth elements to form a conductive heating layer. These elements have good thermal stability and a high melting point, can work stably in a high-temperature environment, and can withstand repeated thermal cycles without significant degradation. In addition, the design of the rare earth heating plate can make the heat distribution uniform and improve the heating efficiency. The structural design of the rare earth heating plate enables them to cover a large area and is suitable for large-area uniform heating. In this structure, the heating plate 2 adopts a plate-like structure, increasing the contact surface, and can be adapted to a cross-flow fan with a wide and uniform air flow. The mesh cover fixing plate 24 serves as a base for facilitating the coating of each layer on it. The mesh cover fixing plate 24 is provided with air ducts 27 for air flow. The motor 13 drives the wind wheel 12 to rotate in the air cavity and cooperates with the air guide plate 3 to draw in the air from the air inlet end 14 and discharge it at the air outlet end 15. The heating plate 2 is installed at the air outlet end 15, and the air flow passes through the air ducts 27 of the mesh cover fixing plate 24 to form a hot air flow and blow out. The heating silk-screen coating 29 serves as the heating part, and the wiring board 25 is equipped with a temperature controller 26 to monitor the heating temperature in real time and control the on-off of the current of the conductive heating layer 22 through the wiring board 25.

[0027] In the description of the specification, the description referring to terms such as "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0028] Through the description of the above structures and principles, those skilled in the art should understand that the present utility model is not limited to the above specific embodiments. Improvements and substitutions using well-known techniques in the art based on the present utility model fall within the protection scope of the present utility model, which should be defined by each claim.

Claims

1. A rare earth heating fan, characterized in that: It includes a fan module and a heating plate, and the heating plate is installed at the air outlet end of the fan module; The heating plate includes a first insulating layer, a conductive heating layer, a second insulating layer, a mesh cover fixing plate and a wiring board; The mesh cover fixing plate serves as a base for the first insulating layer to be coated and cured, the conductive heating layer is coated and cured on the first insulating layer, and the second insulating layer is coated and cured on the conductive heating layer, so that the conductive heating layer is located between the first insulating layer and the second insulating layer; The wiring board is installed on the mesh cover fixing plate, and the wiring board is connected to the conductive heating layer to supply current to the conductive heating layer to generate heat.

2. The rare earth heating fan according to claim 1, wherein: The first insulating layer is a blue paste insulating layer, the second insulating layer is a carbon paste insulating layer, the conductive heating layer includes a silver paste layer and a heating screen printing coating, and the positive and negative poles of the wiring board are respectively connected to the silver paste layer.

3. The rare earth heating fan according to claim 2, characterized in that: The heating screen printing coating is connected to the silver paste layer, the silver paste layer is connected to the wiring board, and the heating screen printing coating is connected to the wiring board through the silver paste layer to conduct current, and the silver paste layer conducts electricity without generating heat.

4. A rare earth heating fan according to claim 1, characterized in that: The fan module includes a housing, a wind wheel and a motor. The wind wheel is installed in the wind cavity of the housing, and the motor is connected to the wind wheel to drive the wind wheel to generate airflow.

5. The rare earth heating fan according to claim 4, characterized in that: A wind guide plate is provided in the wind cavity to control the air flow direction.

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