Warm air blower

Abstract

The utility model discloses a warm air blower, which belongs to the technical field of heating and comprises a machine body, a fan and a heating carrier are arranged in the machine body, an outer air duct and an inner air duct are formed in the machine body through the heating carrier, and a heating film or a heating coating is arranged on the inner wall or the outer wall of the heating carrier. At least two inner and outer air channels are formed in the machine body of the structure, the problem of disordered movement during air flowing is solved, the air inlet amount and the air outlet amount of the machine body can be improved, large-area air flowing is achieved, and the safety problems of poor local heat dissipation performance, too high local temperature and the like are solved; the fan heater can achieve the effect of generating heat when powered on, is high in heat efficiency and low in energy consumption, is matched with large-area air flow of the outer air channel and the inner air channel, can achieve large-range warm air blowing and guiding through the fan heater, improves the user experience, is small in size of the heating film or the heating coating, is low in occupancy rate of the internal space of a machine body, and facilitates small-size arrangement of the fan heater.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating, in particular to a warm air blower. BACKGROUND

[0002] The prior art warm air blower generally adopts PTC heater as heat source, and utilizes axial flow fan or turbine fan to blow air at the rear end, so as to blow out the heat generated by PTC heater to realize the regulation of ambient temperature. For example, the utility model patent with the patent number CN202122519724.5 discloses a kind of PTC warm air blower, the invention patent with the patent number CN201120540827.3 discloses a kind of PTC warm air blower structure, etc. However, in actual use, axial flow fan or turbine fan cannot well blow and guide the heat generated by PTC heater, causing poor air flow around PTC heater, poor local heat dissipation, not only easily leading to local temperature too high and other safety hazards, but also the blown hot air is not uniform enough, in addition, PTC heater is relatively large in size, occupying the internal space of warm air blower. Therefore, it is necessary to further improve. SUMMARY

[0003] The utility model aims at providing a kind of warm air blower to overcome the deficiencies in prior art.

[0004] A kind of warm air blower designed for this purpose, comprising a body, the body is internally provided with fan and heating carrier, the body is internally formed outer air duct and inner air duct by the heating carrier, the inner wall or outer wall of the heating carrier is provided with heating film or heating coating.

[0005] The heating carrier is hollow circular, or oval, or polygonal in axial extension.

[0006] The heating carrier is arranged through front and back, and the fan is located at the rear end or front end of the heating carrier.

[0007] The heating carrier and / or the body are made of transparent, or translucent, or opaque material.

[0008] The heating film or the heating coating is made of transparent, or translucent, or opaque material.

[0009] The heating film is a flexible heating film and is pasted along the inner wall or outer wall of the heating carrier, or the heating coating is a heating coating and is applied along the inner wall or outer wall of the heating carrier.

[0010] The body is further provided with a circuit board, the heating film or heating coating is further provided with a conductive wire and is electrically connected to the circuit board through the conductive wire, and the circuit board is further electrically connected to the fan.

[0011] The electrode is an electric plate piece and is pasted at both ends of the heating film or the heating coating, or the electrode is an electric plate coating and is applied at both ends of the heating film or the heating coating, and the heating film or the heating coating is connected with the conductive wire through the electrode.

[0012] The two end electrodes are directly connected with the conductive wire.

[0013] Or, a connecting wire is arranged between the two end electrodes and is electrically connected through the connecting wire, and the connecting wire is further connected with the conductive wire.

[0014] The body comprises an outer shell and a rear cover plate, the outer shell is arranged through the front and rear, the rear cover plate is fixedly arranged at the rear end opening of the outer shell, the fan is fixed on the outer shell or the rear cover plate, the heating carrier is arranged through the front and rear and is located in front of the fan, the outer air duct is formed between the periphery of the heating carrier and the outer shell, the inner air duct is formed in the heating carrier, the protective cover is arranged at the front end opening of the outer shell, and the air guide cover is arranged on the outer shell or the rear cover plate.

[0015] The heating carrier separates the inner part of the body into the outer air duct and the inner air duct, at least two air ducts are formed in the body, the problem of disorderly flow of air is reduced, the air inlet and outlet of the body are improved, large-area air flow is achieved, the safety problems such as poor local heat dissipation and high local temperature are reduced, the heating film or the heating coating is arranged on the inner wall or the outer wall of the heating carrier, the heating film or the heating coating has a fast heating speed during work, can generate heat when powered on, has high thermal efficiency and low energy consumption, is matched with the large-area air flow of the outer air duct and the inner air duct, can make the warm air blower realize wide-range warm air blowing, improves user experience, the heating film or the heating coating has small volume and low space occupancy in the body, and is beneficial to small-volume setting of the warm air blower. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an assembly structure schematic view of one embodiment of the utility model.

[0017] Figure 2 It is another view assembly structure schematic view of one embodiment of the utility model.

[0018] Figure 3 It is an assembly cross-section structure schematic view of one embodiment of the utility model.

[0019] Figure 4 It is an exploded structure schematic view of one embodiment of the utility model.

[0020] Figure 5Another perspective decomposition structure schematic view of the embodiment of the utility model.

[0021] In the drawing: 1-fan, 2-heating carrier, 3-outer air duct, 4-inner air duct, 5-circuit board, 6-connection line, 7-outer shell, 8-back cover plate, 9-protective cover, 9.1-protective positioning groove, 9.2-protective outer layer air net, 9.3-protective inner layer air net, 10-duct, 10.1-duct positioning groove, 10.2-duct outer layer air net, 10.3-duct inner layer air net, 11-fan cavity, 12-fixing seat, 12.1-bracket, 14-electrode. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] The utility model is further described below in combination with the drawings and embodiments.

[0024] Reference Figures 1-5 The warm air blower comprises a machine body, a fan 1 and a heating carrier 2 are arranged in the machine body, the machine body is formed with an outer air duct 3 and an inner air duct 4 through the heating carrier 2, and a heating film or a heating coating is arranged on the inner wall or the outer wall of the heating carrier 2.

[0025] In this embodiment, the machine body is separated into the outer air duct 3 and the inner air duct 4 by the heating carrier 2, so that at least two air ducts are formed in the machine body, which not only can reduce the problem of random flow of air, but also can improve the air inlet and outlet capacity of the machine body, thereby achieving large-area air flow and reducing the safety problems such as poor local heat dissipation and local high temperature, and the heating film or the heating coating is arranged on the inner wall or the outer wall of the heating carrier 2, the heating film or the heating coating can generate heat at a high speed when working, can realize the effect of generating heat as soon as power is supplied, has high thermal efficiency and low energy consumption, and can make the warm air blower realize wide-range warm air blowing and improve the user experience, and the heating film or the heating coating has small volume and low space occupancy in the machine body, which is beneficial to the small-size design of the warm air blower.

[0026] The heating carrier 2 is a hollow circular shape, an oval shape or a polygonal shape extending in the axial direction.

[0027] The heating carrier 2 is arranged through the front and back, and the fan 1 is located at the front end or the rear end of the heating carrier 2.

[0028] In this embodiment, the fan 1 is located at the rear end of the heat carrier 2, and blows air towards the heat carrier 2 during operation to blow and guide the heat generated by the heat carrier 2, thereby achieving the adjustment of the ambient temperature. In addition, the fan 1 is located at the front end of the heat carrier 2, and blows air away from the heat carrier 2 during operation to extract the heat generated by the heat carrier 2, thereby achieving the adjustment of the ambient temperature.

[0029] The heat carrier 2 and / or the body are made of transparent, semi-transparent, or opaque materials. Among them, the heat carrier 2 also needs to be made of high-temperature resistant materials to avoid damage caused by the heat of the heating film or the heating coating.

[0030] Similarly, the heating film or the heating coating is made of transparent, semi-transparent, or opaque materials, thereby improving the appearance of the fan heater.

[0031] The heating film is a flexible heating film and is pasted along the inner wall or the outer wall of the heat carrier 2, or the heating coating is a heating coating and is applied along the inner wall or the outer wall of the heat carrier 2.

[0032] In this embodiment, the flexible heating film can be selected from derivatives and compounds with carbon as part or all of the constituent elements, including but not limited to one or more of carbon nanotube film, graphene film, carbon fiber film, carbon film, and carbon fiber cloth. The flexible heating film formed by the carbon material has a certain flexibility and is pasted on the entire inner wall or outer wall of the heat carrier 2 to improve the heat generation area and efficiency.

[0033] The heating coating can be selected from derivative coatings and compound coatings with carbon as part or all of the constituent elements, including but not limited to one or more of carbon nanotube coating, graphene coating, carbon fiber coating, and carbon coating. It is applied to the entire inner wall or outer wall of the heat carrier 2 in a smearing manner to improve the heat generation area and efficiency.

[0034] In addition, the heating film is an infrared radiation heating film, and the heating coating can also be an infrared radiation heating coating.

[0035] The body is also provided with a circuit board 5, and the heating film or the heating coating is also provided with a conductive wire and is electrically connected to the circuit board 5 through the conductive wire. The circuit board 5 is also electrically connected to the fan 1.

[0036] The heating film or the heating coating is respectively provided with electrodes at both ends.

[0037] The electrode is an electric sheet which has a certain flexibility and is pasted at both ends of the heating film or the heating coating, or the electrode is an electric coating which is applied at both ends of the heating film or the heating coating. The heating film or the heating coating is connected to the conductive wire through the electrode.

[0038] The two end electrodes 14 are directly connected with conductive wires, that is, the two end electrodes 14 are directly connected with conductive wires, and then are directly connected with the circuit board 5 through the conductive wires.

[0039] In addition, the two end electrodes 14 are connected with a connecting wire 6, and are electrically connected through the connecting wire 6. The connecting wire 6 is connected with a conductive wire, that is, the two end electrodes 14 are connected with the connecting wire 6, and are electrically connected through the connecting wire 6. The connecting wire 6 extends to the side of the heating film or the heating coating, and is connected with the conductive wire, and then is electrically connected with the circuit board 5 through the conductive wire.

[0040] In the embodiment, the two electrode sheets 14 are electrically connected with the circuit board 5 through the conductive wires. The two electrode sheets 14 can be made of low-resistivity metal or alloy, such as silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or the above-mentioned metal alloy materials. The two electrode sheets 14 can be metal sheets arranged between the outer surface of the heating film or the heating coating and the heating carrier 2. The two electrode sheets 14 can also be conductive coatings formed on the outer surface of the heating film or the heating coating, for example, printed on the outer surface of the heating film or the heating coating by silk-screen printing.

[0041] The machine body includes an outer shell 7 and a rear cover plate 8. The outer shell 7 is arranged through the front and rear, and the rear cover plate 8 is fixedly arranged at the rear end opening of the outer shell 7. The fan 1 is fixed on the outer shell 7 or the rear cover plate 8. The heating carrier 2 is arranged through the front and rear and located in front of the fan 1. The outer periphery of the heating carrier 2 and the outer shell 7 form an outer air duct 3, and the inside of the heating carrier 2 forms an inner air duct 4.

[0042] In the embodiment, the outer shell 7 and the heating carrier 2 are both hollow circular shapes extending in the axial direction. The heating carrier 2 can be transparent glass or translucent glass. The outer shell 7 can be made of transparent, translucent, or opaque plastic or metal material. The heating carrier 2 is located in the outer shell 7, and the two form the outer air duct 3 and the inner air duct 4. The outer air duct 3 and the inner air duct 4 are independent of each other.

[0043] A protective cover 9 is arranged at the front end opening of the outer shell 7. An air guide cover 10 is arranged on the outer shell 7 or the rear cover plate 8. The protective cover 9 is provided with a protective positioning groove 9.1, and the air guide cover 10 is provided with an air guide positioning groove 10.1. The front and rear ends of the heating carrier 2 are respectively positioned on the protective positioning groove 9.1 and the air guide positioning groove 10.1. The rear cover plate 8 and the air guide cover 10 form a fan cavity 11. The fan 1 is arranged in the fan cavity 11. The rear cover plate 8 is provided with a plurality of air inlet holes 8.1 corresponding to the fan cavity 11.

[0044] In the embodiment, the front and back cooperation between the protection positioning groove 9.1 and the air guide positioning groove 10.1 is used to realize the positioning of the front and back ends of the heat generating carrier 2, so as to improve the assembly stability of the heat generating carrier 2. Meanwhile, the protection positioning groove 9.1 and the air guide positioning groove 10.1 are respectively provided with wire grooves for the passage of the conductive wire, so as to facilitate the lead of the conductive wire. The fan cavity 11 is located at the rear side of the outer air duct 3 and the inner air duct 4. When the fan 1 works, air is sucked into the fan cavity 11 through the plurality of air inlet holes 8.1, and is blown into the outer air duct 3 and the inner air duct 4 through the plurality of air inlet holes 8.1 at the same time, so that the heat in the outer air duct 3 and the inner air duct 4 is blown out through the front opening of the outer shell 7, to realize the blowing and guiding of the warm air.

[0045] The protection cover 9 is respectively provided with a protection outer layer air net 9.2 and a protection inner layer air net 9.3 corresponding to the outer air duct 3 and the inner air duct 4. The air guide cover 10 is respectively provided with an air guide outer layer air net 10.2 and an air guide inner layer air net 10.3 corresponding to the outer air duct 3 and the inner air duct 4.

[0046] The protection outer layer air net 9.2, the protection inner layer air net 9.3, the air guide outer layer air net 10.2 and the air guide inner layer air net 10.3 not only can protect the heat generating carrier 2, but also can realize the blowing and guiding of the heat in the outer air duct 3 and the inner air duct 4.

[0047] In the embodiment, the heat generating film or heat generating coating is arranged on the outer wall of the heat generating carrier 2, and generates heat into the outer air duct 3 when working. The heat in the outer air duct 3 can be radiated to the inner air duct 4, so as to realize heat dissipation and effectively utilize the heat for further blowing and guiding.

[0048] In the embodiment, the fan 1 is fixed on the air guide cover 10, the air guide cover 10 is fixed on the rear cover plate 8, the protection cover 9 is fixed on the outer shell 7, the heat generating carrier 2 is positioned between the protection cover 9 and the air guide cover 10, and the outer shell 7 and the rear cover plate 8 are fixed and matched with each other, so as to realize the assembly of the machine body.

[0049] The warm air blower further comprises a fixing seat 12, the fixing seat 12 is provided with a circuit board 5 and a support 12.1, the circuit board 5 is electrically connected with the fan 1 and the heat generating film or heat generating coating, and the fixing seat 12 is fixed or rotatably connected with the outer shell 7 and / or the rear cover plate 8 through the support 12.1.

[0050] In the embodiment, the rear cover plate 8 is respectively provided with an extension edge in the direction of the outer shell 7 on the symmetrical two sides, the outer shell 7 is provided with an assembly groove corresponding to the extension edge, and the rear cover plate 8 is assembled on the assembly groove of the outer shell 7 through the extension edge.

[0051] The extension edge and the assembly groove are provided with fastening holes, the support 12.1 is provided with fastening matching holes corresponding to the fastening holes, and the fastening holes and the fastening matching holes are fixed to each other through fasteners, so that the machine body and the fixing base 12 are fixed and matched, in addition, the extension edge and the assembly groove are provided with rotating shaft holes, the support 12.1 is provided with rotating shafts and is connected with the rotating shaft holes through the rotating shafts, so that the machine body and the fixing base 12 are rotationally matched, thereby enabling the user to rotate the warm air blowing and guiding angle of the machine body according to the use requirement.

[0052] The above is the preferred scheme of the present application, and the basic principle, main features and advantages of the present application are shown and described. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application. These changes and improvements all fall within the scope of the present application, and the scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A space heater, comprising a body, characterized in that: The machine body is equipped with a fan and a heating carrier. The heating carrier forms an external air duct and an internal air duct inside the machine body. The heating carrier has a heating film or heating coating on its inner or outer wall.

2. The heater according to claim 1, characterized in that: The heating carrier is an axially extending hollow circle, ellipse, or polygon.

3. The heater according to claim 1, characterized in that: The heating carrier is arranged through the front and rear, and the fan is located at the rear or front of the heating carrier.

4. The heater according to claim 1, characterized in that: The heating carrier and / or the body are made of transparent, semi-transparent, or opaque materials.

5. The heater according to claim 1, characterized in that: The heating film or the heating coating is made of a transparent, semi-transparent, or opaque material.

6. The heater according to claim 1, characterized in that: The heating film is a flexible heating film and is pasted along the inner or outer wall of the heating carrier (2), or the heating coating is a heating coating and is applied along the inner or outer wall of the heating carrier (2).

7. The heater according to claim 1, characterized in that: The machine body is also provided with a circuit board, and the heating film or heating coating is also provided with conductive wires, which are electrically connected to the circuit board through the conductive wires. The circuit board is also electrically connected to the fan.

8. The heater according to claim 7, characterized in that: Electrodes are respectively provided at both ends of the heating film or heating coating. The electrodes are electrode plates and are attached to both ends of the heating film or heating coating. Alternatively, the electrodes are electrode coatings and are applied to both ends of the heating film or heating coating. The heating film or heating coating is connected to the conductive wire through the electrodes.

9. The heater according to claim 8, characterized in that: The two electrodes are directly connected to the conductive wires; Alternatively, a connecting line is provided between the two electrodes and they are electrically connected through the connecting line, and the connecting line is further connected to the conductive line.

10. The warm air heater according to any one of claims 1-8, characterized in that: The body includes an outer shell and a rear cover. The outer shell extends through the front and rear. The rear cover is fixedly installed at the rear opening of the outer shell. The fan is fixed to the outer shell or the rear cover. The heating carrier extends through the front and rear and is located in front of the fan. An external air duct is formed between the periphery of the heating carrier and the outer shell. An internal air duct is formed inside the heating carrier. A protective cover is provided at the front opening of the outer shell. An air guide cover (10) is provided on the outer shell or the rear cover.

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